JP5321507B2 - Reading apparatus and reading system - Google Patents

Description

  The present invention relates to a reading apparatus and a reading system.

  Currently, RFID tags are used to manage various items. As a management method using RFID, for example, an RFID tag is attached to an article in the management target area, and article information is recorded on the RFID tag, and settlement is performed at the time of purchasing a product using the article information. Or monitoring RFID tags attached to articles to prevent unauthorized carrying.

JP 2008-299422 A

  By the way, when management is performed by attaching an RFID tag to an article as described above, there are cases where management based on other information should be performed in combination with this. For example, when managing a plurality of articles with RFID tags, it is often required to accurately manage the number of these articles. However, in the RFID system, the number of RFID tags at the time of reading can generally be grasped. However, whether or not the number is a correct value cannot be determined without some reference information (comparison information). Therefore, when performing such number management, for example, the correct number information is separately prepared by some method, and the number of tags actually read and the separately prepared number information are compared during the number inspection. Must be used.

  When performing the number management as described above, for example, if the correct number information (reference information) is recorded in an information code or the like and placed near the RFID tag, it can be easily used for the number inspection. Thus, it is possible to determine whether or not the actual reading result is correct based on the number information (reference information).

  However, there is a concern that such reference information such as the number information may be misused due to tampering or the like, and in many cases should not be easily obtained by a third party. For example, when managing the number of expensive items stored in a large number of storage boxes, if the correct number information is recorded in advance in the information code, this information code can be easily read by a third party and the recorded contents May be perceived as the number information in the box. In some cases, a new code may be created with the number information altered. Due to such problems, there is a demand for a configuration in which a third party cannot easily acquire information serving as a reference for comparing the reading results.

The invention of claim 1 has a public area and a private area in which encrypted data encrypted based on an encryption key is recorded, and a linkage identifier and a secret identifier are located at a position other than the private area. An imaging means capable of imaging a partially private code recorded;
Decryption key storage means capable of storing a decryption key corresponding to the encryption key;
When the partially private code is imaged by the imaging means, the data in the public area is decrypted, the secret identifier is read, and the decryption key is stored in the decryption key storage means A decryption that decrypts the data in the private area as a condition and outputs the decryption result of the area in which the unencrypted data is recorded when the secret identifier cannot be read from the information code captured by the imaging means Means,
Wireless reading means for reading a wireless communication medium by wireless communication;
A reading device comprising:
The wireless reading means reads the wireless communication medium in a communicable area on the condition that the cooperation identifier is decoded by the decoding means, and when the cooperation identifier is not decoded by the decoding means, It is a configuration that does not read,
Further, a comparison means for comparing the reading result of the wireless communication medium by the wireless reading means and the decoding result of the non-public area by the decoding means;
Output means for outputting a comparison result by the comparison means;
Is provided.

  The invention of claim 1 has a public area and a private area in which encrypted data encrypted based on an encryption key is recorded, and a part of the public area in which predetermined information is recorded Data in the public area when the partial private code is imaged by the imaging means capable of imaging the code, the decryption key storage means capable of storing the decryption key corresponding to the encryption key, and the imaging means And decrypting means for decrypting the data in the private area on the condition that the decryption key is stored in the decryption key storage means, and a wireless reading means for reading the wireless communication medium by wireless communication The wireless reading unit is configured to read the predetermined information recorded in the public area on the condition that the predetermined unit is decoded by the decoding unit. Comparing with the comparison means, the comparison means for comparing the reading result of the wireless communication medium by the wireless reading means and the decoding result of the non-public area by the decoding means And an output means for outputting the comparison result.

  According to a second aspect of the present invention, in the reading device according to the first aspect, the partial private code further includes number information recorded in the private area, and the comparing means includes the private information. The number information recorded in the area and the number of the wireless communication media read by the wireless reading means perform a matching determination as to whether or not a predetermined matching condition is satisfied, and the output means performs the comparison A result of the coincidence determination by the means is output.

  According to a third aspect of the present invention, in the reading device according to the first aspect, the wireless communication medium includes a recording unit that is attached to an article and records information about the article, and the partially private code. Is attached to the storage means for storing the article, and at least article information is recorded in the non-public area, and the comparison means includes the article information recorded in the non-public area, It is judged whether or not the information related to the article read by the wireless reading means has a predetermined correspondence relationship, and the output means outputs the result of the comparison judgment by the comparing means. Yes.

  According to a fourth aspect of the present invention, in the reading device according to any one of the first to third aspects, an access area that can be accessed by a user, and a non-access area that is restricted by the user When the decryption means decrypts the predetermined information recorded in the public area, the decryption result of the private area is written to the non-access area, and the comparison means The decryption result of the non-public area written in the non-access area is compared with the read result of the wireless communication medium by the wireless reading means.

  According to a fifth aspect of the present invention, in the reading device according to the fourth aspect, the comparison unit further compares the read result of the wireless communication medium with the decryption result of the non-public area, and then sets the non-access area. An erasing unit for erasing the decryption result of the written private area is provided.

The invention of claim 6 has a public area and a private area in which encrypted data encrypted based on the encryption key is recorded, and a linkage identifier and a secret identifier are located at a position other than the private area. A partially private code that is recorded,
A reader capable of reading the partially private code;
A reading system comprising:
The reader is
Imaging means capable of imaging the partially private code;
Decryption key storage means capable of storing a decryption key corresponding to the encryption key;
When the partially private code is imaged by the imaging means, the data in the public area is decrypted, the secret identifier is read, and the decryption key is stored in the decryption key storage means Decrypting means for decrypting the data in the private area and outputting the decryption result of the area in which the unencrypted data is recorded when the secret identifier cannot be read from the information code imaged by the imaging means When,
The wireless communication medium in the communicable area is read on the condition that the cooperation identifier is decoded by the decoding means, and the wireless communication medium is not read when the cooperation identifier is not decoded by the decoding means. Wireless reading means;
Comparing means for comparing the reading result of the wireless communication medium by the wireless reading means with the decoding result of the private area by the decoding means;
Output means for outputting a comparison result by the comparison means;
It is characterized by having.

In the invention of claim 1, the wireless reading means is configured to read the wireless communication medium in the communicable area on condition that the predetermined information recorded in the public area is decoded by the decoding means. In this way, by recording predetermined information in the public area, code reading and wireless communication medium reading can be linked to each other, so that complicated operations and processing delays can be minimized and wireless reading can be performed smoothly. Easy to migrate.
In addition, a comparison unit that compares the reading result of the wireless communication medium by the wireless reading unit with the decoding result of the non-public area by the decoding unit and an output unit that outputs the comparison result by the comparing unit are provided. The reading result of the communication medium can be easily and appropriately determined based on a standard prepared in advance, and furthermore, information used as a criterion for the determination is recorded in a secret area in an encrypted state. It is extremely difficult for a third party to obtain this information.

  The invention of claim 2 is intended for reading a partially private code in which the number information is recorded in the non-public area, and the comparing means is read by the number information recorded in the non-public area and the wireless reading means. It is determined whether or not the number of wireless communication media satisfies a predetermined matching condition. The output means outputs the result of the coincidence determination by the comparison means. In this way, it is possible to accurately determine whether or not the actual read number is appropriate based on the number information prepared in advance. Furthermore, since the number information is recorded in a secret area in an encrypted state, it is possible to prevent a situation in which the information is read by a third party, and the actual read number of the wireless communication medium is always accurate. It becomes easy to judge based on the standard.

In the invention of claim 3, a wireless communication medium having a recording unit that is attached to an article and records information about the article is a communication target, attached to a storage unit that stores the article, and at least article information in a non-public area. Is a partially private code that is recorded. The comparison means compares and determines whether or not the article information recorded in the non-public area and the information related to the article read by the wireless reading means are in a predetermined correspondence relationship, and the output means is determined by the comparison means. The result of comparison judgment is output.
In this way, it is possible to determine whether or not the article accommodated in the accommodation means is appropriate in light of reference information prepared in advance (article information recorded in a non-public area). Such a determination can be made from outside the storage means. In addition, since the article information is recorded in a secret area in an encrypted state, it is possible to effectively prevent a situation where the article information is grasped or altered by a third party.

  According to another aspect of the present invention, a memory including an access area that can be accessed by a user and a non-access area that is restricted by the user is provided, and the decrypting means stores predetermined information recorded in the public area. When decrypted, the decryption result of the non-public area is written in the non-access area, and the comparison means compares the decryption result of the non-public area written in the non-access area with the read result of the wireless communication medium by the wireless reading means. doing. In this way, since the decryption result of the private area is processed in the non-access area, it is possible to prevent information recorded in the private area from being indirectly leaked through the reading device.

  The invention of claim 5 is provided with erasing means for erasing the decryption result of the private area written in the non-access area after the comparison means compares the read result of the wireless communication medium with the decryption result of the private area. It has been. In this way, leakage of information recorded in the non-public area can be prevented more reliably.

  According to the invention of claim 6, a reading system having the same effect as that of claim 1 can be realized.

FIG. 1 is an explanatory diagram schematically illustrating a reading system according to the first embodiment. FIG. 2 is a block diagram illustrating an electrical configuration of a reading device used in the reading system of FIG. 3A is a block diagram illustrating a wireless reader unit in the reading device of FIG. 2, and FIG. 3B is a block diagram illustrating an information code reading unit in the reading device of FIG. FIG. 4 is a block diagram illustrating an electrical configuration of the wireless tag. FIG. 5 is an explanatory diagram conceptually illustrating the code configuration of a partially private code used in the reading system of FIG. FIG. 6A is an explanatory diagram illustrating the data configuration of the partially private code of FIG. 5, and FIG. 6B illustrates the public data recorded in the public area of the partially private code. FIG. 6C is an explanatory diagram illustrating cipher data recorded in the private area of the partially private code. FIG. 7 is a flowchart illustrating the flow of a reading process performed by the reading device. FIG. 8 is an explanatory diagram conceptually illustrating the configuration in the memory of the reading device. FIG. 9A is an explanatory diagram conceptually showing record information recorded in each wireless tag, and FIG. 9B is an explanation conceptually showing secret data recorded in a secret area. FIG.

[First embodiment]
Hereinafter, a first embodiment in which a reading apparatus and a reading system of the present invention are embodied will be described with reference to the drawings.
(Overall configuration of reading system)
First, the overall configuration of the reading system will be outlined with reference to FIGS. FIG. 1 is an explanatory diagram schematically illustrating a reading system according to the first embodiment. FIG. 2 is a block diagram illustrating an electrical configuration of a reading device used in the reading system of FIG. 3A is a block diagram illustrating a wireless reader unit in the reading device of FIG. 2, and FIG. 3B is a block diagram illustrating an information code reading unit in the reading device of FIG. FIG. 4 is a block diagram illustrating an electrical configuration of the wireless tag.

  As shown in FIG. 1, the reading system 1 according to the present embodiment is mainly composed of a reading device 2, a partly private code C, and a wireless tag 50, and the reading device 2 is attached to the reading object R. The wireless tag 50 attached to the partly private code C and the article is read.

  The reading device 2 is configured as a portable information terminal that is carried by a user and used in various places, and functions as an information code reader that reads an information code such as a barcode or a two-dimensional code, and a wireless that reads a wireless tag. It has a function as a tag reader and can be read in two ways.

  As shown in FIG. 2, the reading device 2 includes a control unit 10 that performs overall control. The control unit 10 includes a memory 11, a key operation unit 12, a display unit 13, an external interface 14, and a wireless reader unit. 20, an information code reading unit 30, a wireless communication unit 40, and the like are connected.

  The control unit 10 is composed mainly of a microcomputer, has a CPU, a system bus, an input / output interface, and the like, and functions as an information processing device together with the memory 11. The key operation unit 12 includes a plurality of keys, and is configured to give an operation signal to the control unit 10 according to a user's key operation. The control unit 10 receives an operation signal from the key operation unit 12. When received, it is configured to perform an operation according to the operation signal. The display unit 13 is configured by, for example, a liquid crystal display, and the display content is controlled by the control unit 10. The external interface 14 is configured as an interface for performing data communication (for example, serial communication via a cable) with the outside (for example, a host device), and cooperates with the control unit 10. It is configured to perform communication processing. In addition, the reading device 2 is provided with a battery 15 and a power supply unit 16 as power sources, and power is supplied to the control unit 10 and various electric components by these.

  The wireless reader unit 20 communicates with the wireless tag 50 in cooperation with the antenna 25 and the control unit 10 to read data stored in the wireless tag 50 or write data to the wireless tag 50. Is functioning to do. The wireless reader unit 20 is configured as a circuit that performs transmission using a known radio wave system, and includes a transmission circuit 21, a reception circuit 22, a matching circuit 23, and the like as illustrated in FIG.

  The transmission circuit 21 includes a carrier oscillator, an encoding unit, an amplifier, a transmission unit filter, a modulation unit, and the like, and is configured to output a carrier (carrier wave) having a frequency of 953 MHz, for example, from the carrier oscillator. The encoding unit is connected to the control unit 10, encodes transmission data output from the control unit 10, and outputs the encoded transmission data to the modulation unit. The modulation unit is a part to which the carrier (carrier wave) from the carrier oscillator and the transmission data from the encoding unit are input. The carrier (carrier wave) output from the carrier oscillator is encoded at the time of command transmission to the communication target. A modulated signal that is ASK (Amplitude Shift Keying) modulated by the encoded transmission code (modulated signal) output from the encoding unit is generated and output to the amplifier. The amplifier amplifies the input signal (the modulated signal modulated by the modulation unit) with a predetermined gain, and outputs the amplified signal to the transmission unit filter. The transmission unit filter filters the amplified signal from the amplifier. The transmission signal is output to the antenna 25 via the matching circuit 23. When a transmission signal is output to the antenna 25 in this way, the transmission signal is radiated to the outside from the antenna 25 as an electromagnetic wave.

  On the other hand, the radio wave signal received by the antenna 25 is input to the receiving circuit 22 through the matching circuit 23. The reception circuit 22 is configured by a reception unit filter, an amplifier, a demodulation unit, a binarization processing unit, a decoding unit, and the like, and after filtering a signal received via the antenna 25 with a reception unit filter, The signal is amplified by an amplifier, and the amplified signal is demodulated by a demodulator. Then, the demodulated signal waveform is binarized by the binarization processing unit, decoded by the decoding unit, and then the decoded signal is output to the control unit 10 as received data.

  The wireless tag 50 to be communicated is configured as a known RFID tag in hardware, for example, and as shown in FIG. 4, an antenna 51, a power supply circuit 52, a demodulation circuit 53, a control circuit 54, a memory 55, a modulation circuit. 56 or the like. The power supply circuit 52 rectifies and smoothes a transmission signal (carrier signal) received from the reading device 2 via the antenna 51 to generate an operation power supply. The operation power supply includes the control circuit 54 and the like. Is supplied to each component. The demodulating circuit 53 demodulates the data superimposed on the transmission signal (carrier signal) and outputs it to the control circuit 54. The memory 55 includes various semiconductor memories such as a ROM and an EEPROM, and includes tag identification information (tag ID) for identifying the control program, the wireless tag 50, and data set by the user according to the use of the wireless tag 50. (Product data, logistics data, etc.) are stored. The control circuit 54 is configured to read the information and data from the memory 55 and output it as transmission data to the modulation circuit 56. The modulation circuit 56 performs load modulation on the carrier signal with the transmission data and performs the antenna 51. Is transmitted as a reflected wave.

  As shown in FIG. 3B, the information code reading unit 30 includes a light receiving sensor 33 formed of a solid-state imaging device such as a CCD area sensor, an imaging lens 37, an illumination unit 31 including a plurality of LEDs and lenses. Etc., and functions to read the information code attached to the reading object R in cooperation with the control unit 10. In the present embodiment, a partially private code C configured as a QR code is used as the information code.

  When the information code reading unit 30 reads, for example, a part of the secret code C, first, the illumination light Lf is emitted from the illumination unit 31 that receives a command from the control unit 10, and the illumination light Lf is read from the reading port. The reading object R is irradiated through (not shown). Then, the reflected light Lr partially reflected by the secret code C from the illumination light Lf is taken into the apparatus through the reading port, and is received by the light receiving sensor 33 through the imaging lens 37. The light receiving sensor 33 corresponds to an example of “imaging means”.

  The imaging lens 37 disposed between the reading port (not shown) and the light receiving sensor 33 is configured to form a part of the image of the non-disclosure code C on the light receiving sensor 33. A light reception signal corresponding to the image of the partially hidden code C is output. The light receiving signal output from the light receiving sensor 33 is stored as image data in the memory 11 (FIG. 2) and used for decoding processing and the like. The information code reading unit 30 is provided with an amplifier circuit that amplifies the signal from the light receiving sensor 33, an AD converter circuit that converts the amplified signal into a digital signal, and the like. Is omitted.

(Partial configuration of private code)
Next, the partially private code C read by the information code reading unit 30 will be described with reference to FIGS.
FIG. 5 is an explanatory diagram for conceptually explaining the code configuration of the partially private code used in the reading system 1 according to the first embodiment. 6A is an explanatory diagram illustrating the data configuration of the partially private code of FIG. 5, and FIG. 6B shows the disclosure data to be recorded in the public area of the partially private code. FIG. 6C is an explanatory diagram illustrating cipher data recorded in a private area of a partially private code. In FIGS. 1 and 5, the specific cell configuration of some private codes is omitted, but the same configuration as a known QR code (configuration in which bright cells and dark cells are arranged in a matrix) and can do.

  As shown in FIG. 5, the partially private code C is encrypted with a public area Ca in which non-encrypted data (public data) that can be read without using an encryption key is recorded, and an encryption key. The private area Cb in which the encrypted data (private data) thus recorded is recorded and the error correction area in which the error correction code is recorded are provided. Further, the present embodiment is characterized in that a cooperation identifier (predetermined information) described later is recorded in the public area Ca, and number information, article name information, etc. described later are recorded in the non-public area Cb.

  Some of the areas are private areas (areas that can be read on the condition that a decryption key corresponding to the encryption key is obtained) and other areas are public areas (areas that can be read without using the decryption key) As a method for generating the private code C and a specific configuration of the partial private code C to be generated, for example, techniques disclosed in Japanese Unexamined Patent Application Publication Nos. 2009-9547 and 2008-299422 are preferably used. Can do. FIG. 6A illustrates the data configuration of a partially private code C generated using the techniques of these publications. Among these, the “disclosure code” is as shown in FIG. 6B. Each disclosed data is encoded in accordance with JIS basic specifications (JISX0510: 2004). The secret code is obtained by encoding each piece of encrypted data as shown in FIG. 6C according to JIS basic specifications (JISX0510: 2004). In the methods disclosed in Japanese Patent Application Laid-Open Nos. 2009-9547 and 2008-299422, the secret code recorded in the non-public area includes the decryption key and the decryption key check data that can specify the decryption key. In this embodiment, the decryption key and the decryption key check data are not included in the private area.

  The method for reading the partially closed code C is basically the same as in the case of the above-mentioned Japanese Patent Application Laid-Open Nos. 2009-9547 and 2008-299422. It is read in the same manner as the code, and after that, it is determined whether or not there is a secret identifier at a predetermined position (immediately after the end terminal in the example of FIG. 6A). The data in the non-public area that follows is read. Since the data in the private area is encrypted with the encryption key as described above, it can be decrypted only when the encryption key exists in the portable terminal.

  Note that the method for generating the partial private code C and the specific configuration of the partial private code C to be generated are not limited to this example, and the encrypted data is recorded in a partial area and is stored in another area. As long as it is a method capable of generating a two-dimensional code in which non-encrypted data is recorded, it may be generated by a method other than the method described in these publications.

  Further, the partially private code C used in the present embodiment is linked to a predetermined position in the data recorded in the public area Ca (in the example of FIG. 6A, immediately before the end terminal indicating the end of the public area). An identifier (predetermined information) is provided. This cooperation identifier is an identifier that becomes a wireless tag reading start condition in a reading process to be described later, and is configured with a predetermined specific number.

(Reading process)
Next, a reading process performed by the reading device 2 will be described with reference to FIGS. FIG. 7 is a flowchart illustrating the flow of reading processing performed by the reading device, and FIG. 8 is an explanatory diagram conceptually illustrating the configuration in the memory of the reading device. FIG. 9A is an explanatory diagram conceptually showing record information recorded in each wireless tag, and FIG. 9B is an explanation conceptually showing secret data recorded in a secret area. FIG.

  The reading process shown in FIG. 7 is executed, for example, when a predetermined operation (for example, a predetermined operation on the key operation unit 12 or the like) is performed. First, an imaging process for imaging an information code is performed (S1). For example, as shown in FIG. 1, when a partially private code C exists in the imageable area, this partially private code C is imaged, and a code image of this partially private code C is stored in the memory 11. Is done.

  After the imaging process of S1, a public area decoding process is performed (S2). In the reading process of FIG. 7, as an information code, a normal QR code (a QR code that does not include a non-public area (an area that can be deciphered on the condition that a decryption key is acquired)) and a QR code having a non-public area (one In the case of any QR code, a public area (an area in which unencrypted data is recorded) is used in S2 in the same manner as a known QR code. Data is read. Specifically, as shown in FIG. 6 (A), even in the case of a partially private code C, a termination terminal similar to a normal QR code is provided after the data in the public area. Even if it is a normal QR code, even the partially private code C shown in FIGS. 5 and 6, the data up to the end terminal position is decoded. “QR code” is a registered trademark.

  After S2, a determination process is performed to determine whether or not there is a secret identifier at a predetermined position of the information code data imaged in S1 (S3). The partially private code C used in the present embodiment is provided with a secret identifier consisting of a specific number at a predetermined position of the recorded data (immediately after the end terminal in the example of FIG. 6A). In S3, It is determined whether or not a specific number indicating a secret identifier exists at a predetermined position of the recording data recorded in the information code captured in S1. When there is no secret identifier, it is a normal QR code (a QR code that does not include a non-public area (an area that can be deciphered on the condition that the decryption key is acquired)), and therefore, the private area is decrypted. There will be no. In this case, the result in S3 is No, the decryption result in S2 is output (S13), and the reading process in FIG. 7 ends.

  On the other hand, if it is determined in S3 that there is a secret identifier, Yes is determined in S3 and the private area is decoded. In the reading device 2 according to the present embodiment, a decryption key (for example, the same data as the encryption key (public key)) corresponding to the encryption key used for encryption of the encrypted data recorded in the private area Cb is stored in the memory 11 ( 2), when a decryption key corresponding to the encryption key of the partially private code C acquired in S1 is recorded in the memory 11, the decryption key is used. The encrypted data recorded in the private area Cb is decrypted.

  The data in the private area Cb decrypted in S4 according to the decryption of the secret identifier (predetermined information) is temporarily written in the non-access area in the memory 11 as shown in FIG. In the example of FIG. 8, the memory 11 is provided with an access area that can be accessed by the user and a non-access area where access by the user is restricted, and the address numbers 00h to 10h are not accessed. The area with the address number 11h and later is an access area. FIG. 8 illustrates the case where the number information and article information described later are recorded in the non-public area Cb, and the decryption data (number information and article information) of the non-public area is recorded in the non-access area. It has become so.

  Note that the “access area” in the present embodiment is an area that can be read from the outside by an external operation (for example, operation by the key operation unit 12) on the reading device 2, and the “non-access area” is an area for the reading device 2. It may be an area that cannot be accessed by an external operation (for example, an operation by the key operation unit 12), or an area that can be accessed from the outside on the condition of a special command or a special password (that is, a special command or a special password). May be an area where only a person who knows can access.

  In the present embodiment, the memory 11 corresponds to an example of a “decryption key storage unit” and can store a decryption key corresponding to the encryption key of the private area Cb. Moreover, the control part 10 which performs the process of S2 and S4 corresponds to an example of a “decoding means”, and data of the public area Ca is obtained when a part of the secret code C is imaged by the light receiving sensor 33 (imaging means). And the data in the private area Cb is decrypted on the condition that the decryption key is stored in the memory 11 (decryption key storage means).

  After S4, a determination process is performed to determine whether or not a cooperation identifier exists based on the decoding result in S2 or S4 (S5). As shown in FIG. 6A, the partially private code C used in the present embodiment includes a specific number at a predetermined position (for example, a position immediately before the end terminal as shown in FIG. 6A). A cooperation identifier is provided, and in S5, it is determined whether or not such a cooperation identifier is included in the recording data of the partially private code C imaged in S1. When the linkage identifier is not included in the recording data of the partially closed code C, No is obtained in S5, and in this case, the decoding results in S2 and S4 are output (S13), and the reading process is performed. Ends.

On the other hand, when the cooperation identifier is included in the recording data of the partially private code C, Yes in S5, and the reading process of the wireless tag 50 is performed (S6). Then, the reading process in S6 is performed until a predetermined end condition is satisfied (for example, until a predetermined set time elapses) (S7).
In the present embodiment, the control unit 10 and the wireless reader unit 20 that execute the process of S6 correspond to an example of “wireless reading unit”, and the cooperation identifier (predetermined information) recorded in the public area Ca is read by the decoding unit. It functions to read the wireless tag 50 (wireless communication medium) in the communicable area on the condition that it has been decoded.

  In the present embodiment, the reading process of FIG. 7 is performed in an environment as shown in FIG. 1, for example. In this example, a storage box 90 in which the article 80 is stored (the storage box 90 corresponds to an example of a “storage unit”). Reading is performed as a reading object. In this case, when the partial private code C attached to the storage box 90 is decoded or determined by the processing of S1 to S5 described above, and the cooperation identifier recorded in the partial private code C is acquired. The wireless tag 50 in the storage box 90 is read by the reading process of S6.

  In the example of FIG. 1, the wireless tag 50 is attached to each article 80 in the storage box 90, and information on the article to which each wireless tag 50 is attached is stored in the memory 55 (recording unit) of each wireless tag 50. (For example, an article name, an article code, etc.) are recorded. 9A conceptually shows record information recorded in each wireless tag. In this example, the unique name and the article name information of the article attached to the memory 55 of each wireless tag 50 are shown. (Article name, product code, etc.) and other information (price information of attached product etc.) are stored. In the reading process of S <b> 6, these pieces of information recorded on each wireless tag 50 are read and temporarily stored in the memory 11.

  After the reading of S6 is performed until a predetermined end condition is satisfied, a collation process is performed (S8). In this collation process, the data in the non-public area Cb decrypted in S4 and the read result of the wireless tag 50 in S6 are compared and collated, and it is determined whether or not these are in a predetermined matching state. . For example, when the partially closed code C is attached to the storage box 90 as shown in FIG. 1, the closed box C of the partially closed code C enters the storage box 90 as shown in FIG. 9B. "Number of wireless tags" as the number information of the wireless tags 50 to be stored (that is, the number information of the articles 80 to be stored in the storage box 90) and the product name information of each product to be stored in the storage box 90 (the product name of each product) And the product code) are recorded after being encrypted using the above-described encryption key (public key), and in S4, such information is decrypted and the above-mentioned non-access area is recorded. (FIG. 8). In S8, it is determined whether or not the number information (number of wireless tags) written in the non-access area in this way matches the number of wireless tags 50 read in S6, and further written in the non-access area. It is determined whether or not each article name information thus read matches each article name information of each wireless tag 50 read in S6. If both the number of wireless tags and the article name information match, the matching result is “matched” and information to that effect is temporarily stored, and either the number of wireless tags or the article name information is one. If not, the collation result is “mismatched” and information to that effect is temporarily stored.

  The control unit 10 that executes the process of S9 corresponds to an example of “comparison means”, and the reading result of the wireless tag 50 (wireless communication medium) by the wireless reading means and the decoding result of the non-public area Cb by the decoding means. More specifically, it is determined whether or not the number information recorded in the non-public area Cb matches the number of wireless tags 50 read by the wireless reading means ( A match determination as to whether or not a predetermined match condition is satisfied), and further, article name information (article information) recorded in the non-public area Cb and information related to the article read by the wireless reading means (each wireless tag 50) And the article name information recorded in (1) are compared with each other (comparative judgment whether or not they are in a predetermined correspondence).

  If it is determined in S9 that the collation results are the same, Yes in S9 and a notification of normality is given (S10). Examples of the notification method include a method of displaying explanatory information such as “successful verification” on the display unit 13, and other methods (for example, ringing by a buzzer, lighting of a lamp, etc.) may be used. . On the other hand, if it is determined in S9 that the collation results do not match, No is determined in S9 and a notification that there is an abnormality is given (S11). Examples of the notification method include a method of displaying explanatory information such as “collation failure” on the display unit 13, and other methods (for example, ringing by a buzzer or the like (ringing different from normal), It may be lighting of a lamp (lighting different from that in a normal case).

  The control unit 10 and the display unit 13 that execute the processes of S10 and S11 correspond to an example of an “output unit”, and a comparison result by the comparison unit (specifically, a result of the coincidence determination of the number and a comparison determination of the article information) Function).

  After S10 or after S11, the contents of the number information and the article name information (data obtained by decoding the non-public area) recorded in the non-access area of the memory 11 are deleted (S12). Note that the control unit 10 that executes the process of S12 corresponds to an example of “erase unit”, and after the comparison unit compares the read result of the wireless tag 50 (wireless communication medium) with the decryption result of the non-public area Cb. The decryption result of the private area Cb written in the non-access area of the memory 11 is erased.

(Main effects of the first embodiment)
In the reading system 1 and the reading device 2 according to the present embodiment, the wireless tag 50 in the communicable area is provided on the condition that the cooperation identifier (predetermined information) recorded in the public area Ca is decoded by the decoding means. It is configured to read (wireless communication medium). In this way, by recording predetermined information in the public area Ca, it is possible to link the code reading and the wireless communication medium reading, and smooth the wireless reading by minimizing complicated operations and processing delays as much as possible. It becomes easy to move to.
In addition, a comparison unit that compares the reading result of the wireless tag 50 by the wireless reading unit with a decoding result of the non-public area Cb by the decoding unit and an output unit that outputs the comparison result by the comparing unit are provided. The reading result of the wireless tag 50 can be easily and appropriately determined based on a standard prepared in advance, and further, the information used as the standard for the determination is recorded in the secret area Cb in an encrypted state. Therefore, it is extremely difficult for a third party to obtain this information.

  Further, in the present embodiment, the partially private code C in which the number information is recorded in the private area Cb is to be read, and the comparing means is based on the number information recorded in the private area Cb and the wireless reading means. It is determined whether or not the number of read wireless tags 50 satisfies a predetermined matching condition. The output means outputs the result of the coincidence determination by the comparison means. In this way, it is possible to accurately determine whether or not the actual read number is appropriate based on the number information prepared in advance. Furthermore, since the number information that is the determination criterion is recorded in the private area Cb in an encrypted state, it is possible to prevent a situation in which the third person has tampered with the actual reading of the wireless tag 50. The number is always easily determined based on accurate criteria.

Further, in the present embodiment, the wireless tag 50 having the memory 55 (recording unit) attached to the article 80 and recording information related to the article 80 is set as a communication target, and further, the storage box 90 (accommodation) that accommodates the article 80. And a partially private code C in which at least article information is recorded in the private area Cb is set as a reading target. The comparing means compares and determines whether or not the article information recorded in the non-public area Cb and the information related to the article read by the wireless reading means are in a predetermined correspondence relationship, and the output means is the comparing means The result of the comparison judgment is output.
In this way, it is possible to determine whether or not the article 80 stored in the storage box 90 is appropriate in light of reference information prepared in advance (article information recorded in a non-public area), In particular, such a determination can be made from the outside of the storage box 90. Further, since the article information is recorded in the private area Cb in an encrypted state, it is possible to effectively prevent a situation where the article information is grasped or altered by a third party. In particular, when the article 80 stored in the storage box 90 is an expensive article (for example, jewelry, decoration, precious metal, etc.) or an article that is not desired to be grasped by a third party, Since only the person who has the reading device 2 provided with the decryption key can check it while keeping the specific contents secret from a third party, it is very advantageous in terms of security.

  Further, in the present embodiment, a memory 11 having an access area that can be accessed by the user and a non-access area in which access by the user is restricted is provided, and the decoding means is linked to the public area Ca. When the identifier (predetermined information) is decrypted, the decryption result of the private area Cb is written in the non-access area, and the comparison means decrypts the decryption result of the private area written in the non-access area and the wireless tag by the wireless reading means 50 reading results are compared. In this way, since the decryption result of the non-public area Cb is processed in the non-access area, it is possible to prevent the information recorded in the non-public area Cb from leaking indirectly through the reading device 2. .

  Further, in the present embodiment, the erasing unit for erasing the decryption result of the private area Cb written in the non-access area after the comparison unit compares the read result of the wireless tag 50 with the decryption result of the private area Cb. Is provided. In this way, leakage of information recorded in the non-public area Cb can be more reliably prevented.

[Other Embodiments]
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  In the above embodiment, when the number of the wireless tags 50 read in S6 and the item name information recorded in each wireless tag 50 are inconsistent, the verification result is inconsistent. You may judge only. For example, if the number of wireless tags 50 read in S6 matches the number of wireless tags recorded in the non-public area Cb, the process proceeds to Yes in S9, and to S9 if they do not match. You may make it progress to No. Alternatively, each item name information of each wireless tag 50 read in S6 is compared with each item name information recorded in the non-public area Cb. If they match, the process proceeds to Yes in S9. If not, the process may proceed to No in S9.

DESCRIPTION OF SYMBOLS 1 ... Reading system 2 ... Reading apparatus 10 ... Control part (Decoding means, wireless reading means, comparison means, output means, erasing means)
11 ... Memory (decryption key storage means 13 ... Display section (output means)
20: Wireless reader unit (wireless reading means,
33 ... Light receiving sensor (imaging means)
50. Wireless tag (wireless communication medium)
55. Memory (recording unit)
80 ... article 90 ... container box (container)
C ... Partially private code (information code)
Ca: Public area Cb: Private area

Claims (6)

A public area and a non-public area in which encrypted data encrypted based on the encryption key is recorded, and a non-public area in which a cooperation identifier and a secret identifier are recorded at a position other than the non-public area Imaging means capable of imaging the public code;
Decryption key storage means capable of storing a decryption key corresponding to the encryption key;
When the partially private code is imaged by the imaging means, the data in the public area is decrypted, the secret identifier is read, and the decryption key is stored in the decryption key storage means A decryption that decrypts the data in the private area as a condition and outputs the decryption result of the area in which the unencrypted data is recorded when the secret identifier cannot be read from the information code captured by the imaging means Means,
Wireless reading means for reading a wireless communication medium by wireless communication;
A reading device comprising:
The wireless reader means, said linkage identifier read-the wireless communication medium communicable area on condition that it has been decoded by said decoding means, said wireless communication medium when the linkage identifier is not decoded by said decoding means Is not configured to read,
Further, a comparison means for comparing the reading result of the wireless communication medium by the wireless reading means and the decoding result of the non-public area by the decoding means;
Output means for outputting a comparison result by the comparison means;
Is provided. The partially private code is a number information recorded in the private area,
The comparison means performs a coincidence determination as to whether or not the number information recorded in the non-public area and the number of the wireless communication media read by the wireless reading means satisfy a predetermined matching condition,
The reading apparatus according to claim 1, wherein the output unit outputs a result of the coincidence determination by the comparison unit. The wireless communication medium has a recording unit that is attached to an article and records information about the article,
The partially private code is attached to a storage means for storing the article, and at least article information is recorded in the secret area.
The comparison means compares and determines whether or not the article information recorded in the non-public area and the information about the article read by the wireless reading means are in a predetermined correspondence relationship,
The reading apparatus according to claim 1, wherein the output unit outputs a result of the comparison determination by the comparison unit. A memory having an access area which can be accessed by a user and a non-access area where access by the user is restricted;
The decryption means, when decrypting the predetermined information recorded in the public area, writes the decryption result of the private area to the non-access area,
The comparison means compares the decryption result of the non-public area written in the non-access area with the read result of the wireless communication medium by the wireless reading means. The reading device according to any one of the above.   And erasing means for erasing the decryption result of the private area written in the non-access area after the comparison means compares the read result of the wireless communication medium with the decryption result of the private area. The reading apparatus according to claim 4. A public area and a non-public area in which encrypted data encrypted based on the encryption key is recorded, and a non-public area in which a cooperation identifier and a secret identifier are recorded at a position other than the non-public area Public code,
A reader capable of reading the partially private code;
A reading system comprising:
The reader is
Imaging means capable of imaging the partially private code;
Decryption key storage means capable of storing a decryption key corresponding to the encryption key;
When the partially private code is imaged by the imaging means, the data in the public area is decrypted, the secret identifier is read, and the decryption key is stored in the decryption key storage means Decrypting means for decrypting the data in the private area and outputting the decryption result of the area in which the unencrypted data is recorded when the secret identifier cannot be read from the information code imaged by the imaging means When,
Read-wireless communication medium communicable area on the condition that the linkage identifier has been decoded by said decoding means, a configuration in which the linkage identifier is not read in the wireless communication medium if not decoded by said decoding means A wireless reading means;
Comparing means for comparing the reading result of the wireless communication medium by the wireless reading means with the decoding result of the private area by the decoding means;
Output means for outputting a comparison result by the comparison means;
A reading system comprising:

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