Fire extinguishing mode determination method and device for smoldering test, server and storage medium

Abstract

The invention is applicable to the technical field of forest fire protection, and provides a smoldering test fire extinguishing mode determination method and device, a server and a storage medium, the smoldering test fire extinguishing mode determination method comprises the following steps: igniting comburent in a combustor, enabling the comburent to be in a smoldering state, and controlling a spray header to spray and extinguish fire according to preset spray parameters; the actual temperature and the actual humidity of the comburent are recorded in real time; the target gas component and the actual gas concentration generated in the smoldering process and the spraying fire extinguishing process of the comburent are detected in real time; when the actual temperature is smaller than or equal to the preset temperature, the spraying head is controlled to stop spraying fire extinguishing, and a temperature change curve, a humidity change curve and a gas concentration change curve are drawn; the preset spraying parameters are adjusted, the smoldering test is repeated, and a temperature change curve, a humidity change curve and a gas concentration change curve corresponding to the preset spraying parameters are obtained; and determining a target fire extinguishing mode according to the temperature change curve, the humidity change curve and the gas concentration change curve corresponding to each preset spraying parameter.

Description

Technical Field

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

[0002] Forest fire is an uncontrolled burning of forests that occurs mostly in open spaces. According to the manifestation of forest fires, they can be divided into two major categories: open fire and smoldering forest fires. Smoldering is a low-temperature, flameless, slow burning phenomenon that mainly occurs and spreads in the humus and peat layers below the surface, with temperatures generally between 300 and 600°C.

[0003] Smoldering forest fires are one of the most extensive and longest-lasting combustion phenomena in the world. They are relatively hidden and can transform into open fires and other types of forest fires when dry and windy. Once a smoldering forest fire transforms into a surface fire, the fire temperature and heat release rate will increase exponentially, and the speed of fire spread will change suddenly, resulting in more intense destructiveness. Therefore, it is urgent to carry out systematic research on the extinguishing of smoldering forest fires to prevent them from re-igniting. Summary of the invention

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

[0005] A first aspect of an embodiment of the present application provides a method for determining a fire extinguishing method for a smoldering test. The method for determining a fire extinguishing method is based on extinguishing a fire by a fire extinguishing system, the fire extinguishing system includes a sprinkler fire extinguishing system, and the method includes: Ignite the combustibles in the burner and keep them in a smoldering state, and control the sprinkler head to spray and extinguish the combustibles in the smoldering process according to the preset sprinkler parameters; Record the actual temperature and humidity of the burning material in real time; Real-time detection of target gas components generated by burning materials during smoldering and spraying fire extinguishing, as well as actual gas concentrations corresponding to target gas components; When the actual temperature is greater than the preset temperature, the sprinkler head is controlled to continue to spray and extinguish the fire; and when the actual temperature is less than or equal to the preset temperature, the sprinkler head is controlled to stop spraying and extinguishing the fire, and a temperature change curve of the actual temperature over time, a humidity change curve of the actual humidity over time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas component over time are drawn; 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; The target fire extinguishing method is determined according to the temperature change curve, humidity change curve and gas concentration change curve corresponding to each preset spray parameter.

[0006] In some embodiments, the target fire extinguishing method is determined according to the temperature change curve, humidity change curve and gas concentration change curve corresponding to each preset spray parameter, including: According to each temperature change curve, determine the temperature change of the actual temperature under each preset spray parameter, and the spraying time when the preset temperature is reached; According to each humidity change curve, determine the humidity change amount of the actual humidity under each preset spray parameter; According to each gas concentration change curve, determine the gas concentration change amount during the smoldering process of the combustion object under each preset spray parameter; The target fire extinguishing method is determined based on the temperature change, spraying time, humidity change and gas concentration change under each preset spraying parameter.

[0007] In some embodiments, the preset spray parameters include spray flow rate, fire extinguishing agent density and spray angle, and determining the target fire extinguishing method includes: Obtain the combustion heat information of the combustion object, and determine the combination information of the spray flow rate, the density of the fire extinguishing agent and the spray angle according to the combustion heat information, the temperature change and the spraying time; The combined information is screened according to the temperature change, humidity change and gas concentration change to obtain target combined information, and the spray flow, extinguishing agent density and spray angle in the target combined information are determined as the target fire extinguishing method.

[0008] In some embodiments, the combined information is screened according to the temperature change, humidity change, and gas concentration change to obtain target combined information, including: The combined information that the temperature change satisfies the preset temperature condition, the humidity change satisfies the preset humidity condition, and the gas concentration change satisfies the preset concentration condition is determined as the target combined information.

[0009] In some embodiments, the method further comprises: 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; The target fire extinguishing agent is determined according to the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent, and the target fire extinguishing method is adjusted according to the target fire extinguishing agent.

[0010] In some embodiments, the method further comprises: Adjust the physical parameters of the burning object, 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 spray parameter under 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 physical parameter under each preset spray parameter, the target fire extinguishing method corresponding to each physical parameter is determined.

[0011] In some embodiments, the method further comprises: Obtain the fire extinguishing agent consumption when the actual temperature is less than or equal to the preset temperature under each preset spray parameter, and adjust the target fire extinguishing method according to the fire extinguishing agent consumption.

[0012] A second aspect of an embodiment of the present application provides a fire extinguishing method determination device, which performs fire extinguishing based on a fire extinguishing system, the fire extinguishing system including a sprinkler fire extinguishing system, and the device includes: The spray start unit is used to ignite the combustion material in the burner and make it smolder, and control the spray head to spray and extinguish the combustion material in the smoldering process according to the preset spray parameters; Parameter recording unit, used to record the actual temperature and humidity of the combustion object in real time; The gas detection unit is used to detect in real time the target gas components generated by the combustion materials during the smoldering process and the spraying fire extinguishing process, as well as the actual gas concentration corresponding to the target gas components; A curve drawing unit, used to control the sprinkler head to continue spraying and extinguishing the fire when the actual temperature is greater than the preset temperature; and used to control the sprinkler head to stop spraying and extinguishing the fire 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 component changing with time; A spray adjustment unit is used 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; The method determination unit is used 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.

[0013] A third aspect of an embodiment 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, wherein the processor implements the steps of the method provided in the first aspect when executing the computer program.

[0014] A fourth aspect of an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the method provided in the first aspect are implemented.

[0015] The implementation of the method, device, server and storage medium provided in 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 composition and concentration of the burning material 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 composition 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 effect corresponding to different preset spray parameters, thereby obtaining the target fire extinguishing method with the best fire extinguishing effect, providing strong technical support for the prevention and control of forest fires. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a flow chart of the implementation of the method for determining the fire extinguishing mode of the smoldering test provided in one embodiment of the present application; Figure 2 is a schematic diagram of a smoldering forest fire extinguishing system provided by an embodiment of the present application; Figure 3 This is a flowchart for implementing a method for determining a target fire extinguishing method provided by an embodiment of the present application; Figure 4 It is a schematic diagram of temperature change curves when different combinations are used for spraying fire extinguishing provided in an embodiment of the present application; Figure 5 It is a schematic diagram of humidity change curves when different combinations are used for spraying fire extinguishing provided in an embodiment of the present application; Figure 6 It is a schematic diagram of a gas concentration variation curve when different combinations are used for spraying fire extinguishing provided in an embodiment of the present application; Figure 7 This is a flowchart for implementing a method for determining a target fire extinguishing method provided by an embodiment of the present application; Figure 8 It is a flow chart of the implementation of the method for determining the fire extinguishing mode of the smoldering test provided in one embodiment of the present application; Fig. 9This is a flowchart for implementing a method for determining a target fire extinguishing method provided by an embodiment of the present application; Fig.10 It is a structural block diagram of a fire extinguishing mode determination device provided in an embodiment of the present application; Fig.11 It is a structural block diagram of a server provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may 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 prevent unnecessary details from obstructing the description of the present application.

[0019] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of 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 combinations thereof.

[0020] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0021] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0022] In order to illustrate the technical solution of the present application, the following embodiments are used for illustration.

[0023] See also Figure 1 , Figure 1This is a flowchart for implementing a method for determining a fire extinguishing method for a smoldering test provided in an embodiment of the present application. The flowchart may include the following steps 101 to 106.

[0024] Step 101, ignite the combustibles in the burner and make them in a smoldering state, and control the sprinkler head to spray and extinguish the combustibles in the smoldering process according to preset sprinkler parameters.

[0025] The method for determining the fire extinguishing method for the smoldering test is based on the fire extinguishing system, which includes a sprinkler fire extinguishing system, such as Figure 2 As shown, Figure 2 It is a schematic diagram of a smoldering forest fire extinguishing system provided in one embodiment of the present application. The fire extinguishing system includes a fire extinguishing agent release system, that is, a sprinkler fire extinguishing system.

[0026] The above-mentioned burning material is usually peat. Before the smoldering test is carried out, the peat sample can be screened to remove impurities such as stones and branches, so that the peat particles used in the test are uniform. Afterwards, 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.

[0027] After the peat is in a stable smoldering state, the sprinkler head is turned on and controlled to spray and extinguish the smoldering peat according to preset sprinkler parameters.

[0028] Among them, the preset spray parameters are pre-set spray related parameters, and the preset spray parameters may include at least one of the following: spray flow, fire extinguishing agent density and spray angle. The spray flow is the amount of water injected per minute by the sprinkler head. The spray flow can be set in multiple ways, for example, 0.5L / min, 1L / min, 1.5L / min, 2L / min, 2.5L / min, 3L / min, etc., so as to obtain the fire extinguishing effects corresponding to different spray flow rates. The spray angle is the angle covered by the fire extinguishing agent sprayed at the sprinkler head outlet. The spray angle can be set in multiple ways, for example, 60°, 90°, 120°, 150°, etc., so as to obtain the fire extinguishing effects corresponding to different spray angles.

[0029] Step 102, recording the actual temperature and actual humidity of the combustion material in real time.

[0030] In practice, Figure 2 As shown, the temperature sensor can be implemented as a thermocouple, the humidity sensor can be implemented as a humidity detector, the fire extinguishing system can include a thermocouple array and a humidity detector, multiple thermocouples in the thermocouple array are evenly distributed in the peat, so as to obtain the actual temperature of the peat, and the humidity detector is arranged on the top of the fire extinguishing system, so as to obtain the actual humidity of the peat.

[0031] Step 103 , real-time detection of target gas components generated by the combustion material during the smoldering process and the sprinkler fire extinguishing process, as well as actual gas concentrations corresponding to the target gas components.

[0032] The target gas components may include carbon dioxide, carbon monoxide, etc.

[0033] Here, a Fourier transform infrared spectrometer can be used to monitor in real time the gas composition and concentration changes produced during peat combustion and fire extinguishing, detect the target gas composition and its corresponding actual gas concentration, and thus analyze the chemical process of combustion and fire extinguishing reactions.

[0034] Step 104, when the actual temperature is greater than the preset temperature, control the sprinkler head to continue spraying to extinguish the fire; and when the actual temperature is less than or equal to the preset temperature, control the sprinkler head to stop spraying to extinguish the fire, 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.

[0035] The preset temperature is a preset temperature, for example, 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 re-ignition is low, and if the actual temperature is greater than the preset temperature, it indicates that the possibility of peat re-ignition is high.

[0036] When the actual temperature of the peat is greater than the preset temperature, it indicates that the peat is still likely to reignite, and the sprinkler head needs to be controlled to continue to spray the peat to extinguish the fire. When the actual temperature of the peat is less than or equal to the preset temperature, it indicates that the smoldering can be extinguished when the fire is sprayed according to the current preset spray parameters. The temperature change curve corresponding to the current preset spray parameters can be drawn based on the change of the actual temperature over time, the humidity change curve corresponding to the current preset spray 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 spray parameters can be drawn based on the change of the actual gas concentration corresponding to the target gas component over time.

[0037] Step 105, adjusting the preset spray parameters, repeating the smoldering test, and obtaining the temperature change curve, humidity change curve, and gas concentration change curve corresponding to each preset spray parameter.

[0038] During the test, after obtaining the above-mentioned change curve of the current preset spray parameter, the spray parameter can be adjusted. For example, when the preset spray parameter includes 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 spray parameter. After that, one of the preset spray parameters can be changed in turn to obtain the temperature change curve, humidity change curve and gas concentration change curve corresponding to each preset spray parameter.

[0039] For example, the preset spray parameters include spray flow rate (0.5L / min, 1L / min, 1.5L / min, 2L / min, 3L / min) and spray angle (120°). When conducting the test, the spray flow rate can be set to 0.5L / min and the spray angle can be set to 120°. Then, the peat in the smoldering state can be sprayed to extinguish the fire. The temperature change curve, humidity change curve and gas concentration change curve corresponding to the preset spray coefficient can be obtained. After that, the spray flow rate can be adjusted, the spray flow rate can be set to 1L / min, and the peat in the smoldering state can be sprayed to extinguish the fire. Peat fire is extinguished by spraying, and the temperature change curve, humidity change curve and gas concentration change curve corresponding to the preset spray parameters of 1L / min spray flow rate and 120° spray angle are obtained; then, the spray flow rate can be adjusted to 1.5L / min, 2L / min, and 3L / min in sequence, and the spray angle is 120°, and the peat in the smoldering state is sprayed to extinguish the fire, and the temperature change curve, humidity change curve and gas concentration change curve corresponding to the preset spray parameters of 1.5L / min, 2L / min, 3L / min and 120° spray angle are obtained. 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.

[0040] Step 106, determining a target fire extinguishing method according to the temperature change curve, humidity change curve and gas concentration change curve corresponding to each preset spray parameter.

[0041] In practice, it is possible to determine based on the temperature change curve whether the temperature of the burning material continues to be lower than the preset temperature and shows a downward trend after the current spray parameters are used for fire extinguishing. If the temperature of the burning material continues to be lower than the preset temperature and shows a downward trend, the humidity change curve is further checked. If the humidity rises to the preset humidity (for example, 160%), the gas concentration change curve is further checked. If the gas concentration shows a continuous downward trend, the preset spray parameters are used as the spray parameters of the target fire extinguishing method.

[0042] The method for determining the fire extinguishing method for the smoldering test provided in the present embodiment can obtain 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 changing with time corresponding to the target gas component by real-time monitoring and recording the changes in temperature, humidity, and target gas composition and concentration of peat under different preset spray parameters. 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, thereby obtaining the target fire extinguishing method with the best fire extinguishing effect, providing strong technical support for the prevention and control of forest fires.

[0043] See also Figure 3 , Figure 3 This 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.

[0044] Step 301, according to each temperature change curve, determine the temperature change amount of the actual temperature under each preset spray parameter, and the spraying time when the preset temperature is reached.

[0045] The temperature variation of the actual temperature is the difference between two actual temperatures. The temperature variation can be obtained by subtracting the actual temperatures of two sampling points in the temperature variation curve.

[0046] During the test, the timing can be started from the time the sprinkler head sprays the fire extinguishing agent, and the actual temperature of the peat can be recorded in real time. When the actual temperature reaches the preset temperature, the duration of the sprinkler head spraying can be obtained.

[0047] Step 302: Determine the humidity change amount of the actual humidity under each preset spray parameter according to each humidity change curve.

[0048] The humidity change is the ratio of the actual humidity after the spraying fire extinguishing to the humidity of the peat before the spraying fire extinguishing. Through the humidity change curve, the humidity change trend and humidity change in the whole experiment process can be directly obtained.

[0049] Step 303, determining the gas concentration change amount during the smoldering process of the combustion material under each preset spray parameter according to each gas concentration change curve.

[0050] When peat is in different smoldering stages, the chemical reactions in the peat are different, and the gases produced and their concentrations are also different. By analyzing the gas concentration change curve, the gas concentration change trend and gas concentration change amount of the peat smoldering process under each preset spray parameter can be obtained.

[0051] Step 304, determining a target fire extinguishing method according to the temperature change, spraying time, humidity change and gas concentration change under each preset spraying parameter.

[0052] In practice, it is possible to determine, based on the temperature change amount obtained from the temperature change curve, whether the temperature of the burning object quickly drops to the preset temperature and shows a continuous downward trend after the current spray parameters are used for fire extinguishing; if the temperature of the burning object satisfies the requirement of quickly dropping to the preset temperature and showing a continuous downward trend, then the humidity change curve is further checked to determine whether the actual humidity of the burning object rises to the preset humidity (for example, 160%) based on the humidity change amount; if the actual humidity of the burning object rises to the preset humidity, then the gas concentration change curve is further checked to determine whether the target gas concentration reaches the preset lower limit based on the gas concentration change amount; if the target gas concentration is lower than the preset lower limit, then the preset spray parameter is used as the pre-selected fire extinguishing method, and then the spray times corresponding to multiple pre-selected fire extinguishing methods are sorted, and the pre-selected fire extinguishing method with the shortest spray time is determined as the target fire extinguishing method, and the spray parameters corresponding to the pre-selected fire extinguishing method are used as the spray parameters of the target fire extinguishing method.

[0053] In this embodiment, by analyzing the temperature change, spraying time, humidity change and gas concentration change under each preset spray parameter, it is possible to provide a precise control basis for various parameters in the fire extinguishing process, and the target fire extinguishing method determined by these data can achieve accurate extinguishing of smoldering fires.

[0054] In some embodiments, the fire extinguishing system may also include an infrared thermal imager. At the beginning of the test, the infrared thermal imager may be turned on synchronously to capture the infrared radiation information of the peat surface, thereby reflecting the temperature distribution of the peat surface. At the same time, the infrared thermal imager can monitor the temperature distribution changes of the peat surface and the surrounding environment in the burner during the smoldering and extinguishing of the peat in real time, providing more comprehensive data for temperature-related analysis, reducing the interference of the external environment on the temperature measurement, and ensuring the authenticity and reliability of the temperature data. During the test, 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.

[0055] During the test, different combinations of spray flow, spray duration and spray angle can be used for spray fire 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 graph, humidity change curve graph and gas concentration change curve graph are drawn. Specifically, different combinations of spray flow, spray time and spray angle include combination 1 (spray flow 0.5L / min, spray time 1min, spray angle 60°), combination 2 (spray flow 1L / min, spray time 2min, spray angle 90°), combination 3 (spray flow 1.5L / min, spray time 5min, spray angle 120°), combination 4 (spray flow 2L / min, spray time 10min, spray angle 120°), combination 5 (spray flow 3L / min, spray time 20min, spray angle 150°). The burning object is first ignited for 30 minutes without spraying. After it begins to enter the self-sustaining smoldering stage, combinations 1 to 5 are used to spray and extinguish the burning object, and the actual temperature is plotted according to the real-time actual temperature. Figure 4 The temperature variation curves when different combinations are used for sprinkler fire extinguishing are shown in the figure. Figure 5 The humidity change curves when different combinations are used for sprinkler fire extinguishing are shown in the figure. Figure 6 The gas concentration change curve when different combinations are used for sprinkler fire extinguishing is shown.

[0056] Depend on Figures 4 to 6 It can be seen that the fire extinguishing was not thorough in combination 1, combination 2 and combination 3. Although the temperature and gas concentration dropped rapidly after the sprinkler extinguishing effect was turned on, and the humidity increased rapidly, they all re-ignited after a period of time, and the temperature and gas rose again. Combination 5 had a flooding phenomenon caused by excessive injection of fire extinguishing agent. Although the smoldering was completely extinguished and the temperature of the fuel bed dropped rapidly to below 200°C, the moisture content of the fuel bed rose rapidly to the critical moisture content of water saturation (300%, on a dry basis), resulting in unnecessary waste of fire extinguishing agent (60L). Combination 4 is a combination of spray parameters for effective fire extinguishing. Under this combination of spray parameters, the temperature index slowly dropped to the critical temperature of pyrolysis 200°C, and the moisture content gradually increased to about 160% of the smoldering ignition limit moisture content of peat. Under this combination of spray parameters, the peat no longer re-ignited, and the amount of fire extinguishing agent used was only one-third of that in combination 5.

[0057] In actual operation, the real-time temperature, humidity, and gas concentration of the fuel bed are detected simultaneously. Based on the above real-time multi-source experimental data, the degree of temperature drop and humidity increase are compared and analyzed. When the maximum temperature of 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 initial results and the spraying can be stopped. After the fire extinguishing operation is completed, further observation is required. When the temperature and main gas products (such as CO) continue to drop and the humidity is maintained above 160%, it can be determined that the smoldering fire in the target area has been successfully extinguished.

[0058] See also Figure 7 , Figure 7 This 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 701 to 702.

[0059] Step 701, obtain the combustion heat information of the combustion object, and determine the combination information of the spray flow rate, the density of the fire extinguishing agent and the spray angle according to the combustion heat information, the temperature change and the spraying time.

[0060] The combustion heat information of the above-mentioned 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 the peat is the product of the mass loss rate of the peat, the calorific value of the smoldering combustion of the peat and the spraying time. The inherent heat of the peat is the difference between the smoldering temperature of the peat in the extinguishing area before extinguishing the fire and the critical extinguishing peat temperature after extinguishing the fire, and the product of the smoldering front thickness of the peat, the dry basis density of the peat, and the specific heat capacity of the peat.

[0061] The combined information is the product quantity relationship of the spray flow rate, the density of the fire extinguishing agent and the spray angle.

[0062] In practice, the combined information of spray flow, extinguishing agent density and spray angle can be obtained by the following formula.

[0063]

[0064] in, 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 extinguishing area before extinguishing the fire; is the critical extinguishing fuel bed temperature, i.e. the temperature of the peat after the spray extinguishing is completed; is the preset spray flow rate; is the density of water or extinguishing agent; is the spray angle; is the specific heat capacity of the fire extinguishing agent.

[0065] Step 702, filter the combination information according to the temperature change, humidity change and gas concentration change to obtain target combination information, and determine the spray flow, extinguishing agent density and spray angle in the target combination information as the target fire extinguishing method.

[0066] After obtaining the combination information of the spray flow rate, the fire extinguishing agent density and the spray angle, the spray flow rate, the fire extinguishing agent density and the spray angle can be respectively taken values ​​based on the combination information, and then experiments are carried out according to each value to obtain the corresponding temperature change, humidity change and gas concentration change. The combination information is screened according to the obtained temperature change, humidity change and gas concentration change to obtain the target combination information that meets the temperature, humidity and gas concentration requirements. Specifically, the combination information in which the temperature change meets the preset temperature condition, the humidity change meets the preset humidity condition, and the gas concentration change meets the preset concentration condition can be determined as the target combination information, and the spray flow rate, fire extinguishing agent density and spray angle in the target combination information are determined as the spray parameters of the target fire extinguishing method.

[0067] See also Figure 8 , Figure 8 This is a flowchart for implementing a method for determining a fire extinguishing method for a smoldering test provided in an embodiment of the present application. The flowchart may include the following steps 801 to 802.

[0068] Step 801, adjusting the type of fire extinguishing agent sprayed by the sprinkler head, repeating the smoldering test, and determining the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent.

[0069] During the test, any type of fire extinguishing agent can be used to spray and extinguish the smoldering peat with any preset spraying parameters, and a temperature change curve can be drawn based on the real-time actual temperature, a humidity change curve can be drawn based on the real-time actual humidity, and a gas concentration change curve can be drawn based on the gas concentration. Then, the preset spraying parameters can be adjusted to obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to the current type of fire extinguishing agent under each preset spraying parameter. After that, the current type of fire extinguishing agent can be switched, and the above steps can be repeated to obtain the temperature change curve, humidity change curve, and gas concentration change curve corresponding to the fire extinguishing agent of the switched type of fire extinguishing agent, and each preset spraying parameter can be used to extinguish the smoldering peat.

[0070] Step 802, determining a target fire extinguishing agent according to the temperature variation curve, humidity variation curve and gas concentration variation curve corresponding to each type of fire extinguishing agent, and adjusting the target fire extinguishing method according to the target fire extinguishing agent.

[0071] After obtaining the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent when each preset spray parameter is used for spraying fire extinguishing, 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 that meets the requirements can be used as the target fire extinguishing agent.

[0072] Afterwards, the temperature change curve, humidity change curve and gas concentration change curve of the target fire extinguishing agent under each preset spraying parameter are compared and analyzed, and the preset spraying parameters used by the target fire extinguishing agent when the fire extinguishing effect is best are obtained based on the temperature, humidity and gas concentration. Specifically, the spraying parameters used when the actual temperature is lower than the preset temperature and continues to decline, the actual humidity reaches the preset humidity, the gas concentration is lower than the preset lower limit, and the spraying time is the shortest are used as the spraying parameters of the target fire extinguishing method.

[0073] In this embodiment, by adjusting the type of fire extinguishing agent and determining the target fire extinguishing agent based on the temperature change curves, humidity change curves and gas concentration change curves corresponding to various types of fire extinguishing agents, a suitable type of fire extinguishing agent can be provided for smoldering fire extinguishing, which helps to achieve efficient extinguishing of smoldering fire sources.

[0074] See also Fig. 9 , Fig. 9 This 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 901 to 902.

[0075] Step 901, adjust the physical parameters of the combustion object, 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 physical parameter and each preset spray parameter.

[0076] 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 peat.

[0077] During the smoldering test, the above test can be carried out on peat of any physical parameters, while keeping the type of fire extinguishing agent different and changing the preset spray parameters to obtain the temperature change curve, humidity change curve and gas concentration change curve corresponding to the peat of current physical parameters using the current type of fire extinguishing agent under different preset spray parameters; then the type of fire extinguishing agent can be adjusted to obtain the temperature change curve, humidity change curve and gas concentration change curve corresponding to the peat of current physical parameters using various types of fire extinguishing agents under each preset spray parameter; finally, the physical parameters of the peat can be adjusted to obtain the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent and each preset spray parameter under different physical parameters of the peat.

[0078] Step 902, according to the temperature variation curve, humidity variation curve and gas concentration variation curve corresponding to each type of fire extinguishing agent under each physical parameter under each preset spray parameter, a target fire extinguishing method corresponding to each physical parameter is determined.

[0079] After obtaining the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent and each preset spraying parameter under different physical parameters of peat, the fire extinguishing effect of spraying fire extinguishing by using each fire extinguishing agent and each preset spraying parameter under each physical parameter can be obtained, and the type of fire extinguishing agent and preset spraying parameters that meet the requirements of the fire extinguishing effect under each physical parameter are determined as the target fire extinguishing method under the current physical parameters.

[0080] In this embodiment, by adjusting the physical parameters of peat, different forest smoldering conditions can be simulated. Based on the different physical parameters of peat, the temperature change curve, humidity change curve and gas concentration change curve corresponding to each type of fire extinguishing agent under each preset spray parameter are obtained. The fire extinguishing effect corresponding to each fire extinguishing method under different physical parameters can be obtained, thereby obtaining a suitable fire extinguishing method under different physical parameters.

[0081] In some embodiments, the above method may further include: obtaining the fire extinguishing agent consumption when the actual temperature is less than or equal to the preset temperature under each preset spray parameter, and adjusting the target fire extinguishing method according to the fire extinguishing agent consumption.

[0082] During the test, the fire extinguishing agent consumption under each preset spray parameter can be counted to obtain the fire extinguishing agent consumption when the actual temperature is less than or equal to the preset temperature under each preset spray parameter, and the target fire extinguishing method can be adjusted based on the amount of fire extinguishing agent consumption. For example, the fire extinguishing method with the least fire extinguishing agent consumption is determined as the target fire extinguishing method, so that when the target fire extinguishing method is used for spraying fire extinguishing, the purpose of smoldering fire extinguishing can be achieved with the least amount of fire extinguishing agent.

[0083] In this embodiment, by adjusting the target mode through the consumption of fire extinguishing agent, the consumption of fire extinguishing agent and the fire extinguishing effect of the corresponding fire extinguishing mode can be comprehensively considered, which helps to improve the efficiency of resource utilization and avoid unnecessary waste of fire extinguishing resources; at the same time, it can enhance the accuracy of the fire extinguishing process and facilitate dynamic adjustment of spraying parameters according to actual conditions.

[0084] See also Fig.10 , Fig.10 1 is a structural block diagram of a fire extinguishing method determination device 1000 provided in an embodiment of the present application, including: The spray start unit 1001 is used to ignite the combustibles in the burner and put them into a smoldering state, and control the spray head to spray and extinguish the combustibles in the smoldering process according to preset spray parameters; The parameter recording unit 1002 is used to record the actual temperature and humidity of the combustion object in real time; The gas detection unit 1003 is used to detect in real time the target gas components generated by the combustion material during the smoldering process and the spraying fire extinguishing process, as well as the actual gas concentration corresponding to the target gas components; The curve drawing unit 1004 is used to control the sprinkler head to continue to spray and extinguish the fire when the actual temperature is greater than the preset temperature; and to control the sprinkler head to stop spraying and extinguishing the fire when the actual temperature is less than or equal to the preset temperature, and to 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; The spray adjustment unit 1005 is used 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; The method determination unit 1006 is used 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.

[0085] The fire extinguishing method determination device provided in this embodiment can obtain 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 changing with time corresponding to the target gas component by real-time monitoring and recording the changes in temperature, humidity, and target gas composition and concentration of peat under different preset spray parameters. 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, thereby obtaining the target fire extinguishing method with the best fire extinguishing effect, providing strong technical support for the prevention and control of forest fires.

[0086] In some embodiments, the mode determination unit 1006 is specifically configured to: According to each temperature change curve, determine the temperature change of the actual temperature under each preset spray parameter, and the spraying time when the preset temperature is reached; According to each humidity change curve, determine the humidity change amount of the actual humidity under each preset spray parameter; According to each gas concentration change curve, determine the gas concentration change amount during the smoldering process of the combustion object under each preset spray parameter; The target fire extinguishing method is determined based on the temperature change, spraying time, humidity change and gas concentration change under each preset spraying parameter.

[0087] In some embodiments, the preset spray parameters include spray flow rate, fire extinguishing agent density and spray angle, and the mode determination unit 1006 is further used to: Obtain the combustion heat information of the combustion object, and determine the combination information of the spray flow rate, the density of the fire extinguishing agent and the spray angle according to the combustion heat information, the temperature change and the spraying time; The combined information is screened according to the temperature change, humidity change and gas concentration change to obtain target combined information, and the spray flow, extinguishing agent density and spray angle in the target combined information are determined as the target fire extinguishing method.

[0088] In some embodiments, the method determination unit 1006 is further specifically used to: determine the combination information that the temperature change satisfies the preset temperature condition, the humidity change satisfies the preset humidity condition, and the gas concentration change satisfies the preset concentration condition as the target combination information.

[0089] In some embodiments, the device may further include a type adjustment unit and a mode adjustment unit (not shown in the figure).

[0090] A type adjustment unit is used to 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; The mode adjustment unit is used to 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 mode according to the target fire extinguishing agent.

[0091] In some embodiments, the device may further include a peat adjustment unit and a fire extinguishing adjustment unit (not shown in the figure): The combustion material adjustment unit is used to adjust the physical parameters of the combustion material, 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 spray parameter under each physical parameter; The fire extinguishing adjustment unit is used to determine the target fire extinguishing mode 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 physical parameter under each preset spray parameter.

[0092] In some embodiments, the device may also include a consumption acquisition unit (not shown in the figure) for acquiring the fire extinguishing agent consumption when the actual temperature is less than or equal to the preset temperature under each preset spray parameter, and adjusting the target fire extinguishing method according to the fire extinguishing agent consumption.

[0093] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the embodiment of the method for determining the fire extinguishing method for the smoldering test in the present application. Their specific functions and technical effects can be found in the embodiment of the method for determining the fire extinguishing method for the smoldering test, and will not be repeated here.

[0094] See also Fig.11 , Fig.11 1 is a structural block diagram of a server 1100 provided in an embodiment of the present application. The server 1100 in this embodiment includes: at least one processor 1101 ( Fig.11 Only one processor is shown in the figure), 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, the steps in the above-mentioned embodiments of the method for determining a fire extinguishing mode for a smoldering test are implemented. When the processor 1101 executes the computer program 1103, the functions of the modules / units in the above-mentioned device embodiments are implemented, for example, Fig.10 The functions of the spray starting unit 1001 to the mode determination unit 1006 are shown.

[0095] Exemplarily, the computer program 1103 can be divided into one or more units, one or more units are stored in the memory 1102, and are executed by the processor 1101 to complete the present application. One or more units can be a series of computer program instruction segments that can complete specific functions, and the 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 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 repeated here.

[0096] The server 1100 may 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 will appreciate that Fig.11 It is only an example of server 1100 and does not constitute a limitation of server 1100. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the server may also include input and output devices, network access devices, buses, etc.

[0097] The processor 1101 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0098] The memory 1102 may be an internal storage unit of the server 1100, such as a hard disk or memory of the server 1100. The memory 1102 may also be an external storage device of the server 1100, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card (FlashCard), etc. equipped on the server 1100. Optionally, the memory 1102 may also include both an internal storage unit of the server 1100 and an 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 may also be used to temporarily store data that has been output or is to be output.

[0099] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0100] 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, the present application implements all or part of the processes in the above-mentioned embodiment method, and the computer program that can be completed by instructing the relevant hardware through a computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device that can carry computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained 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 electric carrier signals and telecommunication signals.

[0101] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0102] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for determining a fire extinguishing mode in a smoldering test, characterized in that: The fire extinguishing method determination method is based on extinguishing fire by a fire extinguishing system, wherein the fire extinguishing system includes a sprinkler fire extinguishing system, and the method includes: Ignite the combustibles in the burner and make them smolder, and control the sprinkler head to spray and extinguish the combustibles in the smoldering process according to preset sprinkler parameters; Recording the actual temperature and humidity of the combustion object in real time; Real-time detection of target gas components generated by the combustion material during the smoldering process and the spraying fire extinguishing process, as well as actual gas concentrations corresponding to the target gas components; When the actual temperature is greater than the preset temperature, the sprinkler head is controlled to continue to spray and extinguish the fire; and when the actual temperature is less than or equal to the preset temperature, the sprinkler head is controlled to stop spraying and extinguishing the fire, and a temperature change curve of the actual temperature over time, a humidity change curve of the actual humidity over time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas component over time are plotted; Adjust the preset spray parameters, repeat the smoldering test, and obtain the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each of the preset spray parameters; The target fire extinguishing method is determined according to the temperature change curve, the humidity change curve and the gas concentration change curve respectively corresponding to each of the preset spray parameters.

2. The method for determining the fire extinguishing mode of the smoldering test according to claim 1, characterized in that: The determining of the target fire extinguishing mode according to the temperature change curve, the humidity change curve and the gas concentration change curve respectively corresponding to each of the preset spray parameters includes: According to each of the temperature change curves, determine the temperature change of the actual temperature under each of the preset spray parameters, and the spraying time when the preset temperature is reached; According to each of the humidity change curves, determining the humidity change amount of the actual humidity under each of the preset spray parameters; According to each of the gas concentration change curves, determining the gas concentration change amount during the smoldering process of the combustion object under each of the preset spray parameters; The target fire extinguishing method is determined according to the temperature change, the spraying time, the humidity change and the gas concentration change under each of the preset spraying parameters.

3. The method for determining the fire extinguishing mode of the smoldering test according to claim 2, characterized in that: The preset spray parameters include spray flow rate, fire extinguishing agent density and spray angle, and the determination of the target fire extinguishing method includes: Obtaining combustion heat information of the combustion object, and determining combined information of the spray flow rate, the fire extinguishing agent density and the spray angle according to the combustion heat information, the temperature change and the spraying duration; The combination information is screened according to the temperature change, the humidity change and the gas concentration change to obtain target combination information, and the spray flow rate, the fire extinguishing agent density and the spray angle in the target combination information are determined as the target fire extinguishing method.

4. The method for determining the fire extinguishing mode of the smoldering test according to claim 3, characterized in that: The step of screening the combination information according to the temperature change, the humidity change, and the gas concentration change to obtain target combination information includes: The combined information in which the temperature change satisfies a preset temperature condition, the humidity change satisfies a preset humidity condition, and the gas concentration change satisfies a preset concentration condition is determined as the target combined information.

5. The method for determining the fire extinguishing mode of the smoldering test according to claim 3, characterized in that: The method further comprises: Adjust the type of fire extinguishing agent sprayed by the sprinkler head, repeat the smoldering test, and determine the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each type of fire extinguishing agent; A target fire extinguishing agent is determined according to the temperature change curve, the humidity change curve and the gas concentration change curve respectively corresponding to each type of the fire extinguishing agent, and the target fire extinguishing method is adjusted according to the target fire extinguishing agent.

6. The method for determining the fire extinguishing mode of the smoldering test according to claim 5, characterized in that: The method further comprises: Adjust the physical parameters of the combustion object, repeat the smoldering test, and determine the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each type of the fire extinguishing agent under each of the preset spray parameters under each of the physical parameters; According to the temperature change curve, the humidity change curve and the gas concentration change curve corresponding to each type of the fire extinguishing agent under each of the physical parameters under each of the preset spray parameters, the target fire extinguishing method corresponding to each of the physical parameters is determined.

7. The method for determining the fire extinguishing mode of the smoldering test according to claim 5, characterized in that: The method further comprises: The fire extinguishing agent consumption when the actual temperature is less than or equal to the preset temperature under each of the preset spray parameters is obtained, and the target fire extinguishing mode is adjusted according to the fire extinguishing agent consumption.

8. A fire extinguishing method determination device for a smoldering test, the fire extinguishing method determination device extinguishing a fire based on a fire extinguishing system, the fire extinguishing system including a sprinkler fire extinguishing system, the device comprising: A spray start unit is used to ignite the combustibles in the burner and put them into a smoldering state, and control the spray head to spray and extinguish the combustibles in the smoldering process according to preset spray parameters; A parameter recording unit, used for recording the actual temperature and actual humidity of the combustion object in real time; A gas detection unit, used for real-time detection of target gas components generated by the combustion material during the smoldering process and the spraying fire extinguishing process, and actual gas concentrations corresponding to the target gas components; A curve drawing unit, used to control the sprinkler head to continue to spray and extinguish the fire when the actual temperature is greater than the preset temperature; and to control the sprinkler head to stop spraying and extinguishing the fire when the actual temperature is less than or equal to the preset temperature, and to draw a temperature change curve of the actual temperature over time, a humidity change curve of the actual humidity over time, and a gas concentration change curve of the actual gas concentration corresponding to the target gas component over time; A spray adjustment unit, used for adjusting the preset spray parameters, repeating the smoldering test, and obtaining the temperature change curve, the humidity change curve, and the gas concentration change curve corresponding to each of the preset spray parameters; The method determination unit is used to 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 of the preset spray parameters.

9. 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, the method for determining the fire extinguishing mode of the smoldering test according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for determining the fire extinguishing mode of the smoldering test according to any one of claims 1 to 7 is implemented.

Images