Array laser detection equipment and method for deformation detection

Abstract

The invention relates to the technical field of constructional engineering, in particular to array laser detection equipment and method for deformation detection.The array laser detection equipment comprises a shell, a detection assembly and a mounting assembly, and the detection assembly comprises a laser beam emitting module, a laser beam receiving module, a processor and a communication module; a plurality of laser transmitters of the laser beam transmitting module respectively transmit a laser beam to a to-be-detected bridge and tunnel structure to form a laser array, the laser beam receiver module sequentially receives corresponding laser beams, the processor acquires laser scanning data, and the data is compared with original data of the bridge and tunnel structure after being processed. According to the method, the deformation quantity of the bridge and tunnel structure is calculated, if the deformation quantity exceeds a threshold value, the deformation quantity is transmitted and early warning information is sent out through the communication module, rapid and high-precision deformation detection of irregular buildings and bridge and tunnel structures with design feelings is achieved through multi-angle emission of the multiple laser emitters, the detection efficiency is improved, and the detection cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to an array laser detection device and method for deformation detection. Background Art

[0002] Tunnels, bridges and other buildings need to undergo deformation detection during daily safety monitoring. Deviations will occur during the use of buildings. Deviations within a certain limit are normal, but if they exceed a certain limit, they will affect the use of the building and even endanger the safety of the building in serious cases.

[0003] There is an existing deformation detection method, which takes an image of a building and then determines whether the building is deformed based on the image and initial building data.

[0004] However, this method is only applicable to deformation detection of square buildings, and is not applicable to irregular buildings with a sense of design, such as bridge and tunnel structures. Summary of the invention

[0005] The purpose of the present invention is to provide an array laser detection device and method for deformation detection, which solves the problem that deformation detection by taking images of buildings and then judging whether the buildings are deformed based on the images and initial building data is not applicable to bridge and tunnel structures.

[0006] To achieve the above-mentioned object, the present invention provides an array laser detection device for deformation detection, comprising a housing, a detection component and a mounting component;

[0007] The detection component is connected to the housing, the mounting component is connected to the housing, the detection component includes a laser beam emitting module, a laser beam receiving module, a processor and a communication module, the laser beam emitting module is connected to the processor, the laser beam receiving module is connected to the processor, and the communication module is connected to the processor;

[0008] The laser beam emitting module is composed of a plurality of laser emitters, each of which emits a laser beam to the bridge-tunnel structure to form a laser array;

[0009] The laser beam receiving module is used to sequentially receive corresponding laser beams;

[0010] The processor is used to obtain laser scanning data, process the data, and compare the processed data with the original data of the bridge-tunnel structure to calculate the deformation amount of the bridge-tunnel structure;

[0011] The communication module is used to transmit the calculation results.

[0012] Wherein, the processor comprises a data processing unit and a deformation detection unit, the data processing unit is connected to the laser beam emitting module and the laser beam receiving module respectively, and the deformation detection unit is connected to the data processing unit;

[0013] The data processing unit is used to perform coordinate conversion and data filtering on the acquired laser scanning data;

[0014] The deformation detection unit is used to compare the processed data with the original data of the bridge-tunnel structure and calculate the difference between them, which is the deformation amount of the bridge-tunnel structure.

[0015] Wherein, the detection component further comprises a tilt sensing module, and the tilt sensing module is connected to the processor;

[0016] The tilt angle sensing module is used to sense the angle change of the laser beam emission center position and upload the angle change to the processor.

[0017] Wherein, the detection component further includes a temperature sensing module, and the temperature sensing module is connected to the processor;

[0018] The temperature sensing module is used to sense the temperature of the entire device and upload the temperature data to the processor.

[0019] Wherein, the mounting assembly includes a mounting seat, a rotating shaft, an angle adjustment member and a rotating member, the mounting seat is fixedly connected to the outer shell and is located on one side of the outer shell; the rotating shaft is fixedly connected to the mounting seat and passes through the mounting seat; the angle adjustment member is connected to the rotating shaft, and the rotating member is connected to the angle adjustment member.

[0020] Wherein, the angle adjustment component includes a fixing seat and a power component, the fixing seat is rotatably connected to the rotating shaft; and the power component is connected to the rotating shaft.

[0021] An array laser detection method for deformation detection comprises the following steps:

[0022] Each laser emitter of the laser beam emission module emits a laser beam to the bridge-tunnel structure to form a laser array;

[0023] The laser beam receiving module receives the corresponding laser beams in sequence;

[0024] The processor acquires laser scanning data and processes the data;

[0025] The processed data is compared with the original data of the bridge-tunnel structure to calculate the deformation of the bridge-tunnel structure. If the threshold is exceeded, an early warning message is issued through the communication module.

[0026] The present invention provides an array laser detection device and method for deformation detection, wherein the housing is used to install the detection component, the installation component installs the housing on a carrier, the multiple laser emitters of the laser beam emitting module respectively emit a laser beam toward the bridge and tunnel structure to be detected, and form a laser array, the laser beam receiver module receives the corresponding laser beams in sequence, the processor obtains laser scanning data through the emission time of the laser beam emitting module and the reception time of the laser beam receiving module, and compares the data with the original data of the bridge and tunnel structure after processing, that is, calculates the deformation amount of the bridge and tunnel structure, and if it exceeds the threshold, transmits it through the communication module, issues a warning message, and utilizes the multi-angle emission of multiple laser emitters to achieve fast and high-precision deformation detection of irregular buildings and bridge and tunnel structures with a sense of design, thereby improving detection efficiency and reducing detection costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0028] Figure 1 It is a structural block diagram of the detection component of the first embodiment of the present invention.

[0029] Figure 2 It is a schematic structural diagram of an installation component according to a second embodiment of the present invention.

[0030] Figure 3 It is a schematic structural diagram of a power component of the second embodiment of the present invention.

[0031] Figure 4 is a cross-sectional view of a mounting assembly according to a second embodiment of the present invention.

[0032] Figure 5 It is a step diagram of the array laser detection method for deformation detection according to the third embodiment of the present invention.

[0033] In the figure: 101-laser beam emitting module, 102-laser beam receiving module, 103-processor, 104-communication module, 105-data processing unit, 106-deformation detection unit, 107-tilt sensing module, 108-temperature sensing module, 201-mounting seat, 202-rotating shaft, 203-fixed seat, 204-connecting shaft, 205-second motor, 206-mounting disk, 207-turbine, 208-worm, 209-first motor. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0035] The first embodiment of the present application is:

[0036] See also Figure 1 ,in, Figure 1 It is a structural block diagram of the detection component of the first embodiment of the present invention. The present invention provides an array laser detection device for deformation detection: including a housing, a detection component and a mounting component, the detection component includes a laser beam emitting module 101, a laser beam receiving module 102, a processor 103, a communication module 104, a tilt sensing module 107 and a temperature sensing module 108, the processor 103 includes a data processing unit 105 and a deformation detection unit 106. The above scheme solves the problem that deformation detection by taking an image of a building and then judging whether the building is deformed based on the image and the initial building data is not applicable to bridge and tunnel structures. It can be understood that the above scheme can be used for building deformation detection, and can also be used in other fields that require deformation detection.

[0037] According to this specific embodiment, the detection component is connected to the housing, the mounting component is connected to the housing, the laser beam emitting module 101 is connected to the processor 103, the laser beam receiving module 102 is connected to the processor 103, and the communication module 104 is connected to the processor 103;

[0038] The laser beam emitting module 101 is composed of a plurality of laser emitters, each of which emits a laser beam to the bridge-tunnel structure to form a laser array;

[0039] The laser beam receiving module 102 is used to sequentially receive corresponding laser beams;

[0040] The processor 103 is used to obtain laser scanning data, process the data, and compare the processed data with the original data of the bridge-tunnel structure to calculate the deformation amount of the bridge-tunnel structure;

[0041] The communication module 104 is used to transmit the calculation results.

[0042] The detection component is installed in the shell, and the installation component is used to install the shell. The processor 103 controls the laser beam emitting module 101, each laser emitter emits a laser beam to form a laser array, and the laser beam receiving module 102 receives the corresponding laser beams in turn. The processor 103 obtains laser scanning data according to the emission time of the laser beam emitting module 101 and the reception time of the laser beam receiving module 102, and processes the acquired laser scanning data, including coordinate conversion, data filtering and other processing. By comparing the processed data with the original data, the deformation variable of the bridge-tunnel structure is calculated. If the deformation variable exceeds the threshold, a warning message is sent to the external device through the communication module 104, and the communication module 104 realizes data transmission through wired or wireless.

[0043] The data processing unit 105 is connected to the laser beam emitting module 101 and the laser beam receiving module 102 respectively, and the deformation detection unit 106 is connected to the data processing unit 105;

[0044] The data processing unit 105 is used to perform coordinate conversion and data filtering on the acquired laser scanning data;

[0045] The deformation detection unit 106 is used to compare the processed data with the original data of the bridge-tunnel structure and calculate the difference between them, which is the deformation amount of the bridge-tunnel structure.

[0046] The data processing unit 105 converts the acquired coordinate data into data in the same coordinate system for subsequent data analysis and processing. Coordinate conversion can be performed by various methods, such as rotation matrix method, homogeneous transformation method, etc. When performing coordinate conversion, factors such as the installation position and angle of the laser scanning device need to be considered to ensure the accuracy and reliability of the conversion. The acquired laser scanning data is filtered to remove errors and noise, and improve the accuracy and reliability of the data. Data filtering can be performed by various methods, such as low-pass filtering, median filtering, Kalman filtering, etc. When performing data filtering, factors such as data characteristics and noise types need to be considered to ensure the accuracy and effectiveness of filtering. The deformation detection unit 106 calculates the difference between the processed data and the original data in the x, y, and z coordinates, and uses the difference method or the least squares method to calculate. According to the type and characteristics of the bridge-tunnel structure, a deformation model is established, and elastic mechanics, finite element method, etc. are used to model. The coordinate difference is substituted into the deformation model for solution to obtain the deformation of the bridge-tunnel structure, and numerical calculation methods such as Newton method and quasi-Newton method are used to solve.

[0047] Secondly, the tilt sensing module 107 is connected to the processor 103;

[0048] The tilt sensing module 107 is used to sense the angle change of the laser beam emission center position and upload the angle change to the processor 103 .

[0049] The inclination sensing module 107 uses an inclination sensor to sense the angle change of the center position of the laser beam emission, and uploads the angle value to the processor 103. The processor 103 retrieves the original data of the corresponding bridge and tunnel structure through angle value matching, and can then detect multiple angles, with a wider detection range and greater applicability.

[0050] At the same time, the temperature sensing module 108 is connected to the processor 103;

[0051] The temperature sensing module 108 is used to sense the temperature of the entire device and upload the temperature data to the processor 103 .

[0052] The temperature sensing module 108 senses the temperature of the entire device through a temperature sensor and uploads the temperature data value to the processor 103. If the temperature is too high, it will affect the normal use of the detection equipment. At this time, the processor 103 sends out an early warning message through the communication module 104 for the operator to discover and take protective measures in time.

[0053] An array laser detection device for deformation detection is used in the present embodiment. First, the inclination sensing module 107 senses the angle change of the laser beam emission center position, so that the processor 103 can retrieve the corresponding original data. Then, the laser beam emitting module 101 emits multiple laser beams toward the bridge and tunnel structure to be detected to form a laser array. The laser beam receiving module 102 receives the corresponding laser beams in turn. The processor 103 obtains laser scanning data, processes the data, and compares it with the original data to calculate the deformation of the bridge and tunnel structure. If the deformation exceeds the threshold, an early warning message is issued through the communication module 104 to inform the detection personnel to take precautions in time. A laser array is formed by using multiple laser emitters for detection. It is suitable for buildings of various shapes, realizes fast and high-precision deformation detection, improves detection efficiency, and reduces detection costs.

[0054] The second embodiment of the present application is:

[0055] Based on the first embodiment, please refer to Figures 2 to 4 ,in, Figure 2 It is a schematic structural diagram of an installation component according to a second embodiment of the present invention. Figure 3 It is a schematic structural diagram of a power component of the second embodiment of the present invention. Figure 42 is a cross-sectional view of a mounting assembly of a second embodiment of the present invention. The mounting assembly of this embodiment includes a mounting seat 201, a rotating shaft 202, an angle adjustment member and a rotating member, the angle adjustment member includes a fixed seat 203 and a power component, the rotating member includes a connecting shaft 204, a second motor 205 and a mounting plate 206, and the power component includes a turbine 207, a worm 208 and a first motor 209.

[0056] According to this specific embodiment, the mounting seat 201 is fixedly connected to the housing and is located on one side of the housing; the rotating shaft 202 is fixedly connected to the mounting seat 201 and passes through the mounting seat 201; the angle adjustment member is connected to the rotating shaft 202, and the rotating member is connected to the angle adjustment member. The mounting seat 201 is fixed to one side of the housing, the rotating shaft 202 passes through the mounting seat 201 and is fixedly connected to the mounting seat 201, the angle adjustment member drives the rotating shaft 202 to rotate, and then drives the mounting seat 201 and the housing to rotate to adjust the angle, and the rotating member drives the entire device to rotate horizontally.

[0057] The fixing seat 203 is rotatably connected to the rotating shaft 202, and the power component is connected to the rotating shaft 202. The fixing seat 203 is used to install the power component, and the power component drives the rotating shaft 202 to rotate.

[0058] Secondly, the turbine 207 is fixedly connected to the rotating shaft 202; the worm 208 is meshed with the turbine 207 and is rotationally connected to the fixing seat 203; the output end of the first motor 209 is fixedly connected to the worm 208. The first motor 209 is installed inside the fixing seat 203, driving the worm 208 to rotate, the worm 208 is meshed with the turbine 207, driving the turbine 207 to rotate, and then driving the rotating shaft 202 to rotate, realizing the rotation of the housing and adjusting the angle.

[0059] At the same time, the connecting shaft 204 is fixedly connected to the fixing seat 203 and is located on the side of the fixing seat 203 away from the rotating shaft 202; the output end of the second motor 205 is fixedly connected to the connecting shaft 204; the mounting plate 206 is fixedly connected to the second motor 205. The mounting plate 206 is used to be installed on a carrier so that the detection component in the housing can be aligned with the bridge and tunnel structure to be detected. The second motor 205 is fixed on the mounting plate 206 to drive the connecting shaft 204 to rotate. The connecting shaft 204 is fixedly connected to the fixing seat 203, thereby driving the housing to rotate, realizing multi-directional adjustment and performing detection.

[0060] Using an array laser detection device for deformation detection in accordance with the present embodiment, the mounting plate 206 is mounted on a carrier by bolts, so that the detection assembly in the outer shell is aligned with the bridge-tunnel structure with detection. When different positions of the bridge-tunnel structure need to be detected, the second motor 205 is driven to drive the connecting shaft 204 to rotate, and the direction of the outer shell is adjusted. At the same time, the first motor 209 is driven to drive the worm 208 to rotate, and the turbine 207 drives the rotating shaft 202 to follow the rotation, and the outer shell rotates to achieve angle adjustment, so that it is suitable for detection of different positions and different shapes, and has a wider range of uses.

[0061] The third embodiment of the present application is:

[0062] Based on the second embodiment, please refer to Figure 5 ,in, Figure 5 1 is a step diagram of a deformation detection array laser detection method according to a third embodiment of the present invention. The deformation detection array laser detection method according to this embodiment comprises the following steps:

[0063] S301: Each laser emitter of the laser beam emitting module 101 emits a laser beam to the bridge-tunnel structure to form a laser array;

[0064] S302: The laser beam receiving module 102 receives corresponding laser beams in sequence;

[0065] S303: The processor 103 acquires laser scanning data and processes the data;

[0066] S304: Compare the processed data with the original data of the bridge-tunnel structure to calculate the deformation of the bridge-tunnel structure. If the deformation exceeds a threshold, issue a warning message through the communication module 104.

[0067] Specifically, each laser emitter of the laser beam emitting module 101 emits a laser beam to the bridge-tunnel structure to form a laser array, and the laser beam receiving module 102 receives the corresponding laser beams in turn. The processor 103 obtains laser scanning data according to the emission time and reception time of the laser, obtains the three-dimensional coordinate information of the surface of the bridge-tunnel structure, and processes the data, including coordinate conversion, data filtering and other processing, compares the processed data with the original data of the bridge-tunnel structure, calculates the deformation of the bridge-tunnel structure, and adopts various algorithms and technologies such as differential method and least square method when calculating the deformation. If the deformation exceeds the threshold, the communication module 104 sends out an early warning message to inform the inspection personnel to make maintenance in time. By using the multi-angle emission of multiple laser emitters, the fast and high-precision deformation detection of irregular buildings and bridge-tunnel structures with a sense of design can be realized, which improves the detection efficiency and reduces the detection cost.

[0068] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An array laser detection device for deformation detection, comprising a housing, characterized in that: Also includes detection components and installation components; The detection component is connected to the housing, the mounting component is connected to the housing, the detection component includes a laser beam emitting module, a laser beam receiving module, a processor and a communication module, the laser beam emitting module is connected to the processor, the laser beam receiving module is connected to the processor, and the communication module is connected to the processor; The laser beam emitting module is composed of a plurality of laser emitters, each of which emits a laser beam to the bridge-tunnel structure to form a laser array; The laser beam receiving module is used to sequentially receive corresponding laser beams; The processor is used to obtain laser scanning data, process the data, and compare the processed data with the original data of the bridge-tunnel structure to calculate the deformation amount of the bridge-tunnel structure; The communication module is used to transmit the calculation results.

2. The array laser detection device for deformation detection according to claim 1, characterized in that: The processor comprises a data processing unit and a deformation detection unit, wherein the data processing unit is connected to the laser beam emitting module and the laser beam receiving module respectively, and the deformation detection unit is connected to the data processing unit; The data processing unit is used to perform coordinate conversion and data filtering on the acquired laser scanning data; The deformation detection unit is used to compare the processed data with the original data of the bridge-tunnel structure and calculate the difference between them, which is the deformation amount of the bridge-tunnel structure.

3. The array laser detection device for deformation detection according to claim 1, characterized in that: The detection component further includes a tilt sensing module, and the tilt sensing module is connected to the processor; The tilt angle sensing module is used to sense the angle change of the laser beam emission center position and upload the angle change to the processor.

4. The array laser detection device for deformation detection according to claim 1, characterized in that: The detection component also includes a temperature sensing module, and the temperature sensing module is connected to the processor; The temperature sensing module is used to sense the temperature of the entire device and upload the temperature data to the processor.

5. The array laser detection device for deformation detection according to claim 1, characterized in that: The mounting assembly includes a mounting seat, a rotating shaft, an angle adjustment member and a rotating member. The mounting seat is fixedly connected to the housing and is located on one side of the housing. The rotating shaft is fixedly connected to the mounting seat and passes through the mounting seat. The angle adjustment member is connected to the rotation shaft, and the rotating member is connected to the angle adjustment member.

6. The array laser detection device for deformation detection according to claim 5, characterized in that: The angle adjustment component includes a fixing seat and a power component. The fixing seat is rotatably connected to the rotating shaft; and the power component is connected to the rotating shaft.

7. A method for deformation detection using an array laser detection method, applicable to the deformation detection using an array laser detection device as claimed in claim 1, characterized in that: The following steps are involved: Each laser emitter of the laser beam emission module emits a laser beam to the bridge-tunnel structure to form a laser array; The laser beam receiving module receives the corresponding laser beams in sequence; The processor acquires laser scanning data and processes the data; The processed data is compared with the original data of the bridge-tunnel structure to calculate the deformation of the bridge-tunnel structure. If the threshold is exceeded, an early warning message is issued through the communication module.

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