Method, device and equipment for adjusting and controlling LED lighting equipment and medium

Abstract

The invention discloses a method, a device and equipment for adjusting and controlling LED lighting equipment and a medium. The method comprises the following steps: acquiring brightness data driven by control signals with different frequencies of the LED lighting equipment under different selected duty ratios; carrying out modeling analysis on the selected duty ratio, frequency and brightness data by adopting a support vector regression algorithm to obtain a nonlinear function relationship model corresponding to the duty ratio, frequency and brightness; obtaining a first duty ratio and a first frequency of the first control signal, and a corresponding first brightness; adjusting the first duty ratio and the first frequency based on the function relation and the energy-saving ratio to obtain a second duty ratio and a second frequency corresponding to the first brightness; and in the actual control process, the first control signal is adjusted according to the second duty ratio and the second frequency in sequence, and a changed second control signal is obtained to drive the LED lighting equipment. According to the method provided by the invention, under the condition of keeping the same brightness, the energy consumption is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor devices, and in particular to a method, device, equipment and medium for adjusting and controlling LED lighting equipment. Background Art

[0002] LED has the advantages of high efficiency, long life, environmental protection, fast response speed, rich colors, small size and light weight. Therefore, it is loved by consumers and has been widely used in many fields such as lighting, display, indication, signal transmission, medical treatment, automobile and communication.

[0003] In the field of LED lighting, the LED control device demodulates the external program control command to obtain the initial signal, which is converted into a drive signal by the drive module to drive the LED to emit various lights. The power and brightness of the LED control device are determined by the external program control command.

[0004] In the application of LED lighting equipment, the energy consumption of LED lighting equipment is huge.

[0005] It can be seen that how to solve the huge energy consumption of LED lighting equipment has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0006] The present invention provides a method, device, equipment and medium for adjusting and controlling LED lighting equipment to solve the technical problem of huge energy consumption of LED lighting equipment, so as to achieve the effect of reducing the power consumption of LED and improving energy utilization rate.

[0007] In order to solve the above technical problems, an embodiment of the present invention provides a method for adjusting and controlling an LED lighting device, the method is applied to an LED control system, the LED control system includes an LED lighting device and an LED lighting device adjustment and control device, the method includes:

[0008] Collecting brightness data of LED lighting equipment driven by control signals of different frequencies at different selected duty cycles;

[0009] Using a support vector regression algorithm to model and analyze the selected duty cycle, the frequency and the brightness data to obtain a nonlinear functional relationship model corresponding to the duty cycle, the frequency and the brightness;

[0010] During the simulation adjustment process, a first duty cycle and a first frequency of a first control signal generated according to an external control program instruction, and a first brightness of the LED lighting device driven by the first control signal are obtained;

[0011] Based on the functional relationship and the energy-saving ratio, the first duty cycle and the first frequency are adjusted to obtain a second duty cycle and a second frequency corresponding to the first brightness;

[0012] In an actual control process, the first control signal is adjusted in turn according to the second duty cycle and the second frequency to obtain a changed second control signal, and the LED lighting device is driven based on the second control signal.

[0013] Preferably, the adjusting the first duty cycle and the first frequency based on the functional relationship and the energy-saving ratio to obtain the second duty cycle and the second frequency corresponding to the first brightness includes:

[0014] adjusting the first duty cycle according to the acquired energy-saving ratio signal to obtain a second duty cycle corresponding to the first brightness;

[0015] The second duty cycle calculation formula is:

[0016]

[0017] Wherein, D1 represents the duty cycle of the first control signal, D2 represents the duty cycle of the second control signal, and X represents the energy saving ratio.

[0018] Preferably, the first duty cycle and the first frequency are adjusted based on the functional relationship and the energy-saving ratio to obtain the second duty cycle and the second frequency corresponding to the first brightness, and further includes:

[0019] The second duty cycle and the first brightness are input into the nonlinear functional relationship model to obtain a second frequency corresponding to the first brightness.

[0020] Preferably, adjusting the first control signal according to the second duty cycle and the second frequency in sequence to obtain a changed second control signal includes:

[0021] adjusting the duty cycle of the first control signal according to the second duty cycle to obtain a control signal to be frequency adjusted;

[0022] frequency-adjusting the control signal to be frequency-adjusted according to the second frequency to obtain a changed second control signal;

[0023] The step of adjusting the duty cycle of the first control signal according to the second duty cycle to obtain the control signal to be frequency adjusted includes:

[0024] Obtaining a first duration corresponding to a high level and a second duration corresponding to a low level of the first control signal, and calculating a total duration of the first duration and the second duration;

[0025] Keeping the total duration unchanged, calculating a third duration of a high level corresponding to the second duty cycle and a fourth duration of a low level corresponding to the second duty cycle according to the second duty cycle;

[0026] The first duration of the high level of the first control signal is reduced to the third duration, and the second duration of the low level of the first control signal is increased to the fourth duration, so as to obtain the control signal to be frequency adjusted.

[0027] Preferably, the frequency-adjusting the control signal to be frequency-adjusted according to the second frequency to obtain a changed second control signal includes:

[0028] The third duration and the fourth duration are reduced in equal proportion to increase the output frequency of the first control signal to the second frequency, thereby obtaining a second control signal.

[0029] Preferably, the step of increasing the output frequency of the first control signal to the second frequency to obtain the second control signal includes:

[0030] The high level of the third duration and the low level of the fourth duration are cross-distributed evenly to obtain a second control signal.

[0031] Preferably, the first control signal is a plurality of continuous PWM signals.

[0032] In a second aspect, an embodiment of the present invention provides an LED lighting device adjustment control device, the device comprising a first data set acquisition module, a modeling and analysis module, a second data acquisition module, a duty cycle frequency calculation module and an adjustment processing module:

[0033] The device comprises: a first data set acquisition module, a modeling and analysis module, a second data acquisition module, a duty cycle calculation module, a frequency calculation module and an adjustment processing module;

[0034] The first data set acquisition module is used to acquire brightness data of the LED lighting device driven by control signals of different frequencies at different selected duty cycles;

[0035] The modeling and analysis module is used to perform modeling and analysis on the selected duty cycle, the frequency and the brightness data by using a support vector regression algorithm to obtain a nonlinear functional relationship model corresponding to the duty cycle, the frequency and the brightness;

[0036] The second data acquisition module is used to obtain a first duty cycle and a first frequency of a first control signal generated according to an external control program instruction, and a first brightness of the LED lighting device driven by the first control signal during the simulation adjustment process;

[0037] The duty cycle frequency calculation module is used to adjust the first duty cycle and the first frequency based on the functional relationship and the energy saving ratio to obtain a second duty cycle and a second frequency corresponding to the first brightness;

[0038] The adjustment processing module is used to adjust the first control signal according to the second duty cycle and the second frequency in turn during the actual control process to obtain a changed second control signal, and drive the LED lighting device based on the second control signal.

[0039] In a third aspect, the present invention also provides a computer device, comprising a memory, a processor and a transceiver, which are connected via a bus; the memory is used to store a set of computer program instructions and data, and transmit the stored data to the processor, and the processor executes the program instructions stored in the memory to execute the above-mentioned LED lighting device adjustment and control method.

[0040] In a fourth aspect, the present invention further provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium. When the computer program is executed, the above-mentioned LED lighting device adjustment and control method is implemented.

[0041] Compared with the prior art, the LED power supply control method and system disclosed in the present invention have the beneficial effect of reducing the energy consumption of LED lighting equipment while maintaining the same brightness, thereby achieving energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a first control signal provided in one embodiment of the present invention;

[0043] Figure 2 is a second control signal provided in one embodiment of the present invention;

[0044] Figure 3 is a third control signal provided in one embodiment of the present invention;

[0045] Figure 4 It is a schematic diagram of the steps of adjusting and controlling an LED lighting device provided in one embodiment of the present invention;

[0046] Figure 5 is a mapping relationship between frequency and brightness provided in one embodiment of the present invention;

[0047] Figure 6 is a step of a method for calculating a second frequency provided in one embodiment of the present invention;

[0048] Figure 7It is a schematic diagram of the steps of a method for adjusting a duty cycle provided in one embodiment of the present invention;

[0049] Figure 8 is a structural schematic diagram of an LED lighting equipment adjustment control device provided in one embodiment of the present invention;

[0050] Fig. 9 It is a schematic diagram of the structure of a computer device provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the description of this application, the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0053] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are only for illustrative purposes, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0055] In the field of LED display, theoretical research believes that the power and brightness of LED lighting equipment are related to the voltage, current and duty cycle of the dimming signal, that is, when the same voltage and current are applied, the dimming control signal with the same duty cycle is sent at different frequencies for the same LED lighting equipment, and its power and brightness remain unchanged. However, through experiments, it is found that the power and brightness of LED lighting equipment are also related to the frequency of the dimming signal, that is, when the same voltage and current are applied, the dimming control signal with the same duty cycle is sent at different frequencies for the same LED lighting equipment, and its power remains unchanged, but the brightness presents a nonlinear positive relationship.

[0056] In a preferred embodiment of the present invention, an experiment is carried out to verify the above characteristics. A light string with 50 light-emitting diodes connected in parallel and powered by 5V is used for the experiment. The voltage, current and duty cycle of the dimming control signal are kept the same. Table 1 shows the brightness and power data corresponding to different frequencies with the same voltage, current and duty cycle of the dimming control signal, all of which are 50%.

[0057] Table 1

[0058] Control Signal Signal frequency Brightness(LUX) Power(W) 8ms / 8ms 62.5Hz 1855 0.327 1ms / 1ms 500Hz 3880 0.329 10us / 10us 50KHz 4560 0.435

[0059] It can be seen from Table 1 that under the same conditions of voltage, current and duty cycle of dimming control signal, the greater the signal frequency, the higher the brightness.

[0060] Furthermore, it is verified whether the distribution of high level and low level has an impact on power under the premise that the signal period of the PWM signal is the same. Table 2 shows the power data corresponding to different waveform distributions under the same conditions of voltage, current and duty cycle of dimming control signal and the same total high level duration.

[0061] Table 2

[0062] Control Signal Total high level time Power(W) 4ms / 8ms (such as Figure 1 ) 4ms 0.146 4ms / 8ms (such as Figure 2 ) 3.96ms 0.142 0.125ms / 0.25ms (such as Figure 3 ) 4ms 0.146

[0063] It can be seen from Table 2 that under the same conditions of voltage, current and duty cycle of dimming control signal, the total duration of high level is the same. In different waveform distributions, no matter how the high level is distributed, it has almost no effect on power.

[0064] Furthermore, it is verified whether different frequencies have an effect on power under the premise that the signal period of the PWM signal is the same. Table 3 shows the brightness and power data corresponding to different frequencies under the same conditions of voltage, current and duty cycle of the dimming control signal.

[0065] Control Signal Signal frequency Power(W) Brightness(LUX) 4ms / 8ms (such as Figure 1 ) 83.3Hz 0.146 1691 0.125ms / 0.25ms (such as Figure 3 ) 2666.7Hz 0.147 2630

[0066] The first set of parameters starts with a continuous high level of 4 milliseconds and ends with a continuous low level of 8 milliseconds. The second set of parameters, by evenly distributing the 4 millisecond high level and 8 millisecond low level signals over the entire 12 milliseconds, produces a signal with a high level duration of 0.125 milliseconds and a low level duration of 0.25 milliseconds. Comparing the brightness data of the two sets of parameters, under the same power background, the high-frequency control signal can make the LED brighter.

[0067] From the above experimental results, we can know that increasing the signal frequency from 83.3Hz to 2666.7Hz can increase the brightness from 1691LUX to 2630LUX. In other words, if a variable frequency signal with a signal frequency of 2666.7Hz is used to keep the brightness the same, can the power be reduced? Figure 1 He Ru Figure 3 The control signal shown corresponds to the output power when the brightness remains unchanged.

[0068] Table 4

[0069] Luminescent signal Brightness(LUX) Voltage (V) Current (A) Power(W) 4ms / 8ms 1691 1.66 0.088 0.147 0.125ms / 0.25ms 1691 1.40 0.057 0.08

[0070] It can be seen from Table 4 that if the brightness output value is 1691LUX, the voltage can be reduced by 0.26V, the current can be reduced by 0.031A, and the total power can be reduced by 45%. The power reduction ratio is called the energy saving ratio, and the energy saving ratio is the energy saving effect to be achieved by the preferred embodiment of the present invention. Based on the above experimental findings, the preferred embodiment of the present invention provides an LED lighting device adjustment control method to achieve an energy saving effect of a specific energy saving ratio.

[0071] like Figure 4 As shown, a method for adjusting and controlling an LED lighting device provided by an embodiment of the present invention is applied to an LED control device. The LED control system includes an LED lighting device and an LED lighting device adjustment and control device. The method includes:

[0072] S1. Collecting brightness data of LED lighting equipment driven by control signals of different frequencies at different selected duty cycles.

[0073] S2. Use a support vector regression algorithm to model and analyze the frequency and brightness data under each selected duty cycle to obtain a nonlinear functional relationship model corresponding to the duty cycle, the frequency and the brightness.

[0074] S3. During the simulation adjustment process, a first duty cycle and a first frequency of a first control signal generated according to an external control program instruction, and a first brightness of the LED lighting device driven by the first control signal are obtained.

[0075] S4. Based on the functional relationship and the energy-saving ratio, adjust the first duty cycle and the first frequency to obtain a second duty cycle and a second frequency corresponding to the first brightness.

[0076] S5. In an actual control process, the first control signal is adjusted according to the second duty cycle and the second frequency in sequence to obtain a changed second control signal, and the LED lighting device is driven based on the second control signal.

[0077] In a preferred embodiment of the present invention, based on the nonlinear relationship between the brightness of LED lighting equipment and the frequency of the dimming control signal, an experiment is conducted with a light string of 50 light-emitting diodes connected in parallel and powered by 5V, the voltage, current and duty cycle of the dimming control signal are kept the same, the frequency of the dimming control signal is adjusted, and the corresponding brightness data is collected in the same way to construct a sample data set for the specific duty cycle. The duty cycle is changed, and the sample data sets corresponding to different specific duty cycles are collected in the same way. For the selection of a specific duty cycle, the commonly used duty cycle of LED lighting equipment is selected as the target to cover the commonly used duty cycles of all LED lighting equipment, and the duty cycle values ​​of corresponding requirements are increased as needed. Table 1 shows a partial sample data set with a duty cycle of 50%.

[0078] PWM signal Signal frequency Brightness(LUX) 8ms / 8ms 62.5Hz 1855 1ms / 1ms 500Hz 3880 10us / 10us 50KHz 4560

[0079] The Support Vector Regression (SVR) algorithm is a regression algorithm based on support vector machines. It is mainly used to solve regression problems, that is, predicting the values ​​of one or more continuous variables. The core idea of ​​the SVR algorithm is to find an optimal hyperplane in the data set so that the hyperplane can best fit the training data while ensuring the generalization ability of the model. Unlike traditional regression algorithms, SVR optimizes the model by introducing an "interval band". Sample points within this interval band are considered to be correctly predicted and will not affect the optimization of the model. Only those sample points that fall outside the interval band will have an effect on the optimization of the model.

[0080] In a preferred embodiment of the present invention, a support vector regression algorithm is used to model and analyze the selected duty cycle, frequency and brightness data to obtain a nonlinear functional relationship model corresponding to the duty cycle, frequency and brightness. The support vector regression algorithm is used to accurately simulate the functional relationship between different frequencies and brightness under different specific duty cycles, providing a basis for the selection of frequency.

[0081] In general physical or optical situations, frequency and brightness are not always directly related through a simple mathematical formula. This is because brightness is affected by many factors, including but not limited to the power of the light source, the radiation efficiency of the light source, the viewing angle of the observer, the distance between the light source and the observer, and the spectral distribution of the light source.

[0082] When exploring the nonlinear functional relationship between duty cycle, frequency and brightness, we can assume that in a simplified and idealized environment, all other external factors are kept the same, and perform support vector regression algorithm fitting analysis on the duty cycle, frequency and brightness of the same light source. However, for different duty cycles, the relationship between frequency and brightness is not the same, such as Figure 5 The figure shows that for the same light source under the same external environment, different duty cycles, there is a specific functional mapping relationship between the frequency and brightness. Therefore, this application uses the support vector regression algorithm to model and analyze the duty cycle, frequency and brightness. The obtained nonlinear functional relationship model can accurately express the relationship between duty cycle, frequency and brightness, and improve the accuracy of LED lighting equipment adjustment.

[0083] In a preferred embodiment of the present invention, a first duty cycle and a first frequency of a first control signal generated according to an external control program instruction, and a first brightness of an LED lighting device driven by the first control signal are obtained. The first control signal is equivalent to a control signal generated by an LED control device according to an external control program instruction, and the first control signal directly acts on a driving module to drive a target LED lighting device, and the brightness of the LED lighting device is a first brightness. In a preferred embodiment of the present invention, the first control signal is a plurality of continuous PWM signals.

[0084] After collecting the first duty cycle, the first frequency of the first control signal and the first brightness of the LED lighting device driven by the first control signal, an energy-saving ratio signal is obtained, the energy-saving ratio is demodulated to obtain the energy-saving ratio, and the second duty cycle is calculated based on the energy-saving ratio and the first duty cycle.

[0085] The energy saving ratio is the ratio of energy consumption reduction of LED lighting equipment. The energy consumption reduction of LED lighting equipment can be achieved by reducing the duty cycle of the control signal. However, when the duty cycle of the control signal is reduced, the corresponding brightness is also reduced. If the brightness can be kept unchanged while reducing the duty cycle of the control signal, energy saving and consumption reduction of LED lighting equipment can be achieved.

[0086] In the embodiment of the present invention, the duty cycle is first reduced according to the energy saving ratio to obtain a second duty cycle, and the calculation formula of the second duty cycle is:

[0087]

[0088] Wherein, D1 represents the duty cycle of the first control signal, D2 represents the duty cycle of the second control signal, and X represents the energy saving ratio.

[0089] In a preferred embodiment of the present invention, according to the second duty cycle and the first brightness, based on a nonlinear functional relationship model, the frequency corresponding to the first brightness at the second duty cycle is calculated as the second frequency. Specifically, the second duty cycle and the first brightness are input into the nonlinear functional relationship model to obtain the second frequency corresponding to the first brightness.

[0090] Further, after obtaining the second duty cycle and the second frequency, in the actual control process, the first control signal is adjusted according to the second duty cycle and the second frequency in turn to obtain a changed second control signal, such as Figure 6 As shown, the following steps are included:

[0091] S501. Adjust the duty cycle of the first control signal according to the second duty cycle to obtain a control signal to be frequency adjusted.

[0092] S502: Frequency-adjust the control signal to be frequency-adjusted according to the second frequency to obtain a changed second control signal.

[0093] Further, the duty cycle of the first control signal is adjusted according to the second duty cycle to obtain a control signal to be frequency adjusted, such as Figure 7 As shown, the following steps are included:

[0094] S5011. Obtain a first duration corresponding to a high level and a second duration corresponding to a low level of the first control signal, and calculate the total duration of the first duration and the second duration.

[0095] S5012: Keep the total duration unchanged, and calculate a third duration of a high level corresponding to the second duty cycle and a fourth duration of a low level corresponding to the second duty cycle according to the second duty cycle.

[0096] S5013: Reduce the first duration of the high level of the first control signal to the third duration, and increase the second duration of the low level of the first control signal to the fourth duration, to obtain the control signal to be frequency adjusted.

[0097] Obtain the first duration corresponding to the high level duration of the first control signal, and the second duration corresponding to the low level, and calculate the total duration of the first duration and the second duration to obtain the total duration of a waveform cycle of the first control signal. To change the first control signal from the first duty cycle to the second duty cycle, it is only necessary to reduce the first duration of the high level of the first control signal, and then correspondingly increase the duration of the high level reduction to the second duration of the low level. The calculation formula for the third duration of the high level corresponding to the second duty cycle is:

[0098] h=D2(H+L)

[0099] Among them, h represents the third duration, H represents the first duration, and L represents the second duration.

[0100] Further, the fourth duration of the low level corresponding to the second duty cycle is calculated, and the calculation formula is:

[0101] l=(1-D2)(H+L)

[0102] Among them, l represents the fourth duration.

[0103] Furthermore, the first duration of the high level of the first control signal is reduced to a third duration, and the second duration of the low level of the first control signal is increased to a fourth duration. At this time, the duty cycle is changed from the first duty cycle to the second duty cycle, and a control signal after the duty cycle is changed is obtained, that is, a control signal to be frequency adjusted is obtained.

[0104] Further, the control signal to be frequency adjusted is frequency-converted according to the second frequency to obtain a second control signal. Specifically, the third time duration and the fourth time duration are reduced in proportion to increase the output frequency of the first control signal to the second frequency to obtain the second control signal.

[0105] Table 5 shows the corresponding values ​​of brightness, voltage, current and power after adjusting the duty cycle and frequency.

[0106] Table 5

[0107]

[0108] From Table 5, we can see that by changing the duty cycle from 33.3% to 20% and increasing the frequency from 83.3Hz to 2666.6Hz, the brightness of the LED lighting device remains the same, and the power consumed by the LED lighting device is only 54.4% of the original, thus reducing the energy consumption of the LED lighting device.

[0109] In a preferred embodiment of the present invention, the second control signal is in the form of a high level of the third duration and a low level of the fourth duration crossed and evenly distributed to ensure the stability of the control signal and the stability of the brightness of the LED lighting device.

[0110] In a specific embodiment of the present invention, Figure 1 The first control signal is shown in FIG. 1 , which starts with a high level for 4 milliseconds and ends with a low level for 8 milliseconds. Figure 4 As the second control signal, by evenly distributing the 4 millisecond high level and 8 millisecond low level signals in the entire 12 millisecond duration, a signal with a high level duration of 0.125 milliseconds and a low level duration of 0.25 milliseconds is generated, and the total power can be reduced by 45%. Therefore, by controlling the LED lighting device with the second control signal obtained in the preferred embodiment of the present invention, the output power of the LED lighting device can be reduced while keeping the voltage, current, external control program instructions and lighting unchanged, and the energy saving effect of the preset energy saving ratio can be achieved.

[0111] The LED power supply control method provided in the embodiment of the present invention is applied to an LED power supply control device to solve the technical problem of making LED lighting more energy-efficient. The LED lighting device adjustment control method provided by the present invention is applied to an LED control system, and the control system includes an LED lighting device and an LED lighting device adjustment control device. The method includes collecting brightness data driven by control signals of different frequencies at different selected duty cycles of the LED lighting device; using a support vector regression algorithm to model and analyze the selected duty cycle, frequency and brightness data to obtain a nonlinear functional relationship model corresponding to the duty cycle, frequency and brightness; in the simulation adjustment process, obtaining the first duty cycle and the first frequency of the first control signal generated according to the external control program instruction, and the first brightness of the LED lighting device driven by the first control signal; based on the functional relationship and the energy-saving ratio, adjusting the first duty cycle and the first frequency to obtain the second duty cycle and the second frequency corresponding to the first brightness; in the actual control process, adjusting the first control signal according to the second duty cycle and the second frequency in turn to obtain the changed second control signal, and driving the LED lighting device based on the second control signal. The LED lighting device adjustment control method provided by the present invention reduces the energy consumption of the LED lighting device while maintaining the same brightness, thereby achieving the effect of energy saving.

[0112] like Figure 8 As shown, based on the LED lighting device adjustment control method, in an embodiment of the present invention, a LED lighting device adjustment control device is also provided, the device comprising: a first data set acquisition module 1, a modeling and analysis module 2, a second data acquisition module 3, a duty cycle frequency calculation module 4 and an adjustment processing module 5;

[0113] The first data set acquisition module 1 is used to acquire brightness data of the LED lighting device driven by control signals of different frequencies at different selected duty cycles;

[0114] The modeling and analysis module 2 is used to perform modeling and analysis on the selected duty cycle, the frequency and the brightness data by using a support vector regression algorithm to obtain a nonlinear functional relationship model corresponding to the duty cycle, the frequency and the brightness;

[0115] The second data acquisition module 3 is used to obtain a first duty cycle and a first frequency of a first control signal generated according to an external control program instruction, and a first brightness of the LED lighting device driven by the first control signal during the simulation adjustment process;

[0116] The duty cycle frequency calculation module 4 is used to adjust the first duty cycle and the first frequency based on the functional relationship and the energy saving ratio to obtain a second duty cycle and a second frequency corresponding to the first brightness;

[0117] The adjustment processing module 5 is used to adjust the first control signal according to the second duty cycle and the second frequency in turn during the actual control process to obtain a changed second control signal, and drive the LED lighting device based on the second control signal.

[0118] For the specific definition of an LED lighting device adjustment control device, please refer to the above-mentioned definition of an LED lighting device adjustment control method, which will not be repeated here. A person of ordinary skill in the art can realize that the various modules and steps described in conjunction with the embodiments disclosed in the present invention can be implemented in hardware, software, or a combination of both. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0119] like Fig. 9 As shown, an embodiment of the present invention provides a computer device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, the steps in the above-mentioned LED lighting device adjustment control method embodiment are implemented, for example Figure 1 Steps S1 to S5 described in .

[0120] Those skilled in the art will understand that the Fig. 9 It is only an example of a computer device and does not constitute a limitation of the computer device. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the computer device may also include input and output devices, network access devices, buses, etc.

[0121] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the computer device, and uses various interfaces and lines to connect various parts of the entire computer device.

[0122] The memory can be used to store the computer program and / or module, and the processor realizes various functions of the computer device by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0123] Wherein, if the module integrated in the computer device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium, etc.

[0124] A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0125] Accordingly, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to perform the steps in the LED lighting device adjustment control method of the above embodiment, for example Figure 1 Steps S1 to S5 described in .

[0126] The LED lighting device adjustment control method, device, computer device and storage medium provided in this embodiment are aimed at the technical problem of huge energy consumption of LED lighting devices. The LED lighting device adjustment control method provided by the present invention is applied to an LED control system, and the control system includes an LED lighting device and an LED lighting device adjustment control device. The method includes collecting brightness data driven by control signals of different frequencies under different selected duty cycles of the LED lighting device; using a support vector regression algorithm to model and analyze the selected duty cycle, frequency and brightness data to obtain a nonlinear functional relationship model corresponding to the duty cycle, frequency and brightness; in the simulation adjustment process, obtaining the first duty cycle and the first frequency of the first control signal generated according to the external control program instruction, and the first brightness of the LED lighting device driven by the first control signal; based on the functional relationship and the energy-saving ratio, adjusting the first duty cycle and the first frequency to obtain the second duty cycle and the second frequency corresponding to the first brightness; in the actual control process, adjusting the first control signal according to the second duty cycle and the second frequency in turn to obtain the changed second control signal, and driving the LED lighting device based on the second control signal. The LED lighting device adjustment control method provided by the present invention reduces the energy consumption of the LED lighting device while maintaining the same brightness, thereby achieving energy-saving effects.

[0127] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for adjusting and controlling an LED lighting device, characterized in that: The method is applied to an LED control system, the LED control system includes an LED lighting device and an LED lighting device adjustment control device, and the method includes: Collecting brightness data of LED lighting equipment driven by control signals of different frequencies at different selected duty cycles; Using a support vector regression algorithm to model and analyze the selected duty cycle, the frequency and the brightness data to obtain a nonlinear functional relationship model corresponding to the duty cycle, the frequency and the brightness; During the simulation adjustment process, a first duty cycle and a first frequency of a first control signal generated according to an external control program instruction, and a first brightness of the LED lighting device driven by the first control signal are obtained; Based on the functional relationship and the energy-saving ratio, the first duty cycle and the first frequency are adjusted to obtain a second duty cycle and a second frequency corresponding to the first brightness; In an actual control process, the first control signal is adjusted in turn according to the second duty cycle and the second frequency to obtain a changed second control signal, and the LED lighting device is driven based on the second control signal.

2. The LED lighting device adjustment control method according to claim 1, characterized in that: The adjusting the first duty cycle and the first frequency based on the functional relationship and the energy-saving ratio to obtain the second duty cycle and the second frequency corresponding to the first brightness includes: adjusting the first duty cycle according to the acquired energy-saving ratio signal to obtain a second duty cycle corresponding to the first brightness; The second duty cycle calculation formula is: Wherein, D1 represents the duty cycle of the first control signal, D2 represents the duty cycle of the second control signal, and X represents the energy saving ratio.

3. The LED lighting device adjustment control method according to claim 2, characterized in that: The first duty cycle and the first frequency are adjusted based on the functional relationship and the energy saving ratio to obtain a second duty cycle and a second frequency corresponding to the first brightness, and further includes: The second duty cycle and the first brightness are input into the nonlinear functional relationship model to obtain a second frequency corresponding to the first brightness.

4. The LED lighting device adjustment control method according to claim 1, characterized in that: The step of adjusting the first control signal according to the second duty cycle and the second frequency in sequence to obtain a changed second control signal includes: adjusting the duty cycle of the first control signal according to the second duty cycle to obtain a control signal to be frequency adjusted; frequency-adjusting the control signal to be frequency-adjusted according to the second frequency to obtain a changed second control signal; The step of adjusting the duty cycle of the first control signal according to the second duty cycle to obtain the control signal to be frequency adjusted includes: Obtaining a first duration corresponding to a high level and a second duration corresponding to a low level of the first control signal, and calculating a total duration of the first duration and the second duration; Keeping the total duration unchanged, calculating a third duration of a high level corresponding to the second duty cycle and a fourth duration of a low level corresponding to the second duty cycle according to the second duty cycle; The first duration of the high level of the first control signal is reduced to the third duration, and the second duration of the low level of the first control signal is increased to the fourth duration, so as to obtain the control signal to be frequency adjusted.

5. The LED lighting device adjustment control method according to claim 4, characterized in that: The step of frequency-adjusting the control signal to be frequency-adjusted according to the second frequency to obtain a changed second control signal includes: The third duration and the fourth duration are reduced in equal proportion to increase the output frequency of the first control signal to the second frequency, thereby obtaining a second control signal.

6. The LED lighting device adjustment control method according to claim 5, characterized in that: The step of increasing the output frequency of the first control signal to the second frequency to obtain the second control signal includes: The high level of the third duration and the low level of the fourth duration are cross-distributed evenly to obtain a second control signal.

7. The LED lighting device adjustment control method according to claim 1, characterized in that: The first control signal is a plurality of continuous PWM signals.

8. An LED lighting equipment adjustment control device, characterized in that: The device comprises: a first data set acquisition module, a modeling and analysis module, a second data acquisition module, a duty cycle frequency calculation module and an adjustment processing module; The first data set acquisition module is used to acquire brightness data of the LED lighting device driven by control signals of different frequencies at different selected duty cycles; The modeling and analysis module is used to perform modeling and analysis on the selected duty cycle, the frequency and the brightness data by using a support vector regression algorithm to obtain a nonlinear functional relationship model corresponding to the duty cycle, the frequency and the brightness; The second data acquisition module is used to obtain a first duty cycle and a first frequency of a first control signal generated according to an external control program instruction, and a first brightness of the LED lighting device driven by the first control signal during the simulation adjustment process; The duty cycle frequency calculation module is used to adjust the first duty cycle and the first frequency based on the functional relationship and the energy saving ratio to obtain a second duty cycle and a second frequency corresponding to the first brightness; The adjustment processing module is used to adjust the first control signal according to the second duty cycle and the second frequency in turn during the actual control process to obtain a changed second control signal, and drive the LED lighting device based on the second control signal.

9. A computer device, characterized in that: The computer device includes a memory, a processor and a transceiver, which are connected via a bus; the memory is used to store a set of computer program instructions and data, and transmit the stored data to the processor, and the processor executes the program instructions stored in the memory to execute the LED lighting device adjustment and control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed, the LED lighting device adjustment and control method according to any one of claims 1 to 7 is implemented.

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