车载导航系统终端的研究

Vehicle navigation system based on ARM

将GPS定位技术应用于气车,与现有定位技术组合起来共同完成定位监控任务,将大大提高定位准确性及安全性,同时能够降低资金投入,具有很广阔的发展前景。随着全国各省市高速公路路网的建设与完善,对交通管理信息化的要求越来越高。本文提出了如何实现基于ARM的车载导航系统,本设计采用瑞士u-blox公司的NE0-5Q的主芯片接收GPS卫星信号,通过三星公司的S3C2440芯片对接收到的数据进行处理,并对如何编写GPS模块的驱动程序进行了比较详细的讲解。把编写好的GPS驱动程序加载到Linux内核中去以供GPS的应用程序使用。本文介绍了系统的总体架构,然后重点介绍了对GPS模块的驱动程序和应用程序的编写。

The GPS positioning technology in cars has been used in cars,combined with the existing co-location technology to complete the task of orientation control and will greatly enhance the positioning accuracy and safety and reduce the capital investment. With the development of national expressway network construction and improvement .Traffic management information will be very importance in today. This paper presents how to implement ARMbased car navigation systems. This design uses a u-blox’s main chip NE0-5Q which be used to receive GPS satellite signal. The signal is processed by Samsung’s chip s3c2440. I described how to write GPS module’s driver clearly and I loaded the GPS’ s driver into Linux kernel for the GPS’s applications. This article describes the general framework of the system and introduced how to write the GPS module ‘s driver and application.