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All Journal Traksi : Majalah Ilmiah Teknik Mesin Jurnal Teknologi dan Sistem Komputer Journal of Electronics, Electromedical Engineering, and Medical Informatics
Nugroho Budi Wicaksono
Universitas Sanata Dharma
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Heating and Cooling Rate Study on Water Cooling Thermal Cycler using Aluminium Block Sample Nugroho Budi Wicaksono; Sukma Meganova Effendi
Journal of Electronics, Electromedical Engineering, and Medical Informatics Vol 4 No 2 (2022): April
Publisher : Department of Electromedical Engineering, POLTEKKES KEMENKES SURABAYA and IKATEMI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35882/jeeemi.v4i2.1

Abstract

Temperature measurement has many applications in medical devices. In recent days, body temperature become the main screening procedure to justify people infected by SARS-CoV-2. Related to pandemic situation due to SARS-Cov-2, Polymerase Chain Reaction (PCR) method become the most accurate and reliable detection method. This method employs a device named PCR machine or Thermal Cycler. In this research, we focus to build a Thermal Cycler using a low-cost material such as aluminium and using a liquid coolant as the cooling system. We use 2 types of coolant solution: mineral water and generic liquid coolant. Peltier device in thermal cycler serves as heating and cooling element. In heating rate experiments, generic liquid coolant shows a better result than using mineral water due to specific heat capacity and thermal conductivity of water. In the cooling rate experiments, the water pump is activated to stream the liquid solution, the flow rate of liquid solution is influenced by viscosity of the liquid. Generic liquid coolant has approx. 4,5 times greater viscosity than water. The higher flow rate means better performance for cooling rate. Using 2 pieces of 60-Watt heaters and a 60-Watt chiller and aluminium material as block sample, our research shows a heating and cooling rate up to approx. 0,1°C/s. Compared to commercially thermal cycler, our thermal cycler has a lower wattage; this lower wattage performance has been tradeoff with lower ramping rate. Some factors are suspected become the source of contributors of lower ramping rate.
Sistem Informasi Antropometri Terintegrasi Dengan Sistem Tertanam Sebagai Pengukur Berat Dan Tinggi Balita Nugroho Budi Wicaksono; Rinta Kridalukmana; Ike Pertiwi Windasari
Jurnal Teknologi dan Sistem Komputer Volume 4, Nomor 1, Tahun 2016 (Januari 2016)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1166.673 KB) | DOI: 10.14710/jtsiskom.4.1.2016.187-201

Abstract

Indonesian children’s growth are monitored monthly and can be seen by the KMS graphic and posyandu cadre’s book. The data from posyandu activity will be evaluated by the government health department. In practice, there are many obstacles to make posyandu works ideally. First, the cadres of posyandu have a difficulty to use the conventional anthropometric equipment, so the measurement data may not be valid and precise. Second, noting the KMS graphic needs an accuracy. Third, the measurement result in posyandu is not rapidly integrated to the central health data. A technology innovation of automatization anthropometry measurement called OTOTIM designed for infants that supported by an integrated information system is needed to solve those problems. OTOTIM designed to make anthropometric measurement for infants more fast, valid, and accurate. The measurement result will be stored in the database and transferred to an image that describe the nutrition status in the KMS. Microcontroller will process the data from load sensor that measure baby’s weight and ping sensor that measure baby’s height. Then those raw data will be sent to main component of OTOTIM, which is the software itself to gain informative result of measurement, that consist of right suggestion on what kind of treatment used to take care various nutrition condition of infant and comparison against the previous measurement. OTOTIM will also generate statistics which group the infant by nutritional condition for each month. Those statistics will also include information on how percentage of male and female babies which have certain nutritional condition. However those statistic will provide information which is relevant only for specific district as OTOTIM used in regional manner. In order to create statistic which is relevant to consumed by public, those measurement data must be processed in central server which can calculate whole data and grouped them by nutritional condition. OTOTIM introduces the central server that bring synchronization service between OTOTIM software which is installed locally on client PC and the server itself. OTOTIM software have to establish a connection to server to publish subdistrict-specific statistic, however this connection is not mandatory to run primary function. So if client have trouble to connect, this will not interrupt the primary function as OTOTIM supposed to run in less-signal environment.
BLUETOOTH CONTROL SYSTEM ON ELECTRIC WHEELCHAIRS USING VOICE RECOGNITION Eko Arianto; Bernardinus Sri Widodo; Antonius Hendro Noviyanto; Nugroho Budi Wicaksono; Agatha Mahardika Anugrayuning Jiwatami
TRAKSI Vol 23, No 1 (2023): TRAKSI
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/traksi.23.1.2023.%p

Abstract

Currently technology is highly developed and supports many new innovations. The most innovation is wireless technology and voice recognition. One of the widely used wireless technology is Bluetooth. By utilizing Bluetooth connectivity and voice recognition applications on smart phones, it can be used to control electronic equipment. In this study, voice recognition applications and Bluetooth connections will be used on smart phones to control electric wheelchairs. This research begins with designing an electric wheelchair. For Bluetooth communication using the HC-05 Bluetooth module. The wheelchair was developed by modifying conventional wheelchairs to become electric. The user or patient will control the wheelchair using his smart phone through the voice recognition application. Commands in the form of voice that will be sent by the smart phone and received by the HC-05 Bluetooth module, then become input for the Arduino microcontroller. The microcontroller will then process the input data and will instruct the motor driver to give instructions to the wheelchair driving motor. The electric wheelchair's voice control system with a Bluetooth connection can work quite well. The Bluetooth connection used in this electric wheelchair voice control system works optimally and well at a distance of <10 meters, the connection starts to drop at a distance of 10 to 23 meters, and the connection is lost when the distance is 30 meters. The results of the voice recognition test on voice commands were successful with an accuracy of 85%. The total test is 100 orders with a total error of 15 orders.
Co-Authors Agatha Mahardika Anugrayuning Jiwatami Bernardinus Sri Widodo Eko Arianto Ike Pertiwi Windasari Rinta Kridalukmana RR. Ella Evrita Hestiandari Sukma Meganova Effendi