基于故障树分析法的医疗器械故障远程监测方法.pdfVIP

《自动化技术与应用》2025年第44卷第6期仪器仪表与检测技术

InstrumentationandMeasurment

DOI:10.20033/j.1003-7241.（2025）06-0132-04

基于故障树分析法的医疗器械故障远程监测方法

陆远

(北京市垂杨柳医院,北京100021)

摘要:为解决医疗器械经常出现故障,影响患者的身体健康这一问题,基于故障树分析法研究医疗器械故障的远程监测方法。先获

取故障树的最小割集,同步隶属度函数曲线,得到故障树模糊算子的计算结果;然后基于故障树算子计算偏差,结合滑动窗

口,遍历窗口内的数据点,获取局部最优解,实现医疗器械故障指标的标定;最后提出故障远程监测算法,计算适应度值,得到

医疗器械故障远程监测方法。分别测试4种不同的监测方法在训练误差为0.3、0.2、0.1时的精度指标,通过数据分析可知:

故障树分析法的误差值最小,其监测方法精度最高。

关键词:故障树分析法;医疗器械故障;远程监测;故障诊断

中图分类号：TP277文献标识码:A文章编号:1003-7241(2025)06-0132-04

RemoteMonitoringMethodofMedicalDeviceFault

BasedonFaultTreeAnalysis

LUYuan

(ChuiYangLiuHospitalAffiliatedtoTsinghuaUniversity,Beijing100021,China)

Abstract:Inordertosolvetheproblemthatmedicaldevicesoftenfailandaffectthehealthofpatients,aremotemonitoringmethodformed-

icaldevicefailuresisdesignedbasedonfaulttreeanalysis.Firstitobtainstheminimumcutsetofthefaulttree,synchronizesthe

membershipfunctioncurve,andobtainsthecalculationresultofthefaulttreefuzzyoperator.thencalculatesthedeviationbased

onthefaulttreeoperator,combineswiththeslidingwindow,traversesthedatapointsinthewindow,andobtainsthelocaloptimal

solution,toachievethecalibrationofmedicaldevicefailureindicators.Finally,thefaultremotemonitoringalgorithmisdesigned,

thefitnessvalueiscalculated,andthemedicaldevicefaultremotemonitoringmethodisobtained.Theaccuracyindicatorsoffour

differentmonitoringmethodsaretestedrespectivelywhenthetrainingerrorsare0.3,0.2,and0.