Intelligent detection device for box girder reinforcement cage

Abstract

The utility model provides an intelligent detection device for a box girder reinforcement cage. The intelligent detection device comprises an AGV trolley and a measurement cabinet arranged at the top of the AGV trolley, a display and an operation panel are embedded in a cabinet door of the measuring cabinet; a central processing unit, an alarm element, a local storage element, a wireless transmission element and a vertically-arranged sliding rail are arranged in the measuring cabinet, a second sliding block is arranged on the sliding rail in a sliding mode, a walking driving device is arranged on the side portion of the second sliding block, and the walking driving device is used for driving the second sliding block to move up and down along the sliding rail; a second distance sensor is arranged at the bottom of the second sliding block, the second distance sensor is used for monitoring the distance between the second sliding block and the bottom of the measuring cabinet, and the second distance sensor is in signal connection with the central processing unit; a camera is arranged on the front side of the second sliding block, and the sliding rail, the camera and the avoiding groove correspond front and back. The central processing unit can accurately adjust the vertical position of the camera, so that the camera can complete multiple times of image and distance measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering measurement equipment, in particular to an intelligent detection device for a box beam steel bar skeleton. Background Art

[0002] In construction engineering surveys, concrete components are often interspersed with rebar. Rebar enhances the concrete's strength, safety, and durability, and can also improve the building's seismic resistance. During inspection and acceptance, strict quality standards are in place for the distance and angle between rebars. Therefore, during the fabrication of concrete components, a rebar spacing detection device is often used to measure the distance between rebars to ensure that the spacing complies with standards.

[0003] Patent application number 202311477254.8 discloses an automatic inspection device for the quality of steel bar skeleton binding, including a moving mechanism and a detection mechanism arranged above the moving wheel, the detection mechanism includes an external support mechanism and an internal shooting and processing mechanism; the shooting and processing mechanism includes a central controller and multiple cameras arranged inside the support mechanism, the cameras are connected to the central controller by signal, and a computing unit is arranged inside the central controller, and the computing unit runs an image-based steel bar skeleton binding quality inspection program.

[0004] Although this automatic inspection device for the quality of steel bar skeleton binding solves the problem that the distance between steel bars cannot be automatically measured, it still has the following problems when used: (1) The device uses multiple cameras fixed in the shell to shoot images to obtain image information at multiple positions and calculate the distance between steel bars through images. This layout method results in a high cost for cameras; (2) The device is not equipped with a distance detection device for the distance between the objects to be measured. During measurement, it is greatly affected by the direction of travel of the AGV car. When the direction of travel of the AGV car deviates due to an accident, the shooting angle of the camera will also change, which will affect the accuracy of the results of the subsequent calculation of the steel bar spacing through images. Utility Model Content

[0005] In order to solve the problem of high cost of multiple fixed cameras in an automatic inspection device for steel bar skeleton binding quality in the background art, the utility model proposes an intelligent detection device for box girder steel bar skeleton.

[0006] The technical solution of the utility model is: an intelligent detection device for box girder steel bar skeleton, comprising an AGV trolley and a measuring cabinet arranged on the top of the AGV trolley, wherein the AGV trolley can move in the left and right directions;

[0007] The front side of the measuring cabinet is hinged with a cabinet door that can be opened and closed. The cabinet door is embedded with a display and an operation panel. The middle part of the cabinet door is provided with an avoidance groove that extends in the vertical direction and is transparent from front to back.

[0008] The measuring cabinet is equipped with a central processing unit, an alarm component, a local storage component, a wireless transmission component and a vertically arranged slide rail. A second slider is slidably provided on the slide rail. A travel drive device is provided on the side of the second slider to drive the second slider to move up and down along the slide rail.

[0009] A second distance sensor is provided at the bottom of the second slider, and the second distance sensor is used to monitor the distance between the second slider and the bottom of the measuring cabinet, and the second distance sensor signal is connected to the central processing;

[0010] A camera is provided on the front side of the second sliding block, and the sliding rail, the camera and the avoidance groove correspond to each other front and back;

[0011] The camera is electrically connected to the AGV and the central processing unit, the display is electrically connected to the central processing unit, the operation panel is electrically connected to the central processing unit, the central processing unit is electrically connected to the alarm element, the local storage element, the wireless transmission element, and the walking drive device, and the wireless transmission element signal is connected to the cloud server.

[0012] Preferably, a ranging radar is provided on the second slider, and the ranging radar is electrically connected to the AGV trolley and the central processor.

[0013] Preferably, the top of the AGV trolley is rotatably connected to the bottom of the measuring cabinet, and an angle adjustment mechanism is provided on the top of the AGV trolley. The angle adjustment mechanism is used to drive the measuring cabinet to rotate to adjust the viewing angle of the camera, and the angle adjustment mechanism is electrically connected to the central processing unit.

[0014] Preferably, the angle adjustment mechanism includes an annular track fixed horizontally on the top of the AGV trolley, two first sliders slidably provided on the annular track and distributed at equal intervals, the top of the first slider is fixedly connected to a horizontally arranged first mounting plate, and the top of the first mounting plate is fixedly connected to the bottom of the measuring cabinet;

[0015] The angle adjustment mechanism also includes an angle adjustment motor fixed on the top of the AGV trolley. The angle adjustment motor is coaxially arranged with the circular track, and the output shaft of the angle adjustment motor is fixedly connected to the first mounting plate. The angle adjustment motor is electrically connected to the central processing unit.

[0016] Preferably, a support member is fixedly connected between the first mounting plate and the first slider, and distance sensors are provided on the front sides of the two support members. The two distance sensors are symmetrical about the camera, and the distance sensor signals are connected to the central processing unit.

[0017] Preferably, the top of the slide rail is fixedly connected to the top of the measuring cabinet, and vertical partitions are provided on both sides of the slide rail. The top of the partition is fixedly connected to the top of the measuring cabinet, and the bottoms of the two partitions are fixedly connected to the second mounting plate. The lower end of the slide rail is fixedly connected to the second mounting plate.

[0018] There are gaps between the left and right partitions and the left and right side panels of the adjacent measuring cabinet. A plurality of electrical component mounting plates arranged at intervals up and down are fixed on one side of the partition away from the slide rail.

[0019] The advantages of the present invention are as follows: the central processing unit transmits the distance between the second slider and the bottom of the measuring cabinet in real time through the second distance sensor, and can control the travel drive device to drive the slider to move upward from the lowest initial position multiple times by equal distances, so that the camera completes multiple image and distance measurements, so that the device only needs one camera to complete the image information acquisition of multiple positions, greatly reducing the overall cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the main structure of Example 1;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the internal frame of the measuring cabinet;

[0023] Figure 3 for Figure 1 A magnified view of the structure at point A;

[0024] In the figure, 1. AGV trolley, 2. circular track, 3. first slider, 4. first mounting plate, 401, support, 5. first distance sensor, 6. angle adjustment motor, 7. measuring cabinet, 8. cabinet door, 9. display, 10. operation panel, 11. avoidance groove, 12. first support frame, 13. central processing unit, 14. partition, 15. second mounting plate, 16. slide rail, 1601, slide groove, 17. second slider, 18. travel drive device, 19. camera, 20. ranging radar, 21. electrical component mounting plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1: An intelligent detection device for a box girder reinforcement skeleton, as shown in the figure, includes an AGV trolley 1 and a measuring cabinet 7 rotatably arranged on the top of the AGV trolley 1. The AGV trolley 1 can move in the left and right directions.

[0027] The top of the AGV trolley 1 is provided with an angle adjustment mechanism, which is used to drive the measuring cabinet 7 to rotate to adjust the viewing angle of the camera 19. The angle adjustment mechanism is electrically connected to the central processor 13. Specifically, Figure 1 and Figure 3 As shown, the angle adjustment mechanism includes a circular track 2 fixed horizontally on the top of the AGV trolley 1, and two first sliders 3 equidistantly distributed and slidingly provided on the circular track 2. The top of the first slider 3 is fixedly connected to the horizontally arranged first mounting plate 4, and the top of the first mounting plate 4 is fixedly connected to the bottom of the measuring cabinet 7.

[0028] The angle adjustment mechanism also includes an angle adjustment motor 6 fixed on the top of the AGV trolley 1. The angle adjustment motor 6 is coaxially arranged with the circular track 2, and the output shaft of the angle adjustment motor 6 is fixedly connected to the first mounting plate 4. The angle adjustment motor 6 is electrically connected to the central processor 13.

[0029] A support member 401 is fixedly connected between the first mounting plate 4 and the first slider 3 . A distance sensor 5 is provided on the front side of each of the two support members 401 . The two distance sensors 5 are symmetrical about the camera 19 . The signals of the distance sensors 5 are connected to the central processor 13 .

[0030] like Figure 1 and Figure 2 As shown, the front side of the measuring cabinet 7 is hinged with a cabinet door 8 that can be opened and closed, and a display 9 and an operation panel 10 are embedded on the cabinet door 8. The middle of the cabinet door 8 is provided with an avoidance groove 11 that extends in the up and down direction and is transparent from front to back.

[0031] like Figure 2 As shown, two first support frames 12 are fixedly connected to the inner bottom of the measuring cabinet 7 , and a detachable central processing unit 13 is provided on the top of the two first support frames 12 .

[0032] A vertically arranged slide rail 16 is fixedly connected to the inner top of the measuring cabinet 7, and a slide groove 1601 is provided on the slide rail 16. The slide groove 1601 is a dovetail groove structure. A second slider 17 is slidably provided on the slide rail 16, and the rear part of the second slider 17 is provided with an isosceles trapezoidal structure that cooperates with the slide groove 1601.

[0033] A travel drive device 18 is provided on the side of the second slider 17 to drive the second slider 17 up and down along the slide rail 16. The travel drive device 18 includes a drive motor fixed to the side of the second slider 17 and a travel wheel mounted on the output shaft of the drive motor. The travel wheel rolls against the side wall of the slide rail 16. The drive motor is electrically connected to the central processing unit 13.

[0034] A camera 19 and a ranging radar 20 are provided on the front side of the second slide 17. The slide rail 16, the camera 19, and the avoidance groove 11 are aligned front to back. The camera 19 and the ranging radar 20 are electrically connected to the AGV 1 and the CPU 13. The display 9 is electrically connected to the CPU 13, and the operation panel 10 is electrically connected to the CPU 13.

[0035] A second distance sensor (not shown) is provided at the bottom of the second slider 17 . The second distance sensor is used to monitor the distance between the second slider 17 and the bottom of the measuring cabinet 7 . The second distance sensor signal is connected to the central processing unit 13 .

[0036] There are vertically arranged partitions 14 on both sides of the slide rail 16. The top of the partition 14 is fixedly connected to the top of the measuring cabinet 7. The bottoms of the two partitions 14 are jointly fixedly connected to the second mounting plate 15. The lower end of the slide rail 16 is fixedly connected to the second mounting plate 15.

[0037] There are gaps between the left and right partitions 14 and the left and right side panels of the adjacent measuring cabinet 7 . A plurality of electrical component mounting plates 21 spaced apart from each other are fixed on one side of the partition 14 away from the slide rail 16 .

[0038] The measuring cabinet 7 is provided with an alarm component, a local storage component, and a wireless transmission component (not shown in the figure), wherein the alarm component, the local storage component, and the wireless transmission component are detachably mounted on each electrical component mounting plate 21 .

[0039] The central processing unit 13 is electrically connected to the alarm element, the local storage element, the wireless transmission element, and the travel drive device 18, and the wireless transmission element signal is connected to the cloud server.

[0040] Working principle: Before the measurement starts, the display 9 and the operation panel 10 can conveniently control the travel path and behavior of the AGV car 1, and can display the measurement image collected by the camera 19, the ranging data of the ranging radar 20, the ranging data of the second distance sensor, the two ranging data of the left and right first ranging sensors and the measurement data processed by the central processor 13 to facilitate human-computer interaction.

[0041] During the measurement image acquisition, distance data acquisition and processing stages, when the AGV 1 moves to the predetermined measurement position, the camera 19 is used to receive the trigger signal sent by the AGV 1, acquire distance data, adjust the orientation of the measuring cabinet 7 (which drives the camera 19), adjust the height of the camera 19, and acquire the measurement image with the steel bars.

[0042] The difference between the two distance measurement data of the left and right first distance measurement sensors (and the distance measurement data between the measured object) is used for the central processor 13 to control the angle adjustment motor 6 to adjust the orientation angle of the measuring cabinet 7, and then adjust the orientation angle of the camera 19 so that the shooting angle of the camera 19 is facing the measured object.

[0043] The distance between the second slider 17 and the bottom of the measuring cabinet 7 collected by the second distance sensor is transmitted to the central processor 13, so that the central processor 13 can adjust the upper and lower positions of the camera 19 by controlling the travel drive device 18 to obtain multi-position image information.

[0044] The function of the ranging radar 20 is, firstly, to measure the current vertical distance between it and the object being measured, so as to provide distance data for the subsequent calculation of the distance between two steel bars through images; secondly, to measure the relative distance between multiple steel bars by the duration of the radio waves returned from different steel bars, so as to make a comprehensive comparison with the relative distance between multiple steel bars calculated through images later, thereby improving the accuracy of the data.

[0045] The central processing unit 13 processes the measurement image sent by the camera 19 to determine the spacing and angle of the steel bars in the measurement image, thereby calculating the spacing D1, D2 and the angle α of the steel bars on the measurement image.

[0046] During the actual measurement process, the AGV trolley 1 first drives the measuring cabinet 7 as a whole to the measuring position, and then sends a trigger signal to the camera 19. The central processing unit 13 first controls the angle adjustment motor 6 to adjust the orientation angle of the measuring cabinet 7 through the difference between the two ranging data of the left and right first ranging sensors (and the ranging data between the measured object).

[0047] After the orientation angle adjustment of the measuring cabinet 7 is completed, the central processing unit 13 transmits the distance between the second slider 17 and the bottom of the measuring cabinet 7 in real time through the second distance sensor, controls the walking drive device 18 to drive the slider 17 to move to the lowest initial position, and then controls the camera 19 to capture images and the ranging radar 20 to emit radio waves for distance measurement, completing the image and distance measurement of the initial position, and transmitting the collected image data and distance data to the central processing unit 13 for processing and displaying them on the display 9.

[0048] Then, the central processing unit 13 controls the travel drive device 18 again to drive the slider 17 to move upward multiple times at equal distances, so that the camera 9 completes multiple image and distance measurements, and transmits the image data and distance data collected each time to the central processing unit 13 for processing and display on the display 9.

[0049] Using the image data, the CPU 13, in conjunction with the visual algorithms within its processor, measures the distance D1 between two adjacent longitudinal groups of thin rebars in the second layer, as well as the distance D2 between two adjacent transverse rebars in the inner layer. Furthermore, the CPU 13 measures the angle α between the inner transverse rebars and the vertical direction, ultimately determining the spacing and angle of the rebars in the image. This is then compared with the relative distance data between the rebars measured by the ranging radar 20. If the error is too large, the CPU 13 performs a new measurement and calculation.

[0050] When measuring each point, the central processor 13 needs to determine whether the measurement data is within the error range of the preset value. When the measurement data is unqualified, it is necessary to control the alarm element to execute an alarm reminder so as to adjust the steel bar binding position in time.

[0051] To facilitate data traceability, the local storage component records production status data in real time, including measurement data processed by the central processor 13 and abnormal data compared with preset values, and saves it to an offline file. When the transmission signal is connected, the reserved data in the local storage component is uploaded to the cloud server via the wireless transmission component, facilitating the integration of the measurement images automatically generated by the inspection with the measurement data, so as to generate reports in the format provided by the quality inspection department and directly import them into the smart platform and mobile terminal.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is determined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An intelligent detection device for box girder steel frame, characterized by: The AGV comprises an AGV trolley (1) and a measuring cabinet (7) arranged on the top of the AGV trolley (1), wherein the AGV trolley (1) is capable of moving in the left and right directions; The front side of the measuring cabinet (7) is hinged with a cabinet door (8) that can be opened and closed, and a display (9) and an operation panel (10) are embedded in the cabinet door (8). A avoidance groove (11) extending in the vertical direction and transparent in the front and back is opened in the middle of the cabinet door (8); A central processing unit (13), an alarm element, a local storage element, a wireless transmission element, and a vertically arranged slide rail (16) are provided in the measuring cabinet (7); a second slider (17) is slidably provided on the slide rail (16); a travel drive device (18) is provided on the side of the second slider (17); the travel drive device (18) is used to drive the second slider (17) to move up and down along the slide rail (16); A second distance sensor is provided at the bottom of the second slider (17), and the second distance sensor is used to monitor the distance between the second slider (17) and the bottom of the measuring cabinet (7). The second distance sensor signal is connected to the central processing unit (13); A camera (19) is provided on the front side of the second sliding block (17), and the sliding rail (16), the camera (19) and the avoidance groove (11) correspond to each other front and back; The camera (19) is electrically connected to the AGV (1) and the central processing unit (13), the display (9) is electrically connected to the central processing unit (13), the operation panel (10) is electrically connected to the central processing unit (13), the central processing unit (13) is electrically connected to the alarm element, the local storage element, the wireless transmission element, and the travel drive device (18), and the wireless transmission element signal is connected to the cloud server.

2. The intelligent detection device for box girder reinforcement skeleton according to claim 1, characterized in that: A distance measuring radar (20) is provided on the second slider (17), and the distance measuring radar (20) is electrically connected to the AGV trolley (1) and the central processing unit (13).

3. The intelligent detection device for box girder reinforcement skeleton according to claim 1, characterized in that: The top of the AGV trolley (1) is rotatably connected to the bottom of the measuring cabinet (7). The top of the AGV trolley (1) is provided with an angle adjustment mechanism, which is used to drive the measuring cabinet (7) to rotate to adjust the viewing angle of the camera (19). The angle adjustment mechanism is electrically connected to the central processing unit (13).

4. The intelligent detection device for box girder reinforcement skeleton according to claim 3, characterized in that: The angle adjustment mechanism comprises an annular track (2) fixedly arranged horizontally on the top of the AGV trolley (1), two first sliders (3) slidably arranged at equal intervals on the annular track (2), the tops of the first sliders (3) being fixedly connected to a first mounting plate (4) arranged horizontally, and the tops of the first mounting plate (4) being fixedly connected to the bottom of the measuring cabinet (7); The angle adjustment mechanism further includes an angle adjustment motor (6) fixedly arranged on the top of the AGV trolley (1), the angle adjustment motor (6) and the annular track (2) are coaxially arranged, and the output shaft of the angle adjustment motor (6) is fixedly connected to the first mounting plate (4), and the angle adjustment motor (6) is electrically connected to the central processing unit (13).

5. The intelligent detection device for box girder reinforcement skeleton according to claim 4, characterized in that: A support member (401) is fixedly connected between the first mounting plate (4) and the first slider (3). Distance sensors (5) are provided on the front sides of the two support members (401). The two distance sensors (5) are symmetrical about the camera (19). Signals of the distance sensors (5) are connected to the central processing unit (13).

6. The intelligent detection device for box girder reinforcement skeleton according to claim 1, characterized in that: The top of the slide rail (16) is fixedly connected to the top of the measuring cabinet (7), and vertical partitions (14) are provided on both sides of the slide rail (16). The top of the partition (14) is fixedly connected to the top of the measuring cabinet (7), and the bottoms of the two partitions (14) are fixedly connected to the second mounting plate (15). The lower end of the slide rail (16) is fixedly connected to the second mounting plate (15); There is a gap between the left and right partitions (14) and the left and right side plates of the adjacent measuring cabinet (7), and a plurality of electrical component mounting plates (21) are fixedly provided at intervals on one side of the partition (14) away from the slide rail (16).

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