Multispectral optical dynamic detection device mounted on a railway detection car

Abstract

The utility model discloses install on the multi -spectrum optical dynamic detection device of railway detection car, belong to railway contact network detection technical field, including biaxial steady holder and install on the detection host computer of biaxial steady holder surface, install ultraviolet sensor, visible light sensor, infrared sensor and light supplement lamp respectively on the detection host computer, the bottom of detection host computer is fixed with support seat, and the surface of detection host computer is provided with through slot, and the transparent protection board that extends to the support seat is inserted in the through slot, the top wall of detection host computer inner chamber is fixed with the protection box, the bottom swing joint of protection box is used for the cleaning plate that cleans transparent protection board, and the one side outer wall of detection host computer is installed with liquid storage tank. This install on the multi -spectrum optical dynamic detection device of railway detection car, realizes the high -speed dynamic detection to railway contact network, has automatic cleaning function simultaneously, improves detection efficiency and accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of railway catenary inspection technology, specifically involving a multi-spectral optical dynamic inspection device installed on a railway inspection vehicle. Background Technology

[0002] In railway transportation systems, the safe operation of the overhead contact system is of paramount importance. Traditional methods for inspecting the overhead contact system mainly include manual inspection and fixed-point 6C monitoring equipment. However, these methods have significant shortcomings: manual inspection is inefficient, highly susceptible to environmental influences, and poses safety hazards; the detection range of 6C fixed-point monitoring equipment is limited, unable to cover all areas, and especially difficult to comprehensively detect fault points in complex track environments.

[0003] With the increase in railway operating speed and transportation density, existing detection technologies face certain challenges: detection equipment is easily affected by factors such as vibration, dust, rain and snow during high-speed operation; stains on the surface of the protective plate can lead to a decrease in sensor detection accuracy; and traditional devices lack automatic cleaning functions, requiring frequent shutdowns for maintenance, which further reduces detection efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a multi-spectral optical dynamic inspection device installed on a railway inspection vehicle, in order to solve the problem mentioned in the background art that traditional devices lack automatic cleaning functions, require frequent shutdowns for maintenance, and further reduce inspection efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-spectral optical dynamic detection device installed on a railway inspection vehicle, comprising a dual-axis stabilized gimbal and a detection host mounted on the surface of the dual-axis stabilized gimbal. The detection host is equipped with an ultraviolet sensor, a visible light sensor, an infrared sensor, and a supplementary light. A support base is fixed to the bottom of the detection host, and a through groove is formed on the surface of the detection host. A transparent protective plate extending into the support base is inserted into the through groove. A protective box is fixed to the top wall of the inner cavity of the detection host. A cleaning plate for cleaning the transparent protective plate is movably connected to the bottom of the protective box. A liquid storage tank is installed on one outer wall of the detection host.

[0006] In a further embodiment, a plurality of support springs are fixed inside the support base, and the surface of the support springs is provided with a push plate that is movably connected to the support base.

[0007] In a further embodiment, a dual-axis motor is installed on the top wall of the inner cavity of the protective box, and guide screws are fixed to both output ends of the dual-axis motor, with the thread grooves of the two guide screws running in opposite directions.

[0008] In a further embodiment, a guide block is threadedly connected to the outer wall of the guide screw, a push-pull rod is provided below the guide block, and both ends of the push-pull rod are rotatably connected to mounting seats that are fixedly connected to the guide block and the cleaning plate. A cleaning cotton that fits against the transparent protective plate is installed on one side of the outer wall of the cleaning plate.

[0009] In a further embodiment, a miniature water pump is installed on the bottom wall of the inner cavity of the liquid storage tank, and a guide pipe connected to the cleaning plate is installed at the water outlet end of the miniature water pump. Multiple water outlet holes are opened on one side of the outer wall of the cleaning plate.

[0010] In a further embodiment, a connecting seat is fixed to the surface of the detection host, and a rotating sleeve is rotatably connected to the outside of the connecting seat. A limiting block for restricting the position of the transparent protective plate is fixed to one side of the outer wall of the rotating sleeve.

[0011] In a further embodiment, the connecting seat has multiple movable holes at equal intervals, a fixing spring is placed in the movable hole, a fixing pin is provided on one side of the fixing spring, and the inner wall of the rotating sleeve has multiple fixing grooves at equal intervals that match the fixing pin.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] The multi-spectral optical dynamic inspection device installed on the railway inspection vehicle uses a cleaning plate that moves up and down reciprocally via a guide screw and push-pull rod driven by a dual-axis motor. Combined with a spray system consisting of a liquid storage tank, a micro water pump, and water outlets, it automatically removes stains from the surface of the protective plate, avoiding inspection errors caused by contamination, reducing manual maintenance costs, and improving the continuous working capability of the equipment.

[0014] The transparent protective plate, along with the supporting spring, push plate, and limit block structure, can be quickly disassembled and replaced.

[0015] By combining ultraviolet sensors, visible light sensors, infrared sensors, and supplementary lighting, multi-dimensional real-time detection of contact network faults is achieved. Combined with the attitude compensation function of the dual-axis stabilized gimbal and inertial navigation and GPS / BeiDou positioning technology, the spatiotemporal consistency of detection data during high-speed movement is ensured, meeting the high-precision detection requirements in dynamic scenarios. This multi-spectral optical dynamic detection device, installed on a railway inspection vehicle, enables high-speed dynamic detection of railway contact networks and also has an automatic cleaning function, improving detection efficiency and accuracy. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model without a transparent protective plate;

[0019] Figure 3 This is a cross-sectional view of the support base of this utility model;

[0020] Figure 4 This is a cross-sectional view of the connecting seat and rotating sleeve of this utility model;

[0021] Figure 5 This is a cross-sectional view of the protective box and liquid storage tank of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the cleaning plate of this utility model.

[0023] In the diagram: 1. Dual-axis stabilized gimbal; 2. Detection host; 3. Ultraviolet sensor; 4. Visible light sensor; 5. Infrared sensor; 6. Supplemental light; 7. Support base; 8. Support spring; 9. Push plate; 10. Transparent protective plate; 11. Connecting seat; 12. Rotating sleeve; 13. Fixing spring; 14. Fixing pin; 15. Limiting block; 16. Protective box; 17. Dual-axis motor; 18. Guide screw; 19. Guide block; 20. Push-pull rod; 21. Cleaning plate; 22. Cleaning cotton; 23. Liquid storage tank; 24. Miniature water pump. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0026] This utility model provides, for example Figure 1-6The multi-spectral optical dynamic inspection device shown, installed on a railway inspection vehicle, includes a dual-axis stabilized gimbal 1 and an inspection host 2 mounted on the surface of the dual-axis stabilized gimbal 1. The dual-axis stabilized gimbal 1 is driven by a high-precision servo motor, allowing for continuous horizontal rotation from 0 to 360° and adjustable pitch from +60° to -45°. Its rotation speed ranges from 0.01° to 45° / s horizontally and 0.01° to 15° / s pitch. Equipped with an inertial measurement unit (IMU) and a lidar, it achieves real-time attitude compensation during motion. The outer shell is made of die-cast aluminum, with an IP67 protection rating, and can operate stably in environments ranging from -30°C to 70°C. The detection host 2 is equipped with an ultraviolet sensor 3, a visible light sensor 4, an infrared sensor 5, and a supplementary light 6. These sensors form a multi-spectral detection unit. The ultraviolet sensor 3 has a spectral range of 240-280nm and a minimum discharge sensitivity of 1pC / 10m. The infrared sensor 5 uses a polycrystalline silicon uncooled detector with a resolution of 640×480 and a temperature range of -20℃ to 150℃. The visible light sensor 4 is an 8-megapixel CMOS sensor with a resolution of 2560×1440 and supports 10x optical zoom. The detection host 2 also integrates GPS. The system comprises a BeiDou positioning module (positioning accuracy ≤1m), an inertial navigation module (pure inertial navigation accuracy ≤3m over 10km), and a lidar (range range 1m~120m, measurement rate ≥2000Hz). High-precision positioning in dynamic scenarios is achieved through a Kalman filter algorithm. Hardware clock synchronization technology, combined with the IEEE 1588 protocol, enables microsecond-level synchronization of multi-spectral sensor data and positioning data, ensuring spatiotemporal consistency of the detection data. Simultaneously, the detection host 2 is equipped with an AI processor (computing power ≥60TOPS) and a high-speed FPGA chip. The FPGA is responsible for real-time preprocessing of multi-spectral images. (Denoising, enhancement, registration) The AI ​​processor runs a multi-spectral fusion detection algorithm based on YOLOv8 to achieve real-time identification and rating of fault points with a recognition rate of ≥120fps. It adopts a feature-level fusion strategy, combining complementary features of infrared temperature field, ultraviolet discharge signal and visible light image to construct a three-dimensional fault feature space. It strengthens key features through attention mechanism to improve the fault recognition rate in complex backgrounds. The detection host 2 can record detection data in real time and automatically generate inspection reports, including fault point coordinates, level, historical detection records and trend analysis. It predicts potential faults through deep learning model and generates maintenance suggestions.

[0027] The bottom of the detection host 2 is fixed with a support base 7, and the surface of the detection host 2 is provided with a through groove. A transparent protective plate 10 extending into the support base 7 is inserted into the through groove. The transparent protective plate 10 can effectively protect the ultraviolet sensor 3, the visible light sensor 4, the infrared sensor 5 and the supplementary light 6. Multiple support springs 8 are fixed inside the support base 7, and the surface of the support springs 8 is provided with a push plate 9 that is movably connected to the support base 7. By pushing the push plate 9 with the support springs 8, the transparent protective plate 10 can be pushed upward, and the upper half of the transparent protective plate 10 can be pushed above the detection host 2, which makes it convenient to disassemble the transparent protective plate 10.

[0028] A connecting seat 11 is fixed to the surface of the detection host 2, and a rotating sleeve 12 is rotatably connected to the outside of the connecting seat 11. A limiting block 15 for limiting the position of the transparent protective plate 10 is fixed to one side of the outer wall of the rotating sleeve 12. The limiting block 15 fits against the surface of the transparent protective plate 10. When the transparent protective plate 10 is inserted into the support seat 7, the position of the transparent protective plate 10 is fixed to ensure the stability of the transparent protective plate 10 during detection. Multiple moving holes are equally spaced in the connecting seat 11. A fixing spring 13 is placed in the moving hole. A fixing pin 14 is provided on one side of the fixing spring 13. The fixing pin 14 is movably connected to the connecting seat 11. Multiple fixing grooves matching the fixing pin 14 are equally spaced on the inner wall of the rotating sleeve 12. The fixing spring 13 supports the fixing pin 14, so that the fixing pin 14 is inserted into the fixing groove of the rotating sleeve 12, which can fix the position of the rotating sleeve 12 and the limiting block 15.

[0029] A protective box 16 is fixed to the top wall of the inner cavity of the detection host 2. A cleaning plate 21 for cleaning the transparent protective plate 10 is movably connected to the bottom of the protective box 16. A liquid storage tank 23 is installed on one side of the outer wall of the detection host 2. A dual-axis motor 17 is installed on the top wall of the inner cavity of the protective box 16. Guide screws 18 are fixed to both output ends of the dual-axis motor 17. The thread grooves of the two guide screws 18 run in opposite directions. Guide blocks 19 are threadedly connected to the outer walls of the guide screws 18. A push-pull rod 20 is provided below the guide block 19. Both ends of the push-pull rod 20 are rotatably connected to mounting seats that are fixedly connected to the guide block 19 and the cleaning plate 21. A cleaning cotton 22 that fits against the transparent protective plate 10 is installed on one side of the outer wall of the cleaning plate 21. Rotation grooves are opened on both sides of the outer wall of the cleaning plate 21. Limiting balls are rolled in the rotation grooves. Two supply and limiting balls are symmetrically opened on the detection host 2. The limiting groove for the ball bearing slides restricts the movement path of the cleaning plate 21 when it moves, ensuring that the cleaning plate 21 moves vertically up and down on one side of the transparent protective plate 10. A micro water pump 24 is installed on the bottom wall of the inner cavity of the liquid storage tank 23. The liquid storage tank 23 stores cleaning liquid. The water outlet of the micro water pump 24 is connected to the guide pipe of the cleaning plate 21. Multiple water outlet holes are opened on one side of the outer wall of the cleaning plate 21. The micro water pump 24 draws the cleaning liquid from the liquid storage tank 23 and sprays the cleaning liquid onto the surface of the transparent protective plate 10 through the guide pipe and the cleaning plate 21. The dual-axis motor 17 drives the guide block 19 to move through the guide screw 18, and in conjunction with the push-pull rod 20, drives the cleaning plate 21 to move up and down on the surface of the transparent protective plate 10, automatically cleaning the transparent protective plate 10 and avoiding the impact of the detection accuracy of the detection host 2 on the contamination of the transparent protective plate 10.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Working principle:

[0033] The multi-spectral optical dynamic inspection device installed on the railway inspection vehicle is used by mounting the device on the top of the vehicle. The dual-axis stabilized gimbal 1 is driven by a high-precision servo motor and, in conjunction with an inertial measurement unit (IMU) and lidar, compensates for attitude deviations caused by vehicle movement in real time, ensuring that the inspection host 2 remains stable during high-speed travel. During inspection, the ultraviolet sensor 3, visible light sensor 4, and infrared sensor 5 synchronously collect contact network data, and the supplementary light 6 provides illumination in low-light environments. The GPS / BeiDou and inertial navigation modules achieve dynamic positioning through a Kalman filter algorithm, and hardware clock synchronization technology ensures that the multi-spectral data and positioning information are aligned at the microsecond level.

[0034] A transparent protective plate 10 covers the front end of the sensor. A support spring 8 pushes a push plate 9 to keep it in the plugged state. A rotating sleeve 12 locks the limiting block 15 with the connecting seat 11 through a fixing pin 14 to prevent the protective plate from loosening. When the protective plate is stained, a micro water pump 24 draws cleaning liquid from the storage tank 23 and sprays it onto the surface of the protective plate through the water outlet of the cleaning plate 21 via a guide pipe. A dual-axis motor 17 drives the guide screw 18 to rotate. Because the thread grooves are opposite, the guide blocks 19 on both sides move in opposite directions synchronously. The push-pull rod 20 drives the cleaning plate 21 to slide up and down along the limiting groove. The cleaning cotton 22 adheres to the surface of the protective plate to wipe away the stains, thus achieving automatic cleaning.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-spectral optical dynamic inspection device installed on a railway inspection vehicle, comprising a dual-axis stabilized gimbal (1) and an inspection host (2) mounted on the surface of the dual-axis stabilized gimbal, characterized in that: The detection host (2) is equipped with an ultraviolet sensor (3), a visible light sensor (4), an infrared sensor (5), and a supplementary light (6). A support base (7) is fixed to the bottom of the detection host (2), and a through groove is opened on the surface of the detection host (2). A transparent protective plate (10) extending into the support base (7) is inserted into the through groove. A protective box (16) is fixed to the top wall of the inner cavity of the detection host (2). A cleaning plate (21) for cleaning the transparent protective plate (10) is movably connected to the bottom of the protective box (16). A liquid storage tank (23) is installed on one side of the outer wall of the detection host (2).

2. The multi-spectral optical dynamic detection device installed on a railway inspection vehicle according to claim 1, characterized in that: The support base (7) has a plurality of support springs (8) fixed inside, and the surface of the support springs (8) is provided with push plates (9) that are movably connected to the support base (7).

3. The multi-spectral optical dynamic detection device installed on a railway inspection vehicle according to claim 1, characterized in that: A dual-axis motor (17) is installed on the top wall of the inner cavity of the protective box (16), and guide screws (18) are fixed at both output ends of the dual-axis motor (17), with the thread grooves of the two guide screws (18) running in opposite directions.

4. The multi-spectral optical dynamic detection device installed on a railway inspection vehicle according to claim 3, characterized in that: The outer wall of the guide screw (18) is threaded with a guide block (19). A push-pull rod (20) is provided below the guide block (19), and both ends of the push-pull rod (20) are rotatably connected to mounting seats that are fixedly connected to the guide block (19) and the cleaning plate (21). A cleaning cotton (22) that fits against the transparent protective plate (10) is installed on one side of the outer wall of the cleaning plate (21).

5. The multi-spectral optical dynamic detection device installed on a railway inspection vehicle according to claim 1, characterized in that: A miniature water pump (24) is installed on the bottom wall of the inner cavity of the liquid storage tank (23). The water outlet of the miniature water pump (24) is connected to the cleaning plate (21) via a guide pipe. Multiple water outlet holes are provided on one side of the outer wall of the cleaning plate (21).

6. The multi-spectral optical dynamic detection device installed on a railway inspection vehicle according to claim 1, characterized in that: The surface of the detection host (2) is fixed with a connecting seat (11), and a rotating sleeve (12) is rotatably connected to the outside of the connecting seat (11). A limiting block (15) for limiting the position of the transparent protective plate (10) is fixed on one side of the outer wall of the rotating sleeve (12).

7. The multi-spectral optical dynamic detection device installed on a railway inspection vehicle according to claim 6, characterized in that: The connecting seat (11) has multiple moving holes at equal intervals, and a fixing spring (13) is placed in the moving hole. A fixing pin (14) is provided on one side of the fixing spring (13). The inner wall of the rotating sleeve (12) has multiple fixing grooves at equal intervals that match the fixing pin (14).

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