KR20120091580A - Classification system and method of flat or elongated particles in aggregate using image analysis - Google Patents

Abstract

PURPOSE: A system and a method for sorting flat elongated particles of aggregates using image analysis are provided to obtain accurate size of aggregates by comparing the size of aggregates in an image with reference data of flat elongated particles. CONSTITUTION: A system for sorting flat elongated particles of aggregates using image analysis comprises a plurality of cameras(150) which photograph aggregates(10) from vertical and horizontal sides, an image interpretation unit(160) which measures the size of aggregates photographed by the cameras and compares the measured size with reference data of flat elongated particles, and a sorting control unit(170) which creates sorting data about the aggregates compared with the reference data of flat elongated particles.

Description

Classification system and method of flat or elongated particles in aggregate using image analysis}

The present invention relates to an aggregate flapstone classification system and classification method using image analysis, and more particularly, to measure the size of the aggregate taken by imaging the aggregate in the vertical direction and the horizontal direction, and compare it with the flapstone reference data The present invention relates to an aggregate segregation classification system and classification method using image analysis for classifying segregation.

In the method of classifying the segregation from aggregate, the user directly measures the size of the aggregate using a vernier caliper and checks whether it is included in KS F 2575, the KS standard of the segregation content test method, and finally A classification scheme is used. Here, KS F 2575 is prescribed that the ratio of the maximum length and the minimum length of the aggregate is three times or more.

As such, the method of classifying flagstone is time consuming because the user must classify by hand, and there is a problem that the measurement of aggregate size through vernier calipers is not consistent and accurate.

Therefore, the present invention was created in order to solve the above problems, by measuring the size of the aggregate taken by imaging the aggregate in the vertical and horizontal direction, and classifying the segregation by comparing it with the segregation reference data, It is an object of the present invention to provide a system for classifying aggregates and aggregates using aggregate analysis that reduces the time spent on feldspar classification and consistently and accurately measures the measurement of aggregate size.

An object of the present invention as described above a plurality of cameras for imaging the aggregate in the vertical and horizontal directions, respectively; A photograph reading unit which measures the size of the aggregate photographed by the camera unit and compares it with the flagstone reference data; And a classification controller configured to generate classification data for the aggregate compared to the deck seat reference data in the photo reading unit.

Aggregate supply unit for moving the aggregate; An aggregate transfer unit for transferring the aggregate moved from the aggregate supply unit at a constant speed; A decanter for arranging aggregates conveyed through the aggregate transfer unit in a line to match the position of the camera unit; A rejector for removing aggregates that are not spaced apart at regular intervals from the decanter; A classifier that classifies aggregate based on the classification data of the classification controller; And an aggregate storage unit for storing the aggregate classified by the classifier.

The camera unit comprises a first camera for imaging the aggregate in the vertical direction; And a second camera for imaging the aggregate in the horizontal direction.

The photograph reading unit may include: a measuring unit measuring lengths of the horizontal, vertical and height of the aggregate captured by the camera unit; And a comparison unit for comparing the lengths of the measured width, length, and height of the aggregate with the reference stone reference data.

The basestone data is more than three times the ratio between the maximum and minimum lengths of aggregates.

Aggregate storage unit is stored in the segregation that matches the segregation criteria data of the segregation criteria classified by the segregator storage; And a non-segregated stone storage box in which aggregates which do not match the segregation criteria data classified through the classifier are classified and stored.

In another category, an object of the present invention is an aggregate supply step in which the aggregate supply unit moves the aggregate; An aggregate transfer step of transferring the aggregate to the aggregate at a constant speed; An imaging position and an interval adjusting step in which the incline and the rejector arrange the aggregates in a line at a predetermined interval; An imaging step in which the camera unit photographs the aggregate in the vertical direction and the horizontal direction; Aggregate length measuring step of measuring the length of the horizontal, vertical and height of the aggregate measured by the measuring unit; A comparison step of comparing the lengths of the horizontal, vertical and height of the aggregate measured by the comparison unit with the reference data; A segregation classification step of classifying the aggregate by receiving the classification data of the aggregate compared with the segregation reference data from the classification control unit; And a segregation storage step in which aggregates matching the segregation criteria data are stored in the segregation storage box.

The unsegregated stone storage step of storing aggregates that do not match the segregated stone standard data in the unsegregated stone storage box; further includes.

The imaging step captures the aggregate in the vertical and horizontal directions through a camera section having one or more cameras.

The basestone data is more than three times the ratio between the maximum and minimum lengths of aggregates.

According to the present invention has the effect of reducing the time spent in the classification of segregation and consistently and accurately measure the size of the aggregate.

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be interpreted.
1 is a perspective view of an aggregate segregation classification system using image analysis according to a preferred embodiment of the present invention.
2 is a block diagram of an aggregate sheeting stone classification system using image analysis according to a preferred embodiment of the present invention.
3 is a flowchart illustrating a method for classifying aggregate sheet stones using image analysis according to a preferred embodiment of the present invention.

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

Aggregate Using Image Analysis Flagstone  Classification system>

1 is a perspective view of an aggregate sheeting stone classification system using an image analysis according to a preferred embodiment of the present invention, Figure 2 is a block diagram of an aggregate sheeting stone classification system using an image analysis according to a preferred embodiment of the present invention. .

As shown in Figures 1 and 2, the aggregate sheeting stone classification system 100 using the image analysis according to the preferred embodiment of the present invention is the aggregate supply unit 110, aggregate transfer unit 120, decanter 130, rejector 140, a camera unit 150, a photo reading unit 160, a classification control unit 170, a classifier 180, and an aggregate storage unit 190.

Aggregate supply unit 110 is to move the aggregate 10 by generating a vibration, such aggregate supply unit 110 by the vibration along the periphery of the center of the recessed center on the basis of the recessed center will be described later The aggregate transfer unit 120 to be moved to the upper position. Here, the upper portion of the aggregate supply unit 110 is provided with a groove for adjusting the height so that only the aggregate 10 consisting of a predetermined size or less can be moved. As such, the aggregate 10 moved through the groove is moved to the aggregate transfer unit 120 to be described later. Here, the method of moving the aggregate supply unit 110 to the aggregate 10 has been described in a manner using vibration, but this is because it is only to move the aggregate 10 to the aggregate transfer unit 120 to be described later, such as a belt transfer method Can be changed in a manner.

Aggregate transfer unit 120 is to transfer the aggregate 10 moved from the aggregate supply unit 110 at a constant speed, which is the same structure as a general conveyor belt. As such, the aggregate supply unit 110 described above is located on one side of the aggregate transport unit 120, the segregation storage box 191 is located on the other side in the longitudinal direction, the aggregate supply unit 110 on the side of the aggregate transport unit 120. Based on the inclination 130, the rejector 140, the camera unit 150 and the classifier 180 are sequentially located. As such, as the aggregate transport unit 120 transfers the aggregate 10 at a constant speed, the decanter 130, the rejector 140, the camera unit 150, and the classifier 180 operate in sequence to the aggregate 10. Classify the included flagstone.

The decanter 130 arranges the aggregate 10 transferred through the aggregate transfer unit 120 in a line to match the position of the camera unit 150, and is coupled to be inclined at a predetermined angle at the side of the aggregate transfer unit 120. In this way, the end of the inclined aggregate transfer unit 120 is to match the position of the camera unit 150 installed on the side of the aggregate transfer unit 120. As such, the decanter 130 allows the camera unit 150 to accurately capture the aggregate 10 by allowing the aggregate 10 transferred from the aggregate transfer unit 120 to pass precisely to the point where the camera unit 150 is located. Make sure

Rejector 140 is to remove the aggregate 10 that is not spaced apart from the incliner 130 by a predetermined interval, located on the side of the aggregate transfer unit 120, when the aggregate 10 is moved in a row, the front and rear intervals are too close By pushing the aggregate 10 of the front and rear gap between the aggregate 10 to be constant. As such, the ejector 140 that regularly arranges the intervals of the aggregate 10 is provided with an ultrasonic sensor, and when the ultrasonic signal sent from the ultrasonic sensor to the aggregate 10 returns faster than the set interval, the corresponding aggregate ( 10) is pushed to the opposite side of the aggregate transport unit 120 so that the interval between the aggregate (10) is constant. Here, the aggregate 10 pushed to the opposite side of the aggregate transport unit 120 is stored in a separate storage box and reused for classification of segregation stones. As such, the ejector 140 which pushes the aggregate 10 is composed of a pneumatic piston and aggregates the aggregate 10 by the reciprocating motion of the piston acting by pneumatic when the signal transmitted from the ultrasonic sensor returns faster than the set interval. Push it to the opposite side of the conveying part 120. Here, the pneumatic piston can be changed to other means capable of pushing the aggregate 10 in a reciprocating motion based on the signal of the ultrasonic sensor.

The camera unit 150 captures the aggregate 10 in the vertical direction and the horizontal direction, and includes a first camera 151 and a second camera 152.

Here, since the first camera 151 and the second camera 152 capture the moving aggregate 10 and measure the length of the aggregate 10 through the photographed image, the moving aggregate 10 afterimage is moved. It is desirable to use an ultrafast camera capable of imaging without a camera. In addition, the first camera 151 and the second camera 152 are connected to the photo reader 160 to be described later by USB and the first camera 151 and the second camera 152 through the USB connection, such as The photographed picture is transmitted to the picture reading unit 160.

The first camera 151 captures the aggregate 10 transferred through the aggregate transfer unit 120 in the vertical direction, and the first camera 151 captures the horizontal and vertical lengths of the aggregate 10. Here, the first camera 151 is located on the upper portion of the aggregate transport unit 120 and the first camera 151 by connecting a support to the side of the aggregate transport unit 120 such that the first camera 151 is located on the upper side. To be fixed.

The second camera 152 captures the aggregate 10 transferred through the aggregate transfer unit 120 in the horizontal direction, and the second camera 152 captures the length of the height of the aggregate 10. Here, the second camera 152 is located on the side of the aggregate transfer unit 120. In addition, the background film 153 is located on the opposite side of the aggregate transport unit 120 where the second camera 152 is located, and when the second camera 152 captures the aggregate 10, the aggregate 10 is included in the photographed image. Make sure no background or object is captured. As such, the background film 153 unifies the surrounding background when the photographing unit 160 to be described later separates the surrounding background and the aggregate 10 of the photograph of the aggregate 10 photographed by the second camera 152 and aggregates ( This is for accurate separation of 10).

The photo reading unit 160 measures the size of the aggregate 10 photographed by the camera unit 150 and compares it with the flagstone reference data, and includes a measuring unit 161 and a comparing unit 162.

As such, the photo reading unit 160 is connected to the classification control unit 170 to be described later by USB and the size and sheeting reference data of the aggregate 10 measured by the photo reading unit 160 through such a USB connection; Is compared to the classification control unit 170 is transmitted. In addition, the photo reader 160 may be located in a separate space spaced from the aggregate transfer unit 120, such a position may be changed by a simple design change by those skilled in the art.

The measuring unit 161 measures the lengths of the horizontal, vertical and height of the aggregate 10 captured by the camera unit 150. Here, the measuring unit 161 is provided with an image recognition program to separate the surrounding background and the aggregate 10 from the aggregate 10 photographed by the camera unit 150, and then only for the aggregate 10 separated horizontally, vertically And the length of the height.

The comparison unit 162 compares the length, width, and height of the aggregate 10 measured by the measurement unit 161 with the flagstone reference data, wherein the flagstone reference data is stored inside the comparison unit 162. It is stored. In addition, the flanking stone reference data is to determine whether the ratio of the maximum length and the minimum length of the aggregate 10 is three times or more, where the maximum length and the minimum length of the aggregate 10 are horizontal and vertical of the aggregate 10. And length of height.

The classification control unit 170 generates classification data regarding whether the aggregate 10 of the aggregate 10 is compared with the segregation reference data in the photo reading unit 160, and the classification control unit 162 measures the aggregate data of the aggregate 10. If the length of the width, length and height match the flagstone reference data, it is classified as the flagstone, and the length of the width, length, and height of the aggregate 10 measured by the comparing unit 162 does not match the flagstone reference data. If not, they are classified as unseparated stones. In addition, the classification control unit 170 may be located in a separate space spaced from the aggregate transfer unit 120, such a position may be changed by a simple design change by those skilled in the art.

The classifier 180 is located on the side of the aggregate transport unit 120 and classifies the aggregate 10 based on the classification data of the classification control unit 170. Here, when the classification data is a sheet, the aggregate 10 is the classifier. The sorter 180 is moved in a direction opposite to the side of the aggregate transporter 120 so that the sorter 180 is pushed to the outside of the aggregate transporter 120 and stored in the sequin storage box 191 to be described later. ) So that the aggregate 10 is separated from the aggregate transfer part 120. In addition, when the classification data is unseparated stones, the classifier 180 is moved in the side direction of the aggregate transport unit 120 so that the aggregate 10 is moved along the aggregate transport unit 120 and stored in the unseparated stone storage box 192. 180) does not contact the aggregate (10). As such, the classifier 180 pushes the aggregate 10 to the outside of the aggregate transfer part 120 by the reciprocating motion of the pneumatic piston based on the classification data. Here, the pneumatic piston can be changed to other means capable of pushing the aggregate 10 in a reciprocating motion based on the fractionation data.

Aggregate storage unit 190 is to store the aggregate (10) classified by the classifier 180, and includes a segregation storage 191 and non-separation storage (192).

The flagstone storage box 191 is located in the opposite side of the aggregate transfer unit 120 and stores the aggregate 10 whose length, length, and width of the aggregate 10 matches the flagstone reference data. Here, the aggregate 10 is classified through the classifier 180 and stored in the segregation storage box 191 is omitted since it was described in the classifier 180 above.

Unsegregated stone storage box 192 is located at the end of the forward direction of the aggregate transport unit 120 and does not match the segregation reference data classified through the classifier 180 when the misaligned reference stone classified through the classifier 180 does not match. Do not store aggregates (10). Here, the aggregate 10 is classified through the classifier 180 and stored in the unseparated stone storage box 192 is omitted since it was described in the classifier 180 above.

Aggregate Using Image Analysis Flagstone  Classification method>

3 is a flowchart illustrating a method for classifying aggregate sheet stones using image analysis according to a preferred embodiment of the present invention.

As shown in FIG. 3, the method for classifying aggregate segregation stones using image analysis according to a preferred embodiment of the present invention includes an aggregate supply step (S110), an aggregate transport step (S120), an imaging position and an interval adjusting step (S130), and an imaging method. Step (S140), aggregate length measurement step (S150), reference data and comparison step (S160), segregation stone classification step (S170) and segregation stone storage step (S180).

Aggregate supply step (S110) is the aggregate supply unit 110 to move the aggregate 10, where the aggregate supply unit 110 to move the aggregate 10 may be a method using vibration, which is skilled in the art It can be changed by simple design change.

Aggregate transport step (S120) is the aggregate transport unit 120 to transport the aggregate (10) at a constant speed, wherein means for transferring the aggregate (10) at a constant speed may be a means such as a conveyor belt.

In the imaging position and the interval adjusting step (S130), the inclination device 130 and the rejector 140 arrange the aggregate 10 in a line at a predetermined interval. Here, the decanter 130 is arranged in a line to match the position of the aggregate (10) to be transferred through the aggregate transfer unit 120 to the camera unit 150, inclined at a predetermined angle to the side of the aggregate transfer unit 120 is coupled The end of the decanter 130 is made to match the position of the camera unit 150. In addition, the ejector 140 is arranged to space apart the aggregates 10 arranged in a line at a predetermined interval from the decanter 130, when a plurality of aggregates 10 are moved in a row when the front and rear intervals are too close to one By pushing the aggregate 10 to be constant between the front and rear between the aggregate (10). Here, whether the front and rear gap between the aggregate 10 is close can be measured by receiving the ultrasonic signal sent to the aggregate 10 by the ultrasonic sensor provided in the rejector 140.

In the imaging step S140, the camera unit 150 captures the aggregate 10 in the vertical direction and the horizontal direction, and the camera unit 150 includes one or more cameras. Such a camera unit 150 having one or more cameras may include, for example, a first camera 151 for photographing the aggregate 10 in a vertical direction and a second camera 152 for photographing the aggregate 10 in a horizontal direction. It can be composed of). In addition, since the first camera 151 and the second camera 152 need to measure the length of the aggregate 10 moving through the aggregate transport unit 120 and measure the length, the aggregate 10 can be captured without afterimages. It is desirable to use an ultrafast camera.

Aggregate length measurement step (S150) is the measurement unit 161 measures the length of the horizontal, vertical and height of the aggregate (10) imaged by the camera unit 150. Here, the measuring unit 161 is provided with an image recognition program, through which, after separating the surrounding background and the aggregate 10 from the aggregate 10 photographed by the camera unit 150 only for the aggregate 10 separated. Measure the length of the width, length and height.

In the comparison step S160 with reference data, the comparison unit 162 compares the lengths of the horizontal, vertical, and height of the aggregate 10 with the flagstone reference data. As such, the sheeting reference data is stored in the comparison unit 162 to determine whether the ratio between the maximum length and the minimum length of the aggregate 10 is three times or more, where the maximum length and the minimum length are aggregates ( 10) means the length of the width, length and height.

In the segregation classification step S170, the classifier 180 classifies the aggregate 10 based on the classification data of the aggregate 10 compared with the segregation reference data. Here, when the classification data is the segregation stone, the aggregate 10 is pushed to the outside of the aggregate transport unit 120 through the classifier 180 to be stored in the segregation storage box 191, the side of the aggregate transport unit 120 By moving in the opposite direction, the classifier 180 pushes the aggregate 10 so that the aggregate 10 is separated from the aggregate transfer part 120. In addition, when the classification data is unfragmented stone, the classifier 180 is moved in the lateral direction of the aggregate conveyance unit 120 so that the aggregate 10 is moved to the unfragmented stone storage box 192 so that the classifier 180 does not touch the aggregate 10. Do not.

Segregation storage step (S180) is that the aggregate 10 is matched to the seraphic reference data is stored in the segregation box 191, more specifically, the segregation (10) to the segregation in the aggregate transport unit 120 ( It is pushed in the direction opposite to the side by 180) means that it is stored in the sheet storage box (191).

Unsegregated stone storage step (S190) is that the aggregate (10) that does not match the segregation reference data is stored, more specifically, the aggregate (10) classified as unsegregated stone is moved along the aggregate transport unit 120, aggregate transport unit ( It means that it is stored in the unseated stone storage box (192) located at the end of the direction of travel of 120.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: aggregate
100: Aggregate sheeting stone classification system using image analysis
110: aggregate supply unit 120: aggregate transfer unit
130: decanter 140: rejector
150: camera unit 151: first camera
152: second camera 153: backdrop
160: photo reader 161: measurement unit
162: comparison unit 170: classification control unit
180: classifier 190: aggregate storage
191: Sedan storage box 192: Sedan storage box
S110: aggregate supply step S120: aggregate transfer step
S130: Image pickup position and gap adjustment step S140: Image pickup step
S150: Aggregate length measurement step S160: Comparison step with reference data
S170: Segregation stages S180: Segregation storage stages
S190: Untoned Stone Storage Step

Claims (10)

A plurality of camera units 150 for imaging the aggregate 10 in the vertical and horizontal directions, respectively;
A photo reading unit 160 measuring the size of the aggregate 10 captured by the camera unit 150 and comparing it with the sheeting stone reference data; And
Aggregate sheeting stone classification system using an image analysis, characterized in that it comprises a; classification control unit 170 for generating classification data for the aggregate 10 compared with the sheeting stone reference data in the photo reader 160 .
The method of claim 1
Aggregate supply unit 110 for moving the aggregate (10);
An aggregate transfer unit 120 for transferring the aggregate 10 moved from the aggregate supply unit 110 at a constant speed;
A decanter 130 for arranging the aggregate 10 transferred through the aggregate transfer unit 120 in a line to match the position of the camera unit 150;
A rejector 140 for removing the aggregate 10 that is not spaced apart from the incliner 130 by a predetermined interval;
A classifier (180) for classifying the aggregate (10) based on the classification data of the classification control unit (170); And
Aggregate sheeting stone classification system using an image analysis, characterized in that it further comprises; aggregate storage unit for storing the aggregate (10) classified by the classifier (180).
The method of claim 1
The camera unit 150,
A first camera 151 for imaging the aggregate 10 in a vertical direction; And
Aggregate sheeting stone classification system using an image analysis, comprising a; a second camera (152) for imaging the aggregate (10) in the horizontal direction.
The method of claim 1
The photo reading unit 160,
A measurement unit 161 for measuring the length of the horizontal, vertical and height of the aggregate 10 captured by the camera unit 150; And
Aggregate sheeting stone classification system using an image analysis, characterized in that it comprises a; comparison unit (162) for comparing the measured length of the horizontal, vertical and height of the aggregate (10) with the flagstone reference data.
The method of claim 1
The sheeting stone reference data is a coarse aggregate sheeting stone classification system using image analysis, characterized in that the ratio of the maximum length and the minimum length of the aggregate (10) more than three times.
The method according to claim 2, wherein
The aggregate storage unit 190,
A sheet storage box 191 in which the aggregate 10 corresponding to the sheet stone standard data classified through the classifier 180 is classified and stored; And
Classified aggregate segregation using image analysis, characterized in that it comprises ;; unseparated stone storage box (192) in which the aggregate (10) that does not match the segregation criteria data classified by the classifier 180 is classified and stored; system.
Aggregate supply unit 110, aggregate supply step for moving the aggregate (S110);
Aggregate transporting unit 120, aggregate transport step of transporting the aggregate (10) at a constant speed (S120);
An imaging position and an interval adjusting step (S130) of arranging the aggregate 10 in a line by the inclination device 130 and the rejector 140;
Imaging step (S140) for the camera unit 150 to capture the aggregate in the vertical direction and the horizontal direction (S140);
An aggregate length measuring step of measuring unit 161 measuring the length of the horizontal, vertical and height of the imaged aggregate 10;
A comparison step (S160), wherein the comparison unit (162) compares the measured lengths of the horizontal, vertical and height of the aggregate (10) with reference data;
A segregation classification step (S170) of classifying the aggregate 10 of the aggregate 10 by receiving a classification data of the aggregate 10 compared with the segregation reference data; And
A segregation segregation method using image analysis, comprising: a segregation storage step (S180) in which the aggregate (10) is stored in the segregation storage box (191) matching the segregation reference data.
The method of claim 7, wherein
Coarse aggregate segregation method using the image analysis, characterized in that it further comprises; non-separated stone storage step (S190) is stored in the non-separated stone storage box 192, the aggregate 10 that does not match the seraphic reference data; .
The method of claim 7, wherein
The imaging step (S140) is a coarse aggregate segregation method using image analysis, characterized in that for imaging the aggregate (10) in the vertical and horizontal direction through the camera unit 150 having one or more cameras.
The method of claim 7, wherein
The flagstone reference data is a coarse aggregate classification method using image analysis, characterized in that the ratio of the maximum length and the minimum length of the aggregate (10) more than three times.

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