Binocular camera laser calibration platform

Abstract

The invention relates to the technical field of machine vision, in particular to a binocular camera laser calibration platform. The invention discloses a binocular camera laser calibration platform which comprises a main body unit composed of a base and a supporting piece, and an adjusting unit composed of a camera adjusting piece and an acquisition plate adjusting piece. Under the cooperation of the main body unit and the adjusting unit, the relative positions of the binocular camera and the calibration plate can be kept unchanged when different calibration plates are replaced under the condition that the binocular reconstruction system and the calibration plate are installed and adjusted for the first time, and the readjustment time can be effectively saved.

Description

Technical Field

[0001] The invention relates to the technical field of machine vision, in particular to a binocular camera laser calibration platform. Background Art

[0002] The binocular reconstruction system using the traditional calibration method needs to collect calibration images first. When collecting images, the binocular reconstruction system and the calibration board are two separate entities. Professionals are required to constantly adjust and maintain the specific relative position and angle between the two in order to collect images at the best position. The operation process is cumbersome, time-consuming and labor-intensive. When installing and replacing the acquisition board, the relative distance between the camera and the acquisition board will change due to the installation action, requiring refocusing and calibration. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the existing vehicle body manufacturing, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that professionals constantly adjust and maintain the specific relative position and angle between the binocular reconstruction system and the calibration plate in order to collect images at the best position. The operation process is cumbersome and time-consuming. When installing and replacing the acquisition board, the relative distance between the camera and the acquisition board will change due to the installation action, and refocusing and calibration are required.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a binocular camera laser calibration platform, comprising:

[0007] The main unit comprises a base and a support member, wherein the support member is arranged on the base;

[0008] The adjusting unit comprises a camera adjusting member and a collection board adjusting member, wherein the camera adjusting member is arranged on the base, and the collection board adjusting member is arranged on the supporting member.

[0009] As a preferred solution of the binocular camera laser calibration platform described in the present invention, wherein: the support member includes a camera support seat and a collection board telescopic rod, the camera support seat is arranged in a movable groove opened on the base, and the collection board telescopic rod is fixedly connected to the base and movably connected to the collection board mounting member.

[0010] As a preferred solution of the binocular camera laser calibration platform described in the present invention, the camera adjustment component includes a lead screw and a clamping plate arranged in a mounting groove on the camera support seat, and the clamping plate is connected to the lead screw through threads.

[0011] As a preferred solution of the binocular camera laser calibration platform described in the present invention, wherein: the acquisition board adjustment member includes a clamping member, a connecting member, a conversion member and a hinged member, the clamping member is arranged on the acquisition board mounting member, the connecting member is arranged on the acquisition board mounting member, the conversion member is movably connected to the connecting member, the hinged member is fixedly connected to the acquisition board telescopic rod and movably connected to the conversion member.

[0012] As a preferred solution of the binocular camera laser calibration platform described in the present invention, the clamping member includes a clamping plate, an elastic member and a connecting rod, the clamping plate is fixedly connected to the connecting rod, and the elastic member is arranged in the acquisition plate mounting member and sleeved on the connecting rod.

[0013] As a preferred solution of the binocular camera laser calibration platform described in the present invention, wherein: the connecting part includes a steering rod and a fixed cylinder, the steering rod is movably connected to the connecting rod and movably connected to the fixed cylinder, and the fixed cylinder is fixedly connected to the accommodating box fixedly connected to the acquisition plate mounting part.

[0014] As a preferred solution of the binocular camera laser calibration platform described in the present invention, the center of the movable axis of the steering rod and the fixed cylinder is closer to the other end of the steering rod than the arc end of the steering rod and the fixed cylinder.

[0015] As a preferred solution of the binocular camera laser calibration platform described in the present invention, wherein: the conversion member is provided with an abutment end and a connection end, the diameter of the abutment end is larger than the diameter of the connection end, and the abutment end and the connection end are connected by a transition slope.

[0016] As a preferred solution of the binocular camera laser calibration platform described in the present invention, wherein: the articulated part includes an articulated claw and an articulated ball, the articulated claw is arranged on the connecting end, the claw arm of the intersection claw is in contact with the fixed cylinder, and the articulated ball is arranged in the articulated claw.

[0017] As a preferred solution of the binocular camera laser calibration platform of the present invention, wherein: a braking groove is arranged on the articulated ball, and the braking groove cooperates with the long claw of the articulated claw.

[0018] The beneficial effect of the present invention is that with the cooperation of the main unit and the adjustment unit, the relative positions of the binocular camera and the calibration plate can be kept unchanged when replacing different calibration plates after the binocular reconstruction system and the calibration plate are initially installed and adjusted, which can effectively save the time for readjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative labor. Among them:

[0020] Figure 1 Schematic diagram of the overall setup of the binocular camera laser calibration platform.

[0021] Figure 2 This is an exploded diagram of the camera structure of the binocular camera laser calibration platform.

[0022] Figure 3 This is a schematic diagram of the partial structure of the acquisition board.

[0023] Figure 4 This is a schematic diagram of the internal structure of the acquisition board adjustment component.

[0024] Figure 5 This is a cross-sectional view of the structure of the acquisition plate adjustment member in the unclamped state.

[0025] Figure 6 It is a cross-sectional view of the structure of the acquisition plate adjustment part in the clamping state. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1

[0030] Reference Figure 1 to Figure 6 , which is the first embodiment of the present invention, provides a binocular camera laser calibration platform, including a main unit 100 composed of a base 101 and a support member 102, and an adjustment unit 200 composed of a camera adjustment member 201 and an acquisition board adjustment member 202.

[0031] Specifically, the support member 102 is disposed on the base 101 , the camera adjustment member 201 is disposed on the base 101 , and the acquisition board adjustment member 202 is disposed on the support member 102 .

[0032] Furthermore, the support member 102 includes a camera support seat 102a and a collection board telescopic rod 102b. The camera support seat 102a is arranged in a movable groove 101a opened on the base 101. The collection board telescopic rod 102b is fixedly connected to the base 101 and movably connected to the collection board mounting member 102c. The camera adjustment member 201 includes a screw 201a and a clamping plate 201b arranged in the mounting groove 102a-1 on the camera support seat 102a. The clamping plate 201b is connected to the screw 201a through threads.

[0033] During the initial installation, the camera support 102a is installed in the movable groove 101a and the binocular camera is placed in the installation groove 102a-1, and the clamping plate 201b is made close to the binocular camera by rotating the screw 201a. This makes it convenient to install different models of binocular cameras to meet different work requirements.

[0034] Preferably, the camera support seat 102a is arranged in the movable groove 101a, so that the relative distance between the camera and the calibration plate can be adjusted.

[0035] Example 2

[0036] Reference Figure 1 to Figure 6 , which is the second embodiment of the present invention, is different from the first embodiment in that this embodiment provides a binocular camera laser calibration platform including: further optimizing the acquisition adjustment component 202.

[0037] Specifically, the collection plate adjustment member 202 includes a clamping member 202a, a connecting member 202b, a conversion member 202c and a hinged member 202d. The clamping member 202a is arranged on the collection plate mounting member 102c, the connecting member 202b is arranged on the collection plate mounting member 102c, the conversion member 202c is movably connected to the connecting member 202b, and the hinged member 202d is fixedly connected to the collection plate telescopic rod 102b and movably connected to the conversion member 202c.

[0038] Furthermore, the clamping member 202a includes a clamping plate 202a-1, an elastic member 202a-2 and a connecting rod 202a-3, the clamping plate 202a-1 is fixedly connected to the connecting rod 202a-3, and the elastic member 202a-2 is disposed in the collection plate mounting member 102c and sleeved on the connecting rod 202a-3.

[0039] When in use, the calibration plate is placed between the clamping plates 202a-1 by pulling the clamping plate 202a-1 to drive the connecting rod 202a-3 to move and the elastic member 202a-2 to contract. The clamping plate 202a-1 is released, and the elastic action of the elastic member 202a-2 enables the clamping plate 202a-1 to fix the calibration plate on the collection plate mounting member 102c. This can adapt to calibration plates of different sizes to meet different work requirements.

[0040] Example 3

[0041] Reference Figure 1 to Figure 6 , which is the third embodiment of the present invention. This embodiment is different from the previous two embodiments in that it provides a binocular camera laser calibration platform including further optimization of the acquisition adjustment component 202.

[0042] Specifically, the connecting member 202b includes a steering rod 202b-1 and a fixed cylinder 202b-2. The steering rod 202b-1 is movably connected to the connecting rod 202a-3 and movably connected to the fixed cylinder 202b-2. The fixed cylinder 202b-2 is fixedly connected to the containing box 102d fixedly connected to the collection plate mounting member 102c.

[0043] Furthermore, the center of the movable shaft 202b-1a where the steering rod 202b-1 and the fixed cylinder 202b-2 are movably connected is closer to the other end of the steering rod 202b-1 than the arc end 202b-1b where the steering rod 202b-1 and the fixed cylinder 202b-2 are movably connected.

[0044] Specifically, the conversion member 202c is provided with a contact end 202c-1 and a connection end 202c-2, the diameter of the contact end 202c-1 is larger than the diameter of the connection end 202c-2, and the contact end 202c-1 and the connection end 202c-2 are connected via a transition slope 202c-3.

[0045] Specifically, the hinged member 202d includes a hinged claw 202d-1 and a hinged ball 202d-2. The hinged claw 202d-1 is arranged on the connecting end 202c-2. The claw arm 202d-1a of the hinged claw 202d-1 contacts the fixed cylinder 202b-2. The hinged ball 202d-2 is arranged in the hinged claw 202d-1.

[0046] Specifically, a braking groove 202d-2a is provided on the hinge ball 202d-2, and the braking groove 202d-2a cooperates with the long claw 202d-1b of the hinge claw 202d-1.

[0047] When in use, when the clamping plate 202a-1 is pulled to drive the connecting rod 202a-3, the steering rod 202b-1 movably connected to the connecting rod 202a-3 will be driven to move. Unlike the movement of the connecting rod 202a-3, the steering rod 202b-1 will then perform a circular motion around the connection point between the connecting rod 202a-3 and the steering rod 202b-1. Because the steering rod 202b-1 is movably connected to the fixed cylinder 202b-2 at the movable shaft 202b-1a, the steering rod 202b-1 will also perform a circular motion at the movable shaft 202b-1a. The center of the movable shaft 202b-1a where the steering rod 202b-1 is movably connected to the fixed cylinder 202b-2 is closer to the other end of the steering rod 202b-1 than the arc end 202b-1b where the steering rod 202b-1 is movably connected to the fixed cylinder 202b-2. The rod wall of the steering rod 202b-1 will contact the transition slope 202c-3 of the conversion member 202c, and when rotating, the transition slope 202c-3 will give a force to the connecting rod 202a-3, thereby driving the conversion member 202c to move, and the connecting end 202c-2 drives the articulated claw 202d-1 to move, so that the claw arm 202d-1a of the articulated claw 202d-1 contacts and moves with the fixed cylinder 202b-2, thereby causing the claw arm 202d-1a to deviate and tighten centripetally, and causing the long claw 202d-1b to enter the braking groove 202d-2a on the articulated ball 202d-2, so that the installation device cannot be hinged and rotated through the articulated ball 202d-2. After the braking is completed, that is, after the calibration plate is installed, the calibration plate will not rotate due to replacement, thereby avoiding the problem of the calibration plate needing to be recalibrated due to replacement.

[0048] Furthermore, through the squeezing effect of the abutting end 202c-1 and the steering rod 202b-1 rotating around the movable axis 202b-1a, the circular motion radius of the steering rod 202b-1 is fixed when the transition slope 202c-3 is reached, so that no matter how large the size of the calibration plate is within the range of use, the long claw 202d-1b of the articulated claw 202d-1a is always located in the brake groove 202d-2a of the articulated ball 202d-2.

[0049] In summary, the present invention is applicable to different cameras and calibration plates through a flexible installation method, and after the initial installation and positioning, different calibration plates can be replaced without secondary calibration, which saves time and manpower.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A binocular camera laser calibration platform, characterized by: include, A main unit (100) comprises a base (101) and a support member (102), wherein the support member (102) is arranged on the base (101); The adjustment unit (200) comprises a camera adjustment member (201) and a collection board adjustment member (202); the camera adjustment member (201) is arranged on the base (101), and the collection board adjustment member (202) is arranged on the support member (102).

2. The binocular camera laser calibration platform as claimed in claim 1, characterized in that: The support member (102) comprises a camera support seat (102a) and a collection board telescopic rod (102b); the camera support seat (102a) is arranged in a movable groove (101a) provided on the base (101); the collection board telescopic rod (102b) is fixedly connected to the base (101) and movably connected to the collection board mounting member (102c).

3. The binocular camera laser calibration platform as claimed in claim 2, characterized in that: The camera adjustment member (201) comprises a lead screw (201a) and a clamping plate (201b) which are arranged in a mounting groove (102a-1) on the camera support seat (102a); the clamping plate (201b) is connected to the lead screw (201a) via threads.

4. The binocular camera laser calibration platform as claimed in claim 3, characterized in that: The collecting plate adjusting member (202) comprises a clamping member (202a), a connecting member (202b), a conversion member (202c) and a hinge member (202d); the clamping member (202a) is arranged on the collecting plate mounting member (102c); the connecting member (202b) is arranged on the collecting plate mounting member (102c); the conversion member (202c) is movably connected to the connecting member (202b); the hinge member (202d) is fixedly connected to the collecting plate telescopic rod (102b) and movably connected to the conversion member (202c).

5. The binocular camera laser calibration platform as claimed in claim 4, characterized in that: The clamping member (202a) comprises a clamping plate (202a-1), an elastic member (202a-2) and a connecting rod (202a-3); the clamping plate (202a-1) is fixedly connected to the connecting rod (202a-3); the elastic member (202a-2) is arranged in the collection plate mounting member (102c) and sleeved on the connecting rod (202a-3).

6. The binocular camera laser calibration platform as claimed in claim 5, characterized in that: The connecting member (202b) comprises a steering rod (202b-1) and a fixed tube (202b-2); the steering rod (202b-1) is movably connected to the connecting rod (202a-3) and movably connected to the fixed tube (202b-2); the fixed tube (202b-2) is fixedly connected to a containing box (102d) fixedly connected to the collection plate mounting member (102c).

7. The binocular camera laser calibration platform as claimed in claim 6, characterized in that: The center of the movable shaft (202b-1a) movably connected to the steering rod (202b-1) and the fixed cylinder (202b-2) is closer to the other end of the steering rod (202b-1) than the arc end (202b-1b) movably connected to the steering rod (202b-1) and the fixed cylinder (202b-2).

8. The binocular camera laser calibration platform as claimed in claim 7, characterized in that: The conversion member (202c) is provided with a contact end (202c-1) and a connection end (202c-2); the diameter of the contact end (202c-1) is larger than the diameter of the connection end (202c-2); and the contact end (202c-1) and the connection end (202c-2) are connected via a transition slope (202c-3).

9. The binocular camera laser calibration platform as claimed in claim 8, characterized in that: The hinged member (202d) comprises a hinged claw (202d-1) and a hinged ball (202d-2); the hinged claw (202d-1) is arranged on the connecting end (202c-2); a claw arm (202d-1a) of the intersection claw (202d-1) contacts the fixed cylinder (202b-2); and the hinged ball (202d-2) is arranged in the hinged claw (202d-1).

10. The binocular camera laser calibration platform as claimed in claim 9, characterized in that: The hinge ball (202d-2) is provided with a braking groove (202d-2a), and the braking groove (202d-2a) cooperates with the long claw (202d-1b) of the hinge claw (202d-1).

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