| 摘要 |
PURPOSE:To provide the automobile navigation system displaying the optimum route corresponding to the road state at this point of time to an automobile when a user using the navigation system inputs an object point. CONSTITUTION:The system is provided with a present location specification means 1 specifying the present location of the automobile, objective point input means 2 inputting the objective point of the automobile, road monitoring means 8 monitoring the road state and outputting the information, route judgement means 9 judging the optimum route to the objective point based on the present location, objective point and the information of the road state, and route display means 3 displaying the judged route. Therefore, when a user inputs an objective point, the optimum route from the present location to the objective point is displayed basing on the road state at the point of time. Thus, the effective navigation for the road state being always changing can be performed. |
