Self-Powered Triboelectricity-Driven Multiple-Input-Single-Output Occupancy Detection System Using a Triboelectric
1Department of Electronics and Information Convergence Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin 17104, Republic of Korea.
Polymers
|January 11, 2025
Summary
A novel self-powered sensor using an all-fiber triboelectric nanogenerator (AFT-OGH) offers a sustainable solution for energy management. This technology enables real-time wireless communication and occupancy detection for smart energy systems.
Area of Science:
- Materials Science
- Energy Harvesting
- Sensor Technology
Background:
- The growing energy crisis, driven by population growth and IoT expansion, necessitates advanced energy management.
- Conventional sensor-based energy management systems require additional power for sensor operation, creating an energy demand.
- Developing self-powered sensors is crucial for efficient and sustainable energy management strategies.
Purpose of the Study:
- To fabricate an all-fiber-based triboelectric nanogenerator (AFT-OGH) for self-powered sensing applications.
- To demonstrate real-time wireless communication and occupancy detection using the AFT-OGH.
- To introduce a triboelectricity-driven multiple-input-single-output (T-MISO) system for smart energy management.
Main Methods:
- Fabrication of an all-fiber triboelectric nanogenerator (AFT-OGH) incorporating O2 plasma treatment and specific solution coatings.
- Integration of the AFT-OGH with inductors for self-powered real-time wireless communication.
- Development of an AFT-OGH-driven self-powered T-MISO occupancy detection system (AS-MODS) with a unique control algorithm for LEDs.
Main Results:
- The AFT-OGH achieved a high electrical power density of 0.35 W/m² with excellent stability.
- Self-powered wireless communication was successfully implemented over a distance of 180 cm.
- The AS-MODS demonstrated effective occupancy detection and LED control using triboelectric signals.
Conclusions:
- The developed AFT-OGH serves as a high-performance, self-powered sensor.
- The T-MISO system represents a novel approach to triboelectricity-driven sensing and communication.
- The AS-MODS shows significant potential as a smart energy management system for controlling energy consumption.
Related Concept Videos
01:10Electrical Energy
1.2K
Using electric appliances for a longer period of time consumes more electrical energy and results in a higher electric bill. The energy produced by the transfer of electrons from one point to another is known as electrical energy. If power is delivered at a constant rate, the electrical energy can be defined as the product of power used by the device for a period of time. The energy unit on electric bills is the kilowatt-hour, where one kilowatt-hour is equivalent to 3.6 × 106 joules.
1.2K
01:10Energy Stored in Capacitors
433
A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
433
01:12Energy Stored in a Capacitor
3.6K
When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.
3.6K
01:27Induced Electric Fields: Applications
1.6K
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
1.6K
02:26Photoelectric Effect
29.3K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
29.3K
01:11P-N junction
460
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
460