基于模糊PID的睡眠呼吸机控制系统设计

持续气道正压(Continuous Positive Airway Pressure,CPAP)通气是目前治疗阻塞性睡眠呼吸暂停(Obstructive sleep apnea,OSA)最为有效的方式之一。但在实际应用中,由于受到患者自主呼吸的影响,使得气道压力很难保持稳定。为了降低患者自主呼吸对设定压力的干扰,以及消除患者呼气时的憋闷感,模糊PID控制方法被应用于睡眠呼吸机CPAP的压力控制上。本文介绍了硬件系统结构并通过查询模糊规则表的方法实现了Fuzzy PID的算法,最后,使用了气体流量分析仪(VT PLUS HF)对治疗时的压力曲线进行了测试。结果表明,压力的波动性满足了睡眠呼吸暂停治疗设备的相关标准。

Based on Fuzzy Proportional Integral Derivative Control System Design for Sleep Apnea Machine

Continuous Positive Airway Pressure(CPAP) ventilation remains a most effective treatment way for the obstructive sleep apnea(OSA).However,due to the impact of patients' spontaneous breathing,it is difficult to make airway pressure stable practically.To minimize pressure variations caused by spontaneous breathing as well as the uncomfortable feeling of exhaling again positive pressure,Fuzzy PID control system methods was used on CPAP pressure control.This article described the system structures and implement...