CN111917182A - Method and system for directly transmitting data of double main stations of low-voltage distribution network - Google Patents

Method and system for directly transmitting data of double main stations of low-voltage distribution network Download PDF

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Publication number
CN111917182A
CN111917182A CN202010645248.9A CN202010645248A CN111917182A CN 111917182 A CN111917182 A CN 111917182A CN 202010645248 A CN202010645248 A CN 202010645248A CN 111917182 A CN111917182 A CN 111917182A
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data
network
master station
distribution network
layer
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CN111917182B (en
Inventor
马春雷
冯义
姬源
田昕泽
徐长宝
张腾飞
徐宏伟
曾青毅
万会江
晋斌
凌宗洋
李鹏程
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2213/00—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network
    • H02J2213/10—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network using simultaneously two or more different transmission means
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • 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
    • Y04S40/121—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 the power network as support for the transmission
    • 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
    • Y04S40/124—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 wired telecommunication networks or data transmission busses
    • 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 method and a system for directly transmitting data of double main stations of a low-voltage distribution network, which comprises the following steps of respectively constructing a communication network of a distribution transformer monitoring terminal, a distribution network automation main station and a metering automation main station in the low-voltage distribution network; acquiring operation data of the low-voltage distribution network by using the distribution transformer monitoring terminal; the distribution transformer monitoring terminal transmits the operation data to a distribution network automation master station and transmits the operation data to a metering automation master station; and the verification terminal judges whether the operation data uploaded by the distribution transformer monitoring terminal is complete or not and stores verification information in a trusted third party. The invention has the beneficial effects that: the data acquisition of the distribution network automation master station and the metering automation master station can be realized simultaneously, the integrity of the data acquired by the two master stations can also be verified, and the accuracy and the reliability of the data are ensured while the real-time property of the data acquired by the distribution network automation master station is ensured.

Description

Method and system for directly transmitting data of double main stations of low-voltage distribution network
Technical Field
The invention relates to the technical field of data transmission of a power distribution network, in particular to a method for directly transmitting data of double master stations of a low-voltage power distribution network.
Background
Distribution and transformation data of the distribution automation main station system are from a GIS system, a metering automation system and a marketing system. The metering automation system and the marketing system data are processed by the quasi-real-time data platform and the main data platform respectively and then are sent to the main station, but the distribution network automation main station obtains the data after data forwarding has longer time delay, and the requirements of real-time fault location and electric power quick recovery of the distribution network cannot be met. Therefore, the distribution transformer monitoring terminal directly transmits data to the metering main station and the distribution network automation main station, so that real-time data transmission is realized, and the operation quality of the distribution network is improved.
The existing low-voltage distribution network is subjected to data acquisition by a metering system and then forwards the data to a mass data platform or other data operation centers, and a distribution network automation master station can only obtain distribution transformation operation data from the mass data platform or the data operation centers. However, after the mass data platform forwards, the data delay exceeds 1 hour, so that the requirements of power supply bureau production and power grid scheduling on services such as real-time power distribution network fault location, power distribution network maintenance, electric power quick recovery, power distribution data analysis and the like cannot be met.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned conventional problems.
Therefore, the technical problem solved by the invention is as follows: the method for directly transmitting the data of the two main stations of the low-voltage distribution network can simultaneously transmit the data to the distribution network automation main station and the metering automation main station, complete integrity verification of the data and ensure the integrity and accuracy of the data transmission to the two main stations.
In order to solve the technical problems, the invention provides the following technical scheme: a method for directly transmitting data of double main stations of a low-voltage distribution network comprises the following steps of respectively constructing communication networks of a distribution transformer monitoring terminal, a distribution network automation main station and a metering automation main station in the low-voltage distribution network; acquiring operation data of the low-voltage distribution network by using the distribution transformer monitoring terminal; the distribution transformer monitoring terminal transmits the operation data to a distribution network automation master station and transmits the operation data to a metering automation master station; and the verification terminal judges whether the operation data uploaded by the distribution transformer monitoring terminal is complete or not and stores verification information in a trusted third party.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: the method comprises the following steps that a communication network of the distribution transformer monitoring terminal and a distribution network automation master station is constructed, wherein a backbone layer adopts optical fiber communication, and an annular networking is adopted between a convergence layer and a core layer; the access layer adopts a hybrid networking of an Ethernet passive optical network and a wireless private network; the core power supply area terminal is connected with an access layer through the equipment of the Ethernet passive optical network; and other regional terminals are interconnected with a base station of an access layer through a wireless interface, and the access layer is connected with the backbone layer through a special optical fiber communication network.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: the access layer also comprises a mixed network of an Ethernet passive optical network and a wireless private network, wherein the core area places optical line terminal equipment for communication of the Ethernet passive optical network in a network distribution substation room, an optical network unit is placed near or integrated with terminal detection equipment, and other areas are interconnected with a base station of the access layer through a wireless interface.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: the communication network of the distribution network automation main station also comprises a communication substation, wherein the communication substation is responsible for gathering data information frames of each communication terminal of the access layer, recombining the data information frames and converting the data information frames into data transmitted by the backbone layer, and the communication substation has the necessary control function, error detection and synchronization, routing selection and transmission safety function for completing data transmission.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: the convergence layer and the core layer comprise the convergence layer which is used as a convergence point of a plurality of access layer devices, the convergence layer is accessed to the core layer at multiple points, the construction of a transmission device networking on the core layer is completed by adopting an annular structure, and all communication data from the access layer devices are processed; the core layer network is a main part for finishing high-speed data exchange, and is connected with a regional core router, and transmission equipment provides high-speed exchange and aggregation of all flows to quickly forward data packets; the communication master station acquires data through the core layer and directly sends the data to the distribution network automation master station side through a private line of a public network provider, and security supporting facilities accessed to authentication are uniformly considered by the distribution network automation master station.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: the distribution transformer monitoring terminal transmits the acquired operation data to the metering automation master station through GPRS communication, and the method comprises the following steps that a front acquisition server receives the operation data from the distribution transformer monitoring terminal; the data access layer receives original message data of a preposed acquisition server and transmits a command to the preposed acquisition server; the data analysis layer analyzes the original message data according to the requirement of the metering automation master station to generate various electricity utilization data in a uniform format; the data processing layer processes the various power utilization data and generates business data of various user data and report data according to the requirement of the target master station; and the database interface layer processes the generated service data and stores the service data in a database.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: the database interface layer classifies and summarizes all the service data, converts the data according to a format required by batch warehousing provided by the database, and performs warehousing of the batch data according to a certain period or rule.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: and the verification end provides a regular verification function of the data by using a data security storage model and taking each part of electric power service operator as a trusted third party.
As a preferred scheme of the low-voltage distribution network dual-master station data direct transmission method of the present invention, the method comprises: the verification end comprises the following steps that the trusted third party periodically sends integrity verification request information to the two master stations; the master station calculates the data information of the data block with the larger weight according to the weight of each data block and returns the calculation result to the trusted third party; and the trusted third party verifies according to the calculation result returned by the master station and judges whether the operation data transmitted by the distribution transformer monitoring terminal is complete or not.
The invention solves another technical problem that: a double-master-station data direct transmission system of a low-voltage distribution network is provided, and the method is realized by depending on the system.
In order to solve the technical problems, the invention provides the following technical scheme: a low-voltage distribution network double-master-station data direct transmission system comprises a distribution transformer monitoring terminal, a distribution network automation master station, a metering automation master station and a verification end; the distribution transformer monitoring terminal is used for acquiring the operation data of the low-voltage distribution network; the distribution network automation master station and the metering automation master station can be connected with the distribution transformer monitoring terminal through a communication network and receive the uploaded operation data; the verification terminal is connected with the distribution transformer monitoring terminal and used for judging whether the operation data is complete or not and storing verification information in a trusted third party by using a data security storage model.
The invention has the beneficial effects that: the data acquisition of the distribution network automation master station and the metering automation master station can be realized simultaneously, the integrity of the data acquired by the two master stations can also be verified, and the accuracy and the reliability of the data are ensured while the real-time property of the data acquired by the distribution network automation master station is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic flow chart of a data direct sending method according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of an EPON networking according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of GPRS networking according to a first embodiment of the present invention;
fig. 4 is a schematic diagram of a backbone layer ring-shaped networking of a power distribution network according to a first embodiment of the present invention;
fig. 5 is a schematic diagram of an access layer EPON networking of the distribution network according to the first embodiment of the present invention;
fig. 6 is a schematic diagram of a first embodiment of a power distribution network access layer wireless private network networking;
fig. 7 is a schematic diagram of a power distribution network data integrity verification model according to a first embodiment of the present invention;
fig. 8 is a schematic structural diagram of a communication principle of a data direct transmission system according to a second embodiment of the present invention;
fig. 9 is a schematic diagram of an overall structure of a data direct transmission system according to a second embodiment of the present invention;
fig. 10 is a schematic block diagram of a data forwarding system according to a second embodiment of the present invention;
fig. 11 is a schematic diagram illustrating distribution of time consumption for data transmission according to a third embodiment of the present invention;
fig. 12 is a schematic time-consuming diagram of a data transmission method according to a third embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially in general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Meanwhile, in the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operate, and thus, cannot be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to the schematic diagram of fig. 1, the present embodiment provides a method for directly transmitting data of two main stations of a low-voltage distribution network, where data acquired by an existing main station of the distribution network is forwarded through a mass data platform, and the method has a long time delay and is different from a data acquisition mode of the existing main station of the distribution network. In the existing low-voltage distribution network, a metering system is used for data acquisition, and then data are forwarded to a mass data platform or other data operation centers, and a distribution network automation master station can only obtain distribution transformation operation data from the mass data platform or the data operation centers.
But the stable operation of the distribution network is crucial and an hour of data delay may have serious consequences for the maintenance of the distribution network. Therefore, the method provided by the embodiment can simultaneously send the data to the distribution network main station and the metering automation main station, the data does not need to be forwarded through a data platform, the real-time fault location and the quick electric power recovery of the distribution network can be met, the simultaneous implementation of the power grid information acquisition and the power grid scheduling is met, and the stability of the distribution network is improved. Meanwhile, the method provides a data integrity verification method to detect whether the data information is tampered or destroyed in the transmission and storage process. And by utilizing the data security storage model, the electric power service operators of all the parts are used as trusted third parties to provide a function of regularly verifying data.
The method for directly transmitting the data of the two main stations of the low-voltage distribution network not only can realize that the distribution network automation main station and the metering automation main station simultaneously acquire the data, but also can verify the integrity of the data acquired by the two main stations, and can ensure the accuracy and reliability of the data while ensuring the real-time property of the data acquired by the distribution network automation main station.
After the double-master-station data direct transmission system is provided, the distribution network automation master station and the metering master station synchronously acquire the operation data of the power distribution network, fault location and power grid scheduling can be carried out timely, and the stability of the power distribution network can be improved to a great extent. Data can not be deleted or modified accidentally or deliberately by unauthorized persons in the process of network transmission and storage, and the consistency of the received information and the sent information is ensured, so that the integrity verification of the data acquired by the network distribution automation master station and the metering master station is provided, and the integrity and the correctness of the data acquired by the master station are ensured.
Further, referring to the schematic diagrams of fig. 2 to 7, in this embodiment, a method for directly transmitting data of two master stations of a low-voltage distribution network is provided, which includes the following steps:
s1: and respectively constructing communication networks of the distribution transformer monitoring terminal 100, the distribution network automation master station 200 and the metering automation master station 300 in the low-voltage distribution network. The step of constructing the communication network between the distribution transformer monitoring terminal 100 and the distribution network automation master station 200 includes the following steps,
the backbone layer adopts optical fiber communication, a ring-shaped networking is adopted between the convergence layer and the core layer, the backbone layer communication preferably adopts an optical transmission network, and the protection functions of a link layer and a service layer of the optical transmission network are fully utilized to form an IP network with dynamic routing roundabout capability. When other application systems share the backbone network, the backbone network should have the capability of supporting a Virtual Private Network (VPN); the backbone layer adopts optical fiber communication, and the convergence layer and the core layer have alternative schemes of ring-type networking structures and star-type networking structures. The ring networking scheme is schematically shown in fig. 2, and adopts a core layer and convergence layer dual-ring structure. The structure has the advantages that multiple accesses can be carried out on data, and the 1+1 standby data transmission is convenient to realize for ensuring the stability of a communication network.
The access layer adopts ethernet passive optical network and wireless private network to mix the network deployment, and the access layer can adopt multiple communication modes such as optic fibre private network, power line carrier, wireless communication (private network, public network) to should consider communication network management system's construction, dilatation and transformation in step, realize the unified management of distribution communication system, for example: (1) and (3) optical fiber private network: the number of cores of the distribution communication optical cable is required to meet design requirements and be reserved properly, the optical fiber private network is required to have corresponding detection and management functions, and a service port is required to be convenient for the access of a distribution terminal. (2) Power line carrier: the method comprises the steps that for areas which are difficult to cover in optical fiber communication, a cable shielding layer carrier communication mode can be adopted, and a coupling mode which is convenient to construct and reduces line power failure is preferably adopted under the condition of ensuring transmission performance; (3) wireless private network: the frequency band of the wireless private network communication system is required to meet the regulations of the national radio management committee; the wireless private network communication mode is suitable for selecting a broadband technology which meets the international standard and is supported by multiple manufacturers, and has a user priority management function; the wireless information access should meet the requirements of safety protection regulations and have strict safety protection strategies. (4) Wireless public network communication: the wireless public network communication mode meets the requirements of safety protection and reliability regulation, adopts reliable safety isolation and authentication measures, supports user priority management, and is suitable for establishing high-reliability network connection with an operator in a private line mode.
A power distribution terminal (mainly comprising a TTU, a DTU, an FTU and the like) in a core power supply area is connected with an access layer through equipment of an Ethernet passive optical network;
the power distribution terminals (mainly including TTU, DTU, FTU and the like) in other areas are interconnected with the base station of the access layer through wireless interfaces, the access layer is connected with the backbone layer through a special optical fiber communication network, and it is understood that different networking is adopted for the power distribution terminals in the core area and other areas, but the types of the power distribution terminals are basically the same.
It should be noted that, the access layer adopts a hybrid networking of the ethernet passive optical network and the wireless private network, the core area (referred to as a power supply area) places the optical line terminal device for the ethernet passive optical network communication in the network distribution substation room, the optical network unit is placed near or integrated with the terminal detection device, and the other areas are interconnected with the base station of the access layer through the wireless interface.
The communication substation is responsible for gathering the data information frames of each communication terminal of the access layer, recombining the data information frames and converting the recombined data information frames into data transmitted by the backbone layer, and completing the control function, error detection and synchronization, routing selection and transmission safety functions necessary for transmitting the data.
The convergence layer is used as a convergence point of a plurality of access layer devices, the multiple points of the convergence layer are accessed into the core layer, the construction of a transmission device networking on the core layer is completed by adopting an annular structure, and all communication data from the access layer devices are processed;
the core layer network is the main part for completing high-speed data exchange, and is connected with the regional core router, and the transmission equipment provides high-speed exchange and aggregation of all flows to quickly forward data packets;
the communication master station acquires data through the core layer and directly sends the data to the distribution network automation master station side through a private line of a public network provider, and security supporting facilities accessed to authentication are uniformly considered by the distribution network automation master station 200.
S2: the distribution transformer monitoring terminal 100 is used for collecting operation data of the low-voltage distribution network, such as real-time measurement data of current, voltage, video-loaded power, power factors and the like, for example, more than 20 real-time measurement data including total/split-phase active/inactive power, current, voltage, video-loaded power, power factors and the like;
s3: the distribution transformer monitoring terminal 100 transmits the operation data to the distribution network automation master station 200, and transmits the operation data to the metering automation master station 300. And the communication from the distribution transformer monitoring terminal to the distribution network automation master station is realized by utilizing an EPON (Ethernet passive optical network) ring-shaped networking scheme and a wireless private network networking scheme.
In the step, an access layer of the distribution network automatic communication system adopts a mode of communication between the EPON and a wireless private network to ensure the safe, reliable and comprehensive coverage of communication information. The scheme has the greatest characteristic of taking the core power supply area into consideration of the requirements of communication reliability and communication coverage rate in other areas. The EPON technology has the advantages of high optical fiber utilization rate and stable and reliable communication, is mainly used for a power supply core area with higher requirement on communication reliability, can allow a plurality of terminal devices to access the system through a wireless private network, has simple access mode and simple and flexible networking, and is suitable for improving the communication coverage rate of areas outside the core area. Therefore, the communication networking scheme of the whole distribution network is that a terminal in a core power supply area is connected into an access layer through EPON equipment, terminals in other areas are interconnected with a base station of the access layer through wireless interfaces, and the access layer is connected with a backbone layer through a special optical fiber communication network, so that the functions of communication resource management, related service scheduling and the like are realized.
Further, the distribution transformer monitoring terminal 100 transmits the operation data to the distribution network automation master station 200 by constructing a communication network between the distribution transformer monitoring terminal 100 and the distribution network automation master station 200, and transmits the collected operation data to the metering automation master station 300 by GPRS communication, and the transmission to the metering automation master station 300 specifically includes the following steps,
the preposed acquisition server receives operation data from the distribution transformer monitoring terminal 100;
the data access layer receives original message data of the preposed acquisition server and transmits a command to the preposed acquisition server;
the data analysis layer analyzes the original message data according to the requirement of the metering automation master station 300 to generate various electricity consumption data in a uniform format;
the data processing layer processes various power utilization data and generates business data of various user data and report data according to the requirements of the target master station;
the database interface layer processes the generated service data (to the various user data and report data) and stores the service data in the database.
The database interface layer classifies and summarizes various types of service data, converts the data according to a format required by batch warehousing provided by the database, and performs warehousing of the batch data according to a certain period or rule.
In this step, it should be noted that GPRS is a transmission method for data through different frequencies, and is based on an IP protocol and supports a TCP/IP protocol according to data communication over a channel with the same frequency. The user will have exclusive possession of the radio channel throughout the connection, whether or not data is being transmitted. If a packet switched mode is used, the user using the channel occupies the channel resources only when transmitting and receiving data.
S4: the verification terminal 400 judges whether the operation data uploaded by the distribution transformer monitoring terminal 100 is complete or not, and stores verification information in a trusted third party.
It should be noted that, in this step, the verification end 400 provides a periodic data verification function by using the data security storage model and using the electric power service operators of each party as trusted third parties.
Specifically, the verifying terminal 400 includes the following verifying steps,
a trusted third party periodically sends integrity verification request information to two master stations;
the master station calculates the data information of the data block with the larger weight according to the weight of each data block and returns the calculation result to the trusted third party;
and the trusted third party verifies according to the calculation result returned by the master station and judges whether the operation data transmitted by the distribution transformer monitoring terminal 100 is complete or not.
Further, the more specific verification process is as follows:
the distribution transformer monitoring terminal 100 sends data to a regional network, the regional network generates data identifiers for all the collected data, sends the data and the identifiers to a central network, and then sends the data and the identifiers to the distribution network automation master station 200 and the metering automation master station 300;
the distribution network automation master station 200 and the metering automation master station 300 receive data and data identifications acquired in real time and sent by the distribution transformer monitoring terminal 100, and store the data in a data block mode;
sending the basic information of the data and the generated public key to a trusted third party, and storing the received data by the trusted third party;
a trusted third party periodically initiates verification challenges to a distribution network automation master station and a metering automation master station according to basic information of data;
the distribution automation master station 200 and the metering automation master station 300 return the proof of the challenge to the trusted third party in a response mode;
the trusted third party verifies the integrity of the data and sends the result to the distribution transformer monitoring terminal 100.
In this embodiment, the distribution transformer data collected by the improved distribution transformer detection terminal can be completely and accurately transmitted to the metering automation master station 300 and the distribution network automation master station 200 at the same time. The metering automation master station 300 can comprehensively collect and analyze the real-time information of the electricity demand side. The distribution network automation master station 200 can also simultaneously acquire the state quantity and analog quantity of the power grid, such as protection action condition, current power and the like, so as to monitor the running condition of the power distribution network in real time, detect and judge a fault section in real time, isolate a fault area and recover normal area power supply; on the other hand, the accuracy of the data acquired by the distribution network automation master station can be ensured through data integrity verification, and the condition that the master station is mistakenly operated due to the fact that the data is tampered, damaged or even lost in the transmission process is avoided.
The convergence layer is equivalent to a device concentration point, and is used for converging devices of the access layer, and a plurality of devices are connected to the core layer and adopt a ring structure, so that the devices form a core layer network together, and all received information is processed. This structure can receive data from multiple points during data transmission, and can ensure the stability of communication network.
The optical fiber ethernet communication method has many unique advantages, such as high transmission speed and flexibility, and the communication method is relatively simple in networking, and is not difficult in design. The TTU realizes the interconnection with the Ethernet through the Ethernet port, the power distribution terminal collects real-time data information, then transmits the real-time data information to the Ethernet, the real-time data information is transmitted to the substation through the Ethernet optical ring network, the communication substation receives the data information to classify the information, then accesses the scheduling data network, and finally transmits the information to each system.
The TD-LTE remarkably improves the frequency efficiency and the data transmission speed. The wireless communication system has higher speed and bidirectional transmission capability than other wireless communication technologies, and the TD-LTE can have higher uplink speed and lower downlink speed and is suitable for data transmission of a distribution network automation system. The TD-LTE communication coverage is wide, the time delay is low, and the requirement of a power distribution terminal in a medium and low voltage distribution network on the time delay can be met. For the security of the network, the TD-LTE system further improves the TD-SCDMA security mechanism, and greatly improves the reliability of the communication system.
Example 2
Referring to the illustrations of fig. 8 to 10, the illustration shows that the system for directly transmitting data of two master stations of the low-voltage distribution network provided in this embodiment includes a distribution transformer monitoring terminal 100, a distribution network automation master station 200, a metering automation master station 300, and a verification end 400; the distribution transformer monitoring terminal 100 is used for acquiring operation data of the low-voltage distribution network; the distribution network automation master station 200 and the metering automation master station 300 can be connected with the distribution transformer monitoring terminal 100 through a communication network and receive the uploaded operation data; the verification terminal 400 is connected to the distribution transformer monitoring terminal 100, and is configured to determine whether the operation data is complete, and store verification information in a trusted third party by using a data security storage model.
The process of the system in this embodiment is as follows: the distribution transformer monitoring terminal 100 sends data to a regional network, the regional network generates data identifiers for all collected data, sends the data and the identifiers to a central network, and then sends the data and the identifiers to the distribution network automation master station 200 and the metering automation master station 300. The distribution network automation master station 200 and the metering automation master station 300 receive the data and the data identification sent by the distribution transformer monitoring terminal 100, and store the data in a data block mode. And sending the basic information of the data and the generated public key to a trusted third party, and storing the received data by the trusted third party. The trusted third party periodically issues verification challenges to the distribution network automation master station 200 and the metering automation master station 300 according to the basic information of the data. The distribution automation master station 200 and the metering automation master station 300 return proof of the challenge to the trusted third party in response. The trusted third party verifies the integrity of the data and sends the result to the distribution transformer monitoring terminal 100.
The low-voltage distribution network is used as the tail end of a power system, has the characteristics of wide distribution range, complex power supply and consumption environment and difficult operation and maintenance, and is very important for effective monitoring and timely maintenance. The embodiment selects a communication mode and a networking scheme between the power distribution terminal and the master station. The double-master-station data direct transmission system can realize that the TTU transmits monitored data to the distribution network automation master station in time, and can realize real-time acquisition of the station area data, analysis and calculation, real-time scheduling, reduction of power failure time and early discovery of hidden dangers.
Example 3
For verifying the effect obtained by the present invention, referring to fig. 11 to 12, for the operation data such as current, voltage, active power, reactive power, power factor and the like collected by the power distribution terminals, burst transmission or 5s periodic polling is generally adopted, the length of each information is about 2 to 6 bytes, if power is supplied to 40 10 kv feeders according to 1 substation, 20 switchhouses/integrated houses, public transformer houses and the like in each feeder are provided on average, 10 power distribution terminals are provided for each power house, each power distribution terminal has 20 operation data, the transmission network bandwidth is 500kbit/s for estimation, the data upload of each terminal needs about 20 × 10 × 20 × 2 ÷ 16s to 20 × 10 × 20 × 6 ÷ 500 ÷ 48s, and the automation of transmitting the data to the main station of the power distribution network by the power distribution terminals only needs several minutes. The method is characterized in that the data are sent to a distribution network automation main station in a traditional data transmission mode and mainly divided into two parts, namely the data are sent to a metering main station from a power distribution terminal, and the time t is probably consumed1(t1Typically a few minutes) and the process of forwarding from the distribution terminal to the distribution network automation master station via the data operation center and the mass data platform, perhaps taking a time t2(t2Generally, one hour is consumed), it is seen that unnecessary delay is caused by forwarding through the data platform, and the requirements of real-time positioning of power distribution network faults and quick power restoration are difficult to meet. The data direct transmission systematization of the double main stations is provided, and the power distribution terminal can simultaneously transmit the data to the metering main station and the power distributionThe network automation master station may have a difference in transmission time due to a difference in communication networks, but a delay of several minutes at most exists, and the delay of more than one hour does not affect the stable operation of the power system.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, the operations of processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein. A computer program can be applied to input data to perform the functions described herein to transform the input data to generate output data that is stored to non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
As used in this application, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being: a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of example, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. A method for directly transmitting data of double main stations of a low-voltage distribution network is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
respectively constructing communication networks of a distribution transformer monitoring terminal (100), a distribution network automation master station (200) and a metering automation master station (300) in a low-voltage distribution network;
collecting operation data of the low-voltage distribution network by using the distribution transformer monitoring terminal (100);
the distribution transformer monitoring terminal (100) transmits the operation data to a distribution network automation master station (200) and transmits the operation data to a metering automation master station (300);
the verification terminal (400) judges whether the operation data uploaded by the distribution transformer monitoring terminal (100) is complete or not, and stores verification information in a trusted third party.
2. The method for directly transmitting data of the low-voltage distribution network double main stations as claimed in claim 1, wherein: the construction of the communication network of the distribution transformer monitoring terminal (100) and the distribution network automation master station (200) comprises the following steps,
the backbone layer adopts optical fiber communication, and a ring-shaped networking is adopted between the convergence layer and the core layer;
the access layer adopts a hybrid networking of an Ethernet passive optical network and a wireless private network;
the power distribution terminal of the core power supply area is connected with the access layer through the equipment of the Ethernet passive optical network;
and power distribution terminals in other areas are interconnected with a base station of an access layer through wireless interfaces, and the access layer is connected with the backbone layer through a special optical fiber communication network.
3. The low-voltage distribution network dual-master station data direct transmission method as claimed in claim 2, characterized in that: the access stratum also includes a layer of a network,
the optical line terminal equipment for the Ethernet passive optical network communication is arranged in a network distribution substation room by adopting the hybrid networking of the Ethernet passive optical network and the wireless private network, the optical network unit is arranged near or integrated with the terminal detection equipment, and other areas are interconnected with the base station of the access layer through a wireless interface.
4. The method for directly transmitting data of the double main stations of the low-voltage distribution network according to claim 2 or 3, characterized in that: the communication network with the distribution automation master station (200) further comprises communication substations,
the communication substation is responsible for gathering the data information frames of each communication terminal of the access layer, recombining the data information frames and converting the data information frames into data transmitted by the backbone layer, and the communication substation has the necessary control function, error detection and synchronization, routing selection and transmission safety function for completing data transmission.
5. The low-voltage distribution network dual-master station data direct transmission method of claim 4, characterized in that: the convergence layer and the core layer comprise,
the convergence layer is used as a convergence point of a plurality of access layer devices, the convergence layer is accessed to the core layer in a multi-point mode, the construction of a transmission device networking on the core layer is completed by adopting an annular structure, and all communication data from the access layer devices are processed;
the core layer network is a main part for finishing high-speed data exchange, and is connected with a regional core router, and transmission equipment provides high-speed exchange and aggregation of all flows to quickly forward data packets;
the communication master station acquires data through the core layer and directly sends the data to the distribution network automation master station side through a private line of a public network provider, and security supporting facilities accessed to authentication are uniformly considered by the distribution network automation master station (200).
6. The method for directly transmitting the data of the low-voltage distribution network double main stations as claimed in any one of claims 1 to 3 or 5, wherein the method comprises the following steps: the communication network with the distribution transformer monitoring terminal (100) is used for transmitting the collected operation data to the metering automation master station (300) through GPRS communication, and comprises the following steps,
the preposed acquisition server receives the operation data from the distribution transformer monitoring terminal (100);
the data access layer receives original message data of a preposed acquisition server and transmits a command to the preposed acquisition server;
the data analysis layer analyzes the original message data according to the requirement of the metering automation master station (300) to generate various electricity utilization data in a uniform format;
the data processing layer processes the various power utilization data and generates business data of various user data and report data according to the requirement of the target master station;
and the database interface layer processes the generated service data and stores the service data in a database.
7. The method for directly transmitting data of the low-voltage distribution network double main stations as claimed in claim 6, wherein: the database interface layer includes a layer of a database interface,
and classifying and summarizing all kinds of service data, converting the data according to a format required by batch warehousing provided by the database, and performing warehousing of the batch data according to a certain period or rule.
8. The method for directly transmitting data of the low-voltage distribution network double main stations as claimed in claim 7, wherein: the verification end (400) provides a regular data verification function by using a data security storage model and taking each part of electric power service operators as a trusted third party.
9. The method for directly transmitting data of the double main stations of the low-voltage distribution network according to claim 7 or 8, characterized in that: the authentication end (400) comprises the steps of,
the trusted third party sends integrity verification request information to the two master stations periodically;
the master station calculates the data information of the data block with the larger weight according to the weight of each data block and returns the calculation result to the trusted third party;
and the trusted third party verifies according to the calculation result returned by the master station and judges whether the operation data transmitted by the distribution transformer monitoring terminal (100) is complete or not.
10. The utility model provides a two main website data of low voltage distribution network directly send system which characterized in that: the distribution network automatic monitoring system comprises a distribution transformer monitoring terminal (100), a distribution network automatic master station (200), a metering automatic master station (300) and a verification terminal (400);
the distribution transformer monitoring terminal (100) is used for acquiring operation data of the low-voltage distribution network;
the distribution network automation master station (200) and the metering automation master station (300) can be connected with the distribution transformer monitoring terminal (100) through a communication network and receive the uploaded operation data;
the verification terminal (400) is connected with the distribution transformer monitoring terminal (100) and used for judging whether the operation data is complete or not and storing verification information in a trusted third party by using a data security storage model.
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