CN103927857A - Method and device preventing short-distance watching - Google Patents
Method and device preventing short-distance watching Download PDFInfo
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- CN103927857A CN103927857A CN201410134009.1A CN201410134009A CN103927857A CN 103927857 A CN103927857 A CN 103927857A CN 201410134009 A CN201410134009 A CN 201410134009A CN 103927857 A CN103927857 A CN 103927857A
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Abstract
The invention is suitable for the technical field of visible electronic equipment, and provides a method and device preventing short-distance watching. The method comprises the steps that whether somebody watches is judged through an infrared human body sensor; if somebody watches, an ultrasonic sensor obtains the distance between the person and a display screen; if the distance is smaller than a preset control distance, a timer is started and begins timing, and whether the period of first timing exceeds a first time period is judged; if the period of first timing exceeds the first time period, a buzzer is triggered to give an alarm preventing short-distance watching. According to the method and device, the infrared human body sensor and the ultrasonic sensor are combined to carry out location and distance measurement on people watching TV and judge whether people watch TV in a short distance, and an alarm sound can warn people about the behavior of watching TV in a short distance.
Description
Technical field
The invention belongs to visible electronic equipment technical field, relate in particular to a kind of method and device of closely watching of preventing.
Background technology
At present; televisor has been popularized and has been become one of entertainment selection important in people life; but; there is child's family necessarily to have such worry: child sees that TV is excessively difficult to control; even some is addicted; do not fly into a rage etc. to just seeing; in addition; child is because curiosity is often understood close-range TV view; the hidden danger that existence affects one's power of vision; this head of a family is usually informed not or strictly control child by doctor, accompany in real time child left and right because the head of a family is impossible, prevent from closely watching being difficult to artificially realize.Existingly prevented that the method for closely watching from being to utilize human body infrared inductor to identify for human body infrared wavelength, but the Accurate Determining of cannot adjusting the distance.
In sum, existingly prevented that the method for closely watching was difficult to prevent from closely watching for a long time.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of closely watching of preventing, is intended to solve existingly prevented that the method for closely watching was difficult to prevent the problem of closely watching for a long time.
On the one hand, provide a kind of method of closely watching of preventing, described method comprises:
Judge whether that by infrared human body inductor someone watches;
If someone watches, obtain the distance of people and display screen by ultrasonic sensing device;
If described distance is less than default control distance, starts timer and start timing and judge whether the first timing exceedes the first duration;
If the first timing exceedes the first duration, trigger hummer and carry out alarm and closely watch preventing.
On the other hand, provide a kind of device of closely watching of preventing, described device comprises:
The first judging unit, for judging whether that by infrared human body inductor someone watches;
Distance acquiring unit, if for there being people to watch, obtain the distance of people and display screen by ultrasonic sensing device;
The second judging unit, if be less than default control distance for described distance, start timer and starts timing and judge whether the first timing exceedes the first duration;
The first prevention unit, if exceed the first duration for the first timing, triggers hummer and carries out alarm and closely watch preventing.
In the embodiment of the present invention, judge whether that by infrared human body inductor someone watches; If someone watches, obtain the distance of people and display screen by ultrasonic sensing device; If described distance is less than default control distance, starts timer and start timing and judge whether the first timing exceedes the first duration; If the first timing exceedes the first duration, triggering hummer carries out alarm and closely watches preventing, the present invention, person locates and spacing to watching TV to adopt infrared human body inductor and the combination of ultrasonic sensing device, to judge whether beholder excessively closely watches TV, for excessively closely watching TV behavior to propose audio warning.
Brief description of the drawings
Fig. 1 is the realization flow figure that prevented the method for closely watching that the embodiment of the present invention one provides;
Fig. 2 is the concrete structure block diagram that prevented the device of closely watching that the embodiment of the present invention two provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In embodiments of the present invention, judge whether that by infrared human body inductor someone watches; If someone watches, obtain the distance of people and display screen by ultrasonic sensing device; If described distance is less than default control distance, starts timer and start timing and judge whether the first timing exceedes the first duration; If the first timing exceedes the first duration, trigger hummer and carry out alarm and closely watch preventing.
Below in conjunction with specific embodiment, realization of the present invention is described in detail:
Embodiment mono-
Fig. 1 shows the realization flow that prevented the method for closely watching that the embodiment of the present invention one provides, and details are as follows:
It should be noted that, the present invention is particularly useful for possessing infrared human body inductor, in the electric terminal of ultrasonic sensing device, display screen, timer and hummer, described electric terminal is concrete as televisor, panel computer, below taking televisor as description object, illustrate the present invention, TV set processor, described processor can be super low-power consumption master control micro-control unit (Micro Control Unit, MCU).
In step S101, judge whether that by infrared human body inductor someone watches.
In the present embodiment, described infrared human body inductor is arranged at the centre position of the upper and lower frame of televisor.Televisor judges taking infrared human body inductor as the center of circle whether have people watching the program of playing on televisor in the region that is radius at the distance of reaction of infrared human body inductor by infrared human body inductor.As a preferred version be, if nobody watches, start timer and start timing and judge whether the first timing exceedes the first duration, reaches after certain hour in timing, as 10 minutes, automatic shutdown avoided leaving the waste of forgetting the generation that switches off the TV temporarily.
In step S102, if there is people to watch, obtain the distance of people and display screen by ultrasonic sensing device.
In the present embodiment, described ultrasonic sensing device is also arranged at the centre position of the upper and lower frame of televisor.Televisor obtains the distance of people and display screen by ultrasonic sensing device, if described distance is less than default control distance, perform step S103, otherwise, execution step S101.
In step S103, if described distance is less than default control distance, starts timer and start timing and judge whether the first timing exceedes the first duration.
In the present embodiment, the needs that described default control distance is systemic presupposition are controlled beholder's distance.Preferably, described default control distance is 1.5m.If the first timing exceedes the first duration, perform step S104, effectively prevent from seeing TV in the positive 1.5M of TV, especially children, to reduce because excessively closely seeing that television surface causes visually impaired possibility, otherwise, execution step S101
In step S104, if the first timing exceedes the first duration, trigger hummer and carry out alarm and closely watch preventing.
In the present embodiment, described the first timing is that timer is less than the lasting duration of default control distance with the distance of display screen first people.Described the first duration is that systemic presupposition can allow people to be less than first the duration of default control distance with the distance of display screen.Preferred described the first duration is 15s.If the first timing exceedes 15s, the triggering hummer of televisor carries out alarm closely to be watched preventing.Combined with ultrasonic ranging by infrared human body induction, can identify and get rid of the interference of furniture, pet, can accurately reserve distance, and send in time prompting simultaneously.
As a preferred version, after step S104, described method can also comprise:
The second timing exceedes the second duration, if described distance is also less than described default control distance, stops current playing program, plays full frame picture or shutdown and preserves current playing program.
In the present embodiment, described full frame picture is the default picture that contributing in televisor regulates eyesight that is kept at.If warned default control distance can only people, the distance of this people and display screen also default control apart within, can stop current playing program, play full frame picture or shutdown and preserve current playing program.Carry out alarm and closely watch preventing triggering hummer, and after playing full frame picture or shutdown and preserving current playing program, timer resets so that next timing.
As another one preferred version, described in stop current playing program, play after full frame picture and also comprise:
If described distance is greater than described default control distance, described full frame picture is minimized, recover current playing program described in normal play.
In the present embodiment, stopping current playing program, after playing full frame picture, the distance of this people and display screen, within default control distance, does not minimize described full frame picture, current playing program described in recovery normal play.
The present embodiment, person locates and spacing to watching TV can to reach employing infrared human body inductor and the combination of ultrasonic sensing device, to judge whether beholder excessively closely watches TV, for excessively closely watching TV behavior to propose audio warning, further cut off TV set power, reach with this bad behavior of avoiding closely watching TV.
Embodiment bis-
Fig. 2 shows the concrete structure block diagram that prevented the device of closely watching that the embodiment of the present invention two provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.In the present embodiment, this prevented that the device of closely watching from comprising: unit 26 and timing reset unit 27 are watched in the first judging unit 21, distance acquiring unit 22, the second judging unit 23, the first prevention unit 24, the second prevention unit 25, recovery.
Wherein, the first judging unit 21, for judging whether that by infrared human body inductor someone watches;
Distance acquiring unit 22, if for there being people to watch, obtain the distance of people and display screen by ultrasonic sensing device;
The second judging unit 23, if be less than default control distance for described distance, start timer and starts timing and judge whether the first timing exceedes the first duration;
The first prevention unit 24, if exceed the first duration for the first timing, triggers hummer and carries out alarm and closely watch preventing.
Further, described device also comprises:
The second prevention unit 25, exceedes the second duration for the second timing, if described distance is also less than described default control distance, stops current playing program, plays full frame picture or shutdown and preserves current playing program.
The present embodiment, person locates and spacing to watching TV can to reach employing infrared human body inductor and the combination of ultrasonic sensing device, to judge whether beholder excessively closely watches TV, for excessively closely watching TV behavior to propose audio warning, further cut off TV set power, reach with this bad behavior of avoiding closely watching TV.
Further, described device also comprises:
Unit 26 is watched in recovery, if be greater than described default control distance for described distance, described full frame picture is minimized, and recovers current playing program described in normal play.
Further, described device also comprises:
Timing reset unit 27, resets so that next timing for timer.
Preferably, described default control distance is 1.5m.
What the embodiment of the present invention provided prevented that the device of closely watching can be applied in the embodiment of the method one of aforementioned correspondence, and details, referring to the description of above-described embodiment one, do not repeat them here.
It should be noted that in said system embodiment, included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit also, just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition, one of ordinary skill in the art will appreciate that all or part of step realizing in the various embodiments described above method is can carry out the hardware that instruction is relevant by program to complete, corresponding program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. prevented a method of closely watching, and it is characterized in that, described method comprises:
Judge whether that by infrared human body inductor someone watches;
If someone watches, obtain the distance of people and display screen by ultrasonic sensing device;
If described distance is less than default control distance, starts timer and start timing and judge whether the first timing exceedes the first duration;
If the first timing exceedes the first duration, trigger hummer and carry out alarm and closely watch preventing.
2. the method for claim 1, is characterized in that, described triggering hummer carries out alarm and also comprised afterwards to prevent from closely watching:
The second timing exceedes the second duration, if described distance is also less than described default control distance, stops current playing program, plays full frame picture or shutdown and preserves current playing program.
3. the method for claim 1, is characterized in that, if described the first timing exceedes the first duration, triggers hummer and carries out alarm and closely also watch and comprising preventing:
Timer resets so that next timing.
4. method as claimed in claim 2, is characterized in that, described in stop current playing program, play after full frame picture and also comprise:
If described distance is greater than described default control distance, described full frame picture is minimized, recover current playing program described in normal play.
5. as the method for claims 1,2,3 or 4, it is characterized in that, described default control distance is 1.5m.
6. prevented a device of closely watching, and it is characterized in that, described device comprises:
The first judging unit, for judging whether that by infrared human body inductor someone watches;
Distance acquiring unit, if for there being people to watch, obtain the distance of people and display screen by ultrasonic sensing device;
The second judging unit, if be less than default control distance for described distance, start timer and starts timing and judge whether the first timing exceedes the first duration;
The first prevention unit, if exceed the first duration for the first timing, triggers hummer and carries out alarm and closely watch preventing.
7. device as claimed in claim 6, is characterized in that, described device also comprises:
The second prevention unit, exceedes the second duration for the second timing, if described distance is also less than described default control distance, stops current playing program, plays full frame picture or shutdown and preserves current playing program.
8. device as claimed in claim 6, is characterized in that, described device also comprises:
Timing reset unit, resets so that next timing for timer.
9. device as claimed in claim 7, is characterized in that, described device also comprises:
Unit is watched in recovery, if be greater than described default control distance for described distance, described full frame picture is minimized, and recovers current playing program described in normal play.
10. as the device of claims 6,7,8 or 9, it is characterized in that, described default control distance is 1.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134009.1A CN103927857A (en) | 2014-04-03 | 2014-04-03 | Method and device preventing short-distance watching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134009.1A CN103927857A (en) | 2014-04-03 | 2014-04-03 | Method and device preventing short-distance watching |
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| CN103927857A true CN103927857A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410134009.1A Pending CN103927857A (en) | 2014-04-03 | 2014-04-03 | Method and device preventing short-distance watching |
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Cited By (7)
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| CN104390661A (en) * | 2014-11-21 | 2015-03-04 | 浙江工业职业技术学院 | FPGA (Field Programmable Gate Array) based angle and distance reminding device |
| CN105491311A (en) * | 2014-09-18 | 2016-04-13 | 汕头市奥斯卡网络科技有限公司 | Intelligent television myopia prevention device |
| CN105761453A (en) * | 2016-03-14 | 2016-07-13 | 汕头市奥斯卡网络科技有限公司 | Electronic device avoiding watching television at close range |
| WO2017215007A1 (en) * | 2016-06-18 | 2017-12-21 | 武克易 | Smart television content-playing method and device capable of detecting viewing state |
| CN107844237A (en) * | 2017-11-13 | 2018-03-27 | 珠海格力电器股份有限公司 | Beholder watches analysis method, device and equipment and reminding method and device |
| CN108012172A (en) * | 2017-12-20 | 2018-05-08 | 深圳市创行智能科技有限公司 | The intelligent-induction control method and intelligent-induction box of a kind of display terminal |
| WO2021104078A1 (en) * | 2019-11-26 | 2021-06-03 | 华为技术有限公司 | Electronic device and method for controlling display screen thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105491311A (en) * | 2014-09-18 | 2016-04-13 | 汕头市奥斯卡网络科技有限公司 | Intelligent television myopia prevention device |
| CN104390661A (en) * | 2014-11-21 | 2015-03-04 | 浙江工业职业技术学院 | FPGA (Field Programmable Gate Array) based angle and distance reminding device |
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| WO2021104078A1 (en) * | 2019-11-26 | 2021-06-03 | 华为技术有限公司 | Electronic device and method for controlling display screen thereof |
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Application publication date: 20140716 |