Automatic side view mirror tracking system with real-time angle calculation

摘要

An automatic side view mirror tracking system for an articulated vehicle relies upon three sets of ultrasonic transducers to develop distance measurements between two portions of the articulated vehicle. The angle between the portion of the articulated vehicle is calculated by relying on trigonometric algorithms depending only on the spacing of the transducers and the distance measurements developed by the ultrasonic transducers. Each transducer pair is configured so that both transducers are used for both transmission and reception. The transducer pairs are configured to receive reflected signals originated by other transducer pairs as well as the same transducer pair.