摘要
对于分时段电量的准确计量、数据的准确采集、停电等事件等的记录而言,电能表和采集终端时钟的准确性十分重要,而目前时钟误差若超过阀值,用采系统无法进行广播校时。该文自定义了JXPTP协议,先对主站时间进行GPS校准,再采用JXPTP协议校时,最后调整智能表的时钟,实现用采系统中的时钟同步。该方法只需在原有网络上添加时间同步报文,这些报文只占用少量网络资源,建设成本低,实际应用性强,能够让用电信息采集系统更好地为电网服务。
Aiming at the problem of the clock accuracy in the electric information acquisition system master station,the JXPTP protocol has been defined based on the traditionaltransmission protocol of power system. It add a few sync message to original web, few network resources occupied, low construction cost, and has a strong practicability. Finally the electric energy meter clock will be adjusted to realize time synchronization step by step, so as to guarantee the time consistency of all equipments in system clock.
出处
《电测与仪表》
北大核心
2016年第S1期157-159,共3页
Electrical Measurement & Instrumentation
关键词
用采系统
时钟同步
JXPTP
electric information acquisition
clock synchronization
JXPTP protocol
