Reference In The Yellow River Water Resources Engineering, Automatic Control Parameter Controls The Process Of Design And Research

People detect important technologic parameter by making use of the advanced shift technology and control technology home and overseas in the " Citing Yellow River Source Project". Needing measured signal involves: flux signal that need measure, press signal that detect the function of the pump and hydraulic pressure signal that detect the hydraulic pressure of the seto People put those signals into the PLC control system and control those signals by advanced PLC control technique through fieldbus technology.PLC achieve its PID control by using the closed loop control module. It has a controller that can achieve the control function ,and it can achieve remote batch by the way of network. The function is powerful and flexible. In the thesis, apply the PLC to the " Citing Yellow River Source Project, and it should replace the instrument fixed in the set in the past. People improve the precision of measuring and controlling by using the advanced sensor technology, communication technology, information isolated technology; And it achieve the best optimize control scheme by circle controlling the transducer and five pumps. The operator can see the change chart of the important technologic parameter on the computer at any time and can control the technologic parameter at another place. The system's collocate is reasonable, its function is credibility. Operation is very convenient, and it has the high ratio of quality to price and favorable maintainability, so it insures the steady run of the whole system.By deeply studying and arguing the" Citing Yellow River Source Project", the thesis demonstrates the advancing , rationality and reliability of the sensor technology, communication technology, information isolated technology and PLC technology applied to it.