Xiaomi Lidar: How Does the AT128 Achieve 360° Dead-Angle-Free Perception?

　　Xiaomi Lidar: How Does the AT128 Model Achieve 360° Dead-Angle-Free Perception? The AT128 lidar equipped on the Xiaomi SU7 employs multi-dimensional technology integration to build a comprehensive perception system covering all scenarios, collectively achieving “dead-angle-free” environmental awareness.

　　The AT128’s hardware design overcomes the physical limitations of traditional lidars. It integrates multiple independent laser transmission channels and high-sensitivity reception arrays, forming a one-to-one “transmit-receive” matching structure. This eliminates signal interference caused by channel multiplexing, ensuring each laser beam operates independently. Consequently, it achieves high-density point cloud coverage in the vertical direction.

　　The optical system employs a coaxial design, integrating transmission and reception optical paths within a compact space. This not only reduces the radar’s physical size but also eliminates detection blind spots through precise optical path calibration. These hardware-level optimizations provide the fundamental physical foundation for 360° perception.

　　Traditional mechanical rotating radars rely on a single rotating transmitter for scanning, which imposes scanning interval and speed limitations, making it prone to missing fast-moving objects. The AT128 employs non-repeating scanning technology, dynamically adjusting laser emission angles to achieve uniform point cloud distribution in both horizontal and vertical directions while maintaining a fixed frame rate.

　　Multimodal data fusion further enhances perception redundancy. The AT128 operates not in isolation but in synergy with complementary sensors like cameras and millimeter-wave radars. In scenarios with direct glare or backlighting, cameras may lose detail due to overexposure or underexposure. However, leveraging its active laser emission capability, the LiDAR can still clearly discern object contours.

　　Xiaomi Lidar: How Does the AT128 Achieve 360° Dead-Angle-Free Perception? The AT128’s dead-angle-free perception stems from triple innovations in hardware, scanning, and algorithms. High-density point clouds and real-time data updates achieve the goal of “seeing clearly and accurately.”