Automatic method for incremental updating and topological connectivity maintenance of overpass

An incremental update, overpass technology, applied in the direction of database update, structured data retrieval, special data processing applications, etc., can solve the problem of difficult to meet the automatic update processing of overpass data.

Pending Publication Date: 2021-08-27
CENT SOUTH UNIV
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing incremental update methods for spatial data mainly involve the identification and extraction of road ne...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic method for incremental updating and topological connectivity maintenance of overpass
  • Automatic method for incremental updating and topological connectivity maintenance of overpass
  • Automatic method for incremental updating and topological connectivity maintenance of overpass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0086] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0087] What should be explained at first is that the automation method of the overpass incremental update and its topology connectivity maintenance provided by the present invention is built in the controller or computer, so as to be able to realize the automatic update processing of vector data; In addition, "A" described below i ” is the ground state of the i-th ground state, “A i s " and "A i e "Respectively represent the ground state object A i The starting and ending points of "V Ai " means A i attribute value; "A j " is the jth increment, "A j s ""A j e " and repr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a spatial data updating processing method, and discloses an automatic method for incremental updating and topological connectivity maintenance of an overpass, which comprises the following steps of: (1) acquiring incremental data of the overpass; (2) identifying the incremental data and the type of the flyover in the ground state to be updated: dividing the flyover in the incremental data into a separated flyover and an interchange flyover according to whether a ramp exists or not, and further identifying the specific type of the separated flyover based on attribute semantic matching; identifying the specific category of the interchange based on the number of ramps and the number of nodes in the ramp plane topological structure; analyzing and summarizing the spatial change type of the overpass according to the change of the planar topological structure of the overpass in the updated data source; and (3) according to the identified specific category and spatial change type of the flyover, performing automatic updating and topological consistency maintenance by combining a compiled incremental updating processing algorithm and rule. According to the invention, the automation of overpass increment updating is realized.

Description

technical field [0001] The invention relates to a spatial data update processing method, in particular to an automatic method for an overpass incremental update and its topology connectivity maintenance. Background technique [0002] The overpass is the main body of the overpass, a structure that connects different parts of the entire overpass and combines several crossing roads in plane and space. It is a hub that communicates and organizes traffic at different levels and in different directions throughout the overpass, and is the core element of the current urban road network. one. [0003] With the accelerating process of urban construction, changes such as new construction, reconstruction, expansion, and collapse of overpasses occur from time to time. Therefore, it is necessary to update the overpass data in time in urban traffic services. [0004] However, the existing incremental update methods for spatial data mainly involve the identification and extraction of road ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F16/23G06F16/29
CPCG06F16/23G06F16/29
Inventor 周晓光赵变利侯东阳
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap