Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for collecting and processing map data of micro-road network based on road marking point and road property

A road attribute and road marking technology, applied in the directions of road network navigators, measuring devices, instruments, etc., can solve the problems of high cost, many information interference items, poor portability, etc., to improve efficiency, save network traffic, and achieve high-precision maps. The effect of data update

Active Publication Date: 2020-01-17
SPEED SPACE TIME INFORMATION TECH CO LTD
View PDF10 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The data acquisition of the above-mentioned prior art has the following problems: 1) Multiple sensors are required for precise positioning of the vehicle, which is costly and is mainly suitable for self-driving vehicles, and has poor portability; 2) The data update efficiency is low, and the dynamics of the actual road cannot be reflected in time 3) There are many information interference items, and it is impossible to obtain accurate and comprehensive information of marking points on both sides of the road
For example, due to the existence of obstacles such as road greening trees, utility poles, and advertisements, it constitutes a serious interference to the image acquisition and laser point cloud acquisition of the acquisition vehicle, and the obtained data is noisy and poor in accuracy; and complex algorithms are required. The processing efficiency is low; 4) The road attribute factors in the riding or walking mode are not considered, which is not conducive to the planning of riding or walking paths
[0017] Therefore, due to the different requirements for map content and accuracy in different modes, there are many defects in the existing urban map data collection and update, especially the data collection involving the micro-road network, which needs to further refine and improve the road information collection method

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0114] A method for collecting and processing update data of an urban micro-road network map based on road marking points and road attributes, the steps of which are as follows:

[0115] S1: Based on the portable intelligent terminal and the existing road marking points of the micro-road network, collect the map data of the micro-road network based on the road marking points. The specific steps are as follows:

[0116] S1-1: Select a road on the map micro-road network as the work area, and use the vehicle-mounted intelligent terminal to perform position and image analysis of three adjacent marking points (for example, Bank of China, Hualian Supermarket, and Suning Store) on the roadside. and the name to obtain, where the name is obtained by manually entering keywords; upload the above three marker positions, images and names to the server for retrieval and query;

[0117] S1-2: After the server receives the uploaded point information data, the processing module performs the fo...

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 method for collecting and processing map data of a micro-road network by using a portable data collection intelligent terminal carried by a bicycle or a power-assisted vehicle. The intelligent terminal is in transmission connection with a server arranged on a nearby map collection vehicle device. According to the method, the data collection efficiency of a scene where amotor vehicle cannot collect data can be improved, and the labor intensity of a data collector can be reduced, so that micro-road network update data required by a high-precision map is provided efficiently and accurately at low cost; and particularly, a more reliable data basis is provided for map path selection in a riding or walking mode.

Description

technical field [0001] The invention relates to the technical field of map data collection, in particular to a method and system for collecting and processing map data of an urban micro-road network of road marking points and road attributes. Background technique [0002] At present, with the popularization of the application of electronic maps, more and more people download electronic maps to mobile terminals such as mobile phones for travel route planning. Even for familiar roads, they will open electronic maps for navigation planning before travel. Avoid congested roads or choose a closer road. With the development of map accuracy, in addition to public transportation and motor vehicle navigation, more and more electronic map suppliers have begun to provide navigation planning in multiple modes, such as walking mode, cycling mode and even electric vehicle and motorcycle mode. [0003] However, the disadvantage is that the maps used in different modes are basically the sa...

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): G01C21/34G01C21/36
CPCG01C21/3461G01C21/3476G01C21/3611G01C21/3629
Inventor 李俊朱必亮徐忠建
Owner SPEED SPACE TIME INFORMATION TECH CO LTD
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
Eureka Blog
Learn More
PatSnap group products