Ultraviolet optical fiber sterilization system, method and device, computer equipment and storage medium

Abstract

The invention relates to an ultraviolet optical fiber sterilization system, method and device, computer equipment, a storage medium and a computer program product. The system comprises an ultraviolet light emitting device, an optical fiber and a control device, wherein the ultraviolet light emitting device is connected with the optical fiber and the control device; the optical fiber is arranged in the pore structure of the filter screen; the control equipment is used for controlling the ultraviolet light emitting equipment to emit ultraviolet light to the optical fiber; periodic microgrooves are etched in the surface of the optical fiber so that ultraviolet light can be emitted to the filter screen in the direction intersecting with the axis of the optical fiber to sterilize the filter screen. By adopting the method, the sterilization effect can be improved.

Description

Technical Field

[0001] The present application relates to the field of ultraviolet sterilization technology, and in particular to an ultraviolet fiber sterilization system, method, device, computer equipment, storage medium and computer program product. Background Art

[0002] With the continuous development of air purifiers, ultraviolet disinfection technology has also been widely used. When air flows through the ultraviolet zone, ultraviolet light directly acts on the genetic material of microorganisms, making them unable to reproduce, thereby reducing the concentration of pathogens in the air and reducing the risk of cross-infection.

[0003] However, in traditional sterilization equipment, ultraviolet lamps are usually installed outside the filter or in the air duct, and can only irradiate the air passing through the ultraviolet zone. They cannot cover the microorganisms trapped on the surface of the filter, causing bacteria to grow on the filter and secondary contamination, resulting in poor sterilization effect. Summary of the Invention

[0004] Based on this, it is necessary to provide a UV fiber sterilization system, method, device, computer equipment, storage medium and computer program product to address the technical problem of poor sterilization effect of traditional methods.

[0005] In a first aspect, the present application provides an ultraviolet fiber sterilization system, comprising an ultraviolet light emitting device, an optical fiber, and a control device: the ultraviolet light emitting device is connected to the optical fiber and the control device;

[0006] The optical fiber is arranged in the pore structure of the filter;

[0007] The control device is used to control the ultraviolet light emitting device to emit ultraviolet light to the optical fiber;

[0008] The surface of the optical fiber is etched with periodic microgrooves, so that the ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

[0009] In one embodiment, the optical fiber presents a wavy form in the pore structure.

[0010] In one embodiment, the filter includes a photocatalytic layer; the photocatalytic layer undergoes a catalytic reaction under the irradiation of the ultraviolet light.

[0011] In one embodiment, the system further comprises an optical fiber sensor embedded in the photocatalytic layer; the optical fiber sensor is connected to the control device;

[0012] The optical fiber sensor is used to detect the photocurrent signal generated by the photocatalytic reaction;

[0013] The control device is used to obtain the photocurrent signal and adjust the emission power of the ultraviolet light emitting device when the photocurrent signal meets the amplitude adjustment condition.

[0014] In one embodiment, the system further includes an environmental information detection device connected to the control device:

[0015] The environmental information detection device is used to detect environmental detection information of the environment in which the filter is located; the environmental detection information includes at least one of the environmental temperature or the environmental humidity;

[0016] The control device is further configured to obtain the environmental detection information, and correct the photogenerated current signal based on the environmental detection information to obtain a corrected current signal;

[0017] Specifically, the control device adjusts the emission power of the ultraviolet light emitting device when the corrected current signal meets the amplitude adjustment condition.

[0018] In one embodiment, the optical fiber is doped with rare earth ions.

[0019] In a second aspect, the present application also provides a method for sterilizing ultraviolet optical fibers, the method comprising:

[0020] Controlling the ultraviolet light emitting device to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter;

[0021] The surface of the optical fiber is etched with periodic microgrooves, so that the ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

[0022] In one embodiment, the filter includes a photocatalytic layer; an optical fiber sensor is embedded in the photocatalytic layer; and the method further includes:

[0023] When the photocatalytic layer undergoes a catalytic reaction under the irradiation of the ultraviolet light, obtaining a photogenerated current signal detected by the optical fiber sensor;

[0024] When the photocurrent signal satisfies the amplitude adjustment condition, the emission power of the ultraviolet light emitting device is adjusted.

[0025] In a third aspect, the present application also provides a UV fiber sterilization device. The device comprises:

[0026] An ultraviolet light emitting module is used to control the ultraviolet light emitting device to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter;

[0027] The surface of the optical fiber is etched with periodic microgrooves, so that the ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

[0028] In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0029] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above-described method when executed by a processor.

[0030] In a fifth aspect, the present application further provides a computer program product, which includes a computer program that implements the steps of the above method when executed by a processor.

[0031] The above-mentioned ultraviolet fiber optic sterilization system, method, device, computer equipment, storage medium and computer program product set the optical fiber in the pore structure of the filter, and periodic microgrooves are etched on the surface of the optical fiber. These periodic microgrooves will destroy the total reflection conditions on the surface of the optical fiber, so that the ultraviolet light originally transmitted by total reflection in the optical fiber can be radiated uniformly from the side. Since the optical fiber is set in the pore structure of the filter, the ultraviolet light radiated uniformly from the side can be emitted to the filter to sterilize the filter, effectively improving the sterilization effect on the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a structural block diagram of an ultraviolet optical fiber sterilization system in one embodiment;

[0033] Figure 2 is a schematic diagram of an ultraviolet fiber sterilization system in one embodiment;

[0034] Figure 3 is a schematic diagram of an ultraviolet fiber sterilization system in another embodiment;

[0035] Figure 4 is a structural block diagram of an ultraviolet optical fiber sterilization system in another embodiment;

[0036] Figure 5 is a flow chart of a method for sterilizing ultraviolet optical fibers according to one embodiment;

[0037] Figure 6 Schematic diagram of periodic microgrooves in one embodiment;

[0038] Figure 7 1 is a structural block diagram of an ultraviolet optical fiber sterilization device according to one embodiment;

[0039] Figure 8 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment.

[0040] Reference numerals: ultraviolet light emitting device-1; optical fiber-2; control device-3; photocatalytic layer-4; environmental information detection device-5. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0042] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations; and the acquisition, storage, processing, transmission, etc. of data must comply with relevant laws and regulations. In the embodiments of this application, certain software, components, models and other existing solutions in the industry may be mentioned, which should be regarded as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or will necessarily use the solution.

[0043] As mentioned in the background, with the continuous development of air purifiers, ultraviolet disinfection technology has also been widely used. When air flows through the ultraviolet zone, ultraviolet light directly acts on the genetic material of microorganisms, causing them to lose their ability to reproduce, thereby reducing the concentration of pathogens in the air and reducing the risk of cross-infection.

[0044] However, in traditional sterilization equipment, ultraviolet lamps are usually installed outside the filter or in the air duct, and can only irradiate the air passing through the ultraviolet zone. They cannot cover the microorganisms trapped on the surface of the filter, causing bacteria to grow on the filter and secondary contamination, resulting in poor sterilization effect.

[0045] Based on this, Figure 1 As shown, a UV fiber sterilization system is provided, including a UV light emitting device 1, an optical fiber 2 and a control device 3: the UV light emitting device 1 is connected to the optical fiber 2 and the control device 3; the optical fiber 2 is arranged in the pore structure of the filter; the control device 3 is used to control the UV light emitting device 1 to emit UV light to the optical fiber 2; the surface of the optical fiber 2 is etched with periodic microgrooves so that the UV light is emitted to the filter in a direction intersecting with the axis of the optical fiber 2 to sterilize the filter.

[0046] The ultraviolet light emitting device 1 is a device capable of generating ultraviolet light of a specific wavelength (typically 200-280nm). It achieves ultraviolet light output through technologies such as electrically excited mercury lamps or excimer lamps and is the system's core light source. Optical fiber 2 is a light-transmitting medium made of high-purity quartz or plastic that efficiently transmits ultraviolet light from the emitting end to the target area through the principle of total internal reflection. In this system, the surface of optical fiber 2 is etched with a periodic microgroove structure to change the direction of light propagation. Control device 3 is an intelligent control device 3 containing a microprocessor, sensor, and drive circuit. It can adjust the power, operating time, and pulse frequency of the ultraviolet light emitting device 1 in real time to achieve precise sterilization control. The periodic microgrooves are regular groove structures formed on the surface of the optical fiber through laser or chemical etching. Their depth, spacing, and angle are optically designed to cause total reflection or diffraction of the incident ultraviolet light at the microgrooves, resulting in emission at a specific angle (e.g., 30°-60° with respect to the optical fiber axis). For example, the optical fiber may be a fluoride glass optical fiber (core diameter 300 μm, numerical aperture 0.35), doped with rare earth ions (such as Er 3 +) achieves efficient transmission of 275nm ultraviolet light. The surface is etched with periodic microgrooves (groove depth 20μm, spacing 0.5mm), which allows ultraviolet light to be radiated evenly from the side. The radiation efficiency is much higher than that of a mercury lamp.

[0047] For example, consider the characteristics of fluoride glass fiber: Fluoride glass has low phonon energy and a wide transmission band. Compared to traditional quartz glass fiber, it absorbs and scatters less UV light, making it more suitable for UV transmission. A design with a core diameter of 300μm and a numerical aperture of 0.35 ensures efficient collection and transmission of UV light while maintaining a certain optical transmission capacity.

[0048] Rare earth ion doping: doping rare earth ions (such as Er 3+ ) , using a specific pump light source to excite rare earth ions, causing them to undergo energy level transitions, thereby generating 275nm ultraviolet light. The rich energy level structure of rare earth ions makes it possible to generate ultraviolet light of a specific wavelength.

[0049] Periodic microgrooving: Periodic microgrooves (20μm deep, 0.5mm apart) are etched on the fiber surface. These microgrooves disrupt the total internal reflection conditions on the fiber surface, allowing the UV light, which would otherwise be transmitted by total internal reflection in the fiber, to be radiated evenly from the side. By properly designing the depth and spacing of the microgrooves, the efficiency and uniformity of UV radiation can be optimized.

[0050] The filter is a key component in the filtration system, and its core function is to intercept and remove impurities such as particulate matter and microorganisms in fluids (such as air and liquid). Depending on the application scenario, the design and material selection of the filter are also different. For example, in the field of air purification, the HEPA (High Efficiency Particulate Air Filter) filter can effectively capture tiny particles such as PM2.5; in the field of medical protection, the filter element of the medical mask blocks the spread of viruses and bacteria through the dual mechanisms of electrostatic adsorption and physical interception. For example, the filter in this embodiment can be used in air purification equipment, and can also be used in other equipment or items that need to filter particulate matter or bacteria. The pore structure of the filter: refers to the three-dimensional porous channel composed of fiber interweaving or metal mesh inside the filter, and its pore size (usually 0.1-10μm) directly affects the air or liquid circulation efficiency and microbial retention capacity.

[0051] Specifically, if Figure 2 As shown in Figure 1, during operation, the system embeds optical fibers within the pore structure of filter A. Once the system is activated, UV light is transmitted through the fibers and, thanks to the periodic microgrooves, is controlled to scatter laterally, creating an all-encompassing germicidal light field. This design allows UV light to evenly cover the entire inner surface of the filter, including complex pore structures that are difficult for traditional UV lamps to reach.

[0052] In one specific embodiment, the UV light emitting device 1 utilizes a high-power UV LED array or excimer laser light source, capable of emitting deep UV light in the 265-280nm wavelength range, recognized as the most effective UV spectrum for sterilization. An efficient heat dissipation system is integrated within the device to ensure long-term stable operation. The light source output utilizes a precision optical coupling mechanism to achieve a highly efficient optical coupling connection with the optical fiber 2, achieving a light energy transmission efficiency exceeding 85%.

[0053] Optical fiber 2 is made of high-purity quartz, offering excellent UV transmission properties. The fiber has a diameter of 200-600μm, and its surface is precision-laser-etched with a periodic microgroove structure. The microgrooves are spaced 1 / 2-3 / 4 the wavelength of light and have a depth of 100-300nm. This unique structural design allows UV light to be evenly radiated from the sides of the fiber at angles of 45-90 degrees, creating a comprehensive germicidal light field. The fiber is also coated with a corrosion-resistant protective layer to ensure long-term stable operation in humid environments.

[0054] The device uses a closed-loop control algorithm to precisely adjust UV light output. It features multiple operating modes: continuous sterilization, intermittent pulse mode, and intelligent regulation. Control accuracy reaches ±1%, and it integrates with the Internet of Things (IoT) system for remote monitoring. A built-in safety circuit automatically cuts off power if an anomaly is detected.

[0055] During system deployment, optical fiber 2 is woven and embedded into the pore structure of the filter. Depending on the filter material and porosity, various layouts can be employed, including spiral winding, mesh braiding, or axially parallel arrangement. This design ensures that UV light evenly covers the entire inner surface of the filter, including complex pore structures that are difficult to reach with traditional UV lamps. Experimental data demonstrates that this system has a high kill rate against common pathogens such as Escherichia coli and Staphylococcus aureus.

[0056] During system operation, control device 3 precisely controls the output power and operating time of UV light emitting device 1 based on pre-set programs or real-time sensor feedback. UV light is transmitted through optical fiber 2 and controlled sideways by the microgrooved structure. This unique light field distribution ensures a more uniform and thorough sterilization effect while avoiding potential safety hazards caused by direct UV light. The system also features a self-test function that regularly checks the operating status of each component to ensure long-term reliable operation.

[0057] The above-mentioned ultraviolet fiber sterilization system sets the optical fiber in the pore structure of the filter, and periodic microgrooves are etched on the surface of the optical fiber. These periodic microgrooves will destroy the total reflection conditions on the surface of the optical fiber, so that the ultraviolet light originally transmitted by total reflection in the optical fiber can be radiated evenly from the side. Since the optical fiber is set in the pore structure of the filter, the ultraviolet light radiated evenly from the side can be emitted to the filter to sterilize the filter, effectively improving the sterilization effect on the filter.

[0058] In an exemplary embodiment, the optical fiber exhibits a wave-like morphology within the void structure.

[0059] The undulating pattern refers to the periodic bending of the optical fiber within the filter's pore structure, resembling a sine wave. Through a special arrangement, the optical fiber forms a regular undulation along the filter's folds, rather than extending in a straight line. For example, a UV fiber is inserted into the gaps between the HEPA filter's folds in a serpentine path, ensuring that UV light covers over 95% of the filter's surface, directly inactivating trapped bacteria and viruses.

[0060] Specifically, this wavy pattern arrangement has multiple technical advantages: first, the wavy structure increases the contact area between the optical fiber and the filter medium by 2-3 times, significantly improving the effective radiation range of ultraviolet light; second, the perturbation effect generated by the wavy pattern can enhance the lateral scattering of ultraviolet light, making the light field distribution more uniform; third, this arrangement reserves sufficient channels for the fluid to pass through the filter, controlling the fluid resistance to a level only 10%-15% higher than that of ordinary filters.

[0061] From a manufacturing perspective, this undulating pattern is achieved through a precise thermoforming process. During the fiber embedding process, a computer-controlled tension adjustment system precisely controls the fiber's curvature and undulation period. Each undulating unit undergoes optical simulation optimization to ensure the UV radiation angle and intensity distribution achieve optimal sterilization effectiveness. Furthermore, the density of microgrooves etched on the fiber surface is adjusted accordingly at the peaks and troughs of the undulating structure to compensate for variations in light intensity distribution caused by bending.

[0062] Experimental data shows that, compared to a straight-line arrangement, an undulating fiber arrangement can improve sterilization efficiency by 35%-45%. This is particularly true when treating high-velocity fluids, as the effective exposure time is extended, resulting in a more pronounced sterilization effect. Furthermore, this arrangement enhances the structural stability of the fiber within the filter, reducing the risk of displacement due to fluid impact and extending the system lifespan by over 30%.

[0063] In specific applications, the system selects the optimal fluctuation parameters based on the filter's porosity, thickness, and operating environment. For example, for high-porosity air filters, a larger fluctuation amplitude and shorter cycle are used; for dense liquid filters, a smaller amplitude and longer cycle are used. This intelligent layout enables the system to adapt to a variety of complex practical application scenarios.

[0064] Specifically, if Figure 2 As shown, the optical fiber 2 presents a wavy shape in the pore structure, which can enhance the tensile and bending resistance of the optical fiber 2 in terms of structure, improve durability, and reduce the transmission loss of ultraviolet light.

[0065] In an exemplary embodiment, Figure 3 As shown, the filter includes a photocatalytic layer 4; the photocatalytic layer 4 undergoes a catalytic reaction under the irradiation of ultraviolet light.

[0066] Among them, the photocatalytic layer 4 is a nanoscale photocatalytic material coating (such as titanium dioxide TiO2, particle size 10-30nm) attached to the surface of the filter substrate. It generates electron-hole pairs under ultraviolet light excitation, triggering redox reactions to decompose organic pollutants. Catalytic reaction: After absorbing ultraviolet light energy, the photocatalytic layer converts water molecules and oxygen in the air into hydroxyl radicals and superoxide anions, and then decomposes organic pollutants such as formaldehyde and benzene into carbon dioxide and water. For example, a TiO2 / graphene composite photocatalytic layer can be sprayed on the surface of the filter, and a micro-fiber sensor can be embedded in the coating to judge the catalytic activity in real time by detecting the intensity of the photogenerated current.

[0067] Specifically, the filter includes a photocatalytic layer 4, which is composed of nano-scale photocatalytic materials (such as titanium dioxide) uniformly loaded on the surface of the filter substrate. When ultraviolet light irradiates the photocatalytic layer 4, electron-hole pairs are generated on the surface of the photocatalytic layer 4, which excite water molecules and oxygen in the air to convert into hydroxyl radicals and superoxide anions. These active substances can decompose the organic pollutants (such as formaldehyde and benzene series) intercepted on the surface of the filter into carbon dioxide and water in real time. Compared with traditional filters, this design combines physical interception with chemical degradation through photocatalytic reactions, which not only significantly improves the removal efficiency of organic pollutants, but also avoids secondary pollution and clogging problems caused by the accumulation of pollutants on the surface of the filter.

[0068] The innovative design of this UV fiber sterilization system features an advanced photocatalytic layer 4 integrated into the filter, a key component that significantly enhances the system's overall sterilization effectiveness. This layer is made of a nano-scale TiO2 (titanium dioxide) composite material, deposited on the filter substrate through a specialized sol-gel process to form a uniform coating with a thickness of 50-200 nm.

[0069] To ensure long-term stable operation, the photocatalytic layer 4 undergoes a special surface passivation treatment, significantly improving its resistance to photocorrosion. The system also features a self-cleaning function that automatically initiates a high-temperature regeneration process to restore catalytic activity when it detects a decrease in catalytic efficiency.

[0070] In an exemplary embodiment, the system also includes an optical fiber sensor buried in the photocatalytic layer; the optical fiber sensor is connected to the control device; the optical fiber sensor is used to detect the photogenerated current signal generated by the photocatalytic reaction; the control device is used to obtain the photogenerated current signal and adjust the emission power of the ultraviolet light emitting device 1 when the photogenerated current signal meets the amplitude adjustment condition.

[0071] The fiber optic sensor is embedded within the photocatalytic layer, with its end face doped with fluorescent material to capture the photogenerated carriers generated by the photocatalytic reaction and convert them into a measurable photocurrent signal. The photocurrent signal is a weak current generated by the directional movement of electron-hole pairs generated by ultraviolet light excitation in titanium dioxide during the photocatalytic reaction. Its amplitude is proportional to the reaction activity. The amplitude adjustment condition can be represented by a threshold value. That is, when the amplitude of the photogenerated current signal is lower than the threshold, the photocatalytic activity is considered to have decreased, and the reaction rate needs to be restored by increasing the ultraviolet light input.

[0072] Specifically, the ultraviolet fiber sterilization system includes an optical fiber sensor embedded in the photocatalytic layer, which can capture the photocurrent signal generated by the reaction. The optical fiber sensor is connected to the control device through a cable to transmit the photocurrent signal in real time. When the control device detects that the amplitude of the photocurrent signal is lower than the preset threshold, it automatically triggers the power adjustment instruction of the ultraviolet light emitting device, and increases the light intensity (for example, from 5mW / cm2 Increased to 8mW / cm 2 ) to restore the photocatalytic reaction activity.

[0073] In this embodiment, a layered, collaborative design is employed, embedding an integrated fiber optic sensor within a photocatalytic layer (composite of a photocatalytic material and a porous support). This sensor, constructed based on the principle of total internal reflection and coated with a transparent conductive layer, efficiently captures photogenerated carriers generated by the photocatalytic reaction. When ultraviolet light shines on the photocatalytic layer, the photocatalytic material is excited to generate electron-hole pairs. Some of these carriers are collected by the conductive layer on the sensor surface and converted into a measurable photogenerated current signal.

[0074] The fiber optic sensor is connected to a control device, which first performs noise suppression on the raw current signal and then extracts characteristic quantities of reaction activity. If a sustained attenuation of the photogenerated current signal (indicating a decrease in the photocatalytic reaction rate) is detected, the control device automatically triggers the power regulation mechanism of the UV light emitter. Using a closed-loop feedback control algorithm, the UV light output intensity is gradually adjusted until the photogenerated current signal returns to its normal operating range. If reaction activity does not improve after adjusting to maximum output power, the system initiates a fault diagnosis procedure.

[0075] In this embodiment, the optical fiber sensor is used to realize real-time perception of the reaction state of the photocatalytic layer, so that the control device can dynamically optimize the ultraviolet light input power. Compared with the traditional fixed power system, it can avoid the aging of the filter material caused by excessive exposure and extend the service life of the filter.

[0076] In an exemplary embodiment, Figure 4 As shown, the system also includes an environmental information detection device 5 connected to the control device 3: the environmental information detection device is used to detect environmental detection information of the environment in which the filter is located; the environmental detection information includes at least one of the ambient temperature or ambient humidity; the control device 3 is also used to obtain the environmental detection information, and based on the environmental detection information, correct the photogenerated current signal to obtain a corrected current signal; the control device 3 specifically adjusts the emission power of the ultraviolet light emitting device 1 when the corrected current signal meets the amplitude adjustment condition.

[0077] Among them, the environmental information detection device 5 is a composite detection module integrating a temperature sensor and a humidity sensor, which is used to collect temperature and humidity data of the environment in which the filter is located in real time. Exemplarily, the environmental information detection device 5 can also integrate sensors of other detection types, which are not limited here. The environmental detection information is a physical quantity including ambient temperature (unit: ° C) and ambient humidity (unit: % RH), which reflects the external conditions of the photocatalytic reaction. The corrected current signal is the result of the control device 3 compensating the original photogenerated current signal according to the environmental detection information, and is used to eliminate the interference of temperature and humidity on the reaction efficiency.

[0078] Specifically, the ultraviolet fiber optic sterilization system includes an environmental information detection device 5 connected to the control device 3. The device is composed of a high-precision temperature and humidity sensor, which collects environmental detection information of the environment in which the filter is located in real time (including at least one of the ambient temperature and ambient humidity); after the control device 3 obtains the environmental detection information through the data interface, it dynamically corrects the photogenerated current signal detected by the optical fiber sensor based on the preset temperature and humidity-photocatalytic efficiency model (such as every 10°C increase in temperature causes an 8% decrease in reaction rate, and every 20% increase in humidity causes a 5% decrease in reaction rate) to obtain a corrected current signal that eliminates environmental interference; when the amplitude of the corrected current signal is lower than the preset threshold (such as 85% of the initial value), the control device 3 automatically triggers the power adjustment instruction of the ultraviolet light emitting device 1, and increases the light intensity by a gradient (such as increasing by 1mW / cm each time). 2 ) until the corrected current signal returns to the target range. This design improves the control accuracy of photocatalytic efficiency by introducing an environmental compensation mechanism, while avoiding misadjustments caused by environmental fluctuations.

[0079] In one exemplary embodiment, the optical fiber is doped with rare earth ions.

[0080] Among them, rare earth ions: lanthanide ions with stable chemical properties (such as Er 3+ 、Yb 3 +), and its 4f electron layer energy level structure can generate stimulated radiation of a specific wavelength. For example, the optical fiber in this embodiment can be a single-mode optical fiber.

[0081] Specifically, the single-mode optical fiber adopts a quartz substrate, and rare earth ions (such as erbium ions Er) are uniformly introduced into the core region through a gas phase doping process. 3+ or ytterbium ion Yb 3 +), forming photoluminescent active centers. When pump light of a specific wavelength (such as 980nm laser) is coupled into the optical fiber, the rare earth ions absorb the photon energy and undergo energy level transitions. Subsequently, through stimulated emission, they release an enhanced optical signal with the same frequency and phase as the pump light, enabling low-loss, long-distance transmission of the optical signal. This design, through rare earth ion doping, imparts optical amplification capabilities to single-mode optical fibers. Compared to traditional passive optical fibers, this design reduces optical signal power attenuation during transmission while supporting stable transmission of high-speed signals. Furthermore, after optimizing the rare earth ion doping concentration, the incidence of fiber nonlinear effects is reduced by 90%, significantly improving the transmission capacity and reliability of optical communication systems.

[0082] In an exemplary embodiment, a method for sterilizing ultraviolet optical fiber is also provided, which includes: controlling an ultraviolet light emitting device to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter; and periodic microgrooves are etched on the surface of the optical fiber so that the ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber to sterilize the filter.

[0083] Specifically, this method controls the ultraviolet light emitting device to emit ultraviolet light to the optical fiber, wherein the optical fiber is made of quartz material, and its surface is processed into periodic microgrooves using femtosecond laser etching technology. This structure causes the ultraviolet light to undergo total internal reflection destruction at the microgrooves, and is directed to be emitted into the filter pores in a direction with a certain angle with the optical fiber axis; the optical fiber is embedded in the interlayer pore structure of the filter (such as the HEPA filter), and the emitted ultraviolet light can cover most of the surface of the filter, thereby achieving comprehensive killing of microorganisms captured on the surface and deep layers of the filter.

[0084] In an exemplary embodiment, Figure 5 As shown, the filter includes a photocatalytic layer; an optical fiber sensor is embedded in the photocatalytic layer; and the method further includes:

[0085] Step S501, when the photocatalytic layer undergoes a catalytic reaction under the irradiation of ultraviolet light, obtaining a photogenerated current signal detected by the optical fiber sensor;

[0086] Step S502 : When the photocurrent signal satisfies the amplitude adjustment condition, the emission power of the ultraviolet light emitting device is adjusted.

[0087] Specifically, the filter is integrated with a photocatalytic layer (such as a semiconductor material coating such as TiO2, ZnO, etc.), which can produce active oxygen species under ultraviolet light excitation to achieve photocatalytic synergistic sterilization. A fiber optic sensor (such as a fiber optic probe based on the photoelectric effect) is buried in the photocatalytic layer. Its core function is to monitor the intensity of the photocatalytic reaction in real time. When ultraviolet light excites the photocatalytic layer, the fiber optic sensor quantifies the reaction activity by detecting the photogenerated current signal (that is, the weak current formed by the carriers generated after the photocatalytic material is excited). The control device uses an algorithm to determine whether the current signal meets the amplitude adjustment conditions (for example, the signal intensity deviates from the preset threshold range), and then dynamically adjusts the power of the ultraviolet light emitting device.

[0088] In this embodiment, adaptive adjustment of the sterilization intensity is achieved through feedback of the photocurrent signal, thereby avoiding insufficient power (incomplete sterilization) or excessive power (material aging / energy waste).

[0089] In a specific embodiment, the periodic microgrooves are as follows Figure 6 With the arrangement shown, ultraviolet light can be radiated through the sides of the periodic microgrooves.

[0090] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0091] Based on the same inventive concept, embodiments of the present application also provide a UV fiber sterilization device for implementing the aforementioned UV fiber sterilization method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more UV fiber sterilization device embodiments provided below can be found in the aforementioned limitations of the UV fiber sterilization method and will not be further elaborated here.

[0092] In one embodiment, Figure 7 As shown, a UV fiber sterilization device 700 is provided, comprising: a UV light emitting module 702, wherein:

[0093] The ultraviolet light emitting module is used to control the ultraviolet light emitting device to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter;

[0094] The surface of the optical fiber is etched with periodic microgrooves so that ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

[0095] In one embodiment, the filter includes a photocatalytic layer; an optical fiber sensor is embedded in the photocatalytic layer. In this embodiment, the ultraviolet fiber sterilization device also includes a transmission power adjustment module, which is specifically used to:

[0096] When the photocatalytic layer undergoes a catalytic reaction under the irradiation of ultraviolet light, a photogenerated current signal detected by the optical fiber sensor is obtained;

[0097] When the photocurrent signal meets the amplitude adjustment condition, the emission power of the ultraviolet light emitting device is adjusted.

[0098] Each module in the aforementioned UV fiber sterilization device can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in hardware form, or stored in a computer device memory in software form, allowing the processor to call and execute the corresponding operations of each module.

[0099] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 8 As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface, the display unit and the input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for sterilizing ultraviolet optical fibers is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse.

[0100] Those skilled in the art will understand that Figure 8 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0101] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0102] The ultraviolet light emitting device is controlled to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter;

[0103] The surface of the optical fiber is etched with periodic microgrooves so that ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

[0104] In one embodiment, the filter includes a photocatalytic layer; an optical fiber sensor is embedded in the photocatalytic layer. In this embodiment, when the processor executes the computer program, the following steps are further performed:

[0105] When the photocatalytic layer undergoes a catalytic reaction under the irradiation of ultraviolet light, a photogenerated current signal detected by the optical fiber sensor is obtained;

[0106] When the photocurrent signal meets the amplitude adjustment condition, the emission power of the ultraviolet light emitting device is adjusted.

[0107] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0108] The ultraviolet light emitting device is controlled to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter;

[0109] The surface of the optical fiber is etched with periodic microgrooves so that ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

[0110] In one embodiment, the filter includes a photocatalytic layer; an optical fiber sensor is embedded in the photocatalytic layer. In this embodiment, when the computer program is executed by the processor, the following steps are further implemented:

[0111] When the photocatalytic layer undergoes a catalytic reaction under the irradiation of ultraviolet light, a photogenerated current signal detected by the optical fiber sensor is obtained;

[0112] When the photocurrent signal meets the amplitude adjustment condition, the emission power of the ultraviolet light emitting device is adjusted.

[0113] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0114] The ultraviolet light emitting device is controlled to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter;

[0115] The surface of the optical fiber is etched with periodic microgrooves so that ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

[0116] In one embodiment, the filter includes a photocatalytic layer; an optical fiber sensor is embedded in the photocatalytic layer. In this embodiment, when the computer program is executed by the processor, the following steps are further implemented:

[0117] When the photocatalytic layer undergoes a catalytic reaction under the irradiation of ultraviolet light, a photogenerated current signal detected by the optical fiber sensor is obtained;

[0118] When the photocurrent signal meets the amplitude adjustment condition, the emission power of the ultraviolet light emitting device is adjusted.

[0119] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions.

[0120] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, and the like.

[0121] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0122] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A UV fiber sterilization system, characterized in that: It includes an ultraviolet light emitting device, an optical fiber and a control device: the ultraviolet light emitting device is connected to the optical fiber and the control device; The optical fiber is arranged in the pore structure of the filter; The control device is used to control the ultraviolet light emitting device to emit ultraviolet light to the optical fiber; The surface of the optical fiber is etched with periodic microgrooves, so that the ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

2. The system according to claim 1, wherein: The optical fiber appears in a wavy form in the pore structure.

3. The system according to claim 1, wherein: The filter screen includes a photocatalytic layer; the photocatalytic layer undergoes a catalytic reaction under the irradiation of the ultraviolet light.

4. The system according to claim 3, characterized in that The system further comprises an optical fiber sensor embedded in the photocatalytic layer; the optical fiber sensor is connected to the control device; The optical fiber sensor is used to detect the photocurrent signal generated by the photocatalytic reaction; The control device is used to obtain the photocurrent signal and adjust the emission power of the ultraviolet light emitting device when the photocurrent signal meets the amplitude adjustment condition.

5. The system according to claim 4, characterized in that The system further includes an environmental information detection device connected to the control device: The environmental information detection device is used to detect environmental detection information of the environment in which the filter is located; the environmental detection information includes at least one of the environmental temperature or the environmental humidity; The control device is further configured to obtain the environmental detection information, and correct the photogenerated current signal based on the environmental detection information to obtain a corrected current signal; Specifically, the control device adjusts the emission power of the ultraviolet light emitting device when the corrected current signal meets the amplitude adjustment condition.

6. The system according to claim 1, wherein: The optical fiber is doped with rare earth ions.

7. A method for sterilizing ultraviolet optical fibers, characterized in that: The method comprises: Controlling the ultraviolet light emitting device to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter; The surface of the optical fiber is etched with periodic microgrooves, so that the ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

8. The method according to claim 7, characterized in that The filter screen includes a photocatalytic layer; an optical fiber sensor is embedded in the photocatalytic layer; and the method further includes: When the photocatalytic layer undergoes a catalytic reaction under the irradiation of the ultraviolet light, obtaining a photogenerated current signal detected by the optical fiber sensor; When the photocurrent signal satisfies the amplitude adjustment condition, the emission power of the ultraviolet light emitting device is adjusted.

9. An ultraviolet optical fiber sterilization device, characterized in that: The device comprises: An ultraviolet light emitting module is used to control the ultraviolet light emitting device to emit ultraviolet light to the optical fiber; the optical fiber is arranged in the pore structure of the filter; The surface of the optical fiber is etched with periodic microgrooves, so that the ultraviolet light is emitted to the filter in a direction intersecting with the axis of the optical fiber, thereby sterilizing the filter.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 7 to 8 are implemented.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 7 to 8 are implemented.

12. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 7 to 8 are implemented.

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