肿瘤热疗中温控系统的建模与仿真  

Simulation and maths model of hyperthermia temperature control system

作　　者：刘亭莉[1] 黄廷磊[1] 

机构地区：[1]桂林电子科技大学,广西桂林541004

出　　处：《传感器与微系统》2009年第1期43-45,共3页Transducer and Microsystem Technologies

基　　金：广西自然科学基金资助项目(0640169)

摘　　要：热疗是近几年出现的一种治疗肿瘤的新方法,针对热疗温度控制对象的纯滞后特性,在具有一阶惯性环节的Smith预估器的基础上,结合模糊PID控制与模糊自适应Smith预估控制,提出了一种模糊Smith智能控制方法。在生物热传递方程的基础上,建立了典型的热疗数学模型。通过对此模型的仿真研究表明:模糊Smith智能控制方法改善了控制性能,使温度控制系统的鲁棒性和抗干扰性得到了显著提高。Hyperthermia therapy is one of the newest methods for tumor treatment in recent years. Based on the one-order inertia tache Smith predictor, aimed at the pure hysteresis characteristic of hyperthermia temperature the fuzzy Smith intelligent control method which combines the fuzzy PID control with the fuzzy adaptive Smith predictor is proposed. According to biology thermal conductivity equation, a hyperthermia treatment maths model is established. Simulation results show that the method can improve the qualities of control and enhance the robustness and stability of the temperature control system.

关 键 词：温控系统 热疗 模糊控制 仿真 肿瘤 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] R73[自动化与计算机技术—控制科学与工程]