CN114018925B - Mouth-nose mask detection system and detection method for machine-readable noninvasive screening of novel coronavirus - Google Patents
Mouth-nose mask detection system and detection method for machine-readable noninvasive screening of novel coronavirus Download PDFInfo
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Abstract
The invention provides an oronasal mask capable of screening novel coronavirus in a machine-readable and noninvasive manner, a detection system and a detection method, which comprise a mask body, wherein ear hooks are arranged at two sides of the mask body, a nose bridge rib is arranged at the upper end of the mask body, the mask body comprises a skin-friendly layer, a filter layer and an antifouling layer from inside to outside, a machine-readable detection unit is arranged in the center of the filter layer and is positioned between the filter layer and the skin-friendly layer, the machine-readable detection unit comprises an adhesive layer, a support layer and a film layer responding to acetone stimulation, the film layer is coated on the support layer, and the adhesive layer is arranged around the support layer to arrange the support layer on the filter layer. And the conversion from PCR manual contact detection to mechanical non-contact detection is realized.
Description
Technical Field
The invention relates to the technical field of large-scale rapid epidemic situation screening, in particular to an oronasal mask capable of carrying out machine-readable non-invasive screening on novel coronavirus, and a detection system and a detection method thereof.
Background
At present, large-scale screening and diagnosis of the new coronavirus is firstly large-scale personnel gathering, the oronasopharynx virus samples are collected in a centralized mode and stored in a special storage box, and then the fluorescent quantitative RT-PCR is used for detecting the nucleic acid of the new coronavirus in the samples. The detection method has the defects of long detection period, low efficiency, incapability of realizing closed-loop management in the detection process and the like, and is not satisfactory for screening, diagnosing and preventing the large-scale novel coronavirus patients. Recently, a great deal of research and practice shows that the oronasal mask is an important technical means for collecting respiratory virus samples with high efficiency, convenience, safety, economy and closed-loop management, and discloses an oronasal mask for collecting and detecting respiratory infection virus samples and an intelligent recovery device of the oronasal mask, such as an aerosol and novel spumaa coronavirus pathogen collecting mask and collecting method (CN111513377A), a pharynx swab collecting device for reducing the risk of infection of novel coronavirus and collecting method thereof (CN111166391A), a mask for sampling novel coronavirus pneumonia pathogens (CN210445776U), a mask for collecting novel corona virus nucleic acid in breath (CN212117167U), a medical protective mask for detecting and sampling novel coronavirus nucleic acid (CN 212593581U), a mask type novel spumaa pneumonia pharynx swab collector for face mask (CN212414816U), a mask for detecting novel coronavirus pneumonia pathogens (CN 212483445U), A mask recovery device (CN 212502176U) for an epidemic prevention and control AI robot and a mask detection recovery machine (CN 112320154A).
A large number of researches show that the content of acetone in the expired breath of a diabetic patient is more than 900ppb and even can reach 1800ppb, while the content of acetone in the expired breath of a healthy person is between 300 and 900 ppb. Recent studies found that propanol levels in exhaled Breath of new crown patients and other respiratory patients were significantly elevated compared to healthy subjects, while acetone levels in exhaled Breath of new crown patients were significantly reduced compared to other respiratory infected patients and healthy subjects (Haoxuan Chen, Xiao Qi, Lu Zhang, Xinyue Li, Jianxin Ma, Chunyang Zhang, husong Feng and mahong yang, covi-19 screening using Breath-bone void organ compounds, j. break res., 15 (2021) 047104). Thus, acetone in the breath acts as a unique "fingerprint" for both the new coronavirus and the diabetic patient.
The virus sample collection oronasal mask is beneficial to closed-loop management of screening of respiratory infectious diseases such as new corona virus and the like to a certain extent, the risk of cross infection between doctors and patients is reduced, the collection efficiency is improved, the closed-loop management of the oronasal mask is promoted to a certain extent by the intelligent oronasal mask recovery device, however, in the prior art, virus samples collected from the oronasal mask still need to be collected manually in the background, the improvement range of the collection efficiency is limited, the intelligent oronasal mask recovery device mainly carries out intelligent classification, sterilization treatment and reutilization on the oronasal mask, the functions of carrying out automatic collection and detection diagnosis on infectious virus samples are not provided, and the screening and confirmation of epidemic situations still need professional personnel to detect and diagnose the artificially collected oronasal mask samples through RT-PCR. Especially, current virus sample collection oronasal mask does not possess machine and reads the function, can not realize retrieving, gather and diagnostic organic unity and automation through oronasal mask intelligence recovery unit, therefore can't improve screening speed, realize closed-loop management and formulate epidemic situation prevention and control measure early to a great extent. Therefore, in order to realize the organic unification and automation of the recovery, sample collection and diagnosis of the intelligent recovery device of the oronasal mask, the screening speed is greatly improved, the closed-loop management is realized, and data support is provided for government departments in charge and early establishment of epidemic prevention and control measures.
Disclosure of Invention
The invention provides an oral-nasal mask capable of machine-reading and noninvasive screening of novel coronavirus, a detection system and a detection method thereof, and aims to solve the problems that the oral-nasal mask does not have a machine-reading function, and organic unification and automation of recovery, collection and diagnosis cannot be realized through an intelligent recovery device of the oral-nasal mask, so that the screening speed cannot be greatly improved, closed-loop management cannot be realized, and epidemic prevention and control measures cannot be formulated as soon as possible.
In order to achieve the above object, an embodiment of the present invention provides an oronasal mask capable of machine-readable non-invasive screening of novel coronavirus:
the mask comprises a mask body, wherein ear hooks are arranged on two sides of the mask body, a nose bridge rib is arranged at the upper end of the mask body, the mask body comprises a skin-friendly layer, a filtering layer and an anti-fouling layer from inside to outside, a machine-readable detection unit is arranged in the center of the filtering layer and is positioned between the filtering layer and the skin-friendly layer, the machine-readable detection unit comprises a bonding layer, a supporting layer and a thin layer responding to acetone stimulation, the thin layer is coated on the supporting layer, and the bonding layer is arranged around the supporting layer so as to arrange the supporting layer on the filtering layer.
Preferably, the thin film layer is formed by dissolving a germanium-heterocycle compound in 10-3M in dichloromethane solution to form a mixed solution.
The application also provides a detection system of the oronasal mask for machine-readable noninvasive screening of novel coronavirus, which comprises:
the recovery module is used for collecting the oronasal mask and establishing the corresponding relation between the oronasal mask and a user;
the treatment module comprises a paving unit and a light source with adjustable wavelength, the paving unit paves the oronasal mask, and the light source irradiates the oronasal mask;
the detection module comprises a photoelectric conversion unit and a positioning unit, wherein the positioning unit is used for adjusting the position of the photoelectric conversion unit so that the photoelectric conversion unit can scan the machine-readable detection unit;
the central control module is in signal connection with the recovery module, the processing module and the detection module;
the central control module sends an instruction for collecting the oronasal mask to the recovery module, the recovery module temporarily stores the oronasal mask in the recovery module after recovering the oronasal mask, the central control module sends a processing instruction to the processing module, the paving unit paves the oronasal mask, the light source adjusts the irradiation position and angle until the machine-readable detection unit is all irradiated, the central control module sends an instruction to the detection module, the positioning unit drives the light source conversion unit to move, the light source conversion unit shoots the machine-readable detection unit and digitally processes the shot image, the central control module receives the digitally processed image and compares the digitally processed image with a preset threshold value in the central control module to obtain a first comparison result, secondary detection is carried out according to the first comparison result, the secondary detection is a result obtained by comparing the digitalization of all the oronasal masks corresponding to the user, and a change trend is obtained according to a time sequence, a second comparison result is obtained.
Preferably, the recovery module further comprises a storage unit, a packaging unit and a spraying unit, the storage unit is used for collecting the oronasal mask, the packaging unit pre-seals the oronasal mask by adopting a sealable object, the spraying unit sprays codes on the sealable object, the spraying unit stores the sprayed codes into a central control module, the central control module further comprises a client, and the codes of the central control module are matched with personal information produced by the client and stored in the central control module.
Preferably, the detecting system further comprises a killing module, the killing module is in signal connection with the central control module, the killing module is used for killing the oronasal mask, the killing module injects a certain amount of alcohol or disinfectant into the sealing object, and the recovery module performs sealing treatment on the sealing object.
Preferably, the detection system further comprises a reminding module, wherein the reminding module is used for acquiring personal information of a client and sending the replacement reminding information of the oronasal mask to the corresponding user according to the activity of the personal information.
Preferably, the detection system further comprises an entrance guard module, the entrance guard module is in signal connection with the central control module, and the entrance guard module opens and closes an entrance guard according to the first comparison result and the second comparison result.
The application also provides a machine-readable detection method for the oronasal mask for non-invasive screening of the novel coronavirus, which comprises the following steps:
step 2, sending a processing instruction to a processing module, paving the collected oronasal mask by a paving unit of the processing module, and adjusting the irradiation angle and position of a light source with adjustable wavelength of the processing module;
and 4, the photoelectric conversion unit carries out digital processing on the acquired image, stores a digital result into the central control module and compares the digital result with a threshold preset in the central control module.
Preferably, the detection method further comprises a step 5, wherein the step 5 is that the central control module sends a sterilization instruction, the sterilization module performs sterilization treatment on the oronasal mask, the sterilization treatment comprises injecting alcohol or disinfectant, the central control module sends a sealing instruction to the recovery module, and the recovery module performs sealing treatment on the oronasal mask.
Preferably, the central control module interacts with the epidemic prevention platform to transmit the detection result and the personal information.
The scheme of the invention has the following beneficial effects:
1. the invention expresses the positive and negative results of the new coronavirus detection through the optical signal, and converts the positive and negative results of the new coronavirus detection into the machine-readable electric signal through the photoelectric conversion unit, thereby realizing the intellectualization and automation of the detection, greatly improving the detection speed and realizing the conversion from the traditional PCR manual contact type detection of the new coronavirus to the mechanical non-contact type detection. The non-contact detection mode is used for replacing the traditional contact detection method, on one hand, the patient can finish the whole screening operation process independently in a closed loop mode and know the characteristics of the state of an illness directly and timely, the risk of cross infection between an infectious patient and medical staff is completely avoided, the closed loop management in the real sense is realized, on the other hand, the whole process does not need the participation of the medical staff and the PCR detection, and the labor cost and the traditional detection cost of the medical staff in epidemic prevention work are greatly reduced.
2. The invention organically combines the mouth-nose mask capable of machine-reading and noninvasive screening of the novel coronavirus and the detection system capable of intelligent batch recovery of the mouth-nose mask, and realizes organic unification of recovery, sample collection and diagnosis. On one hand, the mutual influence among samples is completely avoided, the positive detection rate is greatly improved, on the other hand, the mass, continuous and quick detection can be realized, the large-scale epidemic situation screening speed is greatly improved, and a new direction is opened up for the large-scale supervision and epidemic prevention work of the infection of the new coronavirus.
3. The invention can realize the correlation matching of the oronasal mask and the personal identity information and the travel information of the user, so that the machine-readable oronasal mask also has the function of guiding and tracking the travel of the new coronavirus patient, provides data support for the government competent department to know the development trend of the epidemic situation and to make the epidemic situation prevention and control measures in time, and can discover the epidemic situation in advance so as to enable the relevant department to take corresponding measures, prevent the expansion of the epidemic situation range and greatly reduce the workload and the labor cost of the government competent department.
4. The device can be associated with a GPS smart phone of a user, for example, journey information of the user can be acquired in real time through a WeChat applet or APP, people with high regular activity are scientifically and accurately urged to wear the oral-nasal mask, the replacement of the oral-nasal mask is actively reminded, the recovered oral-nasal mask can be positioned, and the aim of active epidemic prevention is fulfilled.
5. The invention carries out classification management on the detection result and the matching information of the oronasal mask wearers, and detects the specific position or specific travel oronasal mask wearer group through the device, thereby greatly reducing the cost and narrowing the tracking range.
6. The mouth-nose mask capable of quickly screening the novel coronavirus patients by machine reading has the advantages of simple structure and low manufacturing cost, and is suitable for large-scale production and popularization.
Drawings
FIG. 1 is an oronasal mask for machine-readable non-invasive screening of novel coronaviruses;
FIG. 2 is a schematic view of a machine readable detection unit;
FIG. 3 is a schematic view of a detection system;
FIG. 4 is a schematic diagram of the steps of the detection method.
[ description of reference ]
1-a mask body; 2. the nasal bridge rib; 3. ear hanging; 4. a machine-readable detection unit; 5. an adhesive layer; 6. a support layer; 7. a thin film layer.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the present invention provides an oronasal mask for machine-readable non-invasive screening of novel coronavirus, comprising a mask body 1, ear hooks 3 disposed at two sides of the mask body 1, and a nose bridge rib 2 disposed at an upper end of the mask body 1, wherein the mask body 1 comprises a skin-friendly layer, a filter layer and an anti-fouling layer from inside to outside. The machine-readable detection unit 4 is arranged on the filter layer, and the size of the machine-readable detection unit is 2-4cm square. The machine-readable detection unit 4 is close to one side of the skin-friendly layer, and the machine-readable detection unit 4 is arranged in the center of the filter layer, so that the machine-readable detection unit 4 can fully react with the exhaled gas.
Specifically, the machine-readable detection unit 4 includes an adhesive layer 5, a support layer 6, and a film layer 7, wherein the film layer 7 is made of a material that is responsive to an acetone stimulus. The membrane layer 7 is applied to the support layer 6 and the adhesive layer 5 is arranged around the periphery of the support layer 6 to secure the support layer 6 to the filter layer and to secure the membrane layer 7 between the filter layer and the support layer 6. Preferably, the thickness of the film layer 7 is: 0.1-2 mm.
The foregoing film layer 7 responds to acetone stimulus in three ways:
first, acetone-induced luminescent materials are dim, and such materials can be affected by the concentration of acetone, the higher the concentration, the lower the luminescent brightness. The machine-readable detection unit made of the material can react with acetone with different concentrations and is machine-readable by brightness. . Such materials include 1) germanocyclopentadiene compounds, 2) 1,1-disubstituted 2,3,4, 5-tetraphenylgermanols (1, 1- disubstitated 2,3,4, 5-tetraphenylgermoles); 3) gold (i) complex (isocyanobenzene and C)6F5-complexation of Au).
Secondly, acetone induces a non-luminescent material to emit light, which is not emitted at ordinary times and emits light when stimulated by acetone, and the emission brightness is gradually enhanced with the enhancement of the concentration of acetone. Such materials include 1), 2-Amino-3- ((E) - (4- (diethylamino) benzylidene) Amino) maleonitrile (2-Amino-3- ((E) - (4- (diethylamino) benzylidene) Amino) maleonitril), a diaminobenzonitrile functional schiff base; 2) 3,4-Bis (2,6-diisopropyl) -phenyl-1, 1,2, 5-tetraphenylsilicone oil (3, 4-Bis (2,6-diisopropyl) -phenyl-1, 1,2, 5-tetraphenyl-silole).
Third, acetone induces a luminescent color transition, which gradually changes to another color in the presence of acetone, depending on the acetone content, to a different degree. The machine readable detection unit 4 made of this material is one color at the time and emits light of another color when stimulated by acetone. Such materials include 1) tetraphenylethylene-substituted pyridinium salts (tetraphenylethylene-substituted pyridinium salts); 2) o-carborane-containing poly (fluorene).
In this embodiment, a machine-readable detection unit 4 made of a first material that is a germanocyclopentadiene compound is used. The thin film layer 7 having the germanium dicyclopentadiene compound was produced by the prior art.
In this embodiment, the machine-readable detection unit 4 made of the first material is taken as an example to explain the diagnosis principle: when the breath does not contain acetone, the first material emits bright fluorescence under the excitation of ultraviolet light, and the first brightness represents that the oral-nasal mask is in an unused state, namely a delivery state. When the novel mask is used by a coronavirus carrier, the brightness is the second brightness, and when a normal person uses the mouth-nose mask, the brightness is the third brightness. Because of the response characteristic of the first material, the second brightness is higher than the third brightness, the optical signals of the first brightness, the second brightness and the third brightness are converted into electric signals through the machine-readable signal to be compared, and whether the user is a novel coronavirus carrier or not is judged. It should be noted that the first brightness, the second brightness and the third brightness are all range values, so that when the second brightness is between the first brightness and the third brightness, the user of the oronasal mask can be determined as a carrier of the novel coronavirus. The machine readable manner of the other two materials that can respond to acetone is similar to the first principle.
As shown in fig. 3, the present application further discloses a detection system for an oronasal mask for non-invasively screening a novel coronavirus by using the aforementioned machine-readable module, which comprises a recovery module, a processing module, a detection module and a central control module, wherein the central control module serves as a control component, sends instructions to other modules and receives feedback from other modules, the recovery module is used for collecting and storing the aforementioned oronasal mask, the processing module is used for processing the collected oronasal mask, and processing the oronasal mask into a form convenient for detection, and the detection module is used for scanning the machine-readable detection unit 4 and feeding back a scanning result to the central control module.
The central control module sends an instruction for collecting the oronasal mask to the recovery module, and the recovery module collects the oronasal mask after receiving the instruction and temporarily stores the oronasal mask in the recovery module. The recovery module comprises a storage unit, a packaging unit and a spraying unit, wherein the storage unit collects the oronasal mask, the packaging unit is used for carrying out pre-sealing treatment on the oronasal mask, when the packaging unit carries out pre-sealing on the oronasal mask, a semi-packaging mode can be adopted for treatment, and mutual pollution of droplets among a plurality of oronasal masks is guaranteed. In the embodiment, the sealing material adopts a clip chain valve bag with an opening at one end and a clip chain arranged at the opening, considering the particularity of the shape of the oronasal mask. The semi-packaging means that the mouth-nose mask is put into the clip chain self-sealing bag, but sealing is not carried out, so that the subsequent module treatment is facilitated.
The spraying unit sprays a code on the sealable object and feeds the code back to the central control module. The central control module further comprises a client, and the client can exist by relying on mobile electronic devices such as mobile phones and tablets. The central control module interacts with the client, and the client collects personal information and stores the personal information in the central control module. The personal information includes personal identification information and travel information. The personal information and the codes form a pair, and the connection between the personal information and the plurality of oronasal mask codes of the user is conveniently established.
Further, the treatment module carries out further treatment to the oronasal mask after the recovery module is used for treatment, the treatment module comprises a paving unit and a light source with adjustable wavelength, wherein the paving unit is used for paving the oronasal mask to ensure that the oronasal mask is completely unfolded, the light source irradiates the oronasal mask, and under the irradiation of the light source, the light of the machine-readable detection unit 4 is excited to change. Preferably, the light source is selected from ultraviolet light.
Furthermore, the detection module comprises a positioning unit and a photoelectric conversion unit, wherein the positioning unit is used for adjusting the position of the photoelectric conversion unit, the photoelectric conversion unit is used for acquiring the image information of the machine-readable detection unit 4, and the positioning unit ensures that the photoelectric conversion unit can completely scan the machine-readable detection unit 4, thereby ensuring the integrity of the detection result.
The photoelectric conversion unit comprises an image pickup element and a digitization element, and is used for processing the shot image through the digitization element to form a digital signal, transmitting the digital signal to the central control module, comparing the digital signal with a threshold value preset in the central control module to obtain a first comparison result, and judging whether a wearer of the oronasal mask is a novel coronavirus carrier. And judging whether to carry out second detection or not according to the first comparison result, wherein in the second detection, the digitalization of a plurality of oronasal masks corresponding to the user needs to be compared, and the second comparison result is obtained by analyzing and judging. The image pickup element has a function of magnifying and collecting, and is used for magnifying an image of the oronasal mask.
If the first detection result judges that the user is a non-novel coronavirus carrier, performing a second detection to obtain a second detection result, wherein the second detection is to eliminate the detection omission caused by the fact that the machine-readable detection unit 4 fails to respond due to the fact that the time for carrying the oronasal mask is too short. And the second detection detects the digitalized results of all the oral-nasal masks under the name of the user according to the time sequence and compares the change trends. Similarly, taking the first material, namely acetone quenching aggregation-induced emission material as an example, in the first detection, the result is judged to be a non-novel coronavirus carrier, and then all the oronasal masks of the user are detected, if the digitalized results obtained by all the oronasal masks of the user according to the time sequence are gradually increased in light intensity, the user is very likely to carry novel coronavirus.
The utility model provides an use aforementioned detection system of oronasal mask of noninvasive screening novel coronavirus that can machine-read still includes the module of killing, and the module of killing links to each other with well accuse module signal, and the module of killing is used for carrying out innocent treatment to the gauze mask through shooting. The sterilizing module injects alcohol or disinfectant into the sealable object under the instruction of the central control module so as to kill novel coronavirus possibly existing in the oral-nasal mask and avoid the oral-nasal mask from generating secondary pollution. The sealable object injected with alcohol or disinfectant is sealed by the recovery module, so that the sealing performance of the sealable object is ensured. Correspondingly, the zipper is used for closing the opening of the zipper valve bag through the zipper in the embodiment.
The detection system for the oronasal mask for screening the novel coronavirus in the machine-readable noninvasive mode further comprises a reminding module, wherein the reminding module is used for acquiring personal information and reminding a corresponding user to replace the oronasal mask according to the activity of the personal information.
The utility model provides an use aforementioned detection system of oronasal mask of noninvasive screening novel coronavirus that can machine-read still includes entrance guard module, and wherein entrance guard module and well accuse module signal connection, entrance guard module open and close according to first comparison result and the second comparison result that well accuse module obtained, only is the non-novel coronavirus carrier at first comparison result and second comparison result and just opens the entrance guard, and other comparison results are all not opened the entrance guard.
The access control module performs real-time control according to the feedback of the central control module, and particularly can perform real-time and rapid screening in dense places such as airports, railway stations, high-speed railway stations, supermarkets, cinemas and the like, so that the inspection speed is increased, suspected patients can be screened in real time on site, and the access control module is controlled to prevent the patients from entering public places.
The detection system of the oronasal mask for screening the novel coronavirus in a machine-readable and noninvasive mode can be interacted with an epidemic prevention platform, and is used for transmitting results and personal information to the epidemic prevention platform to realize large digitalization.
The application also discloses a detection method of the mouth-nose mask capable of carrying out machine-readable non-invasive screening on the novel coronavirus, which comprises the following steps:
in this step, the purpose is to establish a correspondence between the user and a plurality of oronasal masks of the user, thereby facilitating data tracking and dynamic detection.
Step 2, the central control module sends a processing instruction to the processing module, a paving unit of the processing module paves the collected oronasal mask, and the irradiation angle and the position of a light source with adjustable wavelength of the processing module are adjusted;
in this step, the purpose is to flatten the oronasal mask or machine-readable detection unit 4 to avoid the influence of the machine-readable detection unit 4 being covered on the detection effect.
and 4, the photoelectric conversion unit carries out digital processing on the acquired image, stores the digital result in the central control module, compares the digital result with a threshold preset in the central control module to obtain a first detection result, and judges whether to compare the digital results of a plurality of oronasal masks of the same user according to the first detection result to obtain a second detection result.
In step 3 and step 4, the photoelectric conversion unit includes a camera element and a digital element, wherein the camera element can be a high-definition camera, the high-definition camera takes a picture of the machine-readable detection unit 4 for multiple times, the digital unit digitalizes the picture, extracts features, compares the features with a threshold value preset in the central control module, and judges whether the mask is used by a novel coronavirus carrier according to a comparison result.
If the first detection result judges that the user is a non-novel coronavirus carrier, performing a second detection to obtain a second detection result, wherein the second detection is to eliminate the detection omission caused by the fact that the machine-readable detection unit 4 fails to respond due to the fact that the time for carrying the oronasal mask is too short. And the second detection detects the digitalized results of all the oral-nasal masks under the name of the user according to the time sequence and compares the change trends. Similarly, taking the first material, namely acetone quenching aggregation-induced emission material as an example, in the first detection, the result is judged to be a non-novel coronavirus carrier, and then all the oronasal masks of the user are detected, if the digitalized results obtained by all the oronasal masks of the user according to the time sequence are gradually increased in light intensity, the user is very likely to carry novel coronavirus.
The method further comprises a step 5, wherein the step 5 is that a sterilization instruction is sent out by the central control module, the sterilization module carries out sterilization treatment on the oronasal mask, the sterilization treatment comprises modes of injecting alcohol or disinfecting and the like, the central control module sends out a sealing instruction to the recovery module, and the recovery module carries out sealing treatment on the oronasal mask.
The method can also perform data interaction with an epidemic prevention platform, send the detection result to the epidemic prevention platform, perform classification statistics and trend change processing on the detection result, establish a user database, feed the detection result back to the user, and provide the data such as the statistics result and the trend change to government authorities.
The method can interact with the existing access control system, and the first detection result and the second detection result are sent to the access control system, so that the opening and closing of the access control system are controlled. When any one of the first detection result and the second detection result judges that the user is a novel coronavirus carrier or a possible carrier, the access control is kept closed; when the first detection result and the second detection result both judge that the user does not carry the novel coronavirus, the entrance guard is opened.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (2)
1. A machine-readable detection system for an oronasal mask for non-invasive screening of novel coronaviruses, comprising: the oronasal mask comprises a mask body, wherein ear hooks are arranged on two sides of the mask body, a nose bridge rib is arranged at the upper end of the mask body, the mask body comprises a skin-friendly layer, a filter layer and an anti-fouling layer from inside to outside, a machine-readable detection unit is arranged in the center of the filter layer and is positioned between the filter layer and the skin-friendly layer, the machine-readable detection unit comprises a bonding layer, a support layer and a film layer responding to acetone stimulation, the film layer is coated on the support layer, and the bonding layer is arranged around the support layer so as to arrange the support layer on the filter layer;
the film layer is prepared by dissolving germanium-hetero cyclopentadiene compound with light emitting performance changed by acetone stimulation in 10-3M in dichloromethane solution to form a mixed solution;
the detection system comprises:
the recovery module is used for collecting the oronasal mask and establishing the corresponding relation between the oronasal mask and a user;
the treatment module comprises a paving unit and a light source with adjustable wavelength, the paving unit paves the oronasal mask, and the light source irradiates the oronasal mask;
the detection module comprises a photoelectric conversion unit and a positioning unit, wherein the positioning unit is used for adjusting the position of the photoelectric conversion unit so that the photoelectric conversion unit can scan the machine-readable detection unit;
the central control module is in signal connection with the recovery module, the processing module and the detection module;
the central control module sends an instruction for collecting the oronasal mask to the recovery module, the recovery module temporarily stores the oronasal mask in the recovery module after recovering the oronasal mask, the central control module sends a processing instruction to the processing module, the paving unit paves the oronasal mask, the light source adjusts the irradiation position and the angle until the machine-readable detection unit is all irradiated, the central control module sends an instruction to the detection module, the positioning unit drives the light source conversion unit to move, the light source conversion unit shoots the machine-readable detection unit and digitalizes the shot image, the central control module receives the digitalized image and compares the image with a preset threshold value in the central control module to obtain a first comparison result, whether secondary detection is carried out or not is judged according to the first comparison result, the secondary detection is a result obtained by comparing the digitalization of all the oronasal masks corresponding to the user, and a change trend is obtained according to a time sequence, obtaining a second comparison result;
the recovery module further comprises a storage unit, a packaging unit and a spraying unit, wherein the storage unit is used for collecting the oronasal mask, the packaging unit is used for pre-sealing the oronasal mask by adopting a sealable object, the spraying unit is used for spraying codes on the sealable object, the spraying unit is used for storing the sprayed codes to a central control module, the central control module further comprises a client, and the codes of the central control module are matched with personal information produced by the client and are stored in the central control module;
the detection system further comprises a sterilizing module which is in signal connection with the central control module and is used for sterilizing the oronasal mask, quantitative alcohol or disinfectant is injected into the sealing object by the sterilizing module, and the sealing object is sealed by the recovery module;
the detection system also comprises a reminding module, wherein the reminding module is used for acquiring personal information of a client and sending an oronasal mask replacement reminding message to a corresponding user according to the activity of the personal information; the detection system further comprises an entrance guard module, the entrance guard module is in signal connection with the central control module, and the entrance guard module opens and closes an entrance guard according to the first comparison result and the second comparison result.
2. A method of using the machine-readable non-invasive screening oronasal mask for detecting a novel coronavirus according to claim 1, comprising:
step 1, displaying a two-dimension code to a user, acquiring personal information filled by the user through scanning the two-dimension code, and storing the personal information in a central control module, wherein the central control module instructs a recovery module to collect the oronasal mask, bag and code the oronasal mask, the recovery module transmits the code to the central control module, pairs the code with the personal information and stores the code in a database, and the recovery module stores the collected oronasal mask in the recovery module;
step 2, sending a processing instruction to a processing module, paving the collected oronasal mask by a paving unit of the processing module, and adjusting the irradiation angle and position of a light source with adjustable wavelength of the processing module;
step 3, sending a detection instruction to a detection module, wherein a positioning unit of the detection module adjusts a photoelectric conversion unit until the photoelectric conversion unit completely collects a machine-readable detection unit;
step 4, the photoelectric conversion unit carries out digital processing on the acquired image, stores the digital result into a central control module and compares the digital result with a threshold value preset in the central control module
The detection method also comprises a step 5, wherein the step 5 is that the central control module sends a sterilization instruction, the sterilization module carries out sterilization treatment on the oronasal mask, the sterilization treatment comprises injecting alcohol or disinfectant, the central control module sends a sealing instruction to the recovery module, and the recovery module carries out sealing treatment on the oronasal mask;
the central control module interacts with the epidemic prevention platform to transmit the detection result and the personal information.
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| CN113376068A (en) * | 2021-07-06 | 2021-09-10 | 南京瀚海星河信息技术有限公司 | Sign detection assembly and detection system for breathing mask |
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| CN111505076A (en) * | 2020-03-09 | 2020-08-07 | 广州市宝创生物技术有限公司 | Mask capable of detecting novel coronavirus pneumonia pathogens and using method |
| CN212502176U (en) * | 2020-05-18 | 2021-02-09 | 郑州机械研究所有限公司 | A gauze mask recovery unit for epidemic situation prevention and control AI robot |
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| CN112394172A (en) * | 2020-12-03 | 2021-02-23 | 长春理工大学 | Acetone monitoring device for exhaled gas of diabetic patient |
| CN113519939B (en) * | 2021-09-17 | 2021-12-28 | 中南大学 | Mouth-nose mask for visible target collection of novel coronavirus sample and visible warning |
| CN113628738B (en) * | 2021-10-08 | 2022-01-04 | 中南大学 | Active epidemic prevention device and method for intelligent recovery and detection of oronasal mask |
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