现代社会高楼林立、交通发达，对于盲人来说，到处都有障碍物，这给他们的出行带来了诸多不便，盲人出行安全也逐渐成 为人们关注的焦点.本导航眼镜就是以辅助盲人出行为目的，通过在眼镜上设计两套超声波测距系统来解决帮助盲人及时避开障碍 物.将超声波测量得到的数据进行相关的算法处理，能够得到障碍物距离、速度、方位三方面的信息，以左右振动的形式告知盲人，从 而达到给盲人导航的效果.眼镜结构简单，操作方便，具有集成度高，准确性好，低功耗，低成本等特点，市场前景广阔.

The modern society is full of skyscrapers and traffic developed，but for the blind everywhere is filled with obstacles which brings inconvenience for the blind's travel，traveling safety for blind people gradually become the focus of attention. The purpose of this navigation glasses is to assist the blind to travel，by designing two sets of ultrasonic distance measurement system to help the blind avoid obstacles in time. The data are obtained by ultrasonic measurement related algorithm which can get three aspects information about the distance，speed and direction of the obstacles to inform the blind in the form of vibration and achieve the effect of navigating to the blind. The glasses have the following characteristics: simple structure，easy operation，high integration，good accuracy，low power consumption，low cost and broad market prospects.