睡眠呼吸暂停报警监护仪设计-终.docVIP

西南科技大学本科生毕业论文 III 西南科技大学本科生毕业论文 I 睡眠呼吸暂停报警监护仪的设计 摘要：睡眠呼吸暂停综合症(Sleep Apnea Syndrome，SAS)是一种发病率高，具有潜在危险性的疾病。传统的呼吸暂停监护系统虽能有效减少呼吸暂停病患者的死亡率，但不能对众多该类患者进行实时监护，尤其是症状较轻的早期患者。其发病随机，持续时间短暂，给病情的及早诊断和治疗造成很大的困难。本文主要介绍了利用热敏电阻MF52作为温度传感器来检测人体呼吸时呼出的气流温度的变化，将从温度传感器输出的毫伏级的信号经过AD620放大后，得到2.3V左右的能够被微处理器处理的信号，从而获得呼吸信号参数，并通过微处理器MSP430F149进行分析处理后，判断是否暂停，如果有暂停发生，则通过蜂鸣器发出报警信号以提示旁人进行一定的处理。同时记录下发生呼吸暂停的时间，并且在LCD上显示，实现了实时监控的目的。 关键词：睡眠呼吸暂停综合症；监护仪；热敏电阻；MSP430F149 西南科技大学本科生毕业论文 II The Design of Sleep Apnea Alarm Monitor Abstract: Sleep apnea syndrome is a high incidence and potentially dangerous disease. The traditional apnea monitoring system can effectively reduce the mortality rate of sleep apnea patients, but can not monitor numerous patients by the real-time, especially the patients with early lighter symptoms. It is difficult to early diagnosticate and treat, because of random and short duration. This paper introduces a method of using thermister MF52 as temperature sensors to detect the temperature changes of exhaled airflow by human breath, the mV level signal which output from the temperature sensor, through the amplifier AD620, we can obtain a signal about 2.3 V, which could be processed by microprocessor, that is the signal processing parameters. After breathing signal processed by MSP430F149 microprocessor analysis, it can judge if it is suspended, if it is, a warning signal by a buzzer can be given to others to make some processing, while recording the occurred time, and displaying in LCD, which can realize the purpose of real-time monitoring. Key words: Sleep Apnea Syndrome, Monitor, Thermister , MSP430F149 西南科技大学本科生毕业论文 IV 西南科技大学本科生毕业论文 III 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc232509126 第1章 绪 论 PAGEREF _Toc232509126 \h 1 HYPERLINK \l _Toc232509127 1.1 睡眠呼吸暂停综合症 PAGEREF _Toc232509127 \h 1 HYPERLINK