CN106961290A - I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology - Google Patents
I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology Download PDFInfo
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- CN106961290A CN106961290A CN201710172926.2A CN201710172926A CN106961290A CN 106961290 A CN106961290 A CN 106961290A CN 201710172926 A CN201710172926 A CN 201710172926A CN 106961290 A CN106961290 A CN 106961290A
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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 I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology, described I type concentrator bandwidth carriers communication module includes carrier signal central processing module, central control module, carrier wave termination power module, power transfer module, register module, concentrator interface module, carrier signal modulation and demodulation module, the signal amplification module being 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 I type concentrator bandwidth carrier communication modules 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 positive 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 the high speed between supply side and customer side, communication letter stably, safe
Platform is ceased, system main website and higher management software are developed using magnanimity information processing technology and Real-Time Databases System Technique, is realized
The management and service of " information-based, automation, interactive ".
Based on this, a kind of I type concentrators bandwidth carrier communication mould based on high-performance carrier Control technology of present invention research and development
Block.
The content of the invention
It is an object of the invention to provide a kind of I type concentrators bandwidth carrier communication based on high-performance carrier Control technology
Module.The purpose of the present invention is achieved by the following technical solution：The described I type collection based on high-performance carrier Control technology
Middle device bandwidth carrier communication module includes the carrier signal central processing module on a wiring board, central control module, carrier wave
Termination power module, power transfer module, register module, concentrator interface module, carrier signal modulation and solution mode transfer
Block, signal amplification module etc..The power transfer module connects 380V three-phase circuits；The power transfer module electrical connection center
Control module；Central control module electrically connects carrier signal central processing module；Central control module electrical connection register module,
Concentrator interface module；The carrier signal central processing module is connected signal with demodulation module by signal modulation and amplified
Module, signal amplification module is connected with carrier wave termination power module；Carrier wave termination power is connected with 380V circuits;It is of the present invention
I type concentrator bandwidth carriers communication module be arranged on I type concentrators communication module interface slot in, carried by power line
Wave communication mode realizes the electrical energy collecting device and remote concentrated ammeter reading of low pressure resident electricity consumption information collection system user side
The meter information of system
Compared with the prior art, the bandwidth carrier communication unit based on high-performance carrier Control technology needed for harvester, it
Power department power information acquisition system can be made to realize remote high-speed wideband carrier data communication function in low-voltage platform area side,
And the high speed carrier centralized automatic meter-reading function of live meter is realized in the energy automatic meter reading system construction of multiple-in-one.The present invention
Using the power wire broadband carrier modulation technique of high-performance carrier Control, signal suppresses control technology.Communication physical bandwidth highest
For 4MBps.Become in subscriber board in the bandwidth carrier centralized meter-reading system concentrator that side is installed and bandwidth carrier communication module conduct is installed
Signal head end, installed in electric energy table side（Including single-phase intelligent electric energy meter, three-phase intelligent electric-energy meter, collector）Bandwidth carrier lead to
Believe that module, as terminal, broadband over power line is carried out between head end and terminal by the orthogonal frequency division multiplexer of particular algorithm
Carrier communication, so as to realize long range carriers data transfer.As one kind improvement, the central control module is electrically connected carrier signal
Central processing module, central control module can realize carrier wave enhancing algorithm and realize the link algorithm of Long-range Data Transmission.
Advantages of the present invention：The described I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology
Its function is：
1st, the networking authentication mechanism of the I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology:
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 only the terminal module of legal access could set up the communication link of safety with headend module.
2nd, automatic network-building mechanism:
Concentrator headend module can create and safeguard a communication network.The establishment and maintenance of this network are without manually do
In advance.With characteristics such as autonomous management, dynamics.1000 terminal connection numbers can be supported, maximum can support 15 grades of relayings.Support multichannel
Address function and dynamic and static routing function.
Autonomous management：, can be according to current power network environment situation, certainly when electricity on a carrier module and when being registered
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 make it that whole communication network may not have different tree topology in the same time.
3rd, 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 data communications need to be encrypted by AES.
4th, the I type concentrator bandwidth carriers communication module based on high-performance carrier Control technology supports 4 grades of QoS,
Meet the QoS requirement of different business.
Described bandwidth carrier DCOM unit characteristic 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, are coexisted with family InterWorking Equipment；Support that many changes coexist, avoid crosstalk
Situation occurs.
Brief description of the drawings
Fig. 1 is firmware framework figure of the invention.
Fig. 2 is communication interface logical architecture figure.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
The described I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology, as shown in figure 1, described I
The bandwidth carrier communication module of type concentrator, including be located on same wiring board carrier signal central processing module, center
Control module, carrier wave termination power module, power transfer module, register module, concentrator interface module, carrier signal
Modulation and demodulation module, signal amplification module etc..The power transfer module connects 380V three-phase circuits；The Power convert mould
Block electrically connects central control module；Central control module electrically connects carrier signal central processing module；Central control module is electrically connected
Connect register module, I type concentrator interface modules；The carrier signal central processing module passes through signal modulation and demodulation
Module connection signal amplification module, signal amplification module is connected with carrier wave termination power module；Carrier wave termination power and 220V/
380V circuits are connected.
Its feature is the power wire broadband carrier modulation technique using frequency division multiplex, and signal suppresses control technology,
It is up to 4MBps that communication physical bandwidth, which can be achieved,.Pacify in the bandwidth carrier centralized meter-reading system concentrator that subscriber board transformation side is installed
Equipped with bandwidth carrier communication module as signal head end, installed in electric energy table side（Including single-phase intelligent electric energy meter, three-phase intelligent electricity
Can table, collector）Bandwidth carrier communication module as terminal, it is many by the orthogonal frequency of particular algorithm between head end and terminal
Road multiplexing technology carries out power wire broadband carrier communication, so as to realize long range carriers 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 is built, with tree-like logical
Interrogate 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）
Insert concentrator side, ammeter module insertion collector or intelligent electric meter side（That is bandwidth carrier communication module-terminal）.Both sides pass through
Power line carrier signal is communicated.
2nd, system firmware
As shown in Fig. 2 the firmware that the present invention is designed 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 led to
Believe in module-terminal.These modules mainly include：MAC access control modules, PL PHY drive modules, UART PHY driving moulds
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.System can be distinguished pair
High-priority service is treated, CSMA/CA defines multiple priority.
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 passes through the priority of Special Statement itself data to be sent in priority parsing timeslice.The special sound
Clear signal can effectively overcome many device signals to disturb and transmission delay problem through special 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 and sends competitive opportunity.Obtain and send competition machine
The equipment of meeting is when sending data, if detecting circuit conflict, and the random time that retracts reattempts transmission.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 of transmission 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 the MAC Address of at least 32 bridge joints, use source address
By algorithm.Teach how to realize bridge function by description object of bandwidth carrier module head end below.
8th, bridge function is described
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 in the MAC Address learnt by source address, that is, preservation 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 some 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, which sends purpose TEI,
Message.
The target MAC (Media Access Control) address of the message is unicast address, and it is the MAC of some bandwidth carrier modular terminal in power network
Address, bandwidth carrier module head end sends messages of the purpose TEI for the TEI of 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 broadcast TEI message.
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 is carried
In the message that ripple module head end is sent, purpose TEI is the TEI for the bandwidth carrier modular terminal for bridging the network.
Bandwidth carrier modular terminal is due to the network without bridge joint, so it does not have LBDAT, its LBDAT is in other words
It is empty.
9th, module firmware interface is described
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 how 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, processing is responsible for by each drive module.
2 describe the logical architecture of communication interface.
Described I type concentrator bandwidth carriers communication module has a MII interface, supports that 10/100Mbit/s networks expand
Exhibition；One SPI Master/Slave interface；Four UART interfaces；One infrared interface；One I2C interface.
Electric line carrier communication technology, is a kind of communication technology carried out data transmission by electric wire.Carrier communication, which 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
Power equipment, instrument and the household electrical appliance in power network can be effectively monitored and controlled in the mode of kind.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 it even better compared to more other communication modes.The communication physical layer of described bandwidth carrier communication module
Transmission bandwidth 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.
[(it is unspecified herein to be prior art, therefore expansion is not repeated 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 I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology, it is characterised in that：Described I types
Concentrator bandwidth carrier communication module includes carrier signal central processing module, the center control mould being located on same wiring board
Block, carrier wave termination power module, power transfer module, register module, concentrator interface module, carrier signal modulation with
Demodulation module, signal amplification module；The power transfer module connects 380V three-phase circuits；The power transfer module electrical connection
Central control module；Central control module electrically connects carrier signal central processing module；Central control module electrically connects register
Module, concentrator interface module；The carrier signal central processing module is connected letter with demodulation module by signal modulation
Number amplification module, signal amplification module is connected with carrier wave termination power module；Carrier wave termination power connects with 220V/380V circuits
Connect;Described I type concentrator bandwidth carriers communication module is arranged in the slot of the communication module interface of I type concentrators, described
I types concentrator bandwidth carrier communication module communicated and transmitted in both directions number with being carried out installed in user's electric energy meter broadband connections unit
Word signal;The bandwidth carrier communication module that concentrator is installed is as signal head end, the bandwidth carrier installed in three-phase intelligent table
Communication module passes through the power line carrier based on multi-channel multiplexing algorithm as Signal Terminal between signal head end and Signal Terminal
Signal carries out power wire broadband carrier communication.
2. the I type concentrator bandwidth carrier communication modules according to claim 1 based on high-performance carrier Control technology, its
It is characterised by, described I type concentrator bandwidth carriers communication module has a MII interface, supports 10/100Mbit/s networks
Extension；One SPI Master/Slave interface；Four UART interfaces；One infrared interface；One I2C interface.
3. the I type concentrator bandwidth carrier communication modules according to claim 1 based on high-performance carrier Control technology, its
It is characterised by, the communication physical layer transmission bandwidth of described bandwidth carrier communication module is 2M~12M, physical layer transmission rate
For 150Kbit/s~14Mbit/s；Application layer speed 35Kbit/s~4Mbit/s, carrier signal transmission distance is not less than 300
Rice.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710172926.2A CN106961290A (en) | 2017-03-22 | 2017-03-22 | I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710172926.2A CN106961290A (en) | 2017-03-22 | 2017-03-22 | I type concentrator bandwidth carrier communication modules based on high-performance carrier Control technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521289A (en) * | 2018-06-13 | 2018-09-11 | 南方电网科学研究院有限责任公司 | Power line carrier communication system |
| 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 |
-
2017
- 2017-03-22 CN CN201710172926.2A patent/CN106961290A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521289A (en) * | 2018-06-13 | 2018-09-11 | 南方电网科学研究院有限责任公司 | Power line carrier communication system |
| 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 |
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Application publication date: 20170718 |