Researchers have developed the CAROS (Climbing Aerial RObot System) wall-climbing robot with higher mobility than existing wall-climbing robots because it can fly. It also can restore its pose after an accidental fall due to an unexpected disturbance. Since the robot can stick to the surface, it can perform close inspection and maintenance of the structure.

The CAROS technology can be used as a surveillance robot for use in fires or disasters, as it can pass through narrow indoor environments by changing its mode from wall climbing to flying, and vice-versa. If CAROS is equipped with a thermal camera, it can detect and track humans through thermal images. In addition, it can transmit environment information by wireless communication.

Currently, FAROS (Fireproof Aerial RObot System) is being developed based on the CAROS that can both fly and climb the vertical wall to overcome narrow or destroyed spaces caused by fire. The robot body is covered with aramid fiber to protect its electric components and mechanical parts from the direct effects of the flame.