Lamp lighting control circuit, lamp and lamp lighting control system

Abstract

This application discloses a lighting control circuit, a lighting fixture, and a lighting control system. The lighting control circuit includes: a controller, which outputs control commands based on user-configured lighting parameters of a target lighting fixture to control the dimming of at least one of a plurality of light sources included in the target lighting fixture; the control commands include parameter configuration commands for configuring the lighting parameters and execution commands for controlling the dimming; and a plurality of dimming modules, which are respectively connected to the controller and the plurality of light sources, wherein different dimming modules are connected to different light sources, and the corresponding dimming modules dim the at least one light source based on the control commands.

Description

Technical Field

[0001] This application relates to the field of electronic control technology, and in particular to a lighting control circuit, a lighting fixture, and a lighting control system. Background Technology

[0002] In the field of lighting, existing luminaires, such as those comprising multiple LED light sources, are typically controlled centrally as a whole. This means that the pixel areas corresponding to each of the light sources in the luminaire are controlled together. The controller of the luminaire sends control signals to all the light sources in the luminaire, and all the light sources respond to the control signals simultaneously or do not respond simultaneously.

[0003] This centralized control method suffers from inflexibility, limited lighting effects, and restricts the application of lighting fixtures in complex environments. Summary of the Invention

[0004] The purpose of this application is to provide a lighting control circuit, a lighting fixture, and a lighting control system to solve the problem of inflexibility in the overall control of the lighting source.

[0005] To solve the above-mentioned technical problems, this specification is implemented as follows: In a first aspect, a lighting control circuit for a lamp is provided, comprising: The controller, based on the lighting parameters of the target luminaire configured by the user, outputs control instructions to control the dimming of at least one of the multiple light sources included in the target luminaire. The control instructions include parameter configuration instructions for configuring the lighting parameters and execution instructions for controlling the dimming. Multiple dimming modules are connected to the controller and the multiple light sources respectively. Different dimming modules are connected to different light sources. The corresponding dimming module dims at least one light source based on the control command.

[0006] Optionally, the lighting parameters include the pixel values ​​of the dimming light source configured by the user, the pixels of the dimming light source corresponding to form a first light strip area of ​​the target luminaire, and the pixels of the target luminaire other than the dimming light source corresponding to form a second light strip area of ​​the target luminaire. The controller is configured to convert the pixel values ​​of the first light strip area into grayscale values ​​and send a control command carrying the grayscale values ​​to a dimming module connected to the dimming light source in the first light strip area. The pixel values ​​include the R, G, and B values ​​of the corresponding color and the W value of the corresponding brightness.

[0007] Optionally, the controller is further configured to: Stop sending control commands to the dimming module connected to the light source corresponding to the second light strip area; or Send a control command carrying a grayscale value of 0 to the dimming module connected to the light source corresponding to the second light strip area.

[0008] Optionally, the lighting parameters may also include the dynamic switching frequency of the light source to be dimmed.

[0009] Optionally, the controller is further configured to: Convert the pixel values ​​at different times corresponding to the dynamic switching frequency into grayscale values; Control commands carrying the corresponding grayscale values ​​are sent to the corresponding dimming modules at different times.

[0010] Optionally, the controller is further configured to: Before sending the control command, the dimming module corresponding to the light source to be dimmed is initialized and configured to take effect.

[0011] Optionally, the dimming module is based on unipolar return-to-zero code communication.

[0012] Optionally, the dimming module is used for: The grayscale value carried by the control command received based on the dynamic switching frequency is converted into a PWM signal; The PWM signal is sent to the corresponding connected light source to perform stepless dimming of the light source. The PWM signal includes color power corresponding to R value, G value, B value and brightness power corresponding to W value.

[0013] Optionally, the dimming modules are cascaded and communicate with each other, with one of the dimming modules connected to the controller.

[0014] Optionally, the lighting parameters include a user-configured target image. The controller is used to extract the pixel values ​​of the target image, convert the pixel values ​​into grayscale values, and send a control command carrying the grayscale values ​​to the dimming module connected to the at least one light source. The pixel values ​​include the R value, G value, B value of the corresponding color and the W value of the corresponding brightness.

[0015] In a second aspect, a luminaire is provided, comprising multiple light sources and a luminaire lighting control circuit as described in the first aspect. The lighting control circuit controls the dimming of at least one of the plurality of light sources based on the lighting parameters configured by the user. The at least one light source presents corresponding brightness and color based on the dimming. The at least one light source is combined with the corresponding dimming module in a one-to-one correspondence and is evenly arranged according to the shape and structure of the lamp.

[0016] Thirdly, a lighting control system is provided, including a user terminal and a lighting fixture as described in the second aspect. The user terminal is used to receive the lighting parameters of the target lamp configured by the user and send them to the lamp lighting control circuit.

[0017] In this embodiment, the lighting control circuit includes a controller and multiple dimming modules. The controller outputs control commands based on user-configured lighting parameters of the target luminaire to control the dimming of at least one of the multiple light sources included in the target luminaire. The control commands include parameter configuration commands for configuring the lighting parameters and execution commands for controlling the dimming. The multiple dimming modules are respectively connected to the controller and the multiple light sources. Different dimming modules are connected to different light sources. Each dimming module dims the at least one light source based on the control commands. This allows users to flexibly set the number of light sources for lighting display through software configuration, enabling individual or group control of each light source. The software can be used to trim and configure any number of light sources and the length of the light strip to adapt to different application scenarios, thereby achieving flexible control of the luminaire's light sources and dynamic lighting display effects. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a structural block diagram of a lighting control circuit and a corresponding lighting fixture and lighting control system according to an embodiment of this application.

[0019] Figure 2 This is a flowchart of the dimming control steps of the controller of the lighting control circuit of the lamp in this application embodiment. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. The drawing numbers in this application are only used to distinguish the various steps in the solution and are not used to limit the execution order of the various steps. The specific execution order is subject to the description in the specification.

[0021] To address the problems existing in the prior art, embodiments of this application provide a lighting control circuit, a lighting fixture, and a lighting control system.

[0022] like Figure 1 As shown, the lighting control circuit 100 of this application embodiment includes: a controller 1400, which outputs control commands based on the lighting parameters of the target luminaire configured by the user to control the dimming of at least one of the multiple light sources 1800 included in the target luminaire, the control commands including parameter configuration commands for configuring the lighting parameters and execution commands for controlling the dimming; and multiple dimming modules 1600, which are respectively connected to the controller 1400 and the multiple light sources 1800, the light sources 1800 connected to different dimming modules 1600, wherein the corresponding dimming module 1600 dims the at least one light source based on the control commands.

[0023] The target luminaire includes a lighting control circuit 100 and multiple light sources 1800. The lighting control circuit 100 is connected to a user terminal 1200 and the light sources 1800. The user terminal 1200 includes devices such as mobile phones and computers. Users can configure the lighting parameters of the target luminaire through an application (APP) for lighting control installed on the user terminal 1200. Users can choose to configure the lighting parameters of only some light sources in the target luminaire, or they can choose to configure the lighting parameters of all light sources in the target luminaire, according to their desired lighting effect. In this way, different lighting parameters can make the corresponding light sources of the target luminaire present different lighting effects.

[0024] User terminal 1200 can send lighting parameters to lighting control circuit 100 of target luminaire via, for example, wireless communication.

[0025] After receiving the lighting parameters sent by the user terminal 1200, the controller 1400 of the lighting control circuit 100 generates corresponding control commands, including parameter configuration commands for configuring lighting parameters and execution commands for controlling dimming. These commands are used to control the dimming of the light source corresponding to the target luminaire. The light source can be all the light sources of the target luminaire or only some of the light sources, depending on the configured lighting parameters.

[0026] Based on user configuration, controller 1400 sends control commands to the corresponding dimming module 1600. The dimming module 1600 that receives the control commands is connected to a light source 1800 with corresponding lighting parameters. The dimming module 1600 dims the corresponding light source 1800 based on the control commands.

[0027] The luminaire includes multiple light sources 1800, and multiple dimming modules 1600 can be connected and communicate with each of the multiple light sources 1800 in a one-to-one correspondence, or one dimming module 1600 can correspond to multiple light sources 1800. Each dimming module 1600 corresponds to a different light source 1800; that is, the same light source 1800 can only communicate with one dimming module 1600. In terms of layout, based on the shape and structure of the luminaire and the arrangement of the light sources, each dimming module 1600 can be combined with its corresponding connected light sources and arranged evenly. Thus, each dimming module 1600 can dim one or a group of connected light sources 1800, and correspondingly, the controller 1400 can flexibly perform independent or individual local lighting control on each light source of the target luminaire. This solves the problem of inflexibility in centralized control of the entire luminaire, allowing the luminaire to provide more and more complex desired lighting effects and enabling its application in complex scene environments.

[0028] In one embodiment, the lighting parameters include pixel values ​​of a user-configured light source to be dimmed, the pixels of the light source to be dimmed corresponding to form a first light strip area of ​​the target luminaire, and the pixels of the target luminaire other than the light source to be dimmed corresponding to form a second light strip area of ​​the target luminaire. The controller 1400 is used to convert the pixel values ​​of the first light strip area into grayscale values ​​and send a control command carrying the grayscale values ​​to a dimming module connected to the light source to be dimmed in the first light strip area. The pixel values ​​include R, G, and B values ​​corresponding to the color and W value corresponding to the brightness.

[0029] In the above embodiments, when configuring lighting parameters, the user can select at least one light source from the target luminaire as the dimming source on the front-end interface of the user terminal 1200, and configure the corresponding pixel values ​​for each dimming source. The number of dimming modules 1600 connected to the dimming source and the number of corresponding configured pixel values ​​are in a multiple relationship, for example, one to one, where one dimming module 1600 corresponds to one pixel value, or multiple to one, where multiple dimming modules 1600 correspond to one pixel value.

[0030] For example, multiple light sources of a target lighting fixture can be divided into multiple segments, each with a corresponding number or length of light sources. Users can select the corresponding light strip segment that needs dimming to form the first light strip area to be dimmed. For LED light sources, pixel values ​​include the R, G, and B values ​​for the corresponding color and the W value for the corresponding brightness. By setting the R, G, B, and W values ​​of each light source in the first light strip area of ​​the selected light strip segment, the lighting color and brightness displayed by the light source in the corresponding first light strip area can be configured.

[0031] After receiving the lighting parameters from the user terminal 1200, the controller 1400 converts the pixel values ​​corresponding to the first light strip area into grayscale values, converts the multi-channel R, G, B, and W values ​​into a single grayscale value, and sends a control command carrying the grayscale value to the dimming module 1600 connected to the dimming light source in the first light strip area.

[0032] Specifically, the multi-channel includes four channels corresponding to R, G, B, and W values. Taking the value corresponding to each channel as 8 bits as an example, the controller 1400 can convert the R, G, B, and W values ​​corresponding to each pixel into 8-bit grayscale values ​​respectively, and arrange them in the order of R, G, B, and W, thereby obtaining a single grayscale value including 4*8=32 bits. The controller 1400 then carries the 32-bit single-channel grayscale value in the control command and sends it to the dimming module 1600.

[0033] Of course, the controller 1400 can convert the R value, G value, B value, and W value corresponding to each pixel into grayscale values ​​of other bit lengths, such as 16 bits, which can yield a single grayscale value of 4*16=64 bits.

[0034] In addition, control commands can also carry the identifier (ID) or location of the pixel to be controlled. For example, in the header of the data packet corresponding to the control command, the identifier or location of the pixel to be controlled is represented by an 8-bit value, and in the data part of the data packet, the color and brightness of the pixel to be controlled are represented by the corresponding number of bits (32 bits or 64 bits) of a single grayscale value.

[0035] By dividing the light source corresponding to all pixels in the lamp into a first light strip area that needs dimming and a second light strip area that does not need dimming, and then arranging the LED light source and dimming module in a uniform manner according to the shape and structure of the lamp, the dimming modules communicate with each other through cascaded signal lines to achieve dynamic lighting with single-point control.

[0036] Optionally, the controller 1400 is further configured to: stop sending control commands to the dimming module connected to the light source corresponding to the second light strip area; or send a control command carrying a grayscale value of 0 to the dimming module connected to the light source corresponding to the second light strip area.

[0037] The second light strip area is the area in the target lighting fixture other than the first light strip area; that is, the light strip segment formed by light sources that do not require dimming. Therefore, the controller can stop sending control commands to the dimming modules connected to the light sources in the second light strip area, or send a control command with a grayscale value of 0, thereby causing the corresponding dimming modules to stop dimming the light sources in the second light strip area.

[0038] Users can configure the corresponding light source of the target light fixture to continuously display a constant lighting effect, or they can configure the corresponding light source of the target light fixture to display different lighting effects at different times, displaying the light at different dynamic frequencies.

[0039] Optionally, the lighting parameters may also include the dynamic switching frequency of the light source to be dimmed.

[0040] In other words, users can dynamically switch the frequency to select different light sources to be dimmed at different times, and the corresponding pixel values ​​can also change. For example, if the target lighting fixture includes light sources corresponding to segments A, B, and C, the user can configure the light source in segment A at time 1, the light source in segment B at time 2, the light source in segment C at time 3, and so on. Furthermore, the pixel values ​​of the light sources at different times 1, 2, and 3 can also be configured to be different. Thus, the target lighting fixture can present dynamically changing lighting effects at different times with corresponding dynamic switching frequencies.

[0041] Correspondingly, the controller 1400 is also configured to: convert the pixel values ​​at different times corresponding to the dynamic switching frequency into grayscale values; and send control commands carrying the corresponding grayscale values ​​to the corresponding dimming module 1600 at different times.

[0042] For the configuration parameters of the dynamically changing lighting display effect, the controller 1400 can calculate the grayscale value corresponding to the pixel value in the configuration parameters at one time, and send the converted grayscale value corresponding to the pixel value configured by the light source to be dimmed at that time to the dimming module 1600 connected to the light source to be dimmed at that time at different times corresponding to the configuration parameters.

[0043] Alternatively, for different times, the controller 1400 can sequentially calculate the grayscale value of the corresponding pixel at the current time, and send it to the corresponding dimming module 1600 after the calculation at the current time is completed.

[0044] By rapidly refreshing all pixel values ​​at different times using the controller 1400, dynamic lighting effects such as flowing water and running horses can be achieved. It can also simulate special graphic effects based on the specific pixels of the configured light source.

[0045] For dynamic lighting effects such as flowing water and running lights, users can also configure the speed and direction of change of the dynamic lighting effects of the corresponding light sources to be dimmed. For example, the controller 1400 refreshes the grayscale value of each light source to be dimmed at the corresponding moment according to the configured speed, direction and the corresponding light source to be dimmed and its pixel value, so as to realize dynamic effects such as flowing water, running lights, and rhythm.

[0046] In an embodiment of partial dimming of light sources in a target lighting fixture, the dimming module 1600 connected to the remaining light sources that do not need dimming in the second light strip area can be disabled, and only the dimming module corresponding to the light source to be dimmed in the first light strip area can be retained.

[0047] Optionally, the controller 1400 is further configured to: initialize and configure the dimming module corresponding to the light source to be dimmed to take effect before sending the control command.

[0048] The controller 1400 can configure the dimming module 1600 according to the lighting parameters. For example, if there are 200 dimming modules 1600 corresponding to all the light sources 1800 of the target luminaire, and the dimming modules 1600 corresponding to the lighting parameters configured by the user are 120, then the controller 1400 can select the 120 dimming modules 1600 to be active through initialization, and disable the remaining 80 dimming modules. The controller 1400 only sends control commands to the active dimming modules 1600.

[0049] For embodiments where the lighting display effect dynamically changes at different times, the controller 1400 needs to reconfigure the number of light sources to be dimmed at each corresponding time and reinitialize the dimming module 1600 corresponding to that time. Through the initialization operation, dimming modules 1600 that are not needed during dimming can be disabled in software, thereby cutting off the light sources connected to the corresponding disabled dimming modules 1600 without manually physically disconnecting the light sources to be cut off, improving the convenience and timeliness of light source cutting. This allows for software cutting and configuration of any number of light sources and light strip length to adapt to different application scenarios, thereby achieving flexible control of light sources and dynamic lighting display effects.

[0050] In one embodiment, the dimming module 1600 is based on unipolar return-to-zero (NRZ) code communication. NRZ code uses binary 1 and 0 to represent high and zero levels, respectively. Through NRZ code communication, the dimming module 1600 can be easily connected via a single wire. For example, the dimming module 1600 can use a constant current chip with 65535 gray levels. Therefore, the dimming module 1600 can dim the light source based on the gray level value sent by the controller 1400.

[0051] Specifically, the dimming module 1600 is used to: convert the grayscale value carried by the control command received based on the dynamic switching frequency into a PWM signal; send the PWM signal to the corresponding connected light source to perform stepless dimming of the light source, wherein the PWM signal includes color power corresponding to R value, G value, B value and brightness power corresponding to W value.

[0052] Specifically, after receiving the control command sent by the controller 1400, the dimming module 1600 can obtain the identifier or position of the corresponding pixel by parsing the header of the data packet corresponding to the control command. By parsing the data portion corresponding to a single grayscale value in the data packet corresponding to the control command, the color and brightness of the corresponding pixel can be obtained. Furthermore, based on the arrangement order of R, G, B, and W values ​​corresponding to a single grayscale value, the R, G, B, and W values ​​of the multi-channel corresponding to the pixel can be obtained.

[0053] Taking a single grayscale value comprising 32 bits and grayscale values ​​arranged in the order of R, G, B, W as an example, the dimming module 1600 can obtain the corresponding 8-bit R, G, B, and W values ​​for each pixel by parsing the grayscale value. Therefore, based on the parsed R, G, B, and W values, the corresponding PWM signal can be obtained. The PWM signal includes the color power corresponding to the R, G, and B values ​​and the brightness power corresponding to the W value.

[0054] The 1600 dimming module can achieve stepless dimming of a corresponding light source based on unipolar PWM, where the pulse width modulation (PWM) waveform varies only within a unipolar range in half a cycle. Stepless dimming is a digital dimming method that uses PWM signals to achieve dimming, allowing for precise adjustment of the brightness and color temperature of the corresponding light source. Stepless dimming is suitable for locations requiring frequent dimming and with unstable lighting conditions, offering advantages such as precision, efficiency, and convenience, and providing more suitable lighting display effects for different application scenarios.

[0055] In one embodiment, the dimming modules are cascaded and communicate with each other, and one of the dimming modules 1600 is connected to the controller 1400.

[0056] In this embodiment, the dimming modules 1600 are connected to form a hardware cascaded network through a cascade interface, and the cascaded dimming modules 1600 communicate with each other through unipolar return-to-zero code.

[0057] The controller 1400 can connect to only one of the multiple dimming modules 1600 and send control commands. The control commands carry the address and corresponding grayscale value of each light source to be dimmed at the current time. Through this dimming module, the control commands can be passed to other dimming modules along a cascading path. Each dimming module parses the transmitted control commands, obtains the address-corresponding grayscale value that matches the address of the corresponding connected light source, and uses it for dimming the corresponding connected light source.

[0058] By cascading multiple dimming modules in the hardware, the design of lighting control circuits can be simplified and the cost of the circuits can be reduced.

[0059] In another embodiment, the lighting parameters include a target image configured by the user. The controller 1400 is used to extract the pixel values ​​of the target image, convert the pixel values ​​into grayscale values, and send a control command carrying the grayscale values ​​to a dimming module connected to the at least one light source. The pixel values ​​include the R, G, and B values ​​of the corresponding color and the W value of the corresponding brightness.

[0060] In the above embodiments, when configuring lighting parameters, the user can input a target image on the front-end interface of the user terminal 1200. The image displayed is the pattern that the user configures for the target luminaire to display light. After receiving the configuration parameters including the target image, the controller 1400 first extracts the pixel values ​​of the corresponding image in the target image and converts them into grayscale values. Then, it sends control commands carrying grayscale values ​​to the multiple dimming modules 1600 of the target luminaire.

[0061] In one embodiment, the lighting parameters may only include the target image input by the user. In this case, the pixel values ​​extracted by the controller 1400 are applied to the dimming of all light sources included in the target luminaire by default, without segmentation of the light strip. The number of dimming modules 1600 connected to all the light sources to be dimmed is in a multiple relationship with the number of pixel values ​​extracted by the controller 1400, for example, one to one, where one dimming module 1600 corresponds to one pixel value, or multiple to one, where multiple dimming modules 1600 correspond to one pixel value.

[0062] The controller 1400 distributes the converted grayscale values ​​equally to each dimming module 1600, and each dimming module 1600 adjusts the illumination of the corresponding connected light source based on the distributed grayscale values.

[0063] In other embodiments, the lighting parameters may also include a portion of the user-selected dimming light source to be segmented into light strips. For example, the selected portion of the dimming light source forms a first light strip area. In this case, the pixel values ​​extracted by the controller 1400 are applied by default to the portion of the user-selected dimming light source. The number of dimming modules connected to the portion of the dimming light source is a multiple of the number of pixel values ​​extracted by the controller 1400.

[0064] In the above embodiments, by using a user-configured image, the corresponding light source of the target lamp can display a static lighting effect of the pattern corresponding to the image. Thus, the image colors can be converted to specific pixels of the lamp to simulate the lighting effect of special or customized patterns.

[0065] Furthermore, the lighting parameters can also include different images corresponding to different times. Accordingly, the controller can extract the pixel values ​​of the corresponding images at different times and control the corresponding dimming module 1600 to dim the light source at the corresponding time. Thus, at different times, the corresponding light source of the target luminaire can present a static lighting display effect of the image corresponding to the pattern of the different images.

[0066] The following is combined with Figure 2 The dimming control steps of the controller in the lighting control circuit are described.

[0067] like Figure 2 As shown, the controller 1400 can output control commands based on the lighting parameters of the target luminaire configured by the user through a dimming task, and control the dimming module 1600 to dim the light source.

[0068] Specifically, the following steps are included: Step 202: The dimming task obtains the lighting parameters configured by the user, including the dynamic display effect of the light (configuration of the light source and pixel value to be dimmed at different times corresponding to the dynamic switching frequency), direction and speed. Step 204: Based on the configured pixel values, dynamic display effects, required speed and direction, determine the segment size and segment dynamic color corresponding to the light source to be dimmed, and determine whether the light fixture is in dynamic mode or normal mode; dynamic mode is a mode for precise control of local pixels, and normal mode is a mode for overall gradual dimming of pixels extracted from different images. Step 206: If it is dynamic mode, then calculate the specific value that needs to be executed for the color of the corresponding local pixel point in a loop, that is, convert the corresponding pixel point value into a grayscale value. Step 208: Refresh the grayscale value of each pixel to be executed in the next stage according to a fixed time period, and send a control command carrying the grayscale value to the corresponding dimming module to execute the step of controlling the dimming module to dynamically dim the light source. Step 210: If it is normal mode, convert the colors of all extracted pixels in the image to the grayscale values ​​that need to be performed. Step 212: Send a control command carrying grayscale values ​​to the corresponding dimming module to execute the step of controlling the dimming module to dim the light source.

[0069] In this embodiment, the lighting control circuit includes a controller and multiple dimming modules. The controller outputs control commands based on user-configured lighting parameters of the target luminaire to control the dimming of at least one of the multiple light sources included in the target luminaire. The control commands include parameter configuration commands for configuring the lighting parameters and execution commands for controlling the dimming. The multiple dimming modules are respectively connected to the controller and the multiple light sources. Different dimming modules are connected to different light sources. Each dimming module dims the at least one light source based on the control commands. This allows users to flexibly set the number of light sources for lighting display through software configuration, enabling individual or group control of each light source. The software can be used to trim and configure any number of light sources and the length of the light strip to adapt to different application scenarios, thereby achieving flexible control of the luminaire's light sources and dynamic lighting display effects.

[0070] Optionally, this application embodiment also provides a lamp, including a plurality of light sources 1800 and a lamp lighting control circuit 100 as described in any of the above embodiments. The lamp lighting control circuit 100 controls the dimming of at least one of the plurality of light sources based on lighting parameters configured by the user. The at least one light source presents corresponding brightness and color based on the dimming. The at least one light source is combined with a corresponding dimming module in a one-to-one correspondence and is evenly arranged according to the shape and structure of the lamp.

[0071] The lighting control circuit 100 provided in this embodiment can achieve... Figures 1 to 2 The various processes implemented in the embodiments will not be described again here to avoid repetition.

[0072] The lighting fixtures in this application embodiment can be applied to a large canopy to simulate a real-world scene. Through user configuration, they can create a lighting stage, configure rhythmic or illuminated running tracks, or provide effects such as a running track with flowing lines. Alternatively, different lighting effects, such as blue skies and white clouds, can be achieved through customized images, thereby enhancing the stage effect. Optionally, this application embodiment also provides a lighting control system 1000, including a user terminal 1200 and the lighting fixture described in any of the above embodiments. The user terminal 1200 is used to receive the lighting parameters of the target lighting fixture configured by the user and send them to the lighting control circuit 100.

[0073] It should be noted that, in this document, 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. Unless otherwise specified, 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 that element.

[0074] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0075] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A luminaire lighting control circuit, characterized by, include: The controller dynamically presents the lighting parameters of the target image based on the target luminaire configured by the user, and outputs control instructions to control the dimming of at least one of the multiple light sources included in the target luminaire. The control instructions include parameter configuration instructions for configuring the lighting parameters and execution instructions for controlling the dimming. Multiple dimming modules are connected to the controller and the multiple light sources respectively. Different dimming modules are connected to different light sources. The corresponding dimming module dims at least one light source based on the control command. The lighting parameters include the dynamic switching frequency of the light source to be dimmed, the pixel values ​​of the light source to be dimmed at different times corresponding to the dynamic switching frequency, and the number of dimming modules connected to the light source to be dimmed and the number of pixel values ​​configured accordingly are in a multiple relationship. The control command also carries the identifier or position of the pixel to be controlled. The identifier or position of the pixel to be controlled is indicated in the header of the data packet corresponding to the control command, and the color and brightness of the pixel to be controlled are indicated by the corresponding number of bits of a single grayscale value in the data portion of the data packet. The controller is also used to: convert the pixel values ​​at different times corresponding to the dynamic switching frequency into grayscale values; and send control commands carrying the corresponding grayscale values ​​to the corresponding dimming modules at different times.

2. The circuit of claim 1, wherein, The pixels of the light source to be dimmed correspond to form the first light strip area of ​​the target lamp, and the pixels of the target lamp other than the light source to be dimmed correspond to form the second light strip area of ​​the target lamp. The controller is configured to convert the pixel values ​​of the first light strip area into grayscale values ​​and send a control command carrying the grayscale values ​​to a dimming module connected to the dimming light source in the first light strip area. The pixel values ​​include the R, G, and B values ​​of the corresponding color and the W value of the corresponding brightness.

3. The circuit of claim 2, wherein The controller is also used for: Stop sending control commands to the dimming module connected to the light source corresponding to the second light strip area; or Send a control command carrying a grayscale value of 0 to the dimming module connected to the light source corresponding to the second light strip area.

4. The circuit of claim 1, wherein, The controller is also used for: Before sending the control command, the dimming module corresponding to the light source to be dimmed is initialized and configured to take effect.

5. The circuit of claim 4, wherein, The dimming module is based on unipolar return-to-zero code communication.

6. The circuit of claim 4, wherein, The dimming module is used for: The grayscale value carried by the control command received based on the dynamic switching frequency is converted into a PWM signal; The PWM signal is sent to the corresponding connected light source to perform stepless dimming of the light source. The PWM signal includes color power corresponding to R value, G value, B value and brightness power corresponding to W value.

7. The circuit of claim 4, wherein, The dimming modules are cascaded and communicate with each other, and one of the dimming modules is connected to the controller.

8. The circuit of claim 1, wherein, The lighting parameters include the target image configured by the user. The controller is used to extract the pixel values ​​of the target image, convert the pixel values ​​into grayscale values, and send a control command carrying the grayscale values ​​to the dimming module connected to the at least one light source. The pixel values ​​include the R value, G value, B value of the corresponding color and the W value of the corresponding brightness.

9. A luminaire characterized by, Includes multiple light sources and a lighting control circuit as described in any one of claims 1 to 8. The lighting control circuit controls the dimming of at least one of the plurality of light sources based on the lighting parameters configured by the user. The at least one light source presents corresponding brightness and color based on the dimming. The at least one light source is combined with the corresponding dimming module in a one-to-one correspondence and is evenly arranged according to the shape and structure of the lamp.

10. A luminaire lighting control system characterized by, Includes a user terminal and the lighting fixture as described in claim 9. The user terminal is used to receive the lighting parameters of the target lamp configured by the user and send them to the lamp lighting control circuit.

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