Illumination system and method that presents a natural show to emulate daylight conditions with smoothing dimcurve modification thereof

A method of operating a light-emitting diode (LED) lamp, the method comprising:

• determining, by LED lamp control circuitry, a time-of-day using a clock signal generated by clocking circuitry operatively coupled to the LED lamp control circuitry;
• autonomously changing, by LED lamp control circuitry, respective drive currents provided by LED driver circuitry to each of a plurality of LED strings to cause the output brightness and the output color temperature of the LED lamp to autonomously follow a first dimcurve in temporal synchronization with at least one other LED lamp, the temporal synchronization based on the determined time-of-day and a first dimcurve included in a plurality of dimcurves stored in memory circuitry communicatively coupled. to the LED lamp control circuitry;
• and
• responsive to receipt of a request to transition the output brightness and the output color temperature from the first dimcurve to a second dimcurve included in the plurality of dimcurves:
• determining, by the LED lamp control circuitry, a number of scenes over which the transition from the first dimcurve to the second dimcurve is to occur, wherein the number of scenes is a function of the difference in at least one of the output brightness and the output color temperature between the first dimcurve and the second dimcurve;
• temporally synchronizing the time-of-day with the at least one other LED lamp;
• and
• causing the LED driver circuitry to provide respective drive currents to each of the plurality of LED strings to transition the LED lamp from the output brightness and the output color temperature corresponding to the first dimcurve to the output brightness and the output color temperature corresponding to the second dimcurve over the determined number of scenes.

A non-transitory, machine-readable, storage device that includes machine-readable instructions that, when executed by light-emitting diode (LED) lamp control circuitry operably coupled to an LED lamp, cause the LED lamp control circuitry to:

• determine a time-of-day using a clock signal generated by clocking circuitry operatively coupled to the LED lamp control circuitry;
• autonomously change respective drive currents provided by LED driver circuitry to each of a plurality of LED strings to cause the output brightness and the output color temperature of the LED lamp to autonomously follow a first dimcurve in temporal synchronization with at least one other LED lamp, the temporal synchronization based on the determined time-of-day and the first dimcurve included in a plurality of dimcurves stored in memory circuitry communicatively coupled to the LED lamp control circuitry;
• and
• responsive to receipt of a request to transition the output brightness and the output color temperature from the first dimcurve to a second dimcurve included in the plurality of dimcurves:
• determine a number of scenes over which the transition from the first dimcurve to the second dimcurve is to occur, wherein the number of scenes is a function of the difference in at least one of the output brightness and the output color temperature between the first dimcurve and the second dimcurve;
• temporally synchronize the time-of-day with the at least one other LED lamp;
• and
• cause the LED driver circuitry to provide respective drive currents to each of the plurality of LED strings to transition the LED lamp from the output brightness and the output color temperature corresponding to the first dimcurve to the output brightness and the output color temperature corresponding to the second dimcurve over the determined number of scenes.