Displayable Portable Doppler Device Via the Line Application

Authors

  • Siriwan Chokkha School of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand
  • Sukasem Watcharamaisakul School of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.
  • Thanasak Songbandhit School of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.
  • Ratchanon Arthit School of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.
  • Kunlayanee Srinamueang School of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.
  • Settawit Poochaya School of Telecommunication Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.
  • Jantakan Watcharamaisakul School of Family Health and Midwifery Nursing, Institute of Nursing, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.
  • kamonwan thipprasert Biomedical Innovation Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima 30000, Thailand.

Keywords:

heart rate (HR), mortality rate, microphone sensor, Arduino

Abstract

The innovation in crafting home fetal heart rate monitors is driven by the crucial role of heart rate measurement in assessing initial health. The KY 037 sensor, known for its proficiency in collecting heart sound data, is meticulously chosen for reliable data acquisition. Following collection, the data undergoes thorough pre-processing before being transmitted to the Arduino Uno R3 (NodeMCU ESP8266 v2) microcontroller. A sophisticated algorithm enables seamless data transmission, resulting in a coherent signal readout on a computer, real-time display on an LCD screen, and simultaneous representation on the Line application. The developed prototype, calibrated using the standard LifeDop-250 model commonly used in hospitals, showed a notable 1.62% reduction in measurement error after thorough calibration and the implementation of a newly replicated setting. This achievement surpasses the typical 3-5% errors range observed in medical devices, showcasing prototype ‘s precision in heart rate measurement. The prototype's efficiency is highlighted by its 96% lower cost compared to standard instruments, making it not only economically viable but also a cost-effective alternative for broader accessibility. Preliminary tests indicate the potential for the prototype to evolve into a home fetal heart rate monitor, offering a promising contribution to reducing fetal mortality rates and advancing local healthcare technology.

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5 Electrical circuit design of heart rate detected system

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Published

2025-04-30

How to Cite

Chokkha, S., Watcharamaisakul, S., Songbandhit, T., Arthit, R., Srinamueang, K., Poochaya, S. ., Watcharamaisakul, J., & thipprasert, kamonwan. (2025). Displayable Portable Doppler Device Via the Line Application. Recent Science and Technology, 17(2), 261691. retrieved from https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/261691

Issue

Vol. 17 No. 2 (2025): May- August

Section

Research Article

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