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提出了可定量评价遥控作业系统力觉临场感程度的指标函数,以此导出基于最佳力觉临场感的一种新的无源控制算法。实验表明该算法保证了系统在通讯时延下的稳定性和操作者的正确感知。 相似文献
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临场感遥操作机器人综述 总被引:2,自引:0,他引:2
本文分别综述了视觉临场感遥操作机器人系统、力觉临场感遥操作机器人系统、触觉临场感遥操作机器人系统、运动觉临场感遥操作机器人系统及时延对临场感遥操作机器人系统的影响问题。提出了临场感遥操作机器人技术是一门多传感器、多信息融合的人机交互技术,并指出了其今后的发展方向及研究重点。 相似文献
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虚拟现实力觉临场感遥操作机器人系统的稳定性 总被引:1,自引:0,他引:1
具有良好的可操作性,又能确保系统稳定性是解决力觉临场感遥操作机器人系统时延问题的根本。本文阐述了采用Popov超稳定性理论分析并研究虚拟现实力觉临场感遥操作机器人系统的稳定性问题是行之有效的,并给出了其分析方法,指出Popov超稳定性与无源稳定性理论是条件一致的。实验显示本文所给出的方法的有效性。本文的论述对于系统的设计极具价值。 相似文献
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力觉临场感机器人系统中环境动力学模型的研究 总被引:1,自引:0,他引:1
通过对力觉临场感机器人系统中环境的动力学研究,提出了分段描述环境动力学特征的观点,并进一步讨论了不同工作区中环境的动力学模型,分析了不同作业方式下,动力学的变化情况,阐述了在该系统中,环境的等效阻抗具有非线性,时实性,对系统的稳定性分析,控制算法和虚拟环境技术中的虚拟力觉反馈的准确再现具有重要意义。 相似文献
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为了实现良好的力觉临场感系统,在保证系统稳定性的基础上,提高操作透明性是其中的关键.通过对力-位置型力觉临场系统控制结构的透明性分析,提出了一种变增益力-位置型控制结构,通过改变从端的控制增益,来实现良好的透明性.并且还建立了一个单自由度的力觉临场感实验系统进行了实验研究,实验结果表明,这种控制结构在保证系统稳定的基础上实现了良好的控制透明性. 相似文献
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将Internet技术引入到力觉临场感遥操作系统是目前一个具有广阔应用前景的研究方向。由此,针对基于Internet力觉临场感遥操作系统所面临的变时延稳定控制问题,提出了一种基于波积分传输的无源控制算法。经过仿真,证明本算法可保证系统的无源性,并获得较好的操作性。 相似文献
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力觉临场感机器人系统是一个存在通信时延的非线性耦合MIMO系统,因此,直接对其进行远程遥控非常困难。为了解决这个难题,首先运用了逆系统方法将从机械手线性化,并将其解耦成若干个伪线性SISO子系统;同时假设遥控过程中的输入通信通道和反馈通信通道的时延时间都为已知常数,从而将通信时延和伪线性系统作为复合被控对象;最后对每个SISO子系统分别设计了Smith预估器。仿真试验结果证明了该控制方法的有效性。 相似文献
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Machine Intelligence Research - Teleoperation systems allow the extension of human capabilities to remote-control devices by providing the operator with conditions similar to those at the remote... 相似文献
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VR-Based Teleoperation for Robot Compliance Control 总被引:3,自引:0,他引:3
Robots governed by remote human operators are excellent candidates for work in hazardous or uncertain environments such as nuclear plants or outer space. For successful teleoperation, it is important to let the operator feel physically present at the remote site. When the telerobotic system is used to execute compliance tasks in which simultaneous control of both position and force may be demanded and inevitable contact with environments is encountered, information about the interactions between the robot manipulator and the environment are especially crucial for the operator to make proper decisions. This paper proposes a VR-based telerobotic system for such compliance tasks. The proposed system provides both visual and haptic information. A local intelligence controller, capable of surface tracking and force regulation, is equipped on the robot manipulator to tackle the time-delay problem usually present in teleoperation and to share control load with the operator. The proposed telerobotic system is developed in a virtual environment due to recent gains in the capabilities and popularity of virtual reality to generate realistic telepresence. Experiments based on the surface-tracking and peg-in-hole compliance tasks demonstrate the effectiveness of the proposed system. 相似文献
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Bo You Jiayu Li Liang Ding Jiazhong Xu Weihua Li Kaixin Li Haibo Gao 《Journal of Intelligent and Robotic Systems》2018,91(3-4):583-602
With the widespread use of multi-legged robots in various applications, new challenges have arisen in terms of designing their control systems, one of which is posed by the multiple degrees of freedom of the robotic legs. This paper proposes a novel method for the bilateral teleoperation control of a hexapod robot by using a semi-autonomous strategy. In this teleoperation system, the body velocities of the slave robot and the displacements of the master robot are mapped to each other. The angular velocities of the joints of the legs rely on independent planning to achieve a horizontal movement. A controller is designed based on the difference between the expected velocity and the actual velocity of the body, and the difference is fed back to the operator in the form of haptic force. Therefore, the transparency of the control system is guaranteed by increasing the damping compensation both in the master and slave robots. In addition, the stability of the bilateral teleoperation control system of the hexapod robot is guaranteed by passivity theory, and the proposed method is verified by conducting semi-physical simulation experiments. 相似文献