JURNAL TEKNOLOGI INDUSTRI

Pengembangan Sistem Keamanan Portal Otomatis Cerdas melalui Identifikasi Pelat Nomor Kendaraan Berbasis OCR di Satrad 232

Rizky Irwan, Sumpena Sumpena — Thu, 04 Dec 2025 00:00:00 +0800

Security at strategic military installations is fundamental to a nation’s defense. Security systems at facilities like Radar Unit 232 still depend on manual surveillance, which has limited efficiency and accuracy for vehicle identification. This research aims to develop an automated gate system based on license plate recognition using Optical Character Recognition (OCR) to improve security and operational efficiency. The study used a Research and Development (R&D) approach with a waterfall model, covering requirement analysis, system design, implementation, and testing. The system integrates a webcam, YOLOv8 for license plate detection, OCR for character extraction and an Arduino Nano as the gate controller. Testing was conducted using 1500 images of official vehicles from Radar Unit 232 in various lighting and angle conditions. The results showed a 93% license plate detection accuracy and an 84.9% OCR accuracy, leading to an overall integrated system success rate of 92.9%. The system’s response time is under 5 seconds with 98.3% reliability in normal operations. This system successfully reduce dependence on manual guards and enhances the efficiency of vehicle verification, contributing a computer vision-based security with adequate accuracy and speed for military implementation.

RANCANG BANGUN PENGUKURAN SUHU DAN KELEMBABAN PADA PENYIRAMAN OTOMATIS UNTUK TANAMAN KACANG TANAH BERBASIS IOT

Nicholas Herdiyanto Nugroho, Nurwijayanti K N — Thu, 04 Dec 2025 00:00:00 +0800

Efficient, automated watering is crucial in modern agriculture. IoT (Internet of Things)-based automatic watering offers a solution to this challenge, particularly for peanut plants, which require precise and accurate watering. This research aims to design and test an IoT-based automatic watering system for peanut plants. The system is designed to optimize water use and increase efficiency in peanut cultivation. Identified problems include difficulty in determining the correct amount of water, water wastage due to manual watering, and inaccurate visual observations. This research focused on the design of the automatic water regulation system, the water pump control method, and the sensitivity of the soil moisture sensor in the system. Test results showed that the system performed well. The soil moisture sensor can detect water levels and automatically control the water pump. The water pump activates when soil moisture is below 30% and shuts off when it reaches 60%. There was no discrepancy between the sensor readings and manual calculations, demonstrating the system's accuracy.

Prototipe Monitoring Controling Suhu dan Kelembaban Pada Kandang Ayam Petelur Berbasis Internet Of Things (IoT)

M Adam Alfariz, Sumpena sumpena — Thu, 04 Dec 2025 00:00:00 +0800

Controlling temperature and humidity is a critical aspect of layer chicken management, as uncontrolled environmental fluctuations can increase stress levels, reduce comfort, and negatively affect productivity. In practice, most farmers still rely on manual monitoring methods, which are unable to respond quickly to rapidly changing conditions. This study aims to develop and evaluate a prototype Internet of Things (IoT)-based monitoring and controlling system for regulating temperature and humidity in layer chicken cages using a NodeMCU ESP8266, a DHT22 sensor, and the Home Assistant platform for real-time monitoring and automated actuator control. Experimental testing was conducted in both open and closed environments to assess sensor accuracy and system effectiveness. Data were collected at 5-minute intervals. The results show that the DHT22 sensor demonstrates low error rates, with temperature errors ranging from 0–2.00% in closed environments and 0.32–0.64% in open environments, while humidity errors range from 0.26–1.17%. The automated control system effectively maintained cage temperature near the ideal range (±32°C), increasing temperature by 2.6–4.3°C under cooler conditions and decreasing temperature by 1.8°C during hotter periods. For humidity control, the system increased humidity levels by 1–3% as required These findings indicate that the developed IoT-based system provides fast response, stable performance, and high accuracy in maintaining environmental conditions within the optimal range for layer chickens, offering a more efficient solution compared with conventional methods. This study contributes a novel application of Home Assistant as a centralized control platform, which remains rarely explored in similar research.

Sistem Proteksi Portal Parkir Sepeda Motor Pada Area Parkir Universitas Dirgantara Marsekal Suryadarma

Rianto Parlin Siahaan, Effendi Dodi Arisandi Arisandi — Thu, 04 Dec 2025 00:00:00 +0800

The Internet of Things (IoT)-based parking gate protection system was developed to enhance vehicle security in flood-prone parking areas at Universitas Dirgantara Marsekal Suryadarma. This study aims to design and evaluate an automated protection system capable of detecting water levels using the P31 float switch sensor and activating the parking gate mechanism through the NodeMCU ESP8266 microcontroller. A quantitative experimental method was applied by testing the system under various water level conditions ranging from below 100 cm to above 150 cm. Experimental results indicate that the sensor accurately detects critical flood levels between 100 and 150 cm, triggering an automatic gate-opening response within an average of 3 seconds. Furthermore, the average data transmission time from the sensor to the server is recorded at 2 seconds, demonstrating effective real-time monitoring capability. With consistent performance and rapid response, the system proves to provide additional protection against flood risks while improving the reliability of campus parking facilities.

Rancang Bangun Antena Mikrostrip Mimo 2×2 Square Patch U-Slot Untuk Komunikasi 5g Frekuensi 2,3 GHz

Esti Handayani, nurwijayanti K N — Thu, 04 Dec 2025 00:00:00 +0800

The 2.3 GHz frequency band is one of the recommended spectrums for 5G deployment due to its favorable propagation characteristics and capability to support high data throughput. However, microstrip antennas operating in this band often suffer from limited bandwidth and radiation efficiency. This research aims to design and implement a 2×2 MIMO microstrip antenna using a square patch with a U-slot and an inset-feed technique to enhance bandwidth and radiation performance for 5G applications. The initial antenna dimensions were calculated using standard microstrip theory, followed by modeling and optimization using CST Microwave Studio Suite 2019. The optimized antenna was then fabricated and tested using a Vector Network Analyzer (VNA) and radiation pattern measurements. Experimental results show that the antenna operates around 2.3 GHz with bandwidth values ranging from 61 to 65 MHz, VSWR below 1.2, and an axial ratio of 1.23 dB, indicating circular polarization. Additionally, the measured gain reaches 6.98 dB. These results demonstrate that the U-slot modification combined with inset-feed implementation effectively improves antenna performance, making the design suitable for MIMO systems in 5G networks.