【作者】 廖伟；

【导师】 田联房； 陆尧胜；

【作者基本信息】 华南理工大学 ， 控制工程， 2015， 硕士

【摘要】 呼吸机作为一种可以代替和辅助人体生理呼吸的医疗设备,已经普遍地被运用于各种的医疗环境中,比如手术室、ICU病房等,在现代医疗领域占据着极为重要的位置。但是现有的呼吸机设备存在多方面有待解决的问题,比如人机对抗、呼吸不同步、呼吸机肺等。另外,由于我国的呼吸机发展与国外相比有较大的差距,这就造成了市场上优质呼吸机的价格始终居高不下。所以研究一款智能型、高可靠性、具有良好舒适度并且低成本的基于膈肌肌电信号触发的多功能呼吸机就显得意义重大。本课题首先从人体呼吸的机理出发,对传统呼吸机触发方式和膈肌肌电信号触发方式进行了简单的比较,说明基于膈肌肌电信号触发的呼吸机的优势。接着简述了呼吸机未来的发展方向,从而基本确定了本文的设计目标。整个课题分为3个部分:肌电信号采集模块、控制模块和面板模块。本文主要负责面板控制模块,其主要的任务就是设计一个良好易用的图形用户界面并实现数据通信。本文介绍了面板部分的整个架构以及各个子模块的器件选型、电路设计和具体实现过程。考虑到应用领域的特殊性和丰富的外围设备接口的需要等因素,选择了NXP公司的LPC3250作为面板模块的微处理器。其次,考虑到集成开发套件ARM-MDK拥有非常完善的开发环境,包括集成开发调试环境、自带轻量级的操作系统——RTX、丰富的中间件资源,选择了KEIL公司的ARM-MDK作为整个面板模块开发的软件平台。最后,在对比分析了主流呼吸机的交互界面的基础上,对研制的呼吸机界面进行了合理的规划设计,使其具有良好的舒适度和易操作等特性。更多还原

【Abstract】 As a kind of medical equipment assisting and substituting for physiological breath,the ventilator has been widely used in various medical environment, such as ICU and operating room etc.With the comprehensive understanding of respiratory theory,the gradually miniaturization of equipments and the improvement of electronic technology,respirator is used more and more frequent.So respirator occupies an important position in current medical field.But,the respirator expose some defects,like asynchrony breathing and ventilator lung etc.Additionally,domestic ventilator is far behind abroadventilator,so that the price of ventilator is very high.It is necessary that we develop a kind of inexpensive and multifunctional ventilatortriggered by electrical activity of the diaphragm.We make a comparison between traditional ventilator with ventilator triggered by electrical activity of the diaphragm.We briefly introduce the development trend of future ventilator and basically determine the design goal.The entire project consists of three parts:acquisition module,control module and display module.We mainly discuss the design of favorable GUI and communication interface in this paper.We introduce the structure of display module and element selection,circuit design and specific implementation process.We consider that ventilator is used in particular field and it is multifunctional,so we select the LPC3250 as the MCU of panel module.We choose the ARM-MDK development kits as the software development platform of panel module,because ARM-MDK kits contain μVision IDE,RTOS-RTX and rich middleware.After we compare and analyze the GUI of popular ventilators,we legitimately plan and design the comfortable and easy-to-use GUI.更多还原