CPC G08B 21/023 (2013.01) [G08B 21/02 (2013.01); G08B 21/0233 (2013.01); G06F 1/3209 (2013.01); G08B 7/06 (2013.01)] | 20 Claims |
1. A method for recovering a discarded tracking device, the method comprising:
receiving, by a target monitor device, a message including a defined wake-up time;
storing, by the target monitor device, the defined wake-up time;
entering, by the target monitor device, a low level power mode, wherein in the low level power mode the target monitor device maintains a timer; and
upon the timer indicating the defined wake-up time has arrived, causing an alert circuit to generate an alert signal.
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