Patent ID: 11885672
Assignee: LUTRON TECHNOLOGY COMPANY LLC
Field: Measurement (Instruments)
Classification: CPC G  H  Y | IPC G  H

Claim 0:
1. A load system controller, comprising:
control circuitry to:
cause a periodic cycling of a communicatively coupled photosensor from a STANDBY state to an ACTIVE state and back to the STANDBY state at a first interval;
receive, from a communicatively coupled photosensor, a value representative of a measured ambient light level in a space responsive to transition of the photosensor to the ACTIVE state;
cause a storage of the value representative of the measured ambient light level in the space in communicatively coupled memory circuitry;
determine a rate of change of the ambient light level using at least two of the stored values representative of the measured ambient light level in the space
determine whether the calculated rate of change of the ambient light level in the space is greater than a first threshold value;
generate a control signal output to adjust one or more electrical load control devices in the space responsive to the determination that the calculated rate of change of the ambient light level in the space is greater than the first threshold value, wherein each of the one or more electrical load control devices operatively couples to one or more electrical load devices that contribute to the ambient light level in the space;
cause a transition of a communicatively coupled RF transceiver circuitry from a STANDBY state to an ACTIVE state responsive to the generation of the control signal output;
cause a communication of the control signal output to the one or more electrical load control devices; and
cause a transition the RF transceiver circuitry from the ACTIVE state to the STANDBY state responsive to the communication of the control signal output to the one or more electrical load control devices.