Apparatus and method for location determination

摘要

A transponder (3) on the moving object has an infrared receiver (31) and an ultrasound transmitter (32). A monitoring system has an infrared transmitter (21) and an ultrasound receiver (22). An infrared trigger signal (IR-TC) is output, which causes the transmission of an ultrasound signal (US) by the ultrasound transmitter. The ultrasound signal is received by the ultrasound receiver. The position of the moving object is determined by an evaluation unit (1) using the propagation time of the ultrasound signal. An Independent claim is included for a position determining method.