Wall module with multi-pixel passive infrared sensor
AssigneeHoneywell International Inc.
InventorsOndrej Ficner, David Zeman, Cory Grabinger, William Bray, Ivo Chromy
Life of this patent
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Abstract
A wall module of a building control system is described that is configured to capture a thermal image using a passive infrared (PIR) sensor four or more individually readable pixels arranged in two or more rows and two or more columns. Based on the thermal image, the wall module may, for example, automatically activate and/or deactivate a backlight of a display of the wall module
Claims20
A wall module of a building control system, comprising:
- a controller;
- a display coupled to the controller, the display having a backlight;
- a multi-pixel passive infrared (PIR) sensor coupled to the controller, the multi-pixel passive PIR sensor including four or more individually readable pixels arranged in two or more rows and two or more columns, the multi-pixel passive PIR sensor having a field of view;
- and
- wherein the multi-pixel passive PIR sensor is configured to acquire a thermal image via the four or more individually readable pixels and the controller is configured to change an intensity of the backlight of the display based on the acquired thermal image.
A wall module of a building control system, comprising:
- a controller;
- a display coupled to the controller, the display having a first mode with no or a lower brightness level and a second mode having a higher brightness level;
- a multi-pixel passive infrared (PIR) sensor coupled to the controller, the multi-pixel passive PIR sensor including four or more individually readable pixels arranged in two or more rows and two or more columns for acquiring a thermal image of objects in the vicinity of the wall module;
- and
- wherein the controller is configured to analyze the thermal image to determine if a human is present and in the vicinity of the wall module, and if a human is present and in the vicinity of the wall module, the controller is configured to cause the display to be in the second mode having the higher brightness level.
A method for automatically controlling a power level of a display of a wall module of a Building Automation system, the method comprising:
- capturing a thermal image of a room with a multi-pixel passive infrared (PIR) sensor that includes four or more individually readable pixels arranged in two or more rows and two or more columns;
- analyzing the thermal image to determine if a user is present within the captured image;
- and
- wherein if a user is present within the captured image, determining whether the user is likely to interact with the wall module or not, and if so, placing the display in a higher power mode, and if not, placing the display in a lower power mode.
Dependencies are inferred from the claim text.