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Wireless Energy Transfer Powered Wireless Sensor Node for Green IoT: Design, Implementation and Evaluation
Janne Janhunen1, Konstantin Mikhaylov2, Juha Petäjäjärvi3
1Solmu Technologies, 90620 Oulu, Finland. janne.janhunen@oulu.fi.
Sensors (Basel, Switzerland)
|January 2, 2019
Summary
This study introduces a reliable system for Internet of Things (IoT) devices using wireless power transfer (WPT) over radio frequency (RF) channels. The developed methodology enables practical, energy-neutral IoT applications, enhancing device longevity and performance in industrial settings.
Area of Science:
- Electrical Engineering
- Embedded Systems
- Wireless Communication
Background:
- The proliferation of Internet of Things (IoT) devices necessitates sustainable power solutions.
- Energy-neutral systems that harvest environmental energy are crucial for IoT sustainability.
- Low reliability remains a significant challenge for energy-neutral IoT systems.
Purpose of the Study:
- To develop and validate a methodology for creating reliable IoT applications powered exclusively by radio frequency (RF) wireless power transfer (WPT).
- To address the reliability issues in energy-neutral systems by utilizing RF WPT.
- To demonstrate a practical, step-by-step approach for implementing RF WPT in real-world IoT scenarios.
Main Methods:
- Development of a novel methodology for designing and implementing RF WPT systems for IoT.
- Selection and evaluation of key components considering trade-offs for WPT system design.
- Instrumentation and comprehensive evaluation of a complete WPT-powered IoT system.
Main Results:
- Successful development and validation of a WPT-powered IoT solution for sensing temperature and angular velocity in a rotating industrial environment.
- Demonstration of a practical methodology for RF WPT application development.
- Quantification of practical interrelations and effects specific to real-life WPT applications.
Conclusions:
- The proposed methodology enables the development of reliable, energy-neutral IoT systems using RF WPT.
- The practical example validates the system's capability to meet design goals and requirements for industrial applications.
- The findings offer valuable insights for both practitioners and analysts in the field of WPT and IoT.
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