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A sparse representation method for power plant data compression

A data compression and sparse representation technology, applied in electrical components, information technology support systems, code conversion, etc., can solve problems such as data faults and damage to original data structures, avoid resource waste, and solve efficient storage and transmission problems Effect

Active Publication Date: 2022-07-08
JIANGSU FRONTIER ELECTRIC TECH
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Problems solved by technology

[0004] Purpose of the invention: Aiming at the problems of destroying the original data structure and data gaps when the traditional compression method compresses power plant data, the present invention proposes a sparse representation compression algorithm, which can not only compress data quickly, but also effectively Preserve the original data characteristics

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  • A sparse representation method for power plant data compression
  • A sparse representation method for power plant data compression
  • A sparse representation method for power plant data compression

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Embodiment Construction

[0032] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. A sparse representation power plant data compression method, comprising the following steps:

[0033] Step 1. Data collection: The data collected on the power plant is in the form of a .txt file. Each line is divided into three fields, representing the measurement point code field, timestamp, and load value, where the timestamp is the measurement point time value minus 2001 The difference formed at 0:00:00 on January 1, the code field is the desensitized data of the name of the power plant where it is located, and is stored in the form of a time series;

[0034] Step 2, data preprocessing: preprocessing the above time series data to obtain a modeling data set;

[0035]Step 3. Data modeling: use the modeling data set to establish a power plant data compression model based on sparse representation, then perform data compression on the modeling da...

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Abstract

The invention provides a sparse representation power plant data compression method, which belongs to the field of storage and transmission of power plant operation process data. The method screens the power plant data according to a new strategy, and introduces a model design method based on the data density distribution to achieve the effect of data compression. The specific steps of the method are as follows: filter the similar or coincident data in the power plant data by continuously updating the circular area through iteration time, and then use the maximum filtering criterion to limit the amount of data filtering in a single circular area to prevent the data structure from being damaged, so that the compression The power plant data is not only stored in a small amount, but also the data structure has not changed greatly. This method can not only reduce the compression rate to less than 15%, but the compressed data can still maintain the characteristics of the original data, which verifies the feasibility and effectiveness of the proposed algorithm, and can be applied to the storage and transmission of data in the actual power plant operation process. field.

Description

technical field [0001] The invention belongs to the field of storage and transmission of power plant data, in particular to a sparsely represented power plant data compression method. Background technique [0002] The use of power equipment can be seen everywhere. Power equipment occupies a very important position in people's production and life, and is closely related to people's lives. Any activities of people are inseparable from the support of the power industry. Therefore, the state vigorously implements the reform of the power industry system and the upgrading of related power technologies. However, due to the relatively incomplete process equipment and field data involved in the power industry, the power equipment still has problems such as unstable operation status, diversified equipment parameters, sudden failures and high parameter complexity. In order to improve the actual value of power production, real-time monitoring of power equipment is of great forward-look...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M7/30
CPCH03M7/30Y04S10/50
Inventor 孙栓柱孙彬周春蕾王林王其祥刘克云沈洋高进曹瑀宏张世豪
Owner JIANGSU FRONTIER ELECTRIC TECH
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