A police window imaging detection system

Abstract

The invention discloses a police window imaging investigation system, which includes a host computer and a video display terminal, and is characterized in that the host computer includes an infrared laser with a laser beam expander, a camera combination lens with an infrared enhanced CCD, a digital processor DSP and Two single-chip microcomputers; the video display terminal includes a display and a controller. The infrared laser emits infrared rays of a specific wavelength after beam expansion and homogenization processing to irradiate the detection target. The DSP processes the collected video signal, and outputs it to the monitor of the video display terminal for real-time display through the first single-chip microcomputer through a video decoding chip. At the same time, the DSP sends three-way control commands through the second single-chip microcomputer, and adjusts The size of the light spot and the feedback control of the combination lens and the infrared enhanced CCD are adjusted to unify the optical axis; the output control signal of the controller of the video display terminal is connected to the second single-chip microcomputer.

Description

technical field [0001] The invention relates to a police reconnaissance device, in particular to a police reconnaissance system for performing photoelectric perspective imaging on the interior of glass in a closed room, dark glass, and various vehicle windows (including film sticking). Background technique [0002] Due to the urbanization process and the popularity of transportation, many criminal activities occur in closed rooms and traffic vehicles. Due to the dark interior environment and the vehicle glass film, the glass surface forms a mirror surface, which leads to strong chiaroscuro and reflections. and reflections, so that investigators cannot observe its interior through the glass window, because traditional methods (direct observation with human eyes, observation with telescopes, or observation with conventional photoelectric imaging equipment) cannot achieve imaging through the window through the glass. The detection work of a class of criminal activities brings d...

AI Technical Summary

Problems solved by technology

[0002] Due to the urbanization process and the popularity of transportation, many criminal activities occur in closed rooms and traffic vehicles. Due to the dark interior environment and the vehicle glass film, the glass surface forms a mirror surface, which leads to strong chiaroscuro and reflections. and reflections, so that investigators cannot observe its interior through the glass window, because traditional methods (direct observation with human eyes, observation with telescopes, or observation with conventional photoelectric imaging equipment) cannot achieve imaging through the window through the glass. The investigation of a class of criminal activities brings difficulties, so there is an urgent need for an investigation system that can realize the imaging function of glass through windows

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