US Patent No. 10,602,587

LOAD CONTROL SYSTEM HAVING A VISIBLE LIGHT SENSOR


Patent No. 10,602,587
Issue Date March 24, 2020
Title Load Control System Having A Visible Light Sensor
Inventorship James P. Steiner, Royersford, PA (US)
Assignee Lutron Technology Company LLC, Coopersburg, PA (US)

Claim of US Patent No. 10,602,587

1. A sensor comprising:a visible light sensing circuit configured to record an image of a space;
a communication circuit configured to transmit and receive digital messages;
a low-energy occupancy sensing circuit configured to detect occupancy conditions in the space; and
a control circuit configured to disable the visible light sensing circuit when the space is vacant, the control circuit configured to detect an occupancy condition in the space in response to the low-energy occupancy sensing circuit and to subsequently enable the visible light sensing circuit, wherein the control circuit is configured to transmit a digital message indicating the occupancy condition via the communication circuit after detecting the occupancy condition in the space in response to the low-energy occupancy sensing circuit, the control circuit further configured to transmit a second digital message indicating a vacancy condition via the communication circuit after detecting the vacancy condition in the space in response to the visible light sensing circuit.