Oktrison Oktrison’s scientific contributions

Biogas is a renewable energy source with significant potential to reduce dependence on fossil fuels. However, conventional biodigester systems still face several challenges in monitoring methane gas production. Therefore, this research aims to design and develop a biogas digester prototype equipped with a stirrer and an Internet of Things (IoT)-based sensor to detect methane (CH4) gas levels. The research methodology involves designing a biodigester with an automatic stirrer and an MQ-2 sensor that can detect methane gas levels in real time. The data obtained is transmitted via ESP32 and displayed on the Blynk application. The research results show that the designed system can increase methane gas production and allow remote monitoring. The conclusion of this study is that the integration of IoT technology in the biodigester system can improve production efficiency and safety in biogas utilization.

Vibration is a back-and-forth movement in a certain time interval that produces waves in a medium. Vibration can occur on a small or large scale. So on a small scale, a vibration sensor is needed to detect certain phenomena such as vibrations of engine capacity and detected pressure. On a large scale, vibration sensors can be used to detect earthquakes and other major phenomena and design a real-time vibration detection system for long distances, so vibration sensor components, controllers, and radio systems are needed. Therefore, researchers made a simple vibration detector using the experimental method. This final project aims to design, realize, and test the characteristics of the MPU 5060 accelerometer vibration sensor that is connected wirelessly. The characteristics of the sensor are tested against the magnitude of the vibration source, the distance of the vibration source, the placement medium, and the detection period. After testing the tool 10 times, it can be concluded that this simple vibration detector functions well and the highest average load results are obtained, namely in the 1-kilogram load test with a value of 1.93026 and the lowest average results are in the ceramic load test with a value of 0.651357.

The COVID-19 virus is very dangerous. In addition to attacking the lungs, this virus can also attack the heart directly. The relationship between heart health and COVID-19 occurs because blood vessel clots in COVID-19 patients increase the risk of blood vessel disorders and make the heart work harder. Therefore, researchers designed a heart rate monitoring device. This tool serves to maintain heart health and oxygen levels in the patient's blood and can also monitor people under COVID surveillance. The formulation of the problem from this research is how to design an IoT system to monitor COVID-19 patients through heart rate and location and how it performs. The purpose of this study is to analyze the performance of the device and design a tool to measure heart rate and blood oxygen levels through the IoT system and GPS location so that doctors can access heart rate data from any location. This research method uses a Gy-MAX30100 sensor, Wemos, and a GPS module. Of the 2 data samples that have been tested, the highest heart rate value is 78 bpm, the lowest is 76 bpm, and the highest oxygen level is 95 mmHg and the lowest is 93 mmHg. So in conclusion, this tool can make it easier for doctors to get important information about the condition of patients or people under observation that can be accessed by doctors anywhere and anytime via the internet.

The partners involved in this PKM activity are farming communities in Nagari Matur Mudik, Nagari Lawang and Nagari Tigo Balai Kec. Thanks, Kab. Agam is located to the north of Padang City, West Sumatra Province, which is ± 94 km from the Padang ATI Polytechnic Campus. Most of the people of Nagari Matur Mudik, Kec. Thanks, Kab. Agam has a livelihood as a farmer. The Community Partnership Program aims to increase the economic value of agricultural commodities in Nagari Matur Mudik, Nagari Lawang and Nagari Tigo Balai, Matur District, Agam Regency. Sales of agricultural raw materials are considered to be still constrained in the distribution/sales process which is only limited to traditional markets. Efforts are being made through the processing of agricultural raw materials into delicious and nutritious products, as well as having competent selling points in the market. The methods used in this program are counseling and training methods. This program works with the PKK team and the farming community as partners in the center for processing agricultural products into food products for the trading community. The flow of activities includes the preparatory stage in the form of observations to related offices/agencies. Then the implementation stage, namely counseling and training for the community in Matur District, which is centered at the Nagari Matur Mudik Village office, Nagari Lawang and Nagari Tigo Balai. With direct participation by the community, it is hoped that new and creative ideas will emerge by the community in processing agricultural products so that this program can be sustainable as a concrete effort to continue to improve the economy of the local community.