METHOD FOR AUTOMATICALLY PROMPTING DETOUR
First Claim
1. A method of automatically prompting a detour, suitable for an navigation device that is moving forward according to a route, comprising:
- calculating a moving speed of the navigation device according to a navigating signal of the navigation device;
counting the time when the moving speed is smaller than a predetermined speed; and
prompting a message asking for planning a new route when the moving speed is continuously smaller than the predetermined speed and the counted time exceeds a predetermined time.
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Accused Products
Abstract
A method for automatically prompting a detour is disclosed. When a user drives slowly because of heavy traffic, a navigation device automatically prompts the user to tale a detour. The method includes the following steps. First, the navigation device calculates its moving speed according to its navigation signal. Then, the navigation device begins to count the time when the moving speed is smaller than a predetermined speed. When the moving speed is continuously smaller than the predetermined speed and the counted time exceeds a predetermined time, the navigation device prompts a message asking whether to plan a new route.
21 Citations
8 Claims
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1. A method of automatically prompting a detour, suitable for an navigation device that is moving forward according to a route, comprising:
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calculating a moving speed of the navigation device according to a navigating signal of the navigation device;
counting the time when the moving speed is smaller than a predetermined speed; and
prompting a message asking for planning a new route when the moving speed is continuously smaller than the predetermined speed and the counted time exceeds a predetermined time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification