Pole tower foundation displacement and inclination detection device based on laser phased array

Abstract

The invention belongs to the technical field of power transmission construction, and relates to a tower foundation displacement and inclination detection device based on a laser phased array, which comprises a detection tool and a control unit, and is characterized in that the detection tool is provided with a sliding rail, a scanning bracket and a laser phased array imaging detection system; the control unit is provided with a controller, a data receiving module, an image generation module, a correction module and a calibration module, the laser phased array imaging detection system scans and detects a tower foundation to obtain imaging data and uploads the imaging data to the data receiving module, and the image generation module performs simulation training according to preset parameters of the tower foundation to obtain a three-dimensional simulation model; coupling the plurality of groups of imaging data to the three-dimensional simulation model to generate a physical model of the tower foundation; the correction module obtains the displacement offset and the inclination angle of a physical model in the three-dimensional simulation model and generates an error compensation parameter; and the error compensation parameters are marked in a three-dimensional simulation model through a calibration module, and operators are guided to perform construction operation on the tower foundation on the construction site.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission construction, and in particular relates to a pole tower foundation displacement and tilt detection device based on a laser phased array. Background Art

[0002] At present, there are two methods for the construction of overhead transmission line tower foundations: single piles and pile groups. The main reason for the single pile is that the construction is simple. After excavation, reinforcement and pouring are sufficient. However, the single pile foundation occupies a large area, requires a large amount of excavation, and requires a large amount of reinforcement. Therefore, pile groups are more commonly used at this stage. The load borne by the pile group foundation is shared by the single piles in it. Therefore, the mechanical performance parameters of each pile foundation will affect the distribution of the load between the single piles. However, at this stage, manual measurement is used in the construction process of the pile group to detect whether the construction position and pile foundation formation of the single pile foundation meet the load design requirements. The detection efficiency is low, and human factors are prone to occur during the detection process, resulting in inaccurate detection results, leading to installation deviations in the pile group foundation. It is often necessary to rework the unqualified single pile foundation, which affects the overall construction progress, seriously increases the construction investment cost, and cannot meet the existing construction needs. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a tower foundation displacement and tilt detection device based on a laser phased array to solve the technical problems mentioned in the prior art.

[0004] The tower foundation displacement and tilt detection device based on laser phased array includes:

[0005] A detection tool, wherein the detection tool comprises a slide rail, a scanning bracket and a laser phased array imaging detection system, wherein the slide rail is arranged at the outer peripheral side of the tower foundation, the scanning bracket is installed on the slide rail, at least two detection points are arranged on the scanning bracket in the vertical direction, and the laser phased array imaging detection system is installed at any one of the detection points to detect imaging data of the tower foundation at different positions;

[0006] A control unit, the control unit comprising:

[0007] A controller, wherein the controller is used to control the scanning support to drive the laser phased array imaging detection system to move along the motion trajectory of the slide rail at one of the detection points to scan and detect the tower foundation, thereby obtaining corresponding imaging data;

[0008] A data receiving module, connected to the laser phased array imaging detection system, for receiving the imaging data uploaded by the laser phased array imaging detection system;

[0009] An image generation module, connected to the data receiving module, wherein the image generation module performs simulation training according to preset parameters of the pole tower foundation to obtain a three-dimensional simulation model, and couples several groups of the imaging data to the three-dimensional simulation model to generate a physical model of the pole tower foundation;

[0010] A correction module, connected to the image generation module, for obtaining a displacement offset and an inclination angle of the physical model in the three-dimensional simulation model, and generating an error compensation parameter according to the obtained displacement offset and inclination angle of the physical model;

[0011] A calibration module is connected to the correction module and the image generation module, and is used to mark the error compensation parameters in the three-dimensional simulation model to guide operators to perform construction work on the tower foundation at the construction site.

[0012] Optionally, the image generation module includes:

[0013] A setting subunit, the setting subunit is used to set the preset parameters of the tower foundation;

[0014] A model building subunit, connected to the setting subunit, the model building subunit performs simulation training to build a three-dimensional simulation model according to preset parameters of the tower foundation;

[0015] A storage subunit, connected to the model building subunit, the storage subunit is used to store the three-dimensional simulation model;

[0016] A data updating subunit, connected to the storage subunit and the data receiving module, is used to couple the acquired groups of imaging data to the three-dimensional simulation model to generate a physical model of the tower foundation, and iteratively update the imaging data acquired at the corresponding detection points in the physical model, and only retain the final imaging data detected at each detection point in the physical model.

[0017] Optionally, the error compensation parameters include a displacement compensation amount, an angle compensation amount and a corresponding compensation direction of the physical model;

[0018] The calibration module generates a compensation path according to the compensation direction, and marks the compensation path in the three-dimensional simulation model.

[0019] Optionally, the slide rail is a circular rail, and the model building subunit builds a spatial coordinate system with the center of the slide rail as the coordinate origin, and forms a three-dimensional simulation model based on preset parameters of the tower foundation;

[0020] The preset parameters include the design position and geometric dimensions of the tower foundation.

[0021] Optionally, the scanning support comprises:

[0022] A mounting seat, the mounting seat is slidably mounted on the top of the slide rail, and a driving member is provided on the mounting seat;

[0023] A support frame, the support frame is installed on the top of the mounting seat, a telescopic member is provided on the support frame, a fixed seat is provided at the output end of the telescopic member, and the fixed seat is used to install the laser phased array imaging detection system;

[0024] The driving member and the telescopic member are respectively connected to the controller, and the controller is used to control the driving member to drive the mounting seat to move along the motion trajectory on the slide rail, and to control the telescopic member to move the laser phased array imaging detection system to any one of the detection points.

[0025] Optionally, the driving member comprises:

[0026] A rack arranged in an annular shape on the slide rail;

[0027] A gear, the outer periphery of which is meshed with the rack, and the inner periphery of which is provided with a rotating shaft;

[0028] A driving motor is mounted on the mounting seat, and an output end of the driving motor is connected to one end of the rotating shaft.

[0029] Optionally, the telescopic member comprises:

[0030] A plurality of displacement sensors mounted on the support frame, wherein the plurality of displacement sensors are arranged one by one on one side of each of the detection points, and the plurality of displacement sensors are arranged equidistantly in the vertical direction;

[0031] An electric push rod is installed on the support frame, and the mounting seat is installed at the output end of the electric push rod. The electric push rod is extended to drive the mounting seat to move to any one of the detection points.

[0032] Optionally, the tower foundation is a single pile foundation or a pile group foundation.

[0033] Optionally, the tower foundation is a pile group foundation, and the pile group foundation is composed of a plurality of single pile foundations arranged along a circumferential array on the inner peripheral side of the center of the slide rail.

[0034] Optionally, the laser phased array imaging detection system is an ISONIC 2010 multifunctional ultrasonic phased array imaging detection system.

[0035] The beneficial effects that the present invention can produce include:

[0036] The pole tower foundation displacement and tilt detection device based on laser phased array provided by the present invention performs scanning and detection of the pole tower foundation by designing detection tooling, obtains multiple sets of imaging data and uploads them to the control unit to generate corresponding physical models and error compensation parameters, guides operators to perform construction work on the pole tower foundation at the construction site, improves the detection accuracy and detection efficiency of the pole tower foundation, ensures the accurate construction of the pole tower foundation, reduces the rework rate, thereby speeding up the overall construction progress and reducing the construction investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The schematic diagram of the framework of the tower foundation displacement and tilt detection device based on the laser phased array of the present invention;

[0038] Figure 2 It is a schematic structural diagram of a tower foundation displacement and tilt detection device based on a laser phased array according to the present invention;

[0039] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0040] Figure 4 A schematic diagram of a three-dimensional simulation model and a physical model of a tower foundation of the present invention;

[0041] In the figure: 1. slide rail, 2. scanning bracket, 3. laser phased array imaging detection system, 4. data receiving module, 5. image generation module, 51. setting subunit, 52. model building subunit, 53. storage subunit, 54. data update subunit, 6. correction module, 7. calibration module, 8. mounting base, 9. support frame, 10. fixing base, 11. rack, 12. gear, 13. driving motor, 14. displacement stroke sensor, 15. electric push rod, 16. pole tower foundation, b is the physical model of the pole tower foundation, c is the three-dimensional simulation model of the pole tower foundation, and d is the error compensation parameter compensation path of the physical model. DETAILED DESCRIPTION

[0042] The present invention is described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0043] like Figure 1-Figure 4As shown, the present invention provides a pole tower foundation displacement and tilt detection device based on laser phased array, the detection system includes a detection tool and a control unit, wherein the detection tool has a slide rail 1, a scanning bracket 2 and a laser phased array imaging detection system 3 (such as ISONIC2010 multifunctional ultrasonic phased array imaging detection system), the slide rail 1 is arranged on the outer peripheral side of the pole tower foundation 16, the scanning bracket 2 is installed on the slide rail 1, and at least two detection points are arranged on the scanning bracket 2 in the vertical direction. The laser phased array imaging detection system 3 is installed at any detection point to detect the imaging data of the pole tower foundation 16 at different positions; the control unit has a controller (single-chip microcomputer), a data receiving module 4, an image generating module 5, a correction module 6 and a calibration module 7, the controller is used to control the scanning bracket 2 to drive the laser phased array imaging detection system 3 to move along the motion trajectory of the slide rail 1 at one of the detection points to scan and detect the pole tower foundation 16 to obtain corresponding imaging data; the data receiving module 4 is connected to the laser phased array forming module 7. The image detection system 3, the laser phased array imaging detection system 3 acquires the imaging data of the pole tower foundation 16 in real time and uploads it to the data receiving module 4; the image generation module 5 is connected to the data receiving module 4, the image generation module 5 performs simulation training according to the preset parameters of the pole tower foundation 16 to obtain a three-dimensional simulation model, and couples several groups of imaging data to the three-dimensional simulation model to generate a physical model of the pole tower foundation 16; the correction module 6 is connected to the image generation module 5, the correction module 6 is used to obtain the displacement offset and tilt angle of the physical model in the three-dimensional simulation model, and generate error compensation parameters according to the acquired displacement offset and tilt angle of the physical model; the calibration module 7 is connected to the correction module 6 and the image generation module 5, and is used to mark the error compensation parameters in the three-dimensional simulation model, guide the operators to perform construction work on the pole tower foundation 16 at the construction site, improve the detection accuracy and detection efficiency of the pole tower foundation 16, ensure the accurate construction of the pole tower foundation 16, reduce the rework rate, thereby speeding up the overall construction progress and reducing the construction investment cost.

[0044] Specifically, the pole tower foundation 16 is a single pile foundation or a pile group foundation, and the detection system can be used to detect both single pile foundations and pile group foundations. In this embodiment, the pole tower foundation 16 is a pile group foundation, which is composed of multiple single pile foundations arranged in a circumferential array on the inner peripheral side of the center of the slide rail 1. At the construction site, a pre-buried foundation pit is excavated according to the preset position of the pole tower foundation 16, and the detection tooling is built on the outer peripheral side of the preset position of the pole tower foundation 16, and then the pole tower foundation 16 is hoisted in the pre-buried foundation pit by a tower crane, so that the part of the pole tower foundation 16 to be poured is exposed at the top of the pre-buried foundation pit, and then the pre-buried foundation pit is filled with soil to pre-fix the pole tower foundation 16, and then the laser phased array imaging detection system 3 is used to detect whether the installation position of the pole tower foundation 16 meets the load design requirements. If it is detected that the pole tower foundation 16 does not meet the load design requirements, the installation position of the pole tower foundation 16 is adjusted until the laser phased array imaging detection system 3 detects that the pole tower foundation 16 meets the load design requirements; then the soil layer is vibrated and filled, and then the part of the pole tower foundation 16 to be poured and the pre-buried foundation pit reserved by vibration are poured with concrete, thereby completing the formation of the pole tower foundation 16.

[0045] In the above, the image generation module 5 includes a setting subunit 51, a model building subunit 52, a storage subunit 53 and a data updating subunit 54, the setting subunit 51 is used to set the preset parameters of the tower foundation 16; the model building subunit 52 is connected to the setting subunit 51, and the model building subunit 52 performs simulation training according to the preset parameters of the tower foundation 16 to construct a three-dimensional simulation model; the storage subunit 53 is connected to the model building subunit 52, and the storage subunit 53 is used to store the three-dimensional simulation model; the data updating subunit 54 is connected to the storage subunit 53 and the data receiving module 4, and is used to couple the acquired several sets of imaging data to the three-dimensional simulation model to generate a physical model of the tower foundation 16, and iteratively update the imaging data acquired at the corresponding detection points in the physical model, and only retain the final imaging data detected at each detection point in the physical model. Specifically, each group of imaging data constitutes the outer contour line of the physical model at the corresponding detection point. By coupling multiple groups of outer contour lines, two adjacent groups of outer contour lines are connected by lofting to generate the solid contour of the physical model. Therefore, the size and forming accuracy of the solid contour of the physical model depend on the imaging data of different detection points. That is, the more detection points the imaging data is obtained from, the larger the solid contour of the physical model. At the same time, the more adjacent detection points tend to be concentrated, the higher the forming accuracy of the physical model.

[0046] In the above-mentioned embodiment, the error compensation parameter includes the displacement compensation amount, angle compensation amount and corresponding compensation direction of the physical model; the calibration module 7 generates a compensation path according to the compensation direction, and marks the compensation path in the three-dimensional simulation model, so as to guide the operator to adjust the installation position of the pole tower foundation 16 according to the compensation path, and the adjustment data is the corresponding displacement compensation amount and angle compensation amount. Specifically, the displacement compensation amount of the physical model is the absolute value of the distance difference between the center line of the physical model and the center line of the three-dimensional simulation model; the angle compensation amount of the physical model is the angle between the center line of the physical model and the center line of the three-dimensional simulation model; when the error compensation parameter has an angle compensation amount, the displacement compensation amount has two values, the maximum displacement compensation amount is the farthest distance between the center line of the physical model and the center line of the three-dimensional simulation model, and the minimum displacement compensation amount is the shortest distance between the center line of the physical model and the center line of the three-dimensional simulation model; at the same time, the compensation direction is the direction of movement of the physical model toward the three-dimensional simulation model, that is, the direction of movement along the x-axis or the direction of movement along the y-axis in the spatial coordinate system.

[0047] In the above-mentioned embodiment, the slide rail 1 is a circular rail, which is used to perform a full scan of the outer periphery of the tower foundation 16; the model construction subunit 52 constructs a spatial coordinate system with the center of the slide rail 1 as the coordinate origin, and forms a three-dimensional simulation model based on the preset parameters of the tower foundation 16; the preset parameters include the design position and geometric dimensions of the tower foundation 16, and different three-dimensional simulation models can be generated by editing the preset parameters, which are used to perform construction operations on the tower foundation 16 according to different load design requirements.

[0048] In the above-mentioned embodiment, the scanning bracket 2 includes a mounting seat 8, a support frame 9, a driving member and a telescopic member. The mounting seat 8 is slidably mounted on the top of the slide rail 1, and a driving member is arranged on the mounting seat 8; the support frame 9 is mounted on the top of the mounting seat 8, and a telescopic member is arranged on the support frame 9. A fixed seat 10 is arranged at the output end of the telescopic member, and the fixed seat 10 is used to install a laser phased array imaging detection system 3; wherein, the driving member and the telescopic member are respectively connected to the controller, and the controller is used to control the driving member to drive the mounting seat 8 to move along the motion trajectory on the slide rail 1, and to control the telescopic member to move the laser phased array imaging detection system 3 to any detection point to obtain imaging data of the tower foundation 16 at different detection points. Specifically, the driving member includes a rack 11, a gear 12 and a driving motor 13 which are arranged in a ring shape on the slide rail 1. The outer periphery of the gear 12 is meshed with the rack 11, and a rotating shaft is fixedly installed on the inner periphery of the gear 12. The driving motor 13 is fixedly installed on the mounting seat 8, and the output end of the driving motor 13 is fixedly connected to one end of the rotating shaft. The controller controls the driving motor 13 to rotate the gear 12 through the rotating shaft, so that the gear 12 rotates along the rack 11, thereby driving the mounting seat 8 to move along the motion trajectory on the slide rail 1. The telescopic member includes a plurality of displacement stroke sensors 14 and an electric push rod 15 fixedly mounted on the support frame 9. The plurality of displacement stroke sensors 14 are respectively arranged one by one on one side of each detection point, and the plurality of displacement stroke sensors 14 are arranged equidistantly in the vertical direction; the electric push rod 15 is fixedly mounted on the support frame 9, and the mounting seat 8 is fixedly mounted on the output end of the electric push rod 15. The electric push rod 15 extends to drive the mounting seat 8 to move to any detection point, thereby controlling the laser phased array imaging detection system 3 to scan and detect the tower foundation 16 at different detection points.

[0049] The above are only several embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention is disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, using the above disclosed technical content to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A tower foundation displacement and tilt detection device based on a laser phased array, characterized in that: include: A detection tool, the detection tool comprising a slide rail (1), a scanning support (2) and a laser phased array imaging detection system (3), the slide rail (1) being arranged on the outer peripheral side of a pole tower foundation (16), the scanning support (2) being mounted on the slide rail (1), at least two detection points being arranged on the scanning support (2) in a vertical direction, and the laser phased array imaging detection system (3) being mounted on any one of the detection points and being used to detect imaging data of the pole tower foundation (16) at different positions; A control unit, the control unit comprising: A controller, the controller being used to control the scanning support (2) to drive the laser phased array imaging detection system (3) to move along the motion trajectory of the slide rail (1) at one of the detection points to scan and detect the tower foundation (16) and obtain corresponding imaging data; A data receiving module (4), connected to the laser phased array imaging detection system (3), and used for receiving the imaging data uploaded by the laser phased array imaging detection system (3); An image generation module (5) connected to the data receiving module (4), the image generation module (5) performing simulation training according to preset parameters of the pole tower foundation (16) to obtain a three-dimensional simulation model, and coupling a plurality of groups of the imaging data to the three-dimensional simulation model to generate a physical model of the pole tower foundation (16); A correction module (6), connected to the image generation module (5), the correction module (6) being used to obtain the displacement offset and the tilt angle of the physical model in the three-dimensional simulation model, and to generate error compensation parameters according to the obtained displacement offset and the tilt angle of the physical model; A calibration module (7) is connected to the correction module (6) and the image generation module (5) and is used to mark the error compensation parameters in the three-dimensional simulation model to guide operators to perform construction work on the tower foundation (16) at the construction site.

2. The tower foundation displacement and tilt detection device based on laser phased array according to claim 1, characterized in that: The image generation module (5) comprises: A setting subunit (51), the setting subunit (51) being used to set preset parameters of the tower foundation (16); A model building subunit (52) is connected to the setting subunit (51), and the model building subunit (52) performs simulation training according to preset parameters of the tower foundation (16) to build a three-dimensional simulation model; A storage subunit (53), connected to the model building subunit (52), the storage subunit (53) being used to store the three-dimensional simulation model; A data updating subunit (54) is connected to the storage subunit (53) and the data receiving module (4), and is used to couple the acquired sets of imaging data to the three-dimensional simulation model to generate a physical model of the tower foundation (16), and iteratively update the imaging data acquired at the corresponding detection points in the physical model, wherein only the final imaging data detected at each detection point is retained in the physical model.

3. The tower foundation displacement and tilt detection device based on laser phased array according to claim 1, characterized in that: The error compensation parameters include the displacement compensation amount, angle compensation amount and corresponding compensation direction of the physical model; The calibration module (7) generates a compensation path according to the compensation direction, and marks the compensation path in the three-dimensional simulation model.

4. The tower foundation displacement and tilt detection device based on laser phased array according to claim 2, characterized in that: The slide rail (1) is a circular track, and the model building subunit (52) builds a spatial coordinate system with the center of the slide rail (1) as the coordinate origin, and forms a three-dimensional simulation model based on preset parameters of the tower foundation (16); The preset parameters include the design position and geometric dimensions of the tower foundation (16).

5. The tower foundation displacement and tilt detection device based on laser phased array according to claim 1, characterized in that: The scanning support (2) comprises: A mounting seat (8), the mounting seat (8) being slidably mounted on the top of the slide rail (1), and a driving member being arranged on the mounting seat (8); A support frame (9), the support frame (9) being mounted on the top of the mounting seat (8), the support frame (9) being provided with a telescopic member, the output end of the telescopic member being provided with a fixed seat (10), the fixed seat (10) being used for mounting the laser phased array imaging detection system (3); The driving member and the telescopic member are respectively connected to the controller, and the controller is used to control the driving member to drive the mounting seat (8) to move along a motion trajectory on the slide rail (1), and to control the telescopic member to move the laser phased array imaging detection system (3) to any one of the detection points.

6. The tower foundation displacement and tilt detection device based on laser phased array according to claim 5, characterized in that: The driving member comprises: A rack (11) arranged in an annular shape on the slide rail (1); a gear (12), wherein the outer periphery of the gear (12) is meshed with the rack (11), and a rotating shaft is installed on the inner periphery of the gear (12); A driving motor (13), wherein the driving motor (13) is mounted on the mounting seat (8), and an output end of the driving motor (13) is connected to one end of the rotating shaft.

7. The tower foundation displacement and tilt detection device based on laser phased array according to claim 5, characterized in that: The telescopic member comprises: A plurality of displacement sensors (14) are mounted on the support frame (9), wherein the plurality of displacement sensors (14) are arranged one by one on one side of each of the detection points, and the plurality of displacement sensors (14) are arranged at equal intervals in the vertical direction; An electric push rod (15), wherein the electric push rod (15) is mounted on the support frame (9), and the mounting seat (8) is mounted on the output end of the electric push rod (15). The electric push rod (15) extends to drive the mounting seat (8) to move to any one of the detection points.

8. The tower foundation displacement and tilt detection device based on laser phased array according to claim 1, characterized in that: The tower foundation (16) is a single pile foundation or a group pile foundation.

9. The tower foundation displacement and tilt detection device based on laser phased array according to claim 8, characterized in that: The pole tower foundation (16) is a pile group foundation, and the pile group foundation is composed of a plurality of single pile foundations arranged in a circumferential array on the inner peripheral side of the center of the slide rail (1).

10. The tower foundation displacement and tilt detection device based on laser phased array according to claim 9, characterized in that: The laser phased array imaging detection system (3) is an ISONIC 2010 multifunctional ultrasonic phased array imaging detection system.

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