Rapid decompression method and system based on emergency cloud response

Abstract

The application relates to the field of pressure relief control of an electric pressure cooker, and discloses a rapid pressure relief method and system based on emergency event cloud response, which comprises the following steps: obtaining working parameter information of the electric pressure cooker, and determining first-level working parameters, second-level working parameters and third-level working parameters in the working parameter information; when the first-level working parameters meet first-level pressure relief conditions, performing pressure relief on the electric pressure cooker through first-level pressure relief operation, and transmitting the second-level working parameters to an edge computing unit; detecting the second-level working parameters through the edge computing unit, and when the second-level working parameters meet second-level pressure relief conditions, performing pressure relief on the electric pressure cooker through second-level pressure relief operation, and transmitting third-level working parameters to a cloud processing unit; detecting the third-level working parameters through the cloud processing unit, and when the third-level working parameters meet third-level pressure relief conditions, performing pressure relief on the electric pressure cooker through third-level pressure relief operation. The application can improve the comprehensive solution effect of the electric pressure cooker on pressure runaway events.

Description

Technical Field

[0001] This application relates to the field of pressure relief control technology for electric pressure cookers, and more specifically, to a rapid pressure relief method and system based on emergency event cloud response. Background Technology

[0002] Traditional electric pressure cookers rely on a single sensor and a mechanical safety valve working together for pressure control, which introduces systemic risks. For example, the pressure control system may misjudge pressure thresholds due to sensor drift, thermostat failure, or circuit aging, making traditional PID pressure control algorithms ill-suited to the non-linear pressure changes in electric pressure cookers. Furthermore, existing pressure relief mechanisms often use fixed-aperture exhaust valves, which are limited in pressure relief rate and sluggish in response to sudden situations such as blocked exhaust channels or food residue buildup, failing to meet the dynamic pressure regulation needs under emergency conditions. In addition, structural integrity degradation caused by long-term use, such as mechanical fatigue and aging of seals, further exacerbates the risk of pressure runaway.

[0003] Current electric pressure cooker pressure control technology is insufficient in responding to complex faults such as human error and lacks intelligent safety redundancy design. Most electric pressure cookers on the market employ passive protection strategies, lacking proactive prevention mechanisms for human errors such as overfilling with water or mistakenly adding easily expanding ingredients. Furthermore, while multi-sensor fusion schemes have been proposed in current electric pressure cooker control technology, there are still technological gaps in real-time data processing, cloud-edge collaborative decision-making, and self-repair mechanisms. This results in poor overall performance in handling pressure runaway events, hindering the improvement of electric pressure cookers' safety performance under complex operating conditions. Summary of the Invention

[0004] The purpose of this application is to provide a rapid pressure relief method and system based on emergency event cloud response, which solves the technical problem that electric pressure cookers have poor overall performance in dealing with pressure runaway events, and achieves the technical effect of improving the overall performance of electric pressure cookers in dealing with pressure runaway events.

[0005] This application provides a rapid pressure relief method based on cloud response to emergency events. The method includes: acquiring the operating parameter information of an electric pressure cooker and determining the primary, secondary, and tertiary operating parameters in the operating parameter information; wherein the primary operating parameters include the time-series pressure value of the electric pressure cooker, the secondary operating parameters include the water volume and food information of the electric pressure cooker, and the tertiary operating parameters include the pressure relief rate value of the electric pressure cooker; when the primary operating parameters meet the primary pressure relief conditions, the electric pressure cooker is depressurized through a primary pressure relief operation, and the secondary operating parameters are transmitted to an edge computing unit; the edge computing unit detects the secondary operating parameters, and when the secondary operating parameters meet the secondary pressure relief conditions, the electric pressure cooker is depressurized through a secondary pressure relief operation, and the tertiary operating parameters are sent to a cloud processing unit; the cloud processing unit detects the tertiary operating parameters, and when the tertiary operating parameters meet the tertiary pressure relief conditions, the electric pressure cooker is depressurized through a tertiary pressure relief operation; wherein the edge computing unit is located in the electric pressure cooker, and the pressure relief rates of the primary, secondary, and tertiary pressure relief operations increase sequentially.

[0006] In one possible implementation, the first-level pressure relief condition includes a pressure increase rate greater than or equal to a preset pressure increase rate; the second-level pressure relief condition includes a water volume in the electric pressure cooker greater than or equal to a preset water volume, and the food information being preset food information; the third-level pressure relief condition includes a pressure relief rate value less than a preset pressure relief rate value. The method further includes: determining a first weight corresponding to the first-level pressure relief condition and a second weight corresponding to the second-level pressure relief condition based on the pressure increase rate, the water volume in the electric pressure cooker, and the food information using a pressure relief rate decision model; when the first weight is greater than or equal to the second weight... Furthermore, when the primary operating parameters meet the primary pressure relief condition, the electric pressure cooker is depressurized through the primary pressure relief operation, and the secondary operating parameters are transmitted to the edge computing unit. The edge computing unit detects the secondary operating parameters, and when the secondary operating parameters meet the secondary pressure relief condition, the electric pressure cooker is depressurized through the secondary pressure relief operation, and the tertiary operating parameters are sent to the cloud processing unit. When the first weight is less than the second weight, and when the primary operating parameters meet the primary pressure relief condition, the electric pressure cooker is depressurized through the secondary pressure relief operation, and the tertiary operating parameters are sent to the cloud processing unit.

[0007] In another possible implementation, the method further includes: counting the number of times the electric pressure cooker performs a secondary pressure relief operation within a preset first time period; when the number of secondary pressure relief operations is greater than or equal to the preset number of secondary pressure relief operations, and the secondary working parameters meet the secondary pressure relief conditions, the electric pressure cooker is depressurized through a tertiary pressure relief operation.

[0008] In another possible implementation, the method further includes: counting the number of times the electric pressure cooker performs the three-stage pressure relief operation within a preset second time period; when the number of three-stage pressure relief operations is greater than or equal to the preset number of three-stage pressure relief operations, issuing a cleaning prompt message to remind the electric pressure cooker to clean its exhaust valve.

[0009] In another possible implementation, the method further includes: obtaining the first moment value of the detection of the secondary working parameters by the edge computing unit, and starting the timer from the first moment value as the edge detection response duration; when the edge detection response duration is greater than or equal to the preset edge detection response duration, obtaining the instructions of the historical secondary pressure relief operation stored in the electric pressure cooker to relieve pressure on the electric pressure cooker.

[0010] In another possible implementation, the method further includes: obtaining the second time value at which the electric pressure cooker sends the three-level operating parameters to the cloud processing unit, and starting the timer from the second time value as the cloud response duration; when the cloud response duration is greater than or equal to the preset cloud response duration, obtaining the instructions of the historical three-level pressure relief operation stored in the electric pressure cooker, and depressurizing the electric pressure cooker through the instructions of the historical three-level pressure relief operation.

[0011] In another possible implementation, the pressure cooker is depressurized by obtaining the historical secondary pressure relief operation instructions stored in the electric pressure cooker. This includes: obtaining the historical water volume and historical food information corresponding to the historical pressure relief operation instructions stored in the electric pressure cooker, and determining the difference between the historical water volume and the actual water volume as the water volume difference; when the water volume difference is less than the preset water volume difference, and the historical food information and the actual food information are the same, the pressure cooker is depressurized by obtaining the historical secondary pressure relief operation instructions stored in the electric pressure cooker.

[0012] In another possible implementation, the method further includes: the preset edge detection response time is 5 to 10 times the preset cloud response time.

[0013] In another possible implementation, the method further includes: when depressurizing the electric pressure cooker through a three-stage depressurization operation, determining the depressurization rate change characteristics of the electric pressure cooker based on the depressurization rate value of the electric pressure cooker; determining the preset water injection volume adjustment value for the second-stage depressurization condition of the electric pressure cooker based on the pressure injection rate change characteristics of the electric pressure cooker; transmitting the preset water injection volume adjustment value for the second-stage depressurization condition to the edge computing unit of the electric pressure cooker; and replacing the preset water injection volume in the second-stage depressurization condition with the preset water injection volume adjustment value.

[0014] This application also provides a rapid pressure relief system based on emergency event cloud response, including a unit for performing the method described in any of the preceding claims.

[0015] The beneficial effects of the embodiments of this application compared with the prior art are:

[0016] This application provides a rapid pressure relief method based on cloud response to emergency events. The method includes: acquiring the operating parameter information of an electric pressure cooker and determining primary, secondary, and tertiary operating parameters within this information; wherein the primary operating parameters include the time-series pressure value of the electric pressure cooker, the secondary operating parameters include the water volume and food information of the electric pressure cooker, and the tertiary operating parameters include the pressure relief rate value of the electric pressure cooker; when the primary operating parameters meet the primary pressure relief conditions, the electric pressure cooker is depressurized through a primary pressure relief operation, and the secondary operating parameters are transmitted to an edge computing unit; the edge computing unit detects the secondary operating parameters, and when the secondary operating parameters meet the secondary pressure relief conditions, the electric pressure cooker is depressurized through a secondary pressure relief operation, and the tertiary operating parameters are sent to a cloud processing unit; the cloud processing unit detects the tertiary operating parameters, and when the tertiary operating parameters meet the tertiary pressure relief conditions, the electric pressure cooker is depressurized through a tertiary pressure relief operation; wherein the edge computing unit is located within the electric pressure cooker, and the pressure relief rates of the primary, secondary, and tertiary pressure relief operations increase sequentially. The control method for the electric pressure cooker in this embodiment can control the pressure release speed of the electric pressure cooker according to different parameters, thereby improving the pressure release control effect. It is suitable for rapid pressure release response under various conditions and improves the pressure release control effect of the electric pressure cooker. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A flowchart illustrating the first rapid pressure relief method based on emergency event cloud response provided in this application embodiment;

[0019] Figure 2 A schematic diagram illustrating the workflow of the first rapid pressure relief method based on emergency event cloud response provided in this application embodiment;

[0020] Figure 3 A flowchart illustrating the second rapid pressure relief method based on emergency event cloud response provided in this application embodiment;

[0021] Figure 4 A flowchart illustrating the third rapid pressure relief method based on emergency event cloud response provided in this application embodiment;

[0022] Figure 5This is a schematic diagram of the logical structure of a rapid pressure relief system based on emergency event cloud response, provided in an embodiment of this application. Detailed Implementation

[0023] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0024] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0025] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0026] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0028] Current electric pressure cooker pressure control technology has a poor overall effect on solving pressure runaway events, which restricts the improvement of the safety performance of electric pressure cookers under complex working conditions.

[0029] Based on the above reasons, this application provides a rapid pressure relief method based on emergency event cloud response. This method includes: acquiring the operating parameter information of an electric pressure cooker, and determining the primary, secondary, and tertiary operating parameters within the operating parameter information; wherein the primary operating parameters include the time-series pressure value of the electric pressure cooker, the secondary operating parameters include the water volume and food information of the electric pressure cooker, and the tertiary operating parameters include the pressure relief rate value of the electric pressure cooker; when the primary operating parameters meet the primary pressure relief condition, the electric pressure cooker is depressurized through the primary pressure relief operation, and the secondary... The operating parameters are transmitted to the edge computing unit. The edge computing unit detects the secondary operating parameters. When the secondary operating parameters meet the secondary pressure relief conditions, the electric pressure cooker is depressurized through a secondary pressure relief operation, and the tertiary operating parameters are sent to the cloud processing unit. The cloud processing unit detects the tertiary operating parameters. When the tertiary operating parameters meet the tertiary pressure relief conditions, the electric pressure cooker is depressurized through a tertiary pressure relief operation. The edge computing unit is located within the electric pressure cooker, and the pressure relief speeds of the primary, secondary, and tertiary pressure relief operations increase sequentially. The electric pressure cooker control method in this embodiment can control the electric pressure cooker to perform different pressure relief speeds according to different parameters, improving the pressure relief control effect. It is suitable for rapid pressure relief response under various conditions, thus improving the pressure relief control effect of the electric pressure cooker.

[0030] In some scenarios, the rapid pressure relief method based on emergency event cloud response of this application embodiment can be applied to the pressure control of electric pressure cookers, especially suitable for the control of electric pressure cookers based on Internet of Things control, which can improve the pressure relief control effect of electric pressure cookers.

[0031] The following describes in detail, with specific examples, a rapid pressure relief method based on emergency event cloud response provided in the embodiments of this application.

[0032] Figure 1 A flowchart illustrating the first rapid pressure relief method based on emergency event cloud response provided in this application embodiment is shown below. Figure 1 As shown, the above method includes S110 to S120, and S110 to S120 will be described in detail below.

[0033] S110. Obtain the operating parameter information of the electric pressure cooker, and determine the primary, secondary, and tertiary operating parameters in the operating parameter information. Among them, the primary operating parameters include the time-series pressure value of the electric pressure cooker, the secondary operating parameters include the water volume and food information of the electric pressure cooker, and the tertiary operating parameters include the pressure release rate value of the electric pressure cooker.

[0034] The electric pressure cooker in this embodiment may include a pot body and a lid. An inner pot is provided inside the pot body, and a heating element is located below the inner pot. A micro-pressure sealing ring is fitted around the outer edge of the lid and at the contact surface with the pot body, forming a sealed space between the pot body and the lid. The lid of the electric pressure cooker is also equipped with an electrically controlled vent valve, and the opening degree of the electrically controlled vent valve can be controlled to control the pressure release rate of the electric pressure cooker. Simultaneously, the electric pressure cooker may also include a control component and a communication component. The control component is used to detect the operating parameters and water volume of the electric pressure cooker, and to collect the food information input by the user. The communication component is used to communicate with a cloud control unit to control the pressure release state of the electric pressure cooker through a motion control component.

[0035] For example, an electric pressure cooker may include a variety of sensors for acquiring operating parameter information of the electric pressure cooker. Specifically, the sensors may include pressure sensors, water level sensors, temperature sensors, etc.

[0036] Figure 2 A schematic diagram illustrating the workflow of the first rapid pressure relief method based on emergency event cloud response provided in this application embodiment is shown below. Figure 2 As shown, in order to control the pressure relief state of the electric pressure cooker, the operating parameter information of the electric pressure cooker can be obtained, and the primary operating parameters, secondary operating parameters, and tertiary operating parameters in the operating parameter information can be determined. The primary operating parameters, secondary operating parameters, and tertiary operating parameters are used to control the different pressure relief states of the electric pressure cooker.

[0037] It should be noted that the primary operating parameters include the sequential pressure value of the electric pressure cooker, which can be obtained from the internal pressure value of the electric pressure cooker through a pressure sensor.

[0038] It should be noted that the secondary operating parameters can include the water volume and ingredient information of the electric pressure cooker. The water volume can be obtained by detecting the water level sensor, and the ingredient information can be obtained by the user entering the corresponding cooking program on the input panel.

[0039] It should be noted that the third-level operating parameters may include the pressure relief rate of the electric pressure cooker, which can be obtained by detecting the pressure change inside the electric pressure cooker.

[0040] S120. When the primary operating parameters meet the primary pressure relief condition, the electric pressure cooker is depressurized through a primary pressure relief operation, and the secondary operating parameters are transmitted to the edge computing unit. The edge computing unit detects the secondary operating parameters, and when the secondary operating parameters meet the secondary pressure relief condition, the electric pressure cooker is depressurized through a secondary pressure relief operation, and the tertiary operating parameters are sent to the cloud processing unit. The cloud processing unit detects the tertiary operating parameters, and when the tertiary operating parameters meet the tertiary pressure relief condition, the electric pressure cooker is depressurized through a tertiary pressure relief operation. The edge computing unit is located within the electric pressure cooker, and the pressure relief speed of the primary, secondary, and tertiary pressure relief operations increases sequentially.

[0041] During pressure relief control, when the primary operating parameters meet the primary pressure relief conditions, it indicates that the electric pressure cooker needs to be initially depressurized. The pressure relief operation is performed on the electric pressure cooker. For example, when the pressure value of the electric pressure cooker at a certain moment in the time-series pressure value of the primary operating parameters exceeds a certain preset time-series pressure threshold, the primary pressure relief operation can be triggered.

[0042] For example, the first-level pressure relief operation can be to open the main pressure relief valve of the electric pressure cooker to relieve pressure.

[0043] like Figure 2 As shown, when depressurizing the electric pressure cooker through the first-level depressurization operation, the second-level operating parameters can be transmitted to the edge computing unit, and the depressurization demand of the electric pressure cooker can be detected through the second-level operating parameters to determine whether further depressurization is required through the second-level depressurization operation corresponding to the second-level operating parameters.

[0044] When pressure relief control is performed after triggering the first-level pressure relief operation, the second-level working parameters can also be detected by the edge computing unit. When the second-level working parameters meet the second-level pressure relief conditions, it means that the electric pressure cooker needs to be further depressurized. The pressure relief can be performed by the second-level pressure relief operation to ensure the pressure relief effect.

[0045] For example, a secondary pressure relief operation can be triggered when there is too much water or when the food information indicates that faster pressure relief is needed.

[0046] For example, the secondary pressure relief operation may include using a semiconductor heat dissipation component to actively cool the electric pressure cooker and rapidly depressurize it.

[0047] like Figure 2 As shown, when depressurizing an electric pressure cooker through a two-stage depressurization operation, the three-stage operating parameters can be sent to the cloud processing unit to determine whether further depressurization is required through a three-stage depressurization operation corresponding to the three-stage operating parameters.

[0048] For example, a three-stage pressure relief operation can be performed by opening the backup vent valve to relieve pressure on the electric pressure cooker, while a two-stage pressure relief operation can be performed by prompting the user to manually open the backup vent valve to relieve pressure on the electric pressure cooker.

[0049] After the pressure cooker is depressurized by triggering the secondary pressure relief operation, the tertiary operating parameters can be detected by the cloud processing unit. When the tertiary operating parameters meet the tertiary pressure relief conditions, the pressure cooker can be depressurized by the tertiary pressure relief operation to ensure the pressure relief effect.

[0050] For example, a three-stage pressure relief operation can be triggered when an emergency pressure relief is required or when a faster pressure relief is predicted based on historical data.

[0051] It should be noted that the pressure relief speed of the first-level, second-level, and third-level pressure relief operations increases sequentially. This sequentially increasing pressure relief speed ensures the pressure relief speed of the electric pressure cooker and guarantees its pressure relief effect.

[0052] It should be noted that the edge computing unit can be set up in the electric pressure cooker to process local data and perform fast-response pressure relief operations.

[0053] It should be noted that the cloud processing unit is used to handle complex data analysis and decision-making, and to perform higher-level pressure relief operations.

[0054] The beneficial effects of the above implementation method are that this rapid pressure relief method based on emergency event cloud response, through a multi-level pressure relief control mechanism, increases the urgency of pressure relief operation from level one, level two and level three in sequence. Combined with edge computing and cloud computing technologies, it realizes rapid, safe and intelligent pressure relief of electric pressure cookers, improves user experience and ensures the safety of electric pressure cooker use.

[0055] In some implementations, in the above S110, the first-level pressure relief condition includes the pressure increase rate of the sequential pressure value being greater than or equal to the preset pressure increase rate; the second-level pressure relief condition includes the water volume of the electric pressure cooker being greater than or equal to the preset water volume, and the food information being the preset food information; and the third-level pressure relief condition includes the pressure relief rate value being less than the preset pressure relief rate value.

[0056] When performing pressure relief control, the first-level pressure relief condition may include the pressure increase rate of the time-series pressure value being greater than or equal to the preset pressure increase rate. Then, when the increase rate of the time-series pressure value is too large, it is determined that pressure relief control needs to be performed on the electric pressure cooker to initially improve the safety protection effect of the electric pressure cooker.

[0057] When performing pressure relief control, the secondary pressure relief conditions may include the water volume of the electric pressure cooker being greater than or equal to the preset water volume, and the food information being the preset food information. The preset food information can be the type of food that requires enhanced pressure relief control. Therefore, if it is determined that the water volume is too large and the food information requires enhanced pressure relief control, the pressure cooker can be further depressurized when the primary pressure relief conditions are met, so as to further depressurize the electric pressure cooker through the secondary pressure relief operation.

[0058] When performing pressure relief control, the three-level pressure relief condition can include a pressure relief rate value that is less than the preset pressure relief rate value. When releasing pressure through the two-level pressure relief operation, the pressure relief rate of the electric pressure cooker may be affected by a malfunction of the electric pressure cooker. Therefore, the pressure relief rate of the electric pressure cooker can be detected to further ensure the pressure relief rate and improve the safety of the electric pressure cooker.

[0059] In some implementations, the above method also includes S130 to S140, which are described in detail below.

[0060] S130. Using the pressure relief rate decision model, determine the first weight corresponding to the first-level pressure relief condition and the second weight corresponding to the second-level pressure relief condition based on the pressure increase rate, the water volume of the electric pressure cooker, and the food information.

[0061] To further improve the pressure relief speed during pressure relief control, the pressure relief speed decision model can be executed by the electric pressure cooker's processor. First, the current pressure increase rate can be obtained through the pressure sensor, the water level sensor can be used to obtain the water volume of the electric pressure cooker, and the food information can be obtained. These parameters can then be synchronously transmitted to the pressure relief speed decision model. The pressure relief speed decision model can generate the first weight corresponding to the first-level pressure relief condition and the second weight corresponding to the second-level pressure relief condition based on preset weight calculation rules. Then, based on the pressure increase rate, the water volume of the electric pressure cooker, and the food information, the urgency of the pressure relief operation can be further determined to improve the pressure relief effect inside the electric pressure cooker.

[0062] For example, the pressure change rate (ΔP / Δt) inside the electric pressure cooker can be monitored in real time by a built-in pressure sensor. Combined with the water volume (V) obtained by the water level sensor and the information on the type of food (e.g., meat, grains, or vegetables) input by the user, a multi-dimensional feature vector is constructed. After normalization, the feature vector is input into the pressure relief speed decision model. A weighted algorithm is used to calculate the first weight (W1) corresponding to the first-level pressure relief condition and the second weight (W2) corresponding to the second-level pressure relief condition, where W1=α1·(ΔP / Δt)+β1·V+γ1·M, W2=α2·(ΔP / Δt)+β2·V+γ2·M, α, β, and γ are preset coefficients, and M is the density matrix value corresponding to the type of food.

[0063] S140. When the first weight is greater than or equal to the second weight, and when the first-level operating parameters meet the first-level pressure relief condition, the electric pressure cooker is depressurized through a first-level pressure relief operation, and the second-level operating parameters are transmitted to the edge computing unit. The edge computing unit detects the second-level operating parameters. When the second-level operating parameters meet the second-level pressure relief condition, the electric pressure cooker is depressurized through a second-level pressure relief operation, and the third-level operating parameters are sent to the cloud processing unit. When the first weight is less than the second weight, and when the first-level operating parameters meet the first-level pressure relief condition, the electric pressure cooker is depressurized through a second-level pressure relief operation, and the third-level operating parameters are sent to the cloud processing unit.

[0064] During pressure relief control, when the processor determines that the first weighting coefficient is greater than or equal to the second weighting coefficient, and when the first-level operating parameters meet the first-level pressure relief condition (i.e., W1 ≥ W2), the system enters a graded pressure relief mode. Specifically, this triggers a first-level pressure relief operation, releasing pressure at a preset pressure relief rate. During the first-level pressure relief operation, the second-level operating parameters can be further transmitted to the edge computing unit for real-time monitoring. The edge computing unit then determines whether a second-level pressure relief operation is necessary to ensure proper pressure relief for the electric pressure cooker.

[0065] During pressure relief control, when the processor determines that the first weighting coefficient is less than the second weighting coefficient, and when the first-level operating parameters meet the first-level pressure relief conditions, the second-level pressure relief operation can be directly triggered. The second-level pressure relief operation can quickly reduce the pressure inside the pot at a preset pressure relief rate.

[0066] It should be noted that regardless of the pressure relief path used, when the pressure inside the pot drops to the safe threshold, the processor can close all pressure relief valves through the actuator and enter the pressure holding cooking stage. The edge computing unit continuously monitors the pressure stability during the pressure holding stage. When it detects that the pressure fluctuation exceeds the allowable range, it can further automatically initiate a secondary pressure relief operation to release pressure.

[0067] The beneficial effect of the above implementation method is that by further judging the urgency of the pressure relief operation based on the pressure increase rate, the amount of water added to the electric pressure cooker and the information of the ingredients, and when the primary working parameters meet the primary pressure relief conditions, the pressure cooker is depressurized according to the primary pressure relief operation or the secondary pressure relief operation, which can improve the pressure relief effect inside the electric pressure cooker.

[0068] In some implementations, the above method also includes S150 to S160, which are described in detail below.

[0069] S150: Count the number of times the electric pressure cooker performs the secondary pressure relief operation within the preset first time period.

[0070] In pressure relief control, the timer built into the electric pressure cooker control module can be used to count in real time the number of secondary pressure relief operations N performed within a preset first time period (e.g., a 30-minute cooking cycle). The count of secondary pressure relief operations is based on the timestamp data in the pressure relief event log. Each time a secondary pressure relief operation is triggered, the event time and the corresponding pressure parameters (e.g., pressure relief rate and termination pressure value) can be recorded in the memory.

[0071] For example, the preset first time period can be dynamically adjusted according to the type of ingredients (e.g., meat cooking time is extended to 45 minutes, while porridge cooking time is shortened to 20 minutes).

[0072] S160. When the number of secondary pressure relief operations is greater than or equal to the preset number of secondary pressure relief operations, and the secondary working parameters meet the secondary pressure relief conditions, the electric pressure cooker is depressurized through the tertiary pressure relief operation.

[0073] In pressure relief control, when the number of secondary pressure reliefs N reaches or exceeds the preset number of secondary pressure reliefs (e.g., N≥3 times), it indicates that the number of secondary pressure reliefs is too high and the electric pressure cooker may have a pressure relief fault. If the currently collected secondary working parameters simultaneously meet the secondary pressure relief conditions, it means that the secondary pressure relief operation needs to be performed again. The electric pressure cooker can automatically activate the tertiary pressure relief operation to improve the pressure relief speed of the electric pressure cooker.

[0074] For example, the preset number of secondary pressure relief operations can also be negatively correlated with the pressure vessel volume (e.g., N=2 times for a 5L vessel and N=4 times for a 3L vessel). The execution log of the tertiary pressure relief operation can also be linked to the device's unique identifier, and the cloud server can build a cross-device pressure relief fault knowledge graph based on this.

[0075] The beneficial effect of the above implementation method is that when the number of secondary pressure relief operations is too large within the preset first time period and the electric pressure cooker may have a pressure relief failure, a tertiary pressure relief operation can be performed on the electric pressure cooker to quickly relieve pressure when a secondary pressure relief operation is required in the future, thereby improving the pressure relief protection effect of the electric pressure cooker.

[0076] In some implementations, the above method also includes S170 to S180, which will be explained in detail below.

[0077] S170. Count the number of times the electric pressure cooker performs the three-level pressure relief operation within the preset second time period.

[0078] In pressure relief control, the pressure relief event recording unit of the electric pressure cooker control module can also be used to count in real time the number of three-level pressure relief operations K triggered within a preset second time period (e.g., within 7 consecutive cooking cycles or a cumulative 12 hours of operation). The statistics can be based on the pressure relief operation log, and each log contains a timestamp, pressure relief duration and peak pressure data.

[0079] S180. When the number of three-stage pressure relief cycles is greater than or equal to the preset number of three-stage pressure relief cycles, a cleaning prompt message is issued to remind the electric pressure cooker to clean its exhaust valve.

[0080] In the pressure relief control, when the cumulative number of times K is detected to reach or exceed a preset threshold (e.g., K≥5 times), the system can trigger a cleaning prompt message to remind the user to clean the electric pressure cooker.

[0081] For example, the cleaning prompt information can include a tiered alarm strategy. The primary alarm is indicated by the LED indicator on the pot body flashing orange and a voice prompt "It is recommended to clean the exhaust valve". If no cleaning operation is performed within 72 hours and the number of three-stage pressure releases is still high (the number of three-stage pressure releases K is still greater than 2 times / cooking cycle), it is upgraded to an emergency alarm, triggering the device status lock function, restricting the start of the high-pressure cooking mode, and at the same time pushing a strong reminder notification containing a cleaning tutorial video to the user's mobile APP through the wireless communication module.

[0082] The beneficial effect of the above implementation method is that by counting the number of times the electric pressure cooker performs the three-stage pressure relief operation within a preset second time period, when the number of three-stage pressure relief operations exceeds the threshold, a cleaning prompt message is issued to remind the user to clean the exhaust valve of the electric pressure cooker, thereby further improving the safety of the electric pressure cooker during use.

[0083] Figure 3 A flowchart illustrating the second rapid pressure relief method based on emergency event cloud response provided in this application embodiment is shown below. Figure 3 As shown, the above method also includes S210 to S220, which will be described in detail below.

[0084] S210. Obtain the first moment value of the detection of the secondary working parameters by the edge computing unit, and start timing from the first moment value as the edge detection response time.

[0085] To improve the response speed of pressure relief control, the clock chip built into the edge computing unit can record the first moment value T1 when it receives the secondary working parameter detection command, and start a timer to accumulate the edge detection response time Δt. The edge detection response time represents the judgment time of the edge computing unit to determine whether a secondary pressure relief operation is needed.

[0086] S220. When the edge detection response time is greater than or equal to the preset edge detection response time, obtain the instructions of the historical secondary pressure relief operation stored in the electric pressure cooker and depressurize the electric pressure cooker.

[0087] During the pressure relief judgment process, when the edge detection response time Δt reaches or exceeds the preset edge detection response time threshold (e.g., Δt≥5s), it indicates that the time taken by the edge computing unit to determine whether a secondary pressure relief operation is required is too long, which may cause the pressure of the electric pressure cooker to be not released in time and thus pose a danger. At this time, the historical instruction recall mechanism can be triggered to retrieve the historical secondary pressure relief operation instructions stored in the electric pressure cooker from the non-volatile memory of the electric pressure cooker to relieve the pressure.

[0088] For example, when depressurizing an electric pressure cooker using historical secondary pressure relief operation instructions, the most recent N (e.g., N=5) historical secondary pressure relief operation instruction sets can be obtained. These historical secondary pressure relief operation instruction sets include pressure relief rate settings, valve opening curves, and corresponding pressure safety margin parameters.

[0089] After obtaining the historical set of secondary pressure relief operation instructions, the electric pressure cooker can use a dynamic priority algorithm to filter out valid instructions and historical records of secondary pressure relief operations where the current water volume of the electric pressure cooker exceeds 10%. Then, based on a similarity model, it matches the current pressure change pattern and selects the historical instruction of the secondary pressure relief operation with the highest matching degree for pressure relief.

[0090] For example, the preset edge detection response time can be dynamically adjusted according to the working mode of the electric pressure cooker, set to 5 seconds during the high-pressure cooking stage and extended to 10 seconds during the heat preservation stage.

[0091] For example, historical secondary pressure relief operations can employ a rolling update mechanism to retain valid data from the most recent 30 days and automatically discard historical secondary pressure relief operations with a matching success rate of less than 60%.

[0092] The beneficial effect of the above implementation method is that it can determine whether the time for determining whether a secondary pressure relief operation is needed through the edge computing unit is too long, thereby avoiding the danger caused by the pressure of the electric pressure cooker not being released in time, and improving the pressure relief speed of the electric pressure cooker.

[0093] In some implementations, the above method also includes S230 to S240, which are described in detail below.

[0094] S230: Obtain the second time value at which the electric pressure cooker sends the three-level working parameters to the cloud processing unit, and start timing from the second time value as the cloud response time.

[0095] In the pressure relief control of the electric pressure cooker, the second time value T2 can be recorded by the timestamp recording unit of the electric pressure cooker communication module when the third-level working parameters are successfully sent to the cloud processing unit, and the timer is started to accumulate the cloud response duration Δtc. The cloud response duration Δtc represents the length of time that the cloud processing unit takes to determine whether the electric pressure cooker needs to perform a third-level pressure relief operation.

[0096] S240. When the cloud response time is greater than or equal to the preset cloud response time, obtain the instructions of the historical three-level pressure relief operation stored in the electric pressure cooker, and depressurize the electric pressure cooker according to the instructions of the historical three-level pressure relief operation.

[0097] When detecting the cloud response time, if the cloud response time Δtc reaches or exceeds the preset cloud response time (e.g., Δtc≥8s), it indicates that the cloud processing unit takes too long to determine whether the electric pressure cooker needs to perform a three-level pressure relief operation. Then, it can retrieve the most recent M (e.g., M=3) valid historical three-level pressure relief operation instructions from the electric pressure cooker's local non-volatile memory, and perform pressure relief on the electric pressure cooker using the historical three-level pressure relief operation instructions.

[0098] For example, when retrieving historical three-level pressure relief operation instructions stored in the electric pressure cooker, the system can filter applicable instructions through a spatiotemporal similarity algorithm. First, it can exclude historical records with ambient temperature differences exceeding ±5℃. Then, based on the dynamic time warping (DTW) algorithm, it matches the current pressure curve shape and selects the historical three-level pressure relief operation instruction with the smallest matching error to depressurize the electric pressure cooker.

[0099] For example, the preset cloud response time can be dynamically adjusted according to network quality, set to 8s in a 5G network environment and extended to 12s in a 4G environment.

[0100] The beneficial effect of the above implementation method is that when the cloud processing unit takes too long to determine whether the electric pressure cooker needs to perform a three-level pressure relief operation, the pressure can be relieved by using historically stored three-level pressure relief operations, thereby improving the pressure relief safety of the electric pressure cooker.

[0101] In some implementations, the above-mentioned S220 involves obtaining the instruction for the historical secondary pressure relief operation stored in the electric pressure cooker to relieve pressure on the electric pressure cooker, including S221 to S222. S221 to S222 will be explained in detail below.

[0102] S221. Obtain the historical water volume and historical food information corresponding to the historical pressure relief operation instructions stored in the electric pressure cooker, and determine the difference between the historical water volume and the water volume as the water volume difference.

[0103] When depressurizing an electric pressure cooker by retrieving historical secondary pressure relief operation instructions stored in its database, the pressure cooker control module can access the locally stored historical secondary pressure relief instruction database to extract historical operation records associated with the current pressure relief task.

[0104] When performing pressure relief control, the historical water volume Vhist corresponding to the historical pressure relief operation instructions stored in the electric pressure cooker can be obtained, as well as the historical food type code Mhist corresponding to the historical food information. At the same time, the water volume can be obtained as the water volume Vcurr obtained through the water level sensor, and then the water volume difference ΔV=|Vhist -Vcurr| can be calculated.

[0105] S222. When the difference in water volume is less than the preset difference in water volume, and the historical food information and the food information are the same, the electric pressure cooker is depressurized by the instruction of the historical secondary pressure relief operation stored in the electric pressure cooker.

[0106] After obtaining the difference in water volume, if the difference in water volume is less than the preset difference in water volume (e.g., ΔV=±100ml or 5% volume ratio), it indicates that the difference between the water volume in the electric pressure cooker and the historical water volume is small. Furthermore, if the historical food information and the food information are the same, it indicates that the pressure characteristics corresponding to the historical food information are similar. Therefore, the electric pressure cooker can be depressurized by using the historical secondary pressure relief operation instructions stored in the electric pressure cooker.

[0107] The beneficial effect of the above implementation method is that the difference between the water volume in the electric pressure cooker and the historical water volume is small, and when the historical food information and the food information are the same, it indicates that the pressure characteristics in the electric pressure cooker are similar. Therefore, the electric pressure cooker can be depressurized by using the historical secondary pressure relief operation instructions stored in the electric pressure cooker, thereby improving the accuracy of the judgment of depressurization by using the historical secondary pressure relief operation.

[0108] In some implementations, the above method also includes: the preset edge detection response time is 5 to 10 times the preset cloud response time.

[0109] When controlling the pressure of an electric pressure cooker, the preset edge detection response time can be controlled to be 5 to 10 times the preset cloud response time. This makes the response speed of releasing pressure on the electric pressure cooker through the historical three-level pressure release operation greater than the response speed of releasing pressure on the electric pressure cooker through the historical two-level pressure release operation, thereby improving the speed of releasing pressure on the electric pressure cooker in more urgent situations.

[0110] For example, the preset cloud response time can be 8 seconds, and the preset edge detection response time can be 1 second.

[0111] The beneficial effect of the above implementation method is that the response speed of releasing pressure on the electric pressure cooker through the historical three-level pressure release operation is greater than that of releasing pressure on the electric pressure cooker through the historical two-level pressure release operation, thus ensuring the pressure release safety of the electric pressure cooker in emergency situations.

[0112] Figure 4 A flowchart illustrating the third rapid pressure relief method based on emergency event cloud response provided in this application embodiment is shown below. Figure 4 As shown, the above method also includes S310 to S320, which will be described in detail below.

[0113] S310. When depressurizing the electric pressure cooker through a three-stage depressurization operation, determine the depressurization rate change characteristics of the electric pressure cooker based on the depressurization rate value of the electric pressure cooker.

[0114] During the three-stage pressure relief operation, the pressure relief velocity value v(t) can be collected in real time by a high-frequency pressure sensor and processed in the time domain. The pressure relief process is divided into N time windows (e.g., each window is 3 seconds). Within each window, the mean value vavg, variance σ², and rate of change dv / dt of the pressure relief velocity are calculated to construct the pressure relief velocity change feature vector F=[vavg, σ², dv / dt]. The wavelet packet transform algorithm is used to extract the energy distribution characteristics of each frequency band. Combined with the preset pressure relief stage division criteria (e.g., initial descent period, steady period, and tail period), a three-dimensional feature map characterizing the current pressure relief dynamic characteristics is generated.

[0115] S320. Based on the pressure relief rate variation characteristics of the electric pressure cooker, determine the preset water injection adjustment value for the secondary pressure relief condition of the electric pressure cooker, transmit the preset water injection adjustment value for the secondary pressure relief condition to the edge computing unit of the electric pressure cooker, and replace the preset water injection value in the secondary pressure relief condition with the preset water injection adjustment value.

[0116] After obtaining the characteristics of the depressurization rate change, the water injection adjustment value ΔVadj under the secondary depressurization condition can be calculated using a pre-trained random forest regression model. The model input includes the current depressurization rate feature vector F, and the formula for calculating the output water injection adjustment value ΔVadj can be: ΔVadj=α·vavg + β·(σ² / τ) + γ·Tenv, where α, β, and γ represent the model weight parameters, τ represents the time window length, and Tenv represents the measured value of the ambient temperature sensor.

[0117] For example, the adjusted preset water injection volume can be calculated using the following formula: Vnew = Vorig ± ΔVadj, where Vorig represents the preset water injection volume before adjustment, and Vnew represents the preset water injection volume adjustment value.

[0118] The beneficial effect of the above implementation method is that when depressurizing the electric pressure cooker through the three-stage depressurization operation, the preset water injection adjustment value of the second-stage depressurization condition is determined according to the pressure release rate change characteristics of the electric pressure cooker. This realizes the adjustment of the preset water injection in the second-stage depressurization condition according to the three-stage depressurization operation, and can depressurize in advance through the second-stage depressurization operation before the three-stage depressurization operation, further improving the pressure release safety of the electric pressure cooker.

[0119] This application also provides a rapid pressure relief system based on emergency event cloud response, including a unit for performing the method described in any of the preceding claims.

[0120] Figure 5 A schematic diagram of the logical structure of a rapid pressure relief system based on emergency event cloud response provided in this application embodiment is shown below. Figure 5 As shown, the system 1 of this embodiment includes a processing unit 11, a storage unit 12, and a transceiver unit 13. The processing unit 11 is used to process data, the storage unit 12 is used to store data, and the transceiver unit 13 is used to send and receive data. The processing unit 11, the storage unit 12, and the transceiver unit 13 cooperate with each other to implement the above-described method. The beneficial effects of the embodiments of this application have been described in the above-described method and will not be repeated here.

[0121] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0122] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0123] If the integrated unit is implemented as 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, all or part of the processes in the methods of the above embodiments of this application can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a photographing device / terminal device, a recording medium, 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. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electrical carrier signals or telecommunication signals.

[0124] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0125] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0126] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0127] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0128] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A rapid pressure relief method based on emergency event cloud response, characterized in that, The method includes: Obtain the operating parameter information of the electric pressure cooker, and determine the primary, secondary, and tertiary operating parameters in the operating parameter information; wherein, the primary operating parameters include the time-series pressure value of the electric pressure cooker, the secondary operating parameters include the water volume and food information of the electric pressure cooker, and the tertiary operating parameters include the pressure release rate of the electric pressure cooker. When the primary operating parameters meet the primary pressure relief condition, the electric pressure cooker is depressurized through a primary pressure relief operation, and the secondary operating parameters are transmitted to the edge computing unit. The edge computing unit detects the secondary operating parameters, and when the secondary operating parameters meet the secondary pressure relief condition, the electric pressure cooker is depressurized through a secondary pressure relief operation, and the tertiary operating parameters are sent to the cloud processing unit. The cloud processing unit detects the tertiary operating parameters, and when the tertiary operating parameters meet the tertiary pressure relief condition, the electric pressure cooker is depressurized through a tertiary pressure relief operation. The edge computing unit is located inside the electric pressure cooker, and the pressure relief speed of the primary, secondary, and tertiary pressure relief operations increases sequentially. Count the number of times the electric pressure cooker performs a secondary pressure relief operation within a preset first time period; When the number of secondary pressure relief operations is greater than or equal to the preset number of secondary pressure relief operations, and the secondary operating parameters meet the secondary pressure relief conditions, the electric pressure cooker is depressurized through the tertiary pressure relief operation.

2. The method as described in claim 1, characterized in that, The first-level pressure relief condition includes a pressure increase rate greater than or equal to a preset pressure increase rate; the second-level pressure relief condition includes a water volume in the electric pressure cooker greater than or equal to a preset water volume, and the food information is the preset food information; the third-level pressure relief condition includes a pressure relief rate value less than a preset pressure relief rate value. The method further includes: The pressure relief rate decision model determines the first weight corresponding to the first-level pressure relief condition and the second weight corresponding to the second-level pressure relief condition based on the pressure increase rate, the water volume of the electric pressure cooker, and the food information. When the first weight is greater than or equal to the second weight, and when the first-level operating parameters meet the first-level pressure relief condition, the electric pressure cooker is depressurized through the first-level pressure relief operation, and the second-level operating parameters are transmitted to the edge computing unit. The edge computing unit detects the second-level operating parameters, and when the second-level operating parameters meet the second-level pressure relief condition, the electric pressure cooker is depressurized through the second-level pressure relief operation, and the third-level operating parameters are sent to the cloud processing unit. When the first weight is less than the second weight, and when the first-level operating parameters meet the first-level pressure relief condition, the electric pressure cooker is depressurized through the second-level pressure relief operation, and the third-level operating parameters are sent to the cloud processing unit.

3. The method as described in claim 2, characterized in that, The method further includes: The number of times the electric pressure cooker performs a three-stage pressure release operation within a preset second time period is recorded. When the number of three-stage pressure relief cycles is greater than or equal to the preset number of three-stage pressure relief cycles, a cleaning prompt message is issued to remind the electric pressure cooker to clean its exhaust valve.

4. The method as described in claim 3, characterized in that, The method further includes: The first moment value of the detection of the secondary working parameters by the edge computing unit is obtained, and the timing is started from the first moment value as the edge detection response time; When the edge detection response time is greater than or equal to the preset edge detection response time, the instructions of the historical secondary pressure relief operation stored in the electric pressure cooker are obtained to relieve the pressure in the electric pressure cooker.

5. The method as described in claim 4, characterized in that, The method further includes: The second time value at which the electric pressure cooker sends the three-level working parameters to the cloud processing unit is obtained, and the timer starts from the second time value as the cloud response time. When the cloud response time is greater than or equal to the preset cloud response time, the instructions of the historical three-level pressure relief operation stored in the electric pressure cooker are obtained, and the pressure is relieved by the instructions of the historical three-level pressure relief operation.

6. The method as described in claim 5, characterized in that, Retrieve instructions from the stored historical secondary pressure relief operations of the electric pressure cooker to relieve pressure, including: Obtain the historical water volume and historical food information corresponding to the historical pressure relief operation instructions stored in the electric pressure cooker, and determine the difference between the historical water volume and the actual water volume, as the water volume difference value; When the difference in water volume is less than the preset difference in water volume, and the historical food information and the food information are the same, the electric pressure cooker is depressurized by the instruction of the historical secondary pressure relief operation stored in the electric pressure cooker.

7. The method as described in claim 6, characterized in that, The method further includes: The preset edge detection response time is 5 to 10 times the preset cloud response time.

8. The method as described in claim 7, characterized in that, The method further includes: When depressurizing an electric pressure cooker using a three-stage depressurization process, the characteristics of the pressure release rate change are determined based on the pressure release rate value of the electric pressure cooker. Based on the pressure relief rate variation characteristics of the electric pressure cooker, the preset water injection adjustment value for the secondary pressure relief condition is determined, and the preset water injection adjustment value for the secondary pressure relief condition is transmitted to the edge computing unit of the electric pressure cooker. The preset water injection amount in the secondary pressure relief condition is replaced by the preset water injection adjustment value.

9. A rapid pressure relief system based on emergency event cloud response, characterized in that, Includes a unit for performing the method according to any one of claims 1 to 8.

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