LAMP CONTROL SIGNAL TRANSMISSION METHOD AND SYSTEM BASED ON LEVEL SAMPLING

原文（中国語）

A lamp control signal transmission method includes level states of R, G and B lamp control signals in a four-wire system being synchronously sampled within a preset sampling period, a corresponding coded signal comprising a signal header and three bits of coded data corresponding to R, G and B control information carried by the level states of the three lamp control signals being generated, and then, the coded signal being superposed onto integrated power of the four-wire system to form composite power that is transmitted by a two-wire system to drive a load. Sampling lamp control signals within a complete period is not needed in the process of transforming a four-wire lamp system into a two-wire lamp system, the coded signal can be transmitted approximately synchronously at a low delay, and power transmission is guaranteed during two-wire signal transmission.