JP2008191899A - Communication device, tag device and information communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication device, a tag device and an information communication system, preventing specific information from being updated without restriction. <P>SOLUTION: According to the tag radio communication system 60, an operation ID 18a3 (specific information) can be updated when an initial flag 18a1 stored in a tag information memory 18 is ON, and the update of the operation ID 18a3 can be prohibited when the initial flag 18a1 is OFF. The initial flag 18a1 is always turned OFF when label information is updated. The label information (including the initial flag 18a) stored in the tag information memory 18 can be updated only when an input operator code coincides with a stored operator code. Accordingly, by providing the operator code, the operation ID 18a3 or other label information can be prevented from being updated without restriction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a communication device, a tag device, and an information communication system, and more particularly, to a communication device, a tag device, and an information communication system that can prevent specific information from being updated without restriction.

  As disclosed in Japanese Patent Application Laid-Open No. 2005-165621 (Patent Document 1), a reader / writer device (hereinafter referred to as “communication device”) as a communication device, and a plurality of non-contact identifications attached to a product or the like A contactless data communication system including a tag (hereinafter referred to as “tag device”) is known. In this non-contact data communication system, information stored in the tag device can be read or rewritten by the communication device. Further, since various information is recorded in the tag device, it is not preferable that the information is illegally accessed and the information is read or rewritten. For this reason, when the tag device is removed from the product, information is not transmitted from the tag device to the communication device to prevent unauthorized reading of information. Furthermore, since the access record of the communication device can be displayed, it is possible to discover that the access has been made illegally by checking the access record.

  However, even if an unauthorized access can be found by displaying an access record, information may have been read or information may have been rewritten because it has already been accessed by a communication device. is there.

Therefore, as a method of prohibiting unauthorized access and reading or rewriting of information, an ID code unique to the tag device (hereinafter referred to as “specific information”) is stored in advance in the tag device, and the specific information matches. There is known a method for setting permission or prohibition of access (predetermined operation) depending on whether or not the access has been made.
JP 2005-165621 A

  However, when this specific information is shared with an ID used in a database, etc., if the specific information can be rewritten without restriction, consistency with the ID in the database cannot be obtained. There was a problem.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a communication device, a tag device, and an information communication system that can prevent specific information from being updated without restriction. .

  In order to achieve this object, the communication device according to claim 1 is configured to be able to communicate with a tag device attached to each of a plurality of objects, and to specify an object to which the tag device is attached. Storage means storing information and initial information indicating whether or not the tag device is in an initial state, specific information updating means for updating the specific information, and the initial information stored in the storage means A first discriminating unit that discriminates whether or not the initial information indicates an initial state; and when the initial discriminating unit determines that the initial information indicates an initial state, the specific information updating unit Sets permission to update specific information, and sets prohibition of updating of the specific information by the specific information updating unit when the first determining unit determines that the initial information does not indicate an initial state. And a first initial information updating unit that updates the initial information to information that does not indicate the initial state when permission to update the specific information is set by the first setting unit. I have.

  The initial information and the specific information stored in the storage unit may be stored in advance, or may be acquired from the storage unit provided in the tag device and temporarily stored. It may be obtained from a storage device (for example, a storage device on a network) that can communicate with the communication device and temporarily stored.

  The communication device according to claim 2 is the communication device according to claim 1, wherein the specific information update unit is configured to input new specific information using the input unit and input information stored in the storage unit. Updating means for updating the inputted new specific information.

  The communication device according to claim 3 is the communication device according to claim 1 or 2, wherein the storage unit stores other information different from the specific information together with the specific information. Whether or not the other information update means for updating the information, the selection means for selecting the predetermined specific information, the specific information selected by the selection means, and the specific information stored in the storage means And a first notification means for notifying the information before updating by the other information update means when it is determined that the second determination means is not the corresponding information.

  The communication device according to claim 4 is the communication device according to claim 1 or 2, wherein the storage unit stores other information different from the specific information together with the specific information. Whether or not the other information update means for updating the information, the selection means for selecting the predetermined specific information, the specific information selected by the selection means, and the specific information stored in the storage means And second setting means for setting prohibition of updating of the other information by the other information updating means when it is determined that the second determining means is not corresponding information. Yes.

  The communication device according to claim 5 is the communication device according to any one of claims 1 to 4, wherein the selecting means for selecting predetermined specific information, the specific information selected by the selecting means, and the storage means Second discriminating means for discriminating whether or not the stored specific information is corresponding information; and second initial information updating means for updating the initial information stored in the storage means to information indicating an initial state; The initial information is updated to information that does not indicate the initial state by the first initial information update means, and the specific information selected by the selection means by the second determination means and the specific information stored in the storage means And third setting means for setting permission to update the information indicating the initial state of the initial information by the second initial information updating means when it is determined that the information corresponds to the information. .

  In addition, in claims 3 to 5, the selection means may select one specific information from a plurality of specific information stored in advance in the storage means, or select one specific information given uniquely to the communication device Alternatively, specific information may be input and selected by the operator.

  The communication device according to claim 6 is the communication device according to any one of claims 1 to 5, wherein the initial information indicates an initial state when the initial information is an initial value, and the first initial value updating means. When the permission for updating the specific information is set by the first setting means, the initial information is updated to a value different from the initial value.

  The communication apparatus according to claim 7 is the communication apparatus according to any one of claims 1 to 6, wherein the other information is based on one object and other objects excluding the object serving as a reference. Hierarchy information indicating an upper layer, a lower layer, or an isotope layer.

  The tag device according to claim 8 is attached to each of a plurality of objects, and specific information for specifying the object and whether or not the tag device attached to the object is in an initial state. Determining means for acquiring initial information indicating the initial information, specific information updating means for updating the specific information, and third information for determining whether or not the initial information acquired by the acquiring means indicates an initial state. When the initial information indicates an initial state by the determining means and the third determining means, permission to update the specific information by the specific information updating means is set, and the initial information is set by the third determining means. And fourth setting means for setting prohibition of updating of the specific information by the specific information update means when it is determined that the information does not indicate the initial state.

  Note that the initial information and specific information acquired by the acquisition unit may be acquired in advance in the storage unit provided in the tag device, or may be acquired from the storage unit provided in the communication device. Alternatively, it may be acquired from a storage device (for example, a storage device on a network) that can communicate with the tag device.

  Further, the “communication device” described in claims 2 to 7 is read as “tag device”, and each information (initial information, specific information, and other information) stored in the storage unit is acquired by the acquisition unit. Each information (initial information, specific information, and other information) may be read and subordinate to claim 8.

  The information communication system according to claim 9 includes a tag device attached to each of a plurality of objects, and a communication device configured to be able to communicate with the tag device, wherein the communication device includes the tag device. Specific information for identifying the object on which the device is mounted, initial information indicating whether the tag device is in an initial state, storage means for storing the specific information, and specific information update means for updating the specific information, First determination means for determining whether or not the initial information stored in the storage means indicates an initial state, and the first determination means determines that the initial information indicates an initial state In this case, when the specific information updating means sets permission to update the specific information and the first determining means determines that the initial information does not indicate an initial state, the specific information updating means Wherein and a first setting means for setting the prohibition of updating the specific information that.

  The initial information and the specific information stored in the storage unit may be stored in advance, or may be acquired from the storage unit provided in the tag device and temporarily stored. It may be obtained from a storage device (for example, a storage device on a network) that can communicate with the communication device and temporarily stored.

  Further, the “communication device” described in claims 2 to 7 may be read as “information communication system” and subordinate to the information communication system described in claim 9.

  The information communication system according to claim 10 includes a tag device attached to each of a plurality of objects, and a communication device configured to be able to communicate with the tag device, wherein the tag device includes the object. Acquisition means for acquiring specific information for specifying the initial information indicating whether the tag device attached to the object is in an initial state, specific information update means for updating the specific information, and the acquisition A third discriminating means for discriminating whether or not the initial information acquired by the means indicates an initial state; and the identification information when the initial information indicates the initial state by the third discriminating means. When the permission of updating the specific information by the information updating unit is set, and the third determining unit determines that the initial information does not indicate the initial state, the specific information updating unit And a fourth setting means for setting the prohibition of updating the specific information.

  Note that the initial information and specific information acquired by the acquisition unit may be acquired in advance in the storage unit provided in the tag device, or may be acquired from the storage unit provided in the communication device. Alternatively, it may be acquired from a storage device (for example, a storage device on a network) that can communicate with the tag device.

  Further, the “communication device” described in claims 2 to 7 is read as “information communication system” and each information (initial information, specific information and other information) stored in the storage means is acquired by the acquisition means. Each information (initial information, specific information, and other information) may be read and subordinate to claim 10.

  According to the communication apparatus of the first aspect, the storage unit stores the specific information and the initial information, and whether or not the initial information stored in the storage unit indicates the initial state is first. When it is determined by the determining means and it is determined that the initial information indicates the initial state, permission for updating the specific information by the specific information updating means is set by the first setting means, and the initial information is changed to the initial state. If it is determined that the specified information is not shown, the first setting unit prohibits updating of the specific information by the specific information updating unit. When the permission for updating the specific information is set by the first setting means, the initial information is updated by the first initial information updating means to information that does not indicate the initial state. Therefore, when the initial information stored in the storage means indicates the initial state, the specific information for specifying the object can be updated. Further, when the permission for updating the specific information is set, the initial information is Since the information is updated to information that does not indicate the initial state, updating of the specific information thereafter can be prohibited. Therefore, there is an effect that it is possible to prevent the specific information from being updated without restriction depending on whether or not the initial information indicates an initial state.

  When the specific information is stored in the database provided in the external device and the specific information is commonly used in the external device, the specific information on the database side is easily updated when the specific information of the tag device is easily updated. And the specific information on the tag device side cannot be matched. However, according to the present invention, when the initial information is updated to information that does not indicate the initial state, the updating of the specific information after that is prohibited, so that the consistency of the specific information can be prevented from being lost. There is an effect that can be done.

  According to the communication device of the second aspect, in addition to the effect produced by the communication device of the first aspect, for the update of the specific information, new specific information is input by the input means and stored in the storage means by the update means. The specific information is updated to new specific information input by the input means. Therefore, since new specific information is input by the user's operation, it is possible to prevent the specific information from being known to anyone other than the user and to prevent unauthorized reading or rewriting of information. .

  According to the communication device according to claim 3, in addition to the effect produced by the communication device according to claim 1 or 2, the storage means stores other information different from the specific information together with the specific information. This information is updated by other information updating means. When the specific information is selected by the selecting means and the second determining means determines that the selected specific information and the specific information stored in the storage means are not corresponding information, the other information updating means Before the other information is updated, this is notified by the first notification means. Therefore, when a user who does not know the specific information selects the specific information and tries to update other information, the first notification means notifies the user. Here, for example, when the communication device and the tag device have a display unit, the notification by the first notification unit can display an indication indicating an unauthorized update, or can indicate an unauthorized update by sound. Therefore, by notifying by the first notification means, the user who knows the specific information can recognize that the selection of the specific information is wrong, and tries to perform an unauthorized update without knowing the specific information. In this case, there is an effect that it is possible to suggest that the update is unauthorized.

  According to the communication device according to claim 4, in addition to the effect produced by the communication device according to claim 1 or 2, the storage means stores other information different from the specific information together with the specific information. This information is updated by other information updating means. When the specific information is selected by the selecting means and the second determining means determines that the selected specific information and the specific information stored in the storage means are not corresponding information, the other information updating means Prohibition of updating other information is set by the second setting means. Therefore, when a user who does not know the specific information selects the specific information and tries to update other information, the other information is prohibited from being updated. There is an effect that it is possible to prevent the update.

  According to the communication device of the fifth aspect, in addition to the effect produced by the communication device according to any one of the first to fourth aspects, the initial information is configured as information that does not indicate the initial state by the first initial information update means. In addition, if the second determination unit determines that the predetermined specific information selected by the selection unit and the specific information stored in the storage unit correspond to each other, the initial information updated by the second initial information update unit The permission for updating the information indicating the initial state is set by the third setting means. Therefore, after the specific information is updated by the user and the initial information is updated to information that does not indicate the initial state, the specific information selected by the user corresponds to the specific information stored in the storage means. In some cases, the initial information can be updated again to information indicating the initial state. Therefore, a user who knows the specific information can update other information, and can also update the specific information, so that the usability can be improved compared to the case where the specific information cannot be updated at all. . Moreover, there is an effect that the risk of unauthorized access can be reduced by periodically changing the specific information.

  According to the communication device of the sixth aspect, in addition to the effect produced by the communication device according to any one of the first to fifth aspects, the initial information indicates an initial state when the initial information is an initial value. The initial value updating means updates the initial information to a value different from the initial value when the permission of updating the specific information is set by the first setting means, so that the initial information does not reliably indicate the initial state. There is an effect that it can be updated.

  According to the communication device of the seventh aspect, in addition to the effect produced by the communication device according to any one of the first to sixth aspects, the other information is based on one of a plurality of objects. Each of the other objects excluding the object has a hierarchical structure that indicates the upper layer, lower layer, or isotope of the reference object, so multiple objects can be checked by checking the hierarchical structure. There is an effect that it is possible to grasp the hierarchical position of.

  In addition, since the hierarchical structure becomes complicated information, it is difficult to recover information when the hierarchical structure is updated. If the specific information can be updated indefinitely by the user, the information in the hierarchical structure is also easily updated, but the specific information selected by the selection means and the specific information stored in the storage means are not corresponding information The configuration in which prohibition of updating is set in the item has an effect of preventing the hierarchical structure from being easily updated.

  According to the tag device of the eighth aspect, the specific information and the initial information are acquired by the acquisition unit, and whether or not the initial information acquired by the acquisition unit indicates an initial state is determined by the third determination unit. Determined. When the third determining means determines that the initial information indicates the initial state, permission for updating the specific information by the specific information updating means is set by the fourth setting means, and the initial information indicates the initial state. If it is determined that it is not, the fourth setting unit prohibits the updating of the specific information by the specific information updating unit. Therefore, depending on whether or not the initial information acquired by the acquisition means indicates the initial state, it is possible to set permission or prohibition of updating the specific information that identifies the object. There is an effect that it can be limited based on.

  Further, when specific information is stored in a database provided in the external device and the specific information is commonly used in the external device, the database side can be updated if the specific information can be easily updated in the tag device. Therefore, it is not possible to maintain consistency between the specific information and the specific information on the other tag device side that commonly uses the specific information. However, according to the present invention, when the initial information is updated to information that does not indicate the initial state, the updating of the specific information after that is prohibited, so that the consistency of the specific information can be prevented from being lost. There is an effect that can be done.

  According to the information communication system of the ninth aspect, the storage means stores the specific information and the initial information, and whether or not the initial information stored in the storage means indicates the initial state. When the first information is determined and the initial information is determined to indicate the initial state, permission for updating the specific information by the specific information updating unit is set by the first setting unit, and the initial information is in the initial state. If it is determined that the specific information is not indicated, the first setting unit prohibits the updating of the specific information by the specific information updating unit. Therefore, depending on whether or not the initial information stored in the storage means indicates the initial state, it is possible to set permission or prohibition of the update of the specific information that identifies the object, so the update of the specific information There is an effect that it can be limited based on.

  Further, when specific information is stored in a database provided in the external device and the specific information is commonly used in the external device, when the specific information of the tag device is easily updated, the database side Consistency cannot be obtained between the specific information and the specific information on the tag device side. However, according to the present invention, when the initial information is updated to information that does not indicate the initial state, the updating of the specific information after that is prohibited, so that the consistency of the specific information can be prevented from being lost. There is an effect that can be done.

  According to the information communication system of claim 10, the specific information and the initial information are acquired by the acquiring means, and whether or not the initial information acquired by the acquiring means indicates an initial state is determined by the third determining means. Is determined. When the third determining means determines that the initial information indicates the initial state, permission for updating the specific information by the specific information updating means is set by the fourth setting means, and the initial information indicates the initial state. If it is determined that it is not, the fourth setting unit prohibits the updating of the specific information by the specific information updating unit. Therefore, depending on whether or not the initial information acquired by the acquisition means indicates the initial state, it is possible to set permission or prohibition of updating the specific information that identifies the object. There is an effect that it can be limited based on.

  Further, when specific information is stored in a database provided in the external device and the specific information is commonly used in the external device, the database side can be updated if the specific information can be easily updated in the tag device. Therefore, it is not possible to maintain consistency between the specific information and the specific information on the other tag device side that commonly uses the specific information. However, according to the present invention, when the initial information is updated to information that does not indicate the initial state, the updating of the specific information after that is prohibited, so that the consistency of the specific information can be prevented from being lost. There is an effect that can be done.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing the configuration of a tag wireless communication system 60 of the present invention. The tag wireless communication system 60 mainly includes a plurality of wireless tag devices 10 and a reader / writer device 30, and the plurality of wireless tag devices 10 and the reader / writer device 30 are configured to be capable of wireless communication. Yes.

  As shown in FIG. 1, the wireless tag device 10 is mounted on the spine of the binder 2, and the binder 2 is stored in a bookshelf 70. Although the RFID tag device 10 is attached to the back cover of the binder 2, the RFID tag device 10 may be attached to a CD, a DVD, a box, or the like, or attached to the bookshelf 70, or may be attached to anything.

  As shown in FIG. 1, the wireless tag device 10 includes a tag antenna 11, a tag display 12, and a tag IC circuit unit 13. The tag antenna 11 receives the information transmitted from the reader / writer device 30, outputs the received information to the tag IC circuit unit 13, and outputs the information output from the tag IC circuit 13 to the reader / writer device. 30 and has a transmission / reception circuit. The tag display 12 is a non-volatile display device that employs an electrophoresis system that can change the display according to a control signal output from the tag IC circuit unit 13. The tag IC circuit section 13 is a control section for setting information such as the name of the binder 2 displayed on the tag display 12.

  Here, the electrophoresis system employed in the tag display 12 will be described. The electrophoretic phenomenon, which is the principle of operation of an electropermanent display device, is that when an electric field is applied to a dispersion liquid in which fine particles are dispersed in a liquid phase dispersion medium, charged particles (electrophoretic particles) are subjected to Coulomb force. This is a phenomenon that moves. This electrophoretic display device has display image holding performance and can hold an image once displayed by application of an electric field.

  The reader / writer device 30 is a device that performs wireless communication with the wireless tag device 10, and includes an antenna 31, a display 32, and a keyboard 33. The antenna 11 receives information transmitted from the wireless tag device 10 and transmits information output from the reader / writer device 30. The display 32 is a display device using liquid crystal. The keyboard 33 is operated to input information to be transmitted to the RFID tag device 10 or to change the function of the reader / writer device 30. The cross button 34, the function button 35, the decision button 37, a plurality of round buttons 38, and the like. It has.

  The cross button 34 is a button operated when selecting information displayed on the display 32. For example, when a plurality of pieces of information are displayed on the display 32, if the cross button 34 is operated upward, the cursor displayed on the display 32 moves up by one and the selected information is changed. .

  The function button 35 is a button operated when changing the function of the reader / writer device 30. In this embodiment, each time the function button 35 is operated, the processing to be executed is changed. As one of the processes executed by the reader / writer device 30, there is a data rewriting process (see FIGS. 4 to 9) for rewriting the label information stored in the wireless tag device 10, and the data rewriting process will be described later. . As other processes to be executed, for example, a search process for searching for a desired RFID tag device 10, or label information stored in the RFID tag device 10 and label information stored in the reader / writer device 30 are collated. There is a reference process.

  The determination button 37 is a button operated when determining information displayed on the display 32 or determining (determining) an answer to an inquiry to the operator (searcher). By operating the determination button 37, the input to the reader / writer device 30 is determined.

  The round button 38 is a button operated to input characters and the like, and is arranged in a portion surrounded by a broken line in the keyboard 33 as shown in FIG. Since various characters and the like are assigned to the round buttons 38, desired characters and the like are input by operating the round buttons 38. The input characters and the like are displayed on the display 32. In addition, a character etc. here is a meaning including a character, a number, and a symbol.

  Next, with reference to FIG. 2, the electrical configuration of the wireless tag device 10 and the reader / writer device 30 will be described. 2 is a block diagram showing an electrical configuration of the wireless tag device 10 and the reader / writer device 30, FIG. 2 (a) is a block diagram of the wireless tag device 10, and FIG. 2 (b) is a reader / writer. 2 is a block diagram of a writer device 30. FIG.

  First, the electrical configuration of the wireless tag device 10 will be described with reference to FIG. As described above, the wireless tag device 10 includes the tag antenna 11, the tag display 12, and the tag IC circuit 13. Further, the tag IC circuit 13 mainly includes a tag transceiver 14, a tag CPU 15, a tag ROM 16, a tag RAM 17, a tag flash memory 18, and a tag input / output port 19. ing.

  The tag transceiver 14 is connected to the tag antenna 11 via the signal line 20 and is information transmitted from the wireless tag device 10, transmitted from the reader / writer device 30, and received by the tag antenna 11. This is a device in which a transmitting device that modulates the transmitted high-frequency current and sends it back to the tag antenna 11 again and a receiving device that extracts necessary information from the high-frequency current received by the tag antenna 11 are integrated. Further, the tag transceiver 14 is connected to the tag input / output port 19 via the bus line 21, and after extracting necessary information from the received high-frequency current, the extracted information is input to the tag input / output. A function for outputting to the port 19 and a function for receiving information input from the tag input / output port 19 are provided.

  Therefore, when the tag antenna 11 receives the radio wave transmitted from the reader / writer device 30, the received radio wave is converted into a high frequency current by the tag antenna 11, and the converted high frequency current is transmitted through the signal line 20. To the tag transceiver 14. Then, the tag transceiver 14 extracts necessary information from the input high-frequency current, and outputs the extracted necessary information to the tag input / output port 19 via the bus line 21. Further, when transmitting information from the RFID tag device 10 to the reader / writer device 30, the tag transceiver 14 receives the information input from the tag input / output port 19 via the bus line 21, and the received information is received. The high-frequency current that is information and is received by the tag antenna 11 is modulated and output to the tag antenna 11. The output high-frequency current is converted into a radio wave by the tag antenna 11 and transmitted to the reader / writer device 30.

  Although the tag CPU 15 is normally in a sleep state, when the tag transceiver 14 detects a high-frequency current received from the reader / writer device 30, the tag CPU 15 wakes up by outputting the information to the bus line 21. The tag CPU 15, tag ROM 16, tag RAM 17, tag flash memory 18, and tag display 12 are driven by a paper battery 24.

  The tag CPU 15 is an arithmetic unit that controls each unit connected by the bus line 22. The tag ROM 16 is a non-rewritable nonvolatile memory that stores a control program (for example, the flowcharts shown in FIGS. 9 and 10) executed by the tag CPU 15. The tag RAM 17 is a memory that temporarily stores various types of information when the control program is executed.

  The tag flash memory 18 is a rewritable nonvolatile memory for storing information transmitted from the reader / writer device 30 and includes a tag information memory 18a and a tag hierarchical structure information memory 18b. The tag information memory 18a stores label information including each piece of information for specifying the wireless tag device 10, and the tag hierarchical structure information memory 18b stores information on the hierarchical structure in the group to which the wireless tag device 10 belongs. It is remembered.

  Further, the label information stored in the tag information memory 18 a can be rewritten by information transmitted from the reader / writer device 30. For example, when a radio wave in which label information is converted into a signal is transmitted from the reader / writer device 30, the radio wave is received by the tag antenna 11, and the label information is taken out by the tag transceiver 14, and the taken out label Information is output to the tag input / output port 19 via the bus line 21. Then, the tag CPU 15 issues an instruction to store the extracted label information, and the extracted label information is stored in the tag information memory 18 a via the bus line 22. As a result, the information stored in the tag information memory 18 a is rewritten by information transmitted from the reader / writer device 30. The tag hierarchical structure information memory 18b is similarly rewritten by information transmitted from the reader / writer device 30. A detailed description of rewriting the label information will be given later.

  When label information is transmitted, the tag CPU 15 issues a label information read command from the tag information memory 18 a and outputs the label information to the tag transceiver 14 via the tag input / output port 19. The The output label information is converted into a high-frequency current signal by the tag transceiver 14 and transmitted from the tag antenna 11.

  Further, when displaying on the tag display 12 based on the information stored in the tag information memory 18a, necessary information (display data or characters) is received from the tag information memory 18a by an instruction from the tag CPU 15, for example. Column data) is read and displayed on the tag display 12.

  Here, the label information stored in the tag information memory 18a of the wireless tag device 10 will be described with reference to FIG. 3 and FIG. FIG. 3 is a diagram showing label information stored in the tag information memory 18a of the wireless tag device 10, and FIG. 4 is a schematic diagram showing a hierarchical structure of a plurality of objects.

  The label information stored in the tag information memory 18a of the wireless tag device 10 and the label information stored in the storage information memory 49a of the reader / writer device 30 are composed of the same information. Therefore, in the description of FIG. 3, the label information stored in the tag information memory 18a will be described, and the description of the label information stored in the storage information memory 49a will be omitted. In FIG. 3, reference numerals 18a1 to 18a32 and 49a1 to 49a32 are assigned to the tag information memory 18a and the storage information memory 49a.

  As shown in FIG. 3, the tag information memory 18a has a plurality of storage areas, and a flag 18a1, ID 18a2, operation ID 18a3, creator code 18a4, Operation permission range 18a5, write protect 18a6, password 18a7, operator code 18a8, update date 18a9, change date A18a10, change date B18a11, display designation date 18a12, waiting date 18a13, searcher code The history 18a14 is stored.

  A part of the plurality of storage areas of the tag information memory 18a is a display data area 18a15, a template area 18a16, a display data write protect area 18a17, a template write protect area 18a18, and a rewrite data area. 18a19, rewrite template area 18a20, rewrite data area 18a21, display designated date display data area 18a22, display designated date display template area 18a23, waiting days display data area 18a24, and waiting days template. Area 18a25.

  For the first time, the flag 18a1 is a flag indicating that the wireless tag device 10 is in an initial state. The ID 18a2 is information unique to the wireless tag device 10 predetermined at the time of shipment from the manufacturer, and is configured so as not to be rewritten. The operation ID 18a3 is information that can be rewritten by the user, and is referred to when other information 18a4 to 18a32 is updated. The creator code 18a4 is information for specifying the reader / writer device 30 and the specific user who updated the operation ID 18a3, and is updated when the operation ID 18a3 is updated. The operation permission range 18a5 is information for designating the operable reader / writer device 30 and the user, and is updated when the operation ID 18a3 is updated. The write protect 18a6 is information for setting permission or prohibition of writing, and is updated when the operation ID 18a3 is updated. The password 18a7 is a password for changing the write protect 18a6 to write permission, and is updated when the operation ID 18a3 is updated. The operation code 18a8 is information for identifying the reader / writer device 30 and the user who have communicated with the wireless tag device 10, and can be stored a predetermined number of times. The update date 18a9 is information on the date and time when the operation ID 18a3 was updated, and the date and time for a predetermined number of times can be stored. The change date A18a10 and the change date B18a11 are information on the date and time when the information 18a15 to 18a32 is changed, and can store a predetermined number of times. The display designated date 18a12 is information on the date and time when the display on the display 12 is changed, and the waiting date 18a13 is information on the date and time when the countdown starts with respect to the date and time designated by the display designated date 18a12. The search code history 18a14 is information for specifying the date and time when the RFID tag device 10 was searched, the reader / writer device 30 and the user who searched for it, and can store a history for a predetermined number of times. The display data write protect area 18a17 is information for prohibiting reading of display information stored in a display data area 18a15 described later. The template write protect 18a18 is information that prohibits reading of display information stored in a template area 18a16 described later.

  The display data area 18a15 stores display information to be displayed on the display 12. The template area 18a16 stores display information as a template to be displayed on the display 12. The rewrite data area 18a19 stores character strings to be displayed on the display 12. The rewrite template area 18a20 stores a character string as a template to be displayed on the display 12. The rewritten data area 18a21 stores information other than display information and character strings to be displayed on the display 12. The information stored in the rewrite data area 18a21 includes, for example, information for displaying the date and time, information indicating an outline of the binder 2, and the like. The display designated date display data area 18a22 stores information to be displayed on the display 12 when the date and time stored in the display designated date 18a12 is reached. The display designated date template area 18a23 stores information as a template to be displayed on the display 12 when the date and time stored in the display designated date 18a12 is reached. The waiting days display data area 18a24 stores information to be displayed on the display 12 when the date and time stored in the waiting days 18a13 is reached. The waiting day template 18a25 stores information as a template to be displayed on the display 12 when the date and time stored in the waiting day 18a13 is reached.

  Further, a part of the storage area of the tag hierarchical structure information memory 18b includes an upper layer 3 level 18a26, an upper layer 2 level 18a27, an upper layer 1 level 18a28, an isotope level 18a29, and a lower layer 1 level 18a30. The lower layer 2 level 18a31, the lower layer 3 level 18a32, and the hierarchical structure information 18a33 are stored.

  The upper layer 3 level 18a26 is layer position information of a label name whose layer position is located at the upper three levels with respect to the RFID tag device 10. The hierarchical position information will be described later with reference to FIG. The upper layer 2 level 18a27 is layer position information of a label name whose layer position is located at the upper two levels with respect to the wireless tag device 10. The upper layer 1 level 18a28 is layer position information of a label name whose layer position is positioned at the upper one level with respect to the wireless tag device 10. The isotope layer level 18a29 is layer position information of a label name whose layer position is in the same phase with respect to the wireless tag device 10. The lower layer 1 level 18a30 is the hierarchical position information of the label name whose hierarchical position is located at the lower one level with respect to the wireless tag device 10. The lower layer 1 level 18a31 is the hierarchical position information of the label name whose hierarchical position is at the lower two levels with respect to the RFID tag device 10. The lower layer 3 level 18a32 is layer position information of a label name whose layer position is located at the lower three levels with respect to the RFID tag device 10. In addition, each information 18a26-18a32 is provided with all the hierarchy position information of the some, when there are multiple label names of an upper layer, an isotopic layer, and a lower layer. As the label name, information that can identify the wireless tag device 10 such as an ID or an operation ID may be used.

  Here, with reference to FIG. 4, the hierarchical structure constructed | assembled from the hierarchical position information memorize | stored in each information 18a26-18a32 is demonstrated.

  As shown in FIG. 4, in the schematic diagram of the hierarchical structure, group name 51b1, label names 51b2 to 58b2, and hierarchical position information 51b3 to 58b3 in the hierarchical structure are shown. Note that the hierarchical structure information is a group of all the hierarchical position information 51b3 to 58b3, and is information including all the hierarchical position information 51b3 to 58b3. Information based on this hierarchical structure information is stored in 18a33.

  The group name 51b1 (indicating “group A”) is information indicating the name of a group composed of one or a plurality of wireless tag devices 10. The group name 51b1 is stored in the flash memory 18 of all the RFID tag devices 10 belonging to the group A and the flash memory 49 of the reader / writer device 30, respectively. In the present embodiment, since there are RFID tag devices 10 corresponding to the number of label names 51b2 to 58b2 in "Group A" shown in the group name 51b1, all RFID tag devices 10 belonging to "Group A" are present. There will be eight. The label names 51b2 to 58b2 indicate label names that identify the respective RFID tag devices 10, and are assigned to the respective RFID tag devices 10. The label names 51b2 to 58b2 are stored in the flash memory 18 of all the wireless tag devices 10 belonging to the group A, similarly to the group name 51b1.

  As described above, the hierarchical structure information is a collection of all the hierarchical position information 51b3 to 58b3, and indicates the hierarchical position of the wireless tag device 10 in the hierarchical structure. For example, from “A: ¥ B1 ¥ C1” which is the hierarchical structure position information 52b3, the label name B1 and the label name C1 belong to the group A, and the label name C1 is positioned at the lower layer 1 level of the label name B1. It has been shown that. Further, from “A: ¥ B1 ¥ C1 ¥ D1 ¥ E1” and “A: ¥ B1 ¥ C1 ¥ D1 ¥ E2” which are the hierarchical structure position information 54b3 and 57b3, the label name E1 and the label name E2 are the same layer. It is shown that it is positioned in the level. Although not described in detail, the other hierarchy position information 51b3 to 51b8 similarly indicates the hierarchy level in the group.

  Next, the electrical configuration of the reader / writer device 30 will be described with reference to FIG. The reader / writer device 30 includes an antenna 31, a display 32, a keyboard 33, an input / output port 40, a CPU 46, a ROM 47, a RAM 48, a flash memory 49, and a transceiver 50. The transmitter / receiver 50 operates in the same manner as the transmitter / receiver 14 of the wireless tag device 10, and thus detailed description thereof is omitted.

  The CPU 46 is an arithmetic unit that controls each unit connected by the bus line 43. The ROM 47 is a non-rewritable nonvolatile memory that stores a control program (for example, flowcharts shown in FIGS. 5 to 8) executed by the CPU 46 and various tables. The RAM 48 is a memory that temporarily stores information used when the control program is executed and information transmitted from the wireless tag device 10. The flash memory 49 is a rewritable nonvolatile memory that stores information to be transmitted to the wireless tag device 10 and hierarchical structure information. Various types of information stored in the flash memory 49 can be changed by input from the keyboard 33 connected to the input / output port 40 via the bus line 45. Various information stored in the flash memory 49 can be displayed on the display 32 via the bus line 44 connected to the input / output port 40.

  The RAM 48 includes a reception information memory 48a and a reception hierarchical structure information memory 48b. The reception information memory 48 a is a memory that temporarily stores the transmitted information when the label information stored in the tag information memory 18 a of the wireless tag device 10 is transmitted from the wireless tag device 10. Similarly, the reception hierarchical structure information memory 48b is a memory for temporarily storing information transmitted from the wireless tag device 10.

  The flash memory 49 includes a storage information memory 49a and a storage hierarchical structure information memory 49b. The storage information memory 49a stores label information (see FIG. 3) configured by information for identifying the wireless tag device 10. Note that the storage information memory 49a stores as many pieces of label information as the RFID tag device 10. Similarly, the storage hierarchical structure information memory 49b stores as many pieces of label information as the number of the RFID tag devices 10. However, since the hierarchical structure is determined for each group, the number of RFID tag devices 10 is not necessary, and one hierarchical structure may be stored for each group.

  The information stored in the storage information memory 49 a and the storage hierarchical structure information memory 49 b can be rewritten by information transmitted from the wireless tag device 10. For example, when a radio wave with converted label information is transmitted from the RFID tag device 10, the radio wave is received by the antenna 31, and the label information is extracted by the transceiver 50, and the extracted label information passes through the bus line 42. To the input / output port 40. Then, the CPU 46 issues a storage instruction for the extracted label information, and the extracted label information is stored in the storage information memory 49 a via the bus line 43. Thus, the label stored in the reader / writer device 30 and the wireless tag device 10 by receiving the label information from the wireless tag device 10 and updating the storage information memory 49a and the storage hierarchical structure information memory 49b. It is possible to prevent the information from being different.

  The information stored in the storage information memory 49 a and the storage hierarchical structure information memory 49 b can be displayed on the display 32 by operating the keyboard 33. For example, when a predetermined label information read operation is performed by operating the keyboard 33, the CPU 46 issues a label information read command, and the label information is read from the storage information memory 49a. The CPU 46 instructs the display 32 to display the group name, label name, and hierarchical structure information using the read label information. Furthermore, the information displayed on the display 32 can be rewritten by input from the keyboard 33, and the rewritten information can be stored in the storage information memory 49a or the storage hierarchical structure information memory 49b.

  Here, the data rewriting process executed by the CPU 46 of the reader / writer device 30 will be described with reference to FIGS. FIG. 5 is a flowchart showing data rewrite processing executed by the CPU 46 of the reader / writer device 30. The data rewriting process is executed when the function button 36 of the reader / writer device 30 is operated, the data rewriting process is selected by the cross button 34, and determined by the determination button 37.

  When the data rewriting process is executed, the label information is read from the target wireless tag device 10 touched by the user with the reader / writer device 30, and the group name and the label name are displayed on the display 32 based on the read label information ( S1). For example, “group A / label B1”, “new label”, and the like are displayed on the display 32. Therefore, the user can confirm whether or not the RFID tag device 10 to be rewritten is desired. Therefore, a desired tag can be determined by moving the cursor position with the cross button 34 and operating the determination button 37.

  In the process of S2, it is determined whether or not the label (target wireless tag device 10) has been determined by the user (S2). If the label has not been determined (S2: No), S2 is performed until the label is determined. Repeat the process. On the other hand, when the label is determined by the user (S2: Yes), an operator code input screen is then displayed on the display 32 of the reader / writer device 30 (S3), and the input of the operator code is completed by the user. Is determined (S4).

  When the operator code input screen is displayed on the display 32 in the process of S3, the user operates the round button 38 to input the operator code. Then, by operating the determination button 37, it is determined that the input of the operator code is confirmed and the input is completed in the process of S4.

  If it is determined in the process of S4 that the input of the operator code is not completed by the user (S4: No), the process of S4 is repeatedly executed until the input of the operator code is completed by the user. When the input of the person code is completed (S4: Yes), the process proceeds to S5.

  In the process of S5, the update type for updating the file name information determined in the processes of S1 and S2 is displayed on the display 32 (S5). On the display 32, “new creation”, “update”, and “recycle” are displayed. The user can select and determine any one update type using the cross button 34 and the determination button 37.

  In the processes after S6, the update type determined by the user is determined (S6 to S8), the process corresponding to the determined update type is executed (S9 to 11), and the data rewriting process is terminated. Specifically, first, it is determined whether or not the update type determined by the user is “new creation” (S6). If it is a new creation (S6: Yes), a new creation process is executed (S9). Then, the data rewriting process is terminated. If the update type determined by the user is not newly created in the process of S6 (S6: No), it is determined whether or not the update type is “update” (S7), and the update type is update. If (S7: Yes), the update process is executed (S10), and the data rewrite process is terminated. If the update type determined by the user is not update in the process of S7 (S7: No), it is determined whether or not the update type is “recycle” (S8), and if the update type is recycle. (S8: Yes), the recycle process is executed (S11), and the data rewrite process is terminated. If the update type determined by the user is not recycled in the process of S8 (S8: No), the update type is not determined by the user, so the process returns to S6 and the update type is changed by the user. Until it is determined, the processes of S6 to S8 are repeatedly executed.

  Next, a new creation process executed by the CPU 46 of the reader / writer device 30 will be described with reference to FIG. FIG. 6 is a flowchart showing a new creation process executed by the CPU 46 of the reader / writer device 30. The new creation process is performed when the update type determined by the user in the data rewriting process (see FIG. 5) is “new creation” (S6: Yes) and in the update process (see FIG. 7) described later. This is executed when the flag 18a1 is turned on for the first time (S41: Yes).

  The new creation process is a process for creating new label information (information shown in FIG. 3) and storing the label information in the storage information memory 49a and the tag information memory 18a of the wireless tag device 10 in the initial state. is there. The wireless tag device 10 is in the initial state when it is used for the first time after being shipped from the factory, or when it is updated to the initial state by recycling described later.

  When the new creation processing is executed, it is determined whether or not the flag 49a1 is turned on for the first time in the label information determined in the processing of S1 and S2 of the data rewriting processing (see FIG. 5) and temporarily stored in the RAM 48. (S21) If the flag 49a1 is turned on for the first time (S21: Yes), the RFID tag 10 determined in the process of S2 will be used for the first time after being shipped from the factory, or by the recycling process described later. Since the initial state is set, a new operation ID 49a3 is set (S22). Once the operation ID 49a3 is set, information that needs to be updated is set from among 49a4 to 49a32 other than the information 49a1 to 49a3 (S23). In addition, when setting operation ID49a3, it is good also as what sets ID49a2 to the same information. With this configuration, when the flag 49a1 is turned on for the first time, the factory-shipped ID 49a2 can be rewritten.

  In the process of S 22, an operation ID input screen is displayed on the display 32, and the user can input a new operation ID using the round button 38 and set it using the enter button 37. In the processing of S23, the updatable items of the information 49a4 to 49a32 are displayed on the display 32, the items that need to be updated are determined by the cross button 34 and the determination button 37, and the information to be updated is displayed by the circle button 38. Input or read information from ROM 47 such as character string and template information. In the process of S23, since a new password is input by the user, it is possible to prevent the password from being known to other than the input user.

  When the setting of the operation ID 49a3 and necessary information is completed in the processes of S22 and S23, the label information is not in the initial state, so the flag 49a1 is turned off for the first time (S24), and the process proceeds to S25. Note that, by turning off the flag 49a1 for the first time in the processing of S24, it is possible to prohibit the operation ID 49a3 from being updated even if new creation processing is executed thereafter.

  In the process of S25, the area corresponding to the operation ID 49a3 and necessary information in the storage information memory 49a is rewritten with the operation ID and necessary information set in the processes of S22 and S23 (S25), and the label information is stored in the RFID tag device 10. Is transmitted (S26), and the new creation process is terminated. Note that when the label information is transmitted to the wireless tag device 10 in the process of S26, a rewrite request instruction signal is transmitted and an operator code input by the user is also transmitted.

  Further, since a new operation ID 49a3 is set in the process of S22 and the new operation ID 49a3 is transmitted to the wireless tag device 10 in the process of S26, it can be said that the series of processes of S22 to S26 is a process of updating the operation ID 49a3. Therefore, the CPU 46 that executes a series of processes of S22 to S26 can be said to be an update means, and corresponds to an “update means” according to claim 2.

  On the other hand, if the flag 49a1 is OFF for the first time in the processing of S21 (S21: No), the information 49a4 to 49a32 is not already in the initial state even though the update type is determined to be “new creation” by the user. Therefore, it is notified that the label determined in the processing of S1 and S2 of the data rewriting processing (see FIG. 5) is in use (S31), and whether or not to update each information 49a4 to 49a32 other than the operation ID 49a3 The inquiry is displayed on the display 32 (S32). “Update of other data” and “end” are displayed on the display 32, and the user can select and decide either one with the cross button 34 or the decision button 37.

  In the process of S33, it is determined whether or not one of “update of other data” and “end” is determined by the user (S33), and until one of the two is determined by the user (S33: No). When the process of S33 is repeatedly executed and one of them is determined by the user (S33: Yes), it is determined whether or not to update each information 49a4 to 49a32 other than the operation ID 49a3 (S34).

  If it is determined in the process of S34 that the information 49a4 to 49a32 other than the operation ID 49a3 has been updated (S34: Yes), the update process is executed (S35), and the new creation process is terminated. On the other hand, if it is determined in the process of S34 that the information 49a4 to 49a32 other than the operation ID 49a3 has not been updated (S34: No), the new creation process is terminated without executing the update process.

  Next, update processing executed by the CPU 46 of the reader / writer device 30 will be described with reference to FIG. FIG. 7 is a flowchart showing update processing executed by the CPU 46 of the reader / writer device 30. In the update process, when the update type determined by the user in the data rewrite process (see FIG. 5) is “update” (S7: Yes), or each information other than the operation ID 49a3 in the new creation process (see FIG. 6) When it is determined that there is an update of 49a4 to 49a32 (S34: Yes), it is executed. Note that the update process is a process of rewriting necessary items among the pieces of information 49a4 to 49a32 when the wireless tag device 10 is not in the initial state.

  When the update process is executed, it is determined whether or not the flag 49a1 is turned on for the first time in the label information determined in the processes of S1 and S2 of the data rewriting process (see FIG. 5) and temporarily stored in the RAM 48 ( S41) If the flag 49a1 is turned on for the first time (S41: Yes), the label information is newly created, so after informing that (S42), a new creation process is executed (S43), and the update process Exit. In addition, as notification performed by the process of S42, that may be displayed on the display 32 or you may alert | report by an audio | voice. In addition, since the new creation process (see FIG. 6) described above is executed in the new creation process in S43, the description thereof is omitted.

  If the flag 49a1 is OFF for the first time in the process of S41 (S41: No), the operator code is acquired from the label information in the RAM 48 (S44), and the acquired operator code and the process of S3 of the data rewriting process are acquired. In step S45, it is determined whether the operator code input by the user matches.

  If the acquired operator code does not match the operator code input by the user in the process of S45 (S45: No), there is a possibility that the update is performed by a user who does not know the operator code. In order to prevent the label information from being rewritten, the process of S47 to S56 (setting and updating of label information) is not performed, an error is notified (S46), and the updating process is terminated. In other words, when the acquired operator code does not match the operator code input by the user, it is possible to set prohibition of updating the label information.

  On the other hand, if the operator code acquired in S44 matches the operator code input by the user in S45 (S45: Yes), the label information is updated by the user who knows the operator code. Then, necessary information update is set (S47), and the process proceeds to S48. The necessary information update setting is the same as the process of S23 of the new creation process (see FIG. 6), and the description thereof is omitted.

  In the process of S48, it is determined whether or not the operation ID 49a3 is included in the label information set to be updated in the process of S47 (S48). If the update of the operation ID 49a3 is set (S48: Yes). Then, the operation ID 49a3 is notified that it cannot be rewritten (S49), and the process returns to S47. Since the user recognizes that the update of the operation ID 49a3 has been set by the notification that the rewriting is not possible, the operation ID 49a3 is reset to the original state in the process of S47. Note that it is possible to prevent the operation ID 49a3 from being freely updated by determining whether or not the operation ID 49a3 is updated in the process of S48. In this embodiment, when the label information is updated, the operation ID 49a3 is prohibited from being updated. Therefore, when the operation ID 49a3 is set to be updated (S48: Yes), an error is notified. Then, the update process may be terminated (S46).

  On the other hand, if the update of the operation ID 49a3 is not set in the process of S48 (S48: No), the label information password 49a7 determined in the processes of S1 and S2 of the data rewriting process (see FIG. 5) is acquired. (S50), it is determined whether or not the acquired password 49a7 is in an initial state (S51).

  If the information of the password 49a7 is in the initial state in the process of S51 (S51: Yes), the password has not been set by the user, so the process proceeds to S55 in order to rewrite the label information, and the password If 49a7 is not in the initial state (S51: No), the password is set by the user, and the password input screen is displayed on the display 32 (S52). When the password input screen is displayed on the display 32, the user can enter the password using the circle button 38 and the enter button 37 to make a decision.

  In the process of S53, it is determined whether or not the password input is completed by the user (S53). If the password input is not completed (S53: No), the process of S53 is repeated until the password input is completed. When the password input is completed (S53: Yes), it is determined whether or not the input password matches the password acquired in S50 (S54).

  If the password entered by the user in S54 does not match the password 49a7 acquired in S50 (S54: No), the label information is updated by the user who does not know the password. Then, an error is notified (S46), and the update process is terminated. On the other hand, if the password input by the user matches the password 49a7 acquired in S50 (S54: Yes), the label information is updated by the user who knows the password. Therefore, the area corresponding to the label in the storage information memory 49a is rewritten with the label information set in the process of S47 (S55), the label information is transmitted to the wireless tag device 10 (S56), and the update process is terminated. To do.

  When label information is transmitted to the wireless tag device 10 in the process of S56, a rewrite request instruction signal is transmitted, and an operator code and a password input by the user are also transmitted.

  Next, a recycling process executed by the CPU 46 of the reader / writer device 30 will be described with reference to FIG. FIG. 8 is a flowchart showing a recycling process executed by the CPU 46 of the reader / writer device 30. The recycle process is executed when the update type determined by the user in the data rewrite process (see FIG. 5) is “recycle” (S8: Yes). The recycling process is a process for updating the information 49a3 to 49a32 including the operation ID 49a3 to the initial state.

  When the recycle process is executed, an operator code is acquired from the label information determined in the processes of S1 and S2 of the data rewrite process (see FIG. 5) (S61), and the acquired operator code and S3 It is determined whether or not the operator code input by the user in the process matches (S62).

  If the operator code acquired in S61 and the operator code input by the user do not match in S62 (S62: No), the label information is updated to the initial state by a user without operating authority. In order to prevent the label information from being illegally updated to the initial state, an error is generated without executing the processing of S64 to S71 (setting and transmission of the label information to the initial state). Notification is made (S63), and the recycling process is terminated. That is, when the acquired operator code does not match the operator code input by the user, prohibition of updating to the initial state is set.

  On the other hand, if the operator code acquired in S61 and the operator code input by the user match in the process of S62 (S62: Yes), the initial state of the label information by the authorized user Next, the password 49a7 of the label information determined in the processes of S1 and S2 of the data rewriting process (see FIG. 5) is acquired (S64), and the information of the acquired password 49a7 is the initial state. Is determined (S65).

  If the password 49a7 is in the initial state in the process of S65 (S65: Yes), the password has not been set by the user, so the process proceeds to the process of S69 to rewrite the label information to the initial state, and the password 49a7 Is not in the initial state (S65: No), the password has been set by the user, and the password input screen is displayed on the display 32 (S66). When the password input screen is displayed on the display 32, the user can enter the password using the circle button 38 and the enter button 37 to make a decision.

  In the process of S67, it is determined whether or not the password has been entered by the user (S67). If the password has not been entered by the user (S67: No), the process of S67 is completed until the password is entered. When the password input is completed (S67: Yes), it is determined whether or not the input password matches the password 49a7 acquired in the process of S64 (S68).

  If the password input by the user does not match the password 49a7 acquired in S64 in the process of S68 (S68: No), the label information is returned to the initial state by the user who does not know the password. Since this is an update, an error is notified (S63), and the recycling process is terminated.

  On the other hand, if the password input by the user matches the password 49a7 acquired in S64 (S68: Yes) in the process of S68, the initial state of the label information by the user who knows the password is restored. First, the flag 49a1 is turned on for the first time (S69), and the information 49a3 to 49a32 corresponding to the label name of the storage information memory 49a is rewritten to the initial state (S70). The label information is transmitted (S71), and the recycling process is terminated.

  When the label information is transmitted to the wireless tag device 10 in the process of S71, a rewrite request instruction signal is transmitted, and an operator code and password input by the user are also transmitted.

  The data rewriting process described above is executed on the reader / writer device 30 side, and it is determined whether the flag is on or off for the first time. Therefore, the wireless tag device 10 is based on information sent from the reader / writer device 30. It is only necessary to rewrite the contents of the tag information memory 18a.

  Next, rewriting processing and reading processing executed by the CPU 15 of the wireless tag device 10 will be described with reference to FIG. 9 and FIG. 10 without performing processing related to the flag for the first time on the reader / writer device 30 side. The rewrite process and the read process are executed when a rewrite request and a read request instruction signal from the reader / writer device 30 are received. It should be noted that the read request includes read item information indicating a necessary item among the pieces of information 18a1 to 18a32 stored in the tag hierarchical structure information memory 18a.

  FIG. 9 is a flowchart showing a rewrite process executed by the CPU 15 of the wireless tag device 10. When the rewriting process is executed, the label information, the operator code input by the user, and the password input by the user transmitted from the reader / writer device 30 are stored in the tag RAM 17 (S101). Then, the flag 18a1 is acquired for the first time stored in the tag information memory 18a (S102), and the process proceeds to S103.

  In the process of S103, it is determined whether or not the flag 18a1 acquired in the process of S102 is turned on for the first time (S103). If the flag 18a1 is turned on for the first time (S103: Yes), the RFID tag device 10 is initialized. Since it is in the state, the label information transmitted from the reader / writer device 30 and stored in the tag RAM 17 is analyzed (S104), and it is determined whether or not there are all items to be rewritten among the information 18a3 to 18a32. Is discriminated (S105).

  In the process of S105, if there is a shortage in the item to be rewritten (S105: Yes), an initial value is set in the shortage item (S106), and if there is no shortage item (S105: No), Without executing the process of S106, the label information stored in the tag RAM 17 is stored in the tag information memory 18a (S107), and the rewriting process is terminated.

  On the other hand, if the flag 18a1 acquired in the process of S102 is OFF for the first time in the process of S103 (S103: No), the label information stored in the tag information memory 18a is not in the initial state, so the tag information memory An operator code is acquired from 18a (S108), and it is determined whether or not the acquired operator code matches the operator code input by the user stored in S101 (S109).

  In the process of S109, if the operator code acquired in the process of S108 does not match the operator code input by the user (S109: No), the label information is updated by a user who does not have proper operation authority. In order to prevent the label information from being updated illegally, an error is reported without executing the label information rewriting process performed in S111 to S116 (S110). ), The rewriting process is terminated. That is, when the operator code stored in the tag information memory 18a does not match the operator code input by the user, rewriting of label information is prohibited. The error notification executed in the process of S110 is performed by displaying the error content on the display 12.

  On the other hand, if the operator code acquired in S108 matches the operator code input by the user in S109 (S109: Yes), the label information is updated by the user who knows the operator code. Therefore, the password 18a7 in the tag information memory 18a is acquired (S111), and it is determined whether or not the acquired password 18a7 is in the initial state (S112).

  If the password 18a7 is in the initial state in the process of S112 (S112: Yes), since the password has not been set by the user, the process proceeds to the process of S114 in order to rewrite the label information. On the other hand, if the password 18a7 is not in the initial state in the process of S112 (S112: No), the password is set by the user, so the password 18a7 acquired in the process of S111 and the tag RAM 17 in the process of S101. It is determined whether or not it matches the stored password (password entered by the user) (S113).

  In the process of S113, if the password 18a7 acquired in the process of S111 and the password input by the user match (S113: Yes), the process proceeds to the process of S114 in order to rewrite the label information. If the password 18a7 acquired in the process of S111 and the password input by the user do not match (S113: No), there is a possibility of updating the label information by a user who does not know the password, so an error is notified. (S110), and the rewriting process is terminated.

  In the process of S114, the label information transmitted from the reader / writer device 30 and stored in the RAM 17 is analyzed (S114), and whether or not the item to be updated includes the operation ID 49a3 (corresponding to 18a3). Is discriminated (S115).

  If the operation ID 49a3 is included in the item to be updated in the process of S115 (S115: Yes), the operation ID 49a3 is updated despite the rewriting of the label information, and the operation ID 49a3 is updated. Instead, an error is notified (S110), and the rewriting process is terminated. On the other hand, if the operation ID 49a3 is not included in the item to be updated in the process of S115 (S115: No), the contents of the tag information memory 18a are rewritten with the label information transmitted from the reader / writer device 30 ( S116), the rewriting process is terminated.

  FIG. 10 is a flowchart showing a reading process executed by the CPU 15 of the wireless tag device 10. When the reading process is executed, the label information, the operator code input by the user, the password input by the user, and the reading item included in the reading request transmitted from the reader / writer device 30 are displayed in the tag RAM 17. (S121). Then, the flag 18a1 is acquired for the first time stored in the tag information memory 18a (S122), and the process proceeds to S123.

  In the process of S123, it is determined whether or not the flag 18a1 is turned on for the first time acquired in the process of S122 (S123). If the flag 18a1 is turned on for the first time (S123: Yes), the RFID tag device 10 is initialized. Since this is a state and reading is impossible, an error is notified (S124), and the reading process is terminated. The error notification executed in the process of S124 is performed by displaying the error content on the display 12.

  On the other hand, if the flag 18a1 is OFF for the first time in the process of S123 (S123: No), the label information stored in the tag information memory 18a is not in the initial state, so the operator code is acquired (S125). It is determined whether or not the acquired operator code matches the operator code stored in the tag RAM 17 in step S121 (operator code input by the user) (S126).

  If the operation ID 18a3 acquired in the process of S125 and the operation ID input by the user do not match in the process of S126 (S126: No), the label information can be read out by a user who does not have normal read authority. In order to prevent the label information from being read illegally, an error is reported without executing the label information reading performed in the processing of S127 to S131 (S124), and the rewriting processing is terminated. . That is, when the operation ID 18a3 stored in the tag information memory 18a does not match the operation ID input by the user, reading the label information from the wireless tag device 10 is prohibited.

  On the other hand, if the operator code acquired in S125 matches the operator code input by the user in S126 (S126: Yes), the label information is read by the authorized user. Therefore, the password 18a7 of the tag information memory 18a is acquired (S127), and it is determined whether or not the information of the acquired password 18a7 is in the initial state (S128).

  If the information of the password 18a7 is in the initial state in the process of S128 (S128: Yes), since the password has not been set by the user, the process proceeds to the process of S130 in order to read the label information. On the other hand, if the password 18a7 information is not in the initial state in the process of S128 (S128: No), the password has been set by the user, so the password 18a7 acquired in the process of S127 and the process stored in the process of S121 are stored. It is determined whether or not the password (password entered by the user) matches (S129). If the password matches (S129: Yes), the process proceeds to S130 to read the label information. If the passwords do not match (S129: No), the label information may be read by a user who does not know the password, so an error is notified without reading the label information (S124), The rewriting process is terminated.

  In the process of S130, information corresponding to the read item stored in the process of S121 is read from the tag information memory 18a (S130), and the read information is transmitted to the reader / writer device 30 (S131). The process ends.

  As described above, according to the tag wireless communication system 60, when the flag 18a1 stored in the tag information memory 18 of the wireless tag device 10 is turned on for the first time, the operation ID 18a3 can be updated. On the other hand, when the flag 18a1 is turned off for the first time, the update of the operation ID 18a3 can be prohibited. For the first time, the flag 18a1 is always turned off when the label information is updated and is not in the initial state, and can be set to ON when the operator code input by the user matches the operator code. . The label information stored in the tag information memory 18 of the wireless tag device 10 cannot be updated unless the operator code input by the user matches the operator code. Therefore, by providing the operator code, it is possible to prevent the label information stored in the tag information memory 18 of the wireless tag device 10 from being updated indefinitely. In addition, since the user who knows the operation ID can freely update the label information, the usability of the tag wireless communication system 60 can be improved. Further, since the update of the operation ID 18a3 is prohibited when the flag 18a1 is turned off for the first time, the operation ID 18a3 is prevented from being inadvertently updated. Can be prevented from being updated.

Further, when the operation ID is stored in a database provided in an external device (for example, a server) and the operation ID is commonly used in the external device, the operation ID 18a3 of the wireless tag device 10 is easily updated. Then, the operation ID on the database side and the operation ID 49a3 on the wireless tag device 10 side cannot be matched. However, according to the tag wireless communication system 60, when the flag 18a1 is turned off for the first time, the update of the operation ID 18a3 thereafter can be prohibited, so that the consistency of the operation ID 18a3 can be prevented from being lost.

  As described above, two examples have been described in which the rewriting process is performed only by the reader / writer device 30 and the wireless tag device 10 only. That is, the label information can be rewritten or changed by either the reader / writer device 30 or the wireless tag device 10. However, this does not mean that the reader / writer device 30 and the wireless tag device 10 are simultaneously executed.

  In the present embodiment, the label information includes information 49a26 to 49a32 as hierarchical position information. For this reason, if the label information is illegally updated and the hierarchical position information is updated, the hierarchical position information is complicated, so that the recovery operation becomes difficult. However, by providing the operator code, the user who can update the hierarchy position information is restricted, and further, the update of the operation IDs 49a3 and 18a3 is also restricted, so that the hierarchy position information is prevented from being updated without restriction. Can do.

  As described above, the present invention has been described based on each embodiment, but the present invention is not limited to the above-described embodiment, and various modifications can be easily made without departing from the gist of the present invention. Can be inferred.

  For example, in the above embodiment, the reader / writer device 30 is realized by using a dedicated device, but the reader / writer device 30 may be realized by using a personal computer connected to communication means. The label information is stored in the tag flash memory 18 of the wireless tag device 10 and the flash memory 49 of the reader / writer device 30, but is stored in a storage device that can communicate with the reader / writer device 30 and a personal computer. It is good as a thing. Note that the communicable storage device is, for example, a storage device on a network to which a personal computer is connected.

  Further, in the above embodiment, the display 12 of the RFID tag device 10 employs an electric peristaltic type. However, the display 12 is a display medium that does not incorporate a battery, and can be rewritten any number of times by erasing display contents. Furthermore, it may be a non-volatile display device such as electronic paper that can maintain the displayed content for a long time.

  In the above embodiment, the reader / writer device 30 determines whether or not the flags 49a1 and 18a1 are turned on for the first time and whether or not the operation IDs 49a3 and 18a3 match the operation ID input by the user. However, it may be performed by both of them. Also in the reader / writer device 30 and the wireless tag device 10, it is determined whether or not the flag 18a1 is turned on for the first time, and whether or not the operator code input by the user matches the stored operator code. Therefore, both the reader / writer device 30 and the wireless tag device 10 can monitor whether the label information is updated illegally, thereby improving security.

  In the above embodiment, the RFID tag device 10 is configured so that the recycle process cannot be executed by a user who knows the operator code stored in the operator code 49a8 (has the operating authority). Separately, an operator code dedicated to recycling processing is stored, and even a user who does not know the operator code can be configured to execute the recycling processing if he knows the operator code dedicated to recycling. good.

  Here, in the present embodiment, the specific information update unit according to claim 1 or 9 corresponds to the processing of S22 of FIG. 6, and the first determination unit according to claim 1 or 9 corresponds to FIG. The process of S21 and the process of S41 of FIG. 7 correspond, and as the first setting means according to claim 1 or 9, S21 of FIG. 6 is determined as Yes, and the process proceeds to the process of S22 and S21 is determined as No. The process to shift to the process of S31 corresponds, the process of S24 of FIG. 6 corresponds to the first initial information update unit according to claim 1 or 9, and the selection unit according to any one of claims 3 to 5 This corresponds to the case where the operator code input is determined in the processing of S3 and S4 in FIG. 5, and the second determination means according to any one of claims 3 to 5 includes the processing in S45 of FIG. The process of S62 of the above corresponds, and The notification means corresponds to the process of S46 of FIG. 7 and the process of S63 of FIG. 8, and the other information update means of claim 3 or 4 includes the process of S47 of FIG. 7 and the process of S70 of FIG. The second setting means described in claim 4 corresponds to the process in which S45 in FIG. 7 is determined as Yes and the process proceeds to S47, and the process in S45 is determined as No and the process in S46 is performed. 8 corresponds to the second initial information updating means described in item 5, and as the third setting means described in claim 5, S62 in FIG. 8 is determined as Yes, and the process proceeds to S64. The acquisition process according to claim 8 corresponds to the process in which the process of S63 is determined as No, and the process of S63 shifts. The specific information update unit according to claim 8 or 10 corresponds to the processing of S107 and S116 of FIG. 9, and the third determination unit of claim 8 or 10 corresponds to S103 of FIG. The fourth setting means according to claim 8 or 10 includes a process in which S103 in FIG. 9 is determined as Yes and the process proceeds to S104, and S103 is determined as No and the process proceeds to S108. Applicable.

It is the schematic which showed the structure of the tag radio | wireless communications system of this invention. FIG. 2 is a block diagram illustrating an electrical configuration of the wireless tag device and the reader / writer device, where (a) is a block diagram of the wireless tag device and (b) is a block diagram of the reader / writer device. It is the figure which showed the label information memorize | stored in the hierarchical structure information memory for tags of a radio | wireless tag apparatus. It is the schematic diagram which showed the hierarchical structure of the several target object. It is the flowchart which showed the data rewriting process performed by CPU of a reader / writer apparatus. It is the flowchart which showed the new creation process performed by CPU of a reader / writer apparatus. It is the flowchart which showed the update process performed by CPU of a reader / writer apparatus. It is the flowchart which showed the recycling process performed by CPU of a reader / writer apparatus. It is the flowchart which showed the rewriting process performed by CPU of a wireless tag apparatus. It is the flowchart which showed the read-out process performed by CPU of a wireless tag apparatus.

Explanation of symbols

2 Binder (object)
10 Wireless tag device (tag device)
18a1 First flag (initial information)
18a3 Operation ID (specific information)
18a4-18a32 Each information of label information (other information)
30 Reader / writer device (communication device)
33 Keyboard (input means)
46 CPU (update means)
49a1 First flag (initial information)
49a3 Operation ID (specific information)
49a4 to 49a32 Label information (other information)
60 tag wireless communication system (information communication system)

Claims (10)

In a communication device configured to be able to communicate with a tag device attached to each of a plurality of objects,
Storage means for storing specific information for identifying an object on which the tag device is mounted, and initial information indicating whether the tag device is in an initial state;
Specific information updating means for updating the specific information;
First determination means for determining whether or not the initial information stored in the storage means indicates an initial state;
When it is determined by the first determination means that the initial information indicates an initial state, permission to update the specific information by the specific information update means is set, and the initial determination by the first determination means First setting means for setting prohibition of updating of the specific information by the specific information updating means when it is determined that the information does not indicate an initial state;
And a first initial information updating unit that updates the initial information to information that does not indicate the initial state when permission to update the specific information is set by the first setting unit. Communication device.   The specific information update means includes input means for inputting new specific information, and update means for updating the specific information stored in the storage means to the new specific information input by the input means. The communication apparatus according to claim 1. The storage means stores other information different from the specific information together with the specific information,
Other information updating means for updating the other information;
Selecting means for selecting predetermined specific information;
Second determination means for determining whether or not the specific information selected by the selection means and the specific information stored in the storage means correspond to each other;
3. A first informing means for informing that before the updating by the other information updating means when the second discriminating means discriminates that the information is not the corresponding information. 3. The communication device described. The storage means stores other information different from the specific information together with the specific information,
Other information updating means for updating the other information;
Selecting means for selecting predetermined specific information;
Second determination means for determining whether or not the specific information selected by the selection means and the specific information stored in the storage means correspond to each other;
When it is determined that the second determination means is the corresponding information, the permission of updating the other information by the other information update means is set, and the second determination means is determined not to be the corresponding information The communication apparatus according to claim 1, further comprising: a second setting unit that sets prohibition of updating of the other information by the other information updating unit. Selecting means for selecting predetermined specific information;
Second determination means for determining whether or not the specific information selected by the selection means and the specific information stored in the storage means correspond to each other;
Second initial information update means for updating the initial information stored in the storage means to information indicating an initial state;
The initial information is updated to information that does not indicate the initial state by the first initial information update unit, and the specific information selected by the selection unit by the second determination unit and the specific information stored in the storage unit And third setting means for setting permission for updating the information indicating the initial state of the initial information by the second initial information updating means. The communication apparatus according to claim 1, wherein the communication apparatus is characterized. The initial information indicates an initial state when it is an initial value,
The first initial value updating means updates the initial information to a value different from the initial value when permission to update the specific information is set by the first setting means. The communication device according to any one of claims 1 to 5.   The other information has hierarchical information indicating a higher layer, a lower layer, or an isotopic layer of another object excluding the reference object, with one object as a reference. The communication apparatus according to claim 1. In a tag device attached to each of a plurality of objects,
Obtaining means for obtaining identification information for identifying the object and initial information indicating whether or not a tag device attached to the object is in an initial state;
Specific information updating means for updating the specific information;
Third determining means for determining whether or not the initial information acquired by the acquiring means indicates an initial state;
In the case where the initial information indicates the initial state by the third determining means, permission to update the specific information by the specific information updating means is set, and the initial information is set by the third determining means to the initial information. A tag device comprising: fourth setting means for setting prohibition of updating of the specific information by the specific information update means when it is determined that the state does not indicate a state. In an information communication system comprising a tag device mounted on each of a plurality of objects, and a communication device configured to be able to communicate with the tag device,
The communication device
Storage means for storing specific information for identifying an object on which the tag device is mounted, and initial information indicating whether the tag device is in an initial state;
Specific information updating means for updating the specific information;
First determination means for determining whether or not the initial information stored in the storage means indicates an initial state;
When it is determined by the first determination means that the initial information indicates an initial state, permission to update the specific information by the specific information update means is set, and the initial determination by the first determination means An information communication system comprising: first setting means for setting prohibition of updating of the specific information by the specific information updating means when it is determined that the information does not indicate an initial state. In an information communication system comprising a tag device mounted on each of a plurality of objects, and a communication device configured to be able to communicate with the tag device,
The tag device is
Obtaining means for obtaining identification information for identifying the object and initial information indicating whether or not a tag device attached to the object is in an initial state;
Specific information updating means for updating the specific information;
Third determining means for determining whether or not the initial information acquired by the acquiring means indicates an initial state;
In the case where the initial information indicates the initial state by the third determining means, permission to update the specific information by the specific information updating means is set, and the initial information is set by the third determining means to the initial information. An information communication system comprising: fourth setting means for setting prohibition of updating of the specific information by the specific information update means when it is determined that the information does not indicate a state.

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