Turn off the GPS, which may result in no positioning or inaccurate positioning.

When some apps (such as Baidu map) need positioning, GPS can provide more accurate positioning (more accurate than mobile phone signal positioning).

It is recommended to turn it off when not in use, which saves electricity.

There are 24 GPS satellites in the world, ensuring that at least two positioning signals can be received anywhere on the earth.

Simply put, how does GPS work? Every satellite will tell the receiver three things: A. What satellite is it, B. Where is it now, and C. When did you send this message?

When the GPS receiver receives these data, it will store ephemeris data and almanac for use, and these data will also be used to correct the time on the GPS receiver. The GPS receiver compares the receiving time of each satellite signal with that of its own receiver, and calculates the distance of each satellite channel receiver. If the receiver receives more satellites, it can use the triangle formula to calculate the position of the receiver. Three satellites can do so-called 2D positioning (longitude and latitude), and four or more satellites can do so-called 3D positioning (longitude, latitude and altitude). The receiver constantly updates its position, so it can calculate the moving direction and speed.