US 12,324,066 B2
Control method for lamp system based on RGB wiring arrangement
Ziqin Guo, Guangzhou (CN); and Bo Liang, Guangzhou (CN)
Assigned to Guangzhou Rising Dragon Recreation Industrial Co., Ltd., Guangzhou (CN)
Filed by Guangzhou Rising Dragon Recreation Industrial Co., Ltd., Guangzhou (CN)
Filed on Sep. 14, 2023, as Appl. No. 18/466,857.
Claims priority of application No. 202211252446.4 (CN), filed on Oct. 13, 2022.
Prior Publication US 2024/0130017 A1, Apr. 18, 2024
Int. Cl. H05B 45/325 (2020.01); H05B 45/10 (2020.01); H05B 45/34 (2020.01)
CPC H05B 45/325 (2020.01) [H05B 45/10 (2020.01); H05B 45/34 (2020.01)] 10 Claims
OG exemplary drawing
 
1. A control method for a lamp system based on RGB wiring arrangement, wherein the lamp system comprises a lighting control module and a plurality of lamps, each of the lamps has a specific ID and comprises a decoding module and at least one coloured light emitting module; a connecting line A, a connecting line B and a positive power connecting line are disposed between the lamps and the lighting control module, a first switch device is disposed on the connecting line A, a second switch device is disposed on the connecting line B, a first load resistor is disposed between the connecting line A and the positive power connecting line, a second load resistor is disposed between the connecting line B and the positive power connecting line, and the connecting line B is grounded, the control method comprising:
the lighting control module outputting a first PWM signal through the connecting line A and outputting a second PWM signal through the connecting line B; wherein, the first PWM signal is used for controlling an on/off time interval of the first switch device on the connecting line A to generate a continuous variable level at two terminals of the first load resistor on the connecting line A, the continuous variable level forms a digital signal, and the second PWM signal is used for controlling the second switch device on the connecting line B to be normally-off to thereby provide a stable power supply;
the lamps acquiring corresponding control information from the digital signal through ID matching; and
after the control information is decoded by the respective decoding modules, currents transmitted to the coloured light emitting modules being regulated to control the coloured light emitting modules.