基于GPS的同步时钟的研制及其应用  

Design and Application of Synchronous Clock Based on GPS Technology

作　　者：胡志坚[1] 张承学[1] 杜志伟[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《小型微型计算机系统》2005年第8期1433-1435,共3页Journal of Chinese Computer Systems

摘　　要：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、PC机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GPSPC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 of a synchronous clock PC card is introduced in the paper. Based on Global Positioning System （GPS） technology, high performance 80C320 chip microprocessor, PCI bus, BIOS clock interruption and program staying in internal memory techniques are used in the design of the GPS PC card. The special advantage of the PC card is that it can synchronize the clocks of the application systems which clocks are based on different system clocks. The hardware circuit design and the software flow chart are explained in detail. Finally, an application example of using the GPS PC card to synchronize the clocks of different systems in a power plant is introduced.

关 键 词：全球定位系统(GPS) 同步时钟 80C329单片机 PC卡 内存驻留 

分 类 号：TM76[电气工程—电力系统及自动化]