5、D,wecandopreliminarydiagnosis.Oursystemfeaturedwithstrongcapacity of resisting disturbance,highreliability,lowpower consumptionandtinyshape,itcanbewidelyusedinthehospitalsandcommunities.Keywords:ECG;Electrocardiosignal;ZigBee;CortexM3191.引言当今中国正在步入老龄化社会,解决好老年人的日常护理问题将是我国社会下阶段发展的重大课题