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Vehicle whistling snapshot device and method based on regular tetrahedron microphone array

A technology of microphone array and regular tetrahedron, which is applied in the direction of measuring devices, road vehicle traffic control systems, instruments, etc., can solve the problems of large vehicle positioning errors, redundant information, and poor real-time performance, and achieve positioning accuracy and function Large area, good real-time capture effect

Active Publication Date: 2020-01-14
CHINA ELECTRONIS TECH INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods need to form a sound intensity distribution map, which has a lot of information redundancy, a large amount of calculation, poor real-time performance, and large positioning errors for high-speed vehicles.

Method used

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  • Vehicle whistling snapshot device and method based on regular tetrahedron microphone array
  • Vehicle whistling snapshot device and method based on regular tetrahedron microphone array
  • Vehicle whistling snapshot device and method based on regular tetrahedron microphone array

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Embodiment Construction

[0027] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0028] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0029] In the first aspect, the present disclosure provides a vehicle whistle capture device based on a regul...

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Abstract

The disclosure discloses a vehicle whistling snapshot device and method based on a regular tetrahedron microphone array. The device comprises a regular tetrahedron microphone array and an industrial control computer. The regular tetrahedron microphone array is installed on a road monitoring rod; four microphones are arranged in the regular tetrahedron microphone array and are used for collecting road surface sound signals on road and transmitting the collected road surface sound signals to the industrial control computer. The industrial control computer is used for processing the road surfacesound signals to obtain a sound source position of a whistling signal, triggering the snapshot function of a monitoring camera after obtaining of the sound source position of the whistling signal, carrying out snapshot processing on a license plate at the sound source position, carrying out license plate number identification on the snapshot license plate image, shooting an image of the whistlingvehicle at the whistling moment, recording sounds of sounds signals within a time range before and after the whistling moment, and uploading the identified license plate number, the shot image of thewhistling vehicle at the whistling moment, and recorded sounds to a traffic police law enforcement server. And the e traffic police law enforcement server sends monitoring information to a traffic police terminal.

Description

technical field [0001] The present disclosure relates to the technical field of vehicle capture, and in particular to a vehicle whistle capture device and method based on a regular tetrahedral microphone array. Background technique [0002] The statements in this section merely mention background art related to the present disclosure and do not necessarily constitute prior art. [0003] At present, the vehicle whistle capture technology is based on the principle of sound imaging. By constructing microphone arrays with different structures such as inline, cross, circular, and spiral shapes, the sound distribution map of the environmental sound is formed, and the sound of the vehicle whistle is analyzed. The location of the sound source. Using these planar microphone arrays, the sound distribution information is rich, and the information redundancy for car whistle capture is large, the amount of data processing is large, and the capture area is small; and the more the number ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/017G01S5/22
CPCG01S5/22G08G1/0175
Inventor 陈庆磊李龙薛沛祥彭子健曹光磊王锡昌
Owner CHINA ELECTRONIS TECH INSTR CO LTD
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