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All Journal International Journal of Electrical and Computer Engineering Jurnal Bakti Masyarakat Indonesia
Ibnu Roihan
Universitas Indonesia
Agriculture, Biological Sciences & Forestry Computer Science & IT Education Electrical & Electronics Engineering Social Sciences Other

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Denoising MAX6675 reading using Kalman filter and factorial design Reski Septiana; Ibnu Roihan; Raldi A. Koestoer
International Journal of Electrical and Computer Engineering (IJECE) Vol 11, No 5: October 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v11i5.pp3818-3827

Abstract

This paper aims to tune the Kalman filter (KF) input variables, namely measurement error and process noise, based on two-level factorial design. Kalman filter then was applied in inexpensive temperature-acquisition utilizing MAX6675 and K-type thermocouple with Arduino as its microprocessor. Two levels for each input variable, respectively, 0.1 and 0.9, were selected and applied to four K-type thermocouples mounted on MAX6675. Each sensor with a different combination of input variables was used to measure the temperature of ambient-water, boiling water, and sudden temperature drops in the system. The measurement results which consisted of the original and KF readings were evaluated to determine the optimum combination of input variables. It was found that the optimum combination of input variables was highly dependent on the system's dynamics. For systems with relatively constant dynamics, a large value of measurement error and small value of process noise results in higher precision readings. Nevertheless, for fast dynamic systems, the previous input variables' combination is less optimal because it produced a time-gap, which made the KF reading differ from the original measurement. The selection of the optimum input combination using two-level factorial design eased the KF tuning process, resulting in a more precise yet low-cost sensor.
PEMBERDAYAAN MASYARAKAT UNTUK MENCEGAH KEMATIAN BAYI : PEMINJAMAN GRATIS INKUBATOR UNTUK SELURUH NUSANTARA Ibnu Roihan; Juan Karnadi; Arbi Riantono; Raldi Artono Koestoer
Jurnal Bakti Masyarakat Indonesia Vol 3, No 2 (2020): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v3i2.9414

Abstract

One of the 17 frameworks for the Sustainable Development Goals (SDGs) program is about healthy life and encouraging prosperity for all ages. The Indonesian government, within the framework of SDGs targeting NMR, can decrease to 12 deaths per 1000 births. The existence of an incubator as a premature baby warmer device is essential. But such health facilities in the area are still lacking. The Grashof Portable Home Inkubator, one of the innovations from Universitas Indonesia, was lent free of charge as one of the product-based community engagement activities from 2012 to the present. It was lent freely to the mother's baby's home from the lower-class community. The network of volunteer agents is at the forefront of implementing this activity in many locations in Indonesia. The volunteer agents replace the primary cost production of the incubator so the problem of funds can be overcome. Socialization and collaboration with all levels of society, both individuals and institutions, is carried out so that more premature babies can be helped. From 2012 until now, this activity has helped more than 3000 babies carried out by volunteer agents who already exist in 22 provinces spread over 103 locations. This activity has increased to community empowerment, which directs or indirectly helps government programs in reducing infant mortality. Public awareness to help others, especially poor people, can make life's welfare betterABSTRAK:Salah satu dari 17 kerangka kerja program Sustainable Development Goals (SDGs) adalah tentang kehidupan yang sehat dan mendorong kesejahteraan bagi semua orang di segala usia. Pemerintah Indonesia dalam kerangka SDGs menargetkan angka kematian bayi / neonatal (AKB/AKN) turun menjadi 12 kematian per 1000 kelahiran. Keberadaan inkubator sebagai alat penghangat bayi prematur sangatlah penting. Namun fasilitas kesehatan seperti itu di daerah tersebut masih kurang. Inkubator Grashof Portabel yang merupakan salah satu produk inovasi dari Universitas Indonesia ini dipinjamkan secara cuma-cuma sebagai salah satu kegiatan pengabdian masyarakat berbasis produk dari tahun 2012 hingga saat ini. Inkubator dipinjamkan secara gratis ke rumah orangtua bayi dari golongan pra-sejahtera. Jejaring relawan menjadi garda terdepan dalam pelaksanaan kegiatan ini di banyak lokasi di Indonesia. Agen relawan mengganti biaya pokok produksi inkubator sehingga masalah dana bisa teratasi. Sosialisasi dan kerjasama dengan seluruh lapisan masyarakat baik individu maupun institusi dilakukan agar lebih banyak bayi prematur yang dapat tertolong. Sejak tahun 2012 hingga saat ini kegiatan ini telah membantu lebih dari 3000 bayi yang dilaksanakan oleh agen relawan yang sudah ada di 22 provinsi yang tersebar di 103 lokasi. Kegiatan ini meningkat menjadi pemberdayaan masyarakat, yang secara langsung maupun tidak langsung membantu program pemerintah dalam menurunkan angka kematian bayi. Kesadaran masyarakat untuk membantu sesama, terutama masyarakat pra-sejahtera dapat meningkatkan kesejahteraan hidup lebih baik.
Co-Authors Arbi Riantono Juan Karnadi RA. Koestoer Reski Septiana