Method, apparatus, server, and storage medium for determining extinguishing method in smoldering test

Abstract

This application is applicable to the field of forest fire protection technology, and provides a method, device, server and storage medium for determining a fire extinguishing method for a smoldering test, including igniting the combustible material in the burner and making it in a smoldering state, controlling the sprinkler head to spray and extinguish the fire according to the preset spraying parameters; recording the actual temperature and actual humidity of the combustible material in real time; detecting the target gas components and actual gas concentrations generated during the smoldering process and the spray fire extinguishing process of the combustible material in real time; when the actual temperature is less than or equal to the preset temperature, controlling the sprinkler head to stop spraying and extinguishing the fire, and drawing a temperature change curve, a humidity change curve, and a gas concentration change curve; adjusting the preset spraying parameters, repeating the smoldering test, and obtaining the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spraying parameter; determining the target fire extinguishing method according to the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spraying parameter.

Description

Technical Field

[0001] This application belongs to the technical field of forest fire protection, and particularly relates to a method, device, server, and storage medium for determining the fire extinguishing method in a smoldering test. Background Art

[0002] Forest fires are uncontrolled forest combustion phenomena that mostly occur in open spaces. Classified according to the manifestation form of forest fires, they can be divided into two major categories: open fire and smoldering forest fires. Among them, smoldering is a low-temperature, flameless, and slow combustion phenomenon that mainly occurs and spreads in the humus layer and peat layer below the ground surface, with the temperature generally between 300 and 600 °C.

[0003] Smoldering forest fires are one of the combustion phenomena with the largest global impact range and the longest duration. They have relatively strong concealment, and can transform into forest fire types such as surface fire in dry and windy conditions. Once a smoldering forest fire transforms into a surface fire, the fire temperature and heat release rate will increase exponentially, and the fire spread speed will undergo a magnitude mutation, resulting in more intense destructiveness. Therefore, it is urgent to systematically carry out research on extinguishing smoldering forest fires to prevent their reignition. Summary of the Invention

[0004] The embodiments of this application provide a method, device, server, and storage medium for determining the fire extinguishing method in a smoldering test, which can provide a scientific basis and technical support for the effective extinguishment of forest smoldering fires.

[0005] The first aspect of the embodiments of this application provides a method for determining the fire extinguishing method in a smoldering test. The fire extinguishing method is based on a fire extinguishing system for extinguishing fires. The fire extinguishing system includes a spray fire extinguishing system. The method includes:

[0006] Ignite the combustibles in the burner and make it in a smoldering state, and control the spray head to spray and extinguish the combustibles in the smoldering process according to preset spray parameters;

[0007] Record the actual temperature and actual humidity of the combustibles in real time;

[0008] Detect the target gas components generated by the combustibles during the smoldering process and the spray fire extinguishing process in real time, as well as the corresponding actual gas concentrations of the target gas components;

[0009] When the actual temperature is greater than the preset temperature, control the spray head to continue spraying and extinguishing; and when the actual temperature is less than or equal to the preset temperature, control the spray head to stop spraying and extinguishing, and draw a temperature change curve of the actual temperature changing with time, a humidity change curve of the actual humidity changing with time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas component changing with time;

[0010] Adjust the preset sprinkler parameters, repeat the smoldering test, and obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset sprinkler parameter;

[0011] Determine the target fire extinguishing method based on the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset sprinkler parameter.

[0012] In some embodiments, determining the target fire extinguishing method based on the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset sprinkler parameter includes:

[0013] Based on each temperature change curve, determine the temperature change amount of the actual temperature under each preset sprinkler parameter and the sprinkler duration when reaching the preset temperature;

[0014] Based on each humidity change curve, determine the humidity change amount of the actual humidity under each preset sprinkler parameter;

[0015] Based on each gas concentration change curve, determine the gas concentration change amount during the smoldering process of the combustible under each preset sprinkler parameter;

[0016] Based on the temperature change amount, sprinkler duration, humidity change amount, and gas concentration change amount under each preset sprinkler parameter, determine the target fire extinguishing method.

[0017] In some embodiments, the preset sprinkler parameters include sprinkler flow rate, fire extinguishing agent density, and sprinkler angle. Determining the target fire extinguishing method includes:

[0018] Obtain the combustion heat information of the combustible, and determine the combined information of the sprinkler flow rate, fire extinguishing agent density, and sprinkler angle based on the combustion heat information, temperature change amount, and sprinkler duration;

[0019] Screen the combined information according to the temperature change amount, humidity change amount, and gas concentration change amount to obtain the target combined information, and determine the sprinkler flow rate, fire extinguishing agent density, and sprinkler angle in the target combined information as the target fire extinguishing method.

[0020] In some embodiments, screening the combined information according to the temperature change amount, humidity change amount, and gas concentration change amount to obtain the target combined information includes:

[0021] Determine the combined information in which the temperature change amount meets the preset temperature condition, the humidity change amount meets the preset humidity condition, and the gas concentration change amount meets the preset concentration condition as the target combined information.

[0022] In some embodiments, the method further includes:

[0023] Adjust the type of fire extinguishing agent sprayed by the sprinkler head, repeat the smoldering test, and determine the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent;

[0024] Determine the target fire extinguishing agent based on the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent, and adjust the target fire extinguishing method according to the target fire extinguishing agent.

[0025] In some embodiments, the method further includes:

[0026] Adjust the physical parameters of the combustible, repeat the smoldering test, and determine the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent under each preset sprinkler parameter at each physical parameter;

[0027] Determine the target fire extinguishing method corresponding to each physical parameter according to the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent under each preset sprinkler parameter at each physical parameter.

[0028] In some embodiments, the method further includes:

[0029] Obtain the consumption of the fire extinguishing agent when the actual temperature is less than or equal to the preset temperature under each preset sprinkler parameter, and adjust the target fire extinguishing method according to the consumption of the fire extinguishing agent.

[0030] A second aspect of the embodiments of the present application provides a device for determining a fire extinguishing method. The device for determining a fire extinguishing method extinguishes fires based on a fire extinguishing system. The fire extinguishing system includes a sprinkler fire extinguishing system. The device includes:

[0031] A sprinkler activation unit, configured to ignite the combustible in the burner and make it in a smoldering state, and control the sprinkler head to spray and extinguish the combustible in the smoldering process according to preset sprinkler parameters;

[0032] A parameter recording unit, configured to record the actual temperature and actual humidity of the combustible in real time;

[0033] A gas detection unit, configured to detect the target gas components generated by the combustible during the smoldering process and the sprinkler extinguishing process in real time, and the actual gas concentration corresponding to the target gas components;

[0034] A curve drawing unit, configured to control the sprinkler head to continue spraying and extinguishing when the actual temperature is greater than the preset temperature; and configured to control the sprinkler head to stop spraying and extinguishing when the actual temperature is less than or equal to the preset temperature, and draw a temperature change curve of the actual temperature changing with time, a humidity change curve of the actual humidity changing with time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas components changing with time;

[0035] A spray adjustment unit, which is used to adjust preset spray parameters, repeat the smoldering test, and obtain temperature change curves, humidity change curves, and gas concentration change curves corresponding to the respective preset spray parameters.

[0036] A method determination unit, which is used to determine a target fire extinguishing method according to the temperature change curves, humidity change curves, and gas concentration change curves corresponding to the respective preset spray parameters.

[0037] The third aspect of the embodiments of the present application provides a server, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the method provided in the first aspect.

[0038] The fourth aspect of the embodiments of the present application provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the steps of the method provided in the first aspect.

[0039] Implementing the method, device, server, and storage medium provided by the embodiments of the present application has the following beneficial effects: By real-time monitoring and recording the changes in the temperature, humidity, and target gas components and concentrations of the combustibles under different preset spray parameters, a temperature change curve of the actual temperature changing with time, a humidity change curve of the actual humidity changing with time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas components changing with time can be obtained. These curves can accurately reflect the dynamic changes of the smoldering process and can be used as evaluation data for the fire extinguishing effects corresponding to different preset spray parameters, so as to obtain the target fire extinguishing method with the best fire extinguishing effect, providing strong technical support for the prevention and control of forest fires. Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or related technical descriptions. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0041] Figure 1 It is a flowchart for implementing a method for determining a fire extinguishing method for a smoldering test provided by an embodiment of the present application;

[0042] Figure 2 It is a schematic diagram of a smoldering forest fire extinguishing system provided by an embodiment of the present application;

[0043] Figure 3 It is a flowchart for implementing the determination of a target fire extinguishing method provided by an embodiment of the present application;

[0044] Figure 4 It is a schematic diagram of the temperature change curve when using different combinations for spray fire extinguishing provided by an embodiment of the present application;

[0045] Figure 5 It is a schematic diagram of the humidity change curve when using different combinations for spray fire extinguishing provided by an embodiment of the present application;

[0046] Figure 6 It is a schematic diagram of the gas concentration change curve when using different combinations for spray fire extinguishing provided by an embodiment of the present application;

[0047] Figure 7 It is a flowchart of the implementation for determining the target fire extinguishing method provided by an embodiment of the present application;

[0048] Figure 8 It is a flowchart of the implementation for the method of determining the fire extinguishing method in the smoldering test provided by an embodiment of the present application;

[0049] Figure 9 It is a flowchart of the implementation for determining the target fire extinguishing method provided by an embodiment of the present application;

[0050] Figure 10 It is a structural block diagram of the fire extinguishing method determination device provided by an embodiment of the present application;

[0051] Figure 11 It is a structural block diagram of the server provided by an embodiment of the present application. Detailed implementation manners

[0052] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures, technologies, etc. are presented to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0053] It should be understood that when used in the specification of the present application and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0054] As used in the specification of this application and the appended claims, the term "if" may be construed contextually as "when", "once", "in response to determining", or "in response to detecting". Similarly, the phrases "if determined" or "if [the described condition or event] is detected" may be construed contextually to mean "once determined", "in response to determining", "once [the described condition or event] is detected", or "in response to detecting [the described condition or event]".

[0055] References in the specification of this application to "one embodiment" or "some embodiments", etc., mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in some other embodiments", "in still some other embodiments", etc., that appear in different places in this specification are not necessarily all referring to the same embodiment, but rather mean "one or more but not all of the embodiments", unless otherwise specifically emphasized. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized.

[0056] To illustrate the technical solutions of this application, the following embodiments are used for illustration.

[0057] Please refer to Figure 1 , Figure 1 is a flowchart of the implementation of a method for determining an extinguishing method for a smoldering test provided by an embodiment of this application. The flowchart may include the following steps 101 to step 106.

[0058] Step 101, ignite the combustible material in the burner and make it in a smoldering state, and control the sprinkler head to spray and extinguish the combustible material in the smoldering process according to the preset spraying parameters.

[0059] The method for determining the extinguishing method of the smoldering test is based on an extinguishing system for extinguishing fires. The extinguishing system includes a sprinkler extinguishing system, as Figure 2 shown, Figure 2 is a schematic diagram of a smoldering forest fire extinguishing system provided by an embodiment of this application. The extinguishing system includes a fire extinguishing agent release system, that is, a sprinkler extinguishing system.

[0060] Among them, the above-mentioned combustible material is usually peat. Before the smoldering test, the peat sample can be screened to remove impurities therein, such as stones, branches, etc., so that the peat particles used in the test are uniform. Then, according to the test requirements, the peat is loaded into the burner, and its filling density and height are controlled, and then the heating rod inserted in the center of the peat is started so that the peat forms a stable smoldering state in the burner.

[0061] After the peat reaches a stable smoldering state, turn on the sprinkler head and control the sprinkler head to spray and extinguish the smoldering peat according to the preset sprinkling parameters.

[0062] Among them, the preset sprinkling parameters are the relevant parameters of the sprinkling set in advance. The preset sprinkling parameters may include at least one of the following: sprinkling flow rate, fire extinguishing agent density, and sprinkling angle. The sprinkling flow rate is the water injection volume per minute of the sprinkler head. Multiple sprinkling flow rates can be set. For example, 0.5 L / min, 1 L / min, 1.5 L / min, 2 L / min, 2.5 L / min, 3 L / min, etc., so as to obtain the fire extinguishing effects corresponding to different sprinkling flow rates. The sprinkling angle is the angle covered by the fire extinguishing agent ejected from the outlet of the sprinkler head. Multiple sprinkling angles can be set. For example, 60°, 90°, 120°, 150°, etc., so as to obtain the fire extinguishing effects corresponding to different sprinkling angles.

[0063] Step 102, record the actual temperature and actual humidity of the combustible in real time.

[0064] In practice, as Figure 2 shown, the temperature sensor can be implemented as a thermocouple, the humidity sensor can be implemented as a humidity detector. The fire extinguishing system may include a thermocouple array and a humidity detector. Multiple thermocouples in the thermocouple array are evenly distributed in the peat to obtain the actual temperature of the peat. The humidity detector is arranged at the top of the fire extinguishing system to obtain the actual humidity of the peat.

[0065] Step 103, detect the target gas components generated during the smoldering process and the spraying and extinguishing process of the combustible in real time, and the actual gas concentration corresponding to the target gas components.

[0066] Among them, the target gas components may include carbon dioxide, carbon monoxide, etc.

[0067] Here, a Fourier transform infrared spectrometer can be used to monitor the gas components generated during the peat combustion and extinguishing process and their concentration changes in real time, detect the target gas components and their corresponding actual gas concentrations, so as to analyze the chemical process of the combustion and extinguishing reactions.

[0068] Step 104, when the actual temperature is greater than the preset temperature, control the sprinkler head to continue spraying and extinguishing; and when the actual temperature is less than or equal to the preset temperature, control the sprinkler head to stop spraying and extinguishing. Draw a temperature change curve of the actual temperature changing with time, a humidity change curve of the actual humidity changing with time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas components changing with time.

[0069] Among them, the above preset temperature is a pre-set temperature. For example, it is 200°C. In a smoldering fire, if the actual temperature is less than or equal to the preset temperature, it indicates that the possibility of peat reignition is relatively low. If the actual temperature is greater than the preset temperature, it indicates that the possibility of peat reignition is relatively high.

[0070] When the actual temperature of the peat is greater than the preset temperature, it indicates that there is still a relatively high possibility that the peat will reignite currently, and it is necessary to control the sprinkler head to continue spraying water on the peat for fire extinguishing. When the actual temperature of the peat is less than or equal to the preset temperature, it indicates that when spraying water for fire extinguishing according to the current preset spraying parameters, the smoldering can be extinguished. The temperature change curve corresponding to the current preset spraying parameters can be drawn based on the change of the actual temperature over time, the humidity change curve corresponding to the current preset spraying parameters can be drawn based on the change of the actual humidity over time, and the gas concentration change curve corresponding to the current preset spraying parameters can be drawn based on the change of the actual gas concentration corresponding to the target gas components over time.

[0071] Step 105: Adjust the preset spraying parameters, repeat the smoldering test, and obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spraying parameter respectively.

[0072] During the test, after obtaining the above change curves of the current preset spraying parameters, the spraying parameters can be adjusted. For example, when the preset spraying parameters include multiple parameters, one of the parameters can be changed, and then the above steps are repeated to obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to the adjusted preset spraying parameters. After that, one of the preset spraying parameters can be changed in turn to obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spraying parameter respectively.

[0073] For example, the preset spray parameters include spray flow rates (0.5 L / min, 1 L / min, 1.5 L / min, 2 L / min, 3 L / min) and spray angles (120°). When conducting the experiment, the spray flow rate can be first set to 0.5 L / min and the spray angle to 120°, and then the smoldering peat can be sprayed to extinguish the fire, obtaining the temperature change curve, humidity change curve, and gas concentration change curve corresponding to the preset spray coefficient. After that, the spray flow rate can be adjusted, set to 1 L / min, and the smoldering peat can be sprayed to extinguish the fire, obtaining the temperature change curve, humidity change curve, and gas concentration change curve corresponding to the preset spray parameters of a spray flow rate of 1 L / min and a spray angle of 120°. Then, the spray flow rate can be successively adjusted to 1.5 L / min, 2 L / min, 3 L / min, with a spray angle of 120°, and the smoldering peat can be sprayed to extinguish the fire, obtaining the temperature change curve, humidity change curve, and gas concentration change curve corresponding to the preset spray parameters of spray flow rates of 1.5 L / min, 2 L / min, 3 L / min, and a spray angle of 120°. After obtaining the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spray parameter, the fire extinguishing effect corresponding to each preset spray parameter can be evaluated based on these data.

[0074] Step 106: Determine the target fire extinguishing method according to the temperature change curve, humidity change curve, and gas concentration change curve respectively corresponding to each preset spray parameter.

[0075] In practice, based on the temperature change curve, it can be determined whether the temperature of the combustible continues to be lower than the preset temperature and shows a downward trend after extinguishing the fire with the current spray parameters. If the temperature of the combustible continues to be lower than the preset temperature and shows a downward trend, then the humidity change curve can be further checked. If the humidity rises to the preset humidity (e.g., 160%), then the gas concentration change curve can be further checked. If the gas concentration shows a continuous downward trend, then the preset spray parameter can be used as the spray parameter of the target fire extinguishing method.

[0076] The method for determining the fire extinguishing method of the smoldering experiment provided in this embodiment can obtain the temperature change curve of the actual temperature changing with time, the humidity change curve of the actual humidity changing with time, and the gas concentration change curve of the actual gas concentration corresponding to the target gas component changing with time by real-time monitoring and recording the changes in the temperature, humidity, and target gas component and concentration of the peat under different preset spray parameters. These curves can accurately reflect the dynamic changes of the smoldering process and can be used as the evaluation data of the fire extinguishing effect corresponding to different preset spray parameters, so as to obtain the target fire extinguishing method with the best fire extinguishing effect, providing strong technical support for the prevention and control of forest fires.

[0077] Please refer toFigure 3 , Figure 3 is a flowchart for implementing the determination of the target fire extinguishing method provided by an embodiment of the present application. The flowchart may include the following steps 301 to 304.

[0078] Step 301: Determine the temperature change amount of the actual temperature under each preset sprinkler parameter and the sprinkler duration when the preset temperature is reached according to each temperature change curve.

[0079] The temperature change amount of the actual temperature is the difference between two actual temperatures. By subtracting the actual temperatures of two sampling points in the temperature change curve, the temperature change amount can be obtained.

[0080] During the experiment, the timing can start from when the fire extinguishing agent is sprayed from the sprinkler head, and the actual temperature of the peat can be recorded in real time. When the actual temperature reaches the preset temperature, the spraying duration of the sprinkler head is obtained.

[0081] Step 302: Determine the humidity change amount of the actual humidity under each preset sprinkler parameter according to each humidity change curve.

[0082] The humidity change amount is the ratio of the actual humidity after sprinkler fire extinguishing to the humidity of the peat before sprinkler fire extinguishing. Through the humidity change curve, the humidity change trend and humidity change amount during the entire experiment can be directly obtained.

[0083] Step 303: Determine the gas concentration change amount during the smoldering process of the combustible under each preset sprinkler parameter according to each gas concentration change curve.

[0084] When the peat is in different smoldering stages, different chemical reactions occur in the peat, and the generated gases and their concentrations are also different. By analyzing the gas concentration change curve, the gas concentration change trend and gas concentration change amount during the smoldering process of the peat under each preset sprinkler parameter can be obtained.

[0085] Step 304: Determine the target fire extinguishing method according to the temperature change amount, sprinkler duration, humidity change amount, and gas concentration change amount under each preset sprinkler parameter.

[0086] In practice, based on the temperature change obtained from the temperature change curve, it can be determined whether the temperature of the combustible material rapidly drops to a preset temperature and shows a continuous downward trend after extinguishing the fire using the current spray parameters. If the temperature of the combustible material meets the conditions of rapidly dropping to the preset temperature and showing a continuous downward trend, the humidity change curve is further checked. Based on the humidity change, it is determined whether the actual humidity of the combustible material rises to a preset humidity (such as 160%). If the actual humidity of the combustible material rises to the preset humidity, the gas concentration change curve is further checked. Based on the gas concentration change, it is determined whether the target gas concentration reaches a preset lower limit value. If the target gas concentration is lower than the preset lower limit value, the preset spray parameters are used as the preselected fire extinguishing methods. Then, the spray durations corresponding to multiple preselected fire extinguishing methods are sorted, and the preselected fire extinguishing method with the shortest spray duration is determined as the target fire extinguishing method, and the spray parameters corresponding to this preselected fire extinguishing method are used as the spray parameters of the target fire extinguishing method.

[0087] In this embodiment, by analyzing the temperature change, spray duration, humidity change, and gas concentration change under each preset spray parameter, it is possible to provide an accurate control basis for various parameters during the fire extinguishing process. The target fire extinguishing method determined by these data can achieve precise fire extinguishing for smoldering fires.

[0088] In some embodiments, the fire extinguishing system may further include an infrared thermal imager. At the start of the test, the infrared thermal imager can be turned on synchronously to capture the infrared radiation information on the surface of the peat, thereby reflecting the temperature distribution on the surface of the peat. At the same time, the infrared thermal imager can continuously monitor the temperature distribution changes on the surface of the peat in the burner and the surrounding environment during the smoldering and fire extinguishing processes of the peat, providing more comprehensive data for temperature-related analysis, reducing the interference of the external environment on temperature measurement, and ensuring the authenticity and reliability of temperature data. During the test process, the actual temperature detected by the temperature sensor can be adjusted based on the infrared radiation information detected by the infrared thermal imager, and the adjusted actual temperature is used as the temperature in subsequent tests.

[0089] During the test, different combinations of spray flow rate, spray duration, and spray angle can be used for spray extinguishing, and the actual temperature, actual humidity, and gas concentration changes in the fire extinguishing target area of the fuel bed are detected, and the corresponding temperature change curve, humidity change curve, and gas concentration change curve are plotted. Specifically, the different combinations of spray flow rate, spray duration, and spray angle include Combination 1 (spray flow rate 0.5 L / min, spray duration 1 min, spray angle 60°), Combination 2 (spray flow rate 1 L / min, spray duration 2 min, spray angle 90°), Combination 3 (spray flow rate 1.5 L / min, spray duration 5 min, spray angle 120°), Combination 4 (spray flow rate 2 L / min, spray duration 10 min, spray angle 120°), Combination 5 (spray flow rate 3 L / min, spray duration 20 min, spray angle 150°). The combustible is first ignited for 30 minutes without spray action. After it starts to enter the self-sustained smoldering stage, Combinations 1 to 5 are respectively used to spray and extinguish the combustible, and the temperature change curve when spraying and extinguishing with different combinations is obtained by plotting according to the real-time actual temperature, as Figure 4 shown in the temperature change curve when spraying and extinguishing with different combinations, as Figure 5 shown in the humidity change curve when spraying and extinguishing with different combinations, as Figure 6 shown in the gas concentration change curve when spraying and extinguishing with different combinations.

[0090] It can be seen from Figures 4 to 6 that there is an incomplete fire extinguishing situation in Combinations 1, 2, and 3. Although the temperature and gas concentration both rapidly decrease after the start of the spray extinguishing action, and the humidity rapidly increases, reignition occurs after a period of time, and the temperature and gas both rise again. In Combination 5, there is a flooding phenomenon caused by excessive injection of the fire extinguishing agent. Although the smoldering is completely extinguished and the fuel bed temperature rapidly drops below 200 °C, the moisture content of the fuel bed rapidly rises to the critical moisture content of water saturation (300%, in the dry basis state), resulting in unnecessary waste of the fire extinguishing agent (60 L). Combination 4 is a combination of spray parameters for effective fire extinguishing. Under this combination of spray parameters, the temperature index slowly drops to the pyrolysis critical temperature of 200 °C, and the moisture content gradually rises to about 160% of the ignition limit moisture content of peat smoldering. Under this combination of spray parameters, the peat no longer reignites, and the amount of fire extinguishing agent used is only one-third of that in Combination 5.

[0091] In actual operation, the real-time temperature, humidity, and gas concentration of the fuel bed are synchronously detected. Based on the above real-time multi-source experimental data, the degrees of temperature drop and humidity increase are compared and analyzed. When the maximum temperature in the target area is less than 200°C and the average humidity rises to 160% (dry basis), it can be considered that the fire extinguishing has achieved preliminary results and the sprinkler can be stopped. After the fire extinguishing operation is completed, further observation is required. If the temperature and the main gas products (such as CO) continue to decline and the humidity remains above 160%, it can be determined that the smoldering fire in the target area has been successfully extinguished.

[0092] Please refer to Figure 7 , Figure 7 is the implementation flowchart for determining the target fire extinguishing method provided by an embodiment of the present application. The flowchart may include the following steps 701 to step 702.

[0093] Step 701, obtain the combustion heat information of the combustible, and determine the combined information of the sprinkler flow rate, extinguishing agent density, and sprinkler angle according to the combustion heat information, temperature change amount, and sprinkler duration.

[0094] Among them, the combustion heat information of the above combustible includes the heat generated during the smoldering process of the combustible and the inherent heat of the combustible. When the combustible is peat, the heat generated during the smoldering process of peat is the product of the mass loss rate of peat, the calorific value of peat smoldering combustion, and the sprinkler duration. The inherent heat of peat is the product of the difference between the smoldering temperature of peat in the fire extinguishing area before fire extinguishing and the critical fire extinguishing peat temperature after fire extinguishing, and the smoldering front thickness of peat, the dry basis density of peat, and the specific heat capacity of peat.

[0095] Among them, the combined information is the product quantity relationship of the sprinkler flow rate, extinguishing agent density, and sprinkler angle.

[0096] In practice, the combined information of the sprinkler flow rate, extinguishing agent density, and sprinkler angle can be obtained through the following formula.

[0097]

[0098] Among them, is the mass loss rate of peat in the specified fire extinguishing area; is the calorific value of peat smoldering combustion; is the sprinkler duration; is the smoldering front thickness of peat; is the dry basis density of peat; is the specific heat capacity of peat; is the smoldering temperature of peat in the fire extinguishing area before fire extinguishing; is the temperature of the critical fire extinguishing fuel bed, that is, the temperature of peat after the sprinkler fire extinguishing ends; is the preset sprinkler flow rate; is the density of water or extinguishing agent; is the spray angle; is the specific heat capacity of the fire extinguishing agent.

[0099] Step 702: Screen the combined information based on the temperature change amount, humidity change amount, and gas concentration change amount to obtain the target combined information, and determine the spray flow rate, fire extinguishing agent density, and spray angle in the target combined information as the target fire extinguishing method.

[0100] After obtaining the combined information of the spray flow rate, fire extinguishing agent density, and spray angle, the values of the spray flow rate, fire extinguishing agent density, and spray angle can be respectively taken based on the combined information, and then the corresponding temperature change amount, humidity change amount, and gas concentration change amount can be obtained through experiments according to each value. The combined information is screened based on the obtained temperature change amount, humidity change amount, and gas concentration change amount to obtain the target combined information that meets the requirements of temperature, humidity, and gas concentration. Specifically, the combined information with the temperature change amount meeting the preset temperature condition, the humidity change amount meeting the preset humidity condition, and the gas concentration change amount meeting the preset concentration condition can be determined as the target combined information, and the spray flow rate, fire extinguishing agent density, and spray angle in the target combined information are determined as the spray parameters of the target fire extinguishing method.

[0101] Please refer to Figure 8 , Figure 8 is the implementation flowchart of the method for determining the fire extinguishing method in the smoldering test provided by an embodiment of the present application. The flowchart may include the following steps 801 to step 802.

[0102] Step 801: Adjust the type of fire extinguishing agent sprayed by the spray head, repeat the smoldering test, and determine the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent.

[0103] During the test, any type of fire extinguishing agent can be used first, and the peat in the smoldering state can be sprayed and extinguished with any preset spray parameters. Based on the real-time actual temperature, the temperature change curve can be drawn, based on the real-time actual humidity, the humidity change curve can be drawn, and based on the gas concentration, the gas concentration change curve can be drawn. Then, the preset spray parameters are adjusted to obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spray parameter of the current type of fire extinguishing agent. After that, the current type of fire extinguishing agent can be switched, and the above steps are repeated to obtain the temperature change curve, humidity change curve, and gas concentration change curve respectively corresponding to the fire extinguishing agent of the switched type of fire extinguishing agent when extinguishing the peat in the smoldering state with each preset spray parameter.

[0104] Step 802: Determine the target fire extinguishing agent according to the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent, and adjust the target fire extinguishing method according to the target fire extinguishing agent.

[0105] After obtaining the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent when spraying and extinguishing fire with each preset spraying parameter, the various change curves can be compared and analyzed to obtain the fire extinguishing effect corresponding to each type of fire extinguishing agent, and the fire extinguishing agent with the fire extinguishing effect meeting the requirements is used as the target fire extinguishing agent.

[0106] After that, compare and analyze the temperature change curve, humidity change curve, and gas concentration change curve of the target fire extinguishing agent under each preset spraying parameter, and based on the temperature, humidity, and gas concentration, obtain the preset spraying parameter used when the target fire extinguishing agent has the best fire extinguishing effect. Specifically, the spraying parameter used when the actual temperature is lower than the preset temperature and continuously shows a downward trend, the actual humidity reaches the preset humidity, the gas concentration is lower than the preset lower limit, and the spraying duration is the shortest is used as the spraying parameter of the target fire extinguishing method.

[0107] In this embodiment, by adjusting the type of fire extinguishing agent and determining the target fire extinguishing agent based on the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent, a suitable type of fire extinguishing agent can be provided for smoldering fire extinguishing, which helps to achieve efficient extinguishment of smoldering fire sources.

[0108] Please refer to Figure 9 , Figure 9 which is the implementation flowchart for determining the target fire extinguishing method provided by an embodiment of the present application. The flowchart may include the following steps 901 to step 902.

[0109] Step 901: Adjust the physical parameters of the combustible, repeat the smoldering test, and determine the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of fire extinguishing agent under each preset spraying parameter under each physical parameter.

[0110] In actual forest smoldering fires, there are often different combustion environments, and peat with different physical parameters can simulate various environments of forest smoldering. Among them, the physical parameters may include the moisture content, thickness, density, etc. of the peat.

[0111] During the smoldering test, for peat with any physical parameter, the above test can be carried out by keeping the types of fire extinguishing agents different and changing the preset spraying parameters, so as to obtain the temperature change curve, humidity change curve and gas concentration change curve corresponding to the peat with the current physical parameter under different preset spraying parameters for the current type of fire extinguishing agent; then adjust the type of fire extinguishing agent to obtain the temperature change curve, humidity change curve and gas concentration change curve corresponding to the peat with the current physical parameter under each preset spraying parameter for various types of fire extinguishing agents; finally, adjust the physical parameter of the peat to obtain the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent and under each preset spraying parameter under different physical parameters of the peat.

[0112] Step 902, determine the target fire extinguishing method corresponding to each physical parameter according to the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent under each preset spraying parameter under each physical parameter.

[0113] After obtaining the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent and under each preset spraying parameter under different physical parameters of the peat, the fire extinguishing effect when spraying fire extinguishing with each fire extinguishing agent and each preset spraying parameter can be obtained for each physical parameter. The type of fire extinguishing agent and the preset spraying parameter whose fire extinguishing effect meets the requirements for each physical parameter are determined as the target fire extinguishing method for the current physical parameter.

[0114] In this embodiment, by adjusting the physical parameter of the peat, different forest smoldering situations can be simulated. Based on different physical parameters of the peat, the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent under each preset spraying parameter can be obtained, and the fire extinguishing effect corresponding to each fire extinguishing method under different physical parameters can be obtained, so as to obtain the appropriate fire extinguishing method under different physical parameters.

[0115] In some embodiments, the above method may further include: obtaining the consumption of the fire extinguishing agent when the actual temperature is less than or equal to the preset temperature under each preset spraying parameter, and adjusting the target fire extinguishing method according to the consumption of the fire extinguishing agent.

[0116] During the test process, the consumption of the fire extinguishing agent under each preset spraying parameter can be counted to obtain the consumption of the fire extinguishing agent when the actual temperature is less than or equal to the preset temperature under each preset spraying parameter, and the target fire extinguishing method is adjusted based on the amount of the consumption of the fire extinguishing agent. For example, the fire extinguishing method with the least consumption of the fire extinguishing agent is determined as the target fire extinguishing method, so that when spraying fire extinguishing with the target fire extinguishing method, the purpose of smoldering fire extinguishing can be achieved with the least amount of the fire extinguishing agent.

[0117] In this embodiment, by adjusting the target method according to the fire extinguishing agent consumption, the fire extinguishing agent consumption and the fire extinguishing effect of the corresponding fire extinguishing method can be comprehensively considered, which helps to improve the resource utilization efficiency and avoid unnecessary waste of fire extinguishing resources. At the same time, the accuracy of the fire extinguishing process can be enhanced, facilitating the dynamic adjustment of the spraying parameters according to the actual situation.

[0118] Please refer to Figure 10 , Figure 10 which is a structural block diagram of a fire extinguishing method determination device 1000 provided by an embodiment of the present application, including:

[0119] A spray start unit 1001, configured to ignite the combustible material in the burner and keep it in a smoldering state, and control the spray head to spray and extinguish the combustible material in the smoldering process according to preset spray parameters;

[0120] A parameter recording unit 1002, configured to record the actual temperature and actual humidity of the combustible material in real time;

[0121] A gas detection unit 1003, configured to detect the target gas components generated by the combustible material during the smoldering process and the spray extinguishing process in real time, and the actual gas concentration corresponding to the target gas components;

[0122] A curve drawing unit 1004, configured to control the spray head to continue spraying and extinguishing when the actual temperature is greater than the preset temperature; and control the spray head to stop spraying and extinguishing when the actual temperature is less than or equal to the preset temperature, and draw a temperature change curve of the actual temperature changing with time, a humidity change curve of the actual humidity changing with time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas components changing with time;

[0123] A spray adjustment unit 1005, configured to adjust the preset spray parameters, repeat the smoldering test, and obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spray parameter;

[0124] A method determination unit 1006, configured to determine the target fire extinguishing method according to the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spray parameter.

[0125] The fire extinguishing method determination device provided in this embodiment can obtain the temperature change curve of the actual temperature over time, the humidity change curve of the actual humidity over time, and the gas concentration change curve of the actual gas concentration corresponding to the target gas component over time by monitoring and recording the changes in the temperature, humidity, and target gas component and concentration of peat under different preset sprinkler parameters in real time. These curves can accurately reflect the dynamic changes in the smoldering process and can be used as evaluation data for the fire extinguishing effects corresponding to different preset sprinkler parameters, so as to obtain the target fire extinguishing method with the best fire extinguishing effect and provide strong technical support for the prevention and control of forest fires.

[0126] In some embodiments, the method determination unit 1006 is specifically configured to:

[0127] According to each temperature change curve, determine the temperature change amount of the actual temperature under each preset sprinkler parameter and the sprinkler duration when the preset temperature is reached;

[0128] According to each humidity change curve, determine the humidity change amount of the actual humidity under each preset sprinkler parameter;

[0129] According to each gas concentration change curve, determine the gas concentration change amount during the smoldering process of the combustible under each preset sprinkler parameter;

[0130] According to the temperature change amount, sprinkler duration, humidity change amount, and gas concentration change amount under each preset sprinkler parameter, determine the target fire extinguishing method.

[0131] In some embodiments, the preset sprinkler parameters include sprinkler flow rate, fire extinguishing agent density, and sprinkler angle. The method determination unit 1006 is specifically further configured to:

[0132] Obtain the combustion heat information of the combustible, and determine the combined information of the sprinkler flow rate, fire extinguishing agent density, and sprinkler angle according to the combustion heat information, temperature change amount, and sprinkler duration;

[0133] Screen the combined information according to the temperature change amount, humidity change amount, and gas concentration change amount to obtain the target combined information, and determine the sprinkler flow rate, fire extinguishing agent density, and sprinkler angle in the target combined information as the target fire extinguishing method.

[0134] In some embodiments, the method determination unit 1006 is specifically further configured to: Determine the combined information in which the temperature change amount meets the preset temperature condition, the humidity change amount meets the preset humidity condition, and the gas concentration change amount meets the preset concentration condition as the target combined information.

[0135] In some embodiments, the device may further include a type adjustment unit and a method adjustment unit (not shown in the figure).

[0136] The type adjustment unit is used to adjust the type of extinguishing agent sprayed by the sprinkler head, repeat the smoldering test, and determine the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of extinguishing agent respectively;

[0137] The method adjustment unit is used to determine the target extinguishing agent according to the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of extinguishing agent respectively, and adjust the target extinguishing method according to the target extinguishing agent.

[0138] In some embodiments, the device may further include a peat adjustment unit and a fire extinguishing adjustment unit (not shown in the figure):

[0139] The combustible adjustment unit is used to adjust the physical parameters of the combustible, repeat the smoldering test, and determine the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of extinguishing agent under each physical parameter and each preset sprinkler parameter respectively;

[0140] The fire extinguishing adjustment unit is used to determine the target fire extinguishing method corresponding to each physical parameter according to the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each type of extinguishing agent under each physical parameter and each preset sprinkler parameter respectively.

[0141] In some embodiments, the device may further include a consumption amount acquisition unit (not shown in the figure), which is used to acquire the consumption amount of the extinguishing agent when the actual temperature is less than or equal to the preset temperature under each preset sprinkler parameter, and adjust the target extinguishing method according to the consumption amount of the extinguishing agent.

[0142] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units, due to being based on the same concept as the embodiment of the method for determining the fire extinguishing method in the smoldering test of the present application, for its specific functions and the technical effects brought, please refer to the embodiment part of the method for determining the fire extinguishing method in the smoldering test, and will not be elaborated here.

[0143] Please refer to Figure 11 , Figure 11 is the structural block diagram of the server 1100 provided in an embodiment of the present application. The server 1100 in this embodiment includes: at least one processor 1101 ( Figure 11 only one processor is shown in the figure), a memory 1102, and a computer program 1103 stored in the memory 1102 and executable on at least one processor 1101, such as a time synchronization program for a wireless network. When the processor 1101 executes the computer program 1103, it implements the steps in the embodiments of the above-mentioned various methods for determining the fire extinguishing method in the smoldering test. When the processor 1101 executes the computer program 1103, it realizes the functions of each module / unit in the above-mentioned device embodiments, for example, Figure 10The functions of the spray start unit 1001 to the mode determination unit 1006 shown above.

[0144] Exemplarily, the computer program 1103 can be divided into one or more units. One or more units are stored in the memory 1102 and executed by the processor 1101 to complete this application. One or more units can be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the computer program 1103 in the server 1100. For example, the computer program 1103 can be divided into a spray start unit, a parameter recording unit, a gas detection unit, a curve drawing unit, a spray adjustment unit, and a mode determination unit. The specific functions of each unit have been described in the above embodiments and will not be elaborated here.

[0145] The server 1100 can be a computing device such as a server, a desktop computer, a tablet computer, a cloud server, and a mobile terminal. The server 1100 may include, but is not limited to, a processor 1101 and a memory 1102. Those skilled in the art can understand that Figure 11 merely examples of the server 1100, which do not constitute a limitation on the server 1100, may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, the server may also include input and output devices, network access devices, a bus, etc.

[0146] The so-called processor 1101 may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0147] The memory 1102 can be an internal storage unit of the server 1100, such as the hard disk or memory of the server 1100. The memory 1102 can also be an external storage device of the server 1100, such as a plug-in hard disk equipped on the server 1100, a Smart Media Card (SMC), a Secure Digital (SD) card, a FlashCard, etc. Optionally, the memory 1102 can also include both the internal storage unit of the server 1100 and the external storage device. The memory 1102 is used to store computer programs and other programs and data required by the server 1100. The memory 1102 can also be used to temporarily store the data that has been output or will be output.

[0148] In addition, in each embodiment of the present application, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0149] If the integrated module 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, to implement all or part of the processes in the above-described embodiment methods of the present application, it can also be completed by a computer program instructing the relevant hardware. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-described method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0150] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0151] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for determining a fire extinguishing method for a smoldering test, characterized in that, The fire extinguishing method determination method extinguishes fires based on a fire extinguishing system, and the fire extinguishing system includes a sprinkler fire extinguishing system. The method includes: Ignite the combustible material in the burner and keep it in a smoldering state, and control the sprinkler head to spray and extinguish the combustible material in the smoldering process according to preset sprinkling parameters; Record the actual temperature and actual humidity of the combustible material in real time; Detect in real time the target gas components generated by the combustible material during the smoldering process and the sprinkler fire extinguishing process, and the actual gas concentration corresponding to the target gas components; When the actual temperature is greater than the preset temperature, control the sprinkler head to continue spraying and extinguishing; and when the actual temperature is less than or equal to the preset temperature, control the sprinkler head to stop spraying and extinguishing, and draw a temperature change curve of the actual temperature changing with time, a humidity change curve of the actual humidity changing with time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas components changing with time; Adjust the preset sprinkling parameters, repeat the smoldering test, and obtain the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each preset sprinkling parameter; Determine the target fire extinguishing method according to the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each preset sprinkling parameter, including determining the temperature change amount of the actual temperature under each preset sprinkling parameter according to each temperature change curve, and the sprinkling duration when reaching the preset temperature; If it is determined based on the temperature change amount that the temperature of the combustible material drops to the preset temperature and shows a continuous downward trend, then determine the humidity change amount of the actual humidity under each preset sprinkling parameter according to each humidity change curve; If it is determined based on the humidity change amount that the humidity of the combustible material rises to the preset humidity, then determine the gas concentration change amount during the smoldering process of the combustible material under each preset sprinkling parameter according to each gas concentration change curve; If it is determined based on the concentration change amount that the concentration of the target gas is lower than the preset lower limit value, then determine the target fire extinguishing method according to the temperature change amount, the sprinkling duration, the humidity change amount, and the gas concentration change amount under each preset sprinkling parameter; Among them, the preset sprinkling parameters include sprinkling flow rate, fire extinguishing agent density, and sprinkling angle. The determination of the target fire extinguishing method includes: Obtain the combustion heat information of the combustible material, and determine the combined information of the sprinkling flow rate, the fire extinguishing agent density, and the sprinkling angle according to the combustion heat information, the temperature change amount, and the sprinkling duration; Screen the combined information according to the temperature change amount, the humidity change amount, and the gas concentration change amount to obtain target combined information, and determine the sprinkling flow rate, the fire extinguishing agent density, and the sprinkling angle in the target combined information as the target fire extinguishing method; Among them, the combined information of the sprinkling flow rate, the fire extinguishing agent density, and the sprinkling angle is obtained through the following formula: ; wherein, is the mass loss rate of peat in the specified fire extinguishing area; is the calorific value of the smoldering combustion of peat; is the spraying duration; is the thickness of the smoldering front of peat; is the dry basis density of peat; is the specific heat capacity of peat; is the smoldering temperature of peat in the fire extinguishing area before fire extinguishing; is the temperature of the critical fire extinguishing fuel bed, that is, the temperature of peat after the spraying fire extinguishing ends; is the preset spraying flow rate; is the density of water or fire extinguishing agent; is the spraying angle; is the specific heat capacity of the fire extinguishing agent.

2. The method for determining the fire extinguishing method of the smoldering test according to claim 1, wherein Screening the combined information according to the temperature change amount, the humidity change amount, and the gas concentration change amount to obtain target combined information, including: Determining the combined information in which the temperature change amount meets a preset temperature condition, the humidity change amount meets a preset humidity condition, and the gas concentration change amount meets a preset concentration condition as the target combined information.

3. The method for determining the fire extinguishing method of the smoldering test according to claim 1, characterized in that, The method further includes: Adjusting the type of fire extinguishing agent sprayed by the sprinkler head, repeating the smoldering test, and determining the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each type of fire extinguishing agent. Determining a target fire extinguishing agent according to the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each type of fire extinguishing agent, and adjusting the target fire extinguishing method according to the target fire extinguishing agent.

4. The method for determining the fire extinguishing method of the smoldering test according to claim 3, wherein The method further includes: Adjusting the physical parameters of the combustible, repeating the smoldering test, and determining the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each type of fire extinguishing agent under each preset sprinkler parameter under each physical parameter. Determining the target fire extinguishing method corresponding to each physical parameter according to the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each type of fire extinguishing agent under each preset sprinkler parameter under each physical parameter.

5. The method for determining the fire extinguishing method of the smoldering test according to claim 3, wherein The method further includes: Obtaining the consumption amount of the fire extinguishing agent when the actual temperature is less than or equal to the preset temperature under each preset sprinkler parameter, and adjusting the target fire extinguishing method according to the consumption amount of the fire extinguishing agent.

6. An apparatus for determining a fire extinguishing method for a smoldering test. The fire extinguishing method determining apparatus extinguishes fires based on a fire extinguishing system, and the fire extinguishing system includes a sprinkler fire extinguishing system. The apparatus includes: A sprinkler activation unit, configured to ignite the combustible in the burner and keep it in a smoldering state, and control the sprinkler head to spray fire extinguishing agent on the combustible in the smoldering process according to preset sprinkler parameters. A parameter recording unit, configured to record the actual temperature and actual humidity of the combustible in real time. A gas detection unit, configured to detect the target gas components generated by the combustible during the smoldering process and the fire extinguishing process by spraying, and the actual gas concentration corresponding to the target gas components in real time. A curve drawing unit, configured to control the sprinkler head to continue spraying fire extinguishing agent when the actual temperature is greater than the preset temperature; and control the sprinkler head to stop spraying fire extinguishing agent when the actual temperature is less than or equal to the preset temperature, and draw a temperature change curve of the actual temperature changing with time, a humidity change curve of the actual humidity changing with time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas components changing with time. A sprinkler adjustment unit, configured to adjust the preset sprinkler parameters, repeat the smoldering test, and obtain the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each preset sprinkler parameter. A method determination unit, configured to determine a target fire extinguishing method according to the temperature change curve, the humidity change curve, and the gas concentration change curve respectively corresponding to each of the preset spraying parameters, including determining, according to each of the temperature change curves, the temperature change amount of the actual temperature at each of the preset spraying parameters, and the spraying duration when the preset temperature is reached; If it is determined based on the temperature change amount that the temperature of the combustible material drops to the preset temperature and shows a continuous downward trend, then according to each of the humidity change curves, determine the humidity change amount of the actual humidity at each of the preset spraying parameters; If it is determined based on the humidity change amount that the humidity of the combustible material rises to the preset humidity, then according to each of the gas concentration change curves, determine the gas concentration change amount during the smoldering process of the combustible material at each of the preset spraying parameters; If it is determined based on the concentration change amount that the concentration of the target gas is lower than the preset lower limit value, then according to the temperature change amount, the spraying duration, the humidity change amount, and the gas concentration change amount at each of the preset spraying parameters, determine the target fire extinguishing method; Wherein, the preset spraying parameters include spraying flow rate, fire extinguishing agent density, and spraying angle, and the determining of the target fire extinguishing method includes: Obtain the combustion heat information of the combustible material, and determine the combined information of the spraying flow rate, the fire extinguishing agent density, and the spraying angle according to the combustion heat information, the temperature change amount, and the spraying duration; Screen the combined information according to the temperature change amount, the humidity change amount, and the gas concentration change amount to obtain target combined information, and determine the spraying flow rate, the fire extinguishing agent density, and the spraying angle in the target combined information as the target fire extinguishing method; Wherein, the combined information of the spraying flow rate, the fire extinguishing agent density, and the spraying angle is obtained through the following formula: ; wherein, is the mass loss rate of peat in the specified fire extinguishing area; is the calorific value of smoldering combustion of peat; is the spraying duration; is the thickness of the smoldering front of peat; is the dry basis density of peat; is the specific heat capacity of peat; is the smoldering temperature of peat in the fire extinguishing area before fire extinguishing; is the temperature of the critical fire extinguishing fuel bed, that is, the temperature of peat after the spraying fire extinguishing ends; is the preset spraying flow rate; is the density of water or fire extinguishing agent; is the spraying angle; is the specific heat capacity of the fire extinguishing agent.

7. A server, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method for determining the fire extinguishing method of the smoldering test according to any one of claims 1-5.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the method for determining the fire extinguishing method of the smoldering test according to any one of claims 1-5.

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