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2011 IEEE Recent Advances in Intelligent Computational Systems最新文献

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An RFID based in-vehicle alert system for road oddities 基于RFID的车载道路异常报警系统
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069265
A. Paul, R. Jagriti, Nischit Bharadwaj, S. Sameera, Arjun S. Bhat
Road transport networks in cities are getting denser and new cars are being unveiled daily. With the rapid increase in road transport the world over comes the need for enhanced driving safety and convenience. Advanced technological concepts ensure a perpetual scope for development in this sector. We are currently developing an RFID based system that will alert vehicle drivers about road oddities at an optimum distance before encountering them. The objective is to provide an alternative to road signs, which are generally scattered, inconspicuous and appear too late for corrective action. Also, the device will aid in averting accidents and traffic jams, and in implementing traffic law and order.
城市的道路交通网络越来越密集,每天都有新车问世。随着世界范围内道路运输的快速增长,人们对驾驶安全性和方便性的要求也越来越高。先进的技术理念确保了这一领域的发展空间。我们目前正在开发一种基于射频识别的系统,该系统可以在遇到道路上的怪异物体之前,在最佳距离提醒车辆驾驶员。目的是提供一种替代道路标志,这些标志通常是分散的,不显眼的,出现得太晚,无法采取纠正行动。此外,该设备将有助于避免事故和交通堵塞,并执行交通法规和秩序。
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引用次数: 10
Variational analysis approach and its applications to robotics 变分分析方法及其在机器人中的应用
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069301
Ankit R. Patel, A. A. Patel, M. A. Patel, Dhaval R Vyas
This paper presents a methodology for variational analysis for the control systems emphasize on Robotics. This is achieved by Lagrangian Mechanics and Variational Collision Integrators. Variational techniques are used to analyze the problem of rigid-body dynamics with impacts. Principles of nonsmooth mechanics for rigid bodies are used in both continuous and discrete time, and provide impact models for a variety of collision behaviors. The discrete Euler-Lagrange (E-L) equations that follow from the discrete time analyses yield variational integration schemes for the different impact models. These discrete E-L equations play a vital role in the method of discrete mechanics and optimal control, which generates locally optimal control policies as the solution to equality constrained nonlinear optimization problems.
本文提出了一种以机器人为重点的控制系统变分分析方法。这是由拉格朗日力学和变分碰撞积分器实现的。用变分方法分析了带冲击的刚体动力学问题。刚体的非光滑力学原理在连续时间和离散时间都得到了应用,并为各种碰撞行为提供了冲击模型。由离散时间分析得出的离散欧拉-拉格朗日(E-L)方程为不同的冲击模型提供了变分积分方案。这些离散E-L方程在离散力学和最优控制方法中起着至关重要的作用,它生成局部最优控制策略作为等式约束非线性优化问题的解。
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引用次数: 2
A low power, low latency tunable Quasi-resonant interconnect using active inductor 采用有源电感的低功耗、低延迟可调谐准谐振互连
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069321
M. Bhaskar, D. Sridevi, B. Venkataramani
In literature, to obtain low power, low latency and high performance interconnects, Quasi-resonance concept is implemented with a series spiral inductor. In this paper Quasi-resonant serial interconnect link with a tunable active inductor is proposed to obtain low power, low latency and low area. The proposed scheme is implemented in a UMC 0.18-µm CMOS technology and the post layout simulations are carried out. The performance evaluation is done for 5mm interconnect with a serial data rate of 5Gbps. From simulations, the insertion point and the value of inductor for the minimum power-delay product is obtained. The observed delay and power of the serial link is 290 psec and 13.52 mW, which is less by a factor of 1.27 and 1.87 than the conventional repeater insertion respectively. The area of the active inductor is 1904µm2, which is less by a factor of 3.53 compared to spiral inductor scheme. The proposed scheme has the advantage to tune the interconnect, for data rates from 1Gbps to 5Gpbs by varying the bias voltages of the tunable active inductor.
在文献中,为了获得低功耗、低延迟和高性能的互连,准共振概念是通过串联螺旋电感实现的。本文提出了一种带有可调谐有源电感的准谐振串行互连链路,以获得低功耗、低时延和低面积。该方案在UMC 0.18µm CMOS技术上实现,并进行了后期布局仿真。在5Gbps串行数据速率下,对5mm互连进行了性能评估。通过仿真得到了最小功率延迟积的插入点和电感值。观测到串行链路的延迟和功率分别为290 psec和13.52 mW,分别比传统中继器插入低1.27和1.87倍。有源电感面积为1904µm2,与螺旋电感方案相比减小了3.53倍。该方案的优点是通过改变可调谐有源电感的偏置电压来调整互连,数据速率从1Gbps到5gbbs。
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引用次数: 0
A Generic Parser to parse and reconfigure XML files 用于解析和重新配置XML文件的通用解析器
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069424
Akhil Rangan, Jayanthi
A XML parser is software that reads the XML document and provides an interface for the user application to access the document. The document can be accessed for the purpose of reading as well as modifying the XML file. In this paper, we present a design idea for a Generic XML Parser, which can be used to parse and reconfigure any valid XML file. The application of this parser is particularly useful in Software Communication Architecture where XML files represent the properties and parameters of hardware components and devices. A change in the parameters of the XML files changes the behaviour of the hardware components. By using this Generic Parser, the XML files can be reconfigured dynamically at the middleware level and hence control the behaviour of the hardware through software. This parser, when used at the middleware level to parse the XML files allows the user application to focus on the application logic itself, without dwelling on the tedious details of parsing the XML. This document gives formatting instructions for authors preparing papers for publication in the Proceedings of an IEEE conference. The authors must follow the instructions given in the document for the papers to be published. You can use this document as both an instruction set and as a template into which you can type your own text.
XML解析器是读取XML文档并为用户应用程序提供访问该文档的接口的软件。可以出于读取和修改XML文件的目的访问该文档。在本文中,我们提出了通用XML解析器的设计思想,它可用于解析和重新配置任何有效的XML文件。这个解析器的应用程序在软件通信体系结构中特别有用,其中XML文件表示硬件组件和设备的属性和参数。对XML文件参数的更改将改变硬件组件的行为。通过使用这个通用解析器,可以在中间件级别动态地重新配置XML文件,从而通过软件控制硬件的行为。当在中间件级别使用此解析器解析XML文件时,用户应用程序可以专注于应用程序逻辑本身,而不必纠结于解析XML的繁琐细节。本文档为准备在IEEE会议论文集上发表的论文的作者提供格式说明。作者必须按照文件中给出的说明来发表论文。您可以使用此文档作为指令集和模板,您可以在其中键入自己的文本。
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引用次数: 5
Innovative handoff avoidance mechanism and QoS enhancement for future WLANs 未来无线局域网的创新切换避免机制和QoS增强
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069434
S. Aravind Prasad, Y. Kannan
With the development of wireless communication technologies, IEEE 802.11 standard has undergone a rapid growth, thanks to low cost and high-speed connectivity. More importantly, the Future wireless networks are expected to have the privilege of ubiquitous connectivity extending its support to several applications. Hence effective mechanisms need to be developed to exploit the diversity across a multiple access points and to provide a uniform load distribution in order to improve the QoS of users and to improve the overall composite capacity. In this paper, we propose a cognitive handoff mechanism that adaptively applies full channel scheme before and First Satisfaction First Reservation Handoff (FSFR-HO) Mechanism after minimum delay limitation time of sensitive application used in MH by considering the current active application in use rather than a single fixed threshold value and dynamically changing the threshold value depending upon the currently active applications. In addition to it, we also propose distributive Load Balancing scheme which completely avoids unnecessary overloading of access points by considering the load at the target access point before associating with it.
随着无线通信技术的发展,IEEE 802.11标准因其低成本和高速连接而得到了快速发展。更重要的是,未来的无线网络有望拥有无处不在的连接特权,将其支持扩展到多个应用程序。因此,需要开发有效的机制来利用多个接入点之间的多样性,并提供均匀的负载分配,以改善用户的QoS并提高整体组合容量。本文提出了一种认知切换机制,通过考虑当前正在使用的活跃应用而不是单一的固定阈值,并根据当前活跃应用动态改变阈值,在MH中使用的敏感应用的最小延迟限制时间之后,自适应地应用全通道方案和先满足先保留切换(fsr - ho)机制。此外,我们还提出了分布式负载均衡方案,通过在关联目标接入点之前考虑其负载,完全避免了接入点不必要的过载。
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引用次数: 3
IR based Level Set Evolution for segmentation of shadow images 基于IR的水平集进化阴影图像分割
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069436
R. Ganta, Syed Zaheeruddin, Narsimha Baddiri, R. Rameshwar Rao
Inhomogeneous intensity regions get embedded into the images due the result of image acquisition done under various lightening conditions. Segmentation of such images by using traditional methods shows poor results. In this paper we propose a Level set method by introducing a new adaptive force function on the level sets evolution. The force function is derived from reflectance & illuminations present in the image. This method is proved to be successful in segmentation of images by excluding the shadow regions present in the images.
由于在不同的光照条件下进行图像采集,图像中嵌入了不均匀的强度区域。传统方法对此类图像的分割效果较差。本文通过在水平集演化过程中引入一种新的自适应力函数,提出了一种水平集方法。力函数由图像中的反射率和光照导出。该方法排除了图像中存在的阴影区域,成功地分割了图像。
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引用次数: 0
Detection and removal of Salt and Pepper noise in images by improved median filter 改进的中值滤波方法检测和去除图像中的椒盐噪声
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069335
S. Deivalakshmi, S. Sarath, P. Palanisamy
A methodology based on median filters for the removal of Salt and Pepper noise by its detection followed by filtering in both binary and gray level images has been proposed in this paper. Linear and nonlinear filters have been proposed earlier for the removal of impulse noise; however the removal of impulse noise often brings about blurring which results in edges being distorted and poor quality. Therefore the necessity to preserve the edges and fine details during filtering is the challenge faced by researchers today. The proposed method consists of noise detection followed by the removal of detected noise by median filter using selective pixels that are not noise themselves. The noise detection is based on simple thresholding of pixels. Computer simulations were carried out to analyse the performance of the proposed method and the results obtained were compared to that of conventional median filter and center weighted median (CWM) filter.
本文提出了一种基于中值滤波的去除椒盐噪声的方法,该方法首先对二值图像和灰度图像进行检测,然后进行滤波。线性和非线性滤波器已经被提出用于去除脉冲噪声;然而,去除脉冲噪声往往会导致图像模糊,导致图像边缘失真,图像质量差。因此,在滤波过程中保持边缘和细节是当今研究人员面临的挑战。所提出的方法包括噪声检测,然后使用非噪声的选择性像素通过中值滤波去除检测到的噪声。噪声检测是基于像素的简单阈值。计算机仿真分析了该方法的性能,并与传统中值滤波器和中心加权中值滤波器(CWM)进行了比较。
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引用次数: 46
Bank automation system for Indian currency- a novel approach 印度货币银行自动化系统——一种新颖的方法
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069322
Dayakshini, K. Sathisha
In this paper, we present a microcontroller based system to automatically identify the serial numbers of the Indian currency. The system utilizes several image processing techniques and algorithms. The system is accurate, fast and reliable and low cost in comparison with currently available systems.
本文提出了一种基于单片机的印度货币序列号自动识别系统。该系统采用了多种图像处理技术和算法。与现有系统相比,该系统具有准确、快速、可靠、成本低等优点。
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引用次数: 7
Field oriented control of Permanent Magnet Synchronous Motor (PMSM) using fuzzy logic controller 基于模糊控制器的永磁同步电机磁场定向控制
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069379
B. Adhavan, A. Kuppuswamy, G. Jayabaskaran, V. Jagannathan
The Permanent Magnet Synchronous Motor (PMSM) has been widely used in the low to medium power system due to its characteristics of high efficiency, high torque to inertia ratio, high reliability and fast dynamic performance. With the advent of the vector control methods,permanent magnet synchronous motor can be operated like separately excited dc motor high performance application. The complexity of PI controller tuning and high response time is overcome by Fuzzy controller. Which has less response time and high accuracy without any mathematical calculation .This paper presents a simulation of speed control system on fuzzy logic approach for an indirect vector controlled permanent magnet synchronous drive by applying space vector modulation. The design, analysis and simulation of the proposed system is done using MATLAB version 8.
永磁同步电动机以其效率高、转矩惯量比大、可靠性高、动态性能快等特点,在中、低压系统中得到了广泛的应用。随着矢量控制方法的出现,永磁同步电机可以像分励直流电动机一样高效运行。模糊控制器克服了PI控制器整定的复杂性和高响应时间。本文采用模糊逻辑方法,采用空间矢量调制,对间接矢量控制永磁同步驱动器的速度控制系统进行了仿真。利用MATLAB 8对系统进行了设计、分析和仿真。
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引用次数: 47
PAINTbot - FPGA based wall painting service robot prototype PAINTbot -基于FPGA的墙刷服务机器人原型
Pub Date : 2011-11-03 DOI: 10.1109/RAICS.2011.6069415
Boon Ean Teoh, S. V. Ragavan
A fully functional wall painting robot prototype for indoor and outdoor environments has been developed. The prototype development includes building the hardware and software subsystems for the robot. The robot controller has developed using the Altera DE2 Development Board with the software implementation done in Quartus II 8.1 and NIOS II IDE using C language programming. Hardware development of the robot involves building the main chassis, the stepper motor and drivers, sensor circuitries and electro pneumatic controls of the air brush for painting. The software implementation includes converting the MATLAB code to C and VHDL codes to generate the coordinates when the area of the workspace is provided. These coordinates are used to specify the changes in length for the supporting string. The robot movements from point to point are done based on changing the respective suspension lengths to reach a particular coordinate. A path planning algorithm was developed and validated in MATLAB with two path options, z-path and u-path. The paint area was also plotted on the workspace in the GUI. In the functional prototype, the robot is able to paint a workspace specified by user, avoiding all windows area. However, the quality of painting needs to be greatly improved before deployments are possible.
一个全功能的室内和室外环境的墙壁粉刷机器人原型已经开发。原型开发包括构建机器人的硬件和软件子系统。机器人控制器采用Altera DE2开发板开发,软件实现采用Quartus II 8.1和NIOS II IDE,采用C语言编程。机器人的硬件开发包括构建主底盘、步进电机和驱动器、传感器电路和喷漆气刷的电气动控制。软件实现包括将MATLAB代码转换为C和VHDL代码,以在提供工作空间区域时生成坐标。这些坐标用于指定支持字符串的长度变化。机器人从一个点到另一个点的运动是基于改变各自的悬架长度来达到一个特定的坐标。开发了一种具有z路径和u路径两种路径选择的路径规划算法,并在MATLAB中进行了验证。绘制区域也绘制在GUI的工作空间上。在功能原型中,机器人能够绘制用户指定的工作空间,避免所有窗口区域。然而,在部署之前,油漆的质量需要大大提高。
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引用次数: 12
期刊
2011 IEEE Recent Advances in Intelligent Computational Systems
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