Power transmission project line channel lightning positioning method, system, device and medium

Abstract

The invention discloses a power transmission project line channel lightning positioning method, system and device and a medium, and the method comprises the steps: carrying out the lightning monitoring analysis of a power transmission project line channel, and carrying out the collection and analysis of the lightning parameters of a sub-channel in each detection time period through a time period division and road section division mode; therefore, the thunder threat degree and the thunder threat frequency of the sub-channel in the detection time period are analyzed through the thunder coefficient, the thunder characteristics can be analyzed according to the timeline and the power transmission line, and the thunder monitoring result accuracy is improved.

Description

Technical Field

[0001] The present application relates to the technical field of lightning location, and in particular to a method, system, device and medium for locating lightning in a line channel of a power transmission project. Background Art

[0002] The lightning location system is a complete set of fully automatic, large-area, high-precision, continuous, real-time lightning monitoring system. It can display various lightning parameters such as the time, location, number of return strokes, etc. of lightning strikes in real time, and can share lightning information in real time. It is a high-tech technology for observing and studying lightning and conducting lightning early warning.

[0003] The lightning location method used by the existing lightning location management system cannot analyze the lightning threat frequency and overall lightning threat level of the road, and thus cannot analyze the lightning characteristics according to the timeline and transmission line, resulting in low accuracy of lightning monitoring results. Summary of the invention

[0004] The present application provides a method, system, device and medium for locating lightning in a power transmission project line channel, which is used to improve the problem that the existing technology cannot analyze the lightning threat frequency and overall lightning threat level of the road, and thus cannot analyze the lightning characteristics according to the timeline and transmission line, resulting in low accuracy of lightning monitoring results.

[0005] In view of this, the first aspect of the present application provides a method for locating lightning in a transmission line channel, comprising:

[0006] The detection cycle is divided into several detection periods, and the transmission project line channel is divided into several sub-channels, and the lightning current data, lightning current steepness data and impulse overvoltage data of each sub-channel in the detection period are obtained, and the lightning coefficient of each sub-channel in the detection period is calculated;

[0007] Determine the lightning characteristics of each sub-channel during the detection period by comparing the lightning coefficient of each sub-channel during the detection period with the lightning threshold;

[0008] Calculate the ratio of the number of sub-channels with dangerous lightning characteristics to all sub-channels during the detection period to obtain the coverage factor of the detection period;

[0009] Determine the safety period by the coverage factor of the detection period, calculate the ratio of all safety periods to all detection periods, and obtain the safety factor;

[0010] By comparing the safety factor with the safety threshold, it is determined whether there is an overall lightning threat in the power transmission project line channel within the detection period;

[0011] If there is an overall lightning threat in the transmission project line channel within the detection period, the ratio of the number of detection periods in which the lightning characteristics of each sub-channel are dangerous to the number of all detection periods is calculated to obtain the frequency coefficient of each sub-channel;

[0012] By comparing the frequency coefficient of each sub-channel with the frequency threshold, determining whether each sub-channel is a dangerous channel;

[0013] Determine whether the lightning threat frequency of the power transmission project line channel meets the requirements according to the ratio of the number of the dangerous channel to all sub-channels, obtain the frequency signal, and send the frequency signal to the mobile phone terminal of the manager.

[0014] Optionally, the lightning coefficient of each sub-channel during the detection period is calculated, including:

[0015] The lightning current data of each sub-channel in the detection period are weighted by the current coefficient to obtain the current weighted value of each sub-channel in the detection period;

[0016] The lightning current steepness data of each sub-channel in the detection period is weighted by the steepness coefficient to obtain the steepness weighted value of each sub-channel in the detection period;

[0017] The impulse overvoltage data of each sub-channel in the detection period is weighted by the voltage coefficient to obtain the voltage weighted value of each sub-channel in the detection period;

[0018] The current weighted value, steepness weighted value and voltage weighted value of each sub-channel in the detection period are summed to obtain the lightning coefficient of each sub-channel in the detection period;

[0019] The current coefficient is greater than the steepness coefficient, and the steepness coefficient is greater than the voltage coefficient.

[0020] Optionally, determining the lightning characteristics of each sub-channel in the detection period by comparing the lightning coefficient of each sub-channel in the detection period with the lightning threshold value includes:

[0021] Comparing the lightning coefficient and the lightning threshold of each sub-channel within the detection period;

[0022] If the lightning coefficient is less than the lightning threshold, it is determined that the corresponding sub-channel has no lightning threat during the detection period, and the lightning characteristics of the corresponding sub-channel during the detection period are marked as safe;

[0023] If the lightning coefficient is greater than or equal to the lightning threshold, it is determined that the corresponding sub-channel has a lightning threat during the detection period, and the lightning characteristics of the corresponding sub-channel during the detection period are marked as dangerous.

[0024] Optionally, the safe period is determined by the coverage factor of the detection period, including:

[0025] Compare the coverage factor of the detection period with the coverage threshold;

[0026] If the coverage coefficient is less than the coverage threshold, it is determined that the lightning threat coverage of the corresponding detection area meets the requirement, and the corresponding detection period is marked as a safe period;

[0027] If the coverage coefficient is greater than or equal to the coverage threshold, it is determined that the lightning threat coverage level of the corresponding detection area does not meet the requirement, and the corresponding detection period is marked as a dangerous period.

[0028] Optionally, determining whether the lightning threat frequency of the transmission project line channel meets the requirement according to the ratio of the number of the dangerous channel to all sub-channels, and obtaining the frequency signal includes:

[0029] Calculate the ratio of the number of the dangerous channel to the number of all sub-channels to obtain the danger coefficient of the transmission project line channel;

[0030] Comparing the risk factor with the risk threshold;

[0031] If the risk factor is less than the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period meets the requirement, and a normal frequency signal is generated;

[0032] If the risk factor is greater than or equal to the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period does not meet the requirements, and a frequency abnormality signal is generated.

[0033] The second aspect of the present application provides a lightning location system for a power transmission project line channel, comprising:

[0034] A lightning detection module is used to divide the detection cycle into several detection time periods, divide the transmission project line channel into several sub-channels, obtain the lightning current data, lightning current steepness data and impulse overvoltage data of each sub-channel in the detection time period and calculate the lightning coefficient of each sub-channel in the detection time period; determine the lightning characteristics of each sub-channel in the detection time period by comparing the lightning coefficient of each sub-channel in the detection time period with the lightning threshold, and send the lightning characteristics of each sub-channel in the detection time period to the positioning management platform;

[0035] A positioning management platform, used to send the lightning characteristics of each sub-channel within the detection period to a coverage analysis module and a frequency monitoring module;

[0036] The coverage analysis module is used to calculate the ratio of the number of sub-channels with dangerous lightning characteristics to all sub-channels within the detection period to obtain the coverage coefficient of the detection period; determine the safe period by the coverage coefficient of the detection period, calculate the ratio of the number of all safe periods to all detection periods, and obtain the safety factor; by comparing the safety factor with the safety threshold, determine whether there is an overall lightning threat to the power transmission project line channel within the detection period, and send an overall warning signal to the positioning management platform when it is determined that there is an overall lightning threat to the power transmission project line channel within the detection period, so that the positioning management platform sends a frequency monitoring instruction to the frequency monitoring module;

[0037] The frequency monitoring module is used to calculate the ratio of the number of detection periods in which the lightning characteristics of each sub-channel are dangerous to all detection periods, and obtain the frequency coefficient of each sub-channel; determine whether each sub-channel is a dangerous channel by comparing the frequency coefficient of each sub-channel with the frequency threshold; determine whether the lightning threat frequency of the transmission project line channel meets the requirements based on the ratio of the number of dangerous channels to all sub-channels, obtain the frequency signal, and send the frequency signal to the positioning management platform, so that the positioning management platform sends the frequency signal to the mobile phone terminal of the manager.

[0038] Optionally, the lightning coefficient of each sub-channel during the detection period is calculated, including:

[0039] The lightning current data of each sub-channel in the detection period are weighted by the current coefficient to obtain the current weighted value of each sub-channel in the detection period;

[0040] The lightning current steepness data of each sub-channel in the detection period is weighted by the steepness coefficient to obtain the steepness weighted value of each sub-channel in the detection period;

[0041] The impulse overvoltage data of each sub-channel in the detection period is weighted by the voltage coefficient to obtain the voltage weighted value of each sub-channel in the detection period;

[0042] The current weighted value, steepness weighted value and voltage weighted value of each sub-channel in the detection period are summed to obtain the lightning coefficient of each sub-channel in the detection period;

[0043] The current coefficient is greater than the steepness coefficient, and the steepness coefficient is greater than the voltage coefficient.

[0044] Optionally, determining whether the lightning threat frequency of the transmission project line channel meets the requirement according to the ratio of the number of the dangerous channel to all sub-channels, and obtaining the frequency signal includes:

[0045] Calculate the ratio of the number of the dangerous channel to the number of all sub-channels to obtain the danger coefficient of the transmission project line channel;

[0046] Comparing the risk factor with the risk threshold;

[0047] If the risk factor is less than the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period meets the requirement, and a normal frequency signal is generated;

[0048] If the risk factor is greater than or equal to the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period does not meet the requirements, and a frequency abnormality signal is generated.

[0049] A third aspect of the present application provides an electronic device, the device comprising a processor and a memory;

[0050] The memory is used to store program codes and transmit the program codes to the processor;

[0051] The processor is used to execute the lightning locating method for a power transmission project line channel according to any one of the first aspects according to the instructions in the program code.

[0052] In a fourth aspect, the present application provides a computer-readable storage medium, which is used to store program code. When the program code is executed by a processor, it implements the method for locating lightning in a power transmission project line channel as described in any one of the first aspects.

[0053] It can be seen from the above technical solutions that this application has the following advantages:

[0054] The method for locating lightning in a power transmission project line channel provided in the present application can perform lightning monitoring and analysis on the power transmission project line channel, collect and analyze lightning parameters of the sub-channel in each detection period by dividing the time period and the section, and thus analyze the lightning threat degree and the lightning threat frequency of the sub-channel in the detection period by the lightning coefficient, so that the lightning characteristics can be analyzed according to the time line and the transmission line, thereby improving the accuracy of the lightning monitoring results. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] 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.

[0056] Figure 1A schematic diagram of a flow chart of a method for locating lightning in a transmission engineering line channel provided in an embodiment of the present application;

[0057] Figure 2 A structural schematic diagram of a lightning locating system for a power transmission engineering line channel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0058] 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.

[0059] For easier understanding, please refer to Figure 1 The present application embodiment provides a method for locating lightning in a power transmission line channel, including:

[0060] Step 110: divide the detection cycle into several detection time periods, divide the transmission project line channel into several sub-channels, obtain the lightning current data, lightning current steepness data and impulse overvoltage data of each sub-channel in the detection period, and calculate the lightning coefficient of each sub-channel in the detection period.

[0061] Divide the detection period T into N detection time periods t, T={t 1 ,t 2 ,...,t j ,...,t N}; Divide the transmission line channel L into M sub-channels l, L={l 1 ,l 2 ,...,l i ,...,l M}. Get each sub-channel l i During the detection period t j The lightning current data DL (i.e. the lightning current amplitude when a lightning strike occurs in the sub-channel during the detection period), the lightning current steepness data DD (i.e. the lightning current steepness when a lightning strike occurs in the sub-channel during the detection period) and the impulse overvoltage data DY (i.e. the impulse overvoltage when a lightning strike occurs in the sub-channel during the detection period).

[0062] According to each sub-channel l i During the detection period t j The lightning current data DL, lightning current steepness data DD and impulse overvoltage data DY in the detection period are used to calculate the lightning coefficient of each sub-channel in the detection period. Specifically:

[0063] The lightning current data DL of each sub-channel in the detection period is weighted by the current coefficient α1 to obtain the current weighted value of each sub-channel in the detection period ;

[0064] The lightning current steepness data DD of each sub-channel in the detection period is weighted by the steepness coefficient α2 to obtain the steepness weighted value of each sub-channel in the detection period. ;

[0065] The impulse overvoltage data DY of each sub-channel in the detection period is weighted by the voltage coefficient α3 to obtain the voltage weighted value of each sub-channel in the detection period ;

[0066] The current weighted value, steepness weighted value and voltage weighted value of each sub-channel in the detection period are summed to obtain the lightning coefficient of each sub-channel in the detection period. ;

[0067] Among them, the current coefficient is greater than the steepness coefficient, and the steepness coefficient is greater than the voltage coefficient, that is, α1>α2>α3>1, and α1, α2 and α3 are all proportional coefficients.

[0068] Step 120: Determine the lightning characteristics of each sub-channel during the detection period by comparing the lightning coefficient of each sub-channel during the detection period with the lightning threshold.

[0069] Compare each sub-channel l i During the detection period t j Lightning coefficient LD ij With lightning threshold LD max size;

[0070] If the lightning factor LD ij Less than the lightning threshold LD max , then determine the corresponding subchannel l i During the detection period t j There is no lightning threat, and the corresponding sub-channel l i During the detection period t j Lightning characteristics F ij Mark as safe;

[0071] If the lightning factor LD ij Greater than or equal to the lightning threshold LD max , then determine the corresponding subchannel l i During the detection period t j There is a threat of lightning in the corresponding sub-channel l i During the detection period t j Lightning characteristics F ij Marked as dangerous.

[0072] Conduct lightning monitoring and analysis on the transmission project line channel, collect and analyze the lightning parameters of the sub-channel in each detection period by dividing the time period and section, and obtain the lightning coefficient by comprehensive analysis and calculation of multiple lightning parameters. Then, the lightning threat level of the sub-channel in the detection period can be fed back through the lightning coefficient.

[0073] Step 130: Calculate the ratio of the number of sub-channels with dangerous lightning characteristics to all sub-channels within the detection period to obtain the coverage factor of the detection period.

[0074] Calculate the detection period t j The ratio of the number of sub-channels marked as dangerous by lightning characteristics to all sub-channels in (j=1,2,...,N) is used to obtain the detection period t j The coverage factor f j .

[0075] Step 140: determine the safety period by the coverage factor of the detection period, calculate the ratio of all safety periods to all detection periods, and obtain the safety factor.

[0076] Comparison detection period t j The coverage factor f j With coverage threshold f max size;

[0077] If the coverage factor f j Less than the coverage threshold f max , then it is determined that the lightning threat coverage of the corresponding detection area meets the requirements, and the corresponding detection period t j Mark as safe period;

[0078] If the coverage factor f j Greater than or equal to the coverage threshold f max , it is determined that the lightning threat coverage of the corresponding detection area does not meet the requirements, and the corresponding detection period t j Mark as dangerous period;

[0079] The safety factor is obtained by calculating the ratio of all safety periods to all detection periods.

[0080] Step 150: Determine whether there is an overall lightning threat in the power transmission project line channel within the detection period by comparing the safety factor with the safety threshold.

[0081] If the safety factor is less than the safety threshold, it is determined that there is an overall lightning threat in the transmission project line channel L within the detection period T. At this time, an overall warning signal can be generated and sent to the mobile phone terminal of the manager;

[0082] If the safety factor is greater than or equal to the safety threshold, it is determined that there is no overall lightning threat in the transmission project line channel L within the detection period T. At this time, an overall safety signal can be generated and sent to the mobile phone terminal of the manager.

[0083] The overall lightning threat of the transmission project line channel is analyzed, and the safety factor is obtained by analyzing the proportion of safe periods within the detection period. The overall lightning threat of the transmission project line channel within the detection period is fed back through the safety factor, and an early warning is issued when the overall lightning threat is abnormal.

[0084] Step 160: If there is an overall lightning threat in the power transmission project line channel within the detection period, the ratio of the number of detection periods in which the lightning characteristics of each sub-channel are dangerous to all detection periods is calculated to obtain the frequency coefficient of each sub-channel.

[0085] If there is an overall lightning threat in the transmission line channel L within the detection period T, then further calculate each sub-channel l i Lightning characteristics F ij is the dangerous detection period t j The ratio of the number of all detection periods is obtained to obtain the l i The frequency coefficient P i .

[0086] Step 170: Determine whether each sub-channel is a dangerous channel by comparing the frequency coefficient of each sub-channel with the frequency threshold.

[0087] If the frequency coefficient P i Less than the frequency threshold P max , then determine the corresponding subchannel l i If the lightning threat frequency within the detection period meets the requirements, the corresponding sub-channel l i Marked as a safe channel; if the frequency coefficient P i Greater than or equal to the frequency threshold P max , then determine the corresponding subchannel l i If the lightning threat frequency within the detection period does not meet the requirements, the corresponding sub-channel l i Mark as a dangerous channel. Use the frequency coefficient to identify whether a sub-channel is a dangerous channel, thereby realizing lightning location in the transmission line channel of the power transmission project. The dangerous channel can be sent to the mobile terminal of the manager to realize lightning hazard warning.

[0088] Step 180: determine whether the lightning threat frequency of the transmission project line channel meets the requirements based on the ratio of the number of dangerous channels to all sub-channels, obtain the frequency signal, and send the frequency signal to the mobile phone terminal of the manager.

[0089] Calculate the ratio of the number of dangerous channels to all sub-channels to obtain the danger factor of the transmission project line channel;

[0090] Compare the risk factor with the risk threshold;

[0091] If the risk factor is less than the risk threshold, it is determined that the lightning threat frequency of the transmission project line channel within the detection period meets the requirements, a normal frequency signal is generated and sent to the mobile phone terminal of the manager;

[0092] If the risk factor is greater than or equal to the risk threshold, it is determined that the lightning threat frequency of the transmission project line channel within the detection period does not meet the requirements, and a frequency abnormality signal is generated and sent to the mobile phone terminal of the manager.

[0093] The lightning threat frequency of the transmission project line channel is monitored and analyzed, and the frequency coefficient is obtained by calculating the ratio of the number of safe periods to the number of detection periods. The lightning threat frequency of the sub-channel within the detection period is monitored by the frequency coefficient, and an early warning is issued when the lightning threat frequency of the transmission project line channel within the detection period is abnormal.

[0094] The method for locating lightning in a power transmission project line channel provided in the present application can perform lightning monitoring and analysis on the power transmission project line channel, collect and analyze lightning parameters of the sub-channel in each detection period by dividing the time period and the section, and thus analyze the lightning threat degree and the lightning threat frequency of the sub-channel in the detection period by the lightning coefficient, so that the lightning characteristics can be analyzed according to the time line and the transmission line, thereby improving the accuracy of the lightning monitoring results.

[0095] The above is an embodiment of a method for locating lightning in a power transmission project line channel provided by the present application, and the following is an embodiment of a system for locating lightning in a power transmission project line channel provided by the present application.

[0096] Please check Figure 2 , a lightning locating system for a power transmission engineering line channel provided in an embodiment of the present application includes:

[0097] The lightning detection module is used to divide the detection cycle into several detection periods, divide the transmission project line channel into several sub-channels, obtain the lightning current data, lightning current steepness data and impulse overvoltage data of each sub-channel in the detection period, and calculate the lightning coefficient of each sub-channel in the detection period; by comparing the lightning coefficient of each sub-channel in the detection period with the lightning threshold, determine the lightning characteristics of each sub-channel in the detection period, and send the lightning characteristics of each sub-channel in the detection period to the positioning management platform;

[0098] The positioning management platform is used to send the lightning characteristics of each sub-channel during the detection period to the coverage analysis module and the frequency monitoring module;

[0099] The coverage analysis module is used to calculate the ratio of the number of sub-channels with dangerous lightning characteristics to all sub-channels within the detection period to obtain the coverage coefficient of the detection period; determine the safe period through the coverage coefficient of the detection period, calculate the ratio of the number of all safe periods to all detection periods, and obtain the safety factor; by comparing the safety factor with the safety threshold, determine whether there is an overall lightning threat to the transmission project line channel within the detection period, and send an overall warning signal to the positioning management platform when it is determined that there is an overall lightning threat to the transmission project line channel within the detection period, so that the positioning management platform sends a frequency monitoring instruction to the frequency monitoring module;

[0100] The frequency monitoring module is used to calculate the ratio of the number of detection periods in which the lightning characteristics of each sub-channel are dangerous to all detection periods, and obtain the frequency coefficient of each sub-channel; by comparing the frequency coefficient of each sub-channel with the frequency threshold, determine whether each sub-channel is a dangerous channel; determine whether the lightning threat frequency of the transmission project line channel meets the requirements based on the ratio of the number of dangerous channels to all sub-channels, obtain the frequency signal, and send the frequency signal to the positioning management platform, so that the positioning management platform sends the frequency signal to the mobile phone terminal of the manager.

[0101] The lightning detection module is used to perform lightning detection and analysis on the transmission project line channel, which specifically includes: generating a detection cycle, dividing the detection cycle into several detection periods, dividing the transmission project line channel into several sub-channels, and obtaining the lightning current data DL, lightning current steepness data DD and impulse overvoltage data DY of the sub-channels in the detection period; The lightning coefficient LD of the sub-channel during the detection period is calculated, where α1, α2 and α3 are all proportional coefficients, and α1>α2>α3>1; the lightning threshold LD is obtained through the storage module max , the lightning coefficient LD of the sub-channel during the detection period is compared with the lightning threshold LD max Compare: If the lightning coefficient LD is less than the lightning threshold LD max , then it is determined that the sub-channel has no lightning threat during the detection period, and the lightning characteristics of the sub-channel during the detection period are marked as safe; if the lightning coefficient LD is greater than or equal to the lightning threshold LD max , it is determined that the sub-channel has a lightning threat during the detection period, and the lightning characteristics of the sub-channel during the detection period are marked as dangerous; the lightning characteristics of all sub-channels during the detection period are sent to the positioning management platform, and after receiving the lightning characteristics, the positioning management platform sends the lightning characteristics to the coverage analysis module and the frequency monitoring module.

[0102] The coverage analysis module is used to analyze the overall lightning threat of the transmission project line channel, specifically including: calculating the ratio of the number of sub-channels marked as dangerous by lightning characteristics to all sub-channels during the detection period to obtain the coverage coefficient; obtaining the coverage threshold through the storage module, and comparing the coverage coefficient with the coverage threshold: if the coverage coefficient is less than the coverage threshold, it is determined that the lightning threat coverage of the detection area meets the requirements, and the corresponding detection period is marked as a safe period; if the coverage coefficient is greater than or equal to the coverage threshold, it is determined that the lightning threat coverage of the detection area does not meet the requirements, and the corresponding detection period is marked as a dangerous period; at the end of the detection cycle, the ratio of the number of safe periods to the detection periods is calculated to obtain the safe period. The full coefficient is obtained through the storage module to obtain the safety threshold, and the safety factor is compared with the safety threshold: if the safety factor is less than the safety threshold, it is determined that there is an overall lightning threat to the power transmission project line channel within the detection period, and an overall warning signal is generated and sent to the positioning management platform. After the positioning management platform receives the overall warning signal, it sends the overall warning signal to the manager's mobile terminal; if the safety factor is greater than or equal to the safety threshold, it is determined that there is no overall lightning threat to the power transmission project line within the detection period, and an overall safety signal is generated and sent to the positioning management platform. After receiving the overall safety signal, the positioning management platform sends the overall safety signal to the manager's mobile terminal.

[0103] The frequency monitoring module is used to monitor and analyze the lightning threat frequency of the transmission project line channel, specifically including: when the lightning feature of the sub-channel is marked as dangerous, the corresponding detection period is marked as the marking period of the sub-channel, and the ratio of the marking period to the detection period is calculated to obtain the frequency coefficient of the sub-channel; the frequency threshold is obtained through the storage module, and the frequency coefficient is compared with the frequency threshold. If the frequency coefficient is less than the frequency threshold, it is determined that the lightning threat frequency of the sub-channel in the detection period meets the requirements, and the corresponding sub-channel is marked as a safe channel; if the frequency coefficient is greater than or equal to the frequency threshold, it is determined that the lightning threat frequency of the sub-channel in the detection period does not meet the requirements, and the corresponding sub-channel is marked as a dangerous channel; the ratio of the dangerous channel is calculated. The ratio of the number of channels to all sub-channels is used to obtain the danger coefficient of the transmission project line channel; the danger coefficient is compared with the danger threshold; if the danger coefficient is less than the danger threshold, it is determined that the lightning threat frequency of the transmission project line channel within the detection period meets the requirements, a normal frequency signal is generated and sent to the positioning management platform, and the positioning management platform forwards the normal frequency signal to the mobile terminal of the manager; if the danger coefficient is greater than or equal to the danger threshold, it is determined that the lightning threat frequency of the transmission project line channel within the detection period does not meet the requirements, a frequency abnormality signal is generated and sent to the positioning management platform, and the positioning management platform forwards the frequency abnormality signal to the mobile terminal of the manager.

[0104] In the embodiment of the present application, the lightning detection module can be used to perform lightning monitoring and analysis on the transmission engineering line channel, collect and analyze the lightning parameters of the sub-channel in each detection period by dividing the time period and the road section, and comprehensively analyze and calculate multiple lightning parameters to obtain the lightning coefficient, so as to provide feedback on the lightning threat level of the sub-channel in the detection period through the lightning coefficient;

[0105] The coverage analysis module can be used to analyze the overall lightning threat of the transmission project line channel. The safety factor can be obtained by analyzing the proportion of safe periods within the detection period. The overall lightning threat of the transmission project line channel within the detection period can be fed back through the safety factor, and an early warning can be issued when the overall lightning threat is abnormal.

[0106] The frequency monitoring module can be used to monitor and analyze the lightning threat frequency of the transmission project line channel. The frequency coefficient is obtained by calculating the proportion of the marking period and the detection period. The lightning threat frequency of the sub-channel in the detection period can be monitored through the frequency coefficient, and an early warning can be issued when the lightning threat frequency of the transmission project line channel in the detection period is abnormal.

[0107] The embodiment of the present application also provides an electronic device, the device comprising a processor and a memory;

[0108] The memory is used to store the program code and transmit the program code to the processor;

[0109] The processor is used to execute the lightning location method for the power transmission project line channel in the aforementioned method embodiment according to the instructions in the program code.

[0110] The embodiment of the present application also provides a computer-readable storage medium, which is used to store program code. When the program code is executed by a processor, the method for locating lightning in the line channel of a power transmission project in the aforementioned method embodiment is implemented.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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 method for locating lightning in a power transmission line channel, characterized in that: include: The detection cycle is divided into several detection periods, and the transmission project line channel is divided into several sub-channels, and the lightning current data, lightning current steepness data and impulse overvoltage data of each sub-channel in the detection period are obtained, and the lightning coefficient of each sub-channel in the detection period is calculated; Determine the lightning characteristics of each sub-channel during the detection period by comparing the lightning coefficient of each sub-channel during the detection period with the lightning threshold; Calculate the ratio of the number of sub-channels with dangerous lightning characteristics to all sub-channels during the detection period to obtain the coverage factor of the detection period; Determine the safety period by the coverage factor of the detection period, calculate the ratio of all safety periods to all detection periods, and obtain the safety factor; By comparing the safety factor with the safety threshold, it is determined whether there is an overall lightning threat in the power transmission project line channel within the detection period; If there is an overall lightning threat in the transmission project line channel within the detection period, the ratio of the number of detection periods in which the lightning characteristics of each sub-channel are dangerous to the number of all detection periods is calculated to obtain the frequency coefficient of each sub-channel; By comparing the frequency coefficient of each sub-channel with the frequency threshold, determining whether each sub-channel is a dangerous channel; Determine whether the lightning threat frequency of the power transmission project line channel meets the requirements according to the ratio of the number of the dangerous channel to all sub-channels, obtain the frequency signal, and send the frequency signal to the mobile phone terminal of the manager.

2. The method for locating lightning in a power transmission line channel according to claim 1, characterized in that: Calculate the lightning coefficient of each sub-channel during the detection period, including: The lightning current data of each sub-channel in the detection period are weighted by the current coefficient to obtain the current weighted value of each sub-channel in the detection period; The lightning current steepness data of each sub-channel in the detection period is weighted by the steepness coefficient to obtain the steepness weighted value of each sub-channel in the detection period; The impulse overvoltage data of each sub-channel in the detection period is weighted by the voltage coefficient to obtain the voltage weighted value of each sub-channel in the detection period; The current weighted value, steepness weighted value and voltage weighted value of each sub-channel in the detection period are summed to obtain the lightning coefficient of each sub-channel in the detection period; The current coefficient is greater than the steepness coefficient, and the steepness coefficient is greater than the voltage coefficient.

3. The method for locating lightning in a power transmission line channel according to claim 1, characterized in that: By comparing the lightning coefficient of each sub-channel in the detection period with the lightning threshold, the lightning characteristics of each sub-channel in the detection period are determined, including: Comparing the lightning coefficient and the lightning threshold of each sub-channel within the detection period; If the lightning coefficient is less than the lightning threshold, it is determined that the corresponding sub-channel has no lightning threat during the detection period, and the lightning characteristics of the corresponding sub-channel during the detection period are marked as safe; If the lightning coefficient is greater than or equal to the lightning threshold, it is determined that the corresponding sub-channel has a lightning threat during the detection period, and the lightning characteristics of the corresponding sub-channel during the detection period are marked as dangerous.

4. The method for locating lightning in a power transmission line channel according to claim 1, characterized in that: The safe period is determined by the coverage factor of the detection period, including: Compare the coverage factor of the detection period with the coverage threshold; If the coverage coefficient is less than the coverage threshold, it is determined that the lightning threat coverage of the corresponding detection area meets the requirement, and the corresponding detection period is marked as a safe period; If the coverage coefficient is greater than or equal to the coverage threshold, it is determined that the lightning threat coverage level of the corresponding detection area does not meet the requirement, and the corresponding detection period is marked as a dangerous period.

5. The method for locating lightning in a power transmission line channel according to claim 1, characterized in that: Determining whether the lightning threat frequency of the transmission project line channel meets the requirements according to the ratio of the number of the dangerous channel to all sub-channels, and obtaining the frequency signal, including: Calculate the ratio of the number of the dangerous channel to the number of all sub-channels to obtain the danger coefficient of the transmission project line channel; Comparing the risk factor with the risk threshold; If the risk factor is less than the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period meets the requirement, and a normal frequency signal is generated; If the risk factor is greater than or equal to the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period does not meet the requirements, and a frequency abnormality signal is generated.

6. A lightning location system for a power transmission line channel, characterized in that: include: The lightning detection module is used to divide the detection cycle into several detection periods, divide the transmission project line channel into several sub-channels, obtain the lightning current data, lightning current steepness data and impulse overvoltage data of each sub-channel in the detection period, and calculate the lightning coefficient of each sub-channel in the detection period; By comparing the lightning coefficient of each sub-channel in the detection period with the lightning threshold, the lightning characteristics of each sub-channel in the detection period are determined, and the lightning characteristics of each sub-channel in the detection period are sent to the positioning management platform; A positioning management platform, used to send the lightning characteristics of each sub-channel within the detection period to a coverage analysis module and a frequency monitoring module; The coverage analysis module is used to calculate the ratio of the number of sub-channels with dangerous lightning characteristics to all sub-channels within the detection period to obtain the coverage coefficient of the detection period; determine the safe period according to the coverage coefficient of the detection period, calculate the ratio of the number of all safe periods to all detection periods, and obtain the safety factor; By comparing the safety factor with the safety threshold, it is determined whether there is an overall lightning threat to the power transmission project line channel within the detection period, and when it is determined that there is an overall lightning threat to the power transmission project line channel within the detection period, an overall warning signal is sent to the positioning management platform, so that the positioning management platform sends a frequency monitoring instruction to the frequency monitoring module; The frequency monitoring module is used to calculate the ratio of the number of detection periods in which the lightning characteristics of each sub-channel are dangerous to the number of all detection periods to obtain the frequency coefficient of each sub-channel; by comparing the frequency coefficient of each sub-channel with the frequency threshold, determine whether each sub-channel is a dangerous channel; Determine whether the lightning threat frequency of the transmission project line channel meets the requirements based on the ratio of the number of the dangerous channel to all sub-channels, obtain the frequency signal, and send the frequency signal to the positioning management platform, so that the positioning management platform sends the frequency signal to the mobile phone terminal of the manager.

7. The power transmission engineering line channel lightning location system according to claim 6, characterized in that: Calculate the lightning coefficient of each sub-channel during the detection period, including: The lightning current data of each sub-channel in the detection period are weighted by the current coefficient to obtain the current weighted value of each sub-channel in the detection period; The lightning current steepness data of each sub-channel in the detection period is weighted by the steepness coefficient to obtain the steepness weighted value of each sub-channel in the detection period; The impulse overvoltage data of each sub-channel in the detection period is weighted by the voltage coefficient to obtain the voltage weighted value of each sub-channel in the detection period; The current weighted value, steepness weighted value and voltage weighted value of each sub-channel in the detection period are summed to obtain the lightning coefficient of each sub-channel in the detection period; The current coefficient is greater than the steepness coefficient, and the steepness coefficient is greater than the voltage coefficient.

8. The power transmission engineering line channel lightning location system according to claim 6, characterized in that: Determining whether the lightning threat frequency of the transmission project line channel meets the requirements according to the ratio of the number of the dangerous channel to all sub-channels, and obtaining the frequency signal, including: Calculate the ratio of the number of the dangerous channel to the number of all sub-channels to obtain the danger coefficient of the transmission project line channel; Comparing the risk factor with the risk threshold; If the risk factor is less than the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period meets the requirement, and a normal frequency signal is generated; If the risk factor is greater than or equal to the risk threshold, it is determined that the lightning threat frequency of the power transmission project line channel within the detection period does not meet the requirements, and a frequency abnormality signal is generated.

9. An electronic device, characterized in that: The device comprises a processor and a memory; The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the method for locating lightning in a power transmission project line channel according to any one of claims 1 to 5 according to the instructions in the program code.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store program codes, and when the program codes are executed by a processor, the method for locating lightning in a power transmission engineering line channel according to any one of claims 1 to 5 is implemented.

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