液晶GPS定位信息显示器设计(附仿真图,程序)
液晶GPS定位信息显示器设计(附仿真图,程序)(课题说明书,开题报告,中期检查表,论文8000字)
摘 要 全球卫星定位系统(GPS)是一个由美国国防部门部署安排并且由第50航空编队控制的全球卫星导航系统(GNSS)。GPS是目前世界功能性较全的卫星导航系统,本着人道主义免费使用,GPS目前在民用导航上使用较广。本文需显示定位经纬度、高度和实时时间,设计的重点在GPS接收机,在GPS接收机的电路板中起主要功能的是GPS-OEM板,用来接收信号流和发送数据流,为此选择了GPS-LVS系列的OEM板,GPS-OEM板在与单片机串口通信时需要进行平转换,为此选择RS-232电平转换,单片机上选择AT89S51作为本次设计的重要部件用来接受和存储信息数据,为满足设计需求显示器选择了LCD显示器。通过这些部件做一个简单的GPS定位显示器。
关键词 AT89S51单片机; GPS-LVS系列OEM板; RS-232电平转换; LCD显示器
Design of LCD GPS Positioning Information Display
Abstract Global Satellite Positioning System (GPS) is a global satellite navigation system (GNSS) deployed by the United States Department of Defense and controlled by the 50th aviation formation. GPS is a satellite navigation system with full functions in the world. It is free to use in the light of humanitarianism. At present, GPS is widely used in civil navigation. This paper needs to display the longitude, latitude, height and real-time time of positioning. The design focuses on the GPS receiver. In the circuit board of the GPS receiver, the main function is the GPS-OEM board, which receives the signal flow and sends the data flow. For this reason, the OEM board of GPS-LVS series is selected. When the GPS-OEM board communicates with the serial port of the single chip computer, the level conversion of RS-232 is needed, and the single chip computer is selected. AT89S51 is selected as an important part of this design to receive and store information and data, and LCD display is selected to meet the design requirements. Make a simple GPS positioning display through these components. [来源:http://Doc163.com]
Keywords AT89S51 - the LVS series; GPS OEM board; RS - 232 level transformation;LCD monitor;
硬件电路设计
系统硬件电路的组成部分主要有电源、单片机上的电复位、RS-232电平转换、键盘、AT89S51单片机、液晶显示器和GPS-OEM接收板。RS-232(CMOS/TTL电平转换)电路可以实现将GPS-OEM板发送的一组串行数据信息传输到单片机的串行口端,可以知道处理后用键盘选择可方便在显示器上显示信息,因而再传递到LCD液晶显示器。可以清楚知道单片机上具有上电复位作用的电路乃上电复位电路的途径上。电源电路可供应稳定、有效的+5V电源给每个电路。GPS-OEM板设置采用预留的RS-232口
[资料来源:Doc163.com]
目录
摘要及关键词 1
1 绪论 1
2 硬件电路设计 1
2.1方案对比及确定 2
2.2 GPS信号接收、处理电路 3
2.3 RS-232电平转换电路 3
2.4 单片机及其外围电路 4 [资料来源:https://www.doc163.com]
2.5 液晶显示器 5
3 系统的软件设计 6
3.1 系统的总体流程 6
3.2 初始化子程序 7
3.3GPS接收与处理子程序 8
3.4 键盘子程序 10
3.5 显示子程序 10
4 调试及性能分析 13
4.1 GPS-OEM板的设置 13
4.2 系统的硬、软件调试 13
5 总结 14
参考文献 14
致 谢 16
附录 17 [资料来源:http://doc163.com]