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Real-time holographic lossless compression method for productive time sequence data

A time-series data and lossless compression technology, which is applied in the direction of electrical components, code conversion, etc., can solve the problems of lossless compression of production-type time-series data, discarding data, etc., and achieve the effect of improving compression rate and strong pertinence

Active Publication Date: 2012-04-25
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0005] Although the revolving door compression algorithm (SDT) has strong real-time performance, because it will discard part of the data when compressing data, it cannot meet the demand for lossless compression of production time series data.

Method used

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  • Real-time holographic lossless compression method for productive time sequence data
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  • Real-time holographic lossless compression method for productive time sequence data

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Embodiment Construction

[0046] A series of real production-type time series data time tags are incremental values, with a fixed sampling interval, and the sampled data is the original data that needs to be compressed, so the original data is also incremental. In addition, the sampling period is generally fixed, that is, the same amount of raw data is obtained each time. The following processing flow generally compresses every 1000 pieces of original data. Since the change between adjacent original data is very small, a continuous interval with a small span will be generated in most cases, so the present invention adopts the compression processing method of the following embodiment.

[0047] Such as figure 1 As shown, the real-time holographic lossless compression method of production-type time-series data compresses the time-label, data value and data quality in the production-type time-series data respectively, and forms time-label compressed data, data value compressed data and Data quality compr...

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Abstract

The invention discloses a real-time holographic lossless compression method for productive time sequence data, which comprises the steps of: respectively independently compressing three numerical ranges of each data in N productive time sequence data: a time label, a data value and data quality; respectively forming time label compression data, data value compression data and data quality compression data; and combining the three compression data into a complete compression data. In the method, productive time sequence data and files of each industry can be efficiently compressed in a lossless mode; and urgent demands of industries with enormous productive data, such as basic industry, electrics, telecommunication, chemical engineering, steel and the like for transmission, distribution, computing processing and storage of time sequence data can be satisfied.

Description

technical field [0001] The invention relates to a data compression method, in particular to a real-time holographic lossless compression method for production time series data. Background technique [0002] At present, the field of computer hardware and software to industrial control technology is developing rapidly, and the multi-core technology and multi-node high-speed physical memory technology in the computer field have become mature and stable parallel technology support. In the field of industrial control, especially in the power industry, due to the continuous improvement of control and application refinement, people's application requirements for production-type time-series data have reached a new height: the sampling of production-type time-series data has been accurate to 100 frames per second ; Time-series data related to analysis and operation usually requires online storage for more than 5 years, etc. Due to the high accuracy of individual data and the accumul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M7/40
Inventor 周伊琳陈炯聪黄缙华孙建伟陈扬
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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