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国外仿人机器人发展概况 总被引:11,自引:0,他引:11
介绍了国外仿人机器人发展的特点,详细分析了日本、美国和韩国等国几种仿人机器人的主要技术及其技术指标.根据国外的样机设计,作者讨论了仿人机器人各部分自由度的选用,分析了仿人机器人传动和控制设计中的一些问题.就国外仿人机器人发展对中国的启示提出了看法. 相似文献
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集群机器人系统特性评价研究综述 总被引:1,自引:1,他引:0
集群机器人系统是群体智能的一个重要应用研究领域, 也是机器人系统未来发展的重要方向之一. 集群机器人系统特性评价是一个极具挑战性的关键技术与理论问题, 对于集群机器人系统的研究与发展具有重要意义. 首先, 给出了对集群机器人系统基本概念的理解, 并且从多种不同角度作出了分类. 其次, 梳理了多个关键的集群机器人系统期望特性; 在此基础上, 分别从评价标准、评价指标体系和评价方法三方面对已有集群机器人系统特性评价研究成果进行了比较全面的评述. 最后, 分析总结了当前集群机器人系统特性评价研究工作的不足, 并对未来发展方向进行了展望. 相似文献
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《Robotics and Autonomous Systems》2006,54(2):174-183
The Life in the Atacama (LITA) project seeks to develop technologies for robotic life detection and apply them to the investigation of the Atacama Desert. Its field investigation in 2005 will demonstrate highly autonomous robotic science and daily multi-kilometer traverses over several weeks. A key component is mission-level path planning, which combines large-scale route selection, path and activity timing, and predictive energy management. Its purpose is to yield high-level plans for locomotion, solar charging and hibernation. We describe this new level of robotic autonomy and illustrate its performance from the field experiments in 2003. 相似文献
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The accuracy of the motion control for robotic mechanisms will have an effect on their overall performance. Under the condition where the robotic end-effector carries different loads, the motions for each joint of robotic mechanisms change depending on different payload masses. Conventional control systems possess the potential issue that they cannot compensate the load variation effect. Adaptive control, especially the model reference adaptive control (MRAC), has therefore been put forward to handle the above issue. Adaptive control is generally divided into three categories, model reference, self-tuning and gain-scheduled. In this study, the authors only focus on the model-reference approach. To the best of the authors’ knowledge, very few recent research articles can be found in the area of MRAC especially for robotic mechanisms since robotic system is a highly nonlinear system, and it is difficult to guarantee the stability of MRAC in such system. This study presents a review and discussion on the MRAC of robotic mechanisms and some issues of MRAC for robotic mechanisms are also demonstrated. This study can provide a guideline for upcoming research in the field of MRAC for robotic mechanisms. 相似文献
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This paper presents a fully Bayesian way to solve the simultaneous localization and spatial prediction problem using a Gaussian Markov random field (GMRF) model. The objective is to simultaneously localize robotic sensors and predict a spatial field of interest using sequentially collected noisy observations by robotic sensors. The set of observations consists of the observed noisy positions of robotic sensing vehicles and noisy measurements of a spatial field. To be flexible, the spatial field of interest is modeled by a GMRF with uncertain hyperparameters. We derive an approximate Bayesian solution to the problem of computing the predictive inferences of the GMRF and the localization, taking into account observations, uncertain hyperparameters, measurement noise, kinematics of robotic sensors, and uncertain localization. The effectiveness of the proposed algorithm is illustrated by simulation results as well as by experiment results. The experiment results successfully show the flexibility and adaptability of our fully Bayesian approach in a data‐driven fashion. 相似文献
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AbstractThis document presents a resume of several robotic hands from 1983 to 2016, its aim is to cover this rapidly evolving field of robotics and provide relevant information about the designs and current developments. The characteristics of the hands are enlisted and compared in terms of weight, grasping power/load capacity, degrees of actuation, degrees of freedom and finger configuration. Some prosthetic hands are presented to show their similarities with the robotic ones. A clear design tendency is seen while the gap between merely robotic hands and prosthetic limbs closing. The final parts of this document expose the trends in design of robotic hands, human inspired or not. The design tends to be compliant providing high number of degrees of freedom achieving high dexterity but decreasing the number of actuators, these characteristics can provide robust performance. Finally, we suggest the standardisation on the development process of the robotic hands as most of them are meant to be used in household robots and human–robot interaction. 相似文献
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Rehabilitation robotics is a growing field where the study of human movement is one of the key topics. Mechanisms development in terms of analysis and synthesis in the field is relatively new, particularly in the case of parallel robotic mechanisms. This paper presents the background and details of current research into the use of parallel robotic mechanisms for rehabilitation of sprained ankles, and proposes a new device based on a parallel mechanism with a central strut.The paper investigates a new technique in motion analysis of ankle movement which is presented in an orientation image space and in that of a rehabilitation therapy, presents an approach of mechanism synthesis based on this analysis, and develops several parallel mechanisms with a central strut for ankle rehabilitation. This is then related to the analysis of the stiffness effect of the central strut in the platform-type mechanism and the stiffness matrix is decomposed with the part resulting from the central strut which supports ankle rehabilitation.In presenting this new research, the paper relates the study of mechanisms to that of rehabilitation robotics and presents a strong case in the new application of parallel robotic mechanisms. 相似文献
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Yoshiyuki Sankai Kiyoshi Fujiwara Kenichi Watanabe Hisashi Moriyama 《Artificial Life and Robotics》1998,2(4):162-169
The purpose of this research was to propose and develop a control method in the robotic and biomedical fields which is configured
by a robotic/biological simulator, an analytical control frame which has phase sequences, sensory feedback, and an artificial
central pattern generator (CPG) which is constructed by a recurrent neural network (RNN) and a genetic algorithm (GA). We
call such a controller a “HOJO-brain”, which means a supplementary brain for motion control. We applied this method in the
robotic and biomedical fields. In the robotic field, the HOJO-brain was applied to a 5-DOF legged-locomotion robot and a 32-DOF
humanoid simulation model consisting of antagonistic muscles. In the biomedical field, it was applied to animals as the FES
(functional electrical stimulation) controller. This FES control system with a HOJO-brain has the potential to give more effective
and emergent motion control to severely physically handicapped people such as quadraplegics. With computer simulations and
simple experiments using animals, we abtained performance indices which confirmed the fine adaptability and emergence for
motion control.
This work was presented, in part, at the Second International Symposium on Artificial Life and Robotics, Oita, Japan, February
18–20, 1997 相似文献