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All Journal Tekinfo | Scientific Journal of Industrial and Information Engineering SIGMA TEKNIKA Jurnal Logistica
Rumapea, Elsa Sri Erjuni
Unknown Affiliation
Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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SMART CLOTHESLINE: ARDUINO-CONTROLLED DRYING SYSTEM WITH LIGHT AND RAIN DETECTION Hasbi, Putranugra; Ryan, Agung; Rumapea, Elsa Sri Erjuni; Pane, Amirah Nova Khairiyah; Maulidina, Siti Nur
JURNAL LOGISTICA Vol. 3 No. 2 (2025): VOL.3.NO.2. JUNI 2025
Publisher : LPPM-ITEBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62375/logistics.v3i2.597

Abstract

Unpredictable weather changes often complicate the process of drying clothes, especially when sudden rainfall occurs. To address this issue, an automatic clothes drying system was designed based on the Arduino Uno microcontroller, utilizing a Light Dependent Resistor (LDR) sensor and a rain sensor. The LDR sensor detects sunlight intensity, while the rain sensor identifies the presence of rain. When sufficient sunlight is detected and no rain is present, the system activates a DC motor to automatically extend the clothesline. Conversely, if rain is detected or sunlight intensity decreases, the DC motor retracts the clothesline into a sheltered area. The objectives of this research are to (1) Protect clothes from getting wet due to sudden rainfall; (2) Optimize the drying process by utilizing sunlight intensity; (3) Reduce manual intervention in the drying process, providing convenience for users who are frequently away from home. System testing demonstrated that the device effectively responds to weather changes, thereby protecting clothes from rain and maximizing drying during sunny conditions. This system offers a practical solution for users concerned about the state of their laundry when they are not at home.
Perancangan Sistem Informasi Kerja Praktek dan Tugas Akhir Berbasis Website Pada Program Studi Teknik Industri ITEBA Menggunakan Pendekatan Data Flow Diagram (DFD) Pane, Amirah Nova Khairiyah; rumapea, Elsa Sri Erjuni; Azzahra, Fadhilla; Anugrah, Ibnu; Maulidina, Siti Nur; Gucci, Dinda Okta Dwi Yanti Ridwan; Pertiwi, Elsa Putri
SIGMA TEKNIKA Vol 8, No 2 (2025): SIGMATEKNIKA, VOL. 8, N0. 2, NOVEMBER 2025
Publisher : Fakultas Teknik, Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/sigmateknika.v8i2.8423

Abstract

The administrative process of Kerja Praktek (KP) and Tugas Akhir (TA) in the Industrial Engineering Department ITEBA is still conducted manually, which often causes problems in registration, data recording, student progress monitoring, and communication between students, supervisors, and coordinators. This study aims to design a web-based information system to support more efficient, transparent, and structured KP and TA management. The method used is system modeling with the DFD approach and implemented with Glide App. The results produced an information system with key features such as online registration, document upload, progress monitoring, dashboards for students, supervisors, and coordinators, document archiving. Functionality testing showed that all features operated as required, while user satisfaction surveys indicated that 85% students, 90% supervisors, and 80% coordinators felt that the system improved convenience, efficiency, and transparency in KP and TA process. These findings indicate that the system successfully addresses manual administration issues and serves as a foundation for the future development of broader digital academic system.
Comparative Analysis of Transportation Methods in The Distribution of Frozen Chicken Products Pane, Amirah Nova Khairiyah; Rumapea, Elsa Sri Erjuni; Pertiwi, Elsa Putri; Salzabillah, Dinda Azzahara; Banik, Nia Gracia; Ramuna, Devi
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 14 No 2 (2026)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v14i2.2823

Abstract

Distribution is a critical component of logistics systems, especially in the food industry where perishable products such as frozen chicken require strict temperature control and timely delivery. CV XYZ, a frozen chicken distributor in Batam, encounters several operational challenges, including high transportation costs, limited cold chain infrastructure, and inefficient allocation of distribution routes. These issues not only increase operational expenses but also pose risks to product quality and delivery reliability. Therefore, an effective distribution strategy is required to ensure cost efficiency and service performance. This study aims to identify the most efficient transportation method to minimize distribution costs by applying three initial solution approaches: North West Corner Rule (NWCR), Least Cost (LC), and Vogel’s Approximation Method (VAM). The solutions obtained from each method were further evaluated using the Stepping Stone method to test their optimality. This research adopts a quantitative approach using a mathematical transportation model, with data collected through interviews and direct field observations. The results show that the VAM method produces the lowest initial distribution cost of Rp57,062,000, compared to Rp60,022,000 for the LC method and Rp63,916,000 for the NWCR method. After optimality testing, only the VAM solution remained unchanged, indicating that it had already reached optimality. Thus, VAM is recommended as the most effective method for optimizing frozen chicken distribution costs at CV XYZ Batam.
Co-Authors Anugrah, Ibnu Azzahra, Fadhilla Banik, Nia Gracia Gucci, Dinda Okta Dwi Yanti Ridwan Hasbi, Putranugra Ihsan, Abid Maulidina, Siti Nur Pane, Amirah Nova Khairiyah Pertiwi, Elsa Putri Prayogo, Wahyu Raffi, Ahmad Ramuna, Devi Rechan, Rechan Ryan, Agung Salzabillah, Dinda Azzahara Sofyan Sauri, Sofyan