| 摘要 |
The device (1) serves as hand-held personal navigation system for locating predetermined objects at their stored locations. In one embodiment, the device comprises a flat display (52) on which appears information (e.g. a symbol designating the object) at a position on the screen corresponding to where that object is relative to the device. The position of the device is determined by a position sensor (3), e.g. an inertial device or a telemetry receiver cooperating with reference signal sources. The position of the object to locate is known from an initial recording of its position, and the position of the device relative to that object is calculated by a controller (6). Preferably, the recording is obtained by a bar code reader (4) that reads identification data on the object at its location. These data are recorded in a memory together with the position of object, as determined by the sensor (3). <IMAGE> |
