Intelligent visual detection system for microorganisms on surface of food

Abstract

The invention provides a food surface microorganism intelligent visual detection system which comprises a conveyor, a detection shell is upwards arranged on one side of the conveyor, an inlet and outlet is formed in the side, facing the conveyor, of the detection shell, and a detection table as high as a conveying belt of the conveyor is arranged at the bottom in the detection shell; a horizontal material pushing structure capable of driving materials to enter and exit from the inlet and outlet is arranged above the conveyor; the upper end in the detection shell is slidably connected with a mounting shell, the detection shell is provided with a transverse displacement motor for driving the mounting shell to slide, the lower end of the mounting shell is upwards provided with a telescopic sliding hole, the telescopic sliding hole is slidably connected with a vertical sliding shaft, and the mounting shell is internally provided with a telescopic driving motor for driving the vertical sliding shaft to slide up and down; the lower end of the vertical sliding shaft is provided with a downward ultra-micro-distance camera, and the lower end of the vertical sliding shaft is provided with an LED light supplementing lamp on the periphery of the ultra-micro-distance camera. According to the invention, continuous, rapid and automatic surface microbe detection can be carried out on food, and the detection efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of food safety and hygiene, and relates to an intelligent visual detection system for food surface microorganisms. Background Art

[0002] During production, processing, transportation, and storage, food is susceptible to microbial contamination. In particular, bacteria, molds, yeasts, and other microorganisms are prone to attaching to food surfaces. These microorganisms can not only affect the sensory quality of food but can also cause foodborne illnesses, posing a threat to consumer health. Therefore, the detection of microorganisms on food surfaces has become an important part of ensuring food safety.

[0003] Currently, the detection of microorganisms on food surfaces is primarily used to assess food hygiene and control quality during production. Traditional methods often employ contact plate or swab sampling, transferring samples to culture media for incubation. Colony counts are then performed manually or using a colony counter to determine the degree of microbial contamination on the food surface. While this method offers high accuracy under laboratory conditions, it is cumbersome and time-consuming, and requires destructive sampling, making it difficult to meet the demands of the modern food industry for rapid, efficient, and non-destructive testing.

[0004] Furthermore, with the increasing scale and automation of the food industry, companies are placing higher demands on real-time monitoring capabilities for batches of food. However, existing technologies, which mostly rely on offline sampling and laboratory analysis, are unable to achieve continuous, rapid, and automated surface microbial testing of food. This results in low testing efficiency and makes it difficult to promptly identify potential health and safety hazards. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent visual detection system for food surface microorganisms, which can perform continuous, rapid and automated surface microbial detection on food, has high detection efficiency, and helps to timely discover potential health and safety hazards.

[0006] To solve the above technical problems, the present invention provides an intelligent visual detection system for food surface microorganisms, comprising a conveyor, a conveyor motor for driving the conveyor belt, a detection housing disposed upwardly on one side of the conveyor, the detection housing having an inlet and outlet opening on the side facing the conveyor, a detection platform disposed at the bottom of the detection housing at the same height as the conveyor belt, and a horizontal pusher structure disposed above the conveyor capable of driving material in and out of the inlet and outlet;

[0007] The top of the detection shell is rotatably connected to a transversely arranged transverse threaded drive shaft, and the detection shell is installed with a transverse displacement motor for driving the transverse threaded drive shaft to rotate. The upper end of the detection shell is slidably connected to a mounting shell, and a transverse threaded hole threadedly connected to the transverse threaded drive shaft is provided through the mounting shell. A telescopic sliding hole is upwardly provided at the lower end of the mounting shell, and a vertical sliding shaft is slidably connected to the telescopic sliding hole. A telescopic driving motor for driving the vertical sliding shaft to slide up and down is installed in the mounting shell;

[0008] A downward-facing super-macro camera is installed at the lower end of the vertical sliding shaft, an LED fill light is provided at the lower end of the vertical sliding shaft on the periphery of the super-macro camera, a laser distance sensor is provided downward on the outer side of the vertical sliding shaft, a control panel is provided on one side of the detection shell, an integrated control module is provided in the control panel, and a display screen and multiple control buttons are provided on the outer side of the control panel.

[0009] By adopting the above technical solution, when conducting batch surface microbial testing of food, the food is placed one by one on the conveyor belt of the conveyor, and the conveyor drives the food to move toward the detection shell. The position of the food is intelligently identified by the intelligent detection camera. When the food enters the bottom of the pushing shell, the food is pushed from the inlet and outlet to the turntable in the detection shell through the horizontal pushing structure. According to the position of the food, the lateral displacement motor drives the threaded drive shaft to rotate, so that the ultra-macro camera moves to the top of the food, and the distance between the ultra-macro camera and the food is judged by the laser distance sensor. Based on the detected distance, the telescopic drive motor drives the ultra-macro camera downward to the appropriate position, and the ultra-macro camera can be used to take ultra-macro photos of the food surface to identify the microorganisms on the food surface. The AI ​​system can more accurately and fully identify the types and quantities of microorganisms on the food surface per unit area. Finally, after the inspection is completed, the food is pushed from the inlet and outlet to the conveyor belt of the conveyor through the horizontal pushing structure to complete a food surface microbial inspection.

[0010] The present invention is further configured such that a pushing shell with an open lower end is provided above the conveyor at the inlet and outlet, and the horizontal pushing structure includes two vertical belts relatively arranged on both sides of the pushing shell, and each vertical belt passes through the inlet and outlet and extends into the detection shell, and the two vertical belts are cooperatively connected with two pushing pieces arranged at equal intervals, and a rotating shaft extending into one end of the two vertical belts is rotatably connected in the pushing shell, and a rotating shaft extending into the other end of the two vertical belts is rotatably connected in the detection shell, and a pushing motor for driving the corresponding rotating shaft to rotate is installed outside the detection shell.

[0011] The present invention is further configured such that each rotating shaft is a gear shaft, and each vertical belt is a rack transmission belt meshing with the gear shaft.

[0012] The present invention is further configured such that an intelligent detection camera facing the conveyor belt of the conveyor is installed on one side of the pusher shell.

[0013] The present invention is further configured such that a rotating hole is opened in the middle of the detection platform, a turntable is rotatably connected in the rotating hole, and a rotating motor for driving the turntable to rotate is installed at the bottom of the detection shell.

[0014] The present invention is further configured such that a limit shaft is laterally arranged on the top of the detection shell, and the mounting shell is provided with a limit hole slidably connected to the limit shaft.

[0015] The present invention is further configured such that a threaded connection sleeve is provided on one side of the vertical sliding shaft along its height direction, and the power output shaft of the telescopic drive motor is downwardly connected to a vertical threaded drive shaft threadedly connected to the threaded connection sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] First, the present invention uses a conveyor and an ultra-macro camera in a detection shell to automatically feed food into the detection shell one by one for surface microbial detection. After the detection, the food is automatically sent out to the conveyor belt of the conveyor. This continuous, rapid, and automated surface microbial detection has high detection efficiency and helps to timely discover potential health and safety hazards.

[0018] Secondly, when conducting food surface microbial detection, the present invention can realize the position movement of the ultra-macro camera according to the position of the food through the cooperation of the lateral displacement motor and the horizontal pushing structure, and the ultra-macro camera is driven up and down by the telescopic drive motor to finally realize ultra-macro photography of the food surface at the optimal position;

[0019] Third, when using an ultra-macro camera to take ultra-macro photos of the food surface, the motor drives the turntable to rotate the food 360°. The rotation exposes the microorganisms more fully to the ultra-macro camera, making it easier for the AI ​​system to compare and identify the types and quantities of microorganisms on the food surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Mainly used to display the control panel on the detection shell;

[0022] Figure 3 It is a partial cross-sectional view used to show the internal structure of the detection shell and the push shell;

[0023] Figure 4It is a partial cross-sectional view used to show the internal structure of the installation shell.

[0024] Among them, 1. Conveyor; 2. Conveying motor; 3. Inspection shell; 4. Import and export; 5. Inspection table; 6. Turntable; 7. Rotating motor; 8. Pushing shell; 9. Vertical belt; 10. Pushing piece; 11. Rotating shaft; 12. Pushing motor; 13. Horizontal threaded drive shaft; 14. Horizontal displacement motor; 15. Limiting shaft; 16. Mounting shell; 17. Horizontal threaded hole; 18. Limiting hole; 19. Telescopic sliding hole; 20. Vertical sliding shaft; 21. Telescopic drive motor; 22. Threaded connecting sleeve; 23. Vertical threaded drive shaft; 24. Ultra-macro camera; 25. LED fill light; 26. Laser distance sensor; 27. Intelligent detection camera; 28. Control panel; 29. ​​Display screen; 30. Control buttons. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the intelligent visual detection system for food surface microorganisms proposed by the present invention, in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are all in a very simplified form and are not to exact scale, and are only used to facilitate and clearly illustrate the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar components.

[0026] Example, see Figure 1-4 , a food surface microorganism intelligent visual detection system, including a conveyor 1, a conveyor motor 2 for driving the conveyor belt is installed on the conveyor 1, a detection shell 3 is upwardly arranged on one side of the conveyor 1, and the detection shell 3 is provided with an inlet and outlet 4 on the side facing the conveyor 1, and a detection platform 5 with the same height as the conveyor belt of the conveyor 1 is provided at the bottom of the detection shell 3, a rotating hole (omitted in the figure) is provided in the middle of the detection platform 5, a turntable 6 is rotatably connected in the rotating hole, and a rotating motor 7 for driving the turntable 6 to rotate is installed at the bottom of the detection shell 3. The turntable 6 can drive the food to rotate 360°, so as to realize three-dimensional shooting and observation of microorganisms on the surface of the food.

[0027] A horizontal pushing structure is provided above the conveyor 1, which can drive materials in and out of the inlet and outlet 4. A pushing shell 8 with an open lower end is provided above the conveyor 1 at the inlet and outlet 4. The horizontal pushing structure includes two vertical belts 9 relatively arranged on both sides of the pushing shell 8. Each vertical belt 9 passes through the inlet and outlet 4 and extends into the detection shell 3. The two vertical belts 9 are cooperated and connected with two pushing pieces 10 set at equal intervals. A rotating shaft 11 extending into the interior of one end of the two vertical belts 9 is rotatably connected in the pushing shell 8, and a rotating shaft 11 extending into the interior of the other end of the two vertical belts 9 is rotatably connected in the detection shell 3. A pushing motor 12 for driving the corresponding rotating shaft 11 to rotate is installed outside the detection shell 3. Each rotating shaft 11 is a gear shaft, and each vertical belt 9 is a rack drive belt meshing with the gear shaft. The pushing piece 10 is driven to move by the vertical belt 9, and the food movement can be pushed through the pushing piece 10.

[0028] The top of the detection housing 3 is rotatably connected to a transversely arranged transverse threaded drive shaft 13. The detection housing 3 is equipped with a transverse displacement motor 14 for driving the rotation of the transverse threaded drive shaft 13. Two limit shafts 15 are transversely arranged at the top of the detection housing 3. The upper end of the detection housing 3 is slidably connected to a mounting housing 16. A transverse threaded hole 17 is formed through the mounting housing 16 and is threadedly connected to the transverse threaded drive shaft 13. The mounting housing 16 is provided with two limit holes 18 that are slidably connected to the limit shaft 15. A telescopic sliding hole 19 is formed upward at the lower end of the mounting housing 16. A vertical sliding shaft 20 is slidably connected to the telescopic sliding hole 19. A telescopic drive motor 21 is installed in the mounting housing 16 for driving the vertical sliding shaft 20 to slide up and down. A threaded connection sleeve 22 is provided on one side of the vertical sliding shaft 20 along its height. The power output shaft of the telescopic drive motor 21 is downwardly connected to a vertical threaded drive shaft 23 that is threadedly connected to the threaded connection sleeve 22.

[0029] A downward-facing ultra-macro camera 24 is mounted at the lower end of the vertical slide 20. Multiple LED fill lights 25 are also mounted on the outer periphery of the ultra-macro camera 24. A laser distance sensor 26 is mounted downwardly on the outer side of the vertical slide 20 for determining the distance between the ultra-macro camera 24 and the food. An intelligent detection camera 27 facing the conveyor belt of the conveyor 1 is mounted on one side of the pusher housing 8 for determining the position of the food on the conveyor 1. A control panel 28 is mounted on one side of the detection housing 3. The control panel 28 houses an integrated control module. A display screen 29 and multiple control buttons 30 are mounted on the outer side of the control panel 28. The control panel 28 can be connected to the Signal AI colony automatic analysis system, which uses AI to automatically identify and determine the number and type of microorganisms per unit area on the food surface.

[0030] Working principle: When conducting batch detection of food surface microorganisms, the food is placed one by one on the conveyor belt of the conveyor 1. The conveyor 1 drives the food to move toward the detection shell 3. The position of the food is intelligently identified and determined by the intelligent detection camera 27. When the food enters the bottom of the pushing shell 8, the pushing motor 12 starts to drive the vertical belt 9 to move, so that the pushing piece 10 pushes the food from the inlet and outlet 4 to the turntable 6 in the detection shell 3. According to the position of the food, the horizontal displacement motor 14 drives the threaded drive shaft to rotate, so that the ultra-macro camera 24 moves to the top of the food, and the laser distance sensor 26 determines the distance between the ultra-macro camera 24 and the food. According to the detected distance, the telescopic drive The motor 21 drives the ultra-macro camera 24 to move downward to a suitable position, and then the ultra-macro camera 24 can be used to take ultra-macro photos of the food surface to identify the microorganisms on the food surface. During the process, the motor 7 drives the turntable 6 to rotate the food 360°. The rotation exposes the microorganisms more fully to the ultra-macro camera 24, so that after the ultra-macro camera 24 takes the photo, the AI ​​system can more accurately and fully identify the types and quantities of microorganisms on the food surface per unit area. Finally, after the detection is completed, the pushing motor 12 starts again to drive the vertical belt 9 to move in the opposite direction, so that the pushing piece 10 pushes the food from the inlet and outlet 4 to the conveyor belt of the conveyor 1, completing a food surface microorganism detection.

[0031] It should also be noted that all “disposed” and similar descriptive words in this application (especially in the specification) express that there is or exists a connection relationship between two structures, but the specific means by which the two are connected are not too limited, and are generally conventional connection means, that is, it should be understood that the means are prior art and do not need to be elaborated on. For example, “n is disposed on m” simply expresses that structure n is present on structure m, and the two are specifically connected by welding, riveting, adhesive bonding or integral molding, which are all within the scope of protection of this application; for another example, “y is rotatably disposed on x” simply expresses that y and x can rotate relative to each other, and whether the two are connected by bearings, or y directly passes through x and is connected to x by rotation, or other feasible methods, are all within the scope of protection of this application.

[0032] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An intelligent visual detection system for food surface microorganisms, comprising a conveyor (1), wherein a conveyor motor (2) is installed on the conveyor (1) for driving the conveyor belt thereof, and wherein: A detection shell (3) is provided on one side of the conveyor (1) and is upwardly provided with an inlet and outlet (4) on the side of the detection shell (3) facing the conveyor (1); a detection platform (5) having the same height as the conveyor belt of the conveyor (1) is provided at the bottom of the detection shell (3); and a horizontal pushing structure capable of driving materials to enter and exit from the inlet and outlet (4) is provided above the conveyor (1); The top of the detection shell (3) is rotatably connected to a transversely arranged transverse threaded drive shaft (13), and the detection shell (3) is equipped with a transverse displacement motor (14) for driving the transverse threaded drive shaft (13) to rotate. The upper end of the detection shell (3) is slidably connected to a mounting shell (16), and a transverse threaded hole (17) threadedly connected to the transverse threaded drive shaft (13) is provided through the mounting shell (16). A telescopic sliding hole (19) is upwardly provided at the lower end of the mounting shell (16), and the telescopic sliding hole (19) is slidably connected to a vertical sliding shaft (20). A telescopic driving motor (21) for driving the vertical sliding shaft (20) to slide up and down is installed in the mounting shell (16); A downwardly disposed super-macro camera (24) is installed at the lower end of the vertical sliding shaft (20); an LED fill light (25) is provided at the lower end of the vertical sliding shaft (20) on the periphery of the super-macro camera (24); a laser distance sensor (26) is provided downwardly on the outer side of the vertical sliding shaft (20); a control panel (28) is provided on one side of the detection shell (3); an integrated control module is provided in the control panel (28); and a display screen (29) and a plurality of control buttons (30) are provided on the outer side of the control panel (28).

2. The intelligent visual detection system for food surface microorganisms according to claim 1, characterized in that: A push shell (8) with an open lower end is provided above the conveyor (1) at the inlet and outlet (4), and the horizontal push structure includes two vertical belts (9) arranged on both sides of the push shell (8) opposite to each other, and each vertical belt (9) passes through the inlet and outlet (4) and extends into the detection shell (3). The two vertical belts (9) are connected with two push pieces (10) arranged at equal intervals. A rotating shaft (11) extending into one end of the two vertical belts (9) is rotatably connected in the push shell (8), and a rotating shaft (11) extending into the other end of the two vertical belts (9) is rotatably connected in the detection shell (3). A push motor (12) for driving the corresponding rotating shaft (11) to rotate is installed outside the detection shell (3).

3. The intelligent visual detection system for food surface microorganisms according to claim 2, characterized in that: Each rotating shaft (11) is a gear shaft, and each vertical belt (9) is a rack transmission belt meshing with the gear shaft.

4. The intelligent visual detection system for food surface microorganisms according to claim 2, characterized in that: An intelligent detection camera (27) facing the conveyor belt of the conveyor (1) is installed on one side of the pushing shell (8).

5. The intelligent visual detection system for food surface microorganisms according to claim 1, characterized in that: A rotating hole is provided in the middle of the detection platform (5), a rotating disk (6) is rotatably connected in the rotating hole, and a rotating motor (7) for driving the rotating disk (6) to rotate is installed at the bottom of the detection shell (3).

6. The intelligent visual detection system for food surface microorganisms according to claim 1, characterized in that: A limit shaft (15) is laterally arranged at the top of the detection shell (3), and a limit hole (18) is provided in the installation shell (16) for sliding connection with the limit shaft (15).

7. The intelligent visual detection system for food surface microorganisms according to claim 1, characterized in that: A threaded connection sleeve (22) is provided on one side of the vertical sliding shaft (20) along its height direction, and a power output shaft of the telescopic drive motor (21) is downwardly connected to a vertical threaded drive shaft (23) threadedly connected to the threaded connection sleeve (22).

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