PHONOCARDIOGRAM MONITOR VIA BLUETOOTH WIRELESS NETWORK

  • ไกรลาส มาตรมูล Pibulsongkram Rajabhat University
  • อภิญญา คล้ายใจตรง
  • วสุ พันไพศาล
Keywords: phonocardiogram (PCG), bluetooth, stethoscopes, frequency, phonocardiogram (PCG), frequency, stethoscopes, bluetooth

Abstract

This research designs and constructs phonocardiogrammetric device with bluetooth connectivity. A modified stethoscopes with miniaturized condenser microphone is used as     a tool for retrieving cardio phonogram data. The analog sound is then amplified with non-inverting amplifier with the gain of 47:1 and low-pass filter with 1 kHz cut-off frequency. An analog cardiophonogram data is then converted to digital by arduino nano reduce instruction set computing. Finally, the bluetooth module HC-05 is used to transfer digital cardiophonogram to an application installed on the target mobile device. A cardiophonogrammetric display application uses Basic4Android as a tool to achieve graphical plot of digital data transferred from HC-05 module. It was found that the digital data transferred from phonocardiogrammetric device to the mobile phone is wireless, clear and correct.

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Published
2018-08-28
How to Cite
มาตรมูลไ., คล้ายใจตรงอ., & พันไพศาลว. (2018). PHONOCARDIOGRAM MONITOR VIA BLUETOOTH WIRELESS NETWORK. SRU ournal of cience and echnology, 3(2), 13-25. etrieved from https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/133455
Section
Research Articles