CN104243595B - A kind of power information acquisition system and its method based on IPv6 - Google Patents
A kind of power information acquisition system and its method based on IPv6 Download PDFInfo
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Abstract
The present invention relates to a kind of power information acquisition system and its method based on IPv6, the system comprises intelligent measurement equipment, intelligent acquisition router, acquisition main websites；The acquisition main website passes through intelligent acquisition router and intelligent measurement equipment end-to-end communication；It is communicated end to end between intelligent measurement equipment in the local network.The method includes (1) intelligent acquisition router acquisition main websites to issue control instruction；(2) intelligent acquisition router forwards control instruction to intelligent measurement equipment；(3) intelligent electric meter obtains control instruction and is back to intelligent acquisition router after acquiring data；(4) intelligent acquisition router selects route pattern；(5) intelligent acquisition router collects and stores metric data；(6) intelligent acquisition router forwards metric data to acquisition main website.
Description
Technical field
The present invention relates to a kind of power information acquisition system, in particular to a kind of power information based on IPv6 acquires system
System and its method.
Background technique
Existing power information acquisition system, including main website, substation, intelligent electric meter and the communication network between them.
Wherein substation mainly includes collector and concentrator.In hierarchical system network, local network (LAN) connects intelligent electric meter and concentration
Device, and concentrator then passes through wide area network (WAN) and is connected with main website.Main website usually carries out concentration deployment by province or a certain area, main
System of standing is communicated with concentrator obtains intelligent electric meter (acquisition tasks), and concentrator acquires the collection process of data.During this,
The communication of concentrator uplink and downlink requires to parse the dedicated specification of electric power by the application program in concentrator.Wide area network is common
Communication mode be power optical fiber private network or 2G/3G public communication network.The common communication mode of local network is based on wired
Bus communication, low-voltage powerline carrier communication (PLC) and micropower radio frequency network of connection etc..Currently, typical electricity consumption
Information acquisition system is using above-mentioned system mostly.
The communication module used in the equipment such as intelligent electric meter, concentrator due to different vendor's production is in physical layer, data
Link layer etc. does not follow unified codes and standards, leads to do not have compatibility and interchangeability between module, thus causes to set
Standby upgrading, maintenance and replacement etc. are at high cost；Scalability is bad, can neither support that user side is distributed in current smart grid
The new business such as power generation and energy storage, electric car charging can not also combine together with the following ubiquitous Internet of Things；Main station system is to logical
Not independent of capturing service, function is weak for communication network supervision, in the management of intelligent element network state, network failure probing, sets
Standby asset management and network information security certification, supervision and flow control etc. lack good supervision.
Summary of the invention
In view of the deficiencies of the prior art, a kind of new intelligence with functions such as routing, exchanges based on IPv6 of the present invention
Router can be acquired instead of existing concentrator.The equipment can be led in intelligent electric meter (or other intelligent measurement equipments) with acquisition
The standardized survey grid network of collection capacity end to end of a support IPv6 is constructed between standing.In the intelligence such as intelligent electric meter, sensor
Using the plug and play power communication module with IPv6 function on measurement equipment, there is independent IP address, can be used as network element
It is managed by network management unit.The increase of main website part is acquired independently of the acquisition network management unit of capturing service, realization pair
The functions such as whole network equipment state, malfunction monitoring and Qos.Using the acquisition network of full IPization, acquisition main station system is not only realized
End-to-end communication between intelligent electric meter, and various smart machines in the home network can also be led to end to end
Letter, realizes the interoperability between local device.
The purpose of the present invention is adopt the following technical solutions realization:
A kind of power information acquisition system based on IPv6 is set it is improved in that measuring the system comprises intelligence
Standby, intelligent acquisition router, acquisition main website；
The acquisition main website includes power information acquisition processing module and network management module；
The intelligence measurement equipment includes the intelligent measurement equipment with IPv6 plug and play power communication module comprising
Intelligent electric meter, sensor and other user side metering devices；
The intelligent acquisition router includes concentrator and router；
The acquisition main website passes through intelligent acquisition router and intelligent measurement equipment end-to-end communication；
It is communicated end to end between intelligent measurement equipment in the local network.
Preferably, the power information acquisition processing module includes automatic data acquisition unit, acquisition Data Management Unit
With advanced application；
The network management module includes acquisition network management unit.
Further, the acquisition network management unit, the large-scale ip v6/IPv4 for being constituted to network communication equipment
The wide area heterogeneous communications network of endpoint carries out equipment condition monitoring, QoS, flow control, Remote configuration, software version management and peace
The control of full identifying procedure.
Preferably, the systematic electricity communication module includes the independent address IPv6, which supports to obtain automatically from network
It takes and is manually specified, for the local network between module and module and between module and intelligent acquisition router；
The local network medium includes power line carrier, broadband over power line, tower or latticed less radio-frequency net
Network.
Preferably, the power communication module includes route pattern and terminal pattern；
Under terminal pattern, power communication module is by intelligent acquisition router and the end to end communication for acquiring main website, only
Sending and receiving processing is carried out to the message of local node；
Under route pattern, power communication module is supported the packet sending and receiving of local node and is supported to the other nodes received
Message be forwarded.
6, a kind of power information acquisition system based on IPv6 as described in claim 1, which is characterized in that the intelligence
Router is acquired under router mode, completes mutually converting and forwarding for IPv6 message in network layer and data link layer；With
Pass through built-in power communication agreement period acquisition and storage under concentrator mode.
The present invention is based on a kind of power information acquisition method based on IPv6 that another object provides, improvements exist
In, the method includes
(1) intelligent acquisition router acquisition main website issues control instruction；
(2) intelligent acquisition router forwards control instruction to intelligent measurement equipment；
(3) intelligent electric meter obtains control instruction and is back to intelligent acquisition router after acquiring data；
(4) intelligent acquisition router selects route pattern；
(5) intelligent acquisition router collects and stores metric data；
(6) intelligent acquisition router forwards metric data to acquisition main website.
Preferably, the step (1) includes that acquisition main website sends information collection instruction and transmitted by wide area network, intelligence
Acquisition router flanks the control instruction issued from Wide Area Network.
Preferably, intelligent measurement equipment is the intelligence with IPv6 plug and play power communication module in the step (2)
Measurement equipment comprising intelligent electric meter, sensor and other use metering device.
Preferably, the step (2) includes that intelligent acquisition router passes through the device identification of acquisition and control information originally
Ground network is transmitted to intelligent measurement equipment.
Preferably, the step (3) includes that intelligent measurement equipment passes through power communication module reception intelligent acquisition routing
The device identification and control information that device is sent, according to the acquisition data that the meter reading descending protocol pre-seted obtains, and pass through local
Network returns to intelligent acquisition router.
Preferably, the step (4) includes intelligent acquisition router selection communication pattern, is entered with router communication mode
Step (6)；(5) are entered step with concentrator communication pattern.
Preferably, the step (5) is included under concentrator mode, built-in power communication protocol period acquisition and storage,
In the case where down channel communication is unstable, intelligent electric meter automatic transcription will first acquire data local cache, and wait master to be collected
Calling together for standing is surveyed or is reported automatically.
Compared with the prior art, the invention has the benefit that
(1) the end-to-end Base communication framework of IPization can solve current power communication module multiple standards and proprietary protocol
The problem of bring compatibility and interchangeability difference, reduces the maintenance cost of acquisition system；
(2) local communication has good scalability, and power communication module can support a variety of smart machines to access, while mould
Interconnecting between block can preferably meet the new demand that Utilities Electric Co. carries out user side demand response and various value-added services；
(3) the acquisition network management unit for acquiring main website enhances the powerline network management for currently lacking or being weakened
Modular capabilities, and improve installation, debugging, the operation, maintenance and management efficiency of acquisition network.
Detailed description of the invention
Fig. 1 is a kind of physical structure schematic diagram of the power information acquisition system based on IPv6 provided by the invention.
Fig. 2 is that a kind of power information acquisition system power communication module operating mode based on IPv6 provided by the invention shows
It is intended to.
Fig. 3 is IPv6 intelligent acquisition router communication pattern diagram provided by the invention.
Fig. 4 is a kind of power information acquisition method flow chart based on IPv6 provided by the invention.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of power information acquisition system based on IPv6 of the present invention, including intelligent measurement equipment, intelligence
Acquire router, acquisition main website and the full IPization communication network between them.
Intelligent measurement equipment contain support IPv6 plug and play power communication module, between module and module with
And local network is carried out between module and intelligent acquisition router.Each power communication module possesses an independent IPv6
Address, address are supported to obtain and be manually specified from network automatically.The available communication media of local network include power line carrier,
Broadband over power line, tower or latticed radio frequency network etc..It is such as sufficiently sharp according to the physical condition or other demands on installation ground
With existing infrastructure, network throughput or SLA requirement etc., can with adaptation to local conditions select most efficient and least cost
Communication media.
Power communication module be it is a kind of with independent IP address, be mounted on acquisition network in magnanimity intelligent electric meter or
Power communication module on other intelligent measurement equipments.The power communication module has been used uniformly IPv6 agreement in network layer, packet
Containing the multiple communication interface communication mode different with data link layer with compatible physical.It is mounted with the intelligence of the power communication module
Energy ammeter can not only be directly accessed communication network and acquisition main website carries out two-way interactive, and power communication module end to end
Between without by acquisition main website local end-to-end communication can be realized, change traditional acquisition main website and only carried out with concentrator
The mode of communication.By local end-to-end communication, which has the function of management user's indoor network (HAN),
Can be used as indoor gateway management, other include the electrical equipment of sensor or controller.The power communication module be it is standardized,
The equipment such as the negative control of distributed generation resource and energy storage, electric car charge and discharge, large user with this power communication module are ok
By seamless access local communication network.
Intelligent acquisition router be it is a kind of integrate routing and former acquisition function, by addressing and selected in acquisition network
Optimal network path is selected, the network equipment of end-to-end communication between acquisition main website and intelligent electric meter is established.Meanwhile it also can be used as
The intelligent electric meter access device and local network Communication Gateway of standard.In current electric power information collection system, concentrator has
The function of specification parsing, the packet sending and receiving of application layer, but it and the router feature without network layer, therefore by concentrator
The local network of establishment must use electric power specialized protocol to be communicated.This networking mode inevitably brings private ownership
With closure.Intelligent acquisition router of the present invention has then used open and standard IP protocol, and downlink message is standard respectively thereon
IPv6 message and 6LoWPAN (IPv6over IEEE802.15.4) message.Router is only complete in network layer and data link layer
At the mutual conversion of message, specification parsing is not carried out using the service of application layer, therefore not by the local network of its establishment
It is limited to certain electric power specialized protocol again, has good scalability, it can be with the shared money of the internet of things of current fast development
Source, to save overlapping investment.Moreover, the intelligent acquisition router can be provided and statelessly be automatically configured, so that local network connects
Connecing quickly to establish.Since current wide area network side IPv6 technology is not yet completely universal, intelligent acquisition router uses double stacks
Technology is to be compatible with IPv4/IPv6.Meanwhile the intelligent acquisition router uses the security architecture and 6LoWPAN of IPSec
The AES-128 encryption standard of interplantation, certification and security mechanism can meet the needs of system security reliability.
Acquiring main website is mutually to separate power information acquisition processing module with the business of network management module.Wherein, electricity consumption
The acquisition processing module business of information is mainly made of automatic data acquisition unit, acquisition Data Management Unit and advanced application.
Network management module business is then completed by independent acquisition network management unit.The communication construction of IPization is used in whole system
Afterwards, all electric power acquisition equipment in system (intelligent acquisition router, power communication module etc.) are also support standard simultaneously
The network communication equipment of network management module agreement SNMPv3 can be used as IP network member by general network management system management.It is described
Acquisition network management unit is mainly used for the wide area isomery of the large-scale ip v6/IPv4 endpoint constituted to these network communication equipments
Communication network carries out the control of equipment condition monitoring, QoS, flow control, Remote configuration, software version management and security authentication process
System.
Such as Fig. 2, there are two types of operating modes: route pattern and terminal pattern for the power communication module tool.
Under terminal pattern, power communication module carries out end to end communication by intelligent acquisition router and acquisition main website,
Sending and receiving processing only is carried out to the message of local node.
Under route pattern, power communication module not only supports the packet sending and receiving of local node, also support to receive its
The message of its node is forwarded.Route pattern is by supporting double stack multicasts of IGMP/MLD agreement to realize.This
Information sharing under mode in local network is received and dispatched without by acquisition main website, can be saved network bandwidth and be guaranteed Service Quality
Amount, the in place interaction control being highly suitable between sensor and controller equiment.
The function that power communication module has has:
(1) router discovery and refresh function are sent out in any node with its father node disconnecting or network topology
In the case where changing, the automatic refreshing of routing table, and automatic searching other nodes into network can be rapidly completed, re-establish
Network communication；
(2) network security function, the addition of any node require to support safety certification, and refusal non-authentication node illegally adds
Enter communication network；
(3) data security feature acquires storing and transmitting for data, can be calculated using the encryption for the safety that industry is generally acknowledged
Method is encrypted；
(4) the remote upgrade function of wired and wireless connection, when upgrading, can use OTA (Over The Air
Technology) over the air.
Such as Fig. 3, the intelligent acquisition router has concentrator, router, two kinds of communication patterns can be used.
Intelligent acquisition router connects for establishing end-to-end communication between acquisition main website and intelligent electric meter as general
Enter equipment and local communication gateway.The router can complete the mutual conversion of the IPv6 message and 6LowPan message of standard, on
Row support directly or indirectly connects IPv6 public network by the modes such as Eth optical electrical mouth, GRPS/3G/LTE, MVPLC, supports standard
The routing of IPv6 and message forwarding；Downlink provides SubGHz RF communication capacity, supports the wireless power with the meter terminal on periphery
Communication module constructs cordless communication network, and supports the transmitting-receiving of carrying 6LowPan message on an rf channel.
Under router mode, it only needs to complete the mutual conversion of IPv6 message in network layer and data link layer and turn
Hair, carries out specification parsing without the service using application layer, to solve power communication module core chip multiple standards
With the problem of proprietary protocol bring compatibility and interchangeability difference.
Under concentrator mode, it can pass through built-in a variety of power communication agreement period acquisition and storages.Believe in downlink
In the case that road communication is unstable, it can first carry out local cache to intelligent electric meter automatic transcription, and by acquisition data, then
Calling survey together or automatically report etc. main website to be collected.The reason of retaining concentrator mode is mainly to communicate in down channel unstable
In the case where can also meet data acquisition success rate requirement.
The other function that intelligent acquisition router has further include:
(1) it can provide and statelessly automatically configure, have the foundation and managerial ability of wireless network, can establish and manage
The RF MESH network of a SubGHz is safeguarded to ensure the stability and robustness of wireless network；
(2) network security function provides firewall, provides authentication to login user, and channel radio is added for application
The terminal node for believing net, there is Authentication mechanism, and cordless communication network is illegally added in refusal non-authentication node；
(3) data security feature, the Encryption Algorithm for the safety generally acknowledged using industry support the storage of the acquisition data of encryption
And transmission；
(4) local and remote maintenance functions support OTA remote upgrade, it is possible to provide log and alarm.
The maximum allowable access capacity of intelligent acquisition router is up to 5000 endpoints.By intelligent acquisition router and multiple
The local communication network of the power communication module composition is in IP layers of completion network routing, it is not limited to certain physical layer
Or the implementation of data link layer.The compatible different communication technology of this novel local communication network, communication speed and
Communication media, and extended capability is retained to following new technology.Intelligent acquisition router is mountable in cell power distribution room, shaft tower
Joint in upper, substation or on other some facilities, as local network and wide area network.
Acquisition main website mutually separates power information acquisition processing module with the business of network management module.Intelligent acquisition routing
Device and power communication module support the network management module agreement SNMPv3 of standard, and one can be used as under the premise of safety
IP network member is managed by power information acquisition network management unit.This frame by network management module and application layer system separation
Structure has good scalability.Network infrastructure can be shared, and can support a variety of application services of Utilities Electric Co..Use telecommunications
Breath acquisition network management unit has five Xiang Jiben of Fault Management, Configuration Management, Accounting Management, Performance Management, Security Management
Function, user, which need not carry out additional configuration, to be intuitively monitored and safeguard on network management graphical interfaces.Wherein:
Fault management capability includes:
(1) event of failure is collected, the monitoring of filtering and relevant communication network；
(2) in communication network power equipment device status monitoring and malfunction elimination；
(3) a variety of rule process based on threshold value are supported, it can be with the discovery and treatment mechanism of customized alert event；
(4) each endpoint for acquiring network and its topological structure can be visualized in GIS map；
(5) identification for allowing the customized event of failure of Utilities Electric Co., handles and is transmitted to other systems, such as outage management system
System；
(6) problem automatic tracing can be carried out according to the event of collection.
Configuration management function includes:
(1) software and firmware upgrade based on ATO can be executed to live power communication module and intelligent acquisition router；
(2) configuration management of centralization is realized, supports RBAC access control based roles；
(3) flexible device packets option is provided and carries out unified configuration using grouping.
Accounting management function includes:
(1) use for recording all-network resource distributes information, such as flow, ACL accesses control list, firewall filtering letter
Breath etc.；
(2) the interface statistics other information for supporting user to provide.
Performance management function includes:
(1) can in GIS map real-time display performance information；
(2) the acquisition data acquisition system of standard can be customized according to the specific demand of electric system；
(3) it provides to exception reporting and visual GIS map in real time based on the rules processing engine of threshold value；
(4) customizable data frequency acquisition, and generate historical record report.
Safety management function includes:
(1) user is provided and accesses movable log information for audit, is checked and safety accident management；
(2) zero configuration, intelligent acquisition router and intelligent electric meter be fully automated, safe access deployment is supported
Mode；
(3) facility level and AAA and the RADIUS authentication integrated are provided, and malice is attempted to communication network device and is connect
Enter to provide alarm；
(4) safety management of user's private data is realized using the secure authentication technology of PKI.
Furthermore the system provides API and (such as power information acquires Data Management Unit, fault management system with other systems
System) interface support.
The present invention is sufficiently combined data management and network management module by acquiring main website in power information acquisition system
Embodiment, realize power information acquisition network in the monitoring of equipment state, channel status, safety certification, QoS take
The functions such as business, fault diagnosis effectively enhance the communication network management modular capabilities for currently lacking or being weakened, reduce operation
And maintenance cost, improve the intelligent level of field operation and system administration.
The RF communication channel of SubGHz has can be used in power communication module of the present invention, supports the RF that a SubGHz is added
MESH network, and the transmitting-receiving of carrying 6LoWPan message is supported on an rf channel.
Embodiment
Such as Fig. 4, a kind of power information acquisition method detailed process based on IPv6 of the present invention is as follows:
1, acquisition main website sends information collection and instructs and transmitted by wide area network.
2, intelligent acquisition router flanks the control instruction issued from Wide Area Network, obtain Intelligent target ammeter or its
After the mark of his non-meter equipment, the mark and control information are transmitted to user side metering device by local network.
3, intelligent electric meter and other non-meter equipment are sent by power communication module reception intelligent acquisition router
Device identification and control information, return according to the acquisition data that the meter reading descending protocol pre-seted obtains, and by local network
Give intelligent acquisition router.
4, intelligent acquisition router receives the acquisition data of user side return and prepares to upload.
5, specifically acquisition data forwarding, need to according to the practical stability of communication channel and requirement of real-time of data etc.,
The communication pattern of one of router or concentrator is taken to carry out in intelligent acquisition router.
6, final, intelligent acquisition router will acquire data by Wide Area Network and upload to the entire acquisition of acquisition main website completion
Process.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field can still modify to a specific embodiment of the invention referring to above-described embodiment or
Equivalent replacement, these are applying for this pending hair without departing from any modification of spirit and scope of the invention or equivalent replacement
Within bright claims.
Claims (2)
1. a kind of power information acquisition system based on IPv6, which is characterized in that the system comprises intelligent measurement equipments, intelligence
Acquire router, acquisition main website；
The acquisition main website includes power information acquisition processing module and network management module；
The intelligence measurement equipment includes the intelligent measurement equipment with IPv6 plug and play power communication module comprising intelligence
Ammeter, sensor and other user side metering devices；
The intelligent acquisition router includes concentrator and router；
The acquisition main website passes through intelligent acquisition router and intelligent measurement equipment end-to-end communication；
Wherein, it is communicated end to end between intelligent measurement equipment in local network；
The power information acquisition processing module includes automatic data acquisition unit, acquisition Data Management Unit and advanced application；
The network management module includes acquisition network management unit；
The wide area of the acquisition network management unit, the large-scale ip v6/IPv4 endpoint for constituting to network communication equipment is different
Structure communication network carries out equipment condition monitoring, QoS, flow control, Remote configuration, software version management and security authentication process
Control；
The systematic electricity communication module includes the independent address IPv6, which supports to obtain automatically from network and manually refer to
It is fixed, for the local network between module and module and between module and intelligent acquisition router；
The local network medium includes power line carrier, broadband over power line, tower or latticed radio frequency network；
The power communication module includes route pattern and terminal pattern；
Under terminal pattern, power communication module is by intelligent acquisition router and the end to end communication for acquiring main website, only to this
The message of ground node carries out sending and receiving processing；
Under route pattern, power communication module supports the packet sending and receiving of local node and supports the report to the other nodes received
Text is forwarded；
The intelligent acquisition router completes mutually turning for IPv6 message under router mode, in network layer and data link layer
It changes and forwards, carry out specification parsing without the service using application layer；With pass through built-in power communication under concentrator mode
Agreement period acquisition and storage, in the case where down channel communication is unstable, it can be to intelligent electric meter automatic transcription, and incites somebody to action
Acquisition data first carry out local cache, then wait for calling together for acquisition main website and survey or report automatically；
Intelligent acquisition router has then used open and standard IP protocol, thereon downlink message be respectively standard IPv6 message and
6LoWPAN message；
Router only completes the mutual conversion of message in network layer and data link layer, is not carried out using the service of application layer
Specification parsing；
Router can complete the mutual conversion of the IPv6 message and 6LowPan message of standard, and uplink is supported to pass through Eth optical electrical
Mouth, GRPS/3G/LTE or MVPLC mode directly or indirectly connect IPv6 public network, and the routing of standard IPv6 and message is supported to turn
Hair；Downlink provides SubGHz RF communication capacity, supports to construct channel radio with the wireless power communication module of the meter terminal on periphery
Communication network, and the transmitting-receiving of carrying 6LowPan message is supported on an rf channel；
Local communication network by intelligent acquisition router and multiple power communication module compositions is in IP layers of completion networking
Routing, it is not limited to the implementation of certain physical layer or data link layer；
Intelligent acquisition router is mounted on cell power distribution room, on shaft tower or in substation, the friendship as local network and wide area network
Meeting point；
Acquisition main website mutually separates power information acquisition processing module with the business of network management module；
Intelligent acquisition router and power communication module support the network management module agreement SNMPv3 of standard, can be in safety
Under the premise of managed as IP network member by power information acquisition network management unit.
2. a kind of power information acquisition method based on IPv6, which is characterized in that the method includes
(1) intelligent acquisition router acquisition main website issues control instruction；
(2) intelligent acquisition router forwards control instruction to intelligent measurement equipment；
(3) intelligent electric meter obtains control instruction and is back to intelligent acquisition router after acquiring data；
(4) intelligent acquisition router selects route pattern；
(5) intelligent acquisition router collects and stores metric data；
(6) intelligent acquisition router forwards metric data to acquisition main website；
The step (1) includes that acquisition main website sends information collection instruction and transmitted by wide area network, intelligent acquisition router
The control instruction issued is flanked from Wide Area Network；
Intelligent measurement equipment is the intelligent measurement equipment with IPv6 plug and play power communication module in the step (2),
Including intelligent electric meter, sensor and other use metering device；
The step (2) includes that the device identification of acquisition and control information are transmitted to by intelligent acquisition router by local network
Intelligent measurement equipment；
The step (3) includes the equipment that intelligent measurement equipment receives the transmission of intelligent acquisition router by the power communication module
Mark and control information, according to the acquisition data that the meter reading descending protocol pre-seted obtains, and return to intelligence by local network
Router can be acquired；
The step (4) includes intelligent acquisition router selection communication pattern, enters step (6) with router communication mode；With
Concentrator communication pattern enters step (5)；
The step (5) is included under concentrator mode, built-in power communication protocol period acquisition and storage, logical in down channel
Believe it is unstable in the case where, intelligent electric meter automatic transcription, first will acquire data local cache, wait main website to be collected call together survey or from
It is dynamic to report.
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| CN107864097B (en) * | 2018-01-30 | 2022-03-01 | 国网辽宁省电力有限公司 | Power utilization data distribution method and system |
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