Reflected type optical vehicle sensor
Y. Sunachi, Mitsuru Imaizumi · 2002
The optical vehicle sensor is a device that performs sensing of vehicles that are in operation by means of the light projector and receiver installed above the road and also performs two-way communications between the device and the vehicle having the on-vehicle communication equipment. Using the sensor and the on-vehicle communication equipment it is possible to obtain the two-way communication function as well as the conventional vehicle sensor function. This permits supplying pertinent information to the vehicle and collecting appropriate information from the vehicle.>