JP2005166834A - Radio tag cartridge and radio tag information communication apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio tag cartridge and a radio tag information communication apparatus in which communication of radio tag information can be realized only with a radio tag circuit element as the write object with a simplified structure and a simple method even when high frequency such as UHF band is used. <P>SOLUTION: A profile where an electromagnetic wave shielding member 31 is adhered to the internal side of the housing 29 of a cartridge 28 is illustrated in the figure. In this case, the electromagnetic wave shielding member is adhered to the entire surface of the internal side of the housing 29 with a welding post 29a. As an alternative method, the electromagnetic wave shielding can be implemented by evaporating an electromagnetic wave shielding member to the housing 29 of cartridge 28, coating the electromagnetic wave shielding member, or conducting the plating process. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wireless tag cartridge and a wireless tag information communication apparatus for generating a wireless tag label capable of exchanging information with the outside by wireless communication, and more particularly to a wireless tag cartridge and a wireless tag that accommodate a plurality of wireless tags. The present invention relates to a wireless tag information communication device that reads or writes wireless tag information by wireless communication with a wireless tag circuit element.

  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. For example, a wireless tag circuit element included in a label-like wireless tag includes an IC circuit unit that stores predetermined information and an antenna unit that is connected to the IC circuit unit and transmits and receives information. Even when the tag is dirty or placed at an invisible position, information can be read / written from / to the IC circuit section from the reader / writer side, and various items such as product management and inspection processes can be performed. Practical use is expected in various fields.

As a writer (writing device) for writing information to such a RFID circuit element, for example, the one described in Patent Document 1 is known. In this prior art, belt-shaped paper with rectangular labels attached at predetermined intervals is sequentially unwound from the paper supply unit and supplied from one side of the housing, and the predetermined information generated by the module in the housing is By transmitting to the RFID circuit element side affixed to the label via the read / write antenna provided in the belt-shaped paper conveyance path, writing is sequentially performed on the IC circuit portion of the RFID circuit element, Finally, it is discharged from the other side of the housing.
JP 2002-2026 (paragraph numbers 0002 to 0009, FIGS. 1 to 4)

  In communication with wireless tags, the 125 KHz band that has been used for a long time and the 13.56 MHz band that has been used for a long time have been used. However, since those using these bands have a short communication distance, there is a problem that the use as a wireless tag is limited. Therefore, in the future, the use of high frequencies such as UHF bands (830 to 930 MHz band, 2.45 GHz band, etc.) that are widely used in Europe and the United States is being considered as frequency bands.

  In the above prior art, no special consideration has been given to the case of using such a high frequency band, so that as it is, not only the RFID tag circuit element that is the original information writing target due to the increase in communication distance, but also the subsequent When other RFID circuit is within the communicable area and communication of inquiry of RFID tag information from the outside to the target RFID tag is performed, a response signal is also received from other succeeding RFID tag circuit elements. The wireless tag information cannot be communicated only with the target wireless tag circuit element.

  An object of the present invention is to solve the above-described problems. Even when a high frequency such as a UHF band is used, the RFID tag circuit element to be written can be used with a simple structure and a simple technique. An object of the present invention is to provide a wireless tag cartridge and a wireless tag information communication apparatus capable of communicating wireless tag information only between them.

  In order to achieve the above object, a wireless tag cartridge according to claim 1 of the present invention is a box-shaped wireless tag cartridge in which a plurality of wireless tag circuit elements are connected in a strip shape and stored in a roll shape. Thus, an electromagnetic wave shield is formed on part or all of the housing of the RFID tag cartridge.

  The RFID tag cartridge according to claim 2 is the RFID tag cartridge according to claim 1, wherein the housing of the RFID tag cartridge is formed of a resin on which an electromagnetic wave shielding material is vapor-deposited, painted, or plated.

  The RFID tag cartridge according to claim 3 is the RFID tag cartridge according to claim 1, wherein the housing of the RFID tag cartridge is formed of an electromagnetic wave absorber.

  The RFID tag cartridge according to claim 4 is the RFID tag cartridge according to claim 3, wherein a housing of the RFID tag cartridge is formed of a resin containing a conductor.

  The RFID tag cartridge according to claim 5 is the RFID tag cartridge according to claim 3, wherein the housing of the RFID tag cartridge is formed of ferrite or a resistive film.

  7. The RFID tag cartridge according to claim 6, wherein a RFID tag storing portion for storing a base film in which a plurality of RFID tag circuit elements are connected in a belt shape in a roll shape, and a cover film bonded to the base film are rolled. In a wireless tag cartridge including a cover film storage portion that is stored in a shape, an electromagnetic wave shield is formed in the wireless tag storage portion.

  The wireless tag cartridge according to claim 7 is the wireless cartridge according to claim 1 or 6, wherein the housing of the wireless tag cartridge is formed of a resin having an electromagnetic wave shielding member attached to an inner surface of the housing.

  9. The wireless tag information communication device according to claim 8, wherein a plurality of wireless tag circuit elements are connected in a strip shape, a cartridge holder portion for detachably mounting a wireless tag cartridge stored in a roll shape, and a cartridge holder portion attached to the cartridge holder portion. A wireless tag information communication device for reading wireless tag information from a wireless tag circuit element drawn from a wireless tag cartridge that has been drawn or for writing wireless tag information to the wireless tag circuit element, An electromagnetic wave shield is formed in part or all.

  According to a ninth aspect of the present invention, there is provided the RFID tag information communication apparatus according to the eighth aspect, wherein the cartridge holder portion is formed of a resin in which an electromagnetic wave shielding member is deposited, painted, or plated.

  The RFID tag information communication apparatus according to claim 10 is the RFID tag information communication apparatus according to claim 8, wherein the cartridge holder portion is formed of a resin, and a part or all of the resin is shielded from electromagnetic waves. It is comprised so that it may surround with a member.

  An RFID tag information communication apparatus according to an eleventh aspect is the RFID tag information communication apparatus according to the eighth aspect, wherein the cartridge holder portion is formed of an electromagnetic wave shielding member.

  The wireless tag information communication device according to claim 12 is the wireless tag information communication device according to any one of claims 8 to 11, wherein a transmission antenna for transmitting predetermined information to the wireless tag and a directivity of the transmission antenna are set. An electromagnetic wave shielding member is provided inside the housing of the RFID tag information communication apparatus in the strong direction.

  A wireless tag information communication device according to a thirteenth aspect is the wireless tag information communication device according to any one of the tenth to twelfth aspects, wherein the electromagnetic wave shielding member is formed of ferrite or a resistance film.

  According to the RFID tag cartridge of the present invention, since the housing of the cartridge is shielded by electromagnetic waves, the RFID tag circuit element accommodated in the cartridge when an inquiry signal or write signal for tag information by radio is issued from the outside. In response to this, it is possible to prevent the RFID tag information from being returned, or erroneous RFID tag information to be written in response to the write signal. Accordingly, in the RFID tag information communication apparatus that stores the RFID tag cartridge and communicates RFID tag information with the RFID circuit element taken out from the cartridge, the RFID tag circuit element accommodated in the RFID tag cartridge is used. Unnecessary response signals are not generated, unnecessary writing is not performed on them, and communication can be reliably performed only with the extracted RFID tag circuit element.

  Further, since the electromagnetic wave shield is formed in the storage portion for storing the base film for storing the RFID circuit element, the electromagnetic wave shield can be formed at a low cost.

  Further, according to the wireless tag information communication device of the present invention, since the cartridge holder portion that stores the cartridge is shielded by electromagnetic waves, communication is not performed with the wireless tag circuit element stored in the cartridge. It is possible to prevent information from being erroneously written in the RFID tag circuit element accommodated in the terminal, or to transmit information erroneously from the RFID tag circuit element accommodated therein. Accordingly, the RFID tag information can be communicated only with the RFID circuit element taken out from the cartridge, and the communication with the RFID circuit element can be performed reliably.

  Further, if the cartridge holder portion of the RFID tag information communication apparatus is electromagnetically shielded, the cartridge need not be electromagnetically shielded, and the cost of the cartridge can be reduced.

  Also, since the inside of the casing in the direction in which the antenna part of the information writing unit of the RFID tag information communication device has a strong directivity is shielded by electromagnetic waves, the RFID tag circuit element placed near the outside of the RFID tag information communication device It is possible to prevent information from being erroneously written or receiving information transmitted by the RFID circuit element.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram illustrating a wireless tag generation system 10 to which the present invention is preferably applied. In the wireless tag generation system 10, the wireless tag information communication device 12 according to an embodiment of the present invention includes a route server 16, a terminal 18, a general-purpose computer 20, and a plurality of information servers via a wired or wireless communication line 14. 22 is connected.

  In the wireless tag generation system 10, information such as information to be written on the wireless tag label 24 and characters to be printed on the printing range of the wireless tag label 24 is input by the user and stored in the information server 22 at the terminal 18 or the general-purpose computer 20. The identification information is stored in the RFID circuit element 24a included in the RFID tag by the RFID tag information communication device 12 by designating the address of the article information being stored and the storage address of the corresponding information in the route server 16. In addition, article information and the like are written, and printing is performed in the printing range of the RFID label 24.

  FIG. 2 is a diagram for explaining the configuration of the RFID tag information communication apparatus 12. The RFID tag information communication apparatus 12 is for producing the RFID tag label 24 shown in FIGS. 4 and 5, and prints predetermined print characters and the like, as will be described later, and a desired writing ID, article information, etc. Is written in the IC circuit section 80 so that the RFID label 24 can be immediately created according to the user's request, and a cover film 86 to be described later for generating the tag tape 26 that is the material of the RFID label 24. A detachable cartridge 28 for accommodating a base tape 92 and the like in which a RFID circuit element 24a including an ink ribbon 98, an antenna section 64, and an IC circuit section 80 is disposed in a band at predetermined intervals, and a cartridge motor 30. A cartridge motor drive circuit 32 for controlling the feeding of the tag tape 26 from the cartridge 28, Via a print drive circuit 36 for controlling the drive of the thermal head 34 for printing on the tag tape 26, a feed roller 38 for feeding the tag tape 26 in the direction indicated by the arrow, and a feed roller motor 40. The feed roller drive circuit 42 for controlling the drive of the feed roller 38, the conveyance guide 46 for guiding the tag tape 26 from the cartridge 28 to the carry-out port 44, and the tag tape 26 is predetermined according to the drive of the solenoid 48. A cutter 50 that is cut to the length of the RFID tag 24 and is divided into individual RFID labels 24, a sensor 52 that detects the presence or absence of the tag tape 26 at the carry-out port 44, and the RFID circuit element 24a communicate with each other. Information is written to the RFID tag circuit element 24a via the device-side antenna unit 54 and the device-side antenna unit 54 High-frequency circuit 56, a signal processing circuit 58 for processing the signal read from the RFID circuit element 24a and reading information, the cartridge motor drive circuit 32, the print drive circuit 36, and the feed roller drive circuit. 42, a solenoid 48, a high frequency circuit 56, a signal processing circuit 58, and the like, and a control circuit 60 for controlling the wireless tag information communication device 12 is provided. The control circuit 60 is connected to the communication line 14 by an input / output interface 62. The cartridge holder portion that houses the cartridge 28 will be described later.

  FIG. 3 is a diagram for explaining the configuration of the RFID circuit element 24a. As shown in FIG. 3, the RFID circuit element 24a includes an antenna unit 64 for transmitting / receiving signals to / from the RFID tag information communication device 12 by reflection communication using a high frequency such as UHF, and the antenna unit 64. A rectifier 66 that rectifies the carrier wave received by the power supply unit 68, a power supply unit 68 for storing energy of the carrier wave rectified by the rectifier 66, and a clock signal extracted from the carrier wave received by the antenna unit 64. A clock extraction unit 70 to be supplied to the control unit 76; a memory unit 72 functioning as an information storage unit capable of storing a predetermined information signal; a modem unit 74 connected to the antenna unit 64; the rectifying unit 66; And a control unit 76 for controlling the operation of the RFID circuit element 24a through the extraction unit 70, the modulation / demodulation unit 74, and the like. . The control unit 76 performs control to store the predetermined information in the memory unit 72 by communicating with the RFID tag information communication device 12, and the carrier wave received by the antenna unit 64 in the modulation / demodulation unit 74. After performing modulation based on the information signal stored in the unit 72, basic control such as control of reflecting back from the antenna unit 64 as a reflected wave is executed. The rectifying unit 66, the power supply unit 68, the clock extracting unit 70, the modem unit 74, the control unit 76, and the memory unit 72 are formed in an IC circuit unit 80 which is one integrated circuit.

  4A and 4B are views for explaining the appearance of the RFID label 24, wherein FIG. 4A is a plan view and FIG. 4B is a bottom view. 5 is a cross-sectional view taken along line VV in FIG. As shown in FIG. 4A, on one surface (front surface) of the RFID label 24, for example, a print 78 such as “RF-ID” that allows the user to recognize the contents of the RFID label 24 is a cover film. 86. As shown in FIG. 4B, the back surface of the RFID label 24 is not printed with the release paper 90 adhered thereto.

  As shown in FIG. 5, the IC circuit unit 80 including the rectification unit 66, the power supply unit 68, the clock extraction unit 70, the memory unit 72, the modulation / demodulation unit 74, the control unit 76, and the like is made of PET (polyethylene terephthalate) or the like. The antenna portion 64 is formed on the surface of the base film 82 by printing or the like. A transparent cover film 86 is bonded to the front side of the base film 82 via an adhesive layer 84, and a release paper 90 is bonded to the back side of the base film 82 via an adhesive layer 88. The print 78 is printed on the back surface of the cover film 86, that is, the surface on the adhesive layer 84 side. Further, when the RFID label 24 is attached to a predetermined product or the like, the release paper 90 is peeled off and adhered by the adhesive layer 88.

  FIG. 6 is a diagram for explaining in detail the configuration of the cartridge 28 of the present invention. As shown in an enlarged view, a part of the cartridge 28 is wound with a band-shaped base tape 92 in which the RFID tag circuit elements 24a including the antenna part 64 and the IC circuit part 80 are continuously arranged. One roll 94 (wireless tag storage portion), a second roll 96 (cover film storage portion) around which the cover film 86 having the same width as the base tape 92 is wound, and an ink ribbon 98 are wound. The ink ribbon roll 100, the winding roller 102 for winding the ink ribbon 98, the base tape 92 and the cover film 86 are pressed and bonded together to feed the tape in the direction indicated by the arrow. The pressure roller 104 is provided so as to be able to rotate about each axis. Although the first roll 94 and the second roll 96 are drawn concentrically in the drawing, they are actually spirally wound around a core. The ink ribbon roll 100 and the take-up roller 102 are disposed on the back side of the cover film 86, that is, the side to be bonded to the base tape 92, and the ink ribbon 98 is connected to the RFID tag information communication device 12. By being pressed by the thermal head 34 provided on the main body, the thermal head 34 is brought into contact with the back surface of the cover film 86.

  In forming the tag tape 26, the winding roller 102 and the pressure roller 104 are rotated in synchronization with each other in the directions indicated by the arrows by driving the cartridge motor 30. At this time, when a plurality of heating elements provided in the thermal head 34 are energized by the print drive circuit 36, a predetermined amount is applied to the back surface of the cover film 86, that is, the surface to be bonded to the base tape 92. Characters, symbols, bar codes, and the like are printed, and after the printing is performed, the tag tape 26 is formed by being bonded to the base tape 92 by the pressure roller 104. Further, the tag tape 26 is transferred to the guide 46, and when passing through the guide 46, an inquiry signal is transmitted to the RFID circuit element 24a via the device-side antenna unit 54, and the RFID circuit element 24a is A response radio wave is transmitted. The control circuit 60 and the signal processing circuit 58 extract the ID of the RFID circuit element 24a included in the returned radio wave, and transmit a write command including the ID and information to be written. In this way, after predetermined information is written in the IC circuit portion 80 of the RFID circuit element 24a, it is cut into a predetermined length by the cutter 50 and divided into individual RFID labels 24.

  Predetermined identification information is stored in advance in each RFID circuit element 24a in accordance with the order in which the cartridge is accommodated in the cartridge 28 (in other words, the order in which the cartridge is taken out). Normally, different information can be written into the RFID circuit element 24a taken out from the cartridge 28, and the information is not written into the RFID circuit element 24a housed in the cartridge 28. It is necessary to do so. Therefore, the RFID tag cartridge 28 of the present invention has an electromagnetic wave shield on the housing 29 thereof.

  As a method for applying electromagnetic wave shielding, the housing 29 itself of the RFID tag cartridge 28 is formed of an electromagnetic wave shielding member, and the housing 29 itself of the RFID tag cartridge is formed of a resin having no electromagnetic wave shielding effect. There is a method of attaching a shield member.

  Electromagnetic wave shielding members include resistive radio wave absorbers (resistance coatings, resistance fibers, conductive paints, etc.), dielectric radio wave absorbers (rubber carbon type, FRP type, etc.) and combined radio wave absorbers (ferrite type and carbon type, etc.) )It has been known. Since these have different characteristics depending on the band of radio waves, a multilayer type is used when an electromagnetic wave shield is required in a wide band.

  For millimeter wave band, epoxy modified urethane rubber mixed with carbon particles, epoxy resin mixed with titanium oxide and carbon particles as coating material, and ITO (indium tin oxide) under the protective film as a resistance film absorber ) And a multilayered structure made of aluminum foil in the lower layer is used.

  In the first embodiment, the housing 29 of the cartridge 28 is formed of an electromagnetic wave shielding member as means for applying an electromagnetic wave shield. For example, the housing 29 is made of a resin containing a conductor such as carbon or a conductor (aluminum or the like).

  In the second embodiment, the housing 29 is made of a normal resin that does not shield electromagnetic waves, and an electromagnetic wave shielding member is attached to the inside of the housing 29. FIG. 6 is a view for explaining the second embodiment and shows a state in which the electromagnetic wave shielding member 31 is attached to the inner side of the housing 29 of the cartridge 28. The electromagnetic wave shielding member is welded to the entire inner surface of the housing 29. Attached by the post 29a.

  As an alternative method, an electromagnetic wave shielding member can be deposited by depositing an electromagnetic wave shielding member on the housing 29 of the cartridge 28, applying an electromagnetic wave shielding member, or plating.

  The housing 29 is connected to a conduction terminal 31a from an electromagnetic wave shielding member 31. By attaching the cartridge 28 to the wireless tag information communication apparatus 12, conduction is obtained by contact with a conduction terminal 56a on the apparatus side described later. The wireless tag information communication device 12 is configured to have the same potential as the ground potential. For this reason, the electromagnetic wave shielding member 31 is always at ground potential, and plays the role of electromagnetic wave shielding without receiving and re-emitting electromagnetic waves.

  FIG. 7 is a view for explaining the third embodiment, and is a first roll wound with a belt-like base tape 92 in which IC circuit portions 80 and the like housed in the cartridge 28 are continuously arranged. It is a figure which shows a mode that only the part of 94 is enclosed with an electromagnetic wave shielding member. As shown in the figure, the electromagnetic wave shielding member 33 is welded to the welding post 29a so that the first roll 94 in the cartridge 28 and the base tape 92 drawn upward are surrounded by the electromagnetic wave shielding member 33 surrounding the pressure roller 104. Is pasted. Similarly to the second embodiment, a conduction terminal 33a is connected to the electromagnetic wave shielding member 33, and by attaching the cartridge 28 to the RFID tag information communication apparatus 12, it conducts by contact with a conduction terminal 56a on the apparatus side described later. And is configured to have the same potential as the ground potential of the wireless tag information communication device 12.

In the first and second embodiments, since the electromagnetic wave shield is applied to the housing 29 itself of the cartridge 28 or to the entire surface of the housing, the electromagnetic wave can be reliably shielded.
On the other hand, in the third embodiment, the electromagnetic wave shield is applied only to the portion in which the RFID circuit element 24a is accommodated, and the electromagnetic wave can be shielded efficiently at low cost.

  In the first to third embodiments, the case where the cartridge 28 is shielded against electromagnetic waves has been described. However, the RFID tag that houses the cartridge 28 and communicates information with the RFID circuit element 24a taken out from the cartridge 28 is used. Another embodiment in which an electromagnetic wave shield is provided on the device side of the information communication device 12 will be described below.

  FIG. 8 is a view for explaining a fourth embodiment in which an electromagnetic wave shield is provided on the cartridge holder portion 112, and as shown in the XX sectional view, the entire surface of the cartridge holder portion 112 formed of resin. The electromagnetic wave shielding member 114 is pasted on the welding post. This figure shows a state in which the cartridge 28 is not attached. The cartridge holder portion 112 is provided with a cartridge holder lid 13 that opens and closes when the cartridge 28 is mounted or taken out. The electromagnetic shield member 116 is adhered to the entire surface of the cartridge holder lid 13 with an adhesive. These electromagnetic wave shielding members 114 and 116 are electrically connected so as to have the same potential as the ground potential.

  The cartridge holder portion 112 and the cartridge holder lid 13 itself may be formed of an electromagnetic wave shielding member. Alternatively, the cartridge holder portion 112 and the cartridge holder lid 13 may be formed of a normal resin that does not have the effect of electromagnetic wave shielding, and an electromagnetic wave shielding member may be deposited, coated, or plated on the resin.

  Further, as a fifth embodiment, inside the casing of the RFID tag information communication apparatus 12, between the conveyance guide 46 or the RFID circuit element 24a for guiding the tag tape 26 from the cartridge 28 to the carry-out port 44. Electromagnetic wave shielding members 108 and 110 are provided on the upper side and the lower side of the apparatus-side antenna unit 54 for performing communication. This state is shown in the center part of FIG. 8 and the YY sectional view. The maintenance cover 122 is a removable cover for repairing when the tag tape 26 is clogged with the conveyance guide 46 or the like, and its four corners are screwed. In this figure, a part of the maintenance cover 122 is omitted and the inside is displayed. Inside, an electromagnetic wave shielding member 108 is attached to the inner upper surface of the inverted U-shaped portion 106 made of resin, and an electromagnetic wave shielding member 110 is attached to the inner lower surface. These electromagnetic wave shielding members are also conductive so as to have the same potential as the ground potential. The maintenance cover 122 itself is also formed of an aluminum plate or the like as an electromagnetic wave shielding member, and is electrically connected so as to have the same potential as the ground potential.

  The direction of the electromagnetic wave is strong in the vertical direction of the device-side antenna unit 54, and the electromagnetic wave from the device-side antenna unit 54 is provided by arranging the electromagnetic shielding members 108 and 110 on the upper side and the lower side of the device-side antenna unit 54. Therefore, when the RFID circuit element 24a is placed outside the housing, communication with the RFID circuit element 24a can be prevented.

  FIG. 9 is a diagram for explaining the sixth embodiment, in which information is written to the cartridge holder portion 124 for storing the cartridge 28 inside the RFID tag information communication apparatus 12 and the RFID tag taken out from the cartridge 28. The positional relationship with the apparatus side antenna part 54 which has a writing part to insert is represented. The cartridge holder portion 124 is formed of a resin, and a portion near the device-side antenna portion 54 is covered with an electromagnetic wave shielding member 126 and a resin lid 128 that opens and closes for maintenance of the thermal head 34, the pressure roller 104, and the like. An electromagnetic wave shielding member 132 is also attached to a portion near the device-side antenna portion 54 by a welding post 128a.

  The lid 128 is configured to be opened and closed about a rotation shaft 130. With the above configuration, the radio wave radiated from the device-side antenna unit 54 has a strong directivity. Therefore, by providing the electromagnetic shield members 126 and 132, communication with the RFID circuit element 24a accommodated in the cartridge 28 can be performed. Can be blocked.

  In the fourth to sixth embodiments, since the electromagnetic wave shield is applied to the cartridge holder portions 112 and 124 in the wireless tag information communication device 12, it is not necessary to apply an electromagnetic shield to the cartridge 28. It can be supplied at low cost.

  FIG. 10 is a diagram illustrating the configuration of the control circuit 60 in each of the above embodiments. As shown in FIG. 10, the control circuit 60 comprises a central processing unit CPU 140, a ROM (Read Only Memory) 142, a RAM (Random Access Memory) 144, etc., and uses the temporary storage function of the RAM 144. On the other hand, it is a so-called microcomputer that performs signal processing in accordance with a program stored in the ROM 142 in advance. An I / O 62 is an input / output circuit, which receives a detection signal from the reading sensor 33 and sensor 52, processes a transmission / reception signal to / from the RFID circuit element 24a, and reads out information. Input / output information, and output signals for driving the cartridge motor drive circuit 32, the print drive circuit 36, the feed roller drive circuit 42, the solenoid 48, and the like. The control circuit 60 is connected to the communication line 14 via the input / output interface 62, and communicates information with the route server 16, the terminal 18, the general-purpose computer 20, the information server 22, and the like. Is possible.

  FIG. 11 is a flowchart of a program for writing information to the RFID circuit element 24a executed by the CPU 140 of the RFID tag information communication apparatus 12.

  First, the wireless tag information communication device 12 transmits a radio wave inquiring about ID (identification information) to the wireless tag circuit element 24a (S11). This radio wave reaches the RFID circuit element 24a taken out from the cartridge 28. However, since the cartridge 28 is shielded by electromagnetic waves, it does not reach the RFID circuit element 24a accommodated in the cartridge. Only the RFID circuit element 24a taken out from the cartridge 28 responds. A response from the RFID circuit element 24a to the inquiry is received (S12).

  The ID included in the response from the wireless tag circuit element 24a is extracted, the extracted ID is included in the write command, and information to be written in the wireless tag circuit element 24a is transmitted (S13), and the process is terminated.

  On the other hand, processing in the RFID circuit element 24a that receives and processes the write information will be described with reference to the flowchart of FIG.

  First, when a radio wave for inquiring about an ID is received (S21), the received radio wave is converted into a digital signal (S22), and an ID is extracted from the digital signal (S23). Next, the ID of the RFID circuit element 24a itself is extracted from the memory unit 72 (S24), and it is determined whether or not the received ID is the same as its own ID (S25).

  If these IDs are the same (S25: Yes), an instruction command is extracted from the received digital signal (S26), and it is determined whether or not the instruction command is a write instruction (S27). If the command is a write command (S27: Yes), write information is extracted from the digital signal (S28), and the write information is written in the memory unit 72 (S29), and the process is terminated.

  On the other hand, if it is determined in S27 whether or not it is a write command (S27: No), processing is performed according to the command (S30), and this series of processing is terminated. If it is determined in S25 that the received ID is different from the ID of the RFID circuit element itself, the process is terminated.

  The present invention has been described based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be easily made without departing from the spirit of the present invention. It can be guessed.

  For example, in the above-described embodiment, the RFID circuit element is included in a tape wound in a roll shape at a predetermined interval. However, the present invention is not limited to this. For example, a sheet-shaped strap is included in a cassette. You may apply this invention to what was piled up.

It is a figure explaining the radio | wireless tag production | generation system to which this invention is applied suitably. It is a figure for demonstrating the structure and operation | movement of a wireless tag information communication apparatus. It is a block diagram which shows the electric constitution of a wireless tag circuit element. It is a figure which shows the external appearance of a wireless tag label, (a) is a top view, (b) is a bottom view. It is sectional drawing of a wireless tag label. It is a figure explaining the structure of a cartridge. It is a figure explaining the structure of another cartridge. It is a figure which shows the structure of the wireless tag information communication apparatus of this invention. It is a figure which shows a cartridge holder part. It is a circuit block diagram explaining the structure of a control circuit. It is a flowchart explaining the information writing operation to the RFID circuit element by the RFID tag information communication apparatus. It is a flowchart explaining the information exchange operation | movement with the wireless tag communication apparatus by a wireless tag circuit element.

Explanation of symbols

12: RFID tag information communication device 24: RFID circuit element 28: Cartridge 29: Cartridge housing 31, 33: Electromagnetic shield member 33: Cartridge holder 34: Thermal head 54: Device side antenna 64: Antenna 74: Memory Part 80: IC circuit part 108, 110: electromagnetic wave shielding member

Claims (13)

A box-shaped RFID tag cartridge for connecting a plurality of RFID circuit elements in a strip shape and storing them in a roll shape,
An RFID tag cartridge, wherein an electromagnetic wave shield is formed on a part or all of a housing of the RFID tag cartridge.   2. The wireless tag cartridge according to claim 1, wherein the housing of the wireless tag cartridge is formed of a resin in which an electromagnetic wave shielding material is deposited, painted, or plated.   2. The wireless tag cartridge according to claim 1, wherein the housing of the wireless tag cartridge is formed of an electromagnetic wave absorber.   4. The RFID tag cartridge according to claim 3, wherein the housing of the RFID tag cartridge is formed of a resin containing a conductor.   4. The RFID tag cartridge according to claim 3, wherein a housing of the RFID tag cartridge is formed of ferrite or a resistance film. A wireless tag storage portion for storing a base film in which a plurality of RFID tag circuit elements are connected in a strip shape in a roll shape, and a cover film storage portion for storing a cover film bonded to the base film in a roll shape In a wireless tag cartridge comprising:
An RFID tag cartridge, wherein an electromagnetic wave shield is formed in the RFID tag storage portion.   The RFID tag cartridge according to claim 1 or 6, wherein the housing of the RFID tag cartridge is formed of a resin having an electromagnetic wave shielding member attached to an inner surface of the housing. A cartridge holder portion for connecting a plurality of RFID tag circuit elements in a strip shape and detachably attaching a RFID tag cartridge to be stored in a roll shape, and a RFID circuit drawn from the RFID tag cartridge attached to the cartridge holder portion A wireless tag information communication device for reading wireless tag information from an element or for writing wireless tag information to the wireless tag circuit element,
An RFID tag information communication apparatus, wherein an electromagnetic wave shield is formed on a part or all of the cartridge holder portion.   9. The wireless tag information communication apparatus according to claim 8, wherein the cartridge holder portion is formed of a resin in which an electromagnetic wave shielding member is deposited, painted, or plated.   9. The RFID tag information communication according to claim 8, wherein the cartridge holder portion is formed of a resin, and a part or all of the resin is surrounded by an electromagnetic wave shielding member. apparatus.   9. The wireless tag information communication device according to claim 8, wherein the cartridge holder portion is formed of an electromagnetic wave shielding member. A transmission antenna for transmitting predetermined information to the wireless tag;
12. The wireless tag information communication device according to claim 8, further comprising an electromagnetic wave shielding member inside a housing of the wireless tag information writing device in a direction in which the directivity of the transmission antenna is strong. .   The wireless tag information communication device according to claim 10, wherein the electromagnetic wave shielding member is formed of ferrite or a resistance film.

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