Acoustic Source Localization Technology Research in Wireless Sensor Networks

Localization technology is a hot research point in the sensor network area. For low power consumption and long life characteristics of sensor nodes, sound location technology has its specificities using in wireless sensor network. In this paper we proposed a sensor network with sound position function, in which three sensor nodes with acoustic sensor have been used to detect trajectory of a small car. This paper selects digital signal processors as controllers and processors for wireless sensor networks nodes. The experimental results show that this approach can achieve a good positioning of moving targets.