Method and device for compressing industrial real-time data

A technology of real-time data and compression method, applied in the direction of code conversion, electrical components, etc., can solve the problem of rapid increase of real-time data, achieve the effect of improving data processing performance, lossless, improving compression rate and decompression performance

Active Publication Date: 2013-08-07
浙江蓝卓工业互联网信息技术有限公司
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Problems solved by technology

[0004] The technical problem to be solved in this application is to provide an industrial real-time data compression method and device to solve the technica...

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  • Method and device for compressing industrial real-time data

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Embodiment Construction

[0074] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0075] The historical data storage system in the industrial control system stores the real-time data in the industrial control system for subsequent process analysis, fault tracing and control scheme improvement. With the large-scale industrial control system, the number of signals in the system has increased exponentially, resulting in a sharp increase in the historical number. In order to ensure the data capacity and operation efficien...

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Abstract

The invention discloses a method and a device for compressing industrial real-time data, which are applied to an industrial control system. The method comprises the following steps of determining a current data point to be stored in the industrial control system, and acquiring a latest stored data point in stored data points in the industrial control system for serving as a target data point; determining a compression time tag of the current data point according to a target time tag in the target data point and a current time tag in the current data point; determining the compression quality code of the current data point according to a target quality code in the target data point and a current quality code in the current data point; determining a compression floating point value in the current data point according to a target floating point value in the target data point and a current floating point value in the current data point; and integrating the compression time tag, the compression quality code and the compression floating point value to obtain a compression data point of the current data point.

Description

technical field [0001] The present application relates to the technical field of industrial real-time data storage, and in particular, to a method and device for industrial real-time data compression. Background technique [0002] A historical data storage system is provided in the industrial control system to save real-time data on site for subsequent process analysis, fault tracing, and control scheme improvement. With the large-scale industrial control system, the number of signals in the system has increased exponentially, resulting in a sharp increase in the historical number. In order to ensure the data capacity and operation efficiency of the industrial control system, it is necessary to compress and store these historical real-time data. [0003] Among them, industrial real-time data is stored in the form of data points, and each data point is composed of time stamp, quality code and numerical value. The time label is the collected time value of the data point, in ...

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Application Information

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IPC IPC(8): H03M7/30
Inventor 徐慧费振华赖晓健黄冬朋
Owner 浙江蓝卓工业互联网信息技术有限公司
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