A fine lighting regulation system and regulation method of a multi-lamp bead LED lamp

Abstract

The application relates to the technical field of lamps, and discloses a fine lighting regulation and control system and method of a multi-lamp-bead LED lamp, the fine lighting regulation and control system comprising: an LED lamp comprising an angle adjustment holder and a plurality of lamp beads, the plurality of lamp beads being arranged in an array, and each lamp bead being internally provided with a multi-color chip; a feedback collection module of an illuminated surface, which is used for collecting spot, brightness and color temperature data of the illuminated surface; and a main controller which is used for acquiring data and comparing the data with preset target lighting parameters, so as to adjust the pitch angle of the lamp beads, adjust the current size of each lamp bead, and adjust the current ratio of each channel of the multi-color chip of each lamp bead until the target lighting parameters are reached. The fine lighting regulation and control system and method of the application can perform fine lighting regulation and control through target lighting parameters and real-time collected illumination data of the illuminated surface, flexibly adjust the overall light-emitting angle, locally adjust the brightness and color temperature, and solve the technical problems of spot deviation and poor brightness uniformity.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, specifically to a refined lighting control system and method for multi-LED lamps. Background Technology

[0002] Currently, in many scenarios (such as bridge night scene lighting or bridge night construction auxiliary lighting, etc.), the lighting requirements are extremely high, requiring the use of LED lamps containing multiple LED beads. These LED lamps integrate a large number of high-brightness LED beads, each with low power consumption and uniform light emission. Combined with an integrated driver power supply to ensure stable output, these LED lamps can meet the high lighting requirements.

[0003] In related technologies, the illumination angle of LED beads in traditional LED lamps is mostly fixed at the factory. The illumination angle of the LED beads is determined at the time of production and can only be easily adjusted manually. At the same time, the brightness and color temperature of LED lamps can only be adjusted as a whole.

[0004] However, traditional LED lighting fixtures have the following drawbacks, making it difficult to achieve precise lighting control: ① Traditional LED lights are prone to problems such as light spot shift and central glare with insufficient edge illumination (i.e., poor brightness uniformity), and simple manual fine-tuning often cannot meet the correction requirements.

[0005] ②After installation, the overall light output angle of traditional LED lights is basically not adjustable, making them inflexible in use.

[0006] ③ Traditional LED lights can only adjust brightness and color temperature as a whole, which cannot meet the needs of special scenarios (such as needing half cool white light and half warm white light). Summary of the Invention

[0007] This application provides a refined lighting control system and method for multi-LED lamps. By using target lighting parameters and real-time collected illumination data of the illuminated surface, refined lighting control can be achieved. This allows for more flexible adjustment of the overall light output angle, local adjustment of brightness and color temperature, and also solves the technical problems of light spot deviation and poor brightness uniformity.

[0008] In a first aspect, embodiments of this application provide a refined lighting control system for multi-LED lamps, comprising: an LED lamp, which includes an angle adjustment pan-tilt unit and a plurality of LEDs, wherein the angle adjustment pan-tilt unit has a plurality of mounting holes, and the plurality of LEDs are arranged in an array and installed one by one in the plurality of mounting holes; each LED has a built-in multi-color chip; each mounting hole is provided with a drive actuator, which is connected to the LED and the angle adjustment pan-tilt unit to realize the pitch swing of the LED; The surface illumination feedback acquisition module is fixedly installed on the side facing the surface to collect the light spot, brightness and color temperature of the surface to be illuminated. The main controller is connected to the drive actuator and the illumination surface feedback acquisition module. The main controller is used to acquire light spot, brightness and color temperature data, and compare them with preset target lighting parameters. Then, it adjusts the lamp pitch angle, the current of each lamp, and the current ratio of each channel of the multi-color chip of each lamp through the drive actuator until the preset target lighting parameters are achieved.

[0009] In conjunction with the first aspect, in one embodiment, the drive actuator includes a micro drive motor and a micro transmission mechanism. The micro drive motor is housed within the angle adjustment gimbal, and the micro drive motor drives the LED beads to pitch and swing through the micro transmission mechanism.

[0010] In conjunction with the first aspect, in one embodiment, the main controller has a built-in parameter configuration module, which is used to store the initial calibration angle of the LED beads, and also to store the center coordinates of the light spots, the target brightness, and the target color temperature corresponding to the number of light spots differentiated on the illuminated surface.

[0011] In conjunction with the first aspect, in one implementation, the parameter configuration module integrates a human-computer interaction interface, which is used to remotely adjust the center coordinates of the light spot, the target brightness value, and the target color temperature.

[0012] In conjunction with the first aspect, in one embodiment, the illuminated surface feedback acquisition module includes: The spot image acquisition unit is used to acquire images of the center position and outline of the spot in the illuminated area in real time. A multi-point light intensity sensing unit is used to collect real-time illumination values ​​at multiple points in the illuminated area; The color temperature detection unit is used to collect color temperature data of the illuminated area.

[0013] In conjunction with the first aspect, in one embodiment, the light spot image acquisition unit adopts a high-definition miniature industrial camera; the multi-point light intensity sensing unit is composed of distributed photosensitive illuminance sensors, which are evenly arranged around the angle adjustment gimbal; and the color temperature detection unit adopts a miniature spectrometer.

[0014] In conjunction with the first aspect, in one embodiment, the refined lighting control system further includes a power supply module, which is used to supply power to the main controller, the illuminated surface feedback acquisition module, all LED beads, and all drive actuators; the power supply module is also used to adjust the current of the LED beads when it receives an instruction from the main controller to adjust the brightness; the power supply module is also used to adjust the current ratio of each channel of the multi-color chip of the LED beads when it receives an instruction from the main controller to adjust the color temperature.

[0015] Secondly, embodiments of this application provide a control method for a refined lighting control system based on the above-mentioned multi-LED lamp, comprising the following steps: S1: System power-on initialization, all LED beads pitch angles are zeroed and calibrated, and the preset target lighting parameters in the main controller are read; S2: The illumination surface feedback acquisition module synchronously acquires the light spot image, multi-point brightness data and color temperature data of the illuminated surface area; S3: The main controller performs feature calculations on the target lighting parameters and the acquired data to obtain at least one set of spot center offset, brightness difference and color temperature difference; calculates and obtains the pitch angle compensation of each LED, the current correction of each LED, the current ratio correction of each channel of the multi-color chip of each LED, and performs the adjustment. S4: Repeatedly perform data acquisition, calculation, and adjustment until the preset target lighting parameters are achieved.

[0016] In conjunction with the second aspect, in one embodiment, when the illuminated area is a whole illuminated area, and part of the area is illuminated by ambient light while the other part is not, the target illumination parameters include a light spot center coordinate, a target brightness, and a target color temperature; the current correction amount of the lamp bead is different in the area with ambient light compared to the area without ambient light, and the current ratio correction amount of each channel of the multi-color chip of the lamp bead is different.

[0017] In conjunction with the second aspect, in one implementation, if the illuminated surface is divided into two illuminated areas with different requirements, the target illumination parameters include two spot center coordinates, two target brightness values, and two target color temperatures; after cyclically performing acquisition, calculation, and adjustment, the two illuminated areas present two different illumination requirements.

[0018] The beneficial effects of the technical solutions provided in this application include: 1. The refined lighting control system of this application, by setting a drive actuator for each LED bead in a multi-LED lamp, can adjust the pitch and oscillation of each LED bead, thereby enabling more flexible adjustment of the overall light emission angle. It also allows for a regular setting of the orientation and spacing of all LED beads, ensuring good brightness uniformity and solving the technical problem of central glare and insufficient edge illumination in traditional LED lamps. The drive actuator can also adjust the overall light spot position (i.e., the center position of the light spot), effectively solving the problem of light spot deviation that is common in traditional LED lamps. Furthermore, it can divide the illuminated surface of an LED lamp into two or more large light spots, allowing for flexible local adjustment. The main controller can adjust the current of each LED bead, thereby adjusting the brightness of each LED bead, and thus enabling overall and continuous adjustment of the brightness of the entire illuminated surface. Simultaneously, when all LED bead illumination areas are divided into two or more large light spots, it can adjust the brightness of the two large light spots in a zoned and continuous manner to meet the needs of special scenarios (e.g., areas with sunlight and areas with shadows at sunset). By embedding a multi-color chip in each LED, the main controller controls the current ratio of each channel of the multi-color chip in each LED, thereby achieving the purpose of adjusting the color temperature. Similarly, it can also adjust the color temperature in different zones to meet the needs of special scenarios. The refined lighting control system of this application performs refined lighting control through target lighting parameters and real-time collected illumination data of the illuminated surface. It eliminates the need for manual adjustment, effectively improves lighting quality and illumination uniformity, reduces operation and maintenance costs, has strong environmental adaptability, and can be widely adapted to a variety of high-requirement lighting scenarios. It has outstanding advantages such as high degree of automation and precise adjustment.

[0019] 2. The control method of the multi-LED luminaire's refined lighting control system of this application cyclically performs data acquisition, calculation, and adjustment. The calculation obtains the pitch angle compensation amount, current correction amount, and current ratio correction amount for each LED chip channel of each LED, and then performs adjustments until the preset target lighting parameters are achieved, meeting the requirements for refined lighting control. Through the target lighting parameters and real-time acquired illumination data of the illuminated surface, no manual adjustment is required, effectively improving lighting quality, enhancing illumination uniformity, reducing maintenance costs, and exhibiting strong environmental adaptability, making it widely applicable to various high-requirement lighting scenarios. Furthermore, the control method of the multi-LED luminaire's refined lighting control system of this application can use a single LED luminaire to differentiate and adjust the overall illumination area, creating a single lighting effect to meet the needs of special scenarios. Furthermore, the control method of the multi-LED lamp's refined lighting control system of this application can use one LED lamp to differentiate and adjust two illumination areas with different requirements, presenting two lighting effects for the two illumination areas with two different lighting requirements, thus meeting the needs of special scenarios. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a refined lighting control system provided in an embodiment of this application (dashed lines represent power supply, solid lines represent control). Figure 2 This is a flowchart illustrating the control method of the refined lighting control system provided in this application embodiment. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0023] This application provides a refined lighting control system for LED lamps. By using target lighting parameters and real-time collected illumination data of the illuminated surface, it can perform refined lighting control, which can more flexibly adjust the overall light output angle, and can adjust the brightness and color temperature locally. It also solves the technical problems of light spot deviation and poor brightness uniformity.

[0024] Firstly, such as Figure 1 As shown, this application discloses a refined lighting control system for multi-LED lamps. The refined lighting control system includes LED lamps, a surface illumination feedback acquisition module, and a main controller.

[0025] The LED light fixture includes an angle-adjustable pan / tilt head and several LED chips. The pan / tilt head has several mounting holes arranged in an array, and the LED chips are installed one by one in each of these holes. Each LED chip contains a multi-color chip used to adjust the color temperature. A drive actuator is installed in each mounting hole, connecting the LED chip and the pan / tilt head. The drive actuator is used to tilt and oscillate the LED chip. Specifically, in the initial state, the LED chip's axis is perpendicular to the pan / tilt head; tilting and oscillating refers to a change in the angle between the LED chip's axis and the pan / tilt head.

[0026] Specifically, the multi-color chip contains at least two colors: cool white and warm white.

[0027] The illumination feedback acquisition module is fixedly deployed on the side facing the illuminated surface to obtain the actual situation of the illuminated surface. The module collects the light spot, brightness, and color temperature of the illuminated surface. Specifically, the light spot mainly includes the center position of the light spot to ensure accurate illumination; the brightness includes the brightness of the entire illuminated surface, as well as brightness uniformity data to ensure brightness and uniformity; the color temperature mainly includes the need for overall color temperature adjustment or local color temperature adjustment.

[0028] The main controller signal is connected to the drive actuator and the illumination surface feedback acquisition module. The main controller is used to obtain light spot, brightness and color temperature data from the illumination surface feedback acquisition module, and compare them with the preset target lighting parameters. It calculates and obtains the angle correction, brightness correction and color temperature correction. Then, the main controller adjusts the lamp pitch angle through the drive actuator, adjusts the current of each lamp, and adjusts the current ratio of each channel of the multi-color chip of each lamp until the preset target lighting parameters are achieved.

[0029] Specifically, the current of the LED can be adjusted within a set safe range.

[0030] Specifically, the main controller controls all drive actuators and independently adjusts the pitch angle of each LED bead to adjust the position of the light spot center of each LED bead, thereby adjusting the position of the entire light spot center. It can also perform local adjustments, so that instead of forming a single light spot, it forms two independent large light spots. The two large light spots can be spaced apart or not spaced apart, thus having two light spot center positions.

[0031] The main controller controls the current of each LED, thus changing its brightness. Normally, all LEDs receive the same current; when brightness needs to be adjusted, the current is increased or decreased synchronously. In some special cases, half of the LEDs may receive a relatively higher current to create a brighter area, while the other half receive a relatively lower current to create a darker area.

[0032] The main controller controls the current ratio of each channel of the multi-color chip for each LED. For example, when the two-color chip includes cool white and warm white, the current of the LED is 1A, and the current ratio of the cool white and warm white channels changes from 2:8 to 5:5, thus achieving the purpose of adjusting the color temperature.

[0033] Specifically, the main controller has multi-channel independent output control capability and multi-node data interaction capability, and supports multi-point synchronous control and bidirectional information transmission.

[0034] Specifically, the target illumination parameters can be preset values. If it is a single spot, this includes the center position of the spot, brightness data for achieving uniform brightness, and color temperature data. If it is divided into two spots, this includes the center position of each spot, brightness data for achieving uniform brightness, and color temperature data. If it is divided into three spots, the settings are performed sequentially.

[0035] This application's refined lighting control system, by setting a drive actuator for each LED in a multi-LED lamp, enables the pitch and oscillation adjustment of each LED, thereby allowing for more flexible adjustment of the overall light emission angle. It also ensures that the orientation and spacing of all LEDs are regularly set, guaranteeing good brightness uniformity and solving the technical problem of central glare and insufficient edge illumination in traditional LED lamps. The drive actuator can also adjust the overall light spot position (i.e., the center position of the light spot), effectively solving the problem of light spot deviation that is common in traditional LED lamps. Furthermore, it can divide the illuminated surface of an LED lamp into two or more large light spots, allowing for flexible local adjustment. The main controller can adjust the current of each LED, thereby adjusting the brightness of each LED, and thus enabling overall and continuous adjustment of the brightness of the entire illuminated surface. Simultaneously, when all LED illumination areas are divided into two or more large light spots, it can adjust the brightness of the two large light spots in a zoned and continuous manner to meet the needs of special scenarios (e.g., areas with sunlight and areas with shadows at sunset). By embedding a multi-color chip in each LED, the main controller controls the current ratio of each channel of the multi-color chip in each LED, thereby achieving the purpose of adjusting the color temperature. Similarly, it can also adjust the color temperature in different zones to meet the needs of special scenarios. The refined lighting control system of this application performs refined lighting control through target lighting parameters and real-time collected illumination data of the illuminated surface. It eliminates the need for manual adjustment, effectively improves lighting quality and illumination uniformity, reduces operation and maintenance costs, has strong environmental adaptability, and can be widely adapted to a variety of high-requirement lighting scenarios. It has outstanding advantages such as high degree of automation and precise adjustment.

[0036] Furthermore, in one embodiment, the drive actuator includes a micro drive motor and a micro transmission mechanism. The micro drive motor is housed within an angle adjustment gimbal, and the micro drive motor drives the LED beads to pitch and swing through the micro transmission mechanism.

[0037] Furthermore, in one embodiment, the main controller has a built-in parameter configuration module, which is used to store the initial calibration angle of all LED beads. Under normal circumstances, the initial calibration angle of all LED beads is perpendicular to the angle adjustment gimbal.

[0038] The parameter configuration module is also used to store the center coordinates of the light spots corresponding to the number of light spots differentiated on the illuminated surface, the target brightness value, and the target color temperature.

[0039] Specifically, if the illuminated surface is a single spot of light, it has a center coordinate, a target brightness value, and a target color temperature. In this scenario, if one part of the entire spot of light is illuminated (not exceeding the target brightness) while the other part is not illuminated, LED lights are used to supplement the light, ultimately ensuring that the target brightness and target color temperature of the entire spot meet the standards.

[0040] If the illuminated surface is divided into two large light spots, then it has two center coordinates of the light spots, two target brightness values, and two target color temperatures.

[0041] Specifically, the illuminated surface and the LED lights are in the same coordinate system.

[0042] The refined lighting control system of this application has a parameter configuration module for storing the initial calibration angle of the lamp beads, as well as the center coordinates of the light spot corresponding to the number of light spots on the illuminated surface, the target brightness value, and the target color temperature. It can adjust the entire light spot synchronously, adjust the entire light spot according to different situations, and adjust the light spot in different zones. The adjustment is flexible and meets the lighting requirements of high-demand special scenes.

[0043] Furthermore, in one embodiment, the parameter configuration module integrates a human-machine interface, which is used to remotely adjust the center coordinates of the light spot, the target brightness value, and the target color temperature.

[0044] The refined lighting control system of this application supports manual issuance of operation instructions, setting of target parameters, and real-time feedback of equipment operating status, realizing complete human-machine interaction functions.

[0045] In another embodiment, the main controller includes a wireless communication module, which is used to remotely modify parameters and remotely manually intervene and adjust the angle, achieving the same function as the human-machine interface.

[0046] Furthermore, in one embodiment, the surface illumination feedback acquisition module includes a spot image acquisition unit, a multi-point light intensity sensing unit, and a color temperature detection unit. The spot image acquisition unit, the multi-point light intensity sensing unit, and the color temperature detection unit all face the illuminated surface. Specifically, if the illuminated surface is divided into two or more large spots, the acquisition range of the spot image acquisition unit, the multi-point light intensity sensing unit, and the color temperature detection unit encompasses all large spots.

[0047] The spot image acquisition unit is used to acquire the center position and outline image of the spot in the illuminated area in real time. Specifically, the spot center position is used to determine if there is a positional deviation, and the spot outline image is used to determine if the illuminated surface is within the set range. If the spot center position deviates, the actuator is driven to adjust it until the spot center position reaches the target position. The spot outline image further ensures that the illumination does not deviate.

[0048] The multi-point light intensity sensing unit is used to collect real-time brightness values ​​at multiple points on the illuminated area. Specifically, it is used to determine whether the brightness is sufficient and whether the brightness is uniform. If it is not bright enough, the LED current is increased; if it is not uniform enough, the LED pitch angle is adjusted.

[0049] The color temperature detection unit is used to collect ambient color temperature data of the illuminated area. Specifically, if there is a color temperature deviation, the current ratio of each channel of the multi-color chip of each LED is adjusted.

[0050] Specifically, the main controller is connected to the spot image acquisition unit, the multi-point light intensity sensing unit, and the color temperature detection unit, respectively, and receives data from the spot image acquisition unit, the multi-point light intensity sensing unit, and the color temperature detection unit.

[0051] The refined lighting control system of this application includes a light spot image acquisition unit, a multi-point light intensity sensing unit, and a color temperature detection unit in the illuminated surface feedback acquisition module. It provides all-round feedback on the illuminated surface and then makes adjustments based on the feedback data to ensure that the light spot does not shift, the brightness is sufficient and uniform, and the target color temperature is achieved, thus realizing high-quality and high-requirement lighting.

[0052] Furthermore, in one example, the spot image acquisition unit uses a high-definition miniature industrial camera.

[0053] The multi-point light intensity sensing unit consists of distributed photosensitive illuminance sensors, evenly arranged around the circumference of the angle adjustment gimbal. The color temperature detection unit uses a miniature spectrometer.

[0054] Specifically, the high-definition miniature industrial camera, the distributed photosensitive illuminance sensor, and the miniature spectrometer are all oriented towards the illuminated surface.

[0055] Furthermore, in one embodiment, the refined lighting control system also includes a power supply module, which supplies power to the main controller, the illuminated surface feedback acquisition module, all LEDs, and all drive actuators.

[0056] The power supply module is also used to adjust the current of the LED beads when it receives a command from the main controller to adjust the brightness; specifically, it compares the actual brightness with the target brightness of the target lighting parameters and then adjusts the current.

[0057] The power supply module is also used to adjust the current ratio of each channel of the multi-color chip when it receives a command from the main controller to adjust the color temperature. Specifically, it compares the actual color temperature with the target color temperature of the target lighting parameters, and then adjusts the current ratio of each channel of the multi-color chip.

[0058] Specifically, the multi-color chip contains sub-chips with different color temperatures (such as cool white + warm white), and the current ratio of each sub-chip can be adjusted independently (i.e., the current ratio of each channel of the multi-color chip). Increasing the proportion of cool light will increase the color temperature, and increasing the proportion of warm light will decrease the color temperature.

[0059] Preferably, the micro drive motor is a micro brushless servo motor or a digital servo motor, and the micro transmission mechanism is a gear transmission mechanism or a micro linkage transmission mechanism.

[0060] Preferably, the main control processing module has a built-in PID closed-loop control logic to eliminate the problems of excessive adjustment and lag in the lamp bead angle adjustment process, thereby improving the accuracy and stability of angle adjustment.

[0061] Furthermore, the main controller incorporates a spot feature extraction algorithm, a brightness calculation algorithm, a color temperature processing algorithm, and a closed-loop angle correction algorithm. Firstly, by comparing the actual spot center position with the target spot center coordinates, the spot feature extraction algorithm calculates the first factor for angle correction. Secondly, the brightness calculation algorithm determines whether the brightness is uniform; if not, uniformity is used as the second factor for angle correction. The main controller's closed-loop angle correction algorithm comprehensively considers both the first and second angle correction factors to adjust the pitch angle of all LEDs. The brightness calculation algorithm also determines whether the brightness is sufficient, adjusting the current of each LED to reduce excessive brightness or increase insufficient brightness. The color temperature processing algorithm further determines whether the color temperature deviates, further adjusting the current ratio of each channel in the multi-color chip of each LED.

[0062] Secondly, such as Figure 2 As shown, this application also includes a control method for a refined lighting control system based on the above-mentioned multi-LED lamp, comprising the following steps: S1: System power-on initialization, zero-calibration of the pitch angle of all LED beads, and reading the preset target lighting parameters in the main controller; zero-calibration of the pitch angle of all LED beads means that all LED beads are perpendicular to the angle adjustment pan-tilt head.

[0063] S2: The illumination surface feedback acquisition module synchronously acquires the light spot image, multi-point brightness data and color temperature data of the illuminated surface area to complete the real-time acquisition of multi-dimensional lighting status information. S3: The main controller performs feature calculations on the target lighting parameters and the acquired data to obtain at least one set of spot center offset, brightness difference and color temperature difference; calculates and obtains the pitch angle compensation of each LED, the current correction of each LED, the current ratio correction of each channel of the multi-color chip of each LED, and performs the adjustment. Specifically, at least one set of spot center offset, brightness difference, and color temperature difference is obtained. For a single spot, one set of spot center offset, brightness difference, and color temperature difference is obtained, i.e., one spot center offset, one brightness difference, and one color temperature difference. For two spots, two sets of spot center offset, brightness difference, and color temperature difference are obtained, i.e., two spot center offsets, two brightness differences, and two color temperature differences.

[0064] Specifically, the brightness difference includes the difference between the brightness itself and the target brightness, as well as the difference within the illuminated area itself, i.e., whether the brightness is uniform. If the brightness of the illuminated area is uneven, it needs to be adjusted to be uniform. If it is uneven, the pitch angle compensation amount for each LED is calculated by solving the unevenness of the light spot center offset and the brightness difference; if it is uniform, the pitch angle compensation amount for each LED is calculated by solving the light spot center offset.

[0065] S4: Execute the acquisition, calculation, and adjustment cycle until the preset target illumination parameters are reached. Target illumination parameters refer to the fact that the center of the light spot reaches the target position or the light spot offset meets the preset qualified threshold, while the brightness of the illuminated area is up to standard and uniform, and the color temperature of the illuminated area meets the requirements. The control method of the fine lighting control system for multi-LED lamps in this application cyclically performs data acquisition, calculation, and adjustment. The calculation obtains the pitch angle compensation amount, current correction amount, and current ratio correction amount of each LED chip channel for each LED, and performs adjustment until the preset target lighting parameters are reached to meet the requirements of fine lighting control. Through the target lighting parameters and the real-time collected illumination data of the illuminated surface, no manual adjustment is required, which effectively improves the lighting quality, increases the uniformity of illumination, reduces operation and maintenance costs, has strong environmental adaptability, can be widely adapted to a variety of high-requirement lighting scenarios, and has outstanding advantages such as high degree of automation and precise adjustment.

[0066] Furthermore, following step S4, step S5 is also included, which includes: The system continuously monitors the lighting status of the illuminated surface in real time. When the actual lighting parameter deviation is detected to exceed the set floating threshold, the adaptive angle adjustment process is automatically restarted to complete the secondary adaptation under dynamic working conditions.

[0067] Furthermore, in one embodiment, when the illuminated area is a whole illuminated area, and part of the area is illuminated by ambient light while the other part is not, the target illumination parameters include a spot center coordinate, a target brightness value, and a target color temperature.

[0068] The current correction amount for LED chips differs between areas with ambient light and areas without ambient light, and the current ratio correction amount for each channel of the multi-color chip in the LED chips also differs.

[0069] The method of the fine lighting control system of multi-LED lamps in this application can use a single LED lamp to differentiate and adjust the overall illumination area, which is illuminated by ambient light in one part and not in another part, to present a lighting effect and meet the needs of special scenarios.

[0070] Furthermore, in one embodiment, if the illuminated surface is divided into two illuminated areas with different requirements, the target illumination parameters include two spot center coordinates, two target brightness values, and two target color temperatures; After repeatedly performing data acquisition, calculation, and adjustment, two illumination areas with different lighting requirements are identified.

[0071] The control method of the multi-LED lamp's fine lighting control system of this application can use one LED lamp to differentiate and adjust two illumination areas with different requirements, presenting two lighting effects for the two illumination areas with two different lighting requirements, thus meeting the needs of special scenarios.

[0072] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0073] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A refined lighting control system for multi-LED lamps, characterized in that, Include: LED lighting fixtures include an angle adjustment gimbal and several LED beads. The angle adjustment gimbal has several mounting holes, and the LED beads are arranged in an array and installed in the mounting holes. Each LED bead has a built-in multi-color chip. Each mounting hole is equipped with a drive actuator, which is connected to the LED bead and the angle adjustment gimbal to realize the pitch and swing of the LED bead. The surface illumination feedback acquisition module is fixedly installed on the side facing the surface to collect the light spot, brightness and color temperature of the surface. The main controller is connected to the drive actuator and the illumination surface feedback acquisition module. The main controller is used to acquire light spot, brightness and color temperature data, and compare them with preset target lighting parameters. Then, it adjusts the lamp pitch angle, the current of each lamp, and the current ratio of each channel of the multi-color chip of each lamp through the drive actuator until the preset target lighting parameters are achieved.

2. The refined lighting control system for a multi-LED lamp as described in claim 1, characterized in that: The drive actuator includes a micro drive motor and a micro transmission mechanism. The micro drive motor is housed within the angle adjustment gimbal, and the micro drive motor drives the LED beads to tilt and swing through the micro transmission mechanism.

3. The refined lighting control system for a multi-LED lamp as described in claim 1, characterized in that: The main controller has a built-in parameter configuration module, which is used to store the initial calibration angle of the lamp beads, as well as the center coordinates of the light spots, target brightness, and target color temperature corresponding to the number of light spots differentiated on the illuminated surface.

4. The refined lighting control system for a multi-LED lamp as described in claim 1, characterized in that: The parameter configuration module integrates a human-computer interaction interface, which is used to remotely adjust the center coordinates of the light spot, the target brightness value, and the target color temperature.

5. The refined lighting control system for a multi-LED lamp as described in claim 1, characterized in that, The illuminated surface feedback acquisition module includes: The spot image acquisition unit is used to acquire images of the center position and outline of the spot in the illuminated area in real time. A multi-point light intensity sensing unit is used to collect real-time illumination values ​​at multiple points in the illuminated area; The color temperature detection unit is used to collect color temperature data of the illuminated area.

6. The refined lighting control system for a multi-LED lamp as described in claim 5, characterized in that: The spot image acquisition unit uses a high-definition miniature industrial camera; The multi-point light intensity sensing unit is composed of distributed photosensitive illuminance sensors, which are evenly arranged around the angle adjustment gimbal. The color temperature detection unit uses a miniature spectrometer.

7. The refined lighting control system for a multi-LED lamp as described in claim 1, characterized in that: The refined lighting control system also includes a power supply module, which is used to supply power to the main controller, the illuminated surface feedback acquisition module, all lamp beads and all drive actuators; The power supply module is also used to adjust the current of the LED beads when it receives an instruction from the main controller to adjust the brightness; the power supply module is also used to adjust the current ratio of each channel of the multi-color chip of the LED beads when it receives an instruction from the main controller to adjust the color temperature.

8. A control method for a refined lighting control system based on the multi-LED lamp of claim 1, characterized in that, Includes the following steps: S1: System power-on initialization, all LED beads pitch angles are zeroed and calibrated, and the preset target lighting parameters in the main controller are read; S2: The illumination surface feedback acquisition module synchronously acquires the light spot image, multi-point brightness data and color temperature data of the illuminated surface area; S3: The main controller performs feature calculations on the target lighting parameters and the acquired data to obtain at least one set of spot center offset, brightness difference and color temperature difference; calculates and obtains the pitch angle compensation of each LED, the current correction of each LED, the current ratio correction of each channel of the multi-color chip of each LED, and performs the adjustment. S4: Repeatedly perform data acquisition, calculation, and adjustment until the preset target lighting parameters are achieved.

9. The control method of the refined lighting control system for multi-LED lamps as described in claim 8, characterized in that: When the illuminated area is a whole illuminated area, and part of the area is illuminated by ambient light while the other part is not, the target illumination parameters include a spot center coordinate, a target brightness, and a target color temperature; the current correction amount of the lamp bead is different in the area with ambient light compared to the area without ambient light, and the current ratio correction amount of each channel of the multi-color chip of the lamp bead is different.

10. The control method of the refined lighting control system for multi-LED lamps as described in claim 8, characterized in that: If the illuminated surface is divided into two illuminated areas with different requirements, the target illumination parameters include the coordinates of the center of two light spots, two target brightness values, and two target color temperatures; after cyclically performing acquisition, calculation, and adjustment, the two illuminated areas present two different illumination requirements.

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