CN114235718A - Multispectral-based disinfection effect detection method, disinfection control method and equipment - Google Patents
Multispectral-based disinfection effect detection method, disinfection control method and equipment Download PDFInfo
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- 238000007689 inspection Methods 0.000 claims abstract description 33
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- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
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Abstract
The invention provides a multispectral-based disinfection effect detection method, a disinfection control method and equipment, wherein the disinfection control method comprises the following steps: step 1, detecting whether an alcohol detector is placed in alcohol detector disinfection equipment or not, if the alcohol detector is placed in the alcohol detector disinfection equipment, starting a disinfection light source assembly in a disinfection cavity, disinfecting a blowing end of the alcohol detector to be disinfected, and starting a disinfection cycle to time; step 2, judging whether the disinfection period timing reaches a preset disinfection duration T, if so, closing a disinfection light source assembly, driving a laser excitation light source assembly to irradiate an air blowing end of the alcohol detector to be disinfected, and starting disinfection effect detection period timing; step 3, in the disinfection effect detection period, starting a multispectral detection assembly, and collecting multispectral images of the to-be-disinfected area of the wine detector under the irradiation of different fluorescence excitation light sources; and detecting the disinfection effect of each area to be disinfected of the wine inspection instrument based on the obtained multispectral images.
Description
Technical Field
The invention relates to the technical field of alcohol detection, in particular to a multispectral-based disinfection effect detection method, a disinfection control method and equipment.
Background
In recent years, vehicles on roads are rapidly increased, harm caused by drunk driving is also obvious, and although the rapid troubleshooting alcohol detector is very suitable for traffic police road troubleshooting, a plurality of tested persons of the equipment are used together, so that serious sanitation potential safety hazards are easily caused, and cross infection of germs can be caused.
With the improvement of living standards, people pay more and more attention to disease prevention and personal hygiene, and therefore, equipment capable of regularly disinfecting a rapid alcohol detector is urgently needed.
However, the existing alcohol detector disinfection device cannot confirm what the disinfection effect is; although the chinese patent with application No. 201811221772.2 discloses a system and a method for detecting ultraviolet disinfection effect, the detection method detects whether the ultraviolet disinfection effect reaches the expected target by determining whether the ultraviolet intensity parameter reaches the preset ultraviolet intensity value in real time, which belongs to an indirect detection method, and it cannot be directly confirmed whether bacteria or virus residue exists in the area to be disinfected of the alcohol detector.
In addition, most disinfection equipment adopts a timing disinfection mode, so that the disinfection time is long, the power consumption is high, and local automatic disinfection cannot be performed.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a multispectral-based disinfection effect detection method, a disinfection control method and equipment.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a multispectral-based disinfection effect detection method, which comprises the following steps: acquiring a multispectral image, calculating a light spot characteristic value ES based on the multispectral image, calculating a disinfection effect characteristic value delta according to the light spot characteristic value ES, and detecting the disinfection effect of a region to be disinfected of a corresponding wine detector through the disinfection effect characteristic value delta:
extracting a multispectral image collected by a certain multispectral camera, and establishing a to-be-detected model corresponding to a to-be-disinfected area of the wine inspection instrument by taking the width of the multispectral image as an X axis, the height of the multispectral image as a Y axis and the length corresponding to the fluorescence brightness of the multispectral image as a Z axis;
determining minimum unit grids of a Z axis, wherein one minimum unit grid corresponds to a length interval corresponding to a fluorescence brightness scale interval; segmenting a multispectral image layer corresponding to each minimum unit cell on the Z axis, and obtaining the total number N of the multispectral image layers according to the ratio between the maximum fluorescence brightness and the fluorescence brightness scale interval;
determining a fluorescence brightness mean value corresponding to each minimum cell in the Z axis, and obtaining the outline of each microorganism light spot in the corresponding multispectral image layer based on the fluorescence brightness mean value; acquiring the total number M of the microbial light spots in the multispectral image layer according to the contour of the microbial light spots;
determining the minimum cell area of the XY axes, and calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, wherein i is 1 to N, N represents the total number of multispectral image layers, j is 1 to M, and M represents the total number of microbial light spots;
calculating a characteristic value factor E _ j of each microbial light spot, wherein the calculation formula is as follows:
wherein Sxy \u1jDenotes the 1 stAreas of jth microorganism light spots in the multispectral image layer in the XY direction in sequence, Sxy _ Nj represents the areas of jth microorganism light spots in the Nth multispectral image layer in the XY direction, and ZNjThe maximum length (Z) corresponding to the maximum fluorescence brightness of the microbial light spotNj-Z(N-1)j) Representing a length interval corresponding to a fluorescence brightness scale interval;
summing the characteristic value factors E _ j of all the microbial light spots to obtain a light spot characteristic value ES, wherein the calculation formula is as follows:
ES＝E_1+E_2+…+E_M
wherein E _1 represents the characteristic value factor of the first microorganism light spot, and so on, and E _ M represents the characteristic value factor of the Mth microorganism light spot;
calculating a disinfection effect characteristic value delta according to the light spot characteristic value ES, wherein the calculation formula is as follows:
wherein X represents the width maximum value of the multispectral image, Y represents the height maximum value of the multispectral image, and Z represents the maximum length corresponding to the fluorescence brightness maximum value of the multispectral image;
judging whether the characteristic value delta of the disinfection effect is less than or equal to a preset value delta0If so, judging that the corresponding area to be disinfected of the wine inspection instrument is qualified, otherwise judging that the corresponding area to be disinfected of the wine inspection instrument is unqualified.
The invention provides a multispectral-based alcohol detector disinfection control method, which comprises the following steps:
step 0, configuring a preset disinfection time T;
after the blowing end of the alcohol detector to be disinfected is irradiated by a 355nm fluorescence excitation light source, bacteria on the blowing end of the alcohol detector to be disinfected emit fluorescence; after the air blowing end of the alcohol detector to be disinfected is irradiated by a fluorescence excitation light source of 532nm, the virus on the air blowing end of the alcohol detector to be disinfected emits fluorescence;
step 401, extracting a multispectral image collected by a certain multispectral camera, and establishing a to-be-detected model corresponding to a to-be-disinfected area of a wine inspection instrument by taking the width of the multispectral image as an X axis, the height of the multispectral image as a Y axis and the length corresponding to the fluorescence brightness of the multispectral image as a Z axis;
step 402, determining minimum cells of a Z axis, wherein one minimum cell corresponds to a length interval corresponding to a fluorescence brightness scale interval;
segmenting a multispectral image layer corresponding to each minimum unit cell on the Z axis, and obtaining the total number N of the multispectral image layers according to the ratio between the maximum fluorescence brightness and the fluorescence brightness scale interval;
step 403, determining a fluorescence brightness mean value corresponding to each minimum cell in the Z-axis, and obtaining a profile of each microorganism spot in the corresponding multispectral image layer based on the fluorescence brightness mean value;
acquiring the total number M of the microbial light spots in the multispectral image layer according to the contour of the microbial light spots;
determining the minimum cell area of the XY axes, and calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, wherein i is 1 to N, N represents the total number of multispectral image layers, j is 1 to M, and M represents the total number of microbial light spots;
step 404, calculating a characteristic value factor E _ j of each microorganism light spot, wherein the calculation formula is as follows:
wherein Sxy \u1jRepresenting the area of the jth microorganism light spot in the 1 st multispectral image layer in the XY direction, and so on, Sxy _ Nj representing the area of the jth microorganism light spot in the Nth multispectral image layer in the XY direction, ZNjThe maximum length (Z) corresponding to the maximum fluorescence brightness of the microbial light spotNj-Z(N-1)j) Representing a length interval corresponding to a fluorescence brightness scale interval;
step 405, summing all the characteristic value factors E _ j of the microbial light spots to obtain a light spot characteristic value ES, wherein the calculation formula is as follows:
ES＝E_1+E_2+…+E_M
wherein E _1 represents the characteristic value factor of the first microorganism light spot, and so on, and E _ M represents the characteristic value factor of the Mth microorganism light spot;
step 406, calculating a disinfection effect characteristic value delta according to the spot characteristic value ES, wherein the calculation formula is as follows:
wherein X represents the width maximum value of the multispectral image, Y represents the height maximum value of the multispectral image, and Z represents the maximum length corresponding to the fluorescence brightness maximum value of the multispectral image;
step 407, judging whether the disinfection effect characteristic value delta is less than or equal to a preset value delta0If so, judging that the disinfection of the corresponding wine detection instrument to-be-disinfected area is qualified, otherwise judging that the disinfection of the corresponding wine detection instrument to-be-disinfected area is unqualified, and marking the wine detection instrument to-be-disinfected area;
judging whether the areas to be disinfected of the wine detection instruments corresponding to each multispectral camera are disinfected qualified, if so, judging that the disinfection of the alcohol detection instruments to be disinfected is completed, otherwise, starting the disinfection matrix corresponding to the marked areas to be disinfected of the wine detection instruments again, and starting the timing of a secondary disinfection period;
and (5) repeating the steps 2 to 5 until the area to be disinfected of each wine inspection instrument is disinfected to be qualified.
The invention provides multispectral-based alcohol detector disinfection equipment, which comprises a detection cavity and a disinfection cavity, wherein the detection cavity is positioned at a disinfection inlet, the disinfection cavity is positioned below the detection cavity, and the detection cavity is provided with a channel for allowing an air blowing end of an alcohol detector to be disinfected to enter the disinfection cavity; an insertion identification circuit board is arranged in the detection cavity, and a disinfection light source component, a laser excitation light source component and a multispectral detection component are arranged in the disinfection cavity;
the disinfection light source assembly comprises a disinfection matrix I, a disinfection matrix II, a disinfection matrix III and a disinfection matrix IV, wherein the disinfection matrix I, the disinfection matrix II, the disinfection matrix III and the disinfection matrix IV are arranged on the inner wall of the disinfection cavity;
the laser excitation light source assembly comprises a fluorescence excitation light source I and a fluorescence excitation light source II which are arranged on one side of the inner wall of the disinfection cavity, and a fluorescence excitation light source III and a fluorescence excitation light source IV which are arranged on the other side of the inner wall of the disinfection cavity;
the multispectral detection component comprises a multispectral camera I, a multispectral camera II, a multispectral camera III and a multispectral camera IV, and the multispectral camera I, the multispectral camera II, the multispectral camera III and the multispectral camera IV are arranged on the inner wall of the disinfection cavity;
the main control circuit board is arranged in the shell and is respectively connected with the insertion identification circuit board, the disinfection light source component, the laser excitation light source component and the multispectral detection component;
the main control circuit board executes the alcohol detector disinfection control method based on the multispectral.
A fourth aspect of the invention provides a readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the multi-spectrum based disinfection effect detection method as described above.
A fifth aspect of the invention provides a readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the multispectral-based alcohol meter disinfection control method as described above.
Compared with the prior art, the invention has prominent substantive characteristics and remarkable progress, particularly:
1) in the disinfection process, the disinfection light source assembly is started to disinfect the periphery of the blowing end; after the timing of the preset disinfection duration is finished, starting a laser excitation light source assembly for fluorescence excitation, starting a multispectral detection assembly in a disinfection effect detection period, collecting multispectral images of an alcohol detector to be disinfected area under the irradiation of different fluorescence excitation light sources, and detecting the disinfection effect of each alcohol detector to be disinfected area based on the obtained multispectral images so as to confirm whether bacteria or virus residues exist on the air blowing end of the alcohol detector to be disinfected after primary disinfection, thereby realizing high-precision and quick detection of the disinfection effect;
2) the invention also starts a certain disinfection matrix to disinfect the unqualified area again based on the disinfection effect detection result;
3) when the to-be-disinfected area of the wine inspection instrument corresponding to a multispectral camera is unqualified to be disinfected, the cycle ending time of the secondary disinfection cycle is adjusted according to the disinfection effect characteristic value delta corresponding to the to-be-disinfected area of the wine inspection instrument, so that the disinfection duration is dynamically adjusted, and the disinfection effect is ensured while energy consumption is saved;
4) after the timing of the secondary disinfection period is finished, when the disinfection of the to-be-disinfected area of the wine detector corresponding to the target disinfection effect characteristic value is unqualified and the disinfection matrix corresponding to the to-be-disinfected area of the wine detector is in a normal state, updating the corresponding relation so as to optimize the disinfection duration in real time, thereby obtaining more accurate disinfection duration;
5) the preset disinfection time T during the primary disinfection can be an empirical value, or the preset disinfection time T of the area to be disinfected of each alcohol detector can be independently configured according to the disinfection effect characteristic value delta before disinfection, so that the personalized and flexible alcohol detector disinfection control is realized.
Drawings
FIG. 1 is a flowchart of a disinfection effectiveness detection method of the present invention based on a multi-spectral disinfection effectiveness detection method;
FIG. 2 is a flow chart of a multispectral-based alcohol detector disinfection control method of the present invention;
FIG. 3 is a cross-sectional view of the multi-spectral based alcohol detector sterilization apparatus of the present invention;
FIG. 4 is a perspective view of the multispectral-based alcohol detector disinfection device of the present invention;
FIG. 5 is a schematic diagram of the internal structure of the multispectral-based alcohol detector disinfection device of the present invention;
FIG. 6 is a schematic block diagram of the electrical circuitry of the multispectral-based alcohol detector disinfection apparatus of the present invention;
in the figure: 1. a housing; 11. a disinfection inlet; 12. an alarm hole; 13. pressing a key; 14. a display screen; 15. a detection chamber; 16. a disinfection chamber;
2. an alcohol detector to be disinfected; 3. a disinfecting light source assembly; 4. exciting a light source component by laser; 5. a multi-spectral detection component; 6. inserting the identification circuit board; 7. a main control circuit board; 8. and a power supply module.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
Example 1
Fig. 1 shows a flow chart of a multispectral-based disinfection effect detection method, which comprises the following steps: acquiring a multispectral image, calculating a light spot characteristic value ES based on the multispectral image, calculating a disinfection effect characteristic value delta according to the light spot characteristic value ES, and detecting the disinfection effect of a region to be disinfected of a corresponding wine detector through the disinfection effect characteristic value delta:
extracting a multispectral image collected by a certain multispectral camera, and establishing a to-be-detected model corresponding to a to-be-disinfected area of the wine inspection instrument by taking the width of the multispectral image as an X axis, the height of the multispectral image as a Y axis and the length corresponding to the fluorescence brightness of the multispectral image as a Z axis;
determining minimum unit grids of a Z axis, wherein one minimum unit grid corresponds to a length interval corresponding to a fluorescence brightness scale interval; segmenting a multispectral image layer corresponding to each minimum unit cell on the Z axis, and obtaining the total number N of the multispectral image layers according to the ratio between the maximum fluorescence brightness and the fluorescence brightness scale interval;
determining a fluorescence brightness mean value corresponding to each minimum cell in the Z axis, and obtaining the outline of each microorganism light spot in the corresponding multispectral image layer based on the fluorescence brightness mean value; acquiring the total number M of the microbial light spots in the multispectral image layer according to the contour of the microbial light spots;
determining the minimum cell area of the XY axes, and calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, wherein i is 1 to N, N represents the total number of multispectral image layers, j is 1 to M, and M represents the total number of microbial light spots;
calculating a characteristic value factor E _ j of each microbial light spot, wherein the calculation formula is as follows:
wherein Sxy \u1jRepresenting the area of the jth microorganism light spot in the 1 st multispectral image layer in the XY direction, and so on, Sxy _ Nj representing the area of the jth microorganism light spot in the Nth multispectral image layer in the XY direction, ZNjThe maximum length (Z) corresponding to the maximum fluorescence brightness of the microbial light spotNj-Z(N-1)j) Representing a length interval corresponding to a fluorescence brightness scale interval;
summing the characteristic value factors E _ j of all the microbial light spots to obtain a light spot characteristic value ES, wherein the calculation formula is as follows:
ES＝E_1+E_2+…+E_M
wherein E _1 represents the characteristic value factor of the first microorganism light spot, and so on, and E _ M represents the characteristic value factor of the Mth microorganism light spot;
calculating a disinfection effect characteristic value delta according to the light spot characteristic value ES, wherein the calculation formula is as follows:
wherein X represents the width maximum value of the multispectral image, Y represents the height maximum value of the multispectral image, and Z represents the maximum length corresponding to the fluorescence brightness maximum value of the multispectral image;
judging whether the characteristic value delta of the disinfection effect is less than or equal to a preset value delta0If so, judging that the corresponding area to be disinfected of the wine inspection instrument is qualified, otherwise judging that the corresponding area to be disinfected of the wine inspection instrument is unqualified.
The microbial light spot refers to a light spot formed by fluorescence emitted by bacteria or viruses on the air blowing end of the alcohol detector to be disinfected after the bacteria or the viruses are irradiated by a fluorescence excitation light source. The bacteria or the viruses generate fluorescence after being excited by a fluorescence excitation light source, so that the more the bacteria or the viruses are, the larger the volume is, and the higher the fluorescence brightness is; the higher the fluorescence intensity, the greater the length of the corresponding bacterial or viral volume.
Specifically, the length of the bacterial or viral volume and the corresponding fluorescence brightness are detected and recorded in advance, and a mapping relation table of the length of the bacterial or viral volume and the corresponding fluorescence brightness is established; the mapping between the fluorescence intensity of the multispectral image and the length of the bacterial or viral volume can be obtained by a table lookup.
It can be understood that the preset value δ0According to experienceAnd setting to match the requirement of the client on the disinfection effect. In practical application, the system can be adaptively modified according to the requirements of customers.
Further, calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, executing the following steps:
sequentially extracting multispectral image layers corresponding to each minimum cell of the Z axis according to the sequence of the fluorescence brightness from small to large;
the fluorescence brightness corresponding to each minimum cell is configured to be (F)kj+F(k+1)j) 2, connecting adjacent cells with the same fluorescence brightness in the multispectral image layer to form a contour of the microbial light spot; wherein, FkjIndicating the minimum value of the fluorescence intensity of a fluorescence intensity scale interval, F(k+1)jRepresents the maximum value of fluorescence intensity of a fluorescence intensity scale interval.
Determining the minimum cell area S0 of an XY axis, the number a of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the X axis direction and the number b of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the Y axis direction;
calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXYIj, formula:
SXY_ij＝S0×a×b
wherein, a represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the X-axis direction, and b represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the Y-axis direction.
It can be understood that the outline of the microbial light spot in each multispectral image layer is determined by the corresponding fluorescence intensity of the layer; in order to shorten the detection time, light spots with the maximum fluorescence intensity value exceeding the fluorescence threshold value in the multispectral image are selected for detection.
Note that the camera pixels of the multispectral camera can be up to 6 μm by 6 μm, but the minimum cell area S0 in the XY axis does not need to be 6 μm by 6 μm in view of detection efficiency. In one embodiment, the minimum cell area S0 for the XY axis is 100 μm X100 μm, the maximum width X of the multispectral image is 3cm, and the maximum height Y of the multispectral image is 3 cm.
Example 2
Fig. 2 shows a multispectral-based alcohol detector disinfection control method, which comprises the following steps:
step 0, configuring a preset disinfection time T;
after the blowing end of the alcohol detector to be disinfected is irradiated by a 355nm fluorescence excitation light source, bacteria on the blowing end of the alcohol detector to be disinfected emit fluorescence; after the air blowing end of the alcohol detector to be disinfected is irradiated by a fluorescence excitation light source of 532nm, the virus on the air blowing end of the alcohol detector to be disinfected emits fluorescence;
step 401, extracting a multispectral image collected by a certain multispectral camera, and establishing a to-be-detected model corresponding to a to-be-disinfected area of a wine inspection instrument by taking the width of the multispectral image as an X axis, the height of the multispectral image as a Y axis and the length corresponding to the fluorescence brightness of the multispectral image as a Z axis;
step 402, determining minimum cells of a Z axis, wherein one minimum cell corresponds to a length interval corresponding to a fluorescence brightness scale interval;
segmenting a multispectral image layer corresponding to each minimum unit cell on the Z axis, and obtaining the total number N of the multispectral image layers according to the ratio between the maximum fluorescence brightness and the fluorescence brightness scale interval;
step 403, determining a fluorescence brightness mean value corresponding to each minimum cell in the Z-axis, and obtaining a profile of each microorganism spot in the corresponding multispectral image layer based on the fluorescence brightness mean value;
acquiring the total number M of the microbial light spots in the multispectral image layer according to the contour of the microbial light spots;
determining the minimum cell area of the XY axes, and calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, wherein i is 1 to N, N represents the total number of multispectral image layers, j is 1 to M, and M represents the total number of microbial light spots;
step 404, calculating a characteristic value factor E _ j of each microorganism light spot, wherein the calculation formula is as follows:
wherein Sxy \u1jRepresenting the area of the jth microorganism light spot in the 1 st multispectral image layer in the XY direction, and so on, Sxy _ Nj representing the area of the jth microorganism light spot in the Nth multispectral image layer in the XY direction, ZNjThe maximum length (Z) corresponding to the maximum fluorescence brightness of the microbial light spotNj-Z(N-1)j) Representing a length interval corresponding to a fluorescence brightness scale interval;
step 405, summing all the characteristic value factors E _ j of the microbial light spots to obtain a light spot characteristic value ES, wherein the calculation formula is as follows:
ES＝E_1+E_2+…+E_M
wherein E _1 represents the characteristic value factor of the first microorganism light spot, and so on, and E _ M represents the characteristic value factor of the Mth microorganism light spot;
step 406, calculating a disinfection effect characteristic value delta according to the spot characteristic value ES, wherein the calculation formula is as follows:
wherein X represents the width maximum value of the multispectral image, Y represents the height maximum value of the multispectral image, and Z represents the maximum length corresponding to the fluorescence brightness maximum value of the multispectral image;
step 407, judging whether the disinfection effect characteristic value delta is less than or equal to a preset value delta0If so, judging that the disinfection of the corresponding wine detection instrument to-be-disinfected area is qualified, otherwise judging that the disinfection of the corresponding wine detection instrument to-be-disinfected area is unqualified, and marking the wine detection instrument to-be-disinfected area;
judging whether the areas to be disinfected of the wine detection instruments corresponding to each multispectral camera are disinfected qualified, if so, judging that the disinfection of the alcohol detection instruments to be disinfected is completed, otherwise, starting the disinfection matrix corresponding to the marked areas to be disinfected of the wine detection instruments again, and starting the timing of a secondary disinfection period;
and (5) repeating the steps 2 to 5 until the area to be disinfected of each wine inspection instrument is disinfected to be qualified.
Further, the step 403 specifically includes the following steps:
4031, sequentially extracting a multispectral image layer corresponding to each minimum cell in the Z axis according to the sequence of the fluorescence brightness from small to large;
step 4032, configure the fluorescence brightness corresponding to each minimum cell as (F)kj+F(k+1)j) 2, connecting adjacent cells with the same fluorescence brightness in the multispectral image layer to form a contour of the microbial light spot;
step 4033, determining the minimum cell area S0 of the XY axis, the number a of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the X axis direction, and the number b of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the Y axis direction;
step 4034, calculating the area S of the j-th microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, formula:
SXY_ij＝S0×a×b
wherein, a represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the X-axis direction, and b represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the Y-axis direction.
Further, the multispectral-based alcohol detector disinfection control method further comprises the following steps:
establishing a corresponding relation between a disinfection effect characteristic value delta and disinfection duration, and prestoring the corresponding relation;
when the to-be-disinfected area of the wine inspection instrument corresponding to a multispectral camera is not disinfected properly, taking a disinfection effect characteristic value delta corresponding to the to-be-disinfected area of the wine inspection instrument as a target disinfection effect characteristic value;
and determining the target disinfection duration corresponding to the target disinfection effect characteristic value according to the pre-stored corresponding relation, and controlling the disinfection duration of secondary disinfection according to the target disinfection duration.
It should be noted that the disinfection duration of the secondary disinfection and the preset disinfection duration T corresponding to the primary disinfection can be different, so that the disinfection effect is ensured, and the energy consumption waste is avoided.
Further, the multispectral-based alcohol detector disinfection control method further comprises the following steps:
after the timing of the secondary disinfection period is finished, judging whether the disinfection of the to-be-disinfected area of the wine inspection instrument corresponding to the target disinfection effect characteristic value is qualified or not;
when the disinfection of the to-be-disinfected area of the wine inspection instrument corresponding to the target disinfection effect characteristic value is unqualified and the disinfection matrix corresponding to the to-be-disinfected area of the wine inspection instrument is in a normal state, updating the corresponding relation:
and increasing the target disinfection duration corresponding to the target disinfection effect characteristic value according to a preset step value.
It can be understood that if the disinfection of the to-be-disinfected area of the wine detector is still not qualified after the secondary disinfection, the pre-stored corresponding relation is not matched with the actual situation, and dynamic adjustment is needed.
Specifically, the preset step value may be 1 minute, 30 seconds, 10 or 5 seconds.
In order to further save energy consumption, when the preset disinfection time T is configured in the step 0, the following steps are executed:
driving a laser excitation light source component to irradiate an air blowing end of the alcohol detector to be disinfected, starting a multispectral detection component, collecting multispectral images of an area to be disinfected of the alcohol detector under the irradiation of different fluorescence excitation light sources, and calculating a disinfection effect characteristic value delta corresponding to each multispectral image;
and according to each disinfection effect characteristic value delta, independently configuring the preset disinfection time T of the area to be disinfected of each wine detector.
It should be noted that the amount of bacteria and viruses in the area to be disinfected of each wine detector may be different; when the preset disinfection time T of the area to be disinfected of each wine inspection instrument is configured independently, the preset disinfection time of the area to be disinfected of each wine inspection instrument can be determined respectively according to the pre-stored corresponding relation, and personalized configuration is carried out.
Example 3
On the basis of the embodiment 1 and the embodiment 2, the embodiment provides a specific implementation of the alcohol detector disinfection device based on multiple spectra:
as shown in fig. 3 to 6, the multispectral-based alcohol tester disinfecting device comprises a housing 1, a detection cavity 15 positioned at a disinfecting inlet 11, and a disinfecting cavity 16 positioned below the detection cavity 15, wherein the detection cavity 15 is provided with a channel for an air blowing end of an alcohol tester 2 to be disinfected to enter the disinfecting cavity 16; an insertion identification circuit board 6 is arranged in the detection cavity 15, and a disinfection light source component 3, a laser excitation light source component 4 and a multispectral detection component 5 are arranged in the disinfection cavity 16;
the disinfection light source assembly 3 comprises a disinfection matrix I, a disinfection matrix II, a disinfection matrix III and a disinfection matrix IV, and the disinfection matrix I, the disinfection matrix II, the disinfection matrix III and the disinfection matrix IV are arranged on the inner wall of the disinfection cavity 16;
the laser excitation light source component 4 comprises a fluorescence excitation light source I and a fluorescence excitation light source II which are arranged on one side of the inner wall of the disinfection cavity 16, and a fluorescence excitation light source III and a fluorescence excitation light source IV which are arranged on the other side of the inner wall of the disinfection cavity 16;
the multispectral detection component 5 comprises a fluorescence collector I, a fluorescence collector II, a fluorescence collector III and a fluorescence collector IV, and the fluorescence collector I, the fluorescence collector II, the fluorescence collector III and the fluorescence collector IV are arranged on the inner wall of the disinfection cavity 16;
a main control circuit board 7 is further arranged in the shell 1, and the main control circuit board 7 is respectively connected with the insertion identification circuit board 6, the disinfection light source component 3, the laser excitation light source component 4 and the multispectral detection component 5;
the main control circuit board executes the alcohol detector disinfection control method based on the multispectral in embodiment 2.
Specifically, the wavelengths of the disinfection light source I, the disinfection light source II, the disinfection light source III and the disinfection light source IV are 240 nm-280 nm; the wavelengths of the fluorescence excitation light source I and the fluorescence excitation light source III are 355nm, and the wavelengths of the fluorescence excitation light source II and the fluorescence excitation light source IV are 532 nm.
Further, a buzzer alarm circuit, a key circuit and a display screen 14 which are connected with the microcontroller are also arranged on the main control circuit board 7; the keys 13 of the key circuit and the display screen 14 are arranged on the outer wall of the shell 1, and the buzzer alarm circuit is arranged corresponding to the alarm hole 12 of the shell 1; the buzzer alarm circuit is used for giving an alarm when the alcohol detector 2 to be disinfected is placed at a preset position or after disinfection is completed, the key circuit is used for inputting a power-on and power-off instruction or setting parameters, and the display screen 14 is used for displaying a recognition detection result, a virus detection result or a bacteria detection result;
still set up power module 8 in the casing 1, power module 8 connects respectively master control circuit board 7, insert discernment circuit board 6 the disinfection light source subassembly 3, laser excitation light source subassembly 4 and detection circuitry for provide the power.
Example 4
This embodiment presents a readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the multispectral-based disinfection effect detection method as in embodiment 1.
This embodiment also provides another readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the multispectral-based alcohol meter disinfection control method as in embodiment 2.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The method of embodiment 1 or 2, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above may be implemented by a computer program, which may be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. The computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file or some intermediate form.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. A multispectral-based disinfection effect detection method is characterized by comprising the following steps: acquiring a multispectral image, calculating a light spot characteristic value ES based on the multispectral image, calculating a disinfection effect characteristic value delta according to the light spot characteristic value ES, and detecting the disinfection effect of a region to be disinfected of a corresponding wine detector through the disinfection effect characteristic value delta:
extracting a multispectral image collected by a certain multispectral camera, and establishing a to-be-detected model corresponding to a to-be-disinfected area of the wine inspection instrument by taking the width of the multispectral image as an X axis, the height of the multispectral image as a Y axis and the length corresponding to the fluorescence brightness of the multispectral image as a Z axis;
determining minimum unit grids of a Z axis, wherein one minimum unit grid corresponds to a length interval corresponding to a fluorescence brightness scale interval; segmenting a multispectral image layer corresponding to each minimum unit cell on the Z axis, and obtaining the total number N of the multispectral image layers according to the ratio between the maximum fluorescence brightness and the fluorescence brightness scale interval;
determining a fluorescence brightness mean value corresponding to each minimum cell in the Z axis, and obtaining the outline of each microorganism light spot in the corresponding multispectral image layer based on the fluorescence brightness mean value; acquiring the total number M of the microbial light spots in the multispectral image layer according to the contour of the microbial light spots;
determining the minimum cell area of the XY axes, and calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, wherein i is 1 to N, N represents the total number of multispectral image layers, j is 1 to M, and M represents the total number of microbial light spots;
calculating a characteristic value factor E _ j of each microbial light spot, wherein the calculation formula is as follows:
wherein, Sxy_1jRepresenting the area of the jth microorganism light spot in the 1 st multispectral image layer in the XY direction, and so on, Sxy _ Nj representing the area of the jth microorganism light spot in the Nth multispectral image layer in the XY direction, ZNjThe maximum length (Z) corresponding to the maximum fluorescence brightness of the microbial light spotNj-Z(N-1)j) Representing a length interval corresponding to a fluorescence brightness scale interval;
summing the characteristic value factors E _ j of all the microbial light spots to obtain a light spot characteristic value ES, wherein the calculation formula is as follows:
ES＝E_1+E_2+…+E_M
wherein E _1 represents the characteristic value factor of the first microorganism light spot, and so on, and E _ M represents the characteristic value factor of the Mth microorganism light spot;
calculating a disinfection effect characteristic value delta according to the light spot characteristic value ES, wherein the calculation formula is as follows:
wherein X represents the width maximum value of the multispectral image, Y represents the height maximum value of the multispectral image, and Z represents the maximum length corresponding to the fluorescence brightness maximum value of the multispectral image;
judging whether the characteristic value delta of the disinfection effect is less than or equal to a preset value delta0If so, judging that the corresponding area to be disinfected of the wine inspection instrument is qualified, otherwise judging that the corresponding area to be disinfected of the wine inspection instrument is unqualified.
2. The method according to claim 1, wherein calculating the area S of the jth microbe spot in the ith multispectral image layer in the XY directionXY_ij, executing the following steps:
sequentially extracting multispectral image layers corresponding to each minimum cell of the Z axis according to the sequence of the fluorescence brightness from small to large;
the fluorescence brightness corresponding to each minimum cell is configured to be (F)kj+F(k+1)j) 2, connecting adjacent cells with the same fluorescence brightness in the multispectral image layer to form a contour of the microbial light spot;
determining the minimum cell area S0 of an XY axis, the number a of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the X axis direction and the number b of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the Y axis direction;
calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, formula:
SXY_ij＝S0×a×b
wherein, a represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the X-axis direction, and b represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the Y-axis direction.
3. A multispectral-based alcohol detector disinfection control method is characterized by comprising the following steps:
step 0, configuring a preset disinfection time T;
step 1, detecting whether an alcohol detector is placed in alcohol detector disinfection equipment, if so, starting a disinfection light source assembly in a disinfection cavity, disinfecting a blowing end of the alcohol detector to be disinfected, and starting disinfection cycle timing;
step 2, judging whether the disinfection period timing reaches a preset disinfection duration T, if so, closing a disinfection light source assembly, driving a laser excitation light source assembly to irradiate an air blowing end of the alcohol detector to be disinfected, and starting disinfection effect detection period timing;
after the blowing end of the alcohol detector to be disinfected is irradiated by a 355nm fluorescence excitation light source, bacteria on the blowing end of the alcohol detector to be disinfected emit fluorescence; after the air blowing end of the alcohol detector to be disinfected is irradiated by a fluorescence excitation light source of 532nm, the virus on the air blowing end of the alcohol detector to be disinfected emits fluorescence;
step 3, in the disinfection effect detection period, starting a multispectral detection assembly, and collecting multispectral images of the to-be-disinfected area of the wine detector under the irradiation of different fluorescence excitation light sources; the multispectral detection component comprises at least one multispectral camera arranged on the inner wall of the disinfection cavity, and each multispectral camera corresponds to an area to be disinfected of the wine detection instrument;
step 4, calculating a light spot characteristic value ES based on each multispectral image, calculating a disinfection effect characteristic value delta according to the light spot characteristic value ES, and detecting the disinfection effect of the corresponding wine detection instrument to-be-disinfected area through the disinfection effect characteristic value delta:
step 401, extracting a multispectral image collected by a certain multispectral camera, and establishing a to-be-detected model corresponding to a to-be-disinfected area of a wine inspection instrument by taking the width of the multispectral image as an X axis, the height of the multispectral image as a Y axis and the length corresponding to the fluorescence brightness of the multispectral image as a Z axis;
step 402, determining minimum cells of a Z axis, wherein one minimum cell corresponds to a length interval corresponding to a fluorescence brightness scale interval;
segmenting a multispectral image layer corresponding to each minimum unit cell on the Z axis, and obtaining the total number N of the multispectral image layers according to the ratio between the maximum fluorescence brightness and the fluorescence brightness scale interval;
step 403, determining a fluorescence brightness mean value corresponding to each minimum cell in the Z-axis, and obtaining a profile of each microorganism spot in the corresponding multispectral image layer based on the fluorescence brightness mean value;
acquiring the total number M of the microbial light spots in the multispectral image layer according to the contour of the microbial light spots;
determining the minimum cell area of the XY axes, and calculating the area S of the jth microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, wherein i is 1 to N, N represents the total number of multispectral image layers, j is 1 to M, and M represents the total number of microbial light spots;
step 404, calculating a characteristic value factor E _ j of each microorganism light spot, wherein the calculation formula is as follows:
wherein, Sxy_1jRepresenting the area of the jth microorganism light spot in the 1 st multispectral image layer in the XY direction, and so on, Sxy _ Nj representing the area of the jth microorganism light spot in the Nth multispectral image layer in the XY direction, ZNjThe maximum length (Z) corresponding to the maximum fluorescence brightness of the microbial light spotNj-Z(N-1)j) Representing a length interval corresponding to a fluorescence brightness scale interval;
step 405, summing all the characteristic value factors E _ j of the microbial light spots to obtain a light spot characteristic value ES, wherein the calculation formula is as follows:
ES＝E_1+E_2+…+E_M
wherein E _1 represents the characteristic value factor of the first microorganism light spot, and so on, and E _ M represents the characteristic value factor of the Mth microorganism light spot;
step 406, calculating a disinfection effect characteristic value delta according to the spot characteristic value ES, wherein the calculation formula is as follows:
wherein X represents the width maximum value of the multispectral image, Y represents the height maximum value of the multispectral image, and Z represents the maximum length corresponding to the fluorescence brightness maximum value of the multispectral image;
step 407, judging whether the disinfection effect characteristic value delta is less than or equal to a preset value delta0If so, judging that the disinfection of the corresponding wine detection instrument to-be-disinfected area is qualified, otherwise judging that the disinfection of the corresponding wine detection instrument to-be-disinfected area is unqualified, and marking the wine detection instrument to-be-disinfected area;
step 5, after a disinfection detection result of a to-be-disinfected area of each wine inspection instrument is obtained, timing of a disinfection effect detection period is finished;
judging whether the areas to be disinfected of the wine detection instruments corresponding to each multispectral camera are disinfected qualified, if so, judging that the disinfection of the alcohol detection instruments to be disinfected is completed, otherwise, starting the disinfection matrix corresponding to the marked areas to be disinfected of the wine detection instruments again, and starting the timing of a secondary disinfection period;
and (5) repeating the steps 2 to 5 until the area to be disinfected of each wine inspection instrument is disinfected to be qualified.
4. The alcohol detector disinfection control method based on multispectral as claimed in claim 3, wherein the step 403 specifically comprises the following steps:
4031, sequentially extracting a multispectral image layer corresponding to each minimum cell in the Z axis according to the sequence of the fluorescence brightness from small to large;
step 4032, configure the fluorescence brightness corresponding to each minimum cell as (F)kj+F(k+1)j) 2, connecting adjacent cells with the same fluorescence brightness in the multispectral image layer to form a contour of the microbial light spot;
step 4033, determining the minimum cell area S0 of the XY axis, the number a of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the X axis direction, and the number b of cells occupied by the jth microorganism light spot in the ith multispectral image layer in the Y axis direction;
step 4034, calculating the area S of the j-th microorganism light spot in the ith multispectral image layer in the XY directionXY_ij, formula:
SXY_ij＝S0×a×b
wherein, a represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the X-axis direction, and b represents the number of the unit lattices occupied by the jth microorganism light spot in the ith multispectral image layer in the Y-axis direction.
5. The multispectral-based alcohol detector disinfection control method of claim 3, further comprising the steps of:
establishing a corresponding relation between a disinfection effect characteristic value delta and disinfection duration, and prestoring the corresponding relation;
when the to-be-disinfected area of the wine inspection instrument corresponding to a multispectral camera is not disinfected properly, taking a disinfection effect characteristic value delta corresponding to the to-be-disinfected area of the wine inspection instrument as a target disinfection effect characteristic value;
and determining the target disinfection duration corresponding to the target disinfection effect characteristic value according to the pre-stored corresponding relation, and controlling the disinfection duration of secondary disinfection according to the target disinfection duration.
6. The multispectral-based alcohol detector disinfection control method of claim 5, further comprising the steps of:
after the timing of the secondary disinfection period is finished, judging whether the disinfection of the to-be-disinfected area of the wine inspection instrument corresponding to the target disinfection effect characteristic value is qualified or not;
when the disinfection of the to-be-disinfected area of the wine inspection instrument corresponding to the target disinfection effect characteristic value is unqualified and the disinfection matrix corresponding to the to-be-disinfected area of the wine inspection instrument is in a normal state, updating the corresponding relation: and increasing the target disinfection duration corresponding to the target disinfection effect characteristic value according to a preset step value.
7. The alcohol detector sterilization control method based on multispectral according to claim 3, wherein when the preset sterilization duration T is configured in the step 0, the following steps are executed:
driving a laser excitation light source component to irradiate an air blowing end of the alcohol detector to be disinfected, starting a multispectral detection component, collecting multispectral images of an area to be disinfected of the alcohol detector under the irradiation of different fluorescence excitation light sources, and calculating a disinfection effect characteristic value delta corresponding to each multispectral image;
and according to each disinfection effect characteristic value delta, independently configuring the preset disinfection time T of the area to be disinfected of each wine detector.
8. The alcohol detector disinfection equipment based on the multispectral is characterized by comprising a detection cavity and a disinfection cavity, wherein the detection cavity is positioned at a disinfection inlet, the disinfection cavity is positioned below the detection cavity, and a channel for allowing an air blowing end of an alcohol detector to be disinfected to enter the disinfection cavity is formed in the detection cavity; an insertion identification circuit board is arranged in the detection cavity, and a disinfection light source component, a laser excitation light source component and a multispectral detection component are arranged in the disinfection cavity;
the disinfection light source assembly comprises a disinfection matrix I, a disinfection matrix II, a disinfection matrix III and a disinfection matrix IV, wherein the disinfection matrix I, the disinfection matrix II, the disinfection matrix III and the disinfection matrix IV are arranged on the inner wall of the disinfection cavity;
the laser excitation light source assembly comprises a fluorescence excitation light source I and a fluorescence excitation light source II which are arranged on one side of the inner wall of the disinfection cavity, and a fluorescence excitation light source III and a fluorescence excitation light source IV which are arranged on the other side of the inner wall of the disinfection cavity;
the multispectral detection component comprises a multispectral camera I, a multispectral camera II, a multispectral camera III and a multispectral camera IV, and the multispectral camera I, the multispectral camera II, the multispectral camera III and the multispectral camera IV are arranged on the inner wall of the disinfection cavity;
the main control circuit board is arranged in the shell and is respectively connected with the insertion identification circuit board, the disinfection light source component, the laser excitation light source component and the multispectral detection component;
the main control circuit board executes the alcohol detector disinfection control method based on the multispectral analysis method of any one of claims 3 to 7.
9. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the multi-spectral based disinfection effect detection method according to claim 1 or 2.
10. A readable storage medium having stored thereon a computer program for implementing the steps of the multispectral-based alcohol meter disinfection control method of any one of claims 3-7 when executed by a processor.
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