本文選題：智能公共交通 + 地面數(shù)字機(jī)頂盒�。� 參考：《大連理工大學(xué)》2013年碩士論文

【摘要】：當(dāng)前,隨著汽車保有量逐年增長(zhǎng),城市交通日益擁堵,智能公交系統(tǒng)的出現(xiàn)及發(fā)展壯大是社會(huì)需求發(fā)展和城市交通發(fā)展的必然趨勢(shì),不僅可以滿足廣大人民群眾日益增長(zhǎng)的物質(zhì)、文化需求,還可提高交通效率,緩解交通擁堵,為城市的可持續(xù)發(fā)展做出貢獻(xiàn)。 本文以開發(fā)設(shè)計(jì)的一款滿足國(guó)家標(biāo)準(zhǔn)GB20600-2006的地面數(shù)字接收機(jī)頂盒、電源盒和GPS外掛盒組成的簡(jiǎn)單智能公共交通接收終端為例,對(duì)地面數(shù)字電視機(jī)頂盒的主要技術(shù)原理進(jìn)行了分析,探討了該接收終端的整個(gè)設(shè)計(jì)過程。文中在簡(jiǎn)要描述數(shù)字電視的傳輸標(biāo)準(zhǔn)以及地面數(shù)字電視接收機(jī)的工作原理的基礎(chǔ)上,闡述了地面數(shù)字機(jī)頂盒、電源盒及GPS外掛盒的各個(gè)組成部分,重點(diǎn)研究電源盒電源部分和音頻功放部分,機(jī)頂盒信源接收調(diào)制和解碼部分,GPS外掛盒中供電電路和GPS接收電路部分的設(shè)計(jì)。同時(shí)對(duì)安裝、實(shí)測(cè)過程中遇到的問題進(jìn)行了改進(jìn),并進(jìn)行實(shí)驗(yàn)測(cè)試分析,通過實(shí)驗(yàn)驗(yàn)證了改進(jìn)方案的正確性。 本文中所設(shè)計(jì)的地面數(shù)字機(jī)頂盒和GPS外掛盒,通過各種測(cè)試,各項(xiàng)主要性能指標(biāo)都達(dá)到了國(guó)家標(biāo)準(zhǔn),取得了良好的效果。
[Abstract]:At present, with the increase of vehicle ownership and traffic congestion, the emergence and development of intelligent public transport system is the inevitable trend of social demand development and urban traffic development. It can not only meet the increasing material and cultural needs of the broad masses of people, but also improve traffic efficiency and ease traffic congestion. In this paper, a simple intelligent public transport receiving terminal, which meets the national standard GB20600-2006, is developed and designed to meet the national standard GB20600-2006, which is composed of a simple intelligent public transport receiver, a power supply box and a GPS external box. This paper analyzes the main technical principle of the terrestrial digital TV set-top box, and discusses the whole design process of the receiving terminal. On the basis of briefly describing the transmission standard of digital TV and the working principle of terrestrial digital TV receiver, this paper expounds the components of ground digital set-top box, power box and GPS external box. Emphasis is placed on the design of power supply and audio power amplifier in the power supply box, modulation, modulation and decoding of the source of the set-top box, and the design of the power supply circuit and the GPS receiving circuit in the GPS external box. At the same time, the problems encountered in the course of installation and measurement are improved, and the correctness of the improved scheme is verified by experiments. The ground digital set-top box and GPS external box designed in this paper have passed various tests. Each main performance index has reached the national standard, has obtained the good effect.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P228.4;U495

【參考文獻(xiàn)】

相關(guān)期刊論文 前6條

1 方向前;穆維新;;數(shù)字電視機(jī)頂盒技術(shù)[J];電子工程師;2007年01期

2 陳旭梅,于雷,郭繼孚,全永焱木;美國(guó)智能交通系統(tǒng)ITS的近期發(fā)展綜述[J];中外公路;2003年02期

3 石友服;美國(guó)智能交通的發(fā)展現(xiàn)狀及規(guī)劃[J];交通世界;2002年08期

4 岳建明;林玳玳;;我國(guó)智能交通產(chǎn)業(yè)與物聯(lián)網(wǎng)技術(shù)的融合與發(fā)展分析[J];生產(chǎn)力研究;2012年05期

5 韓建中;;公交移動(dòng)電視受眾收視需求實(shí)證研究——以太原市為例[J];聲屏世界;2011年12期

6 ;Design and realization of synchronization circuit for GPS software receiver based on FPGA[J];Journal of Systems Engineering and Electronics;2010年01期

，

本文編號(hào)：2007959