PROCEDIMIENTO DE DETERMINACION DE LA POSICION Y ESTADO DE UN OBJETO EN UNA SUPERFICIE CUALQUIERA POR MEDIO DE ULTRASONIDOS

摘要

The position of an object is established by geometric triangulation using distance measurement data obtained from an ultra-sonic transmitter attached to the object being monitored and from physically separated ultra-sonic receivers. Operating synchronisation is provided by an infra-red link which delivers a signal at the instant the ultrasonic emitter delivers a signal, allowing the ultrasonic transmission time to be utilised as a measure of distance. The distance measurement is delivered to a microprocessor programmed to compute position.