White stripe image acquisition device

Abstract

The utility model relates to the field of image acquisition technology, and in particular to a white bar image acquisition device, comprising: an image acquisition device, used to acquire the left half hind leg contour image and the left half fat image of each target white bar on the production line, wherein each target white bar is two symmetrical half white bars; a white bar fixing device, connected to the image acquisition device, used to flip and block each target white bar, so that the image acquisition device acquires the left half hind leg contour image and the left half fat image of each target white bar. Thus, the existing white bar image acquisition device is solved, and the problems that the hind leg and back fat of the white bar cannot be photographed at the same time by the existing white bar image acquisition device, and the shooting efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of image acquisition, in particular to a white-strip image acquisition device. Background Art

[0002] The grading of white carcasses is the main basis for pig slaughtering companies to settle the purchase of live pigs. After the pigs are slaughtered, the slaughtering companies will grade the white carcasses according to a combination of one or more key indicators such as the weight of the produced white carcasses, the thickness of fat between 6 and 7 ribs, the thickness of fat in the gluteus medius, body shape, breed, etc.

[0003] At present, the research on intelligent pig grading in the domestic slaughtering industry is basically "zero". The grading process relies on a large number of operators to observe the hind legs and back fat with their eyes and make subjective judgments. This method requires a large number of graders and has a lot of subjective human intervention. It is difficult to improve the white strip connection rate. In addition, due to the differences in market demand for white strips in the north and south, and the complexity of Chinese pig breeds, manual grading has great limitations.

[0004] Therefore, relevant technical personnel have proposed to use the existing image recognition algorithm to grade the images of white bar, but the existing equipment for collecting white bar images cannot simultaneously capture the hind legs and back fat of the white bar, and the shooting efficiency is low. Therefore, there is an urgent need for a white bar image collection device that can accurately capture the position to determine the grade of the white bar and has a high shooting efficiency. Utility Model Content

[0005] The utility model provides a white stripe image acquisition device to solve the problems that the existing equipment for acquiring white stripe images cannot simultaneously photograph the hind legs and back fat of the white stripe and has low photographing efficiency.

[0006] The utility model provides a white stripe image acquisition device, comprising: an image acquisition device, used for acquiring a left half hind leg contour image and a left half inner fat image of each target white stripe on a production line, wherein each target white stripe is two symmetrical half white stripes; a white stripe fixing device, the white stripe fixing device is connected to the image acquisition device, and is used for flipping and blocking each target white stripe, so that the image acquisition device acquires the left half hind leg contour image and the left half inner fat image of each target white stripe.

[0007] Optionally, the white strip fixing device includes a flipper, a fixing bracket, a blocker, a first proximity switch, a second proximity switch and a third proximity switch, wherein:

[0008] The flipper is arranged at the upper end of one side of the fixed bracket, and is used to flip each target white strip so that the back of each target white strip faces the traveling direction of the production line;

[0009] The fixed support is arranged below the production line, and is used to make each target white strip after flipping move stably along the moving direction of the production line;

[0010] The blocker is arranged on the fixing bracket, and the paddle of the blocker is perpendicular to the fixing bracket, and is used to block the right half sheet from moving forward, so that the inside of the unblocked half sheet white strip is exposed;

[0011] The first proximity switch is arranged at the front end of the flipper and is connected to the image acquisition device, and is used to control the image acquisition device to acquire an image of the left half of the hind leg contour of each target white stripe;

[0012] The second proximity switch is arranged at the front end of the fixing bracket and is connected to the image acquisition device, and is used to open the blocker to block the left half of each target white strip, and the right half of the white strip continues to move forward;

[0013] The third proximity switch is arranged at the end of the fixed bracket and is connected to the image acquisition device, and is used to control the image acquisition device to capture the image of the unblocked left half of each target white strip and lower the blocker.

[0014] Optionally, the fixed bracket includes a base, a first column, a second column, a first stopper, a second stopper, a third stopper and a fourth stopper, wherein:

[0015] The base is arranged below the production line, the first column and the second column are vertically installed at the front end and the end of the base respectively, the first baffle rod and the second baffle rod are respectively located on both sides of the first column and the second column, and the first baffle rod and the second baffle rod are respectively connected to the same position on the first column and the second column, the third baffle rod and the fourth baffle rod are respectively located on both sides of the first column and the second column, and the third baffle rod and the fourth baffle rod are respectively connected to the same position of the first column and the second column, and the third baffle rod and the fourth baffle rod are arranged below the first baffle rod and the second baffle rod.

[0016] Optionally, the flipper is arranged at the top end of the first column, and the installation direction is opposite to the traveling direction of the production line.

[0017] Optionally, the blocker is fixed between the third gear lever and the fourth gear lever, and a paddle of the blocker is perpendicular to the third gear lever or the fourth gear lever.

[0018] Optionally, the first and second baffle bars, the third and fourth baffle bars all extend toward each other in a direction opposite to the traveling direction of the production line.

[0019] Optionally, the second proximity switch is arranged at a front end of the first gear lever or a front end of the third gear lever.

[0020] Optionally, the third proximity switch is arranged at an end of the first gear lever or an end of the third gear lever.

[0021] Optionally, the image acquisition device includes a first high-speed industrial camera and a second high-speed industrial camera, wherein:

[0022] The first high-speed industrial machine is arranged in front of or behind the first proximity switch and is connected to the first proximity switch, and is used to collect the left half of the hind leg contour image of the current target white strip when the left half of the white strip of each target white strip triggers the first proximity switch;

[0023] The second high-speed industrial camera is arranged in front of the third proximity switch and connected to the third proximity switch, and is used for collecting the left half fat image of the current target white stripe when the left half white stripe of each target white stripe triggers the third proximity switch.

[0024] The white strip image acquisition device proposed by the utility model can sequentially acquire images of the left half and the right half of each target white strip on a production line without manually flipping any half of the white strip, and can simultaneously and accurately acquire the left half hind leg contour image and the left half fat image of each target white strip, thereby improving the efficiency of image acquisition; in addition, after acquiring the hind leg contour image and the fat image, it is helpful to subsequently use an image recognition algorithm to grade the pork, thereby greatly improving the efficiency of grading and avoiding interference from human factors.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0027] Figure 1 A schematic block diagram of the white-strip image acquisition device provided by the utility model;

[0028] Figure 2 This is a full view of the white stripe image acquisition device provided by the utility model;

[0029] Figure 3 This is a front view of the white-strip image acquisition device provided by the utility model;

[0030] Figure 4A top view of the white-strip image acquisition device provided by the utility model;

[0031] Figure 5 It is a side view of the white stripe image acquisition device provided by the utility model;

[0032] Figure 6 A schematic diagram of the working principle of the white-strip image acquisition device provided by the utility model;

[0033] Figure 7 The diagram is a schematic diagram of the grading of the angle of fullness of the hind legs provided by the utility model, wherein (a) is grade A+ (angle above 42°), (b) is grade A (angle 38-42°), (c) is grade B (angle 34-38°), and (d) is grade C (angle below 34°);

[0034] Figure 8 This is a schematic diagram of the grading of back fat thickness and tail fat thickness provided by the utility model.

[0035] Description of reference numerals:

[0036] 100-white-strip image acquisition device, 10-image acquisition equipment, 11-first high-speed industrial camera, 12-second high-speed industrial camera, 20-white-strip fixing device, 21-flipper, 22-fixing bracket (not shown in the figure), 221-base, 222-first column, 223-second column, 224-first gear lever, 225-second gear lever, 226-third gear lever, 227-fourth gear lever, 23-blocker, 24-first proximity switch, 25-second proximity switch, 26-third proximity switch. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The white stripe image acquisition device of the present invention will be described below with reference to the accompanying drawings.

[0039] Figure 1 The present invention is a schematic block diagram of a white-strip image acquisition device provided by the present invention.

[0040] like Figure 1 As shown, the white-strip image acquisition device 100 includes: an image acquisition device 10 and a white-strip fixing device 20 .

[0041] The image acquisition device 10 is used to acquire the left half hind leg contour image and the left half fat image of each target white stripe on the production line, wherein each target white stripe is two symmetrical half white stripes. The white stripe fixing device 20 is connected to the image acquisition device 10, and is used to flip and block each target white stripe, so that the image acquisition device acquires the left half hind leg contour image and the left half fat image of each target white stripe.

[0042] In some embodiments, the white strip fixing device 20 includes a flipper 21, a fixing bracket 22, a blocker 23, a first proximity switch 24, a second proximity switch 25 and a third proximity switch 26, wherein:

[0043] The flipper 21 is arranged at the upper end of one side of the fixed bracket 22, and is used to flip each target white strip so that the back of each target white strip faces the traveling direction of the production line;

[0044] The fixed bracket 22 is arranged below the production line, and is used to make each target white strip after flipping move stably along the moving direction of the production line;

[0045] The blocker 23 is arranged on the fixed bracket 22, and the paddle of the blocker is perpendicular to the fixed bracket, and is used to block the right half of the white strip from moving forward, so that the inside of the left half of the white strip that is not blocked is exposed;

[0046] The first proximity switch 24 is disposed at the front end of the flipper and is connected to the image acquisition device, and is used to control the image acquisition device to acquire an image of the left half of the hind leg contour of each target white stripe;

[0047] The second proximity switch 25 is disposed at the front end of the fixed bracket and is connected to the image acquisition device, and is used to open the blocker to block the left half of each target white stripe, while the right half of the white stripe continues to move forward;

[0048] The third proximity switch 26 is disposed at the end of the fixed bracket and connected to the image acquisition device, and is used to control the image acquisition device to acquire images of the unblocked left half of each target white stripe and lower the blocker.

[0049] In the actual implementation process, Figure 2-6As shown, the fixed bracket 22 includes a base 221, a first column 222, a second column 223, a first baffle 224, a second baffle 225, a third baffle 226 and a fourth baffle 227, wherein the base 221 is arranged below the production line, the first column 222 and the second column 223 are respectively vertically mounted at the front end and the end of the base 221, the first baffle 224 and the second baffle 225 are respectively located at both sides of the first column 222 and the second column 223, and the first baffle 224 and the second baffle 225 are respectively connected to the same position on the first column 222 and the second column 223, that is, the first baffle 224 and the second baffle 225 are respectively connected to the same position on the first column 222 and the second column 223, that is, the first baffle 224 and the second baffle 225 are respectively connected to the first column 222 and the second column 223. The second baffle rod 225 is in the same plane after being connected, and the plane is perpendicular to the first column 222 and the second column 223. The third baffle rod 226 and the fourth baffle rod 227 are respectively located on both sides of the first column 222 and the second column 223, and the third baffle rod 226 and the fourth baffle rod 227 are respectively connected to the same position of the first column 222 and the second column 223, that is, the third baffle rod 226 and the fourth baffle rod 227 are in the same plane after being connected, and the plane is perpendicular to the first column 222 and the second column 223. The third baffle rod 226 and the fourth baffle rod 227 are arranged below the first baffle rod 224 and the second baffle rod 225, and are parallel to each other.

[0050] The flipper 21 is arranged at the top of the first column 222, and the installation direction is opposite to the moving direction of the production line, so that the flip bracket of the flipper 21 faces the moving target white stripe, wherein the first proximity switch 24 is arranged at the front end of the flipper, but is not installed on the flipper. A person skilled in the art can install the first proximity switch 24 on the production line to ensure that when each target white stripe is triggered, the image acquisition device 10 can capture the hind leg contour image of the two half pieces of white stripe, and after the shooting is completed, each target white stripe is flipped in position so that the back of the white stripe faces the production line direction, and then the left half piece of fat image is captured in the subsequent process;

[0051] The blocker 23 is fixed between the third gear rod 226 and the fourth gear rod 227, and the paddle of the blocker 23 is perpendicular to the third gear rod 226 or the fourth gear rod 227. When the paddle of the blocker 23 is set perpendicular to the third gear rod 226, the second proximity switch 25 is set to the front end of the third gear rod 226 or the front end of the first gear rod 224, and the third proximity switch 26 is set to the end of the third gear rod 226 or the end of the first gear rod 224. The paddle will block the right half of the white strip on the side of the third gear rod 226 or the side of the first gear rod 224. Subsequently, the image acquisition device 10 needs to be set to the side of the third gear rod 226 or the side of the first gear rod 224. When each target white strip touches the third proximity switch 26, the image acquisition device 10 will capture the image on the side of the fourth gear rod 227 or The image of the left half of the fat of the left half of the white stripes that are not blocked on the side of the second barrier rod 225. When the paddle of the blocker 23 is set perpendicular to the fourth barrier rod 227, the second proximity switch 25 is set to the front end of the fourth barrier rod 227 or the front end of the second barrier rod 225, and the third proximity switch 26 is set to the end of the fourth barrier rod 227 or the end of the second barrier rod 225. The paddle will block the half of the white stripes on the side of the fourth barrier rod 227 or the side of the second barrier rod 225. Subsequently, the image acquisition device 10 needs to be set to the side of the fourth barrier rod 227 or the side of the second barrier rod 225. When each target white stripe touches the third proximity switch 26, the image acquisition device 10 will capture the image of the left half of the fat of the left half of the white stripes that are not blocked on the side of the third barrier rod 226 or the side of the first barrier rod 224.

[0052] In some embodiments, the first and second stoppers 224, 225, the third and fourth stoppers 226, 227 all extend toward each other in the opposite direction of travel of the production line.

[0053] During the actual implementation process, the first baffle 224 and the second baffle 225 extend toward each other at one end in the opposite direction of the production line, that is, one end close to the flipping bracket direction of the flipper 21. Similarly, the third baffle 226 and the fourth baffle 227 also extend toward each other at one end in the opposite direction of the production line, that is, one end close to the flipping bracket direction of the flipper 21, so that each target white stripe that swings after flipping is gradually stabilized, making it convenient for the subsequent image acquisition device 10 to acquire the left half of the fat image of the left half of the white stripe that is not blocked.

[0054] In some embodiments, the image acquisition device 10 includes a first high-speed industrial camera 11 and a second high-speed industrial camera 12, wherein:

[0055] The first high-speed industrial machine 11 is arranged in front of or behind the first proximity switch 24 and is connected to the first proximity switch 24, and is used to collect the left half of the hind leg contour image of the current target white strip when each target white strip triggers the first proximity switch 24;

[0056] The second high-speed industrial camera 12 is arranged in front of the third proximity switch 26 and connected to the third proximity switch, and is used to collect the left half fat image of the current half white stripe when any half white stripe in each target white stripe triggers the first proximity switch.

[0057] In the actual implementation process, the first high-speed industrial machine 11 and the second high-speed industrial camera 12 may not be placed on the same side. The utility model sets the first high-speed industrial machine 11 just in front of or just behind the first proximity switch 24. When each target white strip triggers the first proximity switch 24, the first proximity switch 24 will control the first high-speed industrial machine 11 to collect the left half of the hind leg contour image of the current target white strip. The placement position of the second high-speed industrial camera 12 is determined by the installation position of the second proximity switch 25 and the third proximity switch 26. If the second proximity switch 25 and the third proximity switch 26 are installed, the second high-speed industrial camera 12 will be placed on the same side. If the proximity switch 26 is set on the fourth gear lever 227 or the second gear lever 225, the second high-speed industrial camera 12 is set on the side of the fourth gear lever 227 or the second gear lever 225. If the second proximity switch 25 and the third proximity switch 26 are set on the fourth gear lever 227 or the second gear lever 225, the second high-speed industrial camera 12 is set on the side of the fourth gear lever 227 or the second gear lever 225, thereby ensuring that when each target white strip triggers the third proximity switch 26, the third proximity switch 26 will control the second high-speed industrial camera 12 to collect the left half of the fat image of the current target white strip.

[0058] The working process of the white strip image acquisition device proposed by the utility model is as follows: each target white strip on the production line first triggers the first proximity switch 24, and the first proximity switch 24 controls the first high-speed industrial machine 11 to shoot, collect two left half-piece hind leg contour images of each target white strip, and send the two left half-piece hind leg contour images to the pre-prepared image grading device. After shooting, each target white strip will touch the flip bracket of the flipper 21, and the back of each target white strip will face the production line direction, and after flipping, each target white strip in the swing will touch the extension of the first baffle 224 and the second baffle 225. The third gear rod 226 and the fourth gear rod 227 extend thereto, thereby slowly stabilizing. After stabilization, the second proximity switch 25 will be triggered, and the second proximity switch 25 will control the paddle of the blocker 23 to open. The paddle of the blocker 23 blocks the right half of the white strip on the side of the second proximity switch 25, and the unblocked left half of the white strip on the other side continues to move forward, thereby triggering the third proximity switch 26. The third proximity switch 26 will control the second high-speed industrial camera 12 to capture the left half of the unblocked half of the white strip's inner fat image, and send the left half of the inner fat image to the pre-prepared image grading device for grading.

[0059] For example, a pre-prepared image grading device receives two left-half hind leg contour images and left-half inner fat images, and will select any left-half hind leg contour image in each target white strip for identification, grade it according to the fullness of the hind leg, identify and calculate the back fat thickness and tail fat thickness in the left-half inner fat image, and then grade it according to the back fat thickness and tail fat thickness.

[0060] The recognition process of the image grading device prepared in advance can be: receiving the left half hind leg contour image in each target white strip, automatically identifying the hind leg contour in the left half hind leg contour image, and identifying the muscle bulge curve on the inner side of the hind leg, and calculating the angle between the trend line of the curve and the vertical direction by the preset measurement software, such as Figure 7 As shown in , the fullness of the hind legs is graded according to the angle of the hind legs; the left half of the fat image in each target white strip is received, and the fat thickness between the 6th and 7th ribs, the fat and lean meat thickness in the middle hip muscle area, and the body shape and other key indicators (i.e., back fat thickness and tail fat thickness) are identified and calculated. Figure 8 As shown, the fullness of the hind legs is graded according to the back fat thickness and the tail fat thickness, thereby realizing automatic grading of white strips. After completing the grading of the rear leg angle, the back fat thickness and the tail fat thickness, the utility model can also fit the white strip total lean meat content TMP equation according to the two grading results and the fine segmentation data of a single white strip sample to solve the total lean meat content of each target white strip, and then settle the pigs according to the total lean meat content.

[0061] According to the white strip image acquisition device proposed by the utility model, the images of the left half and the right half of each target white strip can be acquired in sequence on a production line at one time, and there is no need to manually flip either half of the white strip, so the left half hind leg contour image and the left half fat image of each target white strip can be accurately acquired simultaneously, thereby improving the efficiency of image acquisition; in addition, after the hind leg contour image and the fat image are acquired, it is helpful to subsequently use image recognition algorithms to grade pork, thereby greatly improving the efficiency of grading and avoiding interference from human factors.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "N" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

Claims

1. A white stripe image acquisition device, characterized in that: include: An image acquisition device, used for acquiring a left half hind leg contour image and a left half fat image of each target white stripe on the production line, wherein each target white stripe is two symmetrical half white stripes; A white stripe fixing device is connected to the image acquisition device and is used to flip and block each target white stripe so that the image acquisition device captures the left half hind leg contour image and the left half fat image of each target white stripe.

2. The white stripe image acquisition device according to claim 1, characterized in that: The white strip fixing device includes a flipper, a fixing bracket, a blocker, a first proximity switch, a second proximity switch and a third proximity switch, wherein: The flipper is arranged at the upper end of one side of the fixed bracket, and is used to flip each target white strip so that the back of each target white strip faces the traveling direction of the production line; The fixed support is arranged below the production line, and is used to make each target white strip after flipping move stably along the moving direction of the production line; The blocker is arranged on the fixing bracket, and the paddle of the blocker is perpendicular to the fixing bracket, and is used to block the right half of the white strip from moving forward, so that the inside of the left half of the white strip that is not blocked is exposed; The first proximity switch is arranged at the front end of the flipper and is connected to the image acquisition device, and is used to control the image acquisition device to acquire an image of the left half of the hind leg contour of each target white stripe; The second proximity switch is arranged at the front end of the fixing bracket and is connected to the image acquisition device, and is used to open the blocker to block the left half of each target white strip, and the right half of the white strip continues to move forward; The third proximity switch is arranged at the end of the fixed bracket and is connected to the image acquisition device, and is used to control the image acquisition device to capture the image of the unblocked left half of each target white strip and lower the blocker.

3. The white stripe image acquisition device according to claim 2, characterized in that: The fixed bracket includes a base, a first column, a second column, a first gear bar, a second gear bar, a third gear bar and a fourth gear bar, wherein: The base is arranged below the production line, the first column and the second column are vertically installed at the front end and the end of the base respectively, the first baffle rod and the second baffle rod are respectively located on both sides of the first column and the second column, and the first baffle rod and the second baffle rod are respectively connected to the same position on the first column and the second column, the third baffle rod and the fourth baffle rod are respectively located on both sides of the first column and the second column, and the third baffle rod and the fourth baffle rod are respectively connected to the same position of the first column and the second column, and the third baffle rod and the fourth baffle rod are arranged below the first baffle rod and the second baffle rod.

4. The white stripe image acquisition device according to claim 3, characterized in that: The flipper is arranged at the top end of the first column, and the installation direction is opposite to the traveling direction of the production line.

5. The white stripe image acquisition device according to claim 3, characterized in that: The blocker is fixed between the third gear lever and the fourth gear lever, and the paddle of the blocker is perpendicular to the third gear lever or the fourth gear lever.

6. The white stripe image acquisition device according to claim 3, characterized in that: The first and second baffles, the third and fourth baffles all extend toward each other in a direction opposite to the traveling direction of the production line.

7. The white stripe image acquisition device according to claim 3, characterized in that: The second proximity switch is arranged at a front end of the first gear lever or a front end of the third gear lever.

8. The white stripe image acquisition device according to claim 3, characterized in that: The third proximity switch is arranged at an end of the first gear lever or an end of the third gear lever.

9. The white stripe image acquisition device according to claim 3, characterized in that: The image acquisition device includes a first high-speed industrial camera and a second high-speed industrial camera, wherein: The first high-speed industrial machine is arranged in front of or behind the first proximity switch and is connected to the first proximity switch, and is used to collect the left half of the hind leg contour image of the current target white strip when the left half of the white strip of each target white strip triggers the first proximity switch; The second high-speed industrial camera is arranged in front of the third proximity switch and connected to the third proximity switch, and is used for collecting the left half fat image of the current target white stripe when the left half white stripe of each target white stripe triggers the third proximity switch.

Images