| 摘要 |
A vehicle navigation system including a navigation signal receiving means adapted to receive navigation signals, e.g. a GPS signal, including a position area, within said area the vehicle is located, a processing means comprising a map having a structure with one-dimensional segments having two nodes. Solutions are assigned scores by said processing means according to a score assigning algorithm based on received navigation signals, a number of possible solutions indicating possible positions of the vehicle are determined based on the number of assigned scores and an optimal solution indicating the position of the vehicle is obtained by applying optimal solution criteria on said determined solutions. The system also includes an indicating means that generates an alarm signal if the present speed of the vehicle in the present position exceeds the present speed limit.
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