基于无线传感器网络的脉搏波传导时间监测系统  

A System for Measurement of Pulse Wave Transit Time Continuously Based on Wireless Sensor Network

作　　者：姬军[1] 俞梦孙[1] 向海燕[2] 刘延勇[1] 

机构地区：[1]第四军医大学生物医学工程系,陕西西安710032 [2]空军航空医学研究所,北京100036

出　　处：《航天医学与医学工程》2006年第6期434-437,共4页Space Medicine & Medical Engineering

基　　金：国家"十五"科技攻关计划资助(2004BA706B15)

摘　　要：目的设计一个可以在作业条件下无创连续监测脉搏波传导时间(PWTT)的系统。方法运用无线传感器网络技术设计的心电和脉搏波无线传感器组成整个监测系统,同步测量头部颞浅动脉脉搏波信号和体表心电信号,并且计算脉搏波传导时间。结果心电和脉搏波无线传感器体积小,且采用纽扣电池供电,彼此之间的时间同步精度小于1ms。计算出的脉搏波传导时间随缓慢深呼吸而相应变化。结论由具有体积小、功耗低和时间同步精度高等特点的心电和脉搏波无线传感器组成的监测系统能够在作业条件下无创连续监测脉搏波传导时间。Objective To design a system for monitoring pulse wave transit time （PWTT） in working condition non-intrusively and continuously. Method The system was composed of wireless ECG sensor and wireless pulse wave sensor which measure pulse wave signal from the temporal artery and ECG signal from body synchronously and calculates PWTT continuously. Result Both the wireless ECG sensor and the wireless pulse wave sensor were small sized and powered by button battery. And the accuracy of time synchronization about sensors was less than 1 ms. The calculated PWTT changed slowly with deep breathing. Conclusion The system works smoothly for continuous monitoring of PWTT in working condition.

关 键 词：脉搏波传导时间 无线传感器网络 头部 低功耗 作业条件 无创测量 

分 类 号：R318.6[医药卫生—生物医学工程]