A method of sterilization based on VHP

Abstract

The application relates to the technical field of sterilization, and relates to a VHP-based sterilization method and system, which comprises the following steps: obtaining initial VHP based on a VHP generation instruction; injecting the initial VHP into a sterilization pipeline by using an emitting device to obtain a VHP sterilization pipeline; obtaining a target VHP concentration set based on a VHP concentration determination instruction and the VHP sterilization pipeline; obtaining an updated VHP sterilization pipeline based on a VHP concentration adjustment instruction and the target VHP concentration set; obtaining a sterilization CT value based on the updated VHP sterilization pipeline and a sterilization time, obtaining a sterilization end signal based on the sterilization CT value and a target CT value; based on the sterilization end signal, using a controller to make the emitting device closed to obtain a standby emitting device, obtaining a to-be-processed sterilization pipeline based on the standby emitting device and the updated VHP sterilization pipeline, using a VHP decomposer to perform waste gas treatment on the to-be-processed sterilization pipeline to obtain a target sterilization pipeline; and realizing VHP sterilization based on the target sterilization pipeline. The application can realize accurate control of the VHP sterilization pipeline.

Description

Technical Field

[0001] This invention relates to the field of sterilization technology, and in particular to a sterilization method and system based on VHP. Background Technology

[0002] With the development of the modern pharmaceutical and biotechnology industries, VHP sterilization technology has been widely used in sterilization of aseptic production areas, isolators, and the surfaces of critical equipment. Correspondingly, as the core component for the transmission and distribution of vaporized hydrogen peroxide, the structural design and the rationality of the sterilization method of the sterilization pipeline play an indispensable role in the sterilization effect, system stability, and operating costs.

[0003] Currently, VHP sterilization processes mostly employ fixed program control or manual operation based on empirical parameters.

[0004] While the methods described above can meet basic sterilization requirements to some extent, their design of sterilization pipelines does not adequately consider the matching relationship between fluid dynamics and vaporization efficiency. This leads to increased VHP consumption and energy consumption during sterilization. Therefore, achieving accurate control of VHP sterilization pipelines has become an urgent problem to be solved. Summary of the Invention

[0005] This invention provides a VHP-based sterilization method and a computer-readable storage medium, the main purpose of which is to achieve accurate control of VHP sterilization pipelines.

[0006] To achieve the above objectives, the present invention provides a VHP-based sterilization method, comprising:

[0007] The sterilization control environment is confirmed based on the sterilization control command. The sterilization control environment includes a sterilization control system and a pre-constructed sterilization pipeline. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit and a VHP concentration adjustment unit.

[0008] Receive a VHP generation instruction from the VHP generation unit, and obtain an initial VHP based on the VHP generation instruction;

[0009] Initial VHP is injected into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline;

[0010] Receive a VHP concentration measurement command from the VHP concentration measurement unit, and obtain the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline;

[0011] Receive VHP concentration adjustment command from VHP concentration adjustment unit, and obtain updated VHP sterilization pipeline based on the VHP concentration adjustment command and target VHP concentration set;

[0012] The sterilization CT value is obtained based on the updated VHP sterilization pipeline and the preset sterilization time, and the sterilization end signal is obtained based on the sterilization CT value and the preset target CT value.

[0013] Based on the sterilization end signal, the transmitting device is turned off using a pre-built controller to obtain a standby transmitting device. Based on the standby transmitting device and the updated VHP sterilization pipeline, the sterilization pipeline to be processed is obtained. The waste gas of the sterilization pipeline to be processed is treated using a pre-built VHP decomposer to obtain the target sterilization pipeline.

[0014] VHP sterilization is achieved based on the target sterilization pipeline.

[0015] Optionally, obtaining the initial VHP based on the VHP generation instruction includes:

[0016] Hydrogen peroxide solution is obtained based on the VHP generation command;

[0017] The vaporization device is obtained, and the temperature of the vaporization device is monitored using a pre-built temperature sensor to obtain the actual temperature value;

[0018] Obtain the optimal vaporization temperature range, which includes the maximum vaporization temperature value and the minimum vaporization temperature value;

[0019] The target vaporization temperature value is obtained based on the optimal vaporization temperature range, wherein the target vaporization temperature value is the average of the maximum vaporization temperature value and the minimum vaporization temperature value.

[0020] The temperature control value is obtained based on the actual temperature value and the target vaporization temperature value;

[0021] Based on the temperature control value, the preset control algorithm, and the vaporization device, the vaporization device is updated.

[0022] The initial VHP is obtained based on the hydrogen peroxide solution and the updated vaporization device.

[0023] Optionally, the step of injecting initial VHP into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline includes:

[0024] A pre-set compressed inert gas is injected into the sterilization pipeline using a launching device to renew the sterilization pipeline;

[0025] The pressure of the updated sterilization pipeline is monitored using a pre-built pressure sensor to obtain the initial pressure value;

[0026] The updated pressure value is obtained based on the pressure sensor, the preset pressure holding time, and the updated sterilization pipeline;

[0027] Calculate the difference between the initial pressure value and the updated pressure value to obtain the pressure drop value;

[0028] The pressure drop value is compared with the preset pressure drop threshold. If the pressure drop value is less than or equal to the pressure drop threshold, the sterilization pipeline is considered a qualified sterilization pipeline. If the pressure drop value is greater than the pressure drop threshold, the sterilization pipeline is replaced to obtain a sterilization pipeline to be confirmed. The sterilization pipeline to be confirmed is used as the sterilization pipeline, and the process returns to the step of injecting a preset compressed inert gas into the sterilization pipeline using the launching device until a qualified sterilization pipeline is obtained.

[0029] The qualified sterilization pipeline is dried using a pre-constructed desiccant to obtain a dried sterilization pipeline;

[0030] The initial injection rate is obtained based on the drying and sterilization pipeline and the preset initial VHP concentration;

[0031] Initial VHP is injected into the drying and sterilization pipeline using an injection device at an initial injection rate to obtain a VHP sterilization pipeline.

[0032] Optionally, obtaining the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline includes:

[0033] Based on the VHP concentration measurement command, the detection distance for setting the VHP concentration detection point is obtained, and multiple VHP concentration detection points are identified on the VHP sterilization pipeline according to the detection distance.

[0034] Perform the following operation for each of the multiple VHP concentration detection points:

[0035] A VHP concentration detection value set is obtained based on the VHP concentration detection points and the pre-constructed concentration sensor;

[0036] The average VHP concentration was obtained based on the VHP concentration detection value set.

[0037] The average VHP concentration is compared with a preset concentration detection threshold. If the average VHP concentration is greater than or equal to the concentration detection threshold, the average VHP concentration is taken as the target VHP concentration.

[0038] By summarizing the target VHP concentrations, a target VHP concentration set is obtained;

[0039] If the average VHP concentration detection value is less than the concentration detection threshold, then the update injection rate is obtained, wherein the update injection rate is twice the initial injection rate. Based on the update injection rate, the updated average VHP concentration detection value is obtained. The updated average VHP concentration detection value is used as the average VHP concentration detection value. The step of comparing the average VHP concentration detection value with the preset concentration detection threshold is returned until the target VHP concentration set is obtained.

[0040] Optionally, the step of obtaining and updating the VHP sterilization pipeline based on the VHP concentration adjustment command and the target VHP concentration set includes:

[0041] Based on the VHP concentration adjustment command, the following operations are performed on each target VHP concentration in the target VHP concentration set:

[0042] Obtain the sterilization concentration range, which includes the maximum sterilization concentration and the minimum sterilization concentration;

[0043] Compare the target VHP concentration with the sterilization concentration range. If the target VHP concentration is less than or equal to the maximum sterilization concentration and greater than or equal to the minimum sterilization concentration, then the target VHP concentration is considered a qualified VHP concentration. If the target VHP concentration is greater than the maximum sterilization concentration or less than the minimum sterilization concentration, then the target VHP concentration is considered a non-qualified VHP concentration.

[0044] The number of qualified and unqualified VHP concentrations were counted separately to obtain the qualified and unqualified concentration values.

[0045] The non-compliance ratio is obtained based on the qualified concentration value and the unqualified concentration value;

[0046] Compare the non-compliance ratio with a preset ratio threshold. If the non-compliance ratio is less than the ratio threshold, then the VHP sterilization pipeline is used as the replacement VHP sterilization pipeline.

[0047] If the non-compliance ratio is greater than the ratio threshold, an updated transmitter is obtained based on the target VHP concentration set and the pre-constructed fuzzy control algorithm. An updated VHP concentration set is obtained based on the updated transmitter. The updated VHP concentration in the updated VHP concentration set is taken as the target VHP concentration. The step of comparing the target VHP concentration with the sterilization concentration range is returned until the updated VHP sterilization pipeline is obtained.

[0048] Optionally, the step of obtaining an updated transmission device based on the target VHP concentration set and a pre-constructed fuzzy control algorithm includes:

[0049] Based on the target VHP concentration set, an unqualified VHP concentration set is obtained, wherein the unqualified VHP concentration set includes multiple unqualified VHP concentrations;

[0050] The average sterilization concentration is obtained based on the sterilization concentration range, wherein the average sterilization concentration is the average of the maximum sterilization concentration and the minimum sterilization concentration.

[0051] The average concentration of non-compliant VHP is obtained based on the set of non-compliant VHP concentrations.

[0052] A first control value is obtained based on the average sterilization concentration and the average non-compliance concentration, wherein the first control value is the difference between the average sterilization concentration and the average non-compliance concentration.

[0053] The standard deviation of the non-compliant concentration is obtained using the set of non-compliant VHP concentrations, wherein the standard deviation of the non-compliant concentration is the standard deviation of multiple non-compliant VHP concentrations;

[0054] Obtain the injection rate of the transmitting device to obtain the first injection rate;

[0055] The second injection rate is obtained based on the first control value, the standard deviation of the unqualified concentration, the first injection rate, and the fuzzy control algorithm.

[0056] The updated launching device is obtained based on the second injection rate.

[0057] Optionally, obtaining the sterilization CT value based on the updated VHP sterilization pipeline and the preset sterilization time includes:

[0058] A set of monitoring time points is obtained based on the sterilization time and the preset monitoring time interval;

[0059] Based on the updated VHP sterilization pipeline, the following operations are performed on each of the multiple VHP concentration detection points:

[0060] An updated sterilization concentration sequence is obtained based on the VHP concentration detection points, concentration sensors, and monitoring time point set, wherein the updated sterilization concentration sequence is sorted in ascending order of monitoring time points.

[0061] The initial CT value is obtained based on the updated sterilization concentration sequence and monitoring time point set, wherein the calculation formula for the initial CT value is as follows:

[0062] ,

[0063] in, Indicates the initial CT value. This indicates the sequence number of the updated sterilization concentration. Update the sterilization concentration. This indicates the sequence number of the updated sterilization concentration. Update the sterilization concentration. This represents the total number of updated sterilization concentrations in the updated sterilization concentration sequence. Indicates updating sterilization concentration The corresponding monitoring time point, Indicates updating sterilization concentration The corresponding monitoring time point;

[0064] By summing the initial CT values, an initial CT value set is obtained;

[0065] The sterilization CT value is obtained based on the initial CT value set, wherein the sterilization CT value is the mean of the initial CT values ​​in the initial CT value set.

[0066] Optionally, obtaining the sterilization end signal based on the sterilization CT value and a preset target CT value includes:

[0067] Compare the sterilization CT value with the target CT value. If the sterilization CT value is greater than or equal to the target CT value, then obtain the sterilization end signal by updating the VHP sterilization pipeline.

[0068] If the sterilization CT value is less than the target CT value, the difference between the target CT value and the sterilization CT value is calculated to obtain the target CT difference, and the additional sterilization time is obtained based on the target CT difference.

[0069] The newly added sterilization CT value is obtained based on the newly added sterilization time;

[0070] An updated sterilization CT value is obtained based on the newly added sterilization CT value and the sterilization CT value, wherein the updated sterilization CT value is the sum of the newly added sterilization CT value and the sterilization CT value;

[0071] The sterilization CT value is updated to the sterilization CT value, and the process of comparing the sterilization CT value with the target CT value is repeated until a sterilization end signal is obtained.

[0072] Optionally, the step of using a pre-constructed VHP decomposer to treat the exhaust gas from the pipeline to be sterilized to obtain the target sterilized pipeline includes:

[0073] Residual VHP was obtained based on the sterilization pipeline to be treated;

[0074] The residual VHP was treated in the exhaust gas using a VHP decomposer to obtain the VHP to be identified.

[0075] The concentration of the VHP to be identified was obtained by monitoring it using a concentration sensor.

[0076] Compare the VHP concentration to be confirmed with a preset safe concentration threshold. If the VHP concentration to be confirmed is less than the safe concentration threshold, then the sterilization pipeline corresponding to the VHP concentration to be confirmed is the target sterilization pipeline.

[0077] If the concentration of VHP to be confirmed is greater than the safe concentration threshold, then the VHP to be confirmed corresponding to the concentration of VHP to be confirmed is the residual VHP, and the process returns to the step of using the VHP decomposer to treat the residual VHP in exhaust gas until the target sterilization pipeline is obtained.

[0078] To achieve the above objectives, the present invention also provides a VHP-based sterilization system, comprising:

[0079] The sterilization environment verification module is used to receive sterilization control commands and verify the sterilization control environment based on the sterilization control commands. The sterilization control environment includes a sterilization control system and a pre-constructed sterilization pipeline. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit and a VHP concentration adjustment unit.

[0080] The VHP generation and measurement module is used to receive VHP generation instructions from the VHP generation unit and obtain the initial VHP based on the VHP generation instructions.

[0081] Initial VHP is injected into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline;

[0082] Receive a VHP concentration measurement command from the VHP concentration measurement unit, and obtain the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline;

[0083] The VHP sterilization adjustment module is used to receive VHP concentration adjustment instructions from the VHP concentration adjustment unit and to obtain updated VHP sterilization pipelines based on the VHP concentration adjustment instructions and the target VHP concentration set.

[0084] The sterilization completion verification module is used to obtain the sterilization CT value based on the updated VHP sterilization pipeline and the preset sterilization time, and to obtain the sterilization end signal based on the sterilization CT value and the preset target CT value.

[0085] Based on the sterilization end signal, the transmitting device is turned off using a pre-built controller to obtain a standby transmitting device. Based on the standby transmitting device and the updated VHP sterilization pipeline, the sterilization pipeline to be processed is obtained. The waste gas of the sterilization pipeline to be processed is treated using a pre-built VHP decomposer to obtain the target sterilization pipeline.

[0086] VHP sterilization is achieved based on the target sterilization pipeline.

[0087] To address the above problems, the present invention also provides an electronic device, the electronic device comprising:

[0088] A memory that stores at least one instruction; and a processor that executes the instructions stored in the memory to implement the VHP-based sterilization method described above.

[0089] To address the aforementioned problems, the present invention also provides a computer-readable storage medium storing at least one instruction, which is executed by a processor in an electronic device to implement the VHP-based sterilization method described above.

[0090] To address the problems described in the background art, this invention confirms the receipt of sterilization control commands and, based on these commands, identifies a sterilization control environment. This sterilization control environment includes a sterilization control system and a pre-constructed sterilization pipeline. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit, and a VHP concentration adjustment unit. Therefore, before controlling the VHP sterilization pipeline, this invention considers the operating conditions of the VHP sterilization pipeline under different environments or circumstances. Thus, the sterilization control environment and sterilization control system are determined. Furthermore, it receives VHP generation commands from the VHP generation unit and obtains initial VHP based on these commands. This demonstrates the effectiveness of this invention. During sterilization, the potential impact of the VHP generation unit temperature on the VHP sterilization effect was considered. Therefore, an iterative approach was used to improve the obtained VHP sterilization effect. An initial VHP was injected into the sterilization pipeline using a pre-constructed emitter, resulting in a VHP sterilization pipeline. This lays the foundation for subsequent control of the VHP sterilization pipeline. A VHP concentration measurement command was received from the VHP concentration measurement unit, and the target VHP concentration set was obtained based on the VHP concentration measurement command and the VHP sterilization pipeline. It is evident that this invention also considers whether the VHP concentration injected into the sterilization pipeline meets the sterilization conditions. Therefore, based on the VHP... The HP concentration measurement command obtains the detection distance for setting the VHP concentration detection point. Based on the detection distance, multiple VHP concentration detection points are identified on the VHP sterilization pipeline, thereby improving the accuracy of VHP sterilization pipeline control. It receives a VHP concentration adjustment command from the VHP concentration adjustment unit and updates the VHP sterilization pipeline based on the VHP concentration adjustment command and the target VHP concentration set. Therefore, this invention considers the actual situation that VHP is consumed during sterilization. The VHP concentration adjustment unit keeps the VHP concentration within a sterilizable range and also considers the standard for sterilization completion. The invention involves updating the VHP sterilization pipeline and obtaining a sterilization CT value based on a preset sterilization time. A sterilization end signal is then obtained based on the sterilization CT value and a preset target CT value. Furthermore, based on the sterilization end signal, a pre-built controller is used to shut down the transmitting device, resulting in a standby transmitting device. A sterilization pipeline to be processed is obtained based on the standby transmitting device and the updated VHP sterilization pipeline. A pre-built VHP decomposer is used to treat the exhaust gas from the sterilization pipeline to be processed, resulting in the target sterilization pipeline. This invention addresses the safety hazards posed by residual VHP after sterilization by obtaining the target sterilization pipeline through exhaust gas treatment, and then achieving VHP sterilization based on the target sterilization pipeline. Therefore, this invention improves the accurate control of VHP sterilization pipelines. Attached Figure Description

[0091] Figure 1This is a schematic flowchart of a VHP-based sterilization method provided in an embodiment of the present invention;

[0092] Figure 2 A functional block diagram of a VHP-based sterilization system provided in an embodiment of the present invention;

[0093] Figure 3 This is a schematic diagram of an electronic device for implementing the VHP-based sterilization method according to an embodiment of the present invention.

[0094] Explanation of reference numerals in the attached figures:

[0095] 10. Electronic device; 11. Processor; 12. Memory; 13. Bus.

[0096] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0097] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0098] This application provides a VHP-based sterilization method. The execution entity of the VHP-based sterilization method includes, but is not limited to, at least one of the following electronic devices that can be configured to execute the method provided in this application: a server, a terminal, etc. In other words, the VHP-based sterilization method can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0099] Reference Figure 1 The diagram shown is a schematic flowchart of a VHP-based sterilization method according to an embodiment of the present invention. In this embodiment, the VHP-based sterilization method includes:

[0100] S1. Receive sterilization control command, and confirm sterilization control environment based on sterilization control command, wherein the sterilization control environment includes sterilization control system and pre-constructed sterilization pipeline, and the sterilization control system includes VHP generation unit, VHP concentration measurement unit and VHP concentration adjustment unit.

[0101] It should be explained that the sterilization control command is an instruction issued by personnel who wish to sterilize a target area, which includes rooms, process equipment cavities, etc. The sterilization control environment refers to the necessary environment for sterilizing the target area. The sterilization control system refers to the software or app used to sterilize the target area. The sterilization pipeline refers to the pipeline used to transport sterilizing substances to achieve sterilization of the target area. Optionally, VHP (vaporized hydrogen peroxide) is used as the sterilizing substance, and VHP has good sterilization effect due to its redox properties. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit, and a VHP concentration adjustment unit. For specific unit applications, please refer to subsequent embodiments. The main purpose of this invention is to improve the controllability of sterilization using VHP sterilization pipelines.

[0102] For example, Zhang, as the safety officer responsible for sterilizing a bioreactor, issues the sterilization control command and confirms the sterilization control environment in order to ensure the reliability and controllability of the sterilization process and avoid problems such as bioreactor sterilization failure due to inaccurate VHP concentration control.

[0103] S2. Receive a VHP generation instruction from the VHP generation unit, and obtain an initial VHP based on the VHP generation instruction.

[0104] It should be explained that the VHP generation unit refers to the functional unit in the sterilization control system used to generate VHP. Optionally, an evaporator can be used as the VHP generation unit.

[0105] Furthermore, obtaining the initial VHP based on the VHP generation instruction includes:

[0106] Hydrogen peroxide solution is obtained based on the VHP generation command;

[0107] The vaporization device is obtained, and the temperature of the vaporization device is monitored using a pre-built temperature sensor to obtain the actual temperature value;

[0108] Obtain the optimal vaporization temperature range, which includes the maximum vaporization temperature value and the minimum vaporization temperature value;

[0109] The target vaporization temperature value is obtained based on the optimal vaporization temperature range, wherein the target vaporization temperature value is the average of the maximum vaporization temperature value and the minimum vaporization temperature value.

[0110] The temperature control value is obtained based on the actual temperature value and the target vaporization temperature value;

[0111] Based on the temperature control value, the preset control algorithm, and the vaporization device, the vaporization device is updated.

[0112] The initial VHP is obtained based on the hydrogen peroxide solution and the updated vaporization device.

[0113] It should be explained that the VHP generation command refers to the operation command issued by the VHP generation unit to begin generating VHP. Obtaining hydrogen peroxide solution based on the VHP generation command means placing a certain amount of hydrogen peroxide solution into the VHP generation unit when the VHP generation unit issues the VHP generation command. The vaporization device refers to a device capable of converting the hydrogen peroxide solution into vaporized hydrogen peroxide; optionally, an evaporator is used as the vaporization device. The actual temperature value refers to the temperature value at which the vaporization device vaporizes the hydrogen peroxide solution; optionally, a semiconductor temperature sensor is used as the temperature sensor.

[0114] It is clear that the optimal vaporization temperature range refers to the best temperature range in the vaporization device when vaporizing hydrogen peroxide solution. The maximum vaporization temperature value is the highest vaporization temperature value within the optimal vaporization temperature range. The minimum vaporization temperature value is the lowest vaporization temperature value within the optimal vaporization temperature range. If the actual temperature is lower than the minimum vaporization temperature value, the hydrogen peroxide solution cannot be completely vaporized; if the actual temperature is higher than the maximum vaporization temperature value, the hydrogen peroxide solution will decompose into water and oxygen. Therefore, the purpose of using the average of the maximum and minimum vaporization temperatures as the target vaporization temperature value is to prevent the actual temperature value from approaching the minimum or maximum vaporization temperature value, thus avoiding incomplete vaporization and affecting the sterilization effect of VHP. The target vaporization temperature value is the average of the maximum and minimum vaporization temperatures within the optimal vaporization temperature range. The temperature control value refers to the difference between the target vaporization temperature value and the actual temperature value. For example, if the optimal vaporization temperature range is 100 degrees Celsius to 125 degrees Celsius, then the maximum vaporization temperature value is 125 degrees Celsius, the minimum vaporization temperature value is 100 degrees Celsius, and the target vaporization temperature value is 112.5 degrees Celsius. If the actual temperature value is 107 degrees Celsius, then the temperature control value is 5.5.

[0115] It is understood that obtaining an updated vaporization device based on the aforementioned temperature control value, the preset control algorithm, and the vaporization device refers to using a control algorithm to make the actual temperature value in the vaporization device fluctuate around the target vaporization temperature value when the vaporization device vaporizes the hydrogen peroxide solution. Optionally, a fuzzy PID control algorithm can be used as the control algorithm. The method of controlling the actual temperature value using a fuzzy PID control algorithm is existing technology and will not be elaborated here. The fuzzy PID control algorithm refers to a control algorithm obtained by combining fuzzy logic with a traditional PID controller. PID control refers to proportional-integral-derivative control. An updated vaporization device refers to a vaporization device whose actual temperature value is the target vaporization temperature value. Obtaining the initial VHP based on the aforementioned hydrogen peroxide solution and the updated vaporization device refers to obtaining the initial VHP by vaporizing the hydrogen peroxide solution using the updated vaporization device. The initial VHP refers to the vaporized hydrogen peroxide obtained through the updated vaporization device.

[0116] S3. Inject initial VHP into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline.

[0117] Furthermore, the process of injecting initial VHP into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline includes:

[0118] A pre-set compressed inert gas is injected into the sterilization pipeline using a launching device to renew the sterilization pipeline;

[0119] The pressure of the updated sterilization pipeline is monitored using a pre-built pressure sensor to obtain the initial pressure value;

[0120] The updated pressure value is obtained based on the pressure sensor, the preset pressure holding time, and the updated sterilization pipeline;

[0121] Calculate the difference between the initial pressure value and the updated pressure value to obtain the pressure drop value;

[0122] The pressure drop value is compared with the preset pressure drop threshold. If the pressure drop value is less than or equal to the pressure drop threshold, the sterilization pipeline is considered a qualified sterilization pipeline. If the pressure drop value is greater than the pressure drop threshold, the sterilization pipeline is replaced to obtain a sterilization pipeline to be confirmed. The sterilization pipeline to be confirmed is used as the sterilization pipeline, and the process returns to the step of injecting a preset compressed inert gas into the sterilization pipeline using the launching device until a qualified sterilization pipeline is obtained.

[0123] The qualified sterilization pipeline is dried using a pre-constructed desiccant to obtain a dried sterilization pipeline;

[0124] The initial injection rate is obtained based on the drying and sterilization pipeline and the preset initial VHP concentration;

[0125] Initial VHP is injected into the drying and sterilization pipeline using an injection device at an initial injection rate to obtain a VHP sterilization pipeline.

[0126] It is clear that the launching device is a device for injecting a specified substance into the sterilization pipeline. Optionally, a diffuser and a circulating fan can be used as the launching device. Compressed inert gas refers to an inert gas that has been compressed, such as compressed argon. The purpose of injecting compressed inert gas into the sterilization pipeline is to measure the pressure change in the sterilization pipeline and thus verify whether the sealing of the sterilization pipeline meets the transportation requirements. Replacing the sterilization pipeline refers to the sterilization pipeline after the injection of compressed inert gas.

[0127] It should be explained that the initial pressure value refers to the pressure value in the updated sterilization pipeline. Optionally, an absolute pressure sensor can be used as the pressure sensor. Obtaining the updated pressure value based on the pressure sensor, the preset holding time, and the updated sterilization pipeline means that after injecting compressed inert gas and waiting for the holding time to end, the pressure sensor is used again to monitor the updated sterilization pipeline to obtain the updated pressure value. The holding time refers to the waiting time required for the next pressure monitoring. The updated pressure value refers to the pressure value in the updated sterilization pipeline after the holding time ends. For example, if the initial pressure value is 30, the holding time is 1 minute, and the updated pressure value is 28 after one minute of pressure monitoring.

[0128] It is clear that the pressure drop value refers to the difference between the initial pressure value and the updated pressure value, and is used to measure the sealing performance of the sterilized pipeline. When the pressure drops to less than or equal to the pressure drop threshold, it indicates that the sealing performance of the sterilized pipeline meets the requirements for transporting VHP. Therefore, the sterilized pipeline is considered a qualified sterilized pipeline. If the pressure drop value is greater than the pressure drop threshold, it indicates that the sealing performance of the sterilized pipeline is poor and does not meet the requirements for transporting VHP. Therefore, other sterilized pipelines are replaced to obtain sterilized pipelines to be confirmed, and the sealing performance of the sterilized pipelines to be confirmed is tested again until a qualified sterilized pipeline is obtained. A qualified sterilized pipeline is a sterilized pipeline with good sealing performance that meets the conditions for transporting VHP. A sterilized pipeline to be confirmed refers to the sterilized pipeline after replacement.

[0129] It should be explained that the purpose of drying the qualified sterilization tubing after obtaining it is to prevent water or unknown liquids in the tubing from affecting the sterilization effect of VHP. Drying the qualified sterilization tubing using a pre-constructed desiccant refers to injecting the desiccant into the tubing via a dispensing device to achieve the drying process. Optionally, anhydrous calcium sulfate can be used as the desiccant. The dried sterilization tubing refers to the qualified sterilization tubing after the drying process.

[0130] It is understood that obtaining the initial injection rate based on the aforementioned drying and sterilization pipeline and the preset initial VHP concentration means calculating the initial injection rate using the set initial VHP concentration and the volume of the drying and sterilization pipeline. For example, to rapidly increase the VHP concentration in a 0.15 m³ drying and sterilization pipeline to 10 g / m³ within 2 minutes, the initial injection rate of the launching device during the startup phase should be set to 0.75 g / min. The initial VHP concentration refers to the set VHP concentration sufficient for sterilization. The initial injection rate refers to the rate at which the launching device injects VHP into the sterilization pipeline. The VHP sterilization pipeline refers to a sterilization pipeline filled with VHP.

[0131] S4. Receive a VHP concentration measurement command from the VHP concentration measurement unit, and obtain the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline.

[0132] It should be explained that the VHP concentration measuring unit is a functional unit in the sterilization control system used to measure the VHP concentration in the VHP sterilization pipeline. Optionally, a concentration sensor can be used as the VHP concentration measuring unit.

[0133] Furthermore, the step of obtaining the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline includes:

[0134] Based on the VHP concentration measurement command, the detection distance for setting the VHP concentration detection point is obtained, and multiple VHP concentration detection points are identified on the VHP sterilization pipeline according to the detection distance.

[0135] Perform the following operation for each of the multiple VHP concentration detection points:

[0136] A VHP concentration detection value set is obtained based on the VHP concentration detection points and the pre-constructed concentration sensor;

[0137] The average VHP concentration was obtained based on the VHP concentration detection value set.

[0138] The average VHP concentration is compared with a preset concentration detection threshold. If the average VHP concentration is greater than or equal to the concentration detection threshold, the average VHP concentration is taken as the target VHP concentration.

[0139] By summarizing the target VHP concentrations, a target VHP concentration set is obtained;

[0140] If the average VHP concentration detection value is less than the concentration detection threshold, then the update injection rate is obtained, wherein the update injection rate is twice the initial injection rate. Based on the update injection rate, the updated average VHP concentration detection value is obtained. The updated average VHP concentration detection value is used as the average VHP concentration detection value. The step of comparing the average VHP concentration detection value with the preset concentration detection threshold is returned until the target VHP concentration set is obtained.

[0141] It is clear that the VHP concentration measurement command refers to the operational command issued by the VHP concentration measurement unit to begin measuring the concentration of VHP in the sterilization pipeline. The detection distance refers to the distance used to set different VHP concentration detection points in the VHP sterilization pipeline, and the distance between two adjacent VHP concentration detection points is the detection distance. A VHP concentration detection point is a point identified using the detection distance for VHP concentration measurement. For example, if the length of the VHP sterilization pipeline is 100cm and the detection distance is 10cm, then using the detection distance, 11 VHP concentration detection points can be identified on the VHP sterilization pipeline, and the distance between two adjacent VHP concentration detection points is 10cm.

[0142] It should be explained that the purpose of obtaining VHP concentrations at multiple concentration detection points is to verify whether the VHP concentration injected into the sterilization pipeline meets the concentration conditions for sterilizing the target area by comparing the VHP concentrations at each concentration detection point with the concentration detection threshold.

[0143] It is clear that obtaining the VHP concentration detection value set based on the aforementioned VHP concentration detection points and the pre-constructed concentration sensor refers to obtaining the VHP concentration detection value set by performing multiple concentration measurements at the VHP concentration detection points using the concentration sensor. Optionally, an electrochemical sensor can be used as the concentration sensor. The VHP concentration detection value set refers to the collection of multiple VHP concentrations obtained by performing multiple measurements at the VHP concentration detection points. The VHP concentration detection mean refers to the average of the VHP concentration detection values ​​in the VHP concentration detection value set. For example, if the VHP concentration detection value set is (12, 20, 25, 26, 26), then the VHP concentration detection mean is 21.8.

[0144] It should be explained that if the average VHP concentration detected is greater than or equal to the concentration detection threshold, it indicates that the VHP concentration injected into the sterilization pipeline during the sterilization preparation stage has reached the initial VHP concentration requirement, i.e., it meets the concentration conditions for sterilizing the target area. If the average VHP concentration detected is less than the concentration detection threshold, it indicates that the VHP injection is insufficient and cannot meet the concentration conditions for sterilizing the target area. The injection rate needs to be accelerated; therefore, an update injection rate is obtained. The update injection rate refers to the increased initial injection rate, specifically twice the initial injection rate. Setting the update injection rate to twice the initial injection rate aims to accelerate the initial VHP injection, allowing the average VHP concentration detected to quickly reach the concentration detection threshold, thus saving sterilization time. The average updated VHP concentration detected refers to the average VHP concentration at the VHP concentration detection points after injecting VHP at the update injection rate. The target VHP concentration refers to the VHP concentration that meets the sterilization concentration conditions.

[0145] S5. Receive a VHP concentration adjustment command from the VHP concentration adjustment unit, and obtain an updated VHP sterilization pipeline based on the VHP concentration adjustment command and the target VHP concentration set.

[0146] It should be explained that the VHP concentration adjustment unit is a functional unit in the sterilization control system used to adjust the VHP concentration in the sterilization pipeline. When the VHP sterilization pipeline begins sterilization, the VHP concentration in the VHP sterilization pipeline will decrease. Therefore, the VHP concentration adjustment unit is needed to adjust the VHP concentration so that the VHP concentration in the VHP sterilization pipeline always meets the concentration conditions required for sterilization.

[0147] Furthermore, the step of obtaining and updating the VHP sterilization pipeline based on the VHP concentration adjustment command and the target VHP concentration set includes:

[0148] Based on the VHP concentration adjustment command, the following operations are performed on each target VHP concentration in the target VHP concentration set:

[0149] Obtain the sterilization concentration range, which includes the maximum sterilization concentration and the minimum sterilization concentration;

[0150] Compare the target VHP concentration with the sterilization concentration range. If the target VHP concentration is less than or equal to the maximum sterilization concentration and greater than or equal to the minimum sterilization concentration, then the target VHP concentration is considered a qualified VHP concentration. If the target VHP concentration is greater than the maximum sterilization concentration or less than the minimum sterilization concentration, then the target VHP concentration is considered a non-qualified VHP concentration.

[0151] The number of qualified and unqualified VHP concentrations were counted separately to obtain the qualified and unqualified concentration values.

[0152] The non-compliance ratio is obtained based on the qualified concentration value and the unqualified concentration value;

[0153] Compare the non-compliance ratio with a preset ratio threshold. If the non-compliance ratio is less than the ratio threshold, then the VHP sterilization pipeline is used as the replacement VHP sterilization pipeline.

[0154] If the non-compliance ratio is greater than the ratio threshold, an updated transmitter is obtained based on the target VHP concentration set and the pre-constructed fuzzy control algorithm. An updated VHP concentration set is obtained based on the updated transmitter. The updated VHP concentration in the updated VHP concentration set is taken as the target VHP concentration. The step of comparing the target VHP concentration with the sterilization concentration range is returned until the updated VHP sterilization pipeline is obtained.

[0155] It is clear that the sterilization concentration range refers to the range of VHP concentrations that can achieve sterilization. The maximum sterilization concentration is the highest sterilization concentration within the sterilization concentration range. The minimum sterilization concentration is the lowest sterilization concentration within the sterilization concentration range. If the target VHP concentration is less than or equal to the maximum sterilization concentration and greater than or equal to the minimum sterilization concentration, it indicates that the target VHP concentration meets the sterilization conditions; therefore, the target VHP concentration is considered a qualified VHP concentration. A qualified VHP concentration is a VHP concentration that meets the sterilization conditions. If the target VHP concentration is greater than the maximum sterilization concentration or less than the minimum sterilization concentration, it indicates that the target VHP concentration does not meet the sterilization conditions; therefore, the target VHP concentration is considered an unqualified VHP concentration. An unqualified VHP concentration is a VHP concentration that does not meet the sterilization conditions. For example, if the sterilization concentration range is (30, 40), and the target VHP concentrations are 34 and 28 respectively, then the target VHP concentration corresponding to 34 is a qualified VHP concentration, and the target VHP concentration corresponding to 28 is an unqualified VHP concentration.

[0156] It is clear that if the VHP concentration at a few monitoring points does not meet the sterilization requirements, but the VHP concentration at most monitoring points does, the overall sterilization pipeline can still complete the sterilization task. Therefore, the failure rate is used to verify whether the sterilization pipeline meets the sterilization requirements. The failure rate is the ratio of the number of failure VHP concentrations to the total number of qualified and failure VHP concentrations. For example, if the number of failure VHP concentrations is 1 and the number of qualified VHP concentrations is 10, then the failure rate is 0.09.

[0157] Understandably, if the non-compliance ratio is less than the ratio threshold, it indicates that only a few VHP concentration detection points do not meet the requirements, and this does not affect the overall sterilization effect. Therefore, the VHP sterilization pipeline is considered the updated VHP sterilization pipeline. The updated VHP sterilization pipeline refers to a VHP sterilization pipeline capable of sterilization. If the non-compliance ratio is greater than the ratio threshold, it indicates that the overall VHP sterilization pipeline does not meet the sterilization requirements. Therefore, an updated transmitter is obtained based on the target VHP concentration set and the pre-constructed fuzzy control algorithm. The updated transmitter refers to the transmitter after updating the injection rate. The updated VHP concentration set refers to the set of target VHP concentrations at each VHP concentration detection point after VHP is injected again using the updated transmitter.

[0158] Furthermore, the step of obtaining an updated transmission device based on the target VHP concentration set and a pre-constructed fuzzy control algorithm includes:

[0159] Based on the target VHP concentration set, an unqualified VHP concentration set is obtained, wherein the unqualified VHP concentration set includes multiple unqualified VHP concentrations;

[0160] The average sterilization concentration is obtained based on the sterilization concentration range, wherein the average sterilization concentration is the average of the maximum sterilization concentration and the minimum sterilization concentration.

[0161] The average concentration of non-compliant VHP is obtained based on the set of non-compliant VHP concentrations.

[0162] A first control value is obtained based on the average sterilization concentration and the average non-compliance concentration, wherein the first control value is the difference between the average sterilization concentration and the average non-compliance concentration.

[0163] The standard deviation of the non-compliant concentration is obtained using the set of non-compliant VHP concentrations, wherein the standard deviation of the non-compliant concentration is the standard deviation of multiple non-compliant VHP concentrations;

[0164] Obtain the injection rate of the transmitting device to obtain the first injection rate;

[0165] The second injection rate is obtained based on the first control value, the standard deviation of the unqualified concentration, the first injection rate, and the fuzzy control algorithm.

[0166] The updated launching device is obtained based on the second injection rate.

[0167] It is clear that the set of non-compliant VHP concentrations refers to the collection of illegal VHP concentrations within the target VHP concentration range. The mean sterilization concentration refers to the average of the maximum and minimum sterilization concentrations within the sterilization concentration range. The mean non-compliant concentration refers to the average of the non-compliant VHP concentrations within the set of non-compliant VHP concentrations. The first control value is the difference between the mean sterilization concentration and the mean non-compliant concentration. The standard deviation of the non-compliant concentration refers to the standard deviation of multiple non-compliant VHP concentrations within the set of non-compliant VHP concentrations. For example, if the set of non-compliant VHP concentrations is (12, 10, 14, 16, 16), the mean non-compliant sterilization concentration is 13.6, the sterilization concentration range is (20, 30), and the mean sterilization concentration is 25, then the first control value is 11.4, and the standard deviation of the non-compliant concentration is 2.33.

[0168] It is understood that the first injection rate refers to the rate at which the current transmitting device injects VHP. Obtaining the second injection rate based on the first control value, the standard deviation of the non-compliant concentration, the first injection rate, and the fuzzy control algorithm means using the first control value and the standard deviation of the non-compliant concentration as control values, and applying a fuzzy control algorithm to perform fuzzy control on the first injection rate to obtain the second injection rate. The method of using a fuzzy control algorithm for fuzzy control is existing technology and will not be elaborated upon here. The second injection rate refers to the injection rate obtained through the fuzzy control algorithm. Updating the transmitting device refers to the transmitting device injecting at the second injection rate.

[0169] S6. Obtain the sterilization CT value based on the updated VHP sterilization pipeline and the preset sterilization time, and obtain the sterilization end signal based on the sterilization CT value and the preset target CT value.

[0170] Furthermore, obtaining the sterilization CT value based on the updated VHP sterilization pipeline and the preset sterilization time includes:

[0171] A set of monitoring time points is obtained based on the sterilization time and the preset monitoring time interval;

[0172] Based on the updated VHP sterilization pipeline, the following operations are performed on each of the multiple VHP concentration detection points:

[0173] An updated sterilization concentration sequence is obtained based on the VHP concentration detection points, concentration sensors, and monitoring time point set, wherein the updated sterilization concentration sequence is sorted in ascending order of monitoring time points.

[0174] The initial CT value is obtained based on the updated sterilization concentration sequence and monitoring time point set, wherein the calculation formula for the initial CT value is as follows:

[0175] ,

[0176] in, Indicates the initial CT value. This indicates the sequence number of the updated sterilization concentration. Update the sterilization concentration. This indicates the sequence number of the updated sterilization concentration. Update the sterilization concentration. This represents the total number of updated sterilization concentrations in the updated sterilization concentration sequence. Indicates updating sterilization concentration The corresponding monitoring time point, Indicates updating sterilization concentration The corresponding monitoring time point;

[0177] By summing the initial CT values, an initial CT value set is obtained;

[0178] The sterilization CT value is obtained based on the initial CT value set, wherein the sterilization CT value is the mean of the initial CT values ​​in the initial CT value set.

[0179] It should be explained that sterilization time refers to the time required to sterilize the target area. Monitoring time interval refers to the time interval used to set different monitoring time points within the sterilization time, with the time interval between two adjacent monitoring time points being the monitoring time interval. Monitoring time point refers to the time point used to monitor VHP concentration. Updated sterilization concentration sequence refers to the VHP concentration sequence obtained by performing multiple concentration monitoring at VHP concentration detection points within the sterilization time and sorting them in ascending order of monitoring time points. Initial CT value refers to the value corresponding to the integral of VHP concentration at VHP concentration detection points with sterilization time within the sterilization time. Sterilization CT value refers to the value corresponding to the integral of VHP concentration in the updated VHP sterilization pipeline with sterilization time within the sterilization time, used to measure the VHP dose during sterilization.

[0180] Furthermore, the step of obtaining the sterilization end signal based on the sterilization CT value and the preset target CT value includes:

[0181] Compare the sterilization CT value with the target CT value. If the sterilization CT value is greater than or equal to the target CT value, then obtain the sterilization end signal by updating the VHP sterilization pipeline.

[0182] If the sterilization CT value is less than the target CT value, the difference between the target CT value and the sterilization CT value is calculated to obtain the target CT difference, and the additional sterilization time is obtained based on the target CT difference.

[0183] The newly added sterilization CT value is obtained based on the newly added sterilization time;

[0184] An updated sterilization CT value is obtained based on the newly added sterilization CT value and the sterilization CT value, wherein the updated sterilization CT value is the sum of the newly added sterilization CT value and the sterilization CT value;

[0185] The sterilization CT value is updated to the sterilization CT value, and the process of comparing the sterilization CT value with the target CT value is repeated until a sterilization end signal is obtained.

[0186] It should be explained that the target CT value refers to the CT value used to verify whether sterilization is complete. If the sterilization CT value is greater than or equal to the target CT value, it indicates that the VHP dose during sterilization meets the conditions for completing sterilization. Therefore, the sterilization end signal is obtained using the updated VHP sterilization tubing. The sterilization end signal is a signal indicating the end of sterilization. Obtaining the sterilization end signal using the updated VHP sterilization tubing means that when the sterilization CT value is greater than or equal to the target CT value, the transmitter in the updated VHP sterilization tubing sends out the sterilization end signal.

[0187] It is clear that if the sterilization CT value is less than the target CT value, it indicates that the sterilization time was insufficient, resulting in an unsatisfactory VHP dosage. Therefore, the sterilization time needs to be increased, and the target CT difference is obtained. The target CT difference refers to the difference between the target CT value and the sterilization CT value. Obtaining the additional sterilization time based on the target CT difference means calculating the additional sterilization time based on the average sterilization concentration and the target CT difference. For example, if the sterilization CT value is 1600 and the target CT value is 1650, then the target CT difference is 50. If the average sterilization concentration is 600, then the additional sterilization time is the target CT difference divided by the average sterilization concentration, resulting in 0.08 minutes. The additional sterilization time refers to the increased sterilization time.

[0188] It is understandable that the newly added sterilization CT value refers to the sterilization CT value corresponding to the newly added sterilization time, and the method for obtaining the newly added sterilization CT value is the same as the method for obtaining the sterilization CT value, which will not be repeated here. The updated sterilization CT value is the sum of the newly added sterilization CT value and the sterilization CT value. If the updated sterilization CT value is greater than or equal to the target CT value, it indicates that sterilization is complete, and therefore, a sterilization end signal is obtained.

[0189] S7. Based on the sterilization end signal, the transmitting device is turned off using a pre-built controller to obtain a standby transmitting device. Based on the standby transmitting device and the updated VHP sterilization pipeline, the sterilization pipeline to be processed is obtained. The waste gas of the sterilization pipeline to be processed is treated using a pre-built VHP decomposer to obtain the target sterilization pipeline.

[0190] It is clear that when the controller receives the sterilization completion signal, it shuts down the transmitting device to obtain a standby transmitting device. Optionally, a programmable logic controller (PLC) can be used as the controller. The standby transmitting device refers to the transmitting device after it has been shut down. Obtaining the sterilization pipeline to be processed based on the standby transmitting device and the updated VHP sterilization pipeline means that after the transmitting device in the updated VHP sterilization pipeline is shut down, it is left to stand for three minutes to obtain the sterilization pipeline containing residual VHP. Sterilization management to be processed refers to the sterilization pipeline that needs to be processed for residual VHP.

[0191] Furthermore, the process of using a pre-constructed VHP decomposer to treat the exhaust gas from the sterilization pipeline to obtain the target sterilization pipeline includes:

[0192] Residual VHP was obtained based on the sterilization pipeline to be treated;

[0193] The residual VHP was treated in the exhaust gas using a VHP decomposer to obtain the VHP to be identified.

[0194] The concentration of the VHP to be identified was obtained by monitoring it using a concentration sensor.

[0195] Compare the VHP concentration to be confirmed with a preset safe concentration threshold. If the VHP concentration to be confirmed is less than the safe concentration threshold, then the sterilization pipeline corresponding to the VHP concentration to be confirmed is the target sterilization pipeline.

[0196] If the concentration of VHP to be confirmed is greater than the safe concentration threshold, then the VHP to be confirmed corresponding to the concentration of VHP to be confirmed is the residual VHP, and the process returns to the step of using the VHP decomposer to treat the residual VHP in exhaust gas until the target sterilization pipeline is obtained.

[0197] It should be explained that obtaining residual VHP from the sterilization pipeline refers to using a circulating fan in the launching device to blow the VHP in the sterilization pipeline into a VHP decomposer. Optionally, a decomposer filled with manganese dioxide catalyst can be used as the VHP decomposer. Residual VHP refers to the VHP remaining after sterilization. VHP to be confirmed refers to the VHP after exhaust gas treatment. VHP concentration to be confirmed refers to the concentration of VHP to be confirmed.

[0198] It is clear that the safe concentration threshold is a value used to determine whether the concentration of VHP reaches a safe standard. If the concentration of VHP to be confirmed is less than the safe concentration threshold, it means that the VHP to be confirmed will not cause a safety accident. Therefore, the sterilization pipeline corresponding to the concentration of VHP to be confirmed is the target sterilization pipeline. The target sterilization pipeline is a sterilization pipeline that can achieve sterilization and whose residual VHP after sterilization does not pose a safety risk. If the concentration of VHP to be confirmed is greater than the safe concentration threshold, it means that the VHP has not been completely removed and exhaust gas treatment is required again. Therefore, the process returns to the step of using a VHP decomposer to treat the residual VHP exhaust gas until the target sterilization pipeline is obtained.

[0199] S8. Perform VHP sterilization based on the target sterilization pipeline.

[0200] For example, when Xiao Zhao started sterilizing the experimental device, he set a target sterilization pipeline to complete the sterilization task. He transported and adjusted the concentration of VHP through the target sterilization pipeline, thus completing the sterilization operation of the experimental equipment.

[0201] To address the problems described in the background art, this invention confirms the receipt of sterilization control commands and, based on these commands, identifies a sterilization control environment. This sterilization control environment includes a sterilization control system and a pre-constructed sterilization pipeline. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit, and a VHP concentration adjustment unit. Therefore, before controlling the VHP sterilization pipeline, this invention considers the operating conditions of the VHP sterilization pipeline under different environments or circumstances. Thus, the sterilization control environment and sterilization control system are determined. Furthermore, it receives VHP generation commands from the VHP generation unit and obtains initial VHP based on these commands. This demonstrates the effectiveness of this invention. During sterilization, the potential impact of the VHP generation unit temperature on the VHP sterilization effect was considered. Therefore, an iterative approach was used to improve the obtained VHP sterilization effect. An initial VHP was injected into the sterilization pipeline using a pre-constructed emitter, resulting in a VHP sterilization pipeline. This lays the foundation for subsequent control of the VHP sterilization pipeline. A VHP concentration measurement command was received from the VHP concentration measurement unit, and the target VHP concentration set was obtained based on the VHP concentration measurement command and the VHP sterilization pipeline. It is evident that this invention also considers whether the VHP concentration injected into the sterilization pipeline meets the sterilization conditions. Therefore, based on the VHP... The HP concentration measurement command obtains the detection distance for setting the VHP concentration detection point. Based on the detection distance, multiple VHP concentration detection points are identified on the VHP sterilization pipeline, thereby improving the accuracy of VHP sterilization pipeline control. It receives a VHP concentration adjustment command from the VHP concentration adjustment unit and updates the VHP sterilization pipeline based on the VHP concentration adjustment command and the target VHP concentration set. Therefore, this invention considers the actual situation that VHP is consumed during sterilization. The VHP concentration adjustment unit keeps the VHP concentration within a sterilizable range and also considers the standard for sterilization completion. The invention involves updating the VHP sterilization pipeline and obtaining a sterilization CT value based on a preset sterilization time. A sterilization end signal is then obtained based on the sterilization CT value and a preset target CT value. Furthermore, based on the sterilization end signal, a pre-built controller is used to shut down the transmitting device, resulting in a standby transmitting device. A sterilization pipeline to be processed is obtained based on the standby transmitting device and the updated VHP sterilization pipeline. A pre-built VHP decomposer is used to treat the exhaust gas from the sterilization pipeline to be processed, resulting in the target sterilization pipeline. This invention addresses the safety hazards posed by residual VHP after sterilization by obtaining the target sterilization pipeline through exhaust gas treatment, and then achieving VHP sterilization based on the target sterilization pipeline. Therefore, this invention improves the accurate control of VHP sterilization pipelines.

[0202] like Figure 2The diagram shown is a functional block diagram of a VHP-based sterilization system provided in an embodiment of the present invention.

[0203] The VHP-based sterilization system 100 described in this invention can be installed in an electronic device. Depending on the functions implemented, the VHP-based sterilization system 100 may include a sterilization environment verification module 101, a VHP generation measurement module 102, a VHP sterilization adjustment module 103, and a sterilization completion verification module 104. The module described in this invention can also be referred to as a unit, which refers to a series of computer program segments that can be executed by the processor of an electronic device and can perform a fixed function, and are stored in the memory of the electronic device.

[0204] The sterilization environment verification module 101 is used to receive sterilization control commands and verify the sterilization control environment based on the sterilization control commands. The sterilization control environment includes a sterilization control system and a pre-constructed sterilization pipeline. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit and a VHP concentration adjustment unit.

[0205] The VHP generation and measurement module 102 is used to receive VHP generation instructions from the VHP generation unit and obtain initial VHP based on the VHP generation instructions.

[0206] Initial VHP is injected into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline;

[0207] Receive a VHP concentration measurement command from the VHP concentration measurement unit, and obtain the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline;

[0208] The VHP sterilization adjustment module 103 is used to receive VHP concentration adjustment instructions from the VHP concentration adjustment unit and to obtain updated VHP sterilization pipelines based on the VHP concentration adjustment instructions and the target VHP concentration set.

[0209] The sterilization completion verification module 104 is used to obtain the sterilization CT value based on the updated VHP sterilization pipeline and the preset sterilization time, and to obtain the sterilization end signal based on the sterilization CT value and the preset target CT value.

[0210] Based on the sterilization end signal, the transmitting device is turned off using a pre-built controller to obtain a standby transmitting device. Based on the standby transmitting device and the updated VHP sterilization pipeline, the sterilization pipeline to be processed is obtained. The waste gas of the sterilization pipeline to be processed is treated using a pre-built VHP decomposer to obtain the target sterilization pipeline.

[0211] VHP sterilization is achieved based on the target sterilization pipeline.

[0212] In detail, the modules in the VHP-based sterilization system 100 described in this embodiment of the invention employ the same methods as described above during use. Figure 1 The sterilization method based on VHP described herein uses the same technical means and can produce the same technical effect, so it will not be repeated here.

[0213] like Figure 3 The diagram shown is a schematic diagram of an electronic device for implementing a VHP-based sterilization method according to an embodiment of the present invention.

[0214] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a VHP-based sterilization method program.

[0215] The memory 11 includes at least one type of readable storage medium, such as flash memory, portable hard drive, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, magnetic disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as a portable hard drive. In other embodiments, the memory 11 can be an external storage device of the electronic device 1, such as a plug-in portable hard drive, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the electronic device 1. Furthermore, the memory 11 includes both internal storage units and external storage devices of the electronic device 1. The memory 11 can be used not only to store application software and various types of data installed on the electronic device 1, such as the code of a VHP-based sterilization method program, but also to temporarily store data that has been output or will be output.

[0216] In some embodiments, the processor 10 may be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor 10 is the control unit of the electronic device, connecting various components of the entire electronic device through various interfaces and lines. It executes programs or modules stored in the memory 11 (e.g., a VHP-based sterilization method program) and calls data stored in the memory 11 to perform various functions of the electronic device 1 and process data.

[0217] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0218] Figure 3 Only electronic devices with components are shown; it will be understood by those skilled in the art that... Figure 3 The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0219] For example, although not shown, the electronic device 1 may also include a power supply (such as a battery) to power the various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, thereby enabling functions such as charging management, discharging management, and power consumption management. The power supply may also include one or more DC or AC power supplies, recharging devices, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be described in detail here.

[0220] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a Wi-Fi interface, a Bluetooth interface, etc.), which is typically used to establish communication connections between the electronic device 1 and other electronic devices.

[0221] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), and optionally, a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen, etc. The display may also be appropriately referred to as a screen or display unit, used to display information processed in the electronic device 1 and to display a visual user interface.

[0222] The VHP-based sterilization method program stored in the memory 11 of the electronic device 1 is a combination of multiple instructions, which, when run in the processor 10, can achieve the following:

[0223] The sterilization control environment is confirmed based on the sterilization control command. The sterilization control environment includes a sterilization control system and a pre-constructed sterilization pipeline. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit and a VHP concentration adjustment unit.

[0224] Receive a VHP generation instruction from the VHP generation unit, and obtain an initial VHP based on the VHP generation instruction;

[0225] Initial VHP is injected into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline;

[0226] Receive a VHP concentration measurement command from the VHP concentration measurement unit, and obtain the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline;

[0227] Receive VHP concentration adjustment command from VHP concentration adjustment unit, and obtain updated VHP sterilization pipeline based on the VHP concentration adjustment command and target VHP concentration set;

[0228] The sterilization CT value is obtained based on the updated VHP sterilization pipeline and the preset sterilization time, and the sterilization end signal is obtained based on the sterilization CT value and the preset target CT value.

[0229] Based on the sterilization end signal, the transmitting device is turned off using a pre-built controller to obtain a standby transmitting device. Based on the standby transmitting device and the updated VHP sterilization pipeline, the sterilization pipeline to be processed is obtained. The waste gas of the sterilization pipeline to be processed is treated using a pre-built VHP decomposer to obtain the target sterilization pipeline.

[0230] VHP sterilization is achieved based on the target sterilization pipeline.

[0231] Specifically, the processor 10's implementation method for the above instructions can be found in [reference needed]. Figures 1 to 3 The descriptions of the relevant steps in the corresponding embodiments are not repeated here.

[0232] Furthermore, if the modules / units integrated in the electronic device 1 are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0233] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor of an electronic device, can perform the following:

[0234] The sterilization control environment is confirmed based on the sterilization control command. The sterilization control environment includes a sterilization control system and a pre-constructed sterilization pipeline. The sterilization control system includes a VHP generation unit, a VHP concentration measurement unit and a VHP concentration adjustment unit.

[0235] Receive a VHP generation instruction from the VHP generation unit, and obtain an initial VHP based on the VHP generation instruction;

[0236] Initial VHP is injected into the sterilization pipeline using a pre-constructed launching device to obtain a VHP sterilization pipeline;

[0237] Receive a VHP concentration measurement command from the VHP concentration measurement unit, and obtain the target VHP concentration set based on the VHP concentration measurement command and the VHP sterilization pipeline;

[0238] Receive VHP concentration adjustment command from VHP concentration adjustment unit, and obtain updated VHP sterilization pipeline based on the VHP concentration adjustment command and target VHP concentration set;

[0239] The sterilization CT value is obtained based on the updated VHP sterilization pipeline and the preset sterilization time, and the sterilization end signal is obtained based on the sterilization CT value and the preset target CT value.

[0240] Based on the sterilization end signal, the transmitting device is turned off using a pre-built controller to obtain a standby transmitting device. Based on the standby transmitting device and the updated VHP sterilization pipeline, the sterilization pipeline to be processed is obtained. The waste gas of the sterilization pipeline to be processed is treated using a pre-built VHP decomposer to obtain the target sterilization pipeline.

[0241] VHP sterilization is achieved based on the target sterilization pipeline.

[0242] In the embodiments provided by this invention, it should be understood that the disclosed devices, systems, and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative, and actual implementations may have other classification methods.

[0243] The modules described as separate components may or may not be physically separate. The components shown as modules 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 modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0244] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional modules.

[0245] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0246] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method of VHP-based sterilization, characterized in that, The method comprises: receiving sterilization control instructions, confirming a sterilization control environment based on the sterilization control instructions, wherein the sterilization control environment comprises a sterilization control system and a pre-constructed sterilization pipeline, and the sterilization control system comprises a VHP generating unit, a VHP concentration measuring unit and a VHP concentration adjusting unit; receiving VHP generation instructions from the VHP generating unit, and obtaining initial VHP based on the VHP generation instructions; injecting the initial VHP into the sterilization pipeline by using a pre-constructed injection device to obtain a VHP sterilization pipeline; receiving VHP concentration measuring instructions from the VHP concentration measuring unit, and obtaining a target VHP concentration set based on the VHP concentration measuring instructions and the VHP sterilization pipeline; wherein the obtaining of the target VHP concentration set based on the VHP concentration measuring instructions and the VHP sterilization pipeline comprises: obtaining a detection distance for setting a VHP concentration detection point based on the VHP concentration measuring instructions, and confirming a plurality of VHP concentration detection points on the VHP sterilization pipeline according to the detection distance; for each of the plurality of VHP concentration detection points, performing the following operations: obtaining a VHP concentration detection value set based on the VHP concentration detection point and a pre-constructed concentration sensor; obtaining a VHP concentration detection average value based on the VHP concentration detection value set; comparing the VHP concentration detection average value with a pre-set concentration detection threshold value, and if the VHP concentration detection average value is greater than or equal to the concentration detection threshold value, taking the VHP concentration detection average value as a target VHP concentration; summarizing the target VHP concentration to obtain the target VHP concentration set; if the VHP concentration detection average value is less than the concentration detection threshold value, obtaining an updated injection rate, wherein the updated injection rate is twice the initial injection rate, obtaining an updated VHP concentration detection average value based on the updated injection rate, taking the updated VHP concentration detection average value as the VHP concentration detection average value, returning to the step of comparing the VHP concentration detection average value with the pre-set concentration detection threshold value until the target VHP concentration set is obtained; receiving VHP concentration adjusting instructions from the VHP concentration adjusting unit, and obtaining an updated VHP sterilization pipeline based on the VHP concentration adjusting instructions and the target VHP concentration set; wherein the obtaining of the updated VHP sterilization pipeline based on the VHP concentration adjusting instructions and the target VHP concentration set comprises: for each of the target VHP concentration set, performing the following operations based on the VHP concentration adjusting instructions: obtaining a sterilization concentration range, wherein the sterilization concentration range comprises a maximum sterilization concentration and a minimum sterilization concentration; comparing the target VHP concentration with the sterilization concentration range, if the target VHP concentration is less than or equal to the maximum sterilization concentration and greater than or equal to the minimum sterilization concentration, taking the target VHP concentration as a qualified VHP concentration, if the target VHP concentration is greater than the maximum sterilization concentration or less than the minimum sterilization concentration, taking the target VHP concentration as an unqualified VHP concentration; respectively counting the number of qualified VHP concentrations and unqualified VHP concentrations to obtain a qualified concentration value and an unqualified concentration value; Obtaining an unqualified ratio value based on the qualified concentration value and the unqualified concentration value; Comparing the unqualified ratio value with a preset ratio threshold value, if the unqualified ratio value is less than the ratio threshold value, taking the VHP sterilization pipeline as an updated VHP sterilization pipeline; If the unqualified ratio value is greater than the ratio threshold value, obtaining an updated emitting device based on the target VHP concentration set and a pre-constructed fuzzy control algorithm, obtaining an updated VHP concentration set based on the updated emitting device, taking an updated VHP concentration in the updated VHP concentration set as the target VHP concentration, returning to the step of comparing the target VHP concentration with the sterilization concentration range until an updated VHP sterilization pipeline is obtained; Wherein, the obtaining of the updated emitting device based on the target VHP concentration set and the pre-constructed fuzzy control algorithm comprises: Obtaining an unqualified VHP concentration set based on the target VHP concentration set, wherein the unqualified VHP concentration set comprises a plurality of unqualified VHP concentrations; Obtaining a sterilization concentration mean value based on the sterilization concentration range, wherein the sterilization concentration mean value is the mean value of the maximum sterilization concentration and the minimum sterilization concentration; Obtaining an unqualified concentration mean value based on the unqualified VHP concentration set; Obtaining a first regulation value based on the sterilization concentration mean value and the unqualified concentration mean value, wherein the first regulation value is the difference between the sterilization concentration mean value and the unqualified concentration mean value; Obtaining an unqualified concentration standard deviation using the unqualified VHP concentration set, wherein the unqualified concentration standard deviation is the standard deviation of the plurality of unqualified VHP concentrations; Obtaining an injection rate of the emitting device to obtain a first injection rate; Obtaining a second injection rate based on the first regulation value, the unqualified concentration standard deviation, the first injection rate, and the fuzzy control algorithm; Obtaining an updated emitting device based on the second injection rate; Obtaining a sterilization CT value based on the updated VHP sterilization pipeline and a preset sterilization time, and obtaining a sterilization end signal based on the sterilization CT value and a preset target CT value; Based on the sterilization end signal, using a pre-constructed controller to turn off the emitting device to obtain a standby emitting device, obtaining a to-be-processed sterilization pipeline based on the standby emitting device and the updated VHP sterilization pipeline, and using a pre-constructed VHP decomposer to perform waste gas treatment on the to-be-processed sterilization pipeline to obtain a target sterilization pipeline; Realizing VHP sterilization based on the target sterilization pipeline.

2. The VHP-based sterilization process of claim 1, wherein, The obtaining of the initial VHP based on the VHP generation instruction comprises: Obtaining a hydrogen peroxide solution based on the VHP generation instruction; Obtaining a vaporization device, and using a pre-constructed temperature sensor to monitor the temperature of the vaporization device to obtain an actual temperature value; Obtaining an optimal vaporization temperature range, wherein the optimal vaporization temperature range comprises a maximum vaporization temperature value and a minimum vaporization temperature value; Obtaining a target vaporization temperature value based on the optimal vaporization temperature range, wherein the target vaporization temperature value is the mean value of the maximum vaporization temperature value and the minimum vaporization temperature value; Obtaining a temperature regulation value based on the actual temperature value and the target vaporization temperature value; Obtaining an updated vaporization device based on the temperature regulation value, a preset control algorithm, and the vaporization device; Obtaining the initial VHP based on the hydrogen peroxide solution and the updated vaporization device.

3. The VHP-based sterilization process of claim 2, wherein, The initial VHP is injected into the sterilization pipeline by using the pre-constructed launching device to obtain a VHP sterilization pipeline, including: A preset compressed inert gas is injected into the sterilization pipeline by using the launching device to obtain an updated sterilization pipeline; The pressure of the updated sterilization pipeline is monitored by using the pre-constructed pressure sensor to obtain an initial pressure value; An updated pressure value is obtained based on the pressure sensor, a preset pressure maintaining time and the updated sterilization pipeline; A pressure drop value is obtained by calculating the difference between the initial pressure value and the updated pressure value; The pressure drop value is compared with a preset pressure drop threshold value, if the pressure drop value is less than or equal to the pressure drop threshold value, the sterilization pipeline is a qualified sterilization pipeline, if the pressure drop value is greater than the pressure drop threshold value, the sterilization pipeline is replaced to obtain a to-be-confirmed sterilization pipeline, the to-be-confirmed sterilization pipeline is used as the sterilization pipeline, and the step of injecting the preset compressed inert gas into the sterilization pipeline by using the launching device is returned until a qualified sterilization pipeline is obtained; The qualified sterilization pipeline is dried by using the pre-constructed desiccant to obtain a dried sterilization pipeline; An initial injection rate is obtained based on the dried sterilization pipeline and a preset initial VHP concentration; The initial VHP is injected into the dried sterilization pipeline by using the launching device at the initial injection rate to obtain a VHP sterilization pipeline.

4. The VHP-based sterilization process of claim 3, wherein, The sterilization CT value is obtained based on the updated VHP sterilization pipeline and a preset sterilization time, including: A set of monitoring time points is obtained based on the sterilization time and a preset monitoring time interval; The following operations are performed for each VHP concentration detection point in a plurality of VHP concentration detection points based on the updated VHP sterilization pipeline: An updated sterilization concentration sequence is obtained based on the VHP concentration detection point, a concentration sensor and the set of monitoring time points, wherein the updated sterilization concentration sequence is sorted in ascending order of the monitoring time points; An initial CT value is obtained based on the updated sterilization concentration sequence and the set of monitoring time points, wherein the calculation formula of the initial CT value is as follows: ； wherein, denotes the initial CT value, denotes the update sterilization concentration in the update sterilization concentration sequence, denotes the update sterilization concentration in the update sterilization concentration sequence, denotes the update sterilization concentration in the update sterilization concentration sequence, denotes the update sterilization concentration in the update sterilization concentration sequence, denotes the total number of update sterilization concentrations in the update sterilization concentration sequence, denotes the monitoring time point corresponding to the update sterilization concentration denotes the monitoring time point corresponding to the update sterilization concentration denotes the monitoring time point corresponding to the update sterilization concentration denotes the monitoring time point corresponding to the update sterilization concentration The initial CT values are summarized to obtain a set of initial CT values; A sterilization CT value is obtained based on the set of initial CT values, wherein the sterilization CT value is the average of the initial CT values in the set of initial CT values.

5. The VHP-based sterilization method of claim 4, wherein, The sterilization end signal is obtained based on the sterilization CT value and a preset target CT value, including: The sterilization CT value and the target CT value are compared, if the sterilization CT value is greater than or equal to the target CT value, a sterilization end signal is obtained by using the updated VHP sterilization pipeline; If the sterilization CT value is less than the target CT value, a target CT difference value is obtained by calculating the difference between the target CT value and the sterilization CT value, a new sterilization time is obtained based on the target CT difference value; A new sterilization CT value is obtained based on the new sterilization time; An updated sterilization CT value is obtained based on the new sterilization CT value and the sterilization CT value, wherein the updated sterilization CT value is the sum of the new sterilization CT value and the sterilization CT value; The updated sterilization CT value is used as the sterilization CT value, and the step of comparing the sterilization CT value and the target CT value is returned until the sterilization end signal is obtained.

6. The VHP-based sterilization method of claim 5, wherein, The target sterilization pipeline is obtained by using the pre-constructed VHP decomposer to treat exhaust gas of the to-be-processed sterilization pipeline. Residual VHP is obtained based on the to-be-processed sterilization pipeline. The residual VHP is treated by using a VHP decomposer to obtain to-be-confirmed VHP. The to-be-confirmed VHP is monitored by using a concentration sensor to obtain a to-be-confirmed VHP concentration. The to-be-confirmed VHP concentration is compared with a preset safety concentration threshold value, and if the to-be-confirmed VHP concentration is less than the safety concentration threshold value, the sterilization pipeline corresponding to the to-be-confirmed VHP concentration is taken as the target sterilization pipeline. If the to-be-confirmed VHP concentration is greater than the safety concentration threshold value, the to-be-confirmed VHP corresponding to the to-be-confirmed VHP concentration is taken as the residual VHP, and the step of treating the residual VHP by using the VHP decomposer is returned until the target sterilization pipeline is obtained.

7. A VHP-based sterilization system characterized in that, The system for performing the VHP-based sterilization method according to any one of claims 1-6 comprises: A sterilization environment confirmation module configured to receive a sterilization control instruction and confirm a sterilization control environment based on the sterilization control instruction, wherein the sterilization control environment comprises a sterilization control system and a pre-constructed sterilization pipeline, and the sterilization control system comprises a VHP generation unit, a VHP concentration measurement unit, and a VHP concentration adjustment unit. A VHP generation and measurement module configured to receive a VHP generation instruction from the VHP generation unit and obtain initial VHP based on the VHP generation instruction. The initial VHP is injected into the sterilization pipeline by using a pre-constructed launching device to obtain a VHP sterilization pipeline. A VHP concentration measurement instruction is received from the VHP concentration measurement unit, and a target VHP concentration set is obtained based on the VHP concentration measurement instruction and the VHP sterilization pipeline. A VHP sterilization adjustment module configured to receive a VHP concentration adjustment instruction from the VHP concentration adjustment unit and obtain an updated VHP sterilization pipeline based on the VHP concentration adjustment instruction and the target VHP concentration set. A sterilization completion verification module configured to obtain a sterilization CT value based on the updated VHP sterilization pipeline and a preset sterilization time, and obtain a sterilization end signal based on the sterilization CT value and a preset target CT value. Based on the sterilization end signal, the launching device is closed by using a pre-constructed controller to obtain a standby launching device, a to-be-processed sterilization pipeline is obtained based on the standby launching device and the updated VHP sterilization pipeline, and the to-be-processed sterilization pipeline is treated by using a pre-constructed VHP decomposer to obtain a target sterilization pipeline. The VHP sterilization is realized based on the target sterilization pipeline.

Images