發(fā)布時間：2018-09-11 07:19

【摘要】：在大力倡導(dǎo)節(jié)能減排低碳生活的今天,公共交通這種綠色的出行方式正受到人們越來越多的歡迎�？蛙囀枪步煌ㄖ凶钪匾慕煌üぞ咧�,近年來客車的發(fā)展十分迅速,各種先進(jìn)技術(shù)的應(yīng)用讓客車變得更加安全舒適,然而回顧客車近十年來的發(fā)展,客車車廂內(nèi)面向乘客的電子設(shè)備卻進(jìn)步甚小。 人們在乘坐客車旅行時,不僅需要安全舒適,還需要了解位置、時間等行車信息,但客車較低的信息化水平無法滿足乘客的這一需求。因此,在當(dāng)今信息化社會的大背景下,提高客車的信息化水平是十分必要的。 本文針對提高客車的信息化水平,圍繞信息和安全這兩大主題設(shè)計了一套客車綜合信息顯示系統(tǒng)。首先介紹了嵌入式系統(tǒng)、ARM技術(shù)和GPS技術(shù),通過需求分析確定了系統(tǒng)的基本功能,在此基礎(chǔ)上給出了系統(tǒng)的總體設(shè)計；然后對系統(tǒng)分別進(jìn)行了硬件選型和軟件設(shè)計；之后對系統(tǒng)進(jìn)行了測試；最后對系統(tǒng)設(shè)計作了總結(jié),對系統(tǒng)的應(yīng)用前景作出了展望。 系統(tǒng)采用SUNSANG公司的$3C2440芯片作為處理器,選擇嵌入式Linux作為操作系統(tǒng)。一方面,GPS模塊和DS18820數(shù)字溫度傳感器采集客車當(dāng)前的經(jīng)緯度、速度和溫度等行車信息,通過Qt4圖形界面程序?qū)⑦@些行車信息以地圖和數(shù)字的方式顯示在客車車廂內(nèi)的LCD顯示屏上；另一方面,利用USB攝像頭對車廂內(nèi)進(jìn)行視頻監(jiān)控,減少違法犯罪行為,督促司機(jī)安全駕駛,保證了乘客的安全。 測試表明系統(tǒng)實(shí)現(xiàn)了預(yù)期的功能,它在提高了客車信息化水平的同時可以讓乘客更加安心的享受旅途生活。此外,在本系統(tǒng)平臺上還可以擴(kuò)展出廣告播放、影音播放等功能,形成一套完整的客車多媒體信息娛樂系統(tǒng),具有廣闊的應(yīng)用和發(fā)展空間。
[Abstract]:Today, public transport is becoming more and more popular as a green way of transportation. Bus is one of the most important means of public transport. In recent years, the development of bus is very rapid. The application of various advanced technology makes bus more safe and comfortable. However, the development of bus in the past ten years is reviewed. Little progress has been made in passenger electronics on the inside of passenger cars. When people travel by bus, they not only need to be safe and comfortable, but also need to know the location, time and other driving information, but the lower information level of bus can not meet the needs of passengers. Therefore, under the background of today's information society, it is necessary to improve the level of bus informatization. In order to improve the information level of passenger cars, a bus integrated information display system is designed around the two themes of information and safety. This paper first introduces the embedded system arm technology and GPS technology, determines the basic functions of the system through demand analysis, then gives the overall design of the system, and then designs the hardware and software of the system, respectively. Finally, the design of the system is summarized, and the application prospect of the system is prospected. The system uses the chip of SUNSANG as the processor and the embedded Linux as the operating system. On the one hand, the DS18820 module and the DS18820 digital temperature sensor collect the current driving information of the bus, such as longitude, latitude, speed and temperature, and display these information on the LCD display screen in the bus carriage by the way of map and digital through the Qt4 graphical interface program. On the other hand, the USB camera is used to monitor the video inside the car, reduce the illegal and criminal behavior, urge the driver to drive safely, and ensure the safety of the passengers. The test results show that the system has achieved the expected function, it can improve the bus information level while making passengers more comfortable to enjoy the journey life. In addition, the functions of advertisement playing, audio and video playing can be extended on the platform of this system to form a complete bus multimedia information entertainment system, which has broad application and development space.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：U463.6

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本文編號：2235998