CN107424392A - A kind of myopia prevention alarm set - Google Patents

A kind of myopia prevention alarm set Download PDF

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Publication number
CN107424392A
CN107424392A CN201710416049.9A CN201710416049A CN107424392A CN 107424392 A CN107424392 A CN 107424392A CN 201710416049 A CN201710416049 A CN 201710416049A CN 107424392 A CN107424392 A CN 107424392A
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mrow
msup
laser
steering wheel
module
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CN201710416049.9A
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CN107424392B (en
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徐君逸
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders

Abstract

A kind of myopia prevention alarm set, towards user head when the alarm set uses, the device includes a single-chip microcomputer, main rudder machine and from steering wheel, single-chip microcomputer connects main rudder machine and from steering wheel, main rudder machine connection control first laser range finder module is swung up and down simultaneously with second laser module, for positioning the crown and the eye position of user, measure user's eyes and the distance of books, control second laser range finder module is connected from steering wheel to swing, for the position for the whole head for positioning user, measure user whether side head, single-chip microcomputer is also connected with light-inductive module and active buzzer.Single-chip microcomputer connects a bluetooth module.The device uses mainboard of the Arduino nano plates as single-chip microcomputer.

Description

A kind of myopia prevention alarm set
Technical field
The invention belongs to healthy protection technique field, more particularly to a kind of myopia prevention alarm set.
Background technology
Publication No. CN104504869A patent document, disclose it is a kind of " speech prompting device of prevention child myopia, Belong to the pre- myopic-preventing technical field of protect eyes, including power circuit, single chip circuit, ultrasonic wave emitting head, ultrasonic wave connect Receive head, a two-way ball switch, amplification detection circuit, sound circuit and piezoelectric buzzer and necessary shell and wear branch Frame, the present invention are arranged on user's head side, can realize supply voltage detection, battery charge, the detection of environmental noise intensity, The detection and voice message of the angle that tilts between eyes of user extremely observation thing between the detection of distance, head and horizontal plane “。
But the circuit of this myopia prevention alarm set composition is more complicated, technical difficulty height is realized, is unfavorable for reducing production The cost of product.
The content of the invention
Apparatus of the present invention are to be directed to a myopia-proof intelligent reminiscences of the low age student in primary school, to solve existing dress The problem of being set to this height enterprise.
A kind of myopia prevention alarm set, towards user head when the alarm set uses, the device include a single-chip microcomputer, Main rudder machine and from steering wheel, single-chip microcomputer connection main rudder machine, main rudder machine is connected from steering wheel to second laser range finder module, and main rudder machine also connects First laser range finder module is connect,
Main rudder machine connection control first laser range finder module and second laser range finder module are swung up and down together,
The crown and eye position of the first laser range finder module for positioning user, measurement user's eyes and books Distance,
Main rudder machine is swung by connecting control second laser range finder module from steering wheel, for positioning the whole of user Head position and body center line, measurement user whether side head,
Single-chip microcomputer is also connected with light-inductive module and active buzzer.Single-chip microcomputer is also connected with a bluetooth module.
The device uses mainboard of the Arduino nano plates as single-chip microcomputer.
Single-chip microcomputer performs following rate-determining steps：
(1) the constantly upper hue angle of main servos control first laser range finder module, every time up-regulation are less than 1 degree, swashed according to first Whether the return value changes of ligh-ranging module are more than 1 meter,
The angle that main rudder machine is adjusted up and down calculates according to decay coefficient, constantly reduces to be accurately positioned head, decay coefficient Form be：(fixed coefficient)Adjust number。
The references angle of regulation is by program setting angle, as benchmark combination decay coefficient when being adjusted up and down for main rudder machine Calculate the adjustment number of degrees, angle ± references angle × decay coefficient before angle=adjustment after adjustment；
(2) it is inswept from right to left from servos control second laser range finder module, record twice return value changes it is very big when from The angle of steering wheel is respectively γ and σ, and the numerical value of this 2 angles is set to the initial value of user's head position,
Second laser range finder module particles constantly between (γ -5) ° and (σ+5) °, once the head position of scanning gained Put allows mobile scope beyond head, that is, judges user side head, alarm and reminding.
Specifically decision procedure is：Laser be swept to (γ -5) ° and (σ+5) if ° when return value be less than 1 meter, judge head Position allows moving range beyond head.
Further, it is inswept from right to left from servos control second laser range finder module, record data twice in return value The numerical value changed greatly is respectively x and y (measure user position), and steering wheel angle [alpha] and β corresponding to the two numerical value, The width w of user is calculated using the cosine law and finds out central point o, calculates the angle δ that steering wheel needs to adjust back, servos control Laser module, which adjusts back δ °, makes laser alignment central point, this vertical line datum line that steering wheel moves up and down as after of point with desktop, Wherein,
x：The distance of second laser range finder module and user's body right-hand member
y：The distance of second laser range finder module and user's body left end
a：Steering wheel arm lengths
α：The number of degrees that steering wheel rotates when laser is swept to right side of body
β：The number of degrees that steering wheel rotates when laser is swept to left side of body
θ：The angle of laser and body when laser is swept to left side of body
w：Body width
δ：Steering wheel angle of revolution
6 myopia prevention alarm sets as claimed in claim 5, it is characterised in that main servos control first laser range finder module, Being calculated for user's eyes and the distance of books includes：
z：First laser module and the distance on the crown
m：The distance of the crown and eyes (estimated value)
η：Main rudder machine rotational angle
k：First laser module and the distance of center book (estimated value)
n：The rotating shaft of main rudder machine and the distance of eyes
l：The distance of first laser module and weber's point
a：Steering wheel arm lengths
d：Eyes and center book distance
λ：The angle of plane where the line and books of reminiscences and eyes
ζ：The laser and the angle of head that first laser module is sent
Because the situation of child myopia at this stage is increasingly severe, although also layer goes out for various Nearsightedness-preventing pens and sitting position corrector It is not poor, but using trouble and the whether inclined rostral head of child can not be detected, while do not account for insufficient light or too strong yet Infringement to eyesight.If parent does not accompany at one's side in child, can not also understand child eye posture and eye-using environment whether Correctly.The present invention is connected by bluetooth with mobile phone app, facilitates the long-range real-time oversight of parent.User once opens reminiscences electricity Source, will reminiscences start to calculate eyes and books distance.Hypotelorism and side head and surrounding brightness are unsuitable for writing, and all can Drop drop sound is sent to remind.Parent can receive summary (side head number, number of bowing, total time) by app.And it can pass through App beams back " agreement terminates ", informs child's stopping eye, loosens eyes and rest.
The present invention includes relative to the advantages of existing apparatus：
(1) actual range of reader and reading matter is tested, if occurring less than suitable distance (30-35 centimetres) or reader Side head condition, alarm set sends prompting sound, and records.
(2) whether suitable test using up for reader, if exceeding normal brightness intensity (400 to 600 lumen), remind dress Put and send prompting sound, and record.
(3) child was left before using end more than 1 minute, and alarm set sends out message to APP prompting parents.
(4) after use, capacitive buttons are touched, alarm set by hypotelorism, side head and can be sent to hand total time Machine APP.Each data can be recorded by APP.APP is simultaneously emitted by the message of request end to parent.
(5) parent receives the ending request of child's hair, clicks on and agrees to, alarm set will sound one section of music.
(6) for teacher by the APP in job transfer to parent's hand, alarm set records same day operation automatically, and child finishes one Item can click on one of completion on the screen of alarm set.While capacitive buttons are touched, alarm set can remind child The a certain operation of son does not complete.
(7) done the homework if having and listening, parent can allow child oneself that the content of dictation is recorded, and prompting dress is reached by APP Put, played automatically by alarm set
(8) this alarm set is such as widely used, and can collect the information of numerous eye users, is medical science and research aircraft Structure provides original data and related data.
Brief description of the drawings
Fig. 1 is the theory of constitution figure of apparatus of the present invention.
Fig. 2 is second laser range finder module measuring principle figure in the embodiment of the present invention.
Fig. 3 is first laser range finder module measuring principle figure in the embodiment of the present invention.
Fig. 4 be judge in the embodiment of the present invention in second laser range finder module user whether the measuring principle figure of side head.
Embodiment
As shown in figure 1, the myopia prevention alarm set of the present invention, towards user head, the dress when alarm set uses Put including a single-chip microcomputer, main rudder machine and control first laser from steering wheel, single-chip microcomputer connection main rudder machine and from steering wheel, the connection of main rudder machine Range finder module is swung up and down, and for positioning the crown and the eye position of user, measures user's eyes and the distance of books, from Steering wheel connection control second laser range finder module swings, and the position of the whole head for positioning user, measures user Whether side head.
Single-chip microcomputer is also connected with light-inductive module and active buzzer.Single-chip microcomputer is also connected with a bluetooth module.The device Using mainboard of the Arduino nano plates as single-chip microcomputer.
Wherein：
● Arduino nano plates：All data for measuring and calculating are returned in single-chip microcomputer
● laser ranging module：Measure the distance on machine and the user crown, once user side head, can measure machine with The distance of user's shoulder
● steering wheel：Control laser ranging module is rotated up, and records the angle of rotation
● light-inductive module：Measure the numerical value of surrounding brightness
● bluetooth module：All information transfers between machine and app
● active buzzer：According to the judgement of program, if brightness discomfort or hypotelorism etc., buzzer sounds.
When device works, the distance on machine and the child crown is measured first, according to the anglec of rotation surveyed in steering wheel and interior The machine and the distance of center book put obtain the distance of machine and eyes by the cosine law, are obtained again according to the cosine law The distance of books and eyes.
Servos control laser range finder constantly raises, and up-regulation every time is less than 1 degree.Once returning to value changes is more than 1 meter, steering wheel Lower certain number of degrees.Once return to value changes is more than 1 meter again, steering wheel raises again, and this time the number of degrees calculate according to decay coefficient, It can constantly reduce, make laser ranging more accurate.If return value constantly repeats to raise or lower until finding zero without large change Boundary's point.
The single-chip microcomputer that apparatus of the present invention include performs following rate-determining steps：
(1) the constantly upper hue angle of main servos control first laser range finder module, every time up-regulation are less than 1 degree, swashed according to first Whether the return value changes of ligh-ranging module are more than 1 meter,
The angle that main rudder machine is adjusted up and down calculates according to decay coefficient, constantly reduces to be accurately positioned head, decay coefficient Form be：(fixed coefficient)Adjust number。
The references angle of regulation is by program setting angle, as benchmark combination decay coefficient when being adjusted up and down for main rudder machine Calculate the adjustment number of degrees, angle ± references angle × decay coefficient before angle=adjustment after adjustment；
(2) it is inswept from right to left from servos control second laser range finder module, record twice return value changes it is very big when from The angle of steering wheel is respectively γ and σ, and the numerical value of this 2 angles is set to the initial value of user's head position,
Second laser range finder module particles constantly between (γ -5) ° and (σ+5) °, once the head position of scanning gained Put allows mobile scope beyond head, that is, judges user side head, alarm and reminding.
Specifically decision procedure is：Laser be swept to (γ -5) ° and (σ+5) if ° when return value be less than 1 meter, judge head Position allows moving range beyond head.
Further, it is inswept from right to left from servos control second laser range finder module, record data twice in return value The numerical value changed greatly is respectively x and y (measure user position), and steering wheel angle [alpha] and β corresponding to the two numerical value, The width w of user is calculated using the cosine law and finds out central point o, calculates the angle δ that steering wheel needs to adjust back, servos control Laser module, which adjusts back δ °, makes laser alignment central point, this vertical line datum line that steering wheel moves up and down as after of point with desktop, Wherein,
x：The distance of second laser range finder module and user's body right-hand member
y：The distance of second laser range finder module and user's body left end
a：Steering wheel arm lengths
α：The number of degrees that steering wheel rotates when laser is swept to right side of body
β：The number of degrees that steering wheel rotates when laser is swept to left side of body
θ：The angle of laser and body when laser is swept to left side of body
w：Body width
δ：Steering wheel angle of revolution
6 myopia prevention alarm sets as claimed in claim 5, it is characterised in that main servos control first laser range finder module, Being calculated for user's eyes and the distance of books includes：
z：First laser module and the distance on the crown
m：The distance of the crown and eyes (estimated value)
η：Main rudder machine rotational angle
k：First laser module and the distance of center book (estimated value)
n：The rotating shaft of main rudder machine and the distance of eyes
l：The distance of first laser module and weber's point
a：Steering wheel arm lengths
d：Eyes and center book distance
λ：The angle of plane where the line and books of reminiscences and eyes
ζ：The laser and the angle of head that first laser module is sent

Claims (6)

  1. A kind of 1. myopia prevention alarm set, towards user head when the alarm set uses, it is characterised in that the device includes One single-chip microcomputer, main rudder machine and from steering wheel, single-chip microcomputer connection main rudder machine, main rudder machine is connected from steering wheel to second laser range finder module, Main rudder machine is also connected with first laser range finder module,
    Main rudder machine connection control first laser range finder module and second laser range finder module are swung up and down together,
    First laser range finder module is used to position the crown and the eye position of user, measure user's eyes and books away from From,
    Main rudder machine is swung by connecting control second laser range finder module from steering wheel, for positioning the whole head of user Position and the center line of body, measurement user whether side head,
    Single-chip microcomputer is also connected with light-inductive module and active buzzer.
  2. 2. myopia prevention alarm set as claimed in claim 1, it is characterised in that single-chip microcomputer connects a bluetooth module.
  3. 3. myopia prevention alarm set as claimed in claim 1, it is characterised in that the device is using Arduino nano plates as single The mainboard of piece machine.
  4. 4. myopia prevention alarm set as claimed in claim 1, it is characterised in that single-chip microcomputer performs following rate-determining steps：
    (1) the constantly upper hue angle of main servos control first laser range finder module, every time up-regulation are less than 1 degree, surveyed according to first laser Whether the return value changes away from module are more than 1 meter,
    The angle that main rudder machine is adjusted up and down calculates according to decay coefficient, constantly reduces to be accurately positioned head,
    The references angle of regulation is calculated by program setting angle when being adjusted up and down for main rudder machine as benchmark combination decay coefficient Adjust the number of degrees, angle ± references angle × decay coefficient before angle=adjustment after adjustment；
    (2) it is inswept from right to left from servos control second laser range finder module, record when return value changes are very big twice from steering wheel Angle be respectively γ and σ, the numerical value of this 2 angles is set to the initial value of user's head position,
    Second laser range finder module particles constantly between (γ -5) ° and (σ+5) °, once the head position of scanning gained surpasses Going out head allows mobile scope, that is, judges user side head, alarm and reminding.
  5. 5. myopia prevention alarm set as claimed in claim 4, it is characterised in that from servos control second laser range finder module from the right side To left inswept, it is respectively x and y (measure user position) to record in return value the larger numerical value of data variation twice, and this Steering wheel angle [alpha] and β corresponding to two values, calculate the width w of user using the cosine law and find out central point o, calculate Go out the angle δ that steering wheel needs to adjust back, servos control laser module, which adjusts back δ °, makes laser alignment central point, this vertical line of point with desktop The datum line moved up and down as steering wheel afterwards, wherein,
    x：The distance of second laser range finder module and user's body right-hand member
    y：The distance of second laser range finder module and user's body left end
    a：Steering wheel arm lengths
    α：The number of degrees that steering wheel rotates when laser is swept to right side of body
    β：The number of degrees that steering wheel rotates when laser is swept to left side of body
    θ：The angle of laser and body when laser is swept to left side of body
    w：Body width
    δ：Steering wheel angle of revolution
    <mrow> <mi>w</mi> <mo>=</mo> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <mi>x</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <mi>y</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>-</mo> <mn>2</mn> <mrow> <mo>(</mo> <mi>x</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mi>y</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mo>&amp;times;</mo> <mi>c</mi> <mi>o</mi> <mi>s</mi> <mrow> <mo>(</mo> <mi>&amp;beta;</mi> <mo>-</mo> <mi>&amp;alpha;</mi> <mo>)</mo> </mrow> </mrow> </msqrt> </mrow>
    <mrow> <mi>&amp;theta;</mi> <mo>=</mo> <msup> <mi>sin</mi> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> <mo>&amp;lsqb;</mo> <mfrac> <mrow> <mo>(</mo> <mi>x</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> <mo>&amp;times;</mo> <mi>s</mi> <mi>i</mi> <mi>n</mi> <mo>(</mo> <mi>&amp;beta;</mi> <mo>-</mo> <mi>&amp;alpha;</mi> <mo>)</mo> </mrow> <mi>w</mi> </mfrac> <mo>&amp;rsqb;</mo> </mrow> 1
    <mrow> <mi>&amp;delta;</mi> <mo>=</mo> <msup> <mi>sin</mi> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> <mrow> <mo>&amp;lsqb;</mo> <mfrac> <mrow> <mi>sin</mi> <mrow> <mo>(</mo> <mi>&amp;theta;</mi> <mo>)</mo> </mrow> <mo>&amp;times;</mo> <mi>w</mi> </mrow> <mrow> <mn>2</mn> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <mrow> <mi>y</mi> <mo>+</mo> <mi>a</mi> </mrow> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <mfrac> <mn>1</mn> <mn>4</mn> </mfrac> <msup> <mi>w</mi> <mn>2</mn> </msup> <mo>-</mo> <mi>w</mi> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mrow> <mi>y</mi> <mo>+</mo> <mi>a</mi> </mrow> <mo>)</mo> </mrow> <mo>&amp;times;</mo> <mi>cos</mi> <mrow> <mo>(</mo> <mi>&amp;theta;</mi> <mo>)</mo> </mrow> </mrow> </msqrt> </mrow> </mfrac> <mo>&amp;rsqb;</mo> </mrow> <mo>.</mo> </mrow>
  6. 6. myopia prevention alarm set as claimed in claim 5, it is characterised in that main servos control first laser range finder module, it is right Being calculated in user's eyes and the distance of books includes：
    z：First laser module and the distance on the crown
    m：The distance of the crown and eyes (estimated value)
    η：Main rudder machine rotational angle
    k：First laser module and the distance of center book (estimated value)
    n：The rotating shaft of main rudder machine and the distance of eyes
    l：The distance of first laser module and weber's point
    a：Steering wheel arm lengths
    d：Eyes and center book distance
    λ：The angle of plane where the line and books of reminiscences and eyes
    ζ：The laser and the angle of head that first laser module is sent
    <mrow> <mi>n</mi> <mo>=</mo> <msqrt> <mrow> <msup> <mrow> <mo>(</mo> <mi>z</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <mi>m</mi> <mn>2</mn> </msup> <mo>-</mo> <mn>2</mn> <mo>&amp;times;</mo> <mi>m</mi> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mi>z</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mo>&amp;times;</mo> <mi>c</mi> <mi>o</mi> <mi>s</mi> <mrow> <mo>(</mo> <mi>&amp;zeta;</mi> <mo>)</mo> </mrow> </mrow> </msqrt> </mrow>
    <mrow> <mi>&amp;lambda;</mi> <mo>=</mo> <mi>&amp;eta;</mi> <mo>-</mo> <msup> <mi>sin</mi> <mrow> <mo>-</mo> <mn>1</mn> </mrow> </msup> <mrow> <mo>(</mo> <mfrac> <mrow> <mi>s</mi> <mi>i</mi> <mi>n</mi> <mrow> <mo>(</mo> <mi>&amp;zeta;</mi> <mo>)</mo> </mrow> <mo>&amp;times;</mo> <mi>m</mi> </mrow> <mi>n</mi> </mfrac> <mo>)</mo> </mrow> </mrow>
    <mrow> <mi>d</mi> <mo>=</mo> <msqrt> <mrow> <msup> <mi>n</mi> <mn>2</mn> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <mi>k</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>-</mo> <mn>2</mn> <mo>&amp;times;</mo> <mi>n</mi> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mi>k</mi> <mo>+</mo> <mi>a</mi> <mo>)</mo> </mrow> <mo>&amp;times;</mo> <mi>c</mi> <mi>o</mi> <mi>s</mi> <mrow> <mo>(</mo> <mi>&amp;lambda;</mi> <mo>)</mo> </mrow> </mrow> </msqrt> <mo>.</mo> </mrow> 2
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Cited By (6)

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CN108320475A (en) * 2018-04-12 2018-07-24 湘潭大学 A kind of smart myopia sitting-posture correction device
CN108387209A (en) * 2018-02-26 2018-08-10 上海朗奢科技有限公司 Intelligent distance-measuring system applied to study inspection platform
CN108877166A (en) * 2018-07-23 2018-11-23 广东小天才科技有限公司 A kind of sitting posture reminder
CN109819402A (en) * 2019-01-08 2019-05-28 李超豪 For supervising the method and its system that improve study habit
CN110246310A (en) * 2019-06-28 2019-09-17 厦门集长新材料科技有限公司 A kind of myopia prevention system for prompting and the intelligent desk lamp using the system
CN111599142A (en) * 2020-05-15 2020-08-28 安徽猫头鹰科技有限公司 Wearable intelligent eye protection light monitoring equipment for teenagers

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CN203706383U (en) * 2014-02-18 2014-07-09 符哲瀚 Intelligent eyesight spine protection instrument
CN105528871A (en) * 2014-09-29 2016-04-27 肖文怡 Myopia prevention prompter
CN204328624U (en) * 2014-12-24 2015-05-13 深圳市易特科信息技术有限公司 Intelligent healthy based on human body attitude eye protective device
CN105096313A (en) * 2015-06-17 2015-11-25 杭州凯特电器有限公司 Intelligent myopia prevention control system of display and control method thereof
CN205302590U (en) * 2016-01-05 2016-06-08 王思博 Appearance is reminded to student's myopia prevention
CN206805756U (en) * 2017-06-06 2017-12-26 徐君逸 A kind of myopia prevention alarm set

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CN108387209A (en) * 2018-02-26 2018-08-10 上海朗奢科技有限公司 Intelligent distance-measuring system applied to study inspection platform
CN108320475A (en) * 2018-04-12 2018-07-24 湘潭大学 A kind of smart myopia sitting-posture correction device
CN108877166A (en) * 2018-07-23 2018-11-23 广东小天才科技有限公司 A kind of sitting posture reminder
CN109819402A (en) * 2019-01-08 2019-05-28 李超豪 For supervising the method and its system that improve study habit
CN109819402B (en) * 2019-01-08 2021-07-06 李超豪 Method and system for supervising and improving learning habits
CN110246310A (en) * 2019-06-28 2019-09-17 厦门集长新材料科技有限公司 A kind of myopia prevention system for prompting and the intelligent desk lamp using the system
CN111599142A (en) * 2020-05-15 2020-08-28 安徽猫头鹰科技有限公司 Wearable intelligent eye protection light monitoring equipment for teenagers

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