Camera fixing device for realizing multi-view shooting

Abstract

The utility model discloses a camera fixing device for realizing multi-view shooting, which comprises a main camera fixing device and an auxiliary camera fixing device, the main camera fixing device comprises a portal frame and two cameras, the portal frame comprises two triangular fixing supports, two long rods and a cross, each triangular fixing support comprises a triangular base and a vertical rod, and the two long rods are arranged on the triangular base. The cross is composed of a cross rod and two vertical rods, one end of a long rod is fixed to the vertical rods of the triangular fixing support, the other end of the long rod penetrates through a gap between the two vertical rods and is fixed to the vertical rods, and one end of a short rod is fixed to one end of the cross rod. One camera is connected to the cross rod, and the other camera is connected to the short rod; the auxiliary camera fixing device comprises two supports of the same structure, each support comprises a T-shaped supporting base, a vertical rod and a camera, one end of each vertical rod is fixed to the corresponding T-shaped supporting base, the camera is arranged at the other end of each vertical rod, and the vertical rod of one support in the auxiliary camera fixing device is longer than the vertical rod of the other support.

Description

Technical Field

[0001] The utility model belongs to the technical field of camera brackets, and in particular relates to a camera fixing device for realizing multi-viewing angle shooting. Background Art

[0002] With the advancement of science and technology, the livestock industry has also experienced rapid growth, with an increasing supply of dairy products, meat products, and leather goods. Monitoring cattle growth is crucial for beef and dairy cattle production. Cattle measurements and weights reflect not only their body shape, structure, and development, but also their physiological functions, disease resistance, and adaptability to external living conditions. Traditional methods of measuring livestock body size rely on manual measurement using tools such as calipers and tape measures. However, due to the large size of cattle, measuring their body size and weight is difficult, time-consuming, and labor-intensive. Furthermore, these measurements are inaccurate and can cause cattle to become frightened.

[0003] At present, relevant technicians are actively developing non-contact measurement of body size and weight data of beef cattle, such as the patent document published on September 3, 2021, with publication number CN113344960A, and the invention name is "A method for measuring body size and weight of live cattle based on machine vision."

[0004] The method of using non-contact to measure the body size and weight data of beef cattle usually requires taking photos of the cattle. A commonly used camera fixing device is to fix a camera on a gantry. For example, see the patent document published on January 17, 2020, with publication number CN110693499A, and the invention name is "A system and method for detecting animal body size and weight."

[0005] However, existing camera fixtures for taking photos of cattle can only capture partial parts of the cattle and cannot be repositioned, making it impossible to take photos of the entire body of the cattle. Furthermore, the shooting angle is relatively fixed, which limits the accuracy of non-contact measurement of the body size and weight of beef cattle. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a camera fixing device for realizing multi-angle shooting, which comprises: a main camera fixing device and an auxiliary camera fixing device, the main camera fixing device comprises: a gantry with a lifting function and two cameras, the gantry comprises: two triangular fixing brackets, two long poles, and a cross for fixing the cameras, wherein the triangular fixing bracket comprises a triangular base and a vertical pole, the base and the vertical poles are fixed together by welding or by bevel codes and fixing pieces, the cross is composed of a cross-shaped horizontal pole and two vertical poles, there is a gap between the two vertical poles, one end of the long pole is fixed to the vertical pole of the triangular fixing bracket by an L-shaped connecting plate and a fixing piece, the other end of the long pole passes through the gap between the two vertical poles and is fixed to the vertical pole by a right-angle bracket and a fixing piece, and one end of the short pole is fixed to one end of the cross pole by a right-angle bracket and a fixing piece; one camera is connected to the cross pole by an external double-axis guide rail and a four-wheel slider, and the other camera is connected to the short pole by an external double-axis guide rail and a four-wheel slider;

[0007] The auxiliary camera fixing device includes two brackets, one bracket includes a first T-shaped support base, a first vertical rod and a first camera, one end of the first vertical rod is fixed on the first T-shaped support base, and the first camera is placed on the other end; the other bracket includes a second T-shaped support base, a second vertical rod and a second camera, one end of the second vertical rod is fixed on the second T-shaped support base, and the second camera is placed on the other end, wherein the second vertical rod is longer than the first vertical rod.

[0008] The horizontal bar 1 and the vertical bar 2 are connected to form a cross through two T-shaped connecting plates and fixing parts. One side of a T-shaped connecting plate is fixed to the horizontal bar, and the other side is fixed to a vertical bar.

[0009] Wherein, the camera in the main camera fixing device and the camera in the auxiliary camera fixing device are both placed on a rotating base.

[0010] The first camera is connected to the first vertical rod through an external dual-axis guide rail and a four-wheel slider, and the second camera is connected to the second vertical rod through an external dual-axis guide rail and a four-wheel slider.

[0011] Among them, the vertical rod, horizontal rod, vertical rod, long rod and short rod of the triangular fixed bracket are made of aluminum profiles with grooves on the surface.

[0012] The fixing parts are matching T-shaped bolts and nuts, and the T-shaped connecting plate, L-shaped connecting plate and right-angle bracket are preset with drilled holes.

[0013] Among them, the head of the T-bolt is stuck in the groove of the aluminum profile, the drilled holes of the T-shaped connecting plate, L-shaped connecting plate and right-angle bracket pass through the threaded ends of their respective T-bolts, and the nut is screwed into the threaded part of the T-bolt from the threaded end to a tightening state, so that the T-shaped connecting plate, L-shaped connecting plate, right-angle bracket and the corresponding aluminum profile surface are fixed together.

[0014] Among them, the two cameras in the auxiliary camera fixing device are placed on the left side of the gantry. The center position of the first camera is 44.4 cm above the ground, the vertical distance to the vertical rod in the triangular fixing bracket is 90 cm, and the vertical distance to the plane perpendicular to the ground formed by the two long rods is 97 cm; the center position of the second camera is 86.8 cm above the ground, the vertical distance to the vertical rod in the triangular fixing bracket is 123 cm, and the vertical distance to the plane perpendicular to the ground formed by the two long rods is 51 cm.

[0015] Beneficial effects:

[0016] The camera fixing device for realizing multi-angle shooting provided by the utility model can be applied to the method for non-contact measurement of body size and weight data of beef cattle. By providing a main camera fixing device and an auxiliary camera fixing device, the back, tail, left (or right) front leg and side of the cattle can be photographed, thereby realizing photography of all parts of the cattle. By providing a height-adjustable gantry and multiple cameras that can be adjusted leftwards and upwards and downwards, the defect of fixed shooting angles in the prior art is solved, and it is convenient to use the method for non-contact measurement of body size and weight data of beef cattle to measure body size and predict weight of cattle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a camera fixing device for realizing multi-angle shooting provided by the present invention;

[0018] Figure 2 It is a schematic diagram of the fixing method of the L-shaped connecting plate;

[0019] Figure 3 It is a schematic diagram of two viewing angles of the gantry in the camera fixture;

[0020] Figure 4 is a side view of the auxiliary camera fixture;

[0021] Figure 5 This is a detailed picture of the camera's rail slider;

[0022] Figure 6 It is a schematic diagram of the fixing method of the T-shaped connecting plate;

[0023] Figure 7 This is a schematic diagram of the fixing method of the bevel code;

[0024] Figure 8 This is a schematic diagram of the right-angle bracket fixing method;

[0025] Figure 9 It is the cross section of the rack aluminum profile used for gantry and small racks. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The camera fixing device for achieving multi-angle shooting provided by the utility model includes: a main camera fixing device and an auxiliary camera fixing device. The main camera fixing device includes: a gantry with a lifting function, the gantry includes: two triangular fixing brackets, two long rods 3, and a cross for fixing the camera, wherein the triangular fixing bracket includes a triangular base and a vertical rod, and the base and the vertical rod can be fixed together by welding or by using bevel brackets and fixing parts. Figure 3 and 7 The cross is composed of a cross bar 1 and two vertical bars 2, which are connected to form a cross by two T-shaped connecting plates and fixings. Figure 6 , the fixings can be nuts and bolts. Fix one side of the T-shaped connecting plate to the horizontal bar 1, and fix the other side to a vertical bar 2. In this way, a horizontal bar 1 and two vertical bars 2 can be formed into a cross through two T-shaped connecting plates, and there is a gap between the two vertical bars 2, which is used for subsequent passing through. One end of the long rod 3 is fixed to the vertical bar of the triangular fixing bracket through the L-shaped connecting plate 4 and the fixings. One end of the long rod 3 passes through the gap between the two vertical bars 2 and is fixed to the vertical bar 2 through the right-angle bracket and the fixings. One end of the short rod 5 is fixed to one end of the horizontal bar 1 through the right-angle bracket and the fixings. The fixings can be nuts and bolts, which can be seen in Figure 8 .

[0028] Camera 10 is connected to crossbar 1 via an external dual-axis guide rail and four-wheel sliders, allowing it to flexibly move along the grooves of crossbar 1 to adjust the shooting position of camera 10. Camera 11 is connected to short bar 5 via an external dual-axis guide rail and four-wheel sliders, allowing it to flexibly move along the grooves of short bar 5 to adjust the shooting position of camera 11. Both cameras 10 and 11 are placed on a rotating base, and the camera base is rotated to adjust the shooting angle of the lens.

[0029] The auxiliary camera fixing device includes two brackets. One bracket includes a T-shaped support base 8, a vertical rod 6, and a camera 12. Similarly, the other bracket includes a T-shaped support base 9, a vertical rod 7, and a camera 13. The vertical rod 7 is longer than the vertical rod 6. One end of the vertical rod 6 is fixed to the T-shaped support base 8, and the camera 12 is placed on the other end. Similarly, one end of the vertical rod 7 is fixed to the T-shaped support base 9, and the camera 13 is placed on the other end. The camera 12 is connected to the vertical rod 6 via an external dual-axis guide rail and a four-wheel slider. It can be flexibly moved along the groove of the vertical rod 6 to adjust the shooting position of the camera 12. The camera 13 is connected to the vertical rod 7 via an external dual-axis guide rail and a four-wheel slider. It can be flexibly moved along the groove of the vertical rod 7 to adjust the shooting position of the camera 13. Both cameras 12 and 13 are placed on a rotating base, and the shooting angle of the lens is adjusted by rotating the camera base.

[0030] The vertical rod, horizontal rod 1, vertical rod 2, long rod 3 and short rod 5 of the triangular fixed bracket can be made of aluminum profiles with grooves on the surface, which are collectively referred to as rack aluminum profiles in this article, that is, the gantry and small shelf use rack aluminum profiles as support parts.

[0031] Figure 9 The cross section of the rack aluminum profile used for the gantry and small shelves is shown. It can be seen that the rack aluminum profile has grooves on all four surfaces. Select a surface of the rack aluminum profile that fits with the connecting components such as the T-shaped connecting plate and L-shaped connecting plate, and insert the head of the T-bolt into the groove on the surface. Pass the preset drilled holes of the connecting components such as the T-shaped connecting plate, L-shaped connecting plate, and right-angle bracket through the threaded ends of the respective T-bolts to fit tightly with the surface of the rack aluminum profile; screw the nut from the threaded end into the threaded part of the T-bolt until it is tightened, so that the connecting components such as the T-shaped connecting plate, L-shaped connecting plate, and right-angle bracket and the surface of the corresponding rack aluminum profile are fixed together. A wrench or other tool can be used to ensure that the nut is tightened. If needed, washers can be used to increase the stability and sealing of the connection.

[0032] By loosening the nut, adjusting the position of the T-bolt in the groove of the frame aluminum profile, and then tightening the nut, the movement of the connecting components such as the T-shaped connecting plate, L-shaped connecting plate, and right-angle bracket can be achieved, and then the position of the cross bar 1, rod 3, and short rod 5 can be adjusted, thereby adjusting the height of the cross, the position of camera 10, and the height of camera 11.

[0033] To achieve the best possible picture of the desired part of the cow, assume Figure 1The direction of the triangular base of the middle triangular fixed bracket is the positive direction, the plane where the long rod 3 of the gantry is located and is parallel to the straight side of the triangular base (the side in contact with the ground) is A, and the plane where the horizontal rod 2 of the gantry is perpendicular to the ground is B. Cameras 12 and 13 are both placed on the left side of the gantry, and of course they can also be placed on the right side of the gantry. The center position of camera 12 is 44.4 cm above the ground, the distance to plane A is 90 cm, and the distance to plane B is 97 cm. In other words, the vertical distance from the center position of camera 12 to the vertical rod in the triangular fixed bracket is 90 cm, and the vertical distance to the plane perpendicular to the ground formed by the two long rods 3 is 97 cm; the center position of camera 13 is 86.8 cm above the ground, the distance to plane A is 123 cm, and the distance to plane B is 51 cm. In other words, the vertical distance from the center position of camera 13 to the vertical rod in the triangular fixed bracket is 123 cm, and the vertical distance to the plane perpendicular to the ground formed by the two long rods 3 is 51 cm.

[0034] When the cattle follow Figure 1 When the straight edge of the triangular base passes through the camera fixture's shooting area, camera 10 can capture the cattle's back, camera 11 can capture the cattle's rear quarters, camera 12 can capture the cattle's front legs, and camera 13 can capture the cattle's side. The four cameras' shooting area is: 230cm * 150cm * 150cm (length * width * height).

[0035] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as falling within the scope of protection determined by the claims submitted for the utility model.

Claims

1. A camera fixing device for realizing multi-view shooting, characterized in that: include: A main camera fixing device and an auxiliary camera fixing device, wherein the main camera fixing device comprises: a gantry with a lifting function and two cameras, the gantry comprises: two triangular fixing brackets, two long poles (3), and a cross for fixing the cameras, wherein the triangular fixing bracket comprises a triangular base and a vertical pole, the base and the vertical pole are fixed together by welding or by bevel brackets and fixing pieces, the cross is composed of a cross-shaped horizontal pole (1) and two vertical poles (2), and there is a gap between the two vertical poles (2). One end of the long rod (3) is fixed to the vertical rod of the triangular fixed bracket through an L-shaped connecting plate (4) and a fixing piece, the other end of the long rod (3) passes through the gap between the two vertical rods (2) and is fixed to the vertical rod (2) through a right-angle bracket and a fixing piece, and one end of the short rod (5) is fixed to one end of the cross rod (1) through a right-angle bracket and a fixing piece; a camera (10) is connected to the cross rod (1) through an external double-axis guide rail and a four-wheel slider, and another camera (11) is connected to the short rod (5) through an external double-axis guide rail and a four-wheel slider; The auxiliary camera fixing device comprises two brackets, one bracket comprising a first T-shaped support base (8), a first vertical rod (6) and a first camera (12), one end of the first vertical rod (6) is fixed on the first T-shaped support base (8), and the first camera (12) is arranged on the other end; the other bracket comprises a second T-shaped support base (9), a second vertical rod (7) and a second camera (13), one end of the second vertical rod (7) is fixed on the second T-shaped support base (9), and the second camera (13) is arranged on the other end, wherein the second vertical rod (7) is longer than the first vertical rod (6).

2. The camera fixing device for realizing multi-view shooting according to claim 1, characterized in that: The horizontal bar (1) and the vertical bar (2) are connected to form a cross through two T-shaped connecting plates and fixing pieces. One side of a T-shaped connecting plate is fixed to the horizontal bar (1), and the other side is fixed to a vertical bar (2).

3. The camera fixing device for realizing multi-view shooting according to claim 1, characterized in that: The camera in the main camera fixing device and the camera in the auxiliary camera fixing device are both placed on a rotating base.

4. The camera fixing device for realizing multi-view shooting according to claim 1, characterized in that: The first camera (12) is connected to the first vertical rod (6) through an external double-axis guide rail and a four-wheel slider, and the second camera (13) is connected to the second vertical rod (7) through an external double-axis guide rail and a four-wheel slider.

5. The camera fixing device for realizing multi-view shooting according to claim 1, characterized in that: The vertical rod, horizontal rod (1), vertical rod (2), long rod (3) and short rod (5) of the triangular fixed bracket are made of aluminum profiles with grooves on the surface.

6. The camera fixing device for realizing multi-view shooting according to claim 5, characterized in that: The fixing parts are matched T-shaped bolts and nuts, and the T-shaped connecting plate, L-shaped connecting plate and right-angle bracket are preset with drilled holes.

7. The camera fixing device for realizing multi-view shooting according to claim 6, characterized in that: The head of the T-bolt is stuck into the groove of the aluminum profile, and the drilled holes of the T-shaped connecting plate, L-shaped connecting plate, and right-angle bracket pass through the threaded ends of their respective T-bolts. The nut is screwed into the threaded part of the T-bolt from the threaded end until it is tightened, so that the T-shaped connecting plate, L-shaped connecting plate, right-angle bracket and the corresponding aluminum profile surface are fixed together.

8. The camera fixing device for realizing multi-view shooting according to claim 1, characterized in that: The two cameras in the auxiliary camera fixing device are both placed on the left side of the gantry, the center position of the first camera (12) is 44.4 cm above the ground, the vertical distance to the vertical rod in the triangular fixing bracket is 90 cm, and the vertical distance to the plane perpendicular to the ground formed by the two long rods is 97 cm; the center position of the second camera (13) is 86.8 cm above the ground, the vertical distance to the vertical rod in the triangular fixing bracket is 123 cm, and the vertical distance to the plane perpendicular to the ground formed by the two long rods is 51 cm.

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