Microphone array based auditory localization for rescue robot

Because of the smoke or collapsed walls in the buildings while fire or earthquake occurred, a rescue robot can not directly find the target which is in other rooms or invisible places by using visual, ultrasonic or infrared ray sensors. According to the diffraction property of audio signal, the sound can bypass obstacles. By using microphone array, combined with the speech recognition technology, an audio-based robot navigation system is developed to make it feasible to guide the robot find the target shouting for help. And ideal effects are obtained in experiments.