摘要
为了预防青少年由于不良使用电子产品和阅读坐姿不当而造成的近视。介绍了一种基于Arduino系统的视力保护仪方案。系统以Arduino UNO为主控制单元,外接有HC-SR04构成的超声波测距电路、四电压比较器LM339和光敏电阻组成光检测电路、声光报警电路、LCD-1602显示电路。通过超声波测量出眼睛与书本或其他电子产品的距离从而来调节人的坐姿;通过光检测电路测量出周围的光线,及时补充和调整光源,最终实现保护人们的视力。实验结果表明,在理想的测试环境条件下,该设计方案相对误差较小,具有一定的可行性。
A vision protection device based on Arduino system is introduced in this paper.The system uses Arduino UNO as the main control unit,connected with an ultrasonic ranging circuit composed of HC-SR04,a four-voltage comparator LM339 and a photoresistor which form a light detecting circuit,an audible and visual alarm circuit,and an LCD-1602 display circuit.The distance between the eye and the book or other electronic products is measured by ultrasonic waves to adjust the sitting posture.The surrounding light is measured by the light detecting circuit,and the light source is supplemented and adjusted in time to finally protect the vision.
出处
《工业控制计算机》
2018年第12期151-153,共3页
Industrial Control Computer
基金
2016年度广东省普通高校特色创新类项目(2016GXJK126)
广东第二师范学院2017年度大学生创新创业训练计划项目"基于单片机的红外视力保护仪的设计(201714278020)"
