Compression display method and system for information redundancy jitter characteristics

Abstract

The invention discloses a compression display method and system for information redundancy jitter characteristics, and the method comprises the steps: collecting alarm information jitter characteristic parameters based on an SCADA alarm system according to a set collection period, and constructing an alarm information jitter rate calculation model according to the collected alarm information jitter characteristic parameters; judging whether the alarm information jitter rate obtained by the alarm information jitter rate calculation model exceeds a preset threshold value or not, if the alarm information jitter rate exceeds the threshold value, selecting a time window according to the statistical big data theorem, executing and creating a compression display and decompression strategy, displaying the alarm information and if not, directly displaying the alarm information. The invention has a good inhibition effect on flooding alarm and low-efficiency redundancy alarm, solves the problems of screen refreshing and screen flickering caused by massive alarm information, and reduces the working intensity of operation and maintenance personnel; the information expression and storage efficiency of the SCADA alarm log system, the information loading capacity and the information layout utilization rate are improved, and the alarm information amount (information entropy) is maximized.

Description

technical field [0001] The invention relates to the technical field of information processing and compression, in particular to a method and system for compressing and displaying information redundancy jitter features. Background technique [0002] At present, mainstream SCADA systems are equipped with alarm, event or log record storage and display systems, which can provide information support for operation and maintenance personnel to evaluate and make decisions on the operating status of equipment and systems. The accuracy, stability and high efficiency of the system's expression of information play a vital role in the entire SCADA system. Usually, the mainstream SCADA system sets up a list of events and alarm information, and adopts the principle of strictly following the typesetting and display of the time sequence of information occurrence. At the same time, different colors and flashes are used to emphasize and distinguish information. [0003] The existing event al...

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Problems solved by technology

[0003] The existing event alarm system can basically meet the requirements when the amount of information is not large or the generation rate is low

However, when it is applied to large-scale power plants or system group SCADA, there will be a "flooding" alarm problem in which massive alarm information emerges simultaneously in a short period of time, and an inefficient alarm problem in which a large number of redundant alarms fill the layout. In these two cases, usually Both will reduce the amount of information displayed by event information, and bring great difficulties in information retrieval and search, making the information expression of the entire SCADA system very inefficient. The main problems are:

[0004] 1. Massive information alarms and flooding alarms will bring information "swipe screen", which makes the operation and maintenance personnel unable to carefully check the specific information, resulting in the omission of important information;

[0005] 2. Some "chattering" event information keeps swiping the screen, which will quickly move important information out of the line of sight of personnel, reducing the amount of information and efficiency of important information expressed by the system;

[0006] 3. A large amount of redundant event information also brings great challenges to data persistent storage and offline analysis and search

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