CN116471722B - Intelligent detection and adjustment method and system for running state of LED driving power supply - Google Patents
Intelligent detection and adjustment method and system for running state of LED driving power supply Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
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- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
An intelligent detection and adjustment method and system for the running state of an LED driving power supply belong to the field of electronic circuits, and comprise the following steps: acquiring information of a first LED circuit; determining a plurality of detection nodes according to the information of the LED distribution positions; carrying out temperature rise protection analysis on each loop according to the component composition, and configuring a preset temperature rise threshold value; transmitting a plurality of detection nodes to the data detection device, detecting the first LED circuit, and outputting a plurality of detection data sets; the temperature rise index is output by carrying out temperature rise identification on a plurality of detection data sets; identifying and judging the loop according to a preset temperature rise threshold value, and acquiring abnormal loop feedback information; and inputting the feedback information of the abnormal loop into the control terminal, and outputting the protection control parameters. The application solves the technical problem that the performance of the LED lamp is affected due to the overhigh temperature of circuit components in the prior art, and achieves the technical effects of ensuring the stable operation of the LED driving power supply and improving the performance of the LED lamp.
Description
Technical Field
The application relates to the field of electronic circuits, in particular to an intelligent detection and adjustment method and system for the running state of an LED driving power supply.
Background
As LED lamps are becoming popular as a representative of green and environment-friendly illumination, attention is being paid to efficient and stable operation of LED driving power sources. However, in the practical application process, the power supply voltage of the LED lamp has certain fluctuation, and the temperature is easy to be too high due to long-time operation, so that the brightness of the LED lamp is reduced, the service life is shortened, even the phenomena of lamp bead melting and the like occur, and the performance of the LED lamp is seriously influenced.
Aiming at the problems, some common LED driving power supplies in the current market have great limitations or defects, and the effective detection and adjustment of the running state of the LED driving power supply cannot be well realized.
Disclosure of Invention
The embodiment of the application provides an intelligent detection and adjustment method and system for the running state of an LED driving power supply, which are used for solving the technical problem that the performance of an LED lamp is influenced due to overhigh temperature of circuit components in the prior art, and achieving the technical effects of ensuring the stable running of the LED driving power supply and improving the performance of the LED lamp.
In a first aspect, an embodiment of the present application provides an intelligent detection adjustment method for an operating state of an LED driving power supply, where the intelligent detection adjustment method is applied to an LED power supply detection system, and the system is connected with a data detection device in a communication manner, and the intelligent detection adjustment method includes: acquiring information of a first LED circuit, wherein the information of the first LED circuit comprises component components, LED distribution positions, a circuit driving power supply and a circuit connection relation; determining a plurality of detection nodes according to the information of the LED distribution positions; carrying out temperature rise protection analysis on each loop according to the component composition, and respectively configuring preset temperature rise thresholds for protecting each loop; transmitting a plurality of detection nodes to a data detection device, detecting the first LED circuit based on the data detection device, and outputting a plurality of detection data sets, wherein each detection data set corresponds to one detection node; the temperature rise identification is carried out on the plurality of detection data sets, and a plurality of temperature rise indexes corresponding to the plurality of detection nodes are output; identifying and judging loops where a plurality of temperature rise indexes are located according to a preset temperature rise threshold value, and acquiring abnormal loop feedback information; and inputting the abnormal loop feedback information into a control terminal of the circuit driving power supply, and outputting protection control parameters.
On the other hand, the embodiment of the application also provides an intelligent detection and adjustment system for the running state of the LED driving power supply, wherein the intelligent detection and adjustment system comprises: the circuit information acquisition module is used for acquiring information of the first LED circuit, wherein the information of the first LED circuit comprises component components, LED distribution positions, a circuit driving power supply and a circuit connection relation; the detection node determining module is used for determining a plurality of detection nodes according to the information of the LED distribution positions; the temperature rise protection analysis module is used for carrying out temperature rise protection analysis on each loop according to the component composition and is respectively configured with a preset temperature rise threshold value for protecting each loop; the circuit data detection module is used for sending a plurality of detection nodes into the data detection device, detecting the first LED circuit based on the data detection device and outputting a plurality of detection data sets, wherein each detection data set corresponds to one detection node; the temperature rise index acquisition module is used for identifying the temperature rise of the plurality of detection data sets and outputting a plurality of temperature rise indexes corresponding to the plurality of detection nodes; the loop identification and judgment module is used for carrying out identification and judgment on loops where the plurality of temperature rise indexes are located according to a preset temperature rise threshold value, and obtaining abnormal loop feedback information; and the protection control parameter module is used for inputting the feedback information of the abnormal loop into the control terminal of the circuit driving power supply and outputting the protection control parameters.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
the LED circuit information is acquired by the data detection device, the detection nodes are determined based on the LED distribution in the circuit loop, the circuit loop is detected and data are acquired through the detection nodes and compared with the preset temperature rise threshold value set for temperature rise protection, the temperature rise index is output through the data detection set and the detection nodes, the abnormal loop is determined, the control terminal is further fed back, the protection parameters are output, and the technical means of regulating the circuit is adopted, so that the technical problem that the performance of the LED lamp is influenced due to the fact that the temperature of circuit components is too high in the prior art is effectively solved, the technical effects of ensuring the stable operation of the power supply loop of the LED driving power supply and improving the performance of the LED lamp are achieved.
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In order to more clearly illustrate the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described below, it being obvious that the drawings in the description below are only exemplary and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of an intelligent detection and adjustment method for an operation state of an LED driving power supply according to an embodiment of the present application;
fig. 2 is a schematic flow chart of loop identification and judgment in an intelligent detection and adjustment method for operating state of an LED driving power supply according to an embodiment of the present application;
fig. 3 is a schematic flow chart of temperature rise protection analysis on a loop in an intelligent detection and adjustment method for operating state of an LED driving power supply according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an intelligent detection and adjustment system for an operating state of an LED driving power supply according to an embodiment of the present application.
Reference numerals illustrate: a circuit information acquisition module 11; a detection node determination module 12; a temperature rise protection analysis module 13; a circuit data detection module 14; a temperature rise index acquisition module 15; a loop identification judgment module 16; the control parameter module 17 is protected.
Detailed Description
The embodiment of the application solves the technical problem that the performance of the LED lamp is influenced due to overhigh temperature of circuit components in the prior art by providing the intelligent detection and adjustment method and the intelligent detection and adjustment system for the running state of the LED driving power supply, and achieves the technical effects of ensuring the stable running of the LED circuit and improving the performance of the LED lamp.
In the following, the technical solutions of the present application will be clearly and completely described with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments of the present application, and that the present application is not limited by the exemplary embodiments described herein. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present application are shown.
Example 1
As shown in fig. 1, an intelligent detection and adjustment method for the running state of an LED driving power supply is applied to an LED power supply detection system, and the system is in communication connection with a data detection device.
Specifically, the LED power supply detection system is a system for detecting and adjusting the power supply of an LED driving power supply and an LED lamp in real time. The data detection device is connected with the LED power supply detection system in a wired mode and a wireless mode, wherein the wireless communication modes comprise Bluetooth, wi-Fi, zigBee, loRa and the like; the wired communication modes include RS232, RS485, ethernet and the like. The data detection device collects circuit information, data are transmitted to the LED power supply detection system, the LED power supply detection system analyzes the data information of the LED lamp power supply circuit according to the intelligent detection adjustment method, the power supply problem of the LED lamp is found and processed in time, and the performance of the LED lamp is improved.
The intelligent detection adjustment method comprises the following steps:
step S100: acquiring information of a first LED circuit, wherein the information of the first LED circuit comprises component components, LED distribution positions, a circuit driving power supply and a circuit connection relation;
specifically, the first LED circuit is an LED circuit to be detected by the LED power supply detection system, and includes an LED driving power supply and an LED lamp circuit. The information of the first LED circuit comprises components, LED distribution positions, a circuit driving power supply and a circuit connection relation. For the first LED circuit having the circuit specification and the circuit diagram, information of the first LED circuit can be acquired through the circuit diagram and input into the power supply detection system.
For a first LED circuit without a circuit instruction book and a circuit diagram, determining the number and parameters, distribution positions, circuit connection relations and the like of components by using a circuit testing instrument according to the appearance and disassembly composition of the LED circuit, simulating the LED circuit by using circuit analysis software, realizing simulation experiments on the circuit, perfecting the information of the first LED circuit, and inputting the information into a power supply detection system.
The components, the distribution positions, the driving power supply and the connection relation of the LED circuit are obtained, so that effective technical support can be provided for detection and performance improvement of the LED circuit.
Step S200: determining a plurality of detection nodes according to the information of the LED distribution positions;
specifically, the information of the distribution positions of the LEDs refers to information such as positions, numbers, arrangement modes and the like of the LED lamp beads in the LED circuit. The detection node is a targeted detection node which needs to detect node information in real time in a circuit due to a connection mode, lamp bead criticality and environmental influence. For the stable operation and the detection flexibility of the LED circuit, a detection mode of jointly combining contact and non-contact is adopted for data acquisition of the detection node, wherein contact type measurement comprises the steps of constructing a detection circuit in the circuit, installing a detection device and the like; non-contact measurements include thermal imaging measurements, acoustic wave detection, magnetic field detection, and the like.
The detection node is determined according to the use environment, the installation position and the like of the circuit and comprises different circuit connection positions, high-temperature positions, key LED lamp bead positions, driving power supply positions and the like. The LED circuit is composed of a plurality of circuits, so that the mutual influence exists, the electric energy fluctuation is caused, and the temperature rise is caused; the high-temperature part is a part with higher installation environment temperature and influence on the temperature rise of the circuit, and the high-temperature part can be monitored to timely find out problems for repairing; the key LED lamp beads are the positions of the lamp beads which are applied to channels and tunnels and are required to ensure high brightness and continuous operation, and the detection nodes are arranged to ensure stable operation of the lamp; the driving power supply is a key point for ensuring stable quality of electric energy, and the temperature and the electric energy quality of the power supply are detected to ensure stable power supply of the circuit.
And the circuit is subjected to targeted detection according to the information of the LED distribution positions, detection nodes are arranged in a contact type and non-contact type detection mode, the accuracy of detection data is improved, and technical support is provided for the follow-up monitoring and adjusting circuit according to the detection nodes.
Step S300: carrying out temperature rise protection analysis on each loop according to the component composition, and respectively configuring preset temperature rise thresholds for protecting each loop;
specifically, the components are composed of different kinds, materials, sizes, numbers and the like, and temperature characteristic curves of the components composed of each loop are tested. And performing simulation on each loop, and setting the maximum working temperature limit of the components, the heat dissipation capacity at different temperatures and the maximum power bearable at different temperatures.
Setting the lowest temperature and temperature rise temperature difference of each loop of the circuit capable of normally running, adjusting the gradually-raised temperature by using a machine learning optimization algorithm under an analog simulation state, comparing the analog running power of the components with the limiting power under the running temperature, optimizing the loop running to a state of balanced power distribution of each component, recording a temperature value, and taking the temperature value as a preset temperature rise threshold for protecting each loop, wherein the preset temperature rise threshold refers to an upper limit temperature preset for preventing the components in the circuit from overheating. The machine learning optimization algorithm can be a gradient ascent algorithm, an AdaGrad algorithm, an RMSProp algorithm and the like.
Through carrying out temperature rise protection analysis to each return circuit that components and parts are constituteed, the preset temperature rise threshold value of each return circuit is accurately confirmed, the steady operation of components and parts is ensured, promotes components and parts's performance, provides the detection basis for follow-up regulation to the circuit.
Step S400: transmitting the plurality of detection nodes to the data detection device, detecting the first LED circuit based on the data detection device, and outputting a plurality of detection data sets, wherein each detection data set corresponds to one detection node;
specifically, the counter is used to realize cyclic scanning on the detection nodes in a scanning mode, each node is detected and a corresponding mask is transmitted, and the data detection device determines the positions of the detection nodes according to the mask. The data acquisition device sends information of the detection nodes to the intelligent detection adjustment system, the intelligent detection adjustment system refers to the existing detection method and standard according to the circuit structure, the signal type, the detection coverage rate and the like, an optimization algorithm is utilized to generate a detection scheme, and the detection scheme is converted into a specific detection sequence according to masks of all the detection nodes.
The intelligent detection adjustment system converts the detection scheme into a detection sequence and sends the detection sequence to the data detection device, and the data detection device stimulates the detection nodes of the LED circuit one by one according to the detection sequence and collects corresponding detection data. In the detection process, a detection instrument such as an infrared thermometer, a magnetic field detector, a thermal imager, a temperature acquisition instrument and the like is combined according to the detection content. After detection is completed, the acquired detection data is subjected to data preprocessing, signal processing and fault diagnosis analysis by using MATLAB, and node detection information is subjected to data visualization and analysis report generation by using Python according to each detection node to form a detection data set.
Each detection data set corresponds to a tested node, and the information such as input stimulation signals and response data of the node is included. The detection nodes are subjected to detailed data detection and correspondingly generate detection data sets, so that a system can be helped to timely adjust a circuit, the running stability of the circuit is improved, and the performance of the lamp is improved.
Step S500: the temperature rise identification is carried out on the plurality of detection data sets, and a plurality of temperature rise indexes corresponding to the plurality of detection nodes are output;
specifically, firstly, uniformly processing data of a plurality of detection data sets and unifying the range of the data, wherein the data with abnormal values and missing values are processed by adopting an interpolation method, a smoothing method and an abnormal value detection algorithm; feature extraction is performed by using methods such as PCA, ICA, wavelet transformation and the like to integrate feature information. Then, a physical model and a machine learning model are established according to the processed data. The physical model builds an equation set through the physical characteristics of the circuit and the circuit parameters, performs physical modeling through a parameter modeling method, and solves the equation set to calculate the normal temperature distribution of each node in the circuit. The machine learning model is a model trained according to historical detection data of the detection circuit, and the model learns the influence rule of parameters such as the lamp bead distribution, the voltage, the current and the like of the circuit on the temperature rise and the temperature rise index level under different normal working states. And finally, inputting the processed multiple detection data sets into a physical model and a machine learning model, traversing the multiple detection data sets, taking the detection data sets as a test set, and determining a temperature rise index according to the normal temperature distribution of the physical model by using a logistic regression algorithm.
By establishing a physical model and a machine learning model for the circuit, the temperature rise index is accurately determined according to the detection data set, information support is provided for subsequent adjustment of the temperature rise index, and the technical effect of accurately adjusting and guaranteeing stable operation of the circuit is achieved.
Step S600: identifying and judging loops where the temperature rise indexes are located according to the preset temperature rise threshold value, and acquiring abnormal loop feedback information;
specifically, during operation of the circuit, there may be a temperature rise due to excessive temperatures generated by certain components during use. If an abnormal loop exists in the circuit, certain components in the abnormal loop can exceed a preset temperature rise threshold value. The temperature parameter in the physical model is the normal temperature distribution of the circuit, and is the same as the preset temperature rise threshold, and the temperature rise index determined by the detection data set and the machine learning model is the current temperature parameter of the circuit and the predicted temperature parameter of the circuit.
And traversing the temperature rise indexes by taking the preset temperature rise threshold as a standard, judging the loop where the temperature rise indexes are located, directly comparing the temperature rise indexes with the same preset temperature rise threshold when one loop exists, and comparing the lowest threshold with the temperature rise indexes when one loop exists with different preset temperature rise thresholds. And if the temperature rise index is greater than or equal to the preset temperature rise threshold value of the loop, indicating that the loop is abnormal, collecting information of the abnormal loop, searching a data detection set and a detection node corresponding to the temperature rise index, and acquiring feedback information of the abnormal loop.
The loop where the temperature rise index is located is identified and judged, so that the abnormal loop is accurately locked, the information of the abnormal loop is acquired, and data support is provided for the follow-up technical effect of accurate adjustment according to the feedback information of the abnormal loop.
Step S700: and inputting the abnormal loop feedback information into a control terminal of the circuit driving power supply, and outputting protection control parameters.
Specifically, the abnormal loop feedback information may be used to indicate a specific location and condition of an abnormal loop in the circuit for corresponding repair and maintenance to avoid failure of the entire circuit or system due to the abnormal loop. The abnormal loop feedback information is input into a control terminal of the circuit topping power supply through two modes of serial port communication and network communication. The control terminal analyzes the feedback information by using different algorithms.
And calculating the protection control parameters based on the analysis information of the abnormal loop feedback information. First, circuit components, such as transistors, capacitors, and inductors, that need to be protected are determined based on the components related to the abnormal loop feedback information. Parameters of the corresponding components, such as current, voltage, frequency, etc., are then configured according to specifications and specific requirements of the circuit components. Finally, according to the parameters, the protection control parameters such as output current, output voltage and the like which need to be output are calculated through an intelligent detection and adjustment system, and are adjusted according to actual conditions. And outputting the protection control parameters through the control terminal.
The components in the circuit can be accurately protected through the LED driving power supply by obtaining the protection control parameters, so that the stability and the reliability of the circuit are ensured, the service life of the components of the circuit can be prolonged, and the working performance of the whole circuit is improved.
Further, the embodiment of the application further comprises:
step S410: judging whether the circuit driving power supply is a constant voltage source or not according to the parameter configuration of the circuit driving power supply, and if so, judging whether the circuit driving power supply is a constant voltage source;
step S420: loop identification is carried out on the plurality of detection nodes, nodes belonging to the same loop are collected, and a plurality of collection nodes are output;
step S430: and classifying the plurality of detection data sets according to the plurality of collection nodes, and outputting a plurality of detection data sets, wherein the plurality of detection data sets are in one-to-one correspondence with the plurality of collection nodes.
Specifically, the power supply driving mode comprises a constant current mode and a voltage stabilizing mode, wherein the constant current mode is to directly supply power to the whole circuit by constant current, LEDs are in series or parallel operation, and when a certain LED fault is to be solved, the operation of other LEDs is influenced; the voltage stabilizing type LED constant-voltage power supply is characterized in that one constant-voltage source supplies a plurality of constant-voltage sources, each constant-voltage source independently supplies power to each path of LED, and one path of faults cannot influence the operation of other loops. And acquiring parameter configuration of a circuit driving power supply through the first LED circuit information, judging the type of the power supply according to the output voltage in the parameter configuration, and when the output voltage of the power supply is a constant value, obtaining the constant voltage source.
When the driving power supply is a constant voltage source, loop identification is performed on all detection nodes in a circuit powered by the constant voltage source. Firstly, converting the physical connection relation between circuit detection nodes into a graphic model, and constructing a network topology structure of the LED circuit. Secondly, marking all loops by using a loop algorithm; a depth limited search algorithm is used to find the cut point. Then, the loops are divided according to the cut points, and the detection nodes in each loop are put into a separate set. Finally, the nodes in each set are the detection nodes belonging to the same loop, and a plurality of set nodes are output.
After the detection nodes in the circuit are divided into a plurality of sets according to the method of graph topology analysis, the detection data sets corresponding to the detection nodes need to be further classified according to the sets. And marking the detection data corresponding to the detection nodes in the same set with the same mark, so that a plurality of detection data sets are divided into a plurality of detection data sets of the same loop. The circuit powered by the constant voltage source is provided with a plurality of different loops, and the different loops correspond to different detection data sets.
The circuit is divided by graph topology analysis and is identified according to the detection nodes, the detection data sets are classified, the detection circuit can be accurately positioned according to the detection data sets, and the circuit can be conveniently and efficiently regulated according to the detection data.
Further, as shown in fig. 2, the embodiment of the present application further includes:
step S610: acquiring a temperature rise index which is larger than or equal to the preset temperature rise threshold value in the plurality of temperature rise indexes, and determining a corresponding belonging set of the temperature rise indexes which is larger than or equal to the preset temperature rise threshold value;
step S620: determining an abnormal loop according to the corresponding set of the temperature rise indexes which are larger than or equal to the preset temperature rise threshold value;
step S630: judging whether the number of LEDs in the abnormal loop is more than or equal to 2, and if the number of LEDs in the abnormal loop is less than 2, adjusting the power supply of the abnormal loop through the circuit driving power supply according to a feedback adjusting instruction.
Specifically, a plurality of temperature rise indexes obtained by collecting a data detection set obtained by detecting nodes are determined, a plurality of preset temperature rise thresholds of different loops are determined, the temperature rise indexes are corresponding to the preset temperature rise thresholds, wherein when a plurality of nodes exist in one loop, the largest temperature rise index is selected to correspond to the preset temperature rise threshold, when the corresponding detection data does not exist in the preset temperature rise threshold, the fact that the point is not detected by the detection scheme at the time is indicated, and the preset temperature rise threshold is deleted without comparison.
Traversing the preset temperature rise index, comparing the temperature rise index with the temperature rise index corresponding to the preset temperature rise index, acquiring the temperature rise index with the temperature rise index larger than the preset temperature rise threshold, and determining a data detection set corresponding to the temperature rise index. And determining the position of the detection node according to the data detection set, further determining an abnormal loop, and judging the number of abnormal LED components in the abnormal loop.
Judging whether the number of LEDs in the abnormal loop is more than or equal to 2 or not according to the number of LEDs in the abnormal loop, feeding back the number of LEDs in the abnormal loop and the abnormal loop to an intelligent detection and adjustment system at the same time, and generating a feedback adjustment instruction by the system, wherein the feedback adjustment instruction controls power supply. The abnormal loop only has one abnormal temperature of the LED components, which is caused by the occasional problem caused by the change of a certain external environment, and the abnormal loop is not in question, and the protection is realized by adjusting the voltage or the current of the circuit driving power supply according to the feedback adjusting instruction, such as reducing the working current of the circuit or increasing the heat dissipation of a radiator.
The abnormal temperature is determined through the detection data, the abnormal loop and the number of LEDs in the abnormal loop are further determined, when the number of LEDs in the abnormal loop is 1, a feedback adjustment instruction is generated through the intelligent detection system, the abnormal loop is timely adjusted through the driving power supply, the stable operation of the LED driving power supply is improved, the loss of the LED lamp is reduced, and the performance is improved.
Further, the embodiment of the application further comprises:
step S640: if the number of the abnormal loops is greater than or equal to 2, determining abnormal nodes according to the temperature rise index greater than or equal to the preset temperature rise threshold, wherein the abnormal nodes correspond to one LED;
step S650: and acquiring a single feedback adjustment instruction based on the abnormal node, and adjusting the power supply of the abnormal node based on the single feedback adjustment instruction.
Specifically, comparing a preset temperature threshold value with a temperature rise index, counting the number of the temperature rise indexes which is larger than or equal to the preset temperature rise threshold value, determining a detection data set according to the temperature rise index when the number is larger than or equal to 2, determining a detection node according to the detection data set, and further determining a detected LED which is an abnormal node. The positions and parameters of the LEDs in the abnormal loop and the abnormal loop are fed back to the intelligent detection and adjustment system, and the system generates a single feedback adjustment instruction aiming at the LEDs, wherein the single feedback adjustment instruction controls the LEDs.
Since the abnormal circuit has a problem in that the entire circuit is abnormal in temperature of a plurality of LED components, the performance of other LEDs is affected if the entire circuit is adjusted, and thus abnormal nodes are processed in a targeted manner according to a single feedback instruction, for example, the power supply of the nodes is adjusted by adjusting a resistor.
The abnormal nodes are adjusted in a targeted mode through the single feedback adjusting instruction, so that stable operation of the whole loop is guaranteed, influence on other LEDs is avoided, and the running performance of the circuit is improved.
Further, as shown in fig. 3, the embodiment of the present application further includes:
step S310: determining the temperature sensitivity of the components of each loop according to the information formed by the components, wherein the temperature sensitivity of the components represents the sensitivity of the components for power change under the temperature rise condition;
step S320: and carrying out loop power load analysis according to the temperature sensitivity of the components to obtain an equilibrium temperature rise threshold under the condition of loop load balancing, and outputting the equilibrium temperature rise threshold as a preset temperature rise threshold.
Specifically, the information of component composition refers to information about the types, models, numbers and the like of various components used in the LED circuit, such as parameters of the type and power of the power module, parameters of the material, the size, the shape and the like of the heat dissipation module, parameters of the number and models of electrolytic capacitors and metal film capacitors, and parameters of the number and models of resistors and inductors. The energy consumption degree of different components is different when working under different temperatures, and the components are aged or damaged due to the fact that the temperature is too high, so that the temperature sensitivity of each component needs to be determined. And (3) circuit information in the system is called, the model number, the number and the like of each component are determined, and a temperature characteristic curve of each component is obtained through a specification of the component.
And carrying out loop power load analysis on the temperature sensitivity of the components. Firstly, the detection system automatically simulates an LED circuit according to circuit information, an analog circuit is built, and meanwhile, the maximum working temperature limit of the component is determined according to the temperature characteristic curve of the component; secondly, calculating the power heat dissipation value of the component according to the maximum working temperature of the component, namely the power required to dissipate heat of the component at the maximum working temperature; and then, calculating the power received by the component in the working state according to the circuit topology and the element parameters in the simulation circuit, comparing the power heat dissipation value and the received power value of the component, judging whether the component can bear the power load, and adjusting the power load by utilizing a gradient rising algorithm. And finally, adjusting the components in the circuit to a state that the components are not overloaded according to the power balance distribution, and keeping the whole loop stable during operation, wherein the state is a loop load balance state. The obtained balanced temperature rise threshold value in the circuit state is a limit value of the temperature change range of components in the whole circuit, and when the balanced temperature rise threshold value reaches the limit value, corresponding measures are needed to be taken to reduce the temperature.
And outputting the obtained balanced temperature rise threshold as a preset temperature rise threshold, so as to realize the management and monitoring of the temperature of the LED lamp. If the actual temperature of the LED lamp reaches the preset temperature rise threshold, the working state of the LED lamp is controlled, timely heat dissipation treatment is carried out, excessive heat damage to components is avoided, stable operation of an LED circuit is ensured, and the service performance of the LED lamp is improved.
Further, the embodiment of the application further comprises:
step S660: if the number of the abnormal loops is more than or equal to 2, acquiring the connection mode of the LEDs in the abnormal loops according to the circuit connection mode;
step S670: and determining a power supply adjusting parameter according to the connection mode of the LEDs, and adjusting the power supply of the abnormal node according to the power supply adjusting parameter.
Specifically, the preset temperature threshold value and the temperature rise index are compared, the number of the statistical temperature rise index which is larger than or equal to the preset temperature rise threshold value is counted, and when the number is larger than or equal to 2. Determining a detection data set according to the temperature rise index, determining a detection node according to the detection data set, further determining a loop where the detection node is located, and obtaining the connection modes of the loop in a physical model, including active connection, passive connection, parallel connection, series connection and the like, wherein different LED connection modes correspond to different power supply adjustment parameters, and the parameters include voltage, current, resistance and the like. The normal values of the parameters are determined through the physical model, the normal parameters are compared with the detected actual parameters, the actual parameters are adjusted to the normal value range, the power supply adjustment and protection of abnormal nodes are realized, the problems of overload, overvoltage and the like are prevented, the stable operation of the circuit is ensured, and the performance of the LED is further improved.
Further, the embodiment of the application further comprises:
step S710: inputting the abnormal loop feedback information into a control terminal of the circuit driving power supply, wherein the abnormal loop feedback information comprises a temperature rise difference, and the temperature rise difference is the difference between a temperature rise index of an abnormal node and a corresponding preset temperature rise threshold value;
step S720: outputting the protection control parameters according to the response of the control terminal of the circuit driving power supply to the temperature rise difference compensation function,
step S730: the compensation function is an objective function built by taking the temperature rise difference minimization as a target and taking the power supply adjusting parameter as a variable.
Specifically, the abnormal loop feedback information refers to the difference between the abnormal loop and the normal loop, including Wen Shengcha, current difference, resistance difference, etc., where the temperature rise difference is a phenomenon caused by other factors, and Wen Shengcha is the difference between the temperature rise index of the abnormal node and the corresponding preset temperature rise threshold.
The control terminal analyzes the temperature rise difference, analyzes the reason and range and possible influence of the temperature rise, analyzes the waveform change of the voltage and the current in the circuit through a time domain analysis algorithm, and judges the occurrence position and the abnormal shape of the abnormal loop; analyzing the potential distribution and circuit structure characteristics of different areas in the circuit through a space analysis algorithm, and judging the source and the influence range of the abnormality; and analyzing the statistical characteristics of signals in the circuit through a statistical analysis algorithm, and judging the probability, the occurrence frequency and the like of the abnormal loop. And (3) aiming at minimizing damage caused by temperature rise, adjusting a power supply adjusting parameter, obtaining a proportionality coefficient based on the power supply adjusting parameter, determining a compensation function in a proportionality control mode, outputting a protection control parameter, and controlling an LED driving power supply so as to realize stable operation of the LED.
Through accurate analysis temperature rise factor, according to circuit fluctuation factor according to the form of proportional control to power regulation parameter compensates, in time stabilizes LED drive power supply, promotes circuit running performance.
In summary, the intelligent detection and adjustment method for the running state of the LED driving power supply has the following technical effects:
and acquiring information of the first LED circuit, wherein the information of the first LED circuit comprises component composition, LED distribution positions, circuit driving power supply and circuit connection relation, and providing data support for the follow-up determination of circuit detection nodes and the determination of a preset temperature rise threshold value by constructing a simulation model by acquiring the circuit information. Determining a plurality of detection nodes according to the information of the LED distribution positions so as to acquire circuit information; according to the component composition, carrying out temperature rise protection analysis on each loop, respectively configuring preset temperature rise threshold values for protecting each loop, and setting up temperature standards for each component of the whole circuit; transmitting a plurality of detection nodes to a data detection device, detecting the first LED circuit based on the data detection device, and outputting a plurality of detection data sets, wherein each detection data set corresponds to one detection node, and the detection data corresponds to the detection nodes one by one, so that the subsequent retrieval and classification of the data are facilitated; the temperature rise identification is carried out on the plurality of detection data sets, and a plurality of temperature rise indexes corresponding to the plurality of detection nodes are output; acquiring circuit information with temperature rise phenomenon by identifying the detection data set; identifying and judging loops in which the temperature rise indexes are located according to a preset temperature rise threshold value, acquiring abnormal loop feedback information, determining the loops according to data and generating specific information; the abnormal loop feedback information is input into the control terminal of the circuit driving power supply, the protection control parameters are output, and the protection control parameters are generated according to the abnormal loop information, so that the technical effects of ensuring the stable operation of the LED driving power supply and improving the performance of the LED lamp are achieved.
Example two
Based on the same inventive concept as the intelligent detection and adjustment method for the operating state of the LED driving power supply in the foregoing embodiment, as shown in fig. 4, the present application further provides an intelligent detection and adjustment system for the operating state of the LED driving power supply, where the intelligent detection and adjustment system is in communication connection with the data detection device. The intelligent detection adjustment system comprises:
the circuit information acquisition module 11 is used for acquiring information of a first LED circuit, wherein the information of the first LED circuit comprises component components, LED distribution positions, a circuit driving power supply and a circuit connection relation;
the detection node determining module 12 is used for determining a plurality of detection nodes according to the information of the LED distribution positions;
the temperature rise protection analysis module 13 is used for carrying out temperature rise protection analysis on each loop according to the component composition and is respectively configured with a preset temperature rise threshold value for protecting each loop;
a circuit data detection module 14, configured to send a plurality of detection nodes to a data detection device, detect the first LED circuit based on the data detection device, and output a plurality of detection data sets, where each detection data set corresponds to one detection node;
The temperature rise index acquisition module 15 is used for identifying the temperature rise of the plurality of detection data sets and outputting a plurality of temperature rise indexes corresponding to the plurality of detection nodes;
the loop identification and judgment module 16 is used for carrying out identification and judgment on loops where the plurality of temperature rise indexes are located according to a preset temperature rise threshold value, and obtaining abnormal loop feedback information;
the protection control parameter module 17 is used for inputting the feedback information of the abnormal loop into the control terminal of the circuit driving power supply and outputting the protection control parameters.
Further, the embodiment of the application further comprises:
the constant voltage source judging module is used for judging whether the circuit driving power supply is a constant voltage source or not according to the parameter configuration of the circuit driving power supply, and if the circuit driving power supply is the constant voltage source;
the loop node assembly module is used for carrying out loop identification on a plurality of detection nodes, assembling the nodes belonging to the same loop and outputting a plurality of assembly nodes;
and the collection node classification module is used for classifying the plurality of detection data sets according to the plurality of collection nodes and outputting the plurality of detection data sets, wherein the plurality of detection data sets are in one-to-one correspondence with the plurality of collection nodes.
Further, the embodiment of the application further comprises:
the temperature rise index determining module is used for acquiring temperature rise indexes which are larger than or equal to a preset temperature rise threshold value in the temperature rise indexes and determining a corresponding belonging set of the temperature rise indexes which are larger than or equal to the preset temperature rise threshold value;
the abnormal loop determining module is used for determining an abnormal loop according to the corresponding set of the temperature rise indexes which are larger than or equal to the preset temperature rise threshold value;
and the adjusting instruction module is used for judging whether the number of LEDs in the abnormal loop is more than or equal to 2, and if the number of LEDs in the abnormal loop is less than 2, adjusting the power supply of the abnormal loop through the circuit driving power supply according to the feedback adjusting instruction.
Further, the embodiment of the application further comprises:
and the single feedback adjustment module is used for acquiring a single feedback adjustment instruction based on the abnormal node and adjusting the power supply of the abnormal node based on the single feedback adjustment instruction.
Further, the embodiment of the application further comprises:
the temperature sensitivity determining module is used for determining the temperature sensitivity of the components of each loop according to the information formed by the components, wherein the temperature sensitivity of the components represents the sensitivity of the components for power change under the temperature rise condition;
And the temperature rise threshold determining module is used for carrying out loop power load analysis according to the temperature sensitivity of the components to obtain an equilibrium temperature rise threshold under the condition of loop load equilibrium, and outputting the equilibrium temperature rise threshold as a preset temperature rise threshold.
Further, the embodiment of the application further comprises:
the connection mode acquisition module is used for acquiring the connection mode of the LEDs in the abnormal loops according to the circuit connection mode if the number of the abnormal loops is more than or equal to 2;
the adjusting parameter determining module is used for determining a power supply adjusting parameter according to the connection mode of the LEDs and adjusting the power supply of the abnormal node according to the power supply adjusting parameter.
Further, the embodiment of the application further comprises:
the feedback control terminal module is used for inputting abnormal loop feedback information into a control terminal of the circuit driving power supply, wherein the abnormal loop feedback information comprises a temperature rise difference, and Wen Shengcha is the difference between the temperature rise index of an abnormal node and a corresponding preset temperature rise threshold value;
a protection control parameter module for outputting protection control parameters according to the response of the control terminal of the circuit driving power supply to the Wen Shengcha compensation function,
And the compensation function module is an objective function built by taking the minimized temperature rise difference as a target and taking the power supply adjusting parameter as a variable.
In this description, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the foregoing method and specific example for intelligently detecting and adjusting an operating state of an LED driving power supply in the first embodiment of fig. 1 are also applicable to an intelligent detecting and adjusting system for an operating state of an LED driving power supply in this embodiment, and by the foregoing detailed description of the foregoing method for intelligently detecting and adjusting an operating state of an LED driving power supply, those skilled in the art can clearly know that an intelligent detecting and adjusting system for an operating state of an LED driving power supply in this embodiment, so for brevity of description, reference will only be made to the description of a method section for the relevant points.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The intelligent detection and adjustment method for the running state of the LED driving power supply is characterized by being applied to an LED power supply detection system, wherein the system is in communication connection with a data detection device, and the method comprises the following steps:
acquiring information of a first LED circuit, wherein the information of the first LED circuit comprises component components, LED distribution positions, a circuit driving power supply and a circuit connection relation;
determining a plurality of detection nodes according to the information of the LED distribution positions;
carrying out temperature rise protection analysis on each loop according to the component composition, and respectively configuring preset temperature rise thresholds for protecting each loop;
transmitting the plurality of detection nodes to the data detection device, detecting the first LED circuit based on the data detection device, and outputting a plurality of detection data sets, wherein each detection data set corresponds to one detection node;
the temperature rise identification is carried out on the plurality of detection data sets, and a plurality of temperature rise indexes corresponding to the plurality of detection nodes are output;
identifying and judging loops where the temperature rise indexes are located according to the preset temperature rise threshold value, and acquiring abnormal loop feedback information;
And inputting the abnormal loop feedback information into a control terminal of the circuit driving power supply, and outputting protection control parameters.
2. The method of claim 1, wherein the method further comprises:
judging whether the circuit driving power supply is a constant voltage source or not according to the parameter configuration of the circuit driving power supply, and if so, judging whether the circuit driving power supply is a constant voltage source;
loop identification is carried out on the plurality of detection nodes, nodes belonging to the same loop are collected, and a plurality of collection nodes are output;
and classifying the plurality of detection data sets according to the plurality of collection nodes, and outputting a plurality of detection data sets, wherein the plurality of detection data sets are in one-to-one correspondence with the plurality of collection nodes.
3. The method of claim 2, wherein the loop in which the plurality of temperature rise indices are located is identified and determined according to the preset temperature rise threshold, the method further comprising:
acquiring a temperature rise index which is larger than or equal to the preset temperature rise threshold value in the plurality of temperature rise indexes, and determining a corresponding belonging set of the temperature rise indexes which is larger than or equal to the preset temperature rise threshold value;
determining an abnormal loop according to the corresponding set of the temperature rise indexes which are larger than or equal to the preset temperature rise threshold value;
Judging whether the number of LEDs in the abnormal loop is more than or equal to 2, and if the number of LEDs in the abnormal loop is less than 2, adjusting the power supply of the abnormal loop through the circuit driving power supply according to a feedback adjusting instruction.
4. The method of claim 3, wherein if the number of the abnormal loops is greater than or equal to 2, determining an abnormal node according to a temperature rise index greater than or equal to the preset temperature rise threshold, wherein the abnormal node corresponds to an LED;
and acquiring a single feedback adjustment instruction based on the abnormal node, and adjusting the power supply of the abnormal node based on the single feedback adjustment instruction.
5. The method of claim 1, wherein the temperature rise protection analysis is performed for each circuit based on the component composition, the method further comprising:
determining the temperature sensitivity of the components of each loop according to the information formed by the components, wherein the temperature sensitivity of the components represents the sensitivity of the components for power change under the temperature rise condition;
and carrying out loop power load analysis according to the temperature sensitivity of the components to obtain an equilibrium temperature rise threshold under the condition of loop load balancing, and outputting the equilibrium temperature rise threshold as a preset temperature rise threshold.
6. The method of claim 4, wherein the method further comprises:
if the number of the abnormal loops is more than or equal to 2, acquiring the connection mode of the LEDs in the abnormal loops according to the circuit connection mode;
and determining a power supply adjusting parameter according to the connection mode of the LEDs, and adjusting the power supply of the abnormal node according to the power supply adjusting parameter.
7. The method of claim 1, wherein the abnormal loop feedback information is input to a control terminal of the circuit driving power supply, and a protection control parameter is output, the method further comprising:
inputting the abnormal loop feedback information into a control terminal of the circuit driving power supply, wherein the abnormal loop feedback information comprises a temperature rise difference, and the temperature rise difference is the difference between a temperature rise index of an abnormal node and a corresponding preset temperature rise threshold value;
outputting the protection control parameters according to the response of the control terminal of the circuit driving power supply to the temperature rise difference compensation function,
the compensation function is an objective function built by taking the temperature rise difference minimization as a target and taking the power supply adjusting parameter as a variable.
8. An intelligent detection and adjustment system for the running state of an LED driving power supply, which is characterized by comprising:
The circuit information acquisition module is used for acquiring information of a first LED circuit, wherein the information of the first LED circuit comprises component components, LED distribution positions, a circuit driving power supply and a circuit connection relation;
the detection node determining module is used for determining a plurality of detection nodes according to the information of the LED distribution positions;
the temperature rise protection analysis module is used for carrying out temperature rise protection analysis on each loop according to the component composition and is respectively configured with a preset temperature rise threshold value for protecting each loop;
the circuit data detection module is used for sending the detection nodes to the data detection device, detecting the first LED circuit based on the data detection device and outputting a plurality of detection data sets, wherein each detection data set corresponds to one detection node;
the temperature rise index acquisition module is used for identifying the temperature rise of the plurality of detection data sets and outputting a plurality of temperature rise indexes corresponding to the plurality of detection nodes;
The loop identification judging module is used for carrying out identification judgment on loops where the temperature rise indexes are located according to the preset temperature rise threshold value, and obtaining abnormal loop feedback information;
and the protection control parameter module is used for inputting the feedback information of the abnormal loop into the control terminal of the circuit driving power supply and outputting protection control parameters.
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