The wireless charging coverage system of Xilin, is part of the Smart City project.
A bunch of robots are running around the city, and charging is really a troublesome thing.
Although robots use advanced heavy element batteries that can last a long time, queuing for charging is a waste of time. If there are too few charging stations specifically for robots, it will lead to queuing, and too many would be uneconomical.
So, wireless charging was long planned into the construction project of the Smart City. It's just beginning to be officially deployed now because Dou Dou had to unify standards, requiring discussions with numerous domestic companies to standardize protocols, which is obviously not a simple task.
The critical parts of wireless charging hardware are the coils in the transmitter and receiver, which need to be standardized to be compatible with as many devices as possible. Additionally, a communication module is needed to adjust charging power and monitor temperature.