摘要
远程医疗是利用现代化多媒体通讯技术进行医疗和保健的服务模式。远程医疗涉及到医疗、通讯、计算机等多个领域,包括远程会诊、远程咨询及远程监护等,是解决医疗资源分配不均、实现健康管理的重要途径。互联网的飞速发展,计算机的更新换代以及多种网络接入方式的出现,正在使得真正意义上的远程医疗得以实现。
家庭监护属于远程监护的范畴。家庭监护不仅为人们提供一个随时随地的医疗保健系统,还可以提高医院的效率,减少社会面临的医疗和养老服务的压力。脉搏血氧是衡量人体呼吸功能及氧含量是否正常的重要指标,也是家庭监护的重要生理参数之一。实时地检测脉搏血氧,可以及时地发现低氧血症以及睡眠呼吸暂停综合症和夜间低血氧症等,对中风、心肌梗塞和疲劳驾驶都有重要的意义。
论文首先阐述了光学测量法检测脉搏血氧的原理,分析了实施实时的脉搏血氧检测的必要性。然后针对脉搏血氧检测设备进行了设计和实现研究。论文的主要工作和新成果如下：
1根据实时脉搏血氧检测的需要,选择了MCU芯片设备,进行了低功耗的网络脉搏血氧检测设备的总体设计,包括针对各种杂波的屏蔽方法以及滤除算法。
2分析了短距离无线传输的Zigbee协议栈,设计了基于Zigbee协议进行短距离无线传输的系统模块。Zigbee模块和脉搏血氧信号提取设备连接,是实现网络脉搏血氧检测实时性能的关键,也是论文设计的脉搏血氧监测设备具有的独特优势。
3完成了脉搏血氧检测设备的软硬件设计,制作了设备,实现了脉搏波形图、脉率和血氧饱和度的提取和实时显示。
论文最后进行了总结,通过对设备的性能检测对比分析,提出了将透射式血氧探头改进为反射式血氧探头,可以扩大应用范围；将生理信号的提取和传输与手机平台结合扩大传输距离等提高设备的实用性的进一步研究设想。
本论文得到国家自然基金项目“泄漏电磁波认知及视频信息挖掘技术研究”的资助,项目编号：61072136
Telemedicine is a medical service model in which modern multimedia modern multimedia communication technology is applied for medical and health care. Telemedicine involves medical, communications, computer and and so on, which includes remote consultation, remote consultation and remote monitoring. Telemedicine is an important way to solve the uneven distribution of medical resources and achieve health management. The rapid development of internet and the upgrading of the computer and network access methods make the telemedicine a realization.
Family care belongs to remote monitoring. Family care can reduce the medical and pension service pressure of the society and improve the efficiency of the hospital by providing a whenever and wherever health care system. The pulseoximeter is one of the crucial parameters in the home care, which is an important index to keep human respiratory function and oxygen content is normal. Real time detection of pulseoximeter, can timely detect hypoxemia and sleep apnea syndrome. It also has important significance for monitoring stroke, myocardial infarction and fatigue driving
In the paper, we firstly described the principle for detecting pulseoximeter with optical measurement method and analyzed the necessity of conducting pulseoximeter detection in real time, and then conducted the design and realization research of the pulseoximeter detecting equipment. The work and achievements of the paper are described as follows:
1. According to the requirement to detect pulseoximeter in real time,we chose a suitable MCU, and completed the overall design of low power network pulseoximeter detecting equipment, including filtering algorithm and shielding method for various of clutters.
2. Gave an analysis of the short distance wireless transmission protocol stack of Zigbee, and completed the design of short distance wireless transmission module. The connection of Zigbee module and pulseoximeter detecting equipment, is a key to realize network pulseoximeter real-time detetion, It is also the unique advantage of the pulseoximeter detection equipment of the paper.
3. Completed the software and hardware design of pulseoximeter detection equipment, and realized the extraction of pulse waveform, heart rate and oxygen saturation.
At the end of the paper, a summary is given for the network pulseoximeter detection equipment. By comparing and analyzing the performance of the equipment, some tentative ideas to improve equipment availability are put forward, including replacing the transmissive oxygen probe with reflective oxygen probe to expand the range of applitions, and combining the mobile phone platform with physiological signal extraction and transmission to to expand the transmission distance.
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