In a geofencing system, what technology is primarily used?

In a geofencing system, GPS technology is primarily used to define virtual boundaries for unmanned aircraft systems. Geofencing relies on the Global Positioning System (GPS) to create defined geographical areas in which a drone or UAV can or cannot operate. When the UAV approaches or breaches these boundaries, the GPS technology enables the system to trigger specific responses, such as alerts, automatic returns, or restrictions on further movement.

This method takes advantage of the accuracy and capabilities of GPS to monitor positioning in real-time, ensuring that the aircraft adheres to the designated airspaces and regulations. This helps in maintaining safety and compliance with aviation laws, especially in protecting sensitive areas like airports or restricted zones. Other options, like infrared sensors or radar systems, do not provide the same geographical precision for establishing boundaries in the way that GPS does, making GPS the most effective and widely used technology in geofencing systems.