CN115208058A - Plug and play method and system for distributed power distribution terminal - Google Patents
Plug and play method and system for distributed power distribution terminal Download PDFInfo
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- CN115208058A CN115208058A CN202210872780.3A CN202210872780A CN115208058A CN 115208058 A CN115208058 A CN 115208058A CN 202210872780 A CN202210872780 A CN 202210872780A CN 115208058 A CN115208058 A CN 115208058A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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Abstract
The invention discloses a distributed power distribution terminal plug-and-play method and a system in the field of power distribution terminals, wherein the method comprises the following steps: establishing a physical link from the interval unit to the public unit through a network, and acquiring an IP address of the interval unit from the public unit through a DHCP protocol; periodically sending a UDP broadcast message to the public unit based on the IP address acquired by the interval unit, and indicating the identity information of the interval unit through the UDP broadcast message; after the identity information of the interval unit is confirmed, TCP connection between the public unit and the interval unit is established, and an equipment model of the interval unit is obtained; establishing a real-time memory database according to the equipment model of the interval unit to finish the automatic registration of the interval unit; interacting application data and commands between the interval unit and the public unit based on TCP connection to complete the integrated debugging of the interval unit and the public unit; the distributed power distribution terminal realizes the plug-and-play function between the interval unit and the public unit, and reduces the workload of configuration and debugging.
Description
Technical Field
The invention belongs to the field of power distribution terminals, and particularly relates to a plug and play method and a plug and play system for a distributed power distribution terminal.
Background
Along with the construction of the intelligent power distribution network, more and more distributed power distribution terminals are debugged and operated on the engineering site. Compared with a centralized power distribution terminal, the distributed power distribution terminal has the advantages that the number of intervals can be flexibly expanded, the intervals are convenient to expand, the distributed power distribution terminal is composed of a public unit and a plurality of interval units, and information of all the interval units needs to be collected to the public unit and then is sent to a power distribution main station by the public unit.
For a traditional distributed power distribution terminal, when debugging is performed in a factory or on a project site, configuration of parameters such as device IP addresses, communication parameters, outgoing remote transmission point tables and the like needs to be performed in an interval unit, and then configuration of IP addresses, communication parameters and incoming remote transmission point tables needs to be performed in a public unit. And debugging is carried out after the configuration of all the interval units and the public units is finished, the three-remote data is checked point by point according to the remote transmission point table, if the data is abnormal, the configuration of the corresponding point table needs to be modified, and the data is checked again after being downloaded. The work is large in amount, tedious, easy to cause problems and high in requirements for engineering operation and maintenance personnel.
Disclosure of Invention
The invention aims to provide a distributed power distribution terminal plug-and-play method and system, which can realize the plug-and-play function between an interval unit and a public unit on a distributed power distribution terminal and reduce the workload of configuration and debugging.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides a plug and play method of a distributed power distribution terminal in a first aspect, which comprises the following steps:
establishing a physical link from the interval unit to the public unit through a network, and acquiring an IP address of the interval unit from the public unit through a DHCP protocol;
periodically sending a UDP broadcast message to the public unit based on the IP address acquired by the interval unit, and indicating the identity information of the interval unit through the UDP broadcast message;
after confirming the identity information of the interval unit, establishing TCP connection between the public unit and the interval unit, and acquiring an equipment model of the interval unit; establishing a real-time memory database according to the equipment model of the interval unit to finish the automatic registration of the interval unit;
and interacting application data and commands between the interval unit and the public unit based on the TCP connection to complete the integrated debugging of the interval unit and the public unit.
Preferably, the method for acquiring the IP address of the gap cell from the public unit through the DHCP protocol includes: when the interval unit is powered on for the first time, automatically applying for an IP address from the public unit and storing the IP address in the interval unit; when the compartment element is powered up again, networking communications are conducted using the IP address that has been stored inside the compartment element.
Preferably, the period for the interval unit to transmit the UDP broadcast message to the common unit is set to 30 seconds.
Preferably, the identity information includes: the device ID, device model filename, device ID identification, and device model version number of the interval element.
Preferably, the method for creating the real-time memory database according to the equipment model of the interval unit comprises the following steps: establishing an equipment model of an interval unit based on the IEC6850 communication standard, and describing an equipment model file by adopting a data exchange format JSON; and analyzing the remote data set in the equipment model file and generating a real-time memory database.
Preferably, the interacting of the application data and commands between the interval unit and the common unit based on the TCP connection includes: TCP connection between the common unit and the interval unit is regulated through an IEC104 communication protocol, and interaction of equipment model files of the interval unit is realized based on the IEC104 communication protocol.
Preferably, the device model file is set to have a unique reference point name; and establishing a mapping relation between a remote transmission point table in the real-time memory database and the reference point names in the model file, and realizing data access of the interval units to the public units according to the mapping relation.
A second aspect of the present invention provides a distributed power distribution terminal plug-and-play system, including:
the acquisition module establishes a physical link from the interval unit to the public unit through a network and acquires an IP address of the interval unit from the public unit through a DHCP protocol;
the identity information confirmation module periodically sends a UDP broadcast message to the public unit based on the IP address acquired by the interval unit, and indicates the identity information of the interval unit through the UDP broadcast message;
the automatic registration module establishes TCP connection between the public unit and the interval unit after confirming the identity information of the interval unit and acquires an equipment model of the interval unit; establishing a real-time memory database according to the equipment model of the interval unit to finish the automatic registration of the interval unit;
and the integrated debugging module is used for interacting the application data and the commands between the interval unit and the public unit based on the TCP connection to finish the integrated debugging of the interval unit and the public unit.
Preferably, a plurality of interval units are in communication connection with one end of the switch; the other end of the switch is in communication connection with the public unit.
Preferably, an IP address distribution module, a plug-and-play service end discovery module, a plug-and-play service end registration module and an application data service end module are arranged in the public unit; an IP address application module, a plug-and-play client discovery module, a plug-and-play client registration module and an application data client module are arranged in the interval unit;
the IP address allocation module and the IP address application module exchange information through a DHCP protocol; the plug-and-play client discovery module sends identity information to the plug-and-play server discovery module through UDP broadcast; the plug-and-play server registration module and the plug-and-play client registration module exchange information through an extended IEC104 communication protocol; the application data server module and the application data client module IEC104 communicate protocol interaction information.
A third aspect of the present invention provides a computer-readable storage medium, characterized in that a computer program is stored thereon, which program, when being executed by a processor, is adapted to carry out the steps of the robot arm control method.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, a UDP broadcast message is periodically sent to a public unit based on the IP address acquired by an interval unit, and the identity information of the interval unit is indicated through the UDP broadcast message; establishing a real-time memory database according to the equipment model of the interval unit to complete the automatic registration of the interval unit; interacting application data and commands between the interval unit and the public unit based on TCP connection to complete the integrated debugging of the interval unit and the public unit; the plug-and-play function between the interval unit and the public unit is realized, and the configuration and debugging workload is reduced, so that the debugging, operation and maintenance efficiency of the intelligent power distribution network is improved, and the safe, stable and reliable operation of the intelligent power distribution network is guaranteed.
Drawings
Fig. 1 is a flowchart of a plug and play method for a distributed power distribution terminal according to an embodiment of the present invention;
FIG. 2 is a diagram of a connection relationship between a common unit and a spacing unit according to an embodiment of the present invention;
fig. 3 is a block diagram of a plug and play system of a distributed power distribution terminal according to an embodiment of the present invention;
fig. 4 is a registration flowchart of a plug and play system of a distributed power distribution terminal according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example one
As shown in fig. 1-4, a distributed power distribution terminal plug and play method includes: the method for establishing a physical link from an interval unit to a public unit through a network and acquiring the IP address of the interval unit from the public unit through a DHCP protocol comprises the following steps: when the interval unit is powered on for the first time, after the public unit receives the IP address application of the interval unit, a proper IP address is searched in the configured address pool, and a corresponding lease period and other configuration information are added to construct an Offer message and sent to the interval unit.
After receiving the allocated IP address, the DHCP client module of the interval unit detects whether the IP address is repeated according to the ARP, if not, the address is configured as a local static address for subsequent application. If the IP address of the interval unit is artificially modified due to the reasons of factory return, maintenance and the like, the existing IP address is only required to be cleared before the interval unit is accessed to the public unit. The method comprises the following specific steps: assume that the IP address of the common cell is 192.168.0.1 and the IP address assigned to bay cell 1 is 192.168.0.100; when the compartment element is powered up again, networking communications are conducted using the IP address that has been stored inside the compartment element.
Periodically sending a UDP broadcast message to the public unit based on the IP address acquired by the interval unit, wherein the period of sending the UDP broadcast message to the public unit by the interval unit is set to be 30 seconds; the message information adopts a private customized protocol format, and the message information is whether the message header, the message length, the equipment ID, the equipment model file name and the equipment ID change the identifier and the equipment model file version number; wherein the message header is defined as 2 bytes EB 90; the length of the message occupies 2 bytes and represents the total length of the identity information message; the device ID is fixed to 32 bytes; indicating the identity information of the interval unit through a UDP broadcast message; the identity information includes: the device ID, device model filename, device ID identification, and device model version number of the interval element.
The public unit firstly judges whether the equipment ID of the interval unit is changed, if the equipment ID change byte is 1, the equipment ID in the real-time memory database is updated, otherwise, the equipment ID is not updated; then judging whether the version number of the equipment model is consistent with the stored version number, if not, destroying the existing real-time memory database and re-reading the model file mark, otherwise, not destroying and resetting the re-reading model file mark;
after confirming the identity information of the interval unit, establishing TCP connection between the public unit and the interval unit, and acquiring an equipment model of the interval unit; the method comprises the steps that an equipment model of an interval unit is established based on IEC6850 communication standard, a data exchange format JSON is adopted to describe equipment model files, a lightweight JSON format is adopted to describe the model files, and complexity in model file analysis is reduced; analyzing a remote data set in the equipment model file and generating a real-time memory database to complete automatic registration of the interval unit; the plug-and-play function between the interval unit and the public unit is realized, the configuration and debugging workload is reduced, the debugging, operation and maintenance efficiency of the intelligent power distribution network is improved,
TCP connection between the public unit and the interval unit is regulated through an IEC104 communication protocol, and equipment model files of the interval unit are interacted on the basis of the extended IEC104 communication protocol to complete integrated debugging of the interval unit and the public unit; the operation and maintenance debugging of interval unit telemetering, remote signaling and remote control data can be carried out between the public units and the interval units based on IEC104 communication protocols.
Setting a unique reference point name of the equipment model file; the mapping relation between the remote transmission point table in the real-time memory database and the reference point names in the model file is established, data access of the interval units to the public units is realized according to the mapping relation, and the problems that the distributed power distribution terminal is excessively configured and the point table is prone to errors when being debugged in a factory or an engineering field are solved; the safe, stable and reliable operation of the intelligent distribution network is guaranteed.
Example two
As shown in fig. 2 to 4, a plug and play system of a distributed power distribution terminal, where the system provided in this embodiment can be applied to the method described in the first embodiment, the system includes: the acquisition module is used for establishing a physical link from the interval unit to the public unit through a network and acquiring the IP address of the interval unit from the public unit through a DHCP protocol;
the identity information confirmation module periodically sends a UDP broadcast message to the public unit based on the IP address acquired by the interval unit, and indicates the identity information of the interval unit through the UDP broadcast message;
the automatic registration module establishes TCP connection between the public unit and the interval unit after confirming the identity information of the interval unit and acquires an equipment model of the interval unit; establishing a real-time memory database according to the equipment model of the interval unit to complete the automatic registration of the interval unit;
and the integrated debugging module is used for interacting the application data and the commands between the interval unit and the public unit based on the TCP connection to finish the integrated debugging of the interval unit and the public unit.
An IP address distribution module, a plug-and-play server discovery module, a plug-and-play server registration module and an application data server module are arranged in the public unit; an IP address application module, a plug-and-play client discovery module, a plug-and-play client registration module and an application data client module are arranged in the interval unit;
the IP address allocation module and the IP address application module exchange information through a DHCP protocol; the plug-and-play client discovery module sends identity information to the plug-and-play server discovery module through UDP broadcast; the plug-and-play server side registration module and the plug-and-play client side registration module exchange information through an extended IEC104 communication protocol; and the application data server module and the application data client module IEC104 exchange information through a communication protocol.
EXAMPLE III
A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the plug and play method of the decentralized power distribution terminal according to one embodiment.
The tester inputs project field information and software types on a foreground page, a text is input according to test requirements, a background outputs related test cases to assist the tester in designing the test cases through text vectorization, keyword extraction, similarity calculation and the like, and the tester can select a certain test case to modify and utilize.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A plug and play method for a distributed power distribution terminal, comprising:
establishing a physical link from the interval unit to the public unit through a network, and acquiring an IP address of the interval unit from the public unit through a DHCP protocol;
periodically sending a UDP broadcast message to the public unit based on the IP address acquired by the interval unit, and indicating the identity information of the interval unit through the UDP broadcast message;
after the identity information of the interval unit is confirmed, TCP connection between the public unit and the interval unit is established, and an equipment model of the interval unit is obtained; establishing a real-time memory database according to the equipment model of the interval unit to complete the automatic registration of the interval unit;
and interacting application data and commands between the interval unit and the public unit based on the TCP connection to finish the integrated debugging of the interval unit and the public unit.
2. The plug and play method of distributed power distribution terminals of claim 1, wherein the method of obtaining the IP address of the spacer unit from the public unit via DHCP protocol comprises: when the interval unit is powered on for the first time, automatically applying for an IP address from the public unit and storing the IP address in the interval unit; when the compartment element is powered up again, networking communications are conducted using the IP address that has been stored inside the compartment element.
3. The plug and play method of a distributed power distribution terminal of claim 1, wherein the period of sending UDP broadcast messages from the gap location to the common location is set to 30 seconds.
4. The distributed power distribution terminal plug and play method of claim 1, wherein the identity information comprises: the device ID, device model filename, device ID identification, and device model version number of the interval element.
5. The distributed power distribution terminal plug and play method of claim 1, wherein the method of creating the real-time memory database from the equipment model of the bay units comprises: establishing an equipment model of an interval unit based on IEC6850 communication standard, and describing an equipment model file by adopting a data exchange format JSON; and analyzing the remote data set in the equipment model file and generating a real-time memory database.
6. The plug and play method of a distributed power distribution terminal of claim 1, wherein interacting application data and commands between the interval unit and the common unit based on TCP connections comprises: TCP connection between the common unit and the interval unit is regulated through an IEC104 communication protocol, and interaction of equipment model files of the interval unit is realized based on the IEC104 communication protocol.
7. The distributed power distribution terminal plug and play method of claim 1, further comprising: setting a unique reference point name of the equipment model file; and establishing a mapping relation between a remote transmission point table in the real-time memory database and the reference point names in the model file, and realizing data access of the interval units to the public units according to the mapping relation.
8. A distributed power distribution terminal plug and play system, comprising:
the acquisition module establishes a physical link from the interval unit to the public unit through a network and acquires an IP address of the interval unit from the public unit through a DHCP protocol;
the identity information confirmation module periodically sends a UDP broadcast message to the public unit based on the IP address acquired by the interval unit, and indicates the identity information of the interval unit through the UDP broadcast message;
the automatic registration module establishes TCP connection between the public unit and the interval unit after confirming the identity information of the interval unit and acquires an equipment model of the interval unit; establishing a real-time memory database according to the equipment model of the interval unit to finish the automatic registration of the interval unit;
and the integrated debugging module is used for interacting application data and commands between the interval unit and the public unit based on the TCP connection to complete the integrated debugging of the interval unit and the public unit.
9. The plug and play system of claim 8, wherein a plurality of bay units are communicatively coupled to one end of the switch; the other end of the switch is in communication connection with the public unit.
10. Computer-readable storage medium, characterized in that a computer program is stored thereon which, when being executed by a processor, carries out the steps of the robot arm control method of any one of claims 1 to 7.
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| CN202210872780.3A CN115208058A (en) | 2022-07-21 | 2022-07-21 | Plug and play method and system for distributed power distribution terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117978829A (en) * | 2024-01-23 | 2024-05-03 | 北京清畅电力技术股份有限公司 | Distributed station terminal IEC104 networking method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117978829A (en) * | 2024-01-23 | 2024-05-03 | 北京清畅电力技术股份有限公司 | Distributed station terminal IEC104 networking method |
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