CN102843331A - Carrier communication multi-service access platform system and method - Google Patents
Carrier communication multi-service access platform system and method Download PDFInfo
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- CN102843331A CN102843331A CN2012103415407A CN201210341540A CN102843331A CN 102843331 A CN102843331 A CN 102843331A CN 2012103415407 A CN2012103415407 A CN 2012103415407A CN 201210341540 A CN201210341540 A CN 201210341540A CN 102843331 A CN102843331 A CN 102843331A
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Abstract
The invention provides a carrier communication multi-service access platform system. The carrier communication multi-service access platform system comprises at least one piece of carrier communication equipment which serves as a node to form a communication network, wherein an orthogonal frequency division multiplexing (OFDM) technology with differential binary phase shift keying (DBPSK), differential quadrature phase shift keying (DQPSK) and differential 8-ary phase shift keying (D8PSK) modulation and forward error correction, a self-adaptive carrier frequency selection technology and a programmable trapped wave mechanism are adopted among the nodes; cross transformer data transmission is performed through a medium/low voltage distribution wire; and the at least one piece of carrier communication equipment is communicated with external network equipment and/or a server through a data interface. The invention also provides a carrier communication multi-service access method. The invention can be applied to data transmission of power wires of power distribution networks with medium voltage of 10 to 35 KV and low voltage of 380 to 220 V, has multiple bus modes, is convenient with the external network equipment or server conveniently and can adopt a network structure with a master and multiple slavers. The main node has a network management function, can realize full-carrier network node management and is flexible in networking mode.
Description
Technical field
The present invention relates to data processing technique, more particularly, relate to a kind of carrier communication access multiservice platform system and method.
Background technology
Common power line data transmission technology generally adopts frequency shift keying debud mode (English is abbreviated as FSK) in the prior art; Can on the mesolow distribution wire that has very noisy to disturb, realize transfer of data, can satisfy apparatus of electrical monitoring equipment carries out data communication through power line demand.Its digital signal interface adopts RS-232 or RS-485 interface; Can be interconnected with devices such as existing distribution power automation terminal RTU, FTU, TTU, DTU and load controls, be applied to the data communication of systems such as power distribution automation, middle small hydropower station electric energy acquisition and monitoring, remote meter reading, distribution transformer monitoring, oil field remote monitoring.Owing to adopt the FSK debud mode, the highest 7.5k of its transmission rate can't the spanning multilevel feeder pillar, and stability is not high.Also have some power line data transmission technologies to adopt OFDM debud mode (English is abbreviated as OFDM) in the prior art, coupler cooperation aspect existing problems cause signal attenuation excessive, can not stride transformer transmission data.
The standard convention G3-PLC of existing a kind of power line communication is mainly used in the centralized automatic meter-reading field.The G3-PLC technology adopts advanced broadband connections technology, under noisy power line environment, can reach the speed of 300kbps.The G3-PL technology adopts the OFDM debud mode, on a plurality of carrier waves, sends data, and this helps the developer effectively to be avoided the interference of CF and strides transformer transmission data.In addition, the G3-PLC technology has reliable work pattern, high efficient band width channel coding technology and built-in mechanism for correcting errors, even under the strong situation of noise ratio signal, still guarantees the reliable transmission of data.
Summary of the invention
The technical problem that the present invention will solve is, proposes a kind of carrier communication access platform system.
The technical solution adopted for the present invention to solve the technical problems provides a kind of carrier communication access multiservice platform system; Comprise that at least one carrier communication equipment is respectively as node composition communication network; Adopt the technological and notching mechanism able to programme of OFDM technology, selections of self adaptation carrier frequency have DBPSK, DQPSK, D8PSK modulation and forward error correction between node, through in/low-voltage distribution wire strides the transformer transfer of data; At least one carrier communication equipment is through data-interface and outside network device and/or server communication.
Preferably, above-mentioned carrier communication access multiservice platform system also comprises Ethernet, RS232, RS485, GPRS, CAN and/or 433MHZ, 2.4GHz frequency range wirelessly transmitting data interface; Outside network device and/or server connect through at least one data access and carrier communication access multiservice platform system, realize multi-service integrated access.
Preferably, above-mentioned at least one carrier communication equipment comprises at least one middle main equipment of pressing, as host node; And at least one carrier communication equipment comprises and presses slave unit and/or low pressure slave unit at least one, respectively as from node.
Preferably, above-mentioned at least one carrier communication equipment powers on respectively, at least onely sends logon message through power line respectively from node, initiatively registers to a host node; Host node is verified at least one from node respectively, to its distribution network sign and device identification; Host node is according to network identity and device identification and at least one from node communication; For leave carrier communication access multiservice platform system from node, host node will regain from node corresponding identification resource.
Preferably, above-mentioned at least one host node and/or generate the IP address respectively from node and be used for mutual to the management of carrier communication equipment and power scheduling stipulations; At least one host node of outside network device and/or server access and/or from node is through visiting the IP address of its generation, and corresponding data message reaches respective nodes through being routed automatically to.
Preferably, for first host node and first from nodal distance cross far away so that carrier signal poor, the situation of influence communication, at least one host node and/or whether need relaying from the automatic selection of node; For need confirming relaying, be connected in second on the same line road with first host node and first from node and serve as proxy role from node, first host node and first is carried out relaying from the carrier signal of sending between the node.
Preferably, above-mentioned at least one carrier communication equipment adopts automatic repetitive requests technology to carry out the data transmission fault detection respectively; And/or at least one carrier communication equipment adopts Intelligent Dynamic technology respectively, selects to insert the highest channel of transmission rate based on channel condition.
Preferably, above-mentioned at least one carrier communication equipment comprises at least one amplifier respectively, and power output is more than or equal to 2 watts.
The present invention also proposes a kind of carrier communication multi-service cut-in method, realizes that based at least one carrier communication equipment the carrier communication multi-service inserts, and comprising: at least one carrier communication equipment is formed the step of communication network respectively as primary node and secondary node; Between at least one carrier communication equipment respectively through in/low-voltage distribution wire carries out the step of transfer of data; And at least one carrier communication equipment is through the step of data-interface and outside network device and/or server communication.
Preferably, between above-mentioned at least one carrier communication equipment respectively through in/step that low-voltage distribution wire carries out transfer of data comprises: at least one carrier communication equipment adopts the technological and notching mechanism able to programme of the OFDM technology, selections of self adaptation carrier frequency that have DBPSK, DQPSK, D8PSK modulation and forward error correction to carry out transfer of data.
Preferably, a kind of carrier communication multi-service cut-in method comprises: at least one node powers on respectively, at least onely sends logon message through power line respectively from node, initiatively to the step of at least one host node registration; Host node is verified at least one from node respectively, to the step of its distribution network sign and device identification; Host node is according to network identity and device identification and at least one step from node communication; And/or for leave carrier communication access multiservice platform system from node, host node is regained the step from node corresponding identification resource.
Preferably, a kind of carrier communication multi-service cut-in method comprises: detect for first host node and first step from the carrier signal quality of node; Ropy for carrier signal, at least one host node and/or whether need the step of relaying from the automatic selection of node; For need confirming relaying, notice is connected in second on the same circuit from node with first host node and first from node, by it as the step of acting on behalf of; Second carries out the step of relaying to first host node and first from the carrier signal of sending between the node from node.
During can be applicable to, the present invention presses 10KV-35KV power distribution network power line transfer of data; Have multiple bus mode, easy to connect with outside network device and/or server; Can organize one much more main from network configuration, host node has network management function, can realize the management of full carrier network node, networking mode is flexible.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is one embodiment of the invention carrier communication access multiservice platform system configuration sketch map;
Fig. 2 is one embodiment of the invention carrier communication access multiservice platform system interface sketch map;
Fig. 3 is one embodiment of the invention carrier communication multi-service cut-in method main-process stream sketch map.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The G3-PLC technology is never used in the medium-voltage distribution network before this; During the present invention proposes PLC-G3 technology or the advanced technologies such as OFDM technology, self adaptation carrier frequency selections technology and notching mechanism able to programme that have DBPSK, DQPSK, D8PSK modulation and a forward error correction are applied in the ballast ripple communication product, realization be applied to the power distribution automation substation in/the low pressure carrier wave data communication.
With reference to the carrier communication access multiservice platform system configuration sketch map shown in Fig. 1; Comprise at least one carrier communication equipment 3; Form communication network as node respectively; Adopt the technological and notching mechanism able to programme of OFDM technology, selections of self adaptation carrier frequency have DBPSK, DQPSK, D8PSK modulation and forward error correction between node respectively, through in/low-voltage distribution wire carries out transfer of data; At least one carrier communication equipment 3 is communicated by letter with host computers such as outside network device and/or servers through data-interface.Outside network device can be connected network 2 and swap data respectively with/host computers such as server.
The OFDM technology that has DBPSK, DQPSK, D8PSK modulation and forward error correction, self adaptation carrier frequency selection technology and the notching mechanism technology able to programme that present embodiment adopts is not limited only to arrange in the G3-PLC agreement, can also meet the other technologies standard.Above-mentioned technology is used for pressing 10KV-35KV power distribution network power line transfer of data to possess following advantage: it is strong to strengthen concertedness, is operated in 10kHz to 490kHz frequency range, supports FCC, CENELEC and ARIB; Can with IEC 61334,
P1901 and ITU G.hn system synergistic working, reduce the capital construction cost; Transmission range reaches 6km on the medium voltate power line, can use repeater still less, can cross over the transformer transmission, can use data concentrator still less.Present embodiment can adopt the G3-PLC agreement, possesses the reliability protective value, guarantees reliably working based on the PHY of OFDM; Optimize in low data rate based on the MAC layer of IEEE802.15.4; Its ipsec reliable mode IPSEC can overcome the interference of noisy transmission channel; Possesses the two-stage forward error correction.Because the G3-PLC agreement also possesses internet security, the 6LoWPAN adaptation layer supports IPv6 to divide into groups; Tool AES-128 high-speed encryption engine.The intelligence communication mechanism of present embodiment G3-PLC agreement also capable of using can the adaptive frequency mapping provide the highest bandwidth availability ratio; Modulate between channel estimation optimization contact; Network routing protocol is selected optimal channel between the far-end contact.
The present invention proposes an embodiment; With reference to the carrier communication access multiservice platform system interface sketch map shown in Fig. 2, carrier communication access multiservice platform system also comprises Ethernet, RS232, RS485, GPRS, CAN and/or 433MHZ frequency range wirelessly transmitting data interface; Outside network device and/or server connect through at least one data access and carrier communication access multiservice platform system, realize multi-service integrated access.
Be transferred at least one carrier communication equipment 3 from host computer data sent such as outside distribution automation server 1, outside network device and/or servers through at least one data access and/or wirelessly transmitting data interface; A series of four parallel-by-bit data that are for conversion into such as 3 pairs of data of at least one carrier communication equipment are decoded, shaping pulse, serial/parallel conversion; And then become digital signal through a series of processing modulation; Become analog signal through digital-to-analogue conversion, be coupled on the power line and transmit.And arrive at least one carrier communication equipment 3 through coupled transfer from the analog signal of power line; Through analog-to-digital conversion, demodulation process and be converted into data, send to host computers such as outside distribution automation server 1, outside network device and/or server through at least one data access and/or wirelessly transmitting data interface.
The present invention also proposes, and at least one carrier communication equipment 3 comprises at least one middle main equipment 31 of pressing, as first host node; And at least one carrier communication equipment 3 comprises and presses slave unit 32 and/or low pressure slave unit 33 at least one, respectively as first from node and second from node.
With reference to the carrier communication access multiservice platform system configuration sketch map shown in Fig. 1; Forming communication network from node and second from node as first with middle pressure main equipment 31 respectively as first host node, middle pressure slave unit 32 and low pressure slave unit 33 is example, host node and respectively from node, respectively from all carrying out data interaction between the node through power line.Outside distribution automation server 1 connects optical-fiber network 2 through optical fiber; Be connected with carrier communication access multiservice platform system through Ethernet.
First host node, first from node and second after node powers on respectively, first from node and second from node all initiatively to the registration of first host node, logon message is delivered to first host node through power line.First host node passes through register flow path, verifies first respectively from the node and second legitimacy from node, if then identify and device identification from node difference distribution network from node and/or second to first through checking.In case have from the node deviated from network, first host node will reclaim and be somebody's turn to do from node corresponding network identity and device identification resource.
Based on the foregoing description, the present invention proposes, at least one host node and/or from node generate respectively the IP address be used to manage at least one from node and power scheduling stipulations alternately; At least one host node of outside network device and/or server access and/or from node is through visiting the IP address of its generation, and corresponding data message reaches respective nodes through being routed automatically to.Specifically, first host node with succeed in registration will be respectively this carrier communication equipment from node and obtain IPv6 address and/or IPv4 address, be used for follow-up equipment control and power system dispatching stipulations alternately.Outside network device and/or server if visit first host node or certain from node, only need its corresponding IP address of visit, corresponding data message promptly is routed automatically to corresponding carrier equipment node.For example distribution automation server 1 will deliver to second from node with the IP message, and its a kind of path can be: distribution automation server 3 → the first host nodes → 10KV cable → second is from node.
The present invention also proposes, and carrier communication access multiservice platform system selects internodal trunking plan automatically.For example system discovery second is from hypertelorism between the node and first host node; To such an extent as to carrier signal difference and influence communication; Then be positioned at first on the same line road and will serve as agency's role from node automatically; First host node and first is carried out relaying from the carrier signal of sending between the node, need not carry out the relay function that carrier signal is promptly accomplished in special configuration.
The present invention also proposes an embodiment, on the foregoing description basis, further improves carrier communication access multiservice platform system.At least one carrier communication equipment 3 adopts automatic repetitive requests technology to carry out data transmission fault respectively and detects; Employing Intelligent Dynamic technology selects to insert the highest channel of transmission rate based on channel condition; Other data communication mode can compatiblely be supported, like optical fiber, GPRS etc.The maximum transmission rate of at least one carrier communication equipment 3 can reach 300Kbps; Have powerful forward direction verification and CRC function, application of RS and Viterbi encoding and decoding technique to strengthen the FEC performance; Have automatic repetitive requests (ARQ) technology and strengthen wrong detection and data transmission credibility, realize selecting the Intelligent Dynamic access way of optimal transmission speed based on channel condition.At least one carrier communication equipment 3 also adopts differential coherence binary phase shift keying (English is abbreviated as DBPSK), four phase RPSK relative phase shift keyings (English is abbreviated as DQPSK), the difference eight phase shift keyings multiple modulation systems such as (English are abbreviated as D8PSK) based on orthogonal frequency division multiplexi (English is abbreviated as OFDM), significantly strengthens the confidentiality and the throughput of anti-interference, the data of transmission.
Press 10KV-35KV power distribution network power line transfer of data during carrier communication access multiservice platform provided by the invention system can be applicable to, have 10kHz-490kHz OFDM self adaptation Frequency Band Selection technology, transmitting power is adjustable; Have multiple bus mode, easy to connect with outside network device and/or server; Transmission rate is up to hundreds of kbps on the basis of reliability and stability; Can organize one much more main from network configuration, host node has network management function, cooperates the IPV6 networking model, can realize the management of full carrier network node, networking mode is flexible.
Propose based on the foregoing description the present invention, for realizing striding the transformer transmission, at least one carrier communication equipment comprises at least one amplifier respectively, and power output is more than or equal to 2W.
With reference to the carrier communication multi-service cut-in method main-process stream sketch map shown in the carrier communication access multiservice platform system configuration sketch map shown in Fig. 1 and Fig. 3; The present invention proposes a kind of carrier communication multi-service cut-in method; Realize that based at least one carrier communication equipment 3 the carrier communication multi-service inserts, and comprising:
Step S1, at least one carrier communication equipment are formed communication network as primary node and secondary node respectively;
Between step S2, at least one carrier communication equipment respectively through in/low-voltage distribution wire carries out transfer of data; And
Step S3, at least one carrier communication equipment are through data-interface and outside network device and/or server communication.
The present invention proposes step S2 and comprises based on the foregoing description:
Step S21, at least one carrier communication equipment adopt the OFDM technology, self adaptation carrier frequency selection technology and the notching mechanism able to programme that have DBPSK, DQPSK, D8PSK modulation and forward error correction to carry out transfer of data.
The present invention proposes step S1, at least one carrier communication equipment 3 and forms communication network as node respectively and comprise based on the foregoing description:
Step S11, at least one node power on respectively, at least onely send logon message through power line respectively from node, initiatively at least one host node registration;
Step S12, host node are verified at least one from node respectively, to its distribution network sign and device identification.
Present embodiment also proposes step S1, at least one carrier communication equipment and can also comprise as primary node and secondary node composition communication network respectively:
Step S13, for leave carrier communication access multiservice platform system from node, host node regains from node corresponding identification resource.
And between step S2, node through in/low-voltage distribution wire carries out transfer of data and comprises:
Step S21, host node are according to network identity and device identification and at least one from node communication.
Based on the foregoing description, the present invention proposes step S3, at least one carrier communication equipment also comprises through data-interface and outside distribution automation server communication:
Step S31, detection are for first host node and the first carrier signal quality from node;
Step S32, ropy for carrier signal, at least one host node and/or whether need relaying from the automatic selection of node;
Step S33, for need confirming relaying, notice is connected in second on the same circuit from node with first host node and first from node, by it as the agency;
Step S34, second carries out relaying to first host node and first from the carrier signal of sending between the node from node.
Concrete annexation between at least one carrier communication equipment 3 that the present invention is based on and the work relationship in this method embodiment are with reference to previous embodiment, so do not give unnecessary details.
More than be merely preferred embodiment of the present invention,, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention not in order to restriction the present invention.
Claims (12)
1. carrier communication access multiservice platform system is characterized in that:
Comprise that at least one carrier communication equipment is respectively as node composition communication network; Adopt the technological and notching mechanism able to programme of OFDM technology, selections of self adaptation carrier frequency have DBPSK, DQPSK, D8PSK modulation and forward error correction between node, through in/low-voltage distribution wire strides the transformer transfer of data;
Said at least one carrier communication equipment is through data-interface and outside network device and/or server communication.
2. a kind of carrier communication access multiservice platform according to claim 1 system is characterized in that:
Also comprise Ethernet, RS232, RS485, GPRS, CAN and/or 433MHZ, 2.4GHz frequency range wirelessly transmitting data interface;
Outside network device and/or server connect through said at least one data access and carrier communication access multiservice platform system, realize multi-service integrated access.
3. a kind of carrier communication access multiservice platform according to claim 1 system is characterized in that:
Said at least one carrier communication equipment comprises at least one middle main equipment of pressing, as host node; And
Said at least one carrier communication equipment comprises at least one middle slave unit and/or low pressure slave unit of pressing, and conduct is from node respectively.
4. a kind of carrier communication access multiservice platform according to claim 3 system is characterized in that:
Said at least one carrier communication equipment powers on respectively, at least onely sends logon message through power line respectively from node, initiatively to said host node registration;
Said host node is verified said at least one from node respectively, to its distribution network sign and device identification;
Said host node is according to network identity and device identification and said at least one from node communication;
For leave carrier communication access multiservice platform system from node, said host node will regain from node corresponding identification resource.
5. a kind of carrier communication access multiservice platform according to claim 3 system is characterized in that:
Said at least one host node and/or generate the IP address respectively from node and be used for mutual to the management of carrier communication equipment and power scheduling stipulations;
The said at least one host node of outside network device and/or server access and/or from node is through visiting the IP address of its generation, and corresponding data message reaches respective nodes through being routed automatically to.
6. a kind of carrier communication access multiservice platform according to claim 3 system is characterized in that:
For first host node and first from nodal distance cross far away so that carrier signal poor, the situation of influence communication, said at least one host node and/or whether need relaying from the automatic selection of node;
For need confirming relaying, be connected in second on the same line road with said first host node and first from node and serve as proxy role from node, said first host node and first is carried out relaying from the carrier signal of sending between the node.
7. according to any described a kind of carrier communication access multiservice platform system of claim 1～6, it is characterized in that:
Said at least one carrier communication equipment adopts automatic repetitive requests technology to carry out data transmission fault respectively and detects; And/or
Said at least one carrier communication equipment adopts the Intelligent Dynamic technology respectively, selects to insert the highest channel of transmission rate based on channel condition.
8. according to any described a kind of carrier communication access multiservice platform system of claim 1～6, it is characterized in that:
Said at least one carrier communication equipment comprises at least one amplifier respectively, and power output is more than or equal to 2 watts.
9. a carrier communication multi-service cut-in method realizes that based at least one carrier communication equipment the carrier communication multi-service inserts, and it is characterized in that, comprising:
At least one carrier communication equipment is formed the step of communication network respectively as primary node and secondary node;
Between at least one carrier communication equipment respectively through in/low-voltage distribution wire carries out the step of transfer of data; And
Said at least one carrier communication equipment is through the step of data-interface and outside network device and/or server communication.
10. a kind of carrier communication multi-service cut-in method according to claim 9 is characterized in that, between at least one carrier communication equipment respectively through in/step that low-voltage distribution wire carries out transfer of data comprises:
At least one carrier communication equipment adopts the OFDM technology, self adaptation carrier frequency selection technology and the notching mechanism able to programme that have DBPSK, DQPSK, D8PSK modulation and forward error correction to carry out transfer of data.
11. a kind of carrier communication multi-service cut-in method according to claim 10 is characterized in that:
Said at least one node powers on respectively, at least onely sends logon message through power line respectively from node, initiatively to the step of said at least one host node registration;
Said host node is verified said at least one from node respectively, to the step of its distribution network sign and device identification;
Said host node is according to network identity and device identification and said at least one step from node communication; And/or
For leave carrier communication access multiservice platform system from node, said host node is regained the step from node corresponding identification resource.
12., it is characterized in that according to any described a kind of carrier communication multi-service cut-in method of claim 9 to 11:
Detection is for first host node and first step from the carrier signal quality of node;
Ropy for carrier signal, said at least one host node and/or whether need the step of relaying from the automatic selection of node;
For need confirming relaying, notice is connected in second on the same circuit from node with said first host node and first from node, by it as the step of acting on behalf of;
Said second carries out the step of relaying to said first host node and first from the carrier signal of sending between the node from node.
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