A disinfectant concentration residual detection system and method

Abstract

This application relates to the field of gas detection and discloses a disinfectant concentration residue detection system and method. The system includes: a disinfection device for real-time detection of the disinfectant concentration in the ambient air within the disinfection area, and for real-time detection of the indoor-outdoor air pressure difference within the disinfection area; and an intelligent control device for receiving the disinfectant concentration and the indoor-outdoor air pressure difference, monitoring the changes in the disinfectant concentration and the indoor-outdoor air pressure difference acquired at different operational stages, and triggering the disinfection device to issue a corresponding alarm signal or abnormality warning signal if the monitoring results meet the preset alarm conditions or preset abnormal conditions for the corresponding operational stage. This embodiment achieves joint monitoring of the safety situation within the disinfection area by real-time acquisition of the disinfectant concentration and the indoor-outdoor air pressure difference, thereby ensuring the safety of personnel activities in the disinfection area at various stages before and after disinfection.

Description

Technical Field

[0001] This application relates to the field of gas detection, and more particularly to a disinfectant concentration residue detection system and method. Background Technology

[0002] Sterilizers work by vaporizing or atomizing liquid disinfectant into submicron-sized particles. These particles, dispersed within the sterilization area based on Brownian motion, interact with pathogens to achieve disinfection. However, due to the strong oxidizing, corrosive, and potentially carcinogenic properties of disinfectant components, and the direct damage to the respiratory system caused by inhalation of these particles, humans cannot coexist with the sterilizer during the process. Therefore, reducing disinfectant residue before and after disinfection to ensure the safety of personnel within the sterilization area and effectively managing the risks associated with personnel safety is crucial. While conventional technologies guide users through instruction manuals and incorporate modules to accelerate disinfectant degradation, these methods only reduce the occurrence of hazardous events and do not effectively guarantee the safety of personnel within the sterilization area. Therefore, effectively improving risk management in sterilization areas is a pressing issue that needs to be addressed. Summary of the Invention

[0003] In a first aspect, this application provides a disinfectant concentration residue detection system, comprising:

[0004] The disinfection device is used to detect the concentration of disinfectant in the ambient air within the disinfection area in real time, and to detect the indoor and outdoor air pressure difference value within the disinfection area in real time.

[0005] The intelligent control device is used to receive the disinfectant concentration and the indoor-outdoor air pressure difference value, monitor the changes of the disinfectant concentration and the indoor-outdoor air pressure difference value obtained in different operation stages, and if it is determined that the monitoring results meet the preset alarm conditions or preset abnormal conditions in the corresponding operation stage, the disinfection device is triggered to issue an alarm signal or abnormal prompt signal accordingly.

[0006] In an optional implementation, if the operation stage is the first stage; the intelligent control device is used to trigger the disinfection device to issue a corresponding alarm signal or abnormal prompt signal based on the monitoring results; wherein,

[0007] The preset alarm conditions are: the disinfectant concentration is greater than or equal to a preset concentration threshold, and the indoor-outdoor air pressure difference is a preset pressure difference value;

[0008] The preset abnormal conditions are: the disinfectant concentration is less than the preset concentration threshold, and the indoor-outdoor air pressure difference is the preset pressure difference value.

[0009] In an optional implementation, if the operation stage is the second stage, the intelligent control device is used to trigger the disinfection device to issue an alarm signal only based on the monitoring results.

[0010] The preset alarm conditions are: the disinfectant concentration is greater than or equal to a preset concentration threshold, and the indoor-outdoor air pressure difference is a preset pressure difference value.

[0011] In an optional implementation, the intelligent control device is further used for:

[0012] When the operation is in the first stage, the real-time changes in the concentration of the disinfectant are analyzed to generate a first control signal. The first control signal is used to regulate the air intake state of the air interaction device, thereby adjusting the current indoor and outdoor air pressure difference value in the disinfection area so that the indoor and outdoor air pressure difference value is within a first target range.

[0013] In an optional embodiment, the disinfectant concentration residue detection system further includes an air exchange device;

[0014] The air interaction device is used to receive the first control signal; wherein...

[0015] If the first control signal is an air intake control signal, then the air intake fan is triggered to start, and the air intake state of the air intake fan is adjusted according to the air intake parameters in the air intake control signal; or,

[0016] If the first control signal is the first stop signal, then the intake fan will be shut down.

[0017] In an optional implementation, the intelligent control device is further used for:

[0018] During the first process of the operation phase, the real-time changes in the concentration of the disinfectant are analyzed to generate a second control signal. The second control signal is used to regulate the exhaust state of the air interaction device, thereby adjusting the current indoor and outdoor air pressure difference value in the disinfection area so that the indoor and outdoor air pressure difference value is within a second target range.

[0019] In an optional embodiment, the disinfectant concentration residue detection system further includes an air exchange device;

[0020] The air interaction device is used to receive the second control signal; wherein...

[0021] If the second control signal is an exhaust control signal, then the exhaust fan is triggered to start, and the exhaust state of the exhaust fan is adjusted according to the exhaust parameters in the exhaust control signal; or,

[0022] If the second control signal is a second stop signal, then the exhaust fan will be shut down.

[0023] In an optional embodiment, the disinfection device is further used for:

[0024] The system receives a third control signal from the intelligent control device and controls the working state of the sprayer according to the third control signal, thereby enabling the sprayer to perform the corresponding operation phase in the disinfection area.

[0025] In an optional embodiment, the disinfectant concentration residue detection system further includes an air exchange device, the air exchange device being used for:

[0026] The system receives corresponding control signals from the intelligent control device to control the operating status of the intake fan or exhaust fan; wherein,

[0027] When the air intake fan is triggered to start, it drives the fresh air filter installed at the air intake end of the disinfection area to introduce outdoor fresh air filtered by the fresh air filter into the disinfection area;

[0028] When the exhaust fan is triggered to start, it drives the composite filter installed at the exhaust end of the disinfection area to draw indoor air filtered by the composite filter into the disinfection area.

[0029] Secondly, this application provides a method for detecting residual disinfectant concentration, comprising:

[0030] The disinfection device detects the concentration of disinfectant in the ambient air within the disinfection area in real time, as well as the indoor-outdoor air pressure difference value within the disinfection area in real time.

[0031] The disinfectant concentration and the indoor-outdoor air pressure difference value are received by the intelligent control device. The changes of the disinfectant concentration and the indoor-outdoor air pressure difference value obtained in different operation stages are monitored. If it is determined that the monitoring results meet the preset alarm conditions or preset abnormal conditions in the corresponding operation stage, the disinfection device is triggered to issue an alarm signal or abnormal prompt signal.

[0032] The embodiments of this application have the following beneficial effects:

[0033] This application discloses a disinfectant concentration residue detection system. The system includes: a disinfection device for real-time detection of the disinfectant concentration in the ambient air within the disinfection area, and for real-time detection of the indoor-outdoor air pressure difference within the disinfection area; and an intelligent control device for receiving the disinfectant concentration and the indoor-outdoor air pressure difference, monitoring the changes in the disinfectant concentration and the indoor-outdoor air pressure difference acquired at different operational stages, and triggering the disinfection device to issue an alarm signal or an abnormality warning signal if the monitoring results meet the preset alarm or preset abnormality conditions corresponding to the corresponding operational stage. This embodiment achieves joint monitoring of the safety situation within the disinfection area by acquiring the disinfectant concentration and the indoor-outdoor air pressure difference in real time, thereby ensuring the safety of personnel activities in the disinfection area at various stages before and after disinfection. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be considered as a limitation on the scope of protection of this application. In the various drawings, similar components are numbered similarly.

[0035] Figure 1 This paper shows a schematic diagram of a first structure of the disinfectant concentration residue detection system in an embodiment of this application;

[0036] Figure 2 A second structural schematic diagram of the disinfectant concentration residue detection system in an embodiment of this application is shown;

[0037] Figure 3 This paper shows a third structural schematic diagram of the disinfectant concentration residue detection system in an embodiment of this application;

[0038] Figure 4 This paper illustrates a first flowchart of a disinfectant concentration residue detection method in an embodiment of this application.

[0039] Figure 5 A schematic diagram of a judgment rule in an embodiment of this application is shown. Detailed Implementation

[0040] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0041] The components of the embodiments of this application described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] In the following, the terms “comprising,” “having,” and their cognates, which may be used in various embodiments of this application, are intended only to indicate a particular feature, number, step, operation, element, component, or combination thereof, and should not be construed as excluding, firstly, the presence of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations thereof.

[0043] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0044] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this application pertain. Terms (such as those defined in commonly used dictionaries) shall be interpreted as having the same meaning as in their contextual meaning in the relevant technical field and shall not be construed as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this application.

[0045] In general, on the one hand, manufacturers of sterilizers inform users, through instructions and other materials (i.e., the instructions specify guidance for users), that a certain period of ventilation and degradation is required after the sterilization operation is completed. However, some users operate the equipment without reading and understanding the instructions in detail, or sometimes, users forget the requirement to wait for the residue to degrade before engaging in activities after the sterilization task is completed. This can lead to some safety hazards when using the sterilizer, and relying on the instructions to require users to operate in a standardized manner is not practically feasible for risk management.

[0046] On the other hand, while a module is installed inside the sterilizer to accelerate the degradation of residues, the effectiveness of this method in actual use is relatively limited. Firstly, the degradation of residues is essentially achieved by a small fan driving an airflow carrying disinfectant residues, which is then catalyzed by a catalyst to promote the decomposition of disinfectant particles. However, this airflow is often insufficient to support airflow circulation in a large space (due to volume limitations). Secondly, the degradation of residues itself takes time. Although the degradation is accelerated, the risks during this period after disinfection are still not effectively controlled.

[0047] Based on this, please refer to Figure 1 This application provides a disinfectant concentration residue detection system, which includes a disinfection device 100 and an intelligent control device 200. The disinfection device 100 is connected to the intelligent control device 200. The disinfection device 100 is used to perform disinfection treatment on a disinfection area and collect corresponding data of the disinfection area at different disinfection stages, transmitting the data to the intelligent control device 200 in the form of electrical signals. The corresponding data includes parameters such as air pressure and disinfectant concentration in the air within the disinfection area, which can be set according to actual needs and are not limited here. Furthermore, the intelligent control device 200 is used to intelligently control the working state of the disinfection device 100 and receive the corresponding data sent by the disinfection device 100 to monitor the disinfectant concentration in the disinfection area, thereby improving the safety and reliability of personnel activities within the disinfection area.

[0048] Optionally, the intelligent control device 200 can be an electrical integrated circuit or a software program module, etc. The specific structural design can be set according to actual needs and is not limited here.

[0049] It should be noted that the disinfectant can be an aerosolized disinfectant (such as hydrogen peroxide) or a surface disinfection and sterilization agent (such as peracetic acid, sodium hypochlorite, chlorine dioxide, ethylene oxide, formaldehyde, ozone, etc.). The specific disinfectant components to be tested can be set based on actual needs and are not limited here. Furthermore, this embodiment does not limit its application scenario. For example, air disinfection application scenarios and similar scenarios can be regarded as the application scope of this embodiment.

[0050] In some examples, such as Figure 2 As shown, the disinfectant concentration residue detection system also includes an air interaction device 300. The intelligent control device 200 is used to intelligently control the air interaction device 300 to realize the flow control of indoor and outdoor air in the disinfection area, thereby assisting the disinfectant and fresh air purification in coordination during the disinfection process, making the disinfection effect more efficient and reliable, and accelerating the decomposition of disinfectant particles and the degradation of disinfectant in the air in the disinfection area after disinfection.

[0051] See also, as an example Figure 3 The disinfection device 100 includes a disinfectant detection sensor 210, an ambient pressure differential sensor 220, a sprayer 230, and an alarm 240. The specific structural design of the disinfectant detection sensor 210, the ambient pressure differential sensor 220, the sprayer 230, and the alarm 240 can be set according to actual needs and is not limited here.

[0052] The disinfectant detection sensor 210 is used to detect the concentration of disinfectant in the ambient air within the disinfection area, that is, to detect the concentration of atomized disinfectant particles in the air within the disinfection area; the ambient pressure differential sensor 220, including an indoor probe and an outdoor probe, is used to monitor the indoor and outdoor air pressures of the disinfection area in real time to obtain the indoor and outdoor air pressure difference value.

[0053] The sprayer 230 is used to atomize and spray disinfectant, wherein the atomized disinfectant diffuses throughout the disinfection area by relying on the principle of Brownian motion to achieve efficient disinfection; the alarm 240 is used to issue alarm signals or abnormal signals.

[0054] In one embodiment, the air interaction device 300 includes an intake fan 310 and an exhaust fan 320; the intake fan 310 is used to adjust the air intake volume in the disinfection area to introduce fresh outdoor air; the exhaust fan 320 is used to adjust the air exhaust volume in the disinfection area to exhaust indoor air.

[0055] Optionally, the air exchange device 300 further includes a fresh air filter 330 and a composite filter 340. The fresh air filter 330 is located at the air inlet of the disinfection area. When the air intake fan 310 is started, it drives the fresh air filter 330. Thus, when the air intake fan 310 introduces fresh air, the outdoor fresh air is filtered by the fresh air filter 330 before being introduced into the disinfection area. The fresh air filter 330 can be used to decompose and filter target particles in the outdoor fresh air, preventing indoor air from being polluted by outdoor fresh air. The composite filter 340 is located at the air exhaust of the disinfection area. When the exhaust fan 320 is started, it drives the composite filter 340. When the exhaust fan 320 exhausts indoor air, the indoor air is filtered by the composite filter 340 before being output outdoors. The composite filter 340 can be used to decompose residual disinfectant particles in the indoor air, thereby accelerating the degradation of disinfectant.

[0056] It is understood that the disinfectant concentration residue detection system in this embodiment accelerates the degradation of disinfectant particles through the air interaction device 300, reducing the residual disinfectant concentration in the disinfection area before and after disinfection, thereby ensuring the safety of subsequent personnel activities. On the other hand, the intelligent control device 200 jointly monitors and alarms the disinfectant concentration and indoor and outdoor air pressure values ​​detected in real time by the disinfection device 100, so as to monitor the residual disinfectant concentration in the disinfection area before and after disinfection, and issue corresponding warning information when the residual concentration is too high or the environment in the area is abnormal, thereby playing a monitoring and warning role, realizing risk control of disinfectant residue in the disinfection area, and thus improving the reliability and safety of personnel activities.

[0057] Specifically, the detailed process of the above-mentioned disinfectant concentration residue detection system performing disinfectant concentration residue detection can be found in the following embodiments of the disinfectant concentration residue detection method.

[0058] In some examples, please refer to Figure 4 In the process of detecting residual disinfectant concentration, the disinfectant residual concentration detection system can specifically perform the following steps:

[0059] S10 uses the disinfection device 100 to detect the concentration of disinfectant in the ambient air within the disinfection area in real time, as well as the indoor-outdoor air pressure difference value within the disinfection area in real time.

[0060] S20: The disinfectant concentration and indoor-outdoor air pressure difference value are received by the intelligent control device 200. The changes in the disinfectant concentration and indoor-outdoor air pressure difference value obtained in different operation stages are monitored. If the monitoring results are determined to meet the preset alarm conditions or preset abnormal conditions in the corresponding operation stage, the disinfection device 100 is triggered to issue an alarm signal or abnormal prompt signal.

[0061] In this embodiment, the disinfection device 100 performs disinfection or testing operations at different stages of the disinfection process. The intelligent control device 200 then regulates the disinfection device 100 and monitors the different disinfection stages based on the received data from the disinfection device 100. Optionally, the operation stages in this embodiment include a first stage and a second stage; in this embodiment, the first stage can be the disinfection phase, and the second stage is the post-disinfection phase.

[0062] The disinfection device 100 sprays disinfectant solution into the disinfection area through a sprayer 230 to achieve disinfection. During this process, the intelligent control device 200 can adjust the working status of the sprayer 230 according to actual needs, such as adjusting parameters like spray flow rate and spray time. Specific adjustment parameters can be set according to actual needs and are not limited here.

[0063] Furthermore, the disinfection device 100 detects the concentration of atomized disinfectant particles in the air of the disinfection area (i.e., disinfectant concentration) in different disinfection operation stages through the disinfectant detection sensor 210, and detects the indoor-outdoor pressure difference value of the disinfection area in different disinfection operation stages through the environmental pressure difference sensor 220.

[0064] Then, the intelligent control device 200 is used to receive the disinfectant concentration and indoor-outdoor pressure difference value detected by the disinfection device 100 at different disinfection operation stages to monitor the residual disinfectant concentration at the corresponding disinfection operation stage, avoid safety hazards in the disinfection area, and realize risk control of personnel activities in the disinfection area.

[0065] Specifically, if the operation stage is the first stage, the intelligent control device 200 is used to determine whether the monitoring result meets the preset alarm condition or abnormal condition based on the monitoring result, and then trigger the disinfection device 100 to issue an alarm signal or abnormal prompt signal accordingly. The preset alarm condition is: the disinfectant concentration is greater than or equal to the preset concentration threshold, and the indoor and outdoor air pressure difference is the preset pressure difference value. The preset abnormal condition is: the disinfectant concentration is less than the preset concentration threshold, and the indoor and outdoor air pressure difference is the preset pressure difference value.

[0066] It is understood that if, in the first stage, the concentration of disinfectant in the disinfection area is greater than or equal to the preset concentration threshold, and the indoor-outdoor air pressure difference is the preset pressure difference value, the disinfection device 100 will be triggered to issue an alarm signal. In addition, if, in the first stage, the concentration of disinfectant in the disinfection area is less than the preset concentration threshold, and the indoor-outdoor air pressure difference is the preset pressure difference value, the disinfection device 100 will be triggered to issue an abnormality warning signal. In other cases, no response will be made.

[0067] If the disinfection device 100 issues an alarm signal, it indicates that there is a danger to the current activities of people in the disinfection area; if the disinfection device 100 issues an abnormality warning signal, it indicates that the current activities of people in the disinfection area are safe, but there is an abnormality in the environment within the disinfection area.

[0068] In some examples, if the operation is in the second stage, the intelligent control device 200 is used to determine, based on the monitoring results, whether the monitoring results meet the preset alarm conditions, that is, to only trigger the disinfection device 100 to issue an alarm signal. The preset alarm conditions are: the disinfectant concentration is greater than or equal to a preset concentration threshold, and the indoor-outdoor air pressure difference is a preset pressure difference value.

[0069] It is understandable that if, in the second stage, the concentration of disinfectant in the disinfection area is greater than or equal to the preset concentration threshold, and the indoor and outdoor air pressure difference is the preset pressure difference value, the disinfection device 100 will be triggered to issue an alarm signal; otherwise, no response will be made.

[0070] In this embodiment, the preset concentration threshold and the preset pressure difference value can be set according to actual needs, and there is no limitation on them.

[0071] It should be noted that this embodiment detects the concentration of disinfectant in the disinfection area and the indoor-outdoor air pressure difference, and uses these two values ​​to comprehensively monitor and link the alarm mechanism, so as to improve the accuracy and reliability of the alarm and ensure the safety of personnel activities in different stages of disinfection operations within the disinfection area.

[0072] In one embodiment, the intelligent control device 200 is further configured to: analyze the real-time changes in the disinfectant concentration and generate a first control signal when the operation phase is the first phase; the first control signal is used to regulate the air intake state of the air interaction device 300, thereby adjusting the current indoor and outdoor air pressure difference value in the disinfection area so that the indoor and outdoor air pressure difference value is within a first target range.

[0073] In some examples, the disinfectant concentration residue detection system also includes an air interaction device 300; the air interaction device 300 is used to receive a first control signal; wherein, if the first control signal is an air intake control signal, it triggers the start of the air intake fan 310 and adjusts the air intake state of the air intake fan 310 according to the air intake parameters in the air intake control signal; or, if the first control signal is a first air stop signal, it triggers the shutdown of the air intake fan 310. The air intake parameters include parameters such as air intake volume, air intake time, and air intake rate, which can be set according to actual needs and are not limited here.

[0074] In other words, during the disinfection phase, the intelligent control device 200 can send control signals according to actual needs to regulate the air intake state of the air intake fan 310 of the air interaction device 300, thereby adjusting the indoor and outdoor air pressure difference in the disinfection area and improving the disinfection efficiency and the reliability of the disinfection effect.

[0075] In one embodiment, the intelligent control device 200 is further configured to: analyze the real-time changes in the disinfectant concentration during the first process of the operation phase, and generate a second control signal; the second control signal is used to regulate the exhaust state of the air interaction device 300, thereby adjusting the current indoor and outdoor air pressure difference value in the disinfection area so that the indoor and outdoor air pressure difference value is within a second target range.

[0076] Furthermore, the air interaction device 300 is used to receive a second control signal; wherein, if the second control signal is an exhaust control signal, it triggers the start of the exhaust fan 320 and adjusts the exhaust state of the exhaust fan 320 according to the exhaust parameters in the exhaust control signal; or, if the second control signal is a second stop signal, it triggers the shutdown of the exhaust fan 320. These exhaust parameters include exhaust volume, exhaust time, exhaust rate, etc., and can be set according to actual needs, without limitation here.

[0077] The exhaust fan 320 can be equipped with disinfectant decomposing substances. The specific type of decomposing substances is set according to the composition of the disinfectant particles. In this embodiment, during the post-disinfection stage, the intelligent control device 200 sends control signals according to actual needs to regulate the exhaust state of the exhaust fan 320 in the air interaction device 300, thereby adjusting the indoor and outdoor air pressure difference in the disinfection area, accelerating the decomposition rate of the disinfectant, and ensuring the safety of personnel activities in the disinfection area.

[0078] Furthermore, in this embodiment, the intelligent control device 200 intelligently adjusts the working state of the intake fan 310 or exhaust fan 320 in the air interaction device 300 according to the demand. In turn, the pressure difference between the external and external spatial environments in the disinfection area is adjusted by coordinating the fresh air volume and the exhaust air volume. Specifically, by increasing the intake air and decreasing the exhaust air, the pressure difference value in the disinfection area is made positive; by increasing the exhaust air and decreasing the intake air, the pressure difference value in the area is made negative, making the disinfection effect more efficient and reliable.

[0079] For example, if the required disinfectant concentration to be detected is hydrogen peroxide concentration, the indoor and outdoor air pressure is set to positive when the air intake volume in the disinfection area is greater than the air exhaust volume (i.e., when the disinfection area is currently in the disinfection operation phase), and negative when the air exhaust volume in the disinfection area is greater than the air intake volume (i.e., when the disinfection area is currently in the post-disinfection operation phase). Further, the preset concentration threshold for hydrogen peroxide is set to 1.0 mg / m³. 3 The preset pressure difference value is 0. That is, when the concentration test value exceeds the preset concentration threshold and the indoor and outdoor air pressure is the preset pressure difference value, it means that there is a danger to personnel activities in the disinfection area, and therefore personnel are not allowed to enter the disinfection area.

[0080] During the disinfection process, the disinfection device 100 initiates the disinfection process, and the disinfectant detection sensor 210 (i.e., hydrogen peroxide sensor) simultaneously and continuously monitors the concentration of hydrogen peroxide particles floating in the disinfection area in real time. The detection results are fed back to the intelligent control device 200 via an electrical signal, which then determines the hydrogen peroxide concentration in the disinfection area. During the disinfection process, it is required to ensure the airtightness of the disinfection area, thereby providing the air interaction device 300 with the objective conditions to improve the efficiency of disinfection and residue degradation by adjusting the indoor and outdoor air pressure difference.

[0081] During the disinfection process, the indoor air pressure difference is set to positive pressure. At this time, the air intake fan 310 of the air interaction device 300 drives outdoor air through the fresh air filter 330 into the disinfection area, introducing fresh outdoor air. In this way, the hydrogen peroxide disinfectant and the fresh air purification work in coordination, making the disinfection process more efficient and reliable.

[0082] Furthermore, after the disinfection work is completed, the indoor air pressure difference is switched to negative pressure. The residual hydrogen peroxide particles in the disinfection area are driven by the exhaust fan 320 and discharged after passing through the composite filter 340. The composite filter 340 decomposes the residual hydrogen peroxide particles in the air in the disinfection area, thus accelerating the degradation of the disinfectant. When the disinfectant concentration in the disinfection area degrades to below the safety limit (i.e., the preset concentration threshold), the air interaction device 300 stops working, so that the indoor and outdoor air pressure difference in the disinfection area is balanced.

[0083] During this process, the ambient differential pressure sensor 220 monitors the air pressure difference between the inside and outside of the disinfection area in real time and feeds back the monitoring results to the intelligent control device 200 through an electrical signal. When the door of the disinfection area is opened, the air inside and outside the disinfection area is connected, and the pressure difference between the inside and outside approaches zero. At the same time, due to the limited air volume of the air interaction device 300, it is not possible to establish a pressure difference between the inside and outside of the area when the door is open. The ambient differential pressure sensor 220 feeds back a real-time indoor and outdoor air pressure difference value of 0.

[0084] Therefore, it is unreliable to determine the risk solely based on the indoor-outdoor air pressure difference within the disinfection area. This embodiment, therefore, uses a combination of disinfectant concentration and indoor-outdoor air pressure difference monitoring to determine whether there is a risk of human activity within the disinfection area. Specifically, if human activity causes doors and windows within the disinfection area to be unsealed, resulting in a change in indoor pressure difference, and if the disinfectant concentration within the disinfection area is higher than or equal to a preset concentration threshold, then personnel are not permitted to enter or engage in activities within the disinfection area. This effectively monitors the safety of personnel activities within the disinfection area.

[0085] Specifically, the rules for determining whether there is a risk of human activity in the currently disinfected area can be referred to... Figure 5 As shown, if it is in the first stage (i.e., the spraying and disinfection operation has started and the disinfection is in progress), the air intake is greater than the air exhaust, and the indoor and outdoor air pressure difference (i.e., the ambient pressure difference) is set to positive pressure. At this time, if the doors and windows of the disinfection area leak (i.e., the disinfection area is not sealed), an alarm signal or an abnormality warning signal will be triggered accordingly under different disinfectant concentrations (such as hydrogen peroxide concentration); if the doors and windows of the disinfection area are sealed, no response will be made.

[0086] If in the second stage (i.e., after spraying stops and disinfection ends, in the post-disinfection stage), the exhaust volume is greater than the intake volume, and the indoor and outdoor air pressure difference (i.e., the ambient pressure difference) is set to negative. At this time, if the doors and windows of the disinfection area leak (i.e., the disinfection area is not sealed) and the disinfectant concentration is greater than or equal to the preset concentration threshold, an alarm signal will be triggered accordingly; if the doors and windows of the disinfection area are sealed or the disinfectant concentration is lower than the preset concentration threshold, no response will be made.

[0087] In one optional implementation, the disinfection device 100 is further configured to: receive a third control signal from the intelligent control device 200, and control the working state of the sprayer 230 according to the third control signal, thereby enabling the sprayer 230 to perform the corresponding operation phase in the disinfection area.

[0088] It is understood that the intelligent control device 200 can control the working state and working parameters of the sprayer 230 of the disinfection device 100 through the third control signal. The working state is to start spraying or stop spraying, and the working parameters can be parameters such as spraying time and spraying rate. The specific working parameters can be set and adjusted according to actual needs, and this embodiment does not limit them.

[0089] In this embodiment, joint monitoring is achieved by acquiring the disinfectant concentration and the indoor-outdoor air pressure difference in real time, thereby ensuring the safety of personnel activities in the disinfection area at each stage before and after disinfection.

[0090] This application also provides an intelligent control device 200, which may be, but is not limited to, a desktop computer, laptop, smartphone, tablet, etc., and its form is not limited, mainly depending on whether it needs to support the interface display function of a web browser. Exemplarily, the intelligent control device 200 includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program to cause the intelligent control device 200 to perform the disinfectant concentration residue detection method of this application.

[0091] The processor can be an integrated circuit chip with signal processing capabilities. The processor can be a general-purpose processor, including at least one of a Central Processing Unit (CPU), Graphics Processing Unit (GPU), Network Processor (NP), Digital Signal Processor (DSP), Application-Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application.

[0092] The memory can be, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and Electrically Erasable Programmable Read-Only Memory (EEPROM). The memory stores computer programs, and the processor, upon receiving execution instructions, can execute the computer programs accordingly.

[0093] In addition, this application also provides a computer storage medium for storing the computer program used in the above-described intelligent control device 200, wherein when the computer program is executed on a processor, it implements the disinfectant concentration residue detection method of the above embodiments.

[0094] It is understood that the optional methods in the disinfectant concentration residue detection method of the above embodiments are also applicable to this embodiment, so they will not be described again here.

[0095] The aforementioned computer storage medium can be a non-volatile storage medium or a volatile storage medium. For example, the computer storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0096] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that, as an alternative implementation, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based apparatus that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0097] In addition, the functional modules or units in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0098] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an intelligent control device 200 (which may be a smartphone, personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0099] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A disinfectant concentration residue detection system, characterized in that, include: The disinfection device is used to detect the concentration of disinfectant in the ambient air within the disinfection area in real time, and to detect the indoor and outdoor air pressure difference value within the disinfection area in real time. An intelligent control device is used to receive the disinfectant concentration and the indoor-outdoor air pressure difference value, monitor the changes in the disinfectant concentration and the indoor-outdoor air pressure difference value obtained in different operation stages, and trigger the disinfection device to issue an alarm signal or an abnormality prompt signal when the monitoring results are determined to meet the preset alarm conditions or preset abnormal conditions corresponding to the corresponding operation stage; wherein, the operation stage includes a first stage and a second stage; the first stage is the disinfection stage, and the second stage is the post-disinfection stage; If the operation stage is the first stage; the intelligent control device is used to trigger the disinfection device to issue an alarm signal or an abnormality prompt signal according to the monitoring results; wherein, the preset alarm condition is: the disinfectant concentration is greater than or equal to a preset concentration threshold, and the indoor-outdoor air pressure difference is a preset pressure difference value; the preset abnormal condition is: the disinfectant concentration is less than the preset concentration threshold, and the indoor-outdoor air pressure difference is the preset pressure difference value; If the operation stage is the second stage; the intelligent control device is used to trigger the disinfection device to issue an alarm signal only according to the monitoring results; wherein, the preset alarm condition is: the disinfectant concentration is greater than or equal to a preset concentration threshold, and the indoor and outdoor air pressure difference is a preset pressure difference value.

2. The disinfectant concentration residue detection system according to claim 1, characterized in that, The intelligent control device is also used for: When the operation is in the first stage, the real-time changes in the concentration of the disinfectant are analyzed to generate a first control signal. The first control signal is used to regulate the air intake state of the air interaction device, thereby adjusting the current indoor and outdoor air pressure difference value in the disinfection area so that the indoor and outdoor air pressure difference value is within a first target range.

3. The disinfectant concentration residual detection system of claim 2, wherein, The disinfectant concentration residue detection system also includes an air exchange device; The air interaction device is used to receive the first control signal; wherein... If the first control signal is an air intake control signal, then the air intake fan is triggered to start, and the air intake state of the air intake fan is adjusted according to the air intake parameters in the air intake control signal; or, If the first control signal is the first stop signal, then the intake fan will be shut down.

4. The disinfectant concentration residual detection system of claim 1, wherein, The intelligent control device is also used for: During the first process of the operation phase, the real-time changes in the concentration of the disinfectant are analyzed to generate a second control signal. The second control signal is used to regulate the exhaust state of the air interaction device, thereby adjusting the current indoor and outdoor air pressure difference value in the disinfection area so that the indoor and outdoor air pressure difference value is within a second target range.

5. The disinfectant concentration residual detection system of claim 4, wherein, The disinfectant concentration residue detection system also includes an air exchange device; The air interaction device is used to receive the second control signal; wherein... If the second control signal is an exhaust control signal, then the exhaust fan is triggered to start, and the exhaust state of the exhaust fan is adjusted according to the exhaust parameters in the exhaust control signal; or, If the second control signal is a second stop signal, then the exhaust fan will be shut down.

6. The disinfectant concentration residual detection system of any one of claims 1-5, wherein, The disinfection device is also used for: The system receives a third control signal from the intelligent control device and controls the working state of the sprayer according to the third control signal, thereby enabling the sprayer to perform the corresponding operation phase in the disinfection area.

7. The disinfectant concentration residue detection system according to any one of claims 1-5, characterized in that, The disinfectant concentration residue detection system also includes an air exchange device, which is used for: The system receives corresponding control signals from the intelligent control device to control the operating status of the intake fan or exhaust fan; wherein, When the air intake fan is triggered to start, it drives the fresh air filter installed at the air intake end of the disinfection area to introduce outdoor fresh air filtered by the fresh air filter into the disinfection area; When the exhaust fan is triggered to start, it drives the composite filter installed at the exhaust end of the disinfection area to draw indoor air filtered by the composite filter into the disinfection area.

8. A method for detecting a disinfectant concentration residue, characterized by, include: The disinfection device detects the concentration of disinfectant in the ambient air within the disinfection area in real time, as well as the indoor-outdoor air pressure difference value within the disinfection area in real time. The disinfectant concentration and the indoor-outdoor air pressure difference are received by an intelligent control device. The changes in the disinfectant concentration and the indoor-outdoor air pressure difference obtained in different operation stages are monitored. If the monitoring results are determined to meet the preset alarm conditions or preset abnormal conditions corresponding to the operation stage, the disinfection device is triggered to issue an alarm signal or abnormal prompt signal. The operation stages include a first stage and a second stage. The first stage is the disinfection stage, and the second stage is the post-disinfection stage. If the operation stage is the first stage; the intelligent control device is used to trigger the disinfection device to issue an alarm signal or an abnormality prompt signal according to the monitoring results; wherein, the preset alarm condition is: the disinfectant concentration is greater than or equal to a preset concentration threshold, and the indoor-outdoor air pressure difference is a preset pressure difference value; the preset abnormal condition is: the disinfectant concentration is less than the preset concentration threshold, and the indoor-outdoor air pressure difference is the preset pressure difference value; If the operation stage is the second stage; the intelligent control device is used to trigger the disinfection device to issue an alarm signal only according to the monitoring results; wherein, the preset alarm condition is: the disinfectant concentration is greater than or equal to a preset concentration threshold, and the indoor and outdoor air pressure difference is a preset pressure difference value.

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