Concrete pipeline attached optical fiber detection system and installation device and method thereof

Abstract

A concrete pipeline attached optical fiber detection system and its installation device and method, the detection system includes a control unit and a plurality of optical fiber sensors, a plurality of optical fiber sensors are arranged one by one with a plurality of pipe joints and are connected to the inner wall of the pipe joint, one end of each optical fiber sensor is provided with an embedded connection port, the other end is provided with a clamping groove connection port, the clamping groove connection port is connected with the embedded connection port, the control unit is connected with the embedded connection port of the optical fiber sensor located at the head, the optical fiber sensor is used for detecting the stress change of the pipeline and transmitting the change value to the control unit; the control unit is used for detecting the strain state of each pipe joint through the optical fiber sensor, and the strain data is converted into a curve, and a prewarning or alarm signal is sent when the strain or temperature change in the pipeline is detected to exceed the preset safety range. The design not only has large coverage area, high accuracy, but also has high reliability and is easy to use.

Description

Technical Field

[0001] This invention relates to the field of concrete pipe inspection technology, and in particular to a concrete pipe attached fiber optic inspection system and its installation device and method. Background Technology

[0002] With the development of trenchless technology, the application of pipe jacking in power tunnel construction has gradually increased. It not only offers fast construction speed and a high degree of automation, but also reduces interference with power equipment and flexibly adapts to complex geological conditions. As a critical facility for power transmission and distribution, power tunnels require high accuracy, safety, and efficiency in their construction. Pipe jacking is a trenchless construction technology that meets these requirements. However, due to the large length of transmission lines, monitoring the stress and strain of the concrete pipes during long-distance pipe jacking construction has become a challenge. To address this, engineering experts have implemented a series of strategies. They have installed detection equipment around the inside of the concrete pipes to monitor stress changes when pressure is applied at the top. Data analysis can determine the pressure propagation range and identify potentially disturbed pipe sections, allowing for targeted solutions to ensure the smooth progress of the pipe jacking project.

[0003] While existing monitoring and testing equipment for concrete pipes has greatly improved the quality and safety of projects, it still has some drawbacks and limitations. For example, its coverage area is small, failing to cover all concrete pipe sections, resulting in monitoring blind spots for some pipe sections or critical nodes, increasing safety risks. At the same time, under complex geological and environmental conditions, some monitoring methods may have accuracy and reliability issues, leading to false alarms or missed alarms. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and problems of existing monitoring equipment, such as small coverage area and poor accuracy, and to provide a concrete pipe attached fiber optic detection system with large coverage area and high accuracy, as well as its installation device and method.

[0005] To achieve the above objectives, the technical solution of the present invention is: a concrete pipe attached fiber optic detection system, comprising a control unit and multiple fiber optic sensors, wherein the multiple fiber optic sensors are arranged one-to-one with multiple pipe sections and are all connected to the inner wall of the pipe sections, each fiber optic sensor has an embedded connection port at one end and a slot connection port at the other end, the slot connection port and the embedded connection port are connected in cooperation, and the control unit is connected to the embedded connection port of the fiber optic sensor located at the head;

[0006] The fiber optic sensor is used to detect stress changes in the pipe section and transmit the stress change value to the control unit;

[0007] The control unit is used to detect the strain state of each pipe section through fiber optic sensors, convert the stress change value into a stress change curve, and issue an alarm when the stress change value inside the pipe section exceeds the preset safety range.

[0008] The control unit includes a fiber optic sensing system host, a remote module, and a device controller. The remote module is connected to the embedded connection port of the fiber optic sensor located at the head via an adapter cable. The fiber optic sensing system host is connected to the remote module via an extension fiber optic cable. The device controller is connected to the fiber optic sensing system host via a data cable.

[0009] The remote module is used to modulate and demodulate the optical signals transmitted by the fiber optic sensor and transmit the optical signals to the host of the fiber optic sensing system.

[0010] The fiber optic sensing system host is used to receive, analyze, and process optical signals, and transmit the processing results to the device controller.

[0011] The equipment controller is used to monitor and analyze the stress change value of the pipe section in real time based on the processing results.

[0012] An installation device for a concrete pipe attached fiber optic detection system is disclosed. The device is used to install a fiber optic sensor within the system. The device includes an installation plate, a deployment mechanism, a traveling mechanism, a cleaning mechanism, a glue injection mechanism, and multiple positioning rails. Each pipe section contains two symmetrically arranged positioning rails. The two positioning rails and the pipe section together form an installation groove for accommodating the fiber optic sensor. The deployment mechanism, traveling mechanism, cleaning mechanism, and glue injection mechanism are respectively installed on the installation plate. The traveling mechanism is slidably installed on the positioning rails. The traveling mechanism, cleaning mechanism, and glue injection mechanism are respectively connected to the control unit.

[0013] The deployment mechanism is used to lay the fiber optic sensor in the mounting groove along the length of the mounting groove.

[0014] The walking mechanism is used to move on the positioning track;

[0015] The cleaning mechanism is used to clean and collect impurities from the inner wall of the pipe section;

[0016] The glue injection mechanism is used to inject glue between the fiber optic sensor and the inner wall of the tube section for fixation.

[0017] The control unit is used to control the operation of the walking mechanism, the cleaning mechanism, and the glue injection mechanism respectively.

[0018] The positioning track includes a first support frame, a second support frame, and a third support frame connected in sequence. The first and third support frames are both elongated, and the second support frame is spiral. The first and third support frames are respectively located at both ends of the pipe section. The first and third support frames abut against the inner wall of the pipe section along the axial direction, and the outer circumferential surface of the second support frame abuts against the inner wall of the pipe section.

[0019] The positioning track has an L-shaped cross-section. The walking mechanism includes two drive motors, which are arranged one-to-one with the two positioning tracks and are both connected to the lower side of the mounting plate. The output end of each drive motor is connected to a drive wheel, which is rotatably connected to the vertical part of the positioning track. The two drive motors are respectively connected to the control unit.

[0020] The vertical part of the positioning track has a slot along its length, and the drive wheel is rotatably connected to the inner bottom wall of the slot.

[0021] The deployment mechanism includes a fixing plate, a sleeve, a clamping wheel, and a guide wheel. The fixing plate is connected to the upper side of the mounting plate, and a bracket is connected to one side of the fixing plate. The clamping wheel and the guide wheel are rotatably connected to the bracket. The clamping wheel and the guide wheel are provided with gaps for the fiber optic sensor to pass through. The sleeve is connected to one side of the fixing plate through multiple elastic strips. The sleeve is located above the gaps and its inner wall matches the shape of the fiber optic sensor.

[0022] The cleaning mechanism includes a collection box and two cleaning motors. The two cleaning motors are symmetrically mounted on the upper side of the mounting plate. The output ends of the cleaning motors pass through the mounting plate and are connected to rotating disks. Both rotating disks are located in the mounting groove and are arranged relative to the inner wall of the pipe section. Multiple scrapers are provided on the outer circumferential surface of each of the two rotating disks. The rotating disk on the left rotates clockwise, and the rotating disk on the right rotates counterclockwise. The collection box is connected to the lower side of the mounting plate via a support rod and is located in the mounting groove. The input end of the collection box is arranged relative to the output ends of the two rotating disks. The two cleaning motors are respectively connected to the control unit.

[0023] The glue injection mechanism includes a glue injection box, a valve, a glue injection tube, and a nozzle. The glue injection box is filled with epoxy resin glue. One end of the glue injection tube is connected to the lower side of the glue injection box. The valve is connected to one side of the glue injection tube. The nozzle is connected to the other end of the glue injection tube. The output end of the nozzle is arranged relative to the inner wall of the tube section. The valve is connected to the control unit.

[0024] An installation method for a concrete pipe attached fiber optic inspection system, the installation method being applied to an installation device for the concrete pipe attached fiber optic inspection system, the installation method comprising the following steps:

[0025] S1. First, select two positioning rails that match the structure of the fiber optic sensor and the pipe section. Then, install the two positioning rails side by side on the inner wall of the first pipe section so that the two positioning rails and the pipe section enclose and form an installation groove. Then, connect the walking mechanism to the beginning of the positioning rails and insert the fiber optic sensor into the deployment mechanism.

[0026] S2. The control unit controls the walking mechanism to move along the positioning track. At the same time, the control unit controls the cleaning mechanism to remove impurities from the inner wall of the pipe section. The control unit controls the glue injection mechanism to spray glue onto the inner wall of the pipe section. The installation mechanism places the fiber optic sensor in the mounting groove so that the fiber optic sensor is completely attached to the inner wall of the pipe section through the glue. When the walking mechanism moves to the end of the positioning track, the control unit controls the walking mechanism, cleaning mechanism and glue injection mechanism to stop working, remove the mounting plate from the end of the pipe section, and remove the impurities in the cleaning mechanism. The installation of the fiber optic sensor inside the first pipe section is completed.

[0027] S3. Install the positioning track on the inner wall of multiple pipe sections in sequence, then connect the walking mechanism to the beginning of the positioning track in the second pipe section, and insert the second fiber optic sensor into the laying mechanism. Follow the operation of step S to complete the installation of the fiber optic sensor in each pipe section in sequence.

[0028] S4. After connecting the first fiber optic sensor to the control unit, start the jacking of the pipe section. When the jacking of one pipe section is completed, connect the embedded connection port at the front end of the next pipe section to the slot connection port at the rear end of the previous pipe section so that the two adjacent fiber optic sensors can be connected. Repeat the previous operation until all pipe sections are jacked up and all fiber optic sensors are connected.

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

[0030] 1. In this invention, a concrete pipe-attached fiber optic inspection system, its installation device, and method are disclosed. Each pipe section is individually inspected using a fiber optic sensor. A data reading interface is provided at the port of each jacking pipe section. This interface can be used to connect multiple pipe sections and also to connect to a control unit to export and analyze the measured data, thus completely covering each pipe section. Furthermore, the fiber optic sensors within the installed pipe sections are interconnected, allowing the control unit to monitor the internal condition of the pipeline in real time. Therefore, this invention offers a large coverage area and high accuracy.

[0031] 2. In the concrete pipe adhesive fiber optic detection system and its installation device and method of the present invention, the positioning track adopts a spiral design, which improves the coverage area of ​​the pipe section, reduces monitoring blind spots, and achieves high accuracy. By using clamping wheels to press the fiber optic sensor, the connection of the fiber optic sensor is made more secure. During the laying of the fiber optic sensor, the sleeve is fitted onto the fiber optic sensor, and the fiber optic sensor is tensioned under the tension of the elastic strip, making the laying position of the fiber optic sensor more precise. Simultaneously, by setting guide wheels, the fiber optic sensor can be easily bent when the walking mechanism turns. By setting a scraper, impurities on the inner wall of the pipe section can be cleaned. After cleaning, the impurities are collected in a collection box, which can prevent the presence of impurities from causing adhesive failure, leading to loosening of the fiber optic sensor and a decrease in detection accuracy. Therefore, the present invention has high reliability and high accuracy.

[0032] 3. In the concrete pipe attached fiber optic detection system and its installation device and method of the present invention, when the pipe is subjected to external stress or temperature change, the concrete pipe will produce minute deformation or strain. These strains will cause minute morphological changes in the fiber optic sensor, and the minute morphological changes in the fiber optic sensor will cause changes in the internal light field distribution. These light field changes can be transmitted to a remote module through an optical cable adapter. The remote module can modulate and demodulate the optical signal to form an optical signal related to the strain change, and transmit it to the fiber optic sensing system host through an extended optical cable. The fiber optic sensing system host will analyze and process the received optical signal in real time. By comparing the changes in the optical signal, the strain or temperature change of the fiber-reinforced concrete pipe can be accurately measured. The detection system converts the processed data into readable information or graphics and displays it on the user interface. This allows operators to intuitively understand the status of the pipe and take necessary measures in a timely manner. If the detected strain change inside the pipe exceeds the preset safety range, the detection system will automatically issue a warning or alarm signal to remind the operator to check and maintain. Therefore, the present invention has high reliability and high accuracy.

[0033] 4. In this invention, a concrete pipe-attached fiber optic inspection system and its installation device and method, the modular and pluggable design facilitates installation, debugging, and maintenance, reducing operational complexity and difficulty, and improving operational flexibility and convenience. Simultaneously, the fiber optic sensor achieves very high measurement accuracy, enables long-distance transmission, and has good environmental adaptability, allowing for stable and reliable measurements even in harsh environments. It can simultaneously measure multiple parameters such as temperature, pressure, and strain, enabling monitoring of the mechanical parameters of concrete pipes not only during construction but also for effective monitoring within power tunnels during later maintenance. Therefore, this invention is convenient to use and offers high accuracy. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the concrete pipe attached optical fiber detection system of the present invention.

[0035] Figure 2 This is a schematic diagram of the pipe section and positioning track in this invention.

[0036] Figure 3 This is a schematic diagram of the positioning track and fiber optic sensor in this invention.

[0037] Figure 4 This is a schematic diagram of the positioning track, laying mechanism, walking mechanism, cleaning mechanism, and glue injection mechanism in this invention.

[0038] Figure 5 This is a schematic diagram of the layout mechanism, walking mechanism, cleaning mechanism, and glue injection mechanism in this invention.

[0039] Figure 6 This is a schematic diagram of the structure of the mounting plate, the walking mechanism, and the cleaning mechanism in this invention.

[0040] Figure 7 This is a structural block diagram of the concrete pipe attached optical fiber detection system of the present invention.

[0041] In the diagram: Control unit 1, Equipment controller 11, Fiber optic sensing system host 12, Remote module 13, Adapter cable 14, Extension fiber optic cable 15, Tube section 2, Fiber optic sensor 3, Embedded connection port 31, Slot connection port 32, Positioning rail 4, First support frame 41, Second support frame 42, Third support frame 43, Slot 44, Laying mechanism 5, Fixing plate 51, Bracket 52, Pressing wheel 53, Guide wheel 54, Tube sleeve 55, Elastic strip 56, Gap 57, Walking mechanism 6, Drive motor 61, Drive wheel 62, Cleaning mechanism 7, Cleaning motor 71, Rotating disk 72, Scraper 73, Collection box 74, Support rod 75, Glue injection mechanism 8, Glue injection box 81, Glue injection tube 82, Valve 83, Nozzle 84, Mounting slot 9, Mounting plate 10. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Example 1:

[0044] See Figures 1 to 7A concrete pipe attached fiber optic detection system includes a control unit 1 and multiple fiber optic sensors 3. The multiple fiber optic sensors 3 are arranged one-to-one with multiple pipe sections 2 and are all connected to the inner wall of the pipe section 2. Each fiber optic sensor 3 has an embedded connection port 31 at one end and a slot connection port 32 at the other end. The slot connection port 32 is connected to the embedded connection port 31. The control unit 1 is connected to the embedded connection port 31 of the fiber optic sensor 3 located at the head. The control unit 1 includes a fiber optic sensing system host 12, a remote module 13, and a device controller 11. The remote module 13 is connected to the embedded connection port 31 of the fiber optic sensor 3 located at the head through an adapter cable 14. The fiber optic sensing system host 12 is connected to the remote module 13 through an extension optical cable 15. The device controller 11 is connected to the fiber optic sensing system host 12 through a data cable.

[0045] The remote module 13 is used to modulate and demodulate the optical signal transmitted by the fiber optic sensor 3, and transmit the optical signal to the fiber optic sensing system host 12.

[0046] The fiber optic sensing system host 12 is used to receive, analyze and process optical signals, and transmit the processing results to the device controller 11.

[0047] The equipment controller 11 is used to monitor and analyze the stress change value of pipe section 2 in real time based on the processing results.

[0048] Example 2:

[0049] See Figures 2 to 6 An installation device for a concrete pipe attached fiber optic detection system is disclosed. The installation device includes an installation plate 10, a deployment mechanism 5, a walking mechanism 6, a cleaning mechanism 7, an adhesive injection mechanism 8, and multiple positioning rails 4. Each pipe section 2 is connected to two symmetrically arranged positioning rails 4. The two positioning rails 4 and the pipe section 2 together form an installation groove 9 for accommodating fiber optic sensors 3. The deployment mechanism 5, the walking mechanism 6, the cleaning mechanism 7, and the adhesive injection mechanism 8 are respectively installed on the installation plate 10. The walking mechanism 6 is slidably installed on the positioning rails 4. The walking mechanism 6, the cleaning mechanism 7, and the adhesive injection mechanism 8 are respectively connected to the control unit 1.

[0050] The laying mechanism 5 is used to lay the fiber optic sensor 3 in the mounting groove 9 along the length of the mounting groove 9.

[0051] The walking mechanism 6 is used to move on the positioning track 4;

[0052] The cleaning mechanism 7 is used to clean and collect impurities from the inner wall of the pipe section 2;

[0053] The glue injection mechanism 8 is used to inject glue between the fiber optic sensor 3 and the inner wall of the tube section 2 for fixation.

[0054] The control unit 1 is used to control the operation of the walking mechanism 6, the cleaning mechanism 7, and the glue injection mechanism 8 respectively.

[0055] Example 3:

[0056] An installation method for a concrete pipe-mounted fiber optic inspection system, the installation method comprising the following steps:

[0057] S1. First, select two positioning rails 4 that match the structure of the fiber optic sensor 3 and the pipe section 2. Then, install the two positioning rails 4 side by side on the inner wall of the first pipe section 2 so that the two positioning rails 4 and the pipe section 2 enclose and form the mounting groove 9. Then, connect the walking mechanism 6 to the first end of the positioning rails 4 and insert the fiber optic sensor 3 into the laying mechanism 5.

[0058] S2. Control unit 1 controls the walking mechanism 6 to work, so that the walking mechanism 6 moves along the positioning track 4. At the same time, control unit 1 controls the cleaning mechanism 7 to remove impurities from the inner wall of the pipe section 2. Control unit 1 controls the glue injection mechanism 8 to spray glue onto the inner wall of the pipe section 2. The placement mechanism 5 places the fiber optic sensor 3 in the mounting groove 9 so that the fiber optic sensor 3 is completely attached to the inner wall of the pipe section 2 through the glue. When the walking mechanism 6 moves to the end of the positioning track 4, control unit 1 controls the walking mechanism 6, cleaning mechanism 7 and glue injection mechanism 8 to stop working, remove the mounting plate 10 from the end of the pipe section 2, and remove the impurities in the cleaning mechanism 7. The installation of the fiber optic sensor 3 inside the first pipe section 2 is completed.

[0059] S3. Install the positioning track 4 on the inner wall of multiple pipe sections 2 in sequence, then connect the walking mechanism 6 to the first end of the positioning track 4 in the second pipe section 2, and insert the second fiber optic sensor 3 into the laying mechanism 5. Follow the operation of step S2 to complete the installation of the fiber optic sensor 3 in each pipe section 2 in sequence.

[0060] S4. After connecting the first fiber optic sensor 3 to the control unit 1, start the jacking of the pipe section 2. When the jacking of one pipe section 2 is completed, the embedded connection port 31 at the front end of the next pipe section 2 is connected to the slot connection port 32 at the rear end of the previous pipe section 2 so that the two adjacent fiber optic sensors 3 are connected. Repeat the previous operation until all pipe sections 2 are jacked up and all fiber optic sensors 3 are connected.

[0061] Example 4:

[0062] The basic content is the same as Example 2, except that:

[0063] See Figures 2 to 4The positioning track 4 includes a first support frame 41, a second support frame 42, and a third support frame 43 connected in sequence. The first support frame 41 and the third support frame 43 are both elongated, while the second support frame 42 is spiral-shaped. The first support frame 41 and the third support frame 43 are respectively located at both ends of the pipe section 2. The first support frame 41 and the third support frame 43 abut against the inner wall of the pipe section 2 along the axial direction of the pipe section 2, and the outer circumferential surface of the second support frame 42 abuts against the inner wall of the pipe section 2. The positioning track 4 has an L-shaped cross-section. The traveling mechanism 6 includes two drive motors 61, which are arranged one-to-one with the two positioning tracks 4 and are both connected to the lower side of the mounting plate 10. The output end of each drive motor 61 is connected to a drive wheel 62, which is rotatably connected to the vertical part of the positioning track 4. The two drive motors 61 are respectively connected to the control unit 1. The vertical part of the positioning track 4 has a slot 44 along its length, and the drive wheel 62 is rotatably connected to the inner bottom wall of the slot 44.

[0064] Example 5:

[0065] The basic content is the same as Example 2, except that:

[0066] See Figure 5 The deployment mechanism 5 includes a fixing plate 51, a sleeve 55, a clamping wheel 53, and a guide wheel 54. The fixing plate 51 is connected to the upper side of the mounting plate 10. A bracket 52 is connected to one side of the fixing plate 51. The clamping wheel 53 and the guide wheel 54 are rotatably connected to the bracket 52. The clamping wheel 53 and the guide wheel 54 are provided with gaps 57 for the fiber optic sensor 3 to pass through. The sleeve 55 is connected to one side of the fixing plate 51 through multiple elastic strips 56. The sleeve 55 is located on the upper side of the gap 57 and its inner wall matches the shape of the fiber optic sensor 3.

[0067] In this embodiment, the sleeve 55 is made of elastic material. The elastic strip 56 is initially in a compressed state. After pulling the elastic strip 56, one end of the fiber optic sensor 3 is inserted into the sleeve 55. After passing through the gap 57 between the clamping wheel 53 and the guide wheel 54, it fits against the inner wall of the tube section 2. Then, the elastic strip 56 is released, so that the sleeve 55 tightens the fiber optic sensor 3.

[0068] Example 6:

[0069] The basic content is the same as Example 2, except that:

[0070] See Figure 6The cleaning mechanism 7 includes a collection box 74 and two cleaning motors 71. The two cleaning motors 71 are symmetrically mounted on the upper side of the mounting plate 10. The output end of each cleaning motor 71 passes through the mounting plate 10 and is connected to a rotating disk 72. Both rotating disks 72 are located in the mounting groove 9 and are arranged relative to the inner wall of the pipe section 2. Multiple scrapers 73 are provided on the outer circumferential surface of each of the two rotating disks 72. The rotating disk 72 on the left rotates clockwise and the rotating disk 72 on the right rotates counterclockwise. The collection box 74 is connected to the lower side of the mounting plate 10 via a support rod 75 and is located in the mounting groove 9. The input end of the collection box 74 is arranged relative to the output ends of the two rotating disks 72. The two cleaning motors 71 are respectively connected to the control unit 1.

[0071] Example 7:

[0072] The basic content is the same as Example 2, except that:

[0073] See Figure 5 The glue injection mechanism 8 includes a glue injection box 81, a valve 83, a glue injection tube 82, and a nozzle 84. The glue injection box 81 is filled with epoxy resin glue. One end of the glue injection tube 82 is connected to the lower side of the glue injection box 81. The valve 83 is connected to one side of the glue injection tube 82. The nozzle 84 is connected to the other end of the glue injection tube 82. The output end of the nozzle 84 is arranged relative to the inner wall of the tube section 2. The valve 83 is connected to the control unit 1.

[0074] In this embodiment, the valve 83 is first opened by the control unit 1, so that the epoxy resin glue in the glue injection box 81 passes through the glue injection tube 82 into the nozzle 84. The nozzle 84 has a pointed end with the opening facing downward.

Claims

1. An installation device for a concrete pipe adhesive fiber optic inspection system, characterized in that: The installation device is used to install a fiber optic sensor (3) in a concrete pipe attached fiber optic detection system. The installation device includes an installation plate (10), a laying mechanism (5), a walking mechanism (6), a cleaning mechanism (7), an adhesive injection mechanism (8), and multiple positioning rails (4). Each pipe section (2) is connected to two symmetrically arranged positioning rails (4). The two positioning rails (4) and the pipe section (2) together form an installation groove (9) for accommodating the fiber optic sensor (3). The laying mechanism (5), the walking mechanism (6), the cleaning mechanism (7), and the adhesive injection mechanism (8) are respectively installed on the installation plate (10). The walking mechanism (6) is slidably installed on the positioning rails (4). The walking mechanism (6), the cleaning mechanism (7), and the adhesive injection mechanism (8) are respectively connected to the control unit (1). The deployment mechanism (5) includes a fixing plate (51), a sleeve (55), a clamping wheel (53), and a guide wheel (54). The fixing plate (51) is connected to the upper side of the mounting plate (10). A bracket (52) is connected to one side of the fixing plate (51). The clamping wheel (53) and the guide wheel (54) are rotatably connected to the bracket (52). The clamping wheel (53) and the guide wheel (54) are provided with a gap (57) for the fiber optic sensor (3) to pass through. The sleeve (55) is connected to one side of the fixing plate (51) through multiple elastic strips (56). The sleeve (55) is located on the upper side of the gap (57) and its inner wall matches the shape of the fiber optic sensor (3). The cleaning mechanism (7) includes a collection box (74) and two cleaning motors (71). The two cleaning motors (71) are symmetrically installed on the upper side of the mounting plate (10). The output end of the cleaning motor (71) passes through the mounting plate (10) and is connected to a rotating disk (72). The two rotating disks (72) are both located in the mounting groove (9) and are arranged relative to the inner wall of the pipe section (2). The outer circumferential surface of the two rotating disks (72) is provided with multiple scrapers (73). The rotating disk (72) on the left rotates clockwise and the rotating disk (72) on the right rotates counterclockwise. The collection box (74) is connected to the lower side of the mounting plate (10) through a support rod (75) and is located in the mounting groove (9). The input end of the collection box (74) is arranged relative to the output end of the two rotating disks (72). The two cleaning motors (71) are respectively connected to the control unit (1). The laying mechanism (5) is used to lay the fiber optic sensor (3) in the mounting groove (9) along the length direction of the mounting groove (9); The walking mechanism (6) is used to move on the positioning track (4); The cleaning mechanism (7) is used to clean and collect impurities from the inner wall of the pipe section (2); The glue injection mechanism (8) is used to inject glue between the fiber optic sensor (3) and the inner wall of the tube section (2) for fixation; The control unit (1) is used to control the operation of the walking mechanism (6), the cleaning mechanism (7), and the glue injection mechanism (8) respectively.

2. The installation device for a concrete pipe adhesive fiber optic inspection system according to claim 1, characterized in that: The positioning track (4) includes a first support frame (41), a second support frame (42), and a third support frame (43) connected in sequence. The first support frame (41) and the third support frame (43) are both elongated, and the second support frame (42) is spiral. The first support frame (41) and the third support frame (43) are respectively located at both ends of the pipe section (2). The first support frame (41) and the third support frame (43) abut against the inner wall of the pipe section (2) along the axial direction of the pipe section (2), and the outer peripheral surface of the second support frame (42) abuts against the inner wall of the pipe section (2).

3. The installation device for a concrete pipe adhesive fiber optic inspection system according to claim 2, characterized in that: The positioning track (4) has an L-shaped cross section. The walking mechanism (6) includes two drive motors (61). The two drive motors (61) are arranged one-to-one with the two positioning tracks (4) and are both connected to the lower side of the mounting plate (10). The output end of the drive motor (61) is connected to a drive wheel (62). The drive wheel (62) is tumblingly connected to the vertical part of the positioning track (4). The two drive motors (61) are respectively connected to the control unit (1).

4. The installation device for a concrete pipe adhesive fiber optic inspection system according to claim 3, characterized in that: The vertical part of the positioning track (4) has a slot (44) along its length, and the drive wheel (62) is rotatably connected to the inner bottom wall of the slot (44).

5. The installation device for a concrete pipe adhesive fiber optic inspection system according to claim 1, characterized in that: The glue injection mechanism (8) includes a glue injection box (81), a valve (83), a glue injection tube (82), and a nozzle (84). The glue injection box (81) is filled with epoxy resin glue. One end of the glue injection tube (82) is connected to the lower side of the glue injection box (81). The valve (83) is connected to one side of the glue injection tube (82). The nozzle (84) is connected to the other end of the glue injection tube (82). The output end of the nozzle (84) is arranged relative to the inner wall of the tube section (2). The valve (83) is connected to the control unit (1).

6. An installation method for a concrete pipe-attached fiber optic inspection system, characterized in that: The installation method is applied to the installation device of the concrete pipe attached fiber optic inspection system according to claim 1, and the installation method includes the following steps: S1. First, select two positioning tracks (4) that match the structure of the fiber optic sensor (3) and the pipe section (2). Then, install the two positioning tracks (4) side by side on the inner wall of the first pipe section (2) so that the two positioning tracks (4) and the pipe section (2) enclose to form an installation groove (9). Then, connect the walking mechanism (6) to the beginning of the positioning track (4) and insert the fiber optic sensor (3) into the laying mechanism (5). S2. Control unit (1) controls the walking mechanism (6) to work, so that the walking mechanism (6) moves along the positioning track (4). At the same time, control unit (1) controls the cleaning mechanism (7) to remove impurities from the inner wall of the pipe section (2). Control unit (1) controls the glue injection mechanism (8) to spray glue onto the inner wall of the pipe section (2). The laying mechanism (5) lays the fiber optic sensor (3) in the mounting groove (9) so that the fiber optic sensor (3) is completely attached to the inner wall of the pipe section (2) through the glue. When the walking mechanism (6) moves to the end of the positioning track (4), control unit (1) controls the walking mechanism (6), cleaning mechanism (7) and glue injection mechanism (8) to stop working, remove the mounting plate (10) from the end of the pipe section (2), and remove the impurities in the cleaning mechanism (7). The installation of the fiber optic sensor (3) inside the first pipe section (2) is completed. S3. Install the positioning track (4) sequentially on the inner wall of multiple pipe sections (2), then connect the walking mechanism (6) to the beginning of the positioning track (4) in the second pipe section (2), and insert the second fiber optic sensor (3) into the laying mechanism (5). Follow the operation of step S2 to complete the installation of the fiber optic sensor (3) in each pipe section (2). S4. After connecting the first fiber optic sensor (3) to the control unit (1), start the jacking of the pipe section (2). When the jacking of one pipe section (2) is completed, the embedded connection port (31) at the front end of the next pipe section (2) is connected to the slot connection port (32) at the rear end of the previous pipe section (2) so that the two adjacent fiber optic sensors (3) can be connected. Repeat the previous operation until all pipe sections (2) are jacked up and all fiber optic sensors (3) are connected.

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