基于公共电话网的家用智能心率监控系统设计  

Home-used intelligent heart rate monitoring system based on PSTN (public telephone network)

作　　者：赵星[1] 郑珊萍[1] 李木子[1] 张理兵[1] 

机构地区：[1]温州医学院信息与工程学院,浙江温州325035

出　　处：《大众科技》2012年第2期13-14,46,共3页Popular Science & Technology

摘　　要：文章设计了基于公共电话网的家用智能心率监控系统,该系统由采集心率的下位机和基于公共电话网远程报警的上位机组成,两者之间采用无线通讯。下位机心率采集部分利用压电陶瓷传感器,将采集到的信号经过后级放大滤波整形得到稳定的方波信号,应用单片机技术将脉搏信号转换成心率值通过1602液晶显示,并对异常信号通过PT2262/2272无线通讯模块发送给上位机,上位机通过公用电话网进行报警,可以实现实时监测,远程通讯和呼救等多种功能。A kind of home-used intelligent heart rate monitor system based on PSTN is designed in this paper.The system is composed of the lower computer used to collect the heart rate and the upper computer used to romotely alarm by PSTN,and these two parts can wirelessly communicate with each other.The lower computer of heart rate collection adopts piezoelectric ceramic sensor.With the designed amplifying circuit,filter circuit,and shaping circuit,we finally can get the heart rate square wave signal.And comprehensively utilizing the technology of MCU and wireless communication,the pulse signal can be convert into heart rate values which is displayed by LCD-1602,and the lower computer can send the anomalous heart rate signal to upper computer by the wireless module PT2262/2272,then the upper computer alarms by the PSTN.Thus,the intelligent heart system can achieve the functions of real-time monitoring,telecommunications and crying for help.

关 键 词：心率 压电陶瓷 单片机 无线通讯 公用电话网 

分 类 号：TN92[电子电信—通信与信息系统]