Journal of Electrical Engineering and Informatics

DESIGN OF ANDROID-BASED ZAKAT INFORMATION SYSTEM APPLICATION AT BABUL FIRDAUS MOSQUE

Kasmawati, Mustamin, Hasrul — Thu, 20 Mar 2025 00:00:00 +0800

This research aims to make it easier for the community to do zakat and improve the data collection system. The method used is Research and Development (R&D) with a prototype development model, as well as data collection techniques through interviews, observations, and questionnaires. The result of this research is an Android-based zakat information system application intended for admins and people who want to do zakat at the Babul Firdaus Mosque. This application is tested using the ISO 25010 standard with four main aspects: functional suitability, portability, usability, and performance efficiency. Functional suitability testing by the validator lecturer shows that this application is "Feasible" to use. Portability testing is carried out by observing the output results on different versions of Android. Usability was tested by users and mosque administrators with a result of "Very Good". Performance efficiency is measured using the Android Studio profiler, showing CPU usage of less than 50%, 250 MB memory, and network activity of 64 Kb/s. This application has been accepted by users and is effectively used as a medium to make it easier for people to do zakat.

ANALYSIS OF CONTROL SYSTEM RELIABILITY AT PLTG UPDK TELLO

Ardiansyah Al Izzah, Mustari S Lamada, Zulhajji, Al Imran, Riana T Mangesa — Thu, 20 Mar 2025 00:00:00 +0800

This study analyzes the reliability of the control system at the UPDK Tello Gas Power Plant (PLTG) with a focus on critical components that affect systemperformance. The evaluation was conducted using three main indicators: availability, Mean Time to Failure (MTTF), and Mean Time to Repair (MTTR), andtheir impact on operational efficiency. Quantitative descriptive research method was applied through Failure Mode and Effects Analysis (FMEA) analysis, direct observation, and maintenance document study. The results showed variations in reliability between components. In GE#1, the TCDA card has the highest RPN value of 156, availability 0.9995435874, MTTF 13139.99999 hours, MTTR 5.999999999 hours, reliability 0.1353352832, and operationalefficiency 99.95431704%. At GE#2, the exhaust thermocouple has the highest RPN of 192 with a reliability of 0.04978706857, while the 1.5 A fuse has the lowest availability of 0.9994675591, MTTF of 26279.99999 hours, MTTR of 14 hours, and operational efficiency of 99.94672755%. The average operational efficiency at GE#1 and GE#2 are 99.9866758% and 99.98731608% respectively. The results show that the system still meets operating standards although there are significant differences between the RPN values and other reliability indicators. Components with high RPN do not always have the lowest availability or operational efficiency. This research emphasizes the importance of a multi-indicator approach in reliability analysis as well as the need for customized maintenance strategies for each critical component.

FINANCIAL PERFORMANCE INFORMATION SYSTEM AT THE ANDROID-BASED DIRA JAYA SINAR RESKI COOPERATIVE

Sartika, Ridwansyah, Haripuddin — Thu, 20 Mar 2025 00:00:00 +0800

This study aims to find out the results of the design and testing results of ISO 25010 on the application of financial performance information system in the Android-based Dira Jaya Sinar Reski cooperative. This research uses a type of R&D (Research and Development) that uses a waterfall development model. The data collection techniques used are interviews, observations, documentation, and questionnaires/questionnaires. Based on the results of the research, a Financial Performance Information System was developed at the Android-Based Dira Jaya Sinar Reski Cooperative which has been tested using ISO 25010 testing using 4 aspects of testing including functional suitability, usability, performance efficiency, and portability. The final result of the overall assessment is that the financial performance information system in the Dira Jaya Sinar Reski cooperative based on android can be accepted to be used as a medium that makes it easier for the admin of the Dira Jaya Sinar Reski cooperative in Takalar Regency in managing financial data on savings and loans in the Dira Jaya Sinar Reski cooperative in Takalar Regency.

DESIGN, IMPLEMENTATION, AND EVALUATION OF AN ELECTRICAL ENERGY CONSUMPTION MONITORING SYSTEM IN HAJI RANI BUILDING USING ARDUINO UNO MICROCONTROLLER

Thu, 20 Mar 2025 00:00:00 +0800

This study aims to design, implement, and evaluate a real-time electrical energy consumption monitoring system in the Haji Rani Building using the Arduino Uno microcontroller and the Blynk platform. The system integrates the PZEM-004T sensor for measuring voltage, current, power, and electrical energy, while the Wemos D1 Mini facilitates wireless data transmission via a Wi-Fi network. The research follows a Research and Development (R&D) methodology with a prototype development model. Data collection techniques include observation, documentation, and direct testing. The test results indicate that the developed system has a good level of accuracy, with an average deviation of 4.21% compared to standard measuring instruments. Despite minor deviations, the system successfully provides real-time monitoring with a fast response through the Blynk application, enabling remote access. Functionality evaluation using the Guttman scale, conducted by two content experts, confirms that the system meets the expected standards in terms of reliability, accuracy, and usability. However, the system's reliance on a stable Wi-Fi connection may affect monitoring reliability in areas with poor network coverage. Additionally, the accuracy of the PZEM-004T sensor, while acceptable for general monitoring, could be improved with more precise sensors. Future research should focus on integrating more accurate sensors, implementing machine learning algorithms for energy consumption analysis, and developing an automated IoT-based energy management system. By addressing these aspects, the proposed system can be further enhanced to improve energy efficiency and sustainability.

DESIGN OF A PROTOTYPE FOR SOIL MOISTURE MONITORING AND WATERING CONTROL OF CHILI PLANTS BASED ON IOT (INTERNET OF THINGS) USING BLYNK

Fri, 21 Mar 2025 00:00:00 +0800

This study aims to develop an IoT-based prototype system for monitoring soil moisture and controlling irrigation in chili plants using the Blynk platform. The research employs a Research and Development (R&D) approach with a prototypedevelopment model. The system integrates a capacitive soil moisture sensor (Soil Moisture Sensor Capacitive V1.2) to measure soil moisture levels and automate irrigation decisions. The system's effectiveness was evaluated through 56 trials, achieving a 98.15% success rate, indicating high reliability in providing real-time soil moisture data. The usability assessment showed that all respondents rated the system positively, with functionality reaching 100% feasibility and usability rated at 86.3%, categorized as very good. However, further analysis is needed to validate the questionnaire used in usability testing and assess whether training is required for farmers to operate the system efficiently. In terms of reliability, the system recorded a 5% sensor accuracy deviation, highlighting the need for additional calibration and comparative testing with alternative sensors. Overall, this system has the potential to enhance agricultural productivity and optimize water usage, reducing dependence on manual irrigation. Future research should focus on improving system connectivity, refining sensor accuracy, and expanding the system's application to various crops and environmental conditions to promote sustainable and technology-driven farming practices.

DESIGN AND DEVELOPMENT OF A WEB-BASED MENU ORDERING SYSTEM AT KOPITAWA CAFE USING QR CODE

Erwin Sudirman, Zulhajji, Abdul Muis Mappalotteng — Fri, 21 Mar 2025 00:00:00 +0800

This study aims to determine the design outcomes and testing results of the menu ordering system at Kopitawa Café.The research employed an R&D (Research and Development) approach and utilized the waterfall development model, incorporating data collection techniques such as observation, interviews, and questionnaires. Based on the study's findings, a web-based menu ordering system for Kopitawa Cafe was successfully designed and developed using QR codes. The system was tested following the ISO/IEC 25010 standard, which includes eight testing aspects. The results indicate that the designed system is feasible and ready for use. This study aims to design and develop a web-based menu ordering system at Kopitawa Cafe using QR Code technology. The research method follows Research and Development (R&D) with the Waterfall development model, including requirements analysis, system design, implementation, verification, and maintenance. The system was tested based on ISO/IEC 25010 standards, covering eight key aspects: functionality suitability, usability, reliability, performance efficiency, maintainability, compatibility, portability, and security. The results indicate that the developed system achieved 100% success in functionality testing, with a usability score of 91.03%, categorized as "excellent". Performance testing using GTMetrix resulted in a 57% (Grade C) score, with a 5.2-second loading time. Portability testing confirmed that the system operates smoothly on various devices and operating systems. Security testing with Quttera verified that the system meets basic security standards. However, this study has some limitations, including the need for further optimization of system performance, dependency on Firebase, which may impact scalability, and security aspects that require additional penetration testing. Future research should focus on improving system speed, enhancing security features, and exploring alternative database solutions.

LIGHT INTENSITY STUDY IN SYEKH YUSUF GENERAL HOSPITAL, GOWA DISTRICT, SOUTH SULAWESI PROVINCE

Ripladi, Satria Gunawan Zain, Muhammad Yusuf Mappeasse — Fri, 21 Mar 2025 00:00:00 +0800

Lighting plays a crucial role in hospital environments, directly impacting the efficiency of medical staff and the comfort of patients. This study aims to analyze the light intensity in various rooms of Syekh Yusuf General Hospital, Gowa District, South Sulawesi Province, and evaluate its compliance with the Indonesian Ministry of Health Regulation No. 24 of 2016. A descriptive quantitative approach was employed, with data collected through observations, direct measurements using a lux meter, and documentation. Measurements were conducted in 51 rooms, including inpatient rooms, delivery rooms, laboratories, emergency rooms, polyclinics, and the lobby. The results indicate that 46 rooms (90%) meet the required lighting standards, while five rooms do not due to factors such as dim or unclean light fixtures and poorly maintained luminaires. The findings align with previous studies emphasizing the importance of optimal lighting in healthcare settings to reduce eye strain, enhance productivity, and improve patient recovery. The study highlights the need for regular evaluations and a structured maintenance program to ensure consistent lighting quality. Implementing automated lighting systems and tailored illumination for specific hospital functions is recommended to enhance both medical efficiency and patient well-being.

APPLICATION OF ARTIFICIAL NEURAL NETWORK (ANN) METHOD TO FORECAST LONG-TERM ELECTRICITY LOAD (CASE STUDY: KARANRANG ISLAND)

Raya Pasangkunan — Fri, 28 Mar 2025 00:00:00 +0800

In the islands, the use of electrical energy is not only for household purposes, but also to support the education, health, small industry and transport sectors. This increase in electrical energy demand is increasingly urgent, given the importance of electricity in driving technology, improving people's quality of life, and supporting the sustainability of life, thus requiring special attention to maintain the availability of electrical energy. Grid management involves proper planning of load requirements. Therefore, accurate load forecasting will ensure the safe, reliable, and economical operation of power systems. In recent years, researchers have proposed many models for electricity forecasting. In this study, the backpropagation ANN method is used to forecast electrical energy demand until 2035 on Karanrang island which will be compared with the prediction results using the linear regression method. Based on the results of research and discussion of the prediction results, it can be concluded that the MAPE value of the backpropagation ANN is 8% and from the linear regression method is 10.4% so it can be concluded that prediction with the backpropagation ANN method is more optimal. The MAPE value of 8% is categorised as a very good prediction result.