A method for realizing automatic dimming of lighting equipment and related products

Abstract

Embodiments of the present invention provide a method for realizing automatic dimming of a lighting device and related products. The method includes: acquiring an image of an illumination area of ​​the lighting device; identifying a usage scenario of the illumination area based on the image; determining a target light mode corresponding to the usage scenario; and setting the current light mode to the target light mode. In addition, embodiments of the present invention provide a lighting device, a device, and a computer-readable storage medium. By adjusting the light mode of the lighting device using the usage scenario, the method of the present invention enables the lighting device to be dimmed more accurately and automatically meet the user's usage needs, thereby significantly reducing the impact of inaccurate dimming of the lighting device on the user's physical health, bringing a better experience to the user, and effectively reducing the number of manual dimming by the user, making the usage process simpler and more convenient.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of lighting, and more specifically, embodiments of the present invention relate to a method for implementing automatic dimming of a lighting device, a lighting device, a device for executing the aforementioned method, and a computer-readable storage medium. Background Art

[0002] This section is intended to provide background or context for the embodiments of the invention set forth in the claims. The descriptions herein may include concepts that may be explored, but not necessarily concepts that have been previously thought of or explored. Therefore, unless otherwise noted herein, the content described in this section is not prior art with respect to the specification and claims of this application, and is not admitted to be prior art by inclusion in this section.

[0003] Lighting is a measure to illuminate work and living places or individual objects using various light sources. Usually, lighting is only illuminated by one kind of light. However, with the continuous advancement of science and technology and the continuous improvement of people's living standards, lighting with only one kind of light can no longer meet people's needs, so the technology that can adjust the light came into being. The dimmer switch was developed to meet people's different needs for light brightness at different times. The commonly used dimmer switch can control the conduction degree by controlling and changing the phase angle of the thyristor, thereby adjusting the brightness of the light. The dimmer switch can be divided into manual dimming mode and automatic dimming mode according to the operation mode, among which the manual dimming mode can include knob dimming, touch dimming, button dimming and remote control dimming, etc. The automatic dimming mode can include induction dimming, etc.

[0004] Manual dimming is a way to adjust the brightness of lights, but it is limited by people's habits and professional limitations, and it is impossible to achieve an effective dimming process. The current automatic dimming method relies on the detection accuracy of ambient light to achieve an accurate dimming process. If the ambient light detection is inaccurate, it may lead to poor dimming accuracy, which will increase the burden on the human eye in the long run. As people's activities are more abundant, the demand for eye use has also increased dramatically, but it is impossible to provide suitable lights for multiple needs. Therefore, a method that can achieve automatic dimming according to the eye use scenario is needed to meet people's needs. Summary of the invention

[0005] In the prior art, manual dimming and dimming by sensing ambient light cannot achieve a good dimming effect, which is a very annoying process.

[0006] To this end, there is a great need for an improved solution and related products for realizing automatic dimming of lighting equipment, which can accurately identify the user's usage scenario and automatically adjust the lighting mode according to the usage scenario, so that the user can carry out activities under appropriate lighting conditions.

[0007] In this context, embodiments of the present invention are intended to provide a solution for realizing automatic dimming of a lighting device and related products.

[0008] In a first aspect of an embodiment of the present invention, a method for realizing automatic dimming of a lighting device is provided, comprising: acquiring an image of an illumination area of ​​the lighting device; identifying a usage scenario of the illumination area based on the image; determining a target light mode corresponding to the usage scenario; and setting a current light mode to the target light mode.

[0009] In one embodiment of the present invention, the identifying the usage scenario of the illumination area based on the image includes: detecting the image using a scene detection model to obtain object information and / or user posture information in the light illumination area; and determining the usage scenario based on the object information and / or user posture information.

[0010] In another embodiment of the present invention, determining the target lighting mode corresponding to the usage scenario includes: selecting the target lighting mode from preset lighting modes according to the usage scenario, wherein the preset lighting modes include one or more of the following: manual mode, automatic brightness mode, online class light mode, homework light mode, painting light mode and relaxation light mode.

[0011] In another embodiment of the present invention, setting the current lighting mode as the target lighting mode includes: comparing the current lighting mode with the target lighting mode; and in response to the current lighting mode not matching the target lighting mode, adjusting from the current lighting mode to the target lighting mode.

[0012] In another embodiment of the present invention, it also includes: obtaining ambient light information of the illumination area, and adjusting the lighting parameters in the target lighting mode according to the ambient light information, wherein the lighting parameters include illumination and color temperature; and / or obtaining the visible light reflectivity of the illumination area, and correcting the visible light reflectivity in the target lighting mode according to the visible light reflectivity.

[0013] In one embodiment of the present invention, obtaining the visible light reflectivity of the illuminated area includes: detecting light reflection information at different times during the light change process when the lighting device is turned on; and determining the visible light reflectivity of the illuminated area based on the light reflection information at multiple different times.

[0014] In another embodiment of the present invention, the correcting the visible light reflectance in the current lighting mode according to the visible light reflectance includes: determining a compensation value of the lighting parameter in the target lighting mode according to the visible light reflectance; and adjusting the lighting parameters in the lighting mode according to the compensation value of the lighting parameter to correct the visible light reflectance to a predetermined range.

[0015] In another embodiment of the present invention, it also includes: obtaining visual characteristic information of the user, and adjusting the dimming curve during the lighting change process according to the visual characteristic information of the user; and / or obtaining visual characteristic information of the user, and adjusting the standard value of lighting parameters in each lighting mode according to the visual characteristic information of the user, wherein the lighting parameters include illuminance and color temperature.

[0016] In still another embodiment of the present invention, adjusting the standard values ​​of lighting parameters under each lighting mode according to the visual characteristic information of the user includes: obtaining the user's perception information of different colors or the perception information of the brightness of different colors, and adjusting the standard values ​​of lighting parameters under each lighting mode according to the perception information of different colors or the perception information of the brightness of different colors; and / or obtaining the user's spatial perception characteristics, and adjusting the standard values ​​of lighting parameters under each lighting mode according to the spatial perception characteristics.

[0017] In one embodiment of the present invention, the light change process includes any one or more of the following: a light-on change process; a light-off change process; and a switch process between different light modes.

[0018] In another embodiment of the present invention, it also includes: obtaining the user's light stimulation time perception characteristics, and adjusting the color temperature in the lighting mode according to the user's light stimulation time perception characteristics, wherein the light stimulation time perception characteristics include the duration of continuous eye fatigue.

[0019] In a second aspect of an embodiment of the present invention, a lighting device is provided, comprising: an image acquisition unit configured to acquire an image of an illumination area of ​​the lighting device; a lighting unit configured to provide illumination; a processing unit configured to be connected to the image acquisition unit and the lighting unit, and configured to: identify a usage scenario of the illumination area based on the image; determine a target lighting mode corresponding to the usage scenario; and set a current lighting mode to the target lighting mode.

[0020] In one embodiment of the present invention, the processing unit is specifically configured to: detect the image using a scene detection model to obtain object information and / or user posture information in the light illumination area; and determine the usage scene based on the object information and / or user posture information.

[0021] In another embodiment of the present invention, determining the target lighting mode corresponding to the usage scenario includes: selecting the target lighting mode from preset lighting modes according to the usage scenario, wherein the preset lighting modes include one or more of the following: manual mode, automatic brightness mode, online class light mode, homework light mode, painting light mode and relaxation light mode.

[0022] In yet another embodiment of the present invention, the processing unit is specifically configured to: compare the current lighting mode with the target lighting mode; and in response to the current lighting mode not matching the target lighting mode, adjust from the current lighting mode to the target lighting mode.

[0023] In still another embodiment of the present invention, the processing unit comprises: an ambient light dimming unit configured to obtain ambient light information of the illumination area, and adjust the lighting parameters in the target lighting mode according to the ambient light information, wherein the lighting parameters include illuminance and color temperature; and / or a reflectivity dimming unit configured to obtain the visible light reflectivity of the illumination area, and correct the visible light reflectivity in the target lighting mode according to the visible light reflectivity.

[0024] In one embodiment of the present invention, the reflectivity dimming unit is specifically configured to: detect light reflection information at different times during the light change process when the lighting device is turned on; and determine the visible light reflectivity of the illumination area based on the light reflection information at multiple different times.

[0025] In another embodiment of the present invention, the reflectivity dimming unit is specifically configured to: determine a compensation value of the lighting parameter in the target lighting mode according to the visible light reflectivity; and adjust the lighting parameter in the lighting mode according to the compensation value of the lighting parameter to correct the visible light reflectivity to a predetermined range.

[0026] In another embodiment of the present invention, the processing unit also includes: a first correction unit, which is configured to obtain visual feature information of the user, and adjust the dimming curve during the light change process according to the visual feature information of the user; and / or a second correction unit, which is configured to obtain visual feature information of the user, and adjust the standard value of lighting parameters in each lighting mode according to the visual feature information of the user, wherein the lighting parameters include illuminance and color temperature.

[0027] In still another embodiment of the present invention, the second correction unit is specifically configured to: obtain the user's perception information of different colors or the perception information of the brightness of different colors, and adjust the standard value of the lighting parameters under each lighting mode according to the perception information of different colors or the perception information of the brightness of different colors; and / or obtain the user's spatial perception characteristics, and adjust the standard value of the lighting parameters under each lighting mode according to the spatial perception characteristics.

[0028] In one embodiment of the present invention, the light change process includes any one or more of the following: a light-on change process; a light-off change process; and a switch process between different light modes.

[0029] In another embodiment of the present invention, the processing unit is further specifically configured to: obtain the user's light stimulation time perception characteristics, and adjust the color temperature in the lighting mode according to the user's light stimulation time perception characteristics, wherein the light stimulation time perception characteristics include the duration of continuous eye fatigue.

[0030] In a third aspect of an embodiment of the present invention, a device is provided, comprising: a processor; and a memory storing computer instructions for implementing automatic dimming of a lighting device, wherein when the computer instructions are executed by the processor, the device executes the method described in the foregoing and following embodiments.

[0031] In a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is provided, comprising program instructions for implementing automatic dimming of a lighting device, and when the program instructions are executed by a processor, the method described in the foregoing and following embodiments is implemented.

[0032] According to the scheme and related products for realizing automatic dimming of lighting equipment according to the embodiments of the present invention, it is possible to obtain an image of the area illuminated by the lighting equipment to realize the identification of the usage scenario of the illumination area and the switching of the lighting mode under the usage scenario. It can be seen that the scheme of the present invention can dynamically provide suitable lighting by identifying the usage scenario of the area illuminated by the lighting equipment and adjusting the lighting mode according to the usage scenario, thereby effectively improving the accuracy of lighting use, and significantly reducing the eye burden of the user, bringing a better experience to the user. In some embodiments of the present invention, after determining the lighting mode under the usage scenario, the lighting parameters under the target lighting mode can be adjusted according to the ambient light, and / or the visible light reflectance under the target lighting mode can be adjusted according to the visible light reflectance, thereby fully considering the influence of direct and reflected light on the lighting effect on the scene, and improving the accuracy of lighting adjustment.

[0033] In other embodiments of the present invention, the standard value of the illumination parameter in each lighting mode or the dimming curve during the lighting change process can be adjusted according to the user's visual characteristic information, so as to achieve a more accurate and personalized dimming effect, thereby further improving the accuracy of dimming. In addition, in some other embodiments of the present invention, by obtaining the user's light stimulation time perception characteristics, the color temperature in the lighting mode can be adjusted, thereby ensuring the user's eye comfort and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0035] Figure 1 A block diagram schematically illustrates an exemplary computing system 100 suitable for implementing embodiments of the present invention;

[0036] Figure 2 A flowchart of a method for realizing automatic dimming of a lighting device according to an embodiment of the present invention is schematically shown;

[0037] Figure 3 Schematically showing a schematic diagram for automatically dimming a lighting device according to some other embodiments of the present invention;

[0038] Figure 4 A flowchart of a method for automatically dimming according to ambient light information and visible light reflectivity according to an embodiment of the present invention is schematically shown;

[0039] Figure 5 A schematic diagram schematically shows a method for correcting a dimming process according to a user's visual characteristics according to another embodiment of the present invention;

[0040] Figure 6 A schematic diagram of a lighting device according to an embodiment of the present invention is schematically shown;

[0041] Figure 7 A schematic diagram schematically shows a lighting device according to another embodiment of the present invention; and

[0042] Figure 8 A schematic block diagram of a device according to an embodiment of the present invention is schematically shown.

[0043] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts. DETAILED DESCRIPTION

[0044] The principles and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] Figure 1 1 is a block diagram of an exemplary computing system 100 suitable for implementing embodiments of the present invention. Figure 1 As shown, the computing system 100 may include: a central processing unit (CPU) 101, a random access memory (RAM) 102, a read-only memory (ROM) 103, a system bus 104, a hard disk controller 105, a keyboard controller 106, a serial controller 107, a parallel interface controller 108, a display controller 109, a hard disk 110, a keyboard 111, a serial external device 112, a parallel external device 113, and a display 114. Among these devices, the CPU 101, the RAM 102, the ROM 103, the hard disk controller 105, the keyboard controller 106, the serial controller 107, the parallel controller 108, and the display controller 109 are coupled to the system bus 104. The hard disk 110 is coupled to the hard disk controller 105, the keyboard 111 is coupled to the keyboard controller 106, the serial external device 112 is coupled to the serial interface controller 107, the parallel external device 113 is coupled to the parallel interface controller 108, and the display 114 is coupled to the display controller 109. It should be understood that Figure 1 The structural block diagram is only for the purpose of illustration, rather than limiting the scope of the present invention. In some cases, some equipment may be added or reduced according to specific circumstances.

[0046] It is known to those skilled in the art that the embodiments of the present invention may be implemented as a system, method or computer program product. Therefore, the present disclosure may be specifically implemented in the following forms, namely: complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software, generally referred to herein as a "circuit", "module" or "system". In addition, in some embodiments, the present invention may also be implemented in the form of a computer program product in one or more computer-readable media, which contains computer-readable program code.

[0047] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive examples) of computer-readable storage media may include, for example: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device.

[0048] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0049] The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0050] Computer program code for performing the operation of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0051] The following will describe the implementation of the present invention with reference to the flowchart of the method of the embodiment of the present invention and the block diagram of the device (or system). It should be understood that each square frame of the flowchart and / or block diagram and the combination of square frames in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer or other programmable data processing device, thereby producing a machine, and these computer program instructions are executed by a computer or other programmable data processing device to produce a device that implements the function / operation specified in the square frame in the flowchart and / or block diagram.

[0052] These computer program instructions may also be stored in a computer-readable medium that enables a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable medium produce a product that includes an instruction device that implements the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0053] Computer program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby enabling the instructions executed on the computer or other programmable device to provide a process for implementing the functions / operations specified in the blocks in the flowchart and / or block diagram.

[0054] According to an embodiment of the present invention, a method for realizing automatic dimming of a lighting device and a related product are proposed. In addition, any number of elements in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0055] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention. SUMMARY OF THE INVENTION

[0057] The inventors have found that the dimming effect of existing lighting equipment is poor, it cannot provide a good eye protection effect, and the user experience is poor. For example, the way in which existing lighting equipment achieves automatic dimming is to adjust the brightness according to the ambient light. Specifically, a light sensor is set in the lighting equipment to detect the lighting conditions of the lighting equipment. The light sensor can detect ambient light information, that is, the direct light condition of the lighting equipment, and send the detected ambient light information to the controller, and the controller adjusts the illumination of the lighting equipment according to the ambient light information. In other words, the current lighting equipment can only adjust the brightness in combination with the direct light condition, and the adjusted light may not be consistent with the actual situation seen by the human eye, so it cannot achieve a good eye protection effect. Moreover, the dimming effect of this dimming method depends on the accuracy of ambient light detection. If a light sensor with low accuracy is used, an accurate dimming effect cannot be achieved, thereby failing to meet people's increasingly rich activity needs. If a light sensor with higher accuracy is used, the cost of the lighting equipment will increase.

[0058] Based on this, the inventors found that the key issue in meeting the lighting requirements in different scenarios is how to associate different scenarios with corresponding lighting modes to ensure the appropriate lighting in specific scenarios. Specifically, the lighting modes in different scenarios can be preset, and the corresponding lighting modes can be selected according to the usage scenarios by identifying the usage scenarios of the lighting device's illumination area, thereby improving the accuracy of lighting settings in different usage scenarios and providing users with a better experience.

[0059] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below.

[0060] Exemplary Methods

[0061] Reference below Figure 2 The method for automatically dimming a lighting device according to an exemplary embodiment of the present invention is described below. It should be noted that the embodiments of the present invention can be applied to any applicable lighting device.

[0062] Figure 2 The flowchart of a method 200 for implementing automatic dimming of a lighting device according to an embodiment of the present invention is schematically shown. Figure 2As shown, at step S201, an image of the illumination area of ​​the lighting device is obtained. It should be noted that in the context of the present invention, the lighting device can be any form of lamp, such as a desk lamp on a desk, a ceiling lamp, a chandelier and a wall lamp in a room. Based on this, it can be understood that the present invention shows the lighting device as a desk lamp on a desk for exemplary purposes. Based on this, the illumination area of ​​the lighting device can include the desktop part on the desk and the position part of the user in front of the desk, so that the image information on the desk can be obtained, and the image information containing the current posture of the user can also be obtained.

[0063] At step S202, the usage scenario of the irradiated area is identified according to the image. In some embodiments, the identification of the usage scenario can be implemented by a general scene detection model. The scene detection model can be a machine learning model such as a neural network model. For example, the scene detection model can be used to identify items such as books, exercise books, computers, tablets, and mobile phones in the image. The scene detection model can also be used to identify the body posture of the user appearing in the image. For example, the user's working or studying posture, the relaxing posture, the situation where the user's posture is not detected, etc. The current usage scenario can be identified by the above-mentioned object information and user posture information on the desk desktop. As an example, the usage scenario may include online class scenes, homework scenes, painting scenes, and relaxation scenes.

[0064] At step S203, the target light mode corresponding to the usage scenario is determined. In some embodiments, the lighting device can provide lights of corresponding modes for various activities of the user, thereby automatically performing dimming settings. Based on this, a variety of different light modes can be preset for the lighting device. As an example, a manual mode, an automatic brightness mode, an online class light mode, an assignment light mode, a painting light mode, and a relaxation light mode can be provided for the lighting device. During the use of the lighting device, the target light mode is selected from the preset light modes according to the user's usage scenario. As an example, when it is detected from the image that the usage scenario is a painting scene, the painting light mode corresponding to the scene can be selected from the preset light modes.

[0065] At step S204, the current lighting mode is set to the target lighting mode. In some embodiments, if the usage scenario in the current lighting mode is detected, the target lighting mode corresponding to the current usage scenario can be selected, and the current lighting mode can be set to the target lighting mode. For example, if the user is currently using a laptop, the current lighting mode can be switched to an online class lighting mode. Thus, by identifying the usage scenario of the image of the illumination area of ​​the lighting device, the corresponding lighting mode can be further switched according to the usage scenario, achieving accurate dimming in different scenarios, thereby effectively improving the user experience.

[0066] The following Figure 2 Some possible exemplary implementations of each step are further described.

[0067] In some embodiments, when the usage scenario of the irradiated area is identified based on the image, a camera provided on the lighting device can be used to realize image acquisition. The image acquisition can also be performed periodically. The acquisition cycle can be set according to the needs, for example, the image of the irradiated area is collected every 10-30 minutes, and the image is recognized. For example, after the user turns on the light, the image is collected and the usage scenario is identified, and then the corresponding lighting mode is adjusted. Assuming that the user is using a notebook, the online class light mode can be switched. After 10 minutes, the image is collected again and the usage scenario is identified. If the user is in a posture such as looking around at this time, switch to the relaxation light mode. Repeatedly, the usage scenario can be continuously identified and adjusted to the appropriate lighting mode. When identifying the usage scenario, scene recognition can be realized according to books, drawing boards, notebooks, user's current posture, etc. in the irradiated area.

[0068] In addition, the inventor has fully considered the demand for lighting modes when using lighting equipment on a desk, and preset one or more lighting modes in the lighting equipment, including manual mode, automatic brightness mode, online class light mode, homework light mode, painting light mode, and relaxation light mode. And when setting the lighting parameters under different lighting modes, the Kruithof CURVE theory was introduced into the field of desk lamps, and the above optimal lighting modes were derived through a large number of independent experimental demonstrations. Based on this, the ideal target lighting mode can be selected according to the objects in the image and the user's posture to achieve accurate dimming in different scenes.

[0069] Specifically, Figure 3 Schematic diagrams for automatically dimming lighting equipment according to other embodiments of the present invention are shown schematically. Figure 3 As shown, at step S301, an image of the illumination area of ​​the lighting device is obtained. Then at step S302, the image can be detected using a scene detection model to obtain object information and / or user posture information in the illumination area of ​​the lighting device.

[0070] At step S303, the usage scenario is determined based on the object information and / or the user posture information. In some embodiments, when the image is detected using a scene detection model, only the object information in the irradiation area may be detected. For example, books, notebooks, drawing boards, etc. in the irradiation area are detected, so as to identify the corresponding usage scenario based on the detected object information. At this time, the lighting modes that can be provided include manual mode, automatic brightness mode, online class light mode, homework light mode and painting light mode. It is also possible to detect only the posture of the user in the irradiation area to determine whether the user is in a relaxed state or a non-relaxed state. When it is detected that the user is in a relaxed state, the lighting mode can be switched to a relaxing light mode.

[0071] Furthermore, the scene detection model can be used to identify both the objects in the irradiation area and the user's posture. During operation, the objects in the irradiation area can be identified first, and the usage scene can be determined based on the identified objects. Secondly, after a period of time (for example, 10 minutes), the user's posture information in the irradiation area can be identified, and the usage scene can be further determined based on the user's posture information.

[0072] Next, at step S304, the target light mode corresponding to the usage scenario is determined. The corresponding light mode is selected from the preset light modes according to the identified usage scenario. For example, the corresponding light mode can be selected according to the desktop items and the user's posture. If the current usage scenario is not identified, the automatic mode can also be selected to automatically dim according to the ambient light. In some embodiments, in the light modes preset by the lighting device, different light modes can have different lighting parameters, and the lighting parameters may include illumination and color temperature. For example, in the online class light mode, the illumination can be 300-400Lux, and the color temperature can be 4800K. In the homework light mode, the illumination can be 450-652Lux, and the color temperature can be 4800K. In the painting light mode, the illumination can be 700-750Lux, and the color temperature can be 4200K. In the relaxation light mode, the illumination can be 250-350Lux, and the color temperature can be 3100K. In automatic brightness mode, the illumination can be 500-700Lux, and the color temperature can be the last color temperature or adjusted manually.

[0073] Then, at step S305, the current light mode is compared with the target light mode. Finally, at step S306, in response to the current light mode not matching the target light mode, the current light mode is adjusted to the target light mode. By comparing and determining whether the current light mode has changed, and switching the light mode when it has changed, the problem of frequent light flickering caused by frequent light mode switching can be effectively avoided, thereby reducing the impact on the user.

[0074] Combination of the above Figure 3 The method for automatically dimming a lighting device in some embodiments of the present invention is described in detail. The selection and switching of the lighting mode can be realized by the above method. Before, during and after switching to the target lighting mode, the lighting parameters in each lighting mode can be further adjusted to realize a more accurate and personalized dimming solution.

[0075] Figure 4 A flow chart of a method 400 for automatically dimming according to ambient light information and / or visible light reflectivity according to an embodiment of the present invention is schematically shown.

[0076] like Figure 4 As shown, before, during or after the current lighting mode is switched to the target lighting mode, the lighting parameters in the target lighting mode may be further corrected to achieve more accurate dimming. In some embodiments, the lighting parameters in the target lighting mode may be adjusted using ambient light information. In other embodiments, considering that light not only exists in direct but also reflected conditions, if the illumination is adjusted only based on the direct light of the light source, the adjusted light will not be consistent with what the human eye actually sees, and the eye protection effect cannot be achieved. Therefore, the visible light reflectance may be used to adjust the lighting parameters in the target lighting mode. Furthermore, the lighting parameters in the target lighting mode may be adjusted based on the ambient light information and the visible light reflectance. The lighting parameters may include illumination and color temperature.

[0077] Specifically, at step S401, ambient light information of the illuminated area may be obtained, and the illumination parameters in the target light mode may be adjusted according to the ambient light information. For example, a lighting standard in a standard laboratory environment may be first defined. When the user turns on the light, a detector (e.g., an RGB sensor) installed on the lighting device is used to detect the ambient light, and then the light is adjusted according to the value of the ambient light. The adjustment range may be limited to a certain range, such as ±20% of the current setting.

[0078] Alternatively, at step S402, the visible light reflectivity of the irradiated area may be obtained, and the visible light reflectivity in the target light mode may be corrected according to the detected visible light reflectivity. In this example, considering that lighting equipment such as desk lamps are usually placed on a desktop, a solution for correcting the reflected light of the lamp based on the desktop reflectivity is proposed to ensure that the light reflected into the human eye is reasonably comfortable.

[0079] Optionally, in step S403, ambient light information of the illuminated area may be obtained, and the illumination parameters in the target light mode may be adjusted according to the ambient light information. After adjusting the illumination parameters according to the ambient light, in step S404, the visible light reflectance of the illuminated area may be obtained, and the visible light reflectance in the target light mode may be corrected according to the visible light reflectance. Through the correction strategies of illumination parameters in these three different target light modes, the current light may be made more suitable for the actual use scenario on site, thereby achieving a more accurate dimming process.

[0080] The following Figure 4 Some possible exemplary implementations of each step are further described.

[0081] In the embodiment of dimming based on desktop reflectivity, the desktop reflectivity can be determined in a variety of ways. In one example, since visible light reflectivity involves the reflection of light, different colors and color depths will determine the degree of light reflection, and different materials will also affect the degree of light reflection. The inventor has verified the reflectivity of different colors and materials through a large number of experiments, and based on this, the desktop reflectivity can be determined according to the color and material of the user's desktop.

[0082] In another example, the reflectivity of the desktop can be determined each time through real-time detection and calculation. For example, the light reflection information at different times can be detected during the light change process when the lighting device is turned on. Then, based on the light reflection information at multiple different times, the visible light reflectivity of the illuminated area is determined. For example, after the user turns on the desk lamp, the light will slowly light up linearly, and the whole process takes about 3 seconds. During this light change process, the illumination of the light slowly changes from 20% to 40%, for example. The detector (such as an RGB sensor) can be used to detect the detection value when the light is 20%, and the detection value when the light is 40%. Then, a pre-trained neural network model can be used to calculate the reflectivity of the current desktop based on the values ​​of the two detections. The following table lists the situations in which the corresponding reflectivity values ​​are calculated based on the detection values ​​detected by the RGB sensor (RGB Sensor) during the light change process:

[0083] model Color Temperature Illuminance 1 Illuminance 2 Detection value Reflectivity 1 Any value 20 60 53-55 0-0.6 2 Any value 20 60 65-99 0.7-0.9 3 Any value 20 60 109-141 1.0-1.2 4 Any value 20 60 151-178 1.3-1.5 5 Any value 20 60 188-211 1.6-10

[0084] Next, the visible light reflectance in the current lighting mode is corrected according to the visible light reflectance. Specifically, the compensation value of the lighting parameter in the target lighting mode can be determined according to the visible light reflectance. Next, the lighting parameters in the lighting mode can be adjusted according to the compensation value of the lighting parameters to correct the visible light reflectance to a predetermined range. This dimming solution based on the desktop reflectance considers the brightness of light from the perspective of the human eye and completely eliminates the difference between light irradiating the desktop and reflecting back to the human eye. Moreover, suitable and comfortable lighting can be provided under different desktop materials and colors to ensure the comfort of the incoming light.

[0085] The above content explains that ambient light and visible light reflectivity will affect the lighting conditions, so the lighting parameters in the target lighting mode can be corrected according to the ambient light information and visible light reflectivity. However, in addition to the influence of objective factors such as the environment, the human eye is not a standardized product and may have different perceptions of the same light, that is, the user's subjective factors will also have a certain impact on the lighting effect. Based on this, the inventor believes that the user's visual characteristics can also be used as a basis for dimming, thereby providing a more personalized setting for the lighting device.

[0086] Figure 5 A schematic diagram of a method 500 for correcting a dimming process according to user visual characteristics according to another embodiment of the present invention is schematically shown.

[0087] In this embodiment, dimming according to the user's visual characteristics may include two aspects: on the one hand, the dimming curve during the light change process may be adjusted according to the user's visual characteristic information; on the other hand, the standard value of the lighting parameter in each light mode may be adjusted according to the visual characteristic information. Specifically, Figure 5 As shown, at step S501, the visual feature information of the user is obtained, and the dimming curve in the light change process is adjusted according to the visual feature information of the user. In some embodiments, the light change process may include any one or more of the following: a light turning on change process, a light turning off change process, and a switching process of different light modes. By setting a dimming curve suitable for individual differences in the light change process, the discomfort of the human eye to the dimming process can be reduced, and the user experience can be effectively improved. In addition to the above-mentioned method of adjusting the dimming curve in the light change process, at step S502, the visual feature information of the user can be obtained, and the standard value of the lighting parameter in each light mode can be adjusted according to the visual feature information of the user.

[0088] Alternatively, in step S503, the visual feature information of the user is obtained to adjust the dimming curve in the process of light change according to the visual feature information of the user, and then in step S504, the standard value of the lighting parameter in each light mode is adjusted according to the visual feature information of the user, thereby achieving comprehensive adjustment of the dimming curve and the standard value of the lighting parameter of the light mode. It should be noted that the execution order of step S503 and step S504 is not limited, and those skilled in the art can set it according to needs, and the two can be executed simultaneously or in an alternate order.

[0089] The following Figure 5 Some possible exemplary implementations of each step are further described.

[0090] The visual characteristics of the human eye can include multiple aspects, such as the perception characteristics of light and shade, the perception characteristics of color, the perception characteristics of space, and the temporal perception characteristics of light stimulation. These visual characteristics of the human eye can be detected by certain testing methods. For example, the color block test method can effectively identify the color preferences of different users, that is, the perception characteristics of the human eye to color. For another example, the contrast sensitivity test method can effectively identify the user's visual sensitivity, that is, the perception characteristics of the human eye to light and shade.

[0091] In some embodiments, when adjusting the standard value of the lighting parameters in each lighting mode according to the visual feature information of the user, the user's perception information of different colors or the perception information of the brightness of different colors can be obtained, and the standard value of the lighting parameters in each lighting mode can be adjusted according to the perception information of different colors or the perception information of the brightness of different colors. Through the user's sensitivity to different colors and different color brightness, the dimming process of the lighting device can be set according to the individual differences of the user, so as to achieve a more personalized dimming process of the lighting device, thereby providing the user with more suitable lighting.

[0092] In addition, the user's spatial perception characteristics can also be obtained to adjust the standard value of the lighting parameters in each lighting mode according to the spatial perception characteristics. For example, the spatial resolution of the human eye is ≤12LP / mm, and the grayscale resolution is 64 levels. The corresponding standard value of the lighting parameter can be set according to the specific situation of the human eye's spatial characteristics.

[0093] Furthermore, the user's light stimulation time perception characteristics can also be obtained, and the color temperature in the lighting mode can be adjusted according to the user's light stimulation time perception characteristics, where the light stimulation time perception characteristics can be the duration of continuous eye fatigue. For example, after using lighting equipment for a period of time, the human eye will also produce a certain sense of fatigue due to continuous use of the eyes. It can be set to increase the color temperature in about 20 minutes to stimulate the human eye to improve eye concentration. The color temperature can also be lowered to relieve fatigue after more than 40 minutes. The time here and the amplitude of increasing or decreasing the color temperature can be set according to the light stimulation time perception characteristics of different users.

[0094] Exemplary Devices

[0095] After introducing the method of the exemplary embodiment of the present invention, next, refer to Figure 6 Related products of the lighting device according to the exemplary embodiment of the present invention are described.

[0096] Figure 6 Schematically shows a schematic diagram of a lighting device 600 according to an embodiment of the present invention. Figure 6 As shown, the lighting device 600 may include an image acquisition unit 601, a lighting unit 602 and a processing unit 603. The image acquisition unit 601 may be configured to acquire an image of the illumination area of ​​the lighting unit 602. The image acquisition unit 601 here may be a camera. In practical applications, the image acquisition unit 601 may be integrated with the lighting device, or may be separately set (when separately set, it may communicate and interact with the lighting through wired or wireless communication). The lighting unit 602 may be configured to provide illumination. The processing unit 603 may be configured to be connected to the image acquisition unit and the lighting unit, and may be configured to identify the use scenario of the illumination area according to the image, determine the target light mode corresponding to the use scenario, and then set the current light mode to the target light mode. The processing unit 603 may be a CPU or a CPU+GPU, etc., to support image recognition operations.

[0097] Figure 7 Schematically shows a schematic diagram of a lighting device 700 according to another embodiment of the present invention. It should be noted that the lighting device 700 can be understood as Figure 6 Therefore, the above combined with the function of the lighting device 600 Figure 6 The relevant description of lighting equipment also applies below.

[0098] like Figure 7As shown, the processing unit 703 may include an ambient light dimming unit 703-1, a reflectivity dimming unit 703-2, a first correction unit 703-3 and a second correction unit 703-4. The ambient light dimming unit 703-1 may be configured to obtain ambient light information of the illuminated area, and adjust the lighting parameters in the target lighting mode according to the ambient light information. The reflectivity dimming unit 703-2 may be configured to obtain the visible light reflectivity of the illuminated area, and correct the visible light reflectivity in the target lighting mode according to the visible light reflectivity. The first correction unit 703-3 may be configured to obtain visual feature information of the user, and adjust the dimming curve during the lighting change process according to the visual feature information of the user. The second correction unit 703-4 may be configured to obtain visual feature information of the user, and adjust the standard value of the lighting parameters in each lighting mode according to the visual feature information of the user. The image acquisition unit 701 and the lighting unit 702 may have Figure 6 The functions and configurations of the image acquisition unit and the illumination unit are described.

[0099] In addition, the processing unit 703 can also be configured to obtain the user's light stimulation time perception characteristics, and adjust the color temperature in the light mode according to the user's light stimulation time perception characteristics, wherein the light stimulation time perception characteristics include the duration of continuous eye fatigue. In this way, the automatic dimming process in different usage scenarios can be realized, effectively improving the user experience.

[0100] Figure 8 A schematic block diagram of a device 800 according to an embodiment of the present invention is schematically shown. Figure 8 As shown, the device 800 may include a processor 801 and a memory 802. The memory 802 stores computer instructions for implementing automatic dimming of the lighting device. When the computer instructions are executed by the processor 801, the device 800 executes the above-mentioned steps in combination with the above-mentioned steps. Figures 2 to 5 For example, in some embodiments, the device 800 can perform recognition of usage scenarios in an image, switching of light modes, correction of lighting parameters, etc. Based on this, the accuracy of the dimming process of the lighting device can be effectively improved through the device 800.

[0101] In some implementation scenarios, the device 800 may include an integrated device with lighting and image acquisition functions (such as a smart learning desk lamp, etc.), or an improved split device (such as a lighting device with lighting and dimming functions + a terminal with a camera function). The solution of the present invention does not limit the structural design that the device 800 may have.

[0102] It should be noted that although several devices or sub-devices for realizing automatic dimming of lighting equipment are mentioned in the above detailed description, such division is not mandatory. In fact, according to the embodiment of the present invention, the features and functions of two or more devices described above can be embodied in one device. Conversely, the features and functions of one device described above can be further divided to be embodied by multiple devices.

[0103] In addition, although the operations of the method of the present invention are described in a specific order in the accompanying drawings, this does not require or imply that the operations must be performed in this specific order, or that all the operations shown must be performed to achieve the desired results. On the contrary, the steps depicted in the flow chart can be performed in a different order. Additionally or alternatively, some steps can be omitted, multiple steps can be combined into one step, and / or one step can be decomposed into multiple steps.

[0104] The use of the verbs "comprise", "include" and their conjugations mentioned in the application documents does not exclude the presence of elements or steps other than those recorded in the application documents. The article "a" or "an" before an element does not exclude the presence of a plurality of such elements.

[0105] Although the spirit and principle of the present invention have been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and this division is only for the convenience of expression. The present invention is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims. The scope of the attached claims conforms to the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A method for realizing automatic dimming of a lighting device, characterized in that: include: Acquire an image of an illumination area of ​​the lighting device; identifying a usage scenario of the irradiation area according to the image; Determining a target lighting mode corresponding to the usage scenario; as well as Set the current lighting mode to the target lighting mode; Acquiring ambient light information of the illumination area, and adjusting illumination parameters in the target light mode according to the ambient light information, wherein the illumination parameters include illumination and color temperature; and / or Obtaining the visible light reflectivity of the irradiated area, and correcting the visible light reflectivity in the target light mode according to the visible light reflectivity, Wherein obtaining the visible light reflectance of the irradiated area comprises: During the light change process when the lighting device is turned on, detecting the light reflection information at different times; and Determining the visible light reflectivity of the irradiated area according to the light reflection information at multiple different times; The correcting the visible light reflectance in the current lighting mode according to the visible light reflectance includes: Determining a compensation value of a lighting parameter in the target lighting mode according to the visible light reflectance; and The illumination parameters in the lighting mode are adjusted according to the compensation value of the illumination parameters to correct the visible light reflectivity to a predetermined range.

2. The method according to claim 1, characterized in that The use scenario of identifying the irradiation area according to the image includes: Detecting the image using a scene detection model to obtain information about objects and / or user posture in the light irradiation area; and A usage scenario is determined according to the object information and / or the user posture information.

3. The method according to claim 1, characterized in that Determining the target lighting mode corresponding to the usage scenario includes: According to the usage scenario, a target lighting mode is selected from preset lighting modes, wherein the preset lighting modes include one or more of the following: Manual mode, automatic brightness mode, online class light mode, homework light mode, painting light mode and relaxation light mode.

4. The method according to claim 1, characterized in that: The step of setting the current lighting mode to the target lighting mode includes: comparing the current light mode to the target light mode; and In response to the current light mode not matching the target light mode, adjusting from the current light mode to the target light mode.

5. The method according to claim 1, characterized in that Also includes: Acquiring visual feature information of a user, and adjusting a dimming curve during a light change process according to the visual feature information of the user; and / or The user's visual characteristic information is obtained, and the standard value of the lighting parameters in each lighting mode is adjusted according to the user's visual characteristic information, wherein the lighting parameters include illumination and color temperature.

6. The method according to claim 5, characterized in that Wherein adjusting the standard value of the illumination parameter in each lighting mode according to the visual characteristic information of the user comprises: Acquiring user's perception information of different colors or perception information of brightness of different colors, and adjusting the standard value of lighting parameters in each lighting mode according to the perception information of different colors or perception information of brightness of different colors; and / or The user's spatial perception characteristics are obtained, and the standard values ​​of the lighting parameters in each lighting mode are adjusted according to the spatial perception characteristics.

7. The method according to claim 5, characterized in that The lighting change process includes any one or more of the following: Turn on the light change process; Turn off lights change process; and The process of switching between different lighting modes.

8. The method according to claim 1, characterized in that Also includes: The user's light stimulation time perception characteristics are obtained, and the color temperature in the lighting mode is adjusted according to the user's light stimulation time perception characteristics, wherein the light stimulation time perception characteristics include the duration of continuous eye fatigue.

9. A lighting device, characterized in that: include: an image acquisition unit configured to acquire an image of an illumination area of ​​the lighting device; a lighting unit configured to provide illumination; A processing unit, which is configured to be connected with the image acquisition unit and the illumination unit, and is configured to: identifying a usage scenario of the irradiation area according to the image; Determining a target lighting mode corresponding to the usage scenario; as well as Set the current lighting mode to the target lighting mode; The processing unit comprises: an ambient light dimming unit configured to obtain ambient light information of the illumination area and adjust illumination parameters of the target light mode according to the ambient light information, wherein the illumination parameters include illumination and color temperature; and / or a reflectivity dimming unit configured to obtain the visible light reflectivity of the illumination area and to modify the visible light reflectivity in the target light mode according to the visible light reflectivity; The reflectivity dimming unit is specifically configured as follows: During the light change process when the lighting device is turned on, detecting the light reflection information at different times; and Determining the visible light reflectivity of the irradiated area according to the light reflection information at multiple different times; The reflectivity dimming unit is specifically configured as follows: Determining a compensation value of a lighting parameter in the target lighting mode according to the visible light reflectance; and The illumination parameters in the lighting mode are adjusted according to the compensation value of the illumination parameters to correct the visible light reflectivity to a predetermined range.

10. The lighting device according to claim 9, characterized in that The processing unit is specifically configured as follows: Detecting the image using a scene detection model to obtain information about objects and / or user posture in the light irradiation area; and A usage scenario is determined according to the object information and / or the user posture information.

11. The lighting device according to claim 9, characterized in that Determining the target lighting mode corresponding to the usage scenario includes: According to the usage scenario, a target lighting mode is selected from preset lighting modes, wherein the preset lighting modes include one or more of the following: Manual mode, automatic brightness mode, online class light mode, homework light mode, painting light mode and relaxation light mode.

12. The lighting device according to claim 9, characterized in that The processing unit is specifically configured to: comparing the current light mode to the target light mode; and In response to the current light mode not matching the target light mode, adjusting from the current light mode to the target light mode.

13. The lighting device according to claim 9, characterized in that The processing unit further includes: a first correction unit configured to obtain visual feature information of the user, and adjust the dimming curve during the light change process according to the visual feature information of the user; and / or The second correction unit is configured to obtain visual feature information of the user, and adjust the standard value of the lighting parameters in each lighting mode according to the visual feature information of the user, wherein the lighting parameters include illumination and color temperature.

14. The lighting device according to claim 13, characterized in that The second correction unit is specifically configured as follows: Acquiring user's perception information of different colors or perception information of brightness of different colors, and adjusting the standard value of lighting parameters in each lighting mode according to the perception information of different colors or perception information of brightness of different colors; and / or The user's spatial perception characteristics are obtained, and the standard values ​​of the lighting parameters in each lighting mode are adjusted according to the spatial perception characteristics.

15. The lighting device according to claim 13, characterized in that The lighting change process includes any one or more of the following: Turn on the light change process; Turn off lights change process; and The process of switching between different lighting modes.

16. The lighting device according to claim 9, characterized in that The processing unit is further specifically configured to: The user's light stimulation time perception characteristics are obtained, and the color temperature in the lighting mode is adjusted according to the user's light stimulation time perception characteristics, wherein the light stimulation time perception characteristics include the duration of continuous eye fatigue.

17. A lighting device, characterized in that: include: processor; as well as A memory storing computer instructions for realizing automatic dimming of a lighting device, wherein when the computer instructions are executed by the processor, the device executes the method according to any one of claims 1 to 8.

18. A computer-readable storage medium, characterized in that: The invention comprises program instructions for realizing automatic dimming of a lighting device, and when the program instructions are executed by a processor, the method according to any one of claims 1 to 8 is realized.

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