<title>Precision navigation sensor using position-sensitive detector for automatic navigation vehicle</title>

This paper describes a precision navigation sensor used for real-time navigation in which position sensitive detector is used. According to the features of position sensitive detector, the special floor mark stuck on the predefined path is developed. In addition, the formulae for the centroid of the light intensity of the image of incident laser line of position sensitive detector determined by the relative position between the floor mark and the navigation senor is derived. The navigation sensor, which can obtain high navigation accuracy and proper controlling signal, navigates the automatic navigation vehicle running on the predefined path. It is suitable for application in automatic navigation vehicle and other automatic instruments. The experimental result are given.