Brightness detector

Abstract

The invention discloses a brightness detector, and the detector specifically comprises: a box body assembly which is provided with a cavity box body, wherein a box body upper cover disposed above the box body assembly; an acquisition module which is provided with a detection isolation glass sheet and a camera mounting rack arranged in the box body general assembly, wherein a detection camera, a photoelectric integrated vehicle test camera adopting a computer technology and a digital image processing technology, and a CCD imaging camera are mounted above the camera mounting rack; and a central control mainboard which is provided with a central control PCB, a central control processor and positioning frames arranged on the two sides of the central control mainboard. According to the brightness detector, the effects of guaranteeing driving safety and saving electricity are achieved, a heater is arranged in the detector, window condensation is effectively prevented, emergency heat dissipation of the device body can be achieved, and elements of the device are effectively protected.

Description

technical field [0001] The technical field of tunnel detection of the present invention is specifically a brightness detector. Background technique [0002] The traffic safety standards of international highways require continuous measurement of the illuminance level at the entrance of the tunnel, and automatic adjustment of lighting facilities according to changes in external ambient light. This advice is important to eliminate the disastrous "black hole" effect that drivers experience when entering poorly lit tunnels. The brightness detector is mainly installed about 100 meters outside the tunnel entrance. It is an online monitoring instrument for professionally monitoring the brightness of the environment outside the tunnel. In highways, A-level and B-level tunnels of first-class highway tunnels, automatic control is used to illuminate to eliminate the "black hole" effect, so as to ensure driving safety. The automatic control method adopts the method of detecting the br...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a brightness detector, which solves the problems that the large temperature difference will lead to fogging of the lens and cannot be accurately detected, and there is no way to deal with abnormal heating caused by circuit failure or environmental reasons.

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