CN105042399A - Image-analysis-based desk lamp brightness self-adaptive adjustment method - Google Patents
Image-analysis-based desk lamp brightness self-adaptive adjustment method Download PDFInfo
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- CN105042399A CN105042399A CN201510458450.XA CN201510458450A CN105042399A CN 105042399 A CN105042399 A CN 105042399A CN 201510458450 A CN201510458450 A CN 201510458450A CN 105042399 A CN105042399 A CN 105042399A
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- desk lamp
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an image-analysis-based desk lamp brightness self-adaptive adjustment method. A camera is arranged on the edge of a lampshade of a desk lamp; the camera is used for shooting a comparison image of a light area and a non-light area of the desk lamp; and a photosensitive sensor is arranged on the outer wall of the lampshade of the desk lamp. After the brightness of the environment where the desk lamp is located is obtained, a brightness difference value of the light area and the non-light area of the desk lamp in the comparison image is worked out; then according to the brightness difference value and the brightness of the environment where the desk lamp is located, the brightness of the current light area of the desk lamp is worked out; and the brightness of the current light area of the desk lamp is adjusted according to a preset brightness threshold value. The image-analysis-based desk lamp brightness self-adaptive adjustment method is simple in design, convenient to use, and capable of self-adaptively adjusting light according to the light intensity of the environment and the focusing degree of the desk lamp, so that human eyes are always in the most comfortable state and shortsightedness caused by damage to the eyes is avoided.
Description
Technical field
The present invention relates to desk lamp, particularly relate to a kind of desk lamp brightness adaptive regulation method based on graphical analysis.
Background technology
Desk lamp is the one of lamp, and this electrical equipment is mainly placed on desk or dining table, for the use of illumination, is moveable lamps and lanterns.The bright range of exposures of desk lamp is relatively little and concentrated, thus can not have influence on the light in whole room, and effect is confined to around desk lamp, is convenient to read, learn, and saves the energy.
Desk lamp, has according to using function classification and reads desk lamp and decoration table lamp.
The lamp body profile of reading desk lamp is succinctly light, and refer to the desk lamp being used for seeing written word specially, this desk lamp generally can adjust the height of lamp stand, the direction of illumination and brightness, and mainly throw light on read function.
Decoration table lamp outward appearance is luxurious, material and a great variety of models, and lamp body structure is complicated, for interspersing Space, decoration functions and illumination functions of equal importance, the desk lamp in room has surmounted the value of desk lamp itself far away, and desk lamp has become a rare art work.With light packs repair the theory of refitting decorations under, the decoration functions of desk lamp is also just more obvious.
What kind of role does lamp decoration play in life staying idle at home? in night, light is smart, is the construction expert of warm atmosphere.Through shadow level, allow the richer vitality in space; On daytime, light fixture turns to the decorative art in room, it be dotted with together with furniture, cloth art, ornament life beauty, lamp plays very important role in room space.
Existing desk lamp, general is all manual adjustments brightness, because the light intensity of external environment can change, then do not change after the brightness of desk lamp is set, so, the light intensity of desk lamp may become too strong along with the change of external environment light intensity or excessively weak, thus harms one's eyes, and easily causes adolescent myopia.
Patent " a kind of brightness adjustable self adaptation desk lamp " (application number: 201520043595.9 applyings date: 2015-01-21) discloses the adjustable self adaptation desk lamp of a kind of brightness, comprises luminous intensity detection module, lighting module, micro controller module, keyboard input module, luminance adjustment module and power module; Described luminous intensity detection module, lighting module, keyboard input module and luminance adjustment module are connected on the corresponding port of micro controller module; Described luminous intensity detection module is used for the power of real-time testing environment light, described keyboard input module is used for presetting light intensity parameter threshold value, described luminance adjustment module is used for according to the analysis result of micro-control module and then regulates brightness, and described power module is used for providing electric energy needed for luminous intensity detection module, lighting module, micro controller module, keyboard input module and luminance adjustment module; Described luminous intensity detection module comprise connect successively photo resistance, voltage comparator, potentiometer.Its structure is simple and can environmentally Automatic adjusument desk lamp brightness, effectively protects the eyes of user.
Above-mentioned patent also can the brightness of self-adaptative adjustment desk lamp, but its based on be external environment brightness, do not consider the illuminating position of desk lamp itself: because desk lamp is all generally manually to adjust the direction of illumination of lamp pearl and irradiation distance, therefore, the brightness of desk lamp field of illumination is along with the direction of illumination of lamp pearl and irradiation distance change, if field of illumination is little, can uprise undoubtedly time so brightness is large relative to field of illumination.Because everyone uses the custom of desk lamp different, it is near that someone likes desk lamp to put, someone likes far away, someone likes lampshade lower, someone likes lampshade higher, so the brightness value of desk lamp originally in field of illumination is indefinite, the brightness value of external environment is only relied on to be inadequate to adjust the brightness of desk lamp.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, provides a kind of desk lamp brightness adaptive regulation method based on graphical analysis.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Based on the desk lamp brightness adaptive regulation method of graphical analysis, comprise following steps:
Step 1), arranges camera at table lamp lampshade edge, for taking the contrast images of described desk lamp field of illumination and non-illumination region, and arranges light sensor on table lamp lampshade outer wall;
Step 2), according to the induction result of light sensor, obtain the brightness of environment residing for desk lamp;
Step 3), obtains the contrast images in desk lamp field of illumination and non-illumination region;
Step 4), analyzes contrast images, obtains the average brightness in wherein field of illumination and non-illumination region respectively;
Step 5), deducts the average brightness in non-illumination region by the average brightness of field of illumination in contrast photo, obtains difference between the two;
Step 6), is added the difference obtained in step 5) with the brightness of environment residing for desk lamp, obtains the brightness value of current desk lamp field of illumination;
Step 7), compares the brightness value of current desk lamp field of illumination and the luminance threshold preset;
Step 7.1), if the brightness value of current desk lamp field of illumination is less than default luminance threshold, and the absolute value of difference is greater than default luminance errors threshold value between the two, then increase the brightness of illumination of desk lamp, until the absolute value of difference is less than or equal to default luminance errors threshold value between the brightness value of current desk lamp field of illumination and default luminance threshold;
Step 7.2), if the brightness value of current desk lamp field of illumination is greater than default luminance threshold, and the absolute value of difference is greater than default luminance errors threshold value between the two, then weaken the brightness of illumination of desk lamp, until the absolute value of difference is less than or equal to default luminance errors threshold value between the brightness value of current desk lamp field of illumination and default luminance threshold.
As the further prioritization scheme of desk lamp brightness adaptive regulation method that the present invention is based on graphical analysis, described camera adopts pinhole cameras.
As the further prioritization scheme of desk lamp brightness adaptive regulation method that the present invention is based on graphical analysis, the model of described pinhole cameras is AST-WLQ7C.
As the further prioritization scheme of desk lamp brightness adaptive regulation method that the present invention is based on graphical analysis, the scope of described default luminance threshold is that 120 nits are to 150 nits.
As the further prioritization scheme of desk lamp brightness adaptive regulation method that the present invention is based on graphical analysis, described default luminance threshold is 130 nits.
As the further prioritization scheme of desk lamp brightness adaptive regulation method that the present invention is based on graphical analysis, the model of described light sensor is BH1750FVI.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. simplicity of design, easy to use;
2. can the focus level Automatic adjusument light of environmentally light intensity and desk lamp itself, make human eye be in the state of the most comfortable all the time, avoid the myopia that eye damage is caused.
Detailed description of the invention
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of desk lamp brightness adaptive regulation method based on graphical analysis, comprise following steps:
Step 1), arranges camera at table lamp lampshade edge, for taking the contrast images of described desk lamp field of illumination and non-illumination region, and arranges light sensor on table lamp lampshade outer wall;
Step 2), according to the induction result of light sensor, obtain the brightness of environment residing for desk lamp;
Step 3), obtains the contrast images in desk lamp field of illumination and non-illumination region;
Step 4), analyzes contrast images, obtains the average brightness in wherein field of illumination and non-illumination region respectively;
Step 5), deducts the average brightness in non-illumination region by the average brightness of field of illumination in contrast photo, obtains difference between the two;
Step 6), is added the difference obtained in step 5) with the brightness of environment residing for desk lamp, obtains the brightness value of current desk lamp field of illumination;
Step 7), compares the brightness value of current desk lamp field of illumination and the luminance threshold preset;
Step 7.1), if the brightness value of current desk lamp field of illumination is less than default luminance threshold, and the absolute value of difference is greater than default luminance errors threshold value between the two, then increase the brightness of illumination of desk lamp, until the absolute value of difference is less than or equal to default luminance errors threshold value between the brightness value of current desk lamp field of illumination and default luminance threshold;
Step 7.2), if the brightness value of current desk lamp field of illumination is greater than default luminance threshold, and the absolute value of difference is greater than default luminance errors threshold value between the two, then weaken the brightness of illumination of desk lamp, until the absolute value of difference is less than or equal to default luminance errors threshold value between the brightness value of current desk lamp field of illumination and default luminance threshold.
Described camera adopts pinhole cameras, and model is AST-WLQ7C.
The scope of described default luminance threshold be 120 nits to 150 nits, be preferably 130 nits.
The model of described light sensor is BH1750FVI.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1., based on the desk lamp brightness adaptive regulation method of graphical analysis, it is characterized in that, comprise following steps:
Step 1), arranges camera at table lamp lampshade edge, for taking the contrast images of described desk lamp field of illumination and non-illumination region, and arranges light sensor on table lamp lampshade outer wall;
Step 2), according to the induction result of light sensor, obtain the brightness of environment residing for desk lamp;
Step 3), obtains the contrast images in desk lamp field of illumination and non-illumination region;
Step 4), analyzes contrast images, obtains the average brightness in wherein field of illumination and non-illumination region respectively;
Step 5), deducts the average brightness in non-illumination region by the average brightness of field of illumination in contrast photo, obtains difference between the two;
Step 6), is added the difference obtained in step 5) with the brightness of environment residing for desk lamp, obtains the brightness value of current desk lamp field of illumination;
Step 7), compares the brightness value of current desk lamp field of illumination and the luminance threshold preset;
Step 7.1), if the brightness value of current desk lamp field of illumination is less than default luminance threshold, and the absolute value of difference is greater than default luminance errors threshold value between the two, then increase the brightness of illumination of desk lamp, until the absolute value of difference is less than or equal to default luminance errors threshold value between the brightness value of current desk lamp field of illumination and default luminance threshold;
Step 7.2), if the brightness value of current desk lamp field of illumination is greater than default luminance threshold, and the absolute value of difference is greater than default luminance errors threshold value between the two, then weaken the brightness of illumination of desk lamp, until the absolute value of difference is less than or equal to default luminance errors threshold value between the brightness value of current desk lamp field of illumination and default luminance threshold.
2. the desk lamp brightness adaptive regulation method based on graphical analysis according to claim 1, is characterized in that, described camera adopts pinhole cameras.
3. the desk lamp brightness adaptive regulation method based on graphical analysis according to claim 2, is characterized in that, the model of described pinhole cameras is AST-WLQ7C.
4. the desk lamp brightness adaptive regulation method based on graphical analysis according to claim 1, is characterized in that, the scope of described default luminance threshold is that 120 nits are to 150 nits.
5. the desk lamp brightness adaptive regulation method based on graphical analysis according to claim 4, it is characterized in that, described default luminance threshold is 130 nits.
6. the desk lamp brightness adaptive regulation method based on graphical analysis according to claim 1, is characterized in that, the model of described light sensor is BH1750FVI.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627183A (en) * | 2015-12-26 | 2016-06-01 | 北海鸿旺电子科技有限公司 | Table lamp with automatic irradiation angle adjusting function |
| CN106016138A (en) * | 2016-06-18 | 2016-10-12 | 中山市联润五金机械有限公司 | Multifunctional intelligent desk lamp |
| CN107493640A (en) * | 2017-08-21 | 2017-12-19 | 上海肇观电子科技有限公司 | A kind of method and apparatus to destination object prompt message |
| CN107995433A (en) * | 2017-11-07 | 2018-05-04 | 佛山市云米电器科技有限公司 | light auxiliary system and method |
| CN108882488A (en) * | 2018-09-12 | 2018-11-23 | 青岛亿联客信息技术有限公司 | Read and write automatic light control system |
| CN109743825A (en) * | 2019-03-12 | 2019-05-10 | 深圳市沃特沃德股份有限公司 | Light adjusting method, device, storage medium and intelligent arrangement for reading |
| CN109915776A (en) * | 2017-12-12 | 2019-06-21 | 天津华彩信和电子科技集团股份有限公司 | The detection system and detection method of a kind of pavement of road average brightness and average illumination |
| CN109958979A (en) * | 2018-11-01 | 2019-07-02 | 永康市道可道科技有限公司 | Lamps and lanterns electronic switch control mechanism |
| CN110267408A (en) * | 2019-04-24 | 2019-09-20 | 薄涛 | Curtain brightness adjusting method, device, system and storage medium |
| CN114126135A (en) * | 2021-12-23 | 2022-03-01 | 深圳市迈捷物联光电有限公司 | Intelligent interaction system for lamplight video pictures, intelligent interaction control method for lamplight video pictures and television |
| CN114698180A (en) * | 2022-03-29 | 2022-07-01 | 武汉宜捷诚数码科技有限公司 | LED power supply dimming control method and system based on multidimensional data analysis and computer storage medium |
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| CN106016138A (en) * | 2016-06-18 | 2016-10-12 | 中山市联润五金机械有限公司 | Multifunctional intelligent desk lamp |
| CN107493640B (en) * | 2017-08-21 | 2019-07-05 | 上海肇观电子科技有限公司 | A kind of method and apparatus to target object prompt information |
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| CN109915776A (en) * | 2017-12-12 | 2019-06-21 | 天津华彩信和电子科技集团股份有限公司 | The detection system and detection method of a kind of pavement of road average brightness and average illumination |
| CN108882488A (en) * | 2018-09-12 | 2018-11-23 | 青岛亿联客信息技术有限公司 | Read and write automatic light control system |
| CN108882488B (en) * | 2018-09-12 | 2020-09-01 | 青岛亿联客信息技术有限公司 | Automatic light-adjusting system for reading and writing |
| CN109958979A (en) * | 2018-11-01 | 2019-07-02 | 永康市道可道科技有限公司 | Lamps and lanterns electronic switch control mechanism |
| CN109958979B (en) * | 2018-11-01 | 2020-09-18 | 浙江勤奋建设有限公司 | Electronic switch control mechanism of lamp |
| CN109743825A (en) * | 2019-03-12 | 2019-05-10 | 深圳市沃特沃德股份有限公司 | Light adjusting method, device, storage medium and intelligent arrangement for reading |
| CN110267408A (en) * | 2019-04-24 | 2019-09-20 | 薄涛 | Curtain brightness adjusting method, device, system and storage medium |
| CN114126135A (en) * | 2021-12-23 | 2022-03-01 | 深圳市迈捷物联光电有限公司 | Intelligent interaction system for lamplight video pictures, intelligent interaction control method for lamplight video pictures and television |
| CN114698180A (en) * | 2022-03-29 | 2022-07-01 | 武汉宜捷诚数码科技有限公司 | LED power supply dimming control method and system based on multidimensional data analysis and computer storage medium |
| CN114698180B (en) * | 2022-03-29 | 2023-05-09 | 江门市想天照明科技有限公司 | LED power supply dimming control method, system and computer storage medium based on multidimensional data analysis |
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Application publication date: 20151111 |