基于Zigbee技术的生理信号监测系统的设计

发布时间：2018-06-21 05:17

本文选题：CC2530 + S3C2440　；参考：《河南理工大学》2014年硕士论文

【摘要】：随着我国老龄化进程的加剧,老年人群的健康状况逐渐成为人们关注的焦点。在老年群体的日常生活中检测生理信号可以有效地掌握区域内老龄人员的健康状况,为慢性疾病的诊断和预防提供重要的参考依据。目前,大量的生理信号检测系统需求给公共医疗服务带来了巨大的压力。针对传统生理信息检测设备体积庞大、采集信息单一、被测人员活动空间受限等问题,本文提出了一种基于Zigbee技术的生理信号监测系统的设计方案。通过将生理信号采集与Zigbee无线传输技术融合,设计出一种对人体的血压、心电、血氧饱和度和跌倒信号进行实时采集的便携式、低功耗监测系统。本论文在硬件方面设计了生理信号采集调理电路、S3C2440处理器电路、Zigbee通信电路、AFE4490电路、显示电路和电源电路。软件部分设计了生理信号采集程序、数字滤波程序、计算程序、早搏检测程序、跌到检测程序、数据校验程序和Zigbee通信程序。在数字滤波方面提出了一种基于网格蚁群的FIR滤波器优化设计方法,比较了优化设计参数与传统设计参数的滤波效果。本设计将无线传感器网络与生理信号采集相结合缩短了被测人员和采集系统的距离,扩展了被测人员活动空间;利用优化设计的数字滤波器,降低了信号采样过程中的干扰。整体设计采用模块化的设计方式,使得整个系统便于优化和维护。
[Abstract]:With the aggravation of the aging process in China, the health status of the elderly has gradually become the focus of attention. The detection of physiological signals in the daily life of the elderly population can effectively grasp the health status of the elderly in the region and provide an important reference for the diagnosis and prevention of chronic diseases. At present, a large number of physiological signal detection system needs to bring great pressure to public medical services. Aiming at the problems of the traditional physiological information detection equipment such as large volume, single collection of information and limited movement space of the person under test, this paper presents a design scheme of physiological signal monitoring system based on Zigbee technology. By combining physiological signal acquisition with Zigbee wireless transmission technology, a portable, low-power monitoring system for real-time acquisition of blood pressure, ECG, oxygen saturation and fall signals is designed. In this paper, a physiological signal acquisition and conditioning circuit, S3C2440 processor circuit and a Zigbee communication circuit, AFE4490 circuit, display circuit and power supply circuit are designed in hardware. In the software part, physiological signal acquisition program, digital filter program, calculation program, premature beat detection program, drop detection program, data check program and Zigbee communication program are designed. In the aspect of digital filtering, an optimal design method of Fir filter based on grid ant colony is proposed, and the filtering effect between the optimized design parameters and the traditional design parameters is compared. In this design, the wireless sensor network and physiological signal acquisition are combined to shorten the distance between the measured person and the acquisition system, and to expand the activity space of the person under test, and to reduce the interference in the signal sampling process by using the optimized digital filter. The whole design adopts modular design method, which makes the whole system easy to optimize and maintain.
【学位授予单位】：河南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH789;TN92

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