Navigation system for automotive vehicle
First Claim
1. A navigation system for an automotive vehicle, comprising:
- first means for storing first known target points and adjoining target points preselected for each of said first target points, said adjoining target points being preselected from said first target points;
second means for storing a first data group associated with each of said first target points, each of said first data groups including a second data group corresponding to each of said adjoining target points of the corresponding first target point, each of said second data groups including an abstract configuration of said corresponding first target point and travel guidance information required at said corresponding first target point for going to the corresponding adjoining target point;
third means for defining a travel route of the vehicle including second target points therein, said second target points being selected from said first target points;
fourth means for storing said second target points;
fifth means for setting third and fourth target points selected from said stored second target points, said third target point being a next forward target point for the vehicle along said travel route and said fourth target point being one of said adjoining target points of said third target point and being positioned forward of said third target point along said travel route;
sixth means for monitoring a position of the vehicle;
seventh means for monitoring a positional relationship between the monitored position of the vehicle and said third target point; and
eighth means, responsive to said monitored positional relationship, for selecting one of said second data groups based on said third target point being used as the target point and said fourth target point being used as the adjoining target point so as to display, before the vehicle reaches said third target point, the corresponding travel guidance information such that said corresponding travel guidance information is superimposed on said abstract configuration of said third target point so as to form an integral image of said third target point by said corresponding travel guidance information and said abstract configuration of the third target point.
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Abstract
A navigation system for an automotive vehicle includes a map data storage unit. The storage unit stores first known target points and adjoining target points preselected for each of the first target points from the first target points. The storage unit further stores a first data group associated with each of the first target points. Each of the first data groups includes a second data group corresponding to each of the adjoining target points of the corresponding first target point. Each of the second data groups includes an abstract configuration of the corresponding first target point and a travel information required at the corresponding first target point for going to the corresponding adjoining target point. The system selects second target points from the first target points to define a vehicle travel route. The system further selects one of the second data groups based on third and fourth target points selected from the second target points. The third target point is a next forward target point for the vehicle and the fourth target point is one of the adjoining target points of the third target point and positioned forward of the third target point. The third target point is used as the target point and the fourth target point is used as the adjoining target point for identifying the one of the second data groups. The system displays the corresponding travel information along with the abstract configuration of the third target point before the vehicle reaches the third target point.
58 Citations
15 Claims
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1. A navigation system for an automotive vehicle, comprising:
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first means for storing first known target points and adjoining target points preselected for each of said first target points, said adjoining target points being preselected from said first target points; second means for storing a first data group associated with each of said first target points, each of said first data groups including a second data group corresponding to each of said adjoining target points of the corresponding first target point, each of said second data groups including an abstract configuration of said corresponding first target point and travel guidance information required at said corresponding first target point for going to the corresponding adjoining target point; third means for defining a travel route of the vehicle including second target points therein, said second target points being selected from said first target points; fourth means for storing said second target points; fifth means for setting third and fourth target points selected from said stored second target points, said third target point being a next forward target point for the vehicle along said travel route and said fourth target point being one of said adjoining target points of said third target point and being positioned forward of said third target point along said travel route; sixth means for monitoring a position of the vehicle; seventh means for monitoring a positional relationship between the monitored position of the vehicle and said third target point; and eighth means, responsive to said monitored positional relationship, for selecting one of said second data groups based on said third target point being used as the target point and said fourth target point being used as the adjoining target point so as to display, before the vehicle reaches said third target point, the corresponding travel guidance information such that said corresponding travel guidance information is superimposed on said abstract configuration of said third target point so as to form an integral image of said third target point by said corresponding travel guidance information and said abstract configuration of the third target point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification