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Map framing method and system based on road side unit, equipment and storage medium

A roadside unit and map technology, applied in geographic information databases, special data processing applications, structured data retrieval, etc., can solve the problems of redundant road information and inapplicability, achieve concise map information, reduce bandwidth burden, and ensure timeliness effect

Pending Publication Date: 2021-05-14
迪爱斯信息技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This framing method is not suitable for map framing in the V2I scene, because the roadside unit broadcasts to the vehicle the map within the communication service range of the roadside unit, and the distribution of the roadside unit is irregular, and according to the communication Scenes and bridge-tunnel slopes are distributed along the road network. In special cases, the direction of the road should also be considered, and only a single-directional map is broadcast.
In addition, what the roadside unit broadcasts to the vehicle is generally the road section that is connected to the road section that the vehicle is currently driving. The traditional framing method will carry a lot of redundant road information that is not related to the current road section.
Therefore, the traditional map framing method is not suitable for V2I scenarios

Method used

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  • Map framing method and system based on road side unit, equipment and storage medium
  • Map framing method and system based on road side unit, equipment and storage medium
  • Map framing method and system based on road side unit, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]Such asfigure 1 As shown, this embodiment provides a way of road-side unit map sharing method, including:

[0047]S1: When there is a road node that is not marked attributed road side units, the labeled road node is attributed to the road side unit, and sets the road node as a starting node;

[0048]S2: Travel the downstream node of the departure node, and mark the downstream node satisfying within the preset maximum distance or not belonging to other road side units belongs to the road side unit;

[0049]S4: When there is no road node without marking the home side unit, the map sharing data is generated according to the road node tag results, and returns to S1.

[0050]In the traditional map, a rectangular display or latitude is generally used, and the map is cut into a fixed-size rectangular area or an approximate trapezoidal area, but the map transmission method cannot meet the actual needs of the vehicle network, on the one hand, the road side unit To the vehicle broadcasting the map ...

Embodiment 2

[0055]Such asfigure 2 As shown, this embodiment provides a way of road-side unit map sharing method, including:

[0056]S1: When there is a road node that is not marked attributed road side units, the labeled road node is attributed to the road side unit, and sets the road node as a starting node;

[0057]S2: The downstream node of the departure node is trailed to the downstream node satisfying or not in the preset maximum distance or not belonging to other road side units belongs to the road side unit; the traversal is based on a deep traversal method;

[0058]S3: When there is a road node that is not marked attributed road side unit, the road side unit closest to the road node is obtained, and the road node is marked as a starting node;

[0059]S4: When there is no road node that is not marked attributed road side units, the map sharing data is generated according to the road node tag results, and returns to S1;

[0060]In Example 1, there is a case, that is, although all road side units have su...

Embodiment 3

[0068]Such asimage 3 As shown, this embodiment provides a way of road-side unit map sharing method, including:

[0069]S1: When there is a road node that is not marked attributed road side units, the labeled road node is attributed to the road side unit, and sets the road node as a starting node;

[0070]S2: Travel the downstream node of the departure node, and mark the downstream node satisfying within the preset maximum distance or not belonging to other road side units belongs to the road side unit;

[0071]S3: When there is a road node that is not marked attributed road side unit, the road side unit closest to the road node is obtained, and the road node is marked as the starting node and returns to S2;

[0072]S4: When there is no road node that is not marked attributed road side units, the map sharing data is generated according to the road node mark;

[0073]S5: When there is a change in the state of the road side unit, all the home flags of the road nodes that are attributed to the road si...

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Abstract

The invention discloses a map framing method and system based on a road side unit, equipment and a storage medium, and the method comprises the steps: marking a road node closest to the road side unit to belong to the road side unit when there is a road node which is not marked to belong to the road side unit, and setting the road node as a starting node; traversing downstream nodes of the starting node, and marking the downstream nodes which are within a preset maximum distance or do not belong to other road side units to belong to the road side units; and when the road nodes of which the road side units are not marked to belong do not exist, generating map framing data according to a road node marking result. The method and system have the technical effects that each road node is classified to the corresponding road side unit equipment, so that the map range corresponding to each road side unit equipment is divided, map division is carried out, simple map information is realized, and the bandwidth burden in the Internet of Vehicles information interaction process is reduced.

Description

Technical field[0001]The present invention relates to a map of the map, and more particularly to a road-side unit map sharing method, a system, a device, and a storage medium.Background technique[0002]V2X is a general term for cars and external wireless information exchange techniques, in the LTE-V2X communication mode, in the link type, including V2V, V2I, V2P, and V2N. Where V2I is the information exchange technology link of the vehicle unit (OBU, OnBroad Unit) and the road side unit (RSU, ROAD SIDE UNIT); one of the important messages in V2I communication scene is that the road side unit is broadcast to the vehicle broadcast local area. Maps, including intersection information, road segment information (LINK), and connection information between roads (NODE). Since the road side unit and the vehicle are used by the network mode (via the communication mode through the base station), the bandwidth limit of this vacant communication requires the map message to be as thin as possible,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/29
CPCG06F16/29
Inventor 田占海宋平超周赵云邱祥平雷霆钟波宋志豹庄菲菲王聚全张巍张东东董良
Owner 迪爱斯信息技术股份有限公司
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