游乐设施车内头枕高度自适应调整系统设计

头枕是一种游乐设施车驾驶及乘坐舒适性配置用品和碰撞安全防护用品,是游乐设施车座椅的重要组成部分之一。为使头枕充分发挥其作用,设计了一种基于图像识别的自适应调整装置控制头枕高度。该装置使用摄像头采集驾乘人员图像；利用灰度化处理、直方图均衡化、中值滤波处理图像,提高图像质量；选用哈尔特征的Adaboost算法实现人脸特征提取,训练组成级联分类器,实现人脸检测和定位；通过解析几何列出了头枕调整高度的计算公式；步进电机控制程序与人脸检测及高度计算模块数据通信,实现车内头枕高度自适应调整。

Design of adaptive adjusting device for headrest height in vehicle

Automobile headrest is a kind of car driving and riding comfort configuration and collision safety protection products, and it is one of the important components of car seats. In order to make the headrest fully play its role, an adaptive adjustment device based on image recognition is designed to control the height of the headrest. The device uses a camera to collect images of drivers and passengers; it uses gray-scale processing, histogram equalization, and median filtering to process the images to improve image quality; the Adaboost algorithm with Haar features is used to extract facial features, and training forms a cascade classifier, To achieve face detection and positioning; the calculation formula of the headrest adjustment height is listed through analytical geometry; the stepper motor control program communicates with the face detection and height calculation module to realize the adaptive adjustment of the headrest height in the vehicle.