Inhaul cable monitoring device and monitoring method
By designing a cable monitoring device including casing, cleaning mechanism, temperature control mechanism and monitoring mechanism, the problem of cable monitoring equipment affected by ice in cold environments in the prior art is solved, and higher monitoring accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202411810407.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-02-28
AI Technical Summary
Existing cable monitoring equipment is susceptible to the ice layer on the cable surface in cold environments, resulting in poor accuracy and reliability of monitoring results.
A cable monitoring device including a casing, a walking mechanism, a cleaning mechanism, a temperature control mechanism and a monitoring mechanism is designed. The casing sleeve is installed outside the cable, with a built-in cleaning mechanism and a temperature control mechanism to clean up contaminants and ice on the surface of the cable, and to detect flaws and data collection through monitoring mechanisms.
Effectively eliminate the interference of cable surface pollutants and ice on monitoring results, improve the accuracy and reliability of cable monitoring, and ensure accurate monitoring can be carried out in cold or humid environments.
Smart Images
Figure CN119534452A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cable monitoring, and in particular to a cable monitoring device and a cable monitoring method. Background Art
[0002] As an important component of large structures such as bridges and towers, the safety performance of cables is directly related to the stability and safety of the entire structure. Traditional cable monitoring technologies mainly include manual visual inspection and monitoring using cable monitoring equipment. Manual visual inspection relies on the experience and judgment of professionals, which is not only inefficient, but also easily interfered by human factors, resulting in low accuracy of monitoring results. The cable monitoring equipment in the existing technology is easily affected by pollutants on the cable surface, especially in cold environments where the cable surface is covered with ice. The monitoring equipment is greatly affected by the ice layer, which greatly reduces the monitoring effect and the accuracy and reliability of the monitoring results are poor. Summary of the invention
[0003] The main purpose of the present invention is to propose a monitoring device and a monitoring method for a cable, aiming to solve the technical problem that the cable monitoring equipment in the prior art is easily affected by pollutants on the cable surface, especially in a cold environment where the cable surface is covered with ice, the monitoring equipment is greatly affected by the ice layer, resulting in a significant reduction in the monitoring effect and poor accuracy and reliability of the monitoring results.
[0004] To achieve the above-mentioned purpose, the monitoring device of the cable proposed in the present invention includes a sleeve, a walking mechanism, a cleaning mechanism, a temperature control mechanism and a monitoring mechanism. The sleeve is in the shape of a hollow cylinder and is movably sleeved on the outside of the cable. The sleeve includes a first tube body and a second tube body. The first tube body and the second tube body are detachably connected, and a connecting seam is formed between the first tube body and the second tube body, and the extension direction of the connecting seam is consistent with the extension direction of the cable; the walking mechanism is used to drive the sleeve to move along the cable; the cleaning mechanism is arranged in the sleeve, and the cleaning mechanism can clean the surface of the cable when the sleeve moves along the cable; the temperature control mechanism is connected to the sleeve, and the temperature control mechanism Used to heat the cable; the monitoring mechanism includes external flaw detection equipment, internal flaw detection equipment and communication equipment, the external flaw detection equipment includes a camera and a support tube, the camera is connected to the pipe wall of the casing through the support tube, the camera is set toward the casing and is used to obtain surface image information of the cable, the internal flaw detection equipment includes a flaw detection signal transmitter and a flaw detection signal receiver, the flaw detection signal transmitter and the flaw detection signal receiver are respectively arranged at two ends of the casing, the flaw detection signal transmitter is used to transmit a flaw detection signal to the cable, the flaw detection signal receiver is used to receive the flaw detection signal on the cable, and the communication equipment is used to send the surface image information and the flaw detection signal to an external processor.
[0005] In one embodiment, the walking mechanism includes a first driving member and a walking assembly, the walking assembly includes a mounting rod and a walking wheel, one end of the mounting rod is connected to the inner wall of the sleeve, and the other end of the mounting rod is hinged to the walking wheel, the walking wheel can abut against the surface of the cable to form a gap between the sleeve and the surface of the cable, and the first driving member is used to drive the walking wheel to roll to drive the sleeve to move along the cable.
[0006] In one embodiment, there are multiple traveling assemblies, and the multiple traveling assemblies are circumferentially spaced and distributed along the surface of the cable, and the driving member is used to drive the traveling wheel in any one of the traveling assemblies to roll.
[0007] In one embodiment, the cleaning mechanism includes a brush head, which is located in the gap. The brush head includes bristles and a base, one side of the base is connected to the inner wall of the sleeve, the bristles are arranged on the side of the base away from the sleeve, and the ends of the bristles are in contact with the surface of the cable.
[0008] In one embodiment, the monitoring device further comprises a second driving member, and the second driving member is used to drive the casing to rotate relative to the cable when the casing moves along the cable.
[0009] In one embodiment, the temperature control mechanism is in the shape of a hollow cylinder, and the temperature control mechanism is sleeved outside the sleeve, and the temperature control mechanism is provided with an opening seam at a position corresponding to the connecting seam.
[0010] In one embodiment, a mounting cavity is formed in a tube wall of the sleeve, the mounting cavity extends along an extension direction of the sleeve, and the communication device is mounted in the mounting cavity.
[0011] In one embodiment, there are multiple installation cavities, which are distributed in the pipe wall of the casing along the circumferential direction and are spaced apart. The monitoring device also includes a power supply, which is arranged in the installation cavity except for the one where the communication device is installed.
[0012] In one embodiment, the flaw detection signal transmitter is an ultrasonic transmitter, and the flaw detection signal receiver is an ultrasonic receiver.
[0013] The present invention also proposes a monitoring method for a cable, which is applied with the above-mentioned monitoring device, and the monitoring method includes: determining the heating time according to the temperature of the location where the cable is located; sleeve-mounting the sleeve at a preset position of the cable; using the temperature control mechanism to heat the cable in the sleeve for the heating time; using the cleaning mechanism to clean the surface of the cable; using the external flaw detection equipment and the internal flaw detection equipment to respectively collect the surface image information and the flaw detection signal of the cleaned cable, and sending the surface image information and the flaw detection signal to an external processor through the communication equipment; using the walking mechanism to drive the sleeve to walk along the cable to the next preset position, and repeating the above steps.
[0014] The monitoring device and monitoring method of the cable proposed by the present invention, the sleeve of the monitoring device is sleeved outside the cable, and the contaminants on the surface of the cable within the sleeve range are cleaned by arranging a cleaning mechanism in the sleeve, and the monitoring mechanism is arranged to perform external and internal flaw detection on the cable after cleaning, which can eliminate the interference of the contaminants on the cable surface on the cable flaw detection structure, effectively improve the accuracy of the cable flaw detection, and accurately monitor the use status of the cable. By arranging a temperature control mechanism outside the sleeve to heat the cable within the sleeve range, the ice layer covering the cable surface is melted, and the cleaning mechanism cleans the cable surface, and then the monitoring mechanism monitors the cable after cleaning, so that the monitoring device proposed by the present invention can monitor the cable in cold or humid environments, and can eliminate the interference of the ice layer on the cable surface on the monitoring result, effectively improving the accuracy and reliability of the cable monitoring result. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0016] Figure 1 A schematic structural diagram of an embodiment of a cable monitoring device provided by the present invention;
[0017] Figure 2 A schematic flow chart of an embodiment of a cable monitoring method provided by the present invention.
[0018] Description of Figure Numbers:
[0019] 10. Sleeve; 11. First tube body; 12. Second tube body; 13. Connection seam; 20. Temperature control mechanism; 21. Opening seam; 30. Installation cavity; 40. Camera; 41. Support tube.
[0020] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0024] Traditional cable monitoring technology mainly includes manual visual inspection and monitoring using cable monitoring equipment. Manual visual inspection relies on the experience and judgment of professionals, which is not only inefficient but also easily interfered by human factors, resulting in low accuracy of monitoring results. The cable monitoring equipment in the prior art is easily affected by pollutants on the cable surface. In particular, in cold environments, when the cable surface is covered with ice, the monitoring equipment is greatly affected by the ice layer, resulting in a significant reduction in the monitoring effect and poor accuracy and reliability of the monitoring results.
[0025] The present invention provides a monitoring device for a cable, comprising a sleeve 10, a walking mechanism, a cleaning mechanism, a temperature control mechanism 20 and a monitoring mechanism. The sleeve 10 is in the shape of a hollow cylinder, and the sleeve 10 is movably sleeved outside the cable. The sleeve 10 comprises a first tube body 11 and a second tube body 12, and the first tube body 11 and the second tube body 12 are detachably connected, and a connecting seam 13 is formed between the first tube body 11 and the second tube body 12, and the extending direction of the connecting seam 13 is consistent with the extending direction of the cable; the cleaning mechanism is arranged in the sleeve 10, and the cleaning mechanism can clean the surface of the cable when the sleeve 10 moves along the cable; the temperature control mechanism 20 is connected to the sleeve 10, and the temperature control mechanism 20 is used to Heating the cable; the monitoring mechanism includes external flaw detection equipment, internal flaw detection equipment and communication equipment. The external flaw detection equipment includes a camera 40 and a support tube 41. The camera 40 is connected to the wall of the casing 10 through the support tube 41. The camera 40 is set toward the casing 10 and is used to obtain surface image information of the cable. The internal flaw detection equipment includes a flaw detection signal transmitter and a flaw detection signal receiver. The flaw detection signal transmitter and the flaw detection signal receiver are respectively set at two ends of the casing 10. The flaw detection signal transmitter is used to transmit flaw detection signals to the cable. The flaw detection signal receiver is used to receive flaw detection signals on the cable. The communication equipment is used to send surface image information and flaw detection signals to an external processor.
[0026] See also Figure 1 , Figure 1 The present invention is a schematic diagram of the structure of an embodiment of a monitoring device for a cable provided by the present invention. When the sleeve 10 is sleeved outside the cable, the extension direction of the sleeve 10 is the same as the extension direction of the cable, and the cleaning mechanism can clean the surface of the cable within the sleeve 10 sleeve range to remove pollutants on the surface of the cable; the first tube body 11 and the second tube body 12 are detachably connected, and the first tube body 11 and the second tube body 12 can be disassembled at the connection seam 13, so that the sleeve 10 can be sleeved outside the cable or removed from the cable. The temperature control mechanism 20 can heat the cable within the sleeve 10 to melt the ice layer on the cable surface, so that the cleaning mechanism can clean the cable surface; the support tube 41 extends outward from the tube wall of the sleeve 10 to provide support for the camera 40, and the distance between the camera 40 and the cable is moderate, which effectively expands the camera range of the camera 40 and facilitates the acquisition of clear and comprehensive cable surface image information; the flaw detection signal transmitter and the flaw detection signal receiver are respectively arranged at both ends of the sleeve 10 along its extension direction, and the flaw detection signal is sent and received to perform internal flaw detection on the cable within the sleeve 10. The communication device sends the surface image information obtained by the external flaw detection device and the flaw detection signal obtained by the internal flaw detection device to the external processor, so that the processor can comprehensively monitor the external and internal damage of the cable. After cleaning and monitoring the cable within the sleeve 10, the sleeve 10 is driven to move along the cable by the walking mechanism, so that the sleeve 10 can move to the next position to clean and monitor the cable.
[0027] The cable monitoring device proposed by the present invention has a sleeve 10 sleeved outside the cable. By setting a cleaning mechanism inside the sleeve 10 to clean the contaminants on the cable surface within the sleeve 10 sleeve range, and setting a monitoring mechanism to perform external and internal flaw detection on the cable after cleaning, it is possible to eliminate the interference of the cable surface contaminants on the cable flaw detection structure, effectively improve the accuracy of the cable flaw detection, and accurately monitor the use status of the cable. By setting a temperature control mechanism 20 outside the sleeve 10 to heat the cable within the sleeve 10 sleeve range, the ice layer covering the cable surface is melted, and after the cleaning mechanism cleans the cable surface, the monitoring mechanism is used to monitor the cable after cleaning, so that the monitoring device proposed by the present invention can monitor the cable in cold or humid environments, and can eliminate the interference of the ice layer on the cable surface on the monitoring result, effectively improving the accuracy and reliability of the cable monitoring result.
[0028] In one embodiment, the walking mechanism includes a first driving member and a walking assembly, the walking assembly includes a mounting rod and a walking wheel, one end of the mounting rod is connected to the inner wall of the sleeve 10, and the other end of the mounting rod is hinged with a walking wheel, the walking wheel can abut against the surface of the cable to form a gap between the sleeve 10 and the surface of the cable, and the first driving member is used to drive the walking wheel to roll to drive the sleeve 10 to move along the cable.
[0029] It can be understood that the sleeve 10 is sleeved outside the cable, the inner wall of the sleeve 10 is in contact with the cable through the walking assembly, and the part of the sleeve 10 other than the walking assembly is spaced apart from the cable. The sleeve 10 realizes the movement of the sleeve 10 on the cable through the rolling cooperation of the walking wheel and the cable, which effectively reduces the friction resistance between the sleeve 10 and the cable and improves the walking efficiency of the monitoring device. The first driving member is responsible for providing power to drive the rolling of the walking wheel to facilitate the continuous movement of the sleeve 10. The gap between the sleeve 10 and the cable facilitates the falling of pollutants cleaned by the cleaning mechanism to prevent pollutants from clogging the sleeve 10.
[0030] In one embodiment, there are multiple traveling assemblies, which are circumferentially spaced and distributed along the surface of the cable, and the driving member is used to drive the traveling wheel in any traveling assembly to roll.
[0031] Furthermore, multiple walking components are distributed circumferentially and spaced along the surface of the cable, which helps to disperse the load of the casing 10 when it is traveling, reduce the wear of a single walking component, and extend the service life. In addition, multiple walking components increase the contact points between the casing 10 and the cable, and multiple walking components provide support to the casing 10 from multiple directions, thereby improving the stability of the traveling mechanism and ensuring that the casing 10 travels stably along the cable.
[0032] In one embodiment, the cleaning mechanism includes a brush head, which is located in the gap. The brush head includes bristles and a base. One side of the base is connected to the inner wall of the sleeve 10, and the bristles are arranged on the side of the base away from the sleeve 10. The ends of the bristles are in contact with the surface of the cable.
[0033] It is understandable that the ends of the bristles abut against the surface of the cable, and when the sleeve 10 moves along the cable, the sleeve 10 drives the cleaning mechanism to move relative to the cable, and the ends of the bristles rub against the cable to remove pollutants on the cable surface through the bristles, which is convenient for subsequent monitoring. The cleaning process of the cable surface by the cleaning mechanism is carried out synchronously with the movement of the sleeve 10, which effectively saves time and improves the monitoring efficiency.
[0034] In one embodiment, the monitoring device further comprises a second driving member, and the second driving member is used to drive the casing 10 to rotate relative to the cable when the casing 10 moves along the cable.
[0035] It should be noted that when the first driving member drives the sleeve 10 to move along the extension direction of the cable, the second driving member drives the sleeve 10 to rotate along the axial direction of the cable, so that the cleaning mechanism can clean the cable surface at multiple angles, effectively improving the cleaning angle. At the same time, the camera 40 can monitor the cable surface at multiple angles to ensure comprehensive monitoring of the cable, effectively improving the monitoring accuracy.
[0036] In one embodiment, the temperature control mechanism 20 is in a hollow cylindrical shape, and the temperature control mechanism 20 is sleeved outside the sleeve 10 . An opening seam 21 is provided at a position of the temperature control mechanism 20 corresponding to the connection seam 13 .
[0037] See also Figure 1 The temperature control mechanism 20 is designed as a hollow cylinder, which matches the shape of the sleeve 10, so that the temperature control mechanism 20 can evenly heat the surface of the cable and improve the heating effect. The temperature control mechanism 20 is sleeved outside the sleeve 10, so that the temperature control mechanism 20 does not interfere with the cleaning mechanism and the walking mechanism.
[0038] In one embodiment, a mounting cavity 30 is defined in the wall of the sleeve 10 . The mounting cavity 30 extends along the extending direction of the sleeve 10 , and the communication device is installed in the mounting cavity 30 .
[0039] It can be understood that the sleeve 10 has a certain thickness, the installation cavity 30 is opened between the outer wall and the inner wall of the sleeve 10, and the extension direction of the installation cavity 30 is consistent with the extension direction of the sleeve 10. The outer wall of the sleeve 10 separates the installation cavity 30 from the equipment outside the sleeve 10, and the inner wall of the sleeve 10 separates the installation cavity 30 from the equipment inside the sleeve 10, providing a safe and stable installation space for communication equipment, and effectively preventing pollutants on the surface of the cable or water melted from the ice layer from entering the installation cavity 30.
[0040] In one embodiment, there are multiple installation cavities 30, which are distributed in the pipe wall of the casing 10 along the circumferential direction. The monitoring device also includes a power supply, which is arranged in the installation cavity 30 except for the communication device.
[0041] See also Figure 1 In one embodiment, the number of the mounting cavities 30 is two, and the two mounting cavities 30 are arranged on both sides of the casing 10, one of which is used to install the communication equipment, and the other is used to accommodate the power supply. This layout helps to balance the weight and pressure distribution of the casing 10 and reduce the structural stress caused by the concentrated load. It can be understood that the monitoring device is powered by the built-in power supply in the mounting cavity 30.
[0042] In one embodiment, the flaw detection signal transmitter is an ultrasonic transmitter, and the flaw detection signal receiver is an ultrasonic receiver.
[0043] It should be noted that the ultrasonic method is used to perform internal flaw detection on the cable, and the ultrasonic generator and the ultrasonic receiver are respectively arranged at both ends of the sleeve 10 in the extension direction, so that the sleeve 10 can reduce the situation where the ultrasonic wave diffuses outside the cable and causes energy attenuation, and the ultrasonic wave can be more concentrated on the cable, ensuring that the flaw detection signal has high sensitivity and accuracy. The ultrasonic transmitter and the ultrasonic receiver only perform flaw detection on the cable within the range of the sleeve 10 at a time, and the monitoring range is small, which can avoid the energy attenuation caused by the long-distance transmission of the ultrasonic wave and improve the monitoring accuracy.
[0044] The present invention also proposes a cable monitoring method, which uses the above-mentioned monitoring device. The specific structure of the monitoring device refers to the above-mentioned embodiment. Since the cable monitoring method adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. The cable monitoring method includes the steps of:
[0045] S10: Determine the heating time according to the temperature at the location of the cable;
[0046] S20: Sleeve the sleeve at a preset position of the cable;
[0047] S30: heating the cable in the sleeve by using the temperature control mechanism for the heating time;
[0048] S40: Cleaning the surface of the cable using the cleaning mechanism;
[0049] S50: using the external flaw detection device and the internal flaw detection device to respectively collect the surface image information and the flaw detection signal of the cleaned cable, and sending the surface image information and the flaw detection signal to an external processor through the communication device;
[0050] S60: using the walking mechanism to drive the sleeve to move along the cable to the next preset position, and repeating the above steps.
[0051] See also Figure 2 , Figure 2 This is a flow chart of an embodiment of the cable monitoring method provided by the present invention. It should be noted that by conducting experiments to determine the control relationship curve between the air temperature and the heating time of the temperature control mechanism, the heating time required for melting the ice layer on the cable surface can be determined according to the on-site air temperature, ensuring that the ice layer on the cable surface is completely melted, avoiding the ice layer from affecting the monitoring results, ensuring that the monitoring results have high accuracy and reliability, and avoiding the casing staying too long to affect the monitoring efficiency, so as to facilitate rapid continuous monitoring of the cable.
[0052] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A cable monitoring device, characterized in that: include: A sleeve, the sleeve is in a hollow cylindrical shape, the sleeve is movably sleeved outside the cable, the sleeve comprises a first tube body and a second tube body, the first tube body and the second tube body are detachably connected, and a connection seam is formed between the first tube body and the second tube body, and the extension direction of the connection seam is consistent with the extension direction of the cable; A walking mechanism, the walking mechanism is used to drive the sleeve to move along the cable; A cleaning mechanism, wherein the cleaning mechanism is disposed in the sleeve and can clean the surface of the cable when the sleeve moves along the cable; A temperature control mechanism, the temperature control mechanism is connected to the sleeve, and the temperature control mechanism is used to heat the cable; A monitoring mechanism, the monitoring mechanism includes external flaw detection equipment, internal flaw detection equipment and communication equipment, the external flaw detection equipment includes a camera and a support tube, the camera is connected to the pipe wall of the casing through the support tube, the camera is set toward the casing and is used to obtain surface image information of the cable, the internal flaw detection equipment includes a flaw detection signal transmitter and a flaw detection signal receiver, the flaw detection signal transmitter and the flaw detection signal receiver are respectively set at two ends of the casing, the flaw detection signal transmitter is used to transmit a flaw detection signal to the cable, the flaw detection signal receiver is used to receive the flaw detection signal on the cable, and the communication equipment is used to send the surface image information and the flaw detection signal to an external processor.
2. The cable monitoring device according to claim 1, characterized in that: The walking mechanism includes a first driving member and a walking assembly, and the walking assembly includes a mounting rod and a walking wheel. One end of the mounting rod is connected to the inner wall of the sleeve, and the other end of the mounting rod is hinged with the walking wheel. The walking wheel can abut against the surface of the cable to form a gap between the sleeve and the surface of the cable. The first driving member is used to drive the walking wheel to roll, so as to drive the sleeve to move along the cable.
3. The cable monitoring device according to claim 2, characterized in that: There are multiple traveling components, and the multiple traveling components are circumferentially spaced and distributed along the surface of the cable. The driving member is used to drive the traveling wheel in any of the traveling components to roll.
4. The cable monitoring device according to claim 2, characterized in that: The cleaning mechanism includes a brush head, which is located in the gap. The brush head includes bristles and a base. One side of the base is connected to the inner wall of the sleeve. The bristles are arranged on the side of the base away from the sleeve. The ends of the bristles are in contact with the surface of the cable.
5. The cable monitoring device according to any one of claims 1 to 4, characterized in that: The monitoring device further comprises a second driving member, and the second driving member is used for driving the casing to rotate relative to the cable when the casing moves along the cable.
6. The monitoring device for a cable according to any one of claims 1 to 4, characterized in that: The temperature control mechanism is in the shape of a hollow cylinder, and is sleeved outside the sleeve. The temperature control mechanism is provided with an opening seam at a position corresponding to the connecting seam.
7. The monitoring device for a cable according to any one of claims 1 to 4, characterized in that: An installation cavity is provided in the tube wall of the sleeve, the installation cavity extends along the extension direction of the sleeve, and the communication device is installed in the installation cavity.
8. The cable monitoring device according to claim 7, characterized in that: There are multiple installation cavities, which are distributed in the pipe wall of the casing at intervals along the circumferential direction. The monitoring device also includes a power supply, which is arranged in the installation cavity except for the one where the communication equipment is installed.
9. The cable monitoring device according to any one of claims 1 to 4, characterized in that: The flaw detection signal transmitter is an ultrasonic transmitter, and the flaw detection signal receiver is an ultrasonic receiver.
10. A method for monitoring a cable, characterized in that: A monitoring device as claimed in any one of claims 1 to 9 is used, and the monitoring method comprises: Determining the heating time according to the temperature at the location of the cable; Sleeve the sleeve at a preset position of the cable; Using the temperature control mechanism to heat the cable in the sleeve for the heating time; Using the cleaning mechanism to clean the surface of the cable; Using the external flaw detection device and the internal flaw detection device to respectively collect the surface image information and the flaw detection signal of the cleaned cable, and sending the surface image information and the flaw detection signal to an external processor through the communication device; The sleeve is driven by the walking mechanism to move along the cable to the next preset position, and the above steps are repeated.