KR20140014522A - System and method for managing warehouse based on rfid tag information - Google Patents
System and method for managing warehouse based on rfid tag information Download PDFInfo
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- KR20140014522A KR20140014522A KR1020120080677A KR20120080677A KR20140014522A KR 20140014522 A KR20140014522 A KR 20140014522A KR 1020120080677 A KR1020120080677 A KR 1020120080677A KR 20120080677 A KR20120080677 A KR 20120080677A KR 20140014522 A KR20140014522 A KR 20140014522A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
- G06K7/10079—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
- G06K7/10089—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision
- G06K7/10099—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision the directional field being used for pinpointing the location of the record carrier, e.g. for finding or locating an RFID tag amongst a plurality of RFID tags, each RFID tag being associated with an object, e.g. for physically locating the RFID tagged object in a warehouse
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
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Abstract
An RFID based warehouse management system and method are provided. An RFID-based warehouse management system according to an embodiment of the present invention is stored in a predetermined area within a warehouse, and manages warehouse data including a pallet with an RFID tag, the RFID tag information, and the pallet status information. A warehouse server for determining the location of the pallet in the warehouse based on the warehouse data, and an RFID reader for repeatedly reading the RFID tag information of the pallet in a predetermined area of the warehouse in a predetermined time unit and transmitting the RFID tag information to the warehouse server. Wherein, the warehouse server determines the state information of the pallet according to the displacement in the warehouse of the pallet detected by the RFID reader.
Description
The present invention relates to an RFID-based warehouse management system and method, and more particularly, to an RFID-based warehouse management system and method capable of accurately determining pallet status information in a warehouse.
In various fields, a system (hereinafter, referred to as a business integrated management system) that manages various tasks online or offline through a predetermined terminal such as an intranet or enterprise resource planning (Enterprise Resource Planning) has been applied. In the past, the integrated business management system provided only limited functions such as an electronic bulletin board, electronic payment, or e-mail, but recently, it supports various functions related to various tasks, and all the business is a paperless business integrated management system. It can be processed only.
As an example of a business integration management system, a logistics management system has been proposed that provides various functions related to logistics operations. Logistics management system supports transport management system that manages the rate and route of transportation required to move the goods to the desired location, and the receipt, release and inventory management of warehouses that store the goods. Various subsystems such as Warehouse Management System, Contract Management System that manages contracts related to logistics storage or supply, and Billing Management System that calculates the costs incurred by logistics business It may include.
In the warehouse management system that supports the overall work of the warehouse among the above systems, it is necessary to keep the amount of inventory in the warehouse constant and to accurately identify the location of the inventory in order to maintain a smooth flow of logistics. It is necessary to keep more than a certain amount of inventory stored and stored in the warehouse, in which case it is necessary to efficiently utilize the space within the limited warehouse and identify which pallets or boxes exist in specific areas of the warehouse. In particular, since the storage and shipping operations are performed from time to time in the warehouse, productivity or efficiency may vary depending on the amount of stock and the arrangement and location of the stock.
In the conventional case, in order to effectively use the space in the warehouse, the worker manually grasps the inventory in the warehouse, and if there is not enough stock in the corresponding location, carries the inventory from another location and replenishes the corresponding location. It became.
In such a case, it is difficult to know the amount of inventory in a timely manner, and if there is not enough stock at that location at the time of delivery, the goods are moved to another location where the inventory is stored, or if there is no stock at another location. Because it can not be performed smoothly, it takes a lot of time and low efficiency.
In order to solve this problem, some conventional technologies have been proposed to manage the state information of pallets using RFID, but it is difficult to accurately determine the position of pallets due to the limitation of current RFID accuracy.
The technical problem to be solved by the present invention is to provide an RFID-based warehouse management system and method that can effectively utilize the space in the warehouse.
Another technical problem to be solved by the present invention is to provide an RFID-based warehouse management system and method that can grasp the status information of the pallet in the warehouse and maintain the pallet location information in the warehouse with high reliability.
The technical objects of the present invention are not limited to the above-mentioned technical problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.
RFID-based warehouse management system according to an embodiment of the present invention for achieving the technical problem, is placed in a predetermined area in the warehouse, including a pallet with an RFID tag, the RFID tag information and the pallet status information The warehouse server manages warehouse data, and determines the location of the pallet in the warehouse based on the warehouse data, and repeatedly reads RFID tag information of the pallet in a predetermined area of the warehouse in a predetermined unit of time. Including an RFID reader for transmitting to, the warehouse server determines the state information of the pallet according to the displacement in the warehouse of the pallet detected by the RFID reader.
RFID-based warehouse management system according to another embodiment of the present invention for achieving the above technical problem, is placed in a predetermined area in the warehouse, including a pallet with an RFID tag, the RFID tag information and the pallet status information A warehouse management server managing warehouse data, a location information server connected to the warehouse management server, determining a location of the pallet in the warehouse based on the warehouse data, and RFID tag information of the pallet within a predetermined area of the warehouse; It includes an RFID reader for repeatedly reading a predetermined time unit and transmits to the location information server, wherein the location information server determines the state information of the pallet according to the displacement in the warehouse of the pallet detected by the RFID reader do.
RFID based warehouse management method according to an embodiment of the present invention for achieving the technical problem, the step of placing a pallet with an RFID tag attached to a predetermined area in a warehouse equipped with an RFID reader, the RFID in the RFID reader Reading a tag, and determining a location of the pallet based on the reading result, wherein the RFID reader comprises: a first RFID reader scanning a first zone in the warehouse, and a second in the warehouse And a second RFID reader to scan the zone.
The details of other embodiments are included in the detailed description and drawings.
According to the embodiments of the present invention as described above, it is possible to provide an RFID-based warehouse management system and method that can efficiently utilize the space in the warehouse.
In addition, it is possible to provide a RFID-based warehouse management system and method that can grasp the status information of the pallet in the warehouse to maintain the pallet location information in the warehouse with high reliability.
In other words, by managing the pallet status in the warehouse and determining the pallet status according to the RFID tag recognition pattern, pallet status management with improved reliability becomes possible.
The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.
1 is a diagram illustrating an RFID-based warehouse management system according to an embodiment of the present invention.
2 is a view schematically showing the configuration of the warehouse of FIG.
3 is a diagram illustrating a configuration in which pallets are stacked in the warehouse of FIG. 2.
FIG. 4 is a diagram illustrating an RFID system structure for recognizing the position of the stacked pallet of FIG. 3.
5 to 10 show various state changes of the stacked pallet of FIG.
FIG. 11 is a diagram illustrating an association between palette state changes of FIGS. 5 to 10.
12 is a diagram illustrating an RFID-based warehouse management system according to another embodiment of the present invention.
13 is a flowchart illustrating a method of managing warehouse based on RFID according to an embodiment of the present invention.
14 is a flowchart specifically illustrating a pallet positioning process of FIG. 13.
Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.
Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.
Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.
Hereinafter, an RFID-based warehouse management system according to embodiments of the present invention will be described with reference to FIGS. 1 to 4. 1 is a view showing an RFID-based warehouse management system according to an embodiment of the present invention, Figure 2 is a view schematically showing the configuration of the warehouse of Figure 1, Figure 3 is a pallet stacked in the warehouse of Figure 2 4 is a diagram showing the configuration, and FIG. 4 is a diagram showing the structure of the RFID system for recognizing the position of the stacked pallet of FIG.
Referring to FIG. 1, in an RFID-based warehouse management system according to an embodiment of the present invention, a
The RFID-based warehouse management system according to the present embodiment may include a
Referring to FIG. 2, the
In addition, each zone of the
In some embodiments, the plurality of zones of the
Each zone of the
As shown in FIG. 3,
The plurality of
Referring to Fig. 4, an RFID system structure for recognizing the position of a stacked pallet is shown. In the illustrated example, it is assumed that there is a first zone 100_1 and a second zone 100_2 in the
Each zone of the
The
The information of the
The
Specifically, the state information and position determination of the
In addition, when the
Meanwhile, in some embodiments, the scanable recognition ranges of the first RFID reader and the second RFID reader may overlap, but are not limited thereto, and separate or physically separate the first and second zones 100_1 and 100_2. It is possible to limit only one RFID reader to operate in a zone at the same time.
As described above, the
The terminal (not shown) may communicate with the
5 to 11, a moving pattern of the pallet and a method of determining a state accordingly will be described. 5 to 10 show various state changes of the stacked pallet of FIG. 3, and FIG. 11 shows the relationship between the pallet state changes of FIGS.
The state information of the
Referring to FIG. 5, the initial state before the
Referring to FIG. 6, a state in which an arrangement of the
Referring to FIG. 7, a shipment state in which the
Referring to Figure 8, the
Referring to FIG. 9, a moving state in which the
Referring to FIG. 10, a passing state in which the
Referring to FIG. 11, the relationship between state information of the
Hereinafter, an RFID-based warehouse management system according to another embodiment of the present invention will be described with reference to FIG. 12. 12 is a diagram illustrating an RFID-based warehouse management system according to another embodiment of the present invention.
Referring to FIG. 12, the RFID-based warehouse management system according to the present embodiment is placed in a predetermined area within a
According to this embodiment, unlike the previous embodiment, not all data processing and location determination is performed in the warehouse server, data management is performed in the
When the
To prevent this, a series of operations related to location information and status information by separating the
In addition, the rest of the configuration may be substantially the same as described in the previous embodiment.
Hereinafter, an RFID-based warehouse management method according to an embodiment of the present invention will be described with reference to FIGS. 13 and 14. FIG. 13 is a flowchart illustrating an RFID based warehouse management method according to an embodiment of the present invention, and FIG. 14 is a flowchart illustrating a pallet positioning process of FIG. 13 in detail.
RFID based warehouse management method according to the present embodiment, the step of placing the pallet with the RFID tag attached to a predetermined area in the warehouse equipped with the RFID reader (S110), the step of reading the RFID tag in the RFID reader (S120), And determining the position of the pallet based on the reading result (S130), wherein the RFID reader comprises: a first RFID reader scanning a first zone in the warehouse, and a second RFID reader scanning a second zone in the warehouse It may include.
Referring to Fig. 14, a pallet positioning and state determination process is shown.
First, the RFID tag of the pallet is read by the RFID reader (S210). The reading result is transmitted to the server, and the server determines the state of the pallet in consideration of the position information of the pallet included in the RFID tag.
In detail, when the pallet is detected by the second RFID reader within the first time interval after the pallet is detected by the first RFID reader (S220), the state information of the pallet may be set to the moving state (S230).
In addition, when the pallet is detected by the first RFID reader and the second RFID reader at the same time (S240), it is possible to set the status information of the pallet as a stale state (S250).
In addition, when the pallet is detected by the first RFID reader or the second RFID reader and the undetected state is repeated a predetermined number of times (S260), the state information of the pallet may be set to a passing state (S270). If it is not the movement state, stale state, and pass state, the state information may be modified to one of an initial state, an arrival state, and a shipment state in consideration of a change in the position of the pallet according to the read result (S280).
In addition, when there is no change in the position of the pallet as a result of reading the RFID tag, the existing state information may be maintained as it is.
As described above, according to the embodiments of the present invention, by grasping the status information of the pallets in the warehouse, it is possible to maintain the pallet position information in the warehouse with high reliability, to refine the pallet status in the warehouse, and the pallet status according to the RFID tag recognition pattern. By determining this, the pallet state management with improved reliability is possible.
In this way, when the status of the pallet is determined, an appropriate instruction can be transmitted to the terminal and the like in response to this, and prompt business processing in the warehouse can be performed.
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.
100: warehouse
110: pallet
120: RFID tag
130: RFID reader
200: warehouse server
300: warehouse management server
400: location information server
Claims (18)
A warehouse server managing warehouse data including the RFID tag information and pallet status information and determining a location of the pallet within the warehouse based on the warehouse data; And
Including a RFID reader for reading the RFID tag information of the pallet in a predetermined area of the warehouse in a predetermined time unit and transmits it to the warehouse server,
The warehouse server determines the status information of the pallet according to the displacement in the warehouse of the pallet detected by the RFID reader, RFID-based warehouse management system.
The state information of the palette is
An initial state before the pallet is placed in the predetermined area,
A movement state in which the pallet moves from the predetermined zone to another zone,
A passage state in which the pallet passes through a passage between a plurality of zones,
The pallet is separated from the predetermined zone and exists between the other zones;
A shipment state in which the pallet is separated from the predetermined area;
RFID-based warehouse management system comprising at least one of the state of arrival in which the pallet is arranged in the predetermined area.
The RFID reader includes a first RFID reader scanning a first zone in the warehouse and a second RFID reader scanning a second zone in the warehouse.
The scan range of the first RFID reader and the second RFID reader partially overlap, RFID-based warehouse management system.
And when the pallet is detected by the second RFID reader within a first time interval after the pallet is detected by the first RFID reader, the warehouse server sets state information of the pallet to a moving state.
And when the pallet is detected by the first RFID reader and the second RFID reader at the same time, the warehouse server sets the state information of the pallet to a stale state.
The pallet is detected by the first RFID reader or the second RFID reader. If the undetected state is repeated a predetermined number or more times, the warehouse server sets the state information of the pallet to a pass state. system.
A warehouse management server for managing warehouse data including the RFID tag information and the pallet state information;
A location information server connected to the warehouse management server and determining a location of the pallet in the warehouse based on the warehouse data; And
Including a RFID reader for reading the RFID tag information of the pallet in a predetermined area of the warehouse for a predetermined time unit and transmits it to the location information server,
The location information server determines the state information of the pallet in accordance with the displacement in the warehouse of the pallet detected by the RFID reader, RFID-based warehouse management system.
The state information of the palette is
An initial state before the pallet is placed in the predetermined area,
A movement state in which the pallet moves from the predetermined zone to another zone,
A passage state in which the pallet passes through a passage between a plurality of zones,
The pallet is separated from the predetermined zone and exists between the other zones;
A shipment state in which the pallet is separated from the predetermined area;
RFID-based warehouse management system comprising at least one of the state of arrival in which the pallet is arranged in the predetermined area.
The RFID reader includes a first RFID reader scanning a first zone in the warehouse and a second RFID reader scanning a second zone in the warehouse.
The scan range of the first RFID reader and the second RFID reader partially overlap, RFID-based warehouse management system.
When the pallet is detected by the second RFID reader within a first time interval after the pallet is detected by the first RFID reader, the location information server sets the status information of the pallet to a moving state, RFID-based warehouse management system .
When the pallet is detected by the first RFID reader and the second RFID reader at the same time, the location information server sets the status information of the pallet to the stabilization state, RFID-based warehouse management system.
The pallet is detected by the first RFID reader or the second RFID reader. If the undetected state is repeated more than a predetermined number of times, the location information server sets the state information of the pallet to a passing state. Management system.
Reading the RFID tag from the RFID reader; And
Determining the position of the pallet based on the reading result,
The RFID reader includes a first RFID reader scanning a first zone in the warehouse, and a second RFID reader scanning a second zone in the warehouse.
When the pallet is detected by the second RFID reader within a first time interval after the pallet is detected by the first RFID reader, setting the status information of the pallet to a moving state. .
When the pallet is detected by the first RFID reader and the second RFID reader at the same time, further comprising the step of setting the state information of the pallet to the stale state, RFID-based warehouse management method.
If the pallet is detected by the first RFID reader or the second RFID reader and the undetected state is repeated more than a predetermined number of times, setting the state information of the pallet to pass state, RFID-based warehouse How to manage.
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KR1020120080677A KR20140014522A (en) | 2012-07-24 | 2012-07-24 | System and method for managing warehouse based on rfid tag information |
PCT/KR2013/004590 WO2014017738A1 (en) | 2012-07-24 | 2013-05-27 | Rfid-based warehouse management system and rfid-based warehouse management method |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101517842B1 (en) * | 2014-05-09 | 2015-05-07 | 한국로봇융합연구원 | Auto Apparatus and Method for Tracking and Managing Logistics Deposited Specific Space |
CN105825466A (en) * | 2016-04-29 | 2016-08-03 | 济南金钟电子衡器股份有限公司 | Intelligent warehouse management system |
WO2019031758A1 (en) * | 2017-08-11 | 2019-02-14 | 주식회사 유시스 | Location information-based real-time material and inventory management method using beacon, and system for performing same |
KR20220012491A (en) * | 2020-07-22 | 2022-02-04 | 동국대학교 산학협력단 | Device and method for detecting movement and direction of tagged products |
-
2012
- 2012-07-24 KR KR1020120080677A patent/KR20140014522A/en active Search and Examination
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101517842B1 (en) * | 2014-05-09 | 2015-05-07 | 한국로봇융합연구원 | Auto Apparatus and Method for Tracking and Managing Logistics Deposited Specific Space |
CN105825466A (en) * | 2016-04-29 | 2016-08-03 | 济南金钟电子衡器股份有限公司 | Intelligent warehouse management system |
WO2019031758A1 (en) * | 2017-08-11 | 2019-02-14 | 주식회사 유시스 | Location information-based real-time material and inventory management method using beacon, and system for performing same |
CN110998621A (en) * | 2017-08-11 | 2020-04-10 | 优希思株式会社 | Method for real-time material and inventory management based on location information using beacons and system for performing the same |
KR20220012491A (en) * | 2020-07-22 | 2022-02-04 | 동국대학교 산학협력단 | Device and method for detecting movement and direction of tagged products |
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