嵌入式技术在电力串口设备网络化中应用

在嵌入式uCLinux系统中将需要网络化的串口设备置入一个嵌入式网络化装置管理下以实现在串口和以太网之间的数据通信。设计的系统由上位机、串口设备(智能仪表)、嵌入式网络化装置等组成;网络化装置的处理器采用ARM7TDMI内核的32位高速处理器S3C4510B。系统软件包括:数据包处理和转发、各级任务调度、硬件设备驱动等。网络化装置中应用程序包括:人机界面显示、数据处理、数据包转发、网络通信等。网络数据通信采用TCP协议,低优先级数据采用UDP协议。该方案设计的装置得到实现,应用结果证明设计方案高效、可靠。

Application of embedding technology in networking of serial-port devices

The electric devices with serial port are put under the management of embedded networking equipment in uCLinux embedded system environment to realize the data communication between serial bus and Ethernet.The designed system is composed of superordinate computer,serial-port devices(intelligent instrument)and embedded networking equipment,which applies 32-bit S3C4510B processor with the core of ARM7TDMI.The system software includes data packet processing and forwarding,assignment scheduling at all levels,hardware device drivers and so on.The application software of embedded networking equipment includes man-machine interface,data processing,data package forwarding,network communication and so on.Network data communication adopts TCP(Transfer Control Protocol),while low-priority data takes UDP(User Datagram Protocol).The application of the designed system proves its effectiveness and reliability.