CN114205949B - A method and system for controlling multiple LED light sources based on a light source controller - Google Patents

Abstract

The invention discloses a method and a system for controlling a plurality of LED light sources based on a light source controller, wherein the method comprises the following steps: obtaining a light source control instruction based on the input module, and sending the light source control instruction to the light source controller; the light source controller obtains current environment brightness data based on the feedback unit; the light source controller analyzes the light source control instruction to obtain light source control parameters contained in the light source control instruction; the light source controller generates a light source driving instruction based on the current environment brightness data and the light source control parameter; the light source controller sends the light source driving instruction to the driving module; and the driving module drives the plurality of LED light sources to work based on the light source driving instruction. In the embodiment of the invention, the control of a plurality of LED light sources on brightness and color temperature of a user is satisfied, meanwhile, the control precision is ensured, and the use experience of the user is improved.

Description

A method and system for controlling multiple LED light sources based on a light source controller

technical field

The present invention relates to the technical field of LED light source control, in particular to a method and system for controlling multiple LED light sources based on a light source controller.

Background technique

With the maturity of LED technology, multiple LED light sources are integrated on one lighting device. In order to realize the control of these LED light sources, complex hardware or software algorithms are often required for support, which requires high cost requirements; in simple hardware On this basis, the combination of relatively simple software control algorithms often cannot achieve precise control of multiple LED light sources, resulting in high cost of use for users and inability for ordinary users to experience problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides a method and system for controlling multiple LED light sources based on a light source controller, which satisfies the user's control of the brightness and color temperature of multiple LED light sources, while ensuring the controllability of Accuracy, improve user experience.

In order to solve the above technical problems, an embodiment of the present invention provides a method for controlling multiple LED light sources based on a light source controller, including an input module, a light source controller, a driving module, a feedback unit and several LED light sources; wherein the input The module is connected with the light source controller; the input end of the driving module is connected with the light source controller, and the output end is connected with the plurality of LED light sources; the feedback unit is connected with the light source controller ; the method includes:

Obtain a light source control instruction based on the input module, and send the light source control instruction to the light source controller;

obtaining, by the light source controller, current ambient brightness data based on the feedback unit;

The light source controller parses the light source control instruction to obtain the light source control parameters included in the light source control instruction;

The light source controller generates a light source driving instruction based on the current ambient brightness data and the light source control parameter;

The light source controller sends the light source driving instruction to the driving module;

The driving module drives the plurality of LED light sources to work based on the light source driving instruction.

Optionally, the obtaining a light source control instruction based on the input module, and sending the light source control instruction to the light source controller, includes:

Obtain input parameters input by the user based on the user's parameter input operation on the input module, and form the light source control instruction based on the input parameters;

The light source control instruction is sent to the light source controller based on a relevant communication protocol.

Optionally, obtaining the input parameters input by the user based on the user's parameter input operation on the input module, including:

The user performs a parameter input operation on the input module according to a preset sequence of operations of the input module based on the control requirements, and obtains the input parameters input by the user.

Optionally, the light source controller obtains current ambient brightness data based on the feedback unit, including:

Collects the brightness data of the current environment within a preset distance range in real time based on the built-in brightness acquisition sensor of the feedback unit, and converts the brightness data into a light sensitivity coefficient;

Convert the light sensitivity coefficient into an electrical signal inside the feedback unit, and send the electrical signal to the light source controller in real time;

The light source controller converts the received electrical signal into identifiable current ambient brightness data.

Optionally, the light source control parameters include control mode, light source brightness data and color temperature coefficient;

The control modes include strobe mode and PWM mode.

Optionally, the light source controller generates a light source driving instruction based on the current ambient brightness data and the light source control parameter, including:

The light source controller obtains the current control mode based on the light source control parameters, and when the current control mode is the PWM mode, calculates the corresponding color temperature coefficients of the plurality of LED light sources based on the color temperature coefficient fitting;

A light source luminance driving coefficient is calculated by fitting based on the current ambient luminance data and the light source luminance data;

The light source driving instruction is generated based on the corresponding color temperature coefficients of the plurality of LED light sources and the light source luminance driving coefficient.

Optionally, when the light source controller obtains the current control mode based on the light source control parameter, the method further includes:

When the current control mode is the stroboscopic mode, the light source driving instruction is generated according to the preset color temperature coefficient, the preset brightness light source brightness data and the stroboscopic frequency.

Optionally, the generating a light source driving instruction based on the corresponding color temperature coefficients of the plurality of LED light sources and the light source brightness driving coefficient includes:

obtaining the corresponding color temperature coefficient of the plurality of LED light sources and the color temperature coefficient and the light source luminance driving coefficient of each LED light source in the light source luminance driving coefficient;

Generate corresponding LED light source driving instructions based on the color temperature coefficient and light source brightness driving coefficient of each LED light source, and mark them to form several marked light source driving instructions;

The light source driving instruction is generated based on a combination of several labeled light source driving instructions.

Optionally, the driving module drives the several LED light sources to work based on the light source driving instruction, including:

The driving module parses the light source driving instructions to obtain LED light source driving instructions corresponding to several LED light sources;

The driving module drives the corresponding plurality of LED light sources to work according to the LED light source driving instructions corresponding to the plurality of LED light sources with constant current.

In addition, an embodiment of the present invention also provides a multiple LED light source control system based on a light source controller, the system includes an input module, a light source controller, a driving module, a feedback unit and several LED light sources; wherein the input The module is connected with the light source controller; the input end of the driving module is connected with the light source controller, and the output end is connected with the plurality of LED light sources; the feedback unit is connected with the light source controller ; wherein the system is configured to perform a plurality of LED light source control methods as described in any one of the above.

In the embodiment of the present invention, a system composed of relatively simple hardware devices is used, and the related methods are run on it, which can satisfy the user's control of the brightness and color temperature of multiple LED light sources, and at the same time ensure the accuracy of the control, which can greatly While reducing the user's use cost, it satisfies the user's precise control, so that more ordinary users can experience and improve the user's use experience.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic flowchart of a method for controlling multiple LED light sources based on a light source controller in an embodiment of the present invention;

FIG. 2 is a schematic structural composition diagram of a plurality of LED light source control systems based on a light source controller in an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Please refer to FIG. 1 . FIG. 1 is a schematic flowchart of a method for controlling multiple LED light sources based on a light source controller according to an embodiment of the present invention.

As shown in FIG. 1 , a method for controlling multiple LED light sources based on a light source controller includes an input module, a light source controller, a driving module, a feedback unit and a plurality of LED light sources; wherein the input module and the light source control The input end of the driving module is connected with the light source controller, and the output end is connected with the plurality of LED light sources; the feedback unit is connected with the light source controller; the method includes:

S11: Obtain a light source control instruction based on the input module, and send the light source control instruction to the light source controller;

In the specific implementation process of the present invention, the obtaining a light source control instruction based on the input module and sending the light source control instruction to the light source controller includes: obtaining user input based on a user's parameter input operation on the input module and form the light source control instruction based on the input parameters; send the light source control instruction to the light source controller based on a relevant communication protocol.

Further, the obtaining the input parameters input by the user based on the user's parameter input operation on the input module includes: the user performs a parameter input operation on the input module according to a preset sequence of operations of the input module based on control requirements, Get the input parameters entered by the user.

Specifically, the input parameters input by the user are obtained by the user performing a parameter input operation on the input module, and then the light source control instruction is formed according to the input parameters; the input module has buttons and/or touch keys for corresponding parameter input, and at the same time There is a display unit for displaying the parameter input operation that the user can perform and the operation sequence when the user performs the corresponding operation.

That is, the user performs the corresponding parameter input operation on the input module according to the control requirements according to the preset operation sequence built in the input module, so as to obtain the input parameters input by the user.

S12: the light source controller obtains current ambient brightness data based on the feedback unit;

In the specific implementation process of the present invention, the light source controller obtains the current environment brightness data based on the feedback unit, including: collecting the brightness data of the current environment within a preset distance range in real time based on the brightness acquisition sensor built in the feedback unit, Convert the brightness data into a light sensitivity coefficient; convert the light sensitivity coefficient into an electrical signal inside the feedback unit, and send the electrical signal to the light source controller in real time; the light source controller Convert the received electrical signal into identifiable current ambient brightness data.

Specifically, a brightness acquisition sensor is provided in the feedback unit, and the brightness acquisition sensor mainly collects the brightness data within a certain distance range of the position of the light source by the user, that is, the brightness acquisition sensor built in the feedback unit collects the brightness data within a preset distance range in real time. The brightness data of the current environment, and the brightness data of the current environment is converted into a light sensitivity coefficient according to the existing conversion method; at the same time, a digital-to-analog converter is set inside the feedback unit, and the light sensitivity coefficient is converted into an electrical signal through the digital-to-analog converter ; Then transmit the electrical signal to the light source controller according to the interface connected with the light source controller, which is an I2C interface; the light source controller converts the electrical signal to an identifiable Current ambient brightness data.

S13: The light source controller parses the light source control instruction to obtain the light source control parameters included in the light source control instruction;

In the specific implementation process of the present invention, the light source control parameters include control mode, light source brightness data and color temperature coefficient; the control mode includes stroboscopic mode and PWM mode.

Specifically, the light source controller has a built-in module for the user to identify light source control instructions, which is mainly used to analyze and identify the light source control instructions, and obtain the light source control parameters included in the light source control instructions, wherein the light source control parameters are mainly It includes control mode, light source brightness data and color temperature coefficient; among them, the control mode includes strobe mode and PWM mode; under different control modes, the control methods for several LED light sources are completely inconsistent.

S14: the light source controller generates a light source driving instruction based on the current ambient brightness data and the light source control parameter;

In the specific implementation process of the present invention, the light source controller generates a light source driving instruction based on the current ambient brightness data and the light source control parameters, including: the light source controller obtains the current control mode based on the light source control parameters, and at the current When the control mode is the PWM mode, the corresponding color temperature coefficients of the plurality of LED light sources are calculated based on the color temperature coefficient fitting; the light source brightness driving coefficient is calculated based on the current ambient brightness data and the light source brightness data fitting; based on The corresponding color temperature coefficients of the plurality of LED light sources and the light source brightness driving coefficients generate a light source driving instruction.

Further, when the light source controller obtains the current control mode based on the light source control parameters, it further includes: when the current control mode is the stroboscopic mode, generating the light source according to the preset color temperature coefficient, the preset brightness light source brightness data and the stroboscopic frequency. Light source driver command.

Further, the generating a light source driving instruction based on the corresponding color temperature coefficients of the plurality of LED light sources and the light source luminance driving coefficients includes: obtaining the corresponding color temperature coefficients of the plurality of LED light sources and the light source luminance driving coefficients. The color temperature coefficient and light source brightness driving coefficient of each LED light source; based on the color temperature coefficient and light source brightness driving coefficient of each LED light source, the corresponding LED light source driving instructions are generated and marked to form several marked light source driving instructions; based on several markings The light source driving instructions are combined to generate the light source driving instructions.

Specifically, the light source controller first needs to determine whether the current control module is a PWM mode or a stroboscopic mode according to the control mode in the light source control parameters, and when it is in the PWM mode, it needs to obtain the color temperature coefficient and the light source in the light source control parameters. brightness data; then calculate the color temperature coefficients corresponding to several LED light sources through the linear fitting of the color temperature coefficients. At the same time, it is also necessary to use the current ambient brightness data and light source brightness data to fit and calculate each LED corresponding to several LED light sources. The light source brightness driving data of the light source; and then use the PID control algorithm to generate the light source driving instruction according to the corresponding color temperature coefficients of several LED light sources and the light source brightness driving coefficient.

The color temperature coefficients corresponding to several LED light sources are calculated by linear fitting of the color temperature coefficients. Specifically, assuming that the color temperature coefficient is T, then T ₁ , T ₂ , and T _n are respectively the color temperature coefficients corresponding to several LED light sources, then Have:

T=k ₁ * T ₁ + k ₂ * T ₂ + k ₃ * T ₃ +…k _n * T _n

The color temperature coefficients corresponding to each LED light source are linearly fitted by the above formula, wherein k ₁ , k ₂ , k ₃ , and k _n respectively represent the linear coefficients during fitting.

Use the current ambient brightness data and the light source brightness data to fit and calculate the light source brightness driving data of each LED light source corresponding to several LED light sources. The value is assigned to each LED light source corresponding to several LED light sources in detail, and the light source brightness driving data of each LED light source corresponding to several LED light sources can be obtained.

The PID control algorithm refers to the proportional (P), integral (I) and differential (D) algorithms, that is, the corresponding color temperature coefficients and light source brightness driving coefficients of several LED light sources are input into the PID algorithm for related calculation processing, and the calculation results can be obtained. , and then generate a light source driving instruction according to the calculation result. The PID control algorithm is a closed-loop control algorithm; when controlling multiple LED light sources, the brightness data and color temperature coefficient of each light source are considered, which can effectively realize the precise control of the light source, so that users can change the light source according to their own needs. The brightness and chromaticity can meet the different lighting or other needs of users in different scenarios.

Meanwhile, when the current control mode is the stroboscopic mode, the light source driving instruction may be generated according to the preset color temperature coefficient, the preset brightness light source brightness data and the stroboscopic frequency.

And when generating the light source driving command through the PID control algorithm, it is necessary to obtain the corresponding color temperature coefficient and light source brightness driving coefficient of several LED light sources. The color temperature coefficient and the light source brightness driving coefficient of each LED light source; The color temperature coefficient and the light source brightness driving coefficient are input into the PID control algorithm for operation to generate the corresponding LED light source driving instructions, and marked to form several marked light source driving instructions; then several marked light source driving instructions are packaged to form the light source driving instructions.

S15: the light source controller sends the light source driving instruction to the driving module;

In the specific implementation process of the present invention, the light source controller sends the light source driving instructions to the driving module according to the clock sequence through the interface connected with the driving module.

S16: The driving module drives the plurality of LED light sources to work based on the light source driving instruction.

In the specific implementation process of the present invention, the driving module drives the plurality of LED light sources to work based on the light source driving instructions, including: the driving module parses the light source driving instructions to obtain LEDs corresponding to the plurality of LED light sources. Light source driving instructions; the driving module drives the corresponding several LED light sources to work according to the LED light source driving instructions corresponding to the plurality of LED light sources with constant current.

Specifically, the driving module parses the light source driving instructions to obtain LED light source driving instructions corresponding to several LED light sources; then the driving module drives the corresponding several LED light sources to work with constant current according to the LED light source driving instructions corresponding to several LED light sources. .

In the embodiment of the present invention, a system composed of relatively simple hardware devices is used, and the related methods are run on it, which can satisfy the user's control of the brightness and color temperature of multiple LED light sources, and at the same time ensure the accuracy of the control, which can greatly While reducing the user's use cost, it satisfies the user's precise control, so that more ordinary users can experience and improve the user's use experience.

Embodiment 2

Please refer to FIG. 2 , which is a schematic structural diagram of a plurality of LED light source control systems based on a light source controller according to an embodiment of the present invention.

As shown in FIG. 2, a multiple LED light source control system based on a light source controller, the system includes an input module, a light source controller, a driving module, a feedback unit and several LED light sources; wherein, the input module and all the light source controller is connected; the input end of the driving module is connected with the light source controller, and the output end is connected with the plurality of LED light sources; the feedback unit is connected with the light source controller; wherein, The system is configured to perform a plurality of LED light source control methods as described in any of the above.

Specifically, for the specific implementation manner in this embodiment, reference may be made to the above-mentioned embodiment, and details are not repeated here.

In the embodiment of the present invention, a system composed of relatively simple hardware devices is used, and the related methods are run on it, which can satisfy the user's control of the brightness and color temperature of multiple LED light sources, and at the same time ensure the accuracy of the control, which can greatly While reducing the user's use cost, it satisfies the user's precise control, so that more ordinary users can experience and improve the user's use experience.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read Only Memory (ROM, Read Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or CD, etc.

In addition, a method and system for controlling multiple LED light sources based on a light source controller provided by the embodiments of the present invention have been described in detail above. In this paper, specific examples should be used to illustrate the principles and implementations of the present invention. The description of the embodiment is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in specific embodiments and application scope. As mentioned above, the contents of this specification should not be construed as limiting the present invention.

Claims (5)

1. A method for controlling multiple LED light sources based on a light source controller, characterized in that it comprises an input module, a light source controller, a driving module, a feedback unit and several LED light sources; wherein, the input module and the light source control The input end of the driving module is connected with the light source controller, and the output end is connected with the plurality of LED light sources; the feedback unit is connected with the light source controller; the method includes: Obtain a light source control instruction based on the input module, and send the light source control instruction to the light source controller; obtaining, by the light source controller, current ambient brightness data based on the feedback unit; The light source controller parses the light source control instruction to obtain the light source control parameters included in the light source control instruction; The light source controller generates a light source driving instruction based on the current ambient brightness data and the light source control parameter; The light source controller sends the light source driving instruction to the driving module; The driving module drives the plurality of LED light sources to work based on the light source driving instruction; The light source control parameters include control mode, light source brightness data and color temperature coefficient; The control mode includes a strobe mode and a PWM mode; The light source controller generates a light source driving instruction based on the current ambient brightness data and the light source control parameter, including: The light source controller obtains the current control mode based on the light source control parameters, and when the current control mode is the PWM mode, obtains the color temperature coefficient and light source brightness data in the light source control parameters, and calculates the color temperature coefficient based on the fitting calculation of the color temperature coefficient. Corresponding color temperature coefficients of several LED light sources; A light source luminance driving coefficient is calculated by fitting based on the current ambient luminance data and the light source luminance data; generating a light source driving instruction based on the corresponding color temperature coefficients of the plurality of LED light sources and the light source luminance driving coefficient; The generating a light source driving instruction based on the corresponding color temperature coefficients of the plurality of LED light sources and the light source brightness driving coefficient includes: obtaining the corresponding color temperature coefficient of the plurality of LED light sources and the color temperature coefficient and the light source luminance driving coefficient of each LED light source in the light source luminance driving coefficient; Generate corresponding LED light source driving instructions based on the color temperature coefficient and light source brightness driving coefficient of each LED light source, and mark them to form several marked light source driving instructions; Generate light source driving instructions based on a combination of several labeled light source driving instructions; Among them, the color temperature coefficients corresponding to several LED light sources are calculated through the linear fitting of the color temperature coefficients. If the color temperature coefficient is T, then T1, T2, and Tn are the color temperature coefficients corresponding to several LED light sources, respectively. : T=k ₁ *T ₁ +k ₂ *T ₂ +k ₃ *T ₃ +…k _n *T _n ; The color temperature coefficient corresponding to each LED light source is linearly fitted by the above formula, wherein k1, k2, k3, and kn represent the linear coefficients during fitting respectively; Using the current ambient brightness data and the light source brightness data to fit and calculate the light source brightness driving data of each LED light source corresponding to several LED light sources: first obtain the brightness difference between the light source brightness data and the current ambient brightness data, and then calculate the brightness difference value. Detailed allocation to each LED light source corresponding to several LED light sources, and obtaining the light source brightness driving data of each LED light source corresponding to several LED light sources; Input the corresponding color temperature coefficients and light source brightness driving coefficients of several LED light sources into the PID algorithm for related calculation processing, and then the calculation results can be obtained, and then the light source driving instructions are generated according to the calculation results; and the light source driving instructions are generated through the PID control algorithm. When it is necessary to obtain the corresponding color temperature coefficient and light source brightness driving coefficient of several LED light sources, the color temperature coefficient and light source brightness driving coefficient of each LED light source; then input the corresponding color temperature coefficient and light source brightness driving coefficient of each LED light source into PID control The algorithm performs operations to generate corresponding LED light source driving instructions, and marks them to form several marked light source driving instructions; and then encapsulates several marked light source driving instructions to form light source driving instructions; The light source controller obtains current ambient brightness data based on the feedback unit, including: Collects the brightness data of the current environment within a preset distance range in real time based on the built-in brightness acquisition sensor of the feedback unit, and converts the brightness data into a light sensitivity coefficient; Convert the light sensitivity coefficient into an electrical signal inside the feedback unit, and send the electrical signal to the light source controller in real time; The light source controller converts the received electrical signal into identifiable current ambient brightness data; The driving module drives the plurality of LED light sources to work based on the light source driving instructions, including: The driving module parses the light source driving instructions to obtain LED light source driving instructions corresponding to several LED light sources; The driving module drives the corresponding plurality of LED light sources to work according to the LED light source driving instructions corresponding to the plurality of LED light sources with constant current. 2 . The method for controlling multiple LED light sources according to claim 1 , wherein the obtaining a light source control instruction based on the input module, and sending the light source control instruction to the light source controller, comprises: 2 . Obtain input parameters input by the user based on the user's parameter input operation on the input module, and form the light source control instruction based on the input parameters; The light source control instruction is sent to the light source controller based on a relevant communication protocol. 3 . The method for controlling multiple LED light sources according to claim 2 , wherein the obtaining the input parameters input by the user based on the parameter input operation by the user on the input module comprises: 3 . The user performs a parameter input operation on the input module according to a preset sequence of operations of the input module based on the control requirements, and obtains the input parameters input by the user. 4 . The method for controlling multiple LED light sources according to claim 1 , wherein when the light source controller obtains the current control mode based on the light source control parameters, the method further comprises: 5 . When the current control mode is the stroboscopic mode, the light source driving instruction is generated according to the preset color temperature coefficient, the preset brightness light source brightness data and the stroboscopic frequency. 5. A multiple LED light source control system based on a light source controller, characterized in that the system comprises an input module, a light source controller, a driving module, a feedback unit and several LED light sources; the light source controller is connected; the input end of the driving module is connected with the light source controller, and the output end is connected with the plurality of LED light sources; the feedback unit is connected with the light source controller; wherein, The system is configured to perform a plurality of LED light source control methods as claimed in any one of claims 1-4.

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