Lightning locator measuring device

Abstract

The disclosed embodiment provides a lightning locator measuring device, including: a main control module storing a lightning waveform feature library; a measurement control module for transmitting the standard lightning waveform signal stored in the lightning waveform feature library to a lightning waveform simulation generator; a GNSS time synchronization module for generating a reference lightning pulse synchronization signal; the lightning waveform simulation generator is used to configure parameters according to the standard lightning waveform signal, and generate lightning pulses in synchronization with the reference lightning pulse synchronization signal, and then selectively transmit the lightning pulses to a transmitting antenna or a numerically controlled attenuation module; the transmitting antenna or the numerically controlled attenuation module is used to transmit the lightning pulses to the lightning locator. This technical solution can cover most or even all indicators in the product acceptance specification, and can realize automatic testing.

Description

Technical Field

[0001] The present disclosure relates to the technical field of lightning equipment, and in particular to a lightning locator measuring device. Background Art

[0002] A lightning locator is a meteorological detection instrument that monitors the occurrence of lightning. It is an automated detection device that uses the sound, light, and electromagnetic field characteristics of lightning radiation to remotely measure lightning discharge parameters. It sends the pre-processed lightning data to the central data processing station through a communication system in real time for real-time intersection processing. It can operate continuously around the clock, for a long time, and record indicators such as the time, location, intensity, and polarity of lightning.

[0003] At present, lightning locators are usually measured with general instruments such as oscilloscopes. Since there is no benchmark for the pulse delay time measurement of lightning locators, the measurement error is large. In addition, system indicators such as data format, lightning processing time, and false alarm rate are difficult to test with general instruments. Usually, a combination of multiple general instruments is required, making it difficult to achieve automatic testing. Due to the lack of special metering equipment, the quality of factory acceptance test data of lightning locators is difficult to guarantee. There are also many problems such as few quality monitoring measures for online operation status data, hidden dangers in operation data quality, and insufficient guarantee measures. Summary of the invention

[0004] In order to solve the problems in the related art, an embodiment of the present disclosure provides a lightning locator measuring device.

[0005] A lightning locator measuring device is provided in an embodiment of the present disclosure.

[0006] Specifically, the lightning locator measuring device comprises:

[0007] A main control module stores a lightning waveform feature library;

[0008] A measurement control module, used for transmitting the standard lightning waveform signal stored in the lightning waveform feature library to the lightning waveform simulation generator;

[0009] GNSS time synchronization module, used to generate reference lightning pulse synchronization signal;

[0010] The lightning waveform simulation generator is used to configure parameters according to the standard lightning waveform signal, and generate lightning pulses in synchronization with the reference lightning pulse synchronization signal, and then selectively transmit the lightning pulses to a transmitting antenna or a digitally controlled attenuation module;

[0011] The transmitting antenna or the digitally controlled attenuation module is used to transmit the lightning pulse to the lightning locator;

[0012] The main control module is used to receive the measurement result of the lightning locator on the lightning pulse, and obtain the parameters of the lightning locator according to the measurement result.

[0013] Optionally, the lightning waveform simulation generator is also used to transmit the lightning pulse to the detection calibration module;

[0014] The detection calibration module is electrically connected to the switch matrix, and when the switch matrix is ​​switched to a self-test calibration channel, the lightning pulse is calibrated through the waveform measurement module; or when the switch matrix is ​​switched to an external calibration channel via the measurement control module, the lightning pulse is calibrated through the waveform measurement module;

[0015] The measurement control module is used to transmit the calibrated lightning pulse to the lightning waveform simulation generator, and selectively transmit the calibrated lightning pulse to the transmitting antenna or the digital control attenuation module via the lightning waveform simulation generator.

[0016] Optionally, the device is configured with a CH interface, a signal source output interface and a standard interface;

[0017] Among them, the CH interface is used as a measurement interface for an external calibration channel; the signal source output interface is used to inject the lightning pulse into the lightning locator through a cable; and the standard interface is used to receive the measurement result of the lightning pulse.

[0018] Optionally, the device is further configured with a synchronization interface, a GNSS interface, an Internet port or a USB interface;

[0019] Among them, the synchronization interface is used for external signal waveform measurement; the GNSS interface is used to connect the GNSS antenna, and the GNSS antenna is electrically connected to the GNSS time synchronization module; the network port is used to connect to the network to achieve remote control; and the USB interface is used to export files.

[0020] Optionally, it also includes: a battery and a power module for supplying power to the device.

[0021] Optionally, it further includes: a display driving module and a touch screen; the display driving module is electrically connected to the main control module and the touch screen respectively.

[0022] Optionally, the parameters configured according to the standard lightning waveform signal include one or more of the following: pulse delay time, number of pulses, and pulse interval time of a single lightning event; and the number of pulse combinations, duration of each pulse, and interval time of each pulse of multiple lightning events; and lightning pulse amplitude and lightning pulse polarity.

[0023] Optionally, the parameters of the lightning locator include: functional parameters and performance parameters;

[0024] The function parameter inspection items include one or more of the following:

[0025] Data format check, operation status check, storage capacity check, data transmission check, terminal operation check, software update check, GNSS time synchronization module check, self-test function check, lightning polarity identification check, full waveform lightning data check;

[0026] The performance parameter inspection items include one or more of the following:

[0027] Time accuracy check, hitback event processing time check, power consumption check, power supply check.

[0028] Optionally, it also includes:

[0029] Electromagnetic shielding test chamber, used to shield external electromagnetic interference signals.

[0030] Optionally, the electromagnetic shielding test chamber includes: a hollow sleeve and a bracket; the bracket has a supporting surface, and the supporting surface is located in the hollow sleeve and is used to place the lightning locator.

[0031] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0032] The embodiment of the present disclosure provides a lightning locator measuring device, comprising: a main control module, storing a lightning waveform feature library; a measurement control module, used to transmit a standard lightning waveform signal stored in the lightning waveform feature library to a lightning waveform simulation generator; a GNSS time synchronization module, used to generate a reference lightning pulse synchronization signal; the lightning waveform simulation generator is used to configure parameters according to the standard lightning waveform signal, and generate a lightning pulse in synchronization with the reference lightning pulse synchronization signal, and then selectively transmit the lightning pulse to a transmitting antenna or a numerically controlled attenuation module; the transmitting antenna or the numerically controlled attenuation module is used to transmit the lightning pulse to the lightning locator; the main control module is used to receive the measurement result of the lightning locator on the lightning pulse, and obtain the parameters of the lightning locator according to the measurement result. This technical solution uses GNSS time synchronization to form an editable pulse signal source for lightning locator measurement, such as pulse delay time, pulse number, pulse time interval, and lightning pulse polarity. It has the same physical characteristics as real lightning pulses, and realizes spatial non-contact testing through a transmitting antenna or injection testing through a cable-connected CNC attenuation module. Using one of the above two methods to measure the lightning locator can cover most or even all indicators in the product acceptance specification, and can realize automatic testing. The pulse signal source provided by the lightning locator measurement device disclosed in the present invention has a simulated lightning pulse accuracy of less than 10ns, a simulated lightning pulse number of more than 3, a simulated lightning pulse width setting range of more than 300μs, an amplitude setting range of more than 30dB, and a pulse measurement accuracy of more than ten times the lightning locator pulse measurement accuracy.

[0033] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Other features, objectives and advantages of the present disclosure will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0035] Figure 1 A principle block diagram of a lightning locator measuring device according to an embodiment of the present disclosure is shown;

[0036] Figure 2 A front view of a lightning locator measuring device according to an embodiment of the present disclosure is shown;

[0037] Figure 3 A rear view showing a lightning locator measuring device according to an embodiment of the present disclosure;

[0038] Figure 4 A schematic structural diagram of an electromagnetic shielding test chamber according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0039] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0040] In the present disclosure, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof exist or are added.

[0041] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] The present disclosure is made to at least partially solve the problems in the prior art discovered by the inventors.

[0043] like Figure 1 As shown, the lightning locator measuring device includes: a main control module 1, a measurement control module 2, a lightning waveform simulation generator 3, a GNSS time synchronization module 4, a transmitting antenna 5, a digital control attenuation module 6, a detection and calibration module 7, a switch matrix 8 and a waveform measurement module 9.

[0044] Among them, the main control module 1 stores a lightning waveform feature library;

[0045] The measurement control module 2 is used to transmit the standard lightning waveform signal stored in the lightning waveform feature library to the lightning waveform simulation generator 3;

[0046] The GNSS time synchronization module 4 is used to generate a reference lightning pulse synchronization signal;

[0047] The lightning waveform simulation generator 3 is used to configure parameters according to the standard lightning waveform signal, and generate lightning pulses in synchronization with the reference lightning pulse synchronization signal, and then selectively transmit the lightning pulses to the transmitting antenna 5 or the digital control attenuation module 6;

[0048] The transmitting antenna 5 or the digitally controlled attenuation module 6 is used to transmit the lightning pulse to the lightning locator;

[0049] The main control module 1 is used to receive the measurement result of the lightning locator on the lightning pulse, and obtain the parameters of the lightning locator according to the measurement result.

[0050] The lightning locator measuring device provided by the embodiment of the present disclosure is used in conjunction with a lightning locator in actual application to form a test system. In order to realize the networking and automation requirements of the test system, the interaction between the two is based on the network protocol. At the same time, the test system adopts a separate client and server design, which can realize flexible deployment and remote control and permission approval requirements. In general, the implementation of the test system consists of three parts: the client, the server and the lightning locator software service; the client provides a terminal for command input and result output to the user in the form of UI interaction; the server provides a hub for command reception and transmission, test module control, data processing, and data storage; the lightning locator software service provides the test system with middleware for command reception and transmission and return of data results. The connection between the client and the server supports three modes: public network, local area network and local connection.

[0051] According to the embodiment of the present disclosure, the main control module 1 is used to control other modules to work in coordination to realize automatic testing of the functions and performance parameters of the lightning locator. The main control module 1 has a built-in lightning waveform feature library, which can realize various types of cloud-flash and ground-flash signals, and control the lightning waveform simulation generator 3 to generate lightning pulse signals in an instruction manner.

[0052] According to an embodiment of the present disclosure, the measurement control module 2 is used to receive control instructions from the main control module 1, generate control signals, and control other modules to work in coordination according to the instructions and control parameter requirements.

[0053] According to the embodiments of the present disclosure, the lightning waveform simulation generator 3 can generate various types of cloud-flash and ground-flash signals, and under the synchronization of the 1PPS second pulse of the GNSS time synchronization module, generate a lightning event echo signal composed of one or more delayed pulses, and can automatically form setting parameters according to the standard lightning waveform signal stored in the lightning waveform feature library, control the internal circuit of the FPGA to operate according to the setting parameters, and output lightning pulses.

[0054] In the disclosed method, the parameters configured according to the standard lightning waveform signal include one or more of the following: pulse delay time, number of pulses, and pulse interval time of a single lightning event; and the number of pulse combinations, duration of each pulse, and interval time of each pulse of multiple lightning events; and lightning pulse amplitude and lightning pulse polarity.

[0055] Specifically, the multiple lightning events can be a combination of continuous lightning events for 24 hours, which is used to measure the lightning pulse detection performance, lightning event processing capability, and false alarm rate and detection probability of the lightning locator in long-term continuous operation of 24 hours, 48 ​​hours or 72 hours.

[0056] According to an embodiment of the present disclosure, the GNSS time synchronization module 4 is used to generate a reference lightning pulse synchronization signal so that the lightning pulse has the same time reference as the lightning locator.

[0057] According to the embodiment of the present disclosure, the lightning pulse generated by the lightning waveform simulation generator 3 can be transmitted to the lightning locator in two ways, one of which is a spatial non-contact test method, and the other is an injection test method.

[0058] Specifically, the space non-contact test radiates lightning pulse signals by the built-in transmitting antenna in the measuring device to form a space electromagnetic pulse. The lightning locator receives and measures the signal, and then sends the measurement results to the lightning locator measuring device through a standard interface. The measuring device performs statistical analysis on the measurement results.

[0059] The injection test connects the lightning locator's receiving input terminal through an RF cable. The CNC attenuation module controls the amplitude of the directly output MV-level lightning pulse signal, and then injects the lightning pulse signal into the lightning locator through the signal source output interface. The lightning locator receives and measures the signal, and sends the measurement results to the lightning locator measuring device through a dedicated communication cable. The measuring device then performs statistical analysis on the measurement results.

[0060] The lightning locator measuring device provided in the embodiment of the present disclosure adopts GNSS time synchronization to form an editable pulse signal source for lightning locator measurement, such as pulse delay time, pulse number, pulse time interval, lightning pulse polarity, etc., and has the same physical characteristics as real lightning pulses. It realizes spatial non-contact testing through a transmitting antenna or realizes injection testing through a cable-connected CNC attenuation module. Using one of the above two methods to measure the lightning locator can cover most or even all indicators in the product acceptance specifications and can realize automatic testing.

[0061] According to an embodiment of the present disclosure, the lightning waveform simulation generator 3 is also used to transmit the lightning pulse to the detection calibration module 7;

[0062] The detection and calibration module 7 is electrically connected to the switch matrix 8, and when the switch matrix 8 is switched to the self-test calibration channel, the lightning pulse is calibrated through the waveform measurement module 9; or when the switch matrix 8 is switched to the external calibration channel via the measurement control module 2, the lightning pulse is calibrated through the waveform measurement module 9;

[0063] The measurement control module 2 is used to transmit the calibrated lightning pulse to the lightning waveform simulation generator 3 , and selectively transmit the calibrated lightning pulse to the transmitting antenna 5 or the digital control attenuation module 6 via the lightning waveform simulation generator 3 .

[0064] In the disclosed method, in order to ensure that the lightning pulse received by the lightning locator is consistent with the standard lightning waveform signal, the lightning pulse needs to be calibrated. The calibration method can be self-test calibration or external calibration. After the waveform measurement module 9 measures the calibration parameters, it feeds back to the measurement control module 2, and then sends instructions to the lightning waveform simulation generator 3 to control the lightning waveform simulation generator 3 to calibrate the lightning pulse. After calibration, the lightning pulse is transmitted to the transmitting antenna 5 or the CNC attenuation module 6, and then received by the lightning locator for measurement. The above method can provide a more accurate pulse signal source for the lightning locator and also improve the accuracy of the measurement results.

[0065] According to an embodiment of the present disclosure, the device further includes: a display driving module 10 and a touch screen 11; the display driving module 10 is electrically connected to the main control module 1 and the touch screen 11 respectively.

[0066] See also Figure 2 The front panel layout of the lightning locator measuring device is divided into two major partitions, the display area and the key area, which are matched with the main and auxiliary areas. The display area accounts for about 60% of the total area of ​​the front panel, and the main and auxiliary design is matched with the emphasis on display. The key area is on the right side, and the power switch button is set, which conforms to the natural hand-raising operation, binocular direct vision, and natural hand-eye coordination operation and observation habits. The display screen uses an 8-inch touch screen, and the parameter setting and test control during manual testing are controlled by touch screen buttons.

[0067] According to an embodiment of the present disclosure, the device further comprises: a battery and power module 12 and an AC-DC module for powering the device. Specifically, an AC-DC dual-use mode can be adopted, with a built-in lithium-ion battery and a charging port, which is convenient for carrying and testing.

[0068] like Figure 3 As shown, the device is equipped with CH interfaces CH1 (13), CH2 (14), a signal source output interface 15 and a standard interface 16; wherein, the CH1 and CH2 are used as measurement interfaces of external calibration channels, and can also be used as universal oscilloscope interfaces, or used as external signal waveform measurement interfaces, such as when testing the voltage and current (with current transformer) of a lightning locator: the signal source output interface 15 is used to inject the lightning pulse into the lightning locator through a cable; the standard interface 16 is used to receive the measurement results of the lightning pulse.

[0069] According to an embodiment of the present disclosure, the device is also configured with a synchronization interface 17, a GNSS interface 18, a network port 19 or a USB interface 20; wherein the synchronization interface 17 is used for external signal waveform measurement, for example, when testing the power supply ripple of a lightning locator; the GNSS interface 18 is used to connect a GNSS antenna. When the lightning locator is tested indoors, the GNSS antenna is connected by a cable and placed outdoors in a position where it can see the satellite signal. The more satellite signals received, the better; the GNSS antenna is electrically connected to the GNSS time synchronization module; the network port 19 is used to connect to the network to achieve remote control; the USB interface 20 is used to export files.

[0070] According to an embodiment of the present disclosure, the parameters of the lightning locator include: functional parameters and performance parameters;

[0071] The function parameter inspection items include one or more of the following:

[0072] Data format check, operation status check, storage capacity check, data transmission check, terminal operation check, software update check, GNSS time synchronization module check, self-test function check, lightning polarity identification check, full waveform lightning data check;

[0073] The performance parameter inspection items include one or more of the following:

[0074] Time accuracy check, hitback event processing time check, power consumption check, power supply check.

[0075] Specifically, data format check: check whether the parameters and data of the detection data output by the lightning locator conform to the standard format, connect the lightning locator through a cable, send lightning pulses, receive lightning locator data, and check the data format.

[0076] Operation status check: Check whether the lightning locator can output operation status data once a minute, and whether the status data conforms to the standard format. The status data reporting rate is above 98%. Connect the lightning locator through a cable, send lightning pulses, receive lightning locator data, and check the data.

[0077] Storage capacity check: Check whether the lightning locator can store at least 7 days of detection data. Connect the lightning locator via a cable, send lightning pulses, receive lightning locator data, and check the data storage capacity. The actual total amount of data storage should not be less than 2GB.

[0078] Data transmission check: Check whether the communication interface and communication parameters of the lightning locator meet the requirements of the "VLF / LF Lightning Locator Functional Specification Requirements". Connect the lightning locator through a cable, send lightning pulses, receive lightning locator data, and set the baud rate to 9600, 19200, 38400, 57600, 115200bps, 8 data bits, 1 stop bit, and no parity bit on the instrument display terminal through the SETCOM command. Check the status data to determine whether the data transmission is normal.

[0079] Terminal operation check: Check whether the terminal operation commands of the lightning locator meet the requirements of the "VLF / LF Lightning Locator Functional Specifications Requirements". Connect the lightning locator through a cable, send lightning pulses, receive lightning locator data, and input the terminal operation commands defined in the "VLF / LF Lightning Locator Functional Specifications Requirements" to the lightning locator through the instrument display terminal one by one, and check whether the lightning locator's response to the command meets the requirements.

[0080] Software update check: Without changing any hardware devices, test whether the embedded software in the detector can be upgraded through the instrument display terminal. Use the instrument display terminal to upgrade the software in the detector. If the detector software version number changes, it means that the software upgrade is successful.

[0081] GNSS time synchronization module check: Check whether the detector can send a prompt message when GNSS synchronization fails. Shield or unplug the detector GNSS antenna to make GNSS synchronization unsuccessful, and check the prompt message sent by the detector received by the instrument display terminal. The GPS information in the status data is E001, C001 and others. When synchronization fails, it displays non-E001 and C001.

[0082] Self-check function check: Check whether the detector has the self-check function and check the parameters output by the self-check. Enter the AUTOCHECK command in the instrument display terminal to check whether the parameters returned by the detector are correct.

[0083] Lightning polarity identification check: Check whether the lightning locator can correctly identify the simulated lightning signal with opposite polarity. Connect the lightning locator through the cable, send the lightning pulse, receive the lightning locator data, check the pulse data output by the detector, and judge that the function is normal if the pulse type matches the pulse polarity generated by the surge generator.

[0084] Full waveform lightning data check: Check whether the detector outputs full waveform lightning data and the time delay is less than 10 minutes. Connect the lightning locator through a cable, send lightning pulses, receive lightning locator data, check the pulse data output by the detector, check the waveform data field output by the detector, and check whether the waveform data format meets the business requirements. Check that the delay between the time field in the waveform data and the receiving time is less than 10 minutes. The waveform data format refers to the data format defined by the equipment manufacturer.

[0085] Time accuracy check: Time accuracy index should be better than 10 -7 s, connect the lightning locator through a cable, or send lightning pulses through an antenna, receive the lightning locator data, record the detector's second pulse measurement results, compare the measured value with the second pulse error, use ten measurement results, and calculate the time accuracy. The measured root mean square error is:

[0086]

[0087] Where: N is the number of measurement samples, with a minimum of 10 second pulses; Δt is the time measurement error, with the second pulse as the true value, and the measurement error after deblurring of 10 consecutive measurement timestamps and the second pulse (≤1s is a valid value).

[0088] Return stroke event processing time check: Return stroke event processing time indicator requirement: less than 1ms. Connect the lightning locator through a cable, or send lightning pulses through the transmitting antenna, receive the lightning locator data, record the output timestamp of the detector result data, compare the measured value with the second pulse error, use ten measurement results, calculate the return stroke event processing time, and take the maximum value.

[0089] Power consumption check: The power consumption index requirement of the detector is less than 20W. Connect the lightning locator through a cable, or send lightning pulses through an antenna. The lightning locator is in working state, and the instrument automatically measures the power consumption of the lightning locator.

[0090] Power supply check: The detector power supply index requirements: AC187V~AC242V; ripple requirements: Vpp less than 150mV; connect the lightning locator through a cable, and automatically measure the lightning locator power supply ripple through the instrument's internal waveform measurement module.

[0091] According to an embodiment of the present disclosure, the device further comprises: an electromagnetic shielding test chamber for shielding external electromagnetic interference signals. Preferably, a folded magnetic shielding plate is used to construct the shielding test chamber.

[0092] like Figure 4 As shown, the electromagnetic shielding test chamber includes: a hollow sleeve 21 and a bracket 22; the bracket has a supporting surface, and the supporting surface is located in the hollow sleeve 21 for placing the lightning locator A.

[0093] The lightning locator measuring device provided by the embodiment of the present disclosure is based on GNSS time synchronization technology, integrated transmitting antenna technology, foldable electromagnetic shielding chamber technology, simulation detection technology, etc., combined with a lightning waveform feature library and a built-in waveform measurement module, to form different spatial breakdown dimensions, different breakdown currents, different electromagnetic pulse arrival times, different types of lightning pulse combinations, different lightning time combinations and continuously transmit, to construct a multi-parameter, multi-type lightning locator measurement simulation environment, to realize spatial non-contact testing and injection testing, with wide coverage, high integration, high reliability, and good maintainability, and capable of completing the testing of lightning locators and other lightning equipment, with simple architecture, convenient connection, safe use, comfortable operation, and excellent performance.

[0094] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present disclosure is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other.

Claims

1. A lightning locator measuring device, characterized in that: include: A main control module stores a lightning waveform feature library; A measurement control module, used for transmitting the standard lightning waveform signal stored in the lightning waveform feature library to the lightning waveform simulation generator; GNSS time synchronization module, used to generate reference lightning pulse synchronization signal; The lightning waveform simulation generator is used to configure parameters according to the standard lightning waveform signal, and generate lightning pulses in synchronization with the reference lightning pulse synchronization signal, and then selectively transmit the lightning pulses to a transmitting antenna or a digitally controlled attenuation module; The transmitting antenna or the digitally controlled attenuation module is used to transmit the lightning pulse to the lightning locator; The main control module is used to receive the measurement result of the lightning locator on the lightning pulse, and obtain the parameters of the lightning locator according to the measurement result; The lightning waveform simulation generator is also used to transmit the lightning pulse to the detection calibration module; The detection and calibration module is electrically connected to the switch matrix, and when the switch matrix is ​​switched to the self-checking and calibration channel, the lightning pulse is calibrated through the waveform measurement module; or when the switch matrix is ​​switched to an external calibration channel via the measurement control module, the lightning pulse is calibrated via the waveform measurement module; The measurement control module is used to transmit the calibrated lightning pulse to the lightning waveform simulation generator, and selectively transmit the calibrated lightning pulse to the transmitting antenna or the digital control attenuation module via the lightning waveform simulation generator.

2. The device according to claim 1, characterized in that The device is equipped with a CH interface, a signal source output interface and a standard interface; Among them, the CH interface is used as a measurement interface for an external calibration channel; the signal source output interface is used to inject the lightning pulse into the lightning locator through a cable; and the standard interface is used to receive the measurement result of the lightning pulse.

3. The device according to claim 1 or 2, characterized in that: The device is also equipped with a synchronization interface, a GNSS interface, an Internet port or a USB interface; Among them, the synchronization interface is used for external signal waveform measurement; the GNSS interface is used to connect the GNSS antenna, and the GNSS antenna is electrically connected to the GNSS time synchronization module; the network port is used to connect to the network to achieve remote control; and the USB interface is used to export files.

4. The device according to claim 1, characterized in that Also includes: A battery and a power module are used to power the device.

5. The device according to claim 1, characterized in that Also includes: Display driving module and touch screen; the display driving module is electrically connected to the main control module and the touch screen respectively.

6. The device according to claim 1, characterized in that The parameters configured according to the standard lightning waveform signal include one or more of the following: pulse delay time, number of pulses, and pulse interval time of a single lightning event; and the number of pulse combinations, duration of each pulse, and interval between each pulse of multiple lightning events; As well as lightning pulse amplitude and lightning pulse polarity.

7. The device according to claim 1, characterized in that The parameters of the lightning locator include: functional parameters and performance parameters; The function parameter inspection items include one or more of the following: Data format check, operation status check, storage capacity check, data transmission check, terminal operation check, software update check, GNSS time synchronization module check, self-test function check, lightning polarity identification check, full waveform lightning data check; The performance parameter inspection items include one or more of the following: Time accuracy check, hitback event processing time check, power consumption check, power supply check.

8. The device according to claim 1, characterized in that Also includes: Electromagnetic shielding test chamber, used to shield external electromagnetic interference signals.

9. The device according to claim 8, characterized in that The electromagnetic shielding test chamber comprises: a hollow sleeve and a bracket; the bracket has a supporting surface, and the supporting surface is located in the hollow sleeve and is used for placing the lightning locator.

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