Aspect generating and electricity consumption, present situation is, daytime, factory went into operation, and office handles official business, and opens the door in the shop, and electric car, subway etc. need electric energy all at electrification.In the time of at dusk, people come off duty, and go home to cook, and see TV, wash clothes, and iron clothes or the like, and electricity consumption peaks.Generating plant load reaches absolutely, and generated energy is usefulness not enough, have to power cuts to limit consumption, force some local several hrs unregulated power supply, treat the electricity consumption peak later electric power can enough divide timing, close a floodgate again and send., to the late into the night, especially 2 of midnight are to about 6 of mornings, people's sleep of all having a rest at home, and power consumption reduces significantly.The electric power that the generating plant sends can not be stored, and have to reduce generating, has influenced the economic benefit of generating plant.Why people are at dead of night the time, when sufficient electric power supply can be arranged, and electrification? except life and work custom, also have an important economic factors, that is, no matter when electricity consumption of people, the standard of the electricity charge is the same.This way is unfavorable for that the generating plant improves usage ratio of equipment, is unfavorable for improving the economic benefit of generating plant.If can adopt in the different time periods and adopt different expenses standards, some electricity consumer can be adjusted to the lower time period of the electricity charge to the electricity consumption time and go electricity consumption from considering economically.For example adopt on ordinary days early be 1 yuan of every degree electricity charge at 8 at 11 in evening, and 11 of evenings are electric 0.6 yuan of every degree to 2:00 AM, be 0.3 yuan of every degree 2:00 AM to 6 of mornings, 6 of mornings to early 8 be 0.6 yuan of every degree, festivals or holidays such as Sun. early 8 also be every degree 0.6 electricity unit at 11 in evening, like this, electricity consumption when some user will select that the charge for electricity is small, so the user is disperseed the electricity consumption time, increased the benefit in the generating plant.Telephone operator as various countries has taked this charging way already, improves the economic benefit of equipment utilization.
, the structure of present kilowatt meter charge system and corresponding watt-hour meter is single according to how much the rotating and show power consumption of electricity consumption quantity, adopts this system and watt-hour meter can't realize the metering of the different electricity charge of different time.Therefore, a kind of system and the watt-hour meter that can realize the different time different charge is exactly very to need.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Consult Fig. 1, Fig. 1 adopts the wireless remote control mode to carry out the system of electric power block meter rate and the key diagram of device.Left side among the figure is the wireless control signal emitter, the right side watt-hour meter that drawn, the electric power inlet wire of watt-hour meter and electric power outlet and ammeter user.The wireless control signal emitter has comprised the wireless control signal emitter of each various frequency ranges, the simulation signal, digital signal, can adopt, industrial have various radio control signals to produce and transmitter, can select to adopt, according to the cover signal scope, signal intensity etc. are selected to adopt.Since radio paging system also be a kind of radio signal paging signal as control signal, the radio call station can be used as the wireless remote control sender unit in the system of the present invention.
Right side among Fig. 1 is a watt-hour meter, and each watt-hour meter has 4 lead-in wires, and two connect the electric power inlet wire, two various power devices and utensils that meet the ammeter user.Common watt-hour meter also all includes electromechanical drive, tie up by electromagnet, coil, rotating disk etc., being used for that user's power consumption is passed to counter with the Mechanical ﹠ Electrical Transmission mode reacts and shows, counter is driven by electromechanical drive, be used to show the charging electric weight, watt-hour meter is installed in the user place, and total electricity cost of user is measured.Usually the control rotary speed is to adopt resistance or telefault, therefore, corresponding watt-hour meter has adopted and has set up control module in the system of the present invention, control module is made of electronic switch and resistor group, is connected in the control circuit of watt-hour meter, is used to receive the wireless control signal that the control signal emitter sends, and according to the instruction of control signal, make control circuit insert different resistance in the resistor group, make electromechanical drive produce different rotating speeds, thereby make the different demonstration of counter reaction.Block diagram structure in the watt-hour meter among Fig. 1 has reflected above-mentioned explanation.
The electronic switch of control module is parts that receive the specific radio control signal and can move by the instruction of control signal among Fig. 1, can realize that the parts of this function have a lot.
Fig. 2 has provided a kind of block diagram of electronic switch of the control module of Fig. 1, and it can realize technical feature shown in the system shown in Figure 1.Consult Fig. 2, electronic switch includes signal receiving circuit, decoding circuit, central processor CPU, memory, select circuit, each circuit connects with CPU, and wherein, signal receiving circuit is used to receive the wireless remote control command signal, and the remote control command signal that receives amplified and be transferred to decoding circuit, decoding circuit is decoded to the command signal of importing into from signal receiving circuit, passes to central processor CPU then, and CPU carries out signal Processing for the decoded command signal of importing into, and the electronic switch each several part controlled by preset program, memory connects with CPU, stores the address code that this electronic switch is arranged in the memory at least, selects circuit to connect with CPU, select the instruction of circuit, make control circuit insert different resistance in the resistor group according to CPU.
The structure of electronic switch shown in Figure 2 and radio paging receiver similar, can convert by radio paging receiver, mainly be on the basis of pager, remove the parts of functions such as some unwanted sound promptings, increase the selection circuit of an execution output order.
Consult Fig. 3, Fig. 3 is formation one example of the resistor group of control module among Fig. 1.Resistor group shown in the figure is made of 4 resistance and slideway and cursor slide, and cursor slide slides on slideway, and cursor slide is selected circuit to control, to connect different resistance values.Shown in Figure 3 is a kind of example, and similarly the example of resistor group can also have a lot.
Consult Fig. 4, Fig. 4 is an embodiment of watt-hour meter among Fig. 1, and Fig. 4 a is an electrodynamic type watt-hour meter structural upright key diagram, and Fig. 4 b is an electrodynamic type watt-hour meter wiring diagram.Have three flat coils among Fig. 4 a on the aluminum rotating disk as armature, the armature of triple coil places between the magnetic field of a permanent magnet, its electric current is kept by the collection utmost point that is divided into three ones, this collection utmost point is aimed at its direction of current, the armature rotation is not stopped, the gear that drives on the counter with screw thread on the coaxial axle of armature rotates, and makes rolling counters forward.Be depicted as circuit diagram on Fig. 4 b, the electric current of flowing through coil is by electronic switch and resistor group shunting, change the resistance in the resistor group, the divided circuit electric current is changed, thereby control circuit number number is changed changes the armature both end voltage, electric current changes, thereby makes armature aluminium dish rotating speed change, thereby makes the counter display change.When electronic switch is received command signal, make and select a certain resistance to connect in the resistor group, thereby aluminium dish rotating speed is in use changed, make counter decide whether to have the no allowance electricity charge to show by this time period.
Fig. 5 is another embodiment of the watt-hour meter among Fig. 1, be the structure and the line description figure of induction meter, there is no the commutator device shown in Fig. 4 a among Fig. 5, it is configured with two electromagnet, the logical electric current that uses of one coil, the logical voltage that uses of another coil, produce the magnetic line of force through two coils, because the difference in cycle when use in energising in magnetic field, produced portable magnetic field, and on the armature rotating disk of aluminum, produce inductive loop, rotating disk is rotated, because electronic switch and resistor group make the different resistance value of access in the potential winding branch road in the control module when receiving different remote control command signals on the direction of motion of motional electric field, make the electric current of control circuit, voltage, magnetic field etc. change, thereby make the aluminium dish by predetermined rotation rule rotation, that is, should change soon during electricity charge no allowance, when having discount, the electricity charge should transfer low-rotate speed in discount electricity charge ratio, thus the electricity charge numeral situation that the direct explicit user of counter should be paid.
A kind of mode that inserts different resistance in the resistor group with control module control electronic switch that just provided Fig. 4 and Fig. 5 realizes the purpose that will realize among Fig. 1, and in fact, can also adopt the mode of control and change gear train to realize goal of the invention, rotating disk with the final drive shaft sum counter between, increase the charging control gear again, counter being embodied and the charging of demonstration discount by remote control charging control gear, also is feasible way.
Consult Fig. 6, Fig. 6 is wired remote control electric power block meter rate Fare Collection System of the present invention and device key diagram, and Fig. 1 is the wireless remote control mode, and Fig. 6 is the wired remote control mode, all is in order to realize same goal of the invention.Control signal can utilize line of electric force to transmit, and work frequency carrier control signal of for example using in the colliery or the like also has the control signal load mode of multiple pulse digital signal.For example in Utilities Electric Co. or generating plant, control-signals generator is set, shown in Fig. 6 upper left side, be used for producing and having sent line control signal, press the electric power block meter rate constantly, send different control signals, the signal that sends is in order to enter power supply main line and power line, can add signal transformation and inject the unit, be used for to have line control signal to be input among the power supply main line, it should include block condenser, in order to keep apart DC current, or the signal transformation of forming by resistance inductance capacitance and IC etc. and inject the unit, being used to make control signal can pass transformer and entering power line or the like, special with dashed lines adds arrow and is illustrated in signal is injected among the power supply main line among the figure.The right-hand of Fig. 6 is watt-hour meter, watt-hour meter joining power main line and user, watt-hour meter is installed in the user place, total electricity cost to the user is measured, watt-hour meter includes electromechanical drive, being used for power consumption with the user reacts with the Mechanical ﹠ Electrical Transmission mode and shows, include counter, be used for being driven, be used to show the charging electric weight by electromechanical drive, with the system class of Fig. 1 seemingly, watt-hour meter also includes control module especially, control module is made of motor operated switch and resistor group, and control module is identical with Fig. 1 situation, all is connected in the control circuit of watt-hour meter, be used to receive the line control signal that has that control-signals generator sends, and, make control circuit insert different resistance in the resistor group according to the instruction of control signal, make electromechanical drive produce the rotating speed of different expections.
The wireless signal reception condition has differently among the structure situation of control module and Fig. 1, consults Fig. 7, and Fig. 7 is the square frame key diagram of motor operated switch structure among Fig. 6.The motor operated switch that drawn among the figure includes signal reception and treatment circuit and executive circuit, and the signal reception has line control signal with the treatment circuit reception and analyzes and handle, and carries out steering order by executive circuit output.The same with situations such as Fig. 1, Fig. 4, Fig. 5, utilize control signal to change resistance value in the resistor group, make the control circuit parameter change, the rotation situation of the rotating disk that drives counter or gear etc. is changed, thereby make the demonstration of counter, satisfy and meet charging requirement normal and the discount charging.
Enforcement of the present invention will improve the benefit of generating plant and Utilities Electric Co. greatly.