System and method to group light sensors for controlling illumination uniformly based on ambient light
AssigneeenLighted, Inc.
InventorsReid Senescu, Tanuj Mohan, Norman Farquhar, Jason Kurashige, Sreedhar Kamishetti
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Abstract
There is described a building automation system for controlling illumination uniformly based on ambient light. Light sensors are distributed within an environment and detect ambient light levels of the environment. An energy manager receives the ambient light levels from the light sensors and determines a group light level based on the ambient light levels. Light sources are distributed within the environment and provide illumination uniformly based on the group light level.
Claims14
A building automation system for controlling illumination uniformly based on ambient light comprising:
- a plurality of light sensors distributed within an environment, the plurality of light sensors detecting a plurality of ambient light levels of the environment;
- an energy manager receiving the plurality of ambient light levels from the plurality of light sensors and determining a group light level based on the plurality of ambient light levels, wherein the energy manager identifies a plurality of message window signals corresponding to the plurality of ambient light levels within a message window represented by a time period in seconds and determines the group light level based on ambient light levels within the message window, wherein the message window is determined based on stable periods of group targets;
- and
- a plurality of light sources distributed within the environment, the plurality of light sources providing illumination uniformly based on the group light level by setting light levels of at least some of the plurality of light sources to be brighter or less bright than their individual targets and, on average, the light levels of the plurality of light sources meet the group light level.
A method of a building automation system for controlling illumination uniformly based on ambient light, the method comprising:
- detecting a plurality of ambient light levels at a plurality of light sensors;
- determining a group light level at an energy manager based on the plurality of ambient light levels, wherein determining the group light level includes:
- identifying a plurality of message window signals corresponding to the plurality of ambient light levels within a message window represented by a time period in seconds, wherein the message window is determined based on stable periods of group targets;
- and
- determining the group light level based on ambient light levels within the message window;
- and
- adjusting illumination uniformly at a plurality of light sources based on the group light level by setting light levels of at least some of the plurality of light sources to be brighter or less bright than their individual targets and, on average, the light levels of the plurality of light sources meet the group light level.
Dependencies are inferred from the claim text.