Train axle intelligent monitoring and early warning system based on fiber bragg grating

Abstract

A train axle intelligent monitoring and early warning system based on fiber bragg gratings comprises a signal acquisition module, a signal processing module, a signal output module and a visual early warning display terminal, the signal acquisition module is electrically connected with the signal processing module, the signal processing module is electrically connected with the signal output module, and the visual early warning display terminal is electrically connected with the signal output module. The signal output module is electrically connected with a visual early warning display terminal; the signal acquisition module is a plurality of groups of sensor detection module boxes mounted inside and outside a rail and is used for acquiring temperature, stress, vibration and offset signals of a train axle when the train rail passes through; the signal processing module adopts a high-speed processor chip to provide accurate real-time temperature, stress, vibration and offset signal data, the structure is novel, the conception is ingenious, the real-time temperature, stress, vibration and offset signals of the train wheel can be conveniently collected and displayed, the temperature, stress, vibration and offset signals of the train wheel axle can be displayed and early warned, and the real-time monitoring of the train wheel axle can be realized. The use is facilitated.

Description

Technical Field

[0001] The invention relates to a monitoring and early warning system, in particular to an intelligent monitoring and early warning system for train axles based on optical fiber gratings. Background Art

[0002] Wheels are important components of the running gear of railway vehicles. Wheel failures often lead to serious safety accidents and cause heavy losses to railway transportation. Wheel failures are not only a safety hazard in transportation, but also cause great damage to the railway's fixed facilities and the vehicle structure itself. Wheel failures lead to a decline in vehicle operation quality and affect driving safety. For this reason, a large amount of manpower has been invested in railway safety work to detect train vehicle failures, but the current detection methods in the application process are still mainly manual, requiring a large number of train inspection personnel to do heavy work, with low detection accuracy, low efficiency, and lack of detection items. There are still considerable hidden dangers in monitoring the technical status of train wheels. There are also some structures that collect data by installing sensors, but the height adjustment of the sensors of this structure is inconvenient and cannot be adjusted well according to needs. At the same time, when the sensor is damaged, it is inconvenient to replace the sensor and the machine needs to be shut down for operation, which is very inconvenient and not conducive to use. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a train axle intelligent monitoring and early warning system based on fiber grating, which effectively solves the problem that the detection means in the current application process are still mainly manual, requiring a large number of train inspection personnel to do heavy work, with low detection accuracy, low efficiency, and lack of detection items. There are still considerable hidden dangers in the monitoring of the technical status of train wheels. There are also some structures that collect data by installing sensors, but the height of the sensors of this structure is inconvenient to adjust and cannot be adjusted well according to needs. At the same time, when the sensor is damaged, it is inconvenient to replace the sensor and the machine needs to be shut down for operation, which is very inconvenient and not conducive to use.

[0004] To achieve the above object, the present invention provides the following technical solution: the present invention includes a signal acquisition module, a signal processing module, a signal output module and a visual early warning display terminal, the signal acquisition module is electrically connected to the signal processing module, the signal processing module is electrically connected to the signal output module, and the signal output module is electrically connected to the visual early warning display terminal;

[0005] Signal acquisition module: It is a multi-group sensor detection module box installed inside and outside the rail, used to collect the temperature, stress, vibration and offset signals of the train axle when the train rail passes;

[0006] Signal processing module: It uses a high-speed processor chip to provide accurate real-time temperature, stress, vibration and offset signal data. The built-in software of the high-speed processor chip generates a 3D temperature thermal imaging model for the train axle, brake disc and wheel area scanned by infrared rays;

[0007] Signal output module: used to transmit and output the signal processed by the signal processing module;

[0008] Visual warning display terminal: receives various processed signals transmitted by the signal output module, and displays the signals as warnings for users to perform warning operations.

[0009] Preferably, the sensor detection module box is equipped with an infrared temperature sensor for detecting temperature, a stress sensor for collecting stress, a vibration sensor for collecting vibration signals, and an offset sensor for collecting train wheel axle signals.

[0010] Preferably, the signal output of the signal output module is output via optical fiber.

[0011] Preferably, the visual warning display terminal can adopt a visual intelligent video analysis software platform, a train terminal or a user handheld terminal.

[0012] A train axle intelligent monitoring and early warning device based on fiber grating includes a sleeper, a track, a train axle, a train wheel, a brake pad, a detection mechanism, a signal processing module and a visual early warning display terminal, wherein two tracks are symmetrically installed on the top of the sleeper, a train axle is arranged on the track, a train wheel engaged on the track is arranged on the train axle, a brake pad is arranged on the inner side of the train axle, a plurality of detection mechanisms are installed inside and outside the track of the sleeper, the detection mechanism is connected to the signal processing module through optical fiber, and the signal processing module is connected to the visual early warning display terminal through optical fiber;

[0013] The detection mechanism 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 collection component. The shell is fixed on the sleeper, a screw rod is installed in the middle of the shell, guide columns are symmetrically fixed on both sides of the screw rod, a first drive motor for providing power 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 position of the lifting block corresponding to the screw rod, a vertical plate, and a collection component is installed in the middle of the top of the vertical plate.

[0014] Preferably, a guide hole is provided on the lifting block at a position corresponding to the guide column.

[0015] Preferably, the collection component includes a protective cover, a mounting plate, fixing bolts, sensors, a rotating shaft and a second driving motor. The protective cover is fixed to the top of the vertical plate, and a mounting plate is rotatably installed inside the protective cover. Several sensors are installed on the edge of the mounting plate through fixing bolts, and a rotating shaft connected to the protective cover through a bearing is provided in the middle of the mounting plate.

[0016] Preferably, one end of the rotating shaft is connected to a second driving motor mounted on the protective cover.

[0017] Beneficial effect: When the present invention is used, the temperature, stress, vibration and offset signals of the train axle are collected through the installed sensors, and the collected signals are transmitted to the signal processing module. The signal processing module adopts a high-speed processor chip to provide accurate and real-time temperature, stress, vibration and offset signal data. The built-in software of the high-speed processor chip generates a 3D temperature thermal imaging model for the train axle, brake disc and wheel area scanned by infrared rays, and then transmits the processed signal to the visual early warning display terminal. The visual early warning display terminal displays the temperature, stress, vibration and offset signals of the train axle for early warning. When it is necessary to adjust the height of the sensor, the first drive motor Working, the first drive motor works to drive the screw rod to rotate, and the screw rod rotates and cooperates with the wire hole opened on the lifting block, so that the lifting block moves on the screw rod, and the movement of the lifting block drives the vertical plate and the collection component to move, that is, the purpose of adjusting the height of the sensor is achieved, which is convenient for adjustment according to needs and has strong applicability. The installed sensors can be the same sensors. In this way, when the sensor is damaged, the second drive motor works, and the second drive motor works to drive the rotating shaft to rotate, and the rotation of the rotating shaft drives the installation disk to rotate. The installation disk rotates to turn the corresponding undamaged sensor to the top. The operation is simple and convenient, and there is no need for operators to go to the site for operation, and the train operation can be operated without stopping. The present invention has a novel structure and a clever conception. It is convenient to collect and display the real-time temperature, stress, vibration and offset signals of the train wheels, and to display and warn the temperature, stress, vibration and offset signals of the train axles, which is conducive to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 It is a schematic diagram of the overall process structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of the device of the present invention;

[0021] Figure 3 It is a schematic diagram of the shell structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the acquisition component of the present invention;

[0023] Figure 5 It is a schematic diagram of the internal structure of the acquisition component of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting block of the present invention;

[0025] Numbers in the figure: 1. sleeper; 2. track; 3. train axle; 4. train wheel; 5. brake pad; 6. detection mechanism; 7. signal processing module; 8. visual warning display terminal; 9. housing; 10. screw rod; 11. guide column; 12. first drive motor; 13. lifting block; 14. screw hole; 15. guide hole; 16. vertical plate; 17. acquisition component; 18. protective cover; 19. mounting plate; 20. fixing bolt; 21. sensor; 22. rotating shaft; 23. second drive motor. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-6 The specific implementation modes of the present invention are described in further detail.

[0027] Embodiment 1, by Figure 1-6 The present invention provides a train axle intelligent monitoring and early warning system based on fiber grating, comprising a signal acquisition module, a signal processing module, a signal output module and a visual early warning display terminal, wherein the signal acquisition module is electrically connected to the signal processing module, the signal processing module is electrically connected to the signal output module, and the signal output module is electrically connected to the visual early warning display terminal;

[0028] Signal acquisition module: It is a multi-group sensor detection module box installed inside and outside the rail, used to collect the temperature, stress, vibration and offset signals of the train axle when the train rail passes;

[0029] Signal processing module: It uses a high-speed processor chip to provide accurate real-time temperature, stress, vibration and offset signal data. The built-in software of the high-speed processor chip generates a 3D temperature thermal imaging model for the train axle, brake disc and wheel area scanned by infrared rays;

[0030] Signal output module: used to transmit and output the signal processed by the signal processing module;

[0031] Visual warning display terminal: receives various processed signals transmitted by the signal output module, and displays the signals as warnings for users to perform warning operations.

[0032] The sensor detection module box is equipped with an infrared temperature sensor for detecting temperature, a stress sensor for collecting stress, a vibration sensor for collecting vibration signals, and an offset sensor for collecting train axle cheap signals, which facilitates the collection and use of signals.

[0033] The signal output of the signal output module uses optical fiber for output, which is convenient for signal transmission.

[0034] The visual warning display terminal can adopt a visual intelligent video analysis software platform, a train terminal or a user's handheld terminal to facilitate the display of warnings for processed signals.

[0035] A train axle intelligent monitoring and early warning device based on fiber grating includes a sleeper 1, a track 2, a train axle 3, a train wheel 4, a brake pad 5, a detection mechanism 6, a signal processing module 7 and a visual early warning display terminal 8. Two tracks 2 are symmetrically installed on the top of the sleeper 1, a train axle 3 is arranged on the track 2, a train axle 3 is arranged on the train axle 3, a train wheel 4 engaged on the track 2 is arranged, a brake pad 5 is arranged on the inner side of the train axle 3, a plurality of detection mechanisms 6 are installed inside and outside the track of the sleeper 1, the detection mechanism 6 is connected to the signal processing module 7 through optical fiber, and the signal processing module 7 is connected to the visual early warning display terminal 8 through optical fiber;

[0036] The detection mechanism 6 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 collection component 17. The shell 9 is fixed on the sleeper 1, and a screw rod 10 is installed in the middle of the shell 9. Guide columns 11 are symmetrically fixed on both sides of the screw rod 10. A first drive motor 12 for providing power is installed at one end of the screw rod 10. A 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, and a collection component 17 is installed in the middle of the top of the vertical plate 16.

[0037] 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 .

[0038] The collection component 17 includes a protective cover 18, a mounting plate 19, a fixing bolt 20, a sensor 21, a rotating shaft 22 and a second drive motor 23. The protective cover 18 is fixed to the top of the vertical plate 16. The mounting plate 19 is rotatably installed inside the protective cover 18. Several sensors 21 are installed at the edge of the mounting plate 19 through the fixing bolts 20. A rotating shaft 22 connected to the protective cover 18 through a bearing is provided in the middle of the mounting plate 19. When in use, the temperature, stress, vibration and offset signals of the axle 3 of the train wheel are collected through the installed sensors 21. The installed sensors 21 can be the same sensors. In this way, when the sensor is damaged, the second drive motor 23 works, and the second drive motor 23 works to drive the rotating shaft 22 to rotate. The rotation of the rotating shaft 22 drives the mounting plate 19 to rotate. The mounting plate 19 rotates to turn the corresponding undamaged sensor 21 to the top. The operation is simple and convenient, and there is no need for operators to go to the site for operation, and the train operation can be operated without stopping.

[0039] One end of the rotating shaft 22 is connected to a second driving motor 23 mounted on the protective cover 18 for easy transmission.

[0040] Working principle: When the present invention is used, the temperature, stress, vibration and offset signals of the train axle are collected through the installed sensor 21, and the collected signals are transmitted to the signal processing module 7. The signal processing module 7 adopts a high-speed processor chip to provide accurate real-time temperature, stress, vibration and offset signal data. The built-in software of the high-speed processor chip generates a 3D temperature thermal imaging model for the train axle, brake disc and wheel area scanned by infrared rays, and then transmits the processed signal to the visual warning display terminal 8. The visual warning display terminal 8 displays the temperature, stress, vibration and offset signals of the train axle for warning. When it is necessary to adjust the height of the sensor 21, the first drive motor 12 works, and the first drive motor 12 works with The movable screw rod 10 rotates, and the screw rod 10 rotates and cooperates with the wire hole 14 opened on the lifting block 13, so that the lifting block 13 moves on the screw rod 10, and the movement of the lifting block 13 drives the vertical plate 16 and the collection component 17 to move, that is, the purpose of adjusting the height of the sensor 21 is achieved, which is convenient for adjustment according to needs and has strong applicability. The installed sensors 21 can be the same sensor. In this way, when the sensor is damaged, the second drive motor 23 works, and the second drive motor 23 drives the rotating shaft 22 to rotate. The rotation of the rotating shaft 22 drives the installation disk 19 to rotate, and the installation disk 19 rotates to turn the corresponding undamaged sensor 21 to the top. The operation is simple and convenient, and there is no need for operators to go to the site for operation, and the train operation can be operated without stopping.

[0041] Beneficial effects: The present invention has a novel structure and an ingenious conception, and is convenient for collecting and displaying real-time temperature, stress, vibration and offset signals of train wheels, and for displaying and warning temperature, stress, vibration and offset signals of train wheel axles, which is convenient for use.

[0042] 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.

[0043] 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. A train axle intelligent monitoring and early warning system based on fiber grating, comprising a signal acquisition module, a signal processing module, a signal output module and a visual early warning display terminal, characterized in that: The signal acquisition module is electrically connected to the signal processing module, the signal processing module is electrically connected to the signal output module, and the signal output module is electrically connected to the visual warning display terminal; Signal acquisition module: It is a multi-group sensor detection module box installed inside and outside the rail, used to collect the temperature, stress, vibration and offset signals of the train axle when the train rail passes; Signal processing module: It uses a high-speed processor chip to provide accurate real-time temperature, stress, vibration and offset signal data. The built-in software of the high-speed processor chip generates a 3D temperature thermal imaging model for the train axle, brake disc and wheel area scanned by infrared rays; Signal output module: used to transmit and output the signal processed by the signal processing module; Visual warning display terminal: receives various processed signals transmitted by the signal output module, and displays the signals as warnings for users to perform warning operations.

2. The intelligent monitoring and early warning system for train axles based on fiber grating according to claim 1 is characterized by: The sensor detection module box is equipped with an infrared temperature sensor for detecting temperature, a stress sensor for collecting stress, a vibration sensor for collecting vibration signals, and an offset sensor for collecting signals of train wheel axles.

3. The intelligent monitoring and early warning system for train axles based on fiber grating according to claim 1 is characterized by: The signal output of the signal output module is outputted using optical fiber.

4. The intelligent monitoring and early warning system for train axles based on fiber grating according to claim 1 is characterized by: The visual warning display terminal can adopt a visual intelligent video analysis software platform, a train terminal or a user handheld terminal.

5. The intelligent monitoring and early warning device for train axles based on fiber grating according to claim 1 is characterized by: The invention comprises a rail sleeper (1), a rail (2), a train axle (3), a train wheel (4), a brake pad (5), a detection mechanism (6), a signal processing module (7) and a visual warning display terminal (8), wherein two rails (2) are symmetrically mounted on the top of the rail sleeper (1), a train axle (3) is arranged on the rail (2), a train wheel (4) engaged with the rail (2) is arranged on the train axle (3), a brake pad (5) is arranged on the inner side of the train axle (3), a plurality of detection mechanisms (6) are mounted inside and outside the rail of the rail sleeper (1), the detection mechanism (6) is connected to the signal processing module (7) via an optical fiber, and the signal processing module (7) is connected to the visual warning display terminal (8) via an optical fiber; The detection mechanism (6) 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 collection assembly (17). The housing (9) is fixed on the sleeper (1). The middle part of the housing (9) is provided with a screw rod (10). The guide columns (11) are symmetrically fixed on both sides of the screw rod (10). One end of the screw rod (10) is provided with a first drive motor (12) for providing power. The screw rod (10) and the guide column (11) are provided with a lifting block (13). The lifting block (13) is provided with a thread hole (14) at a position corresponding to the screw rod (10). The vertical plate (16) and the collection assembly (17) are provided in the middle part of the top of the vertical plate (16).

6. The intelligent monitoring and early warning device for train axles based on fiber grating according to claim 5 is characterized by: The lifting block (13) is provided with a guide hole (15) at a position corresponding to the guide column (11).

7. The intelligent monitoring and early warning device for train axles based on fiber grating according to claim 5 is characterized by: The collection assembly (17) comprises a protective cover (18), a mounting plate (19), fixing bolts (20), a sensor (21), a rotating shaft (22) and a second driving motor (23); the protective cover (18) is fixed to the top of the vertical plate (16); the mounting plate (19) is rotatably mounted inside the protective cover (18); a plurality of sensors (21) are mounted on the edge of the mounting plate (19) via fixing bolts (20); and a rotating shaft (22) connected to the protective cover (18) via a bearing is arranged in the middle of the mounting plate (19).

8. The intelligent monitoring and early warning device for train axles based on fiber grating according to claim 7 is characterized by: One end of the rotating shaft (22) is connected to a second driving motor (23) mounted on the protective cover (18).

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