Adaptive ultrasonic bird control method based on millimeter wave radar micro-motion feature perception

By using millimeter-wave radar micro-motion feature sensing technology to dynamically adjust ultrasonic bird deterrence parameters, the problem of environmental interference and adaptability of sound bird deterrence technology is solved, enabling reliable bird identification and effective bird deterrence in all weather conditions.

CN122250445APending Publication Date: 2026-06-23CHINA SOUTHERN POWER GRID EXTRA HIGH VOLTAGE POWER TRANSMISSION CO LIUZHOU BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA SOUTHERN POWER GRID EXTRA HIGH VOLTAGE POWER TRANSMISSION CO LIUZHOU BRANCH
Filing Date
2026-04-03
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing sound bird deterrence technology is susceptible to environmental interference, cannot reliably identify birds around the clock, and fixed bird deterrence parameters lead to a rapid decline in bird adaptability, making it difficult to dynamically adjust according to bird species and behavioral status.

Method used

Millimeter-wave radar is used to sense micro-motion characteristics. By emitting electromagnetic waves and receiving echoes, point cloud data and micro-Doppler time-frequency maps are extracted to analyze the bird's wingbeat frequency and movement trajectory. Ultrasonic bird deterrence parameters are dynamically generated, and a phased array ultrasonic generator array is used for directional bird deterrence.

Benefits of technology

It achieves reliable bird target perception without blind spots in all weather conditions, dynamically adjusts bird deterrence strategies, enhances deterrence effectiveness and adaptability, and overcomes the shortcomings of traditional optical sensors that are susceptible to environmental interference.

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Abstract

The application provides an adaptive ultrasonic bird repelling control method based on millimeter wave radar micro-motion feature sensing, relates to the technical field of bird damage prevention of power transmission and transformation equipment, and emits electromagnetic waves to a protection area through a millimeter wave radar and receives echoes, extracts point cloud data and micro-Doppler time-frequency diagrams of moving targets from the echoes, analyzes the wing beating frequency of the targets based on the micro-Doppler time-frequency diagrams, and calculates the motion trajectory and motion parameters of the targets based on the point cloud data. The application utilizes the physical characteristics that radar waves can penetrate rain and fog and are not affected by light, realizes reliable sensing of bird targets in all-weather and non-blind areas, matches and determines the bird species in a preset bird feature library based on the wing beating frequency, dynamically generates ultrasonic bird repelling parameters containing a basic frequency and a pulse modulation mode according to the bird species and behavior state, adjusts the bird repelling strategy in real time according to the target features, and solves the problem that birds are easy to adapt in a fixed parameter mode.
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