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Large-view-field foreign matter detection device and method

A foreign object detection and large field of view technology, applied in the field of rail transit safety, can solve the problems of foreign object invasion in tunnels, foreign objects on one side of the tunnel can only be photographed, and shooting and monitoring cannot be realized, achieving increased safety and simple structure , low cost effect

Pending Publication Date: 2021-11-19
BEIHANG UNIV
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Problems solved by technology

[0004] In the field of foreign object detection in subway tunnels, in order to avoid foreign object intrusion accidents in the tunnel caused by the accidental fall of the device when the detection device is installed on the top of the tunnel, the detection device is often installed on the side wall of the tunnel, and the device installed on the side wall can only photograph the tunnel The foreign matter on one side cannot be photographed and monitored well on the foreign matter on the installation side

Method used

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  • Large-view-field foreign matter detection device and method

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Embodiment Construction

[0045] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention but not to limit the scope of the present invention.

[0046] figure 1 It is a schematic diagram of the overall device of the present invention, combined with the attached figure 1 It can be seen that a foreign object detection device with a large field of view disclosed in the present invention includes a central processing unit 3, a data storage module 5, a communication module 4, a drive module 2, a power supply module 7, and is composed of a light source 6, a camera 9 and a mirror 8. imaging module.

[0047] The central processing unit 3 is respectively connected with the data storage module 5, the communication module 4, the drive module 2, the power supply module 7, and the imaging module, and controls the mutual cooperation o...

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Abstract

The invention discloses a large-view-field foreign matter detection device and a large-view-field foreign matter detection method. Scenes in front of and behind the device are captured at the same time by utilizing a hollow internally-polished reflector mounted in front of a camera, so that the view field range of the camera is expanded. According to the invention, the field of view is expanded by using a reflector through single shooting of a single camera, and the device is simple in structure, low in cost and wide in application prospect.

Description

technical field [0001] The invention relates to a large field of view foreign object detection device and method, which are suitable for various fields requiring large-scale detection such as subway tunnels, and belong to the technical field of rail transit safety. Background technique [0002] The field of view is one of the important parameters of the optical imaging system, which together with the resolution determines the amount of information that the optical imaging system can obtain. Limited by the principle of the optical imaging system, it is difficult for the optical imaging system to achieve an imaging range of more than 180°. In the fields of video surveillance, military industry, and biomedicine, the field of view of conventional imaging systems often cannot meet the application requirements, so it is necessary to pursue Imaging system with a wider field of view. [0003] Large-field-of-view imaging methods can be divided into two categories—scanning stitching ...

Claims

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Application Information

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IPC IPC(8): G01C11/04G01C11/02G06T3/00G06T3/40G06T7/194
CPCG01C11/04G01C11/02G06T7/194G06T3/4038G06T3/08
Inventor 屈玉福张恺
Owner BEIHANG UNIV
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