JP2008015959A - Rfid system, tag, and method for managing document holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an RFID system capable of easily and surely reading information on a tag stuck to an article such as a document holder which is thin and apt to deform, and to provide the tag and a method for managing the document holder. <P>SOLUTION: The RFID system includes: the tag 20 stuck to the vicinity of a side of the ejection side of the document holder such as a clear holder 41; and a portable reader or reader/writer which reads information stored in the tag 20 by being brought close from the take-out side of document holder. In the RFID system, a positioning mark 25 indicating the position for approximately and equally dividing the tag 20 is formed on the visualizing surface of the tag 20 to be stuck to the document holder, and the sticking positions of another tag 20, which is arranged with the document holder between, are specified based on the positioning mark 25. Thus, the tags 20 can be stuck to the document holder by shifting them at approximately fixed interval, thereby suppressing mutual interference between the tags 20 to easily and surely read the information on the tags 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an RFID (Radio Frequency Identification) system, a tag, and a method of using the RFID system, and more particularly, to an RFID system and a tag used for managing a document holder for storing documents, and a document holder managing method using the RFID system. About.

  In recent years, RFID systems that perform data communication between a tag including an IC chip and a reader / writer (or a reader) have become widespread. Since this RFID system performs data communication using an antenna provided in each of the tag and the reader / writer, communication is possible even if the tag is separated from the reader / writer by several centimeters to several tens of centimeters. Due to its strength against static electricity, it has come to be used in various fields such as article management, logistics management, and entrance / exit management.

  For example, with regard to book management, conventionally, optical inventory recognition such as barcodes has been used to carry out inventory, search, and incorrect storage indications. In this method, each book is taken out from the storage location one by one and data is read. It took a huge amount of time and man-hours, but by attaching tags to books using the RFID system described above, there is no need to take out each book one by one and read the data. Can manage books easily.

  The basic circuit element of this tag is an IC chip for storing information with an antenna and a capacitor for constituting a resonance circuit, and an inductance L of an antenna coil constituting the resonance circuit and a capacitance C of the capacitor. The data is communicated by adjusting the resonance frequency f set in step 1 to the desired frequency band (for example, 13.56 MHz). However, when the books with tags attached are stacked, resonance occurs due to the mutual inductance effect of the coils. There is a problem in that the frequency shifts and the reading success rate decreases.

  In order to solve this problem, the following Patent Document 1 discloses a hand-held wireless IC tag reading device including an antenna capable of wireless communication with an IC tag attached to a book or the like, and a holding portion held by a holder. The antenna exterior is formed in a thin flat body that can be inserted between adjacent articles, and the antenna exterior is wireless IC tag so that both side surfaces of the thin flat body are open. A configuration that protrudes from the reader main body is disclosed.

Japanese Patent No. 3519562 (page 5-15, Fig. 1)

  By using the above-described wireless IC tag reader (reader / writer), even when books with tags attached thereto are arranged side by side, the antenna exterior protruding from the main body is inserted between adjacent books so that data can be stored. Although reading is possible, this method requires the use of a dedicated reader / writer that protrudes from the main body of the antenna, so it is not very versatile. Since it must be repeated, there is a problem that the management becomes complicated and the operability is poor when there are a large number of articles to be managed.

  Also, if the article to be managed is a book, the book has a certain thickness, and the back is provided with a spine cover, so you can easily find the place to insert the antenna exterior, When the article to be managed is a thin article such as a document holder, it is not easy to find a place to insert the antenna exterior, and there is a problem that management takes time.

  In addition, when the article to be managed is a book, the front and back sides of the book are covered with a thick cover and back cover and have a certain degree of rigidity, so the antenna exterior can be inserted, but the article to be managed However, in the case of an easily deformable article such as a document holder, it is difficult to insert the antenna exterior, and if the antenna exterior is forcibly inserted, the document holder to be managed and the documents stored in the document holder will be damaged. There is a risk.

  The present invention has been made in view of the above-mentioned problems, and its main purpose is an RFID that can easily and reliably read information on a tag attached to a thin and easily deformable article such as a document holder. It is an object to provide a system, a tag, and a document holder management method.

  In order to achieve the above object, the present invention is a tag that includes an antenna and an IC and is affixed in the vicinity of a side on the take-out side of a substantially transparent document holder for storing a document, the viewing surface of each of the tags Further, a positioning mark for shifting and pasting other tags arranged with the document holder interposed therebetween is formed.

  In addition, the present invention is a tag including an antenna and an IC, and is affixed so that a part thereof protrudes from a side on the take-out side of a document holder for storing a document, and the part of the viewing surface of each of the tags A positioning mark for shifting and pasting another tag arranged with the document holder in between is formed in the region including the part of the surface of the tag to be pasted on the document holder It can be set as the structure by which the adhesive material is formed only in the area | region except for.

  In the present invention, the positioning mark may be formed by printing on a protective film covering the antenna, or may be formed of the same member as the antenna on the same layer as the antenna.

  Moreover, in this invention, the said positioning mark can be set as the structure currently formed in the position which divides | segments the said tag substantially equally with respect to the direction of the said edge | side.

  The present invention also includes a plurality of substantially transparent document holders for storing documents, an antenna and an IC, a tag attached in the vicinity of the side on the take-out side of the document holder, and electromagnetic induction or electromagnetic coupling. An RFID system comprising at least a reader or a reader / writer that communicates with the tag, wherein a predetermined positioning mark is formed on the viewing surface of each tag, and the tag of any one of the document holders, Another tag of another document holder that is overlaid on the document holder is attached so as to be shifted from each other based on the positioning mark.

  The present invention also includes a plurality of document holders for storing documents, an antenna and an IC, a tag attached so that a part of the document holder protrudes from the side on the take-out side, and electromagnetic induction or electromagnetic coupling. An RFID system including at least a reader or a reader / writer that communicates with the tag using a predetermined positioning mark is formed in an area including the part of the viewing surface of each tag, The tag of the other document holder and the other tag of another document holder that is superimposed on the document holder are attached so as to be shifted from each other based on the positioning mark.

  The method of the present invention uses a plurality of document holders for storing documents, an antenna and an IC, a tag attached in the vicinity of the side on the take-out side of the document holder, and electromagnetic induction or electromagnetic coupling. A document holder management method using an RFID system including at least a reader or a reader / writer that communicates with the tag, wherein a tag of any one of the document holders and another document holder to be superimposed on the document holder Another tag is pasted with the position shifted in the direction of the side.

  The method of the present invention includes a plurality of substantially transparent document holders for storing documents, an antenna and an IC, a tag attached in the vicinity of the side on the take-out side of the document holder, and electromagnetic induction or electromagnetic coupling. A document holder management method using an RFID system that includes at least a reader or a reader / writer that communicates with the tag using a tag, wherein a predetermined positioning mark is formed on the viewing surface of each tag, The positioning mark is visually recognized through another document holder superimposed on the viewing surface side of any document holder tag, and another tag is attached to the other document holder while being shifted based on the positioning mark. is there.

  The method of the present invention includes a plurality of document holders for storing documents, an antenna, and an IC, a tag attached so as to partially protrude from a side on the take-out side of the document holder, and electromagnetic induction or electromagnetic A method for managing a document holder using an RFID system including at least a reader or a reader / writer that communicates with the tag using coupling, in an area including the part of the viewing surface of each tag, A predetermined positioning mark is formed, the positioning mark protruding from the other document holder superimposed on the viewing surface side of the tag of any document holder is visually recognized, and on the other document holder based on the positioning mark Other tags are pasted and shifted.

  The method of the present invention uses a plurality of document holders for storing documents, an antenna and an IC, a tag attached in the vicinity of the side on the take-out side of the document holder, and electromagnetic induction or electromagnetic coupling. A document holder management method using an RFID system including at least a reader or a reader / writer that communicates with the tag, wherein a predetermined positioning mark is formed on each of the document holders, and any one of the document holders And other tags of other document holders to be superimposed on the document holder are pasted while being shifted from each other based on the positioning marks.

  The method of the present invention uses a plurality of document holders for storing documents, an antenna and an IC, a tag attached in the vicinity of the side on the take-out side of the document holder, and electromagnetic induction or electromagnetic coupling. A document holder management method using an RFID system including at least a reader or a reader / writer that communicates with the tag, and a sheet on which a predetermined positioning mark is previously formed is pasted on each document holder The tag of any one of the document holders and the other tag of another document holder to be superimposed on the document holder are pasted while being shifted from each other based on the positioning marks formed on the sheet.

  In this way, by shifting the tag to the document holder and pasting it, mutual interference between the tags can be suppressed, and by sticking the tag based on the positioning mark, the amount of tag displacement can be made substantially constant. Therefore, the mutual interference between the tags can be more reliably suppressed, and the information on the tag attached to each document holder can be read easily and reliably.

  According to the RFID system, the tag, and the document holder management method of the present invention, it is possible to easily and reliably read the information of the tag attached to each document holder.

  The reason is that mutual interference between tags can be suppressed by shifting the tag to a document holder such as a clear holder. In addition, a positioning mark indicating a position where the tag is divided approximately equally is formed on the viewing surface of the tag to be attached to the document holder, a positioning mark indicating a tag attaching position is formed on the document holder, By forming a positioning mark that indicates the tag attachment position on the sheet to be attached, and attaching the tag based on the positioning mark, the amount of tag shift can be made substantially constant, thereby reducing mutual interference between tags. It is because it can suppress reliably.

  In a preferred embodiment of the present invention, a tag that is attached in the vicinity of a side on the take-out side of a document holder such as a clear holder, and a portable type that reads from the information stored in the tag close to the take-out side of the document holder In a RFID system including a reader or a reader / writer, a positioning mark indicating a position at which the tag is substantially equally divided is formed on the viewing surface of the tag to be attached to the document holder, or the tag attachment position is set on the document holder. A positioning mark indicating the tag attaching position is formed on a sheet to be attached to the document holder, and the tag is attached to each document holder based on the positioning mark. As a result, the tags can be attached with a substantially constant shift amount, so that mutual interference between the tags can be suppressed, and the information on the tags attached to the respective document holders can be read easily and reliably. be able to.

  In order to describe the above-described embodiment of the present invention in more detail, an RFID system, a tag, and a document holder management method according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram schematically illustrating the overall configuration of the RFID system according to the present embodiment, and FIG. 2 is a diagram illustrating a general configuration of the RFID system. 3 is a plan view and a cross-sectional view showing the configuration of the tag of this embodiment, FIG. 4 is a plan view showing the procedure for attaching the tag to the document holder, and FIG. It is a figure which shows the state which accumulated the document holder of. FIG. 6 is a plan view showing another procedure for attaching the tag to the document holder, and FIGS. 7 to 9 are diagrams showing another configuration example of the tag of this embodiment. FIG. 10 is a diagram showing the configuration of the document holder of this embodiment and the procedure for attaching a tag to the document holder. FIG. 11 shows the configuration of the sheet to be attached to the document holder of this embodiment and the sheet. It is a figure which shows the procedure which affixes a tag on the affixed document holder. FIGS. 12 to 14 are views showing a state in which the clear holder is housed in the drawer, a specific configuration of the tag, and a state in which the clear holder is arranged.

  As shown in FIG. 1, the RFID system 10 of the present embodiment is for storing a document formed by bonding a rectangular member or the like with one side, two adjacent sides, or three adjacent sides open. A plurality of document holders 40, a tag 20 attached in the vicinity of the side of each document holder 40 on the take-out side (the upper side in the figure), and a position close to the take-out side of the document holder 40, using electromagnetic induction or electromagnetic coupling And a portable reader or reader / writer (hereinafter referred to as reader / writer 30) that communicates with the tag 20 attached to each document holder 40, and the plurality of document holders 40 are arranged in a certain direction. And stored in a storage container 50 such as a desk drawer or cabinet.

  2, the reader / writer 30 includes an antenna unit 31 that performs data communication with the tag 20, a communication circuit unit 33 that converts transmission / reception signals, and an arithmetic processing unit that decodes transmission / reception signals. The antenna unit 31 and the control unit 32 are connected to each other via a cord or by radio or infrared rays. The tag 20 includes a tag antenna 21 and a capacitor 22 that constitute a resonance circuit 23, and an IC 24 that stores information regarding each document holder 40 and documents stored in the document holder 40. It is driven using the power supplied from the writer 30. Note that the capacitor 22 can be omitted when the IC 24 has a capacitance.

  Since data communication between the reader / writer 30 and the tag 20 in the RFID system 10 is performed at a desired communication frequency (for example, 13.56 MHz), the resonance frequency of the resonance circuit 23 of the tag 20 is accurately set to the communication frequency. Must be set to Here, when the tag 20 is affixed to an article managed in a single state, the tag antenna 21 and the capacitor 22 are designed so as to achieve the desired communication frequency, and the trimming capacitor is cut after manufacture. Thus, the resonance frequency can be accurately adjusted.

  However, when the tags 20 are affixed to an article to be managed, the tags 20 are arranged close to each other. As a result, the resonance frequency shifts and the information on the tag 20 cannot be read reliably by the reader / writer 30.

  Therefore, in the present embodiment, even when the document holder 40 to which the tag 20 is attached is arranged, the magnetic flux of each tag 20 is shown in FIG. As described above, the position of the tag 20 is shifted and pasted to the document holder 40.

  In FIG. 1, the positions of the tags 20 are shifted with respect to the tags 20 attached to the document holders 40 on both sides thereof. However, a plurality of document holders 40 (for example, 15 document holders 40) are arranged. As a set, the tags 20 to be attached to the document holders 40 of the respective sets may be shifted with respect to the tags 20 to be attached to the document holders 40 of the sets arranged on both sides thereof. The quantity can be appropriately set according to the size of the tag antenna 21 of the tag 20, the size of the antenna unit 31 of the reader / writer 30, the reading success rate required for the RFID system 10, and the like. Further, in FIG. 1, the document holders 40 are separated from each other in order to make the tag 20 attachment position easy to see, but the document holders 40 may be arranged without any gaps.

  Here, when the tag 20 is attached to the document holder 40 while being shifted, it is considered that the success rate of reading also changes when the amount of displacement changes, so the amount of displacement needs to be substantially constant. However, the conventional tag does not have a mark for pasting the tag 20, and when the tag 20 is pasted to each document holder 40, the operator measures the amount of shift using a ruler or the like and pastes the tag 20. Since the position had to be determined, there was a problem that workability was poor, and the shift amount fluctuated due to a measurement error.

  On the other hand, a holder made of a substantially transparent material such as plastic (hereinafter referred to as a clear holder) is known as the document holder 40 so that a document to be stored can be identified. In the case of pasting, even if the next clear holder is stacked on the clear holder to which the tag 20 is pasted, the tag 20 pasted to the lower clear holder can be visually recognized.

  Therefore, in the present embodiment, by using the characteristics of the clear holder, a mark (hereinafter referred to as a tag position) of the tag 20 is attached so that the tag 20 can be attached to the clear holder having substantially the same shape with a substantially constant shift amount. , Called a positioning mark).

  Specifically, as shown in FIG. 3A and FIG. 3B showing the XX cross section, the tag 20 is made of a plastic base material such as FRP (fiber reinforced plastic) or PET (polyethylene terephthalate). 26. Etching the conductor thin film on the front or back surface of the tag 26 to form a tag antenna 21 or capacitor 22 (here, a comb-like electrode is formed on one surface so that the resonance frequency can be adjusted, and a counter electrode is formed on the other surface. Although the capacitor 22 is formed in any form, the IC 24 is connected to the contact points of the tag antenna 21 and the capacitor 22, and a protective film 27 such as a plastic film is formed so as to cover them. An adhesive layer 28 is formed on the (attachment surface) side, and further, the tag 20 is arranged at a predetermined position (preferably the tag 20 on the side opposite to the attachment surface) side. In a position of dividing the almost equal intervals, wherein the position) is divided into 3 equal parts, positioning marks 25 are formed.

  Then, as shown in FIG. 4A, after the lower tag 20 is attached to the vicinity of the side on the take-out side of the first clear holder 41 (here, the upper left end), FIG. ), The second clear holder 41 is overlaid, and as shown in FIG. 4C, two positioning marks 25 (here, the right positioning marks 25) formed on the lower tag 20 are stacked. The upper tag 20 is attached so that the end (here, the left end) coincides with the positioning mark 25 with reference to the positioning mark 25. The clear holder 41 is overlapped, the tag 20 is pasted at the same position as the lower tag 20, and the same is repeated thereafter. The state in which the clear holders 41 in which the tags 20 are alternately shifted in this way are arranged is viewed from above as shown in FIG. 5, and the tags 20 are arranged in a state of being shifted by a substantially constant shift amount.

  In the above description, the attaching position of the tag 20 is changed for each clear holder 41. However, a plurality of clear holders 41 may be set, and the attaching position of the tag 20 may be shifted for each set. Moreover, in the above, after the attachment position of the upper tag 20 is shifted based on the positioning mark 25 of the lower tag 20, the next tag 20 is returned to the original position. The pasting position may be shifted in the same direction. In FIG. 4, the right positioning mark 25 of the lower tag 20 and the end of the upper tag 20 are aligned to shift the tag 20 by 2/3 with respect to the long side. When shifting by 1/3 with respect to the long side, the left positioning mark 25 of the lower tag 20 and the end of the upper tag 20 may be aligned as shown in FIG. 4 and 6, the positioning mark 25 of the lower tag 20 and the end of the upper tag 20 are aligned, but the base material 26, the protective film 27, and the adhesive layer 28 that constitute the tag 20 are provided. If it is substantially transparent, the positioning mark 25 or the end (for example, the right end) of the lower tag 20 and the positioning mark 25 of the upper tag 20 may be aligned.

  Moreover, the form of the positioning mark 25 formed on the tag 20 is arbitrary, and in the case of a linear shape as shown in the figure, the thickness, color, and type of line (solid line, broken line, etc.) can be appropriately set. . Further, the positioning mark 25 may be anything that can be visually recognized from the surface side. For example, it may be formed on the protective film 27 by printing or the like as shown in FIG. 3B, or as shown in FIG. As described above, the protective film 27 may be provided with uneven portions (here, recessed portions), and the uneven portions may be used as the positioning marks 25. The tag 20 is not limited to the configuration shown in FIG. 4, and may be located at the center or upper right of the clear holder 41, or may be slightly separated from the vicinity of the take-out side. The clear holder 41 does not have to be completely transparent, as long as the back surface can be seen through to some extent, and may be colored in an arbitrary color.

  In FIG. 3, the positioning mark 25 is formed so as to cross the tag 20 from one long side to the other long side. However, the positioning mark 25 only needs to be aligned. It may be formed only in the vicinity of the long side, and the positioning mark 25 does not have to be linear, and may be a triangle, an arrow, a dot, or the like as shown in FIG. When the positioning mark 25 is partially formed so as not to cross the tag antenna 21 as described above, the positioning mark 25 may be formed on the base material 26. When the positioning mark 25 is formed on the base material 26, the positioning mark 25 shown in FIG. As shown in FIG. 7B showing a YY cross section, when the tag antenna 21 and the capacitor 22 are formed, they can be formed by etching so that the conductor thin film remains at the position where the positioning mark 25 is formed. .

  3 and 7, the positioning mark 25 is formed at a position where the long side of the tag 20 is divided. However, as shown in FIG. 8, the positioning mark 25 is formed at a position where the short side of the tag 20 is divided (preferably You may form in the position which divides | segments a short side substantially equally. In order to make the distance between the tag 20 and the reader / writer 30 substantially constant, in FIG. 4 and FIG. 6, the tag 20 is attached while being shifted in the horizontal direction in the drawing along the side on the take-out side of the clear holder 41. However, when affixing the long side of the tag 20 in FIG. 8 with the side on the take-out side of the clear holder 41, the other tag 20 can be attached while being shifted in the vertical direction of FIG. 4 or FIG.

  3, 7, and 8, two positioning marks 25 are formed on the tag 20, but as shown in FIG. 4, the positioning marks 25 of one tag 20 and the end of the other tag 20 In the case of positioning, the positioning mark 25 may be only one (the positioning mark on the right side in the case of the configuration of FIG. 4). 4 and 6, the plurality of tags 20 are attached to the clear holder 41 in the same orientation. However, when the tag antenna 21 is formed on the base material 26 at a substantially symmetrical position, the tag 20 is shown in FIG. As shown, the tag 20 can be rotated 180 degrees for pasting.

  3 and 7 to 9, the positioning mark 25 is formed on the tag 20 itself. However, the positioning mark 25 may be formed on the document holder 40 side. For example, as shown in FIG. 10A, a positioning mark 25 is formed in advance on the document holder 40 by printing or the like based on the shift amount of the tag 20, and as shown in FIG. 10 is attached to the end of the document holder 40 (here, the upper left end), and then, as shown in FIG. Here, the upper left end part) can be aligned and pasted. In the case of this configuration, the upper tag 20 is not attached to the tag 20 arranged on the lower side with the document holder 40 interposed therebetween, so the document holder 40 does not need to be transparent and is formed of a material such as paper. Holders and envelopes that have been used can be used.

  In FIG. 10, one tag 20 is aligned with the end of the document holder 40, and the other tag 20 is aligned with the positioning mark 25 formed on the document holder 40, but two positioning marks 25 are provided on each document holder 40. One tag 20 may be aligned with one positioning mark 25 and the other tag 20 may be aligned with the other positioning mark 25, or three or more positioning marks 25 may be formed on each document holder 40. The tags 20 may be sequentially aligned with different positioning marks 25.

  In FIG. 10, the positioning mark 25 is formed on the document holder 40. However, in this configuration, a commercially available document holder 40 on which the positioning mark 25 is not formed cannot be used. Therefore, when using a commercially available document holder 40, as shown in FIG. 11 (a), a sheet on which a positioning mark 25 has been previously formed (material, color, etc. are arbitrary) is set at a predetermined position (here In FIG. 11B, the lower tag 20 is attached to a predetermined position (here, upper left) of the document holder 40 or the sheet 42, and then the upper tag is attached. 20 can also be attached in alignment with the positioning mark 25 of the sheet 42. Also in this configuration, the document holder 40 does not need to be transparent, and the document holder 40 and the tag 20 having an arbitrary form can be used. Therefore, versatility can be enhanced.

  By using the tag 20, the document holder 40, and the sheet 42 having the various configurations described above and shifting and pasting the tag 20 to the document holder 40, mutual interference between adjacent tags 20 can be suppressed. It is considered that the degree of mutual interference of the tag 20 changes depending on the shift amount of 20. Therefore, the following experiment was conducted in order to confirm how much the pasting position can be shifted to suppress the mutual interference of the adjacent tags 20.

  First, as shown in FIG. 12, eleven partition plates 52 are provided in a steel drawer 51, and four A4 sheets (thickness approximately 1 mm) are sandwiched between the partition plates 52 (approximately 25 mm). Ten sets of 41 pieces each of 41 pieces were stored, for a total of 150 pieces. As shown in FIG. 13, the tag antenna 21 of the tag 20 has a structure in which the tag antenna 21 is wound six times. The outermost tag antenna 21 has an outer diameter of 46 mm × 77 mm, and the innermost tag antenna 21 has an inner diameter of 29 mm × 61 mm. The tag 20 is attached at the upper left end of the clear holder 41. Further, as shown in FIG. 14, the 15 clear holders 41 are set as one set, and the tags 20 are shifted in the long side direction for the even-numbered sets, and the shift amount is 0 (see FIG. 14A). 1/3 (refer to FIG. 14 (b)), 1/2 (refer to FIG. 14 (c)), 2/3 (refer to FIG. 14 (d)), 1 (refer to FIG. 14 (e)). did.

  On the other hand, the antenna size of the antenna unit 31 of the reader / writer 30 is 38 mm × 113 mm, the FR length is 32 bits, the serial communication speed is 38400 bps, the scan speed is 10 frames / second, the long side direction of the antenna unit 31 and the tag 20 A scanning experiment was performed by scanning five times from the front to the back (in the case of reciprocation, from the front to the back and from the back to the front) in combination with the long side direction. The results are shown in Table 1.

  According to Table 1, when the shift amount is 0 (FIG. 14A), the reading success rate is as low as about 47% on the average, whereas as the shift amount increases, the read success rate gradually increases, and the shift amount Was 2/3 (FIG. 14 (d)), the average reading success rate was approximately 94%, and the best result was obtained. In addition, when the shift amount is 1 (FIG. 14E), the read success rate is low. This is because the width in the long side direction of the tag antenna 21 of the two types of tags 20 that are shifted is the reader. It is considered that the overlap between the tag antenna 21 and the antenna unit 31 is reduced when the width of the antenna unit 31 of the writer 30 is larger than the width in the long side direction.

  Under the above conditions, the reading success rate was the highest when the tag 20 was shifted by 2/3 of the long side. However, the size and shape of the tag antenna 21 of the tag 20 and the antenna unit 31 of the reader / writer 30 were read. Since the optimal shift amount varies depending on the distance and positional relationship between the tag antenna 21 and the antenna unit 31 at the time, the angle of the antenna unit 31 with respect to the tag antenna 21, the number of sets of the clear holder 41, etc. Is preferably set according to these conditions.

  In this way, the tag 20 attached near the take-out side of the document holder 40 such as the clear holder 41 is brought close to the take-out side of the document holder 40 and is a portable reader / reader that reads information stored in the tag 20. In the RFID system 10 including the writer 30, the tag 20 attached to the document holder 40 indicates a position where the tag 20 is divided in the direction of the side (preferably a position where the tag 20 is divided into approximately equal integers of 2 or more). The positioning mark 25 is formed, the positioning mark 25 indicating the attachment position of the tag 20 is formed on the document holder 40, or the positioning mark 25 indicating the attachment position of the tag 20 is formed on the sheet 42 to be attached to the document holder 40. Then, by sticking each tag 20 to the document holder 40 on the basis of the positioning mark 25, the tag 20 is not substantially fixed. Since it can be pasted with a shift amount (preferably a shift amount of 2/3), mutual interference between the tags 20 can be suppressed, and the information of the tag 20 pasted on each document holder 40 can be stored. Easy and reliable reading.

  Next, an RFID system, a tag, and a document holder management method according to the second embodiment of the present invention will be described with reference to FIGS. FIG. 15 is a plan view showing the configuration of the tag of this embodiment, and FIG. 16 is a plan view showing a procedure for attaching the tag to the document holder.

  In the first embodiment described above, the tag 20 on which the positioning mark 25 is formed is pasted so as not to protrude from the side on the take-out side of the document holder 40. In this configuration, when the document holder 40 is not transparent, The positioning of the upper tag 20 cannot be performed using the positioning mark 25 of the lower tag 20, and the positioning mark 25 must be formed on the document holder 40 or the sheet 42. Therefore, in this embodiment, even when the tag 20 is pasted on the non-transparent document holder 40, the tag 20 is taken out of the document holder 40 so that the positioning can be performed using the positioning mark 25 formed on the tag 20. Paste it so that part of it protrudes from the side.

  In this case, if the adhesive layer 28 is formed on the entire back surface of the tag 20, the adhesive layer 28 that protrudes from the document holder 40 may stick to another document holder 40 or the tag 20. Therefore, as shown in FIG. 15, the adhesive layer 28 is not formed on the portion of the back surface of the tag 20 that protrudes from the document holder 40.

  Then, as shown in FIG. 16 (a), the lower tag 20 is pasted so as to protrude from the upper end of the first document holder 40, and then the second tag as shown in FIG. 16 (b). When the second document holder 40 is stacked, the lower tag 20 is partially visible from the top of the second document holder 40. Then, as shown in FIG. 16C, with reference to the positioning mark 25 (here, the right positioning mark 25) formed on the lower tag 20, the end (here, the left end) becomes the positioning mark 25. The upper tag 20 is pasted so as to match.

  Also in this embodiment, a plurality of document holders 40 may be set, and the attachment position of the tag 20 may be shifted for each set, or the attachment position of the tag 20 may be shifted in the same direction at least twice. Also good. Further, the number and form of the positioning mark 25 formed on the tag 20 are arbitrary, and the positioning mark 25 may be any one that can be visually recognized from the surface side, and may be formed on the protective film 27 by printing or the like. The protective film 27 may be provided with uneven portions, or the positioning marks 25 may be formed on the base material 26 as triangles, arrows, dots, or the like. Further, the positioning mark 25 may be formed at a position where the short side of the tag 20 is divided.

  In this way, the tag 20 that is pasted so as to partially protrude from the side on the take-out side of the document holder 40 and the portable reader / writer that reads the information stored in the tag 20 close to the take-out side of the document holder 40. In the RFID system 10 including 30, the tag 20 to be attached to the document holder 40 is positioned to indicate the position at which the tag 20 is divided with respect to the direction of the side (preferably the position at which the tag 20 is substantially equally divided by two or more integers). By forming the mark 25 and attaching the tag 20 to each document holder 40 based on the positioning mark 25, the tag 20 is attached with being shifted by a substantially constant shift amount (preferably a shift amount of 2/3). Therefore, the mutual interference between the tags 20 can be suppressed, and the information on the tags 20 attached to the respective document holders 40 can be easily obtained. It can be reliably read.

  In each of the above embodiments, the case where the tag 20 of the present invention is affixed to the document holder 40 for storing a document is shown, but the present invention is not limited to the above embodiment, and the document itself or a thin book, The present invention can be similarly applied to all thin and easily deformable articles such as a recording medium such as a CD stored in a soft case.

  The present invention stores and manages a document holder for storing thin documents, contracts, bond documents, medical records, drawings, photographs, etc. with a small number of pages, so that each document can be efficiently inventoried, searched, and pointed out of erroneous storage. The present invention can be used for the RFID system and tag and the management method thereof.

1 is a perspective view schematically showing a configuration of an RFID system according to a first embodiment of the present invention. 1 is a diagram illustrating a general configuration of an RFID system. It is the top view which shows the structure of the tag which concerns on 1st Example of this invention typically, and sectional drawing in XX. It is a top view which shows the procedure which affixes the tag which concerns on 1st Example of this invention to a clear holder. It is a top view which shows the arrangement | sequence state of the clear holder which affixed the tag which concerns on 1st Example of this invention. It is a top view which shows the other example of the procedure which affixes the tag which concerns on 1st Example of this invention to a clear holder. It is the top view which shows other structures of the tag which concerns on 1st Example of this invention typically, and sectional drawing in a YY line. It is a top view which shows typically the other structure of the tag which concerns on 1st Example of this invention. It is a top view which shows typically the other structure of the tag which concerns on 1st Example of this invention. It is a top view which shows the procedure which affixes a tag on the document holder which concerns on 1st Example of this invention. It is a top view which shows the procedure which affixes a tag on a document holder provided with the sheet | seat which concerns on 1st Example of this invention. It is a top view which shows a mode that the clear holder which stuck the tag is accommodated in a drawer | drawer. It is a top view which shows the specific structure of a tag. It is a perspective view which shows the state which arranged the clear holder which affixed the tag. It is the top view which shows typically the structure of the tag which concerns on the 2nd Example of this invention, and sectional drawing in a ZZ line. It is a top view which shows the procedure which affixes the tag which concerns on 2nd Example of this invention to a clear holder.

Explanation of symbols

10 RFID System 20 Tag 21 Tag Antenna 22 Capacitor 23 Resonant Circuit 24 IC
25 Positioning Mark 26 Base Material 27 Protective Film 28 Adhesive Layer 30 Reader / Writer 31 Antenna Unit 32 Control Unit 33 Communication Circuit Unit 34 Arithmetic Processing Unit 40 Document Holder 41 Clear Holder 42 Sheet 50 Storage Container 51 Partition Plate

Claims (18)

A tag that includes an antenna and an IC and is attached to the vicinity of the side on the take-out side of a substantially transparent document holder for storing documents,
A tag, wherein a positioning mark is formed on the viewing surface of each of the tags for shifting and pasting other tags arranged with the document holder interposed therebetween. A tag that includes an antenna and an IC, and is affixed so that a part protrudes from the side on the take-out side of a document holder for storing documents,
A positioning mark for shifting and pasting another tag arranged with the document holder in between is formed in a region including the part of the viewing surface of each tag.   The tag according to claim 2, wherein an adhesive material is formed only in a region excluding the part of the surface of the tag attached to the document holder.   4. The positioning mark according to claim 1, wherein the positioning mark is formed by printing on a protective film covering the antenna, or is formed of the same member as the antenna on the same layer as the antenna. The described tag.   The tag according to any one of claims 1 to 4, wherein the positioning mark is formed at a position where the tag is substantially equally divided with respect to the direction of the side. A plurality of substantially transparent document holders for storing documents, an antenna and an IC, a tag attached to the vicinity of the side on the take-out side of the document holder, and communication with the tag using electromagnetic induction or electromagnetic coupling An RFID system comprising at least a reader or a reader / writer that performs:
A predetermined positioning mark is formed on the viewing surface of each tag,
An RFID system, wherein a tag of any one of the document holders and another tag of another document holder superimposed on the document holder are attached so as to be shifted from each other based on the positioning mark. A plurality of document holders for storing documents, an antenna and an IC, a tag attached so as to partially protrude from a side on the take-out side of the document holder, and the tag using electromagnetic induction or electromagnetic coupling An RFID system comprising at least a reader or a reader / writer that performs communication,
A predetermined positioning mark is formed in a region including the part of the viewing surface of each tag,
An RFID system, wherein a tag of any one of the document holders and another tag of another document holder superimposed on the document holder are attached so as to be shifted from each other based on the positioning mark.   8. The RFID system according to claim 7, wherein an adhesive material is formed only in a region excluding the part of the surface of the tag to be attached to the document holder.   9. The positioning mark according to claim 6, wherein the positioning mark is formed by printing on a protective film covering the antenna, or is formed of the same member as the antenna on the same layer as the antenna. The described RFID system.   The RFID system according to any one of claims 6 to 9, wherein the positioning mark is formed at a position that divides the tag substantially equally with respect to the direction of the side. A tag that includes a plurality of document holders for storing documents, an antenna, and an IC, a tag that is attached in the vicinity of the side on the take-out side of the document holder, and a reader that communicates with the tag using electromagnetic induction or electromagnetic coupling Or a document holder management method using an RFID system including at least a reader / writer,
A document holder management method, wherein a tag of any one of the document holders and another tag of another document holder to be superimposed on the document holder are pasted while being shifted in the direction of the side. A plurality of substantially transparent document holders for storing documents, an antenna and an IC, a tag attached to the vicinity of the side on the take-out side of the document holder, and communication with the tag using electromagnetic induction or electromagnetic coupling A document holder management method using an RFID system including at least a reader or a reader / writer
A predetermined positioning mark is formed on the viewing surface of each tag,
Visually confirm the positioning mark through another document holder superimposed on the viewing surface side of the tag of any document holder,
A document holder management method, wherein another tag is attached to the other document holder while being shifted based on the positioning mark. A plurality of document holders for storing documents, an antenna and an IC, a tag attached so as to partially protrude from a side on the take-out side of the document holder, and the tag using electromagnetic induction or electromagnetic coupling A document holder management method using an RFID system including at least a reader or a reader / writer that performs communication,
Forming a predetermined positioning mark in a region including the part of the viewing surface of each tag;
The positioning mark protruding from the other document holder superimposed on the viewing surface side of the tag of any document holder is visually recognized,
A document holder management method, wherein another tag is attached to the other document holder while being shifted based on the positioning mark.   14. The document holder management method according to claim 13, wherein an adhesive material is formed only in a region excluding the part of the surface of the tag attached to the document holder.   The positioning mark is formed on a protective film covering the antenna by printing, or formed on the same layer as the antenna with the same member as the antenna. How to manage document holders.   The document holder management method according to any one of claims 12 to 15, wherein the positioning mark is formed at a position where the tag is substantially equally divided with respect to the direction of the side. A tag that includes a plurality of document holders for storing documents, an antenna, and an IC, a tag that is attached in the vicinity of the side on the take-out side of the document holder, and a reader that communicates with the tag using electromagnetic induction or electromagnetic coupling Or a document holder management method using an RFID system including at least a reader / writer,
A predetermined positioning mark is formed on each of the document holders,
A document holder management method, wherein a tag of any one of the document holders and another tag of another document holder to be superimposed on the document holder are pasted while being shifted from each other based on the positioning mark. A tag that includes a plurality of document holders for storing documents, an antenna, and an IC, a tag that is attached in the vicinity of the side on the take-out side of the document holder, and a reader that communicates with the tag using electromagnetic induction or electromagnetic coupling Or a document holder management method using an RFID system including at least a reader / writer,
Affixing a sheet on which a predetermined positioning mark is formed in advance to each of the document holders,
A document holder, wherein a tag of any one of the document holders and another tag of another document holder to be overlapped with the document holder are attached to each other while being shifted from each other based on the positioning mark formed on the sheet. Management method.

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