Wall crack exploration device based on computer vision and use method

Abstract

The invention belongs to the technical field of wall crack detection, particularly relates to a wall crack detection device based on computer vision and a use method, and aims at solving the problems that in the prior art, when a wall is detected, manual climbing and handheld detection are needed in an existing technical scheme, potential safety hazards and inconvenience exist, and when the wall is detected, the detection time is short. In order to overcome the defects that a crack cannot be observed in real time in the prior art, an exploration device comprises a movable base, a pushing frame is fixedly installed on one side of the top of the movable base, the exploration device further comprises a supporting mechanism, and the supporting mechanism is installed on one side of the top of the movable base. Therefore, the detection camera can move along the crack direction so as to comprehensively shoot and detect the crack, and the shot picture can be transmitted to the display screen, so that a worker can conveniently observe the crack in real time, and the crack can be accurately detected.

Description

Technical Field

[0001] The present invention relates to the technical field of wall crack detection, and in particular to a wall crack detection device based on computer vision and a use method thereof. Background Art

[0002] As the load-bearing unit of a house, the wall plays a vital role in the construction of the house. Cracks in the wall will affect the durability and appearance of the house. Crack detection devices are often used when testing the quality of the house. For example, the announcement number is: CN 212932501 U discloses a wall crack detection device. The technical effect of this technical solution is: it is protected by a box, which is convenient for organization and carrying. When in use, two probes are put on both ends of the bracket, and the distance between the two probes is adjusted, so that the tester holds the crack depth tester in one hand and the bracket in the other hand, so that the two probes on it are in contact with the wall, which is convenient for detection, and the detection process can be continuously moved to detect cracks in different positions. However, when using this technical solution to detect wall cracks, there are still the following deficiencies:

[0003] 1. The above technical solution needs to use manual hand-held method to detect cracks. However, when cracks appear on the upper part of the wall, technicians often have to climb up to detect them. However, this method will cause certain inconvenience and danger when technicians operate.

[0004] 2. Furthermore, when detecting cracks in the wall, the specific conditions of the cracks cannot be observed in real time, making it inconvenient to detect the cracks.

[0005] In response to the above problems, the present invention document proposes a wall crack detection device and a method of use based on computer vision. Summary of the invention

[0006] The present invention provides a wall crack detection device based on computer vision and a method for using the same, which solves the problems in the prior art that, when inspecting walls, the existing technical solution requires manual climbing for handheld inspection, which poses safety hazards and inconveniences, and the cracks cannot be observed in real time when inspecting walls.

[0007] The present invention provides the following technical solutions:

[0008] A wall crack detection device based on computer vision includes a mobile base, a push frame is fixedly installed on one side of the top of the mobile base, and the detection device also includes:

[0009] A supporting mechanism, the supporting mechanism is installed on one side of the top of the mobile base;

[0010] A detection mechanism, which is installed on the supporting mechanism and is used to photograph and detect cracks generated on the wall;

[0011] A power mechanism, which is installed on the supporting mechanism and is used to drive the supporting mechanism to extend and retract;

[0012] The adjusting mechanism is installed on the top of the mobile base, the top of the adjusting mechanism is connected to the detecting mechanism, the adjusting mechanism is connected to the supporting mechanism, the adjusting mechanism is used to adjust the lateral position of the detecting mechanism, a display screen is installed on the adjusting mechanism, and the display screen is connected to the detecting mechanism.

[0013] In a possible design, the support mechanism includes a support frame fixedly mounted on one side of the top of the mobile base, a limit ring is slidably connected inside the support frame, a support ring is fixedly mounted on the top of the support frame, two bent rods are symmetrically fixedly mounted on the top of the limit ring, and the top ends of the two bent rods both penetrate the support ring and extend to the top of the support ring, the top ends of the two bent rods are connected to the detection mechanism, the power mechanism is mounted on the support frame, and one side of the power mechanism extends into the support frame and is connected to the limit ring.

[0014] In a possible design, the detection mechanism includes a rectangular frame fixedly mounted on the top ends of two bent rods, a movable plate slidably connected through the rectangular frame, a detection camera fixedly mounted on one side of the movable plate, the detection camera is used to photograph and detect cracks generated on the wall, the detection camera is electrically connected to the display screen, and a connecting plate is fixedly mounted on the other side of the movable plate, and the connecting plate is connected to the adjustment mechanism.

[0015] In a possible design, the power mechanism includes a first screw rod and a second screw rod which are respectively rotatably connected to the support frame, two nuts are symmetrically fixedly installed at the bottom of the limit ring, the top of the first screw rod and the top of the second screw rod respectively penetrate the corresponding nut, the limit ring and the support ring and extend to the top of the support ring, the top of the first screw rod and the top of the second screw rod are installed with the same belt assembly, a mounting plate is fixedly installed on the top of one side of the support frame, a driving motor is fixedly installed on the bottom of the mounting plate, the output shaft of the driving motor extends to the top of the mounting plate and is fixedly installed with a driving gear, and a driven gear located above the support ring is fixedly sleeved on the first screw rod, and the driving gear is meshed with the driven gear.

[0016] In a possible design, the belt assembly includes two synchronous wheels fixedly mounted on the top end of the first screw rod and the top end of the second screw rod respectively, and the transmission sleeves on the two synchronous wheels are provided with the same synchronous belt.

[0017] In one possible design, the adjustment mechanism includes a mounting frame fixedly mounted on the top of the mobile base, a fixing frame fixedly mounted on the top of the mounting frame, a mounting assembly mounted on the top of one side of the fixing frame, a display screen mounted on the mounting assembly, a rotating shaft rotatably connected to the inner wall of the top of the fixing frame, a gear column fixedly sleeved on the rotating shaft, the bottom end of the rotating shaft extends into the mounting frame, a fixing plate is fixedly mounted on one side of the support ring, a sleeve is rotatably connected to the bottom of the fixing plate, a Z-shaped rod is slidably connected through the sleeve, a slide plate is rotatably connected to the top of the Z-shaped rod, and a transmission ring is fixedly mounted on the bottom of the connecting plate, the top of the slide plate extends into the transmission ring, the slide plate is slidably connected to the inner wall of the transmission ring, an adjusting gear is fixedly mounted on the bottom end of the Z-shaped rod, and the adjusting gear is meshed with the gear column.

[0018] In a possible design, a swing rod is fixedly installed on the bottom end of the rotating shaft, an adjustment hole is opened on the inner wall of one side of the mounting frame, one end of the swing rod passes through the adjustment hole and extends to the outside of the mounting frame, a plug rod located on the outside of the mounting frame is slidably connected through the swing rod, an arc plate is fixedly installed on the top of the movable base, a plurality of slots are opened at equal intervals on the top of the arc plate, the plug rods are movably engaged with the plurality of slots, a compression spring located under the swing rod is sleeved on the plug rod, the top and bottom ends of the compression spring are fixedly connected to the bottom of the swing rod and the plug rod respectively, and a first hand wheel is fixedly installed on the top of the plug rod.

[0019] In one possible design, the mounting assembly includes a U-shaped frame fixedly mounted on the top of one side of a fixed frame, a support shaft fixedly mounted inside the U-shaped frame, a gear frame rotatably sleeved on the support shaft, a display screen fixedly mounted on one side of the gear frame, a rack slidingly connected through the U-shaped frame, the rack meshing with the gear frame, a transmission component mounted at the bottom of the rack, and the transmission component mounted on one side of the fixed frame and connected.

[0020] In a possible design, the transmission component includes a limit frame fixedly mounted on one side of the fixed frame, the limit frame passes through a driving shaft and is rotatably connected, one end of the driving shaft is rotatably connected to one side of the fixed frame, a driving bevel gear located in the limit frame is fixedly sleeved on the driving shaft, and an adjusting screw passes through and is rotatably connected to the limit frame, a driving bevel gear is fixedly mounted on the bottom end of the adjusting screw, the driving bevel gear is meshed with the driving bevel gear, an adjusting plate is fixedly mounted on the bottom end of the rack, a threaded ring is fixedly mounted on the top of the adjusting plate, the adjusting screw passes through the adjusting plate and the threaded ring respectively and is threadably connected to the threaded ring, and a second hand wheel is fixedly mounted on the other end of the driving shaft.

[0021] The method for using the wall crack detection device based on computer vision comprises the following steps:

[0022] S1. First, push the device to the wall that needs to be tested;

[0023] S2. Then the driving motor can be started to drive the driving gear to rotate. At this time, the first screw can be driven to rotate under the meshing transmission action with the driven gear. When the first screw rotates, the second screw can be driven to rotate simultaneously and in the same direction as the first screw under the transmission action of the two synchronous wheels and the synchronous belt, so that the limit ring can be driven to move longitudinally stably under the transmission action of the corresponding nut, thereby driving the two bent rods to move longitudinally, so that the height of the detection camera can be adjusted, so that when cracks are detected, the height of the detection camera can be adjusted according to the height of the cracks;

[0024] S3, then pull the first hand wheel upward to drive the plug rod to move upward, so that the plug rod is moved out of the corresponding slot, and when the plug rod moves upward, the compression spring can be compressed, and then the first hand wheel is pushed horizontally to drive the plug rod to move, at this time, the swing rod can be driven to move, that is, the gear column can be driven to rotate through the rotating shaft, so that the Z-shaped rod can be driven to rotate and adjust under the meshing transmission action with the adjusting gear, and the Z-shaped rod in the rotating state can drive the slide plate to perform arc movement, so that the connecting plate can be driven to move horizontally under the sliding cooperation with the transmission ring, so that the detection camera can be driven to move horizontally, and when the cracks on the wall are irregular, the longitudinal movement of the bent rod can be coordinated, and the height and lateral position of the detection camera can be conveniently adjusted, so that the position of the detection camera can be adjusted in real time according to the trajectory of the crack, so that the detection camera can comprehensively shoot and detect the crack, and the crack picture after shooting can be transmitted to the display screen, and the processor in the display screen is used to measure the displayed crack picture, and the measured data is displayed;

[0025] S4. When the lateral position of the detection camera needs to be limited, the first hand wheel can be released, and the compression spring under stress can push the insertion rod to move downward, so that the insertion rod is inserted into the corresponding slot, and the position of the gear column can be limited;

[0026] S5. When the angle of the display screen needs to be adjusted, the driving shaft can be driven to rotate by turning the second hand wheel. At this time, the adjusting screw can be driven to rotate under the meshing transmission action of the driving bevel gear and the transmission bevel gear. When the adjusting screw rotates, the adjusting plate can be driven to move longitudinally along the axial direction of the adjusting screw under the threaded transmission action of the threaded ring, thereby driving the rack to move longitudinally. At this time, under the meshing transmission action with the gear rack, the gear rack can be driven to rotate, thereby adjusting the angle of the display screen, so that when the staff is watching the display screen, they can adjust the display screen to a position that suits the staff's viewing angle, providing certain convenience for the staff.

[0027] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0028] Beneficial effects: In the present invention, by setting up the support mechanism, the sliding connection between the support frame and the limiting ring can be utilized to perform longitudinal sliding limiting on the two bent rods, and after the limiting ring is driven by the power mechanism, it can move longitudinally along the support frame, so that the height of the detection mechanism can be adjusted, so that when detecting cracks generated on the wall, the detection mechanism can be conveniently moved and adjusted along the longitudinal direction of the cracks, so that the cracks can be photographed and detected;

[0029] In the present invention, through the detection mechanism, the movable plate can be connected to the rectangular frame in a transverse sliding manner, so as to support the detection camera in a horizontal sliding manner, and after the connecting plate receives the driving force of the adjustment mechanism, it can drive the movable plate to move and adjust along the transverse direction of the rectangular frame, so as to adjust the transverse position of the detection camera. When the cracks on the wall are irregular, the longitudinal movement of the bent rod can be coordinated to facilitate the adjustment of the height and transverse position of the detection camera, so that the position of the detection camera can be adjusted in real time according to the trajectory of the crack, so that the detection camera can comprehensively shoot and detect the crack.

[0030] In the present invention, the power mechanism is set up, and the driving gear can be driven to rotate by starting the driving motor. At this time, the first screw can be driven to rotate under the meshing transmission action with the driven gear. When the first screw rotates, the second screw can be driven to rotate simultaneously with the first screw through the belt assembly. When the first screw and the second screw rotate, the limit ring can be driven to move longitudinally under the thread transmission action of the corresponding nut, thereby driving the two bent rods to move longitudinally, so that the height of the detection camera can be adjusted;

[0031] In the present invention, a gear column can be installed on the rotating shaft through the setting of the adjustment mechanism. At this time, when the connecting plate moves longitudinally, the sliding connection between the transmission ring and the slide plate can drive the Z-shaped rod to move longitudinally. At this time, the height of the adjusting gear can be adjusted, and the adjusting gear that moves longitudinally can always maintain a meshing transmission with the gear column. Therefore, when the gear column rotates, the Z-shaped rod can be driven to rotate under the meshing transmission action with the adjusting gear. The Z-shaped rod in the rotating state can drive the slide plate to move in an arc, so that the connecting plate can be driven to move laterally under the sliding cooperation with the transmission ring, thereby driving the detection camera to move laterally.

[0032] The present invention can adjust the height position and lateral position of the detection camera, so the detection camera can be moved along the direction of the crack, so that the crack can be comprehensively photographed and detected, and the photographed image can be transmitted to a display screen, which can facilitate staff to observe the cracks in real time, so the cracks can be accurately detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional schematic diagram of the first-perspective structure of a wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0034] Figure 2 A three-dimensional schematic diagram of the second viewing angle structure of a wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0035] Figure 3 A bottom-up three-dimensional schematic diagram of a support frame, a Z-shaped rod, an adjustment gear, and a gear column connection structure of a wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0036] Figure 4 A three-dimensional schematic diagram of the connection structure of the first screw, the second screw, the limit ring, the drive motor, the driving gear and the driven gear of the wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0037] Figure 5 A three-dimensional schematic diagram of a connection structure of a driving motor, a driving gear, a driven gear, a first screw and a second screw of a wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0038] Figure 6 A three-dimensional schematic diagram of the connection structure of a gear column, an adjustment gear, a Z-shaped rod, a connecting plate, a moving plate, and a detection camera of a wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0039] Figure 7 A three-dimensional schematic diagram of a connecting structure of a gear column, a rotating shaft, a swing rod, a plug rod and an arc-shaped plate of a wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0040] Figure 8 A three-dimensional schematic diagram of the connection structure of the drive shaft, adjustment screw, adjustment plate, rack, gear rack and display screen of the wall crack detection device based on computer vision provided by an embodiment of the present invention;

[0041] Fig. 9 A three-dimensional schematic diagram of the connection structure of a U-shaped frame, a support shaft, a gear frame, an adjusting screw and a limit frame of a wall crack detection device based on computer vision provided in an embodiment of the present invention.

[0042] Reference numerals:

[0043] 1. Mobile base; 2. Push frame; 3. Support frame; 4. Limiting ring; 5. Bending rod; 6. Rectangular frame; 7. Mobile plate; 8. Detection camera; 9. Connecting plate; 10. First screw; 11. Second screw; 12. Nut; 13. Synchronous wheel; 14. Synchronous belt; 15. Mounting plate; 16. Driving motor; 17. Driving gear; 18. Driven gear; 19. Support ring; 20. Fixed plate; 21. Ring; 22. Z-rod; 23. Transmission ring; 24. Slide plate; 25. Adjustment Gear; 26, mounting frame; 27, fixing frame; 28, rotating shaft; 29, gear column; 30, swing rod; 31, plug rod; 32, first hand wheel; 33, compression spring; 34, arc plate; 35, slot; 36, U-shaped frame; 37, supporting shaft; 38, gear frame; 39, adjusting plate; 40, rack; 41, threaded ring; 42, adjusting screw; 43, limit frame; 44, driving shaft; 45, driving bevel gear; 46, transmission bevel gear; 47, second hand wheel; 48, display screen. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0045] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0046] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0047] In the embodiments of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0049] Example 1: Reference Figure 1 , Figure 2 and Figure 3 A wall crack detection device based on computer vision in this embodiment includes a mobile base 1, and a pushing frame 2 is fixedly installed on one side of the top of the mobile base 1 to facilitate manual pushing of the entire device to move.

[0050] A support mechanism is provided on the other side of the top of the mobile base 1. The support mechanism is mainly composed of a support frame 3, which is fixedly mounted on the top of the mobile base 1 by bolts or other fastening methods. A slide rail or a slide groove is designed inside the support frame 3, which is slidably connected to a limit ring 4, so that the limit ring 4 can perform stable longitudinal sliding in the support frame 3. A support ring 19 is fixedly mounted on the top of the support frame 3, and two bent rods 5 are symmetrically fixedly mounted on the top of the limit ring 4. The top ends of the two bent rods 5 penetrate the support ring 19 and extend above it, and a relatively stable sliding connection can be maintained between the bent rods 5 and the support ring 19. The top ends of the two bent rods 5 are used to connect the detection mechanism.

[0051] The detection mechanism is mainly composed of a rectangular frame 6, the bottom of which is fixedly mounted on the top of the two bent rods 5 by bolts or other fastening means. A slide groove is designed inside the rectangular frame 6, which is slidably connected to a movable plate 7, so that the movable plate 7 can slide stably horizontally in the rectangular frame 6. A detection camera 8 is fixedly mounted on one side of the movable plate 7 by bolts or other fastening means, which is used to photograph and detect cracks generated on the wall. The detection camera 8 is electrically connected to the display screen 48 installed on the adjustment mechanism through a data cable or a wireless signal, and the captured crack image can be displayed on the display screen 48 in real time. A connecting plate 9 is fixedly mounted on the other side of the movable plate 7, and the connecting plate 9 is connected to the adjustment mechanism by bolts or other fastening means, and is used to receive the driving force of the adjustment mechanism, thereby driving the movable plate 7 and the detection camera 8 to perform lateral movement adjustment.

[0052] The power mechanism is installed on the support frame 3, and is used to drive the support mechanism to extend and retract, so as to adjust the height of the detection mechanism. The power mechanism is mainly composed of a first screw rod 10 and a second screw rod 11, which are rotatably connected to corresponding positions in the support frame 3. Two nuts 12 are symmetrically fixedly installed at the bottom of the limit ring 4, and the two nuts 12 are threadedly connected to the first screw rod 10 and the second screw rod 11 respectively. The top end of the first screw rod 10 and the top end of the second screw rod 11 respectively penetrate the corresponding nuts 12, the limit ring 4 and the support ring 19 and extend to the top of the support ring 19. A belt assembly is installed at the top end of the first screw rod 10 and the top end of the second screw rod 11 to achieve synchronous rotation of the two screw rods.

[0053] The belt assembly is mainly composed of two synchronous wheels 13 and a synchronous belt 14. The two synchronous wheels 13 are fixedly mounted on the top of the first screw 10 and the top of the second screw 11, respectively, and the synchronous belt 14 is driven and sleeved on the two synchronous wheels 13. In this way, when the first screw 10 rotates, the second screw 11 can be driven to rotate at the same time through the transmission effect of the synchronous wheel 13 and the synchronous belt 14.

[0054] A mounting plate 15 is fixedly mounted on the top of one side of the support frame 3, and a driving motor 16 is fixedly mounted on the bottom of the mounting plate 15. The output shaft of the driving motor 16 extends to the top of the mounting plate 15, and a driving gear 17 is fixedly mounted thereon. A driven gear 18 located above the support ring 19 is fixedly sleeved on the first screw rod 10, and the driving gear 17 is meshed with the driven gear 18. Therefore, when the driving motor 16 is started, the driving gear 17 can be driven to rotate, and then the driven gear 18 and the first screw rod 10 are driven to rotate through meshing transmission. When the first screw rod 10 and the second screw rod 11 rotate, since they are respectively threadedly connected to the corresponding nuts 12, they can drive the limit ring 4 to move longitudinally, thereby driving the two bent rods 5 and the detection mechanism to perform longitudinal movement adjustment.

[0055] The adjusting mechanism is installed on the top of the mobile base 1, and its top is connected to the connecting plate 9 of the detection mechanism and the supporting mechanism. It is used to drive the connecting plate 9 and the mobile plate 7 to perform lateral movement adjustment. A display screen 48 is fixedly installed on the adjusting mechanism, and the display screen 48 is electrically connected to the detection camera 8 through a data line or a wireless signal, and can display the crack image captured by the detection camera 8 in real time.

[0056] When in use, the operator can move the entire device to the vicinity of the wall to be detected by pushing the push frame 2. Then, the driving motor 16 is started to drive the driving gear 17 and the driven gear 18 to rotate, and then through the threaded transmission of the first screw 10 and the second screw 11, the limit ring 4 and the bent rod 5 are driven to move longitudinally and adjust, thereby adjusting the height of the detection mechanism. At the same time, the operator can control the adjustment mechanism to drive the connecting plate 9 and the moving plate 7 to move horizontally and adjust, thereby adjusting the horizontal position of the detection camera 8. In this way, the operator can adjust the height and horizontal position of the detection mechanism in real time according to the position and trajectory of the cracks on the wall, so that the detection camera 8 can fully capture the detection cracks. The captured crack image can be displayed on the display screen 48 in real time for the operator to analyze and process.

[0057] Embodiment 2: This embodiment is based on Embodiment 1. Regarding the wall crack detection device based on computer vision proposed in Embodiment 1, the adjustment mechanism is mainly composed of a mounting frame 26, a fixing frame 27, a rotating shaft 28, a gear column 29, a swing rod 30, an insertion rod 31, a first hand wheel 32, a compression spring 33, an arc plate 34, a slot 35, a U-shaped frame 36, a support shaft 37, a gear frame 38, a rack 40, an adjustment plate 39, a threaded ring 41, an adjustment screw 42, a transmission bevel gear 46, a drive bevel gear 45, a drive shaft 44, a second hand wheel 47 and other components.

[0058] The mounting frame 26 is fixedly mounted on the top of the mobile base 1, and the fixing frame 27 is fixedly mounted on the top of the mounting frame 26. A U-shaped frame 36 is mounted on the top of one side of the fixing frame 27, a support shaft 37 is fixedly mounted inside the U-shaped frame 36, a gear frame 38 is rotatably sleeved on the support shaft 37, and a display screen 48 is fixedly mounted on one side of the gear frame 38. A rack 40 is slidably connected through the U-shaped frame 36, and the rack 40 is meshed with the gear frame 38. An adjustment plate 39 is fixedly mounted on the bottom of the rack 40, and a threaded ring 41 is fixedly mounted on the top of the adjustment plate 39.

[0059] A rotating shaft 28 is rotatably connected to the inner wall of the top of the fixing frame 27, and a gear column 29 is fixedly sleeved on the rotating shaft 28. The bottom end of the rotating shaft 28 extends into the mounting frame 26, and a swing rod 30 is fixedly installed. An adjustment hole is opened on the inner wall of one side of the mounting frame 26, and one end of the swing rod 30 passes through the adjustment hole and extends to the outside of the mounting frame 26. The swing rod 30 passes through and is slidably connected with an insertion rod 31 located on the outside of the mounting frame 26, and a compression spring 33 located below the swing rod 30 is sleeved on the insertion rod 31, and the top and bottom ends of the compression spring 33 are fixedly connected to the bottom of the swing rod 30 and the insertion rod 31 respectively. A first hand wheel 32 is fixedly installed on the top of the insertion rod 31.

[0060] The top of the mobile base 1 is fixedly mounted with an arc plate 34, and a plurality of slots 35 are provided at equal intervals on the top of the arc plate 34, and the insertion rods 31 are movably engaged with the plurality of slots 35. By pulling the first hand wheel 32 upward, the insertion rod 31 can be driven to move upward, so that the insertion rod 31 is moved out of the corresponding slot 35, and the compression spring 33 is compressed at this time. Then, by pushing the first hand wheel 32 horizontally, the insertion rod 31 and the swing rod 30 can be driven to move, and then the gear column 29 is driven to rotate through the rotating shaft 28.

[0061] A fixing plate 20 is fixedly installed on one side of the support ring 19, and a collar 21 is rotatably connected to the bottom of the fixing plate 20, and a Z-shaped rod 22 is slidably connected to the collar 21. An adjusting gear 25 is fixedly installed on the bottom end of the Z-shaped rod 22, and the adjusting gear 25 is meshed with a gear column 29. A slide plate 24 is rotatably connected to the top end of the Z-shaped rod 22, and a transmission ring 23 is fixedly installed on the bottom of the connecting plate 9, and the top of the slide plate 24 extends into the transmission ring 23 and is slidably connected to the inner wall of the transmission ring 23.

[0062] When the gear column 29 rotates, the Z-shaped rod 22 can be driven to rotate through the meshing transmission with the adjustment gear 25. The Z-shaped rod 22 in the rotating state can drive the slide plate 24 to move in an arc, thereby driving the connecting plate 9 and the detection camera 8 to move horizontally under the sliding cooperation with the transmission ring 23.

[0063] In order to adjust the angle of the display screen 48, the transmission component can be operated. The transmission component is mainly composed of a limit frame 43, a drive shaft 44, a drive bevel gear 45, a drive bevel gear 46, an adjustment screw 42 and other components. The limit frame 43 is fixedly installed on one side of the fixed frame 27, and the drive shaft 44 is rotatably connected to the limit frame 43, and one end is rotatably connected to one side of the fixed frame 27. The drive shaft 44 is fixedly sleeved with a drive bevel gear 45 located in the limit frame 43, and the adjustment screw 42 is rotatably connected to the limit frame 43, and the bottom end of the adjustment screw 42 is fixedly installed with a drive bevel gear 46 meshing with the drive bevel gear 45.

[0064] By rotating the second hand wheel 47, the driving shaft 44 can be driven to rotate, and then the adjusting screw 42 can be driven to rotate through the meshing transmission of the driving bevel gear 45 and the transmission bevel gear 46. When the adjusting screw 42 rotates, the adjusting plate 39 can be driven to move longitudinally along the axis direction of the adjusting screw 42 through the threaded transmission with the threaded ring 41, thereby driving the rack 40 to move longitudinally. Under the meshing transmission effect with the gear rack 38, the rack 40 can drive the gear rack 38 to rotate, thereby adjusting the angle of the display screen 48.

[0065] The present invention provides a method for using a wall crack detection device based on computer vision, comprising the following steps:

[0066] S1. First, push the device to the wall that needs to be tested;

[0067] S2, then the driving motor 16 can be started to drive the driving gear 17 to rotate. At this time, under the meshing transmission action with the driven gear 18, the first screw 10 can be driven to rotate. When the first screw 10 rotates, the second screw 11 can be driven to rotate simultaneously and in the same direction as the first screw 10 under the transmission action of the two synchronous wheels 13 and the synchronous belt 14, so that under the transmission action of the corresponding nut 12, the limit ring 4 can be driven to move longitudinally stably, thereby driving the two bent rods 5 to move longitudinally, so that the height of the detection camera 8 can be adjusted, so that when detecting cracks, the height of the detection camera 8 can be adjusted according to the height of the cracks;

[0068] S3, then pull the first hand wheel 32 upward to drive the insertion rod 31 to move upward, so that the insertion rod 31 is moved out of the corresponding slot 35, and when the insertion rod 31 moves upward, the compression spring 33 can be compressed, and then the first hand wheel 32 is pushed horizontally to drive the insertion rod 31 to move, and at this time, the swing rod 30 can be driven to move, that is, the gear column 29 can be driven to rotate through the rotating shaft 28, so that the Z-shaped rod 22 can be driven to rotate and adjust under the meshing transmission action with the adjusting gear 25, and the Z-shaped rod 22 in the rotating state can drive the slide plate 24 to move in an arc, so that it can be connected with the transmission ring 2 3, the connecting plate 9 can be driven to move horizontally, thereby driving the detection camera 8 to move horizontally. When the cracks on the wall are irregular, the bending rod 5 can be coordinated with the longitudinal movement of the bending rod 5, and the height and horizontal position of the detection camera 8 can be conveniently adjusted, so that the position of the detection camera 8 can be adjusted in real time according to the trajectory of the cracks, so that the detection camera 8 can comprehensively shoot and detect the cracks. The crack images after shooting can be transmitted to the display screen 48, and the processor in the display screen 48 is used to measure the displayed crack images and display the measured data;

[0069] S4. When the lateral position of the detection camera 8 needs to be limited, the first hand wheel 32 can be released, and the compression spring 33 under stress can push the insertion rod 31 to move downward, so that the insertion rod 31 is inserted into the corresponding slot 35, and the position of the gear column 29 can be limited;

[0070] S5. When it is necessary to adjust the angle of the display screen 48, the driving shaft 44 can be driven to rotate by rotating the second hand wheel 47. At this time, under the meshing transmission action of the driving bevel gear 45 and the transmission bevel gear 46, the adjusting screw 42 can be driven to rotate. When the adjusting screw 42 rotates, under the threaded transmission action with the threaded ring 41, the adjusting plate 39 can be driven to move longitudinally along the axial direction of the adjusting screw 42, thereby driving the rack 40 to move longitudinally. At this time, under the meshing transmission action with the gear rack 38, the gear rack 38 can be driven to rotate, thereby adjusting the angle of the display screen 48, so that when the staff views the display screen 48, they can adjust the display screen 48 to a position that is suitable for the staff's viewing angle, thereby providing certain convenience for the staff.

[0071] However, as is well known to those skilled in the art, the working principles and wiring methods of the detection camera 8, the drive motor 16 and the display screen 46 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0072] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A wall crack detection device based on computer vision, comprising a mobile base (1), a push frame (2) being fixedly mounted on one side of the top of the mobile base (1), characterized in that: The detection device also includes: A supporting mechanism, the supporting mechanism being mounted on one side of the top of the mobile base (1); A detection mechanism, which is installed on the supporting mechanism and is used to photograph and detect cracks generated on the wall; A power mechanism, which is installed on the supporting mechanism and is used to drive the supporting mechanism to extend and retract; The adjusting mechanism is installed on the top of the mobile base (1), the top of the adjusting mechanism is connected to the detection mechanism, the adjusting mechanism is connected to the supporting mechanism, the adjusting mechanism is used to adjust the lateral position of the detection mechanism, a display screen (48) is installed on the adjusting mechanism, and the display screen (48) is connected to the detection mechanism.

2. The wall crack detection device based on computer vision according to claim 1 is characterized in that: The support mechanism comprises a support frame (3) fixedly mounted on one side of the top of the mobile base (1); a limit ring (4) is slidably connected inside the support frame (3); a support ring (19) is fixedly mounted on the top of the support frame (3); two bent rods (5) are symmetrically fixedly mounted on the top of the limit ring (4); the top ends of the two bent rods (5) both penetrate the support ring (19) and extend to the top of the support ring (19); the top ends of the two bent rods (5) are connected to the detection mechanism; a power mechanism is mounted on the support frame (3); one side of the power mechanism extends into the support frame (3) and is connected to the limit ring (4).

3. The wall crack detection device based on computer vision according to claim 2 is characterized in that: The detection mechanism comprises a rectangular frame (6) fixedly mounted on the top ends of two bent rods (5), a movable plate (7) slidably connected to the rectangular frame (6), a detection camera (8) fixedly mounted on one side of the movable plate (7), the detection camera (8) being used to photograph and detect cracks generated on the wall, the detection camera (8) being electrically connected to a display screen (48), and a connecting plate (9) fixedly mounted on the other side of the movable plate (7), the connecting plate (9) being connected to the adjustment mechanism.

4. The wall crack detection device based on computer vision according to claim 2 is characterized in that: The power mechanism comprises a first screw rod (10) and a second screw rod (11) which are respectively rotatably connected to the support frame (3); two nuts (12) are symmetrically fixedly installed at the bottom of the limiting ring (4); the top of the first screw rod (10) and the top of the second screw rod (11) respectively penetrate the corresponding nuts (12), the limiting ring (4) and the support ring (19) and both extend to the top of the support ring (19); the top of the first screw rod (10) and the top of the second screw rod (11) are installed with the same belt assembly; a mounting plate (15) is fixedly installed at the top of one side of the support frame (3); a driving motor (16) is fixedly installed at the bottom of the mounting plate (15); the output shaft of the driving motor (16) extends to the top of the mounting plate (15) and is fixedly installed with a driving gear (17); a driven gear (18) located above the support ring (19) is fixedly sleeved on the first screw rod (10); the driving gear (17) is meshed with the driven gear (18).

5. The computer vision-based wall crack detection device according to claim 4, characterized in that: The belt assembly comprises two synchronous wheels (13) respectively fixedly mounted on the top of the first screw rod (10) and the top of the second screw rod (11), and the transmission sleeves on the two synchronous wheels (13) are provided with the same synchronous belt (14).

6. The wall crack detection device based on computer vision according to claim 3 is characterized in that: The adjustment mechanism comprises a mounting frame (26) fixedly mounted on the top of the mobile base (1), a fixing frame (27) fixedly mounted on the top of the mounting frame (26), a mounting assembly mounted on the top of one side of the fixing frame (27), a display screen (48) mounted on the mounting assembly, a rotating shaft (28) rotatably connected to the inner wall of the top of the fixing frame (27), a gear column (29) fixedly sleeved on the rotating shaft (28), the bottom end of the rotating shaft (28) extending into the mounting frame (26), a fixing plate (20) fixedly mounted on one side of the support ring (19) ), the bottom of the fixed plate (20) is rotatably connected with a sleeve ring (21), a Z-shaped rod (22) is slidably connected through the sleeve ring (21), the top of the Z-shaped rod (22) is rotatably connected with a slide plate (24), and a transmission ring (23) is fixedly installed at the bottom of the connecting plate (9), the top of the slide plate (24) extends into the transmission ring (23), the slide plate (24) is slidably connected to the inner wall of the transmission ring (23), and an adjusting gear (25) is fixedly installed at the bottom end of the Z-shaped rod (22), and the adjusting gear (25) is meshed with a gear column (29).

7. The wall crack detection device based on computer vision according to claim 6, characterized in that: A swing rod (30) is fixedly installed at the bottom end of the rotating shaft (28), an adjustment hole is opened on the inner wall of one side of the mounting frame (26), one end of the swing rod (30) passes through the adjustment hole and extends to the outside of the mounting frame (26), and a plug rod (31) located on the outside of the mounting frame (26) is slidably connected to the swing rod (30), and an arc plate (34) is fixedly installed on the top of the movable base (1), and a plurality of slots (35) are opened at equal intervals on the top of the arc plate (34), and the plug rod (31) is movably engaged with the plurality of slots (35) respectively, and a compression spring (33) located below the swing rod (30) is sleeved on the plug rod (31), and the top and bottom ends of the compression spring (33) are fixedly connected to the bottom of the swing rod (30) and the plug rod (31) respectively, and a first hand wheel (32) is fixedly installed on the top of the plug rod (31).

8. The computer vision-based wall crack detection device according to claim 6, characterized in that: The mounting assembly comprises a U-shaped frame (36) fixedly mounted on the top of one side of a fixed frame (27), a support shaft (37) fixedly mounted in the U-shaped frame (36), a gear frame (38) rotatably sleeved on the support shaft (37), a display screen (48) fixedly mounted on one side of the gear frame (38), a rack (40) running through the U-shaped frame (36) in sliding connection, the rack (40) meshing with the gear frame (38), a transmission component mounted on the bottom of the rack (40), and the transmission component mounted on one side of the fixed frame (27) and connected.

9. The computer vision-based wall crack detection device according to claim 8, characterized in that: The transmission component comprises a limit frame (43) fixedly mounted on one side of the fixed frame (27); the limit frame (43) penetrates and is rotatably connected with a driving shaft (44); one end of the driving shaft (44) is rotatably connected to one side of the fixed frame (27); a driving bevel gear (45) located in the limit frame (43) is fixedly sleeved on the driving shaft (44); an adjusting screw (42) penetrates and is rotatably connected to the limit frame (43); a driving bevel gear (46) is fixedly mounted on the bottom end of the adjusting screw (42); the driving bevel gear (45) meshes with the driving bevel gear (46); an adjusting plate (39) is fixedly mounted on the bottom end of the rack (40); a threaded ring (41) is fixedly mounted on the top of the adjusting plate (39); the adjusting screw (42) penetrates the adjusting plate (39) and the threaded ring (41) respectively and is threadably connected to the threaded ring (41); and a second hand wheel (47) is fixedly mounted on the other end of the driving shaft (44).

10. The method for using the computer vision-based wall crack detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, push the device to the wall that needs to be tested; S2, then the driving motor (16) can be started to drive the driving gear (17) to rotate. At this time, under the meshing transmission action with the driven gear (18), the first screw rod (10) can be driven to rotate. When the first screw rod (10) rotates, under the transmission action of the two synchronous wheels (13) and the synchronous belt (14), the second screw rod (11) can be driven to rotate simultaneously and in the same direction as the first screw rod (10), so that under the transmission action of the corresponding nut (12), the limit ring (4) can be driven to move longitudinally stably, thereby driving the two bent rods (5) to move longitudinally, so that the height of the detection camera (8) can be adjusted, so that when cracks are detected, the height of the detection camera (8) can be adjusted according to the height of the cracks; S3, then by pulling the first hand wheel (32) upwards, the insertion rod (31) is driven to move upwards, so that the insertion rod (31) is moved out of the corresponding slot (35), and when the insertion rod (31) moves upwards, the compression spring (33) can be compressed, and then the first hand wheel (32) is pushed laterally to drive the insertion rod (31) to move, and at this time, the swing rod (30) can be driven to move, that is, the gear column (29) can be driven to rotate through the rotating shaft (28), so that the Z-shaped rod (22) can be driven to rotate and adjust under the meshing transmission action with the adjustment gear (25), and the Z-shaped rod (22) in the rotating state can drive the slide plate (24) to move in an arc shape, so that Under the sliding cooperation with the transmission ring (23), the connecting plate (9) can be driven to move horizontally, thereby driving the detection camera (8) to move horizontally. When the cracks on the wall are irregular, the longitudinal movement of the bending rod (5) can be coordinated to facilitate the adjustment of the height and horizontal position of the detection camera (8), so that the position of the detection camera (8) can be adjusted in real time according to the trajectory of the cracks, so that the detection camera (8) can comprehensively shoot and detect the cracks. The crack images after shooting can be transmitted to the display screen (48), and the processor in the display screen (48) can be used to measure the displayed crack images and display the measured data; S4. When it is necessary to limit the lateral position of the detection camera (8), the first hand wheel (32) can be released, and the compression spring (33) under stress can push the insertion rod (31) to move downward, so that the insertion rod (31) is inserted into the corresponding slot (35), and the position of the gear column (29) can be limited; S5. When the angle of the display screen (48) needs to be adjusted, the second hand wheel (47) can be rotated to drive the drive shaft (44) to rotate. At this time, the driving bevel gear (45) and the transmission bevel gear (46) can drive the adjusting screw (42) to rotate. When the adjusting screw (42) rotates, the adjusting plate (39) can be driven to move longitudinally along the axial direction of the adjusting screw (42) under the threaded transmission action with the threaded ring (41), thereby driving the rack (40) to move longitudinally. At this time, under the meshing transmission action with the gear rack (38), the gear rack (38) can be driven to rotate, thereby adjusting the angle of the display screen (48). When the staff views the display screen (48), the display screen (48) can be adjusted to a position that is suitable for the staff's viewing angle, thereby providing certain convenience for the staff.

Images