GPS stands for the global positioning system. It is a navigation system that navigates and determines the position and time of the object, moving or non-moving on the ground with the help of satellites. More than 30 navigation satellites are deployed in the space which is constantly moving around the earth’s surface. They circle around the earth twice a day and the speed of each satellite is 11200 km/h.
These satellites are spread out evenly so that each satellite can connect to other 4 satellites and no corner of earth would remain uncovered. They send out signals on the earth continuously.
GPS system consist of 3 parts,
- Space unit
- Control unit
- User unit
The space unit consists of navigation satellites which are arranged in a constellation kind of network which transmits one-way signal of position and time.
Control unit consists of monitors and stations that control over these satellites
The user unit consists of GPS receivers, which receives satellites signal to understand the user’s 3D position at any particular time.
Application of GPS,
- Heat mapping
- Content delivery
- Auto check-in
- Wireless charging