CN101917033A - LED display screen power supply system with DC time control function - Google Patents

Abstract

The invention relates to an LED display screen power supply system with DC time control function, which has the time control function and battery protection function on an LED screen. The system comprises a charger and a DC power circuit, wherein the charger is connected with an AC 220V mains supply; the DC power circuit is connected with the charger and consists of accumulator jars; the DC power circuit is connected with a DC time controller; an output end of the DC time controller is connected with an input end of a switching power supply circuit; an output end of the switching power supply circuit is connected with an LED short message receiver circuit, an LED display screen controller and an LED unit display panel; the LED short message receiver circuit is connected with an LED display screen controller circuit; and the LED display screen controller circuit is connected with an LED unit display panel circuit. By setting flexible startup time and shutdown time, the output startup or shutdown of the DC time controller is controlled so as to reduce the output current of the jars; and when the voltage of the jars is over-low, the output of the DC time controller is cut off, the power supply to a post-stage switching power supply is stopped, the output current of the jars is reduced, so that the jars are protected.

Description

The LED display electric power system that has DC time control function

Technical field

The present invention relates to a kind of DC time control function that possesses, also possess the LED display electric power system that has DC time control function of storage battery low-voltage variation function simultaneously.

Background technology

In the electric power system of the general LED ad display screen in market, because that the voltage in the LED control system adopts is direct current 5V, so often adopt following supply power mode in application: the power supply of alternating current 220V-50HZ is adopted in input as shown in Figure 1, and exchange time control is also supplied with the LED drive system through the power supply that the Switching Power Supply of a group or N group becomes direct current 5V and used.But under some special occasions, the service time and the condition of alternating current are restricted, and must adopt storage battery to power, under this application scenario, conventional power-supply system adopts the using method of Fig. 2, and this system mainly contains following characteristics: 1, the system applies assembling is more clear; 2, use fairly simple practicality; 3, can freely be provided with by exchanging time controller service time; 4, note receiver and LED display controller loop can be made on the control board, also can be made on two control boards, as Fig. 2-1 and 2-2 according to the function difference.But in this power-supply system, exist following shortcoming:

1, when AC-powered is untimely, storage battery can't be effectively protected, and cause the over-discharge can of storage battery probably, thereby cause the damage of storage battery;

2, inverter and exchange time controller are in running order always, will consume the storage battery electric current always, cause system works efficient to reduce.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art and provide a kind of and can prolong the storage battery LED display electric power system that has DC time control function in useful life.

The object of the present invention is achieved like this: comprise the charger that is connected with the alternating current 220V civil power, by the dc power supply circuit that is made of accumulator jar that both positive and negative polarity is connected with charger, it is characterized in that: dc power supply circuit is connected with the input port of direct current time controller; Direct current time controller output port is connected with Switching Power Supply loop input port; The output port in Switching Power Supply loop is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; LED note receiver loop is connected with LED display controller loop; LED display controller loop is connected with display panel loop, LED unit.

One of described direct current time controller comprises power supply treatment loop, order circuit, clock loop, CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The a different set of voltage in addition that electric power loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The delivery outlet of CPU treatment loop is connected with the input port of relay, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

Two of described direct current time controller comprises electric power loop, clock loop, order circuit, CPU treatment loop, triode loop, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port in triode loop simultaneously; The output port of power supply treatment loop is connected with the power port of order circuit, clock loop, CPU treatment loop; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of CPU treatment loop is connected with the input port in triode loop, controls the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Charger is connected with dc power supply circuit, and dc power supply circuit is connected with direct current time controller and storage battery low-voltage variation device, and the direct current time controller is combined with the Switching Power Supply loop with storage battery low-voltage variation device and is connected.

Described direct current time controller and storage battery low-voltage variation device are accomplished perhaps separately to accomplish on two control boards on the control board.

Described LED note receiver and LED display controller can be accomplished perhaps separately to accomplish on two control boards on the control board.

One of DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, clock loop, order circuit, CPU treatment loop, relay circuit and voltage acquisition circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit, the input port of voltage acquisition circuit simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

Two of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, order circuit, clock loop, CPU treatment loop, relay circuit, voltage comparison loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, is connected with the input of relay circuit, the input of voltage comparison loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power end of order circuit, clock loop, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop and connects, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage comparison loop is connected with the input port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

Three of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, clock loop, CPU treatment loop, triode loop, voltage acquisition circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port in triode loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; The delivery outlet of CPU treatment loop is connected with the control input port in triode loop, controls the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Four of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, clock loop, order circuit, CPU treatment loop, triode loop, voltage comparison loop, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port in triode loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage comparison loop is connected with the input port of CPU treatment loop; The delivery outlet of CPU treatment loop is connected with the control input port in triode loop, controls the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

When direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards, one of storage battery low-voltage variation device comprises power supply treatment loop, CPU treatment loop, relay circuit and voltage acquisition circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit, the input port of voltage acquisition circuit simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The output port of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay circuit, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

When direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards, two of storage battery low-voltage variation device comprises power supply treatment loop, CPU treatment loop, relay circuit, voltage comparison loop, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit, voltage comparison loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The output port of voltage comparison loop is connected with the input port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay circuit, comes the turn-on and turn-off in control relay loop, thus the opening and closing of control out-put supply.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 48V dc power supply circuit of being connected mutually and being constituted by 4 joint lead-acid accumulators, perhaps save the 36V dc power supply circuit that the DC12V lead-acid accumulators are connected mutually and constituted by 3, perhaps the 24V dc power supply circuit that is connected in parallel and is constituted by the lead-acid battery that 2 joint DC12V lead-acid accumulators are connected afterwards mutually and other 2 joint DC12V connect mutually perhaps saves the DC12V lead-acid accumulators 12V dc power supply circuit that constitutes parallel with one another by 4.

Direct current 5V Switching Power Supply loop is changeed for direct current 48V in described Switching Power Supply loop, perhaps for direct current 36V changes direct current 5V Switching Power Supply loop, perhaps for direct current 24V changes direct current 5V Switching Power Supply loop, perhaps changes direct current 5V Switching Power Supply loop fordirect current 12V.

Lead-acid accumulators of the present invention connects and composes DC power system by series and parallel, selects battery charger that storage battery is charged.The power supply of power-supply system is connected with DC time control storage battery low-voltage variation device, starts or closes by output that available machine time and unused time flexibly control the DC time control device is set, to reach the output current that reduces storage battery; By real-time detection storage battery is protected simultaneously,, cut off the output of DC time control device, stop power supply, reduce the output current of storage battery, thereby protected storage battery the Switching Power Supply of back level when finding that battery voltage crosses when low to battery voltage.

Description of drawings

Fig. 1 is conventional ac power supply system method of attachment schematic diagram.

Fig. 2-1 is produced on the method for attachment schematic diagram of a normal charge inversion system on the circuit board for note receiver and LED display controller loop.

Fig. 2-2 separately is produced on the charging inversion system method of attachment schematic diagram of routine on the circuit board for note receiver and LED display controller loop.

Fig. 3-1 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 48V and combines and become DC time control storage battery low-voltage variation device for of the present invention, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 3-2 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 48V and combines and become DC time control storage battery low-voltage variation device for of the present invention, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 3-3 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 48V and accomplishes separately on two control boards that note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously for of the present invention.

Fig. 3-4 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards for of the present invention by 48V, and note receiver and LED display controller loop separately are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 3-5 of the present inventionly changes 5V Switching Power Supply and direct current time controller by 48V, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 3-6 is of the present invention by 48V commentaries on classics 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 4-1 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 36V and combines and become DC time control storage battery low-voltage variation device for of the present invention, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 4-2 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 36V and combines and become DC time control storage battery low-voltage variation device for of the present invention, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 4-3 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards for of the present invention by 36V, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 4-4 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards for of the present invention by 36V, and note receiver and LED display controller loop separately are produced on the connection diagram of the circuit that is constituted on two circuit boards simultaneously.

Fig. 4-5 of the present inventionly changes 5V Switching Power Supply and direct current time controller by 36V, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 4-6 is of the present invention by 36V commentaries on classics 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 5-1 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 24V and combines and become DC time control storage battery low-voltage variation device for of the present invention, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 5-2 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 24V and combines and become DC time control storage battery low-voltage variation device for of the present invention, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 5-3 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards for of the present invention by 24V, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 5-4 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards for of the present invention by 24V, and note receiver and LED display controller loop separately are produced on the connection diagram of the institute's forming circuit on two circuit boards simultaneously.

Fig. 5-5 of the present inventionly changes 5V Switching Power Supply and direct current time controller by 24V, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 5-6 is of the present invention by 24V commentaries on classics 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 6-1 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 12V and combines and become DC time control storage battery low-voltage variation device for of the present invention, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 6-2 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 12V and combines and become DC time control storage battery low-voltage variation device for of the present invention, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

When being changeed direct current time controller that the 5V Switching Power Supply changes confession and storage battery low-voltage variation device and separately accomplished on two control boards by 12V, note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board to Fig. 6-3 simultaneously for of the present invention.

Fig. 6-4 changes 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards for of the present invention by 12V, and note receiver and LED display controller loop separately are produced on the connection diagram of the circuit that is constituted on two circuit boards simultaneously.

Fig. 6-5 of the present inventionly changes 5V Switching Power Supply and direct current time controller by 12V, simultaneously the connection diagram of note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted.

Fig. 6-6 is of the present invention by 12V commentaries on classics 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of the circuit that is constituted on the circuit board simultaneously.

Fig. 7 is the connection diagram of one of direct current time controller of the present invention.

Fig. 8 is two a connection diagram of direct current time controller of the present invention.

Fig. 9 is the connection diagram of being combined the circuit of one of DC time control low-voltage variation device of constituting by direct current time controller and storage battery low-voltage variation device of the present invention.

Figure 10 is two the circuit connection diagram of being combined the DC time control low-voltage variation device that constitutes by direct current time controller and storage battery low-voltage variation device of the present invention.

Figure 11 is three the circuit connection diagram of being combined the DC time control low-voltage variation device that constitutes by direct current time controller and storage battery low-voltage variation device of the present invention.

Figure 12 is four the circuit connection diagram of being combined the DC time control low-voltage variation device that constitutes by direct current time controller and storage battery low-voltage variation device of the present invention.

Figure 13 is the connection diagram of one of storage battery low-voltage variation device of the present invention.

Figure 14 is two a connection diagram of storage battery low-voltage variation device of the present invention.

Figure 15 is a switching power circuit connection diagram of the present invention.

Figure 16 is a clock circuit connection diagram of the present invention.

Figure 17 is a CPU treatment circuit connection diagram of the present invention.

Figure 18 is a relay circuit connection diagram of the present invention.

Figure 19 is a communicating circuit connection diagram of the present invention.

Figure 20 is a voltage collection circuit connection diagram of the present invention.

Figure 21 is a voltage comparator circuit connection diagram of the present invention.

Figure 22 is a transistor circuit connection diagram of the present invention.

Embodiment

According to different storage battery connected modes, and adopt the direct current time controller separately, the different connected modes when perhaps the direct current time controller being used in combination with storage battery low-voltage variation device mainly contain following execution mode:

Embodiment 1: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 48V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 3-1, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 48V and combine and become the example that DC time control storage battery low-voltage variation device is constituted; note receiver and LED display controller loop separately are produced on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device, the direct current time controller is combined with direct current 48V commentaries on classics direct current 5V Switching Power Supply loop input with storage battery low-voltage variation device and is connected, direct current 48V changes direct current 5V Switching Power Supply loop output and is connected with loop, display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects, LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit; Described note receiver and LED display controller loop separately are produced on two circuit boards.

As shown in Figure 9; direct current time controller and storage battery low-voltage variation device are accomplished on the control board; the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; clock loop; order circuit; the CPU treatment loop; relay circuit and voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; simultaneously with the input of relay circuit; the input of voltage acquisition circuit is connected; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power port of CPU treatment loop is connected; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 2: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 48V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 3-2, note receiver and LED display controller loop are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 48V and combine example when becoming DC time control storage battery low-voltage variation device; note receiver and LED display controller loop are produced on the circuit board simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function; comprise the charger that is connected with the alternating current 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device; the direct current time controller is combined with direct current 48V commentaries on classics direct current 5V Switching Power Supply loop input with storage battery low-voltage variation device and is connected; direct current 48V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit; LED note receiver loop connects; LED display controller loop connects, and described note receiver is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

As shown in figure 10, direct current time controller and storage battery low-voltage variation device are accomplished on the control board, the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute, and circuit connecting relation is as follows:

Two of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; order circuit; clock loop; the CPU treatment loop; relay circuit; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; be connected with the input of relay circuit simultaneously; the input of voltage comparison loop connects; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power port of CPU treatment loop is connected; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop and connects; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage comparison loop is connected with the input of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 3: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing two control boards on for of the present invention by direct current 48V referring to Fig. 3-3, note receiver and LED display controller loop are produced on the connection diagram of the institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards by direct current 48V; note receiver and LED display controller loop are produced on the example of the institute's forming circuit on the circuit board simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function, the dc power supply circuit that constitutes by accumulator jar that comprises the charger that is connected with the alternating current 220V civil power, is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output is connected with storage battery low-voltage variation device input, and the output of storage battery low-voltage variation device is connected with the input that direct current 48V changes direct current 5V Switching Power Supply loop; Direct current 48V commentaries on classics direct current 5V Switching Power Supply loop output is connected with loop, display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects, and described note receiver is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

As shown in figure 13; one of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit and voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; simultaneously with the input of relay circuit; the input of voltage acquisition circuit connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay circuit; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 4: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing two control boards on for of the present invention by direct current 48V referring to Fig. 3-4, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on two circuit boards simultaneously.

Present embodiment is the present invention changes direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards by direct current 48V; note receiver and LED display controller loop are produced on the example of institute's forming circuit on two circuit boards simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function, the dc power supply circuit that constitutes by accumulator jar that comprises the charger that is connected with the alternating current 220V civil power, is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output is connected with storage battery low-voltage variation device input, and storage battery low-voltage variation device output changes direct current 5V Switching Power Supply loop input with direct current 48V and is connected; Direct current 48V commentaries on classics direct current 5V Switching Power Supply loop output is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop is connected, LED note receiver loop is connected with the LED display loop, and LED display controller loop is connected with display panel loop, LED unit.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

As shown in figure 14; when direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards; two of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; while and relay circuit; the input of voltage comparison loop connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage comparison loop is connected with the input of CPU treatment loop; the output of CPU treatment loop is connected with the control input port of relay circuit; come the turn-on and turn-off in control relay loop, thus the opening and closing of control out-put supply.

Embodiment 5: referring to Fig. 3-5 is of the present invention by direct current 48V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present invention by direct current 48V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the example of institute's forming circuit on two circuit boards simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output changes direct current 5V Switching Power Supply loop input with direct current 48V and is connected, direct current 48V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop is connected, LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit.

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

Embodiment 6: referring to Fig. 3-6 is of the present invention by direct current 48V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of a circuit that circuit board constituted simultaneously.

Present embodiment is of the present invention by direct current 48V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver loop and LED display controller loop are produced on the example of institute's forming circuit on the circuit board simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output is connected with the input that direct current 48V changes direct current 5V Switching Power Supply loop, the output that direct current 48V changes direct current 5V Switching Power Supply loop is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop is connected, and described note receiver is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Among the above embodiment 1-6, the described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 48V dc power supply circuit of being connected mutually and being constituted by 4 joint lead-acid accumulators.Direct current 5V Switching Power Supply loop is changeed for direct current 48V in described Switching Power Supply loop.

Embodiment 7: change 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by 36V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 4-1, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 36V and combine example when becoming DC time control storage battery low-voltage variation device; note receiver and the LED display controller loop circuit that separately is produced on the circuit board to be constituted simultaneously, specific as follows:

A kind of LED screen electric power system that has DC time control function; comprise the charger that is connected with the alternating current 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device; the direct current time controller is combined with the input in direct current 36V commentaries on classics direct current 5V Switching Power Supply loop with storage battery low-voltage variation device and is connected; the output that direct current 36V changes direct current 5V Switching Power Supply loop is connected with display panel loop, LED unit; LED note receiver loop connects; LED display controller loop is connected; LED note receiver loop is connected with LED display controller loop; LED display controller loop is connected with display panel loop, LED unit, and described note receiver and LED display controller loop separately are produced on two circuit boards.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 36V dc power supply circuit of being connected mutually and being constituted by 3 joint DC12V lead-acid accumulators, and direct current 5V Switching Power Supply loop is changeed for direct current 36V in described Switching Power Supply loop.

As shown in figure 11; direct current time controller and storage battery low-voltage variation device are accomplished on the control board; three of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; clock loop; the CPU treatment loop; the triode loop; voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; be connected with the input in triode loop simultaneously; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power end of CPU treatment loop connects; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port in triode loop; control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Embodiment 8: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 36V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 4-2, note receiver and LED display controller loop are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 36V and combine and become DC time control storage battery low-voltage variation device; note receiver and LED display controller loop are produced on the example of institute's forming circuit on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function; comprise the charger that is connected with the 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device; the direct current time controller is combined with direct current 36V commentaries on classics direct current 5V Switching Power Supply loop input with storage battery low-voltage variation device and is connected, and direct current 36V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit; LED display controller loop connects; LED note receiver loop is connected.Described note receiver loop is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 36V dc power supply circuit of being connected mutually and being constituted by 3 joint DC12V lead-acid accumulators, and direct current 5V Switching Power Supply loop is changeed for direct current 36V in described Switching Power Supply loop.

As shown in figure 12, direct current time controller and storage battery low-voltage variation device are accomplished on the control board, the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute, and circuit connecting relation is as follows:

Four of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; clock loop; order circuit; the CPU treatment loop; the triode loop; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; be connected with the input in triode loop simultaneously; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power end of CPU treatment loop connects; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage comparison loop is connected with the input of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port in triode loop; control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Embodiment 9: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing two control boards on for of the present invention by direct current 36V referring to Fig. 4-3, note receiver loop and LED display controller loop are produced on a circuit connection diagram on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards by direct current 36V; note receiver and LED display controller loop are produced on the example of institute's forming circuit on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function; comprise the charger that is connected with the alternating current 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller; direct current time controller output is connected with storage battery low-voltage variation device input; storage battery low-voltage variation device output changes direct current 5V Switching Power Supply loop input with direct current 36V and is connected; direct current 36V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit; LED note receiver loop connects; LED display controller loop is connected, and described note receiver loop is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 36V dc power supply circuit of being connected mutually and being constituted by 3 joint DC12V lead-acid accumulators, and direct current 5V Switching Power Supply loop is changeed for direct current 36V in described Switching Power Supply loop.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

As shown in figure 13; one of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit and voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; simultaneously with the input of relay circuit; the input of voltage acquisition circuit connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay circuit; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 10: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing two control boards on for of the present invention by direct current 36V referring to Fig. 4-4, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on two circuit boards simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards by direct current 36V; note receiver and LED display controller loop are produced on two examples on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function; comprise the charger that is connected with the alternating current 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller; the direct current time controller is connected with storage battery low-voltage variation device; storage battery low-voltage variation device changes direct current 5V Switching Power Supply loop input with direct current 36V and is connected, and direct current 36V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit; LED note receiver loop connects; LED display controller loop connects.LED note receiver loop is connected with LED display controller loop; LED display controller loop is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 36V dc power supply circuit of being connected mutually and being constituted by 3 joint DC12V lead-acid accumulators, and direct current 5V Switching Power Supply loop is changeed for direct current 36V in described Switching Power Supply loop.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

As shown in figure 14; when direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards; two of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; while and relay circuit; the input of voltage comparison loop connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage comparison loop is connected with the input of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay circuit; come the turn-on and turn-off in control relay loop, thus the opening and closing of control out-put supply.

Embodiment 11: referring to Fig. 4-5 is of the present invention by direct current 36V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present invention by direct current 36V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on two examples on the circuit board simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output changes direct current 5V Switching Power Supply loop input with direct current 36V and is connected, and direct current 36V changes direct current 5V Switching Power Supply loop output and is connected with LED note receiver loop, LED display controller loop connects, display panel loop, LED unit is connected.LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with LED display unit display panel.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 36V dc power supply circuit of being connected mutually and being constituted by 3 joint DC12V lead-acid accumulators, and direct current 5V Switching Power Supply loop is changeed for direct current 36V in described Switching Power Supply loop.

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

Embodiment 12: referring to Fig. 4-6 is of the present invention by direct current 36V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present invention by direct current 36V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the example of institute's forming circuit on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output changes direct current 5V Switching Power Supply loop input with direct current 36V and is connected, direct current 36V changes direct current 5V Switching Power Supply loop output and is connected with LED note receiver loop, LED display controller loop connects, display panel loop, LED unit is connected, and described note receiver loop is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 36V dc power supply circuit of being connected mutually and being constituted by 3 joint DC12V lead-acid accumulators, and direct current 5V Switching Power Supply loop is changeed for direct current 36V in described Switching Power Supply loop.

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Embodiment 13: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 24V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 5-1, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 24V and combine example when becoming DC time control storage battery low-voltage variation device; note receiver and LED display controller loop separately are produced on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device, the direct current time controller is combined with direct current 24V commentaries on classics direct current 5V Switching Power Supply loop input with storage battery low-voltage variation device and is connected, direct current 24V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop is connected, LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit; Described note receiver and LED display controller loop separately are produced on two circuit boards.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that described Switching Power Supply loop is for being direct current 24V commentaries on classics direct current 5V Switching Power Supply loop by the 2 joint DC12V lead-acid accumulators 24V dc power supply circuit that back and lead-acid battery that other 2 joint DC12V connect mutually be connected in parallel and constitute of connecting mutually.

As shown in Figure 9; direct current time controller and storage battery low-voltage variation device are accomplished on the control board; the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; clock loop; order circuit; the CPU treatment loop; relay circuit and voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; simultaneously with the input of relay circuit; the input of voltage acquisition circuit is connected; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power end of CPU treatment loop is connected; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 14: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 24V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 5-2, note receiver and LED display controller loop are produced on a circuit connection diagram on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 24V and combine example when becoming DC time control storage battery low-voltage variation device; note receiver and LED display controller loop are produced on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function; comprise the charger that is connected with the alternating current 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device; the direct current time controller is combined with direct current 24V commentaries on classics direct current 5V Switching Power Supply loop input with storage battery low-voltage variation device and is connected, and the output that direct current 24V changes direct current 5V Switching Power Supply loop is connected with display panel loop, LED unit; LED note receiver loop connects; LED display controller loop is connected.Described note receiver is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that described Switching Power Supply loop is for being direct current 24V commentaries on classics direct current 5V Switching Power Supply loop by the 2 joint DC12V lead-acid accumulators 24V dc power supply circuit that back and lead-acid battery that other 2 joint DC12V connect mutually be connected in parallel and constitute of connecting mutually.

As shown in figure 10, direct current time controller and storage battery low-voltage variation device are accomplished on the control board, the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute, and circuit connecting relation is as follows:

Two of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; order circuit; clock loop; the CPU treatment loop; relay circuit; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; simultaneously with the input of relay circuit; the input of voltage comparison loop is connected; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power end of CPU treatment loop is connected; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop and connects; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage comparison loop is connected with the input of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 15: for of the present invention when being changeed direct current time controller that direct current 5V Switching Power Supply changes confession and storage battery low-voltage variation device and separately accomplished on two control boards by direct current 24V, note receiver and LED display controller loop are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously referring to Fig. 5-3.

Present embodiment is that direct current 24V of the present invention changes that direct current 5V Switching Power Supply is changeed and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards; note receiver and LED display controller loop are produced on an example on the circuit board simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function; comprise the charger that is connected with the alternating current 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller; direct current time controller output is connected with storage battery low-voltage variation device input; storage battery low-voltage variation device output changes direct current 5V Switching Power Supply loop input with direct current 24V and is connected, and direct current 24V changes direct current 5V Switching Power Supply loop and is connected with display panel loop, LED unit; LED note receiver loop connects; LED display controller loop connects.Described note receiver is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that described Switching Power Supply loop is for being direct current 24V commentaries on classics direct current 5V Switching Power Supply loop by the 2 joint DC12V lead-acid accumulators 24V dc power supply circuit that back and lead-acid battery that other 2 joint DC12V connect mutually be connected in parallel and constitute of connecting mutually.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

As shown in figure 13; one of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit and voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; simultaneously with the input of relay circuit; the input of voltage acquisition circuit connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay circuit; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 16: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing two control boards on for of the present invention by direct current 24V referring to Fig. 5-4, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on two circuit boards simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards by direct current 24V; note receiver and LED display controller loop are produced on two examples on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, the dc power supply circuit that constitutes by accumulator jar that comprises the charger that is connected with the alternating current 220V civil power, is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output is connected with storage battery low-voltage variation device, and the output of storage battery low-voltage variation device changes direct current 5V Switching Power Supply loop with direct current 24V and is connected; Direct current 24V commentaries on classics direct current 5V Switching Power Supply loop output is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects.LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

As shown in figure 14; when direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards; two of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; while and relay circuit; the input of voltage comparison loop connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage comparison loop is connected with the input of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay circuit; come the turn-on and turn-off in control relay loop, thus the opening and closing of control out-put supply.

Embodiment 17: referring to Fig. 5-5 is of the present invention by direct current 24V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop separately are produced on the connection diagram of the institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present invention by direct current 24V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver loop and LED display controller loop are produced on two examples on the circuit board simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output changes direct current 5V Switching Power Supply loop input with direct current 24V and is connected, and direct current 24V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that described Switching Power Supply loop is for being direct current 24V commentaries on classics direct current 5V Switching Power Supply loop by the 2 joint DC12V lead-acid accumulators 24V dc power supply circuit that back and lead-acid battery that other 2 joint DC12V connect mutually be connected in parallel and constitute of connecting mutually.

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

Embodiment 18: referring to Fig. 5-6 is of the present invention by direct current 24V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of the institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present invention by direct current 24V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver loop and LED display controller loop are produced on an example on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output changes direct current 5V Switching Power Supply loop input with direct current 24V and is connected, and direct current 24V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; Described note receiver is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that described Switching Power Supply loop is for being direct current 24V commentaries on classics direct current 5V Switching Power Supply loop by the 2 joint DC12V lead-acid accumulators 24V dc power supply circuit that back and lead-acid battery that other 2 joint DC12V connect mutually be connected in parallel and constitute of connecting mutually.

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Embodiment 19: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 12V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 6-1, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 12V and combine example when becoming DC time control storage battery low-voltage variation device; note receiver and LED display controller loop separately are produced on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device, the direct current time controller is combined with direct current 12V commentaries on classics direct current 5V Switching Power Supply loop input with storage battery low-voltage variation device and is connected, and direct current 12V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit; Described note receiver loop and LED display controller loop separately are produced on two circuit boards.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that by the 4 joint DC12V lead-acid accumulators 12V dc power supply circuit that constitutes parallel with one another direct current 5V Switching Power Supply loop is changeed for direct current 12V in described Switching Power Supply loop.

As shown in figure 11; direct current time controller and storage battery low-voltage variation device are accomplished on the control board; three of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; clock loop; the CPU treatment loop; the triode loop; voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; be connected with the input in triode loop simultaneously; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power end of CPU treatment loop connects; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage acquisition circuit is connected the CPU treatment loop with the AD conversion port of CPU treatment loop delivery outlet is connected with the control input port in triode loop; control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Embodiment 20: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device by direct current 12V and combine and become DC time control storage battery low-voltage variation device for of the present invention referring to Fig. 6-2, note receiver and LED display controller loop are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is that direct current 12V of the present invention changes direct current time controller that direct current 5V Switching Power Supply changes confession and storage battery low-voltage variation device and combines example when becoming DC time control storage battery low-voltage variation device; note receiver and LED display controller loop are produced on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function; comprise the charger that is connected with the alternating current 220V civil power; the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity; it is characterized in that: on the output port of charger and dc power supply circuit, be connected with direct current time controller and storage battery low-voltage variation device; the direct current time controller is combined with direct current 12V commentaries on classics direct current 5V Switching Power Supply loop input with storage battery low-voltage variation device and is connected, and direct current 12V changes direct current 5V Switching Power Supply loop output and is connected with display panel loop, LED unit; LED note receiver loop connects; LED display controller loop is connected.Described note receiver is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 12V dc power supply circuit of being connected mutually and being constituted by 4 joint DC12V lead-acid accumulators, and direct current 5V Switching Power Supply loop is changeed for direct current 12V in described Switching Power Supply loop.

As shown in figure 12, direct current time controller and storage battery low-voltage variation device are accomplished on the control board, the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute, and circuit connecting relation is as follows:

Four of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises the power supply treatment loop; clock loop; order circuit; the CPU treatment loop; the triode loop; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; be connected with the input in triode loop simultaneously; export and order circuit for one group of power supply treatment loop generation voltage; clock loop; the power end of CPU treatment loop connects; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the input/output port of clock loop is connected with the input/output port of CPU treatment loop; the CPU treatment loop is by the operation to clock loop; come the acquisition time; the output of voltage comparison loop is connected with the input of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port in triode loop; control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Embodiment 21: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing two control boards on for of the present invention by direct current 12V referring to Fig. 6-3, note receiver and LED display controller loop are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards by direct current 12V; note receiver and LED display controller loop are produced on an example on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, the dc power supply circuit that constitutes by accumulator jar that comprises the charger that is connected with the alternating current 220V civil power, is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output is connected with storage battery low-voltage variation device, and the output of storage battery low-voltage variation device changes direct current 5V Switching Power Supply loop input with direct current 12V and is connected; Direct current 12V commentaries on classics direct current 5V Switching Power Supply loop output is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; Described note receiver loop is produced on the circuit board with LED display controller loop and then is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that by the 4 joint DC12V lead-acid accumulators 12V dc power supply circuit that constitutes parallel with one another direct current 5V Switching Power Supply loop is changeed for direct current 12V in described Switching Power Supply loop.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

As shown in figure 13; one of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit and voltage acquisition circuit; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; simultaneously with the input of relay circuit; the input of voltage acquisition circuit connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay circuit; come the logical of control relay loop; disconnected, thus the opening and closing of control out-put supply.

Embodiment 21: change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing two control boards on for of the present invention by direct current 12V referring to Fig. 6-4, note receiver and LED display controller loop separately are produced on the connection diagram of institute's forming circuit on two circuit boards simultaneously.

Present embodiment is of the present inventionly to change direct current 5V Switching Power Supply and direct current time controller and storage battery low-voltage variation device when separately accomplishing on two control boards by direct current 12V; note receiver and LED display controller loop are produced on two examples on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, the dc power supply circuit that constitutes by accumulator jar that comprises the charger that is connected with the alternating current 220V civil power, is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output is connected with storage battery low-voltage variation device input, and storage battery low-voltage variation device output changes direct current 5V Switching Power Supply loop input with direct current 12V and is connected; Direct current 12V commentaries on classics direct current 5V Switching Power Supply loop output is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects.LED note receiver loop is connected with LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that by the 4 joint DC12V lead-acid accumulators 12V dc power supply circuit that constitutes parallel with one another direct current 5V Switching Power Supply loop is changeed for direct current 12V in described Switching Power Supply loop.

When direct current time controller and storage battery low-voltage variation device were separately accomplished on two control boards, the circuit connecting relation of direct current time controller and storage battery low-voltage variation device was as follows:

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

As shown in figure 14; when direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards; two of storage battery low-voltage variation device comprises the power supply treatment loop; the CPU treatment loop; relay circuit; the voltage comparison loop; concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop; while and relay circuit; the input of voltage comparison loop connects; export and order circuit for one group of power supply treatment loop generation voltage; the power end of CPU treatment loop connects; the a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; the input/output port of order circuit is connected with the input/output port of CPU treatment loop; realize the exchange between the data; finish the human interface function; the output of voltage comparison loop is connected with the input of CPU treatment loop; the delivery outlet of CPU treatment loop is connected with the control input port of relay circuit; come the turn-on and turn-off in control relay loop, thus the opening and closing of control out-put supply.

Embodiment 22: referring to Fig. 6-5 is of the present invention by direct current 12V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop separately are produced on the circuit connection diagram on the circuit board simultaneously.

Present embodiment is of the present invention by direct current 12V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver loop and LED display controller loop are produced on two examples on the circuit board simultaneously, and be specific as follows:

A kind of LED screen charging system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output is connected with the input that direct current 12V changes direct current 5V Switching Power Supply loop, and direct current 12V changes direct current 5V Switching Power Supply loop output and loop, display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; LED note receiver loop is connected with the LED display loop, and the LED display loop is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that by the 4 joint DC12V lead-acid accumulators 12V dc power supply circuit that constitutes parallel with one another direct current 5V Switching Power Supply loop is changeed for direct current 12V in described Switching Power Supply loop.

As shown in Figure 7, one of described direct current time controller comprises the power supply treatment loop, order circuit, clock loop, the CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input of relay circuit simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop is connected, the a different set of voltage in addition that electric power loop produces is connected with relay circuit, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port of relay, come the logical of control relay loop, disconnected, thus the opening and closing of control out-put supply.

Embodiment 23: referring to Fig. 6-6 is of the present invention by direct current 12V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on the connection diagram of institute's forming circuit on the circuit board simultaneously.

Present embodiment is of the present invention by direct current 12V commentaries on classics direct current 5V Switching Power Supply and direct current time controller, and note receiver and LED display controller loop are produced on an example on the circuit board simultaneously, and be specific as follows:

A kind of LED screen electric power system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, the dc power supply circuit that constitutes by accumulator jar that is connected with charger by both positive and negative polarity, it is characterized in that: on the output port of charger and dc power supply circuit, be connected with the direct current time controller, direct current time controller output changes direct current 5V Switching Power Supply loop input with direct current 12V and is connected, and direct current 12V changes direct current 5V Switching Power Supply output and is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; LED note receiver loop is connected with loop, LED display controller loop, and LED display controller loop is connected with display panel loop, LED unit.

The described dc power supply circuit that is made of accumulator jar that is connected with charger is meant that by the 4 joint DC12V lead-acid accumulators 12V dc power supply circuit that constitutes parallel with one another direct current 5V Switching Power Supply loop is changeed for direct current 12V in described Switching Power Supply loop.

As shown in Figure 8, two of described direct current time controller comprises electric power loop, clock loop, the CPU treatment loop, the triode loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, be connected with the input in triode loop simultaneously, export and order circuit for one group of power supply treatment loop generation voltage, clock loop, the power end of CPU treatment loop connects, the input/output port of order circuit is connected with the input/output port of CPU treatment loop, realize the exchange between the data, finish the human interface function, the input/output port of clock loop is connected with the input/output port of CPU treatment loop, the CPU treatment loop is by the operation to clock loop, come the acquisition time, the delivery outlet of CPU treatment loop is connected with the input port in triode loop, control the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

Related in the above-described embodiments partial circuit annexation is as follows:

As shown in figure 15, in switching power circuit, positive source is connected with diode D1 by 2 pin of terminal J1, D1 is the diode that prevents the power supply reversal connection, 1 pin of J1 is the 0V of input power supply, the other end of diode D1 is connected with 4 pin of relay J DQ1, be connected with diode D8 simultaneously, the other end of diode D8 is connected with electrochemical capacitor C2, simultaneously with capacitor C 3,1 pin of transition diode DW and high frequency transformer B connects, the other end of C2 is connected on the 0V of input power supply, capacitor C 3, the other end of transition diode DW is connected with diode D5,5 of 2 pin of the other end of D5 and high frequency transformer B and Switching Power Supply integrated circuit U1,6,7,8 pin connect, photoelectrical coupler U2 is by A, B two parts are formed, 4 pin of high frequency transformer B are connected with diode D6, the other end of diode D6 and electrochemical capacitor C5,4 pin of Switching Power Supply integrated circuit U1,4 pin of photoelectrical coupler U2B connect, on the other end of electrochemical capacitor C5 and the 0V that receives the input power supply after the end of electric capacity of the dacron C4 is connected, the other end of capacitor C 4 with receive on 3 pin of element switch power IC U1 after 3 pin of element U2B are connected, 1 of Switching Power Supply integrated circuit U1,2 pin are connected on the 0V of input power supply, ceramic disc capacitor C81 one end is connected with 0V, the other end is connected with the end of C82, the other end of C82 is connected with the 0V of output, 5 pin of high frequency transformer B are connected with diode D7, the other end of D7 and electrolytic capacitor filter C7, filter inductance L2, resistance R 2 is connected with R3, the other end of electrolytic capacitor filter C7 is received the 0V of power supply, the other end of resistance R 2 is connected with 1 pin of photoelectrical coupler U2A, 2 pin of photoelectrical coupler U2A are connected with the other end of resistance R 3 simultaneously and link to each other with capacitor C 8 with the K end of reference voltage integrated circuit U3, after linking to each other with the other end of capacitor C 8, the V end of reference voltage integrated circuit U3 links to each other with resistance R 4, constitute voltage comparator circuit, the A of reference voltage integrated circuit U3 terminates to the 0V of power supply, the other end of filter inductance L2 and resistance R 5, electrochemical capacitor C9 goes 1 pin of lotus root capacitor C 6 three terminal regulators to connect, element U204 is general three terminal regulator, is output as DC5V.3 pin of U204 are connected with C207, C208, and the other end of C207 and C208 is connected with the 0V of power supply

As shown in figure 16, in clock circuit, adopt between clock chip and the CPU and carry out exchanges data, thereby finish time control function, in clock circuit, adopt the high precision clock chip DS1302 of MAXIM company, 5 of clock chip U5,6,7 pin respectively with pull-up resistor R8, R7, R6 connects, and with 27 of the single-chip microcomputer U4 of 68HC908JL8ECDW model, 26,25 pin connect the time of reading clock chip DS1302, judge the switching on and shutting down time,resistance R 6, R7, R8 is connected to+5V on,reserve battery B 1 is connected with 8 pin of clock chip U5, the other end ofreserve battery B 1 is received on the 0V of power supply, crystal oscillator J2 is connected with crystal oscillator matching capacitance C11 with 2 pin of clock chip U5, the other end of C11 is received on the 0V of power supply, the other end of crystal oscillator J2 is connected with crystal oscillator matching capacitance C12, and the other end of crystal oscillator matching capacitance C12 is connected on the 0V of power supply.

As shown in figure 17, in the CPU treatment circuit, U4 is a single-chip microcomputer, adopthigh performance 8 the single-chip microcomputer 68HC908JL8ECDW of MOTOROLA, single-chip microcomputer U4 pin two 7,26,25 respectively withclock chip U5 5,6,7 pin be connected, when with relay circuit, single-chip microcomputer U4 pin two 1 is connected withresistance R 12, the R13 of relay circuit, comes the opening and closing of control relay circuit; When being connected with the triode loop, single-chip microcomputer U4 pin two 1 is connected with resistance R 30; When being connected with voltage acquisition circuit, to the input voltage signal ADV real-time sampling and convert; When being connected, the level variation of input signal ADV is judged with the voltage comparison loop.。

As shown in figure 18, in relay circuit, load is connected on the terminal J4, element D2 is anti-reverse diode,resistance R 12,resistance R 13 are connected with the pin two 1 of single-chip microcomputer U4, another termination power 0V ofresistance R 12,resistance R 13 is connected with the base stage of triode Q1, the collector electrode of triode Q1 is connected with 1 pin of relay J DQ1A, the emitter of triode Q1 meets power supply 0V, diode D4 is in parallel with 1 pin and 2 pin of relay, energising and outage that single-chip microcomputer U4 comes the control relay coil by the high level and the low level of control CTR1 signal.

As shown in figure 19, in communicating circuit, 1 of 485 communication chip U6,2,13 of 4 pin and single-chip microcomputer U4,16,14 pin connect, 2 of 485 communication chip U6,3 pin connect, 5 pin of 485 communication chip U6 meet the 0V of power supply, 485 communication chips, 8 pin connect+5V, 7 pin of 485 communication chip U6 andresistance R 15, R17, transition diode T2, transition diode T3,2 pin of terminal J3 connect, 6 pin of 485 communication chip U6 andresistance R 16 and R17, transition diode T1, the transition diode T2 other end, 3 pin of terminal J3 connect, the other end of R16 is received+5V, the other end of transition diode T1 is received on the 0V of power supply, the other end of transition diode T3 is received on the 0V of power supply, 1 pin of terminal J3 is connected to+5V on, 4 pin of terminal J3 are connected on the 0V of power supply, 2 pin of terminal J3 are connected withresistance R 17, and 3 pin of terminal J3 link to each other with the other end of R17, transition diode T1, T2, T3 adopts the high speed transient diode.

As shown in figure 20, in voltage collection circuit, input voltage signal IN, R18 is connected with divider resistance, the other end of R18 is connected with R19, the other end of R19 is connected with filter capacitor C13 withresistance R 20, receives on the 0V of power supply after the other end parallel connection ofresistance R 20 and filter capacitor C13, and the voltage signal ADV of collection is connected with 15 pin of single-chip microcomputer U4 in the cpu circuit.

As shown in figure 21, in the voltage comparison loop, input voltage signal IN is connected with R31, the other end of R31 is connected with 2 pin of resistance R 33, U30A, the other end of R33 is connected with the 0V of power supply, 3 pin of U30A are connected with resistance R 30, R32, and the other end of resistance R 30 is connected with+5V, and the other end of resistance R 32 is connected with the 0V of power supply.4 pin of U30A are connected with the 0V of power supply, and 8 pin of U30A are connected with+5V.1 pin of U30A is connected withresistance R 34, and 15 pin of while with the U4 in CPU loop are connected.The other end of resistance R 34 is connected with+5V.

As shown in figure 22, in the triode loop, in the triode loop, the control signal CTR1 of single-chip microcomputer U4 is connected with resistance R 30, the other end of R30 is connected with the base stage of triode Q31, the emitter of triode Q31 is connected with the 0V of power supply, the collector electrode of triode Q31 and resistance R 32, R33 connects, the other end of resistance R 32 is connected the back and is connected with input voltage IN with the emitter of triode Q32, the other end of resistance R 33 is connected with the base stage of triode, the collector electrode of triode Q32 and light-emitting diode D3,1 pin of terminal J4 connects, and the other end of D3 is connected withresistance R 1, and the other end of R1 is connected the back and is connected with the 0V of power supply with 2 pin of terminal J4.

Claims (22)

1. LED display electric power system that has DC time control function, comprise the charger that is connected with the alternating current 220V civil power, by the dc power supply circuit that constitutes by accumulator jar that both positive and negative polarity is connected with charger, it is characterized in that: dc power supply circuit is connected with the input port of direct current time controller; Direct current time controller output port is connected with Switching Power Supply loop input port; The output port in Switching Power Supply loop is connected with display panel loop, LED unit, LED note receiver loop connects, LED display controller loop connects; LED note receiver loop is connected with LED display controller loop; LED display controller loop is connected with display panel loop, LED unit.

2. the LED display electric power system that has DC time control function according to claim 1 is characterized in that: LED note receiver and LED display controller are made on the control board, perhaps separately are made on two control boards.

3. the LED display electric power system that has DC time control function according to claim 1, it is characterized in that: one of described direct current time controller comprises power supply treatment loop, order circuit, clock loop, CPU treatment loop, relay circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The a different set of voltage in addition that electric power loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The delivery outlet of CPU treatment loop is connected with the input port of relay, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

4. the LED display electric power system that has DC time control function according to claim 1, it is characterized in that: two of described direct current time controller comprises electric power loop, clock loop, order circuit, CPU treatment loop, triode loop, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port in triode loop simultaneously; The output port of power supply treatment loop is connected with the power port of order circuit, clock loop, CPU treatment loop; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of CPU treatment loop is connected with the input port in triode loop, controls the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

5. the LED display electric power system that has DC time control function according to claim 1 is characterized in that: dc power supply circuit is connected with storage battery low-voltage variation device with the direct current time controller simultaneously; The direct current time controller is combined with Switching Power Supply loop input port with storage battery low-voltage variation device and is connected.

6. the LED display electric power system that has DC time control function according to claim 4 is characterized in that: described direct current time controller and storage battery low-voltage variation device are accomplished perhaps separately to accomplish on two control boards on the control board.

7. the LED display electric power system that has DC time control function according to claim 4, it is characterized in that: one of DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, clock loop, order circuit, CPU treatment loop, relay circuit and voltage acquisition circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit, the input port of voltage acquisition circuit simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

8. the LED display electric power system that has DC time control function according to claim 4, it is characterized in that: two of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, order circuit, clock loop, CPU treatment loop, relay circuit, voltage comparison loop, concrete annexation is as follows: the input power supply is connected with the input of power supply treatment loop, is connected with the input of relay circuit, the input of voltage comparison loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power end of order circuit, clock loop, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop and connects, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage comparison loop is connected with the input port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

9. the LED display electric power system that has DC time control function according to claim 4, it is characterized in that: three of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, clock loop, CPU treatment loop, triode loop, voltage acquisition circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port in triode loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; The delivery outlet of CPU treatment loop is connected with the control input port in triode loop, controls the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

10. the LED display electric power system that has DC time control function according to claim 4, it is characterized in that: four of the DC time control low-voltage variation device that direct current time controller of combining and storage battery low-voltage variation device constitute comprises power supply treatment loop, clock loop, order circuit, CPU treatment loop, triode loop, voltage comparison loop, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port in triode loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, clock loop, CPU treatment loop; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The input/output port of clock loop is connected with the input/output port of CPU treatment loop, and the CPU treatment loop comes the acquisition time by the operation to clock loop; The output port of voltage comparison loop is connected with the input port of CPU treatment loop; The delivery outlet of CPU treatment loop is connected with the control input port in triode loop, controls the turn-on and turn-off in triode loop, thus the opening and closing of control out-put supply.

11. the LED display electric power system that has DC time control function according to claim 5, it is characterized in that: when direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards, one of storage battery low-voltage variation device comprises power supply treatment loop, CPU treatment loop, relay circuit and voltage acquisition circuit, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit, the input port of voltage acquisition circuit simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The output port of voltage acquisition circuit is connected with the AD conversion port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay circuit, comes the switching in control relay loop, thus the opening and closing of control out-put supply.

12. the LED display electric power system that has DC time control function according to claim 5, it is characterized in that: when direct current time controller and storage battery low-voltage variation device are separately accomplished on two control boards, two of storage battery low-voltage variation device comprises power supply treatment loop, CPU treatment loop, relay circuit, voltage comparison loop, concrete annexation is as follows: the input power supply is connected with the input port of power supply treatment loop, is connected with the input port of relay circuit, voltage comparison loop simultaneously; One group of output that the power supply treatment loop produces voltage is connected with the power port of order circuit, CPU treatment loop; The a different set of voltage in addition that the power supply treatment loop produces is connected with relay circuit; The input/output port of order circuit is connected with the input/output port of CPU treatment loop, realizes the exchange between the data, finishes the human interface function; The output port of voltage comparison loop is connected with the input port of CPU treatment loop; The output port of CPU treatment loop is connected with the control input end mouth of relay circuit, comes the turn-on and turn-off in control relay loop, thus the opening and closing of control out-put supply.

13. the LED display electric power system that has DC time control function according to claim 1, it is characterized in that: the described dc power supply circuit that is made of accumulator jar that is connected with charger is meant the 48V dc power supply circuit of being connected mutually and being constituted by 4 joint lead-acid accumulators, perhaps save the 36V dc power supply circuit that the DC12V lead-acid accumulators are connected mutually and constituted by 3, perhaps the 24V dc power supply circuit that is connected in parallel and is constituted by the lead-acid battery that 2 joint DC12V lead-acid accumulators are connected afterwards mutually and other 2 joint DC12V connect mutually perhaps saves the DC12V lead-acid accumulators 12V dc power supply circuit that constitutes parallel with one another by 4.

14. the LED display electric power system that has DC time control function according to claim 1, it is characterized in that: direct current 5V Switching Power Supply loop is changeed for direct current 48V in described Switching Power Supply loop, perhaps change direct current 5V Switching Power Supply loop for direct current 36V, perhaps, perhaps change direct current 5V Switching Power Supply loop for direct current 12V for direct current 24V changes direct current 5V Switching Power Supply loop.

15. the LED display electric power system that has DC time control function according to claim 1, it is characterized in that: in switching power circuit, positive source is connected with diode D1 by 2 pin of terminal J1, D1 is the diode that prevents the power supply reversal connection, 1 pin of J1 is the 0V of input power supply, the other end of diode D1 is connected with 4 pin of relay J DQ1, be connected with diode D8 simultaneously, the other end of diode D8 is connected with electrochemical capacitor C2, simultaneously with capacitor C 3,1 pin of transition diode DW and high frequency transformer B connects, the other end of C2 is connected on the 0V of input power supply, capacitor C 3, the other end of transition diode DW is connected with diode D5,5 of 2 pin of the other end of D5 and high frequency transformer B and Switching Power Supply integrated circuit U1,6,7,8 pin connect, photoelectrical coupler U2 is by A, B two parts are formed, 4 pin of high frequency transformer B are connected with diode D6, the other end of diode D6 and electrochemical capacitor C5,4 pin of Switching Power Supply integrated circuit U1,4 pin of photoelectrical coupler U2B connect, on the other end of electrochemical capacitor C5 and the 0V that receives the input power supply after the end of electric capacity of the dacron C4 is connected, the other end of capacitor C 4 with receive on 3 pin of element switch power IC U1 after 3 pin of element U2B are connected, 1 of Switching Power Supply integrated circuit U1,2 pin are connected on the 0V of input power supply, ceramic disc capacitor C81 one end is connected with 0V, the other end is connected with the end of C82, the other end of C82 is connected with the 0V of output, 5 pin of high frequency transformer B are connected with diode D7, the other end of D7 and electrolytic capacitor filter C7, filter inductance L2, resistance R 2 is connected with R3, the other end of electrolytic capacitor filter C7 is received the 0V of power supply, the other end of resistance R 2 is connected with 1 pin of photoelectrical coupler U2A, 2 pin of photoelectrical coupler U2A are connected with the other end of resistance R 3 simultaneously and link to each other with capacitor C 8 with the K end of reference voltage integrated circuit U3, after linking to each other with the other end of capacitor C 8, the V end of reference voltage integrated circuit U3 links to each other with resistance R 4, constitute voltage comparator circuit, the A of reference voltage integrated circuit U3 terminates to the 0V of power supply, the other end of filter inductance L2 and resistance R 5, electrochemical capacitor C9 goes 1 pin of lotus root capacitor C 6 three terminal regulators to connect, element U204 is general three terminal regulator, is output as DC5V.3 pin of U204 are connected with C207, C208, and the other end of C207 and C208 is connected with the 0V of power supply.

16. according to claim 3,4,7,8,9 or the 10 described LED display electric power systems that have DC time control function, it is characterized in that: in clock circuit, adopt between clock chip and the CPU and carry out exchanges data, thereby finish time control function, in clock circuit, adopt the high precision clock chip DS1302 of MAXIM company, 5 of clock chip U5,6,7 pin respectively with pull-up resistor R8, R7, R6 connects, and with 27 of the single-chip microcomputer U4 of 68HC908JL8ECDW model, 26,25 pin connect the time of reading clock chip DS1302, judge the switching on and shutting down time, resistance R 6, R7, R8 is connected to+5V on, reserve battery B 1 is connected with 8 pin of clock chip U5, the other end of reserve battery B1 is received on the 0V of power supply, crystal oscillator J2 is connected with crystal oscillator matching capacitance C11 with 2 pin of clock chip U5, the other end of C11 is received on the 0V of power supply, the other end of crystal oscillator J2 is connected with crystal oscillator matching capacitance C12, and the other end of crystal oscillator matching capacitance C12 is connected on the 0V of power supply.

17. according to claim 3,4,7,8,9,10, the 11 or 12 described LED display electric power systems that have DC time control function, it is characterized in that: in the CPU treatment circuit, U4 is a single-chip microcomputer, adopt high performance 8 the single-chip microcomputer 68HC908JL8ECDW of MOTOROLA, single-chip microcomputer U4 pin two 7,26,25 respectively with clock chip U5 5,6,7 pin be connected, when with relay circuit, single-chip microcomputer U4 pin two 1 is connected with resistance R 12, the R13 of relay circuit, comes the opening and closing of control relay circuit; When being connected with the triode loop, single-chip microcomputer U4 pin two 1 is connected with resistance R 30; When being connected with voltage acquisition circuit, to the input voltage signal ADV real-time sampling and convert; When being connected, the level variation of input signal ADV is judged with the voltage comparison loop.

18. according to claim 3,7,8,11, the 12 described LED display electric power systems that have DC time control function, it is characterized in that: in relay circuit, load is connected on the terminal J4, element D2 is anti-reverse diode, resistance R 12, resistance R 13 is connected with the pin two 1 of single-chip microcomputer U4, another termination power 0V of resistance R 12, resistance R 13 is connected with the base stage of triode Q1, the collector electrode of triode Q1 is connected with 1 pin of relay J DQ1A, the emitter of triode Q1 meets power supply 0V, diode D4 is in parallel with 1 pin and 2 pin of relay, energising and outage that single-chip microcomputer U4 comes the control relay coil by the high level and the low level of control CTR1 signal.

19. according to claim 3,4,7,8, the 10 described LED display electric power systems that have DC time control function, it is characterized in that: in communicating circuit, 1 of 485 communication chip U6,2,13 of 4 pin and single-chip microcomputer U4,16,14 pin connect, 2 of 485 communication chip U6,3 pin connect, 5 pin of 485 communication chip U6 meet the 0V of power supply, 485 communication chips, 8 pin connect+5V, 7 pin of 485 communication chip U6 and resistance R 15, R17, transition diode T2, transition diode T3,2 pin of terminal J3 connect, 6 pin of 485 communication chip U6 and resistance R 16 and R17, transition diode T1, the transition diode T2 other end, 3 pin of terminal J3 connect, the other end of R16 is received+5V, the other end of transition diode T1 is received on the 0V of power supply, the other end of transition diode T3 is received on the 0V of power supply, 1 pin of terminal J3 is connected to+5V on, 4 pin of terminal J3 are connected on the 0V of power supply, 2 pin of terminal J3 are connected with resistance R 17,3 pin of terminal J3 link to each other with the other end of R17, transition diode T1, T2, T3 adopts the high speed transient diode.

20. according to claim 7, the 9 or 11 described LED display electric power systems that have DC time control function, it is characterized in that: in voltage collection circuit, input voltage signal IN, R18 is connected with divider resistance, the other end of R18 is connected with R19, the other end of R19 is connected with filter capacitor C13 with resistance R 20, receives on the 0V of power supply after the other end parallel connection of resistance R 20 and filter capacitor C13, and the voltage signal ADV of collection is connected with 15 pin of single-chip microcomputer U4 in the cpu circuit.

21. the 10 or 12 described LED display electric power systems that have DC time control function according to Claim 8,, it is characterized in that: in the voltage comparison loop, input voltage signal IN is connected with R31, the other end of R31 is connected with 2 pin of resistance R 33, U30A, the other end of R33 is connected with the 0V of power supply, 3 pin of U30A are connected with resistance R 30, R32, and the other end of resistance R 30 is connected with+5V, and the other end of resistance R 32 is connected with the 0V of power supply.4 pin of U30A are connected with the 0V of power supply, and 8 pin of U30A are connected with+5V.1 pin of U30A is connected with resistance R 34, and 15 pin of while with the U4 in CPU loop are connected.The other end of resistance R 34 is connected with+5V.

22. according to claim 4,9 or the 10 described LED display electric power systems that have DC time control function, it is characterized in that: in the triode loop, the control signal CTR1 of single-chip microcomputer U4 is connected with resistance R 30, the other end of R30 is connected with the base stage of triode Q31, the emitter of triode Q31 is connected with the 0V of power supply, the collector electrode of triode Q31 and resistance R 32, R33 connects, the other end of resistance R 32 is connected the back and is connected with input voltage IN with the emitter of triode Q32, the other end of resistance R 33 is connected with the base stage of triode, the collector electrode of triode Q32 and light-emitting diode D3,1 pin of terminal J4 connects, the other end of D3 is connected with resistance R 1, and the other end of R1 is connected the back and is connected with the 0V of power supply with 2 pin of terminal J4.

Images