Patent ID: 11960260
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Civil engineering (Other fields)
Classification: CPC G  E  Y | IPC E  G

Claim 12:
13. A system, comprising:
a motorized window treatment adapted to be positioned adjacent to a window;
at least one sensor; and
a processor in signal communication with the at least one sensor and the motorized window treatment, the processor configured to:
determine a solar elevation angle,
if the solar elevation angle is greater than a first threshold value, then set a second threshold value to a predetermined constant value,
if the solar elevation angle is less than the first threshold value, then determine the second threshold value as a function of the solar elevation angle,
operate the motorized window treatment in a first mode if a light level measured by the at least one sensor is less than the second threshold value, and
operate the motorized window treatment in a second mode if the light level measured by the least one sensor is greater than the second threshold value.