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

Abstract

The invention relates to the technical field of illumination, in particular to an intelligent LED wall lamp brightness adjusting method and an intelligent LED wall lamp. The intelligent LED wall lamp brightness adjusting method comprises the steps of S1, obtaining a reflection coefficient of a ceiling and obtaining target brightness according to a dial switch selection signal; s2, setting a light source brightness initial ratio of an upper light source to a lower light source according to the target brightness; 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; and S4, controlling the intelligent LED wall lamp to illuminate according to the corrected light source brightness ratio and the target brightness. And S5, dynamically adjusting the light source brightness ratio according to the real-time heat accumulation condition of the intelligent LED wall lamp. According to the intelligent LED wall lamp, the lighting effect and the heat dissipation effect of the intelligent LED wall lamp can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and particularly to a method for adjusting the brightness of an intelligent LED wall lamp and an intelligent LED wall lamp. Background Art

[0002] With the continuous development of technology, LED wall lamps have been widely used in places such as homes, offices, and shopping malls due to their high efficiency, environmental protection, long lifespan, and good lighting effects. However, heat is generated during the use of LED wall lamps. If the heat accumulates around the light-emitting elements of the LED wall lamp for a long time, it will seriously affect the lifespan of the LED wall lamp. Currently, LED lamps use heat dissipation components to dissipate heat from the LED wall lamp to extend its service life. However, currently, LED lamps usually install the heat dissipation components, the lamp body, and the power supply together, which causes the heat of the light-emitting part and the power supply part of the LED to affect each other, and a good heat dissipation effect cannot be obtained. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a method for adjusting the brightness of an intelligent LED wall lamp and an intelligent LED wall lamp to solve the technical problem of poor heat dissipation effect of existing intelligent LED wall lamps.

[0004] The technical solution adopted by the present invention is as follows: In the first aspect, the present invention provides a method for adjusting the brightness of an intelligent LED wall lamp, the method comprising: S1: Obtain the reflection coefficient of the ceiling and obtain the target brightness according to the signal selected by the DIP switch; S2: Set the initial light source brightness ratio of the upper light source and the lower light source according to the target brightness; S3: Correct the initial light source brightness ratio according to the reflection coefficient, the emission angle of the upper light source, and the emission angle of the lower light source; S4: Control the illumination of the intelligent LED wall lamp according to the corrected light source brightness ratio and the target brightness; S5: Dynamically adjust the light source brightness ratio according to the real-time heat accumulation situation of the intelligent LED wall lamp.

[0005] In the second aspect, the present invention provides an intelligent LED wall lamp, comprising two groups of light source components, a power supply component, and a hollow main body part. The two groups of light source components are respectively arranged on opposite sides of the main body part, and the power supply component is located outside the main body part; The light source assembly includes a lamp board, a lens, a glass end cap, and a heat dissipation side cover. A light-emitting element is provided on the lamp board, and the light-emitting element is electrically connected to the power supply assembly. The light-emitting element is located on the side of the lamp board facing the lens, and the heat dissipation side cover is located on the side of the lamp board facing away from the light-emitting element. The heat dissipation side cover covers the end of the main body portion, and a side cover waterproof ring is provided between the side cover and the main body portion. The power supply assembly includes a driving voltage and a control circuit, and the control circuit is electrically connected to the driving power supply and the light-emitting element respectively. The control circuit is used to execute the method described in the first aspect.

[0006] Beneficial effects: The intelligent LED wall lamp brightness control method of the present invention 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 emission angle of the upper light source, and the emission 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. It not only makes good use of the reflection conditions of the installation environment of the intelligent LED wall lamp, but also comprehensively controls the light emission of the light source through the emission angles of the upper and lower light sources, improving the lighting effect while reducing the influence of heat accumulation.

[0007] In the intelligent LED wall lamp of the present invention, the heat dissipation side cover is arranged on the side of the lamp board facing away from the light-emitting element in each group of light source assemblies, and the heat generated by the light-emitting element is quickly dissipated by using the good heat conductivity of the heat dissipation side cover. And since the heat dissipation side cover of the present invention is located in the main body portion, while the power supply assembly is located outside the main body portion, that is, the power supply assembly, the light-emitting element, and the heat dissipation side plate are separated by the main body portion, so the heat generated by the light-emitting element and the power supply assembly does not interfere with each other, thus significantly improving the overall heat dissipation efficiency of the intelligent LED wall lamp. Description of the drawings

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, and these are all within the protection scope of the present invention.

[0009] Figure 1 It is a schematic assembly structure diagram of the intelligent LED wall lamp of the present invention; Figure 2 It is a schematic exploded structure diagram of the intelligent LED wall lamp of the present invention; Figure 3 It is a schematic assembly structure diagram of the power supply assembly of the present invention; Figure 4 It is a schematic structure diagram of the power supply cover plate of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the heat dissipation side cover of the present invention; Figure 6 It is a schematic flow chart of the method for adjusting the brightness of the intelligent LED wall lamp of the present invention; Figure 7 It is a schematic flow chart of the method for dynamically adjusting the brightness ratio of the light source according to heat accumulation of the present invention; Figure 8 It is a schematic flow chart of the method for adjusting the brightness of the upper and lower light sources according to the overheat amount of the present invention; Figure 9 It is a schematic flow chart of the method for adjusting the power compensation amount according to the ambient brightness of the present invention; Figure 10 It is a schematic flow chart of the method for adjusting the output power when the overall light source is overheated of the present invention; Figure 11 It is a schematic flow chart of the method for obtaining the temperature of the light source of the present invention; Figure 12 It is a schematic flow chart of the method for correcting the light source temperature according to the residual heat of the present invention.

[0010] Components and their numbers in the figure: Main body part 1, power supply component 2, main body waterproof ring 21, light sensor 22, box body 23, convex part 231, box body waterproof ring 24, DIP adjustment board 25, drive power supply 26, power supply cover plate 27, card strip 271, installation fixing plate 28, first fixing part 281, second fixing part 282, third fixing part 283, waterproof cotton 29, light source component 3, side cover waterproof ring 31, heat dissipation side cover 32, groove 321, wiring hole 322, lamp board 33, lens 34, glass end cover 35. Detailed implementation manners

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that in this text, relational 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 any actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the said elements. If there is no conflict, the embodiments of the present invention and the various features in the embodiments can be combined with each other, and all are within the protection scope of the present invention.

[0012] Embodiment 1

[0013] As Figure 1 and Figure 2 shown, this embodiment provides an intelligent LED wall lamp. The intelligent LED wall lamp of this embodiment includes two groups of light source components 3, a power supply component 2, and a hollow main body part 1. The two groups of light source components 3 are respectively arranged on opposite sides of the main body part 1, and the power supply component 2 is located outside the main body part 1. Among them, the main body part 1 is generally cylindrical, with openings provided at both ends of the main body part 1. The two groups of light source components 3 are respectively installed at the opening positions at both ends of the main body part 1. The two groups of light source components 3 can adopt a symmetric arrangement method, so that the light distribution of the LED wall lamp is more uniform. Since the two groups of light source components 3 of this embodiment are symmetrically arranged at both ends of the main body part 1, the light shines evenly from both sides, and the light distribution is more uniform after being modulated by the lens 34. Such a design can effectively avoid the phenomenon of uneven light or shadow caused by unilateral lighting, and is particularly suitable for occasions that require large-area uniform lighting.

[0014] In each group of light source assemblies 3 in this embodiment, it mainly includes a lamp board 33, a lens 34, a glass end cap 35, and a heat dissipation side cover 32. A light-emitting element is provided on the lamp board 33, and the light-emitting element is electrically connected to the power supply assembly 2. The light-emitting element is located on the side of the lamp board 33 facing the lens 34, and the heat dissipation side cover 32 is located on the side of the lamp board 33 facing away from the light-emitting element. The heat dissipation side cover 32 is covered on the end of the main body portion 1, and a side cover waterproof ring 31 is provided between the side cover and the main body portion 1; The light emitted by the light-emitting element is modulated by the outer lens 34 and then emitted through the glass end cap 35. The heat generated by the light-emitting element is quickly dissipated by the inner heat dissipation side cover 32 and will not accumulate nearby, so the heat dissipation effect is better.

[0015] In each group of light source assemblies 3, the heat dissipation side cover 32 is located on the side of the lamp board 33 facing away from the light-emitting element, and the heat dissipation side cover 32 quickly dissipates the heat generated by the light-emitting element to the surrounding environment through the good thermal conductivity of the metal material. This design not only extends the service life of the LED wall lamp but also ensures the stability of the lamp during long-term operation. It can also keep the temperature of the lamp within a reasonable range during operation by using the design of the heat dissipation side cover 32, thereby significantly improving the heat dissipation efficiency.

[0016] The LED wall lamp in this embodiment can also change the optical angle of the LED wall lamp by replacing different lenses 34.

[0017] In this embodiment, the power supply assembly 2 includes a driving voltage and a control circuit, and the control circuit is electrically connected to the driving power supply 26 and the light-emitting element respectively.

[0018] The driving power supply 26 can supply power to the LED wall lamp through the control circuit and control the illuminance and switch state of the LED wall lamp as needed.

[0019] Such as Figure 3 In this embodiment, the power supply assembly 2 further includes a power supply box, and the power supply box includes a box body 23 and a power supply cover plate 27. The power supply cover plate 27 is covered on the box body 23, and the driving power supply 26 and the control circuit are located in the space surrounded 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.

[0020] Such as Figure 3 And Figure 4As shown, the power supply assembly 2 further includes a mounting fixing plate 28. An edge of the back side of the power supply cover plate 27 extending away from the power supply box body 23 forms a clamping strip 271. An edge of the mounting fixing plate 28 corresponding to the clamping strip 271 extends outward to form a first fixing portion 281. The first fixing portion 281 is snapped into the gap between the clamping strip 271 and the edge of the power supply box body 23. One side of the mounting fixing plate 28 having the fixing portion is snapped into the clamping strip 271 to be clamped with the power supply cover plate 27, and the remaining edges can be fixed to the box body 23 by locking cover plate screws. In this way, the installation stability can be ensured, and the disassembly and assembly of the power supply assembly 2 are facilitated.

[0021] The clamping strip 271 is inclined with respect to the edge connected to the clamping strip 271, and the first fixing portion 281 is inclined with respect to the edge connected to the clamping strip 271.

[0022] In this embodiment, the clamping strip 271 and the first fixing portion 281 adopt the inclined setting manner with respect to the edge connected to the clamping strip 271. The mounting fixing plate 28 can be reliably pressed against the clamping strip 271 and the edge connecting with the clamping strip 271 through the inclined plane.

[0023] Since the power supply cover plate 27 is firmly connected to the mounting fixing plate 28 through the clamping strip 271, the first fixing portion 281 is snapped into the gap between the clamping strip 271 and the edge of the power supply box body 23. The clamping strip 271 and the relative edge of the fixing portion are inclined. Through the inclined plane pressing structure, the stable installation of the power supply assembly 2 is ensured, the problem of loosening caused by vibration or impact is avoided, and at the same time, the later disassembly, assembly and maintenance are facilitated.

[0024] In this embodiment, a waterproof cotton 29 is provided on the side of the mounting fixing plate 28 facing away from the power supply cover plate 27. After the LED wall lamp is installed, the waterproof cotton 29 is located between the power supply box and the installation wall surface. By providing the waterproof cotton 29 outside the power supply cover plate 27 in this embodiment, water seepage from the wall or ceiling where the LED wall lamp is installed 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, moisture can be effectively prevented from seeping into the power supply box through the contact surface between the lamp and the wall. This structural design significantly improves the overall protection performance of the wall lamp.

[0025] In this embodiment, a box body 23 waterproof ring is further provided at the position where the power supply cover plate 27 contacts the box body 23, so as to prevent water from entering the power supply box at the connection position between the box body 23 and the power supply cover plate 27.

[0026] An opening is provided on the outer wall of the main body portion 1. A protruding portion 231 is provided on one side of the power supply box facing the main body portion 1. The surface of the protruding portion 231 facing the main body portion 1 is in contact with the surface of the main body portion 1 at the position of the opening. In this embodiment, a side cover waterproof ring 31 is provided between the side cover and the main body portion 1. At the same time, a waterproof ring for the box body 23 is also provided at the contact position between the power supply cover plate 27 and the box body 23. Such a multi-layer waterproof design can effectively prevent moisture from entering the interior of the lamp, improve the waterproof performance of the product, and make it suitable for various indoor and outdoor environments. It can work normally in high-humidity environments.

[0027] The wires in the power supply box enter the interior of the main body portion 1 through the opening and are electrically connected to the light-emitting elements on the lamp board 33 located inside the main body portion 1. In this embodiment, the protruding portion 231 on the power supply box covers the opening. The shape of the surface of the protruding portion 231 facing the main body portion 1 is complementary to the shape of the outer wall of the main body portion 1. In this way, the surface of the protruding portion 231 facing the main body portion 1 fits better with the surface of the main body portion 1 at the position of the opening, so as to leave a gap at the position of the snap hole after the clearance installation.

[0028] In this embodiment, a main body waterproof ring 21 is provided on the surface of the protruding portion 231 facing the main body portion 1. The main body waterproof ring 21 is used to seal the opening. In this embodiment, the main body waterproof ring 21 fully fills the gap between the surface of the protruding portion 231 facing the main body portion 1 and the surface of the main body portion 1 at the position of the opening, effectively preventing water from entering the main body portion 1 through the gap at the fitting position of the two. Since the protruding portion 231 is in close contact with the surface of the main body portion 1 at the position of the opening, and the main body waterproof ring 21 is provided to seal the opening. This design effectively avoids the problem of water seepage when the wire passes through the opening, ensuring the safety of the electrical components inside the lamp.

[0029] The power supply component 2 further includes a DIP adjustment board 25. The DIP adjustment board 25 is electrically connected to the control circuit. The DIP adjustment board 25 includes a DIP adjustment switch for adjusting the power of the smart LED wall lamp in a DIP manner and a switch for adjusting the color temperature of the smart LED wall lamp by toggling. Since the brightness of the smart LED wall lamp is positively correlated with its power, the brightness of the smart LED wall lamp is adjusted by adjusting the power of the smart LED wall lamp. 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 DIP adjustment switch, so as to adapt to different scenario requirements.

[0030] In this embodiment, the power supply assembly 2 further includes a light sensor 22, which is electrically connected to the control circuit. The control circuit controls the LED lamp DIP adjustment board 25 according to the detection signal of the light sensor 22 to adjust the power and color temperature of the LED lamp, so as to flexibly adjust the lighting effect according to different application scenarios. The light sensor 22 can automatically adjust the brightness of the LED lamp according to the ambient light, so as to achieve the energy-saving effect. This intelligent function makes the wall lamp not only have a good lighting effect, but also has the characteristics of high energy efficiency.

[0031] On two sides of the mounting fixing plate 28 adjacent to the first fixing portion 281, a second fixing portion 282 and a third fixing portion 283 are respectively provided. The second fixing portion 282 is inclined relative to the power supply cover plate 27, and the third fixing portion 283 is inclined relative to the power supply cover plate 27. The second fixing portion 282 and the third fixing portion 283 are pressed on the power supply cover plate 27 by the lock cover plate screws connected to the box body 23.

[0032] As Figure 5 shown, the heat dissipation side cover 32 is provided with a groove 321 recessed in the direction away from the lens 34. The glass plate, the light emitting plate and the lens 34 are located in the groove 321. On the side of the heat dissipation side cover 32 facing away from the lens 34, a wiring hole 322 is provided, and the cross section of the wiring hole 322 is rectangular. The connecting wires of the power supply assembly 2 pass through the inside of the main body portion 1 and are respectively connected to the light emitting plate through the wiring hole 322.

[0033] Embodiment 2

[0034] As Figure 7 shown, this embodiment provides an intelligent LED wall lamp brightness adjustment method, which is used to control the intelligent LED wall lamp described in the first aspect. The light emitting units of the upper light emitting assembly form an upper light source, and the light emitting units of the lower light emitting assembly form a lower light source. The method includes: S1: Obtain the reflection coefficient of the ceiling and obtain the target brightness according to the DIP switch selection signal; Traditional LED wall lamps do not consider the reflected light effect of different installation positions (such as the height of the ceiling and the distance from the wall), resulting in unreasonable brightness distribution of the upper light source or the lower light source, affecting the lighting effect and user experience. In this regard, this embodiment controls the lighting of the intelligent LED wall lamp according to the reflection of the ceiling. For precise control, this step can obtain the target brightness level (such as 300 Lux, 500 Lux, 700 Lux, etc.) or "low / medium / high" power through the signal received by the control circuit after toggling the DIP switch, and then determine the brightness selected by the user as the target brightness according to these different brightness levels and power levels.

[0035] The ceiling reflection coefficient can be determined by combining the distance between the upper light source and the ceiling and the ceiling material. The reflection coefficient can be configured by dialing, knob, menu parameters or factory settings.

[0036] S2: setting an initial light source brightness ratio of the upper light source and the lower light source according to the target brightness; In the specific implementation of this step, the initial upper and lower light source brightness ratio can be set according to the target brightness required by the user (for example, 300 Lux, 500 Lux, 700 Lux...): For example, in the low brightness range (such as 300 Lux), soft ambient lighting is required. Although the light source above reflects through the ceiling to bring diffuse light, it is easy to cause glare or unevenness. Therefore, a luminous brightness ratio that emphasizes the light source below can be used: For medium brightness range (such as 500 Lux brightness level) Users want both soft ambient light and some direct lighting. The light source brightness ratio that can be used is: top: bottom ≈ 50%: 50%. This can make the upper and lower light sources relatively balanced. For high brightness range (such as 700Lux brightness): In order to ensure higher overall illumination, more direct or semi-direct light is needed, and the absolute light output of the light source above needs to be increased.

[0037] S03: Correcting the initial brightness ratio of the light source according to the reflection coefficient; If the reflection coefficient ρ of the ceiling is large (such as 0.7 or higher), the actual available lighting emitted by the upper light source will be significantly enhanced after diffuse reflection from the ceiling. In this regard, this step can relatively reduce the proportion of the upper light source to avoid overflow or excessive uniformity of the total lighting, thereby reducing the direct lighting below.

[0038] For example, if the initial brightness ratio of the upper and lower light sources is 70:30, it can be corrected to 60:40 or even 50:50 according to the diffuse reflection of the ceiling. If the reflection coefficient ρ of the ceiling is small (such as 0.3 or lower), the ceiling does not reflect the light source above significantly, and it is difficult for the environment to obtain sufficient light through reflection from above. Accordingly, the proportion of the light source above needs to be increased to achieve the required brightness. For example, the initial brightness ratio of the upper and lower light sources is 50:50, which can be corrected to 60:40 or 65:35. In this embodiment, the initial upper and lower light source brightness ratio can also be corrected according to the following formula: K2 = K1×f(ρ), where K1 is the initial brightness ratio of the upper and lower light sources, K2 is the corrected brightness ratio of the upper and lower light sources, and f(ρ) is a function that is negatively or positively correlated with the reflection coefficient ρ: f(ρ) = 1 - α(ρ - 0.5). Since the light-emitting angles of the light sources in the LED lamp also affect the lighting effect, the following steps can be used to correct the light-emitting ratio of the upper and lower light sources: S3: Correct 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 Specifically, it includes: S31: Obtain 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; The foregoing parameters of the light source can be obtained through the device parameters and the position after installation, including the light-emitting angle α1 and the horizontal installation height H1 of the upper light source, and the light-emitting angle α2 and the installation height H2 of the lower light source. These parameters constitute the basic input for brightness calculation.

[0039] S32: Determine 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; The upper light source coverage radius R1 = H1×tan(α1 / 2), and the lower light source coverage radius R2 = H2×tan(α2 / 2). S33: Determine the influence coefficients of the effective brightness of the upper and lower light sources according to the coverage range and the reflection coefficient; Specifically, a normalization processing algorithm is used in implementation. The upper light source influence coefficient K1 = (1 / R1)×(1 + ρ), where ρ is the ceiling reflection coefficient; the lower light source influence coefficient K2 = 1 / R2. Both are inversely proportional to the coverage range, and the upper light source coefficient is additionally positively affected by the reflection coefficient.

[0040] S34: Calculate 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 coefficients; In this step, brightness correction estimation is performed. The actual brightness of the upper light source L1' = L1×K1, and the actual brightness of the lower light source L2' = L2×K2, where L1 and L2 are the initial ratio brightness values. Through this calculation, the light efficiency loss caused by environmental factors is quantified.

[0041] S35: Correct the initial ratio according to the actual brightness of the upper light source, the actual brightness of the lower light source, and the target brightness.

[0042] In this step, an iterative optimization algorithm is adopted to establish a brightness error function E = (L1' + L2' - L_target)^2, where L_target is the target brightness. The initial ratio parameters are adjusted by the gradient descent method until the value of the error function is lower than the set threshold, and the corrected brightness ratio scheme is output.

[0043] S4: Control the intelligent LED wall lamp lighting according to the corrected light source brightness ratio and the target brightness; After obtaining the target brightness and the corrected light source brightness ratio, the brightness of the upper light source and the lower light source can be determined according to the target brightness and the corrected light source brightness ratio. The intelligent LED lamp finds the corresponding output power of the upper light source and the lower light source according to the relationship between power and brightness, and controls the brightness of the upper light source and the lower light source by controlling the output power of the upper and lower light sources, so as to achieve the lighting effect of the target brightness expected by the user.

[0044] S5: Dynamically adjust the light source brightness ratio according to the real-time heat accumulation of the intelligent LED wall lamp.

[0045] Since the LED itself generates heat during operation, if the heat cannot be dissipated in a timely and effective manner, the light decay of the LED will accelerate and its service life will be shortened. Therefore, in this step, the real-time heat accumulation of the LED wall lamp is obtained during the operation of the intelligent LED wall lamp, and the light-emitting ratio of the upper light source and the lower light source is dynamically adjusted 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.

[0046] As Figure 7 shown, in this embodiment, the S5: Dynamically adjust the light source brightness ratio according to the real-time heat accumulation of the intelligent LED wall lamp further includes: S51: Obtain the light source temperatures of the upper light source and the lower light source; Since the temperatures of the light sources reflect the heat accumulation of the light sources, in this step, the temperatures of the upper light source and the lower light source can be obtained separately first as the basis for adjustment.

[0047] S51: When only one of the upper light source and the lower light source has a light source temperature exceeding the heat safety threshold, the overheated light source is used as the light source to be cooled, and the other light source is used as the compensation light source; In actual use, the situation where both the upper light source and the lower light source are overheated may occur, or the situation where only one of the upper light source and the lower light source is overheated, i.e., unilateral overheating, may occur. 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 if the temperature exceeds this value, the light source is considered overheated.

[0048] The overheated light source needs to be quickly cooled down, so the overheated light source in this article is also called the light source to be cooled, and the other is called the compensation light source.

[0049] S52: Reduce the light-emitting ratio of the light source to be cooled according to the temperature of the light source to be cooled and the heat safety threshold, and correspondingly increase the light-emitting ratio of the compensation light source.

[0050] If the temperature on one side of the intelligent LED lamp exceeds the threshold, some of the load on one side can be transferred to the other side on the premise that the target brightness remains unchanged: For example, before adjusting the lighting brightness according to the temperature, the light-emitting ratio of the upper light source is 70% and that 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 ratio of the upper light source can be reduced to 60%, and the light-emitting ratio of the lower light source can be increased to 40%, that is, a part of the light-emitting ratio of the upper light source is transferred to the lower light source, so that the same total power or illuminance output can be maintained unchanged.

[0051] Affected by the ceiling reflection factor, the contribution of the upper light source to the final ambient brightness under the same input power is often different from that of the lower light source. If the light-emitting ratios of the upper and lower light sources are directly adjusted according to the temperature and heat safety threshold, for example, changing the ratio of the upper light source from 70% to 60% and the ratio of the lower light source from 30% to 40% in the foregoing example while keeping the total power unchanged, the actual overall brightness may increase or decrease, and the brightness cannot be truly kept unchanged.

[0052] As Figure 8 shown, in this embodiment, the S53: Reduce the light-emitting ratio of the light source to be cooled according to the temperature of the light source to be cooled and the heat safety threshold, and correspondingly increase the light-emitting ratio of the compensation light source further includes: The light-emitting ratio of the light source further includes: S531: Obtain the excess heat according to the temperature of the light source to be cooled and the heat safety threshold; Wherein the excess heat is the difference between the temperature of the light source to be cooled and the heat safety threshold.

[0053] S532: Determine the target reduction amount of the light-emitting ratio of the light source to be cooled according to the excess heat, the current light-emitting ratio of the light source to be cooled, the minimum light-emitting ratio, and the maximum light-emitting ratio of the compensation light source; If this excess heat is large, it means that a larger transfer of the light-emitting ratio is required; if the difference is not large, only a small transfer of the light-emitting ratio is needed. Therefore, the greater the excess heat, the greater the target reduction amount of the light-emitting ratio of the light source to be cooled.

[0054] Since the luminous ratio of the light source to be cooled cannot become negative or extremely small, the determination of the target reduction needs to satisfy that the luminous ratio of the light source to be cooled is greater than the required set value, i.e., the minimum luminous ratio. In addition, if the luminous ratio of the compensation light source is too high, it will affect the lighting uniformity, and it will also cause the compensation light source itself to overheat due to the excessive power of the supplementary light source. Therefore, the maximum luminous ratio of the compensation light source is set in this step, and the corrected luminous ratio of the compensation light source cannot be greater than the maximum luminous ratio of the compensation light source when determining the target reduction.

[0055] S533: Determine the 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; The ceiling reflection coefficient makes it easier for the upper light source to generate additional light gain than the lower light source.

[0056] For example, after transferring the power part reduced by the upper light source 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 it is higher than the original brightness, the total power can be slightly reduced. The increase or decrease amount of the total power mentioned above is the power compensation amount mentioned above; To adapt to different lighting requirements, in this embodiment, the luminous angle of the light source can also be adjusted by adjusting the distance between the lens and the light source. For example, the luminous angle of the light source can be adjusted by driving the lens to move closer to or away from the light source by a linear electric cylinder. For such intelligent LED wall lamps with adjustable luminous angles, the S533: Determine the power compensation amount and the luminous 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 includes: Obtain the current output power, current luminous angle, power adjustment range, and luminous angle adjustment range of the supplementary light source; where the power adjustment range and the luminous angle adjustment range are the inherent parameters of the LED lamp.

[0057] Determine several light source adjustment strategies according to the target reduction amount; The light source adjustment strategies include but are not limited to: Strategy (1): Reduce the power of the overheated light source by ΔP and simultaneously reduce its luminous angle by Δθ; Strategy (2): Reduce the power of the overheated light source by ΔP and increase the power of the compensation light source by ΔP_comp (ΔP_comp = ηΔP, η is the reflection coefficient correction factor) proportionally; Strategy (3): Adjust the power of the overheated light source by ΔP and adjust the power or luminous angle of the compensation light source; Strategy (4): Reduce the power of the overheated light source and reduce the overheated light beam angle, and at the same time adjust the power or angle of the compensation light source.

[0058] Evaluate the adjustment effects of various light source adjustment strategies according to the power adjustment range and the light emission angle adjustment range; specifically, the evaluation can be carried out from the following aspects: (a) Temperature safety (whether the overheating risk can be quickly reduced); (b) Brightness or light efficiency maintenance (the impact on overall or local lighting); (c) Equipment adjustment margin (whether it exceeds the power or angle limit of the compensation light source) Select one of the several light source adjustment strategies as the target adjustment strategy according to the evaluation results; A combination scheme that can make up for the brightness and quickly cool down under the condition of small change in light efficiency can be selected.

[0059] Obtain the smooth adjustment curve of power and / or angle 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; Combined with the heat sink thermal resistance parameters and real-time temperature sampling data, use the Sigmoid function to generate a transition curve to ensure that the power adjustment slope is less than the preset value and the angle change rate is less than the preset value, avoiding mechanical shock and light flicker Adjust the power and / or angle of the intelligent LED wall lamp according to the smooth adjustment curve.

[0060] This step completes the progressive switching of parameters according to the smooth adjustment curve, and finally stabilizes the system at the target operating point.

[0061] In this embodiment, through the multi-strategy dynamic adjustment mechanism of power combination and angle coordination control, while ensuring the cooling rate, it avoids the sudden change in illuminance caused by traditional single power reduction, and improves the temperature control accuracy.

[0062] S534: Adjust the total power of the LED intelligent 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.

[0063] For example, before adjustment according to the heat accumulation situation, the initial light source brightness ratio is: the upper light source accounts for 70%, the lower light source accounts for 30%, and the total power is 20W. If the ceiling is high and the reflection coefficient is large, the upper light source contributes significantly to the overall illuminance. After a period of time, the temperature of the upper light source or the lower light source obtained by the system indicates that the heat accumulation has approached the safety threshold and load reduction is required.

[0064] At this time, the light emission ratio of the upper light source is reduced from 70% to 60%. The specific amplitude can be determined according to how much the current temperature is from the threshold.

[0065] If the 10% reduction of the upper light source is added to the lower light source, the light-emitting ratio of the lower light source becomes 40%. The system can first make a brightness estimate. If the estimate shows that, compared with the original 20W situation, adjusting according to the aforementioned light-emitting ratio will reduce the overall brightness by about 5%. To make up for the 5% brightness loss, the system increases the total power from 20W to 21W. After the aforementioned fine-tuning, when the overall brightness obtained by the re-estimation returns to a small error compared with the brightness before adjustment, it is okay. In this way, the proportion of the upper light source is reduced to 60% to alleviate the overheating problem of the overheated upper light source, the proportion of the lower light source is increased to 40% to make up for the loss caused by the reduction of the brightness of the upper light source, the total power is slightly higher than the original, the ceiling reflection still plays a role, but the overall illumination still remains near the target brightness set by the user.

[0066] As the heat generation of the upper light source decreases, its heat index may no longer accumulate rapidly in subsequent time. If the system monitors that the temperature or heat of the lower light source begins to rise, similar operations can also be performed to balance.

[0067] As Figure 9 shown, in this embodiment, the step S5: dynamically adjusting the light source brightness ratio according to the real-time heat accumulation of the intelligent LED wall lamp further includes: S525: Detect the current ambient illuminance; In specific implementation, a light sensor can be used to detect the illuminance of the current environment.

[0068] S526: Compare the target brightness with the current ambient illuminance; S527: If the target brightness is greater than the current ambient illuminance, increase the power compensation amount of the compensation light source; If the reading of the light sensor is lower than the target brightness, it means the environment is not bright enough. At this time, the compensation amount 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 is close to the target value.

[0069] S528: If the target brightness is less than the current ambient illuminance, reduce the power compensation amount of the compensation light source.

[0070] If it is found that the sensor reading is higher than the target brightness, it means that even after reducing the proportion of the upper light source, the room is still too bright, or there is enough natural light outside. At this time, the compensation amount of the lower light source can be appropriately reduced, or the overall total power can be reduced to achieve an energy-saving effect; Moreover, after the initial light source brightness initial ratio is just executed, the system can compare the readings of the light sensor in a short time: check whether the ambient illuminance still differs greatly from the target brightness. After adjustment, obtain the measurement value of the light sensor again. If the ambient illuminance returns to the allowable range of the target brightness (for example, the brightness range that fluctuates up and down by 5% of the target brightness), stop the adjustment; if the difference is still large, continue to make small-step adjustments.

[0071] This 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, ensuring that the required illuminance is ultimately maintained, and users will not perceive obvious brightness fluctuations.

[0072] If the LED smart lamp is equipped with a temperature sensor, the temperature of the heat dissipation side cover or the lamp board can be periodically collected. When the temperature of one side is too high, the system can dynamically adjust the ratio of the upper and lower light sources to avoid overheating and ensure the overall illuminance.

[0073] In the case where no temperature sensor is provided, the current possible temperature level of a certain side light source can be inferred through the "estimation" or "modeling" of the LED heat generation law and heat dissipation capacity; As Figure 10 shown, in this embodiment, the step S5: Dynamically adjusting the brightness ratio of the light sources according to the real-time heat accumulation of the intelligent LED wall lamp further includes: S54: Obtaining the overall overheat of the light source when it is detected that the light source temperatures of both the upper light source and the lower light source exceed the heat safety threshold; S55: Reducing the overall output power of the LED smart lamp according to the overall overheat.

[0074] If the light sources on both sides exceed the safety threshold, the "total power downloading" mode can be entered to reduce the overall output until the estimated temperature returns to the safe zone.

[0075] As Figure 11 shown, in this embodiment, the step S51: Obtaining the light source temperatures of the upper light source and the lower light source further includes: S511: Obtaining the power of the upper light source and the lower light source in each time period in the on state; The heat generation of the LED is positively correlated with its input power. In this step, the power in each time period is obtained, and the aforementioned power is the average power in each time period; S512: Obtaining the duration of each time period; S513: Obtaining the cumulative output energy of the upper light source and the lower light source according to the power and duration of each time period; Among them, the output energy of the upper light source and the lower light source is the integral of their respective powers with respect to time.

[0076] S514: Obtaining the temperatures 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.

[0077] Longer continuous working hours will cause the temperature to accumulate continuously. After reaching the steady state, the temperature rise is basically stable. Different gear ratios and the proportion distribution of the upper and lower light sources will result in different heat accumulation rates on both sides of the LED modules. The control circuit determines how long each side of the LED module has been working at what power through a timer or cycle accumulation, so as to obtain the current "estimated temperature" in the estimation model.

[0078] 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 off period is not considered when it is turned on again, it may lead to a large error in the estimated heat. As Figure 12 shown, in this embodiment, before the step S511: obtaining the power of the upper light source and the lower light source in each time period in the on state, it further includes: S5101: Record the off time point of the light source and the temperature at the time of turning off when the light source is turned off; S5102: Determine the cooling duration according to the on time point of the light source when it is turned on again and the off time point; The cooling duration is the time length from the off state to the on state of the light source. During this period, the temperature of the turned-off light source will decrease to a certain extent.

[0079] S5103: Determine the residual heat at the moment when the light source is turned on again according to the temperature at the time of turning off the light source and the cooling duration.

[0080] The residual heat is the heat that the light source still has when it is turned on again.

[0081] After the step S514: obtaining the temperatures 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, it further includes: S515: Correct the temperatures of the upper light source and the lower light source according to the residual heat.

[0082] This step takes into account the influence of the residual heat that remains after the previous work is temporarily suspended when estimating the temperatures of the upper light source and the lower light source during operation, so as to improve the accuracy of temperature estimation.

[0083] The foregoing solution avoids the heat being reset to zero once the light source of the intelligent LED lamp is turned off or enters a low power state, so that when the device is restarted immediately after overheating and shutting down, it runs at full power again, resulting in overheating again in a very short time and forming a vicious cycle.

[0084] The above is a detailed introduction to the intelligent LED wall lamp and the intelligent LED wall lamp brightness adjustment method provided by the embodiments of the present invention.

[0085] It should be clear that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of 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 invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order between steps after understanding the spirit of the present invention.

[0086] The functional blocks shown in the above-described structural block diagrams 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, and so on. When implemented in software, the elements of the present invention are programs or code segments used to perform the required tasks. The program or code segment can be stored in a machine-readable medium or transmitted via a data signal carried in a carrier wave on a transmission medium or a communication link. "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 discs, hard disks, fiber optic media, radio frequency (RF) links, and so on. The code segment can be downloaded via a computer network such as the Internet, an intranet, and so on.

[0087] 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 executed in the order mentioned in the embodiments, or different from the order in the embodiments, or several steps can be executed simultaneously.

[0088] As described above, the above is only the specific implementation manner of the present invention. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. Intelligent LED wall lamp brightness adjustment method, characterized in that: The method comprises: S1: Get the reflection coefficient of the ceiling and get the target brightness according to the DIP switch selection signal; S2: setting an initial light source brightness ratio of the upper light source and the lower light source according to the target brightness; S3: correcting the initial brightness ratio of the light source according to the reflection coefficient, the luminous angle of the upper light source and the luminous angle of the lower light source; S4: Control the intelligent LED wall lamp lighting according to the corrected light source brightness ratio and target brightness; S5: Dynamically adjust the brightness ratio of the light source according to the real-time heat accumulation of the smart LED wall lamp.

2. The intelligent LED wall lamp brightness adjustment method according to claim 1, characterized in that: The S3 further includes: S31: Obtaining a light emitting angle of an upper light source, an installation height of the upper light source, a light emitting angle of a lower light source, and an installation height of the lower light source; 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; S33: Determine the influence coefficient of the effective brightness of the upper light source and the lower light source according to the coverage range and the reflection coefficient; 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; S35: Correcting the initial ratio according to the actual brightness of the upper light source, the actual brightness of the lower light source, and the target brightness.

3. The intelligent LED wall lamp brightness adjustment method according to claim 1, characterized in that: The S5 further includes: S51: Obtaining the light source temperatures of the upper light source and the lower light source; S52: when the temperature of only one of the upper light source and the lower light source exceeds the thermal safety threshold, the overheated light source is used as a light source to be cooled, and the other light source is used as a compensation light source; S53: reducing the light emission ratio of the light source to be cooled according to the temperature of the light source to be cooled and the heat safety threshold and correspondingly increasing the light emission ratio of the compensation light source.

4. The intelligent LED wall lamp brightness adjustment method according to claim 3 is characterized in that: The step S53 of reducing the light emission ratio of the light source to be cooled according to the temperature of the light source to be cooled and the heat safety threshold and correspondingly increasing the light emission ratio of the compensation light source also includes: S531: Obtaining an overheat value according to the temperature of the light source to be cooled and a heat safety threshold; S532: determining a target reduction amount of the luminous ratio of the light source to be cooled according to the overheat, the current luminous ratio and the minimum luminous ratio of the light source to be cooled, and the maximum luminous ratio of the compensation light source; 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 smart wall lamp and the target reduction amount; S534: adjusting the total power of the LED smart wall lamp according to the power compensation amount, and adjusting the brightness of the light source to be cooled and the compensation light source according to the target reduction amount.

5. The intelligent LED wall lamp brightness adjustment method according to claim 4, characterized in that: The S533 further includes: Obtain the current output power, current luminous angle, power adjustment range and luminous angle adjustment range of the supplementary light source; Determine several light source adjustment strategies based on target reduction; Evaluate the adjustment effects of various light source adjustment strategies based on the power adjustment range and the luminous angle adjustment range; Selecting one of the plurality of light source adjustment strategies as a target adjustment strategy according to the evaluation result; Obtaining a smooth adjustment curve of power and / or angle according to the heat dissipation capacity of the intelligent LED wall lamp, the current heat, the relevant light source parameters determined by the target adjustment strategy, and the difference between the current light source parameters; The power and / or angle of the intelligent LED wall lamp is adjusted according to the smooth adjustment curve.

6. The intelligent LED wall lamp brightness adjustment method according to claim 3, characterized in that: Said also includes: S511: Obtain the power of the upper light source and the lower light source in each time period in the turned-on state; S512: Obtain the duration of each time period; S513: Obtaining the cumulative output energy of the upper light source and the lower light source according to the power and duration of each time period; S514: Acquire the temperatures of the upper light source and the lower light source according to the accumulated outputs of the upper light source and the lower light source.

7. The intelligent LED wall lamp brightness adjustment method according to claim 6, characterized in that: The S511 further includes: S5101: When the light source is turned off, record the time point when the light source is turned off and the temperature when the light source is turned off; S5102: When the light source is turned on again, a cooling time is determined according to the turning-on time point and the turning-off time point; S5103: Determine the residual heat when the light source is turned on again according to the temperature and cooling time when the light source is turned off; After the step S514 of obtaining the temperatures of the upper light source and the lower light source according to the accumulated outputs of the upper light source and the lower light source, the method further includes: S515: Correcting the temperatures of the upper light source and the lower light source according to the residual heat.

8. Intelligent LED wall lamp, characterized in that, It comprises a power supply assembly, a hollow main body and two groups of light source assemblies, wherein the two groups of light source assemblies are respectively arranged on two opposite sides of the main body, and the power supply assembly is located outside the main body; The light source assembly includes a lamp board, a lens, a glass end cover and a heat dissipation side cover. The lamp board is provided with a light-emitting element, the light-emitting element 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 cover is located on the side of the lamp board facing away from the light-emitting element, the heat dissipation side cover is provided at the end of the main body, and a side cover waterproof ring is provided between the heat dissipation side cover 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 execute the method according to any one of claims 1 to 7.

9. The smart LED wall lamp according to claim 8, characterized in that: The power supply assembly also includes a power supply box, which includes a box body and a power supply cover, wherein the power supply cover is disposed on the box body, and the driving power supply and the control circuit are located in a space enclosed by the box body and the power supply cover.

10. The smart LED wall lamp according to claim 9, characterized in that: The power supply assembly also includes a mounting plate, an edge of the power cover plate on a side facing away from the power supply box body extends to form a clamping strip, an edge of the mounting plate corresponding to the clamping strip extends outward to form a first fixing portion, and the first fixing portion is clamped into a gap between the clamping strip and the edge of the power supply box body; The second fixing part and the third fixing part are respectively arranged on the two sides of the installation fixing plate adjacent to the first fixing part, the second fixing part is inclined relative to the power cover plate, the third fixing part is inclined relative to the power cover plate, the second fixing part and the third fixing part are pressed on the power cover plate by the locking cover screws connected to the box body, the clamping strip is arranged obliquely relative to the edge connected to the clamping strip, the first fixing part is arranged obliquely relative to the edge connected to the clamping strip, and a waterproof cotton is arranged on the side of the installation fixing plate facing away from the power cover plate; A box body waterproof ring is provided at the position where the power cover plate 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, and the surface of the protrusion facing the main body fits with the surface of the main body at the position of the opening; The surface of the raised portion facing the main body is provided with a main body waterproof ring, and the main body waterproof ring is used to seal the opening; The power supply assembly also includes a dial adjustment board, and the dial adjustment board 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 intelligent LED wall lamp according to a detection signal of the light sensor.

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