天津职业技术师范大学学报

为解决青少年视力下降问题,设计一款基于单片机STC89C52RC的多功能视力保护器。该保护器使用C语言编程,利用电路模块化的设计思路,采用主控制器模块、超声波测距模块HC-SR04、温度检测模块、光线检测模块、显示模块等,对用户读写参数进行计时控制、距离测量、环境监测及实时显示等。根据预先对不同学习环境下的读写时间、环境光线强度和眼距书本的距离设置相应的标准值,实现了对不符合标准的参数进行声光报警、振动、音乐及语音提示等多种方式的提醒功能,帮助使用者改善读书习惯,实现全方位视力保护功能。

In order to solve the problem of eyesight decreased in adolescents,a multifunctional eyesight protector based on single-chip microcomputer STC89 C52 RC is designed. Based on C language programming and the design idea of circuit modularization,the protector adopts main controller module,ultrasonic ranging module HC-SR04,temperature detection module,light detection module and display module to control user read-write parameters,distance measurement,environmental monitoring and real-time display. The standard values of light intensity,reading and writing time of users,and the distance between book and eyes are set in different environments. Compared with these standard values,the parameters which are not in line with the standards will be reminded in multi-ways,such as acousto-optic alarm,vibration,music and phonetic hints,etc. Thus,it can help users improve reading habits and achieve eyesight protection comprehensively.