Blood circulation diseases treatment based on decentralized adaptive control.

In view of the blood circulation network model that reflects the system performance with difficulty. According to blood circulation network branch flowquantity and pressure mutual influence hemodynamic characteristic, utilize Kirchhoff's current and voltage laws, graph theoretic concepts and hemodynamic equations of individual branches, establishes the multivariable nonlinear minimal model. Decentralized and adaptive controller design based on the minimal model, we solve a decentralized and adaptive nonlinear control problem where actuator valves and flowrate sensors are collocated in individual branches and do not exchange information. We solve the tracking (time varying reference signals) problems. Through cerebral circulation network simulation, it can realize the control process from pathology to normal, provides the basic theories to treatment and method of the diseases about the cerebral circulation. [ABSTRACT FROM AUTHOR]