METHOD AND NAVIGATION DEVICE FOR DETERMINING THE ESTIMATED TIME OF TRAVEL
First Claim
1. Navigation method for determining the estimated time of travel and time of arrival in the route determination on a digital road map by means of a navigation device comprising:
- a) providing a navigation system including a position determining unit, a speed determining unit, a processor unit, a mass storage unit and an input/output device;
b) classifying a road network of the digital road map into road sections, each road section being allocated at least one corresponding road category and each road category being allocated an average speed in a speed table, wherein the estimated time of travel of a route is calculated from the lengths and from the average speeds, stored in the table, of the road sections of the route, and wherein the user speeds calculated by the speed determining unit can additionally be included into the speed table; and
c) classifying the speed table into temporal classes for at least one road category, wherein one temporal class is respectively allocated separate average speeds as a function of the weekday and/or the time of day.
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Abstract
The present invention relates to a method for determining the estimated time of travel and time of arrival in the route determination on a digital road map by means of a speed table and by means of measured user speeds. Moreover, the present invention relates to a corresponding computer program product and to a digital storage medium as well as to a corresponding navigation device.
The present invention is characterized by the feature that the speed table is classified into temporal classes (k, l, m, n) for at least one, preferably for each road category (B), wherein one temporal class is respectively allocated separate average speeds as a function of the weekday and/or the time of day (A).
By means of the present invention, the user-specific driving behavior in determining the estimated time of travel can be automatically taken into consideration by a navigation device and the estimated time of arrival of the user can be determined as a function of various, particularly temporal and/or geographic road attributes, with the degree of accuracy gradually increasing with increasing frequency of use. Thereby, especially type-of-day- or time-of day-related speed variations can be taken into consideration in determining the estimated times of arrival.
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Citations
17 Claims
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1. Navigation method for determining the estimated time of travel and time of arrival in the route determination on a digital road map by means of a navigation device comprising:
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a) providing a navigation system including a position determining unit, a speed determining unit, a processor unit, a mass storage unit and an input/output device; b) classifying a road network of the digital road map into road sections, each road section being allocated at least one corresponding road category and each road category being allocated an average speed in a speed table, wherein the estimated time of travel of a route is calculated from the lengths and from the average speeds, stored in the table, of the road sections of the route, and wherein the user speeds calculated by the speed determining unit can additionally be included into the speed table; and c) classifying the speed table into temporal classes for at least one road category, wherein one temporal class is respectively allocated separate average speeds as a function of the weekday and/or the time of day. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification