CN104601652A - Beidou satellite communication system based electric communication system and method - Google Patents
Beidou satellite communication system based electric communication system and method Download PDFInfo
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- H02J13/0013—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
Abstract
The invention relates to the field of electric communication and particularly relates to a Beidou satellite communication system based electric communication system and method. The electric communication system comprises a plurality of remote control stations, a plurality of central stations, a data processing terminal and an electric distribution network system. Two ends of the data processing terminal are connected with the remote control stations and the central stations respectively, and the central stations are connected with the power distribution network system. The data processing terminal comprises an internet access RU-45 communication module, a Beidou satellite communication module and a protocol conversion module. The internet access RU-45 communication module and the Beidou satellite communication module are connected with the protocol conversion module respectively. The power distribution network system comprises power distribution sub-stations and a power distribution main station. The central stations are connected with the power distribution sub-stations, and the power distribution sub-stations are connected with the power distribution main station through the Beidou satellite. The system and the method have the advantages that power communication is performed by the aid of the Beidou satellite, so that the dependency on outdoor power communication facilities is reduced, and the communication stability is improved.
Description
Technical field
The present invention relates to field of power communication, in particular to based on the power communication system of Beidou satellite communication system and electric power communication method.
Background technology
The power telecom network of China is through the construction of trials and hardships decades, begin to take shape, built by the multiple means of communication such as satellite, microwave, carrier wave, optical cable and formed the crossings on different level communication network that a Beijing-centered covers 30 provinces (city, district) in the whole nation.The development of whole Target of Power Telecommunication in China, grow out of nothing, from small to large, from simple technique to current advanced technology, from comparatively single telecommunication cable and power line carrier communication means to comprising the multiple means of communication such as optical fiber, digital microwave, satellite and using, from local electric wire communication mode to covering the trunk network in the whole nation and national telephone net, mobile telephone network, the Digital Data Net based on programme-controlled exchange, invariably show the significant achievements of power communication development.
For meeting power system operation, the needs of maintenance and management and the information transmission of carrying out and exchange.Electric power system in order to safety, economical send out power supply, reasonably distribute electric energy, ensure power quality index, process in time and prevent systematic failures, just require centralized management, United Dispatching, set up the communication system adapted with it.Therefore communication of power system is the indispensable important component part of electric power system, is the basis that electrical network realizes dispatching automation and management modernization, is the important technical guaranteeing power grid security, economic dispatch.Existing power communication system substantially place one's entire reliance upon electrical network erection communications facility, this communications facility usually can ensure communicate unimpeded, but, once occur large scale disasters, communications facility is destroyed, then directly affect the reliability of power communication, stability.
Summary of the invention
The object of the present invention is to provide a kind of power communication system based on Beidou satellite communication system and electric power communication method, to reduce the dependence of power communication to existing outdoor electric communications facility.
One aspect of the present invention provides a kind of power communication system based on Beidou satellite communication system, comprising: multiple remote control station, multiple central station, data processing terminal and power matching network system; Wherein, the two ends of described data processing terminal are connected with remote control station, central station respectively, and described central station is connected with power matching network system;
Described data processing terminal comprises: network interface RU-45 communication module, Beidou communication module, protocol transform module, and described network interface RU-45 communication module is connected with protocol transform module respectively with Beidou communication module;
Described power matching network system comprises distribution substation, distribution master station, and described central station is connected with described distribution substation, is connected between described distribution substation and described distribution master station by big-dipper satellite.
In certain embodiments, be preferably, described distribution substation and distribution master station are all furnished with distribution terminal, and described distribution terminal comprises: multiple stage detection and control terminal, multiple stage communications protocol conversion equipment, many cover Big Dipper terminals and GPRS communication apparatus.
In certain embodiments, be preferably, described measuring and controlling equipment is the FTU be arranged on post, be arranged on the TTU in distribution transforming or be arranged on the FTU/DTU of switching station, power distribution station, ring-main unit.
In certain embodiments, be preferably, described Beidou communication module comprises:
RS-485 communication unit, for RS-485 packing is sent, and after receiving packet resolution data bag storing;
RJ-45 communication unit, connects for the link in 104 stipulations, stores after being resolved by 104 packets received;
Data buffer unit, is connected with RS-485 communication unit, RJ-45 communication unit, carries out digital independent for RS-485 communication unit, RJ-45 communication unit.
In certain embodiments, be preferably, described data processing terminal is Big Dipper terminating machine.
In certain embodiments, be preferably, described remote control station is positioned at each line node of power matching network system, and comprises data acquisition module.
Another aspect of the present invention additionally provides a kind of electric power communication method based on Beidou satellite communication system, comprising:
Step 1, remote signalling station sends the data of collection to data processing terminal;
Step 2, data processing terminal will issue Beidou satellite communication terminal after data processing, data retransmission is sent to the satellite communication terminal machine of central station by big-dipper satellite terminal by satellite;
Step 3, the satellite communication terminal machine of central station sends data to data receiver end for process, the data receiver end for process of central station and GPRS communication apparatus receive the electric network data of distribution substation or distribution terminal transmission, and the electric network data of reception imports distribution master station into through communications protocol conversion equipment;
Step 4, the control command that distribution master station sends sends to distribution substation by Big Dipper machine of commanding after communications protocol conversion equipment.
In certain embodiments, be preferably, step 2 comprises:
RS-485 communicates: RS-485 communication module adopts the mode cycle detection of inquiry mailbox whether to have Packet Generation or reception; If there are data to send, are then packaged into RS485 Packet Generation and go out; If there is data receiver, then complete and be stored into corresponding data buffering module according to type through resolution data bag after receiving packet;
RJ-45 communicates: the link that RJ-45 communication module completes in 104 stipulations connects; The mode cycle detection of inquiry mailbox is adopted whether to have Packet Generation or reception; If any data receiver, then receive 104 packets, and detect packet complete and resolve be stored into corresponding data buffering module respectively according to type.
In certain embodiments, be preferably, step 3 comprises:
Measuring and controlling equipment FTU/DTU after Ethernet carries out protocol conversion by communications protocol conversion equipment, imports the electric network data of collection into Big Dipper terminal or GPRS communication apparatus, or imports Big Dipper terminal and GPRS communication apparatus into simultaneously;
Electric network data is transferred to distribution substation or distribution main website respectively by Beidou satellite system and GPRS network by Big Dipper terminal and GPRS communication apparatus.
In certain embodiments, be preferably, step 4 comprises:
Big Dipper commander's machine and GPRS communication apparatus receive the electric network data of distribution substation transmission, and the electric network data of reception imports main website server into through communications protocol conversion equipment; Or
The control command that distribution main website sends commands machine I to send to distribution substation by the Big Dipper after communications protocol conversion equipment.
The power communication system based on Beidou satellite communication system that the embodiment of the present invention provides and electric power communication method, compared with prior art, remote control station image data, after data transaction, transfer of data is carried out with big-dipper satellite, after data transaction, arrive central station, and carry out transfer of data with distribution substation, distribution master station.This mode adopts satellite communication, and the existing power communications facility of basic disengaging, realizes the transfer of data of field apparatus based on dipper system; Realize the data of system to distribution underlying device, the Inspect and control of state; System Data Format meets electric power 104 stipulations standard criterion; Transfer of data accuracy is greater than 99.9%; Big-dipper satellite transfer of data packet loss is less than 0.1%; Data transfer interval is less than 60s; Data receiver time delay is less than 5s.
Accompanying drawing explanation
Fig. 1 is based on the operating process schematic diagram communicated in the power communication system of Beidou satellite communication system in one embodiment of the invention.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Because existing power communication system relies on the electric power facility of existing outdoor erection completely, once this facility is destroyed, power communication then can be a greater impact, in order to reduce the dependence of power communication to existing electric power facility, the invention provides the power communication system based on Beidou satellite communication system and electric power communication method.
Based on the power communication system of Beidou satellite communication system, comprising: multiple remote control station, multiple central station, data processing terminal and power matching network system; Wherein, the two ends of data processing terminal are connected with remote control station, central station respectively, and central station is connected with power matching network system;
Data processing terminal comprises: network interface RU-45 communication module, Beidou communication module, protocol transform module, and network interface RU-45 communication module is connected with protocol transform module respectively with Beidou communication module;
Power matching network system comprises distribution substation, distribution master station, and central station is connected with distribution substation, is connected between distribution substation and distribution master station by big-dipper satellite.
Based on the electric power communication method of Beidou satellite communication system, comprising:
Step 1, remote signalling station sends the data of collection to data processing terminal;
Step 2, data processing terminal will issue Beidou satellite communication terminal after data processing, data retransmission is sent to the satellite communication terminal machine of central station by big-dipper satellite terminal by satellite;
Step 3, the satellite communication terminal machine of central station sends data to data receiver end for process, the data receiver end for process of central station and GPRS communication apparatus receive the electric network data of distribution substation or distribution terminal transmission, and the electric network data of reception imports distribution master station into through communications protocol conversion equipment;
Step 4, the control command that distribution master station sends sends to distribution substation by Big Dipper machine of commanding after communications protocol conversion equipment.
Remote control station image data, after data transaction, carries out transfer of data with big-dipper satellite, after data transaction, arrives central station, and carries out transfer of data with distribution substation, distribution master station.This mode adopts satellite communication, and the existing power communications facility of basic disengaging, realizes the transfer of data of field apparatus based on dipper system; Realize the data of system to distribution underlying device, the Inspect and control of state; System Data Format meets electric power 104 stipulations standard criterion; Transfer of data accuracy is greater than 99.9%; Big-dipper satellite transfer of data packet loss is less than 0.1%; Data transfer interval is less than 60s; Data receiver time delay is less than 5s.
Next, by some embodiments, power communication system based on Beidou satellite communication system and concrete method are described:
Based on a power communication system for Beidou satellite communication system, comprising: multiple remote control station, multiple central station, data processing terminal and power matching network system; Wherein, the two ends of data processing terminal are connected with remote control station, central station respectively, and central station is connected with power matching network system;
Data processing terminal comprises: network interface RU-45 communication module, Beidou communication module, protocol transform module, and network interface RU-45 communication module is connected with protocol transform module respectively with Beidou communication module;
Power matching network system comprises distribution substation, distribution master station, and central station is connected with distribution substation, is connected between distribution substation and distribution master station by big-dipper satellite.
Big Dipper commander's machine and GPRS communication apparatus receive the electric network data of distribution substation transmission, and the electric network data of reception imports main website server into through communications protocol conversion equipment; Or
The control command that distribution main website sends commands machine I to send to distribution substation by the Big Dipper after communications protocol conversion equipment.
Remote signalling station sends the data of collection to data processing terminal; Data processing terminal will issue Beidou satellite communication terminal after data processing, data processing terminal realizes the Big Dipper/GPRS-electric power 104 communication protocol and mutually changes, and data retransmission is sent to the satellite communication terminal machine of central station by big-dipper satellite terminal by satellite; The satellite communication terminal machine of central station sends data to data receiver end for process, the data receiver end for process of central station and GPRS communication apparatus receive the electric network data of distribution substation or distribution terminal transmission, and the electric network data of reception imports distribution master station into through communications protocol conversion equipment; The control command that distribution master station sends sends to distribution substation by Big Dipper machine of commanding after communications protocol conversion equipment.
Wherein, Beidou communication module comprises:
RS-485 communication unit, for RS-485 packing is sent, and after receiving packet resolution data bag storing; RS-485 communication module adopts the mode cycle detection of inquiry mailbox whether to have Packet Generation or reception; If there are data to send, are then packaged into RS485 Packet Generation and go out; If there is data receiver, then complete and be stored into corresponding data buffering module according to type through resolution data bag after receiving packet;
RJ-45 communication unit, connects for the link in 104 stipulations, stores after being resolved by 104 packets received; The link that RJ-45 communication module completes in 104 stipulations connects; The mode cycle detection of inquiry mailbox is adopted whether to have Packet Generation or reception; If any data receiver, then receive 104 packets, and detect packet complete and resolve be stored into corresponding data buffering module respectively according to type.
Data buffer unit, is connected with RS-485 communication unit, RJ-45 communication unit, carries out digital independent for RS-485 communication unit, RJ-45 communication unit.Real-time data base opens one piece of overall shared buffer in internal memory, and it comprises various remote signalling, remote measurement, distant arteries and veins and remote-control data district, and for controlling the various marks of these buffer area read-writes.Because real-time data base is based upon internal memory, so multiple module can complete completely their read-write and can not produce the access conflict problem of internal memory in a task, the startup of read-write also only needs just can be realized by mark.Like this, just need not consider to carry out serializing and synchronous problem to multitask, and response and conversion speed high.According to the memory size of current system, the real-time data base of communication protocol transducer is all based upon and wherein also can not encounters overflow problem.
Communication task, as shown in Figure 1, require that real-time is the highest, therefore priority is set to the highest; All the other tasks, according to requirement of real-time, arrange remote control task priority second high, remote signalling task priority third high.
The protocol transform module of data processing terminal also performs following action: the Big Dipper-electric power 104 protocol transform, and task comprises the function of the collection of electric power data, storage, conversion.Task reads the parameter in electric power 104 stipulations from the data buffer zone collected, according to the order that master station sends, judge the type of order and trigger corresponding transformation rule and the parameter in electric power 104 stipulations is carried out compress and process and be packaged into the data packet format of the Big Dipper.
Beidou communication module also comprises start unit, the task agent performed is containing two parts: one, the initialization of Big Dipper module comprise hardware-initiated, restart, search star, semaphore lock, signal testing function, two, send packet, receive the function of packet and resolution data bag.First task starts Big Dipper module communication baud rate is 19200, detects the initialization modules such as whether Big Dipper card is installed, signal strength signal intensity.After Big Dipper module initialization, duty cycle inquires about whether Packet Generation and reception.
Distribution substation and distribution master station are all furnished with distribution terminal, and distribution terminal comprises: multiple stage detection and control terminal, multiple stage communications protocol conversion equipment, many cover Big Dipper terminals and GPRS communication apparatus.
Data processing terminal is after process completes these event responses, electric power 104 conventions data processed is sent to background server by big-dipper satellite link, then by background server, data receiver is gathered, and unpack and be reduced into primary electric power 104 conventions data access electric power data server.
Wherein, measuring and controlling equipment is the FTU be arranged on post, is arranged on the TTU in distribution transforming or is arranged on the FTU/DTU of switching station, power distribution station, ring-main unit.
Measuring and controlling equipment FTU/DTU after Ethernet carries out protocol conversion by communications protocol conversion equipment, imports the electric network data of collection into Big Dipper terminal or GPRS communication apparatus, or imports Big Dipper terminal and GPRS communication apparatus into simultaneously;
Electric network data is transferred to distribution substation or distribution main website respectively by Beidou satellite system and GPRS network by Big Dipper terminal and GPRS communication apparatus.
Wherein, data processing terminal is Big Dipper terminating machine.
Remote control station is positioned at each line node of power matching network system, and comprises data acquisition module.
The power distribution automation that switching station/switchyard in a section is responsible in distribution substation is implemented, complete concentrating and forwarding of controller switching equipment data, there is the functions such as remote measurement, " three the is distant " function of Remote control and local monitoring, fault detect isolation, and real time data is relayed on the main website server of distribution main website.Big Dipper commander's machine and GPRS communication apparatus receive the electric network data of distribution substation or distribution terminal transmission, and the electric network data of reception imports main website server into through communications protocol conversion equipment; The control command that distribution main website sends commands machine I to send to distribution substation or distribution terminal by the Big Dipper after communications protocol conversion equipment.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. based on a power communication system for Beidou satellite communication system, it is characterized in that, comprising: multiple remote control station, multiple central station, data processing terminal and power matching network system; Wherein, the two ends of described data processing terminal are connected with remote control station, central station respectively, and described central station is connected with power matching network system;
Described data processing terminal comprises: network interface RU-45 communication module, Beidou communication module, protocol transform module, and described network interface RU-45 communication module is connected with protocol transform module respectively with Beidou communication module;
Described power matching network system comprises distribution substation, distribution master station, and described central station is connected with described distribution substation, is connected between described distribution substation and described distribution master station by big-dipper satellite.
2. as claimed in claim 1 based on the power communication system of Beidou satellite communication system, it is characterized in that, described distribution substation and distribution master station are all furnished with distribution terminal, and described distribution terminal comprises: multiple stage detection and control terminal, multiple stage communications protocol conversion equipment, many cover Big Dipper terminals and GPRS communication apparatus.
3., as claimed in claim 2 based on the power communication system of Beidou satellite communication system, described measuring and controlling equipment is the FTU be arranged on post, be arranged on the TTU in distribution transforming or be arranged on the FTU/DTU of switching station, power distribution station, ring-main unit.
4., as claimed in claim 1 based on the power communication system of Beidou satellite communication system, it is characterized in that, described Beidou communication module comprises:
RS-485 communication unit, for RS-485 packing is sent, and after receiving packet resolution data bag storing;
RJ-45 communication unit, connects for the link in 104 stipulations, stores after being resolved by 104 packets received;
Data buffer unit, is connected with RS-485 communication unit, RJ-45 communication unit, carries out digital independent for RS-485 communication unit, RJ-45 communication unit.
5., as claimed in claim 1 based on the power communication system of Beidou satellite communication system, it is characterized in that, described data processing terminal is Big Dipper terminating machine.
6., as claimed in claim 1 based on the power communication system of Beidou satellite communication system, described remote control station is positioned at each line node of power matching network system, and comprises data acquisition module.
7. based on an electric power communication method for Beidou satellite communication system, it is characterized in that, comprising:
Step 1, remote signalling station sends the data of collection to data processing terminal;
Step 2, data processing terminal will issue Beidou satellite communication terminal after data processing, data retransmission is sent to the satellite communication terminal machine of central station by big-dipper satellite terminal by satellite;
Step 3, the satellite communication terminal machine of central station sends data to data receiver end for process, the data receiver end for process of central station and GPRS communication apparatus receive the electric network data of distribution substation or distribution terminal transmission, and the electric network data of reception imports distribution master station into through communications protocol conversion equipment;
Step 4, the control command that distribution master station sends sends to distribution substation by Big Dipper machine of commanding after communications protocol conversion equipment.
8., as claimed in claim 7 based on the electric power communication method of Beidou satellite communication system, it is characterized in that, step 2 comprises:
RS-485 communicates: RS-485 communication module adopts the mode cycle detection of inquiry mailbox whether to have Packet Generation or reception; If there are data to send, are then packaged into RS485 Packet Generation and go out; If there is data receiver, then complete and be stored into corresponding data buffering module according to type through resolution data bag after receiving packet;
RJ-45 communicates: the link that RJ-45 communication module completes in 104 stipulations connects; The mode cycle detection of inquiry mailbox is adopted whether to have Packet Generation or reception; If any data receiver, then receive 104 packets, and detect packet complete and resolve be stored into corresponding data buffering module respectively according to type.
9., as claimed in claim 7 based on the electric power communication method of Beidou satellite communication system, it is characterized in that, step 3 comprises:
Measuring and controlling equipment FTU/DTU after Ethernet carries out protocol conversion by communications protocol conversion equipment, imports the electric network data of collection into Big Dipper terminal or GPRS communication apparatus, or imports Big Dipper terminal and GPRS communication apparatus into simultaneously;
Electric network data is transferred to distribution substation or distribution main website respectively by Beidou satellite system and GPRS network by Big Dipper terminal and GPRS communication apparatus.
10. the electric power communication method based on Beidou satellite communication system as described in any one of claim 7-9, it is characterized in that, step 4 comprises:
Big Dipper commander's machine and GPRS communication apparatus receive the electric network data of distribution substation transmission, and the electric network data of reception imports main website server into through communications protocol conversion equipment; Or
The control command that distribution main website sends commands machine I to send to distribution substation by the Big Dipper after communications protocol conversion equipment.
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