Method for multi-factor automatic update of road space network

A space network and automatic update technology, applied in database update, special data processing applications, instruments, etc., can solve the problems of long data update time, poor data current performance, and heavy workload, so as to save manpower and material resources and achieve high matching efficiency , high accuracy effect

Active Publication Date: 2018-04-06
SOUTHEAST UNIV
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The global update method is to reprocess all data, because the existing data cannot be fully utilized, and each line of data needs to be reprocessed, which takes a long time to update the data; local update is based on the existing data to find out

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
  • Method for multi-factor automatic update of road space network
  • Method for multi-factor automatic update of road space network
  • Method for multi-factor automatic update of road space network

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0058] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

[0059] The invention provides a multi-factor automatic update method of road space network, which is based on new and old data, uses trial value method to determine the corresponding thresholds of area overlap ratio, direction angle and Hausdorff distance, and automatically finds out changes by running a program The newly added line data of road information in the network to be updated can only process the changed data, achieve the purpose of accurate and real-time dynamic update, and keep the digital network model consistent with the real network with maximum efficiency.

[0060] As the embodiment of the present invention is as follows:

[0061] (1) Data preparation and preprocessing, for the range of the road space network that needs to be updated (hereinafter referred to as the network to be updated), prepare data with road network...

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 discloses a method for multi-factor automatic update of a road space network. According to the method, the limitation of global updating and manual updating is avoided, processing of only changed data is achieved, the goal of accurate and real-time dynamic updating is achieved, and a digital network model and a real network are kept consistent most efficiently. The method includes the steps of performing data preparation and pretreatment; matching changed road information with a to-be-updated network, and searching newly-increased roads and rebuilt roads; performing matching inspection on possibly matched line entities, such as inspection of four factors which are area overlaying ratio, directional included angle, Hausdorff distance and semantic consistency; performing reversal matching on an original road space network and the changed road information, and deleting abandoned road section data. According to the method, road space network update efficiency and accuracy areimproved, and the road space network automatic update reliability is greatly improved.

Description

technical field [0001] The present invention relates to the research field of computer graphics theory and linear geographic element matching technology, in particular to the automatic update technology of geometric position and attribute data of linear geographic elements, especially to a multi-factor automatic update method for road space network. Background technique [0002] With the construction of road transportation infrastructure, the road network is constantly improving. The road space network model stored in the computer is the spatio-temporal data basis for traffic analysis, network research, road network planning and management. The road network model should be continuously updated with the construction of the actual road network to ensure the consistency of the geometric data and spatial topology of the road space network model with the actual network. [0003] The collection and maintenance of road space cyberspace data is usually completed by different units ...

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): G06F17/30
CPCG06F16/23G06F16/29
Inventor 蔡先华祁星张远庄敏
Owner SOUTHEAST 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