【摘要】：隨著民用化的普及，衛(wèi)星導(dǎo)航系統(tǒng)越來(lái)越深入到人們的生活。無(wú)論在汽車(chē)導(dǎo)航、交通管理還是在國(guó)防安全領(lǐng)域，衛(wèi)星導(dǎo)航系統(tǒng)的影響越來(lái)越廣泛。同時(shí)由于嵌入式技術(shù)的發(fā)展，手持衛(wèi)星導(dǎo)航終端也成為衛(wèi)星導(dǎo)航領(lǐng)域的開(kāi)發(fā)熱點(diǎn)。 鑒于導(dǎo)航終端對(duì)處理速度要求較高，并且要求操作簡(jiǎn)單，本課題選擇以S3C2440為處理器，Linux為嵌入式操作系統(tǒng)的開(kāi)發(fā)平臺(tái)，設(shè)計(jì)了基于北斗系統(tǒng)的衛(wèi)星定位終端設(shè)備。論文首先對(duì)嵌入式開(kāi)發(fā)的相關(guān)理論以及衛(wèi)星導(dǎo)航定位的基本原理進(jìn)行了詳細(xì)的介紹，并對(duì)NEMA-0183的協(xié)議內(nèi)容進(jìn)行了說(shuō)明。其次，根據(jù)導(dǎo)航系統(tǒng)的實(shí)際需求，選擇了合適的系統(tǒng)硬件模塊，并對(duì)各模塊進(jìn)行了詳細(xì)的介紹，整個(gè)系統(tǒng)由基于S3C2440的控制模塊、北斗UM220模塊和無(wú)線傳輸模塊GTM900-C組成。在軟件方面，搭建了嵌入式Linux的開(kāi)發(fā)環(huán)境，包括BootLoader的移植、Linux內(nèi)核的移植、文件系統(tǒng)的構(gòu)建、Qt的移植等內(nèi)容，并且對(duì)觸摸屏驅(qū)動(dòng)的移植過(guò)程進(jìn)行了詳細(xì)的研究；隨后重點(diǎn)設(shè)計(jì)了系統(tǒng)的應(yīng)用程序，包括Linux下串口通信、衛(wèi)星定位模塊、無(wú)線傳輸模塊以及嵌入式電子地圖的設(shè)計(jì)，尤其深入分析了MapInfo電子地圖，構(gòu)建了基于SQLite的電子地圖數(shù)據(jù)庫(kù)，用于存放地圖的詳細(xì)信息。 通過(guò)最終的實(shí)驗(yàn)測(cè)試，，系統(tǒng)能夠較好地完成定位功能，并能夠通過(guò)GPRS/GSM網(wǎng)絡(luò)將定位信息發(fā)送到手機(jī)上。
[Abstract]:With the popularization of civilian, satellite navigation system is more and more deep into people's life. Whether in automobile navigation, traffic management or national defense security, satellite navigation system is becoming more and more important. At the same time, with the development of embedded technology, handheld satellite navigation terminal has become a hot spot in satellite navigation field. In view of the high requirement of processing speed and simple operation of navigation terminal, this paper chooses S3C2440 as processor and Linux as embedded operating system development platform, and designs satellite positioning terminal equipment based on Beidou system. Firstly, this paper introduces the related theory of embedded development and the basic principle of satellite navigation and positioning in detail, and explains the protocol content of NEMA-0183. Secondly, according to the actual needs of the navigation system, the appropriate system hardware module is selected, and each module is introduced in detail. The whole system is composed of the control module based on S3C2440, the Beidou UM220 module and the wireless transmission module GTM900-C. In the aspect of software, the development environment of embedded Linux is built, including the transplantation of BootLoader, the transplantation of Linux kernel, the construction of file system, the transplantation of Qt and so on. Then the application program of the system is designed, including serial port communication under Linux, satellite positioning module, wireless transmission module and embedded electronic map design, especially the in-depth analysis of MapInfo electronic map. The electronic map database based on SQLite is constructed to store the map details. Through the final experimental test, the system can complete the location function well, and can send the location information to the mobile phone through the GPRS/GSM network.
【學(xué)位授予單位】：南昌航空大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：P228.4

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