CN102510457A - Method for protecting eyesight - Google Patents
Method for protecting eyesight Download PDFInfo
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- CN102510457A CN102510457A CN2011104260080A CN201110426008A CN102510457A CN 102510457 A CN102510457 A CN 102510457A CN 2011104260080 A CN2011104260080 A CN 2011104260080A CN 201110426008 A CN201110426008 A CN 201110426008A CN 102510457 A CN102510457 A CN 102510457A
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Abstract
The invention discloses a method for protecting eyesight. The method comprises the following steps: presetting a time period; detecting an audience who is the most close to the screen once in each time period, and acquiring the viewing distance of the audience; determining whether the viewing distance is smaller than the preset value; when the viewing distance is smaller than the preset value, generating a first reminding information indicating that the viewing distance is too small, until the audience moves out of the area of the preset value. According to the invention, only the viewing distance of the audience who is the most close to the screen is acquired, such that whether the audience viewing distance satisfy the requirement of a scientific viewing distance can be rapidly determined; it is not necessary to acquire a viewing distance of every audience, such that working load of corresponding hardware is reduced. When the viewing distance of the audience is smaller than the preset value, the first reminding information is generated for indicating the audience that the viewing distance is too small. The audience adjusts the viewing distance according to the first reminding information, such that a requirement of scientific and healthy viewing of TV program can be satisfied, and audience health is prevented from being influenced by a small viewing distance.
Description
Technical field
The present invention relates to the screen display field, specially refer to a kind of sight protectio method.
Background technology
Along with television set updates, the screen of TV set size becomes bigger and bigger, yet after television screen changed from small to big, spectators' the custom (like viewing distance, display brightness and demonstration colour temperature etc.) of watching did not but change.But watch to health science TV programme, need be according to situation such as the brightness of different television sets, radiation, adjustment spectators' viewing distance with watch duration etc.Symptoms such as television set of the prior art does not remind spectators abstemiously, scientifically to watch the function of TV programme, has caused a lot of spectators because of for a long time, closely watch the TV programme eyesight to descend, and concurrent headache is puckery.
Summary of the invention
Main purpose of the present invention provides a kind of method of vision protection, is intended to help spectators to appreciate program with the science viewing distance, avoid because of viewing distance little and unhealthful.
The embodiment of the invention provides a kind of method of vision protection, may further comprise the steps:
The Preset Time section detects once nearest apart from screen spectators in each time period, obtain said spectators' viewing distance;
Judge that whether said viewing distance is less than preset value;
When said viewing distance during less than preset value, it is too small with prompting spectators viewing distance to produce first prompting message, outside said spectators move to the preset value zone.
Preferably, in said Preset Time section, detect once nearest apart from screen spectators in each time period, the viewing distance that obtains said spectators also comprises before: accept spectators and select to get into the sight protectio pattern.
Preferably, said Preset Time section detects once nearest apart from screen spectators in each time period, and the concrete steps of obtaining said spectators' viewing distance are:
The Preset Time section, a spectators' of identification face or eye feature lock the spectators nearest apart from screen in each time period;
Measure said spectators' face or the distance between eye feature and the screen, obtain viewing distance.
Preferably, after face that discerns spectators or eye feature, also comprise:
Store the spectators face or the eye feature of said identification;
Write down the face of said storage or eye feature spectators' first duration of watching TV;
When said first duration surpassed the first threshold of setting, it was long with prompting spectators viewing time to produce second alerting signal, and the spectators that surpass first threshold until said first duration frame out.
Preferably, after the face of the said storage of said record or eye feature spectators' first duration of watching TV, also comprise:
When the face or the eye feature spectators of said storage are not identified then, judge that said spectators leave;
Write down second duration that said spectators leave;
During second threshold value that surpass to set when said second duration, the said spectators' of zero clearing first duration, and remove said spectators' face or eye feature record.
Preferably, when the first threshold of surpass setting when said first duration, it is long with prompting spectators viewing time to produce second alerting signal, also comprises after the spectators that surpass first threshold until said first duration frame out:
Write down the 3rd duration that said spectators leave;
When said the 3rd duration during, remove the spectators' of this storage face or eye feature record more than or equal to the 3rd threshold value;
When said the 3rd duration less than the 3rd threshold value of setting, and said spectators are when watching once more, it is too short with prompting spectators' time of having a rest to produce the 3rd alerting signal, frames out until said spectators.
Preferably, said first alerting signal, said second alerting signal and said the 3rd alerting signal are one or more in voice signal, picture signal, letter signal, light signal and the screen display luminance signal.
Preferably, said preset value obtains according to screen size.
Preferably, when said viewing distance during less than preset value, it is too small with prompting spectators viewing distance to produce first prompting message, until said spectators move to the preset value zone outside, also comprises afterwards:
Gather the brightness of surround lighting;
According to the brightness of the surround lighting of gathering, regulate the colour temperature of screen display.
The present invention is through when spectators watch TV programme; The nearest spectators of chosen distance screen all spectators measure the distance between these spectators and the screen before screen, obtain viewing distance; At spectators' viewing distance during less than preset value; It is too small to produce first prompting message prompting spectators viewing distance, and spectators reach the requirement that science is watched TV programme healthily according to this first prompting message adjustment viewing distance; Avoid because of viewing distance little and unhealthful (descend like eyesight, headache, dizzy, symptom such as eye is puckery occur).Owing to only obtain the spectators' nearest viewing distance,, alleviated the work load of corresponding hardware so the present invention can judge comparatively fast whether spectators' viewing distance meets the requirement of science viewing distance, and need not to obtain every spectators' viewing distance apart from screen.
Description of drawings
Fig. 1 is the flow chart of method first embodiment of a kind of vision protection of the present invention;
Fig. 2 is the flow chart of the concrete steps of detection spectators' viewing distance among method first embodiment of a kind of vision protection of the present invention;
Fig. 3 is the flow chart of method second embodiment of a kind of vision protection of the present invention;
Fig. 4 is the flow chart of method the 3rd embodiment of a kind of vision protection of the present invention;
Fig. 5 is the flow chart of method the 4th embodiment of a kind of vision protection of the present invention;
Fig. 6 is the flow chart of method the 5th embodiment of a kind of vision protection of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, Fig. 1 is the flow chart of method first embodiment of a kind of vision protection of the present invention.As shown in Figure 1, this flow process may further comprise the steps:
Step S01, the Preset Time section detects once nearest apart from screen spectators in each time period, obtain said spectators' viewing distance; In the embodiment of the invention,, make and detect once nearest spectators in each time period of position induction device, obtain said spectators' viewing distance apart from screen through the Preset Time section.This Preset Time can be 0 in specific embodiment, promptly continues to detect; Perhaps be the other times section, detect once like random time sections such as 5 minutes, 10 minutes or 30 minutes; Being provided with of this Preset Time section can be at interval, as whenever continuing to detect 5 minutes at a distance from 10 minutes.As those skilled in the art known position induction device can be infrared inductor; Through infrared inductor all spectators' locking spectators nearest before being arranged in screen apart from screen; Further obtain these spectators' nearest information, like the distance between these spectators and the screen apart from screen.
Step S02 judges that whether said viewing distance is less than preset value; According to the viewing distance that obtains among the step S01, the preset value of this viewing distance and setting is compared.In specific embodiment, this preset value can be the predefined value of size to different screen; Can also be the screen size that television set detects self automatically, search a corresponding preset value according to the screen size that detects, the acquisition of this preset value can obtain or obtain through specific calculating through look-up table.When judged result is a viewing distance during greater than this preset value, then screen normally shows.When judged result is that viewing distance is during less than preset value, like step S03.
Step S03, when said viewing distance during less than preset value, it is too small with prompting spectators viewing distance to produce first prompting message, outside said spectators move to the preset value zone.When said viewing distance during less than preset value, produce first prompting message, first prompting message is one or more in voice signal, picture signal, letter signal, light signal and the screen display luminance signal.As image or captions or Flash, the linearity of reporting the too small spectators of the too small voice messaging of viewing distance, screen display viewing distance turn down one or more modes such as screen display brightness remind spectators' science healthy watch TV programme, prevent because of closely watching TV programme eyesight descend concurrent headache, dizziness, symptom such as puckery.First prompting message continues demonstration and moves to outside the preset value zone until the too small spectators of determined viewing distance.When many people watched TV programme, every spectators' viewing distance all need meet the healthy viewing distance of science.
Spectators need the TV programme of watching of science health; But maybe be because some reason; Can select not use the method for above-mentioned vision protection; Consider to respect the needs that spectators select, in specific embodiment, before step S01, also comprise the steps: to accept spectators and select to get into the sight protectio pattern.The television set default setting is in the vision protection pattern, but before watching TV programme, spectators can at first select to cancel the vision protection pattern, have so just satisfied different spectators' needs, have embodied humanization design concept.
In conjunction with Fig. 2, Fig. 2 is the flow chart of the concrete steps of detection spectators' viewing distance among method first embodiment of a kind of vision protection of the present invention.As shown in Figure 2, the Preset Time section detects the expendable locked spectators nearest apart from screen in each time period, and the viewing distance that obtains said spectators comprises following concrete steps:
Step S011, the Preset Time section, a spectators' of identification face or eye feature lock the spectators nearest apart from screen in each time period; Owing to except spectators, also have other objects before the screen, need tentatively recognize spectators at this; Spectators have a lot of characteristics can be used to distinguish other objects, and spectators' face or eye feature can also pass through other Characteristic Recognition certainly during optimum characteristic; Like hair, health and body temperature etc.Tentatively discern spectators' face or eye feature through infrared inductor.Increase the weight of the workload of hardware for fear of measuring the distance between all spectators and the screen; Behind face that has discerned all spectators or eye feature; All spectators' face or the distance between eye feature and the screen are tentatively judged, locked the spectators nearest apart from screen.
Step S012 measures said spectators' face or the distance between eye feature and the screen, obtains viewing distance.After the spectators' that locking is nearest apart from screen the face or eye feature, promptly confirmed the spectators' nearest apart from screen position, measuring spectators and the distance between the screen of confirming the position is technology well-known to those skilled in the art, repeats no more at this.
With reference to Fig. 3, Fig. 3 is the flow chart of method second embodiment of a kind of vision protection of the present invention.As shown in Figure 3, after face that discerns spectators or eye feature, also comprise:
Step S11 stores the spectators face or the eye feature of said identification; Position induction device also comprises image acquiring device; Each spectators is unique; Its face or eye feature all are unique; After infrared inductor identification spectators face or eye feature, drive this image acquiring device work, carry out the action of taking spectators face or eye feature and storing this spectators face or eye feature.This image acquiring device can be arbitrary money video camera.
Step S12 writes down the face of said storage or eye feature spectators' first duration of watching TV; The purpose that write down for first duration is to prevent that spectators from watching TV program time long.The timer that those skilled in the art knew can be realized this function.
Step S13, when said first duration surpassed the first threshold of setting, it was long with prompting spectators viewing time to produce second alerting signal, and the spectators that surpass first threshold until said first duration frame out.First threshold is to use under the condition of eye in the science that meets to confirm the maximum duration that continues to watch TV programme that spectators are allowed at every turn.Second alerting signal is one or more in voice signal, picture signal, letter signal, light signal and the screen display luminance signal; As image or captions or Flash, the linearity of reporting the long spectators of the long voice messaging of viewing time, screen display viewing time turn down one or more modes such as screen display brightness remind spectators' science healthy watch TV programme, prevent because of watching TV programme eyesight descend concurrent headache, dizziness, symptom such as puckery for a long time.Second prompting message continues demonstration and frames out until the long spectators of determined viewing time.
With reference to Fig. 4, Fig. 4 is the flow chart of method the 3rd embodiment of vision protection of the present invention.As shown in Figure 4, at step S12, also comprise after writing down first duration of watching TV of face or eye feature spectators of said storage:
Step S21 when the face or the eye feature spectators of said storage are not identified then, judges that said spectators leave; When position sensor is responded to less than the spectators face of certain storage or eye feature, just judge that these spectators leave.
Step S22 writes down second duration that said spectators leave; After judging that these spectators leave, writing down second duration that these spectators leave is to consider that in watching the process of TV programme, spectators possibly do of short duration leaving, and during first duration, just can take two kinds of clocking schemes in trailer record like this.First kind is to judge that spectators leave afterwards just with the zero clearing of first duration; Second kind is the scheme of describing in the present embodiment, judge that promptly spectators leave after, in order to protect the eyesight of doing the of short duration spectators that leave, write down second duration that these spectators leave, like step S23.
Step S23, during second threshold value of surpass setting when said second duration, the said spectators' of zero clearing first duration, and remove said spectators' face or eye feature record.Second threshold value is and pairing threshold value of first duration, and first duration and second threshold value are linear relationships one to one, promptly first duration long more, the second corresponding threshold value is big more; First duration is short more, and the second corresponding threshold value is more little.First duration of zero clearing, and spectators face or the eye feature record of removing this storage is the longest in order to guarantee the time that these spectators can be allowed to continue to watch when watching TV programme next time.When second duration during, on the basis of first duration, continue timing less than second threshold value.Clearly second kind of scheme than first kind of scheme more science, more precisely, more help protecting spectators' eyesight, be second kind of scheme so present embodiment adopts.
With reference to Fig. 5, Fig. 5 is the flow chart of method the 4th embodiment of vision protection of the present invention.As shown in Figure 5, at step S13, during first threshold that surpass to set when said first duration, it is long with prompting spectators viewing time to produce second alerting signal, also comprises after the spectators that surpass first threshold until said first duration frame out:
Step S31 writes down the 3rd duration that said spectators leave; After the spectators that surpass first threshold in first duration frame out; Write down the 3rd duration that these spectators leave; Be in order to guarantee that these spectators can obtain enough rests through after watching for a long time; Watch TV programme before avoiding the spectators of this storage after enough not had a rest, to get back to screen again,, spectators are exercised supervision from the angle of science with eye.
Step S32 when said the 3rd duration during more than or equal to the 3rd threshold value set, removes the spectators' of this storage face or eye feature record; The 3rd threshold value is the threshold value of corresponding first duration, i.e. the maximum of second threshold value.When the spectators that frame out obtained enough rests, when promptly the 3rd duration was more than or equal to the 3rd threshold value set, when these spectators watched TV programme once more, screen normally showed.In order to guarantee that screen normally shows the spectators of this storage, so, remove these spectators' face or eye feature record when the 3rd duration during more than or equal to the 3rd threshold value.
Step S33, when said the 3rd duration less than the 3rd threshold value, and said spectators are when watching once more, it is too short with prompting spectators' time of having a rest to produce the 3rd alerting signal, frames out until said spectators.When the 3rd duration less than the 3rd threshold value; Show that promptly this spectators' time of having a rest is not enough; For spectators' health, the supervision spectators scientifically watch TV programme, when these spectators watch once more; Produce the 3rd alerting signal, the 3rd alerting signal is one or more in voice signal, picture signal, letter signal, light signal and the screen display luminance signal.As image or captions or Flash, the linearity of reporting the too short spectators of too short voice messaging of time of having a rest, screen display time of having a rest turn down one or more modes such as screen display brightness remind spectators' science healthy watch TV programme, prevent to be watched TV programme eyesight descend concurrent headache, dizziness, symptom such as puckery because of having a rest fully.The 3rd alerting signal continues demonstration and frames out once more until too short spectators of determined time of having a rest.
With reference to Fig. 6, Fig. 6 is the flow chart of method the 5th embodiment of a kind of vision protection of the present invention.As shown in Figure 6, at step S03, when said viewing distance during less than preset value, it is too small with prompting spectators viewing distance to produce first prompting message, until said spectators move to the preset value zone outside, also comprises afterwards:
Step S41, the brightness of gathering surround lighting;
Step S42 according to the brightness of the surround lighting of gathering, regulates the colour temperature of screen display.
Known like those skilled in the art institute, photosensitive circuit is all arranged, like photoelectric coupled devices such as photo resistance, through the brightness of photo resistance induced environment light in the image acquiring device in the position induction device.As when the brightness of surround lighting is very weak, it is big that the resistance of photo resistance becomes, and makes the corresponding colour temperature of screen display through drive circuit.As everyone knows; Daytime and evening, extraneous light is different, shows corresponding screen display color according to different light needs adjustment; Suitable screen display color can let spectators' eyes in the process of watching be not easy fatigue; Can effectively protect eyes, can also protect screen simultaneously, prolong the life-span of screen.
The method of vision protection of the present invention not only is used for television set, can be used for any in the influential electronic equipment of eyesight, particularly in the products such as computer of existing camera itself.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. the method for a vision protection is characterized in that, may further comprise the steps:
The Preset Time section detects once nearest apart from screen spectators in each time period, obtain said spectators' viewing distance;
Judge that whether said viewing distance is less than preset value;
When said viewing distance during less than preset value, it is too small with prompting spectators viewing distance to produce first prompting message, outside said spectators move to the preset value zone.
2. method according to claim 1 is characterized in that, in said Preset Time section, detects once nearest apart from screen spectators in each time period, and the viewing distance that obtains said spectators also comprises before: accept spectators and select to get into the sight protectio pattern.
3. method according to claim 1 and 2 is characterized in that, said Preset Time section detects once nearest apart from screen spectators in each time period, and the concrete steps of obtaining said spectators' viewing distance are:
The Preset Time section, a spectators' of identification face or eye feature lock the spectators nearest apart from screen in each time period;
Measure said spectators' face or the distance between eye feature and the screen, obtain viewing distance.
4. method according to claim 3 is characterized in that, after face that discerns spectators or eye feature, also comprises:
Store the spectators face or the eye feature of said identification;
Write down the face of said storage or eye feature spectators' first duration of watching TV;
When said first duration surpassed the first threshold of setting, it was long with prompting spectators viewing time to produce second alerting signal, and the spectators that surpass first threshold until said first duration frame out.
5. method according to claim 4 is characterized in that, after the face of the said storage of said record or eye feature spectators' first duration of watching TV, also comprises:
When the face or the eye feature spectators of said storage are not identified then, judge that said spectators leave;
Write down second duration that said spectators leave;
During second threshold value that surpass to set when said second duration, the said spectators' of zero clearing first duration, and remove said spectators' face or eye feature record.
6. method according to claim 4; It is characterized in that; When the first threshold of surpass setting when said first duration, it is long with prompting spectators viewing time to produce second alerting signal, also comprises after the spectators that surpass first threshold until said first duration frame out:
Write down the 3rd duration that said spectators leave;
When said the 3rd duration during, remove the spectators' of this storage face or eye feature record more than or equal to the 3rd threshold value set;
When said the 3rd duration less than the 3rd threshold value, and said spectators are when watching once more, it is too short with prompting spectators' time of having a rest to produce the 3rd alerting signal, frames out until said spectators.
7. method according to claim 6; It is characterized in that said first alerting signal, said second alerting signal and said the 3rd alerting signal are one or more in voice signal, picture signal, letter signal, light signal and the screen display luminance signal.
8. method according to claim 1 and 2 is characterized in that said preset value obtains according to screen size.
9. method according to claim 1 and 2 is characterized in that, when said viewing distance during less than preset value, it is too small with prompting spectators viewing distance to produce first prompting message, until said spectators move to the preset value zone outside, also comprises afterwards:
Gather the brightness of surround lighting;
According to the brightness of the surround lighting of gathering, regulate the colour temperature of screen display.
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| CN2011104260080A CN102510457A (en) | 2011-12-16 | 2011-12-16 | Method for protecting eyesight |
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| CN2011104260080A CN102510457A (en) | 2011-12-16 | 2011-12-16 | Method for protecting eyesight |
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