Design And Implementation Of A Linux-based Software System For Portable Monitor

Medical devices play an important role in promoting progress in medical science, keeping human health and improving the people's quality of life. The development of science and technology has seen various high techeniques be introduced to medical devices. For example, a patient monitor can accurately measure the physiological indices of patients for diagnosis and treatment purpose. Portable monitor is small, lightweighted, user-friendly, therefore widely used in various circumstances.Embedded Linux and MiniGUI provide a development platform, on which hardware-independent software systems can be developed to achieve portability for monitors. Embedded Linux can manipulate hardwares conveniently, and it supports network communication and multi-threading. MiniGUI provides message-loop and event-driven programming mechanism, and it can be used to implement standard user interface. It also provides a WIN32-like API to ease the burden of developing embedded systems.The organization of this paper is as follows, chapter one gives a general description of the hardware architecture and software system of a portable monitor, before discussing the pros and cons of using an embedded Linux and MiniGUI based platform in portable monitor development. Chapter two gives a brief review of embedded Linux and MiniGUI, before the requirement of software system framework for portable monitor is analyzed in chapter three. Chapter four presents the design of this framework in depth, including its user interface model, data collection model, data analysis model, buffer model, display model, print model, file management model and network communication model. Chapter five uses this framework to develop a portable maternal/fetus monitor, and the implementation is reviewed in chapter six. Chapter seven gives some concluding remarks before outlining future work.