基于STC12C5A60S2单片机GPS信号控制系统设计 - 图文

摘要

摘要

全球定位系统(GPS)是由美国国防部开发的一种先进的无线电导航系统。该系统能够全天候、全方位的为海陆空用户提供连续的、高精度的三维坐标、三维速度和时间等信息。它所具有的诸多优点是其他导航设备所无法比拟地。目前GPS技术，已经被用在各行各业中。GPS系统的部分用户主要是使用各种型号的GPS接收机。

本设计以STC12C5A60S2单片机为核心，通过GPS 接收模块（UBLOX

-4T），接收GPS卫星信号，然后将数据发送给单片机的COM2串口，经过单片机内部进行数据处理后，在通过单片机COM1串口，发送给无线电台模块（FT55）,最后通过主电台接受信号在PC上显示数据。

关键词 GPS,STC12C5A60S2单片机，无线电台

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Abstract

Abstract

Global Positioning System (GPS) developed by the U.S. Department of Defense, an advanced radio navigation system. The system is capable all-weather, full range of air, sea and land users to provide continuous, high-precision three-dimensional coordinates, three-dimensional velocity and time information. It has many advantages other navigation devices can not be compared to. GPS technology has been used in all walks of life. The GPS system of some users to use various types of GPS receivers.

This design microcontroller to STC12C5A60S2 as the core GPS receiver module (UBLOX-4T), to receive GPS satellite signals, then sends the data to the COM2 serial port of the microcontroller, and data processing after the internal microcontroller microcontroller COM1 serial port, send radio Taiwan module (FT55), and finally receive the signal through the main stations to display data on a PC.

Keywords GPS,STC12C5A60S2microcontroller，Radio

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目 录

摘要 ....................................................................................................................... I Abstract ................................................................................................................ II 第1章 绪论 ........................................................................................................ 1

1.1 课题背景 .............................................. 1 1.2 选题意义和依据 ........................................ 2 1.3课题国内外现状 ......................................... 3 1.4研究主要成果 ........................................... 3 第2章 GPS全球定位系统介绍及UBLOX-4T接受模块介绍 ........................... 5

2.1 GPS全球定位系统 ....................................... 5 2.1.1 GPS的历史和发展 ................................... 5 2.1.2 GPS定位的基本原理 ................................. 6 2.1.3 GPS接收机的定位流程 ............................... 6 2.2 UBLOX-4T接收模块介绍 .................................. 7 2.2.1 GPS接收机数据格式 ................................................................... 7 2.2.2 UBLOX-4T模块硬件介绍 ............................................................. 8 2.2.3 UBLOX-4T技术参数 ................................................................... 10 2.2.4 接收机介绍概述 ......................................................................... 11 2.3 本章小结 ............................................. 11 第3章 STC12C5A60S2单片机介绍 ................................................................. 12 3.1 STC12C5A60S2单片机内部结构和引脚芯片图 ............... 12 3.1.1 主要功能特性及芯片图 ............................................................ 12 3.1.2 引脚功能说明 ............................................................................ 13 3.2 本章小结 ............................................. 15 第4章 FT55无线电台介绍 ............................................................................. 16

4.1 FT55无线通讯模块特点 ................................. 16 4.2 FT55实物图和电路图 ................................... 17 4.3 FT55引脚说明 ......................................... 19

4.4 无线天线注意事项 ..................................... 19

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4.5 本章小结 .............................................. 20 第5章 系统硬件设计介绍 ............................................................................... 21

5.1 硬件接线 .............................................. 21 5.2 工作原理说明 .......................................... 23 5.3 硬件总系统结构图 ...................................... 23 5.4 系统硬件实物图 ........................................ 25 5.5 本章小结 .............................................. 26 第6章 系统软件设计介绍及调试 ................................................................... 27 6.1 STC12C5A60S2单片机串口调试程序 ........................ 27

6.1.1 串口1介绍 ................................................................................. 27 6.1.2 串口2介绍 ................................................................................. 32 6.2 单片机主控程序流程图及主程序 .......................... 35 6.3 实验调试遇到的困难和解决办法 .......................... 41 6.4 本章小结 .............................................. 41 结论 ..................................................................................................................... 42 参考文献 ............................................................................................................. 43 致谢 ..................................................................................................................... 44 附录1 .................................................................................................................. 45 附录2 .................................................................................................................. 50 附录3 .................................................................................................................. 54 附录4 .................................................................................................................. 59 附录5 .................................................................................................................. 62

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