GPS同步子母钟系统的研制

Development of synchronous princip al and subordinate clock system using GPS

传统的子母钟系统,以石英晶体振荡器为核心,利用母钟驱动子钟指针走时,随着时间的推移,不可避免地会出现走时误差,因而必须人工调校.论述了以单片微处器AMTEL89C2051为核心,由全球定位系统GPS进行高精度授时的子母钟系统,给出了系统结构和相关软件流程.本系统具有与GPS时间同步,无须人工调校的特点.

Traditional principal and subordin ate clock systemuse crystal as core parts,and the principal clock was driven by subordinate clock.With th e time going,the error will occur inevitably,so the clock must be adjuste d manuall.A new principal and subordi nate clock system was introduced in t his article,which use AT89C2051as core device,and use GPS to do high accurate time transmission.Systemstr ucture and software flowwere given.This system has the features of synchroni zation with GPS,and needn' t adjust ma...