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2017 International Conference on Electrical, Computer and Communication Engineering (ECCE)最新文献

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Multiple motion control system of robotic car based on IoT to produce cloud service 基于物联网的机器人汽车多运动控制系统,产生云服务
Maliha Rahman Mishi, Rabeya Bibi, Tanveer Ahsan
The world of control is an exciting field that has exploded with new technologies where the Internet of Things (IoT) vision becomes reality. This paper proposes a multiple motion controlling mechanism of a robotic car using Raspberry Pi which works as master and Arduino UNO which works as slave. Each device is uniquely identifiable by the controlling software which is the core concept of IoT. Client manages the activities of the car from remote or distant places over the internet by voice commands and Universal Windows Application and also able to get data and feedback. The main contribution of this paper is that it leverages the efficiency of robot's motion controlling system because robotic car can receive direct commands at a time from multiple sources which make the maneuvering system more efficient. Both device and client do not need to be online at the same time. Commands and data are stored in cloud service which delivers them when the device is ready to receive. A GPS system is incorporated thus clients can trace the car. The system has ultrasonic distance sensor for avoiding obstacles coming in between its path. We present the architecture and design of the Raspberry Pi and Arduino communication software and illustrate how to control the car by means of commands and application.
控制世界是一个令人兴奋的领域,随着新技术的发展,物联网(IoT)的愿景成为现实。本文提出了一种以树莓派为主、Arduino UNO为从的机器人汽车多运动控制机制。每个设备都是由控制软件唯一识别的,这是物联网的核心概念。客户通过互联网通过语音命令和通用Windows应用程序从远程或遥远的地方管理汽车的活动,并能够获得数据和反馈。本文的主要贡献是利用了机器人运动控制系统的效率,因为机器人汽车可以同时接收来自多个源的直接命令,从而提高了机动系统的效率。设备和客户端不需要同时在线。命令和数据存储在云服务中,当设备准备好接收时,云服务就会发送命令和数据。装有GPS系统,因此客户可以追踪车辆。该系统有超声波距离传感器,以避免在其路径之间的障碍物。介绍了树莓派和Arduino通信软件的架构和设计,并说明了如何通过命令和应用程序来控制汽车。
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引用次数: 7
Effect of human body on an 800 MHz inset fed rectangular microstrip patch antenna characteristics 人体对800mhz插入馈电矩形微带贴片天线特性的影响
M. M. U. Rashid, L. Paul, Amal Bouazizi, Rikta Sen, Bijoy Podder, A. K. Sarkar
This work demonstrates the impact of human body on an 800 MHz inset fed rectangular microstrip patch antenna characteristics. The antenna was simulated over a human phantom model consisting human thigh muscle using CST Microwave Studio. The distance between the antenna and human thigh muscle was varied to analyze the changes in antenna performance for waveguide port feeding. The results exhibited significant changes in antenna characteristics, especially the shifting of center frequency to a lower value due to the human body. Specific Absorption Rate (SAR) was studied as well to illustrate how on-body communication or mobile phone antennas of GSM band might affect human body when mobile phones are kept in pants pocket.
研究了人体对800mhz插入馈电矩形微带贴片天线特性的影响。利用CST Microwave Studio在人体大腿肌肉模型上对天线进行仿真。通过改变天线与人体大腿肌肉的距离,分析波导端口馈电对天线性能的影响。结果表明,天线特性发生了明显变化,特别是由于人体的影响,中心频率向较低的值移动。研究了手机的比吸收率(Specific Absorption Rate, SAR),说明了手机放在裤子口袋里时,身体上的通信或GSM频段的手机天线对人体的影响。
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引用次数: 1
Experimental analysis of data mining application for intrusion detection with feature reduction 数据挖掘在特征约简入侵检测中的应用实验分析
Nazmul Shahadat, Imam Hossain, A. Rohman, Nawshi Matin
As tremendous growth of information in the internet, the importance of Network security also dramatically increases. Network and Host based Intrusion Detection System (IDS) are two primary systems in Network Security infrastructure. When new intrusion types are appeared in Network or Host, some serious problems are also appeared to detect these new intrusions. Due to this reason, IDSs demanded better than Signature based detection. The action of intrusion is represented by some features and collects the corresponding featured data from these uncertain feature characteristics. In last two decades, several techniques are developed to detect intrusion by using these data as human labeling which is very time consuming and expensive process. In this paper, we proposed a data mining rule based algorithm called Decision Table (DT) to detect intrusion and a new feature selection process to remove irrelevant/correlated features simultaneously. An empirical analysis on KDD'99 cup dataset was performed by using our proposed and some other existence feature selection techniques with DT and some others classification algorithms. The experimental results showed that proposed approach provides better performance in accuracy and cost compared among Bayesian Network, Naïve Bayes Classifier and other developed algorithms with data mining KDD'99 cup challenge in all cases.
随着互联网信息的巨大增长,网络安全的重要性也急剧增加。基于网络的入侵检测系统和基于主机的入侵检测系统是网络安全基础设施中的两个主要系统。当网络或主机中出现新的入侵类型时,检测这些新的入侵也会出现一些严重的问题。因此,入侵防御者需要比基于签名的检测更好的检测方法。入侵行为用一些特征来表示,并从这些不确定特征特征中收集相应的特征数据。近二十年来,人们开发了几种利用这些数据作为人工标记来检测入侵的技术,这是一个非常耗时和昂贵的过程。本文提出了一种基于数据挖掘规则的决策表(DT)算法来检测入侵,并提出了一种新的特征选择过程来同时去除无关/相关的特征。利用本文提出的存在特征选择技术和DT分类算法对KDD'99 cup数据集进行了实证分析。实验结果表明,在所有情况下,与贝叶斯网络、Naïve贝叶斯分类器和其他开发的数据挖掘KDD'99 cup挑战算法相比,该方法在准确率和成本上都有更好的表现。
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引用次数: 13
An efficient 6 bit encoding scheme for printable characters by table look up 一个有效的6位编码方案,用于通过表查找可打印字符
Ashiq Mahmood, T. Latif, K. Hasan
Encoding a character in an efficient way is always desirable because it takes less bits and less time for data. It has many application areas including data communication, data storage and database technology. In this paper we propose a new compression algorithm for text data that encodes any character by 6 bits called 6-bit encoding (6BE). The scheme deals with an encoding technique by 6 bits for printable characters using table look up. 6BE converts the 8 bit characters to 6 bits by dividing the characters into 5 sets and using them in a single table. The location of character is then used uniquely to encode by 6 bits. The 6BE can compress the text by 25% of the original text. The reverse algorithm for decomposition to get back the original text is also described. 6BE encoding produces another set of characters. The result of 6BE string is further compressed by Huffman and LZW algorithm. Our experimental result shows promising performance. Examples and descriptions are provided to explain the technique.
以一种有效的方式编码字符总是可取的,因为它占用更少的位和更少的数据时间。它的应用领域包括数据通信、数据存储和数据库技术。本文提出了一种新的文本数据压缩算法,该算法对任意字符进行6位编码,称为6位编码(6BE)。该方案使用表查找技术处理可打印字符的6位编码技术。6BE通过将字符分成5组并在单个表中使用它们,将8位字符转换为6位。然后使用字符的位置唯一地进行6位编码。6BE可以将文本压缩为原始文本的25%。还描述了反向分解算法,以获得原始文本。be编码产生另一组字符。6BE字符串的结果通过Huffman和LZW算法进一步压缩。实验结果显示了良好的性能。提供了示例和描述来解释该技术。
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引用次数: 7
A fixed assignment based window access scheme for enhancing QoS of vehicular adhoc networks 一种提高车载自组网QoS的基于固定分配的窗口接入方案
Md. Amirul Islam, Shafika Showkat Moni, M. S. Alam
In this paper, we propose a new MAC scheme for Vehicle-to-Infrastructure (V2I) communications that ensures fairness and reassignment of unused TDMA slots. The proposed TDMA based scheduling scheme allocates TDMA slots to the vehicles evenly and continuously monitors the network for unused slots. Our scheme ensures reassignments of unused slots by using “capture effect” and “time slot reassignment” mechanism. Simulation results show that the proposed scheme outperforms the conventional protocols in terms of successfully transmitted data packets, average delay and data loss ratio.
在本文中,我们提出了一种新的车辆对基础设施(V2I)通信的MAC方案,该方案确保了未使用的TDMA时隙的公平性和重新分配。提出的基于TDMA的调度方案将TDMA时隙均匀地分配给车辆,并持续监控网络中未使用的时隙。我们的方案通过使用“捕获效应”和“时隙重新分配”机制来确保未使用时隙的重新分配。仿真结果表明,该方案在数据包传输成功率、平均时延和数据丢失率等方面均优于传统协议。
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引用次数: 2
Effect of dielectric constant and oxide thickness on the performance analysis of symmetric double gate stack-oxide junctionless field effect transistor in subthreshold region 介电常数和氧化物厚度对亚阈区对称双栅无结场效应晶体管性能分析的影响
Chmmoy Nath Saha, Raisa Fabiha, M. Islam
In this paper, the potential distribution for symmetric double gate stack-oxide junctionless field effect transistor (DGS-JLFET) in subthreshold region has been observed. Using the potential distribution, current vs voltage (Ids vs. Vgs) characteristic and various short channel effects such as on-off ratio (Ion/Ioff), subthreshold swing (SS), drain induced barrier lowering (DIBL), threshold voltage roll-off (TVRO) have been studied by changing device parameters. It has been observed that, if the dielectric constant of high-k oxide is increased and the thickness of stack-oxide is decreased, device shows better short channel effect (SCE) performance in the most of the cases.
本文观察了对称双栅无结场效应晶体管(DGS-JLFET)在亚阈值区域的电位分布。利用电势分布,研究了电流与电压(Ids vs. Vgs)特性和各种短通道效应,如通断比(Ion/Ioff)、亚阈值摆幅(SS)、漏极诱导势垒降低(DIBL)、阈值电压滚降(TVRO)等。结果表明,增大高k氧化物的介电常数,减小氧化物层厚度,在大多数情况下器件都能表现出较好的短通道效应(SCE)。
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引用次数: 3
Behavior of a physics based p-i-n perovskite solar cell by varying different cell parameters 改变不同电池参数的基于物理的p-i-n钙钛矿太阳能电池的行为
S. N. Sakib, Shananda Rahman, Sanjida Parvin
This paper represents the behavior of a physics based p-i-n perovskite solar cell by varying different parameters. Perovskite solar cells have gained more popularity in the recent few years due to different organic and inorganic materials. In this paper, a physics based theoretical model for perovskite solar cell is used for our simulation work. A p-i-n perovskite solar cell is considered for the work. By changing different parameters of solar cell, the open circuit voltage, short circuit current density and the efficiency vary. All the changes are plotted in the graphs. The J-V characteristics and the P-V curve for the p-i-n perovskite solar cell are shown in the paper. In this paper, the graph that are given have been generated using the accurate equations given for theoretical analysis. The changes are plotted separately for a better understanding. Maximum power has been calculated from the graph.
本文通过改变不同的参数来描述基于物理的p-i-n钙钛矿太阳能电池的行为。钙钛矿太阳能电池由于有机和无机材料的不同,近年来得到了越来越多的欢迎。本文采用基于物理的钙钛矿太阳能电池理论模型进行了仿真研究。本文考虑了一种p-i-n钙钛矿太阳能电池。通过改变太阳能电池的不同参数,可以改变开路电压、短路电流密度和效率。所有的变化都用图表表示出来了。本文给出了p-i-n钙钛矿太阳能电池的J-V特性和P-V曲线。本文利用所给出的精确方程,生成了所给出的图,用于理论分析。为了更好地理解,这些变化是单独绘制的。最大功率已从图中计算出来。
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引用次数: 3
Robust adaptive backstepping controller design for PWM based DC-DC buck converter based on projection method 基于投影法的PWM型DC-DC降压变换器鲁棒自适应反步控制器设计
T. K. Roy, L. C. Paul, M. Pervej, M. Sarkar, F. K. Tumpa
DC-DC power converter is a most important power source for driving a DC system in contemporary power electronic systems. However, owing to the time-varying and nonlinear characteristics of load resistance, it is often very challenging issue to ensure the stability of such converters. This paper is concerned about the regulation of the output voltage of a DC-DC buck converter using a nonlinear robust adaptive technique. The proposed controller is designed recursively based on the Lyapunov theory where the load resistance is considered as an unknown parameter. This unknown load resistance is estimated through the parameter adaptation law based on the projection method. Note that the projection method is a robustness augmentation technique that bounds the unknown parameter variations in a convex set which confirm through the formulation of control Lyapunov functions (CLFs) at different stages. The advantages of the proposed controller are that it can provide robust performance against external turbulence and also conquer the over-parameterization difficulty. At last the usefulness of the designed controller is verified through simulation results and compared with an existing controller. From the simulation results, it is obvious that the designed controller provides a significant performance improvement than the existing controller in terms of settling time and fast tracking desired output voltage.
DC-DC电源变换器是现代电力电子系统中驱动直流系统的重要电源。然而,由于负载电阻的时变和非线性特性,保证这种变换器的稳定性往往是一个非常具有挑战性的问题。本文研究了一种非线性鲁棒自适应技术对DC-DC降压变换器输出电压的调节。该控制器基于李雅普诺夫理论递归设计,其中负载阻力作为未知参数。通过基于投影法的参数自适应律估计未知负载阻力。请注意,投影方法是一种鲁棒性增强技术,它通过不同阶段的控制李雅普诺夫函数(clf)的公式确定凸集中的未知参数变化。所提出的控制器的优点是能够提供抗外部湍流的鲁棒性能,并且克服了过参数化的困难。最后通过仿真结果验证了所设计控制器的有效性,并与现有控制器进行了比较。从仿真结果可以明显看出,所设计的控制器在稳定时间和快速跟踪期望输出电压方面比现有控制器提供了显着的性能改进。
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引用次数: 2
Indoor localization system for assisting visually impaired people 辅助视障人士的室内定位系统
M. Alam, Sayed Erfan Arefin, Miraj Al Alim, Samiul Islam Adib, M. Rahman
In this paper we developed an image processing based indoor localization system with color detection technique of connected objects. By using color detection technique our system can pinpoint a user's location with very high accuracy for real-time applications. We used our system to filter out an image for a specific color and extracted pixel co-ordinates for that image. User's location is then determined by comparing the matrix for those values against a pre-created matrix of training images. We successfully conducted experiments in indoor environments as well and they yielded very good results. After analyzing these results, we propose to integrate our localization system with indoor navigation systems which can be used for blind people where accuracy is the most important element. To further facilitate the navigation process we also developed an android based application.
本文开发了一种基于图像处理的室内定位系统。通过使用颜色检测技术,我们的系统可以在实时应用中以非常高的精度确定用户的位置。我们使用我们的系统过滤出特定颜色的图像,并提取该图像的像素坐标。然后通过将这些值的矩阵与预先创建的训练图像矩阵进行比较来确定用户的位置。我们也成功地在室内环境中进行了实验,并取得了非常好的结果。在分析这些结果后,我们提出将我们的定位系统与室内导航系统相结合,可以用于最重要的因素是精度的盲人。为了进一步方便导航过程,我们还开发了一个基于android的应用程序。
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引用次数: 8
DURI-MAC: A dual channel receiver initiated MAC protocol for wireless sensor network (WSN) DURI-MAC:用于无线传感器网络(WSN)的双通道接收端发起的MAC协议。
Md.Ibrahim Khalil, M. Hossain, Imtiaz Ahmed
In data communication aspects, wireless medium is more popular than wired medium. The MAC protocol performs a vital role in regulating of message communication. Due to reduce number of collision and improving throughput a lot of wireless sensor network MAC protocol has been proposed. However, the main drawbacks of asynchronous MAC protocol are data collision, hidden terminal problem, energy consumption and idle listening. With a view to decreasing data collision and minimize hidden and exposed terminal problem, we propose an improvement of RI-MAC entitled as DURI-MAC. In DURI-MAC, we use dual channel in order to minimize number of hidden and exposed terminal that reduce number of collision and improve network throughput. Moreover, we use a unique CCA time generator that also enhances system throughput. We use OMNET++ as our simulation platform and compare our result with RI-MAC, RCMAC and IRI-MAC. The simulation result shows that DURI-MAC outperforms compare to other MAC in terms of throughput, reduced collision and successful transmission.
在数据通信方面,无线媒体比有线媒体更受欢迎。MAC协议在报文通信中起着至关重要的调节作用。为了减少碰撞次数和提高吞吐量,人们提出了许多无线传感器网络MAC协议。然而,异步MAC协议的主要缺点是数据冲突、终端隐藏问题、能耗和空闲侦听。为了减少数据冲突,减少终端隐藏和暴露问题,我们提出了一种改进的RI-MAC,称为DURI-MAC。在DURI-MAC中,为了最大限度地减少隐藏和暴露终端的数量,我们使用了双通道,从而减少了冲突次数,提高了网络吞吐量。此外,我们还使用了独特的CCA时间发生器,提高了系统吞吐量。采用omnet++作为仿真平台,并将仿真结果与RI-MAC、RCMAC和IRI-MAC进行了比较。仿真结果表明,DURI-MAC在吞吐量、减少碰撞和成功传输方面都优于其他MAC。
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引用次数: 7
期刊
2017 International Conference on Electrical, Computer and Communication Engineering (ECCE)
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