| 摘要 |
A location system comprises a remote device (3) which is attached to an object being located, for example a laptop computer (1). The location of the object is first determined to be within a first area (4) using cellular communication signals emitted by the remote device (3). For example, cellular triangulation techniques and/or cell location information can be used for this purpose. An operator carrying a mobile tracking device (5) then moves to the vicinity of the first area (4). The location of the remote device (3) within the first area (4) is determined by detecting a signal emitted by a radio beacon on the remote device (3). The remote device may be activated and/or deactivated using a paging unit in order to save power consumption. <IMAGE> |
