基于ZigBee的血氧饱和度检测技术与模块研制

目的：为了及时、准确、方便、无约束地检测血氧饱和度，本文研制一种无线血氧饱和度检测模块。方法：结合穿戴式检测技术和ZigBee短距离无线通信技术，设计出基于ZigBee的无线血氧饱和度检测模块。该模块由光电容积脉搏波微型化检测模块、ZigBee接入终端及上位机数据分析处理模块组成，其中数据分析处理采用基于形态匹配的特征提取算法对光电容积脉搏波进行最大值的定位。结果：模块实现的功能有光电容积脉搏波显示，血氧饱和度计算，数据无线传输等。实验表明光电容积脉搏波的最大值检测准确率达到98％，而血氧饱和度的计算误差控制在8．8％以内，满足血氧饱和度的检测要求；此外，ZigBee无线传输技术与光源驱动脉冲调节器均有效减少能量的消耗。结论：本模块设计实现病人的移动监护，具有无线化、低功耗、微型化和高性价比等特点。

Research on ZigBee based Monitoring for Blood Oxygen Saturation

Objective:In order to detect blood oxygen saturation timely,accurately,and conveniently,a wireless blood oxygen saturation detection module has been developed.Methods:Based on wearable monitoring technology and ZigBee wireless communication technology,we designed a blood oxygen saturation module of finger cuff type.This system is composed of photoplethysmography detection micromodule,ZigBee access terminal,and data analysis program,which realize the functions of waveform display,SpO2 calculation,wireless da...