Working principle of BYD intelligent forward AGV laser SLAM navigation

In warehousing logistics and industrial handling scenarios, intelligent forward AGVs have become important equipment for improving logistics efficiency with their flexible and efficient operation capabilities. Among them, laser SLAM navigation technology is the core to support its autonomous operation. The following is a detailed analysis of the working principle of this technology.

Core Perception Fundamentals of Laser SLAM Navigation

Environmental Information Collection of Lidar

The core hardware of laser SLAM navigation is lidar, which continuously emits laser beams to the surrounding environment, and calculates the distance and orientation of the AGV and surrounding obstacles by receiving the reflected laser signals. This data will be transmitted to the AGV's control system in real time, providing the original basis for subsequent positioning and navigation. Lidar has a wide scanning range and high accuracy, and can stably capture environmental characteristics in complex environments to ensure the AGV's accurate perception of surrounding conditions.

Simultaneous localization and mapping (SLAM core link)

Real-time localization is synchronized with mapping

SLAM refers to simultaneous positioning and mapping, which is the core of laser SLAM navigation. During the movement of the AGV, the control system will combine the environmental data collected by the lidar to complete two tasks at the same time: one is to determine the real-time position of the AGV itself in the environment, and the other is to draw a high-precision map of the surrounding environment. By comparing the environmental feature points collected at different times, the control system can calculate the movement trajectory of the AGV, continuously correct its own position, and supplement and improve the map details, and finally build an environmental map that can be used by the AGV for autonomous navigation.

Map-based Autonomous Navigation and Path Planning

Path planning and real-time adjustment

After the construction of the environmental map is completed, the AGV's control system will plan the optimal driving path according to the preset operation tasks and combine the map information. During the driving process, the lidar will continuously collect environmental data, and the control system will match the real-time position with the map to ensure that the AGV travels along the planned path. If it encounters a temporary obstacle, the control system will immediately adjust the path and re-plan a new route to avoid the obstacle to ensure the continuity and safety of the operation.

Dynamic Obstacle Avoidance and Environmental Adaptation Mechanism

Real-time environmental monitoring and emergency adjustment

The laser SLAM navigation technology has excellent dynamic obstacle avoidance capabilities. The lidar can capture the movement information of dynamic objects in the environment in real time, such as pedestrians, other handling equipment, etc. The control system will quickly calculate the safe distance based on this information, and adjust the speed or direction of the AGV in time to avoid collisions. At the same time, the lidar can also accurately identify static obstacles in the environment, and plan the detour corridor in advance to ensure the stable operation of the AGV in complex and changeable scenarios.

Overall, laser SLAM navigation technology provides reliable autonomous operation capabilities for intelligent forward AGVs through a series of coherent links such as sensing, mapping, positioning, navigation, and obstacle avoidance, helping industrial logistics scenarios to achieve efficient and intelligent handling operations.