A flexible optical fiber ribbon cable and a processing method thereof

Abstract

The present invention relates to the technical field of optical fiber processing, and specifically discloses a flexible optical fiber ribbon cable and a processing method thereof, comprising: step one: in the process of drawing, segmented detection is performed on the whole section of optical fiber to obtain detection data of the optical fiber segment; step two: based on the detection data of all optical fiber segments, the quality coefficient of the whole section of optical fiber is calculated and output; step three: based on the quality coefficient of the whole section of optical fiber, the quality of the whole section of optical fiber is evaluated to generate a quality evaluation signal; step four: a drawing machine is analyzed to determine whether tension fluctuation has an impact on the quality of the whole section of optical fiber, and a tension fluctuation impact signal is generated; the present invention realizes precise control of the optical fiber manufacturing process, improves the quality and performance of the product; realizes automatic adjustment and limitation of the tension fluctuation range in the optical fiber manufacturing process, thereby preventing the occurrence of abnormal quality of the optical fiber segment and ensuring the quality stability of the optical fiber manufacturing process.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber processing, and in particular to a flexible optical fiber ribbon cable and a processing method thereof. Background Art

[0002] Fiber optic cable is a communications cable consisting of two or more glass or plastic optical fiber cores within a protective sheath covered by a plastic PVC outer casing. It has advantages over conventional communications lines; fiber optic communications networks can transmit significantly more information at significantly higher speeds than traditional wired networks. The amount of data transmitted via optical cables continues to grow worldwide, especially in data centers due to the expansion of cloud computing, which requires receiving and transmitting data in limited physical space. Therefore, the requirements for optical fibers are also increasing.

[0003] In the process of flexible optical fiber ribbon and cable processing, optical fiber drawing plays a vital role in the optical fiber manufacturing process. It not only affects the diameter, shape and performance indicators of the optical fiber, but also is related to the tensile strength, surface quality and internal structure consistency of the optical fiber. Therefore, optimizing the optical fiber drawing process is of great significance to improving the performance and quality of the optical fiber;

[0004] However, when making optical fiber cables, the preform rod is installed in a heating furnace at the top of the drawing machine and heated, which reduces the viscosity of the tip of the rod and gradually sags and becomes thinner by its own weight to form a whole section of optical fiber, making it difficult to control the quality of the whole section of optical fiber. In the prior art, it is not possible to analyze the relationship between tension fluctuation and optical fiber segment quality based on the segment quality coefficient of the optical fiber segment, and to efficiently detect the optical fiber drawing process. Furthermore, it will also lead to the inability to accurately limit the tension fluctuation range and regulate the subsequent production quality of flexible optical fiber ribbon cables. Summary of the invention

[0005] The purpose of the present invention is to provide a flexible optical fiber ribbon cable and a processing method thereof, so as to solve the problem in the above background that it is impossible to analyze the relationship between tension fluctuation and optical fiber segment quality based on the segment quality coefficient of optical fiber segmentation, and to efficiently detect the optical fiber drawing process.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] In a first aspect, the present invention provides a method for processing a flexible optical fiber ribbon cable, comprising the following steps: optical fiber preparation, optical fiber packaging, and final treatment of a protective layer, wherein the optical fiber preparation comprises the following steps:

[0008] The entire section of optical fiber obtained during the optical fiber preparation is tested to evaluate the quality of the entire section of optical fiber. The specific method includes the following steps:

[0009] Step 1: During the drawing process, the entire section of optical fiber is tested in sections to obtain the test data of the optical fiber sections;

[0010] Step 2: Based on the detection data of all fiber segments, calculate the quality coefficient of the entire fiber segment;

[0011] Step 3: Based on the quality coefficient of the entire optical fiber, the quality of the entire optical fiber is evaluated to generate a quality evaluation signal;

[0012] Step 4: During the wire drawing process, obtain the segmented quality coefficient and tension fluctuation value of each detection period within the target time period; based on the segmented quality coefficient and tension fluctuation value of the detection period, perform ratio calculation on the segmented quality coefficient and tension fluctuation value, and output the influencing parameter ratio; perform absolute difference calculation on the influencing parameter ratios of adjacent detection periods, output the influencing parameter ratio difference, perform mean calculation on all influencing parameter ratio differences, and output the influencing coefficient; compare and analyze the influencing coefficient with the influencing coefficient threshold;

[0013] If the influence coefficient is less than the influence coefficient threshold, a tension fluctuation influence signal is generated;

[0014] If the influence coefficient ≥ the influence coefficient threshold, a tension fluctuation no influence signal is generated.

[0015] As a further solution of the present invention: the process of acquiring the detection data is as follows:

[0016] The test data include: segment quality coefficient;

[0017] Obtain the fiber segments obtained through the drawing process during the detection period and mark them as fiber segments; detect the fiber segments to obtain the drawing coefficient and uniformity coefficient of the fiber segments; sum the drawing coefficient and the uniformity coefficient and output the segment quality coefficient.

[0018] As a further solution of the present invention: the process of obtaining the quality coefficient of the entire optical fiber is:

[0019] Based on the segment quality coefficients of all optical fiber segments, the ratio of the number of abnormal optical fiber segments and the total value of the segment quality coefficients are obtained, the ratio of the number of abnormal optical fiber segments and the total value of the segment quality coefficients are multiplied to calculate the product, and the quality coefficient of the entire optical fiber segment is output.

[0020] As a further solution of the present invention: the process of generating the quality assessment signal is:

[0021] The quality assessment signals include: qualified quality signals and unqualified quality signals;

[0022] Comparing and analyzing the quality coefficient of the entire optical fiber section with the quality coefficient threshold of the entire optical fiber section;

[0023] If the quality coefficient of the entire optical fiber section is greater than the quality coefficient threshold of the entire optical fiber section, a quality failure signal is generated;

[0024] If the quality coefficient of the entire optical fiber section is less than or equal to the quality coefficient threshold of the entire optical fiber section, a quality qualified signal is generated.

[0025] As a further solution of the present invention: the process of obtaining the tension fluctuation value is:

[0026] During the detection period, the tension of the wire drawing machine is monitored in real time to obtain the tension value at each time point; the absolute difference between the tension value at each time point and the standard tension value is calculated respectively, and the tension deviation value at each time point is output; the tension deviation values ​​of all time points are summed up and the total tension deviation value is output; the total tension deviation value is ratio-calculated with the standard tension value, and the tension fluctuation value is output.

[0027] As a further solution of the present invention, the method of testing the entire section of optical fiber obtained in the optical fiber preparation to evaluate the quality of the entire section of optical fiber further includes the following steps:

[0028] Step 5: Based on the tension fluctuation affecting the signal, the tension fluctuation range is limited to prevent the generation of abnormal signals of optical fiber segmentation.

[0029] As a further solution of the present invention: the specific process of limiting the tension fluctuation range is:

[0030] Based on the tension fluctuation influential signal, the segmented quality coefficient and the tension fluctuation value of the current detection cycle are obtained, and the tension adjustment value is calculated; based on the tension adjustment value, the tension fluctuation range of the next detection cycle is limited to obtain the tension limit range [L1, L2], where L1 is the minimum value of the tension limit range, and L2 is the maximum value of the tension limit range;

[0031] The process of obtaining the tension limit range [L1, L2] is as follows:

[0032] Obtain the minimum and maximum values ​​of the tension in the current detection cycle, and obtain the fluctuation range of the tension in the current detection cycle [Y1, Y2], where Y1 is the minimum value of the tension in the current detection cycle, and Y2 is the maximum value of the tension in the current detection cycle;

[0033] The minimum value L1 of the tension limit range is calculated by the formula: L1=Y1+LT;

[0034] The maximum value L2 of the tension limit range is calculated by the formula: L2=Y2-LT;

[0035] According to the minimum value L1 of the tension limit range and the maximum value L2 of the tension limit range, the tension limit range [L1, L2] of the next detection cycle is obtained.

[0036] As a further solution of the present invention: the process of obtaining the tension adjustment value is:

[0037] Based on the current detection cycle, obtain the tension fluctuation adjustment value;

[0038] By formula: , calculate and obtain the tension adjustment value LT, where LBT is the tension fluctuation adjustment value, BL is the standard tension value, The detection cycle duration.

[0039] As a further solution of the present invention: the process of obtaining the tension fluctuation adjustment value is:

[0040] Obtain the segmented quality coefficient of the current detection cycle, perform difference calculation between the segmented quality coefficient and the segmented quality coefficient threshold, and output the segmented quality coefficient deviation value; perform ratio calculation between the segmented quality coefficient deviation value and the mean of the influencing parameter ratio, and output the tension fluctuation adjustment value.

[0041] In a second aspect, the present invention provides a flexible optical fiber ribbon cable, which is prepared by the processing method described above.

[0042] Beneficial effects of the present invention:

[0043] The present invention not only improves the accuracy and comprehensiveness of optical fiber quality assessment through a segmented detection method, but also can timely discover and solve the problem that the quality of the optical fiber obtained by drawing cannot be timely and accurately detected in the preparation process of the flexible optical fiber ribbon and cable, especially in the drawing process, so as to ensure that the produced optical fiber products meet the quality requirements, realize the precise control of the optical fiber manufacturing process, and improve the quality and performance of the products;

[0044] The present invention monitors and analyzes the tension fluctuation of the drawing machine in the optical fiber manufacturing process in real time, and combines the quality coefficient of the optical fiber segment to determine whether the tension fluctuation has a significant impact on the quality of the entire optical fiber; thereby, the influence of the tension fluctuation on the optical fiber quality during the drawing process can be more comprehensively understood, providing strong support for quality control in the production process;

[0045] The present invention realizes automatic adjustment and limitation of the tension fluctuation range in the optical fiber manufacturing process by real-time monitoring and analyzing the tension fluctuation of the drawing machine in the optical fiber manufacturing process, combining with the quality coefficient of the optical fiber segment, thereby preventing the occurrence of abnormal quality of the optical fiber segment and ensuring the quality stability of the optical fiber manufacturing process. It not only improves the controllability of the optical fiber manufacturing process, but also provides a strong guarantee for improving the quality of optical fiber products and effectively controls the tension fluctuation in the drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Figure 1 is a flowchart of Embodiment 1 of the present invention;

[0048] Figure 2 is a flowchart of Embodiment 2 of the present invention;

[0049] Figure 3 is a flowchart of Embodiment 3 of the present invention;

[0050] Figure 4 It is a system block diagram of embodiment 4 of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0052] See also Figure 1 As shown, a method for processing a flexible optical fiber ribbon cable according to an embodiment of the present invention comprises the following steps:

[0053] Fiber preparation: First, the preform rod is placed in the heating furnace at the top of the drawing machine. When the furnace temperature rises to 2200°C, the viscosity of the tip of the rod becomes lower, and it gradually sags and becomes thinner by its own weight to become a bare fiber. The bare fiber passes through a laser diameter measuring monitor and then enters the coating and curing system;

[0054] Optical fiber packaging: When manufacturing the optical fiber, the positioning rings are clamped on the surface of the line tube at equal intervals. Then, according to the installation position of the positioning rings, the protective ring assembly is installed on its surface using the existing clamping equipment. Then, the protective layer is installed on the outside of the protective ring using the clamping equipment. The solidified optical fiber is then pulled into the inside of the line tube using the existing pulling equipment.

[0055] Final treatment of the protective layer: After the optical fiber is pulled, the protective layer wrapped with the protective ring, the positioning ring and the wire tube is passed into the extruder, and the protective layer is wrapped with the plastic in the extruder and output, and then the output and plastic-wrapped protective layer is passed into water for cooling;

[0056] The specific process of optical fiber preparation is as follows: the preform rod is placed in the heating furnace at the top of the drawing machine and heated to reduce the viscosity of the tip of the rod, and the rod gradually sags and becomes thinner by its own weight to form a whole section of optical fiber. The obtained whole section of optical fiber is tested to evaluate the quality of the whole section of optical fiber.

[0057] During the drawing process of optical fiber preparation, the optical fiber is tested to evaluate the quality of the entire optical fiber, which specifically includes the following steps:

[0058] Step 1: During the drawing process, the entire section of optical fiber is tested in sections to obtain the test data of the optical fiber sections;

[0059] Among them, the detection data includes: segment quality coefficient;

[0060] In some implementation schemes, an optical fiber segment obtained by a drawing process during a detection period is obtained and marked as an optical fiber segment; the optical fiber segment is detected to obtain a drawing coefficient and a uniformity coefficient of the optical fiber segment; the drawing coefficient and the uniformity coefficient are summed and calculated to output a segment quality coefficient;

[0061] Exemplarily, the process of obtaining the drawing coefficient is:

[0062] Obtain the drawn length of the optical fiber segment, calculate the absolute difference between the drawn length and the standard drawn length, output the drawn length deviation value, then calculate the ratio of the drawn length deviation value to the standard drawn length, and output the drawing coefficient;

[0063] The standard drawing length is: the drawing length of the optical fiber segment preset by the process during the preparation of the flexible optical fiber ribbon cable;

[0064] The process of obtaining the uniformity coefficient is:

[0065] Based on the fiber segmentation, multiple detection points are set, and the multiple detection points are arranged at equal intervals on the central axis of the fiber segment. With each detection point as the center of the circle, the fiber diameter corresponding to each detection point is obtained; the fiber diameter corresponding to each detection point is calculated with the standard fiber diameter, and the fiber diameter ratio corresponding to each detection point is output. All fiber diameter ratios are summed and calculated, and the uniformity coefficient is output;

[0066] The standard optical fiber diameter is the diameter of the optical fiber pre-set by the process during the preparation of the flexible optical fiber ribbon cable;

[0067] It should be noted that the detection cycle includes but is not limited to: 1 minute;

[0068] Step 2: Based on the detection data of all fiber segments, calculate the quality coefficient of the entire fiber segment;

[0069] In some implementation schemes, according to the segment quality coefficients of all optical fiber segments, the ratio of the number of abnormal optical fiber segments and the total value of the segment quality coefficients are obtained, the ratio of the number of abnormal optical fiber segments and the total value of the segment quality coefficients are multiplied to calculate the product, and the quality coefficient of the entire optical fiber segment is output;

[0070] Exemplarily, the process of obtaining the abnormal optical fiber segment quantity ratio is as follows:

[0071] The segment quality coefficient is compared with the segment quality coefficient threshold. When the segment quality coefficient is greater than the segment quality coefficient threshold, it indicates that the detected optical fiber segment has a large difference from the standard required by the process in terms of drawing length and drawing diameter. An optical fiber segment abnormality signal is generated, and the optical fiber segment corresponding to the optical fiber segment abnormality signal is marked as an abnormal optical fiber segment, and the number of abnormal optical fiber segments is obtained; the ratio of the number of abnormal optical fiber segments to the total number of optical fiber segments is calculated, and the ratio of the number of abnormal optical fiber segments is output;

[0072] When the segment quality coefficient is less than or equal to the segment quality coefficient threshold, it means that the detected optical fiber segment has a small difference in the drawing length and drawing diameter from the standard required by the process, and a normal optical fiber segment signal is generated;

[0073] The process of obtaining the total value of the segmented quality coefficient is as follows:

[0074] Sum up and calculate the segment quality coefficients of all abnormal optical fiber segments, and output the total value of the segment quality coefficients;

[0075] Step 3: Based on the quality coefficient of the entire optical fiber, the quality of the entire optical fiber is evaluated to generate a quality evaluation signal;

[0076] Among them, the quality assessment signal includes: a quality qualified signal and a quality unqualified signal;

[0077] In some embodiments, the quality coefficient of the entire optical fiber segment is obtained, and the quality coefficient of the entire optical fiber segment is compared and analyzed with a quality coefficient threshold of the entire optical fiber segment;

[0078] If the quality coefficient of the entire optical fiber section is greater than the quality coefficient threshold of the entire optical fiber section, it means that the uniformity or shape of the entire optical fiber section does not meet the process requirements of the flexible optical fiber ribbon cable, and a quality failure signal is generated;

[0079] If the quality coefficient of the entire optical fiber is less than or equal to the quality coefficient threshold of the entire optical fiber, it means that the uniformity and shape of the entire optical fiber meet the process requirements of the flexible optical fiber ribbon cable, and a quality qualified signal is generated;

[0080] The technical solution of the embodiment of the present invention is mainly as follows: by segmenting the optical fiber in the drawing process and accurately measuring each segment, key quality parameters including drawing length and diameter uniformity are obtained, the difference between the drawing length and the standard length is quantified by the drawing coefficient, and the uniformity of the optical fiber diameter is evaluated by the uniformity coefficient, and the segment quality coefficient of each optical fiber segment is calculated. This coefficient intuitively reflects the stability and consistency of each segment in shape and size; then the segment quality coefficients of all optical fiber segments are comprehensively calculated, and the quality coefficient of the entire optical fiber segment is obtained by combining the number of abnormal optical fiber segments and the total value of their segment quality coefficients; finally, by The quality of the entire optical fiber is evaluated by comparing it with the preset threshold of the quality coefficient of the entire optical fiber. If the quality coefficient of the entire optical fiber exceeds the threshold, it means that there are problems with the uniformity or shape of the optical fiber, and it is therefore judged to be unqualified; otherwise, it is judged to be qualified. This segmented detection method not only improves the accuracy and comprehensiveness of optical fiber quality evaluation, but also can promptly discover and solve the quality problems of the flexible optical fiber ribbon and cable in the preparation process, especially in the drawing link, that cannot be timely and accurately detected in the optical fiber obtained after drawing, ensure that the produced optical fiber products meet the quality requirements, realize precise control of the optical fiber manufacturing process, and improve the quality and performance of the product. Embodiment 2

[0081] Based on Example 1, please refer to Figure 2 As shown, the optical fiber is tested to evaluate the quality of the entire optical fiber, which specifically includes the following steps:

[0082] Step 4: Analyze the drawing machine to determine whether the tension fluctuation affects the quality of the entire optical fiber and generate a tension fluctuation impact signal;

[0083] The tension fluctuation influence signal includes: tension fluctuation influence signal and tension fluctuation no influence signal;

[0084] In some implementation schemes, during the wire drawing process, the segmented quality coefficient and tension fluctuation value of each detection period within the target time period (the target time period includes multiple detection periods) are obtained; based on the segmented quality coefficient and tension fluctuation value of the detection period, the segmented quality coefficient and tension fluctuation value are calculated by ratio, and the influencing parameter ratio is output; the influencing parameter ratios of adjacent detection periods are calculated by absolute difference, and the influencing parameter ratio difference is output; all the influencing parameter ratio differences are calculated by average, and the influencing coefficient is output; the influencing coefficient is compared and analyzed with the influencing coefficient threshold;

[0085] If the influence coefficient is less than the influence coefficient threshold, it is determined that within the target period, the change of the segment quality coefficient and the change of the tension fluctuation value have a large correlation, and a tension fluctuation influence signal is generated;

[0086] If the influence coefficient is ≥ the influence coefficient threshold, it is determined that within the target period, the change of the segment quality coefficient and the change of the tension fluctuation value have a small correlation, and a tension fluctuation no influence signal is generated;

[0087] Exemplarily, the process of obtaining the tension fluctuation value is as follows:

[0088] During the detection period, the tension of the wire drawing machine is monitored in real time to obtain the tension value at each time point; the absolute difference between the tension value at each time point and the standard tension value is calculated respectively, and the tension deviation value at each time point is output; the tension deviation values ​​at all time points are summed up and the total tension deviation value is output; the total tension deviation value is ratio-calculated with the standard tension value, and the tension fluctuation value is output;

[0089] The standard tensile force value is: the tensile force value preset by the process during the preparation of the flexible optical fiber ribbon and cable;

[0090] The technical solution of the embodiment of the present invention is mainly as follows: by real-time monitoring and analysis of the tension fluctuation of the drawing machine during the optical fiber manufacturing process, combined with the quality coefficient of the optical fiber segment, it is determined whether the tension fluctuation has a significant impact on the quality of the entire optical fiber; specifically, the segmented quality coefficient and tension fluctuation value of each detection cycle in the target time period are first obtained, and then the influencing parameter ratio is calculated and the influence coefficient is obtained, and the influence coefficient is compared with the preset influence coefficient threshold to determine the degree of influence of the tension fluctuation on the optical fiber quality, and generate a corresponding tension fluctuation influence signal; thereby, a more comprehensive understanding of the influence of tension fluctuation on the optical fiber quality during the drawing process can be achieved, providing strong support for quality control in the production process. Embodiment 3

[0091] Based on the first and second embodiments, please refer to Figure 3 As shown, the optical fiber is tested to evaluate the quality of the entire optical fiber, which specifically includes the following steps:

[0092] Step 5: Based on the tension fluctuation affecting the signal, the tension fluctuation range is limited to prevent the generation of abnormal signals of optical fiber segmentation;

[0093] In some implementation schemes, based on the tension fluctuation influential signal, the segmented quality coefficient and the tension fluctuation value of the current detection cycle are obtained, and the tension adjustment value is calculated; based on the tension adjustment value, the tension fluctuation range of the next detection cycle is limited to obtain the tension limit range [L1, L2], where L1 is the minimum value of the tension limit range, and L2 is the maximum value of the tension limit range;

[0094] Exemplarily, the process of obtaining the tension adjustment value is as follows:

[0095] Based on the current detection cycle, through the formula: , calculate and obtain the tension adjustment value LT, where LBT is the tension fluctuation adjustment value, BL is the standard tension value, is the detection cycle duration;

[0096] Furthermore, the process of obtaining the tension fluctuation adjustment value is as follows:

[0097] Obtain the segmented quality coefficient of the current detection cycle, perform difference calculation between the segmented quality coefficient and the segmented quality coefficient threshold, and output the segmented quality coefficient deviation value; perform ratio calculation between the segmented quality coefficient deviation value and the influencing parameter ratio mean, and output the tension fluctuation adjustment value;

[0098] Definition: The mean of the influencing parameter ratio is: the mean of all the influencing parameter ratios within the above target time period;

[0099] It needs to be explained that: the basis for calculating the ratio of the segmented quality coefficient deviation value to the average value of the influencing parameter ratio and outputting the tension fluctuation adjustment value is: from the tension fluctuation influence signal generated above, it can be seen that the change in the quality of the optical fiber obtained by the current production is highly correlated with the tension fluctuation provided by the drawing machine used in the current production, that is, the tension fluctuation mainly causes the change in the quality of the optical fiber;

[0100] The process of obtaining the tension limit range [L1, L2] is as follows:

[0101] Obtain the minimum and maximum values ​​of the tension in the current detection cycle, and obtain the fluctuation range of the tension in the current detection cycle [Y1, Y2], where Y1 is the minimum value of the tension in the current detection cycle, and Y2 is the maximum value of the tension in the current detection cycle;

[0102] The minimum value L1 of the tension limit range is calculated by the formula: L1=Y1+LT;

[0103] The maximum value L2 of the tension limit range is calculated by the formula: L2=Y2-LT;

[0104] According to the minimum value L1 of the tension limit range and the maximum value L2 of the tension limit range, the tension limit range [L1, L2] of the next detection cycle is obtained;

[0105] The technical solution of the embodiment of the present invention is mainly as follows: by real-time monitoring and analyzing the tension fluctuation of the drawing machine during the optical fiber manufacturing process, combined with the quality coefficient of the optical fiber segment, the tension fluctuation range is automatically adjusted and limited, thereby preventing the occurrence of abnormal quality of the optical fiber segment; specifically, when the system detects that the tension fluctuation has a significant impact on the optical fiber quality, the tension adjustment value is calculated based on the segment quality coefficient and the tension fluctuation value of the current detection cycle, and then, according to the tension adjustment value, a reasonable tension fluctuation range (i.e., the tension limit range [L1, L2]) is set for the next detection cycle; the tension fluctuation range is automatically adjusted and limited during the optical fiber manufacturing process, thereby preventing the occurrence of abnormal quality of the optical fiber segment and ensuring the quality stability of the optical fiber manufacturing process, which not only improves the controllability of the optical fiber manufacturing process, but also provides a strong guarantee for the improvement of the quality of optical fiber products and the effective control of tension fluctuations during the drawing process. Embodiment 4

[0106] Based on the first, second and third embodiments, please refer to Figure 4 As shown, the method for detecting the optical fiber and evaluating the quality of the entire optical fiber is performed by a drawing monitoring system, and the drawing monitoring system includes:

[0107] Detection data acquisition module: used to perform segmented detection on the entire optical fiber during the drawing process and obtain the detection data of the optical fiber segment;

[0108] Data processing module: based on the detection data of all optical fiber segments, calculate and output the quality coefficient of the entire optical fiber segment;

[0109] Quality assessment module: Based on the quality coefficient of the entire optical fiber, the quality of the entire optical fiber is assessed and a quality assessment signal is generated;

[0110] Impact analysis module: Analyzes the drawing machine to determine whether the tension fluctuation affects the quality of the entire optical fiber and generates a tension fluctuation impact signal;

[0111] Control module: Based on the tension fluctuation influential signal, the tension fluctuation range is limited to prevent the generation of abnormal signals of optical fiber segmentation. Embodiment 5

[0112] The present invention is a flexible optical fiber ribbon cable prepared by a method for processing a flexible optical fiber ribbon cable, comprising: a plurality of positioning rings equidistantly clamped on the surface of a wire tube, the shape of the positioning rings being adapted to the surface of the wire tube, the surface of the positioning rings being equidistantly surrounded by a plurality of clamping grooves, so as to facilitate positioning of the wire tube when the optical fiber enters the interior of the wire tube, and to drive the wire tube to deflect; and a protective ring sleeved on the surface of the positioning ring, used to fix the position of the positioning ring and drive the positioning ring to deflect, the protective ring being composed of two groups of semicircular plates of the same shape, the surface of the protective ring being equidistantly surrounded by A plurality of grooves are provided, and the grooves are of a right-angled trapezoidal structure; a plurality of limit rods are equidistantly installed on the inner wall of the protective ring, and the limit rods are inserted into the inside of the card slots; and a protective layer is sleeved on the outside of the protective ring, and the protective layer is composed of two groups of identical arc-shaped plates to play a buffering role; a plurality of trigger rods are provided on the inner wall of the protective layer, and the lower ends of the trigger rods are located directly above the inclined surface of the groove; a buffer pad fixedly connected to the inner wall of the protective layer is provided between every two groups of the trigger rods, and the lower ends of the buffer pads are in contact with the upper surface of the protective ring, and the surface of the protective layer is covered with an insulating layer.

[0113] The above thresholds are set for the convenience of comparison. The thresholds depend on the amount of sample data and the number of bases set by technicians in this field for each set of sample data.

[0114] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for processing a flexible optical fiber ribbon cable, comprising the following steps: Optical fiber preparation, optical fiber packaging, and protective layer final processing, characterized in that, in the optical fiber preparation, the following steps are included: The entire section of optical fiber obtained during the optical fiber preparation is tested to evaluate the quality of the entire section of optical fiber. The specific method includes the following steps: Step 1: During the drawing process, the entire section of optical fiber is tested in sections to obtain the test data of the optical fiber sections; Step 2: Based on the detection data of all fiber segments, calculate the quality coefficient of the entire fiber segment; Step 3: Based on the quality coefficient of the entire optical fiber, the quality of the entire optical fiber is evaluated to generate a quality evaluation signal; Step 4: During the wire drawing process, obtain the segmented quality coefficient and tension fluctuation value of each detection period within the target time period; based on the segmented quality coefficient and tension fluctuation value of the detection period, perform ratio calculation on the segmented quality coefficient and tension fluctuation value, and output the influencing parameter ratio; perform absolute difference calculation on the influencing parameter ratios of adjacent detection periods, output the influencing parameter ratio difference, perform mean calculation on all influencing parameter ratio differences, and output the influencing coefficient; compare and analyze the influencing coefficient with the influencing coefficient threshold; If the influence coefficient is less than the influence coefficient threshold, a tension fluctuation influence signal is generated; If the influence coefficient ≥ the influence coefficient threshold, a tension fluctuation no influence signal is generated; Step 5: Based on the tension fluctuation affecting the signal, the tension fluctuation range is limited to prevent the generation of abnormal signals of optical fiber segmentation; The specific process of limiting the tension fluctuation range is as follows: Based on the tension fluctuation influential signal, the segmented quality coefficient and the tension fluctuation value of the current detection cycle are obtained, and the tension adjustment value is calculated; based on the tension adjustment value, the tension fluctuation range of the next detection cycle is limited to obtain the tension limit range [L1, L2], where L1 is the minimum value of the tension limit range, and L2 is the maximum value of the tension limit range; The process of obtaining the tension limit range [L1, L2] is as follows: Obtain the minimum and maximum values ​​of the tension in the current detection cycle, and obtain the fluctuation range of the tension in the current detection cycle [Y1, Y2], where Y1 is the minimum value of the tension in the current detection cycle, and Y2 is the maximum value of the tension in the current detection cycle; The minimum value L1 of the tension limit range is calculated by the formula: L1=Y1+LT; The maximum value L2 of the tension limit range is calculated by the formula: L2=Y2-LT; According to the minimum value L1 of the tension limit range and the maximum value L2 of the tension limit range, the tension limit range [L1, L2] of the next detection cycle is obtained; The process of obtaining the tension adjustment value is as follows: Based on the current detection cycle, obtain the tension fluctuation adjustment value; By formula: , calculate and obtain the tension adjustment value LT, where LBT is the tension fluctuation adjustment value, BL is the standard tension value, is the detection cycle duration; The process of obtaining the tension fluctuation adjustment value is as follows: Obtain the segmented quality coefficient of the current detection cycle, perform difference calculation between the segmented quality coefficient and the segmented quality coefficient threshold, and output the segmented quality coefficient deviation value; perform ratio calculation between the segmented quality coefficient deviation value and the mean of the influencing parameter ratio, and output the tension fluctuation adjustment value.

2. A method for processing a flexible optical fiber ribbon cable according to claim 1, characterized in that: The process of acquiring the detection data is as follows: The test data include: segment quality coefficient; Obtain the fiber segments obtained through the drawing process during the detection period and mark them as fiber segments; detect the fiber segments to obtain the drawing coefficient and uniformity coefficient of the fiber segments; sum the drawing coefficient and the uniformity coefficient and output the segment quality coefficient.

3. A method for processing a flexible optical fiber ribbon cable according to claim 2, characterized in that: The process of obtaining the quality coefficient of the entire optical fiber is as follows: Based on the segment quality coefficients of all optical fiber segments, the ratio of the number of abnormal optical fiber segments and the total value of the segment quality coefficients are obtained, the ratio of the number of abnormal optical fiber segments and the total value of the segment quality coefficients are multiplied to calculate the product, and the quality coefficient of the entire optical fiber segment is output.

4. A method for processing a flexible optical fiber ribbon cable according to claim 3, characterized in that: The process of generating the quality assessment signal is as follows: The quality assessment signals include: qualified quality signals and unqualified quality signals; Comparing and analyzing the quality coefficient of the entire optical fiber section with the quality coefficient threshold of the entire optical fiber section; If the quality coefficient of the entire optical fiber section is greater than the quality coefficient threshold of the entire optical fiber section, a quality failure signal is generated; If the quality coefficient of the entire optical fiber section is less than or equal to the quality coefficient threshold of the entire optical fiber section, a quality qualified signal is generated.

5. A method for processing a flexible optical fiber ribbon cable according to claim 1, characterized in that: The process of obtaining the tension fluctuation value is as follows: During the detection period, the tension of the wire drawing machine is monitored in real time to obtain the tension value at each time point; the absolute difference between the tension value at each time point and the standard tension value is calculated respectively, and the tension deviation value at each time point is output; the tension deviation values ​​of all time points are summed up and the total tension deviation value is output; the total tension deviation value is ratio-calculated with the standard tension value, and the tension fluctuation value is output.

6. A flexible optical fiber ribbon cable, characterized in that: The flexible optical fiber ribbon cable is prepared by the processing method described in any one of claims 1 to 5.

Images