Patent ID: 8901825

Claim:
A method of operating an illumination system including at least one light source, the method comprising: determining by a controller, an expected ambient environment illumination condition for a current location at a defined date and time; comparing by the controller, an actual ambient environment illumination condition detected in the ambient environment at the current location with the determined expected ambient environment illumination condition; in response to determining an existence of a difference between the actual ambient environment illumination condition and the determined expected ambient environment illumination condition, producing by the controller, at least one of a notification or a record indicative of an aberrant event; and receiving a location signal by the controller, the location signal indicative of the current location of the illumination system, wherein determining by a controller an expected ambient environment illumination condition includes determining at least one of an expected time of dusk or an expected time of dawn for the current location based at least in part on the current location indicated by the location signal.