本文關(guān)鍵詞： 車載終端 STM32 GPS GPRS　出處：《蘭州交通大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：車輛監(jiān)控系統(tǒng)集地理信息系統(tǒng)技術(shù)、定位技術(shù)、數(shù)據(jù)庫(kù)技術(shù)及通信技術(shù)于一體，是智能交通管理中重要組成部分。它越來越受到交通運(yùn)輸和安全管理部門的關(guān)注，逐漸成為交通管理領(lǐng)域中一個(gè)熱門研究方向，尤其是在長(zhǎng)途客車監(jiān)控領(lǐng)域，由于司機(jī)經(jīng)常超載超員，為了躲避交管人員檢查繞道行駛，導(dǎo)致交通事故頻頻發(fā)生。因此，進(jìn)行車輛監(jiān)控系統(tǒng)的研究有著非常重要的工程應(yīng)用價(jià)值及社會(huì)經(jīng)濟(jì)效益。車載終端是車輛監(jiān)控系統(tǒng)的重要組成部分，本課題所研究的車載終端來源于上海某公司“車輛監(jiān)控系統(tǒng)”研發(fā)項(xiàng)目，該項(xiàng)目根據(jù)長(zhǎng)途客運(yùn)汽車領(lǐng)域的需求進(jìn)行設(shè)計(jì)開發(fā)，本論文主要是針對(duì)項(xiàng)目中車載終端部分功能的設(shè)計(jì)與開發(fā)。 論文給出了車載終端系統(tǒng)的總體設(shè)計(jì)方案，并在此基礎(chǔ)上分析了系統(tǒng)的工作原理。對(duì)相關(guān)的關(guān)鍵技術(shù)做了詳細(xì)介紹。在硬件系統(tǒng)設(shè)計(jì)方面，分析比較了目前在車載終端應(yīng)用中比較流行的51、AVR、ARM系列微控制器，采用了近幾年新興的ARM系列微控制器STM32，相對(duì)于其它微控制器，STM32具有性價(jià)比高、功能強(qiáng)、實(shí)時(shí)性強(qiáng)等優(yōu)勢(shì)，這些特性非常適合應(yīng)用于車載終端開發(fā)領(lǐng)域。 以硬件系統(tǒng)的總體設(shè)計(jì)為基礎(chǔ)，詳細(xì)介紹了電源電路的設(shè)計(jì)、GPS模塊的設(shè)計(jì)、GPRS模塊的設(shè)計(jì)、圖像采集模塊設(shè)計(jì)等。在軟件系統(tǒng)設(shè)計(jì)方面，搭建移植了μC/OS-II實(shí)時(shí)操作系統(tǒng)，在操作系統(tǒng)的基礎(chǔ)上，設(shè)計(jì)了GPS定位、圖像采集、GPRS數(shù)據(jù)遠(yuǎn)程傳輸?shù)裙δ堋?shí)現(xiàn)了GPS定位數(shù)據(jù)的接收、解析，圖像數(shù)據(jù)的采集，，通過車載終端與監(jiān)控中心的GPRS遠(yuǎn)程連接，終端將采集到的定位數(shù)據(jù)及圖像數(shù)據(jù)打包以TCP/IP協(xié)議發(fā)送到監(jiān)控中心。為了實(shí)現(xiàn)GPRS在網(wǎng)絡(luò)不穩(wěn)定時(shí)數(shù)據(jù)的實(shí)時(shí)傳輸，最后設(shè)計(jì)了SMS輔助發(fā)送方式。 本文設(shè)計(jì)的長(zhǎng)途客車車載終端實(shí)現(xiàn)了GPS定位、圖像實(shí)時(shí)采集、數(shù)據(jù)傳輸及SMS短消息發(fā)送。在實(shí)際測(cè)試中表現(xiàn)良好，達(dá)到了預(yù)期的效果。
[Abstract]:Vehicle monitoring system integrates geographic information system technology, positioning technology, database technology and communication technology. As an important part of intelligent traffic management, it has been paid more and more attention by transportation and safety management departments, and has gradually become a hot research direction in the field of traffic management, especially in the field of long-distance bus monitoring. As the driver often overloaded, in order to avoid traffic controllers to check the bypass, resulting in frequent traffic accidents. The research of vehicle monitoring system has very important engineering application value and social economic benefit. Vehicle terminal is an important part of vehicle monitoring system. The vehicle terminal studied in this paper comes from the R & D project of "vehicle monitoring system" of a company in Shanghai, which is designed and developed according to the requirements of long-distance passenger vehicle field. This paper is mainly aimed at the design and development of the function of the vehicle terminal in the project. The paper gives the overall design of the vehicle terminal system, and on the basis of the analysis of the working principle of the system, the relevant key technologies are introduced in detail. In the hardware system design. This paper analyzes and compares the 51 ARM arm series microcontrollers which are popular in the application of vehicle terminal at present, and adopts the new ARM series microcontroller STM32 in recent years. Compared with other microcontrollers, STM32 has the advantages of high performance-to-price ratio, strong function, strong real-time, and so on. These characteristics are very suitable for application in the field of vehicle terminal development. Based on the overall design of hardware system, this paper introduces the design of power supply circuit and the design of GPS module, GPRS module and image acquisition module in detail. The 渭 C / OS-II real-time operating system is transplanted. On the basis of the operating system, GPS positioning and image acquisition are designed. The functions of remote transmission of GPRS data, such as receiving, analyzing and collecting image data of GPS positioning data, are realized, and the remote connection between GPRS of vehicle terminal and monitoring center is achieved. The terminal sends the collected location data and image data to the monitoring center with TCP/IP protocol in order to realize the real-time transmission of GPRS data when the network is unstable. Finally, the SMS auxiliary sending mode is designed. The long distance bus vehicle terminal designed in this paper realizes GPS positioning, real-time image acquisition, data transmission and SMS short message transmission.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P228.4;U495

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