ViPSN 2.0: A Reconfigurable Battery-free IoT Platform for Vibration Energy Harvesting
🤖 AI Summary
To address critical challenges in batteryless IoT systems—namely, unstable power supply, intermittent energy availability, and poor task adaptability in vibration-based energy harvesting—this paper proposes a modular, reconfigurable hardware platform. The platform features three key innovations: (1) a standardized hot-swappable interface enabling seamless integration of piezoelectric, electromagnetic, and triboelectric energy harvesters; (2) an energy-aware hierarchical power management framework that dynamically adapts to light-load, heavy-load, and complex sensing tasks; and (3) integrated ultra-low-power wake-up circuitry and transient-energy-driven communication modules supporting wireless beacons, LoRa long-range transmission, and intermittent imaging. Experimental evaluation demonstrates stable operation under realistic weak-vibration scenarios—including fingertip pressing and ocean wave motion—significantly enhancing system practicality and robustness in energy-constrained environments.
Application Category
📝 Abstract
Vibration energy harvesting is a promising solution for powering battery-free IoT systems; however, the instability of ambient vibrations presents significant challenges, such as limited harvested energy, intermittent power supply, and poor adaptability to various applications. To address these challenges, this paper proposes ViPSN2.0, a modular and reconfigurable IoT platform that supports multiple vibration energy harvesters (piezoelectric, electromagnetic, and triboelectric) and accommodates sensing tasks with varying application requirements through standardized hot-swappable interfaces. ViPSN~2.0 incorporates an energy-indication power management framework tailored to various application demands, including light-duty discrete sampling, heavy-duty high-power sensing, and complex-duty streaming tasks, thereby effectively managing fluctuating energy availability. The platform's versatility and robustness are validated through three representative applications: ViPSN-Beacon, enabling ultra-low-power wireless beacon transmission from a single transient fingertip press; ViPSN-LoRa, supporting high-power, long-range wireless communication powered by wave vibrations in actual marine environments; and ViPSN-Cam, enabling intermittent image capture and wireless transfer. Experimental results demonstrate that ViPSN~2.0 can reliably meet a wide range of requirements in practical battery-free IoT deployments under energy-constrained conditions.
Problem
Research questions and friction points this paper is trying to address.
Addresses instability in vibration energy harvesting for IoT
Supports multiple harvesters and diverse sensing tasks
Manages fluctuating energy for varied application demands
Innovation
Methods, ideas, or system contributions that make the work stand out.
Modular platform supports multiple vibration harvesters
Energy-indication power management for varying demands
Standardized hot-swappable interfaces enhance adaptability
🔎 Similar Papers
No similar papers found.
