Design of a novel portable fetal cardiac detection system
- DOI
- 10.2991/icmia-16.2016.103How to use a DOI?
- Keywords
- Fetal cardiac monitoring; Doppler shift; Weak signal detection; Sensitivity; Noise removal
- Abstract
The fetal heart rate (FHR) is a significant indicator of whether the fetus in the mother's womb is healthy. Ultrasonic Doppler detection is extensively used in the detection of FHR due to its high sensitivity, good directivity, and non-invasiveness. However, analog multiplier demodulation is usually adopted in most of the apparatuses that detect the FHR, and those devices limit their functions. Furthermore, their sensitivities are not very high. Therefore, this paper implements a new type of portable and fully digital FHR monitoring system that can be used for perinatal FHR detection. Windowed ultrasonic echo and digital multiplication methods are applied to obtain the Doppler frequency shift signal, which can be detected at specific tissue depths. Our proposed system consists of three parts: 1) the Complex Programmable Logic Device (CPLD) ultrasonic excitation and acquisition circuit, 2) the Microcontroller Unit (MCU) and peripheral circuit, and 3) the system software. Compared with two commercial fetal heart monitoring apparatuses, our results demonstrate that our proposed system can be a stable and reliable alternative for the detection of FHR.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Ming Dai AU - Xin Chen AU - Kai Zhan AU - Haoming Lin AU - Shaoxing Li AU - Siping Chen PY - 2016/11 DA - 2016/11 TI - Design of a novel portable fetal cardiac detection system BT - Proceedings of the 2016 5th International Conference on Measurement, Instrumentation and Automation (ICMIA 2016) PB - Atlantis Press SN - 1951-6851 UR - https://doi.org/10.2991/icmia-16.2016.103 DO - 10.2991/icmia-16.2016.103 ID - Dai2016/11 ER -