Abstract:Abstract: The development of Internet of Things (IoT) technology has driven progress in electrical device monitoring and control systems, especially in single-phase installations. This research aims to design and implement…
nt an Android-based single-phase electrical load monitoring and control system by utilizing the PZEM-004T sensor to measure voltage, current, and power in real-time. This system uses two microcontrollers, namely Arduino Nano as the main processor of sensor data and ESP32 to send data to the Blynk application via a WiFi connection. The Blynk application serves as a user interface, enabling remote monitoring and control of electrical loads through a smartphone. Three PZEM-004T sensors are used to monitor three separate load channels, while a 4-channel relay module acts as an actuator to control the ON/OFF status of each load. The system was tested under various load conditions to verify the accuracy of the sensor readings and the responsiveness of control commands via Blynk. This system is not only effective for monitoring and controlling power usage efficiently, but it also holds great potential as a learning tool in the fields of electronics and IoT-based electrical system applications for residential or laboratory environments.
Â
Keywords: Internet of Things, ESP32, PZEM-004T, Load Monitoring, Power Control
Â
Abstrak: Perkembangan teknologi Internet of Things (IoT) telah mendorong kemajuan dalam sistem monitoring dan kontrol perangkat listrik, terutama pada instalasi satu fasa. Penelitian ini bertujuan merancang dan mengimplementasikan sistem monitoring dan kontrol beban listrik satu fasa berbasis Android dengan memanfaatkan sensor PZEM-004T untuk mengukur tegangan, arus, dan daya secara real-time. Sistem ini menggunakan dua mikrokontroler, yaitu Arduino Nano sebagai pengolah utama data sensor dan ESP32 untuk mengirimkan data ke aplikasi Blynk melalui koneksi WiFi. Aplikasi Blynk digunakan sebagai antarmuka pengguna yang memungkinkan monitoring data dan pengendalian beban secara jarak jauh melalui smartphone. Tiga sensor PZEM-004T digunakan untuk memantau tiga saluran beban yang berbeda, sedangkan modul relay 4 channel digunakan sebagai aktuator yang mengontrol status hidup atau mati masing-masing beban. Sistem diuji dengan berbagai variasi kondisi beban untuk memastikan keakuratan pembacaan sensor dan kecepatan respon kontrol melalui Blynk. Sistem ini tidak hanya efektif untuk mengontrol dan memantau penggunaan energi listrik secara efisien, tetapi juga sangat potensial untuk digunakan sebagai media pembelajaran dalam bidang elektronika dan pemanfaatan teknologi IoT pada instalasi listrik rumah tangga atau laboratorium.
Â
Kata kunci: Internet of Things, ESP32, PZEM-004T, Monitoring Beban, Kontrol Daya
Abstract:Abstract: Runway Guard Light (RGL) is an airport safety lighting system that provides visual warnings to pilots before entering an active runway area. This study aims to design and develop a microcontroller-based RGL replica…
lica as a learning tool in the Airfield Lighting System Laboratory of the Polytechnic of Aviation Medan, allowing students to directly understand the working principles of airfield lighting safety systems. The system employs Arduino Uno as the main controller, a 12V power supply, LM2596 step-down module, IRF520 MOSFET module, and 12V LED lamps as visual indicators. The applied method is Research and Development (R&D), consisting of design, construction, and testing stages. The test results indicate that the device can display alternating blinking light patterns according to RGL configuration standards A and B. This prototype is expected to serve as an effective educational aid to support aviation safety learning in the academic environment.
Â
Keywords: Â Runway Guard Light, Microcontroller, Arduino Uno, Aviation Safety.
Â
Abstrak: Runway Guard Light (RGL) merupakan sistem lampu keselamatan di bandara yang memberikan peringatan visual kepada pilot sebelum memasuki area runway aktif. Penelitian ini bertujuan untuk merancang dan membangun sebuah replika RGL berbasis mikrokontroler sebagai media pembelajaran di Laboratorium Airfield Lighting System Politeknik Penerbangan Medan, agar mahasiswa dapat memahami prinsip kerja sistem pencahayaan keselamatan bandara secara langsung. Sistem ini menggunakan Arduino Uno sebagai mikrokontroler utama, power supply 12V, modul step-down LM2596, modul MOSFET IRF520, dan lampu LED 12V sebagai output visual. Metode yang digunakan adalah Research and Development (R&D), melalui tahap perancangan, pembuatan, dan pengujian alat. Hasil pengujian menunjukkan bahwa sistem mampu menampilkan pola kedipan lampu secara bergantian sesuai standar konfigurasi A dan B RGL. Alat ini diharapkan dapat menjadi sarana efektif dalam mendukung proses pembelajaran dan keselamatan penerbangan di lingkungan pendidikan.
Â
Kata kunci: Runway Guard Light, Mikrokontroler, Arduino Uno, Keselamatan Penerbangan.
Abstract:Abstract This study discusses the implementation of the Hazard Identification, Risk Assessment, and Mitigation (HIRM) system at the Electrical Workshop Laboratory of Politeknik Penerbangan Medan as part of efforts to create…
ate a safe practice environment and foster a culture of occupational safety from an early stage. The laboratory serves as a facility for students to perform practical electrical engineering activities such as soldering, panel assembly, electrical measurements, and handling heavy equipment—activities with inherently high safety risks. The research applies the HIRM approach through stages of hazard identification, risk assessment using a probability and severity matrix based on ICAO Doc 9859 standards, and the formulation of mitigation strategies. Results identified seven main activities with moderate to high-risk levels. The highest risks were found in electrical installation assembly, battery testing, and distribution panel work, which can cause electric shock or serious injuries. Recommended mitigation includes the use of personal protective equipment (PPE), regular safety training, strict implementation of standard operating procedures (SOPs), and increased instructor supervision. The study concludes that HIRM is effective for implementation in vocational education settings, particularly in electrical engineering fields, and recommends the future development of digital monitoring systems for real-time risk assessment and improved laboratory safety management..
Â
Keywords:Â Â HIRM, Occupational Safety, Workshop Laboratory, Risk Assessment,
                Hazard Mitigation
Abstrak: Penelitian ini membahas penerapan sistem Hazard Identification, Risk Assessment, and Mitigation (HIRM) di Laboratorium Workshop Kelistrikan Politeknik Penerbangan Medan sebagai bagian dari upaya menciptakan lingkungan praktik yang aman dan mendukung budaya keselamatan kerja sejak dini. Laboratorium ini digunakan oleh mahasiswa untuk kegiatan praktik kelistrikan seperti penyolderan, perakitan panel, pengujian alat ukur, dan pengangkatan peralatan berat yang memiliki potensi risiko tinggi. Penelitian dilakukan dengan pendekatan HIRM melalui tahapan identifikasi bahaya, penilaian risiko menggunakan matriks probabilitas dan keparahan berdasarkan standar ICAO Doc 9859, serta penyusunan langkah mitigasi. Hasilnya menunjukkan tujuh aktivitas utama dengan tingkat risiko sedang hingga tinggi. Risiko tertinggi terdapat pada perakitan instalasi listrik, pengujian baterai, dan pemasangan panel distribusi yang dapat menyebabkan sengatan listrik atau luka serius. Mitigasi yang disarankan mencakup penggunaan alat pelindung diri (APD), pelatihan keselamatan kerja, penerapan SOP, serta peningkatan pengawasan dosen. Studi ini menyimpulkan bahwa sistem HIRM efektif untuk diimplementasikan di lingkungan pendidikan vokasi teknik, khususnya pada bidang kelistrikan, dan ke depan perlu dikembangkan sistem monitoring digital berbasis teknologi informasi untuk penilaian risiko secara real-time.
Â
Â
Kata kunci: HIRM, Keselamatan Kerja, Laboratorium Workshop, Penilaian Risiko,
                  Mitigasi Bahaya
Abstract:Abstract: The EMR system in the Esa Unggul University Laboratory supports Health Information Management students but has access limitations. Users can only access the patient registration feature, while other features require…
quire a license, which hampers the learning process. The EMR UI design is a fundamental step in system development. The UI design method used in this study is User-Centered Design (UCD), producing 10 key features including registration, initial nursing assessment, examination, laboratory, radiology, pharmacy, cashier, coding, and reporting. Design evaluation, using Heuristic Evaluation (HE), involved 4 evaluators. The severity score of 1.3, categorized as a "Cosmetic Problem," indicates minor design issues that do not significantly affect users and therefore do not require immediate correction if time is limited.
Â
Keyword: User Interface, User Centered Deisgn, Electronic Medical Record Abstrak: RME yang ada pada Laboratorium Universitas Esa Ungul untuk mendukung pembelajaran mahasiswa Manajemen Informasi Kesehatan. memiliki keterbatasan akses, yaitu user hanya dapat membuka fitur pendaftaran pasien saja sehingga dalam mengakses fitur-fitur lainnya perlu adanya lisensi sehingga kegitan pembelajaran menjadi tidak optimal. Perancangan UI RME merupakan hal yang paling dasar dalam pengembangan suatu sistem. Metode perancangan UI yang digunakan pada penelitian ini adalah User Centered Design (UCD) dan menghasilkan 10 fitur desain UI RME diantaranya pendaftaran, asesmen awal keperawatan, pemeriksaan, laboratorium, radiologi, farmasi, kasir, kodefikasi, dan pelaporan. Evaluasi desain dilakukan menggunakan Heuristic Evaluation (HE) menggunakan kuesioner penilaian 10 prinsip antarmuka yang diberikan kepada 4 evaluator. Hasil evaluasi diperoleh nilai severity adalah 1.3 dengan kategori “Cosmetic Problem†menunjukkan desain yang dibuat terdapat masalah pada desain sistem namun tidak terlalu mempengaruhi pengguna sehingga perbaikan tidak terlalu dibutuhkan jika waktu yang dimiliki terbatas.
Kata Kunci: Antarmuka, User Centered Design, Rekam Medis Elektronik
Â
Abstract:Abstract: The selection of the Head of the Computer Laboratory is a process that requires multidimensional considerations, including technical competence, managerial skills, pedagogic skills, communication, as well as work…
rk ethics and discipline. Subjectivity or seniority-based selection approaches often do not produce optimal laboratory leaders. This study aims to design and develop SPK based on the integration of AHP and TOPSIS methods as a means to conduct a methodical and unbiased selection of candidates. The stages carried out include: identification of five main criteria based on expert interviews, weighting of criteria using AHP, collection of candidate assessment data, and final ranking using TOPSIS. The weighting results showed that the Technical criteria had the highest weight of 0.416, followed by Managerial (0.211) and Pedagogic (0.171). Of the ten candidates analyzed, Candidate I obtained the highest preference score of 0.659, indicating a high balance of scores on all three main criteria. Logical validation tests and sensitivity analysis to weight changes showed that the system remained stable, with the position of Candidate I remaining in the first rank despite the change in the weight of the technical criteria (from 0.3 to 0.5). These findings prove that SPK based on AHP-TOPSIS is able to reduce subjectivity and provide consistent and reliable recommendations in the selection process for the Head of Computer Laboratory.
Â
Keyword: DSS, TOPSIS, Laboratory, Technical-Managerial-Pedagogic, AHP
Â
Abstrak: Pemilihan Kepala Laboratorium Komputer merupakan proses yang membutuhkan pertimbangan multidimensi, meliputi kompetensi teknis, kemampuan manajerial, keterampilan pedagogik, komunikasi, serta etika dan disiplin kerja. Pendekatan seleksi berbasis subjektivitas atau senioritas sering kali tidak menghasilkan pemimpin laboratorium yang optimal. Studi ini bertujuan merancang dan mengembangkan SPK berbasis integrasi metode AHP dan TOPSIS sebagai sarana untuk melakukan seleksi kandidat secara metodis dan tidak bias. Tahapan yang dilakukan meliputi: identifikasi lima kriteria utama berdasarkan wawancara pakar, pembobotan kriteria menggunakan AHP, pengumpulan data penilaian kandidat, dan perankingan akhir menggunakan TOPSIS. Hasil pembobotan menunjukkan bahwa kriteria Teknis memiliki bobot tertinggi sebesar 0,416, diikuti Manajerial (0,211) dan Pedagogik (0,171). Dari sepuluh kandidat yang dianalisis, Kandidat I memperoleh skor preferensi tertinggi sebesar 0,659, menunjukkan keseimbangan nilai tinggi pada ketiga kriteria utama. Uji validasi logis dan analisis sensitivitas terhadap perubahan bobot menunjukkan bahwa sistem tetap stabil, dengan posisi Kandidat I tetap pada peringkat pertama meskipun bobot teknis berubah sifnifikan (dari 0,3 hingga 0,5), hal ini menunjukan metode yang digunakan konsisten dan handal. Temuan ini menunjukan bahwa SPK berbasis AHP-TOPSIS mampu mengurangi subjektivitas dan memberikan rekomendasi yang konsisten serta dapat diandalkan dalam proses seleksi Kepala Laboratorium Komputer.
Â
Kata Kunci: SPK, TOPSIS, Laboratorium, Teknis-Manajerial-Pedagogik, AHP
Abstract:Abstract: This research is titled "Application of Laboratory Equipment Recognition in Pharmacognosy at SMK Kesehatan Sidimpuan Husada Using Augmented Reality," where the research problem lies in the fact that practical work…
ork is conducted with a large number of students and time constraints, resulting in a lack of success in maintaining sterilization in the laboratory. The introduction of laboratory equipment is also limited due to being done manually and requiring a considerable amount of time. To address this issue, a solution is proposed by developing an augmented reality-based Android application for introducing pharmacognosy laboratory equipment. The method employed is qualitative. The research yields an innovative application that successfully enhances understanding of the introduction to pharmacognosy laboratory equipment
Â
Keywords: application, introductory media, pharmacognosy laboratory equipment,
              augmented reality (ar), android
Abstrak: Penelitian ini berjudul Aplikasi Pengenalan Alat Laboratorium Farmakognosi Di SMK Kesehatan Sidimpuan Husada Menggunakan Augmented Reality yang dimana permasalahan penelitiain ini adalah praktikum dilakukan dengan jumlah siswa yang besar dan batasan waktu, mengakibatkan kurangnya keberhasilan menjaga sterilisasi di laboratorium. pengenalan alat laboratorium juga terbatas karena dilakukan secara manual dan membutuhkan waktu yang cukup lama. Untuk mengatasi masalah ini adalah dengan mengembangkan sebuah aplikasi media pengenalan alat laboratorium farmakognosidi menggunakan augmented reality berbasis android. Metode yang digunakan yaitu metode kualitatif. Yang menjadi hasil penelitian ini adalah sebuah aplikasi inovatif yang berhasil meningkatkan pemahaman pengenalan alat laboratorium farmakognosidi.
Â
Kata kunci:aplikasi, media pengenalan, alat laboratorium farmakognosidi, Â augmented reality (ar), android
Abstract:Indonesia is one of the highest palm oil producers in the world. Palm oil is one of the well-known natural resources in the world today because it has high economic value, such as being able to produce palm oil, fuel and…
others. In Indonesia, one of the largest palm oil producers is the province of Riau, according to the Central Statistics Agency (BPS) noted that Riau will be the largest palm oil producing region in Indonesia in 2021 with as many as 8,629 thousand tons. The quality of CPO is one of the main factors for customers to make purchasing decisions, especially the standards contained in the Indonesian National Standard (SNI) 01-2901-2006. The final quality of this palm oil product is determined by the combined results of CPO quality and kernel quality. Good quality raw materials will affect the selling price of raw materials for a good quality final product. Selection of the quality of palm oil products still uses old methods such as laboratory testing to check water content, free fatty acid levels, and others in the manufacture of CPO, which takes several days to get the results. The purpose of this study is to classify the quality of palm oil products with a method. Having an application/web can help the laboratory produce good CPO. The method used in this study is the Naive Bayes method to obtain data quickly and accurately. The accuracy of the Naive Bayes method in determining the quality of palm oil products is 82.05%.
Keywords: qualification, quality, palm oil, naïve bayes
Indonesia merupakan salah satu penghasil minyak kelapa sawit tertinggi di dunia. Kelapa sawit adalah salah satu sumber daya alam yang terkenal saat ini didunia karena memiliki nilai ekonomis yang tinggi seperti dapat menghasilkan minyak sawit, bahan bakar dan lainnya. Di indonesia salah satu penghasil kelapa sawit terbesar adalah provinsi Riau, menurut Badan Pusat Statistik (BPS) mencatat Riau menjadi daerah penghasil kelapa sawit terbesar Di Indonesia pada tahun 2021 sebanyak 8.629 ribu ton. Kualitas CPO adalah salah satu faktor utama bagi pelanggan untuk membuat keputusan pembelian khususnya standar yang terdapat pada Standar Nasional Indonesia (SNI) 01-2901-2006. Kualitas akhir dari produk kelapa sawit ini ditentukan dari gabungan hasil kualitas CPO dan kualitas kernel. Bahan mentah yang berkualitas baik akan mempengaruhi harga jual bahan mentah untuk kualitas akhir produk yang baik. Pemilihan kualitas produk kelapa sawitnya masih memakai cara yang lama seperti pengujian laboratorium untuk pengecekan kadar air, kadar asam lemak bebas, dan lainnya dalam pembuatan CPO, yang membutuhkan beberapa hari untuk mendapatkan hasilnya. Tujuan dari penelitian ini adalah mengklasifikasikan kualitas produk kelapa sawit dengan sebuah metode. Dengan adanya aplikasi/web dapat membantu pihak laboratorium dalam menghasilkan CPO yang baik. Metode yang digunakan dalam penelitian ini adalah metode Naive Bayes untuk memperoleh data dengan cepat dan akurat.Tingkat akurasi metode Naive Bayes dalam menentukan kualitas produk kelapa sawit adalah sebesar 82,05%.
Kata Kunci: klasifikasi, kualitas, kelapa sawit, naïve bayes
Abstract:Iron deficiency anemia remains a nutritional problem among adolescent girls, making the development of acceptable local food products rich in iron important. This study aimed to evaluate the effect of Moringa oleifera leaf…
af flour substitution on the organoleptic characteristics, iron content, and proximate composition of dange cake and to determine the best formulation. An experimental study using a Completely Randomized Design (CRD) was conducted with four formulations: F1 (0 g), F2 (12 g), F3 (25 g), and F4 (37 g) Moringa leaf flour. Organoleptic testing used a 1–5 hedonic scale involving 30 untrained adolescent-girl panelists. Data were analyzed using the Kruskal–Wallis test because the organoleptic data were not normally distributed. The results showed no significant differences in color (p=0.543), aroma (p=0.067), or texture (p=0.085), whereas taste differed significantly (p<0.001). F2 had the highest mean rank for color (67.10), aroma (70.73), taste (82.27), and texture (68.70), and was therefore selected as the best formulation. Laboratory analysis of F2 showed protein 5.16%, fat 4.04%, carbohydrate 63.35%, moisture 23.75%, ash 1.70%, crude fiber 4.65%, and iron 17.10 mg/g as reported in the research results. The findings indicate that dange cake with 12 g Moringa leaf flour substitution has good sensory acceptance and potential to be developed as an iron-rich snack to support anemia prevention among adolescent girls.
Abstract:This study aims to analyze the effect of workload on employee performance, work stress on employee performance, workload on burnout, work stress on burnout, burnout on employee performance, workload on performance with burnout…
urnout as a variable, work stress on employee performance by burnout as a mediating variable in Health Laboratory employees in Denpasar City. Using a quantitative approach. Questionnaires that have been tested for validity and reliability are then analyzed using descriptive analysis and inferential analysis with Structural Equation Model-Partial Least Square analysis and produce results. workload has a negative and insignificant effect on employee performance. Work stress has a negative and significant effect on employee performance. Workload has a positive and significant effect on burnout. Job stress has a positive and significant effect on burnout. Burnout has a negative and significant effect on employee performance. Burnout plays a full role capable of mediating the effect of workload on employee performance. This means that burnout is able to perfectly mediate the relationship between workload and employee performance. Burnout plays a role in mediating the effect of work stress on employee performance at the Health Laboratory in Denpasar City.
Abstract:This study aims to evaluate the stability of three rock slopes in an artisanal kaolin mine in Semin, Gunungkidul, Yogyakarta, Indonesia, using deterministic and probabilistic approaches, and to identify the geotechnical…
parameters most influencing slope stability. The evaluation is conducted in compliance with Indonesian Mining Regulation (Kepmen ESDM No. 1827 K/30/MEM/2018) to provide quantitative geotechnical evidence for a mine that has been operated without prior formal geotechnical assessment. Field data were collected using the scanline method to characterize rock mass discontinuities. Laboratory tests comprising direct shear and physical properties tests were conducted to determine cohesion (c), friction angle (ϕ), and unit weight (γ) for each slope. Seismic coefficient (ks = 0,0913) was incorporated as a dynamic loading parameter. Slope stability was analyzed using the General Limit Equilibrium (GLE) method to obtain the deterministic Factor of Safety (FoS). Monte Carlo simulation (N = 10.000 iterations) was applied to determine the Probability of Failure (PoF), coefficient of variation of FoS (CoV), and reliability index (β). Sensitivity analysis was performed to quantify the contribution of each geotechnical parameter to FoS reduction. Results show that FoS values ranged from 2,019 (Slope III) to 10,55 (Slope II), all exceeding the regulatory minimum of 1,1. The PoF was 0,00% for all three slopes, well below the maximum allowable limit of 25%, with reliability indices ranging from 5,70 to 31,38. The CoV of FoS ranged from 3% to 9%, indicating low dispersion in stability outcomes despite parameter variability. Sensitivity analysis identified cohesion as the most dominant parameter in Slopes I and II, contributing 28% and 31% to FoS reduction respectively, while Slope III exhibited near-equal contributions from cohesion (20%) and friction angle (21%), reflecting its lower shear strength conditions. All three slopes satisfy the acceptance criteria of Kepmen ESDM No. 1827 K/30/MEM/2018 under current geotechnical and geometric conditions. The combined deterministic-probabilistic approach provides a more comprehensive slope safety assessment than deterministic analysis alone and is recommended for application in artisanal kaolin mining operations. Cohesion is identified as the critical parameter to be monitored and preserved to maintain slope stability.