Intelligent Driving | Key Parameters and Design Points of LiDAR

In the field of high-speed autonomous driving, L3-level systems require accurate and reliable sensors to ensure safe and efficient operation on highways. As one of the key sensors, the performance of LiDAR directly affects the vehicle's environmental perception capabilities.

● Safety is the primary consideration in LiDAR design, especially in highway driving environments. It must be able to accurately detect moving objects, obstacles that cannot be crossed, and obstacles that cannot be lowered. The detection requirements determine the resolution, detection range, and frame rate of LiDAR. For high-speed vehicles, high resolution and long-distance detection capabilities are particularly important, especially in the center of the field of view.

● The field of view (FOV) and region of interest (ROI) of the LiDAR are key parameters in the design. The central field of view has higher requirements because it is the main detection area in the direction of the vehicle's advance. By dynamically adjusting the laser energy to focus on the region of interest, the detection range and resolution of a specific area can be improved. This design ensures higher detection performance where it is needed, thereby improving driving safety.

The installation location of the LiDAR is also very important. Common installation locations include the front grille, roof, behind the windshield, and near the headlights. Each location has its own unique advantages and disadvantages, affecting factors such as the LiDAR's field of view, size, environmental adaptability, and cleaning system design.

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