Development Of Multiple Physiological Parameter Acquisition Display System Based On WINDOWS CE

To solve the serious problem of aging population and huge amounts of disabled people in China, reduce the burden of social security systems, promote social and economic development, this paper achieves a kind of intelligent monitor system using the embedded technology.The paper proposes the multi-physiological parameters collect and real-time display embedded intelligent system which can display, analysis, and storagea variety of physiological parameters in real time, and has limit alarm function. S3C2440 processor is used as a core contrllor. CAN bus is used to transfer physiological parameter signal, WindowsCE operating system is used to co-ordinate software interface and hardware operations. Draw a dedicated circuit board, and complete the Windows CE kernel cutting and system migration according to the hardware system. Achieved CAN interface using the MCP2510 and developed the implemented code of CAN bus driver, SPI driver and GPIO driver. Considered the huge data quantity and the high timeliness requirement, GUI used multi-threads technology and the custom message method to improve real-time property and the execution efficiency of the program. The project is programmed base on the object-oriented thinking, for the follow-up functional development. The experiment uses test program based on PC and which has high real-time capability to compare with this system. The CAN bus package receiving test is also used to test the real time capacity. Results show that the system has a strong real-time performance and stability, and its precision and measurement range can achieve the desired monitoring functions.