Intelligent inhaul cable and curtain wall system

Abstract

The utility model discloses an intelligent inhaul cable and a curtain wall system, and belongs to the technical field of inhaul cable curtain walls. The intelligent inhaul cable comprises an inhaul cable body, the inhaul cable body comprises a center wire, an optical fiber sensor is arranged on the center wire, and the optical fiber sensor is fixedly connected with the center wire in a coupled mode; a data line of the optical fiber sensor is led out from the end of the inhaul cable body, the data line is electrically connected with a monitoring system, and the monitoring system is used for monitoring the state of the inhaul cable body in real time. According to the intelligent inhaul cable, the optical fiber sensor is used for sensing stress, strain and temperature changes of the center wire and the inhaul cable body in real time, the monitoring system receives and processes data of the optical fiber sensor, and therefore real-time monitoring and early warning of the state of the inhaul cable body are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of cable-stayed curtain walls, and in particular relates to an intelligent cable and curtain wall system. Background Technology

[0002] With the rapid development of the Internet of Things and smart construction technologies, the building curtain wall industry is gradually transforming towards intelligence and digitalization.

[0003] While traditional cable-stayed facades offer significant advantages in terms of visual appeal and structural performance, they lack effective monitoring methods during construction and operation, making it difficult to monitor the prestressing state and health of the cables in real time. Therefore, existing technologies suffer from the inability to monitor the cable condition in real time. Utility Model Content

[0004] This invention provides an intelligent cable and curtain wall system, which aims to solve the problem of the inability to monitor the status of cables in real time in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model discloses an intelligent cable, which includes: a cable body, the cable body including a central wire, an optical fiber sensor being provided on the central wire, the optical fiber sensor being coupled and fixedly connected to the central wire; a data line of the optical fiber sensor being led out from the end of the cable body, the data line being electrically connected to a monitoring system, the monitoring system being used to monitor the status of the cable body in real time.

[0007] According to a preferred embodiment of the present invention, the optical fiber sensor is a fiber optic grating sensor.

[0008] According to a preferred embodiment of the present invention, there are multiple fiber optic sensors.

[0009] According to a preferred embodiment of the present invention, the diameter of the optical fiber sensor is 0.1mm-0.2mm.

[0010] According to a preferred embodiment of the present invention, the optical fiber sensor is embedded in the surface of the central filament.

[0011] According to a preferred embodiment of the present invention, an anchor is provided at one end of the cable body, and the data line is led out from the inside of the anchor.

[0012] According to a preferred embodiment of the present invention, the lead-out portion of the data cable is covered with a protective sleeve, and the data cable is led out through the protective sleeve.

[0013] According to a preferred embodiment of the present invention, the protective sleeve is a stainless steel flexible tube, which is welded and fixed to the anchor, and the data cable is led out through the stainless steel flexible tube.

[0014] According to a preferred embodiment of the present invention, the cable body further includes multiple strands of steel wire, which are twisted together and fixed to the side of the central wire.

[0015] According to a preferred embodiment of the present invention, the steel wire includes a round steel wire and a Z-shaped steel wire, wherein the round steel wire is twisted and fixed to the circumferential side of the central wire, and the Z-shaped steel wire is twisted and fixed to the circumferential side of the round steel wire.

[0016] Secondly, this utility model discloses a curtain wall system, including the intelligent cable as described in any of the first aspects.

[0017] The advantages of this utility model compared with the prior art are:

[0018] The intelligent cable provided by this utility model has a central wire inside the cable body and an optical fiber sensor on the surface of the central wire. The optical fiber sensor can sense the stress, strain and temperature changes of the central wire and the cable body in real time. The data line of the optical fiber sensor is led out at one end of the cable body and transmits the data to the monitoring system. The monitoring system receives and processes the data from the optical fiber sensor, thereby realizing real-time monitoring and early warning of the cable body's status.

[0019] The intelligent cable provided by this utility model, by embedding fiber optic sensors into the cable and combining fiber optic sensing technology with a cloud data analysis platform, realizes real-time monitoring and early warning of cable force, which significantly improves the safety and maintainability of the curtain wall system. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a partial structural diagram of the curtain wall system provided in an embodiment of the present utility model;

[0022] Figure 2 This is a partial structural diagram of the curtain wall system provided in another direction according to an embodiment of the present utility model;

[0023] Figure 3 This is a cross-sectional view of the cable body provided in an embodiment of the present utility model.

[0024] The labels for the attached figures are as follows:

[0025] 100. Intelligent cable;

[0026] 10. Cable body;

[0027] 1. Central filament;

[0028] 2. Fiber optic sensor; 21. Data cable; 22. Protective sleeve;

[0029] 3. Anchorage;

[0030] 4. Steel wire; 41. Round steel wire; 42. Z-shaped steel wire. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1-3 As shown, this utility model provides an intelligent cable 100 for real-time monitoring and early warning of cable-stayed curtain walls, applicable to various types of curtain wall systems. The intelligent cable 100 includes a cable body 10, a central wire 1, an optical fiber sensor 2, and a monitoring system (not shown in the figure). The central wire 1 is disposed inside the cable body 10, and the optical fiber sensor 2 is fixedly coupled to the surface of the central wire 1. The optical fiber sensor 2 senses the stress, strain, and temperature changes of the cable body 10 in real time. The data line 21 of the optical fiber sensor 2 extends from the front end of the cable body 10 and is electrically connected to the monitoring system, enabling the monitoring system to receive and process the data from the optical fiber sensor 2, thus realizing real-time monitoring of the status of the cable body 10 for detection and early warning.

[0033] The intelligent cable 100 provided by this utility model has a central wire 1 inside the cable body 10, and an optical fiber sensor 2 is installed on the surface of the central wire 1. The optical fiber sensor 2 senses the stress, strain, and temperature changes of the central wire 1 and the cable body 10 in real time. The optical fiber sensor 2 utilizes the photosensitivity of the optical fiber material to sense key parameters such as stress, strain, and temperature of the cable body 10 in real time, thereby analyzing potential problems in the cable body 10 in a timely manner. The data line 21 of the optical fiber sensor 2 is led out of the cable body 10 and transmits the data to the monitoring system. The monitoring system receives and processes the data from the optical fiber sensor 2 to realize real-time monitoring and early warning of the status of the cable body 10.

[0034] The intelligent cable 100 provided by this utility model can provide early warning of abnormal conditions of the cable, such as excessive stress and fatigue damage, through real-time monitoring and data analysis by the monitoring system. This facilitates timely measures to avoid safety accidents. At the same time, because it can detect problems in time and carry out targeted maintenance, it avoids unnecessary comprehensive inspection and repair, which can effectively reduce maintenance costs and time costs.

[0035] To improve the detection accuracy of fiber optic sensor 2, a fiber optic grating sensor is selected. Fiber optic grating sensors utilize the grating structure within the optical fiber to achieve high sensitivity and accurate measurement of optical signals. Understandably, in another embodiment, fiber optic sensor 2 may also be selected from sensors such as spectral confocal sensors, fiber optic micro-bending sensors, and fiber optic evanescent wave sensors. Adaptive adjustments are made according to the characteristics of different sensors to allow the sensor to detect stress, strain, and temperature changes of the cable body 10 in real time. Furthermore, because fiber optic grating sensors are small, lightweight, and have a diameter of 0.1mm-0.2mm, they can be easily embedded inside the central wire 1 structure with minimal impact on its performance. Similarly, other types of sensors can be selected, which will not be elaborated upon here.

[0036] In order to simultaneously monitor physical quantities at different locations of the cable body 10 and improve the comprehensiveness and accuracy of monitoring, multiple fiber optic sensors 2 can be set and located at different locations of the cable body 10. Multiple sensors can be flexibly configured according to different monitoring needs. For example, they can be set at the front end, rear end and middle of the cable body 10 to achieve comprehensive detection and use data from multiple locations to improve the accuracy of the detection structure and enhance the flexibility and reliability of the monitoring system.

[0037] The fiber optic sensor 2 can be positioned on the central wire 1 in several ways. For example, it can be attached to the surface of the central wire 1, or it can be disposed inside the central wire 1. Alternatively, it can be embedded in the surface of the central wire 1. Embedding the fiber optic sensor 2 in the surface of the central wire 1 ensures close contact between the sensor and the central wire 1, improving the efficiency and accuracy of strain transmission. The embedded design helps reduce the relative displacement between the fiber optic sensor 2 and the central wire 1, thereby enhancing the coupling effect of the fiber optic sensor 2. Simultaneously, embedding the fiber optic sensor 2 in the surface of the central wire 1 allows for more direct sensing of strain changes in the central wire 1, reducing measurement errors. Direct contact between the fiber optic sensor 2 and the central wire 1 enables more accurate measurement of changes in physical quantities of the central wire 1, such as stress, strain, and temperature changes.

[0038] In the cable, the main function of the anchor 3 is to firmly fix the cable to both ends of the structure, ensuring that the cable will not shift or loosen when under stress. Therefore, the anchor 3 is set at one end of the cable body 10. At the same time, in order to facilitate data transmission, the data line 21 is led out from the inside of the anchor 3.

[0039] To protect the data cable 21 extending from the cable body 10 and prevent it from being damaged at the junction, the lead-out portion of the data cable 21 can be protected by an optical fiber cable. Additionally, a protective sleeve 22 can be provided over the lead-out portion of the data cable 21, through which the data cable 21 is led out, providing convenient conditions for future maintenance.

[0040] The protective sleeve 22 can be made of various materials, such as plastic, silicone, nylon braided material, and leather. Preferably, the protective sleeve 22 is a stainless steel flexible tube. The flexibility and strength of the stainless steel flexible tube can protect the data cable 21 from mechanical damage. At the same time, the stainless steel flexible tube can also act as a shield, reducing the impact of external electromagnetic interference (EMI) and radio frequency interference (RFI) on the data cable 21, ensuring the stability and accuracy of data transmission. The stainless steel flexible tube is welded and fixed to the anchor 3, ensuring that the data cable 21 will not loosen or be damaged due to vibration or stress of the cable body 10 during the lead-out process.

[0041] The cable body 10 also includes multiple steel wires 4, which are twisted and fixed to the sides of the central wire 1. The steel wires 4 provide the main mechanical properties, increasing the overall strength and stability of the cable. The fiber optic sensor 2 and the central wire 1 are responsible for sensing functions. The steel wires 4 include round steel wires 41 and Z-shaped steel wires 42. The round steel wires 41 are twisted and fixed to the sides of the central wire 1, and the Z-shaped steel wires 42 are twisted and fixed to the sides of the round steel wires 41. The twisting structure of the round steel wires 41 and Z-shaped steel wires 42 gives the steel wires 4 better flexibility, enabling them to adapt to different installation environments and stress conditions. This makes the entire steel wire structure more compact and stable, effectively dispersing and absorbing tensile force, improving the overall strength and tensile properties of the steel wires 4, and reducing stress concentration. The multi-layer twisting structure reduces fatigue damage to the steel wires 4 during use, extending their service life. The special shape of the Z-shaped steel wires 42 further enhances the fatigue resistance of the steel wires 4.

[0042] In addition, this utility model also provides a curtain wall system, such as Figure 1 and Figure 2 As shown, the system includes the intelligent cable 100 described in the above embodiments. The curtain wall system provided by this invention, by employing the intelligent cable 100 described in the above embodiments, can achieve real-time monitoring and early warning of cable tension, significantly improving the safety and maintainability of the curtain wall system.

[0043] Working principle:

[0044] Grating formation: Irradiating an optical fiber with a laser of a specific wavelength in a specific manner causes a permanent change in the refractive index of the fiber along the axial direction, forming a periodic or non-periodic spatial phase distribution, thereby forming a grating structure.

[0045] Bragg grating effect: The core of a fiber Bragg grating exhibits a periodic fringe distribution. When a broadband light source propagates through the grating region, incident light of a specific frequency is reflected back, while light of other frequencies is transmitted. The reflection condition is called the Bragg condition, and the wavelength of the reflected light depends on the grating period and the refractive index modulation depth.

[0046] Strain and temperature measurement: When the cable body 10 is subjected to external force or temperature change, the period and refractive index of the fiber optic grating will change, causing a shift in the wavelength of the reflected light. By measuring the change in the wavelength of the reflected light, the strain and temperature change of the cable body 10 can be accurately calculated.

[0047] Production steps:

[0048] 1. An optical fiber sensor 2 with a diameter of 0.1 mm is embedded in the surface of the central wire 1 of the cable body 10 and firmly coupled to the central wire 1 to ensure that the fiber optic grating sensor can accurately sense the strain and temperature changes of the cable body 10.

[0049] 2. Twist the center wire 1 and steel wire 4 of the embedded fiber optic sensor 2. The steel wire 4 provides the main mechanical properties, while the center wire 1 is responsible for the sensing function.

[0050] 3. The data line 21 of the fiber optic sensor 2 is led out from one end of the anchor 3 of the cable body 10. The lead-out part of the data line 21 is protected by high-strength fiber optic cable to ensure the stability and durability of the data line 21 during the installation and use of the cable body 10.

[0051] 4. At the junction of the fiber optic cable and the rigid anchor 3, the fiber optic cable, being a flexible material, is easily damaged by bending. To address this issue, a stainless steel flexible conduit 22 is welded onto the anchor 3. This effectively prevents the fiber optic cable from breaking at the junction and also protects a certain length of external fiber optic cable, providing convenience for future maintenance.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A smart cable, characterized in that, include: The cable body includes a center wire, on which an optical fiber sensor is mounted and fixedly coupled. A data line of the optical fiber sensor extends from the end of the cable body and is electrically connected to a monitoring system, which is used to monitor the status of the cable body in real time.

2. The intelligent cable according to claim 1, characterized in that, The fiber optic sensor is a fiber optic grating sensor.

3. The intelligent cable according to claim 1, characterized in that, The diameter of the fiber optic sensor is 0.1mm-0.2mm.

4. The intelligent cable according to claim 1, characterized in that, The fiber optic sensor is embedded in the surface of the central filament.

5. The intelligent cable according to claim 1, characterized in that, An anchor is provided at one end of the cable body, and the data line is led out from the inside of the anchor.

6. The intelligent cable according to claim 5, characterized in that, The data cable is covered with a protective sleeve at its lead-out portion, and the data cable is led out through the protective sleeve.

7. The intelligent cable according to claim 6, characterized in that, The protective sleeve is a stainless steel flexible tube, which is welded and fixed to the anchor, and the data cable is led out through the stainless steel flexible tube.

8. The intelligent cable according to claim 1, characterized in that, The cable body also includes multiple steel wires, which are twisted together and fixed to the side of the central wire.

9. A smart cable according to claim 8, characterized in that, The steel wire includes round steel wire and Z-shaped steel wire. The round steel wire is twisted and fixed to the circumferential side of the central wire, and the Z-shaped steel wire is twisted and fixed to the circumferential side of the round steel wire.

10. A curtain wall system, characterized in that, Including the smart cable as described in any one of claims 1 to 9.

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