Because of its prominent advantages , high reliability and distinct design , canbus is one of the most promising field bus , and is widely applied in product fields and most of the control system network , and acquired high praise as well Can总线由于其卓越的特性、极高的可靠性和独特的设计,已被证明为具有广泛应用的现场总线之一,大量用于多种控制系统,并取得了良好的效果。
Seismic safety assessment method and flow load control problem of power system are discussed deeply , and the remarkable criteria of current under normal process and system network model are suggested 摘要对电力系统的地震安全性分析与负荷控制问题进行了深入研究,建立了系统正常运行情况下各支路的负荷电流的评价准则和电力系统的网络分析模型,分析了传统潮流分析方法的优、缺点。
This paper studies some basic network cells during establishing ventilation and air conditioning systems network model of the underground excavation cluster of hydropower station by the way of cfd numerical simulation combined with model experiment 本文采用cfd数值模拟与模型试验相结合的方法,对地下水电站洞室群通风空调系统网络模型建立过程中的几个关键的网络基元进行了研究。
On the other hand , it is difficult to connect fieldbus to office network which mostly built in ethernet protocol . industrial ethernet will be the main orientation of control system network and can easily realize amalgamation of devices network with office network 但是传统的现场总线在设备级上已广泛使用并仍将长期存在,现实的情况是需要在不改变已有现场总线的基础上实现与企业信息网络的集成。
At last , the paper analyzes the system structure and system network ' s design principle of pacs , and describe emphasisly the demand analysis and the database structure . then this part introduces the mini - pacs main function module finished in this research 最后,本文对pacs的体系结构和系统网络设计原则作了分析,重点描述了pacs的需求分析和数据库的结构,还对本课题完成的小型pacs的主要功能模块作了介绍。