Realization And Application Research Of Intelligent Control In Transfusion Monitor System

The using of computer technology has matchless superiority in transfusion monitor to realize automation and infomationization manage. Because transfusion system is nonlinear, time-varying and stagnant, conventional control method can hardly obtain benign real time monitor effect. New intelligent control method should be adopted to achieve real time monitor quickly and correctly.Fuzzy system and artificial neural network are the important developing directions of the intelligent control theory. Though they are different from conception and connotation, they can both be used to solve practical system problems caused by unaccuracy which can not be solved by traditional control methods. Neural Network can simulate the capacity of human brain nerve cell from the physiological structure. It is good at learning process. While Fuzzy logic can simulate the logic thought mechanism of human brain.It is good at skill process.They both have their advantages and disadvantages. We will get better controller if their advantages can be combined together. The combination of the fuzzy logic and artificial neural network is the fuzzy neural system. It has the important theory meaning and the actual application value to be used in the research of complicated nonlinear system. It has been widely used in the automatic control field.This article introduces a control method according to fuzzy neural network, which integrates the excellence of fuzzy logical control and neural network. It uses neural network to remember fuzzy rule and achieve fuzzy control, and uses error back propagation to realize online self-learning when control object parameter has changed. This method can colligate, analysis and dispose data quickly and exactly to achieve intelligent control.The monitor of this system has several pieces of main module, including the MSP430 MCU, the transfusion sensor, the electric apparatus, the LCD screen, the keyboard and the serial communication, etc. It realizes automatic monitor in the transfusion process.