工程师来信｜“我也一度认为激光雷达只是情绪价值”

Group 1 - Tesla has officially launched its first Robotaxi fleet in Austin, Texas, consisting of the 2025 Model Y, utilizing a pure vision solution without lidar or millimeter-wave radar [1] - The success of Tesla's vision-based approach contrasts with the continued popularity of lidar in the Chinese market, where 90% of the global lidar sales occurred [1][2] - Industry experts debate whether lidar is merely an emotional value or a necessary safety feature that supports vision-based systems [1] Group 2 - Lidar is considered a more reliable and cost-effective solution compared to vision systems, with current industry standards achieving effective detection up to 150 meters [2] - The cost of lidar continues to decrease, with expectations for higher performance at lower prices due to advancements in manufacturing [2][9] - The integration of lidar enhances the performance of advanced driver-assistance systems (ADAS), particularly in complex scenarios [3][12] Group 3 - Vision systems face limitations in low-light conditions and complex environments, leading to potential failures in object detection [4][5] - The effectiveness of lidar in detecting objects is influenced by the number of laser beams and angular resolution, which are critical for accurate distance measurement [6][15] - The future of lidar technology is expected to shift towards SPAD (Single-Photon Avalanche Diode) technology, which offers improved sensitivity in challenging conditions [8] Group 4 - The cost of lidar has dropped to around 1000 yuan, making it a competitive option for automotive manufacturers [9] - The industry acknowledges that lidar can significantly improve the performance of AEB (Automatic Emergency Braking) systems, especially in diverse scenarios [12] - The ongoing debate between vision and lidar technologies suggests that both will continue to evolve, with lidar potentially becoming more commonplace in the automotive sector [13][14]