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利用虚拟仪器技术和网络通讯技术,使用TCP/IP通讯协议和LabVIEW中TCP节点,在LabVIEW软件平台上应用G语言编程实现与调度SCADA系统的数据通讯,SCADA系统数据解读和存储,并给出了具体实现方案.与SCADA系统进行网络通信的实现,为SCADA系统与电力部门其他应用系统的互联提供了技术支持. 相似文献
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Geometric and electronic properties of highly fluorinated fullerene C74F38 have been studied using the density functional theory at BLYP level with the double numerical atomic orbital basis sets with polarization functions (DNP). The optimized geometry of C74F38, quite different from that of C74, turns into a pronounced hexahedron shape because the six stabilizing isolated benzenoid rings tend to be as far apart as possible. The HOMO-LUMO energy gap and the binding energy of C74F38 indicate that C74F38 is not only kinetically but also dynamically stable. The shorter F-C bond lengths together with the analysis of the density of states and the Mulliken populations indicate that the F-C bonds in C74F38 have both covalent and ionic characters. The Mulliken populations show that the fluorine atoms obtain about 10 electrons from the C74 cage. 相似文献
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小型雷达的结构一体化设计 总被引:2,自引:0,他引:2
雷达与防空武器的集成是现代防空武器系统的一个发展方向,小型近程防空三坐标目标指示雷达就是基于这样的发展思路而开发设计的。体积小、重量轻是结构设计的要求,本文介绍此小型雷达的一体化设计思想和方法。 相似文献
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