Lossy compression method, analysis method and compression analysis system for geophysical exploration data

By segmenting and sorting the geophysical detection monitoring data, the problem of directly discarding background field data in the prior art is solved, and efficient compression and effectiveness retention of background field data and effective signal data is achieved.

CN114629503BActive Publication Date: 2025-03-11ANHUI HUIZHOU GEOLOGY SECURITY INST
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202210319534.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-03-29
Publication Date
2025-03-11
Estimated Expiration
2042-03-29

AI Technical Summary

Technical Problem

When compressing physicism monitoring data, the background field data is directly discarded and the available information it contains is ignored, resulting in too large data volume and inconvenient storage and processing.

Method used

By segmenting a single-channel data stream, the background field data and valid signal data are distinguished, and they are sorted and compressed respectively. The specific method includes compressing the background field data in units of the same length time window, reducing the effective signal sampling frequency for compression, and retaining the representative value of the background field data for compression.

Benefits of technology

It realizes efficient compression of background field data and effective signal data, reduces storage space requirements, and retains available information in background field data, ensuring the effectiveness and representativeness of the signal.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN114629503B_ABST
    Figure CN114629503B_ABST
Patent Text Reader

Abstract

The lossy compression method, analysis method and compression analysis system of geophysical data include: segmenting the data stream of a single channel, distinguishing and sorting the background field data and the effective signal data; compressing the background field data with the starting value, ending value, minimum value and maximum value in the time window T of the same length as the compressed data group; reducing the original effective signal sampling frequency, taking the effective data as samples with the new sampling frequency corresponding to the time window, calculating the representative value as the compressed effective data, so as to compress the effective data; selecting the background analysis time period, making a K-line for the compressed background field data in each background field data sequence in the background analysis time period and combining the K-lines corresponding to all time windows T, so as to obtain the background trend analysis K-line chart in the background analysis time period, so as to intuitively analyze the fluctuation of the background field. The present invention reduces the space required for storage, ensures the effectiveness of the signal, compresses and retains the background field data, and grasps the trend of the background field data as a whole.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Compression method and device, expansion method and device, compression / expansion system, peak detection method, program, recording medium

    JP2002312000A

  • Image Compression

    US20200134835A1