Laser radar main module, laser radar and emitting light source installation method

Abstract

The invention relates to the technical field of artificial intelligence and particularly relates to a laser radar main module and a laser radar. The laser radar main module comprises a transmitting module, a receiving module, an optoelectronic circuit board, a main control board and a structural lens barrel. The transmitting module comprises a transmitting light source, a transmitting circuit anda transmitting lens, the receiving module comprises a receiving circuit, a photoelectric sensor and a receiving lens, the transmitting circuit, the receiving circuit and the photoelectric sensor are arranged on the photoelectric circuit board, the transmitting lens and the receiving lens are arranged in the structural lens barrel, and the structural lens barrel is connected to the main control board and the photoelectric circuit board. According to the invention, by directly setting the transmitting light source, the transmitting lens and the receiving lens in the structural lens barrel, the problems of low one-time success rate and low production efficiency of products in a traditional installation process are solved, at the same time, the measurement precision and stability of the products are improved at the same time, the difficulty of assembly is reduced, and the mass production of the products is facilitated.

Description

technical field [0001] The present application relates to the technical field of artificial intelligence, in particular to a laser radar main module and a laser radar. Background technique [0002] Lidar is an active distance detection device that uses LED or laser as the emission light source and uses photoelectric detection technology. Lidar mainly includes a transmitting system, a receiving system, and a main control system. The transmitting system includes various forms of lasers or LEDs, and transmitting lenses; the receiving system includes receiving lenses, various forms of photodetectors, photoelectric chips, etc.; the main control system includes the main control board, which is used to control the work of each system and process information. Get the measurement results. [0003] LiDAR emits a beam of specified wavelength through LED or laser, and irradiates the target after being adjusted by the transmitting lens. The beam reflected by the target is adjusted by t...

AI Technical Summary

Problems solved by technology

However, the emitting light source LED / LD and the photoelectric sensor are welded on the photoelectric PCB, the emitting and receiving lenses are fixed on the structure, and then the PCB and the structure are assembled to complete the fixing of the optical system; this installation method has many problems in the process. Level assembly tolerance, it takes a lot of time to adjust the optical axis in the debugging process to ensure the alignment of the optical path, the product has a low first-time success rate, and the production efficiency is low

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