Anti-collision Technologies for Unmanned Aerial Vehicles: Recent Advances and Future Trends
It addresses the critical safety problem of collision avoidance for UAVs in civil applications, but it is an incremental survey rather than novel research.
This article presents a comprehensive survey on anti-collision technologies for unmanned aerial vehicles (UAVs), reviewing methods for obstacle sensing, collision prediction, and collision avoidance to enhance UAV safety and survivability.
Unmanned aerial vehicles (UAVs) are widely applied in civil applications, such as disaster relief, agriculture and cargo transportation, etc. With the massive number of UAV flight activities, the anti-collision technologies aiming to avoid the collisions between UAVs and other objects have attracted much attention. The anti-collision technologies are of vital importance to guarantee the survivability and safety of UAVs. In this article, a comprehensive survey on UAV anti-collision technologies is presented. We firstly introduce laws and regulations on UAV safety which prevent collision at the policy level. Then, the process of anti-collision technologies are reviewed from three aspects, i.e., obstacle sensing, collision prediction, and collision avoidance. We provide detailed survey and comparison of the methods of each aspect and analyze their pros and cons. Besides, the future trends on UAV anti-collision technologies are presented from the perspective of fast obstacle sensing and fast wireless networking. Finally, we summarize this article.