Portable imaging device for detecting distribution uniformity of road marking glass beads

Abstract

The utility model discloses a portable imaging device for road marking glass bead distribution uniformity detection. The portable imaging device comprises a rack; the integrated circuit board is mounted on the rack; the imaging camera is arranged on the integrated circuit board, and the rack is provided with a through hole for the imaging camera to penetrate through; the plurality of mounting racks are arranged on one side, far away from the integrated circuit board, of the rack; the mounting feet are rotatably mounted on the mounting frame; one end of the supporting strip is rotatably mounted on the mounting leg, and the other end of the supporting strip is movably arranged on the mounting frame; and the locking piece is used for locking the supporting strip. According to the portable imaging device for detecting the distribution uniformity of the road marking glass beads, the orthographic projection image of the road marking is stably obtained, the image quality is high, whether the distribution uniformity of the road marking glass beads meets the design standard or not can be judged through the orthographic projection image of the road marking, and the portability of the portable imaging device for detecting the distribution uniformity of the road marking glass beads is improved through the design of the foldable mounting feet.

Description

Portable imaging device for detecting the uniformity of glass bead distribution in road markings Technical Field

[0001] This application relates to the field of road marking detection technology, and in particular to a portable imaging device for detecting the uniformity of glass bead distribution in road markings. Background Technology

[0002] In the transportation industry, road markings are extremely important. To ensure safe driving at night, a certain amount of glass beads needs to be added to road markings to improve their reflectivity. The quality, uniformity of glass bead distribution, and quantity of glass beads all have a significant impact on the reflectivity of road markings.

[0003] In existing technologies, the orthographic projection image of road markings needs to be acquired using a handheld imaging camera. However, the low stability of handheld imaging cameras results in low image quality, which is not conducive to subsequent detection of the uniformity of glass bead distribution.

[0004] Therefore, the need to develop a portable imaging device for detecting the uniformity of glass bead distribution in road markings and to obtain stable data has become a critical technical problem that urgently needs to be solved. Summary of the Invention

[0005] This application provides a portable imaging device for detecting the uniformity of glass bead distribution in road markings. It aims to solve the problem that in the prior art, the orthographic projection image of road markings needs to be acquired by a handheld imaging camera. However, the handheld imaging camera has low stability, resulting in low image quality, which is not conducive to subsequent detection of the uniformity of glass bead distribution.

[0006] To achieve the above objectives, this application proposes a portable imaging device for detecting the uniformity of glass bead distribution in road markings, comprising: a frame; an integrated circuit board mounted on the frame; an imaging camera mounted on the integrated circuit board, the frame having a through hole for the imaging camera to pass through; multiple mounting brackets disposed on the side of the frame away from the integrated circuit board; mounting feet rotatably mounted on the mounting brackets; a support strip, one end of which is rotatably mounted on the mounting feet, and the other end of which is movably disposed on the mounting bracket; and a locking element for locking the support strip.

[0007] In some embodiments, the locking element includes: a pin hole, wherein the mounting bracket and the support bar are both provided with pin holes; and a locking pin, which is adapted to the pin hole.

[0008] In some embodiments, the device further includes: a ring-shaped fill light, which is coaxially arranged with the imaging camera; and a connector, through which the ring-shaped fill light is mounted on the frame.

[0009] In some embodiments, the device further includes a control panel disposed on the rack and electrically connected to an integrated circuit board.

[0010] In some embodiments, the control panel is further included with a display screen.

[0011] In some embodiments, the device further includes: perforated holes, wherein a plurality of perforated holes are provided on the frame.

[0012] This application proposes a portable imaging device for detecting the uniformity of glass bead distribution in road markings, comprising: a frame; an integrated circuit board mounted on the frame; an imaging camera mounted on the integrated circuit board, with a through hole in the frame for the imaging camera to pass through; multiple mounting brackets located on the side of the frame away from the integrated circuit board; mounting feet rotatably mounted on the mounting brackets; a support strip, one end of which is rotatably mounted on the mounting foot, and the other end of which is movably mounted on the mounting bracket; and a locking element for locking the support strip. During road marking detection, the mounting feet are rotated out of the mounting brackets, and the locking element locks the angle of the mounting feet relative to the mounting brackets, ensuring the mounting feet are perpendicular to the brackets. The imaging camera then acquires a projected image of the road markings, which is transmitted to the CPU and other integrated electrical components on the integrated circuit board. The projected image is processed to determine whether the uniformity of the glass bead distribution in the road markings meets design standards. After detection, the locking element can be removed, and the mounting feet can be rotated and folded back onto the mounting brackets for easy transport of the portable imaging device. Through the above steps, a stable orthographic projection image of the road marking can be obtained with high image quality. The orthographic projection image of the road marking can be used to determine whether the uniformity of the distribution of glass beads in the road marking meets the design standards. The design of the foldable mounting feet also helps to improve the portability of the portable imaging device for detecting the uniformity of the distribution of glass beads in road marking. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0014] Figure 1 is a three-dimensional structural schematic diagram of a portable imaging device for detecting the uniformity of road marking glass bead distribution in one embodiment of this application;

[0015] Figure 2 is a three-dimensional structural schematic diagram of a portable imaging device for detecting the uniformity of road marking glass bead distribution without a control panel in one embodiment of this application.

[0016] Figure 3 is a partial enlarged view of part A in Figure 2;

[0017] Figure 4 is a side view of another portable imaging device for detecting the uniformity of road marking glass bead distribution in an embodiment of this application;

[0018] Figure 5 is a bottom view of another portable imaging device for detecting the uniformity of road marking glass bead distribution in one embodiment of this application.

[0019] In the diagram: 1. Frame; 2. Hole; 3. Control panel; 4. Display screen; 5. Mounting bracket; 6. Support bar; 7. Mounting foot; 8. Integrated circuit board; 9. Locking pin; 10. First rotating shaft; 11. Second rotating shaft; 12. Ring-shaped fill light; 13. Imaging camera; 14. Connector. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0024] Referring to Figures 1, 2, and 3, this application proposes a portable imaging device for detecting the uniformity of glass bead distribution in road markings, comprising: a frame 1; an integrated circuit board 8 mounted on the frame 1; an imaging camera 13 disposed on the integrated circuit board 8, the frame 1 having a through hole for the imaging camera 13 to pass through; multiple mounting brackets 5 disposed on the side of the frame 1 away from the integrated circuit board 8; mounting feet 7 rotatably mounted on the mounting brackets 5; a support bar 6, one end of which is rotatably mounted on the mounting foot 7, and the other end of which is movably disposed on the mounting bracket 5; and a locking element for locking the support bar 6.

[0025] The frame 1 serves as the structural foundation of the portable imaging device for detecting the uniformity of road marking glass bead distribution. All other structures on the portable imaging device are directly or indirectly connected to the frame 1. The integrated circuit board 8 is connected to the frame 1 via fasteners, preferably screws. After the integrated circuit board 8 is mounted on the frame 1, the imaging camera 13 on the integrated circuit board 8 passes through a through-hole in the frame 1 and partially extends out of the frame 1. The imaging camera 13 has an autofocus function and can acquire the orthographic projection image of the road markings. The integrated circuit board 8 also houses a CPU and other integrated electrical structures for processing the orthographic projection image of the road markings acquired by the imaging camera 13, obtaining the uniformity of the road marking glass bead distribution, and determining whether the uniformity of the road marking glass bead distribution meets the design standards. Mounting foot 7 is used to support frame 1. When it is necessary to obtain the orthographic projection image of road markings, the support bar 6 is locked by locking piece, thereby locking the angle of mounting foot 7 relative to mounting frame 5, so that mounting foot 7 is perpendicular to mounting frame 5. After the inspection is completed, the locking piece is removed, and mounting foot 7 is rotated and folded onto mounting frame 5, which facilitates the transportation of portable imaging device for detecting the uniformity of distribution of glass beads in road markings.

[0026] Specifically, during road marking inspection, the mounting foot 7 is rotated off the mounting bracket 5, and the angle of the mounting foot 7 relative to the mounting bracket 5 is locked by a locking device, making the mounting foot 7 perpendicular to the mounting bracket 5. At this time, the imaging camera 13 acquires the orthographic projection image of the road marking and transmits it to the CPU and other integrated electrical structures on the integrated circuit board 8. The orthographic projection image of the road marking is processed to determine whether the uniformity of the distribution of glass beads in the road marking meets the design standards. After the inspection is completed, the locking device can be removed, and the mounting foot 7 can be rotated and folded back onto the mounting bracket 5 for easy transport of the portable imaging device for detecting the uniformity of the distribution of glass beads in road markings. Through the above steps, the orthographic projection image of the road marking can be stably acquired with high image quality. The orthographic projection image of the road marking can be used to determine whether the uniformity of the distribution of glass beads in the road marking meets the design standards. The foldable design of the mounting foot 7 also improves the portability of the portable imaging device for detecting the uniformity of the distribution of glass beads in road markings.

[0027] In detail, the imaging camera 13 can capture an image area of ​​1m² in a single shot. 2 After the imaging camera 13 acquires the orthographic projection image of the road markings, it needs to preprocess the orthographic projection image of the road markings to obtain a standard image of the road markings, and then acquire the image of the glass beads. The position of each glass bead on the standard image is obtained by using squared difference matching, correlation matching, or normalized correlation matching methods. Of course, other matching methods can also be used, which are not specifically limited here. After obtaining the position of each glass bead on the standard image, the uniformity of the glass bead distribution can be obtained by using the nearest neighbor distance method, thereby determining whether the uniformity of the glass bead distribution meets the design requirements.

[0028] Preferably, the mounting foot 7 is rotatably mounted to the mounting bracket 5 via the first pivot 10, and the support bar 6 is rotatably mounted to the mounting foot 7 via the second pivot 11.

[0029] Referring to Figures 1, 2, and 3, in some embodiments, the locking element includes a pin hole. Both the mounting bracket 5 and the support bar 6 are provided with pin holes. The mounting bracket 5 has a through pin hole, and the support bar 6 also has a through pin hole. When the mounting foot 7 rotates to be perpendicular to the mounting bracket 5, the pin hole on the support bar 6 aligns with the pin hole on the mounting bracket 5, locking pin 9, which is adapted to the pin hole. Inserting the locking pin 9 into the pin holes on the mounting bracket 5 and the support bar 6, and allowing it to extend beyond the mounting bracket 5, locks the angle between the mounting foot 7 and the mounting bracket 5.

[0030] In this embodiment, a pulley is installed at the end of the mounting foot 7 away from the frame 1 to facilitate continuous detection by the portable imaging device for detecting the uniformity of road marking glass beads. When only random sampling is required, the pulley is not needed, thus reducing the production cost of the portable imaging device for detecting the uniformity of road marking glass beads.

[0031] Referring to Figures 1, 4, and 5, in some embodiments, the system further includes: a ring-shaped supplementary light 12, which is coaxially arranged with the imaging camera 13; the ring-shaped supplementary light 12 is used for supplementary lighting to prevent the light from being too dim and affecting the uniformity detection structure; and a connector 14, through which the ring-shaped supplementary light 12 is mounted on the frame 1. The connector 14 is used to mount the ring-shaped supplementary light 12 onto the frame 1 and to ensure that the ring-shaped supplementary light 12 is coaxially arranged with the imaging camera 13.

[0032] Referring to Figures 1 and 4, in some embodiments, the system further includes: a control panel 3, which is disposed on the frame 1 and electrically connected to some electrical components on the integrated circuit board 8. The control panel 3 controls electrical components such as the imaging camera 13 via buttons on the control panel 3, thereby controlling the detection process; and a display screen 4, which is disposed on the control panel 3 and also electrically connected to some electrical components on the integrated circuit board 8, for displaying the detection process and results.

[0033] Referring to Figures 1, 2, and 5, in some embodiments, the device further includes: perforated holes 2, with a plurality of perforated holes 2 provided on the frame 1. The perforated holes 2 help reduce the operating cost of the frame 1, and can also serve as force-bearing points, making it easier to lift the frame 1 and improving the portability of the portable imaging device for detecting the uniformity of distribution of glass beads in road markings.

[0034] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A portable imaging device for detecting the uniformity of glass bead distribution in road markings, characterized in that, include: A frame (1); an integrated circuit board (8) mounted on the frame (1); an imaging camera (13) mounted on the integrated circuit board (8), the frame (1) having a through hole for the imaging camera (13) to pass through; a plurality of mounting brackets (5) disposed on the side of the frame (1) away from the integrated circuit board (8); mounting feet (7) rotatably mounted on the mounting brackets (5); a support bar (6) rotatably mounted on the mounting feet (7), the other end of the support bar (6) being movably disposed on the mounting brackets (5); and a locking element for locking the support bar (6).

2. The portable imaging device for detecting the uniformity of road marking glass bead distribution according to claim 1, characterized in that, The locking component includes: a pin hole, which is provided on both the mounting bracket (5) and the support bar (6); and a locking pin (9), which is adapted to the pin hole.

3. The portable imaging device for detecting the uniformity of road marking glass bead distribution according to claim 1, characterized in that, It also includes: a ring-shaped fill light (12), which is coaxially arranged with the imaging camera (13); and a connector (14), through which the ring-shaped fill light (12) is mounted on the frame (1).

4. The portable imaging device for detecting the uniformity of road marking glass bead distribution according to claim 1, characterized in that, Also includes: The control panel (3) is disposed on the frame (1) and is electrically connected to the integrated circuit board (8).

5. The portable imaging device for detecting the uniformity of road marking glass bead distribution according to claim 4, characterized in that, Also includes: Display screen (4) is located on the control panel (3).

6. The portable imaging device for detecting the uniformity of road marking glass bead distribution according to claim 1, characterized in that, Also includes: Hole holes (2): The frame (1) is provided with several holes (2).

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