The application of WSN technology in the space location system

Wireless sensor networks (WSN) has important value of research and use in many fields. Self-localization of WSN has been the basis of most of uses in WSN. In this paper, we present a low energy cost space location system based on WSN technology and random sampling algorithm, such that we can locate a person holding an WSN mote in real time. In this system, by using the representation based on random sampling, our location algorithm can represent arbitrary distribution. According to the comparison of the simulation results, we conclude that the movement trajectory acquired by this system is very close to the real movement trajectory, and the number of location errors does not rely on the number of sampling numbers very obviously.