A multi-primary color LED lighting method and system

Through the multi-primary LED light emission method, the multi-channel current control technology is used to perform independent current control of each basic light color, which solves the problem that a single light source cannot intelligently adjust the brightness in the existing technology, and achieves lighting effects and stability with strong environmental adaptability.

CN114727442BActive Publication Date: 2025-08-19JIANGXI YUMING SMART OPTOELECTRONICS CO LTD
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Patent Information

Application Number
CN202210449250.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-24
Publication Date
2025-08-19
Estimated Expiration
2042-04-24

AI Technical Summary

Technical Problem

The existing LED light emission methods are limited to a single light source, and cannot intelligently switch the light emission brightness according to the real-time situation of the installation environment, resulting in a reduced user experience.

Method used

The multi-primary LED light emission method is adopted, and the target current adjustment range of each basic light color in the multi-primary light source is obtained, and the multi-channel current control technology is used to perform independent current control, and the luminous brightness and light color are adjusted according to environmental parameters.

Benefits of technology

It realizes intelligent adjustment of luminous brightness and light color according to the environmental brightness and color difference, improves lighting effects and stability, and enhances user experience and practicality.

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Abstract

The present invention discloses a multi-primary color LED luminescence method and system, the method comprising: obtaining a target current adjustment range for each basic light color in a multi-primary color light source in an LED lamp tube; based on the target current adjustment range of each basic light color, independently controlling the current of each basic light color through a multi-channel current control technology; determining the target luminous brightness of the LED lamp tube according to environmental parameters in a target space; and adjusting the output current of each basic light color to configure a target light color corresponding to the target luminous brightness. By providing a multi-primary color light source in an LED lamp tube, the LED lamp tube can emit lighting light of different brightnesses according to different ambient brightness, thereby improving the lighting effect and practicality in the environment. At the same time, it can avoid the mixing and interlacing of basic light color light sources, thereby affecting the lighting effect, and improving the lighting stability.
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Description

Technical Field

[0001] The present invention relates to the field of LED lighting technology, and in particular to a multi-primary color LED lighting method and system. Background Art

[0002] Cold cathode lamps, also known as fluorescent lamps or fluorescent lighting systems, have long been widely used for interior lighting in automobiles, aircraft, buildings, various signs, and ships. More recently, fluorescent lamps have also been adopted for exterior automotive lighting and various exterior signage. However, fluorescent lamps have limitations in their functionality and use. Key drawbacks include a short lifespan, poor durability, fragility, high replacement costs, high manufacturing costs for specialized lamps, limited color options, and electromagnetic interference that can negatively impact other electronic devices. The production of fluorescent lamps and the toxic chemicals in damaged tubes after replacement can cause significant environmental damage. Furthermore, the flickering produced by improperly installed or aged fluorescent lamps can be seriously harmful to people with health conditions. Inconsistent light color is a common problem and complaint for users who frequently need to replace fluorescent lamps. Fluorescent lighting systems are also not suitable for use in extremely cold or hot environments. In order to solve the above problems, researchers have developed LED lamps to replace traditional fluorescent lamps. LED lamps not only have better lighting effects and ultra-low power consumption, but also have many advantages such as long service life and no radiation to the human body. They are deeply favored by users. The existing LED lighting method is to set a light source in the LED lamp tube to turn on the power to emit light. It is limited to a single light source and cannot intelligently switch the lighting brightness according to the real-time situation of the installation environment. The limitations are greatly increased, which reduces the user experience. Summary of the Invention

[0003] In response to the problems shown above, the present invention provides a multi-primary color LED lighting method and system to solve the problem mentioned in the background technology that the existing LED lighting method is limited to a single light source and cannot intelligently switch the lighting brightness according to the real-time conditions of the installation environment, which greatly increases the limitations and reduces the user experience.

[0004] A multi-primary color LED luminescence method comprises the following steps:

[0005] Obtaining a target current adjustment range for each primary light color in a multi-primary light source in an LED lamp tube;

[0006] Based on the target current adjustment range of each basic light color, independently controlling the current of each basic light color through a multi-channel current control technology;

[0007] Determine the target luminous brightness of the LED lamp according to the environmental parameters in the target space;

[0008] The output current of each basic light color is adjusted to configure the target light color corresponding to the target luminous brightness.

[0009] Preferably, the step of obtaining the target current adjustment range of each primary light color in the multi-primary light source in the LED lamp tube includes:

[0010] Determining a color rendering range of each basic light color in the multi-primary color light source;

[0011] Determine a first current adjustment range of each basic light color according to the color rendering range of each basic light color;

[0012] Determining the voltage gain of the circuit in which the LED lamp is located;

[0013] The first current adjustment range of each basic light color is adjusted according to the voltage gain to obtain a second current adjustment range, and the second current adjustment range is determined as a target current adjustment range for the basic light color.

[0014] Preferably, the target current adjustment range of each basic light color is based on the multi-channel current control technology to independently control the current of each basic light color, including:

[0015] Determine the delay compensation of the target current adjustment range for each basic light color under the operating current of the circuit where the LED lamp is located;

[0016] Determine the optimal control current sequence for each basic light color according to the current delay compensation of the basic light color;

[0017] Setting a unique power control channel for each basic light color through the multi-channel current control technology;

[0018] The optimal control current sequence for each basic light color is introduced into the power supply control channel corresponding to the basic light color to achieve independent current control of a single basic light color.

[0019] Preferably, determining the target luminous brightness of the LED lamp according to the environmental parameters in the target space includes:

[0020] Collecting environmental parameters related to brightness in the target space;

[0021] Analyzing the environmental parameters to obtain an analysis result, and determining the current natural brightness in the target space according to the analysis result;

[0022] Evaluate the current visibility in the target space according to the current natural brightness;

[0023] The target luminous brightness of the LED lamp is determined according to the difference between the current visibility and the preset standard visibility.

[0024] Preferably, before adjusting the output current of each basic light color to configure the target light color corresponding to the target luminous brightness, the method further includes:

[0025] Determining the ambient color difference within the target space;

[0026] Matching the color rendering ratio of each basic light color in the multi-primary light source according to the ambient color difference to obtain a matching result;

[0027] Constructing a simulated lighting environment according to the ambient color difference of the target space, generating simulated light according to the matching result and irradiating the simulated lighting environment to determine the lighting effect;

[0028] The lighting effect is uploaded to the user terminal to enable it to make a decision. When the user confirms the lighting option, the simulated light color of the simulated light is obtained as the target light color corresponding to the target luminous brightness.

[0029] Preferably, the adjusting the output current of each basic light color to configure the target light color corresponding to the target luminous brightness includes:

[0030] Obtaining a standard spectrum corresponding to the target light color;

[0031] Performing component analysis on the standard spectrum to obtain its multiple component light colors and the color rendering index ratio of each component light color;

[0032] Determine the target basic light color that needs to adjust the current according to the ratio of multiple component light colors in the standard spectrum;

[0033] Determine the color rendering of each target basic light color in the standard spectrum according to the color rendering index ratio of each component light color, perform current pairing on the color rendering conditions, and obtain a pairing result;

[0034] The output current of each target basic light color is adjusted according to the current pairing result of the target basic light color to configure the target light color.

[0035] Preferably, the method of setting a unique power control channel for each basic light color by using the multi-channel current control technology includes:

[0036] Obtaining the illumination distribution of the LED lamp;

[0037] Determine the light matrix arrangement result of the LED lamp light source according to the light distribution;

[0038] Allocate basic light colors to each dot matrix in the light emitting dot matrix arrangement result according to the color rendering ratio of each basic light color in the multi-primary color light source, and obtain an allocation result;

[0039] Based on the allocation result, a unique power control channel is set for each dot matrix in the light-emitting dot matrix arrangement result through multi-channel current control technology.

[0040] Preferably, the method further comprises:

[0041] Collect the lighting effect diagram of the target space under the target light color;

[0042] Constructing a brightness matrix corresponding to the target light color according to the lighting characteristics of each pixel in the lighting effect image;

[0043] Determining a light compensation for the mixed light corresponding to the target light color, and determining a light saturation correction coefficient for each matrix factor in the brightness matrix according to the light compensation;

[0044] The illumination brightness of the mixed light is adaptively adjusted according to the light saturation correction coefficient, and the target space is illuminated by the mixed light after the adjusted brightness.

[0045] Preferably, determining the optimal control current sequence of each basic light color according to the current delay compensation of the basic light color includes:

[0046] To calculate the current adjustment range of each basic light color and the controllable degree range under the current delay compensation of the basic light color through the cost function;

[0047] Confirm the target current adjustment range within the preset control range to be the optimal control current range for each basic light color;

[0048] A sequence value corresponding to each current value within the optimal control current range of each basic light color is obtained, and an optimal control current sequence for each basic light color is generated according to the sequence value.

[0049] A multi-primary color LED lighting system, comprising:

[0050] An acquisition module is used to obtain a target current adjustment range for each basic light color in a multi-primary light source in an LED lamp tube;

[0051] a control module, configured to independently control the current of each basic light color through a multi-channel current control technology based on a target current adjustment range of each basic light color;

[0052] A determination module, used to determine the target luminous brightness of the LED lamp according to the environmental parameters in the target space;

[0053] The adjustment module is used to adjust the output current of each basic light color to configure the target light color corresponding to the target luminous brightness.

[0054] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0055] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0057] Figure 1 This is a workflow diagram of a multi-primary color LED luminescence method provided by the present invention;

[0058] Figure 2 Another working flow chart of a multi-primary color LED luminescence method provided by the present invention;

[0059] Figure 3 Another workflow diagram of a multi-primary color LED emitting method provided by the present invention;

[0060] Figure 4 This is a structural schematic diagram of a multi-primary color LED lighting system provided by the present invention. DETAILED DESCRIPTION

[0061] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0062] Cold cathode lamps, also known as fluorescent lamps or fluorescent lighting systems, have long been widely used for interior lighting in automobiles, aircraft, buildings, various signs, and ships. More recently, fluorescent lamps have also been adopted for exterior automotive lighting and various exterior signage. However, fluorescent lamps have limitations in their functionality and use. Key drawbacks include a short lifespan, poor durability, fragility, high replacement costs, high manufacturing costs for specialized lamps, limited color options, and electromagnetic interference that can negatively impact other electronic devices. The production of fluorescent lamps and the toxic chemicals in damaged tubes after replacement can cause significant environmental damage. Furthermore, the flickering produced by improperly installed or aged fluorescent lamps can be seriously harmful to people with health conditions. Inconsistent light color is a common problem and complaint for users who frequently need to replace fluorescent lamps. Fluorescent lighting systems are also not suitable for use in extremely cold or hot environments. To address the aforementioned issues, researchers have developed LED lamps to replace traditional fluorescent lamps. These lamps offer not only superior lighting performance and ultra-low power consumption, but also a long lifespan and lack of radiation to the human body, making them highly popular with users. Existing LED lighting methods rely on installing a light source within an LED tube and then connecting it to a power source for illumination. These methods are limited to a single light source and cannot intelligently switch the brightness based on the real-time conditions of the installation environment. This significantly increases limitations and reduces the user experience. To address the aforementioned issues, this embodiment discloses a multi-primary-color LED lighting method.

[0063] A multi-primary color LED luminescence method, such as Figure 1 As shown, the following steps are included:

[0064] Step S101: obtaining a target current adjustment range for each primary light color in a multi-primary light source in an LED lamp tube;

[0065] Step S102: Based on the target current adjustment range of each basic light color, independently control the current of each basic light color through a multi-channel current control technology;

[0066] Step S103: determining the target luminous brightness of the LED lamp according to the environmental parameters in the target space;

[0067] Step S104 : adjusting the output current of each basic light color to configure a target light color corresponding to the target luminous brightness.

[0068] The working principle of the above technical solution is: obtain the target current adjustment range of each basic light color in the multi-primary color light source in the LED lamp tube, based on the target current adjustment range of each basic light color, independently control the current of each basic light color through multi-channel current control technology, determine the target luminous brightness of the LED lamp tube according to the environmental parameters in the target space, and adjust the output current of each basic light color to configure the target light color corresponding to the target luminous brightness.

[0069] The beneficial effects of the above technical solution are as follows: by providing a multi-primary color light source in an LED tube, the LED tube can emit light of varying brightness depending on the ambient brightness, thereby improving the lighting effect and practicality within the environment. Furthermore, by utilizing multi-channel current control technology to independently control the current of each primary color, the mixing and interleaving of primary color light sources, which would affect the lighting effect, can be avoided, thereby improving lighting stability. This solves the problem that the existing technology is limited to a single light source and cannot intelligently switch the luminous brightness according to the real-time conditions of the installation environment, which greatly increases the limitations and reduces the user experience.

[0070] In one embodiment, obtaining the target current adjustment range of each primary light color in the multi-primary light source in the LED lamp tube includes:

[0071] Determining a color rendering range of each basic light color in the multi-primary color light source;

[0072] Determine a first current adjustment range of each basic light color according to the color rendering range of each basic light color;

[0073] Determining the voltage gain of the circuit in which the LED lamp is located;

[0074] The first current adjustment range of each basic light color is adjusted according to the voltage gain to obtain a second current adjustment range, and the second current adjustment range is determined as a target current adjustment range for the basic light color.

[0075] The beneficial effects of the above technical solution are: by determining the current adjustment range of each basic light color through secondary condition restrictions, a precise control current range can be obtained and the control current range of each basic light color can be made free from conflict with the operating parameters of the circuit where the LED lamp is located, thereby improving compatibility and stability.

[0076] In one embodiment, Figure 2 As shown, the target current adjustment range of each basic light color is based on the multi-channel current control technology to independently control the current of each basic light color, including:

[0077] Step S201: Determine the delay compensation of the target current adjustment range of each basic light color under the operating current of the circuit where the LED lamp is located;

[0078] Step S202: determining the optimal control current sequence of each basic light color according to the current delay compensation of the basic light color;

[0079] Step S203: Setting a unique power control channel for each basic light color by using the multi-channel current control technology;

[0080] Step S204 : Importing the optimal control current sequence of each basic light color into the power control channel corresponding to the basic light color to achieve independent current control of a single basic light color.

[0081] The beneficial effects of the above technical solution are: by determining the optimal control current sequence for each basic light color, each basic light color light source can be controlled more stably, further improving stability; further, by setting a unique power supply channel for each basic light color, rational utilization of electric energy can be achieved, thereby improving practicality and further achieving energy saving.

[0082] In this embodiment, the delay compensation for determining the target current adjustment range for each basic light color under the operating current of the circuit in which the LED lamp is located includes:

[0083] Determine the control current delay state quantity of each basic light color according to the target current adjustment range of each basic light color;

[0084] Calculate the delay correction coefficient of each basic light color according to the control current delay state quantity of each basic light color;

[0085] Calculate the optimal state delay value of the basic light color according to the delay correction coefficient of each basic light speed and the control current delay state quantity;

[0086] Obtaining a delay gain of the circuit operating current;

[0087] Determine the timing deviation of the control current of each basic light color under the delay gain of the circuit working current according to the delay gain;

[0088] Determine the delay length of the control current of each basic light color under the circuit working current according to the timing deviation of each basic light color and the optimal state delay value of the basic light color;

[0089] A compensation function is defined for the delay length of the control current of each basic light color under the circuit operating current to obtain a definition result;

[0090] The delay compensation of the target current adjustment range of each basic light color under the operating current of the circuit where the LED lamp is located is calculated according to the target compensation function in the definition result.

[0091] The beneficial effect of the above technical solution is that the delay parameters of the control current of each basic light color can be accurately obtained and the corresponding delay compensation can be accurately calculated, so that the final calculation result is more accurate and consistent with its own parameters, ensuring the accuracy and objectivity of the calculation result.

[0092] In one embodiment, Figure 3 As shown, the method of determining the target luminous brightness of the LED lamp according to the environmental parameters in the target space includes:

[0093] Step S301: collecting environmental parameters related to brightness in the target space;

[0094] Step S302: Analyze the environmental parameters to obtain analysis results, and determine the current natural brightness in the target space according to the analysis results;

[0095] Step S303: Evaluate the current visibility in the target space according to the current natural brightness;

[0096] Step S304: determining the target luminous brightness of the LED lamp according to the difference between the current visibility and the preset standard visibility.

[0097] The beneficial effects of the above technical solution are: by determining the natural brightness in the target space based on the environmental parameters in the target space, the natural brightness can be reasonably and accurately determined according to the parameter changes, and then it can be judged whether lighting is needed, thereby improving work efficiency. Furthermore, by utilizing the visibility difference of the target space to determine the target luminous brightness of the LED lamp, it is possible to ensure the lighting efficiency of the target space and avoid excessive loss of electric energy, and to perform lighting with an adaptive luminous brightness, further improving practicality.

[0098] In one embodiment, before adjusting the output current of each basic light color to configure the target light color corresponding to the target luminous brightness, the method further includes:

[0099] Determining the ambient color difference within the target space;

[0100] Matching the color rendering ratio of each basic light color in the multi-primary light source according to the ambient color difference to obtain a matching result;

[0101] Constructing a simulated lighting environment according to the ambient color difference of the target space, generating simulated light according to the matching result and irradiating the simulated lighting environment to determine the lighting effect;

[0102] The lighting effect is uploaded to the user terminal to enable it to make a decision. When the user confirms the lighting option, the simulated light color of the simulated light is obtained as the target light color corresponding to the target luminous brightness.

[0103] The beneficial effect of the above technical solution is that it enables users to adaptively understand and select intelligently matched target light colors, further improving the user experience and practicality.

[0104] In one embodiment, adjusting the output current of each basic light color to configure a target light color corresponding to a target luminous brightness includes:

[0105] Obtaining a standard spectrum corresponding to the target light color;

[0106] Performing component analysis on the standard spectrum to obtain its multiple component light colors and the color rendering index ratio of each component light color;

[0107] Determine the target basic light color that needs to adjust the current according to the ratio of multiple component light colors in the standard spectrum;

[0108] Determine the color rendering of each target basic light color in the standard spectrum according to the color rendering index ratio of each component light color, perform current pairing on the color rendering conditions, and obtain a pairing result;

[0109] The output current of each target basic light color is adjusted according to the current pairing result of the target basic light color to configure the target light color.

[0110] The beneficial effects of the above technical solution are: the light color components and proportions of the mixed light of the target light color can be intuitively determined through the standard spectrum, and then the basic light color of the current to be adjusted can be quickly determined and the current can be adjusted to quickly configure the target light color, further ensuring the lighting effect of the target space.

[0111] In one embodiment, the multi-channel current control technology is used to set a unique power control channel for each basic light color, including:

[0112] Obtaining the illumination distribution of the LED lamp;

[0113] Determine the light matrix arrangement result of the LED lamp light source according to the light distribution;

[0114] Allocate basic light colors to each dot matrix in the light emitting dot matrix arrangement result according to the color rendering ratio of each basic light color in the multi-primary color light source, and obtain an allocation result;

[0115] Based on the allocation result, a unique power control channel is set for each dot matrix in the light-emitting dot matrix arrangement result through multi-channel current control technology.

[0116] The beneficial effect of the above technical solution is that by obtaining the luminous dot array arrangement results of the LED tube light source, each basic light color in the multi-primary color light source can be quickly arrayed, thereby laying the foundation for the subsequent setting of a unique power supply idle channel for each basic light color, further improving work efficiency and control stability.

[0117] In one embodiment, the method further comprises:

[0118] Collect the lighting effect diagram of the target space under the target light color;

[0119] Constructing a brightness matrix corresponding to the target light color according to the lighting characteristics of each pixel in the lighting effect image;

[0120] Determining a light compensation for the mixed light corresponding to the target light color, and determining a light saturation correction coefficient for each matrix factor in the brightness matrix according to the light compensation;

[0121] The illumination brightness of the mixed light is adaptively adjusted according to the light saturation correction coefficient, and the target space is illuminated by the mixed light after the adjusted brightness.

[0122] The beneficial effects of the above technical solution are: it can avoid the occurrence of light pollution and reduce the sensitivity of the user's eyes to mixed light, further improving the user experience and practicality.

[0123] In one embodiment, determining the optimal control current sequence of each basic light color according to the current delay compensation of the basic light color includes:

[0124] To calculate the current adjustment range of each basic light color and the controllable degree range under the current delay compensation of the basic light color through the cost function;

[0125] Confirm the target current adjustment range within the preset control range to be the optimal control current range for each basic light color;

[0126] A sequence value corresponding to each current value within the optimal control current range of each basic light color is obtained, and an optimal control current sequence for each basic light color is generated according to the sequence value.

[0127] The beneficial effect of the above technical solution is that the optimal control current range of each basic light color can be accurately determined according to the cost function, thereby making the data more convincing and further ensuring the stability of the power control for each basic light color.

[0128] This embodiment also discloses a multi-primary color LED lighting system, such as Figure 4 As shown, the system includes:

[0129] An acquisition module 401 is used to acquire a target current adjustment range for each primary light color in a multi-primary light source in an LED lamp tube;

[0130] A control module 402 is configured to independently control the current of each basic light color using a multi-channel current control technology based on the target current adjustment range of each basic light color;

[0131] A determination module 403 is configured to determine a target luminous brightness of the LED lamp according to environmental parameters in the target space;

[0132] The adjustment module 404 is configured to adjust the output current of each basic light color to configure a target light color corresponding to a target luminous brightness.

[0133] The working principle and beneficial effects of the above technical solution have been described in the method claims and will not be repeated here.

[0134] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow from the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0135] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A multi-primary color LED luminescence method, characterized in that: The following steps are involved: Obtaining a target current adjustment range for each primary light color in a multi-primary light source in an LED lamp tube; Based on the target current adjustment range of each basic light color, independently controlling the current of each basic light color through a multi-channel current control technology; Determine the target luminous brightness of the LED lamp according to the environmental parameters in the target space; Adjust the output current of each basic light color to configure the target light color corresponding to the target luminous brightness; The method of independently controlling the current of each basic light color by using a multi-channel current control technology based on the target current adjustment range of each basic light color includes: Determine the delay compensation of the target current adjustment range for each basic light color under the operating current of the circuit where the LED lamp is located; Determine the optimal control current sequence for each basic light color according to the current delay compensation of the basic light color; Setting a unique power control channel for each basic light color through the multi-channel current control technology; Importing the optimal control current sequence of each basic light color into the power supply control channel corresponding to the basic light color to achieve independent current control of a single basic light color; Determine the delay compensation of the target current adjustment range for each basic light color under the operating current of the circuit where the LED lamp is located, including: Determine the control current delay state quantity of each basic light color according to the target current adjustment range of each basic light color; Calculate the delay correction coefficient of each basic light color according to the control current delay state quantity of each basic light color; Calculate the optimal state delay value of each basic light color according to the delay correction coefficient of each basic light color and the control current delay state quantity; Obtaining a delay gain of the circuit operating current; Determine the timing deviation of the control current of each basic light color under the delay gain of the circuit working current according to the delay gain; Determine the delay length of the control current of each basic light color under the circuit working current according to the timing deviation of each basic light color and the optimal state delay value of the basic light color; A compensation function is defined for the delay length of the control current of each basic light color under the circuit operating current to obtain a definition result; The delay compensation of the target current adjustment range of each basic light color under the operating current of the circuit where the LED lamp is located is calculated according to the target compensation function in the definition result.

2. The multi-primary color LED emitting method according to claim 1, characterized in that: The step of obtaining a target current adjustment range for each primary light color in a multi-primary light source in an LED lamp tube includes: Determining a color rendering range of each basic light color in the multi-primary color light source; Determine a first current adjustment range of each basic light color according to the color rendering range of each basic light color; Determining the voltage gain of the circuit in which the LED lamp is located; The first current adjustment range of each basic light color is adjusted according to the voltage gain to obtain a second current adjustment range, and the second current adjustment range is determined as a target current adjustment range for the basic light color.

3. The multi-primary color LED emitting method according to claim 1, characterized in that: Determining the target luminous brightness of the LED lamp according to the environmental parameters in the target space includes: Collecting environmental parameters related to brightness in the target space; Analyzing the environmental parameters to obtain an analysis result, and determining the current natural brightness in the target space according to the analysis result; Evaluate the current visibility in the target space according to the current natural brightness; The target luminous brightness of the LED lamp is determined according to the difference between the current visibility and the preset standard visibility.

4. The multi-primary color LED emitting method according to claim 1, characterized in that: Before adjusting the output current of each basic light color to configure the target light color corresponding to the target luminous brightness, the method further includes: Determining the ambient color difference within the target space; Matching the color rendering ratio of each basic light color in the multi-primary light source according to the ambient color difference to obtain a matching result; Constructing a simulated lighting environment according to the ambient color difference of the target space, generating simulated light according to the matching result and irradiating the simulated lighting environment to determine the lighting effect; The lighting effect is uploaded to the user terminal to enable it to make a decision. When the user confirms the lighting option, the simulated light color of the simulated light is obtained as the target light color corresponding to the target luminous brightness.

5. The multi-primary color LED emitting method according to claim 1, characterized in that: The adjusting the output current of each basic light color to configure the target light color corresponding to the target luminous brightness includes: Obtaining a standard spectrum corresponding to the target light color; Performing component analysis on the standard spectrum to obtain its multiple component light colors and the color rendering index ratio of each component light color; Determine the target basic light color that needs to adjust the current according to the ratio of multiple component light colors in the standard spectrum; Determine the color rendering of each target basic light color in the standard spectrum according to the color rendering index ratio of each component light color, perform current pairing on the color rendering conditions, and obtain a pairing result; The output current of each target basic light color is adjusted according to the current pairing result of the target basic light color to configure the target light color.

6. The multi-primary color LED emitting method according to claim 1, characterized in that: The multi-channel current control technology is used to set a unique power control channel for each basic light color, including: Obtaining the illumination distribution of the LED lamp; Determine the light matrix arrangement result of the LED lamp light source according to the light distribution; Allocate basic light colors to each dot matrix in the light emitting dot matrix arrangement result according to the color rendering ratio of each basic light color in the multi-primary color light source, and obtain an allocation result; Based on the allocation result, a unique power control channel is set for each dot matrix in the light-emitting dot matrix arrangement result through multi-channel current control technology.

7. The multi-primary color LED emitting method according to claim 1, characterized in that: The method further comprises: Collect the lighting effect diagram of the target space under the target light color; Constructing a brightness matrix corresponding to the target light color according to the lighting characteristics of each pixel in the lighting effect image; Determining a light compensation for the mixed light corresponding to the target light color, and determining a light saturation correction coefficient for each matrix factor in the brightness matrix according to the light compensation; The illumination brightness of the mixed light is adaptively adjusted according to the light saturation correction coefficient, and the target space is illuminated by the mixed light after the adjusted brightness.

8. The multi-primary color LED emitting method according to claim 1, characterized in that: The determining of the optimal control current sequence of each basic light color according to the current delay compensation of the basic light color includes: To calculate the current adjustment range of each basic light color and the controllable degree range under the current delay compensation of the basic light color through the cost function; Confirm the target current adjustment range within the preset control range to be the optimal control current range for each basic light color; A sequence value corresponding to each current value within the optimal control current range of each basic light color is obtained, and an optimal control current sequence for each basic light color is generated according to the sequence value.

9. A multi-primary color LED lighting system, characterized in that: The system includes: An acquisition module is used to obtain a target current adjustment range for each basic light color in a multi-primary light source in an LED lamp tube; a control module, configured to independently control the current of each basic light color through a multi-channel current control technology based on a target current adjustment range of each basic light color; A determination module, used to determine the target luminous brightness of the LED lamp according to the environmental parameters in the target space; An adjustment module, used to adjust the output current of each basic light color to configure a target light color corresponding to a target luminous brightness; The method of independently controlling the current of each basic light color by using a multi-channel current control technology based on the target current adjustment range of each basic light color includes: Determine the delay compensation of the target current adjustment range for each basic light color under the operating current of the circuit where the LED lamp is located; Determine the optimal control current sequence for each basic light color according to the current delay compensation of the basic light color; Setting a unique power control channel for each basic light color through the multi-channel current control technology; Importing the optimal control current sequence of each basic light color into the power supply control channel corresponding to the basic light color to achieve independent current control of a single basic light color; Determine the delay compensation of the target current adjustment range for each basic light color under the operating current of the circuit where the LED lamp is located, including: Determine the control current delay state quantity of each basic light color according to the target current adjustment range of each basic light color; Calculate the delay correction coefficient of each basic light color according to the control current delay state quantity of each basic light color; Calculate the optimal state delay value of each basic light color according to the delay correction coefficient of each basic light color and the control current delay state quantity; Obtaining a delay gain of the circuit operating current; Determine the timing deviation of the control current of each basic light color under the delay gain of the circuit working current according to the delay gain; Determine the delay length of the control current of each basic light color under the circuit working current according to the timing deviation of each basic light color and the optimal state delay value of the basic light color; A compensation function is defined for the delay length of the control current of each basic light color under the circuit operating current to obtain a definition result; The delay compensation of the target current adjustment range of each basic light color under the operating current of the circuit where the LED lamp is located is calculated according to the target compensation function in the definition result.

Citation Information

Patent Citations

  • Adjusting system and method for light-emitting unit

    CN103857126A