Monitoring system for detection of loss of e.g. chain of human, has alarm device designed to set off alarm when response signal fails to occur or exhibits signal strength below value, so as to signalize loss of object to be monitored

摘要

The system (100) has a monitoring device (102) fixed to or built in an object (101) e.g. chain, of a human or an animal. The monitoring device includes a transceiver (104) to wirelessly transmit excitation signals (105) to a transponder (103) and wirelessly receive response signals (106) from the transponder. The monitoring device includes an alarm device (107) that is designed to set off an alarm (108) e.g. vibration alarm, when an excepted response signal fails to occur or exhibits signal strength below a preset signal strength value, so as to signalize a loss of the object to be monitored. Independent claims are also included for the following: (1) a method for detection of loss with respect to an object to be monitored (2) a computer program having a set of instructions to execute a method for detection of loss with respect to an object to be monitored.