How does a GPS tracker work?

GPS tracking technology has transformed how we track vehicles, assets, and individuals. Yet, how does a GPS tracker function? Knowing how it works can assist individuals and enterprises to get the most out of it.

The Working Principle of GPS Tracking

A GPS tracker works with the Global Positioning System (GPS), a system of satellites that constantly send signals to Earth. These signals are received by the device and used to calculate its exact location using a process known as triangulation or trilateration.

Step-by-Step Functioning of a GPS Tracker

Reception of Signals from Satellites:

• GPS trackers use a minimum of four satellites to compute their precise location.
• The satellites transmit time-stamped location information to the tracker.

Calculation of Location:

• The GPS tracker computes the signals received to ascertain latitude, longitude, altitude, and speed.
• It employs triangulation, in which the device calculates the distance from several satellites to determine its precise location.

Data Transmission:

• Once the location is established, the GPS tracker sends data to a central server via cellular networks (SIM-based trackers) or satellite communications.
• The data can be viewed through mobile applications, web interfaces, or software platforms.

Real-Time Monitoring & Alerts:

• Subscribers can view real-time location, history of movement, and geofencing alerts.
• In the event of emergencies, GPS trackers can issue SOS alerts or alert subscribers regarding unauthorized movements.
• Types of GPS Trackers Based on Connectivity.
• Active GPS Trackers: Send real-time location updates continuously.
• Passive GPS Trackers: Log location data to be retrieved later when it is connected to a computer or cloud-based service.

Applications of GPS Trackers

1. Vehicle Tracking: Helps in tracking fleet movement, fuel consumption, and driver habits.
2. Personal Safety: Used to follow children, elderly people, and adventure tourists.
3. Asset Protection: Protects valuables such as shipments, cargo, and high-value equipment.
4. Pet Tracking: Tracks where pets are, lowering the risk of them getting lost.

Conclusion

GPS tracking sends satellite signals, determines position, and communicates data for real-time monitoring. GPS technology provides increased security, efficiency, and peace of mind for personal security, fleet management, or asset tracking. As GPS advances are made continuously, GPS tracking is ever more precise and diverse in application.