A method and device for adjusting the surplus length of an optical fiber

Abstract

The present invention discloses a method and device for adjusting the surplus length of an optical fiber. Obtain the optical fiber surplus length adjustment information. The controller of the optical fiber production equipment obtains a first adjustment value of the auxiliary traction wheel according to the adjustment information, or issues the adjustment information to the controller installed on the auxiliary traction wheel; the controller installed on the auxiliary traction wheel obtains the first adjustment value or the adjustment information to obtain a second adjustment value of the auxiliary traction wheel, and generates a control instruction for the regulator installed on the auxiliary traction wheel to realize the adjustment of the optical fiber surplus length. According to the optical fiber surplus length adjustment method and device implemented by the present invention, it is possible to effectively control the surplus length ratio between the loose tube and the inner optical fiber in the secondary sheathing production process, which is beneficial to improving the precise control of the on-line surplus length during large-scale production, and significantly expands the range of surplus length adjustment.

Description

Technical Field

[0001] The present invention belongs to the technical field of fiber optic slack length control, and specifically relates to a method and device for adjusting fiber optic slack length. Background Art

[0002] The generation of fiber optic slack length endows the optical cable with superior mechanical and physical properties. During the transportation or construction and laying of the optical cable, when the ambient temperature changes or there is an external force, the optical cable has a certain amount of telescopic redundancy. The generation of fiber optic slack length enables the optical fiber itself to be free from external forces or reduces the external force to an acceptable level when the optical cable undergoes telescopic changes. The size of the fiber optic slack length is an important indicator for measuring the production process of the optical cable.

[0003] There are many factor conditions for controlling the slack length in the fiber optic loose tube sheathing process. Whether using the thermal relaxation method or the elastic stretching method to obtain the fiber optic slack length, the final result of the slack length is affected by various factors, such as the fiber payout tension, the temperature difference between the front and rear cooling water tanks, the influence of the water blocking ointment filling process, the influence of the production line speed and speed difference, the diameter and number of winding turns of the traction wheel, the loose tube material, and the ointment material.

[0004] In fact, in the currently mature optical cable loose tube production process, a standardized production process has been solidified and integrated, and the control program has also been encapsulated according to the corresponding process and slack length requirements, resulting in many constraints in the case of requiring refined control of the slack length. Especially with the increase in optical cable construction scenarios, the range requirements for fiber optic slack length are also increasing. How to adjust the fiber optic slack length adaptively in the solidified production system is an urgent problem to be solved. Summary of the Invention

[0005] Therefore, in view of at least one of the above defects or improvement requirements of the prior art, the present invention discloses a method for adjusting fiber optic slack length, which is characterized by including the following steps:

[0006] Obtain fiber optic slack length adjustment information, which is the adjustment information obtained by real-time detection of the fiber production equipment, or the adjustment information obtained by input according to the corresponding process requirements of the fiber production equipment, or the adjustment information obtained by the measurement device communicatively connected to the controller installed on the auxiliary traction wheel;

[0007] The fiber production equipment controller obtains the first adjustment value of the auxiliary traction wheel according to the adjustment information, or issues the adjustment information to the controller installed on the auxiliary traction wheel;

[0008] The controller installed on the auxiliary traction wheel obtains the first adjustment value or the adjustment information, calculates the second adjustment value of the auxiliary traction wheel, and generates a control command for the regulator installed on the auxiliary traction wheel to achieve fiber optic slack length adjustment;

[0009] After the additional controller of the auxiliary traction wheel completes the adjustment according to the second adjustment value, it uploads the second adjustment value to the optical fiber production equipment controller, and the optical fiber production equipment controller adds a mark to the second adjustment value;

[0010] Further, obtaining the second adjustment value from the first adjustment value is: the additional controller of the auxiliary traction wheel calculates the optical fiber surplus length value under the first adjustment value, compares it with the corresponding process requirements, and generates the second adjustment value based on the difference between the two.

[0011] The present invention also discloses an optical fiber surplus length adjustment method, which is characterized by including the following steps:

[0012] S1: Detect the optical fiber surplus length in real time and obtain the optical fiber surplus length value to be adjusted;

[0013] The production equipment detects and obtains the optical fiber surplus length in real time, compares it with the optical fiber surplus length required by the process, obtains the first adjustment value of the surplus length value to be adjusted, sends the first adjustment value to the production equipment controller, and the production equipment controller performs optical fiber surplus length analysis according to the first adjustment value, obtains the speed difference adjustment value between the main traction wheel and the auxiliary traction wheel, and performs the first adjustment on the optical fiber surplus length;

[0014] S2: The additional controller of the auxiliary traction wheel obtains the real-time optical fiber surplus length value after the first adjustment from the production equipment controller, and at the same time receives the optical fiber length per unit time and the sleeve length per unit time sent by the measuring devices arranged at the optical fiber pay-off end and the take-up end; the additional controller of the auxiliary traction wheel performs optical fiber surplus length analysis based on the real-time optical fiber surplus length value, the optical fiber length per unit time and the sleeve length per unit time, calculates and obtains the second adjustment value of the auxiliary traction wheel, and sends the second adjustment value to the additional controller of the auxiliary traction wheel for adjustment; wherein, the measuring devices are communicatively connected to the additional controller of the auxiliary traction wheel and are used for measuring and transmitting the length data of the optical fiber and the sleeve in real time.

[0015] The present invention also discloses an optical fiber surplus length adjustment method, which is characterized by including the following steps:

[0016] S1: The production equipment controller analyzes the input surplus length value, the process surplus length, the process requirement value, compares it with the empirical process surplus length record value of the production equipment, and under the premise of not meeting the set range, sends the process surplus length requirement value to the additional controller of the auxiliary traction wheel. Under the premise of meeting the range, obtains the first adjustment value of the surplus length value to be adjusted, obtains the speed difference adjustment value between the main traction wheel and the auxiliary traction wheel, performs the first adjustment on the optical fiber surplus length, and sends the speed adjustment information for the auxiliary traction wheel to the additional controller of the auxiliary traction wheel;

[0017] S2: The controller added to the auxiliary traction wheel obtains process surplus length information from the production equipment controller, performs analysis, conducts optical fiber surplus length analysis in the controller added to the auxiliary traction wheel to obtain a second adjustment value, sends the second adjustment value to the regulator for adjustment by the controller added to the auxiliary traction wheel, and the controller added to the auxiliary traction wheel returns the second adjustment value to the production equipment controller. The production equipment controller identifies the control information mark in the second adjustment value and initiates the surplus length detection at the production equipment end.

[0018] The present invention also discloses an optical fiber surplus length adjustment device, which is characterized in that the device includes:

[0019] A regulator, arranged on the auxiliary traction wheel, receives control instructions from the controller added to the auxiliary traction wheel to realize the adjustment of the auxiliary traction wheel;

[0020] The controller added to the auxiliary traction wheel is communicatively connected to the optical fiber production equipment controller;

[0021] The controller added to the auxiliary traction wheel includes at least three data channels. One data channel is used to receive the data sent down by the optical fiber production equipment controller, one data channel uploads data to the optical fiber production equipment controller, and one data channel is used to send control instructions to the regulator;

[0022] The data sent down includes: the first optical fiber surplus length value collected at the production equipment end, and the first adjustment value of the auxiliary traction wheel speed adjustment obtained by calculating through the first optical fiber surplus length value at the production equipment end; or the auxiliary traction wheel speed adjustment value obtained by calculating through the set optical fiber surplus length value at the production equipment end;

[0023] The data uploaded includes: the second adjustment value of the auxiliary traction wheel speed.

[0024] Further, the device further includes: measuring devices arranged at the optical fiber pay-off end and the take-up end, used to measure the optical fiber length per unit time and the sleeve length per unit time in real time, and send them to the controller added to the auxiliary traction wheel.

[0025] Further, the controller added to the auxiliary traction wheel and the regulator are detachable.

[0026] Further, the regulator is a pneumatic cylinder proportional valve.

[0027] Generally speaking, compared with the prior art through the above technical solutions of the inventive concept of the present invention, the following beneficial effects can be achieved:

[0028] (1) The optical fiber slack length adjustment method and device implemented according to the present invention improve the optical fiber secondary sheathing production equipment that has already integrated the overall production system. By selecting to add a dedicated controller and a detachable adjustment device to the auxiliary traction wheel, further adjustment of the optical fiber slack length is achieved under the unified coordinated management of the production system, so as to expand the range of optical fiber slack length adjustment. Since the auxiliary traction wheel plays a major traction role on the sleeve, the adjustment effect of increasing the negative slack length is particularly obvious;

[0029] (2) On the other hand, in the present invention, by respectively installing counters at the optical fiber ribbon pay-off guide wheel and the take-up place, the length difference between the two sides within the same time can be quickly measured and judged, which is conducive to quickly obtaining the slack length value. After feedback, the front-end traction amount can be adjusted through the auxiliary traction controller, so as to effectively control the slack length ratio between the loose tube and the inner optical fiber during secondary sheathing, which is conducive to improving the precise control of the on-line slack length during large-scale production and improving the processing adaptability.

[0030] (3) For the compatibility control of the dedicated controller installed and adapted with the production system, a data communication channel needs to be established to retain the systematic adjustment effect of the original production system when the controller is installed, and without increasing the complexity of the hardware and software of the original production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a flowchart of an optical fiber slack length adjustment method implemented according to the present invention.

[0032] Figure 2 is a flowchart of one specific implementation manner of an optical fiber slack length adjustment method implemented according to the present invention.

[0033] Figure 3 is a flowchart of another specific implementation manner of an optical fiber slack length adjustment method implemented according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present 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 only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] As Figure 1 shown, the present invention provides an optical fiber slack length adjustment method, which specifically includes the following steps:

[0036] Obtain the optical fiber slack adjustment information. The controller of the optical fiber production equipment obtains the first adjustment value of the auxiliary traction wheel according to the adjustment information, or issues the adjustment information to the controller installed on the auxiliary traction wheel;

[0037] The controller installed on the auxiliary traction wheel obtains the first adjustment value or the adjustment information, calculates and obtains the second adjustment value of the auxiliary traction wheel, and generates a control command for installing a regulator on the auxiliary traction wheel to realize the adjustment of the optical fiber slack.

[0038] The optical fiber slack adjustment information is: the adjustment information obtained by the real-time detection of the optical fiber production equipment, or the adjustment information obtained by input according to the corresponding process requirements of the optical fiber production equipment, or the adjustment information obtained by the detection of the measuring device communicatively connected to the controller installed on the auxiliary traction wheel.

[0039] After the controller installed on the auxiliary traction wheel completes the adjustment according to the second adjustment value, it uploads the second adjustment value to the controller of the optical fiber production equipment, and the controller of the optical fiber production equipment adds a mark to the second adjustment value.

[0040] Obtaining the second adjustment value from the first adjustment value is: the controller installed on the auxiliary traction wheel calculates the optical fiber slack value under the first adjustment value, compares it with the corresponding process requirements, and generates the second adjustment value based on the difference between the two.

[0041] As one implementation mode of the present invention, in the secondary sheathing process, an accurate length meter is installed at the optical fiber ribbon pay-off guide wheel to measure the length of the released optical fiber ribbon; an accurate length meter is installed at the take-up to measure the length of the collected sleeve;

[0042] The length difference within the same time can be obtained by calculation to obtain the slack value; the optical fiber slack value obtained by the above-mentioned accurate length meter is preferably fed back to the controller installed on the auxiliary traction wheel.

[0043] The controller installed on the auxiliary traction wheel analyzes the above-mentioned optical fiber slack value. When the detected value of the optical fiber slack value is within the first order of magnitude range, the above-mentioned optical fiber slack value is sent to the production equipment controller for the first adjustment;

[0044] When the detected value of the optical fiber slack value is within the second order of magnitude range, the controller installed on the auxiliary traction wheel is converted into a proportional valve to obtain the second adjustment value;

[0045] As one implementation mode of the present invention, the controller installed on the auxiliary traction wheel obtains the real-time speed of the auxiliary traction wheel from the production equipment controller and corrects the second adjustment value according to the above-mentioned real-time speed value.

[0046] As one of the embodiments of the present invention, the number of precision length meters for the optical fiber ribbon pay-off guide pulley is 1 - 3, which is used to calculate the pay-off accuracy by averaging the measurements of multiple precision length meters; the number of precision length meters at the take-up is 1 - 3, which is used to calculate the take-up accuracy by averaging the measurements of multiple precision length meters.

[0047] As one of the embodiments of the present invention, the optical fiber surplus length adjustment method implemented according to the present invention can achieve a wide range of implementation effects, especially in the realization of negative surplus length, preferably -18‰ - 2‰.

[0048] Under the action of the pay-off tension system, the optical fiber undergoes tensile strain and leans against the inner wall of the loose tube on the main traction wheel; the length of the optical fiber on the main traction wheel is less than the length of the tube, forming a negative surplus length; the water tank with adjustable temperature mainly realizes the cooling and shaping of the extruded tube. The tube shrinks, forming a positive surplus length. In fact, the filling paste used in the secondary tube-sheathing process and the characteristics of the PBT material of the tube itself will affect the formation of the surplus length. However, during the operation of the production equipment, it will be debugged and solidified into a relatively stable adjustment state. The production equipment mainly completes three controls during operation: speed control, temperature control, and tension control. The speed of the wheeled traction wheel is the benchmark for the speed of the whole machine. The extruder, grease filling, and take-up all need to follow the traction speed at a certain ratio and keep synchronous with the traction speed. Temperature control mainly refers to the temperature control of the four sections of the extruder itself and the three sections of the cooling water tank. The three sections of the temperature of the cooling water tank include: the moving hot water tank, the wheeled traction, and the cold water tank. Tension control includes pay-off tension, the tension between the main and auxiliary traction, and take-up tension control. Therefore, the control of the optical fiber surplus length in the processing technology is also restricted by the correlation in the overall production equipment. If a more personalized surplus length range is set, first, it may exceed the control range of the speed difference between the main traction wheel and the auxiliary traction wheel, and when the production equipment controller executes the surplus length adjustment, it cannot issue control instructions. Second, if the control parameters of the production equipment conditions are readjusted after the surplus length adjustment is executed according to the setting, it will cause a large amount of waste and consumption of resources.

[0049] The present invention selects to install a detachable cylinder proportional valve adjustment device on the auxiliary traction wheel and install a corresponding configuration controller. In the overall process of the production equipment, the auxiliary traction wheel mainly realizes the further stable shrinkage of the tube. Selecting to install an auxiliary adjustment device and a corresponding controller on it can achieve a better optical fiber surplus length adjustment effect without having a great impact on the production equipment. When it is not required to participate in the work of the production equipment, the whole set of equipment can also be disassembled from the auxiliary traction wheel.

[0050] Specifically, as a specific implementation step of one of the optical fiber surplus length adjustment methods of the present invention, establishing communication between the production equipment controller and the controller installed on the auxiliary traction wheel includes:

[0051] Allocate an interface from the production equipment controller and establish a connection with the controller installed on the auxiliary traction wheel, enabling data communication connection between the two controllers. The controller installed on the auxiliary traction wheel receives the data sent from the production equipment controller and establishes a data connection for sending data with at least two channels, including the first optical fiber surplus length value collected at the production equipment end, and the first adjustment value for adjusting the speed of the auxiliary traction wheel obtained by calculating through the first optical fiber surplus length value at the production equipment end; or the adjustment value for adjusting the speed of the auxiliary traction wheel obtained by calculating through the set optical fiber surplus length value at the production equipment end.

[0052] Establish an upload data connection with at least one channel, and mark the optical fiber surplus length value obtained after adjustment by the controller installed on the auxiliary traction wheel; the generation criterion for the mark is: compare the first optical fiber surplus length value collected at the current production equipment end with the optical fiber surplus length value generated by the auxiliary traction wheel speed value sent from the production equipment end. If they are inconsistent, mark the control information for the first optical fiber surplus length value information; or receive the adjustment of the auxiliary traction wheel speed, and the information from the controller installed on the auxiliary traction wheel contains a control information mark.

[0053] The production equipment controller stores the above control information marks in a queue, and before sending the next speed control information of the auxiliary traction wheel, it is convenient to read the above control information marks from the queue storage to ensure the independent control of the optical fiber surplus length at the production equipment end, and also enable the production equipment controller to be compatible with the independent control of the auxiliary traction wheel under the cylinder proportional valve.

[0054] Write the control relationship between the adjustment of the auxiliary traction wheel speed and the cylinder proportional valve in the controller installed on the auxiliary traction wheel, and set the adjustment range of the optical fiber surplus length.

[0055] Establish an upload data channel connection with the production equipment controller, including uploading the second adjustment value of the auxiliary traction wheel speed.

[0056] Embodiment 1

[0057] As Figure 2 shown in

[0058] S1: The production equipment detects and obtains the fiber optic surplus length in real time, compares it with the fiber optic surplus length required by the process, and obtains the value of the surplus length to be adjusted. In one embodiment of the present invention, during the production process of the production equipment, the first adjustment value of the surplus length is obtained and sent to the production equipment controller. The production equipment controller performs fiber optic surplus length analysis, obtains the speed difference adjustment value between the main traction wheel and the auxiliary traction wheel, and performs the first adjustment on the fiber optic surplus length.

[0059] The above first adjustment value is executed in the production equipment controller, which satisfies the comprehensive factors of various factors such as the current temperature, tension, and parameters of the traction wheel affecting the fiber optic surplus length, and realizes the first adjustment of the fiber optic surplus length; obtains the real-time fiber optic surplus length value corresponding to the first adjustment.

[0060] S2: The controller installed on the auxiliary traction wheel obtains the real-time fiber optic surplus length value after the first adjustment from the production equipment controller, performs analysis, performs fiber optic surplus length analysis in the controller installed on the auxiliary traction wheel, obtains the second adjustment value, and sends the second adjustment value to the controller installed on the auxiliary traction wheel for adjustment. The second adjustment value corresponds to the adjustment value of the cylinder proportional valve installed on the auxiliary traction wheel; the controller installed on the auxiliary traction wheel returns the second adjustment value to the production equipment controller, and the production equipment controller can include the above adjustment value in the conversion control of the speed difference.

[0061] Embodiment 2

[0062] As Figure 3 shown, according to a specific embodiment shown in the present invention,

[0063] S1: The production equipment controller analyzes the process requirement value of the process surplus length, compares it with the empirical process surplus length value of the production equipment. Under the premise of not meeting the range, it sends the process surplus length information to the controller installed on the auxiliary traction wheel. Under the premise of meeting the range, it obtains the value of the surplus length to be adjusted, obtains the speed difference adjustment value between the main traction wheel and the auxiliary traction wheel, performs the first adjustment on the fiber optic surplus length, and sends the speed adjustment of the auxiliary traction wheel to the controller installed on the auxiliary traction wheel.

[0064] S2: The controller installed on the auxiliary traction wheel obtains the process surplus length information from the production equipment controller, performs analysis, performs fiber optic surplus length analysis in the controller installed on the auxiliary traction wheel, obtains the second adjustment value, and sends the second adjustment value to the controller installed on the auxiliary traction wheel for adjustment. The second adjustment value corresponds to the adjustment value of the cylinder proportional valve installed on the auxiliary traction wheel; the controller installed on the auxiliary traction wheel returns the second adjustment value to the production equipment controller, and the production equipment controller identifies the control information mark in the second adjustment value and starts the surplus length detection at the production equipment end.

[0065] As one of the embodiments of the present invention, in the secondary sheathing process, a precision length meter is installed at the fiber optic ribbon pay-off guide pulley to measure the length of the paid-out fiber optic ribbon; a precision length meter is additionally installed at the take-up to measure the length of the sheathing being received; the length difference within the same time can be obtained through calculation to feedback the surplus length value; preferably, the fiber optic surplus length value obtained by calculating with the above-mentioned precision length meter is fed back to the controller installed on the auxiliary traction wheel.

[0066] As one of the embodiments of the present invention, the controller installed on the auxiliary traction wheel analyzes the above-mentioned fiber optic surplus length value. When the detected value of the fiber optic surplus length value is within the first order of magnitude range, the above-mentioned fiber optic surplus length value is sent to the production equipment controller for the first adjustment; when the detected value of the fiber optic surplus length value is within the second order of magnitude range, the controller installed on the auxiliary traction wheel is converted into a proportional valve to obtain the second adjustment value; that is to say, by installing a controller on the auxiliary traction wheel, a processing technology with a large range of negative surplus length can be realized without affecting other adjustment factors of the production equipment. In a specific embodiment, the controller of the production equipment can be configured to directly send an adjustment instruction to the controller installed on the auxiliary traction wheel when the required value of the fiber optic surplus length process input is within the second order of magnitude range.

[0067] As one of the embodiments of the present invention, the controller installed on the auxiliary traction wheel obtains the real-time speed of the auxiliary traction wheel from the production equipment controller and corrects the second adjustment value based on the above-mentioned real-time speed value.

[0068] The present invention further discloses a fiber optic surplus length adjustment device, which is characterized in that the device includes:

[0069] A regulator, arranged on the auxiliary traction wheel, receiving the control instruction of the controller installed on the auxiliary traction wheel to realize the adjustment of the auxiliary traction wheel; the controller installed on the auxiliary traction wheel, communicating with the fiber optic production equipment controller;

[0070] The controller installed on the auxiliary traction wheel includes at least three data channels. One data channel is used to receive the data sent down by the fiber optic production equipment controller, one data channel uploads data to the fiber optic production equipment controller, and one data channel is used to send control instructions to the regulator;

[0071] The data sent down includes: the first fiber optic surplus length value collected at the production equipment end, and the first adjustment value of the auxiliary traction wheel speed adjustment obtained by calculating through the first fiber optic surplus length value at the production equipment end; or the auxiliary traction wheel speed adjustment value obtained by setting the fiber optic surplus length value at the production equipment end;

[0072] The data uploaded includes: the second adjustment value of the auxiliary traction wheel speed.

[0073] The device further includes: measuring devices disposed at the fiber pay-off end and the take-up end, configured to measure the fiber length per unit time and the sleeve length per unit time in real time, and send the measured results to the controller added to the auxiliary traction wheel.

[0074] The controller and the regulator added to the auxiliary traction wheel are detachable.

[0075] The regulator is a pneumatic cylinder proportional valve.

[0076] The content described in this specification is only an example of the present invention. Those skilled in the art to which the present invention pertains can make various modifications, supplements, or use similar methods to replace the specific embodiments described, as long as they do not deviate from the content of this specification or exceed the scope defined by this claims, they shall fall within the protection scope of the present invention.

Claims

1. A method for adjusting the surplus length of an optical fiber, characterized in that, The steps are as follows: Obtain the optical fiber slack adjustment information, which is the adjustment information obtained by real-time detection of the optical fiber production equipment, or the adjustment information input according to the corresponding process requirements of the optical fiber production equipment, or the adjustment information obtained by detection implemented by a measuring device communicatively connected to a controller installed on the auxiliary traction wheel; The controller of the optical fiber production equipment obtains the first adjustment value of the auxiliary traction wheel according to the adjustment information, or sends the adjustment information to the controller installed on the auxiliary traction wheel; The controller installed on the auxiliary traction wheel obtains the first adjustment value or the adjustment information, calculates and obtains the second adjustment value of the auxiliary traction wheel, and generates a control command for the regulator installed on the auxiliary traction wheel to realize optical fiber slack adjustment; After the controller installed on the auxiliary traction wheel completes the adjustment according to the second adjustment value, it uploads the second adjustment value to the controller of the optical fiber production equipment, and the controller of the optical fiber production equipment adds a mark to the second adjustment value.

2. The optical fiber surplus length adjustment method according to claim 1, characterized in that Obtaining the second adjustment value from the first adjustment value is: the controller installed on the auxiliary traction wheel calculates the optical fiber slack value under the first adjustment value, compares it with the corresponding process requirements, and generates the second adjustment value based on the difference between the two.

3. A method for adjusting the extra length of an optical fiber, characterized in that, The steps are as follows: S1: Real-time detect the optical fiber slack and obtain the optical fiber slack value to be adjusted; The production equipment real-time detects and obtains the optical fiber slack, compares it with the optical fiber slack required by the process, obtains the first adjustment value, sends the first adjustment value to the controller of the production equipment, and the controller of the production equipment obtains the speed difference adjustment value between the main traction wheel and the auxiliary traction wheel according to the first adjustment value, and performs the first adjustment on the optical fiber slack; S2: The controller installed on the auxiliary traction wheel obtains the real-time optical fiber slack value after the first adjustment from the controller of the production equipment, and at the same time receives the optical fiber length per unit time and the sleeve length per unit time sent by the measuring devices arranged at the optical fiber pay-off end and the take-up end; the controller installed on the auxiliary traction wheel performs optical fiber slack analysis based on the real-time optical fiber slack value, the optical fiber length per unit time and the sleeve length per unit time, calculates and obtains the second adjustment value of the auxiliary traction wheel, and sends the second adjustment value to the controller installed on the auxiliary traction wheel for adjustment; wherein, the measuring devices are communicatively connected to the controller installed on the auxiliary traction wheel and are used for real-time measuring the optical fiber length per unit time and the sleeve length per unit time.

4. A method for adjusting the excess length of an optical fiber, characterized in that, The steps are as follows: S1: The controller of the production equipment analyzes the input slack process requirement value, compares it with the slack record value of the production equipment. If the set range is not met, it sends the slack process requirement value to the controller installed on the auxiliary traction wheel. If the range is met, it obtains the first adjustment value, obtains the speed difference adjustment value between the main traction wheel and the auxiliary traction wheel, performs the first adjustment, and sends the speed adjustment information of the auxiliary traction wheel to the controller installed on the auxiliary traction wheel; S2: The additional controller of the auxiliary traction wheel obtains process surplus length information from the production equipment controller, performs analysis to obtain a second adjustment value, sends the second adjustment value to the regulator for adjustment, the additional controller of the auxiliary traction wheel returns the second adjustment value to the production equipment controller, and the production equipment controller identifies the control information mark in the second adjustment value and starts the surplus length detection at the production equipment end.

5. An optical fiber surplus length adjusting device, characterized in that, The device includes: A regulator, arranged on the auxiliary traction wheel, receiving control instructions from the additional controller of the auxiliary traction wheel to realize the adjustment of the auxiliary traction wheel; The additional controller of the auxiliary traction wheel, communicatively connected to the optical fiber production equipment controller; The additional controller of the auxiliary traction wheel includes at least three data channels. One data channel is used to receive the data sent down by the optical fiber production equipment controller, one data channel uploads data to the optical fiber production equipment controller, and one data channel is used to send control instructions to the regulator; The data sent down includes: the first optical fiber surplus length value collected at the production equipment end, and the first adjustment value for the speed adjustment of the auxiliary traction wheel obtained by calculating through the first optical fiber surplus length value at the production equipment end; or the speed adjustment value of the auxiliary traction wheel obtained by calculating through the set optical fiber surplus length value at the production equipment end; The uploaded data includes: the second adjustment value of the speed of the auxiliary traction wheel.

6. The optical fiber surplus length adjusting device according to claim 5, characterized in that, The device further includes: measuring devices arranged at the optical fiber pay-off end and the take-up end, used to measure the optical fiber length per unit time and the sleeve length per unit time in real time, and send them to the additional controller of the auxiliary traction wheel.

7. The optical fiber slack adjustment device according to claim 5, characterized in that The additional controller of the auxiliary traction wheel and the regulator are detachable.

8. The optical fiber slack adjustment device according to claim 5, characterized in that The regulator is a pneumatic cylinder proportional valve.

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