多参数人体健康监护系统设计与实现

发布时间：2019-04-20 19:17

【摘要】：随着社会的不断发展,人们的健康意识不断增强以及亚健康、老龄化等现象的普遍存在,病患就诊人群正在不断扩大,医疗资源变得更加紧张,人们的健康理念开始发生从有病就医到无病防御的转变,能够自行监测健康状况的健康监护系统已经成为一种迫切的需求。根据上述状况,本文将对人体的心电、血氧、血压和脉搏多项生理参数的监测作为出发点,从实用性、便携性、扩展性等多个角度设计一套能够实时检测人体健康信息,通过无线传输功能上传到数据中心进行实时监护的健康监护系统。心电监测模块选用圆盘电极片,采用标准双极性肢体导联,在对心电信号特征进行分析的基础上通过前置放大、二级放大和滤波处理获取心电模拟信号,通过AD转换后在软件上实现心电图波形的传输和存储以及QRS检波；血氧监测模块采用动态光谱法使用波长分别为660nm和940nm的两种光源透射手指,通过光电接收器对透射光进行光电转换并对所得电信号放大滤波经AD转换后通过软件采集人体血氧信息；血压监测模块采用压力传感器将血液循环中血压变化时脉搏波振幅的变化所产生的压力信号转换为电压信号,经过低通和带通滤波分别提取静压力和脉搏信号,再经AD转换后在软件中根据示波法中的幅度系数法计算血压值；数据汇聚中心使用Samsung公司的S3C2440A芯片作为主控芯片,利用其内部的存储控制器以及LCD控制器等资源和ZigBee无线模块实现各生理参数数据的显示、存储以及由监测终端向数据汇聚中心转发和多参数的联合监测。本系统初步实现了多项生理参数的监测和无线传输,能够实时监测心电、血氧、血压及脉搏,各监测模块均为可选模块提高了系统的灵活性和可扩展性,对健康监护系统的发展起到了积极的作用。
[Abstract]:With the continuous development of society, people's awareness of health and the prevalence of sub-health, aging and other phenomena, patients are expanding, medical resources become more and more tense, People's health concept began to change from sick medical treatment to disease-free defense, and the health monitoring system which can monitor health status by itself has become an urgent need. According to the above-mentioned situation, this paper takes the monitoring of human heart electricity, blood oxygen, blood pressure and pulse as the starting point, and designs a set of real-time detection of human health information from the aspects of practicality, portability, expansibility, and so on. A health monitoring system that is uploaded to a data center for real-time monitoring via a wireless transmission function. In the ECG monitoring module, the disk electrode is selected and the standard bipolar limb lead is used. On the basis of analyzing the characteristics of ECG signal, ECG analog signals are obtained by pre-amplification, two-stage amplification and filtering processing. After AD conversion, ECG waveform transmission and storage and QRS detection are realized on the software. The blood oxygen monitoring module uses dynamic spectrometric method to transmit the finger with two kinds of light source, the wavelength of which is 660nm and 940nm, respectively. The transmitted light is converted by the photoelectric receiver and the amplified filter of the obtained electrical signal is converted by AD and the oxygen information of human blood is collected by software. The blood pressure monitoring module uses pressure sensor to convert the pressure signal produced by the change of pulse wave amplitude in blood circulation into voltage signal. The static pressure and pulse signal are extracted by low-pass and band-pass filtering, respectively. After AD conversion, the blood pressure value was calculated according to the amplitude coefficient method of oscillographic method in the software. The data aggregation center uses the S3C2440A chip of Samsung Company as the main control chip, uses the internal memory controller, the LCD controller and other resources and ZigBee wireless module to realize the display of the physiological parameters data. Storage and multi-parameter joint monitoring from the monitoring terminal to the data aggregation center. The system preliminarily realizes the monitoring and wireless transmission of many physiological parameters, and can monitor ECG, blood oxygen, blood pressure and pulse in real time. Each monitoring module is optional module, which improves the flexibility and expansibility of the system. It has played a positive role in the development of health monitoring system.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R318.6

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