Aiming at problem of coverage overlapping areas and blind spots that nodes deployed randomly in directional heterogeneous sensor networks

introduce a virtual potential field-based coverage algorithm for directional heterogeneous（ PCADH） networks inspired by virtual potential field algorithm. Through involving concepts of overlapping centroid

effective centroid and virtual boundary centroid to the model

this algorithm carries out optimization processing of virtual force

node advance and return movements and boundary in directional heterogeneous networks based on directed perception model. Simulation results show that the proposed algorithm can improve coverage rate of directional heterogeneous sensor networks rapidly and effectively.