JP2005147982A5

JP2005147982A5 -

Info

Publication number: JP2005147982A5
Application number: JP2003389006A
Authority: JP
Filing date: 2003-11-19
Publication date: 2007-01-11
Anticipated expiration: 2023-11-19

Claims

Receives shape data in which position information of nodes arranged on the linear shape of the digital map is arranged , divides the shape data into a plurality of blocks, and associates the shape data with the map data of the digital map on the receiving side Matching method .

The matching method according to claim 1 , wherein the block is generated by cutting the shape data at a predetermined distance.

The matching method according to claim 2 , wherein the certain distance is set to be equal to or less than a length of one side of the minimum unit of the map data.

The matching method according to claim 3 , wherein when the linear shape is a road shape, the cut portion at the predetermined distance is matched with the change point of the road type.

The matching method according to claim 1 , wherein the block is generated by cutting the linear shape at a certain number of nodes.

The predetermined node is thinned out from the linear shape , and the map matching is performed using the shape data obtained by thinning out the node.
Matching method .

Claim wherein the predetermined node to be thinning of interest, the distance and the deflection angle between the node and the adjacent node, as well, characterized in that it is selected in consideration of the density of the linear shape in the vicinity of the node 6 Matching method as described in.

In a matching method of receiving shape data in which position information of nodes arranged on a linear shape of a digital map is arranged and associating the linear shape on a digital map on the receiving side,
A matching method , wherein an angle range for searching for candidate points of the node from the position of the map data corresponding to the position information of the node is set according to the curvature of the linear shape.

The angular range is the linear shape of a predetermined distance section before or after the node or in front of the node.
The matching method according to claim 8 , wherein the matching method is set according to a curvature and a density of the linear shape in the predetermined distance section.

Receives shape data in which position information of nodes arranged on the linear shape of the digital map is arranged, divides the shape data into a plurality of blocks, and converts the first block unit into map data of the digital map on the receiving side After the association, a second block unit to be associated thereafter is selected from a predetermined condition.

The matching method according to claim 10, wherein the second block is selected from blocks having a low road density.

The matching method according to claim 10, wherein the second block is selected from blocks including shape data constituting a curve.

The matching method according to claim 10, wherein the second block is selected from blocks having a predetermined road attribute.

Receives shape data in which position information of nodes arranged on the linear shape of the digital map is arranged, divides the shape data into a plurality of blocks, and converts the first block unit into map data of the digital map on the receiving side A matching method characterized by adaptively changing a parameter in second block unit matching to be associated thereafter in accordance with a result of association.

The matching method according to claim 14, wherein an angle range for searching for candidate points of the node is adaptively changed as the parameter.

15. The matching method according to claim 14 , wherein the size of a range for searching for candidate points of the node is adaptively changed as the parameter.

Receiving means for receiving shape data in which position information of nodes arranged on the linear shape of the digital map held by the information transmitting side is arranged;
Dividing means for dividing the received shape data into a plurality of blocks;
An information receiving apparatus comprising: a matching processing unit that specifies, on a digital map, a shape corresponding to the linear shape for each of the divided blocks.

Shape data acquisition means for acquiring shape data in which position information of nodes arranged on the linear shape of the digital map is arranged;
Shape data cutting means for dividing the shape data into a plurality of blocks;
Node thinning processing means for thinning a predetermined node from the block;
A candidate point search range determining unit that adaptively sets a search range for searching for candidate points of nodes included in the block and sets the candidate points of the nodes included in the search range on its own digital map When,
An information receiving apparatus comprising: matching processing means for identifying a shape corresponding to the linear shape on the map based on the set candidate points.