基于单片机的集中授时器的设计  

Design of Global Centralizing Timer Based on SCM

作　　者：宋爱军[1] 叶强[1] 

机构地区：[1]中国计量学院,浙江杭州310008

出　　处：《仪表技术》2007年第8期45-47,共3页Instrumentation Technology

摘　　要：集中授时器是电视台获取北京标准时间,并将时间传送到播出控制和显示的系统。GCT从GPS卫星上接收到信号并提取出时间信号,经C51处理,通过LED将时间信号显示出来,用RS-422、RS-232串口接口与计算机通信,驱动大屏幕子钟、自动播出系统以及台标机等。GCT is the equipment that obtains standard time in Beijing from television station,and delivers the time to the system of control and display.In theory,as long as the time signal can be received and picked up from the GPS,then through microcontroller processing,the time can display on the LED.The serial communication is carried out using RS-422 and RS-232 between the computer,the automatically broadcast system and mark machine etc.

关 键 词：集中授时器 GPS接收器 C51 电视信号 

分 类 号：TM930[电气工程—电力电子与电力传动]