An IGBT-based sinusoidal wave digital micro-break intelligent dimming method and system

Abstract

The application relates to the technical field of intelligent regulation, and relates to a sine wave digital micro-break intelligent dimming method and system based on IGBT, which comprises the following steps: obtaining an adjustment mode serial number, and querying the adjustment mode serial number by using a local storage unit in a control module to obtain a target scene preset parameter sequence; using a DMX512 bus to distribute the target scene preset parameter sequence to a power module cluster; obtaining three-phase alternating current of each power module in the power module cluster to obtain an initial three-phase alternating current sequence; using the power module cluster to perform IGBT-based power adjustment operation on the initial three-phase alternating current sequence according to the target scene preset parameter sequence to obtain a sine adjustment three-phase alternating current sequence; and sending the sine adjustment three-phase alternating current sequence to a pre-constructed light emitting element device to obtain target intensity light rays; and the application can improve the brightness adjustment accuracy of a lamp under remote control.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology, and in particular to a sinusoidal digital micro-interrupt intelligent dimming method and system based on IGBT. Background Technology

[0002] With the rapid development of the urban landscape lighting industry, the demand for upgrading traditional lighting fixtures that cannot achieve grayscale variations is becoming increasingly strong. Such upgrades can significantly reduce urban lighting construction costs, while also achieving the overall rhythmic and grayscale variation effects required for urban lighting, improving resource utilization, and enabling intelligent control and management of urban lighting.

[0003] The current mainstream approach to urban renewal is to use dimmers based on silicon controlled rectifiers (SCRs). These dimmers control the brightness of the lights by manipulating the conduction time of the SCR. However, SCR dimming has relatively low precision and is prone to flickering at low brightness levels. Furthermore, SCRs achieve dimming by constantly switching AC power current, and these frequent current changes can cause electromagnetic interference to nearby electrical equipment, affecting the normal operation and lifespan of communication and other electronic devices. Summary of the Invention

[0004] This invention provides a sinusoidal digital micro-interrupt intelligent dimming method based on IGBT, the main purpose of which is to improve the accuracy of brightness adjustment of lamps under remote control.

[0005] To achieve the above objectives, this invention provides a sinusoidal digital micro-interrupt intelligent dimming method based on IGBT, comprising: When a pre-built remote adjustment command is received, the pre-built control module is used to parse the remote adjustment command to obtain the adjustment mode number, and the pre-built local storage unit in the control module is used to query the adjustment mode number to obtain the target scene preset parameter sequence. Using a pre-built DMX512 bus, the preset parameter sequence of the target scenario is sent to a pre-built power module cluster, wherein each power module in the power module cluster is connected to a pre-built three-phase power line based on a preset three-phase power supply balance principle. The three-phase AC power of each power module in the power module cluster is obtained to obtain an initial three-phase AC power sequence. Using the power module cluster, according to the preset parameter sequence of the target scenario, the initial three-phase AC power sequence is subjected to IGBT-based power regulation operation to obtain a sinusoidal regulated three-phase AC power sequence. The sinusoidal regulated three-phase AC power sequence is sent to a pre-constructed light-emitting element device to obtain light of the target intensity. Using a pre-built temperature sensor, the temperature information of the pre-built IGBTs in each power module of the power module cluster is obtained to obtain a temperature information sequence. The temperature information sequence is then sent to the control module via the DMX512 bus. Additionally, using a pre-built current sensor, the sinusoidal regulated three-phase AC current sequence is fed back to the control module via the DMX512 bus. Using the control module and the preset protection strategy, the power module cluster is protectively adjusted according to the temperature information sequence and the sinusoidal three-phase AC power sequence to obtain an updated sinusoidal three-phase AC power sequence, and the updated sinusoidal three-phase AC power sequence is sent to the light-emitting element device to obtain an updated target intensity light.

[0006] Optionally, the step of parsing the remote adjustment command using a pre-built control module to obtain the adjustment mode number includes: Using a pre-built control module, the remote adjustment command is format-verified according to the pre-built Art-Net protocol format to obtain the basic verification command; Obtain the instruction editing target of the basic verification instruction, and use a pre-built list of allowed executable instructions to perform legality verification on the instruction editing target. When the legality of the instruction editing target is passed, the basic verification instruction is determined to be a legal instruction. The integrity of the legitimate instruction is verified using a pre-built CRC check algorithm to obtain the instruction to be parsed. The key fields of the instruction to be parsed are parsed using a pre-built Art-Net protocol decoder to obtain the adjustment mode number.

[0007] Optionally, before utilizing the pre-built local storage unit in the control module, the method further includes: When the control module detects that the pre-built rotary encoder has rotated to the preset scene configuration interface, it automatically generates a scene number to be edited. The system obtains the power module parameter sequence input by the user and sends the power module parameter sequence to the power module cluster to obtain the test AC sequence. The system then uses the light-emitting element device to execute the test AC sequence to obtain the debugging effect light. Obtain the adjustment command input by the user based on the light feedback of the debugging effect, and determine the type of the adjustment command; When the adjustment instruction is a preset modification adjustment type, return to the steps described above for obtaining the power module parameter sequence input by the user; When the adjustment instruction is a preset confirmation adjustment type, the power module parameter sequence is filled into the scene number to be edited to obtain a pre-edited number, and the pre-edited number is saved to the local storage unit pre-built in the control module.

[0008] Optionally, the step of sending the target scenario preset parameter sequence to the pre-built power module cluster includes: Obtain the historical illumination parameter sequence, and calculate the difference between the target scene preset parameter sequence and the historical illumination parameter sequence to obtain the illumination intensity change sequence; Determine whether each light intensity change in the light intensity change sequence is greater than a preset dimming value to obtain the dimming mode determination result; Based on the dimming method judgment result and the pre-constructed super S curve, the target scene preset parameter sequence is sent to the pre-constructed power module cluster.

[0009] Optionally, the step of using the power module cluster to perform IGBT-based power regulation on the initial three-phase AC sequence according to the preset parameter sequence of the target scenario to obtain a sinusoidal regulated three-phase AC sequence includes: Obtain a power module from the power module cluster to obtain the target power module; The initial three-phase AC current of the target power module is obtained from the initial three-phase AC current sequence to obtain the target AC current; The target AC power is converted into DC power using the pre-built three-phase bridge rectifier circuit in the target power module to obtain target DC power. The target DC power is then smoothed using a pre-built filter capacitor to obtain stable DC power. The target power grid frequency is obtained, and the zero-crossing point of the three-phase power lines is monitored using a pre-built phase-locked loop circuit to obtain a reference synchronization signal that is synchronized with the target power grid frequency. Based on the reference synchronization signal, the pre-built IGBT in the target power module is configured with a time reference to obtain the target IGBT; A high-frequency carrier is acquired, and a PWM modulation signal is acquired based on the high-frequency carrier and the target power grid frequency. The target IGBT is then used to chop the stable DC power according to the PWM modulation signal to obtain the sinusoidal regulated three-phase AC power of the target power module. By summing the sinusoidal regulated three-phase AC currents of each target power module in the power module cluster, a sinusoidal regulated three-phase AC current sequence is obtained.

[0010] Optionally, sending the sinusoidally regulated three-phase alternating current sequence to a pre-constructed light-emitting element device to obtain target intensity light includes: Acquire images of the light intensity and environment at the location of the light-emitting element device; The illumination intensity is quantized to obtain an illumination vector, and the environmental image is feature extracted to obtain environmental features; Using a pre-trained adaptive lighting adjustment model, the sinusoidal three-phase AC power sequence is adjusted based on light intensity and color temperature according to the illumination vector and environmental characteristics to obtain an adaptive AC power sequence. The adaptive AC power sequence is then sent to a pre-built light-emitting element device to obtain the target intensity light.

[0011] Optionally, the step of using the control module and a preset protection strategy to perform protective adjustments on the power module cluster based on the temperature information sequence and the sinusoidal three-phase AC current sequence to obtain an updated sinusoidal three-phase AC current sequence includes: Using the control module, it is determined whether there is temperature information in the temperature information sequence that is greater than a preset temperature threshold, and whether there is a regulated three-phase AC current in the sinusoidal regulated three-phase AC current sequence that is greater than a preset current threshold. The power module whose temperature information exceeds the temperature threshold is classified as a preset overheating type, and the power module whose current information exceeds the current threshold for regulating three-phase AC power is classified as a preset overcurrent type. Obtain each power module of the overheating type to obtain an overheating power module cluster; obtain each power module of the overcurrent type to obtain an overcurrent power module cluster. According to the protection strategy, the circuit connection of the overheated power module cluster and the overcurrent power module cluster in the power module cluster is adjusted to obtain a replacement and updated power module cluster. Based on the replacement and update of the power module cluster, obtain the updated sinusoidal three-phase AC power sequence.

[0012] Optionally, adjusting the circuit connections of the overheated power module cluster and the overcurrent power module cluster in the power module cluster according to the protection strategy to obtain a replacement and updated power module cluster includes: According to the protection strategy, the overheated power module cluster is replaced by the backup power module cluster pre-built on the DMX512 bus to obtain a replacement module cluster. Using the DMX512 bus, the overcurrent power module cluster in the replacement module cluster is disconnected to obtain a replacement and updated power module cluster.

[0013] Optionally, after adjusting the circuit connections of the overheated power module cluster and the overcurrent power module cluster in the power module cluster according to the protection strategy to obtain a replacement and updated power module cluster, the method further includes: Obtain the protection adjustment logs based on the replacement and update of the power module cluster; According to the Art-Net protocol format, the protection adjustment log is uploaded to the pre-built cloud service device; Using the cloud service device, the protection adjustment log is identified based on the overcurrent power module cluster to obtain fault module information; Query the repair department information corresponding to the faulty module information; Based on the maintenance department information, the fault module information is sent to the pre-built maintenance center.

[0014] To achieve the above objectives, the present invention also provides a sinusoidal digital micro-break intelligent dimming system based on IGBT, comprising: The dimming activation module is used to parse the remote adjustment command using a pre-built control module when a pre-built remote adjustment command is received, obtain the adjustment mode number, and query the adjustment mode number using a pre-built local storage unit in the control module to obtain the target scene preset parameter sequence. A dimming module is used to send the target scene preset parameter sequence to a pre-built power module cluster using a pre-built DMX512 bus. Each power module in the power module cluster is connected to a pre-built three-phase power line based on a preset three-phase power supply balance principle. The module obtains the three-phase AC power of each power module in the power module cluster to get an initial three-phase AC power sequence. Using the power module cluster, the module performs IGBT-based power adjustment on the initial three-phase AC power sequence according to the target scene preset parameter sequence to get a sinusoidal adjusted three-phase AC power sequence. The monitoring module is used to send the sinusoidal regulated three-phase AC power sequence to the pre-built light-emitting element device to obtain the target intensity light, and to use the pre-built temperature sensor to obtain the temperature information of the pre-built IGBTs in each power module of the power module cluster to obtain the temperature information sequence, and to use the DMX512 bus to send the temperature information sequence to the control module, and to use the pre-built current sensor to feed back the sinusoidal regulated three-phase AC power sequence to the control module through the DMX512 bus; The feedback adjustment module is used to perform protective adjustments on the power module cluster based on the temperature information sequence and the sinusoidal three-phase AC power sequence using the control module and the preset protection strategy, to obtain an updated sinusoidal three-phase AC power sequence, and to send the updated sinusoidal three-phase AC power sequence to the light-emitting element device to obtain an updated target intensity light.

[0015] To address the above problems, the present invention also provides an electronic device, the electronic device comprising: Memory, storing at least one instruction; The processor executes the instructions stored in the memory to implement the above-described IGBT-based sinusoidal digital micro-break intelligent dimming method.

[0016] To address the aforementioned problems, the present invention also provides a computer-readable storage medium storing at least one instruction, which is executed by a processor in an electronic device to implement the aforementioned IGBT-based sinusoidal digital micro-interrupt intelligent dimming method.

[0017] To address the problems described in the background section, this invention first receives remote adjustment commands via a wireless device, then parses these commands to obtain a preset parameter sequence for the target scene. This sequence is then transmitted to the power module cluster via a DMX512 bus, enabling numerical adjustment of the power module cluster. The power module cluster employs IGBT-based power adjustment, using high-frequency chopping dimming to improve adjustment accuracy and avoid flickering, thus enhancing the control effect. Furthermore, this invention incorporates protection strategies, allowing for timely switching of power modules during lighting adjustments to prevent damage to the light-emitting devices. Disconnecting power modules also prevents damage to the entire circuit from damaged light-emitting devices. This protection not only safeguards the circuit but also allows for timely detection of damaged light-emitting devices, improving system maintenance efficiency. Therefore, this invention improves the accuracy of lighting brightness adjustment under remote control. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating an embodiment of the intelligent dimming method for sinusoidal digital micro-interrupts based on IGBTs provided by the present invention. Figure 2 A functional block diagram of a sinusoidal digital micro-break intelligent dimming system based on IGBT provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electronic device that implements the IGBT-based sinusoidal digital micro-interrupt intelligent dimming method, according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. Electronic device; 11. Processor; 12. Memory; 13. Bus.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] This application provides a sinusoidal digital micro-interrupt intelligent dimming method based on IGBTs. The executing entity of the IGBT-based sinusoidal digital micro-interrupt intelligent dimming method includes, but is not limited to, at least one of the following electronic devices that can be configured to execute the method provided in this application: a server, a terminal, etc. In other words, the IGBT-based sinusoidal digital micro-interrupt intelligent dimming method can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0023] Reference Figure 1 The diagram shown is a schematic flowchart of a sinusoidal digital micro-interrupt intelligent dimming method based on IGBT provided in an embodiment of the present invention. In this embodiment, the sinusoidal digital micro-interrupt intelligent dimming method based on IGBT includes: S1. When a pre-built remote adjustment command is received, the remote adjustment command is parsed using the pre-built control module to obtain the adjustment mode number, and the adjustment mode number is queried using the pre-built local storage unit in the control module to obtain the target scene preset parameter sequence.

[0024] The remote adjustment command refers to the command signal sent by the user through a mobile terminal or terminal device to change the lights.

[0025] The control module refers to the control center that controls the power of the lights. It is used to parse remote adjustment commands and send the parsing results to the subsequent power module.

[0026] The parsing refers to the process of verifying and decrypting the encrypted remote adjustment command. The adjustment mode number is the parsing result of the remote adjustment command, such as Scene 1, Scene 2, or a holiday lighting scene.

[0027] The local storage unit refers to a device that can store data, such as Flash.

[0028] The query involves using the database string query function to retrieve the target scenario preset parameter sequence from the database for the adjustment mode number. The target scenario preset parameter sequence refers to the parameters corresponding to each power module for the adjustment mode number.

[0029] In detail, in this embodiment of the invention, the step of parsing the remote adjustment command using a pre-built control module to obtain the adjustment mode number includes: Using a pre-built control module, the remote adjustment command is format-verified according to the pre-built Art-Net protocol format to obtain the basic verification command; Obtain the instruction editing target of the basic verification instruction, and use a pre-built list of allowed executable instructions to perform legality verification on the instruction editing target. When the legality of the instruction editing target is passed, the basic verification instruction is determined to be a legal instruction. The integrity of the legitimate instruction is verified using a pre-built CRC check algorithm to obtain the instruction to be parsed. The key fields of the instruction to be parsed are parsed using a pre-built Art-Net protocol decoder to obtain the adjustment mode number.

[0030] The Art-Net protocol format refers to a protocol header that includes [start of frame + instruction type + data length + checksum + end of frame].

[0031] The format verification refers to determining whether the protocol header of the remote adjustment command conforms to the Art-Net protocol format.

[0032] The basic verification instruction refers to the remote adjustment instruction that has passed format verification.

[0033] The instruction editing target refers to the indicator that the remote adjustment instruction is expected to edit.

[0034] The list of allowed executable instructions refers to a set of indicators that have been authorized and can be modified by instructions.

[0035] The legality verification refers to the process of determining whether the instruction editing target is in the list of allowed executable instructions.

[0036] The legal instruction refers to the basic verification instruction that has passed the legality verification.

[0037] The CRC check algorithm refers to adding a CRC (Cyclic Redundancy Check) code to the end of the instruction data packet of the remote adjustment command. After receiving the data, the control module recalculates the CRC value and compares it with the sender's check code. If they match, the integrity verification is passed (to avoid data bit flipping due to network interference).

[0038] The integrity verification refers to the execution process of the aforementioned CRC verification algorithm.

[0039] The instruction to be parsed refers to a valid instruction that has passed the integrity check. The Art-Net protocol decoder refers to a device used to decode data transmitted via the Art-Net protocol.

[0040] The key field parsing refers to the process of extracting key information, such as the light scene number, from the decoding results of the Art-Net protocol decoder.

[0041] Specifically, in this embodiment of the invention, the format of the remote adjustment command is first verified by comparing it with the Art-Net protocol format pre-stored in the control module. Once the format verification is successful, the remote adjustment command can be used as the basic verification command. Then, the command editing target of the basic verification command is examined, such as scene adjustment. When the command editing target is detected in the pre-built list of allowed command executions, it indicates that the scene adjustment is authorized; therefore, the basic verification command can be determined to be a legitimate command.

[0042] Then, this invention adds a CRC code to the end of the instruction data packet of the remote adjustment instruction in advance. When the control module receives it, it recalculates the CRC value and compares it with the sender's check code. If they match, the integrity verification is passed and the instruction to be parsed is obtained. Then, the Art-Net protocol decoder strips the redundant information such as the protocol header and check bit from the instruction to be parsed, thereby extracting the core data fields and obtaining the adjustment mode number.

[0043] In detail, in this embodiment of the invention, before utilizing the pre-built local storage unit in the control module, the method further includes: When the control module detects that the pre-built rotary encoder has rotated to the preset scene configuration interface, it automatically generates a scene number to be edited. The system obtains the power module parameter sequence input by the user and sends the power module parameter sequence to the power module cluster to obtain the test AC sequence. The system then uses the light-emitting element device to execute the test AC sequence to obtain the debugging effect light. Obtain the adjustment command input by the user based on the light feedback of the debugging effect, and determine the type of the adjustment command; When the adjustment instruction is a preset modification adjustment type, return to the steps described above for obtaining the power module parameter sequence input by the user; When the adjustment instruction is a preset confirmation adjustment type, the power module parameter sequence is filled into the scene number to be edited to obtain a pre-edited number, and the pre-edited number is saved to the local storage unit pre-built in the control module.

[0044] The rotary encoder refers to a device that allows users to switch data by manually rotating a button.

[0045] The scenario configuration interface refers to the human-computer interaction interface through which users can adjust various power modules.

[0046] The automated generation of scene numbers to be edited refers to the process of automatically encoding and generating scene numbers to be edited using database tools.

[0047] The scene number to be edited refers to a key-value pair consisting of a number automatically generated by the database and a blank value to be filled.

[0048] The power module parameter sequence refers to the parameters of each power module input by the user.

[0049] The test AC current sequence refers to the distribution of the output current of the power module set with respect to the power module parameter sequence.

[0050] The "adjustment effect light" refers to the result of the light-emitting element device executing the test AC current sequence.

[0051] The adjustment instruction refers to the instruction that retains / modifies the power module parameter sequence.

[0052] The adjustment instructions include two types: modification adjustment and confirmation adjustment. The modification adjustment type refers to an instruction that modifies the power module parameter sequence. The confirmation adjustment type refers to an instruction that retains the power module parameter sequence.

[0053] The operation of filling the power module parameter sequence into the scene number to be edited refers to the operation of filling the power module parameter sequence into the position of the value of the scene number to be edited.

[0054] The pre-edited number refers to the scene number to be edited after filling in the power module parameter sequence.

[0055] Specifically, in this embodiment of the invention, the user can manually rotate the rotary encoder to display the pre-built front-end device as a scene configuration interface. In this interface, the user can manually click on each power module to configure specific values ​​for each module, thus obtaining a power module parameter sequence. This power module parameter sequence, after passing through the power module cluster, forms a test AC current sequence. This test AC current sequence can be directly applied to the light-emitting element device to create a debugging effect light.

[0056] Specifically, in this embodiment of the invention, the user can decide to modify or retain the configuration based on the evaluation of the effect of the debugging light in various scenarios. When the user's adjustment instruction is to modify the adjustment type, the specific parameters of each power module can be readjusted in the scenario configuration interface. When the user's adjustment instruction is to confirm the adjustment type, data can be uploaded to the blockchain, and the power module parameter sequence can be directly filled into the scene number to be edited to obtain the pre-edited number. The pre-edited number is then saved to the local storage unit pre-built in the control module.

[0057] Specifically, in this embodiment of the invention, when numerous lighting scenes are already stored in the local storage unit, the user only needs to specify the scene number in the remote adjustment command, and the control module will automatically find the corresponding target scene prediction parameter sequence.

[0058] S2. Using a pre-built DMX512 bus, the preset parameter sequence of the target scenario is sent to a pre-built power module cluster, wherein each power module in the power module cluster is connected to a pre-built three-phase power line based on a preset three-phase power supply balance principle.

[0059] The DMX512 bus refers to the bus that connects the control module and various power modules via the DMX512 protocol. The DMX512 protocol is a digital communication protocol developed by the American Society for Theatre Technology (USITT), primarily used to control stage lighting, sound equipment, LED lights, and other performance and lighting equipment.

[0060] The power module cluster refers to a collection of power modules. Each power module is the core execution unit in the remotely controlled sinusoidal digital micro-break controller system, responsible for receiving control module commands to adjust the light and converting three-phase AC power into sinusoidal AC power that matches the target light.

[0061] The three-phase power supply balance principle refers to the principle that each power module is equally distributed on each phase of the three-phase power line. For example, three power modules are distributed on each phase of the three-phase power line, and the power of each power module is 6kW.

[0062] The three-phase power line refers to the power source that provides three-phase alternating current.

[0063] Specifically, in this embodiment of the invention, the system for implementing the IGBT-based sinusoidal digital micro-interrupt intelligent dimming method has a DMX512 bus, with one side of the DMX512 bus connected to the control module and the other side connected to the power module cluster.

[0064] Specifically, in this embodiment of the invention, after finding the target scenario preset parameter sequence, the location of each power module can be found according to the address on the DMX512 bus, thereby configuring each target scenario preset parameter into each power module.

[0065] In detail, in this embodiment of the invention, the step of sending the target scenario preset parameter sequence to the pre-built power module cluster includes: Obtain the historical illumination parameter sequence, and calculate the difference between the target scene preset parameter sequence and the historical illumination parameter sequence to obtain the illumination intensity change sequence; Determine whether each light intensity change in the light intensity change sequence is greater than a preset dimming value to obtain the dimming mode determination result; Based on the dimming method judgment result and the pre-constructed super S curve, the target scene preset parameter sequence is sent to the pre-constructed power module cluster.

[0066] The historical illumination parameter sequence refers to the parameters of each power module of the light before adjustment.

[0067] The calculation of the difference between the target scene preset parameter sequence and the historical illumination parameter sequence refers to the process of calculating the difference between the target scene preset parameters and the historical illumination parameters for each power module. The illumination intensity change sequence refers to the sequence of differences between the target scene preset parameters and the historical illumination parameters for each power module.

[0068] The dimming value is configured to be 30%.

[0069] The dimming mode judgment result refers to the judgment result of whether the change in light intensity of each power module is greater than 30%.

[0070] The super S-curve refers to an S-shaped curve that represents the mapping relationship between the target brightness and the control signal.

[0071] The mathematical representation of the super S-curve is: When the change in light intensity is less than 30%: ; When the change in light intensity is ≥30%: The reference brightness is the luminous brightness of the light-emitting device when the preset parameters of the target scene are 100%. The power function exponent k represents the convexity of the control curve (k<1 is a convex function, the smaller k is, the steeper the curve). In engineering, k=0.5~0.8 is recommended (adjusted according to the type of lamp, k=0.6 is commonly used for tungsten filament lamps).

[0072] Specifically, in this embodiment of the invention, when the light intensity change is <30%, the super S-curve exhibits a slow upward trend, providing a preheating effect. Conversely, when the light intensity change is ≥30%, the super S-curve exhibits a linear upward trend, avoiding abrupt changes in brightness. In this invention, the low brightness segment (0-30%) shows a concave, slow upward trend (preheating), while the medium-to-high brightness segment (30%-100%) shows a convex, rapid upward trend (consistent with human visual perception), resulting in an overall super S-curve.

[0073] Specifically, in this embodiment of the invention, in order to avoid abrupt changes in brightness, a gradual approach is adopted for light adjustment. Therefore, the difference between the preset parameter sequence of the target scene and the historical illumination parameter sequence is first calculated to obtain the illumination intensity change sequence. Then, based on whether the illumination intensity change sequence is greater than 30%, it is divided into two gradual scenes, thereby realizing the gradual transfer of data.

[0074] S3. Obtain the three-phase AC power of each power module in the power module cluster to obtain an initial three-phase AC power sequence. Using the power module cluster, according to the preset parameter sequence of the target scenario, perform IGBT-based power regulation operation on the initial three-phase AC power sequence to obtain a sinusoidal regulated three-phase AC power sequence.

[0075] The three-phase AC power is 6kW. The initial three-phase AC power sequence is [6kW, 6kW, 6kW, 6kW...].

[0076] The power regulation operation based on IGBT refers to the process of adjusting the power by replacing the thyristor in the traditional power module with an IGBT (Insulated Gate Bipolar Transistor) and using high-frequency chopping dimming.

[0077] The sinusoidal regulated three-phase AC current sequence refers to the set of output currents of the power module cluster for a preset parameter sequence of the target scenario.

[0078] In detail, in this embodiment of the invention, the step of using the power module cluster to perform IGBT-based power regulation on the initial three-phase AC power sequence according to the preset parameter sequence of the target scenario to obtain a sinusoidal regulated three-phase AC power sequence includes: Obtain a power module from the power module cluster to obtain the target power module; The initial three-phase AC current of the target power module is obtained from the initial three-phase AC current sequence to obtain the target AC current; The target AC power is converted into DC power using the pre-built three-phase bridge rectifier circuit in the target power module to obtain target DC power. The target DC power is then smoothed using a pre-built filter capacitor to obtain stable DC power. The target power grid frequency is obtained, and the zero-crossing point of the three-phase power lines is monitored using a pre-built phase-locked loop circuit to obtain a reference synchronization signal that is synchronized with the target power grid frequency. Based on the reference synchronization signal, the pre-built IGBT in the target power module is configured with a time reference to obtain the target IGBT; A high-frequency carrier is acquired, and a PWM modulation signal is acquired based on the high-frequency carrier and the target power grid frequency. The target IGBT is then used to chop the stable DC power according to the PWM modulation signal to obtain the sinusoidal regulated three-phase AC power of the target power module. By summing the sinusoidal regulated three-phase AC currents of each target power module in the power module cluster, a sinusoidal regulated three-phase AC current sequence is obtained.

[0079] The target power module refers to any one of the power modules in the power module cluster.

[0080] The target AC power refers to the initial three-phase AC power of the target power module in the initial three-phase AC power sequence.

[0081] The three-phase bridge rectifier circuit refers to a circuit that can convert three-phase alternating current into direct current.

[0082] The target DC power refers to the rectified target AC power.

[0083] The filter capacitor is an electronic component used to filter out AC ripple components and retain DC components in a circuit.

[0084] The smoothing ripple processing refers to the technical process of reducing or eliminating ripple components in the target DC current through a filter capacitor, thereby making the output current more stable. The stable DC current refers to the result of the smoothing ripple processing of the target DC current.

[0085] The target power grid frequency is configured as 50Hz.

[0086] The phase-locked loop circuit refers to a closed-loop control system that achieves phase synchronization between the output signal and the input signal through phase feedback. This invention is used to keep the switching frequency of the IGBT consistent with the target power grid frequency.

[0087] The zero-crossing point refers to the instant when the voltage or current value of the alternating current (sine wave) crosses 0V from negative to positive (positive zero-crossing point) or from positive to negative (negative zero-crossing point).

[0088] The reference synchronization signal is an electrical signal whose frequency and phase are strictly consistent with those of an external reference source (such as a power grid or clock signal). It is used to provide a unified time reference for the system and ensure that all modules work together.

[0089] The time reference configuration refers to the process of synchronizing the switching frequency of the IGBT with the reference synchronization signal. The target IGBT refers to the IGBT that has undergone time reference configuration.

[0090] The high-frequency carrier is configured to be 50kHz.

[0091] The operation of obtaining the PWM modulation signal based on the high-frequency carrier and the target power grid frequency refers to the following: the control module compares the "50Hz target power grid frequency" with the "50kHz high-frequency carrier": when the 50Hz target power grid frequency > the 50kHz high-frequency carrier, the IGBT is turned on (outputs DC bus voltage); when the 50Hz target power grid frequency < the 50kHz high-frequency carrier, the IGBT is turned off, thereby forming the PWM modulation signal.

[0092] The PWM modulation signal is a digital signal that transmits information or controls the output by changing the width (on-time) of the pulse signal.

[0093] The chopping operation refers to using the target IGBT as a high-speed switching device to periodically "turn on and off" the stable DC power according to the PWM modulation signal, cutting it into a series of square wave pulse sequences with pulse widths varying over time, so that the average value of the output pulses is equivalent to the voltage change law of the target sinusoidal AC power, and finally a smooth sinusoidal AC power is obtained after filtering.

[0094] The sinusoidal regulated three-phase AC power refers to the chopping operation result of stable DC power.

[0095] Specifically, in this embodiment of the invention, a single power module is taken as an example. First, the target power module is obtained, and then the target AC power corresponding to the target power module is obtained. To achieve power adjustment, the three-phase AC power is first converted to DC power to obtain the target DC power. Then, to obtain a more stable signal, a filter capacitor is used to smooth the ripple of the target DC power to obtain a stable DC power. The invention first obtains the frequency of the three-phase power lines to obtain the target grid frequency, for example, 50Hz. Then, a phase-locked loop circuit is used to monitor the zero-crossing points of the three-phase power lines to obtain a reference synchronization signal synchronized with the target grid frequency. This reference synchronization signal is then configured onto the IGBT to obtain the target IGBT.

[0096] Specifically, in this embodiment of the invention, a 50kHz high-frequency carrier was selected, which is exactly 1000 times the target power grid frequency. By comparing the high-frequency carrier and the target power grid frequency, a PWM modulation signal can be obtained. Then, based on the target IGBT and the PWM modulation signal, the stable DC power is chopped to obtain the sinusoidal regulated three-phase AC power of the target power module. Finally, the results are summarized to obtain the sinusoidal regulated three-phase AC power sequence.

[0097] S4. The sinusoidal regulated three-phase AC power sequence is sent to the pre-constructed light-emitting element device to obtain the target intensity light.

[0098] The light-emitting element device refers to a device that converts electrical energy into light energy, and has multiple light-emitting units, with each power module capable of controlling one or a portion of the light-emitting units.

[0099] The target intensity light refers to the light generated after a sinusoidal regulated three-phase alternating current sequence passes through a light-emitting element device.

[0100] In detail, in this embodiment of the invention, sending the sinusoidal regulated three-phase alternating current sequence to a pre-constructed light-emitting element device to obtain target intensity light includes: Acquire images of the light intensity and environment at the location of the light-emitting element device; The illumination intensity is quantized to obtain an illumination vector, and the environmental image is feature extracted to obtain environmental features; Using a pre-trained adaptive lighting adjustment model, the sinusoidal three-phase AC power sequence is adjusted based on light intensity and color temperature according to the illumination vector and environmental characteristics to obtain an adaptive AC power sequence. The adaptive AC power sequence is then sent to a pre-built light-emitting element device to obtain the target intensity light.

[0101] The light intensity refers to the data obtained through a photosensitive sensor. The environmental image refers to an image of the vicinity of the location of the light-emitting element device, obtained through a camera device.

[0102] Here, quantization refers to converting light intensity from a digital representation into a machine-readable code. The light vector refers to the quantized result of the light intensity.

[0103] Feature extraction refers to the process of extracting key features from environmental images using a neural network. Environmental features refer to the feature extraction results of the environmental images, such as scene and pedestrian density.

[0104] The aforementioned adaptive lighting adjustment model refers to a neural network model that adaptively adjusts light intensity based on brightness and scene. It can be trained by constructing training samples that adjust brightness.

[0105] The adjustment operation based on light intensity and color temperature refers to the operation of adjusting the two parameters of light intensity and color temperature during the execution of the lighting adaptive adjustment model.

[0106] The adaptive AC sequence refers to a sinusoidal regulated three-phase AC sequence adjusted by light intensity and color temperature parameters.

[0107] Specifically, in this embodiment of the invention, the sinusoidal regulated three-phase AC power sequence can be directly sent to a pre-constructed light-emitting element device to obtain light of the target intensity.

[0108] Specifically, in another embodiment of the present invention, when adjusting lighting fixtures on a large scale, such as simultaneously adjusting streetlights throughout a city, the brightness of streetlights can be reduced in areas with sufficient light and in areas with sparse pedestrian traffic, based on the lighting adaptive adjustment model, thereby achieving adaptive adjustment of lighting.

[0109] S5. Using a pre-built temperature sensor, acquire the temperature information of the pre-built IGBTs in each power module of the power module cluster, obtain a temperature information sequence, and send the temperature information sequence to the control module using the DMX512 bus. Also, using a pre-built current sensor, feed back the sinusoidal regulated three-phase AC current sequence to the control module through the DMX512 bus.

[0110] The temperature sensor refers to a sensor device that can sense the ambient temperature.

[0111] The temperature information sequence refers to the set of temperatures of each IGBT.

[0112] The current sensor refers to a sensor device that can monitor the output current of the power module.

[0113] Specifically, in this embodiment of the invention, the temperature sensor is integrated into each power module, thereby enabling monitoring of the temperature information of the IGBTs within each power module to obtain a temperature information sequence. To avoid overheating caused by prolonged high-frequency switching of the IGBTs, this invention requires monitoring of the temperature information sequence. This monitoring is specifically located in the control module; therefore, the temperature information sequence can be sent to the control module using the DMX512 bus.

[0114] Furthermore, if a problem with the light-emitting device may cause a short circuit in the entire circuit, the sinusoidal regulated three-phase AC power sequence can be fed back to the control module through the DMX512 bus to monitor the temperature and simultaneously monitor the current of each power module.

[0115] S6. Using the control module and the preset protection strategy, the power module cluster is protectively adjusted according to the temperature information sequence and the sinusoidal three-phase AC power sequence to obtain an updated sinusoidal three-phase AC power sequence, and the updated sinusoidal three-phase AC power sequence is sent to the light-emitting element device to obtain an updated target intensity light.

[0116] The protection strategy refers to a set of circuit protection measures taken for different situations.

[0117] The protective adjustment refers to the process of protecting the overall circuit by modifying the circuit structure.

[0118] The updated sinusoidal three-phase AC power sequence refers to the AC power generated by the power module set after protective adjustment.

[0119] The updated target intensity light refers to the light generated by the updated sinusoidal three-phase alternating current sequence through the light-emitting element device.

[0120] In detail, in this embodiment of the invention, the step of using the control module and a preset protection strategy to perform protective adjustments on the power module cluster based on the temperature information sequence and the sinusoidal three-phase AC power sequence to obtain an updated sinusoidal three-phase AC power sequence includes: Using the control module, it is determined whether there is temperature information in the temperature information sequence that is greater than a preset temperature threshold, and whether there is a regulated three-phase AC current in the sinusoidal regulated three-phase AC current sequence that is greater than a preset current threshold. The power module whose temperature information exceeds the temperature threshold is classified as a preset overheating type, and the power module whose current information exceeds the current threshold for regulating three-phase AC power is classified as a preset overcurrent type. Obtain each power module of the overheating type to obtain an overheating power module cluster; obtain each power module of the overcurrent type to obtain an overcurrent power module cluster. According to the protection strategy, the circuit connection of the overheated power module cluster and the overcurrent power module cluster in the power module cluster is adjusted to obtain a replacement and updated power module cluster. Based on the replacement and update of the power module cluster, obtain the updated sinusoidal three-phase AC power sequence.

[0121] The temperature threshold is configured to be 60°C.

[0122] The current threshold is configured to be the current that does not exceed the rated operating power (6kW).

[0123] The overheating type refers to the module type where the temperature information of the power module is greater than the temperature threshold.

[0124] The overcurrent type refers to the module type where the power module regulates the three-phase AC current to be greater than the current threshold.

[0125] The overheating power module cluster refers to a collection of power modules of various overheating types.

[0126] The overcurrent power module cluster refers to a collection of power modules of various overcurrent types.

[0127] The circuit access adjustment refers to the process of adjusting the access status of each power module according to the protection strategy.

[0128] The replacement and update of the power module cluster refers to the power module cluster after the circuit access adjustment.

[0129] Specifically, in this embodiment of the invention, the configured protection strategy has two aspects: temperature protection and current protection. Therefore, it is necessary to determine whether each temperature information is greater than a preset temperature threshold, and to determine whether there is a regulated three-phase AC current greater than a preset current threshold in the sinusoidal regulated three-phase AC current sequence.

[0130] This invention determines that power modules with temperature information exceeding the temperature threshold are of a preset overheat type, and power modules regulating three-phase AC power exceeding the current threshold are of a preset overcurrent type. Therefore, based on the overheat and overcurrent types, overheat power module clusters and overcurrent power module clusters are found. This invention obtains a replacement and update power module cluster by adjusting the circuit access of the overheat and overcurrent power module clusters in the power module clusters, thereby obtaining an updated sinusoidal three-phase AC power sequence.

[0131] In detail, in this embodiment of the invention, the step of adjusting the circuit connections of the overheated power module cluster and the overcurrent power module cluster in the power module cluster according to the protection strategy to obtain a replacement and updated power module cluster includes: According to the protection strategy, the overheated power module cluster is replaced by the backup power module cluster pre-built on the DMX512 bus to obtain a replacement module cluster. Using the DMX512 bus, the overcurrent power module cluster in the replacement module cluster is disconnected to obtain a replacement and updated power module cluster.

[0132] The backup power module cluster refers to some power modules outside of the power module cluster.

[0133] The replacement access refers to the process of configuring the parameters in the overheated power module cluster to the replaceable backup power module, disconnecting the overheated power module cluster, and connecting the backup power module cluster to the DMX512 bus.

[0134] The disconnection operation refers to the process of interrupting the data connection between the DMX512 bus and the overcurrent power module cluster.

[0135] Specifically, in this embodiment of the invention, the power module is pluggable on the DMX512 bus. Under normal circumstances, additional power modules can be plugged in as a backup power module cluster. When some power modules overheat, the backup power modules can be switched to achieve the same effect.

[0136] Specifically, in this embodiment of the invention, if the current of the power module is too high, it may indicate that the light-emitting device is about to malfunction. Once the light-emitting device malfunctions, it may cause damage to the entire circuit. Therefore, this invention directly disconnects the overcurrent power module cluster to ensure the safety of the entire circuit.

[0137] In detail, in this embodiment of the invention, after adjusting the circuit connections of the overheated power module cluster and the overcurrent power module cluster in the power module cluster according to the protection strategy to obtain a replacement and updated power module cluster, the method further includes: Obtain the protection adjustment logs based on the replacement and update of the power module cluster; According to the Art-Net protocol format, the protection adjustment log is uploaded to the pre-built cloud service device; Using the cloud service device, the protection adjustment log is identified based on the overcurrent power module cluster to obtain fault module information; Query the repair department information corresponding to the faulty module information; Based on the maintenance department information, the fault module information is sent to the pre-built maintenance center.

[0138] The protection adjustment log refers to the change log of the replacement and update power module cluster.

[0139] The cloud service equipment refers to equipment whose servers are built in the cloud.

[0140] The identification operation based on the overcurrent power module cluster refers to the process of identifying information related to the overcurrent power module cluster in the protection adjustment log. The fault module information refers to the result of the identification operation based on the overcurrent power module cluster performed on the protection adjustment log.

[0141] The maintenance department information refers to the specific personnel responsible for the maintenance of each lamp.

[0142] The maintenance center refers to the department responsible for the specific maintenance of the lighting fixtures.

[0143] Specifically, in this embodiment of the invention, to improve the traceability of lighting management, a protection adjustment log needs to be constructed. To improve convenience and data security, the present invention uploads the protection adjustment log to a pre-built cloud service device according to the Art-Net protocol format. The overcurrent power module cluster indicates that the light-emitting device is at risk of damage, resulting in a high overall circuit loss. Therefore, timely maintenance is required. Thus, the overcurrent power module cluster can be identified through a database or neural network deployed in the cloud service device to obtain fault module information, thereby querying the corresponding maintenance department information and realizing timely repair of damaged lamps.

[0144] To address the problems described in the background section, this invention first receives remote adjustment commands via a wireless device, then parses these commands to obtain a preset parameter sequence for the target scene. This sequence is then transmitted to the power module cluster via a DMX512 bus, enabling numerical adjustment of the power module cluster. The power module cluster employs IGBT-based power adjustment, using high-frequency chopping dimming to improve adjustment accuracy and avoid flickering, thus enhancing the control effect. Furthermore, this invention incorporates protection strategies, allowing for timely switching of power modules during lighting adjustments to prevent damage to the light-emitting devices. Disconnecting power modules also prevents damage to the entire circuit from damaged light-emitting devices. This protection not only safeguards the circuit but also allows for timely detection of damaged light-emitting devices, improving system maintenance efficiency. Therefore, this invention improves the accuracy of lighting brightness adjustment under remote control.

[0145] like Figure 2 The diagram shown is a functional block diagram of a sinusoidal digital micro-break intelligent dimming system based on IGBT provided in an embodiment of the present invention.

[0146] The IGBT-based sinusoidal digital micro-interrupt intelligent dimming system 100 of this invention can be installed in electronic devices. Depending on the functions implemented, the IGBT-based sinusoidal digital micro-interrupt intelligent dimming system 100 may include a dimming start-up module 101, a dimming module 102, a monitoring module 103, and a feedback adjustment module 104. The module described in this invention can also be called a unit, referring to a series of computer program segments that can be executed by the processor of an electronic device and perform a fixed function, stored in the memory of the electronic device.

[0147] The dimming start module 101 is used to, when receiving a pre-built remote adjustment command, use a pre-built control module to parse the remote adjustment command to obtain the adjustment mode number, and use a pre-built local storage unit in the control module to query the adjustment mode number to obtain the target scene preset parameter sequence. The dimming module 102 is used to send the target scene preset parameter sequence to the pre-built power module cluster using a pre-built DMX512 bus. Each power module in the power module cluster is connected to the pre-built three-phase power line based on a preset three-phase power supply balance principle. The module obtains the three-phase AC power of each power module in the power module cluster to get an initial three-phase AC power sequence. Using the power module cluster, the module performs IGBT-based power adjustment operation on the initial three-phase AC power sequence according to the target scene preset parameter sequence to get a sinusoidal adjusted three-phase AC power sequence. The monitoring module 103 is used to send the sinusoidal regulated three-phase AC power sequence to the pre-built light-emitting element device to obtain the target intensity light, and to use the pre-built temperature sensor to obtain the temperature information of the pre-built IGBTs in each power module of the power module cluster to obtain the temperature information sequence, and to use the DMX512 bus to send the temperature information sequence to the control module, and to use the pre-built current sensor to feed back the sinusoidal regulated three-phase AC power sequence to the control module through the DMX512 bus; The feedback adjustment module 104 is used to perform protective adjustments on the power module cluster based on the temperature information sequence and the sinusoidal three-phase AC power sequence using the control module and the preset protection strategy, to obtain an updated sinusoidal three-phase AC power sequence, and to send the updated sinusoidal three-phase AC power sequence to the light-emitting element device to obtain an updated target intensity light.

[0148] In detail, the modules in the IGBT-based sinusoidal digital micro-interrupt intelligent dimming system 100 described in this embodiment of the invention employ the same methods as described above during use. Figure 1The method uses the same technical means as the IGBT-based sinusoidal digital micro-interrupt intelligent dimming method described above, and can produce the same technical effect, so it will not be repeated here.

[0149] like Figure 3 The diagram shown is a structural schematic of an electronic device that implements a sinusoidal digital micro-interrupt intelligent dimming method based on IGBT, according to an embodiment of the present invention.

[0150] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and capable of running on the processor 10, such as a program for a sinusoidal digital micro-interrupt intelligent dimming method based on IGBT.

[0151] The memory 11 includes at least one type of readable storage medium, such as flash memory, portable hard drive, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as a portable hard drive. In other embodiments, the memory 11 can be an external storage device of the electronic device 1, such as a plug-in portable hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the electronic device 1. Furthermore, the memory 11 includes both internal storage units and external storage devices of the electronic device 1. The memory 11 can be used not only to store application software and various types of data installed on the electronic device 1, such as the code of a sine wave digital micro-interrupt intelligent dimming method program based on IGBT, but also to temporarily store data that has been output or will be output.

[0152] In some embodiments, the processor 10 may be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor 10 is the control unit of the electronic device, connecting various components of the entire electronic device through various interfaces and lines. It executes programs or modules stored in the memory 11 (e.g., a sine wave digital micro-interrupt intelligent dimming method program based on IGBTs), and calls data stored in the memory 11 to perform various functions of the electronic device 1 and process data.

[0153] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0154] Figure 3 Only electronic devices with components are shown; those skilled in the art will understand that... Figure 3 The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0155] For example, although not shown, the electronic device 1 may also include a power supply (such as a battery) to power the various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, thereby enabling functions such as charging management, discharging management, and power consumption management. The power supply may also include one or more DC or AC power supplies, recharging devices, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be described in detail here.

[0156] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a Wi-Fi interface, a Bluetooth interface, etc.), which is typically used to establish communication connections between the electronic device 1 and other electronic devices.

[0157] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), and optionally, a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen, etc. The display may also be appropriately referred to as a screen or display unit, used to display information processed in the electronic device 1 and to display a visual user interface.

[0158] The program for the IGBT-based sinusoidal digital micro-interrupt intelligent dimming method stored in the memory 11 of the electronic device 1 is a combination of multiple instructions. When run in the processor 10, it can achieve the following: When a pre-built remote adjustment command is received, the pre-built control module is used to parse the remote adjustment command to obtain the adjustment mode number, and the pre-built local storage unit in the control module is used to query the adjustment mode number to obtain the target scene preset parameter sequence. Using a pre-built DMX512 bus, the preset parameter sequence of the target scenario is sent to a pre-built power module cluster, wherein each power module in the power module cluster is connected to a pre-built three-phase power line based on a preset three-phase power supply balance principle. The three-phase AC power of each power module in the power module cluster is obtained to obtain an initial three-phase AC power sequence. Using the power module cluster, according to the preset parameter sequence of the target scenario, the initial three-phase AC power sequence is subjected to IGBT-based power regulation operation to obtain a sinusoidal regulated three-phase AC power sequence. The sinusoidal regulated three-phase AC power sequence is sent to a pre-constructed light-emitting element device to obtain light of the target intensity. Using a pre-built temperature sensor, the temperature information of the pre-built IGBTs in each power module of the power module cluster is obtained to obtain a temperature information sequence. The temperature information sequence is then sent to the control module via the DMX512 bus. Additionally, using a pre-built current sensor, the sinusoidal regulated three-phase AC current sequence is fed back to the control module via the DMX512 bus. Using the control module and the preset protection strategy, the power module cluster is protectively adjusted according to the temperature information sequence and the sinusoidal three-phase AC power sequence to obtain an updated sinusoidal three-phase AC power sequence, and the updated sinusoidal three-phase AC power sequence is sent to the light-emitting element device to obtain an updated target intensity light.

[0159] Specifically, the processor 10's implementation method for the above instructions can be found in [reference needed]. Figures 1 to 3 The descriptions of the relevant steps in the corresponding embodiments are not repeated here.

[0160] Furthermore, if the modules / units integrated in the electronic device 1 are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0161] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor of an electronic device, can perform the following: When a pre-built remote adjustment command is received, the pre-built control module is used to parse the remote adjustment command to obtain the adjustment mode number, and the pre-built local storage unit in the control module is used to query the adjustment mode number to obtain the target scene preset parameter sequence. Using a pre-built DMX512 bus, the preset parameter sequence of the target scenario is sent to a pre-built power module cluster, wherein each power module in the power module cluster is connected to a pre-built three-phase power line based on a preset three-phase power supply balance principle. The three-phase AC power of each power module in the power module cluster is obtained to obtain an initial three-phase AC power sequence. Using the power module cluster, according to the preset parameter sequence of the target scenario, the initial three-phase AC power sequence is subjected to IGBT-based power regulation operation to obtain a sinusoidal regulated three-phase AC power sequence. The sinusoidal regulated three-phase AC power sequence is sent to a pre-constructed light-emitting element device to obtain light of the target intensity. Using a pre-built temperature sensor, the temperature information of the pre-built IGBTs in each power module of the power module cluster is obtained to obtain a temperature information sequence. The temperature information sequence is then sent to the control module via the DMX512 bus. Additionally, using a pre-built current sensor, the sinusoidal regulated three-phase AC current sequence is fed back to the control module via the DMX512 bus. Using the control module and the preset protection strategy, the power module cluster is protectively adjusted according to the temperature information sequence and the sinusoidal three-phase AC power sequence to obtain an updated sinusoidal three-phase AC power sequence, and the updated sinusoidal three-phase AC power sequence is sent to the light-emitting element device to obtain an updated target intensity light.

[0162] In the embodiments provided by this invention, it should be understood that the disclosed devices, systems, and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative, and actual implementations may have other classification methods.

[0163] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0164] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional modules.

[0165] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0166] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A sinusoidal digital micro-interrupt intelligent dimming method based on IGBT, characterized in that, The method includes: When a pre-built remote adjustment command is received, the pre-built control module is used to parse the remote adjustment command to obtain the adjustment mode number, and the pre-built local storage unit in the control module is used to query the adjustment mode number to obtain the target scene preset parameter sequence. Using a pre-built DMX512 bus, the preset parameter sequence of the target scenario is sent to a pre-built power module cluster, wherein each power module in the power module cluster is connected to a pre-built three-phase power line based on a preset three-phase power supply balance principle. Obtain the three-phase AC power of each power module in the power module cluster to obtain an initial three-phase AC power sequence, and obtain a power module from the power module cluster to obtain the target power module; The initial three-phase AC current of the target power module is obtained from the initial three-phase AC current sequence to obtain the target AC current; The target AC power is converted into DC power using the pre-built three-phase bridge rectifier circuit in the target power module to obtain target DC power. The target DC power is then smoothed using a pre-built filter capacitor to obtain stable DC power. The target power grid frequency is obtained, and the zero-crossing point of the three-phase power lines is monitored using a pre-built phase-locked loop circuit to obtain a reference synchronization signal that is synchronized with the target power grid frequency. Based on the reference synchronization signal, the pre-built IGBT in the target power module is configured with a time reference to obtain the target IGBT; A high-frequency carrier is acquired, and a PWM modulation signal is acquired based on the high-frequency carrier and the target power grid frequency. The target IGBT is then used to chop the stable DC power according to the PWM modulation signal to obtain the sinusoidal regulated three-phase AC power of the target power module. By summing the sinusoidal regulated three-phase AC current of each target power module in the power module cluster, a sinusoidal regulated three-phase AC current sequence is obtained. The sinusoidal regulated three-phase AC power sequence is sent to a pre-constructed light-emitting element device to obtain light of the target intensity. Using a pre-built temperature sensor, the temperature information of the pre-built IGBTs in each power module of the power module cluster is obtained to obtain a temperature information sequence. The temperature information sequence is then sent to the control module via the DMX512 bus. Additionally, using a pre-built current sensor, the sinusoidal regulated three-phase AC current sequence is fed back to the control module via the DMX512 bus. Using the control module, it is determined whether there is temperature information in the temperature information sequence that is greater than a preset temperature threshold, and whether there is a regulated three-phase AC current in the sinusoidal regulated three-phase AC current sequence that is greater than a preset current threshold. The power module whose temperature information exceeds the temperature threshold is classified as a preset overheating type, and the power module whose current information exceeds the current threshold for regulating three-phase AC power is classified as a preset overcurrent type. Obtain each power module of the overheating type to obtain an overheating power module cluster; obtain each power module of the overcurrent type to obtain an overcurrent power module cluster. According to the protection strategy, the circuit connection of the overheated power module cluster and the overcurrent power module cluster in the power module cluster is adjusted to obtain a replacement and updated power module cluster. According to the replacement and update power module cluster, the updated sinusoidal three-phase AC power sequence is obtained and sent to the light-emitting element device to obtain the updated target intensity light.

2. The intelligent dimming method based on IGBT sinusoidal digital micro-interrupts as described in claim 1, characterized in that, The process of parsing the remote adjustment command using a pre-built control module to obtain the adjustment mode number includes: Using a pre-built control module, the remote adjustment command is format-verified according to the pre-built Art-Net protocol format to obtain the basic verification command; Obtain the instruction editing target of the basic verification instruction, and use a pre-built list of allowed executable instructions to perform legality verification on the instruction editing target. When the legality of the instruction editing target is passed, the basic verification instruction is determined to be a legal instruction. The integrity of the legitimate instruction is verified using a pre-built CRC check algorithm to obtain the instruction to be parsed. The key fields of the instruction to be parsed are parsed using a pre-built Art-Net protocol decoder to obtain the adjustment mode number.

3. The intelligent dimming method based on IGBT sinusoidal digital micro-interrupts as described in claim 2, characterized in that, Before utilizing the pre-built local storage unit in the control module, the method further includes: When the control module detects that the pre-built rotary encoder has rotated to the preset scene configuration interface, it automatically generates a scene number to be edited. The system obtains the power module parameter sequence input by the user and sends the power module parameter sequence to the power module cluster to obtain the test AC sequence. The system then uses the light-emitting element device to execute the test AC sequence to obtain the debugging effect light. Obtain the adjustment command input by the user based on the light feedback of the debugging effect, and determine the type of the adjustment command; When the adjustment instruction is a preset modification adjustment type, return to the steps described above for obtaining the power module parameter sequence input by the user; When the adjustment instruction is a preset confirmation adjustment type, the power module parameter sequence is filled into the scene number to be edited to obtain a pre-edited number, and the pre-edited number is saved to the local storage unit pre-built in the control module.

4. The intelligent dimming method based on IGBT sinusoidal digital micro-interrupts as described in claim 3, characterized in that, The step of sending the preset parameter sequence of the target scenario to the pre-built power module cluster includes: Obtain the historical illumination parameter sequence, and calculate the difference between the target scene preset parameter sequence and the historical illumination parameter sequence to obtain the illumination intensity change sequence; Determine whether each light intensity change in the light intensity change sequence is greater than a preset dimming value to obtain the dimming mode determination result; Based on the dimming method judgment result and the pre-constructed super S curve, the target scene preset parameter sequence is sent to the pre-constructed power module cluster.

5. The intelligent dimming method based on IGBT sinusoidal digital micro-interrupts as described in claim 4, characterized in that, The step of sending the sinusoidally regulated three-phase alternating current sequence to a pre-constructed light-emitting element device to obtain target intensity light includes: Acquire images of the light intensity and environment at the location of the light-emitting element device; The illumination intensity is quantized to obtain an illumination vector, and the environmental image is feature extracted to obtain environmental features; Using a pre-trained adaptive lighting adjustment model, the sinusoidal three-phase AC power sequence is adjusted based on light intensity and color temperature according to the illumination vector and environmental characteristics to obtain an adaptive AC power sequence. The adaptive AC power sequence is then sent to a pre-built light-emitting element device to obtain the target intensity light.

6. The intelligent dimming method based on IGBT sinusoidal digital micro-interrupts as described in claim 5, characterized in that, The step of adjusting the circuit connections of the overheated power module cluster and the overcurrent power module cluster in the power module cluster according to the protection strategy to obtain a replacement and updated power module cluster includes: According to the protection strategy, the overheated power module cluster is replaced by the backup power module cluster pre-built on the DMX512 bus to obtain a replacement module cluster. Using the DMX512 bus, the overcurrent power module cluster in the replacement module cluster is disconnected to obtain a replacement and updated power module cluster.

7. The intelligent dimming method based on IGBT sinusoidal digital micro-interrupts as described in claim 6, characterized in that, After adjusting the circuit connections of the overheated power module cluster and the overcurrent power module cluster in the power module cluster according to the protection strategy to obtain a replacement and updated power module cluster, the method further includes: Obtain the protection adjustment logs based on the replacement and update of the power module cluster; According to the Art-Net protocol format, the protection adjustment log is uploaded to the pre-built cloud service device; Using the cloud service device, the protection adjustment log is identified based on the overcurrent power module cluster to obtain fault module information; Query the repair department information corresponding to the faulty module information; Based on the maintenance department information, the fault module information is sent to the pre-built maintenance center.

8. A sinusoidal digital micro-interrupt intelligent dimming system based on IGBT, used to execute the sinusoidal digital micro-interrupt intelligent dimming method based on IGBT as described in claim 1, characterized in that, The system includes: The dimming activation module is used to parse the pre-built remote adjustment command when it receives a pre-built remote adjustment command, obtain the adjustment mode number, and use the pre-built local storage unit in the control module to query the adjustment mode number to obtain the target scene preset parameter sequence. A dimming module is used to send the target scene preset parameter sequence to a pre-built power module cluster using a pre-built DMX512 bus. Each power module in the power module cluster is connected to a pre-built three-phase power line based on a preset three-phase power supply balance principle. The module obtains the three-phase AC power of each power module in the power module cluster to get an initial three-phase AC power sequence. Using the power module cluster, the module performs IGBT-based power adjustment on the initial three-phase AC power sequence according to the target scene preset parameter sequence to get a sinusoidal adjusted three-phase AC power sequence. The monitoring module is used to send the sinusoidal regulated three-phase AC power sequence to the pre-built light-emitting element device to obtain the target intensity light, and to use the pre-built temperature sensor to obtain the temperature information of the pre-built IGBTs in each power module of the power module cluster to obtain the temperature information sequence, and to use the DMX512 bus to send the temperature information sequence to the control module, and to use the pre-built current sensor to feed back the sinusoidal regulated three-phase AC power sequence to the control module through the DMX512 bus; The feedback adjustment module is used to perform protective adjustments on the power module cluster based on the temperature information sequence and the sinusoidal three-phase AC power sequence using the control module and the preset protection strategy, to obtain an updated sinusoidal three-phase AC power sequence, and to send the updated sinusoidal three-phase AC power sequence to the light-emitting element device to obtain an updated target intensity light.

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