Non-contact laser explosive rapid detection system and method
A non-contact detection system technology, applied in the field of explosives detection, can solve the problems of inconvenient work for relevant departments and cost a lot of manpower and material resources, and achieve the effect of improving environmental adaptability, improving accuracy, and high accuracy
Pending Publication Date: 2021-01-29
INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
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[0002] The traditional detection of explosives is mostly carried out manually, which makes the relevant departments spend a lot of manpower and material resources, and the criminal suspects will avoid the inspection of the inspectors, which brings inconvenience to the work of the relevant departments
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[0028] refer to figure 1 , The present invention proposes a non-contact laser explosive rapid detection system, including: a laser module, an auxiliary optical module, a thermal imaging module, an explosive identification module, an alarm display module and a management control module.
[0029] The laser module is a dual-wavelength laser with single-frequency output. It is used to generate laser with predetermined power and predetermined wavelength. The beam is required to be uniform, stable and reliable. The laser wavelength can be selected as 10.6μm and 9.3μm.
[0030] The auxiliary optical module mainly includes optical path components and beam expanders; the optical path components are used to control the angle and area of laser irradiation; the beam expander is used to expand the laser light into a surface light source, and the beam expander is a lens made of calcium fluoride material. The material has a high transmittance for the 8-14μm wave band and a small refractive...
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The invention provides a non-contact laser explosive rapid detection system, which comprises a laser module used for generating laser with predetermined power and predetermined wavelength, an auxiliary optical module used for controlling the irradiation angle and area of the laser generated by the laser module and expanding the laser into an area light source, a thermal imaging module used for collecting a thermal imaging signal of a target object in an area irradiated by the area light source, an explosive identification module used for acquiring the thermal imaging signal acquired by the thermal imaging module and judging whether the target object is an explosive or not according to the thermal imaging signal, and if so, judging the type of the explosive to which the target object belongs and outputting a judgment result, and an alarm display module used for acquiring the judgment result of the explosive identification module, displaying the judgment result and giving an alarm. According to the invention, non-contact detection of different types of explosives is realized by using laser and infrared thermal imaging technologies; dual-wavelength laser is used for irradiation, and dual-waveband infrared thermal imaging is used for detection, so that the adaptability to different types of explosives is enhanced.
Description
technical field [0001] The invention relates to the technical field of explosive detection, in particular to a non-contact laser rapid detection system and method for explosives. Background technique [0002] The traditional detection of explosives is mostly carried out manually, which makes the relevant departments spend a lot of manpower and material resources, and the criminal suspects will avoid the inspection of the inspectors, which brings inconvenience to the work of the relevant departments. Therefore, how to carry out unmanned automatic detection in outdoor public places to ensure the coverage and safety and stability of the detection area has become an urgent technical problem to be solved. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a non-contact laser explosive rapid detection system and method. [0004] A non-contact laser explosive rapid detection system proposed by ...
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IPC IPC(8): G01V8/10
CPCG01V8/10
Inventor余岑李东风潘攀韦峰
OwnerINST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA