Computer vision experiment table

Abstract

The invention relates to the technical field of computer vision, and discloses a computer vision experiment table which comprises a movable seat, a high-speed camera and a display screen are arranged at the top of the movable seat, at least two sets of U-shaped experiment table plates are arranged on one side of the movable seat, and the bottoms of the U-shaped experiment table plates are provided with a plurality of U-shaped clamping grooves. An inclination adjusting assembly is arranged close to the middle part of the U-shaped experiment table plate and is used for adjusting the inclination rotation angle of the U-shaped experiment table plate. According to the computer vision experiment table, by arranging the two sets of U-shaped experiment table plates, physical experiments under various conditions of relative movement, same-direction movement or different inclination angles of the trolleys can be achieved, flexible transformation of the various physical experiments is achieved, and by arranging the bearing assemblies at the two ends of the U-shaped experiment table plates, the physical experiments can be conveniently carried out; the computer vision experiment table ensures stable bearing when the trolley on the U-shaped experiment table plate moves to any end, and is more practical.

Description

Technical Field

[0001] The present invention relates to the technical field of computer vision, and in particular to a computer vision test bench. Background Art

[0002] The measurement of linear motion in physical speed-changing experiments is an important part of the laws of motion, which involves the changes in speed, position, time, and acceleration of an object in linear motion. The relationship between speed, time, and distance is what needs to be verified in the experiment.

[0003] At present, we can use the advantages of computer vision technology to assist in the testing and verification of physical experiments. However, in order to obtain experimental results in various situations, we need to test not only the effect of the car's linear motion, but also the experimental effect of the car's tilting motion, as well as the experimental effect of two or more cars moving at the same time, so as to better verify the physical principles.

[0004] The Chinese utility model patent (application number: CN202122915749.7) discloses "a computer vision test bench, whose structure includes a test bench main body, an adjustment device and a receiving device. The present invention is provided with an adjustment device, that is, under the drive of a screw rod, the movement of a movable frame inside the adjustment component can be realized, and then the movable frame can drive the driving frame to realize the pushing activity of the top rod, so that the top rod pushes up the slide plate to realize the tilt adjustment activity, thereby achieving the advantages of tilt adjustment experiment and improving the usability of the computer vision test bench, and a receiving device is provided on the left side of the test bench main body, with the cooperation of the receiving frame and the buffer plate". Although the above-mentioned computer vision test bench can achieve the effect of the trolley tilt experiment, it is difficult to realize the physical exploration of multiple groups of trolley tilt experiments through a set of tilt adjustment devices, and the practicality is poor. It is not convenient for the trolley to select the end direction of the receiving buffer.

[0005] Therefore, we make improvements to this and propose a computer vision testbed. Summary of the invention

[0006] In view of the fact that the above-mentioned existing computer vision experimental device is difficult to realize physical exploration of multiple groups of trolley tilt experiments, has poor practicality, and is not convenient for the trolley to select the end direction for receiving the buffer, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a computer vision experiment platform, which aims to: by setting up at least two groups of U-shaped experiment platform plates, each group of U-shaped experiment platform plates is provided with receiving components at both ends to achieve flexible operation of physical experiments in various situations and improve the practicality of the visual experiment platform.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a computer vision test bench, comprising a moving seat, a high-speed camera and a display screen are arranged on the top of the moving seat, at least two groups of U-shaped test bench boards are arranged on one side of the moving seat, a tilt adjustment component is arranged at the bottom of the U-shaped test bench board and near the middle of the U-shaped test bench board, the tilt adjustment component is used to adjust the tilt rotation angle of the U-shaped test bench board, and receiving components are respectively arranged at both ends of the U-shaped test bench board;

[0009] The receiving assembly includes a receiving cylinder seat, a buffer cavity with a cylindrical structure is arranged inside the receiving cylinder seat, an inlet is opened at the end of the receiving cylinder seat close to the U-shaped experimental table plate, a buffer plate is movably connected to the receiving cylinder seat through a pin shaft, the top of the buffer plate extends to contact the inner wall of the receiving cylinder seat, a square stopper is inserted into one side of the receiving cylinder seat, a silicone pad is arranged on the inner wall of the square stopper, the square stopper is located below the U-shaped experimental table plate, and the square stopper is connected to the receiving cylinder seat using quick-release screws.

[0010] As a preferred solution of the computer vision test bench described in the present invention, wherein: the buffer plate has an L-shaped structure, and when in the material receiving state, one side of the bottom of the buffer plate is close to the U-shaped test bench plate; the bottom end of the buffer plate is connected to a baffle, and when the buffer plate is rotated to a 90° state, one side of the baffle is close to the U-shaped test bench plate, and a storage cavity is formed between the baffle, the buffer plate, the receiving tube seat and the square baffle seat.

[0011] As a preferred solution of the computer vision test bench described in the present invention, a sliding seat is arranged below the moving seat, a slider is installed at the bottom end of the moving seat, the slider is in a T-shaped structure, the slider is limited to slide in the sliding seat, the sliding seat is provided with scale lines parallel to the horizontal state of the U-shaped test bench plate, and an arrow mark is arranged on one side of the moving seat, and the arrow mark is facing the scale line.

[0012] As a preferred solution of the computer vision test bench described in the present invention, a lifting column is vertically inserted inside the movable seat, a plurality of screw holes are vertically arrayed on the side wall of the lifting column, a locking screw is installed on the outer wall of the movable seat, the locking screw is connected to the corresponding screw hole, and the high-speed camera is installed on the top of the lifting column.

[0013] As a preferred solution of the computer vision test bench described in the present invention, the tilt adjustment assembly includes two legs, a U-shaped sleeve is arranged between the top ends of the two legs, the U-shaped sleeve is installed on the lower end surface of the U-shaped test bench plate, and an angle adjustment screw is threadedly connected to one side of the top of one of the legs, and the angle adjustment screw is screwed in or out to drive the U-shaped test bench plate to rotate.

[0014] As a preferred solution of the computer vision test bench described in the present invention, wherein: a central shaft sleeve is coaxially arranged in the U-shaped sleeve, the two ends of the central shaft sleeve are respectively connected to end sleeves, a clamping plate is connected between the bottom ends of the two end sleeves, a clamping slot is opened at the bottom of the U-shaped sleeve, the clamping plate is clamped in the clamping slot, the two end sleeves are located at the two ends of the U-shaped sleeve, and the ends of the two groups of end sleeves are respectively movably connected to the corresponding tops of the legs.

[0015] As a preferred solution of the computer vision test bench described in the present invention, an adjusting shaft is inserted into the end sleeve close to the angle adjustment screw, a thread groove is opened in the central sleeve, a tooth block is provided on the outer wall of the adjusting shaft, the tooth block is limited to move in the thread groove, and the angle adjustment screw is screwed in to drive the adjusting shaft to be axially inserted, so that the buffer plate rotates.

[0016] As a preferred solution of the computer vision test bench described in the present invention, one end of the adjusting shaft extends to one side of the leg, the end of the adjusting shaft is connected to a square end plate, a U-shaped limit frame is arranged on the outer sleeve of the square end plate, the U-shaped limit frame is installed on the top of the leg, the U-shaped limit frame limits the linear movement of the square end plate, the angle adjustment screw is movably penetrated and matched with the bottom end of the square end plate, the operating rod of the angle adjustment screw is located on one side of the square end plate, and a circular ring is sleeved on the angle adjustment screw, and the circular ring is located on the other side of the square end plate.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention, by setting two groups of U-shaped experimental table plates, can realize physical experiments in various situations such as relative motion, same-direction motion or different inclination angles of the trolley, and realize flexible conversion of various physical experiments. By setting receiving components at both ends of the U-shaped experimental table plates, it is ensured that the trolley on the U-shaped experimental table plates is stably received when it moves to either end, thereby realizing a more practical computer vision experimental table.

[0019] 2. The present invention, by making the movable seat movable, can realize the distance adjustment and height adjustment of the high-speed camera, realize the speed collection of any position of the trolley on the U-shaped experimental table, and improve the flexibility of physical experiments.

[0020] 3. The present invention, through the design of the tilt adjustment component, can realize the clockwise rotation of the U-shaped experimental table by screwing in the angle adjustment screw, and realize the counterclockwise rotation of the U-shaped experimental table by screwing out the angle adjustment screw. The adjustment method is simple, and the angle adjustment operation is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0022] in:

[0023] Figure 1 It is a schematic diagram of the overall structure of the computer vision test bench of the present invention.

[0024] Figure 2 The figure is a schematic diagram of the structure of the slide seat and the moving seat of the computer vision experimental platform of the present invention.

[0025] Figure 3 It is a schematic diagram of the structure of two sets of U-shaped experimental platform plates of the computer vision experimental platform of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the tilt adjustment component of the computer vision experimental platform of the present invention.

[0027] Figure 5 It is a schematic diagram of the explosion state of the tilt adjustment component of the computer vision experimental platform of the present invention.

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the central shaft sleeve of the computer vision experimental platform of the present invention.

[0029] Figure 7 It is a schematic cross-sectional structural diagram of a receiving component of a computer vision experimental platform of the present invention;

[0030] Figure 8 It is a schematic cross-sectional structural diagram of the receiving component of the computer vision experiment platform of the present invention in the trolley storage state.

[0031] Description of reference numerals:

[0032] 1. U-shaped test bench;

[0033] 2. Receiver assembly; 21. Inlet; 22. Receiver seat; 23. Buffer plate; 24. Baffle plate; 25. Square baffle seat; 26. Storage chamber;

[0034] 3. Tilt adjustment assembly; 31. Leg; 32. Center shaft sleeve; 321. End sleeve; 322. Threaded groove; 323. Clamping plate; 33. U-shaped sleeve; 331. Clamping groove; 34. Adjusting shaft; 341. Gear block; 342. Square end plate; 35. U-shaped limit frame; 36. Angle adjustment screw;

[0035] 4. Sliding seat;

[0036] 5. Moving seat; 51. Sliding block; 52. Lifting column; 53. Locking screw; 54. High-speed camera; 55. Display screen. DETAILED DESCRIPTION

[0037] 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.

[0038] Example 1

[0039] Reference Figure 1 , Figure 7 and Figure 8 , which is the first embodiment of the present invention, provides a computer vision experiment platform, which includes a moving seat 5, a high-speed camera 54 and a display screen 55 are arranged on the top of the moving seat 5, at least two groups of U-shaped experiment platform plates 1 are arranged on one side of the moving seat 5, and a tilt adjustment component 3 is arranged at the bottom of the U-shaped experiment platform plate 1 and near the middle of the U-shaped experiment platform plate 1. The tilt adjustment component 3 is used to adjust the tilt rotation angle of the U-shaped experiment platform plate 1, and the two ends of the U-shaped experiment platform plate 1 are respectively provided with a receiving component 2; the receiving component 2 includes a receiving cylinder seat 22, and a buffer cavity with a cylindrical structure is arranged inside the receiving cylinder seat 22, and an inlet 21 is opened at the end of the receiving cylinder seat 22 near the U-shaped experiment platform plate 1, and the receiving cylinder seat A buffer plate 23 is movably connected to the inside of 22 through a pin shaft, and the top of the buffer plate 23 extends to contact the inner wall of the receiving tube seat 22. A square stopper 25 is inserted and arranged on one side of the receiving tube seat 22, and a silicone pad is arranged on the inner wall of the square stopper 25. The square stopper 25 is located below the U-shaped experimental table plate 1, and the square stopper 25 is connected to the receiving tube seat 22 with quick-release screws. The buffer plate 23 has an L-shaped structure. When the material is connected, one side of the bottom of the buffer plate 23 is close to the U-shaped experimental table plate 1; a baffle plate 24 is connected to the bottom end of the buffer plate 23. When the buffer plate 23 is rotated to a 90° state, one side of the baffle plate 24 is close to the U-shaped experimental table plate 1, and a storage cavity 26 is formed between the baffle plate 24, the buffer plate 23, the receiving tube seat 22 and the square stopper 25.

[0040] During use, by setting two sets of U-shaped experimental platform boards 1, the trolleys on the two sets of U-shaped experimental platform boards 1 can move relative to each other or move in the same direction. The two sets of U-shaped experimental platform boards 1 can also adjust different degrees of inclination respectively, so that various physical experiments of the trolley can be flexibly carried out. By setting receiving components 2 at both ends of the U-shaped experimental platform boards 1, when the U-shaped experimental platform boards 1 are subjected to the tilting experiment, such as Figure 7 The initial state of the buffer plate 23 is shown in FIG. 1 . The trolley rushes into the inlet 21 on the U-shaped test bench 1 and onto the buffer plate 23 . The buffer plate 23 rotates under the impact of the trolley, as shown in FIG. Figure 8In the state shown, the trolley enters the storage cavity 26. At this time, the baffle 24 blocks the top of the storage cavity 26, so that the trolley is stored in the storage cavity 26. By removing the screws of the square baffle 25, the trolley can be taken out to achieve stable reception of the trolley.

[0041] Example 2

[0042] Reference Figure 1 and Figure 2 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that:

[0043] A slide seat 4 is arranged below the moving seat 5, and a slider 51 is installed at the bottom end of the moving seat 5. The slider 51 is in a T-shaped structure. The slider 51 is limited to slide in the slide seat 4, and a scale line parallel to the horizontal state of the U-shaped experimental platform plate 1 is arranged on the slide seat 4. An arrow mark is arranged on one side of the moving seat 5, and the arrow mark faces the scale line. In order to better utilize the high-speed camera 54 to collect the speed of the trolley, the moving seat 5 is moved under the mark of the scale line. The high-speed camera 54 can measure the speed of the trolley at any position on the U-shaped experimental platform plate 1, such as measuring the speed of the trolley in the middle of the U-shaped experimental platform plate 1, or measuring the speed of the trolley at the end of the U-shaped experimental platform plate 1, thereby improving the flexibility of the speed measurement position of the trolley, so that a variety of physical experiments can be carried out.

[0044] A lifting column 52 is vertically inserted inside the moving seat 5, and a plurality of screw holes are provided in a vertical array on the side wall of the lifting column 52. A locking screw 53 is installed on the outer wall of the moving seat 5, and the locking screw 53 is connected to the corresponding screw hole. A high-speed camera 54 is installed on the top of the lifting column 52. When the U-shaped experimental platform 1 is adjusted to an inclined state, the height of the U-shaped experimental platform 1 changes. At this time, when testing the trolley at the end of the U-shaped experimental platform 1, it is necessary to adjust the height of the high-speed camera 54 to ensure that the trolley is within the collection range of the high-speed camera 54.

[0045] The remaining structures are the same as those of Example 1.

[0046] Example 3

[0047] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that:

[0048] The tilt adjustment assembly 3 includes two legs 31, a U-shaped sleeve 33 is arranged between the tops of the two legs 31, and the U-shaped sleeve 33 is installed on the lower end surface of the U-shaped experimental table 1. One side of the top of one of the legs 31 is screwed with an angle adjustment screw 36, and the angle adjustment screw 36 is screwed in or out to drive the U-shaped experimental table 1 to rotate. A central shaft sleeve 32 is coaxially arranged in the U-shaped sleeve 33, and the two ends of the central shaft sleeve 32 are respectively connected to end sleeves 321. A clamping plate 323 is connected between the bottom ends of the end sleeves 321. A clamping groove 331 is provided at the bottom of the U-shaped sleeve 33. The clamping plate 323 is clamped in the clamping groove 331. The clamping plate 323 holds the U-shaped sleeve 33 so that when the central shaft sleeve 32 rotates, the U-shaped sleeve 33 also rotates. The two end sleeves 321 are located at both ends of the U-shaped sleeve 33. The ends of the two groups of end sleeves 321 are movably connected to the tops of the corresponding legs 31 respectively. The U-shaped experimental table 1 is mounted on the legs 31 through the end sleeves 321 The bottom end of the leg 31 is connected to the ground with a bolt and nut assembly, an adjusting shaft 34 is inserted into the end sleeve 321 near the angle adjustment screw 36, a thread groove 322 is provided in the center sleeve 32, and a tooth block 341 is provided on the outer wall of the adjusting shaft 34. The tooth block 341 is limited to move in the thread groove 322, and the angle adjustment screw 36 is screwed in to drive the adjusting shaft 34 to axially insert, so that the buffer plate 23 rotates, and one end of the adjusting shaft 34 extends to one side of the leg 31, and the adjusting shaft 34 is adjusted. The end of the joint shaft 34 is connected to a square end plate 342, and a U-shaped limit frame 35 is provided on the outer sleeve of the square end plate 342. The U-shaped limit frame 35 is installed on the top of the support leg 31, and the U-shaped limit frame 35 limits the linear movement of the square end plate 342. The angle adjustment screw 36 is movably penetrated and matched with the bottom end of the square end plate 342. The operating rod of the angle adjustment screw 36 is located on one side of the square end plate 342, and a circular ring is sleeved on the angle adjustment screw 36, and the circular ring is located on the other side of the square end plate 342.

[0049] During use, when the inclination angle of the U-shaped experimental table plate 1 needs to be adjusted, the angle adjustment screw 36 is screwed inward so that the angle adjustment screw 36 pushes the square end plate 342 to move linearly, the adjustment shaft 34 moves axially, and the tooth block 341 slides in the thread groove 322. Under the limitation of the thread groove 322, the center shaft sleeve 32 rotates, thereby holding the U-shaped sleeve 33 and rotating together, thereby realizing the inclination adjustment of the U-shaped experimental table plate 1; a circular ring is sleeved on the angle adjustment screw 36, and the circular ring is located on the other side of the square end plate 342. When the inclination angle of the U-shaped experimental table plate 1 needs to be adjusted in the opposite direction, it can be done by screwing out the angle adjustment screw 36 outward, which is simple and convenient to operate.

[0050] The remaining structure is the same as that of Example 2.

[0051] 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 computer vision experimental platform, comprising a mobile seat (5), wherein a high-speed camera (54) and a display screen (55) are arranged on the top of the mobile seat (5), characterized in that: At least two groups of U-shaped experimental table boards (1) are arranged on one side of the movable seat (5); a tilt adjustment component (3) is arranged at the bottom of the U-shaped experimental table board (1) and near the middle of the U-shaped experimental table board (1); the tilt adjustment component (3) is used to adjust the tilt rotation angle of the U-shaped experimental table board (1); and receiving components (2) are respectively arranged at both ends of the U-shaped experimental table board (1); The receiving assembly (2) comprises a receiving cylinder seat (22), a buffer cavity with a cylindrical structure is arranged inside the receiving cylinder seat (22), an inlet (21) is opened at the end of the receiving cylinder seat (22) close to the U-shaped experimental table plate (1), a buffer plate (23) is movably connected to the receiving cylinder seat (22) through a pin shaft, the top of the buffer plate (23) extends to contact the inner wall of the receiving cylinder seat (22), a square stopper (25) is inserted and arranged on one side of the receiving cylinder seat (22), a silicone pad is arranged on the inner wall of the square stopper (25), the square stopper (25) is located below the U-shaped experimental table plate (1), and the square stopper (25) is connected to the receiving cylinder seat (22) by using a quick-release screw.

2. The computer vision test bench according to claim 1, characterized in that: The buffer plate (23) is of an L-shaped structure. When in a material receiving state, one side of the bottom of the buffer plate (23) is close to the U-shaped experimental table plate (1). The bottom end of the buffer plate (23) is connected to a baffle plate (24). When the buffer plate (23) is rotated to a 90° state, one side of the baffle plate (24) is close to the U-shaped experimental table plate (1). A storage cavity (26) is formed between the baffle plate (24), the buffer plate (23), the receiving cylinder seat (22) and the square baffle seat (25).

3. The computer vision test bench according to claim 2, characterized in that: A slide seat (4) is arranged below the movable seat (5), a slider (51) is installed at the bottom end of the movable seat (5), the slider (51) is in a T-shaped structure, the slider (51) is limited in position and slides in the slide seat (4), a scale line parallel to the horizontal state of the U-shaped experimental table plate (1) is arranged on the slide seat (4), and an arrow mark is arranged on one side of the movable seat (5), and the arrow mark faces the scale line.

4. The computer vision test bench according to claim 3, characterized in that: A lifting column (52) is vertically inserted inside the movable seat (5), and a plurality of screw holes are arranged in a vertical array on the side wall of the lifting column (52). A locking screw (53) is installed on the outer wall of the movable seat (5), and the locking screw (53) is connected to the corresponding screw hole. The high-speed camera (54) is installed on the top of the lifting column (52).

5. The computer vision test bench according to claim 4, characterized in that: The tilt adjustment assembly (3) comprises two legs (31), a U-shaped sleeve (33) is arranged between the top ends of the two legs (31), the U-shaped sleeve (33) is mounted on the lower end surface of the U-shaped experimental table (1), and an angle adjustment screw (36) is screwed in or out on one side of the top of one of the legs (31) to drive the U-shaped experimental table (1) to rotate.

6. The computer vision test bench according to claim 5, characterized in that: A central shaft sleeve (32) is coaxially arranged in the U-shaped sleeve (33), and end sleeves (321) are respectively connected to the two ends of the central shaft sleeve (32), and a clamping plate (323) is connected between the bottom ends of the two end sleeves (321). A clamping groove (331) is provided at the bottom of the U-shaped sleeve (33), and the clamping plate (323) is clamped in the clamping groove (331). The two end sleeves (321) are located at the two ends of the U-shaped sleeve (33), and the ends of the two groups of end sleeves (321) are respectively movably connected to the tops of the corresponding legs (31).

7. The computer vision test bench according to claim 6, characterized in that: An adjusting shaft (34) is inserted into an end sleeve (321) close to the angle adjusting screw (36); a thread groove (322) is provided in the central sleeve (32); a tooth block (341) is provided on the outer wall of the adjusting shaft (34); the tooth block (341) is limited in movement in the thread groove (322); the angle adjusting screw (36) is screwed in to drive the adjusting shaft (34) to be axially inserted, so that the buffer plate (23) rotates.

8. The computer vision test bench according to claim 7, characterized in that: One end of the adjusting shaft (34) extends to one side of the supporting leg (31); the end of the adjusting shaft (34) is connected to a square end plate (342); a U-shaped limit frame (35) is provided on the outer sleeve of the square end plate (342); the U-shaped limit frame (35) is installed on the top of the supporting leg (31); the U-shaped limit frame (35) limits the linear movement of the square end plate (342); the angle adjustment screw rod (36) is movably connected and fitted with the bottom end of the square end plate (342); the operating rod of the angle adjustment screw rod (36) is located on one side of the square end plate (342); a circular ring is sleeved on the angle adjustment screw rod (36); and the circular ring is located on the other side of the square end plate (342).

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