Method, device and system for dynamically adjusting the lighting environment for myopic children

Abstract

The present invention relates to the field of healthy lighting technology, and provides a method, device and system for dynamically adjusting the lighting environment for myopic children, so as to solve the problem that the prior art cannot effectively provide healthy lighting for myopic children. The method comprises: obtaining the current behavior state and lighting environment of the target child in the children's room, and when the target child wears glasses, adding the lighting correction factor related to the glasses to the naked eye adjustment coefficient of the target child to obtain the first adjustment coefficient U1 for adjusting the light source at present; according to the lighting environment, determining the second adjustment coefficient U2 for adjusting the light source at present; according to the first adjustment coefficient U1 and the second adjustment coefficient U2, combined with the lighting gradient strategy, determining the adjustment parameters of the light source; and adjusting the light source according to the adjustment parameters of the light source. The present invention more accurately adjusts the light source parameters to adapt to the individual's visual needs to achieve smooth lighting transition, and provides a more coherent healthy lighting experience for myopic children.

Description

Technical Field

[0001] The present invention relates to the field of healthy lighting technology, and in particular to a method, device and system for dynamically adjusting the lighting environment for myopic children. Background Art

[0002] At present, with the improvement of people's living standards, people are paying more and more attention to health, among which healthy lighting has become a very popular topic in the current lighting field. The so-called healthy lighting is based on visual and non-visual effects, improves the quality of the light environment, and helps people's physiological and mental health. The family health lighting system is mainly used in two places commonly used by users, such as the living room and bedroom. Now due to the decline in global fertility, the phenomenon of low birth rate is prominent. Families are very concerned about all aspects of children's physical and mental health. Many families set up special children's rooms for children to study, play and rest. Children's rooms have become a very important lighting place for children's healthy growth. Many parents will make a lot of personalized decorations in the children's rooms according to their preferences, and place children's furniture and toys. However, there are relatively few studies or technical innovations on healthy lighting for children's rooms in the prior art, and the technology is not smart enough. For example, in the prior art, Korean patent KR101334212B1 discloses a children's room management system, which discloses that the color and brightness of the required lighting should be controlled for the mode in which the child is in the children's room. These modes are divided into learning mode, rest mode, sleep mode, etc., and different lighting schemes are used in different modes. However, the above-mentioned prior art only adopts a fixed lighting solution based on the characteristics of children in various modes, without taking into account the characteristics of the children's room environment in which the children are located.

[0003] There is also a Chinese patent CN108055745A that discloses a lighting system suitable for children's rooms, including a controller, a photoelectric coupler, a bulb, a power supply, a first variable resistor, and a compensation unit. The input end of the controller is connected to the power supply and the photoelectric coupler, the output end of the controller is connected to the first variable resistor, and the compensation unit is connected between the controller and the bulb. The controller controls the first variable resistor to adjust the light to a comfortable brightness. When the power supply voltage changes, the brightness of the bulb changes. The photoelectric coupler senses the change in light intensity and converts the light intensity at this time into a current signal, which is transmitted to the controller. The controller readjusts the first variable resistor to restore the brightness of the bulb, solving the problem that the traditional lighting system will change due to voltage changes. Too high or too low voltage will cause the light to be turned off too bright or too dark, thereby hurting people's eyes and affecting vision. This only considers the impact of voltage changes on children's vision from a hardware perspective. This type of hardware improvement does not take into account the changes in children's behavior in the children's room. The light source adjustment is manually achieved through a variable resistor.

[0004] In addition, CN211959615U discloses an intelligent healthy lighting system for a children's room, including a lighting fixture, the lighting fixture includes a housing and a light-emitting module installed inside the housing, a distance is left between the light-emitting module and the light-emitting end of the housing to form a filter cavity, and a filter film for filtering blue light and a fixing component for fixing the filter film are arranged in the filter cavity. The light emitted by the light-emitting module will be filtered by the filter film before being emitted from the housing, thereby reducing the harm to the human body when the lighting fixture emits light. Here, the main consideration is the harm of blue light in the children's room, and the filter film filters out the blue light.

[0005] Therefore, from the above-mentioned existing technologies, the research on healthy lighting technology in children's rooms is not only not in-depth enough, but also does not take into account the changes in the current family. Especially in recent years, with the popularization of electronic products, the number of children with myopia has also increased greatly. Myopia is an abnormal refraction of the eyes, which causes distant objects to be blurred. Myopic children need to concentrate their vision for a long time in activities such as reading, writing and using electronic devices at close range, which may aggravate their myopia. Because the existing healthy lighting mode is single in adjustment, there are still defects such as blue light problems, lack of unified standards, high cost, individual differences and other environmental factors.

[0006] Therefore, how to provide healthy lighting for myopic children effectively and intelligently is an urgent problem to be solved. Summary of the invention

[0007] The present invention provides a method, device and system for dynamically adjusting the lighting environment for myopic children, so as to solve the technical problem in the prior art that it is impossible to effectively and intelligently provide healthy lighting for myopic children.

[0008] In a first aspect, the present invention provides a method for dynamically adjusting the lighting environment for myopic children, characterized in that the method comprises:

[0009] Acquire the current behavior state and lighting environment of the target child in the children's room, wherein the behavior state includes at least one of the following states: learning, entertainment and sleeping state, and the lighting environment includes: lighting intensity, environment clarity and space color information;

[0010] When the target child wears glasses, the first adjustment coefficient U1 for adjusting the light source is obtained by adding the illumination correction factor related to the glasses to the naked eye adjustment coefficient for adjusting the light source corresponding to the target child not wearing glasses;

[0011] Determine a second adjustment coefficient U2 for currently adjusting the light source according to the lighting environment;

[0012] When the child switches between different behavior states in the child room, the adjustment parameters of the light source are determined according to the first adjustment coefficient U1 and the second adjustment coefficient U2 in combination with the light gradient strategy;

[0013] The light source is adjusted according to the adjustment parameters of the light source.

[0014] Preferably, obtaining the current behavior state and lighting environment of the target child in the children's room includes:

[0015] Get the real-time photo of the children's room and convert it into an HSV channel image;

[0016] The behavior state and lighting environment are determined according to the HSV channel image, wherein the HSV channel image includes: hue H, saturation S and brightness V, and the color information is obtained by calculating the average brightness of channel S in the HSV image; the lighting intensity is obtained by calculating the average brightness of the current V channel.

[0017] Preferably, when the target child wears glasses, adding a glasses-related illumination correction factor to the naked eye adjustment coefficient of the light source corresponding to the target child being in a behavior state of not wearing glasses comprises:

[0018] When the target child wears the glasses, determining whether the current behavior state of the target child is in the sleeping state or the non-sleeping state;

[0019] When the target child is in a non-sleeping state, determining whether the target child is currently in a learning state or an entertainment state;

[0020] If the target child is in a learning state, the illumination correction factor is a constant illumination correction factor;

[0021] If the target child is in an entertainment state, the illumination correction factor is a linearly varying illumination correction factor.

[0022] Preferably, the first adjustment coefficient U1 is calculated by multiplying the average brightness of channel V or the average saturation of channel S by a weight coefficient, including:

[0023] Identify whether the current behavior state of the target child in the children's room is a learning activity. If the behavior state is a learning activity, a weight coefficient a is added to the average brightness of the V channel, where a>1; if the behavior state is a non-learning activity, a=1, where a ranges from 1.0 to 1.15;

[0024] Identify whether the current behavior state of the target child in the children's room is entertainment activities. If the behavior state is entertainment activities, a weight coefficient b is added to the average brightness of the V channel, where b>1; if the behavior state is not entertainment activities, b=1, where the value range of b is 1.0~1.1;

[0025] Identify whether the current behavior state of the target child in the children's room is resting. If the behavior state is resting, a weight coefficient c is added to the average brightness of the V channel, where c < 1; a weight coefficient d is added to the average saturation S, where d < 1; if the behavior state is not resting, c = 1, d = 1, where the value range of c is 0.85-0.95, and the value range of d is 0.80-0.95.

[0026] Preferably, determining the second adjustment coefficient U2 for currently adjusting the light source according to the lighting environment includes:

[0027] Obtaining the light intensity of the current lighting environment and the color information of the indoor wall;

[0028] The second adjustment coefficient is obtained according to the light intensity and the color information according to a pre-constructed mapping table of the lighting environment and the second adjustment coefficient U2, wherein the mapping table is a one-to-one correspondence between the second adjustment coefficient and a weighted combination of the first weights of multiple light intensity data and the second weights of various colors.

[0029] Preferably, when the child switches between different behavior states in the child room, determining the adjustment parameters of the light source according to the first adjustment coefficient U1 and the second adjustment coefficient U2 in combination with the lighting gradient strategy includes:

[0030] When the target child switches between different behavior states in the children's room, a mathematical model is constructed based on multiple sets of data obtained in advance using big data methods;

[0031] The gradual change decision of the light source is obtained according to the mathematical model, and the adjustment parameters of the light source are determined by combining the first adjustment coefficient U1 and the second adjustment coefficient U2.

[0032] Preferably, when the target child wears glasses, before obtaining the first adjustment coefficient for adjusting the light source, the method further includes:

[0033] Determine whether the target child wears glasses in the current behavior state;

[0034] When the target child is not wearing glasses and the target child is in a sleeping state, turning off the light source;

[0035] When the target child enters a sleeping state, the sleep duration of the target child is compared with a preset duration, and when the difference between the preset duration and the sleep duration is within a preset threshold range, the light source is started.

[0036] Preferably, the method further comprises:

[0037] When there are more than two children, determine the current behavior status of all children;

[0038] According to the children's current behavior status, prioritize learning and entertainment in the behavior status;

[0039] When there are children in learning activities, children wearing glasses are used as target children;

[0040] When there are no children in learning activities, children wearing glasses among children in recreational activities are used as target children.

[0041] In a second aspect, the present invention provides a device for dynamically adjusting the lighting environment for myopic children, wherein the device comprises:

[0042] A behavior and environment determination module, used to obtain the current behavior state and lighting environment of the target child in the children's room, wherein the behavior state includes at least one of the following states: learning, entertainment and sleeping state, and the lighting environment includes: light intensity, environment clarity and space color information;

[0043] A first adjustment coefficient determination module is used for, when the target child wears glasses, adding a light correction factor related to glasses to the naked eye adjustment coefficient of adjusting the light source corresponding to the behavior state of the target child not wearing glasses, to obtain a first adjustment coefficient for adjusting the light source;

[0044] A second adjustment coefficient determination module, used to determine a second adjustment coefficient U2 currently used to adjust the light source according to the lighting environment;

[0045] A light source adjustment parameter determination module, used to determine the light source adjustment parameters according to the first adjustment coefficient U1 and the second adjustment coefficient U2 in combination with the light gradient strategy when the child switches between different behavior states in the child room;

[0046] The light source adjustment module is used to adjust the light source according to the adjustment parameters of the light source.

[0047] In a third aspect, the present invention further provides a system for dynamically adjusting the lighting environment for myopic children, wherein the system comprises:

[0048] A light source for providing lighting in a child's room;

[0049] An image acquisition device, used to collect the behavior status of children in the children's room and the environment information in the children's room;

[0050] A controller, wherein the controller uses the above-mentioned method for dynamically adjusting the lighting environment for myopic children to control the operation of the light source and the image acquisition device.

[0051] The present invention provides a method, device and system for dynamically adjusting the lighting environment for myopic children. The method comprises: obtaining the current behavior state and lighting environment of a target child in a child's room, wherein the behavior state includes at least one of the following states: learning, entertainment and sleeping state, and the lighting environment includes: lighting intensity, environmental clarity and spatial color information; when the target child wears glasses, adding a lighting correction factor related to the glasses to the naked eye adjustment coefficient of the adjusted light source corresponding to the behavior state of the target child without wearing glasses, to obtain a first adjustment coefficient U1 for currently adjusting the light source; according to the lighting environment, determining a second adjustment coefficient U2 for currently adjusting the light source; when the child switches between different behavior states in the child's room, determining the adjustment parameters of the light source according to the first adjustment coefficient U1 and the second adjustment coefficient U2, combined with a lighting gradient strategy; and adjusting the light source according to the adjustment parameters of the light source. Since the eye conditions and visual needs of myopic children may be different, the present invention more accurately adjusts the light source parameters to adapt to the individual's visual needs based on the naked eye adjustment coefficient of the adjusted light source when the target child wears glasses plus the glasses-related illumination correction factor; at the same time, when children switch between different behavioral states, sudden changes in illumination may cause visual discomfort. By combining the illumination gradient strategy and determining the adjustment parameters of the light source according to the first adjustment coefficient and the second adjustment coefficient, a smooth illumination transition can be achieved, discomfort can be reduced, and a more coherent lighting experience can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0053] Figure 1 A schematic flow chart of the method for dynamically adjusting the lighting environment for myopic children provided by the present invention.

[0054] Figure 2 This is a schematic diagram of a scene when a target child is entertaining in a child's room in Example 1 of the present invention.

[0055] Figure 3 This is a schematic diagram of a scene when a target child is studying in a children's room in Example 1 of the present invention.

[0056] Figure 4 This is a schematic diagram of a scene when a target child is sleeping in a child's room in Example 1 of the present invention.

[0057] Figure 5 Schematic diagram of the structure of the device for dynamically adjusting the lighting environment for myopic children in Example 2 of the present invention.

[0058] Figure 6 This is a schematic diagram of the structure of the lighting environment dynamic adjustment system for myopic children in Example 3 of the present invention. DETAILED DESCRIPTION

[0059] The invention is described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that, if there is no conflict, the embodiments of the invention and the various features in the embodiments can be combined with each other, all within the protection scope of the invention.

[0060] The main idea of ​​the present invention is to combine visual sensors (image acquisition devices) to conduct a comprehensive analysis of the behavior status and lighting environment of children in the children's room in view of the complex usage environment in the children's room.

[0061] In order to cope with the special place of children's room, the present invention combines the image processing method to intelligently perceive the current lighting conditions and children's behavior status in the children's room, and converts the perceived lighting conditions and children's behavior status into specific data through the conversion data obtained in advance and transmits them to the healthy lighting system. The light source parameters in the scene are controlled in a personalized and quantitative manner according to whether the children wear glasses (taking into account the eye characteristics of children's myopia) and other conditions, so that different children can study, entertain and rest under a stable and healthy lighting source.

[0062] The main solutions of the present invention are as follows:

[0063] The present invention provides a method for dynamically adjusting the lighting environment for myopic children. The children's room here mainly refers to children between the ages of 3 and 18. Parents of children in this age group do not need to accompany them all the time, so they can study, entertain and rest in the children's room according to their own preferences. In this process, providing a healthy lighting source is very beneficial to the healthy growth of children, especially for the protection of children's eyesight. Please refer to Figure 1 , the method comprising:

[0064] S1: Obtain a photo of a child's room taken in real time and convert it into an HSV channel image; preferably, a high-definition camera is used to take the photo.

[0065] S2: Determine the current behavior state and lighting environment of the target child in the children's room based on the HSV channel image. The behavior state includes: in the current scene, the target child is in at least one of the following states: learning, entertainment, and resting (including sleeping) in the children's room. The lighting environment mainly includes: the current light intensity and color information in the children's room; the lighting environment may also include scene clarity.

[0066] S3: Determine the first adjustment coefficient U1 for adjusting the light source according to the current behavior state of the target child; the first adjustment coefficient U1 here is a data combination, mainly including: the respective weight coefficients of learning, entertainment, and sleep, and the weight coefficient of whether the target child wears glasses.

[0067] S4: Determine the second adjustment coefficient U2 for adjusting the light source according to the current lighting environment of the target child; the second adjustment coefficient U2 here is a data combination, mainly including: some coefficients related to the luminous flux, illumination, light intensity, brightness, color temperature and color rendering of the light source.

[0068] S5: Determine adjustment parameters of the light source according to the first adjustment coefficient U1 and the second adjustment coefficient U2; the adjustment parameters here mainly include light source intensity, light source brightness, color temperature, color rendering index and luminous flux, etc. These indicators are relatively well known in the field of light source lighting and will not be further expanded here.

[0069] S6: Adjust the light source according to the adjustment parameters of the light source.

[0070] The present invention considers the behavior state of children in the children's room and the lighting environment of children, and adopts a combination of the first adjustment coefficient U1 and the second adjustment coefficient U2 to determine the adjustment parameters of the light source, so as to make targeted adjustments to the healthy lighting mode of children, and the operation is realized in an intelligent manner. Parents can let their children study, entertain and sleep in the children's room environment with greater peace of mind, without worrying about the impact of the light source on children in different behavior states. The adjustment of the light source not only considers the behavior state of children, but also makes intelligent decisions on the control of the light source in combination with the actual environment of the children's room, so as to avoid the harm of light to vision (especially children who are already myopic) and life and health, better meet the actual needs, and significantly improve people's living and health standards.

[0071] Example 1

[0072] To further understand the technical advantages of the healthy lighting system of the present invention in the children's room when they are in the three states of entertainment, learning and sleeping, please refer to Figures 2 to 4 , Example 1 of the present invention further discusses the above method in detail, as follows:

[0073] In the children's room, a camera 2 and a light source 3 are arranged around the target child 1 as image acquisition devices. Here, the lighting system is mainly schematically illustrated, so the camera 2 and the light source 3 are arranged separately. In actual products, they can be integrated with a controller to control the operation of the light source 3 and the camera 2. The controller can be a remote control or a mobile terminal, and no further restrictions are made here. Figure 2 , Figure 3 and Figure 4 , you can see the behavior changes of the target child 1 in the children's room. When entertaining, the child will be in a cheerful and relaxed mood. At this time, the lighting parameters can be appropriately adjusted to the first light intensity and the first color temperature so that the light source can set off the atmosphere. The first light intensity and the first color temperature here can use warm colors, such as about 3000K to 3500K, and the brightness is relatively bright. When the target child is studying, the lighting parameters can be adjusted to the second light intensity and the second color temperature. Here, the main purpose is to allow the child to concentrate on studying. The second color temperature can be adjusted to between 5500K and 6000K, and 6000K cold white is better. When the child is resting, it can be adjusted to about 4000K, close to natural light. Preferably, the natural light at this time is as consistent as possible with the outdoor natural light, which is more in line with the human body's biological rhythm. When the child rests and falls asleep, the light source is automatically turned off.

[0074] After obtaining the behavior state of the target child in the children's room and the lighting environment of the children's room in the above step S2, in the above step S3, determining the first adjustment coefficient U1 for adjusting the light source according to the current behavior state of the target child includes:

[0075] determining whether the target child wears glasses;

[0076] If the target child wears glasses, then the first adjustment coefficient U1 for adjusting the light source is obtained by adding the illumination correction factor related to the glasses to the naked eye adjustment coefficient of the light source corresponding to the target child not wearing glasses.

[0077] Preferably, if the target child wears glasses, the first adjustment coefficient U1 for adjusting the light source is obtained by adding a light correction factor related to glasses to the naked eye adjustment coefficient of adjusting the light source corresponding to the behavior state of the target child not wearing glasses, including:

[0078] Determine whether the target child wears glasses in the current behavior state;

[0079] Determining a naked eye adjustment coefficient of the target child to adjust the light source without wearing glasses;

[0080] determining whether the current behavioral state of the target child is a sleeping state or a non-sleeping state;

[0081] When the target child is in a non-sleeping state, determining whether the target child is currently in a learning state or an entertainment state;

[0082] If the target child is in a learning state, a constant illumination correction factor in the illumination correction factor associated with the glasses is applied;

[0083] If the target child is in an entertainment state, the illumination correction factor associated with the glasses is linearly changed.

[0084] Preferably, the method of determining the first adjustment coefficient U1 for adjusting the light source according to the current behavior state of the target child also includes:

[0085] If the target child is not wearing glasses and enters a sleep state, turn off the light source; when the target child enters a sleep state, compare the sleep duration of the target child with a preset duration, and when the difference between the preset duration and the sleep duration is within a preset threshold range, start the light source. At this time, the first light source adjustment coefficient U1 changes linearly, gradually increasing the light intensity of the light source so that the target child wakes up naturally when the preset duration is reached under the irradiation of the light source.

[0086] Preferably, the determining of the second adjustment coefficient U2 for adjusting the light source according to the current lighting environment of the target child includes:

[0087] Obtaining the light intensity of the current lighting environment and the color information of the indoor wall;

[0088] The second adjustment coefficient is obtained according to the light intensity and the color information according to a pre-constructed mapping table between the light environment and the second adjustment coefficient U2.

[0089] Preferably, the mapping table establishes a one-to-one correspondence between the first weights of a plurality of illumination intensity data and the second weights of various colors after weighted combination and the second adjustment coefficient.

[0090] Preferably, the HSV channel image includes: hue H, saturation S and brightness V, wherein H has a value range of 0° to 180°, saturation S has a value range of 0 to 1, and brightness V has a value range of 0 to 255. The color information is obtained by calculating the average brightness of channel S in the HSV image, and the calculation formula is as follows:

[0091] W1=Sum(Mi*N(i))

[0092] Where Mi is the S channel value, expressed as a floating point value between 0 and 1, and N(i) is the number of points in the image with a saturation of Mi.

[0093] The light intensity in the adjustment parameter is obtained by calculating the average brightness W1 of the current V channel, and the specific calculation formula is as follows:

[0094] W2=Sum(Pi*Q(i))

[0095] Where Pi is the pixel value in the V channel, expressed as an integer pixel value from 0 to 255, and Q(i) is the number of points in the image corresponding to the pixel value Pi.

[0096] Preferably, the first adjustment coefficient U1 is calculated as follows:

[0097] (1) If the target child’s current behavior in the children’s room is identified as learning activity, considering that learning requires strong lighting, in the HSV channel image, the average brightness of the V channel needs to be increased, and a weight coefficient a is added to the average brightness, where a>1. If no learning activity is identified, a=1. The adjusted light brightness is calculated as:

[0098] Wnew=W1×a

[0099] The optimal value range of a is between 1.0 and 1.15.

[0100] (2) If the target child is identified as engaging in recreational activities in the children's room, the light intensity also needs to be increased. Therefore, a weight coefficient b is added to the average brightness of the V channel, where b>1. If no recreational activities are identified, b=1. The adjusted light intensity is calculated as:

[0101] Wnew=W1×b

[0102] The optimal value range of b is between 1.0 and 1.1, which can better meet the atmosphere of entertainment activities.

[0103] (3) If it is recognized that the child is resting (including sleeping), the brightness of the children's room is relatively bright and will affect the child's rest. In this case, the lighting brightness can be reduced. Therefore, a weight coefficient c is added to the brightness of the V channel, where c < 1. Since the flames of rest are mainly blue and yellow, the saturation S in the HSV channel has a positive increase. A weight coefficient d is added to the average saturation, where d < 1. If the rest activity is not recognized, c = 1, d = 1, and the adjusted average brightness is:

[0104] Wnew=W1×c

[0105] Snew=S×d

[0106] Here, c is generally set in the range of 0.85 to 0.95, and d is generally preferably set in the range of 0.80 to 0.95.

[0107] In addition, for some scenes, the clarity of indoor scenes must also be considered, because when the captured image is not clear, it will be detrimental to the processing of the subsequent HSV channel image. For clarity, the main consideration is to calculate the Sobel edge image of the V channel image and calculate the average grayscale value S of the Sobel edge image. The Sobel edge image is obtained by convolution operation of the image using a 3×3 Sobel operator. Among them, the image with an average grayscale value S greater than or equal to 1.0 is a clear image, and the corresponding coefficient e calculation method is:

[0108] if S≥1,e=1

[0109] if S<1,e=0.9

[0110] Here, when the image is clear, it means that the lighting in the scene is uniform, there is no obvious strong reflection or local astigmatism, the adjustment coefficient is 1, and there is no need to modify the image; when it is blurry, it is necessary to reduce the brightness of the scene, reduce the reflection or astigmatism intensity, and the adjustment coefficient e is less than 1.

[0111] Preferably, the adjustment formula of the HSV channel is as follows:

[0112] if S≥1.5×Sstd,S=Sstd

[0113] else S=W2×d

[0114] if V≥1.5×Vstd, V=Vstd

[0115] else V=W1×a×b×c×e

[0116] Among them, Sstd and Vstd are standard values ​​calculated after multiple tests under lighting conditions.

[0117] In one embodiment, based on the relationship between the light source parameters and the HSV channel, the calculation method adopts a function relationship f1(S) between the average brightness value of the S channel and the current corresponding light source color temperature value and a function relationship f2(V) between the V channel value and the current corresponding light source brightness value under different lighting and color temperature conditions.

[0118] In one embodiment, the pictures collected in the children's room need to be classified, and the classification method preferably uses a Resnet classification model to classify and judge the scenes in the children's room.

[0119] Preferably, the learning, entertainment and rest activities use a method based on picture classification to calculate the current adjustment coefficient U1.

[0120] In the embodiment of the present invention, when adjusting the light source parameters, the color temperature and brightness value may be mainly considered to be adjusted, and the corresponding brightness and color temperature values ​​may be obtained by using the aforementioned f1(S) and f2(V) calculations.

[0121] In addition, due to the natural liveliness of children, the present invention also has a gradual change process for the adjustment parameters of the light source when the child switches between different behavior states in the child's room. The gradual change here can make a more accurate light source gradual change decision based on the change of behavior state and whether the child wears glasses. The decision here is an intelligent decision, which can be based on obtaining multiple groups of data in advance using big data, constructing a mathematical model, and then making a gradual change decision of the light source based on the mathematical model. Here, the present invention is used to explain the light source adjustment for healthy lighting under a full-spectrum light source.

[0122] When it is determined that the target child changes from learning activities to entertainment activities, the direct conversion from the second light intensity and the second color temperature to the first light intensity and the first color temperature will be obviously uncomfortable to the eyes, and this forced hard switch will also affect the entertainment activities. In order to solve this problem, the light source of the present invention is a full-spectrum light source. Under the second light intensity and the second color temperature, the second color temperature is first adjusted to gradually decrease and transition to the first color temperature within the first predetermined time, and then the second light intensity is also adjusted accordingly within the second predetermined time. It can also be adjusted simultaneously, but at this time there are several discrete combinations of light intensity and color temperature in the middle, but the combination changes of two adjacent discrete light intensities and color temperatures are within the range that the human eye cannot obviously perceive.

[0123] In one embodiment, when there are more than two children, only one of them can be selected as the target child unless all of them are in a resting or sleeping state, which is the first judgment condition. The present invention proposes a method for determining the target child that can be accepted by most people:

[0124] Determine the current behavioral status of all children;

[0125] According to the children's current behavior status, prioritize learning and entertainment in the behavior status;

[0126] When there are children in learning activities, children wearing glasses are used as target children;

[0127] When there are no children in learning activities, children wearing glasses among children in recreational activities are selected as target children. This selection can ensure that all children benefit from vision.

[0128] Example 2

[0129] Based on the above-mentioned embodiment 1 and the discussion of the related healthy lighting method, embodiment 2 of the present invention provides a device for dynamically adjusting the lighting environment for myopic children, the device comprising:

[0130] The image acquisition module 10 is used to acquire the children's room photo taken in real time and convert it into an HSV channel image;

[0131] The behavior and environment determination module 20 is used to determine the current behavior state and lighting environment of the target child in the children's room according to the HSV channel image, wherein the behavior state includes at least one of the following states: the target child is studying, entertaining, and sleeping in the children's room in the current scene, and the lighting environment includes the current light intensity, environment clarity, and spatial color information in the children's room;

[0132] A first adjustment coefficient determination module 30, used to determine a first adjustment coefficient U1 for currently adjusting the light source according to the current behavior state of the target child;

[0133] A second adjustment coefficient determination module 40, which determines a second adjustment coefficient U2 for adjusting the light source according to the current lighting environment of the target child;

[0134] A light source adjustment parameter determination module 50, configured to determine the light source adjustment parameters according to the first adjustment coefficient U1 and the second adjustment coefficient U2;

[0135] The light source adjustment module 60 is used to adjust the light source according to the adjustment parameters of the light source.

[0136] The present invention determines the behavior state of children in the children's room and the lighting environment of children through the behavior and environment determination module, and adopts the combination of the first adjustment coefficient determination module and the second adjustment coefficient determination module to determine the adjustment parameters of the light source, so as to make targeted adjustments to the healthy lighting mode of children, and the operation is realized in an intelligent manner. Parents can let their children study, entertain and sleep in the children's room environment with greater confidence, without worrying about the impact of the light source on children in different behavior states, and the adjustment of the light source not only considers the behavior state of children, but also makes intelligent decisions on the control of the light source in combination with the actual environment of the children's room, so as to avoid the harm of light to vision (especially children who are already myopic) and life and health, better meet the actual needs, and significantly improve people's living and health level.

[0137] Example 3

[0138] See also Figure 6The present invention provides a system for dynamically adjusting the lighting environment for myopic children, wherein the system comprises: a lighting source with adjustable light source parameters; a camera for collecting images of the children's room environment; a controller for controlling the brightness of the lighting source and the camera for collecting images of the children's room environment, wherein the system adopts the method for dynamically adjusting the lighting environment for myopic children described in Example 1.

[0139] The lighting system may include a processor and a memory storing computer program instructions.

[0140] Specifically, the processor may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present invention.

[0141] The memory may include a large capacity memory for data or instructions. By way of example and not limitation, the memory may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory may include a removable or non-removable (or fixed) medium. Where appropriate, the memory may be inside or outside a data processing device. In a particular embodiment, the memory is a non-volatile solid-state memory. In a particular embodiment, the memory includes a read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM) or a flash memory or a combination of two or more of these.

[0142] The processor implements any one of the methods for dynamically adjusting the lighting environment for myopic children in the above embodiments by reading and executing computer program instructions stored in the memory.

[0143] In one example, the system may further include a communication interface and a bus, wherein the processor, the memory, and the communication interface are connected via the bus and communicate with each other.

[0144] The communication interface is mainly used to implement communication between the modules, devices, units and / or equipment in the embodiments of the present invention.

[0145] Bus includes hardware, software or both, and the parts of xxxx equipment are coupled to each other.For example, but not limitation, bus may include accelerated graphics port (AGP) or other graphics bus, enhanced industrial standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industrial standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In suitable cases, bus may include one or more buses. Although the embodiment of the present invention describes and shows specific bus, the present invention considers any suitable bus or interconnection.

[0146] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0147] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0148] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

[0149] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A method for dynamically adjusting the lighting environment for myopic children, characterized in that: The method comprises: Obtain the current behavior state and lighting environment of the target child in the children's room, wherein the behavior state The state includes: in the current scene, the target child is in at least one of the following states: studying, entertaining, resting, and sleeping in the children's room; the lighting environment includes: lighting intensity, environment clarity, and spatial color information; When the target child wears glasses, the first adjustment coefficient U1 for adjusting the light source is obtained by adding the illumination correction factor related to the glasses to the naked eye adjustment coefficient for adjusting the light source corresponding to the target child not wearing glasses; Determine a second adjustment coefficient U2 for currently adjusting the light source according to the lighting environment; When the child switches between different behavior states in the child room, the adjustment parameters of the light source are determined according to the first adjustment coefficient U1 and the second adjustment coefficient U2 in combination with the light gradient strategy; The light source is adjusted according to the adjustment parameters of the light source; wherein the obtaining of the current behavior state and lighting environment of the target child in the children's room includes: Get the real-time photo of the children's room and convert it into an HSV channel image; Determine the behavior state and lighting environment according to the HSV channel image, wherein the HSV channel image includes: hue H, saturation S and brightness V, the color information is obtained by calculating the average brightness of channel S in the HSV image; the lighting intensity is obtained by calculating the average brightness of the current V channel; The calculation method of the first adjustment coefficient U1 is to multiply the average brightness of channel V or the average saturation of channel S by the weight coefficient, including: Identify whether the current behavior state of the target child in the children's room is a learning activity. If the behavior state is a learning activity, a weight coefficient a is added to the average brightness of the V channel, where a>1; if the behavior state is a non-learning activity, a=1, where a ranges from 1.0 to 1.15; Identify whether the target child's current behavior in the children's room is entertainment activities. If the behavior is entertainment activities, add a weight coefficient b to the average brightness of the V channel, where b>1; if the behavior is not entertainment activities, b=1, where the value range of b is 1.0~1.1; Identify whether the current behavior state of the target child in the children's room is resting. If the behavior state is resting, add a weight coefficient c to the average brightness of the V channel, where c<1, and the value range of c is 0.85~0.95; add a weight coefficient d to the average saturation S, where d<1, and the value range of d is 0.80~0.95; if the behavior state is not resting, then c=1, d=1.

2. The method for dynamically adjusting the lighting environment for myopic children according to claim 1, characterized in that: When the target child wears glasses, adding the glasses-related illumination correction factor to the naked eye adjustment coefficient of the light source corresponding to the target child not wearing glasses comprises: When the target child wears the glasses, determining whether the current behavior state of the target child is in the sleeping state or the non-sleeping state; When the target child is in a non-sleeping state, determining whether the target child is currently in a learning state or an entertainment state; If the target child is in a learning state, the illumination correction factor is a constant illumination correction factor; If the target child is in an entertainment state, the illumination correction factor is a linearly varying illumination correction factor.

3. The method for dynamically adjusting the lighting environment for myopic children according to claim 1, characterized in that: The determining, according to the lighting environment, a second adjustment coefficient U2 for currently adjusting the light source comprises: Get the light intensity of the current lighting environment and the color information of the indoor walls; The second adjustment coefficient is obtained according to the light intensity and the color information according to a pre-constructed mapping table of the lighting environment and the second adjustment coefficient U2, wherein the mapping table is a one-to-one correspondence between the second adjustment coefficient and a weighted combination of the first weights of multiple light intensity data and the second weights of various colors.

4. The method for dynamically adjusting the lighting environment for myopic children according to claim 1, characterized in that: When the child switches between different behavior states in the child room, the adjustment parameters of the light source are determined according to the first adjustment coefficient U1 and the second adjustment coefficient U2 in combination with the light gradient strategy, including: When the target child switches between different behavior states in the children's room, a mathematical model is constructed based on multiple sets of data obtained in advance using big data methods; The gradual change decision of the light source is obtained according to the mathematical model, and the adjustment parameters of the light source are determined by combining the first adjustment coefficient U1 and the second adjustment coefficient U2.

5. The method for dynamically adjusting the lighting environment for myopic children according to claim 1, characterized in that: When the target child wears glasses, before obtaining the first adjustment coefficient for adjusting the light source, the method further includes: Determine whether the target child is wearing glasses in the current behavior state; When the target child is not wearing glasses and the target child is in a sleeping state, turning off the light source; When the target child enters a sleeping state, the sleep duration of the target child is compared with a preset duration, and when the difference between the preset duration and the sleep duration is within a preset threshold range, the light source is started.

6. The method for dynamically adjusting the lighting environment for myopic children according to claim 1, characterized in that: The method further comprises: When there are more than two children, determine the current behavior status of all children; According to the children's current behavior status, prioritize learning and entertainment in the behavior status; When there are children in learning activities, children wearing glasses are used as target children; When there are no children in learning activities, children wearing glasses among children in recreational activities are used as target children.

7. A device for dynamically adjusting the lighting environment for myopic children, characterized in that: The device comprises: The behavior and environment determination module is used to obtain the current behavior state and lighting environment of the target child in the children's room, wherein the behavior state includes: at least one state of the target child studying, entertaining, resting, and sleeping in the children's room in the current scene, and the lighting environment includes: light intensity, environment clarity, and spatial color information; A first adjustment coefficient determination module is used for, when the target child wears glasses, adding a light correction factor related to glasses to the naked eye adjustment coefficient of adjusting the light source corresponding to the behavior state of the target child not wearing glasses, to obtain a first adjustment coefficient for adjusting the light source; A second adjustment coefficient determination module, used to determine a second adjustment coefficient U2 currently used to adjust the light source according to the lighting environment; A light source adjustment parameter determination module, used to determine the light source adjustment parameters according to the first adjustment coefficient U1 and the second adjustment coefficient U2 in combination with the light gradient strategy when the child switches between different behavior states in the child room; A light source adjustment module, used to adjust the light source according to the adjustment parameters of the light source; Wherein, obtaining the current behavior state and lighting environment of the target child in the children's room includes: Get the real-time photo of the children's room and convert it into an HSV channel image; Determine the behavior state and lighting environment according to the HSV channel image, wherein the HSV channel image includes: hue H, saturation S and brightness V, the color information is obtained by calculating the average brightness of channel S in the HSV image; the lighting intensity is obtained by calculating the average brightness of the current V channel; The calculation method of the first adjustment coefficient U1 is to multiply the average brightness of channel V or the average saturation of channel S by the weight coefficient, including: Identify whether the current behavior state of the target child in the children's room is a learning activity. If the behavior state is a learning activity, a weight coefficient a is added to the average brightness of the V channel, where a>1; if the behavior state is a non-learning activity, a=1, where a ranges from 1.0 to 1.15; Identify whether the target child's current behavior in the children's room is entertainment activities. If the behavior is entertainment activities, add a weight coefficient b to the average brightness of the V channel, where b>1; if the behavior is not entertainment activities, b=1, where the value range of b is 1.0~1.1; Identify whether the current behavior state of the target child in the children's room is resting. If the behavior state is resting, add a weight coefficient c to the average brightness of the V channel, where c<1, and the value range of c is 0.85~0.95; add a weight coefficient d to the average saturation S, where d<1, and the value range of d is 0.80~0.95; if the behavior state is not resting, then c=1, d=1.

8. A dynamic lighting environment adjustment system for myopic children, characterized in that: The system comprises: A light source for providing lighting in a child's room; An image acquisition device, used to collect the behavior status of children in the children's room and the environment information in the children's room; A controller, wherein the controller uses the method for dynamically adjusting the lighting environment for myopic children as described in any one of claims 1 to 6 to control the operation of the light source and the image acquisition device.

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