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Method and Apparatus for Occupancy-driven SMA-actuated Registers

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: 7/6/2020   |   Inventor(s): Ya Wang, Zhangjie Chen
Category(s): Clean Energy, Wireless Technology, Campus > Stony Brook University

Chopped PIR sensor 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: 7/5/2020   |   Inventor(s): Haili Liu, Ya Wang, Kevin Wang
Category(s): Information Technology, Optics and Photonics, Campus > Stony Brook University

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