CN113260110B - Brightness control method, device, equipment and storage medium - Google Patents

Abstract

The application relates to a brightness control method, a device, equipment and a storage medium, wherein the method comprises the following steps: acquiring DMX data and pulse duty ratio of a lamp to be adjusted; if the DMX data of the lamp is smaller than a first preset threshold value, determining the target current of the lamp according to the pulse duty ratio and a preset ratio curve; the preset ratio curve is a ratio curve of current to pulse duty ratio; and controlling the brightness of the lamp to be adjusted according to the target current. The technical scheme that this application embodiment provided can realize that LED lamps and lanterns gradually brighten under the low luminance to satisfy stage lighting's actual demand.

Description

Brightness control method, device, equipment and storage medium

technical field

The present application relates to the technical field of LED lamp control, in particular to a brightness control method, device, equipment and storage medium.

Background technique

With the continuous development of LED technology, more and more occasions need to use stage LED lamps, and there are more detailed requirements for the dimming of stage LED lamps. For example, there are higher requirements for the brightness range of stage LED lamps, the speed of brightening and dimming, and other aspects.

In the actual use of stage LED lamps, the PWM pulse width is usually used to dim the LED lamps, that is, changing the duty cycle of the pulse width signal can change the brightness of the LED lamps. Specifically, the LED lamp can be brightened by increasing the duty cycle of the pulse width signal; the LED lamp can be dimmed by reducing the duty cycle of the pulse width signal.

However, according to the actual needs of stage lighting, it is usually required to control the LED lamps to gradually brighten when the brightness is low, so as to reduce the stimulation of the light to the human eye. In the existing brightness control method of LED lamps, the brightness of LED lamps changes too quickly under low brightness, which cannot meet the actual needs of the stage.

Contents of the invention

Based on this, the embodiments of the present application provide a brightness control method, device, device and storage medium, which can realize LED lamps becoming brighter gradually under low brightness, so as to meet the actual needs of stage lighting.

In a first aspect, a brightness control method is provided, the method comprising:

Obtain the DMX data and pulse duty ratio of the lamp to be adjusted; if the DMX data of the lamp is less than the first preset threshold, determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve; the preset ratio curve is the current and The ratio curve of the pulse duty cycle; according to the target current, the brightness of the lamp to be adjusted is controlled.

In one of the embodiments, the target current of the lamp is determined according to the pulse duty cycle and the preset ratio curve, including:

Acquire the brightness delay time of the lamp to be adjusted; determine the preset target ratio curve corresponding to the brightness delay time according to the brightness delay time; determine the target current of the lamp according to the pulse duty cycle and the preset target ratio curve.

In one of the embodiments, the preset target ratio curve corresponding to the brightness delay time is determined according to the brightness delay time, including:

Obtain the resistance value of the first current regulation circuit; calculate the target capacitance value connected to the first current regulation circuit according to the brightness delay time and the resistance value; determine the preset ratio curve corresponding to the target capacitance value according to the target capacitance value, as Preset target ratio curve.

In one of the embodiments, the above method also includes:

The capacitance corresponding to the target capacitance value is connected to the first current regulation circuit through the control of the capacitance switching switch.

In one of the embodiments, the target current of the lamp is determined according to the pulse duty cycle and the preset ratio curve, including:

The switching switch of the control circuit is connected to the first current regulation circuit, and the first current regulation circuit is controlled to determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve.

In one of the embodiments, the above method also includes:

If the DMX data of the lamp is greater than or equal to the first preset threshold, the control circuit switches the switch to connect to the second current regulation circuit, and controls the second current regulation circuit to determine the target current of the lamp according to the pulse duty ratio.

In one of the embodiments, the acquisition of the pulse duty cycle of the lamp to be adjusted includes:

According to the DMX data, the pulse duty cycle of the lamp to be adjusted is obtained from the preset data table; the mapping relationship between each DMX data and each pulse duty cycle is stored in the preset data table.

In a second aspect, a brightness control device is provided, which includes:

The data acquisition module is used to acquire the DMX data and the pulse duty cycle of the lamp to be adjusted;

The target current determination module is used to determine the target current of the lamp according to the pulse duty cycle and the preset ratio curve if the DMX data of the lamp is less than the first preset threshold; the preset ratio curve is the ratio of the current to the pulse duty cycle curve;

The brightness control module is used to control the brightness of the lamp to be adjusted according to the target current.

A third aspect provides a computer device, including a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the method steps in any embodiment of the first aspect above are implemented.

In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the method steps in any embodiment of the above-mentioned first aspect are implemented.

The brightness control method, device, device, and storage medium described above acquire the DMX data and pulse duty ratio of the lamp to be adjusted; if the DMX data of the lamp is less than the first preset threshold, then according to the pulse duty ratio and the preset ratio curve, Determine the target current of the lamp; according to the target current, control the brightness of the lamp to be adjusted. In the technical solution provided by the embodiment of this application, since the preset ratio curve is the ratio curve of the current and the pulse duty ratio, the target current of the lamp can be determined from the preset ratio curve through the pulse duty ratio, and the pulse duty ratio and the pulse duty ratio can be combined. The target current performs compound dimming on the LED lamps, and the target current in the preset ratio curve increases slowly with the change of the pulse duty cycle, so that the LED lamps gradually become brighter under low brightness to meet the actual needs of stage lighting. Enrich the dimming effect of LED lamps.

Description of drawings

FIG. 1 is a block diagram of a computer device provided in an embodiment of the present application;

FIG. 2 is a flow chart of a brightness control method provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a preset ratio curve provided by an embodiment of the present application;

FIG. 4 is an enlarged schematic diagram of a preset ratio curve provided in the embodiment of the present application;

FIG. 5 is an enlarged schematic diagram of another preset ratio curve provided by the embodiment of the present application;

FIG. 6 is a schematic diagram of a preset data table provided by the embodiment of the present application;

FIG. 7 is a schematic diagram of another preset data table provided by the embodiment of the present application;

FIG. 8 is a schematic diagram of another preset data table provided by the embodiment of the present application;

FIG. 9 is a flowchart of a brightness control method provided by an embodiment of the present application;

FIG. 10 is a flowchart of a brightness control method provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of an adjustment circuit provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of a preset ratio curve corresponding to different target capacitance values provided by the embodiment of the present application;

Fig. 13 is a schematic diagram of brightness control provided by the embodiment of the present application;

FIG. 14 is a block diagram of a brightness control device provided by an embodiment of the present application;

FIG. 15 is a block diagram of a brightness control device provided by an embodiment of the present application;

FIG. 16 is a block diagram of a brightness control device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

The brightness control method provided by this application can be applied to computer equipment, and the computer equipment can be a server or a terminal, where the server can be a single server or a server cluster composed of multiple servers. This is not specifically limited, and the terminal may be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices.

Taking the computer device as a server as an example, FIG. 1 shows a block diagram of a server. As shown in FIG. 1 , the server may include a processor and a memory connected through a system bus. Among them, the processor of the server is used to provide calculation and control capabilities. The memory of the server includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and databases. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. When the computer program is executed by the processor, a brightness control method is realized.

Those skilled in the art can understand that the structure shown in Figure 1 is only a block diagram of a partial structure related to the solution of this application, and does not constitute a limitation on the server to which the solution of this application is applied. Optionally, the server may include There may be more or fewer components than shown in the figures, or certain components may be combined, or have different component arrangements.

It should be noted that the execution subject of the embodiment of the present application may be a computer device or a brightness control device. In the following method embodiments, the computer device is used as the execution subject for description.

In one embodiment, as shown in FIG. 2 , it shows a flowchart of a brightness control method provided by an embodiment of the present application, and the method may include the following steps:

Step 220, acquiring DMX data and pulse duty cycle of the lamp to be adjusted.

Among them, in the field of dimming and control of LED lamps, LED lamps mainly use DMX512 protocol to transmit and receive DMX data. DMX512 protocol is an industrial standard for data transmission between lighting consoles and lighting equipment. The pulse duty cycle is the ratio of the turn-on time to the turn-off time of the LED lamp. When controlling the brightness of the LED lamp, it is usually used to switch the LED lamp at a high frequency at a frequency higher than the duration of human vision to control the LED lamp to be turned on. The ratio of the off time to the off time, that is, the control pulse duty cycle adjusts the brightness of the LED lamp. DMX data and pulse duty cycle of lamps are important parameters to control the brightness of LED lamps. Therefore, when controlling the brightness of lamps, it is necessary to obtain the DMX data and pulse duty cycle of the lamps to be adjusted. The DMX data can be obtained by receiving the DMX data sent by the lighting console. The pulse duty cycle can be a preset fixed pulse duty cycle value, or the corresponding pulse duty cycle can be queried based on the obtained DMX data.

Step 240: If the DMX data of the lamp is less than the first preset threshold, determine the target current of the lamp according to the pulse duty cycle and the preset ratio curve; the preset ratio curve is a ratio curve of the current and the pulse duty cycle.

Among them, the DMX data of the lamp is a value in the range of 1-255. The DMX data of the lamp can be used to divide the brightness range of the LED lamp. The brightness range of the LED lamp can include a low brightness range, a medium brightness range and a high brightness range. The first preset threshold can be the maximum value of the DMX data corresponding to the low brightness range. If the DMX data of the lamp is less than the first preset threshold, that is, when the lamp is in the low brightness range, according to the pulse duty cycle and the preset ratio curve, Determine the target current for the lamp. The preset ratio curve is the ratio curve of the target current and the pulse duty cycle. The preset ratio curve can be the change curve of the target current and the pulse duty cycle obtained through a large number of experimental verifications, and the obtained preset ratio curve is stored. . As shown in FIGS. 3-5 , FIG. 3 is a schematic diagram of a preset ratio curve provided by the embodiment of the present application, wherein the horizontal axis represents the pulse duty cycle, and the vertical axis represents the target current. The straight line is the ratio curve corresponding to the existing PWM pulse duty ratio dimming method, and the curve is the ratio curve corresponding to the compound dimming method combining the pulse duty ratio and the target current provided by the embodiment of the present application. FIG. 4 is an enlarged schematic diagram of a preset ratio curve provided by an embodiment of the present application, that is, an enlarged diagram of the preset ratio curve corresponding to the smallest dashed box in FIG. 3;

FIG. 5 is an enlarged schematic diagram of another preset ratio curve provided by the embodiment of the present application, that is, an enlarged diagram of the preset ratio curve corresponding to the middle dashed box in FIG. 3 .

Step 260: Control the brightness of the lamp to be adjusted according to the target current.

Wherein, after the target current of the lamp is determined according to the pulse duty cycle and the preset ratio curve, the brightness of the lamp to be adjusted can be controlled according to the target current. The larger the target current, the higher the brightness of the lamp to be adjusted.

In this embodiment, by obtaining the DMX data and the pulse duty ratio of the lamp to be adjusted; if the DMX data of the lamp is less than the first preset threshold, the target current of the lamp is determined according to the pulse duty ratio and the preset ratio curve; according to The target current controls the brightness of the lamp to be adjusted. Since the preset ratio curve is the ratio curve of current and pulse duty ratio, the target current of the lamp can be determined from the preset ratio curve through the pulse duty ratio, and the compound dimming of LED lamps can be performed by combining the pulse duty ratio and the target current. It is assumed that the target current in the ratio curve increases slowly with the change of the pulse duty cycle, so that the LED lamps gradually become brighter under low brightness, so as to meet the actual needs of stage lighting and enrich the dimming effect of LED lamps.

In one embodiment, when obtaining the pulse duty ratio of the lamp to be adjusted, optionally, the pulse duty ratio of the lamp to be adjusted can be obtained from the preset data table according to the DMX data; the preset data table stores the The mapping relationship between each DMX data and each pulse duty cycle.

Among them, the preset data table is the mapping relationship between each DMX data and each pulse duty cycle. When dimming LED lamps, you can first obtain the dimming curve input by the user through the man-machine interface. The dimming curve can include linear dimming lines, Square dimming line (parabolic dimming line), logarithmic dimming line (anti-parabolic dimming line), S-curve dimming line and cubic dimming line, etc. The preset data table can include each DMX data and each pulse under different dimming curves The mapping relationship of duty cycle. As shown in Figure 6-Figure 8, Figure 6 is a schematic diagram of a preset data table provided by the embodiment of the application, which shows the preset data table of the lamp in a part of the low brightness range; Figure 7 is the implementation of the application The schematic diagram of another kind of preset data table provided by the example, which shows the preset data table under the brightness range in some parts; FIG. is the preset data sheet for some of the high brightness ranges.

In one embodiment, as shown in FIG. 9 , it shows a flow chart of a brightness control method provided by the embodiment of the present application, specifically related to the process of determining the target current of the lamp, and the method may include the following steps:

Step 920, acquiring the brightness delay time of the lamp to be adjusted.

Step 940: Determine a preset target ratio curve corresponding to the brightness delay time according to the brightness delay time.

Step 960: Determine the target current of the lamp according to the pulse duty cycle and the preset target ratio curve.

Wherein, the brightness delay time is the dimming range of the lamp to be adjusted at low brightness, that is, the time period for the lamp to be adjusted to gradually brighten after being powered on. The brightness delay time of the lamp to be adjusted can be input by the user on the man-machine interface, or the corresponding brightness delay time can be selected by controlling the brightness delay button on the remote controller of the lamp to be adjusted. The brightness delay time corresponds to the preset target ratio curve. After obtaining the brightness delay time of the lamp to be adjusted, the preset target ratio curve corresponding to the brightness delay time can be determined according to the brightness delay time, so as to determine the preset The target ratio curve, and then determine the target current of the lamp according to the pulse duty cycle and the preset target ratio curve.

In this embodiment, by obtaining the brightness delay time of the lamp to be adjusted, the preset target ratio curve corresponding to the brightness delay time is determined according to the brightness delay time, and the brightness of the lamp is determined according to the pulse duty cycle and the preset target ratio curve. target current. Since the user only needs to select the corresponding brightness delay time according to the actual needs of the stage, the target current of the lamp can be determined, so that the brightness of the lamp can be controlled, the convenience of adjusting the brightness of the lamp is improved, and the intelligence of human-computer interaction is improved. sex.

In one embodiment, as shown in FIG. 10 , it shows a flow chart of a brightness control method provided by the embodiment of the present application, specifically related to the process of determining the target current of the lamp according to the capacitance value, and the method may include The following steps:

Step 1020, acquire the resistance value of the first current regulation circuit.

Wherein, the first current regulating circuit is a capacitor resistance charging and discharging circuit, as shown in FIG. 11 , which is a schematic diagram of a regulating circuit provided in an embodiment of the present application. The dotted line box 1120 is the first regulating circuit. In the first regulating circuit After being determined, the resistance value in the first current regulating circuit is preset, so that the resistance value of the first current regulating circuit can be calculated through a resistance calculation formula.

Step 1040: Calculate and obtain a target capacitance value connected to the first current regulation circuit according to the brightness delay time and the resistance value.

Wherein, since the first current regulating circuit is a capacitor-resistance charge-discharge circuit, the delay time is equal to the product of the resistance value and the capacitance value. The relationship is calculated to obtain the target capacitance value that needs to be connected to the first current regulation circuit.

Step 1060: Determine a preset ratio curve corresponding to the target capacitance value as the preset target ratio curve according to the target capacitance value.

Wherein, after the target capacitance value is determined, there is also a corresponding relationship between the target capacitance value and the preset ratio curve, as shown in FIG. 12 , which is a schematic diagram of a preset ratio curve corresponding to different target capacitance values provided in the embodiment of the present application. , it can be seen that the larger the target capacitance value is, the slower the corresponding preset ratio curve changes. Therefore, the preset ratio curve corresponding to the target capacitance value can be determined according to the target capacitance value as the preset target ratio curve.

In this embodiment, by obtaining the resistance value of the first current adjustment circuit, according to the brightness delay time and the resistance value, the target capacitance value connected to the first current adjustment circuit is calculated, and the target capacitance value corresponding to the target capacitance value is determined according to the target capacitance value. The preset ratio curve, which serves as the preset target ratio curve. By changing the target capacitance value connected to the first current regulation circuit, the preset target ratio curve is determined, thereby determining the target current of the lamp. The circuit design is simple and easy to implement, thereby improving the convenience and speed of determining the target current of the lamp. .

In one embodiment, after the target capacitance value connected to the first current regulation circuit is calculated and obtained, the capacitance corresponding to the target capacitance value may be connected to the first current regulation circuit through the control of the capacitance switching switch.

Wherein, please continue to refer to FIG. 11, after calculating and obtaining the target capacitance value connected to the first current regulation circuit, the capacitor (the capacitance value of the capacitor is the target capacitance value) can be connected to into the first current regulation circuit. When the capacitor switching switch is controlled to switch, switching of the switch can be controlled by sending a control signal to the corresponding control capacitor switching switch. The capacitance connected to the first current regulating circuit is controlled by the capacitance switching switch, the circuit design is simple and easy to realize, and the convenience of switching the capacitance is improved.

In one embodiment, when determining the target current of the lamp according to the pulse duty ratio and the preset ratio curve, optionally, the circuit switching switch can be controlled to connect to the first current regulation circuit, and the first current regulation circuit can be controlled according to The pulse duty cycle and the preset ratio curve determine the target current of the lamp.

Wherein, if the DMX data of the lamp is less than the first preset threshold, the circuit switch can be controlled to connect to the first current regulation circuit, and the first current regulation circuit can be controlled to determine the target of the lamp according to the pulse duty cycle and the preset ratio curve. current. Please continue to refer to FIG. 11 , the switch can be controlled to switch to the first current regulation circuit 1120 by sending a control signal to the control circuit switch RY1 , that is, the relay RY1 is switched to the signal input of R20 and the discharge resistor of R19 . The access to the first current regulating circuit is controlled by the switching switch of the control circuit, the circuit design is simple and easy to implement, and the convenience of connecting to the first current regulating circuit is improved.

In one embodiment, if the DMX data of the lamp is greater than or equal to the first preset threshold, the control circuit switches the switch to connect to the second current regulation circuit, and controls the second current regulation circuit to determine the target of the lamp according to the pulse duty ratio. current.

Among them, if the DMX data of the lamp is greater than or equal to the first preset threshold, that is, the lamp is in the range of medium brightness or high brightness, please continue to refer to Figure 11, and the switch can be controlled by sending a control signal to the control circuit switch RY1. The second current regulation circuit controls the second current regulation circuit to determine the target current of the lamp according to the pulse duty cycle. The dotted box 1140 is the second current regulation circuit. The access to the second current regulating circuit is controlled by the switching switch of the control circuit, the circuit design is simple and easy to implement, and the convenience of connecting to the second current regulating circuit is improved.

In one embodiment, when controlling the brightness of LED lamps, it can be realized through different modules, which can include a DMX receiving module, a man-machine interface module, an LED control module, a switching module of dimming mode, and adjustment of low-brightness dimming range The module, the LED constant current drive module and the LED module are shown in FIG. 13 , which is a schematic diagram of brightness control provided by the embodiment of the present application. Among them, first, after the lamps are powered on, all the control system MCUs in the lamps start to reset and self-check, and the MCU of the human-machine interface module processes information such as software version, temperature, fan speed and channel value; then, the DMX receiving module receives the information from the lighting console. sent DMX data, and send the data to the human-machine interface module; the user can select the type of dimming curve, dimming mode and low-brightness dimming range (that is, brightness delay time) through the human-machine interface module. The machine interface module sends the DMX data, dimming curve, control signal of dimming mode and control signal of low brightness dimming range to the LED control module; the LED control module outputs the corresponding PWM according to the received DMX data and dimming curve pulse width signal, and send the PWM pulse width signal to the LED constant current drive module; the dimming mode switching module outputs a control signal to the switch RY1 to control the switching of the switch RY1 according to the dimming mode control signal sent by the LED control module; The adjustment module of the low-brightness dimming range outputs control signals to the switches RY2, RY3, RY4 and RY5 according to the control signal of the low-brightness dimming range sent by the switching module of the dimming mode; The constant current drive module outputs the corresponding target current according to the received PWM pulse width signal; the LED module controls the brightness change of the LED lamp according to the target current output by the LED constant current drive module.

It should be understood that although the various steps in the flow charts in FIGS. 2-10 are displayed sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in Figures 2-10 may include multiple steps or stages, these steps or stages are not necessarily executed at the same time, but may be executed at different times, the execution of these steps or stages The sequence is not necessarily performed sequentially, but may be performed alternately or alternately with other steps or at least a part of steps or stages in other steps.

Please refer to FIG. 14 , which shows a block diagram of a brightness control device 1400 provided by an embodiment of the present application. As shown in Figure 14, the brightness control device 1400 may include: a data acquisition module 1402, a target current determination module 1404 and a brightness control module 1406, wherein:

A data acquisition module 1402, configured to acquire DMX data and pulse duty ratio of the lamp to be adjusted;

The target current determination module 1404 is used to determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve if the DMX data of the lamp is less than the first preset threshold; the preset ratio curve is the relationship between the current and the pulse duty ratio ratio curve;

The brightness control module 1406 is configured to control the brightness of the lamp to be adjusted according to the target current.

In one embodiment, the target current determination module 1404 includes an acquisition unit, a first determination unit, and a second determination unit, wherein: the acquisition unit is used to obtain the brightness delay time of the lamp to be adjusted; The delay time determines the preset target ratio curve corresponding to the brightness delay time; the second determination unit is used to determine the target current of the lamp according to the pulse duty cycle and the preset target ratio curve.

In one embodiment, the above-mentioned first determination unit is specifically configured to obtain the resistance value of the first current adjustment circuit; calculate and obtain the target capacitance value connected to the first current adjustment circuit according to the brightness delay time and the resistance value; The value determines a preset ratio curve corresponding to the target capacitance value as the preset target ratio curve.

In one embodiment, as shown in FIG. 15 , the above-mentioned brightness control device 1400 further includes a first control module 1408, and the first control module 1408 is used to control the capacitance corresponding to the target capacitance value to be connected to the first current adjustment through a capacitance switching switch. circuit.

In one embodiment, the above-mentioned target current determination module 1404 further includes a control unit, which is used to control the circuit switching switch to access the first current regulation circuit, and control the first current regulation circuit according to the pulse duty cycle and the preset ratio curve , to determine the target current of the lamp.

In one embodiment, as shown in FIG. 16, the above-mentioned brightness control device 1400 further includes a second control module 1410, the second control module is used to control the circuit to switch the switch if the DMX data of the lamp is greater than or equal to the first preset threshold. The second current regulation circuit is connected, and the second current regulation circuit is controlled to determine the target current of the lamp according to the pulse duty ratio.

In one embodiment, the above-mentioned data acquisition module 1402 includes an acquisition unit, which is used to acquire the pulse duty cycle of the lamp to be adjusted from the preset data table according to the DMX data; the preset data table stores the DMX data and The mapping relationship of each pulse duty cycle.

For the specific definition of the brightness control device, refer to the above definition of the brightness control method, which will not be repeated here. Each module in the above-mentioned brightness control device may be fully or partially realized by software, hardware or a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the operations of the above-mentioned modules.

In one embodiment of the present application, a computer device is provided, the computer device includes a memory and a processor, a computer program is stored in the memory, and the processor implements the following steps when executing the computer program:

Obtain the DMX data and pulse duty ratio of the lamp to be adjusted; if the DMX data of the lamp is less than the first preset threshold, determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve; the preset ratio curve is the current and The ratio curve of the pulse duty cycle; according to the target current, the brightness of the lamp to be adjusted is controlled.

In one embodiment of the present application, the following steps are also implemented when the processor executes the computer program:

Acquire the brightness delay time of the lamp to be adjusted; determine the preset target ratio curve corresponding to the brightness delay time according to the brightness delay time; determine the target current of the lamp according to the pulse duty cycle and the preset target ratio curve.

In one embodiment of the present application, the following steps are also implemented when the processor executes the computer program:

Obtain the resistance value of the first current regulation circuit; calculate the target capacitance value connected to the first current regulation circuit according to the brightness delay time and the resistance value; determine the preset ratio curve corresponding to the target capacitance value according to the target capacitance value, as Preset target ratio curve.

In one embodiment of the present application, the following steps are also implemented when the processor executes the computer program:

The capacitance corresponding to the target capacitance value is connected to the first current regulation circuit through the control of the capacitance switching switch.

In one embodiment of the present application, the following steps are also implemented when the processor executes the computer program:

The switching switch of the control circuit is connected to the first current regulation circuit, and the first current regulation circuit is controlled to determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve.

In one embodiment of the present application, the following steps are also implemented when the processor executes the computer program:

If the DMX data of the lamp is greater than or equal to the first preset threshold, the control circuit switches the switch to connect to the second current regulation circuit, and controls the second current regulation circuit to determine the target current of the lamp according to the pulse duty ratio.

In one embodiment of the present application, the following steps are also implemented when the processor executes the computer program:

According to the DMX data, the pulse duty cycle of the lamp to be adjusted is obtained from the preset data table; the mapping relationship between each DMX data and each pulse duty cycle is stored in the preset data table.

The implementation principles and technical effects of the computer equipment provided by the embodiments of the present application are similar to those of the above-mentioned method embodiments, and will not be repeated here.

In one embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

Obtain the DMX data and pulse duty ratio of the lamp to be adjusted; if the DMX data of the lamp is less than the first preset threshold, determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve; the preset ratio curve is the current and The ratio curve of the pulse duty cycle; according to the target current, the brightness of the lamp to be adjusted is controlled.

In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:

Acquire the brightness delay time of the lamp to be adjusted; determine the preset target ratio curve corresponding to the brightness delay time according to the brightness delay time; determine the target current of the lamp according to the pulse duty cycle and the preset target ratio curve.

In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:

Obtain the resistance value of the first current regulation circuit; calculate the target capacitance value connected to the first current regulation circuit according to the brightness delay time and the resistance value; determine the preset ratio curve corresponding to the target capacitance value according to the target capacitance value, as Preset target ratio curve.

In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:

The capacitance corresponding to the target capacitance value is connected to the first current regulation circuit through the control of the capacitance switching switch.

In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:

The switching switch of the control circuit is connected to the first current regulation circuit, and the first current regulation circuit is controlled to determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve.

In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:

If the DMX data of the lamp is greater than or equal to the first preset threshold, the control circuit switches the switch to connect to the second current regulation circuit, and controls the second current regulation circuit to determine the target current of the lamp according to the pulse duty ratio.

In one embodiment of the present application, when the computer program is executed by the processor, the following steps are also implemented:

According to the DMX data, the pulse duty cycle of the lamp to be adjusted is obtained from the preset data table; the mapping relationship between each DMX data and each pulse duty cycle is stored in the preset data table.

The implementation principle and technical effect of the computer-readable storage medium provided in this embodiment are similar to those of the above-mentioned method embodiments, and details are not repeated here.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the computer programs can be stored in a non-volatile computer-readable memory In the medium, when the computer program is executed, it may include the processes of the embodiments of the above-mentioned methods. Wherein, any references to memory, storage, database or other media used in the various embodiments provided in the present application may include non-volatile and/or volatile memory. Nonvolatile memory can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Chain Synchlink DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above examples only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (9)

1. A brightness control method, characterized in that the method comprises: Obtain the DMX data and pulse duty cycle of the lamp to be adjusted; If the DMX data of the lamp is less than the first preset threshold, then determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve; the preset ratio curve is the ratio of the current and the pulse duty ratio Ratio curve, the first preset threshold is the maximum value of the DMX data corresponding to the low brightness range; controlling the brightness of the lamp to be adjusted according to the target current; The determining the target current of the lamp according to the pulse duty cycle and the preset ratio curve includes: Obtain the brightness delay time of the lamp to be adjusted; determining a preset target ratio curve corresponding to the brightness delay time according to the brightness delay time; The target current of the lamp is determined according to the pulse duty ratio and the preset target ratio curve. 2. The method according to claim 1, wherein the determining the preset target ratio curve corresponding to the brightness delay time according to the brightness delay time includes: Acquiring the resistance value of the first current regulation circuit; Calculate and obtain a target capacitance value connected to the first current regulation circuit according to the brightness delay time and the resistance value; A preset ratio curve corresponding to the target capacitance value is determined according to the target capacitance value as the preset target ratio curve. 3. The method according to claim 2, wherein the method further comprises: The capacitance corresponding to the target capacitance value is connected to the first current regulation circuit through the control of the capacitance switching switch. 4. The method according to claim 2, wherein the determining the target current of the lamp according to the pulse duty cycle and the preset ratio curve comprises: The control circuit switch is connected to the first current regulation circuit, and controls the first current regulation circuit to determine the target current of the lamp according to the pulse duty ratio and the preset ratio curve. 5. The method according to claim 1, wherein the method further comprises: If the DMX data of the lamp is greater than or equal to the first preset threshold, the control circuit switch is connected to the second current regulation circuit, and the second current regulation circuit is controlled to determine the lamp according to the pulse duty ratio. target current. 6. The method according to claim 1, wherein said obtaining the pulse duty cycle of the lamp to be adjusted comprises: According to the DMX data, the pulse duty cycle of the lamp to be adjusted is obtained from a preset data table; the mapping relationship between each DMX data and each pulse duty cycle is stored in the preset data table. 7. A brightness control device, characterized in that the device comprises: The data acquisition module is used to acquire the DMX data and the pulse duty cycle of the lamp to be adjusted; The target current determination module is used to determine the target current of the lamp according to the pulse duty cycle and the preset ratio curve if the DMX data of the lamp is less than the first preset threshold; the preset ratio curve is The ratio curve of current and pulse duty cycle, the first preset threshold is the maximum value of the DMX data corresponding to the low brightness range; a brightness control module, configured to control the brightness of the lamp to be adjusted according to the target current; The target current determination module is also used to obtain the brightness delay time of the lamp to be adjusted; determine a preset target ratio curve corresponding to the brightness delay time according to the brightness delay time; Duty ratio and the preset target ratio curve determine the target current of the lamp. 8. A computer device, characterized in that it comprises a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the method according to any one of claims 1 to 6 is realized A step of. 9. A computer-readable storage medium, wherein a computer program is stored thereon, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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