JP2018120602A - Rfid medium read/write verification apparatus and read/write verification method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an RFID medium 14 read/write verification apparatus configured to quickly verify whether reading/writing processing of medium data to an RFID medium 14 was normal, to process a large number of RFID media 14 at high speed, to easy deal with when an error occurs in reading/writing processing, and to provide a read/write verification method thereof.SOLUTION: It is focused on that a plurality of device antennas and a verification device antenna are arranged along a transfer path 11 of an RFID medium 14. An RFID medium read/write verification apparatus includes: a data read/write section 3 having a first device 19, second device 20, and third device antenna 21 arranged sequentially in the transfer path 11; and a data verification section 6 having a fourth device antenna 24 arranged downstream of the third device antenna 21. Medium data can be sequentially read and written between the data read/write section 3 and the RFID medium 14 by wireless data communication. The data verification section 6 can read the medium data from the RFID medium 14 to be verified.SELECTED DRAWING: Figure 1

Description

    The present invention relates to an RFID medium read / write verification apparatus and a read / write verification method thereof, and more particularly to an RFID medium read / write verification apparatus to which an RFID (Radio Frequency Identification) technology is applied and a read / write verification method thereof. Is.

Conventionally, an RFID medium such as an RFID tag or an RFID label having an IC chip and an RFID antenna and capable of wireless data communication is used for various media data between a device antenna in a reader / writer (RFID medium reader / writer). By performing read processing and write processing, they are used in various management systems.
The RFID medium is transported on a transport path as a belt-like continuous body including a plurality of sheets or as a sheet-shaped member including a plurality of sheets, and the medium data is read and written at the site of the device antenna (wireless data communication). ), A large number of RFID media can be processed at high speed.

However, when trying to process a large number of RFID media at a high speed, it is necessary to ensure that the handling when an error occurs in the above read / write process can be executed quickly, properly and reliably. It is.
That is, it is required to quickly verify whether or not the reading / writing process is normal, and to minimize the occurrence of trouble due to an error in the event of an error.

Japanese Patent Laid-Open No. 9-254501

    The present invention has been considered in view of the above-described problems, and an RFID medium read / write verification apparatus capable of quickly verifying whether or not a medium data read / write process on an RFID medium is normal and its reading / writing. It is an object to provide a verification method.

    It is another object of the present invention to provide an RFID medium read / write verification apparatus and a read / write verification method thereof capable of processing a large number of RFID media at high speed.

    It is another object of the present invention to provide an RFID medium read / write verification apparatus and a read / write verification method thereof that can be easily handled when an error occurs in the read / write processing of medium data on the RFID medium.

    That is, the present invention focuses on providing a plurality of device antennas along the transfer path of the RFID medium, and providing a device antenna (data verification unit) for verifying media data. An RFID medium read / write verification apparatus having an IC chip and an RFID antenna and capable of wireless data communication, wherein the RFID medium can be transferred along the transfer path from the upstream side to the downstream side. A data reading / writing unit having a first device antenna, a second device antenna, and a third device antenna sequentially provided on the transfer path from the upstream side to the downstream side, and the downstream side of the third device antenna And a data verification unit having a fourth device antenna provided on the downstream side of the printing unit, and the first device antenna and the second device. It is possible to sequentially execute reading and writing of medium data by the wireless data communication while transferring the RFID medium to the transfer path between the antenna and the third device antenna and the RFID medium, and the printing unit In the RFID, the print data corresponding to the medium data is printed on the RFID medium, and the medium data can be read from the RFID medium and verified by the fourth device antenna. It is a medium read / write verification device.

    A second invention is an RFID medium read / write verification method having an IC chip and an RFID antenna and capable of wireless data communication, wherein the RFID medium is moved along the transfer path from the upstream side to the downstream side. A data reading / writing unit having a first device antenna, a second device antenna, and a third device antenna provided in this transfer path sequentially from the upstream side to the downstream side, and the RFID medium Then, while transferring the RFID medium to the transfer path, reading and writing of the medium data by the wireless data communication are sequentially executed, and the medium data is stored in the printing unit provided on the downstream side of the third device antenna. In the data verification unit having the fourth device antenna provided on the downstream side of the printing unit while printing the corresponding print data on the RFID medium, Serial is a verification method or writes the RFID medium and performs the verification by reading the media data from the RFID medium.

    The RFID medium can be supplied to the transfer path in a form arranged in a plurality of rows along the width direction of the transfer path.

    The RFID medium can be supplied to the transfer path in a form in which a plurality of the RFID media are arranged for each unit sheet.

    The first device antenna may be capable of reading the unique identification number of the RFID medium.

    The second device antenna may be capable of writing the medium data to the RFID medium.

    The third device antenna may be capable of writing the medium data to the RFID medium.

    The fourth device antenna may be capable of reading the medium data written on the RFID medium for each unit sheet.

    The first device antenna and the second device antenna may be provided in plurality in accordance with the plurality of columns of the RFID medium.

    The third device antenna and the fourth device antenna may be provided as a single antenna capable of the wireless data communication with each of the plurality of rows of the RFID media.

    An image reading unit capable of reading the print data by the printing unit may be provided between the printing unit and the fourth device antenna.

    The print data by the printing unit can include medium display data on the RFID medium that displays each of the RFID media in a visually or optically identifiable manner.

    The RFID medium is configured such that a plurality of the RFID media are arranged for each unit sheet, and this can be supplied to the transfer path, and the print data by the printing unit is the unit sheet of the RFID medium. Sheet data that can be specified can be included.

    The RFID medium is a form in which a plurality of RFID media are collected for each unit sheet, and can be supplied to the transfer path, and the image reading unit can display the medium display data on the RFID medium by the printing unit. The unit sheet of the RFID medium can be read.

    A die cutting part can be provided on the downstream side of the image reading part.

    When the unique identification number of the RFID medium is not normally read by the first device antenna, the die cutting unit can perform die cutting that can identify the RFID medium.

    The die cutting unit may perform die cutting that can identify the RFID medium when the medium data is not normally written to the RFID medium by the second device antenna or the third device antenna. it can.

    In the RFID medium read / write verification apparatus and the read / write verification method according to the present invention, a plurality of apparatus antennas (first, second and third apparatus antennas) for reading and writing medium data along the transfer path of the RFID medium. ) And a device antenna for verifying the media data (fourth device antenna), so that the read / write processing of the media data as well as the read / write processing of the media data was normal in the transfer path of the RFID medium. It is possible to quickly verify whether or not, and to process a large number of RFID media at high speed.

    In particular, according to the RFID medium read / write verification device of the first invention, the first device antenna, the second device antenna, and the third device sequentially provided from the upstream side to the downstream side in the RFID medium transfer path. A transfer path between the first device antenna, the second device antenna, or the third device antenna, and the RFID medium. The medium can be read and written sequentially by wireless data communication while the RFID medium is transferred to the medium, and the medium data can be read and verified by the fourth device antenna. Data can be read and written at a higher speed and more reliably, and an error can be dealt with immediately.

    In particular, according to the RFID medium read / write verification method of the second invention, the first device antenna, the second device antenna, or the third device antenna provided in this transfer path sequentially from the upstream side to the downstream side. In the fourth device antenna provided on the downstream side of the printing unit, the medium can be sequentially read and written by wireless data communication while the RFID medium is transferred to and from the RFID medium. Since the data is read and verified, the medium data to the RFID medium can be read and written more reliably and at high speed, and an error can be dealt with immediately.

1 is a schematic side view of an RFID medium read / write verification apparatus 1 according to an embodiment of the present invention. FIG. 2 is a schematic plan view of the RFID medium read / write verification apparatus 1. 2 is a flowchart of a method for verifying reading / writing of the RFID medium 14. FIG.

    In the present invention, a plurality of device antennas for reading and writing media data are provided along the transfer path of the RFID medium, and a device antenna for verifying the media data is provided. Thus, an RFID medium read / write verification apparatus and its read / write verification method capable of processing a large number of RFID media at high speed have been realized.

Next, an RFID medium read / write verification apparatus 1 and its read / write verification method according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic side view of an RFID medium read / write verification apparatus 1, and FIG. 2 is a schematic plan view of the RFID medium read / write verification apparatus 1. The RFID medium read / write verification apparatus 1 includes a supply unit 2. A data reading / writing unit 3, a printing unit 4, an image reading unit 5, a data verification unit 6, a die cutting unit 7, a stack unit 8, and a control unit 9.

The supply unit 2 holds the RFID medium continuous paper 10 in the form of fan hold paper in a folded and stacked state, and allows the RFID medium continuous body 10 to be fed out in a strip shape onto the transfer path 11 in the reading / writing verification apparatus 1.
The RFID medium continuum 10 has perforations 13 formed in the sheet body 12 at predetermined intervals and can be separated as unit sheets 10A. Each unit sheet 10A has a plurality of sheets (in the example shown in FIG. 2, 10 horizontal rows). , RFID media 14 in a total of 30 vertical columns) are arranged.
In addition, transfer holes 15 are formed at predetermined pitches on both the left and right edges of the sheet body 12, and position detection marks (not shown) are printed in advance on the back side thereof.

As shown in an enlarged plan view of a part of FIG. 2, the RFID medium 14 has an IC chip 17 provided at a substantially central position on the medium film 16 and a band of UHF (for example, UHF) ( RFID antenna 18 used at 300 MHz to 3 GHz), and wireless data communication (data read / write processing) is possible with data read / write unit 3.
In addition, by appropriately selecting and designing the IC chip and the RFID antenna, it can be used in other frequency bands such as a microwave (1 to 30 GHz) or an HF band (3 MHz to 30 MHz).

    In the example shown in the figure, the RFID medium 14 is arranged in a united arrangement for each unit sheet 10 </ b> A and can be supplied to the transfer path 11. However, the perforation 13 is formed in the RFID medium continuous body 10. (Ie, the RFID medium 14 is not the unit sheet 10A), but in the form of a continuous belt-like member that is arranged in a plurality of rows along the width direction of the transfer path 11, or as an independent single-sheet sheet. Can also be supplied to the transfer path 11.

    In the transfer path 11, a transfer mechanism such as a sprocket that engages with the transfer hole 15 and a position detection mark sensor (both not shown) are provided, and the RFID medium 14 (RFID medium continuum 10) is formed at a predetermined speed. ) Can be transferred along the transfer path 11 from the upstream side toward the downstream side.

    The data read / write unit 3 includes a first device antenna 19, a second device antenna 20, and a third device antenna 21 that are sequentially provided from the upstream side to the downstream side in the transfer path 11. Wireless data communication with the RFID medium 14 is enabled by a reader / writer (not shown) connected to each.

The first device antenna 19 can read the unique identification number given in the manufacturing stage of each RFID medium 14.
The second device antenna 20 can write various article information or product information (not shown) to which the RFID medium 14 is attached and other necessary medium data to the RFID medium 14 (IC chip 17).
Similarly, the third device antenna 21 can write the medium data to the RFID medium 14 and performs the writing operation again when the writing process by the second device antenna 20 is not normal.

The first device antenna 19 and the second device antenna 20 are each provided with a plurality (ten in the illustrated example) corresponding to a plurality of columns of the RFID medium 14. However, as shown in FIG. 2, the first device antennas 19 and the second device antennas 20 are arranged so as to be slightly shifted alternately on the upstream side and the downstream side, respectively, in the transfer direction of the RFID medium continuous body 10. (So-called staggered arrangement) makes it possible to arrange these in a limited space in a compact manner.
The third device antenna 21 is provided as a single antenna capable of wireless data communication with each of the RFID media 14 by covering a plurality of rows of RFID media 14 from above in the figure in the entire width direction. Yes.
Thus, the RFID medium 14 is being transferred to the transfer path 11 between the first device antenna 19, the second device antenna 20 or the third device antenna 21, and the RFID medium 14 in the data read / write unit 3. The reading and writing of the medium data by wireless data communication can be executed sequentially.

The printing unit 4 is provided on the downstream side of the third device antenna 21, and a printer using an arbitrary printing method having a predetermined printing speed, for example, a laser printer 22 (or an ink jet printer) can be employed.
In the printing unit 4, print data corresponding to the medium data stored in the IC chip 17 in the RFID medium continuous body 10 is printed on the RFID medium 14.
The print data by the printing unit 4 includes medium display data on the RFID medium 14 that displays each of the RFID media 14 visually or in a bar code or two-dimensional code so as to be optically identifiable.
Furthermore, when a plurality of RFID media 14 are collected for each unit sheet 10A and can be supplied to the reading / writing verification apparatus 1 (transfer path 11), the printing data by the printing unit 4 is RFID. Sheet data (for example, sheet serial number, “0003” is illustrated in FIG. 2 as an example) that can specify each unit sheet 10A of the medium 14 can be included.

The image reading unit 5 is provided on the downstream side of the printing unit 4 and on the upstream side of the data verification unit 6. The image reading unit 5 employs an arbitrary reading device such as a CCD camera 23, and print data by the printing unit 4. Can be read.
That is, the CCD camera 23 can read print data (medium display data) on the RFID medium 14 and print data (sheet data) on the sheet main body 12 of the RFID medium continuous body 10.
The CCD camera 23 recognizes and manages the medium display data and medium data in association with the sheet data if the sheet data (sheet serial number) of the print data by the printing unit 4 can be read at a minimum. Is possible.
Further, when the RFID medium 14 is collected for each unit sheet 10A (sheet main body 12) and can be supplied to the reading / writing verification apparatus 1 (transfer path 11), the image reading unit 5 is configured as an RFID. If a plurality of CCD cameras 23 (virtual lines in the figure) are provided for the number of columns of the medium 14 (10 columns in the width direction of the RFID medium continuous body 10 in the illustrated example), the RFID medium 14 by the printing unit 4 is provided. The medium display data can be directly read for each unit sheet 10A of the RFID medium 14, and it is also possible to verify whether the print data (medium display data) has been printed normally.

The data verification unit 6 includes a fourth device antenna 24. The fourth device antenna 24 is provided as a single antenna capable of wireless data communication with each of the plurality of rows of RFID media 14. Yes.
The fourth device antenna 24 can read the medium data written in the RFID medium 14 for each unit sheet 10A.
Therefore, the fourth device antenna 24 reads the medium data written on the sheet main body 12, and verifies whether the read medium data matches the medium data to be originally read (that is, the medium data Verification of whether the writing process is normal).

The die cutting unit 7 is provided on the downstream side of the image reading unit 5.
The die cutting unit 7 is provided with a plurality of cut forming tools 25 corresponding to a plurality of rows of the RFID medium 14 in the RFID medium continuous body 10. For example, print data or a medium can be formed by an arbitrary cut forming claw (not shown). By cutting the edge portion of the error medium (RFID medium 14) in which the data read / write process is not normal, an upright piece 26 standing from the surface of the RFID medium 14 is formed. The shape and size of the upright piece 26 are arbitrary, and can be formed as a punch hole instead of the upright piece 26.
Specifically, when the reading process of the unique identification number of the RFID medium 14 by the first device antenna 19 is not normal, the die cutting unit 7 performs the die cutting that can identify the RFID medium 14.
Furthermore, when the medium data writing process to the RFID medium 14 by the second device antenna 20 or the third device antenna 21 is not normal, the die cutting unit 7 performs die cutting that can identify the RFID medium 14. .

The stack unit 8 stacks the RFID medium continuums 10 that have been processed in the data reading / writing unit 3, the printing unit 4, the image reading unit 5, the data verification unit 6, and the die cutting unit 7 in a fan-hold form.
The RFID medium continuum 10 provided with the print data and medium data issued to the stack unit 8 is cut into individual RFID media 14, and the RFID media 14 is attached to a predetermined product or managed article.

    The control unit 9 includes an operation display 27 and a necessary control circuit 28, and controls the data reading / writing unit 3, the printing unit 4, the image reading unit 5, the data verification unit 6, and the die cutting unit 7, respectively.

A method for verifying reading / writing of the RFID medium 14 by the RFID medium reading / writing verification apparatus 1 having the above configuration will be described with reference to FIG.
FIG. 3 is a flowchart of a method for verifying reading / writing of the RFID medium 14 by the RFID medium reading / writing verification apparatus 1. In step S 1, the RFID medium continuum 10 is transferred from the supply unit 2 to the reading / writing verification apparatus 1. Transfer to path 11 begins.
In step S2, it is determined whether the RFID medium continuum 10 has reached the wireless communicable area in the data read / write unit 3. If the wireless medium communicable area is reached, first, in step S3, the first device antenna 19 is connected to the RFID medium. 14 unique identification numbers are read.
In step S4, it is determined whether or not the reading is normal. If the reading is not normal, error printing (for example, “error”) is performed by the printing unit 4 on the surface of the RFID medium 14 whose unique identification number could not be read in step S5. I do.

    If it is determined in step S4 that the reading of the unique identification number of the RFID medium 14 is normal, medium data is written to the RFID medium 14 (IC chip 17) by the second device antenna 20 in step S6, and step S7 is performed. In step S8, medium data is written again by the third device antenna 21. In step S8, the medium data is written again.

In the next step S9, medium display data is printed by the printing unit 4 (laser printer 22). For example, when the RFID medium 14 is attached to a clothing item (not shown), the size of clothes such as arbitrary letters, numbers, and designs, and other necessary visible product data, and further, a barcode, a two-dimensional code, etc. Print optically readable data.
Further, sheet data (for example, a sheet serial number, “0003” is illustrated as an example in FIG. 2) is printed on each unit sheet 10A (sheet body 12) of the RFID medium continuous body 10.

Further, in step S10, the medium data for each unit sheet 10A of the RFID medium continuous body 10 is read.
That is, the CCD camera 23 of the image reading unit 5 reads and recognizes the sheet serial number (sheet data) by the printing unit 4, and writes each RFID medium 14 of the RFID medium continuous body 10 managed by this sheet serial number. Read the media data.
Next, in step S11, the medium data from the RFID medium 14 is read from the RFID medium 14 by the fourth device antenna 24 in the data verification unit 6, and the medium data of each RFID medium 14 of the RFID medium continuous body 10 managed by the sheet serial number. And whether the read medium data matches.
If the written medium data and the read medium data do not coincide with each other, in step S12, the writing process is not normal and the transfer of the RFID medium reading / writing verification apparatus 1 is stopped, which is necessary for the operation display 27. An error warning is given and necessary countermeasures can be instructed. For example, the RFID medium continuum 10 is removed from the transfer path 11 of the read / write verification apparatus 1 and transferred again, and the read / write process as described above is performed again, or the RFID medium 14 in which the normal write process has not been performed. The unit sheet 10A including the above is cut off at the perforation 13.

If the data match in step S11, it is determined in step S13 whether or not there is a reading failure of the unique identification number of the RFID medium 14 by the first device antenna 19. If there is a failure, in step S14, A die-cutting operation is performed on the RFID medium 14 by the notch forming tool 25, and the standing piece 26 is formed on the RFID medium 14, thereby clearly indicating that the RFID medium 14 cannot be used.
If there is no reading failure of the unique identification number, it is determined in step S15 whether there is a writing failure of the medium data based on the data matching determination result in step S13. A die-cutting operation is performed on the RFID medium 14 by the notch forming tool 25, and the standing piece 26 is formed on the RFID medium 14, thereby clearly indicating that the RFID medium 14 cannot be used. If there is no defect, this flow is terminated.

    Thus, the RFID medium 14 is transported along the transport path 11 from the upstream side to the downstream side, and the first device antenna 19 and the second device sequentially provided in the transport path 11 from the upstream side to the downstream side. The reading and writing of the medium data by wireless data communication is sequentially executed while the RFID medium 14 is being transferred to the transfer path 11 between the device antenna 20 or the third device antenna 21 and the RFID medium 14. 4, the print data corresponding to the medium data is printed on the RFID medium 14, the print data (medium display data, sheet data) is read by the image reading unit 5, and the fourth device antenna 24 in the data verification unit 6 is read. In FIG. 5, the medium data is read and verified, and the defective RFID medium 14 in the die cutting unit 7 is checked. The standing piece 26 is formed, and easily separated.

Therefore, along with the transfer of the RFID medium continuum 10 in the transfer path 11, the medium data can be read / written and the print data can be displayed, and verification by the image reading unit 5 and the data verification unit 6 can be executed. It is possible to immediately and accurately determine that the occurrence has occurred.
Further, by supplying and processing the RFID medium continuous body 10 as a plurality of unit sheets 10A in which a large number of RFID media 14 are arranged, high-speed and large-scale processing can be performed, and this unit can be used when an error occurs. It is possible to cope with each sheet 10A.

1 RFID medium read / write verification device (Example, FIG. 1, FIG. 2)
DESCRIPTION OF SYMBOLS 2 Supply part 3 Data reading / writing part 4 Printing part 5 Image reading part 6 Data verification part 7 Die cutting part 8 Stack part 9 Control part 10 RFID medium continuous body 10A Unit sheet 11 of the RFID medium continuous body 10 Transfer path 12 Sheet main body 13 Perforation 14 RFID medium 15 Transfer hole 16 Medium film 17 IC chip 18 RFID antenna 19 First device antenna 20 Second device antenna 21 Third device antenna 22 Laser printer 23 CCD camera 24 Fourth antenna 25 Cutting formation Tool 26 Standing piece 27 Operation display 28 Control circuit

Claims (17)

An RFID medium read / write verification apparatus having an IC chip and an RFID antenna and capable of wireless data communication,
The RFID medium can be transferred along the transfer path from the upstream side toward the downstream side, and
A data reading / writing unit having a first device antenna, a second device antenna, and a third device antenna, which are sequentially provided on the transfer path from the upstream side toward the downstream side;
A printing unit provided on the downstream side of the third device antenna;
A data verification unit having a fourth device antenna provided on the downstream side of the printing unit,
While transferring the RFID medium to the transfer path between the first apparatus antenna, the second apparatus antenna, the third apparatus antenna, and the RFID medium, the medium data by the wireless data communication is transferred. Read and write can be executed sequentially,
In the printing unit, the print data corresponding to the medium data is printed on the RFID medium,
The RFID medium read / write verification apparatus, wherein the fourth apparatus antenna is capable of reading the medium data from the RFID medium and verifying the medium data. 2. The RFID medium read / write verification apparatus according to claim 1, wherein the RFID medium is arranged in a plurality of rows along the width direction of the transfer path and can be supplied to the transfer path. 3. The RFID medium read / write verification apparatus according to claim 1, wherein a plurality of the RFID media are arranged in a unit sheet and can be supplied to the transfer path. 4. The RFID medium read / write verification apparatus according to claim 1, wherein the first apparatus antenna is capable of reading a unique identification number of the RFID medium. 5. The RFID medium read / write verification apparatus according to claim 1, wherein the second apparatus antenna is capable of writing the medium data to the RFID medium. 6. The RFID medium read / write verification apparatus according to claim 1, wherein the third apparatus antenna is capable of writing the medium data to the RFID medium. 4. The RFID medium read / write verification apparatus according to claim 3, wherein the fourth apparatus antenna is capable of reading the medium data written on the RFID medium for each unit sheet. 3. The RFID medium read / write verification according to claim 2, wherein a plurality of the first device antenna and the second device antenna are provided in accordance with the plurality of columns of the RFID medium. apparatus. The third device antenna and the fourth device antenna are provided as a single antenna capable of the wireless data communication with each of the plurality of columns of the RFID media. Item 3. An RFID medium read / write verification device according to Item 2. 10. The RFID according to claim 1, further comprising an image reading unit capable of reading the print data by the printing unit between the printing unit and the fourth device antenna. Media read / write verification device. 11. The print data by the printing unit includes medium display data on the RFID medium that displays each RFID medium visually or optically in an identifiable manner. An RFID medium read / write verification device according to claim. The RFID medium is a form in which a plurality of the RFID media are arranged for each unit sheet, and this can be supplied to the transfer path,
12. The RFID medium read / write verification apparatus according to claim 1, wherein the print data by the printing unit includes sheet data that can specify each of the unit sheets of the RFID medium. The RFID medium is a form in which a plurality of RFID media are collected for each unit sheet, and this can be supplied to the transfer path,
12. The RFID medium read / write verification according to claim 11, wherein the image reading unit is capable of reading the medium display data on the RFID medium by the printing unit for each unit sheet of the RFID medium. apparatus. The RFID medium read / write verification apparatus according to claim 10, wherein a die cutting unit is provided on a downstream side of the image reading unit. 15. The die-cutting unit performs die-cutting capable of specifying the RFID medium when reading of the unique identification number of the RFID medium by the first device antenna is not normal. RFID medium read / write verification device. The die cutting unit performs die cutting capable of specifying the RFID medium when the writing of the medium data to the RFID medium by the second device antenna or the third device antenna is not normal. The RFID medium read / write verification device according to claim 14 or 15, characterized in that: An RFID medium read / write verification method having an IC chip and an RFID antenna and capable of wireless data communication,
Transporting said RFID medium along its transport path from upstream to downstream,
The transfer between the RFID medium and the data read / write unit having the first device antenna, the second device antenna, and the third device antenna provided in this transfer path sequentially from the upstream side to the downstream side Carrying out reading and writing of the media data by the wireless data communication sequentially while transferring the RFID medium to the road,
In the printing unit provided on the downstream side of the third device antenna, the print data corresponding to the medium data is printed on the RFID medium, and
An RFID medium read / write verification method comprising: a data verification unit having a fourth device antenna provided on a downstream side of the printing unit; and reading the medium data from the RFID medium and performing verification.

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