Identification method for turning prohibition properties of fork road in navigation data production tool

A technology for producing tools and navigation data, applied in the direction of road network navigator, etc., can solve the problems of being prone to errors, affecting the quality and efficiency of data production, increasing the workload of data editing, etc., to achieve the effect of improving quality and efficiency

Active Publication Date: 2012-06-13
SHENZHEN ROADROVER TECH
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AI Technical Summary

Problems solved by technology

This phenomenon is common in the production process of navigation data. Frequent modification prohibits turning to data records and aggregation node in

Method used

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  • Identification method for turning prohibition properties of fork road in navigation data production tool
  • Identification method for turning prohibition properties of fork road in navigation data production tool
  • Identification method for turning prohibition properties of fork road in navigation data production tool

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Example Embodiment

[0013] The identification method of the prohibited turning attribute of the fork in the navigation data production tool is realized with the aid of a computer keyboard and a mouse under the support of an electronic vector map with road traffic direction information. The important thing is: the navigation data An intermediate memory and an encoding circuit are added to the production tool, and the steps of the identification method include:

[0014] A. According to the InLink and OutLink marks of each road in the electronic vector map relative to the fork P, select a road to InLink, and perform counterclockwise rotation of the OutLink roads that intersect with the fork P 1-N serial number;

[0015] B. Set an N-bit binary number as the turning restriction code of the selected InLink road above. The digits of the binary number correspond to the serial number 1-N from the InLink road forbidden to turn to the OutLink road. The value of the code point corresponding to the outgoing road ...

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Abstract

An identification method for turning prohibition properties of a fork road in a navigation data production tool is realized by the aid of a computer keyboard and a mouse under the support of an electronic vector map with traffic directionality information. During navigation data production, recording of turning prohibition data of the fork road is unrelated to Link ID (identification), and Main Node ID, Sub Node ID and Sub Link ID of the fork road, so that data production quality and efficiency are greatly improved.

Description

Technical field [0001] The invention belongs to the field of navigation data production, in particular to a method for identifying the attribute of forbidding turning of a fork in a navigation data production tool. Background technique [0002] At present, in the production of well-known navigation data, we call the "fork intersection" formed by one or more bidirectionally drawn roads as "aggregate node intersection". The aggregate node intersection is actually an area (such as figure 1 (Shown), this area can realize the vehicle to complete the steering action according to certain rules, but in the navigation data production, in order to maintain the shape of the intersection data, and to ensure the connectivity of the road topology data in the navigation data, we will At the intersection of the aggregation node, virtual "pathways" come out, denoted as "Link", the part of these links in the intersection area of ​​the aggregation node is denoted as "SubLink", and some nodes will be...

Claims

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Application Information

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IPC IPC(8): G01C21/26G01C21/34
Inventor 张维军
Owner SHENZHEN ROADROVER TECH
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