综合料场PLC控制系统_专业论文_技术文章_中国自动化仪表网 关键词： PLC; 综合料场; 光纤环网; 控制 [gap=790]Key words: PLC; Comprehensive materials yard; Optical fiber ring network; Control
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The emphasis is on the characteristics of WDM fiber optic network, the principle of optical switching by selecting wavelength. At last the WDM star and ring networks are addressed as an example.
重点介绍了波分复用(WDM)光纤网络的特点、通过选择光波长实现光交换的原理、WDM星形和环形光网络的构成等。
A real-time Ultrahigh-speed optical fiber network design concept was proposed for fly-by-light aircraft in this paper. The advantages of the star and ring topology structure were integrated.
综合星型及环形拓扑结构的优点，提出一种具有超高速实时光纤网络结构的飞行器光传操纵设计方案。
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