Three-dimensional visual cargo tracking method and three-dimensional visual cargo tracking system

The invention discloses a three-dimensional visual cargo tracking method and a three-dimensional visual cargo tracking system. The method comprises the following steps: step 1) establishing a 3D modelin a warehouse; step 2) establishing a three-dimensional coordinate system of a bottom map based on the 3D model so that any point in the warehouse is corresponding to a coordinate; step 3) reading tray information and uploading the tray information; step 4) positioning real-time position information of a forklift truck, uploading the real-time position information, and matching and associating the tray information and the real-time position information; step 5) obtaining a real-time coordinate position of the forklift truck, and obtaining the coordinate position of a tray based on the real-time coordinate position of the forklift truck; step 6) comparing the three-dimensional coordinate system of the bottom map and the coordinate position of the tray, determining the real-time position of the tray in the warehou