Design & Implement Of The Constant Pressure Water Supply Systems

The dissertation focuses on the constant pressure water supply systems. This system takes advantage of MCU to accomplish the real-time control and adaptive Fuzzy-PID control techniques, and it realizes the rapidness and reliability of automatic constant pressure water supply in the social community. It solves the water quality and resource waste in social communities, and combines MCU and variable frequency in practice. This paper elaborates the design and realization of constant pressure water supply system.First, after some tremendous reading, it summarizes the current condition and latest research progress of constant pressure water supply system in China and abroad, and analyzes the practicality and necessity of energy save in water supply systems. It also analyzes the developing trend in fuzzy control.Consequently, in terms of the water supply systems, it gets the model of water supply systems and compensates it with PID controller. Then it does further research on fuzzy control and raises the adaptive Fuzzy-PID control. The simulation indicates that adaptive Fuzzy-PID control is superior to classical control, and adaptive Fuzzy-PID control has obvious control effect on time-delay systems and has good robustness and rapidness.Finally, it reveals the further research on MCU and variable frequency, and finishes the hardware circuit and programming on communication and fuzzy control.