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Road matching method based on fusion of probe vehicle movement track and electronic map

A technology of electronic map and moving trajectory, which is applied in the direction of road network navigator, etc., can solve the problem of low accuracy of matching results, achieve the effect of enhancing reliability and decision-making rationality, avoiding calculation, and reducing error precision

Inactive Publication Date: 2015-05-20
JILIN UNIV
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Problems solved by technology

[0005] The invention provides a road matching method based on the fusion of the moving track of the floating car and the electronic map to solve the problem of low accuracy of the current matching results

Method used

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  • Road matching method based on fusion of probe vehicle movement track and electronic map
  • Road matching method based on fusion of probe vehicle movement track and electronic map
  • Road matching method based on fusion of probe vehicle movement track and electronic map

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Embodiment Construction

[0050] The three-stage method means that for a GPS positioning point, there are three possible matching results: matching to a node, matching to a road section, and temporarily undetermined. Its execution process is to first take the positioning point as the center and search with r as the radius, and judge whether the end point of the road segment to be matched in the nine-square grid where the point is located falls within the range, and if so, judge whether the end point is a node in the road network, If so, match the anchor point to the node, otherwise judge whether the anchor point can be matched to a road section in the road section to be matched, if so, the match is successful, otherwise mark the anchor point as temporarily undetermined. There are three stacks corresponding to the three-segment formula, which are the matched stack, the current matching stack, and the pending matching stack. Each time the matching is successful, the corresponding road segment is pushed in...

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Abstract

The invention relates to a road matching method based on the fusion of a probe vehicle movement track and an electronic map. The method is characterized in that an urban road network is divided by adopting a mesh division technology, so that the road section search complexity can be greatly reduced; a map matching method fusing a three-section matching concept of reference historical data and prospective data and an improved weight model concept is adopted for overcoming the weaknesses by acquiring strong points, the matching degree calculated by adopting the weight model is adopted as the evidence, and the three-section matching concept is used for making the decision, so that the reliability of the decision evidence and the reasonability of a result decision can be improved, and the relatively high matching precision can be achieved by virtue of the minimum complexity.

Description

technical field [0001] The invention belongs to a road matching method, in particular to a road matching method based on the fusion of a moving track of a floating car and an electronic map. Background technique [0002] Traffic is the lifeblood of a city. It directly affects the daily travel of urban residents. The nine-to-five office workers, business travelers from other places, and the quality of urban traffic will directly affect people's attitudes towards the city. The convenient and smooth traffic environment will undoubtedly increase the living comfort of residents and the love of wanderers from other places. However, with the rapid economic development and the rampant public and private cars today, it is extremely difficult to ensure a convenient transportation. Even though there is a famous saying "If you want to get rich, build roads first", the spatial resources of the city are obviously Limited, it is impossible to develop urban road construction without restri...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/30
CPCG01C21/30
Inventor 赵睿秦贵和董劲男王璇喆秦俊郭悦赵鹏远
Owner JILIN UNIV
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