A luminous optical fiber fabric detection device

Abstract

The present invention discloses a detecting device for luminous optical fiber fabric, which comprises a base, an unwinding roller, a winding roller, a luminous mechanism and an image detecting mechanism. The unwinding roller and the winding roller are respectively installed on both sides of the base. The luminous mechanism includes a driving component and two groups of luminous components. The two groups of luminous components are located on both sides of the conveying direction of the optical fiber fabric. The driving component is arranged on the base and is used for driving the two groups of luminous components to approach or move away from each other. In the present invention, the driving component drives the two luminous components to approach both sides of the fabric, and the first shielding cover and the second shielding cover clamp the upper and lower sides of the fabric, so as to form a closed light-shielding space. The light emitted by the light source can enter from the optical fibers on one side of the fabric, so that the optical fiber fabric can emit light, and then the image detecting mechanism compares and detects the similarity of the pattern shapes between the to-be-detected luminous pattern and the standard luminous pattern of the optical fiber fabric.

Description

Technical Field

[0001] The present invention discloses a detection device for luminous optical fiber fabric, belonging to the technical field of luminous fabric detection. Background Art

[0002] With the development of society and the progress of technology, there are luminous textile fabrics in the current market. These luminous textile fabrics are usually made by coating, printing or gluing a layer of reflective material or fluorescent powder on ordinary fabrics. Their luminous condition is that they must be illuminated to emit light, and they cannot emit light by themselves in the dark. Moreover, after being washed many times, the materials coated on the textile fabrics will fall off, and their service life is not long. At present, optical fibers are woven into the main yarn during the weaving process of luminous fabrics. The positions where the optical fibers need to emit light are pre-worn. When the light emitted by the light source enters the optical fibers, total reflection cannot occur at the worn positions of the optical fibers, and the light escapes, so as to emit light on the surface of the fabric. After the existing luminous optical fiber fabric is woven, it is necessary to detect the luminous pattern of the fabric to ensure that the luminous pattern meets the production requirements. The detection method usually requires manually connecting the optical fiber ports on both sides of the fabric to the light source. Using this method, continuous detection cannot be achieved, and it is time-consuming and laborious to disassemble and assemble the light source each time. At the same time, when the luminous pattern is viewed by the naked eye and there is an error between the luminous pattern and the standard luminous pattern, manual detection cannot make an accurate judgment. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems in the prior art and provide a detection device for luminous optical fiber fabric.

[0004] The present invention achieves the above object through the following technical solutions. A detection device for a luminous optical fiber fabric includes a base, an unwinding roller, a winding roller, a luminous mechanism, and an image detection mechanism. The unwinding roller and the winding roller are respectively installed on both sides of the base, and a power assembly is provided at one end of the winding roller. The luminous mechanism includes a driving assembly and two groups of luminous components. The two groups of luminous components are located on both sides of the conveying direction of the optical fiber fabric. The driving assembly is arranged on the base and is used to drive the two groups of luminous components to approach or move away from each other. The luminous component includes a sliding seat, a cylinder, a fixed shaft, a first shielding cover, a second shielding cover, and a light source. The fixed shaft penetrates through the cylinder and is fixedly connected to the cylinder by bolts. The fixed shaft is installed on the sliding seat. The position of the fixed shaft inside the cylinder has a through groove, and the light source is installed in the through groove, and the height of the light source is consistent with the conveying height of the optical fiber fabric. One side of the cylinder close to the optical fiber fabric has an open end. The first shielding cover and the second shielding cover are rotatably arranged on the outside of the cylinder. A transmission assembly is provided on the fixed shaft for driving the first shielding cover and the second shielding cover to rotate to close the open end. The image detection mechanism includes a mounting frame, a camera assembly, and an image comparison and processing system. The camera assembly is arranged on the mounting frame. The image comparison and processing system is coupled to the camera assembly, and the image comparison and processing system compares the shape similarity of the pattern of the luminous pattern to be measured of the optical fiber fabric captured by the camera assembly with the standard luminous pattern.

[0005] Preferably, the transmission assembly includes a first motor, a driving bevel gear, a first driven bevel gear, and a second driven bevel gear. A fixed block is provided on the sliding seat. The first motor is installed on the fixed block. The first driven bevel gear is fixed on the first shielding cover. The second driven bevel gear is fixed on the second shielding cover. The driving bevel gear is fixed on the output shaft of the first motor, and the driving bevel gear meshes with the first driven bevel gear and the second driven bevel gear.

[0006] Preferably, the first shielding cover includes a first arc-shaped plate and a first fixing plate. There are two first fixing plates, which are integrally formed with the first arc-shaped plate. The second shielding cover includes a second arc-shaped plate and a second fixing plate. There are two second fixing plates. One of the second fixing plates is integrally formed with the second arc-shaped plate, and the second driven bevel gear is fixedly connected to this second fixing plate by bolts. The other second fixing plate is fixedly connected to the second arc-shaped plate by bolts. One end of the first driven bevel gear passes through the second driven bevel gear and is fixedly connected to the first fixing plate by bolts. The fixed shaft penetrates through the first driven bevel gear and the first fixing plate, and the second fixing plate away from the second driven bevel gear is rotatably arranged on the outside of the first fixing plate.

[0007] Preferably, rubber strips are provided on the sides of the first shielding cover and the second shielding cover that are close to each other, and reflective coatings are applied to the inner walls of the cylinder, the first shielding cover, and the second shielding cover.

[0008] Preferably, two sets of connecting members are provided between the fixed shaft and the cylinder. The connecting members include two semi-circular fixing pieces. An annular groove is provided on the fixed shaft, and the two semi-circular fixing pieces are stuck inside the annular groove, and the semi-circular fixing pieces are fixedly connected to the cylinder by bolts.

[0009] Preferably, the driving assembly includes a second motor, a screw rod, a guide rod, and a fixed seat. There are two fixed seats and two guide rods. The fixed seats are fixedly installed on the base. The screw rod and the guide rod are both rotatably connected to the two fixed seats. The output shaft of the second motor is fixedly connected to one end of the screw rod. The screw rod has two threads with opposite helix directions, and the screw rod is threadedly connected to the two sliding seats.

[0010] Preferably, the image comparison and processing system includes an image preprocessing module, an image storage module, and an image comparison module. The image preprocessing module is coupled to the camera assembly, and after obtaining the luminous pattern of the optical fiber fabric captured by the camera assembly, it removes the background of the optical fiber fabric to obtain the to-be-tested luminous pattern. The image storage module is coupled to the image preprocessing module, and after obtaining the to-be-tested luminous pattern, it processes it into a grayscale image. The image comparison module is coupled to the image storage module, and after obtaining the grayscale image, it compares the pattern shape similarity with the standard luminous pattern.

[0011] Preferably, the detection method for the pattern shape similarity comparison includes the following steps:

[0012] S1: Divide the standard luminous pattern into several identification points according to each luminous pixel point;

[0013] S2: Mark the connection points A of all adjacent two contour lines of the grayscale image. The set of connection points A is {A1, A2,..., AN}. Mark the connection points B of all adjacent two contour lines of all standard luminous patterns. The set of connection points B is {B1, B2,..., BN}, where AN and BN are one of the connection points;

[0014] S3: Select any two connection points with the same features in the grayscale image and the standard luminous pattern for point-to-point alignment and coverage, that is, A1 is aligned with B1, AN is aligned with BN, and let the grayscale image cover the surface of the standard luminous pattern;

[0015] S4: Count the number C of the identification points in the standard luminous pattern covered by the grayscale image and the number D of the identification points in the standard luminous pattern not covered by the grayscale image, and then calculate the pattern shape similarity F = C / (C + D);

[0016] S5: Repeat steps S3 and S4, reselect the grayscale image and any other two connection points with the same features in the standard luminous pattern for point-to-point alignment and coverage, and obtain a set of calculation results of pattern shape similarity F as {F1, F2, ..., FN}, where FN is one of the calculation results. When the maximum calculation result FN in the set is ≥95%, it means that the luminous pattern to be tested of the optical fiber cloth meets the standard. When the maximum calculation result FN in the set is <95%, it means that the luminous pattern to be tested of the optical fiber cloth does not meet the standard, and a warning signal is issued.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By setting up a light-emitting mechanism and an image detection mechanism, the optical fiber cloth is conveyed under the drive of a winding roller and a power component. The light-emitting mechanism can clamp the two sides of a certain light-emitting pattern of the optical fiber cloth and form a closed light-shielding space. The light emitted by the light source directly irradiates or reflects into the optical fiber. The light propagates in the optical fiber and forms a light-emitting pattern to be tested on the surface of the optical fiber cloth. Subsequently, the light-emitting pattern to be tested and the standard light-emitting pattern are compared for pattern shape similarity by means of the image detection mechanism, thereby detecting the weaving quality of the light-emitting pattern of the optical fiber cloth. Automatic and continuous detection can be achieved with high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a light-emitting optical fiber cloth detection device of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the driving component and the light-emitting component in the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the light-emitting component and the transmission component in the present invention;

[0022] Figure 4 An exploded view of the first shielding cover, the second shielding cover, the first driven bevel gear and the second driven vertical wheel in the present invention;

[0023] Figure 5 It is a structural schematic diagram of the cylinder in the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the fixed shaft and the connecting member in the present invention;

[0025] Reference numerals: 1, base; 2, unwinding roller; 3, transmission assembly; 4, imaging assembly; 5, mounting bracket; 6, winding roller; 7, drive assembly; 8, light-emitting assembly; 9, cylinder; 10, first shielding cover; 11, second shielding cover; 12, second driven bevel gear; 13, driving bevel gear; 14, first driven bevel gear; 15, screw; 16, sliding seat; 17, guide rod; 18, fixing block; 19, first motor; 20, second motor; 21, fixing seat; 22, fixing shaft; 23, connecting piece; 24, through groove; 25, light source; 26, first arc-shaped plate; 27, rubber strip; 28, first fixing plate; 29, second arc-shaped plate; 30, second fixing plate; 31, open end; 32, semi-circular fixing piece. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figures 1-6 shown, a luminous optical fiber fabric detection device includes a base 1, an unwinding roller 2, a winding roller 6, a light-emitting mechanism and an image detection mechanism. The unwinding roller 2 and the winding roller 6 are respectively installed on both sides of the base 1, and a power assembly is provided at one end of the winding roller 6. The light-emitting mechanism includes a drive assembly 7 and two groups of light-emitting assemblies 8. The two groups of light-emitting assemblies 8 are located on both sides of the conveying direction of the optical fiber fabric. The drive assembly 7 is arranged on the base 1 and is used to drive the two groups of light-emitting assemblies 8 to approach or move away from each other. The light-emitting assembly 8 includes a sliding seat 16, a cylinder 9, a fixing shaft 22, a first shielding cover 10, a second shielding cover 11 and a light source 25. The fixing shaft 22 passes through the cylinder 9 and the two are fixedly connected by bolts. The fixing shaft 22 is installed on the sliding seat 16. A through groove 24 is provided at the position of the fixing shaft 22 inside the cylinder 9. The light source 25 is installed in the through groove 24, and the height of the light source 25 is the same as the conveying height of the optical fiber fabric. An open end 31 is provided on the side of the cylinder 9 close to the optical fiber fabric. The first shielding cover 10 and the second shielding cover 11 are rotatably arranged on the outside of the cylinder 9. A transmission assembly 3 for driving the first shielding cover 10 and the second shielding cover 11 to rotate to close the open end 31 is provided on the fixing shaft 22. The image detection mechanism includes a mounting bracket 5, an imaging assembly 4 and an image comparison and processing system. The imaging assembly 4 is arranged on the mounting bracket 5. The image comparison and processing system is coupled to the imaging assembly 4, and the image comparison and processing system compares the shape similarity of the luminous pattern to be measured of the optical fiber fabric captured by the imaging assembly 4 with the standard luminous pattern.

[0028] The transmission assembly 3 includes a first motor 19, a driving bevel gear 13, a first driven bevel gear 14 and a second driven bevel gear 12. A fixing block 18 is arranged on the sliding seat 16, and the first motor 19 is installed on the fixing block 18. The first driven bevel gear 14 is fixed on the first shielding cover 10, and the second driven bevel gear 12 is fixed on the second shielding cover 11. The driving bevel gear 13 is fixed on the output shaft of the first motor 19, and the driving bevel gear 13 meshes with the first driven bevel gear 14 and the second driven bevel gear 12. The first motor 19 drives the driving bevel gear 13 to rotate, so that the driving bevel gear 13 drives the first driven bevel gear 14 and the second driven bevel gear 12 to rotate in opposite directions, thereby driving the first shielding cover 10 and the second shielding cover 11 to move synchronously. In this way, the first shielding cover 10 and the second shielding cover 11 can shield the opening 31 of the cylinder 9 to detect the luminous pattern of the optical fiber fabric. When the first shielding cover 10 and the second shielding cover 11 no longer shield the opening 31 of the cylinder 9, the optical fiber fabric can be conveyed and fed to detect the luminous pattern at the next position.

[0029] The first shielding cover 10 includes a first arc plate 26 and a first fixing plate 28. There are two first fixing plates 28, which are integrally formed with the first arc plate 26. The second shielding cover 11 includes a second arc plate 29 and a second fixing plate 30. There are two second fixing plates 30. One of the second fixing plates 30 is integrally formed with the second arc plate 29, and the second driven bevel gear 12 is fixed on this second fixing plate 30 by bolts. The other second fixing plate 30 is fixedly connected to the second arc plate 29 by bolts. One end of the first driven bevel gear 14 passes through the second driven bevel gear 12 and is fixed to the first fixing plate 28 by bolts. The fixed shaft 22 passes through the first driven bevel gear 14 and the first fixing plate 28. The second fixing plate 30 far from the second driven bevel gear 12 is rotatably arranged outside the first fixing plate 28. The first shielding cover 10, the second shielding cover 11, the first driven bevel gear 14 and the second driven bevel gear 12 are set into a split structure, so that each component can be better installed on the cylinder 9 and the fixed shaft 22.

[0030] Rubber strips 27 are arranged on the sides of the first shielding cover 10 and the second shielding cover 11 close to each other. The inner walls of the cylinder 9, the first shielding cover 10 and the second shielding cover 11 are coated with a reflective coating. When the first shielding cover 10 and the second shielding cover 11 are in contact, the rubber strips 27 are deformed under pressure, avoiding excessive extrusion of the optical fiber fabric. At the same time, the two sides of the first shielding cover 10 and the second shielding cover 11 can be sealed, thereby reducing the light leakage of the light emitted by the light source 25 to ensure that light enters all optical fibers.

[0031] There are two sets of connecting pieces 23 arranged between the fixed shaft 22 and the cylinder 9. The connecting piece 23 includes two semi-circular fixing pieces 32. An annular groove is provided on the fixed shaft 22. The two semi-circular fixing pieces 32 are stuck on the inner side of the annular groove, and the semi-circular fixing pieces 32 are fixedly connected to the cylinder 9 by bolts. With this design structure, the fixed shaft 22 and the cylinder 9 can be fixedly connected, and the fixed shaft 22 and the sliding seat 16 remain stationary. In this way, the cylinder 9 also remains stationary when the first shielding cover 10 and the second shielding cover 11 rotate.

[0032] The driving assembly 7 includes a second motor 20, a screw rod 15, a guide rod 17 and a fixed seat 21. There are two fixed seats 21 and two guide rods 17. The fixed seat 21 is fixedly installed on the base 1. The screw rod 15 and the guide rod 17 are both rotatably connected to the two fixed seats 21. The output shaft of the second motor 20 is fixedly connected to one end of the screw rod 15. The screw rod 15 has two threads with opposite helix directions, and the screw rod 15 is threadedly connected to the two sliding seats 16. When the second motor 20 drives the screw rod 15 to rotate, the two sliding seats 16 can move in directions away from or close to each other, which can adapt to the detection work of luminous patterns of fiber fabrics with different widths, and at the same time can also adjust the clamping positions of the first shielding cover 10 and the second shielding cover 11 on the fiber fabric, so as to ensure the smooth progress of the detection of the luminous pattern. In this embodiment, the power assembly can adopt a motor or other power forms to drive the winding roller 6 to rotate, so as to realize the winding of the fiber fabric.

[0033] The image comparison and processing system includes an image preprocessing module, an image storage module and an image comparison module. The image preprocessing module is coupled to the camera assembly 4, and after obtaining the luminous pattern of the fiber fabric captured by the camera assembly 4, it removes the background of the fiber fabric to obtain the to-be-detected luminous pattern. The image storage module is coupled to the image preprocessing module, and after obtaining the to-be-detected luminous pattern, it processes it into a grayscale image. The image comparison module is coupled to the image storage module, and after obtaining the grayscale image, it compares the pattern shape similarity with the standard luminous pattern.

[0034] The detection method for pattern shape similarity comparison includes the following steps:

[0035] S1: Divide the standard luminous pattern into several identification points according to each luminous pixel point;

[0036] S2: Mark the connection points A of all adjacent two contour lines of the grayscale image. The set of connection points A is {A1, A2,..., AN}, mark the connection points B of all adjacent two contour lines of all standard luminous patterns, and the set of connection points B is {B1, B2,..., BN}, where AN and BN are one of the connection points;

[0037] S3: Select connection points of any two identical features in the grayscale image and the standard luminous pattern for point-to-point alignment and coverage, i.e., align A1 with B1 and AN with BN, and place the grayscale image on the surface of the standard luminous pattern;

[0038] S4: Count the number C of identification points in the standard luminous pattern covered by the grayscale image and the number D of identification points in the standard luminous pattern not covered by the grayscale image, and then calculate the pattern shape similarity F = C / (C + D);

[0039] S5: Repeat steps S3 and S4, re-select connection points of any other two identical features in the grayscale image and the standard luminous pattern for point-to-point alignment and coverage, and obtain a set of calculation results of the pattern shape similarity F as {F1, F2,..., FN}, where FN is one of the calculation results. When the maximum calculation result FN in this set ≥ 95%, it means that the to-be-tested luminous pattern of the optical fiber fabric meets the standard. When the maximum calculation result FN in this set < 95%, it means that the to-be-tested luminous pattern of the optical fiber fabric does not meet the standard, and a warning signal is issued.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A light-emitting optical fiber cloth detection device, comprising a base (1), a reel (2), a reel (6), a light-emitting mechanism and an image detection mechanism, characterized in that: The unwinding roller (2) and the winding roller (6) are respectively mounted on both sides of the base (1), and a power assembly is provided at one end of the winding roller (6). The light-emitting mechanism comprises a driving assembly (7) and two groups of light-emitting assemblies (8), the two groups of light-emitting assemblies (8) being located on both sides of the optical fiber cloth conveying direction. The driving assembly (7) is arranged on the base (1) and is used to drive the two groups of light-emitting assemblies (8) to move closer to or farther from each other. The light-emitting assembly (8) comprises a sliding seat (16), a cylinder (9), a fixed shaft (22), a first shielding cover (10), a second shielding cover (11) and a light source (25). The fixed shaft (22) is arranged to penetrate the cylinder (9), and the two are fixedly connected by bolts. The fixed shaft (22) is mounted on the sliding seat (16), and the fixed shaft (22) has a through groove (24) at a position located inside the cylinder (9). The light source (25) is installed in the through groove (24), and the height of the light source (25) is consistent with the conveying height of the optical fiber cloth. The cylinder (9) has an opening (31) on a side close to the optical fiber cloth. The first shielding cover (10) and the second shielding cover (11) are rotatably arranged on the outside of the cylinder (9). The fixed shaft (22) is provided with a transmission assembly (3) for driving the first shielding cover (10) and the second shielding cover (11) to rotate so as to close the opening (31). The image detection mechanism comprises a mounting frame (5), a camera assembly (4) and an image comparison processing system. The camera assembly (4) is arranged on the mounting frame (5). The image comparison processing system is coupled to the camera assembly (4). The image comparison processing system compares the light emission pattern of the optical fiber cloth to be tested captured by the camera assembly (4) with the standard light emission pattern for pattern shape similarity.

2. A light-emitting optical fiber cloth detection device according to claim 1, characterized in that: The transmission assembly (3) comprises a first motor (19), a driving bevel gear (13), a first driven bevel gear (14) and a second driven bevel gear (12); a fixing block (18) is provided on the sliding seat (16); the first motor (19) is mounted on the fixing block (18); the first driven bevel gear (14) is fixed on a first shielding cover (10); the second driven bevel gear (12) is fixed on a second shielding cover (11); the driving bevel gear (13) is fixed on an output shaft of the first motor (19); and the driving bevel gear (13) is meshed with the first driven bevel gear (14) and the second driven bevel gear (12).

3. A light-emitting optical fiber cloth detection device according to claim 2, characterized in that: The first shielding cover (10) comprises a first arc-shaped plate (26) and a first fixing plate (28), two of which are provided and are integrally formed with the first arc-shaped plate (26); the second shielding cover (11) comprises a second arc-shaped plate (29) and a second fixing plate (30), two of which are provided, one of which is integrally formed with the second arc-shaped plate (29), and the second driven bevel gear (12) is fixed to the second fixing plate (30) by bolts, and the other of which is fixedly connected to the second arc-shaped plate (29) by bolts; one end of the first driven bevel gear (14) passes through the second driven bevel gear (12) and is fixedly connected to the first fixing plate (28) by bolts; the fixing shaft (22) passes through the first driven bevel gear (14) and the first fixing plate (28), and the second fixing plate (30) away from the second driven bevel gear (12) is rotatably provided on the outside of the first fixing plate (28).

4. The luminous optical fiber cloth detection device according to claim 1, characterized in that: A rubber strip (27) is provided on one side of the first shielding cover (10) and the second shielding cover (11) that are close to each other, and the inner walls of the cylinder (9), the first shielding cover (10) and the second shielding cover (11) are coated with a reflective coating.

5. The luminous optical fiber cloth detection device according to claim 1, characterized in that: Two groups of connecting members (23) are provided between the fixed shaft (22) and the cylinder (9), and the connecting members (23) include two semicircular fixing plates (32). An annular groove is provided on the fixed shaft (22), and the two semicircular fixing plates (32) are clamped inside the annular groove. The semicircular fixing plates (32) are fixedly connected to the cylinder (9) by bolts.

6. The luminous optical fiber cloth detection device according to claim 1, characterized in that: The driving assembly (7) comprises a second motor (20), a screw (15), a guide rod (17) and a fixed seat (21). Two of the fixed seat (21) and the guide rod (17) are provided. The fixed seat (21) is fixedly mounted on the base (1). The screw (15) and the guide rod (17) are rotatably connected to the two fixed seats (21). The output shaft of the second motor (20) is fixedly connected to one end of the screw (15). The screw (15) has two sections of threads with opposite rotation directions, and the screw (15) is threadedly connected to the two sliding seats (16).

7. The luminous optical fiber cloth detection device according to claim 1, characterized in that: The image comparison processing system comprises an image preprocessing module, an image storage module and an image comparison module. The image preprocessing module is coupled to the camera assembly (4) and removes the background of the optical fiber cloth after acquiring the optical fiber cloth luminous pattern photographed by the camera assembly (4) to obtain the luminous pattern to be measured. The image storage module is coupled to the image preprocessing module and processes the luminous pattern to be measured into a grayscale image after acquiring the luminous pattern to be measured. The image comparison module is coupled to the image storage module and performs pattern shape similarity comparison with a standard luminous pattern after acquiring the grayscale image.

8. The light-emitting optical fiber cloth detection device according to claim 7, characterized in that: The detection method for pattern shape similarity comparison comprises the following steps: S1: Divide the standard luminous pattern into a number of identification points according to each luminous pixel point; S2: mark the connection points A of all two adjacent contour lines of the grayscale image, the set of connection points A is {A1, A2, ..., AN}, mark the connection points B of all two adjacent contour lines of all standard luminous patterns, the set of connection points B is {B1, B2, ..., BN}, where AN and BN are one of the connection points; S3: Select any two connection points with the same features in the grayscale image and the standard luminous pattern for point-to-point alignment, i.e., A1 is aligned with B1, AN is aligned with BN, and the grayscale image is covered on the surface of the standard luminous pattern; S4: Count the number of identification points C in the standard luminous pattern covered by the grayscale image and the number of identification points D in the standard luminous pattern not covered by the grayscale image, and then calculate the pattern shape similarity F=C / (C+D); S5: Repeat steps S3 and S4, reselect the grayscale image and any other two connection points with the same features in the standard luminous pattern for point-to-point alignment and coverage, and obtain a set of calculation results of pattern shape similarity F as {F1, F2, ..., FN}, where FN is one of the calculation results. When the maximum calculation result FN in the set is ≥95%, it means that the luminous pattern to be tested of the optical fiber cloth meets the standard. When the maximum calculation result FN in the set is <95%, it means that the luminous pattern to be tested of the optical fiber cloth does not meet the standard, and a warning signal is issued.

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