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Lane matching and positioning method and device based on high-precision map, equipment and medium

A positioning method and high-precision technology, which is applied in the direction of measuring devices, road network navigators, navigation, etc., can solve the problems of low matching positioning accuracy and unsuitable matching positioning, and achieve the effect of improving efficiency and accuracy

Active Publication Date: 2022-04-26
华砺智行(武汉)科技有限公司
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Problems solved by technology

[0005] In view of this, it is necessary to provide a high-precision map-based lane matching positioning method, device, equipment and medium to solve the problems in the prior art that are not suitable for matching positioning at intersections and have low matching positioning accuracy. question

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  • Lane matching and positioning method and device based on high-precision map, equipment and medium
  • Lane matching and positioning method and device based on high-precision map, equipment and medium
  • Lane matching and positioning method and device based on high-precision map, equipment and medium

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0058] It should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this disclosure illustrate operations implemented in accordance with some embodiments of the present invention. It should be understood that the operations of the flowcharts may be performed out of order, and steps that do not have a logical context may be performed in reverse order or simultaneously. In addition, those skilled in the art may add one or more o...

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Abstract

The invention provides a lane matching and positioning method, device and equipment based on a high-precision map and a medium, and the method comprises the steps: obtaining the high-precision map, and determining a plurality of lane interval surfaces and the lane information of each lane interval surface from the high-precision map; obtaining a current vehicle position point of the vehicle based on a differential global positioning system; determining a target interval plane set where the current vehicle position point is located from the plurality of lane interval planes based on the current vehicle position point, wherein the interval plane set comprises at least one target interval plane; and determining a target lane where the current vehicle position point is located from the at least one target interval plane based on the lane information. According to the invention, the accuracy and efficiency of vehicle matching and positioning are improved.

Description

technical field [0001] The present invention relates to the technical field of high-precision map matching, in particular to a high-precision map-based lane matching and positioning method, device, equipment and medium. Background technique [0002] High-precision positioning and high-precision map matching have always been hot topics in the field of autonomous driving. Being able to accurately locate the lane where the vehicle is located and its relative position on the lane is the basis for subsequent path planning, traffic warning, traffic control and other services. [0003] In the prior art, there are two ways to match the high-precision positioning and the high-precision map. One way is to find a line closest to the high-precision positioning point and match it with the high-precision map. Another way is to use the hidden Markov method for matching, that is, to achieve matching through inference of probability. [0004] The existing technology has the following probl...

Claims

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Application Information

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IPC IPC(8): G01C21/30G01C21/34
CPCG01C21/30G01C21/3407
Inventor 蔡雨伦吴则刚邱志军任学锋安德玺
Owner 华砺智行(武汉)科技有限公司
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