基于GPS的嵌入式公交自动报站系统的研究

发布时间：2018-06-22 08:56

本文选题：嵌入式 + GPS　；参考：《西安科技大学》2008年硕士论文

【摘要】： 随着国民经济的发展,城市交通拥挤和阻塞现象日趋严重。城市交通问题已严重阻碍了城市居民生活水平的提高和整个城市经济的可持续发展,成为城市发展的瓶颈。城市公共交通具有运载量大、运送效率高、相对污染少等优点。开发和建设先进的公共交通管理系统以改善公交管理和提高服务的质量,引导市民选择公共交通工具出行,从而改善整个城市交通状况是解决城市交通问题的关键。本文分析了国内外智能交通系统的发展现状以及GPS定位原理,提出了一种基于GPS的嵌入式公交自动报站系统,详细介绍了硬件电路设计以及系统软件的开发过程。并制定了测试方案,对系统进行测试。最后对所做工作进行总结,指出了进一步的研究方向。本系统以功能强大的ARM9芯片S3C2410X为核心,包含:电源、复位电路、时钟电路、GPS模块、Flash/RAM存储器、触摸屏接口电路、音频电路等组成模块。采用嵌入式Linux操作系统及GPS卫星定位技术,利用站点经纬度信息作为触发条件,调用Mplayer播放器播报站名、服务用语,并提供广告等增值业务。利用触摸屏作为人机交互界面,采用QT/Embedded图形界面设计实现公交查询系统。并根据系统的具体情况修改了音频驱动和触摸屏驱动。系统软件可通过串口升级,显示屏同步显示报站信息及广告,可同时存储多条线路,便于公交车临时更换运营线路。本系统可以方便、准确地告诉乘客车辆运行的信息,还可提供各种提示或警示服务,使得乘客能安全乘车,减轻司乘人员的负担,具有很好的应用前景。
[Abstract]:With the development of national economy, urban traffic congestion and congestion are becoming more and more serious. The urban traffic problem has seriously hindered the improvement of the living standard of urban residents and the sustainable development of the whole city economy, which has become the bottleneck of urban development. Urban public transport has the advantages of large transportation capacity, high transport efficiency and less relative pollution. The key to solve the urban traffic problem is to develop and build advanced public transportation management system to improve the public transport management and the quality of service, to guide citizens to choose public transportation and to improve the traffic situation of the whole city. This paper analyzes the development of intelligent transportation system at home and abroad and the principle of GPS positioning, puts forward an embedded bus automatic station reporting system based on GPS, and introduces the hardware circuit design and the development process of system software in detail. The test scheme is established and the system is tested. Finally, the work is summarized and the further research direction is pointed out. This system takes the powerful ARM9 chip S3C2410X as the core, including: power supply, reset circuit, clock circuit, GPS module, flash / RAM memory, touch screen interface circuit, audio circuit and so on. Using embedded Linux operating system and GPS satellite positioning technology, using the longitude and latitude information of the site as trigger condition, calling Mplayer player to broadcast station name, service terms, and providing value-added services such as advertising. The touch screen is used as the man-machine interface and the QT / embedded graphical interface is used to design and implement the public transportation query system. The audio driver and touch-screen driver are modified according to the specific conditions of the system. The system software can be upgraded by serial port, display screen can display information and advertisement simultaneously, and multiple lines can be stored at the same time, which is convenient for the bus to change the operating line temporarily. The system can conveniently and accurately tell passengers the information of the operation of the vehicle, and can also provide all kinds of warning or warning services, so that passengers can ride safely and lighten the burden of the passengers. It has a good application prospect.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2008
【分类号】：TP273

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