客车综合信息显示系统设计

发布时间：2018-09-11 07:19

【摘要】：在大力倡导节能减排低碳生活的今天,公共交通这种绿色的出行方式正受到人们越来越多的欢迎。客车是公共交通中最重要的交通工具之一,近年来客车的发展十分迅速,各种先进技术的应用让客车变得更加安全舒适,然而回顾客车近十年来的发展,客车车厢内面向乘客的电子设备却进步甚小。人们在乘坐客车旅行时,不仅需要安全舒适,还需要了解位置、时间等行车信息,但客车较低的信息化水平无法满足乘客的这一需求。因此,在当今信息化社会的大背景下,提高客车的信息化水平是十分必要的。本文针对提高客车的信息化水平,围绕信息和安全这两大主题设计了一套客车综合信息显示系统。首先介绍了嵌入式系统、ARM技术和GPS技术,通过需求分析确定了系统的基本功能,在此基础上给出了系统的总体设计；然后对系统分别进行了硬件选型和软件设计；之后对系统进行了测试；最后对系统设计作了总结,对系统的应用前景作出了展望。系统采用SUNSANG公司的$3C2440芯片作为处理器,选择嵌入式Linux作为操作系统。一方面,GPS模块和DS18820数字温度传感器采集客车当前的经纬度、速度和温度等行车信息,通过Qt4图形界面程序将这些行车信息以地图和数字的方式显示在客车车厢内的LCD显示屏上；另一方面,利用USB摄像头对车厢内进行视频监控,减少违法犯罪行为,督促司机安全驾驶,保证了乘客的安全。测试表明系统实现了预期的功能,它在提高了客车信息化水平的同时可以让乘客更加安心的享受旅途生活。此外,在本系统平台上还可以扩展出广告播放、影音播放等功能,形成一套完整的客车多媒体信息娱乐系统,具有广阔的应用和发展空间。
[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.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U463.6

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