Image processing occupancy sensor

Title: Image processing occupancy sensor

A system and method of detecting occupants in a building automation system environment using image based occupancy detection and position determinations. In one example, the system includes an image processing occupancy sensor that detects the number and position of occupants within a space that has controllable building elements such as lighting and ventilation diffusers. Based on the position and location of the occupants, the system can finely control the elements to optimize conditions for the occupants, optimize energy usage, among other advantages.

Inventors:: Brackney, Larry J.

Issue Date:: 2016-09-27

OSTI Identifier:: 1326791

Assignee:: Alliance for Sustainable Energy, LLC (Golden, CO) NREL

Patent Number(s):: 9,456,183

Application Number:: 12/947,045

Contract Number:: AC36-08GO28308

Resource Relation:: Patent File Date: 2010 Nov 16

Research Org:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 47 OTHER INSTRUMENTATION

Full Text
View Full Text

Have feedback or suggestions for a way to improve these results? !

Save / Share this Record no
Export Metadata
- Endnote
- RIS
- Excel
- CSV
- XML
Send to Email

Send to Email

Email address:

Content:

Works referenced in this record:

Building occupancy detection through sensor belief networks
journal, September 2006

Dodier, Robert H.; Henze, Gregor P.; Tiller, Dale K.
Energy and Buildings, Vol. 38, Issue 9, p. 1033-1043
DOI: 10.1016/j.enbuild.2005.12.001

Similar Records

Similar records in DOepatents and OSTI.GOV collections:

Image-based occupancy sensor

Patent Polese, Luigi Gentile ; Brackney, Larry

An image-based occupancy sensor includes a motion detection module that receives and processes an image signal to generate a motion detection signal, a people detection module that receives the image signal and processes the image signal to generate a people detection signal, a face detection module that receives the image signal and processes the image signal to generate a face detection signal, and a sensor integration module that receives the motion detection signal from the motion detection module, receives the people detection signal from the people detection module, receives the face detection signal from the face detection module, and generatesmore »« less
Full Text Available May 2015
Image processing system and method for recognizing and removing shadows from the image of a monitored scene

Patent Osbourn, Gordon C.

The shadow contrast sensitivity of the human vision system is simulated by configuring information obtained from an image sensor so that the information may be evaluated with multiple pixel widths in order to produce a machine vision system able to distinguish between shadow edges and abrupt object edges. A second difference of the image intensity for each line of the image is developed and this second difference is used to screen out high frequency noise contributions from the final edge detection signals. These edge detection signals are constructed from first differences of the image intensity where the screening conditions aremore »« less
Full Text Available January 1996
Method and apparatus for signal processing in a sensor system for use in spectroscopy

Patent O'Connor, Paul ; DeGeronimo, Gianluigi ; Grosholz, Joseph

A method for processing pulses arriving randomly in time on at least one channel using multiple peak detectors includes asynchronously selecting a non-busy peak detector (PD) in response to a pulse-generated trigger signal, connecting the channel to the selected PD in response to the trigger signal, and detecting a pulse peak amplitude. Amplitude and time of arrival data are output in first-in first-out (FIFO) sequence. An apparatus includes trigger comparators to generate the trigger signal for the pulse-receiving channel, PDs, a switch for connecting the channel to the selected PD, and logic circuitry which maintains the write pointer. Also included,more »« less
Full Text Available May 2008
Method and apparatus for signal processing in a sensor system for use in spectroscopy

Patent O'Connor, Paul ; DeGeronimo, Gianluigi ; Grosholz, Joseph

A method for processing pulses arriving randomly in time on at least one channel using multiple peak detectors includes asynchronously selecting a non-busy peak detector (PD) in response to a pulse-generated trigger signal, connecting the channel to the selected PD in response to the trigger signal, and detecting a pulse peak amplitude. Amplitude and time of arrival data are output in first-in first-out (FIFO) sequence. An apparatus includes trigger comparators to generate the trigger signal for the pulse-receiving channel, PDs, a switch for connecting the channel to the selected PD, and logic circuitry which maintains the write pointer. Also included,more »« less
Full Text Available May 2008
Extreme temperature robust optical sensor designs and fault-tolerant signal processing

Patent Riza, Nabeel Agha ; Perez, Frank

Silicon Carbide (SiC) probe designs for extreme temperature and pressure sensing uses a single crystal SiC optical chip encased in a sintered SiC material probe. The SiC chip may be protected for high temperature only use or exposed for both temperature and pressure sensing. Hybrid signal processing techniques allow fault-tolerant extreme temperature sensing. Wavelength peak-to-peak (or null-to-null) collective spectrum spread measurement to detect wavelength peak/null shift measurement forms a coarse-fine temperature measurement using broadband spectrum monitoring. The SiC probe frontend acts as a stable emissivity Black-body radiator and monitoring the shift in radiation spectrum enables a pyrometer. This application combinesmore »« less
Full Text Available January 2012