A Wireless Wearable System for Closed-Loop Stress Detection and Mitigation
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Bindra, Prabhkirat Singh
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Abstract
This work presents the development and optimization of a novel wearable device designed for real-time stress detection and mitigation through electrical nerve stimulation. It features wireless data monitoring and control of stimulation parameters via a cross-platform app using Bluetooth Low Energy (BLE). System enhancements focus on hardware and firmware improvements, including wireless functionality and robust real-time measurement and processing of stress-related biomarkers. The device utilizes accelerometers and optical-sensor-LED-pairs for continuous measurement of photoplethysmogram (PPG) and acceleration data, providing insights into stress levels of a user. The thesis documents the design process, decisions, and optimizations related to the device’s hardware, firmware, and supporting software, along with characterization of the completed prototype and bench-top testing data demonstrating its functionality.
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2024-05-17
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Thesis