Intelligent monitoring device for pier settlement in bridge construction

Abstract

The application provides a bridge pier settlement intelligent monitoring device for bridge construction, which comprises a laser collecting unit, a laser emitting unit and a matched control unit. The laser collecting unit is provided with a plurality of laser collecting units, and the laser collecting units are arranged at intervals around the bridge pier to be monitored and are each provided with a laser receiving end face arranged along a vertical direction. The laser emitting unit is provided with at least two laser emitting units, and the laser emitting units are arranged around the bridge pier to be monitored and are correspondingly arranged with the laser receiving end faces, and each laser emitting unit can emit a horizontal laser line to the corresponding laser receiving end face. The control unit can control the laser emitting unit to emit laser periodically and record the laser point position change data on the laser receiving end face. The bridge pier settlement intelligent monitoring device for bridge construction can effectively determine the settlement type, accurately monitor the settlement value, save cost and has high practicability.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction technology, specifically relating to an intelligent monitoring device for bridge pier settlement in bridge construction. Background Technology

[0002] A bridge is generally a structure erected across rivers, lakes, seas, mountains, or challenging geological conditions to facilitate passage for vehicles and pedestrians. A bridge typically consists of a superstructure, substructure, supports, and ancillary structures. The superstructure, also known as the bridge span structure, is the main structure that crosses obstacles, while the substructure includes abutments, piers, and foundations. During bridge construction, various parameters are periodically monitored, including settlement monitoring (during the period after pier pouring and before superstructure installation). Settlement monitoring primarily targets the substructure, but since usually only the piers are exposed above ground, settlement monitoring is usually conducted on the piers.

[0003] In existing technologies, monitoring the settlement of bridge piers typically involves fixing a vertically positioned laser receiver (laser target) on the pier. A horizontal beam of light is projected onto the laser receiver via an external laser emitter, and the vertical displacement of the light spot on the receiver represents the settlement value. However, settlement of the substructure may involve uneven settlement, which directly causes the pier to tilt, leading to tilting of the laser receiver. In such cases, the aforementioned settlement monitoring method is ineffective in determining the type of settlement and provides inaccurate settlement measurements, resulting in poor monitoring performance and limited practicality. While increasing the number of laser receivers would increase the number of laser emitters, the placement of these emitters is inconvenient, and manufacturing costs are also high. Summary of the Invention

[0004] This invention provides an intelligent monitoring device for bridge pier settlement in bridge construction, which aims to solve the problem of poor practicality of existing bridge pier settlement monitoring methods.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A smart monitoring device for bridge pier settlement in bridge construction is provided, comprising a laser acquisition unit, a laser emission unit, and a supporting control unit; multiple laser acquisition units are provided, each laser acquisition unit being spaced apart around the pier to be monitored, and each laser acquisition unit having a laser receiving end face arranged vertically; at least two laser emission units are provided, each laser emission unit being arranged around the pier to be monitored, each laser emission unit corresponding to each laser receiving end face, and each laser emission unit emitting a horizontal laser line to the corresponding laser receiving end face;

[0006] The control unit is wirelessly connected to each of the laser acquisition units and each of the laser emission units, and is used to control the laser emission units to periodically emit lasers and record the laser point position change data on each of the laser receiving end faces.

[0007] In one possible implementation, each laser acquisition unit includes a mounting base, a fixed cylinder, a gravity component, a laser target surface, and a first wireless module; the mounting base is fixed to the side wall of the pier and has an outwardly extending cantilever end; the fixed cylinder is fixedly connected to the cantilever end and has a cylindrical cavity with an open bottom end; one end of the gravity component is located inside the cylindrical cavity and fixedly connected to the fixed cylinder, and the other end of the gravity component passes through the open end of the cylindrical cavity and extends downward; the laser target surface is fixed on the gravity component and is used to maintain a vertical state as the gravity component remains, and the laser receiving end face is located on the laser target surface; the first wireless module is electrically connected to the laser target surface and is used to transmit the laser point signal on the laser target surface to the control unit.

[0008] In one possible implementation, the gravity assembly includes a fixed ring, a first joint bearing, connecting rods, a gravity base, a rotating rod, and an adjusting structure; the fixed ring is fixed to the inner wall of the cylindrical cavity and coaxially arranged with the cylindrical cavity, and the fixed ring has an annular hole; the first joint bearing has a first outer ring and a first inner ring adapted to the first outer ring, the first outer ring is fixed at the annular hole, the first inner ring is rotatably connected to the first outer ring, and the first inner ring has a transition hole; at least two connecting rods are provided, and the two connecting rods are circumferentially spaced around the axis of the transition hole. The system is configured such that one end of each connecting rod is fixedly connected to the first inner ring, and the other end extends along the axial direction of the adapter hole; the gravity base is fixedly connected to the extended end of each connecting rod; the rotating rod is arranged parallel to each connecting rod, one end of the rotating rod is rotatably connected to the adapter hole, and the other end of the adapter hole is rotatably connected to the gravity base; the laser target surface is disposed on the rotating rod; the adjustment structure is disposed on the gravity base and is poweredly connected to the rotating rod to drive the rotating rod to rotate so that the laser target surface faces the corresponding laser emitting unit.

[0009] In one possible implementation, a limiting ring is provided on the rotating rod;

[0010] The adapter hole is provided with a limiting groove for the limiting ring to rotate and connect. The limiting groove is used to limit the rotation rod in the axial direction of the adapter hole.

[0011] In one possible implementation, the adjustment structure includes a stepper motor, a ring gear, and a power gear; the stepper motor is disposed in the gravity base and has a power output end; the ring gear is fixedly sleeved on the rotating rod, and the outer edge of the ring gear extends into the gravity base; there are three power gears, which are arranged circumferentially around the axis of the rotating rod, and one of the power gears is fixedly sleeved on the power output end of the stepper motor.

[0012] In one possible implementation, the laser acquisition unit further includes a wind-resistant component, which includes a top cover, a slider, an electromagnet, a spring, a wind speed monitoring structure, and a second wireless module. The top cover is located above and fixed to the first inner ring, and has a spherical surface with an outer diameter equal to that of the first inner ring and smoothly connected to the outer wall of the first inner ring. The slider is slidably disposed in the cylindrical cavity and spaced apart from the fixed ring. The electromagnet is located between the fixed ring and the slider and is fixed to the slider, and has a spherical groove adapted to the spherical surface. The spring is disposed between the fixed ring and the slider. Between the sliders, one end of the spring abuts against the fixing ring, and the other end abuts against the slider. The spring is used to spring the slider so that the electromagnet tends to move away from the top cover. The wind speed monitoring structure is set at the top of the fixed cylinder for monitoring the wind speed. The second wireless module is electrically connected to the electromagnet and the wind speed monitoring structure, and wirelessly connected to the control unit. The second wireless module is used to control the electromagnet to be energized after the wind speed reaches a predetermined value, under the instruction of the control unit, so that the electromagnet moves closer to and abuts against the top cover with the slider, thereby fixing the position of the top cover.

[0013] In one possible implementation, the wind speed monitoring structure includes a wind cup and a rotation speed sensor; the wind cup is rotatably mounted on the top of the fixed cylinder, and its rotation axis is collinear with the axis of the fixed cylinder; the rotation speed sensor is mounted on the fixed cylinder and electrically connected to the second wireless module for monitoring the rotation speed of the wind cup.

[0014] In one possible implementation, each laser emitting unit includes a positioning base, a mounting platform, a leveling assembly, a laser emitter, a driving assembly, and a third wireless module. The positioning base has two positioning posts for insertion and fixation to the ground, and a second joint bearing is also provided on the positioning base. The second joint bearing has a second outer ring and a second inner ring adapted to the second outer ring. The mounting platform is disposed above the positioning base and connected to the second inner ring. The leveling assembly is fixed on the positioning base and abuts against the mounting platform for adjusting the levelness of the mounting platform. The laser emitter is disposed on the mounting platform for projecting laser light. The driving assembly is disposed on the mounting platform and connected to the laser emitter for driving the laser emitter to rotate so that the laser light is projected onto the corresponding laser receiving end faces. The third wireless module is wirelessly connected to the control unit and is used to control the driving assembly to rotate the laser emitter under the command of the control unit.

[0015] In one possible implementation, the leveling assembly includes three adjusting screws, each of which is arranged in a ring around the axis of the second outer ring and spaced apart. Each adjusting screw is threadedly connected to the fixed base, and the top end of the adjusting screw abuts against the mounting platform.

[0016] In one possible implementation, the drive assembly includes a servo motor, a slewing bearing, and a rotary table; the servo motor is fixed to the mounting platform, has an upwardly extending power output end, and a drive gear is provided on the power output end of the servo motor; the servo motor is electrically connected to the third wireless module; the slewing bearing has a bottom ring and a top ring, the bottom ring is fixed to the mounting platform, and the inner wall surface of the top ring has an internal tooth surface that meshes with the drive gear; the rotary table is fixed to the top ring for fixed connection of the laser emitter.

[0017] In this implementation, each laser acquisition unit can be positioned around the bridge pier, enabling multi-point monitoring of the pier and thus ensuring the determination of the pier's settlement type. The laser receiving end face on each laser acquisition unit is vertically oriented, adapting to changes in the pier's tilt angle and ensuring the accuracy of the monitoring results. Each laser emitting unit can correspond to multiple laser receiving end faces, reducing manufacturing costs and facilitating installation. The intelligent bridge pier settlement monitoring device provided by this implementation can effectively determine the settlement type, accurately monitor settlement values, save costs, and is highly practical. Attached Figure Description

[0018] Figure 1A schematic diagram illustrating the working process of the intelligent monitoring device for bridge pier settlement in an embodiment of the present invention; (dashed lines represent laser lines).

[0019] Figure 2 A top view of the working process of the intelligent monitoring device for bridge pier settlement in bridge construction provided in an embodiment of the present invention.

[0020] Figure 3 A schematic diagram of the laser receiving unit structure of the intelligent monitoring device for bridge pier settlement in bridge construction provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the main structure of the laser receiving unit of the intelligent monitoring device for bridge pier settlement in bridge construction provided in an embodiment of the present invention (the fixed cylinder is in cross-section).

[0022] Figure 5 for Figure 4 An enlarged structural diagram of point A of the intelligent monitoring device for bridge pier settlement in the embodiment (section view with springs hidden).

[0023] Figure 6 for Figure 4 A cross-sectional view of section B of the intelligent monitoring device for bridge pier settlement in the embodiment.

[0024] Figure 7 A schematic diagram of the laser emitting unit structure of the intelligent monitoring device for bridge pier settlement in bridge construction provided in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the main structure of the laser emitting unit of the intelligent monitoring device for bridge pier settlement in bridge construction provided in an embodiment of the present invention;

[0026] Figure 9 A schematic diagram of the connection structure between the slewing bearing and the servo motor of the intelligent monitoring device for bridge pier settlement in bridge construction provided in an embodiment of the present invention;

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Laser acquisition unit; 11. Mounting base; 12. Fixing cylinder; 13. Gravity component; 131. Fixing ring; 132. First joint bearing; 133. Connecting rod; 134. Gravity base; 135. Rotating rod; 136. Adjustment structure; 1361. Stepper motor; 1362. Ring gear; 1363. Power gear; 14. Laser target surface; 141. Laser receiving end face; 15. Wind-resistant component; 151. Top cover; 152. Slider; 153. Electromagnet; 154. Wind speed monitoring structure; 1541. Wind cup; 1542. Speed ​​sensor; 155. Spring; 20. Laser emitting unit; 21. Positioning base; 22. Mounting platform; 23. Leveling assembly; 231. Adjusting screw; 24. Laser emitter; 25. Drive assembly; 251. Servo motor; 252. Slewing bearing; 253. Rotary table; 254. Drive gear; 26. Second joint bearing; 30. Pier. Detailed Implementation

[0029] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0030] Please refer to the following: Figure 1 and Figure 2 The present invention will now describe the intelligent monitoring device for bridge pier settlement 30 provided by the present invention. The intelligent monitoring device for bridge pier settlement includes a laser acquisition unit 10, a laser emission unit 20, and a corresponding control unit. Multiple laser acquisition units 10 are provided, each arranged at intervals around the bridge pier 30 to be monitored. Each laser acquisition unit 10 has a laser receiving end face 141 arranged vertically. At least two laser emission units 20 are provided, each arranged around the bridge pier 30 to be monitored. Each laser emission unit corresponds to a laser receiving end face 141, and each laser emission unit 20 can emit a horizontal laser line to its corresponding laser receiving end face 141.

[0031] The control unit is wirelessly connected to each laser acquisition unit 10 and each laser emission unit 20, and can control the laser emission unit 20 to emit lasers periodically and record the laser point position change data on each laser receiving end face 141.

[0032] The intelligent monitoring device for bridge pier settlement provided in this embodiment is used as follows: First, the bridge pier 30 to be monitored is determined, and the position and height of each laser acquisition unit 10 are set according to the environment where the bridge pier 30 is located. Because this process may involve mountain streams or water surfaces, the placement of the laser emitting unit 20 and the height of the laser receiving end face 141 must be fully considered. Then, the number of laser emitting units 20 is determined according to the number of laser acquisition units 10, ensuring that each laser acquisition end face is fully covered with the minimum number of laser emitting units 20, that is, the laser emitted by each laser emitting unit 20 can cover each laser acquisition end face. After all the laser acquisition units 10 and all the laser emitting units 20 are installed, the control unit records the initial laser point position recorded on each laser receiving end face 141, and controls each laser emitter 24 to emit lasers within a fixed period, and then records the laser point position on the laser receiving end face 141 again, thus enabling settlement monitoring.

[0033] Regarding the determination of settlement type: When pier 30 experiences uniform settlement, it can only be monitored vertically. However, when pier 30 experiences uneven settlement, the laser point positions on each laser receiving end face 141 will change differently. For example, the laser points on each laser receiving end face 141 on one side of pier 30 may move downwards, while the laser points on each laser receiving end face 141 on the other side of pier 30 may move upwards, resulting in vector changes. In this case, modeling can be performed based on the data information received by the control unit to determine the settlement type and accurately monitor the settlement value.

[0034] Compared with existing technologies, the intelligent monitoring device for bridge pier settlement provided in this embodiment allows for multi-point monitoring of the pier 30 by arranging each laser acquisition unit 10 around it. This enables accurate determination of the settlement type of the pier 30. Furthermore, the laser receiving end face 141 on each laser acquisition unit 10 is vertically oriented to adapt to changes in the inclination angle of the pier 30, ensuring the accuracy of the monitoring results. Each laser emitting unit 20 can correspond to multiple laser receiving end faces 141, reducing manufacturing costs and facilitating installation. The intelligent monitoring device for bridge pier settlement provided in this embodiment effectively determines the settlement type, accurately monitors settlement values, saves costs, and is highly practical.

[0035] It should be noted that the control unit, including the controller, wireless module, and display control module, facilitates timely data processing by staff. The display control module can be a computer, capable of directly creating a 3D data model from the acquired signals. This technology is existing and will not be elaborated upon here.

[0036] In some embodiments, the laser acquisition unit 10 described above can be as follows: Figure 3 The structure shown. See also Figure 3 Each laser acquisition unit 10 includes a mounting base 11, a fixed cylinder 12, a gravity component 13, a laser target surface 14, and a first wireless module. The mounting base 11 can be fixedly mounted on the side wall of the pier 30 and has an outwardly extending cantilever end. The fixed cylinder 12 is fixedly connected to the cantilever end and has a cylindrical cavity with an open bottom. One end of the gravity component 13 is located inside the cylindrical cavity and is fixedly connected to the fixed cylinder 12, while the other end of the gravity component 13 passes through the open end of the cylindrical cavity and extends downward. The laser target surface 14 is fixed on the gravity component 13 and can maintain a vertical position continuously with the gravity component 13. The laser receiving end face 141 is located on the laser target surface 14. The first wireless module is electrically connected to the laser target surface 14 and can transmit the laser point signal on the laser target surface 14 to the control unit.

[0037] The mounting base 11 ensures stable installation on the pier 30. The cantilever end of the mounting base 11 provides space for the gravity component 13 to prevent it from impacting the pier 30. Preferably, the connection between the mounting base 11 and the pier 30 can be bolted. The fixing cylinder 12 facilitates the installation of the gravity component 13 and provides a place for the first wireless module. The gravity component 13 continuously drives the laser target surface 14, keeping it vertical. This structure ensures accurate settlement monitoring and is highly practical.

[0038] The laser target surface 14 may include an imaging target surface, an optoelectronic imaging device, and an image processing module, mainly to ensure the determination of the laser point position. This technology is existing technology and will not be described in detail here.

[0039] In some embodiments, the gravity component 13 may employ, as follows: Figures 4 to 6 The structure shown. See also Figures 4 to 6The gravity assembly 13 includes a fixed ring 131, a first joint bearing 132, a connecting rod 133, a gravity base 134, a rotating rod 135, and an adjusting structure 136. The fixed ring 131 is fixed to the inner wall of the cylinder cavity and coaxially arranged with the cylinder cavity, and has an annular hole. The first joint bearing 132 has a first outer ring and a first inner ring adapted to the first outer ring. The first outer ring is fixed at the annular hole, and the first inner ring is rotatably connected to the first outer ring, with a transition hole on the first inner ring. At least two connecting rods 133 are provided, arranged annularly spaced around the axis of the transition hole, with one end of each connecting rod 133 fixedly connected to the first inner ring and the other end extending along the axis of the transition hole. The gravity base 134 is fixedly connected to the extended ends of each connecting rod 133. The rotating rod 135 is arranged parallel to each connecting rod 133. One end of the rotating rod 135 is rotatably connected to the adapter hole, and the other end of the adapter hole is rotatably connected to the gravity base 134. The laser target surface 14 is mounted on the rotating rod 135. The adjusting structure 136 is mounted on the gravity base 134 and is poweredly connected to the rotating rod 135, which can drive the rotating rod 135 to rotate so that the laser target surface 14 faces the corresponding laser emitting unit 20.

[0040] The first joint bearing 132 can ensure that the connecting rod 133 and the gravity base 134 can rotate in all directions relative to the fixed cylinder 12. This structure can adapt to uneven settlement in any direction of the pier 30 and has stronger adaptability.

[0041] Because one laser emitting unit 20 corresponds to multiple laser receiving end faces 141, each laser receiving end face 141 needs to be oriented towards its corresponding laser emitting unit 20. Therefore, a rotating rod 135 and an adjusting structure 136 are provided. The adjusting structure 136 can drive the rotating rod 135 to rotate, thereby ensuring that the rotating rod 135 rotates the laser receiving end face 141 to face the corresponding laser emitting unit 20. In addition, this structure can also prevent the connecting rod 133 from blocking the laser. In the free state, when the adjusting component drives the rotating rod 135 to rotate, according to the conservation of momentum, the first inner ring, the connecting rod 133, and the gravity base 134 will rotate in opposite directions, thereby effectively preventing the connecting rod 133 from blocking the laser.

[0042] The outer edge of the fixing ring 131 can be directly integrally formed with the fixing cylinder 12.

[0043] In some embodiments, the aforementioned rotating rod 135 may be as follows: Figure 5 The structure shown. See also Figure 5 A limiting ring is provided on the rotating rod 135. A limiting groove is provided in the corresponding transition hole for the limiting ring to rotate and connect. The limiting groove can limit the rotating rod 135 in the axial direction of the transition hole. This structure can ensure that the weight of the rotating rod 135 is directly applied to the first inner ring, ensuring the stability of the rotation of the rotating rod 135.

[0044] In some embodiments, the adjustment structure 136 described above can be adopted as follows: Figure 6 The structure shown. See also Figure 6 The adjustment structure 136 includes a stepper motor 1361, a ring gear 1362, and a power gear 1363. The stepper motor 1361 is housed in the gravity base 134 and has a power output end. The ring gear 1362 is fixedly sleeved on the rotating rod 135, and its outer edge extends into the gravity base 134. Three power gears 1363 are provided, arranged annularly around the axis of the rotating rod 135, with one power gear 1363 fixedly sleeved on the power output end of the stepper motor 1361.

[0045] A single drive gear 1363 can clamp the ring gear 1362 to prevent the rotating rod 135 from deviating from the vertical direction, thereby ensuring the verticality of the laser receiving end face 141. The stepper motor 1361 can drive one of the drive gears 1363, which can drive the rotation of the rotating rod 135 through the ring gear 1362.

[0046] It should be noted that the gravity base 134 has a cavity inside for the adjustment structure 136 to be inserted.

[0047] In some embodiments, the laser acquisition unit 10 described above can be as follows: Figure 5 The structure shown. See also Figure 5 The laser acquisition unit 10 also includes a wind-resistant component 15, which includes a top cover 151, a slider 152, an electromagnet 153, a spring 155, a wind speed monitoring structure 154, and a second wireless module. The top cover 151 is located above and fixed to the first inner ring. The top cover 151 has a spherical surface with an outer diameter equal to that of the first inner ring and smoothly connected to its outer wall. The slider 152 is slidably disposed within the cylindrical cavity and spaced apart from the fixing ring 131. The electromagnet 153 is located between the fixing ring 131 and the slider 152 and is fixed to the slider 152. The electromagnet 153 has a spherical groove adapted to the spherical surface. The spring 155 is disposed between the fixing ring 131 and the slider 152. One end of the spring 155 abuts against the fixing ring 131, and the other end abuts against the slider 152. The spring 155 can spring the slider 152, causing the electromagnet 153 to maintain a tendency to move away from the top cover 151. The wind speed monitoring structure 154 is located at the top of the fixed cylinder 12 and can monitor the wind speed. The second wireless module is electrically connected to the electromagnet 153 and the wind speed monitoring structure 154, and is wirelessly connected to the control unit. When the wind speed reaches a predetermined value, the second wireless module can control the electromagnet 153 to be energized under the command of the control unit, so that the electromagnet 153 moves closer to and abuts against the top cover 151 along with the slider 152, thereby fixing the position of the top cover 151.

[0048] Because the gravity component 13 is mounted on the pier 30, it is inevitably subject to separation and swaying. This inevitably leads to continuous shaking of the gravity component 13 and a decrease in its accuracy. Therefore, a wind-resistant component 15 is installed. The wind-resistant component 15 can monitor wind speed. Because the gravity component 13's own weight has a relatively small impact under a weak component force, but when the wind speed is high, or when the wind speed reaches a predetermined standard, the wind speed monitoring structure 154 transmits the wind speed signal to... The control unit then triggers the electromagnet 153 to be energized. The electromagnet 153 and the top cover 151 attract each other. Since the top cover 151 is a fixed structure, the electromagnet 153 will pull the slider 152 to move downwards until the ball groove abuts against the top cover 151. At this time, due to the limiting effect of the electromagnet 153, the inner ring will be fixed, thereby preventing the gravity component 13 from continuing to rotate. When the wind disappears, the electromagnet 153 releases the limiting effect on the top cover 151 and the first inner ring through the spring 155, and the gravity component 13 continues to work.

[0049] In this embodiment, the top cover 151 is adapted to the first inner ring and the ball groove, which can ensure that the rotation position of the first inner ring can be fixed at any deflection angle of the first inner ring and the first outer ring. The structure is simple and highly practical.

[0050] It should be noted that both the mounting base 11 and the fixing cylinder 12 can be made of aluminum alloy, while the top cover 151 is made of steel to ensure the attraction of the electromagnet 153. Furthermore, the top cover 151 and the first inner ring can be connected by a thread. Additionally, see [link to relevant documentation]. Figure 5 Multiple bolts can be installed on the fixed cylinder 12. Each bolt is arranged in a ring around the central axis of the first outer ring. Each bolt is threaded to the fixed cylinder 12, and one end of each bolt passes through the fixed cylinder 12 and abuts against the slider 152. This allows for adjustment of the distance between the electromagnet 153 and the top cover 151 to ensure the corresponding speed of fixing the first inner ring.

[0051] In addition, this embodiment can also add a vibration protection function, that is, a vibration sensor is set up. When the vibration sensor detects a vibration signal, the control unit directly controls the electromagnet 153 to work.

[0052] In some embodiments, the wind speed monitoring structure 154 described above can be adopted as follows: Figure 3 and Figure 5 The structure shown. See also Figure 3 and Figure 5The wind speed monitoring structure 154 includes a wind cup 1541 and a speed sensor 1542. The wind cup 1541 is rotatably mounted on the top of the fixed cylinder 12, and its rotation axis is collinear with the axis of the fixed cylinder 12. The speed sensor 1542 is mounted on the fixed cylinder 12 and electrically connected to the second wireless module, enabling it to monitor the speed of the wind cup 1541.

[0053] In this embodiment, the wind cup 1541 has a rotating shaft, which is rotatably mounted on the fixed cylinder 12. The wind cup 1541 is existing technology and will not be described in detail here. The speed sensor 1542 mainly monitors the rotational speed of the wind cup 1541's rotating shaft. The speed sensor 1542 can be a Hall effect speed sensor, which is also existing technology and will not be described in detail here.

[0054] In some embodiments, the laser emitting unit 20 described above may employ, for example... Figures 7 to 9 The structure shown. See also Figures 7 to 9 Each laser emitting unit 20 includes a positioning base 21, a mounting platform 22, a leveling assembly 23, a laser emitter 24, a drive assembly 25, and a third wireless module. The positioning base 21 has two positioning posts that can be inserted into and fixed to the ground. The positioning base 21 also has a second joint bearing 26, which has a second outer ring and a second inner ring adapted to the second outer ring. The mounting platform 22 is positioned above the positioning base 21 and connected to the second inner ring. The leveling assembly 23 is fixed to the positioning base 21 and abuts against the mounting platform 22, enabling adjustment of the mounting platform 22's levelness. The laser emitter 24 is mounted on the mounting platform 22 and projects laser light. The drive assembly 25 is mounted on the mounting platform 22 and connected to the laser emitter 24, driving the laser emitter 24 to rotate so that the laser light is projected onto the corresponding laser receiving end faces 141. The third wireless module is wirelessly connected to the control unit and, under the control unit's command, controls the drive assembly 25 to rotate the laser emitter 24.

[0055] The positioning base 21 can be inserted into the ground via positioning posts to ensure its stability. The mounting platform 22 is universally connected to the positioning base 21 via a second joint bearing 26, which allows the leveling component 23 to adjust the levelness of the mounting platform 22, ensuring that the laser emitter 24 can emit lasers horizontally. The drive component 25 can drive the laser emitter 24 to rotate, ensuring that the laser emitted by the laser emitter 24 can simultaneously correspond to multiple laser acquisition units 10.

[0056] It should be noted that a dustproof and waterproof cover can be installed on the installation platform 22, as shown in [reference]. Figure 7 .

[0057] In some embodiments, the leveling component 23 described above may employ, for example... Figures 7 to 9The structure shown. See also Figures 7 to 9 The leveling assembly 23 includes three adjusting screws 231, each arranged in a ring around the axis of the second outer ring and spaced apart. Each adjusting screw 231 is threadedly connected to the fixed base 21, and its top end abuts against the mounting platform 22. The levelness of the mounting platform 22 can be adjusted by the three adjusting screws 231. Due to the connection structure of the second joint bearing 26, the mounting platform 22 can only rotate in all directions, while the three adjusting screws can position the mounting platform 22 and, after disengaging from the abutment with the rotating platform, ensure the rotation adjustment of the rotating platform.

[0058] It should be noted that the bottom of the adjusting screw 231 is equipped with a hand-operated wheel, while the top of the adjusting screw 231 is equipped with an abutment ball.

[0059] In some embodiments, the driving component 25 described above may employ, for example... Figures 7 to 9 The structure shown. See also Figures 7 to 9 The drive assembly 25 includes a servo motor 251, a slewing bearing 252, and a rotary table 253. The servo motor 251 is fixed to the mounting platform 22 and has an upwardly extending power output end. A drive gear 254 is provided on the power output end of the servo motor 251. The servo motor 251 is electrically connected to the third wireless module. The slewing bearing 252 has a bottom ring and a top ring. The bottom ring is fixed to the mounting platform 22, and the inner wall of the top ring has internal tooth surfaces that mesh with the drive gear 254. The rotary table 253 is fixed to the top ring and can be fixedly connected to the laser emitter 24. By driving the drive gear 254 through the servo motor 251, the top ring of the slewing bearing 252 is driven, thereby driving the rotary table 253 to rotate, effectively ensuring that the laser emitter 24 corresponds to multiple laser acquisition units 10.

[0060] The first wireless module, the second wireless module, and the third wireless module mentioned in the embodiments of the present invention can all be communication modules with control functions. This technology is prior art and will not be described in detail here.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent monitoring device for bridge pier settlement during bridge construction, characterized in that, The system includes a laser acquisition unit, a laser emission unit, and a corresponding control unit. Multiple laser acquisition units are provided, spaced apart around the bridge pier to be monitored. Each laser acquisition unit has a vertically oriented laser receiving end face. At least two laser emission units are provided, also arranged around the bridge pier to be monitored. Each laser emission unit corresponds to a laser receiving end face, and each laser emission unit emits a horizontal laser line to its corresponding laser receiving end face. The control unit is wirelessly connected to each of the laser acquisition units and each of the laser emission units, and is used to control the laser emission units to periodically emit lasers and record the laser point position change data on each of the laser receiving end faces to determine uniform or non-uniform settlement, and monitor the settlement value at the same time. Each of the laser acquisition units includes a mounting base, a fixing cylinder, a gravity component, a laser target surface, a wind-resistant component, and a first wireless module; the gravity component includes a fixing ring, a first joint bearing, a connecting rod, a gravity base, a rotating rod, and an adjustment structure. The adjustment structure includes a stepper motor, a ring gear, and a power gear. The stepper motor is disposed in the gravity base and has a power output end. The ring gear is fixedly sleeved on the rotating rod, and the outer edge of the ring gear extends into the gravity base. There are three power gears, which are arranged circumferentially around the axis of the rotating rod, and one of the power gears is fixedly sleeved on the power output end of the stepper motor.

2. The intelligent monitoring device for bridge pier settlement as described in claim 1, characterized in that, The mounting base is used to be fixed to the side wall of the bridge pier, and the mounting base has an outwardly extending cantilever end; the fixing cylinder is fixedly connected to the cantilever end, and the fixing cylinder has a cylindrical cavity with an open bottom end; one end of the gravity component is located in the cylindrical cavity and fixedly connected to the fixing cylinder, and the other end of the gravity component passes through the open end of the cylindrical cavity and extends downward; the laser target surface is fixed on the gravity component, and the laser target surface is used to maintain a vertical state as the gravity component continues, and the laser receiving end face is located on the laser target surface; the first wireless module is electrically connected to the laser target surface and is used to transmit the laser point signal on the laser target surface to the control unit.

3. The intelligent monitoring device for bridge pier settlement as described in claim 2, characterized in that, The fixing ring is fixed on the inner wall of the cylindrical cavity and coaxially arranged with the cylindrical cavity. The fixing ring has an annular hole. The first spherical bearing has a first outer ring and a first inner ring adapted to the first outer ring. The first outer ring is fixed at the annular hole, and the first inner ring is rotatably connected to the first outer ring. The first inner ring has a transition hole. At least two connecting rods are provided. The two connecting rods are arranged annularly spaced around the axis of the transition hole. One end of each connecting rod is fixedly connected to the first inner ring, and the other end extends along the axis of the transition hole. The gravity base is fixedly connected to the extended end of each connecting rod. The rotating rod is arranged parallel to each connecting rod. One end of the rotating rod is rotatably connected to the transition hole, and the other end of the transition hole is rotatably connected to the gravity base. The laser target surface is arranged on the rotating rod. The adjusting structure is arranged on the gravity base and is poweredly connected to the rotating rod to drive the rotating rod to rotate so that the laser target surface faces the corresponding laser emitting unit.

4. The intelligent monitoring device for bridge pier settlement as described in claim 3, characterized in that, The rotating rod is provided with a limiting ring; The adapter hole is provided with a limiting groove for the limiting ring to rotate and connect. The limiting groove is used to limit the rotation rod in the axial direction of the adapter hole.

5. The intelligent monitoring device for bridge pier settlement as described in claim 3, characterized in that, The wind-resistant component includes a top cover, a slider, an electromagnet, a spring, a wind speed monitoring structure, and a second wireless module. The top cover is located above and fixed to the first inner ring, and has a spherical surface with an outer diameter equal to that of the first inner ring and smoothly connected to the outer wall of the first inner ring. The slider is slidably disposed in the cylindrical cavity and spaced apart from the fixed ring. The electromagnet is located between the fixed ring and the slider and is fixed to the slider, and has a spherical groove adapted to the spherical surface. The spring is disposed between the fixed ring and the slider, with one end of the spring... One end abuts against the fixed ring, and the other end abuts against the slider. The spring is used to spring the slider so that the electromagnet tends to move away from the top cover. The wind speed monitoring structure is set at the top of the fixed cylinder for monitoring the wind speed. The second wireless module is electrically connected to the electromagnet and the wind speed monitoring structure respectively, and wirelessly connected to the control unit. The second wireless module is used to control the electromagnet to be energized after the wind speed reaches a predetermined value and under the instruction of the control unit, so that the electromagnet moves closer to and abuts against the top cover along with the slider, thereby fixing the position of the top cover.

6. The intelligent monitoring device for bridge pier settlement as described in claim 5, characterized in that, The wind speed monitoring structure includes a wind cup and a speed sensor; the wind cup is rotatably mounted on the top of the fixed cylinder, and its rotation axis is collinear with the axis of the fixed cylinder; the speed sensor is mounted on the fixed cylinder and electrically connected to the second wireless module for monitoring the speed of the wind cup.

7. The intelligent monitoring device for bridge pier settlement as described in claim 1, characterized in that, Each laser emitting unit includes a positioning base, a mounting platform, a leveling assembly, a laser emitter, a driving assembly, and a third wireless module. The positioning base has two positioning posts for insertion and fixation to the ground. The positioning base also has a second joint bearing with a second outer ring and a second inner ring adapted to the second outer ring. The mounting platform is positioned above the positioning base and connected to the second inner ring. The leveling assembly is fixed to the positioning base and abuts against the mounting platform to adjust the levelness of the mounting platform. The laser emitter is mounted on the mounting platform for projecting laser light. The driving assembly is mounted on the mounting platform and connected to the laser emitter to drive the laser emitter to rotate, so that the laser light is projected onto the corresponding laser receiving end faces. The third wireless module is wirelessly connected to the control unit and, under the command of the control unit, controls the driving assembly to rotate the laser emitter.

8. The intelligent monitoring device for bridge pier settlement as described in claim 7, characterized in that, The leveling assembly includes three adjusting screws, each of which is arranged in a ring around the axis of the second outer ring and spaced apart. Each adjusting screw is threadedly connected to the fixed base, and the top end of the adjusting screw abuts against the mounting platform.

9. The intelligent monitoring device for bridge pier settlement as described in claim 8, characterized in that, The drive assembly includes a servo motor, a slewing bearing, and a rotary table. The servo motor is fixed to the mounting platform and has an upwardly extending power output end. A drive gear is provided on the power output end of the servo motor, and the servo motor is electrically connected to the third wireless module. The slewing bearing has a bottom ring and a top ring. The bottom ring is fixed to the mounting platform, and the inner wall surface of the top ring has an internal tooth surface that meshes with the drive gear. The rotary table is fixed to the top ring for fixed connection of the laser emitter.

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