摘要导航定义为引导某一设备，通过指定线路从一点运动到另一点的方法。非自 主式导航即通过与外界的信息交流完成导航的目的，是当今导航方式的重要组成 部分。虽说随着导航系统与设备技术的发展，各种新型的导航技术层出不穷，但 当今导航领域中占据主导地位的仍是非自主式导航系统。随着当今社会汽车的大 量普及与道路的建设，交通技术的发展也随着时代的发展而进步，声音导航技术 的发展在将来也大有可为。69249

本设计通过采用声音采集系统进行声音信号的采集，再利用声音到达采集系 统的时间差来确定声源的运动方向与速度，信号通过无线通讯方式的传输从而最 终到达原先指定的预到达声源位置的闭环系统控制。通过分析完成移动声源的制 作、声音采集系统的制作和声源的无线控制等模块的软硬件制作，实现单片机硬 件与软件有效结合，形成一套具有良好性能，快、稳、准兼备的声音控制小车自 动定位系统的设计。

该论文有图 26 幅，表 3 个，参考文献 22 篇。

毕业论文关键词 ：声音导航 声音采集 无线通讯 单片机 自动定位

The system design of sound positioning

Abstract

Navigation is defined as a boot device by specifying a line from one point to another point movement method. Non autonomous navigation is the purpose of navigation through the information exchange with the outside world, is an important part of today's navigation. Although with the development of navigation systems and equipment technology, a variety of new navigation technology after another, but in today's field of navigation is still dominated by a non-autonomous navigation system. With the construction of a large number of cars in today's society and the popularity of the road, the development of transportation technology with the development and progress of the times, the development of voice navigation technology in the future is also promising.

This design through the use of sound collection system collecting a sound signal, and then use the sound arrival time acquisition system of difference determining the direction of a sound source movement and speed, the signal transmission over a wireless communication connection via the ultimately reach the originally specified pre reaches the sound source position closed-loop control system. By analyzing the hardware and software modules to complete the move of the sound source production, radio production and sound source control systems such as the production sound collection, SCM effective combination of hardware and software, has formed a good sound performance, fast, stable, accurate and defensive control design car automatic positioning system.

Key words：Voice navigation Sound collection Wireless communication Single chip microcomputer Automatic positioning

目 录

摘要 I

Abstract II

目录 III

1 绪论 1

1.1  研究背景及意义 1

1.2  国内外现状 2

1.3  本论文的主要工作 3

2 系统方案的设计与论证 4

2.1  设计任务与要求 4