System design of cooperation search for target sound source based on wireless sensor networks

The system consists of three mobile robot cars. The microphone array of detecting sound and magnetoresistive sensor of measuring the course are installed on robots. Three robots form a wireless sensor including the network node and the PC (Sink node). Look for different sound source targets in a noisy environment. Each network node can process sound signal. Using voice recognition algorithms to identify noise in the target signal and taking advantage of the sound source localization algorithm to determine the target direction of the respective sound source. Between the robot nodes and each node with the Sink node, in order to realize multi-source target search task, information is fused to improve the recognition accuracy of the sound source through the wireless sensor network.