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2015 IEEE International Conference on Technologies for Practical Robot Applications (TePRA)最新文献

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Automated bin picking system for randomly located industrial parts 随机定位工业零件的自动拣箱系统
C. Martínez, Remus Boca, Biao Zhang, Heping Chen, S. Nidamarthi
Bin picking has been a research topic for years because of the challenges in image processing, robot motion planning and tool system. However, much of the existing work is not applicable to most real world bin picking problems because they are too simplistic or not robust enough for industrial use. In this paper, we developed a robust random 3D bin picking system by integrating the vision system with the robotics system. The vision system identifies the location of candidate parts, then the robot system validates if one of the candidate parts is pickable; if a part is identified as pickable, then the robot will pick up this part and place it accurately in the right location. An ABB IRB2400 robot with an IRC5 controller was chosen for picking up the parts. A 3D vision system was used to locate the parts. Experimental results demonstrated that the system can successfully pick up randomly placed parts in an industrial setting. This system provides a practical and robust solution for the industrial applications that require 3D random bin picking.
由于图像处理、机器人运动规划和工具系统等方面的挑战,垃圾箱拾取一直是一个研究课题。然而,许多现有的工作并不适用于大多数现实世界的捡桶问题,因为它们过于简单或不够健壮,无法用于工业用途。本文将视觉系统与机器人系统相结合,开发了一种鲁棒的三维随机拣货系统。视觉系统识别候选零件的位置,然后机器人系统验证其中一个候选零件是否可拾取;如果一个零件被识别为可拾取的,那么机器人将拾取该零件并将其准确地放置在正确的位置。选择了带有IRC5控制器的ABB IRB2400机器人来拾取零件。采用三维视觉系统对零件进行定位。实验结果表明,该系统可以成功地拾取工业环境中随机放置的零件。该系统为需要三维随机拣箱的工业应用提供了一个实用而强大的解决方案。
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引用次数: 26
Dynamic end target part conveyance using an autonomous morphing surface 基于自主变形曲面的末端目标部件动态传输
M. Sinclair, I. Raptis
Large-Scale Actuator Networks (LSANs) are a rapidly growing class of electro-mechanical systems. A prime implementation of LSANs in the industrial sector is distributed manipulation. Some distributed manipulators include: vibrating plates, arrays of air jets, and mobile multi-robot teams. This paper examines an autonomous morphing surface that reconfigures itself using an array of linear actuators to translate an object. The cooperative behavior of the network outweighs the limitations of the individual single Degree of Freedom (DOF) actuators, allowing the mechanism to form complex configurations to convey the object. A detailed derivation of the kinematics and limitations of an arbitrary multi-cell surface is given. The allowable actuators alignments of the LSAN determine the available control resources and the total DOF of the surface. Simulation results combined with the actual implementation to the prototype illustrate the advantage of this technology over standard static feeders.
大规模致动器网络(lsan)是一种快速发展的机电系统。lsan在工业领域的主要实现是分布式操作。一些分布式机械手包括:振动板、空气射流阵列和移动多机器人团队。本文研究了一个自主变形表面,它使用一组线性致动器来转换对象。网络的合作行为超越了单个自由度(DOF)执行器的限制,允许机构形成复杂的配置来传递物体。给出了任意多单元曲面的运动学和局限性的详细推导。LSAN允许的致动器对中决定了可用的控制资源和表面的总自由度。仿真结果结合样机的实际实现说明了该技术相对于标准静态馈线的优势。
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引用次数: 0
Robot-assisted smartphone performance testing 机器人辅助智能手机性能测试
T. Kanstrén, Pekka Aho, Arttu Lämsä, Henar Martín, Jussi Liikka, Miska Seppanen
This paper describes experiences and lessons learned in applying an approach of using a physical robot for testing overall smartphone device performance based on user profiles. The process consists of capturing user actions, abstracting them to usage profiles, transforming these into test models, and generating test cases from the models. The goal is to support performance testing of touch screen devices and applications in a realistic test environment. To achieve this, the tests are based on real-world generated user profiles and executed using a real physical robot, simulating the actual user. Our performance testing targets different attributes of performance such as response times, power and resource usage, and software/hardware aging. Use of different hardware and software configurations in the test scenarios is considered. This work has been performed in close collaboration with industry partners in robotics provider and user industries.
本文描述了应用基于用户配置文件使用物理机器人测试智能手机设备整体性能的方法所获得的经验和教训。该过程包括捕获用户操作,将其抽象为使用概要文件,将其转换为测试模型,并从模型生成测试用例。目标是在真实的测试环境中支持触摸屏设备和应用程序的性能测试。为了实现这一点,测试基于真实世界生成的用户配置文件,并使用真实的物理机器人执行,模拟实际用户。我们的性能测试针对不同的性能属性,例如响应时间、电源和资源使用以及软件/硬件老化。在测试场景中考虑使用不同的硬件和软件配置。这项工作是与机器人供应商和用户行业的行业合作伙伴密切合作进行的。
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引用次数: 8
Torque and contact force analysis of Ski-Type walking for humanoid robots 仿人机器人滑橇式行走力矩及接触力分析
Hongfei Wang, Yuan F. Zheng
In our previous work, we introduced a new gait for humanoid robots called Ski-Type walking to improve stability performance for rough terrain walking. By the arms holding two canes to assist walking, the humanoid robot benefits from enlarged stability margin. With canes and feet touching the ground, a closed-chain system is formed where force/torque distribution among the canes and feet is not unique. We formulate and analyze both external and internal forces/torques in SkiType walking at its initial posture to determine the strategy for achieving optimal force/torque distribution. The result will enable our future study is designing dynamic gaits which specify not motion trajectories of the joints but also torques to according a desired criterion.
在我们之前的工作中,我们为类人机器人引入了一种新的步态,称为Ski-Type walking,以提高崎岖地形行走的稳定性。人形机器人通过手臂握住两根手杖辅助行走,从而获得了更大的稳定裕度。当手杖和脚接触地面时,形成一个封闭的链系统,手杖和脚之间的力/扭矩分布不是唯一的。我们制定并分析了SkiType在初始姿态下行走时的外部和内部力/扭矩,以确定实现最佳力/扭矩分配的策略。这一结果将使我们未来的研究能够设计出既指定关节运动轨迹又指定扭矩的动态步态。
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引用次数: 1
Practical applications of the R2P embedded framework for robot rapid development 实际应用中R2P嵌入式机器人框架快速发展
M. Matteucci, M. Migliavacca, Andrea Bonarini
Rapid Robot Prototyping (R2P) is an open source HW/SW framework providing components for the rapid development of robotic applications. R2P framework components reuse and easy integration is obtained through an embedded real-time publish/subscribe middleware which allows distributed control loops to be set up in a flexible way. R2P aims at increasing hardware and software reuse while reducing integration time. In this paper we present the R2P framework detailing its architectural design and an example of robot platform developed with R2P. We also briefly discuss the flexibility of the approach and the easiness of reuse of its components.
快速机器人原型(R2P)是一个开源的硬件/软件框架,为机器人应用程序的快速开发提供组件。通过嵌入式实时发布/订阅中间件实现R2P框架组件的可重用性和易于集成,该中间件允许以灵活的方式建立分布式控制循环。R2P旨在增加硬件和软件的重用,同时减少集成时间。本文详细介绍了R2P框架的体系结构设计,并给出了一个利用R2P开发机器人平台的实例。我们还简要讨论了该方法的灵活性及其组件的易于重用性。
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引用次数: 2
Enhanced performances for cable-driven flexible robotic systems with asymmetric backlash profile 具有非对称侧隙轮廓的缆索驱动柔性机器人系统的增强性能
Thanh Nho Do, T. Tjahjowidodo, M. Lau, S. Phee
Cable-conduit mechanism (CCM) or tendon-sheath mechanism (TSM) is widely used in many flexible robotic systems such as prosthetic hand robots, rehabilitation robots, and surgical robots because it offers efficient transmission of forces/torques from the external actuator to the end effector with light weight and high flexibility. However, the accurate position control is challenging in such mechanism due to friction and backlash-like hysteresis between the cable and the conduit. In this paper, a new control approach is proposed to enhance the trajectory tracking performances of the CCM using in flexible robotic systems. Unlike current approaches for the CCM in the literature, the proposed scheme considers the position transmission of the CCM as an approximation of backlash-like hysteresis nonlinearities without requiring the exact values of model parameters and their bounds. Online estimation of unknown system parameters are also established. In addition, the designed controller can adapt to any changes of the cable-conduit configuration and it is stable. The results of the proposed control techniques have been experimentally validated on a real flexible robotic system using a flexible endoscope. Experimental validations show substantial improvements on the performances of position tracking for the use of CCM regardless of the arbitrary changes of the cable-conduit configurations.
电缆导管机构(Cable-conduit mechanism, CCM)或肌腱鞘机构(肌腱鞘机构,TSM)具有重量轻、柔韧性高的特点,能有效地将力/扭矩从外部执行器传递到末端执行器,被广泛应用于假肢机器人、康复机器人、外科手术机器人等柔性机器人系统中。然而,由于电缆和导管之间的摩擦和反弹样滞后,这种机构的精确位置控制具有挑战性。为了提高柔性机器人系统中CCM的轨迹跟踪性能,提出了一种新的控制方法。与文献中目前的CCM方法不同,该方案将CCM的位置传输视为类反弹迟滞非线性的近似值,而不需要模型参数及其边界的确切值。建立了未知系统参数的在线估计方法。此外,所设计的控制器能够适应电缆导管结构的任何变化,且稳定性好。所提出的控制技术的结果已经在一个实际的柔性机器人系统上进行了实验验证。实验验证表明,无论电缆导管结构的任意变化,使用CCM的位置跟踪性能都有很大改善。
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引用次数: 9
sDOMO — A simple communication protocol for home automation and robotic systems 用于家庭自动化和机器人系统的简单通信协议
Marcel-Titus Marginean, Chao Lu
Today's market for domotic systems is dominated by proprietary communication protocols incompatible with each other. This not only prevents engineers from building highly integrated home automation and domestic robotic systems, but keeps prices artificially high due to a lack of competition in the market since the customers have to restrict their choices to components compatible with the system already deployed. In this paper, we propose a communication protocol for fully integrated domotic systems running on top of house network, protocol which is simple enough to accommodate as peers microcontroller based sensors but scalable enough to handle a house wide distributed computer vision system for domestic robot assisted living. Based on a house centered philosophy, the protocol is putting emphasis on privacy and protection of the residents.
当今的国内系统市场被彼此不兼容的专有通信协议所主导。这不仅阻碍了工程师构建高度集成的家庭自动化和家用机器人系统,而且由于市场上缺乏竞争,客户不得不将选择限制在与已部署的系统兼容的组件上,从而人为地使价格居高不下。在本文中,我们提出了一种用于运行在家庭网络之上的完全集成家庭系统的通信协议,该协议足够简单,可以容纳基于微控制器的传感器,但可扩展到足以处理家庭机器人辅助生活的家庭分布式计算机视觉系统。基于以房屋为中心的理念,该协议强调隐私和对居民的保护。
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引用次数: 5
Towards supervisory control of humanoid robots for driving vehicles during disaster response missions 在灾害响应任务中驾驶车辆的人形机器人的监督控制
K. Knoedler, Velin D. Dimitrov, Doug Conn, M. Gennert, T. Padır
We describe the approach of Worcester Polytechnic Institute's (WPI) Robotics Engineering C Squad (WRECS)to the utility vehicle driving task at the Defense Advanced Research Projects Agency (DARPA) Robotics Challenge (DRC) Trials held in December 2013. WRECS was one of only seven teams to attempt the driving task, and the only team with an ATLAS robot to successfully drive the course. We implement a supervisory control system that allows the robot to control the speed of the vehicle, while the operator helps the robot steer the vehicle. Two different methods of estimating speed, using the LIDAR and stereo cameras, are presented, and the performance of the robot at the Trials is discussed.
我们描述了伍斯特理工学院(WPI)机器人工程C班(WRECS)在2013年12月举行的国防高级研究计划局(DARPA)机器人挑战赛(DRC)试验中的多用途车辆驾驶任务的方法。失事车队是仅有的七支尝试驾驶任务的队伍之一,也是唯一一支使用ATLAS机器人成功驾驶全程的队伍。我们实现了一个监督控制系统,允许机器人控制车辆的速度,而操作员帮助机器人驾驶车辆。介绍了两种不同的估计速度的方法,分别使用激光雷达和立体摄像机,并讨论了机器人在试验中的表现。
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引用次数: 5
Applied robotics for installation and base operations for industrial hygiene 用于工业卫生安装和基础操作的应用机器人
C. Korpela, Kenneth Chaney, Pareshkumar Brahmbhatt
A framework is presented for industrial hygiene inspection using a remotely-operated ground vehicle with multiple sensor payloads attached to it for detecting various hazardous gases and chemicals. A control scheme and a graphical user interface between the vehicle and operator is strictly mandated for tasks requiring remote inspection. By leveraging existing navigation and path planning algorithms, the system can autonomously patrol hazardous areas and relay all acquired measurements back to the user. This paper presents recent validation testing results of the system and its sensors using the proposed industrial hygiene framework.
提出了一种框架,用于工业卫生检查,使用远程操作的地面车辆,其上附有多个传感器有效载荷,用于检测各种有害气体和化学品。对于需要远程检查的任务,车辆和操作员之间的控制方案和图形用户界面是严格规定的。通过利用现有的导航和路径规划算法,该系统可以自主巡逻危险区域,并将所有获得的测量结果反馈给用户。本文介绍了该系统及其传感器使用拟议的工业卫生框架的最新验证测试结果。
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引用次数: 5
Product counting using images with application to robot-based retail stock assessment 基于图像的产品计数及其在机器人零售库存评估中的应用
N. Kejriwal, Sourav Garg, S. Kumar
In this paper, we propose a novel method for obtaining product count directly from images recorded using a monocular camera mounted on a mobile robot. This has application in robot-based retail stock assessment problem where a mobile robot is used for monitoring the stock levels on the shelves of a retail store. The products are recognized by carrying out a nearest-neighbor search in the template feature space using a k-d tree. Unlike current approaches which only provide approximate stock level, we propose a method which can compute the exact number of discrete products visible in a given image. The product count is obtained by fitting bounding box around each product and removing them sequentially from the image. A second stage of grid-based search is carried out in the neighborhood of each detected product to detect new products which were missed out in the previous step. This detection is based on a confidence measure that includes various information such as histogram matching and spatial location. The efficacy of the proposed approach is demonstrated through experiments on different datasets obtained using robot camera as well as mobile phone camera. These results show that the robot-based retail stock assessment may become a viable alternative to the currently prevailing manual mode of carrying out these surveys.
在本文中,我们提出了一种新的方法,直接从使用安装在移动机器人上的单目相机记录的图像中获得产品计数。这在基于机器人的零售库存评估问题中有应用,其中移动机器人用于监控零售商店货架上的库存水平。通过在模板特征空间中使用k-d树进行最近邻搜索来识别产品。与目前仅提供近似库存水平的方法不同,我们提出了一种可以计算给定图像中可见的离散产品的确切数量的方法。通过在每个产品周围拟合边界框并依次从图像中移除它们来获得产品计数。在每个被检测产品的邻域中进行第二阶段的网格搜索,以检测出在前一步中遗漏的新产品。这种检测基于包括直方图匹配和空间位置等各种信息的置信度度量。通过机器人相机和手机相机在不同数据集上的实验,验证了该方法的有效性。这些结果表明,基于机器人的零售库存评估可能成为目前流行的手动进行这些调查模式的可行替代方案。
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引用次数: 26
期刊
2015 IEEE International Conference on Technologies for Practical Robot Applications (TePRA)
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