Next-generation RPAS ground control systems: Remote pilot or air traffic controller?

As the level of autonomy in remotely-piloted aircraft systems (RPAS) increases, the controller's role is transitioning from one of pilot, to one of supervisor. To capitalize on this, future operations are likely to involve one controller in command of multiple aircraft. The typical human-machine interface (HMI) employed in the current-generation ground control systems is unlikely to be optimal as the number of aircraft being controlled increases. This paper details a simulation environment in which multiple-aircraft HMIs can be tested. It also presents results of an initial study into a new HMI that helps reduce controller workload and maintain situational awareness in multiple-aircraft missions. The results demonstrate that using the new HMI reduces workload, and increases safety, as compared to a standard HMI configuration