Title:

Energy-Harvesting Piezoelectric Monitoring System for Memory Loss Patients

This project investigates the feasibility of using piezoelectric energy harvesting to develop a self-powered door monitoring system for memory loss patients. The main goal is to reduce reliance on external power sources that require battery replacement, charging, plugging in, or remembering to turn the system on, which helps lower maintenance demands for primary caregivers, many of whom may also be elderly and experience memory challenges themselves. The system uses a footstep-activated pad with piezoelectric sensors that generate voltage when stepped on, allowing the signal to be converted and used to trigger a buzzer. Testing showed that the design was able to produce an immediate alert from a single footstep, with strong performance achieved using eight sensors and a 47 µF capacitor. These results demonstrate the potential of piezoelectric harvesting as a battery-free detection method for caregiver support applications. Future improvements have also been identified, including methods to increase buzzer volume and extend alert duration, which could make the system more practical and effective for real-world nighttime monitoring.

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