Road positioning method and device, computer equipment and storage medium

A positioning method and road technology, applied in the field of navigation, can solve the problems of navigation errors, low road positioning accuracy, road positioning errors, etc., and achieve the effect of improving accuracy

Pending Publication Date: 2022-03-22
禾多科技(北京)有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a matching error occurs in the road positioning, it will cause subsequent navigation errors
[0004] The related road positioning method obtains the global vehicle position through GNSS (Global Navigation Satellite Syste...

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
  • Road positioning method and device, computer equipment and storage medium
  • Road positioning method and device, computer equipment and storage medium
  • Road positioning method and device, computer equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0110] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0111] In one embodiment, such as figure 1As shown, a road positioning method is provided, and this embodiment is illustrated by applying the method to a terminal. It can be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and through The interactive realization of terminal and server. In this embodiment, the method includes the following steps:

[0112] Step 102, according to the location information corresponding to the vehicle at the current moment, match a plurality of first matching ro...

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 road positioning method and device, computer equipment and a storage medium. The method comprises the following steps: matching a plurality of first matching roads from a map library according to corresponding position information of a vehicle at the current moment; determining observation probability distribution of the vehicle on a plurality of first matching roads corresponding to the position information according to road information collected by the vehicle through a plurality of sensors at the current moment, and adding the observation probability distribution corresponding to the current moment to a probability distribution set; determining a state transition matrix corresponding to the current moment and the previous moment according to relevance between a plurality of first matching roads corresponding to the current moment and a plurality of second matching roads corresponding to the previous moment, and adding the state transition matrix to a state transition matrix set; constructing a hidden Markov chain model according to the probability distribution set and the state transition matrix set; and determining the road where the vehicle is located at the current moment through a hidden Markov chain model. By adopting the method, the road positioning precision can be improved.

Description

technical field [0001] The present application relates to the technical field of navigation, in particular to a road positioning method, device, computer equipment and storage medium. Background technique [0002] With the increasingly powerful vehicle navigation functions and the increasing use of high-precision maps, vehicle navigation systems have been able to provide accurate road information and navigation prompts, including but not limited to road speed limits, locations of surrounding gas stations and parking lots, etc. [0003] In vehicle navigation systems, road positioning (or called road-level positioning) is the most basic function. Road positioning can determine that the vehicle is currently on a certain road in the road network through certain algorithms and data. With the development of road infrastructure and cities, urban road networks have become increasingly complex, posing great challenges to road positioning. When a matching error occurs in the road po...

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): G01C21/30G01S19/42G01S13/86G06F17/18G06K9/62G06V20/58G06V10/74
CPCG01C21/30G01S19/42G01S13/86G06F17/18G06F18/22
Inventor 雷戈航骆沛倪凯
Owner 禾多科技(北京)有限公司
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