A combined junction box light regulation method and storage medium

Abstract

The present invention provides a combined junction box light regulation method and a storage medium, including turning on the power supply module, the control module outputs a first signal to the dimming module, and the dimming module performs a self-calibration operation according to the first signal; obtaining a first DC signal of the power supply module and a second DC signal output by the dimming module, the first absorption unit limits the current of the first DC signal to obtain a first DC signal value, and the second absorption unit limits the current of the second DC signal to obtain a second DC signal value; filtering the first DC signal value and the second DC signal value to obtain a first DC output value and a second DC output value, comparing the first DC output value and the second DC output value to obtain a first execution output value; the dimming module adjusts the light source according to the first execution output value. According to the technical solution of this embodiment, it is possible to avoid flickering during the dimming process of the dimming system and improve the stability of the dimming system.

Description

Technical Field

[0001] The present invention relates to the technical field of junction boxes, and particularly relates to a combined junction box light adjustment method and a storage medium. Background Art

[0002] Currently, in large shopping malls, offices or public places, the indoor light source adjustment system is relatively complex, including multiple lamps and various dimming requirements. By connecting the light source adjustment system to a junction box uniformly, the junction box is used to connect and manage the light source adjustment system uniformly. However, the existing light source system adjustment methods will all cause different degrees of flickering in the dimming process of the dimming system, and the stability of the dimming system is poor, resulting in lamps being more likely to malfunction or be damaged. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a combined junction box light adjustment method and a storage medium, which can avoid flickering in the dimming process of the dimming system and improve the stability of the dimming system.

[0004] In a first aspect, an embodiment of the present invention provides a combined junction box light adjustment method, which is applied to a junction box dimming circuit. The junction box dimming circuit includes a power supply module, a control module, a dimming module and an absorption module. The power supply module and the control module are respectively connected to the power supply module, the dimming module and the absorption module. The absorption module is provided with a first absorption unit and a second absorption unit. The first absorption unit is connected to the power supply module, and the second absorption unit is connected to the dimming module. The combined junction box light adjustment method includes:

[0005] Turn on the power supply module to enable the power supply module to supply power to the control module, the dimming module and the absorption module. The control module outputs a first signal to the dimming module, and the dimming module performs a self-calibration operation according to the first signal;

[0006] Obtain a first DC signal of the power supply module and a second DC signal output by the dimming module. The first absorption unit limits the current of the first DC signal to obtain a first DC signal value, and the second absorption unit limits the current of the second DC signal to obtain a second DC signal value;

[0007] The control module filters the first DC signal value and the second DC signal value to obtain a first DC output value and a second DC output value, and compares the first DC output value and the second DC output value to obtain a first execution output value;

[0008] The dimming module adjusts the light source according to the first execution output value.

[0009] In some embodiments of the present invention, the dimming module adjusts the light source according to the first execution output value, including:

[0010] Obtain the PWM adjustment signal of the dimming module;

[0011] Filter the PWM adjustment signal and input the filtered PWM adjustment signal into the control module;

[0012] Determine the rated voltage of the load, and the control module adjusts the first duty cycle of the filtered PWM adjustment signal according to the current level state of the load;

[0013] Confirm the current level state of the PWM adjustment signal, and the control module controls the dimming module to perform a voltage regulation operation according to the rated voltage to adjust the brightness of the load.

[0014] In some embodiments of the present invention, the dimming module is provided with a first diode, a first transformer, a first triode, a first resistor and a first operational amplifier. The anode of the first diode is connected to the control module, the cathode of the first diode is connected to the first end of the first transformer, the second end of the first transformer is connected to the control module, the third end of the first transformer and the gate of the first triode are both connected to the power supply module, the fourth end of the transformer is connected to the drain of the first triode, the source of the first triode is connected to the input end of the first operational amplifier, one end of the output end of the operational amplifier is connected to one end of the first resistor, the other end of the first resistor is connected to the load, and the dimming module adjusts the light source according to the first execution output value, including:

[0015] The control module converts the first execution output value into a PWM adjustment signal;

[0016] When the current level state of the PWM adjustment signal is the first level state, turn on the first triode and output a first voltage to the operational amplifier to generate a first current on the first resistor;

[0017] When the current level state is the second level state, the first transformer boosts the PWM adjustment signal according to a preset adjustment threshold, the PWM adjustment signal is adjusted from the second level state to the high level state, and a second voltage is output to the operational amplifier to generate a second current on the first resistor;

[0018] When the PWM adjustment signal is in the third level state, the first transformer steps down the PWM adjustment signal according to the adjustment threshold, and the PWM adjustment signal is adjusted from the third level state to the low level state, generating a third current on the first resistor;

[0019] Adjust the brightness of the load according to the first current, the second current and the third current.

[0020] In some embodiments of the present invention, the control module converts the first execution output value into a PWM adjustment signal, including:

[0021] Filter and amplify the first execution output value to obtain a second execution output value;

[0022] Obtain the target output value of the load, and calculate the second PWM duty cycle of the load according to the target output value and the second execution output value;

[0023] The control module converts the second execution output value into the PWM adjustment signal according to the second PWM duty cycle.

[0024] In some embodiments of the present invention, the first absorption unit is provided with a first capacitor, a second resistor and a third resistor. One ends of the second resistor, the third resistor and the first capacitor are all connected to the dimming module, and the other ends of the second resistor and the third resistor are both connected to the other end of the first capacitor. The first absorption unit limits the current of the first DC signal to obtain a first DC signal value, including:

[0025] The control module obtains the first voltage threshold range of the first DC signal;

[0026] When the first current voltage threshold of the first DC signal is lower than the first voltage threshold range, the control module charges the first capacitor according to the first DC signal until the real-time capacitor voltage value of the first capacitor is within the first voltage threshold range, and obtains the first DC signal value of the first capacitor;

[0027] When the current voltage threshold of the first DC signal is higher than the first voltage threshold range, the second resistor and the third resistor absorb the extra voltage of the first DC signal, and the first capacitor absorbs the extra current of the first DC signal until the real-time capacitor voltage value is within the first voltage threshold range.

[0028] In some embodiments of the present invention, the second absorption unit is provided with a fourth resistor and a first differential-mode inductor. Both the fourth resistor and the first differential-mode inductor are connected to the dimming module. The second absorption unit limits the current of the second DC signal to obtain a second DC signal value, including:

[0029] The control module acquires the first differential-mode frequency range of the second DC signal and the real-time differential-mode frequency information of the second DC signal;

[0030] When the real-time differential-mode frequency information is higher than the first differential-mode frequency range, the first differential-mode inductor absorbs the real-time differential-mode frequency information until the real-time differential-mode frequency information is within the first differential-mode frequency range;

[0031] When the real-time differential-mode frequency information is lower than the first differential-mode frequency range, the first differential-mode inductor supplements the real-time differential-mode frequency information until the real-time differential-mode frequency information is within the first differential-mode frequency range.

[0032] In some embodiments of the present invention, the control module is provided with a self - recovery constant - current control unit. The self - recovery constant - current control unit includes a first communication socket, a first chip, a second chip, a second diode, a third diode, a fourth diode, a second triode, a first voltage - stabilizing diode, a second voltage - stabilizing diode, a first MOSFET, and a second MOSFET. The self - recovery constant - current control unit is connected to the control module through the first communication socket. The emitter of the second triode is respectively connected to the first communication socket and the first chip. The base of the second triode is connected to the anode of the second diode. The cathodes of the second diode and the third diode are both connected to the second chip. The collector of the second triode is respectively connected to the drain of the first MOSFET and the anode of the fourth diode. The gate of the first MOSFET is connected to one end of the first voltage - stabilizing diode. The other end of the first voltage - stabilizing diode is connected to the second chip. The source of the first MOSFET is connected to the source of the second MOSFET. The drain of the second MOSFET is connected to the second chip. The gate of the second MOSFET is connected to one end of the second voltage - stabilizing diode. The other end of the second voltage - stabilizing diode is connected to the cathode of the fourth diode. After obtaining the execution output value, the method further includes:

[0033] Confirm whether the execution output value is within a preset first threshold range. When the first execution output value is not within the first threshold range, the control module inputs the first execution output value to the self - recovery constant - current control unit through the first communication socket;

[0034] When the first execution output value is less than the first threshold range, the first chip increases the base current of the second triode. After the base current of the second triode decreases, the second chip reduces the gate voltages of the first MOSFET and the second MOSFET;

[0035] Until the first execution output value is continuously and stably within the first threshold range, so that the control module converts the first execution output value into a PWM regulation signal.

[0036] In some embodiments of the present invention, the dimming module is further provided with a self - recovery multi - path constant - current unit. The self - recovery multi - path constant - current unit includes a voltage - stabilizing over - current protection circuit and a plurality of current - limiting circuits. The voltage - stabilizing over - current protection circuit includes a second operational amplifier, a third operational amplifier, a fifth diode, a sixth diode, and a plurality of constant - current output ports. The plurality of current - limiting circuits are connected to the plurality of constant - current output ports. After adjusting the brightness of the load, the method further includes:

[0037] Obtain the real - time output value of the dimming module and the duty cycle of the PWM regulation signal;

[0038] Confirm the conduction time of the dimming module. The control module controls the reference potentials of the second operational amplifier and the third operational amplifier according to the conduction time of the dimming module, the real - time output value, and the duty cycle;

[0039] Adjust the constant current of the self - recovery multi - path constant - current unit according to the reference potential to stabilize the voltage of the load.

[0040] In some embodiments of the present invention, the dimming module is further provided with a self - recovery multi - path constant - current unit. The self - recovery multi - path constant - current unit includes a voltage - stabilizing over - current protection circuit and a plurality of current - limiting circuits. The voltage - stabilizing over - current protection circuit includes a second operational amplifier, a third operational amplifier, a fifth diode, a sixth diode, and a plurality of constant - current output ports. The plurality of current - limiting circuits are connected to the plurality of constant - current output ports. The anode of the fifth diode is connected to the second operational amplifier, the cathode of the fifth diode is connected to the cathode of the sixth diode, and the anode of the sixth diode is connected to the third operational amplifier. After the dimming module adjusts the light source according to the first execution output value, the method further includes:

[0041] Compare the constant current with a first reference current preset in the fourth operational amplifier;

[0042] When the constant current is greater than the first reference current, the current - limiting circuit limits the current of the self - recovery multi - path constant - current unit;

[0043] When the load increases, the control module increases the output voltage of the current limiting circuit; when the load decreases, the control module decreases the output voltage.

[0044] In a second aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions for executing the combined junction box light adjustment method as described in the first aspect above.

[0045] The combined junction box light adjustment method according to the embodiment of the present invention has at least the following beneficial effects:

[0046] Turn on the power supply module so that the power supply module supplies power to the control module, the dimming module, and the absorption module. The control module outputs a first signal to the dimming module, and the dimming module performs a self-calibration operation according to the first signal; obtain the first DC signal of the power supply module and the second DC signal output by the dimming module. The first absorption unit limits the current of the first DC signal to obtain a first DC signal value, and the second absorption unit limits the current of the second DC signal to obtain a second DC signal value; the control module filters the first DC signal value and the second DC signal value to obtain a first DC output value and a second DC output value, compares the first DC output value and the second DC output value to obtain a first execution output value; the dimming module adjusts the light source according to the first execution output value. According to the technical solution of this embodiment, it is possible to avoid flickering during the dimming process of the dimming system and improve the stability of the dimming system. Description of the Drawings

[0047] Figure 1 is a flowchart of a combined junction box light adjustment method provided by an embodiment of the present invention;

[0048] Figure 2 is a flowchart of the dimming module adjusting the light source according to the first execution output value provided by an embodiment of the present invention;

[0049] Figure 3 is a flowchart of adjusting the brightness of the load provided by an embodiment of the present invention;

[0050] Figure 4 is a flowchart of the control module converting the first execution output value into a PWM adjustment signal provided by an embodiment of the present invention;

[0051] Figure 5 is a flowchart of the first absorption unit limiting the current of the first DC signal to obtain a first DC signal value provided by an embodiment of the present invention;

[0052] Figure 6 is a flowchart of the second absorption unit limiting the current of the second DC signal to obtain a second DC signal value provided by an embodiment of the present invention;

[0053] Figure 7 is the flowchart after obtaining the first execution output value provided by an embodiment of the present invention;

[0054] Figure 8 is the flowchart after the dimming module adjusts the light source according to the first execution output value provided by an embodiment of the present invention;

[0055] Figure 9 is the flowchart for adjusting the constant current of the self - recovery multi - path constant - current unit according to the reference potential provided by an embodiment of the present invention;

[0056] Figure 10 is the circuit schematic diagram of the dimming module provided by an embodiment of the present invention;

[0057] Figure 11 is the circuit schematic diagram of the self - recovery constant - current circuit provided by an embodiment of the present invention;

[0058] Figure 12 is the circuit schematic diagram of the voltage - stabilizing over - current protection circuit provided by an embodiment of the present invention;

[0059] Figure 13 is the circuit schematic diagram of the current - limiting circuit provided by an embodiment of the present invention;

[0060] Figure 14 is the circuit schematic diagram of the first absorption unit provided by an embodiment of the present invention;

[0061] Figure 15 is the circuit schematic diagram of the second absorption unit provided by an embodiment of the present invention. Detailed Embodiments

[0062] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0063] In the description of the present invention, it should be understood that for the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0064] In the description of the present invention, "several" means one or more, "multiple" means more than two, and understandings such as "greater than", "less than", and "exceeding" do not include the present number, while understandings such as "above", "below", and "within" include the present number. If "first" and "second" are described, they are only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0065] In the description of the present invention, unless otherwise clearly defined, words such as "setting", "installing", and "connecting" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0066] An embodiment of the present invention provides a combined junction box light regulation method, which is applied to a junction box dimming circuit. The junction box dimming circuit includes a power supply module, a control module, a dimming module, and an absorption module. The power supply module and the control module are respectively connected to the power supply module, the dimming module, and the absorption module. The absorption module is provided with a first absorption unit and a second absorption unit. The first absorption unit is connected to the power supply module, and the second absorption unit is connected to the dimming module.

[0067] Refer to Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 and Figure 15 , the dimming module is provided with a first diode, a first transformer, a first triode, a first resistor, and a first operational amplifier. The anode of the first diode is connected to the control module, the cathode of the first diode is connected to the first end of the first transformer, the second end of the first transformer is connected to the control module, the third end of the transformer and the gate of the first triode are both connected to the power supply module, the fourth end of the transformer is connected to the drain of the first triode, the source of the first triode is connected to the input end of the first operational amplifier, one end of the output end of the operational amplifier is connected to one end of the first resistor, and the other end of the first resistor is connected to the load;

[0068] It should be noted that the power supply module is used to provide a stable power supply for the dimming circuit, the control module is used to adjust the dimming module according to different signals or instructions to achieve the dimming effect required by the load, the dimming module is used to adjust the brightness or switch state of the lamp according to the instructions of the control module, and the absorption module is used to absorb the excess energy in the circuit to avoid damage to the internal circuit components due to excessive instantaneous current when the power supply box performs dimming.

[0069] Further, the control module can receive external signals or instructions and precisely adjust the dimming module according to these signals or instructions to achieve the desired dimming effect. This enables the dimming circuit to be flexibly adjusted according to different requirements, meeting the lighting needs in different scenarios. When the dimming module adjusts the brightness of the lamp, it adopts a gradual increase and decrease method, which can prevent the impact of voltage mutation on the lamp and extend the service life of the lamp. Through the first absorption unit and the second absorption unit in the absorption module, the redundant energy in the circuit can be effectively absorbed, preventing the components in the circuit from being damaged due to excessive energy, thereby improving the stability of the overall circuit.

[0070] The first absorption unit is provided with a first capacitor, a second resistor, and a third resistor. One ends of the second resistor, the third resistor, and the first capacitor are all connected to the dimming module, and the other ends of the second resistor and the third resistor are both connected to the other end of the first capacitor; the second absorption unit is provided with a fourth resistor and a first common-mode choke. The fourth resistor and the first common-mode choke are both connected to the dimming module. Specifically, the first absorption unit absorbs the current through multiple resistors and the first capacitor, and the second absorption unit absorbs the current through the common-mode choke, thereby avoiding the misoperation of the thyristor dimming by the power supply and ensuring that the thyristor dimming does not flicker.

[0071] The control module is provided with a self-recovery constant current control unit. The self-recovery constant current control unit includes a first communication socket, a first chip, a second chip, a second diode, a third diode, a fourth diode, a second triode, a first voltage regulator diode, a second voltage regulator diode, a first MOSFET, and a second MOSFET. The self-recovery constant current control unit is connected to the control module through the first communication socket. The emitter of the second triode is respectively connected to the first communication socket and the first chip. The base of the second triode is connected to the anode of the second diode. The cathodes of the second diode and the third diode are both connected to the second chip. The collector of the second triode is respectively connected to the drain of the first MOSFET and the anode of the fourth diode. The gate of the first MOSFET is connected to one end of the first voltage regulator diode. The other end of the first voltage regulator diode is connected to the second chip. The source of the first MOSFET is connected to the source of the second MOSFET. The drain of the second MOSFET is connected to the second chip. The gate of the second MOSFET is connected to one end of the second voltage regulator diode. The other end of the second voltage regulator diode is connected to the cathode of the fourth diode.

[0072] The self - recovery constant - current control unit, through the coordinated action of the first chip, the second chip, and related components such as diodes, triodes, and MOSFETs, ensures a stable current output in the circuit when the load changes or the power supply voltage fluctuates by precisely controlling the current. When the current in the circuit changes, the self - recovery constant - current control unit can respond quickly and adjust the gate voltage of the MOSFET, thereby changing the conduction state of the circuit and restoring the current to the preset constant value. In addition, the self - recovery constant - current control unit has a fault - detection function, which can monitor the working state of the circuit in real - time. Once a fault is detected, it will immediately take measures to recover, ensuring that the circuit can continue to work properly. Due to its self - recovery function, the self - recovery constant - current control unit can significantly improve the reliability of the entire lighting system.

[0073] The dimming module is also provided with a self - recovery multi - path constant - current unit. The self - recovery multi - path constant - current unit includes a voltage - stabilizing over - current protection circuit and multiple current - limiting circuits. The voltage - stabilizing over - current protection circuit includes a second operational amplifier, a third operational amplifier, a fifth diode, a sixth diode, and multiple constant - current output ports. The anode of the fifth diode is connected to the second operational amplifier, the cathode of the fifth diode is connected to the cathode of the sixth diode, the anode of the sixth diode is connected to the third operational amplifier, and the multiple current - limiting circuits are connected to the multiple constant - current output ports.

[0074] When the current in the lighting circuit exceeds the preset value, the voltage - stabilizing over - current protection circuit can respond quickly. Through the comparison function of the operational amplifier, it can detect and limit the excessive current, thereby protecting the lighting circuit from over - current damage and preventing the circuit from burning out or device damage caused by excessive current. When an over - current situation occurs and the circuit is cut off, once the short - circuit point is removed, the voltage - stabilizing over - current protection circuit can automatically resume output without manual intervention, thus improving the reliability and ease of use of the dimming module.

[0075] Through multiple current - limiting circuits, the dimming module can provide a constant current output for multiple light sources simultaneously. This helps to achieve the brightness control of multiple - path light sources and meet the requirements of complex lighting systems. Each current - limiting circuit can limit the current passing through it to ensure that the current does not exceed the preset value, preventing excessive current caused by a single light - source failure and thus improving the safety of the dimming module.

[0076] Each of the multiple current - limiting circuits is provided with a second resistor, a fourth operational amplifier, and a seventh diode. One end of the second resistor is connected to the voltage - stabilizing over - current protection circuit, the other end of the second resistor is connected to the input terminal of the fourth operational amplifier, and the other end of the fourth operational amplifier is connected to the seventh diode.

[0077] The first resistor serves as a sampling resistor to detect the magnitude of the current passing through it. When the current increases, the voltage drop across the first resistor also increases. The fourth operational amplifier receives the voltage drop across the first resistor as an input signal and compares it with a preset reference voltage. When the input signal exceeds the reference voltage, the fourth operational amplifier outputs a control signal to limit the further increase of the current.

[0078] Based on the accompanying drawings, the control method of the embodiments of the present invention will be further elaborated below.

[0079] Refer to Figure 1 , Figure 1 which is a flowchart of a light adjustment method for a combined junction box provided by an embodiment of the present invention. The light adjustment method for the combined junction box includes but is not limited to the following steps:

[0080] Step S11: Turn on the power supply module to supply power to the control module, the dimming module, and the absorption module. The control module outputs a first signal to the dimming module, and the dimming module performs a self-calibration operation according to the first signal.

[0081] It should be noted that when the entire lighting system is started, the power supply module is first turned on. The power supply module provides a stable DC power supply for the dimming circuit and supplies power to various parts such as the control module, the dimming module, and the absorption module. After the power supply module supplies power normally, the control module starts to work. The control module outputs a first signal to the dimming module according to a preset program or an external instruction. After receiving the first signal, the dimming module starts a self-calibration operation. The self-calibration operation includes but is not limited to steps such as detecting circuit parameters and adjusting the working state of circuit elements to ensure that the dimming module can accurately and stably output the required current or voltage.

[0082] Step S12: Obtain the first DC signal of the power supply module and the second DC signal output by the dimming module. The first absorption unit limits the current of the first DC signal to obtain a first DC signal value, and the second absorption unit limits the current of the second DC signal to obtain a second DC signal value.

[0083] It should be noted that the power supply module outputs a stable first DC signal. The first DC signal serves as the reference power supply for the entire lighting system. The dimming module controls the dimming operation according to the instruction of the control module and outputs a second DC signal. The second DC signal reflects the current working state or the output current / voltage value of the dimming module.

[0084] Furthermore, through the current limiting operation of the first absorption unit and the second absorption unit, damage to circuit components caused by excessive current can be effectively prevented, and the current limiting operation can ensure that the DC signal value output by the power supply module and the dimming module is stable and is not affected by load changes or power supply voltage fluctuations. This ensures the stable operation of subsequent circuits (such as loads) and improves the overall performance of the lighting system.

[0085] Step S13, the control module filters the first DC signal value and the second DC signal value to obtain a first DC output value and a second DC output value, and compares the first DC output value and the second DC output value to obtain a first execution output value;

[0086] It should be noted that, through filtering, noise and fluctuations in the signal can be removed, and the first signal value and the second signal value after filtering are used as the first DC output value and the second DC output value, and by comparing the first DC output value and the second DC output value, it can be determined whether the output of the dimming module is accurate. If the output is inaccurate, the control module can adjust the working state of the dimming module in time to ensure the dimming accuracy.

[0087] Further, the control module compares the first DC signal value with the second DC signal value. Based on the comparison result, the control module makes a decision and outputs a first execution output value. This output value may be a control signal for adjusting the working state of the dimming module to ensure that its output matches the output of the power supply module or complies with the expected dimming strategy.

[0088] Output a first execution output value. This output value may be a control signal used to adjust the working state of the dimming module, or a state indication signal used to indicate the current working state of the dimming module.

[0089] Step S14: the dimming module adjusts the light source according to the first execution output value.

[0090] It should be noted that the dimming module can accurately adjust the brightness or color temperature of the load according to the first execution output value (usually a voltage or current signal) so that the light source can adapt to different environments and needs and provide a more comfortable and personalized lighting experience. For example, in situations where a soft atmosphere is required, the dimming module can adjust the light source to a lower brightness; and in situations where bright lighting is required, it can be adjusted to a higher brightness.

[0091] In addition, in one embodiment, referring to Figure 2 ,exist Figure 1 Step S14 of the illustrated embodiment also includes but is not limited to the following steps:

[0092] Step S21, obtaining a PWM adjustment signal of a dimming module;

[0093] Step S22: Filter the PWM adjustment signal and input the filtered PWM adjustment signal into the control module;

[0094] Step S23: Determine the rated voltage of the load, and the control module adjusts the first duty cycle of the filtered PWM adjustment signal according to the current level state of the load;

[0095] Step 24: Confirm the current level state of the PWM adjustment signal, and the control module controls the dimming module to perform a voltage regulation operation according to the rated voltage to adjust the brightness of the load.

[0096] It should be noted that when the dimming circuit performs dimming, the dimming module generates a PWM adjustment signal. The PWM adjustment signal consists of a series of pulses, and the width of the pulses (i.e., the duration of the high level) is variable. By adjusting the width of the pulses (duty cycle), the average power of the load connected to the PWM adjustment signal can be controlled, and thus the brightness of the load can be adjusted. Further, in order to obtain a smoother output waveform, the PWM adjustment signal is filtered, and the filtered PWM adjustment signal is input into the control module. The control module adjusts the first duty cycle of the filtered PWM adjustment signal according to the current level state of the load. The control module continuously confirms the current level state of the PWM adjustment signal to ensure the stability and accuracy of the signal. According to the rated voltage and the current level state of the load, the control module sends an instruction to the dimming module, thereby controlling the dimming module to perform a voltage regulation operation. By adjusting the duty cycle of the PWM adjustment signal and the magnitude of the output voltage, precise adjustment of the load brightness is achieved, and thus a more comfortable and personalized lighting experience is provided for users.

[0097] In addition, in one embodiment, referring to Figure 3 , in Figure 2 the step S24 of the illustrated embodiment, it further includes but is not limited to the following steps:

[0098] Step S31: The control module converts the first execution output value into a PWM adjustment signal;

[0099] Step S32: When the current level state of the PWM adjustment signal is the first level state, turn on the first triode and output a first voltage to the operational amplifier to generate a first current on the first resistor;

[0100] Step S33: When the current level state is the second level state, the first transformer boosts the PWM adjustment signal according to a preset adjustment threshold, the PWM adjustment signal is adjusted from the second level state to the high level state, and a second voltage is output to the first operational amplifier to generate a second current on the first resistor;

[0101] Step S34: When the PWM adjustment signal is in the third level state, the first transformer steps down the PWM adjustment signal according to the adjustment threshold, and the PWM adjustment signal is adjusted from the third level state to the low level state, generating a third current on the first resistor.

[0102] Step S35: Adjust the brightness of the load according to the first current, the second current, and the third current.

[0103] It should be noted that when the current level state of the PWM adjustment signal is the first level state (such as high level), the first triode conducts, the operational amplifier receives the first voltage, and a first current is generated on the first resistor; when the current level state of the PWM adjustment signal is the second level state (such as low level but not reaching the preset adjustment threshold), the first transformer steps up the PWM adjustment signal according to the preset adjustment threshold, and the PWM adjustment signal is adjusted from the second level state to the high level state, the operational amplifier receives the second voltage, and a second current is generated on the first resistor; when the current level state of the PWM adjustment signal is the third level state (such as a certain lower level lower than the preset adjustment threshold), the first transformer steps down the PWM adjustment signal according to the adjustment threshold, and the PWM adjustment signal is adjusted from the third level state to the low level state, the operational amplifier receives a lower voltage (or zero voltage), and a third current is generated on the first resistor.

[0104] It should be noted that the magnitude of the first current depends on the first voltage and the resistance value of the first resistor, the magnitude of the second current depends on the second voltage and the resistance value of the first resistor, and due to the step-up effect, the second voltage may be higher than the first voltage, so the second current may also be greater than the first current. The magnitude of the third current depends on the lower voltage and the resistance value of the first resistor, and due to the step-down effect, the third current may be smaller than the first current and the second current.

[0105] By changing the duty cycle of the PWM adjustment signal, the magnitude of the current on the first resistor can be precisely controlled, and by adjusting the pulse width, the energy transfer can be precisely controlled, thus achieving efficient energy conversion.

[0106] In addition, in an embodiment, referring to Figure 4 , in Figure 3 Step S31 of the shown embodiment, it further includes but is not limited to the following steps:

[0107] Step S41: Filter and amplify the first execution output value to obtain a second execution output value.

[0108] Step S42: Obtain the target output value of the load, and calculate the second PWM duty cycle of the load according to the target output value and the second execution output value.

[0109] Step S43: The control module converts the second execution output value into a PWM adjustment signal according to the second PWM duty cycle.

[0110] It should be noted that by obtaining the target output value of the load and the second execution output value, calculating the second PWM duty cycle, and the control module converting the second execution output value into a corresponding PWM adjustment signal according to the calculated second PWM duty cycle, the PWM adjustment signal can accurately control the working state of the load, such as brightness, etc. When the lighting system does not require full power output, by reducing the PWM duty cycle, the power consumption of the load is reduced, thereby extending the service life of the load and reducing the operating cost of the entire lighting system.

[0111] In addition, in an embodiment, referring to Figure 5 , in Figure 1 step S12 of the illustrated embodiment, it further includes but is not limited to the following steps:

[0112] Step S51: The control module obtains the first voltage threshold range of the first DC signal;

[0113] Step S52: When the first current voltage threshold of the first DC signal is lower than the first voltage threshold range, the control module charges the first capacitor according to the first DC signal until the real-time capacitor voltage value of the first capacitor is within the first voltage threshold range, and obtains the first DC signal value of the first capacitor;

[0114] Step S53: When the current voltage threshold of the first DC signal is higher than the first voltage threshold range, the second resistor and the third resistor absorb the extra voltage of the first DC signal, and the first capacitor absorbs the extra current of the first DC signal until the real-time capacitor voltage value is within the first voltage threshold range.

[0115] It should be noted that by setting the first voltage threshold range, the control module can effectively manage the voltage of the first DC signal. When the voltage of the first DC signal is lower than the threshold range, a charging operation is performed; when the voltage of the first DC signal is higher than the threshold range, the second resistor and the third resistor absorb the excess voltage to ensure the stability of the first DC signal voltage. When the current voltage threshold of the first DC signal is lower than the first voltage threshold range, the first capacitor starts to charge, and the charging process continues until the real-time capacitor voltage value of the first capacitor reaches and remains within the first voltage threshold range. When the voltage of the first DC signal is higher than the threshold range, the first capacitor not only absorbs the extra voltage but also absorbs the extra current of the first DC signal. Through the synergistic effect of the second resistor, the third resistor, and the first capacitor, the dimming circuit can effectively prevent the occurrence of current overload. By precisely controlling the voltage and current, the dimming circuit can operate with higher efficiency.

[0116] In addition, in one embodiment, referring to Figure 6 , in Figure 1 step S12 of the embodiment shown, it further includes but is not limited to the following steps:

[0117] Step S61, the control module obtains the first differential-mode frequency range of the second DC signal and the real-time differential-mode frequency information of the second DC signal;

[0118] Step S62, when the real-time differential-mode frequency information is higher than the first differential-mode frequency range, the first differential-mode inductor absorbs the real-time differential-mode frequency information until the real-time differential-mode frequency information is within the first differential-mode frequency range;

[0119] Step S63, when the real-time differential-mode frequency information is lower than the first differential-mode frequency range, the first differential-mode inductor supplements the real-time differential-mode frequency information until the real-time differential-mode frequency information is within the first differential-mode frequency range.

[0120] It should be noted that the control module first obtains the first differential-mode frequency range of the second DC signal, which is a safe and stable frequency range preset by the system. The control module monitors the differential-mode frequency information of the second DC signal in real time, that is, the real-time differential-mode frequency. The control module compares the real-time differential-mode frequency with the first differential-mode frequency range to determine whether it is within the preset range. When the real-time differential-mode frequency information is higher than the first differential-mode frequency range, it means that there are too many high-frequency components in the signal, and these high-frequency components may cause interference or instability to the system. At this time, under the action of the first differential-mode inductor, the real-time differential-mode frequency information is "absorbed", that is, the high-frequency components are filtered out, so that the real-time differential-mode frequency gradually decreases to the preset range. When the real-time differential-mode frequency information is lower than the first differential-mode frequency range, the first differential-mode inductor will "supplement" the real-time differential-mode frequency information, that is, add necessary frequency components, so that the real-time differential-mode frequency gradually increases to the preset range. The control module continuously monitors the real-time differential-mode frequency information and adjusts the working state of the first differential-mode inductor as needed. Through continuous feedback and adjustment, the control module ensures that the real-time differential-mode frequency information always remains within the first differential-mode frequency range.

[0121] In this embodiment, by precisely controlling the real-time differential-mode frequency information within the first differential-mode frequency range, the system can reduce the interference of high-frequency noise, improve the overall stability, and the lighting system can adapt to different loads and working conditions changes, improving the flexibility and adaptability of the system.

[0122] In addition, in one embodiment, referring to Figure 7 , in Figure 1 after step S13 of the embodiment shown, it further includes but is not limited to the following steps:

[0123] Step S71, confirm whether the first execution output value is within a preset first threshold range. When the first execution output value is not within the first threshold range, the control module inputs the first execution output value to the self - recovery constant - current control unit through the first communication socket;

[0124] Step S72, when the first execution output value is less than the first threshold range, the first chip increases the base current of the second triode. When the base current of the second triode decreases, the second chip reduces the gate voltages of the first MOSFET and the second MOSFET;

[0125] Step S73, until the first execution output value is continuously and stably within the first threshold range, so that the control module converts the first execution output value into a PWM regulation signal.

[0126] It should be noted that when the first execution output value is not within the first threshold range, the control module inputs the first execution output value to the self - recovery constant - current control unit through the first communication socket. The self - recovery constant - current control unit can automatically adjust its output current according to the input first execution output value to keep the current constant. When the first execution output value is less than the first threshold range, it indicates that the dimming circuit needs to increase the output. At this time, the first chip will increase the base current of the second triode. As an electronic amplifier, an increase in the base current of the triode will cause an increase in the collector current, thereby increasing the output of the subsequent circuit. After the base current of the second triode increases and reaches a certain level, the second chip will reduce the gate voltages of the first MOSFET and the second MOSFET. A reduction in the gate voltages of the first MOSFET and the second MOSFET will reduce their conduction degree, thereby reducing the output current. The initial role of the second triode is to increase the output, while the subsequent adjustment of the first MOSFET and the second MOSFET is to stabilize the increased current output. Through the above adjustment process, the dimming circuit will continuously and stably keep the first execution output value within the first threshold range. When the execution output value is stable within the first range, it converts its execution output value into a PWM (Pulse - Width Modulation) regulation signal.

[0127] It should be noted that the first chip is the FAN3111E chip. The FAN3111E is applied to occasions such as switching mode power supplies and high-efficiency MOSFET switches. In this embodiment, the first chip controls the on / off and brightness of the load or light source. The second chip is also the FAN3111E chip. The second chip can provide a relatively high peak current pulse. When the load or lamp is dimmed through a combined junction box, the second chip provides a gate drive signal to ensure that the first MOSFET and the second MOSFET can be turned on or off quickly and completely, thereby affecting the brightness adjustment accuracy and response speed of the lamp or load. In addition, the second chip has a relatively high driving ability and anti-interference ability. Therefore, the second chip can effectively enhance the stability of the dimming circuit, thereby reducing the occurrence of lamp flashing or instability of the lamp or load caused by circuit fluctuations or interference.

[0128] In addition, in one embodiment, referring to Figure 8 , after step S35 of the embodiment shown in Figure 3 , it further includes but is not limited to the following steps:

[0129] Step S81, obtaining the real-time output value of the dimming module and the duty cycle of the PWM adjustment signal;

[0130] Step S82, confirming the conduction time of the dimming module, and the control module controls the reference potentials of the second operational amplifier and the third operational amplifier according to the conduction time, real-time output value and duty cycle of the dimming module;

[0131] Step S83, adjusting the constant current of the self-recovery multi-path constant current unit according to the reference potential to stabilize the load voltage.

[0132] It should be noted that first, the real-time output value of the dimming module and the duty cycle of the PWM adjustment signal are obtained, and the conduction time of the dimming module is confirmed. The real-time output value reflects the current working state of the dimming module. After receiving the above data, the control module will make a comprehensive judgment according to the conduction time, real-time output value and duty cycle of the dimming module. The control module adjusts the reference potentials of the second operational amplifier and the third operational amplifier. According to the reference potentials of the second operational amplifier and the third operational amplifier, the self-recovery multi-path constant current unit will adjust its constant current output. By adjusting the constant current, the dimming circuit can achieve precise control of the load voltage, thereby ensuring that the load operates in a stable working state.

[0133] In addition, in one embodiment, referring to Figure 9 , in Figure 8 step S83 of the embodiment shown, it further includes but is not limited to the following steps:

[0134] Step S91, comparing the constant current with a first reference current preset in the fourth operational amplifier;

[0135] Step S92, when the constant current is greater than the first reference current, the current limiting circuit limits the current of the self - recovering multi - path constant current unit.

[0136] Step S93, when the load increases, the control module increases the output voltage; when the load decreases, the control module decreases the output voltage.

[0137] It should be noted that the system first obtains the constant current output by the self - recovering multi - path constant current unit and compares it with the first reference current preset in the fourth operational amplifier. The first reference current is preset according to system requirements and load characteristics to ensure that the constant current is within a safe and stable range. When the constant current is greater than the first reference current, it indicates that the system output current is too large, which may exceed the load's tolerance or cause system instability. At this time, the current limiting circuit will come into play and limit the current of the self - recovering multi - path constant current unit, that is, reduce the output current to protect the system and the load. When the load increases, the system needs to provide more current to meet the load demand. At this time, the control module will monitor the change in the load current and correspondingly increase the output voltage to maintain the stability of the output current. On the contrary, when the load decreases, the current output by the system will also decrease.

[0138] The embodiment of the present application also provides a storage medium. The storage medium is a computer - readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the above - mentioned optical adjustment method for the combined junction box.

[0139] As a non - transient computer - readable storage medium, the memory can be used to store non - transient software programs and non - transient computer - executable programs. In addition, the memory can include high - speed random - access memory, and can also include non - transient memory, such as at least one magnetic disk storage device, a flash memory device, or other non - transient solid - state storage devices. In some embodiments, the memory may optionally include a memory remotely set relative to the processor, and these remote memories can be connected to the processor through a network. Examples of the above - mentioned network include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and their combinations. The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and may be located in one place, or may be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0140] Those of ordinary skill in the art will understand that all or some of the steps and systems disclosed in the above methods can be implemented as software, firmware, hardware, and their appropriate combinations. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or can be implemented as hardware, or can be implemented as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0141] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A combined junction box light adjustment method, characterized in that Applied to the wiring box dimming circuit, the wiring box dimming circuit includes a power supply module, a control module, a dimming module and an absorption module. The power supply module and the control module are respectively connected to the power supply module, the dimming module and the absorption module. The absorption module is provided with a first absorption unit and a second absorption unit. The first absorption unit is connected to the power supply module, and the second absorption unit is connected to the dimming module. The combined wiring box light adjustment method includes: Turn on the power supply module so that the power supply module supplies power to the control module, the dimming module and the absorption module. The control module outputs a first signal to the dimming module, and the dimming module performs a self-calibration operation according to the first signal; Obtain the first DC signal of the power supply module and the second DC signal output by the dimming module. The first absorption unit limits the current of the first DC signal to obtain a first DC signal value, and the second absorption unit limits the current of the second DC signal to obtain a second DC signal value; The control module filters the first DC signal value and the second DC signal value to obtain a first DC output value and a second DC output value, and compares the first DC output value and the second DC output value to obtain a first execution output value; The dimming module adjusts the light source according to the first execution output value; The dimming module adjusts the light source according to the first execution output value, including: obtaining the PWM adjustment signal of the dimming module; filtering the PWM adjustment signal and inputting the filtered PWM adjustment signal to the control module; determining the rated voltage of the load, and the control module adjusts the first duty cycle of the filtered PWM adjustment signal according to the current level state of the load; confirming the current level state of the PWM adjustment signal, and the control module controls the dimming module to perform a voltage regulation operation according to the rated voltage to adjust the brightness of the load; The second absorption unit is provided with a fourth resistor and a first differential-mode inductor. The fourth resistor and the first differential-mode inductor are both connected to the dimming module. The second absorption unit limits the current of the second DC signal to obtain a second DC signal value, including: the control module obtains the first differential-mode frequency range of the second DC signal and the real-time differential-mode frequency information of the second DC signal; when the real-time differential-mode frequency information is higher than the first differential-mode frequency range, the first differential-mode inductor absorbs the real-time differential-mode frequency information until the real-time differential-mode frequency information is within the first differential-mode frequency range; when the real-time differential-mode frequency information is lower than the first differential-mode frequency range, the first differential-mode inductor supplements the real-time differential-mode frequency information until the real-time differential-mode frequency information is within the first differential-mode frequency range.

2. The combined junction box light adjustment method according to claim 1, wherein The dimming module is provided with a first diode, a first transformer, a first transistor, a first resistor and a first operational amplifier, wherein the anode of the first diode is connected to the control module, the cathode of the first diode is connected to the first end of the first transformer, the second end of the first transformer is connected to the control module, the third end of the first transformer and the gate of the first transistor are both connected to the power supply module, the fourth end of the transformer is connected to the drain of the first transistor, the source of the first transistor is connected to the input end of the first operational amplifier, one end of the output end of the operational amplifier is connected to one end of the first resistor, and the other end of the first resistor is connected to a load, and the brightness of the load is adjusted, including: The control module converts the first execution output value into a PWM regulation signal; When the current level state of the PWM regulation signal is a first level state, turning on the first transistor, outputting a first voltage to the operational amplifier, and generating a first current on the first resistor; When the current level state is the second level state, the first transformer boosts the PWM regulation signal according to a preset regulation threshold, the PWM regulation signal is regulated from the second level state to a high level state, and outputs a second voltage to the operational amplifier, generating a second current on the first resistor; When the PWM regulation signal is in a third level state, the first transformer steps down the PWM regulation signal according to the regulation threshold, and the PWM regulation signal is regulated from the third level state to a low level state, generating a third current on the first resistor; The brightness of the load is adjusted according to the first current, the second current and the third current.

3. The combined junction box light regulation method according to claim 2, characterized in that, The control module converts the first execution output value into a PWM regulation signal, including: filtering and amplifying the first execution output value to obtain a second execution output value; Acquire a target output value of the load, and calculate a second PWM duty cycle of the load according to the target output value and the second execution output value; The control module converts the second execution output value into the PWM regulation signal according to the second PWM duty cycle.

4. The combined junction box light adjustment method according to claim 1, characterized in that, The first absorption unit is provided with a first capacitor, a second resistor and a third resistor, one end of the second resistor, the third resistor and the first capacitor are all connected to the dimming module, the other ends of the second resistor and the third resistor are all connected to the other end of the first capacitor, and the first absorption unit limits the current of the first DC signal to obtain a first DC signal value, including: The control module acquires a first voltage threshold range of the first DC signal; When the first current voltage threshold of the first DC signal is lower than the first voltage threshold range, the control module charges the first capacitor according to the first DC signal until the real-time capacitor voltage value of the first capacitor is within the first voltage threshold range, and obtains a first DC signal value of the first capacitor; When the current voltage threshold of the first DC signal is higher than that within the first voltage threshold range, the second resistor and the third resistor absorb the additional voltage of the first DC signal, and the first capacitor absorbs the additional current of the first DC signal until the real-time capacitor voltage value is within the first voltage threshold range.

5. The combined junction box light adjustment method according to claim 1, characterized in that The control module is provided with a self-restoring constant current control unit. The self-restoring constant current control unit includes a first communication socket, a first chip, a second chip, a second diode, a third diode, a fourth diode, a second triode, a first voltage regulator diode, a second voltage regulator diode, a first MOSFET, and a second MOSFET. The self-restoring constant current control unit is connected to the control module through the first communication socket. The emitter of the second triode is respectively connected to the first communication socket and the first chip. The base of the second triode is connected to the anode of the second diode. The cathodes of the second diode and the third diode are both connected to the second chip. The collector of the second triode is respectively connected to the drain of the first MOSFET and the anode of the fourth diode. The gate of the first MOSFET is connected to one end of the first voltage regulator diode. The other end of the first voltage regulator diode is connected to the second chip. The source of the first MOSFET is connected to the source of the second MOSFET. The drain of the second MOSFET is connected to the second chip. The gate of the second MOSFET is connected to one end of the second voltage regulator diode. The other end of the second voltage regulator diode is connected to the cathode of the fourth diode. After obtaining the first execution output value, the method further includes: Confirming whether the first execution output value is within a preset first threshold range. When the first execution output value is not within the first threshold range, the control module inputs the execution output value to the self-restoring constant current control unit through the first communication socket. When the first execution output value is less than the first threshold range, the first chip increases the base current of the second triode. When the base current of the second triode decreases, the second chip reduces the gate voltages of the first MOSFET and the second MOSFET. Until the execution output value is continuously stabilized within the first threshold range, so that the control module converts the first execution output value into a PWM regulation signal.

6. The combined junction box light adjustment method according to claim 2, characterized in that, The dimming module is further provided with a self - recovery multi - path constant - current unit, and the self - recovery multi - path constant - current unit includes a voltage - stabilizing over - current protection circuit and a plurality of current - limiting circuits. The voltage - stabilizing over - current protection circuit includes a second operational amplifier, a third operational amplifier, a fifth diode, a sixth diode, and a plurality of constant - current output ports. The plurality of current - limiting circuits are connected to the plurality of constant - current output ports. The anode of the fifth diode is connected to the second operational amplifier, the cathode of the fifth diode is connected to the cathode of the sixth diode, and the anode of the sixth diode is connected to the third operational amplifier. After adjusting the brightness of the load, the method further includes: Obtaining the real - time output value of the dimming module and the duty cycle of the PWM adjustment signal; Confirming the conduction time of the dimming module, and the control module controls the reference potentials of the second operational amplifier and the third operational amplifier according to the conduction time of the dimming module, the real - time output value, and the duty cycle; Adjusting the constant current of the self - recovery multi - path constant - current unit according to the reference potential to stabilize the voltage of the load.

7. The combined junction box light adjustment method according to claim 6, characterized in that Each of the plurality of current - limiting circuits is provided with a second resistor, a fourth operational amplifier, and a seventh diode. One end of the second resistor is connected to the voltage - stabilizing over - current protection circuit, the other end of the second resistor is connected to the input end of the fourth operational amplifier, and the other end of the fourth operational amplifier is connected to the seventh diode. Adjusting the constant current of the self - recovery multi - path constant - current unit according to the reference potential includes: Comparing the constant current with a preset first reference current in the fourth operational amplifier; When the constant current is greater than the first reference current, the current - limiting circuit limits the current of the self - recovery multi - path constant - current unit; When the load increases, the control module increases the output voltage, and when the load decreases, the control module decreases the output voltage.

8. A computer-readable storage medium, characterized in that, The computer - readable storage medium stores computer - executable instructions, and the computer - executable instructions are used to cause a computer to execute the combined junction box light - adjustment method according to any one of claims 1 to 7.

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