基于GPS的同步时钟研制及其在电力系统中的应用

Development of GPS Based Synchronous Clock and Its Application in Electric Power System

介绍了基于GPS的时钟同步PC卡的设计与应用。基于GPS技术,利用80C320高性能单片机、PC机PCI总线、BIOS时钟中断和程序常驻内存技术,成功解决了在不影响原系统的正常运行的的情况下,利用GPS时间来同步不同系统时钟这一技术难题。详细介绍了GPS同步时钟PC卡的硬件电路设计和软件编程方法。最后介绍了该GPS PC卡在湖北某热电厂不同控制系统之间时钟同步方面的应用。

The design and application of the PC card of GPS based synchronous clock were introduced. With GPS technology,and by using of high performance 80C32,0 type single board computer, PCI bus of PC computer, BIOS clock interrupt and the technology of resident internal memory, the different system clocks could be synchronized with GPS clock while the normal operation of each system was not affected. The circuit design and the programming method of the PC card were presented in detail. The application of the PC card in the synchronization of different control systems of a thermal power plant in Hubei province was introduced as well.