关键词： Conferences   Robots   Education   Tools   Programming profession   STEM   Art   Education   programming   robotics   science   technology   engineering   art   and mathematics (STEAM)  

摘要： Today's society is facing new challenges and opportunities that demand professional profiles specialized in problem solving, with the ability to innovate and exploit the possibilities offered by information and communication technologies (ICTs). Far from being a novelty, the term STEM was coined in the mid-1990s. From then until now, there are a multitude of initiatives focusing on working STEM education with students. In recent years, the use of the arts as an enhancer of the educational experience has been incorporated into STEM education. There has also been a focus on involving the student in the educational process. Despite this, few experiences have been detected in which parents are involved in the educational process. Throughout this work, it is shown the pilot experience which has been developed to motivate parents to be part of the learning process in science, technology, engineering, art, and mathematics (STEAM) subjects.

关键词： Manifolds   Sensitivity   Torque   Loading   Tactile sensors   Soft robotics   Sensor systems  

摘要： Robotic systems are becoming increasingly present in every aspect of our daily private as well as working environments. The more these systems enter into our spheres of action, the more they are intended to support humans in dangerous, dull and dirty tasks, and the more flexibility is expected from them. In order to prepare robotic systems for such duties, they need to be able to perceive their environment. In robotic systems, a perception of the environment can either be achieved through internal sensors, i.e., joint angle and torque sensors, or through external sensors, e.g., vision or tactile sensors. While the use of such internal sensors may seem advantageous because no additional system has to be added, the information that can be obtained from them is rather undifferentiated when we want to gather information about the environment. Thus, this information is in most cases augmented by external sensors. Considering exteroception, the most often used technology to analyze the environment is vision. However, due to general deficiencies of the system such as their dependence on lighting conditions and the necessary line of sight, the information accessible through vision alone [1] is not sufficient to accomplish differentiated manipulation tasks [2].

关键词： State quantization   Quantized feedback design   Predesignated performance guarantee   Nonholonomic mobile robots   Uncertain nonlinear dynamics  

摘要： This paper discusses a quantized feedback tracker design problem of nonholonomic mobile robots with uncertain nonlinear dynamics in a network environment with state and input quantization. Quantized state feedback information of mobile robots is only used for the tacker design. Compared with existing control approaches for uncertain nonholonomic mobile robots, the primary contribution of our study is to develop quantized-states-based low-complexity tracking and stability methodologies for ensuring the predesignated performance of tracking errors. A robust tracking scheme using quantized state variables is designed without any adaptive mechanisms to compensate for nonlinear dynamic uncertainties. The boundedness of the quantization errors of the closed-loop signals is derived from a theoretical lemma. Using this lemma, the closed-loop stability is analyzed with the predesignated performance guarantee of tracking errors in the Lyapunov sense. A robot simulation verifies the resulting theoretical tracking strategy. (C) 2021 Elsevier Inc. All rights reserved.

关键词： 机器人竞赛   多学科融合   课程思政   人工智能  

摘要： 人工智能及机器人技术在国内外高校已被列入本科生和研究生课程,高校大力发展符合国家战略发展需求的新型专业,着重培养一大批高科技人才,助力国家科技发展。在大学生创新创业各类活动中,机器人竞赛成为工科学生主流赛事之一,吸引了很多队伍竞技。机器人竞赛下分服务类、无人机类、仿真类等各类机器人,横跨计算机、电子信息、人工智能、自动化等多种学科知识体系,该文重点研究多学科融合的以赛促学和以学促赛的机器人教学模式。

关键词： 卓越工程师   机器人竞赛与实训   课程建设  

摘要： 根据“卓越工程师教育培养计划2.0”旨在培养学生的工程能力和创新能力的建设理念,课题组对“机器人竞赛与实训”进行了课程建设,采用了“以学生为中心”的教学理念和以工作任务为驱动的工程项目式教学模式,开发该课程的工程项目载体,构建该课程的过程化考核与评价方法。实施结果表明:学生综合平均成绩均在80分以上,学习效果明显提升;学习兴趣普遍提高;设计能力、动手实践能力、分析解决问题能力有所提高。

关键词： 可变线路   机器人   训练竞赛场地   坐标定位原理  

摘要： 在中小学综合实践课的机器人教学活动中,传统的机器人训练场地地图普遍采用喷绘印刷,其轨迹线路固定,学生长期面对单一轨迹地图极易产生懈怠心理。因此,有必要开发一种能随时变化的机器人训练场地地图,以便调动学生学习的积极性。利用坐标定位原理,采用PVC板、木工板、micro:bit开发板等材料制作可变线路机器人训练竞赛场地,可充分满足机器人教学训练的需要。

关键词： 综合实践教学   中学教师   全国冠军   机器人竞赛   科技辅导员   九年一贯制学校   科技之光   一所  

摘要： 董皓,济南育文中学综合实践教师、科技辅导员。工作15年来,他带领学生自主设计机器人,研发科技校本课程,用科技之光点燃了学生的科技梦想。济南育文中学是一所九年一贯制学校,董皓担任学校六年级、七年级的综合实践教学任务。15年间,董皓和学生们参加各级机器人竞赛活动800余场,荣获市级以上奖励500余项,取得了国际金牌7枚、银牌2枚、铜牌3枚、技术奖5项,国家级金牌36枚、银牌19枚,培养出8位世界冠军、20位全国冠军、6名"省少科院院士"、1名"齐鲁小名士"、3名"济南小名士"。

关键词： 森林防火   履带平台   机器人   Adams   动力学仿真  

摘要： 针对森林的复杂环境,为满足森林防火机器人履带平台的越障性能要求,本文提出一种基于椭圆定理的可变形履带平台。该履带平台通过摆臂的转动来调节履带形状,具有更好的越障性能和张紧能力。为充分了解履带平台的越障性能,在履带平台的运动机理分析基础上,对履带平台典型障碍进行动力学分析,得到越障过程的最大理论值。根据理论值结合林区实际情况计算,用Adams建立仿真平台,对攀爬高地及跨越沟壑的状态进行仿真实验,验证表明履带平台可攀爬200 mm高度台阶,跨越255 mm宽度沟壑,具有良好的越障性能。

关键词： MEMS mirror   micro-robotics   electrothermal actuation   LiDAR  

摘要： Light detection and ranging (LiDAR) has been widely used for airborne surveillance and autonomous driving. The ability of robotics or even micro-robotics can be drastically enhanced if equipped with LiDAR, but very light and small LiDAR must be used. Micro-robots have sizes close to birds or insects, and almost all existing LiDAR are too heavy and too large for them. In this work, a novel MEMS LiDAR, with its optical scanner separated from its base, is proposed and demonstrated. The scanner head will be carried by a moving micro-robot while the LiDAR base is fixed on the ground. There is a thin, flexible optical/electrical cable connecting the scanner head to the base. The scanner head consists of a MEMS mirror and a rod lens, which weighs only 10 g and measures under 4 cm long. The MEMS mirror has an aperture of 1.2 mm x 1.4 mm and can scan a field of view (FoV) of 9 degrees x 8 degrees. As the micro-robot and the optical scanner head moves with respect to the optical receiver, an IMU (inertial measurement unit) has been embedded in the scanner head to track the motion and an algorithm has been developed to reconstruct the true point clouds. The movable head LiDAR can acquire 400 points per second and detect targets up to 35 cm away. A micro-robot can carry the scanner head while it is moving, and the point clouds can be generated at the LiDAR base. This new LiDAR configuration enables ranging, mapping, tracking, and zoom-in scanning for micro-robots.

关键词： 关节电机   行星减速器   动力学仿真  

摘要： 关节电机是足式机器人核心部件之一,其动态响应直接影响着机器人的性能。其中的行星减速器属于精密机械传动机构,其传动精度与关键零件的变形密切相关。利用Adams建立了关节电机行星减速器刚柔耦合动力学仿真模型,模拟在启动过程中的瞬态输出特性。模型中对关键零件进行柔性化处理,设置各零件间的运动副约束,利用Hertz接触理论计算了行星轮与太阳轮、内齿圈的接触刚度系数。仿真结果表明,关节电机的动态特性与加速时间和惯性载荷密切相关,较大的加速时间与较小的惯性载荷有利于提高其动态性能。