In this paper, a novel collaboration scheme of autonomous mobile robots,
which is based on chaos synchronization with application to complete and fast
coverage of the whole workspace, is presented. Each one of the mobile robots is
controlled by the simplest four-dimensional hyperchaotic Lorenz-type system,
producing an unpredictable trajectory. When multiple robots are employed for
faster and more complete coverage, effective cooperation can be achieved by
synchronizing these chaotic motions. For this reason, the nonlinear open loop
controller to target the synchronization state of chaotic oscillators is
adopted. Computer simulation illustrates that the proposed synchronized chaotic
robots improve the efficiency of the non-synchronized robots in finishing faster
the same coverage work area.