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Target detection-based whistling snapshot device field calibration system and method

A technology of target detection and on-site calibration, which is applied in the direction of TV, instrument, character and pattern recognition, etc., can solve the problems of measuring the technical indicators and accuracy of the whistle capture device, and there is no unified measurement method and calibration device, so as to facilitate the on-site calibration work Effect

Inactive Publication Date: 2021-11-30
CHINA JILIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

After a large number of investigations, it is known that there is no unified measurement method and calibration device at home and abroad to measure the technical indicators and accuracy of the whistle capture device

Method used

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  • Target detection-based whistling snapshot device field calibration system and method
  • Target detection-based whistling snapshot device field calibration system and method
  • Target detection-based whistling snapshot device field calibration system and method

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Embodiment Construction

[0015] The calibration method of the present invention will be further described below in conjunction with the specific embodiments of the present invention and the accompanying drawings, so that the beneficial effects of the present invention will be further clarified.

[0016] Such as figure 1 The system device for on-site calibration of the whistle capture device shown mainly includes whistle capture device 1-1, standard sound source 1-2, guide rail 1-3, smart car 1-4, signal generating device 1-5, and timing display screen 1 -6 and computer 1-7. The whistle capture device 1-1 is installed on a support pole with a height of 6m outdoors; the standard sound source 1-2 is used to trigger the whistle capture device 1-1 to work. When calibrating the positioning error and the time difference of the sound and light images, only one standard is needed Sound source, two standard sound sources are required when calibrating the resolution; guide rail 1-3 is used to fix the standard s...

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Abstract

The invention relates to a target detection-based whistling snapshot device field calibration system and method. The calibration system comprises a whistling snapshot device, a standard sound source, an intelligent trolley, a guide rail, a timing display screen, a signal generation device and a computer. The automobile whistling snapshot device is installed on an outdoor road. A guide rail is arranged on the intelligent trolley, and one standard sound source can be fixed or the distance between the two standard sound sources can be adjusted; the signal generating device is used for driving the sound source and controlling the timing display screen to start working; and the time on the timing display screen in the captured sound phase cloud picture is the sound-light image time difference of the whistling capturing device. Through the system and the method, the field positioning error, the acousto-optic image time difference and the resolution index of the motor vehicle whistling snapshot device can be objectively calibrated.

Description

technical field [0001] The present invention relates to the field of deep learning and acoustic measurement, in particular to an on-site calibration system and method for a whistle capture device based on target detection Background technique [0002] With the rapid development of urban economy, the number of motor vehicles has increased rapidly, and the noise pollution has become increasingly serious, in which the noise of motor vehicle whistles occupies the main part. Article 62 of the "Regulations on the Implementation of Road Traffic Safety of the People's Republic of China" stipulates: Driving a motor vehicle must not honk in areas or road sections where honking is prohibited. [0003] Traffic police departments used to adopt patrols and other methods to supervise, but manual law enforcement is inefficient and unreliable. Therefore, major cities are now introducing whistle capture devices to automatically detect illegal whistle phenomena. This device is a technology fo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00G06K9/00G06N20/00
CPCH04N17/002G06N20/00
Inventor 周云郑慧峰姚润广
Owner CHINA JILIANG UNIV