企业自备铁路信号计算机联锁系统的研究与设计

介绍了适用于企业自备铁路的信号计算机联锁系统的控制需求与设计方案,重点阐述了故障——安全原理在铁路信号系统中的应用与实现。     

DYNAMIC LABELING BASED FPGA DELAY OPTIMIZATION ALGORITHM

IntroductionIn recentyears,many FPGA technology map-ping algorithms for performance optimization havebeen presented[1～ 3 ] .Among them,DAG- MAP is arepresentative algorithm[3 ] .This algorithm is pro-grammed into a package and it mainly consists ofthree parts:1 preprocessing procedures transforman arbitrary Boolean network into a two- inputnet-work;2 the DAG- MAP algorithm maps the two-input network into a K- LUT FPGA network withminimum delay;3 postprocessing procedures per-form ar…