RU177093U1 - CONTACTLESS IDENTIFICATION SMART CARD WITH THE POSSIBILITY OF USING SEPARABLE FRAGMENTS AS AN ACTIVATED INDEPENDENT IDENTIFIERS WITH A UNIQUE CODE - Google Patents

Abstract

The utility model relates to the design of a contactless smart card. The technical result is to simplify the design and method of manufacturing the card, due to the ability to use only one RFID tag while maintaining the expansion of the functionality of the contactless smart card, in which the activation of additional RFID tags occurs at the time necessary for the user according to his desire. a card having a line for dividing the card into fragments, containing an RFID tag, having a shunt circuit, which is an electrical conductor connected to the terminals integrally RFID tags, and parts of this shunt circuit pass through two adjacent fragments of the card and are structurally connected to the card so that in the normal undamaged state of the card, this shunt circuit is in a working contact state, and in the state of the indicated adjacent adjacent fragments, this shunt circuit is in a broken contact state, characterized in that in a broken contact state of the shunt circuit, the RFID tag has an active state in which the RFID tag is brought to the reader upon request generates a response signal with an identification code.

Description

The utility model relates to the design of a contactless smart card.

Contactless identification smart cards are equipped with an integrated radio frequency tag (RFID tag) - an antenna, and an electronic module - an integrated microcircuit (chip) connected to the antenna. These cards allow the exchange of information using non-contact electromagnetic coupling between the antenna of the card and the antenna located in the reader. Contactless smart cards are often used as a means of access to the transport network as a means of payment, as well as as a means of identifying personnel.

Known patent RU 2251742 (publ.: 05/10/2005) for the invention, which describes a contactless or combined contact-contactless chip card containing an antenna on a substrate, while the antenna contains at least one turn made on the substrate by screen printing method with using electrically conductive paint, two card cases on each side of the substrate, each of which consists of at least one layer of plastic, and one microchip or one module connected to the antenna, characterized in that the substrate is made of paper and contains IT cuts in each corner, at the level of which are soldered to each other, two of the card body, the card at the fold is able to delaminate at the site of impact bending forces that allows then to detect intentional damage, as the card retains the traces of the fold.

Known contactless smart card (patent RU 92558U, publ.: 20.03.2010), made in the form of a substrate with an antenna located on it, containing several turns and two layers of a card on each side of the substrate, and one microchip or one module connected to the antenna characterized in that the antenna further includes a conductive connection, the closing part of the turns of the antenna, while the conductive connection is located on a detachable portion of the smart card. Known solutions are aimed at protecting a contactless smart card from illegal use. They are limited in their functionality exclusively by the microchip function of the card.

The closest analogue is the solution according to patent RU2626341, published: 07.26.2017, NON-CONTACT IDENTIFICATION SMART CARD WITH THE POSSIBILITY OF USING SEPARABLE FRAGMENTS AS AN ACTIVATED IDENTIFICATOR RFID-IDENTIFICATION (IDID).

The prototype describes a contactless identification smart card that contains an active main RFID tag located in a smart card or structurally connected to a smart card that has at least one line for dividing the card into fragments, characterized in that it contains an additional RFID tag, which has at least one shunt circuit, which is an electrical conductor or conductive connection containing at least one electrical conductor connected in contact with the antenna of the additional RFID tag, or connected to the terminals of the integrated circuit of an additional RFID tag, and sections of this shunt circuit pass through two adjacent fragments of the card and are structurally connected to the card so that in the normal non-destroyed state of the card, this shunt circuit is in the state of working contact, and in the state of the separated adjacent of fragments, this shunt circuit is in a broken contact state, while the additional RFID tag in the working contact state of the shunt circuit of the additional RFID tag in a dormant state, and in this contact state torn shunt circuit has an active state as an optional RFID-tags.

The non-contact smart identification card according to the second embodiment, comprising an active main RFID tag located on the smart card, or structurally connected to the smart card, having lines for dividing the card into fragments, characterized in that it contains at least two additional RFID tags, each having at least one shunt circuit, which is an electrical conductor or conductive connection containing at least one electrical conductor connected in contact with an antenna corresponding further RFID tags, or connected to the terminals of the integrated circuit of the corresponding additional RFID tags, and parts of this shunt circuit pass through two adjacent fragments of the card and are structurally connected to the card so that in the normal non-destroyed state of the card, this shunt circuit is in a state of working contact , and in the state of the indicated indicated adjacent adjacent fragments, this shunt circuit is in a broken contact state, with each of the additional RFID tags in the working contact state of the shunt the circuit of this additional RFID tag is made in an inactive state, and in the broken contact state of this shunt circuit has an active state as an additional RFID tag.

The technical result of the prototype is to expand the functionality of a contactless smart card, in which the activation of additional RFID tags occurs at a time necessary for the user at his request. It is also possible to use a smart card as a means of payment, which excludes the possibility of repeated debiting of funds in the event of unintentional repeated attachment of a card to a reader, turnstile validator. In addition, it is possible to use a smart card as a means of covertly signaling an alarm, while, as an option, it is possible to identify the signal that has been sent.

The technical problem of the prototype is that it needs to use at least two RFID tags, which complicates and increases the cost of the card design.

The objective of the utility model is to eliminate this problem while maintaining all the advantages of the prototype.

The technical result is to simplify the design and method of manufacturing the card, due to the ability to use only one RFID tag while maintaining the expansion of the functionality of a contactless smart card, in which the activation of additional RFID tags occurs at the time necessary for the user according to his desire.

The specified technical result is achieved due to the fact that a contactless smart card is declared having a line for dividing the card into fragments, containing an RFID tag, having a shunt circuit, which is an electrical conductor connected to the terminals of the integrated circuit of the RFID tag, and portions of this shunt circuit pass through two adjacent fragments of the card and are structurally connected to the card so that in the normal undamaged state of the card, this shunt circuit is in the state of working contact, and in the state of section GOVERNMENTAL said adjacent fragments this shunt circuit is able to break contact, characterized in that the contact state torn shunt circuit RFID-label has an active state in which the RFID-tag at presentation to a reader on its request generates a response signal with the identification code. In other words, the RFID tag in the state of the working contact of the shunt circuit is made with the main identification code, and in the state of the broken contact of the shunt circuit, the same RFID tag has a different active state with an additional identification code that differs from the main identification code.

It is permissible that the RFID tag in the state of the working contact of the shunt circuit is made in the active state with the main identification code, and in the state of the broken contact of the shunt circuit the same RFID tag has an active state with an additional identification code different from the main identification code.

It is acceptable that the RFID tag in the state of the operating contact of the short-circuit or shunt conductor is made in the inactive state, and in the state of a broken contact, the RFID tag has an active state.

The smart card can be configured to switch the integrated circuit of the RFID tag to generate an additional identification code instead of the main identification code if there is a control signal level not lower than the threshold at the corresponding contacts of the integrated circuit determined by the topology of the integrated circuit.

The smart card can be made in such a way that when the shunt circuit is closed, the potential difference between the control contacts of the integrated circuit of the RFID tag is not enough to switch the circuit to the active state with an additional identification code, and the difference in electric potentials between the control contacts required to switch the circuit is generated by opening shunt circuit in accordance with the topology of the chip.

Preferably, the smart card contains an RFID tag that has two shunt circuits and portions of each of these shunt circuits pass through two corresponding adjacent fragments of the card and characterized in that the RFID tag in the operating state of the shunt circuits is inactive and In the condition of a broken contact of one of the shunt circuits, the same RFID tag, in accordance with the topology of the chip, has an active state with the corresponding identification code, while the value of the identification code generated by the RFID tag depends on which particular shunt circuit is in a broken contact state.

Preferably, the smart card contains an RFID tag that has two shunt circuits and portions of each of these shunt circuits pass through two corresponding adjacent fragments of the card and characterized in that the RFID tag in the operating state of the shunt circuits is made in the active state with the main identification code, and in the condition of a broken contact of one of the shunt circuits, the same RFID tag in accordance with the topology of the chip has an active state with the corresponding additional identification code, exc aspirants from the basic identification code, the value of the additional identification code generated by RFID-label depends on what kind schuntiruyuschaya circuit is able to break the contact. Preferably, the fragments of the card are made in the form of layers connected to each other, the line for dividing the card into fragments runs along the boundary of the plane of contact of the layers and the card is configured to separate fragments in layers, and sections of the shunt circuit are made in two layers of the card.

Preferably, the lines for dividing the map into fragments are made in the form of a line of breaking or breaking, or tearing, or notching, or cutting, or perforating, or changing the thickness of the map, or the boundaries of materials, or the boundaries of structural elements, or internal cavities, or boundary lines of contact of layers . Preferably, one of the fragments is structurally embedded in the other fragment in the form of a nested bracket or loop covering the shunt conductor, or fastened with it, while breaking the shunt circuit is realized in such a way that breaking the contact of the shunt circuit is achieved by removing the built-in fragment from the body of the other fragment. It is permissible that the electrical conductor is connected in contact with the terminals of the integrated circuit of the RFID tag through the antenna.

Preferably, one of the fragments is made with a structural element protruding in the direction of the adjacent fragment, covering an electrical conductor from among the electrical conductors of the shunt circuits of the RFID tag, and intended to break this conductor when separating the fragments. It is permissible that one of the fragments is made with a structural element protruding in the direction of the adjacent fragment, is inextricably connected to this conductor and intended to rupture this conductor when separating the fragments.

Preferably, the RFID tag is structurally coupled to the smart card. It is acceptable that the RFID tag is integrated inside the smart card body.

Brief Description of the Drawings

In FIG. 1 schematically shows a possible example of such a design of a contactless smart card according to the first embodiment, which contains an RFID tag containing at least one short-circuit or shunt conductor.

In FIG. 2 schematically shows an example of a smart card having at least one line for dividing the card into fragments, and containing an RFID tag that has at least two shunt circuits.

In FIG. Figure 3 shows an example of a smart card made of two layers with the possibility of separating fragments in layers.

In FIG. Figure 4 shows an example of a card, where a fragment of a card is made with a structural element passing through an adjacent fragment and intended to break the conductor when separating the fragments.

In FIG. 5 schematically depicts a possible example of the implementation of a contactless smart card where the bypass circuit break is achieved by extracting a detachable fragment from the card body.

In the drawings: 1 - main substrate; 2 - antenna RFID tags located on the substrate; 3 - the main fragment of the map; 4 - microchip; 5 - the first and 10 - the second shunt circuit, respectively (in the form of a closing conductor); 6 and 13 - the first and second detachable fragments of a smart card, respectively; 7 and 14 - the first and second lines of dividing the smart card into fragments, respectively; 8, 9, 11 and 12 - contacts of the integrated circuit that control the change of the identification code of the RFID tag; 15 is a structural element designed to open the shunt circuit; 16 - additional substrate (separable layer) of the smart card

Utility Model Implementation

A contactless smart card can be made in the form of a substrate with an RFID tag located on it (an antenna and a microchip connected to it).

The card is made of a homogeneous laminated or composite material, plastic, paper (cardboard) or any material that meets the requirements of existing standards, may consist of layers of different or homogeneous materials. A card that is structurally unified under normal use can be divided into two or more parts. The card is divided into parts by mechanical separation of the card fragments by breaking off, tearing, cutting, separating one or more layers of the card or the like, while the design of the card allows the fragments to be separated along the agreed line with sufficient accuracy to achieve the claimed result. To simplify the separation of map fragments along the agreed dividing line, grooves, perforations, notches, card thickness differences, layer boundaries, material boundaries, boundaries of structural elements, internal cavities, and other material stress concentrators can be created along the fragments. For cards that are split into pieces by cutting (preferably cardboard or soft plastic), the line of separation may be indicated by a marking on the card body. The procedure for separating fragments, the location of the fragments to be separated, the location of the card dividing line can be communicated to the user with instructions for using the card without corresponding marking on the card.

There is one active RFID tag on the card in the active state with the main identification code with a shunt forming a short circuit.

The shunt circuit connected to the control terminals of the RFID tag chip can be made in the form of an electrical conductor or the electrical conductor is included in the shunt circuit of the RFID tag so that in the state of open contact of this conductor, the shunt circuit of the RFID tag is in the state of broken contact . The conductive connection is separated mechanically, i.e. mechanical activation of the new identification code of the RFID tag occurs.

The main implementation option of the claimed solution is based on the fact (see Fig. 1) that the smart card has lines for dividing the card into fragments: into the main part-fragment 3 containing the RFID tag, and the detachable part 6 of the card contains on the substrate 1 An RFID tag with a chip 4 and antenna 2 having at least one shunt circuit consisting of a shorting conductor 5. This conductor 5 is an electrical conductor (or a conductive connection containing at least one electrical conductor) connected in contact with the terminals of the int integrated circuit RFID tags, structurally connected to the card on the substrate 1. The electrical conductor can also be connected in contact with the terminals of the integrated circuit RFID tags through the antenna 2.

The sections of the conductor 5 pass through two adjacent fragments 3 and 6 of the card so that in the normal non-destroyed state of the card this conductor 5 is in the state of working contact, and in the state of the separated fragment 6 this conductor is in the state of broken contact. In this case, the RFID tag in the state of the working contact of the short-circuit or shunt conductor 5 is made in the active state with the main identification code, and in the state of the broken contact of the shunt circuit in accordance with the topology of the microcircuit, the same RFID tag has an active state with an additional identification code that differs from the main identification code. In particular, switching the integrated circuit of the RFID tag to the generation of an additional identification code (instead of the main identification code) can occur when there is a certain difference in electrical potentials between the control contacts 8 and 9 of the integrated circuit.

When the shunt circuit is closed, the potential difference between the control contacts 8 and 9 is insufficient to switch the circuit to the active state with an additional identification code. The difference in electric potentials necessary for switching between the control contacts 8 and 9 is generated in accordance with the topology of the microcircuit when the shunt circuit 5 is opened. Thus, after the fragment of the smart card is separated and the shunt circuit is broken, when the RFID tag is inserted into the reader coverage area, the RFID tag It produces a response signal containing a different (additional) identification code, which differs from the code generated by the RFID tag before the fragment is separated. Thus, it is possible to use only one RFID tag.

Another implementation option (see Fig. 2) of the solution is based on the fact that the smart card contains an RFID tag that has at least two shunt circuits (in Fig. 2 these are conductors 5 and 10), each of which is an electrical conductor or a conductive connection comprising at least one electrical conductor so that in the state of a broken contact of this conductor, the bypass circuit is in a state of broken contact. The sections of the electrical conductor 5 pass through two adjacent fragments 3 and 6 of the card so that in the normal undestroyed state of the card, conductor 5 is in the state of working contact, and in the state of the separated fragment 6 along line 7, the conductor is in a state of broken contact. In this case, the RFID tag in the working contact state of the shunt circuits 5 and 10 is made in the active state with the main identification code, and in the broken contact state of the shunt circuit 5, the same RFID tag has an active state with the first additional Identification code different from the main identification code . Thus, after separating the smart card fragment 6 and breaking the shunt circuit 5, when the RFID tag is inserted into the reader's coverage area, the RFID tag generates a response signal containing the first additional identification code.

The sections of the electrical conductor 10 pass through two adjacent fragments 3 and 13 of the card so that in the normal non-destroyed state of the card, the conductor 10 is in a state of working contact, and in the state of the separated fragment 13 along the separation line 14, this conductor is in a state of broken contact. In the broken contact state of the shunt circuit 10, the same RFID tag has an active state with a second additional identification code different from the main identification code and the above-mentioned first additional identification code. Thus, after separating the smart card fragment 13 along line 14 and breaking the shunt circuit 10, when the RFID tag is inserted into the reader's coverage area, the RFID tag generates a response signal containing a second additional identification code. In the FIG. In the diagram with two separation lines (7 and 14), the active state of the RFID tag with the third additional identification code is also possible. This active state of the RFID tag can be realized by the condition of opening both shunt circuits 5 and 10 (when separating fragments 6 and 13 from fragment 3 of the smart card).

An integrated circuit is possible when the inactive state of the RFID tag is maintained while maintaining the working contact of the shunt circuits 5 and 10. In this embodiment, when an intact smart card is inserted into the reader's coverage area, the RFID tag does not generate a response signal (“muffled state”) . After rupture of one or more shunt circuits, the RFID tag is activated and, when introduced into the reader, it generates a response signal containing the corresponding identification code.

The way to activate an additional identification code by separating the layers of the card’s petals implies (see Fig. 3) that the sections of the electrical conductor 5 are made in two card layers (on the main substrate, layer 1 and additional substrate, layer 16) connected to each other. In this case, the separation of the conductor 5 and activation of the additional code of the RFID tag can be performed so that the line for dividing the card into fragments runs along the border of the plane of contact of the layers (along the perimeter of the card, along the perimeter of the layer, lobe 16) and is located between two connected layers 1 and 16.

Technically, sections of the electrical conductor 5 can pass through adjacent fragments of the card through the line 7 dividing the card into fragments, which can be performed, for example, in the form of a broken curve, or along the line 7 of dividing the card into fragments (see Fig. 4), where at least at least one fragment (here, fragment 6) is made with one or more structural elements 15, protruding in the direction of the adjacent fragment 3, covering the shunt circuit conductor 5, passing along the separation line of 7 fragments, or inextricably connected to these conductor. The conductor 5 from pin 8 with one of the control terminals of the RFID tag chip passes through fragment 3, then along the separation line 7, then through element 15 of fragment 6, then again along the separation line 7 and along fragment 3 it is led to the second control terminal 9 of the RFID chip tags. When separating fragments, the structural element 15 breaks the conductor 5 of the shunt circuit, activating the state of the label with an additional identification code.

Lines 7 and 14 of dividing the map into fragments can be performed in any way, for example, in the form of a line of breaking or breaking, or tearing, or notching, or cut, or perforation, or changing the thickness of the map, or the boundaries of materials, or the boundaries of structural elements, or internal cavities, or boundary lines of contact of the layers. The location of the separation lines on the map may not be marked, in this case, their location, as well as the location of the fragments to be separated, the order of separation of fragments can be communicated to the user with instructions for using the map.

In the event that one of the fragments is structurally embedded in another fragment, for example, in the form of an enclosed bracket or loop covering the shunt conductor, or fastened with it, the line for dividing the card into fragments can have a complex shape and is located along the contact border, connecting fragments. In FIG. 5, breaking the shunt circuit is achieved by extracting fragment 6 from the card body (fragment 3) according to the principle of pulling “checks”.

Other options are possible in which the shunt circuit of the RFID tag has a complex configuration with access to the second additional layer of the substrate 16 and the activation of the additional code of the RF tag is carried out by breaking the circuit shunting the control terminals of the RFID tag chip (deactivating the outputs of the integrated circuit of the RFID tag , in the broken contact state of this shunt circuit of the main RFID tag, in accordance with the topology of the chip, switching the signal generation function to an additional RFID tag code). Other options are possible, where sections of the shunt circuits can be made in two layers of the card connected to each other. These described examples and other methods (not shown in the drawings) may have many implementation options that provide the technical result of the claimed solution. Sections of the electrical conductor can pass through adjacent map fragments along the line for dividing the card into fragments if, for example, one map fragment is made with one or more structural elements protruding in the direction of the adjacent fragment, covering the shunt circuit conductor passing along the fragment separation line, or is inextricably connected to this conductor and when separating fragments, such structural elements break the conductor of the shunt circuit.

The technical result of expanding the functionality of a contactless smart card, the activation of which occurs at a time necessary for the user at his request, is ensured by the fact that the above-described options for implementing the technical solution form the working conditions of the smart card in such a mode that when the fragments of the card are separated, the state is activated An RFID tag with an additional identification code different from the main identification code.

These conditions allow technically to carry several functions in one smart card: the primary and secondary, activated in the event of a user circumstance (for example, in an emergency, alarm or fire situation); the main and two or more additional ones that are activated in the event of a user circumstance (for example, in an emergency, terrorist threat, alarm situation or fire), while the main function is lost forever.

It is also possible to use a smart card as a hidden alarm. Access to the panic button in the event of a terrorist danger, robbery or gangster attack may be limited or absent, and the user always has access to the smart card. Smart card cracking activates the alarm mode if the RFID reader is active in the entire room or in the place where the organization’s employee who has been attacked is located. Secretly bringing a piece of the card to the nearest reader is also more likely than calling a security service using a telephone connection.

Claims (15)

1. A contactless smart card having a line for dividing the card into fragments containing an RFID tag, having a shunt circuit, which is an electrical conductor connected to the terminals of the integrated circuit of the RFID tag, and sections of this shunt circuit pass through two adjacent fragments of the card and structurally connected to the card so that in the normal undamaged state of the card, this shunt circuit is in a state of working contact, and in the state of the indicated adjacent adjacent fragments, this shunt circuit is in Toyan broken contact, characterized in that the contact state torn shunt circuit RFID-label has an active state in which the RFID-tag at presentation to a reader on its request generates a response signal with the identification code. 2. The contactless smart card according to claim 1, characterized in that the RFID tag in the state of the working contact of the shunt circuit is made in the active state with the main identification code, and in the state of the broken contact of the shunt circuit, the same RFID tag has an active state with an additional an identification code different from the primary identification code. 3. The contactless smart card according to claim 1, characterized in that the RFID tag in the state of the working contact of the shorting or shunt conductor is inactive, in which the RFID tag when presented to the reader does not generate a response signal to its request, but in A broken contact state The RFID tag is active. 4. The contactless smart card according to claim 1, characterized in that the smart card is configured to switch the integrated circuit of the RFID tag to generate an additional identification code instead of the main identification code if the level of the control signal is not lower than the threshold level on the corresponding contacts of the integrated circuit, defined by the topology of the chip. 5. The contactless smart card according to claim 1, characterized in that the smart card is designed in such a way that when the shunt circuit is closed, the potential difference between the control contacts of the integrated circuit of the RFID tag is insufficient to switch the circuit to the active state with an additional identification code, and the difference in electric potentials necessary for switching between the control contacts is generated by opening the shunt circuit in accordance with the topology of the chip. 6. The contactless smart card according to claim 1, characterized in that it contains an RFID tag that has two bridging circuits and sections of each of these bridging circuits pass through two corresponding adjacent fragments of the card and characterized in that the RFID tag is in a working state the contact of the shunt circuits is made in an inactive state, and in the condition of a broken contact of one of the shunt circuits, the same RFID tag, in accordance with the topology of the microcircuit, has an active state with the corresponding identification code, the value being identical munication code generated by the RFID-tag, because depends on what kind of schuntiruyuschaya chain is able to break contact. 7. The contactless smart card according to claim 1, characterized in that it contains an RFID tag that has two shunt circuits and sections of each of these shunt circuits pass through two corresponding adjacent fragments of the card and characterized in that the RFID tag is in working condition the contact of the shunt circuits is made in the active state with the main identification code, and in the condition of a broken contact of one of the shunt circuits, the same RFID tag, in accordance with the topology of the microcircuit, has an active state with the corresponding additional ID an identification code that is different from the main identification code, and the value of the additional identification code generated by the RFID tag depends on which shunt circuit is in a broken contact state. 8. The contactless smart card according to claim 1, characterized in that the card fragments are made in the form of layers connected to each other, the line for dividing the card into fragments runs along the boundary of the plane of contact of the layers and the card is configured to separate fragments in layers, and sections the shunt circuit is made in two layers of the card. 9. The contactless smart card according to claim 1, characterized in that the lines for dividing the card into fragments are made in the form of a line of break or break, or tear, or notch, or cut, or perforation, or change in card thickness, or material boundaries, or boundaries of structural elements, or internal cavities, or boundary lines of contact of layers. 10. The contactless smart card according to claim 1, characterized in that one of the fragments is structurally embedded in the other fragment in the form of an attached bracket or loop covering the shunt conductor, or fastened with it, while breaking the shunt circuit is implemented in such a way that the gap the contact of the shunt circuit is achieved by extracting the built-in fragment from the body of another fragment. 11. The contactless smart card according to claim 1, characterized in that the electrical conductor is connected in contact with the terminals of the integrated circuit of the RFID tag through the antenna. 12. The contactless smart card according to claim 1, characterized in that one of the fragments is made with a structural element protruding in the direction of the adjacent fragment, covering the electrical conductor from among the electrical conductors of the shunt circuits of the RFID tag, and designed to break this conductor during separation fragments. 13. A contactless smart card according to claim 1, characterized in that one of the fragments is made with a structural element protruding in the direction of the adjacent fragment, is inextricably connected to this conductor and is designed to rupture this conductor when separating the fragments. 14. The contactless smart card according to claim 1, characterized in that the RFID tag is structurally connected to the smart card. 15. The contactless smart card according to claim 1, characterized in that the RFID tag is integrated inside the smart card body.

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