CN102185382B - System and method for data communication between power distribution master station system and power distribution terminal - Google Patents
System and method for data communication between power distribution master station system and power distribution terminal Download PDFInfo
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- CN102185382B CN102185382B CN201110127723.4A CN201110127723A CN102185382B CN 102185382 B CN102185382 B CN 102185382B CN 201110127723 A CN201110127723 A CN 201110127723A CN 102185382 B CN102185382 B CN 102185382B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention discloses a system for data communication between a power distribution master station system and a power distribution terminal. The system comprises at least one wireless data collection terminal and an access point network (APN) transmission network, wherein the wireless data collection terminals are connected with the power distribution terminal one by on and used for collecting electric power information of grid primary equipment in the corresponding power distribution terminal, and transmitting the collected electric power information to a mobile communication network through a preset communication protocol, or transmitting command data received through the mobile communication network to the corresponding powder distribution terminal; and the APN transmission network is used for receiving the electric power information which is transmitted to the mobile communication network from each wireless data collection terminal according to the preset communication protocol and transmitting the electric powder information to the master station system or forwarding the command data transmitted by the master station system to the corresponding wireless data collection terminal through the mobile communication network. The invention also discloses a corresponding method for data communication between the distribution master station system and the distribution terminal. The system and method provided by the invention ensure the security and accuracy of data transmission and great reduction of communication cost.
Description
Technical field
The present invention relates to electric power system power distribution automation field, relate in particular to data communication system and method between a kind of distribution main station system and distribution terminal.
Background technology
The basis that electrical power distribution automatization system is implemented is that the primary equipment of power distribution network is monitored to control operation, and that power distribution network itself has is widely distributed, number of devices is large, the feature of geographical position of living in communication condition complexity.The terminal data collecting work of electrical power distribution automatization system is mainly realized by laying power optical fiber private network at present, also has part to adopt power line carrier, PLC mode to realize the collecting work of power distribution network primary equipment data.
The optical fiber communication extensively adopting in prior art, possess that reliability is high, safe, the feature of the high communication quality, yet, also there is the problem that investment is high, be difficult for expansion in this networking mode, especially widely distributed for power distribution network and transform feature frequently, make the private network communication cost up of power optical fiber.And for power line carrier, PLC, although its communications cost is low, because its communication quality is not high, fewer and feweri in actual applications.
In view of current electric power system is more and more stricter to cost control, communication security and communication quality are required to more next high situation, find a kind of ensure communication safety and the prerequisite of communication quality under reduce communications cost between power distribution automation main station system and distribution terminal data communication system be trend of the times.
Summary of the invention
Technical problem to be solved by this invention is: the data communication system between a kind of distribution main station system and distribution terminal is provided, this system can guarantee data security and accurately under prerequisite, greatly reduce the communications cost between power distribution automation main station system and distribution terminal, be conducive to realize power distribution automation in wide scope.
The further technical problem to be solved of the present invention is: the data communications method between a kind of distribution main station system and distribution terminal is provided, the method can guarantee data security and accurately under prerequisite, greatly reduce the communications cost between power distribution automation main station system and distribution terminal, be conducive to realize power distribution automation in wide scope.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A data communication system between distribution main station system and distribution terminal, this system includes:
At least one wireless data acquisition terminal, be connected one by one with distribution terminal, for gathering the power information of electrical network primary equipment in the distribution terminal corresponding with it, the power information collecting is sent in mobile communications network by default communication protocol or the director data that it is received by described mobile communications network sends to the distribution terminal corresponding with it;
Transmission network, for receiving after the power information that each wireless data acquisition terminal sends to described mobile communications network according to default communication protocol, described power information is sent to main station system or director data that described main station system is sent out is forwarded to corresponding wireless data acquisition terminal by described mobile communications network.
Wherein, described transmission network specifically includes GPRS routing node, electric power system routing node, is arranged on the APN special line between described GPRS routing node and electric power system routing node and is arranged on the APN special line fire compartment wall on described APN special line, wherein:
Described GPRS routing node is arranged in mobile communications network, establish a communications link by gre tunneling with the GGSN in mobile communications network, for forwarding the power information data from wireless data acquisition terminal to described electric power system routing node, or forward the director data from described electric power system routing node to described wireless data acquisition device;
Described electric power system routing node is arranged in power supply administration's electric power system data platform, and be connected with described main station system, for forwarding the director data from main station system to described GPRS routing node, or forward the power information data from described GPRS routing node to described main station system;
The power information data that described APN special line forwards to described electric power system routing node for transmitting described GPRS routing node, or transmit the director data that described electric power system routing node forwards to described GPRS routing node;
Described APN special line fire compartment wall is for carrying out security protection, IP address and ports filter to the data of transmitting on described APN special line.
Preferably, this system also includes a safety insulating device, be arranged between described main station system and electric power system routing node, for the director data that described main station system is sent, with binary form unidirectional delivery, to described electric power system routing node or by the power information data from described electric power system routing node, with text form unidirectional delivery, arrive described main station system.
Preferably, in described APN transmission network side, be provided with YiⅢ district advance data server, GaiⅢ district advance data server is connected between described electric power system routing node and described safety insulating device, for the director data from described safety insulating device that it is received resolve, framing send to described electric power system routing node; Or the power information data from described electric power system routing node that it is received is resolved, framing send to described safety insulating device;
In described main station system side, be provided with YiⅠ district advance data server, this I district advance data server is connected with described safety insulating device, and the director data sending for the described main station system that it is received is resolved, framing send to described safety insulating device; Or the power information data from described safety insulating device that it is received is resolved, framing send to described main station system.
Wherein, described safety insulating device specifically includes:
Positive physical isolation device, for arriving described III district advance data server by the director data from described I district advance data server with binary form unidirectional delivery;
Reverse physical isolation apparatus, for arriving described I district advance data server by the power information data from described III district advance data server with text form unidirectional delivery.
Correspondingly, the invention also discloses the data communications method between a kind of distribution main station system and distribution terminal, the method includes:
Data acquisition step, each wireless data acquisition terminal gathers the power information of electrical network primary equipment in coupled distribution terminal, and the power information collecting is sent in mobile communications network by default communication protocol, or when it receives the director data forwarding by described mobile communications network, described director data is sent to the distribution terminal corresponding with it;
Internet Transmission step, according to default communication protocol, receive after the power information that each wireless data acquisition terminal sends to described mobile communications network, described power information is sent to main station system or after receiving the director data that described main station system sends out, by described mobile communications network, is forwarded to corresponding wireless data acquisition terminal.
Wherein, described Internet Transmission step includes:
GPRS routing forwarding step, GGSN in GPRS routing node and mobile communications network establishes a communications link by gre tunneling, when the power information data receiving from described wireless data acquisition terminal, it is forwarded to electric power system routing node by APN special line, or when the director data receiving from described electric power system routing node, be forwarded to described wireless data acquisition terminal;
Electric power system routing forwarding step, described electric power system routing node is when the power information data receiving from described GPRS routing node, be transmitted to described main station system, or when the director data receiving from described main station system, it is forwarded to described GPRS routing node by described APN special line;
Between described GPRS routing forwarding step and electric power system routing forwarding step, also include:
APN special line firewall filtering step, carries out security protection, IP address and ports filter to the data of transmitting on described APN special line.
Preferably, the method also includes:
Safe isolation step, is arranged on safety insulating device between described main station system and electric power system routing node when receiving the director data that main station system sends, by its with binary form unidirectional delivery to described electric power system routing node; When the electric power data information receiving from described electric power system routing node, by its with text form unidirectional delivery to described main station system.
Preferably, the method also includes:
III district advance data receiving step, is arranged on APN transmission network CeⅢ district advance data server when the director data receiving from described safety insulating device, to its resolve, framing send to described electric power system routing node; Or when the power information data receiving from described electric power system routing node, to its resolve, framing send to described safety insulating device;
I district advance data receiving step, is arranged on described main station system CeⅠ district advance data server when receiving the director data that described main station system sends, to its resolve, framing send to described safety insulating device; Or when the power information data receiving from described safety insulating device, to its resolve, framing send to described main station system.
Wherein, described safe isolation step specifically includes:
Positive physical isolation step, positive physical isolation device when the director data receiving from described I district advance data server, by its with binary form unidirectional delivery to described III district advance data server;
Reverse physical isolation step, oppositely physical isolation apparatus when the electric power data information receiving from described III district advance data server, by its with text form unidirectional delivery to described I district advance data server.
The invention has the beneficial effects as follows:
Embodiments of the invention by arranging the APN transmission network that is exclusively used in transferring electric power system data in mobile communications network, utilize the communication data between this APN transmission network transmission distribution terminal and main station system, thereby the needs of communicating by letter between distribution terminal and power distribution automation main station system had both been met, met again the security protection requirement of electric power system about communication, guaranteeing data security and accurately under prerequisite, greatly reduce communications cost, be conducive to realize power distribution automation in wide scope.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the composition structure chart of the embodiment of data communication system between distribution main station system provided by the invention and distribution terminal;
Fig. 2 is the realization flow figure of the embodiment of data communications method between distribution main station system provided by the invention and distribution terminal.
Embodiment
Below with reference to Fig. 1, describe an embodiment of the data communication system between distribution main station system provided by the invention and distribution terminal in detail; As shown in the figure, the present embodiment mainly includes:
At least one wireless data acquisition terminal 1, be connected one by one with distribution terminal 2, for gathering the power information of the interior electrical network primary equipment of the distribution terminal corresponding with it 2, the power information collecting is sent in mobile communications network by default communication protocol or the director data that it is received by described mobile communications network sends to the distribution terminal corresponding with it 2;
During specific implementation, transmission network 3 can specifically include GPRS routing node 31, electric power system routing node 32, is arranged on the APN special line between GPRS routing node 31 and electric power system routing node 32 and is arranged on the APN special line fire compartment wall 33 on described APN special line, wherein:
GPRS routing node arranges 31 in mobile communications network, establish a communications link by gre tunneling with the GGSN in mobile communications network, for the power information data forwarding from wireless data acquisition terminal 1 to electric power system routing node 32, or the director data forwarding from electric power system routing node 32 to wireless data acquisition device 1;
Electric power system routing node 32 is arranged in power supply administration's electric power system data platform, and be connected with main station system 4, for the director data forwarding from main station system 4 to GPRS routing node 32, or the power information data forwarding from GPRS routing node 31 to main station system 4;
The power information data that described APN special line forwards to electric power system routing node 32 for transmitting GPRS routing node 31, or transferring electric power system routing node 32 is to the director data of GPRS routing node 31 forwardings;
And APN special line fire compartment wall 33 is for carrying out security protection, IP address and ports filter to the data of transmitting on described APN special line.
In addition, the present embodiment also can comprise a safety insulating device 5, it is arranged between main station system 4 and electric power system routing node 32, for the director data that main station system 4 is sent, with binary form unidirectional delivery, to electric power system routing node 32 or by the power information data from electric power system routing node 32, with text form unidirectional delivery, arrives main station system 4.
In addition, in APN transmission network 3 sides, be also provided with YiⅢ district advance data server 34, GaiⅢ district advance data server 34 is connected between electric power system routing node 32 and safety insulating device 5, for the director data from safety insulating device 5 that it is received resolve, framing send to electric power system routing node 32; Or the power information data from electric power system routing node 32 that it is received is resolved, framing send to safety insulating device 5;
In main station system 4 sides, be also provided with YiⅠ district advance data server 41, this I district advance data server 41 is connected with safety insulating device 5, and the director data sending for the main station system 4 that it is received is resolved, framing send to safety insulating device 5; Or the power information data from safety insulating device 5 that it is received is resolved, framing send to main station system 4.
During specific implementation, safety insulating device 5 can specifically include:
Positive physical isolation device 51, for by the director data from I district advance data server 41 with binary form unidirectional delivery DaoⅢ district advance data server 34;
Reverse physical isolation apparatus 52, for by the power information data from III district advance data server 34 with text form unidirectional delivery DaoⅠ district advance data server 41.
Describe the initialization procedure of APN transmission network 3 in the present embodiment below in detail.
A wireless data acquisition terminal 1 of each distribution terminal 2 configuration for power supply administration, and distribute special-purpose APN (Access Point NAME in mobile communications network Zhong Wei power supply administration, APN), SIM card for GPRS private network is opened this special use APN, obtain after special-purpose APN, give fixedly IP of the wireless data acquisition terminal 1 of all distribution terminal 2 correspondences and the inside of the electric power system data platform distribution APN of power supply administration transmission network.The wireless data acquisition terminal 1 of distribution terminal 2 correspondences is by Gateway GPRS Support Node (the Gateway GPRS Support Node of GPRS network inside, GGSN) server and Generic Routing Encapsulation (Generic Routing Encapsulation, GRE) tunnel forwards the GPRS routing node 31 in mobile communications network to, set up TCP/IP link with power supply administration electric power data center service platform, the communication of setting up a transfer of data connects.
Describe the safety measure of the present embodiment for guaranteeing that communication data adopts safely below in detail.
The present embodiment adopts maltilevel security strategy, on the one hand, adopts privately owned fixed ip address to carry out wide area and is connected, and adopt APN special line fire compartment wall 33 to carry out security protection, IP address and ports filter between GPRS routing node 31 and electric power system routing node 32.On the other hand, between power distribution automation main station system 4 and APN transmission network, increase safety insulating device 5, the uplink and downlink passage of network service is separately processed, data feedback channel disconnects physical link by reverse isolation device 52, and adopt character file to transmit data, meet the security protection requirement of electric power system, realized the safety access of distribution terminal in wide scope.Again on the one hand, in main station system 4 sides in the safe I of power automatic system district, I district advance data server 41 is set, and at the distribution terminal 2 in safe III district and APN transmission network 3 sides between main station system 4, III district advance data server 34 is set, between the wireless data acquisition terminal 1 of III district advance data server 34 and distribution terminal 2, setting up network TCP/IP is connected, and all adopt the communication mode of fixed ip address, communicate according to stipulations with distribution terminal 2, carry out parsing and the framing of normal transceiving data and stipulations and process.I district advance data server 41 communicates by positive physical isolation device 51, reverse physical isolation apparatus 52, I district advance data server 41 is by the advance data server 34 transfer operation orders of positive physical isolation device 51Xiang III district, such as to time order, always call order etc. together, after III district advance data server 34 resolve command, according to stipulations framing and send to distribution terminal 1; III district advance data server 34 receives after the real time data of distribution terminal 2, resolves, and result is sent to I district advance data server 41 with the form of text by data such as remote signalling, remote measurements by reverse isolation device 52 according to stipulations.Because the downlink data of power distribution automation main station system 4 is issued to distribution terminal 1 by forward spacer assembly 51, can stop APN transmission network 3 and send binary data to main station system 4 directions, and upstream data is delivered to main station system 4 by reverse isolation device 52 with text in form, also avoided on binary form, sending real time data, thereby cut off the possibility of setting up ascending physical signal link between the main station system 4 that is in the distribution terminal in safe III district and is in safe I district.
Below with reference to Fig. 2, describe the data communications method between distribution main station system provided by the invention and distribution terminal in detail, as shown in the figure, the data communication flow process that the present embodiment is realized between primary power distribution main station system and distribution terminal mainly includes:
Data acquisition step S1, each wireless data acquisition terminal gathers the power information of electrical network primary equipment in coupled distribution terminal, and the power information collecting is sent in mobile communications network by default communication protocol, or when it receives the director data forwarding by described mobile communications network, described director data is sent to the distribution terminal corresponding with it;
Internet Transmission step S2, according to default communication protocol, receive after the power information that each wireless data acquisition terminal sends to described mobile communications network, described power information is sent to main station system or after receiving the director data that described main station system sends out, by described mobile communications network, is forwarded to corresponding wireless data acquisition terminal.
During specific implementation, described Internet Transmission step S2 can include:
GPRS routing forwarding step S21, GGSN in GPRS routing node and mobile communications network establishes a communications link by gre tunneling, when the power information data receiving from described wireless data acquisition terminal, it is forwarded to electric power system routing node by APN special line, or when the director data receiving from described electric power system routing node, be forwarded to described wireless data acquisition terminal;
Electric power system routing forwarding step S22, described electric power system routing node is when the power information data receiving from described GPRS routing node, be transmitted to described main station system, or when the director data receiving from described main station system, it is forwarded to described GPRS routing node by described APN special line;
Between GPRS routing forwarding step S21 and electric power system routing forwarding step S22, also include:
APN special line firewall filtering step (not shown), carries out security protection, IP address and ports filter to the data of transmitting on described APN special line.
In addition, the present embodiment also can include:
Safe isolation step S3, is arranged on safety insulating device between described main station system and electric power system routing node when receiving the director data that main station system sends, by its with binary form unidirectional delivery to described electric power system routing node; When the electric power data information receiving from described electric power system routing node, by its with text form unidirectional delivery to described main station system.
In addition, the method also includes:
III district advance data receiving step S4, is arranged on APN transmission network CeⅢ district advance data server when the director data receiving from described safety insulating device, to its resolve, framing send to described electric power system routing node; Or when the power information data receiving from described electric power system routing node, to its resolve, framing send to described safety insulating device;
I district advance data receiving step S5, is arranged on described main station system CeⅠ district advance data server when receiving the director data that described main station system sends, to its resolve, framing send to described safety insulating device; Or when the power information data receiving from described safety insulating device, to its resolve, framing send to described main station system.
During specific implementation, described safe isolation step S4 can specifically include:
Positive physical isolation step S41, positive physical isolation device when the director data receiving from described I district advance data server, by its with binary form unidirectional delivery to described III district advance data server;
Reverse physical isolation step S42, oppositely physical isolation apparatus when the electric power data information receiving from described III district advance data server, by its with text form unidirectional delivery to described I district advance data server.
The data communications method that the present embodiment provides is completely corresponding with the data communication system of previous embodiment, and something in common, repeats no more.
Compared with prior art, the present invention has the following advantages:
1, only need utilize the public network of mobile communication to carry out terminal data access, this access way technology maturation, intelligent communications terminal cost are low, its extensibility is strong, networking is convenient, met the access on a large scale of distribution terminal, the compare data access of optical fiber private network, can reduce investment and maintenance cost greatly;
2, in mobile public network, set up APN private network, its sound review mechanism has guaranteed the fail safe of transfer of data, and transfer of data all realizes at APN private network, high safety; The legal audit of ID of the IP security audit of link establishment and data center server platform, dual audit has more guaranteed the fail safe of transfer of data.
3, the safety insulating device between electrical power distribution automatization system and APN private network, when meeting real-time Data Transmission requirement, guarantee the disconnection of physical network links and the connection of downlink data physical network of data uplink, met the safety requirements of power automatic system.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (8)
1. the data communication system between distribution main station system and distribution terminal, is characterized in that, this system includes:
At least one wireless data acquisition terminal, be connected one by one with distribution terminal, for gathering the power information of electrical network primary equipment in the distribution terminal corresponding with it, the power information collecting is sent in mobile communications network by default communication protocol or the director data that it is received by described mobile communications network sends to the distribution terminal corresponding with it;
Transmission network, for receiving after the power information that each wireless data acquisition terminal sends to described mobile communications network according to default communication protocol, described power information is sent to main station system or director data that described main station system is sent out is forwarded to corresponding wireless data acquisition terminal by described mobile communications network;
Wherein, described transmission network specifically includes GPRS routing node, electric power system routing node, is arranged on the APN special line between described GPRS routing node and electric power system routing node and is arranged on the APN special line fire compartment wall on described APN special line, wherein:
Described GPRS routing node is arranged in mobile communications network, establish a communications link by gre tunneling with the GGSN in mobile communications network, for forwarding the power information data from wireless data acquisition terminal to described electric power system routing node, or forward the director data from described electric power system routing node to described wireless data acquisition device;
Described electric power system routing node is arranged in power supply administration's electric power system data platform, and be connected with described main station system, for forwarding the director data from main station system to described GPRS routing node, or forward the power information data from described GPRS routing node to described main station system;
The power information data that described APN special line forwards to described electric power system routing node for transmitting described GPRS routing node, or transmit the director data that described electric power system routing node forwards to described GPRS routing node;
Described APN special line fire compartment wall is for carrying out security protection, IP address and ports filter to the data of transmitting on described APN special line.
2. the data communication system between distribution main station system as claimed in claim 1 and distribution terminal, it is characterized in that, this system also includes a safety insulating device, be arranged between described main station system and electric power system routing node, for the director data that described main station system is sent, with binary form unidirectional delivery, to described electric power system routing node or by the power information data from described electric power system routing node, with text form unidirectional delivery, arrive described main station system.
3. the data communication system between distribution main station system as claimed in claim 2 and distribution terminal, is characterized in that:
In APN transmission network side, be provided with YiIII district advance data server, GaiIII district advance data server is connected between described electric power system routing node and described safety insulating device, for the director data from described safety insulating device that it is received resolve, framing send to described electric power system routing node; Or the power information data from described electric power system routing node that it is received is resolved, framing send to described safety insulating device;
In described main station system side, be provided with an I district advance data server, this I district advance data server is connected with described safety insulating device, and the director data sending for the described main station system that it is received is resolved, framing send to described safety insulating device; Or the power information data from described safety insulating device that it is received is resolved, framing send to described main station system.
4. the data communication system between distribution main station system as claimed in claim 3 and distribution terminal, is characterized in that, described safety insulating device specifically includes:
Positive physical isolation device, for arriving described III district advance data server by the director data from described I district advance data server with binary form unidirectional delivery;
Reverse physical isolation apparatus, for arriving described I district advance data server by the power information data from described III district advance data server with text form unidirectional delivery.
5. the data communications method between distribution main station system and distribution terminal, is characterized in that, the method includes:
Data acquisition step, each wireless data acquisition terminal gathers the power information of electrical network primary equipment in coupled distribution terminal, and the power information collecting is sent in mobile communications network by default communication protocol, or when it receives the director data forwarding by described mobile communications network, described director data is sent to the distribution terminal corresponding with it;
Internet Transmission step, according to default communication protocol, receive after the power information that each wireless data acquisition terminal sends to described mobile communications network, described power information is sent to main station system or after receiving the director data that described main station system sends out, by described mobile communications network, is forwarded to corresponding wireless data acquisition terminal;
Wherein, described Internet Transmission step includes:
GPRS routing forwarding step, GGSN in GPRS routing node and mobile communications network establishes a communications link by gre tunneling, when the power information data receiving from described wireless data acquisition terminal, it is forwarded to electric power system routing node by APN special line, or when the director data receiving from described electric power system routing node, be forwarded to described wireless data acquisition terminal;
Electric power system routing forwarding step, described electric power system routing node is when the power information data receiving from described GPRS routing node, be transmitted to described main station system, or when the director data receiving from described main station system, it is forwarded to described GPRS routing node by described APN special line;
Between described GPRS routing forwarding step and electric power system routing forwarding step, also include:
APN special line firewall filtering step, carries out security protection, IP address and ports filter to the data of transmitting on described APN special line.
6. the data communications method between distribution main station system as claimed in claim 5 and distribution terminal, is characterized in that, the method also includes:
Safe isolation step, is arranged on safety insulating device between described main station system and electric power system routing node when receiving the director data that main station system sends, by its with binary form unidirectional delivery to described electric power system routing node; When the electric power data information receiving from described electric power system routing node, by its with text form unidirectional delivery to described main station system.
7. the data communications method between distribution main station system as claimed in claim 6 and distribution terminal, is characterized in that, the method also includes:
III district advance data receiving step, is arranged on APN transmission network Ce III district advance data server when the director data receiving from described safety insulating device, to its resolve, framing send to described electric power system routing node; Or when the power information data receiving from described electric power system routing node, to its resolve, framing send to described safety insulating device;
I district advance data receiving step, the I district advance data server that is arranged on described main station system side when receiving the director data that described main station system sends, to its resolve, framing send to described safety insulating device; Or when the power information data receiving from described safety insulating device, to its resolve, framing send to described main station system.
8. the data communications method between distribution main station system as claimed in claim 7 and distribution terminal, is characterized in that, described safe isolation step specifically includes:
Positive physical isolation step, positive physical isolation device when the director data receiving from described I district advance data server, by its with binary form unidirectional delivery to described III district advance data server;
Reverse physical isolation step, oppositely physical isolation apparatus when the electric power data information receiving from described III district advance data server, by its with text form unidirectional delivery to described I district advance data server.
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| CN201110127723.4A CN102185382B (en) | 2011-05-16 | 2011-05-16 | System and method for data communication between power distribution master station system and power distribution terminal |
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| CN102325193A (en) * | 2011-09-29 | 2012-01-18 | 贵州电网公司六盘水供电局 | Power dispatching automation communication system |
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