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中文摘要：
首先分析车载导航设备的核心功能，说明低成本实现方案的可行性。在此基础上，给出低成本车载导航设备的硬件框架，并对关键部件进行功能阐述。而后从导航原理、嵌入式GIS、图形开发、编码规范、程序运行、内存使用几个方面论述设备的软件系统。接着，通过实验证明该低成本车载导航设备较好地实现了车载导航设备的核心功能。最后，通过与高档车载导航设备的成本对比，体现了该设备的成本低。
英文摘要：
A low-cost VND is studied and implemented in this paper. This paper first analyzes the kernel functions of VND to account for the feasibihty of low-cost implementation scheme. Based on this, the hardware architecture of low-cost VND is presented, and the functions of key components are discussed. Moreover, through some aspects of navigation principle, embedded GIS （ Geographical Information Systems）, graphics development, coding criterion, program execution and memory use, the software system of VND of this paper is disserted. In succession, the experiment indicates that the low-cost VND implemented in this paper preferably meets the kernel functions of VND. At last, compared with the price of high VND, the lowcost characteristic of the VND implemented in this paper is presented.
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