CN205336276U - Based on many windings coupling inductance power line carrier communication system - Google Patents
Based on many windings coupling inductance power line carrier communication system Download PDFInfo
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- CN205336276U CN205336276U CN201521097831.1U CN201521097831U CN205336276U CN 205336276 U CN205336276 U CN 205336276U CN 201521097831 U CN201521097831 U CN 201521097831U CN 205336276 U CN205336276 U CN 205336276U
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- 238000004891 communication Methods 0.000 title claims abstract description 32
- 238000004804 winding Methods 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 title claims abstract description 16
- 238000010168 coupling process Methods 0.000 title claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
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Abstract
The utility model provides a based on many windings coupling inductance power line carrier communication system, this communication system of comprises a main equipment and many platforms equipment two parts, and a PLC module is installed respectively to the rear end of each subset cutout ware for each subset carries out electric power carrier wave communication with main equipment, main equipment is the output of converging after being connected in parallel by N strip branch road, the quantity of subset equals in the way N who connects in parallel in the main equipment and the system, PLC module of N strip parallel branch sharing in the main equipment for main equipment and each subset carry out electric power carrier wave communication, and PLC module in the main equipment has a N output winding, a N output winding respectively with main equipment in N strip parallel branch's input one -to -one continuous, the PLC module that only needs main equipment side just can realize the communication with many platforms equipment, simultaneously every link real -time working is guaranteed in not acceptor's equipment circuit breaker influence of opening and shutting, complexity that a plurality of PLC modules installations brought with cost is reduced.
Description
Technical field
This utility model relates to power line carrier technology field, is specifically related to a kind of based on Multiple coil coupling inductance power line carrier communication system。
Background technology
Power line carrier PLC (PowerLineCarrier) is a kind of technology utilizing transmission line of electricity to be transmitted in the way of carrier wave by signal。Power line carrier module utilizes PLC technology exactly, the transmitting-receiving of signal etc. is processed modularity, user provides standard RS485/RS232 interface。
When power system is applied; it is frequently encountered multiple stage subset and a main equipment confluxes; or relate to multiple stage subset and the problem of a main equipment communication; as shown in Figure 1; all having chopper between outfan and the main equipment input of each subset or have the guard block of chopper function, wherein the quantity of this guard block in main equipment is equal with the quantity of subset, electric lines of force A and B; represent any combination of two or two phase lines of AC three-phase line and the positive negative wire of direct current。
In order to make to be undertaken between each subset and main equipment communication and signal transmission by the mode of power line carrier, the general outfan that PLC module is arranged on each subset, the PLC module of main equipment side is arranged on the total outfan after each parallel branch of main equipment is confluxed, thus realizing the communication function of point to multi--point。
But after in multichannel branch road in parallel in main equipment, the chopper on any one road disconnects, the subset being connected with this branch road just cannot communicate with main equipment, it is clear that there is drawback。
In order to solve in Fig. 1 the drawback existing for traditional scheme, also have a kind of wide variety of system block diagram at present, as in figure 2 it is shown, with sub-unit side, PLC module is arranged on the outfan of each subset, the difference is that the front end of parallel branch chopper each in main equipment is separately installed with a PLC module。
The system block diagram of Fig. 2, although can avoid owing in branch road each in main equipment, chopper disconnects the communication disruption problem caused, but whole system needs to access multiple PLC module, thus adding system cost and installing complexity。
Summary of the invention
In order to overcome above-mentioned prior art Problems existing, the purpose of this utility model is in that to provide a kind of based on Multiple coil coupling inductance power line carrier communication system, reduces multiple PLC module and installs the complexity and cost brought。
For reaching above-mentioned purpose, this utility model be the technical scheme is that
A kind of based on Multiple coil coupling inductance power line carrier communication system, this communication system is made up of a main equipment and multiple stage subset two parts, and the outfan of each subset and main equipment adopt electric lines of force to be attached；Being respectively connected with chopper in described each subset or have the guard block of chopper function, in each subset, the rear end of chopper is separately installed with a PLC module, carries out power carrier communication for each subset and main equipment；Described main equipment is by output of confluxing after N bar branch circuit parallel connection, each parallel branch is all in series with a chopper or has the guard block of chopper function；Circuitry number N in parallel in described main equipment is equal with the quantity of subset in system；In described main equipment, N bar parallel branch shares a PLC module, power carrier communication is carried out for main equipment and each subset, PLC module in described main equipment has N number of output winding, and N number of output winding is connected with the input one_to_one corresponding of the N bar parallel branch in main equipment respectively。
Each number of turn exporting winding of the PLC module in described main equipment keeps consistent with inductance value。
Compared to the prior art relatively, this utility model possesses following advantage:
1) PLC module of a Multiple coil coupling inductance is installed in main equipment side, and winding is organized in the output of this PLC module more, and each winding is connected respectively to the input of each parallel branch, and main equipment side only needs a PLC module just can realize and the communication of multiple stage subset。The impact of not primary device chopper folding simultaneously, it is ensured that each of the links real time operation。
2) reduce multiple PLC module and the complexity and cost brought are installed。
Accompanying drawing explanation
Fig. 1 is tradition master-slave equipment power carrier communication system block diagram 1。
Fig. 2 is tradition master-slave equipment power carrier communication system block diagram 2。
Fig. 3 is conventional powerline carrier wave (PLC) module principle block diagram。
Fig. 4 is slave communication system block diagram of the present utility model。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail。
Fig. 3 is tradition PLC module schematic diagram, two winding coupled inductance L are used for isolating strong and weak electricity, and high-frequency carrier signal is transmitted by coupled modes, N2 side is connected with electric lines of force, N1 side is connected with the modulation /demodulation module of electric power line carrier chip, modulation /demodulation module mainly completes the filtering of carrier signal and receives and amplify transmission operation, and MCU mainly completes the data transmit-receive between RS485/RS232 bus and modulation /demodulation module。
As shown in Figure 4, this utility model is a kind of, and based on Multiple coil coupling inductance power line carrier communication system, this communication system is made up of a main equipment and multiple stage subset two parts, and the outfan of each subset and main equipment adopt electric lines of force to be attached；Being respectively connected with chopper in described each subset or have the guard block of chopper function, in each subset, the rear end of chopper is separately installed with a PLC module, carries out power carrier communication for each subset and main equipment；Described main equipment is by output of confluxing after N bar branch circuit parallel connection, each parallel branch is all in series with a chopper or has the guard block of chopper function；Circuitry number N in parallel in described main equipment is equal with the quantity of subset in system；In described main equipment, N bar parallel branch shares a PLC module, power carrier communication is carried out for main equipment and each subset, PLC module in described main equipment has N number of output winding, N number of output winding is connected with the input one_to_one corresponding of the N bar parallel branch in main equipment respectively, namely N2 winding is connected with the input of the parallel branch 1 in main equipment, N3 winding is connected with the input of the parallel branch 2 in main equipment, being sequentially connected with below, is connected with the input of the parallel branch N in main equipment until Nn+1 winding。
Each number of turn exporting winding of the PLC module in described main equipment keeps consistent with inductance value。
The means of communication based on Multiple coil coupling inductance power line carrier communication system described in the utility model are as follows:
Main equipment is to power carrier data flow path between subset: main equipment side data (containing purpose subset address) transmits carrier signal by the input port RS232/RS485 of the PLC module in main equipment, data are encoded processing and signal conversion by carrier signal by the MCU within PLC module, being then passed through modulation /demodulation module and carry out carrier modulation and amplification, high-frequency carrier signal is coupled on N2, N3 ... Nn+1 winding by the N1 winding finally by coupling inductance；Carrier signal passes through N group power line transmission on the coupling inductance of the PLC module of far-end N estrade equipment side, carrier signal is delivered to after modulation /demodulation module is filtered and is issued MCU by the coupling inductance of the PLC module of each subset, MCU converts carrier signal to digital signal by AD, further decoding becomes valid data, and it being sent to subset native processor by RS232/RS485 interface, every estrade equipment carries out information sifting process according to own device address with the data address received；
Subset 1 is to power carrier data flow path between main equipment:
The data (containing subset 1 address) of subset 1 transmit carrier signal by the input port RS232/RS485 of PLC module in subset 1, data are encoded processing and signal conversion by carrier signal by the MCU within PLC, it is then passed through modulation /demodulation module and carries out carrier modulation and amplification, finally by the N1 of coupling inductance/High-frequency carrier signal is coupled on N2 winding by winding；This carrier signal is on the N2 winding of the Multiple coil coupling inductance of power line transmission to the PLC module of far-end main equipment, it again is coupled on N1, N3 ... Nn+1 winding, wherein the signal on N1 winding is by being delivered to RS232/RS485 interface by MCU after modulation /demodulation resume module, eventually arrive at the native processor of main equipment side, owing to data contain subset 1 address, so main equipment effectively distinguishes data can come from subset 1；Meanwhile, can be transferred in the PLC module of subset 2 ... n through the signal of N3 ... Nn+1 winding, after PLC module processes, data be delivered to native processor, when finding that data come from subset 1, rather than during main equipment, abandon data and process；
Power carrier data flow path between subset 2, subset 3 ... subset N is similar with subset 1, so being not repeated to describe。
Claims (2)
1. one kind based on Multiple coil coupling inductance power line carrier communication system, it is characterised in that: this communication system is made up of a main equipment and multiple stage subset two parts, and the outfan of each subset and main equipment adopt electric lines of force to be attached；Being respectively connected with chopper in described each subset or have the guard block of chopper function, in each subset, the rear end of chopper is separately installed with a PLC module, carries out power carrier communication for each subset and main equipment；Described main equipment is by output of confluxing after N bar branch circuit parallel connection, each parallel branch is all in series with a chopper or has the guard block of chopper function；Circuitry number N in parallel in described main equipment is equal with the quantity of subset in system；In described main equipment, N bar parallel branch shares a PLC module, power carrier communication is carried out for main equipment and each subset, PLC module in described main equipment has N number of output winding, and N number of output winding is connected with the input one_to_one corresponding of the N bar parallel branch in main equipment respectively。
2. according to claim 1 based on Multiple coil coupling inductance power line carrier communication system: it is characterized in that: each number of turn exporting winding of the PLC module in described main equipment keeps consistent with inductance value。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521097831.1U CN205336276U (en) | 2015-12-24 | 2015-12-24 | Based on many windings coupling inductance power line carrier communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521097831.1U CN205336276U (en) | 2015-12-24 | 2015-12-24 | Based on many windings coupling inductance power line carrier communication system |
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| CN205336276U true CN205336276U (en) | 2016-06-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471477A (en) * | 2015-12-24 | 2016-04-06 | 特变电工西安电气科技有限公司 | Power line carrier communication system and method based on multi-winding coupling inductor |
| CN110311710A (en) * | 2019-06-05 | 2019-10-08 | 西北大学 | A kind of narrowband power-line carrier network controller |
-
2015
- 2015-12-24 CN CN201521097831.1U patent/CN205336276U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471477A (en) * | 2015-12-24 | 2016-04-06 | 特变电工西安电气科技有限公司 | Power line carrier communication system and method based on multi-winding coupling inductor |
| CN110311710A (en) * | 2019-06-05 | 2019-10-08 | 西北大学 | A kind of narrowband power-line carrier network controller |
| CN110311710B (en) * | 2019-06-05 | 2020-12-11 | 西北大学 | Narrow-band power carrier network controller |
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