High-safety scanning detection device of photoelectric remote sensing equipment

Abstract

The invention discloses a high-safety scanning detection device of photoelectric remote sensing equipment. The high-safety scanning detection device includes: a laser, which is used for emitting laser light; a scanning part, which enables a light-emitting port to be moved in any direction and at any angle; a distance measuring instrument, which is used for measuring the distance between the laser and a barrier which is located on a path with the same axis as the light beam emitted from the laser; a surrounding object sensing system, which can sense approaching of a surrounding object and determine the approaching speed and distance of object approaching and the temperature of the object; and a system safety control platform, which can analyze and calculate data obtained by the distance measuring instrument before the laser emits the light so as to control a light emitting angle and the magnitude of light emitting energy. The high-safety scanning detection device guarantees safety when photoelectric remote sensing equipment emits light in any direction, thereby protecting people on a light emitting path and also protecting the equipment itself. Advanced photoelectric remote sensing equipment can be popularized and applied in various fields, especially in cities with many buildings, and horizontal scanning can be well conducted.

Description

technical field [0001] The invention relates to the field of optics, in particular to a scanning detection device for high-safety photoelectric remote sensing equipment. Background technique [0002] With the advancement and development of science and technology, photoelectric remote sensing detection equipment has begun to be widely used in the detection of air pollution gases, atmospheric particles, distance, temperature and other parameters, such as meter scattering lidar, Raman lidar, wind lidar, water vapor lidar , laser rangefinder, etc. These photoelectric remote sensing detection equipment actively emit laser beams of specific bands, and when they encounter air pollution gases and atmospheric particles, they scatter or excite backscattered light in other bands, and the photoelectric remote sensing detection equipment receives backscattered light After analysis and calculation, useful information such as extinction coefficient, wind information, temperature and humidi...

AI Technical Summary

Problems solved by technology

[0003] Taking the field of environmental protection as an example, due to serious pollution in recent years, lasers with low single-pulse energy cannot penetrate the boundary layer, so it is impossible to obtain data at a higher distance. In order to achieve better detection, the laser single-pulse energy is basically greater than 10uJ , or even more than 100mJ, if it is vertical detection, it is still safe, but in order to trace the source, it is now starting to conduct directional detection or continuous scanning detection in any direction in the city. Once it hits the human eye, it will cause irreparable damage to the human eye. damage, there is a great potential safety hazard, which is not conducive to the analysis of the generation and dissipation of pollution clusters in cities by this type of photoelectric remote sensing detection equipment, which greatly hinders its application and promotion

[0004] Therefore, when the photoelectric remote sensing detection equipment conducts directional detection or continuous scanning detection in any direction in the city, there are the following problems: to the human eye, causing irreparable damage to the human eye

The outgoing light of the photoelectric remote sensing detection equipment may hit the short-distance obstacles, and the strong backscattered light will be received by the receiving system of the photoelectric remote sensing detection equipment, which will damage the photoelectric detector, lens and other equipment body components, causing damage to the equipment itself , reducing the operating safety of the equipment

If large-angle directional detection or cone scanning detection is carried out in order to avoid possible personnel or buildings, such detection is not very meaningful for the analysis of pollution distribution near the ground due to the transmission and diffusion of pollutants.

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