Method and apparatus for controlling a sterilizer, sterilizer, storage medium

Abstract

The application relates to the technical field of disinfection equipment, and discloses a method for controlling a disinfection machine, the disinfection machine comprising a heating device for adjusting the temperature of disinfection liquid to change the vaporization rate of the disinfection liquid; the method comprises the following steps: detecting the current concentration of the disinfection liquid; obtaining a target concentration of the disinfection liquid; and controlling the power of the heating device according to the current concentration and the target concentration. The current concentration of hydrogen peroxide disinfection liquid in a room is detected, and the target concentration of the hydrogen peroxide disinfection liquid is obtained. The target concentration is taken as a control standard, the power of the heating device is controlled according to the current concentration, the vaporization rate of the hydrogen peroxide disinfection liquid is adjusted, and the current concentration is changed. The vaporization rate of the disinfection liquid is adjusted by controlling the power of the heating device, so that the adjustment of the concentration of the disinfection liquid is realized in the process of vaporization of the hydrogen peroxide disinfection liquid. The application further discloses a device for controlling the disinfection machine, the disinfection machine and a storage medium.

Description

Technical Field

[0001] This application relates to the field of disinfection equipment technology, such as a method and apparatus for controlling a disinfection machine, a disinfection machine, and a storage medium. Background Technology

[0002] Currently, various methods are used to mix disinfectant into the air during room disinfection. However, the spraying rate of the disinfectant is crucial. A slow spraying rate results in a low concentration of disinfectant in the room, leading to poor disinfection. A fast spraying rate results in a high concentration of disinfectant in the room, which can corrode items.

[0003] In related technologies, a method for controlling a sterilizer includes: acquiring a first concentration setpoint and a first concentration value detected by a first ozone concentration sensor; controlling the ozone concentration of an ozone generator to increase based on the first concentration value being less than the first concentration setpoint; acquiring a first gas setpoint and a first gas flow rate detected by a flow sensor based on the first concentration value being greater than or equal to the first concentration setpoint; controlling the flow rate levels of a first air pump and a second air pump to increase based on the first gas flow rate being less than the first gas setpoint; and controlling the sterilizer to maintain its current state for a first preset time based on the first gas flow rate being greater than or equal to the first gas setpoint.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] This method can change the rate at which ozone enters the air by controlling the flow rates of two air pumps, thereby altering the ozone concentration. However, for hydrogen peroxide disinfectant, this disinfection machine and its control method cannot achieve the vaporization of the disinfectant or adjust its vaporization rate, resulting in an inability to adjust the concentration of the disinfectant. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a method and apparatus for controlling a disinfection machine, a disinfection machine, and a storage medium, so as to adjust the concentration of the disinfectant solution during the vaporization process of hydrogen peroxide disinfectant solution.

[0008] In some embodiments, the sterilizer includes a heating device for adjusting the temperature of the sterilizing solution to change the vaporization rate of the sterilizing solution; the method includes: detecting the current concentration of the sterilizing solution; obtaining a target concentration of the sterilizing solution; and controlling the power of the heating device based on the current concentration and the target concentration.

[0009] Optionally, the power of the heating device is controlled according to the current concentration and the target concentration, including: when the current concentration is not equal to the target concentration, controlling the power of the heating device according to the concentration difference between the current concentration and the target concentration; when the current concentration is equal to the target concentration, controlling the power of the heating device according to the vaporization rate of the disinfectant.

[0010] Optionally, controlling the power of the heating device based on the concentration difference between the current concentration and the target concentration includes: determining the concentration difference between the current concentration and the target concentration; determining an adjustment power corresponding to the concentration difference; determining the sum of the current power and the adjustment power of the heating device as a first target power; and controlling the heating device to operate at the first target power.

[0011] Optionally, obtaining the target concentration of the disinfectant includes: obtaining the target vaporization rate of the disinfectant; detecting the current running time; and determining the target concentration of the disinfectant based on the target vaporization rate and the current running time.

[0012] Optionally, controlling the power of the heating device according to the vaporization rate of the disinfectant includes: obtaining the current vaporization rate of the disinfectant; and controlling the power of the heating device according to the current vaporization rate and the target vaporization rate.

[0013] Optionally, controlling the power of the heating device based on the current vaporization rate and the target vaporization rate includes: determining the rate difference between the current vaporization rate and the target vaporization rate; determining a second target power of the heating device based on the rate difference; and controlling the heating device to operate at the second target power.

[0014] Optionally, after controlling the power of the heating device based on the current concentration and the target concentration, the method further includes: obtaining the current vaporization rate of the disinfectant; obtaining the rated vaporization rate of the disinfectant; and issuing an alarm reminder if the current vaporization rate exceeds the rated vaporization rate for a set period of time.

[0015] In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to execute the method described above for controlling a sterilizer when the program instructions are executed.

[0016] In some embodiments, the disinfection machine includes: a liquid storage chamber containing disinfectant; a pressure-reducing chamber connected to the liquid storage chamber; a first pipeline, one end of which is below the liquid surface in the liquid storage chamber and the other end of which is located in the pressure-reducing chamber; a second pipeline, one end of which is above the liquid surface in the liquid storage chamber and the other end of which is connected to the room through the pressure-reducing chamber and connected to the first pipeline in the pressure-reducing chamber; a heating device disposed in the pressure-reducing chamber for heating the pressure-reducing chamber to vaporize the disinfectant in the first pipeline; a pressurizing device connected to the liquid storage chamber, with the connection point above the liquid surface, for injecting air into the liquid storage chamber to drive the vaporized disinfectant into the room through the second pipeline; and the aforementioned device for controlling the disinfection machine.

[0017] In some embodiments, the storage medium stores program instructions that, when executed, perform the method described above for controlling the sterilizer.

[0018] The method and apparatus for controlling a sterilizer, the sterilizer itself, and the storage medium provided in this disclosure can achieve the following technical effects:

[0019] The sterilizer has an internal storage chamber for temporarily storing hydrogen peroxide disinfectant solution drawn from the outside. A pressurizing device forces air into the storage chamber, compressing the air inside and creating a high-speed airflow in the second pipeline. This high-speed airflow creates negative pressure in the first pipeline within the depressurization chamber, drawing the hydrogen peroxide disinfectant solution from the storage chamber into the first pipeline within the depressurization chamber. Since hydrogen peroxide has a low boiling point under low pressure, the temperature of the depressurization chamber is increased by controlling the heating device, achieving vaporization of the hydrogen peroxide. The current concentration of the hydrogen peroxide disinfectant solution in the room is detected, and a target concentration is obtained. Using the target concentration as a control standard, the power of the heating device is adjusted based on the current concentration, thereby adjusting the vaporization rate of the hydrogen peroxide disinfectant solution and thus changing the current concentration. By controlling the power of the heating device to adjust the vaporization rate of the disinfectant solution, the concentration of the disinfectant solution can be adjusted during the vaporization process.

[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0022] Figure 1-1 This is a schematic diagram of the structure of a sterilizer provided in an embodiment of this disclosure;

[0023] Figure 1-2 This is a schematic diagram of another sterilization machine provided in an embodiment of this disclosure;

[0024] Figure 1-3 This is a cross-sectional view of a sterilizer provided in an embodiment of this disclosure;

[0025] Figure 2 This is a schematic diagram of a method for controlling a sterilizer provided in an embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of another method for controlling a sterilizer provided in an embodiment of this disclosure;

[0027] Figure 4 This is a schematic diagram of another method for controlling a sterilizer provided in an embodiment of this disclosure;

[0028] Figure 5 This is a schematic diagram of another method for controlling a sterilizer provided in an embodiment of this disclosure;

[0029] Figure 6 This is a schematic diagram of another method for controlling a sterilizer provided in an embodiment of this disclosure;

[0030] Figure 7 This is a schematic diagram of another method for controlling a sterilizer provided in an embodiment of this disclosure;

[0031] Figure 8 This is a schematic diagram of another method for controlling a sterilizer provided in an embodiment of this disclosure;

[0032] Figure 9 This is a schematic diagram of a device for controlling a sterilizer provided in an embodiment of this disclosure.

[0033] Figure label:

[0034] 11: Liquid storage chamber; 12: Pressure reducing chamber; 13: First pipeline; 14: Second pipeline; 15: Heating device; 16: Pressurizing device; 17: Liquid pump; 18: Storage container; 41: Processor; 42: Memory; 43: Communication interface; 44: Bus. Detailed Implementation

[0035] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0036] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0037] Unless otherwise stated, the term "multiple" means two or more.

[0038] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0039] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0040] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0041] Combination Figures 1-1 to 1-3 As shown, this embodiment of the present disclosure provides a disinfection machine, including a liquid storage chamber 11, a pressure-reducing chamber 12, a first pipeline 13, a second pipeline 14, a heating device 15, a pressurizing device 16, and a pump 17. The liquid storage chamber 11 stores disinfectant. The pressure-reducing chamber 12 is connected to the liquid storage chamber 11. One end of the first pipeline 13 is below the liquid surface in the liquid storage chamber 11, and the other end is located in the pressure-reducing chamber 12. One end of the second pipeline 14 is above the liquid surface in the liquid storage chamber 11, and the other end communicates with the room through the pressure-reducing chamber 12, connecting to the first pipeline 13 in the pressure-reducing chamber 12. The heating device 15 is disposed in the pressure-reducing chamber 12 (e.g., around the periphery of the pressure-reducing chamber 12) to heat the pressure-reducing chamber 12, causing the disinfectant in the first pipeline 13 to vaporize. The pressurizing device 16 is connected to the liquid storage chamber 11, with the connection point above the liquid surface, and is used to pump air into the liquid storage chamber 11, driving the vaporized disinfectant through the second pipeline 14 into the room. One end of the pump 17 is connected to the storage chamber 11, and the other end is connected to the external disinfectant storage container 18, which is used to draw disinfectant from the storage container 18 into the storage chamber 11.

[0042] Optionally, the sterilizer also includes a first liquid level sensor, a second liquid level sensor, and a concentration sensor. The first liquid level sensor is disposed in the storage container 18 and is used to detect the liquid level of the sterilizer in the storage container 18. The second liquid level sensor is disposed in the storage chamber 11 and is used to detect the liquid level of the sterilizer in the storage chamber 11. The concentration sensor can be disposed in the room or in the sterilizer and is used to detect the concentration of the sterilizer in the room.

[0043] When the sterilizer is working, the pump 17 draws disinfectant from the storage container 18 into the storage chamber 11. The pressurizing device 16 injects air into the storage chamber 11, making the pressure in the storage chamber 11 higher than the air pressure in the room. Under the influence of air pressure, the air in the storage chamber 11 flows into the room through the second pipe 14, forming a high-speed airflow. Since the first pipe 13 and the second pipe 14 are connected in the pressure-reducing chamber 12, the high-speed airflow creates a negative pressure in the first pipe 13 within the pressure-reducing chamber 12, thereby driving the disinfectant from the storage chamber 11 into the first pipe 13 within the pressure-reducing chamber 12. Because the pressure in the first pipe 13 within the pressure-reducing chamber 12 is low, the boiling point of the disinfectant is low. By controlling the heating device 15 to raise the temperature of the pressure-reducing chamber 12, the disinfectant is vaporized. Driven by the high-speed airflow in the second pipe 14, the speed of Brownian motion of the vaporized disinfectant increases, and it diffuses into the room through the second pipe 14. The temperature of the disinfectant is adjusted by the heating device 15, thus changing the vaporization rate of the disinfectant. The flow rate of the disinfectant is adjusted by the pressurizing device 16, thereby changing the vaporization rate of the disinfectant.

[0044] Heating device 15 is a device that changes the heating temperature by adjusting the power; for example, it can be an electric heating tube, heating wire, or heating element. Since the object being heated is hydrogen peroxide disinfectant, the heating temperature is generally maintained between 90°C and 150°C. Pressurizing device 16 is a device that changes the amount of air compressed per unit time by adjusting the power; for example, it can be an air pump, inflation pump, or other air pump.

[0045] Combination Figures 1-1 to 1-3 The present disclosure provides a method for controlling the sterilizer, as shown in the embodiment of the sterilizer. Figure 2 As shown, the method includes:

[0046] S230, the disinfection machine detects the current concentration of the disinfectant solution.

[0047] S240, the disinfection machine obtains the target concentration of disinfectant.

[0048] The S250 sterilizer controls the power of the heating device based on the current concentration and the target concentration.

[0049] The method for controlling a disinfection machine according to embodiments of this disclosure includes a storage chamber inside the machine for temporarily storing hydrogen peroxide disinfectant solution drawn from the outside. A pressurizing device injects air into the storage chamber, compressing the air inside and creating a high-speed airflow in a second pipeline. This high-speed airflow creates a negative pressure in the first pipeline within the depressurization chamber, causing the hydrogen peroxide disinfectant solution to flow from the storage chamber into the first pipeline within the depressurization chamber. Since hydrogen peroxide has a low boiling point under low pressure, the temperature of the depressurization chamber is increased by controlling a heating device to achieve vaporization of the hydrogen peroxide. A concentration sensor detects the current concentration of the hydrogen peroxide disinfectant solution in the room and obtains the target concentration. Using the target concentration as a control standard, the power of the heating device is controlled according to the current concentration to adjust the vaporization rate of the hydrogen peroxide disinfectant solution, thereby changing the current concentration. By controlling the power of the heating device to adjust the vaporization rate of the disinfectant solution, the concentration of the disinfectant solution is adjusted during the vaporization process of the hydrogen peroxide disinfectant solution.

[0050] Combination Figure 3 As shown in the embodiments of this disclosure, another method for controlling a sterilizer is provided, comprising:

[0051] S230, the disinfection machine detects the current concentration of the disinfectant solution.

[0052] S241, the sterilizer obtains the target vaporization rate of the disinfectant.

[0053] S242, the disinfection machine detects the current running time.

[0054] S243, the sterilizer determines the target concentration of the disinfectant based on the target vaporization rate and the current running time.

[0055] The S250 sterilizer controls the power of the heating device based on the current concentration and the target concentration.

[0056] The method for controlling a disinfection machine provided in this disclosure determines the target vaporization rate of hydrogen peroxide disinfectant according to user needs. The current operating time is detected to determine the expected concentration of disinfectant in the room at that time. By determining the target concentration of disinfectant at the current operating time and using this as a control standard, the power of the heating device is adjusted according to the current concentration to achieve the target concentration, thus realizing the adjustment of the disinfectant concentration.

[0057] Optionally, in step S241, the sterilizer obtains the target vaporization rate of the disinfectant, including: the sterilizer obtaining a set room volume; the sterilizer obtaining a set disinfection time; and the sterilizer determining the target vaporization rate of the disinfectant based on the set room volume and the set disinfection time. Thus, by determining the target vaporization rate of the disinfectant based on the set room volume and the set disinfection time, the required vaporization rate for completing disinfection within the set disinfection time is determined. The target concentration is determined by accurately obtaining the target vaporization rate, serving as the basis for controlling the power of the heating device, thereby improving the accuracy of disinfectant concentration adjustment.

[0058] Optionally, the disinfection machine determines the target vaporization rate of the disinfectant based on the set room volume and set disinfection time, including: determining the final consumption of the disinfectant based on the set room volume and final concentration. The disinfection machine determines the target vaporization rate of the disinfectant as the ratio of the final consumption to the set disinfection time. The final concentration is the expected content of disinfectant in the room upon completion of disinfection (expressed as a percentage or density), which is pre-fixed and stored in the disinfection machine. Thus, based on the set room volume and final concentration, the total amount of disinfectant to be consumed can be determined. Using the ratio of the total amount to the set disinfection time as the target vaporization rate for reference allows for accurate calculation of the expected amount of hydrogen peroxide consumed per unit time, thereby improving the accuracy of disinfectant concentration adjustment.

[0059] For example, in calculating the target vaporization rate, the room volume is set to 1m³. 3 The disinfection time was set at 10 minutes, and the final concentration was 60 mg / m³. 3 Therefore, the final consumption is 60 mg, and the target vaporization rate is 6 mg / min. The above values ​​are for illustrative purposes only; actual values ​​need to be adjusted based on requirements such as accuracy and final concentration.

[0060] Optionally, in step S243, the sterilizer determines the target concentration of the disinfectant based on the target vaporization rate and the current running time, including: the sterilizer determining the target consumption of the disinfectant as the product of the target vaporization rate and the current running time; and the sterilizer determining the target concentration of the disinfectant as the quotient of the target consumption and the set room volume. In this way, the expected concentration of the disinfectant in the room can be accurately calculated based on the target vaporization rate, the current running time, and the set room volume, so as to control the power of the heating device and adjust the concentration of the disinfectant.

[0061] For example, the target vaporization rate is 6 mg / min, the current running time is 2 min, and the room volume is set to 1 m³. 3 Therefore, the target concentration is 12 mg / m³. 3 .

[0062] Optionally, in step S250, the sterilizer controls the power of the heating device based on the current concentration and the target concentration, including: when the current concentration is not equal to the target concentration, the sterilizer controls the power of the heating device based on the concentration difference between the current concentration and the target concentration. When the current concentration is equal to the target concentration, the sterilizer controls the power of the heating device based on the vaporization rate of the disinfectant. Thus, when the current concentration is not equal to the target concentration, the power of the heating device is controlled with priority on reaching the target concentration. At this time, the current vaporization rate and the target vaporization rate are not equal, thereby changing the current concentration. When the current concentration is equal to the target concentration, the current vaporization rate is made to reach the target vaporization rate, thereby maintaining the current concentration at the target concentration. By prioritizing adjustment to reach concentration equilibrium, and then making vaporization rate equilibrium a secondary adjustment under concentration equilibrium, the current concentration is stabilized at the target concentration.

[0063] Combination Figure 4 As shown in the embodiments of this disclosure, another method for controlling a sterilizer is provided, comprising:

[0064] S230, the disinfection machine detects the current concentration of the disinfectant solution.

[0065] S240, the disinfection machine obtains the target concentration of disinfectant.

[0066] S251, when the current concentration is not equal to the target concentration, the sterilizer determines the concentration difference between the current concentration and the target concentration.

[0067] S252, the sterilizer determines the adjustment power corresponding to the concentration difference based on the concentration difference.

[0068] S253, the sterilizer determines the sum of the current power of the heating device and the adjusted power as the first target power.

[0069] S254, the sterilizer controls the heating device to operate at the first target power and returns to step S230.

[0070] S255, when the current concentration equals the target concentration, the sterilizer obtains the current vaporization rate of the disinfectant.

[0071] S256, the sterilizer controls the power of the heating device based on the current vaporization rate and the target vaporization rate, and returns to step S230.

[0072] The method for controlling a sterilizer provided in this disclosure, when the current concentration is not equal to the target concentration, controls the first target power of the heating device based on the concentration difference to bring the current concentration to the target concentration. When the current concentration equals the target concentration, the second target power of the heating device is controlled based on the current vaporization rate and the target vaporization rate to bring the current vaporization rate to the target vaporization rate. By prioritizing adjustment to achieve concentration equilibrium, and then prioritizing adjustment to achieve vaporization rate equilibrium under concentration equilibrium, the current concentration is stabilized at the target concentration.

[0073] The statement that the current concentration equals the target concentration means that they are equal within the allowable error range, not that they are completely equal.

[0074] Since the dimensions of the storage chamber, heating device, first pipeline, and second pipeline may vary depending on different requirements, the relationship between the adjustment power and the concentration difference can be calculated or experimentally determined based on the actual dimensions. For example, with a detection interval (the interval between two adjacent controls) of 1 minute, when the concentration difference is greater than 0 and less than 10% of the target concentration, the adjustment power is -10W. When the concentration difference is greater than or equal to 10% of the target concentration and less than 30% of the target concentration, the adjustment power is -30W. When the concentration difference is greater than or equal to 30% of the target concentration, the adjustment power is -50W. When the concentration difference is less than 0 and greater than -10% of the target concentration, the adjustment power is 10W. When the concentration difference is less than or equal to -10% of the target concentration and greater than -30% of the target concentration, the adjustment power is 30W. When the concentration difference is less than or equal to -30% of the target concentration, the adjustment power is 50W. The above values ​​are only illustrative examples; actual values ​​need to be adjusted according to the detection interval and the model of the heating device, etc.

[0075] Optionally, in step S255, the sterilizer obtains the current vaporization rate of the disinfectant, including: the sterilizer obtaining the volume difference of the disinfectant in the storage chamber; the sterilizer obtaining the current consumption volume of the disinfectant in the storage container; and the sterilizer determining the current vaporization rate of the disinfectant based on the volume difference and the current consumption volume. Thus, during the vaporization of the hydrogen peroxide disinfectant, the disinfectant in the storage chamber is consumed on one hand and replenished on the other by a pump. When the consumption and replenishment of the disinfectant are unbalanced, a volume difference exists. The volume of disinfectant replenished to the storage chamber is determined by the current consumption volume in the storage container (replenished by the storage chamber). The difference between the consumption and replenishment of the disinfectant is determined by the volume difference of the disinfectant in the storage chamber. Since the current vaporization rate of the disinfectant can be determined based on the volume difference and the current consumption volume, the accuracy of the hydrogen peroxide disinfectant vaporization rate control is improved.

[0076] Optionally, the sterilizer obtains the volume difference value of the disinfectant in the storage chamber, including: obtaining the current volume of the disinfectant in the storage chamber; obtaining the previous volume of the disinfectant in the storage chamber; and determining the difference between the current volume and the previous volume as the volume difference value. In this way, since the storage chamber has a regular shape, the current volume of the disinfectant can be calculated based on the liquid level detected by the second liquid level sensor. By calculating the volume difference value, the difference between the consumption and replenishment of disinfectant in the storage chamber is determined, thereby determining the current vaporization rate of the disinfectant and improving the accuracy of rate control.

[0077] Optionally, the sterilizer obtains the current consumed volume of disinfectant in the storage container, including: obtaining the current liquid level of the disinfectant in the storage container; obtaining the previous liquid level of the disinfectant in the storage container; determining the height difference between the current liquid level and the previous liquid level; and determining the current consumed volume based on the height difference. In this way, since the storage container has a regular shape, the reduced volume of disinfectant can be calculated using a formula corresponding to the shape, based on the height difference. By accurately calculating the volume of disinfectant replenished, the current vaporization rate is determined more precisely, improving the accuracy of hydrogen peroxide disinfectant vaporization rate control.

[0078] Optionally, in step S256, the sterilizer controls the power of the heating device based on the current vaporization rate and the target vaporization rate, including: the sterilizer determining the rate difference between the current vaporization rate and the target vaporization rate; the sterilizer determining a second target power for the heating device based on the rate difference; and the sterilizer controlling the heating device to operate at the second target power. Thus, when the current concentration equals the target concentration, the second target power of the heating device is controlled based on the rate difference, ensuring that the current vaporization rate reaches the target vaporization rate. By controlling the power of the heating device based on the rate difference, the accuracy of the hydrogen peroxide disinfectant vaporization rate control is improved.

[0079] Optionally, the sterilizer determines the second target power of the heating device based on the rate difference. This is achieved by the sterilizer using proportional-integral-differential (PID) calculations based on the rate difference. By using the rate difference as a deviation and determining the second target power of the heating device through PID calculations, it is possible to rapidly adjust the current vaporization rate while reducing overshoot. Adjusting the power of the heating device regulates the flow rate of the hydrogen peroxide disinfectant, thereby achieving equilibrium during the vaporization process.

[0080] Combination Figure 5 As shown in the embodiments of this disclosure, another method for controlling a sterilizer is provided, comprising:

[0081] S230, the disinfection machine detects the current concentration of the disinfectant solution.

[0082] S240, the disinfection machine obtains the target concentration of disinfectant.

[0083] The S250 sterilizer controls the power of the heating device based on the current concentration and the target concentration.

[0084] The S260 sterilizer controls the power of the pressurization device based on the current concentration and the target concentration.

[0085] The method for controlling a sterilizer provided in this disclosure alters the pressure within the storage chamber using the power of the pressurizing device, thereby affecting the vaporization rate of the disinfectant. If only the heating device is adjusted without adjusting the power of the pressurizing device, the vaporization rate will remain unchanged once the heating temperature reaches a certain value due to the limitation of gas flow velocity in the second pipeline. By coordinating the pressurizing and heating devices to adjust the vaporization rate, the disinfectant decomposition efficiency is improved, eliminating the limitation of gas pressure on the current vaporization rate. Adjusting the power of the pressurizing device regulates the flow velocity of the hydrogen peroxide disinfectant, thereby adjusting the disinfectant concentration during the vaporization process.

[0086] Optionally, in step S260, the sterilizer controls the power of the pressurizing device based on the current concentration and the target concentration, including: when the current concentration is not equal to the target concentration, the sterilizer determines the third target power of the pressurizing device based on the concentration difference using proportional-integral-differential (PID) calculations. When the current concentration is equal to the target concentration, the sterilizer determines the third target power of the pressurizing device based on the rate difference using PID calculations. The sterilizer controls the pressurizing device to operate at the third target power. Thus, by using the concentration difference or rate difference as a deviation and determining the third target power of the pressurizing device using PID calculations under different conditions, it is possible to quickly adjust the current vaporization rate while reducing overshoot. By adjusting the power of the pressurizing device, the flow rate of the hydrogen peroxide disinfectant is adjusted, thereby adjusting the concentration of the disinfectant during the vaporization process of the hydrogen peroxide disinfectant.

[0087] Combination Figure 6 As shown in the embodiments of this disclosure, another method for controlling a sterilizer is provided, comprising:

[0088] S230, the disinfection machine detects the current concentration of the disinfectant solution.

[0089] S240, the disinfection machine obtains the target concentration of disinfectant.

[0090] The S250 sterilizer controls the power of the heating device based on the current concentration and the target concentration.

[0091] S270, the sterilizer obtains the current vaporization rate of the disinfectant.

[0092] S280, the sterilizer obtains the rated vaporization rate of the disinfectant solution.

[0093] S290: If the current vaporization rate exceeds the rated vaporization rate for a set period of time, the sterilizer will issue an alarm.

[0094] The method for controlling a sterilizer provided in this disclosure determines the rated vaporization rate (maximum vaporization rate multiplied by a safety factor, for example, 0.9) based on the sterilizer's model. During vaporization rate adjustment, if the current vaporization rate consistently exceeds the rated vaporization rate within a set time, it indicates air circulation in the room, preventing the target concentration from being reached. Continuing operation under these conditions not only wastes disinfectant and damages the sterilizer but also reduces the lifespan of internal components due to operation at a power level exceeding the rated vaporization rate. By issuing an alarm when air circulation occurs in the room, the user is informed that the room needs to be sealed, thus improving the sterilization effect and extending the sterilizer's lifespan.

[0095] The aforementioned set time refers to a pre-set time value, such as 3 minutes, 5 minutes, or 7 minutes.

[0096] Combination Figure 7 As shown in the embodiments of this disclosure, another method for controlling a sterilizer is provided, comprising:

[0097] S200, the sterilizer receives the set room volume input by the user.

[0098] S280, the sterilizer obtains the rated vaporization rate of the disinfectant solution.

[0099] S201, the disinfection machine determines the minimum disinfection time based on the set room volume and rated vaporization rate.

[0100] S202, the minimum vaporization rate at which the disinfection machine obtains the disinfectant.

[0101] S203, the sterilizer determines the maximum sterilization time based on the set room volume and minimum vaporization rate.

[0102] S204, the sterilizer receives the user's input of the set sterilization time.

[0103] S205, if the set disinfection time is less than the minimum disinfection time or greater than the maximum disinfection time, the disinfection machine issues an error reminder and returns to step S204.

[0104] S230: When the set disinfection time is greater than or equal to the minimum disinfection time and less than or equal to the maximum disinfection time, the disinfection machine detects the current concentration of the disinfectant solution.

[0105] S240, the disinfection machine obtains the target concentration of disinfectant.

[0106] The S250 sterilizer controls the power of the heating device based on the current concentration and the target concentration.

[0107] The method for controlling a disinfection machine provided in this disclosure has a minimum vaporization rate (not considering shutdown) and a rated vaporization rate during the vaporization of hydrogen peroxide disinfectant. For example, the heating device operates at a temperature of 90–150°C during vaporization. The vaporization rate at 90°C is the minimum vaporization rate, and the vaporization rate at 150°C is the maximum vaporization rate. The rated vaporization rate is determined by multiplying the maximum vaporization rate by a safety factor. Within a set room volume, there is a maximum disinfection time and a minimum disinfection time based on the minimum and rated vaporization rates. When the user-inputted set disinfection time is less than the minimum disinfection time, the disinfection machine cannot complete disinfection within that time and issues an error reminder to the user to increase the set disinfection time. When the user-inputted set disinfection time is greater than the maximum disinfection time, the disinfection machine will complete disinfection prematurely, leading to increased wear and tear and idle time. An error reminder will then be issued to the user to decrease the set disinfection time. By reminding the user when the input set disinfection time does not meet the requirements, room disinfection is achieved.

[0108] Combination Figure 8 As shown in the embodiments of this disclosure, another method for controlling a sterilizer is provided, comprising:

[0109] S200, the sterilizer receives the set room volume input by the user.

[0110] S204, the sterilizer receives the user's input of the set sterilization time.

[0111] The S210 disinfection machine determines the target liquid level height based on the set room volume and set disinfection time.

[0112] S211, the disinfection machine detects the initial liquid level of the disinfectant in the storage container.

[0113] S212, if the initial liquid level is lower than the target liquid level, the sterilizer reminds the user to add disinfectant and returns to step S211.

[0114] S220, when the initial liquid level is greater than or equal to the target liquid level, the sterilizer controls the pump to operate at the first initial power.

[0115] S221, the sterilizer controls the pressurization device to operate at the second initial power.

[0116] S222, the sterilizer controls the heating device to operate at the third initial power.

[0117] S242, the disinfection machine detects the current running time.

[0118] S230, if the current running time is less than the set disinfection time, the disinfection machine detects the current concentration of the disinfectant and executes step S240.

[0119] S231: If the current running time is greater than or equal to the set disinfection time, the disinfection machine will stop running, and the disinfection process will end.

[0120] S240, the disinfection machine obtains the target concentration of disinfectant.

[0121] S250, the sterilizer controls the power of the heating device according to the current concentration and the target concentration, and returns to step S242.

[0122] The method for controlling a disinfection machine provided in this disclosure initializes upon power-on, receiving user input of the set room volume and set disinfection time. Before the disinfection machine starts running, the initial liquid level in the storage container is detected by a first liquid level sensor to determine the total amount of disinfectant. If the initial liquid level is lower than the target liquid level, the total amount of disinfectant is insufficient and needs to be replenished. By reminding the user, disinfectant is replenished in a timely manner to ensure that the hydrogen peroxide concentration in the room reaches the required level when the set disinfection time is reached. During initialization, the pump, pressurizing device, and heating device are controlled to operate at their respective initial power to prepare for disinfection. If the current running time is less than or equal to the set disinfection time, disinfection is not yet complete and needs to continue. If the current running time is greater than the set disinfection time, disinfection is complete, but continuing to vaporize the disinfectant would result in an excessively high concentration of disinfectant that would corrode items, and the disinfection machine will stop running. By reminding the user when the disinfectant is insufficient during initialization and stopping operation when the set disinfection time is reached, the vaporization of the disinfectant is ensured to meet the requirements.

[0123] Combination Figure 9 As shown, this disclosure provides an apparatus for controlling a sterilizer, including a processor 41 and a memory 42. Optionally, the apparatus may further include a communication interface 43 and a bus 44. The processor 41, communication interface 43, and memory 42 can communicate with each other via the bus 44. The communication interface 43 can be used for information transmission. The processor 41 can call logical instructions in the memory 42 to execute the method for controlling the sterilizer described in the above embodiment.

[0124] Furthermore, the logical instructions in the aforementioned memory 42 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0125] The memory 42, as a storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 41 executes functional applications and data processing by running the program instructions / modules stored in the memory 42, thereby implementing the method for controlling the sterilizer in the above embodiments.

[0126] The memory 42 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 42 may include high-speed random access memory and may also include non-volatile memory.

[0127] This disclosure provides a sterilization machine, including the aforementioned device for controlling the sterilization machine.

[0128] This disclosure provides a storage medium storing computer-executable instructions configured to execute the above-described method for controlling a sterilizer.

[0129] The aforementioned storage medium can be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0130] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0131] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0132] 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 the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0133] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely 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. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. 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 may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0134] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling a sterilizer, characterized in that, The sterilizer includes a heating device for adjusting the temperature of the sterilizing solution to change its vaporization rate, and a pressurizing device for adjusting the flow rate of the sterilizing solution to change its vaporization rate; the method includes: Detect the current concentration of the disinfectant; To obtain the target concentration of the disinfectant; Control the power of the heating device according to the current concentration and the target concentration; Control the power of the pressurization device according to the current concentration and the target concentration; The method of controlling the power of the heating device based on the current concentration and the target concentration includes: controlling the power of the heating device based on the concentration difference between the current concentration and the target concentration when the current concentration is not equal to the target concentration; and controlling the power of the heating device based on the vaporization rate of the disinfectant when the current concentration is equal to the target concentration. Based on the current concentration and the target concentration, control the power of the pressurizing device, including: when the current concentration is not equal to the target concentration, determining the third target power of the pressurizing device through proportional-integral-differential calculation based on the concentration difference between the current concentration and the target concentration; when the current concentration is equal to the target concentration, determining the third target power of the pressurizing device through proportional-integral-differential calculation based on the rate difference between the current vaporization rate and the target vaporization rate; and controlling the pressurizing device to operate at the third target power.

2. The method according to claim 1, characterized in that, Controlling the power of the heating device based on the concentration difference between the current concentration and the target concentration includes: Determine the concentration difference between the current concentration and the target concentration; Based on the concentration difference, determine the adjustment power corresponding to the concentration difference; The sum of the current power and the adjusted power of the heating device is determined as the first target power; Control the heating device to operate at the first target power.

3. The method according to claim 1, characterized in that, To obtain the target concentration of the disinfectant, including: To obtain the target vaporization rate of the disinfectant; Detect current running time; The target concentration of the disinfectant is determined based on the target vaporization rate and the current running time.

4. The method according to claim 3, characterized in that, The target vaporization rate of the disinfectant includes: Obtain the set room volume; Obtain the set disinfection time; The target vaporization rate of the disinfectant is determined based on the set room volume and the set disinfection time.

5. The method according to claim 3, characterized in that, Controlling the power of the heating device based on the vaporization rate of the disinfectant includes: Obtain the current vaporization rate of the disinfectant; The power of the heating device is controlled based on the current vaporization rate and the target vaporization rate.

6. The method according to claim 5, characterized in that, Based on the current vaporization rate and the target vaporization rate, the power of the heating device is controlled, including: Determine the rate difference between the current vaporization rate and the target vaporization rate; The second target power of the heating device is determined based on the rate difference; Control the heating device to operate at the second target power.

7. The method according to any one of claims 1 to 6, characterized in that, After controlling the power of the heating device based on the current concentration and the target concentration, the process also includes: Obtain the current vaporization rate of the disinfectant; To obtain the rated vaporization rate of the disinfectant; An alarm will be issued if the current vaporization rate exceeds the rated vaporization rate for a set period of time.

8. A device for controlling a sterilizer, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the method for controlling a sterilizer as described in any one of claims 1 to 7.

9. A sterilization machine, characterized in that, include: The liquid storage chamber (11) contains disinfectant; The pressure-reducing chamber (12) is connected to the liquid storage chamber (11); The first pipeline (13) has one end located below the liquid surface of the liquid storage chamber (11) and the other end located in the pressure reducing chamber (12). The second pipeline (14) has one end located above the liquid surface of the storage chamber (11) and the other end connected to the room through the pressure reducing chamber (12), and is connected to the first pipeline (13) in the pressure reducing chamber (12); A heating device (15) is installed in the pressure-reducing chamber (12) to heat the pressure-reducing chamber (12) so that the disinfectant in the first pipeline (13) vaporizes; A pressurizing device (16), connected to the liquid storage chamber (11), with the connection point above the liquid surface, is used to inject air into the liquid storage chamber (11) to drive the vaporized disinfectant through the second pipe (14) into the room; and, The apparatus for controlling a sterilizer as described in claim 8.

10. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the method for controlling the sterilizer as described in any one of claims 1 to 7.

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