Crop weight measurement sensor for IoT based industrial greenhouse systems

ArticleNo wadays the industrial management systems are changing by means of implementing various Internet of Things (IoT) technologies, allowing a simple integration of sensor technologies with wireless communications and development of cloud based database solution s. The industrial greenhouse management systems are not the exception in this regard, as they are becoming more and more popular with the use of various sensors for the automation of the vegetable and other crop cultivation process.The general aim they hav e is to raise the level of process automation, quality, energy efficiency and other important parameters. The implemented technologies and environment of industrial greenhouse can be different fir the research type laboratories, as they are focused on prod uction, therefore this research is conducted in cooperation with tomato producing industrial greenhouse of SIA ‘ Latgales darzenu logistika ’ focusing on IoT based crop weight measurement

Development and testing results of IoT based air temperature and humidity measurement system for industrial greenhouse

ArticleIn dustrial greenhouse control systems are changing and getting new capabilities, due to the evolution of the Internet of Things (IoT) technologies, allowing wirelessly integrate various sensor technologies and create a cloud - based database and analytic solut ions. Greenhouse systems typically are controlled by consuming single temperature and humidity measurement unit data (treated as an average value), this raises a question about the precision of such approach for application in a large industrial greenhouse . In this article IoT based temperature and humidity measurement system uMOL architecture is described and first measurement results of multi - point data collection with high resolution compared to existing single - point measurements

COVID-19 and household energy implications: what are the main impacts on energy use?

This study explores the impacts of COVID-19 on household energy use. Some of these impacts are associated with longer-term energy demand changes and some could just be temporary. The study intends to present the results of a small pilot study conducted in China, by addressing household energy use. The samples are from 352 households and particularly focus on primary energy use in three periods of pre-pandemic (and pre-lockdown), start of COVID-19 outbreak and lockdown, and post lockdown. Each period is identified as a timeframe of 2.5 months, from November 2019 to late June 2020. The samples of this study highlight the primary implications of energy use, some that are understood as interim changes and some that may appear to be more prolonged. The results from the study highlight a variety of impacts on household energy use as well as prolonged impacts on transportation use. The primary household energy use are assessed in six fundamental elements of (1) transportation for commuting and leisure (for both private and public modes), (2) cooking, (3) entertainment, (4) heating and cooling, (5) lighting, and (6) the others. The results are summarized in three sections focused on major impacts on transportation use (comparison between private and public modes), cooking and entertainment, heating/cooling and lighting. The results could provide early suggestions for cities/regions that are experiencing longer lockdown. Furthermore, this study provides insights for larger-scale research in assessing household energy use/demand during times of health emergency and crises, such as the event of a pandemic

Simulation of Induction Traction Drive with Supercapacitor Energy Storage System Test Bench

This paper describes the application of supercapacitor energy storage system for induction traction drive test bench that replaces a real electric public transport for performing testing and researches. The suitability and usages of such bench for research circumstances are explained and the importance of the development of software mathematical model for performing simulations, which should be done before physical implementation measures, is reasoned. Also the working principle of the bench and applied components is described. A virtual model of the bench was built and simulations performed by using Matlab/Simulink software. The basic topology of the virtual bench model is described as well. The calculation part of this work shows the scaling of supercapacitor energy storage system by setting up different limits of working voltage range in order to adjust them to test bench parameters whereas the modelling part compares two simulation cases – the application of lesser supercapacitors and the application of more supercapacitors with the same common nominal voltage. Also autonomous mode simulations were performed. Simulation results are analyzed and recommendations for the application of the supercapacitor energy storage system, with respect to initial supercapacitor circuit voltage, are given

Simulation of Induction Traction Drive with Supercapacitor Energy Storage System Test Bench

The paper describes the application of supercapacitor energy storage system for induction traction drive test bench that replaces a real electric public transport for performing testing and researches. The suitability and usage of such bench for research purposes is explained and the importance of the development of software mathematical model for performing simulations to be done before physical implementation measures is reasoned. The working principle of the bench and applied components are described. A virtual model of the bench was built and simulations were performed using Matlab/Simulink software. The basic topology of the virtual bench model is described as well. The calculations of this work show the scaling of supercapacitor energy storage system by setting different limits of working voltage range in order to adjust them to test bench parameters, whereas the modelling compares two simulation cases – the application of less supercapacitors and the application of more supercapacitors with the same common rated voltage. The autonomous mode simulations were also performed. Simulation results are analyzed and recommendations for the application of the supercapacitor energy storage system, with respect to initial supercapacitor circuit voltage, are given

Development of Energy Monitoring System for SmartGrid Consumer Application

Part 13: Energy Smart GridInternational audienceThe number of electricity consuming equipment for existing household end-user is continuing to increase, and some residential buildings already consume more energy than existing building regulations prescribe. The uprising SmartGrid technology with alternative energy sources could be a key to solve this problem, but it is demanding also for a “smarter” consumer with ability to monitor and manage his loads. Such a monitoring system can also improve energy efficiency, as it can change consumer non-saving habits, by teaching him possibilities where the energy can be saved. Therefore the paper is devoted to development of new concept of household energy consumption monitoring system. Due to new approach of energy monitoring, the costs of needed metering equipment and total metering system are lowered. The proposed method provides energy consumption apportionment between consumers instead of precise energy consumption metering for each consumer type

Power Measurement and Data Logger Device with High-Resolution for Industrial DC-Grid Application

Abstract – power and energy measurement and monitoring is a key leading factor for many industries in terms of energy and cost efficiency evaluation. Due to trends of Smart Grid concept application in industrial environment, including decentralized DC-Grid implementation, for precise evaluation - faster and lower cost measurement equipment is needed. Manufacturing industry use lot of industrial robots that have dynamic load characteristics, and to know their consumption faster measurement equipment is needed. This paper gives brief description of developed power measurement equipment, its structure and interconnection to industrial PROFInet network. Further as a testing method steady state and dynamic loads are selected and analyzed. For testing, specially created industrial DC-Grid testing environment and equipment has been used. Testing results shows that selected method and idea is working, and it is able to measure dynamic loads with high resolution. For other industrial load types, discussion rises, about how detailed resolution is needed in industrial SmartGrids, as energy forecast is a new trend in robotic industry, and manufacturing planning

Power Measurement and Data Logger with High-Resolution for Industrial DC-Grid Application

Power and energy measurement and monitoring is a key factor for many industries in terms of energy and cost efficiency evaluation. Due to trends of Smart Grid concept application in industrial environment, including decentralized DC-Grid implementation, for precise evaluation – faster and low-cost measurement equipment is needed. Manufacturing industry widely uses industrial robots that have dynamic load characteristics for which faster measurement equipment is needed

Smart City Street Lighting System Quality and Control Issues To Increase Energy Efficiency and Safety

According to standards, the lighting system is one of the key elements to provide safety on city roads, defined by quality parameters. LED technology and movement detection sensor interaction bring about new regulation techniques, creating an energy-efficient smart LED lighting system concept. This paper reveals extensive comparative data analysis of Dialux simulation results before the project implementation phase and in-situ quality parameter measurements for various street profiles and LED luminary power types. After the project implementation phase, more than 1000 measurement points are reached. Further, energy efficiency increase issues in smart lighting systems are described in terms of LED luminary dimming profile analysis and future dynamic control application modes. The first findings clearly show that in most cases light output in simulation results is lower than in real situations; therefore, LED luminary power can be decreased, allowing for higher energy savings in first luminary maintenance years, keeping the same defined ME class or safety level. Let us suppose that the traffic intensity data are obtained from smart system sensors. In that case, the ME class can be dynamically selected during different night times, thus increasing safety and providing extra energy savings using the same system elements, as well as leading to better ROI values

Sustainable Approach Development for Education of Electrical Engineers in Long-Term Online Education Conditions

The prolongation of the online education period is a significant challenge nowadays in Ukraine. Due to the ongoing war in Ukraine, educational institutions have been destroyed, leading to a significant movement of students both within the country and abroad. Consequently, the quality of educational services has suffered, particularly in technical specialties that require hands-on and laboratory work. The objective of this article is to explore solutions for training Ukrainian students in technical fields under the circumstances of war, with a focus on ensuring their safety and improving the overall quality of education. This article analyzes the existing methods of conducting laboratory work in remote settings. It identifies that distance learning at foreign universities, without the necessity of physical relocation, holds the most promising potential. Moreover, it recommends leveraging the “My Digital Electrical Engineering” (MDEE) laboratory, developed at RTU, for conducting remote laboratory work. A comprehensive examination of the MDEE laboratory is presented, along with a step-by-step algorithm for integrating it into the educational process at KhNAHU. The findings of this study can be utilized to enhance distance learning practices in Ukrainian technical universities. This, in turn, will enable students to continue their education during the war while ensuring their safety and facilitating the acquisition of knowledge at a high standard