Optimized arrangement method for electrochemical energy storage liquid nitrogen fire extinguishing system

Abstract

The invention discloses an electrochemical energy storage liquid nitrogen fire extinguishing system optimization arrangement method which comprises the steps that basic information of a protection area, a historical arrangement strategy of a fire extinguishing system and historical application information are obtained, and a historical application evaluation value is generated according to the historical application information; evaluating the basic information based on a preset arrangement evaluation index to obtain a reference evaluation value, and dividing the reference evaluation value into a plurality of categories; analyzing the historical arrangement strategies and the historical application evaluation values of the same type of protection areas, and determining an optimal arrangement strategy; obtaining basic information of a to-be-arranged protection area, generating an actual reference evaluation value, determining the category of the to-be-arranged protection area, and constructing a plurality of protection area arrangement simulation models according to the plurality of optimal arrangement strategies of the corresponding category and the basic information; simulation simulation is carried out on the predicted fire type based on the protection area arrangement simulation model, a simulation application evaluation value is generated, an optimal arrangement strategy is determined, the fire extinguishing efficiency of a fire extinguishing system is improved, and economic losses are reduced to the maximum extent.

Description

Technical Field

[0001] This application relates to the technical field of electrochemical energy storage systems, and particularly to an optimized layout method for an electrochemical energy storage liquid nitrogen fire extinguishing system. Background Art

[0002] In recent years, more and more electrochemical energy storage systems use lithium-ion batteries as energy storage carriers. Although electrochemical energy storage systems, as a new energy source, have many advantages, they still have some risks, are prone to thermal runaway, and may cause large-scale fires or explosion accidents.

[0003] In the prior art, the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system is often set by human experience, making it difficult to formulate the optimal layout method for the fire extinguishing system, unable to ensure the fire extinguishing efficiency of the fire extinguishing system, and likely to cause economic losses and casualties to the electrochemical energy storage system. Summary of the Invention

[0004] To solve the above technical problems, this application provides an optimized layout method for an electrochemical energy storage liquid nitrogen fire extinguishing system. By obtaining the basic information of the protected area, the historical layout strategy, and the historical application evaluation value of the historical layout strategy, multiple categories of protected areas and several preferred layout strategies are determined. The category to which the protected area to be laid out belongs is determined, and based on the preferred layout strategy and basic information of the corresponding category, multiple protected area layout simulation models are constructed, and multiple predicted fire types are simulated to obtain the simulation application evaluation value, so as to determine the optimal layout strategy for the protected area to be laid out, improve the fire extinguishing efficiency of the fire extinguishing system, and minimize economic losses to the greatest extent.

[0005] In some embodiments of this application, an optimized layout method for an electrochemical energy storage liquid nitrogen fire extinguishing system is provided, including:

[0006] Obtain the historical layout log, where the historical layout log includes the basic information of the protected area, the historical layout strategy of the fire extinguishing system, and the historical application information of the historical layout strategy, and generate the historical application evaluation value of the corresponding historical layout strategy according to the historical application information;

[0007] Evaluate the basic information of each protected area based on a preset layout evaluation index to obtain multiple reference evaluation values for each protected area, and classify the protected areas according to the reference evaluation values to obtain multiple categories of protected areas;

[0008] Analyze the historical layout strategy and the historical application evaluation value of the protected areas in the same category to determine several preferred layout strategies for the protected areas in each category;

[0009] Obtain the basic information of the protection area to be arranged and generate an actual reference evaluation value. Determine the category of the protection area to be arranged according to the actual reference evaluation value. Construct a number of protection area layout simulation models according to a number of preferred layout strategies corresponding to the category and the basic information of the protection area to be arranged.

[0010] Based on each protection area layout simulation model, perform simulation on multiple predicted fire types, obtain multiple fire simulation results and generate a simulation application evaluation value. Obtain the optimal layout strategy of the protection area to be arranged according to the simulation application evaluation value.

[0011] In some embodiments of the present application, generate a historical application evaluation value corresponding to the historical layout strategy according to the historical application information, including:

[0012] Obtain the historical application information of the historical layout strategy in each historical layout log. The historical application information includes the historical time characteristics, historical temperature change characteristics, historical coverage degree and historical economic benefits corresponding to the historical layout strategy.

[0013] Among them, the historical time characteristics include the historical discovery time node, the historical determination time node and the historical fire extinguishing duration. The historical temperature change characteristics include the historical temperature change rate and historical temperature change amount at multiple preset monitoring points.

[0014] Based on the difference between the historical discovery time node in the historical time characteristics and the standard occurrence time node in the corresponding historical layout log, obtain the historical discovery time difference. Based on the difference between the historical determination time node in the historical time characteristics and the preset standard determination time node, obtain the historical determination time difference.

[0015] Generate the first application sub-evaluation value corresponding to the historical layout strategy according to the historical discovery time difference, the historical determination time difference and the historical fire extinguishing duration.

[0016] Generate the second application sub-evaluation value corresponding to the historical layout strategy based on the historical temperature change rate and historical temperature change amount at multiple preset monitoring points in the historical temperature change characteristics.

[0017] Generate the third application sub-evaluation value corresponding to the historical layout strategy based on the historical coverage degree.

[0018] Set the compensation coefficient corresponding to the historical layout strategy based on the historical economic benefits.

[0019] Generate the historical application evaluation value corresponding to each historical layout strategy according to the first application sub-evaluation value, the second application sub-evaluation value, the third application sub-evaluation value and the compensation coefficient of each historical layout strategy.

[0020] The calculation formula of the historical application evaluation value is:

[0021]

[0022] Among them, Y is the historical application evaluation value, y0 is the compensation coefficient, z1 is the first application evaluation conversion coefficient, t1 is the historical fire extinguishing duration, t2 is the historical discovery time difference, t3 is the historical determination time difference, a1 is the weight coefficient of the historical discovery time difference, a2 is the weight coefficient of the historical determination time difference, z2 is the second application evaluation conversion coefficient, n is the total number of preset monitoring points, w1i is the historical temperature change value at the i-th preset monitoring point, w2i is the historical temperature change rate at the i-th preset monitoring point, b1 is the weight coefficient of the historical temperature change value, b2 is the weight coefficient of the historical temperature change rate, z3 is the third application evaluation conversion coefficient, and F is the historical coverage degree.

[0023] In some embodiments of the present application, the compensation coefficient corresponding to the historical layout strategy is set based on the historical economic benefit, including:

[0024] The first preset economic benefit, the second preset economic benefit, the third preset economic benefit, and the fourth preset economic benefit are preset in advance;

[0025] When the historical economic benefit is less than the first preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the first preset compensation coefficient;

[0026] When the historical economic benefit is between the first preset economic benefit and the second preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the second preset compensation coefficient;

[0027] When the historical economic benefit is between the second preset economic benefit and the third preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the third preset compensation coefficient;

[0028] When the historical economic benefit is between the third preset economic benefit and the fourth preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the fourth preset compensation coefficient.

[0029] In some embodiments of the present application, the basic information of each protection area is evaluated based on the preset layout evaluation index to obtain multiple reference evaluation values of each protection area, including:

[0030] A number of preset layout evaluation indexes and the evaluation weight coefficients of the preset layout evaluation indexes are preset in advance;

[0031] The basic information of each protection area is obtained, and the basic information is associated and analyzed with the preset layout evaluation index to obtain the degree of association, and the basic information with the degree of association greater than the preset association degree threshold is screened out. The screened basic information is set as the relevant basic information corresponding to the preset layout evaluation index, and the weight coefficient of the relevant basic information is set according to the degree of association;

[0032] Compare each relevant basic information with the corresponding standard basic information in the corresponding preset layout evaluation index to obtain the deviation degree, and generate the reference evaluation value of the corresponding relevant basic information in the corresponding preset layout evaluation index according to the deviation degree;

[0033] Set the evaluation order according to the evaluation weight coefficient of the preset layout evaluation index and the weight coefficient of the relevant basic information, and generate the reference evaluation value of each basic information of each protection area according to the evaluation order.

[0034] In some embodiments of the present application, classify the protection areas according to the reference evaluation values to obtain multiple categories of protection areas, including:

[0035] Generate the comprehensive reference evaluation value of the corresponding preset layout evaluation index of the corresponding protection area by using the reference evaluation values of multiple relevant basic information of the same preset layout evaluation index of the same protection area and the weight coefficients of the corresponding relevant basic information;

[0036] Take the difference between the comprehensive reference evaluation values of the same preset layout evaluation index of different protection areas to obtain the difference value of the comprehensive reference evaluation values of the same preset layout evaluation index of different protection areas;

[0037] Generate a comprehensive evaluation difference by using the difference value of the comprehensive reference evaluation values of all preset layout evaluation indexes of different protection areas and the evaluation weight coefficient of the corresponding preset layout evaluation index, and set the similarity degree between different protection areas according to the comprehensive evaluation difference;

[0038] Classify the protection areas with a similarity degree greater than the preset similarity degree threshold into the same category to obtain multiple categories of protection areas.

[0039] In some embodiments of the present application, determine several preferred layout strategies for each category of protection areas, including:

[0040] Sort the historical layout strategies and the historical application evaluation values of the historical layout strategies of the protection areas in the same category to obtain the historical layout strategy sequence of the protection areas in the same category;

[0041] Compare the historical application evaluation values of the historical layout strategies in the historical layout strategy sequence with the preset application evaluation value threshold, and eliminate the historical application strategies with historical application evaluation values less than the preset application evaluation value threshold;

[0042] Set the remaining historical layout strategies in the historical layout strategy sequence as the preferred layout strategies.

[0043] In some embodiments of the present application, construct several protection area layout simulation models according to the several preferred layout strategies of the corresponding category and the basic information of the protection area to be arranged, including:

[0044] Obtain the basic information of the protection area to be arranged, determine multiple actual reference evaluation values of the protection area to be arranged, and generate the actual comprehensive reference evaluation value of the protection area to be arranged according to the multiple actual reference evaluation values;

[0045] Set the comprehensive reference evaluation value interval corresponding to the same category of protection areas according to the comprehensive reference evaluation values of multiple protection areas in the same category, compare the actual comprehensive reference evaluation value with the comprehensive reference evaluation value intervals of all categories, obtain the comprehensive reference evaluation value interval where the actual comprehensive reference evaluation value is located, and determine the corresponding category of the protection area to be arranged;

[0046] Obtain several preferred layout strategies corresponding to the category of the protection area to be arranged, and determine the layout information in the corresponding preferred layout strategy based on each preferred layout strategy. The layout information includes the position information and structural information of the fire extinguishing system;

[0047] Determine the scene information of the protection area to be arranged according to the basic information of the protection area to be arranged. The scene information includes the preset panoramic map of the protection area to be arranged and the actual operating conditions;

[0048] Fuse and model the layout information of each preferred layout strategy and the scene information of the protection area to be arranged to obtain the protection area layout simulation model of the protection area to be arranged and each preferred layout strategy.

[0049] In some embodiments of the present application, simulate multiple predicted fire types based on each protection area layout simulation model, including:

[0050] Obtain the historical fire logs of the protection area to be arranged and all the protection areas in the corresponding category of the protection area to be arranged, and extract the corresponding fire causes and fire impact degrees according to the historical fire logs;

[0051] Classify the fire causes in all the historical fire logs to obtain multiple predicted fire types of the protection area to be arranged and the occurrence probability of each predicted fire type, and generate the importance degree of the corresponding predicted fire type according to the fire impact degrees of multiple fire causes of the same predicted fire type and the occurrence probability of the corresponding predicted fire type;

[0052] Set the first simulation sequence M1 of the protection area layout simulation model according to the arrangement order of the preferred layout strategy in the historical layout strategy sequence, M1(m11, m12,..., m1j), where m1s is the s-th protection area layout simulation model and j is the total number of protection area layout simulation models;

[0053] Set the second simulation sequence M2 of the predicted fire types according to the importance degree of the predicted fire types, M2(m21, m22,..., m2g), where m2v is the v-th predicted fire type and g is the total number of predicted fire types;

[0054] Extract the simulation model for the layout of the first protection area based on the first simulation sequence M1. Obtain the dynamic scenario information corresponding to the predicted fire types in sequence according to the arrangement order of the predicted fire types in the second simulation sequence M2, and input them into the simulation model for the layout of the first protection area in sequence to obtain the fire simulation results of the simulation model for the layout of the first protection area for different predicted fire types;

[0055] Obtain the fire simulation results of the corresponding protection area layout simulation models for different predicted fire types in sequence according to the arrangement order in the first simulation sequence M1.

[0056] In some embodiments of the present application, the optimal layout strategy for the protection area to be arranged is obtained according to the simulation application evaluation value, including:

[0057] The fire simulation results include the predicted application characteristics of the corresponding protection area layout simulation model for different predicted fire types. The predicted application characteristics include predicted time characteristics, predicted temperature change characteristics, predicted coverage, and predicted economic benefits;

[0058] Among them, the predicted time characteristics include the predicted discovery time node, the predicted determination time node, and the historical fire extinguishing duration. The predicted temperature change characteristics include the predicted temperature change rate and the predicted temperature change amount at multiple preset monitoring points;

[0059] Generate the predicted application evaluation value of the protection area layout simulation model for the corresponding predicted fire type based on the predicted application characteristics;

[0060] Generate the simulation application evaluation value of the corresponding protection area layout simulation model according to the predicted application evaluation values of the protection area layout simulation model for all predicted fire types and the importance of the corresponding predicted fire types;

[0061] The calculation formula of the simulation application evaluation value is:

[0062]

[0063] Among them, Y0 is the simulation application evaluation value, Y′v is the predicted application evaluation value of the vth predicted fire type, and pv is the importance of the vth predicted fire type.

[0064] Set the protection area layout simulation model with the largest simulation application evaluation value as the optimal protection area layout simulation model, and set the preferred layout strategy corresponding to the optimal protection area layout simulation model as the optimal layout strategy for the protection area to be arranged.

[0065] Compared with the prior art, a method for optimizing the layout of an electrochemical energy storage liquid nitrogen fire extinguishing system according to an embodiment of the present application has the beneficial effects that:

[0066] By obtaining the basic information of the protected area, the historical layout strategy, and the historical application evaluation value of the historical layout strategy, determining multiple categories of protected areas and several preferred layout strategies, determining the category to which the protected area to be arranged belongs, and constructing multiple protected area layout simulation models based on the preferred layout strategy and basic information of the corresponding category, simulating multiple predicted fire types, and obtaining the simulation application evaluation value, so as to determine the optimal layout strategy of the protected area to be arranged, improve the fire extinguishing efficiency of the fire extinguishing system, and minimize economic losses. Description of the Drawings

[0067] Figure 1 It is a schematic flowchart of an optimization layout method for an electrochemical energy storage liquid nitrogen fire extinguishing system in a preferred embodiment of the embodiment of the present application. Detailed Embodiments

[0068] The following will further describe in detail the specific embodiments of the present application in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0069] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0070] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0071] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0072] As Figure 1 shown, an optimization layout method for an electrochemical energy storage liquid nitrogen fire extinguishing system in a preferred embodiment of the embodiment of the present application includes:

[0073] Step S101: Obtain historical layout logs, where the historical layout logs include the basic information of the protection area, the historical layout strategies of the fire extinguishing system, and the historical application information of the historical layout strategies, and generate historical application evaluation values for the corresponding historical layout strategies according to the historical application information;

[0074] Step S102: Evaluate the basic information of each protection area based on preset layout evaluation indicators, obtain multiple reference evaluation values for each protection area, classify the protection areas according to the reference evaluation values, and obtain protection areas of multiple categories;

[0075] Step S103: Analyze the historical layout strategies and historical application evaluation values of the protection areas of the same category, and determine several preferred layout strategies for the protection areas of each category;

[0076] Step S104: Obtain the basic information of the protection area to be arranged and generate actual reference evaluation values, determine the category of the protection area to be arranged according to the actual reference evaluation values, and construct several protection area layout simulation models according to several preferred layout strategies of the corresponding category and the basic information of the protection area to be arranged;

[0077] Step S105: Based on each protection area layout simulation model, perform simulation on multiple predicted fire types, obtain multiple fire simulation results and generate simulation application evaluation values, and obtain the optimal layout strategy of the protection area to be arranged according to the simulation application evaluation values.

[0078] In this embodiment, the basic information includes the structural characteristics, location, area, building type, space pressure resistance, environmental temperature, etc. of the protection area. The preset layout evaluation indicators refer to the indicators of the basic information of the protection area that need to be considered when setting the layout strategy according to expert experience analysis, that is, they are set according to the strong correlation between the basic information and the set historical layout strategy.

[0079] In this embodiment, by obtaining the basic information of the protection area, the historical layout strategy, and the historical application evaluation value of the historical layout strategy, multiple categories of protection areas and several preferred layout strategies are determined, the category to which the protection area to be arranged belongs is determined, and multiple protection area layout simulation models are constructed according to the preferred layout strategies of the corresponding category and the basic information, and simulation is performed on multiple predicted fire types to obtain simulation application evaluation values, so as to determine the optimal layout strategy of the protection area to be arranged, improve the fire extinguishing efficiency of the fire extinguishing system, and minimize economic losses.

[0080] In some embodiments of the present application, generating the historical application evaluation value for the corresponding historical layout strategy according to the historical application information includes:

[0081] Obtain the historical application information of the historical deployment strategy in each historical deployment log, where the historical application information includes the historical time characteristics, historical temperature change characteristics, historical coverage, and historical economic benefits corresponding to the historical deployment strategy;

[0082] Among them, the historical time characteristics include the historical discovery time node, historical determination time node, and historical fire extinguishing duration, and the historical temperature change characteristics include the historical temperature change rate and historical temperature change amount at multiple preset monitoring points;

[0083] Take the difference between the historical discovery time node in the historical time characteristics and the standard occurrence time node in the corresponding historical deployment log to obtain the historical discovery time difference, and take the difference between the historical determination time node in the historical time characteristics and the preset standard determination time node to obtain the historical determination time difference;

[0084] Generate the first application sub-evaluation value corresponding to the historical deployment strategy according to the historical discovery time difference, historical determination time difference, and historical fire extinguishing duration;

[0085] Generate the second application sub-evaluation value corresponding to the historical deployment strategy based on the historical temperature change rate and historical temperature change amount at multiple preset monitoring points in the historical temperature change characteristics;

[0086] Generate the third application sub-evaluation value corresponding to the historical deployment strategy based on the historical coverage;

[0087] Set the compensation coefficient corresponding to the historical deployment strategy based on the historical economic benefits;

[0088] Generate the historical application evaluation value corresponding to the historical deployment strategy according to the first application sub-evaluation value, second application sub-evaluation value, third application sub-evaluation value, and compensation coefficient of each historical deployment strategy;

[0089] The calculation formula of the historical application evaluation value is:

[0090]

[0091] Among them, Y is the historical application evaluation value, y0 is the compensation coefficient, z1 is the first application evaluation conversion coefficient, t1 is the historical fire extinguishing duration, t2 is the historical discovery time difference, t3 is the historical determination time difference, a1 is the weight coefficient of the historical discovery time difference, a2 is the weight coefficient of the historical determination time difference, z2 is the second application evaluation conversion coefficient, n is the total number of preset monitoring points, w1i is the historical temperature change amount at the i-th preset monitoring point, w2i is the historical temperature change rate at the i-th preset monitoring point, b1 is the weight coefficient of the historical temperature change amount, b2 is the weight coefficient of the historical temperature change rate, z3 is the third application evaluation conversion coefficient, and F is the historical coverage.

[0092] In this embodiment, the historical discovery time node refers to the time node when it is discovered that the electrochemical energy storage system has thermal runaway or other conditions that may cause a fire. The historical determination time node refers to the time node when the main cause and main location of the fire caused by the electrochemical energy storage system are determined. The historical temperature change characteristic refers to the temperature change values and temperature change rates at multiple preset monitoring points after the fire occurs. The historical coverage degree refers to the integrity of the coverage of the fire location by the fire extinguishing system after the historical layout strategy. The historical economic cost refers to the ratio between the total economic value of the electrochemical energy storage system remaining after the fire retained by the fire extinguishing system corresponding to the historical layout strategy and the economic cost generated during the fire extinguishing process.

[0093] In this embodiment, when the historical discovery time difference, historical determination time difference, and historical fire extinguishing duration are all smaller, the generated corresponding first application sub-evaluation value is larger, and vice versa. The first application evaluation conversion coefficient is set in advance to convert the historical discovery time difference, historical determination time difference, and historical fire extinguishing duration into the corresponding first application sub-evaluation value. When the temperature at each preset monitoring point is converted from the abnormal temperature range to the normal temperature range and the historical temperature change value is larger and the historical temperature change rate is faster, the generated corresponding second application sub-evaluation value is larger. The first application evaluation conversion coefficient is set in advance to convert the historical temperature change values and historical temperature change rates of all preset monitoring points into the corresponding second application sub-evaluation values. When the historical coverage degree is larger, the corresponding third application sub-evaluation value is larger. The third application conversion coefficient is set in advance to convert the historical coverage degree into the corresponding third application evaluation value.

[0094] In this embodiment, the historical application evaluation value of the corresponding historical layout strategy is calculated through the historical time characteristics, historical temperature change characteristics, historical coverage degree, and historical economic benefits of each historical layout strategy, accurately judging the historical application effect of the fire extinguishing system after the corresponding historical layout strategy in the face of a fire, laying a foundation for subsequent determination of the preferred layout strategy and the optimal layout strategy, and improving the fire extinguishing efficiency of the fire extinguishing system and the safety performance of the electrochemical energy storage system.

[0095] In some embodiments of the present application, a compensation coefficient corresponding to the historical layout strategy is set based on the historical economic benefits, including:

[0096] A first preset economic benefit, a second preset economic benefit, a third preset economic benefit, and a fourth preset economic benefit are preset in advance;

[0097] When the historical economic benefit is less than the first preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the first preset compensation coefficient;

[0098] When the historical economic benefit is between the first preset economic benefit and the second preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the second preset compensation coefficient;

[0099] When the historical economic benefit is between the second preset economic benefit and the third preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the third preset compensation coefficient;

[0100] When the historical economic benefit is between the third preset economic benefit and the fourth preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set as the fourth preset compensation coefficient.

[0101] In this embodiment, the first preset economic benefit < the second preset economic benefit < the third preset economic benefit < the fourth preset economic benefit, 0.7 < the first preset compensation coefficient < the second preset compensation coefficient < 1 < the third preset compensation coefficient < the fourth preset compensation coefficient < 1.3.

[0102] In some embodiments of the present application, based on the preset layout evaluation index, the basic information of each protection area is evaluated to obtain multiple reference evaluation values of each protection area, including:

[0103] A number of preset layout evaluation indexes and the evaluation weight coefficients of the preset layout evaluation indexes are preset;

[0104] Obtain the basic information of each protection area, perform correlation analysis on the basic information and the preset layout evaluation indexes to obtain the degree of correlation, screen out the basic information with the degree of correlation greater than the preset correlation degree threshold, set the screened basic information as the relevant basic information corresponding to the preset layout evaluation indexes, and set the weight coefficient of the relevant basic information according to the degree of correlation;

[0105] Compare each piece of relevant basic information with the corresponding standard basic information in the corresponding preset layout evaluation index to obtain the degree of deviation, and generate the reference evaluation value of the corresponding relevant basic information in the corresponding preset layout evaluation index according to the degree of deviation;

[0106] Set the evaluation order according to the evaluation weight coefficient of the preset layout evaluation index and the weight coefficient of the relevant basic information, and generate the reference evaluation value of each basic information of each protection area according to the evaluation order.

[0107] In this embodiment, the standard basic information of the preset layout evaluation index is set in advance, the degree of deviation refers to the information deviation between the standard basic information and the corresponding relevant basic information, and the degree of deviation is converted into the corresponding reference evaluation value, so as to obtain the reference evaluation value of each basic information, laying a foundation for subsequently classifying the protection areas into multiple categories according to the reference evaluation values, and improving the accuracy of the optimal layout strategy of the protection areas to be arranged subsequently.

[0108] In some embodiments of the present application, the protection areas are classified according to the reference evaluation values to obtain protection areas of multiple categories, including:

[0109] Generate the comprehensive reference evaluation value of the corresponding preset layout evaluation index of the corresponding protection area from the reference evaluation values of multiple relevant basic information of the same preset layout evaluation index of the same protection area and the weight coefficients of the corresponding relevant basic information;

[0110] Subtract the comprehensive reference evaluation values of the same preset layout evaluation index of different protection areas to obtain the difference value of the comprehensive reference evaluation values of the same preset layout evaluation index of different protection areas;

[0111] Generate a comprehensive evaluation difference from the difference values of the comprehensive reference evaluation values of all preset layout evaluation indexes of different protection areas and the evaluation weight coefficients of the corresponding preset layout evaluation indexes, and set the similarity degree between different protection areas according to the comprehensive evaluation difference;

[0112] Classify the protection areas with a similarity degree greater than the preset similarity degree threshold into the same category to obtain protection areas of multiple categories.

[0113] In this embodiment, the comprehensive evaluation difference value is obtained by multiplying the difference value of the comprehensive reference evaluation values of all preset layout evaluation indexes by the evaluation weight coefficient of the corresponding preset layout evaluation index. When the comprehensive evaluation difference value is larger, it indicates that the similarity degree between different protection areas is smaller; when the comprehensive evaluation difference value is smaller, it indicates that the similarity degree between different protection areas is larger.

[0114] In this embodiment, multiple protection areas are classified into multiple categories according to the similarity degree between different protection areas, which lays a foundation for subsequently determining the preferred layout strategies for different categories of protection areas and improves the application effect of the layout strategies of the protection areas to be arranged and the fire extinguishing efficiency.

[0115] In some embodiments of the present application, determine several preferred layout strategies for each category of protection areas, including:

[0116] Sort the historical layout strategies of the protection areas of the same category and the historical application evaluation values of the historical layout strategies to obtain the historical layout strategy sequence of the protection areas of the same category;

[0117] Compare the historical application evaluation values of the historical layout strategies in the historical layout strategy sequence with the preset application evaluation value threshold, and eliminate the historical application strategies with historical application evaluation values less than the preset application evaluation value threshold;

[0118] Set the remaining historical layout strategies in the historical layout strategy sequence as the preferred layout strategies.

[0119] In some embodiments of the present application, a number of protection area layout simulation models are constructed according to several preferred layout strategies for corresponding categories and the basic information of the protection area to be laid out, including:

[0120] Obtain the basic information of the protection area to be laid out, determine multiple actual reference evaluation values of the protection area to be laid out, and generate an actual comprehensive reference evaluation value of the protection area to be laid out according to the multiple actual reference evaluation values;

[0121] Set a comprehensive reference evaluation value interval for the corresponding category according to the comprehensive reference evaluation values of multiple protection areas in the same category, compare the actual comprehensive reference evaluation value with the comprehensive reference evaluation value intervals of all categories, obtain the comprehensive reference evaluation value interval where the actual comprehensive reference evaluation value is located, and determine the corresponding category of the protection area to be laid out;

[0122] Obtain several preferred layout strategies for the corresponding category of the protection area to be laid out, and determine the layout information in the corresponding preferred layout strategy based on each preferred layout strategy. The layout information includes the location information and structural information of the fire extinguishing system;

[0123] Determine the scenario information of the protection area to be laid out according to the basic information of the protection area to be laid out. The scenario information includes the preset panoramic map of the protection area to be laid out and the actual operating conditions;

[0124] Fuse the layout information of each preferred layout strategy and the scenario information of the protection area to be laid out to obtain the protection area layout simulation model of the protection area to be laid out and each preferred layout strategy.

[0125] In this embodiment, the preset panoramic map includes the location information and connection information of each device in the protection area to be laid out. The data-driven and physical mechanism modeling method of the actual operating conditions of each device is used to obtain the simulation model of the protection area to be laid out, and the layout information of each preferred layout strategy is fused to obtain the protection area layout simulation model of the protection area to be laid out and each preferred layout strategy.

[0126] In some embodiments of the present application, simulate multiple predicted fire types based on each protection area layout simulation model, including:

[0127] Obtain the historical fire logs of the protection area to be laid out and all protection areas in the corresponding category of the protection area to be laid out, and extract the corresponding fire causes and fire impact degrees according to the historical fire logs;

[0128] Classify the fire causes in all historical fire logs to obtain multiple predicted fire types of the protection area to be laid out and the occurrence probability of each predicted fire type, and generate the importance degree of the corresponding predicted fire type according to the fire impact degrees of multiple fire causes of the same predicted fire type and the occurrence probability of the corresponding predicted fire type;

[0129] Set the first simulation sequence M1 of the protected area layout simulation model according to the arrangement order in the historical layout strategy sequence according to the preferred layout strategy, M1(m11, m12,..., m1j), where m1s is the s-th protected area layout simulation model and j is the total number of protected area layout simulation models;

[0130] Set the second simulation sequence M2 of the predicted fire types according to the importance degree of the predicted fire types, M2(m21, m22,..., m2g), where m2v is the v-th predicted fire type and g is the total number of predicted fire types;

[0131] Extract the first protected area layout simulation model based on the first simulation sequence M1, and sequentially obtain the dynamic scene information of the corresponding predicted fire types according to the arrangement order of the predicted fire types in the second simulation sequence M2, and input them into the first protected area layout simulation model in sequence to obtain the fire simulation results of the first protected area layout simulation model for different predicted fire types;

[0132] Sequentially obtain the fire simulation results of the corresponding protected area layout simulation models for different predicted fire types according to the arrangement order in the first simulation sequence M1.

[0133] In this embodiment, the dynamic scene information refers to dynamic information such as the fire source area, the fire spread trend, the fire spread speed, and the fire size after the corresponding predicted fire type occurs.

[0134] In this embodiment, sequentially obtain the fire simulation results of the protected area layout simulation models for different predicted fire types. After all the protected area layout simulation models perform simulation for different predicted fire types, determine the optimal layout strategy, improve the analysis efficiency of the optimal layout strategy and reduce the data processing volume, ensure the accuracy and effectiveness of the optimal layout strategy, and improve the fire extinguishing efficiency of the fire extinguishing system.

[0135] In some embodiments of the present application, obtain the optimal layout strategy of the protected area to be arranged according to the simulation application evaluation value, including:

[0136] The fire simulation results include the predicted application characteristics of the corresponding protected area layout simulation model for different predicted fire types, and the predicted application characteristics include predicted time characteristics, predicted temperature change characteristics, predicted coverage, and predicted economic benefits;

[0137] Among them, the predicted time characteristics include the predicted discovery time node, the predicted determination time node, and the historical fire extinguishing duration, and the predicted temperature change characteristics include the predicted temperature change rate and the predicted temperature change amount at multiple preset monitoring points;

[0138] Generate a simulation model for the layout of protection areas based on the characteristics of prediction applications, and obtain the prediction application evaluation value for the corresponding predicted fire type.

[0139] Generate the simulation application evaluation value of the corresponding protection area layout simulation model according to the prediction application evaluation values of the protection area layout simulation model for all predicted fire types and the importance degree of the corresponding predicted fire types.

[0140] The calculation formula of the simulation application evaluation value is as follows:

[0141]

[0142] Wherein, Y0 is the simulation application evaluation value, Y′v is the prediction application evaluation value of the v-th predicted fire type, and pv is the importance degree of the v-th predicted fire type.

[0143] Set the protection area layout simulation model with the largest simulation application evaluation value as the optimal protection area layout simulation model, and set the preferred layout strategy corresponding to the optimal protection area layout simulation model as the optimal layout strategy of the protection area to be arranged.

[0144] In this embodiment, the corresponding prediction application evaluation value is generated according to the above calculation method of the historical application evaluation value, and the simulation application evaluation value of each protection area layout simulation model for all fire types is obtained, so as to screen out the optimal layout strategy of the protection area to be arranged, improve the fire extinguishing efficiency of the fire extinguishing system, and minimize the economic loss of the protection area to be arranged.

[0145] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present application.

Claims

1. An optimization layout method for an electrochemical energy storage liquid nitrogen fire extinguishing system, characterized in that: include: Acquire a historical deployment log, wherein the historical deployment log includes basic information of the protection area, a historical deployment strategy of the fire extinguishing system, and historical application information of the historical deployment strategy, and generate a historical application evaluation value of the corresponding historical deployment strategy according to the historical application information; Based on the preset layout evaluation index, the basic information of each protection zone is evaluated to obtain multiple reference evaluation values ​​of each protection zone, and the protection zones are classified according to the reference evaluation values ​​to obtain multiple categories of protection zones; Analyze the historical layout strategies and historical application evaluation values ​​of the same category of protection zones to determine several preferred layout strategies for each category of protection zones; Obtaining basic information of the protection area to be arranged and generating an actual reference evaluation value, determining the category of the protection area to be arranged according to the actual reference evaluation value, and constructing several protection area arrangement simulation models according to several preferred arrangement strategies of the corresponding category and the basic information of the protection area to be arranged; Based on the simulation model of each protection zone layout, multiple predicted fire types are simulated to obtain multiple fire simulation results and generate simulation application evaluation values. According to the simulation application evaluation values, the optimal layout strategy for the protection zone to be arranged is obtained.

2. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 1, characterized in that: Generate a historical application evaluation value of the corresponding historical deployment strategy according to the historical application information, including: Acquire historical application information of the historical layout strategy in each historical layout log, wherein the historical application information includes historical time characteristics, historical temperature change characteristics, historical coverage degree, and historical economic benefits of the corresponding historical layout strategy; The historical time characteristics include the historical discovery time node, the historical determination time node and the historical fire extinguishing duration, and the historical temperature change characteristics include the historical temperature change rate and the historical temperature change value at multiple preset monitoring points; Based on the difference between the historical discovery time node in the historical time feature and the standard occurrence time node in the corresponding historical layout log, the historical discovery time difference is obtained, and the historical determination time node in the historical time feature is subtracted from the preset standard determination time node to obtain the historical determination time difference; Generate a first application sub-evaluation value of the corresponding historical deployment strategy according to the historical discovery time difference, the historical determination time difference and the historical fire extinguishing duration; Generate a second application sub-evaluation value corresponding to the historical layout strategy based on the historical temperature change rate and the historical temperature change value at multiple preset monitoring points in the historical temperature change characteristics; Generating a third application sub-evaluation value corresponding to the historical deployment strategy based on the historical coverage degree; Set compensation coefficients corresponding to historical layout strategies based on historical economic benefits; Generate a historical application evaluation value corresponding to the historical deployment strategy according to the first application sub-evaluation value, the second application sub-evaluation value, the third application sub-evaluation value and the compensation coefficient of each historical deployment strategy; The calculation formula of the historical application evaluation value is: Among them, Y is the historical application evaluation value, y0 is the compensation coefficient, z1 is the first application evaluation conversion coefficient, t1 is the historical fire extinguishing time, t2 is the historical discovery time difference, t3 is the historical determination time difference, a1 is the weight coefficient of the historical discovery time difference, a2 is the weight coefficient of the historical determination time difference, z2 is the second application evaluation conversion coefficient, n is the total number of preset monitoring points, w1i is the historical temperature change value at the i-th preset monitoring point, w2i is the historical temperature change rate at the i-th preset monitoring point, b1 is the weight coefficient of the historical temperature change value, b2 is the weight coefficient of the historical temperature change rate, z3 is the third application evaluation conversion coefficient, and F is the historical coverage degree.

3. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 2, characterized in that: The compensation coefficient corresponding to the historical layout strategy is set based on the historical economic benefits, including: presetting a first preset economic benefit, a second preset economic benefit, a third preset economic benefit and a fourth preset economic benefit; When the historical economic benefit is less than the first preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set to the first preset compensation coefficient; When the historical economic benefit is between the first preset economic benefit and the second preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set to the second preset compensation coefficient; When the historical economic benefit is between the second preset economic benefit and the third preset economic benefit, the compensation coefficient of the corresponding historical layout strategy is set to the third preset compensation coefficient; When the historical economic benefit is between the third preset economic benefit and the fourth preset economic benefit, the compensation coefficient corresponding to the historical layout strategy is set to the fourth preset compensation coefficient.

4. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 3, characterized in that: The basic information of each protection zone is evaluated based on the preset layout evaluation index to obtain multiple reference evaluation values ​​for each protection zone, including: Presetting a number of preset layout evaluation indicators and evaluation weight coefficients of the preset layout evaluation indicators; Obtain basic information of each protection zone, perform correlation analysis on the basic information and preset layout evaluation indicators, obtain the correlation degree and filter out basic information whose correlation degree is greater than a preset correlation degree threshold, set the filtered basic information as relevant basic information corresponding to the preset layout evaluation indicators, and set a weight coefficient of the relevant basic information according to the correlation degree; Comparing each relevant basic information with the corresponding standard basic information in the corresponding preset layout evaluation index to obtain a degree of deviation, and generating a reference evaluation value of the corresponding relevant basic information in the corresponding preset layout evaluation index according to the degree of deviation; The evaluation order is set according to the evaluation weight coefficients of the preset layout evaluation indicators and the weight coefficients of the relevant basic information, and the reference evaluation value of each basic information of each protection area is generated according to the evaluation order.

5. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 4, characterized in that: The protection areas are classified according to the reference evaluation values ​​to obtain multiple categories of protection areas, including: Generate a comprehensive reference evaluation value of the corresponding preset arrangement evaluation index of the corresponding protection zone by using the reference evaluation values ​​of multiple relevant basic information of the same preset arrangement evaluation index of the same protection zone and the weight coefficient of the corresponding relevant basic information; Subtracting the comprehensive reference evaluation values ​​of the same preset arrangement evaluation index of different protection zones to obtain the difference of the comprehensive reference evaluation values ​​of the same preset arrangement evaluation index of different protection zones; The comprehensive evaluation difference is generated by the difference of the comprehensive reference evaluation values ​​of all preset layout evaluation indicators of different protection areas and the evaluation weight coefficient of the corresponding preset layout evaluation indicators, and the similarity between different protection areas is set according to the comprehensive evaluation difference; The protection areas with similarity greater than a preset similarity threshold are classified into the same category, thereby obtaining protection areas of multiple categories.

6. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 5, characterized in that: Determine several preferred layout strategies for each category of protection zone, including: Sorting the historical layout strategies of the same category of protection zones and the historical application evaluation values ​​of the historical layout strategies to obtain a historical layout strategy sequence of the same category of protection zones; Compare the historical application evaluation values ​​of the historical deployment strategies in the historical deployment strategy sequence with the preset application evaluation value threshold, and remove the historical application strategies whose historical application evaluation values ​​are less than the preset application evaluation value threshold; The remaining historical placement strategies in the historical placement strategy sequence are set as preferred placement strategies.

7. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 6, characterized in that: According to several preferred layout strategies of corresponding categories and basic information of the protection areas to be arranged, several protection area layout simulation models are constructed, including: Obtaining basic information of the protection zone to be arranged, determining multiple actual reference evaluation values ​​of the protection zone to be arranged, and generating an actual comprehensive reference evaluation value of the protection zone to be arranged according to the multiple actual reference evaluation values; According to the comprehensive reference evaluation values ​​of multiple protection zones of the same category, the comprehensive reference evaluation value interval of the corresponding category is set, and the actual comprehensive reference evaluation value is compared with the comprehensive reference evaluation value interval of all categories to obtain the comprehensive reference evaluation value interval in which the actual comprehensive reference evaluation value is located and determine the corresponding category of the protection zone to be arranged; Acquire several preferred layout strategies of corresponding categories of the protection area to be arranged, and determine the layout information in the corresponding preferred layout strategy based on each preferred layout strategy, wherein the layout information includes the location information and structure information of the fire extinguishing system; Determine scene information of the protection area to be arranged according to the basic information of the protection area to be arranged, wherein the scene information includes a preset panoramic map of the protection area to be arranged and actual operating conditions; The layout information of each preferred layout strategy and the scene information of the protection area to be arranged are fused and modeled to obtain a layout simulation model of the protection area to be arranged and the protection area of ​​each preferred layout strategy.

8. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 7, characterized in that: Multiple predicted fire types are simulated based on the simulation model of each protection zone layout, including: Obtain historical fire logs of the protection zone to be arranged and all protection zones in the corresponding category of the protection zone to be arranged, and extract corresponding fire causes and fire impacts according to the historical fire logs; Classify the fire causes in all historical fire logs to obtain multiple predicted fire types and the probability of occurrence of each predicted fire type in the protection area to be arranged, and generate the importance of the corresponding predicted fire type according to the fire impact of multiple fire causes of the same predicted fire type and the probability of occurrence of the corresponding predicted fire type; According to the arrangement order of the preferred arrangement strategies in the historical arrangement strategy sequence, a first simulation sequence M1, M1(m11, m12, ..., m1j) of the protection zone arrangement simulation model is set, wherein m1s is the sth protection zone arrangement simulation model, and j is the total number of protection zone arrangement simulation models; According to the importance of the predicted fire types, a second simulation sequence M2, M2(m21, m22, ..., m2g) of the predicted fire types is set, where m2v is the vth predicted fire type and g is the total number of predicted fire types; The first protection zone layout simulation model is extracted based on the first simulation sequence M1, and the dynamic scene information corresponding to the predicted fire types is sequentially obtained according to the arrangement order of the predicted fire types in the second simulation sequence M2, and is sequentially input into the first protection zone layout simulation model to obtain the fire simulation results of the first protection zone layout simulation model for different predicted fire types; According to the arrangement order in the first simulation sequence M1, the fire simulation results of the corresponding protection area layout simulation model for different predicted fire types are obtained in sequence.

9. The method for optimizing the layout of the electrochemical energy storage liquid nitrogen fire extinguishing system according to claim 8, characterized in that: The optimal layout strategy of the protection area to be arranged is obtained according to the simulation application evaluation value, including: The fire simulation results include prediction application characteristics of the corresponding protection zone layout simulation model for different predicted fire types, and the prediction application characteristics include prediction time characteristics, prediction temperature change characteristics, prediction coverage degree and prediction economic benefits; The predicted time features include the predicted discovery time node, the predicted determination time node and the historical fire extinguishing duration, and the predicted temperature change features include the predicted temperature change rate and the predicted temperature change value at multiple preset monitoring points; Generate a prediction application evaluation value of the protection zone layout simulation model for the corresponding predicted fire type based on the prediction application characteristics; Generate a simulation application evaluation value of the corresponding protection zone layout simulation model according to the prediction application evaluation value of the protection zone layout simulation model for all predicted fire types and the importance of the corresponding predicted fire type; The calculation formula of the simulation application evaluation value is: Among them, Y0 is the simulation application evaluation value, Y′v is the prediction application evaluation value of the vth predicted fire type, and pv is the importance of the vth predicted fire type. The protection zone layout simulation model with the largest simulation application evaluation value is set as the optimal protection zone layout simulation model, and the preferred layout strategy corresponding to the optimal protection zone layout simulation model is set as the optimal layout strategy for the protection zone to be arranged.

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