Device for processing road data or intersection data
First Claim
Patent Images
1. A device for processing data related to at least one intersection, comprising:
- means for detecting at least one present position;
means for comparing the data related to the at least one intersection with data related to the detected present position;
data updating means for changing an intersection value related to number of trips through the one intersection based upon the result of the comparing; and
storage means for storing the changed value.
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Abstract
In traveling toward a destination, locus data for routes traveled by a vehicle is repeatedly learned and stored, and a route is identified in route searching using the stored locus data. The stored locus data may be rearranged or deleted, and undesired locus data is not used in route searching. Storage of locus data may be limited to certain areas so as not to store undesired locus data. The geographical coordinates of the stored locus data are corrected, as required, and locus data such as links are correctly shown on a map.
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Citations
30 Claims
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1. A device for processing data related to at least one intersection, comprising:
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means for detecting at least one present position; means for comparing the data related to the at least one intersection with data related to the detected present position; data updating means for changing an intersection value related to number of trips through the one intersection based upon the result of the comparing; and storage means for storing the changed value. - View Dependent Claims (2)
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3. A device for processing data related to at least one road comprising:
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means for detecting at least one present position; means for comparing the data related to the at least one road with data related to the detected present position; data updating means for changing a road value related to number of trips on the one road based upon the result of comparing; and storage means for storing the changed value. - View Dependent Claims (4)
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5. A device for processing data related to at least one intersection and data related to at least one road, said device comprising:
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means for detecting at least one present position; means for comparing the data related to the at least one road and the data related to the at least one intersection with data related to the detected present position; data updating means for changing an intersection value related to number of trips through the one intersection and for changing a road value related to number of trips on the one road, based on results of the comparing; search means for searching to determine at least one route from a start point or a present position of a vehicle to a destination, giving priority to an intersection which has the highest intersection value and to a road which has the highest road value, as compared to other intersections and roads.
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6. A device for processing data related to at least one intersection or road, comprising:
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means for detecting at least one present position; means for comparing the data related to the at least one intersection or road with data related to the detected present position to determine a correspondence between the detected present position and the at least one intersection or road; and storage means for storing the detected present position as a new intersection or a new road, based upon the result of the determining. - View Dependent Claims (7, 8, 9)
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10. A device for processing data related to at least one intersection or road, comprising:
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a locus data storage unit for storing data related to roads and intersections; means for detecting at least one present position; temporary storage means for temporarily storing data newly acquired based on detection of the one present position, said newly acquired data being related to at least one intersection or road corresponding to the detected present position; and means for selectively adding a portion of the newly acquired data to the data stored in said locus data storage unit, said portion being selected according to satisfaction of at least one predetermined condition. - View Dependent Claims (11, 12, 13)
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14. A device for processing data related to at least one intersection or road, comprising:
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means for detecting at least one present position when the present position moves from a specified point; a data storage unit for storing the data related to the at least one intersection or road; and means for flagging an intersection or road corresponding to the detected present position as a marked item of information, if the detected present position is in a predetermined area relative to the specified point. - View Dependent Claims (15, 16, 17)
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18. A device for processing data related to a cumulative number of trips intersection or road, comprising:
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means for detecting at least one present position when the present position moves from a specified point; means for comparing the data related to the at least one intersection with data related to the detected present position to determine if they correspond; means for changing a passage value related to a cumulative number of trips through the intersection or the road corresponding to the detected present position, if the detected present position is in a predetermined area relative to the specified point. - View Dependent Claims (19, 20)
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21. A device for processing data related to at least one intersection or road, comprising:
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means for detecting at least one present position; comparing means for determining a correspondence between data related to the present position and data related to the one intersection or road; storage means for storing the present position as a new intersection or road, based upon the result of the comparing; and change means for changing a value for the new intersection or road on each occasion the new intersection or road is found to correspond to the detected present position. - View Dependent Claims (22, 23, 24)
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25. A computer-readable medium for use in a navigational device and containing, encoded thereon, a program for processing data related to intersections or roads, said program comprising:
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determining a present position based on detection signals; comparing the determined present position with stored data for intersections or roads to determine a match; responsive to determination of a match with a stored road or intersection, changing a value for said matching road or intersection related to a cumulative number of trips through said matching road or intersection. - View Dependent Claims (26)
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27. A computer-readable medium for use in a navigational device and containing, encoded thereon, a program for processing data related to intersections or roads, said program comprising:
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determining a present position based on input signals from at least one detector; temporarily storing, in a first storage means, data identifying the detected present position; selecting a portion of the temporarily stored data on the basis of satisfaction of at least one predetermined condition; and storing the selected portion of a data in a second storage means, different from said first storage means.
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28. A computer-readable medium for use in a navigational device and containing, encoded thereon, a program for processing data related to intersections or roads, said program comprising:
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determining a present position based on signals from at least one detector; comparing the determined present position with a stored intersection or road to determine correspondence with the stored intersection or road; determining if the detected present position is in a predetermined area relative to a specified point; and flagging the corresponding intersection or road, identified by said comparing, pursuant to a determination that the detected present position is in the predetermined area.
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29. A computer-readable medium for use in a navigational device and containing, encoded thereon, a program for processing data related to intersections or roads, said program comprising:
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determining a present position based on input signals from at least one detector; comparing the determined present position with stored intersections or roads to identify a corresponding intersection or road; determining if the determined present position is within a predetermined area relative to a specified point; and changing a value for a corresponding intersection or road pursuant to determination that the determined present position is within the predetermined area, said value being related to a cumulative number of trips through the corresponding intersection or road.
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30. A computer-readable medium for use in a navigational device and containing, encoded thereon, a program for processing data related to intersections or roads, said program comprising:
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determining a present position based on signals from at least one detector; comparing the determined present position with stored intersections or roads to identify a corresponding intersection or road; storing the determined present position as a new intersection or road based upon the results of the comparing; and changing a value for the new intersection or road on each subsequent ocassion the new intersection or road is found to correspond to a detected present position.
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Specification