Intelligent LED wall lamp brightness adjusting method and intelligent LED wall lamp

Abstract

The present application relates to the field of lighting technology, especially to a kind of intelligent LED wall lamp brightness adjusting method and intelligent LED wall lamp.The intelligent LED wall lamp brightness adjusting method of the present application includes: S1: the reflection coefficient of ceiling is obtained and target brightness is obtained according to dial switch selection signal;S2: according to the target brightness, the light source brightness initial matching of upper light source and lower light source is set;S3: according to the reflection coefficient, the light emitting angle of upper light source and the light emitting angle of lower light source, the light source brightness initial matching is corrected;S4: according to the light source brightness matching after correction and target brightness, the illumination of intelligent LED wall lamp is controlled;S5: according to the real-time heat accumulation of intelligent LED wall lamp, the light source brightness matching is dynamically adjusted.The present application can improve the illumination effect and heat dissipation effect of intelligent LED wall lamp.

Description

TECHNICAL FIELD

[0001] The present application relates to the lighting technical field, especially to a kind of intelligent LED wall lamp brightness adjustment method and intelligent LED wall lamp. BACKGROUND

[0002] With the continuous development of science and technology, LED wall lamp has been widely used in family, office, shopping mall and other places due to its high efficiency, environmental protection, long service life, good lighting effect and other characteristics. However, heat will be generated during the use of LED wall lamp, and if the heat is accumulated around the light emitting element of LED wall lamp for a long time, it will seriously affect the service life of LED wall lamp. At present, the LED lamp gives the LED wall lamp to dissipate heat through the heat dissipation piece to prolong its service life. However, the current LED lamp usually installs the heat dissipation piece, lamp body and power supply together, which makes the heat of the light emitting part and the power supply part affect each other, and cannot obtain good heat dissipation effect. SUMMARY

[0003] Therefore, the embodiments of the present application provide an intelligent LED wall lamp brightness adjustment method and an intelligent LED wall lamp to solve the technical problem of poor heat dissipation effect of the existing intelligent LED wall lamp.

[0004] The technical scheme adopted by the present application is:

[0005] In a first aspect, the present application provides an intelligent LED wall lamp brightness adjustment method, which comprises:

[0006] S1: obtaining the reflection coefficient of the ceiling and the target brightness according to the dial switch selection signal;

[0007] S2: setting the light source brightness initial proportion of upper light source and lower light source according to the target brightness;

[0008] S3: correcting the light source brightness initial proportion according to the reflection coefficient, the light emitting angle of upper light source and the light emitting angle of lower light source;

[0009] S4: controlling the intelligent LED wall lamp lighting according to the corrected light source brightness proportion and the target brightness;

[0010] S5: dynamically adjusting the light source brightness proportion according to the real-time heat accumulation of the intelligent LED wall lamp.

[0011] In a second aspect, the present application provides an intelligent LED wall lamp, which comprises two groups of light source assemblies, a power supply assembly and a hollow main body part, the two groups of light source assemblies are respectively arranged on the opposite sides of the main body part, and the power supply assembly is located on the outside of the main body part.

[0012] The light source assembly comprises a lamp plate, a lens, a glass end cover and a heat dissipation side cover, the lamp plate is provided with a light emitting element, the light emitting element is electrically connected with the power supply assembly, the light emitting element is located on the side of the lamp plate facing the lens, the heat dissipation side cover is located on the side of the lamp plate away from the light emitting element, the heat dissipation side cover is arranged at the end of the main body part, and a side cover waterproof ring is arranged between the side cover and the main body part.

[0013] The power supply assembly comprises a driving voltage and a control circuit, and the control circuit is electrically connected with the driving power supply and the light emitting element respectively.

[0014] The control circuit is used for executing the method of the first aspect.

[0015] Beneficial effects:

[0016] The intelligent LED wall lamp brightness control method of the application first sets the initial light source brightness ratio of the upper light source and the lower light source according to the target brightness, then corrects the initial light source brightness ratio according to the reflection coefficient, the light emitting angle of the upper light source and the light emitting angle of the lower light source, and dynamically adjusts the light source brightness ratio according to the real-time heat accumulation of the intelligent LED wall lamp, which not only ingeniously utilizes the reflection condition of the installation environment of the intelligent LED wall lamp, but also comprehensively controls the light source light emission through the light emitting angles of the upper and lower light sources, thereby improving the lighting effect and reducing the influence of heat accumulation.

[0017] The intelligent LED wall lamp of the application is provided with the heat dissipation side cover on the side of the lamp plate away from the light emitting element in each light source assembly, the heat dissipation side cover has good heat conductivity, and the heat generated by the light emitting element can be rapidly dissipated, and the heat dissipation side cover is located in the main body part, and the power supply assembly is located outside the main body part, that is, the power supply assembly, the light emitting element and the heat dissipation side plate are separated by the main body part, so that the heat generated by the light emitting element and the power supply assembly does not interfere with each other, thereby significantly improving the overall heat dissipation efficiency of the intelligent LED wall lamp. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments of the application will be briefly introduced below, and other drawings can also be obtained by those skilled in the art without creative labor on the premise that these drawings are within the protection scope of the application.

[0019] Figure 1 It is an assembly structure diagram of the intelligent LED wall lamp of the application.

[0020] Figure 2 It is an exploded structure diagram of the intelligent LED wall lamp of the application.

[0021] Figure 3Assembling structure schematic view of power supply assembly of the present application;

[0022] Figure 4 Structure schematic view of power supply cover plate of the present application;

[0023] Figure 5 Three-dimensional structure schematic view of heat dissipation side cover of the present application;

[0024] Figure 6 Flowchart of brightness adjustment method of intelligent LED wall lamp of the present application;

[0025] Figure 7 Flowchart of method of dynamically adjusting light source brightness ratio according to heat accumulation of the present application;

[0026] Figure 8 Flowchart of method of adjusting upper and lower light source brightness according to overheat of the present application;

[0027] Figure 9 Flowchart of method of adjusting power compensation amount according to ambient brightness of the present application;

[0028] Figure 10 Flowchart of method of adjusting output power when light source as a whole is overheated of the present application;

[0029] Figure 11 Flowchart of method of obtaining light source temperature of the present application;

[0030] Figure 12 Flowchart of method of correcting light source temperature according to residual heat of the present application.

[0031] Parts in the figure and their numbers:

[0032] Main body part 1, power supply assembly 2, main body waterproof ring 21, light ray sensor 22, box body 23, protruding part 231, box body waterproof ring 24, dial adjustment plate 25, driving power supply 26, power supply cover plate 27, clamping strip 271, mounting fixed plate 28, first fixed part 281, second fixed part 282, third fixed part 283, waterproof cotton 29, light source assembly 3, side cover waterproof ring 31, heat dissipation side cover 32, recess 321, wiring hole 322, lamp plate 33, lens 34, glass end cover 35. DETAILED DESCRIPTION

[0033] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. It should be noted that, in this document, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or sequence between these entities or operations. In the description of the present application, it should be understood that the orientations or positional relationships indicated by terms such as center, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Moreover, the terms “include”, “contain” or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the elements defined by the statement “include” do not exclude the presence of additional identical elements in the process, method, article or device that includes the elements. If there is no conflict, the embodiments of the present application and the various features in the embodiments can be combined with each other, and all within the scope of protection of the present application.

[0034] Embodiment 1

[0035] As shown in Figure 1 and Figure 2 The present embodiment provides an intelligent LED wall lamp, which comprises two groups of light source assemblies 3, a power supply assembly 2 and a hollow main body part 1. The two groups of light source assemblies 3 are respectively arranged on opposite sides of the main body part 1, and the power supply assembly 2 is located outside the main body part 1.

[0036] The main body part 1 is generally cylindrical, and the two ends of the main body part 1 are provided with openings. The two groups of light source assemblies 3 are respectively installed at the opening positions of the two ends of the main body part 1. The two groups of light source assemblies 3 can be arranged in a symmetrical manner, so that the light distribution of the LED wall lamp is more uniform. Since the two groups of light source assemblies 3 of the present embodiment are symmetrically arranged at the two ends of the main body part 1, the light is uniformly irradiated from both sides, and the light distribution is more uniform after being modulated by the lens 34. Such design can effectively avoid the phenomenon of uneven light or shadow caused by single-side illumination, and is particularly suitable for occasions requiring large-area uniform illumination.

[0037] In the embodiment, each group of light source assembly 3 mainly comprises a lamp plate 33, a lens 34, a glass end cover 35 and a heat dissipation side cover 32. The lamp plate 33 is provided with light emitting elements, which are electrically connected to the power supply assembly 2. The light emitting elements are located on the side of the lamp plate 33 facing the lens 34. The heat dissipation side cover 32 is located on the side of the lamp plate 33 away from the light emitting elements. The heat dissipation side cover 32 covers the end of the main body part 1. A side cover waterproof ring 31 is arranged between the side cover and the main body part 1.

[0038] The light emitted by the light emitting elements is emitted through the modulation of the outer lens 34 and the glass end cover 35. The heat generated by the light emitting elements is quickly dissipated by the inner heat dissipation side cover 32, and thus the heat dissipation effect is better.

[0039] In each group of light source assembly 3, the heat dissipation side cover 32 is located on the side of the lamp plate 33 away from the light emitting elements. The heat dissipation side cover 32 quickly dissipates the heat generated by the light emitting elements to the surrounding environment through the good heat conductivity of the metal material. This design not only prolongs the service life of the LED wall lamp, but also ensures the stability of the lamp in long-time operation. The design of the heat dissipation side cover 32 can also keep the temperature of the lamp within a reasonable range during operation, thereby significantly improving the heat dissipation efficiency.

[0040] The LED wall lamp of the embodiment can also change the optical angle of the LED wall lamp by replacing different lenses 34.

[0041] In the embodiment, the power supply assembly 2 comprises a driving voltage and a control circuit, which are electrically connected to the light emitting elements and the driving power supply 26, respectively.

[0042] The driving power supply 26 can control the illumination and on-off state of the LED wall lamp through the control circuit according to the needs.

[0043] As Figure 3 In the embodiment, the power supply assembly 2 further comprises a power supply box, which comprises a box body 23 and a power supply cover plate 27. The power supply cover plate 27 covers the box body 23. The driving power supply 26 and the control circuit are located in the space enclosed by the box body 23 and the power supply cover plate 27. After adopting the foregoing structure, the driving power supply 26 and the control circuit can be protected by the power supply box, thereby improving the stability of the LED wall lamp.

[0044] As Figure 3 and Figure 4As shown, the power supply assembly 2 further comprises a mounting fixed plate 28, the edge of the side of the power supply cover plate 27 away from the power supply box body 23 extends to form a clamping strip 271, the edge of the mounting fixed plate 28 corresponding to the clamping strip 271 extends outward to form a first fixed part 281, and the first fixed part 281 is clamped into the gap between the clamping strip 271 and the edge of the power supply box body 23. The mounting fixed plate 28 has one edge of the fixed part clamped into the clamping strip 271 and connected with the power supply cover plate 27, and the remaining edges can be fixed with the box body 23 by lock cover plate screws, so that the stability of the installation is ensured, and the disassembly and assembly of the power supply assembly 2 are facilitated.

[0045] The clamping strip 271 is arranged obliquely relative to the edge connected with the clamping strip 271, and the first fixed part 281 is arranged obliquely relative to the edge connected with the clamping strip 271.

[0046] The clamping strip 271 and the first fixed part 281 of the embodiment are arranged obliquely relative to the edge connected with the clamping strip 271, and can be reliably pressed against the clamping strip 271 and the edge connected with the clamping strip 271 through the inclined surface of the oblique arrangement.

[0047] Since the power supply cover plate 27 is firmly connected with the mounting fixed plate 28 through the clamping strip 271, and the first fixed part 281 is clamped into the gap between the clamping strip 271 and the edge of the power supply box body 23, the clamping strip 271 is arranged obliquely relative to the edge, and the tightness is ensured through the inclined surface pressing structure, so that the problem of loosening caused by vibration or impact is avoided, and the disassembly and maintenance in the later stage are facilitated.

[0048] In the embodiment, the side of the mounting fixed plate 28 away from the power supply cover plate 27 is provided with a waterproof cotton 29, and the waterproof cotton 29 is located between the power supply box and the installation wall surface after the LED wall lamp is installed. In the embodiment, the waterproof cotton 29 is arranged outside the power supply cover plate 27, so that the water seepage of the LED wall lamp and the installed wall or ceiling into the power supply box can be effectively prevented. Since the waterproof cotton 29 fills the gap between the power supply box and the installation wall surface, the water seepage through the contact surface of the lamp and the wall into the power supply box can be effectively prevented. The structure design significantly improves the overall protection performance of the wall lamp.

[0049] The embodiment further provides a waterproof ring of the box body 23 at the position where the power supply cover plate 27 contacts the box body 23, so that water cannot enter the power supply box through the position where the box body 23 and the power supply cover plate 27 are connected.

[0050] The outer wall of the main body part 1 is provided with an opening, the side of the power box facing the main body part 1 is provided with a protruding part 231, and the surface of the protruding part 231 facing the main body part 1 is attached to the surface of the main body part 1 at the position of the opening. In this embodiment, a side cover waterproof ring 31 is arranged between the side cover and the main body part 1, and a box body 23 waterproof ring is also arranged at the contact position of the power cover plate 27 and the box body 23. Such a multiple waterproof design can effectively prevent water from entering the inside of the lamp, improve the waterproof performance of the product, and make it suitable for use in various indoor and outdoor environments. It can work normally in a high humidity environment.

[0051] The wires in the power box enter the inside of the main body part 1 through the opening and are electrically connected to the light-emitting elements on the lamp panel 33 inside the main body part 1. In this embodiment, the protruding part 231 on the power box covers the hole, and the shape of the surface of the protruding part 231 facing the main body part 1 is complementary to the shape of the outer wall of the main body part 1. Thus, the surface of the protruding part 231 facing the main body part 1 is better attached to the surface of the main body part 1 at the position of the opening, leaving a gap at the hole position after installation.

[0052] In this embodiment, the surface of the protruding part 231 facing the main body part 1 is provided with a main body waterproof ring 21 for sealing the opening. In this embodiment, the main body waterproof ring 21 fills the gap between the surface of the protruding part 231 facing the main body part 1 and the surface of the main body part 1 after they are attached at the position of the opening, effectively preventing water from entering the main body part 1 from the gap between the two attached positions. Since the protruding part 231 is tightly attached to the surface of the main body part 1 at the position of the opening, and the main body waterproof ring 21 is arranged to seal the opening. This design effectively avoids the problem of water seepage when the wires pass through the opening, ensuring the safety of the electrical components inside the lamp.

[0053] The power assembly 2 also includes a dial adjustment panel 25 electrically connected to the control circuit, wherein the dial adjustment panel 25 includes a dial adjustment switch for adjusting the power of the smart LED wall lamp in a dialing manner and a switch for adjusting the color temperature of the smart LED wall lamp in a dialing manner. Since the brightness of the smart LED wall lamp is positively related to its power, the brightness of the smart LED wall lamp can be adjusted by adjusting its power. In actual use, the power and color temperature of the smart LED wall lamp can be adjusted according to the application scenario by using the dial adjustment switch, so as to adapt to different scene requirements.

[0054] In the embodiment, the power supply assembly 2 further comprises a light sensor 22 electrically connected with the control circuit, and the control circuit controls the LED lamp dial adjustment panel 25 to adjust the power and color temperature of the LED lamp according to the detection signal of the light sensor 22, so that the light effect can be flexibly adjusted according to different application scenarios. The light sensor 22 can automatically adjust the brightness of the LED lamp according to the ambient light, thereby achieving the energy-saving effect. This intelligent function makes the wall lamp not only have good lighting effect, but also has the characteristics of high efficiency and energy saving.

[0055] The two sides of the mounting fixed plate 28 adjacent to the first fixed part 281 are respectively provided with a second fixed part 282 and a third fixed part 283, the second fixed part 282 is inclined relative to the power cover plate 27, the third fixed part 283 is inclined relative to the power cover plate 27, and the second fixed part 282 and the third fixed part 283 are pressed on the power cover plate 27 by the lock cover plate screw connected with the box body 23.

[0056] As shown in Figure 5 The heat dissipation side cover 32 is provided with a groove 321 recessed towards the direction away from the lens 34, the glass plate, the light-emitting plate and the lens 34 are located in the groove 321, and the side of the heat dissipation side cover 32 away from the lens 34 is provided with a wiring hole 322, and the cross section of the wiring hole 322 is rectangular. The connecting lines of the power supply assembly 2 pass through the inside of the main body part 1 and are respectively connected with the light-emitting plate through the wiring hole 322.

[0057] Embodiment 2

[0058] As shown in Figure 7 The embodiment provides a brightness adjustment method of the intelligent LED wall lamp, which is used for controlling the intelligent LED wall lamp of the first aspect, wherein the light-emitting units of the upper light-emitting assembly constitute an upper light source, the light-emitting units of the lower light-emitting assembly constitute a lower light source, and the method comprises the following steps:

[0059] S1: acquiring the reflection coefficient of the ceiling and acquiring the target brightness according to the dial switch selection signal;

[0060] The traditional LED wall lamp lacks consideration of the reflection light effect for different installation positions (such as the height of the ceiling and the distance from the wall), which leads to unreasonable brightness distribution of the upper light source or the lower light source, and affects the lighting effect and user experience. In view of this, the embodiment controls the lighting of the intelligent LED wall lamp according to the reflection of the ceiling. In order to accurately control, the target brightness level (such as 300Lux, 500Lux, 700Lux, etc.) or the "low / medium / high" power can be acquired through the model received by the control circuit after the dial switch is dialed, and then the brightness selected by the user is determined as the target brightness according to the different brightness levels and power levels.

[0061] The ceiling reflection coefficient can be determined in combination with the distance between the light source and the ceiling and the material of the ceiling, and the reflection coefficient can be configured by means of a code dial, a knob, a menu parameter, or a factory setting.

[0062] S2: Set the initial light source brightness ratio of the upper light source and the lower light source according to the target brightness.

[0063] This step can be implemented by setting the initial upper and lower light source brightness ratio according to the target brightness required by the user (for example, 300 Lux, 500 Lux, 700 Lux,...).

[0064] For example, for a low brightness range (such as a brightness level of 300 Lux), because a soft ambient lighting is required at this time, the reflection of the upper light source through the ceiling brings about diffuse light, but is easy to cause glare or unevenness. Therefore, a light emitting brightness ratio that gives more weight to the lower light source can be used:

[0065] For a medium brightness range (such as a brightness level of 500 Lux)

[0066] The user wants both soft ambient light and certain direct lighting. The light source brightness ratio that can be used is: upper: lower ≈ 50%: 50%. In this way, the upper and lower light sources are relatively balanced,

[0067] For a high brightness range (such as a brightness level of 700 Lux):

[0068] In order to ensure higher overall illumination, more direct or semi-direct light is required, and the absolute light output of the upper light source needs to be increased.

[0069] S03: Correct the initial light source brightness ratio according to the reflection coefficient.

[0070] If the reflection coefficient p of the ceiling is large (such as 0.7 or higher), the actual available light after the diffuse reflection of the light emitted by the upper light source through the ceiling will be significantly enhanced. In this case, the proportion of the upper light source can be relatively reduced to avoid the total light from overflowing or being too uniform and reducing the direct light from the lower part.

[0071] For example, the initial upper and lower light source brightness ratio is 70:30, which can be corrected according to the diffuse reflection of the ceiling. The upper and lower light source brightness ratio can be corrected to 60:40, or even to 50:50,

[0072] If the reflection coefficient p of the ceiling is small (such as 0.3 or lower), the reflection of the ceiling on the upper light source is not significant, and the environment cannot obtain sufficient light through the reflection of the upper part. Accordingly, the proportion of the upper light source needs to be increased to achieve the required brightness. For example, the initial upper and lower light source brightness ratio is 50:50, which can be corrected to 60:40 or 65:35,

[0073] The initial upper and lower light source brightness ratio can also be corrected according to the following formula:

[0074] K2=K1×f(ρ), wherein K1 is the initial upper and lower light source brightness ratio, K2 is the corrected upper and lower light source brightness ratio, and f(ρ) is a function negatively or positively related to the reflection coefficient ρ: f(ρ)=1−α(ρ−0.5).

[0075] Since the light-emitting angle of the light source in the LED lamp also affects the light-emitting effect, the following steps can be used to correct the light-emitting ratio of the upper and lower light sources:

[0076] S3: correcting the initial light source brightness ratio according to the reflection coefficient, the light-emitting angle of the upper light source, and the light-emitting angle of the lower light source

[0077] Specifically, it includes:

[0078] S31: obtaining the light-emitting angle of the upper light source, the installation height of the upper light source, the light-emitting angle of the lower light source, and the installation height of the lower light source;

[0079] The aforementioned parameters of the light source can be obtained through device parameters and the position after installation, including the light-emitting angle α1 of the upper light source and the horizontal installation height H1, the light-emitting angle α2 of the lower light source and the installation height H2, which constitute the basic input for brightness calculation.

[0080] S32: determining the coverage range of the upper light source and the coverage range of the lower light source according to the light-emitting angle of the upper light source, the installation height of the upper light source, the light-emitting angle of the lower light source, and the installation height of the lower light source;

[0081] The coverage radius R1 of the upper light source is H1×tan(α1 / 2), and the coverage radius R2 of the lower light source is H2×tan(α2 / 2),

[0082] S33: determining the effective brightness influence coefficient of the upper light source and the lower light source according to the coverage range and the reflection coefficient;

[0083] In specific implementation, a normalization processing algorithm is used, the upper light source influence coefficient K1 is (1 / R1)×(1+ρ), wherein ρ is the ceiling reflection coefficient; the lower light source influence coefficient K2 is 1 / R2, both of which are inversely proportional to the coverage range, and the upper light source coefficient is additionally positively affected by the reflection coefficient.

[0084] S34: calculating the actual brightness of the upper light source and the actual brightness of the lower light source under the initial ratio according to the influence coefficient;

[0085] The step is to estimate the brightness correction. The actual brightness of the upper light source is L1' = L1 x K1, and the actual brightness of the lower light source is L2' = L2 x K2, where L1 and L2 are initial matching brightness values. The light efficiency loss caused by environmental factors is quantified through the calculation.

[0086] S35: Correct the initial matching according to the actual brightness of the upper light source, the actual brightness of the lower light source, and the target brightness.

[0087] This step uses an iterative optimization algorithm to establish a brightness error function E = (L1' + L2' - L_target)2, where L_target is the target brightness. The initial matching parameters are adjusted by the gradient descent method until the error function value is below the set threshold, and the corrected brightness matching scheme is output.

[0088] S4: Control the intelligent LED wall lamp lighting according to the corrected light source brightness matching and the target brightness;

[0089] After obtaining the target brightness and the corrected light source brightness matching, the brightness of the upper light source and the brightness of the lower light source can be determined according to the target brightness and the corrected light source brightness matching. The intelligent LED lamp finds the corresponding output power of the upper light source and the output power of the lower light source according to the relationship between power and brightness, controls the brightness of the upper light source and the brightness of the lower light source by controlling the output power of the upper and lower light sources, and thus realizes the lighting effect of the target brightness expected by the user.

[0090] S5: Dynamically adjust the light source brightness matching according to the real-time heat accumulation of the intelligent LED wall lamp.

[0091] Since the LED itself generates heat during operation, if the heat cannot be effectively dissipated in time, the light decay of the LED will accelerate and the service life will be shortened. Therefore, this step acquires the heat accumulation of the LED wall lamp in real time when the intelligent LED wall lamp is working, and dynamically adjusts the light emitting proportion of the upper light source and the lower light source according to the heat accumulation, so as to improve the heat dissipation effect of the intelligent LED wall lamp while maintaining the stability of the lighting brightness.

[0092] As shown in Figure 7 , in this embodiment, the S5: dynamically adjusting the light source brightness matching according to the real-time heat accumulation of the intelligent LED wall lamp further includes:

[0093] S51: Acquire the light source temperature of the upper light source and the lower light source;

[0094] Since the temperatures of the light sources reflect the heat accumulation of the light sources, this step can first acquire the temperatures of the upper light source and the lower light source as the basis for adjustment.

[0095] S51: when only one of the upper light source and the lower light source temperature exceeds the heat safety threshold, the overheated light source is taken as the light source to be cooled, and the other light source is taken as the compensation light source;

[0096] In actual use, both the upper light source and the lower light source may be overheated, or only one of the upper light source and the lower light source may be overheated. In order to facilitate the judgment of whether the light source is overheated, a temperature can be set as the heat safety threshold according to experience, and the light source is considered to be overheated when the temperature exceeds the heat safety threshold.

[0097] The overheated light source needs to be cooled quickly, so the overheated light source is also called the light source to be cooled, and the other light source is called the compensation light source.

[0098] S52: reducing the light emitting proportion of the light source to be cooled and correspondingly increasing the light emitting proportion of the compensation light source according to the temperature of the light source to be cooled and the heat safety threshold.

[0099] If the temperature of the intelligent LED lamp on one side exceeds the threshold, part of the load on one side can be transferred to the other side under the premise that the target brightness remains unchanged:

[0100] For example, before adjusting the illumination brightness according to the temperature, the light emitting proportion of the upper light source is 70%, and the light emitting proportion of the lower light source is 30%. When it is obtained that the temperature of the upper light source is too high, the light emitting proportion of the upper light source can be reduced to 60%, and the light emitting proportion of the lower light source can be increased to 40%, that is, part of the light emitting proportion of the upper light source is transferred to the lower light source, so that the same total power or illumination output can be maintained unchanged.

[0101] Affected by the ceiling reflection factor, the contribution of the upper light source to the final environmental brightness under the same input power is often different from that of the lower light source. If the light emitting proportions of the upper and lower light sources are directly adjusted according to the temperature and the heat safety threshold, for example, the light emitting proportion of the upper light source in the foregoing example is changed from 70% to 60%, and the light emitting proportion of the lower light source is changed from 30% to 40%, and the total power remains unchanged, the actual overall brightness may increase or decrease, and the brightness cannot be truly unchanged.

[0102] As shown in Figure 8 To this end, in the embodiment, the S53: reducing the light emitting proportion of the light source to be cooled and correspondingly increasing the light emitting proportion of the compensation light source according to the temperature of the light source to be cooled and the heat safety threshold further comprises:

[0103] The light emitting proportion of the light source further comprises:

[0104] S531: obtaining the overheating amount according to the temperature of the light source to be cooled and the heat safety threshold;

[0105] The overheating amount is the difference between the temperature of the light source to be cooled and the heat safety threshold.

[0106] S532: determining a target reduction amount of the light-emitting proportion of the light source to be cooled according to the overheat amount, the current light-emitting proportion of the light source to be cooled, the minimum light-emitting proportion, and the maximum light-emitting proportion of the compensation light source;

[0107] If the overheat amount is large, it indicates that a larger proportion of light-emitting energy needs to be transferred; if the difference is not large, only a small proportion of light-emitting energy needs to be transferred. Therefore, the larger the overheat amount, the larger the target reduction amount of the light-emitting proportion of the light source to be cooled.

[0108] Since the light-emitting proportion of the light source to be cooled cannot be negative or extremely small, the determination of the target reduction amount needs to satisfy that the light-emitting proportion of the light source to be cooled is greater than a set value required, i.e., the minimum light-emitting proportion. In addition, if the light-emitting proportion of the compensation light source is too high, it will affect the uniformity of illumination and also cause the compensation light source to overheat due to excessive power. Therefore, the maximum light-emitting proportion of the compensation light source is set, and the light-emitting proportion of the compensation light source after correction cannot be greater than the maximum light-emitting proportion of the compensation light source when the target reduction amount is determined.

[0109] S533: determining a power compensation amount of the compensation light source according to the reflection coefficient of the ceiling, the current brightness of the LED intelligent wall lamp, and the target reduction amount;

[0110] The reflection coefficient of the ceiling can cause the upper light source to generate more additional light gain than the lower light source.

[0111] For example, after the power of the upper light source is partially transferred to the lower light source, the new brightness of the intelligent LED lamp can be obtained. If the new brightness is lower than the original brightness, the total power needs to be slightly increased; if the new brightness is higher than the original brightness, the total power can be slightly reduced, and the increase or decrease of the total power is the power compensation amount;

[0112] In order to adapt to different lighting needs, the embodiment can also adjust the light-emitting angle of the light source by adjusting the distance between the lens and the light source, for example, by driving the lens to move towards or away from the light source in a straight line to adjust the light-emitting angle of the light source. For such an intelligent LED wall lamp with adjustable light-emitting angle, the S533: determining a power compensation amount and a light-emitting angle adjustment amount of the compensation light source according to the reflection coefficient of the ceiling, the current brightness of the LED intelligent wall lamp, and the target reduction amount further comprises:

[0113] Obtaining the current output power, the current light-emitting angle, the power adjustment range, and the light-emitting angle adjustment range of the compensation light source; wherein the power adjustment range and the light-emitting angle adjustment range are inherent parameters of the LED lamp.

[0114] Determining a plurality of light source adjustment strategies according to the target reduction amount;

[0115] The light source adjustment strategies include but are not limited to:

[0116] Strategy (1): reduce the overheat light source power by ΔP and reduce its light emitting angle by Δθ;

[0117] Strategy (2): reduce the overheat light source power by ΔP and increase the compensation light source power by ΔP_comp (ΔP_comp = ηΔP, η is the reflection coefficient correction factor) by the same proportion;

[0118] Strategy (3): adjust the overheat light source power by ΔP and adjust the power or light emitting angle of the compensation light source;

[0119] Strategy (4): reduce the overheat light source power and reduce the overheat light beam angle, and at the same time adjust the power or angle of the compensation light source.

[0120] According to the power adjustment interval and the light emitting angle adjustment interval, the adjustment effect of various light source adjustment strategies is evaluated; specifically, it can be evaluated from the following aspects:

[0121] (a) Temperature safety (whether it can quickly reduce the risk of overheating);

[0122] (b) Brightness or light efficiency maintenance (impact on overall or local lighting);

[0123] (c) Device adjustment margin (whether it exceeds the power or angle limit of the compensation light source)

[0124] According to the evaluation results, one of the several light source adjustment strategies is selected as the target adjustment strategy;

[0125] The combination scheme that can compensate for brightness and quickly reduce temperature in the case of small light efficiency change can be selected.

[0126] According to the heat dissipation capacity of the intelligent LED wall lamp, the current heat, the difference between the relevant light source parameters determined by the target adjustment strategy and the current light source parameters, and the smooth adjustment curve of the power and / or angle is obtained;

[0127] Combined with the heat sink thermal resistance parameter and the real-time temperature sampling data, a transition curve is generated using a Sigmoid function to ensure that the power adjustment slope is less than a preset value and the angle change rate is less than a preset value, avoiding mechanical impact and light flickering

[0128] According to the smooth adjustment curve, the power and / or angle of the intelligent LED wall lamp is adjusted.

[0129] This step completes the gradual switching of parameters according to the smooth adjustment curve, and finally makes the system stable at the target working point.

[0130] This embodiment uses a multi-strategy dynamic adjustment mechanism that combines power and angle coordinated control to ensure the cooling rate while avoiding sudden changes in illuminance caused by traditional single power reduction, thereby improving the accuracy of temperature control.

[0131] S534: Adjust the total power of the LED smart wall lamp according to the power compensation amount, and adjust the brightness of the light source to be cooled and the compensation light source according to the target reduction amount.

[0132] For example, before adjustments based on heat accumulation, the initial light source brightness ratio was: 70% for the upper light source, 30% for the lower light source, and a total power of 20W. If the ceiling is high and the reflectivity is large, the upper light source will significantly contribute to the overall illuminance. After a period of time, the temperature of the upper or lower light source obtained by the system indicates that the heat accumulation has approached the safe threshold, requiring load reduction.

[0133] At this point, the light emission ratio of the upper light source decreases from 70% to 60%. The specific reduction can be determined based on the current temperature and distance threshold.

[0134] If the 10% reduction in the upper light source is added to the lower light source, making its emission ratio 40%, the system can first make a brightness prediction. If the prediction indicates that, compared to the original 20W, adjusting the emission ratio as described above will reduce the overall brightness by approximately 5%, then to compensate for this 5% brightness loss, the system increases the total power from 20W to 21W. After this fine-tuning, the overall brightness predicted again should return to a level with minimal error compared to the original brightness. This way, reducing the upper light source's proportion to 60% alleviates overheating, while increasing the lower light source's proportion to 40% compensates for the brightness loss caused by the reduced upper light source. The total power is slightly higher than before, ceiling reflection still plays a role, but the overall illumination remains near the user-set target brightness.

[0135] As the heat generated by the upper light source decreases, its thermal index may no longer accumulate rapidly over time. If the system detects that the temperature or heat of the lower light source begins to rise, a similar operation can be performed to balance this process.

[0136] like Figure 9 As shown, in this embodiment, step S5: dynamically adjusting the light source brightness ratio based on the real-time heat accumulation of the intelligent LED wall lamp further includes:

[0137] S525: Detects the current ambient illuminance;

[0138] In practice, a light sensor can be used to detect the current ambient illuminance.

[0139] S526: Compare the target brightness with the current ambient illuminance;

[0140] S527: If the target brightness is greater than the current ambient illuminance, then increase the power compensation of the compensation light source;

[0141] If the light sensor reading is lower than the target brightness, it means that the environment is not bright enough. At this time, the compensation of the lower light source can be appropriately increased, or the total power of the whole lamp can be slightly further increased until the reading approaches the target value.

[0142] S528: If the target brightness is less than the current ambient illuminance, then decrease the power compensation of the compensation light source.

[0143] If it is found that the sensor reading is higher than the target brightness, it means that even if the proportion of the upper light source is reduced, the room is still bright, or there is enough natural light outside. The compensation of the lower light source can be appropriately reduced, or the total power can be reduced to achieve energy saving effect;

[0144] And, after the initial light source brightness and initial ratio are just executed, the system can compare the light sensor readings for a short time: whether the ambient illuminance is still greatly different from the target brightness, and then obtain the measurement value of the light sensor again after adjustment. If the ambient illuminance returns to the allowed interval of the target brightness (for example, a brightness interval of 5% up and down of the target brightness), the adjustment is stopped; if it is still greatly different, the small step adjustment is continued.

[0145] The embodiment can assist in correcting the brightness deviation caused by load transfer or external light changes at any time with the help of the ambient brightness detected by the light sensor, and ensure that the required illuminance is finally maintained. The user will not perceive obvious light and dark fluctuations.

[0146] If the LED intelligent lamp is provided with a temperature sensor, the temperature of the heat dissipation side cover or the lamp panel can be periodically collected. When the temperature of one side is too high, the system can dynamically adjust the upper and lower light source ratio to avoid overheating and ensure the overall illuminance.

[0147] In the case where no temperature sensor is provided, the current possible temperature level of one side light source can be inferred by "estimation" or "modeling" of the LED heating rule and heat dissipation capacity.

[0148] As shown in Figure 10 In the embodiment, the S5: dynamically adjusting the light source brightness ratio according to the real-time heat accumulation of the intelligent LED wall lamp further comprises:

[0149] S54: When it is detected that the light source temperatures of the upper light source and the lower light source both exceed the heat safety threshold, the overall overheating of the light source is obtained.

[0150] S55: According to the overall overheating, the overall output power of the LED intelligent lamp is reduced.

[0151] If both sides of the light source exceed the safety threshold, the "total power load reduction" mode can be entered to reduce the overall output until the estimated temperature returns to the safety zone.

[0152] As shown in the embodiment, the S51: acquiring the light source temperature of the upper light source and the lower light source further comprises: Figure 11

[0153] S511: acquiring the power of the upper light source and the lower light source in each time period in the on state;

[0154] The heat generation of the LED is positively correlated with its input power, and the power in each time period is acquired in this step, and the aforementioned power is the average power in each time period;

[0155] S512: acquiring the time length of each time period;

[0156] S513: acquiring the cumulative output energy of the upper light source and the lower light source according to the power and the time length of each time period;

[0157] Wherein the output energy of the upper light source and the lower light source is the integral of the respective power with respect to time.

[0158] S514: acquiring the temperature of the upper light source and the lower light source according to the cumulative output of the upper light source and the lower light source.

[0159] Long continuous working time will cause temperature to accumulate continuously, and the temperature rise will be basically stable after reaching a steady state; different gears and the proportion distribution of the upper and lower light sources will cause the heat accumulation speed of the LED modules on both sides to be different. The control circuit determines how long each side of the LED module has been working at a certain power through a timer or a periodical accumulation, so as to obtain the current "estimated temperature" in the estimation model.

[0160] When the LED light source is temporarily turned off or the output power is greatly reduced, the module temperature will gradually decrease, but this process takes time. If the residual heat or cooling time during the shutdown is not considered when it is turned on again, it may cause a large error in the estimated heat, and as Figure 12 As shown in the embodiment, the S511: acquiring the power of the upper light source and the lower light source in each time period in the on state further comprises:

[0161] S5101: recording the shutdown time point and the temperature at shutdown of the light source when the light source is turned off;

[0162] S5102: determining the cooling time length according to the opening time point of the re-opening and the shutdown time point when the light source is turned on again;

[0163] Wherein the cooling time length is the time length of the time period from the shutdown to the opening of the light source, and the temperature of the light source will decrease to a certain extent during this time period. ​

[0164] S5103: determining the residual heat of the light source at the moment when the light source is turned on again according to the temperature of the light source when the light source is turned off and the length of time for cooling.

[0165] wherein the residual heat is the heat of the light source at the moment when the light source is turned on again.

[0166] The S514 further comprises the following steps:

[0167] S515: correcting the temperature of the upper light source and the lower light source according to the residual heat.

[0168] The step takes into account the influence of the residual heat remaining after the temporary stop of the previous work when estimating the temperature of the upper light source and the lower light source, thereby improving the accuracy of temperature estimation.

[0169] The foregoing scheme avoids the situation that the heat of the intelligent LED light is cleared to zero once the light source is turned off or enters low power, thereby causing the device to restart instantly and run at full power after the device is turned off due to overheating, leading to overheating again in a very short time and forming a vicious cycle.

[0170] The foregoing is a detailed introduction to the intelligent LED wall lamp and the brightness adjustment method of the intelligent LED wall lamp provided by the embodiments of the present application.

[0171] It should be noted that the present application is not limited to the specific configurations and processes described above and shown in the drawings. For the sake of brevity, detailed descriptions of well-known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application 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 of the steps, after understanding the spirit of the present application.

[0172] The functional blocks shown in the structural block diagram described above 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 functional card, etc. When implemented in software, the elements of the present application are program or code segments used to perform the required tasks. The program or code segments can be stored in a machine-readable medium or transmitted through a data signal carried in a carrier wave over a transmission medium or communication link. The "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 segments can be downloaded via a computer network such as the Internet, an intranet, etc.

[0173] It should also be noted that the exemplary embodiments mentioned in the present application describe some methods or systems based on a series of steps or devices. However, the present application 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 an order different from the embodiments, or several steps are performed simultaneously.

[0174] The above merely illustrates the specific implementation of the present application. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, module and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described herein. It should be understood that the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be covered within the protection scope of the present application.

Claims

1. A method for adjusting the brightness of an intelligent LED wall lamp, characterized in that, The method includes: S1: Obtain the ceiling's reflectance coefficient and select the target brightness based on the DIP switch signal; S2: Set the initial brightness ratio of the upper and lower light sources according to the target brightness; S3: Correct the initial brightness ratio of the light source based on the reflection coefficient, the emission angle of the upper light source, and the emission angle of the lower light source; S4: Control the intelligent LED wall lamp lighting based on the corrected light source brightness ratio and target brightness; S5: Dynamically adjust the brightness ratio of the light source based on the real-time heat accumulation of the intelligent LED wall lamp; The S5 also includes: S51: Obtain the light source temperatures of the upper and lower light sources; S52: When the temperature of only one of the upper and lower light sources exceeds the thermal safety threshold, the overheated light source is designated as the light source to be cooled down, and the other light source is designated as the compensation light source. S53: Reduce the luminous emission ratio of the light source to be cooled based on its temperature and heat safety threshold, and correspondingly increase the luminous emission ratio of the compensation light source. S53 further includes: S531: Obtain the excess heat based on the temperature of the light source to be cooled and the heat safety threshold; S532: Determine the target reduction amount of the light emission ratio of the light source to be cooled based on the superheat, the current light emission ratio and minimum light emission ratio of the light source to be cooled, and the maximum light emission ratio of the compensating light source; S533: Determine the power compensation amount and light emission angle adjustment amount of the compensating light source based on the ceiling's reflectivity, the current brightness of the LED smart wall light, and the target reduction amount; S534: Adjust the total power of the LED smart wall lamp according to the power compensation amount, and adjust the brightness of the light source to be cooled and the compensation light source according to the target reduction amount; S533 includes: Obtain the current output power, current emission angle, power adjustment range, and emission angle adjustment range of the supplementary light source; Several light source adjustment strategies are determined based on the target reduction amount; The adjustment effects of various light source adjustment strategies are evaluated based on the power adjustment range and the emission angle adjustment range. Based on the evaluation results, one of the several light source adjustment strategies will be selected as the target adjustment strategy. Based on the heat dissipation capacity of the smart LED wall lamp, the current heat, the difference between the relevant light source parameters determined by the target adjustment strategy and the current light source parameters, a smooth adjustment curve for power and / or angle is obtained; The power and / or angle of the smart LED wall lamp are adjusted according to the smoothing adjustment curve. The light source adjustment strategy includes: Strategy (1): Reduce the power of the overheated light source by ΔP and simultaneously reduce its emission angle by Δθ; Strategy (2) Reduce the power of the overheated light source ΔP and increase the power of the compensation light source ΔP_comp in proportion, where ΔP_comp = ηΔP, and η is the reflection coefficient correction factor; Strategy (3) Adjust the power ΔP of the overheated light source and adjust the power or emission angle of the compensation light source; Strategy (4) reduces the power of the overheated light source and narrows the beam angle of the overheated light source, while simultaneously adjusting the power or angle of the compensation light source.

2. The method for adjusting the brightness of an intelligent LED wall lamp according to claim 1, characterized in that, S3 further includes: S31: Obtain the emission angle of the upper light source, the installation height of the upper light source, the emission angle of the lower light source, and the installation height of the lower light source; S32: Determine the coverage area of ​​the upper light source and the coverage area of ​​the lower light source based on the light emission angle of the upper light source, the installation height of the upper light source, the light emission angle of the lower light source, and the installation height of the lower light source. S33: Determine the influence coefficient of the effective brightness of the upper and lower light sources based on the coverage area and the reflection coefficient; S34: Calculate the actual brightness of the upper light source and the actual brightness of the lower light source under the initial ratio based on the influence coefficient; S35: Correct the initial ratio based on the actual brightness of the upper light source, the actual brightness of the lower light source, and the target brightness.

3. The method for adjusting the brightness of an intelligent LED wall lamp according to claim 1, characterized in that, S51 further includes: S511: Obtain the power of the upper and lower light sources at various time periods when the light source is on; S512: Obtain the duration of each time period; S513: Obtain the cumulative output energy of the upper and lower light sources based on the power and duration of each time period; S514: Obtain the temperature of the upper and lower light sources based on the cumulative output energy of the upper and lower light sources.

4. The method for adjusting the brightness of an intelligent LED wall lamp according to claim 3, characterized in that, The S511 further includes: S5101: Record the time when the light source is turned off and the temperature at that time; S5102: When the light source is turned on again, the cooling time is determined based on the turn-on time and the turn-off time. S5103: Determine the residual heat at the moment the light source is turned on again based on the temperature when the light source is turned off and the cooling time; In step S514, after obtaining the temperatures of the upper and lower light sources based on the cumulative output energy of the upper and lower light sources, the following is also included: S515: Correct the temperatures of the upper and lower light sources based on the residual heat.

5. An intelligent LED wall lamp, characterized in that, It includes a power supply assembly, a hollow main body, and two sets of light source assemblies, the two sets of light source assemblies being respectively disposed on opposite sides of the main body, and the power supply assembly being located on the outside of the main body. The light source assembly includes a lamp board, a lens, a glass end cap, and a heat dissipation side cap. A light-emitting element is disposed on the lamp board and is electrically connected to the power supply assembly. The light-emitting element is located on the side of the lamp board facing the lens. The heat dissipation side cap is located on the side of the lamp board away from the light-emitting element. The heat dissipation side cap is disposed on the end of the main body and a side cap waterproof ring is disposed between the heat dissipation side cap and the main body. The power supply assembly includes a driving power supply and a control circuit, wherein the control circuit is electrically connected to the driving power supply and the light-emitting element respectively, and the control circuit is used to perform the method according to any one of claims 1 to 4.

6. The intelligent LED wall lamp according to claim 5, characterized in that, The power supply assembly also includes a power box, which includes a box body and a power cover. The power cover is disposed on the box body, and the drive power supply and the control circuit are located in the space enclosed by the box body and the power cover.

7. The intelligent LED wall lamp according to claim 5, characterized in that, The power assembly also includes a mounting plate, and the edge of the power cover plate extending away from the power box body extends to form a retaining strip. The edge of the mounting plate corresponding to the retaining strip extends outward to form a first fixing part, which is inserted into the gap between the retaining strip and the edge of the power box body. The mounting plate is provided with a second fixing part and a third fixing part on the two sides adjacent to the first fixing part, respectively. The second fixing part is inclined relative to the power cover plate, and the third fixing part is inclined relative to the power cover plate. The second fixing part and the third fixing part are pressed onto the power cover plate by the locking cover plate screw connected to the box body. The locking strip is inclined relative to the edge connected to the locking strip, and the first fixing part is inclined relative to the edge connected to the locking strip. Waterproof cotton is provided on the side of the mounting plate facing away from the power cover plate. A waterproof ring is provided at the position where the power supply cover contacts the box body; The outer wall of the main body is provided with an opening, and the power box is provided with a protrusion on the side facing the main body. The surface of the protrusion facing the main body is in contact with the surface of the main body at the opening position. A waterproof ring is provided on the surface of the protrusion facing the main body, and the waterproof ring is used to seal the opening; The power supply assembly also includes a DIP switch adjustment board, which is electrically connected to the control circuit. The power supply assembly also includes a light sensor, which is electrically connected to the control circuit. The control circuit controls the smart LED wall lamp based on the detection signal from the light sensor.

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