scholarly journals Smart Monitoring System of DC to DC Converter for Photovoltaic Application

2018 ◽  
Vol 9 (2) ◽  
pp. 722
Author(s):  
Jameel Kadhim Abed
Keyword(s):  
Control System ◽  
Open Source ◽  
Monitoring System ◽  
High Efficiency ◽  
Low Cost ◽  
Smartphone Application ◽  
End User ◽  
Application Program ◽  
Photovoltaic Application ◽  
Efficiency Performance

This paper presents a new smart monitoring system designed based on dc to dc converter for photovoltaic application. This system design according two parts to monitor input-output voltages and currents for dc/dc converter, (a) control system: the control system using Arduino NANO as microcontroller to read the measuring voltage and current values from sensor circuits of voltage and current. The measuring data send by Bluetooth HC-05 to end user (monitor system). Bluetooth as wireless communication between the control system and monitoring system (end users). (b) monitoring system: The monitoring system application program as a new application designed to monitor the received data from control system from safety distance (around 10m). the application program designed by the open source AppyBuilder software. The AppyBuilder is an open source software for easily building Android smartphone application. The advantages of the final circuit can be used to monitor step-up or step-down topologies, low-cost, and high-efficiency performance.

scholarly journals An Open-Source and Low-Cost Monitoring System for Precision Enology

Sensors ◽  
2014 ◽  
Vol 14 (12) ◽  
pp. 23388-23397 ◽  
Author(s):  
Salvatore Filippo Di Gennaro ◽  
Alessandro Matese ◽  
Mirko Mancin ◽  
Jacopo Primicerio ◽  
Alberto Palliotti
Keyword(s):  
Open Source ◽  
Monitoring System ◽  
Low Cost

Design of a Velocity Control System Using an Inlet Metered Pump

2017 ◽  
Author(s):  
Hasan H. Ali ◽  
Roger C. Fales ◽  
Noah D. Manring
Keyword(s):  
Fluid Flow ◽  
Control System ◽  
High Efficiency ◽  
Flow Direction ◽  
Low Cost ◽  
Hydraulic Cylinder ◽  
Fast Response ◽  
Open Loop ◽  
Velocity Control ◽  
Pump System

This work introduces a new way to control hydraulic cylinder velocity using an inlet metering pump system to control the hydraulic flow entering the cylinder. The inlet metering system consists of a fixed displacement pump and an inlet metering valve that adjusts the hydraulic fluid flow entering the pump as required. The energy losses associated with flow metering in the system are reduced because the pressure drop across the inlet metering valve can be arbitrarily small. The fluid is supplied to the inlet metering valve at a fixed pressure using a charge pump. A velocity control system is designed using the inlet metering system as means to control the fluid flow to a hydraulic cylinder. In addition to the inlet metering system, the velocity control system designed in this work includes a four-way directional valve to set the fluid flow direction according to the desired direction of the hydraulic cylinder velocity. Open-loop and closed-loop proportional and proportional derivative (P and PD) controllers are designed. Designs with the goals of stability and performance of the system are studied so that a precise and smooth velocity control system for the hydraulic cylinder is achieved. In addition to potentially high efficiency of this system, there is potential for other benefits including low cost, fast response, and less complicated dynamics compared to other systems. The results presented in this work show that the inlet metering velocity control system can be designed so that the system is stable, there is zero overshoot and no oscillation.

scholarly journals A Low-Cost, Open Source Monitoring System for Collecting High Temporal Resolution Water Use Data on Magnetically Driven Residential Water Meters

Sensors ◽  
2020 ◽  
Vol 20 (13) ◽  
pp. 3655 ◽  
Author(s):  
Camilo J. Bastidas Pacheco ◽  
Jeffery S. Horsburgh ◽  
Robb J. Tracy
Keyword(s):  
Open Source ◽  
Monitoring System ◽  
Water Use ◽  
Temporal Resolution ◽  
Low Cost ◽  
High Temporal Resolution ◽  
Time Interval ◽  
Residential Water Use ◽  
Water Meters ◽  
Residential Water

We present a low-cost (≈$150) monitoring system for collecting high temporal resolution residential water use data without disrupting the operation of commonly available water meters. This system was designed for installation on top of analog, magnetically driven, positive displacement, residential water meters and can collect data at a variable time resolution interval. The system couples an Arduino Pro microcontroller board, a datalogging shield customized for this specific application, and a magnetometer sensor. The system was developed and calibrated at the Utah Water Research Laboratory and was deployed for testing on five single family residences in Logan and Providence, Utah, for a period of over 1 month. Battery life for the device was estimated to be over 5 weeks with continuous data collection at a 4 s time interval. Data collected using this system, under ideal installation conditions, was within 2% of the volume recorded by the register of the meter on which they were installed. Results from field deployments are presented to demonstrate the accuracy, functionality, and applicability of the system. Results indicate that the device is capable of collecting data at a temporal resolution sufficient for identifying individual water use events and analyzing water use at coarser temporal resolutions. This system is of special interest for water end use studies, future projections of residential water use, water infrastructure design, and for advancing our understanding of water use timing and behavior. The system’s hardware design and software are open source, are available for potential reuse, and can be customized for specific research needs.

scholarly journals A study on problem diagnosis and maintenance guideline of small scale PV system

2018 ◽  
Vol 7 (2.12) ◽  
pp. 105
Author(s):  
Hee Chul Kim
Keyword(s):  
Power Generation ◽  
Monitoring System ◽  
High Efficiency ◽  
Low Cost ◽  
Monitoring Device ◽  
Cloud Type ◽  
Pv System ◽  
Solar Module ◽  
Iot Platform ◽  
Smoke Sensor

Background/Objectives: Research and development of low-cost, high-efficiency devices that can be installed without replacing existing power generation equipment is promoted early. It is aimed to prevent the damage of property and human life by detecting the fire of PV system. Therefore, it is possible to easily install the device without replacing the solar module The aim is to minimize the damage to people.Methods/Statistical analysis: In order to prepare for the safety accidents of the photovoltaic power generation facilities due to fire and blast, the monitoring system should have the following functions as essential. Measures and analyzes the voltage and current of power generated in each string in the connection board in real time. An alarm is triggered when an abnormality of a specific string is detected or when an abnormal temperature change is detected in the connection panel internal temperature sensor.If the smoke sensor inside the connection panel detects smoke generation and an abnormality such as a fire is caught, the monitoring system immediately generates an alarm.Findings: It provides services such as checking the status of customer power plants, improving power generation efficiency, and recovering quickly in case of a disaster through a monitoring system that supports stable operation of the PV plant and profit generation. By using the existing connection box function as it is, the company minimized the additional cost, and promoted and promoted a low-cost, high-efficiency system.Improvements/Applications: H/W module using temperature and smoke sensor is interlocked with existing connection semi-control system to develop efficient connection monitoring device. In order to link the sensor value with the monitoring system, messages are added and supplemented. For the application of the fail-safe solution, we developed a monitoring device to prevent the escape of the solar module and developed the H / W module using the vibration and loosening sensor. We will develop the solar monitoring system based on cloud type IoT platform by linking the fault recognition and alarm generation function by adding / supplementing the sensor value to link with the monitoring system.As a power station management for cloud type (ASP) service, adoption of oneM2M standard based IoT platform can expand acceptance by monitoring web and mobile based monitoring as well as real time monitoring and fault monitoring of solar power plant.  

scholarly journals Developing a Secure Low-Cost Radon Monitoring System

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 752 ◽  
Author(s):  
Alberto Alvarellos ◽  
Marcos Gestal ◽  
Julián Dorado ◽  
Juan Ramón Rabuñal
Keyword(s):  
Open Source ◽  
Monitoring System ◽  
Environmental Protection Agency ◽  
Low Cost ◽  
The United States ◽  
International Agency ◽  
Processing Unit ◽  
Communication Module ◽  
Radon Monitoring ◽  
Radon Concentrations

Radon gas has been declared a human carcinogen by the United States Environmental Protection Agency (USEPA) and the International Agency for Research on Cancer (IARC). Several studies carried out in Spain highlighted the high radon concentrations in several regions, with Galicia (northwestern Spain) being one of the regions with the highest radon concentrations. The objective of this work was to create a safe and low-cost radon monitoring and alert system, based on open source technologies. To achieve this objective, the system uses devices, a collection of sensors with a processing unit and a communication module, and a backend, responsible for managing all the information, predicting radon levels and issuing alerts using open source technologies. Security is one of the largest challenges for the internet of things, and it is utterly important in the current scenario, given that high radon concentrations pose a health risk. For this reason, this work focuses on securing the entire end-to-end communication path to avoid data forging. The results of this work indicate that the development of a low-cost, yet secured, radon monitoring system is feasible, allowing one to create a network of sensors that can help mitigate the health hazards that high radon concentrations pose.

Remote Monitoring System of Textile Equipments Based on ZigBee Technology

2012 ◽  
Vol 472-475 ◽  
pp. 174-177
Author(s):  
Xue Song Zhang
Keyword(s):  
Monitoring System ◽  
Remote Monitoring ◽  
High Efficiency ◽  
Low Cost ◽  
Network Capacity ◽  
Remote Monitoring System ◽  
Zigbee Technology ◽  
Zigbee Network ◽  
Control Computer

In textile enterprise, the monitoring and maintenance of equipments is a big problem. There are many inconvenience by traditional wiring way, and this paper puts forward a remote monitoring system based on ZigBee technology with low cost and high efficiency. Through ZigBee network, this system transfers the data collected from on-the-spot equipments to center control computer, so as to realize the remote monitoring. The monitoring system has the advantages of network organizing flexible, low cost, big network capacity and so on, which particularly suitable for textile enterprise.

scholarly journals Near-infrared Integral-Field Spectrograph (NIFS): An Instrument Proposed for Gemini

1999 ◽  
Vol 16 (3) ◽  
pp. 273-287 ◽  
Author(s):  
Peter J. McGregor ◽  
Peter Conroy ◽  
Gabe Bloxham ◽  
Jan van Harmelen
Keyword(s):  
Control System ◽  
Near Infrared ◽  
High Efficiency ◽  
Low Cost ◽  
High Redshift ◽  
Target Velocity ◽  
Wide Range ◽  
Integral Field Spectrograph ◽  
Field Unit ◽  
Integral Field

AbstractIn late 1998 the International Gemini Project Office identified a need for a low cost, near-infrared spectrograph to be commissioned on the Gemini South telescope on the shortest possible timescale. In response, the Research School of Astronomy and Astrophysics of the Australian National University proposed to design, construct, and commission a near-infrared, integral-field spectrograph on Gemini. The science drivers and novel design of the Near-infrared Integral-Field Spectrograph (NIFS) are described in this paper. NIFS will achieve significant economies in cost and schedule in several ways:• By addressing targeted science with high efficiency. NIFS will primarily target velocity measurements in galaxies to study the demographics of black holes in galactic nuclei and the evolution of structural properties in high redshift galaxies. However, NIFS will also be applied to a wide range of general astronomical topics, but these will not dictate the instrument design.• By adopting a largely fixed-format design. A 3·2″ × 3·2″ ‘stair-case’ integral field unit (IFU) will feed a near-infrared spectrograph with four fixed-angle gratings mounted on a single grating wheel. A single, fixed-format camera will form the spectral image on a 2048 × 2048 Rockwell HgCdTe HAWAII-2 array. Two-pixel spectral resolving powers of ∼5400 will be achieved with complete wavelength coverage in each of the J, H, and K photometric bands through 32 optimally sampled 0·1″ wide slitlets. The velocity resolution of ∼55 km s−1 will be sufficient to achieve the targeted science objectives, and will allow software rejection of OH airglow lines.• By packaging the NIFS instrument within a duplicate of the Near-Infrared Imager (NIRI) cryostat. The NIRI cryostat, On-Instrument Wavefront Sensor (OIWFS), detector focusing mechanism, control system, and EPICS software will all be duplicated with only minimal change. Construction of the duplicate NIRI cryostat, OIWFS, and control system will be done by the University of Hawaii.

scholarly journals An open source Real Time IOT based environmental sensor monitoring system

10.29007/q4cf ◽  
2018 ◽  
Author(s):  
Ronak Vithlani ◽  
Siddharth Fultariya ◽  
Mahesh Jivani ◽  
Haresh Pandya
Keyword(s):  
Embedded System ◽  
Open Source ◽  
Real Time ◽  
Monitoring System ◽  
Information Structure ◽  
Low Cost ◽  
Environmental Parameters ◽  
Test Bed ◽  
Network Construction ◽  
Embedded Sensing

In this paper, we have described an operative prototype for Internet of Things (IoT) used for consistent monitoring various environmental sensors by means of low cost open source embedded system. The explanation about the unified network construction and the interconnecting devices for the consistent measurement of environmental parameters by various sensors and broadcast of data through internet is being presented. The framework of the monitoring system is based on a combination of embedded sensing units, information structure for data collection, and intellectual and context responsiveness. The projected system does not involve a devoted server computer with respect to analogous systems and offers a light weight communication protocol to monitor environment data using sensors. Outcomes are inspiring as the consistency of sensing information broadcast through the projected unified network construction is very much reliable. The prototype was experienced to create real-time graphical information rather than a test bed set-up.

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