Self-Powered Triboelectric Nanogenerator for Security Applications.
Prabavathi Munirathinam1, Arunkumar Chandrasekhar1
1Nanosensors and Nanoenergy Lab, Sensor Systems Lab, Department of Sensors and Biomedical Technology, School of Electronic Engineering, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
Micromachines
|March 29, 2023
Summary
This study presents a self-powered triboelectric nanogenerator (TENG) drawer sensor to detect unauthorized access, preventing hotel room theft. The device alerts guests and owners, enhancing security and peace of mind.
Area of Science:
- Materials Science
- Electrical Engineering
- Sensor Technology
Background:
- Hotel room theft poses significant psychological and economic risks to guests.
- Existing security measures may not adequately prevent unauthorized access to personal belongings.
- There is a need for innovative, low-power security solutions for transient accommodations.
Purpose of the Study:
- To develop and evaluate a self-powered triboelectric nanogenerator (TENG) as a drawer sensor for hotel room security.
- To assess the electrical performance of the TENG using different sliding materials.
- To integrate the TENG with microcontrollers for real-time theft alerts.
Main Methods:
- A sliding-mode triboelectric nanogenerator (TENG) was designed and attached to a hotel room drawer.
- The TENG operates by converting the lateral sliding motion of the drawer into electrical energy.
- Electrical performance was analyzed using polyethylene terephthalate (PET), paper, and nitrile as triboelectric materials, with outputs monitored via Arduino and NodeMCU.
Main Results:
- The self-powered TENG sensor generated approximately 125 V and 12.5 µA during drawer operation.
- Different sliding materials exhibited varying electrical outputs, with PET, paper, and nitrile analyzed.
- Successful integration with Arduino and NodeMCU enabled timely notifications upon detecting drawer movement.
Conclusions:
- The developed TENG-based drawer sensor offers a viable, self-powered solution for detecting unauthorized access in hotel rooms.
- The system provides a practical method for alerting guests and hotel management to potential theft incidents.
- This technology demonstrates potential for enhancing guest security and can be further optimized with alternative materials.
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