Road matching method, road matching apparatus and vehicle-mounted map acquisition system

A matching method and matching device technology, which are applied to road network navigators, navigation calculation tools and other directions, can solve the problems of low accuracy rate and large error of road matching algorithm, and achieve the solution of large error, easy implementation and improvement of matching efficiency. Effect

Active Publication Date: 2017-07-21
NAVINFO
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Problems solved by technology

[0008] In view of this, the present invention provides a road matching method, device and vehicle-mounted map collection system, which can solve the problem that the road matc

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  • Road matching method, road matching apparatus and vehicle-mounted map acquisition system
  • Road matching method, road matching apparatus and vehicle-mounted map acquisition system
  • Road matching method, road matching apparatus and vehicle-mounted map acquisition system

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[0064] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the accompanying drawings and optional embodiments.

[0065] The road matching method of the embodiment of the present invention combines multiple algorithms such as probability statistics, road network search, and weight calculation, which can greatly improve the matching accuracy rate, and solve the problem that the current map navigation road matching accuracy rate is not high.

[0066] Such as figure 1 As shown, a road matching method proposed in an embodiment of the present invention includes the following processing steps:

[0067] Step 101: Obtain the data regularly uploaded by the positioning system, and convert the data uploaded by the positioning system into positioning data in a pre-saved vector map, which contains pre-collected road information.

[0068] Here, when converting the d...

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Abstract

The invention provides a road matching method, a road matching apparatus and a vehicle-mounted map acquisition system, and relates to the field of map making. In the prior art, the existing matching accuracy is not high, and the high accuracy requires a lot of data learning. A purpose of the present invention is to solve the problems in the prior art. The road matching method comprises: acquiring the regularly upload data of a positioning system, and converting the data uploaded by the positioning system into the positioning data in a vector map; according to the positioning data at the current moment, determining the current positioning position, and acquiring the road information within a preset range using the current positioning position as the center as a first set; according to the road matching information determined at the previous moment, searching the road information associated with the determined road matching information in a vector map road network as a second set; according to the first set and the second set, acquiring candidate road matching information; and acquiring the weight value corresponding to each candidate road matching information according to a weight algorithm, and acquiring the road matching information at the current moment. With the technical scheme of the present invention, the matching accuracy is increased, and the extensive data learning is not required.

Description

technical field [0001] The invention relates to the technical field of map making, in particular to a road matching method, device and vehicle-mounted map collection system. Background technique [0002] In the car navigation system, due to the influence of the GPS (Global Positioning System, Global Positioning System) signal and the accuracy of the vector map, the positioning of the navigation car on the road is often not in the middle of the road, resulting in the wrong matching of the survey line and the road. High accuracy of road matching and precise positioning. At present, there are three main solutions: first, use high-precision navigation equipment to improve the accuracy of GPS signal positioning; second, improve the accuracy of vector maps; third, improve the road matching algorithm . [0003] At present, the above-mentioned first and second methods are greatly affected by objective reasons. Even if the accuracy of GPS signal positioning and vector map accuracy c...

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Application Information

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IPC IPC(8): G01C21/20G01C21/30
CPCG01C21/20G01C21/30
Inventor 夏华林
Owner NAVINFO
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