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2014 International Conference on Advances in Electrical Engineering (ICAEE)最新文献

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A parallel VLSI architecture for fast min max predicate based Region Growing Algorithm 基于最小最大谓词的快速区域增长算法的并行VLSI结构
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838566
Pradipta Roy, P. Biswas, B. Das
Region Growing Segmentation is a popular segmentation scheme used for real time computer vision applications. All the implementation proposed so far lacks processing speed due to their semi parallel region grow from seed pixels. In this paper we have proposed a fully parallel merging based architecture for region growing. Beside less memory requirement for storing individual labels, the main advantage of this algorithm is its parallel local operations suitable for VLSI cell network based implementation. We have merged two neighboring pixels which have least mutual intensity differences and assigned a dual predicate to each merging pixel. The predicate is selected as minimum and maximum values of two candidate pixels. We have shown in this paper that, execution speed wise our architecture over-performs the contemporary architectures for region growing available in literature without compromising segmentation quality. Also the resource utilization is quite small due to its simple state machine based implementation.
区域增长分割是一种常用的实时计算机视觉分割方法。目前提出的所有实现都是半并行区域从种子像素生长而来,导致处理速度慢。本文提出了一种基于全并行合并的区域增长体系结构。除了存储单个标签所需的内存较少外,该算法的主要优点是其并行局部操作适合基于VLSI小区网络的实现。我们将两个相互强度差最小的相邻像素进行合并,并为每个合并像素分配对偶谓词。谓词被选择为两个候选像素的最小值和最大值。我们在论文中表明,在不影响分割质量的情况下,我们的架构在执行速度方面优于文献中可用的区域增长的当代架构。此外,由于其简单的基于状态机的实现,资源利用率非常低。
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引用次数: 0
Failsafe wireless sensor network using cooperative communication 采用协同通信的Failsafe无线传感器网络
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838436
G. Vadivel, Kapil Mundada, P. Kanjalkar
Wireless sensor networks (WSN) are extensively utilized in many important applications. It is very important that the data from wireless sensor nodes must successfully reach the main location apart from issues related to capacity, coverage and event of failure. In this paper we propose a failsafe wireless sensor network based on the burgeoning concept called cooperative communication. Here the sensor node transmits data to the base station through ZigBee module with the range of 30m. In case where the probabilities for direct communication between the base station and sensor node become unfeasible, two cooperative relay nodes participate for successful transmission of data from sensor node to base station and improve the quality of service in the network even if one of the relay nodes fails which reduces chances in data loss from the sensor node and increases the performance of the system. From experimentation of system for three different cases, successful reception of data at the base station in real-time was achieved through space diversity.
无线传感器网络(WSN)在许多重要应用中得到了广泛的应用。除了与容量、覆盖范围和故障事件相关的问题外,来自无线传感器节点的数据必须成功到达主要位置非常重要。本文提出了一种基于协作通信这一新兴概念的故障安全无线传感器网络。传感器节点通过ZigBee模块向基站传输数据,传输距离为30m。当基站与传感器节点直接通信的概率变得不可行时,两个协同中继节点参与,使数据从传感器节点成功传输到基站,即使其中一个中继节点发生故障,也能提高网络的服务质量,减少传感器节点数据丢失的机会,提高系统的性能。通过三种不同情况下的系统实验,通过空间分集实现了基站实时数据的成功接收。
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引用次数: 0
A triple-band microstrip fed monopole antenna using defected ground structure for WLAN and Wi-MAX applications 采用缺陷接地结构的三波段微带馈电单极天线,用于WLAN和Wi-MAX应用
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838568
S. Oudayacoumar, T. Karthikeyan, V. Hariprasad
A compact triple-band monopole antenna with dimension 30 × 40× 1.6 mm3 fed by a 50 Ω microstrip line is proposed in this paper. The signaling plane consists of a microstrip feed line and a radiating element. The radiating element contains two branches and two stubs. The branches of the radiating element are used to make the circuit to radiate at 2.3 GHz and 3.9 GHz. The stubs help in making the circuit to radiate at 5.3 GHz. Thus the proposed antenna is capable of radiating triple band of frequencies which meets the specifications of WLAN 2.4/5.3 GHz and Wi-MAX 3.9 GHz. The VSWR values are 1.2, 1.9 and 1.1 at 2.3 GHz, 3.9 GHz and 5.3 GHz respectively. The simulated return loss values at the desired frequencies are -19 dB at 2.3 GHz, -25 dB at 3.9 GHz and -38 dB at 5.3 GHz. The ground plane is designed with a defected ground structure with two inverted L shaped strips that helps to enhance the bandwidth of the system. The bandwidth of the proposed triple band antenna are (2.2 - 2.4) GHz, (3.7 - 3.92) GHz and (5.2 - 5.4) GHz. The radiation pattern of the proposed antenna is bi-directional in H-plane and unidirectional in E-plane which is suitable for WLAN and Wi-MAX applications.
本文提出了一种尺寸为30 × 40× 1.6 mm3的紧凑三波段单极天线,采用50 Ω微带线馈电。信号平面由微带馈线和辐射元件组成。辐射元件包含两个分支和两个存根。辐射元件的分支用于使电路在2.3 GHz和3.9 GHz频率下辐射。存根有助于使电路以5.3 GHz的频率辐射。因此,该天线能够辐射三频段的频率,满足WLAN 2.4/5.3 GHz和Wi-MAX 3.9 GHz的规范。在2.3 GHz、3.9 GHz和5.3 GHz时的驻波比分别为1.2、1.9和1.1。期望频率下的模拟回波损耗值分别为2.3 GHz时的-19 dB、3.9 GHz时的-25 dB和5.3 GHz时的-38 dB。接平面采用了两个倒L形带的缺陷接地结构,有助于提高系统的带宽。三频段天线的带宽分别为(2.2 ~ 2.4)GHz、(3.7 ~ 3.92)GHz和(5.2 ~ 5.4)GHz。该天线在h面为双向辐射方向图,在e面为单向辐射方向图,适用于WLAN和Wi-MAX应用。
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引用次数: 9
Neural network based transformer incipient fault detection 基于神经网络的变压器早期故障检测
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838535
Tapsi Nagpal, Y. S. Brar
The most common diagnosis method for power transformer faults is the dissolved gas analysis (DGA) of transformer oil. Various methods have been developed to interpret DGA results such as key gas method, and roger's ratio method. The present approach utilizes IEC 60599 ratio method to discriminate fault in transformers, which is having the advantage of usage of three gas ratios instead of four gas ratios used in other ratio methods. In some cases, the DGA results cannot be matched by the existing codes, making the diagnosis unsuccessful in multiple faults. To overcome this, the authors have proposed the use of neural networks to highlight their ability to detect the incipient faults in transformer.
电力变压器故障最常用的诊断方法是变压器油溶解气体分析(DGA)。各种解释DGA结果的方法已经发展起来,如关键气体法和罗杰比率法。该方法采用IEC 60599比值法进行变压器故障判别,其优点是采用三种气体比,而不是采用其他比值法中的四种气体比。在某些情况下,DGA结果与现有代码不匹配,导致对多个故障的诊断失败。为了克服这个问题,作者提出了使用神经网络来突出其检测变压器早期故障的能力。
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引用次数: 5
Emission constrained unit commitment problem solution using invasive weed optimization Algorithm 基于入侵杂草优化算法的约束约束机组调度问题求解
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838532
B. Saravanan, E. R. Vasudevan
With an increase in environmental considerations over the years, it has become extremely significant to reduce the emission levels in all areas of technology. Likewise, the problem of Unit Commitment (UC), which has always been thought of as a problem to reduce generation cost also involves an added objective of reducing emission levels. This paper presents a new methodology to solve this multi-objective problem. The problem of unit commitment keeping in mind the emission levels has been solved using the evolutionary algorithm of Invasive Weed Optimization (IWO). This proposed algorithm has been tested for two cases, eleven unit twenty four hour systems and eleven unit one sixty eight hour system. Both the results of unit commitment and emission levels have been obtained individually using IWO and the best solution has been achieved by compromising between emission levels and generation cost. This balance has been achieved using trade-off between the two separate solutions. The advantage of this new method gives much more accurate results for both emission and fuel cost which helps in achieving a better optimal solution using trade-offs.
随着多年来对环境考虑的增加,减少所有技术领域的排放水平变得极其重要。同样,一直被认为是降低发电成本问题的单位承诺问题也涉及到降低排放水平的附加目标。本文提出了一种解决多目标问题的新方法。采用入侵杂草优化(IWO)进化算法解决了考虑排放水平的机组承诺问题。该算法已在11个单位24小时制和11个单位68小时制两种情况下进行了测试。利用IWO分别获得了机组承诺和排放水平的结果,并在排放水平和发电成本之间进行了折衷,获得了最佳解决方案。这种平衡是通过在两个独立的解决方案之间进行权衡来实现的。这种新方法的优点是对排放和燃料成本都给出了更准确的结果,这有助于通过权衡获得更好的最佳解决方案。
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引用次数: 8
A straight resonator simulation of SSCN model of TLM based on CUDA platform 基于CUDA平台的TLM SSCN模型的直腔仿真
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838456
M. Toshniwal, A. Kurhade, Abhishek Shendre
In this paper, we have implemented a technique called the Transmission Line Matrix Method in order to calculate the various propagation parameters. TLM includes discretization of 3-D space and accordingly calculate the various parameters. To do this a special geometry called `Super Symmetrical Condensed Node' is used. This method is implemented on the serial platform and the final results are presented in the form of a graph of the transfer function of the simulated resonator i.e. the PSD of output signal for a given input signal. Further, the pivotal considerations for the implementation of this simulator on the CUDA platform are discussed and a proposal for the CUDA implementation is presented.
在本文中,我们实现了一种称为传输线矩阵法的技术来计算各种传播参数。TLM包括三维空间的离散化,并据此计算各种参数。为了做到这一点,使用了一种称为“超对称凝聚节点”的特殊几何形状。该方法在串行平台上实现,最终结果以模拟谐振器的传递函数图的形式表示,即给定输入信号的输出信号的PSD。此外,讨论了在CUDA平台上实现该模拟器的关键考虑因素,并提出了CUDA实现的建议。
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引用次数: 0
Large dispersion and high nonlinearity in silicon nanowire embedded photonic crystal fiber 硅纳米线嵌入光子晶体光纤中的大色散和高非线性
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838466
E. Gunasundari, K. Senthilnathan, S. Sivabalan, A. Abobaker, K. Nakkeeran, P. R. Babu
We design a photonic silicon nanowire embedded microstructured optical fiber which is a special class of waveguide whose core diameter is of subwavelength or nanometer size with the air holes in the cladding. We study the optical waveguiding properties, namely, waveguide dispersions and effective nonlinearity by varying the core diameter. The results reveal that the air-clad silicon subwavelength nanowire exhibits several interesting properties such as a large normal dispersion (82385 ps2/km) for 300 nm core diameter and a large anomalous dispersion (-6817.3 ps2/km) for 500 nm core diameter at 1.95 μm wavelength. The structure provides a large nonlinearity (3648 1/Wm) at 0.450 μm wavelength for 300 nm core diameter. These enhanced optical properties might find suitable for various nonlinear applications that include the generation of few cycle pulses, supercontinuum generation and optical processing.
本文设计了一种芯径为亚波长或纳米级、包层中有气孔的光子硅纳米线嵌入式微结构光纤。我们研究了光波导的特性,即波导色散和有效非线性。结果表明,空气包覆硅亚波长纳米线在1.95 μm波长处具有较大的正常色散(82385 ps2/km)和较大的异常色散(-6817.3 ps2/km)。该结构在0.450 μm波长处具有较大的非线性(3648 1/Wm),芯径为300 nm。这些增强的光学特性可能适用于各种非线性应用,包括产生少周期脉冲、超连续谱和光学处理。
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引用次数: 3
Multi-subband electron mobility in AlGaAs parabolic quantum wells AlGaAs抛物量子阱中的多子带电子迁移率
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838459
S. Palo, N. Sahoo, T. Sahu, A. K. Panda
We analyze the enhancement of multisubband electron mobility in delta-doped AlxGa1-xAs parabolic quantum well structures. We show that mobility is considerably enhanced in a parabolic quantum well compared to that in a square quantum well due to shifting of subband electron wave functions towards the centre of the well through the influence of the parabolic structure potential. We analyse the interplay of different scattering mechanisms on subband mobility mediated by intersubband interactions which leads to interesting results.
我们分析了δ掺杂AlxGa1-xAs抛物量子阱结构中多子带电子迁移率的增强。我们表明,由于子带电子波函数通过抛物线结构势的影响向阱中心移动,与方形量子阱相比,抛物量子阱中的迁移率大大增强。我们分析了由子带间相互作用介导的不同散射机制对子带迁移率的相互作用,得出了有趣的结果。
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引用次数: 0
Pole counter for diametrically magnetized ring or disk magnets 磁极计数器用于直径磁化的环形或圆盘磁体
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838430
S. T. Kumar, Aastha Kapoor, V. Bagyaveereswaran
The ever-mounting applications of magnets in scientific instruments like PMMC, motors point to the importance of magnetic pole study. Apart from parameters like magnetic field intensity, flux density and hysteresis that are commonly used in magnetic study, a count of the number of poles of a magnet can be another useful parameter of study related to a magnet. One of its efficient uses can be of quality check of stators and rotors for correct alignment and number of poles in manufacturing industries. We proposed a low-cost embedded system based method to directly derive at the number of poles of a ring/disk magnet. A direct count of poles could be useful in industries that use multi-pole rotors in motors and also to check the correct alternate pole alignment in the motors. The design of such pole-counter is possible by the optimum application of Faraday's law of electromagnetic induction, signal acquisition and a peak-to-peak counter. Successful results have been demonstrated through the designed prototype.
磁体在PMMC、电机等科学仪器中越来越多的应用表明了磁极研究的重要性。除了磁场强度、磁通密度和磁滞等在磁学研究中常用的参数外,磁体的磁极数是另一个与磁体有关的研究的有用参数。它的一个有效的用途可以是质量检查定子和转子的正确对准和极的数量在制造业。提出了一种基于嵌入式系统的低成本环形/圆盘磁体磁极数直接推导方法。在电机中使用多极转子的工业中,直接计数极可能是有用的,也可以检查电机中正确的交替极对齐。通过优化应用法拉第电磁感应定律、信号采集和峰对峰计数器,可以设计出这种极计数器。通过所设计的样机验证了成功的结果。
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引用次数: 0
Harmonic filter design for line start permanent magnet synchronous motor 线路起动永磁同步电动机谐波滤波器设计
Pub Date : 2014-06-19 DOI: 10.1109/ICAEE.2014.6838503
G. S. Chingale, R. Ugale
The rising preference of permanent magnet synchronous motors (PMSM) over the induction motor (IM) due to its high efficiency, better power factor, power to weight ratio is quite evident in recent industrial trends. The presence of permanent magnets in the rotor initiates the problem of motor harmonics, giving rise to harmonic currents and operational noise of the motor. Considering this problem, a suitable alternative to reduce the harmonics existing in the line start permanent magnet synchronous motor (LS-PMSM) is suggested in this paper.
在最近的工业趋势中,永磁同步电机(PMSM)由于其高效率、更好的功率因数、功率重量比而日益受到感应电机(IM)的青睐。转子中永磁体的存在引发了电机谐波问题,产生了谐波电流和电机的运行噪声。针对这一问题,本文提出了一种合适的方法来降低直线起动永磁同步电动机(LS-PMSM)中存在的谐波。
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引用次数: 2
期刊
2014 International Conference on Advances in Electrical Engineering (ICAEE)
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