This protocol through a virtual driver transfers data during network interface, reduces the influence of system kernel. 该协议通过一层虚拟驱动在用户空间和网络接口之间直接传递数据,将协议处理提到用户空间实现,简化了通信的层次,减少了系统核心的干预。
This network testing system is mainly made up of basic elements such as sensors, data acquisitions, network interface, display, universal computer software and hardware, etc. 本设计完成的网络测试系统主要由传感器、信号调理、数据采集、网络接口、显示以及通用计算机硬件和软件等基本要素组成。
OPC interface is used to achieve real-time interaction with the DCS, and AJAX technology is used to complete Real-time data refresh for network interface, and the design of real-time diagnosis screen. 利用OPC接口,实现与DCS的实时交互,获取实时数据,运用AJAX技术,实现网络界面数据的实时刷新,完成实时诊断画面的设计。
Dual-machine scheme is needed for the real time system, such as electric power schedule data network. Man-machine interface and the backup of data and working situation are designed based on RPC of SUNOS caused of its specialties. 对于电力调度数据网这样的实时系统,必须进行双机设计,考虑SUNOS下的RPC特性,在双机软件实现方案中,对于人机界面和数据工况备份部分采用RPC方式实现。
Also the data frames from network interface will be checked, transformed into serial data and sent to serial equipment. 对来自网络接口的数据帧进行判断,转换成串行数据并送往串行设备。