Low-cost web-based Supervisory Control and Data Acquisition system for a microgrid testbed: A case study in design and implementation for academic and research applications

[EN] This paper presents the design and implementation of a low-cost Supervisory Control and Data Acquisition system based on a Web interface to be applied to a Hybrid Renewable Energy System (HRES) microgrid. This development will provide a reliable and low-cost control and data acquisition systems for the Renewable Energy Laboratory a Universitat Politecnica de Valencia (LabDER-UPV) in Spain, oriented to the research on microgrid stability and energy generation. The developed low-cost SCADA operates on a microgrid that incorporates a photovoltaic array, a wind turbine, a biomass gasification plant and a battery bank as an energy storage system. Sensors and power meters for electrical parameters, such as voltage, current, frequency, power factor, power generation, and energy consumption, were processed digitally and integrated into Arduino-based devices. A master device on a Raspberry-PI board was set up to send all this information to a local database (DB), and a MySQL Web-DB linked to a Web SCADA interface, programmed in HTML5. The communications protocols include TCP/IP, I2C, SPI, and Serial communication; Arduino-based slave devices communicate with the master Raspberry-PI using NRF24L01 wireless radio frequency transceivers. Finally, a comparison between a standard SCADA against the developed Web-based SCADA system is carried out. The results of the operative tests and the cost comparison of the own-designed developed Web-SCADA system prove its reliability and low-cost, on average an 86% cheaper than a standard brandmark solution, for controlling, monitoring and data logging information, as well as for local and remote operation system when applied to the HRES microgrid testbed.Vargas Salgado, CA.; Águila-León, J.; Chiñas-Palacios, C.; Hurtado-Perez, E. (2019). Low-cost web-based Supervisory Control and Data Acquisition system for a microgrid testbed: A case study in design and implementation for academic and research applications. Heliyon. 5(9):1-11. https://doi.org/10.1016/j.heliyon.2019.e02474S1115

Design and Deployment of a Web SCADA for an Experimental Microgrid Base on Open Source Software

[EN] Microgrids are a group of loads and distributed power generation sources acting as a single entity to provide power to the user or the grid. Since a Microgrid is a system of systems, this leads to an operability problem for local management and an interoperability problem for remote management. Operability and interoperability problems are solved by Data Acquisition and Control Systems (SCADA). There are several commercial platforms for the development of SCADA systems, being most of the time very expensive for the average user and even many universities. Therefore, this paper presents the design and implementation of a SCADA Web based on open-source software for experimental microgrids to allow the management of Microgrids remotely through the web. The Web-based SCADA system was developed for the Renewable Energy Laboratory (LabDER) of the Universitat Politècnica de València. An OMRON CPU CJ2M PLC was linked to a remote MYSQL database. A user interface was programmed using JAVA, and PHP languages perform operations and take data for the web-based SCADA system. The implemented SCADA system allowed monitoring and limited control of the LabdDER microgrid remotely, showing it to be an effective solution for Microgrids remote management.Águila León, J.; Vargas Salgado, CA.; Chiñas Palacios, CD.; Hurtado Pérez, EJ. (2021). Design and Deployment of a Web SCADA for an Experimental Microgrid Base on Open Source Software. En Proceedings INNODOCT/20. International Conference on Innovation, Documentation and Education. Editorial Universitat Politècnica de València. 165-173. https://doi.org/10.4995/INN2020.2020.11878OCS16517

Sistem Pakar Pembagian Waris (Faro\u27idl) Studi Kasus Kepakaran Kyai Rochmadi

Faro\u27idl is the science of division of inheritance be based Islamic rules already stated in the Qur\u27an. Someexperts faro\u27idl has built and formulate rules the division of inheritance in the specific tables. So as toresolve the division of inheritance cases, an expert can solve it by following the rules set out in the table.Expert system is part of artificial intelligence that is built to resemble an expert way of thinking in solvingproblems. Inheritance division expert system is a system that represents expertise that had been developedby an expert division of inheritance. Kyai Rochmadi is a faroidl expert who lived between the early 20thcentury until the 1970s of Weleri Kendal regency of Central Java has posted faro\u27idl rules in the form oftables and algorithms dispute resolution division of inheritance.This research is a design system based onthe expertise built by Kyai Rochmadi. With the design and development of research methodology, thesesystems are built with the knowledge acquisition phase, the design and development of data tables andprogramming algorithms. The system can resolve the problem faro\u27idl prepared with optimally resemblanceto the expertise of the expert when testing.Expert System is built using PHP programming language andMySQL database, for this system to be used by the general public. The results of this study are web-basedsystems. Users can enter data such as the number of heirs to the input field, then the system will answersection obtained as heirs along with the arguments that support it. Keywords: expert system, faro\u27id (division of inheritance), a web-based syste

Sistem Akuisisi Data Multiplatform Berbasis PC Dengan Tampilan Hasil Di Twitter

Computer or Personal Computer (PC) based data acquisition system had enabled the measurement of physical parameters, not only to display and store them in the computer but also to send them to a website. Twitter as one of web services for social media that provides the facility to display 140-character length of text status has been deemed sufficient for the purpose of displaying the latest data and is accessible through available Application Programming Interface (API). The purpose of this research is to design a PC-based data acquisition system which is capable to conduct measurement, storage and transmission of data to the web service via Twitter API. The proposed system was consisted of LM35 temperature sensor to measure room temperature, Arduino Nano microcontroller and a data acquisition application in PC to display and store data in a Comma-Separated Values (CSV) file. Based on test results for processes involving Analog to Digital Converter (ADC), the obtained error is 3.71% for voltage value and the average difference between measured values and displayed ones is 0.01 V. Average error for temperature measurement is 5.13% and the difference between measured values and the displayed ones is 1.34°C. Built application had produced an adequate display of interface and fulfilled all required functionalities. Average response time of Twitter API to Choreo is 0.18 s while average time to transmit data from application to Twitter is 2.15 s or 11.75 times longer. In later development, LM35 should be replaced with a more precise sensor. The occurrence of randomness in measurement results could be minimized by adding an active filter circuit between sensor and microcontroller

Web 2.0-based Collaborative Multicriteria Spatial Decision Support System: A Case Study of Human-Computer Interaction Patterns

The integration of GIS and Multicriteria Decision Analysis (MCDA) capabilities into the Web 2.0 platform offers an effective Multicriteria Spatial Decision Support System (MC-SDSS) with which to involve the public, or a particular group of individuals, in collaborative spatial decision making. Understanding how decision makers acquire and integrate decision-related information within the Web 2.0-based collaborative MC-SDSS has been one of the major concerns of MC-SDSS designers for a long time. This study focuses on examining human-computer interaction patterns (information acquisition behavior) within the Web 2.0-based MC-SDSS environment. It reports the results of an experimental study that investigated the effects of task complexity, information aids, and decision modes on information acquisition metrics and their relations. The research involved three major steps: (1) developing a Web 2.0-based analytic-deliberative MC-SDSS for parking site selection in Tehran, Iran to analyze human-computer interaction patterns, (2) conducting experiments using this system and collecting the human-computer interaction data, and (3) analyzing the log data to detect the human-computer interaction patterns (information acquisition metrics). Using task complexity, decision aid, and decision mode as the independent factors, and the information acquisition metrics as the dependent variables, the study adopted a repeated-measures experimental design (or within-subjects design) to test the relevant hypotheses. Task complexity was manipulated in terms of the number of alternatives and attributes at four levels. At each level of task complexity, the participants carried out the decision making process in two different GIS-MCDA modes: individual and group modes. The decision information was conveyed to participants through common map and decision table information structures. The map and table were used, respectively, for the exploration of the geographic (or decision) and criterion outcome spaces. The study employed a process-tracing method to directly monitor and record the decision makers’ activities during the experiments. The data on the decision makers’ activities were recorded as Web-based event logs using a database logging technique. Concerningiv task complexity effects, the results of the study suggest that an increase in task complexity results in a decrease in the proportion of information searched and proportion of attribute ranges searched, as well as an increase in the variability of information searched per attribute. This finding implies that as task complexity increases decision makers use a more non-compensatory strategy. Regarding the decision mode effects, it was found that the two decision modes are significantly different in terms of: (1) the proportion of information search, (2) the proportion of attribute ranges examined, (3) the variability of information search per attribute, (4) the total time spent acquiring the information in the decision table, and (5) the average time spent acquiring each piece of information. Regarding the effect of the information aids (map and decision table) on the information acquisition behavior, the findings suggest that, in both of the decision modes, there is a significant difference between information acquisition using the map and decision table. The results show that decision participants have a higher number of moves and spend more time on the decision table than map. The study presented in this dissertation has implications for formulating behavioral theories in the spatial decision context and practical implications for the development of MC-SDSS. Specifically, the findings provide a new perspective on the use of decision support aids, and important clues for designers to develop an appropriate user-centered Web-based collaborative MC-SDSS. The study’s implications can advance public participatory planning and allow for more informed and democratic land-use allocation decisions

A cross-sectional survey of supports for evidence-informed decision-making in healthcare organisations: a research protocol

Background: This protocol builds on the development of a) a framework that identified the various supports (i.e. positions, activities, interventions) that a healthcare organisation or health system can implement for evidence-informed decision-making (EIDM) and b) a qualitative study that showed the current mix of supports that some Canadian healthcare organisations have in place and the ones that are perceived to facilitate the use of research evidence in decision-making. Based on these findings, we developed a web survey to collect cross-sectional data about the specific supports that regional health authorities and hospitals in two Canadian provinces (Ontario and Quebec) have in place to facilitate EIDM. Methods/design This paper describes the methods for a cross-sectional web survey among 32 regional health authorities and 253 hospitals in the provinces of Quebec and Ontario (Canada) to collect data on the current mix of organisational supports that these organisations have in place to facilitate evidence-informed decision-making. The data will be obtained through a two-step survey design: a 10-min survey among CEOs to identify key units and individuals in regard to our objectives (step 1) and a 20-min survey among managers of the key units identified in step 1 to collect information about the activities performed by their unit regarding the acquisition, assessment, adaptation and/or dissemination of research evidence in decision-making (step 2). The study will target three types of informants: CEOs, library/documentation centre managers and all other key managers whose unit is involved in the acquisition, assessment, adaptation/packaging and/or dissemination of research evidence in decision-making. We developed an innovative data collection system to increase the likelihood that only the best-informed respondent available answers each survey question. The reporting of the results will be done using descriptive statistics of supports by organisation type and by province. Discussion This study will be the first to collect and report large-scale cross-sectional data on the current mix of supports health system organisations in the two most populous Canadian provinces have in place for evidence-informed decision-making. The study will also provide useful information to researchers on how to collect organisation-level data with reduced risk of self-reporting bias

Hiking Gears Comparing System (HGCS) using web scraping technique / Azrul Nazrin Hamdan

This project is about the development of Hiking Gears Comparing System (HGCS) for people who love to do hiking activity around Malaysia. Hiking is one of the favorite outdoor activities in Malaysia. One of the factors of people tend to carry out hiking activity is because the Malaysia landform that has many hills and mountain. So, people in Malaysia like this challenging activity to fulfill their interest and care about their healthiness. In order to carry out this activity, hikers need to use the suitable equipment or gears. Hiking gears consist of hiking backpacks, hiking footwear, hiking clothing, tents and survival kit. Hikers normally buys the hiking gears either walk in at the shop or buy through online. The problems that have been identified when the hikers want to buy the hiking gears, most of them do not know the best websites that promote the best products based on the price and the functionality. They need to open many websites to make a survey for the products that they want to buy. HGCS used the web scraping technique to extract the data from the websites that provide hiking gears. This technique has been identified in the knowledge acquisition phase. From the extracted data, HGCS will compare the products based on price, product category and functionality. This project applied the waterfall model methodology. The phases included in this project is knowledge acquisition, requirement gathering and analysis, design and implementation. Findings and analysis was done to ensure that the objectives of this project are tally with the phases in methodology. For the future work, this system may include some others outdoor activities gears, for example, rock climbing gears, cycling gears or kayaking gears. In addition, extract data from more websites that sell the hiking gears by using the web scraping technique

SISTEM PAKAR PEMBAGIAN WARIS (FARO’IDL) STUDI KASUS KEPAKARAN KYAI ROCHMADI

ABSTRACTFaro'idl is the science of division of inheritance be based Islamic rules already stated in the Qur'an. Someexperts faro'idl has built and formulate rules the division of inheritance in the specific tables. So as toresolve the division of inheritance cases, an expert can solve it by following the rules set out in the table.Expert system is part of artificial intelligence that is built to resemble an expert way of thinking in solvingproblems. Inheritance division expert system is a system that represents expertise that had been developedby an expert division of inheritance. Kyai Rochmadi is a faroidl expert who lived between the early 20thcentury until the 1970s of Weleri Kendal regency of Central Java has posted faro'idl rules in the form oftables and algorithms dispute resolution division of inheritance.This research is a design system based onthe expertise built by Kyai Rochmadi. With the design and development of research methodology, thesesystems are built with the knowledge acquisition phase, the design and development of data tables andprogramming algorithms. The system can resolve the problem faro'idl prepared with optimally resemblanceto the expertise of the expert when testing.Expert System is built using PHP programming language andMySQL database, for this system to be used by the general public. The results of this study are web-basedsystems. Users can enter data such as the number of heirs to the input field, then the system will answersection obtained as heirs along with the arguments that support it. Keywords: expert system, faro'id (division of inheritance), a web-based system ABSTRAKFaro’idl adalah ilmu pembagian harta waris menurut islam yang aturan-aturannya sudah tertera dalam AlQur’an. Beberapa pakar faro’idl telah membangun dan merumuskan aturan-aturan pembagian harta waristersebut dalam tabel-tabel yang spesifik. Sehingga untuk menyelesaikan kasus pembagian harta warisseorang pakar dapat menyelesaikannya dengan mengikuti aturan-aturan yang tertuang dalam tabel tersebut.Sistem pakar adalah bagian dari kecerdasan buatan yang dibangun untuk menyerupai cara berfikir seorangpakar dalam menyelesaikan masalah. Sistem pakar pembagian harta waris adalah sistem yangmerepresentasikan kepakaran yang telah disusun oleh seorang pakar pembagian harta waris. KyaiRochmadi seorang pakar faro’idl yang hidup antara awal abad 20 hingga tahun 1970 an dari WeleriKabupaten Kendal Jawa Tengah telah membukukan aturan-aturan faro’idl dalam bentuk tabel-tabel danalgoritma penyelesaian permasalahan pembagian harta waris. Penelitian ini adalah penelitian rancangbangun sistem yang berbasis pada kepakaran yang dibangun oleh Kyai Rochmadi. Dengan metodologipenelitian design and development, sistem ini dibangun dengan tahapan akuisisi pengetahuan, perancangantabel data dan pengembangan algoritma dan pemrograman. Sistem yang disusun dapat menyelesaikanmasalah faro’idl dengan mempunyai kemiripan secara optimal terhadap kepakaran sang pakar saatpengujian. Sistem Pakar ini dibangun menggunakan bahasa pemrograman PHP dan database MySQL, agarsistem ini dapat digunakan oleh masyarakat secara umum. Hasil penelitian ini berupa sistem berbasis web.Pengguna dapat memasukkan data berupa jumlah ahli waris ke dalam kolom input, selanjutnya sistem akanmenjawab bagian yang didapatkan sebagai ahli waris beserta dalil yang mendukungnya. Kata kunci: sistem pakar, faro’id (pembagian waris), sistem berbasis we

ANALYSIS AND DESIGN OF ENTERPRISE ARCHITECTURE USING TOGAF ADM IN PRODUCT DEVELOPMENT DIVISION AND PRODUCTION AND OPERATION DIVISION OF PT. INTI (PERSERO)

PT. Industri Telekomunikasi Indonesia (Persero) or PT. INTI (Persero) is a state-owned enterprise that has been engaged in telecommunication industry for more than 35 years. Having some business lines, last time PT. INTI (Persero) is focusing on the engineering solution. But recently, the enterprise changes its business focus to be the manufacturing business, to increase the enterprise’s sales and profit. This target is set as the long-term plan of the enterprise. Thus, the support of information system and technology and its alignment with the manufacturing business are needed for the business improvement. Enterprise Architecture or EA has been so useful for the enterprise in order to have the alignment between business and information system and technology. These architectures include the business, data, information, and technology architecture. In this research, The Open Group Architecture Framework’s Architecture Development Method (TOGAF ADM) is used. This framework includes the guidance of the overall process in designing architectures, with a cycle-based method and some phases. This research consists of 6 phases of TOGAF ADM (from Preliminary Phase until the Opportunities and Solutions Phase), and the study is about the Product Development Division and Production and Operation Division in PT. INTI. The design of both baseline and target architecture are needed in order to see the gap that can be improved. There are 3 artifacts (catalogs, diagrams, and matrices) that can support the architectures’ design. The application that is used for the design is MEGA Suite. Manufacturing Execution System (MES) is the recommendation for this research’s target architecture. This web-based application can support the data acquisition, monitoring, and performance analysis of the production operations, from raw materials to finished goods. MES has some integrated modules (material, maintenance, production, and quality) but this research is only focusing on the production module. Moreover, this system can be integrated externally with the Enterprise Resource Planning (ERP) System that PT. INTI already has, through the enterprise-factory integration with. Hopefully, the system can help to improve the manufacturing execution process, in order to improve the manufacturing business of the enterprise. Keywords: Enterprise Architecture, Manufacturing Business, TOGAF ADM, Product Development Division, Production and Operation Division, Manufacturing Execution Syste

The future of technology enhanced active learning – a roadmap

The notion of active learning refers to the active involvement of learner in the learning process, capturing ideas of learning-by-doing and the fact that active participation and knowledge construction leads to deeper and more sustained learning. Interactivity, in particular learnercontent interaction, is a central aspect of technology-enhanced active learning. In this roadmap, the pedagogical background is discussed, the essential dimensions of technology-enhanced active learning systems are outlined and the factors that are expected to influence these systems currently and in the future are identified. A central aim is to address this promising field from a best practices perspective, clarifying central issues and formulating an agenda for future developments in the form of a roadmap