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Jurnal Penelitian Teknologi Informasi dan Sains
Published by INSTITUT TEKNOLOGI DAN BISNIS SEMARANG
ISSN : 29856280     EISSN : 29857635     DOI : 10.54066
Core Subject : Science,
Computer Science & IT
Ruang lingkup meliputi bidang Informatika, Teknik Mesin, Teknik Elektro,Teknik Sipil, Teknik Industri, Ilmu Komputer dan Sains.
Arjuna Subject : Ilmu Ekonomi, Ekonometrika dan Keuangan (semua kategori) - Ilmu Ekonomi, Ekonometrika dan Keuangan (Lain-Lain)
Articles 164 Documents
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Pengaruh Variasi Air Fuel Ratio (AFR) dan Sudut Pengapian pada ECU Standar dan ECU Aftermarket terhadap Daya dan Torsi Sepeda Motor Honda Vario 125 LED Muhammad Najbanuhal Khakim; Hadromi Hadromi; Rizqi Fitri Naryanto
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4756

Abstract

This study aims to analyze the effect of variations in the Air Fuel Ratio (AFR) and Ignition Angle on the Standard ECU and Aftermarket ECU on the Power and Torque of the Honda Vario 125 LED Motorcycle. An experimental method was employed using a factorial design involving three factors: ECU type (standard and aftermarket), AFR variations (12.5, 13.5, and 14.7), and ignition timing variations (standard, +2°, and +4°). Testing was conducted using a chassis dynamometer to obtain engine power and torque data for each treatment combination. The experimental data were processed descriptively using Microsoft Excel through the calculation of mean values, comparison of results, and percentage changes in performance for each treatment variation. The results showed that the aftermarket ECU produced higher engine performance than the standard ECU, with average increases of 3.09% in power and 2.65% in torque. The maximum power of 13.70 HP was obtained from the combination of the aftermarket ECU, AFR 12.5, and +4° ignition timing, while the highest average torque of 11.90 Nm was obtained from the aftermarket ECU with an AFR of 13.5. These results indicate that variations in AFR and ignition timing affect engine performance characteristics; therefore, the use of an aftermarket ECU should be accompanied by appropriate AFR and ignition timing adjustments to achieve optimal engine performance.
Pengaruh Variasi Air Fuel Ratio dan Sudut Pengapian Menggunakan ECU Standar dan Aftermarket terhadap Emisi Gas Buang Motor Bensin 125 LED Ananda Bimo Satrio; Hadromi Hadromi; Rizqi Fitri Naryanto
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4757

Abstract

The increasing use of gasoline-powered motorcycles contributes to higher exhaust emissions that negatively affect air quality. One approach to reducing exhaust emissions is optimizing combustion parameters through the adjustment of the Electronic Control Unit (ECU), Air Fuel Ratio (AFR), and ignition timing. This study aimed to analyze the effect of standard and aftermarket ECUs with different AFR and ignition timing settings on the exhaust emissions of a gasoline motocycle 125 LED motorcycle. An experimental method with a factorial design was employed using two ECU types, three AFR levels (12.5, 13.5, and 14.7), and three ignition timing settings (standard, +2°, and +4°). Exhaust emissions were measured using a gas analyzer to determine carbon monoxide (CO) and hydrocarbon (HC) concentrations. The collected data were analyzed using descriptive statistics followed by a Three-Way Analysis of Variance (ANOVA). The results indicated that ECU type, AFR, and ignition timing significantly influenced CO and HC emissions. Appropriate adjustment of combustion parameters improved combustion efficiency, resulting in lower exhaust emissions. The combination of an aftermarket ECU with optimum AFR and ignition timing produced lower emissions than the standard ECU.
Perancangan Aplikasi Berbasis Website Penyewaan Stadion H. Abdul Malik dengan Penerapan Metode Scrum Filqa Talitha Nufaillah Pambudi; Hadi Wijaya; Febria Anjara
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4777

Abstract

The focus of this research is to design a website-based rental application to address these inefficiencies and improve reservation certainty through an integrated system. The research methodology employed is Agile Scrum, executed iteratively through five sprint stages. The problem-solving steps include the preparation of the product backlog, sprint planning, system development using PHP programming language and database, and sprint reviews. To test the design's success, this study will utilize Black Box Testing for system functionality and distribute questionnaires using the System Usability Scale (SUS) method to measure the level of satisfaction and ease of use for both users and administrators. The results of the design and testing show that the automated scheduling feature and integrated payment system were successfully implemented to minimize the recording errors that previously occurred in the manual process. The implementation of this website has been shown to improve data recording consistency and scheduling certainty for field reservations compared to the previous manual system. The final result of this research shows that the developed application is an effective, user-friendly, and feasible digital solution for optimizing rental management at H. Abdul Malik Stadium, thereby increasing revenue and customer convenience. The test results yielded an average score of 91.25, placing it in the "acceptable" category, earning a grade of A, and corresponding to the "best imaginable" adjective rating. Black-box testing covering 62 scenarios across five sprints was successfully executed with a 100% success rate.
Smart Water Tank IoT dengan Multi-Sensor untuk Optimalisasi Kualitas dan Efisiensi Air: Studi Kasus Pondok Pesantren Al Hikmah Anthony Hermansya Putra; Nuris Dwi Setiawan; Iman Saufik Suasana
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4785

Abstract

Monitoring and management of water conditions in reservoirs is still done manually, meaning that information regarding water levels and quality cannot be obtained quickly and in real time.. This problem occurred at the Al-Hikmah Pedurungan Islamic Boarding School, Semarang, where the management experienced obstacles in meeting the quality and availability of water in the tank located on the fourth floor of the building. This study aims to design and implement an Internet of Things (IoT)-based Smart Water Tank system with Multi-Sensor integration to optimize the quality and efficiency of air use. The research method used is Research and Development (R&D) with a prototype model. The system was developed using an ESP32 microcontroller, an HC-SR04 sensor to measure air level, a turbidity sensor to detect air turbidity levels, a relay module, and a water pump integrated with the Telegram application as a monitoring, notification, and remote control medium. The implementation results show that the system is able to monitor air conditions in real-time, classify the status of air level and turbidity, and allow users to control the pump via Telegram. Thus, the developed system can assist the management of the Al-Hikmah Islamic Boarding School in monitoring and making decisions related to water management more effectively and efficiently.
Peningkatan Produktivitas Proses Mixing Mie Instan PT XYZ melalui Efisiensi Material Handling dengan Pendekatan Root Cause Analysis (RCA) dan Work Measurement Harry Praditia; Rakay Edhiargo Toyosito; Mochamad Eko Nugroho
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4790

Abstract

This study aims to improve the productivity of the mixing process at PT XYZ by optimizing the efficiency of the material handling system. Based on production data from October 2025 to March 2026, the average utilization of the mixing machine reached 91.87%, exceeding the company's KPI target of 90% but still leaving an 8.13% gap toward the 100% design capacity. The analysis of downtime data revealed that idling minor stop caused by delays in material supply was the largest contributor, accounting for 60% (180 hours) of the total 300 hours of downtime. To identify the root cause, this study applied a Root Cause Analysis (RCA) approach using a fishbone diagram and the 5 Whys method, while Work Measurement was conducted using the stopwatch time study technique to establish the standard time for material handling activities. The findings indicate that inefficiency was caused by four main factors: the absence of standard work time, non-standardized work methods, poor coordination between operators, and the long distance between the warehouse and the mixing machine. The recommended improvements include implementing a material handling SOP, applying a scheduled material staging system, and using standard time as a reference for operators. The simulation shows that these proposals can reduce waiting time by 90 hours and increase machine utilization to 94.37%. Therefore, productivity improvement can be achieved without investment in new machinery.
Rancang Bangun Sistem Absensi Guru Otomatis menggunakan e-KTP Berbasis RFID dan NodeMCU ESP8266 pada SMAN 1 Lasusua Ammase S; Nurjaya Nurjaya; Satriani Safitri
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 1 (2026): : JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i1.4818

Abstract

This study aims to develop an automatic teacher attendance system using electronic identity cards (e-KTP) based on Radio Frequency Identification (RFID) and NodeMCU ESP8266 at SMAN 1 Lasusua. The system was developed as a solution to improve the efficiency of the attendance process, which was previously conducted manually and had several limitations, including longer processing times, potential recording errors, and difficulties in managing and recapitulating attendance data. The research employed the Research and Development (R&D) method using the ADDIE development model, consisting of five stages: Analysis, Design, Development, Implementation, and Evaluation. System testing was conducted using Black Box Testing, attendance processing speed testing, WiFi connectivity testing, LCD and Buzzer functionality testing, and the System Usability Scale (SUS). The test results showed an overall success rate of 95.93%, indicating that the processes of identification, data processing, transmission, and storage functioned according to the designed specifications. The average attendance processing time was 3.93 seconds, which was faster than the manual method. Furthermore, the system obtained a SUS score of 83.3, indicating that it is feasible to use. Therefore, the developed system can improve the efficiency, speed, accuracy, and ease of managing teacher attendance data automatically.
Integrasi Metode Six Sigma, Root Cause Analysis (RCA) dan Statistical Process Control (SPC) dalam Meminimalisir Jumlah Reject Packing PT XYZ Mochamad Eko Nugroho; Awan Irawan; Abby Yazid Bustommy
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4820

Abstract

Industri makanan merupakan salah satu sektor yang berkontribusi besar terhadap Produk Domestik Bruto (PDB) Indonesia, dan PT XYZ menjadi salah satu pabrik terbesar yang memproduksi produk makanan dan minuman dalam grupnya. Aktivitas produksi masih menghadapi permasalahan berupa tingginya jumlah reject pada proses packing yang berdampak pada penurunan efisiensi dan peningkatan biaya operasional. Penelitian ini bertujuan menganalisis penyebab reject packing serta merumuskan dan mengevaluasi solusi perbaikan melalui integrasi metode Statistical Process Control (SPC), Root Cause Analysis (RCA), dan Six Sigma. Data reject periode April–September 2025 dianalisis menggunakan SPC, perhitungan DPMO dan level sigma, diagram Fishbone, serta rekomendasi perbaikan dengan metode 5W+1H. Hasil penelitian menunjukkan bahwa reject tertinggi terjadi pada primary packaging dengan jumlah 514.874 unit, terutama pada mesin A1 dan A2 di Area Produksi A, dengan level sigma masing-masing 3,241 dan 3,499. Faktor penyebab utama berasal dari aspek manusia, mesin, metode, dan material. Setelah penerapan usulan perbaikan, tingkat reject primary packaging menurun dari 4,27% menjadi 0,55% atau berkurang sebesar 3,72 poin persentase. Temuan ini menunjukkan bahwa integrasi SPC, RCA, dan Six Sigma efektif dalam mengurangi reject packing serta meningkatkan kualitas dan efisiensi produksi di PT XYZ.
Penerapan Perawatan Mesin Packing Topping dengan Metode Reliability Centered Maintenance (RCM) dan Failure Mode and Effect Analysis (FMEA) untuk Mengurangi Downtime dan Meningkatkan Produktivitas di PT WOW Ari Teguh Prasetyo
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4822

Abstract

This study aims to determine how the machine maintenance system is carried out at PT WOW and to analyze the maintenance of the topping packing production machine. The research was conducted using the Reliability Centered Maintenance (RCM) and Failure Mode and Effect Analysis (FMEA) methods, supported by the calculation of Mean Time Between Failure (MTBF) and Mean Time to Repair (MTTR). The results showed that there were six component failures with a total RPN of 645. The average RPN of each component was as follows: bearing 405, heater 128, switch foil jam 36, sensor vibrator 32, control panel 24, and per tarik 20. The highest RPN was obtained in the bearing at 405, while the lowest was in the per tarik at 20. Based on the Logic Tree Analysis, all components fall into category B, so the recommended maintenance strategy is Condition Directed maintenance. Based on the comparative analysis, the proposed improvement using the RCM design was able to reduce the average downtime by 46%, with an MTBF of 54.60 hours and an MTTR of 6 hours, and increase the average production achievement from 86.69% to 93.14%. These findings imply that condition-based scheduled maintenance can improve machine reliability and production productivity. Abstrak. Penelitian ini bertujuan untuk mengetahui bagaimana sistem perawatan mesin yang dilakukan di PT WOW serta menganalisis pemeliharaan mesin produksi packing topping. Penelitian dilakukan dengan menggunakan metode Reliability Centered Maintenance (RCM) dan Failure Mode and Effect Analysis (FMEA) yang didukung dengan perhitungan Mean Time Between Failure (MTBF) dan Mean Time to Repair (MTTR). Hasil penelitian menunjukkan bahwa terdapat enam kegagalan komponen dengan total RPN sebesar 645. RPN rata-rata setiap komponen yaitu bearing 405, heater 128, switch foil jam 36, sensor vibrator 32, control panel 24, dan per tarik 20. RPN tertinggi terdapat pada bearing sebesar 405 dan yang terendah pada per tarik sebesar 20. Berdasarkan Logic Tree Analysis, seluruh komponen termasuk kategori B sehingga strategi pemeliharaan yang direkomendasikan adalah Condition Directed maintenance. Berdasarkan analisis perbandingan, usulan perbaikan dengan perancangan RCM mampu menurunkan rata-rata downtime sebesar 46% dengan MTBF 54,60 jam dan MTTR 6 jam, serta meningkatkan rata-rata pencapaian produksi dari 86,69% menjadi 93,14%. Temuan ini mengimplikasikan bahwa pemeliharaan terjadwal berbasis kondisi dapat meningkatkan keandalan mesin dan produktivitas produksi.
Rancang Bangun Sistem Monitoring Suhu dan Keamanan Ruang Server Berbasis Internet of Things menggunakan ESP32-CAM dengan Visualisasi Data pada Grafana Muhammad Miftahhudin; Dani Sasmoko; Iman Saufik Suasana
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 3 (2026): September: JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i3.4835

Abstract

Server room monitoring is a crucial aspect of maintaining device stability and ensuring the security of information technology infrastructure. This study aims to design and implement an Internet of Things (IoT)-based server room monitoring system using an ESP32-CAM integrated with a DHT22 temperature sensor, a PIR motion sensor, InfluxDB, Grafana, and a Telegram Bot. The research employed the Research and Development (R&D) method with a prototype development approach, consisting of the stages of requirements analysis, system design, implementation, and functional testing. The developed system is capable of monitoring server room temperature in real time, detecting human presence using a PIR sensor during predefined monitoring periods, sending notifications along with captured images via Telegram, and storing as well as visualizing monitoring data on a Grafana dashboard through InfluxDB. The testing results indicate that the system performs according to its design, with the DHT22 and PIR sensors achieving a detection success rate of over 95%. In addition, data transmission to Grafana and Telegram notifications are delivered in real time, enabling fast and accurate monitoring of server room conditions. The implementation of this system can improve monitoring effectiveness, accelerate responses to abnormal conditions, and support the security and operational reliability of the information technology infrastructure at BBPMP Central Java.
Rancang Bangun Robot Forklift Menggunakan Computer Vision Berbasis Qr Code dan Navigasi Line Follower untuk Pemindahan Barang M. Rosyibad Rizein; Mufti Ari Bianto; Khairul Umam
Jurnal Penelitian Teknologi Informasi dan Sains Vol. 4 No. 1 (2026): : JURNAL PENELITIAN TEKNOLOGI INFORMASI DAN SAINS (JPTIS)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jptis.v4i1.4838

Abstract

In the advanced era of technology has accelerated automation across various sectors, including the logistics industry, which requires material handling processes to be fast, efficient, and safe. One of the key pieces of equipment supporting these operations is the forklift. However, manual forklift operation remains prone to accidents due to limited visibility, operator fatigue, insufficient skills and concentration, as well as inadequate forklift maintenance. According to the National Safety Council, more than 24,000 forklift-related accidents were recorded in 2022. As an automation solution, Automated Guided Vehicles (AGVs) have been widely developed for material handling applications. Nevertheless, most AGVs still rely primarily on sensor-based navigation and have not yet integrated computer vision for object recognition and destination determination. Therefore, this study proposes the design and development of a forklift robot that integrates YOLOv8-based computer vision with line follower navigation to perform autonomous material handling based on QR Code information. YOLOv8 is employed to detect QR Codes, while the decoded information is used to determine the destination for object placement. The transported object is a square-shaped item measuring 10 × 10 cm, equipped with a 4 × 4 cm QR Code facing the robot to ensure successful detection. System evaluation was conducted in a laboratory environment using a line follower track to simulate an automated material handling process. The experimental results show that the QR Code recognition system achieved a 100% detection accuracy across 40 test trials. The overall material handling effectiveness reached 74%, with 177 successful tasks out of 240 trials. The success rates for object lifting, intersection detection, and object placement were 100%, 98%, and 93%, respectively. Performance degradation occurred during intersection exit, returning to the main path, and returning to the home position due to limitations in line sensor readings, track conditions, and motor speed stability. The results demonstrate that the integration of YOLOv8-based computer vision and line follower navigation is capable of supporting autonomous material handling in a laboratory-scale environment.

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