CN111706365A - Mine protection network with environmental protection performance - Google Patents
Mine protection network with environmental protection performance Download PDFInfo
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- CN111706365A CN111706365A CN202010560292.XA CN202010560292A CN111706365A CN 111706365 A CN111706365 A CN 111706365A CN 202010560292 A CN202010560292 A CN 202010560292A CN 111706365 A CN111706365 A CN 111706365A
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- 230000007613 environmental effect Effects 0.000 title claims description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 50
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims description 39
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 30
- 238000013527 convolutional neural network Methods 0.000 claims description 15
- 239000004568 cement Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 13
- 239000011435 rock Substances 0.000 claims description 12
- 238000005728 strengthening Methods 0.000 claims description 11
- 239000004814 polyurethane Substances 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 7
- 231100001261 hazardous Toxicity 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000010606 normalization Methods 0.000 claims description 6
- 238000012549 training Methods 0.000 claims description 4
- 101150096839 Fcmr gene Proteins 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000002372 labelling Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000017105 transposition Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000000498 stratum granulosum Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
- G06F18/213—Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods
- G06F18/2135—Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods based on approximation criteria, e.g. principal component analysis
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
- G06F18/214—Generating training patterns; Bootstrap methods, e.g. bagging or boosting
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- G—PHYSICS
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
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Abstract
The invention discloses an environment-friendly mine protective net which comprises a frame body, a connecting block and a protective net, wherein the corner positions of the frame body are fixedly connected with the connecting block, splicing mechanisms are arranged on two sides of the connecting block, the protective net is arranged in the frame body, a connecting piece is arranged in the center of the protective net through a fixing stud, one end of the connecting piece is fixedly connected with a supporting frame, the other end of the supporting frame is fixedly connected with an arc-shaped plate, the arc-shaped plate is fixedly connected with the surface of the frame body through a fixing screw, a reinforcing structure is arranged in the frame body, and an anti-seepage structure is smeared on the surface of the frame body. The mine protective net has the advantages that the mine protective net is convenient to splice when in use, the water seepage prevention function of the mine protective net is enhanced when in use, and the light degree of the mine protective net is realized when in use.
Description
Technical Field
The invention relates to the technical field of mine protective nets, in particular to a mine protective net with environmental protection performance.
Background
Along with the continuous development of society, people also attach attention to the protection of environment along with it is continuous, wherein the mine needs to use the mine protection network when the protection, and this type of mine protection network on the market is various today, can satisfy people's user demand basically, but still has certain problem:
traditional this type of mine protection network is because its inconvenient assembly when using for its inconvenient dismouting of protection network when using, makes it bring very big trouble for the user when using.
Disclosure of Invention
The invention aims to provide an environment-friendly mine protection net to solve the problem that the device proposed in the background technology is inconvenient to assemble.
In order to achieve the purpose, the invention provides the following technical scheme: a mine protective net with environmental protection performance comprises a frame body, a connecting block and a protective net, wherein the corner position of the frame body is fixedly connected with the connecting block, and two sides of the connecting block are provided with splicing mechanisms which comprise a clamping block, a clamping spring, a push rod, an inner cavity, a slide rail and a slide block, the inner part of the inner cavity is provided with the clamping block, one end of the clamping block extends to the outside of the inner cavity, one end of the inner cavity is fixedly connected with the clamping spring, one side of the inner cavity is provided with the push rod, one end of the push rod extends to the inside of the inner cavity and is fixedly connected with the surface of the clamping block, the inner part of the connecting block at two sides of the inner cavity is provided with the slide rail, two sides of the bottom end of the push rod are fixedly connected with the slide block, two sides of the surface of the connecting block, and the central point of protection network puts the department and installs the connecting piece through fixing stud, the all fixedly connected with support frames of one end of connecting piece, the all fixedly connected with arcs of the other end of support frame, and the arc all is connected through the fixed surface of set screw with the framework, the inside of framework is provided with additional strengthening, the prevention of seepage water structure has been paintd on the surface of framework.
Preferably, the one end that the joint piece was kept away from to the joint spring all with the lateral wall fixed connection of inner chamber, the joint spring is the screw thread form design.
Preferably, the outer diameters of the sliding blocks are smaller than the inner diameter of the sliding rail, and a sliding structure is formed between the sliding rail and the sliding block.
Preferably, the support frame is in a radial design in the protective net, and the arc-shaped plate is in an arc-shaped design.
Preferably, the additional strengthening includes vertical strengthening rib, strengthens grained layer and horizontal strengthening rib, strengthen the equidistant vertical strengthening rib of inside fixedly connected with of grained layer, and the winding has horizontal strengthening rib between the adjacent vertical strengthening rib.
Preferably, the water seepage prevention structure comprises a toluene layer, a cement base layer and a polyurethane layer, wherein the toluene layer is arranged on one side of the cement base layer, and the polyurethane layer is arranged on the other side of the cement base layer.
Preferably, whether the environment where the mine protection net is located is safe is detected based on an image detection technology, and the detecting step includes:
utilizing an external camera to shoot images with or without rock burst, flying rocks, avalanche and debris flow in the environment for image data acquisition, and constructing an image data set based on the acquired image data;
performing image enhancement processing on each image in the acquired image data set based on an image enhancement technology to acquire an image data set after image enhancement, wherein the image enhancement comprises the following steps: denoising the image, smoothing the image, and improving any one or more types of image contrast and image exposure;
labeling a category label for each image in the image data set after image enhancement by using labeling software to obtain a labeled image data set, wherein the category label comprises: a hazardous category, a non-hazardous category;
sending the marked image data set into a convolutional neural network model for model training to obtain a trained convolutional neural network model;
deploying the trained convolutional neural network model on a server, wherein the server is connected with the external camera;
the server is used for acquiring images of the environment where the mine protection net is located, guiding the acquired images into the trained convolutional neural network model for recognition, when the output result is that the environment where the mine protection net is located does not obtain a detection result through the external camera, detecting no rockfall, flying rocks, avalanche and debris flow in the environment, not giving an alarm based on the alarm arranged on the mine protection net, and when the output result is that the environment where the mine protection net is located obtains the detection result through the external camera, detecting the rockfall, flying rocks, avalanche or debris flow in the environment, and giving an alarm based on the alarm arranged on the mine protection net.
Preferably, the type of the protective net is selected, and the specific steps are as follows:
step A1, obtaining data indexes corresponding to relevant factors according to relevant factors of heat dissipation, stability, processability, high temperature resistance, production cycle, fireproof air permeability and production cost of a protective net through existing data and experiments, and digitizing the data indexes to obtain a corresponding index data matrix Y:
wherein, bstThe value corresponding to the t-th type of protective net representing the s-th data index is 1,2,3, where s, j, t is 1,2,3, n, j represents the number of data indexes, and n represents the type number of protective nets;
step A2, Standard normalization of the step A1 data matrix Y, for each bstWill be normalized to
So as to obtain the labeled normalized matrix Y*To obtain the correlation of the indices between the new matrices, the covariance matrix is found according to the following equation:
wherein C represents a covariance matrix and T represents the transposition of the matrix;
step A3, calculating the eigenvalue of the covariance matrix C and the eigenvector corresponding to the eigenvalue according to the following formula:
|C-λE|*x＝0
wherein C represents a covariance matrix, E represents an identity matrix, x represents a characteristic vector, and lambda represents a characteristic value;
step A4, sorting the eigenvalues lambda from small to large, selecting the eigenvectors x corresponding to the first k eigenvalues and the matrix Y obtained after standard normalization in step A2*Matrix multiplication is carried out to obtain an index data matrix Y after dimension reduction*”Where k is less than j, when the index data matrix Y*”The type of the protective net corresponding to the index data in the first row is the final type;
step a5, after the final type is obtained, the protection net corresponding to the final type is arranged inside the frame.
Compared with the prior art, the invention has the beneficial effects that: the mine protective net with the environmental protection performance not only realizes the function of convenient splicing when the mine protective net is used, strengthens the function of water seepage prevention when the mine protective net is used, but also realizes the lightness when the mine protective net is used;
(1) the clamping blocks can be pushed into the inner cavity by pushing the push rod, the adjacent frame bodies are spliced at the moment, the clamping blocks and the grooves on the surfaces of the connecting blocks are aligned with each other, and then the push rod is loosened, and the frame bodies are spliced under the elastic action of the clamping springs, so that the function of splicing the mine protective net conveniently when in use is realized, and the convenience degree of the mine protective net when in use is improved;
(2) the water seepage prevention structure can avoid the phenomenon of water seepage in the frame body when the frame body is used by mixing the toluene layer, the cement base layer and the polyurethane layer and then coating the mixture on the surface of the frame body, so that the frame body is protected to a certain extent, the phenomenon of rust on the frame body when the frame body is used is avoided, the water seepage prevention function of the mine protection net is enhanced when the mine protection net is used, and the practicability of the mine protection net is improved when the mine protection net is used;
(3) strengthen the bulk strength that the stratum granulosum can strengthen the framework during use, and vertical strengthening rib then can avoid the framework surface to receive the power and concentrate, this very big phenomenon that the framework is reduced appears when using, horizontal strengthening rib can increase the bearing capacity of vertical strengthening rib simultaneously, thereby the use strength of framework has been strengthened to the side, the bulk strength of protection network can be strengthened with the support frame to the connecting piece on protection network surface simultaneously, avoid the protection network the incident of surface damage to appear when using, slight when having realized this mine protection network use, thereby the life of this mine protection network has been prolonged.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged partial cross-sectional view of the splicing mechanism of the present invention;
FIG. 3 is an enlarged side view of the frame of the present invention;
fig. 4 is a schematic view of the enlarged structure of a part a in fig. 1 according to the present invention.
In the figure: 1. a frame body; 2. connecting blocks; 3. a splicing mechanism; 301. a clamping block; 302. clamping a spring; 303. a push rod; 304. an inner cavity; 305. a slide rail; 306. a slider; 4. a protective net; 401. fixing the stud; 402. a connecting member; 5. a support frame; 6. an arc-shaped plate; 7. a groove; 8. a reinforcing structure; 801. a vertical reinforcing rib; 802. reinforcing the particulate layer; 803. transverse reinforcing ribs; 9. a water seepage prevention structure; 901. a toluene layer; 902. a cement base layer; 903. a polyurethane layer; 10. and fixing the screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown: a mine protective net with environmental protection performance comprises a frame body 1, connecting blocks 2 and a protective net 4, wherein the connecting blocks 2 are fixedly connected at the corner positions of the frame body 1, and the splicing mechanisms 3 are arranged on both sides of the connecting block 2, the splicing mechanisms 3 comprise clamping blocks 301, clamping springs 302, push rods 303, inner cavities 304, slide rails 305 and slide blocks 306, the clamping blocks 301 are arranged inside the inner cavities 304, one end of the clamping block 301 extends to the outside of the inner cavity 304, one end of the inner cavity 304 is fixedly connected with a clamping spring 302, one side of the inner cavity 304 is provided with a push rod 303, one end of the push rod 303 extends into the inner cavity 304 and is fixedly connected with the surface of the clamping block 301, slide rails 305 are arranged inside the connecting blocks 2 on the two sides of the inner cavity 304, slide blocks 306 are fixedly connected on the two sides of the bottom end of the push rod 303, and grooves 7 clamped with the clamping block 301 are arranged on the two sides of the surface of the connecting block 2;
when the clamping mechanism is used, firstly, the push rod 303 is pushed to push the clamping block 301 to the inner part of the inner cavity 304, the frame body 1 is spliced, so that the clamping block 301 and the groove 7 on the surface of the connecting block 2 are aligned, and then the push rod 303 is loosened, and the frame body 1 is spliced under the elastic action of the clamping spring 302;
a protective net 4 is arranged inside the frame body 1, a connecting piece 402 is arranged at the center of the protective net 4 through a fixing stud 401, and one end of the connecting piece 402 is fixedly connected with a support frame 5;
the supporting frame 5 is in a radial design in the protective net 4, and the arc-shaped plate 6 is in an arc-shaped design, so that the supporting frame 5 and the surface of the frame body 1 are conveniently fixed;
the other end of the support frame 5 is fixedly connected with an arc-shaped plate 6, the arc-shaped plate 6 is fixedly connected with the surface of the frame body 1 through a fixing screw 10, and a reinforcing structure 8 is arranged inside the frame body 1;
when the mechanism is used, firstly, the reinforced granular layer 802 can reinforce the overall strength of the frame body 1, the vertical reinforcing ribs 801 can avoid the surface of the frame body 1 from being concentrated in force, the phenomenon that the frame body 1 is broken and damaged in use is greatly avoided, meanwhile, the bearing capacity of the vertical reinforcing ribs 801 can be increased by the transverse reinforcing ribs 803, and therefore the use strength of the frame body 1 is enhanced laterally;
The working principle is as follows: when the mine protective net is used, firstly, the frame bodies 1 are placed at a specified position, then the push rods 303 are pushed to push the clamping blocks 301 to the inner part of the inner cavity 304, at the moment, the adjacent frame bodies 1 are spliced, so that the clamping blocks 301 are aligned with the grooves 7 on the surfaces of the connecting blocks 2, then the push rods 303 are loosened, and under the elastic action of the clamping springs 302, the frame bodies 1 are spliced;
secondly, the reinforced particle layer 802 can reinforce the overall strength of the frame body 1, the vertical reinforcing ribs 801 can prevent the surface of the frame body 1 from being concentrated in force, the frame body 1 is greatly prevented from being broken in use, meanwhile, the bearing capacity of the vertical reinforcing ribs 801 can be increased by the transverse reinforcing ribs 803, so that the use strength of the frame body 1 is reinforced laterally, meanwhile, the connecting piece 402 on the surface of the protective net 4 and the support frame 5 can reinforce the overall strength of the protective net 4, and the protective net 4 is prevented from being damaged in use;
and finally, the toluene layer 901, the cement base layer 902 and the polyurethane layer 903 are mixed and then coated on the surface of the frame body 1, and the seepage-proof structure 9 can avoid the phenomenon that the inside of the frame body 1 seeps water when the frame body 1 is used, so that the frame body 1 is protected to a certain extent, the phenomenon that the frame body 1 rusts when in use is avoided, and the mine protection net is finally completed.
Whether the environment where the mine protection net is located is safe is detected based on an image detection technology, and the detection steps comprise:
utilizing an external camera to shoot images with or without rock burst, flying rocks, avalanche and debris flow in the environment for image data acquisition, and constructing an image data set based on the acquired image data;
performing image enhancement processing on each image in the acquired image data set based on an image enhancement technology to acquire an image data set after image enhancement, wherein the image enhancement comprises the following steps: denoising the image, smoothing the image, and improving any one or more types of image contrast and image exposure;
labeling a category label for each image in the image data set after image enhancement by using labeling software to obtain a labeled image data set, wherein the category label comprises: a hazardous category, a non-hazardous category;
sending the marked image data set into a convolutional neural network model for model training to obtain a trained convolutional neural network model;
deploying the trained convolutional neural network model on a server, wherein the server is connected with the external camera;
the server is used for acquiring images of the environment where the mine protection net is located, guiding the acquired images into the trained convolutional neural network model for recognition, when the output result is that the environment where the mine protection net is located does not obtain a detection result through the external camera, detecting no rockfall, flying rocks, avalanche and debris flow in the environment, not giving an alarm based on the alarm arranged on the mine protection net, and when the output result is that the environment where the mine protection net is located obtains the detection result through the external camera, detecting the rockfall, flying rocks, avalanche or debris flow in the environment, and giving an alarm based on the alarm arranged on the mine protection net.
The beneficial effects of the above technical scheme are: the method comprises the steps of training a convolutional neural network model by carrying out image acquisition and image enhancement and category marking on the working environment where the mine protection net is located, enabling the convolutional neural network model to recognize image category information, carrying out convolutional neural network model detection on an image to be detected, and facilitating effective detection whether rockfall, flyrock, avalanche and debris flow exist in the working environment where the mine protection net is located, and facilitating effective alarm sending, further effectively reminding residents and preventing life from being damaged.
The type of the protective net is selected, and the specific steps are as follows:
step A1, obtaining data indexes corresponding to relevant factors according to relevant factors of heat dissipation, stability, processability, high temperature resistance, production cycle, fireproof air permeability and production cost of a protective net through existing data and experiments, and digitizing the data indexes to obtain a corresponding index data matrix Y:
wherein, bstThe value corresponding to the t-th type of protective net representing the s-th data index is 1,2,3, where s, j, t is 1,2,3, n, j represents the number of data indexes, and n represents the type number of protective nets;
step A2, Standard normalization of the step A1 data matrix Y, for each bstWill be normalized to
So as to obtain the labeled normalized matrix Y*To obtain the correlation of the indices between the new matrices, the covariance matrix is found according to the following equation:
wherein C represents a covariance matrix and T represents the transposition of the matrix;
step A3, calculating the eigenvalue of the covariance matrix C and the eigenvector corresponding to the eigenvalue according to the following formula:
|C-λE|*x＝0
wherein C represents a covariance matrix, E represents an identity matrix, x represents a characteristic vector, and lambda represents a characteristic value;
step A4, sorting the eigenvalues lambda from small to large, selecting the eigenvectors x corresponding to the first k eigenvalues and the matrix Y obtained after standard normalization in step A2*Matrix multiplication is carried out to obtain an index data matrix Y after dimension reduction*”Where k is less than j, when the index data matrix Y*”The type of the protective net corresponding to the index data in the first row is the final type;
in step a5, after the final type is obtained, the protection net 4 corresponding to the final type is set inside the frame 1.
The beneficial effects of the above technical scheme are: in order to select a better protective net, in the process of selecting the protective net, a large number of indexes are selected as standards, so that the results are considered from multiple aspects and are comprehensively considered, meanwhile, the indexes are selected by using corresponding formulas instead of subjective feeling selection, so that the selection is convincing, and through dimension reduction of the indexes, the indexes are selected, so that a more excellent protective net can be selected as the final protective net type.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a mine protection network with environmental protection performance, includes framework (1), connecting block (2) and protection network (4), its characterized in that: the corner position of the frame body (1) is fixedly connected with a connecting block (2), the two sides of the connecting block (2) are provided with splicing mechanisms (3), each splicing mechanism (3) comprises a clamping block (301), a clamping spring (302), a push rod (303), an inner cavity (304), a sliding rail (305) and a sliding block (306), the clamping blocks (301) are arranged in the inner cavity (304), one ends of the clamping blocks (301) extend to the outside of the inner cavity (304), one ends of the inner cavity (304) are fixedly connected with the clamping springs (302), the push rod (303) is arranged on one side of the inner cavity (304), one ends of the push rods (303) extend to the inside of the inner cavity (304) and are fixedly connected with the surface of the clamping blocks (301), the sliding rails (305) are arranged in the connecting blocks (2) on the two sides of the inner cavity (304), the sliding blocks (306) are fixedly connected with the two sides of the bottom end of the push rod (303, the utility model discloses a joint structure, including connecting block (2), connecting block (1), connecting piece (301), connecting piece (402), connecting piece (1), fixed screw (10) and frame (1), the both sides on connecting block (2) surface all are provided with recess (7) with joint piece (301) looks joint, the inside of frame (1) is provided with protection network (4), and the central point of protection network (4) puts the department and installs connecting piece (402) through fixing stud (401), the equal fixedly connected with support frame (5) of one end of connecting piece (402), the equal fixedly connected with arc (6) of the other end of support frame (5), and arc (6) all are connected through the fixed surface of fixed screw (10) and frame (1), the inside of frame (1) is provided with additional strengthening (8).
2. The mine protection net with environmental protection performance according to claim 1, characterized in that: one end, far away from the clamping block (301), of the clamping spring (302) is fixedly connected with the side wall of the inner cavity (304), and the clamping spring (302) is designed in a thread shape.
3. The mine protection net with environmental protection performance according to claim 1, characterized in that: the outer diameters of the sliding blocks (306) are smaller than the inner diameter of the sliding rail (305), and a sliding structure is formed between the sliding rail (305) and the sliding blocks (306).
4. The mine protection net with environmental protection performance according to claim 1, characterized in that: the supporting frame (5) is in a radial design in the protective net (4), and the arc-shaped plate (6) is in an arc-shaped design.
5. The mine protection net with environmental protection performance according to claim 1, characterized in that: the reinforced structure (8) comprises vertical reinforcing ribs (801), a reinforced particle layer (802) and transverse reinforcing ribs (803), wherein the reinforced particle layer (802) is fixedly connected with the vertical reinforcing ribs (801) at equal intervals in the inner part, and the transverse reinforcing ribs (803) are wound between the adjacent vertical reinforcing ribs (801).
6. The mine protection net with environmental protection performance according to claim 1, characterized in that: the seepage-proofing structure (9) comprises a toluene layer (901), a cement base layer (902) and a polyurethane layer (903), wherein the toluene layer (901) is arranged on one side of the cement base layer (902), and the polyurethane layer (903) is arranged on the other side of the cement base layer (902).
7. The mine protection net with environmental protection performance according to claim 1, characterized in that: further comprising: whether the environment where the mine protection net is located is safe is detected based on an image detection technology, and the detection steps comprise:
utilizing an external camera to shoot images with or without rock burst, flying rocks, avalanche and debris flow in the environment for image data acquisition, and constructing an image data set based on the acquired image data;
performing image enhancement processing on each image in the acquired image data set based on an image enhancement technology to acquire an image data set after image enhancement, wherein the image enhancement comprises the following steps: denoising the image, smoothing the image, and improving any one or more types of image contrast and image exposure;
labeling a category label for each image in the image data set after image enhancement by using labeling software to obtain a labeled image data set, wherein the category label comprises: a hazardous category, a non-hazardous category;
sending the marked image data set into a convolutional neural network model for model training to obtain a trained convolutional neural network model;
deploying the trained convolutional neural network model on a server, wherein the server is connected with the external camera;
the server is used for acquiring images of the environment where the mine protection net is located, guiding the acquired images into the trained convolutional neural network model for recognition, when the output result is that the environment where the mine protection net is located does not obtain a detection result through the external camera, detecting no rockfall, flying rocks, avalanche and debris flow in the environment, not giving an alarm based on the alarm arranged on the mine protection net, and when the output result is that the environment where the mine protection net is located obtains the detection result through the external camera, detecting the rockfall, flying rocks, avalanche or debris flow in the environment, and giving an alarm based on the alarm arranged on the mine protection net.
8. The mine protection net with environmental protection performance according to claim 1, characterized in that: the type of the protective net (4) is selected, and the specific steps are as follows:
step A1, obtaining data indexes corresponding to relevant factors according to relevant factors of heat dissipation, stability, machinability, high temperature resistance, production cycle, fireproof air permeability and production cost of the protective net (4) through existing data and experiments, and digitizing the data indexes to obtain a corresponding index data matrix Y:
wherein, bstThe value corresponding to the t-th type protective net (4) representing the s-th data index is 1,2,3, a, j, t 1,2,3, n, j represents the number of the data indexes, and n represents the type number of the protective net (4);
step A2, Standard normalization of the step A1 data matrix Y, for each bstWill be normalized to
So as to obtain the labeled normalized matrix Y*To obtain the correlation of the indices between the new matrices, the covariance matrix is found according to the following equation:
wherein C represents a covariance matrix and T represents the transposition of the matrix;
step A3, calculating the eigenvalue of the covariance matrix C and the eigenvector corresponding to the eigenvalue according to the following formula:
|C-λE|*x＝0
wherein C represents a covariance matrix, E represents an identity matrix, x represents a characteristic vector, and lambda represents a characteristic value;
step A4, sorting the eigenvalues lambda from small to large, selecting the eigenvectors x corresponding to the first k eigenvalues and the matrix Y obtained after standard normalization in step A2*Matrix multiplication is carried out to obtain an index data matrix after dimension reduction
Where k is less than j, when the index data matrix
The type of the protective net (4) corresponding to the index data of the first row in the system is the final type;
and A5, after the final type is obtained, arranging the protective net (4) corresponding to the final type in the frame body (1).
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