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相关概念视频

Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

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GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
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相关实验视频

Updated: Jun 25, 2025

Robotic Sensing and Stimuli Provision for Guided Plant Growth
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改善复杂果园环境中的移动机器人的路径规划:连续双向快速RRT*算法.

Lei Ye1, Jin Li1, Pu Li1

  • 1School of Intelligent Engineering, Shaoguan University, Shaoguan, China.

Frontiers in plant science
|May 28, 2024
PubMed
概括
此摘要是机器生成的。

一个新的连续双向快速RRT* (CBQ-RRT*) 算法改善了非全方位移动机器人在果园中的障碍回避. 这种路径规划方法提高了效率和路径流性,减少了复杂环境中的错误.

关键词:
这是一种双向扩张.移动机器人 移动机器人果园环境 果园环境路径规划路径规划路径规划快速探索随机树的快速探索

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科学领域:

  • 机器人和自动化 机器人和自动化
  • 人工智能的人工智能
  • 农业工程 农业工程

背景情况:

  • 有效的避障路径规划对于在果园等复杂农业环境中的自主导航至关重要.
  • 现有的算法如单向快速RRT*和双向RRT (Bi-RRT) 对非全方位机器人的路径平滑性和效率有局限性.

研究的目的:

  • 开发一种先进的路径规划算法,即连续双向快速RRT* (CBQ-RRT*),用于在果园中的移动机器人的高效和顺的导航.
  • 通过引入优化扩展成本函数和CreateConnectNode方法来解决双树扩展中的曲问题,并提高路径质量.

主要方法:

  • 整合双向RRT (Bi-RRT) 和快速RRT*算法来创建CBQ-RRT*.
  • 关于扩建成本函数的建议,用于评估路径的平滑度和长度.
  • 实现CreateConnectNode优化以解决双树交叉点的路径不连续性.

主要成果:

  • 与单向快速RRT*相比,CBQ-RRT*在各种各样的果园布局和地形上表现出更高的效率.
  • 与Bi-RRT*相比,CBQ-RRT*实现了8.5%的平均路径长度减少和21.7%的最大转向角度减少.
  • 现场测试显示,与Bi-RRT*和Quick-RRT*相比,路径横向误差 (0.334 m) 显著改善.

结论:

  • CBQ-RRT*算法有效地克服了以前方法的局限性,为非全方位移动机器人提供了更平滑,更短的路径.
  • 拟议的算法显示了在复杂的农业环境中增强自主导航系统的巨大潜力.
  • 在具有挑战性的果园环境中,CBQ-RRT*为规划避障碍路径提供了强大的解决方案.