| 摘要 |
A navigation method and system allows dynamic access to different degrees of navigation functions while a vehicle is in motion based on the surrounding vehicles or obstacles as detected by sensors provided on the vehicle. The navigation method includes the steps of detecting whether the user vehicle is in motion or stationary, detecting other vehicles or obstacles surrounding the user vehicle by a sensor and measuring distances therefrom when the vehicle is in motion, evaluating resultant data from the sensor and determining a range of driving conditions, and changing a degree of accessibility to navigation functions based on the range of the driving conditions and displaying entries on a monitor of the navigation system where the maximum number of the entries that can be selected by a user is limited by the degree of accessibility.
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