Wide-area lightning positioning management system with multiple propagation paths

Abstract

The invention discloses a wide-area thunder and lightning positioning management system with multiple propagation paths. The wide-area thunder and lightning positioning management system comprises a digital thunder and lightning detection station which collects related data of cloud-to-ground thunder and performs classification marking; the central processing analysis base station records the occurrence time of cloud-to-ground lightning stroke, marks the time period of single cloud-to-ground lightning stroke and generates a lightning stroke time period value; marking a cloud-to-ground lightning stroke area appearance position on a corresponding area map, and linearly connecting adjacent cloud-to-ground lightning stroke point coordinates to generate a lightning stroke area face value; combining the lightning stroke area face value and the cloud-to-ground lightning stroke time period of each quarter, and calibrating an overlapping area to obtain the frequent lightning stroke occurrence time period and position of each quarter; the propagator sets the propagation path of the calibration signal in the base station and the classification of the audience group, and stores the classification signal value in the first-level server and the second-level server. The technical problems that an existing system cannot carry out regional marking on lightning stroke line time, a lightning signal propagation path is single, and few audiences are covered are solved.

Description

Technical Field

[0001] The present application relates to the field of lightning location technology, and in particular to a wide-area lightning location management system with multiple propagation paths. Background Art

[0002] Lightning is a high-intensity electromagnetic pulse phenomenon that occurs frequently in nature. Due to its wide impact, it has received widespread attention from many departments such as meteorology, aerospace, aviation, electricity, and petroleum. Among them, the power grid is more susceptible to lightning strikes due to its wide-area distribution characteristics and geometric scale of several thousand meters. According to statistics, the number of tripping of my country's high-voltage transmission lines due to lightning strikes accounts for 40% to 70% of the total number of tripping times. Lightning has become an important factor that seriously affects the safe operation of the power grid.

[0003] With the continuous expansion of the scale of power grids and the increasing risk of lightning accidents, higher requirements have been put forward for the performance indicators such as positioning accuracy and detection efficiency of lightning positioning systems, as well as application functions such as real-time intelligent lightning warning. Lightning positioning systems generally refer to the establishment of multiple detection stations tens to hundreds of kilometers apart in a large area of ​​a region or even a country to form a lightning detection network, measure the direction, distance, altitude angle and many physical parameters of lightning waves, and process the measured data to obtain the location and time of lightning occurrence and the intensity, polarity, and number of return strokes of lightning current. Lightning positioning monitoring technology and systems play a supporting role in the safe operation of power grids. However, the existing radar positioning system cannot perform regional marking of lightning strike line time, and the lightning processing signal propagation path is single, covering a small number of audiences. Summary of the invention

[0004] The present application provides a wide-area lightning location management system with multiple propagation paths, which is used to improve the technical problems that the existing radar location system is unable to perform regional marking of lightning strike line time, has a single lightning processing signal propagation path, and covers a small audience group.

[0005] In view of this, the first aspect of the present application provides a wide-area lightning location management system with multiple propagation paths, including: a digital lightning detection station, a central processing and analysis base station, and a propagator;

[0006] The digital lightning detection station includes a signal acquisition unit, an early warning unit and a data transmission unit. The signal acquisition unit is used to collect the occurrence time, location, lightning current amplitude, polarity, number of return strokes and parameters of each return stroke of cloud-to-ground lightning strikes;

[0007] The early warning unit is used to classify and mark the occurrence time, location, lightning current amplitude, polarity, number of return strokes, and parameters of each return stroke of the ground lightning strike, so as to provide the power dispatching department with a view to realize radar early warning;

[0008] The data transmission unit is used to transmit the occurrence time, location, lightning current amplitude, polarity, number of return strokes, and parameters of each return stroke of cloud-to-ground lightning strikes to the central processing and analysis base station;

[0009] The central processing and analysis base station includes a pre-processing module and a position analysis module;

[0010] The pre-processing module is used to record the occurrence time of cloud-to-ground lightning strikes, and linearly mark the time period of a single cloud-to-ground lightning strike to generate a lightning strike time period value; mark the location of the cloud-to-ground lightning strike area on the corresponding regional map, and connect the coordinates of adjacent cloud-to-ground lightning strike points in a straight line to generate a lightning strike area face value;

[0011] The location analysis module is used to combine and compare the lightning strike area values ​​of each season and the cloud-to-ground lightning strike time periods stored in the pre-processing module, and calibrate the obtained overlapping areas to obtain the lightning strike frequent occurrence time periods and locations of each season;

[0012] The communicator includes a primary server and a secondary server, which are used to set the propagation path of the calibration signal in the central processing and analysis base station and the classification of the audience group, and store the classification signal value in the primary server and the secondary server.

[0013] Optionally, the cloud-to-ground mine strike point coordinate calculation process includes:

[0014] The azimuth of the lightning strike point relative to the detection station is calculated based on the magnetic field strength generated by the ground lightning magnetic field radiation wave in the preset direction;

[0015] The coordinates of the cloud-to-ground lightning strike point are calculated based on the coordinates and direction angle of the detection station.

[0016] Optionally, the cloud-to-ground mine strike point coordinate calculation process includes:

[0017] Obtain the time when the ground-to-ground lightning that occurs at the ground-to-ground lightning location during cloud-to-ground lightning strikes arrives at the three detection stations, and calculate the time difference and distance of the ground-to-ground lightning arrival between any two detection stations;

[0018] Two hyperbolas are generated based on the time difference and distance of ground lightning between two detection stations;

[0019] Calculate the intersection of the two hyperbolas and obtain the coordinates of the cloud-to-ground lightning strike point.

[0020] Optionally, the location analysis module is also used to mark the transmission lines, administrative areas and high-rise residential buildings covered by the overlapping areas of the lightning strike area, so as to formulate emergency plans for the power dispatching department.

[0021] Optionally, the central processing and analysis base station also includes a database server module;

[0022] The database server module is used to retrieve satellite cloud images and cloud image motion trajectory estimation data obtained by the regional meteorological station;

[0023] The EMS system lightning trip fault data is acquired and the observation target basic data, observation target fault data, GIS data and equipment status data acquired by the digital lightning detection station are stored.

[0024] Optionally, the primary server is used for lightning accident diagnosis, lightning information statistics, lightning warning and equipment status diagnosis signal transmission, as well as transmitting the operating status of the digital lightning detection station and the operating condition signal of the central processing and analysis base station.

[0025] Optionally, the primary server is also used to access a power transmission station or an administrative platform to transmit the power transmission line intersection values, administrative areas and high-rise residential building marking values ​​covered by the overlapping area of ​​the lightning strike area face value obtained by the location analysis module.

[0026] Optionally, the primary server is also used to collect statistics on lightning parameters and post-lightning warning information within the radius of the transmission line corridor.

[0027] Optionally, the secondary server is used for transmitting thunderstorm weather time and regional location signals, real-time display of lightning information, replay demonstration of historical data, dynamic playback of lightning by time, and lightning query by customized objects such as transmission lines, areas, circles or rectangles.

[0028] Optionally, the primary server is a C / S architecture and is built on a dedicated network; the secondary server is a B / S architecture and is built on a wide area network.

[0029] It can be seen from the above technical solutions that this application has the following advantages:

[0030] The wide-area lightning positioning management system provided by the present application compares the face value combinations of lightning strike areas on thunderstorm days in a single quarter stored in the pre-processing module through the position analysis module in the central processing and analysis base station, and calibrates the overlapping areas of the face value combinations of lightning strike areas, and marks the transmission lines, administrative areas and high-rise residential buildings covered by the overlapping areas of the face value of lightning strike areas, thereby increasing the prevention measures for transmission lines and high-rise residential buildings in the area to prevent being struck, and providing power dispatching departments with emergency plans and operation and dispatching plans. It can also quickly query the lightning fault points of transmission lines, identify line accidents in the thunderstorm season, and play an important role in ensuring the safe operation of the power grid. At the same time, it reminds the administrative units in the area to make good later circuit layout and building construction planning, so as to reduce the impact of natural disasters caused by lightning from the source;

[0031] Furthermore, the wide-area lightning positioning management system in the present application is a computer software system that integrates lightning information with objects mainly including power grid and geographic information. It is composed of a primary server and a secondary server, which correspond to different audience groups respectively. The end users have two user modes, B / S and C / S. The user terminal can be a WEB browser, PC application, and mobile phone application, etc. Through a variety of communication paths, personnel from various departments can promptly understand the lightning information in the area, so as to take adequate measures to prevent lightning. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A structural schematic diagram of a wide-area lightning location management system with multiple propagation paths provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] For easier understanding, please refer to Figure 1 , the embodiment of the present application provides a wide-area lightning location management system with multiple propagation paths, including: a digital lightning detection station, a central processing and analysis base station, and a propagator;

[0036] The digital lightning detection station includes a signal acquisition unit, an early warning unit and a data transmission unit. The signal acquisition unit is used to collect the occurrence time, location, lightning current amplitude, polarity, number of return strokes and parameters of each return stroke of cloud-to-ground lightning strikes;

[0037] The early warning unit is used to classify and mark the time, location, lightning current amplitude, polarity, number of return strokes, and parameters of each return stroke of the ground lightning strike, so that the power dispatching department can check and realize radar early warning;

[0038] The data transmission unit is used to transmit the occurrence time, location, lightning current amplitude, polarity, number of return strokes, and parameters of each return stroke of cloud-to-ground lightning strikes to the central processing and analysis base station;

[0039] The central processing and analysis base station includes a pre-processing module and a position analysis module;

[0040] The pre-processing module is used to record the occurrence time of cloud-to-ground lightning strikes, and linearly mark the time period of a single cloud-to-ground lightning strike to generate a lightning strike time period value; mark the location of the cloud-to-ground lightning strike area on the corresponding regional map, and connect the coordinates of adjacent cloud-to-ground lightning strike points with straight lines to generate the lightning strike area face value;

[0041] The location analysis module is used to combine and compare the lightning strike area values ​​of each season and the cloud-to-ground lightning strike time periods stored in the pre-processing module, and calibrate the obtained overlapping areas to obtain the lightning strike frequent occurrence time periods and locations of each season;

[0042] The communicator includes a primary server and a secondary server, which are used to set the propagation path of the calibration signal in the central processing and analysis base station and the classification of the audience group, and store the classification signal values ​​in the primary server and the secondary server.

[0043] With the continuous expansion of the power grid and the increasing risk of lightning accidents, higher requirements are put forward for the performance indicators of lightning location systems such as positioning accuracy and detection efficiency, as well as application functions such as real-time lightning intelligent warning. Figure 1 As shown, the wide-area lightning location management system for multiple propagation paths in the present application is mainly composed of a digital lightning detection station, a central processing and analysis base station and a propagator.

[0044] The digital lightning detection station is responsible for the collection of lightning electromagnetic wave signals and is the basis of the entire system. There are multiple digital lightning detection stations, which include early warning units, signal collection units, and data transmission units. Among them, the signal collection unit uses electromagnetic telemetry technology, satellite synchronization technology, geographic information system, lightning telemetry, waveform propagation delay processing, and over-range computing technology, combined with time arrival and directional comprehensive positioning models, to calculate the occurrence time, location, lightning current amplitude and polarity, number of return strokes, and parameters of each return stroke of cloud-to-ground lightning strikes in real time. The means of obtaining the occurrence time, location, lightning current amplitude and polarity, number of return strokes, and parameters of each return stroke of such cloud-to-ground lightning strikes are existing mature means. For this purpose, the signal values ​​such as the occurrence time, location, lightning current amplitude and polarity, number of return strokes, and parameters of each return stroke of cloud-to-ground lightning strikes are processed, and combined with externally collected signals, the information such as the period, frequency, and area of ​​lightning occurrence in the area can be inferred.

[0045] The early warning unit is used to classify and mark the occurrence time, location, lightning current amplitude and polarity, number of return strokes, and parameters of each return stroke of cloud-to-ground lightning strikes collected by the signal acquisition unit, including: recording the cloud-to-ground lightning strike time data, calibrating the location (coordinates) of the cloud-to-ground lightning strike area; recording the lightning current amplitude and polarity, the number of return strokes, and the comprehensive value of the parameters of each return stroke, and repeatedly calibrating the lightning current amplitude and polarity, the number of return strokes, and the extreme values ​​of the parameters of each return stroke. Among them, the recording of the cloud-to-ground lightning strike time data and location data plays a specific role in the time and area of ​​lightning occurrence, while the recording of the lightning current amplitude and polarity, the number of return strokes, and the comprehensive value of the parameters of each return stroke, thereby realizing lightning early warning, providing power dispatching departments with a specific role in formulating plans, arranging operation and dispatching plans, and quickly querying lightning fault points on transmission lines, and at the same time facilitating later power scientific research and investigation.

[0046] The data sending unit is used to send the signal values ​​collected by the signal acquisition unit and the early warning unit to the central processing and analysis base station. The central processing and analysis base station can use electromagnetic telemetry technology to convert the collected parameters into electrical signals, and the converter converts the electrical signals into signals suitable for the input requirements of the multi-channel transmission equipment.

[0047] The central processing and analysis base station includes a pre-processing module and a location analysis module. The pre-processing module is used to record the occurrence time of cloud-to-ground lightning strikes, and linearly mark the time period of a single cloud-to-ground lightning strike, and finally form a lightning strike time period value, that is, to mark and record the start time of lightning in a single thunderstorm weather.

[0048] The pre-processing module can also mark the location of the cloud-to-ground lightning strike area on the corresponding regional map, and connect the coordinates of adjacent cloud-to-ground lightning strike points with straight lines to ultimately form the face value of the lightning strike area.

[0049] In the first embodiment, the calculation process of the cloud-to-ground lightning strike point coordinates includes: calculating the azimuth of the lightning strike point relative to the detection station based on the magnetic field strength generated by the ground lightning magnetic field radiation wave in a preset direction; and calculating the cloud-to-ground lightning strike point coordinates based on the coordinates and direction angle of the detection station.

[0050] The magnetic field radiation wave of ground lightning is obtained by passing through the orthogonal frame antenna of the detection station. The magnetic field strengths generated by the antenna in the north-south and east-west directions are Hns and Hwe respectively. By calculating tana=Hns / Hwe, the azimuth of the lightning strike point relative to the detection station can be obtained. The coordinates and azimuth of the two detection stations can be used to obtain the coordinates of the cloud-to-ground lightning strike point.

[0051] In the second embodiment, the calculation process of the coordinates of the cloud-to-ground lightning strike point includes: obtaining the moment when the ground lightning that occurs at the ground lightning position when the cloud-to-ground lightning strikes arrives at three detection stations, and calculating the time difference and distance of the ground lightning arrival between each two detection stations; generating two hyperbolas based on the time difference and distance of the ground lightning arrival between each two detection stations; calculating the intersection of the two hyperbolas to obtain the coordinates of the cloud-to-ground lightning strike point.

[0052] This method requires three detection stations. Let P be the location of the ground lightning. The moment when the ground lightning occurring at P reaches the detection station is measured. There is a time difference and a corresponding distance difference between every two stations, forming a hyperbola. Lightning strikes a point on this hyperbola. When the third detection station meets the positioning conditions, another hyperbola is formed. The intersection point P of the two hyperbolas is the cloud-to-ground lightning strike point. The intersection point P is the coordinate of the cloud-to-ground lightning strike point.

[0053] In the third embodiment, considering that the lightning location method in the first embodiment is greatly affected by the anomalous distortion of lightning, but has few observation points; the lightning location method in the second embodiment has high detection accuracy, but has many observation points, the method of the embodiment of the present application preferably combines the above two lightning location methods to finally obtain the coordinates of the cloud-to-ground lightning strike point. Usually, there will be multiple lightning strike points in a single cloud-to-ground lightning strike time period, and the positions of multiple lightning strike points above the corresponding area are obtained, and multiple lightning strike points in the time period are marked, and then the adjacent cloud-to-ground lightning strike points are connected in a straight line to finally form the face value of the lightning strike area in the area. Since there is no lightning anomalous distortion branch involved, a single lightning only generates a single lightning strike point, so that the face value of the entire lightning strike area will not be too complicated.

[0054] The pre-processing module can also obtain the lightning current amplitude and polarity, the number of return strokes and the extreme values ​​of parameters of each return stroke in the early warning unit, and classify and store the lightning current amplitude, polarity, the number of return strokes and the extreme values ​​of parameters of each return stroke.

[0055] The lightning signal value preliminarily processed by the pre-processing module will be sent to the position analysis module in the central processing and analysis base station, and the position analysis module is used to compare the linear value combination of the lightning strike area face value and the cloud-to-ground lightning strike time period stored in the pre-processing module in a single quarter of thunderstorm days, and overlap the linear value combination of the lightning strike area face value and the cloud-to-ground lightning strike time period, and calibrate the obtained overlapping area. The calibration value here represents the time period and location of frequent lightning strikes in a single quarter; at the same time, the transmission lines, administrative areas and high-rise residential buildings covered by the overlapping area of ​​the lightning strike area face value are marked to remind the need for timely prevention of high-frequency lightning strikes in the area, to formulate plans for the power dispatching department, to arrange operation and dispatching plans, and to quickly query the lightning fault points of the transmission lines, to identify line accidents in the thunderstorm season, and to play an important role in ensuring the safe operation of the power grid. For the municipal department, more comprehensive lightning protection work should be done for the construction and circuit laying involved in the frequent thunderstorms in the area, and for the residents, it needs to serve as a reminder that if there is thunderstorm in the area, try not to go out and be prepared to prevent thunderstorms.

[0056] Furthermore, the central processing and analysis base station also includes a database server module, which is used to retrieve satellite cloud images and cloud image motion trajectory estimation data obtained by the meteorological station in the corresponding area; obtain EMS system lightning trip fault data and store the observation target basic data, observation target fault data, GIS data and equipment status data obtained by the digital lightning detection station. By obtaining external data through the database server module, it is possible to timely understand the digital lightning detection stations covered by the entire thunderstorm weather, and to display and remind the operating status and working conditions of the digital lightning detection stations in the area, so that dedicated personnel can perform maintenance work on the digital lightning detection stations in a timely manner. At the same time, the database server module is also used to integrate the data in the pre-processing module and the location analysis module for storage, so as to facilitate the use and scheduling of data by later personnel.

[0057] The propagator includes a primary server and a secondary server. In order to improve the operation rate of the entire primary server, the audience group permissions of the primary server can be pre-constrained. It can be set that only power-related departments and administrative departments have the authority to access the primary server. At the same time, the entire primary server can directly access the location analysis module, thereby obtaining the time period and location of frequent lightning strikes in a single quarter in the location analysis module, as well as the transmission lines, administrative areas and high-rise residential building marking signals covered by the overlapping areas of the lightning strike area, and at the same time send lightning parameter statistics and post-warning information of lightning strikes within the radius of the transmission line corridor, so as to realize the rapid arrangement of power operation scheduling and rapid troubleshooting of transmission line fault points, so that the corresponding administrative departments can do a good job in building construction and circuit laying lightning protection. The primary server is a C / S architecture, built on a dedicated network, a small-scale network environment, and a dedicated server provides connection and data exchange services between local area networks, using dedicated client software.

[0058] The primary server is used to store and lock the private lightning signal values ​​processed by the central processing and analysis base station. Since the administrative department obtains the transmission line signals covered by the lightning strike area and the municipal planning will use the lightning distribution information of the area, these lightning signals need to be encrypted and saved to avoid information leakage.

[0059] The primary server is also used for lightning accident diagnosis, lightning information statistics, lightning warning and equipment status diagnosis signal transmission, transmission of digital lightning detection station operation status and central processing and analysis of base station working condition signals, and subsequent inspection and maintenance of digital lightning detection stations, thereby building a more solid dynamic lightning monitoring network.

[0060] The secondary server in the transmitter is used to transmit the thunderstorm weather time and regional location signal. It adopts B / S architecture and is built on the wide area network. It does not need a special network hardware environment, such as telephone Internet access, rental equipment, and self-management of information. It has a stronger adaptability than C / S. Generally, as long as there is an operating system and a browser, the audience group is relatively wide. The masses can obtain the thunderstorm weather location and real-time lightning information in the area at the first time, as well as the later dynamic lightning playback, lightning query according to the transmission line, area, circle or rectangle custom object, so as to inform the masses in the area to avoid outdoor activities.

[0061] The wide-area lightning positioning management system in the present application compares the face value combinations of lightning strike areas on thunderstorm days in a single quarter stored in the pre-processing module through the position analysis module in the central processing and analysis base station, and calibrates the overlapping areas of the face value combinations of lightning strike areas, and marks the transmission lines, administrative areas and high-rise residential buildings covered by the overlapping areas of the face value of lightning strike areas, thereby increasing the prevention measures for transmission lines and high-rise residential buildings in the area to prevent being struck, and providing power dispatching departments with emergency plans and operation and dispatching plans. It can also quickly query the lightning fault points of transmission lines, identify line accidents in the thunderstorm season, and play an important role in ensuring the safe operation of the power grid. At the same time, it reminds the administrative units in the area to make good later circuit layout and building construction planning, so as to reduce the impact of natural disasters caused by lightning from the source;

[0062] The wide-area lightning positioning management system in this application is a computer software system that integrates lightning information with power grids and geographic information. It consists of a primary server and a secondary server, which correspond to different audience groups. The end users have two user modes, B / S and C / S. The user terminal can be a WEB browser, PC application, and mobile phone application, etc. Through a variety of communication paths, personnel from various departments can promptly understand the lightning information in the area, so as to take adequate measures to prevent lightning.

[0063] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0064] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0065] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0066] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0067] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0068] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0069] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions for executing all or part of the steps of the method described in each embodiment of the present application through a computer device (which can be a personal computer, server, or network device, etc.). The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (full name in English: Read-Only Memory, English abbreviation: ROM), random access memory (full name in English: Random Access Memory, English abbreviation: RAM), disk or optical disk and other media that can store program codes.

[0070] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A wide-area lightning location management system with multiple propagation paths, characterized in that: include: Digital lightning detection stations, central processing and analysis base stations and propagators; The digital lightning detection station includes a signal acquisition unit, an early warning unit and a data transmission unit. The signal acquisition unit is used to collect the occurrence time, location, lightning current amplitude, polarity, number of return strokes and parameters of each return stroke of cloud-to-ground lightning strikes; The early warning unit is used to classify and mark the occurrence time, location, lightning current amplitude, polarity, number of return strokes, and parameters of each return stroke of the ground lightning strike, so as to provide the power dispatching department with a view to realize radar early warning; The data transmission unit is used to transmit the occurrence time, location, lightning current amplitude, polarity, number of return strokes, and parameters of each return stroke of cloud-to-ground lightning strikes to the central processing and analysis base station; The central processing and analysis base station includes a pre-processing module and a position analysis module; The pre-processing module is used to record the occurrence time of cloud-to-ground lightning strikes, and linearly mark the time period of a single cloud-to-ground lightning strike to generate a lightning strike time period value; Mark the cloud-to-ground lightning strike area locations on the corresponding regional map, and connect the coordinates of adjacent cloud-to-ground lightning strike points with straight lines to generate the lightning strike area face value; The location analysis module is used to combine and compare the lightning strike area values ​​of each season and the cloud-to-ground lightning strike time periods stored in the pre-processing module, and calibrate the obtained overlapping areas to obtain the lightning strike frequent occurrence time periods and locations of each season; The communicator includes a primary server and a secondary server, which are used to set the propagation path of the calibration signal in the central processing and analysis base station and the classification of the audience group, and store the classification signal value in the primary server and the secondary server.

2. The wide-area lightning location management system with multiple propagation paths according to claim 1, characterized in that: The calculation process of the cloud-to-ground mine strike point coordinates includes: The azimuth of the lightning strike point relative to the detection station is calculated based on the magnetic field strength generated by the ground lightning magnetic field radiation wave in the preset direction; The coordinates of the cloud-to-ground lightning strike point are calculated based on the coordinates and direction angle of the detection station.

3. The wide-area lightning location management system with multiple propagation paths according to claim 1, characterized in that: The calculation process of the cloud-to-ground mine strike point coordinates includes: Obtain the time when the ground-to-ground lightning that occurs at the ground-to-ground lightning location during cloud-to-ground lightning strikes arrives at the three detection stations, and calculate the time difference and distance of the ground-to-ground lightning arrival between any two detection stations; Two hyperbolas are generated based on the time difference and distance of ground lightning between two detection stations; Calculate the intersection of the two hyperbolas and obtain the coordinates of the cloud-to-ground lightning strike point.

4. The wide-area lightning location management system with multiple propagation paths according to claim 1, characterized in that: The location analysis module is also used to mark the transmission lines, administrative areas and high-rise residential buildings covered by the overlapping areas of the lightning strike area, so as to provide the power dispatching department with a plan.

5. The wide-area lightning location management system with multiple propagation paths according to claim 1, characterized in that: The central processing and analysis base station also includes a database server module; The database server module is used to retrieve satellite cloud images and cloud image motion trajectory estimation data obtained by the regional meteorological station; The EMS system lightning trip fault data is acquired and the observation target basic data, observation target fault data, GIS data and equipment status data acquired by the digital lightning detection station are stored.

6. The wide-area lightning location management system with multiple propagation paths according to claim 1, characterized in that: The primary server is used for lightning accident diagnosis, lightning information statistics, lightning warning and equipment status diagnosis signal transmission, as well as the operation status of the digital lightning detection station and the working condition signal of the central processing and analysis base station.

7. The wide-area lightning location management system with multiple propagation paths according to claim 6, characterized in that: The primary server is also used to access the power transmission station or administrative platform to transmit the power transmission line intersection value, administrative area and high-rise residential building mark value covered by the overlapping area of ​​the lightning strike area face value obtained by the location analysis module.

8. The wide-area lightning location management system with multiple propagation paths according to claim 6, characterized in that: The primary server is also used to count lightning parameters and transmit post-lightning warning information within the radius of the transmission line corridor.

9. The wide-area lightning location management system with multiple propagation paths according to claim 1, characterized in that: The secondary server is used for transmitting thunderstorm weather time and regional location signals, real-time display of lightning information, replay demonstration of historical data, dynamic playback of lightning by time, and lightning query by transmission line, area, circle or rectangle custom objects.

10. The wide-area lightning location management system with multiple propagation paths according to claim 1, characterized in that: The primary server is a C / S architecture and is built on a dedicated network; the secondary server is a B / S architecture and is built on a wide area network.

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