Building curtain wall damage intelligent diagnosis method and device based on multi-source sensing fusion

Abstract

The invention relates to the technical field of curtain wall detection, in particular to an intelligent building curtain wall damage diagnosis method based on multi-source sensing fusion, which comprises the following steps: a distributed optical fiber sensor monitors the strain and temperature of key nodes of a curtain wall structure in real time, and an edge calculation box processes the monitored data in time; the computer terminal analyzes and judges the health condition of the curtain wall according to the processing result, and when the health condition is abnormal, an alarm is given out through an early warning module; an inspector carries out regular inspection on the surface of the curtain wall through the unmanned aerial vehicle platform carrying the thermal infrared imager and the ultrasonic pulse speed tester, and wounds on the surface and inside of the curtain wall are monitored; the detection information is analyzed and displayed through the first ground display controller and the second ground display controller; multi-source sensing fusion cooperative detection effectively improves the detection precision, facilitates timely understanding of the curtain wall structure condition, further facilitates timely taking of protection measures for the curtain wall, and improves the safety of the curtain wall.

Description

Technical Field

[0001] This invention relates to the field of curtain wall inspection technology, specifically to an intelligent diagnostic method and device for building curtain wall damage based on multi-source sensor fusion. Background Technology

[0002] A curtain wall is a lightweight structure used for exterior wall cladding in buildings. It has both decorative and functional characteristics and consists of a structural frame and inlaid panels. It does not bear the load of the main structure and is installed on the exterior wall of a building by means of suspension or frame support. It resembles a curtain and is therefore named "suspended wall" or "curtain wall". With the development of society, more and more attention is being paid to the protection of historical relics. In particular, the health condition of curtain wall structures with important historical value directly affects the protection of cultural heritage.

[0003] Currently, existing curtain wall structures of significant historical value mainly rely on regular manual inspections, which are inefficient and susceptible to subjective factors, making it impossible to effectively assess the health status of the curtain walls. Some systems use fiber optic sensors for intelligent diagnosis of curtain wall damage, but single sensors acquire limited information and struggle to accurately assess complex structural damage. In particular, the reliability of monitoring results is greatly reduced under changing natural environments and human interference. Furthermore, the use of fiber optic sensors requires fixing them to the curtain wall surface, as well as installing protective covers and wiring boxes on the outside of the sensors. All of these components need to be bolted to the curtain wall surface, which can easily cause large-area damage to the curtain wall surface and affect the structural safety of the curtain wall.

[0004] Therefore, it is necessary to invent an intelligent diagnostic method and device for building curtain wall damage based on multi-source sensor fusion to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a method and device for intelligent diagnosis of building curtain wall damage based on multi-source sensor fusion, in order to solve the problems that manual inspection cannot effectively assess the health status of curtain walls, that single sensors have limited information acquisition and are difficult to accurately judge the damage of complex structures, and that existing fiber optic sensors, protective covers and wiring boxes can easily cause large-area damage to the curtain wall surface during installation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for intelligent diagnosis of building curtain wall damage based on multi-source sensor fusion, comprising the following steps: S1. Real-time monitoring of strain and temperature at key nodes of the curtain wall structure is carried out using distributed fiber optic sensors, and the monitoring data is processed in a timely manner using an edge computing box. S2. The processing results are transmitted to the computer terminal. The computer terminal analyzes and judges the health status of the curtain wall based on the processing results. When the health status is abnormal, an early warning module will issue a warning. S3. Inspection personnel use drone platforms equipped with infrared thermal imagers and ultrasonic pulse velocity testers to conduct regular inspections of the curtain wall surface and monitor for damage to the curtain wall surface and interior. S4. The first ground display controller and the second ground display controller respectively analyze and display the detection information of the infrared thermal imager and the ultrasonic pulse velocity tester, and wirelessly transmit the information to the computer terminal. S5. The computer terminal will intelligently compare the detection information with historical information to determine whether the curtain wall structure is healthy. If it is unhealthy, it will issue a warning through the early warning module.

[0007] A smart diagnostic device for building curtain wall damage based on multi-source sensor fusion includes a long-term monitoring and early warning system, a short-term monitoring and screening system, and a computer terminal. Both the long-term monitoring and early warning system and the short-term monitoring and screening system are electrically connected to the computer terminal. The long-term monitoring and early warning system includes a distributed optical fiber sensor, a fiber optic demodulator, and an edge computing box. The distributed optical fiber sensor is installed in series on the surface of the curtain wall. The short-term monitoring and screening system includes an infrared thermal imager, an ultrasonic pulse velocity tester, and a UAV platform. Both the infrared thermal imager and the ultrasonic pulse velocity tester are installed on the surface of the UAV platform.

[0008] By adopting the above technical solutions, the long-term monitoring and early warning system is used to monitor the structure of the curtain wall in real time, and the short-term monitoring and screening system is used to conduct periodic flaw detection on the curtain wall and transmit the monitoring information to the computer terminal. The monitoring information is displayed in real time on the surface of the monitor in the computer terminal. The distributed fiber optic sensors in the long-term monitoring and early warning system track the health of the curtain wall structure over a long period of time, and the infrared thermal imager and ultrasonic pulse velocity tester in the short-term monitoring and screening system quickly identify internal hollow and crack damage in the curtain wall. Multi-source sensor fusion and collaborative detection effectively improves the detection accuracy, facilitates timely understanding of the curtain wall structure, and thus facilitates timely implementation of protective measures.

[0009] Optionally, the fiber Bragg grating demodulator is installed at the rear end of the distributed fiber optic sensor via a transmission optical cable, the edge computing box is installed at the rear end of the fiber Bragg grating demodulator via an electrical signal line, a protective component is installed on the side of the distributed fiber optic sensor, the infrared thermal imager is connected to a first ground display controller via an electrical signal line, and the ultrasonic pulse velocity tester is connected to a second ground display controller via an electrical signal line.

[0010] By adopting the above technical solution, the distributed optical fiber sensor can monitor the strain and temperature of the curtain wall. The fiber optic demodulator is used to convert the wavelength signal reflected by the sensor into readable physical quantity data (such as strain value and temperature value). The edge computing box is used to receive the demodulated digital signal and store and analyze the digital signal. The infrared thermal imager is used to quickly scan the location of hollow cracks on the curtain wall surface. The ultrasonic pulse velocity tester is used to accurately detect the location of hollow cracks. The first ground display controller and the second ground display controller are used to control the detection of the infrared thermal imager and the ultrasonic pulse velocity tester, respectively, and to analyze and display the signals fed back by them.

[0011] Optionally, the edge computing box, the first ground display controller, the second ground display controller, and the computer terminal are all equipped with wireless transmission modules. The edge computing box, the first ground display controller, and the second ground display controller are all connected to the computer terminal via wireless network signals. The computer terminal is connected to an early warning module and a storage module via electrical signal lines.

[0012] By adopting the above technical solution, the edge computing box, the first ground display controller and the second ground display controller all transmit the analysis data to the computer terminal for display and storage in the storage module through wireless network signals. When the feedback data is abnormal, the computer terminal issues an alert through the early warning module, so as to facilitate timely protective measures for the curtain wall.

[0013] Optionally, the protective assembly includes a support column, a lifting rod, a mounting base, a protective cover, and a wiring box. The lifting rod is slidably connected to the inside of the support column, the mounting base is fixedly connected to the upper end of the lifting rod, the protective cover is movably installed on the left side of the mounting base, and a corrugated folded rubber sleeve is fixedly connected to the left side of the protective cover. The left end of the corrugated folded rubber sleeve is in close contact with the surface of the curtain wall.

[0014] By adopting the above technical solution, the protective component is used to protect the distributed optical fiber sensors installed on the curtain wall surface, so as to avoid the external environment from affecting the monitoring results. The supporting column is installed on the side of the curtain wall and its lower end is connected to the ground. Then, the corrugated folded rubber sleeve is pressed tightly against the curtain wall surface, and the protective cover protects the distributed optical fiber sensors. At the same time, the use of large-area bolts for fixing is avoided, reducing damage to the curtain wall surface.

[0015] Optionally, the surface of the mounting base is fixedly connected with two sets of upper and lower positioning sleeves, and the right side surface of the protective cover is fixedly connected with two sets of upper and lower positioning slide rods. The positioning slide rods are slidably connected to the positioning sleeves, and the right end of the positioning slide rod is provided with a threaded groove, and the surface of the threaded groove is threaded with a positioning nut.

[0016] By adopting the above technical solution, the positioning slide rod slides left and right inside the positioning sleeve, thereby adjusting the left and right position of the protective cover, while the nut is used to limit the right end of the positioning slide rod.

[0017] Optionally, a threaded sleeve is fixedly connected to the surface of the mounting base at a position between the two sets of positioning sleeves. A threaded rod is connected internally to the threaded sleeve. The left end of the threaded rod is in close contact with the surface of the protective cover, and an adjusting rod is fixedly connected to the right end of the threaded rod.

[0018] By adopting the above technical solution, the threaded rod is used to support the right side of the protective cover.

[0019] Optionally, the protective cover has mounting grooves on both the front and rear surfaces, and multiple sets of connecting blocks are fixedly connected to the inner wall of the mounting grooves. A sealing plate is connected to the outer side of each connecting block.

[0020] By adopting the above technical solution, the mounting slot is used to install distributed optical fiber sensors and transmission optical cables.

[0021] Optionally, a cable tray is provided on the lower side of the mounting slot, the cable box is fixedly connected to the outer side of the cable tray, and a cover plate is fixedly connected to the surface of the cable box.

[0022] By adopting the above technical solutions, cable trays and cable ducts are used to arrange transmission optical cables.

[0023] Optionally, the upper end of the support column is provided with two sets of first locking holes, and the surface of the lifting rod is fixedly connected with multiple sets of second locking holes. Locking bolts are inserted between the first locking holes and the second locking holes. The lower end of the support column is fixedly connected with a support frame. The support frame is fixedly connected to the ground by anchor bolts. A diagonal brace is fixedly connected between the support column and the support frame.

[0024] By adopting the above technical solution, the lifting rod can slide up and down inside the support column to adjust the height of the protective cover, and the locking bolt is used to lock and fix the lifting rod to the support column.

[0025] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. This invention uses distributed fiber optic sensors in a long-term monitoring and early warning system to track the health of the curtain wall structure over a long period of time, and infrared thermal imagers and ultrasonic pulse velocity testers in a short-term monitoring and screening system to quickly identify internal hollow areas and cracks in the curtain wall. Multi-source sensor fusion and collaborative detection effectively improves detection accuracy, facilitates timely understanding of the curtain wall structure, and makes it easier to take timely protective measures to improve the safety of the curtain wall. 2. This invention protects the distributed fiber optic sensor and transmission cable by using a combination of support columns, lifting rods, mounting bases, protective covers, and wiring boxes. The support columns are installed on the side of the curtain wall and connected to the ground at their lower ends. Then, a corrugated folded rubber sleeve is pressed tightly against the surface of the curtain wall, and the distributed fiber optic sensor is protected by the protective cover. This avoids the use of large-area bolts for fixing, reduces damage to the curtain wall surface, and further improves the safety of the curtain wall. 3. This invention uses a lifting rod and a supporting column to lift the protective cover. The lifting rod allows for easy adjustment of the height of the protective cover, making it suitable for distributed fiber optic sensors at different heights, thus improving the equipment's adaptability. In conjunction with the distributed fiber optic sensors, it can monitor nodes at different heights in real time. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the long-term monitoring and early warning system of the present invention; Figure 3 This is a schematic diagram of the short-term monitoring and screening system of the present invention; Figure 4 This is a schematic diagram of the protective component structure of the present invention; Figure 5 This is a schematic diagram of the connection structure between the protective cover and the mounting base of the present invention; Figure 6 This is a schematic diagram of the external structure of the protective cover of the present invention; Figure 7 This is a schematic diagram of the internal structure of the protective cover of the present invention; Figure 8 This is a schematic diagram of the cable box structure of the present invention; Figure 9 This is a schematic diagram of the external structure of the supporting column and lifting rod of the present invention; Figure 10 This is a schematic diagram of the internal structure of the support column and lifting rod of the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Long-term monitoring and early warning system; 11. Distributed fiber optic sensor; 12. Fiber optic grating demodulator; 13. Edge computing box; 14. Protective components; 2. Short-term monitoring and screening system; 21. Infrared thermal imager; 22. First ground display controller; 23. Ultrasonic pulse velocity tester; 24. Second ground display controller; 25. Unmanned aerial vehicle platform; 3. Computer terminal; 31. Early warning module; 32. Storage module; 4. Wireless transmission module; 5. Support column; 51. First keyhole; 52. Lifting rod; 53. Second keyhole; 54. Support frame; 55. Diagonal brace; 6. Mounting base; 61. Positioning slide sleeve; 62. Threaded sleeve; 63. Threaded rod; 64. Adjusting rod; 7. Protective cover; 71. Positioning slide rod; 72. Threaded groove; 73. Positioning nut; 74. Mounting groove; 75. Cable tray; 76. Connecting block; 77. Corrugated folded rubber sleeve; 78. Sealing plate; 8. Cable box; 81. Cover plate. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. Example

[0029] This invention provides, for example Figures 1 to 3 The method for intelligent diagnosis of building curtain wall damage based on multi-source sensor fusion, as shown, includes the following steps: 1) The strain and temperature of key nodes of the curtain wall structure are monitored in real time using distributed optical fiber sensors 11, and the monitoring data are processed in a timely manner using edge computing boxes 13. 2) The processing results are transmitted to computer terminal 3. Computer terminal 3 analyzes and judges the health status of the curtain wall based on the processing results. When the health status is abnormal, it will issue a warning through the early warning module 31. 3) Inspection personnel use a drone platform 25 equipped with an infrared thermal imager 21 and an ultrasonic pulse velocity tester 23 to conduct regular inspections of the curtain wall surface and monitor for damage to the curtain wall surface and interior. 4) The first ground display controller 22 and the second ground display controller 24 respectively analyze and display the detection information of the infrared thermal imager 21 and the ultrasonic pulse velocity tester 23, and wirelessly transmit the information to the computer terminal 3; 5) The computer terminal 3 will intelligently compare the detection information with historical information to determine whether the curtain wall structure is healthy. If it is unhealthy, it will issue a warning through the early warning module 31.

[0030] By employing the above methods to detect the health status of curtain wall structures, multi-source sensor fusion and collaborative detection can be achieved, facilitating the detection of the curtain wall's health status from multiple perspectives, improving the accuracy of monitoring data, enabling timely detection of changes in health status, and thus facilitating timely protection of the curtain wall structure and improving its safety. Example

[0031] See Figures 1 to 4 The illustrated intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion includes a long-term monitoring and early warning system 1, a short-term monitoring and screening system 2, and a computer terminal 3. Both the long-term monitoring and early warning system 1 and the short-term monitoring and screening system 2 are electrically connected to the computer terminal 3. The long-term monitoring and early warning system 1 includes a distributed optical fiber sensor 11, a fiber optic demodulator 12, and an edge computing box 13. The distributed optical fiber sensor 11 is installed in series on the surface of the curtain wall. The short-term monitoring and screening system 2 includes an infrared thermal imager 21, an ultrasonic pulse velocity tester 23, and a drone platform 25. The infrared thermal imager 21 and the ultrasonic pulse velocity tester 23 are both installed on the surface of the drone platform 25.

[0032] In the actual diagnostic process, distributed fiber optic sensors 11 are installed at multiple key nodes on the curtain wall surface. The distributed fiber optic sensors 11 are used for long-term tracking and detection to monitor the strain and temperature values ​​of the curtain wall in real time. The inspection personnel control the drone platform 25 to drive the infrared thermal imager 21 for large-area screening, while the ultrasonic pulse velocity tester 23 is used for local precise detection. The multi-sensor cooperation enables long-term tracking and detection, large-area screening, and local precise detection, thereby improving the detection accuracy.

[0033] In a preferred embodiment, the fiber Bragg grating demodulator 12 is installed at the rear end of the distributed fiber optic sensor 11 via a transmission optical cable, and the edge computing box 13 is installed at the rear end of the fiber Bragg grating demodulator 12 via an electrical signal line. A protective component 14 is installed on the side of the distributed fiber optic sensor 11. The infrared thermal imager 21 is connected to the first ground display controller 22 via an electrical signal line, and the ultrasonic pulse velocity tester 23 is connected to the second ground display controller 24 via an electrical signal line. The edge computing box 13, the first ground display controller 22, the second ground display controller 24, and the computer terminal 3 are all equipped with a wireless transmission module 4. The edge computing box 13, the first ground display controller 22, and the second ground display controller 24 are all connected to the computer terminal 3 via a wireless network signal. The computer terminal 3 is connected to the early warning module 31 and the storage module 32 via an electrical signal line.

[0034] Specifically, multiple sets of distributed fiber optic sensors 11 are sequentially installed at multiple key nodes on the surface of the curtain wall, and protective components 14 are installed on the outside for protection. Then, multiple sets of distributed fiber optic sensors 11 are connected in series using transmission optical cables to form a continuous fiber optic link. A control box is installed at the edge of the curtain wall, and a fiber optic demodulator 12 and an edge computing box 13 are installed inside the control box. The equipment is then debugged, and the edge computing box 13 is connected to the computer terminal 3 via a wireless network signal.

[0035] During testing, a wide-spectrum, high-power, and stable optical signal is emitted by a light source and transmitted through a transmission optical cable. The distributed optical fiber sensor 11 receives the optical signal, converts it into Bragg wavelength shift, and reflects the optical signal to the fiber optic demodulator 12 via the transmission optical cable. The fiber optic demodulator 12 measures the Bragg wavelength shift and converts it into physical quantities such as strain and temperature. The edge computing box 13 receives the data, analyzes it, and transmits the analyzed data to the computer terminal 3. At the same time, the storage module 32 stores the data. When the analyzed data exceeds a set threshold, an early warning module 31 issues an early warning. Meanwhile, the inspector can view real-time and historical data through the display panel on the computer terminal 3, realizing remote monitoring.

[0036] In addition, during short-term inspections and screenings of the curtain wall, the inspection personnel arrive at the site with an infrared thermal imager 21, a first ground display controller 22, an ultrasonic pulse velocity tester 23, a second ground display controller 24, and a drone platform 25. The infrared thermal imager 21 and the ultrasonic pulse velocity tester 23 are pre-installed on the underside of the drone platform 25.

[0037] During testing, the first ground display controller 22 and the second ground display controller 24 are connected to the infrared thermal imager 21 and the ultrasonic pulse velocity tester 23 respectively via electrical signal lines. The UAV platform 25 drives the infrared thermal imager 21 and the ultrasonic pulse velocity tester 23 to take off and hover. Then, the first ground display controller 22 and the second ground display controller 24 are used to debug the infrared thermal imager 21 and the ultrasonic pulse velocity tester 23 respectively. After the debugging is completed, the UAV drives the infrared thermal imager 21 and the ultrasonic pulse velocity tester 23 to move slowly and scan the surface of the curtain wall. At this time, the infrared thermal imager 21 scans the surface of the curtain wall quickly, and the ultrasonic pulse velocity tester 23 performs precise scanning and positioning of the surface and interior of the curtain wall. Example

[0038] See Figures 4 to 10The protective component 14 includes a support column 5, a lifting rod 52, a mounting base 6, a protective cover 7, and a wiring box 8. The lifting rod 52 is slidably connected to the inside of the support column 5. The mounting base 6 is fixedly connected to the upper end of the lifting rod 52. The protective cover 7 is movably installed on the left side of the mounting base 6. A corrugated folded rubber sleeve 77 is fixedly connected to the left side of the protective cover 7. The left end of the corrugated folded rubber sleeve 77 is in close contact with the curtain wall surface. Mounting grooves 74 are provided on both the front and rear surfaces of the protective cover 7. Multiple sets of connecting blocks 76 are fixedly connected to the inner wall of the mounting groove 74. A sealing plate 78 is connected to the outer side of the connecting block 76. A wiring groove 75 is provided on the lower side of the mounting groove 74. The wiring box 8 is fixedly connected to the outer side of the wiring groove 75. A cover plate 81 is fixedly connected to the surface of the wiring box 8.

[0039] In this process, after the distributed fiber optic sensor 11 is installed on the surface of the curtain wall, the protective component 14 is installed on its side. During the installation, the supporting column 5 is first fixed to the ground. Then, the transmission optical cable is arranged in sequence inside the cable boxes 8 on both sides, and the end of the transmission optical cable is fused to the end of the distributed fiber optic sensor 11. Next, the protective cover 7 is slid to the left so that the corrugated folded rubber sleeve 77 abuts against the surface of the curtain wall, thereby protecting the distributed fiber optic sensor 11 inside. Then, the transmission optical cable is arranged and fixed through the mounting groove 74. After the arrangement is completed, the sealing plate 78 and the connecting block 76 are fixed with screws. At this time, the sealing plate 78 seals the mounting groove 74. At the same time, the cover plate 81 and the cable box 8 are connected with screws to seal the transmission optical cable inside the cable box 8, thereby improving the safety of the distributed fiber optic sensor 11 and the transmission optical cable and improving the data monitoring accuracy.

[0040] In a preferred embodiment, the surface of the mounting base 6 is fixedly connected with two sets of upper and lower positioning slide sleeves 61, and the right side surface of the protective cover 7 is fixedly connected with two sets of upper and lower positioning slide rods 71. The positioning slide rods 71 ​​are slidably connected to the positioning slide sleeves 61. The right end of the positioning slide rod 71 is provided with a threaded groove 72, and the surface of the threaded groove 72 is threadedly connected with a positioning nut 73. The surface of the mounting base 6 is fixedly connected with a threaded sleeve 62 located between the two sets of positioning slide sleeves 61. The inside of the threaded sleeve 62 is threadedly connected with a threaded rod 63. The left end of the threaded rod 63 is tightly abutted against the surface of the protective cover 7, and the right end of the threaded rod 63 is fixedly connected with an adjusting rod 64.

[0041] Meanwhile, after the left end of the corrugated folded rubber sleeve 77 contacts the curtain wall surface, the threaded rod 63 is rotated to the left so that its left end abuts against the right end of the protective cover 7, thereby making the left end of the corrugated folded rubber sleeve 77 fit tightly against the curtain wall surface and locking the protective cover 7 in place. When the distributed fiber optic sensor 11 is damaged, the threaded rod 63 is rotated to the right, and then the protective cover 7 is slid to the right to facilitate quick replacement of the distributed fiber optic sensor 11.

[0042] As a preferred embodiment, the upper end of the support column 5 is provided with two sets of first locking holes 51, and the surface of the lifting rod 52 is fixedly connected with multiple sets of second locking holes 53. Locking bolts are inserted between the first locking holes 51 and the second locking holes 53. The lower end of the support column 5 is fixedly connected with a support frame 54. The support frame 54 is fixedly connected to the ground by anchor bolts. A diagonal brace 55 is fixedly connected between the support column 5 and the support frame 54.

[0043] In addition, during the process of fixing the support column 5, the support column 5 is fixed to the ground by using anchor bolts through multiple sets of holes on the surface of the support frame 54. At the same time, according to the height of the distributed optical fiber sensor 11, the lifting rod 52 is pulled upward to adjust the protective cover 7 to the same height as the distributed optical fiber sensor 11. At this time, the locking bolt is passed through the first locking hole 51 and the second locking hole 53 to lock the lifting rod 52 and the support column 5, thereby fixing the height of the protective cover 7, so that it can be used for distributed optical fiber sensors 11 of different heights, improving the adaptability of the equipment.

[0044] The working principle of this invention is as follows: By using a long-term monitoring and early warning system 1 in conjunction with a short-term monitoring and screening system 2, the structural health of the curtain wall is detected. The distributed fiber optic sensor 11 in the long-term monitoring and early warning system 1 tracks the structural health of the curtain wall over a long period of time. The infrared thermal imager 21 and the ultrasonic pulse velocity tester 23 in the short-term monitoring and screening system 2 quickly scan, identify, and accurately locate internal voids and cracks in the curtain wall. The multi-source sensor fusion and collaborative detection effectively improves the detection accuracy, facilitates timely understanding of the curtain wall structure, and enables timely protective measures to be taken, thereby improving the safety of the curtain wall. At the same time, the distributed fiber optic sensor 11 is protected by an external protective cover 7 to reduce damage to the surface of the curtain wall.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A method for intelligent diagnosis of building curtain wall damage based on multi-source sensor fusion, characterized in that, Includes the following steps: S1. Use distributed fiber optic sensors (11) to monitor the strain and temperature of key nodes of the curtain wall structure in real time, and use edge computing boxes (13) to process the monitoring data in a timely manner. S2. The processing result is transmitted to the computer terminal (3). The computer terminal (3) analyzes and judges the health status of the curtain wall based on the processing result. When the health status is abnormal, it will issue a warning through the early warning module (31). S3. The inspection personnel use an unmanned aerial vehicle platform (25) equipped with an infrared thermal imager (21) and an ultrasonic pulse velocity tester (23) to conduct regular inspections of the surface of the curtain wall and monitor for damage to the surface and interior of the curtain wall. S4. The first ground display controller (22) and the second ground display controller (24) analyze and display the detection information of the infrared thermal imager (21) and the ultrasonic pulse velocity tester (23) respectively, and wirelessly transmit the information to the computer terminal (3); S5. The computer terminal (3) intelligently compares the detection information with the historical information to determine whether the curtain wall structure is healthy. If it is unhealthy, it will issue a warning through the early warning module (31).

2. A smart diagnostic device for building curtain wall damage based on multi-source sensor fusion, used in the smart diagnostic method for building curtain wall damage based on multi-source sensor fusion as described in claim 1, comprising a long-term monitoring and early warning system (1), a short-term monitoring and screening system (2), and a computer terminal (3), characterized in that: The long-term monitoring and early warning system (1) and the short-term monitoring and screening system (2) are both electrically connected to the computer terminal (3). The long-term monitoring and early warning system (1) includes a distributed optical fiber sensor (11), a fiber optic demodulator (12), and an edge computing box (13). The distributed optical fiber sensor (11) is installed in series on the surface of the curtain wall. The short-term monitoring and screening system (2) includes an infrared thermal imager (21), an ultrasonic pulse velocity tester (23), and a drone platform (25). The infrared thermal imager (21) and the ultrasonic pulse velocity tester (23) are both installed on the surface of the drone platform (25).

3. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 2, characterized in that: The fiber optic demodulator (12) is installed at the rear end of the distributed fiber optic sensor (11) via a transmission optical cable. The edge computing box (13) is installed at the rear end of the fiber optic demodulator (12) via an electrical signal line. A protective component (14) is installed on the side of the distributed fiber optic sensor (11). The infrared thermal imager (21) is connected to the first ground display controller (22) via an electrical signal line. The ultrasonic pulse velocity tester (23) is connected to the second ground display controller (24) via an electrical signal line.

4. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 3, characterized in that: The edge computing box (13), the first ground display controller (22), the second ground display controller (24) and the computer terminal (3) are all equipped with wireless transmission modules (4). The edge computing box (13), the first ground display controller (22) and the second ground display controller (24) are all connected to the computer terminal (3) through wireless network signals. The computer terminal (3) is connected to the early warning module (31) and the storage module (32) through electrical signal lines.

5. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 3, characterized in that: The protective component (14) includes a support column (5), a lifting rod (52), a mounting base (6), a protective cover (7), and a cable box (8). The lifting rod (52) is slidably connected to the inside of the support column (5). The mounting base (6) is fixedly connected to the upper end of the lifting rod (52). The protective cover (7) is movably installed on the left side of the mounting base (6). A corrugated folded rubber sleeve (77) is fixedly connected to the left side of the protective cover (7). The left end of the corrugated folded rubber sleeve (77) is in close contact with the surface of the curtain wall.

6. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 5, characterized in that: The mounting base (6) is fixedly connected to two sets of upper and lower positioning slide sleeves (61), and the right side surface of the protective cover (7) is fixedly connected to two sets of upper and lower positioning slide rods (71). The positioning slide rods (71) are slidably connected to the positioning slide sleeves (61), and the right end of the positioning slide rods (71) is provided with a threaded groove (72). The surface of the threaded groove (72) is threadedly connected with a positioning nut (73).

7. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 6, characterized in that: The mounting base (6) is fixedly connected to a threaded sleeve (62) at a position between two sets of positioning sleeves (61). The threaded sleeve (62) is internally threaded with a threaded rod (63). The left end of the threaded rod (63) is in close contact with the surface of the protective cover (7). The right end of the threaded rod (63) is fixedly connected with an adjusting rod (64).

8. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 5, characterized in that: The protective cover (7) has mounting grooves (74) on both the front and rear sides. Multiple sets of connecting blocks (76) are fixedly connected to the inner wall of the mounting groove (74), and a sealing plate (78) is connected to the outer side of the connecting block (76).

9. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 8, characterized in that: The mounting groove (74) has a cable tray (75) on its lower side. The cable box (8) is fixedly connected to the outside of the cable tray (75). A cover plate (81) is fixedly connected to the surface of the cable box (8).

10. The intelligent diagnostic device for building curtain wall damage based on multi-source sensor fusion according to claim 5, characterized in that: The upper end of the support column (5) is provided with two sets of first locking holes (51), and the surface of the lifting rod (52) is fixedly connected with multiple sets of second locking holes (53). Locking bolts are inserted between the first locking holes (51) and the second locking holes (53). The lower end of the support column (5) is fixedly connected with a support frame (54). The support frame (54) is fixedly connected to the ground by anchor bolts. A diagonal brace (55) is fixedly connected between the support column (5) and the support frame (54).

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