关键词： 中小学生   科技创新   湖北省   机器人   武汉市   青少年   竞赛   教育基地  

摘要： 2313年5月26日上午，第28届湖北省青少年科技创新大赛机器人竞赛（中夏杯）暨武汉市第十届中小学生机器人竞赛在武汉红心国防教育基地举办。本次活动由湖北省科技协会、湖北省教育厅、湖北省科技厅、共青团湖北省委等机构主办。

关键词： 油罐清洗机器人   运动学   动力学   仿真研究  

摘要： 油罐清洗机器人是一种针对油罐罐底油泥实施自动化清洗而研发的特殊机器人。通过建立适当坐标系,运用D-H参数法对其进行了运动学分析,得出末端执行装置位姿方程,运用拉格朗日方法求解得出其整体动力学方程。通过计算机仿真实验,验证了运动学方程和动力学方程的准确性,能够描述油罐清洗机器人的运动特性,在该机器人的运动控制和系统稳定性分析方面具有一定的参考价值。

关键词： whole-body movement   humanoid robot   inverse dynamics   human posture  

摘要： "An advanced robotics motion generation framework for inferring the organisation of human movements."Computer Methods in Biomechanics and Biomedical Engineering, 16(sup1), pp. 177–178

关键词： 福建省   机器人竞赛   科技辅导员   青少年  

摘要： 青少年机器人活动作为一项集电子、信息、自动控制知识为一体的益智类科技活动,深受广大青少年的喜爱。该文在分析近五年福建省机器人竞赛的组织管理、参赛队伍及获奖情况的基础上,探究活动存在的短板和不足,并结合福建省实际情况,从机器人教育普及、科技辅导员队伍建设、信息化管理等方面阐述推动青少年机器人竞赛活动发展的新途径、新方向。

关键词： 全地面起重机   塔臂工况   回转   机器人动力学   主臂强度  

摘要： 全地面起重机塔臂工况下回转起制动过程将对主臂产生较大的扭转冲击等附加动载荷作用,建立全地面起重机塔臂工况臂架系统力学模型,基于机器人动力学理论建立吊重摆振动力学方程,计算吊重在变幅平面和回转平面内的偏摆角,采用第四强度理论计算主臂应力。研究结果表明起动加速时间、吊重绳长对主臂强度有显著影响,不同的塔臂仰角和塔臂长度对主臂强度的影响程度不同。所得结论可为全地面起重机结构设计和现场操作控制提供参考。

关键词： reaching movement   spatial reference   humanoid robot   proprioceptive biases   sensory delays  

摘要： "Using the humanoid robotics framework for testing different plausible control architectures of human reaching movements."Computer Methods in Biomechanics and Biomedical Engineering, 16(sup1), pp. 175–176

关键词： 教育机器人   校本课程   学习评价  

摘要： 机器人教育以软件与硬件结合、实体和虚拟相结合。程序理论与实时检测相结合等鲜明的科技特色，在国内外各种竞赛活动的推动下，迅速发展和普及。本文尝试从小学机器人校本课程教学出发，从课程的学习能力评价原则、评价指标、评价架构建立三方面，探讨机器入学习评价模式的建立。

关键词： Passive walking   Gait analysis   Roll-over shape   Prosthetic foot   Bifurcation diagrams   Nonlinear dynamics  

摘要： The 'heel to toe' rolling contact has a great influence on the dynamics of biped robots. Here this contact is modelled using the roll-over shape defined in the local co-ordinate system aligned with the stance leg. The roll-over shape is characterised by six constants: forefoot, midfoot and hindfoot gains and length values. A piecewise parabolic polynomial constructed from these six values is able to match the realistic roll-over shape with continuous slope and variable curvature. The effect of these constants and the roll-over shape arc length has been studied on various gait descriptors such as average velocity, step period, inter-leg angle (and hence step length), mechanical energy. The bifurcation diagrams have been plotted for point feet and different gain values. The insight gained by studying the bifurcation diagrams for different gain and length values is not only useful in understanding the stability of the biped walking process but also in the design of prosthetic feet. The discovery of 'critical values' for the length and mass ratios for the inter-leg angle delta (and hence step length) bifurcation diagrams, or a 'critical value' for forefoot gain in the step period bifurcation diagram, is of particular interest as it would mean a constant step length or step period for a range of acceptable values of forefoot and hindfoot gains. The dependence of the horizontal roll-over shape length and hindfoot/forefoot gains on the actual stance leg angular velocity theta(s) and angular displacement (theta(s)) values along with the corresponding existence of critical values has also been demonstrated. (C) 2013 Elsevier Inc. All rights reserved.

关键词： Computer programming   Early childhood   Kindergarten   Robotics   Sequencing   STEM  

摘要： This paper examines the impact of programming robots on sequencing ability during a 1-week intensive robotics workshop at an early childhood STEM magnet school in the Harlem area of New York City. Children participated in computer programming activities using a developmentally appropriate tangible programming language CHERP, specifically designed to program a robot's behaviors. The study assessed 27 participants' sequencing skills before and after the programming and robotics curricular intervention using a picture-story sequencing task and compared those skills to a control group. Pre-test and post-test scores were compared using a paired sample t test. The group of children who participated in the 1-week robotics and programming workshop experienced significant increases in post-test compared to pre-test sequencing scores.

关键词： Robotics   Automation  

摘要： An introduction to the journal is presented in which the editor discusses the debate surrounding the use of robotics as a major economic enabler in the U.S.