An automatic follow-up optical fiber detection system and detection method

Abstract

The application discloses an automatic following optical fiber detection system, which comprises a wire arranging support, an optical fiber guide wheel seat, an optical fiber guide wheel, an optical fiber sensor support, a sensor adjusting support, a sensor, a servo motor and a transmission mechanism; the optical fiber guide wheel is arranged on the wire arranging support through the optical fiber guide wheel seat; one end of the optical fiber sensor support is connected with the sensor adjusting support, and the other end of the sensor adjusting support is arranged on a guide wheel shaft of the optical fiber guide wheel seat; the sensor is arranged on the optical fiber sensor support; the servo motor is arranged on the wire arranging support; a controller controls the servo motor to work, so that the transmission mechanism is controlled to move, and then the angle of the sensor adjusting support is controlled to be adjusted, so that the right optical fiber detection sensor or the left optical fiber sensor keeps a dynamic constant relative position with the optical fiber. The application further provides an automatic following optical fiber detection method. The application can realize accurate detection of the position of the optical fiber.

Description

Technical Field

[0001] This invention belongs to the field of optical fiber production, and specifically relates to an automatic optical fiber tracking detection system and detection method. Background Technology

[0002] In optical fiber production, it is often necessary to detect the position of the optical fibers, such as during fiber cabling. Because optical fibers have a relatively small diameter and are colorless and transparent, the sensors used for fiber detection have stringent requirements for the detection environment and methods. In actual production, this often results in suboptimal detection performance, easily leading to false triggering or failure to trigger the sensors.

[0003] Fiber optic cable laying typically employs a linearly driven cable laying device. Existing linearly driven cable laying devices rely on manually adjusting the sensor position to detect the fiber's location during cable laying. As the fiber winds longer and more fiber accumulates on the reel, the angular position of the fiber changes significantly between a full and nearly empty reel. The fiber sensor's detection range may not be able to cover these changes, exceeding the sensor's effective detection distance and thus failing to detect the fiber's position. Summary of the Invention

[0004] The main objective of this invention is to provide an automatic fiber optic tracking detection system and method. This system and method can ensure that the sensor and the fiber remain relatively stationary when the fiber optic angle changes, thereby achieving fiber optic position detection.

[0005] The technical solution adopted in this invention is:

[0006] An automatic fiber optic detection system includes a cable tray, a fiber optic guide wheel seat, a fiber optic guide wheel, a fiber optic sensor bracket, a sensor adjustment bracket, a right-side fiber optic detection sensor, a left-side fiber optic sensor, a servo motor, and a transmission mechanism.

[0007] There are multiple fiber optic guide wheel seats, which are mounted on the cable tray; the fiber optic guide wheels are mounted on the fiber optic guide wheel seats;

[0008] The fiber optic sensor bracket is connected to one end of the sensor adjustment bracket, and the other end of the sensor adjustment bracket is mounted on the guide wheel shaft on the fiber optic guide wheel seat at the bottom of the cable bracket. The sensor adjustment bracket can rotate around the guide wheel shaft. The fiber optic cable passes through the fiber optic guide wheel and the fiber optic sensor bracket in sequence and is wound around the fiber optic disc.

[0009] The right-side fiber optic detection sensor and the left-side fiber optic sensor are mounted on the fiber optic sensor bracket.

[0010] The servo motor is mounted on the cable tray and connected to the controller; the output end of the servo motor is connected to the transmission mechanism, and the transmission mechanism is connected to the sensor adjustment bracket; the controller controls the servo motor to work, thereby controlling the movement of the transmission mechanism, and then controlling the sensor adjustment bracket to adjust the angle, so that the right fiber optic detection sensor or the left fiber optic sensor maintains a dynamic and constant relative position with the fiber optic cable.

[0011] According to the above scheme, the transmission mechanism includes a large synchronous pulley, a small synchronous pulley, and a synchronous belt;

[0012] The large synchronous pulley is mounted on the sensor adjustment bracket; the small synchronous pulley is mounted on the cable tray bracket; the servo motor controls the rotation of the small synchronous pulley;

[0013] The timing belt sleeve is on the large and small timing pulleys;

[0014] The servo motor drives the small synchronous pulley to rotate, which in turn drives the synchronous belt and the large synchronous pulley to rotate. This, in turn, causes the sensor adjustment bracket to rotate around the guide wheel shaft by a certain angle, thereby causing the fiber optic sensor bracket to rotate by a certain angle, so that the right fiber optic detection sensor or the left fiber optic sensor maintains a dynamic and constant relative position with the fiber optic cable.

[0015] According to the above scheme, the sensor adjustment bracket includes a connecting rod, the upper end of which is mounted on the guide wheel shaft on the fiber guide wheel seat at the lowest end of the cable bracket, and the connecting rod can rotate around the guide wheel shaft.

[0016] According to the above scheme, the fiber optic sensor bracket includes a U-shaped frame;

[0017] One of the vertical bars of the U-shaped frame is connected to the sensor adjustment bracket, and a sensor support is installed on the other vertical bar of the U-shaped frame. The right fiber optic detection sensor and the left fiber optic sensor are installed on the sensor support; the fiber optic cable passes between the right fiber optic detection sensor and the left fiber optic sensor.

[0018] According to the above scheme, the cable tray is placed on the slide rail and can move along the slide rail.

[0019] According to the above scheme, the sensor adjustment bracket adjusts the angle.

[0020] Where R3 is the diameter of the guide wheel on the bottommost fiber guide wheel seat of the cable tray, R2 is the radius of the fiber on the fiber tray, L is the distance between the center E of the guide wheel on the bottommost fiber guide wheel seat of the cable tray and the center F of the fiber tray; θ is the angle between the fiber segment and the straight line segment L, and also the angle between the tangent of the fiber and the guide wheel and the fiber tray and L.

[0021] The present invention also provides an automatic fiber optic tracking detection method, which employs the aforementioned automatic fiber optic tracking detection system.

[0022] Preferably, the method includes the following steps:

[0023] 1) Input the finished optical fiber into the production management system to obtain the optical fiber segment length information, and transmit the segment length information to the controller; the controller calculates the corresponding optical fiber segment length and the optical fiber roll diameter wound on the corresponding type of reel;

[0024] 2) The controller controls the transmission mechanism to move the sensor adjustment bracket according to the fiber diameter and the sensor adjustment bracket adjustment angle θ, thereby moving the fiber sensor bracket, so that the right fiber detection sensor or the left fiber sensor maintains a dynamic and constant relative position with the fiber, which meets the sensor detection range.

[0025] The principle is as follows: Since the fiber guide wheel of the optical fiber is always tangent to the bypassed optical fiber, when the path of tangency between the optical fiber and the fiber guide wheel changes, the relative position of the optical fiber sensor bracket can be found by adjusting the position of the bracket. This ensures that when the position of the optical fiber changes, the point on the optical fiber sensor bracket remains relatively stationary relative to the optical fiber. The controller can then calculate the rotation angle, and the servo drive mechanism can rotate the bracket by the corresponding angle, thus maintaining the relative position between the sensor and the optical fiber at all times.

[0026] The beneficial effects of this invention are as follows:

[0027] By setting up a fiber optic sensor bracket, a sensor adjustment bracket, and a transmission mechanism, the fiber optic sensor bracket moves with the transmission mechanism, thus ensuring that the sensor and the fiber optic remain relatively stationary when the fiber optic angle changes. This enables fiber optic position detection, and the detection signal is used to reverse the cable routing, preventing the fiber optic cable from fraying and jumping off the guide wheel, while also preventing the fiber optic from being pulled, which could lead to scratches or breakage. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of an automatic fiber optic tracking detection system.

[0030] Figure 2 This is a connection diagram of the fiber optic guide wheel, fiber optic sensor bracket, sensor adjustment bracket, right-side fiber optic detection sensor, and left-side fiber optic sensor.

[0031] Figure 3This is a side view of the automatic fiber optic detection system.

[0032] Figure 4 This is a structural schematic diagram of an automatic fiber optic tracking detection system from another perspective.

[0033] Figure 5 This is a schematic diagram of the automatic following fiber optic detection system moving to the center of the fiber optic disk;

[0034] Figure 6 This is a schematic diagram of the automatic following fiber optic detection system moving to both sides of the fiber optic disk;

[0035] Figure 7 This is a schematic diagram of the sensor's detection process;

[0036] Figure 8 This is a schematic diagram of the angle adjustment process for the fiber optic sensor bracket;

[0037] Figure 9 This is a schematic diagram showing the angle adjustment of the fiber optic sensor bracket;

[0038] Figure 10 This is a schematic diagram of an automatic fiber optic tracking detection system test.

[0039] Figure 11 This is a flowchart of the automatic fiber optic tracking detection method;

[0040] In the diagram: 1. Fiber optic guide wheel, 2. Fiber optic cable, 3. Cable tray, 4. Servo motor, 5. Fiber optic sensor bracket, 6. Fiber optic disc, 7. Fiber optic guide wheel seat, 8. Sensor adjustment bracket, 9. Large synchronous pulley, 10. Small synchronous pulley, 11. Synchronous belt, 12. Right-side fiber optic detection sensor, 13. Left-side fiber optic sensor. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] Example 1

[0043] See Figures 1-4An automatic fiber optic detection system includes a cable tray 3, fiber optic guide wheel seats 7, fiber optic guide wheels 1, fiber optic sensor brackets 5, sensor adjustment brackets 8, a right-side fiber optic detection sensor 12, a left-side fiber optic sensor 13, a servo motor 4, and a transmission mechanism. There are three fiber optic guide wheel seats 7, arranged sequentially from top to bottom on the cable tray 3. Each fiber optic guide wheel seat 7 corresponds to one fiber optic guide wheel 1, and the fiber optic guide wheel 1 is mounted on the fiber optic guide wheel seat 7. The fiber optic sensor bracket 5 is connected to one end of the sensor adjustment bracket 8, and the other end of the sensor adjustment bracket 8 is mounted on the guide wheel shaft on the lowest fiber optic guide wheel seat 7, allowing the sensor adjustment bracket 8 to rotate around the guide wheel shaft. The right-side fiber optic detection sensor 12 and the left-side fiber optic sensor 13 are mounted on the fiber optic sensor bracket 5. The fiber optic cable 2 passes sequentially through the fiber optic guide wheel 1 and the fiber optic sensor bracket 8, and is wound around a fiber optic disc 6, passing between the right-side fiber optic detection sensor 12 and the left-side fiber optic sensor 13. Servo motor 4 is mounted on cable bracket 3 and connected to controller; the output end of servo motor 4 is connected to transmission mechanism, and transmission mechanism is connected to sensor adjustment bracket 8; controller controls servo motor 4 to work, thereby controlling transmission mechanism to move, and then controlling sensor adjustment bracket 8 to adjust angle, so that the right fiber optic detection sensor 12 or the left fiber optic sensor 13 and fiber optic 2 maintain a dynamic and constant relative position.

[0044] In this embodiment, the transmission mechanism includes a large synchronous pulley 9, a small synchronous pulley 10, and a synchronous belt 11. The large synchronous pulley 9 is mounted on the sensor adjustment bracket 8, and the small synchronous pulley 10 is mounted on the cable tray bracket 3. The servo motor 4 controls the rotation of the small synchronous pulley 10. The synchronous belt 11 is fitted onto the large synchronous pulley 9 and the small synchronous pulley 10. The servo motor 4 drives the small synchronous pulley 10 to rotate, which in turn drives the synchronous belt 11 and the large synchronous pulley 9 to rotate, thereby causing the sensor adjustment bracket 8 to rotate around the guide wheel axis by a certain angle. This causes the fiber optic sensor bracket 5 to rotate by a certain angle, ensuring that the right-side fiber optic detection sensor 12 or the left-side fiber optic sensor 13 maintains a dynamic and constant relative position with the fiber optic 2. Of course, other structures can also be used for the transmission mechanism, as long as they can drive the sensor adjustment bracket 8 to rotate.

[0045] In this embodiment, to ensure a simple, stable, and reliable structure, the sensor adjustment bracket 8 includes a connecting rod. The upper end of the connecting rod is mounted on the guide wheel shaft of the fiber optic guide wheel seat 7 at the lowest end of the cable bracket 3, and the connecting rod can rotate around the guide wheel shaft. The fiber optic sensor bracket 5 includes a U-shaped frame; one of the vertical rods of the U-shaped frame is connected to the lower end of the connecting rod, and a sensor support is mounted on the other vertical rod of the U-shaped frame. The right-side fiber optic detection sensor 12 and the left-side fiber optic sensor 13 are mounted on the sensor support. The cable bracket 3 is placed on a slide rail, and the controller controls the cable bracket 3 to move along the slide rail.

[0046] Preferably, the sensor adjustment bracket 8 adjusts the angle.

[0047] Where R3 is the diameter of the guide wheel on the bottommost fiber guide wheel seat of the cable tray, R2 is the radius of the fiber on the fiber tray, L is the distance between the center E of the guide wheel on the bottommost fiber guide wheel seat of the cable tray and the center F of the fiber tray; θ is the angle between the fiber segment and the straight line segment L, and also the angle between the tangent of the fiber and the guide wheel and the fiber tray and L.

[0048] The design process of the automatic fiber optic tracking detection system is as follows:

[0049] like Figure 5 and Figure 6 As shown, Figure 5 During fiber optic cabling, the speed V1 of the cabling device (cabling bracket 3) is the same as the speed V2 of the horizontal movement of the fiber. When the fiber moves horizontally to the flange edge of the fiber reel 6, the horizontal movement direction of fiber 2 needs to be reversed. At this time, the cabling device also needs to be reversed accordingly, thus ensuring that the fibers wound on the fiber reel 6 are arranged in a standard spiral pattern (the spiral directions of fibers between adjacent fiber layers are opposite). To ensure that fiber 2 does not unravel and jump out of the fiber guide wheel 1, while also preventing the fiber from being pulled, which could cause scratches or breakage, the cabling device (cabling bracket 3) must move back and forth at a regular speed with A and B as the extreme positions. The speed V of this back-and-forth movement must be related to the linear velocity of the fiber and the fiber cabling pitch. However, during the fiber optic reel laying stage, the cabling configuration of each layer on the fiber optic reel 6 inevitably varies. Even if the starting and extreme position spacing of the cabling bracket 3 is fixed, it may not be applicable to a specific layer of spiral fiber on a particular reel. This can lead to cabling problems, such as untimely or premature reversal of the cabling device, causing fiber breakage or fraying and affecting production. Therefore, a fiber optic position detection sensor needs to be introduced at the cabling end to detect the relative position of the fiber. The system then performs reversal based on trigger signals and reversal logic. Figure 5 and Figure 6 The extreme conditions of the fiber optic trigger sensor have been demonstrated, where the direction of the cable laying mechanism is changed by detecting the sensor's signal. Because optical fiber is colorless, transparent, and relatively small, the detection conditions are quite demanding. Typically, the detection distance of the fiber optic sensor is between 10 and 15 mm; distances less than 10 mm or greater than 15 mm will not be detected. As the diameter of the fiber optic tube gradually decreases during the cable laying process, the distance between the fiber and the sensor gradually changes, which may exceed the sensor's effective detection distance. Figure 7 As shown.

[0050] like Figure 7As shown, during production, the fiber optic coil diameter on the fiber optic reel is R1, and the distance between the detection sensor and the fiber optic cable is L1. As the cable is continuously unwound, the fiber optic coil diameter on the reel gradually decreases to R2, and the distance between the fiber optic cable and the detection sensor becomes L2. Figure 7 It can be seen that the distance of L2 is significantly larger than that of L1, exceeding the effective detection distance of the sensor. Therefore, the wiring device cannot be installed according to... Figure 6 The shown state indicates normal cable laying, but the structure has limitations. Especially with the increase in fiber optic production speed, the amount of fiber wound on the reel is usually large. This means that the relative position of the fibers changes significantly when the fiber reel is laid down from a full reel to just the reel. A fixed sensor position cannot guarantee an effective detection distance between the sensor and the fiber. In this context, a structure for adjusting the sensor position was designed. The angle of the sensor adjustment bracket is linked to the length of the fiber wound on the fiber reel. This allows the sensor position to be adjusted in real time during fiber reel laying, ensuring a constant relative position between the sensor and the fiber, keeping the fiber always within the detectable range. See [link to design]. Figure 8 and Figure 9 .

[0051] Depend on Figure 8 and Figure 9 It can be seen that when the fiber optic disk 6 has different winding diameters, the angular positional relationship between the lowermost fiber guide roller 1 and the fiber optic disk 6 will change (e.g., Figure 8 (Angles 1, 2, and 3 shown). However, as long as the fiber 2 extending from the fiber optic reel 6 wraps around the bottom fiber guide wheel 1, this segment of fiber 2 will be tangent to the bottom fiber guide wheel 1; therefore, regardless of how the diameter of the fiber optic reel 6 changes, the path (tangent) of this segment of fiber will always wrap around... Figure 8 The center of the bottom fiber guide wheel 1 is rotated. If the rotation center of the sensor adjustment bracket 8 can be aligned with the rotation center of the bottom fiber guide wheel 1, and the sensor is fixed on the fiber sensor bracket 5, a unique rotation angle can be found based on geometric relationships. After rotating the sensor adjustment bracket 8 by this angle, the sensor maintains the optimal detection distance with this fiber path. The rotation angle is calculated as follows: Figure 10 The diameter of the lowest fiber guide wheel 1 is R3. The distance between the center E of the lowest fiber guide wheel 1 and the center F of the fiber disk 6 is L. The radius of the fiber 2 on the fiber disk 6 is R2. The angle between the fiber segment and the straight line segment L is θ. The position of L only depends on the equipment and will not change, so L is taken as the reference line. The angle between the fiber and the tangent of the lowest fiber guide wheel 1 and the fiber disk 6 and L is θ. Based on this θ, the controller can use the position of the straight line segment L as the origin reference to find the optimal position for detecting the optical fiber when the radius of the optical fiber disk 6 is R2.

[0052] Because the detected fiber optic path involves the fiber roll diameter, reel size, and their geometric relationships, the specific fiber roll diameter for a given reel is essential. In the fiber optic production system, for a given reel of normal fiber, the system records the corresponding fiber length wound on the reel. When the equipment lays out the fiber, the servo mechanism of the production system records the length of the laid-out fiber and feeds it back to the production system in real time. Therefore, the length wound on the fiber reel can be obtained through the production system. Generally, by reading the barcode information on the fiber reel, the segment length information recorded in the production system can be retrieved. This segment length information is then input into the controller. The controller calculates the corresponding fiber segment length and the fiber roll diameter wound on the reel type. Simultaneously, it combines the geometric positional parameters of the reel and the cable laying mechanism to generate an angle signal for the servo motor. The controller transmits this angle signal to servo motor 4, which drives the transmission mechanism, thereby rotating the sensor adjustment bracket 8 to the corresponding angle. For details, see [link to relevant documentation]. Figure 11 After the controller adjusts the position of the fiber optic sensor bracket 5 according to the barcode information, the operator winds the fiber optic cable around the fiber optic guide wheel 1. At this point, the fiber optic cable is within the effective detection range of the sensor. As the cable laying begins, the controller records the length of the laid-out fiber optic cable in real time, thereby monitoring the current roll diameter on the fiber optic reel 6. Based on the monitored roll diameter, the controller outputs an angle signal to the servo motor. The servo motor then rotates the sensor adjustment bracket 8, which in turn rotates the fiber optic sensor bracket 5. This ensures that the sensor and the fiber optic cable maintain a dynamic and constant relative position, meeting the detection range of the fiber optic sensor. Even when the fiber optic roll diameter changes continuously during cable laying, the position of the fiber optic cable can still be detected normally, thus enabling cable reversal based on this detection signal.

[0053] In this invention, the sensor rotating bracket (fiber optic sensor bracket 5, sensor adjustment bracket 8) is concentric with the rotation center (guide wheel shaft) of the fiber optic guide wheel. Since the fiber optic guide wheel is always tangent to the fiber optic cable, when the path of tangency between the fiber optic cable and the fiber optic guide wheel changes, a fixed relative position with the fiber optic cable can be found by adjusting the position of the sensor rotating bracket (fiber optic sensor bracket 5, sensor adjustment bracket 8). Thus, when the position of the fiber optic cable changes, the point on the sensor rotating bracket (fiber optic sensor bracket 5, sensor adjustment bracket 8) remains relatively stationary with respect to the fiber optic cable. In this way, the controller can calculate the rotation angle and drive the sensor rotating bracket (fiber optic sensor bracket 5, sensor adjustment bracket 8) to rotate by the corresponding angle, thereby ensuring the relative position between the sensor and the fiber optic cable is always maintained.

[0054] Example 2

[0055] See Figure 11An automatic fiber optic tracking detection method, which employs the automatic fiber optic tracking detection system described in Example 1, includes the following steps:

[0056] 1) Input the finished optical fiber into the production management system to obtain the optical fiber segment length information, and transmit the segment length information to the controller; the controller calculates the corresponding optical fiber segment length and the optical fiber roll diameter wound on the corresponding type of reel;

[0057] 2) The controller controls the transmission mechanism to move the sensor adjustment bracket according to the fiber diameter and the sensor adjustment bracket adjustment angle θ, thereby moving the fiber sensor bracket, so that the right fiber detection sensor or the left fiber sensor maintains a dynamic and constant relative position with the fiber, which meets the sensor detection range.

[0058] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0059] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An automatic fiber optic tracking detection system, characterized in that: Includes cable tray, fiber optic guide wheel seat, fiber optic guide wheel, fiber optic sensor bracket, sensor adjustment bracket, right-side fiber optic detection sensor, left-side fiber optic sensor, servo motor, and transmission mechanism; There are multiple fiber optic guide wheel seats, which are mounted on the cable tray; the fiber optic guide wheels are mounted on the fiber optic guide wheel seats; The fiber optic sensor bracket is connected to one end of the sensor adjustment bracket, and the other end of the sensor adjustment bracket is mounted on the guide wheel shaft on the fiber optic guide wheel seat at the bottom of the cable bracket. The sensor adjustment bracket can rotate around the guide wheel shaft. The fiber optic cable passes through the fiber optic guide wheel and the fiber optic sensor bracket in sequence and is wound around the fiber optic disc. The right-side fiber optic detection sensor and the left-side fiber optic sensor are mounted on the fiber optic sensor bracket. The servo motor is mounted on the cable tray and connected to the controller; the output end of the servo motor is connected to the transmission mechanism, and the transmission mechanism is connected to the sensor adjustment bracket; the controller controls the servo motor to work, thereby controlling the movement of the transmission mechanism, and then controlling the sensor adjustment bracket to adjust the angle, so that the right fiber optic detection sensor or the left fiber optic sensor maintains a dynamic and constant relative position with the fiber optic cable.

2. The automatic fiber optic tracking detection system according to claim 1, characterized in that: The transmission mechanism includes a large synchronous pulley, a small synchronous pulley, and a synchronous belt; The large synchronous pulley is mounted on the sensor adjustment bracket; the small synchronous pulley is mounted on the cable tray bracket; the servo motor controls the rotation of the small synchronous pulley; The timing belt is fitted on the large timing pulley and the small timing pulley.

3. The automatic fiber optic tracking detection system according to claim 1, characterized in that: The sensor adjustment bracket includes a connecting rod, the upper end of which is mounted on the guide wheel shaft on the fiber optic guide wheel seat at the lowest end of the cable bracket, and the connecting rod can rotate around the guide wheel shaft.

4. The automatic fiber optic tracking detection system according to claim 1, characterized in that: The fiber optic sensor support includes a U-shaped frame; One of the vertical bars of the U-shaped frame is connected to the sensor adjustment bracket, and a sensor support is installed on the other vertical bar of the U-shaped frame. The right fiber optic detection sensor and the left fiber optic sensor are installed on the sensor support; the fiber optic cable passes between the right fiber optic detection sensor and the left fiber optic sensor.

5. The automatic fiber optic tracking detection system according to claim 1, characterized in that: The cable tray is placed on a slide rail and can move along the slide rail.

6. The automatic fiber optic tracking detection system according to claim 1, characterized in that: The sensor adjustment bracket adjusts the angle. Where R3 is the diameter of the guide wheel on the bottommost fiber guide wheel seat of the cable tray, R2 is the radius of the fiber on the fiber tray, L is the distance between the center E of the guide wheel on the bottommost fiber guide wheel seat of the cable tray and the center F of the fiber tray; θ is the angle between the fiber segment and the straight line segment L, and also the angle between the tangent of the fiber and the guide wheel and the fiber tray and L.

7. An automatic fiber optic tracking detection method, characterized in that: The method employs the automatic fiber optic detection system described in any one of claims 1-6.

8. The automatic fiber optic tracking detection method according to claim 7, characterized in that: The method includes the following steps: 1) Input the finished optical fiber into the production management system to obtain the optical fiber segment length information, and transmit the segment length information to the controller; the controller calculates the corresponding optical fiber segment length and the optical fiber roll diameter wound on the corresponding type of reel; 2) The controller controls the transmission mechanism to move the sensor adjustment bracket according to the fiber diameter and the sensor adjustment bracket adjustment angle θ, thereby moving the fiber sensor bracket, so that the right fiber detection sensor or the left fiber sensor maintains a dynamic and constant relative position with the fiber, which meets the sensor detection range.

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