Software Designing Of A Multifunctional Monitor Based On Linux

Recently, with the reform of health care, home health care and community hospitals and other medical model gradually rise in the medical field. Through remote medical technology, the medical model effectively alleviate the problem expensive and difficult to see a doctor. Portable multiparameter physiological monitor based on remote medical monitoring have been developed. This kind of monitor mostly use high performance embedded operating system as a platform to provide rich man-machine interface and network communication function.Linux operating system has been widely used in the monitor by the characteristics of open source, free and easy development.This thesis studies the multi functional monitor software design method based on Linux. The monitor can not only perform real-time monitoring in the local, but also be used for remote monitoring through the network. According to software system demand of the monitor, the thesis introduces the monitor software and the remote server software requirements, and put forward corresponding solution. The main contents of the thesis are as follows:(1) The transplantation of Embedded Linux Operating System. According to the monitor hardware and software requirements, the Linux operating system, bootloader kernel and root file system transplant.(2) The design of FPGA interface bus driver. By using the virtual kernel mechanism of Linux system, the mapping of the physical device to the user’s virtual address space is realized, and the operation interface is provided for the application program.(3) The software design and implementation of monitor. According to the demand of the monitor software, the thesis designs the ECG monitoring function, Oxygen monitoring function, blood pressure measurement, temperature measurement function and for post-operative drug infusion control function. In addition, the software is designed to monitor abnormal alarm, local storage and remote monitoring function.(4) The software design and implementation of remote server. The remote server needs to carry on the real-time monitor to monitor, so the software design of the remote server need to implement concurrent response mode, and the ability to monitor remote operation.The software of multi functions monitor based on Linux in the thesis has realized the ECG measurement function, blood pressure measurement, blood oxygen saturation measurement function and infusion control function. In addition, the thesis has also designs a remote server software as programmable software of monitor. The software has realized the centralized monitoring and remote monitoring function on multiple monitors.