What is a key reason for using geofencing technology in drones?

Geofencing technology in drones is primarily implemented to create virtual barriers that prevent unauthorized access to specific areas. This is essential for enhancing safety and security, particularly in sensitive zones such as airports, military installations, and populated urban environments. By using GPS or RFID technology, geofences define predetermined geographical boundaries. When a drone approaches these boundaries, the geofencing system can take various actions, such as alerting the operator, preventing the drone from entering the area, or even automatically returning the drone to a safe location.

The other options, while related to drone operation, do not accurately capture the primary function of geofencing. For instance, increasing flight speed is related more to the drone's design and capabilities rather than geofencing. Similarly, enhancing battery efficiency and obstacle detection are also functions that do not directly relate to the purpose of geofencing technology. Thus, the use of geofencing serves as a crucial safety mechanism by delineating zones where drone flight is restricted or prohibited, ensuring compliance with regulations and protecting both the public and the drone itself.