Intelligent identification device based on DVS optical cable

Abstract

The invention relates to the technical field of image character recognition, in particular to a DVS-based optical cable intelligent recognition device, which comprises a device shell, and is characterized in that a conveying straightening mechanism, a cleaning mechanism and an image recognition mechanism are arranged on the device shell; the conveying and straightening mechanism comprises four fixed vertical plates fixedly connected to the bottom of the inner wall of the device shell, two first vertical plates are fixedly connected to the top ends of the four fixed vertical plates, and a plurality of driving shafts rotationally penetrate through the two first vertical plates; the outer wall of each driving shaft is fixedly connected with a driving roller. The device further comprises electric push rods symmetrically and fixedly connected to the two sides of the top end of the device shell. The optical cable can be straightened in the conveying stage, character arrangement is restored to the standard state, the recognition accuracy is remarkably improved, highlight or shadow interference is effectively eliminated, character information is prevented from being partially lost, and convenient conditions are provided for recognition operation.

Description

Technical Field

[0001] This invention relates to the field of image character recognition technology, and in particular to a smart recognition device based on DVS optical cable. Background Technology

[0002] Power grid companies are building a three-dimensional, highly resilient energy communication network using optical fiber as the "wired foundation" and wireless networking as the "flexible wings." As the core transmission channel of the power grid, optical fiber, with its characteristics of high bandwidth, low latency, and strong anti-interference, undertakes the stable transmission of key services such as dispatch automation commands, relay protection signals, and power metering data. It is the "nerve backbone" of scenarios such as ultra-high voltage power transmission and smart substations. Meanwhile, wireless networking (such as 5G private networks, LoRa, and power wireless private networks) has the advantages of flexible deployment and rapid coverage, becoming a supplement to the "nerve endings" of optical fiber. In the inspection of power transmission lines in remote mountainous areas, drones transmit high-definition images back through 5G + optical fiber.

[0003] The optical cable outer surface character intelligent recognition device based on DVS (distributed optical fiber vibration sensing) can be defined as a device that integrates distributed optical fiber vibration sensing technology and intelligent image recognition algorithm, and triggers the character recognition process by monitoring the optical cable vibration signal to achieve accurate identification of the optical cable.

[0004] In existing technologies, when recognizing characters on the outer surface of a figure-eight optical cable, the cable is directly placed on a conveyor wheel for transport. Then, a visual recognition device is used to recognize the characters on the cable. However, the cable is bent before recognition. When the cable is bent, the characters on the outer surface (such as model number, production date, and meter mark) are stretched, compressed, or twisted, causing character deformation and reducing recognition accuracy. The bent surface may also produce highlights or shadows due to uneven light reflection, obscuring character details and causing missing parts of the characters.

[0005] Furthermore, the lack of cleaning of the figure-eight fiber optic cable before identification resulted in dust adhering to the outer surface of the cable affecting identification and further impacting its accuracy. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a smart identification device based on DVS optical cables.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a smart identification device based on DVS optical cable, comprising a device housing, wherein a conveying and straightening mechanism, a cleaning mechanism and an image recognition mechanism are provided on the device housing;

[0008] The conveying and straightening mechanism includes four fixed upright plates fixedly connected to the bottom of the inner wall of the device housing. Two first vertical plates are fixedly connected to the top of the four fixed upright plates. Multiple drive shafts rotatably pass between the two first vertical plates. A drive roller is fixedly connected to the outer wall of each drive shaft. The mechanism also includes electric push rods symmetrically fixedly connected to both sides of the top of the device housing. A U-shaped frame is fixedly connected to the telescopic ends of the two electric push rods. Two second vertical plates are fixedly connected to the bottom sides of the two U-shaped frames. Multiple driven shafts rotatably connect between the two second vertical plates. A squeezing roller is fixedly connected to the outer wall of each driven shaft. Each squeezing roller and each drive roller are used to clamp the figure-eight optical cable and straighten it, facilitating character recognition by the image recognition mechanism.

[0009] Preferably, a drive motor is fixedly connected to one end of the first vertical plate on one side, the drive end of the drive motor is fixedly connected to one of the drive shafts, and the multiple drive shafts are connected to each other through a chain transmission structure. Guide columns are symmetrically fixedly connected to the top ends of the two U-shaped frames, and the two sets of guide columns penetrate the outer shell of the device.

[0010] Preferably, a second horizontal plate is fixedly connected to one end of the second vertical plate on one side, and a circular column slides through the second horizontal plate. A pressure sensor is fixedly connected to the bottom end of the circular column, and a circular plate is fixedly connected to the top end of the circular column. A tension spring is fixedly connected to the bottom end of the circular plate corresponding to the outer side of the circular column, and the tension spring is fixedly connected to the second horizontal plate.

[0011] Preferably, a first horizontal plate is fixedly connected to one end of the first vertical plate on one side, corresponding to the side of the drive motor, and the first horizontal plate is positioned directly below the pressure sensor.

[0012] Preferably, the cleaning mechanism includes a cleaning plate fixedly connected to the inner wall of the device housing, the cleaning plate having a figure-eight shaped hole, the inner wall of the figure-eight shaped hole communicating with a cleaning cavity, and a guide block fixedly connected to the inner wall of the cleaning cavity corresponding to the lower part of the figure-eight shaped hole.

[0013] Preferably, two sets of fixing columns are fixedly connected above the figure-eight shaped holes on the inner wall of the cleaning cavity, and a spray plate is fixedly connected between the two sets of fixing columns. The spray plate has a diversion cavity inside, and multiple spray holes are provided at the bottom of the diversion cavity.

[0014] Preferably, water inlet pipes are fixedly connected to both sides of the top of the spray plate, and both water inlet pipes penetrate the cleaning plate. A water outlet pipe is fixedly connected to the bottom of the cleaning plate.

[0015] Preferably, the image recognition mechanism includes a square column fixedly connected to the other side of the inner wall of the device housing. A groove is provided at the bottom end of the square column. A second motor is fixedly connected to one side of the inner wall of the groove. A threaded rod is fixedly connected to the drive end of the second motor. The other end of the threaded rod is rotatably connected to the groove. A movable block that slides on the inner wall of the groove is threadedly connected to the outer wall of the threaded rod. A visual recognition device is fixedly connected to the bottom end of the movable block.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The set conveying and straightening mechanism can clamp the figure-eight optical cable before the conveying operation, ensuring that the squeezing roller and the conveying roller are in close contact with the surface of the optical cable. During the clamping process, the clamping force is monitored in real time by the pressure sensor, which effectively prevents the outer surface of the figure-eight optical cable from deforming due to excessive clamping force, thereby avoiding adverse effects on subsequent character image recognition. At the same time, the device can straighten the optical cable during the conveying stage, so that the character arrangement is restored to the standard state, significantly improving the recognition accuracy, and effectively eliminating the interference of highlights or shadows, preventing partial loss of character information, and providing convenient conditions for recognition operation.

[0018] 2. Through the set cleaning mechanism, cleaning water can be sprayed by the spray plate during the transportation of the figure-eight optical cable to thoroughly clean the outer surface of the figure-eight optical cable. After cleaning, the residual water stains on the surface of the optical cable are scraped off through the specially designed figure-eight hole structure, which effectively avoids dust adhesion from interfering with the subsequent identification process, thereby further improving the accuracy of the identification results.

[0019] 3. By using an image recognition mechanism and a threaded rod transmission mechanism to adjust the axial position of the moving block, the spatial position of the visual recognition device can be adjusted. This design can recognize character information at different locations on a figure-eight optical cable according to actual needs, significantly enhancing the applicability and flexibility of the recognition device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a DVS optical cable intelligent identification device according to the present invention;

[0021] Figure 2 This is another perspective view of the intelligent identification device based on DVS optical cable according to the present invention;

[0022] Figure 3 This is a cross-sectional view of the outer casing of a DVS optical cable intelligent identification device according to the present invention;

[0023] Figure 4 This invention relates to a smart identification device based on DVS optical cables. Figure 3 Enlarged view of the structure at point A in the middle;

[0024] Figure 5 This is a structural diagram of a drive roller based on a DVS optical cable intelligent identification device according to the present invention;

[0025] Figure 6 This is a structural diagram of an extrusion roller based on a DVS optical cable intelligent identification device according to the present invention;

[0026] Figure 7 This is a structural diagram of a cleaning board based on a DVS optical cable intelligent identification device according to the present invention;

[0027] Figure 8 This is a cross-sectional view of a cleaning plate based on a DVS optical cable intelligent identification device according to the present invention;

[0028] Figure 9 This is a partial cross-sectional view of a spraying plate based on a DVS optical cable intelligent identification device according to the present invention;

[0029] Figure 10 This is a processing state diagram of a DVS optical cable intelligent identification device according to the present invention.

[0030] In the diagram: 1. Device housing; 2. U-shaped frame; 3. Square column; 4. Extrusion roller; 5. Drive motor; 6. Fixed vertical plate; 7. Drive roller; 8. Drive shaft; 9. Chain drive structure; 10. First vertical plate; 11. Guide column; 12. Electric push rod; 13. Water inlet pipe; 14. Cleaning cavity; 15. Cleaning plate; 16. Figure-eight hole; 17. Water outlet pipe; 18. Guide block; 19. Circular plate; 20. Second vertical plate; 21. Vision recognition device; 22. Slide groove; 23. Threaded rod; 24. Moving block; 25. Second motor; 26. First horizontal plate; 27. Pressure sensor; 28. Circular column; 29. ​​Second horizontal plate; 30. Tension spring; 31. Driven shaft; 32. Fixed column; 33. Spray plate; 34. Spray hole; 35. Diverting cavity; 36. Figure-eight optical cable. Detailed Implementation

[0031] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0032] like Figures 1-10The illustrated intelligent identification device based on DVS optical cable includes a device housing 1. The housing 1 is equipped with a conveying and straightening mechanism, a cleaning mechanism, and an image recognition mechanism. The conveying and straightening mechanism straightens the figure-eight shaped optical cable 36 to facilitate subsequent character recognition operations. The cleaning mechanism cleans the outer surface of the figure-eight shaped optical cable 36 before straightening to prevent dust adhering to the outer surface from affecting subsequent character recognition. The image recognition mechanism recognizes characters on the outer surface of the figure-eight shaped optical cable 36 and can adjust the processing based on the position of the characters. The conveying and straightening mechanism includes a fixed upright plate 6 fixedly connected to the bottom of the inner wall of the housing 1. There are four fixed vertical plates 6. Two first vertical plates 10 are fixedly connected to the top of the four fixed vertical plates 6. Multiple drive shafts 8 are rotatably connected between the two first vertical plates 10. Each drive shaft 8 is fixedly connected to the outer wall of a drive roller 7. Electric push rods 12 are symmetrically fixedly connected to both sides of the top of the device housing 1. U-shaped frames 2 are fixedly connected to the telescopic ends of the two electric push rods 12. Two second vertical plates 20 are fixedly connected to the bottom sides of the two U-shaped frames 2. Multiple driven shafts 31 are rotatably connected between the two second vertical plates 20. Each driven shaft 31 is fixedly connected to the outer wall of a squeeze roller 4. Each squeeze roller 4 and each drive roller 7 are used to clamp the figure-eight optical cable 36 and straighten the figure-eight optical cable 36 to facilitate character recognition by the image recognition mechanism.

[0033] like Figure 1 , Figure 2 , Figure 3 As shown, a drive motor 5 is fixedly connected to one end of the first vertical plate 10 on one side. The drive end of the drive motor 5 is fixedly connected to one of the drive shafts 8. Multiple drive shafts 8 are connected to each other through a chain transmission structure 9. Guide columns 11 are symmetrically fixedly connected to the top ends of the two U-shaped frames 2. Both sets of guide columns 11 penetrate the outer shell 1 of the device. The drive motor 5 provides the transmission power, and the chain transmission structure 9 makes each drive shaft 8 rotate synchronously to make them rotate at the same speed. The guide columns 11 guide the U-shaped frames 2 to keep the up and down movement stable.

[0034] like Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a second horizontal plate 29 is fixedly connected to one end of a second vertical plate 20 on one side. A circular column 28 slides through the second horizontal plate 29. A pressure sensor 27 is fixedly connected to the bottom end of the circular column 28. A circular plate 19 is fixedly connected to the top end of the circular column 28. A tension spring 30 is fixedly connected to the bottom end of the circular plate 19 corresponding to the outer side of the circular column 28. The tension spring 30 is fixedly connected to the second horizontal plate 29. A first horizontal plate 26 is fixedly connected to one end of a first vertical plate 10 on one side corresponding to the side of the drive motor 5. The first horizontal plate 26 is located directly below the pressure sensor 27. The second horizontal plate 29 guides and limits the circular column 28. When the pressure sensor 27 contacts the first horizontal plate 26, it generates data, thereby preventing excessive clamping force and effectively preventing deformation of the outer surface of the figure-eight optical cable 36 due to excessive clamping force, thus avoiding adverse effects on subsequent character image recognition. The tension spring 30 facilitates pressure changes.

[0035] like Figure 2 , Figure 7 , Figure 8 As shown, the cleaning mechanism includes a cleaning plate 15 fixedly connected to the inner wall of the device housing 1. A figure-eight shaped hole 16 is provided on the cleaning plate 15, and a cleaning cavity 14 is connected to the inner wall of the figure-eight shaped hole 16. A guide block 18 is fixedly connected to the inner wall of the cleaning cavity 14 below the figure-eight shaped hole 16. The figure-eight shaped optical cable 36 can pass through the figure-eight shaped hole 16, thereby scraping away water stains on the outer surface of the figure-eight shaped optical cable 36. The guide block 18 guides the figure-eight shaped optical cable 36, preventing the beginning of the figure-eight shaped optical cable 36 from getting stuck in the cleaning cavity 14.

[0036] like Figure 8 , Figure 9 As shown, two sets of fixing posts 32 are fixedly connected above the figure-eight holes 16 on the inner wall of the cleaning cavity 14. A spray plate 33 is fixedly connected between the two sets of fixing posts 32. The fixing posts 32 fix and limit the spray plate 33, so that the spraying direction of the spray holes 34 is always perpendicular to the top surface of the figure-eight optical cable 36, ensuring the cleaning effect. A diversion cavity 35 is provided inside the spray plate 33. Multiple spray holes 34 are provided at the bottom of the diversion cavity 35. Water inlet pipes 13 are fixedly connected to both sides of the top of the spray plate 33. Both water inlet pipes 13 pass through the cleaning plate 15. A water outlet pipe 17 is fixedly passed through the bottom of the cleaning plate 15. Cleaning water is injected into the spray plate 33 through the water inlet pipe 13. Due to the presence of the diversion cavity 35, the cleaning water can be sprayed out through the spray hole 34. Since the shape of the spray plate 33 is similar to the top shape of the figure-eight optical cable 36, the top of the figure-eight optical cable 36 can be sprayed and cleaned. After cleaning, the water stains on the outer surface of the figure-eight optical cable 36 can be scraped off through the figure-eight hole 16. Therefore, the dust on the figure-eight optical cable 36 can be prevented from affecting subsequent identification, and the accuracy of identification can be further guaranteed.

[0037] like Figure 3 As shown, the image recognition mechanism includes a square column 3 fixedly connected to the other side of the inner wall of the device housing 1. A groove 22 is provided at the bottom end of the square column 3. A second motor 25 is fixedly connected to one side of the inner wall of the groove 22. A threaded rod 23 is fixedly connected to the drive end of the second motor 25. The other end of the threaded rod 23 is rotatably connected to the groove 22. A moving block 24 that slides on the inner wall of the groove 22 is threadedly connected to the outer wall of the threaded rod 23. A visual recognition device 21 is fixedly connected to the bottom end of the moving block 24. The visual recognition device 21 identifies the characters on the figure-eight optical cable 36. When the recognition position needs to be changed, the second motor 25 is started to rotate the threaded rod 23. The threaded effect of the threaded rod 23 causes the moving block 24 to move back and forth. Therefore, the position of the visual recognition device 21 can be changed as needed to identify the characters at different positions on the figure-eight optical cable 36, thereby improving the flexibility and applicability of the recognition device. The visual recognition device 21 analyzes and processes the captured image characters through image recognition algorithms and distributed fiber optic vibration sensing technology to determine whether the characters on the outer surface of the figure-eight optical cable 36 are correct, thus achieving accurate recognition.

[0038] Working principle: First, the figure-eight optical cable 36 is passed through the figure-eight hole 16. During the passage, the guide block 18 guides the figure-eight optical cable 36 to prevent the beginning of the figure-eight optical cable 36 from getting stuck in the cleaning cavity 14, thus making the passage smoother. Then, the figure-eight optical cable 36 passes through the drive roller 7 and the squeeze roller 4. At this time, the synchronous controller controls the electric push rods 12 on both sides to push the U-shaped frame 2 downward, thereby moving the second vertical plate 20 and the driven shaft 31 downward, and making the squeeze roller 4 contact the top of the figure-eight optical cable 36. At the same time, the drive roller 7 contacts the bottom of the figure-eight optical cable 36. During clamping, the second horizontal plate 29 carries... As the circular column 28 moves downward, when the pressure sensor 27 contacts the first horizontal plate 26 and generates pressure, it can prevent excessive clamping force, thereby preventing the figure-eight optical cable 36 from being squeezed and deformed, and thus preventing it from affecting subsequent character image recognition. Then, the drive motor 5 is started to rotate one of the drive shafts 8. Due to the existence of the chain drive structure 9, each drive shaft 8 can rotate synchronously, so each drive roller 7 can rotate synchronously and straighten the figure-eight optical cable 36, restoring the characters on it to the standard order, thereby improving the recognition accuracy, and preventing the generation of highlights or shadows, preventing partial missing characters, and facilitating the recognition operation.

[0039] Before straightening, cleaning water is injected into the spray plate 33 through the water inlet pipe 13. Due to the presence of the diversion cavity 35, the cleaning water can be sprayed out through the spray hole 34. Since the shape of the spray plate 33 is similar to the top shape of the figure-eight optical cable 36, the top of the figure-eight optical cable 36 can be sprayed and cleaned. After cleaning, the water stains on the outer surface of the figure-eight optical cable 36 can be scraped off through the figure-eight hole 16. Therefore, the dust on the figure-eight optical cable 36 can be prevented from affecting subsequent identification, and the accuracy of identification can be further guaranteed.

[0040] After straightening, the characters on the figure-eight optical cable 36 are identified by the visual recognition device 21. When the recognition position needs to be changed, the second motor 25 is started to rotate the threaded rod 23. The threaded effect of the threaded rod 23 causes the moving block 24 to move back and forth. Therefore, the position of the visual recognition device 21 can be changed as needed to identify the characters at different positions on the figure-eight optical cable 36, thereby improving the flexibility and applicability of the recognition device.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A smart identification device based on DVS optical cable, comprising a device housing (1), characterized in that: The outer casing (1) of the device is provided with a conveying and straightening mechanism, a cleaning mechanism and an image recognition mechanism; The conveying and straightening mechanism includes a fixed upright plate (6) fixedly connected to the bottom of the inner wall of the device housing (1). There are four fixed upright plates (6). Two first vertical plates (10) are fixedly connected to the top of the four fixed upright plates (6). Multiple drive shafts (8) are rotatably connected between the two first vertical plates (10). A drive roller (7) is fixedly connected to the outer wall of each drive shaft (8). The mechanism also includes electric push rods (12) symmetrically fixedly connected to both sides of the top of the device housing (1). A U-shaped frame (2) is fixedly connected to the telescopic end of each of the two electric push rods (12). Two second vertical plates (20) are fixedly connected to both sides of the bottom end of the two U-shaped frames (2). Multiple driven shafts (31) are rotatably connected between the two second vertical plates (20). A squeezing roller (4) is fixedly connected to the outer wall of each driven shaft (31). Each squeezing roller (4) and each drive roller (7) are used to clamp the figure-eight optical cable (36) and straighten the figure-eight optical cable (36) to facilitate character recognition by the image recognition mechanism.

2. The intelligent identification device based on DVS optical cable according to claim 1, characterized in that: One end of the first vertical plate (10) on one side is fixedly connected to a drive motor (5). The drive end of the drive motor (5) is fixedly connected to one of the drive shafts (8). The multiple drive shafts (8) are connected to each other through a chain transmission structure (9). The top ends of the two U-shaped frames (2) are symmetrically fixedly connected to guide columns (11). The two sets of guide columns (11) penetrate the outer shell (1) of the device.

3. The intelligent identification device based on DVS optical cable according to claim 1, characterized in that: A second horizontal plate (29) is fixedly connected to one end of the second vertical plate (20) on one side. A circular column (28) slides through the second horizontal plate (29). A pressure sensor (27) is fixedly connected to the bottom end of the circular column (28). A circular plate (19) is fixedly connected to the top end of the circular column (28). A tension spring (30) is fixedly connected to the bottom end of the circular plate (19) corresponding to the outer side of the circular column (28). The tension spring (30) is fixedly connected to the second horizontal plate (29).

4. The intelligent identification device based on DVS optical cable according to claim 3, characterized in that: One end of the first vertical plate (10) on one side is fixedly connected to a first horizontal plate (26) corresponding to one side of the drive motor (5), and the first horizontal plate (26) is located directly below the pressure sensor (27).

5. The intelligent identification device based on DVS optical cable according to claim 1, characterized in that: The cleaning mechanism includes a cleaning plate (15) fixedly connected to the inner wall of the outer shell (1) of the device. The cleaning plate (15) is provided with a figure-eight hole (16). The inner wall of the figure-eight hole (16) is connected to a cleaning cavity (14). A guide block (18) is fixedly connected to the inner wall of the cleaning cavity (14) below the figure-eight hole (16).

6. The intelligent identification device based on DVS optical cable according to claim 5, characterized in that: Two sets of fixed columns (32) are fixedly connected above the figure-eight hole (16) on the inner wall of the cleaning cavity (14). A spray plate (33) is fixedly connected between the two sets of fixed columns (32). A diversion cavity (35) is provided inside the spray plate (33). Multiple spray holes (34) are provided at the bottom of the diversion cavity (35).

7. The intelligent identification device based on DVS optical cable according to claim 6, characterized in that: Both sides of the top of the spray plate (33) are fixedly connected to water inlet pipes (13), and both water inlet pipes (13) penetrate the cleaning plate (15). The bottom of the cleaning plate (15) is fixedly connected to a water outlet pipe (17).

8. The intelligent identification device based on DVS optical cable according to claim 1, characterized in that: The image recognition mechanism includes a square column (3) fixedly connected to the other side of the inner wall of the device housing (1). The bottom end of the square column (3) is provided with a sliding groove (22). A second motor (25) is fixedly connected to one side of the inner wall of the sliding groove (22). A threaded rod (23) is fixedly connected to the driving end of the second motor (25). The other end of the threaded rod (23) is rotatably connected to the sliding groove (22). A moving block (24) that slides on the inner wall of the sliding groove (22) is threadedly connected to the outer wall of the threaded rod (23). A visual recognition device (21) is fixedly connected to the bottom end of the moving block (24).

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