设计简介：
项目名：盲人避障眼镜
项目编号：mcuclub-dz-235
单片机类型：STC89C52
具体功能：
1、通过DS18B20测量温度，给超声波作为温度补偿
2、通过一个超声波测量前方障碍物，如果距离小于设置最小值，则蜂鸣器报警
3、通过另一个超声波测量下方障碍物（设定一个身高H，放置斜下方45°，可计算出超声波检测距离值是S=√2H），检测到距离超过S 30cm或低于S 30cm的障碍物，则蜂鸣器报警
4、通过触发型光敏电阻检测光照是否过低，如果过低，则启动LED提示灯闪烁
5、通过按键可设置阈值
6、通过LCD1602显示屏显示数据
总字数：16568
摘 要
为了解决盲人出行问题，盲人避障眼镜导航工具为盲人的出行提供了一定的帮助，但在实际的推广使用过程中都或多或少存在着价格员贵、体验不好、交互性差、实时性不强等问题。基于此，本论文计划制作出一款人性化、智能化、大众化的智能盲人智能导航眼镜。
通过对盲人外出在道路上行走的场景进行模拟分析，设计导盲眼镜系统所需要的功能主要包括安全避障、报警提醒等。因此，本文基于STC89C52设计了一款智能盲人避障眼镜，通过DS18B20测量温度，给超声波作为温度补偿，通过一个超声波测量前方障碍物，通过另一个超声波测量人体下方障碍物，通过触发型光敏电阻检测光照是否过低，通过按键对距离最小值进行设置，通过LCD1602显示屏显示数据，通过蜂鸣器进行报警提醒，如果距离小于设置最小值，则蜂鸣器报警。除此之外，在盲人夜间出行时，系统会自动打开提示灯，提示路人和车辆注意注意避让盲人。
通过实物测试，该盲人避障眼镜不但克服了传统盲人避障系统的缺点，而且使用简单，能够为盲人朋友提供更加便捷、安全的出行方式。
关键词：盲人避障眼镜；DS18B20；单片机；超声波；LCD1602
Abstract
In order to solve the travel problem of the blind, the navigation tool of the blind obstacle avoidance glasses provides a certain help for the travel of the blind, but in the actual promotion and use process, there are more or less problems such as expensive, poor experience, poor interaction, and not strong real-time. Based on this, this paper plans to make a humanized, intelligent and popular intelligent navigation glasses for the blind.
Through the simulation analysis of the scene of blind people walking on the road, the functions required for the design of the guide glasses system mainly include safety obstacle avoidance, alarm warning and so on. Therefore, this paper designs an intelligent obstacle avoidance glasses for the blind based on STC89C52. The temperature is measured by DS18B20, and the ultrasonic wave is used as temperature compensation. One ultrasonic wave is used to measure the obstacles in front of the person, the other ultrasonic wave is used to measure the obstacles below the human body, the trigger photoresistor is used to detect whether the light is too low, and the minimum distance is set by the button. The data is displayed through the LCD1602 display screen, and the alarm is reminded through the buzzer. If the distance is less than the set minimum value, the buzzer will alarm. In addition, when the blind travel at night, the system will automatically turn on the prompt light, prompting passers-by and vehicles to pay attention to avoid the blind.
Through the physical test, the blind obstacle avoidance glasses not only overcome the shortcomings of the traditional blind obstacle avoidance system, but also simple to use, and can provide a more convenient and safe way for blind friends to travel.
Key words: obstacle avoidance glasses for the blind; DS18B20; Single-chip computer; Ultrasonic wave; LCD1602
目 录
第1章 绪 论
第2章 系统设计分析
第3章 控制系统硬件设计
第4章 系统程序设计
第5章 仿真测试
第6章 实物测试
总 结
参考文献
附 录