Detector detection method and system

Abstract

The invention relates to a detector detection method and system. According to the detector detection method, a preset emergent light signal is emitted to a preset target after to-be-detected detectorsare fixed. The to-be-detected detectors receive a reflected light signal obtained after the preset emergent light signal is reflected by the preset target, and converts the reflected light signal into reflected electric signals. Finally, the to-be-detected detectors are grouped according to the amplitudes of the reflected electric signals. According to the detector detection method, the to-be-detected detectors are fixed, and the same preset emergent light signal and the same preset target are selected to ensure that only the performances of the to-be-detected detectors are different in the grouping process of the detectors, so that the performances of the to-be-detected detectors are screened. According to the detector detection method, the detectors can be distinguished in the incominglink before laser radar production, the to-be-detected detectors with similar performance are screened out and installed, the difference between laser radar channels can be avoided, the performance ofthe laser radar is guaranteed, and the yield of the laser radar in the production stage is increased.

Description

technical field [0001] The present application relates to the technical field of detector detection, in particular to a detector detection method and system. Background technique [0002] Lidar is mainly composed of a transmitting system, a receiving system and a signal processing system. In order to adapt to the goal of low-cost products, lasers with more mature technology are usually selected as the light source of lidar, such as semiconductor lasers. However, the limitation of energy consumption of semiconductor laser light sources puts higher demands on the sensitivity of lidar detectors. [0003] In lidar, the detector needs to detect extremely weak reflected light signals, which belongs to the category of low-light detection, and has high requirements for the consistency of detector performance. However, under actual production conditions, there are unavoidable differences in the performance of detectors of the same batch. The difference in detectors will directly l...

AI Technical Summary

Problems solved by technology

[0004]Based on this, it is necessary to provide a detector detection method and system for the problem of detector differences

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