CN203482198U - Dual-channel power line carrier communication module circuit - Google Patents
Dual-channel power line carrier communication module circuit Download PDFInfo
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- CN203482198U CN203482198U CN201320510059.6U CN201320510059U CN203482198U CN 203482198 U CN203482198 U CN 203482198U CN 201320510059 U CN201320510059 U CN 201320510059U CN 203482198 U CN203482198 U CN 203482198U
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Abstract
The utility model relates to a dual-channel power line carrier communication module circuit having two parallel carrier signal channels with work channels as f1 and f2. In signal reception process, the carrier signals are respectively filtered, and different carrier chips are employed for signal demodulation, and the demodulated signals are sent and processed by a one-chip microcomputer and outputted by a weak current interface circuit; in signal sending process, signals of the weak current interface are processed by the one-chip microcomputer and sent to the two parallel carrier signal channels, so carrier signals with work channels of f1 and f2 are formed, and the carrier signals are coupled to the power line and outputted through f1 and f2 carrier signal amplification circuits and a strong current interface circuit. The dual-channel power line carrier communication module circuit ensures excellent signal to noise ratio under a wide span channel, is excellent in immunity property, and can substantially improve reliability of the power line carrier communication. The dual-channel power line carrier communication module circuit can perform active effects in a national electrical network intelligent ammeter remote meter reading system, a household intelligence control system and the internet of things system with a plurality of parallel communication modes.
Description
Technical field
The utility model relates to communication technical field, is especially a kind of two-way Power Line Carrier Communication Module circuit and specifically application thereof.
Background technology
Power consumer distributes very extensive, and electrical network is the 4th Physical Network except telecommunications network, the Internet and cable television network.
Compare with other communications form (as bus 485, wireless, optical fiber etc.), power line carrier has does not need to repeat wiring, expansion easily, popularize the features such as easy, power line carrier communication is controlled and has also progressively been entered Smart Home control and Internet of Things field, become saving network investment, realize one of practical way of quickly networking.
But, because power line has impedance operator, attenuation characteristic and load noise interference characteristic etc., bring adverse effect to the reliability of power line carrier communication.The single modulation system of the many employings of existing power line carrier communication circuit, amplitude modulation, or the mode of frequency regulation of channel close proximity, or single-frequency phase modulation, once there is background noise near channel, will directly have influence on real time communication, thereby reduce the reliability of power line carrier communication.This is also the important problem that power line carrier technology extensive use faces.
Meanwhile, in present stage, various communication modes are also deposited, and respectively have its characteristic advantage and deficiency, how communication are organically combined, and improve whole structure, are also to compel problem to be solved.
Summary of the invention
The utility model object is to provide a kind of two-way Power Line Carrier Communication Module circuit, while parallel transmission two-way carrier signal in power line, simultaneously that the signal filtering of two-way is independent, obtain best signal to noise ratio, improve the reliability of power line carrier communication.
Another object of the present utility model is to use two-way Power Line Carrier Communication Module circuits built utility system.
For achieving the above object, the technical scheme of the utility model two-way Power Line Carrier Communication Module circuit is, this kind of two-way Power Line Carrier Communication Module circuit formation includes, carrier communication chip and communication channel configuration circuit, single-chip microcomputer (MCU), light current interface circuit, forceful electric power interface circuit, signal wave reception filtering circuit, carrier signal is amplified transtation mission circuit, it is characterized in that: carrier communication chip is two, the working channel that first carrier communication chip and communication channel configuration circuit form is f1, the working channel that the second carrier communication chip and communication channel configuration circuit form is f2, the input end of analog signal of first carrier communication chip connects f1 wave reception filtering circuit signal output part, f1 wave reception filtering circuit signal input part connects forceful electric power interface, the input end of analog signal of the second carrier communication chip connects f2 wave reception filtering circuit signal output part, and f2 wave reception filtering circuit signal input part connects forceful electric power interface, the analog signal output of first carrier communication chip and the second carrier communication chip amplifies transtation mission circuit signal input part with f1, f2 carrier signal and is connected, f1, f2 carrier signal are amplified transtation mission circuit signal output part and are connected forceful electric power interface circuit, first carrier communication chip is connected single-chip microcomputer with the digital signal end of the second carrier communication chip, and single-chip microcomputer connects light current interface circuit again.
For realizing above-mentioned another object, following three application systems that the utility model has used two-way Power Line Carrier Communication Module circuits built.
One of application system is that two-way Power Line Carrier Communication Module circuit application is copied and accepted and intelligent control system in national grid single-phase electric energy meter and three-phase electric energy meter data, this system is under same distribution transformer, the live wire of host country net single-phase electric energy meter is connected to A or B or C phase, ground wire is connected to N phase, the phase line of host country net three-phase electric energy meter is received respectively A, B, C phase line, zero line is connected to N phase, the A of state's net concentrator, B, C, N end is connected to respectively each phase line, in all single-phase electric energy meters, is furnished with single-phase two-way carrier communication module, in all three-phase electric energy meters, is furnished with three-phase two-way carrier communication module, in concentrator, is furnished with concentrator two-way carrier communication module, all two-way carrier communication module form telecommunication network by power circuit, realize the Real-time Collection of electric energy meter electric energy continuous data, transmission, the control signal of sending from concentrator also can arrive each electric energy meter simultaneously.
Two of application system is in household intelligent control system by two-way Power Line Carrier Communication Module circuit application, this system formation comprises three-phase power line, on-off controller, household electric appliances and intelligent interaction terminal, supply line accesses household electric appliances through on-off controller, described on-off controller consists of mains switch and control circuit and two-way Power Line Carrier Communication Module circuit, described intelligent interaction terminal is by showing that touch-screen (computer or mobile phone etc.) and two-way Power Line Carrier Communication Module circuit form, two-way Power Line Carrier Communication Module circuit in on-off controller and intelligent interaction terminal is realized carrier communication in three-phase power line.
Three of application system is by two-way Power Line Carrier Communication Module circuit and the combination of other communication mode, be built into an integrated communications system, this communication system formation includes power circuit, carrier signal turns plastic optical fiber signal circuit, carrier signal turns RS-485 signal circuit, carrier signal turns wireless signal circuit and intelligent interaction terminal, in carrier signal, turn in plastic optical fiber signal circuit, in carrier signal, turn in RS-485 signal circuit, in carrier signal, turn in wireless signal circuit, in intelligent interaction terminal, included two-way Power Line Carrier Communication Module circuit, all two-way Power Line Carrier Communication Module circuit are all connected to power circuit.
Advantage of the present utility model: overlap independently communication channel by two and communicate by letter simultaneously, realize communication complementary, strengthen reliability.By change peripheral communications channel assignment hardware circuit, the communication frequency of the present embodiment can be within the scope of 23KHz-312KHz many grades select.And two channel wave reception filtering circuits are separate, larger frequency apart from time, obtain best signal to noise ratio, significantly better than traditional frequency modulation, single-frequency phase modulation, single-frequency amplitude modulation etc. mode, further improve the reliability of self communicating by letter, in actual applications, there is stronger antijamming capability.
The utility model two-way power line carrier module circuit can adapt to the requirement of national grid to power line carrier communication.In national grid concentrator, join the utility model two-way carrier communication module circuit, can be only with a flush bonding processor and two ES0191 carrier communication chips, realize the independent communication of two channels.
The utility model two-way Power Line Carrier Communication Module circuit application, in modern house intelligent control system and modern Internet of things system, can obviously reduce the construction cost of system, and elevator system builds speed.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model two-way Power Line Carrier Communication Module circuit.
Fig. 2 is the utility model embodiment mono-: the remote copying of intelligent electric energy meter and control system schematic diagram.
Fig. 3 is single chip circuit figure in the utility model two-way Power Line Carrier Communication Module concentrator I type carrier communication module circuit.
Fig. 4 is first carrier communication chip and communication channel configuration circuit figure in the utility model two-way Power Line Carrier Communication Module circuit.
Fig. 5 is the second carrier communication chip and communication channel configuration circuit figure in the utility model two-way Power Line Carrier Communication Module circuit.
Fig. 6 is the utility model two-way Power Line Carrier Communication Module circuit mid band f1 and channel f2 accepts filter and signal amplifies transtation mission circuit figure.
Fig. 7 is concentrator light current interface circuit figure.
Fig. 8 is concentrator, three-phase meter coupling and forceful electric power interface circuit figure.
Fig. 9 is the utility model two-way Power Line Carrier Communication Module single-phase meter carrier communication module, single chip circuit figure in three-phase meter carrier communication module circuit.
Figure 10 is single-phase meter carrier communication module and three-phase meter carrier communication module light current interface circuit figure.
Figure 11 is single-phase meter carrier communication module forceful electric power interface circuit figure.
Figure 12 is the utility model embodiment bis-: two-way Power Line Carrier Communication Module circuit application is in household intelligent control system schematic diagram.
Figure 13 is the utility model embodiment tri-: two-way Power Line Carrier Communication Module circuit and other communication mode (as plastic fiber is communicated by letter, RS-485 communication, radio communication) conversion mutually, organically combines networking application schematic diagram.
Embodiment
Embodiment mono-:
The present embodiment is that two-way Power Line Carrier Communication Module circuit application is copied and accepted and Based Intelligent Control in national grid single-phase electric energy meter and three-phase electric energy meter data.
The present embodiment two-way Power Line Carrier Communication Module schematic block circuit diagram as shown in Figure 1.Carrier communication chip model in the present embodiment two-way Power Line Carrier Communication Module circuit is ES0191.
When data-signal sends: the single-chip microcomputer of carrier communication module is communicated by letter with terminal equipment by light current interface circuit, the data that acquisition will send, then the data-signal that single-chip microcomputer will transmit to two carrier chip transmission simultaneously, carrier chip receives after data, according to the channel separately of configuration, data-signal is converted to the carrier signal of this channel, complete modulated process, pass to f1, f2 signal amplification transtation mission circuit, carrier signal is amplified, by forceful electric power interface circuit, be coupled on power line, complete the data-signal process that sends.When carrier signal receives: the effective carrier signal on power line is coupled by forceful electric power interface circuit, after f1, f2 wave reception filtering circuit, obtain comparatively pure carrier signal of earning and send into two carrier chips and carry out demodulation.Carrier chip demodulates after data-signal, passes to single-chip microcomputer, and single-chip microcomputer is received after two paths of data signal, carries out intelligent decision, extracts correct data, loses wrong data or the data that arrive afterwards.
The present embodiment national grid single-phase electric energy meter and three-phase electric energy meter data are copied and accepted and intelligent control system forms and annexation as shown in Figure 2, under a platform becomes, the live wire of host country net single-phase electric energy meter is connected to A or B or C phase, ground wire is connected to N phase, the phase line of host country net three-phase electric energy meter is received respectively A, B, C phase line, A, B, C, N end that zero line is connected to N Xiang， state net concentrator are connected to respectively each phase line.In all single-phase electric energy meters, be furnished with single-phase two-way carrier communication module, in all three-phase electric energy meters, be furnished with three-phase two-way carrier communication module, in concentrator, be furnished with concentrator two-way carrier communication module.All two-way carrier communication module form telecommunication network by power circuit, realize Real-time Collection, the transmission of electric energy meter electric energy continuous data, and the control signal of sending from concentrator also can arrive each electric energy meter simultaneously.
In the present embodiment, fit over single-phase two-way carrier communication module in state's net single-phase electric energy meter, fit over the three-phase two-way carrier communication module in state's net three-phase electric energy meter and the two-way carrier communication module that fits in concentrator has essentially identical circuit form, except single chip circuit, light current interface circuit, forceful electric power interface circuit are distinguished to some extent, other circuit is basic identical.
In the present embodiment, the two-way Power Line Carrier Communication Module circuit of concentrator is constructed as follows, and single chip circuit (as shown in Figure 3), first carrier communication chip ES0191 and f1 channel assignment circuit (as shown in Figure 4), the second carrier communication chip ES0191 and f2 channel assignment circuit (as shown in Figure 5), f1f2 wave reception filtering circuit and f1f2 carrier signal are amplified transtation mission circuit (as shown in Figure 6) and light current interface circuit (as shown in Figure 7) and forceful electric power interface circuit (as shown in Figure 8).
In the present embodiment, the two-way Power Line Carrier Communication Module circuit of single-phase electric energy meter and three-phase electric energy meter is constructed as follows, single chip circuit (as shown in Figure 9), first carrier communication chip ES0191 and f1 channel assignment circuit (shown in accompanying drawing 4), the second carrier communication chip ES0191 and f2 channel assignment circuit (as shown in Figure 5), f1f2 wave reception filtering circuit and f1f2 carrier signal are amplified transtation mission circuit (as shown in Figure 6), light current interface circuit (as shown in Figure 10), for the forceful electric power interface circuit of the two-way power line carrier circuit of single-phase electric energy meter as shown in Figure 11, for the forceful electric power interface circuit of the two-way power line carrier circuit of three-phase electric energy meter as shown in Figure 8.
In the present embodiment, owing to having adopted the communication of two-way carrier system, channel span is large, channel f1 is 120KHz, and channel f2 is 270KHz, and two channels can independent communication, realize the communication of two-way message complementary sense, improved to greatest extent the Immunity Performance of communication, strengthened reliability.Coordinate again specific routing algorithm, for reliable communication provides stronger guarantee simultaneously.
Because the present embodiment two-way carrier communication mode has obviously improved the interference free performance of power line carrier communication, for Three Phase Carrier Based power line communication, completely can adopt three-phase transmission circuit is integrated together to mode; The reception of two carrier communication chips, transmission are merged in a coupling coil dexterously simultaneously, carrier signal is amplified to transtation mission circuit and unite two into one, can all make so whole circuit more succinct, reliable.
The on-the-spot real work flow process of the present embodiment (referring to accompanying drawing 2) is as follows:
1, after system powers on, concentrator sends automatic route instruction downwards by two channels simultaneously, the three-phase meter connecting in system, single-phase meter is successively according to the table number of self, finds in turn near self single-phase meter and three-phase meter that can reliable communication and reports concentrator to set up archives.
2, concentrator gets after archives, can copy needed ammeter data information according to each nodal information.
Embodiment bis-:
The present embodiment is that two-way Power Line Carrier Communication Module is applied to household intelligent control system, and this household intelligent control system formation and connected mode are as shown in Figure 12.It is in traditional electricity supplying and using system that this system forms, and increases on-off controller and power line-carrier intelligent interactive terminal.
In the present embodiment, at the front end of traditional household electric appliances such as conventional air conditioner, electric heater, electric cooker, respectively connect an on-off controller, each phase power line accesses each electrical appliance again through this on-off controller.These on-off controllers mainly consist of two parts circuit, first mains switch and control circuit, and it two is two-way Power Line Carrier Communication Module circuit.In the on-off controller of three phase supply electrical appliance (as air conditioner), is furnished with three-phase electric energy meter two-way Power Line Carrier Communication Module in similar embodiment one, two-way Power Line Carrier Communication Module in single-phase electric energy meter be furnished with similar embodiment one in the on-off controller of single phase power supply electrical appliance (as electric heater, electric cooker, television set etc.) in, power line carrier (PLC) intelligent interaction terminal comprises that data show and parameter setting function (can select liquid crystal flat-panel computer, mobile phone etc. mode) and two-way Power Line Carrier Communication Module circuit.
Between two-way Power Line Carrier Communication Module in the front end institute connecting valve controller of each electric terminal and the two-way Power Line Carrier Communication Module in PLC intelligent interaction terminal, through power line, realize each electrical appliance real-time Data Transmission to interactive terminal and show, simultaneously, user's command that arranges to each electric terminal parameter on interactive terminal arrives each on-off controller, and then each electric terminal is carried out in real time or program control.
PLC intelligent interaction terminal is as the information platform that crosses, on the one hand can be by each user's electricity consumption data information transfer to concentrator, last Macro or mass analysis, carry out energy efficiency management and control, as the interactive terminal of intelligence highly, can using mobile phone, computer, IPAD etc. as controlling interactive carrier on the other hand, user can the various household electrical appliance function modes of Long-distance Control, realize the automatic unlatching of household electrical appliance, close.
Embodiment tri-
The present embodiment is by two-way Power Line Carrier Communication Module circuit and the combination of other communication mode, is built into the hybrid network of information carrier more than, makes network configuration more flexible and changeable, is convenient to practical application, meets the needed Practical Communication System of Internet of Things.
The present embodiment Internet of Things Practical Communication System as shown in Figure 13.This communication system be take the major way that two-way power line carrier communication mode is signal transmission, and by signaling conversion circuit, realized the mutual conversion of following signal mode, be that carrier signal changes into plastic optical fiber signal, carrier signal turns RS-485 signal, carrier signal turns wireless signal etc., again plastic optical fiber signal is sent to plastic fiber communication equipment or intelligent interaction terminal, send RS-485 bus signals to RS-485 communication equipment, send wireless signal to Wireless Telecom Equipment.
The present embodiment communication system has realized different information carriers, different communication mode and communication equipment mixed networking, is particularly suitable for modern Internet of Things.Using the media type of two-way power line carrier communication mode as other communication mode in this hybrid network, given full play to the speciality of two-way power line carrier communication, promoted the reliability of this hybrid communication network, convenience, thus met more kinds of, more changeable, more complicated practical application request.
Claims (1)
1. a two-way Power Line Carrier Communication Module circuit, its formation includes, carrier communication chip and communication channel configuration circuit, single-chip microcomputer, light current interface circuit, forceful electric power interface circuit, signal wave reception filtering circuit, carrier signal are amplified transtation mission circuit, it is characterized in that: carrier communication chip is two, the working channel that first carrier communication chip and communication channel configuration circuit form is f1, and the working channel that the second carrier communication chip and communication channel configuration circuit form is f2; The input end of analog signal of first carrier communication chip connects f1 wave reception filtering circuit signal output part, f1 wave reception filtering circuit signal input part connects forceful electric power interface, the input end of analog signal of the second carrier communication chip connects f2 wave reception filtering circuit signal output part, and f2 wave reception filtering circuit signal input part connects forceful electric power interface; The analog signal output of first carrier communication chip and the second carrier communication chip amplifies transtation mission circuit signal input part with f1, f2 carrier signal and is connected, f1, f2 carrier signal are amplified transtation mission circuit signal output part and are connected forceful electric power interface circuit, first carrier communication chip is connected single-chip microcomputer with the digital signal end of the second carrier communication chip, and single-chip microcomputer connects light current interface circuit again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320510059.6U CN203482198U (en) | 2013-08-21 | 2013-08-21 | Dual-channel power line carrier communication module circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320510059.6U CN203482198U (en) | 2013-08-21 | 2013-08-21 | Dual-channel power line carrier communication module circuit |
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| CN203482198U true CN203482198U (en) | 2014-03-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457637A (en) * | 2013-08-21 | 2013-12-18 | 南京宇能仪表有限公司 | Double-channel power line carrier communication module circuit and application thereof |
| CN107104704A (en) * | 2017-06-12 | 2017-08-29 | 杭州快越科技有限公司 | A kind of electric power network element |
-
2013
- 2013-08-21 CN CN201320510059.6U patent/CN203482198U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457637A (en) * | 2013-08-21 | 2013-12-18 | 南京宇能仪表有限公司 | Double-channel power line carrier communication module circuit and application thereof |
| CN103457637B (en) * | 2013-08-21 | 2016-01-20 | 南京宇能仪表有限公司 | Double-channel power line carrier communication module circuit and application system thereof |
| CN107104704A (en) * | 2017-06-12 | 2017-08-29 | 杭州快越科技有限公司 | A kind of electric power network element |
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