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FAKULTAS TEKNIK DAN KOMPUTER UNIVERSITAS PUTERA BATAM (Sistem Informasi, Teknik Informatika & Teknik Industri) Jl. R. Soeprapto – Tembesi – Batam – Kepulauan Riau
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Computer & Science Industrial Engineering Journal
Published by Universitas Putera Batam
ISSN : -     EISSN : 27156265     DOI : -
Core Subject : Science,
Computer Science & IT
Journal Comasie is a journal that combines 3 science namely informatics engineering, information systems and industrial engineering. The theme and scope can be seen in the scope section. This journal was created as a means of publicizing the results of research conducted by lecturers and students. This journal is published 3 times a year or every 4 months in a year. The main purpose of this journal is to facilitate students who want to publish their scientific work so that it will increase the profusion of knowledge. We on behalf of all the managers express gratitude for all efforts and support in the publication of this journal and our great hope that this journal can be a reference for the community in improving technology and to advance Indonesia (Amrizal, Andi, Welly, Rashid)
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 16 Documents
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Search results for , issue "Vol 12 No 3 (2025): Comasie Vol 12 No 3" : 16 Documents clear
DESAIN DAN IMPLEMENTASI SISTEM PENGENDALIAN GORDEN OTOMATIS BERBASIS ARDUINO MENGGUNAKAN SENSOR LIGHT DEPENDENT RESISTOR Siregar, Kristina Yanti; Pangaribuan, Hotma
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9742

Abstract

This research focuses on the design and implementation of an automatic curtain control system using an Arduino microcontroller and an LDR (Light Dependent Resistor) sensor. The system aims to optimize energy efficiency in residential buildings by automatically adjusting curtain openings based on ambient light intensity. The LDR sensor detects light levels, and the Arduino processes this data to control a DC motor that opens or closes the curtains. The system was prototyped using readily available components, including an Arduino Uno, LDR sensor, DC motor, and a wooden frame for housing the components. Testing demonstrated the system's effectiveness in responding to light changes, with the LDR sensor exhibiting an average response time of 2-3 seconds, and the DC motor accurately controlling the curtains with an average response time of 1 second. This automated solution has the potential to reduce reliance on artificial lighting, thereby contributing to energy conservation in homes.
ANALISIS PEMILIHAN SUPPLIER TOU DI PT FLEXTRONICS TECHNOLOGY INDONESIA Ria Esnidar Nainggolan; Ganda Sirait
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9768

Abstract

The manufacturing industry's growing competition demands efficient supply chain management to maintain a competitive edge. An integrated supply chain reduces costs, removes barriers, and ensures fast, accurate product distribution. Supplier relationships and adherence to Supplier Terms of Use (TOU) are crucial for optimization.This study focuses on supplier selection for PT Flextronics Technology Indonesia, a Batam-based semiconductor manufacturer established in 1991. As a key player in the global semiconductor supply chain, the company supports industries like electronics and industrial equipment.Using the Analytical Hierarchy Process (AHP), the research prioritizes supplier selection criteria: Accuracy, Delivery Accuracy, Flexibility, Cost, and Responsibility. AHP results show Oshiba Technology Sdn Bhd as the top supplier with a 28% priority score, followed by Flextronics International Ireland Ltd at 21%. Meanwhile, TOPSIS evaluates supplier performance, identifying Flextronics International Ireland Ltd as the closest to the ideal solution (0.651).The findings highlight that while Oshiba ranks highest in strategic priority, Flextronics International Ireland Ltd excels in operational performance, reflecting alignment between qualitative and quantitative assessments.
SISTEM PAKAR MENDIAGNOSA PENYAKIT PADA BURUNG LOVEBIRD DENGAN METODE FORWARD CHAINING BERBASIS WEB Manurung, Efran Louis; Pangaribuan, Hotma
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9782

Abstract

The disease known as avian pox poses a serious threat to Lovebirds and can lead to their death. In some regions, this illness is referred to as "patek." The primary cause of this disease is a virus that, upon infecting a Lovebird, triggers excessive growth in the outer skin layer. This growth results in new tissue that quickly dies, forming warts. If left untreated, these warts can enlarge. The avian pox virus can be transmitted in various ways, including bites from infected mosquitoes, flies, contact with sick birds, and even through contaminated food or water. As a result of this infection, Lovebirds may experience respiratory difficulties and struggle to eat, ultimately leading to death. Therefore, it is crucial to develop a system that can assist Lovebird enthusiasts in preventing and addressing this disease. One potential solution is an expert system that can enhance the ability to diagnose symptoms like a professional.
ANALISIS KESEHATAN DAN KESELAMATAN KERJA DI PABRIK TAHU PAK SUSILO DI KOTA BATAM Mahendrawan Maulana, Firgi; Zetli, Sri
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9786

Abstract

Pak Susilo Tofu Factory is one of the tofu factories engaged in the UMKM food industry. Tofu processing at Pak Susilo's factory still uses traditional tools and methods with minimal use of electrical energy. The problem that occurred in this study was the lack of knowledge and application of K3 in Pak Susilo's UMKM tofu. There were cases of health disorders and work accidents that occurred in the process of producing tofu so that efforts were needed to identify the risk of hazards and assess the risks. The purpose of this study was to improve occupational health and safety by identifying and assessing the level of risk of health disorders and work accidents and to provide appropriate control measures in the Pak Susilo tofu production process. The method used in this study was HIRA (Hazard Identification and Risk Assessment) to identify and assess the level of risk of hazards for workers at the Pak Susilo tofu factory. From the results of this study, 12 production processes of Mr. Susilo's tofu obtained jobs with a risk level of Extreme Risk (17%) as many as 2 jobs, High Risk (41%) as many as 5 jobs, Moderate Risk (17%) as many as 2 jobs and Low Risk (25%) as many as 3 jobs. The proposal given by 3 K3 experts for risk control to the owner of UMKM tofu Mr. Susilo is through eliminating sources of danger from the workplace, replacing safer tools, risk control measures with tool engineering to reduce potential hazards, reducing the risk of hazards in the workplace by changing policies and equipment that must be used to maintain occupational health and safety, namely PPE.
PERANCANGAN FASILITAS KERJA YANG ERGONOMIS PADA AKTIVITAS PENGEMASAN KERUPUK DI UKM KERUPUK LATANSA Endrian, Bayu; Zetli, Sri
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9788

Abstract

Small and Medium Enterprises (SMEs) in Indonesia continue to experience rapid growth, including Kerupuk Latansa SME in Batam City. However, the packaging activities at this SME are still performed using non-ergonomic work facilities, causing physical complaints among workers. This study aims to identify the level of Musculoskeletal Disorders (MSDs) experienced by workers and to design ergonomic work facilities to improve posture and enhance work comfort. The methods used in this research include posture analysis using RULA (Rapid Upper Limb Assessment) and identification of physical complaints through the Nordic Body Map (NBM) questionnaire. Workers' anthropometric data were used as the basis for designing the work facilities. The results of the study revealed that the most common MSD complaints occurred in the neck, shoulders, back, upper arms, waist, knees, and calves, with a high-risk category. The total percentage of MSD complaints was 64% for Worker 1, 43% for Worker 2, 63% for Worker 3, and 64% for Worker 4. As a solution, an ergonomic worktable was designed with specifications of 90.6 cm in height, 250 cm in length, a partition height of 20 cm, and a table tilt angle of 100°, adjusted according to workers' anthropometric data.
PERBAIKAN KUALITAS MOLD PROSES INJECTION MOLDING PADA PT GIKEN PRECISION INDONESIA Andika Nurhadi, Dwimas; Anggia Arista
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9790

Abstract

PT Giken Precision Indonesia is a manufacturing company specializing in plastic molding products, located in Batam and established in 1991. Based on field observations, frequent mold damage in injection molding machines has resulted in defects in the wing eater product. This issue occurs due to the loosening of mold pins within the upper and lower plates of the mold. The total defective products for wing eater in one year reached 6.73%, exceeding the company’s tolerance limit of 5% annually. This study aims to improve the quality of injection molding molds in the wing eater production process and determine the appropriate mold design to enhance the injection molding process quality. The methods used in this study are Design for Manufacturing and Assembly (DFMA) and Defects Per Million Opportunities (DPMO). The results show that after designing an ejector set with upper plate and lower plate dimensions of 500 mm in length and 338 mm in width, the ejector pins were redesigned with two dimensional variations: a base diameter of 5 mm and a tip diameter of 4 mm. The percentage of defective products significantly decreased from 7.19% in January 2023 to 2.06% in February 2024. The Sigma level improved from 3.82 (10,170 DPMO) to 4.25 (2,980 DPMO), indicating a 70.7% reduction in defects. Thus, the mold quality can be improved.
ANALISIS KLASIFIKASI EMAIL SPAM MENGGUNAKAN ALGORITMA NAÏVE BAYES Rahman, Azan; Maslan, Andi
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9792

Abstract

Spam emails pose a significant challenge in digital communication, requiring effective classification methods to enhance cybersecurity. This study evaluates the performance of the Naïve Bayes algorithm in detecting spam emails, focusing on accuracy, precision, and recall. The dataset consists of pre-labeled emails processed using TF-IDF for feature extraction. The results indicate that the algorithm achieved an accuracy of 90% before addressing class imbalance. After applying SMOTE, the final accuracy improved to 98%. These findings demonstrate that Naïve Bayes is an effective method for spam email classification, with SMOTE enhancing its performance in handling class imbalance.
ANALISIS BEBAN KERJA FISIK DALAM PENENTUAN WAKTU ISTIRAHAT PADA KARYAWAN WELDER PADA PT MCDERMOT INDONESIA Dominggus Awola, Fernando; Zetli, Sri
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9798

Abstract

This study aims to analyze the physical workload and determine the optimal rest time for welders at PT McDermott Indonesia using a physiological approach. Workload was measured through the Cardiovascular Load (CVL) method and energy consumption based on heart rates during work. The results showed that %CVL ranged from 30%–59%, categorized as "needs improvement." Most workers had energy consumption <5 Kcal/min, but three workers exceeded this threshold: two morning shift level-2 welders (Putra 5.07 Kcal/min; Hotmianto 5.05 Kcal/min) and one night shift level-4 welder (Deo 5.25 Kcal/min). These workers required additional rest times of 11.8 minutes, 8.5 minutes, and 38.7 minutes, respectively. Meanwhile, the standard 30-minute rest period was sufficient for others.
ANALISIS PRODUCTIVE MAINTENANCE PADA MESIN WELDING POLARIS DI PT EXCELITAS Firmansyah, Ikhsan; Sirait, Ganda
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9800

Abstract

This study aims to analyze the performance of the Polaris Welding machine at PT Excelitas using the Mean Time Between Failure (MTBF), Mean Time To Repair (MTTR), and Overall Availability methods. The Polaris Welding machine often experiences downtime, so that productivity is disrupted. The results of the study showed an average MTBF value of 3.24 hours, MTTR of 0.55 hours, and overall availability of 84.66%, which is still below the global standard (≥ 90%). The main causal factors are lack of operator training, unscheduled machine maintenance, and material mismatch. To improve machine performance, planned maintenance standards and autonomous maintenance are recommended. This approach is expected to minimize downtime and increase the effectiveness of the production process at PT Excelitas.
RANCANG BANGUN ALAT AUTO FEEDER HEWAN PELIHARAN BERBASIS ARDUINO Eko, Eko Giri Pratama; Hotma Pangaribuan
Computer Science and Industrial Engineering Vol 12 No 3 (2025): Comasie Vol 12 No 3
Publisher : LPPM Universitas Putera Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33884/comasiejournal.v12i3.9801

Abstract

Ensuring proper and regular feeding is an important aspect of maintaining the health and well-being of pets. However, pet owners sometimes face challenges in consistently providing food to their pets, especially when they are busy with work or other activities. To address this issue, an automated feeding system can be an effective solution. This abstract highlights the implementation of an automated pet feeding system using Arduino Uno, a popular open-source microcontroller board. The system is designed to dispense the appropriate amount of food at scheduled times, ensuring that pets receive their meals on time. The Arduino Uno acts as the brain of the system, controlling various components such as a motorized food dispenser, a digital display for programming and monitoring, and sensors for detecting the presence of pets and food levels. By utilizing a programmable microcontroller, the system can be easily customized to accommodate specific feeding requirements and pet schedules. Overall, the automated pet feeding system using Arduino Uno offers a practical and reliable solution for pet owners who struggle to maintain consistent feeding routines. By utilizing technology such as Arduino Uno, pet owners can ensure that their pets receive proper nutrition, even in their absence.

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