Development of a robot for the detection of plastic dangerous objects

In this paper, we propose a robot which detects dangerous articles made of plastic. To detect plastic articles, a corona charger is installed on a robot. The corona charger consists of corona wire through which high voltage is charged. The dangerous articles are identified by the detection of different surface potential by the difference of the electrification series when the corona is applied to the object. A vehicle was developed as a prototype machine. This vehicle has two driving systems; one is the mechanism with two motors and four castors, another one is a motor which moves the sensor up and down.