Sensor fusion monitoring railway slope fusion target body

Abstract

The utility model belongs to railway side slope monitoring technical field relates to a kind of sensor fusion monitoring's railway side slope fusion target body, including support, angle adjusting support, radar angle reflector and chessboard visual board;Support top is supported angle adjusting frame on horizontal plane rotation, radar angle reflector and chessboard visual board are supported on this angle adjusting frame pitch angle adjustment;Multiple squares of black and white two colors interval arrangement are drawn on chessboard visual board.This fusion target body fuses the target target point of railway side slope radar detection and camera video detection, and simple structure, easy to transport installation, and structure strength is big and suitable for long-term use in field environment.

Description

Technical Field

[0001] This utility model relates to the field of railway slope monitoring technology, specifically to a railway slope fusion target for sensor fusion monitoring. Background Technology

[0002] Currently, railway slope monitoring typically employs GNSS BeiDou high-precision positioning systems. Despite their high-precision positioning capabilities, they still face numerous challenges in complex railway slope environments. For example, severe weather can affect signals, leading to discontinuous or fluctuating monitoring data; installation and maintenance are difficult in steep slope areas; they cannot comprehensively capture minute deformations; and blind spots exist. Slope monitoring radar, as an active monitoring method, possesses non-contact monitoring capabilities. This method allows for real-time slope monitoring without interfering with normal railway operations. Furthermore, radar monitoring is not limited by light or weather conditions, maintaining stable monitoring even at night or in severe weather. To improve the accuracy of slope radar monitoring, corner reflectors are typically deployed at points of interest to enhance radar wave reflection intensity, thereby accurately monitoring displacement. However, in railway applications, the high-frequency vibrations from high-speed trains (freight or passenger) and the complex environment of railway line engineering mean that relying solely on radar monitoring cannot intuitively and completely accurately reflect slope changes. When the slope environment changes, such as due to construction work, slope inspections, or interference from foreign objects, it can obstruct the slope angle reflector and the monitored targets of interest, causing false alarms from the radar. Furthermore, traditional corner reflectors are insufficient in railway applications in terms of the flexibility and practicality of their installation and the long-term stability required. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to propose a fusion target for railway slope monitoring using sensor fusion. This fusion target integrates target points obtained from radar detection and camera video detection of railway slopes, and has a simple structure, is easy to transport and install, and has high structural strength suitable for long-term use in field environments.

[0004] To address the aforementioned issues, this utility model provides a fusion target for railway slope monitoring using sensor fusion, comprising a support, an angle adjustment bracket, a radar corner reflector, and a checkerboard vision board; the top of the support rotates to support the angle adjustment bracket on a horizontal plane, and the angle adjustment bracket supports the radar corner reflector and the checkerboard vision board by adjusting the pitch angle; the checkerboard vision board is decorated with multiple squares arranged in alternating black and white colors.

[0005] Preferably, the bottom of the angle adjustment bracket is fixed with a horizontal angle indexing flange, the middle of the angle adjustment bracket is horizontally inserted with a rotating shaft, and the top of the angle adjustment bracket is made into a pitch angle indexing plate with a top arc surface; the edge of the pitch angle indexing plate is provided with multiple horizontally penetrating indexing holes. The horizontal angle-split flange is adjusted horizontally on the top plane of the support and bolted together. One end of the radar corner reflector and the chessboard vision plate are rotatably mounted on the rotating shaft, while the other end of the radar corner reflector is pinned to the indexing hole, and the other end of the chessboard vision plate is attached to the radar corner reflector for pitch angle positioning constraint.

[0006] Preferably, a corner reflector support rod is fixedly provided at the bottom of the radar corner reflector. The radar corner reflector is a three-dimensional triangular structure with three closed sides, which is formed by fixing and splicing multiple triangular steel plates, and the signal receiving surface of the radar corner reflector is open. The bottom of the radar corner reflector is fixed with a corner reflector support rod. The middle transverse pin of the corner reflector support rod is inserted into the indexing hole to fix the pitch angle of the radar corner reflector, and the bottom end of the corner reflector support rod is rotatably sleeved on the rotating shaft.

[0007] Preferably, a support plate is fixedly connected to the bottom of the chessboard visual panel, and the upper tilt angle limiter of the chessboard visual panel overlaps the lower part of the radar corner reflector; the other end of the support plate is rotatably sleeved on the rotating shaft.

[0008] Preferably, the support is a vertical support, the bottom of which is fixedly supported on the ground foundation, and multiple reinforcing ribs are evenly distributed and axially extended on the outer periphery of the middle part of the support.

[0009] The advantages of this utility model compared with the prior art are as follows: This invention relates to railway slope monitoring. To integrate existing slope radar monitoring and camera video monitoring technologies and adapt to railway application scenarios, a novel target structure has been designed. The horizontal angle adjustment bracket, radar corner reflector, and checkerboard vision plate are adjusted by rotating the horizontal angle-grading flange. The pitch angle of the radar corner reflector and checkerboard vision plate is adjusted by inserting positioning pins into the graduation holes at different positions, ensuring that the target is not prone to loosening or movement during long-term monitoring. The modular design improves efficiency in production and transportation. The target design can simultaneously meet the monitoring needs of radar and video sensors, and provides reliable stability even in strong winds and heavy rain. The overall structure can adapt to complex field environments for extended periods. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention; In the diagram: 1-Radar corner reflector; 2-Checkerboard vision panel; 3-Index hole; 4-Angle adjustment bracket; 5-Horizontal angle indexing flange; 6-Support; 7-Corner reflector support rod; 8-Support plate; 9-Rotating shaft; 10-Pitch angle indexing plate; 12-Reinforcing rib. Detailed Implementation

[0012] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0013] like Figure 1 , 2 As shown, the present invention provides a sensor fusion monitoring target for railway slope, comprising a support 6, an angle adjustment bracket 4, a radar corner reflector 1, and a checkerboard vision board 2; the top of the support rotates to support the angle adjustment bracket on a horizontal plane, and the angle adjustment bracket supports the radar corner reflector and the checkerboard vision board by adjusting the pitch angle; the checkerboard vision board is decorated with multiple squares arranged in alternating black and white colors.

[0014] Preferably, the bottom of the angle adjustment bracket is fixed with a horizontal angle indexing flange 5, the middle of the angle adjustment bracket is horizontally inserted with a rotating shaft 9, and the top of the angle adjustment bracket is made into a pitch angle indexing plate 10 with a top arc surface; the edge of the pitch angle indexing plate is provided with multiple horizontally penetrating indexing holes 3. The horizontal angle-split flange is adjusted horizontally on the top plane of the support and bolted together. One end of the radar corner reflector and the chessboard vision plate are rotatably mounted on the rotating shaft, while the other end of the radar corner reflector is pinned to the indexing hole, and the other end of the chessboard vision plate is attached to the radar corner reflector for pitch angle positioning constraint.

[0015] Preferably, a corner reflector support rod 7 is fixedly provided at the bottom of the radar corner reflector. The radar corner reflector is a three-dimensional triangular structure with three closed sides, which is formed by fixing and splicing multiple triangular steel plates, and the signal receiving surface of the radar corner reflector is open. The bottom of the radar corner reflector is fixed with a corner reflector support rod. The middle transverse pin of the corner reflector support rod is inserted into the indexing hole to fix the pitch angle of the radar corner reflector, and the bottom end of the corner reflector support rod is rotatably sleeved on the rotating shaft.

[0016] Preferably, a support piece 8 is fixedly connected to the bottom of the chessboard visual panel, and the upper tilt angle limit of the chessboard visual panel overlaps the lower part of the radar corner reflector; the other end of the support piece is rotatably sleeved on the rotating shaft.

[0017] Preferably, the support is a vertical support, the bottom of which is fixedly supported on the ground foundation, and multiple reinforcing ribs 12 are evenly distributed and axially extended on the outer periphery of the middle part of the support.

[0018] To more clearly illustrate the specific implementation of this utility model, an embodiment is provided below: The specific installation and adjustment steps for a sensor fusion monitoring target for railway slopes according to this utility model are as follows: Taking the installation of the fusion target of this utility model on a railway slope as an example: 1. Site selection and pole installation: Excavate a foundation pit at the planned location, pour concrete to form a foundation, and install and fix the supports to the foundation to ensure its verticality and stability. The design of the supports greatly enhances the pole's resistance to overturning and impact after backfilling.

[0019] 2. Install the angle adjustment bracket: Secure the horizontal angle indexing flange to the top of the support using the anti-loosening screws. Then, place and fix the semi-circular pitch angle indexing plate on the base plate. According to the approximate direction of the radar, rotate the horizontal angle indexing flange, select the corresponding hole position on the edge of the horizontal angle indexing flange, insert the anti-loosening screws and tighten them to complete the coarse adjustment and fixation of the horizontal azimuth angle.

[0020] 3. Install the pitch angle indexing plate and pitch adjustment: Install the pitch angle indexing plate on the horizontal angle indexing flange. Secure the pin through the pin to the corner reflector support rod, with both ends of the pin fitting into the indexing holes on the pitch angle indexing plate to position the pitch angle of the corner reflector support rod.

[0021] 4. Install the corner reflector and chessboard vision panel: Install the radar corner reflector to the end of the corner reflector support rod and install the chessboard vision panel to the end of the support plate. The radar corner reflector constrains the rotational displacement of the chessboard vision panel.

[0022] 5. Final verification: Observe the echo signal of the target on the radar display screen, adjust the azimuth and elevation angles to maximize the radar echo intensity, and finally check and tighten all screws again.

[0023] Finally, any aspects of this utility model not fully described herein utilize existing mature products and technologies.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fusion target for railway slope monitoring using sensor fusion, characterized in that: It includes a support, an angle adjustment bracket, a radar corner reflector, and a chessboard vision panel; the top of the support rotates to support the angle adjustment bracket on a horizontal plane, and the pitch angle adjustment bracket supports the radar corner reflector and the chessboard vision panel; the chessboard vision panel is decorated with multiple squares arranged in alternating black and white colors.

2. The railway slope fusion target for sensor fusion monitoring according to claim 1, characterized in that: The bottom of the angle adjustment bracket is fixed with a horizontal angle indexing flange, the middle of the angle adjustment bracket is horizontally inserted with a rotating shaft, and the top of the angle adjustment bracket is made into a pitch angle indexing plate with a top arc surface; the edge of the pitch angle indexing plate is provided with multiple horizontally penetrating indexing holes. The horizontal angle-dividing flange is adjusted horizontally on the top plane of the support and bolted together. The radar corner reflector and the chessboard vision plate are rotatably mounted on a rotating shaft at one end, with the other end of the radar corner reflector pinned to the indexing hole, and the other end of the chessboard vision plate overlapping the radar corner reflector for pitch angle positioning constraint.

3. The railway slope fusion target for sensor fusion monitoring according to claim 2, characterized in that: The bottom of the radar corner reflector is fixed with a corner reflector support rod. The radar corner reflector is a three-dimensional triangular structure with three closed sides, which is formed by fixing and splicing multiple triangular steel plates. The signal receiving surface of the radar corner reflector is open. The bottom of the radar corner reflector is fixed with a corner reflector support rod. The middle transverse pin of the corner reflector support rod is inserted into the indexing hole to fix the pitch angle of the radar corner reflector, and the bottom end of the corner reflector support rod is rotatably sleeved on the rotating shaft.

4. The railway slope fusion target for sensor fusion monitoring according to claim 3, characterized in that: The bottom of the chessboard visual panel is fixedly connected to a support plate, and the upper tilt angle limiter of the chessboard visual panel overlaps the lower part of the radar corner reflector. The black and white squares drawn on the chessboard visual panel are set as video detection surfaces. The orientation of the video detection surfaces is the same as the orientation of the open surface of the radar corner reflector.

5. A fusion target for railway slope monitoring based on sensor fusion according to claim 1, characterized in that: The support is a vertical support, with its bottom fixedly supported on the ground foundation, and multiple reinforcing ribs evenly distributed and axially extended around the middle of the support.

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