METHOD FOR DETECTING DEFECTS IN NAVIGATION DATA
First Claim
1. A method for automatically detecting defects in navigation data in a navigation system comprising navigation data, which method comprises the steps of:
- computing a route (40) from the current position to a destination upon request; and
guiding the user of the navigation device (41) according to said computed route;
characterized in that the method further comprises steps;
comparing the actual behavior of the user with the computed route (42);
detecting at least one difference between the actual behavior of the user and the computed route (43);
sending detected differences to a receiving unit (44);
collecting detected differences at the receiving (45); and
determining based on the statistics the possible defect in the navigation data (46).
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Accused Products
Abstract
A navigation system using a mobile terminal (14), GPS receiver (13), navigation server (15) and navigation software, wherein the navigation software is arranged to detect defects in navigation or driving conditions data. Defects in the navigation or driving conditions data are detected by comparing the actual behavior of the user with the route computed and sug-gested by the navigation software. The difference be-tween the actual route taken by the user and the com-puted route is detected and sent to the navigation server (15). The navigation server (15) then collects statistical information on such locations on the map where users repeatedly choose a different route from the computed route and determines, based on the sta-tistics, the possible defect in the navigation or driving conditions data.
26 Citations
25 Claims
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1. A method for automatically detecting defects in navigation data in a navigation system comprising navigation data, which method comprises the steps of:
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computing a route (40) from the current position to a destination upon request; and guiding the user of the navigation device (41) according to said computed route; characterized in that the method further comprises steps; comparing the actual behavior of the user with the computed route (42); detecting at least one difference between the actual behavior of the user and the computed route (43); sending detected differences to a receiving unit (44); collecting detected differences at the receiving (45); and determining based on the statistics the possible defect in the navigation data (46). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A navigation device for guiding the user from the current location to a destination, the navigation device (14) being capable of executing a software application and arranged to communicate with a positioning module (13) for receiving the current location of the device, the navigation device comprising a navigation database including navigation data, and which navigation device is further arranged to:
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compute a route from the current position to a destination upon a request; and guide the user of the navigation device according to said computed route; characterized in that the device is further arranged to; compare the actual behavior of the user with the computed route; detect at least one difference between the actual behavior of the user and the computed route; send detected differences to a receiving unit (15); collect the differences at the receiving unit (15); and determine based on the statistics the possible defects in the navigation data. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A navigation software application for detecting defects in navigation data in a navigation device comprising navigation data, and wherein the navigation device has data communication means for communicating with other devices, the software application, when executed in a navigation device, arranged to perform the following steps of:
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computing a route from the current position to a destination upon request; and guiding the user of the navigation device according to said computed route; characterized in that the software is further arranged to perform steps of; comparing the actual behavior of the user with the computed route; detecting at least one difference between the actual behavior of the user and the computed route; sending detected differences to a receiving unit; collecting the differences at the receiving unit; and determining based on the statistics the possible defects in the navigation data. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A navigation system for guiding the user from the current location to a destination comprising:
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a navigation server (15) arranged to receive and send navigation related information from a plurality of navigation devices; a navigation device (14) being capable of executing a software application and arranged to communicate with a positioning module (13) for receiving the current location of the device and the navigation server (14) for sending and receiving navigation data, the navigation device comprising a navigation database including navigation data and which navigation device is further arranged to; compute a route from the current position to a destination upon a request; and guide the user of the navigation device according to said computed route; characterized in that the system is further arranged to; compare the actual behavior of the user with the computed route; detect at least one difference between the actual behavior of the user and the computed route; send detected differences to a receiving unit (15); collect the differences at the receiving unit (15); and determine based on the statistics the possible defects in the navigation data.
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Specification