Study And Application On The Smart Embedded Devices Used In The Hospital

Along with development and popularization of computer technology and network technology,pocket embedded equipment with single-chip computer has already applied extensively in industrial automation,official automation and building automation etc.To realize the long-distance data-collected, control and so on,the network has become a trend of the development of new generation embedded system.As the important department,hospital should be too.tt has important realistic significance and economic value to research the connection of embedded system and Internet.This paper describes the current hospital oxygen inhalation time of the status quo,developes a design based on the medical center's oxygen supply system automatically oxygen timer,focus on embedded TCP/IP technology in the application of Ethernet.Oxygen timer selects 8-bit microcontrollers STC12C2052,of which oxygen time signal acquisition uses infrared photoelectric capture.;network module uses the STC89C516 microcontroller chips;Realtek Ethernet chip choose the 10 Mbps RTL8019AS.Hardware mainly involves in SCM,infrared transceiver devices,and Ethernet network interface design,software is mainly oxygen timer module,RTL8019AS' s driver,the transplant of the ~ C/OS-II operating system and TCP/IP protocol design.Taking the resources of the embedded systems into account,after the paper introduces the TCP/IP protocol and message format,some TCP/IP protocol functions are reduced so as to adapt to the needs of SCM internet.In this paper,the system's workflow and TCP/IP various modules in flow charts are offered.On the basis of theμC/OS-Ⅱoperating system it realizes a network interface device drivers,the link layer protocol,ARP,ICMP,IP,UDP.Using TCP/IP real-time remote oxygen timer time status and the accumulated time data transmission.The note based on 8-bit microcontrollers the control of small embedded device networking is feasible,and for the future provide a basis to realize the remote data collection,remote diagnosis,remote software upgrades, achiving truly telemedicine.In the future provide a good platform for developing more medical automation equipment of the network.