CN111601087A - Visual inspection equipment and processing apparatus of tableware - Google Patents
Visual inspection equipment and processing apparatus of tableware Download PDFInfo
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- CN111601087A CN111601087A CN202010451664.5A CN202010451664A CN111601087A CN 111601087 A CN111601087 A CN 111601087A CN 202010451664 A CN202010451664 A CN 202010451664A CN 111601087 A CN111601087 A CN 111601087A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The application provides a processing apparatus of visual inspection equipment and tableware, and this visual inspection equipment includes: the detection cover body is used for forming a detection cavity for accommodating a detection object, and at least part of the detection cover body is made of opaque materials; the light source equipment is arranged in the detection cavity; the image acquisition equipment is arranged in the detection cavity; image processing equipment, with image acquisition equipment communication connection, image processing equipment is used for handling the image of the detection object that image acquisition equipment gathered, in order to obtain the testing result, install light source equipment in detecting the cavity, light source equipment makes image acquisition equipment acquire the image smoothly for image acquisition equipment provides auxiliary lighting, and because the detection cover body is not totally transparent, make image acquisition equipment be difficult for receiving the influence of the light in the environment, the picture of having guaranteed image acquisition equipment shooting is undistorted, the accuracy of the testing result of visual inspection equipment has further been guaranteed.
Description
Technical Field
The application relates to the field of visual detection, in particular to a visual detection device and a tableware processing device.
Background
In the prior art, most of visual detection equipment is a mode of directly adopting a camera to shoot and contrast, and due to the influence of light rays and the like in the environment, certain errors exist in the shooting effect, so that the detection result is not accurate enough.
The above information disclosed in this background section is only for enhancement of understanding of the background of the technology described herein and, therefore, certain information may be included in the background that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
Disclosure of Invention
The main purpose of this application is to provide a processing apparatus of visual inspection equipment and tableware to solve the problem that visual inspection equipment among the prior art receives the influence of the light in the environment easily and the testing result that leads to is not accurate enough.
In order to achieve the above object, according to one aspect of the present application, there is provided a visual inspection apparatus including: the detection cover body is used for forming a detection cavity for accommodating a detection object, and at least part of the detection cover body is made of opaque materials; the light source equipment is arranged in the detection cavity; the image acquisition equipment is arranged in the detection cavity; and the image processing equipment is in communication connection with the image acquisition equipment and is used for processing the image of the detection object acquired by the image acquisition equipment to obtain a detection result.
Further, the detection cover body further comprises a top plate, and the light source device and the image acquisition device are located on the inner surface of the top plate at intervals.
Further, the light source device comprises a plurality of light sources which are arranged at equal intervals, connecting lines of projections of centers of the plurality of light sources on the inner surface of the top plate form a circle, and the projection of the center of the image acquisition device on the inner surface of the top plate is positioned in the circle.
Further, a projection of the center of the image capturing device on the inner surface of the top plate is located at the center of the circle.
Furthermore, the detection cover body comprises a side plate connected with the top plate, the side plate is provided with a first opening and a second opening which are opposite, the first opening is an inlet of the detection object entering the detection cavity, and the second opening is an outlet of the detection object.
Further, the detection cover body further includes a third opening opposite to the top plate, the third opening communicating the first opening and the second opening.
Further, the cover body is a non-transparent piece.
Further, the visual inspection apparatus further includes: and the display equipment is in communication connection with the image acquisition equipment and the image processing equipment respectively, and is used for displaying the image acquired by the image acquisition equipment, the image processed by the image processing equipment and the detection result.
Further, the visual inspection apparatus further includes: the data storage device is in communication connection with the image processing device and is used for storing a detection result of the detection object; and the controller is in communication connection with the image processing equipment and is used for generating a control signal according to the detection result, wherein the control signal is a signal for processing the detection object which is detected.
According to another aspect of the application, there is provided a treatment device for dishware comprising a visual inspection apparatus, the visual inspection apparatus being any one of the visual inspection apparatuses.
By the aid of the technical scheme, the light source equipment is installed in the detection cavity, the light source equipment provides auxiliary lighting for the image acquisition equipment to enable the image acquisition equipment to acquire images smoothly, and the detection cover body is not completely transparent, so that the image acquisition equipment is not easily affected by light rays in the environment, pictures shot by the image acquisition equipment are not distorted, and accuracy of detection results of the visual detection equipment is further guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 shows a schematic view of a device for handling cutlery according to an embodiment of the application;
FIG. 2 shows a top view of a treatment device for the dishware of FIG. 1 in accordance with an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a portion of a tableware treating apparatus according to an embodiment of the present application;
FIG. 4 is a schematic view of a portion of a device for treating dishes according to an embodiment of the present application; and
fig. 5 shows a partial structural schematic diagram of a visual inspection apparatus according to an embodiment of the present application.
Wherein the figures include the following reference numerals:
10. a visual inspection device; 11. detecting the cover body; 12. a light source device; 13. an image acquisition device; 14. an image processing apparatus; 15. a detection cavity; 110. a top plate; 111. a side plate; 16. a first opening; 17. a second opening; 18. a display device; 19. a third opening; 112. a controller; 20. a storage device; 30. sorting equipment; 40. cleaning equipment; 50. a transfer device; 51. a conveyor belt; 60. a processing platform; 70. a first position detection device; 80. a second position detection device.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Also, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As described in the background art, the prior art visual inspection apparatus is susceptible to the influence of light in the environment, so that the detection result is not accurate enough, and in order to solve the problem that the prior art visual inspection apparatus is susceptible to the influence of light in the environment, so that the detection result is not accurate enough, the present application provides a visual inspection apparatus and a tableware processing apparatus.
An exemplary embodiment of the present application provides a visual inspection apparatus, as shown in fig. 1, 2, 4, and 5, including:
a detection cover 11 for forming a detection cavity 15 for accommodating a detection object, wherein at least part of the detection cover 11 is made of an opaque material;
a light source device 12 located in the detection chamber 15;
an image acquisition device 13 located in the detection chamber 15;
and an image processing device 14 communicatively connected to the image capturing device 13, wherein the image processing device 14 is configured to process the image of the detection object captured by the image capturing device 13 to obtain a detection result.
In the above scheme, install light source equipment in detecting the cavity, light source equipment provides auxiliary lighting for image acquisition equipment and makes image acquisition equipment acquire the image smoothly, and because the detection cover body is not totally transparent, make image acquisition equipment be difficult for receiving the influence of the light in the environment, the picture of having guaranteed image acquisition equipment and shooing is undistorted, the accuracy of visual inspection equipment's testing result has been guaranteed and, this testing equipment is owing to including the cover body, thereby can alleviate or avoid judging the shadow to the filth and alleviate or avoided judging the problem of filth as the shadow, the accuracy of visual inspection equipment's testing result has further been guaranteed.
The environment light transmitted by the part of the detection cover body formed by the transparent material does not affect the shooting of the image acquisition equipment.
It should be noted that the above-mentioned image capturing devices include, but are not limited to, a CCD industrial camera and a CMOS industrial camera, and those skilled in the art can select a suitable image capturing device according to actual situations.
In an embodiment of the present application, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the detecting cover 11 further includes a top plate 110, the light source device 12 and the image capturing device 13 are located on an inner surface of the top plate 110 at intervals, and the light source device 12 and the image capturing device 13 are disposed on the top plate 110, so that the image capturing device 13 can capture an image, and accuracy of a detection result of the visual detecting device 10 is further ensured.
It should be noted that the top plate in the present application is not necessarily a flat plate structure, and may be another uneven plate structure, and those skilled in the art may select a top plate having an appropriate shape according to actual conditions.
In another embodiment of the present application, as shown in fig. 2, 4 and 5, the light source device 12 includes a plurality of light sources arranged at equal intervals, and the connection lines of the projections of the centers of the plurality of light sources on the inner surface of the top plate 110 form a circle, the projection of the center of the image pickup device 13 on the inner surface of the top plate 110 is located within the circle, of course, the connection lines of the projections of the centers of the plurality of light sources on the inner surface of the top plate 110 may also form a triangle, a square, a pentagon, etc., and the plurality of light source devices 12 may be disposed at equal intervals or at unequal intervals, the projection of the center of the image pickup device 13 on the inner surface of the top plate 110 is located within the circle, so that the light source device 12 provides enough illumination light source for the image capturing device 13, which is convenient for the image capturing device 13 to capture images, and further ensures the accuracy of the detection result of the visual detection device 10.
It should be noted that the light source device may also be an annular light source, a triangular light source with a hollow middle portion, a square light source with a hollow middle portion, and the like.
In yet another embodiment of the present application, as shown in fig. 4 and fig. 5, a projection of the center of the image capturing device 13 on the inner surface of the top plate 110 is located at a center of the circle, so that the light source device 12 provides a sufficient illumination light source for the image capturing device 13, which facilitates the image capturing device 13 to capture an image, and further ensures the accuracy of the detection result of the visual detection device 10.
It should be noted that, in the above solution, the image acquisition device acquires an image including tableware, and the image acquisition device includes but is not limited to a CCD industrial camera and a CMOS industrial camera, and those skilled in the art can select a suitable image acquisition device according to actual situations.
In still another embodiment of the present invention, as shown in fig. 1, 2, 4 and 5, the detecting cover 11 includes a side plate 111 connected to the top plate 110, the side plate 111 has a first opening 16 and a second opening 17 opposite to each other, the first opening 16 is an entrance of the detecting object into the detecting cavity 15, the second opening 17 is an exit of the detecting object, specifically, the top plate 110 and the side plate 111 may be divided by an integral structure, specifically, the cover may be a cubic cover, may be a cylindrical cover, may be a hemispherical cover (the top plate 110 and the side plate 111 are divided), may be another irregular cover, for example, the top plate 110 is a part of a sphere, the side plate 111 is the same as the cylindrical side plate 111, the detecting object enters the detecting cavity 15 from the first opening 16 and leaves the detecting object from the second opening 17, the movement of the detection object in the detection cover 11 is realized, so that the streamlined detection of the detection object is realized, and the accuracy of the detection result of the visual detection device 10 is further ensured.
In still another embodiment of the present invention, as shown in fig. 1, 2 and 4, the detecting cover 11 further includes a third opening 19 opposite to the top plate 110, and the third opening 19 communicates the first opening 16 and the second opening 17, in this case, the cover is used to form a detecting cavity 15 with a platform for placing a detecting object, but the cover may not have the third opening, that is, a bottom.
In another embodiment of the present application, the cover body is a non-transparent member, specifically, the opaque material includes but is not limited to alloy, iron, aluminum, opaque plastic, opaque rubber, and the like, and the cover body is a non-transparent member so that light in the external environment cannot irradiate the cover body, and thus the collection of the image by the image collection device is not affected, and the accuracy of the detection result of the visual detection device is further ensured.
In yet another embodiment of the present application, as shown in fig. 4 and fig. 5, the visual inspection apparatus 10 further includes a display apparatus 18, the display apparatus 18 is respectively connected to the image capturing apparatus 13 and the image processing apparatus 14 in a communication manner, and the display apparatus 18 is configured to display the image captured by the image capturing apparatus 13, the image processed by the image processing apparatus 14, and the inspection result, so that relevant people can view the inspection result.
It should be noted that the display devices include, but are not limited to, LED display screens and LCD display screens, and those skilled in the art can select suitable display devices according to actual situations.
In another embodiment of the present application, as shown in fig. 1 and 4, the visual inspection apparatus 10 further includes a data storage device and a controller 112, the data storage device is communicatively connected to the image processing apparatus 14, and the data storage device is configured to store a detection result of the inspection object; the controller 112 is communicatively connected to the image processing device 14, and the controller 112 is configured to generate a control signal according to the detection result, where the control signal is a signal for processing the detection object that has been detected, so as to implement processing of the detection object.
An exemplary embodiment of the present application provides a tableware processing apparatus, as shown in fig. 1 and 4, including a visual inspection device 10, where the visual inspection device 10 is any one of the visual inspection devices 10, the tableware processing apparatus is suitable for large tableware centralized decontamination enterprises, hotels and tableware manufacturing enterprises, can detect tableware defects and stain residues, effectively improve the quality and efficiency of tableware cleanliness detection, reduce labor intensity, and save labor cost, and includes the visual inspection device, where the visual inspection device installs a light source device in an inspection cavity, the light source device provides auxiliary illumination for an image acquisition device so that the image acquisition device can smoothly acquire images, and since an inspection cover body is not completely transparent, the image acquisition device is not easily affected by light in the environment, the picture that has guaranteed image acquisition equipment to shoot is undistorted, and the accuracy of visual inspection equipment's testing result has guaranteed the accuracy of visual inspection equipment's testing result and, this testing equipment is owing to including the cover body to can alleviate or avoid judging the shadow for the filth and alleviate or avoid judging the problem of filth with the shadow, it is better to have further guaranteed the treatment effect of the processing apparatus of tableware.
It should be noted that the tableware includes, but is not limited to, bowls, cups, plates, spoons, and tea dishes.
In still another embodiment of the present application, as shown in fig. 1 and 4, the tableware processing apparatus further includes a storage device 20 and a sorting device 30, and a visual inspection device 10 for inspecting the cleanness of the tableware entering the inspection chamber 15 to determine whether the cleanness of the tableware is acceptable; a storage facility 20 located at one side of the visual inspection facility 10, the storage facility 20 being configured to store the tableware with the qualified cleanliness; the sorting equipment 30 is in communication connection with the visual detection equipment 10, the sorting equipment 30 is used for placing the tableware with qualified cleanliness into the storage equipment 20, the visual detection equipment 10 detects the cleanliness of the tableware, the sorting equipment 30 places the tableware with qualified cleanliness into the storage equipment, automatic detection of the cleanliness of the tableware and automatic sorting of the tableware are achieved, and compared with the scheme that detection of residual stains on the surface of the tableware in the prior art mainly depends on manual visual judgment, and the scheme that the tableware with clean cleaning and stains is sorted manually is adopted, the scheme improves the detection speed of the cleanliness of the tableware and the sorting speed of the tableware.
In another embodiment of the present application, as shown in fig. 1 and 4, the processing apparatus further includes a washing device 40, the washing device 40 is located on a side of the visual inspection device 10 away from the receiving device 20, the washing device 40 is used for washing at least the dishes, and the washing device 40 is used for washing away oil stains, water stains and solid attachments on the surfaces of the dishes, so as to clean the dishes and automatically clean the dishes, speed up the cleaning of the dishes, and further improve the detection speed of the cleanliness of the dishes and the sorting speed of the dishes.
In still another embodiment of the present application, as shown in fig. 1 and 4, the processing apparatus further includes a conveying device 50, the conveying device 50 is connected between an outlet of the washing device 40 and an inlet of the washing device 40, a portion of the visual inspection device 10 is located above the conveying device 50, the conveying device 50 is used for conveying the dishes, the conveying device 50 conveys the washed dishes of the washing device 40 to a detection area of the visual inspection device 10, and the visual inspection device 10 detects the cleanliness of the washed dishes, so that the automatic conveying, washing, cleanliness detection and sorting of the dishes are realized, and the detection speed of the cleanliness of the dishes and the sorting speed of the dishes are improved.
In another embodiment of the present application, as shown in fig. 1, 2 and 4, the above-mentioned conveying device 50 includes a conveyor belt 51, the dishes to be cleaned enter the cleaning device 40 from the entrance of the cleaning device 40, after being cleaned by the cleaning device 40, the dishes after being cleaned are conveyed out of the cleaning device 40 by being driven by the conveyor belt 51, and then conveyed to the detection area of the visual detection device 10 for detecting the cleanliness of the dishes, the dishes with qualified cleanliness detected are placed in the above-mentioned storage device 20 by the sorting device 30, and the dishes with unqualified cleanliness detected enter the cleaning device 40 again for cleaning, so that the automatic conveying, cleaning, cleanliness detection and sorting of the dishes are realized, and the detection speed of the cleanliness of the dishes and the sorting speed of the dishes are increased.
In another embodiment of the present application, as shown in fig. 1 and 4, the processing apparatus further includes a processing platform 60, the conveying device 50 is located on the processing platform 60, the sorting device 30 is mounted on the processing platform 60, the conveying device 50 conveys the washed dishes of the washing device 40 to the detection area of the visual inspection device 10, the visual inspection device 10 further performs the cleanliness detection on the washed dishes, and the sorting device 30 sorts the dishes qualified for cleanliness detection into the storage device 20, so that the automatic conveying, washing, cleanliness detection and sorting of the dishes are realized, and the cleanliness detection speed of the dishes and the sorting speed of the dishes are increased.
In still another embodiment of the present application, as shown in fig. 1, 2 and 4, the above-mentioned visual inspection apparatus 10 includes: a detection cover 11, a light source device 12, an image acquisition device 13 and an image processing device 14, wherein the detection cover 11 is covered above the conveying device 50, the detection cover 11 and the conveying device 50 form the detection cavity 15, the detection cover 11 is made of opaque materials, and the detection cover 11 comprises a top plate 110 and a side plate 111 connected with the top plate 110; the light source device 12 is located on the inner surface of the top plate 110; the image pickup device 13 is located on the inner surface of the top plate 110; the image processing device 14 is in communication connection with the image capturing device 13, the image processing device 14 is configured to process the image of the tableware collected by the image capturing device 13 to obtain a detection result indicating whether the cleanliness of the tableware is qualified, the detection cover 11 is formed by an opaque material so that light in the external environment does not irradiate the inside of the detection cover, which does not affect the image capturing by the image capturing device 13, and further ensures the accuracy of the detection result of the visual detection device 10, the light source device 12 provides auxiliary lighting for the image capturing device 13 so that the image capturing device 13 can smoothly capture the image, the image processing device 14 processes the image collected by the image capturing device 13, specifically includes graying, binarization, image recognition, image segmentation, and the like of the image, and the cleanliness of the tableware is obtained based on the processing result of the image processing device 14 on the image, the cleanness of the tableware can be accurately detected.
In another embodiment of the present application, as shown in fig. 1, 2 and 4, the light source device 12 includes a plurality of light sources disposed at equal intervals, and a connection line of projections of centers of the plurality of light sources on the inner surface of the top plate 110 forms a circle, a projection of a center of the image capturing device 13 on the inner surface of the top plate 110 is located in the circle, the side plate 111 and the conveying device 50 form the first opening 16 and the second opening 17 of the detection chamber 15, the light source device 12 and the image capturing device 13 are disposed on the top plate 110, so that the image capturing device 13 captures images, of course, a connection line of projections of centers of the plurality of light sources on the inner surface of the top plate 110 may also form a triangle, a forward direction, a pentagon, etc., and the plurality of light source devices 12 may be disposed at equal intervals or may be disposed at unequal intervals, a projection of a center of the image capturing device 13 on the inner surface of the top plate 110 is located in the circle, so that the light source device 12 provides enough illumination light source for the image capturing device 13, which is convenient for the image capturing device 13 to capture images, and further ensures the accuracy of the detection result of the visual detection device 10.
It should be noted that the light source device may also be an annular light source, a triangular light source with a hollow middle portion, a square light source with a hollow middle portion, and the like.
In another embodiment of the present application, as shown in fig. 1, fig. 2 and fig. 4, the visual inspection apparatus 10 further includes a display apparatus 18, a data storage apparatus and a controller 112, the display apparatus 18 is located at one side of the processing platform 60, the display apparatus 18 is respectively connected to the image capturing apparatus 13 and the image processing apparatus 14 in a communication manner, the display apparatus 18 is configured to display the image captured by the image capturing apparatus 13, the image processed by the image processing apparatus 14, and the inspection result, so that a relevant person can view the inspection result; the data storage device is in communication connection with the image processing device 14, the data storage device is used for storing the detection result of the tableware, and the data storage device is located in a computer; the controller 112 is located on a side of the processing platform 60 away from the detecting cover 11, the controller 112 is in communication connection with the image processing device 14, the controller 112 is configured to generate a control signal according to the detection result and send the control signal to the sorting device 30, the control signal is configured to control the sorting device 30 to place the tableware with qualified cleanliness into the storage device 20, that is, the display of the image, the display of the detection result, the storage of the detection result, and the control of the sorting device 30 are achieved, and the accuracy of the detection result of the visual detection device 10 is ensured.
It should be noted that the display devices include, but are not limited to, LED display screens and LCD display screens, and those skilled in the art can select suitable display devices according to actual situations.
The image processing device can be any device capable of detecting the cleanliness of the tableware entering the detection cavity so as to determine whether the cleanliness of the tableware is qualified. In a specific embodiment of the present application, the image processing apparatus performs the steps of:
step S101, acquiring an image including tableware;
step S102, preprocessing the image to obtain a binary image;
step S103, acquiring an image area corresponding to the tableware in the preprocessed image;
and step S104, determining whether the cleanliness of the tableware is qualified or not at least according to the gray value of each pixel point in the image area.
In the above scheme, the image including the tableware is obtained, the binarization processing is performed on the obtained image, the image area corresponding to the tableware is obtained from the image obtained through the binarization processing, and the gray values of the pixel points in the image area corresponding to the existence of the stain on the tableware are different, so that the gray values of the pixel points in the image area corresponding to the existence of the solid attachment on the tableware are also different, and further, whether the stain, the solid attachment and the like exist on the tableware are determined according to the gray values of the pixel points in the image area corresponding to the tableware, namely, whether the cleanliness of the tableware is qualified is determined.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
In an embodiment of the present application, determining whether the cleanliness of the tableware is qualified at least according to the gray-level values of the pixel points in the image region includes: detecting whether the gray value of each pixel point in the image area is larger than a preset gray value or not; and when the gray value of each pixel point in the image area is greater than the preset gray value, determining that the cleanness of the tableware is qualified, namely when the tableware is cleaner, each position point in the image area is brighter, namely the gray value of each pixel point in the image area is greater, and when the gray value of each pixel point is greater than the preset gray value, specifically, if the range of the gray values is 0-1, namely, when the gray value of each pixel point is greater than 0.8, determining that the cleanness of the tableware is qualified.
It should be noted that, if the range of the gray-level value is 0 to 1, the size of the predetermined gray-level value includes, but is not limited to, 0.8, and those skilled in the art can select an appropriate predetermined gray-level value according to actual situations.
In another embodiment of the present application, determining whether the cleanliness of the tableware is qualified at least according to the gray-level values of the pixel points in the image region, further includes: detecting the area of a continuous region under the condition that the gray value of at least one pixel point in the image region is smaller than the preset gray value, wherein the continuous region is a region in which the gray values of the pixel points in the image region are all smaller than the preset gray value; determining whether the area of the continuous region is less than an area threshold; determining that the cleanliness of the tableware is qualified when the area of the continuous area is determined to be smaller than the area threshold; and under the condition that the area of the continuous area is determined to be larger than or equal to the area threshold, determining that the cleanliness of the tableware is unqualified, namely under the condition that gray values of pixel points detected in a certain continuous area are all smaller than the preset gray value, the area of the continuous area also needs to be judged, under the condition that the area of the continuous area is smaller, the cleanliness of the tableware can not be judged to be unqualified due to the nature of the tableware, under the condition that the area of the continuous area is larger, determining that the cleanliness of the tableware is unqualified, and carrying out secondary cleaning on the tableware with unqualified cleanliness, so that the accurate determination of whether the cleanliness of the tableware is qualified or not is realized, and the cleanliness of the tableware is ensured.
It should be noted that the predetermined gray value and the area threshold are obtained by training a large amount of detection data, specifically, by using algorithms such as a machine learning algorithm and a deep learning algorithm, and the specific training process includes: acquiring an image comprising tableware; preprocessing the acquired image, wherein the preprocessing comprises graying processing of the image and binarization processing of the image, segmenting the preprocessed image, classifying, identifying and area marking the segmented image, comparing the processed image with a standard cleanliness image, marking defect positions (unclean positions) based on an image identification algorithm and an expert decision algorithm, counting the number of defects (the number of areas with stains), and further formulating an evaluation standard of tableware cleanliness, namely determining a preset gray value and an area threshold value.
In another embodiment of the present application, in a case where it is determined that the area of the continuous region is greater than or equal to the area threshold, the detection method further includes: labeling the continuous region with the area larger than or equal to the area threshold value in the image region to obtain the labeled image region; and displaying the image and the marked image area, namely marking the detected continuous area under the condition that the gray values of the pixel points of the detected continuous area with a large area are smaller than the preset gray value, displaying the marked image area to be convenient for relevant personnel to check, and cleaning the tableware with unqualified cleanliness for the second time according to the displayed result, thereby further ensuring the cleanliness of the tableware.
In another embodiment of the present application, the preprocessing the image to obtain a binarized image includes: graying the image to obtain a grayscale image; the gray level image is subjected to image binarization processing to obtain the binary image, namely the color image needs to be converted into the gray level image under the condition that the obtained image containing the tableware is the color image, and then the binary image is subjected to binarization processing to obtain the binary image, so that the gray level value of each pixel point in the image area can be conveniently obtained subsequently, and the cleanness of the tableware is further ensured.
The preprocessing further includes denoising, correcting and the like of the image, specifically, denoising of the image is to remove noise in the image, the noise includes gaussian noise, poisson noise, salt and pepper noise and the like, an image denoising algorithm includes neighborhood average filtering, median filtering, low-pass filtering, high-pass filtering and the like, a shot image may be deformed due to camera shake, camera distortion or defects of a mechanical structure of the camera, and the deformed image is repaired through the correction of the image.
In another embodiment of the present application, the predetermined gray level is between 150 and 250, and the area threshold is between 0.1 and 1.5mm2In between, namely under the condition that the range of the gray value is 0-255, the predetermined gray value is 150-250, of course, the predetermined gray value can be a value other than 150-250, and the area threshold can be 0.1-1.5 mm2And the other values further ensure the accurate identification of the cleanliness of the tableware by setting the preset gray value and the area threshold value.
In another embodiment of the present application, as shown in fig. 1 to 4, said processing apparatus further comprises a first position detecting device 70 and a second position detecting device 80, said first position detecting device 70 is located on said conveying device 50 in said detection cavity 15, said first position detecting device 70 is used for detecting whether said dishes are located in said detection cavity 15; the second position detecting device 80 is located on the conveying device 50 at the side of the second opening 17 far from the first opening 16, the second position detecting device 80 is used for detecting whether the tableware reaches a predetermined position, when the first position detecting device 70 detects that the tableware is located in the detecting cavity 15, the image collecting device 13 is triggered to start collecting images including the tableware, when the second position detecting device 80 detects that the tableware completely leaves the detecting cover 11, the image collecting device 13 is triggered to stop collecting images, and the sorting device 30 is triggered to place the tableware with qualified cleanliness into the receiving device 20, so that the reasonable setting of the shooting time of the image collecting device 13 is realized, and compared with the continuous shooting, the correctness and pertinence of the shot images are ensured, and the storage space of the data storage device is saved, and the sorting apparatus 30 is guaranteed to sort the dishes accurately and timely.
It should be noted that the first position detection device and the second position detection device include, but are not limited to, a photoelectric sensor, and those skilled in the art can select a suitable first position detection device and a suitable second position detection device to meet the detection requirement.
In another embodiment of the present application, as shown in fig. 1 and 2, the receiving apparatus 20 includes a plurality of stations spaced apart in a height direction for receiving the dishes, so as to receive the dishes with a qualified cleanliness.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
1) the utility model provides a visual detection equipment, install light source equipment in detecting the cavity, light source equipment provides auxiliary lighting for image acquisition equipment and makes image acquisition equipment acquire the image smoothly, and because the detection cover body is not totally transparent, make image acquisition equipment be difficult for receiving the influence of the light in the environment, the picture of having guaranteed image acquisition equipment and shooing is undistorted, the accuracy of visual detection equipment's testing result has been guaranteed and, this testing equipment is owing to including the cover body, thereby can alleviate or avoid judging the shadow to alleviate for the filth or avoided judging the problem of filth as the shadow, the accuracy of visual detection equipment's testing result has further been guaranteed.
2) The utility model provides a processing apparatus of tableware, including foretell visual detection equipment, foretell visual detection equipment installs light source equipment in detecting the cavity, light source equipment provides auxiliary lighting for image acquisition equipment and makes image acquisition equipment acquire the image smoothly, and because the detection cover body is not totally transparent, make image acquisition equipment be difficult for receiving the influence of the light in the environment, the picture of having guaranteed image acquisition equipment to shoot is undistorted, the accuracy of visual detection equipment's testing result has been guaranteed and, this testing equipment is because including the cover body, thereby can alleviate or avoid judging the shadow to alleviate for the filth or avoid judging the problem of filth with the shadow, the processing apparatus's of tableware better treatment effect has further been guaranteed.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A visual inspection apparatus, comprising:
the detection cover body is used for forming a detection cavity for accommodating a detection object, and at least part of the detection cover body is made of opaque materials;
the light source equipment is arranged in the detection cavity;
the image acquisition equipment is arranged in the detection cavity;
and the image processing equipment is in communication connection with the image acquisition equipment and is used for processing the image of the detection object acquired by the image acquisition equipment to obtain a detection result.
2. The visual inspection device of claim 1, wherein the inspection enclosure further includes a top plate, the light source device and the image capture device being spaced apart on an inner surface of the top plate.
3. The visual inspection apparatus of claim 2, wherein the light source apparatus includes a plurality of light sources disposed at equal intervals, and a line connecting projections of centers of the plurality of light sources on the inner surface of the top plate forms a circle, and a projection of the center of the image capturing apparatus on the inner surface of the top plate is located within the circle.
4. The visual inspection device of claim 3, wherein a projection of a center of the image capture device onto the inner surface of the top plate is located at a center of the circle.
5. The visual inspection device of claim 2, wherein the inspection enclosure includes a side panel coupled to the top panel, the side panel having opposing first and second openings, the first opening being an entrance of the inspection object into the inspection chamber and the second opening being an exit of the inspection object.
6. The visual inspection apparatus of claim 5, wherein the inspection enclosure further includes a third opening opposite the top plate, the third opening communicating the first opening and the second opening.
7. The visual inspection device of claim 1, wherein the enclosure is a non-transparent piece.
8. The visual inspection apparatus of any one of claims 1 to 7, further comprising:
and the display equipment is respectively in communication connection with the image acquisition equipment and the image processing equipment, and is used for displaying the image acquired by the image acquisition equipment, the image processed by the image processing equipment and the detection result.
9. The visual inspection apparatus of any one of claims 1 to 7, further comprising:
the data storage device is in communication connection with the image processing device and is used for storing a detection result of the detection object;
and the controller is in communication connection with the image processing equipment and is used for generating a control signal according to the detection result, wherein the control signal is a signal for processing the detection object which is detected.
10. A treatment device for cutlery comprising a visual inspection apparatus, characterised in that the visual inspection apparatus is as claimed in any one of claims 1 to 9.
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