Research Article

, 12 Dec 2025 | 10.62346/ijbsip_q4_v12_no4_25_03

Year : 2025 | Volume: 12 | Issue: 4 | Pages : 1-4

Piezoelectric based Vital Sign Monitoring System

Dr. G. Kalpanadevi¹ *,

1Anna University Chennai, Department of Electronics and Communication Engineering K. Ramakrishnan college of engineering, Tamilnadu, IN

The Piezo Health Sensor is a battery-free, implantable health monitoring system that utilizes fundamental principles of signals and systems to accomplish long-term health estimation. Tap or touch operations are regarded as input excitation signals and converted to electrical signals by piezo- electric energy conversion. These raw and unprocessed electrical signals are conditioned, rectified, filtered and energy is regulated stored in order to constitute the stable DC supply which drives the system. Biological input signals, such as heart rate (HR), SpO2, temperature and humidity are recorded from physiological parameters. These are sampled, digitized and processed with simple DSP (Digital Signal Processing) in the microcontroller. Finally, the processed output signals are displayed on an LCD screen or wirelessly transmitted by IoT communication modules for remote monitoring. The generated power will allow the low-energy biomedical sensors and ESP32/ESP8266 microcontroller to work perpetually in real-time or in Remote or WPT conditions. This integrated device offers a sustainable, eco-friendly and cost- effective substitute to battery-reliant health monitoring devices, while operates on the basis of simultaneous three-in-one energy conversion, signal acquisition, and digital processing system and hence it is very useful for rural health care, emergency response or wearable biomedicine applications.

References

[1] Huang, S., Gao, Y., Hu, Y., Shen, F., Jin, Z. & Cho, Y. Recent development of piezoelectric biosensors for physiological signal detection and machine learning assisted cardiovascular disease diagnosis. RSC Advances, 2023.

[2] Andreozzi, E., Esposito, D. & Bifulco, P. A broadband forcecardiography sensor for simultaneous monitoring of respiration and cardiac vibrations. Frontiers in Physiology, 2021.

[3] Wang, Y., Chen, X., Li, Z. & Xiang, F. Self-powered wearable piezoelectric monitoring of human motion and physiological signals. Advanced Materials Technologies, 2022.

[4] Kim, J. H., et al. Conformable Piezoelectric Devices and Systems for Wearable and Implantable Biomedical Applications. Annual Review of Biomedical Engineering, 2025.

[5] Chen, Y., Zhang, X., Flexible piezoelectric materials and strain sensors for advanced wearable health-monitoring systems. Chemical Science, 2024.

[6] Xu, S., et al. Advances in piezoelectric nanogenerators for self-powered health monitoring and cardiac therapy. Science Advances (or similar high-impact review), 2024.

[7] Xing, X., et al. Blood pressure monitoring with piezoelectric bed sensor system. Journal of Biomechanics / Engineering, 2024.

[8] Ke, Y., Heartbeat electro-language: Exploring piezoelectric materials for real-time, energy- efficient cardiovascular monitoring. Cell Reports Physical Science, 2025.

[9] Zhao, C., Jia, C., Zhu, Y., Zhao, T. An Effective Self-Powered Piezoelectric Sensor for Monitoring Human Motion. Sensors, 2021.

[10] Park, J-H., Jang, D-G., Park, J. W., Youm, S-K. Wearable Sensing of In-Ear Pressure for Heart Rate Monitoring with a Piezoelectric Sensor. Sensors, 2015 (but very cited / influential).

[11] Tang, C., Liu, Z., Li, L. Mechanical Sensors for Cardiovascular Monitoring: From Battery-Powered to Self- Powered. Biosensors, 2022.

Keywords: Piezoelectric Energy Harvesting, Biomedical Signal Processing, Self-Powered Health Monitoring, IoT-Based Vital Sensing.

Citation: Dr. G. Kalpanadevi*, Dr. G. Kalpanadevi ( 2025), Piezoelectric based Vital Sign Monitoring System. , 12(4): 1-4

Received: 30/11/2025; Accepted: 12/12/2025;
Published: 13/12/2025

Edited by:

Mr.ERES JOURNALS

Reviewed by:

*Correspondence: Dr. G. Kalpanadevi, kalpanadevig.ece@krce.ac.in

Excellent Research in Engineeringand Science Publications

Research Article

Piezoelectric based Vital Sign Monitoring System

References

Excellent Research in Engineering
and Science Publications