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2016 3rd International Conference on Advanced Computing and Communication Systems (ICACCS)最新文献

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Islanding detection technology for grid-connected wind based distributed generation 并网风电分布式发电孤岛检测技术
S. Savitha, N. Kayalvizhi
The islanding operation of DG usually occurs when the wind plant that is the source in the DG, still makes a section of the page distribution according to this section has been disconnected from the service program source. Distribution of the feeder islands with power DG are usually not required. In the proposed method, the q-axis current in the inverter is measured and the current controller is modeled with a continuous periodic Reference power from a small value. The possibility of false detection is eliminated through the affirmation of the occurrence of islanding as soon as it is suspected. DG is a islanded from the upstream system, if the frequency variation is occur in a small value due to a change in the inverter current. The proposed algorithm detects the island grid formation in the stable condition of the system. Computer simulation is done with MATLAB.
分布式发电机组的孤岛运行通常发生在作为分布式发电机组中的电源的风电场,仍按该部分的页面分布与服务程序源断开时。通常不需要分配带有电力DG的支线岛屿。在该方法中,测量逆变器中的q轴电流,并以一个小值的连续周期参考功率对电流控制器进行建模。一旦怀疑出现孤岛,通过对其发生的确认,消除了误检的可能性。DG是一个孤立于上游系统,如果频率变化发生在一个小的值,由于逆变器电流的变化。该算法在系统稳定状态下检测孤岛网格的形成。利用MATLAB进行了计算机仿真。
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引用次数: 2
Weighted Mean Filter for removal of high density Salt and Pepper noise 加权均值滤波器用于去除高密度的盐和胡椒噪声
Neela Chithirala, B. Natasha, N. Rubini, Anisha Radhakrishnan
The essential constraint on the input images to any computer vision technology is its quality. Acquiring noise free digital images is a challenge as it depends on several factors. Developing algorithms to remove noise is one way to improve the image quality. Salt and pepper noise degrades the image. The challenge here is to restore the lost information without distorting the edges. This paper introduces a new algorithm that reduces high density salt and pepper noise from images. Restoration is done by calculating the weighted mean of the nearby pixels. Weights are assigned unsymmetrically to pre-processed and unprocessed pixels. The quality was judged based on the PSNR value. The algorithm restores information for highly corrupted images. Salt and pepper noise are usually filtered with variants of the median filter. This paper provides an alternate way for noise reduction.
对任何计算机视觉技术来说,输入图像的本质约束是其质量。获取无噪声的数字图像是一个挑战,因为它取决于几个因素。开发去除噪声的算法是提高图像质量的一种方法。椒盐噪声会降低图像的质量。这里的挑战是在不扭曲边缘的情况下恢复丢失的信息。本文介绍了一种去除图像中高密度椒盐噪声的新算法。恢复是通过计算附近像素的加权平均值来完成的。权重不对称地分配给预处理和未处理的像素。根据PSNR值判断质量。该算法为高度损坏的图像恢复信息。盐和胡椒噪声通常用中值滤波器的变体来过滤。本文提供了另一种降噪方法。
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引用次数: 9
Message from principal 校长寄语
Sudha Mohanram
It gives me great pleasure to welcome you to the Third International Conference - ICACCS 2016. This Technical International Conference will provide a prestigious international platform by bringing together local and overseas technical researchers and students to exchange their experienced knowledge and expertise issues relating to the dominating technology trends.
我很高兴欢迎大家参加第三届ICACCS 2016国际会议。是次国际技术会议将提供一个享有盛誉的国际平台,汇集本地及海外的技术研究人员和学生,就主要的技术趋势交流他们的经验和专业知识。
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引用次数: 0
Design and simulation of modified selective XOR algorithm for payload attrition in CAN CAN有效载荷磨损改进选择性异或算法的设计与仿真
S. K. Kabilesh, B. Kumar
The controller area network is widely used in automobile electronics networking and for low cost embedded systems. Nondeterministic response time have restricted the wider use of CAN in safety critical real time system applications, since the CAN protocol uses “non return to zero” (NRZ) coding and includes automatic bit stuffing mechanism for synchronization. Automatic error detecting bit stuffing mechanism causes the can data length variation to complex function. As a results jitter occurs in receiver clock and length of the data will vary message to message based on stuffed bits. Utilization of bandwidth becomes difficult with addition of stuff bits. It also affects the real time behavior of the system employing in this protocol. In this paper a new algorithm (modified selective XOR algorithm) is proposed and simulate on Matlab Simulink vehicle network model which is able to guarantee stuff bits free data field during transmission. Efficiency, net bit rate of the CAN transmission is being improved by this technique.
控制器局域网广泛应用于汽车电子网络和低成本嵌入式系统。由于CAN协议使用“不归零”(NRZ)编码,并且包含自动位填充机制来实现同步,因此不确定的响应时间限制了CAN在安全关键实时系统应用中的广泛应用。自动检错位填充机制使罐头数据长度变化为复杂函数。因此,接收器时钟出现抖动,数据的长度将根据填充位的不同而变化。随着数据位的增加,带宽的利用变得困难。它还会影响使用该协议的系统的实时行为。本文提出了一种新的算法(改进的选择性异或算法),并在Matlab Simulink车载网络模型上进行了仿真,该算法能够保证传输过程中数据场的任意位。该技术提高了CAN传输的效率和净比特率。
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引用次数: 6
Survey on energy efficient load-balanced clustering algorithm based on variable convergence time for wireless sensor networks 基于变收敛时间的无线传感器网络节能负载均衡聚类算法研究
A. Krishnakumar, V. Anuratha
Wireless sensor network contains a number of tiny sensors to get data from the surface where it deployed. Continuous data transfer is done in this network through cluster head and maintaining the energy level for the nodes is an essential task. Clustering is done to increase energy of the node to some certain period. Load balancing using clustering can increase the network scalability. This paper surveys on available load balanced clustering based on variable convergence time algorithms of wireless sensor networks.
无线传感器网络包含许多微小的传感器,从部署的地面获取数据。该网络通过簇头完成连续的数据传输,保持节点的能量水平是一个重要的任务。聚类是为了将节点的能量增加到某一时间段。使用集群实现负载平衡可以提高网络的可伸缩性。研究了无线传感器网络中基于可变收敛时间算法的可用负载均衡聚类。
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引用次数: 5
Optimal sizing of Wind/Solar/Hydro in an isolated power system using SMUGF based FPA 基于SMUGF的FPA在孤立电力系统中优化风/太阳能/水电的尺寸
Manohar Potli, Y. Damodharam, J. Balachandra
Renewable Energy Resources like Wind, Solar, Biomass, Tidal, Hydropower and Geothermal constitute a type of power generation and received much attention as alternatives for conventional power generation. Renewable Energy Resources (RER) will help to mitigate the emission of green house gases. In this paper, a study on reliability constrained optimization of an isolated power system is carried out. It consists of 25-kW Wind unit, 10-kW solar unit and 10-kW Hydro unit. Hourly speed of wind, solar radiation and water discharge and load profile is obtained using data synthesizer. Firstly, combined Semi-Markov and Universal Generating Function (SMUGF) models for the wind speed, solar irradiation, water availability and load profile with transitions among all states are formulated. Then the reliability constraint Loss of Load Probability (LOLP) is obtained from Aggregate SMUGF model. The objective function with cost and number of units and reliability constraint is formulated. Cost minimization and optimal sizing is performed using Flower Pollination Algorithm (FPA). All the above analysis is carried out in MATLAB 2014b software. A comparison of results between the algorithms will be presented and analyzed.
风能、太阳能、生物质能、潮汐能、水能、地热能等可再生能源是发电的一种,作为常规发电的替代品而受到广泛关注。可再生能源(RER)有助于减少温室气体的排放。本文对孤立电力系统的可靠性约束优化问题进行了研究。它由25千瓦的风力发电机组、10千瓦的太阳能发电机组和10千瓦的水力发电机组组成。利用数据合成器获得了每小时风速、太阳辐射量和水量及负荷剖面。首先,建立了风速、太阳辐照、水分利用和负荷分布的半马尔可夫和通用生成函数(SMUGF)组合模型。然后从总体SMUGF模型中得到可靠性约束载荷损失概率(LOLP)。建立了具有成本、单元数和可靠性约束的目标函数。使用花授粉算法(FPA)实现成本最小化和最优尺寸。以上分析均在MATLAB 2014b软件中进行。本文将介绍和分析两种算法的比较结果。
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引用次数: 3
Remote sensing for UREA Spraying Agricultural (UAV) system 农业尿素喷洒(UAV)系统遥感研究
S. Meivel, K. Dinakaran, N. Gandhiraj, M. Srinivasan
New technologies are launching on every day in Indian agriculture. But it is expensive and high power consumption. We proposed a reliable system with low power usage and introduced an agricultural engineering project that is known as UREA spraying system using Unmanned Aerial Vehicle. That is rapidly upcoming method for remote-sensing data acquisition, mostly aerial green field images and derived products. By now, the systems are less weight and cost-effective, the improvement of the sensors and their good enable a relative safe operation with good satisfaction of customer. This Project introduced a high-performance quad-rotor model that is built around a high implementation, which is all direction (0°-360°) supports with high payloads through less weight materials and advanced brush-less BLDC motors. The UAV is 1.8m in diameter, weighs 3litre in total, and generates a maximum lift of 8 kg. Without payload the maximum flying time is around 60min. The UAV programmed using Arduino through network. The UAV solve the problem using RTOS for any critical situation. The paper also focuses to land edge detection, atmospheric climate detection through camera required to obtain accurate remote sensing products that are useful for plants monitoring and Urea Spraying equally to each ground in sector-wise. UAV speed is 100m/minute. UAV spraying time is 1 hour/acre with 4 rounds. UAV carrying weight is 5 liter of urea content. It has Manual mode for manual operation and auto mode for repeated operations. Arduino Controller is used for UAV lifting control and BLDC motor controller. We have designed four BLDC motor and designed a micro-strip patched antenna of RF transmitter with 2.919GHz for controlling the payload. This paper mainly proposed to Improvement in weight lifting capacity may leads to adding a more function in account of UAVs. The payload of our Quad-rotor is around from 1 litre to 5 litre water content which adds function of weight lifting in Agricultural fields for Urea spraying operations.
印度农业每天都在推出新技术。但它价格昂贵,功耗高。我们提出了一个可靠的低功耗系统,并介绍了一个农业工程项目,即无人机尿素喷洒系统。这是即将到来的遥感数据获取方法,主要是空中绿地图像及其衍生产品。到目前为止,系统重量轻,成本低,传感器的改进和良好的性能使系统运行相对安全,用户满意度高。本项目介绍了一种高性能四旋翼模型,该模型围绕高实现度构建,通过轻重量材料和先进的无刷无刷直流电机实现高有效载荷的全方向(0°-360°)支撑。无人机直径1.8米,总重量3升,最大升力8公斤。没有有效载荷的最大飞行时间约为60分钟。利用Arduino通过网络对无人机进行编程。无人机利用实时操作系统解决任何紧急情况下的问题。本文还重点介绍了陆地边缘检测,通过相机进行大气气候检测,以获得准确的遥感产品,这些产品对植物监测和尿素喷洒在每个地面部门都是有用的。无人机速度为100米/分钟。无人机喷洒时间为1小时/英亩,共4发。无人机携带重量为5升尿素含量。手动操作有手动模式,重复操作有自动模式。无人机升降控制采用Arduino控制器,无刷直流电机控制器。设计了4台无刷直流电机,并设计了一个2.919GHz的微带贴片天线用于控制射频发射机的有效载荷。本文主要提出了提高无人机的起重能力可能会导致无人机增加更多的功能。我们的四旋翼的有效载荷约为1升至5升的含水量,这增加了农业领域尿素喷洒作业的举重功能。
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引用次数: 17
An ultra-low area and full-swing output 3T XNOR gate using 45nm technology 采用45nm技术的超低面积全摆幅输出3T XNOR栅极
S. Jayanth, M. Poorvi, M. Sunil
In this research paper we are presenting a new idea of a 3 transistor Exclusive NOR (XNOR) gate that produces low power and high performance with more noise immunity. The main aim of this research is to achieve maximum output voltage swing with improved delay, power and power delay product compared to the previous designs. The pre-simulation of the design is performed using Cadence EDA tool of 45nm technology.
在本文中,我们提出了一种低功耗、高性能、抗噪能力强的3晶体管专用NOR (XNOR)栅极的新思路。本研究的主要目的是实现最大的输出电压摆幅,并与以前的设计相比,改进了延迟、功率和功率延迟产品。利用Cadence 45nm工艺的EDA工具对设计进行了预仿真。
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引用次数: 2
Particle swarm optimization of Fuzzy logic controller for voltage sag improvement 改进电压暂降的模糊控制器粒子群算法
A. Nabi, N. A. Singh
In this paper improvement in voltage sag by using PSO optimized fuzzy controller is described. Dstatcom is the FACTS device used in voltage sag improvement. Particle swarm optimization (PSO) is used to optimize the if then rules of the fuzzy controller. In this system a Dstatcom is placed in a three phase system to control the voltage sag. A fuzzy controller is designed to control the output of Dstatcom. The whole system is simulated using MATLAB Simulink. The fuzzy controlled Dstatcom output is compared with a PI controlled Dstatcom output. The system without Dstatcom is also simulated using MATLAB Simulink. The fuzzy controller rules are optimized using particle swarm optimization and the results are also compared with other systems.
本文介绍了采用粒子群优化模糊控制器改善电压暂降的方法。Dstatcom是用于改善电压暂降的FACTS设备。采用粒子群算法对模糊控制器的if - then规则进行优化。在该系统中,Dstatcom被放置在三相系统中以控制电压暂降。设计了模糊控制器来控制Dstatcom的输出。利用MATLAB Simulink对整个系统进行了仿真。将模糊控制的Dstatcom输出与PI控制的Dstatcom输出进行比较。在没有Dstatcom的情况下,利用MATLAB Simulink对系统进行了仿真。采用粒子群算法对模糊控制器规则进行了优化,并与其他系统进行了比较。
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引用次数: 5
Quality assessment of Median filtering techniques for impulse noise removal from digital images 数字图像脉冲噪声去除中值滤波技术的质量评价
Sunil Khatri, H. Kasturiwale
Impulse noise still poses challenges in front of researchers today. The removal of impulse noise brings blurring which leads to edges being distorted and image thus being of poor quality. Hence the need is to preserve edges and fine details during filtering. The proposed method consists of noise detection and then removal of detected noise by Improved Adaptive Median Filter using pixels that are not noise themselves in gray level as well as colour images. The pixels are split in two groups, which are noise-free pixels and noisy pixels. In removing out Impulse noise, only noisy pixels are processed. The noiseless pixels are then sent directly to the output image. The proposed method adaptively changes the masking matrix size of the median filter based on the count of the noisy pixels. Computer simulation and analysis have been carried out eventually to analyse the performance of the proposed method with that of Simple Median Filter (SMF), Simple Adaptive Median Filter (SAMF) and Adaptive Switched Median Filter (ASMF). The proposed filter proves to be more efficient in terms of both objective and subjective parameters.
如今,脉冲噪声仍然是研究人员面临的挑战。脉冲噪声的去除会导致图像模糊,从而导致图像边缘失真,图像质量下降。因此,需要在滤波过程中保留边缘和精细细节。提出的方法包括噪声检测,然后使用改进的自适应中值滤波器去除检测到的噪声,该滤波器使用灰度和彩色图像中本身不是噪声的像素。像素被分成两组,即无噪声像素和有噪声像素。在去除脉冲噪声时,只处理有噪声的像素。然后将无噪声像素直接发送到输出图像。该方法根据噪声像素的计数自适应地改变中值滤波器的掩蔽矩阵大小。最后进行了计算机仿真和分析,与简单中值滤波器(SMF)、简单自适应中值滤波器(SAMF)和自适应切换中值滤波器(ASMF)的性能进行了比较。在客观参数和主观参数方面,所提出的滤波器都具有更高的效率。
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引用次数: 12
期刊
2016 3rd International Conference on Advanced Computing and Communication Systems (ICACCS)
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