| Index
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Search Term
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Search Engine
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Date (Y-M-D)
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Title
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Abstract
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Notes
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| 1 |
photovoltaic monitoring systems |
Google Scholar |
2005-11-15 |
Development of a monitoring system for a PV solar plant |
| Abstract
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| The aim of this paper is to introduce a system developed for monitoring PV solar plants using a novel procedure based on virtual instrumentation. The measurements and processing of the data are made using high precision I/O modular field point (FP) devices as hardware, a data acquisition card as software and the package of graphic programming, LabVIEW. The system is able to store and display both the collected data of the environmental variables and the PV plant electrical output parameters, including the plant I–V curve. A relevant aspect of this work is the development of a unit that allows automatic measuring of the solar plant I–V curve using a car battery as power supply. The system has been in operation during the last two years and all its units have functioned well.
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| 2 |
photovoltaic monitoring systems |
Google Scholar |
1997-05-19 |
Data Acquisition System for Photovoltaic Systems Performance Monitoring |
| Abstract
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| In order to analyze the performance of photovoltaic systems, we develop a real time expert system based on central microcomputer used as microserver and easily consultable with different automatic stations. So, we present in this communication the principles and specificities of the measurement systems and specially of the automatic data measuring device and its sensors and also some aspects of the database and expert system developed for this application.
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| 3 |
photovoltaic monitoring systems |
Google Scholar |
2011-06-19 |
Wireless Zigbee system for perormance monitoring of photovoltaic panels |
| Abstract
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| In this paper, a solar photovoltaic (PV) performance monitoring system is introduced by utilizing a wireless Zigbee microcontroller. The proposed system can be used to monitor the performance of an array of PV panels to detect non-ideal operating conditions. Various studies have shown that significant reductions in power output and degradation of the performance of Maximum Power Point Trackers (MPPT) are possible under non-ideal conditions. Hence, monitoring and detection of non-ideal conditions is a critical issue in PV modules. In this paper we present the development of a low-cost small form factor electronic hardware consisting of a wireless Zigbee-enabled microcontroller. The system consists of a back end embedded program and a front end graphical user interface (GUI) that can provide remote monitoring of voltage, current, and power for an array of PV modules. The results of implementation on a proof-of-concept testbed consisting of two embedded controllers installed on two PV modules are presented. The experimental results indicate that the proposed system can provide a low-cost and reliable performance monitoring system for small and large scale PV power plants.
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| 4 |
photovoltaic monitoring systems |
Google Scholar |
2003-01-00 |
Development of an integrated data-acquisition system for renewable energy sources systems monitoring |
| Abstract
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| Data-acquisition systems are widely used in renewable energy source (RES) applications in order to collect data regarding the installed system performance, for evaluation purposes. In this paper, the development of a computer-based system for RES systems monitoring is described. The proposed system consists of a set of sensors for measuring both meteorological (e.g. temperature, humidity etc.) and electrical parameters (photovoltaics voltage and current etc.). The collected data are first conditioned using precision electronic circuits and then interfaced to a PC using a data-acquisition card. The LABVIEW program is used to further process, display and store the collected data in the PC disk. The proposed architecture permits the rapid system development and has the advantage of flexibility in the case of changes, while it can be easily extended for controlling the RES system operation.
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| 5 |
photovoltaic monitoring systems |
Google Scholar |
2012-05-22 |
Online Monitoring System for Stand-Alone Photovoltaic Applications—Analysis of System Performance From Monitored Data |
| Abstract
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| The Guidelines for the Assessment of Photovoltaic Plants provided by the Joint Research Centre (JRC) and the International Standard IEC 61724 recommend procedures for the analysis of monitored data to asses the overall performance of photovoltaic (PV) systems. However, the latter do not provide a well adapted method for the analysis of stand-alone photovoltaic systems (SAPV) with charge regulators without maximum power point tracker (MPPT). In this way, the IDEA Research Group has developed a new method that improves the analysis performance of these kinds of systems. Moreover, it has been validated an expression that compromises simplicity and accuracy when estimating the array potential in this kind of systems. SAPV system monitoring and performance analysis from monitored data are of great interest to engineers both for detecting a system malfunction and for optimizing the design of future SAPV system. In this way, this paper introduces an online monitoring system in real time for SAPV applications where the monitored data are processed in order to provide an analysis of system performance. The latter, together with the monitored data, are displayed on a graphical user interface using a virtual instrument (VI) developed in LABVIEW ®. Furthermore, the collected and monitored data can be shown in a website where an external user can see the daily evolution of all monitored and derived parameters. At present, three different SAPV systems, installed in the Polytechnic School of University of Jaén, are being monitorized and the collected data are being published online in real time. Moreover, a performance analysis of these stand-alone photovoltaic systems considering both IEC 61724 and the IDEA Method is also offered. These three systems use the charge regulators more widespread in the market. Systems #1 and #2 use pulse width modulation (PWM) charge regulators, (a series and a shunt regulator, respectively), meanwhile System #3 has a charge regulator with MPPT. This website provides a tool that can be used not only for educational purposes in order to illustrate the operation of this kind of systems but it can also show the scientific and engineering community the main features of the system performance analysis methods mentioned above. Furthermore, it allows an external user to download the monitored and analysis data to make its own offline analysis. These files comply with the format proposed in the standard IEC 61724. The SAPV system monitoring website is now available for public viewing on the University of Jaén. (http://voltio.ujaen.es/sfa/index.html).
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| 6 |
inductive current sensor |
Google Scholar |
1987-11-24 |
Inductive sensor for current measurement |
| Abstract
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| An inductive current measuring sensor is provided comprising several coils connected electrically in series and disposed in a polygonal contour, so as to surround the conductor on which it is desired to measure the current. Each coil comprises windings disposed on an insulating bobbin and connection elements. The bobbins are disposed on the face of a printed circuit having a central recess through which the conductor may pass. The printed circuit carries conducting tracks interconnecting the fixing points of the connection elements together and to external connection members.
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| 7 |
open source power monitor |
IEEE Xplore |
2013-11-25 |
Inspiring energy conservation through open source power monitoring and in-home display |
| Abstract
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| Many homeowners and occupants are interested in energy conservation for economical and/or ecological reasons. A number of commercial energy conservation solutions exist on the market today. However, these products contain closed systems and do not provide easy access to much of the raw data needed for more sophisticated analysis. An open source solution would be a great benefit for homeowners and occupants, allowing access to (and custom analysis of) raw power readings. We present a complete open source solution that monitors power, stores raw power readings, and makes provision for an in-home display, that informs stakeholders about energy consumption through a real-time ambient feedback effectively becoming an eco-feedback device.
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| 8 |
open source power monitor |
IEEE Xplore |
2011-05-11 |
zEnergy: An open source project for power quality assessment and monitoring |
| Abstract
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| In this paper, a new open source project focused on power quality assessment and monitoring for low voltage power systems is presented. Power quality (PQ) is a crucial matter for proper and reliable operation of industrial or home electrical appliances. In order to improve PQ techniques, efforts are made to develop smart sensors that can report near real-time data. Proprietary software and hardware on dedicated computers or servers processes these data and shows relevant information through tables or graphics. In this situation, interoperability, compatibility and scalability are not possible because of the lack of open protocols. In our work, we introduce zEnergy, an open source platform for computing, storing and managing all of the information generated from smart sensors. We apply the most up-to-date algorithms developed for power quality, event detection, and harmonic analysis or power metering. zEnergy makes use of cutting-edge web technologies such as HTML5, CSS3 and Javascript to provide user-friendly interaction and powerful capabilities for the analysis, measurement and monitoring of power systems. All software used in our work is open source, running on Linux.
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| 9 |
open source power monitor |
IEEE Xplore |
2010-25-7 |
Building a low-cost network for power-quality monitoring with open-source-hardware nodes |
| Abstract
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| This paper presents the guidelines for building a low-cost network suitable for power-quality monitoring. The implementation of a standalone basic node capable of extracting various power-quality metrics (Total Harmonic Distortion-THD, Crest Factor, etc) in an open-source hardware embedded system board is described. By utilizing simple signal processing techniques directly in hardware, this node maintains high portability due to its small dimensions. Furthermore, exploitation of its built-in TCP/IP capabilities allows the deployment of a wide area network by the interconnection of basic nodes, in order to provide power-quality data collection for further processing and evaluation. Due to the distributed processing load, the proposed network can achieve high efficiency and reliability.
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| 10 |
open source power monitor |
IEEE Xplore |
2016-09-06 |
Open Power Quality: An open source framework for power quality collection, analysis, visualization, and privacy |
| Abstract
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| As power grids transition from a centralized distribution model to a distributed model, maintaining grid stability requires real-time power quality (PQ) monitoring and visualization. As part of the Open Power Quality (OPQ) project, we designed and deployed a set of open source power quality monitors and an open source cloud-based aggregation and visualization system built with the utility customer in mind. Our aim is to leverage a flexible privacy model combined with inexpensive and easy to use PQ meters in order to deploy a high density power quality monitoring network across the Hawaiian islands. In this paper we describe OPHub, a privacy focused open source PQ visualization along with results of a small scale deployment of our prototype PQ meter across the island of Oahu. Our results demonstrate that OPQ can provide useful power quality data at an order of magnitude less cost than prior approaches.
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| 11 |
solar power monitor |
IEEE Xplore |
2016-22-11 |
Remote monitoring system for solar power panels using intelligent sensors network |
| Abstract
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| Improving pre-installed monitoring system for a set of Photovoltaic (PV) panels, using wireless sensor network (WNS) with embedded fuzzy controller, is our contribution in this work in order to control and detect faults within solar panels that affect considerably the energy produced by the solar panels. The new solution is to integrate the detection and classification of faults within the sensors node. The proposed classifier based on Fuzzy logic controller is integrated within the Node. The WSN nodes are implemented with appropriate sensors for more often occurred faults on the solar power panels. A simulation has been done on nodes distribution and a study for the design of a node with appropriate sensors taking into account the priorities of the processing faults. The primary results of simulation are very encouraging in point of fast detection of faults with minimum computation and minimum data transmission.
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| 12 |
solar power monitor |
IEEE Xplore |
2016-02-29 |
A smart IoT system for monitoring solar PV power conditioning unit |
| Abstract
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| In this paper, we have described an effective implementation of an intelligent remote monitoring system for solar Photovoltaic (PV) Power Conditioning Unit (PCU) which is used in a greenhouse environment. The proposed system design can be installed in solar PV PCU in order to solve management problems, maintenance and shortens the mean time to repair. We have designed a smart remote monitoring system based on internet of thing for monitoring Solar PV PCU. This system had incorporated remote monitoring for solar PV PCU through internet using host, network GPRS (Global Positioning Radio Service), embedded system gateway and other components. The result of our demonstration shows that the system can monitor store and manipulate data from solar PV PCU. Thus, the remote monitoring functions are realized in real-time.
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| 13 |
solar power monitor |
IEEE Xplore |
2016-08-10 |
The platform of monitoring and analysis for solar power data |
| Abstract
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| Facing with the rapid development of solar energy industry in China and the problems existed during the development process, this paper carried out a series of technical research on remote communication of solar power, integrated modeling of panoramic data, normalized correlation analysis, multi-level display and share of information. Based on the research, we developed an integrated data platform for solar power which consists of key performance parameters of solar power generation equipment, regional solar energy resources and economic benefits of solar power station. Finally, we established a national dissemination system of solar power generation information based on B/S architecture. The integrated data platform, introduced in this paper, have a variety functions of statistics, query, analysis and assessment. With diverse functions in the system, it can fully meet the demands of government departments, power generation companies, equipment manufacturers and research institutions, with a strong capability of public service.
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| 14 |
solar power monitor |
IEEE Xplore |
2016-06-07 |
Performance monitoring of a solar photovoltaic power plant using an advanced real-time system |
| Abstract
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| This paper presents a novel system which has been developed to supervise in real time the operation of a Grid-Connected Utility-Scale PV Power Plant in order to ensure a reliable and uninterruptible power supply. The system is composed of a complex acquisition architecture which measures the required information with a high temporal resolution and using a high-precision protocol for synchronizing all the devices, something strictly necessary for accurately establishing a relationship among all events taking place in the plant. Moreover, an advanced system for monitoring and supervising all the distributed devices, as well as for the real-time treatment of all the registered information is presented. This system does not only enable a better control over the performance of all the PV plant's components by detecting any failures or deviations in production, but it also monitors the power quality of the injected signal and its influence on the distribution grid.
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| 15 |
solar power monitor |
IEEE Xplore |
2015-11-06 |
Real time monitoring of solar power plant and automatic load control |
| Abstract
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| Solar energy constitutes the most abundant renewable energy resource available and in most regions of the world its theoretical potential is far in excess of the current total primary energy supply in those regions. The work of remote data monitoring is highly useful, thereby decreasing the manual work and the errors in reading. In the proposed system we use X-Bee module as trans-receiving system, the distance of transmission is about 800 mts. For a relatively larger distance transmission, a more powerful trans-receiving system c an be introduced so as to increase the reach of the system. The objective of this work is to develop a power management system for optimum utilization of generated power from Solar PV power plants. This is to alleviate the existing situation wherein the net solar power utilization is effectively only about 50%. Some of the features of the proposed scheme are automatic load switching, advanced remote metering & control, and priority based switching.
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| 16 |
solar power monitor |
IEEE Xplore |
2015-06-10 |
Solar power remote monitoring and controlling using Arduino, LabVIEW and web browser |
| Abstract
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| This paper proposes an effective and efficient graphical user interface (GUI) to real time control and monitor the DC power generated by solar panels and DC power consumed by load locally and remotely. There are two GUIs provided server and client. Server computer needs to be installed near to solar panels for monitoring and controlling locally while client GUI can be accessed by using a web browser from any part of world, authorize person can monitor and control all operations. Server and client GUI are designed by using LabVIEW and LabVIEW UI builder while hardware is developed with Arduino Uno, current and voltage sensors, relays and charge controller. Monitoring interface uses real time measurement results to prepare the power, current and voltage graphs, it is also possible to record and reach database file to analyze history of renewable energy source (RES) system. This will also help to increase performance of the existing solar system also other alternative resources of energy. In this system monitoring interface contains power production and consumption, voltage and current graphs and meters on a GUI. Controlling feature includes turn on/shutdown of solar system, increase or decrease energy consumption, generation and switching to other available system.
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| 17 |
solar power monitor |
IEEE Xplore |
2013-05-21 |
A monitoring system for obtaining high-quality one-second spaced PV maximum power and solar radiation measurements |
| Abstract
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| A major concern with future high penetration PV levels is the impact on electric utility power distribution systems due to abrupt changes in power generation caused by cloud shadows and the resulting voltage flicker. The time period of interest in this phenomenon is seconds. This paper describes the process used to obtain GPS time-stamped 1-second spaced maximum panel power output and solar radiation estimates from a data logger controlled system. The key is to operate the system quickly during each repetitive 5-second period, taking a string of measurements and sweeping the test panels current-voltage curve, and then using cubic splines to compute high-quality estimates at integer 1-second spaced intervals.
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| 18 |
solar power monitor |
IEEE Xplore |
2010-12-18 |
Performance monitoring of solar stand alone power systems |
| Abstract
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| Performance monitoring of solar photovoltaic (PV) power systems is very essential for initial system evaluation, and continuous output optimization. Currently, PV system monitoring is complicated and expensive and limited to large scale grid connected solar PV plants. This paper surveys PV system monitoring methods and proposes a simple and economic method that can be used by stand alone PV power systems. The method uses reference cells to collect real time data and an electronic subsystem for processing. Experimental results show that reference cells power output correlate well with monitored module output and can be used for monitoring and optimization.
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| 19 |
solar power monitor |
IEEE Xplore |
2014-11-12 |
Development of an Arduino-based automated household utility power monitoring system |
| Abstract
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| This work develops an automated household utility power monitoring system and data logging in real-time. It utilizes the Arduino Uno Rev3 Microcontroller board intended for use in conjunction with the ATmega328 chip. For monitoring these parameters, it will be connected to a current transformer through the current and voltage sensor circuit. The system will convert these raw data to digital input for data acquisition and will log these to an SD card by the SD/MMC shield module for data retention in case of power failures. The system is also equipped with DS1307 serial RTC (Real-Time Clock) chip which is responsible for providing real time clock and date needed in the data logging operation. Results and findings indicated that the device has indeed successfully performed its desired function as an automated household utility power monitoring system. As such it will display in real-time, the consumed average power in watt along with its price. This will serve as an assessment parameter in order to measure the acceptability, performance relative to functionality, and marketability of the accomplished technology.
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| 20 |
energy monitor software |
IEEE Xplore |
2012-05-14 |
Energino: A hardware and software solution for energy consumption monitoring |
| Abstract
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| Accurate measurement of energy consumption of practical wireless deployments is vital to the research community to develop pragmatic simulators and analytical models for the synthesis of new energy-aware and energy-efficient protocols and algorithms for wireless networks. However, there is considerable dearth in the availability of affordable and scalable energy consumption monitoring tools for the research community. In this paper, we introduce Energino, a scalable and affordable solution for energy consumption monitoring in wireless networks. The Energino power meter is a standalone plug-load meter based on the Arduino platform providing high resolution and sampling rate capabilities. We evaluate the capabilities and distinctive features of the Energino power meter in a real WLAN network. Results show that our solution is capable of isolating high resolution/frequency dynamics that can not be analyzed using commercially available tools. We also release both the hardware schematics and the software with a permissive license in order to encourage the research community to use and extend it.
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| 21 |
energy monitor software |
IEEE Xplore |
2012-02-21 |
Software tools for monitoring and analysis of energy efficiency |
| Abstract
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| This article discusses usage of software tools for monitoring and analysis of energy efficiency.
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| 22 |
electrical current sensor |
IEEE Xplore |
2011-02-20 |
A ±1.5% nonlinearity 0.1-to-100A shunt current sensor based on a 6kV isolated micro-transformer for electrical vehicles and home automation |
| Abstract
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| A wide range of current-sensing techniques has been developed to satisfy various electrical and electronics applications requirements. In high-voltage applications, the main issue is the electrical isolation with accurate measurement at low signal levels. Isolated shunt technology is an attractive and versatile solution for current sensing. Electrical isolated products usually need a power supply at both low and high voltage sides. An original topology that needs only one power supply at the secondary (low voltage) side is reported. In this paper, we introduce an implementation of an integrated shunt current-measurement microsystem based on a 6 kV isolated micro-transformer. This work finds its applications in many domains such as hybrid or electric vehicle battery monitoring or motor control, system building automation or smart grids, where small size and low cost are required.
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| 23 |
Electromagnetics Book |
NA |
2004-00-00 |
Electromagnetics for Engineers |
| Abstract
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| A highly focused, applications-oriented aproach to electromagnetics
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| 24 |
Power Systems Book |
NA |
2010-00-00 |
Power System Analysis |
| Abstract
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| Power System Analysis Third Edition is designed for senior undergraduate or graduate electrical engineering students studying power system analysis and design. The book gives readers a thorough understanding of the fundamental concepts of power system analysis and their applications to real-world problems. MATLAB and SIMULINK, ideal for power system analysis, are integrated into the text, which enables students to confidently apply the analysis to the solution of large power systems with ease. In the third edition, Chapter 1 is revised comprehensively to include energy resources and their environmental impacts. It covers various fossil-fuel power plants as well as all modern power plants using renewable energy sources. Also, this chapter includes discussion of the emergence of the smart grid and the role of power electronics in modern power systems.
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| 25 |
Signal Conditioning Book |
NA |
2010-00-00 |
Microelectronics Circuit Analysis and Design |
| Abstract
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| Microelectronics: Circuit Analysis and Design is intended as a core text in electronics for undergraduate electrical and computer engineering students. The fourth edition continues to provide a foundation for analyzing and designing both analog and digital electronic circuits. The goal has always been to make this book very readable and student friendly.
An accessible approach to learning through clear writing and practical pedagogy has become the hallmark of Microelectronics: Circuit Analysis and Design by Donald Neamen. Now in its fourth edition, the text builds upon its strong pedagogy and tools for student assessment with key updates as well as revisions that allow for flexible coverage of op-amps.
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| 26 |
TWI Reference |
NA |
2014-04-04 |
I2C-bus specification and user manual |
| Abstract
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| Philips Semiconductors (now NXP Semiconductors) developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. The Ultra Fast-mode is a uni-directional mode with data transfers of up to 5 Mbit/s
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| 27 |
TWI Reference |
NA |
2016-00-00 |
AVR310: Using the USI module as a TWI Master |
| Abstract
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| The Two-wire serial Interface (TWI) is compatible with Philips' I2C protocol.
The bus was developed to allow simple, robust, and cost effective
communication between integrated circuits in electronics. The strengths of
the TWI bus includes the capability of addressing up to 128 devices on the
same bus, arbitration, and the possibility to have multiple masters on the
bus.
The Universal Serial Interface (USI) module on devices like Atmel®
ATmega169, ATtiny26, and ATtiny2313 has a dedicated Two-wire mode. The
USI provides the basic hardware resources needed for synchronous serial
communication. Combined with a minimum of control software, the USI
allows higher transfer rates and uses less code space than solutions based
on software only.
This application note describes a TWI master implementation, in form of a
full-featured driver and an example of usage for this driver. The driver
handles transmission according to both Standard mode (<100kbps) and Fast
mode (<400kbps). The example can be found from the Atmel START webpage,
http://start.atmel.com/.
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| 28 |
I2C sensor node |
IEEE Xplore |
14-09-14 |
A reliable hardware platform for wireless sensor networks |
| Abstract
|
| A wireless sensor network (WSN) is a spatially distributed autonomous sensors to monitor physical parameters. The major study in this paper is to design and implement a highly reliable hardware platform at ISM radio bands (i.e. 2.4 GHz) to be employed in a WSN system. ISM radio bands are reserved internationally for industrial, scientific and medical purposes. ZigBee-IEEE 802.15.4 is one of the most emerging technology for WSN. ZigBee Vendors supplying Coordinator, Router and End node separately. In this paper we present a device, can be configurable as Coordinator or router or End node. This device consist MSP430F5438 as microcontroller and CC2520 as RF Controller. Microcontroller part consists of JTAG, USB, Analog Inputs, Digital IOs (i.e. UART, SPI & I2C) and for better performance added Inverted F-Antenna, Matching Circuits and Balun Circuits to CC2520. Schematic translate to Printed Circuit Board by EDA tool Cadence-OrCAD. From our device, transmitted distance up to 25 meters without data loss.
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| 29 |
I2C sensor node |
IEEE Xplore |
2008-05-07 |
A runtime energy monitoring system for wireless sensor networks |
| Abstract
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| One of the most important issues in the development of wireless sensor networks is energy efficiency. Therefore, it is important to have accurate measurements of the energy consumption of each node.We propose a simple and accurate measurement approach capable to handle this issue. An integrated prototype of our measurement setup was built for the mica2 platform. It can be directly plugged onto the mica2 mote and allows the mote to monitor its energy consumption during runtime. Due to the low costs of our approach it is feasible to employ it in a whole wireless sensor network. The setup shows good accuracy and low power consumption. The mote has access to the measurement setup over the I2C-Bus. Our approach can be easily ported to other wireless sensor network platforms.
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| 30 |
current sensor selection |
Digi-Key Article Library |
2012-09-13 |
The Basics of Current Sensors |
| Abstract
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| While both types of sensors can be economical depending on the application requirements, open-loop sensors provide the best cost advantage in the high current ranges (over 100 A). They are also the smallest size and weight. They maintain constant power consumption, no matter the sensed current. The price advantage of open sensors may only be realized for applications where temperature variation can be restricted.
Closed-loop current sensors, on the other hand, are more suitable for commercial and industrial applications, where they are commonly found. These sensors have the highest accuracy at ambient and high temperature. They are ideal for noisy environments and their output is easily converted to voltage.
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| 31 |
current sensor selection |
Digi-Key Article Library |
2013-12-05 |
Current Sensor Measurement and Challenges |
| Abstract
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Current sensing is an essential function in end uses ranging from safety-critical automotive and industrial applications to handheld devices, where determining power and efficiency are vital. Precision current monitoring allows designers to obtain critical information (such as motor torque, based on motor current) or diagnostic information. When even small changes in current can be detected it can lead to avoiding costly repairs and mechanical problems before they occur. This article has examined several types of current-sensing technologies and looked at some example devices. For more infromaiton on the products discussed here, use the links provided to access product information pages on the Digi-Key website.
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| 33 |
energy data logger |
IEEE Xplore |
2016-01-07 |
Developing an open access monitoring device for off-grid renewables |
| Abstract
|
| Electricity access is a key driver for developing a modern society. The use of locally generated renewable energy can overcome limitations of expensive grid infrastructure. However, there are still barriers to access particularly for the rural poor in the global south. When individuals or communities invest in electricity provision it is important to know how well the system is performing. Commercial monitoring systems have been developed for large scale renewable energy systems. The cost of these can outweigh the cost of a small decentralised renewable energy system. This paper describes the development of a low cost data logger that is going to be used to monitor the system performance of small photovoltaic nano-grids in Kenya and Bangladesh. The device performs within the expected range for the current, voltage, temperature and irradiance sensors. Data from the data logger device is sent via GPRS to a Website where it can be accessed as real time graphical displays and data files.
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| 34 |
energy data logger |
IEEE Xplore |
2015-07-08 |
User-friendly monitoring system for residential PV system based on low-cost power line communication |
| Abstract
|
| A photovoltaic (PV) system has been widely deployed in residential areas to reduce energy cost. However, it is not monitored in detail or managed in a user-friendly manner in many cases. Therefore, a PV monitoring system needs to provide both detailed monitoring of each PV module and a user-friendly way of access to the monitored data. In addition, the PV monitoring system needs to be low-cost to be widely deployed. To achieve these needs, this paper proposes a user-friendly PV monitoring system based on a low-cost power line communication (PLC). For cost reduction, the PLC module is developed without a communication modem. For detailed monitoring, the PLC modules are installed at each PV module; the data logger aggregates the monitored data of each PV module and the PV inverter. For userfriendly access, a smart app is used to show the aggregated data graphically. In the field test, the developed PV monitoring system is installed at a real PV system composed of sixteen 400 W PV module; users can figure out the status of the whole PV system through a smart device. This scheme is expected to reduce energy cost in residential areas by maintaining a PV system performance.
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| 35 |
energy data logger |
IEEE Xplore |
2014-12-20 |
Data logging and energy consumption analysis of two houses in St. John's, Newfoundland |
| Abstract
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| In this paper a design of a low cost data logger to log temperature and power consumption in a house is presented. The designed data logger is capable of logging four AC current and two temperature measurements. It is based on a low cost microcontroller PIC18F4550. Microcontroller is programmed using Mikrobasic. The circuit displays temperature measurements on an LCD display and all measurements are also stored in separate files on a sd card. Power consumption of two houses was logged for one year using a sampling time of 2 minutes. The data stored in a sd card is used for further analysis. This paper also presents design of data logger and a detailed analysis of energy consumption of two houses based on collected data. Data analysis indicates power consumption pattern and its variation over a year. Analysis indicates that the logged data and monthly data collected by the utility company give similar energy consumption.
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