| CPC H05B 47/155 (2020.01) [H05B 45/325 (2020.01); H05B 47/16 (2020.01); H05B 47/19 (2020.01)] | 10 Claims |
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1. A multi-modulation string light, comprising:
a first wire;
a second wire;
a control module, configured to selectively combine a communication command signal, a reset signal, and a drive signal to generate a composite signal and output the composite signal to the first wire and the second wire;
a first light emitting diode (LED), connected in parallel between the first wire and the second wire, and configured to generate first light based on the composite signal; and
a light emitting component, connected in parallel between the first wire and the second wire, wherein the light emitting component comprises:
an LED set, configured to generate modulated light when driven;
a first control chip, configured to drive, based on the communication command signal, the LED set to perform a light emission mode; and
a second control chip, configured to drive the LED set based on the drive signal and preset control timing corresponding to the light emission mode, and reset the preset control timing in response to a low level of the communication command signal or in response to the reset signal,
wherein a plurality of low levels of the composite signal within each second meet a signal condition, and the signal condition comprises:
a total time length of the low levels does not exceed a first time threshold, and a quantity of the low levels is not less than 10; or
the quantity of the low levels is less than 10, a time length of each of the low levels is not greater than a second time threshold, and the first time threshold is greater than the second time threshold.
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