生理参数热舒适评价中的穿戴式数据采集模块设计

摘要

基于生理参数的热舒适评价是热环境质量评估的新方法.为了提高该方法的实用性,设计了一种穿戴式、多生理参数采集模块.以Zig Bee技术为核心,采用聚偏氟乙烯(PVDF)薄膜传感器、半导体温度传感器和Ω/V变换原理分别检测脉搏、皮肤温度和皮肤电阻.实验结果表明:模块可靠采集腕部的皮肤温度和皮肤电阻,并从脉搏信号获取心搏间期序列,数据发送正常.该模块适合在自然状态下采集生理信号,有利于研究和应用多种生理参数综合评价热舒适性.%Thermal comfort evaluation based on physiological parameters is a new method for thermal environment quality assessment. In order to improve practicability of this method, a kind of wearable acquisition module of multi-physiological parameters is designed. Data acquisition and communication is based on Zig Bee technology, PVDF sensor, semiconductor temperature sensor and principle of Ω/V transform are adopted to respectively measure pulse,skin temperature and skin resistance. The experimental results show that skin temperature and skin resistance on wrist are measured reliably by module, RRI sequences are also extracted from the pulse signal, and data transmission is normal. This module collects physiological signals conveniently in the natural state of user is advantageous to the research and application of comprehensive evaluation for thermal comfort based on multiple physiological parameters