arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1405.4450cs.RO
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基于实验的仿人机器人推力恢复研究

Study of Humanoid Push Recovery Based on Experiments

Robotics and AI Lab, IIIT Allahabad(阿拉哈巴德印度信息技术学院机器人与人工智能实验室);IIIT Allahabad(阿拉哈巴德印度信息技术学院)

Vijay Bhaskar Semwal, G. C. Nandi

摘要:

人类在一定程度上可以从Push up中进行协商和恢复。推动恢复能力随着年龄的增长而增长(儿童的推动恢复能力比成人差),并且它是基于学习。例如,摔跤运动员比普通人有更好的推压恢复,然而,我们不知道反应性推压恢复的机制。我们试图通过几个实验来了解人类的学习机制。实验的受试者被选为右撇子和左撇子。从后面诱导推,闭上眼睛观察运动动作,以及睁开眼睛观察基于学习的反应性行为。重要的观察表明,左撇子和右撇子的人谈判推动不同(相反的方式)。本研究描述了一些细节的实验和分析的结果,主要是从关节角度的变化(包括踝关节和髋关节)作为扰动的表现。在通过高阶多项式平滑捕获的数据后,我们将它们馈送到我们的模型中,该模型是利用倒立摆的物理特性开发的,并将其配置为我们实验室中Webot仿真框架中的主题代表。在每种情况下,模型也可以从相同范围的扰动的推动恢复,这证明了模型的正确性。因此,该模型现在可以提供更大的洞察力,推动恢复机制,并可用于确定推动恢复策略的人形机器人。本文认为,推送恢复是软件工程问题,而不是硬件问题。

英文摘要:

Human can negotiate and recovers from Push up to certain extent. The push recovery capability grows with age (a child has poor push recovery than an adult) and it is based on learning. A wrestler, for example, has better push recovery than an ordinary man. However, the mechanism of reactive push recovery is not known to us. We tried to understand the human learning mechanism by conducting several experiments. The subjects for the experiments were selected both as right handed and left handed. Pushes were induced from the behind with close eyes to observe the motor action as well as with open eyes to observe learning based reactive behaviors. Important observations show that the left handed and right handed persons negotiate pushes differently (in opposite manner). The present research describes some details about the experiments and the analyses of the results mainly obtained from the joint angle variations (both for ankle and hip joints) as the manifestation of perturbation. After smoothening the captured data through higher order polynomials, we feed them to our model which was developed exploiting the physics of an inverted pendulum and configured it as a representative of the subjects in the Webot simulation framework available in our laboratory. In each cases the model also could recover from the push for the same rage of perturbation which proves the correctness of the model. Hence the model now can provide greater insight to push recovery mechanism and can be used for determining push recovery strategy for humanoid robots. The paper claimed the push recovery is software engineering problem rather than hardware.

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。

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