An optical cable depth detection system

By combining phase-sensitive optical time-domain reflectometry equipment and vibration acquisition equipment with a background processing module, the problems of low efficiency and high cost of the optical cable depth detection system have been solved. Rapid and accurate measurement of the optical cable depth has been achieved, adapting to changing environments and reducing operating costs.

CN119471785BActive Publication Date: 2025-10-17QUALSEN (GUANGZHOU) TECH CO LTD
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Patent Information

Application Number
CN202411815820.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-10-17
Estimated Expiration
2044-12-11

AI Technical Summary

Technical Problem

The existing optical cable burial depth detection system has the problems of low efficiency, high cost, complex data processing and difficulty in adapting to changing detection environments, and is unable to achieve simple, fast and accurate measurement of the optical cable burial depth.

Method used

A phase-sensitive optical time-domain reflectometer and a vibration collection device are used in conjunction with a background processing module. By applying detection vibration directly above the optical cable route, vibration data is collected and uploaded. The data is then aligned and processed in the background processing module to obtain the cable burial depth.

Benefits of technology

It achieves simple, fast and accurate measurement of the buried depth of optical cables, reduces operating costs, improves detection efficiency, adapts to different environmental conditions, and complies with industry safety standards.

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Abstract

The application relates to the technical field of optical fiber sensing, and more particularly to an optical cable burying depth detection system. The system comprises a phase-sensitive optical time domain reflection device, which is connected to an optical cable to be detected, is used to collect first vibration data according to a collection instruction, adds time information in the first vibration data and uploads the first vibration data to a background processing module; a vibration collection device is used to collect second vibration data according to a collection instruction, adds time information in the second vibration data and uploads the second vibration data to the background processing module; the background processing module is used to generate a collection instruction and send the collection instruction to the phase-sensitive optical time domain reflection device and the vibration collection device respectively; and the background processing module is also used to receive the first vibration data and the second vibration data, align the first vibration data and the second vibration data according to the time information and obtain the burying depth of the optical cable to be detected according to the aligned first vibration data and second vibration data. The system can realize simple, fast and accurate measurement of the burying depth of the optical cable.
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