摘要
为了保障盲人行路安全,设计基于智能视觉导航的盲人指路设备。介绍了设备设计方案,为智能视觉模块选择CMOS单片机和OV单片机,周期性地采集盲人行路图像,通过对比图像灰度值确定路面是否存在障碍物。采用PFGA控制智能视觉模块时序,计算障碍物位置,进而提供导航线路,通过串口通信电路将导航线路传给语音模块进行播报。通过对比实验证明,基于智能视觉导航的盲人指路设备具备较强的实时性和鲁棒性。
In order to ensure the safety of the blind walking on his way, a way-directing equipment based on intelligent visual navigation was designed for blinds. The design scheme of the equipment is introduced. The single chips CMOS and OV were selected for intelligent visual module to periodically collect blind walking images. The condition whether the obstacles are on the pavement is determined by comparing the image gray values. PFGA is adopted to control the timing sequence of the intelligent vision module, calculate the position of the obstacle, and then provide navigation line which is transmitted to the voice module for broadcast by the serial communication circuit. The comparison experimental results prove that the blind guide device based on intelligent vision navigation has strong real-time performance and robustness.
出处
《现代电子技术》
北大核心
2017年第16期76-78,共3页
Modern Electronics Technique
