CN102006101A - Power line carrier communication module - Google Patents
Power line carrier communication module Download PDFInfo
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- CN102006101A CN102006101A CN2010106072876A CN201010607287A CN102006101A CN 102006101 A CN102006101 A CN 102006101A CN 2010106072876 A CN2010106072876 A CN 2010106072876A CN 201010607287 A CN201010607287 A CN 201010607287A CN 102006101 A CN102006101 A CN 102006101A
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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
Technical field
The present invention relates to the communication module technology, relate in particular to a kind of electric line carrier communication module.
Background technology
Electric line carrier communication is meant and utilizes existing power line, the analog or digital signal carried out the technology of high-speed transfer by carrier system.Because electric line carrier communication has that message transmission is reliable and stable, route rationally, simultaneously multiplexing remote motion signal, do not need characteristics such as track investment, the electric line carrier communication technology is as emerging mechanics of communication, be applied to every field just gradually, for example: in the Smart Home field, usually electrification line carrier communication module realizes communicating by letter between main control system and the electric equipments such as light fixture, mains switch.
At present, the electric line carrier 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 functions such as modulation, demodulation, in use, central control circuit can load the data-signal that obtains on the power line by signal receiving circuit, can will need data signals transmitted to be loaded on the power line by signal transmission circuit, can carry out exchanges data and corresponding control by external equipments such as external interface circuit and main control system, electric equipment or external control circuit; And synchronization signal processing circuit is used for synchronizing signal is imported central control circuit.
But, the simple filter circuit that the signal receiving circuit of electric line carrier communication module is made up of resistance, electric capacity, inductance mostly in the prior art, it will load the data-signal that obtains on the power line, only just input to central control circuit through simple filtering, this data-signal that may cause inputing to central control circuit has more interference signal, influence the detection or the demodulation of central control circuit, and then reduce the reliability and stability of whole electric line carrier communication module.
Summary of the invention
The objective of the invention is to provides a kind of reliability high and stable high electric line carrier communication module at the deficiencies in the prior art.
Purpose of the present invention realizes by following technical measures: a kind of electric line carrier communication module, it includes central control circuit, synchronization signal processing circuit, signal receiving circuit, signal transmission circuit, external interface circuit, external control circuit, be used to provide the power circuit of power supply, 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 multiplication of voltage unit that is used for double amplified data signal, partial pressure unit, the input of multiplication of voltage unit is connected with power line, the output of multiplication of voltage 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.
Be connected with the capacitor C 4 that is used for the isolated DC electricity between the input of described multiplication of voltage unit and the power line, capacitor C 4 one ends are connected with power line, and capacitor C 4 other ends are connected with the input of multiplication of voltage unit.
Described multiplication of voltage unit comprises diode D1, diode D2, the input of the just very multiplication of voltage unit of diode D2, and the negative pole of diode D2 is the output of multiplication of voltage 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, and resistance R 14 1 ends are the input of partial pressure unit, and resistance R 14 other ends are the output of partial pressure unit, and resistance R 6 one ends are connected with resistance R 14 1 ends, 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, resistance R 1 one ends are the input of synchronization signal processing circuit, resistance R 1 one ends are connected with power line, resistance R 1 other end and resistance R 10 1 ends, the base stage of triode Q2 connects, the collector electrode of triode Q2 and resistance R 2 one ends, 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 ends are connected with the collector electrode of triode Q1, resistance R 2 other ends, resistance R 3 other ends all are connected with the power supply of power circuit, resistance R 10 other ends, the emitter of triode Q2, the equal ground connection of the 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, resistance R 8 one ends are the input of 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 ends, capacitor C 8 one ends, resistance R 7 other ends, capacitor C 8 other ends are connected with inductance L 2 one ends, inductance L 2 other ends are the output of signal transmission circuit, and 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 all are 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, be used to provide the power circuit of power supply, signal receiving circuit includes multiplication of voltage unit, the partial pressure unit that is used for double amplified data signal, the input of multiplication of voltage unit is connected with power line, the output of multiplication of voltage 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 successively the double amplification of amplitude, voltage division processing to loaded data signal from power line respectively by multiplication of voltage unit, partial pressure unit, thereby most interference signal is eliminated, input to central control circuit again, reduce influence, make the electric line carrier communication module have higher reliability and stability central control circuit detection or demodulation.
Description of drawings
Fig. 1 is the frame principle figure of a kind of electric line carrier communication module of the present invention.
Fig. 2 is the central control circuit of a kind of electric line carrier 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 electric line carrier 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 electric line carrier communication module of the present invention and the circuit theory diagrams of power circuit.
Fig. 5 is the key circuit of a kind of electric line carrier 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 electric line carrier communication module of the present invention.
Fig. 7 is the circuit theory diagrams of the USB change-over circuit of a kind of electric line carrier 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---multiplication of voltage 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
The present invention is further illustrated below in conjunction with accompanying drawing.
A kind of electric line carrier communication module of the present invention, 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, be used to provide the power circuit 6 of power supply, 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 imported 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 the power line, central control circuit 1 is connected with external control circuit 7 by external interface circuit 5, makes central control circuit 1 carry out exchanges data or control corresponding by external interface circuit 5 and external control circuit 7.
Be connected with the capacitor C 4 that is used for the isolated DC electricity between the input of multiplication of voltage unit 31 and the power line, capacitor C 4 one ends are connected with power line, more particularly, capacitor C 4 one ends are that the RC pressure unit by power circuit 6 is connected with the L line of power line, capacitor C 4 other ends are connected with the input of multiplication of voltage unit 31, capacitor C 4 can be isolated the d-c component of loaded data signal from power line, and the data-signal after the isolation is imported multiplication of voltage unit 31 again.
Multiplication of voltage unit 31 comprises diode D1, diode D2, the input of the just very multiplication of voltage unit 31 of diode D2, the negative pole of diode D2 is the output of multiplication of voltage 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 multiplication of voltage unit 31 that diode D1 and diode D2 form can carry out the processing of the double amplification of amplitude to data-signal.
Partial pressure unit 32 comprises resistance R 6, resistance R 14, resistance R 14 1 ends 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 ends are connected with resistance R 14 1 ends, resistance R 6 other end ground connection, the partial pressure unit 32 that resistance R 6 and resistance R 14 are formed 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 ends are the input of synchronization signal processing circuit 2, resistance R 1 one ends are 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 1 ends, the base stage of triode Q2 connects, the collector electrode of triode Q2 and resistance R 2 one ends, 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 ends are connected with the collector electrode of triode Q1, resistance R 2 other ends, resistance R 3 other ends all are 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 the emitter of triode Q1.Synchronization signal processing circuit 2 operation principles are: resistance R 1 one ends extract synchronizing signal from the L line of power line, after the voltage division processing of synchronizing signal through resistance R 1 and resistance R 10, carry out anti-phase processing by triode Q2 again, carry out the anti-phase processing of secondary by triode Q1 at last, make the synchronizing signal of input central control circuit 1 keep identical with the phase place of the sinusoidal signal of power line.
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 purpose of light modulation.
The 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 single-chip microcomputer IC1 is that the data-signal of 1~200KHz can both be finished detection accurately to incoming frequency; Triode Q1, triode Q2, triode Q3, triode Q4 are NPN type triode; Certainly, the model and the parameter of above-mentioned electronic devices and components are only for reference, and when specifically implementing the technical program, its model and parameter value can be made amendment according to actual environment.
Should be noted that at last; 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 make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.
Claims (8)
1. electric line carrier communication module, it includes central control circuit, synchronization signal processing circuit, signal receiving circuit, signal transmission circuit, external interface circuit, external control circuit, be used to provide the power circuit of power supply, 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 multiplication of voltage unit that is used for double amplified data signal, partial pressure unit, the input of multiplication of voltage unit is connected with power line, the output of multiplication of voltage 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.
2. electric line carrier communication module according to claim 1, it is characterized in that: be connected with the capacitor C 4 that is used for the isolated DC electricity between the input of described multiplication of voltage unit and the power line, capacitor C 4 one ends are connected with power line, and capacitor C 4 other ends are connected with the input of multiplication of voltage unit.
3. electric line carrier communication module according to claim 1 and 2, it is characterized in that: described multiplication of voltage unit comprises diode D1, diode D2, the input of the just very multiplication of voltage unit of diode D2, the negative pole of diode D2 is the output of multiplication of voltage unit, the negative pole of diode D1 is connected with the positive pole of diode D2, the plus earth of diode D1.
4. electric line carrier communication module according to claim 1 and 2, it is characterized in that: described partial pressure unit comprises resistance R 6, resistance R 14, resistance R 14 1 ends are the input of partial pressure unit, resistance R 14 other ends are the output of partial pressure unit, resistance R 6 one ends are connected with resistance R 14 1 ends, resistance R 6 other end ground connection.
5. electric line carrier communication module according to claim 1, it is characterized in that: described synchronization signal processing circuit comprises resistance R 1, resistance R 2, resistance R 3, resistance R 10, triode Q1, triode Q2, resistance R 1 one ends are the input of synchronization signal processing circuit, resistance R 1 one ends are connected with power line, resistance R 1 other end and resistance R 10 1 ends, the base stage of triode Q2 connects, the collector electrode of triode Q2 and resistance R 2 one ends, 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 ends are connected with the collector electrode of triode Q1, resistance R 2 other ends, resistance R 3 other ends all are connected with the power supply of power circuit, resistance R 10 other ends, the emitter of triode Q2, the equal ground connection of the emitter of triode Q1.
6. electric line carrier 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, resistance R 8 one ends are the input of 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 ends, capacitor C 8 one ends connect, resistance R 7 other ends, capacitor C 8 other ends are connected with inductance L 2 one ends, inductance L 2 other ends are the output of signal transmission circuit, and inductance L 2 other ends are connected with power line.
7. electric line carrier 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, and key circuit, light adjusting circuit, switching circuit, USB change-over circuit all are connected with central control circuit by external interface circuit.
8. electric line carrier communication module according to claim 7 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.
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CN201010607287.6A CN102006101B (en) | 2010-12-27 | 2010-12-27 | Power line carrier communication module |
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CN201010607287.6A CN102006101B (en) | 2010-12-27 | 2010-12-27 | Power line carrier communication module |
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CN102006101B CN102006101B (en) | 2014-04-16 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103501190A (en) * | 2013-10-15 | 2014-01-08 | 东莞市华业新科电子科技有限公司 | Power line carrier communication circuit |
CN103929217A (en) * | 2014-05-05 | 2014-07-16 | 阳光电源股份有限公司 | Direct-current power line carrier communication transceiver, transmitter and receiver |
CN105049085A (en) * | 2015-08-20 | 2015-11-11 | 深圳市拉格朗日电子有限公司 | Power line communication system |
CN103929217B (en) * | 2014-05-05 | 2016-11-30 | 阳光电源股份有限公司 | Direct current power carrier communication transceiver, transmitter and receiver |
CN112350746A (en) * | 2020-09-28 | 2021-02-09 | 南京瑞贻电子科技有限公司 | Channel weakening detection system and method for power line carrier communication system |
CN113489165A (en) * | 2021-05-26 | 2021-10-08 | 广东高标电子科技有限公司 | Non-contact type rotating body electric energy transmission and communication device and electric moped |
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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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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103501190A (en) * | 2013-10-15 | 2014-01-08 | 东莞市华业新科电子科技有限公司 | Power line carrier communication circuit |
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 |
CN103929217A (en) * | 2014-05-05 | 2014-07-16 | 阳光电源股份有限公司 | Direct-current power line carrier communication transceiver, transmitter and receiver |
CN103929217B (en) * | 2014-05-05 | 2016-11-30 | 阳光电源股份有限公司 | Direct current power carrier communication transceiver, transmitter and receiver |
CN105049085A (en) * | 2015-08-20 | 2015-11-11 | 深圳市拉格朗日电子有限公司 | Power line communication system |
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 |
CN112350746A (en) * | 2020-09-28 | 2021-02-09 | 南京瑞贻电子科技有限公司 | Channel weakening detection system and method for power line carrier 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 |
CN113489165A (en) * | 2021-05-26 | 2021-10-08 | 广东高标电子科技有限公司 | Non-contact type rotating body electric energy transmission and communication device and electric moped |
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 |
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