重复的低加速度冲击对微电子机械惯性测量单元的态度估计的影响
Federico Allione1,2, Juan D Gamba1, Antonios E Gkikakis1
1Department of Advanced Robotics (ADVR), Istituto Italiano di Tecnologia, Genoa, Italy.
Frontiers in robotics and AI
|September 8, 2023
概括
腿式机器人运动的定期低加速冲击会导致微电子机械系统惯性测量单元 (IMU) 的显著漂移. 这一发现影响了机器人设计和控制,重复撞击后突出了潜在的姿态估计不准确性.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 传感器技术 传感器技术
- 机械电子学是什么意思 机械电子学
背景情况:
- 惯性测量单位 (IMU) 在航空航天,机器人和人类运动跟踪中对估计运动至关重要.
- 与轮式或空中车辆不同,腿式机动车辆涉及频繁的地面撞击和动态的飞行阶段.
- 这些动态运动会产生显著的垂直加速振荡,可能会影响传感器的准确性.
研究的目的:
- 调查周期性低加速度冲击对微机电系统 (MEMS) IMU 的态度估计的影响.
- 模拟跑步机器人经历的垂直运动.
主要方法:
- 将多个MEMS IMU暴露在4g,8g和16g的周期性低加速冲击中.
- 分析结果的态度估计在IMU数据中的偏移.
主要成果:
- 在测试的IMU的态度估计中观察到显著的偏移.
- 漂移的大小与应用的冲击水平相关.
结论:
- 腿式机器人运动期间的定期冲击可能会导致IMU中的实质性态度估计错误.
- 这项研究为机器人传感器选择和控制系统设计提供了关键的见解,为减轻或考虑传感器漂移的策略提供了信息.
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