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2016 International Conference on Intelligent Systems Engineering (ICISE)最新文献

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Effective ways to use Internet of Things in the field of medical and smart health care 物联网在医疗和智慧医疗领域的有效应用途径
Pub Date : 2016-05-23 DOI: 10.1109/INTELSE.2016.7475151
K. Ullah, M. A. Shah, Sijing Zhang
The recent advancements in technology and the availability of the Internet make it possible to connect various devices that can communicate with each other and share data. The Internet of Things (IoT) is a new concept that allows users to connect various sensors and smart devices to collect real-time data from the environment. However, it has been observed that a comprehensive platform is still missing in the e-Health and m-Health architectures to use smartphone sensors to sense and transmit important data related to a patient's health. In this paper, our contribution is twofold. Firstly, we critically evaluate the existing literature, which discusses the effective ways to deploy IoT in the field of medical and smart health care. Secondly, we propose a new semantic model for patients' e-Health. The proposed model named as `k-Healthcare' makes use of 4 layers; the sensor layer, the network layer, the Internet layer and the services layer. All layers cooperate with each other effectively and efficiently to provide a platform for accessing patients' health data using smart phones.
最近技术的进步和互联网的可用性使得可以相互通信和共享数据的各种设备连接起来成为可能。物联网(IoT)是一个新概念,它允许用户连接各种传感器和智能设备,从环境中收集实时数据。然而,据观察,在电子保健和移动保健架构中仍然缺少一个综合平台,以使用智能手机传感器来感知和传输与患者健康有关的重要数据。在本文中,我们的贡献是双重的。首先,我们批判性地评估了现有文献,这些文献讨论了在医疗和智能医疗领域部署物联网的有效方法。其次,我们提出了一种新的患者电子健康语义模型。所提出的模型被命名为“k-Healthcare”,它使用了4层;传感器层、网络层、互联网层和服务层。各层之间高效协作,为智能手机访问患者健康数据提供平台。
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引用次数: 122
Predictive Control for improving vehicle handling and stability 预测控制,提高车辆操控性和稳定性
Pub Date : 2015-11-01 DOI: 10.1109/ELECO.2015.7394581
M. Wasim, A. Kashif, A. Awan, M. M. Khan, Syed M. Tahir Zaidi
In the modern era of automotive industry, Active Front Steering (AFS) control is in hot pursuit due to its increased inbuilt vehicle maneuverability, reduced risk of instability and thereby significant reduction in number of accident occurrences. In this paper, a novel control strategy of Model Predictive Controller (MPC) with robust Optimal Guaranteed Cost Controller (OGCC) is introduced for AFS control. In the proposed scheme, MPC is designed to compensate for the effect of the driver's steering input, modeled as a known disturbance. Thus, providing the optimal solution by satisfying control input constraint. The OGCC controller renders the system robustness to the effect of system uncertainties, while achieving acceptable performance for tracking the desired vehicle trajectory. The complete controller scheme achieves the best results with RMS error <; 10-4 and thus whilst guaranteeing the stability of vehicle in the presence of uncertain environment. Numerical simulation results are performed to the effectiveness of the proposed approach over other conventional techniques.
在现代汽车工业中,主动前轮转向(AFS)控制因其增加了车辆的内在机动性,降低了不稳定的风险,从而大大减少了事故发生的数量而受到人们的追捧。本文提出了一种新的模型预测控制器(MPC)与鲁棒最优保证成本控制器(OGCC)相结合的控制策略。在提出的方案中,MPC被设计为补偿驾驶员转向输入的影响,建模为已知的干扰。从而给出了满足控制输入约束的最优解。OGCC控制器使系统对系统不确定性的影响具有鲁棒性,同时获得可接受的跟踪期望车辆轨迹的性能。完整的控制器方案在RMS误差<;10-4,从而保证车辆在不确定环境下的稳定性。数值仿真结果表明,该方法与其他传统方法相比是有效的。
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引用次数: 3
Sidelobe suppression for OFDM based cognitive radio systems using genetic algorithm for subcarrier weighting 基于OFDM的认知无线电系统副瓣抑制的子载波加权遗传算法
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475131
A. Saleem, A. Malik, Muhammad Farooq, S. A. Hussain
Orthogonal frequency division multiplexing (OFDM), because of its different advantages, has been proposed as the enabling modulation technology for cognitive radios. However, the high sidelobes of the subcarriers are a major disadvantage that result in out-of-band radiation (OOB) causing interference to adjacent licensed users. Subcarrier weighting is an efficient technique for suppressing these sidelobes. This paper proposes the genetic algorithm to solve the subcarrier weighting technique's optimization problem that gives the optimum weight vector for sidelobe suppression. The genetic algorithm calculates the weights of the OFDM subcarriers in an optimized way such that the sidelobes of these subcarriers interfere destructively with each other, resulting in a smooth signal in the optimization range thus the sidelobes are suppressed and minimal interference is offered to adjacent users.
正交频分复用(OFDM)由于其不同的优点,被提出作为认知无线电的使能调制技术。然而,子载波的高副瓣是导致带外辐射(OOB)对相邻许可用户造成干扰的主要缺点。副载波加权是一种有效的抑制副瓣的技术。提出用遗传算法解决子载波加权技术的优化问题,给出抑制副瓣的最优权向量。遗传算法以优化的方式计算OFDM子载波的权值,使这些子载波的副瓣相互破坏干扰,使信号在优化范围内平滑,从而抑制副瓣,为相邻用户提供最小的干扰。
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引用次数: 2
Efficient sidelobe suppression by matching beams in two polynomial technique 双多项式波束匹配技术的高效旁瓣抑制
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475147
Z. Khan, A. Naveed, Fahad Munir, F. Zaman
In the literature a technique for sidelobe suppression is presented that utilizes product of two polynomials. In this paper, a method is presented for efficient sidelobe suppression by proper selection of sidelobe region. For this purpose, it is proposed to observe the radiation pattern of the first polynomial to find out the position of right and left nulls adjacent to the main beam. The region outside these nulls is proposed to be utilized for sidelobe region while finding the weights of second polynomial that is meant for sidelobe suppression. This will provide maximum overlap of main beams of the two polynomials and suppress sidelobes efficiently. Simulation results confirm the validity of the proposed method.
在文献中提出了一种利用两个多项式乘积抑制副瓣的方法。本文提出了一种通过合理选择旁瓣区域来有效抑制旁瓣的方法。为此,我们提出通过观察第一个多项式的辐射方向图来找出主波束附近左右零点的位置。在寻找用于抑制旁瓣的第二个多项式的权值的同时,建议利用这些零值以外的区域作为旁瓣区域。这将提供两个多项式的主梁的最大重叠,并有效地抑制副瓣。仿真结果验证了该方法的有效性。
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引用次数: 2
Effects of intrinsic layer thickness variations on heterojunction Pin Diode I–V characteristics 本征层厚度变化对异质结引脚二极管I-V特性的影响
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475136
M. Ahmad
A heterojunction PIN Diode in which an intrinsic layer (I-layer) of In0.53Ga0.47As is sandwiched between N-layer of In0.52Al0.48As and p-layer of In0.53Ga0.47As is modelled and investigated using TCAD simulation. At all ternary uniformly doped epitaxial growth is assumed for all layers with abrupt heterojunction interfaces. Since the epitaxial design of I-layer is most critical in PIN diode operations, the thickness of I-layer is varied in TCAD simulation to calculate maximum leakage current and breakdown voltage in reverse bias operation, and turn on voltage at forward bias operation. By optimizing epitaxial structure of I-layer, we have demonstrated improved DC characteristics for modelled device. S-parameters are then calculated and discussed for a Single Pole Single Throw (SPST) switch configuration of PIN Diode.
本文采用TCAD仿真技术,对In0.53Ga0.47As的本质层(i层)夹在In0.52Al0.48As的n层和In0.53Ga0.47As的p层之间的异质结PIN二极管进行了建模和研究。在所有具有突发性异质结界面的层中,均假定三元均匀掺杂外延生长。由于i层外延设计在PIN二极管工作中最为关键,因此在TCAD仿真中通过改变i层的厚度来计算反向偏置工作时的最大漏电流和击穿电压,以及正向偏置工作时的导通电压。通过优化i层外延结构,我们证明了模型器件的直流特性得到了改善。然后计算并讨论了PIN二极管单极单掷(SPST)开关配置的s参数。
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引用次数: 1
A hybrid evolutionary algorithm for economic load dispatch problem considering transmission losses and various operational constraints 考虑输电损耗和各种运行约束的负荷经济调度问题的混合进化算法
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475121
H. M. Zahid Iqbal, Ali Shafique
Optimization is a mathematical technique that concerns the finding of maxima or minima of functions in some feasible region. There is no business or industry which is not involved in solving optimization problems. A variety of optimization techniques compete for the best solution. Economic Dispatch (ED) is also one of the optimization problem. ED is the process of determining optimal output of available number of electric power generating stations in order to meet total system load, at a minimum possible cost while serving power to the public in a robust and reliable manner satisfying physical and operational constraints. Scarcity of energy resources, ever growing production cost of generation and increased load demand, there is a need to optimize the economic dispatch problem. In this research work, a hybrid technique proposed to solve non-linear ED problem named as Hybrid Particle Swarm Optimization with Gravitational Search Algorithm (HPSO-GSA) considering/neglecting valve point effects, prohibited operating zones, ramp rate limits and transmission losses. In order to evaluate the performance of the proposed Hybrid PSO-GSA algorithm has been tested on different generating unit test systems with different constraints and defined load demands. The simulation results of proposed algorithm are in comparison with the techniques in literature proves the efficiency and effectiveness of the proposed algorithm.
优化是一种数学技术,涉及在可行区域内寻找函数的最大值或最小值。没有哪个企业或行业不涉及解决优化问题。各种优化技术相互竞争以获得最佳解决方案。经济调度也是优化问题之一。电力编配是指以尽可能低的成本,确定现有发电厂数目的最佳发电量,以应付系统的总负荷,同时以稳健和可靠的方式向公众提供电力,以满足物理和操作上的限制。能源资源稀缺,发电生产成本不断提高,负荷需求不断增加,需要优化经济调度问题。在本研究中,提出了一种考虑/忽略阀点效应、禁止操作区域、匝道速率限制和传输损耗的混合粒子群优化算法(HPSO-GSA)来解决非线性ED问题。为了评估所提出的混合PSO-GSA算法的性能,在不同的发电机组测试系统上进行了不同约束条件和定义负载需求的测试。将所提算法的仿真结果与文献中的技术进行了比较,验证了所提算法的效率和有效性。
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引用次数: 6
A hybrid path planning technique developed by integrating global and local path planner 将全局路径规划器与局部路径规划器相结合,提出了一种混合路径规划技术
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475172
M. Imran, F. Kunwar
Finding path in a given environment seems trivial so research, these days, is focused at finding optimal and quality path. Among others, distance traversed by a robot from start point to reach goal is an important measure of optimality and so is safety of robot while traveling through identified path. In this paper, we present a hybrid technique developed by integrating visibility graph as global path planners and potential field method as local or reactive planner. The hybrid technique not only generates a near optimal path in terms of distance but also ensures that robot, at no point from start to goal, touches any obstacle or comes closer than a user defined distance. The results of proposed technique are really encouraging as robot is kept sufficiently away from obstacles while navigating through them. While maintaining safe distance, increase in distance as compared to shortest possible path is only 3.93 %.
在给定的环境中寻找路径似乎微不足道,所以现在的研究主要集中在寻找最优和高质量的路径上。其中,机器人从起始点到到达目标所经过的距离是衡量机器人最优性的重要指标,也是机器人在确定路径上行驶时的安全性的重要指标。本文提出了一种将可见性图作为全局路径规划器,势场法作为局部路径规划器或响应路径规划器相结合的混合路径规划方法。这种混合技术不仅在距离上产生了接近最优的路径,而且还确保机器人从起点到目标的任何一点都不会碰到任何障碍物,也不会比用户定义的距离更近。所提出的技术的结果确实令人鼓舞,因为机器人在导航时足够远离障碍物。在保持安全距离的情况下,与最短可能路径相比,距离仅增加3.93%。
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引用次数: 7
Design of tetra-band frequency reconfigurable antenna for portable wireless applications 便携式无线四波段频率可重构天线的设计
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475154
Shahzeb Hayat, I. A. Shah, I. Khan, Imtiaz Alam, S. Ullah, A. Basir
This paper presents the design of multi and wide band frequency reconfigurable monopole antenna, using FR4 as a substrate with thickness of 1.6mm. The radiating element is printed on a truncated metallic ground plane. The antenna works in a single-band and two dual-band modes using two switches. The single-band (WiMAX at 3.45GHz) mode is obtained when both switches (SW1 and SW2) are in OFF state. The first Dual-band (Wi-Fi at 2.45 GHz and WLAN at 5.45 GHz) mode is achieved when one particular switch of the two switches is turned ON. When both switches are turned ON, the antenna functions in the second dual band mode(GSM at 1.8GHz and WLAN at 5.45GHz). This monopole antenna is designed using computer simulation technology 2011(CST Microwave studio). The designed antenna's performance is examined on the basis of return loss, radiation pattern, Gain,Efficiency and VSWR.
本文以厚度为1.6mm的FR4为衬底,设计了一种多频段和宽带频率可重构单极天线。所述辐射元件印刷在截短的金属接平面上。天线工作在单波段和两个双频模式,使用两个开关。单频段(3.45GHz的WiMAX)模式是在SW1和SW2两个交换机都处于OFF状态时获得的。第一种双频(2.45 GHz的Wi-Fi和5.45 GHz的WLAN)模式是在两个交换机中的一个特定开关打开时实现的。当两个开关都打开时,天线工作在第二个双频模式(GSM 1.8GHz和WLAN 5.45GHz)。该单极天线采用计算机仿真技术2011(CST Microwave studio)设计。从回波损耗、辐射方向图、增益、效率和驻波比等方面对所设计天线的性能进行了测试。
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引用次数: 10
Review in thermal effects on the performance of electric motors 热效应对电动机性能的影响
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475166
S. M. Nawazish Ali, A. Hanif, Q. Ahmed
Thermal effects play an important role on the performance of electric motors for the applications in traction/propulsion systems. In these type of applications, there is a feedback loop as well as transients are involved. The torque speed characteristics of the electric motors are dependent upon the motor parameters such as armature/rotor resistance, stator resistance etc. The parameters are significantly affected by the temperature because change in temperature is very high in propulsion systems. As a result, the performance of electric motors used in propulsion systems is degraded. In this paper, the thermal effects on electric motors are combined at one place which is not done before. This will be quite helpful for the researchers of this area to study the thermal effects on the performance of electric motors collectively.
在牵引/推进系统中,热效应对电动机的性能起着重要的作用。在这些类型的应用程序中,有一个反馈回路以及瞬态涉及。电动机的转矩速度特性取决于电机参数,如电枢/转子电阻、定子电阻等。这些参数受温度的影响很大因为推进系统的温度变化非常大。因此,用于推进系统的电动机的性能下降。本文对电动机的热效应进行了前所未有的综合。这将有助于本领域的研究人员对电机性能的热效应进行综合研究。
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引用次数: 16
Comparison of P-I and I-P controller by using Ziegler-Nichols tuning method for speed control of DC motor Ziegler-Nichols整定法对直流电机速度控制的P-I和I-P控制器的比较
Pub Date : 1900-01-01 DOI: 10.1109/INTELSE.2016.7475144
Sajid Ali Bhatti, Amil Daraz, S. A. Malik
In this paper we use Ziegler-Nichols tuning method for tuning of a Proportional-Integral (P-I) and Integral-Proportional (I-P) controller for a DC motor to control its speed. P-I controller is the most common controller used for speed control of D.C motor. However P-I controller has some disadvantages like high overshoots and sensitivity to controller gains. Therefore to overcome these disadvantages, I-P controller has been implemented for speed control of DC motor. The overshoots in I-P are 30.4% less of P-I controller overshoots. In this work both P-I and I-P controllers are implemented in MATLAB (Simulink) and compare the performance of these two controllers on the basis of their transient response.
本文采用齐格勒-尼克尔斯整定方法对直流电机的比例-积分(P-I)和积分-比例(I-P)控制器进行整定,以控制其速度。P-I控制器是直流电机转速控制中最常用的控制器。然而,P-I控制器有一些缺点,如高过调量和对控制器增益的敏感性。因此,为了克服这些缺点,采用I-P控制器对直流电机进行速度控制。I-P超调比P-I控制器超调少30.4%。本文在MATLAB (Simulink)中实现了P-I和I-P控制器,并根据它们的瞬态响应比较了这两种控制器的性能。
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引用次数: 14
期刊
2016 International Conference on Intelligent Systems Engineering (ICISE)
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