【正文】 的傳輸速率可提升至 56 甚至 114Kbps。通過這個整體有機的把各個模塊結合在一起，完成所要設計的功能。 鑒于系統(tǒng)復雜繁多的任務量，把 適用于嵌入式系統(tǒng)的搶占式實時多任務操作系統(tǒng) UCOSII 移植到本系統(tǒng)中，為后面的任務分配做好準備工作；并 詳細介紹了 系統(tǒng)各模塊的通信協議和軟件接口并編寫相應的各模塊的程序；最終結合硬件完成整個系統(tǒng)的軟件硬件搭建； 第 5 章，總結與展望。 基于以上系統(tǒng)設計思想，我 將 從 GPRS 模塊、 GPS 模塊、 STM32 處理器 等模塊詳 細介紹系統(tǒng)的設計，本文結構如下： 第 1 章，緒論。 本文主要研究內容和工作 近年來 ， GPS 在車輛管理和調度系統(tǒng)中得到越來越廣泛的應用。 2020 年國內自主研發(fā)的首款應用于車載的衛(wèi)星導航接收芯片 “ 航芯二號 ” 的設計成功，表明國內已經完全具備 GPS、伽利略、北斗等全球衛(wèi)星導航接收芯片的開發(fā)能力，可以替代進口產品，成為中國集成電路設計領域的重要技術突破 [5]。同時，在北美、歐洲、燕山大學本科生畢業(yè)設計（論文） 2 日本等地，汽車導航銷售額居各類 GPS 市場之首。就目前情況來看，日本是當今車輛導航定位監(jiān)控系統(tǒng)發(fā)展最為成功的國家之一。 GIS 電子地圖，為車輛監(jiān)控系統(tǒng)提供了一個車輛位置信息的一個形象的可視化表現手段， GPS 定位技術使車輛監(jiān)控中的實時跟蹤定位成為可能，而 GPRS 無線通信技術則在 GIS 和 GPS 之間建立一座無線數據通信的橋梁 ，使得遠程監(jiān)控成為可能。 關鍵詞： 通用分組無線業(yè)務 (GPRS) GPS 定位系統(tǒng) STM32 處理器 車載監(jiān)控 III Abstract Recently, great advance has been achieved both in puter science and electronic technology, which makes the modern automobiles much more intelligent and much more fortable. With more and more work technique applied in embedded system and the great improvement in semiconductor manufacturing, the EMPU(Embedded MicroProcessing Unit) has extended its application to the automobile industry. The embedded technique gives the best solution for automobile electronics and makes it possible to produce high performance terminal for cars at low cost. Nowadays, wireless data transition technology has brought great fortune for business especially for the information acquisition system, which could extend the data acquisition range and cut down the maintenance technique of vehicle supervision can guide the motor to it s destination conveniently, quickly and rightly, which is very important in increasing the transportation efficiency and energy saving. The paper from two aspects of hardware and software, and analyses the principle, and gives a detailed design. Includes hardware platform design and operating system customization transplantation, the software development platform choice and application development, etc. Hardware platform design including: in the study of the characteristics STM32 processor based on the periphery of the interface, the core of the system. According to the realization of GPRS module, data interface, and foot function, pleted the design of STM32 interface . According to the characteristics of GPS module, basic structure and external pin definition, pleted the detailed design of GPS module and STM32 processor interface design, And LCD interface, the periphery connection USART interface. Software calm mainly includes GPS information collection and analysis, GPRS munication with the monitoring center, text messaging, LCD display programs. IV At the end of the dissertation, a summary was made. For example, It can be used for electronic map and the method of bining obtain more accurate and detailed data, provide more convenient service and better map visual effect. This intelligent vehicle terminal has pact structure and powerful function such as car location and tracking. The system was economical and easily for upgrading. Keywords： GPRS(General Packet RadioService)， GPS(Global Position System)， STM32 Processor, Vehicle terminal I 目 錄 摘要 .......................................................... II Abstract ....................................................... III 第 1 章 緒論 ................................................... 1 課題背景 .............................................. 1 本系統(tǒng)研究的國內外現狀 ................................ 1 本文主要研 究內容和工作 ................................ 2 第 2 章 系統(tǒng)總體設計和關鍵技術 ................................ 5 系統(tǒng)的整體設計 ........................................ 5 GPRS 技術 ............................................ 5 GPRS 網絡結構 .................................... 6 GPRS 的技術優(yōu)勢 .................................. 7 GPS 技術 ............................................. 8 導航定位技術現狀 .................................. 9 GPS 衛(wèi)星定位原理 ................................ 10 GPS 的應用 ...................................... 12 STM32 處理器 ........................................ 13 總線構架 ........................................ 14 存儲器組織 ...................................... 16 電源 ............................................ 17 本章小結 ............................................. 18 第 3 章 系統(tǒng)硬件設計與開發(fā) ................................... 19 系統(tǒng)硬件總體設計 ..................................... 19 GPRS 模塊硬件設計 ................................... 20 UART 接口 ...................................... 20 網絡狀態(tài)指示 .................................... 21 SIM 卡接口 ...................................... 22 音頻接口 ........................................ 23 電源接口 ........................................ 25 USB 總線接口 .................................... 25 GPRS 模塊整體電路 ............................... 26 GPS 模塊硬件設計 ..................................... 26 II GPS 模塊結構框圖 .................................27 GPS 模塊設計 .....................................28 STM32 處理器設計 .....................................29 時鐘電路設計 .....................................29 系統(tǒng)時鐘 SYSCLK ...................................32 系統(tǒng)復位 .........................................32 人機接口設計 ..........................................34 TFT 寸彩色液晶屏 ..............................34 按鍵和 LED 電路 ...................................35 輔助電路設計 ..........................................35 RS232 通信模塊 ...................................35 系統(tǒng)供電電路 .....................................36 JTAG 仿真調試接口 ................................37 串行 E2PROM 存儲器 ..............................37 本章小結 ..............................................38 第 4 章 操作系統(tǒng)移植和軟件設計開發(fā) ............................39 uCOSII 嵌入式操作系統(tǒng)移植 ............................39 uCOSII 嵌入式系統(tǒng)簡介 ............................39