| 摘要 |
A location finder device uses a GPS (Global Positioning System) to lock in location coordinates of a user site or a stationary car and then uses GPS and the last locked-in coordinates to direct the user back to the original location. The device may use special encrypted, firm-coded language to handle each function and operation, such as to calculate all locked in coordinates and to display the distance for the user to return to the last locked-in location.
|
