Title: A short range detecting system by ultrasonic sensor

Authors: T. Katayama, O. Hisatosi, O. Masato, H. Terazawa, S. Katayama

Addresses: Toyota Motor Corporation, Toyota, Japan. ' Toyota Motor Corporation, Toyota, Japan. ' Toyota Motor Corporation, Toyota, Japan. ' Toyota Motor Corporation, Toyota, Japan. ' Toyota Motor Corporation, Toyota, Japan

Abstract: Ultrasonic waves have short wavelengths, and they are suitable for distance measuring, and as the ultrasonic resonators can be made comparatively small, they are used widely as sensors. For automobiles, they are used as |Back Sonar| in a system assisting the driver with monitoring the rear of the vehicle. On the other hand, there is demand for monitoring the surroundings of a vehicle, and in order to fulfill this demand, ultrasonic technology has been used to develop a monitoring system at the four corners of a vehicle. This method will be introduced here.

Keywords: analogue signals; digital signals; back sonar; clearance sonar; electronic control; vehicle noise; reflections; reverberations; sound waves; ultrasonic resonators; ultrasonic sensors; vehicle vibration; vehicle monitoring; vehicle design.

DOI: 10.1504/IJVD.1992.061712

International Journal of Vehicle Design, 1992 Vol.13 No.1, pp.47 - 55

Available online: 27 May 2014 *

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