High-performance integrated laser driver driving method with multiple outputs

Abstract

The present invention discloses a high-performance integrated laser driver driving method with multiple outputs, and relates to the technical field of integrated laser driver driving, in order to solve the problem of poor signal stability of multiple output channels of existing laser drivers. The present invention installs a monitoring module on each output channel to monitor the quality of the output signal and the operating status of the driver in real time, provide instant feedback, ensure the reliability of the system, automatically adjust and correct the driver control strategy according to the early warning data, ensure that the system can quickly recover to the optimal state after an abnormality occurs, improve the adaptive ability of the system, and further optimize the system performance through the secondary driver control strategy obtained by automatic adjustment and correction, reduce manual intervention, and improve the intelligence level of the system. Through in-depth performance analysis, it is possible to generate personalized control strategies for specific application scenarios, so that the driver performs better in special application environments.

Description

Technical Field

[0001] The invention relates to the technical field of integrated laser driver driving, in particular to a driving method of a high-performance integrated laser driver with multiple outputs. Background Art

[0002] Integrated laser driver driving is the operation and control process of the integrated laser driver.

[0003] The Chinese patent with announcement number CN106654854B discloses an overvoltage protection device for CMOS laser drivers, which mainly adjusts the source voltage of the third PMOS tube M3 through the output sampling signal to adapt to vertical cavity surface emitting lasers of different models and different temperature conditions. The fourth PMOS tube M4 uses a diode connection method to bias the third PMOS tube M3 to follow the PVT change. The second adjustable current source I2 is proportional to the fourth adjustable current source I4 and the first adjustable current source I1 to adapt to different laser driver bias currents and modulation currents. The third adjustable current source I3 can also be adjusted to output different IMOD currents and equivalent on-resistances of different lasers for different lasers to optimize the Vds of the third PMOS tube M3. Although the above patent solves the problem of overvoltage protection of laser drivers, the following problems still exist in actual operation:

[0004] 1. The collected data of the laser driver is not further modulated, resulting in poor overall performance of the laser driver signal.

[0005] 2. The specific parameters of the multiple output channels of the laser driver are not set and monitored, which results in a reduction in the abnormality prediction capability of the multiple output channels.

[0006] 3. There is no correlation analysis between the signal data of the laser driver and the laser driver itself, which leads to imperfect control strategy of the laser driver. Summary of the invention

[0007] The purpose of the present invention is to provide a high-performance integrated laser driver driving method with multiple outputs. By installing a monitoring module on each output channel, the quality of the output signal and the operating status of the driver are monitored in real time, and instant feedback is provided to ensure the reliability of the system. The driver control strategy is automatically adjusted and corrected according to the early warning data to ensure that the system can quickly recover to the optimal state after an abnormality occurs, thereby improving the system's adaptability. The secondary driver control strategy obtained by automatic adjustment and correction can further optimize the system performance, reduce manual intervention, and improve the intelligence level of the system. Through in-depth performance analysis, personalized control strategies for specific application scenarios can be generated, so that the driver performs better in special application environments, which can solve the problems in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A multi-channel output high-performance integrated laser driver driving method includes the following steps:

[0010] S1: Power data collection and management: collect power data of the laser driver in real time, convert the collected real-time data into digital signals, and mark them as real-time power signals after the conversion is completed;

[0011] S2: Signal data modulation and processing: modulate the real-time power signal according to the working characteristics of the laser driver, and process the modulated signal to obtain the driver output signal;

[0012] S3: Output signal monitoring: Monitor the output signal of the driver in real time, and evaluate the signal quality of the real-time monitoring data. After the signal quality evaluation is completed, the driver control data is obtained;

[0013] S4: Driver control strategy formulation: Analyze the driver's working principle and performance based on the driver control data, and obtain the driver control strategy based on the analysis results;

[0014] S5: Driver control monitoring and early warning: Perform multi-channel output control on the laser driver according to the driver control strategy. During the multi-channel output control, perform abnormal judgment on the laser driver at the same time, and issue early warning prompts based on the judgment results.

[0015] Preferably, in S1, real-time data collection of power supply data of the laser driver is performed, and the collected real-time data is converted into a digital signal, including:

[0016] A voltage sensor, a current sensor and a temperature sensor are respectively installed at the power supply node of the laser driver;

[0017] Each sensor collects real-time data of the laser driver respectively. When collecting real-time data, the sensor signal is amplified, filtered and isolated through the signal processing network;

[0018] The conditioned analog signal is input into an analog-to-digital converter, and the analog signal of the sensor is converted into a digital signal through the analog-to-digital converter;

[0019] The digital signal includes a voltage digital signal, a current digital signal, a temperature digital signal, a power digital signal and a status signal;

[0020] The voltage digital signal, current digital signal, temperature digital signal, power digital signal and status signal are uniformly labeled as real-time power supply signals.

[0021] Preferably, in S2, the real-time power supply signal is modulated according to the working characteristics of the laser driver, including:

[0022] Retrieving the working characteristic data of the laser driver from the database, the working characteristic data including working voltage, current, power, frequency, temperature range, response time, modulation mode and control requirements, the modulation mode including analog modulation, digital modulation and PWM modulation;

[0023] Signal modulation includes frequency modulation, amplitude modulation, pulse width modulation and phase modulation;

[0024] The frequency modulation is to adjust the frequency of the input power signal to match the resonant frequency of the laser driver according to the operating frequency requirements of the laser driver;

[0025] Amplitude modulation is to control the output power of the laser by controlling the amplitude of the signal;

[0026] Pulse width modulation is to adjust the intensity and frequency of laser output by controlling the pulse width of the laser driver;

[0027] Phase modulation is to adjust the phase of the signal according to the working characteristics;

[0028] The signals modulated by frequency modulation, amplitude modulation, pulse width modulation and phase modulation are synthesized to obtain a modulated signal.

[0029] Preferably, processing the modulated signal in S2 includes:

[0030] The modulated signal is filtered by a stop filter, and after the signal is filtered, the signal is amplified according to the requirements of the laser driver;

[0031] Performing linearization or nonlinear correction on the amplified modulated signal;

[0032] After the modulation signal is linearized or nonlinearly corrected, the phase and time of the modulation signal are synchronized;

[0033] Use an isolation amplifier to isolate the phase- and time-synchronized modulated signal from the original signal source;

[0034] After isolation is completed, the driver output signal is obtained.

[0035] Preferably, the real-time monitoring of the driver output signal in S3 and the signal quality evaluation of the real-time monitoring data include:

[0036] The real-time monitoring process of the driver output signal includes:

[0037] A monitoring interface is set at the output end of the driver, and a high-speed sampling electronic device is used to continuously sample the driver output signal. The sampled signal is amplified or attenuated by a signal processing device, and the conditioned analog signal is converted into a digital signal by a high-precision analog-to-digital converter. The converted digital signal is subjected to real-time data analysis, and the real-time data analysis includes the monitoring of the amplitude, frequency, waveform and phase parameters of the signal;

[0038] The driver output signal is monitored in real time and then the signal quality is evaluated;

[0039] Evaluate real-time monitoring data based on preset signal quality criteria, including signal stability, noise level, harmonic content, and signal distortion;

[0040] Abnormal signals are identified based on the signal quality evaluation results, and the abnormal signals and normal information are uniformly marked as drive control data.

[0041] Preferably, the working principle and performance analysis of the driver according to the driver control data in S4 includes:

[0042] The working principle of the driver includes: analyzing the basic working principle of the driver, including power supply, signal modulation and output control; confirming the key performance indicators of the driver, including response time, stability and efficiency; confirming the functions and interrelationships of the various components of the driver;

[0043] The performance analysis of the drive includes: comparing the drive control data with the standard performance data and identifying the performance deviation value; analyzing the performance during signal modulation and processing, including modulation accuracy and signal synchronization; evaluating the stability and reliability of the output signal, and evaluating the performance changes under long-term operation.

[0044] Preferably, the working principle and performance analysis of the driver according to the driver control data in S4 further includes:

[0045] According to the working principle and performance analysis, the working principle analysis content and performance analysis content of the drive control data are obtained;

[0046] The working principle analysis includes the circuit topology and signal flow of the driver, the working mechanism of each sensor and actuator, the theoretical basis of power management, signal modulation and output control, and the interaction between the driver and the laser;

[0047] Performance analysis includes the driver's output signal characteristics, efficiency and stability, response time and dynamic range, performance under different working conditions, and failure mode and effect analysis;

[0048] The driver control strategy is generated based on the working principle analysis content and the performance analysis content for the driver control data.

[0049] Preferably, in S5, the laser driver is controlled for multiple outputs according to the driver control strategy, and abnormality judgment of the laser driver is performed simultaneously when the multiple outputs are controlled, including:

[0050] Extracting control parameters from the driver control strategy, including target power, frequency, pulse width and phase of each output;

[0051] Set corresponding parameters for each output channel according to the control parameters in the driver control strategy, use a multiplexer to control multiple output channels at the same time, and adjust the output signal of each channel in real time;

[0052] After the control parameters of each output channel are set, a monitoring module is installed on each output channel to monitor the quality of the output signal and the operating status of the driver in real time;

[0053] The monitoring data of the monitoring module include output power, frequency, waveform and temperature;

[0054] When the monitoring data is not within the preset threshold range, the monitoring data that is not within the preset range will be automatically marked as abnormal;

[0055] When the monitoring data is marked as abnormal, the early warning mechanism is automatically triggered, including sound and light alarm, control panel indication and remote early warning notification;

[0056] The warning data in the monitoring data includes the abnormality type, occurrence time, and affected output channels;

[0057] The driver control strategy is automatically adjusted and corrected according to the early warning data, and a secondary driver control strategy is obtained after the automatic adjustment and correction are completed.

[0058] Preferably, in S5, the laser driver is controlled to output multiple channels according to the driver control strategy, and abnormality judgment of the laser driver is performed simultaneously when the multiple channels are controlled to output multiple channels, and the method further includes:

[0059] When the monitoring data of each output channel is within the preset threshold range, the output power in the monitoring data of each output channel is retrieved; wherein the monitoring data includes output power, frequency, waveform and temperature;

[0060] The integrated power output quality parameters corresponding to the multiple output channels are obtained by using the difference between the output power in the monitoring data of each output channel and its corresponding standard output power;

[0061] The comprehensive power output quality parameter corresponding to the multiple output channels is obtained by the following formula:

[0062]

[0063] Where Q represents the comprehensive power output quality parameter corresponding to multiple output channels; n represents the total number of output channels; P bi represents the standard output power of the ith output channel; P i represents the actual output power of the i-th output channel; α i represents the weight coefficient corresponding to the output power of the i-th output channel; β i represents the weighted average value of the frequency, waveform and temperature of the i-th output channel; F i represents the frequency standard deviation of the i-th output channel; W i represents the standard deviation of the waveform offset amplitude of the i-th output channel; T i represents the standard deviation of the temperature signal of the i-th output channel; C 01 Indicates the preset waveform floating detection sensitivity; C 02 Indicates the preset temperature detection sensitivity; C 03 Indicates the preset power detection sensitivity;

[0064] Comparing the comprehensive power output quality parameter corresponding to the multiple output channels with a preset power output quality parameter threshold;

[0065] When the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than a preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved to determine the operation quality of the multiple output channels.

[0066] Preferably, when the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than a preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved to determine the operation quality of the multiple output channels, including:

[0067] When the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than a preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved;

[0068] Obtaining operation quality evaluation coefficients corresponding to the multiple output channels using the frequency, waveform and temperature in the monitoring data of each output channel combined with the comprehensive power output quality parameters corresponding to the multiple output channels;

[0069] The operation quality evaluation coefficient corresponding to the multiple output channels is obtained by the following formula:

[0070]

[0071] Where K represents the operation quality evaluation coefficient corresponding to multiple output channels; n represents the total number of output channels; F i represents the frequency standard deviation of the i-th output channel; W i represents the standard deviation of the waveform offset amplitude of the i-th output channel; T i represents the standard deviation of the temperature signal of the i-th output channel; Q represents the comprehensive power output quality parameter corresponding to multiple output channels; Q y Indicates the preset power output quality parameter threshold; W pi Indicates the waveform offset of the i-th output channel; T ci Indicates the temperature value in the monitoring data corresponding to the i-th output channel; F ci Represents the frequency value of the i-th output channel;

[0072] Comparing the operation quality evaluation coefficients corresponding to the multiple output channels with a preset coefficient threshold;

[0073] When the operation quality evaluation coefficient corresponding to the multiple output channels is lower than a preset coefficient threshold, it is determined that there is an abnormal risk in the overall operation of the multiple output channels, and an abnormal risk warning is issued.

[0074] Compared with the prior art, the present invention has the following beneficial effects:

[0075] 1. The multi-channel high-performance integrated laser driver driving method provided by the present invention can realize precise control of laser output through a combination of multiple modulation methods. By synchronizing the phase and time of the modulation signal, it is ensured that the multi-channel signals remain consistent during output, avoiding interference or distortion caused by phase differences between signals. The isolation amplifier is used for signal isolation, which can effectively avoid interference and coupling between the signal source and the laser driver.

[0076] 2. The multi-channel output high-performance integrated laser driver driving method provided by the present invention can generate personalized control strategies for specific application scenarios through in-depth performance analysis, so that the driver can perform better in special application environments. Through the analysis of failure modes and impacts, potential failure risks can be better predicted and managed, the maintenance efficiency of the system can be improved, and the risk of unexpected downtime can be reduced. Through continuous signal monitoring and quality evaluation, potential problems can be discovered and corrected in a timely manner, the probability of failure can be reduced, and the long-term reliability of the system can be improved.

[0077] 3. The multi-channel high-performance integrated laser driver driving method provided by the present invention installs a monitoring module on each output channel to monitor the quality of the output signal and the operating status of the driver in real time, provide instant feedback, ensure the reliability of the system, and automatically adjust and correct the driver control strategy according to the early warning data to ensure that the system can quickly recover to the optimal state after an abnormality occurs, thereby improving the system's adaptability. The secondary driver control strategy obtained by automatic adjustment and correction can further optimize the system performance, reduce manual intervention, and improve the intelligence level of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 It is a schematic diagram of the driving steps of the integrated laser driver of the present invention;

[0079] Figure 2 It is a schematic diagram of the driving process of the integrated laser driver of the present invention. DETAILED DESCRIPTION

[0080] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0081] In order to solve the problem in the prior art that the collected data of the laser driver is not further modulated, resulting in poor overall performance of the laser driver signal, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions:

[0082] A multi-channel output high-performance integrated laser driver driving method includes the following steps:

[0083] S1: Power data collection and management: collect power data of the laser driver in real time, convert the collected real-time data into digital signals, and mark them as real-time power signals after the conversion is completed;

[0084] Among them, converting analog signals into digital signals facilitates data storage, transmission and processing, and helps to achieve intelligent control and remote monitoring;

[0085] S2: Signal data modulation and processing: modulate the real-time power signal according to the working characteristics of the laser driver, and process the modulated signal to obtain the driver output signal;

[0086] Among them, by synchronizing the phase and time of the modulated signal, it is ensured that the multi-channel signals remain consistent when output, avoiding interference or distortion caused by phase differences between signals;

[0087] S3: Output signal monitoring: Monitor the output signal of the driver in real time, and evaluate the signal quality of the real-time monitoring data. After the signal quality evaluation is completed, the driver control data is obtained;

[0088] Among them, through continuous signal monitoring and quality assessment, potential problems can be discovered and corrected in a timely manner, the probability of failure can be reduced, and the long-term reliability of the system can be improved;

[0089] S4: Driver control strategy formulation: Analyze the driver's working principle and performance based on the driver control data, and obtain the driver control strategy based on the analysis results;

[0090] Among them, clarifying the interaction between the driver and the laser can improve the system's integration capabilities and ensure coordinated work between different components;

[0091] S5: Driver control monitoring and early warning: Perform multi-channel output control on the laser driver according to the driver control strategy, and simultaneously perform abnormal judgment on the laser driver when performing multi-channel output control, and issue early warning prompts based on the judgment results;

[0092] Among them, the drive control strategy is automatically adjusted and corrected according to the early warning data to ensure that the system can quickly recover to the optimal state after an abnormality occurs, thereby improving the system's adaptive ability.

[0093] In S1, the power supply data of the laser driver is collected in real time and converted into digital signals, including:

[0094] A voltage sensor, a current sensor and a temperature sensor are respectively installed at the power supply node of the laser driver;

[0095] Each sensor collects real-time data of the laser driver respectively. When collecting real-time data, the sensor signal is amplified, filtered and isolated through the signal processing network;

[0096] The conditioned analog signal is input into an analog-to-digital converter, and the analog signal of the sensor is converted into a digital signal through the analog-to-digital converter;

[0097] The digital signal includes a voltage digital signal, a current digital signal, a temperature digital signal, a power digital signal and a status signal;

[0098] The voltage digital signal, current digital signal, temperature digital signal, power digital signal and status signal are uniformly labeled as real-time power supply signals.

[0099] Specifically, by installing voltage, current and temperature sensors, the laser driver can be accurately monitored to ensure that it operates under optimal conditions, improve performance and stability, obtain data on key parameters in real time, and be able to detect abnormal conditions in a timely manner, which helps to respond quickly and take corrective measures to avoid equipment damage or performance degradation. The sensor signal is amplified, filtered and isolated through the signal processing network to improve signal accuracy and stability, reduce noise interference, ensure data reliability, convert analog signals into digital signals, facilitate data storage, transmission and processing, and help achieve intelligent control and remote monitoring. By obtaining multiple signals such as voltage, current, temperature, power and status, a comprehensive analysis can be performed to fully understand the operating status of the laser driver, which helps to optimize system performance and can significantly improve the performance, reliability and safety of the laser driver, providing users with a higher quality experience.

[0100] In S2, the real-time power signal is modulated according to the working characteristics of the laser driver, including:

[0101] Retrieving the working characteristic data of the laser driver from the database, the working characteristic data including working voltage, current, power, frequency, temperature range, response time, modulation mode and control requirements, the modulation mode including analog modulation, digital modulation and PWM modulation;

[0102] Signal modulation includes frequency modulation, amplitude modulation, pulse width modulation and phase modulation;

[0103] The frequency modulation is to adjust the frequency of the input power signal to match the resonant frequency of the laser driver according to the operating frequency requirements of the laser driver;

[0104] Amplitude modulation is to control the output power of the laser by controlling the amplitude of the signal;

[0105] Pulse width modulation is to adjust the intensity and frequency of laser output by controlling the pulse width of the laser driver;

[0106] Phase modulation is to adjust the phase of the signal according to the working characteristics;

[0107] The signals modulated by frequency modulation, amplitude modulation, pulse width modulation and phase modulation are synthesized to obtain a modulated signal.

[0108] Specifically, through the combination of multiple modulation methods, precise control of laser output can be achieved, including parameters such as power, frequency and phase. This precise control capability helps to improve the performance and adaptability of the laser. By matching the resonant frequency of the laser driver through frequency modulation, the stability of the system can be improved, and the power loss and instability caused by frequency mismatch can be reduced. The combination of amplitude modulation and pulse width modulation can optimize the output efficiency of the laser and reduce unnecessary power consumption while ensuring the required output intensity and frequency. Phase modulation can be used to reduce interference between adjacent channels, especially in the case of multi-channel output, which helps to improve the signal quality and the overall performance of the system. By synthesizing the modulated signal, the signal quality can be optimized, distortion and noise can be reduced, and the system performance and signal integrity can be improved. Multiple modulation methods are particularly suitable for high-performance applications that require complex signal processing, such as communications, precision measurement, and high-resolution imaging.

[0109] The modulated signal is processed in S2, including:

[0110] The modulated signal is filtered by a stop filter, and after the signal is filtered, the signal is amplified according to the requirements of the laser driver;

[0111] Performing linearization or nonlinear correction on the amplified modulated signal;

[0112] After the modulation signal is linearized or nonlinearly corrected, the phase and time of the modulation signal are synchronized;

[0113] Use an isolation amplifier to isolate the phase- and time-synchronized modulated signal from the original signal source;

[0114] After isolation is completed, the driver output signal is obtained.

[0115] Specifically, the signal is filtered by a stop filter to effectively remove unnecessary high-frequency noise and interference, improve the purity and quality of the signal, amplify the signal according to the needs of the laser driver, ensure that the signal has sufficient amplitude to drive the laser, improve the responsiveness of the system, and perform linearization or nonlinear correction on the amplified modulated signal to compensate for distortion in the signal transmission process and ensure that the output signal is highly consistent with the expected target. By synchronizing the phase and time of the modulated signal, it is ensured that multiple signals remain consistent when output, avoiding interference or distortion caused by phase differences between signals. Using an isolation amplifier for signal isolation can effectively avoid interference and coupling between the signal source and the laser driver, and protect the stability and safety of the signal source. Signal isolation can prevent voltage or current from damaging signal equipment, thereby improving the overall safety of the system.

[0116] In order to solve the problem in the prior art that the signal data of the laser driver is not correlated with the laser driver itself, which leads to an imperfect control strategy for the laser driver, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions:

[0117] The driver output signal is monitored in real time in S3, and the signal quality is evaluated based on the real-time monitoring data, including:

[0118] The real-time monitoring process of the driver output signal includes:

[0119] A monitoring interface is set at the output end of the driver, and a high-speed sampling electronic device is used to continuously sample the driver output signal. The sampled signal is amplified or attenuated by a signal processing device, and the conditioned analog signal is converted into a digital signal by a high-precision analog-to-digital converter. The converted digital signal is subjected to real-time data analysis, and the real-time data analysis includes the monitoring of the amplitude, frequency, waveform and phase parameters of the signal;

[0120] The driver output signal is monitored in real time and then the signal quality is evaluated;

[0121] Evaluate real-time monitoring data based on preset signal quality criteria, including signal stability, noise level, harmonic content, and signal distortion;

[0122] Abnormal signals are identified based on the signal quality evaluation results, and the abnormal signals and normal information are uniformly marked as drive control data.

[0123] Specifically, through high-speed sampling electronic devices and high-precision analog-to-digital converters, high-precision monitoring of the driver output signal can be achieved to ensure the accuracy and reliability of the collected data. Real-time data analysis covers not only the amplitude and frequency of the signal, but also the monitoring of waveform and phase parameters, providing comprehensive signal feature analysis, which helps to gain an in-depth understanding of the dynamic characteristics of the signal, and evaluates the signal's stability, noise level, harmonic content and signal distortion to ensure that the output signal meets the preset quality standards and improve the overall performance of the system. Real-time monitoring and analysis can quickly identify abnormal signals and provide timely information support for troubleshooting and performance optimization. Through continuous signal monitoring and quality assessment, potential problems can be discovered and corrected in a timely manner, reducing the probability of failures and improving the long-term reliability of the system. It is suitable for multi-channel output laser drivers and can monitor the signal quality of multiple channels at the same time to meet the needs of complex systems.

[0124] Analyze the working principle and performance of the drive according to the drive control data in S4, including:

[0125] The working principle of the driver includes: analyzing the basic working principle of the driver, including power supply, signal modulation and output control; confirming the key performance indicators of the driver, including response time, stability and efficiency; confirming the functions and interrelationships of the various components of the driver;

[0126] The performance analysis of the drive includes: comparing the drive control data with the standard performance data and identifying the performance deviation value; analyzing the performance during signal modulation and processing, including modulation accuracy and signal synchronization; evaluating the stability and reliability of the output signal, and evaluating the performance changes under long-term operation.

[0127] According to the working principle and performance analysis, the working principle analysis content and performance analysis content of the drive control data are obtained;

[0128] The working principle analysis includes the circuit topology and signal flow of the driver, the working mechanism of each sensor and actuator, the theoretical basis of power management, signal modulation and output control, and the interaction between the driver and the laser;

[0129] Performance analysis includes the driver's output signal characteristics, efficiency and stability, response time and dynamic range, performance under different working conditions, and failure mode and effect analysis;

[0130] The driver control strategy is generated based on the working principle analysis content and the performance analysis content for the driver control data.

[0131] Specifically, through detailed circuit topology and signal flow analysis, the precise operation of each component and the reliability of the overall system can be ensured. This helps to reduce the occurrence of failures and improve the stability of the system. The confirmation and analysis of key performance indicators (such as response time, stability and efficiency) can help identify and optimize the performance of the driver and ensure that it can maintain efficient operation under different conditions. Through in-depth performance analysis, personalized control strategies for specific application scenarios can be generated, so that the driver can perform better in special application environments. Analysis of performance during signal modulation and processing can improve modulation accuracy and signal synchronization, thereby improving the quality and consistency of laser output. Evaluation of performance changes under long-term operation can detect potential problems in advance and make adjustments to ensure the long-term stability and reliability of the system. Through the analysis of failure modes and effects, potential failure risks can be better predicted and managed, the maintenance efficiency of the system can be improved, and the risk of unexpected downtime can be reduced. Through a comprehensive evaluation of output signal characteristics, efficiency, response time and dynamic range, the performance of the driver under various working conditions can be better understood, helping to optimize the design and operation strategy, clarifying the interaction between the driver and the laser, and improving the system's integration capabilities, ensuring coordinated work between different components, and improving the performance of the overall system.

[0132] In order to solve the problem that the specific parameters of the multiple output channels of the laser driver are not set and monitored in the prior art, thereby reducing the abnormality prediction ability of the multiple output channels, please refer to Figure 1 and Figure 2 , this embodiment provides the following technical solutions:

[0133] In S5, the laser driver is controlled for multiple outputs according to the driver control strategy. When the multiple outputs are controlled, the abnormality of the laser driver is judged at the same time, including:

[0134] Extracting control parameters from the driver control strategy, including target power, frequency, pulse width and phase of each output;

[0135] Set corresponding parameters for each output channel according to the control parameters in the driver control strategy, use a multiplexer to control multiple output channels at the same time, and adjust the output signal of each channel in real time;

[0136] After the control parameters of each output channel are set, a monitoring module is installed on each output channel to monitor the quality of the output signal and the operating status of the driver in real time;

[0137] The monitoring data of the monitoring module include output power, frequency, waveform and temperature;

[0138] When the monitoring data is not within the preset threshold range, the monitoring data that is not within the preset range will be automatically marked as abnormal;

[0139] When the monitoring data is marked as abnormal, the early warning mechanism is automatically triggered, including sound and light alarm, control panel indication and remote early warning notification;

[0140] The warning data in the monitoring data includes the abnormality type, occurrence time, and affected output channels;

[0141] The driver control strategy is automatically adjusted and corrected according to the early warning data, and a secondary driver control strategy is obtained after the automatic adjustment and correction are completed.

[0142] Specifically, by extracting and setting the target power, frequency, pulse width and phase of each output, precise control of each output channel is achieved to meet the needs of different applications. Multiple output channels can be controlled simultaneously by using a multiplexer, which improves the work efficiency and flexibility of the system and adapts to complex multi-channel application scenarios. A monitoring module is installed on each output channel to monitor the quality of the output signal and the operating status of the driver in real time, provide instant feedback, and ensure the reliability of the system. The monitoring data includes output power, frequency, waveform and temperature, etc., providing comprehensive output signal characteristic information, which is helpful for in-depth analysis and optimization of driver performance. Through sound and light alarms, control panel indications and remote early warning notifications, users are promptly reminded of abnormal conditions, improving the safety and response speed of the system. The early warning data contains the type of abnormality, the time of occurrence and the affected output channel information, which is convenient for users to quickly locate and deal with problems. The driver control strategy is automatically adjusted and corrected according to the early warning data to ensure that the system can quickly recover to the best state after the abnormality occurs, and improve the system's adaptive ability. The secondary driver control strategy obtained by automatic adjustment and correction can further optimize the system performance, reduce manual intervention, and improve the intelligence level of the system. Through real-time monitoring, automatic early warning and adjustment, the stability and reliability of the system are significantly improved, the service life of the equipment is extended, and the maintenance cost is reduced.

[0143] Specifically, in S5, the laser driver is controlled to output multiple channels according to the driver control strategy, and abnormality judgment of the laser driver is performed simultaneously when the multiple channels are controlled to output multiple channels, which also includes:

[0144] When the monitoring data of each output channel is within the preset threshold range, the output power in the monitoring data of each output channel is retrieved; wherein the monitoring data includes output power, frequency, waveform and temperature;

[0145] The integrated power output quality parameters corresponding to the multiple output channels are obtained by using the difference between the output power in the monitoring data of each output channel and its corresponding standard output power;

[0146] The comprehensive power output quality parameter corresponding to the multiple output channels is obtained by the following formula:

[0147]

[0148] Where Q represents the comprehensive power output quality parameter corresponding to multiple output channels; n represents the total number of output channels; P bi represents the standard output power of the ith output channel; P i represents the actual output power of the i-th output channel; α i represents the weight coefficient corresponding to the output power of the i-th output channel; β i represents the weighted average value of the frequency, waveform and temperature of the i-th output channel; F i represents the frequency standard deviation of the i-th output channel; W i represents the standard deviation of the waveform offset amplitude of the i-th output channel; T i represents the standard deviation of the temperature signal of the i-th output channel; C 01 Indicates the preset waveform floating detection sensitivity; C 02 Indicates the preset temperature detection sensitivity; C 03 Indicates the preset power detection sensitivity;

[0149] Comparing the comprehensive power output quality parameter corresponding to the multiple output channels with a preset power output quality parameter threshold;

[0150] When the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than the preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved to determine the operation quality of the multiple output channels.

[0151] The technical effect of the above technical solution is: the solution can timely detect abnormal conditions of the laser driver by real-time monitoring of the monitoring data (including output power, frequency, waveform and temperature) of each output channel. This real-time monitoring mechanism helps to quickly respond to and deal with potential problems, thereby improving the stability and reliability of the system. By calculating the comprehensive power output quality parameter Q corresponding to multiple output channels, the solution can comprehensively evaluate the power output quality of the laser driver. This parameter comprehensively considers multiple factors such as output power, frequency, waveform and temperature, and weights them through weight coefficients to make the evaluation results more accurate and comprehensive. The weight coefficient is introduced in the solution, so that the degree of influence of different output channels and different monitoring parameters in the comprehensive evaluation can be flexibly adjusted. This design helps to fine-tune the evaluation results according to actual needs and improve the accuracy and practicality of the evaluation. When the comprehensive power output quality parameter is not lower than the preset power output quality parameter threshold, the solution will further retrieve the frequency, waveform and temperature in the monitoring data of each output channel to determine the operating quality of the multiple output channels. This judgment mechanism helps to timely discover and deal with potential problems that affect the operating quality, ensuring that the laser driver can work continuously and stably. Through real-time monitoring, comprehensive evaluation, and operation quality determination, the solution can promptly detect and resolve problems in the laser driver's multi-channel output control process, thereby optimizing and improving the overall performance of the system. This helps reduce failure rates, improve production efficiency, and provide users with a better experience.

[0152] In summary, the technical effects of this technical solution in terms of performance indicators are mainly reflected in real-time monitoring and abnormal judgment, comprehensive power output quality evaluation, flexible application of weight coefficients, operation quality judgment, and performance optimization and improvement. These effects work together in the multi-channel output control process of the laser driver, which helps to improve the stability and reliability of the system and optimize the overall performance.

[0153] Specifically, when the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than a preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved to determine the operation quality of the multiple output channels, including:

[0154] When the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than a preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved;

[0155] Obtaining operation quality evaluation coefficients corresponding to the multiple output channels using the frequency, waveform and temperature in the monitoring data of each output channel combined with the comprehensive power output quality parameters corresponding to the multiple output channels;

[0156] The operation quality evaluation coefficient corresponding to the multiple output channels is obtained by the following formula:

[0157]

[0158] Where K represents the operation quality evaluation coefficient corresponding to multiple output channels; n represents the total number of output channels; F i represents the frequency standard deviation of the i-th output channel; W i represents the standard deviation of the waveform offset amplitude of the i-th output channel; T i represents the standard deviation of the temperature signal of the i-th output channel; Q represents the comprehensive power output quality parameter corresponding to multiple output channels; Q y Indicates the preset power output quality parameter threshold; W pi Indicates the waveform offset of the i-th output channel; T ci Indicates the temperature value in the monitoring data corresponding to the i-th output channel; F ci Represents the frequency value of the i-th output channel;

[0159] Comparing the operation quality evaluation coefficients corresponding to the multiple output channels with a preset coefficient threshold;

[0160] When the operation quality evaluation coefficient corresponding to the multiple output channels is lower than a preset coefficient threshold, it is determined that there is an abnormal risk in the overall operation of the multiple output channels, and an abnormal risk warning is issued.

[0161] The technical effect of the above technical solution is: the solution not only considers the comprehensive power output quality parameters, but also combines the monitoring data of multiple dimensions such as frequency, waveform and temperature to comprehensively evaluate the operation quality of multiple output channels. This multi-dimensional evaluation method can more accurately reflect the actual operation status of the laser driver and improve the accuracy and reliability of the evaluation. By calculating the operation quality evaluation coefficient K corresponding to the multiple output channels and comparing it with the preset coefficient threshold, the solution can realize the refined monitoring of the operation quality of multiple output channels. When the K value is lower than the preset threshold, the system can issue an abnormal risk warning in time to remind the operator to pay attention and take corresponding measures to avoid the occurrence of potential faults. Although the application of weight coefficients is not explicitly mentioned in the solution, sufficient flexibility is reserved to adjust the influence of relevant parameters (such as standard deviation, offset, etc.) in the formula according to actual needs. In addition, through the preset power output quality parameter threshold and coefficient threshold, flexible adaptation to different application scenarios and performance requirements can be achieved. The solution realizes real-time monitoring of multiple output channels and can dynamically obtain and process monitoring data. This real-time monitoring mechanism helps to discover and deal with potential problems in a timely manner and improve the response speed and stability of the system. Through comprehensive operation quality evaluation and refined abnormal risk warning, this solution helps to timely discover and solve problems existing in the laser driver's multi-channel output control process. This can not only optimize the overall performance of the system, but also effectively prevent the occurrence of failures, reduce maintenance costs and production losses. Combining the above effects, this technical solution can significantly improve the reliability of the laser driver's multi-channel output control system. Through a comprehensive monitoring, evaluation and early warning mechanism, it ensures that the system can operate continuously and stably, providing users with more reliable services.

[0162] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0163] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A multi-channel output high-performance integrated laser driver driving method, characterized in that: The steps include: S1: Power data collection and management: collect power data of the laser driver in real time, convert the collected real-time data into digital signals, and mark them as real-time power signals after the conversion is completed; S2: Signal data modulation and processing: modulate the real-time power signal according to the working characteristics of the laser driver, and process the modulated signal to obtain the driver output signal; S3: Output signal monitoring: Monitor the output signal of the driver in real time, and evaluate the signal quality of the real-time monitoring data. After the signal quality evaluation is completed, the driver control data is obtained; S4: Driver control strategy formulation: Analyze the driver's working principle and performance based on the driver control data, and obtain the driver control strategy based on the analysis results; S5: Driver control monitoring and early warning: Perform multi-channel output control on the laser driver according to the driver control strategy, and simultaneously perform abnormal judgment on the laser driver when performing multi-channel output control, and issue early warning prompts based on the judgment results; When the monitoring data of each output channel is within the preset threshold range, the output power in the monitoring data of each output channel is retrieved; wherein the monitoring data includes output power, frequency, waveform and temperature; The integrated power output quality parameters corresponding to the multiple output channels are obtained by using the difference between the output power in the monitoring data of each output channel and its corresponding standard output power; Comparing the comprehensive power output quality parameter corresponding to the multiple output channels with a preset power output quality parameter threshold; When the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than a preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved to determine the operation quality of the multiple output channels.

2. The multi-output high-performance integrated laser driver driving method according to claim 1, characterized in that: In S1, the power supply data of the laser driver is collected in real time and converted into digital signals, including: A voltage sensor, a current sensor and a temperature sensor are respectively installed at the power supply node of the laser driver; Each sensor collects real-time data of the laser driver respectively. When collecting real-time data, the sensor signal is amplified, filtered and isolated through the signal processing network; The conditioned analog signal is input into an analog-to-digital converter, and the analog signal of the sensor is converted into a digital signal through the analog-to-digital converter; The digital signal includes a voltage digital signal, a current digital signal, a temperature digital signal, a power digital signal and a status signal; The voltage digital signal, current digital signal, temperature digital signal, power digital signal and status signal are uniformly labeled as real-time power supply signals.

3. The multi-output high-performance integrated laser driver driving method according to claim 2, characterized in that: In S2, the real-time power signal is modulated according to the working characteristics of the laser driver, including: Retrieving the working characteristic data of the laser driver from the database, the working characteristic data including working voltage, current, power, frequency, temperature range, response time, modulation mode and control requirements, the modulation mode including analog modulation, digital modulation and PWM modulation; Signal modulation includes frequency modulation, amplitude modulation, pulse width modulation and phase modulation; The frequency modulation is to adjust the frequency of the input power signal to match the resonant frequency of the laser driver according to the operating frequency requirements of the laser driver; Amplitude modulation is to control the output power of the laser by controlling the amplitude of the signal; Pulse width modulation is to adjust the intensity and frequency of laser output by controlling the pulse width of the laser driver; Phase modulation is to adjust the phase of the signal according to the working characteristics; The signals modulated by frequency modulation, amplitude modulation, pulse width modulation and phase modulation are synthesized to obtain a modulated signal.

4. The multi-output high-performance integrated laser driver driving method according to claim 3, characterized in that: The modulated signal is processed in S2, including: The modulated signal is filtered by a stop filter, and after the signal is filtered, the signal is amplified according to the requirements of the laser driver; Performing linearization or nonlinear correction on the amplified modulated signal; After the modulation signal is linearized or nonlinearly corrected, the phase and time of the modulation signal are synchronized; Use an isolation amplifier to isolate the phase- and time-synchronized modulated signal from the original signal source; After isolation is completed, the driver output signal is obtained.

5. The multi-output high-performance integrated laser driver driving method according to claim 4, characterized in that: The driver output signal is monitored in real time in S3, and the signal quality is evaluated based on the real-time monitoring data, including: The real-time monitoring process of the driver output signal includes: A monitoring interface is set at the output end of the driver, and a high-speed sampling electronic device is used to continuously sample the driver output signal. The sampled signal is amplified or attenuated by a signal processing device, and the conditioned analog signal is converted into a digital signal by a high-precision analog-to-digital converter. The converted digital signal is subjected to real-time data analysis, which includes monitoring of the amplitude, frequency, waveform and phase parameters of the signal; The driver output signal is monitored in real time and then the signal quality is evaluated; Evaluate real-time monitoring data based on preset signal quality criteria, including signal stability, noise level, harmonic content, and signal distortion; Abnormal signals are identified based on the signal quality evaluation results, and the abnormal signals and normal information are uniformly marked as drive control data.

6. The multi-output high-performance integrated laser driver driving method according to claim 5, characterized in that: Analyze the working principle and performance of the drive according to the drive control data in S4, including: The working principle analysis of the driver includes power supply, signal modulation and output control; the key performance indicators of the driver are confirmed, including response time, stability and efficiency; the functions and interrelationships of the various components of the driver are confirmed; The performance analysis of the drive includes: comparing the drive control data with the standard performance data and identifying the performance deviation value; analyzing the performance during signal modulation and processing, including modulation accuracy and signal synchronization; evaluating the stability and reliability of the output signal, and evaluating the performance changes under long-term operation.

7. The multi-output high-performance integrated laser driver driving method according to claim 6, characterized in that: The working principle and performance analysis of the drive according to the drive control data in S4 also includes: According to the working principle and performance analysis, the working principle analysis content and performance analysis content of the drive control data are obtained; The working principle analysis includes the circuit topology and signal flow of the driver, the working mechanism of each sensor and actuator, the theoretical basis of power management, signal modulation and output control, and the interaction between the driver and the laser; Performance analysis includes the driver's output signal characteristics, efficiency and stability, response time and dynamic range, performance under different working conditions, and failure mode and effect analysis; The driver control strategy is generated based on the working principle analysis content and the performance analysis content for the driver control data.

8. The multi-channel high-performance integrated laser driver driving method according to claim 7, characterized in that: In S5, the laser driver is controlled for multiple outputs according to the driver control strategy. When the multiple outputs are controlled, the abnormality of the laser driver is judged at the same time, including: Extracting control parameters from the driver control strategy, including target power, frequency, pulse width and phase of each output; Set corresponding parameters for each output channel according to the control parameters in the driver control strategy, use a multiplexer to control multiple output channels at the same time, and adjust the output signal of each channel in real time; After the control parameters of each output channel are set, a monitoring module is installed on each output channel to monitor the quality of the output signal and the operating status of the driver in real time; The monitoring data of the monitoring module include output power, frequency, waveform and temperature; When the monitoring data is not within the preset threshold range, the monitoring data that is not within the preset range will be automatically marked as abnormal; When the monitoring data is marked as abnormal, the early warning mechanism is automatically triggered, including sound and light alarm, control panel indication and remote early warning notification; The warning data in the monitoring data includes the abnormality type, occurrence time, and affected output channels; The driver control strategy is automatically adjusted and corrected according to the early warning data, and a secondary driver control strategy is obtained after the automatic adjustment and correction are completed.

9. The multi-output high-performance integrated laser driver driving method according to claim 8, characterized in that: In S5, the laser driver is controlled by multiple outputs according to the driver control strategy, and abnormality judgment of the laser driver is performed simultaneously when the multiple outputs are controlled, which also includes: The comprehensive power output quality parameter corresponding to the multiple output channels is obtained by the following formula: Where Q represents the comprehensive power output quality parameter corresponding to multiple output channels; n represents the total number of output channels; P bi represents the standard output power of the ith output channel; P i represents the actual output power of the i-th output channel; α i represents the weight coefficient corresponding to the output power of the i-th output channel; β i represents the weighted average value of the frequency, waveform and temperature of the i-th output channel; F i represents the frequency standard deviation of the i-th output channel; W i represents the standard deviation of the waveform offset amplitude of the i-th output channel; T i represents the standard deviation of the temperature signal of the i-th output channel; C 01 Indicates the preset waveform floating detection sensitivity; C 02 Indicates the preset temperature detection sensitivity; C 03 Indicates the preset power detection sensitivity.

10. The multi-output high-performance integrated laser driver driving method according to claim 8, characterized in that: When the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than the preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved to determine the operation quality of the multiple output channels, including: When the comprehensive power output quality parameter corresponding to the multiple output channels is not lower than a preset power output quality parameter threshold, the frequency, waveform and temperature in the monitoring data of each output channel are retrieved; Obtaining operation quality evaluation coefficients corresponding to the multiple output channels using the frequency, waveform and temperature in the monitoring data of each output channel combined with the comprehensive power output quality parameters corresponding to the multiple output channels; The operation quality evaluation coefficient corresponding to the multiple output channels is obtained by the following formula: Where K represents the operation quality evaluation coefficient corresponding to multiple output channels; n represents the total number of output channels; F i represents the frequency standard deviation of the i-th output channel; W i represents the standard deviation of the waveform offset amplitude of the i-th output channel; T i represents the standard deviation of the temperature signal of the i-th output channel; Q represents the comprehensive power output quality parameter corresponding to multiple output channels; Q y Indicates the preset power output quality parameter threshold; W pi Indicates the waveform offset of the i-th output channel; T ci Indicates the temperature value in the monitoring data corresponding to the i-th output channel; F ci Represents the frequency value of the i-th output channel; Comparing the operation quality evaluation coefficients corresponding to the multiple output channels with a preset coefficient threshold; When the operation quality evaluation coefficient corresponding to the multiple output channels is lower than a preset coefficient threshold, it is determined that there is an abnormal risk in the overall operation of the multiple output channels, and an abnormal risk warning is issued.

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