Automatic monitoring and early warning device for construction deformation of ultra-small clear distance stacked tunnel

Abstract

The invention relates to the technical field of tunnel deformation monitoring and early warning, and discloses an automatic monitoring and early warning device for ultra-small clear distance stacked tunnel construction deformation, which comprises a data acquisition module, a data processing module and an early warning module which are connected in sequence, the data acquisition module comprises a mounting bracket, a machine vision sensor and a monitoring target, the data processing module comprises a data processor I, a data processor II and a data memory which are electrically connected in sequence, the data processor I is electrically connected with the machine vision sensor, and the early warning module comprises an alarm electrically connected with the data processor II; the machine vision sensor comprises a sensor shell and a CCD camera, the CCD camera is arranged in the sensor shell, and the CCD camera and the sensor shell are connected through a plurality of air springs. The service life of the damping structure of the equipment can be effectively prolonged, the damping effect of the damping structure of the equipment can be effectively improved, real-time monitoring of deformation of the pre-built tunnel of the stacked tunnel is achieved, and meanwhile an alarm is given when the threshold value requirement is not met.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel deformation monitoring and early warning, and more specifically to an automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction. Background Art

[0002] The later-built tunnel of the ultra-small clearance overlapping tunnel construction has a great impact on the earlier-built tunnel, and the earlier-built tunnel needs to be monitored in real time. The commonly used tunnel deformation monitoring methods are mainly total station method, displacement sensor method, pipeline method, etc. Among them, the total station method requires manual regular measurement, which is inefficient. The pipeline method is only applicable to short tunnels and has low measurement accuracy. Although the displacement sensor method can monitor the tunnel in real time, it may be affected by wear, pollution or environmental factors, resulting in performance degradation. At present, some tunnels use machine vision sensors for deformation monitoring, but close construction (close construction refers to the construction of new tunnels crossing or adjacent to existing underground pipelines, transportation facilities, and buildings (structures)) has a large vibration effect on the earlier-built tunnel, which has a great impact on the monitoring stability and reliability of the equipment, but the existing equipment shock-absorbing structure has a low service life and poor shock-absorbing effect. At the same time, the commonly used monitoring methods require manual data processing to determine whether the tunnel deformation is reasonable, so as to take corresponding measures, and lack an automated early warning module. Summary of the invention

[0003] In view of this, the present invention provides an automated monitoring and early warning device for deformation during construction of ultra-small clearance stacked tunnels, which can effectively improve the service life and shock absorption effect of the equipment's shock-absorbing structure, realize real-time monitoring of the deformation of the first tunnel of the stacked tunnel, and issue an alarm when the threshold requirements are not met.

[0004] To achieve the above-mentioned purpose, the present invention provides an automatic monitoring and early warning device for deformation of ultra-small clearance stacked tunnel construction, comprising a data acquisition module, a data processing module and an early warning module connected in sequence; The data acquisition module includes a mounting bracket, a machine vision sensor and a monitoring target, wherein the machine vision sensor is mounted on the mounting bracket, and the monitoring target is arranged on the inner peripheral wall of the tunnel; The data processing module includes a data processor I, a data processor II and a data storage device which are electrically connected in sequence, wherein the data processor I is electrically connected to the machine vision sensor, the data processor I calculates the monitoring data obtained by the data acquisition module to obtain deformation data, and transmits the obtained deformation data to the data processor II for comparison and judgment, and the data storage device is used to store the data processed by the data processor II in real time; The early warning module includes an alarm electrically connected to the data processor II, and the alarm issues an early warning based on the comparison and judgment result of the data processor II; The machine vision sensor comprises a sensor housing and a CCD camera. The CCD camera is arranged inside the sensor housing and the two are connected via a plurality of air springs.

[0005] Preferably, the mounting bracket comprises a pad, a rotating shaft and a support rod, the mounting bracket is installed on the ground in the tunnel through expansion bolts and nuts, and the support rod is rotatably disposed on the pad through the rotating shaft.

[0006] Preferably, a gasket is provided between the nut and the expansion bolt.

[0007] Preferably, the air spring comprises a cylinder and a piston rod which are movably connected, and one end of the piston rod which is sleeved in the cylinder is provided with an end cover, a sealing ring and a dust ring, and the end cover, sealing ring and dust ring are arranged in sequence from bottom to top, and the cylinder is provided with a high-pressure air valve connected to its inner cavity, and the high-pressure air valve is used to fill the cylinder with inert compressed gas.

[0008] Preferably, the high-pressure gas valve is mounted on the cylinder via angle bolts and sealing gaskets.

[0009] Preferably, the data processing module also includes a Bluetooth module, a WiFi module or a 5G module electrically connected to the data processor II.

[0010] Preferably, there are a plurality of monitoring targets, and the CCD camera monitors a plurality of monitoring targets simultaneously to perform distortion processing on the images recorded by the monitoring targets and correct the displacement of the targets.

[0011] Preferably, the sensor housing comprises a bottom plate, a top plate and a side plate, the side plate is arranged between the bottom plate and the top plate, and the side plate is provided with heat dissipation holes.

[0012] Preferably, a lens is installed on the CCD camera.

[0013] Preferably, the alarm is powered by a battery.

[0014] It can be seen from the above technical solution that, compared with the prior art, the automated monitoring and early warning device for deformation of ultra-small clearance stacked tunnel construction provided by the present invention realizes real-time monitoring of deformation of ultra-small clearance stacked tunnel construction. At the same time, the device can realize uninterrupted real-time monitoring, and can promptly trigger the alarm device to sound an alarm when the data exceeds the specified requirements, thereby improving the service life and shock absorption effect of the equipment's shock absorption structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structural connection of the automatic monitoring and early warning device of the present invention; Figure 2 It is a schematic diagram of the structure of the automatic monitoring and early warning device of the present invention during monitoring; Figure 3 It is a structural diagram of the mounting bracket of the present invention; Figure 4 is a structural diagram of the visual sensor of the present invention; Figure 5 A top view of the visual sensor of the present invention; Figure 6 It is a structural diagram of the air spring of the present invention.

[0017] Description of reference numerals: 1-data acquisition module, 2-data processing module, 3-early warning module; 21-data processor I, 22-data processor II, 23-data storage; 100-mounting bracket, 110-backing plate, 120-gasket, 130-nut, 140-expansion bolt, 150-rotating shaft, 160-support rod; 200-machine vision sensor, 210-air spring, 211-angle bolt, 212-sealing gasket, 213-high-pressure air valve, 214-cylinder, 215-end cover, 216-sealing ring, 217-dust ring, 218-piston rod, 220-sensor housing, 221-bottom plate, 222-top plate, 223-side plate, 224-heat dissipation hole, 230-CCD camera, 240-lens; 300-monitoring target, 400-alarm. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following describes the embodiments of the present invention by specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and embodiments can be combined with each other without conflict.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the present invention should be pointed out that, in the present invention, unless the specific structure, connection relationship, positional relationship, power source relationship, etc. are specifically written out, the structure, connection relationship, positional relationship, power source relationship, etc. involved in the present invention are all known by those skilled in the art on the basis of the prior art without creative work.

[0024] Please see attached Figure 1-6 , which is an automated monitoring and early warning device for deformation of ultra-small clearance stacked tunnel construction disclosed in the present invention.

[0025] like Figure 1 As shown, the automatic monitoring and early warning device for deformation of ultra-small clearance stacked tunnel construction provided by the present invention includes a data acquisition module 1, a data processing module 2 and an early warning module 3 connected in sequence, the data processing module 2 includes a data processor I 21, a data processor II 22 and a data storage device 23 which are electrically connected, the early warning module 3 includes an alarm 400, which is powered by a battery, and alarms or warns based on the data measured by the data acquisition module 1 and the deformation data processed by the data processing module 2, and the comparison and judgment results of the data processor II 22.

[0026] like Figure 2-3 As shown, the data acquisition module 1 includes a mounting bracket 100 , a machine vision sensor 200 and a monitoring target 300 , and the mounting bracket 100 includes a backing plate 110 , a gasket 120 , a nut 130 , an expansion bolt 140 , a rotating shaft 150 and a support rod 160 .

[0027] The mounting bracket 100 is installed on the ground in the tunnel through expansion bolts 140 and nuts 130, and a gasket 120 is installed between the nuts 130 and the expansion bolts 140. The support rod 160 is rotatably set on the pad 110 through the rotating shaft 150. The support rod 160 is adjusted in height and angle by the rotating shaft 150. The machine vision sensor 200 is installed on the mounting bracket 100, and the monitoring target 300 is set on the inner wall of the tunnel. Several monitoring targets 300 are provided to monitor different positions and different angles.

[0028] Specifically, the expansion bolts 140 are installed by drilling holes in the ground at the installation position of the machine vision sensor 200, the backing plate 110 is placed into the exposed expansion bolts 140, the gasket 120 is placed, and then each nut 130 is installed and tightened.

[0029] It should be noted that the data processor I 21 is electrically connected to the machine vision sensor 200, the data processor I 21 calculates the monitoring data obtained by the data acquisition module 1 to obtain deformation data, and transmits the obtained deformation data to the data processor II 22 for comparison and judgment, and the data storage 23 completes the storage of various data processed in real time by the data processor II 22; like Figure 4-5 As shown, the machine vision sensor 200 includes an air spring 210 , a sensor housing 220 , a CCD camera 230 and a lens 240 .

[0030] The CCD camera 230 is disposed inside the sensor housing 220 and the two are connected via a plurality of air springs 210 . The air springs 210 are connected to the sensor housing 220 and the CCD camera 230 . In the present embodiment, there are ten air springs 210 to achieve shock absorption in three directions in space. The lens 240 is mounted on the CCD camera 230 .

[0031] The CCD camera 230 can be connected to and monitor multiple monitoring targets 300 at the same time. The CCD camera 230 performs distortion processing on the recorded images of the monitoring targets 300 to correct the displacement of the targets.

[0032] The sensor housing 220 includes a bottom plate 221 , a top plate 222 , and a side plate 223 . The side plate 223 is disposed between the bottom plate 221 and the top plate 222 . A heat dissipation hole 224 is disposed on the side plate 223 .

[0033] like Figure 6 As shown, the air spring 210 includes an angle bolt 211 , a sealing gasket 212 , a high-pressure air valve 213 , a cylinder 214 , an end cover 215 , a sealing ring 216 , a dust ring 217 and a piston rod 218 .

[0034] The piston rod 218 is inserted into the cylinder 214 to form a movable connection. One end of the piston rod 218 inserted into the cylinder 214 is provided with a dust ring 217, a sealing ring 216 and an end cover 215 from top to bottom. The cylinder 214 is provided with a high-pressure gas valve 213 connected to its inner cavity. The high-pressure gas valve 213 is installed on the cylinder 214 by an angle bolt 211 and a sealing gasket 212.

[0035] Inert compressed gas is filled into the cylinder 214 through the high-pressure gas valve 213, and the piston rod 218 performs work to achieve a shock-absorbing effect, thereby effectively solving the problems of short service life and poor shock-absorbing effect of the coil spring in the prior art.

[0036] The data processing module 2 also includes a Bluetooth module, a WiFi module and a 5G module electrically connected to the data processor II 22 to transmit the monitored and processed data to other terminal devices.

[0037] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic monitoring and early warning device for deformation of ultra-small clearance stacked tunnel construction, characterized in that: It comprises a data acquisition module (1), a data processing module (2) and an early warning module (3) which are connected in sequence; The data acquisition module (1) comprises a mounting bracket (100), a machine vision sensor (200) and a monitoring target (300), wherein the machine vision sensor (200) is mounted on the mounting bracket (100), and the monitoring target (300) is arranged on the inner peripheral wall of the tunnel; The data processing module (2) comprises a data processor I (21), a data processor II (22) and a data storage device (23) which are electrically connected in sequence, the data processor I (21) being electrically connected to the machine vision sensor (200), the data processor I (21) calculating the monitoring data obtained by the data acquisition module (1) to obtain deformation data, and transmitting the obtained deformation data to the data processor II (22) for comparison and judgment, and the data storage device (23) being used to store the data processed in real time by the data processor II (22); The early warning module (3) comprises an alarm (400) electrically connected to the data processor II (22), and the alarm (400) issues an early warning based on the comparison and judgment result of the data processor II (22); The machine vision sensor (200) comprises a sensor housing (220) and a CCD camera (230); the CCD camera (230) is arranged inside the sensor housing (220) and the two are connected via a plurality of air springs (210).

2. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 1 is characterized in that: The mounting bracket (100) comprises a backing plate (110), a rotating shaft (150) and a support rod (160); the mounting bracket (100) is mounted on the ground in a tunnel via expansion bolts (140) and nuts (130); and the support rod (160) is rotatably disposed on the backing plate (110) via the rotating shaft (150).

3. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 2 is characterized in that: A gasket (120) is provided between the nut (130) and the expansion bolt (140).

4. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 1 is characterized in that: The air spring (210) comprises a cylinder (214) and a piston rod (218) which are movably connected. One end of the piston rod (218) which is sleeved in the cylinder (214) is provided with an end cover (215), a sealing ring (216) and a dust ring (217). The end cover (215), the sealing ring (216) and the dust ring (217) are arranged in sequence from bottom to top. The cylinder (214) is provided with a high-pressure gas valve (213) which is connected to its inner cavity. The high-pressure gas valve (213) is used to fill the cylinder (214) with inert compressed gas.

5. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 4 is characterized in that: The high-pressure gas valve (213) is mounted on the cylinder (214) via angle bolts (211) and sealing gaskets (212).

6. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 1 is characterized in that: The data processing module (2) further comprises a Bluetooth module, a WiFi module or a 5G module electrically connected to the data processor II (22).

7. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 1 is characterized in that: A plurality of monitoring targets (300) are provided, and the CCD camera (230) monitors a plurality of monitoring targets (300) simultaneously to perform distortion processing on images recorded by the monitoring targets (300) and correct target displacement.

8. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 1 is characterized in that: The sensor housing (220) comprises a bottom plate (221), a top plate (222) and a side plate (223); the side plate (223) is arranged between the bottom plate (221) and the top plate (222); and a heat dissipation hole (224) is provided on the side plate (223).

9. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 1 is characterized in that: A lens (240) is mounted on the CCD camera (230).

10. The automatic monitoring and early warning device for deformation of super-small clearance stacked tunnel construction according to claim 1 is characterized in that: The alarm (400) is powered by a battery.

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