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Algorithm of connection matching of entry and exit lanes of crossing without lane lines

A technology of line crossings and no lanes, applied in the field of electronic map production, can solve the problems that the navigation system cannot meet the requirements of high-precision navigation and unmanned driving, and achieve the effect of ensuring balance, ensuring safety, and avoiding intersections.

Inactive Publication Date: 2016-05-04
WUHAN ZHONGHAITING DATA TECH CO LTD
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Problems solved by technology

[0002] With the application of high-precision navigation platforms and the gradual realization of unmanned driving, the road-level path planning of traditional navigation systems can no longer meet the requirements of high-precision navigation and unmanned driving.

Method used

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  • Algorithm of connection matching of entry and exit lanes of crossing without lane lines
  • Algorithm of connection matching of entry and exit lanes of crossing without lane lines
  • Algorithm of connection matching of entry and exit lanes of crossing without lane lines

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0050] Such as figure 1 As shown, the implementation of the present invention comprises the following steps after starting:

[0051] 1) Obtain the number of entry / exit lanes at the intersection without lanes, record the number of entry lanes as N, and the number of exit lanes as M.

[0052] 2) According to the size relationship between N and M, calculate the number of connections that need to be established between each entry and exit lane, and the symbol of the connection number is marked as D.

[0053] 2.1) When N is less than M, it is a narrow entry and wide exit situation, and the number of connections that need to be established from entering the lane to exiting the lane is calculated. Specific algorithm:

[0054] D=((M-1) / N)+1

[0055] 2.2) When N is greater than M, it is the case of wide entry and narrow exit, and the number of connections t...

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Abstract

The invention provides an algorithm of connection matching of entry and exit lanes of crossing without lane lines. The algorithm comprises the following steps of: acquiring the number of entry and exit lanes of the crossing without lane lines; judging whether the crossing is a wide entry and narrow exit crossing or a narrow entry and wide exit crossing or an entry and exit equaled crossing; calculating the number of exit / entry lanes needed to be connected with each entry / exit lane; and calculating a start number of the exit / entry lanes connected with one entry / exit lane. With the method, establishment of a connection relation between entry and exit lanes of the crossing without lane lines can be completed by a simple and high-efficiency algorithm.

Description

technical field [0001] The invention relates to the technical field of electronic map making, and in particular to an algorithm for calculating a reasonable exit lane when unmanned driving and advanced assisted driving cross an intersection area guided by no lane lines. Background technique [0002] With the application of high-precision navigation platforms and the gradual realization of unmanned driving, the road-level path planning of traditional navigation systems can no longer meet the requirements of high-precision navigation and unmanned driving. Path planning must be upgraded to the lane level, so a lane-level topological connection network must be established in the high-precision navigation map data. [0003] In the process of making high-precision maps, there are a large number of intersections without lane lines in the actual road conditions. Here, the lanes are disconnected. It is necessary to establish a connection relationship between the lanes entering the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06Q10/04
CPCG06F16/29G06Q10/047
Inventor 李非王军德罗跃军
Owner WUHAN ZHONGHAITING DATA TECH CO LTD
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