Large view field array detection radar based on light flight time

Abstract

The invention discloses a large view field array detection radar based on light flight time. The radar comprises an illumination module, a sensing module and a control module; the control module is separately connected with the illumination module and the sensing module; the illumination module transmits light rays outwards according to a preset radiation angle; the sensing module receives a reflective light ray signal according to a preset detection angle; the sensing module inputs the reflection light ray signal to the control module; and the control module is used for controlling the driveof the illumination module and the sensing module, and processing the reflection light ray signal. According to the radar provided by the invention, the different space ranges are radiated by a radiation light source, the radiation angles of the light sources are mutually remedied, and uniform illumination is achieved; multiple light flight time sensing chips are connected in series, and multipledepth sensing chips are used for simultaneously sensing scenes, so that the sensing speed of the large view field array detection radar is significantly higher than that of the scanning type laser radar, and the vibration sensitivity and waste of scanning time of the mechanical scanning type detection are avoided; the problems of limitations on the detection angle of the single-sensor system lensand on the multi-line laser radar detection speed are solved.

Description

technical field [0001] The invention relates to the technical field of area array detection radar, in particular to a large field of view area array detection radar based on a plurality of optical time-of-flight depth sensing chips. Background technique [0002] In recent years, lidar has been more and more used in the fields of atmospheric wind field monitoring, 3D visual imaging, imaging guidance and target tracking. Because lidar has the advantages of high precision and high resolution, after the emergence of unmanned driving technology, it directly drives a group of companies to carry out various lidar research and development and production. However, at present, the cost of LiDAR technology is generally high, and the feedback frame rate is low, so some applications are still in the laboratory stage. Since the operating speed and the scene are different from those of outdoor unmanned vehicles, indoor mobile robots usually require lidar with a higher frame rate and a sho...

AI Technical Summary

Problems solved by technology

The TOF camera uses the most direct measurement method for depth imaging, obtains better depth information with the smallest computing resources, and realizes the construction of depth scenes at a higher frame rate. However, due to the limited field of view and the gap between multiple cameras, TOF depth cameras Mutual interference cannot replace lidar

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