Component deformation cloud picture digital imaging acquisition system

Abstract

The utility model provides a component deformation cloud picture digital imaging acquisition system, which belongs to the field of civil engineering deformation monitoring devices and comprises a component device, a binocular industrial camera, a camera supporting device, a data acquisition unit, a computer and a data line. The binocular industrial camera is arranged at the front end of the component device and is used for carrying out video acquisition on the vertically arranged component device, the input end of the data acquisition unit is connected with the binocular industrial camera, the output end of the data acquisition unit is connected with the computer, and the computer is connected with the binocular industrial camera through a data line. The binocular industrial camera is used for completing 3D-DIC to collect displacement and deformation of the concrete stand column when the concrete stand column is pressed, meanwhile, the change of each time can be collected in real time in a 360-degree mode without dead angles, corresponding video data are provided for subsequent imaging, and the device has the advantages of being convenient to detect, low in cost and accurate in detection data.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering deformation monitoring devices, in particular to a component deformation cloud map digital imaging acquisition system. Background Art

[0002] With the proposal of the national strategic new infrastructure, new technologies with new infrastructure as the core are driving a new round of scientific and technological revolution and industrial transformation. The construction, operation and maintenance of transportation infrastructure (roads, bridges, tunnels) belong to the category of traditional industries and are undergoing continuous transformation with information, digitalization and intelligent technologies.

[0003] When structural components are subjected to loads or other external forces, displacement and other deformations will occur, which may cause a series of problems such as zipper damage. This project uses non-contact visual sensors to obtain video footage or images of key parts of structural components, and then performs DIC deformation tests based on the obtained video footage. Through GPU parallel computing and CPU computing, after full-pixel and sub-pixel iterative analysis, the displacement time history and spectrum of the cable are obtained to achieve the purpose of accurately analyzing the cable strain.

[0004] At present, the traditional structural stress monitoring methods mainly include hydraulic pressure gauge measurement method, through-hole pressure sensor measurement, and traditional contact frequency method. Among them, the hydraulic pressure gauge measurement method requires the use of a large hydraulic pressure measuring instrument, which is bulky and inconvenient to move. It cannot realize real-time field testing of the building and can only be tested during the construction test phase, resulting in a large error between the measured data and the data in actual use. Through-hole pressure sensor measurement, the finished resistive pressure sensors or other types of sensors on the market are products with independent intellectual property rights, and the prices are generally high. In the case of large demand at the construction site of prestressed bridge structures, the cost of equipment matched with resistive pressure sensors is often high. Resistive pressure sensors are usually under a very high pressure state, and the conditions of use at the construction site are poor. Therefore, it is easy to cause serious losses. Once a failure occurs, it often needs to be mailed back to the corresponding company, and then they will conduct inspection and debugging. The processing time is long and the cost is high, which is not conducive to the progress of the construction project. Due to the complex actual construction conditions, ordinary pressure sensors may not be able to meet the needs of the project. For example, for T-beams with larger spans, uncommon large-diameter steel strands are used, or for situations that often occur in practice such as the simultaneous tensioning of multiple strands of steel strands, the inner diameter of ordinary through-type sensors may not be able to meet the requirements. The traditional contact frequency method requires the arrangement of a vibration pickup to pick up the vibration response of the cable. The wiring process is very troublesome, and many workers are required to cooperate in the construction. The labor cost is very high. More importantly, the vibration displacement cannot be synchronized during the test. Therefore, it is necessary to design a component deformation cloud map digital imaging acquisition system. Utility Model Content

[0005] The purpose of the utility model is to provide a component deformation cloud map digital imaging acquisition system to solve the technical problems of the existing component deformation detection difficulty, high cost and inconvenience. During the process of use and bearing load, the construction engineering components will experience creep, which will cause the component to gradually deform as a whole or in part, and then the bearing capacity of the component will decrease or even be lost, resulting in deformation or even destruction of the building.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A component deformation cloud map digital imaging acquisition system comprises a component device, a binocular industrial camera, a camera support device, a data collector, a computer and a data cable. The binocular industrial camera is arranged at the upper end of the camera support device, the binocular industrial camera is arranged at the front end of the component device, and the video of the vertically placed component device is collected. The input end of the data collector is connected to the binocular industrial camera, the output end of the data collector is connected to the computer, and the computer is connected to the binocular industrial camera via the data cable.

[0008] Furthermore, the camera supporting device includes a gimbal, a central axis, a top cover and a supporting foot device. The supporting foot device is arranged at the bottom of the top cover. The central axis passes through the top cover and is connected to the bottom of the gimbal by bolts. The gimbal controls the rotation of the central axis by adjusting the bolts. The central axis can be freely raised and lowered within a set fixed length, thereby ensuring that there is no obstruction between the binocular industrial camera and the component device.

[0009] Furthermore, the supporting leg device includes three leg tubes, the three leg tubes are arranged in a three-pronged structure, a bottom foot is arranged at the bottom of the leg tube, and a foot lock is arranged between the leg tube and the bottom foot.

[0010] Furthermore, the binocular industrial camera is connected to the pan / tilt head through a connector using bolts, and the binocular industrial camera can rotate freely to record changes in components at different angles.

[0011] Furthermore, the bottom foot is inserted into the bottom of the leg tube, and the leg tube is fixed by a foot lock at the middle of the leg tube to ensure the overall stability of the bracket.

[0012] Furthermore, the component device includes a component and two horizontal steel plates, and the two horizontal steel plates are respectively arranged at the upper end and the lower end of the component.

[0013] Two micrometers and four sensors are respectively arranged on both sides of the component, and four sensors are arranged at the rear end of the component.

[0014] Furthermore, the measurement data of the binocular industrial camera is received and transmitted via a data line, the data collector is used to store the measurement data of the binocular industrial camera, and the computer receives the measurement data and obtains calculation result data after calculating according to the existing method.

[0015] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0016] (1) The utility model uses a binocular industrial camera to complete 3D-DIC to collect the displacement and deformation of the concrete column when it is under pressure. At the same time, it can collect each change in real time at 360 degrees without blind spots, so as to provide corresponding video data for subsequent imaging. It has the advantages of convenient detection, low cost and accurate detection data.

[0017] (2) During the measurement process, a high-speed camera is used to continuously photograph the object, and then a computer is used to process and analyze the image to obtain information such as the shape, displacement, and deformation of the object's surface. The shape, displacement, and deformation of the material surface can be measured and analyzed with high precision and high resolution.

[0018] (3) By setting the central axis and the gimbal together, the binocular industrial camera can rotate without blind spots, which can better collect the image information of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the system structure diagram of the utility model;

[0020] Figure 2 It is a three-view drawing of the component of the utility model.

[0021] In the attached figure, 1-binocular industrial camera, 2-pan head, 3-central axis, 4-top cover, 5-leg tube, 6-foot lock, 7-bottom foot, 8-data collector, 9-computer, 10-data cable, 11-component. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.

[0023] like Figure 1-2 As shown, a component deformation cloud map digital imaging acquisition system includes a component device, a binocular industrial camera 1, a camera support device, a data collector 8, a computer 9 and a data line 10. The binocular industrial camera 1 is arranged at the upper end of the camera support device, and the binocular industrial camera 1 is arranged at the front end of the component device to perform video acquisition on the vertically placed component device. The input end of the data collector 8 is connected to the binocular industrial camera 1, and the output end of the data collector 8 is connected to the computer 9. The computer 9 is connected to the binocular industrial camera 1 via the data line 10.

[0024] In an embodiment of the utility model, the camera supporting device includes a pan head 2, a central axis 3, a top cover 4 and a supporting foot device. The supporting foot device is arranged at the bottom of the top cover 4. The central axis 3 passes through the top cover 4 and is connected to the bottom of the pan head 2 by bolts. The pan head 2 controls the rotation of the central axis 3 by adjusting the bolts. The central axis 3 can be freely raised and lowered within a set fixed length, thereby ensuring that there is no obstruction between the binocular industrial camera 1 and the component device.

[0025] In the embodiment of the utility model, Figure 1 As shown, the supporting leg device includes three leg tubes 5, which are arranged in a three-pronged structure. A bottom foot 7 is arranged at the bottom of the leg tube 5, and a foot lock 6 is arranged between the leg tube 5 and the bottom foot 7.

[0026] The binocular industrial camera 1 is connected to the pan / tilt 2 by bolts through a connector. The binocular industrial camera 1 can rotate freely to record changes in components at different angles. The foot 7 is inserted into the bottom of the leg tube 5, and the leg tube 5 is fixed by the foot lock 6 in the middle of the leg tube 5 to ensure the overall stability of the bracket. The component device includes a component 11 and two horizontal steel plates, which are respectively arranged at the upper end and the lower end of the component 11.

[0027] The binocular industrial camera 1 is connected to the pan / tilt 2 through a connector by bolts. The binocular industrial camera 1 can rotate freely. The pan / tilt 2 is connected to the central axis 3 by bolts, and the rotation of the central axis 3 can be controlled by adjusting the bolts. The central axis 3 can be freely raised and lowered within a certain length. The central axis 3 and the three leg tubes 5 are connected together by the top cover 4. The bottom foot 7 is inserted into the bottom of the leg tube 5. The leg tube is fixed by the foot lock 6 in the middle of the leg tube 5. The data collector 8 is connected to the binocular industrial camera through the data line 10, and the computer 9 calculates and corrects the deformation of the target point.

[0028] The binocular industrial camera 1 is set as an external trigger, the computer 9 is set as an external trigger, and the data collector 8 is set as an external trigger. The binocular industrial camera 1 is used to capture images of the observation point, and can achieve 360° rotation left and right and 360° flip front and back, so as to realize monitoring of the observation point at different angles.

[0029] The falling weight exerts pressure on the component, the component 11 is deformed, and a signal is transmitted to the binocular industrial camera 1 through the computer. The binocular industrial camera 2 starts to capture the digital speckle image and dynamic photoelastic fringe image data of the whole fracture process of the component 11. At the same time, the binocular industrial camera 1 transmits a trigger signal to the data collector 8 through the signal line 10, and stores the image data in the data collector 8. The data is processed by the existing sub-pixel method in the computer 9 to complete the imaging.

[0030] like Figure 2 As shown, two micrometers and four sensors are respectively arranged on both sides of the component, and four sensors are arranged at the rear end of the component.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A component deformation cloud map digital imaging acquisition system, characterized by: The device comprises a component device, a binocular industrial camera (1), a camera support device, a data collector (8), a computer (9) and a data cable (10), wherein the binocular industrial camera (1) is arranged at the upper end of the camera support device, the binocular industrial camera (1) is arranged at the front end of the component device, and performs video acquisition on the vertically placed component device, the input end of the data collector (8) is connected to the binocular industrial camera (1), the output end of the data collector (8) is connected to the computer (9), and the computer (9) is connected to the binocular industrial camera (1) via the data cable (10).

2. A component deformation cloud map digital imaging acquisition system according to claim 1, characterized in that: The camera support device comprises a pan head (2), a middle axis (3), a top cover (4) and a support foot device, wherein the support foot device is arranged at the bottom of the top cover (4), the middle axis (3) passes through the top cover (4) and is connected to the bottom of the pan head (2) by bolts, the pan head (2) controls the rotation of the middle axis (3) by adjusting the bolts, and the middle axis (3) is freely raised and lowered within a set fixed length, thereby ensuring that there is no obstruction between the binocular industrial camera (1) and the component device.

3. The component deformation cloud map digital imaging acquisition system according to claim 2 is characterized by: The supporting foot device comprises three leg tubes (5), the three leg tubes (5) are arranged in a three-pronged structure, a bottom foot (7) is arranged at the bottom of the leg tube (5), and a foot lock (6) is arranged between the leg tube (5) and the bottom foot (7).

4. The component deformation cloud map digital imaging acquisition system according to claim 1, characterized in that: The binocular industrial camera (1) is connected to the pan / tilt head (2) via a connecting piece using bolts. The binocular industrial camera (1) can rotate freely to record changes of components at different angles.

5. The component deformation cloud map digital imaging acquisition system according to claim 3 is characterized by: The bottom foot (7) is inserted into the bottom of the leg tube (5), and the leg tube (5) is fixedly arranged at the middle position of the leg tube (5) through the foot lock (6), so as to ensure the stability of the whole support.

6. The component deformation cloud map digital imaging acquisition system according to claim 1 is characterized by: The component device comprises a component (11) and two horizontal steel plates, wherein the two horizontal steel plates are respectively arranged at the upper end and the lower end of the component (11).

7. The component deformation cloud map digital imaging acquisition system according to claim 6, characterized in that: Two micrometers and four sensors are respectively arranged on both sides of the component (11), and four sensors are arranged at the rear end of the component (11).

8. The component deformation cloud map digital imaging acquisition system according to claim 7 is characterized by: The measurement data of the binocular industrial camera (1) is received and transmitted via a data line (10); the data collector (8) is used to store the measurement data of the binocular industrial camera (1); and the computer (9) receives the measurement data and obtains calculation result data by calculating according to an existing method.

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