Intelligent track state monitoring device based on optical fiber sensing

Abstract

A track state intelligent monitoring device based on optical fiber sensing comprises a sleeper used for installing a track, and further comprises a settlement sensor, an image collecting assembly, a displacement signal collecting assembly, a high-definition CCD camera, a processing computer and an alarm. An image acquisition assembly for acquiring image information is mounted on one side of the track, a displacement signal acquisition assembly is mounted on one side of the image acquisition assembly, a high-definition CCD camera is mounted at the top end of the image acquisition assembly, and the settlement sensor, the high-definition CCD camera and the displacement signal acquisition assembly are electrically connected with a processing computer. The output end of the processing computer is connected with an alarm; the device is novel in structure and ingenious in conception, settlement signals, deformation signals and crack signals of the track can be conveniently monitored in real time, an alarm can be given out in time to remind maintenance personnel to carry out maintenance in time when a safety value is exceeded, and replacement operation of the displacement sensor is facilitated.

Description

Technical Field

[0001] The invention relates to a measuring device, in particular to an intelligent track state monitoring device based on optical fiber sensing. Background Art

[0002] With the vigorous development of rail transit, its safety issues have also attracted much attention. Safety is the lifeline and eternal theme of the rail transit transportation industry. In addition to considering the safety of the technical system, the operational safety of the rail transit system is also determined by its operating characteristics, which are mainly manifested in its dynamic nature, suddenness, severity of accident consequences, and being greatly affected by the external environment and difficult to predict and control. Since the rail transit system is a means of transportation with large passenger flow, once a safety accident occurs, it will not only cause loss of life and property, but also easily cause mass harm, thus becoming the focus of social and even international attention, and its political, social and international influence is huge.

[0003] Therefore, strengthening the safety of rail transit operations has become a challenge that my country, governments of various countries, and related companies urgently need to address.

[0004] At present, track safety inspection still needs manual regular inspection and maintenance, which is labor-intensive, has low inspection efficiency, and cannot monitor various information of the track in real time. In this way, faults may occur during the inspection gap, which may lead to train suspension and greater safety hazards, which is not conducive to use. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an intelligent track status monitoring device based on optical fiber sensing, which effectively solves the problem that the current track safety inspection still requires manual regular inspection and maintenance, which has high labor intensity, low inspection efficiency, and cannot monitor various information of the track in real time. In this way, faults may occur in the inspection gap, which may lead to train suspension and greater safety hazards, which is not conducive to use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the present invention includes a rail sleeper for installing a track, and also includes a settlement sensor, an image acquisition component, a displacement signal acquisition component, a high-definition CCD camera, a processing computer and an alarm, wherein a settlement sensor is installed at the bottom of the track, an image acquisition component for collecting image information is installed on one side of the track, a displacement signal acquisition component is installed on one side of the image acquisition component, a high-definition CCD camera is installed on the top of the image acquisition component, the settlement sensor, the high-definition CCD camera and the displacement signal acquisition component are all electrically connected to the processing computer, and the output end of the processing computer is connected to the alarm;

[0007] The image acquisition component includes a shell, a screw rod, a guide column, a first drive motor, a lifting block, a wire hole, a guide hole, a vertical plate and a rotating component. The shell is fixed to one side of the track, a screw rod is installed in the middle of the inner side of the shell, guide columns are symmetrically fixed on both sides of the screw rod, the first drive motor is installed at one end of the screw rod, a lifting block is installed on the screw rod and the guide column, a wire hole is opened at the lifting block corresponding to the position of the screw rod, a vertical plate is fixed on one side of the lifting block, and a rotating component is installed on the top of the vertical plate.

[0008] Preferably, a guide hole is provided on the lifting block at a position corresponding to the guide column.

[0009] Preferably, the rotating assembly includes a second drive motor, a rotating shaft, a bearing, a mounting plate and a first mounting hole. The second drive motor is embedded and mounted inside the vertical plate. The output shaft of the second drive motor is connected to the rotating shaft. A mounting plate is fixed to the top end of the rotating shaft. A plurality of first mounting holes are formed on the mounting plate.

[0010] Preferably, the rotating shaft is connected to the vertical plate via a bearing.

[0011] Preferably, the displacement signal acquisition component includes a support plate, a height adjustment component, a circular protective shell, a turntable, a disk shaft, a displacement sensor, a detection port and a third drive motor, the bottom end of the support plate is provided with a height adjustment component fixed on the track base, the top end of the support plate is provided with a circular protective shell, a turntable is installed inside the circular protective shell, a disk shaft connected to the circular protective shell through a bearing is provided in the middle of the turntable, a number of displacement sensors are installed at the edge of the turntable, and the top end of the disk shaft is connected to the third drive motor fixed on the circular protective shell.

[0012] Preferably, the circular protective shell is provided with a detection port on one side of the track.

[0013] Preferably, the height adjustment assembly includes a base, a screw, a mounting seat, a nut, a through hole and a second mounting hole. The base is fixed to the bottom end of the support plate. The base is fixed to the mounting seat by a screw. The screw is located on the upper and lower sides of the base and nuts are screwed on. Through holes are opened on the base and the mounting seat corresponding to the screw positions.

[0014] Preferably, a plurality of second mounting holes are formed on the mounting seat, and the mounting seat is mounted on the track base by bolts.

[0015] Beneficial effects: When the present invention is used, the settlement signal of the track is collected by the installed settlement sensor, and the collected signal is transmitted to the processing computer, and the collected settlement signal is processed by the processing computer. If the settlement amount is not within the safety value preset by the processing computer, the output end of the processing computer will issue a command to the alarm to alarm, reminding the maintenance personnel to perform repairs in time, and the image signal of the track is collected by the installed high-definition CCD camera, and the collected image signal is transmitted to the processing computer, and the image information of the track is processed by the processing computer. If deformation or cracks are found in the track, the output end of the processing computer will issue a command to the alarm to alarm, reminding the maintenance personnel to perform repairs in time, and the displacement signal of the track is collected by the installed displacement sensor, and the collected displacement signal is transmitted to the processing computer, and the collected displacement signal is processed by the processing computer. If the displacement signal is not within the appropriate value preset in the processing computer, the output end of the processing computer will issue a command to the alarm, and the alarm is issued through the alarm to remind the maintenance personnel to perform repairs in time. When the machine collects image signals, the first drive motor works, and the first drive motor drives the screw rod to rotate. The rotation of the screw rod cooperates with the wire hole opened on the lifting block, so that the lifting block moves on the screw rod. The movement of the lifting block drives the vertical plate and the high-definition CCD camera installed thereon to move, so that the high-definition CCD camera can collect a wider range of image signals. At the same time, during the collection, the second drive motor works, and the second drive motor drives the shaft to rotate. The rotation of the shaft drives the mounting plate to rotate. The rotation of the mounting plate can drive the high-definition CCD camera installed thereon to rotate, so that the track at different positions can be imaged. The applicability is strong. When the displacement sensor fails, the third drive motor works, and the third drive motor drives the disk shaft to rotate. The rotation of the disk shaft drives the turntable to rotate. The rotation of the turntable can turn the unused displacement sensor to the detection port, without the need for on-site replacement by the operator. The operation is simple and convenient. When it is necessary to adjust the detection height of the displacement sensor, the position of the nut on the screw is rotated, and the base is fixed at different height positions of the screw through the nut, so as to achieve the purpose of adjusting the detection height of the displacement sensor. The present invention has a novel structure and an ingenious conception, and is convenient for real-time monitoring of the settlement signal, deformation signal and crack signal of the track. When the safety value is exceeded, an alarm will be issued in time to remind maintenance personnel to carry out timely maintenance, and the replacement operation of the displacement sensor is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2It is a schematic diagram of the three-dimensional structure of the shell of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting block of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0021] Figure 5 is a top view of the displacement signal acquisition component of the present invention;

[0022] Figure 6 is a side view of the displacement signal acquisition component of the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the turntable of the present invention;

[0024] Numbers in the figure: 1. sleeper; 2. track; 3. settlement sensor; 4. image acquisition component; 5. displacement signal acquisition component; 6. high-definition CCD camera; 7. processing computer; 8. alarm; 9. shell; 10. screw rod; 11. guide column; 12. first drive motor; 13. lifting block; 14. thread hole; 15. guide hole; 16. vertical plate; 17. rotating component; 18. second drive motor; 19. rotating shaft; 20. bearing; 21. mounting plate; 22. first mounting hole; 23. support plate; 24. height adjustment component; 25. circular protective shell; 26. turntable; 27. disk shaft; 28. displacement sensor; 29. ​​detection port; 30. third drive motor; 31. base; 32. screw rod; 33. mounting seat; 34. nut; 35. through hole; 36. second mounting hole. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-7 The specific implementation modes of the present invention are described in further detail.

[0026] Embodiment 1, by Figure 1-7 The present invention provides an intelligent monitoring device for track status based on optical fiber sensing, comprising a sleeper 1 for installing a track 2, and also comprising a settlement sensor 3, an image acquisition component 4, a displacement signal acquisition component 5, a high-definition CCD camera 6, a processing computer 7 and an alarm 8. The settlement sensor 3 is installed at the bottom of the track 2, an image acquisition component 4 for collecting image information is installed on one side of the track 2, a displacement signal acquisition component 5 is installed on one side of the image acquisition component 4, a high-definition CCD camera 6 is installed on the top of the image acquisition component 4, the settlement sensor 3, the high-definition CCD camera 6 and the displacement signal acquisition component 5 are all electrically connected to the processing computer 7, and the output end of the processing computer 7 is connected to the alarm 8;

[0027] The image acquisition component 4 includes a shell 9, a screw rod 10, a guide column 11, a first drive motor 12, a lifting block 13, a wire hole 14, a guide hole 15, a vertical plate 16 and a rotating component 17. The shell 9 is fixed to one side of the track 2. The screw rod 10 is installed in the middle of the inner side of the shell 9. The guide columns 11 are symmetrically fixed on both sides of the screw rod 10. The first drive motor 12 is installed at one end of the screw rod 10. The lifting block 13 is installed on the screw rod 10 and the guide column 11. The lifting block 13 is provided with a wire hole 14 at the position corresponding to the screw rod 10. A vertical plate 16 is fixed on one side of the lifting block 13, and a rotating component 17 is installed on the top of the vertical plate 16.

[0028] A guide hole 15 is provided at a position of the lifting block 13 corresponding to the guide column 11 to improve the lifting stability of the lifting block 13 .

[0029] The rotating assembly 17 includes a second drive motor 18, a rotating shaft 19, a bearing 20, a mounting plate 21 and a first mounting hole 22. The second drive motor 18 is embedded and installed inside the vertical plate 16. The output shaft of the second drive motor 18 is connected to the rotating shaft 19. A mounting plate 21 is fixed to the top of the rotating shaft 19. A plurality of first mounting holes 22 are provided on the mounting plate 21. When in use, the second drive motor 18 works, and the second drive motor 18 drives the rotating shaft 19 to rotate. The rotation of the rotating shaft 19 drives the mounting plate 21 to rotate. The rotation of the mounting plate 21 can drive the high-definition CCD camera 6 installed thereon to rotate, so that it can be adjusted and used according to needs.

[0030] The rotating shaft 19 is connected to the vertical plate 16 through a bearing 20, which facilitates the installation and use of the rotating shaft 19.

[0031] The displacement signal acquisition component 5 includes a support plate 23, a height adjustment component 24, a circular protective shell 25, a turntable 26, a disk shaft 27, a displacement sensor 28, a detection port 29 and a third drive motor 30. The bottom end of the support plate 23 is provided with a height adjustment component 24 fixed on the base of the track 2, and the top end of the support plate 23 is provided with a circular protective shell 25. A turntable 26 is installed inside the circular protective shell 25. A disk shaft 27 connected to the circular protective shell 25 through a bearing is provided in the middle of the turntable 26. Several displacement sensors 28 are installed at the edge of the turntable 26. The top end of the disk shaft 27 is connected to the third drive motor 30 fixed on the circular protective shell 25. When in use, the displacement signal of the track is collected by the installed displacement sensor 28, and the collected displacement signal is transmitted to the processing computer 7. The collected displacement signal is processed by the processing computer 7. If the displacement signal is not within the appropriate value preset in the processing computer 7, the output end of the processing computer 7 will send a command to the alarm 8, and an alarm will be sounded through the alarm 8 to remind the maintenance personnel to perform maintenance in time.

[0032] A detection port 29 is provided on one side of the circular protective shell 25 located on the track 2 to facilitate signal collection by the displacement sensor 28 .

[0033] The height adjustment assembly 24 includes a base 31, a screw 32, a mounting seat 33, a nut 34, a through hole 35 and a second mounting hole 36. The base 31 is fixed to the bottom end of the support plate 23. The base 31 is fixed with the mounting seat 33 through the screw 32. The screw 32 is located on the upper and lower sides of the base 31 and is screwed with nuts 34. The base 31 and the mounting seat 33 are provided with through holes 35 at positions corresponding to the screw 32. When it is necessary to adjust the detection height of the displacement sensor 28, the position of the nut 34 on the screw 32 is rotated, and the base 31 is fixed at different height positions of the screw 32 through the nut 34, so as to achieve the purpose of adjusting the detection height of the displacement sensor 28.

[0034] A plurality of second mounting holes 36 are formed on the mounting seat 33 , and the mounting seat 33 is mounted on the base of the track 2 by means of bolts, so as to facilitate the installation and use of the mounting seat 33 .

[0035] Working principle: When the present invention is used, the settlement signal of the track 2 is collected by the installed settlement sensor, and the collected signal is transmitted to the processing computer 7, and the collected settlement signal is processed by the processing computer 7. If the settlement amount is not within the safety value preset by the processing computer 7, the output end of the processing computer 7 will issue a command to the alarm 8 to alarm, reminding the maintenance personnel to perform maintenance in time, and the image signal of the track 2 is collected by the installed high-definition CCD camera 6, and the collected image signal is transmitted to the processing computer 7, and the image information of the track is processed by the processing computer 7. If deformation or cracks are found in the track, the output end of the processing computer 7 will issue a command to the alarm 8 to alarm, reminding the maintenance personnel to perform maintenance in time, and the displacement signal of the track is collected by the installed displacement sensor 28, and the collected displacement signal is transmitted to the processing computer 7, and the collected displacement signal is processed by the processing computer 7. If the displacement signal is not within the appropriate value preset in the processing computer 7, the output end of the processing computer 7 will issue a command to the alarm 8, and the alarm 8 will alarm, reminding the maintenance personnel to perform maintenance in time. When the high-definition CCD camera 6 collects the image signal, the first drive motor 12 works, and the first drive The driving motor 12 drives the screw rod 10 to rotate. The rotation of the screw rod 10 cooperates with the thread hole 14 opened on the lifting block 13, so that the lifting block 13 moves on the screw rod 10. The movement of the lifting block 13 drives the vertical plate 16 and the high-definition CCD camera 6 installed thereon to move, so that the high-definition CCD camera 6 can collect a wider range of image signals. At the same time, during the collection, the second driving motor 18 works, and the second driving motor 18 drives the rotating shaft 19 to rotate. The rotation of the rotating shaft 19 drives the mounting plate 21 to rotate. The rotation of the mounting plate 21 can drive the high-definition CCD camera 6 installed thereon to rotate, so that the tracks at different positions can be imaged. The image acquisition is carried out with strong applicability. When the displacement sensor 28 fails, the third drive motor 30 works, and the third drive motor 30 drives the disk shaft 27 to rotate. The rotation of the disk shaft 27 drives the turntable 26 to rotate. The turntable 26 rotates to turn the unused displacement sensor 28 to the detection port 29. There is no need for operators to replace it on site. The operation is simple and convenient. When it is necessary to adjust the detection height of the displacement sensor 28, the position of the rotating nut 34 on the screw rod 32 is fixed by the nut 34 at different height positions of the screw rod 32, so as to achieve the purpose of adjusting the detection height of the displacement sensor 28.

[0036] Beneficial effects: The present invention has a novel structure and an ingenious conception, and is convenient for real-time monitoring of the settlement signal, deformation signal and crack signal of the track 2. When the safety value is exceeded, an alarm will be issued in time to remind maintenance personnel to carry out timely maintenance, and the replacement operation of the displacement sensor 28 is convenient.

[0037] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent track state monitoring device based on optical fiber sensing, comprising a sleeper (1) for mounting a track (2), characterized in that: It also comprises a settlement sensor (3), an image acquisition component (4), a displacement signal acquisition component (5), a high-definition CCD camera (6), a processing computer (7) and an alarm (8), wherein the settlement sensor (3) is installed at the bottom of the track (2), an image acquisition component (4) for acquiring image information is installed on one side of the track (2), a displacement signal acquisition component (5) is installed on one side of the image acquisition component (4), a high-definition CCD camera (6) is installed on the top of the image acquisition component (4), the settlement sensor (3), the high-definition CCD camera (6) and the displacement signal acquisition component (5) are all electrically connected to the processing computer (7), and the output end of the processing computer (7) is connected to the alarm (8); The image acquisition assembly (4) comprises a housing (9), a screw rod (10), a guide column (11), a first drive motor (12), a lifting block (13), a thread hole (14), a guide hole (15), a vertical plate (16) and a rotating assembly (17). The housing (9) is fixed to one side of the track (2). A screw rod (10) is installed in the middle of the inner side of the housing (9). Guide columns (11) are symmetrically fixed on both sides of the screw rod (10). The first drive motor (12) is installed at one end of the screw rod (10). The lifting block (13) is installed on the screw rod (10) and the guide column (11). The lifting block (13) is provided with a thread hole (14) at a position corresponding to the screw rod (10). A vertical plate (16) is fixed to one side of the lifting block (13). The rotating assembly (17) is installed at the top of the vertical plate (16).

2. The intelligent track status monitoring device based on optical fiber sensing according to claim 1 is characterized in that: The lifting block (13) is provided with a guide hole (15) at a position corresponding to the guide column (11).

3. The intelligent track status monitoring device based on optical fiber sensing according to claim 1 is characterized in that: The rotating assembly (17) comprises a second drive motor (18), a rotating shaft (19), a bearing (20), a mounting plate (21) and a first mounting hole (22); the second drive motor (18) is embedded and mounted inside the vertical plate (16); the output shaft of the second drive motor (18) is connected to the rotating shaft (19); the top end of the rotating shaft (19) is fixed with a mounting plate (21); and a plurality of first mounting holes (22) are formed on the mounting plate (21).

4. The intelligent track status monitoring device based on optical fiber sensing according to claim 3 is characterized in that: The rotating shaft (19) is connected to the vertical plate (16) via a bearing (20).

5. The intelligent track status monitoring device based on optical fiber sensing according to claim 1 is characterized in that: The displacement signal acquisition component (5) comprises a support plate (23), a height adjustment component (24), a circular protective shell (25), a turntable (26), a disk shaft (27), a displacement sensor (28), a detection port (29) and a third drive motor (30); the bottom end of the support plate (23) is provided with a height adjustment component (24) fixed on a base of the track (2); the top end of the support plate (23) is provided with a circular protective shell (25); a turntable (26) is installed inside the circular protective shell (25); a disk shaft (27) connected to the circular protective shell (25) via a bearing is provided in the middle of the turntable (26); a plurality of displacement sensors (28) are installed at the edge of the turntable (26); and the top end of the disk shaft (27) is connected to the third drive motor (30) fixed on the circular protective shell (25).

6. The intelligent track status monitoring device based on optical fiber sensing according to claim 5 is characterized in that: The circular protective shell (25) is provided with a detection opening (29) on one side of the track (2).

7. The intelligent track status monitoring device based on optical fiber sensing according to claim 5 is characterized in that: The height adjustment assembly (24) comprises a base (31), a screw rod (32), a mounting seat (33), a nut (34), a through hole (35) and a second mounting hole (36); the base (31) is fixed to the bottom end of the support plate (23); the mounting seat (33) is fixed to the base (31) via the screw rod (32); nuts (34) are screwed to the upper and lower sides of the screw rod (32) located at the base (31); and through holes (35) are provided on the base (31) and the mounting seat (33) at positions corresponding to the screw rod (32).

8. The intelligent track status monitoring device based on optical fiber sensing according to claim 7 is characterized in that: The mounting seat (33) is provided with a plurality of second mounting holes (36), and the mounting seat (33) is mounted on the base of the track (2) by means of bolts.

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