Power equipment sensing quantity compression and reconstruction method suitable for Internet of Things and related device

By using dictionary matrix to compress and reconstruct the sensor data of the power transformer in the Internet of Things communication system, the problem of high real-time acquisition and transmission of sensing data is solved, effective sparse and efficient transmission of data is achieved, hardware costs are reduced and data quality is maintained.

CN119696592APending Publication Date: 2025-03-25POWER RES INST OF STATE GRID SHAANXI ELECTRIC POWER CO LTD +1
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Patent Information

Application Number
CN202411744133.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-30
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

In the Internet of Things communication system, the real-time acquisition and transmission of power transformer sensing data requires high sampling speed, resulting in excessive economic cost of equipment and the difficulty in effectively compressing and reconstructing sensing data in the prior art.

Method used

The sensor data is compressed and reconstructed by using a dictionary matrix. By constructing a dictionary matrix composed of two basic matrices with as small as possible, the sensing vector is sparse, and the data is effectively compressed, and the correlation of the dictionary matrix is ​​optimized by using the gradient descent iterative method to improve compression efficiency.

Benefits of technology

By sparsely processing sensor data, the transmission rate requirements of the Internet of Things communication system are significantly reduced and the hardware cost is reduced. At the same time, under the same sparse conditions, the distortion rate is low, and the decompressed data can maintain the characteristics and value of the original data.

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Abstract

The invention discloses a power equipment sensing quantity compression and reconstruction method suitable for the Internet of Things and a related device, and belongs to the technical field of data compression and reconstruction, and the method comprises the steps: obtaining a sensing quantity vector; constructing a dictionary matrix based on the length of the sensing quantity vector, and compressing the sensing quantity vector based on the dictionary matrix to obtain a compressed vector; the dictionary matrix is composed of two basis matrixes with the correlation as small as possible; and performing data reconstruction based on the compression vector and the dictionary matrix to obtain reconstructed data. According to the invention, the sparsification of the compression vector is realized, so that the requirement on the transmission rate of the Internet of Things communication system is greatly reduced.
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