嵌入式LINUX远程家庭监护系统的设计
发布时间：2018-11-10 09:47
【摘要】：中国已快速进入老龄化阶段,需要护理的老人越来越多与当前医疗资源不足且分布不均之间的矛盾日益凸显。本文从经济可持续发展的角度出发,基于嵌入式电子、网络通信、传感器信息融合技术设计了一种“家庭—网络—医生”模式的远程家庭医疗监护系统,把医院传统护理监护通过Internet嫁接到家庭环境中,能够很好的解决老人日常护理问题,实现医院护理功能的向外延伸。本文详细描述了嵌入式远程家庭监护终端软件体系和硬件结构总体设计：硬件基础以ARM920T为核心处理器,SAMSUNG公司设计的32位微控制器S3C2440为核心,通过外接传感器DHT91、USB接口型摄像头、语音输入输出设备等外围器件组成系统硬件；软件基础监护终端以Linux2.6为平台研发,监护中心以VC++MFC为基础采用多线程进行软件设计。论文着重对嵌入式远程监护系统的软件部分展开了研究与开发,系统的软件设计主要分为三大模块： 温湿度模块：完成了DHT91驱动程序、监护终端应用程序设计和监护中心数据接收与参数信息动态显示设计。DHT91驱动被封装成字符型驱动,因内核编译时没有开启浮点运算支持,温湿度信息的数据补偿放在应用程序中完成。监护中心则采用CDC::Polyline(LPPOINT1pPoints, int nCount)函数绘制画出数组中温湿度数据,数据传输采用TCP/IP协议。 视频模块程序设计：完成了USB摄像头驱动的移植、V4L2监护终端视频现场采集和监护中心视频显示设计。视频编码库选用T.264,摄像头输出JPEG图像,而T.264编码接口支持YUV4：2：0格式,系统首先使用JPEGLIB编码库将图片解码为RGB数据,后转化为YUV数据并以4：2：0格式采样,最终将得到的数据T.264编码。监护中心工作与其相反,先将T.264码流解码,后JPEGLIB编码为JPEG图片,最终利用IStream和OleLoadPicture0函数加载,IPicture接口的Render0函数显示。 音频模块程序设计：音频模块实现了双方的语音交互功能。首先进行了声卡的移植工作,之后利用声卡驱动提供的/DSP文件接口实现了监护终端的录音和回放设计。监护中心则利用了WINDOWS提供的低层音频函数完全的接管音频设备并实现的监护中心语音部分的设计。 本文研究的远程监护系统具有可移植性强、系统设计人性化、灵活性强等优点,同时具有丰富的客户端软件资源,可以数据保存、视频录制、截图、录音、阈值报警等多种功能,能完善的帮助人们解决老人的家庭护理问题。
[Abstract]:China has rapidly entered the aging stage, the increasing number of elderly people in need of care and the current lack of medical resources and uneven distribution of increasingly prominent contradiction. Based on the technology of embedded electronics, network communication and sensor information fusion, this paper designs a kind of remote family medical monitoring system based on the model of "home, network and doctor" from the angle of sustainable economic development. The traditional nursing care in hospital can be grafted into the family environment through Internet, which can solve the daily nursing problems of the elderly and realize the outward extension of the nursing function of the hospital. In this paper, the software architecture and hardware architecture of embedded remote home monitoring terminal are described in detail. The hardware is based on ARM920T as the core processor, and the 32-bit microcontroller S3C2440 designed by SAMSUNG as the core. The hardware is based on the external sensor DHT91,. The hardware of the system is composed of USB interface camera, voice input and output device and other peripheral devices. The software base monitoring terminal is developed on the platform of Linux2.6, and the monitoring center is designed by multi-thread based on VC MFC. This paper focuses on the research and development of the software of embedded remote monitoring system. The software design of the system is mainly divided into three modules: temperature and humidity module: the DHT91 driver is completed. Monitor terminal application program design and monitor center data reception and parameter information dynamic display design. DHT91 driver is encapsulated into a character drive, because the kernel compilation does not turn on floating point operation support, Data compensation for temperature and humidity information is done in the application. CDC::Polyline (LPPOINT1pPoints, int nCount) function) is used to draw the temperature and humidity data in the array, and TCP/IP protocol is used to transmit the data. Video module program design: completed USB camera driven transplant, V4L2 monitoring terminal video scene acquisition and monitoring center video display design. The video coding library selects T.264, the camera outputs the JPEG image, and the T.264 coding interface supports the YUV4:2:0 format. The system first uses the JPEGLIB coding library to decode the picture into RGB data, and then converts the picture to YUV data and samples it in 4:2:0 format. The data will eventually be T. 264 encoded. On the contrary, T.264 code stream is decoded, then JPEGLIB is encoded into JPEG picture. Finally, the IStream and OleLoadPicture0 functions are used to load, and the Render0 function of IPicture interface is displayed. Audio module program design: audio module to achieve the two sides of the voice interaction function. Firstly, the sound card is transplanted, and then the recording and playback design of the monitoring terminal is realized by using the / DSP file interface provided by the sound card driver. The monitoring center uses the lower level audio function provided by WINDOWS to completely take over the audio equipment and realize the design of the voice part of the monitoring center. The remote monitoring system studied in this paper has the advantages of portability, humanization of system design, flexibility and so on. At the same time, it has abundant client software resources, which can save data, record video, capture pictures, record, etc. Threshold alarm and other functions can help people to solve the problem of home care for the elderly.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TP277
本文编号：2322094
[Abstract]:China has rapidly entered the aging stage, the increasing number of elderly people in need of care and the current lack of medical resources and uneven distribution of increasingly prominent contradiction. Based on the technology of embedded electronics, network communication and sensor information fusion, this paper designs a kind of remote family medical monitoring system based on the model of "home, network and doctor" from the angle of sustainable economic development. The traditional nursing care in hospital can be grafted into the family environment through Internet, which can solve the daily nursing problems of the elderly and realize the outward extension of the nursing function of the hospital. In this paper, the software architecture and hardware architecture of embedded remote home monitoring terminal are described in detail. The hardware is based on ARM920T as the core processor, and the 32-bit microcontroller S3C2440 designed by SAMSUNG as the core. The hardware is based on the external sensor DHT91,. The hardware of the system is composed of USB interface camera, voice input and output device and other peripheral devices. The software base monitoring terminal is developed on the platform of Linux2.6, and the monitoring center is designed by multi-thread based on VC MFC. This paper focuses on the research and development of the software of embedded remote monitoring system. The software design of the system is mainly divided into three modules: temperature and humidity module: the DHT91 driver is completed. Monitor terminal application program design and monitor center data reception and parameter information dynamic display design. DHT91 driver is encapsulated into a character drive, because the kernel compilation does not turn on floating point operation support, Data compensation for temperature and humidity information is done in the application. CDC::Polyline (LPPOINT1pPoints, int nCount) function) is used to draw the temperature and humidity data in the array, and TCP/IP protocol is used to transmit the data. Video module program design: completed USB camera driven transplant, V4L2 monitoring terminal video scene acquisition and monitoring center video display design. The video coding library selects T.264, the camera outputs the JPEG image, and the T.264 coding interface supports the YUV4:2:0 format. The system first uses the JPEGLIB coding library to decode the picture into RGB data, and then converts the picture to YUV data and samples it in 4:2:0 format. The data will eventually be T. 264 encoded. On the contrary, T.264 code stream is decoded, then JPEGLIB is encoded into JPEG picture. Finally, the IStream and OleLoadPicture0 functions are used to load, and the Render0 function of IPicture interface is displayed. Audio module program design: audio module to achieve the two sides of the voice interaction function. Firstly, the sound card is transplanted, and then the recording and playback design of the monitoring terminal is realized by using the / DSP file interface provided by the sound card driver. The monitoring center uses the lower level audio function provided by WINDOWS to completely take over the audio equipment and realize the design of the voice part of the monitoring center. The remote monitoring system studied in this paper has the advantages of portability, humanization of system design, flexibility and so on. At the same time, it has abundant client software resources, which can save data, record video, capture pictures, record, etc. Threshold alarm and other functions can help people to solve the problem of home care for the elderly.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TP277
【参考文献】
相关期刊论文 前10条
1 乔建魁;媒体控制接口(MCI)编程应用[J];电脑编程技巧与维护;2005年11期
2 关学忠;李洪宇;李国盛;;基于WinCE的ARM视频监控系统[J];单片机与嵌入式系统应用;2006年12期
3 温文玉,李敏,黄廷磊;音频设备UDA 1341驱动技术[J];桂林电子工业学院学报;2005年05期
4 刘文;王晓辉;盛文婷;李智;;基于ARM9的UDA1341驱动在Linux下移植方法[J];电子设计工程;2011年14期
5 龙世瑜;魏武;卢碧燕;;基于ARM嵌入式的视频监控系统的设计[J];电子设计工程;2011年17期
6 葛少云,王澍,张群华,贾宏杰;基于ActiveX技术的配电网运行方式系统[J];继电器;2004年13期
7 沈俊,葛燧和;计算机系统中的YUV[J];计算机工程;2000年01期
8 杨伟;刘强;顾新;;Linux下USB设备驱动研究与开发[J];计算机工程;2006年19期
9 张鹏;孙世磊;刘瑞北;何明聪;;LINUX+ARM下的USB驱动开发[J];计算机工程与科学;2006年03期
10 张弋,何晓,李艳军,徐晓东;多媒体控制接口在Windows编程中的应用[J];计算机应用研究;2002年03期
相关硕士学位论文 前10条
1 魏赵平;基于ARM的嵌入式系统研究及音频驱动实现[D];西安电子科技大学;2007年
2 严彬彬;基于ARM的远程家庭监护智能终端系统的研制[D];山东大学;2007年
3 况蕴玲;基于H.264的嵌入式家庭远程视频监控系统的设计与实现[D];电子科技大学;2007年
4 施瑞;基于Internet的机器人远程控制研究[D];南京林业大学;2007年
5 黄恒强;基于ARM和Linux的嵌入式远程视频监控系统设计[D];南京理工大学;2008年
6 梁丹;我国远程医疗的影响因素分析及其对策研究[D];华中科技大学;2008年
7 李保国;基于嵌入式ARM的远程视频监控系统研究[D];南京理工大学;2009年
8 华嘉伦;基于ARM的低成本可视化的温湿度自动控制系统[D];江南大学;2009年
9 闫红超;以太网数字语音广播系统的设计与实现[D];西南交通大学;2010年
10 刘哲峰;嵌入式Linux音频设备的驱动设计与研究[D];太原理工大学;2010年
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