People have never left Wuxi. Why did they receive the information of landing inspection?

The system sent an error message. The message that people have never left Wuxi for landing inspection is an error message sent by the system. In the actual investigation of the system, the mobile phone number that has appeared in the range is delineated by the data of the mobile phone base station, and it is judged that the population is exposed to the epidemic-related places. Wuxi, referred to as "tin" for short, was called Liangxi and Jingui in ancient times. It is a prefecture-level city in Jiangsu Province, one of the central cities in the Yangtze River Delta, and an important scenic tourist city approved by the State Council.