Communication network for remote monitoring of wind turbine based on infrared camera

Recently, numerous monitoring techniques have been proposed to detect the failure of wind turbine (WT). These techniques were developed based on embedded system with several sensors and complex cabling requirements. Therefore, an Infrared (IR)-camera can be considered an effective visual tool with a large coverage area, high accuracy, reliability, and cost effectiveness. This paper proposes communication network architecture for remote monitoring of WT based on non-contact IR-cameras to detect the failures in real-time. Firstly, the feasibility study of various components such as electrical, mechanical and control system of WT which can be monitored through IR-camera was conducted. According to the feasibility study, the WT components are then prioritized into three different categories of high, low, and medium. According to the aforementioned categorization of WT components, three different types of IR-camera with a low, medium, and high resolution are used. The communication network is designed in two parts the internal communication network inside the WT and the external communication network between WT and remote control center. The amount of data traffic is numerically modeled with different parameters such as image resolutions, frame size, frame number, and data rates for the transmission of data. Since, the external communication network is usually shared by other sub-networks for different applications. This can lead the problem of high bandwidth demand and security issues. Therefore, different compression techniques such as MPEG-2 and H.264 are considered to evaluate the network performance. The communication network is modeled and simulated through OPNET. The simulation results show that the end-to-end delay of the IR-camera based monitoring can satisfy the IEEE 1646 standard timing requirements

System design approach to energy-efficient data centers

Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2011.Cataloged from PDF version of thesis.Includes bibliographical references (p. 63-65).Green HPC is the new standard for High Performance Computing (HPC). This has now become the primary interest among HPC researchers because of a renewed emphasis on Total Cost of Ownership (TCO) and the pursuit of higher performance. Quite simply, the cost of operating modern HPC equipment can rapidly outstrip the cost of acquisition. This phenomenon is recent and can be traced to the inadequacies in modern CPU and Datacenter systems design. This thesis analyzes the problem in its entirety and describe best practice fixes to solve the problems of energy-inefficient HPC.by Kurt Keville.S.M.in Engineering and Managemen

Internet of Things From Hype to Reality

The Internet of Things (IoT) has gained significant mindshare, let alone attention, in academia and the industry especially over the past few years. The reasons behind this interest are the potential capabilities that IoT promises to offer. On the personal level, it paints a picture of a future world where all the things in our ambient environment are connected to the Internet and seamlessly communicate with each other to operate intelligently. The ultimate goal is to enable objects around us to efficiently sense our surroundings, inexpensively communicate, and ultimately create a better environment for us: one where everyday objects act based on what we need and like without explicit instructions

Advanced Trends in Wireless Communications

Physical limitations on wireless communication channels impose huge challenges to reliable communication. Bandwidth limitations, propagation loss, noise and interference make the wireless channel a narrow pipe that does not readily accommodate rapid flow of data. Thus, researches aim to design systems that are suitable to operate in such channels, in order to have high performance quality of service. Also, the mobility of the communication systems requires further investigations to reduce the complexity and the power consumption of the receiver. This book aims to provide highlights of the current research in the field of wireless communications. The subjects discussed are very valuable to communication researchers rather than researchers in the wireless related areas. The book chapters cover a wide range of wireless communication topics

Deterministic ethernet in a safety critical environment

This thesis explores the concept of creating safety critical networks with low congestion and latency (known as critical networking) for real time critical communication (safety critical environment). Critical networking refers to the dynamic management of all the application demands in a network within all available network bandwidth, in order to avoid congestion. Critical networking removes traffic congestion and delay to provide quicker response times. A Deterministic Ethernet communication system in a Safety Critical environment addresses the disorderly Ethernet traffic condition inherent in all Ethernet networks. Safety Critical environment means both time critical (delay sensitive) and content critical (error free). Ethernet networks however do not operate in a deterministic fashion, giving rise to congestion. To discover the common traffic patterns that cause congestion a detailed analysis was carried out using neural network techniques. This analysis has investigated the issues associated with delay and congestion and identified their root cause, namely unknown transmission conditions. The congestion delay, and its removal, was explored in a simulated control environment in a small star network using the Air-field communication standard. A Deterministic Ethernet was created and implemented using a Network Traffic Oscillator (NTO). NTO uses Critical Networking principles to transform random burst application transmission impulses into deterministic sinusoid transmissions. It is proved that the NTO has the potential to remove congestion and minimise latency. Based on its potential, it is concluded that the proposed Deterministic Ethernet can be used to improve network security as well as control long haul communication

Автоматична система керування орієнтацією дзеркал сонячної електростанції

Робота публікується згідно наказу ректора від 29.12.2020 р. №580/од "Про розміщення кваліфікаційних робіт здобувачів вищої освіти в репозиторії НАУ".Керівник дипломної роботи: к.т.н., доц., професор кафедри авіаційних комп’ютерно-інтегрованих комплексів, Сергеєв Ігор ЮрійовичThe solar battery is the generator of alternative types of energy turning solar radiation into electricity. Solar energy is inexhaustible and that is very important, - is ecologically safe. In fact, the only essential lack of receiving energy from the Sun is the low efficiency of such installations. For example, now the efficiency of the solar battery on the basis of single-crystal silicon about 15%. What does the efficiency of a solar power plant depend on? It is natural that from many more or less significant factors, but the basic from them is orientation of battery cells concerning a radiation source (Sun). Such fact is absolutely obvious: rigidly fixed solar battery configured to the midday sun develops the maximum quantity of energy at noon when sunshine fall perpendicularly to its surface. And what occurs in other time? The incidence angle of beams on the battery is small, and the amount of the developed energy sharply decreases. And each user wants that its solar power plant developed equally high amount of energy throughout the day. And it can be reached! Illumination of solar batteries should be supported at optimum level. The various systems of tracking — from protozoa analog to analog and digital are developed for maintenance of this level. The system of tracking the sun is a device for orientation of the photovoltaic solar array or for deduction of the solar reflector turned to the Sun.Сонячна батарея є генератором альтернативних видів енергії, що перетворює сонячне випромінювання на електрику. Сонячна енергія невичерпна, і що дуже важливо, - екологічно безпечна. Насправді єдиним суттєвим недоліком отримання енергії від Сонця є низька ефективність таких установок. Наприклад, зараз ефективність сонячної батареї на основі монокристалічного кремнію становить близько 15%. Від чого залежить ефективність сонячної електростанції? Природно, що з багатьох більш-менш значущих факторів, але основним з них є орієнтація елементів батареї щодо джерела випромінювання (Сонця). Цей факт абсолютно очевидний: жорстко закріплена сонячна батарея, налаштована на полуденне сонце, виробляє максимальну кількість енергії опівдні, коли сонце падає перпендикулярно до його поверхні. А що відбувається в інший час? Кут падіння променів на батарею невеликий, і кількість виробленої енергії різко зменшується. І кожен користувач хоче, щоб його сонячна електростанція виробляла однаково велику кількість енергії протягом дня. І до нього можна дійти! Освітлення сонячних батарей повинно підтримуватися на оптимальному рівні. Для підтримки цього рівня розроблені різні системи відстеження - від найпростіших аналогових до аналогових та цифрових. Система відстеження Сонця - це пристрій для орієнтації фотоелектричної сонячної батареї або для відведення сонячного відбивача, поверненого до Сонця

ACUTA Journal of Telecommunications in Higher Education

In This Issue Transforming Your Operations Center into a Green Center Building the Green Campus Pay Attention: Your ICT Electric Just Went Up Green lT: lt\u27s Academic University of Central Missouri Undertakes Radical Energy-Efficiency lmprovements Interview From the President and Executive Director Harvey Buck Buchanan, Florida State University Jeri A. Semer, CA