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基于膈肌肌电触发的呼吸机面板开发

发布时间:2018-08-24 13:29
【摘要】:呼吸机作为一种协助自主呼吸的有效设备,在现代医疗设备方面占据了很重要的位置。本课题研究了一款以膈肌肌电触发模式为主,多种触发模式并存的高精度、高舒适度、高可靠性的呼吸机。 首先,本文对本系统进行功能和技术上的需求分析,提出了双MCU的系统架构,每个MCU负责相对独立的一块功能。其中一个MCU负责面板这一部分,这也是本文主要介绍部分。面板的职责是设计一个良性界面和相关数据通信接口。 其次,在确定系统总体架构后,本文对系统硬件平台和软件平台进行详细的选型。在选型阶段,分析了上层应用软件需要硬件资源,以及资源消耗点分析,从而确立所需ARM内核资源以及外围接口。另一方面,分析和比较当下各种操作系统,从系统硬件出发,,利用中间件的思想和优点,选择合适的软件平台。最终选择了以LPC3250为硬件平台的核心,以RTX实时操作系统为软件平台的核心的解决方案。 接着,我们就RTX操作系统平台,开发相关数据通信接口,如UART、SPI、Internet和USB。在开发这些数据通信接口时候,我们首先分析硬件平台的数据通信接口特点,进行相关的电路设计。随后对各个通信接口的带宽进行数据分析,并针对带宽不足等问题进行硬件加速。最后,完成整套数据通信接口驱动编写,以及通信数据测试。 最后,本人就GUI系统平台和GUI应用程序作了详细介绍。在GUI系统平台部分,本文在分析和比较各种嵌入式GUI平台基础上,提出了GUI实现架构并给出了具体实现。然后针对此GUI平台,研究呼吸机涉及的主要的生理参数和系统曲线,对各个界面模块合理布局,设计出符合医护人员要求和习惯人机界面。
[Abstract]:Ventilator, as a kind of effective equipment to assist autonomous breathing, occupies a very important position in modern medical equipment. In this paper, a ventilator with high precision, high comfort and high reliability is studied, which is based on diaphragm electromyography trigger mode and co-exists multiple trigger modes. Firstly, this paper analyzes the functional and technical requirements of the system, and proposes a dual MCU system architecture, each MCU is responsible for a relatively independent function. One of the MCU is responsible for this part of the panel, which is also the main part of this article. The responsibility of the panel is to design a benign interface and related data communication interface. Secondly, after determining the overall structure of the system, the hardware platform and software platform of the system are selected in detail. In the selection stage, the hardware resource and the resource consumption point of the upper application software are analyzed, so as to establish the ARM kernel resource and the peripheral interface. On the other hand, we analyze and compare the current operating systems and choose the appropriate software platform based on the system hardware and the advantages of middleware. Finally, we choose the solution of LPC3250 as the core of hardware platform and RTX real-time operating system as the core of software platform. Then, on the RTX operating system platform, we develop related data communication interfaces, such as UART,SPI,Internet and USB. In the development of these data communication interfaces, we first analyze the characteristics of the hardware platform data communication interface, and carry out the related circuit design. Then the bandwidth of each communication interface is analyzed, and hardware acceleration is carried out to solve the problem of bandwidth shortage. Finally, complete the whole set of data communication interface driver writing, as well as communication data testing. At last, I introduce the GUI system platform and GUI application program in detail. In the part of GUI system platform, based on the analysis and comparison of various embedded GUI platforms, the implementation framework of GUI is put forward and the concrete implementation is given. Then the main physiological parameters and system curves of ventilator are studied based on this GUI platform. The reasonable layout of each interface module is designed to meet the requirements of medical personnel and the habit of man-machine interface.
【学位授予单位】:华南理工大学
【学位级别】:硕士
【学位授予年份】:2012
【分类号】:TH777

【引证文献】

相关硕士学位论文 前1条

1 董佳;CAN总线分析仪设计[D];华南理工大学;2012年



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