嵌入式数据采集终端的网络安全自感知模块设计

Design of Network Security Self-sensing Card for Data Acquisition Terminal

针对嵌入式数据采集终端网络安全自感知功能的需求,采用Cortex-M3处理器设计了一块专用的网络安全自感知模块。模块采用MCU自带的网络控制器扩展1路100M以太网接口,用于与网络安全管理装置通信,上报信息,并扩展1路RS232接口用于与数据采集终端通信,采集所需的网络安全事件,解决了传统数据采集终端网口不够、软件扩展困难的问题。

According to the requirement of network security self-sensing function for embedded data acquisition terminal,a special network security self sensing card is designed by using Cortex-M3 processor.The module adopts the network controller of MCU to expand one 100M Ethernet interface,which is used to communicate with the network security management device and report information.In addition,one RS232 interface is extended to communicate with data acquisition terminal and collect required network security events,so the problems of insufficient network port and difficult software expansion of traditional data acquisition terminal are solved.