A method and system for optimizing light output uniformity of an optoelectronic coupling structure

Abstract

This invention relates to the field of optoelectronic control systems and discloses a method and system for optimizing the uniformity of light output in an optocoupler structure. The method involves applying controlled perturbations to the optocoupler structure's operating state, collecting light output response data from multiple spatial regions during the perturbation application and removal phases, constructing response behavior curves for each spatial region, and extracting hysteresis characteristic parameters characterizing differences in response behavior. Based on these hysteresis characteristic parameters, consistency judgment conditions are generated to identify target spatial regions with hysteresis characteristic differences. Parameter adjustment values ​​are then generated for these target spatial regions and mapped to adjustable operating parameters, forming an iterative closed-loop control process. The system includes a perturbation control module, a light output acquisition module, a response behavior construction module, a hysteresis characteristic analysis module, a consistency judgment module, and a parameter adjustment and mapping module, which collaboratively implement the above method steps.

Description

Technical Field

[0001] This invention relates to the field of optoelectronic control systems, and in particular to a method and system for optimizing the uniformity of light output in an optocoupler structure. Background Technology

[0002] Optocouplers are widely used in optical detection, imaging, sensing, and photoelectric conversion. They typically include a light source, optical coupling components, and optoelectronic sensing components, used to stably and efficiently couple optical signals and convert them into electrical signals. In practical applications, light output uniformity is one of the important indicators for evaluating the performance of optocouplers. Insufficient light output uniformity will directly affect signal stability, measurement accuracy, and system reliability.

[0003] In existing technologies, the following techniques are typically used to improve the uniformity of light output in optocoupler structures:

[0004] One approach is to improve the consistency of light distribution in space by optimizing optical structure parameters or introducing diffusion and shaping optical elements.

[0005] Another approach is to reduce the spatial variation in light output intensity by statically or dynamically adjusting the light source driving parameters, gain parameters, or optical compensation parameters.

[0006] However, the aforementioned existing technologies primarily adjust the light output itself, and their optimization is usually based on the light intensity distribution characteristics at a certain moment or in a steady state. These schemes assume that light output non-uniformity mainly originates from deviations in optical structure design or parameter settings, failing to effectively distinguish the sources of behavioral differences in light output non-uniformity during dynamic operation.

[0007] In practical applications, optocoupler structures may be affected by factors such as assembly stress, interface constraints, and changes in material state during operation. The light output in different regions may exhibit different response paths, recovery processes, or change delay characteristics when parameters change or operating states switch. Existing technologies typically only compensate for the uniformity of steady-state light output and cannot identify whether the non-uniformity of light output originates from differences in the response behavior of different regions to changes in operating states. This can easily lead to over-adjustment or mis-adjustment, or even introduce new non-uniformity problems after multiple adjustments.

[0008] Therefore, existing technologies lack a technical solution that can distinguish the sources of uneven light output in different regions by analyzing the response behavior characteristics of light output during dynamic disturbances without relying on changes to the optical structure or direct measurement of internal stress, and implement targeted optimization accordingly. Summary of the Invention

[0009] The first objective of this invention is to provide a method for optimizing the uniformity of light output in an optocoupler structure. This method has the advantage of being able to distinguish the sources of uneven light output in different regions by analyzing the response behavior characteristics of light output during dynamic disturbances, without relying on changes to the optical structure or direct measurement of internal stress, and thereby implementing targeted optimization accordingly.

[0010] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0011] A method for optimizing the uniformity of light output in an optocoupler structure includes the following steps:

[0012] S1: When the optocoupler structure is in a preset working state, at least one controlled working state disturbance is applied to the optocoupler structure. The working state disturbance is limited to parameter changes that do not cause changes in the structural morphology or optical path structure of the optocoupler structure.

[0013] S2: During the application and removal phases of the disturbance in the working state, light output response data corresponding to multiple predetermined spatial regions in the optocoupler structure are collected according to a preset time sampling rule.

[0014] S3: For each of the aforementioned spatial regions, based on the corresponding optical output response data, construct a response behavior curve characterizing the spatial region during the disturbance application phase and the disturbance removal phase in the working state;

[0015] S4: Compare and analyze the response behavior curves corresponding to different spatial regions, and extract hysteresis characteristic parameters to characterize the differences in response behavior of each spatial region. The hysteresis characteristic parameters include at least one of the following: response path offset, response time offset, or inter-stage change difference parameters between the disturbance application stage and the disturbance removal stage.

[0016] S5: Based on the hysteresis feature parameters, classify and label each spatial region to determine the target spatial region where the hysteresis feature parameters deviate from the preset consistency judgment condition;

[0017] S6: For the target spatial region, generate the corresponding parameter adjustment amount based on its corresponding hysteresis characteristic parameters, and map the parameter adjustment amount to the adjustable operating parameters of the optocoupler structure;

[0018] S7: Adjust the adjustable working parameters according to the parameter adjustment amount, and repeat steps S2 to S6 after the adjustment is completed until the hysteresis characteristic parameters of the target spatial region meet the consistency judgment condition.

[0019] Further configuration: The working state disturbance in step S1 includes multiple parameter change operations applied within a preset disturbance period, wherein the parameter changes in adjacent disturbance periods are set to be asymmetric in at least one of the change direction, change order or change duration, so that the optocoupler structure forms different response behavior paths corresponding to the disturbance application stage and the disturbance removal stage.

[0020] By adopting the above technical solution, the asymmetric perturbation configuration can break the approximately symmetrical behavior of the light output response under a single perturbation mode, so that the optocoupler structure forms a differentiated response behavior path in the perturbation application stage and the perturbation removal stage, thereby improving the explicitness of the system's response behavior differences in different spatial regions and improving the basis for subsequent hysteresis characteristic parameter analysis.

[0021] Further configuration: In adjacent disturbance cycles, the parameter changes are set to be asymmetric, and are updated at least in part based on the distribution of hysteresis characteristic parameters corresponding to each spatial region in the previous disturbance cycle. When updating the parameter changes, the relative deviation of the hysteresis characteristic parameters in different spatial regions and the difference in the changes of the hysteresis characteristic parameters during the disturbance application phase and the disturbance removal phase are combined to configure the parameter changes in subsequent disturbance cycles in terms of change direction, change order, or change duration.

[0022] By adopting the above technical solution, the asymmetric parameter changes are updated in adjacent disturbance cycles, and the update is at least partially based on the distribution of hysteresis characteristic parameters in each spatial region in the previous disturbance cycle. This allows the disturbance control process to be no longer limited to a fixed configuration, but to be adjusted according to the changes in the actual response behavior of the optocoupler structure.

[0023] The perturbation update mechanism based on the distribution of hysteresis feature parameters keeps the parameter changes in subsequent perturbation cycles correlated with the identified differences in response behavior, thereby improving the adaptability of the perturbation process to the response characteristics of different spatial regions and avoiding insufficient coverage of response behavior features due to a single perturbation mode. This is beneficial to improving the stability and effectiveness of hysteresis feature analysis in multi-cycle operation.

[0024] Further configuration: The consistency determination condition in step S5 is generated based on the distribution state of the hysteresis characteristic parameters formed by the optocoupler structure in multiple disturbance cycles, wherein the consistency determination condition characterizes the degree of concentration of the hysteresis characteristic parameters in each spatial region under the current operating state.

[0025] By adopting the above technical solution, consistency judgment conditions are generated based on the distribution state of hysteresis characteristic parameters formed by the optocoupler structure in multiple disturbance cycles. This makes the consistency judgment no longer dependent on a fixed or preset judgment threshold, but dynamically adjusted according to the response behavior of the optocoupler structure during actual operation.

[0026] This determination method can reflect the concentration of hysteresis characteristic parameters in each spatial region under the current operating state, thereby improving the matching degree between the consistency determination result and the actual operating state of the system, and improving the reliability of identifying differences in hysteresis characteristics under different working conditions or operating stages.

[0027] Further settings: During the generation process, the consistency determination condition is adjusted in combination with the relative differences in the hysteresis characteristic parameters of each spatial region within multiple disturbance cycles. The consistency determination condition is updated synchronously with changes in the number of spatial regions, changes in the distribution relationship of hysteresis characteristic parameters between spatial regions, and changes in the hysteresis characteristic parameters during the evolution of the disturbance cycle.

[0028] By adopting the above technical solution, in the process of generating consistency determination conditions, the relative differences between the hysteresis characteristic parameters of each spatial region within multiple disturbance cycles are combined, and the consistency determination conditions are updated synchronously with the changes in the number of spatial regions, the changes in the distribution relationship of hysteresis characteristic parameters between spatial regions, and the changes in the hysteresis characteristic parameters during the evolution of the disturbance cycle. This enables the consistency determination mechanism to adapt to different combinations of spatial regions and their response behavior evolution process.

[0029] The above configuration helps to maintain the effectiveness and stability of consistency judgment conditions when the number of spatial regions changes or the response relationship between regions changes, thereby improving the system's ability to adapt to differences in hysteresis characteristics in multi-region, dynamic operating scenarios.

[0030] Further configuration: The parameter adjustment mapping process in step S6 includes the constraint configuration of the parameter influence range, so that when the parameter adjustment amount generated for the target spatial region acts on the adjustable working parameter, its influence on the corresponding hysteresis characteristic parameter of the non-target spatial region is kept within a preset allowable range.

[0031] By adopting the above technical solution, and by introducing parameter influence range constraint configuration based on spatial region correlation in the parameter adjustment and mapping module, the parameter adjustment amount generated for the target spatial region is mapped to the adjustable working parameter, and its influence on different spatial regions is limited to their respective allowable ranges.

[0032] The decoupled parameter mapping mechanism in this region can effectively avoid the disordered propagation of the adjustment effect between spatial regions during the parameter adjustment process, thereby improving the targeting of parameter adjustment operations and enhancing the controllability and stability of the optical output control process under the condition of multiple spatial regions coexisting.

[0033] Further configuration: The constraint configuration of the parameter influence range sets influence suppression rules based on the correlation between spatial regions. When performing parameter adjustment mapping, the propagation path of the parameter adjustment amount between different spatial regions is distinguished and processed so that when the parameter adjustment amount acts on the adjustable working parameter, the hysteresis characteristic parameter changes caused in different spatial regions are kept within the corresponding allowable range.

[0034] By adopting the above technical solution, influence suppression rules are set based on the correlation between spatial regions, and the propagation path of parameter adjustment amount between different spatial regions is distinguished when performing parameter adjustment amount mapping, so that parameter adjustment behavior has clear propagation path constraints at the system level.

[0035] This propagation path suppression rule can reduce mutual interference between different spatial regions during parameter adjustment, thereby improving the consistency of parameter adjustment under complex spatial distribution conditions and enhancing the operational stability of the system in multi-region optical output control scenarios.

[0036] In summary, the present invention has the following beneficial effects:

[0037] The optical output uniformity optimization method proposed in this application forms a different technical path from the prior art by introducing an optical output response behavior analysis mechanism under controlled perturbation conditions. By transforming the optical output uniformity optimization process from a single adjustment based on steady-state results to a consistent closed-loop control process based on dynamic perturbation response behavior characteristics, the optical output uniformity optimization has a determinable, distinguishable, and iterative engineering implementation path. It achieves effective constraint on the optical output adjustment process of the optocoupler structure without relying on changes to the optical structure or direct measurement of the internal state.

[0038] Through steps S1 to S4, without changing the structural form and optical path of the optocoupler, a controlled working state perturbation is applied to the optocoupler. During the perturbation application and removal phases, light output response data from multiple spatial regions are collected to construct corresponding response behavior curves. This allows the response path, response time characteristics, and inter-stage variation characteristics of light output during dynamic perturbation to be fully characterized. The analysis basis for non-uniform light output is expanded from a single steady-state light output result to response behavior characteristics based on dynamic perturbation processes, thus providing a data foundation for distinguishing the behavioral differences of different spatial regions during the working state change process.

[0039] Through steps S4 and S5, the response behavior curves of different spatial regions are compared and analyzed to extract hysteresis characteristic parameters such as response path offset, response time offset, or inter-stage variation difference parameters. Based on preset consistency judgment conditions, each spatial region is classified and labeled to identify the target spatial region where the hysteresis characteristic parameters deviate. This enables an objective judgment of the differences in hysteresis behavior of different spatial regions during the disturbance loading and removal process. It changes the basis for judging uneven light output from the absolute value of light output to the consistency judgment based on behavioral characteristic parameters, avoiding the risk of misjudgment caused by judging solely based on light intensity distribution.

[0040] Step S6 generates corresponding parameter adjustment values ​​only for the target spatial region and maps the parameter adjustment values ​​to the adjustable operating parameters of the optocoupler structure, thereby giving the parameter adjustment behavior a clear regional orientation; avoiding uniform or global parameter adjustment for spatial regions that do not show hysteresis characteristics, making the light output adjustment process regionally selective, and reducing the probability of introducing unnecessary parameter disturbances from the control level.

[0041] Step S7 involves repeating steps S2 to S6 after parameter adjustment is completed, and using whether the hysteresis characteristic parameter meets the consistency criterion as the basis for iteration termination, thus constructing a closed-loop control process based on response behavior consistency. This enables the light output uniformity optimization process to have a clear convergence criterion, avoids infinite loops or ineffective adjustments in the optimization process, and improves the operational stability of the optocoupler structure during multiple adjustment processes.

[0042] Another object of the present invention is to provide a system for optimizing the uniformity of light output in an optocoupler structure, the system comprising:

[0043] The disturbance control module is configured to apply a controlled working state disturbance to the optocoupler structure when the optocoupler structure is in a preset working state. The working state disturbance is limited to a range of parameter changes that do not cause changes in the structural morphology or optical path structure of the optocoupler structure.

[0044] The optical output acquisition module is configured to acquire optical output response data corresponding to multiple predetermined spatial regions in the optocoupler structure according to a preset time sampling rule during the application and removal phases of the working state disturbance.

[0045] The response behavior construction module is configured to construct response behavior curves characterizing each spatial region during the disturbance application and disturbance removal phases based on the light output response data corresponding to each spatial region.

[0046] The hysteresis feature analysis module is configured to compare and analyze the response behavior curves corresponding to different spatial regions and extract hysteresis feature parameters that characterize the differences in response behavior among spatial regions.

[0047] The consistency determination module is configured to classify and label each spatial region based on the hysteresis feature parameters, and determine the target spatial region whose hysteresis feature parameters deviate from the preset consistency determination conditions.

[0048] The parameter adjustment and mapping module is configured to generate corresponding parameter adjustment values ​​for the target spatial region and map the parameter adjustment values ​​to the adjustable operating parameters of the optocoupler structure.

[0049] By setting up a disturbance control module, a light output acquisition module, a response behavior construction module, a hysteresis feature analysis module, a consistency determination module, and a parameter adjustment and mapping module, a system-level processing architecture centered on the light output behavior of the optocoupler structure is constructed. This transforms the light output uniformity control process from a decentralized parameter adjustment operation into a systematic process with clear module division of labor and processing flow.

[0050] This system architecture enables continuous acquisition and analysis of the optical output response of the optocoupler during both the disturbance application and disturbance removal phases, thereby improving the integrity and feasibility of the optical output control process and enhancing the synergy between various processing stages during the optical output control process.

[0051] Further configuration: The disturbance control module is configured to apply multiple parameter change operations within a preset disturbance period, and to perform asymmetric configuration on at least one of the parameter changes in the direction of change, the order of change, or the duration of change in adjacent disturbance periods, wherein the asymmetric configuration is updated at least in part based on the distribution state of the hysteresis characteristic parameters corresponding to each spatial region in the previous disturbance period.

[0052] By adopting the above technical solution, multiple parameter change operations based on the disturbance cycle are introduced into the disturbance control module, and the direction, order, or duration of parameter changes are asymmetrically configured between adjacent disturbance cycles, so that the system forms a differentiated sequence of working state changes during operation. At the same time, the asymmetric configuration is updated in combination with the distribution state of hysteresis characteristic parameters, so that the disturbance process can better match the response behavior characteristics of different spatial regions in the optocoupler structure, thereby improving the system's ability to identify regional response differences and enhancing the adaptability of the disturbance control strategy in multi-regional scenarios.

[0053] Further configuration: The parameter adjustment and mapping module includes a parameter influence range constraint unit. The parameter influence range constraint unit sets influence suppression rules based on the correlation between spatial regions. When performing parameter adjustment mapping, it distinguishes and configures the propagation path of the parameter adjustment amount between different spatial regions so that when the parameter adjustment amount acts on the adjustable working parameter, the hysteresis characteristic parameter changes caused by it in different spatial regions are kept within the corresponding allowable range.

[0054] By adopting the above technical solution, by setting a parameter influence range constraint unit in the parameter adjustment and mapping module, and by distinguishing and configuring the propagation path of the parameter adjustment amount between different spatial regions based on the correlation between spatial regions, the parameter adjustment process has regional constraint characteristics. This configuration can avoid unnecessary mutual influence between different spatial regions during the parameter adjustment process, thereby improving the pertinence of parameter adjustment operation and improving the stability and consistency of the system in the multi-region optical output control process. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the system architecture of an embodiment;

[0056] Figure 2 This is a schematic diagram of the method flow of the embodiment. Detailed Implementation

[0057] The present invention will be further described in detail below with reference to the accompanying drawings.

[0058] Example: A system for optimizing the uniformity of light output in an optocoupler structure, such as... Figure 1 As shown, it includes a disturbance control module, a light output acquisition module, a response behavior construction module, a hysteresis characteristic analysis module, a consistency determination module, and a parameter adjustment and mapping module. The above modules are connected in sequence through a data bus or control interface to form a closed-loop processing structure around the light output response behavior.

[0059] When the system is running, the overall collaboration logic of each module is as follows:

[0060] The disturbance control module applies controlled operating state disturbances to the optocoupler structure; the light output acquisition module acquires light output data from multiple spatial regions during the disturbance application and removal phases; the response behavior construction module constructs response behavior curves for each spatial region based on the acquired data; the hysteresis feature analysis module extracts hysteresis feature parameters from the response behavior curves; the consistency determination module generates consistency determination conditions based on the hysteresis feature parameters and identifies the target spatial region; the parameter adjustment and mapping module generates parameter adjustment amounts for the target spatial region and maps them to adjustable operating parameters; the above processes are executed iteratively according to a preset strategy, constituting the closed-loop system operation logic.

[0061] By setting up a disturbance control module, a light output acquisition module, a response behavior construction module, a hysteresis feature analysis module, a consistency determination module, and a parameter adjustment and mapping module, a system-level processing architecture centered on the light output behavior of the optocoupler structure is constructed. This transforms the light output uniformity control process from a decentralized parameter adjustment operation into a systematic process with clear module division of labor and processing flow.

[0062] The disturbance control module is configured to apply a controlled working state disturbance to the optocoupler structure when the optocoupler structure is in a preset working state. The working state disturbance is limited to a range of parameter changes that do not cause changes in the structural morphology or optical path structure of the optocoupler structure.

[0063] In this embodiment, the operating state disturbance refers to applying a controlled change to at least one adjustable operating parameter that affects the light output state without altering the physical assembly state and optical path structure of the optocoupler. The adjustable operating parameter can be selected according to the specific application of the optocoupler, and in different implementations may include, but is not limited to, one or more of the following parameter types.

[0064] In one embodiment, the operating state perturbation affects electrical drive parameters, such as the light source drive current, drive voltage, or bias parameters related to the operating point of the optoelectronic device. By varying the amplitude or step changes of the electrical drive parameters during the perturbation period, the optocoupler structure is made to operate under different drive conditions, thereby inducing differences in light output response in different spatial regions.

[0065] In another implementation, the operating state disturbance is applied to control parameters, such as the operating mode parameters of the optoelectronic system, sampling timing parameters, or reference value parameters in the control loop. By switching different control parameter configurations during different disturbance periods, the optocoupler structure transitions between different operating states to simulate the state switching process that may occur during actual operation.

[0066] In a further embodiment, the operating state disturbance can also be applied to operating parameters related to thermal state. For example, by changing the device's duty cycle, operating rhythm, or heat dissipation control parameters, the optocoupler structure can undergo different thermal load changes during the disturbance period, thereby introducing changes in light output response related to factors such as assembly stress and material thermal expansion.

[0067] Specifically, the disturbance control module includes:

[0068] The disturbance parameter generation unit is used to generate a set of parameter changes applied in each disturbance cycle, wherein the parameter changes are selected from the adjustable operating parameters of the optocoupler structure.

[0069] The disturbance cycle management unit is used to manage the parameter change relationship between adjacent disturbance cycles, so that the parameter changes in adjacent disturbance cycles differ in at least one of the following: change direction, change sequence, or change duration.

[0070] The disturbance execution unit is used to apply the parameter changes to the optocoupler structure and synchronize with the light output acquisition module in time, marking the disturbance application stage and the disturbance removal stage.

[0071] Regarding the configuration of the perturbation period, this embodiment employs an asymmetric perturbation method to distinguish between adjacent perturbation periods. The asymmetric perturbation does not merely refer to differences in perturbation amplitude, but rather to differences in at least one dimension of parameter variation between adjacent perturbation periods. Specifically, the asymmetric perturbation can be implemented through one or more of the following methods.

[0072] In one implementation, adjacent perturbation cycles differ in the direction of parameter change. For example, in the first perturbation cycle, a certain adjustable operating parameter is changed by first increasing and then decreasing, while in adjacent perturbation cycles, the same parameter is changed by first decreasing and then increasing, thus creating directional asymmetry in the parameter change path of the optocoupler structure.

[0073] In another implementation, the order of parameter changes differs between adjacent perturbation periods. For example, within one perturbation period, the first adjustable parameter is changed first, followed by the second adjustable parameter; however, in adjacent perturbation periods, the execution order of these parameter changes is altered, changing the temporal relationship between the different parameter changes, thus forming an asymmetric perturbation at the sequence level.

[0074] In a further implementation, the duration of parameter changes differs between adjacent perturbation periods. For example, within one perturbation period, the parameter change lasts for a shorter duration, while in adjacent perturbation periods, the parameter change lasts for a longer duration, causing the optocoupler structure to experience different steady-state or quasi-steady-state dwell processes in different periods.

[0075] Furthermore, in some implementations, the above-mentioned multiple asymmetric implementation methods can be combined and configured so that adjacent perturbation periods differ in at least two of the parameter change direction, change order, and change duration, thereby enhancing the excitation effect of the perturbation process on the differences in light output response in different spatial regions.

[0076] By setting the operating state disturbance parameters and their asymmetric configuration as described above, the optocoupler structure undergoes diverse operating state changes during continuous disturbance cycles, thereby providing a more discriminative response information basis for subsequent consistency determination and parameter adjustment based on response behavior analysis.

[0077] In this embodiment, the disturbance control module is used to apply controlled operating state disturbances to the optocoupler structure during system operation. The system assumes that the optocoupler structure has M adjustable operating parameters, and at the beginning of the k-th disturbance period, its parameter state can be represented as a parameter vector:

[0078] ;

[0079] Where k represents the disturbance period number, and M represents the number of adjustable operating parameters. This indicates the value of the Mth parameter at the start of the kth disturbance period.

[0080] Within each disturbance cycle, the disturbance control module performs multiple parameter change operations. Assuming that L parameter change operations are performed in the k-th disturbance cycle, the parameter change vector corresponding to the l-th operation can be expressed as:

[0081] ;

[0082] in, This represents the change applied to the M-th parameter by the l-th operation within the k-th perturbation period. The parameter state is updated discretely within the perturbation period, and the update relationship is as follows:

[0083] ;

[0084] in, This represents the initial parameter state during the k-th disturbance period.

[0085] To achieve asymmetric perturbation configuration between adjacent perturbation cycles, the perturbation control module introduces an adjacent cycle asymmetry index when generating the parameter change sequence for the (k+1)th perturbation cycle. Let... As a symmetric reference mapping operator, used to represent a reference sequence that maintains a symmetric relationship with the parameter change sequence of the previous period in terms of direction, order, and duration, the asymmetry between adjacent periods can be expressed as:

[0086] ;

[0087] in, Let represent the L2 norm. When When the value is not zero, it indicates that there is a difference in at least one of the parameter change direction, sequence, or duration between adjacent disturbance periods, thus forming an asymmetric disturbance configuration.

[0088] The optical output acquisition module is configured to acquire optical output response data corresponding to multiple predetermined spatial regions in the optocoupler structure according to a preset time sampling rule during the application and removal phases of the working state disturbance; it includes: a spatial region division unit; an optical output sampling unit; and a time synchronization unit.

[0089] The spatial region division unit is used to divide the light output region of the optocoupler structure into multiple predetermined spatial regions;

[0090] In this embodiment, the spatial region division unit is used to regionalize the light output area of ​​the optocoupler structure, so that the light output response behavior at different spatial locations can be independently collected and analyzed subsequently. The spatial region division does not rely on the physical segmentation of the optocoupler structure, but is a logical division of the light output area based on the light output distribution characteristics, detection requirements, and system configuration.

[0091] Specifically, in one implementation, the spatial region division unit regularly divides the light output region according to the geometric layout of the optocoupler structure or the light output coverage. For example, the light output region is divided according to a preset row and column grid, so that each spatial region corresponds to a sub-region of the light output region, thereby forming multiple regional units with clear spatial positional relationships. In this way, while maintaining the consistency of the region division rules, the zonal acquisition of the spatial distribution of light output can be achieved.

[0092] In another implementation, the spatial region division unit divides the region based on the arrangement of the light output detection devices. For example, when the light output is collected by multiple detection units or sensor pixel arrays, the light output range corresponding to each detection unit or pixel group can be defined as a spatial region, so that the spatial region corresponds one-to-one with the actual sampling position, thereby simplifying the mapping relationship between light output data and spatial regions.

[0093] In a further embodiment, the spatial region division unit can also divide the region based on the initial distribution state of the light output. Specifically, during the initial operation or calibration phase of the system, the spatial region division unit collects the light output distribution once or multiple times, and divides the light output region into several spatial regions with similar initial characteristics based on the light output intensity distribution, gradient change, or stability characteristics. In this way, the light output response characteristics within the same region can have higher consistency.

[0094] In some implementations, the spatial region division unit can also be used to divide the region based on the assembly structure or stress distribution characteristics. For example, based on different assembly positions, fixed point distributions, or material connection positions in the optocoupler structure, the light output region can be divided into spatial regions associated with the potential assembly stress distribution, making it easier for subsequent light output response analysis to reflect the influence of assembly stress on light output behavior.

[0095] In any of the above-mentioned partitioning methods, the spatial region partitioning unit assigns a corresponding region identifier to each spatial region and establishes a correspondence between the region identifier and the light output sampling position to guide the light output acquisition module to independently sample each spatial region. The number and size of the spatial regions can be configured according to the actual application scenario of the optocoupler structure and can remain fixed or be adjusted in different implementations.

[0096] The optical output sampling unit is used to collect optical output data of each spatial region according to a preset sampling rule during the disturbance application and disturbance removal phases.

[0097] The time synchronization unit is used to perform time alignment processing on optical output data from different spatial regions.

[0098] The response behavior construction module is configured to construct response behavior curves representing the perturbation application and removal phases of each spatial region based on the light output response data corresponding to each spatial region; it includes: a phase identification unit; and a behavior curve construction unit.

[0099] The stage identification unit is used to identify the disturbance application stage or disturbance removal stage corresponding to the optical output data;

[0100] The behavior curve construction unit is used to combine the light output time series of each spatial region according to the stage division results to construct the response behavior curve of each spatial region.

[0101] The hysteresis feature analysis module is configured to compare and analyze the response behavior curves corresponding to different spatial regions and extract hysteresis feature parameters that characterize the differences in response behavior among spatial regions; it includes: path offset calculation unit; time offset calculation unit; and stage difference analysis unit.

[0102] The path offset calculation unit is used to calculate the difference in response paths for each spatial region during the disturbance application and disturbance removal phases;

[0103] The time offset calculation unit is used to calculate the time difference of corresponding feature points in each spatial region at different stages;

[0104] The stage difference analysis unit is used to perform combined analysis of path offset and time offset to form hysteresis characteristic parameters that characterize the differences in response behavior in each spatial region.

[0105] In this embodiment, the hysteresis characteristic parameter refers to a characteristic parameter used to characterize the differences in the light output response behavior of the same spatial region in terms of change path, change rhythm, or recovery process during different working states. The hysteresis characteristic parameter is not directly derived from the light output value at a single moment, but is obtained by comparing and analyzing the light output response process during the disturbance application stage and the disturbance removal stage.

[0106] Specifically, after completing the optical output acquisition and time synchronization processing, the system first divides the optical output response data of each spatial region into data segments corresponding to the disturbance application stage and data segments corresponding to the disturbance removal stage, based on the stage marker information provided by the disturbance control module. Subsequently, the response behavior construction module constructs corresponding response behavior representations based on the data segments of the above two stages, which are used to reflect the dynamic changes of optical output during parameter changes.

[0107] Based on this, the hysteresis feature analysis module extracts hysteresis feature parameters to characterize the difference in response between the disturbance application stage and the disturbance removal stage by comparing the response behavior representations of the two stages. In one implementation, the hysteresis feature parameters can be extracted based on the overall difference in the two-stage light output change process. For example, by comparing the overall light output change curves of the disturbance application stage and the disturbance removal stage, parameters reflecting the difference in the magnitude or process of light output change between the two stages can be obtained.

[0108] In another implementation, the hysteresis feature parameters can be extracted based on key temporal features during the change in light output. For example, the time positions in the disturbance application phase and the disturbance removal phase where the light output reaches a specific change level or extreme state can be identified, and the hysteresis feature parameters reflecting response delay or recovery lag can be obtained by comparing the differences between the corresponding time positions in the two phases.

[0109] In a further implementation, the hysteresis feature parameters can also be extracted based on the difference in response paths between the disturbance application stage and the disturbance removal stage. For example, by comparing the light output change paths experienced by the same spatial region during parameter change and parameter recovery, it can be identified whether there is offset, insufficient overlap, or backhaul difference between the two stages, and this difference can be characterized as part of the hysteresis feature parameters.

[0110] During the extraction process described above, the system can generate corresponding sets of hysteresis feature parameters for different spatial regions, ensuring that each spatial region has an independent description of hysteresis features. These sets of hysteresis feature parameters may include one or more parameter items that reflect differences in response behavior, and serve as input for spatial region response state analysis during subsequent consistency determination.

[0111] The hysteresis characteristic parameters extracted by the above method can comprehensively reflect the differences in response speed, response path and recovery characteristics of different spatial regions of the optocoupler structure during parameter changes and state switching, thus providing a reliable data basis for subsequent uniformity determination and parameter adjustment based on hysteresis characteristic parameters.

[0112] The consistency determination module is configured to classify and label each spatial region based on the hysteresis feature parameters, and determine the target spatial region whose hysteresis feature parameters deviate from the preset consistency determination conditions; it includes: a distribution statistics unit; a consistency condition generation unit; and a target region determination unit.

[0113] The distributed statistical unit is used for statistical analysis of the hysteresis characteristic parameters of each spatial region;

[0114] The consistency condition generation unit is used to generate consistency judgment conditions based on statistical distribution results, and to update the judgment conditions as the disturbance period evolves;

[0115] The target region determination unit is used to compare the hysteresis characteristic parameters of each spatial region with the consistency determination conditions to identify the target spatial region.

[0116] In this embodiment, the consistency determination condition is used to determine whether the optical output response state of each spatial region is within an acceptable consistency range, thereby providing a basis for the subsequent determination of the target spatial region. The consistency determination condition is not a fixed threshold, but is dynamically generated based on the distribution state of the hysteresis characteristic parameters of each spatial region within the current disturbance period.

[0117] Specifically, after extracting the hysteresis characteristic parameters of each spatial region, the consistency determination module first summarizes and analyzes the hysteresis characteristic parameters of all spatial regions to form a distribution description reflecting the overall response state. In one implementation, the consistency determination module generates consistency determination conditions based on the concentration of the hysteresis characteristic parameters of each spatial region. For example, when the hysteresis characteristic parameters of most spatial regions are distributed within a relatively concentrated range, this concentrated range is used as the reference consistency interval under the current disturbance period, and this interval is used as the basis for the consistency determination conditions.

[0118] In another implementation, the consistency determination module generates consistency determination conditions based on the dispersion of hysteresis characteristic parameters. Specifically, by analyzing the deviation of hysteresis characteristic parameters of each spatial region from the overall distribution center, a determination boundary is determined to distinguish between normal and abnormal response regions, and this determination boundary is used as the consistency determination condition. When the hysteresis characteristic parameters of a certain spatial region exceed the determination boundary, that spatial region is considered a candidate region requiring further regulation.

[0119] In a further implementation, the consistency determination criteria can also be generated by combining the changing trends between disturbance cycles. For example, the distribution trends of hysteresis characteristic parameters are compared over multiple consecutive disturbance cycles. When the overall distribution state tends to be stable, the consistency determination criteria are tightened accordingly; when the overall distribution state changes significantly, the consistency determination criteria are relaxed accordingly to adapt to changes in the system's operating state.

[0120] The parameter adjustment and mapping module is configured to generate corresponding parameter adjustment values ​​for the target spatial region and map the parameter adjustment values ​​to the adjustable operating parameters of the optocoupler structure; it includes: a parameter adjustment value generation unit; an influence range constraint unit; and a parameter mapping execution unit.

[0121] The parameter adjustment generation unit is used to generate parameter adjustment based on the hysteresis characteristic parameters corresponding to the target spatial region.

[0122] The influence range constraint unit is used to constrain the range of influence of parameter adjustment based on the correlation between spatial regions;

[0123] The parameter mapping execution unit is used to map the constrained parameter adjustment amount to the adjustable operating parameters of the optocoupler structure and to feed back the current parameter status to the disturbance control module.

[0124] In this embodiment, the mapping rule for parameter adjustment amounts is to convert the parameter adjustment amounts generated for the target spatial region into adjustable operating parameter update instructions that can be directly applied to the optocoupler structure. The mapping rule is not a simple one-to-one correspondence, but rather configured by combining the physical meaning, range of action, and correlation between spatial regions of the adjustable operating parameters.

[0125] Specifically, after obtaining the parameter adjustment amount for the target spatial region, the parameter adjustment and mapping module first performs parameter dimension matching processing on the parameter adjustment amount. The dimension matching processing is used to determine the type of adjustable working parameter corresponding to each parameter adjustment amount, so that the generated adjustment amount can be mapped to the actual existing and controllable set of working parameters.

[0126] In one implementation, the parameter adjustment amounts are mapped according to a preset parameter mapping table. This parameter mapping table defines the correspondence between hysteresis characteristic parameters and adjustable operating parameters. For example, it maps adjustment amounts reflecting response delay characteristics to operating parameters related to response speed, and mapping adjustment amounts reflecting response amplitude differences to operating parameters related to output intensity. In this way, different types of hysteresis characteristic differences are applied to operating parameters that match their physical meaning.

[0127] After completing parameter type matching, the parameter adjustment and mapping module performs amplitude constraint processing on the parameter adjustment amount. This amplitude constraint processing limits the range of change in a single parameter update, ensuring the continuity and controllability of the parameter update process. The amplitude constraint can be configured based on preset parameter change upper limits, parameter change ratios, or historical parameter change records, thereby avoiding abrupt changes during parameter adjustment.

[0128] Subsequently, the parameter adjustment and mapping module configures the mode of action of the parameter adjustment amount according to the spatial region correlation. In one embodiment, when the correlation strength between the target spatial region corresponding to the parameter adjustment amount and other spatial regions is low, the parameter adjustment amount acts on the corresponding adjustable working parameter in a direct mapping manner; while when there is a strong correlation between the target spatial region and other spatial regions, the parameter adjustment amount acts on the adjustable working parameter in a decay mapping or allocation mapping manner to limit the impact of parameter adjustment on non-target spatial regions.

[0129] In a further embodiment, when multiple target spatial regions exist, the parameter adjustment and mapping module performs a synthesis process on the parameter adjustment amounts from different target spatial regions. This synthesis process can be configured based on the degree of deviation of the target spatial regions, the magnitude of differences in hysteresis characteristics, or the priority of the spatial regions, thereby generating a comprehensive adjustment amount for updating the adjustable operating parameters.

[0130] After completing the above mapping and synthesis processes, the parameter adjustment and mapping module converts the comprehensive adjustment value into a corresponding parameter update command, which is then applied to the adjustable operating parameters of the optocoupler structure, causing the optocoupler structure to enter a new operating state. After the parameter update is completed, the system enters the next disturbance cycle and continues to perform the optical output response acquisition and analysis process based on the updated parameter state.

[0131] In this embodiment, a method for optimizing the uniformity of light output in an optocoupler structure is also provided. This method is executed with the support of the aforementioned light output uniformity optimization system. This method introduces controlled perturbations during the operation of the optocoupler structure and analyzes and adjusts the light output response behavior before and after the perturbation, thereby achieving control over the light output state in multiple spatial regions.

[0132] Specifically, such as Figure 2 As shown, the method includes the following steps:

[0133] First, in step S1, the current operating state information of the optocoupler structure is obtained, and the set of adjustable operating parameters participating in this regulation is determined. The adjustable operating parameters may be electrical parameters, driving parameters, or control parameters related to the operating state of the optocoupler structure, and are used as the objects of subsequent disturbance application and parameter adjustment.

[0134] Subsequently, in step S2, while maintaining the overall structure of the optocoupler and the optical path structure unchanged, a controlled perturbation is applied to the adjustable operating parameters. The controlled perturbation is executed according to a preset perturbation cycle. In each perturbation cycle, the adjustable operating parameters are changed at least once, and at least one of the directions, sequences, or durations of the parameter changes differs between adjacent perturbation cycles, thereby forming a perturbation process that is distinct during the cycle.

[0135] In step S3, the light output of the optocoupler structure is collected during both the perturbation application and removal processes. During collection, the light output area is divided into multiple spatial regions, and light output response data for each spatial region is collected during both the perturbation application and removal phases. Simultaneously, the light output data from different spatial regions are time-synchronized to ensure that subsequent analysis is based on a unified time reference.

[0136] Next, in step S4, based on the collected light output response data, a representation of the response behavior of each spatial region under the disturbance application stage and the disturbance removal stage is constructed. By comparing the light output change process under different stages, hysteresis feature parameters are extracted to characterize the differences in response behavior of each spatial region. These hysteresis feature parameters are used to reflect the response differences of the same spatial region under different disturbance states.

[0137] In step S5, the consistency of the response states between different spatial regions is determined based on the hysteresis characteristic parameters of each spatial region. Specifically, by analyzing the overall distribution of the hysteresis characteristic parameters of each spatial region, a uniformity determination condition is generated to determine whether the response states of the spatial regions meet the uniformity requirements, and the hysteresis characteristic parameters of each spatial region are compared with the uniformity determination condition.

[0138] In step S6, based on the consistency determination result, the target spatial region requiring parameter adjustment is determined. The target spatial region is the area where the hysteresis characteristic parameters deviate from the overall distribution state. For the target spatial region, a corresponding parameter adjustment amount is generated. During the generation of the parameter adjustment amount, the influence range of the parameter adjustment is constrained by considering the correlation between spatial regions, thereby limiting the impact of parameter adjustment on non-target spatial regions.

[0139] Finally, in step S7, the parameter adjustment amount is mapped to the adjustable operating parameters of the optocoupler structure, and a parameter update operation is performed. After the parameter update is completed, the next perturbation cycle begins, and the above steps are repeated, so that the light output uniformity optimization process is iteratively executed within multiple perturbation cycles until the preset stopping condition is met or the running cycle ends.

[0140] Through the above steps, the light output uniformity optimization method can control the light output state in multiple spatial regions by analyzing the light output response behavior and adjusting the parameters without relying on optical structure reconstruction or optical path redesign.

[0141] In summary, the light output uniformity optimization scheme provided in this embodiment systematically configures functional modules such as disturbance control, light output acquisition, response behavior analysis, consistency determination, and parameter adjustment and mapping. Furthermore, it introduces a closed-loop control process under multiple disturbance cycles at the method level, transforming the light output control process of the optocoupler structure from a single static adjustment to a dynamic control process based on response behavior characteristics.

[0142] By applying controlled operating state perturbations to the optocoupler structure during operation and collecting light output response data during the perturbation application and removal phases, the differences in light output behavior in different spatial regions under different operating states can be more comprehensively reflected, thereby avoiding the locality and randomness problems caused by relying solely on a single steady-state data for judgment.

[0143] Furthermore, by performing staged analysis on the light output response behavior and constructing hysteresis characteristic parameters, the system can characterize the light output characteristics of each spatial region from the perspectives of response path differences and time differences, thereby improving the ability to identify the sources of light output non-uniformity and providing a more stable and discriminative basis for subsequent parameter adjustment.

[0144] Based on this, by analyzing the overall distribution of hysteresis characteristic parameters and dynamically generating uniformity judgment conditions, the judgment of response status between spatial regions does not depend on fixed thresholds or empirical settings, but is updated with the evolution of system operating status and disturbance cycle, thereby enhancing the adaptability and consistency of the uniformity judgment process.

[0145] For the identified target spatial region, this scheme introduces adjustment mechanisms such as parameter adjustment generation, influence range constraint, and propagation path differentiation, so that parameter adjustment can be applied more specifically to the target region and its influence on non-target regions can be limited, thereby improving the mutual interference problem that is prone to occur during the simultaneous control of multiple spatial regions.

[0146] Through the coordinated configuration of the above system structure and method, the optical output uniformity optimization process forms a closed-loop operation mechanism within multiple disturbance cycles. This enables continuous optimization of the optical output state of the optocoupler structure without changing the optical structure and optical path design, thereby improving the consistency and stability of optical output in different spatial regions and enhancing the applicability and controllability of the solution in actual engineering environments.

[0147] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A method for optimizing the uniformity of light output in an optocoupler structure, characterized in that, Includes the following steps: S1: When the optocoupler structure is in a preset working state, at least one controlled working state disturbance is applied to the optocoupler structure. The working state disturbance is limited to parameter changes that do not cause changes in the structural morphology or optical path structure of the optocoupler structure. S2: During the application and removal phases of the disturbance in the working state, light output response data corresponding to multiple predetermined spatial regions in the optocoupler structure are collected according to a preset time sampling rule. S3: For each of the aforementioned spatial regions, based on the corresponding optical output response data, construct a response behavior curve characterizing the spatial region during the disturbance application phase and the disturbance removal phase in the working state; S4: Compare and analyze the response behavior curves corresponding to different spatial regions, and extract hysteresis characteristic parameters to characterize the differences in response behavior of each spatial region. The hysteresis characteristic parameters include at least one of the following: response path offset, response time offset, or inter-stage change difference parameters between the disturbance application stage and the disturbance removal stage. S5: Based on the hysteresis feature parameters, classify and label each spatial region to determine the target spatial region where the hysteresis feature parameters deviate from the preset consistency judgment condition; The consistency determination criteria are generated based on the distribution of hysteresis characteristic parameters formed by the optocoupler structure in multiple disturbance cycles. The consistency determination criteria characterize the degree of concentration of hysteresis characteristic parameters in each spatial region under the current operating state. S6: For the target spatial region, generate the corresponding parameter adjustment amount based on its corresponding hysteresis characteristic parameters, and map the parameter adjustment amount to the adjustable operating parameters of the optocoupler structure; S7: Adjust the adjustable working parameters according to the parameter adjustment amount, and repeat steps S2 to S6 after the adjustment is completed until the hysteresis characteristic parameters of the target spatial region meet the consistency judgment condition.

2. The method for optimizing the uniformity of light output in the optocoupler structure according to claim 1, characterized in that, The working state disturbance in step S1 includes multiple parameter change operations applied within a preset disturbance period, wherein the parameter changes in adjacent disturbance periods are set to be asymmetric in at least one of the change direction, change sequence, or change duration, so that the optocoupler structure forms different response behavior paths corresponding to the disturbance application stage and the disturbance removal stage.

3. The method for optimizing the light output uniformity of the optocoupler structure according to claim 2, characterized in that, In adjacent disturbance cycles, the parameter changes are set to be asymmetric and updated at least in part based on the distribution of hysteresis characteristic parameters corresponding to each spatial region in the previous disturbance cycle. When updating the parameter changes, the relative deviation of the hysteresis characteristic parameters in different spatial regions and the difference in the changes of the hysteresis characteristic parameters between the disturbance application stage and the disturbance removal stage are combined to configure the parameter changes in subsequent disturbance cycles in terms of change direction, change order or change duration.

4. The method for optimizing the uniformity of light output in the optocoupler structure according to claim 1, characterized in that, The consistency determination criteria are adjusted during the generation process by taking into account the relative differences in the hysteresis characteristic parameters of each spatial region within multiple disturbance cycles. Specifically, the consistency determination criteria are updated synchronously with changes in the number of spatial regions, changes in the distribution relationship of hysteresis characteristic parameters between spatial regions, and changes in the hysteresis characteristic parameters during the evolution of the disturbance cycle.

5. The method for optimizing the uniformity of light output in the optocoupler structure according to claim 1, characterized in that, The parameter adjustment mapping process in step S6 includes the constraint configuration of the parameter influence range, so that when the parameter adjustment amount generated for the target spatial region acts on the adjustable working parameter, its influence on the corresponding hysteresis characteristic parameter of the non-target spatial region remains within a preset allowable range.

6. The method for optimizing the uniformity of light output in the optocoupler structure according to claim 5, characterized in that, The constraint configuration of the parameter influence range sets influence suppression rules based on the correlation between spatial regions. When performing parameter adjustment mapping, the propagation path of the parameter adjustment amount between different spatial regions is distinguished and processed so that when the parameter adjustment amount acts on the adjustable working parameter, the hysteresis characteristic parameter changes caused in different spatial regions are kept within the corresponding allowable range.

7. A system for optimizing the uniformity of light output in an optocoupler structure, applied to the method for optimizing the uniformity of light output in the optocoupler structure according to any one of claims 1-6, characterized in that, include: The disturbance control module is configured to apply a controlled working state disturbance to the optocoupler structure when the optocoupler structure is in a preset working state. The working state disturbance is limited to a range of parameter changes that do not cause changes in the structural morphology or optical path structure of the optocoupler structure. The optical output acquisition module is configured to acquire optical output response data corresponding to multiple predetermined spatial regions in the optocoupler structure according to a preset time sampling rule during the application and removal phases of the working state disturbance. The response behavior construction module is configured to construct response behavior curves characterizing each spatial region during the disturbance application and disturbance removal phases based on the light output response data corresponding to each spatial region. The hysteresis feature analysis module is configured to compare and analyze the response behavior curves corresponding to different spatial regions and extract hysteresis feature parameters that characterize the differences in response behavior among spatial regions. The consistency determination module is configured to classify and label each spatial region based on the hysteresis feature parameters, and determine the target spatial region whose hysteresis feature parameters deviate from the preset consistency determination conditions. The parameter adjustment and mapping module is configured to generate corresponding parameter adjustment values ​​for the target spatial region and map the parameter adjustment values ​​to the adjustable operating parameters of the optocoupler structure.

8. The optical output uniformity optimization system of the optocoupler structure according to claim 7, characterized in that, The disturbance control module is configured to apply multiple parameter change operations within a preset disturbance period, and to perform asymmetric configuration on at least one of the parameter changes in direction, order, or duration in adjacent disturbance periods, wherein the asymmetric configuration is updated at least in part based on the distribution state of hysteresis characteristic parameters corresponding to each spatial region in the previous disturbance period.

9. The optical output uniformity optimization system for the optocoupler structure according to claim 7, characterized in that, The parameter adjustment and mapping module includes a parameter influence range constraint unit. The parameter influence range constraint unit sets influence suppression rules based on the correlation between spatial regions. When performing parameter adjustment amount mapping, it distinguishes and configures the propagation path of the parameter adjustment amount between different spatial regions so that when the parameter adjustment amount acts on the adjustable working parameter, the hysteresis characteristic parameter changes caused by the parameter adjustment amount in different spatial regions are kept within the corresponding allowable range.

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