盲人手环的设计与研究
Design and Research of the Blind Bracelet

本文设计了一款帮助盲人出行的手环，用于解决盲人的出行问题，主要涉及手环红外线障碍物检测、语音播报、GPS定位导航系统。当手环的红外线测距传感器在距离使用者1米的范围内检测到有障碍物时，手环首先震动给佩戴者提示(当距离越近，震动就越大)，然后手环语音助手会使用蓝牙连接耳机把障碍物的方向和距离传送给佩戴者，同时还可进行定位及导航。
This paper designs a wristband to help the blind people travel, which is used to solve the travel problems of the blind people, mainly involving the bracelet: infrared obstacle detection, voice broadcast, and GPS positioning and navigation system. When the bracelet infrared ranging sensor detected within 1meters from the user obstacles, bracelet first vibration to the wearer prompt (when the distance is the closer, the greater the vibration), then the bracelet voice assistant will use bluetooth connection headphones to transmit the obstacles in the direction and distance to the wearer, but also for positioning and navigation.