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摘要：北斗卫星导航系统是中国正在实施的自主研发、独立运行的全球卫星导航系统。与美国GPS、俄罗斯格洛纳斯、欧盟伽利略系统并称全球四大卫星导航系统。北斗卫星导航系统由空间端、地面端和用户端三部分组成。北斗卫星导航系统，促进卫星导航产业链形成，形成完善的国家卫星导航应用产业支撑、推广和保障体系，推动卫星导航在国民经济社会各行业的广泛应用。52067
本设计是基于STC89C51单片机来实现简易的北斗卫星定位信息显示系统。本控制系统主要完成接收数据、时间显示、经度显示、纬度显示等常规功能。此方案基于单片机、北斗模块和1602液晶显示屏等硬件, 并应用C语言实现了北斗卫星信号的提取、显示。经过实践测试,这种接收机可以达到基本北斗卫星信息的接收以及显示，可以做到体积小、精度高、连续导航，并可广泛应用于个人野外旅游探险、出租汽车定位及海上作业等领域。
毕业论文关键词 ： 北斗卫星导航系统，单片机，液晶显示屏
Abstract：Beidou satellite navigation system is a global satellite navigation system which is developed by China and being implemented now.With the U.S. GPS, Russian GLONASS , European Galileo satellite navigation system ,they were known as the world's top four . Beidou satellite navigation system is made by three parts, they are the end of space , the ground -side and client-side . It promotes the formation of satellite navigation industry chain and form a complete system for the support, promotion and protection of the national satellite navigation application industry , it also promotes a wide range of satellite navigation applications in various sectors of the national economy of society.
The design is based on STC89C51 singlechip to achieve a simple positioning and information display system of Beidou satellite. The functions of the control system is mainly to complete the data acceptation, time display, longitude display , latitude display and other routine functions. This scenario which is based on microcontroller, Compass 1602 LCD module and other hardware, applies the C language to extract the signals of Beidou satellite and display the signals .After practical tests, this receiver could receive and display information from Beidou satellite. it could also achieve the features of the small size, high accuracy, continuous navigation , and is widely used in personal outdoor adventure , taxi positioning and marine operations and so on.
Keywords: Beidou satellite navigation system, STC89C51, 1602 LCD module
目 录
1 引言 4
1 北斗卫星导航系统的简介 4
1.1 北斗卫星的由来及发展 4
1.2 北斗卫星导航系统的构成与工作原理 5
1.3 本设计得主要工作 7
2 系统硬件设计 9
2.1 单片机简介 9
2.2 北斗定位模块 11
2.3 显示部分 15
3 系统软件设计 17
3.1 系统软件概述 17
3.2 软件程序的编写 18
4 系统调试 19
4.1 硬件调试 19
4.2 软件调试 20
4.3系统测试结果 21
结 论 22
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