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The main purpose of firefighter is to rescue people in the scene of a fire not to extinguish flame. However, the problem is how to know peoples accurate locations in a fired building. Sonar Ball consists of a sonar ball and a monitor device. Both of them have different capabilities. First, the most important function of sonar ball is to radiate ultrasonic wave in the fire accident place. The acoustic wave penetrates walls and forms an echo image of this scene of a fire. Moreover, this image will transmit to the monitor on the firefighters hand by its antenna. They can follow this blueprint to rescue people immediately.
National Taiwan University of Science and Technology
Keelung City, Taiwan
Hsin Yeh, Yan-Ting Chen