摘要科技在不断的发展，机动车的数量曲线在呈直线上升,然而每个人驾驶都会有疲劳的时候。最新数据表明，我国驾驶车辆发生交通事故在全球所占百分比最高。其中导致事故的最大原因是疲劳驾驶。因此根据此情况，检测出人员是否驾驶疲劳的报警系统的研发非常有必要。72722

本系统设计的是基于TMS320DM642芯片的疲劳驾驶检测系统。本系统是以CCD摄像头对图像进行采集，采集到模拟图像送视频解码器芯片进行数字化，再通过TMS320DM642的视频端口送到外部存储器中以供疲劳驾驶检测算法使用，并最终根据算法PERCLOS运行后的结果决定蜂鸣器是否报警。本设计主要工作是按照系统的总体结构框架图设计出各部分硬件电路，再进行软件设计，主要是对眼睛定位。最后验证系统是可用的，可以实现所要求的功能。

论文有图18个，参考文献20篇。

毕业论文关键词：疲劳驾驶  TMS320DM642  PERCLOS

Design of fatigue driving detection system based on DSP

Abstract the development of science and technology constantly, the amount of vehicle curve in the straight up, but when everyone has fatigue driving。 The latest data show that China's vehicle traffic accidents in the world's highest percentage。 The biggest cause of the accident is fatigue driving。 According to the situation as a result, detect the staff whether driving fatigue of the alarm system is necessary to research and development of things。

After understanding of various aspects, this paper designed is fatigue detection system based on TMS320DM642 chip。 This system is of images by CCD camera acquisition, acquisition to the analog image to send digital video decoder chip, and then to external storage by TMS320DM642 video port used for fatigue detection algorithm, and finally according to the result of algorithm PERCLOS operation decision buzzer alarm or not。 The overall structure of the paper's main work is according to the system frame design of the hardware circuit, and then the software design, mainly for eye location。 The final validation system is available, can realize the required functions。

 Key words: fatigue driving  TMS320DM642  PERCLOS

目   录

摘  要 I

Abstract II

目   录 III

图清单 V

1 绪论 1

1。1研究背景与意义 1

1。2国内外现状 2

1。3本文主要工作 3

2基于DSP的疲劳驾驶检测系统框架 4

2。1基本思路 4

2。2系统硬件设计方案以及芯片介绍 4

2。3系统软件设计方案 6

3疲劳驾驶检测系统的硬件设计 9

3。1疲劳驾驶检测系统电路板功能概述 9

3。2视频采集电路 9

3。3FALSH电路 10

3。4SDRAM电路 11

3。5电源电路 12

3。6时钟电路 14

3。7系统复位电路 14

3。8 JTAG接口与报警模块 15

3。9 PCB设计 16

4检测系统的软件设计