CN202362666U - Control device based on power line carrier communication - Google Patents
Control device based on power line carrier communication Download PDFInfo
- Publication number
- CN202362666U CN202362666U CN2011205312285U CN201120531228U CN202362666U CN 202362666 U CN202362666 U CN 202362666U CN 2011205312285 U CN2011205312285 U CN 2011205312285U CN 201120531228 U CN201120531228 U CN 201120531228U CN 202362666 U CN202362666 U CN 202362666U
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- pin
- electric capacity
- resistance
- ripple
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The utility model relates to a control device of a power communication carrier technology and in particular relates to a control device based on power line carrier communication. The control device is mainly applied to industrial control, fireproofing alarm and central control conditioning systems, and is especially suitable for setting up a small and medium size control system and a building inside automatic control system. The control device comprises a 220V power line, a node controller, an MCU (microprogrammed control unit) processor and a power carrier communication device, wherein the power carrier communication device is combined by a host computer module and more than two terminal modules into a whole; and the host computer module receives a communication command of an upper computer through an RS232 communication line and then sends a carrier signal. The control device is mainly used for solving the technical problems of how to design a sending drive circuit and a receiving circuit and simultaneously separate the receiving circuit from the sending circuit, and the like..The control device has the following advantages: the power conversion efficiency for sending the signal is significantly improved, the signal transmission distance is improved, and the sensitivity for receiving the signal is also improved. The control device has the advantages of faster response, stability, reliability, and the like.
Description
Technical field
The utility model relates to a kind of control device of power communication ZAP; Especially refer to a kind of Industry Control, fireproof alarming, central authorities' control adjusting system of being mainly used in; Need not to set up in addition order wire; Be specially adapted to set up the inner automatic control system of middle-size and small-size control system and building, present technique is to utilize 220V power line carrier signal to communicate, and realizes master controller and a plurality of Node Controllers in affiliated lower end; Control the switch control of all kinds of 220V electrical equipment, as insert at Node Controller control corresponding the power line carrier, PLC control device of voltage of need.
Background technology
At present, based on some application of power communication ZAP, show through consulting related data in market; Real practicality and few, and each has something to recommend him, existing each ingredient is not that the reception transmitting sensitivity is low; Be exactly that the bit error rate is too high, and defective such as anti-interference difference.
Summary of the invention
In order to overcome above-mentioned weak point; The fundamental purpose of the utility model aims to provide a kind of power line carrier, PLC control device, mainly is made up of a host module and N terminal module, and carrier wave sent after host module can receive the host computer communications command through RS232; And send carrier signal to terminal module and carry out Xie Bohou; Send to host computer through RS233, terminal module only is responsible for separating ripple and is carried out, the device that carrier wave sends; On the same phase place in same power transformation zone, use present technique, can save control signal greatly and make and the site operation expense, to existing device a kind of especially easily control device that undergoes technological transformation based on power line carrier communication.
The technical matters that the utility model will solve is: solve and how design transmitter driving circuit, drive not enough problem thereby solve original radiating circuit; How to solve the designed reception circuit, improve the problem of receiving sensitivity; Solve and isolate receiving circuit and transtation mission circuit how simultaneously, make two paths isolated operations, thereby get rid of the relevant technologies problems such as interference of transtation mission circuit and power circuit.
The utility model solves the technical scheme that its technical matters adopted: this device comprises main frame, terminal, 220V line of electric force, Node Controller, MCU processor, FET, narrow-band frequency modulation chip, modulator-demodular unit, crystal oscillator, serial communication chip, RS232 connection interface and PC and INTERNET telecommunication; The input/output terminal of said main frame is electrically connected with the I/O at each terminal through the 220V line of electric force each other; The output signal of said main frame is transferred to the input end of PC and INTERNET telecommunication module through the RS232 connection; Said terminal is electrically connected through the port of Node Controller with all kinds of 220V electric switches each other; Said all kinds of 220V electric switch is electrically connected with the port of each power lights, control lamp, controlled electric appliance respectively each other; The power line carrier, PLC control device is made up of a host module and two above terminal modules; Host module sends carrier signal after receiving the host computer communications command through the RS232 connection; And send carrier signal to terminal module and carry out Xie Bohou, send to host computer through the RS232 connection, this device comprises at least:
One power line carrier, PLC control device by control module, separate that mode piece, carrier module, electric power coupled circuit are conciliate ripple and the carrier wave buffer circuit is formed, wherein:
The input/output signal of one control module is divided into four the tunnel: the input/output terminal of the first via is electrically connected with the I/O of PC and INTERNET telecommunication each other; The second tunnel input end is electrically connected with the output terminal of separating the mode piece each other; The output terminal of Third Road is electrically connected with the input end of carrier module each other, the four tunnel output terminal with separate the input end of ripple and be electrically connected each other with the carrier wave buffer circuit;
One separate the mode piece input end with separate the output terminal of ripple and be electrically connected each other with the carrier wave buffer circuit;
The output terminal of one carrier module with separate the input end of ripple and be electrically connected each other with the carrier wave buffer circuit:
The output signal of one electric power coupled circuit is divided into two the tunnel: the input/output terminal of the first via is electrically connected with the 220V line of electric force each other, the second tunnel input/output terminal with separate the I/O of ripple and be electrically connected each other with the carrier wave buffer circuit;
One separates ripple is divided into four the tunnel with the input/output signal of carrier wave buffer circuit: the input end of the first via is electrically connected with the output terminal of control module each other; The second tunnel input end is electrically connected with the output terminal of carrier module each other; The output terminal of Third Road is electrically connected with the input end of separating the mode piece each other, and the four tunnel input/output terminal is electrically connected with the I/O of electric power coupled circuit each other.
Further, the transmitting section of the MCU processor control circuit of power line carrier, PLC control device is made up of modulated spread spectrum signal input circuit resonant power amplification driving circuit in the host module of described a kind of control device based on power line carrier communication; Receiving unit is made up of bandpass filtering BPF and AFE(analog front end) AFE partial circuit; The carrier wave transmitting terminal of FSK modulator-demodular unit, separate the ripple receiving end both by relay respectively with carrier wave transmitted power drive part, Xie Bo accept filter the part be electrically connected each other, wherein:
The pin 1,2,3,4 of MCU processor is electrically connected with the pin 9,10,11,12 of socket 1 is parallel each other respectively;
The pin 5 of MCU processor is electrically connected with serial communication pin of chip 12 each other;
The pin 6 of MCU processor is electrically connected via the base stage of resistance 10 with triode 1 each other; The collector of triode 1 is electrically connected with the ground of separating the mode piece each other; A road of the emitter of triode 1 is electrically connected with the pin 11 of MCU processor via resistance 6,7 each other, and another road is electrically connected with the port of the 177KHZ of carrier module each other;
The pin 7 of MCU processor is electrically connected with serial communication pin of chip 12 each other;
The pin 9 of MCU processor is electrically connected with power supply+5V via resistance 9 and light emitting diode 2 each other;
The pin 10 of MCU processor is electrically connected via resistance 8 and light emitting diode 3 and power supply+5V and resistance 6, line between 7 each other;
A road of the pin 11 of MCU processor is electrically connected with the emitter of triode 1 via resistance 7,6 each other, and another road is electrically connected with the output port of carrier module each other;
The pin 12 of MCU processor is electrically connected via the base stage of resistance 5 with triode 2 each other,
The emitter of triode 2 is electrically connected with the negative pole of light emitting diode 4, the positive pole of diode 3 and the pin 6 of relay successively each other, and the collector of triode 2 is electrically connected back ground connection each other with the collector of triode 3;
The pin 13 of MCU processor is electrically connected via the base stage of resistance 4 with triode 3 each other; The emitter of triode 3 is electrically connected with the negative pole of light emitting diode 5, the positive pole of diode and the pin 2 of socket 7 successively each other, and the collector of triode 3 is electrically connected back ground connection each other with the collector of triode 2;
A road of the pin 14 of MCU processor is electrically connected with an end of crystal oscillator each other, and another road is electrically connected back ground connection each other via an electric capacity 6 and an end of electric capacity 7;
A road of the pin 15 of MCU processor is electrically connected with the other end of crystal oscillator each other, and another road is electrically connected back ground connection each other via the electric capacity 7 and the other end of electric capacity 6;
The pin 17 of MCU processor is electrically connected with the pin 13 of socket 1 each other;
The pin 18,19,20,21,22,23 and 24 of MCU processor is electrically connected with the pin 17,15,13,11,9,7 and 5 of socket 2 is parallel each other respectively;
The pin 26,27 and 28 of MCU processor is electrically connected with the pin 1,2 and 3 of socket 1 is parallel each other respectively;
The pin 29 of MCU processor a road via reset key and resistance 13 and connect back ground connection, another road is electrically connected with the pin 1 and the power supply+5V of socket 2 via resistance 14 back each other;
The pin 30,31,32 and 33 of MCU processor is electrically connected with the pin 19,17,15 and 13 of socket 3 is parallel each other respectively;
The pin 34,35,36 and 37 of MCU processor is electrically connected with the pin 11,9,7 and 5 of socket 3 is parallel each other respectively;
The pin 38 of MCU processor a road via electric capacity 13 back ground connection, another road is electrically connected with power supply+5V each other;
The pin 39 of MCU processor is electrically connected with the base stage of triode 4 via resistance 12 backs each other; The grounded collector of triode 4; A road of the emitter of triode 4 is electrically connected with power supply+5V via resistance 11 each other, and another road is electrically connected with the input port of separating the mode piece each other;
The pin 40,41,42,43 and 44 of MCU processor is electrically connected with the pin 4,5,6,7 and 8 of socket 1 is parallel each other respectively;
The pin 1 of relay and electric capacity 4, inductance 2 and two-phase diode also connect an end and are electrically connected back ground connection each other; Pin 4 is electrically connected with the port of the 275KHZ of carrier module each other; The negative pole and the resistance 2 of pin 3 and diode 3 also connects end and is electrically connected each other and then is electrically connected each other with power supply+5V; Pin 6 is electrically connected with the positive pole of diode 3, the negative pole of light emitting diode 4 and the emitter of triode 2 successively each other; Pin 5 is electrically connected with the output port of separating the mode piece each other, and pin 8 and electric capacity 4, inductance 2 and two-phase diode and the other end that connects are electrically connected the back each other and are electrically connected each other with an end of coil.
Further, the mode piece of separating of described a kind of control device based on power line carrier communication is separated ripple chip, ceramic crystal oscillator 1 and socket by integrated at least and is formed, wherein:
Separate ripple pin of chip 1 successively via electric capacity 2, electric capacity 1 and inductance and connect end and resistance 2 back is electrically connected with the pin 1 of socket 1 each other;
Separating ripple pin of chip 3 is electrically connected with the pin 1 of ceramic crystal oscillator 1 each other;
Separate ripple pin of chip 4 a road via electric capacity 3, resistance 4, resistance 2 and ceramic crystal oscillator 2 and connect end, and via electric capacity 5 back ground connection, the pin 2,3,4 of another road and socket 1 also connects end and is electrically connected each other and then is electrically connected each other with power supply+5V;
Separating ripple pin of chip 5 is electrically connected with the pin 5 of ceramic crystal oscillator 1 each other;
Separate ripple pin of chip 6 via electric capacity 3 back ground connection;
Separate ripple pin of chip 7 via electric capacity 4 back ground connection;
Separate ripple pin of chip 8 a road via resistance 2 back ground connection, another road is via ceramic crystal oscillator 2 back ground connection;
Separate ripple pin of chip 9 and be divided into two-way after via resistance 8, the one tunnel via resistance 10,11 and 12 back ground connection, and another road is via electric capacity 10 back ground connection;
Separate and be divided into two-way after being connected in series electric capacity 9 between ripple pin of chip 10 and the pin 11, the one tunnel via resistance 7 back ground connection, and another road is connected between resistance 10 and the resistance 11;
Separate ripple pin of chip 14 and be divided into two-way, the one tunnel is electrically connected with the pin 7 of socket 2 each other, and another road is electrically connected with power supply+5V via resistance 5 backs each other;
Separate ripple pin of chip 15 and be divided into two-way, the one tunnel via being electrically connected another road ground connection each other with power supply+5V behind the electric capacity 12;
Separate ripple pin of chip 16 and be divided into two-way after via electric capacity 11, the one tunnel via electric capacity 6 back ground connection, and another road is divided into two-way again via behind electric capacity 7 and the resistance 3, and one the tunnel is electrically connected with the pin 9 of socket 2 via electric capacity 8 backs each other, and another road is via the back ground connection of resistance 4.
Further, the ripple chip of separating in the mode piece of separating of described a kind of control device based on power line carrier communication is a narrow-band frequency modulation demodulation integrated circuit LM3361 frequency modulation chip.
Further, the carrier wave driver module circuit in the carrier module of described a kind of control device based on power line carrier communication is made up of metal-oxide-semiconductor field effect transistor, triode and socket at least, wherein:
The pin 2 of metal-oxide-semiconductor field effect transistor is divided into two-way, and one the tunnel via be electrically connected with the pin 4 of metal-oxide-semiconductor field effect transistor behind the electric capacity 2 each other, and another road is electrically connected with the pin 5 of socket 32 each other;
The pin 3 of metal-oxide-semiconductor field effect transistor via resistance 1, electric capacity 3 and electric capacity 4 and connect the back be electrically connected each other with the collector of triode;
The pin 4 of metal-oxide-semiconductor field effect transistor is electrically connected with the pin 2 of metal-oxide-semiconductor field effect transistor and the pin 5 of socket 32 via electric capacity 2 backs each other;
After the pin 5,6,7 and 8 of metal-oxide-semiconductor field effect transistor is connected with each other, be electrically connected each other with the pin 1 of socket 31 via inductance and electric capacity 1 back again;
The base stage of triode is connected between resistance 2 and the resistance 3; The emitter of triode is divided into two-way; One the tunnel is electrically connected another road each other with power supply+12V is electrically connected with the other end of resistance each other; The collector of triode and resistance 1, electric capacity 3 and electric capacity 4 and connect end and be electrically connected each other, another of resistance 1, electric capacity 3 and electric capacity 4 also connects holds ground connection.
The beneficial effect of the utility model is: the modulation module of this device is very heavy in the line of electric force load; Under the big situation of power line noise, can be good at carrying out the signal transmission, simultaneously owing to receive the separation of transtation mission circuit; Make that the power conversion efficiency of sending signal is significantly promoted; Mention nearly 95% efficient by original 25%, driving force reaches peak-to-peak value 6V, has improved signal transmission distance.Improve the sensitivity that receives signal again, can receive the signal of peak-to-peak value about 2V; Can on the same phase place in same power transformation zone, use present technique, can save control signal greatly and make and the site operation expense, it is especially convenient that existing device is undergone technological transformation; Have and respond advantages such as very fast and reliable and stable.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Accompanying drawing 1 is the utility model power line carrier communication one-piece construction synoptic diagram;
Accompanying drawing 2 is the structure block diagram of the utility model power line carrier, PLC control device;
Accompanying drawing 3 is separated the circuit theory diagrams of mode piece for the utility model;
Accompanying drawing 4 is the utility model carrier wave driver module circuit theory diagrams;
Accompanying drawing 5 is the power communication modular circuit schematic diagram of the utility model MCU chip;
Label declaration in the accompanying drawing:
1-power line carrier, PLC control device;
2-PC machine and INTERNET telecommunication;
The 11-control module;
12-separates the mode piece;
The 13-carrier module;
14-electric power coupled circuit;
15-separates ripple and carrier wave buffer circuit;
Embodiment
See also accompanying drawing 1,2,3,4, shown in 5, the utility model has been developed transmitter driving circuit voluntarily according to the characteristic of power line carrier, PLC, has solved original radiating circuit and has driven not enough problem, under the heavy load situation, high emissive ability can be provided; Develop receiving circuit voluntarily, used filtering, resonance principle, improved receiving sensitivity.Isolate receiving circuit and transtation mission circuit simultaneously, the interference of transtation mission circuit and power circuit has been got rid of in two paths isolated operations, has further improved receiving sensitivity.
The utility model comprises two big modules; A host module and N terminal module are formed; Host module is the same basically with terminal module hardware; Carrier wave sent after host module can receive the host computer communications command through RS233, and sent carrier signal to terminal module and carry out Xie Bohou, sent host computer through RS233.Terminal module only is responsible for separating ripple and is carried out, and carrier wave sends.
The utility model comprises main frame, terminal, 220V line of electric force, Node Controller, MCU processor, FET, narrow-band frequency modulation chip, modulator-demodular unit, crystal oscillator, serial communication chip, RS232 connection interface and PC and INTERNET telecommunication 2; The input/output terminal of said main frame is electrically connected with the I/O at each terminal through the 220V line of electric force each other; The output signal of said main frame is transferred to the input end of PC and INTERNET telecommunication 2 modules through the RS232 connection; Said terminal is electrically connected through the port of Node Controller with all kinds of 220V electric switches each other; Said all kinds of 220V electric switch is electrically connected with the port of each power lights, control lamp, controlled electric appliance respectively each other; Power line carrier, PLC control device 1 is made up of a host module and two above terminal modules; Host module sends carrier signal after receiving the host computer communications command through the RS232 connection; And send carrier signal to terminal module and carry out Xie Bohou, send to host computer through the RS232 connection, this device comprises at least:
One power line carrier, PLC control device 1 by control module 11, separate that mode piece 12, carrier module 13, electric power coupled circuit 14 conciliate ripples and carrier wave buffer circuit 15 is formed, wherein:
The input/output signal of one control module 11 is divided into four the tunnel: the input/output terminal of the first via is electrically connected with the I/O of PC and INTERNET telecommunication 2 each other; The second tunnel input end is electrically connected with the output terminal of separating mode piece 12 each other; The output terminal of Third Road is electrically connected with the input end of carrier module 13 each other, the four tunnel output terminal with separate the input end of ripple and be electrically connected each other with carrier wave buffer circuit 15;
One separate mode piece 12 input end with separate the output terminal of ripple and be electrically connected each other with carrier wave buffer circuit 15;
The output terminal of one carrier module 13 with separate the input end of ripple and be electrically connected each other with carrier wave buffer circuit 15;
The output signal of one electric power coupled circuit 14 is divided into two the tunnel: the input/output terminal of the first via is electrically connected with the 220V line of electric force each other, the second tunnel input/output terminal with separate the I/O of ripple and be electrically connected each other with carrier wave buffer circuit 15;
One separates ripple is divided into four the tunnel with the input/output signal of carrier wave buffer circuit 15: the input end of the first via is electrically connected with the output terminal of control module 11 each other; The second tunnel input end is electrically connected with the output terminal of carrier module 13 each other; The output terminal of Third Road is electrically connected with the input end of separating mode piece 12 each other, and the four tunnel input/output terminal is electrically connected with the I/O of electric power coupled circuit 14 each other.
Further, the transmitting section of the MCU processor control circuit of power line carrier, PLC control device 1 is made up of modulated spread spectrum signal input circuit resonant power amplification driving circuit in the host module of described a kind of control device based on power line carrier communication; Receiving unit has bandpass filtering BPF (Band-Pass Filter) and AFE(analog front end) AFE (Analog FrontEnd) partial circuit to form; The carrier wave transmitting terminal of FSK (Frequecy-shift Keying) modulator-demodular unit, separate the ripple receiving end both by relay respectively with carrier wave transmitted power drive part, Xie Bo accept filter the part be electrically connected each other, wherein:
The pin 1,2,3,4 of MCU processor is electrically connected with the pin 9,10,11,12 of socket 1 is parallel each other respectively;
The pin 5 of MCU processor is electrically connected with serial communication pin of chip 12 each other;
The pin 6 of MCU processor is electrically connected via the base stage of resistance 10 with triode 1 each other; The collector of triode 1 is electrically connected with the ground of separating mode piece 12 each other; A road of the emitter of triode 1 is electrically connected with the pin 11 of MCU processor via resistance 6,7 each other, and another road is electrically connected with the port of the 177KHZ of carrier module 13 each other;
The pin 7 of MCU processor is electrically connected with serial communication pin of chip 12 each other;
The pin 9 of MCU processor is electrically connected with power supply+5V via resistance 9 and light emitting diode 2 each other;
The pin 10 of MCU processor is electrically connected via resistance 8 and light emitting diode 3 and power supply+5V and resistance 6, line between 7 each other;
A road of the pin 11 of MCU processor is electrically connected with the emitter of triode 1 via resistance 7,6 each other, and another road is electrically connected with the output port of carrier module 13 each other;
The pin 12 of MCU processor is electrically connected via the base stage of resistance 5 with triode 2 each other; The emitter of triode 2 is electrically connected with the negative pole of light emitting diode 4, the positive pole of diode 3 and the pin 6 of relay successively each other, and the collector of triode 2 is electrically connected back ground connection each other with the collector of triode 3;
The pin 13 of MCU processor is electrically connected via the base stage of resistance 4 with triode 3 each other; The emitter of triode 3 is electrically connected with the negative pole of light emitting diode 5, the positive pole of diode and the pin 2 of socket 7 successively each other, and the collector of triode 3 is electrically connected back ground connection each other with the collector of triode 2;
A road of the pin 14 of MCU processor is electrically connected with an end of crystal oscillator each other, and another road is electrically connected back ground connection each other via an electric capacity 6 and an end of electric capacity 7;
A road of the pin 15 of MCU processor is electrically connected with the other end of crystal oscillator each other, and another road is electrically connected back ground connection each other via the electric capacity 7 and the other end of electric capacity 6;
The pin 17 of MCU processor is electrically connected with the pin 13 of socket 1 each other;
The pin 18,19,20,21,22,23 and 24 of MCU processor is electrically connected with the pin 17,15,13,11,9,7 and 5 of socket 2 is parallel each other respectively;
The pin 26,27 and 28 of MCU processor is electrically connected with the pin 1,2 and 3 of socket 1 is parallel each other respectively;
The pin 29 of MCU processor a road via reset key and resistance 13 and connect back ground connection, another road is electrically connected with the pin 1 and the power supply+5V of socket 2 via resistance 14 back each other;
The pin 30,31,32 and 33 of MCU processor is electrically connected with the pin 19,17,15 and 13 of socket 3 is parallel each other respectively;
The pin 34,35,36 and 37 of MCU processor is electrically connected with the pin 11,9,7 and 5 of socket 3 is parallel each other respectively;
The pin 38 of MCU processor a road via electric capacity 13 back ground connection, another road is electrically connected with power supply+5V each other;
The pin 39 of MCU processor is electrically connected with the base stage of triode 4 via resistance 12 backs each other; The grounded collector of triode 4; A road of the emitter of triode 4 is electrically connected with power supply+5V via resistance 11 each other, and another road is electrically connected with the input port of separating mode piece 12 each other;
The pin 40,41,42,43 and 44 of MCU processor is electrically connected with the pin 4,5,6,7 and 8 of socket 1 is parallel each other respectively;
The pin 1 of relay and electric capacity 4, inductance 2 and two-phase diode also connect an end and are electrically connected back ground connection each other; Pin 4 is electrically connected with the port of the 275KHZ of carrier module 13 each other; The negative pole and the resistance 2 of pin 3 and diode 3 also connects end and is electrically connected each other and then is electrically connected each other with power supply+5V; Pin 6 is electrically connected with the positive pole of diode 3, the negative pole of light emitting diode 4 and the emitter of triode 2 successively each other; Pin 5 is electrically connected with the output port of separating mode piece 12 each other, and pin 8 and electric capacity 4, inductance 2 and two-phase diode and the other end that connects are electrically connected the back each other and are electrically connected each other with an end of coil.
See also shown in the accompanying drawing 3, further, the mode piece 12 of separating of described a kind of control device based on power line carrier communication is separated ripple chip, ceramic crystal oscillator 1 and socket by integrated at least and is formed, wherein:
Separate ripple pin of chip 1 successively via electric capacity 2, electric capacity 1 and inductance and connect end and resistance 2 back is electrically connected with the pin 1 of socket 1 each other;
Separating ripple pin of chip 3 is electrically connected with the pin 1 of ceramic crystal oscillator 1 each other;
Separate ripple pin of chip 4 a road via electric capacity 3, resistance 4, resistance 2 and ceramic crystal oscillator 2 and connect end, and via electric capacity 5 back ground connection, the pin 2,3,4 of another road and socket 1 also connects end and is electrically connected each other and then is electrically connected each other with power supply+5V;
Separating ripple pin of chip 5 is electrically connected with the pin 5 of ceramic crystal oscillator 1 each other;
Separate ripple pin of chip 6 via electric capacity 3 back ground connection;
Separate ripple pin of chip 7 via electric capacity 4 back ground connection;
Separate ripple pin of chip 8 a road via resistance 2 back ground connection, another road is via ceramic crystal oscillator 2 back ground connection;
Separate ripple pin of chip 9 and be divided into two-way after via resistance 8, the one tunnel via resistance 10,11 and 12 back ground connection, and another road is via electric capacity 10 back ground connection;
Separate and be divided into two-way after being connected in series electric capacity 9 between ripple pin of chip 10 and the pin 11, the one tunnel via resistance 7 back ground connection, and another road is connected between resistance 10 and the resistance 11;
Separate ripple pin of chip 14 and be divided into two-way, the one tunnel is electrically connected with the pin 7 of socket 2 each other, and another road is electrically connected with power supply+5V via resistance 5 backs each other;
Separate ripple pin of chip 15 and be divided into two-way, the one tunnel via being electrically connected another road ground connection each other with power supply+5V behind the electric capacity 12;
Separate ripple pin of chip 16 and be divided into two-way after via electric capacity 11, the one tunnel via electric capacity 6 back ground connection, and another road is divided into two-way again via behind electric capacity 7 and the resistance 3, and one the tunnel is electrically connected with the pin 9 of socket 2 via electric capacity 8 backs each other, and another road is via the back ground connection of resistance 4.
Further, the ripple chip of separating in the mode piece 12 of separating of described a kind of control device based on power line carrier communication is a narrow-band frequency modulation demodulation integrated circuit LM3361 frequency modulation chip.
See also shown in the accompanying drawing 4, further, the carrier wave driver module circuit in the carrier module 13 of described a kind of control device based on power line carrier communication is made up of metal-oxide-semiconductor field effect transistor, triode and socket at least, wherein:
The pin 2 of metal-oxide-semiconductor field effect transistor is divided into two-way, and one the tunnel via be electrically connected with the pin 4 of metal-oxide-semiconductor field effect transistor behind the electric capacity 2 each other, and another road is electrically connected with the pin 5 of socket 32 each other;
The pin 3 of metal-oxide-semiconductor field effect transistor via resistance 1, electric capacity 3 and electric capacity 4 and connect the back be electrically connected each other with the collector of triode;
The pin 4 of metal-oxide-semiconductor field effect transistor is electrically connected with the pin 2 of metal-oxide-semiconductor field effect transistor and the pin 5 of socket 32 via electric capacity 2 backs each other;
After the pin 5,6,7 and 8 of metal-oxide-semiconductor field effect transistor is connected with each other, be electrically connected each other with the pin 1 of socket 31 via inductance and electric capacity 1 back again;
The base stage of triode is connected between resistance 2 and the resistance 3; The emitter of triode is divided into two-way; One the tunnel is electrically connected another road each other with power supply+12V is electrically connected with the other end of resistance each other; The collector of triode and resistance 1, electric capacity 3 and electric capacity 4 and connect end and be electrically connected each other, another of resistance 1, electric capacity 3 and electric capacity 4 also connects holds ground connection.
The specific structural features of the utility model is following:
See also accompanying drawing 1,2,3,4, shown in 5, the utility model can be realized electric power carrier wave remote communication, gathering for the control of electric power data acquisition or electric power provides the communication maybe.It is centre frequency that this patent adopts 270kHz, satisfies State Grid's carrier communication standard.
The utility model comprises: 1, MCU processor control circuit 2, FSK modulator-demodular unit (carrier wave transmitter driving circuit, LM3361 separate ripple accept filter circuit) 3, strong and weak electricity buffer circuit.Specifically comprise three big functional modules, control function module, carrier wave functional module are conciliate the wave energy module and are formed.
Control function module: undertaken band spectrum modulation to the power line carrier signal by the MCU processor, send into driving circuit (carrier wave functional module) subsequently and carry out power amplification, carrier wave is sent into line of electric force.When receiving power carrier signal, separate the wave energy module and send into the MCU processor to the digital signal of Xie Bohou, accomplish modulation the FSK information code.Wherein comprise coding, the error correction of coding information source synchronizing signal, information, the function of decoding control.These all have software to realize.
Carrier wave functional module: adopt metal-oxide-semiconductor field effect transistor MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) resonant mode that carrier signal is carried out sending into line of electric force after the power amplification.The design object of circuit is to improve output signal power, and carrier signal is injected line of electric force effectively.Improved the distance that carrier wave sends.
Separate the wave energy module: receive the carrier signal on the electric power; Amplify through resonance power, improve the signal received power in the frequency band, partly realized the carrier wave from line of electric force is carried out filter function through filtering again; The noise of the non-carrier signal of filtering; Make receiving end carry out demodulation to signal easily, accomplish the conversion of simulating signal, send into control function module to digital signal through separating the ripple chip.
The utility model also adopts understands ripple reception and carrier wave transmission partition method.Utilize the normal-closed end reconciliation mode piece of relay to link to each other.The Chang Kaiduan of relay links to each other with carrier module.Make the carrier wave of accepting with sending separate the ripple Signal Separation, prevented that promptly signal attenuation from having improved the sensitivity that signal receives again.
See also accompanying drawing 3,4, shown in 5, the signal transmission unit of power line carrier communication divides by modulated spread spectrum signal input, resonance power amplifier section circuit and forms, the design object of circuit is the raising output signal power, and carrier signal is injected line of electric force effectively.Line of electric force is separated the signal receive section of wave communication and is made up of bandpass filtering BPF and AFE(analog front end) AFE partial circuit, the modulated spread spectrum signal from line of electric force is carried out effective analog demodulator receive.The design object of signal receiving circuit is the signal received power that improves in the frequency band, suppresses the noise of line of electric force to greatest extent.
The transmission carrier frequency of MCU processor is given driving circuit, and driving circuit carries out power amplification, and carrier wave is sent into electric power.When power carrier signal, separate ripple, send into the MCU processor, accomplish the modulation of FSK information code through LM3361.Wherein comprise coding, the error correction of coding information source synchronizing signal, information, the function of decoding control.These all have software to realize.
The carrier wave transmitting terminal of FSK modulator-demodular unit, separate the ripple receiving end both by relay respectively with carrier wave transmitted power drive part, Xie Bo accept filter the part link to each other.Make the carrier wave of accepting with sending separate the ripple Signal Separation, prevented that promptly signal attenuation from having improved the sensitivity that signal receives again.Carrier power drive part reconciliation ripple accepts filter and partly is connected with the strong and weak electricity isolated part again.
The utility model adopts MOSFET carrier signal to be carried out power amplification, the line of electric force of making a gift to someone behind the parallel resonance.Under equal conditions, improved the distance that carrier wave sends.
The part that accepts filter Xie Bo has realized the carrier wave from line of electric force is carried out filter function, and the noise of the non-carrier signal of filtering makes receiving end carry out demodulation to signal easily.
The strong and weak electricity isolated part has been realized, the isolation of carrier module and 220V alternating current, the simultaneously real function of being responsible for being delivered to carrier signal the 220V line of electric force.
Though the utility model is described with reference to current specific embodiment; But those of ordinary skill in the art should be realized that; Above embodiment is used for explaining the utility model, under the situation that does not break away from the utility model spirit, also can make the variation and the modification of various equivalences, therefore; As long as to the variation of the foregoing description, conversion all will drop in the scope of the utility model claims in the connotation scope of the utility model.
Claims (5)
1. control device based on power line carrier communication; This device comprises main frame, terminal, 220V line of electric force, Node Controller, MCU processor, FET, narrow-band frequency modulation chip, modulator-demodular unit, crystal oscillator, serial communication chip, RS232 connection interface and PC and INTERNET telecommunication (2); The input/output terminal of said main frame is electrically connected with the I/O at each terminal through the 220V line of electric force each other; The output signal of said main frame is transferred to the input end of PC and INTERNET telecommunication (2) module through the RS232 connection; Said terminal is electrically connected through the port of Node Controller with all kinds of 220V electric switches each other; Said all kinds of 220V electric switch is electrically connected with the port of each power lights, control lamp, controlled electric appliance respectively each other; It is characterized in that: power line carrier, PLC control device (1) is made up of a host module and two above terminal modules, and host module sends carrier signal after receiving the host computer communications command through the RS232 connection, and sends carrier signal to terminal module and carry out Xie Bohou; Send to host computer through the RS232 connection, this device comprises at least:
One power line carrier, PLC control device (1) by control module (11), separate that mode piece (12), carrier module (13), electric power coupled circuit (14) are conciliate ripple and carrier wave buffer circuit (15) is formed, wherein:
The input/output signal of one control module (11) is divided into four the tunnel: the input/output terminal of the first via is electrically connected with the I/O of PC and INTERNET telecommunication (2) each other; The second tunnel input end is electrically connected with the output terminal of separating mode piece (12) each other; The output terminal of Third Road is electrically connected with the input end of carrier module (13) each other, the four tunnel output terminal with separate the input end of ripple and be electrically connected each other with carrier wave buffer circuit (15);
One separate mode piece (12) input end with separate the output terminal of ripple and be electrically connected each other with carrier wave buffer circuit (15);
The output terminal of one carrier module (13) with separate the input end of ripple and be electrically connected each other with carrier wave buffer circuit (15);
The output signal of one electric power coupled circuit (14) is divided into two the tunnel: the input/output terminal of the first via is electrically connected with the 220V line of electric force each other, the second tunnel input/output terminal with separate the I/O of ripple and be electrically connected each other with carrier wave buffer circuit (15);
One separates ripple is divided into four the tunnel with the input/output signal of carrier wave buffer circuit (15): the input end of the first via is electrically connected with the output terminal of control module (11) each other; The second tunnel input end is electrically connected with the output terminal of carrier module (13) each other; The output terminal of Third Road is electrically connected with the input end of separating mode piece (12) each other, and the four tunnel input/output terminal is electrically connected with the I/O of electric power coupled circuit (14) each other.
2. a kind of control device based on power line carrier communication according to claim 1 is characterized in that: the transmitting section of the MCU processor control circuit of power line carrier, PLC control device (1) is made up of modulated spread spectrum signal input circuit resonant power amplification driving circuit in the described host module; Receiving unit is made up of bandpass filtering BPF and AFE(analog front end) AFE partial circuit; The carrier wave transmitting terminal of FSK modulator-demodular unit, separate the ripple receiving end both by relay respectively with carrier wave transmitted power drive part, Xie Bo accept filter the part be electrically connected each other, wherein:
The pin 1,2,3,4 of MCU processor is electrically connected with the pin 9,10,11,12 of socket 1 is parallel each other respectively;
The pin 5 of MCU processor is electrically connected with serial communication pin of chip 12 each other;
The pin 6 of MCU processor is electrically connected via the base stage of resistance 10 with triode 1 each other; The collector of triode 1 is electrically connected with the ground of separating mode piece (12) each other; A road of the emitter of triode 1 is electrically connected with the pin 11 of MCU processor via resistance 6,7 each other, and another road is electrically connected with the port of the 177KHZ of carrier module (13) each other;
The pin 7 of MCU processor is electrically connected with serial communication pin of chip 12 each other;
The pin 9 of MCU processor is electrically connected with power supply+5V via resistance 9 and light emitting diode 2 each other;
The pin 10 of MCU processor is electrically connected via resistance 8 and light emitting diode 3 and power supply+5V and resistance 6, line between 7 each other;
A road of the pin 11 of MCU processor is electrically connected with the emitter of triode 1 via resistance 7,6 each other, and another road is electrically connected with the output port of carrier module (13) each other;
The pin 12 of MCU processor is electrically connected via the base stage of resistance 5 with triode 2 each other; The emitter of triode 2 is electrically connected with the negative pole of light emitting diode 4, the positive pole of diode 3 and the pin 6 of relay successively each other, and the collector of triode 2 is electrically connected back ground connection each other with the collector of triode 3;
The pin 13 of MCU processor is electrically connected via the base stage of resistance 4 with triode 3 each other; The emitter of triode 3 is electrically connected with the negative pole of light emitting diode 5, the positive pole of diode and the pin 2 of socket 7 successively each other, and the collector of triode 3 is electrically connected back ground connection each other with the collector of triode 2;
A road of the pin 14 of MCU processor is electrically connected with an end of crystal oscillator each other, and another road is electrically connected back ground connection each other via an electric capacity 6 and an end of electric capacity 7;
A road of the pin 15 of MCU processor is electrically connected with the other end of crystal oscillator each other, and another road is electrically connected back ground connection each other via the electric capacity 7 and the other end of electric capacity 6;
Pin 16 ground connection of MCU processor;
The pin 17 of MCU processor is electrically connected with the pin 13 of socket 1 each other;
The pin 18,19,20,21,22,23 and 24 of MCU processor is electrically connected with the pin 17,15,13,11,9,7 and 5 of socket 2 is parallel each other respectively;
The pin 26,27 and 28 of MCU processor is electrically connected with the pin 1,2 and 3 of socket 1 is parallel each other respectively;
The pin 29 of MCU processor a road via reset key and resistance 13 and connect back ground connection, another road is electrically connected with the pin 1 and the power supply+5V of socket 2 via resistance 14 back each other;
The pin 30,31,32 and 33 of MCU processor is electrically connected with the pin 19,17,15 and 13 of socket 3 is parallel each other respectively;
The pin 34,35,36 and 37 of MCU processor is electrically connected with the pin 11,9,7 and 5 of socket 3 is parallel each other respectively;
The pin 38 of MCU processor a road via electric capacity 13 back ground connection, another road is electrically connected with power supply+5V each other;
The pin 39 of MCU processor is electrically connected with the base stage of triode 4 via resistance 12 backs each other; The grounded collector of triode 4; A road of the emitter of triode 4 is electrically connected with power supply+5V via resistance 11 each other, and another road is electrically connected with the input port of separating mode piece (12) each other;
The pin 40,41,42,43 and 44 of MCU processor is electrically connected with the pin 4,5,6,7 and 8 of socket 1 is parallel each other respectively;
The pin 1 of relay and electric capacity 4, inductance 2 and two-phase diode also connect an end and are electrically connected back ground connection each other; Pin 4 is electrically connected with the port of the 275KHZ of carrier module (13) each other; The negative pole and the resistance 2 of pin 3 and diode 3 also connects end and is electrically connected each other and then is electrically connected each other with power supply+5V; Pin 6 is electrically connected with the positive pole of diode 3, the negative pole of light emitting diode 4 and the emitter of triode 2 successively each other; Pin 5 is electrically connected with the output port of separating mode piece (12) each other, and pin 8 and electric capacity 4, inductance 2 and two-phase diode and the other end that connects are electrically connected the back each other and are electrically connected each other with an end of coil.
3. a kind of control device based on power line carrier communication according to claim 1 is characterized in that: the described mode piece (12) of separating is separated ripple chip, ceramic crystal oscillator 1 and socket by integrated at least and is formed, wherein:
Separate ripple pin of chip 1 successively via electric capacity 2, electric capacity 1 and inductance and connect end and resistance 2 back is electrically connected with the pin 1 of socket 1 each other;
Separating ripple pin of chip 3 is electrically connected with the pin 1 of ceramic crystal oscillator 1 each other;
Separate ripple pin of chip 4 a road via electric capacity 3, resistance 4, resistance 2 and ceramic crystal oscillator 2 and connect end, and via electric capacity 5 back ground connection, the pin 2,3,4 of another road and socket 1 also connects end and is electrically connected each other and then is electrically connected each other with power supply+5V;
Separating ripple pin of chip 5 is electrically connected with the pin 5 of ceramic crystal oscillator 1 each other;
Separate ripple pin of chip 6 via electric capacity 3 back ground connection;
Separate ripple pin of chip 7 via electric capacity 4 back ground connection;
Separate ripple pin of chip 8 a road via resistance 2 back ground connection, another road is via ceramic crystal oscillator 2 back ground connection;
Separate ripple pin of chip 9 and be divided into two-way after via resistance 8, the one tunnel via resistance 10,11 and 12 back ground connection, and another road is via electric capacity 10 back ground connection;
Separate and be divided into two-way after being connected in series electric capacity 9 between ripple pin of chip 10 and the pin 11, the one tunnel via resistance 7 back ground connection, and another road is connected between resistance 10 and the resistance 11;
Separate series resistor 6 between ripple pin of chip 11 and the pin 12;
Separate ripple pin of chip 14 and be divided into two-way, the one tunnel is electrically connected with the pin 7 of socket 2 each other, and another road is electrically connected with power supply+5V via resistance 5 backs each other;
Separate ripple pin of chip 15 and be divided into two-way, the one tunnel via being electrically connected another road ground connection each other with power supply+5V behind the electric capacity 12;
Separate ripple pin of chip 16 and be divided into two-way after via electric capacity 11, the one tunnel via electric capacity 6 back ground connection, and another road is divided into two-way again via behind electric capacity 7 and the resistance 3, and one the tunnel is electrically connected with the pin 9 of socket 2 via electric capacity 8 backs each other, and another road is via the back ground connection of resistance 4.
4. a kind of control device based on power line carrier communication according to claim 1 is characterized in that: the described ripple chip of separating in the mode piece (12) of separating is a narrow-band frequency modulation demodulation integrated circuit LM3361 frequency modulation chip.
5. a kind of control device based on power line carrier communication according to claim 1 is characterized in that: the carrier wave driver module circuit in the described carrier module (13) is made up of metal-oxide-semiconductor field effect transistor, triode and socket at least, wherein:
Pin 1 ground connection of metal-oxide-semiconductor field effect transistor;
The pin 2 of metal-oxide-semiconductor field effect transistor is divided into two-way, and one the tunnel via be electrically connected with the pin 4 of metal-oxide-semiconductor field effect transistor behind the electric capacity 2 each other, and another road is electrically connected with the pin 5 of socket 32 each other;
The pin 3 of metal-oxide-semiconductor field effect transistor via resistance 1, electric capacity 3 and electric capacity 4 and connect the back be electrically connected each other with the collector of triode;
The pin 4 of metal-oxide-semiconductor field effect transistor is electrically connected with the pin 2 of metal-oxide-semiconductor field effect transistor and the pin 5 of socket 32 via electric capacity 2 backs each other;
After the pin 5,6,7 and 8 of metal-oxide-semiconductor field effect transistor is connected with each other, be electrically connected each other with the pin 1 of socket 31 via inductance and electric capacity 1 back again;
The base stage of triode is connected between resistance 2 and the resistance 3; The emitter of triode is divided into two-way; One the tunnel is electrically connected another road each other with power supply+12V is electrically connected with the other end of resistance each other; The collector of triode and resistance 1, electric capacity 3 and electric capacity 4 and connect end and be electrically connected each other, another of resistance 1, electric capacity 3 and electric capacity 4 also connects holds ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205312285U CN202362666U (en) | 2011-12-16 | 2011-12-16 | Control device based on power line carrier communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205312285U CN202362666U (en) | 2011-12-16 | 2011-12-16 | Control device based on power line carrier communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362666U true CN202362666U (en) | 2012-08-01 |
Family
ID=46573838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205312285U Expired - Fee Related CN202362666U (en) | 2011-12-16 | 2011-12-16 | Control device based on power line carrier communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362666U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546198A (en) * | 2013-10-28 | 2014-01-29 | 阳光电源股份有限公司 | Direct current carrier wave communication device, method and communication system |
| CN104683272A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨市三和佳美科技发展有限公司 | Frequency-modulated wave power line carrier communication module |
| CN104898443A (en) * | 2015-05-18 | 2015-09-09 | 袁涌耀 | Gateway and intelligent household electrical appliance terminal based on power line carrier and implementation method thereof |
| CN105430846A (en) * | 2015-12-17 | 2016-03-23 | 李海林 | Power line communication-based lighting controller |
| CN105788224A (en) * | 2016-02-15 | 2016-07-20 | 黄焕珠 | Control device for household power line carrier |
| CN110166081A (en) * | 2018-02-12 | 2019-08-23 | 西门子股份公司 | It is communicated by communication line |
| CN110572188A (en) * | 2019-09-20 | 2019-12-13 | 深圳瓦特智汇科技有限公司 | Circuit and method for configuring and upgrading power supply based on power line carrier |
| CN112968489A (en) * | 2021-02-23 | 2021-06-15 | 深圳市泰科动力系统有限公司 | Battery pack output control circuit |
-
2011
- 2011-12-16 CN CN2011205312285U patent/CN202362666U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546198B (en) * | 2013-10-28 | 2016-03-30 | 阳光电源股份有限公司 | A kind of DC carrier wave communication device, method and communication system |
| CN103546198A (en) * | 2013-10-28 | 2014-01-29 | 阳光电源股份有限公司 | Direct current carrier wave communication device, method and communication system |
| CN104683272A (en) * | 2013-11-27 | 2015-06-03 | 哈尔滨市三和佳美科技发展有限公司 | Frequency-modulated wave power line carrier communication module |
| CN104898443A (en) * | 2015-05-18 | 2015-09-09 | 袁涌耀 | Gateway and intelligent household electrical appliance terminal based on power line carrier and implementation method thereof |
| CN105430846B (en) * | 2015-12-17 | 2018-09-18 | 李海林 | A kind of lighting controller based on power line communication |
| CN105430846A (en) * | 2015-12-17 | 2016-03-23 | 李海林 | Power line communication-based lighting controller |
| CN105788224A (en) * | 2016-02-15 | 2016-07-20 | 黄焕珠 | Control device for household power line carrier |
| CN110166081A (en) * | 2018-02-12 | 2019-08-23 | 西门子股份公司 | It is communicated by communication line |
| CN110166081B (en) * | 2018-02-12 | 2021-12-28 | 西门子股份公司 | Communicating via a communication line |
| CN110572188A (en) * | 2019-09-20 | 2019-12-13 | 深圳瓦特智汇科技有限公司 | Circuit and method for configuring and upgrading power supply based on power line carrier |
| CN110572188B (en) * | 2019-09-20 | 2024-02-20 | 深圳瓦特智汇科技有限公司 | Circuit and method for configuring and upgrading power supply based on power carrier |
| CN112968489A (en) * | 2021-02-23 | 2021-06-15 | 深圳市泰科动力系统有限公司 | Battery pack output control circuit |
| CN112968489B (en) * | 2021-02-23 | 2022-07-01 | 深圳市泰科动力系统有限公司 | Battery pack output control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202362666U (en) | Control device based on power line carrier communication | |
| CN105515616B (en) | A kind of direct current supply line carrier communication system and communication means | |
| CN102739234B (en) | Multi-channel digital signal input/output isolating box and power control system | |
| CN102752025A (en) | Communication system based on power line and visible lights | |
| CN106788606A (en) | A kind of electric line carrier communication method | |
| CN201838170U (en) | All-purpose learning remote controller | |
| CN203434667U (en) | Wireless charging RFID communication apparatus | |
| CN104038286A (en) | Communication system | |
| CN110245103A (en) | Synchronization signal bus circuit, synchronization system and synchronous method for wired in parallel | |
| CN103676680B (en) | Remote control system of household electrical appliance with family's cloud and back-stage management | |
| CN105848372A (en) | Multi-lamp networking drive circuit and method for visible communication | |
| CN201655009U (en) | Electrical appliance remote control system | |
| CN201222744Y (en) | On-site bus isolation transmission equipment | |
| CN208937961U (en) | Mining control device with power line communication | |
| CN206865454U (en) | A kind of electric line carrier communication control system | |
| CN207490958U (en) | Broadband power line and CAN bus converter | |
| CN201869212U (en) | Two-wire-system host computer circuit | |
| CN104023440B (en) | Public illumination MANET remote controllers and method | |
| CN203327000U (en) | OFDM technology-based power line carrier wave apparatus | |
| CN2414470Y (en) | Distribution type traffic signal lamp controller | |
| CN102005822A (en) | Device capable of performing single-point monitoring on low-voltage electric equipment | |
| CN201017448Y (en) | Remote controlling device | |
| CN210491291U (en) | A centralized control ware for wisdom lighting control system | |
| CN2571072Y (en) | Carrier wave electric power signal monitor | |
| CN101335515A (en) | Timing wireless remote controlled multi-way switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20201216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |