An intelligent monitoring-based modular horizontal connection system and method for steel structures

Abstract

The present invention provides a modular horizontal connection system and method for steel structures based on intelligent monitoring, belonging to the technical field of steel structures. It includes a connection block and a steel column. The connection block includes an outer frame and a cover plate. A support member is arranged between the outer frame and the cover plate. The support member includes a hydraulic cylinder and a telescopic rod. The hydraulic cylinder is sleeved outside the telescopic rod. A connecting member for connecting the steel column is arranged inside the outer frame. The connecting member includes a rotating column, a motor, an arc-shaped blade, and a connecting column. The rotating column is arranged at the output end of the motor. The arc-shaped blade is arranged outside the rotating column. The connecting column is arranged inside the arc-shaped blade. An extension plate is welded to the inner end of the steel column. The monitoring platform is used to monitor and control the connection work between the connection block and the steel column, solving the problems of inconvenient disassembly and assembly of the traditional steel structure connection method, inability to be reused, inability to timely monitor the usage of the connection part, and relatively low safety factor.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel structures, and more specifically, relates to a modular horizontal connection system and method for steel structures based on intelligent monitoring. Background Art

[0002] In building structures, steel structure connections are very common. Most of the existing connection methods are bolt fixed connections and welding. When using bolt fixed connections, bolt loosening is likely to occur during use, and installation and disassembly are difficult, seriously affecting the safety and convenience of use; when using welding connections, each component is connected into one body, which can ensure the connection strength, but it is a non-detachable connection, resulting in a large waste of steel structure materials. Moreover, traditional connection methods lack effective monitoring means and cannot real-time grasp the state of the connection part, such as parameters like stress and displacement. Once an abnormal situation occurs, it is difficult to detect and handle in time, posing a safety hazard. Therefore, a modular horizontal connection system and method for steel structures based on intelligent monitoring are designed. Summary of the Invention

[0003] An embodiment of the present invention provides a modular horizontal connection system and method for steel structures based on intelligent monitoring, which solves the problems of the traditional steel structure connection method being difficult to disassemble and assemble, not being reusable, not being able to timely monitor the usage of the connection part, and having a low safety factor.

[0004] In view of the above problems, the technical solution proposed by the present invention is:

[0005] The present invention provides a modular horizontal connection system for steel structures based on intelligent monitoring, including a connection block and a steel column. The connection block includes an outer frame and a cover plate. A support member is arranged between the outer frame and the cover plate. The support member includes a hydraulic cylinder and a telescopic rod, and the hydraulic cylinder is sleeved outside the telescopic rod.

[0006] A connecting member for connecting the steel column is arranged inside the outer frame. The connecting member includes a rotating column, a motor, an arc-shaped blade, and a connecting column. The rotating column is arranged at the output end of the motor, the arc-shaped blade is arranged outside the rotating column, and the connecting column is arranged inside the arc-shaped blade.

[0007] An extension plate is welded to the inner end of the steel column, and three-dimensional mesh structures made of Ni-Ti alloy wires are embedded on the surfaces of the extension plate and the arc-shaped blade.

[0008] A monitoring platform is used to monitor and control the connection work between the connection block and the steel column, including an induction module for inducing the working state of the connection block.

[0009] A positioning module, using a diamond NV color center chip to perform real-time positioning of the connection block and the steel column;

[0010] A distributed monitoring network is formed by spraying graphene conductive ink on the surface of the connecting block and the steel column to form a distributed strain monitoring network;

[0011] Digital twin module, which generates a 3D model of the steel structure based on monitoring data;

[0012] The predictive analysis module uses machine learning models to predict the probability of failure of steel structure connections.

[0013] As a preferred technical solution of the present invention, the ends of the hydraulic cylinder and the telescopic rod are fixed with connecting heads, the hydraulic cylinder is connected to the outer frame screws through the connecting heads, a connecting plate is arranged between the connecting head on the telescopic rod and the cover plate, the connecting plate is rotatably connected to the connecting head, and the connecting plate is screwed to the cover plate.

[0014] As a preferred technical solution of the present invention, the output end of the motor is transmission-connected to the rotating column, at least two of the arc-shaped blades are fixed to the outside of the rotating column, the clamping hole is designed as a through hole, the arc-shaped blade passes through the extension plate through the clamping hole, the clamping hole and the connecting hole are staggered, the connecting hole is a blind hole, and the bottom of the connecting hole is a stress-releasing micro-pit.

[0015] As a preferred technical solution of the present invention, the clamping hole and the connecting hole are both processed by electropolishing, the connecting column is arranged near the midpoint of the arc-shaped blade, a protruding block is arranged at the front end of the connecting column, a clamping plate adapted to the protruding block is arranged inside the connecting hole, a spring is arranged at the rear end of the protruding block, and the two ends of the spring are respectively fixedly connected to the arc-shaped blade and the protruding block, two clamping plates are arranged in the connecting hole, a rotating end is arranged at the end of the clamping plate, a threaded rod is arranged between the rotating end and the inner wall of the connecting hole, the threaded rod passes through the rotating end and is threadedly matched with the rotating end, and the connecting column and the protruding block are both designed with rubber.

[0016] As a preferred technical solution of the present invention, cavities for installing electronic components are provided inside the steel column and the rotating column. Electrical components connected to the three-dimensional network structure of the Ni-Ti alloy wire are provided inside both the steel column and the rotating column. The electrical components include a power supply, a wire, a switch, a fuse, and a temperature sensor. One end of the positive electrode of the power supply is connected to one end of the switch through a wire, the other end of the switch is connected to one end of the fuse, the other end of the fuse is connected to one end of the three-dimensional network structure of the Ni-Ti alloy wire, the other end of the three-dimensional network structure of the Ni-Ti alloy wire is connected to the output end of the controller, the input end of the controller is connected to the temperature sensor, and the other end of the temperature sensor is connected to the negative electrode of the power supply to form a loop.

[0017] As a preferred technical solution of the present invention, the detailed steps for the positioning module to perform positioning include:

[0018] Step a: According to the steel structure design drawing, determine the key connection points where chips need to be implanted. Use a special tool to implant the diamond NV color center chip into the steel structure, and fix the chip with epoxy resin or other fixing materials.

[0019] Step b: Arrange UWB ultra-wideband devices around the structure to form a positioning network covering the entire structure, and connect the UWB devices to the monitoring platform.

[0020] Step c: Start the diamond NV color center chip, real-time monitor the geomagnetic field disturbance, transmit the positioning data to the monitoring platform in real time through UWB technology, and the monitoring platform stores, processes, and analyzes the positioning data to generate spatial positioning information.

[0021] The detailed steps for establishing the distributed monitoring network module include:

[0022] Use a spraying device to evenly spray graphene conductive ink on the surface of the steel structure. After spraying, wait for the ink to dry to form a stable conductive layer, and install quantum chips at all key connection nodes of the steel structure. Connect the quantum chips to the monitoring network formed by the graphene conductive ink, and connect the quantum chips wirelessly to form a distributed magnetic field network. The quantum chips generate a distributed magnetic field through interaction, and the state change of the steel structure is reflected by the magnetic field intensity and distribution.

[0023] On the other hand, a method for a modular horizontal connection system of a steel structure based on intelligent monitoring includes the following steps:

[0024] S1. First, embed a three-dimensional network structure made of Ni-Ti alloy wire into the joint surface of the extension plate and the arc-shaped blade. Spray graphene conductive ink on the surfaces of the steel column and the connection block. Install the connecting piece and the support piece in the connection block. Align the steel column with the connection block to perform the connection of the steel structure;

[0025] S2. Meanwhile, close the switch through the controller to start the power supply and begin heating the alloy wire. Real-time monitor the temperature of the alloy wire through the temperature sensor. When the temperature reaches 40°C, the controller adjusts the power output to keep the temperature stable. After the alloy wire is heated to the phase transition temperature, it shrinks to perform the adaptive pressing of the extension plate and the arc-shaped blade;

[0026] S3. When connecting the connection block and the steel column, real-time monitor the connection state of the connecting piece through the induction module, convert it into an electrical signal and transmit it to the monitoring platform. Laser excites the quantum chip to generate NV center luminescence. The photodetector collects the photon signal. Use the known geomagnetic field model and the measured geomagnetic field perturbation data to calculate the position of the steel structure through a mathematical algorithm to adjust the connection position of the steel structure;

[0027] S4. Transmit the sensor data to the monitoring platform through wireless communication technology, preprocess the data, update the digital twin model of the steel structure in real time based on the collected data, reflect the current state and deformation of the structure, analyze the structure index according to the digital twin model, and evaluate the health state and remaining life of the structure;

[0028] S5. Input the preprocessed strain data, extract features through a convolutional neural network, output a strain nephogram, use a machine learning algorithm to predict the probability of connection failure, output the failure probability, analyze the change trend of the structure state, predict risks, and perform corresponding processing according to the prediction results.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] (1) The present invention realizes the rapid and non-destructive disassembly by the disassembly mechanism of the reverse rotation of the arc-shaped blade by the motor, pulling out the connecting column from the connection hole, and utilizes the phase change characteristics of the Ni-Ti alloy wire to realize the adaptive pressing of the extension plate and the arc-shaped blade, improving the stability and reliability of the connection;

[0031] (2) The present invention monitors the connection status and blade position in real time through sensors to ensure the accuracy and safety of the connection. It uses quantum chips and laser technology to monitor the changes in the geomagnetic field, accurately calculate the position of the steel structure, and provide data support for connection adjustment. Based on the real-time data, the digital twin model is updated to accurately reflect the current state and deformation of the structure. Machine learning methods are used to analyze the strain data and predict the probability of connection failure, realizing early warning and risk control. It integrates multi-field technologies such as materials science, sensor technology, and quantum technology, achieving the intelligence of steel structure connections.

[0032] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are specifically given below. Brief Description of the Drawings

[0033] Figure 1 is the disassembled structural schematic diagram of a modular horizontal connection system for steel structures based on intelligent monitoring disclosed by the present invention;

[0034] Figure 2 is the enlarged structural schematic diagram of part A of the disassembled structural schematic diagram of a modular horizontal connection system for steel structures based on intelligent monitoring disclosed by the present invention;

[0035] Figure 3 is the overall structural schematic diagram of the connecting piece of a modular horizontal connection system for steel structures based on intelligent monitoring disclosed by the present invention;

[0036] Figure 4 is the partial structural schematic diagram of the top view of a modular horizontal connection system for steel structures based on intelligent monitoring disclosed by the present invention;

[0037] Figure 5 is the power connection schematic diagram of the three-dimensional network structure of a modular horizontal connection system for steel structures based on intelligent monitoring disclosed by the present invention;

[0038] Figure 6 is the block diagram of the monitoring platform of a modular horizontal connection system for steel structures based on intelligent monitoring disclosed by the present invention;

[0039] Figure 7 is the schematic diagram of the method flow of a modular horizontal connection system for steel structures based on intelligent monitoring disclosed by the present invention;

[0040] Description of the reference numerals: 100, connection block; 101, outer frame; 102, cover plate;

[0041] 200. Support member; 201. Hydraulic cylinder; 202. Telescopic rod; 203. Connector; 204. Connection plate;

[0042] 300. Connector; 301. Rotating column; 302. Motor; 303. Arc-shaped blade; 304. Connection column; 305. Protruding block; 306. Spring;

[0043] 400. Steel column; 401. Extension plate; 402. Card hole; 403. Connection hole; 404. Clamping plate; 405. Rotating end;

[0044] 500. Monitoring platform; 501. Induction module; 5011. Hall sensor; 5012. Micro pressure sensor; 502. Positioning module; 503. Distributed monitoring network; 504. Digital twin module; 505. Prediction analysis module. Detailed implementation mode

[0045] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0049] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined. Embodiment

[0050] Referring to the attached Figures 1-6 As shown, the present invention provides a technical solution: a modular horizontal connection system for steel structures based on intelligent monitoring, including a connection block 100 and a steel column 400. The connection block 100 includes an outer frame 101 and a cover plate 102. A support member 200 is arranged between the outer frame 101 and the cover plate 102. The support member 200 includes a hydraulic cylinder 201 and a telescopic rod 202. The hydraulic cylinder 201 is sleeved outside the telescopic rod 202. Inside the outer frame 101, there is a connecting member 300 for connecting the steel column 400. The connecting member 300 includes a rotating column 301, a motor 302, an arc-shaped blade 303, and a connecting column 304. The rotating column 301 is arranged at the output end of the motor 302. The motor 302 is embedded in the inner bottom surface of the outer frame 101. The arc-shaped blade 303 is arranged outside the rotating column 301. The connecting column 304 is arranged inside the arc-shaped blade 303. An extension plate 401 is welded to the inner end of the steel column 400. A clamping hole 402 adapted to the arc-shaped blade 303 and a connecting hole 403 adapted to the connecting column 304 are formed on the surface of the extension plate 401. Three-dimensional network structures made of Ni-Ti alloy wires (phase change temperature 40°C) are embedded on the surfaces of the extension plate 401 and the arc-shaped blade 303. The three-dimensional network structures can increase the contact area between the material and the surfaces of the extension plate 401 and the arc-shaped blade 303, so as to more evenly distribute the shrinkage force and improve the pressing effect of the connection interface. At the same time, the network structure has a certain flexibility and adaptability, can compensate for the unevenness of the connection interface to a certain extent, enhance the reliability of the connection, and the shrinkage rate can reach 8% when heated by electricity, realizing the self-adaptive pressing of the connection interface;

[0051] A monitoring platform 500 is used to monitor and control the connection work between the connection block 100 and the steel column 400. The monitoring platform 500 includes an induction module 501. The induction module 501 is used to sense the working state of the connection block 100. The induction module 501 includes a Hall sensor 5011 arranged on the extension plate 401 and micro pressure sensors 5012 embedded on both sides of the arc-shaped blade 303;

[0052] The Hall sensor 5011 is used to detect whether the arc-shaped blade 303 is inserted in place, and the micro pressure sensor 5012 is used to monitor the contact pressure between the arc-shaped blade 303 and the extension plate 401. Double contacts are symmetrically arranged on both sides of the arc-shaped blade 303 to prevent single-point failure. When the extension plate 401 is inserted near the arc-shaped blade 303, the Hall sensor 5011 at the edge detects the approach of metal, triggering the start of each module, controlling the start of the motor 302, and driving the connecting piece 300 to make a connection. When the arc-shaped blade 303 enters the clamping hole 402 of the extension plate 401, the pressure sensor inside detects that the pressure value ≥ the threshold value, and it is determined that the locking is in place. The monitoring platform 500 immediately cuts off the power supply of the motor 302. If the locking is not completed within 20 seconds, the system alarms and reverses to exit. A polytetrafluoroethylene scraping blade is arranged on the surface of the Hall sensor 5011, and the surface dirt is automatically scraped off when the extension plate 401 is inserted;

[0053] The positioning module 502 uses a diamond NV center chip to perform real-time positioning on the connecting block 100 and the steel column 400. The diamond NV center chip is embedded inside the connecting block 100 and the steel column 400, and the diamond NV center chip uses UWB ultra-wideband technology to transmit the monitoring data to the monitoring platform 500;

[0054] The distributed monitoring network 503 forms a distributed strain monitoring network by spraying graphene conductive ink on the surfaces of the connecting block 100 and the steel column 400;

[0055] The digital twin module 504 uses digital twin technology to form a distributed magnetic field network with the quantum chips of all connection nodes, and generates a digital twin model of the steel structure in real time. The health state of the building structure is monitored in real time through the digital twin body. The monitoring indicators include stress, strain, displacement, etc. Thresholds are set, and when the monitoring indicators exceed the thresholds, early warnings are issued. The warning information includes the abnormal position, degree, possible reasons, etc.;

[0056] The prediction analysis module 505 uses a convolutional neural network to analyze the monitoring data and predict the probability of steel structure connection failure.

[0057] The embodiments of the present invention are also implemented through the following technical solutions.

[0058] In an embodiment of the present invention, connection heads 203 are fixed to the ends of the hydraulic cylinder 201 and the telescopic rod 202. The hydraulic cylinder 201 is screwed to the outer frame 101 through the connection head 203. The hydraulic cylinder 201 is installed on the outer frame 101 through the connection head 203. A connecting plate 204 is provided between the connection head 203 on the telescopic rod 202 and the cover plate 102. The connecting plate 204 is rotatably connected to the connection head 203, and the connecting plate 204 is screwed to the cover plate 102. The telescopic rod 202 is installed on the cover plate 102 through the connecting plate 204, and the angle of the connecting plate 204 relative to the connection head 203 is adjustable. According to the force point of the cover plate 102 and the rationality of the internal structure of the outer frame 101, the hydraulic cylinder 201 can be inclined, and the angle of the connecting plate 204 can be adjusted for adaptive installation.

[0059] Specifically, the connection head 203 and the connecting plate 204 are used to drive the telescopic rod 202 to lift and lower through the hydraulic cylinder 201, connect the outer frame 101 and the cover plate 102, and use hydraulic pressure to support the cover plate 102, so that the cover plate 102 can be stably maintained at the required position after being lifted, and the cover plate 102 will not fall off easily. The cooperation principle of the hydraulic cylinder 201 and the telescopic rod 202: The hydraulic cylinder 201 is integrated with components such as motors and pumps to reduce the overall volume and form a compact module. The hydraulic cylinder 201 is a cylindrical sleeve with a piston arranged inside the cylinder body, which fits tightly with the inner wall of the cylinder body. Sealing parts are used to prevent hydraulic oil leakage. The piston moves under the action of the pressure of the hydraulic oil. One end of the piston is connected with a piston rod, that is, the telescopic rod 202, which is usually made of high-strength alloy steel. The telescopic rod 202 extends out of the cylinder body through the sealing device at the front end of the cylinder body. The sealing device includes sealing parts at both ends of the cylinder body and sealing parts on the piston, which are used to prevent hydraulic oil leakage and foreign impurities from entering the inside of the cylinder body. When the hydraulic oil is pumped into the cylinder body, the piston is subjected to the acting force of the oil pressure and pushes the piston to move along the axis direction of the cylinder body. The movement of the piston drives the telescopic rod 202 to extend or retract from the cylinder body. The telescopic movement of the telescopic rod 202 is transmitted to the cover plate 102 to control the lifting and lowering of the cover plate 102, so that the cover plate 102 will not be easily opened and can support the cover plate 102.

[0060] Considering the volume problem of the support member 200, existing micro hydraulic devices can be directly selected, such as HSG series micro hydraulic cylinders 201, MG series compact hydraulic cylinders 201, TUFF-TORQ series small hydraulic cylinders 201, etc.

[0061] In an embodiment of the present invention, the output end of the motor 302 is in transmission connection with the rotating column 301. At least two arc-shaped blades 303 are fixed on the outer side of the rotating column 301. The rotating column 301, as a transmission component of the output end of the motor 302, transmits the rotational motion of the motor 302 to the arc-shaped blades 303. The card hole 402 is designed as a through hole. The arc-shaped blade 303 passes through the extension plate 401 through the card hole 402 and is movably connected to the extension plate 401. The size and shape of the card hole 402 match the cross-section of the arc-shaped blade 303 to ensure that the blade can pass through smoothly and remain stable. The connection between the arc-shaped blade 303 and the extension plate 401 is realized through the card hole 402. The card hole 402 and the connection hole 403 are arranged in a staggered manner. The extension plate 401 is provided with a card hole 402 and a connection hole 403 on its surface for cooperation with the arc-shaped blade 303 and the connection column 304. The connection hole 403 is a blind hole. The depth of the connection hole 403 is 5 cm ± 0.01 cm. There is a stress relief micro-pit at the bottom of the connection hole 403. The micro-pit is a hemispherical pit with a diameter of 0.1 cm. When the temperature change ΔT = 50 °C, the micro-pit compensates for the thermal deformation amount of 0.005 mm. It is located at the bottom of the connection hole 403 and is used to compensate for the thermal deformation amount. When the temperature changes, the micro-pit can absorb or release the thermal expansion or contraction of the material.

[0062] Specifically, the motor 302 provides rotational power, which is transmitted to the arc-shaped blades 303 on the outside through the rotating column 301. The rotational motion of the arc-shaped blades 303 is transmitted to the extension plate 401 through the connection column 304, realizing the transmission and conversion of power. The micro-pit design is used to absorb the thermal expansion or contraction of the material caused by temperature changes, maintaining the stability and precision of the connector 300.

[0063] In an embodiment of the present invention, both the card hole 402 and the connection hole 403 are processed by electrolytic polishing. Through electrolytic polishing, the surface quality is improved and friction is reduced. The connection column 304 is arranged near the midpoint of the arc-shaped blade 303. A protruding block 305 is arranged at the front end of the connection column 304. A clamping plate 404 adapted to the protruding block 305 is arranged inside the connection hole 403. The clamping plate 404 is arranged inside the connection hole 403 for fixing the connection column 304. A spring 306 is arranged at the rear end of the protruding block 305. Both ends of the spring 306 are fixedly connected to the arc-shaped blade 303 and the protruding block 305 respectively. The spring 306 provides elasticity and buffering, allowing a certain amount of expansion and deformation. The use of the spring 306 and rubber material provides elastic buffering, reducing impact and vibration, and protecting the connector 300 and the steel column 400. When the connector 300 is subjected to an external force, the spring 306 will deform, absorbing part of the impact force, thereby reducing the direct impact on the connector 300. The deformation of the spring 306 also provides a certain amount of expansion space, allowing the connector 300 to expand and contract within a certain range to adapt to temperature changes or the influence of other external factors. When the external force is removed, the spring 306 will return to its original state, and through its restoring force, it will push the connection column 304 back to the initial position to achieve elastic buffering. The use of the spring 306 improves the stability and reliability of the connector 300, enabling it to maintain a stable connection when subjected to impact or vibration. Two clamping plates 404 are arranged inside the connection hole 403. A rotating end 405 is arranged at the end of the clamping plate 404. A threaded rod is arranged between the rotating end 405 and the inner wall of the connection hole 403. The threaded rod penetrates through the rotating end 405 and is in threaded cooperation with the rotating end 405. The threaded rod provides additional fixation and stability. Both the connection column 304 and the protruding block 305 are designed with rubber.

[0064] Specifically, the motor 302 is embedded in the inner bottom surface of the outer frame 101 to ensure that the motor 302 is firmly fixed, the rotating column 301 is fixed to the output end of the motor 302 to ensure the transmission connection between the rotating column 301 and the motor 302, and the connecting column 304 is set on the inner side of the arc-shaped blade 303, close to the midpoint of the arc-shaped blade 303, and two clamping plates 404 are set in the connecting hole 403. When the steel column 400 is connected to the connecting block 100, the motor 302 is started, and the rotating column 301 drives the arc-shaped blade 303 to rotate. The arc-shaped blade 303 rotates to the extension plate 401 and passes through the clamping hole 402. When the protruding block 305 of the connecting column 304 is inserted into the connecting hole 403, the clamping plate 404 will be stretched open by the protruding block 305, and the clamping plate 404 will expand through the rotating end 405. By setting the sizes of the connecting hole 403 and the clamping plate 404, the movable range of the clamping block is limited through the connecting hole 403, so that it clamps the protruding block 305 of the connecting column 304. When the connecting piece 300 needs to be disassembled, the connecting column 304 is withdrawn from the connecting hole 403 by rotating the arc blade 303 in the opposite direction, and the arc blade 303 is separated from the extension plate 401 through the clamping hole 402, which is convenient for disassembly and maintenance.

[0065] In an embodiment of the present invention, a cavity for installing electronic components is opened inside the steel column 400 and the rotating column 301. Electrical components connected to the three-dimensional mesh structure of the Ni-Ti alloy wire are arranged inside the steel column 400 and the rotating column 301. The electrical components include a power supply, a wire, a switch, a fuse and a temperature sensor. The power supply is a micro-switch power supply, the wire is a silicone wire, and the switch is a micro-switch. A fuse with a suitable rated current is selected to protect the circuit from overcurrent damage. The fuse is connected in series in the circuit and can be installed near the power supply or in the wire channel. The positive pole of the power supply is connected to one end of the switch through the wire, and welding or crimping is used to ensure a firm connection. The other end of the switch is connected to one end of the fuse, and the other end of the fuse is connected to one end of the three-dimensional mesh structure of the Ni-Ti alloy wire. The other end of the three-dimensional mesh structure of the Ni-Ti alloy wire is connected to the output end of the controller, and the input end of the controller is connected to the temperature sensor. The other end of the temperature sensor is connected to the negative pole of the power supply to form a loop.

[0066] In an embodiment of the present invention, the prediction analysis module 505 arranges strain sensors, such as strain gauges, fiber Bragg grating sensors, etc., at key parts of the steel structure. The sensors monitor the strain changes of the structure in real time and transmit the data to the monitoring platform 500. The original data collected is cleaned to remove noise, outliers, etc., and the sensor data is corrected to ensure the accuracy and consistency of the data. If necessary, interpolation processing is performed on the data to obtain denser data points. According to the sensor data, the strain value of each monitoring point is calculated, the distribution of strain in the structure is analyzed, high-strain areas are identified, the structure is divided into multiple grid cells, each cell corresponding to a strain value. According to the magnitude of the strain value, each grid cell is mapped to a different color to form a strain contour map. A professional visualization software is used to generate the strain contour map, and the generated strain contour map is optimized, such as adjusting the color mapping, adding annotations, etc., to improve readability. The strain contour map is output in the form of a picture or video for easy viewing and analysis. A convolutional neural network is used to perform real-time analysis on the input strain contour map. The convolutional neural network automatically extracts features in the image, such as stress concentration areas, deformation patterns, etc. Further analysis is performed on the analyzed data through a deep learning model. The model can perform feature extraction, pattern recognition, and prediction analysis, and output analysis results, such as structural state assessment, potential risk prediction, etc. The results are presented in a visual manner for easy understanding and decision-making. Based on historical data and real-time monitoring data, trend prediction is performed to predict the future change trend of the structural state and potential risks, and decision support suggestions based on prediction analysis are provided, including maintenance strategies, reinforcement measures, usage restrictions, etc. The effects after the implementation of the decision are fed back into the system to optimize the prediction analysis module 505 and the digital twin model, forming a closed-loop control to continuously improve the accuracy of structural health monitoring and prediction analysis.

[0067] In an embodiment of the present invention, the detailed steps for the positioning module 502 to perform positioning include:

[0068] Step a, according to the steel structure design drawings, determine the key connection points where chips need to be implanted, and use special tools to implant diamond NV color center chips into the steel structure to ensure that the chips are tightly combined with the steel structure. Use epoxy resin or other fixing materials to fix the chips and protect them to prevent damage during the construction process. Before implanting the chips, calibrate the geomagnetic field to ensure the accuracy of the positioning data;

[0069] Step b, arrange UWB ultra-wideband devices around the structure to form a positioning network covering the entire structure, connect the UWB devices to the monitoring platform 500, and perform debugging to ensure stable data transmission;

[0070] Step c: Start the diamond NV - center chip, monitor the geomagnetic field disturbance in real - time, transmit the positioning data to the monitoring platform 500 in real - time through UWB technology, and the monitoring platform 500 stores, processes, and analyzes the positioning data to generate spatial positioning information;

[0071] Among them, the startup of the diamond includes: ensuring that devices such as the diamond NV - center chip, laser device, microwave source, photodetector, and monitoring platform 500 are correctly connected and in good working condition, turning on the laser device, adjusting laser parameters (such as wavelength, power, etc.) to match the excitation requirements of the diamond NV - center, focusing the laser on the diamond NV - center chip to excite the NV - center, starting the microwave source, adjusting the microwave frequency to the resonance frequency of the NV - center, applying the microwave signal to the diamond NV - center chip through the microwave antenna to achieve the quantum state manipulation of the NV - center, using the photodetector to collect the photons emitted by the NV - center, converting the collected photon signal into an electrical signal, and performing amplification and filtering processing. The monitoring platform 500 records the output signal of the photodetector in real - time, processes the collected data to extract useful geomagnetic field disturbance information and positioning information. Considering the material properties of the steel structure, specific parameter adjustments are required for the laser device, microwave source, and photodetector. For example, the laser device selects a shorter wavelength, increases the laser frequency, and realizes the communication and data transmission between chips of different layers of the multi - layer steel structure through wireless communication technology, and signal repeaters are set in the multi - layer structure to enhance the transmission distance and penetration ability of laser, microwave, and optical signals. The time - division multiplexing technology is adopted to start the chips of different layers at different time points to avoid signal interference;

[0072] The detailed steps for establishing the distributed monitoring network 503 module include:

[0073] Spray graphene conductive ink evenly on the surface of the steel structure using a spraying device. After spraying, wait for the ink to dry to form a stable conductive layer. Install quantum chips at all key connection nodes of the steel structure. Use appropriate fixing materials (such as epoxy resin) to connect the quantum chips to the monitoring network formed by the graphene conductive ink. Coat a thin layer of conductive glue or conductive silver paste at the signal output end of the quantum chip to enhance the stability of signal transmission. Coat graphene conductive ink near the signal output end of the quantum chip to form a conductive circuit, ensuring good contact between the graphene conductive ink and the conductive glue or conductive silver paste at the signal output end of the quantum chip. Extend the conductive circuit formed by the graphene conductive ink to the input end of the monitoring network, ensuring that the arrangement of the quantum chips can cover the entire structure to form a complete magnetic field network. Connect the quantum chips wirelessly to form a distributed magnetic field network. The quantum chips generate a distributed magnetic field through mutual interaction, and the state change of the steel structure is reflected by the magnetic field intensity and distribution. Real-time collect magnetic field data through the quantum chips, and process and analyze it through the digital twin module 504 and the predictive analysis module 505. Evaluate the state of the steel structure according to the magnetic field intensity and distribution. Embodiment

[0074] Refer to the appendix Figure 7 As shown, another method for the modular horizontal connection system of a steel structure based on intelligent monitoring provided by an embodiment of the present invention includes the following steps:

[0075] S1. Pre-embed a three-dimensional network structure made of Ni-Ti alloy wire into the connection surface of the extension plate 401 and the arc blade 303. Install temperature sensors at appropriate positions and connect them to the controller. Spray graphene conductive ink on the surfaces of the steel column 400 and the connection block 100. Install the connector 300 and the support 200 in the connection block 100. Align the steel column 400 with the connection block 100 to connect the steel structure. Insert the extension plate 401 into the connection block 100. Start the motor 302, and the rotating column 301 drives the arc blade 303 to rotate. The arc blade 303 passes through the extension plate 401 through the card hole 402. At the same time, the protruding block 305 on the connection column 304 is snapped into the connection hole 403 of the extension plate 401. When it is necessary to disassemble the connection block 100, reverse-rotate the arc blade 303 through the motor 302 to pull out the connection column 304 from the connection hole 403, and the arc blade 303 is separated from the extension plate 401 through the card hole 402, and the alloy wire gradually cools and returns to its original state;

[0076] S2. At the same time, close the switch through the controller, start the power supply, and start heating the alloy wire. Real-time monitor the temperature of the alloy wire through the temperature sensor. When the temperature reaches 40°C, the controller adjusts the power output to keep the temperature stable. After the alloy wire is heated to the phase change temperature, it shrinks to perform self-adaptive pressing of the extension plate 401 and the arc blade 303;

[0077] Among them, the temperature control strategy is as follows: First, raise the temperature of the alloy wire to near the phase transition temperature. For example, raise it from room temperature to 35°C, and slow down the heating rate to more precisely control the temperature and avoid exceeding the phase transition temperature. For example, halve the heating rate from 35°C to 40°C. Keep the temperature stable for a period of time, such as 2 - 5 minutes, to ensure that the alloy wire fully shrinks and completes self - adaptive clamping. As needed, the temperature can be gradually reduced to a safe level, or the phase transition temperature can be maintained to continuously monitor the connection state. The temperature of the alloy wire is monitored in real time through a temperature sensor, and the data is transmitted to the controller. The controller adjusts the power output according to the real - time temperature data to keep the temperature stable near the phase transition temperature. Set a maximum temperature limit, such as 41°C. Once the temperature exceeds this limit, immediately cut off the power supply and issue an alarm. Set a minimum temperature limit, such as 38°C. Once the temperature is lower than this limit, increase the power output to raise the temperature. Use a controllable power supply such as a thyristor or a solid - state relay to achieve fine power regulation. According to the temperature feedback, adopt a PID control algorithm to achieve fast and stable temperature control;

[0078] S3. When connecting the connecting block 100 to the steel column 400, the connection state of the connecting piece 300 is monitored in real time through the induction module 501. The position of the blade is detected by the Hall sensor 5011, and the relative position between the arc - shaped blade 303 and the extension plate 401 is continuously monitored, and a digital signal is output to indicate whether the blade is in place. The pressure sensor measures the pressure distribution on the contact surface between the arc - shaped blade 303 and the extension plate 401 in real time, converts it into an electrical signal and transmits it to the monitoring platform 500. The laser excites the quantum chip to generate NV - center luminescence, and the photodetector collects the photon signal and converts it into an electrical signal to represent the change of the geomagnetic field. Using the known geomagnetic field model and the measured geomagnetic field perturbation data, the position of the steel structure is calculated through a mathematical algorithm to adjust the connection position of the steel structure;

[0079] S4. Transmit the sensor data to the monitoring platform 500 through wireless communication technology, pre - process the data, and update the digital twin model of the steel structure in real time based on the collected data to reflect the current state and deformation of the structure. Analyze indicators such as stress, strain, and displacement of the structure according to the digital twin model, and evaluate the health state and remaining life of the structure;

[0080] S5. Input the pre - processed strain data, extract features through a convolutional neural network, output a strain nephogram to display the strain distribution of the structure. Based on historical data and the current state, use a machine learning algorithm to predict the probability of connection failure, output the failure probability, analyze the change trend of the structure state, predict risks, and perform corresponding processing according to the prediction results;

[0081] S6. When the monitored indicators exceed the preset thresholds, warning messages are automatically issued. Based on the results of predictive analysis, decision-making suggestions such as maintenance strategies, strengthening measures, and usage restrictions are generated. Real-time monitoring data is displayed through a visualization interface, providing a variety of charts and views to facilitate users to intuitively understand the structural state.

[0082] It should be noted that S1 is the basic installation step and needs to be completed first. S2 is carried out after S1 is completed, but heating and temperature monitoring are carried out synchronously. The monitoring by the induction module 501 and the detection by the Hall sensor 5011 in S3 are carried out synchronously with S1, jointly providing information on the connection state. The data transmission and digital twin model update in S4 are carried out synchronously with S1, reflecting the structural state in real time. The data preprocessing and feature extraction in S5 are carried out after S4 is completed, with preprocessing first and then feature extraction. Predictive analysis is a continuous process based on real-time data. The warning and decision-making suggestion generation in S6 are based on the results of S5, but the real-time data display is carried out continuously.

[0083] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0084] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the protection scope of the present disclosure. The appended method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy recited.

[0085] In the above detailed description, various features are combined in a single embodiment to simplify the present disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly recited in each claim. On the contrary, as reflected in the appended claims, the present invention resides in less than all of the features of a single disclosed embodiment. Accordingly, the appended claims are hereby expressly incorporated into the detailed description, where each claim stands on its own as a separate preferred embodiment of the present invention.

[0086] Those skilled in the art should also understand that all the illustrative logical blocks, modules, circuits and algorithm steps described in connection with the embodiments herein can be implemented as electronic hardware, computer software, or a combination thereof. To clearly illustrate the interchangeability between hardware and software, the above various illustrative components, blocks, modules, circuits and steps have been generally described in terms of their functions. Whether such a function is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Skilled technicians can implement the described functions in a flexible manner for each specific application. However, such implementation decisions should not be construed as departing from the scope of protection of the present disclosure.

[0087] The steps of the methods or algorithms described in connection with the embodiments herein can be directly embodied as hardware, software modules executed by a processor, or a combination thereof. The software modules can be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium well-known in the art. An exemplary storage medium is connected to the processor so that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The ASIC can be located in a user terminal. Of course, the processor and the storage medium can also exist as discrete components in the user terminal.

[0088] For software implementation, the techniques described in this application can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described in this application. These software codes can be stored in a memory unit and executed by a processor. The memory unit can be implemented inside the processor or outside the processor. In the latter case, it is communicatively coupled to the processor by various means, which are well-known in the art.

[0089] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments. However, those of ordinary skill in the art should recognize that the various embodiments can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, this term is covered in a manner similar to the term "including" as interpreted when "including" is used as a transitional word in the claims. In addition, any term "or" used in the claims or the specification is intended to mean "non-exclusive or".

Claims

1. A modular horizontal connection system for steel structures based on intelligent monitoring, characterized in that It includes a connecting block (100) and a steel column (400). The connecting block (100) includes an outer frame (101) and a cover plate (102). A support member (200) is arranged between the outer frame (101) and the cover plate (102). The support member (200) includes a hydraulic cylinder (201) and a telescopic rod (202), and the hydraulic cylinder (201) is sleeved outside the telescopic rod (202). Inside the outer frame (101), there is a connecting member (300) for connecting the steel column (400). The connecting member (300) includes a rotating column (301), a motor (302), an arc-shaped blade (303) and a connecting column (304). The rotating column (301) is arranged at the output end of the motor (302). The arc-shaped blade (303) is arranged outside the rotating column (301). The connecting column (304) is arranged inside the arc-shaped blade (303). The output end of the motor (302) is in transmission connection with the rotating column (301). At least two arc-shaped blades (303) are fixed outside the rotating column (301). An extension plate (401) is welded to the inner end of the steel column (400). The surfaces of the extension plate (401) and the arc-shaped blade (303) are both embedded with a three-dimensional network structure made of Ni-Ti alloy wire. The surface of the extension plate (401) is provided with a clamping hole (402) adapted to the arc-shaped blade (303) and a connecting hole (403) adapted to the connecting column (304). The clamping hole (402) is designed as a through hole. The arc-shaped blade (303) penetrates the extension plate (401) through the clamping hole (402). The clamping hole (402) and the connecting hole (403) are arranged in a staggered manner. The connecting hole (403) is a blind hole. The bottom of the connecting hole (403) has a stress release micro-pit. Both the clamping hole (402) and the connecting hole (403) are processed by electrolytic polishing. The connecting column (304) is arranged near the midpoint of the arc-shaped blade (303). A protruding block (305) is arranged at the front end of the connecting column (304). Inside the connecting hole (403), there is a clamping plate (404) adapted to the protruding block (305). A spring (306) is arranged at the rear end of the protruding block (305). Both ends of the spring (306) are fixedly connected to the arc-shaped blade (303) and the protruding block (305) respectively. Two clamping plates (404) are arranged inside the connecting hole (403). A rotating end (405) is arranged at the end of the clamping plate (404). A monitoring platform (500), which is used to monitor and control the connection work between the connecting block (100) and the steel column (400), includes an induction module (501) for sensing the working state of the connecting block (100). A positioning module (502) for real-time positioning of the connecting block (100) and the steel column (400) using a diamond NV color center chip. Distributed monitoring network (503), which forms a distributed strain monitoring network by spraying graphene conductive ink on the surfaces of the connection block (100) and the steel column (400); Digital twin module (504), which generates a three-dimensional model of the steel structure based on the monitoring data; Prediction and analysis module (505), which uses a machine learning model to predict the probability of connection failure of the steel structure.

2. The modular horizontal connection system for steel structures based on intelligent monitoring according to claim 1, wherein, Cavities for installing electronic components are provided inside the steel column (400) and the rotating column (301). Electrical components connected to the three-dimensional network structure of Ni-Ti alloy wires are arranged inside both the steel column (400) and the rotating column (301). The electrical components include a power supply, wires, a switch, a fuse, and a temperature sensor. One end of the positive pole of the power supply is connected to one end of the switch through a wire, the other end of the switch is connected to one end of the fuse, the other end of the fuse is connected to one end of the three-dimensional network structure of Ni-Ti alloy wires, the other end of the three-dimensional network structure of Ni-Ti alloy wires is connected to the output end of the controller, the input end of the controller is connected to the temperature sensor, and then the other end of the temperature sensor is connected to the negative pole of the power supply to form a loop.

3. A method for an intelligent monitoring-based modular horizontal connection system of steel structures, applied to an intelligent monitoring-based modular horizontal connection system of steel structures according to any one of claims 1 to 2, characterized in that, Including the following steps: S1. Pre-embed a three-dimensional network structure made of Ni-Ti alloy wires into the connection surface of the extension plate (401) and the arc-shaped blade (303), spray graphene conductive ink on the surfaces of the steel column (400) and the connection block (100), install the connecting member (300) and the supporting member (200) in the connection block (100), align the steel column (400) with the connection block (100), and perform the connection of the steel structure; S2. At the same time, close the switch through the controller to start the power supply and begin to heat the alloy wires. The temperature of the alloy wires is monitored in real time through the temperature sensor. When the temperature reaches 40 °C, the controller adjusts the power output to keep the temperature stable. After the alloy wires are heated to the phase change temperature, they shrink to perform the adaptive pressing of the extension plate (401) and the arc-shaped blade (303); S3. When the connection block (100) is connected to the steel column (400), the connection state of the connecting member (300) is monitored in real time through the induction module (501), converted into an electrical signal and transmitted to the monitoring platform (500). The laser excites the quantum chip, and the position of the steel structure is calculated through a mathematical algorithm using the known geomagnetic field model and the measured geomagnetic field disturbance data, so as to adjust the connection position of the steel structure; S4. Transmit the sensor data to the monitoring platform (500) through wireless communication technology, preprocess the data, update the digital twin model of the steel structure in real time based on the collected data to reflect the current state and deformation of the structure, analyze the structural indicators according to the digital twin model, and evaluate the health state and remaining life of the structure; S5. Input the preprocessed strain data, extract features through a convolutional neural network, output a strain nephogram, use a machine learning algorithm to predict the probability of connection failure, output the failure probability, analyze the change trend of the structural state, predict risks, and perform corresponding processing according to the prediction results.

4. The method of an intelligent monitoring-based modular horizontal connection system for steel structures according to claim 3, characterized in that The detailed steps for the positioning module (502) to perform positioning include: Step a: According to the steel structure design drawings, determine the key connection points where chips need to be implanted. Use a special tool to implant diamond NV - color - center chips into the steel structure, and fix the chips with epoxy resin. Step b: Arrange UWB ultra - wideband devices around the structure to form a positioning network covering the entire structure, and connect the UWB devices to the monitoring platform (500). Step c: Activate the diamond NV - color - center chips, and monitor the geomagnetic field disturbance in real - time. Transmit the positioning data to the monitoring platform (500) in real - time through UWB technology. The monitoring platform (500) stores, processes, and analyzes the positioning data to generate spatial positioning information.

5. The method of a steel structure modular horizontal connection system based on intelligent monitoring according to claim 4, characterized in that The detailed steps for establishing the distributed monitoring network (503) module include: Use a spraying device to evenly spray graphene conductive ink on the surface of the steel structure. Wait for the ink to dry after spraying to form a stable conductive layer. Install quantum chips at all key connection nodes of the steel structure, connect the quantum chips to the monitoring network formed by the graphene conductive ink, and connect the quantum chips wirelessly to form a distributed magnetic field network. The quantum chips generate a distributed magnetic field through mutual interaction, and the state change of the steel structure is reflected by the magnetic field intensity and distribution.

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