JP2006293669A - Radio tag circuit element, radio tag label, interrogator and radio tag label preparing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To quickly and efficiently read mass information from among a limited storage capacity. <P>SOLUTION: In this radio tag circuit element To having an IC circuit 150 for storing information and an antenna 151 connected to the IC circuit part 150, the IC circuit part 150 is configured to set whether or not a reply signal should be outputted in response to the reception of an unspecific retrieval signal or retrieval signal from a reader 200, and when a signal is received from a reader 300, whether or not the signal is an unspecific retrieval signal or retrieval signal is decided, and whether to output a reply signal to the reader 200 side is switched according to the decision result. Also, access pointer information to another radio tag circuit element To is stored and held. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a RFID circuit element capable of wireless communication of information with the outside, a wireless tag label having the wireless tag circuit element, an interrogator for transmitting / receiving signals to / from the wireless tag circuit element, and a wireless tag label producing apparatus for producing a wireless tag label. .

  An RFID (Radio Frequency Identification) system that reads / writes information in a non-contact manner between a small wireless tag and a reader (reading device) / writer (writing device) is known. The RFID circuit element provided in the RFID tag label includes an IC circuit unit that stores predetermined RFID tag information and an antenna that is connected to the IC circuit unit and transmits / receives information, and the RFID tag label is dirty. Even if it is placed in an invisible position, it is possible to access (read / write information) the RFID tag information of the IC circuit section from the reader / writer side, product management, inspection process, etc. Practical use is expected in various fields.

  Although the wireless tag is being used in various fields as described above, since the storage capacity of the IC circuit unit of the wireless tag circuit element is limited, when a large amount of information is to be stored in the wireless tag. The information needs to be divided and stored in a plurality of RFID circuit elements. As a prior art regarding a communication method between such a plurality of RFID circuit elements, for example, there is one described in Patent Document 1.

  In general, it is possible to communicate with a plurality of RFID circuit elements as long as they are within a range where radio waves can reach from the antenna on the device side. If a radio wave for communication is transmitted from the device side without specifying the communication target by the tag ID), all RFID tag circuit elements existing within the range in which the radio wave can reach respond, and thus interference occurs. In the above prior art, in consideration of such points, congestion control for identifying the plurality of RFID tag circuit elements is performed, thereby preventing the above-described interference caused by the plurality of RFID tag circuit elements, and smooth communication. I can do it.

JP 2004-78840 A (paragraph numbers 0019 to 0027, FIGS. 5 to 7)

  In the above-described conventional technology, in the congestion control performed to prevent interference by a plurality of RFID circuit elements, the interrogator side responds to the interrogator bit by bit from each of the plurality of RFID circuit elements. A predetermined selection is performed from the response signal, and this is sequentially repeated to finally complete identification of all RFID circuit elements. For this reason, when a large amount of information is divided and stored in a plurality of RFID circuit elements as described above, the communication procedure becomes complicated when information is read from the plurality of RFID circuit elements, and communication is required. Time has increased and it has been difficult to read information efficiently and quickly.

  An object of the present invention is to provide a RFID circuit element capable of quickly and efficiently reading a large amount of information within a limited storage capacity, a wireless tag label provided with the RFID circuit element, and a signal transmission / reception with the RFID circuit element. It is an object to provide an interrogator to be performed and an RFID label producing apparatus for producing an RFID tag label.

In order to achieve the above object, the first invention of the present application includes an IC circuit unit for storing information,
A tag circuit element having a tag-side antenna connected to the IC circuit unit, wherein the IC circuit unit stores and holds access pointer information for accessing other RFID tag circuit elements. To do.

  In the first invention of the present application, when a large amount of information is to be stored in the RFID circuit element, a plurality of RFID circuit elements are prepared, and the information to be stored is divided and stored in each RFID circuit element. At the time of reading, a predetermined one of the plurality of RFID tag circuit elements is accessed. Thus, for example, when the predetermined one RFID tag circuit element does not store the divided information but stores the divided information separately in the other RFID tag circuit elements, the predetermined wireless tag circuit element Corresponding information can be easily obtained by accessing the IC circuit portion of another RFID tag circuit element related to the division information to be acquired based on the pointer information of the tag circuit element. Alternatively, when the divided information is also stored in the predetermined RFID circuit element, the divided information corresponding to the amount stored in the IC circuit unit of the RFID circuit element is obtained and the pointer information is stored in the pointer information. Based on this, it is possible to obtain the divided information corresponding to the amount stored in the IC circuit portion of another RFID circuit element.

  In this way, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, one RFID circuit element is associated with pointer information to another RFID circuit element. The above-described large-capacity information can be read quickly and efficiently.

  According to a second aspect of the present invention, in the first aspect of the invention, the IC circuit unit is configured to be able to set whether or not to output a response signal to the signal when an unspecified search signal or a search signal is received from the interrogator. It is characterized by that.

  In the second invention of this application, when a large amount of information is to be stored in the RFID circuit element, a plurality of RFID circuit elements are prepared, and the information to be stored is divided and stored in each RFID circuit element. At this time, these RFID circuit elements have characteristics that respond to unspecified search signals or search signals, or characteristics that respond only to specific search signals without responding to unspecified search signals or search signals. For example, only one predetermined RFID tag circuit element among the plurality of RFID tag circuit elements, that is, 1 that stores information to be read first among the divided information is stored. Only one RFID circuit element can be a characteristic that responds to an unspecified search signal or search signal, and the remaining can be a characteristic that does not respond to an unspecified search signal or search signal.

  At the time of reading, an unspecified search signal or a search signal is transmitted to access the predetermined one RFID tag circuit element. Thus, for example, when the predetermined one RFID tag circuit element does not store the divided information but stores the divided information separately in the other RFID tag circuit elements, the predetermined wireless tag circuit element Corresponding information can be easily obtained by accessing the IC circuit portion of another RFID tag circuit element related to the division information to be acquired based on the pointer information of the tag circuit element. Alternatively, when the divided information is also stored in the predetermined RFID circuit element, the divided information corresponding to the amount stored in the IC circuit unit of the RFID circuit element is obtained and the pointer information is stored in the pointer information. Based on this, it is possible to obtain the divided information corresponding to the amount stored in the IC circuit portion of another RFID circuit element.

  In this way, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, one RFID circuit element is associated with pointer information to another RFID circuit element. The above-described large-capacity information can be read quickly and efficiently.

  According to a third aspect of the present invention, in the second aspect of the invention, when receiving a signal from the interrogator, a tag side determination unit that determines whether the signal is an unspecified search signal or a search signal, and a determination by the tag side determination unit And a switching means for switching whether or not to output a response signal to the interrogator according to the result.

  Whether the received signal is an unspecified search signal or a search signal is determined by the tag side determination means, and if it is determined by the switching means, for example, as an unspecified search signal or a search signal, according to the determination result, an IC is determined. A response signal including pointer information of other RFID tag circuit elements stored in the circuit unit is output, and if it is not determined to be an unspecified search signal or a search signal, a response signal may not be output. It becomes possible.

  According to a fourth invention, in the first invention, the IC circuit section stores and holds an identifier of the other RFID tag circuit element or a part thereof as the access pointer information.

  As a result, first, one RFID circuit element is accessed to obtain an identifier of another RFID circuit element from the IC circuit unit, and then the other RFID circuit element is accessed and read using the obtained identifier. By doing so, a large amount of information can be read quickly and efficiently.

  According to a fifth invention, in the first invention, the IC circuit unit stores and holds information for acquiring an identifier of the other RFID circuit element as the access pointer information.

  Thereby, first, one RFID circuit element is accessed and information for acquiring the identifier of the other RFID tag circuit element is obtained from the IC circuit unit, and thereafter, the information of the other RFID tag circuit element is used using the information. By acquiring the identifier and accessing and reading another RFID circuit element using the acquired identifier, it is possible to quickly and efficiently read a large amount of information.

  According to a sixth invention, in any one of the first to fifth inventions, the IC circuit unit stores and holds the access pointer information related to a plurality of the other RFID tag circuit elements.

  By reading from one RFID circuit element to a plurality of other RFID circuit elements in association with pointer information, it is possible to read the large amount of information quickly and efficiently.

  According to a seventh invention, in any one of the first to sixth inventions, the IC circuit unit stores and holds related information related to the stored contents of the other RFID circuit elements in addition to the access pointer information. Features.

  This makes it possible to display the stored contents of other RFID tag circuit elements.

  In order to achieve the above object, the eighth invention of the present application is a RFID label having a plurality of RFID circuit elements each including an IC circuit section for storing information and a tag side antenna connected to the IC circuit section, The IC circuit section of one RFID tag circuit element among the plurality of RFID tag circuit elements stores and holds access pointer information for accessing another RFID circuit element.

  In the eighth invention of the present application, when a large amount of information is to be stored in the RFID circuit element, the information to be stored in a plurality of RFID circuit elements provided in one RFID tag label is divided into each RFID circuit It memorize | stores in an element. At the time of reading, a predetermined one of the plurality of RFID tag circuit elements is accessed. Thus, for example, when the predetermined one RFID tag circuit element does not store the divided information but stores the divided information separately in the other RFID tag circuit elements, the predetermined wireless tag circuit element Corresponding information can be easily obtained by accessing the IC circuit portion of another RFID tag circuit element related to the division information to be acquired based on the pointer information of the tag circuit element. Alternatively, when the divided information is also stored in the predetermined RFID circuit element, the divided information corresponding to the amount stored in the IC circuit unit of the RFID circuit element is obtained and the pointer information is stored in the pointer information. Based on this, it is possible to obtain the divided information corresponding to the amount stored in the IC circuit portion of another RFID circuit element.

  In this way, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, one RFID circuit element is associated with pointer information to another RFID circuit element. The above-described large-capacity information can be read quickly and efficiently.

  According to a ninth invention, in the eighth invention, the IC circuit unit of at least one RFID tag circuit element among the plurality of RFID tag circuit elements receives the unspecified search signal or the search signal from the interrogator. It is possible to set whether or not to output a response signal.

  In the ninth invention of this application, when a large amount of information is to be stored in the RFID circuit element, a plurality of RFID circuit elements are prepared, and the information to be stored is divided and stored in each RFID circuit element. At this time, these RFID circuit elements have characteristics that respond to unspecified search signals or search signals, or characteristics that respond only to specific search signals without responding to unspecified search signals or search signals. For example, only one predetermined RFID tag circuit element among the plurality of RFID tag circuit elements, that is, 1 that stores information to be read first among the divided information is stored. Only one RFID circuit element can be a characteristic that responds to an unspecified search signal or search signal, and the remaining can be a characteristic that does not respond to an unspecified search signal or search signal.

  At the time of reading, an unspecified search signal or a search signal is transmitted to access the predetermined one RFID tag circuit element. Thus, for example, when the predetermined one RFID tag circuit element does not store the divided information but stores the divided information separately in the other RFID tag circuit elements, the predetermined wireless tag circuit element Corresponding information can be easily obtained by accessing the IC circuit portion of another RFID tag circuit element related to the division information to be acquired based on the pointer information of the tag circuit element. Alternatively, when the divided information is also stored in the predetermined RFID circuit element, the divided information corresponding to the amount stored in the IC circuit unit of the RFID circuit element is obtained and the pointer information is stored in the pointer information. Based on this, it is possible to obtain the divided information corresponding to the amount stored in the IC circuit portion of another RFID circuit element.

  In this way, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, one RFID circuit element is associated with pointer information to another RFID circuit element. The above-described large-capacity information can be read quickly and efficiently.

  A tenth aspect of the invention is characterized in that, in the eighth or ninth aspect of the invention, a predetermined print area corresponding to information stored in the IC circuit portion of the plurality of RFID tag circuit elements is provided.

  Thus, for example, by printing the contents of a large amount of information divided and stored in a plurality of RFID circuit elements, the contents can be clearly shown to the operator at a glance.

  In order to achieve the above object, the eleventh invention of the present application transmits and receives information by wireless communication between an RFID circuit element having an IC circuit section for storing information and a tag side antenna connected to the IC circuit section. And the first access information including the identifier of the one RFID tag circuit element is generated and transmitted to the one RFID circuit element via the device antenna, and the one RFID circuit First information access means for reading information including access pointer information for accessing another RFID circuit element stored in the IC circuit section of the element, and the access acquired by the first information access means Second access information based on the pointer information is generated and transmitted to the other RFID circuit element via the device-side antenna, and the I of the other RFID circuit element is transmitted. And having a second information access means for reading information stored in the circuit portion.

  In the eleventh invention of this application, when a large amount of information is to be stored in the RFID circuit element, a plurality of RFID circuit elements are prepared, and the information to be stored is divided and stored in each RFID circuit element. At the time of reading, the first information access means accesses one RFID circuit element of the plurality of RFID circuit elements, and acquires pointer information of other RFID circuit elements from the IC circuit section. Thereafter, another RFID circuit element is accessed based on the acquired pointer information by the second information access means.

  Thus, for example, when the divided information is not stored in one RFID circuit element but is divided and stored in a plurality of other RFID circuit elements, By accessing the IC circuit portion of the other RFID tag circuit element related to the division information to be acquired based on the pointer information, the corresponding information can be easily obtained. Alternatively, when the divided information is also stored in one RFID circuit element, the divided information corresponding to the amount stored in the IC circuit portion of the RFID circuit element is obtained and based on the pointer information. The divided information corresponding to the amount stored in the IC circuit portion of another RFID circuit element can be obtained.

  In this way, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, one RFID circuit element is associated with pointer information to another RFID circuit element. The above-described large-capacity information can be read quickly and efficiently.

  A twelfth invention according to the eleventh invention, further comprising identifier generating means for generating an identifier of the other RFID circuit element based on the access pointer information acquired by the first information access means, wherein the second information The access means generates the second access information including the identifier generated by the identifier generation means.

  As a result, first, the first information access means accesses one RFID circuit element, acquires pointer information of another RFID circuit element from the IC circuit unit, and then generates another information generated by the identifier generation means from the pointer information. By acquiring the identifier of the RFID circuit element and then using the acquired identifier to access and read another RFID circuit element by the second information access means, it is possible to quickly and efficiently read a large amount of information. It can be carried out.

  In a thirteenth aspect based on the eleventh or twelfth aspect, at least a part of the related information relating to the stored contents of the other RFID tag circuit element obtained together with the access pointer information by the first information access means is displayed. It has the display means to do.

  As a result, the contents stored in other RFID circuit elements can be displayed and made visible to the operator.

  In a fourteenth aspect based on the thirteenth aspect, the first information access means reads a plurality of the access pointer information for accessing a plurality of other RFID circuit elements from the IC circuit section, and the display means Is configured to display at least a part of a plurality of related information obtained by the first information access unit together with the plurality of access pointer information and related to storage contents of each of the plurality of other RFID tag circuit elements. To do.

  As a result, it is possible to display the storage contents and the like of a plurality of other RFID tag circuit elements and make them visible to the operator.

  According to a fifteenth aspect, in the fourteenth aspect, the display means displays a list of all the related information related to the stored contents of the plurality of other RFID tag circuit elements.

  Thereby, it is possible to display a list of all the stored contents of a plurality of other RFID tag circuit elements so that the operator can surely see them.

  In a sixteenth aspect based on the fourteenth aspect, the display means displays all the related information relating to the stored contents of the plurality of other RFID tag circuit elements in a scrollable manner.

  As a result, all the stored contents of the other RFID circuit elements can be displayed in a scrollable manner so that the operator can surely see them.

  In a seventeenth aspect based on the sixteenth aspect, the second aspect is based on the display of at least a part of a plurality of related information displayed on the display means and related to the storage contents of the plurality of other RFID tag circuit elements. There is provided an operation means that allows an operator to select and operate the other RFID tag circuit element as a reading target of the information access means.

  Thus, the operator can select which of the information reading is to be performed after viewing the display of the storage contents of the plurality of other RFID tag circuit elements on the display means.

  In an eighteenth aspect based on any one of the eleventh to seventeenth aspects, the first information access means determines whether or not the access pointer information is included in the information read from the IC circuit unit. And the second information access unit generates the second access information based on the access pointer information when the determination by the interrogator-side determination unit is satisfied, and The information stored in the IC circuit unit is read.

  Thereby, information can be read from the interrogator side for both the RFID circuit element including the access pointer information and the normal RFID circuit element not including the access pointer information. As a result, the last part of the divided large-capacity information is stored in the RFID circuit element in a normal manner that does not include access pointer information and does not need to be associated with any other RFID circuit element. By doing so, it is possible to smoothly read information from each RFID circuit element in order, and to reliably acquire the large-capacity information.

  To achieve the above object, the nineteenth invention of the present application includes a tag tape roll holder section that is detachable from a tag tape roll around which a tag tape having a wireless tag circuit element having an IC circuit section for storing information is wound. A device-side antenna for transmitting and receiving information by wireless communication with a plurality of the RFID tag circuit elements continuously arranged in the longitudinal direction of the tag tape fed out from the tag tape roll; and the IC circuit unit Access information generating means for generating access information to access, access pointer information generating means for generating access pointer information for accessing one RFID tag circuit element from another RFID tag circuit element, and at least the access pointer information Including the access information including the device side antenna to the RFID circuit element and transmitting information to the IC circuit unit. Characterized in that it has a device-side information access means for writing.

  In the nineteenth invention of the present application, the access information generated by the access information generating means is transmitted to the IC circuit portion of the RFID tag circuit element arranged on the tag tape by the apparatus side information access means, and information is written. At this time, the access information includes the access pointer information generated by the access pointer information generating means. In this case, when a large amount of information is to be stored in the RFID circuit element, a plurality of RFID circuit elements are prepared and the information to be stored is divided and stored in each RFID circuit element. Then, a predetermined one of the plurality of RFID tag circuit elements is accessed. Thus, for example, when the predetermined one RFID tag circuit element does not store the divided information but stores the divided information separately in the other RFID tag circuit elements, the predetermined wireless tag circuit element Corresponding information can be easily obtained by accessing the IC circuit portion of another RFID tag circuit element related to the division information to be acquired based on the pointer information of the tag circuit element. Alternatively, when the divided information is also stored in the predetermined RFID circuit element, the divided information corresponding to the amount stored in the IC circuit unit of the RFID circuit element is obtained and the pointer information is stored in the pointer information. Based on this, it is possible to obtain the divided information corresponding to the amount stored in the IC circuit portion of another RFID circuit element.

  In this way, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, one RFID circuit element is associated with pointer information to another RFID circuit element. The above-described large-capacity information can be read quickly and efficiently.

  In a twentieth aspect based on the nineteenth aspect, the device-side information access means determines whether the IC circuit unit outputs a response signal to the signal when an unspecified search signal or search signal is received from the interrogator. It is characterized in that it can be set.

  In the twentieth aspect of the present invention, when it is desired to store a large amount of information in the RFID circuit element, a plurality of RFID tag circuit elements are prepared, and the information to be stored is divided and passed through the device-side information access means. It memorize | stores in a radio | wireless tag circuit element. At this time, the device-side information access means has a characteristic that the IC circuit unit responds to the unspecified search signal or the search signal, or does not respond to the unspecified search signal or the search signal, for example, the specified search. Since it is possible to freely switch whether the characteristic responds only to a signal, for example, only one predetermined RFID tag circuit element among the plurality of RFID tag circuit elements, that is, first read out of divided information. Only one RFID circuit element that stores power information can have a characteristic that responds to an unspecified search signal or search signal, and the rest can have a characteristic that does not respond to an unspecified search signal or search signal.

  At the time of reading, an unspecified search signal or a search signal is transmitted to access the predetermined one RFID tag circuit element. Thus, for example, when the predetermined one RFID tag circuit element does not store the divided information but stores the divided information separately in the other RFID tag circuit elements, the predetermined wireless tag circuit element Corresponding information can be easily obtained by accessing the IC circuit portion of another RFID tag circuit element related to the division information to be acquired based on the pointer information of the tag circuit element. Alternatively, when the divided information is also stored in the predetermined RFID circuit element, the divided information corresponding to the amount stored in the IC circuit unit of the RFID circuit element is obtained and the pointer information is stored in the pointer information. Based on this, it is possible to obtain the divided information corresponding to the amount stored in the IC circuit portion of another RFID circuit element.

  In this way, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, one RFID circuit element is associated with pointer information to another RFID circuit element. The above-described large-capacity information can be read quickly and efficiently.

  In a twenty-first aspect, in the nineteenth or twentieth aspect, there is provided apparatus-side determination means for determining whether the amount of information written to the RFID circuit element is larger than the storage capacity of one RFID circuit element. The device-side information access means divides and writes the access information into the plurality of RFID tag circuit elements according to the determination result by the device-side determination means.

  As a result, when the amount of information is large, information is divided and written to each RFID circuit element, while when the amount of information is small, information is not divided and all data is written to one RFID circuit element as usual. Can be.

  According to the present invention, it is possible to quickly and efficiently read a large amount of information within a limited storage capacity.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a conceptual system configuration diagram showing the entire RFID tag information reading system to which the RFID tag circuit element of this embodiment is applied.

  In this example, the RFID tag information reading system shown in FIG. 1 includes RFID tags T1, T2, and T3 provided with the RFID circuit elements (details will be described later) according to the present embodiment on the projector 101, the notebook computer 102, and the notebook computer 103. Each is affixed. Then, the reader (interrogator, RFID tag information reading device) 200 accesses the RFID circuit elements provided in the RFID labels T1, T2, T3, respectively (in this example, the stored predetermined information is read).

  2A and 2B are diagrams illustrating an example of the overall schematic structure of the RFID label T1. FIG. 2A is a top view of the RFID label T1 and FIG. 2B is a bottom view. 2 (a) and 2 (b), the RFID label T1 includes, for example, a substantially sheet-shaped base 2 (label base) and an IC circuit unit that is arranged on the base 2 and stores information. 150 and a plurality of (six in this example) RFID tag circuit elements To0 (all of which are also shown in the drawings), To1, To2, To3, To4 each having an antenna 151 connected to the IC circuit unit 150. , To5.

  As shown in FIG. 2A, the front side (upper surface) of the base material 2 of the RFID label T1 includes a region S in which corresponding print information (“projector” in this example) is written. Note that these regions S may not be characters but may be graphics or symbols, or simple color painting or patterns.

  FIG. 3 is a block diagram showing an example of a functional configuration of the RFID circuit elements To0, To1, To2, To3, To4, and To5 provided in the RFID label T1.

  In FIG. 3, the RFID circuit elements To0 to To5 are used for contactless signal transmission using the antenna 210 (device-side antenna) of the reader 200 and high-frequency waves such as a short wave band (eg, 13.56 MHz), UHF band, and microwave band. The antenna 151 (tag side antenna) that performs transmission and reception and the IC circuit unit 150 connected to the antenna 151 are included.

  The IC circuit unit 150 includes a rectification unit 152 that rectifies the carrier wave received by the antenna 151, and a power source unit 153 that accumulates energy of the carrier wave rectified by the rectification unit 152 and serves as a driving power source for the IC circuit unit 150. A clock extraction unit 154 that extracts a clock signal from the carrier wave received by the antenna 151 and supplies the clock signal to a control unit (described later) 157; a memory unit 155 that functions as an information storage unit that can store a predetermined information signal; A modulation / demodulation unit 156 connected to the antenna 151, and a control unit 157 for controlling the operation of the RFID circuit element To through the rectification unit 152, the clock extraction unit 154, the modulation / demodulation unit 156, and the like. Yes.

  The modulation / demodulation unit 156 demodulates the communication signal received from the antenna 210 of the reader 200 (interrogator) received by the antenna 151, and receives the carrier wave received from the antenna 210 based on the return signal from the control unit 157. Modulate and reflect.

  The control unit 157 interprets the received signal demodulated by the modulation / demodulation unit 156, generates a return signal based on the information signal stored in the memory unit 155, and performs basic control such as returning by the modulation / demodulation unit 156. Execute proper control.

  4 (a) to 4 (f) conceptually show data contents stored in the memory unit 155 of the RFID circuit elements To1, To2, To3, To4, To5 provided in the RFID label T1. FIG.

  4A shows the data content of the RFID tag circuit element To0 (main tag) of the RFID label T1, and the tag ID (“ID0” in this example) as an identifier of the RFID circuit element and the stored contents are shown in FIG. Related information (in this example, information indicating that the target device is the projector 101) and the access pointer information (in this example) of the remaining five RFID circuit elements (subtags) To1, To2, To3, To4, To5 Each RFID circuit element tag ID) and information (in this example, “management”, “maintenance”, “function”, “situation”, “instruction manual”) related to the stored contents are stored in the memory unit 155. Keeps memorized.

  FIG. 4B shows the data contents of the RFID circuit element To1 (first sub tag) of the RFID label T1, and the tag ID (“ID1” in this example) as tag identification information is shared by this tag. Article information stored in memory, that is, in this example, management information of the projector 101 as a target device (fixed asset number “12345”, administrator name “***”, installation location “third conference room”, etc.) And stored in the memory unit 155.

  FIG. 4C shows the data content of the RFID circuit element To2 (second sub tag) of the RFID label T1, and the tag ID ("ID2" in this example) as tag identification information is shared by this tag. Product information stored, that is, maintenance information of the projector 101 which is the target device in this example (replacement lamp model “DEF-123”, the order name “GHIJ Shokai”, the order number “456-7890” And the like are stored in the memory unit 155.

  FIG. 4D shows the data contents of the RFID circuit element To3 (third sub tag) of the RFID label T1, and the tag ID (“ID3” in this example) as tag identification information is shared by this tag. Article information stored in memory, that is, in this example, the function information of the projector 101 that is the target device (resolution “XGA”, brightness “5000 lm”, method “DLP”, connection terminal name “****”, etc. ) Is stored and held in the memory unit 155.

  FIG. 4 (e) shows the data content of the RFID circuit element To4 (fourth sub tag) of the RFID label T1, and the tag ID (“ID4” in this example) as tag identification information is shared by this tag. Information stored in memory, that is, in this example, current status information of the projector 101 that is the target device (last lamp replacement date “2004/11/10”, lamp storage location “***”, etc.) is stored in the memory unit 155. Keeps memorized.

  FIG. 4F shows the data content of the RFID circuit element To5 (fifth sub tag) of the RFID label T1, and the tag ID (“ID5” in this example) as tag identification information is shared by this tag. Article information stored in memory, that is, in this example, instruction manual information of the projector 101 that is the target device (lamp replacement method “***”, adjustment method “***”, OFF “***”, etc.) Is stored in the memory unit 155.

  In the above description, the RFID circuit elements To0 to To5 of the RFID label T1 whose target device is the projector 101 have been described as an example. However, the RFID tag T2 (“PC1”) attached to another target device, for example, the personal computer 102, has been described. ) And the RFID label T3 attached to the personal computer 103 ("PC2" is printed) are provided with a plurality of similar RFID circuit elements. One of the RFID circuit elements includes a tag ID as tag identification information, information related to the stored contents (information indicating that the target device is the personal computer 102 or the personal computer 103), and the remaining wireless tags. The memory section 155 stores and holds the access pointer information of the circuit element (sub tag) and information related to each stored content.

  FIG. 5 is a functional block diagram showing detailed functions of the reader 200. In FIG. 5, a reader (in this example, a portable type) 200 includes an antenna 210 that transmits and receives signals to and from the antenna 151 of the RFID circuit elements To0 to To5, and the wireless communication via the antenna 210. The IC circuit unit 150 of the tag circuit elements To0 to To5 is accessed (in this example, reading is performed), and the high frequency circuit 201 that processes signals read from the RFID tag circuit elements To0 to To5, and the high frequency circuit 201 A function of processing signals read from the IC circuit units 150 of the RFID circuit elements To0 to To5 to read information and generating access information for accessing the IC circuit units 150 of the RFID circuit elements To0 to To5. Operation including a control circuit 202 that controls the operation of the reader 200 as a whole and appropriate buttons and keys that can be operated by the operator. It has a (operation means) 203, a display unit for performing predetermined display a (display means) 204.

  FIG. 6 is a functional block diagram showing a detailed functional configuration of the high-frequency circuit 201.

  In FIG. 6, the high-frequency circuit 201 transmits a reflected wave from the RFID tag circuit elements To0 to To5 received by the antenna 210 and a transmission unit 212 that transmits signals to the RFID circuit elements To0 to To5 via the antenna 210. It comprises a receiving unit 213 for inputting and a transmission / reception separator 214.

  The transmission unit 212 includes an oscillation circuit 215 that functions as a carrier wave generation unit that generates a carrier wave for accessing (reading / writing) the RFID tag information of the IC circuit unit 150 of the RFID circuit elements To0 to To5, and the control described above. A transmission multiplier circuit 216 that modulates the carrier wave generated by the carrier wave generator based on the signal supplied from the circuit 202 (in this example, amplitude modulation based on the “TX_ASK” signal from the control circuit 202) (however, the “TX_ASK signal”) In this case, a variable amplification factor amplifier or the like may be used), and the modulation wave modulated by the transmission multiplication circuit 216 is amplified (in this example, the amplification factor is determined by the “TX_PWR” signal from the control circuit 202) And a variable transmission amplifier 217 for amplifying). The carrier wave generated by the carrier wave generator uses a high frequency such as a short wave band (13.56 MHz, etc.), a UHF band, a microwave band, etc., and the output of the transmission amplifier 217 passes through the transmission / reception separator 214. The signal is transmitted to the antenna 210 and supplied to the IC circuit unit 150 of the RFID circuit elements To0 to To5. Note that the RFID tag information transmitted and received is not limited to the signal modulated as described above, but may be only a carrier wave.

  The receiver 213 multiplies the reflected wave from the RFID circuit elements To0 to To5 received by the antenna 210 and the generated carrier wave, and the output of the reception first multiplier circuit 218. The first band-pass filter 219 for extracting only the signal of the necessary band from the first band-pass filter 219, the reception first amplifier 221 that amplifies the output of the first band-pass filter 219, and the output of the reception first amplifier 221 are further amplified. A first limiter 220 that converts the signal into a digital signal, a reflected wave received from the RFID circuit elements To0 to To5 received by the antenna 210, and a carrier wave whose phase is delayed by 90 ° after being generated by the phase shifter 227. A reception second multiplication circuit 222 to be multiplied and a second band filter for extracting only a signal of a necessary band from the output of the reception second multiplication circuit 222. A second filter 223 for amplifying the output of the second band pass filter 223, and a second limiter 224 for further amplifying the output of the second receiver amplifier 225 and converting it to a digital signal. Yes. The signal “RXS-I” output from the first limiter 220 and the signal “RXS-Q” output from the second limiter 224 are input to the control circuit 202 and processed.

  The outputs of the reception first amplifier 221 and the reception second amplifier 225 are also input to an RSSI (Received Signal Strength Indicator) circuit 226 serving as an intensity detection means, and a signal “RSSI” indicating the intensity of these signals is used as a control circuit. 202 is input. Thus, in this example, the reader 200 demodulates the reflected waves from the RFID circuit elements To0 to To5 by IQ orthogonal demodulation.

  The control circuit 202 outputs an amplification control signal and a modulation control signal to the high-frequency circuit transmission unit 212, and after receiving a reception signal from the high-frequency circuit reception unit 213, is read from the RFID circuit elements To0 to To5. Predetermined arithmetic processing for processing the received signal is performed.

  FIG. 7 is a functional block diagram showing detailed functions of the control circuit 202.

  In FIG. 7, a control circuit 202 is a so-called microcomputer, and includes a CPU 202A, a ROM 202B, a RAM 202C, which are central processing units, a circuit control unit 202D that transmits and receives signals to and from the high-frequency circuit 201, and the like. The signal processing is performed in accordance with a program stored in advance in the ROM 202B while using.

  In the configuration described above, the present embodiment is characterized by dividing a large amount of information (in this example, the above-described various information related to the projector 101, the personal computer 102, and the personal computer 103, which are target devices), into a plurality of RFID circuit elements To0. To To5, etc., access pointer information to the other RFID circuit elements To1 to To5 (sub tags) stored in the RFID tag circuit element To0 (main tag) first (the above example) In this case, the tag ID) is acquired, and the RFID circuit elements To1 to To5 (sub tags) are accessed based on the tag ID.

  FIGS. 8A to 8C are diagrams showing examples of displays displayed on the display unit 204 when the sequential access (information reading) operation is performed as described above. The reader 200 first outputs an unspecified search signal (or search signal). At this time, the main tag such as the RFID circuit element To0 and the other RFID circuit elements To1 to To5 and the like have different tag ID assignment modes so that the sub tag does not respond to the unspecified search signal or search signal. It has become. For example, when the main tag is an ID starting with “1111” and the sub tag is an ID starting with other than that, the reader 200 first performs a search by specifying a tag starting with 1111.

  A list is displayed based on the received signals from the RFID circuit elements that are within the communication range and respond to the unspecified search signal. FIG. 8A shows a display example at this time. In the illustrated example, each of the RFID labels T1, T2, and T3 attached to the projector 101, the personal computer 102, and the personal computer 103 in the system shown in FIG. Responses are received from all of the RFID tag circuit elements (main tags) To0 and the like provided, and “projector”, “PC1”, and “PC2” are displayed accordingly.

  When the operator selects one of the above displays via the operation unit 203, the corresponding other RFID circuit element (sub tag) read out from the selected RFID circuit element (main tag) To0 or the like. Information related to the stored contents such as To1 to To5 is displayed on the display unit 204. FIG. 8B shows a display example when “Projector” is selected on the display screen of FIG. 8A, and in the illustrated example, in the memory unit 155 shown in FIG. 4A described above. Corresponding to the stored contents, "Management", "Maintenance", "Function", "Status", and "Instruction Manual" are displayed.

  When the operator selects one of the above displays via the operation unit 203, a specific search signal is sent from the reader 200 by specifying a tag ID such as a RFID circuit element (sub tag) To1 to To5 corresponding to the selection. The corresponding information is read from the RFID circuit element and the content of the read information is displayed on the display unit 204. FIG. 8C shows a display example when “Maintenance” is selected on the display screen of FIG. 8B. In the example shown in FIG. 8C, storage in the memory unit 155 shown in FIG. Corresponding to the content, maintenance information of the projector 101 (replacement lamp model “DEF-123”, its order name “GHIJ Introduction Shokai”, its telephone number “456-7890”, etc.) is displayed.

  FIG. 9 is a flowchart showing a control procedure executed by the control circuit 202.

  First, in step S505, a signal for reading information stored in the IC circuit unit 150 such as the RFID tag circuit elements (main tags) To0 of the RFID labels T1, T2, and T3 is transmitted via the high frequency circuit 201 and the antenna 210. . Specifically, for example, if the first 4 bits of the ID are 1111, the subsequent bits are optional, and an unspecified tag is specified to acquire all the IDs and related information (corresponding device information). Search signal (or unspecified search signal) is generated and transmitted to the RFID circuit element (in this example, the main tag To0 related to the tag labels T1, T2, T3, etc.) existing in the communication range via the high-frequency circuit 201. , Prompting a reply.

  Thereafter, the process proceeds to step S510, and the reply signal transmitted (returned) from the RFID circuit element To0 or the like corresponding to the search signal, the unspecified search signal, or the like is received via the antenna 210, and the control circuit 202 via the high frequency circuit 201. It is determined whether or not

  If the reply signal has not been received, the determination is not satisfied, and the process returns to step S505 to repeat the same procedure. When there are a plurality of main tags to be searched, the process is repeated until reply signals are received from all the main tags. When all reply signals have been received, the determination at step S510 is satisfied, and the routine goes to step S515.

  In step S515, corresponding device information (“projector”, “PC1”, “PC2”, etc.) is read out and acquired according to the reply signals received from the RFID tag circuit elements To0, etc. of the RFID labels T1, T2, T3, respectively. The corresponding display signal is output to the display unit 204 for display (see FIG. 8A).

  Next, in step S520, it is determined whether or not a selection operation signal is input in the operation unit 203 in accordance with the display on the display unit 204 in step S515. If any selection operation signal among the device information displayed on the display unit 204 is input, the determination is satisfied, and the routine goes to Step S525.

  In step S525, information read from the RFID tag circuit elements (main tags) To0 and the like of the RFID labels T1 to T3 corresponding to the device selected in step S520 is acquired, and in step S530, a display signal corresponding to the information is obtained. The data is output to the display unit 204 and displayed (see FIG. 8B). At this time, in step S525, since all the stored contents are read from the main tag To0 and the like in step S510 and once stored in the RAM, information corresponding to the device selected in step S520 is acquired from the RAM.

  Next, in step S535, it is determined whether a selection operation signal has been input in the operation unit 203 in accordance with the display on the display unit 204 in step S530. If any selection operation signal is input from the information displayed on the display unit 204 (information indicating the storage contents of each sub tag), the determination is satisfied, and the routine goes to Step S540.

  In step S540, a signal for reading information stored in the IC circuit unit 150 such as the RFID circuit elements (sub tags) To1 to To5 selected in step S535 is transmitted. Specifically, for example, a specific search signal for reading information only from the designated RFID circuit element is generated by designating the ID of a particular tag, and the RFID circuit element (subtag To1) is generated via the high frequency circuit 201. To To5 etc.) and prompts for a reply.

  Thereafter, the process proceeds to step S545, and the reply signal transmitted (returned) from the RFID circuit elements To1 to To5 designated corresponding to the specific search signal is received via the antenna 210, and the control circuit 202 via the high frequency circuit 201. It is determined whether or not

  If the reply signal is not received, the determination is not satisfied, and the process returns to step S540 and the same procedure is repeated. If the reply signal is received, the determination at step S545 is satisfied, and the routine goes to step S550.

  In step S550, a display signal corresponding to information read from the RFID circuit elements (subtags) To1 to To5 is output to the display unit 204 for display (see FIG. 8C), and this flow is finished. To do.

  FIG. 10 is a flowchart showing a control procedure executed by the control unit 157 arranged in the IC circuit unit 150 such as the RFID circuit element (main tag) To0. In FIG. 10, first, in step S610, it is determined whether or not the signal transmitted from the antenna 210 of the reader 200 is received by the antenna 151. If it has been received, the determination is satisfied, and the routine goes to Step S620.

  In step S620, it is determined whether the signal confirmed to be received in step S610 is an unspecified search signal or a search signal that matches a tag ID of the RFID circuit element To0 or the like. If the determination is not satisfied, the process returns to step S610 and the same procedure is repeated. If the determination is satisfied, the process proceeds to step S630.

  In step S630, the storage information of the IC circuit unit 150, that is, the tag ID, the information related to the storage content, the access pointer information such as other RFID circuit elements (subtags) To1, To2, To3, To4, To5, and the like, respectively. The information related to the stored contents (see FIG. 4A) is transmitted to the antenna 210 of the reader 200 via the antenna 151 by the modem unit 156, and this flow is finished.

  FIG. 11 is a flowchart showing a control procedure executed by the control unit 157 arranged in the IC circuit unit 150 such as the RFID circuit elements (sub tags) To1 to To5. In FIG. 11, first, in step S <b> 660, it is determined whether or not the signal transmitted from the antenna 210 of the reader 200 is received by the antenna 151. If so, the determination is satisfied, and the routine goes to Step S670.

  In step S670, it is determined whether the signal confirmed to be received in step S660 is a specific search signal specifying the RFID circuit element. If the determination is not satisfied, the process returns to step S660 and the same procedure is repeated. If the determination is satisfied, the process proceeds to step S680.

  In step S680, the storage information of the IC circuit unit 150, that is, the tag ID, information that the tag shares and stores (management information, maintenance information, function information, status information, instruction information, etc.), etc. (FIG. 4B) ) To (f)) are transmitted to the antenna 210 of the reader 200 via the antenna 151 by the modem unit 156, and this flow is terminated.

  The RFID labels T1, T2, and T3 configured and used as described above. As a label producing apparatus 300 (an RFID tag manufacturing apparatus) that manufactures the RFID labels T1, T2, and T3, for example, an apparatus shown in FIG. Is used.

  In FIG. 12, this tag label producing device 300 (wireless tag information writing device) is detachable with a tag tape roll 304 wound with a tag tape 303 provided with a RFID circuit element To at a predetermined interval (or tag tape roll). The tag tape roll holder unit 310 to which a cartridge provided with 304 is detachable) and the tag circuit 303 fed out from the tag tape roll 304 and corresponding to the RFID circuit element To (= To0 to To5, etc.) A print head 305 that performs predetermined printing in the area S, an antenna 306 (device-side antenna) that transmits and receives information by wireless communication with the RFID circuit element To, a high-frequency circuit 301 and a control circuit 302, and a tag tape The tag tape 303 in which printing on the 303 and writing of the information on the RFID circuit element To are completed And a cutter 307 to the RFID label T (= the T1~T3 etc.) and cut to a length of constant.

  Although the detailed description of the high-frequency circuit 301 and the control circuit 302 is omitted, the high-frequency circuit 301 and the control circuit 302 have substantially the same functions as the high-frequency circuit 201 and the control circuit 202 of the reader 200, and the IC circuit unit 150 of the RFID circuit element To. Is transmitted to the RFID circuit element To via the device-side antenna 306, and information is written to the IC circuit unit 150 of the RFID circuit element To. The control circuit 302 is connected to other computers, servers, terminals, etc. via a wired or wireless communication line (network), and can send and receive information to / from them.

  FIG. 13 is a flowchart showing a control procedure executed by the control circuit 302 when the RFID label T is created.

  In FIG. 13, first, in step S705, the print information to be printed on the above-described region S of the RFID label T by the print head 305, which is separately input by an operation terminal (connected to the control circuit 302 via the communication line). And write information to the RFID circuit element To is acquired through the communication line. In addition, it may replace with the said operation terminal etc. and you may make it input from the operation part which is not shown of the tag label production apparatus 300.

  Thereafter, the process proceeds to step S710, and it is determined whether the information amount of the write information read in step S705 is equal to or greater than a predetermined value (for example, an upper limit value that can be stored in the IC circuit unit 150 of one RFID circuit element To). . If it is equal to or greater than the upper limit, the determination is satisfied and the routine goes to Step S715.

  Thereafter, in step S715, the number n of RFID circuit elements To storing the information divided and stored is determined according to the information amount of the write information input in step S705, and divided into the n pieces. The determination of the number n is performed by referring to the correlation between the amount of write information and the number n of the RFID circuit elements To stored in advance in the form of a table in the control circuit 302, for example. The number n of RFID tag circuit elements To is sequentially increased as the amount of write information increases.

  Then, the process proceeds to step S720, and the writing process of the RFID circuit element To serving as the main tag is first performed. That is, a control signal is output to a drive circuit (not shown) for driving the print head 305, and printing corresponding to the RFID label T is performed on the area S among the print data input in step S7050 ( In addition, printing may not be performed individually for each RFID circuit element To, but printing may be performed in the region S in common to a plurality of RFID circuit elements To as shown in FIG. Information corresponding to the tag circuit element To (in the above-described example of the RFID circuit element To0, tag ID, information related to stored contents, access pointer information of the RFID circuit element To serving as a sub tag, and related storage contents) Information). That is, access information to the IC circuit unit 150 of the RFID tag circuit element To of the RFID label T1 is generated via the high-frequency circuit 301, and transmitted to the RFID circuit element To via the device-side antenna 306. Information is written. As a result, for example, information having a data structure as illustrated in FIG. 2A is stored and held in the memory unit 155 of the IC circuit unit 150 of the RFID circuit element To.

  Thereafter, the process proceeds to step S725, and a writing process of the RFID circuit element To serving as the sub tag is performed. That is, in the same manner as described above, among the print data input in step S705, printing corresponding to the RFID label T is performed on the region S and information corresponding to the RFID circuit element To (the above-described RFID tag circuit element To1). In this example, the tag ID and the management information of the projector 101 are written (note that printing is not performed for each RFID circuit element To individually, and a plurality of RFID circuit elements To are shown in FIG. In the case of printing in the area S in common, the common printing is continuously performed.) As a result, for example, information of the data structure as illustrated in FIG. Is stored in the memory unit 155 of the IC circuit unit 150.

  Note that in the writing process in steps S720 and S7250, in order to prevent communication interference between the plurality of RFID tag circuit elements To, each RFID circuit element is assigned with a temporary ID previously assigned to each RFID circuit element at the time of manufacture. It is preferable to write a new tag ID, article information, etc. after identifying the item. In other words, if the number of RFID circuit elements To put in one RFID tag T changes every time it is created, a temporary ID is assigned without distinguishing the main tag and sub tag IDs from the beginning. Just keep it. When the number of RFID circuit elements To put in one RFID tag T is fixed, the temporary ID may be used as the ID of the main tag and the sub tag as it is. In this case, each ID is given in advance so as to include a main tag (for example, an ID starting with 1111) and a plurality of sub tags (for example, an ID starting with other than 1111).

  When step S725 is completed, in step S730, it is determined whether or not the writing process of the n RFID tag circuit elements To (sub tags) has been completed. If the determination is not satisfied, the process returns to step S725, and writing processing of the RFID circuit element To that becomes the next subtag is performed. Until the writing process of the n RFID circuit elements To (subtags) is completed in this manner, the tape is driven by the tape transport driving means (not shown) and the RFID circuit elements To are sequentially sent to write the corresponding divided information. (In the case where printing is not performed for each RFID circuit element To individually, but printing is performed in the area S in common with a plurality of RFID circuit elements To as shown in FIG. 2A). Is controlled by the control circuit 302 so that common printing is completed by the end of the writing process of the n RFID circuit elements To).

  As described above, after the information writing to the n RFID circuit elements To (subtags) is completed and the determination in step S730 is satisfied, the process proceeds to step S735, and the tape is cut by the cutter 307. The RFID label T having the number of main tags and n number of sub tags is discharged to the outside of the apparatus 300, and this flow is finished.

  In the above, the first RFID circuit element To is the main tag and the subsequent RFID circuit elements To are subtags in the tape transport direction. However, the present invention is not limited to this. It may not be a thing of the thing, and it is good also as an operator can set suitably. In any case, the RFID tag circuit element To for the main tag and the RFID tag circuit element To for the sub tag have the same (common) configuration of the elements themselves. As described above, whether the main tag that makes a response when receiving an unspecified search signal or a search signal or the sub tag that makes no response when receiving an unspecified search signal or a search signal is used in the IC circuit unit 150. The control unit 157 is set by software.

  Further, the above is an example in which the divided article information or the like is not stored in the IC circuit unit 150 of the RFID circuit element To0 that is the main tag, but may be stored in the main tag. Conversely, it is not always necessary to record the contents in all the sub tags. That is, some RFID circuit elements (subtags) included in the label T may be left empty, and may be added or modified later as necessary.

  On the other hand, if the information amount of the write information read in step S705 is less than the predetermined value, the determination in step S710 is not satisfied, and the process proceeds to step S740, where normal information is applied only to one RFID circuit element To. After writing (for example, writing tag ID and article information to be stored) and printing, the tape is cut in step S735 to create the RFID label T having one RFID circuit element To, and this flow Exit.

  In the above description, the RFID tag circuit elements To are arranged in a line in the longitudinal direction of the tape, and division information is written in order on the RFID tag circuit elements T to create the RFID label T. As shown in FIG. 2 (b), the same method as described above may be used when the RFID circuit elements To are arranged in two rows.

  In the above description, whether the signal is an unspecified search signal or a search signal when the control unit 157 of the IC circuit unit 150 of the RFID circuit element To that is the main tag receives a signal from the interrogator according to each claim. And a switching means for switching whether or not to output a response signal to the interrogator according to the determination result by the tag side determination means.

  Further, steps S505, S510, and S525 of the flow shown in FIG. 9 executed by the control circuit 202 of the reader 200 include first access information (an unspecified search signal or a search signal) including an identifier of one RFID circuit element. ) And transmitted to one RFID circuit element via the device-side antenna, and an access pointer for accessing another RFID circuit element stored in the IC circuit unit of the one RFID circuit element First information access means for reading information including information is configured, and steps S540 and S545 generate second access information (specific search signal) based on the access pointer information acquired by the first information access means, It is transmitted to other RFID circuit elements via the device side antenna and stored in the IC circuit section of the other RFID circuit elements. Constituting the second information access means for reading information. Step S540 also constitutes an identifier generating means for generating an identifier of another RFID circuit element based on the access pointer information acquired by the first information access means.

  Further, in the control procedure shown in FIG. 13 executed by the control circuit 302 of the tag label producing apparatus 300, step S720 or step S725 is an access information generating means for generating access information to the IC circuit unit, at least access pointer information. Device-side information access means for transmitting information to the RFID circuit element via the antenna on the device side and writing information to the IC circuit unit, for accessing from one RFID circuit element to another RFID circuit element Access pointer information generating means for generating access pointer information is configured. Further, step S710 constitutes device side determination means for determining whether the amount of access information is larger than the storage capacity of one RFID circuit element.

  In this embodiment configured as described above, when a large amount of information is to be stored in the RFID circuit element, the information to be stored is divided and stored in a plurality of RFID circuit elements To. At this time, only one predetermined RFID circuit element To0 or the like is used as a main tag that responds to the unspecified search signal or search signal, and the remaining RFID circuit elements To1 to To5 are used as the unspecified search signal or search signal. The subtags that do not respond to the information are stored in the IC circuit unit 150 such as the RFID circuit element To0 as the main tag, and the pointer information of the RFID circuit elements To1 to To5 is stored.

  At the time of reading, an unspecified search signal or a search signal is transmitted to access the RFID tag circuit element (main tag) To0 or the like as the main tag, and pointer information of other RFID tag circuit elements (sub tags) To1 to To5 And the corresponding information can be easily obtained by transmitting a specific search signal to the RFID circuit elements (subtags) To1 to To5 related to the division information to be obtained and accessing the IC circuit unit 150. . In this way, instead of simply calling and reading all of the plurality of RFID circuit elements that store and store a large amount of information, it is possible to associate them with pointer information from one RFID circuit element (main tag) To0 or the like. By reading to other RFID circuit elements (subtags) To1 to To5, a large amount of information can be held as a whole even if the capacity that can be recorded in one RFID circuit element To is small, and it can be quickly done. It is possible to read the large amount of information efficiently.

  In the present embodiment, in particular, the display unit 204 of the reader 200 displays related information (or a part thereof) related to the stored contents of the RFID tag circuit elements To1 to To5 as sub tags acquired together with the access pointer information. Thus, the stored contents of the sub tags can be displayed (see FIG. 8B) and made visible to the operator. In the present embodiment, in particular, the IC circuit unit 150 such as the RFID tag circuit element To0 as the main tag is related to the stored contents of the other RFID tag circuit elements To1 to To5 as sub tags in addition to the access pointer information. Information is stored and held. As a result, as described above, the stored contents of the IC circuit unit 150 of the sub tag can be displayed as shown in FIG. In particular, by displaying a list of all relevant information as shown in FIG. 8B on the display unit 204, it is possible to display all the stored contents of the subtags in a list so that the operator can surely recognize them. The same effect can be obtained not only as a list display but also as a scroll display. In particular, it is efficient to make the display capacity of the display unit 204 equal to the storage capacity of related information that can be stored in one RFID circuit element To (the storage capacity for storing all related information related to the access pointer) ( (Refer FIG.8 (b) and FIG.8 (c)).

  In the present embodiment, in particular, by providing the reader 200 with the operation unit 203 that can be selected and operated by the operator, the operator can display each RFID circuit element (sub tag) To1 to To5 displayed on the display unit 204, etc. After the related information display related to the stored contents is viewed, it is possible to select which of the information is to be read out.

  In the present embodiment, in particular, the RFID label T1 or the like includes a predetermined printing area S corresponding to information stored in the IC circuit unit 150 of each RFID circuit element To. As a result, the contents of the large-capacity information divided and stored in the plurality of RFID circuit elements To1 to To5 are printed (see FIG. 2 (a), etc.), so that the contents are clearly shown to the operator at a glance. Can do.

  Further, particularly in the tag label producing apparatus 300 of this embodiment, it is determined whether the write information is larger than the storage capacity of one RFID circuit element To (step S710 in FIG. 13), and the write information is determined according to the determination result. Is divided into a plurality of RFID circuit elements To and determined to be written. As a result, when the amount of information is large, the information is divided and written to each RFID circuit element To, while when the amount of information is small, the information is not divided and all are written to one RFID circuit element To as usual. Can be done.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the gist and the technical idea. The modifications will be described below.

(1) When a separate label is used for each RFID circuit element In the above embodiment, the RFID circuit element (main tag) To0 and the like and the plurality of RFID tag circuit elements (sub tags) To1 to To5 are all in one. Although the (common) RFID label T is used, the present invention is not limited to this, and all RFID circuit elements To may be used as separate labels.

  FIGS. 14A to 14E are diagrams showing such a modification, and correspond to FIG. 2 of the above embodiment. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. FIG. 14A is a top view (left side in the drawing) and a bottom view (right side in the drawing) of the RFID label T-0 including the RFID tag circuit element To0 as the main tag. Similarly, FIG. 14B is a top view (left side in the figure) and a bottom view (right side in the figure) of the RFID label T-1 including the RFID tag circuit element To1 as a sub tag, and FIG. 14C is a sub tag. FIG. 14D is a top view (left side in the figure) and a bottom view (right side in the figure) of the RFID label T-2 having a certain RFID circuit element To2, and FIG. 14D is a RFID tag having the RFID circuit element To3 as a sub tag. FIG. 14E is a top view (left side in the drawing) and a bottom view (right side in the drawing) of T-3, and FIG. It is a bottom view (illustration right side). As shown in FIGS. 14 (a) to 14 (e), the front side (upper surface) of the base material 2 of each of the RFID label T-1 to T-4 is provided with a print area S, and corresponding print information is described. Yes. In this example, an interrogator prototype in the RFID system described above is used as a target device, and the test status of the prototype is recorded as an example. Each print area S corresponds to “RFID-prototype A”. “0” to “RFID-prototype A4” are printed.

  15A to 15E show data stored in the memory unit 155 of the RFID circuit element To0 as the main tag and RFID circuit elements To1, To2, To3, To4, and To5 as sub tags. It is a figure which represents the contents each conceptually.

  FIG. 15A shows the data content of the RFID tag circuit element To0 (main tag) of the RFID tag label T-0. The tag ID (“ID0” in this example) as an identifier of the RFID tag circuit element, and the storage Information related to the contents (in this example, information of write date and time) and the access pointer information of the remaining four RFID circuit elements (sub tags) To1, To2, To3, To4 (in this example, tags of each RFID circuit element) ID itself) and information related to each stored content (in this example, “specification”, “evaluation result”, “specification change”, “post-change result”) are stored and held in the memory unit 155.

  FIG. 15B shows the data content of the RFID circuit element To1 (first subtag) of the RFID label T-1, and the tag ID (“ID1” in this example) as tag identification information, Article information to be shared and stored, that is, specification information of the interrogator that is the target device in this example (output “5 mW”, amplifier type “G1”, antenna type “A1”, writing position “P1”, etc.) Is stored in the memory unit 155.

  FIG. 15C shows the data content of the RFID circuit element To2 (second sub tag) of the RFID label T-2. The tag ID (“ID2” in this example) as tag identification information, Article information to be shared and stored, that is, in this example, evaluation result information (output “4.5 mW”, effective area “10 mm”, error rate “5%”, etc.) of the interrogator is stored in the memory unit 155. keeping.

  FIG. 15D shows the data content of the RFID circuit element To3 (third subtag) of the RFID label T-3. The tag ID (“ID3” in this example) as tag identification information, Article information to be shared and stored, that is, in this example, specification change information of the interrogator (output “5 mW”, amplifier type “G2”, antenna type “A2”, writing position “P1”, etc. The contents changed from the initial specification shown in FIG. 15C) are stored in the memory unit 155.

  FIG. 15E shows the data content of the RFID circuit element To4 (fourth subtag) of the RFID label T-4. The tag ID (“ID4” in this example) as tag identification information, Article information to be shared and stored, that is, in this example, evaluation result information after changing the specifications of the interrogator (output “5.2 mW”, effective area “15 mm”, error rate “0%”, etc.) This is stored in the unit 155.

  Creation of the RFID labels T-0 to T-4 for the RFID circuit elements To0 to To4 according to this modification can also be performed using, for example, the RFID label producing apparatus 300 described above. In this case, for example, in the flow shown in FIG. 13, the tape cutting procedure by the cutter 307 that has been performed only once in step S735 is incorporated into the main tag writing processing procedure in step S720 and the sub tag writing processing procedure in step S725. What is necessary is just to cut | disconnect a tape for every writing to the tag circuit element To, and to make it individual RFID tag labels T-0 to T-4. About another point, it is as substantially the same as the said embodiment.

  Even in this modification, a large amount of information can be held as a whole even if the capacity that can be recorded in one RFID circuit element To is small, and the large-capacity information can be read quickly and efficiently as in the above embodiment. The effect of being able to do it can be acquired.

  In addition, in this modification, in particular, the RFID tag label T is dispersed for each RFID circuit element To, so that the amount of information to be written increases (in the above example, the test of the prototype is further repeated). As the prototype is changed and the data increases, RFID tag labels with sub tags are added as necessary, and the ID of the increased tag is added to the main tag to add additional information and from the beginning. All the information history (in this example, the change history of the prototype, etc.) can be recorded. In addition, the information can be confirmed immediately on the spot. If the capacity of the RFID tag circuit element To0 that is the main tag is insufficient, in the above example, the basic specification and the latest history may be recorded in the main tag.

(2) In the case where pointer information is also stored in the sub tag and sequentially read and read. That is, as in the above embodiment and the modification of (1) above, the hierarchical structure (tree structure) such as the main tag → each sub tag Rather than the main tag responding to the unspecified search signal or search signal (stores pointer information of the sub tag A) → sub tag A (stores pointer information of the next sub tag B) → sub tag B (pointer information of the sub tag C) In this case, the pointer information of the next sub tag is also stored in each sub tag, and the entire information of a large amount of information is acquired by reading in the relay method as described above.

  16A to 16E are stored in the memory unit 155 of the RFID circuit element To0 as the main tag and the RFID circuit elements To1, To2, To3, and To4 as the sub tags in the present modification. FIG. 3 is a diagram conceptually showing data contents. Portions that are the same as in the above embodiment and the modified example of (1) are assigned the same reference numerals, and descriptions thereof are omitted as appropriate.

  FIG. 16A shows the data content of the RFID tag circuit element To0 (main tag) of the RFID tag label T-0. The tag ID (in this example, “ID0”) as an identifier of the RFID tag circuit element, Article information and the like ("ABCD" in this example) that the tag shares and stores, and the access pointer information of the sub tag To1 that is the next RFID circuit element (in the information reading order) (in this example, the tag ID of the sub tag) "ID1") is stored and held in the memory unit 155.

  FIG. 16B shows the data content of the RFID circuit element To1 (first sub tag) of the RFID label T-1, and the tag ID (“ID1” in this example) as tag identification information, Article information to be shared and stored (in this example, “EFGHIJK”) and the access pointer information (in this example, subtag tag ID “ID2” in the subtag To2 to be the next RFID circuit element (in the information reading order)) Is stored in the memory unit 155.

  FIG. 16C shows the data content of the RFID circuit element To2 (second sub tag) of the RFID label T-2. The tag ID (“ID2” in this example) as tag identification information, The article information to be shared and stored (in this example, “LMN”) and the access pointer information of the sub tag To3 to be the next RFID circuit element (in the information reading order) (in this example, the tag ID “ID3 of the sub tag) Is stored in the memory unit 155.

  FIG. 16D shows the data content of the RFID circuit element To3 (third subtag) of the RFID label T-3. The tag ID (“ID3” in this example) as tag identification information, The article information to be shared and stored (in this example, “OPQRSTUVW”) and the access pointer information of the sub tag To4 to be the next RFID circuit element (in the information reading order) (in this example, the tag ID “ID4 of the sub tag) Is stored in the memory unit 155.

  FIG. 16E shows the data content of the RFID circuit element To4 (fourth sub tag) of the RFID label T-4. The tag ID (“ID4” in this example) as tag identification information, Article information to be shared and stored (in this example, “XYZ”) and information indicating that this is the last RFID circuit element without this next RFID circuit element (in this information reading order) (in this example) Is stored in the memory unit 155.

  FIG. 17 is a flowchart showing a control procedure executed by the control circuit 202 of the reader 200 in this modification, and corresponds to FIG. 9 of the above embodiment. The same steps as those in FIG. 9 are denoted by the same reference numerals and the description thereof is omitted.

  In FIG. 17, in addition to the control procedure shown in FIG. 9, step S545, step S546, step S547, and step S548 are newly added. That is, in step S545, it is determined whether or not a reply signal transmitted (returned) from the RFID circuit elements (subtags) To1 to To4 corresponding to the specific search signal or the like is fetched. The process moves to step S546.

  In step S546, it is determined whether the information received and read from the sub tag in step S545 includes pointer information to the next sub tag. If there is pointer information, the process moves to newly provided step S547, and a display signal corresponding to the information read from the sub tag is output to the display unit 204 to display the same as in step S550. At this time, for example, predetermined display is also performed for RFID tag circuit elements (sub tags) To2 to To4 to be read next indicated by the pointer information. In other words, whether there is a continuation is displayed. If there is a continuation, a display prompting the user to perform a predetermined operation is displayed on the operation unit 203 when the continuation is read. Thereafter, the process proceeds to newly provided step S548.

  In step S548, it is determined whether an instruction signal (operation signal) for reading information on the next sub tag is input in the operation unit 203 in accordance with the display on the display unit 204 in step S547. If no instruction signal is input, the process returns to step S548 to enter an input standby state. If the instruction signal is input, the determination is satisfied, and the process returns to step S540, and the procedure of the specific search signal transmission in step S540 and the reply signal reception determination in step S545 is performed for the next subtag. In this manner, information of the IC circuit unit 150 of the sub tag is sequentially read based on the pointer information while repeating step S540 → step S545 → step S546 → step S547 → step S548 → step S540 →. Then, since the pointer information does not exist when it becomes the last subtag (in the above example, the RFID circuit element To4), the determination in step S546 is not satisfied, and the process proceeds to step S550 similar to FIG. A display signal corresponding to the information is output to the display unit 204 for display, and this flow is finished.

  The RFID labels T-0 to T-4 for the RFID circuit elements To0 to To4 according to the present modification can also be created using, for example, the aforementioned RFID label producing apparatus 300, as in the modification (1). it can. Other points are almost the same as in the above embodiment.

  In the above, step S546 in the flow shown in FIG. 17 constitutes an interrogator-side determination unit that determines whether or not the access pointer information is included in the information read from the IC circuit unit.

  Also in this modification, the same effect as the above embodiment can be obtained. That is, in this modification, when a large amount of information is to be stored in the RFID circuit element, the information to be stored is divided and stored in a plurality of RFID circuit elements To. At this time, only one predetermined RFID circuit element To0 or the like is used as a main tag that responds to the unspecified search signal or search signal, and the remaining RFID circuit elements To1 to To4 are set to the unspecified search signal or search signal. Subtags that do not respond. Then, along the flow of information reading after division, the RFID circuit element (main tag) To0 stores the pointer information of the RFID circuit element (first subtag) To1 in the IC circuit unit 150, and the RFID circuit element. The (first subtag) To1 stores the pointer information of the RFID circuit element (second subtag) To2 in the IC circuit unit 150, and the RFID circuit element (second subtag) To2 contains the RFID tag circuit element (third subtag). ) The pointer information of To3 is stored in the IC circuit unit 150, and the pointer information of the RFID circuit element (fourth subtag) To4 is stored in the IC circuit unit 150 in the RFID circuit element (third subtag) To3.

  At the time of reading, an unspecified search signal or a search signal is transmitted to access the RFID tag circuit element (main tag) To0, which is the main tag, and the division information shared is read out and the RFID circuit element (first tag) Sub pointer) To1 pointer information is acquired. Based on the pointer information, a specific search signal is transmitted to the RFID circuit element (first subtag) To1 related to the next division information, the IC circuit unit 150 is accessed, the division information shared is read out, and the RFID circuit Pointer information of the element (second sub tag) To2 is acquired. Further, similarly, based on the pointer information, a specific search signal is transmitted to the RFID circuit element (second sub tag) To2 related to the next division information to access the IC circuit unit 150, and the division information shared is read and wirelessly transmitted. The pointer information of the tag circuit element (third sub tag) To3 is acquired. Further, similarly, based on the pointer information, a specific search signal is transmitted to the RFID circuit element (third subtag) To3 related to the next division information to access the IC circuit unit 150, and the division information shared is read out and wirelessly transmitted. The pointer information of the tag circuit element (fourth sub tag) To4 is acquired. Similarly, based on the pointer information, a specific search signal is transmitted to the RFID circuit element (fourth subtag) To4 related to the next division information to access the IC circuit section 150, and the divided division information is read out. By reading information in the order of main tag → first sub tag → second sub tag → third sub tag → fourth sub tag along the flow of information as described above, the entire picture of a large amount of information can be easily obtained. be able to.

  As described above, instead of simply calling and reading all of the plurality of RFID circuit elements in which a large amount of information is divided and stored, the association is performed by pointer information from one RFID circuit element (main tag) To0 or the like. By sequentially reading to other RFID circuit elements (sub tags) To1 to To4, a large amount of information can be held as a whole even if the capacity recordable in one RFID circuit element To is small. The large-capacity information can be read quickly and efficiently. The number of subtags can be appropriately increased according to the amount of information. When all the RFID circuit elements To are provided in one RFID tag label T as in the above-described embodiment, the length of a necessary number of RFID circuit elements To is included. It is sufficient to create a label.

  In the present modification, in particular, in step S546 of the flow shown in FIG. 17, it is determined whether the information read from the IC circuit unit 150 includes access pointer information. Thereby, information can be read from the reader 200 side with respect to both the RFID circuit elements To0, To1, To2, To3 including the access pointer information and the RFID circuit element To4 not including the access pointer information. As a result, it is possible to smoothly read information from each RFID circuit element in order, and to acquire the large amount of information reliably.

  As a further modification, as shown in FIG. 18A to FIG. 18E corresponding to FIG. 16A to FIG. For each tag circuit element To, the tag ID of the RFID tag circuit element in the reading order before the tag may be written together (the main tag ID is written in the first subtag and the first subtag is written in the second subtag). Etc.). In this way, even if the RFID circuit element in the middle cannot be read due to label peeling or the like, it is possible to optionally read all the subtags with a subtag read command and notify the user which information is missing from the context.

  When a wireless tag circuit element (so-called proximity tag) having a very short communication distance is used, the reader (for example, portable type) 200 is applied in order of main tag → first sub tag → second sub tag →. By clarifying the reading order as described above, a warning or the like can be given to the operator when the next reading order is wrong. In the case of the proximity tag, it is effective to print the reading order in the print area of the RFID label T.

(3) Others In the above, the case where the access pointer information to another RFID circuit element To stored in one RFID circuit element To is the tag ID itself of the other RFID circuit element To is taken as an example. Although explained, it is not limited to this. That is, not all of the tag IDs but a part thereof (lower part etc.) may be used. Also, some information that can acquire and specify the tag ID may be used. Examples of this include computation-related information (a predetermined value that results in a subtag tag ID when a predetermined operation such as addition multiplication is performed on the tag ID of the main tag), difference information (main to obtain the tag ID of the subtag) A difference to be added to the tag ID of the tag is considered. Other than this, any information that can be used to obtain the tag ID of the sub tag by performing some calculation is sufficient. In addition, acquisition / identification of tag IDs in this way is an identifier generation unit that generates identifiers of other RFID circuit elements based on the access pointer information acquired by the first information access unit according to each claim. Is configured.

  Further, as another example of the method for identifying the main tag and the sub tag, there may be information for distinguishing the main tag and the sub tag at a specific position of the tag ID. Moreover, you may have the information which distinguishes a main tag and a sub tag separately from tag ID. Furthermore, there may be further subtags under the above subtags (multiple hierarchical structure)

  Furthermore, you may combine suitably the method in the embodiment mentioned above and the modification of (1)-(3). Also in these cases, it is possible to obtain an effect that combines the effects of the combined embodiment or modification, and it is possible to obtain the original effect of the present invention that the operator's convenience can be greatly improved as described above.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

1 is a conceptual system configuration diagram illustrating an entire RFID tag information reading system to which an RFID tag circuit element according to an embodiment of the present invention is applied. 1A and 1B are a top view and a bottom view illustrating an example of an overall schematic structure of an RFID label according to an embodiment of the present invention. It is a block diagram showing an example of a functional structure of the RFID circuit element with which the RFID tag label was equipped. It is a figure which represents notionally the data content memorize | stored in the memory part of the RFID circuit element with which the RFID tag label was equipped. It is a functional block diagram showing the detailed function of the reader by one Embodiment of this invention. It is a functional block diagram showing the detailed functional structure of a high frequency circuit. It is a functional block diagram showing the detailed function of a control circuit. It is a figure showing the example of the display displayed on a display part when performing information reading operation. It is a flowchart showing the control procedure which a control circuit performs. It is a flowchart showing the control procedure which the control part arrange | positioned at the IC circuit part of a radio | wireless tag circuit element (main tag) performs. It is a flowchart showing the control procedure which the control part arrange | positioned at the IC circuit part of a radio | wireless tag circuit element (sub tag) performs. It is a conceptual diagram showing the structure of the tag label production apparatus by one Embodiment of this invention. It is a flowchart showing the control procedure performed by a control circuit at the time of preparation of a RFID label. It is a figure showing the modification which makes another label for every RFID circuit element. It is a figure which represents each data content memorize | stored in the memory part of the main tag and the sub tag conceptually. It is a figure which represents each data content memorize | stored in the memory part of the main tag and the sub tag in the modification which memorize | stores pointer information also in a sub tag, respectively. It is a flowchart showing the control procedure which the control circuit of a reader performs. It is a figure showing the case where the tag ID of the reading order before a tag is also written together.

Explanation of symbols

150 IC circuit section 151 Antenna (tag side antenna)
157 Control unit (tag side determination means, switching means)
200 Reader (Interrogator)
204 Display section (display means)
300 Tag Label Making Device (Radio Tag Label Making Device)
304 Tag tape roll 306 Antenna (device side antenna)
310 Tag tape roll holder part S Print area T RFID label To RFID tag circuit element To0 RFID tag circuit element (main tag)
To1 RFID tag circuit element (sub tag)
To2 wireless tag circuit element (sub tag)
To3 RFID tag circuit element (sub tag)
To4 wireless tag circuit element (sub tag)
To5 wireless tag circuit element (sub tag)
T1 RFID tag T2 RFID tag T3 RFID tag

Claims (21)

An IC circuit unit for storing information;
A wireless tag circuit element having a tag-side antenna connected to the IC circuit unit,
The IC circuit unit stores and holds access pointer information for accessing another RFID circuit element. The RFID circuit element according to claim 1, wherein
The RFID circuit element, wherein the IC circuit unit is configured to be able to set whether or not to output a response signal for the unspecified search signal or the search signal when the interrogator receives the search signal. The wireless tag circuit element according to claim 2,
Tag side determination means for determining whether the signal is an unspecified search signal or a search signal when receiving a signal from the interrogator,
A wireless tag circuit element comprising: switching means for switching whether or not to output a response signal to the interrogator according to a determination result by the tag side determination means. The RFID circuit element according to claim 1, wherein
The IC circuit unit stores and holds an identifier of the other RFID tag circuit element or a part thereof as the access pointer information. The RFID circuit element according to claim 1, wherein
The IC circuit unit stores and holds information for acquiring an identifier of the other RFID tag circuit element as the access pointer information. The RFID circuit element according to any one of claims 1 to 5,
The RFID circuit element, wherein the IC circuit unit stores and holds the access pointer information related to the plurality of other RFID tag circuit elements. The RFID circuit element according to any one of claims 1 to 6,
The IC circuit unit stores and holds related information related to storage contents of the other RFID tag circuit elements in addition to the access pointer information. An RFID label having a plurality of RFID circuit elements each having an IC circuit unit for storing information and a tag side antenna connected to the IC circuit unit,
The RFID label according to claim 1, wherein the IC circuit portion of one RFID circuit element among the plurality of RFID circuit elements stores and holds access pointer information for accessing another RFID circuit element. The RFID label according to claim 8, wherein
The IC circuit unit of at least one RFID tag circuit element among the plurality of RFID tag circuit elements determines whether or not to output a response signal to the signal when an unspecified search signal or search signal is received from the interrogator. A RFID label characterized by being configured to be settable. The RFID label according to claim 8 or 9,
A RFID label having a predetermined print area corresponding to information stored in the IC circuit section of the plurality of RFID tag circuit elements. A device-side antenna that transmits and receives information by wireless communication between an IC circuit unit that stores information and a RFID tag circuit element that has a tag-side antenna connected to the IC circuit unit;
Generating first access information including an identifier of the one RFID circuit element, transmitting the first access information to the one RFID circuit element via the device-side antenna, and transmitting the first access information to the IC circuit unit of the one RFID circuit element First information access means for reading stored information including access pointer information for accessing other RFID circuit elements;
The second access information based on the access pointer information acquired by the first information access means is generated, transmitted to the other RFID circuit element via the device-side antenna, and the other RFID circuit element An interrogator comprising second information access means for reading information stored in the IC circuit section. The interrogator of claim 11,
Based on the access pointer information acquired by the first information access means, having identifier generation means for generating an identifier of the other RFID circuit element;
The interrogator characterized in that the second information access means generates the second access information including the identifier generated by the identifier generation means. The interrogator according to claim 11 or 12,
An interrogator comprising display means for displaying at least a part of the related information related to the stored contents of the other RFID tag circuit element acquired together with the access pointer information by the first information access means. The interrogator of claim 13,
The first information access means reads a plurality of the access pointer information for accessing a plurality of other RFID circuit elements from the IC circuit unit,
The display means displays at least a part of a plurality of related information obtained by the first information access means together with the plurality of access pointer information and related to storage contents of the plurality of other RFID tag circuit elements. Interrogator characterized by. The interrogator of claim 14,
The interrogator characterized in that the display means displays a list of all the related information related to the stored contents of the plurality of other RFID tag circuit elements. The interrogator of claim 14,
The interrogator characterized in that the display means displays all the related information related to the stored contents of the plurality of other RFID circuit elements in a scrollable manner. The interrogator of claim 16,
Based on the display of at least a part of the plurality of related information related to the storage contents of each of the plurality of other RFID circuit elements displayed by the display unit, the other information as a reading target of the second information access unit An interrogator comprising operation means that allows an operator to select and operate a radio tag circuit element. The interrogator according to any one of claims 11 to 17,
The first information access unit includes an interrogator side determination unit that determines whether the information read from the IC circuit unit includes the access pointer information.
The second information access unit generates the second access information based on the access pointer information when the determination by the interrogator-side determination unit is satisfied, and the IC circuit unit of the other RFID circuit element An interrogator characterized by reading information stored in the. A tag tape roll holder part to which a tag tape roll wound with a tag tape having a wireless tag circuit element having an IC circuit part for storing information can be attached and detached;
A device-side antenna that transmits and receives information by wireless communication with the plurality of RFID tag circuit elements continuously arranged in the longitudinal direction of the tag tape that is fed out from the tag tape roll;
Access information generating means for generating access information to the IC circuit unit;
Access pointer information generating means for generating access pointer information for accessing from one RFID circuit element to another RFID circuit element;
And a device-side information access unit that transmits the access information including at least the access pointer information to the wireless tag circuit element via the device-side antenna and writes information to the IC circuit unit. Tag label making device. The RFID label producing apparatus according to claim 19,
The apparatus-side information access means is capable of setting whether to output a response signal to the IC circuit unit when the unspecified search signal or the search signal is received from the interrogator. Tag label making device. The RFID label producing apparatus according to claim 19 or 20,
Device-side determination means for determining whether the amount of information written to the RFID circuit element is larger than the storage capacity of one RFID circuit element;
The device-side information access unit divides and writes the access information into a plurality of the RFID circuit elements in accordance with a determination result by the device-side determination unit.

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