Infrared presence detector system

Patent metadata

Field	Value
Publication number	US-2023103541-A1
Application number	US-202218079089-A
Country	US
Kind code	A1
Filing date	Dec 12, 2022
Priority date	Jan 11, 2016
Publication date	Apr 6, 2023
Grant date	—

Abstract

An infrared presence detector system includes a focal plane array and a processor coupled to the focal plane array. The array includes a first radiant energy sensor and a plurality of second radiant energy sensors, with the first and second radiant energy sensors configured to convert incident radiation into an electrical signal. The processor is coupled to the focal plane array, and is configured to control the focal plane array in a sleep mode, wherein the first radiant energy sensor is energized and the plurality of second radiant energy sensors are de-energized, and an active mode, wherein at least the plurality of second radiant energy sensors are energized when the first radiant energy sensor detects a presence.

First claim

1 - 10 . (canceled)

11 . A method of operating an infrared presence detector comprising:
operating at least one radiant energy sensor in an enabled mode when monitoring a scene; sustaining at least a first portion of a plurality of radiant energy sensors of a focal plane array in a disabled mode when the at least one radiant energy sensor is monitoring the scene; detecting a presence by the at least one radiant energy sensor; and operating at least the first portion of the plurality of radiant energy sensors in the enabled mode.

12 . The method set forth in claim 11 , wherein the at least one radiant energy sensor is a second portion of the plurality of radiant energy sensors of the focal plane array.

13 . The method set forth in claim 11 comprising:
applying wireless communication.

14 . The method set forth in claim 12 , wherein a first lens is configured to focus a radiated energy associated with at least a portion of the scene upon the second portion of the plurality of radiant energy sensors.

15 . The method set forth in claim 14 , wherein a second lens is configured to focus the radiated energy associated with the entire scene upon at least the first portion of the plurality of radiant energy sensors.

16 . The method set forth in claim 11 , wherein a segment of a radiated energy associated with the entire scene is diverted by a beamsplitter onto the at least one radiant energy sensor.

17 . The method set forth in claim 16 , wherein a remaining segment of the radiated energy is focused onto the first portion of the plurality of radiant energy sensors.

18 . The method set forth in claim 11 , wherein the presence is detected by a change over time of the radiated energy.

19 . The method set forth in claim 11 further comprising:
adjusting power consumption of a plurality of detector components to control at least one of instantaneous power consumption and average power consumption.

20 . The method set forth in claim 11 , wherein the at least one radiant energy sensor comprises a first radiant energy sensor and a second radiant energy sensor and the presence is detected by a difference in incident radiation between the first and second radiant energy sensors.

Assignees

• Carrier Corp

Inventors

• Finn Alan Matthew
• Xiong Ziyou
• Soldner Nicholas Charles
• Mantese Joseph V

Classifications

• G01J5/0879

  Optical elements not provided otherwise, e.g. optical manifolds, holograms, cubic beamsplitters, non-dispersive prisms or particular coatings · CPC title

• G01J5/026

  Control of working procedures of a pyrometer, other than calibration; Bandwidth calculation; Gain control · CPC title

• G01J5/0025 Primary

  Living bodies (ear thermometers G01J5/0011; detecting, measuring or recording for diagnostic purposes A61B5/00) · CPC title

• G01J5/0806

  Focusing or collimating elements, e.g. lenses or concave mirrors · CPC title

• G01J2005/0077

  Imaging · CPC title