CN207764738U - A kind of tablet computer eyesight protection system - Google Patents
A kind of tablet computer eyesight protection system Download PDFInfo
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- CN207764738U CN207764738U CN201721571656.4U CN201721571656U CN207764738U CN 207764738 U CN207764738 U CN 207764738U CN 201721571656 U CN201721571656 U CN 201721571656U CN 207764738 U CN207764738 U CN 207764738U
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Abstract
A kind of tablet computer eyesight protection system, including camera, distance and luminance sensor, information processing system, correction reminding module；The information processing system includes recognition of face program module；Camera, distance and the luminance sensor corrects reminding module and is connected with information processing system；The camera is for acquiring image data；The recognition of face program module is for being identified the face in image data；The distance and luminance sensor calculates the spacing of face and tablet computer for assisting recognition of face；The correction reminding module is for sending out indicating alarm.It is equipped in the information processing system and corrects tip distance preset value.The utility model has the advantage of：It can be to carrying out warning prompt too close to tablet computer, to protect eyesight.
Description
Technical field
The utility model relates in general to optics precision ranging technical field, and in particular to has used optics precision ranging technology
Education tablet computer eyesight protection system.
Background technology
As national information development strategy is included in IT application in education sector, carries out information-based, interactive with internet and move
The New teaching model of dynamicization is adopted by more and more schools, and campus is covered in Modern Information teaching and wireless network
Under conditions of, the easy to use, portable of tablet computer frivolous makes it be loved and pursue between Faculty and Students.However,
Between tablet computer gives teachers and students exchange and interdynamic it is happy simultaneously, also unconsciously bring it is potentially hazardous.
Tablet computer is direct illuminator, and picture color is beautiful, and visual stimulus is excessively strong.Although tablet computer all has
Brightness control function, but this automatic adjustment is designed by adult's standard, and the student still in body development period is come
It says and performs practically no function；Damage and the lesion for being easily lead to retina and macular area by strong light stimulus for a long time, occur that therewith
Visual impairment and colour vision sensibility reduce, serious even to cause irreversible damage to not yet full grown nervous system；
In addition, student is when using tablet computer, eyes can paste quite close with screen, this more exacerbates the injury to eyes, when long
Between using will appear asthenopia, and then influence eye focusing function, induce myopia.
Under such application background, it is necessary to a kind of effective education tablet computer sight protectio solution, it is a kind of
It is suitble to students in middle and primary schools to use, tablet computer is embedded, and precision ranging, automatic brightness adjustment, camera sitting posture is supported to monitor and carry
The eyesight protection system for showing correct sitting posture information is reminded, corrects the undesirable use habit of numerous students in middle and primary schools, safe handling education
Tablet computer fundamentally prevents visual problems.
Currently, the measurement of distance mainly uses infrared optical measurement techniques, by measuring the light quantity of reflected light come estimated distance,
The disadvantage of this method be testee color and surface on measurement accuracy influence it is very big, which results in remind, entangle
It is just not accurate enough.
Invention content
The purpose of this utility model is to provide a kind of tablet computer eyesight protection system, come solve using tablet computer when
Sight protectio problem.
The technical solution of the utility model is：A kind of tablet computer eyesight protection system, including camera, distance and brightness
Sensor, corrects reminding module at information processing system；The information processing system includes recognition of face program module；It is described
Camera, distance and luminance sensor, correct reminding module be connected with information processing system；The camera is for acquiring
Image data；The recognition of face program module is for being identified the face in image data；The distance and bright
Degree sensor calculates the spacing of face and tablet computer for assisting recognition of face；The correction reminding module is for sending out
Go out indicating alarm.
Particularly, the distance and luminance sensor are VL6180X Three-in-one miniature sensors.
Particularly, the camera is located at the front of tablet computer.
Particularly, the information processing system includes the microprocessor of model MT8163, recognition of face program.
Particularly, it is equipped in the information processing system and corrects tip distance preset value.
The utility model has the advantage of：The precision of distance between human eye and tablet is improved, it can more in time, accurately
Send out prompting, correction signal.
Description of the drawings
Fig. 1 is the connection diagram of the utility model.
The symbol description of Fig. 1 is as follows：
1, camera；2, distance and luminance sensor；3, information processing system；4, reminding module is corrected.
Specific implementation mode
In order to more clearly describe the technology contents of the utility model, come into traveling one with reference to specific embodiment
The description of step.
A kind of tablet computer eyesight protection system, including camera 1, distance and luminance sensor 2, information processing system 3,
Correct reminding module 4；The information processing system 3 includes recognition of face program module；The camera 1, distance and bright
Degree sensor 2, correction reminding module 4 are connected with information processing system 3；The camera 1 is for acquiring image data；It is described
Recognition of face program module for the face in image data to be identified；The distance and luminance sensor 2 is used for
Recognition of face is assisted, and calculates the spacing of face and tablet computer；The correction reminding module 4 is for sending out indicating alarm.
The principles of the present invention are：When user opens tablet computer, distance and luminance sensor 2 obtain ambient lighting
Information is spent, information processing system 3 is according to preset value adjust automatically screen backlight in the light intensity table of comparisons to appropriate brightness；Camera 1
Automatic to obtain image information, information processing system 3 carries out illumination compensation pretreatment to present image, eliminates non-homogeneous front lighting and shines
Caused by shadow and highlight influence, be based on geometric properties algorithm, by part geometries such as eyes, nose, face, chins
Structural relation identification, detect in the scene the presence of face and determine its position；After success locating human face, distance and brightness
Sensor 2 starts and measures light from face reflected back towards receiver required time, is based on flight time ToF principle, calculates simultaneously defeated
Go out high-precision Models of Absolute Distance Measurement Based data；3 real-time analyzing processing face location information of information processing system and range information, when detecting
When face location deviates pre-set range or is less than pre-set numerical value at a distance from screen, reminding module 4 is corrected
Pre-set correction prompt message is played by sound, until pose recovery is correct；Screen display is prompted with suspension windows side
Formula shows pre-set correction prompt message, and the prompt message is automatically closed when pose recovery is correct.
The distance and luminance sensor 2 is VL6180X Three-in-one miniature sensors.The sensor is especially suitable for surveying
Human eye is measured at a distance from flat plate panel, which is based on flight time ToF principle, exports high-precision Models of Absolute Distance Measurement Based data.Mesh
The color and reflected light for marking object do not interfere with distance measurement result, and the FlightSense technologies of quick response can distinguish object
The lateral or longitudinal movement of body；Sensor internal is completed ranging and is calculated；Inner laser device emits 940nm wavelength non-visible lights, no
Eyes are injured, the problem of disperseing people's attention with other infrared proximity detection sensors transmitting feux rouges is eliminated, enhances pair
The interference free performance of external light source.
The camera 1 is located at the front of tablet computer.
The information processing system 3 includes the microprocessor of model MT8163.The information processing system 3 includes figure
Processor, powerful operation and graphics capability ensure that the information fast processings energy such as distance calculates and human face posture identifies
Power.Recognition of face program in information processing system 3 needs the image absorbed to camera 1 using the illumination mode parameter that prestores
Targetedly illumination compensation is carried out, eliminating shadow and highlight caused by non-homogeneous front lighting shines influences, and is based on geometric properties algorithm,
By to the identification of the structural relations of the part geometries such as eyes, nose, face, chin, determining face location information, by away from
From the informixes processing such as accurate measurement and calculating, differentiate whether the current sitting posture of student is correct.
It is equipped in the information processing system 3 and corrects tip distance preset value, it can be according to the use of different age group
Person is arranged to different distances, such as is arranged and is arranged between 25cm-35cm, when less than this apart from when correct reminding module 4 send out
Go out indicating alarm.
Correct reminding module 4 prompts two parts to form by voice prompt and screen display, and voice prompt is raised one's voice by built-in
Device or earphone play pre-set correction prompt message, can be prompted repeatedly when posture is incorrect, until pose recovery is correct；
Screen display prompt shows pre-set correction prompt message in a manner of suspension windows, is automatically closed when pose recovery is correct
The prompt message.
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still can be with
The spirit and scope that various modification can be adapted and converts without departing from the utility model.Therefore, the description and the appended drawings should be considered as
Illustrative and not restrictive.
Claims (5)
1. a kind of tablet computer eyesight protection system, it is characterised in that：Including camera（1）, distance and luminance sensor（2）、
Information processing system（3）, correct reminding module（4）；The information processing system（3）Including recognition of face program module；
The camera（1）, distance and luminance sensor（2）, correct reminding module（4）With information processing system（3）It is connected；
The camera（1）For acquiring image data；
The recognition of face program module is for being identified the face in image data；
The distance and luminance sensor（2）For assisting recognition of face, and calculate the spacing of face and tablet computer；
The correction reminding module（4）For sending out indicating alarm.
2. tablet computer eyesight protection system as described in claim 1, it is characterised in that：The distance and luminance sensor
（2）It is VL6180X Three-in-one miniature sensors.
3. tablet computer eyesight protection system as described in claim 1, it is characterised in that：The camera（1）Positioned at flat
The front of plate computer.
4. tablet computer eyesight protection system as described in claim 1, it is characterised in that：The information processing system（3）
Microprocessor, recognition of face program including model MT8163.
5. tablet computer eyesight protection system as described in claim 1, it is characterised in that：The information processing system（3）
Interior be equipped with corrects tip distance preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571656.4U CN207764738U (en) | 2017-11-22 | 2017-11-22 | A kind of tablet computer eyesight protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571656.4U CN207764738U (en) | 2017-11-22 | 2017-11-22 | A kind of tablet computer eyesight protection system |
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| Publication Number | Publication Date |
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| CN207764738U true CN207764738U (en) | 2018-08-24 |
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| CN201721571656.4U Active CN207764738U (en) | 2017-11-22 | 2017-11-22 | A kind of tablet computer eyesight protection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110532750A (en) * | 2019-09-03 | 2019-12-03 | 南京信息职业技术学院 | System and method based on time-of-flight method 3D modeling technology prevention and control child myopia |
-
2017
- 2017-11-22 CN CN201721571656.4U patent/CN207764738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110532750A (en) * | 2019-09-03 | 2019-12-03 | 南京信息职业技术学院 | System and method based on time-of-flight method 3D modeling technology prevention and control child myopia |
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