CN110553968A - Artificial intelligent simulation head model for detecting children respiratory protection articles - Google Patents
Artificial intelligent simulation head model for detecting children respiratory protection articles Download PDFInfo
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- 238000004088 simulation Methods 0.000 title claims abstract description 41
- 230000000241 respiratory effect Effects 0.000 title claims description 16
- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000000741 silica gel Substances 0.000 claims abstract description 9
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 9
- 210000003128 head Anatomy 0.000 claims description 177
- 230000007246 mechanism Effects 0.000 claims description 90
- 238000013473 artificial intelligence Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 9
- 210000001061 forehead Anatomy 0.000 claims description 8
- 230000001815 facial effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 47
- 239000002245 particle Substances 0.000 abstract description 7
- 230000003068 static effect Effects 0.000 abstract description 6
- 235000002505 Centaurea nigra Nutrition 0.000 abstract description 5
- 241001073742 Mylopharodon conocephalus Species 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000000887 face Anatomy 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 210000001331 nose Anatomy 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 210000004279 orbit Anatomy 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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Abstract
The invention discloses an artificial intelligent simulation head model for detecting children breathing protection articles, which comprises: head die casing, base, control system, motion. The appearance of the head model shell is the appearance of the head and neck of a human; the head mould shell is made of silica gel material; the artificial intelligent simulation head die provided by the invention can complete the tightness test of a mask sample, avoid the risk that testers inhale harmful particles, improve the limitation of testing the tightness of a static hard head die and improve the testing accuracy.
Description
Technical Field
The invention relates to an artificial intelligent head model, in particular to an artificial intelligent head model for detecting the fit of a respiratory protection article.
Background
with the development of science and technology and the continuous improvement of national living standard, the health protection consciousness of the whole people is stronger and stronger. Through the popular science of the harmfulness of the public media to the air pollution particles such as haze, PM2.5 and the like, the health consciousness of people on respiratory protection is gradually strengthened. The mask is used as an important means of a respiratory protection article, and the state also provides corresponding execution standards for standardizing the quality of respiratory protection products on the market. Such as mandatory national standard GB 2626 of industrial masks 2006 respiratory protection articles-self-priming filtering type particulate-proof respirators and recommended national standard GB/T32610 of civil masks 2016 of daily protective mask technical specifications.
However, the standard mentioned above is applicable to adult population, and the immature population is regarded as the weak population, and is the respiratory protection object with important protection. The mask for children is a respiratory protection article mainly provided for children in the age stage of 3-14 years. Unlike adult masks, which have strict industry standards, children masks do not have national and world standards. At present, no standard or detection requirement related to the child mask exists in China, Europe and America and other countries. The reason for this is that children who are in the process of rapid growth and development have very large differences in their faces, and cannot be classified broadly by age, weight, or sex at all. Therefore, the quality of breathing protective articles such as the child masks on the market is uneven, consumers do not know how to identify or select the proper child protective mask, and manufacturers do not clearly determine which means or standard to detect and measure the tightness of the child masks.
If the fitting degree of the children mask is tested by a real person according to the standard GB 2626-2006, two problems exist:
Firstly, in the test process, the children need to carry out the breath tightness test of salt and oily particles in a closed simulation bin, and the risk of inhaling harmful particles and the ethical problem of using the children as experimental objects exist;
Secondly, due to the growth specificity of children, the difference of the sizes of the faces of children at different ages is large, different test results can be caused when a tester selects different test objects, and the difference of subjective operability can exist.
if the static hard head mold test of large, medium and small adults with different sizes is used for the tightness in the reference GB/T32610-2016, two problems also exist:
Firstly, the method comprises the following steps: the static head model can only test the closure tightness of the mouth mask in a static state, neglects the problem of loose closure tightness in a dynamic living environment of children, and has inaccurate and comprehensive test results;
secondly, the method comprises the following steps: the hard head model has large shape difference with the face of a real person, has poor fitting degree, and is difficult to simulate the real condition of wearing the mask by a user.
Thirdly, the method comprises the following steps: the size difference between the static hard head model of the adult and the face of the child is large, and the test result cannot represent the real level of the child.
Therefore, there is a need to provide a new head model for detecting the tightness of the respiratory protection product, so as to overcome the disadvantages and shortcomings of the existing detection method and fill the blank of the children's money testing head model.
disclosure of Invention
The technical problem to be solved by the invention is to provide an artificial intelligent simulation head model for detecting children respiratory protection articles, which can complete normal breathing, mouth opening and closing speaking, head shaking, head nodding and other test action simulation in the mask fitting degree test process, overcome the defects of static hard head model test, and simultaneously avoid the risk of inhalation of harmful particles by testers and solve the ethical problem of children experiments.
in order to solve the technical problem, the invention provides an artificial intelligent simulation head model for detecting children breathing protection articles, which comprises a head model shell, a base, a control system and a motion mechanism, wherein the base is fixedly connected with the head model shell;
the appearance of the head model shell is the appearance of a human head and neck, and is provided with a head and a neck; the head die shell is internally provided with a hollow cavity; the neck part of the head die shell is fixedly connected with the base; a fixed support is arranged on the base and is positioned in the cavity; the motion mechanism is arranged in the cavity;
The head die shell is made of a silica gel material, and the Shore hardness of the silica gel material is 10 HA;
The motion mechanism comprises a nodding mechanism, a shaking mechanism and an opening and closing mechanism;
the head nodding mechanism comprises a first motor and a first crank connecting rod mechanism driven by the first motor, the first motor is fixedly arranged on the fixed support, the first crank connecting rod mechanism is connected with the inner wall of the face of the head die shell, and the first motor drives the first crank connecting rod mechanism to move up and down in the vertical direction so that the first crank connecting rod mechanism drives the head to move up and down;
The oscillating mechanism comprises a second motor, a driving gear driven by the second motor and a fixed gear meshed with the driving gear; the second motor is fixedly arranged on the fixed support, and the fixed gear is connected with the inner wall of the neck of the head die shell; the second motor drives the driving gear to rotate in a horizontal plane, and the driving gear drives the fixed gear to rotate in the horizontal plane so that the head of the head die shell rotates in the horizontal plane relative to the base;
The opening and closing mechanism comprises a third motor and a third crank connecting rod mechanism driven by the third motor, the third motor is fixedly installed on the fixed support, the third crank connecting rod mechanism is connected with the inner wall of the lower jaw of the head part of the head die shell, and the third motor drives the third crank connecting rod mechanism to move up and down in the vertical direction so that the third crank connecting rod mechanism drives the lower lip of the head part to move up and down;
The control system is respectively electrically connected with the first motor, the second motor and the third motor and is used for controlling and adjusting the working states of the first motor, the second motor and the third motor;
The head of the head die shell is provided with an oral-nasal cavity pipeline which is used for being connected with a breathing simulator.
Specifically, the oral-nasal cavity pipeline takes three holes of the middle part, the nostrils and the back brain of a head model face, and is communicated through the pipeline.
Specifically, the first crank link mechanism is connected with the inner wall of the face of the head die shell through a face support, and the face support is connected with at least the forehead part and the lower jaw part of the head die shell. When the first crank connecting rod mechanism moves, the whole face between the forehead part and the lower jaw part is driven to move up and down.
specifically, a sliding block and a sliding rail which are matched with each other are arranged at the connecting position of the face support and the inner wall of the face of the head die shell, and the sliding block can slide left and right in the horizontal plane relative to the sliding rail. When the head mould shell rotates left and right (shakes), the sliding block and the sliding rail slide left and right in the horizontal plane.
Specifically, the first crank-link mechanism comprises a first rod, a second rod and a third rod; one end of the first rod is connected with the first motor, and the other end of the first rod is pivoted with one end of the second rod; one end of the third rod is connected with the inner wall of the face of the head die shell, and the other end of the third rod is pivoted with the fixed support; the other end of the second rod is pivoted with the part between the two ends of the third rod. And the first motor drives the first rod, the second rod and the third rod to move in a vertical plane when operating.
specifically, the first motor is a direct current servo motor.
Specifically, the nodding mechanism drives the head to move up and down within an angle range of 0-60 degrees.
specifically, the fixed gear is connected with the inner wall of the neck of the head die shell through a fixed disk; the fixed gear is fixedly connected with the fixed disc; the inner wall of the neck of the head die shell is provided with a limiting part, and the limiting part is clamped with the fixed disk to fix the fixed disk with the inner wall of the neck of the head die shell.
specifically, the second motor is a stepping motor.
specifically, the oscillating mechanism enables the head of the head die shell to rotate in the horizontal plane relative to the base within the angle range of 0-45 degrees on the left and right sides respectively.
Specifically, the third crank-link mechanism comprises a fourth rod, a fifth rod and a sixth rod; one end of the fourth rod is connected with the third motor, and the other end of the fourth rod is pivoted with one end of the fifth rod; the other end of the fifth rod is pivoted with one end of the sixth rod, and the other end of the sixth rod is connected with the inner wall of the lower lip part of the head die shell; and the part between the two ends of the sixth rod is pivoted with the fixed bracket. And the third motor drives the fourth rod, the fifth rod and the sixth rod to move in a vertical plane when in operation.
specifically, the third motor is a direct current servo motor.
Specifically, the mouth opening and closing mechanism drives the lower lip of the head to move up and down within an angle range of 0-30 degrees.
specifically, the control system comprises a control circuit board; the control circuit board is arranged in the head die shell and is electrically connected with the first motor, the second motor and the third motor.
Specifically, the control system comprises a display; the display is used for displaying the working state of the head die.
Specifically, the control system includes a control panel for inputting and adjusting control signals for the head module.
specifically, the control system comprises a wireless signal receiver, and the wireless signal receiver is connected with the control circuit board; and the wireless signal receiver is responsible for receiving the control signal and transmitting the control signal to the control circuit board.
Specifically, the oral-nasal cavity body tube is used for communicating the head mould with a pressure measuring tube in the mask testing system.
The base supports the head die movement structure and is connected with the control system to form an integrated artificial intelligent simulation head die.
The artificial intelligent simulation head model provided by the invention is highly fitted with a human head model, is provided with a control system and a motion mechanism, controls the motion of the motion mechanism according to an instruction sent by the control system, respectively completes the test actions of breathing, speaking, shaking head, raising head, lowering head and the like, and can complete the test of the fitting degree of a test sample under dynamic action; the artificial intelligent simulation head die adopts the elastomer silica gel material and the motion mechanism to be matched to replace a real person or a test head die in the original test method, so that the test flow is simplified, the defects of the test head die are improved, the test accuracy is improved, and meanwhile, the risk that testers inhale harmful particles is avoided.
Drawings
fig. 1 is a schematic structural diagram of an artificial intelligence simulation head model of the present invention.
Fig. 2 is a schematic structural diagram of a specific embodiment of a nodding mechanism of the artificial intelligence simulation head model of the invention.
fig. 3A is a schematic structural diagram of an embodiment of the oscillating mechanism of the artificial intelligence simulation head model according to the present invention.
fig. 3B is a top view of fig. 3A.
fig. 4 is a schematic structural diagram of an embodiment of an opening and closing mechanism of an artificial intelligence simulation head model according to the present invention.
FIG. 5 is a schematic diagram of the internal circuit control of an embodiment of the artificial intelligence head model of the present invention.
1. A head die housing;
10. a cavity;
11. A head portion;
111. a limiting part;
112. A lower lip;
113. Forehead part;
114. a lower jaw portion;
12. A neck portion;
2. a base;
21. fixing a bracket;
3. A control system;
31. A control circuit board;
32. A display;
33. a wireless signal receiver;
34. a control panel;
4. A motion mechanism;
5. a nodding mechanism;
51. A first motor;
52. a first crank link mechanism;
521. a first lever;
522. A second lever;
523. A third lever;
53. A facial support;
6. a head shaking mechanism;
61. A second motor;
62. A driving gear;
63. Fixing a gear;
64. Fixing the disc;
7. An opening and closing mechanism;
71. A third motor;
72. A third crank link mechanism;
721. A fourth bar;
722. a fifth lever;
723. A sixth rod;
8. an oral nasal cavity conduit;
9. a mask.
Detailed Description
the technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
example one
As shown in fig. 1, a schematic structural diagram of an artificial intelligence simulation head model of the present invention includes a control system 3, a head model housing 1, a motion mechanism 4 and a base 2. The head model shell 1 has an appearance similar to that of a human head and neck, and has an appearance of a head 11 (including a forehead, an eye socket, an auricle, an oral part, a nose, a lower jaw 112, and the like), a neck 12, and the like. The size and the dimension of the head model shell 1 are manufactured according to the proportion of 1:1 by referring to data in the standard GBT 26160-. The top layer of the head mould shell 1 is made of a silica gel material by adopting a 3D printing technology, the Shore hardness of the silica gel material is 10HA, the silica gel material HAs proper toughness and elasticity, the appearance of the head mould can be kept, and the head mould can deform to a certain degree, so that the head mould can complete the actions of nodding, shaking, opening and the like under the traction of the movement mechanism 4. The head die shell 1 is internally provided with a hollow cavity 10, the neck 12 of the head die shell 1 is fixedly connected with the base 2, the base 2 is provided with a fixed support 21, the fixed support 21 is positioned in the cavity 10, and the moving mechanism 4 is arranged in the cavity 10. The head 11 of the head die shell 1 is provided with an oral-nasal cavity pipeline 8, and the oral-nasal cavity pipeline 8 is used for being connected with a breathing simulator to carry out breathing test.
the motion mechanism 4 comprises at least a nodding mechanism 5, a head shaking mechanism 6 and an opening and closing mechanism 7 of the mouth part.
Fig. 2 is a schematic structural diagram of an embodiment of the nodding mechanism 5. As shown in fig. 2, the nodding mechanism 5 includes a first motor 51 and a first crank link mechanism 52 driven by the first motor 51. The first motor 51 is fixedly mounted on the fixed support 21, the tail end of the first crank connecting rod mechanism 52 is connected with the inner wall of the face of the head 11 of the head die shell 1, and the first motor 51 drives the first crank connecting rod mechanism 52 to enable the tail end of the first crank connecting rod mechanism 52 to move up and down in the vertical direction in a vertical plane, so that the first crank connecting rod mechanism 52 drives the face of the head die shell 1 to move up and down, and the nodding action is simulated. In a specific embodiment, the first crank mechanism 52 is connected to the inner wall of the head 11 of the head model housing 1 through a face support 53. In the preferred embodiment, the face support 53 is connected to the forehead portion 113 and the chin portion 114 of the head 11 of the head model case 1. When the first crank link mechanism 52 moves, the forehead portion 113 and the chin portion 114 are driven to move up and down integrally. In the preferred embodiment, the face support 53 is a thin rod, and the two ends of the thin rod are connected to the forehead portion 113 and the chin portion 114, respectively. Wherein, the two ends of the face support 53 are provided with sliding blocks, and the connecting part of the face inner wall of the head part 11 of the head die shell 1 and the face support 53 is provided with a sliding rail matched with the sliding blocks, and the sliding blocks and the sliding rail can slide left and right in the horizontal plane. When the head mold housing 1 swings, the head 11 swings left and right, and the slider slides along the slide rail, so that the first crank link mechanism 52 and the face support 53 do not obstruct the swing motion. In a particular embodiment, the first crank-link mechanism 51 comprises a first rod 521, a second rod 522 and a third rod 523; one end of the first rod 521 is connected to the first motor 51, and the other end of the first rod 521 is pivotally connected to one end of the second rod 522; one end of the third rod 523 is directly connected with the inner wall of the face of the head 11 of the head die case 1 or indirectly connected through the face bracket 53, and the other end of the third rod 523 is pivoted with the fixed bracket 21; the other end of the second lever 522 is pivotally connected to a portion between both ends of the third lever 523.
Fig. 3A and 3B are schematic structural views of an embodiment of the oscillating mechanism 6. As shown in fig. 3A and 3B, the oscillating mechanism 6 includes a second motor 61, a drive gear 62 driven by the second motor 61, and a fixed gear 63 engaged with the drive gear 62. Wherein, the second motor 61 is fixedly installed on the fixed bracket 21, and the fixed gear 62 is connected with the inner wall of the neck portion 12 of the head die shell 1. The second motor 61 drives the driving gear 62 to rotate in the horizontal plane, and the driving gear 62 drives the fixed gear 63 engaged with the driving gear to rotate in the horizontal plane, so that the neck 12 of the head model shell 1 connected with the fixed gear 63 rotates in the horizontal plane relative to the base 2, and the shaking motion is simulated. In a specific embodiment, the fixed gear 63 is connected to the inner wall of the neck portion 12 of the head die case 1 through a fixed disk 64, and the fixed gear 63 is fixedly connected to the fixed disk 64. A stopper 111 is provided on the inner wall of the neck portion 12 of the die case 1, and the stopper 111 engages with the fixed disk 64 to fix the fixed disk 64 to the inner wall of the neck portion 12 of the die case 1. The limiting part 111 is a protrusion or a groove formed on the inner wall of the neck 12 of the head mold housing 1, and is matched with the groove or the protrusion on the edge of the fixing plate 64, and fig. 3B shows that the limiting part 111 is a groove, and the edge of the fixing plate 64 has a protrusion matched with the groove.
Fig. 4 is a schematic structural view of an embodiment of the opening and closing mechanism 7. As shown in fig. 4, the mouth opening and closing mechanism 7 includes a third motor 71 and a third crank link mechanism 72 driven by the third motor 71. The third motor 71 is fixedly mounted on the fixed bracket 21, the tail end of the third crank link mechanism 72 is connected with the inner wall of the lower jaw 112 of the head 11 of the head die shell 1, and the third motor 71 drives the third crank link mechanism 72 to move up and down in the vertical plane, so that the third crank link mechanism 72 drives the lower jaw 112 of the head 11 to move up and down, and the opening and closing of the mouth part is simulated. In a particular embodiment, the third crank-link mechanism 72 includes a fourth rod 721, a fifth rod 722, and a sixth rod 723; one end of the fourth rod 721 is connected to the third motor 71, and the other end of the fourth rod 721 is pivotally connected to one end of the fifth rod 722; the other end of the fifth rod 722 is pivoted with one end of the sixth rod 723, the other end of the sixth rod 723 is connected with the inner wall of the lower lip 112 of the head 11 of the head die housing 1, and the part between the two ends of the sixth rod 723 is pivoted with the fixing bracket 21. The end of the sixth rod 723 connected to the head die case 1 is provided with a slider, and the inner wall of the lower lip 112 of the head die case 1 is provided with a slide rail which is matched with the slider, and the slider and the slide rail can slide left and right in the horizontal plane.
Fig. 5 is a schematic diagram of the internal circuit control of the artificial intelligence head model of the present invention, and the control system 3 includes a control circuit board 31, a display 32, a wireless signal receiver 33 and a control panel 34. The control circuit board 31 may be installed in the head mold housing 1 or the base 2, and the control circuit board 31 is electrically connected to the first motor 51, the second motor 51, and the third motor 53 to control the movement of the first crank link mechanism 52, the second crank link mechanism 62, and the third crank link mechanism 72, respectively. The display 32 is connected to the control circuit board 31 for displaying the operating state of the head module. And a control panel 34 for inputting and adjusting control signals of the head module. The wireless signal receiver 33 is connected to the control circuit board 31, and is responsible for receiving the control signal and transmitting the control signal to the control circuit board 31. The control panel 34 may be integrated into a remote controller, and is wirelessly connected to the wireless signal receiver 33 by bluetooth, wifi, or the like.
In a specific embodiment, the head mold tightness detection adopts a TSI 8038 mask tightness tester in mandatory national standard GB 2626 and 2006 "respiratory protection article-self-priming filter type particulate-preventing respirator" and a data acquisition device matched with the standard to acquire results. The particulate matter sampling flow is controlled to be 1-2L/min, the particulate matter is guided into a detection bin, a head die is worn on a detected sample in a clean air area, the wearing airtightness is detected according to a using method, the head die is placed in the detection bin, a nose breathing hole is connected with a particulate matter sampling pipe, and a test instruction is input through a control system 1 to complete the following actions of the head die following a movement mechanism 4: (1) standing the head for 2 min; (2) head is turned left and right 60 ° (about 15 times); (3) head up and down (approximately 15 times) 60 °; (4) the mouth is opened and closed for 30 degrees to simulate the speaking state for 2 min; (5) the head was at rest for 2 min.
In a specific embodiment, the artificial intelligence head model further comprises a power supply, and the power supply adopts an adapter of 240v to 12 v. The operating voltage of the first motor 51, the second motor 61, the third motor 71 and the control circuit board 31 is 12 v.
Also shown in fig. 1 is a respiratory protection article (mask 9) worn on the face of the artificial intelligence headform. In the in-service use, be connected to artifical intelligent head mould leakproofness test machine, dress the test sample to the head mould on, adjust to suitable state after, through control system input action instruction during the test, corresponding test action is made according to received instruction to the motion, can test respiratory protection articles for use or daily protection type gauze mask the degree of closure under the motion state.
Example two test experiments
1. Object and method
1.1 test subjects: inclusion criteria were: (1) adult test subjects over 18 years old; (2) juveniles of 3-18 years old, juveniles tester accompanied by guardian; (3) an intelligent simulation head model; (4) voluntarily attend this test and sign informed consent. Exclusion criteria: (1) patients with asthma, dyspnea or respiratory disease; (2) people with allergic history to salt or oily particles in the air; (3) patients with heart disease and hypertension; (4) the test can not be performed as required.
1.2.1 test methods: the result acquisition is carried out by adopting an American TSI 8038 mask tightness tester in mandatory national standard GB 2626 plus 2006 respiratory protection article-self-priming filtering type particulate-preventing respirator and a data acquisition device matched with the standard. The sampling flow rate of the particulate matters is controlled to be 1-2L/min, the particulate matters are led into a detection bin, a tested sample is worn by a tested person in a clean air area, the wearing airtightness is detected according to a using method, a particulate matter sampling pipe is connected, and the tested person finishes the following actions according to a time requirement sequence: (1) the head is still and does not speak for 2 min; (2) the head is rotated left and right (about 15 times) to see the left and right walls of the detection bin for 2 min; (3) the top and the ground of the detection cabin are checked for 2min by raising and lowering the head (about 15 times); (4) reading characters or speaking with loud voice for 2 min; (5) the head is still and the speaker is not speaking for 2 min.
1.2.2 evaluation criteria: judging the tightness of the detected mask sample according to the test result: the comprehensive sealing performance is more than or equal to 90 percent, and the protection effect is grade A; the comprehensive sealing performance is more than or equal to 85 percent, and the protection effect is B level; the comprehensive sealing performance is more than or equal to 75 percent, and the protection effect is grade C; the comprehensive sealing performance is more than or equal to 65 percent, and the protection effect is grade D.
1.2.3 grouping method of testers, wherein an intelligent simulation head model 1 and an intelligent simulation head model 2 are used as an experimental group, and adults and children are respectively used as a control group, wherein the experimental group W 1 is an intelligent simulation head model of adults, the control group selects 100 adults meeting the inclusion standard in 1.1 as the control group and 10 people as a group, the weighted average value of each group of test results is marked as Bn (respectively marked as B 1 -B 10), the experimental group C 1 is an intelligent simulation head model of children, the control group selects 100 children meeting the inclusion standard in 1.1 as the control group and 10 people as a group, and the weighted average value of each group of test results is marked as Sn (respectively marked as S 1 -S 10).
1.2.4 test results evaluation: the tester performs the correlation test operation of mask adhesion according to the above-mentioned grouping control group and experimental group and makes corresponding evaluation, and if the error rate of the experimental group result is within ± 1%, the correlation is good by using "√" as a standard, and if the error rate of the experimental group result exceeds ± 1%, the correlation is poor by using "x".
Results
the correlation results of the mask tightness test between the adult real person and the intelligent simulation head model are shown in table 1.
Table 1 shows statistics of mask fit test results of the adult test group (W 1) and the control group (B 1 -B 10).
The correlation results of the mask tightness test of the real child and the intelligent simulation head model are shown in table 2.
table 1 shows statistics of mask fit test results of the adult test group (C 1) and the control group (S 1 -S 10).
The experiment finds that statistical differences exist in the results of the sealing performance of the real person and the intelligent simulation head model of the experiment group and the control group, wherein 7 groups of 10 experiments of 100 samples of the adult group are within an error allowable range, and 8 groups of 10 experiments of 100 samples of the child group are within an error allowable range. The intelligent simulation head model provided by the application has higher correlation with the real person test result.
In summary, the above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (16)
1. An artificial intelligence emulation head former for children's respiratory protection articles detection, comprising: the head die comprises a head die shell, a base, a control system and a motion mechanism;
The appearance of the head model shell is the appearance of a human head and neck, and is provided with a head and a neck; the head die shell is internally provided with a hollow cavity; the neck part of the head die shell is fixedly connected with the base; a fixed support is arranged on the base and is positioned in the cavity; the motion mechanism is arranged in the cavity;
The head die shell is made of a silica gel material, and the Shore hardness of the silica gel material is 10 HA;
the motion mechanism comprises a nodding mechanism, a shaking mechanism and an opening and closing mechanism;
The head nodding mechanism comprises a first motor and a first crank connecting rod mechanism driven by the first motor, the first motor is fixedly arranged on the fixed support, the first crank connecting rod mechanism is connected with the inner wall of the face of the head die shell, and the first motor drives the first crank connecting rod mechanism to move up and down in the vertical direction so that the first crank connecting rod mechanism drives the head to move up and down;
the oscillating mechanism comprises a second motor, a driving gear driven by the second motor and a fixed gear meshed with the driving gear; the second motor is fixedly arranged on the fixed support, and the fixed gear is connected with the inner wall of the neck of the head die shell; the second motor drives the driving gear to rotate in a horizontal plane, and the driving gear drives the fixed gear to rotate in the horizontal plane so that the head of the head die shell rotates in the horizontal plane relative to the base;
The opening and closing mechanism comprises a third motor and a third crank connecting rod mechanism driven by the third motor, the third motor is fixedly installed on the fixed support, the third crank connecting rod mechanism is connected with the inner wall of the lower jaw of the head part of the head die shell, and the third motor drives the third crank connecting rod mechanism to move up and down in the vertical direction so that the third crank connecting rod mechanism drives the lower lip of the head part to move up and down;
The control system is respectively electrically connected with the first motor, the second motor and the third motor and is used for controlling and adjusting the working states of the first motor, the second motor and the third motor;
The head of the head die shell is provided with an oral-nasal cavity pipeline which is used for being connected with a breathing simulator.
2. The artificial intelligence simulation headform of claim 1, wherein the first crank linkage is connected to the interior facial wall of the headform housing head by a facial support, the facial support being connected to at least the forehead portion and the chin portion of the headform housing head.
3. The artificial intelligence simulation head model of claim 1, wherein the first crank link mechanism comprises a first rod, a second rod, and a third rod; one end of the first rod is connected with the first motor, and the other end of the first rod is pivoted with one end of the second rod; one end of the third rod is connected with the inner wall of the face of the head die shell, and the other end of the third rod is pivoted with the fixed support; the other end of the second rod is pivoted with the part between the two ends of the third rod. And the first motor drives the first rod, the second rod and the third rod to move in a vertical plane when operating.
4. the artificial intelligence simulation head die of claim 1, wherein the first motor is a dc servo motor.
5. The artificial intelligence simulation head model of claim 1, wherein the angle range of the upward and downward movement of the head part driven by the nodding mechanism is 0-60 °.
6. The artificial intelligence simulation headform of claim 1, wherein the fixed gear is connected to the neck interior wall of the headform housing by a fixed disk; the fixed gear is fixedly connected with the fixed disc; the inner wall of the neck of the head die shell is provided with a limiting part, and the limiting part is clamped with the fixed disk to fix the fixed disk with the inner wall of the neck of the head die shell.
7. the artificial intelligence simulation headform of claim 1, wherein the base embeds a headform control system, supports the headform housing and connects with a motion mechanism inside the headform housing to form an integrated artificial intelligence simulation headform.
8. The artificial intelligence simulation head model of claim 1, wherein the second motor is a stepper motor.
9. the artificial intelligence simulation head model of claim 1, wherein the head shaking mechanism makes the head of the head model shell rotate in the horizontal plane in the angle range of 0-45 degrees on the left and right sides relative to the base.
10. the artificial intelligence simulation head model of claim 1, wherein the third crank-link mechanism comprises a fourth rod, a fifth rod, and a sixth rod; one end of the fourth rod is connected with the third motor, and the other end of the fourth rod is pivoted with one end of the fifth rod; the other end of the fifth rod is pivoted with one end of the sixth rod, and the other end of the sixth rod is connected with the inner wall of the lower lip part of the head die shell; and the part between the two ends of the sixth rod is pivoted with the fixed bracket.
11. the artificial intelligence simulation head die of claim 1, wherein the third motor is a dc servo motor.
12. The artificial intelligence simulation head die of claim 1, wherein the angle range of the opening and closing mechanism of the mouth part driving the lower lip part of the head part to move up and down is 0-30 degrees.
13. the artificial intelligence simulation head model of claim 1, wherein the control system comprises a control circuit board; the control circuit board is arranged in the head die shell and is electrically connected with the first motor, the second motor and the third motor.
14. The artificial intelligence simulation head model of claim 1, wherein the control system includes a display; the display is used for displaying the working state of the head die.
15. The artificial intelligence simulation head model of claim 1, wherein the control system includes a control panel for inputting and adjusting control signals for the head model.
16. The artificial intelligence simulation head model of claim 1, wherein the control system comprises a wireless signal receiver, the wireless signal receiver being connected to the control circuit board; and the wireless signal receiver is responsible for receiving the control signal and transmitting the control signal to the control circuit board.
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