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2020 4th International Conference on Electronics, Communication and Aerospace Technology (ICECA)最新文献

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Control of Standalone DFIG based Wind Turbine Generator using Machine Learning Algorithm 单机DFIG风力发电机的机器学习控制
R. Mahalakshmi, K. Reddy, M. Gautam
Electrical energy extraction from non-conventional energy sources such as solar, wind, etc., is very essential nowadays due to the huge electricity demand. The integration of these sources into the grid/electrical loads face many technical challenges like grid synchronization, power oscillations, etc., The modern wind power plants use Doubly Fed Induction Generator (DFIG) based WTGs as it has embedded Rotor Side Converter (RSC) and Stator Side Converter (SSC). This paper focuses on the performance analysis of standalone Doubly Fed Induction Generator (DFIG) based Wind Turbine using a new control strategy at RSC side. The RSC control is developed with the use of a linear regression algorithm under the Machine Learning (ML) technique. The effectiveness of the controller is validated using MATLAB/Simulink for the different operating conditions such as varying wind speed and load variations etc., The experimental setup of RSC is implemented in hardware and the results are discussed.
由于目前巨大的电力需求,从太阳能、风能等非常规能源中提取电能是非常必要的。将这些源集成到电网/电力负载中面临许多技术挑战,如电网同步,功率振荡等。现代风力发电厂使用基于双馈感应发电机(DFIG)的wtg,因为它嵌入了转子侧变流器(RSC)和定子侧变流器(SSC)。本文研究了采用RSC侧控制策略的单机双馈感应发电机(DFIG)风力发电机组的性能分析。RSC控制是利用机器学习(ML)技术下的线性回归算法开发的。利用MATLAB/Simulink验证了该控制器在变风速、变负荷等不同工况下的有效性,并在硬件上实现了RSC的实验装置,并对实验结果进行了讨论。
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引用次数: 2
Design and Implementation of Multiple PWM Channels using Universal Asynchronous Receiver Transmitter 多PWM通道通用异步收发器的设计与实现
Shikhar
Universal Asynchronous Receiver Transmitter (UART) is a communication protocol used for sending and receiving the serial data. It offers short distance communication and it is reliable as well. This paper presents the application of UART module for creating Multiple Pulse Width Modulation (PWM) channels having different duty cycles using serial terminal on Field Programmable Gate Arrays (FPGA). The user can control the duty cycle of the PWM signals through serial terminal. UART module designed for this application features technique for baud rate detection. The design has been synthesized using Verilog Hardware Description Language (HDL) on Lattice Mach XO2 FPGA over a Tiny FPGA A2 module using Lattice Diamond Design software. A Printed Circuit Board (PCB) has been designed to observe the effects of PWM signals with different duty cycles over multiple Light Emitting Diodes (LEDs). The design is verified through simulations and logic analyzer tool. Effects of PWM signals is also observed through the intensity of Multiple LEDs. Maximum frequency that can be obtained on Lattice Mach XO2 FPGA is 133 MHz. The design uses 12.08 MHz frequency for the system clock.
通用异步收发器(UART)是一种用于发送和接收串行数据的通信协议。它提供短距离通信,而且很可靠。本文介绍了UART模块在现场可编程门阵列(FPGA)上利用串行终端创建具有不同占空比的多个脉宽调制(PWM)通道的应用。用户可以通过串口控制PWM信号的占空比。为此设计的UART模块具有波特率检测技术。该设计采用Verilog硬件描述语言(HDL)在Lattice Mach XO2 FPGA上,利用Lattice Diamond design软件在一个微型FPGA A2模块上进行了综合。设计了一个印刷电路板(PCB)来观察不同占空比的PWM信号在多个发光二极管(led)上的影响。通过仿真和逻辑分析工具对设计进行了验证。PWM信号的影响也可以通过多个led的强度观察到。在Lattice Mach XO2 FPGA上可以获得的最大频率为133 MHz。本设计采用12.08 MHz频率作为系统时钟。
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引用次数: 0
Improved Trust Model based on Centrality Measures and Recommendation in Social Network 基于社交网络中心性度量和推荐的改进信任模型
Aseel Hussein Zahi, Dr. Saad Talib Hasson
In this article, a model is developed to improve trust value in the relations that represents social networks by utilizing centrality measures interred with all participants in network-based and recommendations, both on connection or trust. Various central metrics were discussed and implemented to intend to trust. Algorithms are provided to facilitate their calculations. The referral neighbor that has a guaranteed trust boundary is chosen. Trust Value based on Interaction and Recommendations using Centrality Metric (TVIRCM) method is proposed and implemented in this study to improve trust value in the social network when the link between any two nodes represent the unique indication about trust whereas, there are no other standards for maintaining trust. Trust based on interaction refers to trust calculations based on real links observations and exploits the centrality metric. Trust based on recommendation refers to trust calculation based on trust participants of a remote neighbor about other participants.The developed approach is utilized in a trust observation phase as a trust-based interaction (i.e. assigned high and low centrality metrics), then the next phase is based on the proposed recommendation (i.e. the remote neighbor may have certain trust value) and the last phase is the trust calculation phase which based on combining direct and indirect trust.
在本文中,我们开发了一个模型,通过利用基于网络和推荐的所有参与者在连接或信任方面进行的中心性度量,来提高代表社交网络的关系中的信任价值。讨论和实现了各种中心指标以意图信任。提供算法以方便其计算。选择具有保证信任边界的引用邻居。本文提出并实现了基于中心性度量的基于交互和推荐的信任价值(TVIRCM)方法,以提高社会网络中任何两个节点之间的链接代表信任的唯一指示,而没有其他标准来维持信任。基于交互的信任是指基于真实链接观察的信任计算,并利用了中心性度量。基于推荐的信任是指基于远端邻居的信任参与者对其他参与者的信任计算。该方法首先在信任观察阶段作为基于信任的交互(即分配高低中心性指标),然后根据提出的建议(即远程邻居可能具有一定的信任值)进行下一步,最后是基于直接信任和间接信任相结合的信任计算阶段。
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引用次数: 1
An Improvised Analysis in the Parameter of a Conventional Microstrip Patch Antenna for 5G Communication 5G通信中传统微带贴片天线参数的临时分析
P. Patel, D. K. Meda
In this proposed work, an improvised analysis in the parameter of a conventional Microstrip Patch Antenna for 5G is reviwed. In this design of the antenna is modified for the better gain and return loss with the best possible result using simulation software (HFSS-19.2). The performance of the antenna has been measured and compared to analyze in terms of gain, the return loss, radiation pattern and bandwidth at 28 GHz operating frequency.
在这项工作中,对传统的5G微带贴片天线的参数进行了临时分析。在本设计中,利用HFSS-19.2仿真软件对天线进行了改进,以获得更好的增益和回波损耗,并取得了最好的效果。对天线在28ghz工作频率下的增益、回波损耗、辐射方向图和带宽等性能进行了测量和比较分析。
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引用次数: 0
Pixel based method for Text to Image Encryption 基于像素的文本到图像加密方法
K. Malathi, R. Kavitha, M. Liza
Normally, the encryption and decryption is done only to convert the text into an encrypted form (i.e.) the confused form of text. In this type of method a hacker may easily hack the text using the public key or private key. So in this paper a new technique called Text to image encryption has been proposed. This will convert the plain text or information into an image format. That image will hide the encrypted text. If the user wants to view the text, first the image is divided into blocks. Each color component will be modified using the secret key. It will be difficult to the hackers to hack the information. This method can be used for large set of databases.
通常,加密和解密只是为了将文本转换为加密形式(即混淆形式的文本)。在这种类型的方法中,黑客可以很容易地使用公钥或私钥破解文本。为此,本文提出了一种新的文本到图像加密技术。这将把纯文本或信息转换成图像格式。该图像将隐藏加密文本。如果用户想要查看文本,首先将图像分成块。每个颜色组件将使用密钥进行修改。黑客很难破解这些信息。该方法可用于大型数据库集。
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引用次数: 3
Artificial Bee Colony assisted Spectrum Sharing Scheme for NOMA based Cognitive Radio Networks 基于NOMA认知无线网络的人工蜂群辅助频谱共享方案
K. Sultan
In this paper, a cooperative spectrum sharing scheme is proposed for NOMA based cognitive radio networks comprising of primary and secondary networks. The primary network consists of a primary transmitter PT communicating with a primary receiver PU, whereas the secondary network consists of a NOMA based secondary transmitter ST communicating with L secondary users SUs. The primary terminals are separated far apart therefore ST provides assistance as a relay in order to enable their end-to-end communication. Each terminal is equipped with a single antenna therefore end-to-end communication is accomplished in two time-slots. In first timeslot, PT transmits its signal to ST and at the same time one best SU retransmits the primary signal of the last frame to PU. In second time-slot, ST transmits the superimposed signals of primary and secondary networks. In this scenario, sum rate of SUs is maximized while ensuring to guarantee the QoS of PU. Artificial Bee Colony (ABC) global optimization algorithm is employed to solve this transmit power allocation problem which quickly converged to the best solution.
本文提出了一种基于NOMA的由主从网组成的认知无线网络的协同频谱共享方案。主网络由一个与主接收器PU通信的主发射机PT组成,而辅助网络由一个基于NOMA的辅助发射机ST与L个辅助用户su通信组成。主终端相距很远,因此ST作为中继提供帮助,以实现端到端通信。每个终端配备一个天线,因此端到端通信在两个时隙中完成。在第一个时隙中,PT将其信号发送给ST,同时一个最佳SU将最后一帧的主信号重传给PU。在第二个时隙中,ST传输主网和辅网的叠加信号。在保证PU的QoS的同时,最大限度地提高了su的和速率。采用人工蜂群(Artificial Bee Colony, ABC)全局优化算法求解该发射功率分配问题,该算法快速收敛到最优解。
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引用次数: 0
Detection of Arrhythmia using ECG waves with Deep Convolutional Neural Networks 基于深度卷积神经网络的心电波检测心律失常
A. Gowtham, L. Anirudh, B. Sreeja, BA Aakash, S. Adittya
If there is an availability of technological medical electronic devices to classify heart disease, it would absolutely change the future in terms of making it more economical and qualitative for all the people suffering from heart-related ailments. With the increasing medical expenses and non-affordability of the poor families, it becomes logical to design a system that can detect heart disease in particular Arrhythmia, without higher expense. Recently, the Cardiovascular systems are evaluated more reliably by using Electrocardiogram (ECG) waves. This project in particular is designed to check for any irregularities in heart beats, which is represented in the variations of an ECG wave, and then compared it with normal beats to detect Arrhythmia. The electronics behind this project is Raspberry Pi and ADS1115, an ADC, which converts the real-time, analog ECG wave signal into a digital wave with the help of heart rate sensor-AD8232, and a three-lead system. A normalized wave is fed into the deep convolutional neural network to predict the output into one of the 5 different categories. Furthermore, the ADASYN – Adaptive Synthetic Sampling - algorithm is used to effectively classify the disease in accordance with the MIT-BIH dataset.
如果有一种技术医疗电子设备可以对心脏病进行分类,它绝对会改变未来,使所有患有心脏相关疾病的人更经济、更有质量。随着医疗费用的增加和贫困家庭的负担能力,设计一种可以检测心脏病,特别是心律失常的系统,而不增加费用是合乎逻辑的。近年来,利用心电图波对心血管系统进行了较为可靠的评估。这个项目特别设计用于检查任何心律失常,这表现在心电图波的变化中,然后将其与正常心跳进行比较,以检测心律失常。该项目背后的电子器件是树莓派和ADS1115, ADS1115是一个ADC,可以在心率传感器ad8232和三导联系统的帮助下将实时模拟心电波信号转换为数字波。将归一化波输入深度卷积神经网络,以预测输出到5个不同类别之一。此外,根据MIT-BIH数据集,采用ADASYN - Adaptive Synthetic Sampling -算法对疾病进行有效分类。
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引用次数: 3
Design of Low Power & High Speed Comparator of SAR ADC using 180nm Technology 基于180nm技术的SAR ADC低功耗高速比较器设计
Harshita kushwah, R. Gamad, R. Gurjar
Low power and high-speed comparator design are presented in this article. Design is intended for the implementation of SAR ADC. The advantage of the proposed design can minimize power dissipation and maximize speed in SAR ADC. Simulation results are obtained in 0.18um Technology in the cadence tool. This design exhibit improved accuracy and less power consumption about 129.8$mu mathrm{W}$ with sampling frequency 100MHz and 1.8V supply. Prior work done is compared with simulated results and progress is also marked in present work.
本文介绍了低功耗高速比较器的设计。设计的目的是为了实现SAR ADC。该设计的优点是可以使SAR ADC的功耗最小化,速度最大化。仿真结果在0.18um技术的节拍工具中得到。该设计在采样频率100MHz和1.8V电源下,精度得到了提高,功耗约为129.8$mu mathm {W}$。将之前的工作与模拟结果进行了比较,并对当前工作的进展进行了标记。
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引用次数: 0
A Comparative Study of Activation Functions and Training Algorithm of NAR Neural Network for Crop Prediction 作物预测中NAR神经网络激活函数与训练算法的比较研究
V. Kaleeswaran, S. Dhamodharavadhani, R. Rathipriya
The proposed study in this paper provides long-term crop prediction for Tamilnadu, India. Nonlinear Autoregressive (NAR) Neural Network (NN) with different parameter settings has been used to facilitate the correct quality and quantity of crop production. At the core of this study is to compare the effect of training algorithms (such as trainlm, trainbr, trainscg, traincgf, trainbfg, traincgf) and activation functions (such as tansig, elliotsig, logsig and purelin) in the performance of the crop yield forecasting model. This study showed that activation functions elliotsig and tansig with the training algorithm trainbr of NARNN delivered the most promising results based on the smallest error between actual and predicted value compared to the other activation and training functions of NARNN.
本文提出的研究为印度泰米尔纳德邦提供了长期作物预测。采用不同参数设置的非线性自回归(NAR)神经网络(NN)来促进作物生产的正确质量和数量。本研究的核心是比较训练算法(如trainlm、trainbr、trainscg、traincgf、trainbfg、traincgf)和激活函数(如tansig、elliotsig、logsig和purelin)对作物产量预测模型性能的影响。本研究表明,与NARNN的其他激活和训练函数相比,使用训练算法trainbr的激活函数elliotsig和tansig在实际与预测值之间误差最小的基础上获得了最有希望的结果。
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引用次数: 5
Machine Learning Techniques for Depression Analysis on Social Media- Case Study on Bengali Community 社交媒体上抑郁症分析的机器学习技术——以孟加拉社区为例
Debasish Bhattacharjee Victor, Jamil Kawsher, Md Shad Labib, Subhenur Latif
Depression is a prevalent illness in todays society. It changes and influences our entire method of thought and our emotional, cognitive, and everyday behavioral behaviors. It affected over 264 million people, and the proportion increases every day. Mainly when it lasts for a prolonged time, it becomes a severe issue or health topic. It leads the trustworthy person to also malfunction, and that person commits suicide in his final position. There are several causes for depression, though social networking like Facebook, Twitter, and other networking plays a critical role in getting us more depressed. Most people in Asia use Facebook, Twitter, and various chat applications, and there they express their emotions. That is why our research initiative picks social media. Some work has been done on depression but depression detection on the Bengali community is done very rarely. So it has become a strong demand for today. The social media has intialted a study based on depression, tweets, and numerous chat app responses, and gathered Bengali data and projected depression posts and commentaries. Diverse approaches of machine learning have been used to evaluate these data and forecast depression and for algorithm purpose Support vector machine, Random Forest, Decision Tree, K-Nearest Neighbors, Naive Bayes (Multinomial Naive Bayes), Logistic Regression has been used. The desired results can be obtained by adding those algorithms. Moreover, different algorithms send us different results as trends were common, but ultimately the precision was the same for all algorithms applied to our dataset.
抑郁症是当今社会的一种普遍疾病。它改变并影响着我们的整个思维方式以及我们的情感、认知和日常行为。它影响了超过2.64亿人,而且这一比例每天都在增加。主要是当它持续很长一段时间,它成为一个严重的问题或健康话题。它导致值得信赖的人也失灵,那个人在他最后的位置上自杀。导致抑郁的原因有很多,尽管像Facebook、Twitter和其他社交网络在让我们更抑郁方面起着关键作用。大多数亚洲人使用Facebook、Twitter和各种聊天应用程序,他们在那里表达自己的情绪。这就是为什么我们的研究计划选择了社交媒体。已经有一些关于抑郁症的研究,但对孟加拉社区的抑郁症检测却很少。所以它已经成为今天的强烈需求。这家社交媒体已经启动了一项基于抑郁症、推文和大量聊天应用回复的研究,并收集了孟加拉数据,预测了抑郁症的帖子和评论。机器学习的各种方法已被用于评估这些数据和预测抑郁,并用于算法目的支持向量机,随机森林,决策树,k近邻,朴素贝叶斯(多项朴素贝叶斯),逻辑回归已被使用。将这些算法加在一起可以得到期望的结果。此外,不同的算法给我们不同的结果,因为趋势是共同的,但最终精度是相同的所有算法应用到我们的数据集。
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引用次数: 8
期刊
2020 4th International Conference on Electronics, Communication and Aerospace Technology (ICECA)
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