Method for compressing and storing communication messages

Abstract

The invention discloses a method for compressing and storing communication messages, which is characterized in that the characteristics of the communication messages are utilized to eliminate format feature codes for limiting formats of the communication messages or replace the format feature codes for limiting the formats of the communication messages with briefer preset characters when the messages are stored, thus reaching the effect of decreasing redundant information irrelative to the storage in the communication messages; and under the condition that the contents of the communication messages are not damaged, the communication messages are compressed effectively, and less space is used to store equivalent communication messages. In addition, the communication messages are subjected to secondary compression; according to the characteristics of the different types of communication messages, the most proper secondary compression mode is adopted, such as a dictionary compression mode, a delta compression mode, a partial value compression mode and the like, so that the space for storing the contents of the communication messages is further reduced on the basis of eliminating the format feature codes; and by the pertinent use of the secondary compression mode, the best effect of the secondary compression is reached.

Description

technical field [0001] The invention relates to a technology for compressing and storing communication messages. Background technique [0002] In recent years, with the rapid development of microelectronics and information technology, microcomputer protection devices and microcomputer monitoring systems have begun to be popularized and promoted in substations, power plants, mines, etc. The application of IED) in the power system, data technology began to be popularized in the substation integrated automation system engineering. The digital substation solves the information exchange, interoperability, and information sharing between primary equipment, secondary equipment, and primary and secondary equipment. Traditional analog signals will be replaced by data signals. [0003] In order to ensure the safety of the power system, there are almost no unmonitored functional units in the digital substation, and there is no blind area in the collection of equipment status quantitie...

AI Technical Summary

Problems solved by technology

However, if the time period is set too short, an accident point may not be analyzed correctly due to incomplete data preservation

[0009] 3. Only record the message information at the time of limit violation or displacement (limit value or displacement storage)

Due to the particularity of the structure of the communication message, the compression ratio obtained by using the existing compression method to compress the communication message is close to 1, and the compression effect is not obvious

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