Software Design For Master Center Of Wireless Ward Calls Wireless System Based On Zigbee

Ward call system in the modern medical system has a very important role in improving people's health care, and plays an important role in promoting the development of our country's medical industry. The current wards has mainly single-call system, call program for multi-bus bas, CAN bus cable calling program, and they are wired.The advantage is low cost, disadvantage is the complex wiring, the anti - weak electrical interference. In this paper, withing the shortcomings of the traditional ward calls, using ZigBee wireless communication technology and ARM9 microprocessor design ward call system of main control center. So that eliminates the main control center wiring difficulties, to improve the reliability of the call, and have the function that recept information for mobile and enhanced function of host center for modern hospital's needs.Design of this paper is mainly the use of ZigBee wireless communication technology to build wireless networks, using ARM9 microprocessor for data processing and display. Through the ZigBee protocol stack to the embedded Linux operating system analysis and migration, so ARM9 microprocessor can control the host-centric wireless networking, as well as wireless networks can make use of ZigBee device driver with the main control center for data transmission, and through the Qt graphical interface unit number, bed number, call the contents of the display. The main function of the platform can be achieved ward call request terminal display, response, and the main control center in the patient's heartbeat, pulse monitor, real-time understanding of the patient's condition.ZigBee protocol stack design and migration gives the idea of software, and designed and implemented to achieve the ZigBee device drivers. To achieve human-machine interface that can interact with a call to the underlying driver functionality, and realized with a memory read function in excel table to achieve the curve graph of the drawing, and you can check the patient history, preview pictures, as well calendar clock and other additional features.