Feedback digital control method based on LED driving power supply

Abstract

The invention discloses a feedback digital control method based on an LED driving power supply, and relates to the field of driving management, and the method comprises the following steps: inputting building information, and setting a driving management space according to the building information; acquiring LED equipment information in the driving management space, and setting a driving management node and an equipment node according to the LED equipment information; a time sequence control storage partition and a time sequence feedback storage partition are arranged in the driving management node and are respectively used for storing a control signal and a feedback signal, and a time sequence deviation value of the LED equipment at the current moment is obtained; setting a transmission protocol according to the time sequence deviation value, obtaining real-time state data of the LED equipment, processing the real-time state data according to the transmission protocol, and generating a feedback signal for transmission; analyzing and processing the obtained feedback signal according to the time sequence deviation value of the LED equipment, obtaining corresponding deviation characteristic data, and generating intelligent adjustment information for the abnormal LED equipment; the accuracy of the data feedback process is improved.

Description

Technical Field

[0001] The invention relates to the field of drive management, and in particular to a feedback digital control method based on an LED drive power supply. Background Art

[0002] With the continuous development of LED technology, the efficiency, brightness, color temperature characteristics and other indicators of LED driver power have been greatly improved, and it has gradually become a mainstream product in the lighting market. Traditional LED driver power supplies usually work in a constant current or constant voltage mode, which cannot automatically adjust to different load conditions and environmental conditions, resulting in a great impact on the use effect and service life of LED lamps, and cannot meet people's needs for energy saving and environmental protection, personalized design, intelligent control, etc.

[0003] A digital control method for an electrolytic capacitor-free LED driver power supply with publication number CN110536516B discloses a digital control method for an electrolytic capacitor-free LED driver power supply. The digital controller realizes high power factor and constant current output by collecting the output voltage of the PFC circuit and the LED load current and performing weighted feedback. The timing and duty cycle of the driving signal required by the switch tube of the half-bridge resonant circuit are determined by collecting the output voltage of the rectifier circuit and the LED load power. When the instantaneous value of the PFC output voltage increases, the working duty cycle of the switch tube increases. When the instantaneous value of the PFC circuit output voltage decreases, the working duty cycle of the switch tube decreases, so that the working duty cycle of the switch tube of the half-bridge resonant circuit can automatically follow the instantaneous value change of the PFC output voltage, thereby effectively suppressing the low-frequency ripple of the output voltage of the PFC circuit, reducing the capacity of the energy storage capacitor at the output end of the PFC circuit, and using film capacitors instead of electrolytic capacitors to achieve electrolytic capacitor-free.

[0004] However, there are currently multiple LED devices in buildings. During the feedback digital control of the LED devices, interference between different LED devices may occur due to data interference. In addition, there may be timing deviations between the LED devices and the corresponding microcontrollers, and the timing deviations are different, causing interference in the intelligent control process. Therefore, how to improve the accuracy of the feedback digital control process of the LED devices and reduce the interference of other factors is a problem we need to solve. To this end, a feedback digital control method based on an LED driver power supply is provided. Summary of the invention

[0005] In order to solve the above technical problems, an object of the present invention is to provide a feedback digital control method based on an LED driving power supply.

[0006] The object of the present invention can be achieved by the following technical solution: A feedback digital control method based on an LED driving power supply comprises the following steps:

[0007] Step S1: Setting up a drive management platform, inputting building information, setting up a drive management space according to the acquired building information, and using the drive management space to control and manage LED devices in the corresponding building;

[0008] Step S2: obtaining LED device information in the corresponding driver management space, setting driver management nodes and device nodes according to the LED device information, and setting a driver topology network structure according to their distribution;

[0009] Step S3: setting a timing control storage partition and a timing feedback storage partition in the drive management node, respectively for storing control signals and feedback signals, analyzing and processing them, and obtaining the timing deviation value of the LED device at the current moment;

[0010] Step S4: setting the transmission protocol between the device node and the drive management node according to the drive topology network structure and the current timing deviation value, obtaining the current real-time status data of the LED device and the intelligent adjustment information in the drive management node, and processing them according to the transmission protocol to generate feedback signals and control signals for transmission;

[0011] Step S5: Analyze and process the obtained real-time status data and the corresponding intelligent adjustment information according to the timing deviation value of the LED device, obtain the corresponding deviation characteristic data, and determine whether there is an abnormality according to the deviation characteristic data. If there is an abnormality, regenerate the intelligent adjustment information.

[0012] Furthermore, the process of setting up the driver management platform and the corresponding driver management space includes:

[0013] A drive management platform is provided, wherein an information entry window is provided in the drive management platform, wherein the information entry window is used to enter building information, wherein the building information includes building registration information and LED device information; the LED device information includes building LED device layout information, power supply electrical connection information and LED device parameter information;

[0014] The driver management platform verifies the acquired building information, and determines whether to generate a driver storage space according to the verification result. If the verification is successful, a driver storage space is generated to store and manage the entered building information.

[0015] Furthermore, the process of setting the driving topology network structure includes:

[0016] Acquire the LED device information stored in the driver management space, set the LED device basic distribution image of the driver management space according to the building LED device layout information therein, mark the location of the corresponding LED device in the LED device basic distribution image, and set it as a device node;

[0017] The power electrical connection information includes the distribution of microcontrollers that perform analysis and processing during the operation of corresponding LED devices in the building. The corresponding positions of the microcontrollers are set as drive management nodes, and the corresponding device nodes and drive management nodes are connected based on the power electrical connection information to generate a drive topology network structure.

[0018] Furthermore, the process of setting the current timing deviation value of the LED device includes:

[0019] The device nodes and the driver management nodes interconnected in the driver topology network structure are marked as driver corresponding groups, wherein the driver management node is provided with a timing control storage partition and a timing feedback storage partition, wherein the timing feedback storage partition is used to store feedback signals obtained in the LED device according to a time sequence; and the timing control storage partition is used to store corresponding control signals according to a time sequence;

[0020] Preset a data processing cycle, and generate different types of operation change curves and standard change curves according to the feedback signal and the control signal according to the time series and the LED device parameter information according to the data processing cycle; set a cycle set, the cycle set includes multiple data processing cycles, and obtain the spectrum information of different curves at the same element position based on Fourier transform of the operation change curve and the standard change curve corresponding to each data processing cycle in the cycle set, and generate the phase deviation data corresponding to the same element position according to the obtained spectrum information;

[0021] The phase deviation data at each element position in the cycle period set is obtained, and analysis and processing are performed according to the phase deviation data at each element position, and the timing deviation value at the current moment is obtained according to the processing result.

[0022] Furthermore, the process of setting the transmission protocol between the device node and the driver management node according to the driver topology network structure and the timing deviation value at the current moment includes:

[0023] Obtain the number of drive corresponding groups in the drive topology network structure, set node codes for device nodes and drive management nodes in each drive corresponding group; obtain the timing deviation value corresponding to the current data processing cycle of the LED device, and scramble the obtained node code according to the timing deviation value; perform mixed operation on the scrambled code nodes according to their positions, obtain the mixed operation result of the drive corresponding group, multiply the timing deviation value according to the mixed operation result, generate a key start identifier according to the product result, select the scrambled node code in the drive corresponding group according to the key start identifier, obtain the key composition symbol, continue to select the scrambled node code in the drive corresponding group according to the obtained key composition symbol, obtain the key composition symbol, and repeat the operation;

[0024] The obtained key start identifier and key composition identifier are set as the key information of the driving corresponding group at the current moment, and the corresponding transmission protocol is generated based on the key information.

[0025] Furthermore, the process of obtaining the real-time status data of the LED device at the current moment, processing it according to the transmission protocol, generating a feedback signal for transmission includes:

[0026] The LED device is provided with a data acquisition terminal, and the data acquisition terminal is used to collect real-time status data of the LED device during operation. The real-time status data includes three types: real-time power data, real-time temperature data and real-time brightness data. The device node processes the real-time status data obtained by the data acquisition terminal based on the transmission protocol, generates a feedback signal from the obtained real-time status data, and sends it to the corresponding drive management node.

[0027] Furthermore, the process of analyzing and processing the obtained real-time status data and the corresponding intelligent adjustment information according to the timing deviation value of the LED device to obtain the corresponding deviation characteristic data includes:

[0028] The drive management node obtains the corresponding feedback signal, decrypts it based on the transmission protocol, obtains the corresponding real-time status data, obtains the intelligent adjustment information stored in the timing control storage partition according to the corresponding timing deviation value, and generates a standard reference interval based on the intelligent adjustment information and the LED device reference information;

[0029] The obtained real-time status data is compared and analyzed with the generated standard reference interval. If it meets the standard reference interval, the unit time is marked as normal; if it does not meet the standard reference interval, the unit time is marked as abnormal; according to the distribution of unit times marked as abnormal, the deviation characteristic data of the corresponding type of real-time status data is generated.

[0030] Furthermore, the process of determining whether there is an abnormality according to the deviation characteristic data and regenerating the intelligent adjustment information if there is an abnormality includes:

[0031] The drive management node is preset with weight information of corresponding type of real-time status data, the obtained deviation feature data and the corresponding weight information are weighted, corresponding comprehensive deviation data is obtained according to the weighted processing, and the comprehensive deviation data is analyzed and processed;

[0032] The drive management node is provided with an intelligent adjustment algorithm according to the comprehensive deviation data, the obtained comprehensive deviation data is input into the intelligent adjustment algorithm, corresponding intelligent adjustment information is generated, a control signal is generated based on the key information using the obtained intelligent adjustment information, and the obtained control signal is sent to the corresponding device node based on the corresponding transmission protocol.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. By setting the drive topology network structure, corresponding device nodes and drive management nodes are set for different LED devices and their corresponding microcontrollers, and data transmission and management are performed on the corresponding drive corresponding groups according to the drive topology network structure to avoid other LED devices in the building from being associated with their incompatible microcontrollers, causing interference in the data processing process;

[0035] 2. Generate the transmission protocol through the corresponding driver corresponding group, encrypt and transmit the data information obtained by the device node and the driver management node respectively according to the transmission protocol, and perform encryption processing according to the transmission protocol, which can not only improve the security of information transmission between the device node and the driver management node, but also improve the accuracy of the transmission process;

[0036] 3. By setting the timing control storage partition, the timing feedback storage partition and the corresponding cyclic data set, the feedback signals and control signals stored in the timing control storage partition and the timing feedback storage partition are analyzed and processed according to the cyclic data set, and the timing deviation value of the LED device during use is updated, thereby improving the accuracy of the feedback digital control process to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of a feedback digital control method based on an LED driving power supply according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] like Figure 1 As shown, a feedback digital control method based on an LED driving power supply comprises the following steps:

[0039] Step S1: Setting up a drive management platform, inputting building information, setting up a drive management space according to the acquired building information, and using the drive management space to control and manage LED devices in the corresponding building;

[0040] Step S2: obtaining LED device information in the corresponding driver management space, setting driver management nodes and device nodes according to the LED device information, and setting a driver topology network structure according to their distribution;

[0041] Step S3: setting a timing control storage partition and a timing feedback storage partition in the drive management node, respectively for storing control signals and feedback signals, analyzing and processing them, and obtaining the timing deviation value of the LED device at the current moment;

[0042] Step S4: setting the transmission protocol between the device node and the drive management node according to the drive topology network structure and the current timing deviation value, obtaining the current real-time status data of the LED device and the intelligent adjustment information in the drive management node, and processing them according to the transmission protocol to generate feedback signals and control signals for transmission;

[0043] Step S5: Analyze and process the obtained real-time status data and the corresponding intelligent adjustment information according to the timing deviation value of the LED device, obtain the corresponding deviation characteristic data, and determine whether there is an abnormality according to the deviation characteristic data. If there is an abnormality, regenerate the intelligent adjustment information.

[0044] Setting up a drive management platform, which is used to manage LED devices in the corresponding building, thereby increasing the service life of the LED devices, reducing energy consumption and realizing intelligent control of the LED devices;

[0045] An information entry window is provided in the driver management platform, and the information entry window is used to enter building information, the building information includes building registration information and LED device information, the LED device information includes building LED device layout information, power supply electrical connection information, LED device parameter information and historical maintenance information, the building registration information includes building location information, structure acquisition information and property management information, the obtained building registration information is verified, and it is determined whether the corresponding building registration information meets the preset standard. When it meets the preset standard, a driver management space is generated, the obtained building information is stored in the driver management space, and the corresponding driver management space is encrypted. When the building registration information does not meet the preset standard, the driver management space is not generated, and the obtained building information is rejected;

[0046] In addition, it should be further explained that, in the specific implementation process, the driver management space is only matched with the corresponding building information, and the driver management space is encrypted to prevent other unmatched building information from entering the driver management space, causing interference to the data information in the driver management space or information leakage, which may affect the LED equipment.

[0047] Acquire a driver management space with a corresponding label, analyze and process the building information stored in the driver management space, acquire the LED device information included in the building information, and set the LED device basic distribution image of the driver management space according to the LED device information including the building LED device layout information; mark the location of the corresponding LED device in the obtained LED device basic distribution image, and mark it as a device node according to the marking result;

[0048] Based on the basic distribution image of the LED device, the power supply electrical connection information includes the distribution of the microcontrollers that perform the analysis and processing during the operation of the corresponding LED device in the building. According to the distribution of the microcontrollers of the corresponding LED device, a drive management node is set, and the drive management node is used to be associated with the microcontroller of the corresponding LED device and manage the data information in the corresponding microcontroller; the control process of the microcontroller of the corresponding LED device is classified, including a light adjustment controller, a power adjustment controller and an energy consumption adjustment controller; and the corresponding drive management sub-node is set according to the classification result of the controller;

[0049] Marking the position information of the corresponding device nodes and the drive control nodes in the drive management space on the LED device basic distribution image, connecting the corresponding device nodes and the drive control nodes to each other according to the power supply electrical connection information, and setting the LED device basic distribution image after the connection processing as the drive topology network structure;

[0050] The obtained driver topology network structure is associated with the corresponding driver management space, and the obtained driver topology network structure is stored.

[0051] Obtaining corresponding device nodes and driver management nodes in the driver topology network structure in the driver management space, setting the mutually related device nodes and driver management nodes into driver corresponding groups, marking the obtained driver corresponding groups, setting corresponding transmission protocols for corresponding driver corresponding groups according to the marking processing results, and realizing data exchange transmission between driver corresponding groups according to the corresponding transmission protocols;

[0052] The drive management node is provided with a timing control storage partition and a timing feedback storage partition. The timing control storage partition stores the control signal obtained in the corresponding drive management sub-node according to the time sequence. According to the different types of drive management sub-nodes, the standard change curve is set according to the influence of the control signal on the LED device; the timing feedback storage partition is used to store the feedback signal obtained in the LED device according to the time sequence, and generate the operation change curve of the LED device according to the feedback signal;

[0053] Preset a data processing cycle, the data processing cycle is used to set a cycle set for the standard change curves and operation change curves corresponding to the control signals and feedback signals in the timing control storage partition and the timing feedback storage partition, respectively, the cycle set includes a corresponding number of data processing cycles, generate a standard curve set and an operation curve set according to the standard change curves and operation change curves corresponding to the data processing cycles in the cycle set, and correspond the corresponding standard change curves and operation change curves in the standard curve set and the operation curve set at corresponding element positions according to the sequence of the data processing cycles; analyze and process the standard change curves and operation change curves at the same element position in the standard curve set and the operation curve set in turn according to the corresponding results, obtain the spectrum information of different curves at the same element position based on Fourier transform, and generate the phase deviation data corresponding to the same element position according to the obtained spectrum information;

[0054] Obtain the phase deviation data at each element position in the cycle set, obtain the maximum and minimum numbers of the phase deviation data, obtain the difference between the two, preset a deviation threshold, compare and analyze the difference between the two with the deviation threshold, when the difference between the two is less than the deviation threshold, mark the same element position as normal, when the difference between the two is greater than or equal to the deviation threshold, mark the same element position as abnormal, obtain the deviation normal rate of each same element position in the cycle set, preset a deviation normal rate standard, when the deviation normal rate is greater than or equal to the deviation normal rate standard, obtain the repetition value of the phase deviation data of the same element position marked as normal in the cycle set, and mark the obtained repetition value as the timing deviation value; when the deviation normal rate is less than the deviation normal rate standard, mark the cycle set as abnormal, and continue to use the timing deviation value in the previous cycle set;

[0055] Processing the collected standard change curve and operation change curve according to the obtained timing deviation value;

[0056] The LED device is provided with a data acquisition terminal, and the data acquisition terminal is used to collect real-time status data of the LED device during operation, and the real-time status data includes real-time power data, real-time temperature data and real-time brightness data; the device node analyzes and processes the real-time status data obtained by the data acquisition terminal, obtains the transmission protocol of the device node, and generates a feedback signal based on the obtained real-time status data and sends it to its corresponding drive management node based on the transmission protocol;

[0057] Obtaining the driver corresponding groups in the driver topology network structure, obtaining the number of the driver corresponding groups, setting node codes for the device nodes and driver management nodes in each driver corresponding group, analyzing and processing the obtained node codes, and generating the corresponding transmission protocol according to the node codes in the driver corresponding group, wherein the transmission protocol is the key information for encryption and decryption of feedback signals and control signals in the driver corresponding group during transmission;

[0058] Obtain the node code in the corresponding group of the driver and the corresponding timing deviation value in the current data processing cycle of the LED device, scramble the node code obtained by the corresponding group of the driver according to the timing deviation value, perform mixed operation on the scrambled code node according to the position, set the corresponding operation symbol according to the arrangement order of the code characters, analyze and process according to the operation symbol at the corresponding position, obtain the mixed operation result of the corresponding group of the driver, multiply the timing deviation value according to the mixed operation result, generate a key start identifier according to the product result, select the scrambled node code in the corresponding group of the driver according to the key start identifier, obtain the key composition symbol, continue to select the scrambled node code in the corresponding group of the driver according to the obtained key composition symbol, obtain the key composition symbol, until the key start identifier and the key composition symbol reach the preset standard of the key information, then stop selecting, and generate the key information in the corresponding group of the driver;

[0059] Based on the key information in the driver corresponding group, the real-time status data and control information obtained in the device node and the driver management node are encrypted, and the corresponding feedback signal and control signal are obtained according to the encryption processing result;

[0060] The feedback signal and control signal that have completed the encryption processing are transmitted.

[0061] It should be further explained that, in the specific implementation process, the node codes of the device nodes and the driver management nodes in the driver corresponding group are obtained according to the sorting of the driver corresponding group. A random coding algorithm is set in the driver management space, and the sorting result of the driver corresponding group is input into the random coding algorithm to obtain the node codes of the device nodes and the driver management nodes of the corresponding driver corresponding group.

[0062] The drive management node obtains the encrypted feedback signal, decrypts the feedback signal based on the key information, obtains the corresponding real-time status data, classifies the obtained real-time status data, obtains the corresponding data type, and sends it to the corresponding drive management sub-node according to the data type;

[0063] The drive management subnode obtains a timing deviation value corresponding to the data type, and inputs the obtained real-time status data into a corresponding timing feedback storage partition according to the obtained timing deviation value; the timing feedback storage partition generates a corresponding real-time change curve for the obtained real-time status data of the data type according to the time series, and obtains a corresponding standard change curve according to the real-time change curve and the corresponding timing deviation value;

[0064] Compare and analyze the obtained real-time change curve with the standard change curve to obtain the comparison result of the corresponding real-time change curve and the standard change curve in a unit time, wherein the standard change curve is generated according to the control signal and the reference information of the LED device in the corresponding time series, and also includes the corresponding standard reference interval, and compare and analyze the real-time status data in a unit time with the corresponding standard reference interval. If it meets the standard reference interval, the unit time is marked as normal; if it does not meet the standard reference interval, the unit time is marked as abnormal;

[0065] Obtain the distribution of abnormal unit time marked in the real-time change curve, and obtain the deviation characteristic data of the corresponding type of real-time status data within the abnormal unit time;

[0066] The drive management platform is provided with a deviation feature database corresponding to the LED device according to historical data information, wherein the deviation feature database includes standard deviation feature data of abnormal situations that may be encountered by the corresponding LED device during operation; the obtained deviation feature data is input into the deviation feature database for comparative analysis, and similarity data with standard deviation feature data of other abnormal situations is obtained according to the comparative analysis result, a similarity threshold is preset, and the annotated deviation feature data corresponding to the abnormal situation whose similarity data is greater than or equal to the similarity threshold is extracted; if there is no annotated deviation feature data whose similarity data is greater than or equal to the similarity threshold, the corresponding abnormal situation is extracted;

[0067] The obtained real-time status data, the deviation characteristic data obtained by each drive management sub-node, and the abnormal situation are packaged into a data packet.

[0068] Obtain data packets of corresponding LED devices, integrate the real-time status data, deviation characteristic data and abnormal conditions obtained by each drive management sub-node, preset weight information of the corresponding drive management sub-node, analyze and process the obtained deviation characteristic data and the corresponding abnormal conditions according to the weight information, perform weighted processing on the obtained deviation characteristic data and the corresponding weight information, and obtain corresponding comprehensive deviation data according to the weighted processing;

[0069] The drive management node is provided with an intelligent adjustment algorithm according to the comprehensive deviation data, the obtained comprehensive deviation data is input into the intelligent adjustment algorithm, corresponding intelligent adjustment information is generated, a control signal is generated based on the key information using the obtained intelligent adjustment information, and the obtained control signal is sent to the corresponding device node based on the corresponding transmission protocol.

[0070] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A feedback digital control method based on LED driving power supply, characterized in that: The following steps are involved: Step S1: Setting up a drive management platform, inputting building information, setting up a drive management space according to the acquired building information, and using the drive management space to control and manage LED devices in the corresponding building; Step S2: obtaining LED device information in the corresponding driver management space, setting driver management nodes and device nodes according to the LED device information, and setting a driver topology network structure according to their distribution; Step S3: setting a timing control storage partition and a timing feedback storage partition in the drive management node, respectively for storing control signals and feedback signals, analyzing and processing them, and obtaining the timing deviation value of the LED device at the current moment; Step S4: setting the transmission protocol between the device node and the drive management node according to the drive topology network structure and the current timing deviation value, obtaining the current real-time status data of the LED device and the intelligent adjustment information in the drive management node, and processing them according to the transmission protocol to generate feedback signals and control signals for transmission; Step S5: Analyze and process the obtained real-time status data and the corresponding intelligent adjustment information according to the timing deviation value of the LED device, obtain the corresponding deviation characteristic data, and determine whether there is an abnormality according to the deviation characteristic data. If there is an abnormality, regenerate the intelligent adjustment information.

2. A feedback digital control method based on LED driving power supply according to claim 1, characterized in that: The process of setting up the driver management platform and the corresponding driver management space includes: A drive management platform is provided, wherein an information entry window is provided in the drive management platform, wherein the information entry window is used to enter building information, wherein the building information includes building registration information and LED device information; the LED device information includes building LED device layout information, power supply electrical connection information and LED device parameter information; The driver management platform verifies the acquired building information, and determines whether to generate a driver storage space according to the verification result. If the verification is successful, a driver storage space is generated to store and manage the entered building information.

3. A feedback digital control method based on LED driving power supply according to claim 2, characterized in that: The process of setting the driving topology network structure includes: Acquire the LED device information stored in the driver management space, set the LED device basic distribution image of the driver management space according to the building LED device layout information therein, mark the location of the corresponding LED device in the LED device basic distribution image, and set it as a device node; The power electrical connection information includes the distribution of microcontrollers that perform analysis and processing during the operation of corresponding LED devices in the building. The corresponding positions of the microcontrollers are set as drive management nodes, and the corresponding device nodes and drive management nodes are connected based on the power electrical connection information to generate a drive topology network structure.

4. A feedback digital control method based on LED driving power supply according to claim 3, characterized in that: The process of setting the current timing deviation value of the LED device includes: The device nodes and the driver management nodes interconnected in the driver topology network structure are marked as driver corresponding groups, wherein the driver management node is provided with a timing control storage partition and a timing feedback storage partition, wherein the timing feedback storage partition is used to store feedback signals obtained in the LED device according to a time sequence; and the timing control storage partition is used to store corresponding control signals according to a time sequence; Preset a data processing cycle, and generate different types of operation change curves and standard change curves according to the feedback signal and the control signal according to the time series and the LED device parameter information according to the data processing cycle; set a cycle set, the cycle set includes multiple data processing cycles, and obtain the spectrum information of different curves at the same element position based on Fourier transform of the operation change curve and the standard change curve corresponding to each data processing cycle in the cycle set, and generate the phase deviation data corresponding to the same element position according to the obtained spectrum information; The phase deviation data at each element position in the cycle period set is obtained, and analysis and processing are performed according to the phase deviation data at each element position, and the timing deviation value at the current moment is obtained according to the processing result.

5. A feedback digital control method based on LED driving power supply according to claim 4, characterized in that: The process of setting the transmission protocol between the device node and the driver management node according to the driver topology network structure and the timing deviation value at the current moment includes: Obtain the number of drive corresponding groups in the drive topology network structure, set node codes for device nodes and drive management nodes in each drive corresponding group; obtain the timing deviation value corresponding to the current data processing cycle of the LED device, and scramble the obtained node code according to the timing deviation value; perform mixed operation on the scrambled code nodes according to their positions, obtain the mixed operation result of the drive corresponding group, multiply the timing deviation value according to the mixed operation result, generate a key start identifier according to the product result, select the scrambled node code in the drive corresponding group according to the key start identifier, obtain the key composition symbol, continue to select the scrambled node code in the drive corresponding group according to the obtained key composition symbol, obtain the key composition symbol, and repeat the operation; The obtained key start identifier and key composition identifier are set as the key information of the driving corresponding group at the current moment, and the corresponding transmission protocol is generated based on the key information.

6. A feedback digital control method based on LED driving power supply according to claim 5, characterized in that: The process of obtaining the real-time status data of the LED device at the current moment, processing it according to the transmission protocol, generating a feedback signal for transmission includes: The LED device is provided with a data acquisition terminal, and the data acquisition terminal is used to collect real-time status data of the LED device during operation. The real-time status data includes three types: real-time power data, real-time temperature data and real-time brightness data. The device node processes the real-time status data obtained by the data acquisition terminal based on the transmission protocol, generates a feedback signal from the obtained real-time status data, and sends it to the corresponding drive management node.

7. A feedback digital control method based on LED driving power supply according to claim 6, characterized in that: The process of analyzing and processing the obtained real-time status data and the corresponding intelligent adjustment information according to the timing deviation value of the LED device to obtain the corresponding deviation characteristic data includes: The drive management node obtains the corresponding feedback signal, decrypts it based on the transmission protocol, obtains the corresponding real-time status data, obtains the intelligent adjustment information stored in the timing control storage partition according to the corresponding timing deviation value, and generates a standard reference interval based on the intelligent adjustment information and the LED device reference information; The obtained real-time status data is compared and analyzed with the generated standard reference interval. If it meets the standard reference interval, the corresponding unit time is marked as normal; if it does not meet the standard reference interval, the corresponding unit time is marked as abnormal; according to the distribution of unit time marked as abnormal, the deviation characteristic data of the corresponding type of real-time status data is generated.

8. The feedback digital control method based on LED driving power supply according to claim 7, characterized in that: The process of judging whether there is an abnormality according to the deviation characteristic data and regenerating the intelligent adjustment information if there is an abnormality includes: The drive management node is preset with weight information of corresponding type of real-time status data, the obtained deviation feature data and the corresponding weight information are weighted, corresponding comprehensive deviation data is obtained according to the weighted processing, and the comprehensive deviation data is analyzed and processed; The drive management node is provided with an intelligent adjustment algorithm according to the comprehensive deviation data, the obtained comprehensive deviation data is input into the intelligent adjustment algorithm, corresponding intelligent adjustment information is generated, a control signal is generated based on the key information using the obtained intelligent adjustment information, and the obtained control signal is sent to the corresponding device node based on the corresponding transmission protocol.

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