Patent ID: 6081223
Filing Date: 2000-06-27
Classification: G01S

Abstract:
A vehicle on which a millimeter wave radar which transmits a transmitted wave from a transmitting antenna of the millimeter wave radar mounted on the vehicle, receives a reflected wave from an object with a receiving antenna, and detects a distance and a relative velocity to the object is mounted, said vehicle on which a millimeter wave radar is mounted, comprising:a reflector which is installed at a predetermined position near a road along which the vehicle is traveling and changes the reflection intensity of the reflected wave every predetermined period of time to indicate a road state near the predetermined position and traffic information with the change;a memory unit which is mounted on the vehicle and in which the change and an operation command of the vehicle based upon the change are stored beforehand, being made to correspond to each other; anda control unit which is mounted on the vehicle, reads the operation command corresponding to the detected change from said memory unit when the millimeter wave radar detects the change, and supplies the read operation command to a vehicle operating means of the vehicle to operate the vehicle.