| 摘要 |
A system for finding objects (9, 10a, 10b) to which with a tracking device (11a, 11b) is attached, as well as a tracking device (11a, 11b). The tracking decices comprise an electrical power source (15), a processor (14), a memory and a wireless communication module (12). The wireless communication module is capable of sending tracking messages (17) and of receiving messages. The system comprises a system computer (30) that is capable of communicating by way of a communication network with wireless communication modules thereof that are capable of receiving tracking messages (17) or capable of sending messages for the wireless communication module (12) of a tracking device (11a, 11b). The system computer (30) is capable of dispatching a system message with a loss enquiry (310) or with an at-rest enquiry (309) to a data processing device of the applicant. It is also capable of dispatching a system message (18, 19) with a no-loss notice (305) or with a loss notice (311, 319) or with an at-rest notice (307) to the tracking device (11a, 11b). The tracking device (11a, 11b) comprises and a motion detector (16) and is capable of at least temporarily increasing or decreasing the mean power over time of the wireless communication module (12) in consequence of a transport supposition (205) on the basis of an assessment of at least the motion signal. |
