Object presence analysis system and method

摘要

A presence analysis system for objects carried by a user has a signal-transmitter provided on the object to be observed in terms of its presence for transmitting an object or signal-transmitter specific signal and a receiver for receiving signals including the object or signal-transmitter specific signal. A capacitative link formed by the person or clothing of the person conducts the signal from the transmitter to the receiver. An analysis unit coupled with the receiver generates an output signal indicating the presence or absence of the object by analysis of the signals received.