针对家庭护理问题,设计并实现了基于CAN总线的嵌入式智能防褥疮气垫床。阐述了该智能气垫床的硬件系统设计,软件系统设计及实现方法。气垫床控制模块由AT90CAN128单片机、气垫床、压力传感器、气泵和电磁阀门等构成。采用S3C2440作为主控制模块,以WindowsCE操作系统为核心开发的人机交互界面(HMI)通过CAN总线实时传递各个功能模块命令,能够实现气垫床的预定功能,给出了实验实测数据,并且能够实现即插即用的模块化设计。 For home care issues, the design and implementation of an embedded intelligent anti-decubitus cushion bed based on CAN bus. The hardware system design, software system design and implementation method of the intelligent air mattress are expounded. Air bed control module by AT90CAN128 microcontroller, air bed, pressure sensors, pumps and solenoid valves and other components. S3C2440 is adopted as the main control module and human-machine interface (HMI) developed with WindowsCE operating system as the core is used to transmit various function module commands in real time through the CAN bus, so as to realize the predetermined function of the air cushion bed and provide experimental measured data, Plug and play modular design.