CN109889387A - A kind of IEC61850 is again coupled to accelerated method - Google Patents
A kind of IEC61850 is again coupled to accelerated method Download PDFInfo
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- CN109889387A CN109889387A CN201910171987.6A CN201910171987A CN109889387A CN 109889387 A CN109889387 A CN 109889387A CN 201910171987 A CN201910171987 A CN 201910171987A CN 109889387 A CN109889387 A CN 109889387A
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Abstract
The invention discloses a kind of IEC61850 to be again coupled to accelerated method, specifically includes, and defines TDL description file format；Device side IEC61850 software forms the binary content of TDL description after device powers on or after device capability describes file download in memory, and stores corresponding MD5 value；PC machine client software for the first time attachment device when, data model is read using 61850 communication protocol of standard IEC and process, is formed and stores TDL and describe file and MD5 value；When being again coupled to, by the MD5 value of proprietary protocol acquisition device side, whether consistent compare both ends, if unanimously, after IEC61850 successful connection reading local TDL describes file, reconstructs data model, no longer issue the message for reading data model.This method frequently debugging frequent for needs disconnects and the biggish device of model, can effectively reduce the time being again coupled to, improve debugging efficiency.
Description
Technical field
The present invention relates to a kind of IEC61850 to be again coupled to accelerated method, belongs to IEC61859 field of communication technology.
Background technique
Need a unified information interface between relay protection device, the interoperability between Lai Shixian equipment,
IEC61850 standard is worked out under this requirement background, and it is an object of the present invention to provide one with being widely used property, powerful
Communication protocol, allow various equipment by using the protocol realization interoperate.The content of IEC61850 not only covered
The communication protocol of journey layer, station level, and cover the modeling of data and device, engineering are integrated and implement method, consistency
It is required that and test etc. contents, can effectively instruct the engineering construction of Control protection system.
In the communication process of IEC61850 client and server end, it is a ratio that client, which reads data model by message,
Relatively time-consuming process describes file for ICD(device capability) big device usually requires 5 minutes or more, this in the debugging stage,
It needs frequent progress fixed value adjusting-device is restarted-in the operation reconnected, expends more time and repeating to read data model
On.Due to embedded equipment limited storage space, not extra resource stores some intermediate files, therefore needs to ask for above-mentioned
Topic provides solution.
Summary of the invention
The purpose of the present invention is to provide a kind of IEC61850 to be again coupled to accelerated method, in IEC61850 station level MMS
It communicates to connect in service process, for again, repeatedly connecting, it is time-consuming to reduce connection.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows:
A kind of IEC61850 is again coupled to accelerated method, comprising the following steps:
1) the template description language TDL description file format for being suitable for forming IEC61850 communication data model is defined；
2) device side IEC61850 service terminal software is after device powers on or after device capability describes file download, in reading device
Device capability describes file, forms TDL in memory and describes file, and the corresponding MD5 value of binary content is stored as privately owned
File；
3) PC machine IEC61850 client software for the first time attachment device when, read using 61850 communication protocol of standard IEC and process
Data model forms and stores the MD5 value that TDL describes file and the TDL describes file；The data model refers to device capability
Model data example in file is described；
4) before PC machine IEC61850 client software is again coupled to device, the TDL for obtaining the device being locally stored describes file
MD5 value, and the MD5 value of file is described by the TDL that proprietary protocol acquisition device side stores；
5) compare the MD5 value of PC machine storage and whether the MD5 value that device side stores is consistent, if unanimously, initiating and device
IEC61850 connection reads the TDL that the step 2 generates and describes file, reconstructs data model, no longer issue after successful connection
Read the message of data model；If inconsistent, data model is read using 61850 communication protocol of standard IEC and process, is used in combination
The TDL of device side describes file and MD5 value updates the TDL that PC machine stores and describes file and MD5 value.
In step 1) above-mentioned, the TDL describes file using XML hierarchy format.
TDL above-mentioned describes file according to server S erver- logical device LD- logical node example LN- functional restraint
6 layers of structure of FC- data object D0- data attribute DA divide.
The storage attribute of logical node example LN and functional restraint FC above-mentioned have: title name, type type, level draw
StrType is described with the TDL of 1 straton member of name refrence, ASN.1 code/decode type number typeID and Ge.
Data object D0 and data attribute DA storage attribute above-mentioned has: title name, type type, level reference name
Refrence, ASN.1 code/decode type number typeID, each 1st straton member TDL strType, ASN.1 encoding and decoding are described
Length nsize and current value val.
In step 2 above-mentioned, the process that TDL describes file is formed are as follows: device side IEC61850 server-side reading device energy
Power describes the model data example in file, is TDL language model data instance transfer and stores.
In step 5) above-mentioned, data model restructuring procedure the following steps are included:
11) IEC61850 client reads local tool side TDL and describes file；
12) IEC61850 client reads logic device catalogue；
13) IEC61850 client reads the LN of each logic device under logic device catalogue；
14) IEC61850 client reads the DO list under each LN；
15) IEC61850 client reads each DO attribute；
16) IEC61850 client reads the DA under each DO；
17) IEC61850 client reads the attribute of each DA.
After adopting the above scheme, the invention has the following beneficial effects:
The method of the present invention makes in the case where mounted cast file does not change, PC machine debug client software the 2nd time and
File building data model is described by reading the TDL being locally stored in subsequent connection procedure, original needs are completed for 5 minutes
The process of IEC61850 connection reading model, which is reduced to, only to be needed 20 seconds, is obviously improved efficiency, and by verification MD5 value, can and
When detect that device side model file changes, and describe file by forming new TDL again, reduce the consumption of subsequent connection
When.
The method of the present invention is debugged in factory, field adjustable especially IEC61850 adjusting definite value needs rebooting device to connect again
In the case where connecing, has and meaning is widely applied, be obviously improved debugging efficiency.
Detailed description of the invention
Fig. 1 is that IEC61850 is again coupled to accelerated method flow chart in the present invention；
Fig. 2 is that TDL describes file hierarchy figure in the present invention；
Fig. 3 is to describe file by TDL in the present invention to construct data model exemplary diagram.
Specific embodiment
The invention will be further described below.Following embodiment is only used for clearly illustrating technical side of the invention
Case, and not intended to limit the protection scope of the present invention.
Referring to Fig. 1, IEC61850 of the invention is again coupled to accelerated method, realizes that process is as follows:
1) it defines the template description language for being suitable for being formed IEC61850 communication data model and describes file (TDL describes file) lattice
Formula；As shown in Fig. 2, TDL describes file using XML hierarchy format, according to Server (server)-LD (logical device)-LN
(logical node example)-FC(functional restraint)-D0(data object)-DA(data attribute) and 6 layers of structure divide.
Preferably, LN and FC storage attribute have name(title), type(type), refrence(level reference name),
The TDL description of typeID (ASN.1 code/decode type number), each 1st straton member of strType().
DO and DA storage attribute have name(title), type(type), refrence(level reference name), typeID
The TDL of (ASN.1 code/decode type number), each 1st straton member of strType(is described), the nsize (length of ASN.1 encoding and decoding
Degree), val (current value), ASN.1 abstract syntax notation one (Abstract Syntax Notation One), ASN.1 is a kind of
ISO/ITU-T standard describes a kind of pair of data and is indicated, encodes, transmitting and decoded data format, it provides one
A whole set of regular format is used for the structure of description object.
2) device side IEC61850 service terminal software reads dress after device powers on or after device capability describes file download
It sets middle device capability and describes file, obtain the data type information (type, bType attribute) of the DO/DA of each logical node,
TDL is formed in memory and describes file, and the corresponding MD5 value of binary content is stored as privately owned file.BType is device capability
Minimum data type in file in template is described；Include several DA in each DO, again includes several bType in each DA, often
The type of a DO/DA is all Type.
Template description language (TDL) is the realization of extensible markup language (XML).Generate the process of this file just
It is attachment device, reading device model data example, because mounted cast data instance is converted to TDL language and is stored.
3) PC machine IEC61850 client software for the first time attachment device when, using 61850 communication protocol of standard IEC and process
Data model is read, the MD5 value that TDL describes file and this document is formed and store.Data model is exactly device capability description text
Model data example in part.The full name of MD5 is message-digest algorithm 5(md5-challenge), it
Effect is to allow the large capacity information (to be exactly at a kind of format of secrecy by " compression " before signing private secret key with digital signature software
The byte serial of one random length is transformed into the big integer of a fixed length).
4) before PC machine IEC61850 client software is again coupled to device, the TDL description for the device being locally stored is obtained
The MD5 value of file, and the MD5 value of file is described by the TDL of proprietary protocol acquisition device side.
5) compare the MD5 value of PC machine storage and whether the MD5 value that device side stores is consistent, if unanimously, initiation and device
IEC61850 connection, read step 2 after successful connection) in the TDL description that generates after device download apparatus capabilities description file
File.Data model is reconstructed, the message for reading data model is no longer issued.If inconsistent, communicated using standard IEC 61850
Specification and process read data model, and update the MD5 value that TDL describes file and this document, i.e., describe text with the TDL of device side
Part and the TDL of MD5 value replacement PC machine storage describe file and MD5 value.
Data model restructuring procedure is as shown in figure 3, include following procedure:
11) IEC61850 client reads local tool side TDL and describes file；
12) IEC61850 client reads logic device catalogue；
13) IEC61850 client reads the LN of each logic device under logic device catalogue；
14) IEC61850 client reads the DO list under each LN；
15) IEC61850 client reads each DO attribute；
16) IEC61850 client reads the DA under each DO；
17) IEC61850 client reads the attribute of each DA.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of IEC61850 is again coupled to accelerated method, which comprises the following steps:
1) the template description language TDL description file format for being suitable for forming IEC61850 communication data model is defined；
2) device side IEC61850 service terminal software is after device powers on or after device capability describes file download, in reading device
Device capability describes file, forms TDL in memory and describes file, and the corresponding MD5 value of binary content is stored as privately owned
File；
3) PC machine IEC61850 client software for the first time attachment device when, read using 61850 communication protocol of standard IEC and process
Data model forms and stores the MD5 value that TDL describes file and the TDL describes file；The data model refers to device capability
Model data example in file is described；
4) before PC machine IEC61850 client software is again coupled to device, the TDL for obtaining the device being locally stored describes file
MD5 value, and the MD5 value of file is described by the TDL that proprietary protocol acquisition device side stores；
5) compare the MD5 value of PC machine storage and whether the MD5 value that device side stores is consistent, if unanimously, initiating and device
IEC61850 connection reads the TDL that the step 2 generates and describes file, reconstructs data model, no longer issue after successful connection
Read the message of data model；If inconsistent, data model is read using 61850 communication protocol of standard IEC and process, is used in combination
The TDL of device side describes file and MD5 value updates the TDL that PC machine stores and describes file and MD5 value.
2. a kind of IEC61850 according to claim 1 is again coupled to accelerated method, which is characterized in that the step 1)
In, the TDL describes file using XML hierarchy format.
3. a kind of IEC61850 according to claim 2 is again coupled to accelerated method, which is characterized in that the TDL description
File is according to server S erver- logical device LD- logical node example LN- functional restraint FC- data object D0- data category
Property DA 6 layers of structure divide.
4. a kind of IEC61850 according to claim 3 is again coupled to accelerated method, which is characterized in that the logical node
The storage attribute of example LN and functional restraint FC has: title name, type type, level reference name refrence, ASN.1 compile solution
The TDL of 1 straton member of code type number typeID and Ge describes strType.
5. a kind of IEC61850 according to claim 3 is again coupled to accelerated method, which is characterized in that the data object
D0 and data attribute DA storage attribute has: title name, type type, level reference name refrence, ASN.1 code/decode type
Number typeID, each 1st straton member TDL the length nsize and current value val of strType, ASN.1 encoding and decoding are described.
6. a kind of IEC61850 according to claim 1 is again coupled to accelerated method, which is characterized in that the step 2
In, form the process that TDL describes file are as follows: the pattern number in device side IEC61850 server-side reading device capabilities description file
Factually example is TDL language model data instance transfer and stores.
7. a kind of IEC61850 according to claim 1 is again coupled to accelerated method, which is characterized in that the step 5)
In, data model restructuring procedure the following steps are included:
11) IEC61850 client reads local tool side TDL and describes file；
12) IEC61850 client reads logic device catalogue；
13) IEC61850 client reads the LN of each logic device under logic device catalogue；
14) IEC61850 client reads the DO list under each LN；
15) IEC61850 client reads each DO attribute；
16) IEC61850 client reads the DA under each DO；
17) IEC61850 client reads the attribute of each DA.
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