主办:陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊:1976年

汽车实用技术 ›› 2023, Vol. 48 ›› Issue (9): 197-204.DOI: 10.16638/j.cnki.1671-7988.2023.09.039

• 综述 • 上一篇    

基于三维激光雷达的智能车辆 SLAM 技术研究

巴浩麟,马晓录*,吴立辉   

  1. 河南工业大学 机电工程学院
  • 出版日期:2023-05-15 发布日期:2023-05-15
  • 通讯作者: 马晓录
  • 作者简介:巴浩麟(1998—),男,硕士研究生,研究方向为智能车辆 SLAM 技术与导航,E-mail:bhl_1998@163.com。通信作者:马晓录(1964—),男,教授,研究方向为智能物流装备,E-mail: maxiaolu@haut.edu.cn。
  • 基金资助:
    国家自然科学基金资助项目(U1704156)。

Research on 3D Lidar Based SLAM for Intelligent Vehicles

BA Haolin, MA Xiaolu* , WU Lihui   

  1. School of Mechanical and Electrical Engineering, Henan University of Technology
  • Online:2023-05-15 Published:2023-05-15
  • Contact: MA Xiaolu

摘要: 智能车辆实现自主导航的必要条件之一是定位技术,目前基于三维激光雷达的同步定 位与建图(SLAM)技术是定位技术的主流方案。文章从三维激光 SLAM 的算法框架和关键 模块进行总结,具体讨论了扫描匹配、后端优化、闭环检测、地图构建等关键模块的常用算 法及改进;综述了几种开源的三维激光 SLAM,并对比了其优缺点;对在应用中激光雷达局 部点云稀疏、Z 轴的漂移以及动态对象引发的噪声影响等关键性问题进行了分析阐述;指出 了基于三维激光雷达的 SLAM 与深度学习相结合、多传感器融合是未来三维激光 SLAM 的发 展和研究方向。

关键词: SLAM 技术;扫描匹配;智能车辆;三维激光雷达

Abstract: Localization technology is one of the necessary conditions for intelligent vehicles to achieve autonomous navigation. At present, simultaneous localization and mapping (SLAM) based on 3D lidar is the mainstream solution of Localization technology. This paper summarizes the algorithm framework and key modules of 3D laser SLAM, and discusses the common algorithms of key modules such as scanning matching, back-end optimization, closed-loop detection, map construction, etc. Several 3D SLAM methods are reviewed, and their advantages and disadvantages are compared. The key problems in the application of lidar, such as local point cloud sparse, Z-axis drift and the influence of noise caused by dynamic objects, are analyzed and expounded. It is pointed out that the combination of 3D lidar based SLAM with deep learning and multi-sensor fusion will be the development and research direction of 3D laser SLAM in the future.

Key words: SLAM technology; Scan matching; Intelligent vehicle; 3D lidar