GPS智能塔钟控制系统的研究  

Research on the Control System of GPS-based Tower Clock

作　　者：卫宏[1] 周国平[1] 

机构地区：[1]南京林业大学信息科学与技术学院,江苏南京210037

出　　处：《山西电子技术》2013年第1期86-88,共3页Shanxi Electronic Technology

摘　　要：本文研究的GPS自动校时塔钟控制系统是以STC89C51单片机为控制器,由GPS接收器、伺服电机、LED显示、语音报时等部分组成,具有自动校时、显示、报时等功能。通过GPS15XL-W接收芯片捕捉来自卫星的准确时间信息,以此为时钟源。利用单片机对接收到的时间信息进行提取和处理,并完成对单片机走时的校正。系统由单片机走时构成母钟,单片机向伺服电机发送脉冲驱动子钟走时。其优点是实现上电后的自动校时,改变了传统校时的不便,减少了机械误差,塔钟精度可达±1μs,没有累计误差。The design of GPS control system for tower clock consists of STC89C51 MCU, the GPS15-XL receivers, LED display, servo motors, voice timekeeping and other components with functions of automatic error correction, display and timekeeping. The design captures accurate time information from satellites by GPS15XL-W receiver chip, and collects and deals with the time information received from SCM, and then it adjusts the clock. The timing of SCM system makes up the master clock, and drives the secondary clock through giving out pulse to a servo motor. The system can also achieve the automatic error correction after power on, and im- proves the inconvenience of the traditional correction, reduces the mechanical errors. The accuracy of tower clock is up to ±1μs and there is no cumulative error.

关 键 词：GPS 伺服电机 单片机 实时校时 

分 类 号：TP216.2[自动化与计算机技术—检测技术与自动化装置]