CN109120308A - A kind of power line carrier data communication system - Google Patents

Abstract

Translated fromChinese

本发明公开了一种电力线载波数据通讯系统，能够通过将电力载波数据拆分编码，解决了电力线上较强的干扰和噪声时破坏电力线上载波通信数据，导致载波信号的实时通信率不高，通信可靠性不好的问题，使得工作可靠，抗干扰能力更强；排除了电力载波通信的电力干扰，并且加快了数据的传输速度，适合远距离载波数据传输，自动化程度高，工作性能好。

The invention discloses a power line carrier data communication system, which can solve the problem of damaging the power line carrier communication data when the power line is strong interference and noise by splitting and coding the power carrier data, resulting in a low real-time communication rate of the carrier signal. The problem of poor communication reliability makes the work reliable and the anti-interference ability is stronger; the power interference of the power carrier communication is eliminated, and the data transmission speed is accelerated. It is suitable for long-distance carrier data transmission, with a high degree of automation and good work performance.

Description

A kind of power line carrier data communication system

Technical field

A kind of electric power carrier communication technology field of the present invention, and in particular to power line carrier data communication system.

Background technique

In current electric system, the advantage of power-line carrier communication is well-known, it be one it is ready-made,The most wide communication channel of coverage area can form intelligent communication network in the case where spending least situation；But on power lineThe big feature of highly attenuating, strong noise, time variation is the huge technology barrier of voltage power-line carrier communication technology again；In addition, lowThe application of piezoelectricity line of force carrier technology is limited by indexs such as carrier frequency, transmitting amplitude, harmonic pollutions again, is made in systemCommunication distance between node greatly shortens, and therefore, the concept of relaying is introduced in low voltage power line carrier mechanics of communication；The use of relaying enhances node anti-attenuation ability, improves the communication efficiency of system, but also makes being selected to for relaying simultaneouslyOne new technological difficulties, that is, the technological difficulties of networking technology.

Existing electric line carrier communication power consumption is larger, and is easy to appear interference, interference and noise on power line, willDestroy the carrier communication data on power line, influence the stability that carrier data on power line communicates, make power line carrier, PLC withoutMethod carries out；Therefore in electric power carrier communication technology field, it is reliable and stable how to improve communication of the carrier data on power lineProperty and remote transmission be to need urgent problem to be solved in electric power carrier communication technology field.

Summary of the invention

In view of the shortcomings of the prior art, the present invention provides a kind of power line carrier data communication system.

To achieve the above object, the present invention adopts the following technical scheme: a kind of power line carrier data communication system, includingPower module, single-chip microcontroller, data split module, carrier communication modulation /demodulation module, emitter and reception device；The power supplyModule include exchange AC, filter circuit, current rectifying and wave filtering circuit, Power Exchange circuit, rectifying and wave-filtering output circuit, protection circuit andExport Vo, the exchange AC, filter circuit, current rectifying and wave filtering circuit, Power Exchange circuit, rectifying and wave-filtering output circuit, protection electricityRoad and output Vo are sequentially connected, and the power module is connected to modules and provides sustainable power supply for other modules；It is describedSingle-chip microcontroller, which can be used for transmitting signal, to be controlled, and guarantees the correctness of carrier data, and the single-chip microcontroller is connected to data fractionationModule；It includes split cells and data encoding unit that the data, which split module, and the split cells tears each carrier data openIt is divided into multiple small datas, the data encoding unit encodes each small data, and the data split module and are connected to loadWave communicates modulation /demodulation module；The carrier data split can be modulated and be incited somebody to action by the carrier communication modulation /demodulation moduleReceived data are modulated, and the carrier communication modulation /demodulation module is connected on emitter；The emitter includes:Carrier generator I, modulation route I, amplifying circuit I, signal coupling unit I, filter circuit I conciliate line transfer road I；The carrier wave producesRaw device I, modulation route I, amplifying circuit I, signal coupling unit I, filter circuit I reconciliation line transfer road I are sequentially connected；The receptionDevice includes: carrier generator II, modulation route II, amplifying circuit II, signal coupling unit II, filter circuit II and demodulationRoute II；The carrier generator II, modulation route II, amplifying circuit II, signal coupling unit II, filter circuit II and demodulationRoute II is sequentially connected；Carrier generator is modulated route, is used for transducing signal and high frequency carrier for generating high frequency carrierCoupling, amplifying circuit, be used for amplified signal, signal coupling unit, for the carrier signal of power amplification to be coupled to power line,Filter circuit demodulates route for reducing the noise jamming in route, described for transducing signal to be isolated with high frequency carrierEmitter is connect with reception device, and the reception device is connected in carrier communication modulation /demodulation module.

Further, the single-chip microcontroller is PLC single-chip microcontroller or AVR single chip.

By adopting the above technical scheme, beneficial effects of the present invention:

The present invention can be by by power carrier data disassembled coding, solving stronger interference and destruction when noise on power lineCarrier communication data on power line cause the real time communication rate of carrier signal not high, the bad problem of communication reliability, so that workMake reliably, anti-interference ability is stronger；The electric power interference of power line carrier, PLC is eliminated, and accelerates the transmission speed of data,It is suitble to the transmission of long range carriers data, high degree of automation, favorable working performance.

Detailed description of the invention

Fig. 1 is a kind of structural schematic block diagram of power line carrier data communication system in the present invention.

Specific embodiment

To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference toSpecific embodiment, the present invention is further explained:

Therefore, claimed is not intended to limit to the detailed description of the embodiment of the present invention provided in the accompanying drawings belowThe range of invention, but it is merely representative of selected embodiment of the invention, based on the embodiments of the present invention, ordinary skillPersonnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang YiIt is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

Term " first ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relatively heavyThe property wanted.

In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting "," installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or oneConnect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediaryBe connected, can be the connection inside two elements, for the ordinary skill in the art, can be understood with concrete condition onState the concrete meaning of term in the present invention.

As shown in connection with fig. 1: a kind of power line carrier data communication system, including power module 1, single-chip microcontroller 2, data are splitModule 3, carrier communication modulation /demodulation module 4, emitter 5 and reception device 6；The power module 1 includes exchange AC11, filterWave circuit 12, current rectifying and wave filtering circuit 13, Power Exchange circuit 14, rectifying and wave-filtering output circuit 15, protection circuit 16 and outputVo17, the exchange AC11, filter circuit 12, current rectifying and wave filtering circuit 13, Power Exchange circuit 14, rectifying and wave-filtering output circuit15, circuit 16 and output Vo17 is protected to be sequentially connected, the power module 1 is connected to modules and provide for other modules canConstant current source；The single-chip microcontroller 2, which can be used for transmitting signal, to be controlled, and guarantees the correctness of carrier data, the single-chip microcontroller 2It is connected to data and splits module 3；It includes split cells 31 and data encoding unit 32, the fractionation that the data, which split module 3,Each carrier data is split as multiple small datas by unit 31, and the data encoding unit 32 encodes each small data,The data split module 3 and are connected to carrier communication modulation /demodulation module 4；The carrier communication modulation /demodulation module 4 can incite somebody to actionThe carrier data split is modulated and is modulated received data, and the carrier communication modulation /demodulation module 4 connectsOnto emitter 5；The emitter 5 includes: carrier generator I51, modulation route I52, amplifying circuit I53, signal couplingIt closes unit I54, filter circuit I55 and conciliates line transfer road I56；The carrier generator I51, modulation route I52, amplifying circuit I53,Signal coupling unit I54, filter circuit I55 reconciliation line transfer road I56 are sequentially connected；The reception device 6 includes: that carrier wave generatesDevice II61, modulation route II62, amplifying circuit II63, signal coupling unit II64, filter circuit II65 conciliate line transfer road II66；The carrier generator II61, modulation route II62, amplifying circuit II63, signal coupling unit II64, filter circuit II65 andDemodulation route II66 is sequentially connected；Carrier generator I51 and carrier generator II61 is used to generate high frequency carrier, modulation linesRoad I52 and modulation route II62, is used to couple transducing signal with high frequency carrier, amplifying circuit I53 and amplifying circuit II63,It is used to amplified signal, signal coupling unit I54 and signal coupling unit II64, is used to the carrier signal coupling of power amplificationPower line, filter circuit I55 and filter circuit II65 are closed, for reducing the noise jamming in route, demodulates route I56 reconciliationLine transfer road II66, for transducing signal to be isolated with high frequency carrier, the emitter 5 is connect with reception device 6, the receptionDevice 6 is connected in carrier communication modulation /demodulation module 4.

Further, the single-chip microcontroller 2 is PLC single-chip microcontroller or AVR single chip.

The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hairBright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention sideThe protection scope of case.

Claims (2)

Translated fromChinese

1.一种电力线载波数据通讯系统，其特征在于：包括电源模块、单片机、数据拆分模块、载波通讯调制解调模块、发射装置和接收装置；所述电源模块包括交流AC、滤波电路、整流滤波电路、功率交换电路、整流滤波输出电路、保护电路和输出Vo，所述交流AC、滤波电路、整流滤波电路、功率交换电路、整流滤波输出电路、保护电路和输出Vo依次连接，所述电源模块连接到各个模块并为其他模块提供可持续电源；所述单片机可用于对信号传输进行控制，保证载波数据的正确性，所述单片机连接到数据拆分模块；所述数据拆分模块包括拆分单元和数据编码单元，所述拆分单元将每个载波数据拆分为多个小数据，所述数据编码单元对各个小数据进行编码，所述数据拆分模块连接到载波通讯调制解调模块；所述载波通讯调制解调模块可以将已拆分的载波数据进行调制并将接收的数据进行调制，所述载波通讯调制解调模块连接到发射装置上；所述发射装置包括：载波产生器I、调制线路I、放大线路I、信号耦合单元I、滤波线路I和解调线路I；所述载波产生器I、调制线路I、放大线路I、信号耦合单元I、滤波线路I和解调线路I依次连接；所述接收装置均包括：载波产生器II、调制线路II、放大线路II、信号耦合单元II、滤波线路II和解调线路II；所述载波产生器II、调制线路II、放大线路II、信号耦合单元II、滤波线路II和解调线路II依次连接；载波产生器，用于生成高频载波，调制线路，用于将传感信号与高频载波耦合，放大线路，用于放大信号，信号耦合单元，用于将功率放大的载波信号耦合到电力线，滤波线路，用于降低线路中的噪声干扰，解调线路，用于将传感信号与高频载波隔离，所述发射装置与接收装置连接，所述接收装置连接到载波通讯调制解调模块上。1. a power line carrier data communication system, is characterized in that: comprise power supply module, single-chip computer, data splitting module, carrier communication modulation and demodulation module, transmitting device and receiving device; Described power supply module comprises alternating current AC, filter circuit, rectifier Filter circuit, power exchange circuit, rectifier filter output circuit, protection circuit and output Vo, the AC AC, filter circuit, rectifier filter circuit, power exchange circuit, rectifier filter output circuit, protection circuit and output Vo are connected in sequence, the power supply The module is connected to each module and provides sustainable power for other modules; the single-chip microcomputer can be used to control the signal transmission to ensure the correctness of the carrier data, and the single-chip microcomputer is connected to the data splitting module; the data splitting module includes a splitting module. A division unit and a data encoding unit, the splitting unit splits each carrier data into a plurality of small data, the data encoding unit encodes each small data, and the data splitting module is connected to the carrier communication modulation and demodulation module; the carrier communication modulation and demodulation module can modulate the split carrier data and modulate the received data, and the carrier communication modulation and demodulation module is connected to the transmitting device; the transmitting device includes: a carrier wave generator The carrier generator I, the modulation circuit I, the amplification circuit I, the signal coupling unit I, the filtering circuit I and the demodulation circuit I; the carrier generator I, the modulation circuit I, the amplifying circuit I, the signal coupling unit I, the filtering circuit I and the demodulation circuit I; The modulation lines I are connected in sequence; the receiving devices all include: a carrier generator II, a modulation circuit II, an amplification circuit II, a signal coupling unit II, a filtering circuit II and a demodulation circuit II; the carrier generator II, the modulation circuit II , Amplifying circuit II, signal coupling unit II, filtering circuit II and demodulation circuit II are connected in sequence; carrier generator is used to generate high-frequency carrier wave, modulation circuit is used to couple sensing signal with high-frequency carrier wave, amplifying circuit, Used to amplify the signal, the signal coupling unit is used to couple the power amplified carrier signal to the power line, the filter line is used to reduce the noise interference in the line, the demodulation line is used to isolate the sensing signal from the high frequency carrier, so The transmitting device is connected to the receiving device, and the receiving device is connected to the carrier communication modulation and demodulation module.2.根据权利要求1所述一种电力线载波数据通讯系统，其特征在于：所述单片机为PLC单片机或AVR单片机。2 . A power line carrier data communication system according to claim 1 , wherein the single-chip microcomputer is a PLC single-chip microcomputer or an AVR single-chip computer. 3 .