UV light source regulation method, control device and UV lamp

Abstract

The application discloses a UV light source regulation method, a control device and a UV lamp, and relates to the technical field of UV lamps. The UV lamp comprises a lampshade, a UV lamp bead arranged on the inner side of the lampshade, a light intensity detection assembly arranged on the inner side of the lampshade and used for detecting the output light intensity of the UV lamp bead, and a power regulation assembly connected with the power supply end of the UV lamp bead. The method comprises the following steps: confirming the light intensity output by the UV lamp bead based on the light intensity detection signal output by the light intensity detection assembly; in the case that the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, controlling the power regulation assembly to gradually increase the driving power output to the UV lamp bead; and in the case that the light intensity detected by the light intensity detection signal is not less than the preset light intensity threshold, controlling the power regulation assembly to stop adjusting the driving power. The application aims to improve the stability of the UV lamp.

Description

Technical Field

[0001] This invention relates to the field of UV lamp technology, and in particular to a UV light source control method, control device, and UV lamp. Background Technology

[0002] UV lamps (ultraviolet lamps) experience a decrease in light intensity output during prolonged operation. For processes such as photocatalysis, curing, and sterilization, this decrease in light intensity directly leads to a deterioration in the effectiveness of these processes. For example, in the photocatalytic electrolyte purification process, if the light intensity decreases while the power remains constant, insufficient photon flux may occur, reducing the reaction rate and resulting in substandard purification performance. Summary of the Invention

[0003] The main objective of this invention is to provide a UV light source control method, which aims to improve the stability of UV lamp operation.

[0004] To achieve the above objectives, this invention proposes a UV light source control method applied to a UV lamp. The UV lamp includes a lampshade, UV lamp beads disposed inside the lampshade, a light intensity detection component disposed inside the lampshade for detecting the output light intensity of the UV lamp beads, and a power adjustment component connected to the power supply terminal of the UV lamp beads. The UV light source control method includes:

[0005] The intensity of light emitted by the UV lamp bead is confirmed based on the light intensity detection signal output by the light intensity detection component.

[0006] When the light intensity detected by the light intensity detection signal is less than the preset light intensity threshold, the power adjustment component is controlled to gradually increase the driving power output to the UV lamp beads.

[0007] If the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the power adjustment component is controlled to stop adjusting the driving power.

[0008] In one embodiment, the light intensity detection component includes multiple sets of light intensity detection units, and the target wavelength ranges responded to by the multiple sets of light intensity detection units do not overlap; the step of confirming the light intensity output by the UV lamp bead based on the light intensity detection signal output by the light intensity detection component specifically includes:

[0009] The target light intensity detection signal is confirmed based on the maximum value corresponding to the multiple light intensity detection signals output by the multiple light intensity detection components.

[0010] Based on the target light intensity detection signal, the light intensity output by the UV lamp bead is confirmed.

[0011] In one embodiment, the UV lamp further includes a temperature detection component disposed inside the lampshade and used to detect the ambient temperature; the light intensity detection component includes a photosensitive light intensity detection unit and a light-shielding light intensity detection unit, wherein the target wavelength range responded to by the photosensitive light intensity detection unit and the target wavelength range responded to by the light-shielding light intensity detection unit are consistent; the step of confirming the light intensity output by the UV lamp bead based on the light intensity detection signal output by the light intensity detection component specifically includes:

[0012] Based on the temperature detection signal output by the temperature detection component, the inner temperature of the lampshade is confirmed;

[0013] Based on the photosensitive light intensity detection signal output by the photosensitive light intensity detection unit, the photosensitive current is confirmed;

[0014] Based on the light intensity detection signal output by the light intensity detection unit, the light-blocking current is confirmed;

[0015] Based on the inner temperature of the lampshade, the photosensitive current, and the light-blocking current, the light intensity detection signal output by the light intensity detection component is corrected, and the light intensity output by the UV lamp bead is confirmed.

[0016] In one embodiment, the step of correcting the light intensity detection signal output by the light intensity detection component based on the inner temperature of the lampshade, the photosensitive current, and the light-blocking current specifically includes:

[0017] Based on the difference between the photosensitive current and the light-blocking current, the current difference value is confirmed;

[0018] The temperature difference value is confirmed based on the difference between the inner temperature of the lampshade and the reference temperature.

[0019] Based on the product of the temperature difference and the temperature coefficient, the coefficient of temperature difference variation is determined;

[0020] Based on the sum of the temperature difference change coefficient and the preset constant, the temperature influence coefficient is confirmed;

[0021] The light intensity detection signal output by the light intensity detection component is corrected based on the quotient of the current difference and the temperature influence coefficient.

[0022] In one embodiment, the step of controlling the power adjustment component to gradually increase the driving power output to the UV lamp beads when the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold specifically includes:

[0023] If the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, the driving power of the power adjustment component is confirmed.

[0024] When the driving power of the power adjustment component is not greater than the preset driving power threshold, the power adjustment component is controlled to gradually increase the driving power output to the UV lamp beads.

[0025] When the driving power of the power adjustment component is greater than a preset driving power threshold, the power adjustment component is controlled to output driving power at the preset driving power threshold.

[0026] In one embodiment, the UV lamp further includes a notification component disposed on the outside of the lampshade; before the step of controlling the power adjustment component to stop adjusting the driving power when the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the method further includes:

[0027] When the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, and the power adjustment component outputs drive power at the preset drive power threshold, the prompting component is controlled to output a prompting signal.

[0028] In one embodiment, before the step of controlling the power adjustment component to stop adjusting the driving power when the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the method further includes:

[0029] If the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the driving power output by the power output component to the UV lamp bead is determined.

[0030] The remaining lifespan of the UV lamp bead is determined based on the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold.

[0031] In one embodiment, the UV lamp further includes a notification component disposed on the outside of the lampshade, and the step of determining the remaining lifespan of the UV lamp bead based on the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold specifically includes:

[0032] If the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold is less than the preset power difference, it is confirmed that the remaining lifespan of the UV lamp bead is less than the preset lifespan, and the prompting component is controlled to output a prompt signal.

[0033] The present invention also proposes a control device, the control device comprising a memory, a processor, and a UV light source control program stored in the memory and executable on the processor, the UV light source control program being configured to implement the steps of the UV light source control method as described in any of the preceding claims.

[0034] The present invention also proposes a UV lamp, the UV lamp comprising a lampshade, a UV lamp bead disposed on the inner side of the lampshade, a light intensity detection component disposed on the inner side of the lampshade and used to detect the light intensity output by the UV lamp bead, a power adjustment component connected to the power supply terminal of the UV lamp bead, and a control device as described above.

[0035] This invention provides a UV light source control method that effectively improves the operational stability of UV lamps. The UV lamp includes a lampshade, UV LEDs disposed inside the lampshade, a light intensity detection component disposed inside the lampshade for detecting the output light intensity of the UV LEDs, and a power adjustment component connected to the power supply terminal of the UV LEDs. The UV light source control method includes: confirming the light intensity output by the UV LEDs based on the light intensity detection signal output by the light intensity detection component; if the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, controlling the power adjustment component to gradually increase the driving power output to the UV LEDs; if the light intensity detected by the light intensity detection signal is not less than the preset light intensity threshold, controlling the power adjustment component to stop adjusting the driving power. This method ensures that the light intensity output by the UV LEDs in the UV lamp remains stable above the preset light intensity threshold. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a schematic flowchart of the UV light source control method of the present invention;

[0038] Figure 2 This is a flowchart illustrating an embodiment of the UV light source control method of the present invention;

[0039] Figure 3 This is a flowchart illustrating another embodiment of the UV light source control method of the present invention;

[0040] Figure 4 This is a flowchart illustrating another embodiment of the UV light source control method of the present invention.

[0041] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0044] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0045] UV lamps (ultraviolet lamps) experience a decrease in light intensity output during prolonged operation. For processes such as photocatalysis, curing, and sterilization, this decrease in light intensity directly leads to a deterioration in the effectiveness of these processes. For example, in the photocatalytic electrolyte purification process, if the light intensity decreases while the power remains constant, insufficient photon flux may occur, reducing the reaction rate and resulting in substandard purification performance.

[0046] To solve the above problems, refer to Figure 1 This invention proposes a UV light source control method applied to a UV lamp. The UV lamp includes a lampshade, UV lamp beads disposed inside the lampshade, a light intensity detection component disposed inside the lampshade for detecting the output light intensity of the UV lamp beads, and a power adjustment component connected to the power supply terminal of the UV lamp beads. The UV light source control method includes:

[0047] S100: Based on the light intensity detection signal output by the light intensity detection component, confirm the light intensity output by the UV lamp bead;

[0048] S200: When the light intensity detected by the light intensity detection signal is less than the preset light intensity threshold, the power adjustment component is controlled to gradually increase the driving power output to the UV lamp beads.

[0049] S300: When the light intensity detected by the light intensity detection signal is not less than the preset light intensity threshold, control the power adjustment component to stop adjusting the driving power.

[0050] It is understandable that the aging of UV lamps will lead to a decrease in light intensity output. This decrease in light intensity output due to UV lamp aging can be stabilized by increasing the driving power of the UV lamp. UV lamps include a lampshade to improve their efficiency, safety, and stability. Furthermore, UV lamp beads emit light in all directions (360°). Without a lampshade, a large amount of ultraviolet light would be scattered in unwanted directions, resulting in energy waste. The inner surface of the lampshade is usually coated with a high-reflectivity material, such as aluminum film, reinforced aluminum, or dielectric film, which reflects the previously lost UV light back to the target area, thereby reducing the number of lamps or power required, and lowering energy consumption and cost. In addition, the light emitted by UVC lamp beads is highly harmful to the skin and eyes; the lampshade physically shields the direct light path, preventing accidental exposure for operators.

[0051] In this embodiment, the intensity of the output light from the UV lamp beads is detected by a light intensity detection component located inside the lamp cover. The light intensity detection component requires a light intensity sensor corresponding to the selected UV lamp beads. Different types of UV light intensity sensors have significantly different sensitivities to different wavelengths of ultraviolet light. If the response band of the light intensity detection sensor does not match the wavelength of the UV light source, the measured value will be severely low or even zero, or false readings may occur due to interference from visible light or infrared light, thus failing to accurately reflect the actual sterilization or curing effect. For example, for UVC lamp beads with wavelengths from 200nm to 280nm, a silicon carbide photodiode or gallium phosphide photodiode lamp is required for detection; for UVA or UVB lamp beads with wavelengths from 300nm to 400nm, a gallium nitride photodiode or enhanced silicon photodiode is required. Furthermore, a corresponding filter can also be included in the light intensity detection component to filter out stray light. The light intensity detection component uses a photodiode corresponding to the wavelength of the light output from the UV lamp beads. When the photon energy is greater than the bandgap of the semiconductor material, electron-hole pairs can be excited, forming a measurable photocurrent under the influence of an applied bias voltage or a built-in electric field. The intensity of the photocurrent is directly proportional to the operating power of the UV lamp chip. Therefore, the intensity of the light emitted by the UV lamp chip can be confirmed by the light intensity detection signal output by the light intensity detection component.

[0052] In this embodiment, a preset light intensity threshold is set according to the application scenario of the UV lamp, thereby ensuring that the light intensity output by the LEDs in the UV lamp meets the requirements of the corresponding scenario. For example, when using a UV lamp to disinfect objects or air, it is necessary to ensure that the light intensity output by the LEDs in the UV lamp is greater than the preset light intensity threshold. If the light intensity is lower than the preset light intensity threshold, even extending the working time of the UV lamp will result in incomplete disinfection. Therefore, it is necessary to confirm whether the light intensity output by the UV LEDs is above the preset light intensity threshold through the light intensity detection signal output by the light intensity detection component, thereby controlling the power adjustment component to adjust the driving power output to the UV LEDs. As can be seen from the above, the aging of the UV lamp will lead to a decrease in its light intensity output, and this problem of light intensity output decrease due to UV lamp aging can be solved by increasing the driving power of the UV lamp to stabilize the light intensity output of the UV lamp. Therefore, when the light intensity detected by the light intensity detection signal is less than the preset light intensity threshold, the driving power output to the UV lamp beads is gradually increased by the power adjustment component, thereby ensuring that the light intensity output by the UV lamp beads reaches the preset light intensity threshold. When the light intensity detected by the light intensity detection signal is not less than the preset light intensity threshold, the power adjustment component stops adjusting the driving power; that is, at this time, the driving power output by the power adjustment component to the UV lamp beads ensures that the light intensity output by the UV lamp beads is not less than the preset light intensity threshold. By detecting the light intensity output by the UV lamp beads and comparing it with the preset light intensity threshold, it is determined whether it is necessary to adjust the driving power output by the power adjustment component to ensure that the light intensity output by the UV lamp beads is always not less than the preset light intensity. The power adjustment component can be selected according to the type of UV lamp beads. For example, when the UV lamp beads are UV LEDs, a PWM switching adjustment component or an analog voltage regulation component can be used; when the UV lamp beads are mercury lamps, an electronic ballast or a silicon controlled rectifier (SCR) voltage regulation circuit can be used.

[0053] By employing a UV light source control method, the operational stability of UV lamps can be effectively improved. The UV lamp includes a lampshade, UV LEDs disposed inside the lampshade, a light intensity detection component disposed inside the lampshade for detecting the output light intensity of the UV LEDs, and a power adjustment component connected to the power supply terminal of the UV LEDs. The UV light source control method includes: confirming the light intensity output by the UV LEDs based on the light intensity detection signal output by the light intensity detection component; if the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, controlling the power adjustment component to gradually increase the driving power output to the UV LEDs; if the light intensity detected by the light intensity detection signal is not less than the preset light intensity threshold, controlling the power adjustment component to stop adjusting the driving power. This method ensures that the light intensity output by the UV LEDs in the UV lamp is stabilized above the preset light intensity threshold.

[0054] refer to Figure 2 In one embodiment of the present invention, the light intensity detection component includes multiple sets of light intensity detection units, and the target wavelength ranges responded to by the multiple sets of light intensity detection units do not overlap; the step of confirming the light intensity output by the UV lamp bead based on the light intensity detection signal output by the light intensity detection component specifically includes:

[0055] S110: Based on the maximum value corresponding to the multiple light intensity detection signals output by the multiple light intensity detection components, confirm the target light intensity detection signal;

[0056] S120: Based on the target light intensity detection signal, confirm the light intensity output by the UV lamp bead.

[0057] In this embodiment, the selection of UV lamp beads may involve differences in wavelength. Using a light intensity detection component that does not match the wavelength of the UV light source will lead to serious measurement errors or even complete failure. Specifically, the responsivity of a photodetector is a function of wavelength. If the peak wavelength of the light source falls in the "trough" or "cutoff region" of the sensor's response curve, the output signal will be extremely weak. For example, when using a common silicon photodiode to detect the light intensity output by a 254nm wavelength UVC lamp bead, although silicon responds at 254nm, without UV enhancement treatment and if the encapsulating epoxy resin absorbs UVC, the actual light intensity detected by the common silicon photodiode may only correspond to 10% of the true value, or even lower. As another example, when using a UVA light intensity detection component to detect a 265nm wavelength UVC LED, its responsivity is close to 0, meaning there is no current signal output. This is because the wavelength range responded to by the UVA light intensity detection component is from 320nm to 400nm. Therefore, to ensure that the light intensity detection component can accurately detect the light intensity output by different UV lamp beads, it needs to include multiple sets of light intensity detection units, and the target wavelength ranges responded to by these units should not overlap. By placing all the light intensity detection units inside the lamp cover, each unit can stably receive the light from the UV lamp beads. By receiving multiple light intensity detection signals output by the multiple sets of units and identifying the maximum value, the value corresponding to this maximum is confirmed as the target light intensity detection signal. In other words, the wavelength detected by the unit outputting this signal corresponds to the wavelength of the light output by the UV lamp beads. After confirming that the maximum value of the multiple light intensity detection signals is the target light intensity detection signal, the light intensity output by the UV lamp beads can be determined. This method allows the light intensity detection component to be compatible with UV lamp beads that output different light wavelengths, thereby improving the accuracy of the light intensity detection signal output by the component.

[0058] refer to Figure 3 In one embodiment of the present invention, the UV lamp further includes a temperature detection component disposed inside the lampshade and used to detect the ambient temperature; the light intensity detection component includes a photosensitive light intensity detection unit and a light-shielding light intensity detection unit, wherein the target wavelength range responded to by the photosensitive light intensity detection unit and the target wavelength range responded to by the light-shielding light intensity detection unit are consistent; the step of confirming the light intensity output by the UV lamp bead based on the light intensity detection signal output by the light intensity detection component specifically includes:

[0059] S130: Based on the temperature detection signal output by the temperature detection component, confirm the inner temperature of the lampshade;

[0060] S140: Based on the photosensitive light intensity detection signal output by the photosensitive light intensity detection unit, confirm the photosensitive current;

[0061] S150: Based on the light-blocking intensity detection signal output by the light-blocking intensity detection unit, confirm the light-blocking current;

[0062] S160: Based on the inner temperature of the lampshade, the photosensitive current, and the light-blocking current, correct the light intensity detection signal output by the light intensity detection component, and confirm the light intensity output by the UV lamp bead.

[0063] It is understandable that temperature has a significant impact on the light intensity detection component, posing a substantial source of system error. Without correction, this can lead to problems such as light intensity reading drift, inaccurate lifetime predictions, and process control failures. For example, even in the absence of light, photodiodes generate current due to thermal excitation, resulting in artificially high light intensity. Furthermore, the absorption coefficient and carrier mobility of semiconductor materials are affected by temperature, causing changes in the photocurrent generated per unit of light power. In other words, increased temperature leads to decreased actual sensitivity, resulting in a smaller output signal at the same light intensity. Therefore, in this embodiment, the UV lamp also includes a temperature detection component disposed inside the lampshade for detecting the ambient temperature. The temperature signal output by the temperature detection component confirms the temperature inside the lampshade, which is also the ambient temperature of the light intensity detection component. Furthermore, the light intensity detection component includes a photosensitive light intensity detection unit and a light-shielding light intensity detection unit. The target wavelength range responded to by the photosensitive light intensity detection unit and the light-shielding light intensity detection unit are the same. That is, the only difference between the photosensitive light intensity detection unit and the light-shielding light intensity detection unit is that the photosensitive light intensity detection unit can adjust the light intensity detection signal output to the outside based on changes in external light intensity, while the light-shielding light intensity detection unit does not adjust the light intensity detection signal output to the outside based on changes in external light intensity. The photosensitive current is confirmed by the photosensitive light intensity detection signal output by the photosensitive light intensity detection unit, and the light-shielding current is confirmed by the light-shielding light intensity detection signal output by the light-shielding light intensity detection unit. Therefore, the light intensity detection signal output by the light intensity detection component is corrected based on the inner temperature of the lampshade, the photosensitive current, and the light-shielding current, thus confirming the light intensity output by the UV lamp bead.

[0064] Optionally, the step of correcting the light intensity detection signal output by the light intensity detection component based on the inner temperature of the lampshade, the photosensitive current, and the light-blocking current specifically includes:

[0065] Based on the difference between the photosensitive current and the light-blocking current, the current difference value is confirmed;

[0066] The temperature difference value is confirmed based on the difference between the inner temperature of the lampshade and the reference temperature.

[0067] Based on the product of the temperature difference and the temperature coefficient, the coefficient of temperature difference variation is determined;

[0068] Based on the sum of the temperature difference change coefficient and the preset constant, the temperature influence coefficient is confirmed;

[0069] The light intensity detection signal output by the light intensity detection component is corrected based on the quotient of the current difference and the temperature influence coefficient.

[0070] Right now, , .

[0071] in, To correct the current, For photocurrent, For photocurrent, Here, 1 represents the temperature influence coefficient, 1 is a preset constant, and T is the inner temperature. As the reference temperature, This is the temperature change coefficient.

[0072] refer to Figure 4 In one embodiment of the present invention, the step of controlling the power adjustment component to gradually increase the driving power output to the UV lamp beads when the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold specifically includes:

[0073] S210: If the light intensity detected by the light intensity detection signal is less than the preset light intensity threshold, confirm the driving power of the power adjustment component;

[0074] S220: When the driving power of the power adjustment component is not greater than the preset driving power threshold, control the power adjustment component to gradually increase the driving power output to the UV lamp beads.

[0075] S230: When the driving power of the power adjustment component is greater than the preset driving power threshold, control the power adjustment component to output driving power at the preset driving power threshold.

[0076] In this embodiment, it is necessary to set an upper limit on the maximum output power that the power adjustment component can output to prevent over-driving from causing a sudden drop in the lifespan or breakage of the UV lamp beads. Therefore, if the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, it is necessary to first confirm the driving power of the power adjustment component. If the driving power of the power adjustment component is not greater than the preset driving power threshold, then the power adjustment component is controlled to gradually increase the driving power output to the UV lamp beads. At the same time, the driving power of the power adjustment component is monitored in real time. If the driving power of the power adjustment component is greater than the preset driving power threshold, the power adjustment component is controlled to output the driving power at the preset driving power threshold to avoid over-driving from causing a sudden drop in the lifespan or breakage of the UV lamp beads.

[0077] Optionally, the UV lamp further includes a notification component disposed on the outside of the lampshade; before the step of controlling the power adjustment component to stop adjusting the driving power when the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the method further includes:

[0078] When the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, and the power adjustment component outputs drive power at the preset drive power threshold, the prompting component is controlled to output a prompting signal.

[0079] In this embodiment, the prompting component can be implemented using a voice prompting component or a visual prompting component. The visual prompting component can be implemented using an LED prompting component. It is understood that if the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, and the power adjustment component outputs driving power at the preset driving power threshold, then the UV lamp's performance is no longer sufficient to output light of the corresponding intensity by changing the driving power. Therefore, the user needs to be reminded to replace it promptly.

[0080] In one embodiment of the present invention, before the step of controlling the power adjustment component to stop adjusting the driving power when the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the method further includes:

[0081] If the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the driving power output by the power output component to the UV lamp bead is determined.

[0082] The remaining lifespan of the UV lamp bead is determined based on the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold.

[0083] Understandably, if the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, and the driving power output by the power output component to the UV lamp bead is less than a preset driving power threshold, then the remaining lifespan of the UV lamp bead can be determined by the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold. The smaller the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold, the shorter the remaining lifespan of the UV lamp bead is considered to be.

[0084] Optionally, the UV lamp further includes a notification component disposed on the outside of the lampshade, and the step of determining the remaining lifespan of the UV lamp bead based on the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold specifically includes:

[0085] If the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold is less than the preset power difference, it is confirmed that the remaining lifespan of the UV lamp bead is less than the preset lifespan, and the prompting component is controlled to output a prompt signal.

[0086] In this embodiment, by setting a prompting component, if the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold is less than the preset power difference, it can be confirmed that the remaining lifespan of the UV lamp bead is less than the preset lifespan, and the prompting component is controlled to output a prompt signal, thereby prompting the user to replace the UV lamp bead in advance.

[0087] The present invention also proposes a control device, which includes a memory, a processor, and a UV light source control program stored in the memory and executable on the processor. The UV light source control program is configured to implement the steps of the UV light source control method as described above. It is worth noting that since the control device of the present invention is based on the above-described UV light source control method, the embodiments of the control device of the present invention include all the technical solutions of all embodiments of the above-described UV light source control method, and the achieved technical effects are completely the same, and will not be repeated here.

[0088] This invention also proposes a UV lamp, comprising a lampshade, UV lamp beads disposed inside the lampshade, a light intensity detection component disposed inside the lampshade for detecting the light intensity output by the UV lamp beads, a power adjustment component connected to the power supply terminal of the UV lamp beads, and a control device as described above. It is worth noting that since the UV lamp of this invention is based on the aforementioned control device, the embodiments of the UV lamp of this invention include all the technical solutions of all embodiments of the aforementioned control device, and the achieved technical effects are completely identical, and will not be repeated here.

[0089] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A method for regulating a UV light source, applied to a UV lamp, characterized in that, The UV lamp includes a lampshade, UV lamp beads disposed inside the lampshade, a light intensity detection component disposed inside the lampshade for detecting the output light intensity of the UV lamp beads, and a power adjustment component connected to the power supply terminal of the UV lamp beads; the UV lamp also includes a temperature detection component disposed inside the lampshade for detecting the ambient temperature; the light intensity detection component includes a photosensitive light intensity detection unit and a light-shielding light intensity detection unit, wherein the target wavelength range responded to by the photosensitive light intensity detection unit and the target wavelength range responded to by the light-shielding light intensity detection unit are consistent; the UV light source control method includes: The intensity of light emitted by the UV lamp bead is confirmed based on the light intensity detection signal output by the light intensity detection component. When the light intensity detected by the light intensity detection signal is less than the preset light intensity threshold, the power adjustment component is controlled to gradually increase the driving power output to the UV lamp beads. If the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the power adjustment component is controlled to stop adjusting the driving power. The step of confirming the light intensity output by the UV lamp bead based on the light intensity detection signal output by the light intensity detection component specifically includes: Based on the temperature detection signal output by the temperature detection component, the inner temperature of the lampshade is confirmed; Based on the photosensitive light intensity detection signal output by the photosensitive light intensity detection unit, the photosensitive current is confirmed; Based on the light intensity detection signal output by the light intensity detection unit, the light-blocking current is confirmed; Based on the inner temperature of the lampshade, the photosensitive current, and the light-blocking current, the light intensity detection signal output by the light intensity detection component is corrected, and the light intensity output by the UV lamp bead is confirmed. The step of correcting the light intensity detection signal output by the light intensity detection component based on the inner temperature of the lampshade, the photosensitive current, and the light-blocking current is as follows: Based on the difference between the photosensitive current and the light-blocking current, the current difference value is confirmed; The temperature difference value is confirmed based on the difference between the inner temperature of the lampshade and the reference temperature. Based on the product of the temperature difference and the temperature coefficient, the coefficient of temperature difference variation is determined; Based on the sum of the temperature difference change coefficient and the preset constant, the temperature influence coefficient is confirmed; The light intensity detection signal output by the light intensity detection component is corrected based on the quotient of the current difference and the temperature influence coefficient.

2. The UV light source control method as described in claim 1, characterized in that, The light intensity detection component includes multiple sets of light intensity detection units, and the target wavelength ranges responded to by the multiple sets of light intensity detection units do not overlap; the step of confirming the light intensity output by the UV lamp bead based on the light intensity detection signal output by the light intensity detection component specifically includes: The target light intensity detection signal is confirmed based on the maximum value corresponding to the multiple light intensity detection signals output by the multiple light intensity detection components. Based on the target light intensity detection signal, the light intensity output by the UV lamp bead is confirmed.

3. The UV light source control method as described in claim 1, characterized in that, The step of controlling the power adjustment component to gradually increase the driving power output to the UV lamp beads when the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold specifically includes: If the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, the driving power of the power adjustment component is confirmed. When the driving power of the power adjustment component is not greater than the preset driving power threshold, the power adjustment component is controlled to gradually increase the driving power output to the UV lamp beads. When the driving power of the power adjustment component is greater than a preset driving power threshold, the power adjustment component is controlled to output driving power at the preset driving power threshold.

4. The UV light source control method as described in claim 3, characterized in that, The UV lamp further includes a prompting component disposed on the outside of the lampshade; before the step of controlling the power adjustment component to stop adjusting the driving power when the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the method further includes: When the light intensity detected by the light intensity detection signal is less than a preset light intensity threshold, and the power adjustment component outputs drive power at the preset drive power threshold, the prompting component is controlled to output a prompting signal.

5. The UV light source control method as described in claim 3, characterized in that, Before the step of controlling the power adjustment component to stop adjusting the driving power when the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the method further includes: If the light intensity detected by the light intensity detection signal is not less than a preset light intensity threshold, the driving power output by the power output component to the UV lamp bead is determined. The remaining lifespan of the UV lamp bead is determined based on the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold.

6. The UV light source control method as described in claim 5, characterized in that, The UV lamp also includes a notification component disposed on the outside of the lamp cover. The step of determining the remaining lifespan of the UV lamp beads based on the difference between the driving power output by the power output component to the UV lamp beads and the preset driving power threshold specifically includes: If the difference between the driving power output by the power output component to the UV lamp bead and the preset driving power threshold is less than the preset power difference, it is confirmed that the remaining lifespan of the UV lamp bead is less than the preset lifespan, and the prompting component is controlled to output a prompt signal.

7. A control device, characterized in that, The control device includes a memory, a processor, and a UV light source control program stored in the memory and executable on the processor, the UV light source control program being configured to implement the steps of the UV light source control method as described in any one of claims 1 to 6.

8. A UV lamp, characterized in that, The UV lamp includes a lampshade, a UV lamp bead disposed inside the lampshade, a light intensity detection component disposed inside the lampshade and used to detect the light intensity output by the UV lamp bead, a power adjustment component connected to the power supply terminal of the UV lamp bead, and a control device as described in claim 7.

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