A full-section scanning wind measurement system for an arched tunnel and its testing method

Abstract

The present invention discloses a full-section scanning wind measurement system for an arched tunnel and a test method thereof, comprising a track assembly for fitting the arched tunnel, the track assembly comprising an arch top portion fitting the tunnel arch and a first column assembly and a second column assembly fitting the tunnel side wall, a connected sliding cavity being provided on a side surface of the track assembly facing away from the tunnel wall, a mounting seat and a power assembly for controlling the movement of the mounting seat being slidingly provided in the sliding cavity of the first column assembly and the sliding cavity of the second column assembly, a directed wind speed sensor being provided on the mounting seat, a self-alignment system for controlling the automatic alignment of two groups of wind speed sensors being provided on the mounting seat, the self-alignment system comprising an electrically connected adjustment module and a capture module, the adjustment module being used to control the position of the sensor, and the capture module being used to measure the angular difference between the sensors. By setting up the self-alignment system, the present invention can perform real-time self-alignment of the directed wind speed sensor each time a full-section scanning wind measurement of the arched tunnel is performed.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine ventilation system detection equipment, and in particular to an arched tunnel full-section scanning wind measurement system and a testing method thereof. Background Art

[0002] The purpose of mine ventilation is to continuously deliver an appropriate amount of fresh air from the surface to various points underground, ensuring the normal physiological needs of underground workers and safe mine production. During daily mine operations, the key to the high-performance operation of mine ventilation systems lies in the accuracy of roadway ventilation measurement.

[0003] Currently, the automation and intelligence levels of mine ventilation systems are increasing, and the measurement of wind speed in underground tunnels primarily relies on sensors. Generally, there are two methods for measuring average wind speed in tunnels: single-point and multi-point. The multi-point method involves deploying multiple wind speed sensors within a tunnel section and calculating the arithmetic mean of the monitoring data from each wind speed sensor to obtain the average wind speed. This method can achieve high measurement accuracy, but the test efficiency is low, and deploying sensors at multiple points can hinder normal passage through the tunnel. Therefore, multi-point wind measurement is not suitable for long-term monitoring of tunnel wind speed. Single-point wind measurement, due to its simplicity and efficiency, has become the primary method for measuring wind speed in tunnels.

[0004] Due to the limitations of excavation technology and costs, real tunnels inevitably experience over-excavation and under-excavation, which in turn generates eddy currents near the wall. If the sensor is suspended in this eddy current area, the difficulty and accuracy of wind speed acquisition are greatly reduced. In addition, since single-point wind measurement can only monitor the wind speed at a single point, and the wind speed at each point on the tunnel cross-section is not uniform, the wind speed obtained by a single-point sensor as a representative of the tunnel's average wind speed has a large error. Moreover, since the sensor is exposed to the tunnel environment during measurement, it is easily affected by external factors, causing the sensor to shift position, resulting in deviations in the detection results. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To achieve the above-mentioned objectives, the present invention proposes a full-section scanning wind measurement system for an arched tunnel, comprising: a track assembly for fitting into the arched tunnel, the track assembly comprising an arch top portion fitting into the tunnel arch and a first column assembly and a second column assembly fitting into the tunnel sidewall, a connected sliding cavity being provided on a side of the track assembly facing away from the tunnel wall, a mounting seat and a power assembly for controlling the movement of the mounting seat being slidingly provided in the sliding cavity of the first column assembly and the sliding cavity of the second column assembly, a facing wind speed sensor being provided on the mounting seat, a self-alignment system for controlling the automatic alignment of two groups of the facing wind speed sensors being provided on the mounting seat, the self-alignment system comprising an electrically connected adjustment module and a capture module, the adjustment module being used to control the position of the facing wind speed sensor, the capture module being used to measure the angular difference between the two groups of facing wind speed sensors, when the angular difference is a preset angle, the capture module sending a stop signal to the adjustment module, and the adjustment module stopping the adjustment action; when the angular difference is not a preset angle, the capture module sending an adjustment signal to the adjustment module, and the adjustment module performing the adjustment action.

[0007] The present invention sets up a self-alignment system, which enables the opposing wind speed sensors to perform real-time self-alignment each time the entire arch tunnel is scanned for wind measurement, so that the two groups of opposing wind speed sensors can maintain mutual alignment to perform wind speed scanning operations on the arch tunnel section, thereby ensuring the accuracy of the scanning process.

[0008] Optionally, the adjustment module includes a horizontal adjustment component and a vertical adjustment component.

[0009] The horizontal adjustment assembly includes: a first bracket vertically mounted on the mounting base, a first adjustment shaft for controlling the horizontal rotation of the incident wind speed sensor is rotatably provided at one end of the first bracket away from the mounting base, and a first adjustment power member for providing power for the rotation of the first adjustment shaft is provided on the first bracket;

[0010] The vertical adjustment assembly includes: a second bracket fixedly connected to the first adjustment shaft, the second bracket is provided with a second adjustment shaft for controlling the vertical rotation of the incident wind speed sensor, the incident wind speed sensor is fixedly connected to the second adjustment shaft, and the second bracket is provided with a second adjustment power member for providing power for the rotation of the second adjustment shaft.

[0011] Furthermore, the capture module includes an image capture unit, a position recognition unit, and a signal processing unit;

[0012] The image capturing unit is provided at the end of the first bracket, the position identifying unit is provided on the incident wind speed sensor, and the signal processing unit is provided on the mounting base;

[0013] The image capture unit provided on the first column assembly is used to capture the position identification unit on the second column assembly, and the image capture unit provided on the second column assembly is used to capture the position identification unit on the first column assembly. The signal processing unit is used to receive the image information captured by the image capture unit and send an action signal to the adjustment module.

[0014] Furthermore, the signal processing unit includes an image storage node, an image comparison and analysis node, an action signal generation node, and a timing node;

[0015] The image storage node is used to store image information captured by the image capture unit when self-alignment is completed for the first time;

[0016] The image comparison and analysis node is used to call the image information of the image storage node and the real-time image information of the image capture unit, and perform angle difference analysis of the position recognition unit, and send a corresponding signal to the action signal generation node according to the analysis result;

[0017] The action signal generating node is used to receive the signal sent by the image comparison and analysis node and send a corresponding action signal to the adjustment module;

[0018] The timing node performs time stamping on the image information collected by the image collection unit.

[0019] Furthermore, the power assembly includes a sliding track, a first steel wire rope, a second steel wire rope, a power cylinder, a pulley block and a fixed seat;

[0020] The sliding track is arranged along the length direction of the sliding cavity, passing through the arch top, the first column assembly and the second column assembly, and the mounting seat and the sliding track are slidingly connected via a sliding wheel;

[0021] The pulley assembly includes a power fixed pulley arranged at the end of the telescopic rod of the power cylinder, an end fixed pulley arranged at the ground end of the sliding cavity and the center end of the arch, and a plurality of direction-changing fixed pulleys arranged between the end fixed pulleys in the sliding cavity for changing the direction of the first steel wire and the second steel wire;

[0022] One end of the first steel wire rope is fixedly arranged on the inner wall of the sliding cavity above the power fixed pulley, and the other end of the first steel wire rope passes under the power fixed pulley and over the end fixed pulley located at the top end of the sliding cavity arch and is fixedly connected to the mounting seat;

[0023] One end of the second steel wire rope is fixedly connected to the fixing seat, and the other end of the second steel wire rope is passed over the fixed pulley and under the direction-changing fixed pulley located at the lower end of the sliding cavity and then fixedly connected to the mounting seat;

[0024] The first steel rope and the second steel rope are both deflected by a plurality of deflection fixed pulleys when being routed, so that the first steel rope and the second steel rope are located in the sliding cavity and do not affect the movement of the mounting seat on the sliding track.

[0025] Furthermore, the power assembly includes a flexible track, a sliding wheel, and a drive motor;

[0026] The flexible track is arranged along the length direction of the sliding cavity, passing through the arch top, the first column assembly and the second column assembly, and a fixing frame for fixing the flexible track is provided in the sliding cavity;

[0027] The sliding wheels are arranged on the side of the mounting seat facing the flexible track, and each two sliding wheels form a group to relatively clamp the flexible track. The mounting seat is rotatably connected to the sliding wheels. The sliding wheels are arranged along the length direction of the flexible track, and the number of groups is greater than 2;

[0028] The driving motor is arranged on the mounting group adjacent to the sliding wheels, and is used to drive one group of sliding wheels to rotate so as to drive the mounting seat to move along the flexible track.

[0029] Furthermore, the power assembly includes a rack track, a power gear and a power motor;

[0030] The rack track is arranged along the length direction of the sliding cavity, and the rack surface of the rack track is arranged toward one side of the mounting seat, and the mounting seat is slidingly connected to the non-rack surface of the rack track;

[0031] The power gear is arranged on a side of the mounting base facing the rack track, and the power gear is meshed with the rack surface of the rack track;

[0032] The power motor is fixedly arranged on the mounting seat and is used to drive the rack to rotate, and the two power motors on the two mounting seats are electrically connected to a controller for controlling the two power motors to work synchronously.

[0033] A method for testing an arched tunnel full-section scanning wind measurement system comprises the following steps:

[0034] S1. Select the correct location for track assembly installation and establish a full-section scanning wind measurement system for the arched tunnel;

[0035] S2, starting the adjustment module and the capture module of the self-alignment system to control the through-beam wind speed sensor on the first column assembly and the through-beam wind speed sensor on the second column assembly to perform an alignment operation;

[0036] S3, controlling the through-beam wind speed sensor on the first column assembly and the through-beam wind speed sensor on the second column assembly to move synchronously along the track assembly through the control component to perform a wind speed scanning operation on the arched tunnel section;

[0037] S4. After the scanning is completed, the control component controls the through-beam wind speed sensor on the first column assembly and the through-beam wind speed sensor on the second column assembly to move synchronously to the top of the arched tunnel and then stop working, thereby completing the scanning operation.

[0038] Furthermore, in S1, the installation positions of the first column assembly and the second column assembly are selected as the flat areas of the walls on both sides of the ventilation tunnel, and the installation positions are 3-4m away from the corners and the dampers. The first column assembly and the second column assembly are both provided with a reserved distance from the tunnel top wall and the ground, and the reserved distance is adjusted according to the on-site conditions.

[0039] Furthermore, the step S2 specifically includes the following steps:

[0040] S21: The image acquisition units on the first column assembly and the second column assembly each acquire image information from the position recognition unit on the other side for the first time, and directly send the image information to the image comparison and analysis node in the signal processing unit for angle difference calculation and analysis. Based on the analysis results, a horizontal angle adjustment signal is output to the first adjustment motor of the adjustment module, and a vertical angle adjustment signal is sent to the second adjustment motor of the adjustment module.

[0041] S22, the image storage node stores the analyzed image and provides the image comparison and analysis node with the image for image call in the subsequent image comparison and analysis process;

[0042] S23. After completing step S21, the image storage node simultaneously calls the latest stored image of the image storage node and the real-time image collected by the image acquisition unit for comparative analysis, and sends a signal to the action signal generating node based on the analysis result;

[0043] S24 , after receiving the signal from the image acquisition and analysis unit, the action generating node sends a corresponding action signal to the adjustment module, including a stop signal, a forward adjustment signal, and a reverse adjustment signal.

[0044] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0046] Figure 1This is a schematic diagram of the overall structure of an arched tunnel full-section scanning wind measurement system according to the present invention;

[0047] Figure 2 This is a schematic structural diagram of a first column assembly and a second column assembly of a full-section scanning wind measurement system for an arched tunnel according to the present invention;

[0048] Figure 3 This is a schematic diagram of the structure of the through-beam wind speed sensor installation part of a full-section scanning wind measurement system for an arched tunnel according to the present invention, which aims to illustrate the structure of the mounting base, adjustment module, and capture module;

[0049] Figure 4 2. It is a schematic diagram of signal processing of a signal processing unit of a full-section scanning wind measurement system for an arched tunnel according to the present invention;

[0050] Figure 5 This is a schematic diagram of the structure of a power assembly of an embodiment of an arched tunnel full-section scanning wind measurement system according to the present invention;

[0051] Figure 6 This is a schematic structural diagram of a synchronization device according to an embodiment of an arched tunnel full-section scanning wind measurement system of the present invention;

[0052] Figure 7 This is a schematic diagram of the flexible track structure of another embodiment of an arched tunnel full-section scanning wind measurement system according to the present invention, which is intended to illustrate the connection structure and movement relationship between the flexible track and the mounting base;

[0053] Figure 8 This is a schematic diagram of the connection between the mounting base and the sliding track of another embodiment of an arched tunnel full-section scanning wind measurement system according to the present invention, intended to illustrate the structure when the sliding track is a flexible track;

[0054] Figure 9 This is a schematic diagram of the overall structure of a power assembly of another embodiment of an arched tunnel full-section scanning wind measurement system according to the present invention;

[0055] Figure 10 This is a schematic diagram of the mounting base structure of another embodiment of an arched tunnel full-section scanning wind measurement system according to the present invention, intended to illustrate the meshing structure of the power gear and rack track on the mounting base;

[0056] Figure 11 This is a flow chart of the overall method of a method for testing an arched tunnel full-section scanning wind measurement system according to the present invention;

[0057] Figure 12 This is a specific flow chart of step S2 of a rectangular tunnel full-section scanning wind measurement system testing method according to the present invention.

[0058] Description of reference numerals:

[0059] 1. Arch top; 21. First column assembly; 22. Second column assembly; 3. Sliding cavity; 4. Mounting seat; 41. Sliding plate; 42. Mounting plate; 43. Sliding wheel; 5. Power assembly; 51. Sliding track; 511. Fixing clamp; 52. First wire rope; 53. Second wire rope; 54. Power source; 55. Pulley block; 551. Power fixed pulley; 552. Direction-changing fixed pulley; 56. Fixing seat; 57. Drive motor; 58. Rack track; 59. Power gear; 591. Power motor; 6. Through-beam wind speed sensor; 7. Adjustment module; 71. First bracket; 72. First adjustment shaft; 73. First adjustment power member; 74. Second bracket; 75. Second adjustment shaft; 76. Second adjustment power member; 8. Capture module; 81. Image capture unit; 82. Position recognition unit; 83. Signal processing unit; 831. Timing node; 832. Image comparison and analysis node; 833. Image storage node; 834. Action signal generation node; 9. Synchronizing device; 91. First synchronization wire; 92. Second synchronization wire; 93. Steering pulley. DETAILED DESCRIPTION

[0060] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0061] The present invention provides a full-section scanning wind measurement system for an arched tunnel. Figures 1 to 10 Elaborate in detail.

[0062] A full-section scanning wind measurement system for an arched tunnel comprises: a track assembly for fitting the arched tunnel, the track assembly comprising an arch top portion 1 fitting the tunnel arch and a first column assembly 21 and a second column assembly 22 fitting the tunnel side wall, a sliding cavity 3 is provided on the side of the track assembly facing away from the tunnel wall, a mounting seat 4 and a power assembly 5 for controlling the movement of the mounting seat 4 are both slidingly provided in the sliding cavity 3 of the first column assembly 21 and the sliding cavity 3 of the second column assembly 22, a directed wind speed sensor 6 is provided on the mounting seat 4, and a There is a self-alignment system for controlling the automatic alignment of the two groups of wind speed sensors. The self-alignment system includes an electrically connected adjustment module 7 and a capture module 8. The adjustment module 7 is used to control the position of the opposing wind speed sensor 6, and the capture module 8 is used to measure the angle difference between the two groups of opposing wind speed sensors 6. When the angle difference is a preset angle, the capture module 8 sends a stop signal to the adjustment module 7, and the adjustment module 7 stops the adjustment action; when the angle difference is not a preset angle, the capture module 8 sends an adjustment signal to the adjustment module 7, and the adjustment module 7 performs an adjustment action.

[0063] The present invention sets up a self-alignment system, which enables the opposing wind speed sensors 6 to perform real-time self-alignment each time the entire arch tunnel is scanned for wind measurement, so that the two groups of opposing wind speed sensors 6 can maintain mutual alignment to perform wind speed scanning operations on the arch tunnel section, thereby ensuring the accuracy of the scanning process.

[0064] Furthermore, the adjustment module 7 is a specific adjustment mechanical structure of the incident wind speed sensor 6, which mainly includes a horizontal adjustment component and a vertical adjustment component.

[0065] The horizontal adjustment assembly includes: a first bracket 71 vertically mounted on the mounting base 4; a first adjustment shaft 72 for controlling the horizontal rotation of the incident wind speed sensor 6 is rotatably provided at one end of the first bracket 71 away from the mounting base 4; and a first adjustment power member 73 for providing power for the rotation of the first adjustment shaft 72 is provided on the first bracket 71;

[0066] The vertical adjustment component includes: a second bracket 74 fixedly connected to the first adjustment shaft 72, a second adjustment shaft 75 for controlling the vertical rotation of the incident wind speed sensor 6 is provided on the second bracket 74, the incident wind speed sensor 6 is fixedly connected to the second adjustment shaft 75, and a second adjustment power part 76 for providing power for the rotation of the second adjustment shaft 75 is provided on the second bracket 74.

[0067] In this embodiment, the first adjusting power member 73 and the second adjusting power member 76 are both configured as servo motors, and the servos of the servo motors are electrically connected to the capture module 8 .

[0068] When the horizontal angle of the incident wind speed sensor 6 needs to be adjusted, the first adjusting power component 73 will drive the first adjusting shaft 72 to rotate, thereby driving the second bracket 74 and the wind speed sensor on the second bracket 74 to rotate and adjust; when the vertical angle of the incident wind speed sensor 6 needs to be adjusted, the second adjusting motor will drive the wind speed sensor to rotate and adjust in the vertical direction to complete the vertical angle adjustment of the incident wind speed sensor 6.

[0069] Furthermore, the capture module 8 includes an image capture unit 81 , a position recognition unit 82 , and a signal processing unit 83 ;

[0070] The image capture unit 81 is disposed at the end of the first bracket 71. The position recognition unit 82 is disposed on the incident wind speed sensor 6. In this embodiment, it is disposed at the lower edge of the detection end of the incident wind speed sensor 6. In other embodiments, it can be disposed according to actual conditions. The signal processing unit 83 is disposed on the mounting base 4.

[0071] The image capture unit 81 provided on the first column assembly 21 is used to capture the position identification unit 82 on the second column assembly 22, and the image capture unit 81 provided on the second column assembly 22 is used to capture the position identification unit 82 on the first column assembly 21. The signal processing unit 83 is used to receive the image information captured by the image capture unit 81 and send an action signal to the adjustment module 7.

[0072] Specifically, in order to achieve real-time self-alignment of the self-alignment system, a plurality of working nodes including an image storage node 833, an image comparison and analysis node 832, an action signal generation node 834, and a timing node 831 are provided in the signal processing unit 83;

[0073] The image storage node 833 is used to store the image information captured by the image capture unit 81 when the self-alignment is completed for the first time;

[0074] The image comparison and analysis node 832 is used to call the image information of the image storage node 833 and the real-time image information of the image capture unit 81, and perform angle difference analysis of the position recognition unit 82, and send a corresponding signal to the action signal generation node 834 according to the analysis result;

[0075] The action signal generating node 834 is used to receive the signal sent by the image comparison and analysis node 832 and send a corresponding action signal to the adjustment module 7;

[0076] The timing node 831 performs time stamping on the image information collected by the image collection unit.

[0077] The image comparison and analysis node 832 will continuously call the first self-alignment image of the image storage node 833 and the real-time image information collected by the image acquisition unit for comparison, thereby ensuring that during the entire wind speed test process, the incident wind speed sensor 6 will not be offset due to wind or other external forces, thereby causing inaccurate measurement results.

[0078] In order to achieve synchronous movement of the two sets of mounting seats 4 in the track assembly, in some embodiments, the power assembly 5 includes a sliding track 51, a first steel wire rope 52, a second steel wire rope 53, a power cylinder, a pulley set 55 and a fixing seat 56;

[0079] The sliding track 51 is arranged along the length direction of the sliding cavity 3, passing through the arch top portion 1, the first column assembly 21 and the second column assembly 22, and the mounting seat 4 is slidably connected to the sliding track 51;

[0080] The pulley assembly 55 includes a power fixed pulley 551 provided at the end of the telescopic rod of the power cylinder, an end fixed pulley provided at the ground end of the sliding chamber 3 and the center end of the arch, and a plurality of direction-changing fixed pulleys 552 provided between the end fixed pulleys in the sliding chamber 3 for changing the direction of the first steel rope 52 and the second steel rope 53;

[0081] One end of the first steel wire rope 52 is fixedly arranged on the inner wall of the sliding chamber 3 above the power fixed pulley 551, and the other end of the first steel wire rope 52 passes under the power fixed pulley 551 and over the end fixed pulley located at the top end of the arch of the sliding chamber 3, and is then fixedly connected to the mounting seat 4;

[0082] One end of the second steel wire rope 53 is fixedly connected to the fixing seat 56, and the other end of the second steel wire rope 53 passes over the fixed pulley and under the direction-changing fixed pulley 552 at the lower end of the sliding chamber 3 and is fixedly connected to the mounting seat 4;

[0083] The first steel rope 52 and the second steel rope 53 are both redirected by a plurality of redirecting fixed pulleys 552 during routing, so that the first steel rope 52 and the second steel rope 53 are located in the sliding cavity 3 and do not affect the movement of the mounting seat 4 on the sliding track 51 .

[0084] A control component is provided in the sliding chamber 3 , and the control component is electrically connected to the air circuit control of the power cylinder for controlling the stroke of the power cylinder.

[0085] In this embodiment, in order to achieve synchronous movement of the two mounting seats 4, a synchronization device 9 is provided in the arch portion 1 of the track assembly, the first column assembly 21 and the second column assembly 22. The synchronization device 9 includes a first synchronization wire 91 and a second synchronization wire 92. Among them, one end of the first synchronous steel wire 91 is fixedly connected to the bottom end of the mounting seat 4 in the first column assembly 21, and the other end of the first synchronous steel wire 91 is fixedly connected to the top end of the mounting seat 4 in the second column assembly 22. In order to realize the routing of the first synchronous steel wire 91, a plurality of first synchronous steel wire 91 steering pulleys 93 are provided at the bottom and top end of the sliding cavity 3 in the first column assembly 21, the sliding cavity 3 of the arch top 1, and the top end of the second sliding cavity 3. The first synchronous steel wire 91 successively passes around the steering pulleys 93 of the first synchronous steel wire 91 located at the bottom end of the sliding cavity 3 of the first column assembly 21, the top end of the sliding cavity 3 of the first column assembly 21, the sliding cavity 3 of the arch top 1, and the top end of the sliding cavity 3 of the second footing assembly; Among them, one end of the second synchronous steel wire 92 is fixedly connected to the bottom end of the mounting seat 4 in the second column assembly 22, and the second synchronous steel wire 92 The other end is fixedly connected to the top of the mounting seat 4 in the first column assembly 21. To realize the routing of the second synchronization wire 92, a plurality of second synchronization wire 92 steering pulleys 93 are provided at the bottom and top of the sliding cavity 3 in the second column assembly 22, in the sliding cavity 3 of the arch top portion 1, and at the top of the first sliding cavity 3. The second synchronization wire 92 sequentially passes around the second synchronization wire 92 steering pulleys 93 located at the bottom of the sliding cavity 3 of the second column assembly 22, the top of the sliding cavity 3 of the second column assembly 22, in the sliding cavity 3 of the arch top portion 1, and at the top of the sliding cavity 3 of the first footing assembly. In some embodiments, the synchronization device 9 can synchronize the lead screw and the encoder positioning.

[0086] In this embodiment, the sliding track 51 is a rigid track made of a column material. In another embodiment, referring to Figure 7 and Figure 8The sliding track 51 can be a flexible track made of materials such as iron wire, steel wire, and steel cable. In order to fix the flexible track, a fixing clamp 511 for fixing the flexible track is provided on the inner wall of the sliding cavity, and multiple groups of sliding wheels 43 are also provided between the mounting seat 4 and the flexible track. A driving motor 57 for driving the sliding wheel 43 to rotate is provided on the side of one group of sliding wheels 43, thereby driving the mounting seat to move along the flexible track. In this embodiment, the driving motor 57 is installed on the side of the top sliding wheel 43, and in order to ensure that this group of sliding wheels equipped with the driving motor 57 can better drive the mounting seat 4 to move and avoid relative sliding between the mounting seat 4 and the flexible track, in some embodiments, the surface of this group of sliding wheels 43 equipped with the driving motor 57 is provided with an anti-slip layer at the contact position with the flexible track, or this group of sliding wheels itself is made of a material with a large friction coefficient. When the mounting base 4 passes through the fixing clamp 511, at least two sets of sliding wheels 43 are clamped on the flexible track, ensuring a tight fit between the mounting base 4 and the flexible track and reducing the possibility of derailment. Therefore, the number of sliding wheels 43 should be greater than two, and in this embodiment, three sets are provided. The sliding wheels 43 themselves can also be elastic, i.e., made of an elastic material, or provided with an elastic layer on the contact surface between the sliding wheels 43 and the flexible track, further ensuring a tight clamping between the sliding wheels 43 and the flexible track. The cross-section of the flexible track can be polygonal to reduce the possibility that the mounting base will rotate along the flexible track during travel, thereby affecting the angle of the incident wind speed sensor.

[0087] In other embodiments, referring to Figure 9 and Figure 10 In order to achieve synchronous movement of the two sets of mounting seats 4 in the track assembly, the power assembly 5 includes a rack track 58, a power gear 59 and a power motor 591;

[0088] The rack track 58 is arranged along the length direction of the sliding cavity 3, and the rack surface of the rack track 58 is arranged toward the side of the mounting seat 4, and the mounting seat 4 is slidingly connected to the non-rack surface of the rack track 58;

[0089] The power gear 59 is disposed on the side of the mounting base 4 facing the rack track 58 , and the power gear 59 is meshed with the rack surface of the rack track 58 ;

[0090] The power motor 591 is fixedly mounted on the mounting base 4 for driving the power gear 59 to rotate, and the two power motors 591 on the two mounting bases 4 are electrically connected to the same controller for controlling the two power motors 591 to work synchronously.

[0091] The present invention also provides a method for testing an arched tunnel full-section scanning wind measurement system, as shown below. Figures 11 to 12 Elaborate in detail.

[0092] A method for testing an arched tunnel full-section scanning wind measurement system comprises the following steps:

[0093] S1. Select the correct location for track assembly installation and establish a full-section scanning wind measurement system for the arched tunnel;

[0094] S2, start the adjustment module 7 and the capture module 8 of the self-alignment system to control the through-beam wind speed sensor 6 on the first column assembly 21 and the through-beam wind speed sensor 6 on the second column assembly 22 to perform alignment operation;

[0095] S3, controlling the through-beam wind speed sensor 6 on the first column assembly 21 and the through-beam wind speed sensor 6 on the second column assembly 22 to move synchronously along the track assembly through the control component to perform a wind speed scanning operation on the arched tunnel section;

[0096] S4. After the scanning is completed, the control component controls the through-beam wind speed sensor 6 on the first column assembly 21 and the through-beam wind speed sensor 6 on the second column assembly 22 to move synchronously to the top of the arched tunnel and then stop working, completing the scanning operation.

[0097] During step S1, the installation location needs to be selected. In S1, the first column assembly 21 and the second column assembly 22 are installed on a flat area on both sides of the ventilation tunnel wall, 3-4 meters from the corner and the damper. A reserved distance is set between the first column assembly 21 and the second column assembly and the tunnel ceiling and the ground, and the reserved distance is adjusted according to the site conditions.

[0098] In order to realize the real-time synchronous alignment operation, S2 specifically includes the following steps:

[0099] S21, the image acquisition units on the first column assembly 21 and the second column assembly 22 each first collect image information from the position recognition unit 82 on the other side, and directly send the image information to the image comparison and analysis node 832 in the signal processing unit 83 for angle difference calculation and analysis. Based on the analysis results, a horizontal angle adjustment signal is output to the first adjustment motor of the adjustment module 7, and a vertical angle adjustment signal is sent to the second adjustment motor of the adjustment module 7.

[0100] S22, the image storage node 833 stores the analyzed image and provides the image comparison and analysis node 832 with the image for image call in the subsequent image comparison and analysis process;

[0101] S23. After completing step S21, the image storage node 833 simultaneously calls the latest stored image of the image storage node 833 and the real-time image collected by the image acquisition unit for comparative analysis, and sends a signal to the action signal generating node 834 based on the analysis result.

[0102] S24 , after receiving the signal from the image acquisition and analysis unit, the action generating node sends a corresponding action signal to the adjustment module 7 , including a stop signal, a forward adjustment signal, and a reverse adjustment signal.

[0103] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0104] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0105] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A full-section scanning wind measurement system for an arched tunnel, characterized in that: include: A track assembly for fitting an arched tunnel, the track assembly comprising an arch top portion fitting the tunnel arch and a first column assembly and a second column assembly fitting the tunnel side wall, a connected sliding cavity being provided on the side of the track assembly facing away from the tunnel wall, a mounting seat and a power assembly for controlling the movement of the mounting seat being slidingly provided in the sliding cavity of the first column assembly and the sliding cavity of the second column assembly, a directed wind speed sensor being provided on the mounting seat, a self-alignment system for controlling the automatic alignment of the two groups of directed wind speed sensors being provided on the mounting seat, the self-alignment system comprising an electrically connected adjustment module and a capture module, the adjustment module being used to control the position of the directed wind speed sensor, the capture module being used to measure the angle difference between the two groups of directed wind speed sensors, when the angle differences are both preset angles, the capture module sending a stop signal to the adjustment module, and the adjustment module stopping the adjustment action; when the angle difference is not the preset angle, the capture module sending an adjustment signal to the adjustment module, and the adjustment module performing the adjustment action.

2. The full-section scanning wind measurement system for an arched tunnel according to claim 1, characterized in that: The adjustment module includes a horizontal adjustment component and a vertical adjustment component. The horizontal adjustment assembly includes: a first bracket vertically mounted on the mounting base, a first adjustment shaft for controlling the horizontal rotation of the incident wind speed sensor is rotatably provided at one end of the first bracket away from the mounting base, and a first adjustment power member for providing power for the rotation of the first adjustment shaft is provided on the first bracket; The vertical adjustment assembly includes: a second bracket fixedly connected to the first adjustment shaft, the second bracket is provided with a second adjustment shaft for controlling the vertical rotation of the incident wind speed sensor, the incident wind speed sensor is fixedly connected to the second adjustment shaft, and the second bracket is provided with a second adjustment power member for providing power for the rotation of the second adjustment shaft.

3. The full-section scanning wind measurement system for an arched tunnel according to claim 2, characterized in that: The capture module includes an image capture unit, a position recognition unit and a signal processing unit; The image capturing unit is provided at the end of the first bracket, the position identifying unit is provided on the incident wind speed sensor, and the signal processing unit is provided on the mounting base; The image capture unit provided on the first column assembly is used to capture the position identification unit on the second column assembly, and the image capture unit provided on the second column assembly is used to capture the position identification unit on the first column assembly. The signal processing unit is used to receive the image information captured by the image capture unit and send an action signal to the adjustment module.

4. The full-section scanning wind measurement system for an arched tunnel according to claim 3, characterized in that: The signal processing unit includes an image storage node, an image comparison and analysis node, an action signal generation node and a timing node; The image storage node is used to store image information captured by the image capture unit when self-alignment is completed for the first time; The image comparison and analysis node is used to call the image information of the image storage node and the real-time image information of the image capture unit, and perform angle difference analysis of the position recognition unit, and send a corresponding signal to the action signal generation node according to the analysis result; The action signal generating node is used to receive the signal sent by the image comparison and analysis node and send a corresponding action signal to the adjustment module; The timing node performs time stamping on image information collected by the image collection units provided on the first column assembly and the second column assembly.

5. The arched tunnel full-section scanning wind measurement system according to claim 1, characterized in that: The power assembly includes a sliding track, a first steel wire rope, a second steel wire rope, a power cylinder, a pulley block and a fixed seat; The sliding track is arranged along the length direction of the sliding cavity, passing through the arch top, the first column assembly and the second column assembly, and the mounting seat and the sliding track are slidingly connected via a sliding wheel; The pulley assembly includes a power fixed pulley arranged at the end of the telescopic rod of the power cylinder, an end fixed pulley arranged at the ground end of the sliding cavity and the center end of the arch, and a plurality of direction-changing fixed pulleys arranged between the end fixed pulleys in the sliding cavity for changing the direction of the first steel wire and the second steel wire; One end of the first steel wire rope is fixedly arranged on the inner wall of the sliding cavity above the power fixed pulley, and the other end of the first steel wire rope passes under the power fixed pulley and over the end fixed pulley located at the top end of the sliding cavity arch and is fixedly connected to the mounting seat; One end of the second steel wire rope is fixedly connected to the fixing seat, and the other end of the second steel wire rope is passed over the power fixed pulley and under the direction-changing fixed pulley located at the lower end of the sliding cavity and then fixedly connected to the mounting seat; The first steel rope and the second steel rope are both deflected by a plurality of deflection fixed pulleys when being routed, so that the first steel rope and the second steel rope are located in the sliding cavity and do not affect the movement of the mounting seat on the sliding track.

6. The arched tunnel full-section scanning wind measurement system according to claim 1, characterized in that: The power assembly includes a flexible track, a sliding wheel, and a drive motor; The flexible track is arranged along the length direction of the sliding cavity, passing through the arch top, the first column assembly and the second column assembly, and a fixing frame for fixing the flexible track is provided in the sliding cavity; The sliding wheels are arranged on the side of the mounting seat facing the flexible track, and each two sliding wheels form a group to relatively clamp the flexible track. The mounting seat is rotatably connected to the sliding wheels. The sliding wheels are arranged along the length direction of the flexible track, and the number of groups is greater than 2; The driving motor is arranged on the mounting group adjacent to the sliding wheels, and is used to drive one group of sliding wheels to rotate so as to drive the mounting seat to move along the flexible track.

7. The arched tunnel full-section scanning wind measurement system according to claim 1, characterized in that: The power assembly includes a rack track, a power gear and a power motor; The rack track is arranged along the length direction of the sliding cavity, and the rack surface of the rack track is arranged toward one side of the mounting seat, and the mounting seat is slidingly connected to the non-rack surface of the rack track; The power gear is arranged on a side of the mounting base facing the rack track, and the power gear is meshed with the rack surface of the rack track; The power motor is fixedly arranged on the mounting seat and is used to drive the rack to rotate, and the two power motors on the two mounting seats are electrically connected to a controller for controlling the two power motors to work synchronously.

8. A method for testing an arched tunnel full-section scanning wind measurement system, characterized in that: The method of using a full-section scanning wind measurement system for an arched tunnel according to any one of claims 1 to 7 comprises the following steps: S1. Select the correct location for track assembly installation and establish a full-section scanning wind measurement system for the arched tunnel; S2, starting the adjustment module and the capture module of the self-alignment system to control the through-beam wind speed sensor on the first column assembly and the through-beam wind speed sensor on the second column assembly to perform an alignment operation; S3, controlling the through-beam wind speed sensor on the first column assembly and the through-beam wind speed sensor on the second column assembly to move synchronously along the track assembly through the control component to perform a wind speed scanning operation on the arched tunnel section; S4. After the scanning is completed, the control component controls the through-beam wind speed sensor on the first column assembly and the through-beam wind speed sensor on the second column assembly to move synchronously to the top of the arched tunnel and then stop working, thereby completing the scanning operation.

9. The method for testing an arched tunnel full-section scanning wind measurement system according to claim 8, characterized in that: In S1, the installation positions of the first column assembly and the second column assembly are selected as the flat areas on both sides of the ventilation tunnel, and the installation positions are 3-4m away from the corners and the dampers. The first column assembly and the second column assembly are both provided with a reserved distance from the tunnel top wall and the ground, and the reserved distance is adjusted according to the on-site conditions.

10. The method for testing an arched tunnel full-section scanning wind measurement system according to claim 8, characterized in that: The S2 specifically includes the following steps: S21: The image acquisition units on the first column assembly and the second column assembly each acquire image information from the position recognition unit on the other side for the first time, and directly send the image information to the image comparison and analysis node in the signal processing unit for angle difference calculation and analysis. Based on the analysis results, a horizontal angle adjustment signal is output to the first adjustment motor of the adjustment module, and a vertical angle adjustment signal is sent to the second adjustment motor of the adjustment module. S22, the image storage node stores the analyzed image and provides the image comparison and analysis node with the image for image call in the subsequent image comparison and analysis process; S23. After completing step S21, the image storage node simultaneously calls the latest stored image of the image storage node and the real-time image collected by the image acquisition unit for comparative analysis, and sends a signal to the action signal generating node based on the analysis result; S24 , after receiving the signal from the image acquisition and analysis unit, the action generating node sends a corresponding action signal to the adjustment module, including a stop signal, a forward adjustment signal, and a reverse adjustment signal.

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