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2014 IEEE International Conference on Advanced Communications, Control and Computing Technologies最新文献

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IVR controllers in hybrid interconnected power generation systems 混合互联发电系统中的IVR控制器
A. Ashe, A. P. Nayak, B. Patra, Soumya Bairishal
In this paper, we describe the various traditional and recently proposed intelligent methods for automatic voltage regulation (AVR) of a power generation unit. We vouch for using artificially intelligent paradigms and thus call it IVR (Intelligent Voltage Regulation). This system is generally deployed in hybrid and interconnected power generation systems. Traditionally PID controllers were used with controller parameter values decided manually and intuitively, which became non-practical as power grids started to interconnect. Then, soft-computing methods for building intelligent controllers based on fuzzy-logic were proposed. These then were integrated with swarm based optimization methods like PSO. A comparison among some of these alternatives is the main objective behind this research.
在本文中,我们描述了各种传统的和最近提出的用于发电机组自动电压调节(AVR)的智能方法。我们保证使用人工智能范例,因此称之为IVR(智能电压调节)。该系统一般部署在混合和互联发电系统中。传统的PID控制器采用手动、直观地确定控制器参数值的方法,随着电网互联的开始,这种方法变得不实用。然后,提出了基于模糊逻辑构建智能控制器的软计算方法。然后将这些方法与基于群体的优化方法(如PSO)集成。本研究的主要目的是对其中一些替代方案进行比较。
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引用次数: 0
Implementing a partial group based routing for homogeneous fat tree network on chip architecture 在芯片结构上实现同质胖树网络的部分分组路由
Abhijit Biswas, H. J. Mahanta, M. Hussain
As the growing consumer electronic market imposes constraint such as compact product design and strict time to market, the traditional method of chip designing failed miserably to satisfy these constraints. With the evolution of Network-on-Chip, researchers have made an honest effort to resolve such issues but designing a network which encourages reusability of components and also scalable still remains an area where more refinement is necessary. In this paper we present before you a fat tree based network on chip. The entire design of the network with the nodes and switches has been described in details. The proposed architecture has been implemented and analyzed in a C++ based simulator. The analysis results have been presented at the end of the paper.
随着消费电子市场的不断发展,对产品设计的紧凑型和产品上市时间的要求越来越严格,传统的芯片设计方法已经无法满足这些要求。随着片上网络的发展,研究人员已经做出了诚实的努力来解决这些问题,但设计一个鼓励组件可重用性和可扩展的网络仍然是一个需要更多改进的领域。本文提出了一种基于胖树的芯片网络。详细描述了节点和交换机网络的整体设计。所提出的体系结构已在一个基于c++的模拟器上实现并进行了分析。本文最后给出了分析结果。
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引用次数: 7
Detection and monitoring of multiple cracks using distributed fiber optic sensor 分布式光纤传感器对多裂纹的检测与监测
N. Niharika, M. Basu, S. Ghorai
Development and propagation of cracks have a greater probability to deteriorate the integrity of a mechanical structure. Hence it is required to detect and monitor the cracks in order to prevent potential failure. In this paper we have proposed a fully distributed crack sensing system based on OTDR. We have used a novel `S'-type fiber layout to increase the sensitivity while preserving the distributed nature of the sensing system. Experiments have been performed to localize the crack positions and investigate the power losses due to crack openings on acrylic sheets. The results show an increase in sensitivity by ~ 1.43dBm/mm of crack opening with the proposed `S'-type fiber layout.
裂纹的发展和扩展更有可能破坏机械结构的完整性。因此,需要对裂缝进行检测和监测,以防止潜在的故障。本文提出了一种基于OTDR的全分布式裂纹感知系统。我们使用了一种新颖的“S”型光纤布局来提高灵敏度,同时保持传感系统的分布式特性。实验已经进行了局部裂纹位置和调查的功率损失由于裂纹开在亚克力板。结果表明,采用“S”型光纤布局,裂纹张开度提高灵敏度约1.43dBm/mm。
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引用次数: 6
Automated populates and updates personalized ontology with analysis result 自动填充和更新个性化本体与分析结果
F. M. Harin Fernandez, R. Ponnusamy
To work effectively, the semantic web make explicit resources via ontologies. Semantic web is intended to make the machines to progress information themselves by understanding its significance. Ontology offers a shared collective understanding of application domain in concise and consensual manner. Ontology serves as a knowledge base domain by instantiating its concepts and semantic query language retrieves the information from the domain. The problem addressed in this paper is the challenge of automated populating and SPARQL query generator ontology given the type of input and retrieve the mandatory information from the personalized ontology. We propose personalized automated ontology for Non-Governmental Organization (NGO) system using Top-down methodology. An NGO is legally organized corporations that function independently from any form of government developed by likely or authorized persons. We propose an algorithm to populate and update ontology constantly based on user input as the requirement changes over time. Note to Practitioners - We develop Ontology by gathered information about various NGO's and built in owl language using protégé tool. The personalized NGO ontology is created by Top-Down Methodology. The users' natural language queries are automatically converted into equivalent SPARQL queries to retrieve information from ontology. To convert user query into SPARQL queries we used QuriOnto and Kuntt Moris Pratt algorithms. Using populate and update algorithm the NGO ontology can be modified constantly based on user input as the requirement changes over time. We develop event-based user interface for easy usage of ontology system. The personalized NGO ontology data are evaluated and result demonstrated in graphical forms. This System offers proper information for people approaching NGOs for fund raising or for benefit.
为了有效地工作,语义网通过本体生成显式资源。语义网的目的是让机器通过理解信息的意义来自行处理信息。本体以简洁和一致的方式提供了对应用领域的共同理解。本体通过实例化其概念作为知识库领域,语义查询语言从领域中检索信息。本文解决的问题是在给定输入类型的情况下自动填充和SPARQL查询生成器本体,并从个性化本体中检索必需信息的挑战。采用自顶向下的方法,提出了面向非政府组织(NGO)系统的个性化自动化本体。非政府组织是合法组织的公司,独立于由可能或授权的人建立的任何形式的政府。我们提出了一种算法,在需求随时间变化时,根据用户输入不断填充和更新本体。从业者须知-我们通过收集各种非政府组织的信息来开发本体,并使用prot工具以owl语言构建。采用自顶向下的方法创建个性化的非政府组织本体。用户的自然语言查询自动转换为等价的SPARQL查询,以便从本体检索信息。为了将用户查询转换为SPARQL查询,我们使用了queronto和Kuntt Moris Pratt算法。使用填充和更新算法,可以根据用户输入不断修改NGO本体,以满足需求随时间的变化。为了方便本体系统的使用,我们开发了基于事件的用户界面。对个性化的NGO本体数据进行评估,并以图形形式展示结果。这个系统提供适当的资讯,让市民可以向非政府组织筹款或索取利益。
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引用次数: 4
Simulation study of torque ripple of an induction motor drive under thermal variations 热变化下感应电机驱动转矩脉动的仿真研究
T. Siraj Ahmed, S. Sao, K. Anjaneyulu
Induction Motors are the major rotating device used in industrial applications, in which both torque and the speed precise control is achieved. After the existing of fast acting solid state switching devices the controlling of ac motor drives became simple, prior to that DC motors were dominated in industrial drive applications as the torque and speed would have controlled independently and was not possible earlier with Ac motor drives. There are many disadvantages of DC motor drive which are overcome with AC motor drives. There are various methods of controlling Induction motor drive but the best method is the Direct Torque Control the only drawback in this method is the torque ripple. From the basic equations of controlling the parameters it is noted that Stator resistance is one of the parameter on which the torque ripple depend, almost in all Induction motor drives this is considered as constant value, but stator resistance varies with the temperature. In this paper a clear study has been made on torque ripple variations with the variation in stator resistance. The study has been carried out in Using Matlab/Simulink software package.
感应电动机是工业应用中使用的主要旋转装置,它可以实现转矩和速度的精确控制。在快速作用的固态开关器件出现之后,交流电机驱动器的控制变得简单,在此之前,直流电机在工业驱动应用中占主导地位,因为转矩和速度将独立控制,而在交流电机驱动器之前是不可能的。直流电机驱动有许多缺点,而交流电机驱动克服了这些缺点。控制异步电机驱动有多种方法,但最好的方法是直接转矩控制,这种方法唯一的缺点是转矩脉动。从控制参数的基本方程可以看出,定子电阻是转矩脉动所依赖的参数之一,几乎在所有异步电动机驱动中定子电阻都被认为是恒定值,但定子电阻随温度的变化而变化。本文研究了转矩脉动随定子电阻变化的规律。本研究是在Matlab/Simulink软件包下进行的。
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引用次数: 1
Design of CMOS based reconfigurable LNA at millimeter wave frequency using active load 基于CMOS的毫米波频率可重构LNA主动负载设计
Bindhiya Vinod, K. Balamurugan, Jayakumar M
Due to increased commercial and scientific applications in millimeter wave (mm wave) band, the development of mm wave transceivers is considered as prominent phase in RFIC design cycle. This paper proposes the design of reconfigurable low noise amplifier (LNA) working at 60 GHz using active load transistor. A single stage source degenerated LNA has been designed to achieve a gain of 8.38 dB and noise figure (NF) of 2.92 dB. The frequency of operation is tuned from 57 to 64 GHz i.e. at millimeter wave. Variation in gain and noise figure are achieved through the design of active load using NMOS transistor. This active load works as reconfiguration network which is subjected to proper bias voltage that yields the highest gain of 8.41 dB and the lower possible gain of 6.9 dB. Similarly the results of NF reaching 2.92 dB as minimum value and on the other end reaching 3.3 dB are observed and presented. That is, reconfigurable performance parameters are gain and NF whose variability is observed to be 17.66 % and 13% respectively. Proper bias voltage is extracted using DC characteristics of load transistor and their results are presented. Design parameter of LNA at millimeter wave frequencies, consideration of noise sources and its equivalent noise voltages, device modeling considering the parasitic effect and choice of LNA configuration have also been discussed.
由于毫米波(mm wave)波段的商业和科学应用的增加,毫米波收发器的开发被认为是RFIC设计周期中的重要阶段。提出了一种基于有源负载晶体管的工作频率为60 GHz的可重构低噪声放大器的设计方法。设计的单级源退化LNA增益为8.38 dB,噪声系数(NF)为2.92 dB。工作频率从57 GHz调谐到64 GHz,即毫米波。利用NMOS晶体管设计有源负载,实现了增益和噪声系数的变化。该主动负载作为重新配置网络工作,该网络受到适当的偏置电压,产生最高增益8.41 dB和较低增益6.9 dB。同样,我们也观察到最小值为2.92 dB,另一端为3.3 dB的结果。即,可重构的性能参数为增益和NF,其可变性分别为17.66%和13%。利用负载晶体管的直流特性提取了适当的偏置电压,并给出了结果。本文还讨论了毫米波频率下LNA的设计参数、噪声源及其等效噪声电压的考虑、考虑寄生效应的器件建模以及LNA结构的选择。
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引用次数: 10
Wearable messaging device for visually impaired person 为视障人士设计的可穿戴通讯设备
C. Suresh Kumar, A. Julian
Today's technology has innumerable wearable solutions to alleviate the problems of disabled persons. The solution presented here is for the visually impaired persons and proposes to develop a wearable device that uses embedded system technology for data input functionalities in a hand glove based keyboard. The hand mounted keypad is easily adaptable by the user and provides flexibility as no prior knowledge is required to handle the hand mounted wearable device. The key glove acts as a prototype which enables the user to have the total functionality of a keyboard in one hand. Key glove is attached with alpha numeric keypad buttons that are mounted on the gloves. The character or number is generated by using mode Selection. (Alpha/Num). The hand mounted keypad can be interfaced with any kind of display device. It can be used for the visually impaired person to send message/call from one person to another using GSM modem. The GSM modem is attached with the gloves. Reply Message from others can be converted into text to voice format using Robo voice shield. The efficiency of the proposed work is evaluated with reference to decreased error rate and increased speed of operation. Voice conversion is also added to this device.
今天的技术有无数的可穿戴解决方案来缓解残疾人的问题。本文提出的解决方案是针对视障人士的,并建议开发一种可穿戴设备,该设备使用嵌入式系统技术在基于手套的键盘中进行数据输入功能。手持键盘很容易被用户调整,并提供灵活性,因为不需要事先的知识来处理手持可穿戴设备。键盘手套作为一个原型,使用户能够在一只手上拥有键盘的全部功能。关键手套附有alpha数字键盘按钮,安装在手套上。使用模式选择生成字符或数字。(α/ Num)。手持键盘可以与任何类型的显示设备接口。视障人士可以使用GSM调制解调器从一个人向另一个人发送信息/电话。GSM modem的手套已连接。回复他人的消息可以通过Robo语音屏蔽转换为文本到语音格式。通过降低错误率和提高操作速度来评估所提出工作的效率。该设备还添加了语音转换功能。
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引用次数: 2
Design and implementation of competent web crawler and indexer using web services 使用web服务设计和实现称职的web爬虫和索引器
D. K. Santhosh Kumar, M. Kamath
Today the internet has become a part of human beings life. To get the information what the user is requesting is the job of search engine which indeed takes the help of web crawler. Designing and developing a competent web crawler is a challenging task. This paper proposes Web crawler and Indexer. The WebCrawler consist of crawler services and indexer services and realized as web services. The crawler and indexer services communicate using XML, SOAP and WSDL. The web pages are fetched and parsed for retrieving all the hyperlinks by the crawler service, and then the same process is continued recursively using the Breadth-First strategy. The result of crawler service is downloaded and given as an input to the indexer services by passing the message using web services. Then the indexer service parses the HTML pages, removes stop words, stemming of keywords are carried out as pre-processing steps. Finally the result is stored in the form of inverted index.
今天,互联网已经成为人类生活的一部分。获取用户所需要的信息是搜索引擎的工作,而搜索引擎需要网络爬虫的帮助。设计和开发一个称职的网络爬虫是一项具有挑战性的任务。本文提出了网络爬虫和索引器。WebCrawler由爬虫服务和索引服务组成,实现为web服务。爬虫和索引服务使用XML、SOAP和WSDL进行通信。爬虫服务获取并解析网页以检索所有超链接,然后使用广度优先策略递归地继续执行相同的过程。通过使用web服务传递消息,下载爬虫服务的结果并将其作为输入提供给索引器服务。然后索引服务解析HTML页面,删除停止词,关键词的词干提取作为预处理步骤进行。最后将结果以倒排索引的形式存储。
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引用次数: 2
Moving object detection in dynamic backgrounds for surveillance systems 动态背景下监控系统的运动目标检测
Wasim Hossain, M. Das
Object detection from a moving image sequence is one of the most challenging research area. Detection of moving objects in a video sequence is the fundamental step but a critical task in information extraction for computer vision applications. The main idea in our paper is to detect the moving objects area smoothly. This paper presents a real time approach to determine objects in the dynamic surveillance systems. It is mainly based on frame difference model and background subtraction model; choose one of the approaches according to the surrounding environment and take the advantages of both FDM and BSM. With this model, a scene containing temporal stationary objects, motionless objects, objects having similar chromatic value of background, illumination change effectively in a surveillance application; can detected smoothly the area of the objects. After determining the moving object area, it is eliminates the noise and finally produce the moving objects area. The experimental results show that our proposed approach can detect the moving objects from video sequence robustly and successfully.
从运动图像序列中检测目标是最具挑战性的研究领域之一。视频序列中运动目标的检测是计算机视觉信息提取的基础步骤,也是关键任务。本文的主要思想是平滑地检测运动目标区域。本文提出了一种动态监控系统中实时确定目标的方法。它主要基于帧差模型和背景相减模型;根据周围环境选择一种方法,充分利用FDM和BSM的优点。利用该模型,可以有效地实现包含时间静止物体、不动物体、具有相似背景色值的物体、光照变化的场景监控应用;可以平滑地检测物体的区域。确定运动目标区域后,消除噪声,最终得到运动目标区域。实验结果表明,该方法可以鲁棒地检测出视频序列中的运动目标。
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引用次数: 5
Layered storage architecture for health system using cloud 基于云的卫生系统分层存储架构
B. Balamurugan, P. Venkata krishna, Lakshmi G. V. Rajya, N. Saravana Kumar
Cloud computing is a paradigm shift from traditional computing offers services that can use ubiquitous internet to transmit data and other functionalities. The health care plays a vital role involved in mundane activities of human life. In proposed work, the efficient framework for health care system using Cloud is achieved through the segmentation algorithm and deployed. Albeit, the layered design of data storage is well-organized for huge critical data and developed with high level security and access control. The framework overcomes the impact created by attacks withstand along with security and privacy flaws of the Cloud. The integration and data sharing of hospital information is made possible using hybrid Cloud. Our framework utilizes the algebraic way of data possession for Cloud auditing those results is cost effective method for overall health care systems with high level of security standards.
云计算是传统计算的一种范式转变,它提供的服务可以使用无处不在的互联网来传输数据和其他功能。医疗保健在人的日常生活中起着至关重要的作用。在本文中,通过分割算法实现了基于云的医疗保健系统的高效框架并进行了部署。尽管如此,数据存储的分层设计对于庞大的关键数据来说是组织良好的,并且具有高级别的安全性和访问控制。该框架克服了攻击所带来的影响,以及云的安全和隐私缺陷。混合云使得医院信息的集成和数据共享成为可能。我们的框架利用数据占有的代数方式进行云审计,这些结果是具有高水平安全标准的整体医疗保健系统的成本效益方法。
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引用次数: 4
期刊
2014 IEEE International Conference on Advanced Communications, Control and Computing Technologies
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