汽车导航系统的分岔路口向导设计

Crossing guide design for car navigation system

汽车导航系统是近十年来兴起的一种汽车驾驶辅助设备。在所有导航系统的模块中,提供声音提示、表示图等功能的向导是实现导航功能最基本最重要的模块。为了提高导航系统在分岔路口处的导航能力,本文在原系统的向导模块中添加了一个新的分岔路口向导功能模块。基于以上目的,首先介绍了本文使用的汽车导航系统的模块结构与其功能,特别是向导模块。然后,系统地分析、设计并实现了分岔路口向导功能。这一功能的实现,更进一步地完善了汽车导航系统。

The car navigation system comes in vogue as aid for vehicle drivings in the recent 10 years. Among modules of the systems, the guide is the most fundamental and important module which provides servies of voice prompts, picture show and other functions to fulfil the navigation function. In order to improve the navigating ability at crossing, a crossing guide module has been added to the original guide system. Based on this purpose, the structure and function of the car navigation system is firstly introduced in this paper, particularly it＇s navigation module. Then, the function of the crossing guide is systematily analysed, designed and implemented. The implementation of this function makes a great improvement to the car navigation system.