基于單片機(jī)的簡易GPS定位信息顯示系統(tǒng)設(shè)計

電子機(jī)電論文編號:JD617  論文字?jǐn)?shù):19968,頁數(shù):43

目    錄
引    言 1
第1章 GPS簡介及基本理論 2
1.1 關(guān)于GPS的概述 2
1.2 GPS的組成 3
1.3 GPS信號結(jié)構(gòu) 6
第2章 硬件電路設(shè)計 7
2.1 GPS內(nèi)部最小系統(tǒng)介紹 7
2.2顯示電路 10
2.3 控制系統(tǒng)的硬件原理 12
第3章 軟件部分設(shè)計 14
3.1 GPS25-LVS的信息輸出格式 14
3.2 單片機(jī)的信息接收處理 15
3.3 主程序設(shè)計 15
3 4數(shù)據(jù)處理子程序設(shè)計 17
第4章 調(diào)試 20
結(jié)論與展望 21
致    謝 22
參考文獻(xiàn) 23
附錄A：總圖 24
附錄B：外文文獻(xiàn)及譯文 25
附錄C： 主要參考文獻(xiàn)及摘要 31
附錄D： 部分源程序 33

摘    要
GPS是Global Positioning System的縮寫，即全球定位系統(tǒng)。其目的是在全球范圍內(nèi)對地面和空中目標(biāo)進(jìn)行準(zhǔn)確定位和監(jiān)測。
本設(shè)計是基于AT89C51單片機(jī)來實現(xiàn)的簡易GPS定位信息顯示系統(tǒng)。本控制系統(tǒng)主要完成接受數(shù)據(jù)，時間顯示、經(jīng)度顯示、緯度顯示等常規(guī)功能。單片機(jī)與OEM板采用串口通信，由單片機(jī)接受GPS信息，對其解碼，再通過LED顯示信息。GPS的信息顯示是輪流顯示時間、經(jīng)度、緯度的。
本文介紹使用GARMIN公司的GPS25-LVS系列OEM (Original Equipment Manufacturer)接收板及單片機(jī)實現(xiàn)實時時間、經(jīng)緯度等綜合信息顯示的設(shè)計方法。通過對GPS OEM板和LED顯示模塊的研究，設(shè)計了GPS定位信息的采集與顯示系統(tǒng)。重點介紹了利用單片機(jī)89C51對GPS OEM板的控制來實現(xiàn)定位數(shù)據(jù)的采集與傳送，以及將定位數(shù)據(jù)傳送至液晶模塊進(jìn)行顯示的過程。實踐證明，該系統(tǒng)顯示的時間非常精確、定位精度高，能滿足一般應(yīng)用項目的使用，具有一定的實用價值。
關(guān)鍵詞：單片機(jī)；數(shù)據(jù)采集；定位信息；GPS OEM板；LED顯示

The Simple Design Of GPS Positioning Massage Display Based On Single-Chip Microprocessor
Abstract
GPS is the acronym for Global Positioning System,the Global Positioning System.Its purpose is on a global scale aerial targets on the ground and accurate positioning and monitoring.
The design is based on the AT89C51 microcontroller to achieve the simple GPS positioning information display system. The main control system completed accept data，show time, longitude, latitude and other conventional features.SCM and OEM board serial communication links used by the microcontroller to accept GPS information, decode it, and then through the LED display information.GPS information is displayed cycle time, longitude and latitude.
This paper describes the use of GARMIN's GPS25-LVS series of OEM (Original Equipment Manufacturer) receiving board and SCM implementation the time,latitude and longitude of real-time, and other comprehensive information shows that the design method.Through studying on GPS OEM board and LED display module,the collection and display system of GPS’s information are designed.By using single chip computer 89C51,the GPS OEM board is controlled,thus the collection and transmission of the orientation data are realized.The orientation data are delivered to LED model for display. The practice proves that the time displayed by the system is very accurate,and the precision of orientation is high.The system satisfies the usage of the general application and certainly offers p ractical value.
Keywords:Single-Chip;Data Acquiring;Orientation information;GPS OEM board; LED display