Digital sand table display method, device and system for smart city

The invention relates to a digital sand table display method, device and system for a smart city, and the method comprises the steps: a business distribution unit monitors a business instruction, receives and analyzes a data package, generates the coordinate position and business type data of a city map, and transmits the coordinate position and business type data to a 3D modeling unit; the 3D modeling unit receives the generated urban map coordinate position and business type data, generates corresponding three-dimensional image data, and transmits the three-dimensional image data to the 3D display unit; and the 3D display unit receives the three-dimensional image data, generates a corresponding 3D image according to the splicing data of the LED display screen, and outputs the 3D image to the LED display screen. According to the method, the use condition of digital sand table display of a smart city is fully met, the cost is reduced, the on-load resources are reasonably configured, the system speed is improv