The Intelligent Water Pressure Controller

Intelligent water pressure controller is an important instrument of generating and controlling water pressure. It can replace the normal source of water pressure; It can generate dynamic water pressure which have different frequency and different range; It also can be set to generate static water pressure. To satisfy this kind of practical demand, this Master's degree paper expatiates the basic theories and knowledge in designing the instrument that generate water pressure, which developed in the corresponding research subject. Details are provided at some key points.Firstly, the thesis brings forward a system resolve scheme based on MCU, and carries it out. On the base of summarizing the MCU system, the thesis brings forward a system resolve scheme which based on PCI-BUS, and makes a detail reasoning of it's feasibility.Three parts constitute the intelligent water pressure controller we concern, including data acquisition part, execution system and upper controller system. While, the PCI-8310 date acquisition card is used as a core component in the data acquisition system. With the help of software programmed in Visual Basic, the system saves the acquisitive information to the appointed memorizer after disposing and calculating each electric signal. The execution system becomes more automatic by the use of servo system, and the controller can be a closed loop system after setting the electromotor exactly. For the controller system, it's the PC to control the whole acquisition system. Because of the high speed of PC, the system could acquire high-frequency information and subdivide the information, then reduce the possibility of distortion and increase the available of data. By the help of software, the three parts work together from the signal's production to the restoration. So the system becomes more intelligent and every groupware of the system is advanced inland.The debugging and running of the system indicate that the whole design is feasible and reliable, and the presumed functions have been conducted successfully.