JECCOM: International Journal of Electronics Engineering and Applied Science

Design and Construction of Automatic Salted Fish Drying Device Based on Microcontroller

Milda Yuliza, Yultrisna, Efrizon, Adi Chandranata, Ella Kurnia — Mon, 30 Dec 2024 00:00:00 +0000

An Automatic Salted Fish Dryer controlled by a microcontroller has been made based on a drying process that takes a long time, which is around 3-4 days and the weather is also sometimes unpredictable, thus inhibiting the productivity of making salted fish. The purpose of this study is to design a salted fish dryer that can work automatically to speed up the drying process of salted fish by maintaining a temperature that does not exceed 45 ° C to obtain a salted fish humidity of 40%. The research method starts from making a prototype and measuring system performance. The results of measuring the performance of drying salted fish using an automatic salted fish dryer are faster than the traditional method which requires a drying time of 3-4 days. By using an automatic dryer, it only takes 3-5 hours of drying and can reduce fish humidity by up to 40%, in accordance with SNI with a maximum drying temperature of 45 ° C. The DHT22 sensor is used to measure temperature and humidity, which is then displayed on the LCD. Overall, the tool can function well. Suggestions for further research, Hybrid energy sources can be added and condition monitoring can be done via the Internet of things (IoT).

Solar Panel Installation Engineering for Energy Conversion Optimization in Solar Power Plants

Mon, 30 Dec 2024 00:00:00 +0000

The sunlight absorption is the main technical factor of solar power plants performance because it affects to the amount of solar energy conversion. In order to optimize this absorption, the position of solar panel should be adapted to the direction of sunlight so it can improve the economic factor of solar power plants utilization. Furthermore, in this research, we have designed and tested three serial connection solar panels with single solar tracker (SST) to optimize the absorption of sunlight and its conversion to electricity, where the electrical current from panel with SST (1.41 – 2.52 A) is higher than panel without SST (0.89 – 1.59 A). Another parameter, namely electrical power of solar power plants, is proportional to electrical current and also higher than without SST (65.2 – 102.4 W), so the stored electrical energy in battery can be also increased. The utilization of Arduino Mega 2560, driver motor BTS7960, and linear actuator can optimize the solar panel absorption and finally this control circuit addition can increase the solar energy conversion to electricity. Besides that, this control circuit will reset the position of solar panel at 6.30 pm to the starting position. It means the solar energy conversion can be maximized by using SST and this advantage can increase the efficiency and support the transition to renewable energy.

Implementation of Indoor Positioning System for Monitoring Geriatric Syndrome Patients Based on Bluetooth Low Energy

Reza Nandika, Anton Hidayat, Herizon, Anggara Nasution, Andreansyah Putra — Mon, 30 Dec 2024 00:00:00 +0000

Health issues commonly faced by the elderly include geriatric syndromes. The impact of these syndromes on older adults can lead to instability (disruption of balance, making them prone to falls) and intellectual impairment. Because of these concerns, monitoring is essential for individuals experiencing geriatric syndromes to prevent symptoms from worsening due to falls. As technology advances, object tracking systems using Global Positioning System (GPS) have developed significantly. However, GPS tracking systems are primarily suitable for outdoor tracking. Thus, there is a need for a method capable of detecting individuals with geriatric syndrome indoors and providing alerts if they fall. This study proposes a multi-room monitoring system for patients with geriatric syndrome to mitigate the adverse effects of falls by implementing an Indoor Positioning System (IPS) that utilizes Bluetooth Low Energy (BLE) technology and gyroscope sensors for fall detection. The proposed IPS employs BLE technology using the trilateration method. The ESP32 module is selected as the reference point for scanning BLE signals, measuring signal strength (RSSI), and transmitting data to a server for further processing via the Message Queuing Telemetry Transport (MQTT) protocol. The result of the test carried out during indoor conditions showed an average deviation in the x-cordinate of 0.28 meters and y-cordinate of 0.27 meters from the patients actual location.

Realtime and Liquid Tank Volume Monitoring Based on Internet of Things

Andrizal, Dedi Kurniadi, Nadia Alfitri, Humaira, Fiona Novia Hafsyah — Mon, 30 Dec 2024 00:00:00 +0000

An underground tank is a type of tank installed by burying it on the ground. Underground tanks in the form of a storage area with large dimensions for either liquid or gas, especially BBM (fuel) which is stored underground at Public Fuel Filling Stations his (SPBU). The supply of liquid in this tank really needs to be maintained to meet the need for liquid. In order to be able to monitor the volume of liquid in the underground tank, a device was designed that can monitor the volume of liquid in the tank remotely. This device uses an ultrasonic sensor that can detect the volume of liquid that has been converted from the distance detected by the sensor, and uses Wemos D1 mini on the device and ESP32 on the server as a microcontroller that sends data from the reading process to smartphones and websites. The device works on ultrasonic sensor which can sense the distance and with some calculation it detects how much liquid is sensed as a volume and employs a Wemos D1 mini on the side of device and an ESP32 on the server part as a microcontroller that sends reading data to smartphones and websites. The smartphone displays show liquid volume and distance shown by the sensor while in the server display distance is plotted against time in graphical form. Test results reveal that this device can remotely detect underground tank liquid volume using smartphones or websites with a success rate of 72.35%. This failure rate of 27.65% is caused by curved tanksurface and misplacement of the tank.

Detection of Sitting Posture for Employees Using Microcontroller

Mon, 30 Dec 2024 00:00:00 +0000

Sitting for prolonged periods with improper posture can cause serious health problems, including Low Back Pain (LBP) and other musculoskeletal disorders. Many employees spend long hours sitting at their desks without realizing the impact of their posture on their health. To address this issue, an employee sitting posture detector has been developed to monitor and analyze sitting posture and duration, helping to prevent long-term health risks. This device uses eight load cell sensors strategically placed to measure weight distribution and detect different sitting positions with high accuracy. It also incorporates an SD card module for data storage and a high-accuracy Real-Time Clock (RTC) timer to record sitting duration. The microcontroller processes the collected data and transmits it via a Bluetooth module to a dedicated smartphone application, allowing users to track their posture in real time. The tool is capable of detecting eight different sitting postures: ergonomic, overlap left back, overlap right back, overlap left, overlap right, sit all, sit front, and sit front back up. When the system detects prolonged improper sitting postures, it activates an alarm to remind employees to adjust their posture or take breaks. By utilizing this device, employees can develop better sitting habits, reducing the risk of health issues related to poor posture. This tool not only improves individual well-being but also enhances workplace ergonomics, ultimately leading to increased productivity and a healthier work environment.