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A Method of Automatically Generating Double-Line Networks in GIS Single-Line Networks

A technology of automatic generation and line network, applied in the field of GIS road network, can solve the problems of long cycle, high production cost, limiting the production efficiency of road network, etc., and achieve the effect of low cost and short cycle

Active Publication Date: 2021-02-02
CHECC DATA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this kind of production process has high precision and accurate information, the production cost is high and the cycle is long, which limits the production efficiency of this road network

Method used

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  • A Method of Automatically Generating Double-Line Networks in GIS Single-Line Networks
  • A Method of Automatically Generating Double-Line Networks in GIS Single-Line Networks
  • A Method of Automatically Generating Double-Line Networks in GIS Single-Line Networks

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Embodiment

[0043] The invention adopts the GIS road data of the single line network model, and completes the automatic production of the double line road data through certain data processing.

[0044] The road data of single-line and dual-attribute mainly includes the node layer (Point type) and the road network layer (Polyline) of the single-line network. The node layer needs to contain the node ID field and the coordinate field. The id field is used to indicate the difference between different nodes. number difference. The coordinate field identifies the node's location; see figure 1 The A, B, C, and D nodes in the road network layer need to contain four fields, such as the number of forward lanes (CDS), the number of reverse lanes (RCDS), the starting node ID, and the ending node ID. The start node ID and end node ID are associated with the ID field of the node layer. See figure 1 AB, AC, AD, and AE sections in .

[0045] The concrete method of the present invention comprises the ...

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Abstract

The present invention relates to a kind of method that GIS single-line network automatically generates double-line network, comprises the following steps: 1) obtains the GIS road data of single-line network model, comprises node layer and road network layer data, and according to intersection position and The road position judges the intersection type and road type; 2) Determine the offset direction of the road network node and calculate the offset, form the road boundary of the double-line network, and generate the offset node of the road network node; 3) Make the offset node Curve interpolation is used to represent the driving path of the vehicle at the node of the road network, and finally generate a dual-line network. Compared with the prior art, the present invention has the advantages of low cost, short period, suitable for road maps with low accuracy requirements, and the like.

Description

technical field [0001] The invention relates to the field of GIS road networks, in particular to a method for automatically generating a dual-circuit network from a GIS single-circuit network. Background technique [0002] GIS road network is to visualize the real roads in the form of GIS data. The current mainstream road network models are single-line and dual-attribute node-link model (single-line network model for short), dual-line dual-attribute node-link model (double-line network model for short) and lane-level road network model. Among them, the mobile phone navigation road network generally adopts the single-line network model; the lane-level road network is generally used for assisted driving, unmanned driving and other scenarios. The dual-line network model is generally used to represent the different properties of the two traffic directions in the road scene, such as different road conditions and different traffic flows. [0003] The current dual-line network mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/34G06F16/29
CPCG01C21/3415
Inventor 吴杭彬瞿一航
Owner CHECC DATA CO LTD