Digital map position information transfer method
First Claim
1. An encoder utilized for a location reference system wherein different digital maps are installed in a transmitting side and a receiving side of said system, said encoder comprising:
- a selecting section for selecting supplemental points located around an endpoint of a target shape points set, wherein said supplemental points are referred by said receiving side in order to define a corresponding shape points set of said target shape points set during map matching; and
a data creating section for preparing a transmitting data including both said target shape points set and said supplemental points to said receiving side.
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Abstract
An encoder and a decoder are utilized for a location reference system in which different digital maps are installed in a transmitting side and a receiving side. The encoder comprises a selecting section for selecting supplemental points located around an endpoint of a target shape points set and a data creating section for preparing a transmitting data including both the target shape points set and the supplemental points to the receiving side. The decoder comprises a data acquiring section for acquiring data including supplemental points located around an endpoint of a target shape points set, a defining section for defining a shape points set on the digital map of the receiving side with reference to the supplemental points, and an output section for outputting a road section on the digital map of the receiving side in accordance with the defined shape points set.
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Citations
4 Claims
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1. An encoder utilized for a location reference system wherein different digital maps are installed in a transmitting side and a receiving side of said system, said encoder comprising:
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a selecting section for selecting supplemental points located around an endpoint of a target shape points set, wherein said supplemental points are referred by said receiving side in order to define a corresponding shape points set of said target shape points set during map matching; and
a data creating section for preparing a transmitting data including both said target shape points set and said supplemental points to said receiving side.
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2. A decoder utilized for a location reference system wherein different digital maps are installed in a transmitting side and a receiving side of said system, said decoder comprising:
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a data acquiring section for acquiring data including supplemental points located around an endpoint of a target shape points set;
a map matching section for defining a shape points set, which is corresponding to the transmitter target shape points set, on the digital map of the receiving side by map matching with reference to the supplemental points; and
an output section for outputting a road section on the digital map of the receiving side in accordance with the defined shape points set.
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3. An encoder utilized for a location reference system wherein different digital maps are installed in a transmitting side and a receiving side of said system, said encoder comprising:
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a selecting section for selecting supplemental points located around an endpoint of a target shape points set, wherein said supplemental points are referred by said receiving side in order to define a corresponding shape points set of said target shape points set; and
a data creating section for preparing a transmitting data including both said target shape points set and said supplemental points to said receiving side.
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4. A decoder utilized for a location reference system wherein different digital maps are installed in a transmitting side and a receiving side of said system, said decoder comprising:
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a data acquiring section for acquiring data including supplemental points located around an endpoint of a target shape points set;
a defining section for defining a shape points set, which is corresponding to the transmitter target shape points set, on the digital map of the receiving side with reference to the supplemental points; and
an output section for outputting a road section on the digital map of the receiving side in accordance with the defined shape points set.
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Specification