KR102259123B1 - Vision inspection apparatus and method for controlling thereof - Google Patents

Abstract

The present invention relates to a vision inspection apparatus and a control method thereof. According to the present invention, the vision inspection apparatus for detecting the information on impurities mixed with wet solid materials comprises: a flow path unit in which, on one surface thereof, a mixture of liquid and the solid materials flows; one or more photographing units which photograph the flowing mixture on the sides of the flow path unit, and acquire image information; and a control unit which controls the one or more photographing units. The one surface of the flow path unit allows the light to penetrate through at least a part thereof. At least a part of the one or more photographing units uses the penetrating light and acquires at least a part of the image information. The flow path unit includes a penetration window through which the light penetrates with one surface forming at least a part of the one surface of the flow path unit. The one surface of the flow path unit forms an inclination with resepect to a floor surface of the space where the flow path unit is installed. The one or more photographing units can include: a first photographing unit which photographs the mixture through the penetration window; and a second photographing unit which is installed to face the first photographing unit with the flow path unit in between, and which photographs the mixture without penetrating the penetration window.

Description

Vision inspection apparatus and method for controlling the same

The present invention relates to a vision inspection apparatus and a method for controlling the same.

A vision inspection technique that acquires an image of an object using a camera or the like and detects abnormality or contamination information through analysis is being used in industries and the like.

In recent years, as environmental pollution has increased and people's awareness of product quality and health has increased, interest in inspection techniques for solid substances such as processed foods and raw materials of food materials is increasing.

In the current processing process of raw materials, it is common for people to directly select foreign substances (impurities).

The vision inspection technique is a non-destructive inspection technique, and when used for inspection of food materials, it may be considered because it does not affect the composition of the material.

However, due to the nature of the process for handling the original material, there may be difficulties in performing vision inspection while the original material is packaged, as costs increase and issues of simplification of the process occur.

In addition, if the original material, which is the object for inspection, etc., is wet due to washing, etc., it is often agglomerated during the movement process, so impurities may be hidden or buried in the bottom (back side) of the original material or in the original material can experience

The present invention has been devised in response to the above needs, and an object of the present invention is to provide a structure of a vision inspection apparatus capable of effectively detecting information on impurities mixed in a wet solid and a method for controlling the same.

Another object of the present invention is to provide a structure of a vision inspection apparatus capable of more accurate detection and a method for controlling the same by spreading the wet solid material more easily for inspection.

Another object of the present invention is to provide a structure of a vision inspection apparatus capable of minimizing human intervention while simplifying a process and a method for controlling the same.

A vision inspection device for detecting information on impurities mixed in a wet solid material of the present invention for solving the above technical problem includes: a flow path part through which a mixture of liquid and the solid material flows on one surface; at least one photographing unit for obtaining image information by photographing the flowing mixture from a side of the flow passage; and a control unit for controlling the at least one photographing unit, wherein at least a portion of the one surface of the flow path part transmits light, and at least a portion of the at least one photographing unit uses the transmitted light At least a portion of the image information is obtained, and the flow path part includes a transmission window having one surface forming the at least part of the one surface of the flow path part and transmitting the light, and the one surface of the flow path part is a space in which the flow path part is installed. A first photographing unit inclined with respect to the bottom surface, the at least one photographing unit photographing the mixture through the transmission window; and a second photographing unit installed to face the first photographing unit and the flow path portion interposed therebetween to photograph the mixture without passing through the transmission window.

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In addition, the one surface of the flow passage may be configured to have a steeper inclination in a section before the flowing mixture passes through the transmission window.

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In addition, an upper portion of the flow passage facing the second photographing unit may be opened.

The flow path portion may be provided in a shape in which a width is narrowed toward the bottom surface.

And it may further include a pre-processing unit for generating the mixture by mixing the liquid and the solid.

And the pre-processing unit, a transfer unit for transferring the solid material toward the one surface of the flow passage; and a discharging unit discharging the liquid and inputting the liquid into the one surface of the flow path unit.

And the transfer unit includes a conveyor in which the solid material falls from the end, the end of the conveyor is located higher than the upper end of the flow path with respect to the bottom surface, and the discharge unit, the dropped solid material is the flow path It may be installed to meet the injected liquid before contacting the one surface of the part.

In addition, the conveyor is installed inclined with respect to the bottom surface so as to rise toward the end, it is possible to apply vibration to the transferred solid material.

In addition, the discharge port for discharging the liquid of the discharge unit may be located lower than the end of the conveyor with respect to the bottom surface.

And the control unit detects the information of the impurity based on the photographed image information, determines whether the solid material passes or fails based on the information of the detected impurity, and at the lower end of the flow path part, of the control unit A separate discharge unit may be formed for separating and discharging those that are pass and fail among the solids according to control.

In addition, the solid may be algae (藻類).

In the method for controlling a vision inspection apparatus including a flow path unit, at least one photographing unit, a separate discharge unit and a control unit of the present invention for solving the above technical problem, the control unit is located on one surface of the flow path part from the side of the flow path part controlling the photographing unit to acquire image information by photographing a flowing, liquid and a mixture of the solid; and detecting information on impurities mixed in the solid material based on the photographed image information; and determining whether the solid material is pass or fail based on the detected impurity information, wherein at least a part of the one surface of the flow path part transmits light, and in the step of controlling the photographing unit , at least a portion of the at least one photographing unit acquires at least a portion of the image information by using the transmitted light, and the flow path part has one surface forming the at least part of the one surface of the flow path part, and the light transmits and a transmission window, wherein the one surface of the flow passage part is inclined with respect to a bottom surface of a space in which the flow passage part is installed, and the at least one photographing unit includes: a first photographing unit photographing the mixture through the transmission window; and a second photographing unit installed to face the first photographing unit and the flow path part interposed therebetween and photographing the mixture without passing through the transmission window, wherein the flow path part includes an upper portion facing the first photographing unit can be opened.

And further comprising the step of controlling the separate discharge unit to separate and discharge the pass and fail among the solids, the separate discharge unit may be formed at the lower end of the flow path.

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And it may further include a pre-treatment step of mixing the liquid and the solid to generate the mixture and flow on the one surface of the flow passage.

In addition, the vision inspection apparatus further includes a conveying unit and a discharging unit, and the pre-processing may include: controlling the conveying unit to convey the solid material toward the one surface of the flow path unit; and controlling the discharge unit to discharge the liquid and inject the liquid into the one surface of the flow path unit.

The conveying unit includes a conveyor in which the solid material falls from an end, the end of the conveyor is located higher than the upper end of the flow path with respect to the bottom surface, and the discharge unit includes the dropped solid material in the flow path portion It is installed to meet the injected liquid before contacting the one surface, and the solid may be algae.

And a computer program for executing the control method of the vision inspection apparatus may be stored in a computer-readable recording medium.

And the computer program for executing the control method of the vision inspection device may be distributed by the server.

According to the above-described various embodiments of the present invention, information on impurities mixed in wet solids can be effectively detected using the vision inspection apparatus and the control method thereof.

In addition, according to various embodiments of the present invention described above, more accurate detection is possible by moving the wet solid material more easily and spreading it to be suitable for vision inspection.

In addition, according to various embodiments of the present invention described above, it is possible to reduce the cost for the inspection by simplifying the inspection process and minimizing the intervention of manpower.

1 is a block diagram illustrating a structure of a vision inspection apparatus according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a structure of a vision inspection apparatus according to an embodiment of the present invention.
3 is a cross-sectional view illustrating a part of a structure of a vision inspection apparatus and a flow of a mixture according to an embodiment of the present invention.
4 is a plan view (a) and a perspective view (b) illustrating a structure of a vision inspection apparatus according to an embodiment of the present invention.
5 is a plan view illustrating a shape of a flow path part according to an embodiment of the present invention.
6 is a cross-sectional view (a) and a perspective view (b) illustrating a structure including a pre-processing unit of the vision inspection apparatus according to an embodiment of the present invention.
7 is a perspective view illustrating a partial structure of a vision inspection apparatus according to an embodiment of the present invention.
8 is a flowchart illustrating a method for controlling a vision inspection apparatus according to an embodiment of the present invention.
9 is a flowchart illustrating a method for controlling a vision inspection apparatus according to an embodiment of the present invention.

The following content merely exemplifies the principles of the present invention. Therefore, those skilled in the art can implement the principles of the present invention and invent various devices included in the concept and scope of the present invention, although not clearly described or illustrated herein. In addition, all conditional terms and examples listed in this specification are, in principle, clearly intended only for the purpose of understanding the concept of the present invention, and should be understood as not limiting to the embodiments and states specifically listed as described above. do.

In addition, it is to be understood that all detailed descriptions listing specific embodiments as well as principles, aspects and embodiments of the present invention are intended to include structural and functional equivalents of these matters. It should also be understood that these equivalents include not only currently known equivalents, but also equivalents to be developed in the future, that is, all devices invented to perform the same function regardless of the structure.

Thus, for example, the block diagrams herein are to be understood as representing a conceptual perspective of exemplary circuits embodying the principles of the invention. Similarly, all flowcharts, state transition diagrams, pseudocodes, etc. are understood to represent the various processes performed by a computer or processor, whether or not the computer or processor is clearly depicted and that can be represented substantially in a computer-readable medium. It should be.

The functions of the various elements shown in the drawings, including a processor or functional block represented by a similar concept, may be provided by the use of dedicated hardware as well as hardware having the ability to execute software in association with appropriate software. When provided by a processor, the function may be provided by a single dedicated processor, a single shared processor, or a plurality of individual processors, some of which may be shared.

In addition, the explicit use of terms presented as processor, control, or similar concepts should not be interpreted exclusively by quoting hardware capable of executing software, and without limitation, digital signal processor (DSP) hardware, ROM for storing software. It should be understood to implicitly include (ROM), RAM (RAM) and non-volatile memory. Other commonly used hardware may also be included.

In the claims of the present specification, components expressed as means for performing the functions described in the detailed description include all types of software including, for example, combinations of circuit elements or firmware/microcodes that perform the above functions. It is intended to include all methods of performing a function to perform the function, and is combined with suitable circuitry for executing the software to perform the function. Since the invention defined by these claims is combined with the functions provided by the various enumerated means and combined with the manner required by the claims, any means capable of providing the above functions are equivalent to those conceived from this specification. It should be understood as.

The above-described objects, features, and advantages will become more apparent through the following detailed description in connection with the accompanying drawings, whereby those of ordinary skill in the technical field to which the present invention pertains can easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a structure of a vision inspection apparatus according to an embodiment of the present invention.

As shown in FIG. 1 , the vision inspection apparatus 100 of the present invention may include a flow path unit 2000 , an information acquisition unit 3000 , and a control unit 7000 .

In addition, according to an embodiment, a pre-processing unit 1000 and/or a separate discharge unit 4000 may be further included.

The vision inspection apparatus 1000 according to an embodiment of the present invention may include the above configuration and detect information on the impurity 8300 mixed in the wet solid 8200.

The wet solid may be foods such as vegetables, algae, and fish. However, the present invention is not limited thereto, and if it is a solid material in a state in which information on components or impurities 8300 can be analyzed by a method such as vision inspection while floating together in a state mixed with various types of water, the device 100 and its The application of control methods may be possible.

According to an embodiment of the present invention, the solid material 8200 may be seaweed. More specifically, it may be a sand-shaped algae. More specifically, it may be Maesengyi.

2 is a cross-sectional view illustrating a structure of a vision inspection apparatus according to an embodiment of the present invention. Also, FIG. 3 is a cross-sectional view illustrating a part of the structure of a vision inspection apparatus and a flow of a mixture according to an embodiment of the present invention.

As shown in FIG. 3 , a mixture 8000 of a liquid 8100 and the solid material 8200 may flow on one surface 2900 of the flow passage 2000 . That is, the one surface 2900 has a configuration in which the mixture 8000 can flow in a state of being in close contact.

It is preferable that the liquid 8100 is capable of transmitting light and has a viscosity that is suitable for flowing in close contact with the one surface 2900 of the flow path part 2000.

The liquid 8100 may be seawater or fresh water. Preferably, when the solid material 8200 is seaweed, it is preferable that it is seawater.

The impurity 8300 may be an artificial material such as plastic or a natural material such as sand.

The impurity 8300 may be a microplastic.

Preferably, a downward gradient is formed in the flow path part 2000 toward the ground (or the bottom surface of the space in which the flow path part 2000 is installed), and accordingly, the mixture 8000 flows down the one surface 2900. It is preferable to be configured to be.

The solid material 8200 may be swept down in a state in which at least a part of the solid material 8200 is floated in the liquid 8100 in the mixture 8000 by buoyancy. Accordingly, the frictional force with the one surface 2900 is lowered, and it easily flows downward due to gravity.

According to an embodiment of the present invention, the one surface 2900 may be configured to include a surface positioned below the mixture 8000 while flowing.

According to an embodiment of the present invention, the one surface 2900 may be configured to include a surface positioned at a side of the mixture 8000 while flowing.

According to an embodiment of the present invention, the information acquisition unit 3000 may include at least one photographing unit 3100 , 3200 .

The photographing units 3100 and 3200 may be configured to generate image information of the object by receiving light reflected from the surface of the object or transmitted through the object.

According to an embodiment of the present invention, the light may be visible light. In the case of using visible light, there is an advantage in that image information having higher resolution can be obtained at a lower cost than X-rays or other types of rays. However, there is also a disadvantage in that it is difficult to check the state of impurities 8300 or defects placed on the rear surface of the object to be photographed.

According to an embodiment of the present invention, the photographing units 3100 and 3200 may include a surface inspector of a non-destructive optical inspection method such as line scanning.

Such a line scan type surface inspector acquires an image by scanning the light source and the light irradiated from the light source and reflected from one surface of the object to be inspected through an image sensor in which pixels are arranged in a row, and analyzes the image to obtain an image. ) Is detected.

For this purpose, it is preferable that the light source is formed in an elongated straight line shape such as a rod shape to intensively illuminate the area to be photographed on the surface of the test subject.

According to an embodiment of the present invention, the photographing units 3100 and 3200 may include a 2D or 3D optical camera.

According to an embodiment of the present invention, the photographing units 3100 and 3200 may include an image sensor, a scanner, or a camera that acquires a color image.

According to an embodiment of the present invention, the photographing units 3100 and 3200 may be GigE color cameras.

It is possible to more easily distinguish between the solid material 8200 and the impurity 8300 by using the color information included in the obtained color image.

According to an embodiment of the present invention, the photographing units 3100 and 3200 include an image sensor (not shown) for generating an electrical signal including the image information by receiving light transmitted through or reflected from the object. can do.

As shown in FIGS. 2A and 3 , the at least one photographing unit 3100 , 3200 may acquire image information by photographing the flowing mixture 8000 from the side of the flow path 2000 .

The lateral direction may mean a longitudinal direction of the flow path part 2000, that is, a direction perpendicular to a flow direction of the mixture 8000.

More preferably, a normal direction perpendicular to the liquid level of the liquid 8200 or the surface of the transmission window 2100 may be a center direction of light reception of the photographing units 3100 and 3200.

As shown in FIG. 3 , the information obtaining unit 3000 may include a light source for irradiating light to the object, that is, at least one lighting unit 3150 and 3250 . The center line of light irradiated from the light source 3150 may be obliquely inclined to the liquid level of the liquid 8200 or the surface of the transmission window 2100 as shown in FIG. 3.

Preferably, the center line of the light may be installed to maintain a predetermined angle with the liquid level so that the light reflected on the liquid level or the surface of the transmission window 2100 does not interfere with the image information acquisition function of the photographing units 3100 and 3200. .

The control unit 700 may control the at least one photographing unit 3100 , 3200 .

At least a portion of the one surface 2900 of the flow passage 2000 may be provided so that light 3900 passes therethrough.

More preferably, a transmission window 2100 is formed on the one surface 2900 so that the light 3900 is transmitted.

As shown in FIG. 3 , at least a portion of the at least one photographing unit 3100 and 3200 may acquire at least a portion of the image information using the transmitted light 3900 .

The flow path part 2000 may include a transmission window 2100 having one surface forming at least a part of the one surface 2900 of the flow path part 2000 and transmitting the light 3900 .

The transmission window 2100 is preferably formed of a material having excellent light transmittance of a predetermined value or more, such as glass or acrylic, and having durability.

As shown in FIGS. 2A and 3 , the one surface 2900 of the flow path part 2000 may be inclined with respect to the bottom surface 9000 of the space in which the flow path part 2000 is installed. By forming an inclination (gradient) in this way, the impurities 8300 can be inspected while flowing naturally without using another power source.

As shown in Figs. 2 (a) to (c), the one surface 2900 of the flow passage 2000 according to an embodiment of the present invention, the flowing mixture 8000 is the transmission window 2100 The slope may be configured to be steeper in the section 'A' before passing through.

According to the embodiment, the upper end of this steeper inclined structure, that is, the side to which the mixture 8000 is input, partially blocks the lower portion of the flow of the input mixture 8000 as shown in FIGS. 2 (b) and (c). It may be formed in a 'step difference' structure.

As described above, by using a configuration with a step and a slope, the generation of bubbles in the entering liquid 8100 or mixture 8200 is suppressed, the flow state of the liquid 8100 is stabilized, and impurities 8300 in the photographing unit 3100 are suppressed. ), it is possible to prevent deterioration of the detection performance.

4 is a plan view (a) and a perspective view (b) illustrating a structure of a vision inspection apparatus according to an embodiment of the present invention.

As shown in (a) and (b) of FIG. 4 , a plurality of flow passages 2000 may be provided in parallel. Preferably, a plurality of pairs formed by the flow path part 2000 and the at least one photographing part 3100 and 3200 may be provided in parallel.

The mixture 8000 may be branched and introduced into each of the plurality of flow paths 2000.

Preferably, the mixture 8000 may be divided and injected into each of the plurality of flow passages 2000 after a pretreatment operation of removing foreign substances or air bubbles that obstruct the vision inspection is performed.

As shown in FIGS. 2 (a), (b) and 3 , the at least one photographing unit 3100 and 3200 may include a first photographing unit 3100 and a second photographing unit 3200 . .

The first and second photographing units 3100 and 3200 may be installed to face each other (to face each other).

By configuring so as to face each other in this way, it is possible to acquire image information by photographing all of the impurities 8300 located on one side of the solid material 8200 and the opposite side.

Through such a configuration, it is possible to obtain high-resolution image information by photographing visible light so that more accurate reading of the impurity 8300 is possible, and cost reduction may be achieved by excluding expensive components such as X-rays.

The first photographing part 3100 and the second photographing part 3200 may be installed to face each other (to face each other) with the flow path part 2000 interposed therebetween.

The first photographing unit 3100 may be installed to photograph the mixture 8000 through the transmission window 2100. That is, the transmission window 2900 may be placed between the flowing mixture 8000 and the flowing mixture 8000.

The second photographing unit 3200 may be installed to photograph the mixture 8000 without passing through the transmission window 2100.

As shown in FIG. 4B , the flow path part 2000 may have an upper portion facing the second photographing part 3200 open.

5 is a plan view illustrating a shape of a flow path part according to an embodiment of the present invention.

As shown in FIG. 5 , at least a portion of the flow path part 2000 may be provided in a shape in which the width is narrowed toward the bottom surface 9000 .

According to an embodiment of the present invention, the flow path part 2000 may be provided in a shape whose width becomes narrow toward the bottom surface 9000 as a whole.

As described above, by configuring the width of the flow path part 2000 to narrow according to the direction toward the lower end, there is an effect of increasing the pressure toward the lower end of the flow path part 2000. Accordingly, a sufficient pressure and flow rate of the flowing liquid 8100 is maintained so that the separation and discharge operation can be performed smoothly in the separation and discharge unit 4000 to be described later.

In addition, the configuration of the narrower width toward the bottom as described above reduces the occurrence of bubbles in the liquid 8100 or the residual phenomenon in the flow path part 2000 of the solid material 8100, thereby hindering the information acquisition function of the information acquisition unit 3000. To prevent and maintain hygiene.

6 is a cross-sectional view (a) and a perspective view (b) illustrating a structure including a pre-processing unit of the vision inspection apparatus according to an embodiment of the present invention.

As shown in (a) and (b) of Figure 6, the vision inspection apparatus 100 according to an embodiment of the present invention, the mixture 8000 by mixing the liquid 8100 and the solid material 8200 ) may further include a pre-processing unit 1000 for generating.

The pre-processing unit 1000 according to an embodiment of the present invention may include a transfer unit 1800 for transferring the solid material 8200 and a discharge unit 1900 for discharging the liquid 8100 .

The transfer unit 1800 may transfer the solid material 8200 toward the one surface 2900 of the flow path unit 2000 .

The solid material 8200 may be in a wet state.

The discharge unit 1900 may discharge the liquid 8100 and inject the liquid 8100 into the one surface 2900 of the flow path unit 2000 .

The transfer unit 1800 may include a conveyor 1810 from which the solid material 8200 falls from an end.

The end of the conveyor 1810 may be positioned higher than the upper end of the flow path with respect to the bottom surface 9000 .

The discharge unit 1900 may be installed to meet the injected liquid 8100 before the dropped solid material 8200 comes into contact with the one surface 2900 of the flow path unit 2000 .

By configuring and installing the inputted liquid 8100 to contact first, it is possible to prevent the solids 8200 from sticking to the one surface 2900 of the flow passage 2000 and to flow smoothly.

The conveyor 1810 may be installed to be inclined with respect to the bottom surface 9000 so as to rise toward the end.

In this way, by configuring the height of the solid material to gradually increase as the transfer proceeds, there is an effect that the solid material 8200 is spread without being agglomerated.

According to an embodiment of the present invention, the inclination in the opposite direction to the inclination of the flow path part 2000 may be achieved.

The conveyor 1810 may apply vibration to the transferred solid 8200 .

Such vibration may also promote the spread of the solid material 8200 without being agglomerated.

By making the solid material 8200 unfold in this way, the information acquisition unit 3000 may more accurately obtain information about the components of the mixture 8000 or the solid material 8200 .

The discharge port for discharging the liquid 8100 of the discharge unit 1900 may be located lower than the end of the conveyor 1810 with respect to the bottom surface 9000 .

The discharge port for discharging the liquid 8100 of the discharge unit 1900 may be located lower than the one surface 2900 of the flow path unit 2000 with respect to the bottom surface 9000 .

In this way, the discharge port of the discharge unit 1900 is formed between the end of the conveyor 1810 and the one surface 2900 of the flow path part 2000, so that the one surface 2900 of the flow path part 2000 is formed. The liquid 8100 may flow first, and the solid 8200 may fall thereon.

According to an embodiment of the present invention, the liquid 8100 is sprayed from the discharge port into the air so that the sprayed liquid 8100 meets the solid material 8200 falling from the end of the transfer unit 1000 in the air.

The controller 7000 may detect information on the impurity 8300 based on the photographed image information.

According to an embodiment of the present invention, the controller 7000 may distinguish the shape of the impurity 83000 included in the image information from other shapes.

The control unit 7000 recognizes the shape of the impurity 83000 included in the image information using the previously stored shape information of the impurity or its characteristic information, and the impurity 8000 in the mixture 8000 or the solid 8200 It can be determined that this is included.

The control unit 7000 may determine whether the solid material 8200 is pass or fail based on the information on the detected impurity 8300 .

According to an embodiment of the present invention, the controller 70000 may determine the specific gravity of the shape of the impurity 83000 included in the image information. Alternatively, the specific gravity in which the impurity 8000 is included in the mixture 8000 or the solid 8200 may be converted and derived based on the previously inputted physical property information.

According to an embodiment of the present invention, the controller 70000 may detect the impurity 8300 or specific gravity information thereof by using an algorithm for analyzing color (color) information included in the image information.

According to an embodiment of the present invention, the control unit 70000 may analyze the specific gravity information using a technique such as a HUE graph or visualize it through a display or an output.

According to an embodiment of the present invention, the information obtained through the application of the automated inspection technique as described above is constructed as big data, so that various uses such as yield, defect rate, defective foreign material management, and inspection management are possible.

7 is a perspective view illustrating a partial structure of a vision inspection apparatus according to an embodiment of the present invention.

As shown in FIG. 7, at the lower end of the flow path part 2000, a separate discharge part 4000 for separating and discharging the pass and the failing ones among the solids 8200 is formed under the control of the controller 7000. can be

The control unit 7000 compartmentalizes the image information of the continuously flowing mixture 8000, and from the image information of the mixture 8000 of a specific compartment, the impurities contained in the mixture 8000 or the solid 8200 corresponding to the corresponding compartment ( 8300), it is possible to determine whether the pass/fail (good/failure) based on predetermined reference information by determining the quantity and/or type.

The separate discharge unit 4000 may include a guide member 4100 that moves in a specific direction. The guide member 4100 moves under the control of the control unit 7000 to move a mixture 8000 or a solid 8200 of a specific section that is a passing product and a mixture 8000 or a solid 8200 of a specific section that is a reject product. It can be separated and discharged.

The separate discharge unit 4000 may include a first discharge tank 4200 for accommodating the discharged mixture 8000 or solid material 8200 of a specific compartment that is the discharged product.

The separate discharge unit 4000 may include a second discharge tank 4300 for accommodating the mixture 8000 or the solid material 8200 of a specific section that is rejected.

The solid 8200 may be algae.

8 is a flowchart illustrating a method for controlling a vision inspection apparatus according to an embodiment of the present invention.

As shown in FIG. 8 , in the control method of the vision inspection apparatus 1000 according to an embodiment of the present invention, the control unit 7000 controls the flow path unit 2000 from the side of the flow path unit 2000 . It may include a step (S200) of controlling the photographing units 3100 and 3200 to obtain image information by photographing a mixture 8000 of the liquid 8100 and the solid 8200 flowing on one surface 2900. .

The control method of the vision inspection apparatus 1000 according to an embodiment of the present invention may include a step (S300) of detecting information on impurities 8300 mixed in the solid material 8200 based on the photographed image information. can

The control method of the vision inspection apparatus 1000 according to an embodiment of the present invention includes a step (S400) of determining whether the solid material 8200 is pass or fail based on information on the detected impurity 8300 . can do.

At least a portion of the one surface 2900 of the flow passage 2000 may transmit light 3900 .

In the step (S200) of controlling the photographing units 3100 and 3200, at least a portion of the at least one photographing unit 3100, 3200 uses the transmitted light 3900 to capture at least a portion of the image information can be obtained

The control method of the vision inspection apparatus 1000 according to an embodiment of the present invention includes the step of controlling the separated and discharging unit 4000 to separate and discharge the pass and fail among the solids 8200 (S500). may include

The separate discharge part 4000 may be formed at the lower end of the flow path part 2000 .

The flow path part 2000 may include a transmission window 2100 having one surface forming at least a part of the one surface 2900 of the flow path part 2000 and transmitting the light 3900 .

The one surface 2900 of the flow passage 2000 may be inclined with respect to the bottom surface 9000 of the space in which the flow passage 2000 is installed.

The at least one photographing unit 3100, 3200 includes a first photographing unit 3100 for photographing the mixture 8000 through the transmission window 2100, and the first photographing unit 3100 and the flow path part ( 2000) may include a second photographing unit 3200 installed to face each other and photographing the mixture 8000 without passing through the transmission window 2100 .

The flow path part 2000 may have an upper portion facing the first photographing part 3100 open.

The flow path part 2000, like a slide, may have a wall formed on the lateral side and the lower part thereof so that the mixture 8000 does not separate. The one surface 2900 may be one surface of the wall.

In the control method of the vision inspection apparatus 1000 according to an embodiment of the present invention, the mixture 8000 is generated by mixing the liquid 8100 and the solid material 8200, and the one surface of the flow path part 2000 is It may further include a pre-processing step (S100) to flow to (2900).

9 is a flowchart illustrating a method for controlling a vision inspection apparatus according to an embodiment of the present invention.

The vision inspection apparatus 1000 may further include a transfer unit 1800 and a discharge unit 1900 .

The pre-processing step (S100) is a step (S110) of controlling the transfer unit 1800 to transfer the solid material 8200 toward the one surface 2900 of the flow path unit 2000 (S110) and discharging the liquid 8100. and controlling the discharge unit 1900 to be injected into the one surface 2900 of the flow path unit 2000 ( S120 ).

The transfer unit 1800 may include a conveyor 1810 from which the solid material 8200 falls from an end.

The end of the conveyor 1810 may be positioned higher than the upper end of the flow path with respect to the bottom surface 9000 .

The discharge unit 1900 may be installed to meet the injected liquid 8100 before the dropped solid material 8200 comes into contact with the one surface 2900 of the flow path unit 2000 .

The control unit 7000 according to an embodiment of the present invention may be a component that performs a data operation function according to a pre-input algorithm. In a specific embodiment, it may be configured to include a microprocessor and a memory. In addition, according to an embodiment, it may be physically connected to other components of the device 100 , and may be configured to transmit and receive data or electrical signals by being connected to a separate place by wire. Alternatively, it may be implemented as a remotely wirelessly connected server.

Meanwhile, the control method according to various embodiments of the present disclosure described above may be implemented as a program code and provided to each server or devices in a state stored in various non-transitory computer readable media.

The non-transitory readable medium refers to a medium that stores data semi-permanently and can be read by a device, rather than a medium that stores data for a short moment, such as a register, a cache, and a memory. Specifically, the above-described various applications or programs may be provided by being stored in a non-transitory readable medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, or the like.

In addition, although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. In addition, various modifications may be possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: vision inspection device
1000: pre-processing unit 1800: transfer unit
1810: conveyor 1900: discharge part
2000: flow path part 2100: transmission window
2900: one side
3000: information acquisition unit 3100: first photographing unit
3150: first lighting unit 3200: second photographing unit
3250: first lighting unit
4000: separate discharge unit 4100: guide member
4200: first discharge tank 4300: second discharge tank
7000: control unit
8000: mixture 8100: liquid
8200: solids 8300: impurities
9000: bottom surface

Claims (22)

A vision inspection device for detecting information on impurities mixed in wet solids,
a flow passage through which a mixture of liquid and the solid flows on one surface;
at least one photographing unit for obtaining image information by photographing the flowing mixture from a side of the flow passage; and
A control unit for controlling the at least one photographing unit,
At least a part of the one surface of the flow path part transmits light,
At least a portion of the at least one photographing unit acquires at least a portion of the image information by using the transmitted light,
The flow path part,
and a transmissive window having one surface forming at least a portion of the one surface of the flow path portion and transmitting the light;
The one surface of the flow path part is inclined with respect to the bottom surface of the space in which the flow path part is installed,
The at least one photographing unit,
a first photographing unit for photographing the mixture through the transmission window; and
and a second photographing unit installed to face the first photographing unit and the flow path portion interposed therebetween and photographing the mixture without passing through the transmission window.
delete delete The method of claim 1,
The one surface of the flow path portion, the vision inspection apparatus, characterized in that the slope is steeper in a section before the flowing mixture passes through the transmission window.
delete The method of claim 1,
The flow path part,
Vision inspection apparatus, characterized in that the upper portion facing the second photographing unit is opened.
The method of claim 6,
The flow path part,
Vision inspection apparatus, characterized in that provided in a shape that is narrowed toward the bottom surface.
The method of claim 4,
The vision inspection apparatus according to claim 1, further comprising a pre-processing unit that mixes the liquid and the solid to generate the mixture.
The method of claim 8,
The pretreatment unit,
a conveying unit for conveying the solid material toward the one surface of the flow path unit; and
and a discharge unit for discharging the liquid and injecting the liquid into the one surface of the flow path unit.
The method of claim 9,
The transfer unit,
Containing a conveyor on which the solid material falls from the end,
The end of the conveyor is located higher than the upper end of the flow path with respect to the bottom surface,
The discharge unit,
Vision inspection apparatus, characterized in that the installed so as to meet the injected liquid before the dropped solids come into contact with the one surface of the flow path part.
The method of claim 10,
The conveyor is
It is installed inclined with respect to the bottom surface so as to rise toward the end,
Vision inspection device, characterized in that the vibration is applied to the transferred solid.
The method of claim 10,
The discharge port for discharging the liquid of the discharge unit is positioned lower than the end of the conveyor with respect to the bottom surface.
The method of claim 1,
The control unit,
Detecting the information of the impurities based on the photographed image information,
Determining whether the solid material is pass or fail based on the information of the detected impurity,
At the lower end of the flow passage,
Vision inspection apparatus, characterized in that the separation and discharge part for separating and discharging the passing and failing among the solids under the control of the control unit is formed.
14. The method of any one of claims 1, 4, 6 to 13, wherein
The vision inspection device, characterized in that the solid is algae (藻類).
A control method of a vision inspection device including a flow path unit, at least one photographing unit, a separate discharge unit, and a control unit, the control method comprising:
The control unit,
controlling the photographing unit to acquire image information by photographing a mixture of liquid and solid, flowing on one surface of the flow passage from the side of the flow passage; and
detecting information on impurities mixed in the solid material based on the photographed image information; and
Comprising the step of determining whether the solid material pass or fail based on the information of the detected impurity,
At least a part of the one surface of the flow path part transmits light,
In the step of controlling the photographing unit,
At least a portion of the at least one photographing unit acquires at least a portion of the image information by using the transmitted light,
The flow path part,
and a transmissive window having one surface forming at least a portion of the one surface of the flow path portion and transmitting the light;
The one surface of the flow path part is inclined with respect to the bottom surface of the space in which the flow path part is installed,
The at least one photographing unit,
a first photographing unit for photographing the mixture through the transmission window; and
and a second photographing unit installed to face the first photographing unit and the flow path portion interposed therebetween and photographing the mixture without passing through the transmission window,
The flow path part,
The control method of the vision inspection apparatus, characterized in that the upper portion facing the first photographing unit is opened.
The method of claim 15,
Further comprising the step of controlling the separate discharge unit to separate and discharge the pass and fail among the solids,
The control method of the vision inspection apparatus, characterized in that the separated discharge portion is formed at the lower end of the flow path.
delete The method of claim 15,
The method of controlling a vision inspection apparatus according to claim 1, further comprising a pre-treatment step of mixing the liquid and the solid to create the mixture and flow it on the one surface of the flow passage.
The method of claim 18,
The vision inspection device further includes a conveying unit and a discharging unit,
The pre-processing step is
controlling the conveying unit to convey the solid material toward the one surface of the flow path unit; and
and controlling the discharge unit to discharge the liquid and inject the liquid into the one surface of the flow path unit.
The method of claim 19,
The transfer unit,
Containing a conveyor on which the solid material falls from the end,
The end of the conveyor is located higher than the upper end of the flow path with respect to the bottom surface of the space where the flow path part is installed,
The discharge unit,
It is installed so that the dropped solid material meets the injected liquid before it comes into contact with the one surface of the flow path part,
The control method of the vision inspection device, characterized in that the solid is algae (藻類).
A computer program stored in a computer-readable recording medium for executing the control method of the vision inspection apparatus according to any one of claims 15, 16, and 18 to 20.
A server for distributing a computer program for executing the control method of the vision inspection device according to any one of claims 15, 16, and 18 to 20.

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