毕业设计---基于Atmega16的家用心电监测仪的研究设计

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1、 I 摘摘 要要 本课题主要设计一个基于Atmega16的家用心电监测仪的研究设计。 根据人体心电信 号的特征，设计心电信号采集系统，完成实时心电监测的功能。 本系统通过硬件电路实现了对心电信号实时的采集和处理，并将模拟的心电信号转 换成数字信号送入主控单元，从而实现了心电信息的实时显示、存储、打印、报警等功 能。 本设计选用具有低功耗的 16 位单片机 Atmega16 作为中央处理系统，通过心电传感 器，从人体连续取得心电信号，经过专门的信号处理电路进行处理后送入中央处理系统， 中央处理系统通过分析、处理，检测出病人的心电信号，并与正常的心电信号比较，对 采集的心电信号进行实时分析、检测及

2、记录，并选取大容量 Flash 存储器对采集处理后 的心电信号进行存储。同时，监测仪带有液晶显示器，能实时显示所检测的心电信号。 当病人出现紧急的心电症状时，其特有的报警功能可以及时的发出报警，便于及时的对 病人进行救治。该系统还可以打印出心电波形供医务人员分析病情时参考，及时准确的 采取治疗措施，制定治疗方案。 该监测仪能长期、连续、可靠、稳定的工作，同时还具有体积小、存储容量大、功 耗低、实时显示等特点，便于随身携带，使用方便，操作简单。 关键词关键词 心电监测 心电监测仪 心电传感器 信号处理电路 II Title: The design of household ECG monitor

3、 Abstract The topics mainly based Atmega16 household ECG monitor research and design. According to the characteristics of the human ECG, design ECG acquisition system,in real-time ECG monitoring function. This system has realized through the hardware circuit to heart signal real-time gathering and p

4、rocessing, and will simulate the heart signal transforms the digital signal to send in the master control unit, thus has realized the function of heart informations real time display, memory, printing, alarming, etc. This design uses a low-power 16-bit microcontroller Atmega16 as the central process

5、ing system, through ECG sensor, from the human body to obtain a continuous ECG signal, by a dedicated signal processing circuit after being fed into the central processing system, the central system analysis, processing to detect the patients ECG signal, by comparison with a normal ECG, to achieve r

6、eal-time detection, analysis, selected records, select a high-capacity Flash memory to store the acquisition of the ECG. At the same time, the monitors with a LCD monitor, be able to real-time display ECG signal. When a patient have a emergency ECG symptoms, its unique alarm function can trigger a timely warning and treatment of patients timely. The system can also print out ECG waveform to provide reference for medical personnel, and timely and accurate implementation of therapeutic measure