A Piezoelectric-triboelectric Heel Charger for Power-on-the-go
A heel charger that uses a level mechanism and a mechanical SSHI boosting circuit to provide electrical energy Background: Running out of battery power often results in life-threatening situations, whereas backup batteries are large, heavy and hazardous. In efforts to treat this unreliable aspect, proposed is an energy harvester. This is a clean...
Published: 11/22/2023
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Inventor(s): Ya Wang, Haili Liu
Keywords(s): mechanical-synchronized (M-SSHI), piezoelectric-triboelectric materials, switch harvesting on inductor Interface (M-SSHI), Technologies
Category(s): Campus > Stony Brook University, Technology Classifications > Clean Energy, Technology Classifications > Energy Conservation
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System and Method for Occupancy-Driven Register Airflow Control
Active monitoring of heating, ventilation and cooling (HVAC) systems for energy efficiency. Background: HVAC is the largest source of building energy consumption. Therefore, energy - and consequently money - can be saved by closing off air vents during certain hours of the day. These are so-called smart vents. However, these products do not have on-board...
Published: 11/22/2023
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Inventor(s): Ya Wang, Zhangjie Chen
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Category(s): Campus > Stony Brook University, Technology Classifications > Clean Energy, Technology Classifications > Wireless Technology
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Chopped Passive Infrared Sensor Apparatus and Method for Stationary and Moving Occupant Detection
Additions of multiple different elements to improve current PIR sensors. Background: Passive infrared (PIR) sensors are used in a variety of applications. They work by using the pyroelectric effect: a change based on the temperature modifies the positions of the atoms. However, because voltage is generated by pyroelectric materials, conventional PIR...
Published: 11/22/2023
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Inventor(s): Haili Liu, Ya Wang, Kevin Wang
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Category(s): Campus > Stony Brook University, Technology Classifications > Information Technology, Technology Classifications > Optics and Photonics
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