A system for monitoring, positioning and early warning of debris flow based on infrasound wave

By deploying infrasound sensor arrays in debris flow-prone areas and combining signal processing and positioning algorithms, the real-time and accuracy issues of debris flow monitoring in complex environments have been solved, enabling automated early warning and accurate positioning. This system is suitable for debris flow monitoring in remote mountainous areas.

CN120428166BActive Publication Date: 2026-06-26中铁科学研究院集团有限公司 +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中铁科学研究院集团有限公司
Filing Date
2025-05-13
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies for debris flow monitoring are slow and have low accuracy in complex terrain and special environments. They are also difficult to collect and analyze infrasound signals in real time and accurately, which makes debris flow monitoring difficult and unable to provide effective early warning.

Method used

In areas prone to debris flows, an array of infrasound sensors is deployed. Synchronization is ensured through GPS timing. Signal processing is performed using a Chebyshev Type II filter, dB3 wavelet basis noise reduction, Fourier transform, and ResNet50+SVM model. The location of debris flows is calculated using an infrasound signal energy attenuation model and a time difference of arrival algorithm, which automatically triggers early warnings.

Benefits of technology

It enables real-time and accurate debris flow monitoring and location in complex mountainous areas. The system operates fully automatically without manual intervention, making it suitable for applications in remote areas. The positioning error is within an acceptable range, and the detection and alarm effects are good.

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Abstract

The application discloses a kind of mud-rock flow monitoring positioning early warning systems based on infrasound wave, comprising the following steps: step S1: for the mud-rock flow prone area of complex mountainous area in construction period, infrasound sensor array is laid out;Step S2: by real-time acquisition infrasound signal, by 4G or Beidou wireless communication technology data transmission to data processing center;Step S3: the infrasound signal of acquisition is carried out data processing and analysis identification;Step S4: based on comprehensive consideration infrasound signal energy attenuation model and sound reach time difference (TDOA) algorithm, the energy attenuation data of multiple sensors received to infrasound signal and time difference calculate the position of mud-rock flow infrasound wave source;Step S5: system according to monitoring result and set threshold, automatically trigger early warning mechanism, to public warning;Step S6: by visual monitoring platform, real-time display mud-rock flow infrasound signal waveform, mud-rock flow position and early warning state.
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