A composite tunnel face state monitoring device

Abstract

This application discloses a composite tunnel face condition monitoring device, comprising a support frame with a housing mounted on it. A control board and multiple laser emitters are located in the center of the housing. The laser emitters emit structured light. A first camera and a second camera are respectively positioned on opposite sides of the housing to capture the position of the structured light. A third camera and a fourth camera are also respectively positioned on opposite sides of the housing. The third camera captures the construction process at the tunnel face, and the fourth camera captures thermal images of the tunnel face. All laser emitters, first, second, third, and fourth cameras are electrically connected to the control board. This application can provide comprehensive, accurate, and real-time tunnel face condition information for tunnel construction, ensuring the safety and quality of tunnel construction.

Description

Technical Field

[0001] This application relates to the field of tunnel monitoring technology, and in particular to a composite tunnel face condition monitoring device. Background Technology

[0002] In tunnel construction, the tunnel face, as the front line of tunnel excavation, directly affects the safety, progress, and quality of construction. Accurate and real-time monitoring of information at the tunnel face is crucial for preventing disasters such as collapses and water inrushes, optimizing construction parameters, and ensuring project quality.

[0003] With the development of optical technology, structured light-based monitoring methods are gradually being applied to tunnel face monitoring. Structured light technology uses a laser emitter to project light of a specific pattern onto the tunnel face, and then uses a camera to collect the deformation information of the reflected light, thereby calculating the three-dimensional shape of the tunnel face. However, most existing structured light-based monitoring devices have limited functionality, only able to acquire the geometric shape information of the tunnel face. They cannot effectively monitor other state parameters of the tunnel face, and therefore cannot provide complete and accurate information about the tunnel face's condition. Utility Model Content

[0004] The main technical problem addressed by this application is to provide a composite tunnel face condition monitoring device, which solves the problem that existing monitoring devices have limited functionality and cannot provide complete and accurate tunnel face condition information.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a composite tunnel face condition monitoring device, including a support frame, a housing mounted on the support frame, a control board and multiple laser emitters disposed in the center of the housing, the laser emitters being used to emit structured light, a first camera and a second camera respectively disposed on both sides of the housing, the first and second cameras being used to acquire the position of the structured light, a third camera and a fourth camera respectively disposed on both sides of the housing, the third camera being used to acquire the construction process of the tunnel face, and the fourth camera being used to acquire the thermal image of the tunnel face, the laser emitters, the first camera, the second camera, the third camera and the fourth camera are all electrically connected to the control board.

[0006] In some embodiments, the bracket includes a fixed plate and a base. A latching plate extends outward from the front surface of the fixed plate. The latching plate has a latching opening. The latching plate and the fixed plate enclose each other to form a latching groove. The base includes a latching part and an extension part. The latching part is adapted to the latching groove. The width of the extension part is adapted to the width of the latching opening. The latching part is engaged in the latching groove. The extension part is engaged at the latching opening and extends outward.

[0007] In some embodiments, the outer end of the base is provided with a first adjusting seat, which is connected to the housing; the bottom of the first adjusting seat is provided with a first connecting hole, and the outer end of the base is provided with arc-shaped holes at intervals, the first connecting hole and the arc-shaped holes are corresponding to each other, and a first connecting member is inserted into the first connecting hole and the arc-shaped holes, the first connecting member being used to lock the first adjusting seat and the base.

[0008] In some embodiments, the first adjusting seat includes a fixing block and a corner platform. The fixing block is connected to the base, the corner platform is disposed on the fixing block, the guide rail of the corner platform is arranged longitudinally, and the housing is disposed on the corner platform.

[0009] In some embodiments, a rangefinder is further provided on the upper end face of the housing, the rangefinder being used to measure the distance between the monitoring device and the working face.

[0010] In some embodiments, a second adjustment seat is provided on the upper end face of the housing, and the rangefinder is mounted on the second adjustment seat, which is used to adjust the angle of the rangefinder.

[0011] In some embodiments, the second adjustment seat includes a support plate and an adjustment plate. The support plate is disposed on the upper end face of the housing. The rear end of the adjustment plate is hinged to the rear end of the support plate. The support plate has first strip-shaped holes arranged laterally on both sides. The first strip-shaped holes are used to adjust the angle of the rangefinder in the horizontal direction. Adjustment portions extend upward from both sides of the support plate. The adjustment portions have second strip-shaped holes arranged vertically on them. The second strip-shaped holes are used to adjust the angle of the rangefinder in the vertical direction. Connecting portions extend downward from both sides of the adjustment plate. The connecting portions have second connecting holes. Second connecting members are disposed in the second connecting holes and the second strip-shaped holes. The second connecting members are used to lock the support plate and the adjustment plate.

[0012] In some embodiments, an antenna is provided inside the third camera, the antenna extends out of the housing, the antenna is electrically connected to the control board, and the antenna is used to increase the signals received and transmitted by the control board.

[0013] In some embodiments, a temperature and humidity sensor is disposed on the inner side of the third camera, the temperature and humidity sensor being electrically connected to the control board, and the temperature and humidity sensor being used to detect the temperature and humidity inside the tunnel.

[0014] In some embodiments, the first and second cameras are infrared cameras, the third camera is a color camera, and the fourth camera is a thermal imaging camera.

[0015] The beneficial effects of this application are as follows: This application enables comprehensive monitoring of multi-dimensional state parameters of the tunnel face. By emitting structured light through multiple laser emitters and collecting the position information of the structured light by the first and second cameras, the three-dimensional geometry of the tunnel face can be accurately obtained, providing crucial data for assessing the stability of the tunnel face and determining whether deformation exists. The third camera collects data on the construction process at the tunnel face. The fourth camera collects thermal images of the tunnel face, which can be used to determine whether there is water seepage and cracks at the tunnel face, allowing for the timely detection of potential geological problems and providing additional protection for construction safety. This application can provide comprehensive, accurate, and real-time information on the tunnel face status for tunnel construction, ensuring the safety and quality of tunnel construction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a structure according to an embodiment of this application;

[0017] Figure 2 This is an exploded structural diagram according to an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the exploded structure from the rear of an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the structure of a support according to an embodiment of this application;

[0020] Figure 5 This is an exploded structural diagram of the second adjusting seat according to an embodiment of this application. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0025] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0026] For the description of this application, the terms used are not limiting. Figure 1 The labels “front,” “back,” “up,” “down,” “left,” and “right” shown are used to facilitate understanding of this embodiment and are not intended to limit this application. Specifically, front-back indicates longitudinal direction, left-right indicates lateral direction, and up-down indicates vertical direction.

[0027] Figures 1-5 This illustration shows an embodiment of a composite tunnel face condition monitoring device according to this application. It includes a support 1, a housing 2 mounted on the support 1, a control board 3 and multiple laser emitters 4 disposed in the center of the housing 2, the laser emitters 4 emitting structured light. A first camera 10 and a second camera 20 are respectively disposed on both sides of the housing 2, used to acquire the position of the structured light. A third camera 30 and a fourth camera 40 are also respectively disposed on both sides of the housing 2, the third camera 30 acquiring the shape of the tunnel face, and the fourth camera 40 acquiring a thermal image of the tunnel face. The laser emitters 4, the first camera 10, the second camera 20, the third camera 30, and the fourth camera 40 are all electrically connected to the control board 3.

[0028] This application enables comprehensive monitoring of multi-dimensional state parameters of the tunnel face. Multiple laser emitters 4 emit structured light, and the first camera 10 and second camera 20 collect the position information of the structured light, accurately acquiring the three-dimensional geometry of the tunnel face. This provides crucial data for assessing the stability of the tunnel face and determining the presence of deformation. A third camera 30 captures images of the construction site inside the tunnel, recording relevant construction procedures based on feature labeling algorithms and other methods, monitoring the construction status and ensuring the correctness and completeness of procedures. A fourth camera 40 captures thermal images of the tunnel face, enabling the determination of water seepage and cracks, allowing for the timely detection of potential geological problems and providing additional assurance for construction safety. This application provides comprehensive, accurate, and real-time information on the tunnel face status, ensuring the safety and quality of tunnel construction.

[0029] In some embodiments, the housing 2 includes an outer shell 21 and a base plate 22, which enclose a receiving space. Within this space are arranged structures such as a control board 3, a laser emitter 4, a first camera 10, a second camera 20, a third camera 30, and a fourth camera 40. The control board 3 is used to control the operation of the laser emitter 4, the first camera 10, the second camera 20, the third camera 30, and the fourth camera 40, which can be conventionally configured by those skilled in the art.

[0030] In some embodiments, such as Figure 4 As shown, the bracket 1 includes a fixing plate 11 and a base 12. The rear surface of the fixing plate 11 can be fixed to the inner wall of the tunnel or a support frame. A retaining plate 111 extends outward from the front surface of the fixing plate 11. Screws can be installed on the retaining plate 111 to fix the base 12 to the fixing plate 11. The retaining plate 111 has a latch 112, and the retaining plate 111 and the fixing plate 11 form a latching groove 113. The base 12 includes a latching part 121 and an extension part 122. The latching part 121 is adapted to the latching groove 113, and the width of the extension part 122 is adapted to the width of the latch 112. The latching part 121 is engaged in the latching groove 113, and the extension part 122 is engaged in the latch 112 and extends outward. The base 12 can be easily inserted into the latching groove 113 through the latching part 121, thereby improving the installation efficiency of the bracket 1 and facilitating the disassembly of the base 12.

[0031] In some embodiments, such as Figure 1 and Figure 4As shown, a first adjusting seat 13 is provided at the outer end of the base 12, and the first adjusting seat 13 is connected to the housing 2. A first connecting hole 131 is provided at the bottom of the first adjusting seat 13, and arc-shaped holes 123 are provided at intervals at the outer end of the base 12. The first connecting hole 131 corresponds to the arc-shaped holes 123. A first connecting member (not shown in the figure) can be inserted into the first connecting hole 131 and the arc-shaped holes 123. The first connecting member can lock the first adjusting seat 13 and the base 12. The first connecting member can be a bolt, pin, etc. The arc-shaped hole 123 at the outer end of the base 12 allows the position of the first connecting member at the arc-shaped hole 123 to be adjusted, thereby allowing the first adjusting seat 13 to rotate around its vertical axis, and thus adjusting the tilt angle of the housing 2 in the horizontal direction.

[0032] In some embodiments, the first adjusting seat 13 includes a fixing block 132 and a corner platform 133. The fixing block 132 is connected to the base 12 and is used to adjust the height of the housing 2. The corner platform 133 is disposed on the fixing block 132. The housing 2 is disposed on the corner platform 133, and the guide rail 134 of the corner platform 133 is longitudinally arranged, thereby adjusting the tilt angle of the housing 2 in the vertical direction. The corner platform 133 can be an electrically operated corner platform or a manually operated corner platform.

[0033] In some embodiments, a control panel 3 is provided on the lower side of the middle part of the housing 2. A control key 31 and a display screen 32 are provided on the front panel of the control panel 3. A control button 23 corresponding to the control key 31 and a transparent plate 24 corresponding to the display screen 32 are provided on the outer side of the housing 2.

[0034] In some embodiments, a laser emitter 4 is provided on the upper side of the middle part of the control board 3. There are three laser emitters 4, which can emit horizontal lasers, vertical lasers, or grid lasers, respectively.

[0035] In some embodiments, a first camera 10 is disposed on the lower left side of the housing 2, and a second camera 20 is disposed on the lower right side of the housing 2. The first camera 10 and the second camera 20 are infrared cameras, ultra-low light cameras, or starlight-level cameras, etc. The first camera 10 and the second camera 20 can capture images of the structured light emitted by the laser emitter 4 to accurately determine the position of the structured light projected onto the working face, thereby enabling accurate measurement of the working face. The images captured by the first camera 10 and the second camera 20 can be compared to ensure the accuracy of the measurement.

[0036] In some embodiments, a fourth camera 40 is disposed on the upper side of the first camera 10. The fourth camera 40 is a thermal imaging camera, which can acquire thermal images of the working face. The thermal images can be used to analyze whether there is water seepage and cracks on the working face, thereby improving the diversity of working face detection.

[0037] In some embodiments, a third camera 30 is disposed on the upper side of the second camera 20. The third camera 30 is a color camera. The third camera 30 collects pictures of the construction site inside the tunnel, and records relevant construction procedures based on feature labeling algorithms and other methods, and monitors the construction status and whether the procedures are correct or omitted.

[0038] In some embodiments, a rangefinder 5 is also provided on the upper end face of the housing 2. The rangefinder 5 can be a laser rangefinder 5, an ultrasonic rangefinder 5, or an infrared rangefinder 5. Two rangefinders 5 are provided. The rangefinders 5 are used to measure the distance between the monitoring device and the tunnel face. This allows for accurate determination of the tunnel excavation progress and the determination of whether there is over-excavation or under-excavation at the tunnel face based on the distance between the monitoring device and the tunnel face.

[0039] In some embodiments, a second adjusting seat 6 is provided on the upper end surface of the housing 2, and the rangefinder 5 is mounted on the second adjusting seat 6. The second adjusting seat 6 is used to adjust the tilt angle of the rangefinder 5 in the vertical direction. The second adjusting seat 6 can also be an angle platform 133.

[0040] In some embodiments, such as Figure 5 As shown, the second adjustment seat 6 includes a support plate 62 and an adjustment plate 61. The support plate 62 is disposed on the upper end face of the housing 2. The rear end of the adjustment plate 61 is hinged to the rear end of the support plate 62. The support plate 62 has first strip holes 623 arranged laterally on both sides. The first strip holes 623 are used to adjust the angle of the rangefinder 5 in the horizontal direction. Bolts can be installed in the first strip holes 623 to fix the support plate 62 to the housing 2. After the bolts are loosened, the support plate 62 can be rotated relative to the vertical axis of the housing 2, thereby adjusting the angle of the rangefinder 5 in the horizontal direction. The support plate 62 has upward-extending adjustment portions 621 on both sides. Each adjustment portion 621 has a vertically arranged second strip-shaped hole 622 for adjusting the vertical angle of the rangefinder 5. The adjustment plate 61 has downward-extending connecting portions 611 on both sides. Each connecting portion 611 has a second connecting hole 612. A second connecting member (not shown in the figure) is disposed within the second connecting hole 612 and the second strip-shaped hole 622. The second connecting member is used to lock the support plate 62 and the adjustment plate 61 together. The second connecting member can be a bolt or a pin, etc. Adjusting the position of the second connecting member within the second strip-shaped hole 622 adjusts the vertical tilt angle of the adjustment plate 61, thereby adjusting the vertical tilt angle of the rangefinder 5.

[0041] In some embodiments, an antenna 7 is provided on the inner side of the third camera 30, the antenna 7 extends out of the housing 2, the antenna 7 is electrically connected to the control board 3, and the antenna 7 is used to increase the signals received and transmitted by the control board 3.

[0042] In some embodiments, a temperature and humidity sensor 8 is also provided on the inner side of the third camera 30. The temperature and humidity sensor 8 is electrically connected to the control board 3. The temperature and humidity sensor 8 is used to detect the temperature and humidity inside the tunnel, thereby enabling the construction process to be determined based on the temperature and humidity inside the tunnel.

[0043] Therefore, this application discloses a composite tunnel face condition monitoring device, which can comprehensively monitor multi-dimensional state parameters of the tunnel face. By emitting structured light through multiple laser emitters and collecting the position information of the structured light by a first and second camera, the three-dimensional geometry of the tunnel face can be accurately obtained, providing crucial data for assessing the stability of the tunnel face and determining whether deformation exists. A third camera collects the construction process data of the tunnel face. A fourth camera collects thermal images of the tunnel face, which can be used to determine whether there is water seepage and cracks, allowing for the timely detection of potential geological problems and providing additional protection for construction safety. This application can provide comprehensive, accurate, and real-time tunnel face condition information for tunnel construction, ensuring the safety and quality of tunnel construction.

[0044] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A composite tunnel face condition monitoring device, characterized in that, The device includes a support frame with a housing. A control board and multiple laser emitters are located in the center of the housing. The laser emitters emit structured light. A first camera and a second camera are respectively located on opposite sides of the housing, used to capture the position of the structured light. A third camera and a fourth camera are also respectively located on opposite sides of the housing. The third camera captures the construction process at the working face, and the fourth camera captures a thermal image of the working face. The laser emitters, the first camera, the second camera, the third camera, and the fourth camera are all electrically connected to the control board.

2. The composite tunnel face condition monitoring device according to claim 1, characterized in that, The bracket includes a fixed plate and a base. A latching plate extends outward from the front surface of the fixed plate. The latching plate has a latching opening. The latching plate and the fixed plate are surrounded to form a latching groove. The base includes a latching part and an extension part. The latching part is adapted to the latching groove. The width of the extension part is adapted to the width of the latching opening. The latching part is engaged in the latching groove. The extension part is engaged at the latching opening and extends outward.

3. The composite tunnel face condition monitoring device according to claim 2, characterized in that, The outer end of the base is provided with a first adjustment seat, which is connected to the housing; the bottom of the first adjustment seat is provided with a first connecting hole, and the outer end of the base is provided with arc-shaped holes at intervals. The first connecting hole corresponds to the arc-shaped holes, and a first connector is inserted into the first connecting hole and the arc-shaped holes. The first connector is used to lock the first adjustment seat and the base.

4. The composite tunnel face condition monitoring device according to claim 3, characterized in that, The first adjusting seat includes a fixed block and a corner platform. The fixed block is connected to the base, the corner platform is disposed on the fixed block, the guide rail of the corner platform is arranged longitudinally, and the housing is disposed on the corner platform.

5. The composite tunnel face condition monitoring device according to claim 1, characterized in that, The upper surface of the housing is also provided with a rangefinder, which is used to measure the distance between the monitoring device and the working face.

6. The composite tunnel face condition monitoring device according to claim 5, characterized in that, The upper end face of the housing is provided with a second adjustment seat, and the rangefinder is mounted on the second adjustment seat. The second adjustment seat is used to adjust the angle of the rangefinder.

7. The composite tunnel face condition monitoring device according to claim 6, characterized in that, The second adjustment seat includes a support plate and an adjustment plate. The support plate is disposed on the upper end face of the housing. The rear end of the adjustment plate is hinged to the rear end of the support plate. The support plate has first strip-shaped holes arranged laterally on both sides. The first strip-shaped holes are used to adjust the angle of the rangefinder in the horizontal direction. The support plate has adjustment parts extending upward from both sides. The adjustment parts have second strip-shaped holes arranged vertically on them. The second strip-shaped holes are used to adjust the angle of the rangefinder in the vertical direction. The adjustment plate has connecting parts extending downward from both sides. The connecting parts have second connecting holes. The second connecting holes and the second strip-shaped holes are provided with second connecting members. The second connecting members are used to lock the support plate and the adjustment plate.

8. The composite tunnel face condition monitoring device according to claim 1, characterized in that, An antenna is provided on the inner side of the third camera, the antenna extends out of the housing, the antenna is electrically connected to the control board, and the antenna is used to increase the signals received and transmitted by the control board.

9. The composite tunnel face condition monitoring device according to claim 1, characterized in that, A temperature and humidity sensor is installed on the inner side of the third camera. The temperature and humidity sensor is electrically connected to the control board and is used to detect the temperature and humidity inside the tunnel.

10. The composite tunnel face condition monitoring device according to claim 1, characterized in that, The first and second cameras are infrared cameras, the third camera is a color camera, and the fourth camera is a thermal imaging camera.

Images