Method and system for laser energy converter parameter optimization

Abstract

The application provides a laser energy converter parameter optimization method, which comprises the following steps: obtaining initial parameters of a laser energy converter based on test instructions, configuring the laser energy converter based on the initial parameters, performing forward scanning and reverse scanning on the laser energy converter after the configuration is completed, outputting forward characteristic curves and reverse characteristic curves, calculating an actual hysteresis error factor based on the forward characteristic curves and the reverse characteristic curves, and optimizing the initial parameters based on the hysteresis error factor. The application obtains the forward characteristic curves and the reverse characteristic curves based on the initial parameters, calculates the actual hysteresis error factor, and optimizes the initial parameters, so that the test can be quickly completed by obtaining one instruction and completing one communication, the time for communication between the host computer and the measuring equipment is greatly reduced, the optimal adaptive parameters are calculated based on the output characteristic curves, the parameter optimization step is greatly simplified, and the performance test and analysis test efficiency of the LPC are improved.

Description

Technical Field

[0001] This invention relates to the field of testing technology for photovoltaic devices such as laser energy converters, and more specifically, to a method and system for optimizing laser energy converter parameters. Background Technology

[0002] Solar energy technology is becoming increasingly mature through continuous optimization. Compared to traditional photovoltaic cells, laser power converters (LPCs) have stronger resistance to electromagnetic interference and the advantage of power supply unaffected by the natural environment, which has attracted widespread attention and rapid development. Compared with other materials, GaAs LPCs have a wider range of applications due to their high photoelectric conversion efficiency. However, high-efficiency LPCs are easily affected by hysteresis during testing due to the influence of internal equivalent capacitance.

[0003] Hysteresis can lead to inaccurate data during the performance testing and analysis of LPC, thus affecting the final LPC adaptation parameters. Therefore, how to further optimize the configuration parameters of the laser energy converter to obtain reasonable adaptation parameters is an urgent problem to be solved. Summary of the Invention

[0004] This invention addresses the technical problems existing in the prior art by providing a method and system for optimizing laser energy converter parameters, thereby solving the problem of how to further optimize the configuration parameters of the laser energy converter to obtain reasonable adaptation parameters.

[0005] According to a first aspect of the present invention, a method for optimizing laser energy converter parameters is provided, comprising:

[0006] The initial parameters of the laser energy converter are obtained based on the acquired test instructions;

[0007] Based on the initial parameters, the laser energy converter is scanned in the forward direction, and multiple forward currents and their corresponding forward voltages are collected during the forward scanning process;

[0008] When the direction of any of the multiple forward currents changes, the forward voltage corresponding to the forward current whose direction has changed is obtained. The forward voltage corresponding to the forward current whose direction has changed is the maximum voltage among the multiple forward voltages. The forward scan ends and the forward characteristic curve is output.

[0009] Based on the initial parameters and the maximum voltage, the laser energy converter is subjected to reverse scanning, and multiple reverse currents and their corresponding reverse voltages are collected during the reverse scanning process.

[0010] When any of the multiple reverse currents has a reverse voltage less than or equal to a preset threshold, the reverse scan ends and the reverse characteristic curve is output.

[0011] Based on the positive characteristic curve and the negative characteristic curve, the actual hysteresis error factor of the laser energy converter is calculated;

[0012] The initial parameters are optimized based on the actual hysteresis error factor.

[0013] Based on the above technical solution, the present invention can also be improved as follows.

[0014] Preferably, the initial parameters include: the waiting time t1 before the bias voltage change, the time t2 for the voltage to rise or fall, the time t3 for the voltage to remain after the bias voltage change and before measurement, the time t4 for writing data into the memory, the time t5 for converting the analog signal into a digital signal, and the reference hysteresis error factor ε. refer and calibration difference D mark .

[0015] Preferably, the step of performing a forward scan on the laser energy converter based on the initial parameters and acquiring multiple forward currents and their corresponding forward voltages during the forward scan process includes:

[0016] The laser energy converter is configured based on the initial parameters, and the output source voltage is gradually increased according to a preset boost ratio. The corresponding forward current value is collected when the output source voltage value changes.

[0017] Preferably, the step of performing a reverse scan of the laser energy converter based on the initial parameters and the maximum voltage, and collecting multiple reverse currents and their corresponding reverse voltages during the reverse scan process, includes:

[0018] The laser energy converter is configured based on the initial parameters. The output source voltage is set to the maximum voltage and gradually reduced according to a preset voltage reduction ratio until the output source voltage is less than or equal to a preset threshold. The corresponding reverse current value is collected when the output source voltage value changes.

[0019] Preferably, the step of optimizing the initial parameters based on the actual hysteresis error factor includes:

[0020] When the actual hysteresis error factor is less than the reference hysteresis error factor, the initial parameters are set as the adaptation parameters of the laser energy converter.

[0021] Preferably, the step of optimizing the initial parameters based on the actual hysteresis error factor further includes:

[0022] When the actual hysteresis error factor is greater than the reference hysteresis error factor, the actual difference is calculated. When the actual difference is less than the calibration difference, the waiting time t1 before the bias voltage change, the voltage holding time t3 after the bias voltage change and before measurement, and the time t4 for writing data to the memory in the initial parameters are adjusted until the actual hysteresis error factor is less than the reference hysteresis error factor. Then, the adjusted initial parameters are set as the adaptation parameters of the laser energy converter.

[0023] Preferably, the step of optimizing the initial parameters based on the actual hysteresis error factor further includes:

[0024] When the actual difference is greater than the calibration difference, the voltage rise or fall time t2 and the time t5 required for the analog signal to be converted into a digital signal in the initial parameters are adjusted until the actual hysteresis error factor is less than the reference hysteresis error factor. Then, the adjusted initial parameters are set as the adaptation parameters of the laser energy converter.

[0025] According to a second aspect of the present invention, a laser energy converter parameter optimization system is provided, comprising:

[0026] The instruction acquisition module is used to obtain the initial parameters of the laser energy converter based on the acquired test instructions;

[0027] The forward scanning module is used to perform a forward scan on the laser energy converter based on the initial parameters, and to collect multiple forward currents and their corresponding forward voltages during the forward scanning process;

[0028] The forward curve output module is used to obtain the forward voltage corresponding to the forward current whose direction has changed when the direction of any forward current among the plurality of forward currents changes. The forward voltage corresponding to the forward current whose direction has changed is the maximum voltage among the plurality of forward voltages. The forward scan is then terminated and a forward characteristic curve is output.

[0029] The reverse scanning module is used to perform a reverse scan on the laser energy converter based on the initial parameters and the maximum voltage, and to collect multiple reverse currents and their corresponding reverse voltages during the reverse scanning process.

[0030] The reverse curve output module is used to end the reverse scan and output the reverse characteristic curve when any reverse voltage is less than or equal to a preset threshold.

[0031] An error calculation module is used to calculate the actual hysteresis error factor of the laser energy converter based on the positive characteristic curve and the reverse characteristic curve.

[0032] The parameter optimization module is used to optimize the initial parameters based on the actual hysteresis error factor.

[0033] According to a third aspect of the present invention, an electronic device is provided, including a memory and a processor, wherein the processor is configured to execute a computer management program stored in the memory to implement the steps of any of the laser energy converter parameter optimization methods described in the first aspect above.

[0034] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, on which a computer management program is stored, wherein when executed by a processor, the computer management program implements the steps of any of the laser energy converter parameter optimization methods of the first aspect described above.

[0035] This invention provides a method and system for optimizing laser energy converter parameters. The method includes: acquiring initial parameters of the laser energy converter based on obtained test commands; performing a forward scan on the laser energy converter based on the initial parameters, collecting multiple forward currents and their corresponding forward voltages during the forward scan; obtaining the forward voltage corresponding to the forward current whose direction has changed when any of the multiple forward currents changes, wherein the forward voltage corresponding to the forward current whose direction has changed is the maximum voltage among the multiple forward voltages, ending the forward scan and outputting a forward characteristic curve; performing a reverse scan on the laser energy converter based on the initial parameters and the maximum voltage, collecting multiple reverse currents and their corresponding reverse voltages during the reverse scan; ending the reverse scan and outputting a reverse characteristic curve when any reverse voltage is less than or equal to a preset threshold; calculating the actual hysteresis error factor of the laser energy converter based on the forward characteristic curve and the reverse characteristic curve; and optimizing the initial parameters based on the actual hysteresis error factor. This invention performs forward and reverse scanning on a laser energy converter based on the acquired test command, obtaining forward and reverse characteristic curves. Based on these two characteristic curves, the actual hysteresis error factor of the laser energy converter is calculated, and the initial parameters of the laser energy converter are optimized based on this actual hysteresis error factor. This allows for rapid testing with only one command acquired and one communication completed, significantly reducing the communication time between the host computer and the measuring device. Furthermore, while reducing communication time, it conveniently and quickly obtains accurate output characteristic curves and calculates optimal adaptation parameters based on these curves, greatly simplifying the parameter optimization process and improving the efficiency of LPC performance testing and analysis. Attached Figure Description

[0036] Figure 1 A flowchart of a laser energy converter parameter optimization method provided by the present invention;

[0037] Figure 2 This is a schematic diagram of the communication structure between the host computer and the measuring device provided by the present invention;

[0038] Figure 3 This is a schematic diagram illustrating traditional data acquisition methods.

[0039] Figure 4 This is a schematic diagram of data acquisition using TSP technology provided by the present invention;

[0040] Figure 5 Flowchart of methods for configuring LPC test parameters for different materials and structures;

[0041] Figure 6 A schematic diagram of a laser energy converter parameter optimization system provided by the present invention;

[0042] Figure 7 A schematic diagram of the hardware structure of a possible electronic device provided by the present invention;

[0043] Figure 8 This is a schematic diagram of the hardware structure of a possible computer-readable storage medium provided by the present invention. Detailed Implementation

[0044] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0045] Figure 1 A flowchart of a laser energy converter parameter optimization method provided by the present invention is shown below. Figure 1 As shown, the method includes:

[0046] Step S100: Obtain the initial parameters of the laser energy converter based on the acquired test instructions;

[0047] It should be noted that the executing entity in this embodiment can be an instrument testing device. The aforementioned test instructions can be sent from a host computer to the instrument testing device, or they can be sent from other third-party systems or triggers to the instrument testing device. This embodiment does not impose any restrictions on this. The aforementioned instrument testing device and the host computer constitute a test system, such as... Figure 2 As shown, the host computer remotely controls the measuring equipment and transmits various commands to the testing equipment via the GPIB bus. The data collected by the measuring equipment is then transmitted to the host computer via the GPIB bus.

[0048] Furthermore, traditional data acquisition processes require a host computer to send various instructions to the testing equipment to complete corresponding operations. In addition, the algorithms and logical judgments for data acquisition must be completed in the host computer. After receiving the data, the host computer performs logical judgments to determine the next operation and then sends instructions to the testing equipment again. A data acquisition diagram is shown below. Figure 3 As shown in the diagram. Based on the drawbacks of this data acquisition method, we optimized the testing system. We introduced a Test Scripting Language (TSL) based on the standard programming language Lua into the testing system. Utilizing the instrument's internal Test Script Processor (TSP) technology, the entire TSL control program can be loaded into the measuring device. The host computer can execute the entire program with a single command, significantly reducing the number of times the host computer needs to communicate with the measuring device via the GPIB bus. Compared to traditional data communication methods, TSP technology allows algorithms and logical judgments that can be executed on the host computer to be implemented autonomously within the instrument. A schematic diagram of the data acquisition is shown in the diagram. Figure 4 As shown.

[0049] It is understood that the aforementioned initial parameters can be set based on the engineer's relevant experience, or they can be different initial parameters configured for LPCs of different materials and structures. The aforementioned initial parameters can be carried in the aforementioned test command and obtained after decryption; or they can be stored in local storage and actively queried locally upon receiving the aforementioned test command. This embodiment does not impose any restrictions on this.

[0050] Furthermore, the aforementioned initial parameters include the waiting time t1 before the bias voltage change, the voltage rise or fall time t2, the voltage hold time t3 after the bias voltage change and before measurement, the time t4 for writing data to memory, the time t5 for converting the analog signal to a digital signal, and the reference hysteresis error factor ε. refer and calibration difference D mark .

[0051] Furthermore, when the measurement equipment uses Keithley's 24 Series and 26 Series Source Measurement Units (SMUs), key test parameters in the SMU include: Source delay (t1), which is the delay between the output source and the source when the instrument is used for source and measurement, providing a settling time for the output source. The delay can be from 0 to 10000 seconds. If automatic source delay is selected, the delay time depends on the selected current range. For high impedance and high capacitive loads, the output source requires more time to reach equilibrium; NPLC (t2), which describes the maximum scan rate, i.e., the A / D sampling rate. With an SMU input AC signal of 50Hz, one duty cycle is 1 / 50s, or 0.02s. When we set the NPLC to 0.01, which means acquiring 100 points in one work cycle, theoretically, acquiring one point would take 200 microseconds. Measure delay (t3) sets the time the voltage is held between the bias voltage change and the measurement, ensuring the acquired data is a relatively stable value, not a transient one. Display digits (t4) determines the number of decimal places to which the acquired data is accurate, deciding the time required to write the data to memory; more digits mean more storage time. Point (t5) determines the number of points to acquire, deciding the number of analog-to-digital conversions required; more points mean more conversions and more time. For the 26-series SMU, setting the NPLC to 0.001 theoretically takes 20 microseconds to acquire one point. However, in reality, acquiring a single point is not that fast. There are many factors that affect the acquisition speed, such as the output source delay time mentioned earlier. After each point is measured, the output voltage or current value will change once. After the change, the output source needs a stable time to provide a stable output to our device under test. Moreover, when measuring the current value at that voltage or the voltage value at that current, the SMU performs some processing to make the measured voltage or current value as accurate as possible at that moment.

[0052] Step S200: Based on the initial parameters, perform a forward scan on the laser energy converter and collect multiple forward currents and their corresponding forward voltages during the forward scan process;

[0053] It is understandable that the above-mentioned forward scan can be a scan of the test chip from the direction of short-circuit current value to open-circuit voltage.

[0054] Furthermore, the steps for obtaining forward current and forward voltage via forward scanning also include:

[0055] Step S201: Configure the laser energy converter based on the initial parameters, gradually increase the output source voltage according to the preset boost ratio, and collect the corresponding forward current value when the output source voltage value changes.

[0056] It is understood that the aforementioned preset boost ratio can be set by the engineer according to actual test requirements, and this embodiment does not impose any restrictions on this.

[0057] Step S300: When the direction of any of the multiple forward currents changes, obtain the forward voltage corresponding to the forward current whose direction has changed. The forward voltage corresponding to the forward current whose direction has changed is the maximum voltage among the multiple forward voltages. End the forward scan and output the forward characteristic curve.

[0058] Step S400: Based on the initial parameters and the maximum voltage, perform a reverse scan on the laser energy converter and collect multiple reverse currents and their corresponding reverse voltages during the reverse scan process;

[0059] Understandably, the aforementioned reverse scan can be a scan of the test chip from open-circuit voltage to short-circuit current.

[0060] Furthermore, the steps for obtaining reverse current and reverse voltage via reverse scanning also include:

[0061] Step S401: Configure the laser energy converter based on the initial parameters, set the output source voltage to the maximum voltage and gradually decrease it according to the preset voltage reduction ratio until the output source voltage is less than or equal to the preset threshold, and collect the corresponding reverse current value when the output source voltage value changes.

[0062] It is understood that the aforementioned preset voltage reduction ratio can be set by the engineer according to actual test requirements, and this embodiment does not impose any restrictions on it.

[0063] It should be understood that the aforementioned preset threshold can be a threshold set by the engineer according to actual needs, and can usually be set to 0.

[0064] Step S500: When any reverse voltage among the plurality of reverse currents is less than or equal to a preset threshold, the reverse scan ends and the reverse characteristic curve is output;

[0065] Step S600: Based on the positive characteristic curve and the negative characteristic curve, calculate the actual hysteresis error factor of the laser energy converter;

[0066] Understandably, characteristic curve (IV curve) measurement is an important characterization technique for LPC performance. In the dark (no light irradiation), when the current generated by majority carrier diffusion and minority carrier drift is equal, the PN junction reaches dynamic equilibrium, and no net current flows. Under laser irradiation, photons with energy greater than the bandgap strike the PN junction surface and are absorbed by the material. These photons interact with valence band electrons, exciting photogenerated carriers and generating a photocurrent, thus producing current without an external electric field. When an external electric field is applied, with the positive terminal connected to the P-region and the negative terminal to the N-region, the applied electric field intensifies the drift of holes in the non-space charge region of the P-region and the drift of electrons in the non-space charge region of the N-region, increasing the diffusion current. As the applied voltage gradually increases, the photocurrent gradually decreases until it reaches zero. This process of continuously increasing the external voltage until the current reaches zero is the complete output characteristic curve (IV curve) of the LPC. Therefore, the characteristic curve can effectively reflect the electrical characteristics of the LPC.

[0067] In the specific implementation, after configuring the relevant parameters, a bidirectional scan is performed on the test chip. The direction from short-circuit current to open-circuit voltage is the forward scan, and the direction from open-circuit voltage to short-circuit current is the reverse scan. Completing the bidirectional scan in a short time will introduce errors in the two output characteristic curves due to the influence of the charging and discharging of the LPC's internal equivalent capacitance. This error is typically represented by an error factor ε. The smaller the error factor ε, the less the capacitance affects the test, and the more optimal the configured parameters are for testing LPCs of the same type and structure. When the error factor ε is very small and remains constant within a certain range, the LPC's output characteristic curve is obtained, and the configured parameters are recorded. The flowchart is as follows. Figure 5 As shown.

[0068] Step S700: Optimize the initial parameters based on the actual hysteresis error factor.

[0069] Furthermore, the optimization steps described above may include:

[0070] Step S701: In the actual hysteresis error factor ε real Less than the reference hysteresis error factor ε refer At that time, the initial parameters are set as the adaptation parameters of the laser energy converter.

[0071] Step S702: In the actual hysteresis error factor ε real Greater than the reference hysteresis error factor ε refer When calculating the actual difference D real In the actual difference D real Less than the calibration difference D markAt that time, the waiting time t1 before the bias voltage change, the voltage holding time t3 after the bias voltage change and before measurement, and the time t4 for writing data to memory in the initial parameters are adjusted until the actual hysteresis error factor ε is obtained. real Less than the reference hysteresis error factor ε refer At that time, the adjusted initial parameters are set as the adaptation parameters of the laser energy converter.

[0072] Step S703: In the actual difference D real Greater than the calibration difference D mark At that time, the voltage rise or fall time t2 and the time t5 required for the analog signal to be converted into a digital signal in the initial parameters are adjusted to the actual hysteresis error factor ε. real Less than the reference hysteresis error factor ε refer At that time, the adjusted initial parameters are set as the adaptation parameters of the laser energy converter.

[0073] Understandably, based on the deficiencies in the background technology, this invention proposes a method for optimizing laser energy converter parameters. The method includes: acquiring initial parameters of the laser energy converter based on obtained test instructions; performing a forward scan on the laser energy converter based on the initial parameters, collecting multiple forward currents and their corresponding forward voltages during the forward scan; when the direction of any of the multiple forward currents changes, obtaining the forward voltage corresponding to the forward current with the changed direction, wherein the forward voltage corresponding to the forward current with the changed direction is the maximum voltage among the multiple forward voltages, ending the forward scan and outputting a forward characteristic curve; performing a reverse scan on the laser energy converter based on the initial parameters and the maximum voltage, collecting multiple reverse currents and their corresponding reverse voltages during the reverse scan; ending the reverse scan and outputting a reverse characteristic curve when any reverse voltage is less than or equal to a preset threshold; calculating the actual hysteresis error factor of the laser energy converter based on the forward and reverse characteristic curves; and optimizing the initial parameters based on the actual hysteresis error factor. This invention performs forward and reverse scanning on a laser energy converter based on acquired test commands to obtain forward and reverse characteristic curves. Based on these two characteristic curves, the actual hysteresis error factor of the laser energy converter is calculated, and the initial parameters of the laser energy converter are optimized based on this actual hysteresis error factor. This allows for rapid testing with only one communication between the host computer and the measuring device, significantly reducing the communication time between them. Furthermore, while reducing communication time, it conveniently and quickly obtains accurate output characteristic curves and calculates optimal adaptation parameters based on these curves, greatly simplifying the parameter optimization process and improving the efficiency of LPC performance testing and analysis.

[0074] In one possible application scenario, the chip used for testing is a six-junction monochromatic GaAs laser energy converter, with each sub-cell having a thickness of 147nm, 180nm, 210nm, 327nm, 559nm, and 2555nm. The specific testing steps of this method are as follows:

[0075] Step S1: Configure relevant parameters t1, t2, t3, t4, and t5 and calibrate the reference hysteresis error factor ε. refer Calibration difference D mark Execute the TSP instruction set according to the configured parameters;

[0076] Step S2: During the data acquisition process, the output source voltage increases from 0 by a certain proportion, and the corresponding current value is acquired each time the voltage is changed.

[0077] Step S3: Add a judgment during the data acquisition process. Perform a judgment after each current acquisition to determine whether the direction of the current has changed.

[0078] Step S4: If the direction does not change, continue to complete the data acquisition; if the direction of the current changes, store the acquired data in the memory to complete the forward scan.

[0079] Step S5: Record the last voltage value V after the forward scan is completed. The voltage of the output source is reduced from V to 0 by a certain proportion. Each time the voltage is changed, record the corresponding current value to complete the reverse scan.

[0080] Step S6: Calculate the actual hysteresis error factor ε based on the output characteristic curves under different scanning directions. real The hysteresis error factor is used to determine whether the configured parameters are compatible with the battery being tested.

[0081] Step S7: Adjust the actual hysteresis error factor ε real With reference hysteresis error factor ε refer For comparison, if ε real The value is less than ε refer We will use the values ​​of these configured parameters as the adaptation parameters for testing LPCs of the same type.

[0082] Step S8: If ε real The value is greater than ε refer We readjust the test parameters based on the value of ε. real and ε refer Divide and denote as D real If D real Less than D mark Then adjust parameters t1, t3, and t4 by a small margin. If D real Greater than D markThen adjust parameters t2 and t5 significantly and repeat the above steps until ε real The value is less than ε refer The value is used to end the loop, and the last configured parameter is used as the adaptation parameter for testing LPCs of the same type.

[0083] After mapping the measuring equipment parameters to the defined time parameters, the calibration error factor ε is defined. refer Set initial parameters and complete the forward and reverse IV curve scanning of the test battery, while calculating the actual error factor ε. real If the actual error factor is less than the calibrated error factor, the test result is directly taken as the final result of this test, and the parameters configured this time are directly used as the adaptation parameters of the GaAs laser energy converter with the same structure. If the actual error factor is greater than the calibrated error factor, the parameters are reconfigured and forward and reverse scans are performed until the actual test error factor is less than the calibrated error factor. The loop ends and the result is output as the final result of this test. The parameters configured last time are used as the adaptation parameters of the GaAs laser energy converter with the same structure.

[0084] In this embodiment, a rapid testing method for the PIV curve of a laser energy converter is provided. The testing system based on this method significantly reduces the communication time between the host computer and the measuring device. It enables the host computer to control the measuring device to complete low-level communication, with no intervention from the host computer during data acquisition. The system quickly measures and completes data acquisition, then transmits the data back to the host computer for further analysis. Furthermore, a new method is proposed on the optimized system to configure adaptive parameters for LPCs of different materials and structures, facilitating the quick and accurate acquisition of an output characteristic curve. This provides assistance for the research and further optimization of LPC characteristics with different materials and structures, demonstrating significant application value.

[0085] Please see Figure 6 , Figure 6 This is a schematic diagram of a laser energy converter parameter optimization system provided in an embodiment of the present invention, as shown below. Figure 6 As shown, a laser energy converter parameter optimization system includes an instruction acquisition module 100, a forward scanning module 200, a forward curve output module 300, a reverse scanning module 400, a reverse curve output module 500, an error calculation module 600, and a parameter optimization module 700, wherein:

[0086] The instruction acquisition module 100 is used to acquire initial parameters of the laser energy converter based on the acquired test instructions; the forward scanning module 200 is used to perform a forward scan of the laser energy converter based on the initial parameters, and collect multiple forward currents and their corresponding forward voltages during the forward scanning process; the forward curve output module 300 is used to obtain the forward voltage corresponding to the forward current whose direction has changed when the direction of any of the multiple forward currents changes, wherein the forward voltage corresponding to the forward current whose direction has changed is the maximum voltage among the multiple forward voltages, and then terminates the forward scan and outputs the forward characteristic curve. The system includes: a reverse scanning module 400, used to perform a reverse scan on the laser energy converter based on the initial parameters and the maximum voltage, and to collect multiple reverse currents and their corresponding reverse voltages during the reverse scan process; a reverse curve output module 500, used to end the reverse scan and output a reverse characteristic curve when any reverse voltage is less than or equal to a preset threshold; an error calculation module 600, used to calculate the actual hysteresis error factor of the laser energy converter based on the forward characteristic curve and the reverse characteristic curve; and a parameter optimization module 700, used to optimize the initial parameters based on the actual hysteresis error factor.

[0087] It is understood that the laser energy converter parameter optimization system provided by the present invention corresponds to the laser energy converter parameter optimization method provided in the foregoing embodiments. The relevant technical features of the laser energy converter parameter optimization system can be referred to the relevant technical features of the laser energy converter parameter optimization method, and will not be repeated here.

[0088] Please see Figure 7 , Figure 7 A schematic diagram illustrating an embodiment of the electronic device provided in this invention. For example... Figure 7 As shown, this embodiment of the invention provides an electronic device, including a memory 1310, a processor 1320, and a computer program 1311 stored in the memory 1310 and executable on the processor 1320. When the processor 1320 executes the computer program 1311, it performs the following steps:

[0089] The initial parameters of the laser energy converter are obtained based on the acquired test instructions. Based on these initial parameters, a forward scan is performed on the laser energy converter, acquiring multiple forward currents and their corresponding forward voltages during the forward scan. When the direction of any of the multiple forward currents changes, the forward voltage corresponding to the forward current with the changed direction is obtained. The forward voltage corresponding to the forward current with the changed direction is the maximum voltage among the multiple forward voltages. The forward scan is then terminated, and a forward characteristic curve is output. Based on the initial parameters and the maximum voltage, a reverse scan is performed on the laser energy converter, acquiring multiple reverse currents and their corresponding reverse voltages during the reverse scan. When any reverse voltage is less than or equal to a preset threshold, the reverse scan is terminated, and a reverse characteristic curve is output. Based on the forward and reverse characteristic curves, the actual hysteresis error factor of the laser energy converter is calculated. The initial parameters are then optimized based on the actual hysteresis error factor.

[0090] Please see Figure 8 , Figure 8 This is a schematic diagram illustrating an embodiment of a computer-readable storage medium provided by the present invention. (See diagram below.) Figure 8 As shown, this embodiment provides a computer-readable storage medium 1400, on which a computer program 1411 is stored. When the computer program 1411 is executed by a processor, it performs the following steps:

[0091] The initial parameters of the laser energy converter are obtained based on the acquired test instructions. Based on these initial parameters, a forward scan is performed on the laser energy converter, acquiring multiple forward currents and their corresponding forward voltages during the forward scan. When the direction of any of the multiple forward currents changes, the forward voltage corresponding to the forward current with the changed direction is obtained. The forward voltage corresponding to the forward current with the changed direction is the maximum voltage among the multiple forward voltages. The forward scan is then terminated, and a forward characteristic curve is output. Based on the initial parameters and the maximum voltage, a reverse scan is performed on the laser energy converter, acquiring multiple reverse currents and their corresponding reverse voltages during the reverse scan. When any reverse voltage is less than or equal to a preset threshold, the reverse scan is terminated, and a reverse characteristic curve is output. Based on the forward and reverse characteristic curves, the actual hysteresis error factor of the laser energy converter is calculated. The initial parameters are then optimized based on the actual hysteresis error factor.

[0092] This invention provides a method and system for optimizing laser energy converter parameters. The method includes: acquiring initial parameters of the laser energy converter based on a received test command; performing a forward scan on the laser energy converter based on the initial parameters, collecting multiple forward currents and their corresponding forward voltages during the forward scan; when the direction of any of the multiple forward currents changes, obtaining the forward voltage corresponding to the forward current with the changed direction, wherein the forward voltage corresponding to the forward current with the changed direction is the maximum voltage among the multiple forward voltages, ending the forward scan and outputting a forward characteristic curve; performing a reverse scan on the laser energy converter based on the initial parameters and the maximum voltage, collecting multiple reverse currents and their corresponding reverse voltages during the reverse scan; ending the reverse scan and outputting a reverse characteristic curve when any reverse voltage is less than or equal to a preset threshold; calculating the actual hysteresis error factor of the laser energy converter based on the forward characteristic curve and the reverse characteristic curve; and optimizing the initial parameters based on the actual hysteresis error factor. This invention performs forward and reverse scanning on a laser energy converter based on acquired test commands to obtain forward and reverse characteristic curves. Based on these two characteristic curves, the actual hysteresis error factor of the laser energy converter is calculated, and the initial parameters of the laser energy converter are optimized based on this actual hysteresis error factor. This allows for rapid testing with only one communication between the host computer and the measuring device, significantly reducing the communication time between them. Furthermore, while reducing communication time, it conveniently and quickly obtains accurate output characteristic curves and calculates optimal adaptation parameters based on these curves, greatly simplifying the parameter optimization process and improving the efficiency of LPC performance testing and analysis.

[0093] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0094] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0095] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0096] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0097] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0098] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0099] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for optimizing parameters of a laser energy converter, characterized in that, The method includes: The initial parameters of the laser energy converter are obtained based on the acquired test instructions; Based on the initial parameters, the laser energy converter is scanned in the forward direction, and multiple forward currents and their corresponding forward voltages are collected during the forward scanning process; When the direction of any of the multiple forward currents changes, the forward voltage corresponding to the forward current whose direction has changed is obtained. The forward voltage corresponding to the forward current whose direction has changed is the maximum voltage among the multiple forward voltages. The forward scan ends and the forward characteristic curve is output. Based on the initial parameters and the maximum voltage, the laser energy converter is subjected to reverse scanning, and multiple reverse currents and their corresponding reverse voltages are collected during the reverse scanning process. When any of the multiple reverse currents has a reverse voltage less than or equal to a preset threshold, the reverse scan ends and the reverse characteristic curve is output. Based on the positive characteristic curve and the negative characteristic curve, the actual hysteresis error factor of the laser energy converter is calculated; The initial parameters are optimized based on the actual hysteresis error factor. The initial parameters include: the waiting time before the bias voltage changes. t 1. The time it takes for the voltage to rise or fall t 2. The time the voltage is held after the bias voltage change and before measurement. t 3. Time taken to write data to memory t 4. The time required to convert an analog signal into a digital signal t 5. Reference hysteresis error factor and calibration difference ; The step of optimizing the initial parameters based on the actual hysteresis error factor includes: optimizing the initial parameters based on the actual hysteresis error factor... Less than the reference hysteresis error factor At that time, the initial parameters are set as the adaptation parameters of the laser energy converter; The step of optimizing the initial parameters based on the actual hysteresis error factor further includes: optimizing the initial parameters based on the actual hysteresis error factor... Greater than the reference hysteresis error factor Calculate the actual difference. In the actual difference Less than the calibration difference At that time, adjust the waiting time before the bias voltage change in the initial parameters. t 1. The duration of voltage hold-up after the bias voltage change and before measurement t 3. The time taken to write data to memory t 4, until the actual hysteresis error factor. Less than the reference hysteresis error factor At that time, the adjusted initial parameters are set as the adaptation parameters of the laser energy converter; The step of optimizing the initial parameters based on the actual hysteresis error factor further includes: in the actual difference Greater than the calibration difference At that time, adjust the voltage rise or fall time in the initial parameters. t 2. The time required to convert analog signals into digital signals t 5, to the actual hysteresis error factor Less than the reference hysteresis error factor At that time, the adjusted initial parameters are set as the adaptation parameters of the laser energy converter.

2. The laser energy converter parameter optimization method according to claim 1, characterized in that, The step of performing a forward scan of the laser energy converter based on the initial parameters and acquiring multiple forward currents and their corresponding forward voltages during the forward scan process includes: The laser energy converter is configured based on the initial parameters, and the output source voltage is gradually increased according to a preset boost ratio. The corresponding forward current value is collected when the output source voltage value changes.

3. The laser energy converter parameter optimization method according to claim 1, characterized in that, The step of performing a reverse scan on the laser energy converter based on the initial parameters and the maximum voltage, and collecting multiple reverse currents and their corresponding reverse voltages during the reverse scan process, includes: The laser energy converter is configured based on the initial parameters. The output source voltage is set to the maximum voltage and gradually reduced according to a preset voltage reduction ratio until the output source voltage is less than or equal to a preset threshold. The corresponding reverse current value is collected when the output source voltage value changes.

4. A laser energy converter parameter optimization system, characterized in that, include: The instruction acquisition module is used to obtain the initial parameters of the laser energy converter based on the acquired test instructions; The forward scanning module is used to perform a forward scan on the laser energy converter based on the initial parameters, and to collect multiple forward currents and their corresponding forward voltages during the forward scanning process; The forward curve output module is used to obtain the forward voltage corresponding to the forward current whose direction has changed when the direction of any forward current among the plurality of forward currents changes. The forward voltage corresponding to the forward current whose direction has changed is the maximum voltage among the plurality of forward voltages. The forward scan is then terminated and a forward characteristic curve is output. The reverse scanning module is used to perform a reverse scan on the laser energy converter based on the initial parameters and the maximum voltage, and to collect multiple reverse currents and their corresponding reverse voltages during the reverse scanning process. The reverse curve output module is used to end the reverse scan and output the reverse characteristic curve when any reverse voltage is less than or equal to a preset threshold. An error calculation module is used to calculate the actual hysteresis error factor of the laser energy converter based on the positive characteristic curve and the reverse characteristic curve. The parameter optimization module is used to optimize the initial parameters based on the actual hysteresis error factor.

5. An electronic device, characterized in that, It includes a memory and a processor, wherein the processor is used to execute computer management programs stored in the memory to implement the steps of the laser energy converter parameter optimization method as described in any one of claims 1-3.

6. A computer-readable storage medium, characterized in that, It stores a computer management program, which, when executed by a processor, implements the steps of the laser energy converter parameter optimization method as described in any one of claims 1-3.

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