【正文】 的傳輸速率可提升至 56 甚至 114Kbps。通過(guò)這個(gè)整體有機(jī)的把各個(gè)模塊結(jié)合在一起，完成所要設(shè)計(jì)的功能。 鑒于系統(tǒng)復(fù)雜繁多的任務(wù)量，把 適用于嵌入式系統(tǒng)的搶占式實(shí)時(shí)多任務(wù)操作系統(tǒng) UCOSII 移植到本系統(tǒng)中，為后面的任務(wù)分配做好準(zhǔn)備工作；并 詳細(xì)介紹了 系統(tǒng)各模塊的通信協(xié)議和軟件接口并編寫(xiě)相應(yīng)的各模塊的程序；最終結(jié)合硬件完成整個(gè)系統(tǒng)的軟件硬件搭建； 第 5 章，總結(jié)與展望。 基于以上系統(tǒng)設(shè)計(jì)思想，我 將 從 GPRS 模塊、 GPS 模塊、 STM32 處理器 等模塊詳 細(xì)介紹系統(tǒng)的設(shè)計(jì)，本文結(jié)構(gòu)如下： 第 1 章，緒論。 本文主要研究?jī)?nèi)容和工作 近年來(lái) ， GPS 在車(chē)輛管理和調(diào)度系統(tǒng)中得到越來(lái)越廣泛的應(yīng)用。 2020 年國(guó)內(nèi)自主研發(fā)的首款應(yīng)用于車(chē)載的衛(wèi)星導(dǎo)航接收芯片 “ 航芯二號(hào) ” 的設(shè)計(jì)成功，表明國(guó)內(nèi)已經(jīng)完全具備 GPS、伽利略、北斗等全球衛(wèi)星導(dǎo)航接收芯片的開(kāi)發(fā)能力，可以替代進(jìn)口產(chǎn)品，成為中國(guó)集成電路設(shè)計(jì)領(lǐng)域的重要技術(shù)突破 [5]。同時(shí)，在北美、歐洲、燕山大學(xué)本科生畢業(yè)設(shè)計(jì)（論文） 2 日本等地，汽車(chē)導(dǎo)航銷(xiāo)售額居各類(lèi) GPS 市場(chǎng)之首。就目前情況來(lái)看，日本是當(dāng)今車(chē)輛導(dǎo)航定位監(jiān)控系統(tǒng)發(fā)展最為成功的國(guó)家之一。 GIS 電子地圖，為車(chē)輛監(jiān)控系統(tǒng)提供了一個(gè)車(chē)輛位置信息的一個(gè)形象的可視化表現(xiàn)手段， GPS 定位技術(shù)使車(chē)輛監(jiān)控中的實(shí)時(shí)跟蹤定位成為可能，而 GPRS 無(wú)線通信技術(shù)則在 GIS 和 GPS 之間建立一座無(wú)線數(shù)據(jù)通信的橋梁 ，使得遠(yuǎn)程監(jiān)控成為可能。 關(guān)鍵詞： 通用分組無(wú)線業(yè)務(wù) (GPRS) GPS 定位系統(tǒng) STM32 處理器 車(chē)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(guó)內(nèi)外現(xiàn)狀 ................................ 1 本文主要研 究?jī)?nèi)容和工作 ................................ 2 第 2 章 系統(tǒng)總體設(shè)計(jì)和關(guān)鍵技術(shù) ................................ 5 系統(tǒng)的整體設(shè)計(jì) ........................................ 5 GPRS 技術(shù) ............................................ 5 GPRS 網(wǎng)絡(luò)結(jié)構(gòu) .................................... 6 GPRS 的技術(shù)優(yōu)勢(shì) .................................. 7 GPS 技術(shù) ............................................. 8 導(dǎo)航定位技術(shù)現(xiàn)狀 .................................. 9 GPS 衛(wèi)星定位原理 ................................ 10 GPS 的應(yīng)用 ...................................... 12 STM32 處理器 ........................................ 13 總線構(gòu)架 ........................................ 14 存儲(chǔ)器組織 ...................................... 16 電源 ............................................ 17 本章小結(jié) ............................................. 18 第 3 章 系統(tǒng)硬件設(shè)計(jì)與開(kāi)發(fā) ................................... 19 系統(tǒng)硬件總體設(shè)計(jì) ..................................... 19 GPRS 模塊硬件設(shè)計(jì) ................................... 20 UART 接口 ...................................... 20 網(wǎng)絡(luò)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(shè)計(jì) ..................................... 26 II GPS 模塊結(jié)構(gòu)框圖 .................................27 GPS 模塊設(shè)計(jì) .....................................28 STM32 處理器設(shè)計(jì) .....................................29 時(shí)鐘電路設(shè)計(jì) .....................................29 系統(tǒng)時(shí)鐘 SYSCLK ...................................32 系統(tǒng)復(fù)位 .........................................32 人機(jī)接口設(shè)計(jì) ..........................................34 TFT 寸彩色液晶屏 ..............................34 按鍵和 LED 電路 ...................................35 輔助電路設(shè)計(jì) ..........................................35 RS232 通信模塊 ...................................35 系統(tǒng)供電電路 .....................................36 JTAG 仿真調(diào)試接口 ................................37 串行 E2PROM 存儲(chǔ)器 ..............................37 本章小結(jié) ..............................................38 第 4 章 操作系統(tǒng)移植和軟件設(shè)計(jì)開(kāi)發(fā) ............................39 uCOSII 嵌入式操作系統(tǒng)移植 ............................39 uCOSII 嵌入式系統(tǒng)簡(jiǎn)介 ............................39