Debris flow early warning method, system, equipment, medium and product
By calculating the power spectrum entropy value and peak frequency of the surface infrasound signal, determining the precursor signal of the mudslide flow and outputting early warning signals, the problems of false alarms, missed reports and lag in the prior art are solved, and more accurate and early warnings of mudslide flow are achieved.
Patent Information
- Application Number
- CN202411824419.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-03-25
AI Technical Summary
Existing mudslide early warning technologies are susceptible to interference from other natural or man-made vibration sources, with the risk of false alarms or underreports, and it is difficult to provide early warnings.
By obtaining the current infrasound signal of the ground surface, calculate its power spectrum entropy value, and compare it with the early warning threshold. When the entropy value of the power spectrum is less than the threshold value, the peak frequency is calculated. If it is within the set frequency range, it is determined to be a precursor signal for the debris flow and an early warning signal is output.
This method can reduce the lag of mudslide early warning, enhance the accuracy of early warning, effectively distinguish mudslide signal from other types of vibration or noise sources, reduce false alarm rates, and provide earlier and reliable early warnings.