JP2009175894A - Article management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an article management system for surely managing all articles to be managed even in an environment where the movement of a plurality of articles to be managed frequently occurs. <P>SOLUTION: This article management system is provided with: a plurality of RFID tags as a transponder individually attached to each of a plurality of jewels displayed in a prescribed display case 11; an RFID reader 12 configured as flat planar antennas, and arranged in the display case 11 for communicating with the plurality of RFID tags; and a data collection device 13 for communicating with the RFID reader 12. The RFID reader 12 collectively reads the data stored in the plurality of RFID tags with prescribed time intervals, and transmits the data to the data collection device 13, and the data collection device 13 generates a log file by recording the data received with the prescribed time intervals from the RFID reader 12 in each reception time, and outputs the generated data file. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an article management system for managing articles to be managed, and more particularly to an article management system using a tag as a transponder used in a so-called RFID (Radio Frequency Identification) system.

  2. Description of the Related Art Conventionally, an individual management system called RFID (Radio Frequency IDentification) has attracted attention in various industries. This RFID system stores various data in a readable and / or writable manner and has a small non-contact integrated circuit (hereinafter referred to as IC) device (transponder) having a communication function, and a predetermined reader / writer. Is a technique for reading and / or writing data in a non-contact manner with respect to a transponder by performing wireless communication between them. This RFID system is expected to be applied to various uses such as collection of transportation fees, identification cards, and even electronic money, including the use of production and logistics management by attaching transponders as tags to products. It is what has been.

  By the way, as a system using such RFID, a system that performs inventory management and sales management has been proposed. In particular, in order to manage a plurality of articles, a system that collectively reads tags located within a certain range of width has been proposed (see, for example, Patent Document 1).

  Specifically, this Patent Document 1 discloses a reader / writer array that can collectively read or write management information of a plurality of managed articles stored in a storage shelf. In particular, this reader / writer array includes a plurality of reader / writers that read or write management information stored in RFID tags mounted on each managed article in a non-contact manner, and a plurality of reader / writers arranged from a storage shelf. And a support member configured independently. In this reader / writer array, each reader / writer is disposed on the support member so as to correspond to the positions of a plurality of managed articles stored side by side on at least one shelf of the storage shelf. As a result, in this reader / writer array, management information of a plurality of managed articles stored in the storage shelf can be read or written in batches in a predetermined unit, providing versatility and improving workability. I can do it.

JP 2007-35202 A

  By the way, in the technique described in Patent Document 1 described above, a plurality of reader / writers are arranged so as to correspond to the positions of a plurality of managed articles stored side by side on at least one shelf of the storage shelf. Therefore, there is a problem that it cannot be applied as it is to a display case for displaying jewelry such as a ring or a necklace at a store. Moreover, the sales environment for such jewelry is an environment in which merchandise as managed articles are frequently put in and out of display cases in response to customer requests. The system and the sales management system cannot be applied to such an environment involving frequent movement of goods.

  The present invention has been made in view of such circumstances, and an article management system capable of reliably managing all managed articles even in an environment in which movement of a plurality of managed articles frequently occurs. The purpose is to provide.

  An article management system according to the present invention that achieves the above-described object is an article management system for managing managed articles, wherein a display member that stores and displays a plurality of managed articles, and is displayed on the display member. A plurality of RFID tags as transponders that are individually attached to each of the plurality of managed articles and store various data in a readable and / or writable manner and have a communication function, and a flat plate having a predetermined size. An RFID reader configured as a planar antenna and disposed on the display member and communicating with the plurality of RFID tags individually attached to the plurality of managed articles, and communication with the RFID reader Possible data collection device. Here, the RFID tag stores at least data including identification data uniquely assigned to the RFID tag. The RFID reader has transmission means for reading the data stored in the plurality of RFID tags at a predetermined time interval and transmitting the read data to the data collection device. The collection device records the data received from the RFID reader at the predetermined time interval for each reception time, generates a log file, and outputs a data file generated by the data recording unit. It is characterized by having.

  Such an article management system according to the present invention reads out data stored in a plurality of RFID tags in a non-contact manner by an RFID reader at predetermined time intervals and records these data as log files by a data collection device. By doing so, the presence / absence of the managed article displayed on the display member is constantly monitored without performing an operation using a hand-held RFID reader.

  In the present invention, since the presence or absence of the managed articles displayed on the display member can be constantly monitored, even if a plurality of managed articles move frequently, the management of all the managed articles is ensured. It is possible to respond quickly and accurately to situations such as loss of managed articles.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

  This embodiment is an article management system that manages managed articles such as products. In this article management system, a tag composed of a transponder used in a so-called RFID (Radio Frequency Identification) system is attached to each article to be managed, and a plurality of articles to be managed are managed all at once.

  In the following, for convenience of explanation, a case will be described in which a jewelry item as a product displayed in a display case is used as a managed article.

  As shown in FIG. 1, the article management system stores a display case 11 for storing and displaying jewelry as a product, an RFID reader 12 disposed in the display case 11, and communication with the RFID reader 12. And a data collection device 13.

  The display case 11 includes a mounting table 11a on which jewelry is mounted, and a visual recognition member 11b made of a glass plate or the like for protecting the jewelry mounted on the mounting table 11a and making it viewable. The display case 11 is installed in a store or the like, and is used for putting in and out jewelery according to the customer's request, such as try-on of jewelery when an employee of the store contacts the customer. Although only one display case 11 is shown in FIG. 1, a plurality of display cases 11 may be installed in the article management system.

  The RFID reader 12 is configured as a flat planar antenna having a predetermined size, and is disposed in the vicinity of the mounting surface of the mounting table 11 a in the display case 11. As the most general arrangement form, the RFID reader 12 may be mounted on the mounting surface of the mounting table 11a as it is and covered with a blindfold plate or the like. Based on the principle of electromagnetic induction, such an RFID reader 12 emits magnetic flux from a predetermined built-in loop antenna, and is individually attached to each jewelry placed on the mounting table 11a by inductive coupling by the magnetic flux. The antenna is magnetically coupled to the antenna on the RFID tag side, and communication is performed with the RFID tag. The RFID reader 12 reads data stored in a plurality of RFID tags in a non-contact manner. At this time, the RFID reader 12 reads the data stored in the RFID tag at a predetermined time interval of, for example, several seconds, thereby reading data almost constantly. Note that the data stored in the RFID tag is data including at least identification data uniquely assigned to the RFID tag, as will be described later. Data read by the RFID reader 12 is transmitted to the data collection device 13. Note that a single RFID reader 12 or a plurality of RFID readers 12 can be disposed per display case 11 depending on the size of the display case 11. When a plurality of RFID readers 12 are used, the identification data individually assigned to each RFID reader 12 is transmitted to the data collection device 13 together with the data read from the RFID tag. The RFID reader 12 may also have a function as a writer that writes data to be stored in the RFID tag to the RFID tag.

  The data collection device 13 is composed of, for example, a personal computer or a dedicated controller, and is configured to be able to communicate with the RFID reader 12. Specifically, as shown in FIG. 2, the data collection device 13 includes at least a control unit 21 that comprehensively controls each unit, an RFID reception unit 22 that receives data transmitted from the RFID reader 12, It has two data recording units 23 and 24 that record data received by the RFID receiving unit 22 as files, and a communication unit 25 that communicates with an external device. Among these units, the control unit 21 and the data recording units 23 and 24 are realized by an article management program executed by a processor (not shown) such as a CPU (Central Processing Unit).

  The control unit 21 controls data reception processing by the RFID reception unit 22, data recording processing by the data recording units 23 and 24, and data transmission processing by the communication unit 25, and controls the entire data collection device 13 in an integrated manner. .

  The RFID receiver 22 transmits from the RFID reader 12 using a predetermined wireless communication method such as a wireless local area network (LAN) compliant with IEEE (Institute of Electrical and Electronic Engineers) 802.11 or other communication methods. Receive the received data. When receiving data at a predetermined time interval, the RFID receiving unit 22 supplies all the data to the data recording unit 23. Further, when there is missing identification data among the data received from the RFID reader 12, the RFID receiving unit 22 supplies the data to the data recording unit 24.

  The data recording units 23 and 24 record the data supplied from the RFID receiving unit 22 as a file in a memory or the like. Specifically, the data recording unit 23 records data received from the RFID reader 12 at predetermined time intervals for each reception time, and generates one log file. It should be noted that the data received from the RFID reader 12 at a certain time is an array of data relating to RFID tags corresponding to all jewelry displayed in the display case 11 at the time read by the RFID reader 12. Needless to say. At this time, the data recording unit 23 may record data at all times in chronological order. However, in order to reduce the file size, the data received at the previous time depends on the data received at the next time. It is desirable to overwrite. That is, it is desirable that the data recording unit 23 records only data for one time in a file. On the other hand, the data recording unit 24 records the missing data among the data received from the RFID reader 12 for each reception time, and generates one log file. That is, the data read by the RFID reader 12 is basically data related to RFID tags corresponding to all jewelry displayed in the display case 11, and the data collection device 13 receives all such data. However, when there is no jewelery to be displayed in the display case 11 such as when any jewelery is taken out from the display case 11 or lost during customer service, the jewelery is dealt with. Data relating to the RFID tag cannot be collected. The data recording unit 24 records such data for each reception time. At this time, the data recording unit 24 records the missing data in time series, instead of overwriting data unlike the data recording unit 23. Both the data recording units 23 and 24 preferably generate a file in which data is recorded in a general-purpose format, such as a text file or a CSV file. This is because, as will be described later, the data collection device 13 only collects data, and in order to perform necessary data processing on the existing system side where a predetermined lower-level program for inventory management, sales management, etc. is installed. This is to provide data compatibility. Such data recording units 23 and 24 supply the recorded files to the communication unit 25, respectively.

  The communication unit 25 uses an arbitrary communication method such as a wired LAN composed of so-called Ethernet (registered trademark) or the above-described wireless LAN to transmit data supplied from the data recording units 23 and 24 to an external unit (not shown). The data is transmitted to an external device that is a data transmission destination, such as a server device.

  The data collection device 13 having such units records the data received from the RFID reader 12 as a file and transfers it to an external device. The data collection device 13 is individually assigned to each RFID reader 12 when a plurality of RFID readers 12 are used per display case 11 or when a plurality of display cases 11 are installed. On the basis of the identification data, the RFID reader 12 identifies the data read and records the data as a file.

  In an article management system including such a display case 11, an RFID reader 12, and a data collection device 13, a plurality of jewelry displayed in the display case 11 can be used without an operation using a hand-held RFID reader. Data stored in a plurality of corresponding RFID tags is read in a batch without contact by the RFID reader 12 at predetermined time intervals, and these data are recorded as data files by the data collection device 13. That is, in the article management system, it is necessary to attach an RFID tag to each of a plurality of jewelry items. Here, a method for attaching an RFID tag to such jewelry will be described.

  It is realistic that the RFID tag is detachably stored together with the price tag in a price tag storage case that stores a price tag that displays the selling price (upper price) of jewelry as a product. A specific example of such a price tag storage case will be described with reference to FIGS.

  As shown in an exploded perspective view in FIG. 3, the price tag storage case 50 is configured by laminating four resin sheets 51, 52, 53, and 54 that are first to fourth sheets. These resin sheets 51, 52, 53, and 54 are made of, for example, a flexible optically transparent substantially rectangular base material such as a vinyl resin sheet, a polyethylene terephthalate film, or paraffin paper.

  Here, these resin sheets 51, 52, 53, 54 may have the same shape and size, respectively, but as described later, the portability of the price tag storage case 50 is improved and the price tag or RFID tag In order to facilitate attachment and detachment, it is desirable to form each in a different shape and size. For example, the resin sheet 51 forming the forefront surface of the price tag storage case 50 is configured by forming a semicircular recess 51a at the center of the right end edge of the substantially rectangular main surface. In addition, the resin sheet 51 is formed by forming a semicircular protrusion 51b having a hole 51c through which a string body, which will be described later, used when attaching to a jewelry, is formed at the center of the upper edge of the main surface. Is done. Furthermore, the resin sheet 52 that forms the lower layer of the resin sheet 51 has a substantially rectangular main surface, and is configured to have a lateral length that is substantially the same as that of the resin sheet 51. The resin sheet 52 is also configured by forming a semicircular protrusion 52a having a hole 52b through which a string used for attachment to jewelry is formed at the center of the upper edge of the main surface. . Furthermore, the resin sheet 53 that forms the lower layer of the resin sheet 52 has a substantially rectangular main surface and is configured to be slightly longer in the lateral direction than the resin sheets 51 and 52. The resin sheet 53 is also formed by forming a semicircular protrusion 53a having a hole 53b through which a string used for attachment to jewelry is formed at the center of the upper edge of the main surface. . The resin sheet 54 that forms the lower layer of the resin sheet 53 has a substantially rectangular main surface, and is configured to be slightly shorter in the vertical direction than the resin sheets 51, 52, 53.

  The price tag storage case 50 is bonded to the edges of the four resin sheets 51, 52, 53, and 54 by using a method such as thermocompression bonding or high frequency welding. As shown in the rear view in FIG. 5, for example, it is manufactured as a thin sheet-like single product having a horizontal length of about 35 mm to 40 mm, a vertical length of about 20 mm to 25 mm, and a thickness of less than about 1 mm. Is done. More specifically, as shown in FIG. 4, the price tag storage case 50 is opened to the right end by the resin sheets 51 and 52 by bonding the upper end, the left end and the lower end of the resin sheet 51 and the resin sheet 52. A mouth is formed and configured. In addition, the price tag storage case 50 is configured by bonding the upper end, the left end, and the lower end of the resin sheet 52 and the resin sheet 53 so that an opening is formed at the right end by the resin sheets 52 and 53. Further, as shown in FIG. 5, the price tag storage case 50 has an opening at the upper end formed by the resin sheets 53 and 54 by bonding the left and right ends and the lower end of the resin sheet 53 and the resin sheet 54. Composed. As a result, the price tag storage case 50 has a first storage portion 61 between the resin sheets 51 and 52, as shown in FIG. 6 in a state where the price tag storage case 50 is bent, taken along line AA in FIG. , A second storage portion 62 is formed between the resin sheets 52 and 53, and a third storage portion 63 is formed between the resin sheets 53 and 54.

  In such a price tag storage case 50, as shown in FIG. 7, the price tag 71 displaying predetermined article information including at least the selling price of jewelry is an opening in the first storage portion 61 formed at the right end. The price tag 71 is detachably accommodated by being inserted from. Further, in the price tag storage case 50, the RFID tag 72 is detachably stored by being inserted from the opening of the second storage portion 62 formed at the right end. Further, in the price tag storage case 50, another price tag 73 displaying predetermined article information is inserted from the opening in the third storage portion 63 formed at the upper end, so that the price tag 73 can be attached and detached. Stored.

  In this way, when the price tag storage case 50 is used, the price tag 71 is sandwiched between the resin sheets 51 and 52, the RFID tag 72 is sandwiched between the resin sheets 52 and 53, as shown in a sectional view in FIG. The price tags 71 and 73 and the RFID tag 72 are stored so that the price tag 73 is sandwiched between the resin sheets 53 and 54. At this time, as shown in the front view of FIG. 9, the price tag storage case 50 enables the article information displayed on the price tag 71 to be visually recognized through the resin sheet 51 that forms the forefront of the price tag storage case 50. At the same time, as shown in the rear view in FIG. 10, the price tags 71 and 73 are configured so that the article information displayed on the price tag 73 can be visually recognized through the resin sheet 54 that forms the backmost surface of the price tag storage case 50. Storing. The price tag storage case 50 stores the RFID tag 72 so that it cannot be visually recognized by the two price tags 71 and 73.

  Note that the price tags 71 and 73 can be printed on article information on predetermined paper or the like. As the article information displayed on these price tags 71 and 73, for example, as shown in FIG. 7, when the price tag storage case 50 is attached to jewelry, in addition to the selling price, it is specific to the jewelry as a product. Product code attached, types of jewelry such as rings and necklaces, types of bullion used in jewelry, types of jewelry used in jewelry (stones), and design numbers indicating the design of jewelry , The name of the product used for sale, the encrypted alphanumeric code, and / or the manufacturer's name, and if necessary, the bar code indicating the weight of the jewelry used in the jewelry and information on the item And the like. These pieces of article information may be printed as specific character information, but may be printed as symbols representing the character information. The article information displayed on these price tags 71 and 73 may be the same or different. Further, as the RFID tag 72, an antenna coil or an IC (Integrated Circuit) chip having a predetermined conductor pattern printed on a predetermined thin base material can be used. Information corresponding to the article information may be stored in the RFID tag 72, but it is uniquely assigned at the time of manufacturing the RFID tag 72 from the viewpoint of security, such as avoiding reading of information by an unauthorized third party. It is desirable to store only identification data such as a manufactured manufacturing code.

  For example, as shown in FIG. 11, the price tag storage case 50 is attached to the jewelry 80 via a string body 81 inserted through holes 51c, 52b, 53b formed in the protrusions 51b, 52a, 53a. , Offered for trading. Here, in the price tag storage case 50, the interval between the first storage unit 61, the second storage unit 62, and the third storage unit 63 formed by the four resin sheets 51, 52, 53, 54 is set. Since the price tags 71 and 73 and the RFID tag 72 are securely clamped because they are very tightly attached, the price tags 71 and 73 and the RFID tag 72 are not dropped. Further, in the price tag storage case 50, the stored price tags 71 and 73 and the RFID tag 72 can be more reliably sandwiched by the influence of static electricity due to the friction of the four resin sheets 51, 52, 53 and 54.

  The price tag storage case 50 is removed from the jewelry 80 and collected when it is no longer needed after buying and selling the jewelry 80 and stored in the first storage unit 61 and the third storage unit 63. By removing the price tags 71 and 73, and removing the RFID tag 72 as necessary, it can be reused as it is to be attached to other jewelry. That is, the price tag storage case 50 can be reused without requiring any complicated work such as peeling of the resin sheets 51, 52, 53, 54, and the RFID tag 72 is not damaged.

  Moreover, since the price tag storage case 50 is attached to the jewelry 80 via the string body 81 inserted through the holes 51c, 52b, and 53b, it can be attached to the jewelry that cannot be attached. Furthermore, since the price tag storage case 50 does not expose the printing surface of the price tags 71 and 73 and the RFID tag 72 to the outside, the resistance to dirt and damage can be greatly enhanced.

  In the article management system, the RFID tag 72 is attached to each jewelry 80 using such a price tag storage case 50, and article management is performed based on data stored in the plurality of RFID tags 72.

  That is, in the article management system, identification data unique to the RFID tag 72 stored in the plurality of RFID tags 72 and data regarding the jewelry 80 to which the RFID tag 72 is attached are stored in an external database. Correlate. An existing system may be used arbitrarily for the construction of such a database. That is, in the article management system, in order to use an existing system in which a predetermined subordinate program for performing inventory management, sales management, etc. is installed without changing anything, the data collection device 13 only collects data, Make necessary data processing on the existing system for the collected data. Therefore, in the article management system, the construction of an interface for exchanging data between an existing system such as a server device or database as an external device and the data collection device 13, and the data received by the external device as a lower-level program Prepare an internal interface to pass to. In addition, as described above, the database includes a sales price, a product code, a type of jewelry, a type of bullion, a type of jewel (stone), a design number, a product name, a sign, and / or a manufacturer name, Furthermore, if necessary, article information such as the weight of a jewel or a barcode may be associated with the identification code of the RFID tag 72 in advance. Note that the article information described here is merely an example, and it is needless to say that the article information differs depending on the article to be managed.

  After making such preparations, in the article management system, the data stored in the plurality of RFID tags 72 are collectively read out by the RFID reader 12 at a predetermined time interval, and these data are collected. The data is recorded as a data file by the device 13, and the generated data file is transmitted to the external device.

  Then, the external device grasps the number of RFID tags 72 displayed in the display case 11, that is, the number of jewelry 80 based on the received data, and corresponds to the jewelry 80 to be displayed. When the data related to the RFID tag 72 is missing, it is determined whether the data relating to which RFID tag 72 is missing. Then, the external device searches the product information corresponding to the identification code of the RFID tag 72 from which data is missing by referring to the database. Thereby, the external device can grasp which jewelry 80 is not displayed in the display case 11. The method of using such a determination result may be arbitrary, such as the same as in the existing system. For example, by the processing of the lower-level program, from the server device as an external device, the store in which the display case 11 is installed It is conceivable that information relating to the jewelry 80 that is not displayed in the display case 11 is transmitted to the store terminal so that the information is notified. Further, in the article management system, by using such determination results, it is possible to automatically calculate the sales amount, manage the inventory status of goods, and the like by the processing of the lower program. As described above, the article management system can be applied to various applications as processing that can be realized by a lower-level program.

  As described above, in the article management system shown as the embodiment of the present invention, the data stored in the plurality of RFID tags 72 is read out in a non-contact manner by the RFID reader 12 at predetermined time intervals. By recording data as a data file by the data collection device 13, it is possible to constantly monitor the presence or absence of the jewelry 80 displayed in the display case 11 without performing an operation using a hand-held RFID reader. Therefore, in this article management system, even if the movement of the plurality of jewelry 80 frequently occurs, all the jewelry 80 can be reliably managed, and the jewelry 80 is lost or stolen. Can respond quickly and accurately.

  Further, in this article management system, by collecting and analyzing data related to the missing RFID tag 72, it is possible to collect the sales amount, manage the inventory status of goods, and the like. Further, in this article management system, not only the data related to the missing RFID tag 72 but also the data related to all the RFID tags 72 are collected. Therefore, by analyzing such data, the jewelry for the display case 11 being sold is displayed. It is also possible to grasp the status of putting in and out of 80, so that it is possible to verify so-called hot selling products and deadly selling products and the like, which can contribute to efficient marketing.

  The present invention is not limited to the embodiment described above.

  For example, in the above-described embodiment, the case where the jewelry displayed in the display case is used as a managed article has been described, but the present invention can be applied to a pole hanger or the like that hangs a plurality of clothes in a clothing store. The present invention can be applied to a case where an arbitrary article is displayed in an arbitrary display area, such as an RFID reader configured as a planar antenna is also hung together or an RFID reader is disposed on a bookshelf in a bookstore.

  Further, in the above-described embodiment, it has been described that only data collection is performed on the data collection device side, and necessary data processing is performed on the collected data on the existing system side. The data collection device may be provided with a function to perform necessary data processing, and the data processing device alone may be processed without going through an external device. That is, the present invention can be easily applied even when a new system is constructed without using an existing system.

  Thus, it goes without saying that the present invention can be modified as appropriate without departing from the spirit of the present invention.

It is a figure explaining the structure of the article | item management system shown as embodiment of this invention. It is a block diagram explaining the structure of the data processing apparatus in the article | item management system shown as embodiment of this invention. It is a disassembled perspective view explaining the structure of the price tag storage case used in the article | item management system shown as embodiment of this invention. It is a front view explaining the structure of a price tag storage case. It is a rear view explaining the structure of a price tag storage case. It is AA sectional drawing in FIG. 4, and is a figure which shows the state which bent the price tag storage case. It is a figure explaining a mode that a price tag and an RFID tag are accommodated in a price tag storage case. It is sectional drawing of the price tag storage case in the state in which the price tag and the RFID tag were stored. It is a front view of the price tag storage case in the state in which the price tag and the RFID tag are stored. It is a rear view of the equivalence tag storage case in the state where the price tag and the RFID tag are stored. It is a figure explaining a mode that the price tag storage case was attached to jewelry.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Display case 11a Mounting base 11b Visual recognition member 12 RFID reader 13 Data collection device 21 Control part 22 RFID receiving part 23,24 Data recording part 25 Communication part 50 Price tag storage case 51,52,53,54 Resin sheet 51a Depression 51b, 52a , 53a Projection 51c, 52b, 53b Hole 61 First storage portion 62 Second storage portion 63 Third storage portion 71, 73 Price tag 72 RFID tag 80 Jewelry 81 String

Claims (6)

An article management system for managing managed articles,
A display member for storing and displaying a plurality of managed articles;
A plurality of RFID tags as transponders that are individually attached to each of the plurality of managed articles displayed on the display member, store various data in a readable and / or writable manner, and have a communication function;
It is configured as a flat planar antenna having a predetermined size and is arranged on the display member, and communicates with the plurality of RFID tags individually attached to the plurality of managed articles. An RFID reader;
A data collection device capable of communicating with the RFID reader,
The RFID tag stores at least data including identification data uniquely assigned to the RFID tag,
The RFID reader has transmission means for reading the data stored in the plurality of RFID tags in a batch at a predetermined time interval, and transmitting the read data to the data collection device,
The data collection device
Data recording means for recording the data received from the RFID reader at the predetermined time interval for each reception time, and generating a log file;
An article management system comprising: output means for outputting a data file generated by the data recording means. The data recording means includes
First data recording means for generating a log file in which data relating to all the RFID tags corresponding to all the managed articles displayed on the display member at the time read by the RFID reader are arranged;
Second data recording for generating a log file in which data relating to an RFID tag corresponding to the managed article is recorded in time series for each reception time when there is no managed article to be displayed on the display member The article management system according to claim 1, further comprising: means. The article management system according to claim 2, wherein the first data recording means overwrites the data received at the previous time with the data received at the next time. The article management system according to any one of claims 1 to 3, wherein the data recording means generates a file in which data is recorded in a general-purpose format. The article management system according to claim 1, wherein the output means transmits the data file generated by the data recording means to an external device. The article management according to any one of claims 1 to 5, wherein the RFID tag is stored together with the price tag in a price tag storage case that stores a price tag that displays at least a sales price of a product. system.