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Multifunctional eyesight protector

A protector and multi-functional technology, applied in the direction of instruments, alarms, etc., can solve problems such as single structure and function

Inactive Publication Date: 2014-10-15
张熙杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many vision protector manufacturers at home and abroad, most of which help students protect their eyesight by correcting their sitting posture, but most of them have a single structure and function, and cannot effectively solve the problem of preventing students from myopia. A multi-functional eyesight protector based on single-chip microcomputer technology. The single-chip microcomputer is used to control the light detection function, distance test function, and timing alarm function through C language programming. It is implemented on a circuit board and made into a simple eyesight protector.

Method used

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  • Multifunctional eyesight protector

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Embodiment

[0015] The multifunctional eyesight protector includes a single-chip microcomputer and a circuit. The single-chip microcomputer is the control core, adopts 89C52 single-chip microcomputer, and uses C language to program. The included functional modules are: light detection module, alarm module, distance detection module, and some display modules; Said circuit comprises ranging alarm circuit, light intensity alarm circuit and timing alarm circuit;

[0016] The control circuit of the single-chip microcomputer is mainly realized by the C language through the timer counter and the P3.4 pin, and the timing is 45 minutes; 100ms uses the T0 timing to set the T0 working mode 1, and 30000 counts with T2, and the setting T2 working mode is 11 ;The initial timing value of T0: 2^16-100ms / 2us=15536=C3B0H; the initial counting value of T1: 65536-30000=35536=8AD0H;

[0017] The distance measurement alarm circuit adopts ultrasonic detection, and the test distance is set to 35CM; the test dist...

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Abstract

The invention discloses a multifunctional eyesight protector which comprises a single-chip microcomputer and a circuit. The single-chip microcomputer is a control core. The 89C52 single-chip microcomputer is used. C language programming is used. Function modules of a light detection module, an alarm module, a distance detection module and a display part module are comprised. The circuit comprises a distance measurement and alarm circuit, a light intensity alarm circuit and a timing alarm circuit. According to the invention, the use of the multifunctional eyesight protector is simple and convenient; and a user can adjust the eye using time and the distance according to the displayed numbers, so as not to depend upon the prompt of an alarm.

Description

technical field [0001] The invention relates to a reminder alarm, in particular to a vision protector for reminder and alarm. Background technique [0002] Since entering the 21st century, juvenile myopia has become a major problem that seriously affects the future of teenagers in the world. Due to the increase of learning pressure and the popularization of electronic products, the myopia of students has tended to be younger. Among the students born in the 1990s, most of the myopia patients were middle school students or college students, while students born in the 2000s already had a lot of myopia. Patients, they put on glasses early in primary school, it can be seen that the weakening of vision of teenagers is getting worse, and once they wear glasses, no matter how much money they spend in the future, they will not be able to restore the original vision. Vision, or even maintaining current vision is not easy. Experts believe that the reasons for students' myopia are gen...

Claims

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Application Information

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IPC IPC(8): G08B21/24
Inventor 张熙杰
Owner 张熙杰