CN112866400A - Data transmission method for embedded relay protection device - Google Patents
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 81
- 238000004891 communication Methods 0.000 claims abstract description 57
- KKIMDKMETPPURN-UHFFFAOYSA-N 1-(3-(trifluoromethyl)phenyl)piperazine Chemical compound FC(F)(F)C1=CC=CC(N2CCNCC2)=C1 KKIMDKMETPPURN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000003993 interaction Effects 0.000 claims abstract description 5
- 238000012217 deletion Methods 0.000 claims description 8
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- 230000008569 process Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
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- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5682—Policies or rules for updating, deleting or replacing the stored data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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Abstract
The invention discloses a data transmission method of an embedded relay protection device, wherein the embedded relay protection device comprises the following steps: the protocol processing module and the protection logic processing module capable of carrying out data interaction comprise the following steps: acquiring a fault report file and/or a fault recording and broadcasting file; converting the fault report file and/or the fault recording and broadcasting file into a preset format file through a protection logic processing module; transmitting the file with the preset format to a protocol processing module through a file transmission protocol and a file information communication protocol; and deleting the original fault report file and/or the original fault recording and broadcasting file in the protection logic processing module. The transmission of the fault report file and the fault recording file between different processing modules is realized by adopting a standard TFTP protocol, the problem of large limitation caused by adopting a private protocol in the existing communication protocol is solved, the universality of file transmission is improved, and the transmission efficiency is improved.
Description
Technical Field
The invention relates to the technical field of relay protection control, in particular to a data transmission method of an embedded relay protection device.
Background
At present, the intelligent power grid in China enters a comprehensive construction period, the market share of an intelligent substation system is rapidly increased, and the research and development optimization requirements of a software platform are explosively increased; the power system has higher and higher requirements on the functions, performance and reliability of relay protection and intelligent electronic equipment, and in order to meet the performance requirements, the functions need to be divided in a modularized manner and distributed into different processors.
The data transmission is carried out among different processors, and the scheme which is used more at present is that the data transmission is carried out through a private protocol, the private protocol is large in limitation, the length of each frame of data is limited, and the subsequent frames, the transmission failure, the retransmission mechanism and the like are not perfect.
Disclosure of Invention
The embodiment of the invention aims to provide a data transmission method for an embedded relay protection device, which realizes the transmission of fault report files and fault recording files among different processing modules by adopting a standard TFTP protocol, overcomes the problem of large limitation caused by adopting a private protocol in the existing communication protocol, improves the universality of file transmission and improves the transmission efficiency.
In order to solve the above technical problem, an embodiment of the present invention provides a data transmission method for an embedded relay protection device, where the embedded relay protection device includes: the protocol processing module and the protection logic processing module capable of carrying out data interaction comprise the following steps:
acquiring a fault report file and/or a fault recording and broadcasting file;
converting the fault report file and/or the fault recording and broadcasting file into a preset format file through a protection logic processing module;
transmitting the preset format file to the protocol processing module through a file transmission protocol and a file information communication protocol;
and deleting the original fault report file and/or the original fault recording and broadcasting file in the protection logic processing module.
Further, the file transfer protocol is used for transferring file data, and the file information communication protocol is used for transferring file information and file commands;
the specification processing module comprises: the file information communication server and the file transmission task client are provided with a file service request linked list;
the protection logic processing module comprises: the file information communication client and the file transmission task server are also provided with a file information linked list.
Further, after the converting the fault report file and/or the fault recording and broadcasting file into a file with a preset format by the protection logic processing module, the method further includes:
sending the converted file with the preset format to an RAM unit;
and the protocol processing module acquires the preset format file from the RAM unit.
Further, the acquiring the fault report file and/or the fault recording and broadcasting file includes:
generating a fault report file and/or a fault recording and broadcasting file, and transferring file information to the file information linked list by calling an information notification interface;
and controlling the file information communication client to acquire the file information in the file information linked list and transmit the file information to the file information communication server.
Further, the converting the fault report file and/or the fault recording and broadcasting file into a preset format file by the protection logic processing module includes:
the file information communication server receives and analyzes the message, and transmits the message information to a read service request linked list;
and the file transmission task client acquires the message information of the read service request linked list and analyzes the message information.
Further, the transmitting the preset format file to the protocol processing module through a file transmission protocol and a file information communication protocol includes:
transmitting the file reading request information to a file reading request processing flow, and transmitting the command information to a command processing flow;
and controlling the file reading process to start the TFTP processing process, and calling a user callback interface after the file reading is successful.
Further, the deleting the original fault report file and/or the original fault recording file in the protection logic processing module includes:
if the file information contains a file deletion mark, the file information and a deletion instruction are transmitted to a file information communication server after the file stream is read successfully;
the file information communication server transmits the file deleting instruction to the file information communication client of the CPU end, and the file information communication client deletes the corresponding file.
Further, the protocol processing module and the protection logic processing module perform data communication through a backplane ethernet or an ethernet.
Further, the specification processing module and the protection logic processing module may be different plug-ins in one processor, and may also be plug-ins in different processors.
The technical scheme of the embodiment of the invention has the following beneficial technical effects:
the transmission of the fault report file and the fault recording file between different processing modules is realized by adopting a standard TFTP protocol, the problem of large limitation caused by adopting a private protocol in the existing communication protocol is solved, the universality of file transmission is improved, and the transmission efficiency is improved.
Drawings
Fig. 1 is a flowchart of a data transmission method for an embedded relay protection device according to an embodiment of the present invention;
fig. 2 is a first logic diagram of a data transmission method for an embedded relay protection device according to an embodiment of the present invention;
fig. 3 is a logic diagram of a second method for transmitting data of an embedded relay protection device according to an embodiment of the present invention;
fig. 4 is a flowchart of a file information communication protocol provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a flowchart of a data transmission method for an embedded relay protection device according to an embodiment of the present invention.
Fig. 2 is a first logic diagram of a data transmission method for an embedded relay protection device according to an embodiment of the present invention.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a data transmission method for an embedded relay protection device, where the embedded relay protection device includes: the protocol processing module and the protection logic processing module capable of carrying out data interaction comprise the following steps:
and S200, acquiring a fault report file and/or a fault recording and broadcasting file.
And S400, converting the fault report file and/or the fault recording and broadcasting file into a preset format file through the protection logic processing module.
S600, the file with the preset format is transmitted to the protocol processing module through a file transmission protocol and a file information communication protocol.
And S800, deleting the original fault report file and/or the original fault recording and broadcasting file in the protection logic processing module.
According to the data transmission method of the embedded relay protection device, the transmission of the fault report file and the fault recording file between different processing modules is realized by adopting a standard TFTP protocol, the problem of large limitation caused by the adoption of a private protocol in the existing communication protocol is solved, the universality of file transmission is improved, and the transmission efficiency is improved.
The file transmission protocol is used for transmitting file data, and the file information communication protocol is used for transmitting file information and file commands. The protocol processing module comprises: the file information communication server and the file transmission task client are provided with a file service request linked list. The protection logic processing module comprises: the file information communication client and the file transmission task server are also provided with a file information linked list.
Specifically, the step S200 of obtaining the fault report file and/or the fault recording and broadcasting file includes:
s210, generating a fault report file and/or a fault recording and broadcasting file, and transferring an information notification interface to transmit file information to a file information linked list.
And S220, controlling the file information communication client to acquire the file information in the file information linked list and transmitting the file information to the file information communication server.
Specifically, in step S400, the converting the fault report file and/or the fault recording and broadcasting file into a preset format file by the protection logic processing module includes:
s410, the file information communication server receives and analyzes the message, and transmits the message information to the read service request linked list.
S420, the file transmission task client acquires the message information of the read service request linked list and analyzes the message information.
Optionally, the preset format file is in a binary format.
Optionally, after the step S400 converts the fault report file and/or the fault recording and broadcasting file into the file with the preset format through the protection logic processing module, the method further includes:
and S510, sending the converted preset format file to an RAM unit.
And S520, the protocol processing module acquires the preset format file from the RAM unit.
Specifically, in step S600, the file with the preset format is transmitted to the protocol processing module through the file transmission protocol and the file information communication protocol, including:
s610, transmitting the file reading request information to a file reading request processing flow, and transmitting the command information to a command processing flow.
S620, controlling the file reading process to start the TFTP processing process, and calling a user callback interface after the file reading is successful.
Further, deleting the original fault report file and/or the original fault recording file in the protection logic processing module in step S800 includes:
and S810, if the file information comprises a file deletion mark, transmitting the file information and a deletion instruction to the file information communication server after the file stream is successfully read.
S820, the file information communication server transmits the file deleting instruction to the file information communication client of the CPU end, and the file information communication client deletes the corresponding file.
Fig. 3 is a logic diagram of a second method for transmitting data of an embedded relay protection device according to an embodiment of the present invention.
As can be seen from fig. 3, after the fault recording and broadcasting file is generated, the user calls the information notification interface to transmit the file information to the file information linked list, and after the fault report file is generated, the user calls the information notification interface to transmit the fault completion command to the file information linked list; after monitoring that the file information linked list item has information, the file information communication client transmits the information to the file information communication server; the file information communication server receives the message, analyzes the message, and transmits the message information to the read service request linked list if the message conforms to the protocol format; when the file transmission client task monitors that the read service request linked list item has information, acquiring the information and analyzing the information; after the analysis content of the information is obtained, the file reading request information is transmitted to a file reading request processing flow, and the command information is transmitted to a command processing flow; the file reading process starts a TFTP processing process, and after the file is successfully read, a user callback interface (information type and file information structure data of the file need to be transmitted) is called; if the file information of the client contains a file deletion mark, the file information and a deletion instruction are transmitted to a file information communication server after the file stream is read successfully; the file information communication server transmits the file deleting instruction to the file information communication client of the CPU end, and the client deletes the corresponding file.
Fig. 4 is a flowchart of a file information communication protocol provided by an embodiment of the present invention.
Referring to fig. 4, the message format of the file information communication protocol includes: the information type + information data structure content is specifically shown in table 1.
TABLE 1
Wherein, the information type 0 parameter states:
cpu _ id: the processor ID number and the internal virtual ID number are used as the unique identification of the plug-in;
file _ type: a file type;
file _ flag: file processing flag: 0: no treatment, 1: deleting the data after the reading is successful;
file _ path: absolute path of file storage in the processor.
cpu _ id: the processor ID number and the internal virtual ID number are used as the unique identification of the plug-in;
type: command type (proprietary definition may be made if desired);
len: a command content length;
value: command content (proprietary definitions may be made if desired).
The task of the file information communication protocol server runs in a protocol processor plug-in, and comprises the following steps: firstly, a task is suspended, and a file generation instruction and a command notification instruction of a client are monitored; after receiving the notification information of the server, storing the information into a read service request linked list; thirdly, a notice of deleting the file is sent to the client side after the file transmission task client side obtains that the file is successfully read and deletes the file flag bit 1.
The tasks of the file information communication protocol client comprise: firstly, monitoring a file generation notification linked list; secondly, actively sending a file generation instruction and a command notification instruction to the client according to the notification linked list information, wherein the instruction comprises path information of a generated file; thirdly, after receiving the response of the server, continuing to generate a notification linked list monitoring linked list by the file; and fourthly, after receiving a file reading completion notification sent by the server, notifying the user.
The file transmission protocol adopts a TFTP protocol, a client side of the file transmission protocol checks a service request linked list in real time, and the service request linked list can have different user requests; "file generation": calling a file reading request processing flow according to information such as a CPU number, a file type, a CPU local file path, a file deleting mark and the like in the linked list entry, acquiring a file from a CPU end by the flow, and calling a user callback function (which is required to be non-blocked) to perform corresponding processing after the file is successfully acquired; "command notification": and starting a command processing flow according to information such as the CPU number, the command type, the command content and the like in the linked list entry, and calling a user command processing callback function (which is required to be non-blocked). The tasks of the server comprise: firstly, the server opens the connection after monitoring the request of the client and transmits data with the length of 512 bytes; secondly, the server must obtain the confirmation of the client to the last data before sending the next packet of data; third, if a datagram is less than 512 bytes, it indicates the end of the transmission.
Both the server and the client of the file transfer protocol are the sender and the receiver of the data, one side transmits the data receiving response, and the other side receives the response transmission data. If a datagram is lost during transmission, the sender retransmits the last unacknowledged data after a timeout.
The client provides a file reading interface for the user, and the interface is responsible for storing the information related to the reading request of the user into a reading service request linked list. The TFTP client task monitors the read service request linked list and performs corresponding operations. The TFTP server needs to implement the special processing required after the file transfer is complete: and marking the file state with successful reading as successful reading.
Optionally, the protocol processing module and the protection logic processing module perform data communication through a backplane ethernet or an ethernet.
Optionally, the specification processing module and the protection logic processing module may be different plug-ins in one processor, or may be plug-ins in different processors.
The embodiment of the invention aims to protect a data transmission method of an embedded relay protection device, and the embedded relay protection device comprises the following steps: the protocol processing module and the protection logic processing module capable of carrying out data interaction comprise the following steps: acquiring a fault report file and/or a fault recording and broadcasting file; converting the fault report file and/or the fault recording and broadcasting file into a preset format file through a protection logic processing module; transmitting the file with the preset format to a protocol processing module through a file transmission protocol and a file information communication protocol; and deleting the original fault report file and/or the original fault recording and broadcasting file in the protection logic processing module. The technical scheme has the following effects:
the transmission of the fault report file and the fault recording file between different processing modules is realized by adopting a standard TFTP protocol, the problem of large limitation caused by adopting a private protocol in the existing communication protocol is solved, the universality of file transmission is improved, and the transmission efficiency is improved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A data transmission method for an embedded relay protection device is characterized in that the embedded relay protection device comprises the following steps: the protocol processing module and the protection logic processing module capable of carrying out data interaction comprise the following steps:
acquiring a fault report file and/or a fault recording and broadcasting file;
converting the fault report file and/or the fault recording and broadcasting file into a preset format file through a protection logic processing module;
transmitting the preset format file to the protocol processing module through a file transmission protocol and a file information communication protocol;
and deleting the original fault report file and/or the original fault recording and broadcasting file in the protection logic processing module.
2. The data transmission method of embedded relay protection device according to claim 1,
the file transmission protocol is used for transmitting file data, and the file information communication protocol is used for transmitting file information and file commands;
the specification processing module comprises: the file information communication server and the file transmission task client are provided with a file service request linked list;
the protection logic processing module comprises: the file information communication client and the file transmission task server are also provided with a file information linked list.
3. The embedded relay protection device data transmission method according to claim 2, wherein after the fault report file and/or the fault recording and broadcasting file are/is converted into a file with a preset format by the protection logic processing module, the method further comprises:
sending the converted file with the preset format to an RAM unit;
and the protocol processing module acquires the preset format file from the RAM unit.
4. The embedded relay protection device data transmission method according to claim 2, wherein the acquiring a fault report file and/or a fault recording and broadcasting file comprises:
generating a fault report file and/or a fault recording and broadcasting file, and transferring file information to the file information linked list by calling an information notification interface;
and controlling the file information communication client to acquire the file information in the file information linked list and transmit the file information to the file information communication server.
5. The embedded relay protection device data transmission method of claim 2, wherein the converting the fault report file and/or the fault recording and broadcasting file into a file with a preset format by the protection logic processing module comprises:
the file information communication server receives and analyzes the message, and transmits the message information to a read service request linked list;
and the file transmission task client acquires the message information of the read service request linked list and analyzes the message information.
6. The embedded relay protection device data transmission method according to claim 2, wherein the transmitting the preset format file to the protocol processing module via a file transmission protocol and a file information communication protocol includes:
transmitting the file reading request information to a file reading request processing flow, and transmitting the command information to a command processing flow;
and controlling the file reading process to start the TFTP processing process, and calling a user callback interface after the file reading is successful.
7. The embedded relay protection device data transmission method according to claim 2, wherein the deleting the original fault report file and/or the original fault recording and broadcasting file in the protection logic processing module includes:
if the file information contains a file deletion mark, the file information and a deletion instruction are transmitted to a file information communication server after the file stream is read successfully;
the file information communication server transmits the file deleting instruction to the file information communication client of the CPU end, and the file information communication client deletes the corresponding file.
8. The data transmission method of embedded relay protection device according to claim 1,
and the protocol processing module and the protection logic processing module carry out data communication through a backboard Ethernet or an Ethernet.
9. The data transmission method of embedded relay protection device according to claim 1,
the protocol processing module and the protection logic processing module can be different plug-ins in one processor, and can also be plug-ins in different processors.
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Application publication date: 20210528 |