CN114884927A - Method and device for improving transmission efficiency of DL/T698.45 protocol - Google Patents
Method and device for improving transmission efficiency of DL/T698.45 protocol Download PDFInfo
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000013507 mapping Methods 0.000 claims abstract description 25
- 238000004458 analytical method Methods 0.000 claims abstract description 15
- 238000010586 diagram Methods 0.000 description 9
- 230000004044 response Effects 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 239000003550 marker Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 1
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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
- H04L69/26—Special purpose or proprietary protocols or architectures
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a method and a device for improving the transmission efficiency of a DL/T698.45 protocol, comprising the following steps: acquiring an object short identifier in a DL/T698.45 protocol mapping table; acquiring reading, setting and operating application services corresponding to the object short identifier; removing the data self-analysis part of the application service to obtain a simplified application service; and combining the object short identification and the simplified application service to obtain a simplified DL/T698.45 protocol, and transmitting data through the simplified DL/T698.45 protocol. The problem of low transmission efficiency of the DL/T698.45 protocol in the prior art is solved.
Description
Technical Field
The present application relates to the field of data coding, and in particular, to a method and apparatus for improving transmission efficiency of DL/T698.45 protocol.
Background
The DL/T698.45 protocol is called as the 4 th to 5 th parts of the DL/T698.45-2017 electric energy information acquisition and management system: the communication protocol-object-oriented data exchange protocol (hereinafter referred to as "DL/T698.45 protocol"), which is a communication protocol adopted by power industry power information collection and management systems at present, has been widely used in measurement devices, master stations for use and the like, and brings new problems along with the increasingly wide application of the protocol, on some devices with limited resources or limited bandwidth or pursuing high-efficiency communication, because the redundancy of the DL/T698.45 protocol coding mode is large, the message length is large, the transmission efficiency is low, and therefore an efficient and concise coding mode is needed to reduce the application difficulty and improve the transmission efficiency.
Disclosure of Invention
In order to solve the above problems, the present application provides a method for improving the transmission efficiency of the DL/T698.45 protocol, comprising:
acquiring an object short identifier in a DL/T698.45 protocol mapping table;
acquiring reading, setting and operating application services corresponding to the object short identifier;
removing the data self-analysis part of the application service to obtain a simplified application service;
and combining the object short identification and the simplified application service to obtain a simplified DL/T698.45 protocol, and transmitting data through the simplified DL/T698.45 protocol.
Preferably, obtaining the short identifier of the object in the DL/T698.45 protocol mapping table includes:
generating an object short identifier of the protocol in advance by using a DL/T698.45 protocol mapping table;
and acquiring the object short identifier through the DL/T698.45 protocol mapping table, wherein the object short identifier is represented by hexadecimal coding.
Preferably, the removing the data self-parsing part of the application service to obtain the simplified application service includes:
and removing the data related to the description data attribute in the application service from the analysis part, and reserving the data body in the application service.
Preferably, the combining the short identifier of the protocol object and the simplified application service to obtain the simplified DL/T698.45 protocol includes:
and matching the short protocol object identifier with an attribute descriptor and a method descriptor in the simplified application service to obtain the simplified DL/T698.45 protocol.
The application also provides a device suitable for improving the transmission efficiency of the DL/T698.45 protocol, which comprises:
an object short identifier obtaining unit, configured to obtain an object short identifier in a DL/T698.45 protocol mapping table;
the application service acquisition unit is used for acquiring reading, setting and operating application services corresponding to the object short identifier;
the self-analysis part removing unit is used for removing the data self-analysis part of the application service to obtain a simplified application service;
and the data transmission unit is used for combining the object short identifier and the simplified application service to obtain a simplified DL/T698.45 protocol, and carrying out data transmission through the simplified DL/T698.45 protocol.
Preferably, the object short identifier obtaining unit includes:
the object short identifier generating subunit is used for generating the object short identifier of the protocol in advance by using a DL/T698.45 protocol mapping table;
and the object short identifier acquiring subunit is configured to acquire the object short identifier through the DL/T698.45 protocol mapping table, where the object short identifier is represented by hexadecimal coding.
Preferably, the self-analyzing portion removing unit includes:
and removing the data related to the description data attribute in the application service from the analysis part, and reserving the data body in the application service.
Preferably, the data transmission unit includes:
and the matching subunit is used for matching the short protocol object identifier with the attribute descriptor and the method descriptor in the simplified application service to acquire the simplified DL/T698.45 protocol.
Drawings
FIG. 1 is a flow chart illustrating a method for improving the transmission efficiency of the DL/T698.45 protocol according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an apparatus for improving 698.45 protocol transmission efficiency by DL/T according to an embodiment of the present disclosure.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
Fig. 1 is a schematic flowchart of a method for improving transmission efficiency of a DL/T698.45 protocol according to an embodiment of the present application, where as shown in fig. 1, the method includes the following steps:
step S101, obtaining the object short identification in the DL/T698.45 protocol mapping table.
At present, the byte length of the Object Identifier (OI) of the DL/T698.45 protocol is long and integer, so the message length is large and the transmission performance is reduced.
In the application, the DL/T698.45 protocol mapping table generates the object short identifier of the protocol in advance, and then the object short identifier is obtained through the DL/T698.45 protocol mapping table and is represented by hexadecimal coding. The object short identity (OI) of the DL/T698.45 protocol is composed of one byte and its format definition is shown in Table 1.
TABLE 1 object short identity definitions
Since the objects of the DL/T698.45 protocol are defined using short tags, the objects of the DL/T698.45 protocol are also referred to as short objects.
The DL/T698.45 protocol mapping table is obtained by an object mapping method, and the object mapping method comprises the relational mapping of an object identifier OI, an object attribute descriptor OAD, an object method descriptor OMD and the short object identifier SOI, the short object attribute descriptor SOAD and the short object method descriptor SOMD in the application.
At present, the byte length of an Object Identifier (OI) of the DL/T698.45 protocol is short integer and is represented by 2-byte hexadecimal codes, an object attribute descriptor OAD and an object method descriptor OMD are represented by 4-byte hexadecimal codes, and the OI, OAD and OMD in the DL/T698.45 protocol are basic parts of the whole protocol, so that the encoding length is reduced, and the transmission efficiency is improved.
In the application, OI is replaced by a short object identifier SOI, OAD is replaced by a short object attribute descriptor SOAD, and OMD is replaced by a short object method descriptor SOMD.
The short object identification SOI is composed of one byte and is represented by hexadecimal coding, the representation range of the short object identification SOI is 256 times shorter than that of OI, and the short object identification SOI can be used for devices with small object requirements.
The short object attribute descriptor SOAD is described in Table 2 and is composed of two bytes, which is twice as small as the original OAD, and the short object descriptor SOMD is described in Table 3 and is composed of 2 bytes, which is twice as small as the original OMD.
Table 2 SOAD data type definitions
Table 3 SOMD data type definitions
And step S102, acquiring reading, setting and operating application services corresponding to the object short identifier.
Short object identification based application layer services, including Client-APDU and Server-APDU, are shown in table 4 and table 5.
TABLE 4 Client-APDU Definitions
TABLE 5 Server-APDU Definitions
And acquiring reading, setting and operating application services corresponding to the object short identifier, wherein the client services comprise a reading request, a setting request and an operating request, and the server services comprise a reading response, a setting response and an operating response. See tables 6-11.
1. Request read GET-Request
TABLE 6 GET-Request data type definitions
2. Responding to read GET-Response
TABLE 7 GET-Responsel data type definitions
3. SET-Request
TABLE 8 SET-Request data type definitions
4. Response SET-Response
TABLE 9 SET-Response data type definitions
5. Request operation ACTION-Request
TABLE 10 ACTION-REQUEST DATA TYPE DEFINITIONS
6. Responsive to operation ACTION-Response
TABLE 11 ACTION-RESPONSE DATA TYPE DEFINITIONS
And step S103, removing the data self-analysis part of the application service to obtain the simplified application service.
And removing the data related to the description data attribute in the application service from the analysis part, and reserving the data body in the application service.
Before the short identification of the object is applied, the data body in the DL/T698.45 protocol message is self-analyzed, and data is described through the data type, the number of structural body elements and the like. In the application, the data body omits description data such as data types, structural element numbers and the like, and the coding length is reduced. And the data analysis of the response message does not need to rely on the request message for analysis before the application of the object short identifier, and the response message needs to carry the relevant content of the request message, so that the message length is increased.
And step S104, combining the object short identifier and the simplified application service to obtain a simplified DL/T698.45 protocol, and transmitting data through the simplified DL/T698.45 protocol.
And matching the short protocol object identifier with an attribute descriptor and a method descriptor in the simplified application service to obtain a simplified DL/T698.45 protocol, and transmitting data through the simplified DL/T698.45 protocol to improve the transmission efficiency. The simplified DL/T698.45 protocol is suitable for equipment with fewer objects and simple service, is generally sensing equipment and is not suitable for an electric meter or a collection terminal.
Best mode for carrying out the invention
1. Read request
Requesting: 11010300
11——[11]GET-Request
01 03——SOAD
00-time tag field
Responding: 910100010000
91——[145]GET-Response
01-have data
0001-protocol version number 0001
00-following reporting information field
00-time tag field
The corresponding byte length of the application-specific tag read request is as follows:
requesting: 0501014400030000
Responding: 8501014400030001160001
Comparing the byte length of the regular marker with the short marker results in the following:
| general of | The invention | Percentage saving | |
| Request for | 8 bytes | 4 bytes | 50％ |
| Response to | 11 bytes | 6 bytes | 45％ |
2. Setting request
Requesting: 12010607E 5031304080500008900
12——[12]SET-Request
01 06——SOAD
07E5 03 13 04 08 05 00 00 89——date_time：2021-03-19 08：05：00：137
00-time tag field
Responding: 92000000
92——[146]SET-Response
00-success
00-following reporting information field
00-time tag field
The corresponding byte length of the application conventional identity setup request is as follows:
and (3) sending: 060102400007001B E5031304080500008900
Responding: 86010240000700000000
Comparing the byte length of the regular marker with the byte length of the short marker, the result is as follows:
3. operation request
Requesting: 1301010000
13——[13]ACTION-Request
01 01——SOMD
00-method parameters
00-time tag field
Responding: 9300000000
93——[147]ACTION-Response
00-success
00-result
00-following reporting information field
00-time tag field
The application routine identification operation requests the corresponding byte length as follows:
and (3) sending: 070105001001000F 0000
Responding: 8701050010010000000000
Comparing the byte length of the regular marker with the short marker results in the following:
| general of | The invention | Percentage saving | |
| Request for | 10 bytes | 5 bytes | 50％ |
| Response to | 11 bytes | 5 bytes | 55％ |
As can be seen from the above embodiment, the short object of the DL/T698.45 protocol is obviously shortened in byte length relative to the conventional identifier when being called. By the method for improving the transmission efficiency of the DL/T698.45 protocol, the coding mode of the DL/T698.45 protocol is efficient and concise, and the data transmission efficiency is improved. The problems of large message length and low transmission efficiency caused by large redundancy of a DL/T698.45 protocol coding mode in the prior art are solved.
Based on the same inventive concept, the present application also provides an apparatus 200 for improving the transmission efficiency of the DL/T698.45 protocol, as shown in fig. 2, including:
an object short identifier obtaining unit 210, configured to obtain an object short identifier in a DL/T698.45 protocol mapping table;
an application service obtaining unit 220, configured to obtain a reading, setting, and operating application service corresponding to the object short identifier;
a self-parsing part removing unit 230, configured to remove a data self-parsing part of the application service, and obtain a simplified application service;
a data transmission unit 240, configured to combine the object short identifier and the simplified application service to obtain a simplified DL/T698.45 protocol, and perform data transmission through the simplified DL/T698.45 protocol.
Preferably, the object short identifier obtaining unit includes:
the object short identifier generating subunit is used for generating the object short identifier of the protocol in advance by using a DL/T698.45 protocol mapping table;
and the object short identifier acquiring subunit is configured to acquire the object short identifier through the DL/T698.45 protocol mapping table, where the object short identifier is represented by hexadecimal coding.
Preferably, the self-analyzing portion removing unit includes:
and removing the data related to the description data attribute in the application service from the analysis part, and reserving the data body in the application service.
Preferably, the data transmission unit includes:
and the matching subunit is used for matching the short protocol object identifier with the attribute descriptor and the method descriptor in the simplified application service to acquire the simplified DL/T698.45 protocol.
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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.
Claims (8)
1. A method for improving the transmission efficiency of a DL/T698.45 protocol, comprising:
acquiring an object short identifier in a DL/T698.45 protocol mapping table;
acquiring reading, setting and operating application services corresponding to the object short identifier;
removing the data self-analysis part of the application service to obtain a simplified application service;
and combining the object short identification and the simplified application service to obtain a simplified DL/T698.45 protocol, and transmitting data through the simplified DL/T698.45 protocol.
2. The method of claim 1, wherein obtaining the short identifier of the object in the DL/T698.45 protocol mapping table comprises:
generating an object short identifier of the protocol in advance by using a DL/T698.45 protocol mapping table;
and acquiring the object short identifier through the DL/T698.45 protocol mapping table, wherein the object short identifier is represented by hexadecimal coding.
3. The method of claim 1, wherein removing the data self-parsing portion of the application service to obtain a reduced application service comprises:
and removing the data related to the description data attribute in the application service from the analysis part, and reserving the data body in the application service.
4. The method of claim 1, wherein combining the protocol object short identifier with a reduced application service to obtain a reduced DL/T698.45 protocol comprises:
and matching the short protocol object identifier with an attribute descriptor and a method descriptor in the simplified application service to obtain the simplified DL/T698.45 protocol.
5. An apparatus for improving the transmission efficiency of a DL/T698.45 protocol, comprising:
an object short identifier obtaining unit, configured to obtain an object short identifier in a DL/T698.45 protocol mapping table;
the application service acquisition unit is used for acquiring reading, setting and operating application services corresponding to the object short identifier;
the self-analysis part removing unit is used for removing the data self-analysis part of the application service to obtain a simplified application service;
and the data transmission unit is used for combining the object short identifier and the simplified application service to obtain a simplified DL/T698.45 protocol, and carrying out data transmission through the simplified DL/T698.45 protocol.
6. The apparatus of claim 5, wherein the object short identifier obtaining unit comprises:
the object short identifier generating subunit is used for generating the object short identifier of the protocol in advance by using a DL/T698.45 protocol mapping table;
and the object short identifier acquiring subunit is configured to acquire the object short identifier through the DL/T698.45 protocol mapping table, where the object short identifier is represented by hexadecimal coding.
7. The apparatus of claim 5, wherein the self-analyzing portion removing unit comprises:
and removing the data related to the description data attribute in the application service from the analysis part, and reserving the data body in the application service.
8. The apparatus of claim 5, wherein the data transmission unit comprises:
and the matching subunit is used for matching the short protocol object identifier with the attribute descriptor and the method descriptor in the simplified application service to acquire the simplified DL/T698.45 protocol.
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2021
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| US20050055398A1 (en) * | 2001-03-27 | 2005-03-10 | Microsoft Corporation | Protocol agnostic request response pattern |
| CN104852955A (en) * | 2015-03-30 | 2015-08-19 | 新浪网技术(中国)有限公司 | Data processing method and system |
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