JP5087600B2 - Information processing apparatus and program - Google Patents

Description

  The present invention relates to an information processing apparatus and a program.

  In recent years, it has been attached to products displayed on product shelves for the purpose of grasping customer's preference trends and trendy colors and designs and using them for product display on product shelves and next product planning. The RFID (Radio Frequency Identification) tag is constantly scanned by a reader to check the inventory of products displayed on the product shelf in real time, and the behavior that the customer picks up the product displayed on the product shelf. Product shelves (such as smart shelves) that can be known when products (RFID tags) are separated from the shelves and come out of an area that can be read by a reading device have become widespread (for example, patents) Reference 1).

  By the way, the RFID tag reading device used in the above-described product shelf or the like cannot stably receive the radio wave from the reading device or the reading device cannot stably receive the response wave from the RFID tag. If the relationship between the RFID tag and the reading device is unstable due to the influence of the surrounding environment, the information may not be read stably by repeatedly reading and reading information from the RFID tag. is there.

  Especially in actual stores where merchandise shelves are installed, metal frame merchandise shelves are installed, and people go around the product shelves, so the relationship between RFID tags and readers is unstable. It cannot be avoided. However, in conventional merchandise shelves, information from RFID tags has been overlooked due to an unstable relationship between the RFID tag and the reader, or because the customer has picked up the product, Since it is impossible to distinguish whether the information of the RFID tag has been read over, if the RFID tag is read over by the former in large quantities, the latter information to be originally acquired is buried, making it difficult to utilize the information. There is.

  The present invention has been made in view of the above, and even when the relationship between the RFID tag and the reading device is in an unstable state, information with low reliability due to the unstable state is superior. An object of the present invention is to provide an information processing apparatus and a program that can prevent notification to the system.

In order to solve the above-described problems and achieve the object, the present invention includes a collection unit that collects product information indicating the product detected by the detection unit from a wireless tag attached to the product displayed on the product shelf; In accordance with the product information collected by the collection unit, a calculation unit that calculates a degree of stability indicating the degree of continuous detection of the product information for each product information detected by the detection unit, and a calculation by the calculation unit Notification means for notifying the higher-order system of the product information whose stability is higher than a predetermined lower limit as a detection history of the product information, and the calculation means collected by the collection means When the stability of the product information is equal to or lower than the lower limit value, a predetermined initial value higher than the lower limit value is set before the product information collected by the collecting means. When the stability of the product information collected by the collection means is higher than the lower limit value, the value obtained by increasing the stability of the product information collected by the collection means is calculated by the collection means. It is calculated as the stability of the collected product information .

Further, the present invention provides a computer for collecting product information indicating the product detected by the detecting unit from a wireless tag attached to the product displayed on the product shelf, and the product information collected by the collecting unit. In accordance with the above, for each of the product information detected by the detection means, a calculation means for calculating a stability indicating the degree to which the product information is continuously detected, and the stability calculated by the calculation means are determined in advance. The product information that is higher than the lower limit is functioned as a notification unit that notifies the host system as a detection history of the product information, and the calculation unit is configured such that the stability of the product information collected by the collection unit is When it is equal to or lower than the lower limit value, a predetermined initial value higher than the lower limit value is set as the stability of the product information collected by the collecting means. The product information collected by the collection means when the stability of the product information collected by the collection means is higher than the lower limit value, the value obtained by increasing the stability of the product information collected by the collection means Calculated as the degree of stability of the information .

  The information processing device and the program according to the present invention notify the host system of low reliability information due to the unstable state even when the relationship between the RFID tag and the reading device becomes unstable. There is an effect that it can be prevented.

FIG. 1 is an external perspective view schematically showing a product shelf on which products with RFID tags are displayed. FIG. 2 is a diagram schematically showing an overall configuration of the EPC management system according to the embodiment of the present invention. FIG. 3 is a diagram illustrating an example of a table stored in the RFID database. FIG. 4 is a diagram showing a module configuration of the control PC. FIG. 5 is a diagram illustrating each functional unit of the control PC. FIG. 6 is a diagram illustrating an example of the detection history table. FIG. 7 is a flowchart showing the flow of processing for notifying the APL of the EPC detection history. FIG. 8 is a flowchart showing a detailed flow of the table update process 1. FIG. 9 is a flowchart showing a detailed flow of the table update process 2.

  Exemplary embodiments of an information processing apparatus and a program according to the present invention will be explained below in detail with reference to the accompanying drawings. In this embodiment, the information processing apparatus and the program according to the present invention are stored in product information (EPC: Electronic Product Code) held in an RFID (Radio Frequency Identification) tag (also referred to as a wireless tag or an IC tag). An example applied to an EPC management system to be managed will be described, but the present invention is not limited to an embodiment described below.

  FIG. 1 is an external perspective view schematically showing a product shelf on which products with RFID tags are displayed. FIG. 2 is a diagram schematically showing an overall configuration of the EPC management system according to the embodiment of the present invention.

  As shown in FIG. 2, the EPC management system 1 according to the present embodiment includes a product shelf 100, a control PC (Personal Computer) 200, an RFID server 300, a data reference PC 400, and the like. Are communicably connected via an area network.

  As shown in FIGS. 1 and 2, the product shelf 100 is a shelf for displaying the product 101 sold in the store, and detects a EPC from an RFID tag 101 a attached to the product 101 ( Detection means) 102 is provided. In the present embodiment, the detection device 102 periodically reads an EPC from the RFID tag 101a (for example, at intervals of 3 seconds), and an output unit that outputs the EPC read by the RFID reader 103 to the control PC 200. 104.

  The control PC 200 registers the EPC detection history by the detection device 102 in the RFID server 300. In the present embodiment, the system configuration of the control PC 200 controls the detection device 102 to collect EPC detected by the RFID tag 101a, and notifies an APL (upper system) 202, which will be described later, of the collected EPC detection history. The data collection middleware 201 and an APL (application) 202 for notifying the RFID server 300 of a message indicating the EPC detection history notified from the data collection middleware 201 and registering the EPC detection history in the RFID server 300 are provided. Yes. This message corresponds to ALE (Application Layer Event) standardized by EPCglobal.

  Here, the message notified from the APL 202 to the RFID server 300 includes the EPC (ID) of the product 101 displayed on the product shelf 100 and the date and time when the EPC of each product 101 was detected (or the date and time when EPC was no longer detected). ) Indicating that the EPC is detected (or that EPC is no longer detected) and information (ADDITION or DELETION). The APL 202 transmits a message corresponding to this information to an arbitrary client (RFID server 300) designated by the data collection middleware 201. A plurality of clients can be specified.

  In the present embodiment, the APL 202 notifies the RFID server 300 of the message, but the present invention is not limited to this, and any client designated by the user as the data collection middleware 201 without passing through the APL 202. A message may be notified to (RFID server 300 as a host system). Alternatively, the user of the control PC 200 may designate a client that transmits a message by designating a database management application 302 (described later) that the RFID server 300 has. Alternatively, the user of the control PC 200 may designate the APL 202 and update the RFID database 301 (described later) included in the RFID server 300 by the designated APL 202. Alternatively, the user of the control PC 200 designates both the database management application 302 (described later) and the APL 202, and the designated database management application 302 (described later) updates the RFID database 301 (described later). Data collected by the data collection middleware 201 independently by the APL 202 may be used.

  The RFID server 300 manages the EPC detection history indicated by the message notified from the control PC 200. In the present embodiment, the system configuration of the RFID server 300 is stored in the RFID database 301 according to the RFID database 301 that stores a table representing the EPC detection history and the EPC detection history indicated by the message notified from the control PC 200. A database management application 302 for updating the updated table.

  FIG. 3 is a diagram illustrating an example of a table stored in the RFID database. As shown in FIG. 3, the table stored in the RFID database 301 includes the EPC (ID) of the product 101 displayed on the product shelf 100 and the date and time when the EPC of each product 101 was detected (or no EPC is detected). Time indicating the date and time) and Event (ADDITION or DELETION) indicating that EPC is detected (or that EPC is no longer detected) are associated with each other.

  The data reference PC 400 is used when the administrator of the EPC management system 1 refers to a table stored in the RFID database 301 of the RFID server 300. In this embodiment, the system configuration of the data reference PC 400 is such that an ADDITION / DELETION pair associated with each ID is extracted from a table stored in the RFID database 301, and the number of extracted pairs is indicated by each ID. A data analysis system APL 401 that counts the number of pick-ups of the product 101 shown and uses the count result for future product display and next product planning is provided. More specifically, the data analysis system APL 401 displays the count result of the number of pink ups of the product 101 for each shelf, product, color, design, and size that the product shelf 100 has, Useful for product planning.

  Next, the module configuration of the control PC 200 will be described with reference to FIG. FIG. 4 is a diagram showing a module configuration of the control PC.

  As shown in FIG. 4, the control PC 200 stores a CPU (Central Processing Unit) and various programs (for example, the data collection middleware 201, the APL 202, etc.) for realizing each function unit described later in cooperation with the CPU. Control unit 210 of computer configuration composed of ROM (Read Only Memory), RAM (Random Access Memory), etc., display such as CRT (Cathode Ray Tube) and LCD (Liquid Crystal Display) for displaying processing progress and results Unit 211, an input unit 212 such as a keyboard and a mouse for a user to input commands and information to the control unit 210, a storage unit 213 such as an HDD (Hard Disk Drive) that functions as a database and stores various programs, and a LAN Information is transmitted by communication with other devices (for example, RFID server 300) via a network such as The communication control unit 214 and the like for reaching the communication unit are provided, and these units are connected by a bus 215.

  In such a computer, when the user turns on the power, the CPU activates a program called a loader in the ROM, reads a program for managing the hardware and software of the computer called OS (Operating System) from the storage unit 213 into the RAM, This OS is started. Such an OS activates a program, reads information, and stores information in accordance with a user operation. As a representative OS, Windows (registered trademark) and the like are known. These operation programs running on the OS are called application programs. Note that the application program is not limited to one that runs on a predetermined OS, but may be one that causes the OS to execute some of the various processes described below, or constitutes predetermined application software, an OS, or the like. It may be included as part of a group of program files.

  In the personal computer, when an application program operating on the OS is activated, the control unit 210 executes various arithmetic processes according to the application program, and controls each unit in an integrated manner.

  Next, functional units of the control PC 200 will be described with reference to FIG. FIG. 5 is a diagram illustrating each functional unit of the control PC.

  The control PC 200 includes a collection unit 501, a calculation unit 502, a notification unit 503, and the like as functional units realized by the cooperation of the control unit 210 described above and a program (data collection middleware 201) stored in advance such as a ROM. .

  The collection unit 501 collects EPC detected by the detection device 102.

  The calculation unit 502 calculates a degree of stability indicating the degree to which EPC is continuously detected for each EPC detected by the detection apparatus 102 in accordance with the EPC collected by the collection unit 501. Furthermore, the calculation unit 502 updates the detection history table stored in the storage unit 213 according to the calculated stability. FIG. 6 is a diagram illustrating an example of the detection history table. As shown in FIG. 6, the detection history table includes an EPC (ID) 601 having a stability 602 higher than a predetermined lower limit: “0” among the EPCs detected by the detection apparatus 102, and the stability of the EPC 601. 602 and a continuation flag 603 representing the previous EPC collection result are recorded in association with each other. The continuation flag 603: “0” indicates that EPC was not collected in the previous collection by the collection unit 501, and the continuation flag 603: “1” represents that the EPC was collected in the previous collection by the collection unit 501. Indicates that it has been collected.

  More specifically, the calculation unit 502 sets all the continuation flags 603 to “0” before the detection apparatus 102 detects EPC. After that, when the EPC is detected by the detection device 102 and the EPC 601 is collected by the collection unit 501, the calculation unit 502 executes two-stage table update processes 1 and 2.

  In the table update process 1, the calculation unit 502 first determines whether or not the collected EPC 601 is recorded in the detection history table. When the collected EPC 601 is already recorded in the detection history table (that is, when the stability 602 of the collected EPC 601 is higher than the lower limit value), the calculation unit 502 records the stability recorded in association with the collected EPC. A value obtained by increasing the degree 602 is calculated as the stability 601 of the collected EPC 601. Specifically, the collected EPC 601 is already recorded in the detection history table, and the stability 602 recorded in association with the collected EPC 601 is less than a predetermined initial value N (for example, “5”). In this case, the calculation unit 502 calculates a value obtained by increasing the stability 602 recorded in association with the collected EPC 601 to the initial value N as the stability 602 of the collected EPC 601. Further, the calculation unit 502 updates the stability 602 recorded in association with the collected EPC 601 with the calculated stability 602 and sets the continuation flag 603 recorded in association with the collected EPC 601 to “1”. To. Further, when the collected EPC 601 is already recorded in the detection history table and the stability 602 recorded in association with the collected EPC 601 is equal to or greater than the initial value N and less than the maximum value M, the calculation unit 502 A value obtained by incrementing the stability 602 recorded in association with the EPC 601 is calculated as the stability 602 of the collected EPC 601. Further, the calculation unit 502 updates the stability 602 recorded in association with the collected EPC 601 with the calculated stability 602 and sets the continuation flag 603 recorded in association with the collected EPC 601 to “1”. To. When the collected EPC is already recorded in the detection history table and the stability 602 recorded in association with the collected EPC 601 is a predetermined maximum value M (for example, “10”), the calculation unit 502 Sets the continuation flag 603 recorded in association with the collected EPC 601 to “1”.

  Further, when the collected EPC 601 is a newly detected EPC 601 that is not recorded in the detection history in the table (that is, when the stability 602 of the collected EPC 601 is equal to or lower than the lower limit value), the calculation unit 502 calculates an initial value. N is calculated as the stability 602 of the collected EPC 601. Then, the calculation unit 502 records the collected EPC 601 in the detection history table in association with the calculated stability 602 (initial value N) and the continuation flag 603: “1”.

  In the table update process 2, the calculation unit 502 firstly stores the EPC 601 recorded in association with the continuation flag 603: “0” in the detection history table updated in the table update process 1 (not collected by the collection unit 501). EPC). When the stability 602 recorded in association with the searched EPC 601 is the maximum value M, the calculation unit 502 calculates a value equal to or lower than the lower limit value as the stability 602 of the searched EPC 601. Further, the calculation unit 502 updates the stability 602 recorded in association with the searched EPC 601 with the calculated stability 602.

  When the stability 602 recorded in association with the searched EPC 601 is higher than the initial value N and lower than the maximum value M (when continuously detected in the past), the calculation unit 502 is higher than the lower limit value. A predetermined minimum value L lower than the initial value N is calculated as the stability 602 of the searched EPC 601. Further, the calculation unit 502 updates the stability 602 recorded in association with the searched EPC 601 with the calculated stability 602.

  Further, when the stability 602 recorded in association with the searched EPC 601 is higher than the lower limit value and equal to or lower than the initial value N (when not detected last time or only detected last time), the calculation unit 502 A value obtained by subtracting 1 from the stability 602 recorded in association with the searched EPC 601 is calculated as the stability 602 of the searched EPC 601. Further, the calculation unit 502 updates the stability 602 recorded in association with the searched EPC 601 with the calculated stability 602.

  Further, the calculation unit 502 registers the EPC 601 in which the stability 602 has reached a predetermined lower limit (“0”) as a result of the update of the stability 602 described above, in the deletion target list. Finally, the calculation unit 502 deletes the record related to the EPC 601 registered in the deletion target list from the detection history table.

  In the present embodiment, it is assumed that stability 602 decreases in the order of maximum value M, initial value N, minimum value L, and lower limit value.

  After the table updating processes 1 and 2 are executed by the calculation unit 502, the notification unit 503 stores the EPC 601 recorded in association with the stability 602 in the detection history table (that is, the stability 602 calculated by the calculation unit 502 is The EPL 601) higher than the lower limit value is notified to the APL 202 as an EPC detection history from the RFID tag 101a attached to the product 101 displayed on the product shelf 100.

  As a result, when the EPC 601 of the RFID tag 101a having the maximum stability M 602 is not detected, the APL 202 is notified that it is no longer detected (the EPC 601 of the RFID tag 101a that is no longer detected is notified). do not do). That is, the EPC 601 of the product 101 that is continuously detected (that is, the product 101 with the RFID tag 101a to which the EPC 601 is detected without being influenced by a person traveling around the product shelf 100) is detected. When it is no longer possible, there is a high possibility that the product 101 has been moved by a human hand, so that the APL 202 is notified that it is no longer immediately detected.

  In addition, when the EPC 601 of the RFID tag 101a whose stability 602 is not the maximum value M is not detected, it is not detected by the APL 202 when the EPC 601 is not detected continuously (minimum value L + 1) times. (The EPC 601 of the RFID tag 101a that is no longer detected does not notify). That is, the EPC 601 of the product 101 with the RFID tag 101a to which the EPC 601 is not detected even though the person has not touched the product 101 is no longer detected. If this is notified, the APL 202 is notified that the EPC 601 is no longer detected even though it is not actually picked up by a person. For this reason, if such a product 101 is not detected for a long time, it is highly likely that the product 101 has actually been picked up by a human hand, so that the APL 202 is notified that the product 101 is no longer detected.

  Next, the flow of processing for notifying the APL 202 of the EPC detection history will be described in detail with reference to FIG. FIG. 7 is a flowchart showing the flow of processing for notifying the APL of the EPC detection history.

  First, the collection unit 501 reads a set time n (for example, 200 ms) that is a time interval for collecting IDs detected by the detection device 102 before the detection device 102 detects EPC (ID) (step 200). S701), the detection history table is all cleared (step S702). The set time n is input by the user via the input unit 212 and stored in the storage unit 213.

  Then, when the detection of the ID is started by the detection apparatus 102, the collection unit 501 sets the current time as the detection time T (step S703) and corresponds to all the EPCs 601 (ID) recorded in the detection history table. The continuation flag 603 recorded with the addition is set to “0” (step S704). Next, the collection unit 501 collects the ID detected by the detection device 102 (step S705).

  When the ID is collected by the collection unit 501, the calculation unit 502 executes table update processing 1 and 2 (steps S706 and S707). The detailed flow of the table update processes 1 and 2 will be described later.

  When the table update processes 1 and 2 are executed, the notification unit 503 notifies the APL 202 of the EPC 601 (ID) recorded in association with the stability 602 in the detection history table (step S708).

  Next, the collection unit 501 calculates a difference X between the detection time T set in step S703 and the current time (step S709). Then, the collection unit 501 determines whether or not the calculated difference X is greater than the set time n (step S710). If the calculated difference X is greater than the set time n (step S710: Yes), the process returns to step S703.

  Next, the detailed flow of the table update process 1 will be described with reference to FIG. FIG. 8 is a flowchart showing a detailed flow of the table update process 1.

  First, the calculation unit 502 counts the EPC acquired by the collection unit 501, sets the counted value to the tag number Y of the RFID tag 101a that detected the EPC (step S801), and records the EPC in the detection history table. Is set to "1" (step S802). When the update of the detection history table is started, the calculation unit 502 determines whether or not the set order Z is larger than the tag number Y (step S803). If the set order Z is larger than the tag number Y (step S803: Yes), the table update process 1 ends.

  When the set order Z is equal to or less than the tag number Y (step S803: No), the calculation unit 502 determines whether or not the EPC (ID) of the order Z has been recorded in the detection history table (step S804). . When the EPC of the order Z is not recorded in the detection history table (step S804: No), the calculation unit 502 newly records the EPC of the order Z in the detection history table (step S805), and the EPC 601 of the newly recorded EPC 601. The initial value N is calculated as the stability 602, and the stability 602 (initial value N) is set in the detection history table in association with the newly recorded EPC 601 (step S806). Further, the calculation unit 502 sets a continuation flag 603: “1” in association with the newly recorded EPC 601 (step S807). Thereafter, the calculation unit 502 increments the order Z (step S808).

  When the EPC of the order Z has already been recorded in the detection history table (step S804: Yes), the calculation unit 502 sets the stability 602 recorded in association with the EPC 601 of the order Z in the detection history table to the maximum value M. It is determined whether or not (step S809). If the stability 602 recorded in association with the EPC 601 in the order Z is the maximum value M (step S809: Yes), the calculation unit 502 proceeds to the process shown in step S807.

  When the stability 602 recorded in association with the EPC 601 in the order Z is not the maximum value M (step S809: No), the calculation unit 502 initializes the stability 602 recorded in association with the EPC 601 in the order Z. It is determined whether or not the value is smaller than N (step S810). When the stability 602 recorded in association with the EPC 601 in the order Z is smaller than the initial value N (step S810: Yes), the calculation unit 502 proceeds to the process shown in step S806.

  When the stability 602 recorded in association with the EPC 601 in order Z is equal to or greater than the initial value N (step S810: No), the calculation unit 502 increments the stability 602 associated with the EPC 601 in order Z. The value is calculated as the stability 602 of the EPC 601 in the order Z, and the calculated stability 602 is set in the detection history table in association with the EPC 601 in the order Z (step S811), and then shown in step S807. Proceed to processing.

  Next, the detailed flow of the table update process 2 will be described with reference to FIG. FIG. 9 is a flowchart showing a detailed flow of the table update process 2.

  First, the calculation unit 502 clears the deletion target list (step S901). Next, the calculation unit 502 counts the table registration number J, which is the number of EPCs 601 recorded in the detection history table (step S902), and registers it in the deletion target list among the EPCs 601 recorded in the detection history table. The order K of the EPC 601 to be executed is set to “1” (step S903).

  Next, the calculation unit 502 determines whether or not the set order K is larger than the table registration number J (step S904). When the set order K is larger than the table registration number J (step S904: Yes), the calculation unit 502 records (stability) recorded in association with the EPC 601 (ID) registered in the deletion target list. 602, continuation flag 603) is deleted from the detection history table (step S913), and the table update process 2 is terminated.

  When the set order K is equal to or less than the table registration number J (step S904: No), the calculation unit 502 sets the continuation flag 603 recorded in association with the EPC 601 (ID) of the order K in the detection history table to “0”. "Is determined (step S905). If the continuation flag 603 recorded in association with the EPC 601 in the order K in the detection history table is not “0” (step S905: No), the calculation unit 502 corresponds to the EPC 601 in the order K in the detection history table. It is determined whether or not the recorded stability 602 is “0” (step S910). When the stability 602 recorded in association with the EPC 601 of the order K in the detection history table is “0” (step S910: Yes), the EPC 601 is registered in the deletion target list (step S911). Then, the order K is incremented (step S912).

  On the other hand, when the continuation flag 603 recorded in association with the EPC 601 of the order K in the detection history table is “0” (step S905: Yes), the calculation unit 502 uses the EPC 601 of the order K in the detection history table. It is determined whether or not the stability 602 recorded in association with is the maximum value M (step S906). In the detection history table, when the stability 602 recorded in association with the EPC 601 in the order K is the maximum value M (step S906: Yes), the calculation unit 502 sets the lower limit value: “0” in the order As the stability 602 of the K EPC 601, the stability 602 recorded in association with the EPC 601 of the order K in the detection history table is updated with the calculated stability 602 (step S 914). Thereafter, the process proceeds to step S910.

  When it is determined that the stability 602 recorded in association with the EPC 601 in the order K in the detection history table is not the maximum value M (step S906: No), the calculation unit 502 selects the EPC 601 in the order K in the detection history table. It is determined whether or not the stability 602 recorded in association is larger than the initial value N (step S907). In the detection history table, when it is determined that the stability 602 recorded in association with the EPC 601 of the order K is larger than the initial value N (step S907: Yes), the calculation unit 502 sets the minimum value L to the order K. The stability 602 recorded in association with the EPC 601 of order K is updated in the detection history table with the calculated stability 602 (step S908). Thereafter, the process proceeds to step S910. When the stability 602 recorded in association with the EPC 601 in the order K in the detection history table is equal to or less than the initial value N (step S907: No), the calculation unit 502 uses the EPC 601 in the order K in the detection history table. A value obtained by subtracting 1 from the stability 602 recorded in association with EPC 601 is calculated as the stability 602 of the EPC 601 in order K, and is recorded in association with the EPC 601 in order K in the detection history table based on the calculated stability 602. The updated stability 602 is updated (step S909). Thereafter, the process proceeds to step S910.

  Note that various programs executed by the control PC 200 of the present embodiment are provided by being incorporated in advance in a ROM or the like, but are not limited thereto.

  For example, various programs executed by the control PC 200 according to the present embodiment are files in an installable or executable format, such as a CD-ROM, a flexible disk (FD), a CD-R, a DVD (Digital Versatile Disk), and the like. It may be configured to be recorded on a computer-readable recording medium.

  Furthermore, various programs executed by the control PC 200 according to the present embodiment may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. Further, various programs executed by the control PC according to the present embodiment may be provided or distributed via a network such as the Internet.

  As described above, according to the EPC management system 1 according to the present embodiment, the control PC 200 collects the EPC detected by the detection device 103 from the RFID tag 101a attached to the product 101, and the collection unit 501. In accordance with the collected EPC, for each EPC detected by the detection device 103, a calculation unit 502 that calculates a degree of stability 602 indicating the degree of continuous detection of EPC from the RFID tag 101a, and a calculated degree of stability 602 are determined in advance. A notification unit 503 that notifies the APL 202 of an EPC 601 higher than the lower limit value as the EPC detection history from the RFID tag 101a attached to the product 101 displayed on the product shelf 100. EPC detected from RFID tag 101a that was able to detect Since the APL 202 is notified, even when the relationship between the RFID tag 101a and the detection device 103 becomes unstable, information with low reliability (EPC detection history) due to the unstable state is generated. Notification to the APL 202 can be prevented.

101 Commodity 101a RFID tag 102 Detection device 200 Control PC
202 APL
501 Collection unit 502 Calculation unit 503 Notification unit 601 EPC
602 Stability

JP 2007-156937 A

Claims (6)

A collection unit that collects product information indicating the product detected by the detection unit from a wireless tag attached to the product displayed on the product shelf;
Calculating means for calculating a degree of stability indicating the degree of continuous detection of the product information for each of the product information detected by the detection unit according to the product information collected by the collection unit;
Notification means for notifying the higher-order system as the product information detection history, the product information, the stability calculated by the calculation means is higher than a predetermined lower limit ,
When the stability of the product information collected by the collection unit is equal to or lower than the lower limit value, the calculation unit calculates a predetermined initial value higher than the lower limit value of the product information collected by the collection unit. When the stability of the product information calculated by the collection means is higher than the lower limit value, the value obtained by increasing the stability of the product information collected by the collection means is calculated as the stability. An information processing apparatus that calculates the stability of the product information collected by the method . When the stability of the product information not collected by the collection unit is higher than the lower limit value and less than or equal to the initial value, the calculation unit collects a value obtained by reducing the stability by the collection unit. the information processing apparatus according to 請 Motomeko 1 you calculated as the stability of which was not the product information. When the stability of the product information that has not been collected by the collection unit is a predetermined maximum value, the calculation unit calculates a value equal to or less than the lower limit value as the product information that has not been collected by the collection unit. the information processing apparatus according to 請 Motomeko 2 you calculated as stability. The calculation means, when the stability of the product information not collected by the collection means is higher than the initial value and lower than the maximum value, is a predetermined minimum that is higher than the lower limit value and lower than the initial value. the value, the information processing apparatus according to 請 Motomeko 3 you calculated as the stability of the product information that has not been collected by the collection means. Computer
A collection unit that collects product information indicating the product detected by the detection unit from a wireless tag attached to the product displayed on the product shelf;
Calculating means for calculating a degree of stability indicating the degree of continuous detection of the product information for each of the product information detected by the detection unit according to the product information collected by the collection unit;
Function as notification means for notifying the higher system as the detection history of the product information, the product information in which the stability calculated by the calculation means is higher than a predetermined lower limit ,
When the stability of the product information collected by the collection unit is equal to or lower than the lower limit value, the calculation unit calculates a predetermined initial value higher than the lower limit value of the product information collected by the collection unit. When the stability of the product information calculated by the collection means is higher than the lower limit value, the value obtained by increasing the stability of the product information collected by the collection means is calculated as the stability. The program which calculates as the said stability of the said merchandise information collected by . When the stability of the product information not collected by the collection unit is higher than the lower limit value and less than or equal to the initial value, the calculation unit collects a value obtained by reducing the stability by the collection unit. The program according to claim 5, wherein the program is calculated as the stability of the product information that has not existed.

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