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Method for rapidly and automatically detecting IEC104 protocol message

An IEC104, automatic detection technology, applied in the direction of digital transmission systems, electrical components, transmission systems, etc., can solve problems such as test speed and efficiency defects, achieve the effect of solving chaotic management, saving manpower and material resources, and improving access speed

Active Publication Date: 2013-10-23
CHANGCHUN POWER SUPPLY OF JILIN POWER +2
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Problems solved by technology

At present, in the process of IEC104 protocol testing, the existing IEC104 protocol testing tools mostly rely on manual testing item by item and rely on the rich experience of professional technicians to judge the consistency of IEC104 protocol, so there are defects in testing speed and efficiency

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  • Method for rapidly and automatically detecting IEC104 protocol message
  • Method for rapidly and automatically detecting IEC104 protocol message
  • Method for rapidly and automatically detecting IEC104 protocol message

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. The specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0042] It should be noted that the format of the IEC104 protocol output message includes three formats of I frame, U frame and S frame, and the IEC104 protocol output message format includes start character, ASDU length, control domain octet 1, control Field octet 2, control field octet 3, control field octet 4, and application service data unit ASDU, where the application service data unit ASDU only appears in I-frame format messages, and the length is variable , whose maximum value is 253, such as Figure 6 , Figure 7 As shown in the frame format of the transmission message, those skilled in the art should understand the specific frame format, and will not repeat it here.

[0043] It should be noted that error...

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Abstract

The invention relates to a method for rapidly and automatically detecting an IEC104 protocol message. The method comprises starting / stopping mechanism detection of an IEC104 protocol, IEC104 protocol testing process detection andcommand frame format detection of an IEC104 protocol application layer, and is characterized by comprising the following steps that S1, a sender sends a starting message and a stopping message of the IEC104 protocol to detect whether a receiver starts and stops message transmission or not and judge whether the starting and stopping mechanism of the IEC104 protocol of the receiver is right or not; S2, the sender sends a testing frame message of a U-frame format to detect whether the receiver has a testing frame response message and judge whether the testing process of the IEC104 protocol of the receiver is right or not; S3, the sender sends application layer command messages one by one to detect the response message of the receiver to an application layer command and judge whether the application layer command response message of the receiver IEC104 protocol is right or not; and S4, a detection report is automatically generated for each detected conclusion. According to the method, the IEC104 protocol of each supplier is communicated together, a problem of mess management of a plurality of communication versions of the IEC104 protocols is solved, the communication protocol access speed is increased during system expansion, and running safety of an electric-power automation system is ensured.

Description

technical field [0001] The invention relates to a fast and automatic detection method for an IEC104 protocol message, which belongs to the field of communication transmission detection. technical background [0002] With the widespread application of computer network technology in electric power automation, data exchange using the network communication protocol of the Ethernet medium has been widely used in electric power automation systems. The communication transmission of the measurement and control system in the automation system mostly adopts the IEC60870-5-104 communication protocol (referred to as the IEC104 protocol). As an international standard communication protocol, the IEC104 protocol has the advantages of good real-time performance, high reliability, large data flow, easy information expansion, and support for network transmission. The existing IEC104 protocol has been applied to the power automation system by domestic and foreign mainstream power automation s...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/06
Inventor 王国友崔昀晟王波石钰刘阳张喜林曹建平朱昌勇
Owner CHANGCHUN POWER SUPPLY OF JILIN POWER
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