There is a slight error in the positioning system. In addition to the GPS in the United States, there is also the Beidou satellite navigation system in China. Because the positioning system cannot be extremely accurate, some errors will inevitably occur, which will lead to inaccurate positioning of CITIC Credit Card. Positioning system is an interrelated aggregate or device with the goal of determining spatial position. This system can ensure that at least four satellites can be observed at any point on the earth at any time, thus ensuring that satellites can collect the latitude, longitude and height of observation points, thus realizing navigation, positioning, timing and other functions.