Development of a Platform Detection System Using Ultrasonic Sensor

Abstract

We have developed an on-car platform detection system using ultrasonic sensors. If a crew member tries to open the train doors when all or part of the train is not at a platform, this system could prevent passengers from falling from the train. But irregular reflection of the ultrasonic waves, due to the roughness of the slab of platform, caused unstable detection. Therefore, we have improved the system.