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With the increasing application of photoelectric technology in the new generation of intelligent vehicles, the laser market is expected to catch the "express train" of the development of intelligent vehicles. The application of lidar can reduce the use of mechanical moving parts, thus greatly improving the reliability of the system and the stability of the vehicle.
Upstream component manufacturers can provide laser components for ADAS, DMS and AR HUD. Therefore, the upstream of the laser industry chain enterprise crossover to the automotive application opportunities are relatively more.
Photoelectric technology plays a crucial role in the new generation of smart cars. Automotive laser radar based on laser and optical technology is being gradually applied to the field of auxiliary driving and unmanned driving technology. The intelligent cockpit driver monitoring system based on near-infrared laser light source will gradually replace the traditional LED light source, and provide richer and more accurate information of cockpit driver behavior for the AI early warning system to make more accurate judgments. In addition, a laser-displayed augmented reality heads-up display system (AR HUD) projects driver assistance and navigation information on the front windshield in real time.
In the vehicle intelligent driving system, lidar has become an indispensable part of the scene detection and sensing sensor group due to its unique three-dimensional imaging capability.LiDAR is a radar system that transmits laser beam to detect the target's position, velocity and other characteristic quantities. Its working principle is to transmit detection signal (laser beam) to the target, and then the received signal reflected back from the target and the transmitted signal are compared, after appropriate processing, the display can obtain the target information, such as the target distance, azimuth, height, speed, attitude, and even the shape of parameters.
Lidar fusion high-precision map scheme can effectively make up for the defects of visual scheme such as high environmental dependence, large computing power demand and short detection range, and its performance advantage is very suitable for the demand of OEMs in pursuit of advanced autonomous driving. At present, the wavelengths of lidar suitable for intelligent driving of vehicles can be selected as 808nm, 850nm, 905nm, 940nm and 1064nm.
The popularity of the smart car market undoubtedly provides an opportunity for rapid development of the laser market. Experts say that lidar, the eye of autonomous driving, is currently on the eve of a rapid increase in the industry penetration rate and is expected to see accelerated development in 2021. It is suggested to focus on the enterprises with advanced product verification and technology development iteration.
