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为了适应病人的个体差异及手术过程中病人特性的变化,本文提出了多模型自适应控制(MMAC)的控制方法。其基本设计思想是:假设对象动态特性可由数个模型之一来表示,各模型均有一控制器与之配合,有一基于对象响应与模型响应之差关系工作的自适应机构,决定最能代表对象特性的模型,从而相应地决定了控制器。由于增益和时延对动态特性影响较大,为此各模型的增益互不相同,其他参数均一致,时延开始设为50秒,每当设定值变化≥20mmHg时,时延重新辩识。采用Smith预报器来消除这种延迟的影响。本文还给出了一系列
In order to adapt to the individual differences of patients and the changes of patient characteristics during the operation, a control method of multi-model adaptive control (MMAC) is proposed in this paper. The basic design idea is: Assuming that the dynamic characteristics of an object can be represented by one of several models, each model has a controller cooperating therewith, and an adaptive mechanism based on the difference between object response and model response determines the most representative object Characteristics of the model, which in turn determines the controller. As the gain and delay have a great influence on the dynamic characteristics, the gain of each model is different from each other, the other parameters are the same, the delay start is set to 50 seconds, and the delay is re-identified whenever the set value changes ≥ 20mmHg . Smith Predictor to eliminate the impact of this delay. This article also gives a series