CN114832129A - Ultraviolet sterilization and disinfection device and control method thereof - Google Patents
Ultraviolet sterilization and disinfection device and control method thereof Download PDFInfo
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000001954 sterilising effect Effects 0.000 claims abstract description 57
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 230000003827 upregulation Effects 0.000 claims abstract description 10
- 230000033228 biological regulation Effects 0.000 claims abstract description 8
- 230000000844 anti-bacterial effect Effects 0.000 claims description 7
- 239000003899 bactericide agent Substances 0.000 claims description 6
- 239000003206 sterilizing agent Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 3
- 230000002070 germicidal effect Effects 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000007872 degassing Methods 0.000 abstract description 5
- 230000000249 desinfective effect Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 18
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- 235000015468 Lycium chinense Nutrition 0.000 description 10
- 235000013399 edible fruits Nutrition 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
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- 229940037467 helicobacter pylori Drugs 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
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- 241000894006 Bacteria Species 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultra-violet radiation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The application discloses an ultraviolet sterilization and disinfection device and a control method thereof, wherein the method comprises the following steps: starting an ultraviolet lamp in the ultraviolet sterilization disinfection device to work at a standard working current; acquiring actual light output power corresponding to the ultraviolet irradiation intensity in the current disinfection device; obtaining an optical power attenuation value by subtracting the actual optical power from the set working power; determining an up-regulation current according to the optical power attenuation value; summing the standard working current and the up-regulation current to obtain a regulation current; and driving the ultraviolet lamp to work by taking the adjusting current as the working current of the ultraviolet lamp. This application determines its luminous power attenuation value through providing the actual luminous power according to the ultraviolet lamp to adjust the operating current of ultraviolet lamp according to luminous power attenuation value, with the actual luminous power of adjustment ultraviolet lamp, make degassing unit all keep invariable luminous intensity at any time, also can keep invariable ability of disinfecting.
Description
Technical Field
The present disclosure relates generally to the field of disinfection device control technologies, and in particular, to an ultraviolet sterilization disinfection device and a control method thereof.
Background
The disinfection device is a tool for drying, sterilizing, disinfecting, preserving heat and dehumidifying articles such as tableware, towels, clothes, hairdressing tools, medical appliances and the like in the modes of ultraviolet rays, far laser rays, high temperature, ozone and the like, and generally has a cabinet box shape, most of the cabinet body is made of stainless steel, and the panel is made of toughened glass or stainless steel.
The service life of the disinfection device is closely related to the service life of the ultraviolet lamp, when the light-emitting intensity of the ultraviolet lamp is attenuated to 0.7 of the standard light-emitting intensity, the sterilization intensity of the ultraviolet lamp cannot meet the requirement, and at the moment, the disinfection device is made useless or the ultraviolet lamp needs to be replaced to maintain the sterilization effect of the disinfection device; because the attenuation of the light intensity of the ultraviolet lamp is gradually changed, namely, in the life cycle of the ultraviolet lamp, the sterilization effect of the ultraviolet lamp is influenced along with the use of the sterilization device.
Disclosure of Invention
In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a disinfection device control system and method.
In a first aspect, the present application provides a control method for an ultraviolet sterilization and disinfection apparatus, comprising the steps of:
starting an ultraviolet lamp in the ultraviolet sterilization disinfection device to work at a standard working current;
acquiring actual light output power corresponding to the ultraviolet irradiation intensity in the current disinfection device;
obtaining an optical power attenuation value by subtracting the actual optical power from the set working power;
determining an up-regulation current according to the optical power attenuation value;
summing the standard working current and the up-regulation current to obtain a regulation current;
and driving the ultraviolet lamp to work by taking the adjusting current as the working current of the ultraviolet lamp.
According to the technical scheme provided by the embodiment of the application, the actual light output power is obtained by testing the light power sensor arranged in the disinfection device.
According to the technical scheme provided by the embodiment of the application, the actual light output power is calculated by the following method:
acquiring the accumulated working time of the ultraviolet lamp;
and determining the actual light output power corresponding to the accumulated working time according to the light power attenuation curve of the ultraviolet lamp.
According to the technical scheme provided by the embodiment of the application, n ultraviolet lamps are designed in groups, n is more than or equal to 2, wherein the (m + 1) th ultraviolet lamp is a backup lamp of the mth ultraviolet lamp; m is more than or equal to 1 and less than or equal to n-1; the light-emitting angles and directions of all ultraviolet lamps in the ultraviolet lamp group are consistent, and the distance is less than or equal to 5 mm; the control method further comprises the following steps:
when the mth ultraviolet lamp is started up by the standard working current, judging that the actual light output power is less than or equal to the service life power of the ultraviolet lamp, and when m is less than or equal to n-1, turning off the mth ultraviolet lamp, and starting the (m + 1) th ultraviolet lamp by the standard working current;
when the mth ultraviolet lamp is started up by the standard working current, the actual light output power is judged to be less than or equal to the service life power of the ultraviolet lamp, and when m is judged to be n, at least 2 ultraviolet lamps in the ultraviolet lamp set are started up by the standard working current.
According to the technical scheme provided by the embodiment of the application, when the actual light-emitting power obtained after all ultraviolet lamps in the ultraviolet lamp set are started by the standard working current is smaller than the standard light-emitting power, the lamp bead replacement reminding is sent.
According to the technical scheme provided by the embodiment of the application, n ultraviolet lamps are designed in groups, n is more than or equal to 2, wherein the (m + 1) th ultraviolet lamp is a backup lamp of the mth ultraviolet lamp; m is more than or equal to 1 and less than or equal to n-1; the light-emitting angles and directions of the ultraviolet lamps in the ultraviolet lamp group are consistent, and the distance is less than or equal to 5 mm; the control method further comprises the following steps:
judging whether the set working power is greater than the standard light-emitting power;
inquiring an actual light-emitting power range with a lower limit value larger than the set working power and closest to the set working power from a power meter; the power meter stores an ultraviolet lamp opening combination and a corresponding light power range;
and starting the ultraviolet lamp corresponding to the inquired light power range to work.
According to the technical scheme provided by the embodiment of the application, the method further comprises the following steps:
acquiring lower limit light-emitting power of an actual light-emitting power range to be inquired;
obtaining the actual sterilization duration by quotient of the set average sterilization dose information per unit area and the lower limit light-emitting power;
and starting the actual sterilization time of the ultraviolet lamp corresponding to the inquired light power range by the standard working current.
According to the technical scheme provided by the embodiment of the application, the set working power is calculated according to the following steps:
acquiring the use type information and the disinfection duration information of the sterilized object;
inquiring average sterilizing agent amount information per unit area corresponding to the usage type information of the sterilized object from a usage sterilizing agent amount database;
determining the average light-emitting dose in unit area according to the average sterilizing dose information in unit area and the distance information between the ultraviolet lamp and the irradiation surface
And obtaining the set working power by quotient of the average light-emitting dose per unit area and the disinfection duration information.
According to the technical scheme provided by the embodiment of the application, the use type information is obtained by inputting through an interaction module by a user or automatically recognized through an article type recognition model.
According to the technical scheme provided by the embodiment of the application, the step of determining the average light-emitting dose in the unit area according to the average sterilizing dose information in the unit area and the distance information between the ultraviolet lamp and the irradiation surface specifically comprises the following steps:
obtaining the average irradiation distance h between the ultraviolet lamp and an irradiation surface;
the average light dose per unit area D is determined according to the following formula:
D＝D sheet +D λ *h；D Sheet As the average bactericidal agent amount per unit area information, D λ Is a distance adjustment coefficient of the average sterilization agent amount per unit area.
According to the technical scheme provided by the embodiment of the application, k ultraviolet lamps are arranged in the ultraviolet sterilization and disinfection device, and the average irradiation distance between each ultraviolet lamp and an irradiation surface is h; determining the average light dose per unit area according to the average bactericidal dose per unit area information and the distance information between the ultraviolet lamp and the irradiation surface specifically comprises the following steps:
obtaining the average irradiation distance h between the ultraviolet lamp and an irradiation surface;
the average light dose per unit area D is determined according to the following formula:
D＝[D sheet /k+D λ *h]；D Sheet As the average bactericidal agent amount per unit area information, D λ Is a distance adjustment coefficient of the average sterilization agent amount per unit area.
In a second aspect, the present application provides an ultraviolet sterilization and disinfection apparatus, comprising:
the cabinet body is provided with a disinfection cavity for placing articles to be disinfected; the disinfection cavity is internally provided with:
the two sides of the shelf are respectively connected with the side wall of the cabinet body in a sliding way through supporting pieces; the storage rack divides the disinfection cavity into a plurality of storage spaces;
the support part is provided with a mounting surface positioned below the commodity shelf; at least one group of ultraviolet lamps are arranged on the mounting surface;
a first preset included angle is formed between the mounting surface and the side wall of the cabinet body, the opening direction of the first preset included angle faces the top of the cabinet body, and the first preset included angle is larger than 0 and smaller than or equal to 90 degrees;
the control module is used for projecting ultraviolet light to the object placing space by the control method;
wherein the mounting position of each group of ultraviolet lamp groups satisfies the following formulas (one) to (five):
w1 ═ L × sin (α) (two)
β>β 3 +β 4 (III)
tanβ 3 S1/H (four)
tanβ 4 Either S-S1/H (five)
Wherein alpha is the first preset included angle; l is the distance from the center of the ultraviolet lamp group to the mounting surface and close to the edge line of the side wall of the cabinet body; s is the width of the disinfection device; h is the height between the ultraviolet lamp group and a shelf below the ultraviolet lamp group; beta is the light-emitting angle of the ultraviolet lamp.
According to the technical scheme provided by the embodiment of the application, the distance h2 between adjacent ultraviolet lamps or ultraviolet lamp groups on the same mounting surface meets the following formula (six):
h 2 l is less than or equal to sin alpha/tan (alpha + beta/2-90) (six).
In the technical scheme of this application, confirm its luminous power attenuation value through providing the actual luminous power according to the ultraviolet lamp to adjust the operating current of ultraviolet lamp according to luminous power attenuation value, with the actual luminous power of adjustment ultraviolet lamp, make degassing unit all keep invariable luminous intensity at any time, also can keep invariable sterilizing ability.
According to the technical scheme that this application embodiment provided, through designing ultraviolet banks, not only can continue degassing unit's life through the mode that adopts reserve ultraviolet lamp, after ultraviolet lamp in the ultraviolet banks all reached life in addition, can keep the bactericidal intensity through the stack use, further improved the life of ultraviolet lamp.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of example 1 of the present application;
FIG. 2 is a schematic diagram of the position of UV lamps in the UV lamp set of FIG. 2;
FIGS. 3-5 show several arrangements of the UV lamps in the UV lamp set of embodiment 2;
FIG. 6 is a schematic configuration diagram of a sterilizing apparatus according to embodiment 5;
FIG. 7 is a view showing the dimensions of the ultraviolet lamp and the sterilizing apparatus in the sterilizing apparatus according to example 5; reference numbers in the figures:
10. a cabinet body; 20. a rack; 21. a support member; 22. a mounting surface; 23. a radiation surface; 11. a disinfection chamber; 30. an ultraviolet lamp.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to fig. 1, the present embodiment provides a control method of an ultraviolet sterilization and disinfection apparatus, including the following steps:
s10, starting an ultraviolet lamp in the ultraviolet sterilization disinfection device to work by standard working current; each ultraviolet lamp has a rated working current, for example, for an ultraviolet lamp with standard light-emitting power of 100 μ W, the rated working current is 50mA, and then the rated working current is the standard working current;
s20, acquiring actual light output power corresponding to the ultraviolet irradiation intensity in the current disinfection device; the actual light output power is optionally obtained by any one of the following methods:
the first method is as follows:
s21, acquiring the accumulated working time of the ultraviolet lamp;
and S22, determining the actual light output power corresponding to the accumulated working time according to the light power attenuation curve of the ultraviolet lamp.
The optical power attenuation curve data is shown in table 1 below, for example, when the accumulated operating time of the current ultraviolet lamp is 200 hours, the actual optical power corresponding to the time is 98 μ W.
TABLE 1 optical power attenuation Curve data
The second method comprises the following steps:
and S23, testing the actual light output power by a light power sensor arranged in the disinfection device.
The model of the optical power sensor is TSL250R-LF for example; it can be installed on the side wall of the disinfection device, and after the disinfection device is internally provided with the sterilized objects, the light transmission path between the ultraviolet lamp and the disinfection device is not shielded by the objects. Light output power Q detected by optical power sensor Detection of And the actual light output power Q of the ultraviolet lamp Fruit of Chinese wolfberry Proportional to the distance h1 between them:
Q fruit of Chinese wolfberry ＝Q Detection of +Q Sheet *h1。Q Sheet Is the attenuation power per unit distance. The control module of the disinfection device obtains the luminous power Q according to the mode Detection of Then the actual light output power Q of the ultraviolet lamp can be obtained through conversion by the formula Fruit of Chinese wolfberry 。
S30, subtracting the actual light output power from the set working power to obtain a light power attenuation value; wherein the setting of the operating power is determined by the control module of the disinfection apparatus in dependence of the setting of the sterilization mode of the current user.
For example, if the user currently selects the default sterilization mode, the operating power is set to be the standard light output power of the ultraviolet lamp of 100 μ W, and at this time, the light power attenuation value is 100 μ W-98 μ W — 2 μ W;
for example, if the user currently selects the power sterilization mode, the set operating power in the mode is 110 μ W, and the optical power attenuation value is 110 μ W-98 μ W — 12 μ W;
for example, the user currently selects a custom sterilization mode, in which the average sterilization dose per unit area of the item selected by the user is 14400 μ W.s, and the unit area in this embodiment refers to 1cm 2 If the sterilization time is set to be 2 minutes, the control module calculates the set working power by the following formula:
the operating power is set to 120 μ W so that the average sterilization dose per unit area can be achieved by setting the operating power to 120 μ W [14400 μ W.s ] ÷ 120s ═ 120 μ W, where the optical power attenuation value is 120 μ W-98 μ W ═ 22 μ W;
in this embodiment, the working power is set to be greater than or equal to the standard light output power.
S40, determining an up-regulation current according to the optical power attenuation value;
taking the above default sterilization mode as an example, the optical power attenuation value is 2 μ W, and the up-regulation current is determined according to the following formula: i is Regulating device ＝λ 1 Q Tilt on λ 2 (Q Sign board -Q Fruit of Chinese wolfberry )，λ 1 Current regulation factor, lambda, being the attenuation value of the optical power 2 Current regulation factor, lambda, for the actual luminous power 1 And λ 2 All units of (a) are mA/μ W such as λ 1 ＝0.05，λ 2 When the ratio is 0.01, then I Regulating device ＝λ 1 Q Tilt on λ 2 Q Fruit of Chinese wolfberry ＝0.05*(100-98)+0.01*(100-98)＝0.12mA。
Taking the above default sterilization mode as an example, the optical power attenuation value is 12 μ W, and the up-regulated current is determined according to the following formula: I.C. A Regulating device ＝λ 1 Q Tilt on λ 2 (Q Sign -Q Fruit of Chinese wolfberry )，λ 1 Current regulation factor, lambda, being the attenuation value of the optical power 2 For adjusting the current of the actual light power, e.g. lambda 1 ＝0.05，λ 2 When equal to 0.01, then
I Regulating device ＝λ 1 Q Tilt on λ 2 Q Fruit of Chinese wolfberry ＝0.05*(120-98)+0.01*(100-98)＝0.62mA。
Using the above default killerFor example, the optical power attenuation value is 22 μ W, and the up-regulation current is determined according to the following formula: i is Regulating device ＝λ 1 Q Tilt on λ 2 (Q Sign board -Q Fruit of Chinese wolfberry )，λ 1 Current regulation factor, lambda, being the attenuation value of the optical power 2 For adjusting the current of the actual light power, e.g. lambda 1 ＝0.05，λ 2 When equal to 0.01, then I Regulating device ＝λ 1 Q Tilt on λ 2 Q Fruit of Chinese wolfberry ＝0.05*(120-98)+0.01*(100-98)＝1.12mA。
S50, summing the standard working current and the up-regulation current to obtain a regulation current;
taking the above-mentioned default sterilization mode as an example, the current I is adjusted Regulating device ＝50+0.12＝50.12mA。
And S60, driving the ultraviolet lamp to work by taking the adjusting current as the working current of the ultraviolet lamp.
Every ultraviolet lamp has safe operating current, and when its operating current exceeded safe operating current, the ultraviolet lamp had the risk of burning out, consequently, under the technical scheme of this application, should guarantee that the regulating current is less than safe operating current. For example, for an ultraviolet lamp with a standard operating current of 50mA, if the safe operating current is 60mA, the regulated current should be less than 60 mA. In this embodiment, in order to ensure absolute safety of the operating circuit of the UV lamp, an upper limit I of the regulated current is set Regulating limit Less than the safe operating current, e.g. I Regulating limit ＝52mA。
When judging the adjustment current I Regulating device ≥I Regulating limit And determining the set working power Q Is provided with ＞Q Sign board To adjust the upper limit value I of the current Regulating limit And driving the ultraviolet lamp to work.
When judging the adjustment current I Regulating device ≥I Regulating limit Then, the working power Q is determined and set Is provided with ＝Q Sign board And when the lamp is used, the replacement prompt of the ultraviolet lamp is given.
In the technical scheme of this application, when the actual luminous power of ultraviolet lamp is less than and sets for operating power, through the drive current of adjustment ultraviolet lamp to reach and set for operating power, and then make the luminous intensity of ultraviolet lamp satisfy and set for the requirement. Especially, after the ultraviolet lamp is used for a period of time, the light-emitting intensity of the ultraviolet lamp can be kept under the intensity of standard light-emitting power through the scheme, and the sterilization intensity of the ultraviolet lamp is also ensured. When setting for operating power and being greater than standard luminous power, this scheme has still realized the sterilization of superstrength, perhaps shortens the sterilization time through improving sterilization intensity, and then realizes disinfecting in the high efficiency that satisfies under the average bactericidal dose of unit area, but the degassing unit operation control that this application provided designs, intelligent, provides very big convenience for the user.
Example 2
In the embodiment, on the basis of the embodiment 1, n ultraviolet lamps are designed in groups, n is more than or equal to 2, wherein the m +1 ultraviolet lamp is a backup lamp of the mth ultraviolet lamp, and m is more than or equal to 1 and less than or equal to n-1; the light-emitting angles and directions of all ultraviolet lamps in the ultraviolet lamp group are consistent, and the distance h2 is less than or equal to 5 mm;
taking n equal to 2 as an example, as shown in fig. 2, the light-emitting angle β of the 1 st ultraviolet lamp 1 120 degrees, the light-emitting angle beta of the 1 st ultraviolet lamp 2 120 degrees, and the light-emitting direction of two central outgoing light is unanimous, all is perpendicular to the installation face.
As shown in fig. 3-5, the n ultraviolet lamps may be arranged in an array, or arranged around the 1 st ultraviolet lamp as a center, or distributed in a triangle; it is understood by those skilled in the art that the above conditions are satisfied within the scope of the present application.
In this embodiment, the control method further includes the steps of:
when the mth ultraviolet lamp is started up by the standard working current, judging that the actual light output power is less than or equal to the service life power of the ultraviolet lamp, and when m is less than or equal to n-1, turning off the mth ultraviolet lamp, and starting the (m + 1) th ultraviolet lamp by the standard working current;
when the mth ultraviolet lamp is started up by the standard working current, the actual light output power is judged to be less than or equal to the service life power of the ultraviolet lamp, and when m is judged to be n, at least 2 ultraviolet lamps in the ultraviolet lamp set are started up by the standard working current.
Life power Q of ultraviolet lamp Longevity ＝0.7*Q Sign ，Q Sign board The standard light output power of the ultraviolet lamp. This embodiment is through setting up ultraviolet banks, and the ultraviolet lamp in the ultraviolet banks is mutual as the relation of backup in proper order, and the life-span through an ultraviolet lamp reaches, launches the mode rather than the reserve ultraviolet lamp that corresponds, has prolonged the time of changing the ultraviolet lamp, has prolonged degassing unit's life.
In the technical scheme of the embodiment, after all the ultraviolet lamps in one ultraviolet lamp group reach the service life, the replacement time of the ultraviolet lamps of the disinfection device can be further prolonged by overlapping the scrapped ultraviolet lamps, and the service life of the disinfection device is prolonged. The 'scrapped' ultraviolet lamp is started at standard working current, and the actual light-emitting power Q of the ultraviolet lamp Fruit of Chinese wolfberry ≤Q Longevity . The starting number of the 'scrapped' ultraviolet lamps is based on the condition that the superposed actual light-emitting power meets the set working power after the 'scrapped' ultraviolet lamps are started;
for example, there are 3 ultraviolet lamps in the current ultraviolet lamp set, wherein the actual light output power of the 1 st ultraviolet lamp is 60 μ W when the ultraviolet lamp is started with the standard operating current, the actual light output power of the 2 nd ultraviolet lamp is 60 μ W when the ultraviolet lamp is started with the standard operating current, and the actual light output power of the 3 rd ultraviolet lamp is 50 μ W when the ultraviolet lamp is started with the standard operating current; if the current set working power is 100 muW, starting the 1 st ultraviolet lamp and the 2 nd ultraviolet lamp to work simultaneously by using standard working current; if the current set working power is 150 μ W, the 1 st to 3 rd UV lamps are simultaneously started with the standard working current.
And when the actual light-emitting power obtained after all ultraviolet lamps in the ultraviolet lamp set are started by the standard working current is less than the standard light-emitting power, a lamp bead replacement prompt is sent. When the actual light-emitting power acquired by all ultraviolet lamps in the ultraviolet lamp set is smaller than the standard light-emitting power, the actual light-emitting power can reach the standard light-emitting power to continue to be used for a period of time by adjusting the working current in the embodiment 1, and the user can replace the ultraviolet lamps in time by reminding.
Example 3
In this embodiment, on the basis of embodiment 2, the control method further includes the following steps:
s71, judging that the set working power is greater than the standard light-emitting power;
s72, inquiring an actual light-emitting power range with a lower limit value larger than the set working power and closest to the set working power from a power meter; the power meter stores an ultraviolet lamp opening combination and a corresponding light power range;
taking 3 ultraviolet lamp sets with standard light output power of 100 μ W as an example, the power meter is as shown in table 2 below, and the power meter is updated once after each sterilization operation is completed.
TABLE 2 Power Meter
And S73, starting the ultraviolet lamp corresponding to the inquired light power range to work. For example, when the working power is set to be 120 μ W, the No. 3 ultraviolet lamp is started to work; when the working power is set to 200 muW, the No. 1 and No. 3 work are started simultaneously.
Specifically, in this embodiment, step S73 may be specifically implemented by the following manner a or b, where manner a includes the following steps:
s73-1, acquiring and inquiring the lower limit light-emitting power of the actual light-emitting power range; when the working power is set to be 200 muW, the inquired actual light-emitting power range is 160 muW-232 muW, and the lower limit light-emitting power of the light-emitting power range is 160 muW.
S73-2, obtaining the actual sterilization duration by quotient of the set average sterilization dose information per unit area and the lower limit light output power;
for example, a set unit area (per cm) 2 ) The average sterilization dose information is 30000 mu W.s, and the actual sterilization time length is [30000 mu W.s ] 2 ]÷[160μW]187.5 s-3.125 min.
And S73-3, starting the actual sterilization time length of the ultraviolet lamp corresponding to the inquired light power range by the standard working current.
In other embodiments, step S73 may also specifically include the following step:
and S73-4, acquiring the number f of the opened ultraviolet lamps corresponding to the inquired actual light output power range. For example, the number f of the ultraviolet lamps which are turned on is 2 corresponding to the queried actual light power range of 160 μ W-232 μ W.
S73-5, acquiring and inquiring the lower limit light-emitting power of the actual light-emitting power range; when the working power is set to be 200, the actual optical power range of the query is 160 muW-232 muW.
S73-5, calculating a difference between the set working power and the obtained lower limit light-emitting power to obtain a difference working power, for example, the difference working power is 200 μ W-160 μ W ═ 40 μ W.
And S73-6, obtaining the unit differential operating power by dividing the differential operating power by the operating number of the ultraviolet lamps, wherein the unit differential operating power is 40 mu W/2-20 mu W, for example.
And S73-7, summing the actual light-emitting power of each ultraviolet lamp and the unit difference operating power to obtain the set operating power of each ultraviolet lamp, wherein, for example, the set operating power of the ultraviolet lamp No. 1 is 60 μ W +20 μ W-80 μ W, and the set operating power of the ultraviolet lamp No. 3 is 100 μ W +20 μ W-120 μ W.
And S73-8, calculating the adjusting current according to the steps of the embodiment 1 by each ultraviolet lamp, and driving to work according to the adjusting current.
In this embodiment, by establishing the power meter, the combination of the ultraviolet lamps which are turned on and meet the set working power requirement can be quickly inquired and determined, and the ultrahigh power requirement exceeding the standard light output power can be met according to the mode a or the mode b, so that the requirement of stronger sterilization intensity can be met to meet the requirement of quick and even quick sterilization.
Example 4
On the basis of the foregoing embodiment, the set operating power is calculated according to the following steps:
s81, acquiring the use type information and the disinfection duration information of the sterilized article; the use type information can be obtained by receiving input information of a user through a human-computer interaction module of the sterilization and disinfection device, and the use type information can be underpants, tableware, a feeding bottle, a chopping board, a kitchen knife and the like. The killing time information may be the default killing time of the control module, for example, 5min, or the user-defined killing time input by the user through the human-computer interaction module, for example, 2 min.
S82, inquiring the average sterilizing agent amount information of unit area corresponding to the usage type information of the sterilized article from the usage sterilizing agent amount database;
the bactericidal agent amount database for use is shown in, for example, table 3 below:
TABLE 3 Bactericidal dose database for use
Articles with different purposes have different required average sterilizing doses per unit area due to different attached fungi, for example, the underwear-candida albicans is more, and the sterilizing doses are set according to the fungal doses; for example, the number of the helicobacter pylori in tableware is large, and the dose for killing the helicobacter pylori is set; such as a baby bottle, and the like, relatively paying attention to escherichia coli or staphylococcus aureus, the setting is made in such a dose that both escherichia coli and staphylococcus aureus can be killed.
In other embodiments, the bacteria may be classified according to their type, each having a corresponding average bactericidal dose per unit area, e.g., E.coli-99.99% kill rate, per cm 2 The bactericidal dose is at least 14400 uW.s.
S83, determining the average light-emitting dose in unit area according to the average sterilizing dose information in unit area and the distance information between the ultraviolet lamp and the irradiation surface;
when only one ultraviolet lamp described in embodiment 1 or one ultraviolet lamp group described in embodiment 2 is provided on one irradiation surface, step S83 specifically includes the following steps:
s83-1, obtaining the average irradiation distance h between the ultraviolet lamp and the irradiation surface; as shown in fig. 6, the irradiation surface 23 refers to an irradiated plane of the shelf 20 for placing the sterilized articles, the ultraviolet lamps are fixed in position, the irradiation surface is divided into a plurality of unit irradiation areas, and the average irradiation distance h between the ultraviolet lamps and the irradiation surface refers to the average linear distance from the centers of the ultraviolet lamps to each unit irradiation area; for example, the distances from the center of the ultraviolet lamp to the center point of 100 units of irradiation area are respectively h1 ', h 2', h3 ', h 4', h5 '. h 100', and then the average irradiation distance h between the ultraviolet lamp and the irradiation surface is calculated according to the following formula:
h＝(h1’+h2’+h3’+h4’+h5’+.....+h100)’/100。
s83-2, determining the average light dose D per unit area according to the following formula:
D＝D sheet +D λ *h；D Sheet As the average sterilization dose information per unit area, taking the irradiation surface divided into 100 parts of unit irradiation area as an example, D Sheet The average value of the irradiation dose received by the 100 parts of irradiation areas; d λ Taking a determined light transmission direction as an example, the distance adjusting coefficient of the average sterilization dose per unit area is the attenuation value of the irradiation dose after the light advances for a unit distance (1cm) when no obstacle exists in the light emergent direction. E.g. D Sheet 20000 μ W.s, D λ Is [500 mu W.s]Per cm; assuming that the average irradiation distance h between the ultraviolet lamp and the irradiation surface is 10cm, the average light-emitting dose D per unit area is calculated as follows:
D＝20000μW.s+10cm*[500μW.s]/cm＝25000μW.s。
and S84, obtaining the set working power by quoting the average light-emitting dose per unit area and the disinfection duration information.
For example, if the killing duration information is 3 minutes, the set operating power value [25000 μ W.s ] ÷ 180s is calculated to be approximately equal to 139uW, that is, the set operating power value 139uW is obtained.
When one irradiation surface is provided with only k ultraviolet lamps described in embodiment 1 or k ultraviolet lamp groups described in embodiment 2, the average irradiation distances of the k ultraviolet lamps and the irradiation surface are equal and are all h, and the average irradiation distances of the k ultraviolet lamp groups and the irradiation surface are equal and are all h, step S83 specifically includes the following steps:
s83-3, determining the average light-emitting dose in unit area according to the average sterilizing dose information in unit area and the distance information between the ultraviolet lamp and the irradiation surface specifically comprises the following steps:
s83-4, obtaining the average irradiation distance h between the ultraviolet lamp and the irradiation surface; the step is consistent with the calculation mode of the step S83-1, when the single ultraviolet lamps are arranged in groups, the average irradiation distance h between the group of ultraviolet lamps and the irradiation surface is equal to the average irradiation distance h between the 1 st ultraviolet lamp in the ultraviolet lamp group and the irradiation surface.
S83-5, determining the average light dose D per unit area according to the following formula:
D＝[D sheet /k+Q λ *h]；D Sheet As the average bactericidal agent amount per unit area information, D λ Is a distance adjustment coefficient of the average sterilization agent amount per unit area.
E.g. D Sheet 60000 μ W.s, D λ Is [500 mu W.s]When k is 3, assuming that the average irradiation distance h between the ultraviolet lamp and the irradiation surface is 10cm, the average light dose per unit area D is 60000 μ W.s/3+10cm [500 μ W.s ]]/cm＝25000μW.s。
And S84, obtaining the set working power by quoting the average light-emitting dose per unit area and the disinfection duration information.
For example, if the killing duration information is 4 minutes, the calculated set operating power [25000 μ W.s ]/240s is approximately equal to 104 μ W, and the set operating power value is 104 μ W.
In some embodiments of the present application, the usage type information may also be obtained by automatic identification of an article type identification model, for example, by providing an image acquisition device inside or outside the disinfection device for acquiring an article image; the image acquisition device is a camera;
the object type recognition model can be a recognition model obtained by training a convolutional neural network model, for example, in the training process of the model, firstly, a plurality of pieces of picture information containing objects with various purposes are obtained, the purpose names of the objects are marked on the picture information, the marked pictures are input into the recognition model for training, and the trained model can recognize the material of the objects after obtaining the images acquired by the image acquisition device;
the purpose of the article is very various, and the technical scheme of the application provides an intelligent parameter setting scheme for the user, thereby further bringing convenience to the user.
Example 5
As shown in fig. 6, the present embodiment provides an ultraviolet sterilization and disinfection apparatus, including:
the cabinet body 10 is provided with a disinfection cavity 11 for placing articles to be disinfected; the disinfection cavity 11 is internally provided with:
the shelf 20 comprises a plurality of layers, wherein two sides of the shelf 20 are respectively connected with the side wall of the cabinet 10 in a sliding manner through supporting pieces 21; the shelf 20 divides the sterilizing chamber 11 into a plurality of storage spaces;
the support 21 has a mounting surface 22 located below the shelf 20; at least one group of ultraviolet lamps 30 are arranged on the mounting surface 22;
a first preset included angle is formed between the mounting surface 22 and the side wall of the cabinet body 10, the opening direction of the first preset included angle faces the top of the cabinet body, and the first preset included angle is greater than 0 and smaller than or equal to 90 degrees;
a control module for projecting ultraviolet light to the object space according to the control method of embodiments 1-4;
wherein the mounting position of each group of ultraviolet lamp groups satisfies the following formulas (one) to (five):
w1 ═ L × sin (α) (two)
β>β 3 +β 4 (III)
tanβ 3 S1/H (four)
tanβ 4 Either S-S1/H (five)
As shown in fig. 7, α is the first preset included angle; l is the distance from the center of the ultraviolet lamp group to the mounting surface and close to the edge line of the side wall of the cabinet body; s is the width of the disinfection device; h is the height between the ultraviolet lamp group and a shelf below the ultraviolet lamp group; beta is the light-emitting angle of the ultraviolet lamp.
According to the technical scheme provided by the embodiment of the application, the distance h3 between adjacent ultraviolet lamps on the same mounting surface meets the following formula (six): when the ultraviolet lamps are arranged in groups, the distance between adjacent ultraviolet lamp groups on the same mounting surface satisfies the following formula (six).
h 3 L ≦ sin α/tan (α + β/2-90) (six)
In this embodiment, the space size design of the disinfection apparatus and the installation position of the ultraviolet lamp are organically combined, so that the ultraviolet lamp can uniformly project ultraviolet light to the irradiation surface of the rack in an object placing space, and the ultraviolet lamp is organically combined with the technical solutions of embodiments 1 to 4, so that the ultraviolet light on the irradiation surface of the rack can be accurately controlled, and intelligently controlled as required.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A control method of an ultraviolet sterilization and disinfection device is characterized by comprising the following steps:
starting an ultraviolet lamp in the ultraviolet sterilization disinfection device to work at a standard working current;
acquiring actual light output power corresponding to the ultraviolet irradiation intensity in the current disinfection device;
obtaining an optical power attenuation value by subtracting the actual optical power from the set working power;
determining an up-regulation current according to the optical power attenuation value;
summing the standard working current and the up-regulation current to obtain a regulation current;
and driving the ultraviolet lamp to work by taking the adjusting current as the working current of the ultraviolet lamp.
2. The method for controlling an ultraviolet sterilization and disinfection apparatus according to claim 1, wherein the actual light output power is obtained by testing a light power sensor disposed in the disinfection apparatus, or the actual light output power is obtained by calculating according to the following method:
acquiring the accumulated working time of the ultraviolet lamp;
and determining the actual light output power corresponding to the accumulated working time according to the light power attenuation curve of the ultraviolet lamp.
3. The control method of the ultraviolet sterilization and disinfection apparatus according to claim 1 or 2, wherein n ultraviolet lamps are designed in groups, n is greater than or equal to 2, wherein the m +1 ultraviolet lamp is a backup lamp of the mth ultraviolet lamp; m is more than or equal to 1 and less than or equal to n-1; the light-emitting angles and directions of all ultraviolet lamps in the ultraviolet lamp group are consistent, and the distance is less than or equal to 5 mm; the control method further comprises the following steps:
when the mth ultraviolet lamp is started up by the standard working current, judging that the actual light output power is less than or equal to the service life power of the ultraviolet lamp, and when m is less than or equal to n-1, turning off the mth ultraviolet lamp, and starting the (m + 1) th ultraviolet lamp by the standard working current;
when the mth ultraviolet lamp is started up at the standard working current, judging that the actual light output power is less than or equal to the service life power of the ultraviolet lamp, and when m is judged to be n, starting at least 2 ultraviolet lamps in the ultraviolet lamp group at the standard working current;
and when the actual light-emitting power obtained after all ultraviolet lamps in the ultraviolet lamp set are started by the standard working current is less than the standard light-emitting power, a lamp bead replacement prompt is sent.
4. The control method of the ultraviolet sterilization and disinfection apparatus according to claim 1 or 2, wherein n ultraviolet lamps are designed in groups, n is greater than or equal to 2, wherein the m +1 ultraviolet lamp is a backup lamp of the mth ultraviolet lamp; m is more than or equal to 1 and less than or equal to n-1; the light-emitting angles and directions of the ultraviolet lamps in the ultraviolet lamp group are consistent, and the distance is less than or equal to 5 mm; the control method further comprises the following steps:
judging whether the set working power is greater than the standard light-emitting power;
inquiring an actual light-emitting power range with a lower limit value larger than the set working power and closest to the set working power from a power meter; the power meter stores an ultraviolet lamp opening combination and a corresponding light power range;
and starting the ultraviolet lamp corresponding to the inquired light power range to work.
5. The control method of the ultraviolet sterilization and disinfection apparatus according to claim 4, further comprising the steps of:
acquiring lower limit light-emitting power of an actual light-emitting power range to be inquired;
obtaining the actual sterilization duration by quotient of the set average sterilization dose information per unit area and the lower limit light-emitting power;
and starting the actual sterilization time of the ultraviolet lamp corresponding to the inquired light power range by the standard working current.
6. The control method of the ultraviolet sterilization and disinfection apparatus according to claim 1 or 2, wherein said set operating power is calculated according to the following steps:
acquiring use type information and disinfection duration information of a sterilized article; the use type information is obtained by the input of a user through an interactive module or the automatic identification of an article type identification model
Inquiring average sterilizing agent amount information per unit area corresponding to the usage type information of the sterilized object from a usage sterilizing agent amount database;
determining the average light-emitting dose in unit area according to the average sterilizing dose information in unit area and the distance information between the ultraviolet lamp and the irradiation surface;
and obtaining the set working power by quotient of the average light-emitting dose per unit area and the disinfection duration information.
7. The method of claim 6, wherein the determining the average light dose per unit area based on the average germicidal dose per unit area information and the distance information between the ultraviolet lamp and the irradiation surface comprises:
obtaining the average irradiation distance h between the ultraviolet lamp and an irradiation surface;
the average light dose per unit area D is determined according to the following formula:
D＝D sheet +D λ *h；D Sheet As the average bactericidal agent amount per unit area information, D λ Is a distance adjustment coefficient of the average sterilization agent amount per unit area.
8. The control method of an ultraviolet sterilization and disinfection apparatus according to claim 6, wherein k ultraviolet lamps are provided in the ultraviolet sterilization and disinfection apparatus, and the average irradiation distance between each ultraviolet lamp and the irradiation surface is h; determining the average light dose per unit area according to the average bactericidal dose per unit area information and the distance information between the ultraviolet lamp and the irradiation surface specifically comprises the following steps:
obtaining the average irradiation distance h between the ultraviolet lamp and an irradiation surface;
the average light dose per unit area D is determined according to the following formula:
D＝[D sheet /k+D λ *h]；D Sheet As the average bactericidal agent amount per unit area information, D λ Is a distance adjustment coefficient of the average sterilization agent amount per unit area.
9. An ultraviolet sterilization and disinfection apparatus, comprising:
the cabinet body is provided with a disinfection cavity for placing articles to be disinfected; the disinfection cavity is internally provided with:
the two sides of the shelf are respectively connected with the side wall of the cabinet body in a sliding way through supporting pieces; the storage rack divides the disinfection cavity into a plurality of storage spaces;
the support part is provided with a mounting surface positioned below the commodity shelf; at least one group of ultraviolet lamps are arranged on the mounting surface;
a first preset included angle is formed between the mounting surface and the side wall of the cabinet body, the opening direction of the first preset included angle faces the top of the cabinet body, and the first preset included angle is larger than 0 and smaller than or equal to 90 degrees;
a control module for projecting ultraviolet light to the storage space according to the control method of any one of claims 1 to 8;
wherein the mounting position of each group of ultraviolet lamp groups satisfies the following formulas (one) to (five):
w1 ═ L × sin (α) (two)
β>β 3 +β 4 (III)
tanβ 3 S1/H (four)
tanβ 4 Either S-S1/H (five)
Wherein alpha is the first preset included angle; l is the distance from the center of the ultraviolet lamp group to the mounting surface and close to the edge line of the side wall of the cabinet body; s is the width of the disinfection device; h is the height between the ultraviolet lamp group and a shelf below the ultraviolet lamp group; beta is the light-emitting angle of the ultraviolet lamp.
10. The ultraviolet sterilization and disinfection apparatus of claim 9,
distance h between adjacent UV lamps or groups of UV lamps on the same mounting surface 3 Satisfies the following formula (six):
h 3 l is less than or equal to sin alpha/tan (alpha + beta/2-90) (six).
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