基于GPS技术与智能避障的导盲拐杖研究

Research of guide blind crutch based on GPS technology and intelligent obstacle avoidance

设计了一种具有避开障碍物、GPS定位、危险预警、快速牵引等功能的智能导盲拐杖。该导盲拐杖使用三星S3C2440为控制器,利用红外探测技术、GPS技术、超声波测距技术与压力感应技术,在已有的红外探测小车与GPS导航仪的基础上进行开发。在功能研发的过程中,主要从全功能导航状态,避障状态,运动状态三个功能状态方向研发,三种工作状态可以通过手杖上的转换开关完成转换。该导盲拐杖结合人机功能的特点,不仅能够提醒盲人前方路况,帮助盲人避开障碍物,还能够定位当前位置,满足视力障碍者日常出行的需求,大大提高了盲人出行的安全可靠性。

An intelligent guide blind crutch with the avoiding obstacles, GPS positioning, risk early warning and rapid traction functions is designed. The guide blind uses Samsung S3C2440 as the controller. And it is developed based on the existing infrared detection vehicles and GPS navigator with the infrared detection technology, GPS technology, ultrasonic ranging technology and pressure sensor technology. During the process of function development, mainly from the function state of navigation, obstacle avoidance, motion state to research, the three kinds of working state can stick on the switch to complete the conversion. The guide blind crutch combines with the characteristics of man-machine function, can not only remind the blind the condition of the road ahead, to help blind people to avoid obstacles, but also be able to locate the current position, meet the needs of visually handicapped＇s daily travel, greatly improving the safety and reliability of blind travel.