JP4743392B2 - How to use information recording media - Google Patents

Description

The present invention relates to an information recording medium and a method for using the information recording medium. Specifically, there is a feature that two independent non-contact IC tag circuits are arranged adjacent to each other on one continuous base film surface, or 3 to 9 non-contact IC tag circuits are arranged adjacent to each other. The present invention relates to an information recording medium. Since such an information recording medium can be used by being attached to the same adherend (article), a specific use effect can be exhibited.
The information recording medium of the present invention is used as a normal non-contact IC tag, and is particularly suitable for use in a system or the like in which information loss is a problem and for increasing the reliability.

In the method of using the information recording medium of the present invention, the information recording medium is stuck on an adherend (article) and the same information is recorded substantially simultaneously, so that no information recording error occurs. Also, by recording the unique number of the IC chip read by the reader / writer immediately before on the information recording medium recorded later, the traveling direction of the information medium can be identified.
The fields of use of the information recording medium of the present invention are the fields of transportation, distribution, sales management, factory process management, product delivery and baggage handling, and events, and specific uses include packing tags, labels, slips, tickets, etc. .

Non-contact IC tags record and hold information and can exchange information by communicating with external devices in a non-contact manner, so that they can be used as recognition media in transportation and logistics, or as identification media for product quality control, inventory management, etc. In addition, they are increasingly used for various purposes.
However, an integrated circuit (IC chip) used for a non-contact IC tag is a precision component, which is a fragile electronic device in a sense. Therefore, a problem occurs in an IC chip under severe handling or poor environmental conditions. Data loss may occur. Further, the IC chip may be damaged after information exchange. On the other hand, even if there is no defect on the non-contact IC tag side, reliable information exchange is not always performed depending on communication conditions.

Furthermore, there is a case where the amount of information received from the reader / writer is large and information cannot be recorded with only one contactless IC tag, and data may be lost.
When such data loss occurs, the reliability of the entire system is lowered, and as a result, the use of the non-contact IC tag itself may be abandoned.
Therefore, there is a need for a non-contact IC tag (information recording medium) that can increase the reliability of data, although the information is recorded with redundancy, and the cost is expected to increase somewhat. However, conventionally, such a non-contact IC tag has not been provided on the market.

  Therefore, conventionally, two non-contact IC tags are attached for backup, or a non-contact IC tag is provided with a visible code such as a barcode, a two-dimensional barcode, or an OCR on the surface for backup. It has been broken. However, it takes time and effort to prepare and attach a plurality of identical non-contact IC tags, and there is a problem in that it takes time to read a plurality of types of information and the convenience is lowered. Therefore, it is conceivable to provide two or more independent non-contact IC tag circuits on one continuous base film surface.

  As such a technique, Patent Document 1 proposes an IC card in which a plurality of IC modules are independently provided on a card base. However, this is a contact IC card and is not related to a non-contact IC tag. Patent Document 2 proposes a similar IC card, but it does not relate to a non-contact IC tag. Patent Document 3 proposes a non-contact IC card having a plurality of resonance units composed of a planar coil and a capacitor for a single IC chip. However, since this IC chip is one, it is different from one having a plurality of non-contact IC tags.

JP 58-134456 A Japanese Utility Model Publication No. 61-107062 JP 2001-109861 A

  On the other hand, in the field of information processing, a plurality of external storage media are provided for one computer system, and information recording has been made redundant to improve system reliability and to record in a distributed manner. It has been broken. This technique is called mirroring or striping. In mirroring, the same information is recorded repeatedly on a plurality of external storage media (hard disks), and if one hard disk malfunctions, it tries to read from the other hard disk. Striping treats a plurality of disks in the same way as a single disk. By distributing the writing and reading processing from the disk to a plurality of disks and executing them simultaneously in parallel, the access speed is increased or the capacity is increased. Although the present invention essentially aims at these effects, a unique method of use can also be performed as a non-contact IC tag.

  A conventional non-contact IC tag usually has one antenna structure and an IC chip coupled thereto on one base film surface. Therefore, when information is recorded on the non-contact IC tag, there is a problem that when the IC tag malfunctions in use or wrong data is recorded, reading becomes impossible or wrong data is read. there were. In such a case, there is a problem that it becomes impossible to authenticate the attached article or person. Therefore, it is necessary to select and use a plurality of non-contact IC tags having the same characteristics when important information is recorded with data redundancy or when a large amount of information is received. There was such a problem. Further, when visual information is recorded at the same time as recording on an IC chip, a plurality of devices are required, and writing and recognition take time and labor, and there are many problems in practical use.

Also, when a special method of using a non-contact IC tag is used, for example, when two or more non-contact IC tags are attached to an article and the traveling direction of the article is to be acquired by the order read by the reader / writer, or When it is desired to control the traveling direction, it is necessary to use a plurality of non-contact IC tags, and there is a problem that it takes time and effort.
Accordingly, the present invention has been completed with the idea that the problem can be solved if a plurality of non-contact IC tag circuits having the same characteristics are held on a single base film.

A first aspect of the present invention that solves the above problems has an antenna structure and an IC chip including a non-contact communication function unit coupled to the antenna structure, a control unit, and a memory on a continuous base film surface. after stuck substantially two independent non-contact IC tag circuit information recording medium that is disposed adjacent the same characteristics to an adherend, to read write by the reader-writer, the same information Recorded in two non-contact IC tag circuits, and the IC chip of the non-contact IC tag circuit written after the first writing is recorded with the unique number of the IC chip read and written by the reader / writer immediately before And a method of using the information recording medium .

In the method of using the information recording medium, the non-contact IC tag circuit has directivity with respect to radio waves received and transmitted, and the two non-contact IC tag circuits may be arranged in parallel so as to be in the same directivity direction. Alternatively, the two non-contact IC tag circuits may be arranged so as to have directivity directions orthogonal to each other. The antenna structure may be a planar wire coil antenna or a planar dipole antenna.

According to a second aspect of the present invention, an IC chip including an antenna structure and a non-contact communication function unit coupled to the antenna structure, a control unit, and a memory is substantially provided on a continuous base film surface. the three independent to information recording medium noncontact IC tag circuit that is disposed adjacent the 9 having the same characteristics since stuck to an adherend, to read write by the reader-writer, the same information 3 The IC chip of the non-contact IC tag circuit that is recorded in the non-contact IC tag circuit of No. 9 and written after the first writing is recorded with the unique number of the IC chip read and written immediately by the reader / writer. There is a method of using an information recording medium characterized by recording .

In the above method of using the information recording medium, the non-contact IC tag circuit has directivity with respect to radio waves received and transmitted, and all the non-contact IC tag circuits may be arranged in parallel so as to be in the same directivity direction. The directivity directions between two adjacent non-contact IC tag circuits may be arranged so as to be orthogonal to each other, or all non-contact IC tag circuits may be arranged so as to have different directivity directions. . The antenna structure may be a planar wire coil antenna or a planar dipole antenna.

According to a third aspect of the present invention, an IC chip including an antenna structure and a non-contact communication function unit coupled to the antenna structure, a control unit, and a memory is provided on a single continuous base film surface. An information recording medium in which 2 to 9 independent non-contact IC tag circuits having the same characteristics are arranged adjacent to each other is attached to an adherend, and then read and written by a reader / writer, and the same information is stored in 2 to The IC chip of the non-contact IC tag circuit that is substantially recorded in the non-contact IC tag circuit 9 and written after the first writing is unique to the IC chip read and written by the reader / writer immediately before. The method of using an information recording medium is characterized in that a traveling direction of the adherend with respect to the reader / writer is obtained by recording a number.

In the information recording medium used in the present invention, two or more non-contact IC tag circuits having the same characteristics are disposed adjacent to each other on a continuous base film surface. Even if the communication situation deteriorates, the contactless IC tag malfunctions, or the data is damaged after writing, it can be recorded on any contactless IC tag. Since data can be recorded or information on an IC chip in which data remains can be read, data loss is less likely to occur.
When the non-contact IC tag has directivity and the two or more non-contact IC tag circuits are arranged in different directions, the information recording medium used in the present invention is one of the non-contact IC tags. Since the tag circuit can secure a better communication state, the occurrence of deficiencies in information exchange is reduced even in a poor communication state.

According to the method of using the information recording medium of the present invention (Claims 1 and 4 ), the same information can be recorded substantially simultaneously on each IC chip of two or more non-contact IC tag circuits, and the first writing can be performed. Since the unique number of the IC chip read and written by the reader / writer immediately before is recorded in the IC chip of the subsequent non-contact IC tag circuit, the IC chip of the non-contact IC tag circuit written after the writing is recorded on the IC chip. Can be known, and various kinds of information analysis can be performed.
According to the method of using the information recording medium of the present invention (Claim 8 ), the information recording medium can be adhered to the adherend (article) and the traveling direction thereof can be managed. Management is not mistaken.

The information recording medium of the present invention will be described below with reference to the drawings.
1 is a plan view showing an example of the first embodiment of the information recording medium of the present invention, FIG. 2 is a sectional view of FIG. 1, and FIG. 3 is a plan view showing another example of the first embodiment. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8, and FIG. 9 are plan views showing various examples of the second embodiment, and FIG. 10 is a diagram for explaining how to use the information recording medium of the present invention. .

FIG. 1 is a plan view showing an example of the first embodiment of the information recording medium of the present invention.
As shown in FIG. 1, in the information recording medium 1 of the present invention, two non-contact IC tag circuits 10a and 10b are formed on one continuous base film 3 surface. The non-contact IC tag circuit 10a has an antenna structure 12a and an IC chip 13a coupled to the antenna structure, and the non-contact IC tag circuit 10b has an antenna structure 12b and an IC chip 13b coupled to the antenna structure. . The IC chips 13a and 13b are ordinary ones including a non-contact communication function unit, a control unit, and an information storage memory. The IC chips 13a and 13b are attached to the antenna ends t1 and t2. In the case of FIG. 1, the antenna structures 12a and 12b are in the form of a planar winding coil, but may be of a planar dipole type or a patch antenna type. These two non-contact IC tag circuits 10a and 10b are adjusted so as to have substantially the same characteristics, and are not electrically connected to each other and do not cause interference.

FIG. 2 is a cross-sectional view of a portion passing through the IC chips 13a and 13b of FIG.
In the information recording medium 1 of the present invention, the antenna structures 12a and 12b of the base film 3 are covered with a surface base 4 made of a plastic film or a paper base, usually with an adhesive layer 5 interposed therebetween. This is to prevent the antenna structures 12a and 12b and the IC chips 13a and 13b from being directly exposed to the outer surface. However, the surface base material 4 is not an essential configuration.
For the convenience of illustration, the antenna patterns 12a and 12b and the adhesive layer 5 appear to have a gap, but are actually in close contact.
The above configuration is the same as that of a normal non-contact IC tag except that it has two non-contact IC tag circuits. In general, the base film 3 has an adhesive layer 6 for adhering the information recording medium 1 to an adherend (article) and is protected by a release paper 7 on the lower surface of the base film 3.

  FIG. 3 is a plan view showing another example of the first embodiment. As shown in FIG. 3, the information recording medium 1 also has two non-contact IC tag circuits 10a and 10b formed on one continuous base film 3 surface. The non-contact IC tag circuit 10a has an antenna structure 12a and an IC chip 13a coupled to the antenna ends t1 and t2, and the non-contact IC tag circuit 10b is coupled to the antenna structure 12b and the antenna ends t1 and t2. The IC chip 13b is provided. In the information recording medium 1 of FIG. 1, the two non-contact IC tag circuits 10a and 10b are arranged in parallel in the same direction, whereas in the case of FIG. 3, the two non-contact IC tag circuits 10a and 10b are arranged. There is a difference that is arranged in a direction orthogonal to each other.

  When the arrangement is orthogonal, the directivity of the non-contact IC tag circuit 10b with respect to the radio wave is indicated by the arrow Y2 when the non-contact IC tag circuit 10a has directivity in the direction of the arrow Y1. This has the advantage of having different directivity. Even when the reception state is not good, any one of the non-contact IC tag circuits can receive and transmit in a better state with the reader / writer. Directivity refers to the intensity of radiation with respect to the direction of the antenna, but it cannot be represented in a plane because it is radiated into a three-dimensional space, but in FIG. 3, arrows Y1 and Y2 are displayed on a plane for convenience. is doing. Any antenna structure has some directivity.

4 to 9 are plan views showing examples of the information recording medium 2 of the second embodiment. The second embodiment is characterized in that 3 to 9 non-contact IC tag circuits are formed adjacent to one continuous base film 3 surface. This is because there is no special reason for setting the upper limit to 9, but the necessity of increasing it to 10 or more is not particularly recognized.
In the case of FIG. 4, three non-contact IC tag circuits are shown. As shown in FIG. 4, the information recording medium 2 has three non-contact IC tag circuits 20a, 20b, and 20c formed on one continuous base film 3 surface. The non-contact IC tag circuit 20a has an antenna structure 22a and an IC chip 23a coupled to the antenna structure, and the non-contact IC tag circuit 20b has an antenna structure 22b and an IC chip 23b coupled to the antenna structure. The IC tag circuit 20c has an antenna structure 22c and an IC chip 23c coupled to the antenna structure. The IC chips 23a, 23b, and 23c are ordinary ones that include a non-contact communication function unit, a control unit, and an information storage memory.

In the case of FIG. 4, the antenna structures 22a, 22b, and 22c are planar dipole antennas. The dipole antenna is formed by photo-etching a metal foil laminated on the base film 3 or printing with a conductive printing ink or the like. These three non-contact IC tag circuits 20a, 20b, and 20c are adjusted so as to have substantially the same characteristics, and are not electrically connected to each other and do not cause interference with each other.
In FIG. 4, the directivity of the antenna structure (dipole antenna) is indicated by arrows Y3, Y4, and Y5. Therefore, the three non-contact IC tag circuits 20a, 20b, and 20c are arranged so that their directing directions are orthogonal to each other between adjacent circuits, but they may be in the same direction. By providing non-contact IC tag circuits with the same characteristics on one continuous base film surface of 3 to 9, redundant recording of information can be further improved, and in the case of distributed recording, the total amount of information is increased. be able to.

  5, FIG. 6, FIG. 7, FIG. 8, and FIG. 9 are plan views showing various examples of the second embodiment. FIG. 5 has four non-contact IC tag circuits on the same base film 3 side. FIG. 6 shows a case with five contactless IC tag circuits, FIG. 7 shows a case with six contactless IC tag circuits, and FIGS. 8 and 9 show a case with nine contactless IC tag circuits. Yes.

  FIG. 5A is an information recording medium 2 arranged so that the directivity of the four non-contact IC tag circuits 20a, 20b, 20c, and 20d is in the same direction, and is used when the communication state is stable. Can do. In this case, the same information from the same reader / writer may be redundantly recorded on the IC chips 23a, 23b, 23c, and 23d of each non-contact IC tag circuit to improve the reliability of the data. The information may be distributed and recorded on the IC chips of the contact IC tag circuit.

  FIG. 5B shows the information recording medium 2 in which the directivities of the four non-contact IC tag circuits 20a, 20b, 20c, and 20d are alternately arranged in consideration of the instability of the communication state. is there. If reception is possible in any state, the same usage method as in FIG. 5A can be used.

FIG. 6 shows the information recording medium 2 arranged so that the directivity of the five non-contact IC tag circuits 20a, 20b, 20c, 20d, and 20e is in the same direction, and can be used when the communication state is stable. it can. In this case, the same information may be redundantly recorded on the IC chips 23a, 23b, 23c, 23d, and 23e of each non-contact IC tag circuit to improve data reliability, or the information may be distributed and recorded. May be. After the same information is recorded, the recorded non-contact IC tag circuit can be divided and used for various different purposes. Moreover, although it is a specific usage method in the case of FIG. 6, it becomes a suitable information recording medium also when it wraps around a cylindrical container or the trunk | drum surface of a three-dimensional object.

  FIG. 7 shows the information recording medium 2 arranged in a matrix so that the directivity directions of the six non-contact IC tag circuits 20a, 20b, 20c, 20d, 20e, and 20f are alternately orthogonal. It is taken into consideration. In FIG. 7, the directivity directions of the upper three non-contact IC tag circuits 20a, 20b, and 20c are opposite to the directivity directions of the lower three non-contact IC tag circuits 20d, 20e, and 20f. . As a result, the probability of communication can be increased regardless of the position or curved surface of the information recording medium 2. If reception is possible in any state, the same usage method as in FIG. 6 can be used.

  FIG. 8 shows information recordings arranged in an annular shape at intervals of 40 degrees so that the directivity directions of the nine non-contact IC tag circuits 20a, 20b, 20c, 20d, 20e, 20f, 20g, 20h, and 20i are all different. Medium 2. Considering the case where the communication state is very unstable, it is for the purpose of ensuring communication with any non-contact IC tag circuit.

  FIG. 9 shows that the non-contact IC tag circuits 20a, 20b, 20c, 20d, 20e, 20f, 20g, 20h, and 20i have the same directivity direction, and the positions of the IC chips are equally spaced from each other. The information recording medium 2 is arranged in a matrix so as to become. Such an information recording medium 2 is useful for sticking to an adherend (article) and acquiring (identifying) the traveling direction of the article relative to the non-contact reader / writer, as will be described later. Of course, it is also effective for data duplication recording and distributed recording.

  The information recording medium 2 of the present invention can be arranged in various ways different from the case of the non-contact IC tag circuit of 4, 5, 6, 9 shown in the figure, and in the case of the non-contact IC tag circuit of 7 or 8 not shown However, it is obvious to those skilled in the art that various arrangements are possible according to the purpose, and various information recording media 2 can be realized.

The method of using the information recording medium of the present invention has been outlined together with the description of the various embodiments described above.
[First usage]
The first usage method is to record the same information in duplicate in each non-contact IC tag circuit having the same characteristics. This is a recording method corresponding to mirroring in the information processing technology. In this case, the purpose is to provide redundancy to the data and to record the information on the non-contact IC tag circuits arranged in different directivity directions because the communication state is unstable, thereby ensuring the reliability of information recording. For. In this case, since a plurality of non-contact IC tag circuits having the same characteristics exist in the non-contact communication area of the same reader / writer, a communication collision (collision) may occur. A technology for communication has been established, and in substantially the same time, non-contact IC tag circuits are sequentially selected to perform non-contact communication.
If one of them is read, the object or individual to which the information recording medium is attached can be specified, and if data is used later, the information written by the reader / writer can be read from any one of the non-contact IC tag circuits. Is achieved.

[Second usage]
The second method of use is to record information in a distributed manner on each contactless IC tag circuit having the same characteristics. This is a recording method corresponding to striping in the information processing technology. In the information processing, it is expressed as “distributed writing” to a plurality of drives. In this case, the storage capacity of the information storage medium 1 or the information storage medium 2 as a whole can be increased while reducing the storage capacity of the IC chip of one non-contact IC tag circuit. This is a usage method that can be used effectively when the amount of information acquired from the reader / writer varies greatly.
“Distributed recording” is the same as “divided recording”, but it is recording in the memory of two or more IC chips. In this case, there is a method of recording to the next IC chip when one IC chip is full, and a method of sequentially recording a plurality of IC chips in a predetermined amount. I do not care.

  Even in the case of distributed recording, communication collision may occur, but the reader / writer selects and communicates with one non-contact IC tag circuit, and receives a signal from the circuit that the amount of information stored in the IC chip has reached its limit. In this case, it can be programmed to select one of the following non-contact IC tag circuits to communicate and sequentially record necessary information. When information is used later, the information written by the reader / writer can be read and synthesized from all the non-contact IC tag circuits in which the information is recorded to obtain one large piece of information.

[Third usage method]
FIG. 10 is a diagram for explaining a method of using the information recording medium of the present invention, but mainly relates to the third method of use.
In the third usage method, in principle, the same information is recorded in each non-contact IC tag circuit having the same characteristics, but a unique unique number (generally unique number) recorded in the IC chip of each non-contact IC tag circuit. It may be referred to as “ID”).
Generally, a unique number is always given to an IC chip for a non-contact IC tag when the chip is manufactured. As the name indicates, this unique number is given a unique number for each IC chip, and in principle there is no duplicate number. In general, it is recorded in a ROM that cannot be rewritten / erased.

  There is a unique number assignment method for each company, and there is no uniform standard, but a long number is used from the viewpoint that duplicate numbers will not occur even if it is used in the future. It is necessary to grant. As an example, there are cases in which 8 bytes = 2 are given in the 64th power scheme. Recording in the ROM may be written with a mask ROM, or may be made non-rewritable by software.

A non-contact IC tag or a non-contact IC card becomes active when an electromagnetic wave transmitted from a reader / writer (R / W) terminal is supplied. For this reason, non-contact IC tags and non-contact IC cards that are currently in practical use automatically become active when entering the reach (communication range) of 13.56 MHz electromagnetic waves, and at the same time, non-contact ICs. The tag transmits its own unique number to the R / W terminal. At this time, the non-contact IC tag generates a random number based on its own unique number, cuts several time slots based on the value, and sets the unique number within one of the time slots to the R / W terminal. Send to.
As described above, a method of returning its own unique number to the R / W terminal immediately after receiving an electromagnetic wave from the R / W terminal is called “all response method”.

In the case of this “all response method”, if there are a plurality of non-contact IC tags within the reach of electromagnetic waves, each of them becomes active, and when their own unique numbers are transmitted to the R / W terminals all at once, The R / W terminal side receives a plurality of unique numbers at the same time, causing collisions and making it impossible to identify individual non-contact IC tags.
The frequency of 13.56 MHz is determined by ISO, but it is expected that the number of systems that perform communication between the non-contact IC tag and the R / W terminal using this frequency will increase in the future. In that case, the R / W terminal must clearly distinguish non-contact IC tags used in different systems and eliminate them.

Therefore, even when a plurality of non-contact IC tags are within the communicable range, a system is required that resolves collision, identifies each IC tag, and ensures communication with the R / W terminal.
It is said that the following provisions are made to secure this communication.
In the following, paragraphs 0048 are partial citations from “Information Processing Society of Japan, Homepage Commentary No. 46”. In the following, a non-contact IC card is described as an example, but the same can be considered for a non-contact IC tag.

“2.1 Reader / Writer Talk First Reader Writer Talk First is the principle that the reader / writer is the main and the card always responds in response to the reader / writer's call. The reader / writer talk first Specify the communication method, send a targeted code for each card attribute (application field, etc.), and only the corresponding card is allowed to reply. It always communicates in pairs as a response to a command call from the reader / writer, and does not make independent calls from the card, such as a retransmission request when an error occurs. "

"2.2 Collision prevention function (anti-collision)
Unrecognition is a function for controlling a reply procedure from a card so that a plurality of cards repeatedly reply to the same unique call code at the same time and communication is not disabled. There are the following methods. When multiple cards return different IDs at the same time, the reader / writer detects the collided ID bit position and instructs the communication procedure for the card of each ID. When the card side sends a random number There is a method of generating and responding by sending a corresponding number marker from the reader / writer, a method of returning after waiting for the card to elapse the time corresponding to the random number, and the like. "

  The method of using the information recording medium of the present invention also uses the anti-collision function as described above. In addition to the above, the third method of use is a non-contact method in which the reader / writer 8 detects and communicates. The unique number of the IC chip of the IC tag circuit is immediately detected by the reader / writer 8 and written in the memory of the IC chip of the non-contact IC tag circuit communicated.

  That is, when the information recording medium 2 has the non-contact IC tag circuits 20a, 20b, and 20c and passes under the non-contact reader / writer 8, as shown in FIG. Communicating with the non-contact IC tag circuit 20a that first enters the communicable range, and reads the unique number A of the IC chip. At this time, the unique number X of the IC chip of another information recording medium read earlier may be written into the circuit 20a, but this is used for recognizing that it is not the unique number of the IC chip of the information recording medium 2. Only.

Next, as shown in FIG. 10B, when the non-contact IC tag circuit 20b of the information recording medium 2 passes, the unique number A is written to the circuit and at the same time the unique IC chip of the non-contact IC tag circuit 20b. Read the number B. Further, when the non-contact IC tag circuit 20c of the information recording medium 2 passes, the unique number B is written to the circuit 20c and simultaneously the unique number C of the IC chip of the non-contact IC tag circuit 20c is read.
If such an operation is sequentially performed on each IC chip of a plurality of non-contact IC tag circuits of one information recording medium 2, then the unique number is read from the memory contents of each IC chip of the non-contact IC tag circuit. Thus, the order in which the reader / writer 8 communicates can be analyzed.

[Fourth usage method]
The fourth usage method is the invention according to claim 8 , but a method for acquiring the traveling direction of the adherend (article) to which the information recording medium 2 of the present invention is attached with respect to the non-contact reader / writer 8 is obtained. It is. Basically, the third usage method is used, and the non-contact reader / writer 8 analyzes the unique number recorded on each IC chip afterwards to determine the traveling direction of the adherend (article). To get. Even if it is after the fact, it is possible to carry out analysis immediately after it by computer information processing.

  For example, at the normal conveyance speed of the adherend (article), the reader / writer 8 communicates in the order of the non-contact IC tag circuit that comes within the communicable range, so the non-contact IC in the information recording medium 2 of the present invention. The traveling direction of the adherend (article) attached with the information recording medium 2 with respect to the reader / writer 8 can be examined by analyzing the unique communication number of the tag circuit. Although writing is also performed on the IC chip of the non-contact IC tag circuit that is not below the straight line in the traveling direction, the directionality can be confirmed in principle by writing in the order of approach. In this case, it is not necessary to record substantially simultaneously.

  For this purpose, it is preferable to use an information recording medium in which 2 to 9, preferably 5 to 9, non-contact IC tag circuits are arranged in a linear or matrix form. Even in a linear arrangement, it is possible to identify the direction of one line. However, when the traveling direction is unspecified from the beginning, it is preferable to arrange 5 to 9 non-contact IC tag circuits in a matrix. Note that the direction of travel can be obtained even when the time when the non-contact reader / writer writes is used instead of recording the unique number. In this case, however, the reader / writer needs to have a function for identifying and transmitting the time. Management of the direction of travel of the adherend (article) often has an important significance in eliminating erroneous processing in the manufacturing process of the product or performing appropriate distribution management.

  Next, the manufacturing process of the information recording medium of the present invention will be described. The information recording medium of the present invention can be manufactured by a normal non-contact IC tag manufacturing process, but has a feature that it is commercialized by changing the state of multiple imposition. In the case of manufacturing by photoetching, the arrangement and direction of the non-contact IC tag circuit can be adjusted mainly at the photomask manufacturing stage.

  First, the antenna structures 12 and 22 are manufactured on the base film 3 by processes such as photoetching and printing. In the case of photoetching, a photomask in the form of target information recording media 1 and 2 is prepared. For the base film 3, a base material laminated with aluminum or copper foil is usually used. When the antenna structure is a planar coil shape, the coil wire width is usually formed in the range of about 0.2 mm to 1.0 mm. Such an antenna structure is formed on the surface of the base film 3 according to the number of necessary IC tag circuits. Next, the IC chips 13 and 23 are coupled to both ends t1 and t2 of the antenna structures 12 and 22, respectively. If necessary, a surface substrate 4 made of a plastic film or paper is laminated on the antenna structure surface of the base film 3 to which the IC chips 13 and 23 are bonded. The adhesive layer 6 is provided on the release paper 7 and attached to the surface of the base film 3 opposite to the antenna structure.

<Embodiment related to material>
(1) Base film A wide variety of plastic films can be used. As a plastic film, the following single film or those composite films can be used.
Polyethylene terephthalate (PET), PET-G (terephthalic acid-cyclohexanedimethanol-ethylene glycol copolymer), polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, polycarbonate, polyamide, polyimide, cellulose diacetate, cellulose triacetate, Polystyrene, ABS, polyacrylate, polypropylene, polyethylene, polyurethane, and the like.

(2) Surface substrate A wide variety of plastic films and paper substrates can be used. As the base film, various materials described above can be used as the plastic film, and fine paper, coated paper, craft paper, glassine paper, synthetic paper, latex, melamine-impregnated paper, etc. can be used as the paper substrate. .

(3) Adhesive, pressure-sensitive adhesive In the present specification, the term adhesive refers to various types such as a solvent type, a polymerization type, an ultraviolet curable type, an emulsion type, and a heat-melt type. Shall be included. In either case, the purpose can be achieved by bonding the two materials.
Further, in the present specification, the term “adhesive” refers to an adhesive that keeps an intermediate tack state indefinitely without a significant increase in viscosity.
Various resin compositions such as natural rubber, nitrile rubber, epoxy resin, vinyl acetate emulsion, acrylic, acrylate copolymer, polyvinyl alcohol, phenol resin, etc. Material can be used.

Hereinafter, actual embodiments will be described using examples.
(Production of Information Recording Medium of First Embodiment)
As a base film 3 of the information recording medium 1, a base material obtained by dry laminating a 25 μm-thick aluminum foil on a 38 μm-thick transparent biaxially stretched polyester film is coated with a photosensitive resist, and then two planar coil shapes are used. The photomask having the antenna structures 12a and 12b was exposed and exposed. After exposure and development, photoetching was performed to complete the base film 3 having the non-contact IC tag circuits 10a and 10b as shown in FIG. The outer shape of one planar coil was set to a size of approximately 45 mm × 76 mm.

IC chips 13a and 13b having a planar size of 1.0 mm square and a thickness of 150 μm were attached to both end portions t1 and t2 of both planar coils of the base film 3 by applying heat pressure in a face-down state. Coated paper was laminated as a surface base material 4 through the adhesive layer 5 on the base film 3 surface of the information recording medium 1 on the IC tag circuit 10a, 10b formation side.
Finally, adhesive processing was performed by laminating release paper 7 on the back surface of base film 3 with adhesive layer 6 of 12 μm, and cut to a size of 92 mm × 155 mm to complete information recording medium 1 with release paper.

  Using an IC tag reader / writer (“RCT-200-01” manufactured by Welcat Co., Ltd .; 13.56 MHz) for a non-contact IC tag circuit from a position 8 cm away from the information recording medium 1 of Example 1. As a result, it was confirmed that the same information was recorded on the IC chips 13a and 13b of both the non-contact IC tag circuits 10a and 10b.

(Manufacture of Information Recording Medium of Second Embodiment)
As the base film 3 of the information recording medium 2, a substrate obtained by dry laminating a 25 μm thick aluminum foil on a transparent biaxially stretched polyester film having a thickness of 38 μm is used. The photomask having the antenna structure arranged in a matrix is exposed and exposed. After exposure and development, photo-etching was performed to complete the base film 3 having the non-contact IC tag circuits 20a, 20b, 20c, 20d, 20e, 20f, 20g, 20h, and 20i in the form shown in FIG. In addition, the outer shape of one planar coil was set to a size of approximately 17 mm × 45 mm.

Face down IC chips 23a, 23b, 23c, 23d, 23e, 23f, 23g, 23h, and 23i having a planar size of 1.0 mm square and a thickness of 150 μm on both ends t1 and t2 of each planar coil of the base film 3. In this state, it was applied with heat pressure. Coated paper was laminated as a surface base material 4 through the adhesive layer 5 on the surface of the base film 3 on the non-contact IC tag circuit forming surface side of the base film 3.
Finally, adhesive processing is performed by laminating release paper 7 on the back surface of base film 3 with adhesive layer 6 having a thickness of 12 μm, and the entire size is cut to 140 mm × 140 mm to form information recording medium 2 with release paper. completed.

The information recording medium 2 of Example 2 is attached to an adherend (article), conveyed on a conveyor belt at a speed of 10 cm / sec, and a writing / reading test is performed on each non-contact IC tag circuit from a position 10 cm away. When using an IC tag reader / writer ("RCT-200-01" manufactured by Welcat Co., Ltd .; 13.56 MHz), it is possible to write and read each IC chip of any non-contact IC tag circuit without any trouble. confirmed.
Also, the reader / writer reads the unique number of the IC chip read first, creates a program that records the unique number on the IC chip that communicated next, and when it is executed, it is confirmed that it is read and written appropriately. It was done.

It is a top view which shows the example of 1st Embodiment of the information recording medium of this invention. It is sectional drawing of FIG. It is a top view which shows the other example of 1st Embodiment. It is a top view which shows the various examples of 2nd Embodiment. It is a top view which shows the various examples of 2nd Embodiment. It is a top view which shows the various examples of 2nd Embodiment. It is a top view which shows the various examples of 2nd Embodiment. It is a top view which shows the various examples of 2nd Embodiment. It is a top view which shows the various examples of 2nd Embodiment. It is a figure explaining the usage method of the information recording medium of this invention.

Explanation of symbols

1. Information recording medium (first embodiment)
2. Information recording medium (second embodiment)
3 Base film 4 Surface base material 5 Adhesive layer 6 Adhesive layer 7 Release paper 8 Reader / writer 10a, 10b, 10c, ... Non-contact IC tag circuit 20a, 20b, 20c, ... Non-contact IC tag circuit 12, 12a Antenna structure 22, 22a, 22b, antenna structure 13, 13a, 13b, 13c, IC chip 23, 23a, 23b, 23c, IC chip

Claims (13)

Two independent non-contacts having substantially the same characteristics, having an antenna structure and a non-contact communication function unit coupled to the antenna structure, a control unit, and a memory on one continuous base film surface After the information recording medium in which the IC tag circuits are arranged adjacent to each other is attached to the adherend, reading and writing are performed by the reader / writer, and the same information is recorded in the two non-contact IC tag circuits. A method of using an information recording medium, wherein a unique number of an IC chip read and written immediately by the reader / writer is recorded in an IC chip of a non-contact IC tag circuit written after writing. The information recording medium has directivity with respect to radio waves received and transmitted by the non-contact IC tag circuit, and is arranged in parallel so that the two non-contact IC tag circuits have the same directivity direction. A method of using the information recording medium according to claim 1. The information recording medium has directivity with respect to radio waves received and transmitted by a non-contact IC tag circuit, and the two non-contact IC tag circuits are arranged so as to have directivity directions orthogonal to each other. A method of using the information recording medium according to claim 1. A continuous base film surface having an antenna structure and an IC chip having a non-contact communication function unit coupled to the antenna structure, a control unit, and a memory; An information recording medium in which non-contact IC tag circuits are arranged adjacent to each other is attached to an adherend, and then reading / writing is performed by a reader / writer, and the same information is recorded in three to nine non-contact IC tag circuits. The unique number of the IC chip read and written by the reader / writer immediately before is recorded on the IC chip of the non-contact IC tag circuit written after the first writing. How to use. The information recording medium has directivity with respect to radio waves received and transmitted by a non-contact IC tag circuit, and is arranged in parallel so that all the non-contact IC tag circuits have the same directivity direction. A method of using the information recording medium according to claim 4. The information recording medium has directivity with respect to radio waves received and transmitted by the non-contact IC tag circuit, and is arranged such that the directivity directions between two adjacent non-contact IC tag circuits are orthogonal to each other. 5. The method of using the information recording medium according to claim 4, wherein the information recording medium is used . The information recording medium has directivity with respect to radio waves received and transmitted by a non-contact IC tag circuit, and is arranged so that all non-contact IC tag circuits have different directivity directions. Item 5. A method of using the information recording medium according to Item 4.   A continuous base film surface having an antenna structure and an IC chip having a non-contact communication function unit, a control unit, and a memory coupled to the antenna structure, and having 2 to 9 independent, substantially identical characteristics An information recording medium in which non-contact IC tag circuits are arranged adjacent to each other is attached to an adherend, and then reading / writing is performed by a reader / writer so that the same information is substantially stored in 2 to 9 non-contact IC tag circuits. The IC chip of the non-contact IC tag circuit written after the first writing is recorded, and the unique number of the IC chip read and written by the reader / writer immediately before is recorded. A method of using an information recording medium, characterized in that the traveling direction of the body with respect to the reader / writer is acquired. 9. The method of using an information recording medium according to claim 8, wherein 5 to 9 independent non-contact IC tag circuits having substantially the same characteristics are disposed adjacent to the information recording medium. The information recording medium has directivity with respect to radio waves received and transmitted by a non-contact IC tag circuit, and is arranged in parallel so that all the non-contact IC tag circuits have the same directivity direction. A method of using the information recording medium according to claim 8 or 9. The information recording medium has directivity with respect to radio waves received and transmitted by the non-contact IC tag circuit, and is arranged such that the directivity directions between two adjacent non-contact IC tag circuits are orthogonal to each other. 10. The method of using the information recording medium according to claim 8 or 9, wherein the information recording medium is used. The information recording medium has directivity with respect to radio waves received and transmitted by a non-contact IC tag circuit, and is arranged so that all non-contact IC tag circuits have different directivity directions. Item 10. A method of using the information recording medium according to item 8 or 9. The method of using an information recording medium according to any one of claims 1 to 12 , wherein the antenna structure is a planar wire coil antenna or a planar dipole antenna.

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