Rancang bangun stetoscope wireles untuk pemeriksaan pasien dengan penyakit menular

Setioningsih, Endang Dian and Sumber, Sumber and Hamzah, Torib (2023) Rancang bangun stetoscope wireles untuk pemeriksaan pasien dengan penyakit menular. Project Report. Politeknik Kesehatan Kemenkes Surabaya.

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Abstract

Cardiac auscultation is a technique used to diagnose heart conditions through the heart sounds produced and detected by a stethoscope. Many studies have used an electric stethoscope as an alternative in auscultation of heart ounds But it needs further development on the electronic stethoscope to reduce the noise received by the tool. Therefore, this study aims to determine the effectiveness of digital Kalman filters with coefficient values of R:100 and Q1, R:10 and Q:1, R:1 and Q:1, R:1 and Q:0.1 as well as the Butterworth digital Bandpass Filter. with order 2, order 4, order 6, and order 8 in reducing noise on an electronic stethoscope using the MAX 9814 sensor. This research uses the MAX 9814 sound sensor, ESP 32, Matlab, Mannequin for heart sound capture, and a bluetooth headset for listening to heart sounds detected. The method used to analyze the effectiveness of digital filters is SNR (Signal to Noise Ratio) by comparing the increase in SNR before and after filtering using 2 types of digital filters along with their coefficient and order values. These results will be analyzed by looking at the average SNR value obtained after going through 2 types of digital filters. The result is that the digital Bandpass Butterworth filter with order 8 has a higher SNR value compared to the other SNR values of 4.198 dB, while for the Kalman digital filter the highest SNR is found in the use of coefficient values R: 100 and Q: 1 with a value of 2,868 dB. It can be concluded that the digital filter Bandpass Butterworth filter with order 8 has the best effectiveness value. The implication in this study is that we can find out the use of a good digital filter which is read from the SNR value measured on an electronic stetoscope that uses the MAX9814 sensor.

Item Type:	Monograph (Project Report)
Uncontrolled Keywords:	Stetoscop ; pemasangan modul sensor MAX 9814 ; pemrograman filter kalman dan butterworth bandpass
Subjects:	R Medicine > Medical Electronics
Divisions:	Poltekkes Kemenkes Surabaya > Pusat Penelitan dan Pengabdian Masyarakat > Penelitian
Depositing User:	Misnawar
Date Deposited:	05 Sep 2024 08:46
Last Modified:	05 Sep 2024 08:46
URI:	http://repo.poltekkesdepkes-sby.ac.id/id/eprint/8778

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