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Method and equipment for automatically repairing road network connectivity

An automatic repair and connectivity technology, applied in the field of road network repair, can solve the problems of inaccurate repair and heavy workload, and achieve the effect of improving processing efficiency, improving accuracy and reducing working time

Active Publication Date: 2020-10-02
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and equipment for automatically repairing the connectivity of the road network in view of the problems of heavy workload and inaccurate repair in the existing manual way of repairing the connectivity of the road network

Method used

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  • Method and equipment for automatically repairing road network connectivity
  • Method and equipment for automatically repairing road network connectivity
  • Method and equipment for automatically repairing road network connectivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as figure 1 As shown, a method for automatically repairing road network connectivity includes the following steps:

[0051] S1: Import the original road network map that needs to be repaired, and obtain all lines;

[0052] S2: traverse all the lines, and perform connectivity judgment on the endpoints of the lines, and obtain all suspicious endpoints to be repaired;

[0053] S3: Repairing the lines at each of the suspicious endpoints on the original road network graph;

[0054] S4: Output the repaired road network map.

[0055] The connectivity judgment in the step S2 includes the following steps:

[0056] S21: Determine whether an endpoint of the line intersects with other lines; if not, proceed to step S22; if intersect, the endpoint is a normal endpoint, proceed to step S23;

[0057] S22: Make a circle with the endpoint as the center and the threshold length D as the radius, and judge whether the circle intersects with other lines; if it intersects, the endpo...

Embodiment 2

[0066] Such as figure 2 As shown, the present embodiment is the specific implementation steps of embodiment 1, comprising the following steps:

[0067] S1: traverse all the lines in the road network, take out the line L, and execute S2;

[0068] S2: Determine whether an endpoint A1 of the line L intersects with other lines, if not, go to S2, otherwise go to S12;

[0069] S3: Make a circle with the endpoint A1 as the center and the threshold length D as the radius, which is recorded as C1; the threshold length D is a preset value for judging whether the road network needs to be repaired, generally no more than 10 meters, or according to actual needs make settings;

[0070] S4: Determine whether the circle C1 intersects with other lines, if it intersects, the endpoint is a suspicious endpoint at this time, go to S5; otherwise, the endpoint is a common endpoint, go to S12.

[0071] Note: Suspicious endpoints are points where the endpoint of the line does not intersect with ot...

Embodiment 3

[0083] Such as Figure 8 As shown, a method for automatically repairing road network connectivity includes the following steps:

[0084] a: Import the original road network diagram that needs to be repaired, and obtain all nodes; the nodes are the endpoints of the line;

[0085] b: traverse all the nodes, and make a connectivity judgment on them, and obtain all suspicious nodes to be repaired;

[0086] c: Repair the line at each of the suspicious nodes on the original road network graph;

[0087] d: Output the repaired road network map.

[0088] The connectivity judgment in the step b includes the following steps:

[0089] b1: Judging whether the node intersects with other lines; if intersecting, the node is a normal node, and proceeds to the judgment of the next node; if not intersecting, proceeds to step b2;

[0090] b2: Make a circle with the node as the center and the threshold length D as the radius, and judge whether the circle intersects with other lines; if it inte...

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Abstract

The invention relates to the field of road network restoration, in particular to a method and equipment for automatically restoring connectivity of a road network. At present, a common road network repairing means is used for repairing connectivity in a manual mode, when the amount of data which is not communicated is large, the workload of the manual mode is large, time is consumed very much, theconnectivity is repaired in the manual mode, the problems that the workload is large, and repairing is not accurate and repeated enough exist, and the defects that the project progress is restricted,and normal project development is not facilitated exist. According to the method, all the nodes of the road network are traversed, the nodes needing to be repaired are found out, and then connectivity repair is carried out on the nodes, so that repeated calculation is greatly reduced, the processing efficiency is greatly improved, and the working time is shortened.

Description

technical field [0001] The invention relates to the field of road network restoration, in particular to a method and equipment for automatically repairing road network connectivity. Background technique [0002] With the development of the times, navigation and route planning have been integrated into the lives of ordinary people, and the existing road system is also very developed, but the data of the road system is not public. When you want to use the road system in a project, you need to spend hundreds of thousands or even millions of dollars to purchase data; at the same time, when constructing some projects, the existing road system does not necessarily include the desired road, so in practice In the process of application, new access roads and existing road systems will be artificially drawn in the software, but there may be connectivity errors between the drawn data, which may not be analyzed during path planning analysis or the analyzed data may have errors. The com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/215G06F16/29G06F30/18
CPCG06F16/215G06F16/29G06F30/18
Inventor 曹政国李致吴刘忠球赵兴忠陈华军古健艾桂友王永磊
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD