JP4503342B2 - Goods management system - Google Patents

Description

  The present invention relates to an article management system, and more particularly to an article management system in which inventory information obtained when inventory of an article is performed is recorded on an RFID tag attached to the article to provide various conveniences. It is.

Conventionally, in a company, a store, etc., in order to check whether the assets, materials, products, products, etc. that each owns and manages match the quantity on the book, regular inventory is performed. The purpose of this inventory is to check whether assets, commodities, products, etc. have been taken out illegally or stolen and lost. For example, in a company or the like, periodic inventory is important for checking whether files such as documents as well as products are stored in a predetermined holder. In order to automatically manage these files, in recent years, there has been an active movement of attaching an RFID tag to each file and recording file management information on the RFID tag to automate file management. However, if these file managements are to be carried out reliably, a great deal of time and cost will be required until development. Therefore, in reality, a plurality of files are stored in one holder, and the RFID tag is attached to the holder, but the content file is often not attached with the RFID tag, and the contents of the file are updated. Or inventory is needed to check periodically that files have been extracted. However, in the inventory in the conventional file management system, the contents in the holder are only checked manually, and the management record of the inventory is not recorded on the RFID tag attached to the holder using a reader / writer. .
As a conventional technique for managing inventory, Japanese Patent Laid-Open No. 2002-202722 discloses that a price tag on which a product name and a price of a product are printed and two inventory management tags on which a barcode indicating the type of the product is printed. A tag is configured and attached to each product. When performing inventory work, the inventory management tag of the tag attached to each product is manually cut out. By visually recognizing whether inventory management tags have been cut off, it is possible to easily determine whether the inventory has been completed, and counting the inventory management tags that have been cut out for each type of product. Thus, a technique that can determine the quantity for each product is disclosed.
JP 2002-202722 A

However, in the inventory in the conventional file management system, since the inventory management record is not recorded in the RFID tag attached to the holder, the presence of the lost article can be confirmed by the inventory, but in order to find the lost article I couldn't determine how long I should go back.
Also, the technology disclosed in Japanese Patent Application Laid-Open No. 2002-202722 is such that a price tag on which a product name and a price of a product are printed and two inventory management tags on which a barcode indicating the type of the product is printed are integrated. The configured tag is attached to the product, and if the product exists at the time of inventory, the inventory management tag is cut out from the tag. In other words, the inventory execution record remains in the tag, but it is not possible to determine when the inventory has been performed simply by looking at the tag.
In view of such a problem, the present invention makes it possible to specify the retroactive period of lost articles discovered at the time of inventory by recording the inventory execution information in the management information of the RFID tag attached to the articles, and efficient inventory It is an object to provide an article management system that can be implemented.

In order to solve this problem, the present invention provides an RFID tag that is attached to an article and stores management information related to the article, and a reader / writer that reads and writes the management information from and to the RFID tag. Control means for controlling the reader / writer, and when the inventory of the article is performed based on the management information recorded in the RFID tag attached to the article, the control means displays the inventory information of the article. When the reader / writer is controlled and recorded as a part of management information recorded in the RFID tag, and an ID code given to an authorized user is input and the ID code is authenticated, the inventory The information area is permitted to read and write information .
Conventionally, RFID tags are attached to items such as various products and materials held and stored in companies, retail stores, etc., and the items are managed. Management information for identifying an article to which is attached is recorded. However, when stocktaking has been carried out in the past, recording information such as the date and time of stocktaking has been recorded on other recording media attached to shelves, holders, etc. for storing goods, It was not recorded on the attached RFID tag. For this reason, it is possible to read the management information of the article from the RFID tag at the time of the inventory, but it is impossible to know information relating to the inventory history such as when the inventory was performed. Therefore, in the present invention, when inventory is carried out, inventory information of the article is recorded on the RFID tag, and the inventory information is read at the next inventory so that the lost article can be traced back. . In the inventory information area, important information related to inventory is recorded. Therefore, if information in this area is read and written without permission, accurate inventory information may not be obtained. Therefore, in the present invention, when reading and writing the information in the inventory information area, reading and writing is possible only when a specific ID code is input and the ID code is authenticated.
According to this invention, when the inventory of the article is implemented based on the management information recorded on the RFID tag attached to the article, the control means controls the reader / writer with the inventory information relating to the inventory history of the article. Therefore, the lost article can be retroactively read by reading the inventory information at the next inventory. In addition, when the input ID code is authenticated, the control unit permits the information reading / writing operation to the inventory information area, so that access to the inventory information area other than the authorized person can be restricted.

According to a second aspect of the present invention, the control means records, as the inventory information, at least date information on the day when the article is invented and date information closest to the date information on the day.
As a result of inventory, when the presence of a lost article is found, the most efficient way to retroactively identify the time when the lost article was lost is the more efficient the shorter the retroactive period. Therefore, in the present invention, the date information on the day when the inventory is carried out and the date information closest to the date information on the day are recorded as the inventory information.
According to this invention, the control means records at least the date information on the day of the inventory of the article and the date information closest to the date information of the day as the inventory information. In this case, it is possible to most efficiently perform the work of retroactively specifying the time when the lost article is lost.

The third aspect of the present invention further includes a fixture having an antenna for storing the article in a lump and transmitting and receiving radio waves for reading and writing management information recorded in the RFID tag, and the reader / writer includes the antenna. If the latest date information recorded in the inventory information is different from the date information on the day of the inventory, the article in which the latest date information is recorded is read. It is detected that inventory is not carried out.
The present invention is an invention in the case of further comprising a fixture having an antenna for reading and writing management information, and storing articles in the fixture. That is, when performing inventory, the article is once taken out from the fixture and the contents are confirmed. When the inventory is completed, the inventory implementation date information is recorded on the RFID tag and returned to the fixture. After these series of operations are completed and all items are returned to the fixture, the date information of the reader / writer is updated and compared with the date information of the items in the fixture. In this case, it can be determined that the inventory has not been completed.
According to this invention, it further comprises a fixture having an antenna for storing articles in a lump and transmitting and receiving radio waves for reading and writing management information recorded in the RFID tag, and the reader / writer is provided in the fixture via the antenna. If the latest date information recorded in the inventory information is different from the date information on the inventory date, the article in which the latest date information is recorded is detected as not being invented. Articles that have not been inventoried can be found in advance.

A fourth aspect of the present invention further includes an inventory information RFID tag for separately recording the inventory information, wherein information relating to an article is recorded in the RFID tag, and a communication method between the RFID tag and the inventory information RFID tag is set respectively. It is characterized by different communication methods.
If inventory information and article information with different security levels are recorded on the same RFID tag, it cannot be said that there is no risk of falsification of inventory information with a high security level because the communication method is the same. Therefore, in the present invention, in order to further increase the security level, RFID tags for recording inventory information and article information are separated, and the communication methods of the respective RFID tags are made different.
According to this invention, the inventory information RFID tag for separately recording the inventory information is further provided, the information related to the article is recorded in the RFID tag, and the communication method between the RFID tag and the inventory information RFID tag is different. Since the method is adopted, the security level for inventory information can be further increased.

According to the first aspect of the present invention, when the inventory of the article is performed based on the management information recorded on the RFID tag attached to the article, the control means displays the inventory information relating to the inventory history of the article as a reader / writer. Is recorded as a part of the management information recorded in the RFID tag, so that the lost article can be efficiently retroactively read by reading the inventory information at the next inventory. In addition, when the input ID code is authenticated, the control unit permits the information reading / writing operation to the inventory information area, so that access to the inventory information area other than the authorized person can be restricted.
Further, in claim 2 , since the control means records at least the date information of the day of the inventory of the article and the date information closest to the date information of the day as inventory information, there is a lost article as a result of the inventory. In this case, it is possible to most efficiently perform the work of retroactively specifying the time when the lost article is lost.
According to a third aspect of the present invention , the apparatus further comprises a fixture having an antenna for storing articles in a lump and transmitting and receiving radio waves for reading and writing management information recorded in the RFID tag, and the reader / writer is provided in the fixture via the antenna. If the latest date information recorded in the inventory information is different from the date information on the inventory date, the article in which the latest date information is recorded is detected as not being invented. Articles that have not been inventoried can be found in advance.
According to a fourth aspect of the present invention , the information processing apparatus further includes an inventory information RFID tag for separately recording inventory information. The RFID tag records information about an article, and communication methods of the RFID tag and the inventory information RFID tag are different from each other. Since the method is adopted, the security level for inventory information can be further increased.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
FIG. 1 is a block diagram showing a configuration of an RFID tag reader / writer according to an embodiment of the present invention. The RFID tag reader / writer 100 transmits / receives data to / from an external computer 50 by transmitting / receiving data to / from an external reader / writer 100 and controlling the entire system. Device 1, control device 2 that controls the operation of reader / writer 100 as a whole, firmware that records the procedure for operating control device 2, memory device 3 that stores the read data, and data from control device 2 as a carrier wave A modulator 4 that carries and modulates, an input device 5 that inputs an operation command, a display device 6 that displays information controlled by the control device 2, a power supply signal that is an AC signal from the control device 2, and modulation A power amplifier 7 for amplifying the write command from the device 4 and a binary signal from the carrier wave received from the loop antenna 9. A detection demodulator 8 for converting the data is configured by a loop antenna 9 for transmission and reception of electric power carrier wave and data with the IC tag (not shown).

Next, before describing the operation of the reader / writer 100 according to this configuration, the configuration of the paired RFID tags will be described first. FIG. 2 is a block diagram showing the configuration of the RFID tag according to the embodiment of the present invention. The RFID tag 200 of the present embodiment receives a loop antenna 20 that transmits and receives data using a power carrier wave from the reader / writer 100, a transmission / reception circuit 21 that generates a write command read command, and a power carrier wave from the loop antenna 20. A power generation circuit 22 that rectifies and converts it into DC power, a memory device 23 that manages storage of control firmware and data, a modulator 24 that modulates a transmission command from the control circuit 26 with a carrier wave, It comprises a detector 25 for converting carrier wave data from the transmission / reception circuit 21 into binary data, and a control circuit 26 for controlling the entire operation of the RFID tag 200.
Next, each operation will be described with reference to FIGS. 1 and 2 together. When a power supply (not shown) is turned on, the reader / writer 100 starts an operation according to a program stored in the memory device 3 after the initial operation of the control device 2. First, initialization is performed. Next, the control device 2 alternately transmits a power supply signal supplied to the RFID tag 200 and a polling signal from the power amplifier 7. The signal is radiated to the outside from the loop antenna 9 as an electromagnetic wave. Next, when the RFID tag 200 comes close to the reader / writer 100, the loop antenna 20 receives the power supply signal, rectifies the carrier wave by the power generation circuit 22 and converts it into DC power, and all the circuits in the tag To supply. When power is supplied and the control circuit 26 is driven, control is started in accordance with a program stored in the memory device 23.
Next, the control circuit 26 first demodulates the command from the transmission / reception circuit 21 by the detector 25, converts it to a binary signal, and analyzes the command. As a result, when it is recognized that it is called, the response is modulated by the modulator 24 and transmitted from the loop antenna 20 via the transmission / reception circuit 21. The reader / writer 100 receives this response with the loop antenna 9, converts it into a binary code with the detector demodulator 8, analyzes it with the control circuit 2, and recognizes that the RFID tag 200 is a tag conforming to the standard. Thereby, polling is performed between the reader / writer 100 and the RFID tag 200 thereafter.

FIG. 3 is a diagram showing the relationship between the holder and the RFID tag used in this embodiment. In FIG. 3A, for example, a name tag 32 on which the name of the holder 30 is written is pasted on the front surface of the holder 30 that stores the document 31 so that it can be visually recognized. An RFID tag 200 for recording information is attached. FIG. 3B is an example in which the RFID tag 200 a is also attached to the document 31. Of course, management information for each document is recorded in the RFID tag 200a. Thus, the inventory of the holder and the contents of the holder can be collectively managed by a reader / writer that reads and writes information of the RFID tag in a lump. In FIG. 3C, for example, a name tag 32 on which the name of the holder 30 is entered is attached to the front surface of the holder 30 for storing the document 31 so that the name can be visually recognized. The RFID tag 200 for recording only article information (details will be described later) in the management information and the RFID tag 201 for recording only inventory information (details will be described later) in the management information are attached. The security level of the inventory information can be further increased by changing the communication method of both RFID tags.
FIG. 4 is a configuration diagram of the article management system according to the embodiment of the present invention. The article management system 300 includes a storage shelf (furniture) 40 having an antenna 9 for reading and writing management information recorded on the RFID tag 200 attached to the back of the holder 30, and management information for the RFID tag 200. The reader / writer 100 for reading / writing and a PC (control means) 50 for controlling the reader / writer 100 are configured. The antennas 9 and 9a provided in the storage shelf 40 and the reader / writer 100 are connected by a cable 44. Has been. In this example, the plurality of holders 30 are housed in the upper part of a shelf 41 that separates the upper and lower sides of the storage shelf 40, and information recorded on the RFID tag 200 attached to the rear surface of the holder 30 is provided on the rear surface of the storage shelf 40. The antenna 9 is configured to read. A plurality of files 43 are stored in the lower part. An RFID tag (not shown) is attached to the side surface of the file 43 so that information can be read and written by the antenna 9a. Further, the door 46 can be locked and unlocked with a key 46.

Next, the general operation of inventory according to the article management system 300 of the present invention shown in FIG. 4 will be described with reference to FIG. In this description, a case will be described in which a document stored in the holder 30 and not attached with an RFID tag is inventoried. FIG. 5 is a diagram in which the holder 30 (in this example, the holder No. 1 and the holder No. 2) is taken out from the storage shelf 40 and the management information recorded on the RFID tag 200 is read by the handy type reader / writer 53 in order to carry out inventory. It is. A list of documents stored in the holder No. 1 is displayed on the display unit 51 of the reader / writer 53. The person in charge of inventory checking the contents document 31 while looking at the list. As a result, if the contents of the list match the contents document 31, the inventory execution date is input from the keyboard 52 of the reader / writer 53, and the inventory execution date is recorded in the RFID tag 200. Note that the name of the inventor is recorded by inputting an ID code described later. If the contents stored in the list and the document stored in the holder No. 1 do not match, the previous inventory date recorded in the RFID tag 200 is displayed on the display unit 51 of the reader / writer 53, and lost based on the contents. Pursuing whereabouts and whereabouts of completed documents. As described above, when the inventory of all documents in the storage shelf 40 is completed in the same manner for the holder No. 2, the door 45 of the storage shelf 40 is closed and the inventory completion date and the inventory execution date are updated from the PC 50. As a result, the reader / writer 100 collectively reads the information of the RFID tags attached to all the holders 30 and the files 43 from the antennas 9 and 9 a of the storage shelf 40. As a result, if there is a holder 30 and a file 43 in which an inventory execution date different from the inventory execution date updated by the PC 50 exists, the holder 30 is notified of it. As a result, the inventory taker can take it out of the storage shelf 40 and recheck it.
In FIG. 5, the management information recorded on the RFID tag 200 is read and written by the handy type reader / writer 53. However, the management information may be read in advance by the reader / writer 100 and displayed on the display unit of the PC 50. Further, management information may be transferred from the PC 50 to the reader / writer 53 based on the holder No. recorded on the RFID tag 200 read by the reader / writer 53. Further, the inventory date is entered from the keyboard 52 of the reader / writer 53 and the inventory date and the name of the person in charge are recorded on the RFID tag 200. However, the holder 30 is returned to the storage shelf 40 and the inventory is performed from the PC 50. The date may be input and recorded by the reader / writer 100.

FIG. 6 is a diagram showing the contents of the memory area of the RFID tag recorded by the article management system of the present invention. This memory is roughly divided into two areas. One is an inventory information area 65, which is an area accessible only by a specific inventory executor, and the other is a user area 67 accessible by anyone. The inventory information area 65 includes an inventory execution date 60, an inventory execution time 61, and an inventory execution person 62. The user area 67 includes a holder number 66, a holder name 68, an inventory execution person name 69, and a document name 63. The inventory execution time 61 may be omitted.
For example, a case where the inventory is implemented on September 29, 2003 will be described. In the stocktaking information area 65 of the memory, the date of carrying out “2003.3.30” is recorded as the previous stocktaking execution date 60, and the time when it is completed or started at “13:15” is recorded as the stocktaking execution time 61. It is recorded that “ABC” was in charge of the inventory execution person in charge 62 at that time. In the user area 67, “holder No. 1” is recorded as the holder number 66, “XXX” is recorded as the holder name 68, and “ABC” is recorded as the inventory execution person name 69, and is stored in the holder No. 1. "A, b, c, d, e, f" is recorded as the document name 63 being recorded. As a result of inventory taking on September 29, 2003, if all the document names “a, b, c, d, e, f” stored in the holder No. 1 exist, the recorded contents in the user area 67 remain as they are. The updated date is recorded as “2003.29.29” as the inventory execution date 60, and the time when it is completed or started as “13:05” is recorded as the inventory execution time 61. 62 records that ABC is in charge.

FIG. 7 is a diagram in which the contents of the memory are arranged in time series for each holder for the sake of convenience in order to explain the status of the inventory in more detail. First, as shown in FIG. 7A, in the holder No. 1, items of an inventory execution date, an inventory execution time, an inventory execution person in charge, and a document name are displayed in a column 70. For example, in the column 71, the date of carrying out “2003.3.30” is recorded in the inventory execution date, and the time of completion or start at “13:15” is recorded in the inventory execution time. The person in charge of “ABC” is recorded, and “a, b, c, d, e, f” is recorded as the document name. When the next inventory is carried out, the date 722003.29 is recorded as the inventory implementation date at 72, and the time when the inventory was completed or started at 13:05 is recorded as the inventory implementation time. It is recorded that “ABC” is in charge of the person in charge of taking inventory, and “a, b, c, d, e, f” is recorded as the document name. This indicates that it is not different from the result of the previous inventory, and that the inventory is OK. Further, when the next inventory is executed, the date of the execution of “2004.4.1” is recorded in the reference 73 as the date of the execution of the inventory, and the time of completion or start at “14:30” is recorded as the inventory execution time. It is recorded that “BCA” is in charge of the person in charge of taking inventory, and “a, b, d, e, f” is recorded as the document name. As a result of taking an inventory based on the result of the previous inventory, it was discovered that the document “c” was lost, and the person in charge of the previous inventory was asked to “ABC”. In this example, “a, b, d, e, f” must be updated.
Similarly, as shown in FIG. 7B, in the holder No. 2, items of inventory execution date, inventory execution time, inventory execution person in charge, and document name are displayed in the column 74. For example, in column 75, the date of execution of “2003.3.30” is recorded in the inventory execution date, and the time of completion or start at “13:50” is recorded in the inventory execution time. The person in charge of “ABC” is recorded, and “j, k, m” is recorded as the document name. When the next inventory is carried out, the date 762003.29 was recorded as the inventory implementation date at 76, and the time when the inventory was completed or started at 13:55 is recorded as the inventory implementation time. It is recorded that “ABC” is in charge of the person in charge of taking inventory, and “j, k, m” is recorded as the document name. This indicates that it is not different from the result of the previous inventory, and that the inventory is OK. In addition, when the next inventory is performed, the date of execution of “2004.4.1” is recorded in the inventory execution date at 77, and the time when the inventory was completed or started at “15:05” is recorded as the inventory execution time, It is recorded that “BCA” is in charge of the person in charge of taking inventory, and “j, k, m” is recorded as the document name. This indicates that it is not different from the result of the previous inventory, and that the inventory is OK.

  FIG. 8 is a diagram for explaining the effect of inventory in the article management system of the present invention in comparison with the prior art. In this example, a case where inventory is performed four times is described. In the conventional case, if the result is OK from inventory 1 to inventory 3 and it is found that the item is lost when it is inventory 4, the previous inventory date is not recorded in the RFID tag of the item. In order to trace the whereabouts, whereabouts, etc. of the lost items, the inventory must be traced back from inventory 4 to inventory 1. For example, if the inventory interval is once every six months, it must be traced back to one and a half years ago. On the other hand, in the case of the present invention, if the result is OK from inventory 1 to inventory 3 and it is found that the article is lost when it is inventory 4, the previous inventory date is recorded in the RFID tag of the article. Therefore, in order to pursue the whereabouts of the lost article, it is only necessary to go back from the inventory 4 to the previous inventory 3. For example, if the inventory interval is once every six months, it may be traced back to six months. As described above, in the case of the present invention, it is possible to pursue the whereabouts of lost articles by always going back to the latest inventory date.

  FIG. 9 is a flowchart for explaining the inventory execution operation by the article management system of the present invention. In this description, a case will be described in which a document stored in the holder 30 and not attached with an RFID tag is inventoried. First, in order to carry out inventory, the holder 30 (in this example, holder No. 1 and holder No. 2) is taken out from the storage shelf 40, and an administrator ID is input from the keyboard 52 of the handy type reader / writer 53 (S1). In addition to the above, the method for inputting the manager ID can be combined with reading of a personal identification number or a manager ID card in order to specify the manager. As a result, the reader / writer 53 becomes operable (S2). Next, the reader / writer 53 is brought close to the RFID tag 200 (S3), the document name recorded on the RFID tag 200 is read, and a list of documents stored in the holder No. 1 is displayed on the display unit 51 of the reader / writer 53. (S5). The person in charge of inventory checking the contents document 31 while looking at the list, and as a result, if the contents of the list coincide with the name of the document stored in the contents (YES route in S6), the process proceeds to step S12. The inventory execution date and the person in charge are input from the keyboard 52 of the reader / writer 53, and the inventory execution date and the person in charge are recorded in the inventory information area of the RFID tag 200 (S12). If the list contents and the document stored in the holder No. 1 do not match in step S6 (NO route in S6), the previous inventory execution date recorded in the RFID tag 200 is displayed on the display unit 51 of the reader / writer 53. It is displayed (S7), and the whereabouts of the lost document is pursued based on the contents (S8). As a result, if there is no lost document (NO in S9), the lost document is deleted from the document name (S13), and a new document list is recorded in the user area 67 of the RFID tag 200 (S11). The inventory execution date and the person in charge are input from the keyboard 52 of the reader / writer 53, and the inventory execution date and the person in charge are recorded in the inventory information area of the RFID tag 200 (S12). If there is a lost document in step S9 (YES route in S9), if no new document is added or if the contents are to be changed and not updated (NO route in S10), the process goes to step S12. If the process proceeds and is updated (YES route in S10), a new document list is recorded in the user area 67 of the RFID tag 200 (S11), and the inventory execution date and the person in charge of execution are selected from the keyboard 52 of the reader / writer 53. The entered date and the name of the person in charge are recorded in the inventory information area of the RFID tag 200 (S12).

1 is a block diagram showing a configuration of an RFID tag reader / writer according to an embodiment of the present invention. The block diagram which shows the structure of the RFID tag of embodiment of this invention. The figure showing the relationship between the holder and RFID tag which are used for this embodiment. 1 is a configuration diagram of an article management system according to an embodiment of the present invention. The figure which takes out the holder 30 from the storage shelf 40, and reads the management information currently recorded on the RFID tag 200 by the handy type reader / writer 53 in order to implement inventory. The figure which shows the content of the memory area of the memory which the RFID tag recorded by the article | item management system of this invention has. The figure for demonstrating the status of an inventory in more detail. The figure explaining the effect of the inventory in the article | item management system of this invention compared with the past. The flowchart explaining the inventory implementation operation | movement by the article | item management system of this invention.

Explanation of symbols

9, 9a antenna, 30 holder, 40 storage shelf (furniture), 41 shelf, 43 file, 44 cable, 45 door, 46 key, 50 PC (control means), 100 reader / writer, 200 RFID tag, 300 article management system

Claims (4)

An RFID tag that is attached to an article and stores management information related to the article, a reader / writer that reads and writes the management information to and from the RFID tag, and a control unit that controls the reader / writer, the article When the inventory of the article is carried out based on the management information recorded on the RFID tag attached to the tag, the control means controls the reader / writer for the inventory information of the article, and the management recorded in the RFID tag It is recorded as a part of information, and when an ID code given to an authorized user is input and the ID code is authenticated, the information reading / writing operation is permitted to the inventory information area. Goods management system. 2. The article management according to claim 1 , wherein the control unit records at least date information on the day when the article is inventoried and date information closest to the date information on the day as the inventory information. system. The apparatus further includes a fixture having an antenna for collectively storing the article and transmitting and receiving radio waves for reading and writing management information recorded on the RFID tag, and the reader / writer is connected to the inside of the fixture via the antenna. If the latest date information recorded in the inventory information is different from the date information on the day of the inventory, the article recording the latest date information is detected as not being inventoried. The article management system according to claim 1 or 2 , characterized in that: An inventory information RFID tag for separately recording the inventory information is further provided, information relating to articles is recorded in the RFID tag, and communication methods between the RFID tag and the inventory information RFID tag are different communication methods. The article management system according to any one of claims 1 to 3 .

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