摘要
设计并实现了一个基于ARM微处理器的CAN/Ethernet嵌入式网关,并将其应用于远程视频监控系统中。监控前端控制摄像头采集视频数据,压缩之后通过CAN/以太网嵌入式网关实现视频数据和控制信息的远程交互。其硬件系统由集成了CAN控制器的ARM微处理器LPC2294、网卡芯片RTL8019AS以及CAN收发器组成。软件系统分为3部分:协议转换程序、CAN协议模块和以太网协议模块,并采用嵌入式操作系统μC/OS-Ⅱ对任务进行管理和调度,从而提高了系统的稳定性和可靠性。
An embedded gateway of CAN/Ethernet is designed and used in remote video monitoring.The camera captures video signal which is compressed and exchanged via the CAN/Ethernet embedded gateway to the Ethernet.Its hardware system consists of the LPC2294 ARM MCU which includes four controllers of CAN bus,the RTL8019AS NIC and the transceiver of CAN field bus.The software system includes three parts： protocol transition module,CAN protocol module and Ethernet protocol module.In order to improve the stabilization and dependability of the system,the embedded RTOS μC/OS-Ⅱ is adopted.
出处
《河北科技大学学报》
CAS
北大核心
2011年第5期488-491,共4页
Journal of Hebei University of Science and Technology
基金
河北省自然科学基金资助项目(F2005000077)
关键词
远程视频监控
嵌入式网关
CAN总线
协议转换
remote video monitoring
embedded gateway
CAN field bus
protocol transition
