Intelligent restaurant service robot

The invention discloses an intelligent restaurant service robot. The intelligent restaurant service robot comprises a shell, wherein the bottom of the shell is provided with a movable base plate, themovable base plate is provided with driving wheels and driven wheels, two of the wheels are the driving wheels, and the rest are the driven wheels; the driving wheels are driven by a motor, and the driven wheels are universal wheels; cameras and 3D visual imaging sensors are arranged at the positions, closed to the upper part, of the front and back of the shell; an upper-layer ultrasonic sensor and a lower-layer ultrasonic sensor are arranged on the periphery of the shell, and the sensors are used for distance measurement and obstacle avoidance; a food tray is arranged at the top of the shell,and a cover body capable of moving up and down is arranged on the upper part of the food tray; one side of the middle of the shell is inwards recessed to form a cavity for containing articles; a rechargeable lithium battery p