Technology - Chopped Passive Infrared Sensor Apparatus and Method for Stationary and Moving Occupant Detection

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 sensors are unable to detect stationary objects.

Technology Overview:

In order to detect stationary objects, new sensors would include a sensing element and a Fresnel lens disposed over a surface of a sensing element. Also included is an optical chopper, thus controlled sensing and control circuitry. The new additions to the sensors will allow stationary objects to be detected.

Header image is purely illustrative. Source: Wikimedia/CHG, https://commons.wikimedia.org/wiki/File:Motion_detector.jpg, public domain.

Advantages:

-Able to detect more objects -More accurate sensing with fewer discrepancies

Applications:

-Detection -Tracking personal identification -Lighting systems -HVAC

Intellectual Property Summary:

Patent application submitted

Stage of Development:

[WO2018/132546](https://patentscope2.wipo.int/search/en/detail.jsf?docId=WO2018132546)

Licensing Status:

Available for licensing

Licensing Potential:

Licensing,Commercial partner,Development partner

Additional Information:

Direct Link:

https://suny.technologypublisher.com/tech/Chopped_Passive_Infrared_Sensor_App aratus_and_Method_for_Stationary_and_Moving_Occupant_Detection