Vision testing device for nondestructive testing

Abstract

The vision detection device comprises an observation bin and a card bin, the observation bin and the card bin are detachably connected, a light source is arranged in the observation bin, an observation mirror is arranged on the side wall, away from the card bin, of the observation bin, and an observation opening is formed in the side wall, close to the card bin, of the observation bin; the side wall, close to the observation bin, of the card bin is provided with a view window which is coaxial with the observation opening and has the same specification as the observation opening, an alternating mechanism and a power mechanism which are connected with each other are arranged in the card bin, the alternating mechanism is provided with a plurality of color cards, and the power mechanism drives the alternating mechanism to rotate and controls any one of the color cards to be detected to correspond to the view window. The observation mirror, the observation opening, the view window and the to-be-detected color card are located on the same sight line; and the background gray values, the digital values and the digital gray values on the plurality of color cards are different. According to the invention, by setting the color cards with different gray value backgrounds and numbers, vision detection is carried out on a worker, and the color cards can be replaced by dismounting the card bin, so that the possibility of cheating is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of vision detection equipment and relates to a vision detection device for non-destructive testing. Background Art

[0002] Color deficiency is a color vision disorder caused by genetic or acquired factors, primarily characterized by reduced color discrimination. Although individuals with color deficiency can see the same colors as normal people, their ability to distinguish colors is slow or very poor. In dim light, some individuals are almost unable to distinguish colors, approaching color blindness. However, in bright, dark colors and good lighting, they can clearly distinguish colors, approaching normal color discrimination.

[0003] Nondestructive testing, also known as non-destructive testing, is a comprehensive application of techniques to measure and evaluate the physical and mechanical properties of materials, including various defects and other technical parameters, both internal and external, without destroying or damaging the raw materials and workpieces being tested. Real-time imaging is an X-ray nondestructive testing method that uses a real-time on-screen display of test results to qualitatively and quantitatively analyze, judge, and evaluate the material under test. This information provides information on the material's uniformity and consistency, as well as its structure, assembly, density, and thickness, achieving the purpose of nondestructive testing. In the early days, real-time imaging was referred to as industrial television because of the analog images produced. With the rapid development of digital technology, especially digital imaging, real-time imaging has become more digital, also known as digital imaging. The two concepts and methods are the same. In current non-destructive testing, the damaged parts of the product are confirmed by judging the grayscale value of the imaging results. The final product test results require the testers to observe and judge with their eyes. Therefore, there are strict requirements on whether the non-destructive testers are color blind. If the non-destructive testers are color blind, it will have serious consequences for the quality control of the product. In order to comply with the production concept of reducing costs and increasing efficiency, there is an urgent need for a device that is simple to operate, allows non-destructive testers to conduct vision testing independently anytime and anywhere, and does not cause non-destructive testers to cheat when testing their vision. Summary of the Invention

[0004] The object of the present invention is to provide a vision testing device for non-destructive testing, which has a simple structure and an anti-cheating feature through a detachable color card structure.

[0005] The technical solution adopted by the present invention is a vision detection device for non-destructive testing, including an observation chamber and a card chamber, which are detachably connected. A light source is provided in the observation chamber, an observation mirror is provided on the side wall of the observation chamber away from the card chamber, an observation port is provided on the side wall of the observation chamber close to the card chamber, and a viewing window coaxial with the observation port and of the same specification as the observation port is provided on the side wall of the card chamber close to the observation chamber. A rotation mechanism and a power mechanism connected to each other are provided in the card chamber, a plurality of color cards are provided on the rotation mechanism, and the power mechanism drives the rotation mechanism to rotate, controlling any one of the plurality of color cards to be detected to correspond to the viewing window, and the observation mirror, observation port, viewing window and the color card to be detected are in the same line of sight; the background grayscale values, digital numerical values ​​and digital grayscale values ​​on the plurality of color cards are all different.

[0006] The present invention is also characterized in that:

[0007] The rotation mechanism includes a first rotating belt, which is arranged in a rectangular shape as a closed structure. Several connecting rods are evenly arranged on the side wall of the first rotating belt. Several connecting rods are fixed with card slots, and the color cards are removably arranged in the card slots; teeth are provided on the inner side of the first rotating belt, and the first rotating belt is engaged with the power mechanism through the teeth.

[0008] The power mechanism includes a driving gear and a driven gear that are meshed with each other. The driving gear and the driven gear are meshed with a first rotating belt. A support column is keyed to the axis of the driving gear, and both ends of the support column are connected to the two side walls of the card magazine through bearings; a fixed support column is provided at the axis of the driven gear, and a bearing is provided between the fixed support column and the driven gear, and both ends of the fixed support column are fixed to the two side walls of the card magazine; the support column on the side of the driving gear away from the color card is circumferentially provided with meshing teeth; and it also includes a motor, a transmission gear is connected to the motor output shaft, and the meshing teeth of the transmission gear and the support column are meshed and connected through a second rotating belt.

[0009] The observation mirror is provided with a light-shielding cover made of plastic.

[0010] A folding support plate is provided at the bottom of the observation chamber, a bottom support is provided at the bottom of the support plate, and a uniform anti-slip groove is opened at the bottom of the bottom support.

[0011] The bottom support is made of rubber.

[0012] The vision detection device also includes an electronic equipment compartment connected to the side wall of the observation compartment, and the electronic equipment compartment is equipped with a data processing module, a voice recognition module, a storage module and a power module; the side wall of the electronic equipment compartment is provided with a display screen and a microphone, the display screen is electrically connected to the storage module, the microphone is electrically connected to the voice recognition module and the storage module in turn, the voice recognition module is also electrically connected to the data processing module, and the data processing module is electrically connected to the power module and the motor in turn.

[0013] The surface of the color card is provided with a grayscale background, and a numerical value is provided within the grayscale background; the background grayscale and numerical value on the surfaces of several color cards are different, and the numerical value is the difference between the grayscale of the numerical value itself and the grayscale of the background.

[0014] The illumination of the light source is 500lx~750lx.

[0015] The distance between the observation mirror and the color card is 300~500mm.

[0016] The beneficial effects of the present invention are:

[0017] The present invention uses color cards with different grayscale backgrounds and numbers to test workers' vision. The color cards can be replaced by removing the card compartment, eliminating the need for workers to memorize the color card values ​​and further reducing the possibility of cheating. The present invention also has a simple structure and low production cost, which conforms to the concept of reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is a schematic structural diagram of a vision detection device for non-destructive testing according to the present invention;

[0019] Figure 2 It is a schematic structural diagram of a card bin in a vision testing device for non-destructive testing according to the present invention;

[0020] Figure 3 yes Figure 2 Left view of;

[0021] Figure 4 It is a schematic diagram of the position of the observation port on the card compartment in the vision testing device for non-destructive testing of the present invention;

[0022] Figure 5 It is a schematic diagram of the internal structure of the electronic equipment compartment in the vision detection device for non-destructive testing of the present invention.

[0023] In the figure, 1. light-shielding cover, 2. observation mirror, 3. observation compartment, 4. card compartment, 5. electronic equipment compartment, 6. support plate, 7. display screen, 8. microphone, 9. bottom support, 10. motor, 11. color card, 12. driving gear, 13. first rotating belt, 14. driven gear, 15. second rotating belt, 16. observation port, 17. rotating support column, 18. fixed support column, 19. voice recognition module, 20. storage module, 21. data processing module, 22. power module. DETAILED DESCRIPTION

[0024] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 1As shown, the present invention discloses a vision detection device for non-destructive testing, comprising an observation chamber 3 and a card chamber 4, wherein the observation chamber 3 and the card chamber 4 are detachably connected, a light source is provided in the observation chamber 3, an observation mirror 2 is provided on the side wall of the observation chamber 3 away from the card chamber 4, and a hole is provided on the side wall of the observation chamber 3 close to the card chamber 4. Figure 3 As shown in the observation port 16, the side wall of the card chamber 4 near the observation chamber 3 is provided with a viewing window coaxial with the observation port and of the same specifications. The card chamber 4 is provided with a rotation mechanism and a power mechanism connected to each other. A plurality of color cards 11 are provided on the rotation mechanism. The power mechanism drives the rotation mechanism to rotate and controls any one of the color cards to be detected among the plurality of color cards 11 to correspond to the viewing window. The observation mirror 2, the observation port 16, the viewing window and the color card to be detected are in the same line of sight; the background grayscale values, digital numerical values ​​and digital grayscale values ​​on the plurality of color cards 11 are all different.

[0027] Furthermore, the illumination of the light source is 500lx to 750lx.

[0028] Furthermore, the distance between the observation mirror 2 and the color card 11 is 300-500 mm.

[0029] In the present invention, the observation chamber 3 and the card chamber 4 are detachably connected, which facilitates the replacement of the color card 11 during actual use. The structural form of the card chamber 4 is not limited and can be a sliding door type or a drawer type, and the color card 11 can be removed. A light source is provided in the observation chamber 3 to simulate the daily light environment. During the rotation process, the rotation mechanism drives the color card 11 to rotate, so that each color card 11 can be observed through the viewing window and the observation port 16 through the observation mirror 2 to further test the vision of the staff. A power mechanism is used to provide power to drive the rotation mechanism to rotate, which further drives the color card 11 to move. During actual use, the structure of the rotation mechanism can be various, such as a disc rotation type, a conveyor belt rotation type, etc., and different power mechanisms can be used according to the different structures of the rotation mechanism to achieve the technical solution of the present invention. The present invention tests the vision of the staff by setting backgrounds and numbers of different grayscale values ​​for the color card 11. The color card 11 can be replaced by removing the card chamber 4, which avoids the staff from memorizing the values ​​of the color card 11 and further avoids the possibility of cheating.

[0030] Example 2

[0031] like Figure 2 and Figure 4 As shown, based on Example 1, the rotation mechanism includes a first rotating belt 13, which is arranged in a rectangular shape as a closed structure. A number of connecting rods are evenly provided on the side wall of the first rotating belt 13, and a card slot is fixed on the several connecting rods. The color card 11 is detachably arranged in the card slot; teeth are provided on the inner side of the first rotating belt 13, and the first rotating belt 13 is engaged with the power mechanism through the teeth.

[0032] Furthermore, the power mechanism includes a driving gear 12 and a driven gear 14 that are meshed with each other. The driving gear 12 and the driven gear 14 are meshed with a first rotating belt 13. The driving gear 12 is keyed to a support column 17 at the axis, and both ends of the support column 17 are connected to the two side walls of the card bin 4 through bearings; a fixed support column 18 is provided at the axis of the driven gear 14, and a bearing is provided between the fixed support column 18 and the driven gear 14, and both ends of the fixed support column 18 are fixedly connected to the two side walls of the card bin 4; the support column 17 on the side of the driving gear 12 away from the color card 11 is circumferentially provided with meshing teeth; and it also includes a motor 10, and a transmission gear is connected to the output shaft of the motor 10, and the meshing teeth of the transmission gear and the support column 17 are meshed and connected through a second rotating belt 15.

[0033] In the present invention, the rotation mechanism is arranged in the form of a rectangular conveyor belt. A driving gear 12 and a driven gear 14 that mesh with each other are provided on the inner wall of the first rotating belt 13. The driving gear 12 and the driven gear 14 are meshed with the first rotating belt 13. The driving gear 12 serves as a power wheel and is directly connected to the power mechanism. In actual use, the driving gear 12 is connected to the support column 17 through a key. The connection structure is simple and reliable. In order to ensure the stable operation of the entire rotation mechanism in the card compartment 4, the driving gear 12 and the driven gear 14 are limited by the rotating support column 17 and the fixed support column 18. The first rotating belt 13 is positioned to limit the rotation. The rotating support column 17 is rotatable, primarily to drive the driving gear 12, while the fixed support column 18 is non-rotatable and serves only to limit the position of the driven gear 14. To prevent jamming, a bearing is provided between the driven gear 14 and the fixed support column 18. In a specific implementation, a slot is formed at the connection between the fixed support column 18 and the driven gear 14, into which the inner ring of the bearing is engaged; or a mounting slot is formed at the axis of the driven gear 14, into which the inner ring of the bearing is embedded; both of these gear mounting structures provide better positioning. Furthermore, the present invention incorporates a slot fixed to the first rotating belt. By inserting the color card 11 into the slot, the color card 11 can be replaced, allowing not only damaged color cards to be replaced but also the order of the color cards 11 to be changed.

[0034] Example 3

[0035] On the basis of embodiment 1, a light shielding cover 1 is provided on the observation mirror 2, and the light shielding cover 1 is made of plastic.

[0036] The present invention sets a light-shielding cover 1 on the observation mirror 2, not only for accurate detection and avoiding detection errors caused by other light sources, but also for limiting the staff's field of vision during the detection process to avoid other possibilities of cheating. At the same time, it avoids the vibration caused by the operation of the power mechanism. Compared with observing directly on the observation mirror 2, it is more comfortable to set the light-shielding cover 1 for detection and will not cause adverse effects on the eyes.

[0037] Example 4

[0038] On the basis of Example 1, a folding support plate 6 is provided at the bottom of the observation chamber 3 , a bottom support 9 is provided at the bottom of the support plate 6 , and a uniform anti-slip groove is provided at the bottom of the bottom support 9 .

[0039] Furthermore, the bottom support 9 is made of rubber.

[0040] During actual use, the support plate 6 is opened from the folded state, and the two support plates 6 form an "eight"-shaped structure, which has better force and stability. A bottom support 9 with an anti-slip groove is provided at the bottom of the support plate 6, which not only reduces the vibration caused by the operation of the power structure during use, but also avoids accidental collision by other people, thereby avoiding further damage to the device.

[0041] Example 5

[0042] like Figure 5 As shown, on the basis of Example 1, the vision detection device also includes an electronic device compartment 5 connected to the side wall of the observation compartment 3, and the electronic device compartment 5 is provided with a data processing module 21, a voice recognition module 19, a storage module 20 and a power module 22; the side wall of the electronic device compartment 5 is provided with a display screen 7 and a microphone 8, the display screen 7 is electrically connected to the storage module 20, and the microphone 8 is electrically connected to the voice recognition module 19 and the storage module 20 in turn, the voice recognition module 19 is also electrically connected to the data processing module 21, and the data processing module 21 is electrically connected to the power module 22 and the motor 10 in turn.

[0043] In the present invention, a data processing module is set in the electronic equipment compartment 5, and the display screen 7 is used to collect information such as the worker's work number, name and department. The display screen 7 is electrically connected to the storage module to enter the information of the staff participating in the vision test; a microphone 8 is set to enable the staff to broadcast the numerical content in the color card 11 by voice, and the microphone 8 is connected to the voice recognition module. The storage module enters the information of the voice recognition module, and the processing module integrates the information and voice information detected by each staff member in the storage module, and the processing module controls the power module according to the entry time of the voice recognition module, and further controls the operation of the motor 10. When the voice recognition module recognizes the information, the processing module sends a signal to the power module to control the motor 10 to rotate for a fixed time until the next color card 11 to be detected reaches the viewing window and stops. The fixed rotation time of the motor 10 is set according to the distance between adjacent color cards 11 on the first rotating belt 13, and the motor 10 works intermittently.

[0044] Example 6

[0045] Based on Example 1, a gray background is provided on the surface of the color card 11, and a numerical value is provided within the gray background. The background grayscale and numerical value on the surfaces of several color cards 11 are different, and the numerical value is the difference between the grayscale of the numerical value itself and the background grayscale.

[0046] In the present invention, the color cards 11 are detachable, and the grayscale values ​​and numerical values ​​of each color card 11 are different. This means that during the actual testing process, the arrangement order of the color cards 11 can be changed, and the numerical values ​​and grayscale values ​​of the color cards 11 can also be changed. New color cards 11 can replace old color cards 11, further eliminating the possibility of cheating. This structure makes it impossible for staff to guess the rotation order, grayscale values, and numerical values ​​of the color cards 11.

[0047] In a specific implementation, the present invention can set 25 color cards 11, as shown in Table 1:

[0048] Table 1

[0049]

[0050] In Table 1, the values ​​in parentheses are the RGB color modes for setting the values. Table 1 only shows one setting mode for the color card 11, and the present invention is not limited to this value.

[0051] During the specific test, the staff member first enters their identity information on the display screen 7, which is stored by the storage module 20. Then, the microphone 8 transmits a voice command signal to the voice recognition module 19, which further transmits the start signal of the test to the storage module 20 and the data processing module 21. The storage module 20 stores the identity information and voice information of the individual staff member. The data processing module 21 controls the power module to start the motor 10, controls the power mechanism to work, and further controls the rotation mechanism to rotate the color card 11 to the observation port 16. The motor 10 stops working and observation is carried out. At this time, the staff member voice broadcasts according to the number on the color card 11. The storage module 20 continues to enter the information, and the data processing module 21 controls the power module to start the motor 10 again. The above steps are repeated until all color cards are observed. The voice information is compared with the information on the color card 11 to determine the staff member's vision test results.

Claims

1. A vision detection device for non-destructive testing, characterized in that: The invention comprises an observation chamber (3) and a card chamber (4), wherein the observation chamber (3) and the card chamber (4) are detachably connected, a light source is provided in the observation chamber (3), an observation mirror (2) is provided on the side wall of the observation chamber (3) away from the card chamber (4), an observation port (16) is provided on the side wall of the observation chamber (3) close to the card chamber (4), and a viewing window coaxial with the observation port and having the same specifications as the viewing window is provided on the side wall of the card chamber (4) close to the observation chamber (3), a rotation mechanism and a power mechanism connected to each other are provided in the card chamber (4), a plurality of color cards (11) are provided on the rotation mechanism, and the power mechanism drives the rotation mechanism to rotate, and controls any one of the color cards to be detected in the plurality of color cards (11) to correspond to the viewing window, and the observation mirror (2), the observation port (16), the viewing window and the color card to be detected are in the same line of sight; and the background grayscale values, digital numerical values ​​and digital grayscale values ​​on the plurality of color cards (11) are all different.

2. The vision detection device for non-destructive testing according to claim 1, characterized in that: The rotation mechanism comprises a first rotating belt (13), which is arranged in a rectangular shape and is a closed structure. A plurality of connecting rods are evenly arranged on the side wall of the first rotating belt (13), and a card slot is fixedly connected to the plurality of connecting rods. The color card (11) is detachably arranged in the card slot; and teeth are provided on the inner side of the first rotating belt (13), and the first rotating belt (13) is meshed and connected with the power mechanism through the teeth.

3. The vision detection device for non-destructive testing according to claim 2, characterized in that: The power mechanism comprises a driving gear (12) and a driven gear (14) meshing with each other, wherein the driving gear (12) and the driven gear (14) mesh with the first rotating belt (13), a support column (17) is keyed at the axis of the driving gear (12), and both ends of the support column (17) are connected to the two side walls of the card bin (4) through bearings; a fixed support column (18) is provided at the axis of the driven gear (14), a bearing is provided between the fixed support column (18) and the driven gear (14), and both ends of the fixed support column (18) are fixed to the two side walls of the card bin (4); a support column (17) on the side of the driving gear (12) away from the color card (11) is provided with meshing teeth in the circumferential direction; and the power mechanism further comprises a motor (10), wherein a transmission gear is connected to the output shaft of the motor (10), and the meshing teeth of the transmission gear and the support column (17) are meshed and connected through the second rotating belt (15).

4. The vision detection device for non-destructive testing according to claim 1, characterized in that: The observation mirror (2) is provided with a light-shielding sleeve (1), which is made of plastic material.

5. The vision detection device for non-destructive testing according to claim 1, characterized in that: The bottom of the observation chamber (3) is provided with a folding support plate (6), the bottom of the support plate (6) is provided with a bottom support (9), and the bottom of the bottom support (9) is provided with uniform anti-slip grooves.

6. The vision detection device for non-destructive testing according to claim 5, characterized in that: The bottom support (9) is made of rubber.

7. The vision detection device for non-destructive testing according to claim 1, characterized in that: The vision detection device further comprises an electronic device compartment (5) connected to the side wall of the observation compartment (3), wherein the electronic device compartment (5) is provided with a data processing module (21), a speech recognition module (19), a storage module (20) and a power module (22); a display screen (7) and a microphone (8) are provided on the side wall of the electronic device compartment (5), the display screen (7) is electrically connected to the storage module (20), the microphone (8) is electrically connected to the speech recognition module (19) and the storage module (20) in sequence, the speech recognition module (19) is also electrically connected to the data processing module (21), and the data processing module (21) is electrically connected to the power module (22) and the motor (10) in sequence.

8. The vision detection device for non-destructive testing according to claim 1, characterized in that: The surface of the color card (11) is provided with a gray background, and a numerical value is provided in the gray background; the background gray and numerical values ​​on the surfaces of several color cards (11) are different, and the numerical value is the difference between the gray of the numerical value itself and the background gray.

9. The vision detection device for non-destructive testing according to claim 8, characterized in that: The illumination of the light source is 500lx to 750lx.

10. The vision detection device for non-destructive testing according to claim 1, characterized in that: The distance between the observation mirror (2) and the color card (11) is 300-500 mm.

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