共查询到20条相似文献，搜索用时 86 毫秒
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针对实验器材数量不足、实验成本高等问题导致的实验教学质量下滑,构建虚实结合实验平台对提高实验教学质量意义重大。该实验平台采用B/S架构,在对实验平台工作流程分析的基础上,基于云服务技术,设计并实现了机器人虚拟结合实验平台的仿真与实物实验。所设计的实验平台实现了机器人的模式展示、拆解、写字、小物体抓取等功能,对学生深入了解机器人具有重要的价值,提升了机器人课程实验教学的质量。 相似文献
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将深度学习、机器视觉与机器人相结合,构建了平面无序件抓取实验系统.通过在SSD网络引入内卷积、特征金字塔等提高目标检测算法的检测性能与效率,算法参数减少60％.构建基于VGG16主干网络的细长类标准件姿态预测算法以引导机械手抓取;采用STM32单片机控制龙门式机械手,根据算法检测结果实现机械手的抓取动作.该抓取实验系统... 相似文献
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虚实结合的机器人实验教学平台可充分发挥仿真和实体机器人的优势。采用的实体机器人多为品牌机器人，存在成本高、占地大、上手慢、开放性差等问题。将虚实结合方案和低成本开源方案相结合，设计一种基于Matlab低成本开源机械臂的机器人实验教学平台。通过逐步实现机械臂对工件的抓取，加深学生对机器人学中关键知识点的理解。设计并实现单个定时器的6舵机同步驱动方法、基于标志点的简易手眼标定方法以及几何法的快速逆运动学计算方法，进一步提高运行效率降低经济成本。实验结果证实了机械臂抓取方法的有效性。平台具有成本低、便携、上手快、完全开源等特点。 相似文献
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针对工业机器人系统复杂、学习难度大等问题,设计了基于机器视觉的五子棋人机对弈实验教学平台。通过机器视觉实验,学生可以学习相机标定、棋子快速识别与定位的图像算法。通过对弈搜索算法实验,学生可以学习树状智能搜索算法的原理。最后进行机器人程序控制实验,了解机器人轨迹规划的基本原理,通过修改机器人程序可得到不同的机器人运动轨迹。利用开发的人机交互界面,可进行对弈实验测试。该实验达到了预期实验目的。 相似文献
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采用快速原型控制技术,搭建了一套电液多维力控并联机器人半实物仿真系统。利用该平台进行实验教学,可解决机械工程专业液压控制系统、机械控制工程基础以及机器人技术等课程理论脱离实践的教学难题。结合上述课程的理论知识以及相应工程案例,探索电液多维力控并联机器人在实验教学中的应用和实践。实验结果表明,基于该实验平台的实验教学,增强了研究生对相关理论知识的理解,提高了研究生实践能力,为机电液一体化专业课程教学提供了一种新颖的教学平台。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献