CN106911362A - Three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology - Google Patents
Three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology Download PDFInfo
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- CN106911362A CN106911362A CN201710173091.2A CN201710173091A CN106911362A CN 106911362 A CN106911362 A CN 106911362A CN 201710173091 A CN201710173091 A CN 201710173091A CN 106911362 A CN106911362 A CN 106911362A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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Abstract
The invention discloses a kind of three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology, it includes the carrier signal central processing module, central control module, carrier wave termination power module, power transfer module, register module, three-phase electric energy meter interface module, carrier signal modulation and demodulation module, the signal amplification module that are located on same wiring board.The power transfer module connects 380V three-phase circuits；The power transfer module electrically connects central control module；Central control module electrically connects carrier signal central processing module；Central control module electrical connection register module, three-phase electric energy meter interface module；The carrier signal central processing module is connected signal amplification module with demodulation module by signal modulation, and signal amplification module is connected with carrier wave termination power module；Carrier wave termination power is connected with 220V/380V circuits.
Description
Technical field
The present invention relates to a kind of three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology.
Background technology
The construction of power user power consumption information acquisition system is one of current State Grid Corporation of China's emphasis implementation.Country
Grid company claimed resident's electricity remote gathering system of construction " full collection, full pre-payment, all standing " in 2008, and
Propose the imagination of construction " intelligent grid ".Current countries in the world are also all in actively development or extensive development power information collection phase
System Construction is closed, and obtains certain effect." power user power consumption information acquisition system " leads to extensively using power wire broadband carrier
The scheme that letter technology and Fibre Optical Communication Technology are combined, builds high speed, stabilization, the communication letter of safety between supply side and customer side
Breath platform, system main website and higher management software are developed using magnanimity information processing technology and Real-Time Databases System Technique, are realized
The management and service of " information-based, automation, interactive ".
Based on this, the present invention researches and develops a kind of three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology.
The content of the invention
It is an object of the invention to provide a kind of three-phase meter bandwidth carrier communication mould based on high-performance carrier Control technology
Block, the object of the present invention is achieved like this：The described communication of the three-phase meter bandwidth carrier based on high-performance carrier Control technology
Module includes the carrier signal central processing module, central control module, the carrier wave termination power mould that are located on same wiring board
Block, power transfer module, register module, three-phase electric energy meter interface module, carrier signal modulation and demodulation module, signal
Amplification module etc..The power transfer module connects 380V three-phase circuits；The power transfer module electrical connection center control mould
Block；Central control module electrically connects carrier signal central processing module；Central control module electrical connection register module, three-phase electricity
Can table interface module；The carrier signal central processing module is connected signal with demodulation module and amplifies mould by signal modulation
Block, signal amplification module is connected with carrier wave termination power module；Carrier wave termination power is connected with 380V circuits;It is described based on height
The three-phase bandwidth carrier communication module of performance carrier Control technology is entered with the concentrator broadband connections unit installed in transformer side
Row communication connection and bidirectional transmission of digital signal, install in the bandwidth carrier centralized meter-reading system concentrator that subscriber board transformation side is installed
There is bandwidth carrier communication module as signal head end, the bandwidth carrier communication mould in platform area three-phase electric energy meter module slot
Block carries out power wire broadband carrier communication connection between head end and terminal as terminal by orthogonal frequency division multiplexer,
So as to realize long range carriers data transfer.
Compared with the prior art, the present invention makes power department power information acquisition system realize long distance in low-voltage platform area side
Live meter is realized in high-speed wideband carrier data communication function, and the energy automatic meter reading system construction of multiple-in-one
High speed carrier centralized automatic meter-reading function.The present invention be more particularly directed to realize low pressure residential electricity information by power line carrier communication mode
Base needed for the electrical energy collecting device of acquisition system user side and the meter information collecting device of remote auto meter reading system
In the bandwidth carrier communication unit of high-performance carrier Control technology;The power wire broadband carrier of the high-performance carrier Control of use is adjusted
Technology processed, signal suppresses control technology, and communication physical bandwidth is up to 4MBps;Improved as one kind, the central control module
The carrier signal that is electrically connected central processing module, central control module can realize carrier wave enhancing algorithm and realize Long-range Data Transmission
Link algorithm.
Advantages of the present invention：The bandwidth carrier communicator of the frequency division multiplex with particular algorithm, its function is：
1st, the networking authentication mechanism of module
Terminal module possesses the ability of automatic identification certification when being communicated with headend module, can refuse connecing for illegal terminal module
Enter, it is ensured that the terminal module of only legal access could set up the communication link of safety with headend module.
2nd, read electric meter address and report mechanism
Carrier module sends Address requests frame, the address information of reading power meters after delayed about 3 seconds to CPU.Wait
Electric energy meter response delay time 1 second.Then result " address of electric energy meter " will be read to be sent to concentrator or main website.
3rd, automatic network-building mechanism
Headend module can be created and safeguard a communication network.The establishment and maintenance of this network are without manual intervention.Have
The characteristics such as autonomous management, dynamic.1000 terminal connection numbers can be supported, maximum can support 15 grades of relayings.Support multiplex addressing work(
Can be with dynamic and static routing function.
Autonomous management：When electricity on a carrier module and when being registered, can be according to current power network environment situation, certainly
It is fixed whether to set up direct or indirect communication link with headend module.If the latter, network can be terminal module selection one
Individual suitable intermediate node module is communicated as relaying with headend module.
Dynamic：Network can be that terminal module selects best communication link according to current power network environment, and make corresponding
Change.Such as：Current hop node is no longer available, and network can select other via node modules as its relaying.Should
Function causes that whole communication network may not have different tree topology in the same time.
4th, data encryption mechanism
Encryption method can support AES/3DES/DES encryption mechanisms.During terminal module is reached the standard grade, network encryption key is obtained,
The acquisition of key needs encryption.After terminal module is reached the standard grade, all of data communication needs to be encrypted by AES.
5th, module supports 4 grades of QoS, meets the QoS requirement of different business.
Brief description of the drawings
Fig. 1 is firmware framework figure of the invention.
Fig. 2 is communication interface logical architecture figure.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in figure 1, the three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology of the invention includes being located at
Carrier signal central processing module, central control module, carrier wave termination power module on same wiring board, Power convert mould
Block, register module, three-phase electric energy meter interface module, carrier signal modulation and demodulation module, signal amplification module etc..Institute
State power transfer module connection 380V three-phase circuits；The power transfer module electrically connects central control module；Center control mould
Block electrically connects carrier signal central processing module；Central control module electrical connection register module, three-phase electric energy meter interface circuit
Module；The carrier signal central processing module is connected signal amplification module with demodulation module by signal modulation, and signal amplifies
Module is connected with carrier wave termination power module；Carrier wave termination power is connected with 220V/380V circuits.Become what side was installed in subscriber board
Bandwidth carrier communication module is installed as signal head end in bandwidth carrier centralized meter-reading system concentrator, installed in electric energy table side（Bag
Include three-phase intelligent electric-energy meter, three-phase intelligent electric-energy meter, collector）Bandwidth carrier communication module as terminal, head end and terminal
Between power wire broadband carrier communication is carried out by the orthogonal frequency division multiplexer of particular algorithm, so as to realize remote load
Ripple data transfer.
Described user's electric energy meter and bandwidth carrier centralized meter-reading system concentrator are prior art.
The a width of 4MBps of communication physical band of described bandwidth carrier communication module.Bandwidth carrier centralized meter-reading system concentrator with
Lower abbreviation " concentrator ", bandwidth carrier communication collector is hereinafter referred to as " collector ".
System architecture and function
The bandwidth carrier centralized meter-reading system that bandwidth carrier communication module based on high-performance carrier Control technology builds, with tree-like logical
News framework.The features such as being reported automatically with high bandwidth, automatic network-building, automatic relay, electric meter address.
1st, group-network construction
It is similar with the carrier communication scheme on ordinary meaning, the headend module of this programme（That is bandwidth carrier communication module-head end）
Insertion concentrator side, the insertion of ammeter module collector or three-phase intelligent ammeter side（That is bandwidth carrier communication module-terminal）.Both sides
Communicated by power line carrier signal.
2nd, system firmware
As shown in figure 1, the firmware of present invention design is with built modular, firmware includes multiple submodule.Each submodule is also wrapped
Containing respective submodule.Some modules are present in bandwidth carrier communication module-terminal as general module and bandwidth carrier communicates
In the firmware of module-head end, some are existed only in bandwidth carrier communication module-head end, and some exist only in bandwidth carrier and lead to
In letter module-terminal.These modules mainly include：MAC access control modules, PL PHY drive modules, UART PHY drive mould
Block, Ethernet drive module, communication abstraction layer module, convergence module, bridge modules, application management module etc..
3rd, MAC access controls
CSMA/CA
MAC layer from upper layer application receive Medium Access Control (MAC) Service Data Unit (MSDU) message, after segmented and encryption by data with
Medium Access Control (MAC) Protocol Data Unit (MPDU) mode submits to physical layer.
MAC layer provides the channel access method that data transfer is used, including CSMA and TDMA both of which.CSMA uses load
Ripple monitoring/conflict avoidance（CSMA/CA）Mechanism access channel.
CSMA/CA mechanism realizes Line sharing using conflict avoidance and busy random back mode.It is right that system can be distinguished
Treat high-priority service, the multiple priority of CSMA/CA definition.
Data sectional and restructuring are supported, data transmission efficiency is improved.
CSMA/CA mechanism should meet IEEE 1901-2010 related requests.
4th, prioritized contention
Carrier module is parsed in timeslice in priority, by the priority of Special Statement itself data to be sent.The special sound
Clear signal can effectively overcome many device signals to disturb and transmission delay problem through especially modulation.
5th, random collision avoidance mechanism
Random collision avoidance mechanism should be used in combination with prioritized contention.
By prioritized contention, the only equipment of limit priority obtains data is activation competitive opportunity.Obtain and send competition machine
When data are sent, if detecting circuit conflict, the random time that retracts reattempts transmission to the equipment of meeting.The random time
Span is from 0 to competition window size.Competition window size can be adjusted according to network service traffic and service priority
It is whole.
6th, robust mode
To improve transmitting of the channel under noisy network environment, the robust mode that this programme is defined using ofdm standards.
Using robust mode, many parts of the copy content that will be transmitted is transmitted over multiple channels respectively.Even if there is some channels
Because of noise problem so that data transmission fails, as long as there is a channel good, data are most successfully sent to receiving terminal at last.
7th, bridge
Bridge is to realize MAC layer data are exchanged with each other between two different type networks effective ways.In this programme, due to width
Band carrier module head end is connected to Ethernet and power network simultaneously, so bandwidth carrier module head end must have bridge function,
And bandwidth carrier modular terminal does not need the function.Bridge must support at least 32 MAC Address of bridge joint, use source address
By algorithm.Teach how to realize bridge function with bandwidth carrier module head end as description object below.
8th, bridge function description
Bandwidth carrier module head end has the ability of study source address.It is local to need to safeguard " local bridge coil a purpose
MAC Address form "（LBDAT）, for preserving the MAC Address learnt by source address, that is, preserve the MAC ground in Ethernet
Location.This table needs other bandwidth carrier modular terminals being regularly sent in AVLN.
When bandwidth carrier module head end receives the message from power network, it is necessary to forward the message to Ethernet, when and
Only when：
The target MAC (Media Access Control) address of the message is broadcast or multicast address
The target MAC (Media Access Control) address of the message is unicast address, and it is not the MAC of certain the bandwidth carrier modular terminal in power network
Address.
When bandwidth carrier module head end receives the message from Ethernet, it is necessary to forward the message to power network, when and
Only when：
The target MAC (Media Access Control) address of the message is broadcast or multicast address, and it is broadcast TEI that bandwidth carrier module head end sends purpose TEI
Message.
The target MAC (Media Access Control) address of the message is unicast address, and it is the MAC of certain bandwidth carrier modular terminal in power network
Address, bandwidth carrier module head end sends the message of the TEI that purpose TEI is this bandwidth carrier modular terminal.
The target MAC (Media Access Control) address of the message is unicast address, and it is unknown, and bandwidth carrier module head end sends purpose
TEI is the message for broadcasting TEI.
The target MAC (Media Access Control) address of the message is unicast address, and it is the MAC Address in another bridge coil, and broadband carries
In the message that ripple module head end sends, purpose TEI is the TEI of the bandwidth carrier modular terminal for bridging the network.
Due to the network without bridge joint, so it does not have LBDAT, its LBDAT is bandwidth carrier modular terminal in other words
It is empty.
9th, module firmware interface description
According to different application scenarios, system can be connected with different transmission mediums, including power line, ethernet line, serial ports
（UART、485）Line etc..So, it is desirable to corresponding packet transceiver module.For so many related to particular medium
Packet transceiver module, we can take out identical part, form " abstract communication interface ".So, system upper strata is not
With the specific customizing messages for understanding transmission medium, it is possible to carry out simple data transmit-receive work.And the behaviour of specific transmission medium
Make part, treatment is responsible for by each drive module.Fig. 2 describes the logical architecture of communication interface.
Bandwidth carrier DCOM unit characteristic based on high-performance carrier Control technology is：
1st, physical layer peak rate 14Mbit/s；Application layer peak rate 3Mbit/s；Chip operation power consumption≤200mW.
2nd, operating frequency range 2MHz~12MHz；Using special OFDM technologies, subcarrier support BPSK, QPSK,
8QAM, 16QAM, 64QAM are modulated；Subcarrier adaptive modulation technology；Support FEC and CRC functions, possess powerful denoising and
Error correcting capability, for the high robust frame structure of Complex Power channel design.
3rd, ITU-G.9972 ISP agreements are supported, is coexisted with family InterWorking Equipment；Support that many changes coexist, avoid crosstalk
Situation occurs.
Electric line carrier communication technology, is a kind of communication technology carried out data transmission by electric wire.Carrier communication refers to is
By the use of existing power network as the Transfer Medium of signal, power network is set to carry out data signal transmission while electric power is transmitted.This
Kind of mode can effectively be monitored and controlled power equipment in power network, instrument and household electrical appliance.Meanwhile, power line carrier technology
Plug and play, substantially increases production, work and life efficiency, has largely saved cable wiring manufacture cost；Above-mentioned kind
The feature of kind and advantage make its other communication modes that compare even better.
This three-phase meter bandwidth carrier communication module module based on high-performance carrier Control technology has a MII interface,
Support the extension of 10/100Mbit/s networks；One SPI Master/Slave interface；Four UART interfaces；One infrared interface；
One I2C interface.
The communication physical layer transmission bandwidth of this three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology
It is 2M~12M, physical layer transmission rate is 150Kbit/s~14Mbit/s；Application layer speed 35Kbit/s~4Mbit/s.Carry
Ripple signal transmission distance is not less than 300 meters.
(it is unspecified herein to be prior art, therefore do not launch to repeat herein, those skilled in the art of the present technique's root
The purpose of the present invention can be realized according to being described above).
Claims (3)
1. the three-phase meter bandwidth carrier communication module of high-performance carrier Control technology is based on, it is characterised in that：It is described based on height
The three-phase bandwidth carrier communication module of performance carrier Control technology includes the carrier signal center being located on same wiring board
Reason module, central control module, carrier wave termination power module, power transfer module, register module, three-phase electric energy meter interface electricity
Road module, carrier signal modulation and demodulation module, signal amplification module;Power transfer module connects 380V three-phase circuits；It is described
Power transfer module electrically connects central control module；Central control module electrically connects carrier signal central processing module；Center control
Molding block electrical connection register module, three-phase electric energy meter interface module；Carrier signal central processing module is adjusted by signal
System is connected signal amplification module with demodulation module, and signal amplification module is connected with carrier wave termination power module；Carrier wave termination power
It is connected with 220V/380V circuits;The described three-phase bandwidth carrier communication module based on high-performance carrier Control technology with install
It is communicatively coupled and bidirectional transmission of digital signal in the concentrator broadband connections unit of transformer side, in subscriber board transformation side peace
Bandwidth carrier communication module is installed as signal head end in the bandwidth carrier centralized meter-reading system concentrator of dress, installed in platform area three-phase
Bandwidth carrier communication module in electric energy meter module slot passes through Orthodoxy Frequency Division Multiplex as terminal between head end and terminal
Technology carries out power wire broadband carrier communication connection.
2. the three-phase bandwidth carrier communication module based on high-performance carrier Control technology according to claim 1, its feature
It is that described three-phase bandwidth carrier communication module has a MII interface, supports the extension of 10/100Mbit/s networks；One
SPI Master/Slave interfaces；Four UART interfaces；One infrared interface；One I2C interface.
3. the three-phase bandwidth carrier communication module based on high-performance carrier Control technology according to claim 1, its feature
It is that the communication physical layer transmission bandwidth of described bandwidth carrier communication module is 2M~12M, and physical layer transmission rate is
150Kbit/s~14Mbit/s；Application layer speed 35Kbit/s~4Mbit/s, carrier signal transmission distance is not less than 300 meters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710173091.2A CN106911362A (en) | 2017-03-22 | 2017-03-22 | Three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710173091.2A CN106911362A (en) | 2017-03-22 | 2017-03-22 | Three-phase meter bandwidth carrier communication module based on high-performance carrier Control technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110830082A (en) * | 2018-08-10 | 2020-02-21 | 北京和信瑞通电力技术股份有限公司 | Power line broadband carrier concentrator |
| CN110995320A (en) * | 2019-12-27 | 2020-04-10 | 国网河北省电力有限公司电力科学研究院 | Three-phase electricity consumption data acquisition method and device based on broadband carrier communication |
| CN112118029A (en) * | 2020-08-20 | 2020-12-22 | 广东电网有限责任公司佛山供电局 | Transformer substation three-mode communication system based on broadband power carrier |
| CN112687093A (en) * | 2020-10-27 | 2021-04-20 | 广东电网有限责任公司广州供电局 | Low-voltage centralized meter reading method and device |
| CN114200201A (en) * | 2021-11-30 | 2022-03-18 | 深圳市国电科技通信有限公司 | Miniaturized electric energy metering device based on HPLC communication technology |
-
2017
- 2017-03-22 CN CN201710173091.2A patent/CN106911362A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110830082A (en) * | 2018-08-10 | 2020-02-21 | 北京和信瑞通电力技术股份有限公司 | Power line broadband carrier concentrator |
| CN110830082B (en) * | 2018-08-10 | 2022-02-22 | 北京和信瑞通电力技术股份有限公司 | Power line broadband carrier concentrator |
| CN110995320A (en) * | 2019-12-27 | 2020-04-10 | 国网河北省电力有限公司电力科学研究院 | Three-phase electricity consumption data acquisition method and device based on broadband carrier communication |
| CN112118029A (en) * | 2020-08-20 | 2020-12-22 | 广东电网有限责任公司佛山供电局 | Transformer substation three-mode communication system based on broadband power carrier |
| CN112687093A (en) * | 2020-10-27 | 2021-04-20 | 广东电网有限责任公司广州供电局 | Low-voltage centralized meter reading method and device |
| CN112687093B (en) * | 2020-10-27 | 2022-07-08 | 广东电网有限责任公司广州供电局 | Low-voltage centralized meter reading method and device |
| CN114200201A (en) * | 2021-11-30 | 2022-03-18 | 深圳市国电科技通信有限公司 | Miniaturized electric energy metering device based on HPLC communication technology |
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