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Unmanned aerial vehicle sound identification management and control method based on wireless ultraviolet light networking

An unmanned aerial vehicle and ultraviolet light technology, applied in the field of unmanned aerial vehicle identification, can solve problems such as difficult to identify small aircraft, and achieve the effect of strong confidentiality, solving limited detection and solving interference.

Pending Publication Date: 2022-05-27
XIAN UNIV OF TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a UAV sound recognition management and control method based on wireless ultraviolet light networking, which solves the problem that the identification method in the prior art is difficult to identify small aircraft

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  • Unmanned aerial vehicle sound identification management and control method based on wireless ultraviolet light networking
  • Unmanned aerial vehicle sound identification management and control method based on wireless ultraviolet light networking
  • Unmanned aerial vehicle sound identification management and control method based on wireless ultraviolet light networking

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Embodiment Construction

[0042] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] The sound recognition control method for drones based on wireless UV light networking includes the following steps:

[0044] Step 1. Use the acoustic acquisition array network to collect the noise signal of the drone, and preprocess the noise signal of the drone; the noise signal of the drone is the audio of hovering, take-off and flying at three distances. The data length ranges from 30 to 50s. The three distances are: close-range samples, with a sampling distance ranging from 20 to 30m; half-distance samples, which are collected according to half of the actual response distance of the microphone; and 2 / 3-distance samples.

[0045] The acoustic acquisition array network includes a single microphone array, an ultraviolet light communication module and a processing unit, such as figure 1 As shown in the figure, a large-area coverage net...

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Abstract

The invention discloses an unmanned aerial vehicle sound identification management and control method based on wireless ultraviolet light networking, and the method comprises the steps: collecting an unmanned aerial vehicle noise signal, and carrying out the preprocessing of the unmanned aerial vehicle noise signal; performing feature extraction on the processed unmanned aerial vehicle noise signal by adopting MFCC to obtain audio features, and establishing a voiceprint library; collecting a target noise signal in real time, and performing noise elimination on the target noise signal to obtain a sound source signal; performing time-frequency domain analysis on the sound source signal by using short-time Fourier transform, performing feature extraction by using MFCC, and matching the extracted features with audio features in a voiceprint library; and if it is determined that the target noise signal is the black flight unmanned aerial vehicle, real-time sound source positioning control is performed on the unmanned aerial vehicle. The method can effectively solve the problem of radio interference, can also solve the problem of limited detection of optical equipment, has the advantage of high confidentiality, and can accurately identify small aircrafts.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle identification methods, and relates to an unmanned aerial vehicle sound identification management and control method based on wireless ultraviolet light networking. Background technique [0002] Due to the structural characteristics of low-altitude aircraft and the characteristics of low-altitude flight, it is difficult for radar to identify targets. Image and video recognition methods are also limited by visibility, light and environmental influences, especially for small aircraft, which are difficult to capture at long distances. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide an unmanned aerial vehicle sound identification management and control method based on wireless ultraviolet light networking, which solves the problem that the identification method existing in the prior art is difficult to identify small aircraft. [0004] The tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/03G10L25/24G10L25/30G10L25/51G10L21/028G10L21/0216G10L19/02
CPCG10L25/03G10L25/24G10L21/0216G10L21/028G10L25/51G10L19/0216G10L25/30G10L2021/02166Y02D30/70
Inventor 赵太飞张健伟孙玉歆张爽牛洁陈郁琪
Owner XIAN UNIV OF TECH
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