Lightning stroke current waveform monitoring method and device, electronic equipment and storage medium

Abstract

The invention provides a lightning stroke current waveform monitoring method and device, electronic equipment and a storage medium, and belongs to the technical field of lightning monitoring. According to the lightning stroke current waveform monitoring method provided by the embodiment of the invention, the broadband, high-sensitivity and wide-range current sensor is adopted, so that lightning stroke current waveform signals in different frequency ranges from approximate direct current to dozens of MHz can be sensed and accurately recorded; a high-precision time service method based on Beidou and GPS dual-mode pulse per second alignment and high-stability crystal oscillator counting is utilized to realize high-precision synchronization of lightning stroke time, and a multi-parameter waveform parameter extraction method is adopted to automatically calculate important parameters such as a waveform peak value, polarity, rising edge time, wave head gradient, charge quantity and specific energy. The technical problem of poor comprehensiveness and accuracy of lightning stroke current detection in the prior art can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning monitoring, and in particular to a lightning current waveform monitoring method, device, electronic equipment and storage medium. Background Art

[0002] As one of the most spectacular weather phenomena in nature, lightning not only has a huge impact on human activities with its huge energy, but is also one of the important external factors threatening the safe and stable operation of the power system. Lightning is a serious hazard that can not only directly damage power facilities, but also cause widespread failures in the power system, causing significant losses to the social economy and people's lives. Therefore, accurately monitoring the characteristics of lightning current is of great significance for preventing lightning disasters and improving the stability and safety of the power system.

[0003] Lightning monitoring technology is an important means to understand and analyze lightning phenomena. Existing technologies mainly include direct measurement and telemetry. Direct measurement refers to installing a measuring device directly on the path of the lightning current to record the current waveform during the lightning strike in real time. Telemetry, on the other hand, indirectly infers the polarity and current intensity of the lightning current by detecting the electromagnetic wave signal generated by lightning.

[0004] The telemetry method used for detection is not accurate enough for the collected lightning current and is difficult to calibrate due to the lack of characteristic inversion of the current waveform, which limits the use of its detection results in certain precise application scenarios. In terms of direct measurement of lightning current, existing technologies often have single functions and are difficult to capture and record the entire process of the lightning current waveform, resulting in the possible omission of important waveform information. This results in poor comprehensiveness and accuracy of lightning current detection. Summary of the invention

[0005] The embodiments of the present invention provide a lightning current waveform monitoring method, device, electronic device and computer storage medium, which can solve the technical problems of poor comprehensiveness and accuracy of lightning current detection in the prior art. The technical solution is as follows: In a first aspect, an embodiment of the present invention provides a lightning current waveform monitoring method, comprising: Responding to and collecting lightning current based on the photoelectric information of lightning, wherein the photoelectric information includes the luminous signal and current intensity of lightning; Based on the luminous signal and the current intensity, waveform data of the lightning current is obtained by plotting; Performing timing on the waveform data of the lightning current to align the second pulses of the waveform data; Waveform parameters of the lightning current are extracted, and the waveform parameters include peak value, polarity, rising edge time, wave head steepness, charge amount and specific energy.

[0006] Optionally, the responding to and collecting lightning current based on the photoelectric information of lightning includes: The instantaneous luminous signal generated by the lightning is detected by using a photodiode to wake up the current sensor in a dormant state to collect the lightning current.

[0007] Optionally, the step of responding to and collecting lightning current based on the photoelectric information of lightning further includes: The current sensor is used to detect the current intensity of the lightning current. When the current intensity is greater than the current trigger threshold, the current sensor is used to collect the lightning current.

[0008] Optionally, the current sensor includes multiple range channels, the current amplitudes corresponding to the multiple range channels are different in size and increase sequentially, and the current sensor collects lightning currents with different current intensities through the multiple range channels.

[0009] Optionally, the timing of the waveform data of the lightning current includes: The waveform data of the lightning current is aligned with second pulses based on the Beidou and GPS dual-mode clock system.

[0010] Optionally, the lightning current waveform monitoring method further includes storing and remotely transmitting the waveform data and the waveform parameters. Storing and remotely transmitting the waveform data and the waveform parameters.

[0011] In a second aspect, the present invention provides a monitoring device, comprising: A signal acquisition module, used to respond to and acquire the lightning current based on the photoelectric information of the lightning to obtain the waveform data of the lightning current, wherein the photoelectric information includes the luminous signal and current intensity of the lightning; A waveform acquisition module, used for obtaining waveform data of a lightning current based on the luminous signal and the current intensity; A timing module, used for timing the waveform data of the lightning current, so as to align the second pulses of the waveform data; The waveform parameter extraction module is used to extract waveform parameters of the lightning current, wherein the waveform parameters include peak value, polarity, rising edge time, wave head steepness, charge amount and specific energy.

[0012] Optionally, the signal acquisition module includes a photodiode and a current sensor, the current sensor is configured to be in a dormant state under normal circumstances, and the photodiode is configured to convert the luminous signal into an electrical signal indicating awakening the current sensor to switch to a collection and monitoring state after detecting the instantaneous luminous signal of the lightning.

[0013] Optionally, the current sensor is configured to collect the lightning current when the current intensity of the detected lightning current is greater than a current trigger threshold, so as to obtain waveform data of the lightning current.

[0014] Optionally, the waveform parameter extraction module is configured to automatically enter a sleep state when the current sensor is in a sleep state; when the current sensor is awakened and converted to a collection monitoring state, it is synchronously awakened to extract the waveform parameters of the lightning current.

[0015] Optionally, it also includes a data storage and detection module for storing and remotely transmitting the waveform data and the waveform parameters.

[0016] Optionally, a monitoring module is also included for online monitoring of the operating status and working status information of the signal acquisition module, the waveform acquisition module, the timing module, the waveform parameter extraction module and the data storage and detection module, and providing graphic feedback to the staff.

[0017] In a third aspect, the present invention further provides an electronic device, comprising: processor; a memory for storing instructions executable by a processor; Wherein, the processor is configured to execute the lightning current waveform monitoring method described in the first aspect above.

[0018] In a fourth aspect, the present invention further provides a storage medium having computer instructions stored thereon, wherein the computer instructions, when executed by a processor, implement the lightning current waveform monitoring method described in the first aspect above.

[0019] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least: By adopting wide-band, high-sensitivity and large-range current sensors, it is possible to sense and accurately record lightning current waveform signals in different frequency ranges from near DC to tens of MHz, covering the amplitude range from several amperes to hundreds of kiloamperes, effectively improving the accuracy and application scope of lightning current monitoring.

[0020] Furthermore, through the coordinated triggering method of light-sensitive triggering and current threshold triggering, the corresponding current sensor 12 and other acquisition devices can be quickly awakened from the sleep state to the acquisition monitoring state at the moment of lightning strike. This mechanism ensures the capture of lightning strike events under extreme or different conditions, thereby achieving monitoring without signal omission. At the same time, it also reduces the hardware power consumption of the corresponding acquisition equipment and reduces the overall energy consumption.

[0021] Furthermore, by utilizing a high-precision timing method based on Beidou and GPS dual-mode second pulse alignment and high-stable crystal oscillator counting, high-precision synchronization of lightning strike time can be achieved, with a timing accuracy of up to 20 nanoseconds, thereby achieving high-precision time synchronization of lightning current waveforms.

[0022] Furthermore, the multi-parameter waveform parameter extraction method adopted in the embodiment of the invention can automatically calculate important parameters such as waveform peak, polarity, rising edge time, wave head steepness, charge amount and specific energy, thereby solving the technical problem of poor comprehensiveness of lightning current detection in the prior art.

[0023] Finally, the acquired data can be sent to the monitoring software system via wired or wireless networks, realizing remote transmission and analysis of lightning strike data. This not only improves the efficiency of data processing, but also facilitates users to monitor and analyze lightning strike events at different locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 is a flow chart of a lightning current waveform monitoring method provided by an embodiment of the present invention; Figure 2 It is a lightning current waveform diagram provided by an embodiment of the present invention; Figure 3 is a system architecture diagram of a monitoring module provided by an embodiment of the present invention; Figure 4 is a structural block diagram of a monitoring device provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of a control structure of an electronic device provided by an embodiment of the present invention.

[0026] In the figure: 1-Signal acquisition module; 2-Waveform acquisition module; 3-Timing module; 4-Waveform parameter extraction module; 5-Detection module; 6-Monitoring module; 11-Photodiode; 12-Current sensor; A-Solar power supply system; B-Monitoring host. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Embodiment 1: Figure 1is a flow chart of a lightning current waveform monitoring method provided by an embodiment of the present invention; Figure 2 : is a lightning current waveform diagram provided by an embodiment of the present invention. Figure 1 to Figure 2 As shown, an embodiment of the present invention provides a lightning current waveform monitoring method, the lightning current waveform monitoring method comprising: S1, responding to and collecting lightning current based on the photoelectric information of lightning to obtain the waveform data of lightning current, the photoelectric information includes the luminous signal and current intensity of lightning.

[0029] Specifically, in this step, the following steps are specifically included: S11, the instantaneous luminous signal generated by lightning is detected by the photodiode 11 to wake up the current sensor 12 in the dormant state to collect the lightning current. In the embodiment of the present invention, the response collection of the lightning current mainly adopts a triggering method that cooperates with the photosensitive trigger and the current threshold trigger. Under normal weather conditions, the current sensor 12 under the control of the monitoring device remains in a low-power dormant state. Once a lightning strike occurs near the monitoring point, the photodiode 11 immediately detects the instantaneous luminous signal generated by the lightning. The photodiode 11, which is a photosensitive sensing mechanism, is activated almost instantly. It converts the luminous signal into an electrical signal. This signal is quickly recognized by the control system of the monitoring device to control the current sensor 12 to switch from the dormant state to the active collection and monitoring state. At this time, the entire monitoring device is already in a high alert state, ready to use the current sensor 12 to capture the current waveform signal of the upcoming lightning.

[0030] S12, using a current sensor to detect the current intensity of the lightning current, when the current intensity is greater than the current trigger threshold, the current sensor is used to collect the lightning current. Further, in an embodiment of the present invention, in order to improve the accuracy of data acquisition, the system is also combined with a current trigger threshold. This means that in addition to relying on the rapid response of the photosensitive sensor mechanism, when collecting the lightning current, the current sensor 12 will also be used to monitor whether the lightning current reaches a predetermined threshold. Only when the current intensity exceeds the preset current trigger threshold, the host computer and other control devices of the monitoring device will confirm that this is a valid lightning event and fully start the data collection process. This dual trigger mechanism combined with the rapid response of the photosensitive trigger and the accurate determination of the current trigger threshold can significantly improve the reliability and accuracy of lightning monitoring, ensuring that all important lightning events can be accurately recorded without missing any key data, while also reducing the acquisition of invalid data and reducing resource waste.

[0031] For the acquisition of lightning current waveform data, the triggering method of coordinated photosensitive triggering and current threshold triggering combines the advantages of optical signals and electrical signals, while ensuring that the device can respond quickly to lightning strike events, it improves the response speed and accuracy of the overall monitoring.

[0032] Further, the current sensor 12 includes a plurality of range channels, and the current amplitudes corresponding to the plurality of range channels are different in size and increase in sequence. The current sensor collects lightning currents with different current intensities through the plurality of range channels. For example, in the embodiment of the present invention, since the frequency range of lightning current ranges from close to direct current to tens of MHz and the current amplitude ranges from several amperes to hundreds of kiloamperes, the current sensor 12 used for detection and collection adopts a broadband, high-sensitivity, and large-range current sensor to sense the lightning current waveform signal. By setting a plurality of range channels with different ranges, after obtaining the current amplitude of the lightning current, the monitoring system will compare the actual current amplitude with the amplitude range corresponding to each range channel, starting from the range channel with the smallest range. If the actual current amplitude exceeds its maximum range, it will switch to the next range channel, and if the actual current amplitude is not greater than the maximum range of the corresponding range channel, the range channel will be selected as the collection channel. The purpose of selecting this multi-channel large and small range collection method is to effectively capture a wide range of lightning current waveforms, thereby ensuring accurate response to current signals from weak to extremely strong. This method uses multiple channels with different ranges to work in parallel, and switches channels with different ranges in a fully automatic manner to achieve accurate acquisition of currents with different amplitudes. The switching process is controlled by a field programmable logic gate array or an algorithm inside a microcontroller, which dynamically adjusts the selection of acquisition channels based on the strength of the input signal and real-time performance requirements.

[0033] Exemplarily, in an embodiment of the present invention, in addition to adopting a multi-channel large and small range acquisition method, historical data and environmental noise levels can also be used to optimize the logic of switching range channels to improve the predictability and response speed of switching. The historical data refers to the data that has been collected at the installation location since the equipment was put into operation. These data can be used to calculate the average noise level of the installation location of the current sensor 12, as well as the noise level when lightning currents of different current amplitudes were collected in the past. By matching with the corresponding range channel, when the lightning current is subsequently collected in real time, this noise level can be used as a reference for optimizing the setting of the trigger threshold. Combined with the multi-channel large and small range acquisition method, it can not only handle a huge dynamic range, but also optimize the accuracy and resolution of the data, thereby meeting the monitoring requirements for the full spectrum of lightning currents.

[0034] S2, obtaining the waveform data of the lightning current based on the luminous signal and the current intensity.

[0035] S3, timing the waveform data of the lightning current to align the second pulses of the waveform data.

[0036] Specifically, in this step, the waveform data of the lightning current is aligned with the second pulse based on the Beidou and GPS dual-mode clock system. Exemplarily, in an embodiment of the present invention, the timing accuracy is crucial for monitoring the lightning current waveform. This method uses the second pulse signal of the Beidou and GPS dual-mode systems for time alignment, supplemented by high-stability crystal oscillator counting to achieve more accurate time marking. The purpose of the second pulse alignment in the monitoring system is to synchronize the second-level time of the monitoring device with the satellite time. This alignment ensures the consistency of the timestamp of the monitoring data with the international standard time. At the same time, the high-stability crystal oscillator is used for counting, providing accurate time measurement at the decimal second level. When each second pulse signal arrives, the counter is cleared, and then the crystal oscillator starts a new second count until the next second pulse signal arrives. This mechanism enables the time between second-level pulses to be accurately measured and recorded. High-precision synchronization of the lightning current waveform and the lightning strike time at each position on the waveform is achieved, and the timing accuracy can reach 20 nanoseconds, ensuring accurate data support for the precise location of the lightning strike and subsequent research.

[0037] S4, extracting waveform parameters of the lightning current, the waveform parameters including peak value, polarity, rising edge time, wave head steepness, charge amount and specific energy. For example, in the embodiment of the present invention, for the waveform parameters of the lightning current, a multi-parameter waveform parameter extraction method is used, which not only records the waveform curve data of the lightning current, but also extracts key waveform features, such as peak value, polarity, rising edge time, wave head steepness, charge amount and specific energy. The following describes the extraction and calculation methods of each parameter.

[0038] Peak value: Use ADC (Analog to Digital Converter) to collect the analog signal of the lightning current waveform and convert it into digital data. The peak value is the maximum value among these digital data. Figure 2 Point a in the graph represents the highest current intensity of the waveform. This value directly reflects the intensity of the lightning strike.

[0039]

[0040] Polarity: Lightning waveforms can be positive or negative, depending on the direction of the current. The monitoring system records the direction of the current when collecting data, and determines the positive and negative changes of the waveform based on the ADC data to determine the polarity of the waveform.

[0041] Rise time: Rise time is the time it takes for a waveform to reach its peak from the beginning of its rise. This can be measured by recording the time stamps during the rise of the waveform, usually by analyzing the timestamps of each data point of the waveform and finding the time difference from the baseline to the peak, where the baseline is referenced Figure 2 Section b in .

[0042]

[0043] Wave steepness: Wave steepness refers to the slope of the rising edge of the waveform, usually expressed as the rate of change of current (amperes per microsecond). This is obtained by calculating the ratio of the current increment of the rising edge to the corresponding time increment.

[0044]

[0045] Charge: The charge Q is the amount of electricity transferred by the waveform during the entire cycle. It can be calculated by integrating the area of ​​the waveform, that is, multiplying the current value of each sampling point by the corresponding time interval and accumulating them.

[0046]

[0047] Specific energy: Specific energy refers to the energy transferred per unit charge. The calculation method is to integrate the square of the current to obtain the energy value per unit charge.

[0048]

[0049] The multi-parameter waveform parameter extraction method used in the embodiment of the present invention can automatically calculate important parameters such as waveform peak value, polarity, rising edge time, wave head steepness, charge amount and specific energy, etc. This provides important and comprehensive data support for in-depth research and understanding of lightning phenomena.

[0050] S5, storing and remotely transmitting waveform data and waveform parameters.

[0051] Specifically, in the embodiment of the present invention, the data acquired in the above steps can be sent to the monitoring software system via a wired or wireless network using the monitoring host, thereby realizing remote transmission and analysis of lightning strike data. This not only improves the efficiency of data processing, but also facilitates users to monitor and analyze lightning strike events at different locations.

[0052] The lightning current waveform monitoring method provided by the embodiment of the present invention can sense and accurately record lightning current waveform signals in different frequency ranges from near direct current to tens of MHz by using a wide-band, high-sensitivity and large-range current sensor, covering the amplitude range from several amperes to hundreds of kiloamperes, thereby effectively improving the accuracy and application scope of lightning current monitoring.

[0053] Furthermore, through the coordinated triggering method of light-sensitive triggering and current threshold triggering, the corresponding current sensor 12 and other acquisition devices can be quickly awakened from the sleep state to the acquisition monitoring state at the moment of lightning strike. This mechanism ensures the capture of lightning strike events under extreme or different conditions, thereby achieving monitoring without signal omission. At the same time, it also reduces the hardware power consumption of the corresponding acquisition equipment and reduces the overall energy consumption.

[0054] Furthermore, by utilizing a high-precision timing method based on Beidou and GPS dual-mode second pulse alignment and high-stable crystal oscillator counting, high-precision synchronization of lightning strike time can be achieved, with a timing accuracy of up to 20 nanoseconds, thereby achieving high-precision time synchronization of lightning current waveforms.

[0055] Furthermore, the multi-parameter waveform parameter extraction method adopted in the embodiment of the invention can automatically calculate important parameters such as waveform peak, polarity, rising edge time, wave head steepness, charge amount and specific energy, thereby solving the technical problem of poor comprehensiveness of lightning current detection in the prior art.

[0056] Finally, the acquired data can be sent to the monitoring software system via wired or wireless networks, realizing remote transmission and analysis of lightning strike data. This not only improves the efficiency of data processing, but also facilitates users to monitor and analyze lightning strike events at different locations.

[0057] Embodiment 2: Figure 3 is a system architecture diagram of a monitoring module provided by an embodiment of the present invention; Figure 4 : is a structural block diagram of a monitoring device provided by an embodiment of the present invention. Figure 3 to Figure 4 As shown, an embodiment of the present invention further provides a monitoring device, which has the function of implementing the above-mentioned lightning current waveform monitoring method. It includes a signal acquisition module 1, a waveform acquisition module 2, a timing module 3, a waveform parameter extraction module 4 and a data storage and detection module 5. Among them, the signal acquisition module 1 is used to respond to and collect the lightning current based on the photoelectric information of the lightning, and the photoelectric information includes the luminous signal and current intensity of the lightning. The waveform acquisition module is used to draw the waveform data of the lightning current based on the luminous signal and the current intensity. The timing module 3 is used to perform high-precision timing on the waveform data of the lightning current. The waveform parameter extraction module 4 is used to extract the waveform parameters of the lightning current, and the waveform parameters include peak value, polarity, rising edge time, wave head steepness, charge and specific energy. The data storage and detection module 5 is used to store and remotely transmit the waveform data and waveform parameters.

[0058] Optionally, the signal acquisition module 1 includes a photodiode 11 and a current sensor 12, the current sensor 12 is configured to be in a dormant state under normal circumstances, and the photodiode 11 is configured to convert the luminous signal into an electrical signal indicating the awakening current sensor 12 to be converted into a collection monitoring state after detecting the instantaneous luminous signal of lightning. Exemplarily, for the acquisition of waveform data of lightning current, the triggering method of the coordinated photosensitive triggering and current threshold triggering combines the advantages of optical signals and electrical signals, while ensuring that the device can respond quickly to lightning events, and improving the response speed and accuracy of the overall monitoring.

[0059] Optionally, the current sensor 12 is configured to collect the lightning current when the current intensity of the detected lightning current is greater than the current trigger threshold to obtain the waveform data of the lightning current. For example, in addition to relying on the rapid response of the photosensitive sensing mechanism, the current sensor 12 is also used to monitor whether the lightning current reaches a predetermined threshold when collecting the lightning current. Only when the current intensity exceeds the preset current trigger threshold will the host computer and other control devices of the monitoring device confirm that this is a valid lightning event and fully start the data collection process. This dual trigger mechanism combined with the rapid response of the photosensitive trigger and the accurate determination of the current trigger threshold can significantly improve the reliability and accuracy of lightning monitoring, ensuring that all important lightning events can be accurately recorded without missing any key data, while also reducing the acquisition of invalid data and reducing resource waste.

[0060] Optionally, the waveform parameter extraction module 4 is configured to automatically enter a dormant state when the current sensor 12 is in a dormant state; when the current sensor 12 is awakened and switched to a collection monitoring state, it is synchronously awakened to extract the waveform parameters of the lightning current. Exemplarily, in an embodiment of the present invention, following the dormancy and awakening of the current sensor 12, the waveform parameter extraction module 4 for extracting the waveform data of the lightning current also synchronously switches between the dormancy and collection monitoring states, and by entering a dormant mode when there is no lightning activity and quickly awakening when a lightning event is triggered, the overall energy consumption of the monitoring device is effectively reduced.

[0061] Optionally, a monitoring module 6 is further included, which is used to online monitor the operation status and working status information of the signal acquisition module 1, the waveform acquisition module 2, the timing module 3, the waveform parameter extraction module 4 and the data storage and detection module 5, and provide graphic feedback to the staff. Exemplarily, in the embodiment of the present invention, the system architecture of the monitoring module 6 is as follows: Figure 3As shown, the solar power supply system A, the current sensor 12 and the monitoring host B are integrated, and are mainly used for online monitoring of lightning current waveforms. The present invention relates to the monitoring host B integrating various interfaces on the same circuit board, and adopting the ARM+FPGA framework, the ARM mainly realizes human-computer interaction, the FPGA realizes data acquisition, calculation and filtering processing, and exchanges data with the ARM, stores effective data in the TF card and sends it to a dedicated server through a wireless network. The monitoring device of the present invention is also provided with a GUI for displaying measurement data. The present invention relates to the monitoring host B integrating various interfaces on the same circuit board, with a waveform measurement function; the current sensor 12 is a high-frequency flexible current sensor, the working frequency band is at least 1MHz, and the measurement range is -200KA~200KA; photosensitive trigger type acquisition; pre-storage can be performed, and waveform parameters can be stored for a long time; high-precision GPS timing, the accuracy is within 50ns; real-time acquisition of parameters such as lightning strike time, lightning current peak, polarity, charge, specific energy, wave head steepness, etc.; large-capacity storage, at least 1000 waveform records can be saved. The waveform parameters can be saved locally and on the cloud server; low power consumption design, powered by a solar energy system, the device can work continuously for 1 week without charging the solar panel; high reliability, built-in hardware watchdog, rapid restart after a crash; overall modular layout, small size, light weight, sealed, shock-resistant, salt spray-proof, and high temperature-resistant.

[0062] Embodiment 3: Figure 3 Schematic diagram of a control structure of an electronic device provided by an embodiment of the present invention. Figure 3 As shown, the electronic device includes a processor and a memory for storing instructions executable by the processor. The electronic device 7100 may be a computer device, and the electronic device 7100 may include one or more of the following components: a processor 7101 , a memory 7102 , a communication interface 7103 , and a bus 7104 .

[0063] The processor 7101 includes one or more processing cores, and the processor 7101 executes various functional applications and information processing by running software programs and modules. The memory 7102 and the communication interface 7103 are connected to the processor 7101 through the bus 7104. The memory 7102 can be used to store at least one instruction, and the processor 7101 is used to execute the at least one instruction to implement each step in the above method embodiment.

[0064] In addition, the memory 7102 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or an optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, and a programmable read-only memory (PROM).

[0065] Embodiment 4: Exemplarily, in an embodiment of the present invention, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory including instructions, and the instructions can be executed by a processor to perform the aforementioned lightning current waveform monitoring method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0066] It should be understood by those skilled in the art that embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented 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.

[0067] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (apparatus), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0068] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0069] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit its protection scope. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the invention.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit its protection scope. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the invention.

Claims

1. A lightning current waveform monitoring method, characterized in that: include: Responding to and collecting lightning current based on the photoelectric information of lightning, wherein the photoelectric information includes the luminous signal and current intensity of lightning; Based on the luminous signal and the current intensity, waveform data of the lightning current is obtained by plotting; Performing timing on the waveform data of the lightning current to align the second pulses of the waveform data; Waveform parameters of the lightning current are extracted, and the waveform parameters include peak value, polarity, rising edge time, wave head steepness, charge amount and specific energy.

2. The lightning current waveform monitoring method according to claim 1, characterized in that: The method of responding to and collecting lightning current based on lightning photoelectric information includes: The photodiode (11) is used to detect the instantaneous luminous signal generated by the lightning, so as to wake up the current sensor (12) in a dormant state to collect the lightning current.

3. The lightning current waveform monitoring method according to claim 2, characterized in that: The method of responding to and collecting lightning current based on the photoelectric information of lightning also includes: The current sensor (12) is used to detect the current intensity of the lightning current, and when the current intensity is greater than the current trigger threshold, the lightning current is collected by using the current sensor (12).

4. The lightning current waveform monitoring method according to claim 3 is characterized in that: The current sensor (12) comprises a plurality of measuring range channels, the current amplitudes corresponding to the plurality of measuring range channels are different in magnitude and increase in sequence, and the current sensor (12) collects lightning currents with different current intensities through the plurality of measuring range channels.

5. The lightning current waveform monitoring method according to claim 1, characterized in that: The timing of the waveform data of the lightning current includes: The waveform data of the lightning current is aligned with second pulses based on the Beidou and GPS dual-mode clock system.

6. The lightning current waveform monitoring method according to claim 1, characterized in that: The lightning current waveform monitoring method further includes storing and remotely transmitting the waveform data and the waveform parameters. The waveform data and the waveform parameters are stored and remotely transmitted.

7. A monitoring device, characterized in that: The monitoring device comprises: A signal acquisition module (1) is used to respond to and acquire the lightning current based on the photoelectric information of the lightning, so as to obtain the waveform data of the lightning current, wherein the photoelectric information includes the luminous signal and current intensity of the lightning; A waveform acquisition module (2), used for obtaining waveform data of a lightning current by drawing based on the luminous signal and the current intensity; A timing module (3) is used to perform timing on the waveform data of the lightning current so as to perform pulse-per-second alignment on the waveform data; A waveform parameter extraction module (4) is used to extract waveform parameters of the lightning current, the waveform parameters including peak value, polarity, rising edge time, wave head steepness, charge amount and specific energy.

8. The monitoring device according to claim 7, characterized in that: The signal acquisition module (1) comprises a photodiode (11) and a current sensor (12); the current sensor (12) is configured to be in a dormant state under normal circumstances; and the photodiode (11) is configured to, after detecting an instantaneous light emitting signal of lightning, convert the light emitting signal into an electrical signal indicating waking up the current sensor (12) to switch to a acquisition monitoring state.

9. The monitoring device according to claim 8, characterized in that: The current sensor (12) is configured to collect the lightning current when the current intensity of the detected lightning current is greater than a current trigger threshold, so as to obtain waveform data of the lightning current.

10. The monitoring device according to claim 8, characterized in that: The waveform parameter extraction module (4) is configured to automatically enter a dormant state when the current sensor (12) is in a dormant state; and to synchronously wake up to extract the waveform parameters of the lightning current when the current sensor (12) is awakened and converted to a collection monitoring state.

11. The monitoring device according to claim 7, characterized in that: It also includes a data storage and detection module (5) for storing and remotely transmitting the waveform data and the waveform parameters.

12. The monitoring device according to claim 7, characterized in that: It also includes a monitoring module (6) for online monitoring the operating status and working status information of the signal acquisition module (1), the waveform acquisition module (2), the timing module (3), the waveform parameter extraction module (4) and the data storage and detection module (5), and providing graphic and text feedback to the staff.

13. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by a processor; Wherein, the processor is configured to execute the lightning current waveform monitoring method described in any one of claims 1 to 6.

14. A storage medium having computer instructions stored thereon, characterized in that: When the computer instructions are executed by the processor, the lightning current waveform monitoring method according to any one of claims 1 to 6 is implemented.

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