基于图形编程技术的服务机器人人机交互系统的研究

人机交互技术是服务机器人中的一项关键技术。本文就人机交互系统的概念、研究现状进行了阐述。结合HRDY服务机器人介绍了基于图形编程的人机交互系统设计思想，分析了图形编程与直接操作人机交互方式、面相对象程序设计方法之间的联系。给出了一种具体的人机交互界面。     

双臂移动机器人三维仿真与离线编程系统的研究

文章介绍了一种双臂移动机器人三维仿真与离线编程系统。用户通过图形编程界面对机器人进行任务规划,在三维仿真环境中预览和分析规划结果,最后可将优化程序下载到真实机器人中以进行控制。系统运行于RT-Linux平台,采用Java3D实现三维仿真,能实现多机器人机制。目前该系统支持日本安川公司研制的SmartPal双臂移动机器人。     

基于面向对象的机器人离线编程和图形仿真系统的研究

介绍了机器人离线编程的主要特点；分析了PUMA560机器人的作业和行为特点；针对原系统存在的不足，提出并开发了一个基于面向对象的离线编程和图形仿真系统。该系统提供了友好的图形用户界面，用OpenGL进行了机器人及其工作环境的三维图形仿真。     

基于PLC和触摸屏的SCARA机器人控制系统设计

对实验室里闲置的二手SCARA机器人进行改造,采用PLC与触摸屏重新构建了机器人控制系统。上位机由PC机和触摸屏组成,互相通信的两台PLC构成系统下位机。介绍了该机器人硬件系统的工作原理及其组成;对系统软件设计进行了解析,其中重点介绍了人机交互界面的设计;最后对该机器人系统的现场调试进行了阐述。     

一种水下机器人的水面平台控制系统设计

针对水下机器人进行水下检测时的实时控制和监控问题,对水下机器人的推进器结构、运动方式、通讯方式、机体状态显示方式、运动控制方法等方面进行了研究,对水下机器人实现高效水下检测所需的各功能需求进行了归纳,提出了一种基于Lab VIEW的ROV水下机器人的水面平台控制系统,利用实验水池对水下机器人的人机交互界面和摄像头拍摄图像进行了测试。研究结果表明,该系统能实时监测水下机器人的各项性能数据,能够实现通讯连接、机体状态显示、运动控制等多项功能,实时控制响应迅速,实时监控效果好。     

基于图像处理的机器人控制系统的研究设计

针对高空幕墙清洗强度大、效率低及存在安全隐患等问题,设计了一种基于STM32和LPC4300的清洗机器人控制系统。首先提出了以电动推杆、伺服电动机和真空吸盘为基础的系统控制方案;其次,为了提高清洗机器人的智能化水平,提出了以图像传感器OV9715作为图像采集单元和以LPC4300作为图像处理器的机器人视觉控制系统;然后,针对机器人在清洗过程中的图像识别问题,提出了基于HSI颜色空间的图像识别方法;最后,对清洗机器人进行了人机交互界面的设计。测试结果表明,该清洗机器人控制系统具有操作简单、控制灵活及实时性高等特点,具有良好的应用前景。     

基于Labview织物悬垂性测试及三维重建系统

文章介绍了一种基于Labview图形图像处理技术的织物悬垂性测试及三维重建系统。阐述了测试系统的功能及其在Labview中的编程实现．通过CCD摄像头采集织物悬垂图像，对图像进行处理和边缘检测，得到织物悬垂边缘点坐标数据。对数据进行矫正，计算得到织物的悬垂参数指标，实现了织物悬垂测试的自动化。在本系统中，利用Labview中3D—Graph显示功能实现了织物悬垂形态的三维重建，为后续对织物三维悬垂形态的研究提供了依据。利用虚拟仪器开发出的测试系统不仅具有良好的人机交互界面，且具有今后可随需求改变而对系统进行灵活的调整和扩充。     

机器人离线编程语言HRL及其开发环境

介绍机器人离线编程语言HRL及其开发环境。作为机器人离线编程与仿真系统HOLPSS的主要子系统，HRL实现了对一般4～6自由度机器人的离线编程，形成了基于微机的通用机器人语言。HRL语言系统结合HOLPSS的图形仿真系统，构成完善的离线编程与仿真环境，避免了文本编程与图形编程的弊端。论述HRL语言的数据类型及其操作、控制结构、轨迹规划、示教集成和通用性问题，并给出对PUMA560机器人的编程及结果仿真，仿真结果表明HRL语言系统是机器人程序快速生成的有力工具。     

一种五轴联动机器人运动学建模与仿真研究

探讨在VC＋＋6．0集成编程环境下，调用OpenGL实现机器人的建模与仿真。对一种五轴联动机器人首先建立几何模型，对其正逆运动学问题进行分析求解，然后建立友好人机交互界面，对机器人示教再现过程进行模拟，最终实现让机器人走空间直线路径的轨迹规划仿真。     

车丝机视觉机器人上下料系统仿真设计

以石油套管接箍车丝机视觉机器人上下料系统为研究对象,利用UG和RobotStudio软件建立了接箍车丝机视觉机器人自动上下料系统仿真模型.利用Halcon图像处理软件对抓取工件进行中心定位,并开发了人机交互界面.设计了机器人专用上下料夹具,创建系统Smart动态组件,添加了I/O信号实现设备通讯.编写机器人离线仿真程序,完成机器人柔性上下料系统仿真和优化.仿真结果表明,设计的仿真系统实现了机器人视觉精准抓取工件柔性上下料功能.     

Minimal Realization of Linear Graph Models for Multi-physics Systems

An engineering system may consist of several different types of components,belonging to such physical"domains"as mechanical,electrical,fluid,and thermal.It is t...     

On the Relation of Load to Average Gap in the Contact Between Surfaces with Longitudinal Roughness

A computer simulation model for the contact between longitudinally-oriented rough surfaces has been formulated. This model closely duplicates the actual surf ace contact deformation behavior by taking into account the elastic interactions between the asperities. There were no assumptions made about the shapes, or any deformation behavior of the asperities, except for their obeying the laws of elasticity. The plastic deformations on the high asperity peaks were taken into account by setting a ceiling on their contact pressures at the material hardness value. The simulations used real surface profiles which were digitized from unworn circumferentially ground steel surfaces. Each pair of these profiles was mathematically combined to form an equivalent rough profile pressing against an infinitely rigid flat and having the appropriately adjusted elastic modulus. A total of 28 different pairs of profiles were used in the simulations. Each contacting pair was subjected to 30 different load levels and the local contact pressures and deformations were calculated. The contact simulations yielded some important mathematical relationships between parameters, such as the real area of contact, average gap, and average asperity load through statistical curve fitting. Two analytical functions were generated to relate the average load to average gap and the real area of contact to load.     

三绕组变压器的双绕组等效建模及在Matpower中的应用

针对实际电网存在着大量的三绕组变压器,但国际上一些著名商业软件,如BPA仿真软件、Matpower这一权威潮流计算开源软件,均只提供双绕组变压器模型,限制了其在具有三绕组变压器的电力系统中的应用的问题,潮流计算是自主开发的电力系统各种应用软件的核心模块,因此依托国际权威开源程序进行二次开发,是一种较好的选择。对Matpower要求的数据格式进行了归纳,对变压器的一般的等值电路及带理想变压器的等值电路和带标幺值的等值电路进行了分析研究,提出了三绕组变压器转换为双绕组等效模型的建模方法,使得原先只适应双绕组变压器的潮流计算软件可以适用于三绕组变压器电网的潮流计算;最后以Matpower软件为例进行了案例计算,并用PSASP仿真软件进行对比验证。研究结果证明,所提出的建模方法是有效的。     

Quantum Cooperative Robotics and Autonomy

The intersection of Quantum Technologies and Robotics Autonomy is explored in the present paper.The two areas are brought together in establishing an interdisci...     

电站锅炉模糊风险评价方法研究与应用

针对电站锅炉风险等级评价问题,将模糊综合评价技术应用到电站锅炉风险等级评价中。开展了电站锅炉失效影响因素及模糊评价因素的重要程度分析,建立了一套科学合理适于在线评价的电站锅炉风险评价体系,提出了模糊综合评价技术与改进的模糊层次分析法相结合的模糊风险评价方法,利用改进的模糊层次分析法计算了指标体系中各层指标权重。对某一台电站锅炉的实际运行工况影响子因素进行了模糊风险评价,采用模糊合成算子进行模糊综合运算得到电了站锅炉运行工况影响子因素的评价向量。研究结果表明:电站锅炉的运行工况影响子因素的风险评价等级为第6级,失效可能性等级为小,该电站锅炉运行工况良好。     

考虑进油孔有限长滑动轴承油膜力的近似解析解

针对具有进油孔的有限长滑动轴承油膜力求解问题,采用变分原理和分离变量法,求得了有限长滑动轴承油膜压力分布的近似解析表达式。将油膜压力分布的近似解析表达式在油膜存在区域上进行积分,即得到了油膜力。将提出的计算有限长滑动轴承油膜力方法与无限长轴承模型、有限元方法的计算结果进行了比较,发现了提出的方法与有限元方法的计算结果很接近。最后,研究了进油孔位置和进油压力对油膜存在区域、油膜力等的影响,研究结果表明进油孔位置和进油压力对油膜存在区域和油膜力有较大的影响。     

交通荷载作用下桥梁结构参数识别方法

应用动力节点加载法,将作用在桥梁上的交通荷载转化为等效节点荷载,再用两步构造法识别结构物理参数.第1步,用Newmark-β方法变换结构运动方程,并用结构的加速度响应求得变换空间内的位移、速度和加速度响应;第2步,基于最小二乘原理,构造出变换空间内求解结构参数的递推式,进行结构物理参数识别.数值模拟结果表明,在交通荷载作用下,该方法能够快速、准确地进行桥梁结构参数识别.     

INTEGRAL EQUATION METHOD＇S APPLICATION IN HOLE-EDGE STRESS OF COMPOSITE MATERIAL PLATE WITH DIFFERENT SHAPED HOLES

The strength of composite plate with different hole-shapes is always one of the most important but complicated issues in the application of the composite material. The holes will lead to mutations and discontinuity to the structure. So the hole-edge stress concentration is always a serious phenomenon. And the phenomenon makes the structure strength decrease very quickly to form dangerous weak points. Most partial damage begins from these weak points. According to the complex variable functions theory, the accurate boundary condition of composite plate with different hole-shapes is founded by conformal mapping method to settle the boundary condition problem of complex hole-shapes. Composite plate with commonly hole-shapes in engineering is studied by several complex variable stress fimction. The boundary integral equations are founded based on exact boundary conditions. Then the exact hole-edge stress analytic solution of composite plate with rectangle holes and wing manholes is resolved. Both of offset axis loadings and its influences on the stress concentration coefficient of the hole-edge are discussed. And comparisons of different loads along various offset axis on the hole-edge stress distribution of orthotropic plate with rectangle hole or wing manhole are made. It can be concluded that hole-edge with continuous variable curvatures might help to decrease the stress concentration coefficient; and smaller angle of outer load and fiber can decrease the stress peak value.     

RLS and LMS blind adaptive multi-user detection method and comparison in acoustic communication

RLS and LMS blind adaptive multi-user detection algorithm and multi-user detector was proposed to solve the problem of multi-user signal detection problem encountered in underwater acoustic communication networks.In simulation analysis,RLS and the LMS blind adaptive multi-user detector were designed and tested for synchronous and asynchronous multi-user communication process.The results of SIR comparison and MMSE comparison show that,both of the two methods can realize blind adaptive detection when any user change in multi-user communication,during this process,the training communication sequences are not needed.The RLS algorithm has about 5 dB higher in SIR compared with LMS algorithm,and the convergence velocity of RLS algorithm is also higher than LMS algorithm when the communication users change.RLS algorithm has better ability in multi-user detection than that of LMS algorithm,and it has great attraction and guiding significance for solving the problem of multiple access interference(MAI) in multi-user communication.     

Short-Term Relay Quality Prediction Algorithm Based on Long and Short-Term Memory

The fraction defective of semi-finished products is predicted to optimize the process of relay production lines, by which production quality and productivity ar...