CN104067570A - Data transmission and control in power grid control system - Google Patents
Data transmission and control in power grid control system Download PDFInfo
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- CN104067570A CN104067570A CN201280018043.1A CN201280018043A CN104067570A CN 104067570 A CN104067570 A CN 104067570A CN 201280018043 A CN201280018043 A CN 201280018043A CN 104067570 A CN104067570 A CN 104067570A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2858—Access network architectures
- H04L12/2861—Point-to-multipoint connection from the data network to the subscribers
Abstract
Disclosed are a data processing method, apparatus, and system in a power grid control system. The power grid control system comprises an access network terminal device, multiple power terminals, and a power server. The power terminals are respectively connected to multiple electricity meters of a power distribution grid at one end, and are connected to one or more serial ports on the access network terminal device at another end. The access network terminal device is connected to the power server, and the one or more serial ports are corresponding to a channel between the access network terminal device and the power server. The provided method comprises: the access network terminal device receiving data information of the multiple power terminals; the access network terminal device acquiring identification information of the multiple power terminals, and encapsulating the identification information and the data information of the multiple power terminals into one or more data frames; and the access network terminal device sending the one or more data frames to the power server through the common channel.
Description
Data transfer and control technology field in power grid control system
The present invention relates to communication technical field, and in particular to the data transfer and control method of a kind of power grid control system and the equipment and system for realizing this method.Background technology
It is well known that a power system is made up of the part such as generating, transmission of electricity, power transformation, distribution, electricity consumption and scheduling, production for electric energy, conveys, distribute and use.
Power system is also referred to as power network, and modern power network widely develops to the direction of intelligent power network.Intelligent power network is to be combined advanced sensing measurement technology, ICT, analysis decision technology, automatic control technology and electricity power technology, and with power network infrastructure it is highly integrated formed by new-modernization power network.The integrated use of communication, information and modern management technology, power equipment service efficiency can be improved, reduce electric energy loss, make operation of power networks more economical and efficient, while the service mode by setting up two-way interaction, user can understand power supply capacity, the quality of power supply, electricity price situation and outage information in real time, reasonably using electrical equipment.Electric power enterprise can also obtain the detailed power information of user, and more value-added services are provided for it.
One kind of intelligent power network is implementation is such that the node in power network is covered by communication network.Preferably, it is all nodes in power network is all covered by communication network.Current situation is, the upstream portion of general power network, including the link such as generating, transmission of electricity, power transformation, it is already possible to realize the covering of communication network, but downstream part includes the covering that the links such as distribution and electricity consumption do not fully achieve communication network also.So, for the intellectuality of power network, the link such as the distribution of power network and electricity consumption is the emphasis for needing to pay close attention to, and in communication network device, optical network device, such as similar ONU (Optical Network Unit, optical network unit）Deng available for the communication network covering for realizing power network downstream part.
Under this demand, have ONU and OLT (Optical Line Terminal, optical line terminal in the prior art）Equipment constitutes chain type topology network or ring topology network to cover the distribution and electricity consumption link of power network, utilizes existing communication network technology such as EPON（Passive Optical Network, PON) distribution of power network and electricity consumption link management are got up, so as to reach all standing of power network.
Fig. 1 is the example for the intelligent grid that a communication network is combined with power distribution network.As shown in Figure 1, power distribution network 100 (including one or more transformer stations 110 and the power distribution room 130 for being equipped with transformer 132) is transmitted electricity by power line 120 to user, the power consumption of one or more users is recorded by electric energy meter 210, and the data of electric energy meter and/or the status information of user (are also known as electric power terminal by collector 220）Take to concentrate and be supplied to electrical supplier, electrical supplier is collected the electricity charge using the data of collection or is made other control operations.Collector 220 is connected with communication network, and the communication network shown in this example is EPON（), PON it may also be other similar communication networks.PON300 is a chain network being made up of multiple inactive components such as ONU310, OLT320 and ODN (Optical Distribution Network, ODN) 330.ONU310 in PON300 is connected by serial ports with gathering the collector 220 of electric energy meter data.Collector 220 can be DTU (Data Terminal Unit, data terminal unit）Or RTU (Remote Terminal Unit, remote-terminal unit）.Collector 220 can only connect an electric energy meter, but in most of application scenarios, collector needs to connect multiple electric energy meters 210.The data message of collector 220 enters PON300, and by carrying communication network（Such as IP bearer networks 400) electrical power services device 500 is transferred to, electrical power services device 500 obtains each power consumer from these data messages（Such as domestic consumer, enterprise customer etc.）Power information, and concentrate electric energy meter reading carried out to user, electricity consumption status monitoring, remote control and regulation, the management operation such as failture evacuation.
Collector 220 need to receive and send the data for meeting serial ports form, in up direction（From collector to the direction of electrical power services device）, ONU310 needed to change the data that meet serial ports form so that these data can be transmitted in a communication network, and in down direction, then need the data format that can receive the data conversion from communication network into collector 220.Specifically, in up direction, the data that serial ports comes are packaged into TCP (Transmission Control Protocol, transmission control protocol)/IP (Internet Protocol, Internet Protocol by ONU310）Data flow, identifies serial port with port numbers, transmits upstream to IP bearer networks 400 by Ρ Ο Ν 300, electrical power services device 500 is transferred to by IP bearer networks 400;In down direction, ONU310 is then that the TCP/IP data flows of IP bearer networks 400 are reduced into the data flow for meeting serial ports form, according to the corresponding relation of TCP link identifications and serial port, data frame is sent to corresponding collector 220, so as to complete the communication between electrical power services device 500 and collector 220.
In the prior art, need electrical power services device that the corresponding relation of serial port between collector 220 and ONU310 is managed, so it is accomplished by a serial ports correspondence one TCP/UDP (User Datagram Protocol, user datagram protocol）Link, belongs to 1:1 virtual connections pair.In actual use, an electrical power services device needs to manage multiple collectors, due to having multiple collectors and depositing, between each collector and ONU
The TCP/UDP for setting up a serial ports is needed to link, multiple serial ports need to so be used, waste IP resources can be compared, and if when electrical power services device only supports to set up a TCP/UDP connection, can cause ONU that a serial ports can only be used to be connected with collector.The content of the invention
One embodiment of the present of invention provides a kind of data transfer and control method for power distribution network, one power grid control system includes access network terminal device, multiple electric power terminals and electrical power services device, the multiple electric power terminal is connected with the multiple data producing nodes or data output device of power distribution network respectively at one end, it is connected respectively with one or more serial ports on the access network terminal device in the other end, the access network terminal device is connected with the electrical power services device, a passage between one or more of serial ports and the access network terminal device and the electrical power services device is corresponding, methods described includes：
The access network terminal device receives the data message of the multiple electric power terminal by one or more of serial ports；
The access network terminal device obtains the identification information of the multiple electric power terminal, and the data message of the identification information of the multiple electric power terminal and the multiple electric power terminal is encapsulated into one or more data frames；
One or more of data frames are sent to the electrical power services device by the access network terminal device by the passage.
Further, it can also include before the data message of the identification information of the multiple electric power terminal and the multiple electric power terminal is encapsulated into one or more data frames：
According to the IP address of the identification information of the passage acquisition access network terminal device, the identification information of the IP address of the electrical power services device and the passage corresponding port on the access network terminal device, the identification information of the IP address of the access network terminal device, the IP address of the electrical power services device and the port is used for the frame head for constituting one or more of data frames.
Wherein, it is described specifically to be included according to the IP address of the identification information of the passage acquisition access network terminal device, the identification information of the IP address of the electrical power services device and the passage corresponding port on the access network terminal device：
The configuration information preserved on the access device is inquired about, the configuration information preserves the mark of the passage
Know information and the IP address, the IP address of the electrical power services device, the corresponding relation of the identification information of the port of the access network terminal device.
Further, the data message by the identification information of the multiple electric power terminal and the multiple electric power terminal in the present embodiment is encapsulated into one or more data frames and can specifically included：
The data message of the identification information of the multiple electric power terminal and the multiple electric power terminal is divided into multiple entity packages into the payload of one or more of data frames, each entity can include the identification information and corresponding data message of an electric power terminal.
Further, the data message by the identification information of the multiple electric power terminal and the multiple electric power terminal in the present embodiment is encapsulated into one or more data frames and can specifically included：
Just the blunt identification information according to the multiple electric power terminal generates multiple Tag for being used to identify electric power terminal;
The data message of the multiple Tag and the multiple electric power terminal is constituted into multiple entity packages into the payload of one or more of data frames, data message of each entity comprising a Tag and correspondence electric power terminal.
Wherein, each Tag can the identification information comprising electric power terminal, connect on the access network terminal device electric power terminal port identification information and the equipment identification information of the access network terminal device.
Wherein, just the multiple Tag for being used to identify electric power terminal of the blunt identification information generation according to the multiple electric power terminal can be specifically included：
The port numbers for the data message for receiving electric power terminal are obtained, the corresponding relation of the identification information of port numbers and electric power terminal are inquired about using the port numbers of acquisition, so as to obtain the identification information of multiple electric power terminals；
Utilize the multiple Tag for being used to identify electric power terminal of the equipment identification information generation of corresponding port numbers and the access network terminal device on the identification information of multiple electric power terminals of the acquisition, the access network terminal device.
Further, it can also include before the port numbers for obtaining the data message for receiving electric power terminal, the corresponding relation for the identification information for inquiring about serial port and electric power terminal using the port numbers of acquisition：
Receive the first frame of data information of electric power terminal, the identification information for the port that first frame of data information is received on the identification information and the access network terminal device of the electric power terminal carried in first frame of data information is obtained, the mark for the port that first frame of data information is received on the identification information and the access network terminal device of the electric power terminal carried in first frame of data information is preserved on the access network terminal device
Know the corresponding relation of information.
Access network terminal device (700) a kind of according to an embodiment of the invention, including：
One or more user-side ports（70), for connecting multiple electric power terminals（82);
Receiving converter（72), for receiving the multiple electric power terminal by one or more of user-side ports（82) data message, the user-side port is serial ports；
Processor（74) receiving converter, is connected（72), for obtaining the identification information of the multiple electric power terminal, the data message of the identification information of the multiple electric power terminal and the multiple electric power terminal is encapsulated into one or more data frames；
Electrical power services device port（76) ,-end connection processor（74), other end connection electrical power services device（84), the electrical power services device port（76) with the electrical power services device（84) passage is provided between（85), the passage（85) one or more of user-side ports, the electrical power services device port are corresponded to（76) it is used to one or more of data frames passing through the passage（85) it is sent to electrical power services device（ 84 ).
Further, the data frame is the data frame of ethernet format, the processor（74) can be specifically for by the multiple electric power terminal（82) identification information and the multiple electric power terminal（82) data message is divided into multiple entity packages into the payload of one or more of data frames, and each entity includes the identification information and corresponding data message of an electric power terminal.
Further, the processor can also be specifically for according to the multiple electric power terminal（82) the multiple Tag for being used to identify electric power terminal of identification information generation;The data message of the multiple Tag and the multiple electric power terminal is constituted into multiple entity packages into the payload of one or more of ethernet frames, data message of each entity comprising a Tag and correspondence electric power terminal.
Further, the receiving converter（72) it is additionally operable to receive electric power terminal（82) the first frame of data information.
Further, the access network terminal device（700) memory is also included（78), the processor（74) it is additionally operable to obtain the port numbers for receiving first frame of data information on the identification information and the access network terminal device of the electric power terminal carried in first frame of data information, in the memory（78) electric power terminal carried in first frame of data information is preserved in（82) identification information and the access network terminal device（700) corresponding relation of the port numbers of first frame of data information is received on.
Further, the processor（74) it can be also used for obtaining and receive electric power terminal（82) identification information of the port of data message, using the identification information-enquiry port of the port of acquisition identification information and electric power terminal identification information corresponding relation, so as to obtain multiple electric power terminals（82) identification information.A kind of power grid control system implemented according to the present invention（, including multiple electric power terminals 800)（82), access network terminal device (80) and electrical power services device（84), the multiple electric power terminal（82) the access network terminal device is passed through（80) one or more ports on connect the electrical power services device（84);
The access network terminal device (80), for receiving the multiple electric power terminal by one or more of ports（82) data message；Obtain the multiple electric power terminal（82) identification information, by the multiple electric power terminal（82) identification information and the multiple electric power terminal（82) data message is encapsulated into one or more data frames；And one or more of data frames are passed through into the access network terminal device and the electrical power services device（84) passage between（85) it is sent to the electrical power services device（ 85 ).
Further, the access network terminal device (80) is specifically for by the multiple electric power terminal（82) identification information and the multiple electric power terminal（82) data message is divided into multiple entity packages into the payload of one or more of data frames, and each entity includes the identification information and corresponding data message of an electric power terminal.
Further, the access network terminal device (80) specifically for：
It is just blunt according to the multiple electric power terminal（82) the multiple Tag for being used to identify electric power terminal of identification information generation;By the multiple Tag and the multiple electric power terminal（82) data message constitutes multiple entity packages into the payload of one or more of data frames, data message of each entity comprising a Tag and correspondence electric power terminal.
Further, the access network terminal device（80) it is additionally operable to：
Receive the electrical power services device（84) one or more entities are included in downlink message, the payload of the downlink message, each entity includes the identification information of an electric power terminal；
The downlink message is broadcasted to multiple ports on access network terminal device (80).
Further, the access network terminal device（80) it is additionally operable to：
Receive the electrical power services device（84) one or more entities are included in downlink message, the payload of the downlink message, each entity includes a Tag for being used to identify electric power terminal;
Multiple Tag in the downlink message, corresponding port is sent to by the downlink message.Method, apparatus and system provided in an embodiment of the present invention, it is possible to achieve the N that serial ports is connected and TCP/UDP is linked:1 virtual connections pair, when transmitting the data message of electric power terminal, it is only necessary to set up a TCP/UDP connection just, IP resources can be saved, and the problem of previous ONU of mesh can only use a serial ports can be solved.Brief description of the drawings
Used accompanying drawing is briefly described when stating background technology and embodiment.Apparently, described in accompanying drawings below is only a part of embodiment of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings or embodiment can also be obtained according to these accompanying drawings and description, and it is contemplated that covering all these derivative accompanying drawings or embodiment.
Fig. 1 is the smart electric grid system schematic diagram for making electric distribution network data collection and control with EPON；Fig. 2 is the simplification Organization Chart of power grid control system provided in an embodiment of the present invention；
Fig. 3 is the flow chart for the data processing method that the embodiment of the present invention one is provided；
Fig. 4 is the flow chart for the data processing method that the embodiment of the present invention two is provided；
Fig. 5 a and 5b are the ethernet frame structural representation that the embodiment of the present invention two is provided；
Fig. 6 is the flow chart for the data processing method that the embodiment of the present invention three is provided；
Fig. 7 a and 7b are the ethernet frame structural representation that the embodiment of the present invention three is provided；And
Fig. 8 is the structural representation for the access network terminal device that the embodiment of the present invention four is provided.Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Fig. 2 is a kind of Organization Chart of the simplification for the power grid control system that the embodiment of the present invention is based on.In Fig. 2
Power grid control system 800 in, multiple (i.e. above-mentioned collectors of electric power terminal 82）Electrical power services device 84 can be connected to by access network terminal device 80, electric power terminal 82 here can be DTU or RTU etc., each electric power terminal 82 and one or more data producing nodes in power distribution network（The electric energy meter of such as power consumer）Connect and data therefrom.Access network terminal device 80 may be, but not limited to, ONU, ONT (Optical Network Terminal, ONT Optical Network Terminal）, MxU (Multiple x Unit, multi-user installation）Deng.Further, access network terminal device 80 can pass through access device（H is not shown in figure.OLT (Optical Line Terminal, optical line terminal）, DSLAM (Digital Subscriber Line Access Multiplexer, Digital Subscriber Line Access Multiplexer) or MSAN (Multiservice Access Node, MSAN）Electrical power services device 84 is connected to etc. equipment.
There can be one or more ports on access network terminal device 80（It can be serial ports）.One or more of ports are respectively used to connect the multiple electric power terminal 82.Specifically, when the port on access network terminal device 80 is to be based on RS485 agreements, multiple electric power terminals 82 can be connected to electrical power services device 84 by a port on access network terminal device 80.When the port ^^ on access network terminal device 80 is in RS232, multiple electric power terminals 82 can be connected to electrical power services device 84 by multiple ports on access network terminal device 80 respectively, and each port connects an electric power terminal 82.
In Fig. 2 power grid control system, the data message that access network terminal device 80 can report electric power terminal 82 uploads to electrical power services device 84.The data message that electric power terminal 82 is reported may be, but not limited to, electric energy meter number of degrees information etc..
In the prior art, electrical power services device 84 needs the corresponding relation management the serial port on electric power terminal 82 and access network terminal device 80.How many serial ports on access network terminal device 80, it is accomplished by setting up how many TCP/UDP connections between access network terminal device 80 and electrical power services device 84, the waste of IP resources can so be caused, and for only supporting to set up the electrical power services device of a TCP/UDP connection, can so cause that a port can only be used on access network terminal device 80.Embodiment one
In view of the above-mentioned problems, The embodiment provides the data transmission method in a kind of power grid control system.As shown in figure 3, this method comprises the following steps：
Step 200, access network terminal device receives the data message of multiple electric power terminals by one or more ports.
When multiple electric power terminals are connected to a port on access network terminal device, then access network terminal device receives the data message that multiple electric power terminals are reported by the port；When multiple electric power terminals are connected to multiple ports on access network terminal device, access network terminal device receives the data message that multiple electric power terminals are reported by multiple ports.Step 205, access network terminal device obtains the identification information of multiple electric power terminals, and the data message that the identification information and multiple electric power terminals of multiple electric power terminals of acquisition are reported is encapsulated into one or more data frames, such as Ethernet（Ethernet) frame, in, the data message of multiple electric power terminals can be packaged with each data frame.
In the embodiment of the present invention, the identification information of an electric power terminal can be the SN (Serial of the electric power terminal
Number, sequence number）Or other are used for identifying the information of electric power terminal, the device identification of such as electric power terminal, MAC (Media Access Control, media access control）Address etc..
In an embodiment of the present invention, referring to Fig. 2, a passage 85 for being used to upload the data message of electric power terminal is provided between access network terminal device 80 and electrical power services device 84, the passage can be a virtual connections based on TCP/UDP agreements, the data message that multiple electric power terminals are reported can use a common-use tunnel 85 to upload to electrical power services device 84, form N:1 virtual connections framework.Passage 85 between access network terminal device 80 and electrical power services device 84 can be by artificial pre-configured or after electricity on access network terminal device 80 and electrical power services device 84 is consulted to set up.How how collocation channel 85 and access network terminal device 80 are consulted to set up the passage with electrical power services device 84, and those of ordinary skill in the art should be appreciated that, no longer illustrate herein.
Access network terminal device obtains the data message that the identification information and multiple electric power terminals of multiple electric power terminals are reported, and obtains the mode of electric power terminal identification information and has a variety of, for example, obtained from the reporting message of electric power terminal；It can also be the port-mark by obtaining the reporting message for receiving electric power terminal, the identification information of electric power terminal is obtained from the corresponding relation of port-mark and the identification information of electric power terminal.
The mode that access network terminal device obtains the reported data information of electric power terminal has a variety of, for example can be after the instruction of electrical power services device is received, notify electric power terminal reported data information, it can also be prior setting electric power terminal, it is allowed to the time automatic reported data information according to setting, when can also be that the link broken down in electric power terminal or between electric power terminal and electric energy meter breaks down, the data or status information of the electric energy meter of current collection are reported, in order to which electrical power services device obtains the correct data or fault message of electric energy meter.
Access network terminal device reports the identification information and multiple electric power terminals of multiple electric power terminals of acquisition
Data message be encapsulated into one or more data frames.
Because the data frame that can be transmitted in existing communication network typically is provided with specific form, therefore in order to not change the structure of available data frame, can be that the data message of the identification information of multiple electric power terminals and corresponding multiple electric power terminals is encapsulated into the payload of data frame, such as the terminal data information of the identification information of multiple electric power terminals and corresponding multiple electric power is encapsulated into the payload of one or more ethernet frames, the identification information of multiple electric power terminals and the data message of corresponding multiple electric power terminals can be carried in the payload of each ethernet frame.
Before the data message for reporting the identification information and multiple electric power terminals of multiple electric power terminals of acquisition is encapsulated into one or more data frames, access network terminal device it is also required to provide the frame originating point information of data frame, can specifically include：
According to the identification information of passage between the foregoing device with electrical power services, the identification information of passage port of corresponding port on access network terminal device of the IP address of access network terminal device acquisition itself, the IP address of electrical power services device and this multiple ports share.Wherein, the identification information of the IP address of access network terminal device, the IP address of electrical power services device and the port can be used for the frame head for constituting data frame.
Specifically, access network terminal device can obtain the information needed for above-mentioned composition frame head from the configuration information locally preserved.Wherein, the corresponding relation of the identification information of passage and the IP address of access network terminal device, the IP address of electrical power services device and the identification information of port is preserved in the configuration information locally preserved.
Wherein, the identification information of passage can be ID (Identifier, identifier of passage）Or it is other can be with information of one passage of unique mark etc.；The identification information of port can be one or more of the frame position/slot number of port numbers and port on access network terminal device.
The data message of the identification information of multiple electric power terminals of acquisition and multiple electric power terminals and above-mentioned frame head are constituted one or more data frames by access network terminal device, and the data message of the identification information of multiple electric power terminals and multiple electric power terminals can be encapsulated into the payload of one or more data frames.Step 210, one or more data frames are sent to electrical power services device by access network terminal device by a passage between access network terminal device and electrical power services device.
In the present embodiment, multiple ports one passage of correspondence on access network terminal device, such as correspond to a TCP/UDP virtual connections, the data message of electric power terminal is sent to electrical power services device by access network terminal device by the TCP/UDP virtual connections.
The data processing method that the present embodiment is provided, by the way that the identification information and data message of multiple electric power terminals are packaged into one or more data frames, data frame is sent to electrical power services device by a passage, it is possible to achieve the N of access network terminal device upper port and TCP/UDP virtual connections:The application of 1 scene.Due to can only use an IP address（That is the IP address of access network terminal device), therefore IP resources can be saved, meanwhile, the problem of electrical power services device is not supported to set up multiple TCP/UDP virtual connections in the prior art can be solved.Below will be specific to having frame format scene and embodiments of the present invention is described in detail without frame format scene.
Embodiment two
The present embodiment is by for there is frame format that the data transmission method in above-mentioned power grid control system is described in detail.
There is frame format to refer to that access network terminal device can be to up direction（That is electrical power services device direction）The data frame of overall format is sent, the form of frame is relatively fixed.Based on there is frame format, the data transmission method that this implementation is provided as shown in figure 4, including：
Step 300, access network terminal device receives the data message of multiple electric power terminals by one or more ports, obtains the identification information of multiple electric power terminals.
The identification information of electric power terminal can be the SN of electric power terminal, the device identification of electric power terminal or electric power terminal MAC Address etc..In the present embodiment, with SN as an example.
When multiple ports, each port being connected respectively to for multiple electric power terminals on access network terminal device connect an electric power terminal, each electric power terminal sends a reporting message to access network terminal device, reporting message includes the SN and data message of electric power terminal oneself, and access network terminal device receives the reporting message of multiple electric power terminals by multiple ports；When multiple electric power terminals are connected to a port on access network terminal device, each electric power terminal sends a reporting message to access network terminal device, reporting message includes the SN and data message of electric power terminal oneself, and access network terminal device receives the reporting message of multiple electric power terminals by a port.
Step 305, the data message of the identification information of multiple electric power terminals and multiple electric power terminals is divided into multiple entities by access network terminal device, in the payload for being encapsulated into one or more data frames, each entity includes the identification information and corresponding data message of an electric power terminal.Data frame can be the data frame of ethernet format.
In this step, access network terminal device is by the identification information of multiple electric power terminals and corresponding multiple
The data message of electric power terminal is divided into multiple entity packages into the payload of one or more data frames.Each entity can include that in the identification information and corresponding data message of an electric power terminal, entity entity origin identification can also be included（BEG), entity terminates mark（END), control code（C), CRC (cyclic redundancy check, CRC）Code and the data field length for indicating data message length（L) etc..
Fig. 5 a show the data frame structure for including an entity.If it can be that the identification information of each electric power terminal and corresponding data message are packaged into a data frame as shown in Figure 5 a into the payload of multiple data frames, then that the data message of the identification information of multiple electric power terminals and multiple electric power terminals is divided into multiple entity packages.Or, can also be that the identification information of two or more electric power terminals and corresponding data message are encapsulated into the payload of a data frame, if in this way, then at least include two entities in the payload of each data frame, the quantity of the data frame after encapsulation is less than the quantity of electric power terminal.If the data message of the identification information of multiple electric power terminals and multiple electric power terminals is divided into multiple entity packages into the payload of a data frame, multiple entities described above can be included in the payload of a data frame, as shown in Figure 5 b.
Access network terminal device also needs to obtain data frame frame originating point information, how to obtain frame originating point information and is had been described above in above example, is no longer illustrated herein.
Step 310, one or more of data frames are sent to the electrical power services device by access network terminal device by the passage between access network terminal device and electrical power services device.
With reference to Fig. 2, one or more data frames are sent to electrical power services device 84 by access network terminal device 80 according to the frame originating point information of data frame by the passage 85 between access network terminal device 80 and electrical power services device 84, passage 85 can be TCP/UDP virtual connections, there can also be multiple TCP/UDP virtual connections between access network terminal device 80 and electrical power services device 84, access network terminal device 80 can be selected from this TCP/UDP virtual connections one it is corresponding with multiple serial ports, so as to which the data message of multiple electric power terminals is reported into electrical power services device 84 using this TCP/UDP virtual connections of selection.Specific how to send data frame according to the frame originating point information of data frame, those of ordinary skill in the art should be appreciated that.
The present embodiment is by the way that the SN and data message of electric power terminal are encapsulated into the payload of data frame, the data frame what form electric power takes may be used to realize the present invention, and obviously the scope of the present invention is not limited to the form of specific data frame, but if using the data frame of general ethernet format, this data frame can be transmitted by existing IP bearer networks, the performance of existing system is not influenceed, and with blunt good versatility.
The method that the present embodiment is provided can also include：
Step 315, access network terminal device, which is received, includes one or more entities in the downlink message from electrical power services device to electric power terminal, the descending 4 blunt literary payload, each entity may include the identification information of one or more electric power terminals.
In the present embodiment, descending 4 blunt text can also be using frame structure as shown in Figure 5 a, and each descending 4 blunt text includes an entity, it would however also be possible to employ frame structure as shown in Figure 5 b, multiple entities are included in payload, each entity includes the identification information of an electric power terminal.
Step 320, access network terminal device broadcasts downlink message to multiple ports.
Access network terminal device is received after downlink message, the downlink message can be broadcasted to multiple ports, electric power terminal is received after downlink message, due to the IP address of electrical power services device can be preserved on electric power terminal, therefore the IP address for the electrical power services device that electric power terminal can be in downlink message recognizes whether the downlink message is intended for oneself, and the downlink message is abandoned if not oneself Ze Lost is sent to；Downlink message is handled if oneself is destined to.
The data transmission method that the present embodiment is provided, by the way that the data message of multiple electric power terminals is encapsulated into one or more data frames, electrical power services device is sent to by a passage, it is possible to achieve the N of access network terminal device upper port and TCP/UDP virtual connections:The application of 1 scene, due to only needing to using IP address, therefore can save IP resources, meanwhile, the problem of can solving not support in the prior art using the access network terminal device using serial ports is only supported.Embodiment three refers to that access network terminal device, according to binding and layout time and binding and layout length composition data frame, sends byte code stream without frame format.Data frame can be the data frame of ethernet format, and the data field of data frame is not necessarily a complete form.Based on the data transmission method that without frame format, this implementation is provided as shown in fig. 6, including：Step 500, access network terminal device receives the data message of multiple electric power terminals by one or more ports, obtains the data message of multiple electric power terminals.
The identification information of electric power terminal can be the SN of electric power terminal, the device identification of electric power terminal or electric power terminal MAC Address etc..In the present embodiment, with SN as an example.
For without frame format, the first frame of data information that electric power terminal is reported can carry the SN of electric power terminal oneself,
Access network terminal device is when receiving the first frame data of electric power terminal, the corresponding relation of the identification information of the port of the SN for preserving electric power terminal and the first frame of data information for receiving the electric power terminal, because the follow-up data information that electric power terminal is reported will not typically carry the SN of electric power terminal oneself, when access network terminal device receives the follow-up data information of the electric power terminal, the SN of electric power terminal can be obtained from the corresponding relation according to the port-mark for the port for receiving data message.Wherein, the identification information of port can be one or more in the frame position/slot number of port numbers, port on access network terminal device.
The corresponding relation of the SN of electric power terminal and the identification information of port can also be configured on access network terminal device in advance, after the data message for receiving electric power terminal, the SN of electric power terminal is obtained from this corresponding relation according to the port-mark for the port for receiving data message.
Step 505, access network terminal device generates multiple Tag (marks for being used to identify electric power terminal according to the identification information of multiple electric power terminals）.
The Tag of access network terminal device generation can include the identification information that the port of the electric power terminal is connected on the SN and access network terminal device of electric power terminal, can also include device identification of access network terminal device etc..Wherein, the device identification of access network terminal device can be that bridge MAC Address of the ID of access network terminal device, access network terminal device etc. can identify one or more of information of access network terminal device.
Access network terminal device can generate multiple Tag for being used to identify electric power terminal, the identification information of the port of the electric power terminal is connected on each SN and access network terminal device of the Tag comprising an electric power terminal, the equipment identification information of access network terminal device can also be included.
Step 510, the data message of multiple Tag of generation and multiple electric power terminals is constituted multiple entity packages into the payload of one or more data frames by access network terminal device, the data message that each entity can be comprising a Tag and correspondence electric power terminal.
Multiple Tag and corresponding data message are constituted multiple entity packages into the payload of one or more data frames by access network terminal device, and Fig. 7 a show a case that to include an entity in the payload of a data frame.
If multiple Tag and corresponding data message are constituted into multiple entity packages into the payload of multiple data frames, then the Tag and data message that the electric power terminal is included in multiple data frames as shown in Figure 7a, the payload of the data frame are generated；Can also be the Tag and data message that at least two electric power terminals are included in a data frame, in this way, the quantity of data frame is less than the quantity of electric power terminal.If multiple Tag and corresponding data message are constituted into multiple entity packages into the payload of a data frame, then the structure of the data frame can be as shown in Figure 7b, there are the Data domains in multiple such entities, entity to be used to preserve Tag correspondences in payload
Data message.
Step 515, one or more of data frames are sent to the electrical power services device by access network terminal device by a passage between the access network terminal device and the electrical power services device.
Referring to Fig. 2, data frame is sent to electrical power services device 84 by access network terminal device 80 according to the frame originating point information of data frame by the passage 85 between access network terminal device 80 and electrical power services device 84, specific how to send data frame according to the frame originating point information of data frame, those of ordinary skill in the art should be appreciated that.
The present embodiment is by the way that the SN and data message of electric power terminal are encapsulated into the payload of data frame, what electric power was taken is the data frame of general ethernet format, therefore it can be transmitted by existing IP bearer networks, the performance of existing system not influenceed, with blunt good versatility.
Simultaneously as existing equipment does not support the N of no frame format:1 virtual connections, the method provided using the present embodiment can cause on the premise of existing IP bearer networks equipment of not upgrading, and support the N without frame format:1 virtual connections.
The data processing method that the present embodiment is provided can also include：
Step 520, access network terminal device receives the downlink message of the electrical power services device, and according to one or more of lower style of writing Tag, the descending 4 blunt text is sent into corresponding port.
One or more entities can be included in the payload for the downlink message that access network terminal device is received, each entity includes a Tag for being used to identify electric power terminal, access network terminal device extracts the SN of the power equipment in Tag, according to the SN of preservation and the corresponding relation of port, downlink message is forwarded to corresponding electric power terminal.
The data transmission method that the present embodiment is provided, by the way that the data message of multiple electric power terminals is packaged into a data frame, electrical power services device is sent to by a passage, it is possible to achieve the N of access network terminal device upper port and electric power terminal virtual connections:The application of 1 scene, due to only needing to using an IP address, therefore IP resources can be saved, simultaneously, for only supporting to set up the electrical power services device of a TCP/UDP connection, it can be set up and communicated with multiple electric power terminals simultaneously using multiple ports on access network terminal device, and be not limited to only communicate with an electric power terminal foundation.Example IV
A kind of data transfer for being used to realize power grid control system and the access network terminal device of control are as shown in Fig. 8.As an application example, the access network terminal device can be ONT, ONU or MxU equipment
Deng.Access network terminal device 700 (the access network terminal device 82 in corresponding diagram 2) includes：
One or more user-side ports 70, for connecting multiple electric power terminals 82.
User-side port 70 can be serial ports, if user-side port 70 is based on RS485 agreements, only can connect multiple electric power terminals 82 with such user-side port;If user-side port 70 is based on RS232 agreements, multiple such user-side ports are needed to connect multiple electric power terminals 82 respectively.
Receiving converter 72 ,-end is connected with user-side port 70, and the other end is connected with processor 74, the data message for receiving multiple electric power terminals 82 by user-side port 70.
Receiving converter 72 can be specifically made up of RS485 drive circuits and/or RS232 drive circuits, for the access network terminal device for only supporting RS485, and receiving converter 72 only can be made up of RS485 drive circuits；For the access network terminal device for only supporting RS232, receiving converter 72 only can be made up of RS232 drive circuits.
Receiving converter 72 can be also used for changing the data message based on serial ports form from electric power terminal 82, converts the electrical signal to byte code stream, is sent to processor 74.
Processor 74, it is connected with receiving converter 72, data message except receiving multiple electric power terminals 82, it is additionally operable to obtain the corresponding identification information of multiple electric power terminals 82, the data message of the identification information of multiple electric power terminals 82 and multiple electric power terminals 82 is encapsulated into a data-signal, data-signal can be a kind of form of agreement, it may include one or more data frames.The form of data frame is not limited, but preferably can be the data frame of ethernet format.
As an example, processor 74 can specifically include CPU (Central Processing Unit, central processing unit）742 and the grade circuit of forwarding logic 744 or module, wherein, forwarding logic 744 is managed by CPU742, can be to the byte code stream framing from conversion receiver 72, including that the data message of the identification information of the multiple electric power terminal 82 and the multiple electric power terminal 82 is encapsulated into one or more data frames is medium.
Electrical power services device port 76, for the data message of multiple electric power terminals 82 to be sent into electrical power services device 84 by the passage 85 of a setting.Passage 85 can be a direct data cube computation or a data cube computation by bearer network.Such data cube computation can be realized by the existing communication technology, no longer be illustrated here.The data message of multiple electric power terminals 82 can be sent in the form of one or more data frames, such as ethernet data frame.Electrical power services device port 76 can also receive electrical power services device from electrical power services device 84 by passage 85 and issue the data or command information of one or more electric power terminals 82, and be transmitted to processor
74,74 pairs of data of processor or command information are handled and are sent to corresponding one or more electric power terminals 82.
It is used as an application example, electrical power services device port 76 can be optical module, the carrying network access equipment of connection electrical power services device 84 is connected to by a up going port, up going port can be the adaptive up going port of three moulds, three moulds include GE (Gigabit Ethernet, gigabit Ethernet）, GPON (gigabit-capable passive optical network, Gigabit-capable Passive Optical Network), EPON (Ethernet passive optical network, Ethernet passive optical network）Deng.
In the present embodiment, the access device of up going port connection can be OLT, DSLAM or MSAN etc..Network termination equipment 700 can also include memory 78.Memory 78 can be ARM (random access memory, random access memory）, ROM (read-only memory, read-only storage）With the one or more in flash memory.The identification information and data message of the storage electric power terminal of memory 78, are additionally operable to store the computer instruction for making access network terminal device 700 realize data transfer and power network control.
Memory 78 can be also used for storage configuration information, include, but are not limited to：Identification information of the IP address of access network terminal device 700, the IP address of electrical power services device 84 and passage 85 etc..
The access network terminal device that the present embodiment is provided can also include the power module for providing power supply, and power module connects dc source or AC power by power interface.One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment can be by program to instruct the hardware of correlation to complete, the program can be stored in a computer-readable recording medium, and storage medium can include：Flash disk, read-only storage（Read-Only Memory, ROM), random access device (Random Access Memory, RAM), disk or CD etc..
Data processing method, equipment and the system provided above the embodiment of the present invention is described in detail, those skilled in the art, thought according to the present invention, it will change in specific embodiments and applications, in summary, this specification content should not be construed as limiting the invention.
Claims (18)
- Claims1, a kind of data processing method in power grid control system, it is characterized in that, the power grid control system includes access network terminal device, multiple electric power terminals and electrical power services device, the multiple electric power terminal is connected with the multiple data producing nodes or data output device of power distribution network respectively at one end, it is connected respectively with one or more serial ports on the access network terminal device in the other end, the access network terminal device is connected with the electrical power services device, a passage between one or more of serial ports and the access network terminal device and the electrical power services device is corresponding, methods described includes：The access network terminal device receives the data message of the multiple electric power terminal by one or more of serial ports；The access network terminal device obtains the identification information of the multiple electric power terminal, and the data message of the identification information of the multiple electric power terminal and the multiple electric power terminal is encapsulated into one or more data frames；One or more of data frames are sent to the electrical power services device by the access network terminal device by the passage.2nd, according to the method described in claim 1, it is characterised in that the data message by the identification information of the multiple electric power terminal and the multiple electric power terminal also includes before being encapsulated into one or more data frames：According to the IP address of the identification information of the passage acquisition access network terminal device, the identification information of the IP address of the electrical power services device and the passage corresponding port on the access network terminal device, the identification information of the IP address of the access network terminal device, the IP address of the electrical power services device and the port is used to constitute the frame head with data frame.3rd, method according to claim 2, characterized in that, IP address, the IP address of the electrical power services device and the passage according to the identification information of passage acquisition access network terminal device identification information of corresponding port on the access network terminal device is specifically included：The configuration information preserved on the access network terminal device is inquired about, the configuration information preserves the identification information of the passage and the IP address of the access network terminal device, the IP address of the electrical power services device, the corresponding relation of the identification information of the port.4th, according to the method described in claim 1, it is characterised in that by the mark of the multiple electric power terminal The data message of information and the multiple electric power terminal is encapsulated into one or more data frames and specifically included：The data message of the identification information of the multiple electric power terminal and the multiple electric power terminal is divided into multiple entity packages into the payload of one or more of data frames, each entity includes the identification information and corresponding data message of an electric power terminal.5th, according to the method described in claim 1, it is characterised in that the data message by the identification information of the multiple electric power terminal and the multiple electric power terminal is encapsulated into one or more data frames and specifically included：Just the blunt identification information according to the multiple electric power terminal generates multiple Tag for being used to identify electric power terminal;The data message of the multiple Tag and the multiple electric power terminal is constituted into multiple entity packages into the payload of one or more of data frames, data message of each entity comprising a Tag and correspondence electric power terminal.6th, method according to claim 5, characterized in that, identification informations of each Tag comprising an electric power terminal, connect on the access network terminal device electric power terminal port identification information and the equipment identification information of the access network terminal device.7th, method according to claim 6, it is characterised in that described to be specifically included according to the multiple Tag for being used to identify electric power terminal of the identification information of the multiple electric power terminal generation：The port numbers for the data message for receiving electric power terminal are obtained, the corresponding relation of the identification information of port numbers and electric power terminal are inquired about using the port numbers of acquisition, so as to obtain the identification information of multiple electric power terminals；Utilize the multiple Tag for being used to identify electric power terminal of the equipment identification information generation of corresponding port numbers and the access network terminal device on the identification information of multiple electric power terminals of the acquisition, the access network terminal device.8th, also include before method according to claim 7, it is characterised in that the acquisition receives the port numbers of the data message of electric power terminal, the corresponding relation for the identification information for inquiring about serial port and electric power terminal using the port numbers of acquisition：Receive the first frame of data information of electric power terminal, the identification information for the port that first frame of data information is received on the identification information and the access network terminal device of the electric power terminal carried in first frame of data information is obtained, the corresponding relation of the identification information for the port that first frame of data information is received on the identification information and the access network terminal device of the electric power terminal carried in first frame of data information is preserved on the access network terminal device. 9th, the method according to claim 1-8 any one, it is characterized in that, the identification information of the electric power terminal is sequence number, device identification or the media access control address of electric power terminal, and the passage is based on transmission control protocol/user datagram protocol.10th, a kind of access network terminal device（700), it is characterised in that including：One or more user-side ports（70), for connecting multiple electric power terminals（82);Receiving converter（72), for receiving the multiple electric power terminal by one or more of user-side ports（82) data message, the user-side port is serial ports；Processor（74) receiving converter, is connected（72), for obtaining the identification information of the multiple electric power terminal, the data message of the identification information of the multiple electric power terminal and the multiple electric power terminal is encapsulated into one or more data frames；Electrical power services device port（76) ,-end connection processor（74), other end connection electrical power services device（84), the electrical power services device port（76) with the electrical power services device（84) passage is provided between（85), the passage（85) one or more of user-side ports, the electrical power services device port are corresponded to（76) it is used to one or more of data frames passing through the passage（85) it is sent to electrical power services device（ 84 ).11st, access network terminal device according to claim 10, it is characterised in that the data frame is the data frame of ethernet format, the processor（74) specifically for by the multiple electric power terminal（82) identification information and the multiple electric power terminal（82) data message is divided into multiple entity packages into the payload of one or more of data frames, and each entity includes the identification information and corresponding data message of an electric power terminal.12nd, access network terminal device according to claim 10, it is characterised in that the processor is also particularly useful for according to the multiple electric power terminal（82) the multiple Tag for being used to identify electric power terminal of identification information generation;The data message of the multiple Tag and the multiple electric power terminal is constituted into multiple entity packages into the payload of one or more of ethernet frames, data message of each entity comprising a Tag and correspondence electric power terminal.13rd, the access network terminal device according to claim 10 or 12, it is characterised in thatReceiving converter（72) it is additionally operable to receive electric power terminal（82) the first frame of data information.14th, access network terminal device according to claim 13, it is characterised in thatThe access network terminal device（700) memory is also included（78), the processor（74) It is additionally operable to obtain the identification information for the port that first frame of data information is received on the identification information and the access network terminal device of the electric power terminal carried in first frame of data information, in the memory（78) electric power terminal carried in first frame of data information is preserved in（82) identification information and the access network terminal device（700) corresponding relation of the identification information of the port of first frame of data information is received on.15th, access network terminal device according to claim 13, it is characterised in thatThe processor（74) it is additionally operable to obtain and receives electric power terminal（82) identification information of the port of data message, using the identification information-enquiry port of the port of acquisition identification information and electric power terminal identification information corresponding relation, so as to obtain multiple electric power terminals（82) identification information.16th, the access network terminal device according to claim 10-14 any one, it is characterised in that the access network terminal device is ONT Optical Network Terminal ONT, optical network unit ONU or many resident family MxU equipment.17th, a kind of power grid control system（800), it is characterised in that including multiple electric power terminals（82), access network terminal device (80) and electrical power services device（84), the multiple electric power terminal（82) the access network terminal device is passed through（80) one or more ports on connect the electrical power services device（84);The access network terminal device (80), for receiving the multiple electric power terminal by one or more of ports（82) data message；Obtain the multiple electric power terminal（82) identification information, by the multiple electric power terminal（82) identification information and the multiple electric power terminal（82) data message is encapsulated into one or more data frames；And one or more of data frames are passed through into the access network terminal device and the electrical power services device（84) passage between（85) it is sent to the electrical power services device（ 85 ).18th, power grid control system according to claim 17, it is characterised in that the access network terminal device（80) specifically for by the multiple electric power terminal（82) identification information and the multiple electric power terminal（82) data message is divided into multiple entity packages into the payload of one or more of data frames, and each entity includes the identification information and corresponding data message of an electric power terminal.19th, power grid control system according to claim 17, it is characterised in that the access network terminal device (80) specifically for：It is just blunt according to the multiple electric power terminal（82) the multiple Tag for being used to identify electric power terminal of identification information generation;By the multiple Tag and the multiple electric power terminal（82) data message constitutes multiple entity packages into the payload of one or more of data frames, data message of each entity comprising a Tag and correspondence electric power terminal.20th, the power grid control system according to claim 17 or 18, it is characterised in that the access Network termination equipment (80) is additionally operable to：Receive the electrical power services device（84) one or more entities are included in downlink message, the payload of the downlink message, each entity includes the identification information of an electric power terminal；The downlink message is broadcasted to multiple ports on access network terminal device (80).21st, the power grid control system according to claim 17 or 19, it is characterised in that the access network terminal device (80) is additionally operable to：Receive the electrical power services device（84) one or more entities are included in downlink message, the payload of the downlink message, each entity includes a Tag for being used to identify electric power terminal;Multiple Tag in the downlink message, corresponding port is sent to by the downlink message.
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| CN113362196B (en) * | 2021-05-31 | 2023-02-21 | 广东电网有限责任公司 | Low-delay addressing method for pre-dispatching service of power grid monitoring system |
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| CN1571419A (en) * | 2003-07-11 | 2005-01-26 | 华为技术有限公司 | Method for supporting one and the same physical terminal to implement multiple services |
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| CN101599998A (en) * | 2009-07-24 | 2009-12-09 | 东北电网有限公司 | A kind of method for transmitting telecontrol data through particular channel |
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