The wireless control terminal of compatible electric switch installationTechnical field
The present invention relates to intelligent building accessories, in particular to a kind of wireless control of compatible conventional electrical switch mounting conditionTerminal.
Background technique
In recent years, wireless network and wireless control technology, technology of Internet of things, smart home achieve and develop on a large scale very much, wirelesslyThe electric appliances such as the LED lamp of network-control are increasing.This also brings where and how installed a network control to construction and decorationThe challenge of terminal processed, optimal network control terminal installation place are existing switch mounting boxs.As long as its cover board does not shield nothingLine signal wireless network can work normally just.However the power supply of controlling terminal is one the problem of challenge.Usually openOne only had in ac circuit in box is closed, common power supply adaptor cannot be connected and powered for it, some is controlled before thisTerminal is powered using energy harvesting technology, for example uses mechanical energy, the solar energy etc. of switch.These have certain limitation,It protrudes the source that weakness is energy and is difficult to ensure.For example, switch mechanical energy power supply is completely dependent on on-off times, can only use substantiallyIn switch Terminal Type；Solar energy is illuminated by the light condition limitation etc., in the application of test instrumentation class, passes through electric current periphery magnetic-field measurement electricityStream is a kind of conventional means, and it is theoretically feasible for obtaining electric energy by magnetic field induction, but there are comparable in Project RealizationChallenge.The present invention is directed to this puts into effect.
Summary of the invention
Present invention aims to overcome that above-mentioned the deficiencies in the prior art and a kind of existing electric switch mounting ring of compatibility is providedThe wireless network control terminal of border condition, the terminal can not depend on other external energy independent work, with lower cost satisfactionThe needs of construction and decoration intellectualized reconstruction, realize the object of the invention the technical solution adopted is that: invention " compatible electric switch installationWireless control terminal ", which includes following functions component:
One, power supply module group
Including induction coil module, rectification circuit module, DCDC conversion module, memory module etc.
Two, control module group
Including interface sub-module, controller submodule, data and code storage block, peripheral hardware submodule etc.
Three, wireless module group
Including interface sub-module, base band submodule, RF submodule etc., the configuration with usual wireless network terminal is no different, these functionEnergy component is with the following functions
1, benefit Electricity Functional is taken
(1) magnetic field energy that supply lines generates is converted into induced voltage,
(2) by inductive signal it is rectified after with DC-DC converting into target voltage to store,
(3) detecting on supply lines has no current to pass through, and has and then enables conversion circuit and power to storage unit, otherwise disconnects and take benefitElectric unit,
2, control function
(1) house dog: it is responsible for waking processor by wireless network instruction
(2) it is operated by built-in processing routine
3, communication function
It establishes and is connected to the network with server
The present invention can make the wireless network terminal of reasonable power consumption, the installation site of conventional electrical switch is directly installed on, by cityAn offer induction electric energy in electrical circuit,
Detailed description of the invention:
Fig. 1 .1 is the mounting structure schematic diagram of the present invention " wireless control terminal of compatible electric switch installation ",
Fig. 1 .2 is a kind of structural schematic diagram for meeting the present invention " wireless control terminal of compatible electric switch installation ",
Fig. 2 is the circuit block diagram of the present invention " wireless control terminal of compatible electric switch installation ",
Fig. 3 is the work flow diagram of the present invention " wireless control terminal of compatible electric switch installation ",
Specific embodiment:
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments,
As shown in Fig. 1 .1, the wireless control terminal of the compatible electric switch installation of the present invention is mounted on typical electric switch positionIt sets, usually in a closed mounting box C, one alternating current power transmission line A passes through this switch enclosure, it is usually placed in PC pipeline B,
As a special case, as are shown in figure 1.2, the wireless control terminal of the compatible electric switch installation of the present invention is encapsulated in shellIn B, it is mounted on the cover board C of switch enclosure, A1 A2 is the binding post for connecting alternating current power transmission line, and D is wireless network antenna, thisThe circuit structure of invention " wireless control terminal of compatible electric switch installation " is as shown in Fig. 2, include induction module B, DC-DCConversion module C, electric energy storage module D, DC-DC conversion module C1, processor E, memory go out G, periphery peripheral hardware H, communication module FAnd its antenna F1 etc., wherein induction module B obtains induced voltage, output and DC-DC conversion module C company from power transmission line AIt connects.The output of C is connect with electric energy storage module D.Induction module B is made of inductance coil and circumferential component, is not sent out with power transmission lineThe magnetic field given birth to physical connection and the latter is relied on to generate generates induced voltage
Module D is usually made of battery or super capacitor and circumferential component, is responsible for the storage of electric energy.Here voltage depends onElectric energy storage number, module D connect with second DC-DC module C1, and the work that the voltage on D is converted to standard by the latter is electricPressure is that subsequent module is powered, and master controller E module is responsible for the control of entire terminal.It generally includes ADC sample circuit all the way,Power supply status is obtained, server is reported by network in due course.Server can in this way monitor terminal power supply state, determine to wakeThe duty ratio of the latter.When necessary, server may insure that enough electric currents pass through terminal in time enough, to guarantee terminalNormal work.E is also responsible for the power management of itself and peripheral modules, it is ensured that suspend mode and dynamic power consumption are as small as possible, E withMemory G is connected, and the latter is responsible for storing code and local data,
E is connected with all kinds of periphery peripheral hardware H on demand, is sensed, the operation such as actuation.The example of H include but is not limited to light, sound,Temperature sensor, relay and its driving, etc.,
E is connected with communication module F, and the latter includes interface sub-module, base band submodule, RF submodule etc., is connected to antenna F1,Wireless network communication is established between processor and server,
The detailed circuit structure of the above DC-DC module (C in Fig. 2) is as shown in Figure 3, and induced voltage input is filtered via rectification firstWave circuit A is converted into direct current.Here rectification circuit should be made of the low element of MOS element or other forward voltage drops as far as possible.Booster circuit B is responsible for voltage needed for the output of A to be converted into storage element charging.That is, storing mould according to electric energyThe virtual voltage of block adjusts charging voltage.The voltage of output end (connection storage element) is sent back to B through feedback amplifier D and is made thusFor reference.Ensure in this way with sufficiently high voltage is charged and guarantees lowest loss, to avoid causing when induction electric energy is too lowMemory module electric leakage, it is one-way conduction that simulating diode circuit C, which ensures to export,.