Journal of Electrical, Marine and Its Application

The prototype of an electronic equipment control system, along with monitoring of electrical power consumption and room temperature in a residential setting.

2025-08-13T22:36:11+00:00

The rapid advancement of technology has led Indonesia into the era of Industry 4.0, where technological innovations are increasingly utilized for daily activities. Traditionally, people could control electrical devices like lights using switches, but this control was limited by distance, especially in large spaces such as homes. In large rooms, it can be inconvenient to walk all the way to the switch just to turn lights or other devices on or off. Recent advancements in electronics have introduced solutions for remotely controlling electrical appliances, one of which is the Internet of Things (IoT). The IoT technology enables remote management of household devices, making it more convenient to control electronic equipment from a distance. The importance of electricity as a primary need in modern homes is undeniable, with nearly all household appliances relying on electric power. However, the increasing threat of global warming and rising energy costs have made electricity a more expensive commodity. The government’s adjustment of electricity tariffs in 2020 has led to higher monthly energy bills, further exacerbated by high electricity consumption and a lack of awareness in the use of electronic devices. With the current technological advancements, it is possible to automate the control of electronic appliances, optimizing energy usage and minimizing wastage. The research methodology of this study involves a systematic approach to address common issues faced in everyday life. The first step in the research is identifying the problems, followed by a literature review on the components involved, such as the PZEM-004T sensor, ESP32 microcontroller, relay, buzzer, DHT11 sensor, and the Blynk application. The study also includes the preparation of materials, such as purchasing necessary components, designing the control and monitoring system, and integrating it with the Blynk application. The research results show varying success rates when testing the control system, with the success rate calculated by comparing the number of correct commands to the total number of attempts. These results were presented as a percentage. The conclusion drawn from the research is that the control system achieved a high success rate of almost 100%, although it took several minutes to establish a connection between the smartphone and the device when testing from different distances, such as 1 meter, 3 meters, and 5 meters, as well as across different rooms.

Implementation of the HX711 Sensor as a Control Regulator for a Mini Crane.

2025-08-13T22:22:07+00:00

In today's industrial sector, the involvement of technology is crucial across various aspects and industries. One of the most commonly used technologies in this sector is the crane, a tool designed to simplify and reduce the physical effort required by human workers when moving goods or materials. This machine is essential for handling heavy items that cannot be lifted or reached by humans or forklifts. However, in certain industries, there have been issues with crane failures during the process of material handling. These failures often occur when the weight being lifted exceeds the crane's capacity, leading to motor overload and potential damage to the crane’s motor due to excessive load. This research focuses on addressing these issues using the HX711 sensor, a device that measures the weight of loads placed on the crane. The study developed a system with a maximum load capacity of 5 kg, using the HX711 sensor to monitor and control the crane based on the weight being lifted. The weight data is displayed on an LCD (Liquid Crystal Display), providing real-time information about the load being handled by the crane. The goal of this study is to minimize crane malfunctions caused by overloading and to ensure the safe operation of the crane by preventing motor damage due to excessive weight. The research shows that the integration of the HX711 sensor into the mini crane system successfully aids in controlling the load lifted by the crane, thereby reducing the likelihood of damage caused by overloading. The sensor enables accurate weight measurement and load monitoring, helping to maintain optimal functioning of the crane. However, during the testing phase, some errors were observed in the HX711 sensor, which interfered with the system's performance. These issues highlight the need for further calibration and improvements in the sensor’s accuracy to ensure more reliable results in future implementations. In conclusion, while the system shows promising results in preventing crane damage due to overloading, further refinement of the HX711 sensor is needed to enhance its accuracy and reliability in real-world applications. The integration of such technology is key to improving the safety and efficiency of material handling in industrial environments.

Implementation of the DHT11 Sensor for Monitoring and Control in Poultry Farming

2025-08-13T21:42:53+00:00

The poultry farming business, particularly broiler chicken farming, has been in operation since 1980 and continues to thrive and grow in the world of animal husbandry. The prospects for broiler chicken farming are considered favorable, given the consistently increasing market demand. As a result, farmers are compelled to operate on a larger scale, with farm sizes typically ranging from 1 to 5 hectares. While broiler chickens can regulate their body temperature, they struggle to maintain optimal conditions when there are drastic changes in temperature and humidity in their environment. This makes the role of heating (via lamps) and ventilation (through fans or blowers) crucial to maintaining a comfortable temperature for the chickens. The ideal temperature range for broiler chickens in their housing is between 30°C and 34°C, with humidity levels maintained between 50% and 60%. To address this issue, a solution has been proposed in the form of an automated temperature monitoring and control system for poultry housing. This system utilizes Internet of Things (IoT) technology for effective monitoring and regulation of environmental conditions. The study focuses on the design and application of this system. The researchers employed a NodeMCU microcontroller along with a fan and heater to control the temperature. Initially, a setpoint for the temperature in the chicken coop was established using a DHT11 temperature sensor. The system then uses this setpoint to regulate the operation of the fan and heater. The results of the research show that the NodeMCU system functions automatically. Once the temperature reaches the maximum setpoint, the fan is activated to cool the chicken coop. Conversely, if the temperature drops below the minimum setpoint, the heater is activated to warm the coop, thereby stabilizing the room temperature to maintain a comfortable environment for the chickens. In conclusion, the development of this IoT-based temperature monitoring and control system for chicken coops has proven to be effective. The system operates as designed, turning the fan on and off while regulating the heater based on the predetermined setpoints. Additionally, the DHT11 temperature sensor accurately detects room temperature, ensuring the poultry environment remains within the required standards, specifically the 30°C temperature target.

Converter as a Voltage Output Stabilizer for Wind Turbines

2025-08-13T21:08:04+00:00

Technological developments continue to increase every day. All human activities and actions always involve the use of electricity. Fluctuations in world oil prices have encouraged the emergence of various new innovations, so that many renewable energy sources have been discovered to replace fossil energy which is increasingly depleting. One renewable energy source that is widely known and is being developed is the Savonius Vertical Wind Turbine. This tool is a power generator that utilizes energy from the wind. To ensure the operation of the Savonius Vertical Wind Turbine, a battery with specifications of 12 Volt / 7.2 Ah is needed. One of the problems that arises is how to ensure that the voltage produced by the Savonius Vertical Wind Turbine matches the maximum voltage required to charge the battery. Based on this problem, the idea arose to design a SEPIC converter that could increase and decrease the DC voltage. This SEPIC converter is equipped with current and voltage sensors, so we can monitor the current flow coming out of the converter.

Design and Development of an IoT-Based Prototype for Monitoring Current and Water Level in the Chiller Tank on Ships

2025-08-13T22:31:33+00:00

This final project focuses on the chiller system, which is used for cooling or air conditioning rooms on ships. The chiller is part of the HVAC system on the ship. Monitoring the chiller is essential to determine the remaining water volume in the chiller tank, as well as to store the monitoring history in the web server. Currently, the chiller's monitoring system is still manual, meaning the water volume must be filled manually. This process requires a considerable amount of time. To address this issue, the author introduces an innovation titled "Design and Development of an IoT-based Monitoring Prototype for Chiller Tank Water Flow and Level on Ships."

The IoT-based monitoring system works by connecting sensors from the chiller tank components to a NodeMCU, which processes the data. The NodeMCU then sends the relevant data to a web server. The monitoring system tracks not only the water level but also the current and temperature. The current to be monitored is the output current from the chiller pump motor. This data is connected to an application that will notify the user if the current, frequency, voltage of the pump motor, or water level do not meet the specified criteria, triggering an alarm. The temperature being monitored refers to the chiller's temperature used to cool a room.

Additionally, there is a protective system for the chiller pump motor using an MK2P relay, which functions to disconnect the current or voltage in case of a loss of power to the motor. This helps protect the motor from damage by cutting off the control circuit connected to the motor.

Design and Development of a Mini Weather Station Based on Wemos D1 with Real-Time Monitoring Using Laptop or Smartphone

2025-08-13T22:15:27+00:00

The need for real-time weather data is crucial in the maritime industry. Utilizing Weather Station technology ensures the required accuracy in navigation systems and supports educational purposes, particularly for research needs. Weather forecasting involves collecting climate data from specific maritime regions quantitatively. Monitoring weather conditions is vital in the maritime sector due to the unpredictable nature of sea weather. Therefore, it is essential to develop cost-effective, accurate, efficient, and well-integrated weather measurement technologies for onboard navigation systems. The proposed prototype utilizes a Wemos D1 microcontroller equipped with various sensors, including temperature, rainfall, wind speed, and humidity sensors. These sensors collect data that the microcontroller processes, which can then be monitored on a Personal Computer (PC) or smartphone. This data aims to provide valuable insights for seafarers and passengers, enabling them to anticipate sea conditions to ensure safety and comfort during voyages. The study was conducted through literature reviews, exploring the design and construction of a weather station system and referencing previous research documentation. It included identifying material requirements, preparing tools and components, and developing software and hardware configurations to enable an efficient weather monitoring device. Experiments were conducted on individual sensors, including the DHT22, BMP180, anemometer, and rain sensor. Hardware development involved integrating these sensors with a Wemos D1 microcontroller, which was subsequently connected to software capable of real-time monitoring via laptop or smartphone.Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s.

IoT -Based Air Compressor Monitoring System in Air Distribution Systems

2025-08-13T21:35:29+00:00

With the advancement of automation technology in the industrial world, machine operational monitoring systems have become essential to ensure that machinery can be monitored effectively and its performance maintained. This ensures the continuity of industrial activities and safeguards worker safety. In the workshop of PT. X, auxiliary machines play a crucial role in supporting operations across various divisions, particularly the air compressor. The compressor tank has been modified into two tanks, significantly increasing air storage capacity. However, this modification results in the compressor operating 2-3 times longer under high usage intensity, which accelerates performance degradation and may lead to critical failures. To address these issues, the authors propose developing an IoT-based monitoring and protection system. This system is designed to monitor the condition of the air compressor by observing multiple parameters displayed on an interface panel and a website. In addition to real-time monitoring capabilities, the website also includes a data recording feature that allows users to review monitoring history over a specified time period. To facilitate the planning and execution of this final project, a systematic approach is necessary. The research begins with problem identification based on issues observed in the field. The second stage involves a literature study focusing on air compressors and IoT-based monitoring systems. Following this, the project progresses through phases of planning, component preparation, system design for both hardware and software, data collection, and measurement. The final phase involves analyzing and discussing the data obtained. The measurement results indicate that the readings displayed by the monitoring tool for air pressure, obtained from both the pressure gauge and the pressure sensor on the panel display and website, exhibit minimal discrepancies. Similarly, readings captured by the multimeter and the power meter PM1200 for current and voltage monitoring show small differences when displayed on the panel and website. These discrepancies are primarily attributed to sensor accuracy errors and data transmission delays.

The error values recorded by the sensors are minimal, making the system feasible for real-world industrial applications. This research demonstrates the potential for implementing IoT-based monitoring systems in industrial settings to enhance efficiency, safety, and reliability.

Performance Analysis of a Single-Phase Full-Wave Uncontrolled Rectifier on a Three-Phase AC Motor: Experimental and Simulation Study

2025-08-13T17:42:47+00:00

Electric motors are essential electromechanical devices that convert electrical energy into mechanical energy, widely used in both household appliances (e.g., mixers, electric drills, and fans) and industrial applications (e.g., pumps, compressors, and conveyors). In industrial settings, three-phase AC motors are considered the "workhorses" of the industry, accounting for approximately 70% of total electrical energy consumption. This study focuses on the performance analysis of a three-phase AC motor driven by a single-phase full-wave uncontrolled rectifier, emphasizing key parameters such as power, torque, and efficiency curves. The experiment utilizes a three-phase AC motor connected to a 2500-watt lamp load on a generator, regulated incrementally from 0 to 250 watts to observe variations in torque, power, and speed. The experimental procedure includes preparing the test setup, warming up the motor for five minutes, applying incremental loads, recording performance data, and conducting comprehensive data analysis. The results indicate that the maximum power output of 1032.08 watts is achieved at 2846 RPM, while the maximum torque of 3.464 Nm is recorded at the same speed. Additionally, the highest efficiency of 72.68% occurs at 2941 RPM. To optimize efficiency and performance, it is crucial to ensure that the input voltage remains within the motor’s maximum rated voltage capacity. The findings provide valuable insights into the impact of uncontrolled rectification on three-phase AC motor performance, offering potential applications in power conversion, industrial automation, and energy-efficient motor control systems.