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2018 Emerging Trends in Electronic Devices and Computational Techniques (EDCT)最新文献

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Bandpass filters using multilayered microstrip structures 采用多层微带结构的带通滤波器
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405065
S. R. Choudhury, Aditi Sengupta, Santanu Das
The behaviour of the microstrip line structures at the different layers of the substrates, offers an area of research with growing interest. This filter is developed by a conventional three-pole open circuited stub microstrip lowpass filter structure, which shows abrupt change in its behaviour when incorporated with more than one layers of substrates. The additional substrate has wide gap microstip edge coupled lines. These structures provide additional overlapped coupling and cross coupling between two layers, except for the coupling effect on the same layer. The designed filter demonstrates the frequency characteristics with central frequency f0 of 2.28 GHz, insertion loss of 0.2 dB and 35 % FBW.
微带线结构在衬底的不同层的行为,提供了一个研究领域与日益增长的兴趣。该滤波器是由传统的三极开路短线微带低通滤波器结构开发的,当与多层衬底结合时,其行为会发生突变。附加衬底具有宽间隙微缝边缘耦合线。这些结构在两层之间提供额外的重叠耦合和交叉耦合,除了在同一层上的耦合效应。该滤波器的中心频率为2.28 GHz,插入损耗为0.2 dB, FBW为35%。
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引用次数: 4
Microcontroller based low cost gas leakage detector with SMS alert 基于单片机的低成本短信报警气体检测仪
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405094
Arijit Banik, B. Aich, Suman Ghosh
Gas leakage is a major problem with industrial sector, residential areas and gas driven vehicles like CNG (Compressed Natural Gas) buses, cars etc. One of the preventive methods to stop accidents related with the gas leakage is to install a gas leakage detection device at permeable places. The aim of this project is to develop such a device that can automatically detect and stop gas leakages in those permeable areas. The system detects the leakage of the LPG (Liquefied Petroleum Gas) using a gas sensor and uses the GSM to alert the person about the gas leakage via SMS. When the LPG concentration in the air exceeds a predetermined level, the gas sensor senses the gas leakage and the output of the sensor goes LOW. This is detected by the microcontroller and the LED and buzzer are turned ON simultaneously. The system then alerts the customer by sending an SMS to the specified mobile-phone.
天然气泄漏是工业部门、居民区和天然气驱动车辆(如压缩天然气公交车、汽车等)的主要问题。防止与气体泄漏有关的事故的预防方法之一是在透气性强的地方安装气体泄漏检测装置。该项目的目的是开发这样一种装置,可以自动检测和阻止这些渗透区域的气体泄漏。该系统通过气体传感器检测LPG(液化石油气)的泄漏,并通过GSM通过短信提醒人们气体泄漏。当空气中的LPG浓度超过预定水平时,气体传感器检测到气体泄漏,传感器输出变为LOW。这是由微控制器检测和LED和蜂鸣器同时打开。然后,系统通过向指定的移动电话发送短信来提醒客户。
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引用次数: 26
An implementation of a lightweight end-to-end secured communication system for patient monitoring system 一种用于患者监护系统的轻量级端到端安全通信系统的实现
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405076
F. Chowdhury, Asif Istiaque, A. Mahmud, Mohammad Miskat
Securing wireless body area network (WBAN), which is often used for collecting precious patient's data, is an inevitable challenge in a modern patient monitoring system (PMS). In general, a PMS consists of several network segments, starting from a WBAN to the user's access network via a server where the patients' data is stored. Apart from the communication links between the WBAN gateway and the server, and between the server and the user's device, the wireless link between the body sensors and the gateway remains susceptible to threat by eavesdropper or malicious users. Moreover, the sensor nodes are often battery powered and thus cannot be overloaded with highly computational algorithms and protocols. In this context, we develop and implement an end-to- end secure PMS by emphasizing on securing sensor to gateway wireless link with a lightweight encryption protocol that will consume minimal energy. In addition, we use MQ telemetry transport (MQTT) as a transport protocol rather than hypertext transport protocol (HTTP) for its simplicity and lightweight features. The encrypted sensor data thus transported and stored in the server from where an authentic user access the data and decrypt it.
无线体域网络(WBAN)通常用于收集宝贵的患者数据,其安全性是现代患者监护系统(PMS)中不可避免的挑战。一般来说,PMS由几个网段组成,从WBAN到通过存储患者数据的服务器的用户接入网。除了WBAN网关与服务器之间、服务器与用户设备之间的通信链路外,人体传感器与网关之间的无线链路仍然容易受到窃听者或恶意用户的威胁。此外,传感器节点通常由电池供电,因此不能超载高计算算法和协议。在这种情况下,我们开发并实现了一个端到端的安全PMS,强调使用消耗最小能量的轻量级加密协议保护传感器到网关的无线链路。此外,我们使用MQ遥测传输(MQTT)作为传输协议,而不是超文本传输协议(HTTP),因为它的简单性和轻量级特性。因此,加密的传感器数据被传输并存储在服务器中,真实用户从服务器访问数据并对其解密。
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引用次数: 6
Arduino based temperature and humidity control for condensation on wettability engineered surfaces 基于Arduino的温度和湿度控制,用于润湿性工程表面的冷凝
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405062
Rohit Gupta, Chayan Das, Ankit Roy, R. Ganguly, A. Datta
Condensation is a ubiquitous phenomenon which depends on several factors, ranging from the degree of subcooling to the relative humidity of the condensing environment. Characterizing condensation in experimental setups, therefore, requires a proper control strategy of operating parameters. Although industrial vapor chambers are available for carrying out condensation experiments under precisely controlled environments, these setups are prohibitively expensive. Here we have developed a low-cost, prototype vapor chamber that is equipped with advanced control systems. Environmental control aspects of a Styrofoam- made condensation chamber are developed in-house for testing condensation on wettability engineered surfaces. Peltier-heat sink arrangement is used to cool the condenser surface under study and the desired relative humidity is maintained within the chamber by means of spraying deionized water with a nebuliser. In order to automate the process, an Arduino Duemilanove board is amalgamated with the setup. Temperature is controlled by an ON/OFF trigger-driven mechanical relay connected to the Arduino environment, which in turn generates an opportunely amplified signal to control the supply voltage of the Peltier element. A K-type thermocouple is interfaced to the Arduino board with the help of MAX31855K thermocouple amplifier for measuring the plate temperature. For humidity and chamber-temperature monitoring, an SHT35D sensor is used. The relative humidity of the chamber is maintained by a mechanical relay-driven spray arrangement. The time-domain plots of humidity and plate temperature response indicates that the temperature fluctuations are within 0.25°C and RH fluctuations are within 0.5% about the set-point. Transient response of the temperature and RH data are monitored by the Serial Monitor of Arduino software, which indicates that the set values of temperature and RH are obtained approximately within 0 to 1000 seconds.
冷凝是一种普遍存在的现象,它取决于几个因素,从过冷程度到冷凝环境的相对湿度。因此,表征实验装置中的冷凝需要一个适当的操作参数控制策略。虽然工业蒸汽室可用于在精确控制的环境下进行冷凝实验,但这些装置过于昂贵。在这里,我们开发了一个低成本的原型蒸汽室,配备了先进的控制系统。环境控制方面的泡沫聚苯乙烯制成的冷凝室是开发内部测试凝结在润湿性工程表面。采用珀尔梯-热沉装置冷却所研究的冷凝器表面,并通过喷雾器喷洒去离子水来保持室内所需的相对湿度。为了使该过程自动化,Arduino Duemilanove板与设置合并。温度由连接到Arduino环境的ON/OFF触发器驱动的机械继电器控制,该继电器反过来产生适当放大的信号来控制Peltier元件的供电电压。利用MAX31855K型热电偶放大器将k型热电偶连接到Arduino板上,测量板温。湿度和室内温度监测采用SHT35D传感器。腔室的相对湿度由机械继电器驱动的喷雾装置保持。湿度和板温响应的时域图表明,在设定值附近,温度波动在0.25℃以内,RH波动在0.5%以内。通过Arduino软件的Serial Monitor监测温度和RH数据的瞬态响应,表明温度和RH的设定值大约在0到1000秒内得到。
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引用次数: 14
A smart street-light intensity optimizer 智能路灯强度优化器
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405098
B. Roy, Aditya Acharya, Tanmoy Roy, S. Kuila, J. Datta
The recent research work emphasizes on the conservation of energy as well as on the reduction of environmental pollution. This paper introduces an intelligent method for optimizing the street-light-intensity so as to reduce the CO2 emission which, in turn, reduces the pollution of the environment. The working principle is based on the requirement of luminous energy at a particular moment of time. An automatic system is designed using ARDUINO which will switch ON or OFF the street lights at given time and also depending on the intensity of the ambient light. This system also detects the movement of vehicles and interrupts the system to increase the intensity of light on the road.
最近的研究工作把重点放在节约能源和减少环境污染上。本文介绍了一种智能优化路灯强度的方法,以减少二氧化碳的排放,从而减少对环境的污染。其工作原理是根据某一特定时刻对光能的要求。使用ARDUINO设计了一个自动系统,该系统将根据环境光的强度在给定时间打开或关闭路灯。该系统还可以检测车辆的移动,并中断系统以增加道路上的光线强度。
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引用次数: 12
Optimal reactive power dispatch using JAYA algorithm 基于JAYA算法的无功优化调度
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405071
T. Das, R. Roy
Optimal reactive Power Dispatch (ORPD) is a very useful mechanism for achieving an economic and secure operation of the power system. The problem is formulated as a single objective, complex non-linear, optimization problem containing different control variables to determine the optimal solution while satisfying various constraints simultaneously. A newly proposed algorithm named JAYA algorithm has been applied to the ORPD problem for minimizing the active power loss in the transmission lines and has been tested on IEEE 14 bus, IEEE 30 bus and IEEE 39 New England bus systems. The results obtained from the simulation when compared with that of the other existing optimization techniques proved the effectiveness of JAYA algorithm in finding better solutions to the ORPD problem.
最优无功调度(ORPD)是实现电力系统经济安全运行的一种非常有用的机制。该问题被表述为包含不同控制变量的单目标复杂非线性优化问题,以确定同时满足各种约束条件的最优解。提出了一种新的算法JAYA算法,并在IEEE 14总线、IEEE 30总线和IEEE 39新英格兰总线系统上进行了测试,实现了输电线路有功损耗最小的ORPD问题。仿真结果与其他现有优化技术的结果进行了比较,证明了JAYA算法在寻找ORPD问题更好解方面的有效性。
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引用次数: 12
Controlling of mobile car robots using IR sensors and a tripple axis magnetometer 利用红外传感器和三轴磁强计控制移动汽车机器人
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405085
Debasis Agasti, Arpan Kumar Lahiri, Rikta Majumdar
This paper presents the particulars and details of controlling a mobile car robot in a precise angle set clockwise with respect to the magnetic north of earth. With the employment of a magnetometer and infrared (IR) technology the task of making a mobile vehicle move in a particular angle, with respect to the magnetic north of earth, can be achieved. Reading one of the angular axis movement data, to be particular the YAW axis data, from a triple axis magnetometer, mounted on a portable controller, compass readings can be read on a liquid crystal display (LCD) screen and hence the controller can be pointed towards a desired direction and angle and accordingly the mobile vehicle can be moved in the set direction. For the purpose of making the mobile vehicle move in the set direction the compass angle of the direction is sent to the mobile vehicle through an infrared light emitting diode (LED) using an infrared protocol, to be more precise the infrared NEC protocol was used. The vehicle then receives the information sent by the controller using an IR receiver then moves in the compass angle as set using the portable controller.
本文介绍了移动汽车机器人相对于地球磁北极以顺时针方向设定的精确角度进行控制的细节。利用磁力计和红外(IR)技术,可以实现使移动车辆相对于地球磁北以特定角度移动的任务。从安装在便携式控制器上的三轴磁力计读取其中一个角轴运动数据,特别是偏航轴数据,罗盘读数可以在液晶显示器(LCD)屏幕上读取,因此控制器可以指向所需的方向和角度,因此移动车辆可以在设定的方向上移动。为了使移动车辆在设定的方向上移动,方向的罗经角通过红外发光二极管(LED)发送给移动车辆,使用红外协议,更准确地说,使用红外NEC协议。然后,车辆使用红外接收器接收控制器发送的信息,然后使用便携式控制器按照设定的罗经角度移动。
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引用次数: 0
A new improved algorithm for optimal sizing of battery-supercapacitor based hybrid energy storage systems 基于电池-超级电容器的混合储能系统优化尺寸的改进算法
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405059
S. Mandal, K. Mandal, M. De, G. Das
One of the major challenges in harvesting energy from renewable energy sources is the intermittent nature of available energy sources like solar, wind etc. Thus, it is has become essential to deploy suitable energy storage devices to compensate for the intermittent and random output power generation from various resources. A hybrid energy storage systems (HESS) consisting of battery and supercapacitor is suitable to overcome the difficulties in battery storage system which is normally used. Differential evolution (DE) is one of the powerful evolutionary optimization and has been successfully applied to solve various optimization problems. But one of major difficulties in DE is the selection of control parameters. A wrong parameter selection may lead to premature convergence and even stagnation. In the this work, a new improved algorithm using differential evolution and chaos theory is proposed for optimal sizing of hybrid energy storage system consisting of battery and super capacitor with an aim to avoid premature convergence. A hybrid system consisting of solar and wind is considered for the present work. A suitable objective function is developed which is optimized under several equality and inequality constraints. Simulation results are presented. A comparison of the results with other heuristic techniques is also presented and it shows that proposed techniques can produce good quality solutions.
从可再生能源中获取能源的主要挑战之一是现有能源(如太阳能、风能等)的间歇性。因此,部署合适的储能设备来补偿各种资源的间歇性和随机输出发电变得至关重要。一种由电池和超级电容器组成的混合储能系统(HESS)适合克服常规电池储能系统的困难。差分进化是一种功能强大的进化优化方法,已成功地应用于求解各种优化问题。但是,控制参数的选择是遗传算法的主要难点之一。错误的参数选择可能导致过早收敛甚至停滞。本文提出了一种基于差分进化和混沌理论的电池与超级电容器混合储能系统尺寸优化算法,以避免系统过早收敛。本文考虑了一种由太阳能和风能组成的混合系统。提出了一个合适的目标函数,并在若干等式和不等式约束下进行了优化。给出了仿真结果。将结果与其他启发式技术进行了比较,结果表明所提出的技术可以产生高质量的解。
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引用次数: 2
A semi circular shaped UWB body area network antenna with C-band and WLAN band rejection 一种具有c波段和WLAN波段抑制的半圆形UWB体域网络天线
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405058
Tannistha Mitra Das, G. Sen, S. Islam, Santanu Das
An ultra-wide band (UWB) antenna with C-band and WLAN band rejection is proposed in this paper. The antenna is designed with a semicircular patch which is fed by a 50 ohm microstrip line. This antenna exhibits an ultra-wide band with 10dB return loss bandwidth from 2GHz to 10.3GHz. An inverted U-slot is incorporated to introduce a band notch from 5.1 GHz to 5.8GHz (WLAN) and two split ring resonators are placed at both sides of the feed line to add another band notch from 3.7 GHz to 4.2 GHz (C band for satellite downlink communication), which avoid interferences between these wireless communication bands from the UWB. The antenna is simulated and performances are investigated in terms of return loss and radiation patterns. The antenna performances are measured both in free space and on the body. The measured results are well agreed with the simulated results.
提出了一种具有c波段和WLAN波段抑制的超宽带(UWB)天线。天线设计为半圆形贴片,由50欧姆微带线馈电。该天线在2GHz至10.3GHz范围内具有10dB的超宽带回波损耗带宽。采用倒u型槽引入5.1 GHz至5.8GHz (WLAN)频段陷波,在馈线两侧放置两个分环谐振器,增加3.7 GHz至4.2 GHz(卫星下行通信C频段)频段陷波,避免了UWB对这些无线通信频段的干扰。对天线进行了仿真,并从回波损耗和辐射方向图两方面对其性能进行了研究。在自由空间和体上测量了天线的性能。实测结果与模拟结果吻合较好。
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引用次数: 2
A reliable energy management and generation scheduling model in microgrids using modified cuckoo search algorithm 基于改进布谷鸟搜索算法的可靠微电网能源管理和发电调度模型
Pub Date : 2018-03-08 DOI: 10.1109/EDCT.2018.8405054
M. De, G. Das, S. Mandal, K. Mandal
Clean and green energy production has become a major concern among researchers in recent years. In this context, microgrids can play a very important role and provide sustainable technological solution for this purpose. A microgrid is a small scale power network comprising of several distributed generation units, utilizing mostly renewable energy sources, such as solar PV and wind turbines, also incorporates battery storage, fuel cell and micro turbines. The main focus of this research work aims to develop a microgrid generation scheduling model using intelligent meta-heuristic algorithm. Here a modified cuckoo search algorithm is developed and utilized for energy management in microgrids. Case studies are conducted and results are presented for minimum operating costs without demand response participation and with demand response participation respectively. It represents the superiority of proposed demand side management scheduling model approach for effective energy management in microgrids.
近年来,清洁和绿色能源生产已成为研究人员关注的主要问题。在这种情况下,微电网可以发挥非常重要的作用,并为此提供可持续的技术解决方案。微电网是由几个分布式发电单元组成的小型电网,主要利用可再生能源,如太阳能光伏和风力涡轮机,还包括电池存储、燃料电池和微型涡轮机。本研究的主要重点是利用智能元启发式算法建立微电网发电调度模型。本文提出了一种改进的布谷鸟搜索算法,并将其应用于微电网的能量管理。案例研究分别针对无需求响应参与和有需求响应参与的最低运营成本进行,并给出了结果。说明了所提出的需求侧调度模型方法在微电网有效能源管理中的优越性。
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引用次数: 8
期刊
2018 Emerging Trends in Electronic Devices and Computational Techniques (EDCT)
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