KR100997071B1 - Article sorting system using rfid - Google Patents

Article sorting system using rfid Download PDF

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Publication number
KR100997071B1
KR100997071B1 KR20080129504A KR20080129504A KR100997071B1 KR 100997071 B1 KR100997071 B1 KR 100997071B1 KR 20080129504 A KR20080129504 A KR 20080129504A KR 20080129504 A KR20080129504 A KR 20080129504A KR 100997071 B1 KR100997071 B1 KR 100997071B1
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South Korea
Prior art keywords
article
tray
goods
conveyor
unit
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KR20080129504A
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Korean (ko)
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KR20100070799A (en
Inventor
원황희
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한국콘베어공업주식회사
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Priority to KR20080129504A priority Critical patent/KR100997071B1/en
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Abstract

An article classification system using RFID is disclosed.
The article sorting system of the present invention comprises: a main conveyor having a plurality of trays each for transporting articles thereon; An induction conveyor for supplying an article with an RFID tag storing information about the article to a tray of a main conveyor; An RFID reader for recognizing article information of the article by reading the RFID tag attached to the article supplied by the induction conveyor; A tray recognition unit that is mapped 1: 1 to the RFID reader and recognizes the tray when an article read by the RFID reader is supplied on a tray of the main conveyor; Moving distance measuring unit for measuring the distance each tray is moved; An article sorter which separates the article from the tray so that the article on the moving tray is sorted into a sorting box at a predetermined position; And receiving the goods information from the RFID reader, receiving a recognition signal of the tray supplied with the goods from the tray recognition unit, checking the goods supplied to each tray and the goods information, and determining the moving distance value of each tray from the moving distance measuring unit. And a controller configured to control an operation of the article classification unit to receive and classify a desired article in a classification of a preset position.
Figure R1020080129504
Conveyor, Item, Tray, RFID, Reader, Sort

Description

Item classification system using RFCID {ARTICLE SORTING SYSTEM USING RFID}
The present invention relates to an article classification system, and more particularly, RFID, which allows rapid and accurate classification of articles carried on a conveyor according to preset conditions using radio frequency identification (hereinafter, referred to as RFID). It relates to the article classification system used.
In general, the conveyor (conveyor) is a mechanical device that is installed in the production line or loading station of the factory to automatically transfer the goods or parts in any one direction by the power of the machine to reduce the manpower and improve the work efficiency. These conveyor devices play a major role in factory automation facility lines.
In addition to the ability to transfer goods to conveyors, modern automated equipment production lines have added the ability to sort the transferred goods according to a predetermined position. To this end, an automatic classifier is installed at a specific position in the conveyor device to sort or discharge the goods placed on the tray of the conveyor so as to classify them into a predetermined position.
This conventional article sorting system classifies the same product on a conveyor at a fixed location, which makes it impossible to classify under various conditions for various articles. Recently, even the same goods are often classified into different positions on the conveyor according to demand demand. For example, the same product may be classified and conveyed according to the style, color, size, number, or the like. Thus, it has conventionally been difficult to classify articles to meet these various needs.
Thus, in the prior art, workers at conveyors sorted the articles by hand to meet the various needs of these demands. As a result, there is a problem in that an error occurs in the classification of goods and the labor cost of workers. Recently, in order to solve such a conventional problem, bar code has been introduced to classify articles. The bar code is formed on the goods to be input to the conveyor, and by reading the bar code information, the item information such as the style, color, size, and number of the items to be input is identified and classified.
However, in this case, there is a limit to increase the conveying speed of the conveyor because it is necessary to read the bar code for each item, and if the bar code is not exposed for easy reading, if the item is clothing, shoes, hats, etc. There is a hassle to read the barcode correctly. In addition, there is a limit in improving the processing speed because many items cannot be processed at once and barcodes must be read one by one.
Therefore, in the technical field, there is an urgent need for a technical development of an article classification system capable of accurately classifying articles in accordance with demand of a conveyor and dramatically increasing the conveyance speed of the conveyor.
The present invention is proposed to solve the above problems of the prior art, by using the RFID technology to recognize the information of the goods transported on the conveyor using a RFID to accurately classify a variety of items according to a predetermined condition The purpose is to provide an article classification system.
In addition, the present invention can increase the conveying speed of the conveyor in sorting the goods transported on the conveyor, and another object of the present invention is to provide an article classification system using RFID that can quickly recognize and classify many items.
The present invention for achieving the above object,
A main conveyor having a plurality of trays each for transporting articles thereon;
An induction conveyor for supplying an article with an RFID tag storing information about the article to a tray of the main conveyor;
An RFID reader that reads an RFID tag attached to an article supplied by the induction conveyor to recognize article information of the corresponding article;
A tray recognition unit which is mapped 1: 1 to the RFID reader and recognizes the tray when an article read by the RFID reader is supplied on a tray of the main conveyor;
A moving distance measuring unit measuring a distance traveled by each tray;
An article sorter which separates the article from the tray so that the article on the moving tray is classified into a sorting box at a preset position; And
Receive goods information from the RFID reader and receive the recognition signal of the tray to which the goods are supplied from the tray recognition unit to check the goods supplied by each tray and the goods information, the movement of each tray from the moving distance measuring unit A control unit which receives a distance value and controls an operation of the article classification unit to classify a desired article in a classification of a preset position; It provides an article classification system using an RFID.
In the present invention, the article classification system,
A conveying conveyor for transporting the sorting box in which the sorting of the article is completed; And
Another RFID reader for recognizing article information of the article by reading an RFID tag attached to at least one article included in the sorting box being transported by the conveying conveyor; It may further include.
At this time, the control unit receives the goods information of the goods included in the sorting box from the another RFID reader, and maps the goods sorting reference information of the preset sorting box to verify the sorting result in the sorting box.
In the present invention, the article classification unit may include a tilting means for tilting the tray from side to side so that the article on the tray is separated from the tray.
In the present invention, the tray is composed of two separated flat plates that rotate at both ends as the rotation axis, the article classification unit rotates the central portion of the tray about the rotation axis of the both ends so that the goods on the tray is separated from the tray It may also include a rotating means.
In the present invention, the article sorting unit may include push means for pushing the article on the tray to one side such that the article on the tray is separated from the tray.
In the present invention, the article sorting unit may include a conveying means capable of conveying the article to one side by using a conveyor running perpendicular to the traveling direction of the tray so that the article on the tray is separated from the tray.
In the present invention, the RFID tag may store information including the style, color, and size of the article.
In the present invention, each tray is given a unique identifier (ID), the tray recognition unit preferably recognizes the unique identifier (ID) for each tray.
In the present invention, it is preferable that the control unit sets the classification box to classify the goods according to the information including the customer, the quantity, the working date, and controls the article classification unit to classify the corresponding items into the classification box.
In the present invention, it is preferable that the control unit counts the number of the classified articles in response to the operation control of the article classification unit.
According to the present invention it is possible to accurately classify the goods transported by the conveyor according to the preset conditions.
In addition, according to the present invention it is possible to sort a large amount in a short time with respect to the goods carried by the conveyor, it is possible to increase the conveying speed of the conveyor.
In addition, according to the present invention, when conveying the sorted goods in the conveyor, it is possible to easily and simply check a large amount of goods at once without checking the goods to be shipped.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a plan view schematically showing a conveyor facility to which an article classification system using RFID according to the present invention is applied.
As shown in FIG. 1, the conveyor facility to which the article sorting system of the present invention is applied includes a main conveyor 10, an induction conveyor 20, and a transport conveyor 30. The main conveyor 10 serves to transport the goods for sorting the goods, and the induction conveyor 20 serves to transport the goods to supply the goods to the main conveyor 10. In addition, the transport conveyor 30 serves to transport the goods sorted in the main conveyor (10). Each conveyor 10, 20, 30 is properly arranged with each other for the smooth transfer of goods. On the other hand, in some sections of the main conveyor 10, a plurality of sorting boxes 40 that can store the sorted goods on both lower ends of the main conveyor 10 is arranged in a line along the main conveyor (10).
2 is a diagram schematically illustrating a product classification system using RFID according to an embodiment of the present invention.
2, the article classification system 100 using the RFID according to an embodiment of the present invention, the main conveyor 110, induction conveyor 120, RFID reader 130, tray recognition unit 140, moving distance The measurement unit 150, the article classification unit 160 and the control unit 170.
The main conveyor 110 is an apparatus for transporting the article 180 to another place, and a plurality of trays 111 are provided on the upper portion of the main conveyor 110 to place the article 180 thereon. Here, in the embodiment of the present invention, the articles 180 each include an RFID tag 181. The RFID tag 181 stores information about the article 180, for example, item information such as style, color, size, and the like. At this time, in the embodiment of the present invention, each tray 111 is preferably provided with a unique identifier (ID: identification), respectively. These IDs distinguish each tray 111.
The induction conveyor 120 is a device for transferring and supplying the article 180 to the tray 111 of the main conveyor 110. For example, placing the article 180 on a running induction conveyor 120 to provide the article 180 to the main conveyor 110 and the article 180 is automatically placed on the tray 111 of the main conveyor 110. Supplied by. Such an induction conveyor 120 is preferably implemented as a belt belt, it is preferable that one or more installed. The article 180 may be automatically or manually placed on the induction conveyor 120.
The RFID reader 130 recognizes information about the article 180 carried by the induction conveyor 120. In other words, when the article 180 to which the RFID tag 181 is attached is transferred by the induction conveyor 120, the RFID reader 130 recognizes various article information about the article 180 from the RFID tag 181. Done. Since wireless communication using the RFID is a known technology, a detailed description thereof will be omitted. Although the RFID reader 130 is disposed above the induction conveyor 120 in the drawing, the present invention is not limited thereto and may be located anywhere to recognize article information from the RFID tag 181.
The tray recognition unit 140 distinguishes the tray 111 on which the article 180 is placed. The tray recognition unit 140 is mapped 1: 1 with the RFID reader 130 to determine in which tray 111 the article 180 which is the object of the article information recognized by the RFID reader 130 is placed. Do it. At this time, the tray recognition unit 140 preferably recognizes the unique identifier (ID) assigned to the tray 111. For this purpose, the tray 111 preferably includes an identifier display unit 112. The identifier display unit 112 may be embodied as, for example, a liquid crystal display (LCD) or a light emitting diode (LED). In another example, the identifier display unit 112 may be represented by a barcode or a character. Therefore, it is preferable that the tray recognition unit 140 is manufactured according to the implementation form of the identifier display unit 112.
The movement distance measuring unit 150 measures a distance L at which each tray 111 moves from a preset position P. FIG. In particular, the movement distance measuring unit 150 measures the distance L moved from the preset reference position P after the article 180 is placed on the tray 111. This is to calculate the current position of the article 180 to classify the article 180 placed on the tray 111 into the preset sorting box 190. Here, the sorting box 190 is located in a line along the main conveyor 110 at both ends of the lower portion of the main conveyor 110 in a line containing the article 180 separated from the main conveyor 110. The movement distance measuring unit 150 according to an embodiment of the present invention calculates the movement distance of the tray 111 by using a preset movement speed of the tray 111 and an elapsed time from when the reference point P passes. do.
The article classification unit 160 serves to separate the article 180 from the tray 111 so that the article 180 placed on the tray 111 is classified into a predetermined sorting box 190. As a result, the article 180 on the tray 111 is separated from the tray 111 and classified into the sorting box 190. The article sorting unit 160 may be formed for each tray 111 or may be formed for each sorting box 190. In addition, the article classification unit 160 operates according to an operation control signal of the controller 170, and may be implemented in various forms. This will be described later.
The controller 170 receives the goods information recognized from the RFID reader 130 and receives the ID of the tray 111 to which the goods 180 are supplied from the tray recognition unit 140. At this time, since the RFID reader 130 and the tray recognition unit 140 are mapped in a 1: 1 manner, the RFID reader 130 and the tray recognition unit 140 recognize the article 180 and the tray recognition unit 140 as the object of the item information recognized by the RFID reader 130. The article 180 lying on the tray 111 is identical. As a result, the controller 170 can determine which article information the article 180 recognized by the RFID reader 130 has and what tray 111 the article 180 is placed in, for example, as shown in Table 1 below. .
TABLE 1
RFID reader number Goods Information Tray Number (ID)
No.1 Style: Y / Color: B / Size: XL 12
No.2 Style: Y / Color: W / Size: X 13
In addition, the control unit 170 receives the moving distance for each tray 111 from the moving distance measuring unit 150. As a result, the control unit 170 may know which position the tray 111 carrying the article 180 is currently passing through. Further, the controller 170 controls the operation of the article classification unit 160 to classify the article 180 in the bin 190 using the positions of the trays 111. As a result, the article 180 may be separated from the tray 111 by the driving of the article sorting unit 160 and provided to the sorting box 190. In this case, the controller 170 sets a classification box 190 to classify the article 180 according to information of the customer, quantity, work date, etc. of the article 180 and sets the article 180 corresponding thereto. It is preferable to control the article sorting unit 160 to classify the sorting box 190.
To this end, in the embodiment of the present invention, as shown in Table 2, the control unit 170 presets the article 180 to be classified for each of the plurality of sorting boxes 190 and the article information of the article 180 in advance. Therefore, in the present invention, using the information set as shown in Table 2, it is determined which sorting box 190 the article 180 having what article information is classified.
TABLE 2
article account Quantity Classified No.
A X company 10 3
B X company 20 3
C Y company 30 10
C Z company 40 12
As shown in Table 2, A and B items should be delivered to company X 10 and 20, respectively, and set to classify them three times each. In addition, the article C should be delivered to the Y and Z companies 30 and 40, respectively, and set to classify 10 and 12 sorting boxes, respectively. In accordance with these classification criteria, each article must be classified correctly in the appropriate box.
In addition, the controller 170 controls the article classification unit 160 to classify the article 180 in the specific classification box 190, and preferably counts the number of articles 180 classified. This is to determine how many items are classified in a specific box 190 of a particular article 180. This may count the number of articles 180 classified by counting one by one during the operation of the article classification unit 160 in the controller 170. This count may count the number of sorted articles or inversely count the number of articles to be sorted in the future in the total set quantity.
3 is a schematic diagram of an article classification unit according to an embodiment of the present invention.
Referring to FIG. 3, the article sorting unit 160 according to an example of the present invention may tilt the tray 111 to the left and right so that the article 180 on the tray 111 is separated from the tray 111. ) May be included. Referring to Figure 3 (a), the tilting means 160a according to the present invention is in contact with the lower surface of the tray 111, the roller 161, the support member 162 connected to the roller 161 and the support member It comprises a drive unit 163 for moving the 162 up and down. The tilting means 160a may be provided on at least one side of the tray 111. Reference numeral 31 is a chute for guiding the article 180 leaving the tray 111 to the sorter 190.
As shown in FIG. 3B, the driving unit 163 moves the support member 162 up and down when a predetermined control signal is received from the controller 170. When the supporting member 162 is moved upward, the tray 111 is tilted to one side by the roller 161 in contact with the tray 111, whereby the article 180 placed on the tray 111 is separated to the right and sorted. It enters the box 190.
3 shows an example of the tilting means 160a, but the present invention is not limited thereto. Therefore, the tilting means 160a according to the present invention may be various embodiments capable of tilting the tray 111 left and right. For example, the tray 111 may be tilted left and right due to rotation of a driving motor (not shown) attached to the tray 111.
4 is a schematic diagram of an article classification unit according to another embodiment of the present invention.
As shown in FIG. 4, the article sorting unit 160 according to another exemplary embodiment of the present invention may include a central portion of the tray 111 as a rotating shaft at both ends such that the article 180 on the tray 111 is separated from the tray 111. It may include a rotating means 160b to rotate. Referring to Figure 4 (a), the rotating means 160b according to the present invention is configured to include a cylinder 164 coupled to one surface of the tray 111 and a drive unit 165 connected to the cylinder 164. At this time, the tray 111 of the present invention is preferably made of two separate flat plates (111a, 111b) in which the central portion rotates with both ends as the rotation shaft 166.
As shown in FIG. 4B, the driving unit 165 drives the cylinder 164 when a predetermined control signal is received from the control unit 170. When the cylinder 164 is driven, the tray 111 rotates down about the respective rotation shafts 166 so that the article 180 placed on the tray 111 is separated downward and sorted into 190. Will enter. In this case, the sorting box 190 is preferably located below the main conveyor 110.
In FIG. 4, an example of the rotating means 160b is illustrated, and the present invention is not limited thereto. Therefore, the rotating means 160b according to the present invention may be various embodiments capable of rotating the left and right flat plates of the tray 111 down. For example, a rotating motor (not shown) may be attached to both ends of the tray 111, and the left and right flat plates of the tray 111 may be rotated downward by the rotating motor.
5 is a schematic diagram of an article classification unit according to another embodiment of the present invention.
As illustrated in FIG. 5, the article classification unit 160 according to another example of the present invention pushes the article 180 to one side such that the article 180 on the tray 111 is separated from the tray 111. It may also include a push means (160c). Referring to FIG. 5A, the push means 160c according to the present invention drives at least one push portion 167 and the push portion 167 contacting the article 180 on the upper surface of the tray 111. It includes a drive unit 168.
As shown in FIG. 5B, the driver 168 drives the push unit 167 when a predetermined control signal is received from the controller 170. When the push unit 167 is driven to push the article 180 on the tray 111 to one side. As a result, the article 180 on the tray 111 is separated to one side and enters the sorting box 190.
5 shows an example of the push means 160c, and the present invention is not limited thereto. Therefore, the push means 160c according to the present invention may be modified in any form as long as the article 180 of the tray 111 can be pushed to one side. For example, it may be implemented to push the article 180 to one side from the top or bottom of the tray 111.
6 is a schematic view of an article classification unit according to another embodiment of the present invention.
As illustrated in FIG. 6, the article sorting unit 160 according to another example of the present invention drives a predetermined conveyor to move the article 180 so that the article 180 on the tray 111 is separated from the tray 111. It may also include a conveying means (160d) for. Referring to FIG. 6 (a), the transfer means 160d according to the present invention moves the article 180 perpendicular to the traveling direction of the tray 111 so that the article 180 is separated from the upper surface of the tray 111. Conveyor 169 and a drive unit 169-1 for driving the conveyor 169.
As shown in FIG. 6B, the driver 169-1 drives the conveyor 169 when a predetermined control signal is received from the controller 170. When the conveyor 169 is driven, the article 180 is moved to one side and finally separated to the sorting box 190.
6 shows an example of the conveying means 160d, and the present invention is not limited thereto. Therefore, the conveying means 160d according to the present invention may be various embodiments capable of conveying the article 180 of the tray 111 in one direction.
Meanwhile, in another embodiment of the present invention, the article classification system using RFID may further include an apparatus for verifying the reliability of article classification. To this end, the article sorting system of the present invention includes a conveying conveyor 210 for conveying a sorting box 190 in which the article 180 is sorted, and an article 180 included in the sorting box 190 on the conveying conveyor 210. It may further include another RFID reader 220 for reading the article information of.
In FIG. 7, the conveyer conveyor 210 and the RFID reader 220 are illustrated. Referring to FIG. 7, a portion of the transport conveyor 210 is preferably located below the main conveyor 110. The main conveyor 110 is provided with a space for moving the plurality of sorting boxes 190 located on both sides to the transport conveyor 210. In this case, the sorting box 190 includes a plurality of articles 180 that have been classified. When the sorting box 190 is moved onto the conveying conveyor 210 in operation, the sorting box 190 is transferred to a predetermined place such as an unloading station or a shipping place by the conveying conveyor 210. Here, the sorting box 190 may be moved to the conveying conveyor 210 by an operator or another device.
Another RFID reader 220 formed on an upper portion of the conveying conveyor 210 recognizes the product information on at least one article 180 inside the sorting box 190 conveyed on the conveying conveyor 210. In other words, the RFID tag 181 attached to each of the plurality of articles 180 in the sorting box 190 recognizes various kinds of information of the corresponding articles 180. As a result, it is possible to verify whether the classification of the article is accurate by quickly and accurately recognizing the article information of the article 180 during transfer on the conveying conveyor 210 for the plurality of articles 180 that have been classified in each sorting box 190. Will be.
1 to 7, the operation of the article classification system using RFID according to the present invention will be described in detail.
First, when an operator places at least one article 180 to which an RFID tag 181 is attached, respectively, on an induction conveyor 120 that is driven, the article 180 is connected to the main conveyor by the induction conveyor 120. 110). Preferably it is transferred to a plurality of trays 111 formed on the main conveyor (110). At this time, since the RFID reader 130 is formed on the induction conveyor 120, the RFID reader 130 reads the article information for each article 180 being transferred on the induction conveyor 120. The article information thus read is transmitted to the controller 170 together with the unique number of the RFID reader 130. This makes it possible to read the article information for many articles 180 at once, and to read various article information in a short time. Through this process, the controller 170 can know which article 180 has been read from which RFID reader 130.
Subsequently, when the article 180 is supplied from the induction conveyor 120 to the tray 111 of the main conveyor 110, the unique identifier of the tray 111 to which the article 180 is supplied from the tray recognition unit 140. ID). The ID of the tray thus recognized is transmitted to the controller 170. Here, since the RFID reader 130 and the tray recognition unit 140 are mapped 1: 1, the RFID reader 130, the article 180 reading the article information from the RFID reader 130, and the article 180. ) Is supplied with the ID of the tray 111 and the tray recognition unit 140 that recognizes the ID of the tray 111. Therefore, the control unit 170 can check which tray 111 has an article 180 having what article information.
Subsequently, when the plurality of trays 111 to which the plurality of articles 180 are respectively supplied are transferred by the driving of the main conveyor 110, the movement distance measuring unit 150 measures the movement distance for each tray 111. do. The movement distance value measured as described above is transmitted to the controller 170. Accordingly, the control unit 170 may know which tray 111 is currently carrying which goods 180 and where they are moving.
Accordingly, the control unit 170 may classify the article 180 to classify the article 180 into the sorting box 190 placed at a preset position using the moving distance value of each tray 111 according to a preset article classification criterion. Drive 160. At this time, the controller 170 counts the number of articles 180 classified according to the driving of the article classification unit 160, thereby classifying the corresponding articles 180 accurately and quickly according to each article information (190). ) Can be classified.
Furthermore, when the sorting of the article 180 from the main conveyor 110 to the sorting box 190 is completed, the sorting is completed by the operator or another device to the conveying conveyor 210 under the main conveyor 110. Move the sorting box 190. As a result, a plurality of sorting boxes 190 are transferred to a predetermined place (eg, a loading dock, etc.) by the conveying conveyor 210 which is being driven. At this time, another RFID reader 220 located on the conveying conveyor 210 reads the article information for the plurality of articles 180 in the sorting box 190 being conveyed by the conveying conveyor 210. This is to read the information of each article from the RFID tag 181 attached to each article 180. The article information for each sorting box 190 read as described above is transmitted to the controller 170. The controller 170 may verify the goods classification result by checking the goods classification information for each classification box 190 and the goods information for each classification box 190 transmitted from another RFID reader 220. By using RFID as described above, it is possible to quickly and accurately verify the classification of items for many items, and to secure the reliability of classification for customers.
The drawings and the detailed description of the invention are merely exemplary of the present invention, which are used only for the purpose of describing the present invention, and are used to limit the scope of the present invention as defined in the meaning or claims. no. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.
In general, conveyors are widely used as one of the important facilities in the automation line. These conveyors are recently added with the sorting function of the goods as well as the transport of the goods. In particular, attempts have been made to quickly and accurately classify articles according to the type, number, etc. of the conveyor to meet various demands of demand.
In this respect, the present invention can sort the bulk of the goods conveyed on the conveyor faster and more accurately and automatically, and increase the conveyor conveying speed more quickly. In addition, the present invention is characterized in that it is easy and convenient to automatically recognize the information on a large amount of goods at once without checking the information of the classified items.
Therefore, these advantages and features will make the present invention very useful in various industries for classifying articles using conveyors.
1 is a schematic configuration diagram of an article classification system using RFID according to an embodiment of the present invention.
2 is a diagram schematically illustrating a product classification system using RFID according to an embodiment of the present invention.
3 to 6 is a schematic diagram showing the operation of the article classification unit according to an embodiment of the present invention.
7 is a view schematically showing the configuration of the conveying conveyor and another RFID reader according to an embodiment of the present invention.
 Explanation of symbols on the main parts of the drawings
110: main conveyor 111: tray
112: tray display unit 120: induction conveyor
130,220: RFID reader 140: tray recognition unit
150: moving distance measuring unit 160: article classification unit
170: control unit 180: article
181: RFID tag 190: Classified
210: conveying conveyor

Claims (11)

  1. A main conveyor having a plurality of trays each for transporting articles thereon;
    An induction conveyor for supplying an article with an RFID tag storing information about the article to a tray of the main conveyor;
    An RFID reader that reads an RFID tag attached to an article supplied by the induction conveyor to recognize article information of the corresponding article;
    A tray recognition unit which is mapped 1: 1 to the RFID reader and recognizes the tray when an article read by the RFID reader is supplied on a tray of the main conveyor;
    A moving distance measuring unit measuring a distance traveled by each tray;
    An article sorter which separates the article from the tray so that the article on the moving tray is classified into a sorting box at a preset position; And
    Receives the goods information from the RFID reader and receives a recognition signal of the tray supplied with the goods from the tray recognition unit to confirm the goods supplied by each tray and the goods information, and from the moving distance measuring unit A control unit which receives a movement distance value and controls an operation of the article classification unit to classify a desired article in a classification of a preset position; Article classification system using RFID comprising a.
  2. The method of claim 1,
    A conveying conveyor for transporting the sorting box in which the sorting of the article is completed; And
    Another RFID reader for recognizing article information of the article by reading an RFID tag attached to at least one article included in the sorting box being transported by the conveying conveyor; Item classification system using RFID, characterized in that it further comprises.
  3. The method of claim 2,
    The control unit receives the goods information of the goods included in the sorting box from the another RFID reader, and verifies the goods sorting result in the sorting box by mapping with the goods sorting reference information of the preset sorting box. Goods sorting system.
  4. The method of claim 1,
    And the article classification unit comprises tilting means for tilting the tray from side to side so that the article on the tray is separated from the tray.
  5. The method of claim 1,
    The tray is composed of two separate flat plates rotating at both ends thereof with the rotating shaft, and the article sorting unit includes rotating means for rotating the center of the tray about the rotating shaft of the both ends so that the goods on the tray are separated from the tray. Article classification system using RFID, characterized in that it comprises a.
  6. The method of claim 1,
    And the article sorting unit includes push means for pushing the article on the tray to one side such that the article on the tray is separated from the tray.
  7. The method of claim 1,
    The article classification unit may include a transfer unit capable of transferring the article to one side by using a conveyor that is vertically driven in a traveling direction of the tray so that the article on the tray is separated from the tray. Goods sorting system.
  8. The method according to claim 1 or 2,
    The RFID tag stores information including the style, color, and size of the article.
  9. The method according to claim 1 or 2,
    Each tray is assigned a unique identifier (ID),
    The tray identification unit recognizes a unique identifier (ID) for each tray, the article classification system using RFID.
  10. The method according to claim 1 or 2,
    The control unit sets the classification to classify the goods according to the information including the customer, the quantity, the working date in advance and controls the article classification unit to classify the corresponding article into the classification box. .
  11. The method according to claim 1 or 2,
    And the control unit counts the number of the classified articles in response to the operation control of the article classification unit.
KR20080129504A 2008-12-18 2008-12-18 Article sorting system using rfid KR100997071B1 (en)

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