Occupancy and Motion Detectors

  • Jacob Fraden


September 11 has changed the way people think about airport, aviation, and security in general. The threat is expanding interest in more reliable systems to detect presence of people within the protected perimeters. The occupancy sensors detect the presence of people (and sometimes animals) in a monitored area. Motion detectors respond only to moving objects. A distinction between the two is that the occupancy sensors produce signals whenever an object is stationary or not, while the motion detectors are selectively sensitive to moving objects. The applications of these sensors include security, surveillance, energy management (electric lights control ), personal safety, friendly home appliances, point-of-sale advertisements, interactive toys, novelty products, etc.


Light Emit Diode Motion Detector Doppler Frequency Fresnel Lens Pyroelectric Sensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Blumenkrantz S (1989) Personal and organizational security handbook. Government Data Publications, Washington, DCGoogle Scholar
  2. 2.
    Ryser P, Pfister G (1991) Optical fire and security technology: sensor principles and detection intelligence. In: Transducers’91. International conference on solid-state sensors and actuators. Digest of technical papers, pp 579–583, ©IEEEGoogle Scholar
  3. 3.
    Fraden J (1991) Apparatus and method for detecting movement of an object. US Patent 5,019,804, 28 MayGoogle Scholar
  4. 4.
    Fraden J (1984) Motion discontinuance detection system and method. US Patent 4,450,351, 22 MayGoogle Scholar
  5. 5.
    Fitz Gerald AS (1932) Photo-electric system. US Patent 2,016,032, 4 Feb 1932Google Scholar
  6. 6.
    Fraden J (1984) Toy including motion-detecting means for activating same. US Patent 4,479,329, 30 OctGoogle Scholar
  7. 7.
    Fraden J (1990) Active infrared motion detector and method for detecting movement. US Patent 4,896,039, 23 JanGoogle Scholar
  8. 8.
    Fraden J (1992) Active far infrared detectors. In: Temperature. Its measurement and control in science and industry, vol 6, part 2. AIP, New York, pp 831–836Google Scholar
  9. 9.
    Parsons NE et al (1999) Object-sensor-based flow-control system employing fiber-optic signal transmission. US Patent 5,984,262, 16 NovGoogle Scholar
  10. 10.
    Parsons NE et al (2003) Automatic flow controller employing energy-conservation mode. US Patent 6,619,614, 16 SeptGoogle Scholar
  11. 11.
    Parsons NE et al (2008) Passive sensors for automatic faucets and bathroom flushers. US Patent 7,396,000, 8 JulyGoogle Scholar
  12. 12.
    Fraden J (2007) Alarm system with air pressure detector. US Patent Publication US 2008/0055079, 31 AugGoogle Scholar
  13. 13.
    Fraden J (2009) Detector of low levels of gas pressure and flow. US Patent 7,490,512, 17 FebGoogle Scholar
  14. 14.
    Fraden J (1988) Motion detector. US Patent 4,769,545, 6 SeptGoogle Scholar
  15. 15.
    Long DJ (1975) Occupancy detector apparatus for automotive safety system. US Patent 3,898,472, 5 AugGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.San DiegoUSA

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