轨道农用车的路径跟踪控制方法基于滑动感知前视点偏移点的偏移点
Huanyu Liu1, Zhihang Han1, Jiaqin Yin1
1Institute of Modern Agricultural Equipment, Xihua University, Chengdu, China.
Frontiers in plant science
|January 21, 2026
概括
随轨的农业车辆现在可以使用一种新的滑动感知控制方法更准确地在复杂的地形上行驶. 这种方法显著减少了轨道滑动引起的路径跟踪错误,提高了稳定性和运营效率.
科学领域:
- 农业工程 农业工程
- 机器人技术 机器人技术 机器人技术
- 控制系统 控制系统
背景情况:
- 轨道农业车辆面临着轨道滑动的挑战,影响复杂农田的路径跟踪准确性和稳定性.
- 传统的几何跟踪算法在滑动条件下扎,需要先进的控制策略.
研究的目的:
- 为轨道式农业机械提出一种新的滑动感知前视点偏移路径跟踪控制方法.
- 为了提高轨道跟踪精度和在轨道滑行时的运动稳定性.
主要方法:
- 一个扩展的卡尔曼波器 (EKF) 融合了RTK-IMU和车轮速度数据,以实时估计滑动比率.
- 一个防滑的目标点偏移机制优化了使用改进的粒子群优化 (PSO) 算法的控制.
- 一个模糊控制器可自适应地调整前景距离,而低通波器则平滑速度.
主要成果:
- 模拟和现场实验表明,在严重的滑动条件下,横向跟踪误差显著减少.
- 与传统方法相比,现场测试显示最大横向偏差减少了高达78.1%,平均偏差减少了50.6%.
- 该方法确保了平滑的轨迹,并在柔软,高滑坡的地形上提高了稳定性.
结论:
- 拟议的滑动感应控制方法有效地提高了轨道农用车的路径跟踪精度和稳定性.
- 这种轻量级的控制框架为在复杂的农业环境中实现自主导航提供了实用解决方案.
- 该方法适用于自主导航和植物保护操作,提高整体效率.
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