Adityaputra, Gde Bayu (2019) Rancang Bangun Elektrokardiograf 12-Leads Untuk Sistem Pengawasan Kesehatan Jantung Jarak Jauh. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Elektrokardiograf merupakan perangkat medis yang dapat merekam sinyal jantung. Hasil dari perekaman ini dinamakan elektrokardiogram (EKG). Dibutuhkan minimal 1 lead untuk monitoring sinyal EKG namun untuk memenuhi standar klinis diperlukan perangkat EKG yang mampu merekam sinyal dari 12 lead. Dalam perancangan EKG 12 lead ini digunakan teknik multipleksing. Kombinasi sadapan untuk membetuk masing-masing sinyal diatur oleh multiplekser 74HCT4051 dan mikrokontroler Arduino secara bergantian. Sinyal analog yang sudah melalui serangkaian pemrosesan secara analog kemudian dikonversi secara digital oleh ADC dengan frekuensi sampling 1KHz. Sinyal digital hasil konversi selanjutnya dikirimkan secara serial dengan baudrate 9600 menuju Raspberry Pi. Dari Raspberry Pi data-data tersebut kemudian ditransmisikan menuju database atau server. Tampilan sinyal EKG kemudian dapat dilihat sebagai grafik pada halaman website. Dari hasil yang didapatkan menunjukkan bahwa sistem secara keseluruhan bekerja dengan baik, dimana sinyal EKG lead I sampai lead V6 yang ditampilkan pada halaman website sesuai dengan pembacaan pada osiloskop dengan error heart rate pada rangkaian instrumentasi kurang dari 0.22%. Rangkaian filter analog yang dirancang memiliki error ±1Hz mampu meredam noise dengan baik. Namun, masih terdapat kekurangan pada sisi pengiriman data, dimana terjadinya data losses apabila menggunakan koneksi internet yang kurang cepat. Perangkat EKG 12 lead ini tidak dapat menampilkan 12 lead secara bersamaan, namun dapat menampilkannya secara berurutan.
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Electrocardiograph is a medical equipment that can record human heart’s signal. Meanwhile, the result of recording the heart signal is electrocardiogram. At least a minimum of 1 lead is needed to monitor ECG signal, but to meet clinical standard, an ECG device that can record signals from 12 leads is needed. In designing the 12 leads ECG, multiplexing technique is used. The lead combination to form each signal is arranged by 74HCT4051 multiplexer and Arduino microcontroller. Heart signals then go through analog signal processing to amplify and filtering. ADC component in Arduino microcontroler is used to convert the analog signal to digital signal (fs=1KHz). The converted digital signal is then sent serially to Raspberry Pi using USB cable (baudrate 9600). From the Raspberry Pi signal data transmitted to the database or server. ECG signal then can be seen on the website page as a graph. The result show us that the overall system works well, where ECG signal from lead I to lead V6 diplayed on the web page looks exactly same as seen on the oscilloscope with heart rate error in instrumentation circuit below 0.22%. The design of analog filter circuit has error about ±1Hz and capable of reducing noise properly. However, there are still failure in data transmission, where data losses happened when using low speed internet connection. This system can not diplay the ECG signals from 12 lead simultaneously, but can be displayed sequentially.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 616.120 754 7 Adi r-1 2019 |
| Uncontrolled Keywords: | Elektrokardiograf 12 Lead, Multipleksing, Internet of Things, Realtime Database, Mikrokontroler Arduino, Raspberry Pi. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105 Data Transmission Systems T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.674 Detectors. Sensors |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Gde Bayu Adityaputra |
| Date Deposited: | 23 Jun 2021 13:23 |
| Last Modified: | 23 Jun 2021 13:23 |
| URI: | http://repository.its.ac.id/id/eprint/60617 |
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