arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.07726cs.RO
收藏

高度变化环境下长期LiDAR-based定位的鲁棒性和精度实验评估

An Experimental Evaluation of Robustness and Precision for Long-term LiDAR-based Localization in Highly Changing Environments

LS2N, Laboratoire des Sciences du Numérique de Nantes, Centrale Nantes and CNRS(南特数字科学实验室、南特中央理工学院与法国国家科学研究中心)

Salvador Dominguez, Gaëtan Garcia, Vincent Frémont, Arnaud Hamon

摘要:

在开发基于非GPS的自动驾驶汽车定位系统时,最困难的挑战之一是环境的变化。基于激光雷达的系统通常试图将最后获得的测量结果与先前记录的该地区地图相匹配。如果现有的地图没有随着时间的推移而更新,则很有可能这些措施与环境的匹配程度不够,导致车辆无法跟踪其位置。在本文中,我们提出并分析实验结果的鲁棒性和精度的地图匹配定位系统在一定的时间内在以下三种情况下:(1)没有任何更新的初始地图,(2)更新地图的车辆移动和(3)地图更新,考虑到周围的结构标记为“固定”,这是不同的对待。测试的环境是一个繁忙的停车场,这确保了从一天到下一天的剧烈变化。通过将使用地图计算的位置与由实时动态GPS系统提供的位置进行比较来获得精度。实验结果显示,当在工作区域上使用固定结构时,即使在23天后仍保持稳定的约6cm的定位误差。

英文摘要:

One of the hardest challenges to face in the development of a non GPS-based localization system for autonomous vehicles is the changes of the environment. LiDAR-based systems typically try to match the last measurements obtained with a previously recorded map of the area. If the existing map is not updated along time, there is a good chance that the measures will not match the environment well enough, causing the vehicle to lose track of its location. In this paper, we present and analyze experimental results regarding the robustness and precision of a map-matching based localization system over a certain period of time in the following three cases: (1) without any update of the initial map, (2) updating the map as the vehicle moves and (3) with map updates that take into account surrounding structures labeled as "fixed" which are treated differently. The environment of the tests is a busy parking area, which ensures drastic changes from one day to the next. The precision is obtained by comparing the positions computed using the map with the ones provided by a Real-Time Kinematic GPS system. The experimental results reveal a positioning error of about 6cm which remains stable even after 23 days when using fixed structures on the working area.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑