METHOD FOR TRANSMITTING LOCATION INFORMATION ON A DIGITAL MAP, APPARATUS FOR IMPLEMENTING THE METHOD AND TRAFFIC INFORMATION PROVISION/RECEPTION SYSTEM
First Claim
1. A system for transmitting location information from a transmitting apparatus to a receiving apparatus, the system comprising:
- the transmitting apparatus that has a first digital map and transmits the location information including a list of coordinates of points which indicates a first road segment on the first digital map; and
the receiving apparatus that has a second digital map which contains a different error from the first digital map, receives the location information from said transmitting apparatus and identifies a second road segment on the second digital map which corresponds to the first road segment on the first digital map based on the location information received from said transmitting apparatus.
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Accused Products
Abstract
Location information transmission apparatus for exchanging information about the on-road location on a digital map, characterized in that apparatus at an information provider comprises a location information converter for converting transmit on-road location information to road shape data including the on-road location consisting of a string of coordinates representing the road shape of a road section having a length that depends on the situation and relative data indicating the on-road location in the road section, and that apparatus at a party receiving the on-road location information comprises a shape matching section for performing shape matching by using the road shape data, identifying the road section on a digital map and identifying the on-road location in the road section by using the relative data. This makes it possible to correctly exchange information about the location on a digital map without defining node numbers or link numbers on a road network.
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Citations
12 Claims
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1. A system for transmitting location information from a transmitting apparatus to a receiving apparatus, the system comprising:
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the transmitting apparatus that has a first digital map and transmits the location information including a list of coordinates of points which indicates a first road segment on the first digital map; and the receiving apparatus that has a second digital map which contains a different error from the first digital map, receives the location information from said transmitting apparatus and identifies a second road segment on the second digital map which corresponds to the first road segment on the first digital map based on the location information received from said transmitting apparatus.
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2. A system for transmitting location information from a transmitting apparatus to a receiving apparatus, the system comprising:
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the transmitting apparatus that has a first digital map and transmits the location information including a list of coordinates of points which indicates a first road segment on the first digital map; and the receiving apparatus that has a second digital map which contains a different error from the first digital map, receives the location information from said transmitting apparatus and identifies a second road segment on the second digital map which corresponds to the first road segment on the first digital map by matching a road shape specified by the received location information with a road shape on the second digital map.
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3. A method of transmitting location information from a transmitting apparatus having a first digital map to a receiving apparatus having a second digital map which contains a different error from the first digital map, the method comprising:
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transmitting, by the transmitting apparatus, the location information including a list of coordinates of points which indicates a first road segment on the first digital map; receiving, by the receiving apparatus, the location information from said transmitting apparatus; and identifying, by the receiving apparatus, a second road segment on the second digital map which corresponds to the first road segment on the first digital map based on the location information received from said transmitting apparatus.
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4. A method of transmitting location information from a transmitting apparatus having a first digital map to a receiving apparatus having a second digital map which contains a different error from the first digital map, the method comprising:
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transmitting, by the transmitting apparatus, the location information including a list of coordinates of points which indicates a first road segment on the first digital map; receiving, the receiving apparatus, the location information from said transmitting apparatus; and identifying a second road segment on the second digital map which corresponds to the first road segment on the first digital map by matching a road shape specified by the received location information with a road shape on the second digital map.
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5. A location information providing apparatus for providing location information to a receiving apparatus having a first digital map for identifying a road segment on the first digital map, the location information providing apparatus comprising:
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a second digital map which contains a different error from the first digital map; and a transmitting unit that transmits the location information including a list of coordinates of points which indicates a road segment on the second digital map.
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6. A location information providing apparatus for providing location information to a receiving apparatus having a first digital map for identifying a road segment on the first digital map by matching a road shape specified by the location information with a road shape on the first digital map, the location information providing apparatus comprising:
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a second digital map which contains a different error from the first digital map; and a transmitting unit that transmits the location information including a list of coordinates of points which indicates a road segment on the second digital map.
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7. A method of providing location information from a location information providing apparatus to a receiving apparatus having a first digital map for identifying a road segment on the first digital map, the location information providing apparatus having a second digital map which contains a different error from the first digital map, the method comprising:
transmitting the location information including a list of coordinates of points which indicates a road segment on the second digital map.
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8. A method of providing location information from a location information providing apparatus to a receiving apparatus having a first digital map for identifying a road segment on the first digital map by matching a road shape specified by the location information with a road shape on the first digital map, the location information providing apparatus having a second digital map which contains a different error from the first digital map, the method comprising:
transmitting the location information including a list of coordinates of points which indicates a road segment on the second digital map.
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9. A receiving apparatus comprising:
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a first digital map; a receiving unit that receives location information including a list of coordinates of points which indicates a road segment on a second digital map of a transmitting apparatus, the second digital map containing a different error from the first digital map; and an identifying unit that identifies a road segment on the first digital map based on the received location information.
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10. A receiving apparatus comprising:
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a first digital map; a receiving unit that receives location information including a list of coordinates of points which indicates a road segment on a second digital map of a transmitting apparatus, the second digital map containing a different error from the first digital map; and an identifying unit that identifies a road segment on the first digital map by matching a road shape specified by the received location information with a road shape on the first digital map.
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11. A method of receiving location information by a receiving apparatus from a transmitting apparatus, the method comprising:
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receiving the location information including a list of coordinates of points which indicates a road segment on a first digital map of the transmitting apparatus; and identifying a road segment on a second digital map of the receiving apparatus based on the received location information, the second digital map containing a different error from the first digital map.
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12. A method of receiving location information by a receiving apparatus from a transmitting apparatus, the method comprising
receiving the location information including a list of coordinates of points which indicates a road segment on a first digital map of the transmitting apparatus; - and
identifying a road segment on a second digital map of the receiving apparatus by matching a road shape specified by the received location information with a road shape on the second digital map, the second digital map containing a different error from the first digital map.
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Specification