Sterilization control method, system and storage medium for sterilizer

Abstract

The present invention provides a sterilization control method, system and storage medium for a sterilizer, which divides the sterilization process into four stages: preheating, pressure regulation, sterilization and drying. In the preheating stage, the water addition time is dynamically adjusted to improve the stability of temperature rise; in the pressure regulation stage, the water addition judgment logic and water addition parameters are set based on the sterilization mode to balance the steam generation efficiency and temperature stability; in the sterilization stage, the temperature and air pressure are periodically detected, and the exhaust operation is triggered when any parameter exceeds the limit to avoid control failure caused by a single dependence; in the drying stage, the boiler temperature is maintained within a preset range by starting and stopping the heating, and hot air is introduced by combining an air pump to ensure uniform drying; each stage executes differentiated control logic based on temperature, air pressure and sterilization mode. Through phased control, multi-mode adaptive strategy and closed-loop logic, this method improves the sterilization efficiency and success rate while taking into account equipment safety and energy saving.

Description

Technical Field

[0001] The present invention relates to the field of sterilizers, and more particularly, to a sterilization control method, system and storage medium for a sterilizer. Background Art

[0002] Traditional sterilizers are widely used in medical and laboratory scenarios, but their control methods have significant limitations. Existing technologies usually use a single temperature or air pressure threshold for process control, which is difficult to adapt to sterilization objects of different materials, resulting in incomplete sterilization or the risk of material damage. For example, plastic instruments require lower temperatures to avoid softening, while wrapped instruments require higher temperatures to penetrate the covering, but traditional equipment lacks dynamic adjustment capabilities and requires frequent manual parameter adjustments, which is complicated and inefficient to operate. In addition, in the traditional sterilization process, the temperature overshoot is prone to occur during the heating stage due to one-time excessive heating, and the boiler needs to be repeatedly started and stopped to correct it, which not only consumes a lot of energy, but also accelerates equipment loss; the drying stage relies on fixed time control, which is prone to affecting the safe storage of sterilized items due to residual humidity. Therefore, there is an urgent need for an efficient and safe sterilizer control technology. Summary of the Invention

[0003] In light of the aforementioned issues, the present invention aims to provide a sterilization control method, system, and storage medium for a sterilizer. These methods address the significant temperature fluctuations, high energy consumption, and poor adaptability inherent in traditional sterilizers through a phased, multi-mode, and dynamic threshold control approach. The specific implementation significantly improves sterilization efficiency, safety, and device lifespan, incorporating strategies such as a pre-set mapping table mechanism, periodic monitoring, and closed-loop control. The system is suitable for diverse scenarios, including medical and laboratory applications.

[0004] A first aspect of the present invention provides a sterilization control method for a sterilizer, the method comprising:

[0005] Based on the first temperature information of the sterilization box and the second temperature information and air pressure information of the boiler, four control stages are performed:

[0006] S1:

[0007] Open the gas valve and continue heating the boiler based on the first water addition logic until the second temperature information reaches a preset preheating temperature threshold;

[0008] If the first temperature information reaches the preset preheating target temperature, enter S2;

[0009] S2:

[0010] Based on the sterilization mode, determining a first temperature range according to a preset first mapping table;

[0011] The gas valve is closed, and based on the second water addition logic, the boiler is continuously heated until the second temperature information reaches a preset pressure regulating temperature threshold;

[0012] If the first temperature information is higher than the first temperature range, heating is stopped and the gas valve is opened;

[0013] If the first temperature information is lower than the first temperature range, heating is resumed and the gas valve is closed;

[0014] S3:

[0015] Based on a preset time period, executing exhaust logic according to the first temperature information and the air pressure information;

[0016] Based on the sterilization mode, executing a third water addition logic according to the first temperature information and the second temperature information;

[0017] S4:

[0018] Open the air valve and drive the air pump to pump in hot air;

[0019] The second temperature information is controlled to be within a preset second temperature range by stopping or resuming heating, and the preset drying time is continued.

[0020] In this solution, S1 is the preheating stage, and the first water addition logic in the preheating stage is specifically as follows:

[0021] S201, obtaining a preheating temperature threshold list, and selecting elements in the list in sequence as preheating temperature thresholds;

[0022] S202: If the second temperature information reaches the preheating temperature threshold, obtaining a first water adding time according to the preheating temperature threshold and a preset second mapping table;

[0023] S203, completing the water adding operation according to the first water adding time, the preset first water adding interval and the first water adding round;

[0024] S204: If the current preheating temperature threshold is not the last element in the preheating temperature threshold list, select the next element in the list as the preheating temperature threshold;

[0025] S205, re-execute S202 until entering the next stage.

[0026] In this solution, S2 is the pressure regulation stage, and the second water addition logic in the pressure regulation stage is specifically as follows:

[0027] S301, obtaining a pressure regulating temperature threshold list according to the sterilization mode, and selecting elements of the list in sequence as the pressure regulating temperature thresholds;

[0028] S302: If the second temperature information reaches the pressure regulating temperature threshold, completing the water adding operation according to a preset second water adding time, a preset second water adding interval, and a preset second water adding round;

[0029] S303: If the current voltage regulation temperature threshold is not the last element in the voltage regulation temperature threshold list, select the next element in the list as the voltage regulation temperature threshold;

[0030] S304, re-execute S302 until entering the next stage.

[0031] In this solution, S3 is the sterilization stage, and the exhaust logic of the sterilization stage is specifically as follows:

[0032] According to the sterilization mode, a first sterilization pressure threshold, a first exhaust time, a first exhaust temperature threshold, and a second exhaust time are obtained based on a preset third mapping table;

[0033] Based on the preset first time period, the exhaust judgment is triggered:

[0034] If the air pressure information is greater than the first sterilization pressure threshold, opening the air valve to exhaust air according to the first exhaust time;

[0035] If the first temperature information is greater than the first exhaust temperature threshold, the gas valve is opened to exhaust according to the second exhaust time.

[0036] In this solution, S3 is the sterilization stage, and the third water addition logic in the sterilization stage is specifically as follows:

[0037] According to the preset second time period, the water addition judgment is triggered:

[0038] When the first sterilization mode is determined, a second water adding temperature threshold is obtained according to a preset fourth mapping table; if the second temperature information is greater than the second water adding temperature threshold, a water adding operation is completed according to a preset third water adding time;

[0039] When it is judged to be the second sterilization mode, the first water adding temperature threshold and the second water adding temperature threshold are obtained according to the preset fourth mapping table; if the first temperature information is less than the first water adding temperature threshold, and the second temperature information is greater than the second water adding temperature threshold, then a water adding operation is completed according to the preset third water adding time.

[0040] In this solution, S4 is the drying stage, and the drying operations performed are specifically as follows:

[0041] According to the sterilization mode, a second temperature range is obtained according to a preset fifth mapping table;

[0042] If the second temperature information is lower than the second temperature range, starting heating;

[0043] If the second temperature information is higher than the second temperature range, stopping heating;

[0044] Record the drying operation time until the preset drying time is reached.

[0045] A second aspect of the present invention provides a sterilization control system for a sterilizer, including a sterilization control method program for the sterilizer. When the sterilization control method program for the sterilizer is executed by the processor, the following steps are implemented:

[0046] Based on the first temperature information of the sterilization box and the second temperature information and air pressure information of the boiler, four control stages are performed:

[0047] S1:

[0048] Open the gas valve and continue heating the boiler based on the first water addition logic until the second temperature information reaches a preset preheating temperature threshold;

[0049] If the first temperature information reaches the preset preheating target temperature, enter S2;

[0050] S2:

[0051] Based on the sterilization mode, determining a first temperature range according to a preset first mapping table;

[0052] The gas valve is closed, and based on the second water addition logic, the boiler is continuously heated until the second temperature information reaches a preset pressure regulating temperature threshold;

[0053] If the first temperature information is higher than the first temperature range, heating is stopped and the gas valve is opened;

[0054] If the first temperature information is lower than the first temperature range, heating is resumed and the gas valve is closed;

[0055] S3:

[0056] Based on a preset time period, executing exhaust logic according to the first temperature information and the air pressure information;

[0057] Based on the sterilization mode, executing a third water addition logic according to the first temperature information and the second temperature information;

[0058] S4:

[0059] Open the air valve and drive the air pump to pump in hot air;

[0060] The second temperature information is controlled to be within a preset second temperature range by stopping or resuming heating, and the preset drying time is continued.

[0061] In this solution, S1 is the preheating stage, and the first water addition logic in the preheating stage is specifically as follows:

[0062] S201, obtaining a preheating temperature threshold list, and selecting elements in the list in sequence as preheating temperature thresholds;

[0063] S202: If the second temperature information reaches the preheating temperature threshold, obtaining a first water adding time according to the preheating temperature threshold and a preset second mapping table;

[0064] S203, completing the water adding operation according to the first water adding time, the preset first water adding interval and the first water adding round;

[0065] S204: If the current preheating temperature threshold is not the last element in the preheating temperature threshold list, select the next element in the list as the preheating temperature threshold;

[0066] S205, re-execute S202 until entering the next stage.

[0067] In this solution, S2 is the pressure regulation stage, and the second water addition logic in the pressure regulation stage is specifically as follows:

[0068] S301, obtaining a pressure regulating temperature threshold list according to the sterilization mode, and selecting elements of the list in sequence as the pressure regulating temperature thresholds;

[0069] S302: If the second temperature information reaches the pressure regulating temperature threshold, completing the water adding operation according to a preset second water adding time, a preset second water adding interval, and a preset second water adding round;

[0070] S303: If the current voltage regulation temperature threshold is not the last element in the voltage regulation temperature threshold list, select the next element in the list as the voltage regulation temperature threshold;

[0071] S304, re-execute S302 until entering the next stage.

[0072] The third aspect of the present invention provides a computer-readable storage medium, which includes a sterilization control method program for a sterilizer. When the sterilization control method program for a sterilizer is executed by a processor, the steps of the sterilization control method for a sterilizer as described in any one of the above items are implemented.

[0073] The present invention provides a sterilization control method, system and storage medium for a sterilizer, which divides the sterilization process into four stages: preheating, pressure regulation, sterilization and drying. In the preheating stage, the water addition time is dynamically adjusted to improve the stability of temperature rise; in the pressure regulation stage, the water addition judgment logic and water addition parameters are set based on the sterilization mode to balance the steam generation efficiency and temperature stability; in the sterilization stage, the temperature and air pressure are periodically detected, and the exhaust operation is triggered when any parameter exceeds the limit to avoid control failure caused by a single dependence; in the drying stage, the boiler temperature is maintained within a preset range by starting and stopping the heating, and hot air is introduced by combining an air pump to ensure uniform drying; each stage executes differentiated control logic based on temperature, air pressure and sterilization mode. Through phased control, multi-mode adaptive strategy and closed-loop logic, this method improves the sterilization efficiency and success rate while taking into account equipment safety and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope.

[0075] Figure 1 A flow chart showing a sterilization control method for a sterilizer provided by the present invention is shown;

[0076] Figure 2 shows an operation flow chart of the first water addition logic in the preheating stage provided by an embodiment of the present invention;

[0077] Figure 3 shows an operation flow chart of the second water addition logic in the pressure regulation stage provided by an embodiment of the present invention;

[0078] Figure 4 A block diagram of a sterilization control system of a sterilizer according to the present invention is shown. DETAILED DESCRIPTION

[0079] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0080] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined in this manner in the embodiments of the present invention.

[0081] The words "first", "second" and similar terms used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one", "an" or "the" do not indicate a quantity limitation, but rather indicate the existence of at least one. Similarly, words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The steps before or after the method of the embodiment of the present invention do not necessarily have to be performed in exact order. On the contrary, the various steps may be processed in reverse order or simultaneously. At the same time, other operations may be added to these processes, or one or more steps may be removed from these processes.

[0082] In addition, the functional modules in the various embodiments of the present invention may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0083] Figure 1 A flow chart of a sterilization control method for a sterilizer provided by the present invention is shown.

[0084] like Figure 1 As shown, the first aspect of the present invention discloses a sterilization control method for a sterilizer, the method comprising: executing four control stages based on first temperature information of the sterilization box and second temperature information and air pressure information of the boiler:

[0085] S1 warm-up phase:

[0086] S102, opening the gas valve and continuously heating the boiler based on the first water addition logic until the second temperature information reaches a preset preheating temperature threshold;

[0087] S104, if the first temperature information reaches the preset preheating target temperature, enter S2;

[0088] S2 voltage regulation stage:

[0089] S106, based on the sterilization mode, determining a first temperature range according to a preset first mapping table;

[0090] S108, closing the gas valve and continuously heating the boiler based on the second water addition logic until the second temperature information reaches a preset pressure regulating temperature threshold;

[0091] S110, if the first temperature information is higher than the first temperature range, stop heating and open the gas valve;

[0092] S112, if the first temperature information is lower than the first temperature range, resuming heating and closing the gas valve;

[0093] S3 sterilization stage:

[0094] S114, executing exhaust logic based on the first temperature information and the air pressure information based on a preset time period;

[0095] S116, based on the sterilization mode, executing a third water addition logic according to the first temperature information and the second temperature information;

[0096] S4 drying stage:

[0097] S118, opening the air valve and driving the air pump to pump in hot air;

[0098] S120, controlling the second temperature information to be within a preset second temperature range by stopping or resuming heating, and continuing for a preset drying time.

[0099] It should be noted that adding water to the sterilizer primarily involves adding water to the boiler; the purpose of adding water to the boiler is to generate steam. When heated, water turns into steam, a key factor in sterilization. Under high temperature and pressure, steam releases a large amount of latent heat, which is transferred to microbial cells, causing the denaturation and coagulation of biomacromolecules such as proteins and nucleic acids within the cells, leading to the death of the microorganisms. Steam also has strong penetrating power, capable of penetrating deeply into objects, effectively killing even microorganisms trapped within. Heating in the sterilizer primarily involves applying power to the boiler. This heating vaporizes the water in the boiler into high-temperature steam, a key step in sterilization. Boiler heating provides energy for the entire sterilization process, converting water into steam and maintaining the appropriate temperature and pressure, ensuring smooth sterilization. Specifically, in the preheating phase S1, the gas valve is opened, and the boiler is continuously heated based on the first water addition logic until the boiler temperature reaches the preset preheating threshold. If the sterilization chamber temperature reaches the target, the pressure regulation phase begins. The boiler heats up in stages, adding water after each stage reaches an intermediate temperature threshold to prevent one-time overheating. The water addition logic uses alternating or fixed time strategies. For example, the water addition time for the first two rounds is dynamically adjusted, while the subsequent rounds are fixed. If the sterilization cassette temperature does not meet the target, the boiler continues to raise the temperature threshold and repeats the heating-water addition cycle. This staged heating and dynamic water addition prevents boiler overheating, ensures uniform heating of the sterilization cassette, and reduces energy waste. In the pressure regulation stage S2, depending on the sterilization mode, a temperature range is set based on a preset first mapping table. The gas valve is closed and the boiler is heated to the pressure regulation temperature threshold. If the sterilization cassette temperature exceeds the range, the temperature is adjusted by starting and stopping heating and the exhaust valve. The sterilization mode is set based on the sterilization object. The first sterilization mode includes five types: wrapped and unwrapped. Wrapped means that the sterilized object needs to be sterilized in a sterilization bag, while unwrapped means that the sterilization bag is not required for sterilization. The five types of wrapped and unwrapped items include hollow, unwrapped, small, hollow, unwrapped, large, solid, unwrapped, hollow, wrapped, small, and hollow, wrapped, large. The second sterilization mode includes two types: rubber and plastic. The corresponding upper and lower temperature limits, exhaust limits, number of adjustments, and sterilization durations vary between the first and second sterilization modes, as well as within the first sterilization mode. Preset mapping tables are used for each mode. During the pressure regulation phase (S2), the boiler heats to a higher temperature threshold, adding a fixed number of water steps each time the threshold is reached. The first temperature range is dynamically adjusted based on the sterilization object type, for example, an upper limit of 133-135°C for wrapped items and 120-123°C for plastics. The sterilization cassette temperature is collected in real time. When the cassette temperature exceeds the first temperature range, heating is stopped and the gas valve is opened. When the cassette temperature falls below the first temperature range, heating is resumed and the gas valve is closed. Multi-mode adaptive regulation ensures temperature stability for different sterilization objects.In the sterilization stage (S3), the temperature and air pressure of the sterilization cassette are monitored based on a preset cycle. If the air pressure exceeds the threshold corresponding to the sterilization mode, exhaust is triggered. Simultaneously, boiler heating and periodic water addition are controlled based on the boiler temperature. In one embodiment, exhaust monitoring is performed every 8 seconds. If the air pressure or temperature exceeds the limit, the exhaust valve is opened for 0.3 seconds. In the first sterilization mode, heating is started and stopped based on the threshold associated with the sterilization cassette and boiler temperatures. In the second sterilization mode, heating is started and stopped based on a combination of multiple temperature conditions. Using dual temperature and air pressure conditions to trigger exhaust operation precisely controls the sterilization environment. In the drying stage (S4), the air valve is opened and the air pump is driven to introduce hot air. By controlling the heating on and off, the boiler temperature is kept within the drying range until a preset time is reached. In one embodiment, the boiler temperature is cycled between 134-136°C, and the air pump continuously introduces hot air to accelerate drying. The drying time is set according to the sterilization mode. This drying stage prevents moisture entrapment and improves the storage safety of sterilized items. This embodiment adopts staged threshold driving and multi-mode adaptive control to achieve an efficient, safe, and energy-saving sterilization process, which is suitable for complex sterilization scenarios.

[0100] Figure 2 The flowchart of the operation of the first water addition logic in the preheating stage provided by an embodiment of the present invention is shown.

[0101] According to an embodiment of the present invention, Figure 2 As shown, S1 is the preheating stage, and the first water addition logic in the preheating stage is specifically as follows:

[0102] S201, obtaining a preheating temperature threshold list, and selecting elements in the list in sequence as preheating temperature thresholds;

[0103] S202: If the second temperature information reaches the preheating temperature threshold, obtaining a first water adding time according to the preheating temperature threshold and a preset second mapping table;

[0104] S203, completing the water adding operation according to the first water adding time, the preset first water adding interval and the first water adding round;

[0105] S204: If the current preheating temperature threshold is not the last element in the preheating temperature threshold list, select the next element in the list as the preheating temperature threshold;

[0106] S205, re-execute S202 until entering the next stage.

[0107] It should be noted that the first water addition logic in the preheating phase is as follows: First, a list of preheating temperature thresholds for the boiler's staged heating is obtained, taking [135°C, 140°C, 145°C] as an example. First, 135°C is selected as the preheating temperature threshold, and its water addition mode and the duration of each water addition are obtained based on the preset second mapping table. When the boiler temperature reaches 135°C, the water addition operation is completed according to the preset intervals and rounds. As one embodiment, the water addition operation is completed with a fixed water addition duration of 0.6 seconds and a time interval of 4 seconds for a total of 5 rounds. As another embodiment, the water addition operation is completed with a dynamically adjusted water addition duration of [0.7 seconds, 0.8 seconds, 0.7 seconds, 0.8 seconds, 0.7 seconds] at a time interval of 4 seconds for a total of 5 rounds. When the boiler temperature reaches 145°C, the last element in the preheating temperature threshold list, and the water addition operation is completed, the system determines whether the sterilization chamber temperature has reached the preset preheating target temperature. If so, preheating is complete, and the pressure adjustment phase begins. If not, heating and water addition continue, using 145°C as the preheating temperature threshold. This embodiment uses a staged temperature increase to prevent boiler overshoot and a dynamic water addition strategy to balance steam generation speed. Furthermore, through a threshold list and mapping mechanism, the system flexibly adapts to the heating characteristics of different sterilization equipment.

[0108] Figure 3 The flowchart of the operation of the second water addition logic in the pressure regulation stage provided by an embodiment of the present invention is shown.

[0109] According to an embodiment of the present invention, Figure 3 As shown, S2 is the pressure regulation stage, and the second water addition logic in the pressure regulation stage is specifically as follows:

[0110] S301, obtaining a pressure regulating temperature threshold list according to the sterilization mode, and selecting elements of the list in sequence as the pressure regulating temperature thresholds;

[0111] S302: If the second temperature information reaches the pressure regulating temperature threshold, completing the water adding operation according to a preset second water adding time, a preset second water adding interval, and a preset second water adding round;

[0112] S303: If the current voltage regulation temperature threshold is not the last element in the voltage regulation temperature threshold list, select the next element in the list as the voltage regulation temperature threshold;

[0113] S304, re-execute S302 until entering the next stage.

[0114] It should be noted that the second water addition logic in the pressure regulation stage is as follows: first, the pressure regulation temperature threshold list is determined according to the sterilization mode. For example, the pressure regulation temperature threshold list for the first sterilization mode is [150°C, 160°C], and the pressure regulation temperature threshold list for the second sterilization mode is [145°C, 144°C]. Then, the boiler is heated to the thresholds in the list one by one, and the water addition operation is completed according to the preset fixed water addition time and rounds after each temperature threshold is reached. As an embodiment, the water addition interval is fixed at 4 seconds, the water addition time is fixed at 0.7 seconds, and the rounds are fixed at 5 times. When the boiler temperature reaches the last element in the pressure regulation temperature threshold list, the water addition operation is repeated until entering the next stage. This embodiment sets the heating path for different sterilization objects to avoid insufficient or excessive temperature; since the temperature change in the pressure regulation stage is relatively stable, fixed water addition parameters are selected to simplify the control complexity.

[0115] According to an embodiment of the present invention, S3 is a sterilization stage, and the exhaust logic of the sterilization stage is specifically as follows:

[0116] According to the sterilization mode, a first sterilization pressure threshold, a first exhaust time, a first exhaust temperature threshold, and a second exhaust time are obtained based on a preset third mapping table;

[0117] Based on the preset first time period, the exhaust judgment is triggered:

[0118] If the air pressure information is greater than the first sterilization pressure threshold, opening the air valve to exhaust air according to the first exhaust time;

[0119] If the first temperature information is greater than the first exhaust temperature threshold, the gas valve is opened to exhaust according to the second exhaust time.

[0120] It should be noted that the exhaust logic of the sterilization stage S3 is as follows: First, the judgment parameters of the exhaust logic are confirmed according to the sterilization mode. As an embodiment, for the first sterilization mode, the first sterilization pressure threshold is 320kPa, the first exhaust time is 0.35s, the first exhaust temperature threshold is 137°C, and the second exhaust time is 0.25s; for the second sterilization mode, the first sterilization pressure threshold is 220kPa, the first exhaust time is 0.3s, the first exhaust temperature threshold is 124°C, and the second exhaust time is 0.3s. According to the preset first time period, the exhaust judgment is triggered: if the air pressure of the sterilization box is greater than the first sterilization pressure threshold, the exhaust pressure is reduced according to the first exhaust time; if the temperature of the sterilization box exceeds the first exhaust temperature threshold, the exhaust temperature is reduced according to the second exhaust time. This embodiment uses dual-condition triggering exhaust to avoid risks caused by the failure of a single parameter; and based on short-term exhaust, steam waste is reduced while maintaining a stable sterilization environment.

[0121] According to an embodiment of the present invention, S3 is a sterilization stage, and the third water addition logic of the sterilization stage is specifically as follows:

[0122] According to the preset second time period, the water addition judgment is triggered:

[0123] When the first sterilization mode is determined, a second water adding temperature threshold is obtained according to a preset fourth mapping table; if the second temperature information is greater than the second water adding temperature threshold, a water adding operation is completed according to a preset third water adding time;

[0124] When it is judged to be the second sterilization mode, the first water adding temperature threshold and the second water adding temperature threshold are obtained according to the preset fourth mapping table; if the first temperature information is less than the first water adding temperature threshold, and the second temperature information is greater than the second water adding temperature threshold, then a water adding operation is completed according to the preset third water adding time.

[0125] It should be noted that the water addition logic for sterilization stage S3 is as follows: the judgment parameters for the third water addition logic are determined based on the sterilization mode. For the first sterilization mode, only the boiler temperature needs to be determined: the second water addition temperature threshold for the boiler is obtained according to a preset fourth mapping table. When the boiler temperature exceeds the second water addition temperature threshold, water is added at a fixed water addition interval according to the third water addition time to reduce the temperature. In one embodiment, when the boiler temperature exceeds 160°C, water is added at 8-second intervals for 0.5 seconds each time. For the second sterilization mode, both the boiler and sterilization cassette temperatures must be determined: the first water addition temperature threshold for the sterilization cassette and the second water addition temperature threshold for the boiler are obtained according to a preset fourth mapping table. When the boiler temperature exceeds the second water addition temperature threshold and the sterilization cassette temperature exceeds the first water addition temperature threshold, water is added at a fixed water addition interval according to the third water addition time to reduce the temperature. In one embodiment, when the boiler temperature exceeds 143°C and the sterilization cassette temperature is below 124°C, water is added at 8-second intervals for 0.5 seconds each time. This embodiment uses differentiated control based on different modes to ensure that plastic devices are not damaged by high-temperature steam.

[0126] According to an embodiment of the present invention, S4 is a drying stage, and the drying operations performed are specifically as follows:

[0127] According to the sterilization mode, a second temperature range is obtained according to a preset fifth mapping table;

[0128] If the second temperature information is lower than the second temperature range, starting heating;

[0129] If the second temperature information is higher than the second temperature range, stopping heating;

[0130] Record the drying operation time until the preset drying time is reached.

[0131] It should be noted that the drying operation in drying stage S4 is as follows: First, the drying temperature range is set based on the sterilization mode, using 134-136°C as an example. During the drying stage, the air valve is opened, driving the air pump to continuously pump hot air into the boiler. This continuous flow of hot air accelerates air flow within the sterilization chamber, improving drying efficiency. When the temperature inside the boiler exceeds 136°C, boiler heating is stopped; when the temperature inside the boiler falls below 134°C, boiler heating is resumed.

[0132] It is worth mentioning that the sterilization stage also includes heating logic, specifically:

[0133] When the first sterilization mode is determined, a first sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset sixth mapping table, wherein the first boiler temperature threshold is greater than the second boiler temperature threshold;

[0134] If the first temperature information is greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the first boiler temperature threshold;

[0135] If so, stop heating;

[0136] If not, start heating;

[0137] If the first temperature information is not greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the second boiler temperature threshold;

[0138] If so, stop heating;

[0139] If not, start heating.

[0140] It should be noted that according to the judgment parameters of the heating logic confirmed by the sterilization mode, three temperature thresholds are set for the first sterilization mode. As an implementation method, the first sterilization temperature threshold is 135°C, the first boiler temperature threshold is 160°C, and the second boiler temperature threshold is 150°C. When the temperature of the sterilization box exceeds 135°C, it is determined whether the boiler temperature exceeds 160°C; if so, heating is stopped; if not, heating is started. When the temperature of the sterilization box does not exceed 135°C, it is determined whether the boiler temperature is greater than 150°C. If so, heating is stopped; if not, heating is started. Through dual conditional restrictions, it is ensured that the wrapped instruments are sterilized within a safe temperature range to avoid overheating and deformation.

[0141] It is worth mentioning that the sterilization stage also includes heating logic, specifically:

[0142] When the second sterilization mode is determined, a first sterilization temperature threshold, a second sterilization temperature threshold, a third sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset seventh mapping table, wherein the first sterilization temperature threshold is less than the second sterilization temperature threshold, which is less than the third sterilization temperature threshold, and the first boiler temperature threshold is less than the second boiler temperature threshold;

[0143] If the first temperature information is less than a first sterilization temperature threshold, starting heating;

[0144] If the first temperature information is between the first sterilization temperature threshold and the second sterilization temperature threshold, and the second temperature information is less than the first boiler temperature threshold, heating is started;

[0145] When the above two situations are not true, if the first temperature information is less than the third sterilization temperature threshold, and the second temperature information is less than the second boiler temperature threshold, heating is started; otherwise, heating is stopped.

[0146] It should be noted that, based on the judgment parameters of the sterilization mode confirmation heating logic, five temperature thresholds are set for the second sterilization mode. As an embodiment, the first sterilization temperature threshold is 122°C, the second sterilization temperature threshold is 123°C, the third sterilization temperature threshold is 124°C, the first boiler temperature threshold is 140°C, and the second boiler temperature threshold is 150°C. When the sterilization box temperature is lower than 122°C, heating is started. When the sterilization box temperature is within the range of 122°C-123°C and the boiler temperature is lower than 140°C, heating is started. If neither of the above two conditions is true, if the sterilization box temperature is lower than 124°C and the boiler temperature is lower than 150 degrees Celsius, heating is started; otherwise, heating is stopped. Multi-level temperature conditions protect plastic instruments, preventing material softening or degradation while maintaining the necessary sterilization temperature.

[0147] Figure 4 A block diagram of a sterilization control system of a sterilizer according to the present invention is shown.

[0148] like Figure 4 As shown, the second aspect of the present invention discloses a sterilization control system 4 for a sterilizer, comprising a memory 41 and a processor 42. The memory comprises a sterilization control method program for the sterilizer, and when the sterilization control method program for the sterilizer is executed by the processor, the following steps are implemented:

[0149] Based on the first temperature information of the sterilization box and the second temperature information and air pressure information of the boiler, four control stages are performed:

[0150] S1 warm-up phase:

[0151] Open the gas valve and continue heating the boiler based on the first water addition logic until the second temperature information reaches a preset preheating temperature threshold;

[0152] If the first temperature information reaches the preset preheating target temperature, enter S2;

[0153] S2 voltage regulation stage:

[0154] Based on the sterilization mode, determining a first temperature range according to a preset first mapping table;

[0155] The gas valve is closed, and based on the second water addition logic, the boiler is continuously heated until the second temperature information reaches a preset pressure regulating temperature threshold;

[0156] If the first temperature information is higher than the first temperature range, heating is stopped and the gas valve is opened;

[0157] If the first temperature information is lower than the first temperature range, heating is resumed and the gas valve is closed;

[0158] S3 sterilization stage:

[0159] Based on a preset time period, executing exhaust logic according to the first temperature information and the air pressure information;

[0160] Based on the sterilization mode, executing a third water addition logic according to the first temperature information and the second temperature information;

[0161] S4 drying stage:

[0162] Open the air valve and drive the air pump to pump in hot air;

[0163] The second temperature information is controlled to be within a preset second temperature range by stopping or resuming heating, and the preset drying time is continued.

[0164] It should be noted that during the preheating phase (S1), the gas valve is opened, and the boiler is continuously heated based on the first water addition logic until the boiler temperature reaches the preset preheating temperature threshold. If the sterilization chamber temperature meets the standard, the pressure regulation phase begins. The boiler heats up in stages, and water is added after each stage reaches an intermediate temperature threshold to prevent one-time overheating. The water addition logic uses an alternating or fixed time strategy. For example, the water addition time for the first two rounds is dynamically adjusted, while the subsequent rounds are fixed. If the sterilization chamber temperature does not meet the standard, the boiler continues to increase the temperature threshold and repeats the heating and water addition cycle. This staged heating and dynamic water addition prevents boiler overheating, ensures uniform heating of the sterilization chamber, and reduces energy waste. In the pressure regulation phase (S2), a temperature range is set based on the first preset mapping table according to the sterilization mode. The gas valve is closed and the boiler is heated to the pressure regulation temperature threshold. If the sterilization chamber temperature exceeds the range, the temperature is adjusted by starting and stopping the heating and exhaust valves. Among them, the sterilization mode is set based on the sterilization object, among which the first sterilization mode includes 5 types: wrapped and non-wrapped. Wrapped means that the sterilized object needs to be put in a sterilization bag for sterilization, while non-wrapped does not need to be sterilized with a sterilization bag. The 5 types of wrapped and non-wrapped include hollow non-wrapped small items, hollow non-wrapped large items, solid non-wrapped small items, hollow wrapped small items and hollow wrapped large items. The second sterilization mode includes 2 types: rubber and plastic. Whether it is the first sterilization mode, the second sterilization mode, or the 5 types of wrapped and non-wrapped in the first sterilization mode, the corresponding temperature upper limit, temperature lower limit, exhaust limit, number of adjustments and sterilization time are different. The preset mapping table is called based on different modes. In the pressure regulation stage S2, the boiler is heated to a higher temperature threshold one by one, and a fixed number of water addition operations are performed each time the threshold is reached. The first temperature range is dynamically adjusted based on the type of sterilization object, for example, an upper limit of 133-135°C for packages and 120-123°C for plastics. The sterilization cassette temperature is recorded in real time. When the cassette temperature exceeds the first temperature range, heating is stopped and the air valve is opened. When the cassette temperature falls below the first temperature range, heating is resumed and the air valve is closed. Multi-mode adaptive regulation ensures temperature stability for different sterilization objects. Sterilization stage S3 monitors the cassette temperature and air pressure based on a preset cycle. If the air pressure exceeds the corresponding threshold for the sterilization mode, exhaust is triggered. Boiler heating and periodic water addition are also controlled based on the boiler temperature. In one embodiment, exhaust detection is performed every 8 seconds. If the air pressure or temperature exceeds the limit, the exhaust valve is opened for 0.3 seconds. In the first sterilization mode, heating is started and stopped based on the threshold associated with the cassette and boiler temperatures. In the second sterilization mode, heating is started and stopped based on a combination of multiple temperature conditions. Using dual temperature and pressure conditions to trigger exhaust operation precisely controls the sterilization environment. In the drying phase (S4), the air valve is opened and the air pump is driven to introduce hot air. By controlling the start and stop of the heating, the boiler temperature is kept within the drying range until the preset drying time is reached. In one embodiment, the boiler temperature is cycled between 134-136°C, and the air pump continuously introduces hot air to accelerate drying. The drying time is set according to the sterilization mode.The drying phase prevents moisture from remaining, improving the safety of sterilized items. This embodiment uses staged threshold drive and multi-mode adaptive control to achieve an efficient, safe, and energy-saving sterilization process, suitable for complex sterilization scenarios.

[0165] Figure 2 The flowchart of the operation of the first water addition logic in the preheating stage provided by an embodiment of the present invention is shown.

[0166] According to an embodiment of the present invention, Figure 2 As shown, S1 is the preheating stage, and the first water addition logic in the preheating stage is specifically as follows:

[0167] S201, obtaining a preheating temperature threshold list, and selecting elements in the list in sequence as preheating temperature thresholds;

[0168] S202: If the second temperature information reaches the preheating temperature threshold, obtaining a first water adding time according to the preheating temperature threshold and a preset second mapping table;

[0169] S203, completing the water adding operation according to the first water adding time, the preset first water adding interval and the first water adding round;

[0170] S204: If the current preheating temperature threshold is not the last element in the preheating temperature threshold list, select the next element in the list as the preheating temperature threshold;

[0171] S205, re-execute S202 until entering the next stage.

[0172] It should be noted that the first water addition logic in the preheating phase is as follows: First, a list of preheating temperature thresholds for the boiler's staged heating is obtained, taking [135°C, 140°C, 145°C] as an example. First, 135°C is selected as the preheating temperature threshold, and its water addition mode and the duration of each water addition are obtained based on the preset second mapping table. When the boiler temperature reaches 135°C, the water addition operation is completed according to the preset intervals and rounds. As one embodiment, the water addition operation is completed with a fixed water addition duration of 0.6 seconds and a time interval of 4 seconds for a total of 5 rounds. As another embodiment, the water addition operation is completed with a dynamically adjusted water addition duration of [0.7 seconds, 0.8 seconds, 0.7 seconds, 0.8 seconds, 0.7 seconds] at a time interval of 4 seconds for a total of 5 rounds. When the boiler temperature reaches 145°C, the last element in the preheating temperature threshold list, and the water addition operation is completed, the system determines whether the sterilization chamber temperature has reached the preset preheating target temperature. If so, preheating is complete, and the pressure adjustment phase begins. If not, heating and water addition continue, using 145°C as the preheating temperature threshold. This embodiment uses a staged temperature increase to prevent boiler overshoot and a dynamic water addition strategy to balance steam generation speed. Furthermore, through a threshold list and mapping mechanism, the system flexibly adapts to the heating characteristics of different sterilization equipment.

[0173] According to an embodiment of the present invention, S2 is a pressure regulation stage, and the second water addition logic in the pressure regulation stage is specifically as follows:

[0174] S301, obtaining a pressure regulating temperature threshold list according to the sterilization mode, and selecting elements of the list in sequence as the pressure regulating temperature thresholds;

[0175] S302: If the second temperature information reaches the pressure regulating temperature threshold, completing the water adding operation according to a preset second water adding time, a preset second water adding interval, and a preset second water adding round;

[0176] S303: If the current voltage regulation temperature threshold is not the last element in the voltage regulation temperature threshold list, select the next element in the list as the voltage regulation temperature threshold;

[0177] S304, re-execute S302 until entering the next stage.

[0178] It should be noted that the second water addition logic in the pressure regulation stage is as follows: first, the pressure regulation temperature threshold list is determined according to the sterilization mode. For example, the pressure regulation temperature threshold list for the first sterilization mode is [150°C, 160°C], and the pressure regulation temperature threshold list for the second sterilization mode is [145°C, 144°C]. Then, the boiler is heated to the thresholds in the list one by one, and the water addition operation is completed according to the preset fixed water addition time and rounds after each temperature threshold is reached. As an embodiment, the water addition interval is fixed at 4 seconds, the water addition time is fixed at 0.7 seconds, and the rounds are fixed at 5 times. When the boiler temperature reaches the last element in the pressure regulation temperature threshold list, the water addition operation is repeated until entering the next stage. This embodiment sets the heating path for different sterilization objects to avoid insufficient or excessive temperature; since the temperature change in the pressure regulation stage is relatively stable, fixed water addition parameters are selected to simplify the control complexity.

[0179] According to an embodiment of the present invention, S3 is a sterilization stage, and the exhaust logic of the sterilization stage is specifically as follows:

[0180] According to the sterilization mode, a first sterilization pressure threshold, a first exhaust time, a first exhaust temperature threshold, and a second exhaust time are obtained based on a preset third mapping table;

[0181] Based on the preset first time period, the exhaust judgment is triggered:

[0182] If the air pressure information is greater than the first sterilization pressure threshold, opening the air valve to exhaust air according to the first exhaust time;

[0183] If the first temperature information is greater than the first exhaust temperature threshold, the gas valve is opened to exhaust according to the second exhaust time.

[0184] It should be noted that the exhaust logic of the sterilization stage S3 is as follows: First, the judgment parameters of the exhaust logic are confirmed according to the sterilization mode. As an embodiment, for the first sterilization mode, the first sterilization pressure threshold is 320kPa, the first exhaust time is 0.35s, the first exhaust temperature threshold is 137°C, and the second exhaust time is 0.25s; for the second sterilization mode, the first sterilization pressure threshold is 220kPa, the first exhaust time is 0.3s, the first exhaust temperature threshold is 124°C, and the second exhaust time is 0.3s. According to the preset first time period, the exhaust judgment is triggered: if the air pressure of the sterilization box is greater than the first sterilization pressure threshold, the exhaust pressure is reduced according to the first exhaust time; if the temperature of the sterilization box exceeds the first exhaust temperature threshold, the exhaust temperature is reduced according to the second exhaust time. This embodiment uses dual-condition triggering exhaust to avoid risks caused by the failure of a single parameter; and based on short-term exhaust, steam waste is reduced while maintaining a stable sterilization environment.

[0185] According to an embodiment of the present invention, S3 is a sterilization stage, and the third water addition logic of the sterilization stage is specifically as follows:

[0186] According to the preset second time period, the water addition judgment is triggered:

[0187] When the first sterilization mode is determined, a second water adding temperature threshold is obtained according to a preset fourth mapping table; if the second temperature information is greater than the second water adding temperature threshold, a water adding operation is completed according to a preset third water adding time;

[0188] When it is judged to be the second sterilization mode, the first water adding temperature threshold and the second water adding temperature threshold are obtained according to the preset fourth mapping table; if the first temperature information is less than the first water adding temperature threshold, and the second temperature information is greater than the second water adding temperature threshold, then a water adding operation is completed according to the preset third water adding time.

[0189] It should be noted that the water addition logic for sterilization stage S3 is as follows: the judgment parameters for the third water addition logic are determined based on the sterilization mode. For the first sterilization mode, only the boiler temperature needs to be determined: the second water addition temperature threshold for the boiler is obtained according to a preset fourth mapping table. When the boiler temperature exceeds the second water addition temperature threshold, water is added at a fixed water addition interval according to the third water addition time to reduce the temperature. In one embodiment, when the boiler temperature exceeds 160°C, water is added at 8-second intervals for 0.5 seconds each time. For the second sterilization mode, both the boiler and sterilization cassette temperatures must be determined: the first water addition temperature threshold for the sterilization cassette and the second water addition temperature threshold for the boiler are obtained according to a preset fourth mapping table. When the boiler temperature exceeds the second water addition temperature threshold and the sterilization cassette temperature exceeds the first water addition temperature threshold, water is added at a fixed water addition interval according to the third water addition time to reduce the temperature. In one embodiment, when the boiler temperature exceeds 143°C and the sterilization cassette temperature is below 124°C, water is added at 8-second intervals for 0.5 seconds each time. This embodiment uses differentiated control based on different modes to ensure that plastic devices are not damaged by high-temperature steam.

[0190] According to an embodiment of the present invention, S4 is a drying stage, and the drying operations performed are specifically as follows:

[0191] According to the sterilization mode, a second temperature range is obtained according to a preset fifth mapping table;

[0192] If the second temperature information is lower than the second temperature range, starting heating;

[0193] If the second temperature information is higher than the second temperature range, stopping heating;

[0194] Record the drying operation time until the preset drying time is reached.

[0195] It should be noted that the drying operation in drying stage S4 is as follows: First, the drying temperature range is set based on the sterilization mode, using 134-136°C as an example. During the drying stage, the air valve is opened, driving the air pump to continuously pump hot air into the boiler. This continuous flow of hot air accelerates air flow within the sterilization chamber, improving drying efficiency. When the temperature inside the boiler exceeds 136°C, boiler heating is stopped; when the temperature inside the boiler falls below 134°C, boiler heating is resumed.

[0196] It is worth mentioning that the sterilization stage also includes heating logic, specifically:

[0197] When the first sterilization mode is determined, a first sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset sixth mapping table, wherein the first boiler temperature threshold is greater than the second boiler temperature threshold;

[0198] If the first temperature information is greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the first boiler temperature threshold;

[0199] If so, stop heating;

[0200] If not, start heating;

[0201] If the first temperature information is not greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the second boiler temperature threshold;

[0202] If so, stop heating;

[0203] If not, start heating.

[0204] It should be noted that according to the judgment parameters of the heating logic confirmed by the sterilization mode, three temperature thresholds are set for the first sterilization mode. As an implementation method, the first sterilization temperature threshold is 135°C, the first boiler temperature threshold is 160°C, and the second boiler temperature threshold is 150°C. When the temperature of the sterilization box exceeds 135°C, it is determined whether the boiler temperature exceeds 160°C; if so, heating is stopped; if not, heating is started. When the temperature of the sterilization box does not exceed 135°C, it is determined whether the boiler temperature is greater than 150°C. If so, heating is stopped; if not, heating is started. Through dual conditional restrictions, it is ensured that the wrapped instruments are sterilized within a safe temperature range to avoid overheating and deformation.

[0205] It is worth mentioning that the sterilization stage also includes heating logic, specifically:

[0206] When the second sterilization mode is determined, a first sterilization temperature threshold, a second sterilization temperature threshold, a third sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset seventh mapping table, wherein the first sterilization temperature threshold is less than the second sterilization temperature threshold, which is less than the third sterilization temperature threshold, and the first boiler temperature threshold is less than the second boiler temperature threshold;

[0207] If the first temperature information is less than a first sterilization temperature threshold, starting heating;

[0208] If the first temperature information is between the first sterilization temperature threshold and the second sterilization temperature threshold, and the second temperature information is less than the first boiler temperature threshold, heating is started;

[0209] When the above two situations are not true, if the first temperature information is less than the third sterilization temperature threshold, and the second temperature information is less than the second boiler temperature threshold, heating is started; otherwise, heating is stopped.

[0210] It should be noted that, based on the judgment parameters of the sterilization mode confirmation heating logic, five temperature thresholds are set for the second sterilization mode. As an embodiment, the first sterilization temperature threshold is 122°C, the second sterilization temperature threshold is 123°C, the third sterilization temperature threshold is 124°C, the first boiler temperature threshold is 140°C, and the second boiler temperature threshold is 150°C. When the sterilization box temperature is lower than 122°C, heating is started. When the sterilization box temperature is within the range of 122°C-123°C and the boiler temperature is lower than 140°C, heating is started. If neither of the above two conditions is true, if the sterilization box temperature is lower than 124°C and the boiler temperature is lower than 150 degrees Celsius, heating is started; otherwise, heating is stopped. Multi-level temperature conditions protect plastic instruments, preventing material softening or degradation while maintaining the necessary sterilization temperature.

[0211] The third aspect of the present invention provides a computer-readable storage medium, which includes a sterilization control method program for a sterilizer. When the sterilization control method program for a sterilizer is executed by a processor, the steps of the sterilization control method for a sterilizer as described in any one of the above items are implemented.

[0212] In summary, the present invention provides a sterilization control method, system and storage medium for a sterilizer, which divides the sterilization process into four stages: preheating, pressure regulation, sterilization and drying: in the preheating stage, the water addition time is dynamically adjusted to improve the stability of the temperature rise; in the pressure regulation stage, the water addition judgment logic and water addition parameters are set based on the sterilization mode to balance the steam generation efficiency and temperature stability; in the sterilization stage, the temperature and air pressure are periodically detected during the sterilization stage, and the exhaust operation is triggered when any parameter exceeds the limit to avoid control failure caused by a single dependence; in the drying stage, the boiler temperature is maintained within a preset range by starting and stopping the heating, and hot air is introduced by combining the air pump to ensure uniform drying; each stage executes differentiated control logic based on temperature, air pressure and sterilization mode. Through phased control, multi-mode adaptive strategy and closed-loop logic, this method takes into account equipment safety and energy saving while improving the sterilization efficiency and success rate.

[0213] If the functions are implemented as software modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or the portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include various media capable of storing program code, such as USB flash drives, mobile hard drives, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0214] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A sterilization control method for a sterilizer, characterized in that: The method comprises: Based on the first temperature information of the sterilization box and the second temperature information and air pressure information of the boiler, four control stages are performed: S1： Open the gas valve and continue heating the boiler based on the first water addition logic until the second temperature information reaches a preset preheating temperature threshold; If the first temperature information reaches the preset preheating target temperature, enter S2; S2： Based on the sterilization mode, determining a first temperature range according to a preset first mapping table; The gas valve is closed, and based on the second water addition logic, the boiler is continuously heated until the second temperature information reaches a preset pressure regulating temperature threshold; If the first temperature information is higher than the first temperature range, heating is stopped and the gas valve is opened; If the first temperature information is lower than the first temperature range, heating is resumed and the gas valve is closed; S3： Based on a preset time period, executing exhaust logic according to the first temperature information and the air pressure information; Based on the sterilization mode, executing a third water addition logic according to the first temperature information and the second temperature information; When the first sterilization mode is determined, a first sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset sixth mapping table, wherein the first boiler temperature threshold is greater than the second boiler temperature threshold; If the first temperature information is greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the first boiler temperature threshold; If so, stop heating; If not, start heating; If the first temperature information is not greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the second boiler temperature threshold; If so, stop heating; If not, start heating; When the second sterilization mode is determined, a first sterilization temperature threshold, a second sterilization temperature threshold, a third sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset seventh mapping table, wherein the first sterilization temperature threshold is less than the second sterilization temperature threshold, which is less than the third sterilization temperature threshold, and the first boiler temperature threshold is less than the second boiler temperature threshold; If the first temperature information is less than a first sterilization temperature threshold, starting heating; If the first temperature information is between the first sterilization temperature threshold and the second sterilization temperature threshold, and the second temperature information is less than the first boiler temperature threshold, heating is started; When the above two situations are not true, if the first temperature information is less than the third sterilization temperature threshold, and the second temperature information is less than the second boiler temperature threshold, heating is started; otherwise, heating is stopped; S4： Open the air valve and drive the air pump to pump in hot air; The second temperature information is controlled to be within a preset second temperature range by stopping or resuming heating, and the preset drying time is continued.

2. The sterilization control method of a sterilizer according to claim 1, characterized in that: S1 is the preheating stage, and the first water addition logic in the preheating stage is specifically as follows: S201, obtaining a preheating temperature threshold list, and selecting elements in the list in sequence as preheating temperature thresholds; S202: If the second temperature information reaches the preheating temperature threshold, obtaining a first water adding time according to the preheating temperature threshold and a preset second mapping table; S203, completing the water adding operation according to the first water adding time, the preset first water adding interval and the first water adding round; S204: If the current preheating temperature threshold is not the last element in the preheating temperature threshold list, select the next element in the list as the preheating temperature threshold; S205, re-execute S202 until entering the next stage.

3. The sterilization control method of a sterilizer according to claim 1, characterized in that: S2 is the pressure regulation stage, and the second water addition logic in the pressure regulation stage is specifically as follows: S301, obtaining a pressure regulating temperature threshold list according to the sterilization mode, and selecting elements of the list in sequence as the pressure regulating temperature thresholds; S302: If the second temperature information reaches the pressure regulating temperature threshold, completing the water adding operation according to a preset second water adding time, a preset second water adding interval, and a preset second water adding round; S303: If the current voltage regulation temperature threshold is not the last element in the voltage regulation temperature threshold list, select the next element in the list as the voltage regulation temperature threshold; S304, re-execute S302 until entering the next stage.

4. The sterilization control method of a sterilizer according to claim 1, characterized in that: S3 is the sterilization stage, and the exhaust logic of the sterilization stage is specifically as follows: According to the sterilization mode, a first sterilization pressure threshold, a first exhaust time, a first exhaust temperature threshold, and a second exhaust time are obtained based on a preset third mapping table; Based on the preset first time period, the exhaust judgment is triggered: If the air pressure information is greater than the first sterilization pressure threshold, opening the air valve to exhaust air according to the first exhaust time; If the first temperature information is greater than the first exhaust temperature threshold, the gas valve is opened to exhaust according to the second exhaust time.

5. The sterilization control method of a sterilizer according to claim 1, characterized in that: S3 is the sterilization stage, and the third water addition logic in the sterilization stage is specifically as follows: According to the preset second time period, the water addition judgment is triggered: When the first sterilization mode is determined, a second water adding temperature threshold is obtained according to a preset fourth mapping table; if the second temperature information is greater than the second water adding temperature threshold, a water adding operation is completed according to a preset third water adding time; When it is judged to be the second sterilization mode, the first water adding temperature threshold and the second water adding temperature threshold are obtained according to the preset fourth mapping table; if the first temperature information is less than the first water adding temperature threshold, and the second temperature information is greater than the second water adding temperature threshold, then a water adding operation is completed according to the preset third water adding time.

6. The sterilization control method of a sterilizer according to claim 1, characterized in that: The S4 is a drying stage, and the drying operations performed are specifically as follows: According to the sterilization mode, a second temperature range is obtained according to a preset fifth mapping table; If the second temperature information is lower than the second temperature range, starting heating; If the second temperature information is higher than the second temperature range, stopping heating; Record the drying operation time until the preset drying time is reached.

7. A sterilization control system for a sterilizer, characterized in that: The system includes a memory and a processor. The memory includes a sterilization control method program for a sterilizer. When the sterilization control method program for the sterilizer is executed by the processor, the following steps are implemented: Based on the first temperature information of the sterilization box and the second temperature information and air pressure information of the boiler, four control stages are performed: S1： Open the gas valve and continue heating the boiler based on the first water addition logic until the second temperature information reaches a preset preheating temperature threshold; If the first temperature information reaches the preset preheating target temperature, enter S2; S2： Based on the sterilization mode, determining a first temperature range according to a preset first mapping table; The gas valve is closed, and based on the second water addition logic, the boiler is continuously heated until the second temperature information reaches a preset pressure regulating temperature threshold; If the first temperature information is higher than the first temperature range, heating is stopped and the gas valve is opened; If the first temperature information is lower than the first temperature range, heating is resumed and the gas valve is closed; S3： Based on a preset time period, executing exhaust logic according to the first temperature information and the air pressure information; Based on the sterilization mode, executing a third water addition logic according to the first temperature information and the second temperature information; When the first sterilization mode is determined, a first sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset sixth mapping table, wherein the first boiler temperature threshold is greater than the second boiler temperature threshold; If the first temperature information is greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the first boiler temperature threshold; If so, stop heating; If not, start heating; If the first temperature information is not greater than the first sterilization temperature threshold, determining whether the second temperature information is greater than the second boiler temperature threshold; If so, stop heating; If not, start heating; When the second sterilization mode is determined, a first sterilization temperature threshold, a second sterilization temperature threshold, a third sterilization temperature threshold, a first boiler temperature threshold, and a second boiler temperature threshold are obtained according to a preset seventh mapping table, wherein the first sterilization temperature threshold is less than the second sterilization temperature threshold, which is less than the third sterilization temperature threshold, and the first boiler temperature threshold is less than the second boiler temperature threshold; If the first temperature information is less than a first sterilization temperature threshold, starting heating; If the first temperature information is between the first sterilization temperature threshold and the second sterilization temperature threshold, and the second temperature information is less than the first boiler temperature threshold, heating is started; When the above two situations are not true, if the first temperature information is less than the third sterilization temperature threshold, and the second temperature information is less than the second boiler temperature threshold, heating is started; otherwise, heating is stopped; S4： Open the air valve and drive the air pump to pump in hot air; The second temperature information is controlled to be within a preset second temperature range by stopping or resuming heating, and the preset drying time is continued.

8. The sterilization control system of a sterilizer according to claim 7, characterized in that: S1 is the preheating stage, and the first water addition logic in the preheating stage is specifically as follows: S201, obtaining a preheating temperature threshold list, and selecting elements in the list in sequence as preheating temperature thresholds; S202: If the second temperature information reaches the preheating temperature threshold, obtaining a first water adding time according to the preheating temperature threshold and a preset second mapping table; S203, completing the water adding operation according to the first water adding time, the preset first water adding interval and the first water adding round; S204: If the current preheating temperature threshold is not the last element in the preheating temperature threshold list, select the next element in the list as the preheating temperature threshold; S205, re-execute S202 until entering the next stage.

9. The sterilization control system of a sterilizer according to claim 7, characterized in that: S2 is the pressure regulation stage, and the second water addition logic in the pressure regulation stage is specifically as follows: S301, obtaining a pressure regulating temperature threshold list according to the sterilization mode, and selecting elements of the list in sequence as the pressure regulating temperature thresholds; S302: If the second temperature information reaches the pressure regulating temperature threshold, completing the water adding operation according to a preset second water adding time, a preset second water adding interval, and a preset second water adding round; S303: If the current voltage regulation temperature threshold is not the last element in the voltage regulation temperature threshold list, select the next element in the list as the voltage regulation temperature threshold; S304, re-execute S302 until entering the next stage.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The computer-readable storage medium includes a sterilization control method program for a sterilizer. When the sterilization control method program for a sterilizer is executed by a processor, the steps of the sterilization control method for a sterilizer according to any one of claims 1 to 6 are implemented.

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