CN106878348B - Master station longitudinal data transmission method based on source end point table model maintenance - Google Patents
Master station longitudinal data transmission method based on source end point table model maintenance Download PDFInfo
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- CN106878348B CN106878348B CN201510906793.8A CN201510906793A CN106878348B CN 106878348 B CN106878348 B CN 106878348B CN 201510906793 A CN201510906793 A CN 201510906793A CN 106878348 B CN106878348 B CN 106878348B
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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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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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
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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Abstract
The invention discloses a method for transmitting longitudinal data between main stations based on source terminal table model maintenance, which adopts an extended IEC-60870-5-104 protocol or an extended DL476-92 protocol to perform data transmission/control operation, the main stations at two sides comprise a data transmitting side main station and a data receiving side main station, the content and meaning of data transmitted by each point number need to be appointed in advance before the data transmission process is performed, namely the transmission content is appointed, the process is automatically realized without manual intervention, the definition of the point number is performed by the data transmitting side main station for unilateral maintenance, and the data receiving side main station does not need manual maintenance. Unilateral maintenance of longitudinal data transmission between the main stations is achieved, the technical threshold of data channel maintenance is lowered, and the efficiency of data channel maintenance is improved.
Description
Technical Field
The invention relates to a method for transmitting longitudinal data between main stations based on maintenance of a source endpoint table model.
Background
At present, data interaction between longitudinal main stations in an electric power system is more and more, a large amount of time and energy of operation and maintenance personnel of the main stations of the electric power system are occupied, data access and maintenance automation are achieved between a traditional substation and the main stations by utilizing a source endpoint table model (namely content and meaning of transmitted data), one part of data transmission modes between the longitudinal main stations are carried out in a traditional IEC-60870-5-104 or DL476-92 mode, and the other part of data transmission modes between the longitudinal main stations are carried out in a TASE.2 mode. The former is only data transmission, and if complete data transmission is realized, the master stations at two sides still need to respectively maintain the point table model; although the problem of bilateral maintenance in IEC-60870-5-104 or DL476-92 is solved, the problems of difficult maintenance and high maintenance technical threshold also exist in the latter.
How to simplify the longitudinal data interactive debugging process between the main stations and reduce the maintenance threshold by using the prior art still has to be solved.
Disclosure of Invention
Aiming at the problems, the invention provides a method for transmitting longitudinal data between main stations based on maintenance of a source endpoint table model, which realizes unilateral maintenance of longitudinal data transmission between the main stations, reduces the technical threshold of maintaining a data channel and improves the efficiency of maintaining the data channel.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
the method for transmitting the longitudinal data between the main stations based on the maintenance of the source end point table model is characterized by comprising the following steps:
1) judging whether data transmission is carried out between the current data transmitting side master station and the current data receiving side master station, if so, entering a step 2), and if not, entering a step 3);
2) stopping current data transmission and sending data transmission stopping information to the data receiving side master station, and entering step 3 after receiving confirmation information sent by the data receiving side master station; after the data receiving side master station sends the confirmation information, a version information file calling request is sent at regular time until the version file can be called correctly;
3) a master station at a data transmitting side establishes a point table model;
4) the master station at the data transmitting side generates a corresponding version information file according to the generated point table model file;
5) the data transmitting side master station responds to the version information file calling request transmitted by the data receiving side master station and transmits the version information file to the data receiving side master station;
6) the master station at the data receiving side judges whether the received version information file is correct or not, and if the received version information file is correct, the step 7) is carried out;
7) the data receiving side master station sends activation data transmission information to the data sending side master station;
8) the master station at the data sending side receives the activation data transmission information and then carries out telemechanical data transmission until the communication is finished;
wherein, the data transmission and control operation is performed by using the extended IEC-60870-5-104 or the extended DL476-92 protocol, and in the above steps 1) -8), when the master station on the data transmission side changes the point table model, the step 1) is entered.
Preferably, in step 6), the master station at the data receiving side analyzes the version information file, compares whether the version of the point table model file in the received version information file is consistent with the currently transmitted point table model file, determines that the received version information file is correct if all the information is consistent, and otherwise determines that the received version information file is incorrect.
Preferably, when it is judged that the point table model described in the received version information file is not consistent with the currently used point table model:
a) a master station at a data receiving side sends a calling request of a point table model file to a master station at a data sending side;
b) the master station at the data transmitting side responds to the calling request of the point table model file and transmits the point table model file to the master station at the data receiving side;
c) and (4) the master station at the data receiving side receives the point table model file, imports the point table model file into the self operating environment, and enters the step 7) after the import is successful.
The invention has the beneficial effects that:
the invention solves the problem of respectively maintaining the point table models of longitudinal data exchange between the master stations, achieves the effect of single-side maintenance of data transmission between the master stations on the basis of not increasing maintenance difficulty and technical threshold, saves the time and energy of automatic maintenance personnel of the existing master stations, and improves the maintenance efficiency of the data transmission channel between the master stations.
Drawings
FIG. 1 is a flow chart of a method for transmitting longitudinal data between master stations maintained based on a source endpoint table model according to the present invention;
FIG. 2 is a simplified CIM/UML diagram of a point table model file according to the present invention;
fig. 3 is an exemplary version information file code of the present invention.
Detailed Description
The present invention will be better understood and implemented by those skilled in the art by the following detailed description of the technical solution of the present invention with reference to the accompanying drawings and specific examples, which are not intended to limit the present invention.
As shown in fig. 1, the method for transmitting longitudinal data between master stations based on maintenance of a source endpoint table model includes the following steps:
1) judging whether data transmission is carried out between the current data transmitting side master station and the current data receiving side master station, if so, entering a step 2), and if not, entering a step 3);
2) stopping current data transmission and sending data transmission stopping information to the data receiving side master station, and entering step 3 after receiving confirmation information sent by the data receiving side master station; after the data receiving side master station sends the confirmation information, a version information file calling request is sent at regular time until the version file can be called correctly;
3) a master station at a data transmitting side establishes a point table model;
4) the master station at the data transmitting side generates a corresponding version information file according to the generated point table model file;
5) the data transmitting side master station responds to the version information file calling request transmitted by the data receiving side master station and transmits the version information file to the data receiving side master station;
6) the master station at the data receiving side judges whether the received version information file is correct or not, and if the received version information file is correct, the step 7) is carried out;
7) the data receiving side master station sends activation data transmission information to the data sending side master station;
8) after receiving the activation data transmission information, the master station at the data transmitting side immediately uses the point table model of the version to transmit telemechanical data until the communication is finished;
wherein, the data transmission and control operation is carried out by adopting an extended IEC-60870-5-104 (the extended IEC-60870-5-104 can refer to https:// en.wikipedia.org/wiki/IEC _60870-5# IEC _60870-5-104) or an extended DL476-92 (refer to http:// www.doc88.com/p-3018718742470.html) specification, and in the above steps 1) -8), when the master station on the data transmission side changes the point table model, the step 1 is entered.
The method adopts the extended IEC-60870-5-104 or the extended DL476-92 protocol to carry out data transmission/control operation, the master stations at the two sides comprise a master station at a data transmitting side and a master station at a data receiving side, the content and meaning of data transmitted by each point number need to be agreed in advance before the data transmission process is carried out, namely the transmission content is agreed, the process is automatically realized without manual intervention, the definition of the point number is carried out by the master station at the data transmitting side for unilateral maintenance, and the master station at the data receiving side does not need to be manually maintained.
Preferably, in step 6), the data receiving side master station parses the version information file, compares whether the version of the point table model file in the received version information file is consistent with the point table model file used by the current transmission, determines that the received version information file is correct if all the information is consistent, that is, determines that the point table model described in the received version information file is consistent with the point table model used by the current data receiving side master station, and otherwise determines that the received version information file is incorrect, that is, determines that the point table model described in the version information file is inconsistent with the point table model used by the current data receiving side master station.
When the received version information file is judged to be incorrect, namely the point table model described in the version information file is inconsistent with the point table model used by the current data receiving side main station:
a) a master station at a data receiving side sends a calling request of a point table model file to a master station at a data sending side;
b) the master station at the data transmitting side responds to the calling request of the point table model file and transmits the point table model file to the master station at the data receiving side;
c) and (4) the master station at the data receiving side receives the point table model file, imports the point table model file into the self operating environment, and enters the step 7) after the import is successful.
In step 3), the master station at the data transmitting side establishes a point table model file described by using a CIM/XML format, and specifically comprises a simplified point table model file or an expanded point table model file. IEC 61970 and 552CIM XML model exchange Format: the CIM/XML is an international standard for short, and most of applications of the power system are based on the CIM/XML to perform offline model exchange. The point table model (i.e. the content and meaning of the transmission data) is described by using an extended CIM/UML, and the point table model file is described by using an extended CIM/XML format and is stored and transmitted by a text file with the prefix name of ". poi". Wherein, CIM is a model specification, which can be represented by UML or XML, if UML is adopted, the representation form is shown in figure 2; if XML is adopted, the file is in XML format.
Simplified point table model file: and (2) adopting a CIM/XML model without primary equipment, namely considering that all the acquisition measuring points are all sub-Control areas (SubControlArea), and the point table file only comprises a main Control area (CIM: HostControlArea) and a sub-Control area (CIM: SubControlArea) of the CIM/XML, and expanding state measuring points (CIM: measurementStatus), analog measuring points (CIM: measurementAnalog) and Control points (CIM: Control). The schematic diagram of CIM/UML is shown in the attached figure 2, and the main attribute meanings are shown in the following figure: table 1, table 2, table 3, table 4 and table 5.
TABLE 1 Main control area (cim: HostControlArea)
| Attribute name | Alias name | Type (B) | Length (byte) | Description of the invention |
| cim:Naming.name | Name (R) | Character string | 32 | Name of main control area |
TABLE 2 sub-control region (cim: SubControlArea)
| Attribute name | Alias name | Type (B) | Length (byte) | Description of the invention |
| cim:Naming.name | Name (R) | Character string | 32 | Sub-control area name |
TABLE 3 analog measurement points (cim: measurementAnaalog)
TABLE 4 State measurement points (cim: MeasurementStatus)
TABLE 5 Control points (cim: Control)
Extended point table model file: the description of a measuring point (CIM: Measurement) and a remote Control point (CIM: Control) is extended in a complete regional power grid CIM/XML model. The main attributes are as follows: table 6 and table 7.
TABLE 6 Measurement points (cim: Measurement)
TABLE 7 Control points (cim: Control)
Correspondingly, the version information file is described by using an XML format, the name of the version file is agreed by the master stations at two sides, and the suffix name of the file is used as 'ver', and the main contents comprise: the name of the point table model file, the size of the point table model file, the last modification time of the point table model file, the compression mode of the point table model file, and the MD5 check code of the point table model file, and example version information file codes are shown in fig. 3, where:
● the name attribute of the < versiofile > node is used to describe the name of the version file;
● the updatetime attribute of the < versiofile > node is used to describe the update time of the version file;
● < cimfile > child node < name > is used to describe extended CIM/XML model file name;
● < cimfile > child node < timestamp > is used for describing the update time of the extended CIM/XML model file;
● < cimfile > child node < size > is used for describing the size of the extended CIM/XML model file, and the unit is byte;
● < cimfile > child node < zip > is used to describe the extended CIM/XML model file compression mode, and its value
Can be 'none' (without compression), 'ZIP' (compression by ZIP mode), 'gzip'
(using GNUzip format), "7z" (compressed using 7zip format);
● < cimfile > child node < md5sum > is used to describe the md5 checksum of the file;
transmitting the version information file;
the above-described preferred solutions are added together, that is, optimal solution steps S1-S11 in fig. 1 are obtained, wherein it is judged only in step S11 whether the data transmission side master station changes the point table model.
The invention solves the problem of respectively maintaining the point table models of longitudinal data exchange between the master stations, achieves the effect of single-side maintenance of data transmission between the master stations on the basis of not increasing maintenance difficulty and technical threshold, saves the time and energy of automatic maintenance personnel of the existing master stations, and improves the maintenance efficiency of the data transmission channel between the master stations.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The method for transmitting the longitudinal data between the main stations based on the maintenance of the source end point table model is characterized by comprising the following steps:
1) judging whether data transmission is carried out between the current data transmitting side master station and the current data receiving side master station, if so, entering a step 2), and if not, entering a step 3);
2) stopping current data transmission and sending data transmission stopping information to the data receiving side master station, and entering step 3 after receiving confirmation information sent by the data receiving side master station; after the data receiving side master station sends the confirmation information, a version information file calling request is sent at regular time until the version file can be called correctly;
3) a master station at a data transmitting side establishes a point table model;
4) the master station at the data transmitting side generates a corresponding version information file according to the generated point table model file;
5) the data transmitting side master station responds to the version information file calling request transmitted by the data receiving side master station and transmits the version information file to the data receiving side master station;
6) the master station at the data receiving side judges whether the received version information file is correct or not, and if the received version information file is correct, the step 7) is carried out;
7) the data receiving side master station sends activation data transmission information to the data sending side master station;
8) the master station at the data sending side receives the activation data transmission information and then carries out telemechanical data transmission until the communication is finished;
wherein, the data transmission and control operation is carried out by adopting an extended IEC-60870-5-104 or an extended DL476-92 protocol, and in the steps 1) to 8), when the master station at the data transmission side changes the point table model, the step 1) is entered;
in step 3), the master station at the data transmitting side establishes a point table model file described by using a CIM/XML format;
in step 3), a simplified point table model file or an expanded point table model file may be used, specifically: simplified point table model file: a CIM/XML model without primary equipment is adopted, namely all the acquisition measuring points are considered to be all the sub-control areas, the point table file only comprises a main control area and a sub-control area of the CIM/XML, and state measuring points, analog measuring points and control points are expanded;
extended point table model file: adding description of a primary equipment measuring point in a local power grid CIM/XML model, and expanding attributes of a measuring point and a control point;
the version information file is described by using an XML format and comprises the following components: the method comprises the following steps of point list model file name, point list model file size, point list model file last modification time, point list model file compression mode and point list model file MD5 check code.
2. The method for transmitting longitudinal data between master stations based on source endpoint table model maintenance as recited in claim 1, wherein in step 6), the master station at the data receiving side parses the version information file, compares whether the version of the point table model file in the received version information file is consistent with the currently transmitted point table model file, determines that the received version information file is correct if all the information is consistent, and otherwise determines that the received version information file is incorrect.
3. The method of claim 2, wherein when the received version information file indicates that the peer table model described therein is inconsistent with the peer table model currently in use:
a) a master station at a data receiving side sends a calling request of a point table model file to a master station at a data sending side;
b) the master station at the data transmitting side responds to the calling request of the point table model file and transmits the point table model file to the master station at the data receiving side;
c) and (4) the master station at the data receiving side receives the point table model file, imports the point table model file into the self operating environment, and enters the step 7) after the import is successful.
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