Monitoring data compression method

A compression method and data monitoring technology, applied in electrical components, code conversion, etc., to achieve high precision, low time and space complexity, and improve the compression rate

Active Publication Date: 2018-10-16
JIANGSU ZHONGKE YILIAN COMM TECH CO LTD
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Problems solved by technology

However, the value of ΔE is fixed in data compression. It is obviously not the most efficient way to compress data with different trend characteristics using the same parameters.

Method used

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0018] figure 1 It is a schematic diagram of compressing original data using a revolving door compression algorithm; the present invention will take this as an example to describe a compression cycle in detail, and does not constrain the present invention.

[0019] figure 1 Among them, point A is the point where the data starts to be recorded, and two points A are taken above and below point A respectively. + and A-, the abscissa is the same as point A, and the ordinate differs from point A by a tolerance parameter ΔE. Traverse the data backwards from point A, respectively from A + and A-point to draw a line to the next data point B to get A + B and A-B two doors, ∠AA + B and ∠AA-B are the angles between the two doors. Use the same method to process the following data points. For the following data points, it is necessary to meet the requirements that the...

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Abstract

The invention provides a monitoring data compression method for improving a spinning door transformation SDT compression method. The improvement is as follows: using loose standard with large tolerance parameter DeltaE for non-sensitive data in original data, and using strict standard with small tolerance parameter DeltaE for the sensitive data in the original data, namely, the tolerance parameterof the strict standard is less than the tolerance parameter of the loose standard; automatically the tolerance parameter DeltaE according to the data fluctuation size in the different loose or strictstandard ranges; furthermore, representing the change fluctuation tendency of the current data by using the step length of the compression period, wherein the tolerance parameter DeltaE is increasedwhen the step length of the compression period is enlarged, and the tolerance parameter DeltaE is reduced when the step length of the compression period is reduced. The storage amount of the monitoring data can be effectively reduced, and the low compression error can be guaranteed at the same time.

Description

technical field [0001] The invention relates to a monitoring data compression method, which is applied to compressing monitoring data generated by various Internet of Things monitoring equipment. Background technique [0002] With the development of the Internet of Things technology, various types of Internet of Things monitoring devices continue to increase, and these devices continuously upload the monitored data to the server or store it locally. These monitoring data have the characteristics of unlimited growth, and the massive amount of historical data puts great pressure on storage efficiency and cost. At the same time, the value of historical monitoring data is getting lower and lower as time goes by. [0003] Therefore, how to reduce the storage space required for monitoring data is an important issue in reducing costs and improving efficiency in IoT applications. [0004] The commonly used compression algorithm is the revolving door compression algorithm. This al...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M7/30
CPCH03M7/3064
Inventor 张涵笑慕福奇吕欣岩
Owner JIANGSU ZHONGKE YILIAN COMM TECH CO LTD
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