Autonomous Food Delivery Robot with 3D Obstacle Avoidance and LED Screen. 3D Obstacle Avoidance: Advanced sensors including RGBD, Lidar, and Ultrasound ensure safe navigation. Multi-Floor Navigation: Automatically plans routes and calls elevators in multi-story buildings. Large LED Display: Features a 21.5-inch advertising screen for promotional content. Dual Navigation System: Combines Visual SLAM and Laser SLAM for precise positioning. Voice Interaction: Supports voice prompts and simple touch operation for ease of use. Indoor and Outdoor Use: Designed to operate in temperatures from 0 to 40 degrees Celsius. High Load Capacity: Single layer can carry up to 40kg with a total capacity of 20-29kg. Efficient Delivery: Reduces manual labor and improves service efficiency in catering.