基于嵌入式睡眠监测平台的研究

发布时间：2018-02-13 11:12

本文关键词： 睡眠监测脉搏信号 ARM7 无线通信 LabVIEW　出处：《陕西科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：睡眠作为人类基本的生理活动，对人体的生命健康起着至关重要的作用。脉搏信号作为人体重要的生理参数之一，因其包含有丰富的生理特征信息而与身体的健康状况密切相关。因此，，如何能及时有效地对睡眠者脉搏信号进行监测成为了课题的研究目标，将对于睡眠质量的评估与分析以及对疾病的诊断提供参考依据。论文对睡眠监测技术的发展现状、趋势以及嵌入式系统的应用等进行了阐述，采用了嵌入式技术、无线通信及虚拟仪器相结合的方法构建睡眠监测平台。主要内容包括：（1）脉搏波基础理论研究。研究了脉搏波形特征量K值与表征人体血压、血流和微循环信息参数的关系，并将该理论在睡眠监测平台上进行实现。（2）硬件电路设计与调试。包括数据采集与无线传输模块电路的设计。主要以LPC2103为核心，设计了外围电路、脉搏信号调理电路以及无线发送与接收电路，通过USB转串口电路的设计完成与上位机的通信。（3）软件程序设计。完成睡眠者脉搏信号采集与传输程序设计以及上位机虚拟仪器程序的设计。前者以ADS1.2为开发环境，通过编程实现对睡眠者脉搏信号的采集、A/D转换以及信号的无线传输；后者以LabVIEW为开发环境，通过编程实现了用户管理、脉搏信号的实时显示与存储、分析与处理以及程序发布等功能。（4）系统抗干扰措施设计。完成硬件电路抗干扰与软件滤波抗干扰设计，并利用上位机的摄像头来采集睡眠过程中睡眠者的面部图像与动作信息，进一步提高对睡眠过程监测的可靠性。最后，通过实验对睡眠监测平台的性能进行分析。结果表明，硬件平台以ARM7为核心处理器，体积小、功耗低、速度快且无需扩展A/D转换电路；利用无线通信模块JF24C完成数据传输可避免布线，减少干扰；以LabVIEW软件完成上位机虚拟仪器的设计，界面友好，操作简单。该平台即解决了传统监测方式的复杂性问题，又提高了对睡眠质量评估的可靠性。
[Abstract]:As a basic physiological activity of human beings, sleep plays a vital role in human life and health. Pulse signal is one of the important physiological parameters of human body. Because it contains abundant physiological characteristic information and is closely related to the health condition of the body, how to monitor the pulse signal in time and effectively has become the research goal of the subject. It will provide reference for the evaluation and analysis of sleep quality and the diagnosis of diseases. In this paper, the current situation and trend of sleep monitoring technology and the application of embedded system are described. The sleep monitoring platform is constructed by the combination of embedded technology, wireless communication and virtual instrument. The main contents are as follows:. 1) the basic theory of pulse wave. The relationship between the characteristic value of pulse wave K and the information parameters of blood pressure, blood flow and microcirculation is studied, and the theory is implemented on the sleep monitoring platform. 2) hardware circuit design and debugging, including the design of data acquisition and wireless transmission module circuit. The peripheral circuit, pulse signal conditioning circuit and wireless transmitting and receiving circuit are designed with LPC2103 as the core. The communication with the host computer is completed by the design of USB to serial port circuit. 3) Software programming. The program design of pulse signal acquisition and transmission of sleeper and the design of host computer virtual instrument program are completed. The former takes ADS1.2 as the development environment, The acquisition of pulse signals and wireless transmission of signals are realized by programming. The latter realizes user management, real-time display and storage of pulse signals using LabVIEW as the development environment. Analysis and processing as well as program release and other functions. 4) the design of anti-interference measures of the system. The hardware circuit anti-jamming and software filtering anti-jamming design are completed, and the camera of the upper computer is used to collect the facial image and action information of the sleeper during sleep. Further improve the reliability of sleep process monitoring. Finally, the performance of the sleep monitoring platform is analyzed through experiments. The results show that the hardware platform uses ARM7 as the core processor, small volume, low power consumption, high speed and no need to expand the A- / D conversion circuit. Using wireless communication module JF24C to complete data transmission can avoid wiring and reduce interference, LabVIEW software is used to complete the design of host computer virtual instrument, the interface is friendly and the operation is simple. The platform solves the complexity of traditional monitoring mode. It also improves the reliability of sleep quality evaluation.
【学位授予单位】：陕西科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TP274

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