Consider a finite set of targets, with each target assigned a
, and each pair of targets assigned a fixed transit
. Given a flock of identical UAVs, can one ensure that every target is repeatedly visited by some UAV at intervals of duration at most the target’s relative deadline? The
Cyclic-Routing UAV Problem
is the question of whether this task has a solution.
This problem can straightforwardly be solved in PSPACE by modelling it as a network of timed automata. The special case of there being a single UAV is claimed to be NP-complete in the literature. In this paper, we show that the
Problem is in fact PSPACE-complete even in the single-UAV case.