Object, person or animal locating electronic device for e.g. building, has transmitter box comprising key, and chips with radio-electric signal receiving units, where pressure applied on key permits to trigger operation of buzzer on chips

摘要

The device has a transmitter box comprising a sixteen bits microcontroller for generating periodic trames containing synchronization, application, address and identity information. Six reception chips have radio-electric signal receiving units and coding units permitting to identify and to know the information of the trames. The chips are fixed on an object to be located, where a simple pressure applied on a key of the box permits to trigger the operation of a buzzer on the chips.