Thyristor trigger signal light intensity on-line monitoring device and valve control system adopting same

The embodiment of the invention relates to a thyristor trigger signal light intensity on-line monitoring device and a valve control system adopting the same. The thyristor trigger signal light intensity on-line monitoring device comprises a light receiving and light intensity monitoring module, a logic processing module and a recheck signal transmitting module, the light receiving and light intensity monitoring module is used for receiving a thyristor trigger signal and generating a trigger switch signal; the logic module receives the trigger switch signal, performs logic processing, and outputs a logic switch signal and a monitoring point output signal of the light receiving and light intensity monitoring module; and the re-inspection signal transmitting module performs logical operation on the processed logic switch signal and a monitoring point output signal, and outputs a re-inspection signal according to a logical operation result. According to the embodiment of the invention, the on-line monitoring of t