Control method for tintable windows
AssigneeView, Inc.
InventorStephen Clark Brown
Life of this patent
Estimating the term…
Abstract
A method of controlling tint of a tintable window to account for occupant comfort in a room of a building. The tintable window is between the interior and exterior of the building. The method predicts a tint level for the tintable window at a future time based on a penetration depth of direct sunlight through the tintable window into the room at the future time and space type in the room. The method also provides instructions over a network to transition tint of the tintable window to the tint level.
Claims26
A method of controlling tint of one or more tintable windows to account for occupancy comfort in a room of a building, the method comprising:
- determining an intersection between an occupancy region and a three-dimensional projection of light through the one or more tintable windows;
- using the intersection to determine a tint level of the one or more tintable windows;
- and
- providing instructions to transition tint of the one or more tintable windows to the determined tint level.
A controller for controlling tint of one or more tintable windows to account for occupancy comfort in a room, the controller comprising a processor configured to:
- determine an intersection of a three-dimensional projection of light through the one or more tintable windows with a plane of interest;
- determine an overlap of the intersection with an occupancy region;
- use the determined overlap to determine a tint level of the one or more tintable windows;
- and
- provide instructions to transition tint of the one or more tintable windows to the determined tint level.
A method of controlling tint of one or more tintable windows to account for occupancy comfort in a room of a building, the method comprising:
- determining whether one or more timers is set at the current time;
- and
- if one or more timers is not set, determining a filtered tint level;
- and
- providing instructions to transition tint of the one or more tintable windows to the filtered tint level.
Dependencies are inferred from the claim text.