SLLA603 March   2023


  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Technical Overview
  5. 3Block Diagram
  6. 4Part Selection
  7. 5Stationary Target Detection
  8. 6Power Consumption
  9. 7Conclusion


Current occupancy detection solutions tend to employ complex systems such as mmWave radar to detect stationary objects. Passive Infrared (PIR) technology, while simpler, can reliably detect motion but struggles detecting stationary objects. This application note explores using a mirror to simulate motion to create a PIR-based system capable of occupancy detection.