CN112839414A - Lighting device and control method thereof - Google Patents
Lighting device and control method thereof Download PDFInfo
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- CN112839414A CN112839414A CN202110200663.8A CN202110200663A CN112839414A CN 112839414 A CN112839414 A CN 112839414A CN 202110200663 A CN202110200663 A CN 202110200663A CN 112839414 A CN112839414 A CN 112839414A
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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
- H05B47/105—Controlling the light source in response to determined parameters
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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
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a lighting device and a control method thereof. According to the invention, the coordinate data of the working face area is read and written through sight tracking, and the brightness and the color temperature of the eye protection light source are controlled and adjusted in combination with the environment brightness and color temperature monitoring, so that the light position, the color temperature and the brightness are adjusted simultaneously, the eye protection requirement is fully met, and the defects that the desk lamp in the prior art is unreasonable in design, generally lacks of an intelligent eye protection function, cannot fully meet the eye protection requirement and the like are overcome.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to an illumination device and a control method thereof.
Background
With the development of modern science and technology civilization, the pace of work and life is accelerated, the daily work and study time of people on desk becomes longer and longer, and whether the design of the desk lamp is reasonable or not has important significance for the visual health of people, especially for the visual health of teenagers.
The desk lamp in the existing market generally lacks intelligent eyeshield function. Although the advanced desk lamp has the function of automatically adjusting the illumination according to the ambient brightness, the function still cannot fully meet the eye protection requirement.
Therefore, there is a need for an intelligent lighting device that can be used in combination with a scene to control the lighting area in different zones, can be adjusted along with the movement of the line of sight, and has different luminous fluxes and reasonable illuminance distribution.
Disclosure of Invention
The invention aims to solve the technical problems that a desk lamp in the prior art is unreasonable in design, generally lacks an intelligent eye protection function and cannot fully meet the eye protection requirement.
In order to solve the above technical problem, the present invention provides an illumination device including:
the sight tracking module is used for tracking the sight of a user and providing accurate reading and writing work surface area coordinate data for the illumination device to optimally control the illumination area;
the real-time calculation and control module is connected with the sight tracking module and is used for calculating the sight change track in real time, transmitting coordinate data of a read-write working surface area and sending a brightness and color temperature control instruction to the environment brightness and color temperature detection module in real time;
the environment brightness and color temperature detection module is connected with the real-time calculation and control module and is used for detecting the brightness and color temperature of the environment, transmitting the brightness and color temperature data to the real-time calculation and control module, receiving the brightness and color temperature control instruction sent by the real-time calculation and control module and transmitting the brightness and color temperature control instruction to the eye-protecting light source module;
the eye protection light source module is connected with the ambient brightness and color temperature detection module and used for providing illumination with adjustable brightness and adjustable color temperature according to the brightness and color temperature control instructions of the illumination device.
Optionally, the sight tracking module includes a projector, a sensor, and an algorithm unit;
the projector is used for projecting a pattern into an eye through near infrared rays;
the sensor is used for capturing images of the eyes of the user and the projected pattern with a high frame number;
the calculating method unit is used for searching the specific details and the reflected patterns of the eyes of the user and determining the position of the eyes of the user in the reading and writing working surface area.
Optionally, the real-time computing and controlling module includes a data collecting unit, a decision computing unit, and a partition controlling unit;
the data acquisition unit is used for acquiring coordinate data of a read-write working surface area of the sight tracking module and brightness and color temperature data of the ambient brightness and color temperature detection module;
the decision calculation unit is used for calculating in real time according to the data acquired by the data acquisition unit;
the partition control unit is used for matching the coordinate position of the read-write working surface area with the partition position of the lamp source, outputting control logic, controlling brightness, color temperature and position parameters and sending out corresponding control instructions.
Optionally, the ambient brightness and color temperature detection module includes a signal input unit, a color temperature sensor, a brightness sensor, and a signal output unit;
the signal input unit is used for receiving the brightness and color temperature control instruction sent by the real-time calculation and control module;
the color temperature sensor is used for collecting the color temperature of the lighting environment in real time;
the brightness sensor is used for acquiring the brightness of the illumination environment in real time;
and the signal output unit is used for transmitting the brightness and color temperature control instruction sent by the real-time calculation and control module to the eye-protecting light source module.
Optionally, the eye-protecting light source module includes a color temperature regulator, a brightness regulator, and a zone light source;
the color temperature adjuster is used for receiving a color temperature control instruction so as to control and adjust the color temperature of the subarea light source;
the brightness adjuster is used for receiving a brightness control instruction so as to control and adjust the brightness of the subarea light source;
the subarea light source is used for changing the brightness and the color temperature of the corresponding subarea area according to the instructions of the brightness adjuster and the color temperature adjuster.
Optionally, the number of the independent brightness and color temperature control partitions of the partitioned light source is not less than 9, and a mapping relationship is established between the independent brightness and color temperature control partitions of the partitioned light source and the read-write working surface area.
Optionally, the read-write working surface area is calculated by the real-time calculation and control module according to data transmitted by the sight tracking module.
In addition, the present invention also provides a control method of the lighting device according to the embodiment of the present invention, including:
predetermining a plane as a read-write working surface;
controlling the light source to form a corneal reflection bright spot on the cornea of the eye of the user;
detecting the pupil center position of the user and the center point position of the cornea reflection bright spot in real time;
determining the sight line attention position of the user according to the pupil center position of the user and the center point position of the cornea reflection bright spot;
and adjusting the brightness and/or color temperature of the light source of the lighting device irradiating in each area of the read-write working surface in real time according to the sight line attention position of the user and the ambient brightness and/or color temperature.
Optionally, the determining a plane as a read-write working plane in advance includes:
the method comprises the steps of placing a sight tracking module in a working area, determining a read-write working surface by means of the sight tracking module, and dividing the read-write working surface into at least 9 partitions.
Optionally, the determining the gaze attention position of the user according to the pupil center position of the user and the center point position of the corneal reflection bright spot includes:
calculating a vector between the pupil center position of the user and the center position of the cornea reflection bright spot; and determining the sight line attention position of the user according to the intersection point of the direction pointed by the vector between the pupil center position of the user and the center position of the cornea reflection bright spot and the reading and writing working surface.
Compared with the prior art, the lighting device and the control method thereof provided by the embodiment of the invention have the following advantages:
the illumination device provided by the embodiment of the invention comprises a sight tracking module, a real-time calculation and control module, an ambient brightness and color temperature detection module and an eye protection light source module, wherein the brightness and the color temperature of the eye protection light source are controlled and adjusted by tracking the sight, reading and writing the coordinate data of the working surface area and combining with ambient brightness and color temperature monitoring, so that the light position, the color temperature and the brightness are adjusted simultaneously, and the eye protection requirement is fully met.
Furthermore, the eye protection light source of the illumination device comprises a subarea light source, the brightness and the color temperature of the subarea light source are independently controlled to be not less than 9, the brightness and the color temperature of each control subarea can be accurately and intelligently adjusted according to the read-write working surface area, and the visual health of people is better maintained.
In addition, the embodiment of the invention also provides a control method of the lighting device, and the control method can intelligently control the lighting device, so that the light position, the color temperature and the brightness can be adjusted simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a lighting device according to an embodiment of the present invention.
Fig. 2 is a schematic view illustrating an exemplary illumination device according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a lighting device according to another embodiment of the present invention.
Fig. 4 is a schematic view of a partitioned light source of an illumination device according to an embodiment of the invention.
Fig. 5 is a schematic flow chart of an illumination device according to an embodiment of the invention.
Reference numerals:
10-a lighting device;
100-a gaze tracking module; 101-a projector; 102-an inductor; 103-algorithm unit;
200-a real-time calculation and control module; 201-a data acquisition unit; 202-a decision calculation unit; 203-a partition control unit;
300-ambient brightness and color temperature detection module; 301-a signal input unit; 302-a color temperature sensor; 303-a brightness sensor; 304-a signal output unit;
400-eye protection light source module; 401-color temperature regulator; 402-a brightness adjuster; 403-zoned light sources; 4031-LED light source; 4032-luminance and color temperature independent control zones.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Known from the background art, the desk lamp in the prior art is unreasonable in design, generally lacks intelligent eye protection function, and can not fully meet the eye protection requirement. The inventor of the present invention has found that the table lamp in the prior art still has the following drawbacks.
First, almost all lighting devices on the market today do not have the capability to perform zone control according to the bright areas. According to the requirements of the national standard of performance requirements of reading and writing operation table lamps (GB/T9473-2008), the table lamp illumination has a definite regional illumination control function. However, if the brightness of the light source is improved when the read-write area of the single face is pursued to meet the national standard, the problems of over-high local brightness, glare and the like which are harmful to eye health are brought. When strong light irradiates the eyes, a light curtain is formed, and the scenery is not seen clearly (dazzling light) like a curtain arranged in front of the scenery.
Secondly, the illumination of the desk lamp is fixed brightness, and cannot be adjusted along with the movement of the sight line, so that visual fatigue is easily caused. Especially for teenagers, the placement range of the textbook, the exercise book, the teaching book and other learning materials is likely to be larger than the brightness control area specified by the national standard, so that the eyes of the user can be changed between different light and dark areas. When reading and writing, the uneven illumination in the sight range of eyes can cause the eyes to ceaselessly adjust the pupil size, and the visual fatigue is easy to cause. Therefore, the illumination of the intelligent lamp on the desktop is required to be well matched with the movement of the sight line, otherwise, the eye diseases of teenagers, such as visual fatigue, myopia and the like, are increased.
Thirdly, the desk lamp needs to have different luminous fluxes and reasonable illumination distribution according to different use scenes. The light source of the traditional desk lamp is relatively concentrated and has strong directivity. When the lamp is close to the eye during study and work, the eyes are easily punctured due to too strong light; if the lights are far apart, the lights become dark and are easily blocked by the body parts such as hands, head or upper body. Therefore, the light is often too bright or too dark during learning and reading. Wherein, teenagers in the growth period of intelligence and body are the main users of the desk lamp. The reading and writing tasks of teenagers are mainly reading, writing or computer operation, and the requirements of different use situations on illumination are obviously different.
In order to solve the above problems, an embodiment of the present invention provides an illumination device, which includes a gaze tracking module, a real-time calculation and control module, an ambient brightness and color temperature detection module, and an eye protection light source module, wherein the module controls and adjusts brightness and color temperature of an eye protection light source by tracking and reading coordinate data of a working surface area through a gaze, and combining ambient brightness and color temperature monitoring, so as to adjust light position, color temperature, and brightness at the same time, and fully meet eye protection requirements.
In addition, the embodiment of the invention also provides a control method of the lighting device, and the control method can intelligently control the lighting device, so that the light position, the color temperature and the brightness can be adjusted simultaneously.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of an illumination device according to an embodiment of the invention.
An embodiment of the present invention provides an illumination device 10, including:
the sight tracking module 100 is used for tracking the sight of a user and providing accurate reading and writing work surface area coordinate data for the illumination device to optimally control the illumination area;
the real-time calculation and control module 200 is connected with the sight tracking module and is used for calculating the sight change track in real time, transmitting coordinate data of a read-write working surface area and sending a brightness and color temperature control instruction to the environment brightness and color temperature detection module in real time;
the environment brightness and color temperature detection module 300 is connected with the real-time calculation and control module and is used for detecting the brightness and color temperature of the environment, transmitting the brightness and color temperature data to the real-time calculation and control module, receiving the brightness and color temperature control instruction sent by the real-time calculation and control module and transmitting the control instruction to the eye-protecting light source module;
and the eye protection light source module 400 is connected with the ambient brightness and color temperature detection module and used for providing illumination with adjustable brightness and adjustable color temperature according to the brightness and color temperature control instructions of the illumination device.
It is understood that, in the embodiment of the present invention, there is no particular limitation on the location of the gaze tracking module, as long as the gaze tracking module is convenient for tracking the gaze of the user, for example, the gaze tracking module may be located in the read/write working surface partition.
Fig. 2 is a schematic view illustrating an exemplary illumination device according to an embodiment of the present invention.
The operation principle of the lighting device according to the embodiment of the present invention is briefly described with reference to fig. 2.
In the embodiment, the lighting device can track the sight of a user through the sight tracking module, establish the coordinates of the read-write working surface area through the sight tracking, transmit the coordinates of the read-write working surface area to the real-time calculation and control module, and calculate the sight change track in real time through the real-time calculation module; the environment brightness and color temperature detection module can detect the brightness and color temperature of the environment in real time and transmit the brightness and color temperature data to the real-time calculation and control module, the real-time calculation and control module sends a real-time brightness and color temperature control instruction to the environment brightness and color temperature detection module by combining the sight line change track and the brightness and color temperature data, and the environment brightness and color temperature detection module feeds the instruction back to the eye protection light source module to adjust or maintain the brightness or color temperature of the light source.
Fig. 3 is a schematic diagram of a lighting device according to another embodiment of the present invention.
Referring to fig. 1 and 3, in some embodiments, the gaze tracking module 100 includes a projector 101, a sensor 102, and an algorithm unit 103;
the projector 101 is used for projecting a pattern into an eye through near infrared rays;
the sensor 102 is used to capture images of the user's eyes and projected patterns at high frame rates;
the algorithm unit 103 is used to search the specific details and the reflected patterns of the user's eyes and determine the position of the user's eyes in the reading/writing working surface area.
The wavelength of the near-infrared light in this embodiment is 850 nm.
Referring to fig. 1 and fig. 3, in an embodiment, the real-time calculation and control module 200 includes a data acquisition unit 201, a decision calculation unit 202, and a partition control unit 203;
the data acquisition unit 201 is configured to acquire coordinate data of a read-write working surface region of the gaze tracking module 100 and luminance and color temperature data of the ambient luminance and color temperature detection module 300;
the decision calculation unit 202 is configured to calculate in real time according to the data acquired by the data acquisition unit 201;
the partition control unit 203 is configured to match the coordinate position of the read-write working surface area with the partition position of the light source, output a control logic, control the brightness, the color temperature, and the position parameter, and send a corresponding control instruction.
Referring to fig. 1 and fig. 3, in some embodiments, the ambient brightness and color temperature detecting module 300 includes a signal input unit 301, a color temperature sensor 302, a brightness sensor 303, and a signal output unit 304;
the signal input unit 301 is configured to receive a brightness and color temperature control instruction sent by the real-time calculation and control module 200;
the color temperature sensor 302 is used for collecting the color temperature of the lighting environment in real time;
the brightness sensor 303 is used for acquiring the brightness of the lighting environment in real time;
the signal output unit 304 is configured to transmit the brightness and color temperature control command sent by the real-time calculation and control module 200 to the eye-protecting light source module 400.
With continued reference to fig. 1 and 3, in some embodiments, the eye-protecting light source module 400 includes a color temperature adjuster 401, a brightness adjuster 402, and a zoned light source 403;
the color temperature adjuster 401 is configured to receive a color temperature control instruction, so as to control and adjust the color temperature of the subarea light source 403;
the brightness adjuster 402 is used for receiving a brightness control instruction, so as to control and adjust the brightness of the subarea light source 403;
the subarea light source 403 is used for changing the brightness and the color temperature of the corresponding subarea area according to the instructions of the brightness adjuster 402 and the color temperature adjuster 401.
Fig. 4 is a schematic view of a partitioned light source of an illumination device according to an embodiment of the invention.
Referring to fig. 4, in some embodiments, the partitioned light source 403 is 1 or more LED light sources 4031.
Referring to fig. 4, the number of the independent brightness and color temperature control partitions 4032 of the partitioned light source 403 is not less than 9, and a mapping relationship is established between the independent brightness and color temperature control partitions of the partitioned light source and the read-write working surface partitions, so that the brightness and color temperature of each control partition can be accurately and intelligently adjusted according to the read-write working surface area, and the visual health of people can be better maintained.
It should be noted that each of the brightness and color temperature independent control sections includes 1 or more LED light sources.
In some embodiments, the read-write working surface partition is calculated by the real-time calculation and control module according to data transmitted by the sight tracking module.
In some embodiments, the effective capturing distance of the gaze tracking module is 50cm to 90cm, so as to satisfy the requirement of a large placing range of a user to a greater extent, and solve the problem of a small brightness control area of the desk lamp in the prior art.
Fig. 5 is a schematic flow chart of an illumination device according to an embodiment of the invention.
The operation principle of the lighting device according to the embodiment of the present invention is further briefly described with reference to fig. 5.
When the lighting device is actually used, after the sight tracking module is started, the head and eyeball motion tracks of a user can be automatically tracked, sight change track data is transmitted to the real-time calculation and control module in real time, the environment brightness and color temperature detection module can also detect the brightness and color temperature of the environment in real time and transmit the brightness and color temperature data to the real-time calculation and control module, the real-time calculation and control module combines the sight change track, the brightness and color temperature data to send a real-time brightness and chromaticity control instruction to the environment brightness and color temperature detection module, the environment brightness and color temperature detection module respectively feeds the color temperature control instruction and the brightness control instruction back to the color temperature regulator and the brightness regulator of the eye protection light source module, so that the subarea light source is regulated, if the sight change is detected in the process, the brightness or the color temperature of the light source is regulated, and if the sight does, the existing light source brightness or color temperature is maintained.
In addition, an embodiment of the present invention further provides a method for controlling an illumination device, including:
predetermining a plane as a read-write working surface;
controlling the light source to form a corneal reflection bright spot on the cornea of the eye of the user;
detecting the pupil center position of the user and the center point position of the cornea reflection bright spot in real time;
determining the sight line attention position of the user according to the pupil center position of the user and the center point position of the cornea reflection bright spot;
and adjusting the brightness and/or color temperature of the light source of the lighting device irradiating in each area of the read-write working surface in real time according to the sight line attention position of the user and the ambient brightness and/or color temperature.
In some embodiments, said predetermining a plane as a read-write working plane comprises:
the method comprises the steps of placing a sight tracking module in a working area, determining a read-write working surface by means of the sight tracking module, and dividing the read-write working surface into at least 9 partitions.
In some embodiments, the determining the gaze attention position of the user according to the pupil center position and the center point position of the corneal reflection bright spot of the user comprises:
calculating a vector between the pupil center position of the user and the center position of the cornea reflection bright spot; and determining the sight line attention position of the user according to the intersection point of the direction pointed by the vector between the pupil center position of the user and the center position of the cornea reflection bright spot and the reading and writing working surface.
It is understood that the control method of the lighting device described above can also be applied to the lighting device described in the embodiment of the present invention.
The features and advantages of the lighting device according to the present invention will be further described by performing user tendency investigation, performance detection (working distance of the gaze tracking module/gaze tracking range), and national standard compliance detection (brightness/color temperature adjustment range of the light source) on the lighting device according to the embodiment of the present invention.
1. Subjective evaluation of proportional relation preference of maximum illumination of light source and ambient illumination
A total of 10 people who work frequently on desk were investigated and the results are shown in Table 1.
TABLE 1 subjective evaluation results of the proportional relationship preference between the maximum illumination of the light source and the ambient illumination
| Ratio of | 5：5 | 5：4 | 5：3 | 5：2 | 5：1 | 5：0 |
| Number of votes obtained | 0 | 0 | 1 | 2 | 7 | 0 |
As can be seen from Table 1, the preferred ratio for most readers is 5: 1. Accordingly, the illumination device can optimize the illumination scheme through the result.
2. Sight tracking module verifies test data
(1) Sight tracking module working distance test
Gaze tracking module working distance definition: under the normal working condition of the module, the straight-line distance from the glabellar point to the lens of the sight tracking module; a measuring tool: a flexible rule; the measured values are shown in Table 2.
TABLE 2 Sight tracking Module working distance verification
As can be seen from table 2, the minimum distance that the gaze tracking module can work normally is 0.5m, and the maximum distance is 0.9 m.
(2) Gaze tracking range
The gaze tracking range is defined as: the capture range of the trackable fixation point with the head still held is shown in table 3.
TABLE 3 Sight tracking Range verification
| Horizontal direction (m) | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 |
| Whether to capture normally | T | T | T | T | T | F | F |
| Vertical direction (m) | 0.05 | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 |
| Whether to capture normally | T | T | T | T | T | T | F |
As can be seen from table 3, the single sight line capturing range of the sight line tracking module is 0.6m (horizontal) × 0.3m (vertical) when the head is still.
3. Light source brightness adjustment range measurement
(1) Maximum brightness value of read-write working face region: 510Lx
(2) Adjacent area luminance value: 320Lx
The measurement result shows that the brightness index of the lighting device meets the requirements of the national standard GB/T9473-2017 'performance requirement of reading and writing operation desk lamp'.
4. Light source chromaticity adjustment range measurement
The measuring method comprises the following steps: and (5) carrying out pure color temperature test, uniformly adjusting and recording the reading of the luminance meter in the whole color temperature adjusting range, wherein the measuring result is shown in a table 4.
TABLE 4 light Source color temperature Range detection
As can be seen from table 4, the lowest color temperature value for the color temperature adjustment of the light source: 2500K, maximum color temperature value: 5000K. The color temperature index of the lighting device meets the requirements of the national standard GB/T9473-2017 'performance requirement of reading and writing operation desk lamp'.
Therefore, the illumination device provided by the embodiment of the invention meets the national standard requirements, can optimize and configure the illumination strategy, and has the effect of preventing the eye fatigue of teenagers.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An illumination device, comprising:
the sight tracking module is used for tracking the sight of a user and providing accurate reading and writing work surface area coordinate data for the illumination device to optimally control the illumination area;
the real-time calculation and control module is connected with the sight tracking module and is used for calculating the sight change track in real time, transmitting coordinate data of a read-write working surface area and sending a brightness and color temperature control instruction to the environment brightness and color temperature detection module in real time;
the environment brightness and color temperature detection module is connected with the real-time calculation and control module and is used for detecting the brightness and color temperature of the environment, transmitting the brightness and color temperature data to the real-time calculation and control module, receiving the brightness and color temperature control instruction sent by the real-time calculation and control module and transmitting the brightness and color temperature control instruction to the eye-protecting light source module;
the eye protection light source module is connected with the ambient brightness and color temperature detection module and used for providing illumination with adjustable brightness and adjustable color temperature according to the brightness and color temperature control instructions of the illumination device.
2. The illumination device of claim 1, wherein the gaze tracking module comprises a projector, a sensor, an algorithm unit;
the projector is used for projecting a pattern into an eye through near infrared rays;
the sensor is used for capturing images of the eyes of the user and the projected pattern with a high frame number;
the calculating method unit is used for searching the specific details and the reflected patterns of the eyes of the user and determining the position of the eyes of the user in the reading and writing working surface area.
3. The illumination device of claim 1, wherein the real-time computing and control module comprises a data acquisition unit, a decision-making computing unit, a zone control unit;
the data acquisition unit is used for acquiring coordinate data of a read-write working surface area of the sight tracking module and brightness and color temperature data of the ambient brightness and color temperature detection module;
the decision calculation unit is used for calculating in real time according to the data acquired by the data acquisition unit;
the partition control unit is used for matching the coordinate position of the read-write working surface area with the partition position of the lamp source, outputting control logic, controlling brightness, color temperature and position parameters and sending out corresponding control instructions.
4. The illumination apparatus of claim 1, wherein the ambient brightness and color temperature detection module comprises a signal input unit, a color temperature sensor, a brightness sensor, a signal output unit;
the signal input unit is used for receiving the brightness and color temperature control instruction sent by the real-time calculation and control module;
the color temperature sensor is used for collecting the color temperature of the lighting environment in real time;
the brightness sensor is used for acquiring the brightness of the illumination environment in real time;
and the signal output unit is used for transmitting the brightness and color temperature control instruction sent by the real-time calculation and control module to the eye-protecting light source module.
5. The illumination device of claim 1, wherein the eye-protecting light source module comprises a color temperature regulator, a brightness regulator, a zoned light source;
the color temperature adjuster is used for receiving a color temperature control instruction so as to control and adjust the color temperature of the subarea light source;
the brightness adjuster is used for receiving a brightness control instruction so as to control and adjust the brightness of the subarea light source; the subarea light source is used for changing the brightness and the color temperature of the corresponding subarea area according to the instructions of the brightness adjuster and the color temperature adjuster.
6. The illumination device as claimed in claim 5, wherein the number of the independent brightness and color temperature control subareas of the subarea light source is not less than 9, and the independent brightness and color temperature control subareas of the subarea light source are mapped with the read-write working surface area.
7. The illumination device of claim 6, wherein the read-write work surface area is calculated by the real-time calculation and control module based on data transmitted by the eye tracking module.
8. A method of controlling a lighting device, comprising:
predetermining a plane as a read-write working surface;
controlling the light source to form a corneal reflection bright spot on the cornea of the eye of the user;
detecting the pupil center position of the user and the center point position of the cornea reflection bright spot in real time;
determining the sight line attention position of the user according to the pupil center position of the user and the center point position of the cornea reflection bright spot;
and adjusting the brightness and/or color temperature of the light source of the lighting device irradiating in each area of the read-write working surface in real time according to the sight line attention position of the user and the ambient brightness and/or color temperature.
9. The method of controlling a lighting device according to claim 8, wherein the predetermining a plane as a read-write working plane comprises:
the method comprises the steps of placing a sight tracking module in a working area, determining a read-write working surface by means of the sight tracking module, and dividing the read-write working surface into at least 9 partitions.
10. The method for controlling a lighting device according to claim 8, wherein the determining the gaze attention position of the user according to the pupil center position of the user and the center point position of the corneal reflection hot spot comprises:
calculating a vector between the pupil center position of the user and the center position of the cornea reflection bright spot; and determining the sight line attention position of the user according to the intersection point of the direction pointed by the vector between the pupil center position of the user and the center position of the cornea reflection bright spot and the reading and writing working surface.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504833A (en) * | 2021-09-10 | 2021-10-15 | 世纳微电子科技(成都)有限公司 | Digital optical color temperature sensor, eyeball tracking device and human-computer interaction system |
| CN115499968A (en) * | 2022-11-21 | 2022-12-20 | 四川世纪和光科技发展有限公司 | LED lamp with adjustable eye axis and use method thereof |
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2021
- 2021-02-23 CN CN202110200663.8A patent/CN112839414A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504833A (en) * | 2021-09-10 | 2021-10-15 | 世纳微电子科技(成都)有限公司 | Digital optical color temperature sensor, eyeball tracking device and human-computer interaction system |
| CN115499968A (en) * | 2022-11-21 | 2022-12-20 | 四川世纪和光科技发展有限公司 | LED lamp with adjustable eye axis and use method thereof |
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