| 摘要 |
<p>A guidance system for guiding a user to selected targets located within a defined area (10), such as a warehouse, museum, parking garage, etc., includes a portable unit (14) to be carried by each user and having a memory (31) for storing target information identifying a selected target within the defined area (10), and a transmitter (35) for transmitting signals identifying the selected target within the defined area (10). The system further includes at least one changeable guidance sign (15) at a predetermined location within the defined area (10) for receiving signals transmitted by a portable unit (14) and for displaying stored guidance information of the location of a target corresponding to a signal transmitted from the portable unit (14), and/or a plurality of target devices (16) at the target location for receiving target signals transmitted by a portable unit (14) and for indicating that a receiving target signal identifies the respective target.</p> |
