JP2009110373A - Non-contact IC card, card case, card reader, and non-contact IC card system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To invalidate an illegal reading (skimming) act itself even when any illegal reading (skimming) is operated since there is possibility that identification information is easily read (skimmed) only by holding a reader in a place crowded with people such as a crowded train or elevator when a user carries a wallet or season ticket holder containing a non-contact IC card by putting it in his or her chest pocket or handbag. <P>SOLUTION: This non-contact IC card (1) includes an IC chip (3) for storing identification information and an antenna (4) for transmitting/receiving data, wherein unique information (5) is written on the surface or inner layer of the non-contact IC card (1), and the unique information is not relevant to the identification information of the IC chip. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to non-contact IC media such as admission tickets, employee ID cards, certificates, etc., and in particular, an IC chip storing unique identification information and an antenna for transmitting and receiving the identification information. In particular, the present invention relates to a technique for preventing illegal reading and writing such as illegally reading (skimming) the identification information or description information of the IC chip and illegally rewriting the description information.

  The problem with non-contact IC cards is that if you carry a wallet or regular holder with a non-contact IC card in your chest pocket or handbag, you can carry it in a crowded place such as a crowded train or an elevator in a crowded place. There is a possibility that skimming will occur without touching just by holding the reader over the device.

  As a countermeasure, a card-shaped skimming prevention card made of a conductive material is placed in a wallet or periodic holder in a state of being in close contact with a non-contact IC card, so that it is not easily skimmed by a reader. It has been. In addition, anti-skimming wallets and the like in which an electromagnetic wave shielding film made of a conductive material is sewn into the wallet in advance have been commercialized.

  These anti-skimming measures are not easy to use, because when you hold a non-contact IC card over the original reader, you will be forced to remove the non-contact IC card from your wallet or regular holder and hold it over the reader. . Originally, contactless IC cards were the biggest feature of convenience that they could be read and written with a reader while they were put in a wallet or periodic holder, but recently there has been a risk of being easily skimmed illegally. The current situation is that convenience is being lost.

  The present invention solves the problems of the background art, and the problem is that when a wallet containing a contactless IC card or a regular case is carried in a chest pocket or handbag, In crowded places such as elevators, identification information may be easily read (skimmed) simply by holding the reader, but even if this illegal reading (skimming) is performed, illegal reading will occur. This is to invalidate the act of (skimming) itself.

In order to achieve the above object in the present invention, first of all, in the invention of claim 1, a non-contact IC card comprising an IC chip for storing identification information and an antenna for transmitting and receiving data,
The contactless IC card is characterized in that unique information is written on a surface or an inner layer of the contactless IC card, and the unique information is information having no correlation with identification information of the IC chip.

In the invention of claim 2,
2. The contactless IC card according to claim 1, wherein the portion describing the unique information is a rewrite layer having a rewrite display function that can be rewritten a plurality of times.

In the invention of claim 3,
3. The non-contact IC card according to claim 1, wherein a visible light cut seal is attached to an upper surface of a portion where the unique information of the non-contact IC card is described.

In the invention of claim 4,
It is a transparent card case which accommodates the said non-contact IC card of any one of Claims 1-3, Comprising: The specific information of the said non-contact IC card is described in the state which accommodated the said non-contact IC card. The card case is characterized in that a visible light cut filter is provided at a position covering the portion that is covered.

In the invention of claim 5,
An antenna and a transmission / reception unit that perform wireless communication with the non-contact IC card according to any one of claims 1 to 3, a camera and an image processing unit that optically read unique information of the non-contact IC card, The identification information read by the antenna and the transmission / reception unit from the IC chip included in the non-contact IC card and the unique information optically read by the camera and the image processing unit are combined into the non-discrimination. The card reader is characterized by exchanging information with an external device as identification information of the contact IC card.

In the invention of claim 6,
After wireless communication is performed between the antenna and the transmission / reception unit with the contactless IC card, the camera and the image processing unit start the reading operation of the unique information, and read the unique information. The card reader according to claim 5, wherein the card reader is performed a plurality of times.

In the invention of claim 7,
The identification number of the IC chip included in the non-contact IC card according to any one of claims 1 to 3 and the unique information described on the surface or inner layer of the non-contact IC card are combined together. The non-contact IC card is managed by regarding the individual identified by the identification information of the non-contact IC card and the individual identified by the identification number of the IC chip included in the non-contact IC card as the same individual This is an IC card system.

In the invention of claim 8,
A non-contact IC card system that manages the unlocking of a security gate, a security door, and a security locker in a site, a building with the non-contact IC card according to any one of claims 1 to 4,
When the unlocking is enabled by reading both information of the identification information of the IC chip provided in the non-contact IC card and the specific information described on the surface or inner layer of the non-contact IC card, and It is a non-contact IC card system characterized by duplicating the management of the unlocking when the unlocking is possible by reading only the identification information of the IC chip provided in the non-contact IC card. .

If you carry a wallet or periodic wallet containing a contactless IC card in your chest pocket or handbag, you can easily read identification information just by holding the reader in crowded places such as crowded trains and elevators. (Skimming) may occur. In order to solve this problem, in the invention of claim 1, the card specific information is newly described on the surface or inner layer of the non-contact IC card, and the non-contact IC card IC chip identification information is combined with the non-contact IC card. By using the identification information of the contact IC card, only the identification information of the IC chip of the non-contact IC card can be read even if the above-mentioned unauthorized reading (skimming) is performed, and it enters the chest pocket or the handbag. In this situation, it is impossible to optically read the unique information written on the surface of the non-contact IC card. Therefore, since all of the identification information as the non-contact IC card is not available, There is an effect that the act of skimming) can be invalidated.

  According to the first aspect of the present invention, in order to improve the security of the non-contact IC card, the unique information described on the surface of the non-contact IC card is information that has no correlation with the identification information of the IC chip. Unique information that cannot be inferred from the identification information of the chip is obtained, and as a result, there is an effect that it becomes a high countermeasure against forgery.

  According to the second aspect of the present invention, in order to improve the security of the non-contact IC card, the portion where the unique information is written on the surface or inner layer of the non-contact IC card has a rewrite display function that can be rewritten a plurality of times. By doing so, it becomes possible to change the specific information regularly or irregularly, and there is an effect that the security can be improved.

  According to a third aspect of the present invention, whether the unique information is printed with ink that absorbs infrared light by covering the portion of the unique information described on the surface of the non-contact IC card with a visible light cut seal, If the layer has a characteristic of absorbing infrared light, there is an effect that it is possible to prevent the specific information from being seen with eyes or with a normal camera.

  Further, in the invention of claim 4, by providing the visible light cut seal having the same effect in the transparent card case, the unique information can be obtained just by inserting a non-contact IC card into this card case. This has the effect of preventing sneaking in.

  Further, in the invention of claim 5, the reading of the non-contact IC card in the card reading device is an operation only for bringing the surface with the specific information described in the non-contact IC card card into contact with the device, There is an effect that the security can be remarkably improved while maintaining the convenience of the IC card.

  In the invention of claim 6, even if there is dust or dirt on the transparent glass protecting the camera, there is an effect that the reading can be repeated until the reading of the unique information is successful.

  As described above, the non-contact IC card and the card reader according to the present invention are used in a key management system such as a security gate, a security door, and a security locker in a site or a building. High security system can be realized while maintaining the security.

  In the inventions of claims 7 and 8, the security level is lowered, but the security level is increased by introducing a conventional card reader that reads only the identification information of the IC chip of the non-contact IC card into the system. Key management in areas that are not necessary can also be set, so there is an effect that flexible security management can be performed by security gates, security doors, security lockers, etc. in the premises and buildings.

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

FIG. 1 is a perspective view of the appearance of a non-contact IC card according to the present invention. The non-contact IC card 1 includes an IC inlet 2 including an electromagnetic induction type or radio wave type IC chip 3 and an antenna 4, and the card surface. On the upper surface or inner layer, characters 5 printed with ink that absorbs visible light or infrared light are described. The above-described IC chip 3 stores chip-specific identification information that cannot be rewritten by the user, and the chip-specific identification information can be read by a dedicated reader using the above-described electromagnetic induction type or radio wave type radio communication. it can.

  Conventionally, information specific to a card printed on the surface or inner layer of a non-contact IC card is the name, employee number, member number, ID number, identification data of the IC chip, data stored in the user memory in the IC chip. Or related data, and the purpose is to display registration data for the card user, to visualize memory data in the IC chip, and to complement data when the IC chip is damaged.

  In the present invention, for the purpose of identifying the non-contact IC card 1, characters 5 are printed on the card surface or the inner layer on the premise that they are read by a dedicated optical reader described later. The card identification information represented by the characters 5 printed on the surface or the inner layer on the card surface is information that does not correlate with the identification information of the IC chip 3 described above. In the present invention, this information is referred to as the card unique information 5. Call. The uncorrelated information here is a management number that is completely unrelated to the identification information of the IC chip 3, and refers to information that cannot be mathematically estimated from the identification information of the IC chip 3. Secure security.

  The non-contact IC card 1 of the present invention is a card on which two types of identification information of the IC chip 3 and unique information 5 of the card are mounted, and the reading device is brought into contact with or in close contact with the reading device described later. Two types of information of this card are read almost simultaneously, read data is output as one piece of card identification information, and it is judged by comparing with pre-registered data in a database in a computer connected to the same network as the reading device. Used in the system.

  Although the display of the card unique information 5 is a character, the display form is not limited as long as the unique information can be read by various barcodes and other optical readers described later as well as alphanumeric OCR characters.

  In order to further enhance the security of the contactless IC card of the present invention, the unique information 5 written in ink on the surface or inner layer of the card is changed to a display by a rewrite function that can be rewritten a plurality of times, or It becomes possible to change the card-specific information 5 irregularly, and security can be improved. The rewrite function is a general leuco-type or cloudy-type rewrite layer that develops and erases with changes in temperature. The heat source includes color development, a thermal head for erase, and a heat roller for erase.

  By covering a portion of the card unique information 5 described on the surface or inner layer of the non-contact IC card 1 of the present invention with a visible light cut seal, the card unique information 5 can be viewed or viewed with a normal camera or the like. Can be prevented. The visible light cut seal is obtained by sealing a film having optical characteristics with little attenuation in the infrared wavelength region and large attenuation in the visible wavelength region. In this case, the card specific information 5 needs to be printed with ink that absorbs infrared light.

  As shown in FIG. 2, a visible light cut seal 6 having the same light characteristics is attached to a transparent card case 7 at a position where the unique information 5 portion of the card is hidden when the card is inserted. Just by inserting the contact IC card 1, it is possible to prevent the card-specific information 5 from being seen visually or with a normal camera or the like as described above. In this case as well, the card unique information 5 needs to be printed with ink that absorbs infrared light, as described above.

If the card's unique information is displayed with a rewrite function that can be rewritten multiple times, if the rewrite layer has the characteristic of absorbing infrared light, the card's unique information part is visible as described above. Hiding with a cut sticker can prevent snooping. In this case, by providing a light-to-heat conversion layer in addition to the rewrite layer, a light source such as an infrared laser can be used for non-contact display without removing the visible light cut sticker attached to the card. It can be erased and colored (printed).

  If the rewritable layer has the characteristic of absorbing infrared light, it is possible to prevent snooping by inserting the card into the card case 7 with a visible light cut seal.

  FIG. 3 is an external view of the card reading device according to the present invention as viewed from above, FIG. 4 is a side perspective view thereof, and both drawings are diagrams illustrating the configuration of the card reading device. The card reader has a transparent glass 31 on the upper surface of a main body 30, and visible light or infrared light for optically photographing the specific information described on the surface or inner layer of the non-contact IC card 42 inside the glass. Wireless communication between the non-contact IC card 42 and the non-contact IC card 42 which receives visible light or infrared light for photographing the specific information of the non-contact IC card surface clarified by the illumination The antenna unit 34 is provided. The unique information on the surface of the non-contact IC card 42 refers to characters, barcodes, etc. printed with ink that absorbs visible light or infrared light, and characters, barcodes, etc. displayed by the rewrite display function. .

  FIG. 5 is a block diagram showing the internal configuration of the card reader. The card reader includes a CPU unit 38 that controls all of the devices and data processing, a memory unit 39 that stores the operation program of the device and all processing data, and an I / F unit 40 that performs various data communications with external devices. Printed on the non-contact IC card 42, the antenna unit 34 for performing wireless communication with the non-contact IC card 42, the transmission / reception unit 35 including a high-frequency circuit, a data modulation circuit, a control circuit, etc. The camera unit 33 for optically reading the unique information, the image processing unit 36 for performing character extraction, character recognition, etc. from the image data obtained from the camera unit 33, and the unique characteristics of the target non-contact IC card 42 An illumination unit 32 and a power supply unit 37 for ensuring reading of information are provided.

  The card reader is a mechanism that starts a reading operation in response to a command from an external device such as a general-purpose computer connected to the I / F unit 40 (serial, parallel, LAN, wireless LAN, optical communication, etc.), and receives a reading command. Then, the wireless communication with the non-contact IC card 42 is started by operating the antenna unit 34 and the transmission / reception unit 35. When the non-contact IC card 42 enters the space area in which transmission / reception is possible, wireless communication is performed with the non-contact IC card 42 and the identification information of the IC chip is read. A camera unit 33 for optically reading unique information printed on the contact IC card 42, an image processing unit 36 for performing character extraction, character recognition, and the like from image data obtained from the camera unit 33, and an illumination unit 32 and the operation starts. After reading the identification information of the IC chip and the unique information printed on the card surface, the identification information and the unique information read via the I / F unit 40 are transmitted to the above-described general-purpose computer as an external device. In the case of the present embodiment, since the non-contact IC card 42 is assumed to be held in close contact with the reading device by a human hand, the above-described space area where radio communication can be transmitted and received and the shootable area coincide with each other. A good captured image can be obtained at the timing. The imageable area here refers to a range where a sufficient illuminance is obtained and a depth of field is obtained.

In order to optically reliably read the unique information printed on the non-contact IC card, the unique information printed by bringing the card case containing the non-contact IC card and the non-contact IC card into close contact with or in contact with the transparent glass 31. Information needs to be read. If the transparent glass 31 is in a clear state, reading can be performed reliably. On the other hand, since the non-contact IC card, card case, human hand, etc. always hit the transparent glass 31, dust, In some cases, dirt or the like may be attached, and this dust or dirt may cause an error or erroneous recognition in processing such as character extraction and character recognition.

Until the non-contact IC card 42 is brought close to the close contact with the transparent glass 31 on the upper surface of the main body 30 from the outside of the shootable area by a human hand, the camera unit 33 and the image processing unit 36 capture images a plurality of times. Processes such as extraction and character recognition are continuously executed. If there is dust, dirt, etc. adhering to the transparent glass 31 on the virtual straight line connecting the position of the non-contact IC card 42 and the camera unit 33 when the image is first captured, the non-contact IC card Since the non-contact IC card 42 is brought close to the transparent glass 31 by a human hand until it is in close contact with the transparent glass 31, there is a high possibility that the non-contact IC card 42 is slightly removed from the virtual straight line. The unique information of the contact IC card 42 can be seen from the camera unit 33, and reading is successful in the processing of image capture, character extraction, and character recognition at this moment.

  If the reading of the unique information printed on the non-contact IC card 42 fails due to the dust, dirt, etc. adhering to the transparent glass 31, the card reader issues a reading error and reads it again. Request. In this card reader, reading is performed with visible light or infrared light, and infrared light has a longer wavelength than visible light, so that it is generally considered less susceptible to dust and dirt. Visible light is used only when the ink used for printing the unique information of the non-contact IC card 42 does not absorb infrared light, and infrared light is usually used.

  The above-mentioned non-contact IC card has a visible light cut sticker pasted on the card surface and hidden, and the non-contact IC card is inserted into the card case with the visible light cut seal. The unique information described in the contactless IC card is read using infrared light included in the card reader described above.

  As shown in the example of FIG. 6, the identification information of the IC chip in the non-contact IC card is 60, 61 is the unique information printed on the non-contact IC card, and in the present invention, these two information are combined, The identification information of the non-contact IC card 42 is used.

  As shown in FIG. 6, the identification information 60 of the above-mentioned contactless IC card 42 transmitted from the I / F unit 40 of the card reader is added with the printed unique information 61 after the identification information 60 of the IC chip. When sending in plain text and taking network security into consideration, the identification information of the IC chip and the printed unique information are mixed or further encrypted and transmitted with a predetermined calculation formula. Therefore, it is possible to cope with unauthorized interception on the network.

  The card reader of the present invention is connected to a local network and is used for key management of security gates, security doors, security lockers and the like in the premises and buildings. This card reader is installed in the vicinity of the security gate, security door, and security locker installed on the premises and in the building. When a non-contact IC card is held over this card reader, the card identification information is as described above. And the identification information is collated with a database connected on the network. If the identification information has been registered, the security gate, the security door, and the security locker are unlocked.

  In addition, for key management of security gates, security doors, security lockers, etc. in the premises and buildings, a card reader that can only read the identification information of the IC chip of a non-contact IC card is installed. When the contactless IC card is held over the card reader, the identification information of the IC chip is read, and this identification information is collated with the aforementioned database connected on the network, and if the identification information is registered, the security gate, Security doors and security lockers are unlocked.

  The reason why two types of card readers are used is that security gates, security doors, and security lockers in the premises and buildings are managed separately based on the concept of security level. The security level is the difference between the low security area and the high security area. In this description, the low security area is referred to as security level 1, and the high security area is referred to as security level 2. To do.

  In the security level 1 area, the above-described security gate, security door, and security locker can be unlocked only with the identification information of the IC chip of the non-contact IC card. In the security level 2 area, the non-contact IC card can be unlocked. The identification information of the IC chip and the unique information printed on the card are necessary, and when both pieces of information are gathered, the above-described security gate, security door, and security locker can be unlocked.

  In the conventional management performed by the identification information of the IC chip of the non-contact IC card, data corresponding to the above-described security level is registered in the database, and this registration information is used when unlocking the security gate, security door, and security locker. Whether or not unlocking is possible is determined. The non-contact IC card system of the present invention can be used in combination with this conventional management method, so that more flexible security management can be realized.

  The contactless IC card system of the present invention is key management of security gates, security doors, security lockers, etc. in premises and buildings as an example, but other types of security management using contactless IC cards are also provided. Of course, even a system can be applied.

1 is an external perspective view of a non-contact IC card according to an embodiment of the present invention. It is an appearance perspective view of the card case which is one embodiment of the present invention. It is the external view seen from the upper part of the card reader which is one Embodiment of this invention. FIG. 4 is a side perspective view of the card reading device shown in FIG. 3. It is a block diagram which shows the internal structure of a card reader. It is a figure which shows the example of the identification information of a non-contact IC card.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Non-contact IC card 2 ... IC inlet 3 ... IC chip 4 ... Antenna 5 ... Character (card specific information)
6 ... Visible light cut seal 7 ... Card case 30 ... Main body 31 ... Transparent glass 32 ... Illumination unit 33 ... Camera unit 34 ... Antenna unit 35 ... Transmission / reception unit 36 ... Image processing unit 37 ... Power supply unit 38 ... CPU unit 39 ... Memory unit 40 ... I / F unit 41 ... I / O line 42 ... Non-contact IC card 60 ... IC chip identification information 61 ... Card unique information

Claims (8)

A non-contact IC card comprising an IC chip for storing identification information and an antenna for transmitting and receiving data,
A non-contact IC card, wherein unique information is written on a surface or an inner layer of the non-contact IC card, and the unique information is information having no correlation with identification information of the IC chip.   2. The contactless IC card according to claim 1, wherein the portion describing the unique information is a rewrite layer having a rewrite display function that can be rewritten a plurality of times.   3. The non-contact IC card according to claim 1, wherein a visible light cut seal is attached to an upper surface of a portion where the unique information of the non-contact IC card is described.   It is a transparent card case which accommodates the said non-contact IC card of any one of Claims 1-3, Comprising: The specific information of the said non-contact IC card is described in the state which accommodated the said non-contact IC card. A card case, wherein a visible light cut filter is provided at a position covering the portion that is covered.   An antenna and a transmission / reception unit that perform wireless communication with the non-contact IC card according to any one of claims 1 to 3, a camera and an image processing unit that optically read unique information of the non-contact IC card, The identification information read by the antenna and the transmission / reception unit from the IC chip included in the non-contact IC card and the unique information optically read by the camera and the image processing unit are combined into the non-discrimination. A card reader which exchanges information with an external device as identification information of a contact IC card.   After wireless communication is performed between the antenna and the transmission / reception unit with the contactless IC card, the camera and the image processing unit start the reading operation of the unique information, and read the unique information. 6. The card reader according to claim 5, which is performed a plurality of times.   The identification number of the IC chip included in the non-contact IC card according to any one of claims 1 to 3 and the unique information described on the surface or inner layer of the non-contact IC card are combined together. The non-contact IC card is managed by regarding the individual identified by the identification information of the non-contact IC card and the individual identified by the identification number of the IC chip included in the non-contact IC card as the same individual IC card system. A non-contact IC card system that manages the unlocking of a security gate, a security door, and a security locker in a site, a building with the non-contact IC card according to any one of claims 1 to 4,
When the unlocking is enabled by reading both information of the identification information of the IC chip provided in the non-contact IC card and the specific information described on the surface or inner layer of the non-contact IC card, and A non-contact IC card system that doubles the management of the unlocking when the unlocking is possible by reading only the identification information of the IC chip provided in the non-contact IC card.