多冗余对时终端系统  

Time Synchronization Terminal System with Redundant Inputs

作　　者：吴永辉[1] 罗省贤 李向上[1] 

机构地区：[1]成都理工大学信息工程学院,成都610059

出　　处：《重庆工学院学报》2007年第19期100-104,114,共6页Journal of Chongqing Institute of Technology

摘　　要：设计了一种具有GPSI、RIG-B时间码、乳钟、RS232通信和人工录入等多路对时输入的对时终端系统,硬件采用MCU和CPLD组合结构,由MCU管理通信、显示等,而在CPLD内集成IRIG-B解码器和乳钟分频等模块.与传统时序电路相比,该系统具有集成度高、设计灵活等优点,能很好地满足许多领域尤其是军事上应用多冗余对时的要求.This paper designs a time synchronization system with inputs of GPS and IRIG-B time code and very stand crystal and RS232 communication as well as a keyboard, whose hardware uses MCU and CPLD combination structure, where MCU manages communication and display, etc. and CPLD integrates IRIG-B encoder and frequency division modules. Compared with traditional sequential circuits, .this system possesses the advantages of high integration level, flexible design, etc. and therefore, can meet the requirements in various fields, especially in the military for time synchronization with redundant inputs.

关 键 词：对时 IRIG—B时间码 同步 抽样 参数化分频计数器 CPLD 

分 类 号：TM621.6[电气工程—电力系统及自动化]