CN102006101B - Power line carrier communication module - Google Patents

Power line carrier communication module Download PDF

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CN102006101B
CN102006101B CN201010607287.6A CN201010607287A CN102006101B CN 102006101 B CN102006101 B CN 102006101B CN 201010607287 A CN201010607287 A CN 201010607287A CN 102006101 B CN102006101 B CN 102006101B
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circuit
resistance
control circuit
input
communication module
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CN102006101A (en
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陈立新
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DONGGUAN HUAYE XINKE ELECTRONIC TECHNOLOGY Co Ltd
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DONGGUAN HUAYE XINKE ELECTRONIC TECHNOLOGY Co Ltd
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Abstract

The invention relates to communication module technology, in particular to a power line carrier communication module. The power line carrier communication module comprises a central control circuit, a synchronous signal processing circuit, a signal receiving circuit, a signal transmitting circuit, an external interface circuit, an external control circuit and a power circuit, wherein the power circuit is used for providing power; the signal receiving circuit comprises a voltage doubling unit for doubling and amplifying a data signal and a voltage dividing unit; and the signal receiving circuit can sequentially perform doubling, amplification and voltage division on the data signal loaded on a power line by the voltage doubling unit and the voltage dividing unit respectively, so that most of interference signals are eliminated and then input to the central control circuit to reduce the influence on detection or demodulation of the central control circuit and ensure that the power line carrier communication module has higher reliability and stability.

Description

A kind of PLC communication module
Technical field
The present invention relates to communication module technology, relate in particular to a kind of PLC communication module.
Background technology
Electric line carrier communication refers to and utilizes existing power line, by carrier system, analog or digital signal is carried out to the technology of high-speed transfer.Because electric line carrier communication has that communication is reliable and stable, route rationally, can concurrent multiplexing remote motion signal, do not need the features such as track investment, electric line carrier communication technology is as emerging mechanics of communication, be applied to just gradually every field, for example: in Smart Home field, conventionally use PLC communication module to realize communicating by letter between main control system and the electric equipments such as light fixture, mains switch.
At present, PLC communication module mainly comprises central control circuit (MCU), synchronization signal processing circuit, signal receiving circuit, signal transmission circuit, external interface circuit, is used to foregoing circuit that the power circuit of power supply is provided; Central control circuit has the functions such as modulation, demodulation, in use, central control circuit can load the data-signal obtaining on power line by signal receiving circuit, can the data-signal of needs transmission be loaded on power line by signal transmission circuit, can carry out exchanges data and corresponding control by the external equipments such as external interface circuit and main control system, electric equipment or external control circuit; And synchronization signal processing circuit is for inputting central control circuit by synchronizing signal.
But, the simple filter circuit that in prior art, the signal receiving circuit of PLC communication module is comprised of resistance, electric capacity, inductance mostly, it will load the data-signal obtaining on power line, only through simple filtering, just input to central control circuit, this may cause the data-signal that inputs to central control circuit to have more interference signal, affect detection or the demodulation of central control circuit, and then reduce the reliability and stability of whole PLC communication module.
Summary of the invention
The object of the invention is to provide for the deficiencies in the prior art a kind of reliability height and the high PLC communication module of stability.
Object of the present invention realizes by following technical measures: a kind of PLC communication module, it includes central control circuit, synchronization signal processing circuit, signal receiving circuit, signal transmission circuit, external interface circuit, external control circuit, for the power circuit of power supply is provided, the output of synchronization signal processing circuit is connected with the synchronous signal input end of central control circuit, the input of signal transmission circuit is connected with the data-signal output of central control circuit, central control circuit is connected with external control circuit by external interface circuit, described signal receiving circuit includes the voltage doubling unit for double amplified data signal, partial pressure unit, the input of voltage doubling unit is connected with power line, the output of voltage doubling unit is connected with the input of partial pressure unit, the output of partial pressure unit is connected with the data-signal input of central control circuit.
Between the input of described voltage doubling unit and power line, be connected with the capacitor C 4 for isolated DC electricity, capacitor C 4 one end are connected with power line, and capacitor C 4 other ends are connected with the input of voltage doubling unit.
Described voltage doubling unit comprises diode D1, diode D2, the input of the just very voltage doubling unit of diode D2, and the output that the negative pole of diode D2 is voltage doubling unit, the negative pole of diode D1 is connected with the positive pole of diode D2, the plus earth of diode D1.
Described partial pressure unit comprises resistance R 6, resistance R 14, the input that resistance R 14 one end are partial pressure unit, and the output that resistance R 14 other ends are partial pressure unit, resistance R 6 one end are connected with resistance R 14 one end, resistance R 6 other end ground connection.
Described synchronization signal processing circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 10, triode Q1, triode Q2, the input that resistance R 1 one end is synchronization signal processing circuit, resistance R 1 one end is connected with power line, resistance R 1 other end and resistance R 10 one end, the base stage of triode Q2 connects, the collector electrode of triode Q2 and resistance R 2 one end, the base stage of triode Q1 connects, the current collection of triode Q1 is the output of synchronization signal processing circuit very, resistance R 3 one end are connected with the collector electrode of triode Q1, resistance R 2 other ends, resistance R 3 other ends are all connected with the power supply of power circuit, resistance R 10 other ends, the emitter of triode Q2, the equal ground connection of emitter of triode Q1.
Described signal transmission circuit comprises resistance R 7, resistance R 8, capacitor C 8, inductance L 2, bidirectional triode thyristor Q5, the input that resistance R 8 one end are signal transmission circuit, resistance R 8 other ends are connected with the 3rd pin of bidirectional triode thyristor Q5, the 1st pin ground connection of bidirectional triode thyristor Q5, the 2nd pin of bidirectional triode thyristor Q5 is connected with resistance R 7 one end, capacitor C 8 one end, resistance R 7 other ends, capacitor C 8 other ends are connected with inductance L 2 one end, the output that inductance L 2 other ends are signal transmission circuit, inductance L 2 other ends are connected with power line.
Described external control circuit comprises key circuit, light adjusting circuit, switching circuit, USB change-over circuit, and key circuit, light adjusting circuit, switching circuit, USB change-over circuit are all connected with central control circuit by external interface circuit.
Described USB change-over circuit comprises conversion processing unit, two-way isolated location, and conversion processing unit is connected with external interface circuit by two-way isolated location.
Beneficial effect of the present invention is: the present invention includes central control circuit, synchronization signal processing circuit, signal receiving circuit, signal transmission circuit, external interface circuit, external control circuit, for the power circuit of power supply is provided, signal receiving circuit includes voltage doubling unit, the partial pressure unit for double amplified data signal, the input of voltage doubling unit is connected with power line, the output of voltage doubling unit is connected with the input of partial pressure unit, and the output of partial pressure unit is connected with the data-signal input of central control circuit.Signal receiving circuit of the present invention can be carried out the double amplification of amplitude, voltage division processing successively to the data-signal loading from power line respectively by voltage doubling unit, partial pressure unit, thereby most interference signal is eliminated, input to again central control circuit, reduce the impact on central control circuit detection or demodulation, make PLC communication module there are higher reliability and stability.
Accompanying drawing explanation
Fig. 1 is the frame principle figure of a kind of PLC communication module of the present invention.
Fig. 2 is the central control circuit of a kind of PLC communication module of the present invention and the circuit theory diagrams of external interface circuit.
Fig. 3 is the synchronization signal processing circuit of a kind of PLC communication module of the present invention and the circuit theory diagrams of signal transmission circuit.
Fig. 4 is the signal receiving circuit of a kind of PLC communication module of the present invention and the circuit theory diagrams of power circuit.
Fig. 5 is the key circuit of a kind of PLC communication module of the present invention and the circuit theory diagrams of switching circuit.
Fig. 6 is the circuit theory diagrams of the light adjusting circuit of a kind of PLC communication module of the present invention.
Fig. 7 is the circuit theory diagrams of the USB change-over circuit of a kind of PLC communication module of the present invention.
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, include:
1---central control circuit 2---synchronization signal processing circuit
3---signal receiving circuit 31---voltage doubling unit
32---partial pressure unit 4---signal transmission circuit
5---external interface circuit 6---power circuit
7---external control circuit 71---key circuit
72---switching circuit 731---conversion processing unit
732---two-way isolated location.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
A kind of PLC communication module of the present invention, as shown in Fig. 1～7, include central control circuit 1, synchronization signal processing circuit 2, signal receiving circuit 3, signal transmission circuit 4, external interface circuit 5, external control circuit 7, for the power circuit 6 of power supply is provided, the output of synchronization signal processing circuit 2 is connected with the synchronous signal input end of central control circuit 1, make synchronization signal processing circuit 2 synchronizing signal can be inputted to central control circuit 1, the input of signal transmission circuit 4 is connected with the data-signal output of central control circuit 1, signal transmission circuit 4 can be loaded into the data-signal (analog or digital signal) of central control circuit 1 output on power line, central control circuit 1 is connected with external control circuit 7 by external interface circuit 5, make central control circuit 1 carry out exchanges data or to control accordingly by external interface circuit 5 and external control circuit 7.
Signal receiving circuit 3 includes the voltage doubling unit 31 for double amplified data signal, partial pressure unit 32, the input of voltage doubling unit 31 is connected with power line, make voltage doubling unit 31 load data-signal (analog or digital signal) from power line, the output of voltage doubling unit 31 is connected with the input of partial pressure unit 32, make data-signal after the double amplification of amplitude of voltage doubling unit 31, input again partial pressure unit 32, the output of partial pressure unit 32 is connected with the data-signal input of central control circuit 1, make data-signal after the voltage division processing of partial pressure unit 32, input to again the data-signal input of central control circuit 1.
Between the input of voltage doubling unit 31 and power line, be connected with the capacitor C 4 for isolated DC electricity, capacitor C 4 one end are connected with power line, more particularly, capacitor C 4 one end are to be connected by the RC pressure unit of power circuit 6 and the L line of power line, capacitor C 4 other ends are connected with the input of voltage doubling unit 31, capacitor C 4 can be isolated the d-c component of the data-signal loading from power line, and the data-signal after isolation is inputted voltage doubling unit 31 again.
Voltage doubling unit 31 comprises diode D1, diode D2, the input of the just very voltage doubling unit 31 of diode D2, the negative pole of diode D2 is the output of voltage doubling unit 31, the negative pole of diode D1 is connected with the positive pole of diode D2, the plus earth of diode D1 (GND), the voltage doubling unit 31 that diode D1 and diode D2 form can carry out to data-signal the processing of the double amplification of amplitude.
Partial pressure unit 32 comprises resistance R 6, resistance R 14, resistance R 14 one end are the input of partial pressure unit 32, resistance R 14 other ends are the output of partial pressure unit 32, resistance R 6 one end are connected with resistance R 14 one end, resistance R 6 other end ground connection, the partial pressure unit 32 that resistance R 6 and resistance R 14 form can be carried out voltage division processing to the data-signal of input, and is converted to the signal that meets central control circuit 1 detection or demodulation.
Synchronization signal processing circuit 2 comprises resistance R 1, resistance R 2, resistance R 3, resistance R 10, triode Q1, triode Q2, resistance R 1 one end is the input of synchronization signal processing circuit 2, resistance R 1 one end is connected with power line, more particularly, the input of synchronization signal processing circuit 2 is to be connected with the L line of power line, resistance R 1 other end and resistance R 10 one end, the base stage of triode Q2 connects, the collector electrode of triode Q2 and resistance R 2 one end, the base stage of triode Q1 connects, the current collection of triode Q1 is the output of synchronization signal processing circuit 2 very, resistance R 3 one end are connected with the collector electrode of triode Q1, resistance R 2 other ends, resistance R 3 other ends are all connected with the power supply (VCC) of power circuit 6, resistance R 10 other ends, the emitter of triode Q2, the equal ground connection of emitter of triode Q1.Synchronization signal processing circuit 2 operation principles are: synchronizing signal is extracted from the L line of power line in resistance R 1 one end, synchronizing signal is after the voltage division processing of resistance R 1 and resistance R 10, by triode Q2, carry out anti-phase processing again, finally by triode Q1, carry out secondary counter and process mutually, the phase preserving that makes to input the synchronizing signal of central control circuit 1 and the sinusoidal signal of power line is identical.
Signal transmission circuit 4 comprises resistance R 7, resistance R 8, capacitor C 8, inductance L 2, bidirectional triode thyristor Q5, resistance R 8 one end are the input of signal transmission circuit 4, resistance R 8 other ends are connected with the 3rd pin of bidirectional triode thyristor Q5, the 1st pin ground connection of bidirectional triode thyristor Q5, the 2nd pin of bidirectional triode thyristor Q5 and resistance R 7 one end, capacitor C 8 one end connect, resistance R 7 other ends, capacitor C 8 other ends are connected with inductance L 2 one end, inductance L 2 other ends are the output of signal transmission circuit 4, inductance L 2 other ends are connected with power line, more particularly, the output of signal transmission circuit 4 is to be connected with the L line of power line, wherein, the N line ground connection of power line.The operation principle of signal transmission circuit 4 is: the energy of power line is stored by capacitor C 8 and inductance L 2, the data-signal of central control circuit 1 output is after resistance R 8, promote bidirectional triode thyristor Q5 the energy of capacitor C 8 and inductance L 2 storages is discharged on power line, the data-signal of realizing central control circuit 1 output is loaded on power line; The effect of resistance R 7 is that the energy of capacitor C 8 and inductance L 2 storages is carried out to the discharge process after power-off, to guarantee the fail safe of circuit.
Power circuit 6 comprises the circuit units such as RC pressure unit that composed in parallel by resistance R 5 and capacitor C 3, the operation principle of power circuit 6 is: the voltage of inputting from power line is after RC pressure unit carries out step-down, by inductance L 1, carry out isolation processing, noise on power line is partly carried out to filtering, pass through by diode D3 again, the rectification unit that voltage stabilizing didoe D4 forms carries out rectification processing, the power supply of output+12V, the power supply of+12V is after voltage stabilizing and smoothing processing that resistance R 9 and capacitor C 11 are carried out, the voltage stabilizing of carrying out secondary through voltage stabilizing didoe D5 is again processed and is made voltage range meet the input requirements of back-end circuit, then, process is by inductance L 3, the L-type filter unit that capacitor C 9 and capacitor C 12 form carries out the stable of secondary, after filtering and level and smooth etc. is processed, input supply voltage conversion chip IC2, the power supply of supply voltage conversion chip IC2 output, process is by resistance R 13, the ∏ type filter unit that capacitor C 10 and capacitor C 13 form carries out last voltage stabilizing and filtering is processed, form and meet the power supply (VCC) that back-end circuit requires completely.
External control circuit 7 comprises key circuit 71, light adjusting circuit, switching circuit 72, USB change-over circuit 73, and key circuit 71, light adjusting circuit, switching circuit 72, USB change-over circuit are all connected with central control circuit 1 by external interface circuit 5.External interface circuit 5 comprises link KEY_1, KEY_2, KEY_3, KEY_4, TRIAC_A, TRIAC_B, RELAY_A, RELAY_B, RX, TX.
Key circuit 71 is connected with central control circuit 1 by link KEY_1, KEY_2, KEY_3, the KEY_4 of external interface circuit 5, by whether pressing of button, change the level state with central control circuit 1 linkage section, thereby transmit relevant switching information.
Light adjusting circuit is connected with central control circuit 1 by link TRIAC_A, the TRIAC_B of external interface circuit 5, makes central control circuit 1 can control light adjusting circuit, reaches the object of light modulation.
Switching circuit 72 is connected with central control circuit 1 by link RELAY_A, the RELAY_B of external interface circuit 5, makes central control circuit 1 control the various electric equipments relevant to switching circuit 72 by control switch circuit 72.
USB change-over circuit comprises conversion processing unit 731, two-way isolated location 732, conversion processing unit 731 is connected with external interface circuit 5 by two-way isolated location 732, two-way isolated location 732 is connected with central control circuit 1 by link RX, the TX of external interface circuit 5, makes central control circuit 1 carry out exchanges data by USB change-over circuit and external equipment (as computer) or circuit.
Wherein, central control circuit 1 adopts single-chip microcomputer IC1, and its model is PIC16F648, and the data-signal that single-chip microcomputer IC1 is 1～200KHz to incoming frequency can complete detection accurately; Triode Q1, triode Q2, triode Q3, triode Q4 are NPN type triode; Certainly, model and the parameter of above-mentioned electronic devices and components are only for reference, and when concrete enforcement the technical program, its model and parameter value can be modified according to actual environment.
Signal receiving circuit 3 of the present invention can be carried out the double amplification of isolated DC, amplitude successively, voltage division processing etc. to the data-signal loading from power line, thereby most interference signal is eliminated, input to again central control circuit 1, reduce the impact on central control circuit 1 detection or demodulation, make PLC communication module there are higher reliability and stability.Certainly, the present invention can be widely used in the communication system in the fields such as Smart Home, the carrier of its data-signal transmission is the power line of 100～220V, 50Hz, each power cycle transmits the digital signal of 4, every two power cycle go out to send complete data, take 8 complete data as a transmission unit, thereby realize the transmission of the data-signal of equipment room.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.

Claims (1)

1. a PLC communication module, it includes central control circuit, synchronization signal processing circuit, signal receiving circuit, signal transmission circuit, external interface circuit, external control circuit, for the power circuit of power supply is provided, the output of synchronization signal processing circuit is connected with the synchronous signal input end of central control circuit, the input of signal transmission circuit is connected with the data-signal output of central control circuit, central control circuit is connected with external control circuit by external interface circuit, it is characterized in that: described signal receiving circuit includes the voltage doubling unit for double amplified data signal, partial pressure unit, the input of voltage doubling unit is connected with power line, the output of voltage doubling unit is connected with the input of partial pressure unit, the output of partial pressure unit is connected with the data-signal input of central control circuit, described synchronization signal processing circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 10, triode Q1, triode Q2, the input that resistance R 1 one end is synchronization signal processing circuit, resistance R 1 one end is connected with power line, resistance R 1 other end and resistance R 10 one end, the base stage of triode Q2 connects, the collector electrode of triode Q2 and resistance R 2 one end, the base stage of triode Q1 connects, the current collection of triode Q1 is the output of synchronization signal processing circuit very, resistance R 3 one end are connected with the collector electrode of triode Q1, resistance R 2 other ends, resistance R 3 other ends are all connected with the power supply of power circuit, resistance R 10 other ends, the emitter of triode Q2, the equal ground connection of emitter of triode Q1.
2. PLC communication module according to claim 1, it is characterized in that: between the input of described voltage doubling unit and power line, be connected with the capacitor C 4 for isolated DC electricity, capacitor C 4 one end are connected with power line, and capacitor C 4 other ends are connected with the input of voltage doubling unit.
3. PLC communication module according to claim 1 and 2, it is characterized in that: described voltage doubling unit comprises diode D1, diode D2, the input of the just very voltage doubling unit of diode D2, the negative pole of diode D2 is the output of voltage doubling unit, the negative pole of diode D1 is connected with the positive pole of diode D2, the plus earth of diode D1.
4. PLC communication module according to claim 1 and 2, it is characterized in that: described partial pressure unit comprises resistance R 6, resistance R 14, the input that resistance R 14 one end are partial pressure unit, the output that resistance R 14 other ends are partial pressure unit, resistance R 6 one end are connected with resistance R 14 one end, resistance R 6 other end ground connection.
5. PLC communication module according to claim 1, it is characterized in that: described signal transmission circuit comprises resistance R 7, resistance R 8, capacitor C 8, inductance L 2, bidirectional triode thyristor Q5, the input that resistance R 8 one end are signal transmission circuit, resistance R 8 other ends are connected with the 3rd pin of bidirectional triode thyristor Q5, the 1st pin ground connection of bidirectional triode thyristor Q5, the 2nd pin of bidirectional triode thyristor Q5 and resistance R 7 one end, capacitor C 8 one end connect, resistance R 7 other ends, capacitor C 8 other ends are connected with inductance L 2 one end, the output that inductance L 2 other ends are signal transmission circuit, inductance L 2 other ends are connected with power line.
6. PLC communication module according to claim 1, it is characterized in that: described external control circuit comprises key circuit, light adjusting circuit, switching circuit, USB change-over circuit, key circuit, light adjusting circuit, switching circuit, USB change-over circuit are all connected with central control circuit by external interface circuit.
7. PLC communication module according to claim 6, is characterized in that: described USB change-over circuit comprises conversion processing unit, two-way isolated location, and conversion processing unit is connected with external interface circuit by two-way isolated location.
CN201010607287.6A 2010-12-27 2010-12-27 Power line carrier communication module Active CN102006101B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103501190B (en) * 2013-10-15 2016-04-20 东莞市华业新科电子科技有限公司 Electric line carrier communication circuit
CN105049085B (en) * 2015-08-20 2018-01-30 深圳市拉格朗日电子有限公司 A kind of electric line communication system
CN112350746B (en) * 2020-09-28 2021-08-10 南京瑞贻电子科技有限公司 Channel weakening detection system and method for power line carrier communication system
CN113489165B (en) * 2021-05-26 2024-02-13 广东高标智能科技股份有限公司 Non-contact rotating body electric energy transmission and communication device and electric bicycle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1933348A (en) * 2006-10-10 2007-03-21 东南大学 Zero intermediate frequency receiver and receiving method in electric line carrier communication
CN201374695Y (en) * 2009-03-09 2009-12-30 青岛大荣实业有限公司 Embedded low-voltage power line carrier communication module
CN201674391U (en) * 2010-04-30 2010-12-15 深圳市博源电子有限公司 Circuit for achieving wide-power supply operation of switch power supply without power factor correction
CN201904780U (en) * 2010-12-27 2011-07-20 东莞市华业新科电子科技有限公司 PLC communication module

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2151585Y (en) * 1993-01-30 1993-12-29 佟锦 Remote group controlling carrier signals collector
CN1992546B (en) * 2005-12-30 2010-10-13 杨华 Intelligent power line carrier transmitting-receiving system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1933348A (en) * 2006-10-10 2007-03-21 东南大学 Zero intermediate frequency receiver and receiving method in electric line carrier communication
CN201374695Y (en) * 2009-03-09 2009-12-30 青岛大荣实业有限公司 Embedded low-voltage power line carrier communication module
CN201674391U (en) * 2010-04-30 2010-12-15 深圳市博源电子有限公司 Circuit for achieving wide-power supply operation of switch power supply without power factor correction
CN201904780U (en) * 2010-12-27 2011-07-20 东莞市华业新科电子科技有限公司 PLC communication module

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