基于无线传感网络的临床护理呼吸机自动报警系统

Automatic alarm system for clinical care ventilator based on wireless sensor network

提出一种基于无线传感网络的临床护理呼吸机自动报警系统对呼吸机的运作过程进行实时监测,并及时对异常事件进行报警。首先,对自动报警系统的总体结构进行设计;然后对自动报警系统的软件部分进行设计,包括压力控制任务程序、呼吸识别与处理任务程序以及报警任务程序设计;最后,分别对各个任务功能进行实验测试。测试结果表明:分数阶PID控制器对气道压力进行恒定输出的误差控制在±0.2 cmH_2O;临床护理呼吸机的漏气量检测算法的精度大概为±0.3 L/min,能够达到临床护理呼吸机的使用标准;呼吸机自动报警系统能够根据事件紧急程度来进行报警,继而及时有效地发出报警信息提醒护理工作人员与保障患者的安全。

In this paper,a clinical nursing ventilator automatic alarm system based on wireless sensor network is proposed to monitor the operation process of the ventilator in real time and alarm abnormal events in time.Firstly,the overall structure of the automatic alarm system is designed;Then the software part of the automatic alarm system is designed,including pressure control task program,breathing recognition and processing task program,and alarm task program design;Finally,each task function is experimentally tested.The test results show that the error of the constant output of the airway pressure by the fractional PID controller is controlled at±0.2 cmH 2O.The accuracy of the leakage detection algorithm of clinical nursing ventilators is about±0.3 L/min,which can meet the standard of clinical nursing ventilators.The ventilator automatic alarm system can alarm according to the urgency of the incident,and then timely and effectively send alarm information to remind nursing staff and ensure the safety of patients.