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

Barrier identification method and system of laser radar

A technology of obstacle identification and laser radar, which is applied in radio wave measurement system, satellite radio beacon positioning system, electromagnetic wave reradiation, etc., can solve the problem of undetectable obstacle type, and achieve fast speed and high recognition accuracy Effect

Active Publication Date: 2018-06-12
SHANGHAI ALLYNAV TECH CO LTD
View PDF9 Cites 95 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large number of high-quality samples are required for training, and it is impossible to detect obstacle types that do not appear in the training set

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
  • Barrier identification method and system of laser radar
  • Barrier identification method and system of laser radar
  • Barrier identification method and system of laser radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] figure 1 A flow chart of a laser radar obstacle recognition method provided by an embodiment of the present invention, such as figure 1 As shown, the method includes: S1, obtaining the original point cloud data collected by the lidar, the position data collected by the global navigation satellite system GNSS, and the attitude data collected by the inertial measur...

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 provides a barrier identification method and system of a laser radar. The method comprises that S1) original point cloud data, position data and attitude data are fused to obtain fused point cloud data; S2) the fused point cloud data is divided into multiple fused point cloud data segments according to the time sequence, and ICP registering is carried out on point cloud in each fusedpoint cloud data segment to obtain superposed point cloud data; S3) point clouds of each group of superposed point cloud data segment are clustered to obtain candidate barriers, and static information of the candidate barriers is extracted; and S4) according to the static information of the candidate barriers, static and dynamic barriers are identified from the candidate barrier, and dynamic information of the dynamic barrier is extracted. A graph can be made needless of using offline data of the laser radar, the method and system are suitable for detecting barriers in different complex application environments, the identification precision is high, and the speed is high.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of laser radar, and more specifically, to a laser radar obstacle recognition method and system. Background technique [0002] Obstacle detection technology is a key technology to ensure the safe operation of mobile platforms such as unmanned vehicles and robots. Traditional obstacle detection methods are mainly based on millimeter-wave radar, ultrasonic, infrared, stereo vision and other sensors, but their shortcomings are obvious. The detection range of millimeter-wave radar is directly restricted by frequency band loss, and the accuracy is not high. Ultrasonic waves are highly divergent, unable to accurately measure small-scale distances, and interfere with each other. Infrared thermometry is sensitive to ambient temperature changes. Stereo vision is based on binocular color images, which are strongly affected by light. [0003] LiDAR obtains point cloud information of the surroun...

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): G01S17/93G01S17/02G01S19/03
CPCG01S17/86G01S17/93G01S19/03
Inventor 张漫季宇寒李世超曹如月苗艳龙李寒李民赞
Owner SHANGHAI ALLYNAV TECH CO LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com