Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Region-oriented offline map creation and location method

A technology of offline maps and positioning methods, applied in maps/plans/charts, special data processing applications, instruments, etc.

Inactive Publication Date: 2018-12-21
杭州拓深科技有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the data centers of many enterprises and institutions are only connected to the internal LAN, it is impossible to achieve positioning through the map API provided by the third-party map company

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
  • Region-oriented offline map creation and location method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] Such as figure 1 As shown, the region-oriented offline map creation and positioning method of the present invention selects a group of calibration points, that is, the pixel points of the regional plan and the GPS latitude and longitude information collected near the actual position of the corresponding pixel, aiming at the transformation of the latitude and longitude information and the plan , using Gaussian projection transformation and least square method to realize their transformation relationship.

[0027] Specific steps are as follows:

[0028] 1. Calibration

[0029] 1) Randomly select several eye-catching locations on the electronic plan, and record their pixel coordinates;

[0030] 2) Use a terminal device with a GPS module to collect the latitude and longitude information of the above-mentioned corresponding positions, and establish the corresponding re...

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 an offline map creation and positioning method oriented to a region range, comprising the creation and positioning of an offline map. The invention uses the plan map of the area range and the longitude and latitude information collected by the mobile device GPS, firstly, the information of longitude and latitude is transformed into plane coordinates by Gaussian projection,then a set of transformation coefficients are fitted by least square method through selecting a set of points (plane coordinates of Gaussian projection-pixel coordinates of plane map) to realize the formulated correlation between them. Finally, the correlation between GPS longitude and latitude coordinates and plane coordinates is realized, and offline positioning based on plane coordinates is realized.

Description

technical field [0001] The invention belongs to the field of offline maps, in particular to an area-oriented offline map creation and positioning method. Background technique [0002] At present, we have many excellent third-party map companies, such as Google, Baidu, AutoNavi, Tencent and other excellent companies. They all provide the download and positioning of offline maps for mobile phones, so that mobile users can still obtain longitude and latitude information through GPS to achieve offline positioning without network access. However, most of them do not provide ways to download and use offline maps for the computer version. [0003] In practice, there are many such requirements. Operators working in a certain area collect and save longitude and latitude information through the GPS module of the mobile device. After the job is completed, it is transmitted to the data center through the LAN to realize the playback of the job track to facilitate assessment and managem...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G09B29/00
CPCG09B29/005
Inventor 张轩铭王利强梁昆陈龙
Owner 杭州拓深科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com