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IEC-60870-5-104 protocol message monitoring method

A technology of protocol messages and messages, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as complex calculations, unfixed TCP/IP protocol delays, and difficult implementation

Active Publication Date: 2018-01-05
上海许继电气有限公司 +2
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AI Technical Summary

Problems solved by technology

However, due to the unfixed delay of the TCP / IP protocol, in addition to controlling the network traffic, it is also necessary to monitor the packets of the 104 protocol in the specific implementation
[0005] In the prior art, one class judges the link connection status by regularly sending test messages, and cannot judge the real-time message structure error; one class uses the port mirroring method to capture real-time messages, and carefully checks the message structure. However, judging the message type by the message length is prone to errors, and this method can only analyze the message structure, and cannot monitor the control process involving multiple messages; The structure and various commands have carried out multi-dimensional statistics, but the calculation is too complicated, the implementation is difficult, and the practicability is poor

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  • IEC-60870-5-104 protocol message monitoring method
  • IEC-60870-5-104 protocol message monitoring method
  • IEC-60870-5-104 protocol message monitoring method

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Embodiment Construction

[0067] In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

[0068] see figure 1 , in a specific embodiment, the IEC-60870-5-104 protocol message monitoring method has the following steps:

[0069] (1) Initialize the corresponding variables to zero, clear the TCP connection mapping table map_link and the control process mapping table map_ctl, and the corresponding variables include report cycle timer t_rpt, link communication state timer t_commuState, telemetry refresh state timer t_rfhState[n], Where n represents the number of telemetry points, the number of times the master station closes the TCP connection n_masterclose, the number of times the slave station closes the TCP connection n_slaveclose, the number of times the telemetry data is invalid n_teleMesInvalid, the number of times the telemetry data overflows n_teleMesOv, and the number of times the telemetry d...

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Abstract

The invention relates to an IEC-60870-5-104 protocol message monitoring method. The IEC-60870-5-104 protocol message monitoring method comprises the steps of initiating variables, building a message parsing thread and building a decision-making thread. The IEC-60870-5-104 protocol message monitoring method can judge the state of a 104 link simply and conveniently, can analyze a real-time message structure, can monitor remote control and remote signaling processes, can report a serious error at once and can submit statistical information periodically; Omni-directional monitoring of the 104 protocol is realized; and the communication reliability is improved.

Description

technical field [0001] The invention relates to the field of intelligent substation network message analysis, in particular to the technical field of communication protocol message analysis, and specifically refers to an IEC-60870-5-104 protocol message monitoring method. Background technique [0002] The smart substation is a key link of the smart grid, and the networked communication platform is an important feature of it. The traditional cable direct connection communication method of the traditional substation is replaced by a switch and a network cable. The secondary devices in the station exchange data through network messages. With more and more data generated by smart devices and equipment in the station, it is becoming more and more difficult to debug and maintain secondary equipment. The real-time monitoring of equipment effectively improves the operation efficiency of the substation. [0003] There are many types of equipment in the smart substation, and the req...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/26
Inventor 袁同浩王力陈浩黄保莉高玉宝沈永良赵德基陈鹏狄军峰黄小倩刘裕桦邬军军张漪
Owner 上海许继电气有限公司
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