Development of sensing device to detect human hiding in a car

This paper describes a novel method for detecting the presence of a person hiding in a car. One of the important strategies of homeland security is border control. In particular, strict and effective monitoring to control illegal immigration is a key strategy for maintaining public safety and a healthy local economy, and is essential for preventing the entry of terrorists. Here, we focused on developing a method to detect a person trying to illegally cross the border by hiding in a car. The proposed method is based on vibrations produced by human vital signs. The vibrations of the entire car are measured by piezoelectric ceramic sensors in a device placed under the wheel. Vibrations from wind and noise, etc. are removed using an appropriate filter. The outcome of an experiment using the proposed method is also presented in this paper.