车载疲劳驾驶行为检测系统的研究与设计

摘要

针对汽车驾驶员的疲劳驾驶行为检测过程繁琐、算法复杂、检测装置部署易影响驾驶员等现状,为更加方便、快捷、有效的对疲劳驾驶做出监测和报警,提出基于ZigBee的车载疲劳驾驶检测方案.选取方向盘角度变化作为检测疲劳驾驶的突破点,使用TLE5012角度传感器,完成角度数据的采集,采用CC2530实现系统的无线通信.从采集到的方向盘角度数据中提取能反映疲劳状态的零速百分比和角度标准差两个特征,使用线性判别算法对驾驶人员的疲劳状态进行分类.仿真实验表明,该方法能够较准确的对疲劳状态进行判别.%Because of the cumbersome process and complexity algorithm of drivers' fatigue driving behavior detection,a ZigBee-based vehicle-mounted fatigue driving detection method is proposed to monitor driving easily,fast and effectively.Choose steering wheel angle data as the bridge to detective fatigue driving.Data is collected by TLE5012 angle sensor,and the system wireless communications make use of the CC2530.Extract the non-steering percentage and angle standard deviation from the collected steering wheel angle data.The driver's fatigue is identified by linear discriminate algorithm.The experiment shows that the method can identify fatigue driving exactly.