基于GPS模块的数据采集系统的设计+单片机源程序
关键词： GPS定位；数据采集；单片机
Data Acquisition System Based On GPS Module
Abstract:GPS technology is in the military affairs, such numerous disciplines domains as communication, meteorological phenomena, exploring, navigating, remote sensing, earth measurement, the earth motive force and astronomy, etc. get extremely extensive application, have promoted the swift and violent development of science and technology, the abundant and human even scientific culture life. Now, the appearance of GPS is designed and already turned to portable development, steps foot on common people's life progressively. So, It is very important for researching of GPS. Localization principle and technology of main research GPS of this text, programming and application of the one-chip computer, the function that the liquid crystal rejects and implementation method. Thus make out a set of design plans, through constant debugging and test, combine and finish the whole course received and shown in whole GPS data with the software and hardware. In this subject, will finish the holding type equipment of GPS positioning that a liquid crystal shows, and can show real-time time and longitude and latitude of the site sequentially. After this navigation system is finished, orienting the precision can reach 15m.
Keywords: GPS positioning; Data Acquisition; SCM(Single Chip Microcomputer)
目录
1 GPS系统介绍 1
1.1 GPS 的组成概况 1
1.1.1 空间星座部分 1
1.1.2 地面监控部分 2
1.1.3 用户设备部分 3
1.2 GPS 定位的基本方法 3
1.3 GPS 接收机的基本工作原理 4
1.3.1 码相关型通道 4
1.3.2 平方型通道 5
1.3.3 码相位型通道 6
1.4 GPS 接收机与提取定位数据 6
1.5 GPS_A01 模块 8
2 STC89C52单片机 9
2.1 STC89C52 单片机的内部结构及芯片图 9
2.1.1 主要功能特性 9
2.1.2 管脚说明 10
2.2 振荡器特性 12
2.3 芯片擦除 12
2.4 STC89C52 寄存器 13
2.5 时钟电路 14
2.6 复位电路 14
2.7 AT89C52 的串口模式 15
2.7.1 串行端口处于模式0 15
2.7.2 串行端口处于模式1 15
2.7.3 串行端口处于模式2 16
2.7.4 串行端口处于模式3 17
2.7.5 串行端口的波特率规划 17
3 液晶显示器（LCD） 18
3.1 主要技术参数和性能 19
3.2 外形尺寸图 20
3.3 模块的外部接口 21