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4751.通过化学优化模式在摄动力矩下优化的模糊跟踪控制器的自主移动机器人
[电气机械和器材制造业,计算机、通信和其他电子设备制造业] [2013-12-23]
This paper addresses the tracking problem for the dynamic model of a unicycle mobile robot. A novel optimization method inspired on the chemical reactions is applied to solve this motion problem by integrating a kinematic and a torque controller based on fuzzy logic theory. Computer simulations are presented confirming that this optimization paradigm is able to outperform other optimization techniques applied to this particular robot application.
关键词:机器人;优化模式;自主;控制器
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4752.规范的SLA的可用性与性能数值数据云
[信息传输、软件和信息技术服务业] [2013-12-23]
Cloud service providers negotiate with customers to set a minimum of 99.9 percent as theguaranteed service availability level, but the range that falls in the guaranteed service levelscomplicates management of service level agreements because partner relationships can befull of complex variables. One of those variables is accumulative errors from rounding andtruncation in the calculations. The author presents a solution to this set of problems: Usenumerical analysis of performance data to obtain approximate solutions while you maintainreasonable bounds on errors as part of an SLA standardization effort.
关键词:泰勒系列;数值分析;SLA;云计算;云服务
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4753.通过使用子目标建立基于视觉的移动机器人导航
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2013-12-23]
This chapter discusses how a vision based robot navigation scheme can be developed, in a two-layered architecture, in collaboration with IR sensors. The algorithm employs a subgoal based scheme where the attempt is made to follow the shortest path to reach the final goal and also simultaneously achieve the desired obstacle avoidance. The algorithm operates in an iterative fashion with the objective of creating the next subgoal and navigating upto this point in a single iteration such that the final goal is reached in minimum number of iterations, as far as practicable.
关键词:机器人 子目标 导航
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4754.高级量程安全系统的高能源汽车
[汽车制造业] [2013-12-23]
The advanced range safety system project is a collaboration between the National Aeronautics and Space Administration and the United States Air Force to develop systems that would reduce costs and schedule for safety approval for new classes of unmanned high-energy vehicles. The mission-planning feature for this system would yield flight profiles that satisfy the mission requirements for the user while providing an increased quality of risk assessment, enhancing public safety. By improving the speed and accuracy of predicting risks to the public, mission planners would be able to expand flight envelopes significantly. Once in place, this system is expected to offer the flexibility of handling real-time risk management for the high-energy capabilities of hypersonic vehicles including autonomous return-from-orbit vehicles and extended flight profiles over land. Users of this system would include mission planners of Space Launch Initiative vehicles, space planes, and other high-energy vehicles. The real-time features of the system could make extended flight of a malfunctioning vehicle possible, in lieu of an immediate terminate decision. With this improved capability, the user would have more time for anomaly resolution and potential recovery of a malfunctioning vehicle.
关键词:高能源汽车;安全系统
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4755.移动机器人连接的外围设备
[电气机械和器材制造业,计算机、通信和其他电子设备制造业] [2013-12-23]
This chapter discusses how real-life interfacing of external peripherals with a ready-made mobile robot can be successfully achieved. Such a system is hoped to be useful for those research scenarios where, many-a-time, because of the fund constraints, a complete robot system cannot be procured with all its accessories and sensor systems. This chapter discusses how such interfacing can be achieved for the KOALA robot using serial communication in interrupt driven mode.
关键词:机器人;移动;外围设备
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4756.基于视觉的移动机器人算法的样本实现
[计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2013-12-23]
This chapter presents a detailed, step-by-step demonstration of how vision-based navigation modules can be actually implemented in real life, under 32-bit Windows environment. These lessons start with a simple development of capturing image frames from a running video and then gradually proceeds to more complex tasks of incorporating image processing capabilities e.g. filtering techniques, contrast enhancement, adaptive thresholding etc. Then the lessons demonstrate how to extract path for the robot from such images and how a rule-based approach can be utilized to determine left and right wheel speed settings of a differential drive system.
关键词:机器人 样本 实现算法
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4757.≤60nm覆盖精度的纳米压印光刻技术
[计算机、通信和其他电子设备制造业] [2013-12-23]
Nanoimprint lithography (NIL) is a high-resolution, high-throughput and cost-effective nano-patterning technology. However, the overlay accuracy is lagging behind the resolution because of the high cost of mechanical precision. We have built an inexpensive stand-alone machine based on the wafer bowing nanoimprint process, and demonstrated single-point overlay of two transferred pattern layers with an accuracy of ≤60 nm.
关键词:纳米压印;覆盖;光刻
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4758.IBM部署人员的工作量提示:自动重命名相同标记的浏览器标签
[信息传输、软件和信息技术服务业] [2013-12-23]
Work more efficiently with IBM? Workload Deployer by automatically assigning unique tabnames when multiple Workload Deployer consoles are open in your browser. David Leighshares a script that Firefox and Chrome users can run to differentiate otherwise identicallynamed tabs.
关键词:浏览器标签;脚本扩展;火狐浏览器
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4759.基于触觉的机器人遥控操作:与真实环境交互
[电气机械和器材制造业,计算机、通信和其他电子设备制造业] [2013-12-23]
Robot teleoperation via haptic interface has been increasingly studied in recent years. In fact, the capacity to remotely feel the forces being exerted on a robot end-effector is a major advantage for many modern robot applications. This study aims to explore the capabilities of a low-cost haptic device, a force/torque sensor and a commercially available industrial robot, both together for haptic-based robot teleoperation purposes. A ballistic approach is implemented to make the mapping between the motion produced on the haptic device by the operator and the resulting robot motion. Inspired by some studies in the field of robot haptics, the robot and haptic device are connected by a virtual spring, which allows the operator to feel the sensation of pull and push the robot at the same time that teleoperates it. Results related to the process of robot
关键词:机器人;遥控;交互
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4760.为Paas使用Iaas
[信息传输、软件和信息技术服务业] [2013-12-23]
Some Infrastructure as a Service (IaaS) providers aren't willing to give Layer 4-7 services toenterprises that want to migrate applications requiring complex load balancing, applications,and firewalls from their private data centers into a public IaaS. Providers who do give Layer 4-7services take prudent, proactive steps to offer Platform as a Service (PaaS) developers a widerrange of IaaS delivery services (for example, disaster recovery service). Learn which deliveryservices the PaaS can use and what layers of multi-defense mechanisms should be consideredto better protect the IaaS from cloud abuse.
关键词:云计算网络;虚拟机;灾难恢复服务