KR101212182B1 - System and method for detecting an use of radio frequency card - Google Patents

Abstract

According to the present invention, when a specific person illegally remodels a traffic card reader to access a RF card provided in a user's mobile terminal in a short distance and pays in a non-contact manner, the antenna coil of the RF card according to the magnetic induction of the reader is used. The present invention relates to a method and a system for detecting an RF card usage, which can detect an induced current generated by the controller and inform a user of the use of the RF card.

According to an aspect of the present invention, there is provided a mobile terminal, comprising: a smart card for detecting a microcurrent generated by an induction coil and receiving a sensed current detection signal as a radio frequency signal related to RF payment is received from an RF reader through an antenna; A smart card interface unit for connecting with the smart card; A control unit for controlling an application function corresponding to the current sensing signal to be executed when the current sensing signal is received from the smart card; And an output unit configured to output a notification regarding the RF payment according to the application function.

According to the present invention, when a specific person illegally remodels a traffic card reader to access a mobile card of a user equipped with a smart card in a subway and perform RF payment in a non-contact manner, the user's mobile terminal vibrates or uses its own speaker. By automatically generating a message or alarm sound, the user can immediately recognize the illegal use of the RF card in the field and can easily cope with it.

In addition, by using the smart card provided in the user's mobile terminal illegally in a contactless manner, the designated contact, for example, the police station, to notify the illegal use of RF payments, thereby making it easier for criminals to use the smart card illegally. Can be arrested.

Smart Card, RF, Reader, Mobile, Traffic, Payment, Illegal, Inductive Current, Detection

Description

System and method for detecting an use of radio frequency card

The present invention relates to a method and system for detecting an unauthorized use of an RF card (Radio Frequency Card), and more particularly, a specific person illegally modify a traffic card reader (RF) provided in the user's mobile terminal Detecting the induced current generated through the antenna coil of the RF card according to the magnetic induction of the reader when near-field approaching the payment, the RF card use detection to inform the user of the use of the RF card It relates to a method and a system.

In general, the GSM (Global System for Mobile Communication) method uses a subscriber identity module (SIM) card, which is a kind of smart card, to easily cope with the change of mobile terminal or the change of the telecommunication service provider. . The SIM card has a microprocessor and a memory chip itself, and is used as a means of user authentication and personal information storage. Therefore, users can easily be provided with a communication service only by mounting the SIM card in the replaced mobile terminal if they have the SIM card.

Meanwhile, in the WCDMA environment, which has recently been spreading, the user authentication and global roaming functions provided by the SIM card are basic, and can support various financial transaction services such as transportation cards, mobile banking, stock trading, and payment. The Subscriber Identity Module (hereinafter referred to as "USIM") is used.

The USIM card accommodates a mobile electronic tag (RFID), and in the case of the RF payment function using the mobile electronic tag, a payment operation is performed only if an RF reader exists within a certain distance regardless of the power supply of the terminal.

However, smart cards such as USIM are passive devices operated by an external power supply. Therefore, even if the payment is made, the result is not notified to the mobile device.

Therefore, when a specific person illegally remodels an RF reader and accesses an RF card provided in a user's mobile terminal in a short distance and pays in a non-contact manner, the user may be injured without knowing this.

An object of the present invention for solving the above problems is that when a specific person illegally remodels a traffic card reader to access a RF card provided in a user's mobile terminal in a short distance and make a payment in a contactless manner, Using RF card illegal use detection method and system, smart card, mobile terminal, and its RF card, which can detect the induced current generated through the antenna coil of the RF card according to the induction to inform the user of the use of the RF card. It is to provide a detection method.

RF card use detection system according to the present invention for achieving the above object, RF reader for transmitting a radio frequency signal related to RF payment; A smart card generating a microcurrent by an induction coil as the radio frequency signal transmitted from the RF reader is received through an antenna; And a mobile terminal that notifies the user of the RF wireless payment upon sensing the microcurrent generated by the smart card.

On the other hand, the smart card according to the present invention for achieving the above object, the antenna for receiving a radio frequency signal transmitted from the RF reader; An induction coil surrounding the antenna and for inducing a microcurrent by the radio frequency signal; A current sensor for sensing the microcurrent; And a microprocessor that senses the microcurrent generated by the induction coil through the current sensing sensor and processes the RF payment when the microcurrent is detected.

On the other hand, the mobile terminal according to the present invention for achieving the above object, by detecting the radio frequency signal related to the RF payment from the RF reader through the antenna to detect the microcurrent generated by the induction coil, the sensed current sensing A smart card for transmitting a signal; A smart card interface unit for connecting with the smart card; A control unit for controlling an application function corresponding to the current sensing signal to be executed when the current sensing signal is received from the smart card; And an output unit configured to output a notification regarding the RF payment according to the application function.

Here, the output unit includes a vibration output unit, the control unit is to output the notification of the RF payment in a vibration.

The output unit may include a sound output unit, and the control unit outputs a message informing that the RF payment has been executed.

The output unit may include a display output unit, and the control unit may display a message indicating that the RF payment has been executed as a pop-up on the screen of the display output unit, or display the result of the RF payment processing on a screen so that a user can view the result. Output to display.

The apparatus may further include a storage unit for storing the RF payment processing result, and the controller may store the RF payment processing result in the storage unit.

The controller transmits a message indicating that the RF payment has been executed to a terminal set in advance as a text message or to a specific server or site through a communication network.

On the other hand, RF card use detection method according to the present invention for achieving the above object, RF card use detection method of a system including an RF reader, a smart card and a mobile terminal, (a) the RF reader is associated with RF payment Transmitting a radio frequency signal; (b) the smart card receiving the radio frequency signal via an antenna; (c) generating an induced current by an induction coil in response to receiving the radio frequency signal in the smart card; (d) transmitting a current sensing signal of detecting the induced current in the smart card to the mobile terminal; And (e) informing the user of the RF payment when the mobile terminal receives the current sensing signal.

On the other hand, RF card use detection method of the mobile terminal according to the present invention for achieving the above object, RF card use detection of the mobile terminal provided with a smart card for receiving a radio frequency signal related to RF payment transmitted from the RF reader A method comprising: (a) generating a microcurrent by an induction coil in response to receiving a radio frequency signal relating to the RF payment in the smart card; (b) detecting the microcurrent generated by the induction coil; And (c) executing the application function for notifying execution of the RF payment when the microcurrent is detected.

In addition, the step (c) may execute a vibration mode for informing the RF payment.

Also, in the step (c), a message indicating that the RF payment has been executed may be output through a speaker as a voice.

The application function may display a message indicating that the RF payment has been executed in a pop-up on a screen of a display unit, or display a result of the RF payment on a screen of the display unit so that a user can inquire. In this case, the step (c) further includes the step of storing the processing result of the RF payment.

In the step (c), a message indicating that the RF payment is executed may be transmitted to a predetermined terminal in a text message form, or may be transmitted to a specific server or a specific site through a communication network.

According to the present invention, when a specific person illegally remodels a traffic card reader to access a mobile card of a user equipped with a smart card in a subway and perform RF payment in a non-contact manner, the user's mobile terminal vibrates or uses its own speaker. By automatically generating a message or alarm sound, the user can immediately recognize the illegal use of the RF card in the field and can easily cope with it.

In addition, at the moment of illegally using the smart card provided in the user's mobile terminal in a non-contact manner, a predetermined contact, for example, a police station, may be notified of illegal use of the RF payment, thereby making it easier for the criminal to use the smart card illegally. You can be arrested.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, a non-contact smart card applied to the present invention will be described.

The reliability of smart cards is much higher than magnetic cards, but chip contact can fail due to inadvertent handling or frequent use on contact cards, which can damage gold contact points. The contactless card is not in physical contact with the card reader, and this problem does not occur because the card operates at a certain distance instead of being inserted into the reader.

A contactless card has an antenna in the card instead of a contact point, which not only communicates with the reader but also provides power. Contactless cards can be divided as shown in Table 1 according to the effective working distance that the card can operate with the reader.

division Kinds Abbreviation Related Standard Approach distance Frequency band Contactless
smart
Card Close coupling CIOC ISO10536 ~ 2mm 4.91 MHz Remote type
(Remote
Coupling) Proximity PIOC ISO / IEC14443 ~ 20 cm 13.56 MHz Proximity VIOC ISO / IEC15693 ~ 1 m 13.56 MHz Microwave (RF) To m 2.45 GHz

The chip derives its power from capacitive coupling in close coupling and inductive coupling in remote coupling. Electromagnetic induction works on the principle of a transformer in which one coil generates a current in another coil. The transmission frequency is usually in the range of several MHz. The chip can transmit a data signal by changing the resistance, which the card reader reads and interprets as a data signal.

Since writing to a card usually requires more than 10 times more power, the proximity distance is reduced to about 10 cm for electro-inductive cards and a few millimeters for electrostatic coupling. When a user passes by the reader, data transfer is limited to hundreds of bytes because the time given to complete a transaction is very short, about 200ms. These cards are therefore suitable for single applications that require faster transaction processing speeds than contact cards, such as toll cards or access controls.

The contactless cards mentioned above are called passive because they have to draw power from the outside. On the other hand, there are contactless cards powered by an internal battery, which are called active contactless cards. Active contactless cards are used in applications with longer distances between the card and reader, such as highway tollgates, and tend to be more expensive than contactless cards without built-in batteries.

In the embodiment of the present invention, a non-contact smart card is a microwave (RF) card, which is one of the remote cards, and has an antenna therein to receive a radio frequency signal transmitted from a reader to process RF payment. Explain.

1 is a configuration diagram schematically showing the overall configuration of an RF card use detection system according to an embodiment of the present invention.

Referring to Figure 1, RF card use detection system 100 according to the present invention, RF reader (Radio Frequency Reader) 110, smart card (Smart Card) 120 and the mobile terminal (Mobile Terminal) 130 It includes.

The RF reader 110 transmits a radio frequency signal related to RF payment to the smart card 120.

The smart card 120 generates a microcurrent by the induction coil as the radio frequency signal transmitted from the RF reader 110 is received through the antenna.

When the mobile terminal 130 detects a microcurrent generated from the smart card 120, the mobile terminal 130 performs an application function for notifying the user of RF payment. Here, what the application functions are will be described later. In addition, components not included in the independent claims of the present invention may be omitted as necessary.

2 is a block diagram schematically illustrating an internal configuration of a smart card according to an embodiment of the present invention.

Referring to FIG. 2, the smart card 120 according to the present invention includes an antenna 210, an induction coil 220, a microprocessor 230, and a current sensor 240.

The antenna 210 receives a radio frequency signal transmitted from the RF reader 110.

The induction coil 220 surrounds the antenna 210 and a microcurrent is induced by a radio frequency signal.

The microprocessor 230 detects the microcurrent generated by the induction coil 220 through the current sensor 240, and processes the RF payment when the microcurrent is detected.

The current sensor 240 transmits a detection signal detecting the micro current generated in the induction coil 220 to the microprocessor 230.

Figure 3 is a schematic diagram showing the internal configuration of a mobile terminal equipped with a smart card according to an embodiment of the present invention.

Referring to FIG. 3, the mobile terminal 130 according to the present invention includes a smart card 120, a smart card interface unit 310, a communication unit 320, an input unit 330, an output unit 340, and a control unit 350. , Storage 360, and the like.

As described above, the smart card 120 receives the microcurrent generated by the induction coil 220 as a radio frequency signal related to RF payment from the RF reader 110 through the antenna 210. Detects through and transmits the detected current detection signal to the mobile terminal 130.

The smart card interface 310 allows the smart card 110 to be inserted into and connected to the mobile terminal 130, and transmits the current detection signal generated from the smart card 120 to the controller 350.

The communication unit 320 is used to transmit and receive voice, text, video, and the like through a mobile communication network. For example, the communication unit 320 is used to transmit a text message indicating that the RF payment has been executed to the terminal set in advance through the mobile communication network.

The input unit 330 includes one or more key buttons, and transmits the key input signal pressed by the user to the control unit 350.

The output unit 340 includes displaying an operation state of the terminal on an LCD screen or an AMOLED screen, outputting an audio signal to a speaker device, or outputting vibration through a vibration motor.

Here, the output unit 340 includes a vibration output unit, the control unit 350 is to output the notification of the RF payment as a vibration.

In addition, the output unit 340 includes a sound output unit, and the controller 350 outputs a message informing that the RF payment has been executed.

In addition, the output unit 340 includes a display output unit, and the control unit 350 displays a message indicating that the RF payment has been executed as a pop-up on the screen of the display output unit, or allows the user to inquire the processing result of the RF payment. Display and output on the screen.

When the controller 350 receives the current sensing signal from the smart card 120 through the smart card interface unit 310, the controller 350 executes an application function corresponding to the current sensing signal.

The storage unit 360 stores data of the terminal or stores a result of RF payment processing. That is, the control unit 350 stores the result of the RF payment processing executed through the smart card 120 in the storage unit 360.

In addition, the controller 350 controls the message indicating that the RF payment is executed to be transmitted as a text message to a terminal which is set in advance, or to be transmitted to a specific server or site through a communication network.

4 is a flowchart illustrating an RF card usage detection method according to an embodiment of the present invention.

Referring to FIG. 4, when the RF reader 110 is approached within a certain distance, for example, within 10 cm by a specific person, to the mobile terminal 130 to which the smart card 120 is inserted and connected, the RF reader 110 may perform RF payment. The relevant radio frequency signal is transmitted to the smart card 120 (S410).

In this case, the smart card 120 inserted and connected to the mobile terminal 130 receives a radio frequency signal through the antenna 210 (S420).

Subsequently, the induction current is generated by the induction coil 220 in response to the reception of the radio frequency signal in the smart card 120 (S430).

Subsequently, the smart card 120 detects the generated induction current through the current detection sensor 240 and transmits the detected current detection signal to the mobile terminal 130 (S440).

Accordingly, when the mobile terminal 130 receives the current sensing signal from the smart card 120, the mobile terminal 130 notifies the user through the output unit 340 that the RF payment has been executed (S450).

In this case, the mobile terminal 130 may transmit a text message indicating that the RF payment has been executed through the communication unit 320 to a predetermined terminal, or transmit to a specific server or a specific site.

5 is a flowchart illustrating an RF card usage detection method of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 5, in the mobile terminal 130 according to the present invention, the smart card 120 provided therein first receives a radio frequency signal related to RF payment from the RF reader 110 through the antenna 210. (S510).

Accordingly, in the smart card 120 of the mobile terminal 130, the microcurrent is generated by the induction coil 220 according to the reception of the radio frequency signal related to the RF payment (S520).

When the mobile terminal 130 detects the microcurrent generated by the induction coil 220 through the current detection sensor 240 (S530-Yes), it executes an application function for notifying execution of RF payment (S540).

Here, the application function includes a function of executing a mode for outputting a vibration for notifying the RF payment or outputting a message for notifying that the RF payment has been executed through the speaker of the output unit 340 by voice.

In addition, the application function includes displaying a message indicating that the RF payment is executed on the AMOLED screen of the output unit 340 as a popup. In this case, the mobile terminal 130 may display the processing result of the RF payment on the screen of the output unit 340 so that the user can inquire. That is, the AMOLED screen may be a touch input screen, and may provide a screen for inquiring the RF payment processing result, and receive a command regarding the inquiry of the RF payment processing from the user through a touch operation.

In addition, the application function stores the result of the RF payment processing in the storage 360.

The application function may include transmitting a message indicating that the RF payment has been executed to a predetermined terminal in the form of a text message or transmitting to a specific server or a specific site through a communication network.

As described above, according to the present invention, when a specific person illegally remodels a traffic card reader to access a RF card provided in a user's mobile terminal in a short distance and pays in a non-contact manner, By detecting the induced current generated through the antenna coil of the RF card, it is possible to realize the RF card usage detection method and system, smart card, mobile terminal and its RF card usage detection method which can inform the user of the use of the RF card. have.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims and their equivalents. Only. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

Industrial Applicability The present invention can be applied to a system or service for accessing a smart card such as a transportation function or payment for a card reader in a contactless manner.

In addition, the present invention can be applied to a mobile terminal equipped with a smart card capable of performing a traffic function or payment.

In addition, the smart card provided in the mobile terminal can be applied to a service that can identify that the specific person is being used by the RF method, not the person.

1 is a configuration diagram schematically showing the overall configuration of an RF card use detection system according to an embodiment of the present invention.

2 is a block diagram schematically illustrating an internal configuration of a smart card according to an embodiment of the present invention.

Figure 3 is a schematic diagram showing the internal configuration of a mobile terminal equipped with a smart card according to an embodiment of the present invention.

4 is a flowchart illustrating an RF card usage detection method according to an embodiment of the present invention.

5 is a flowchart illustrating an RF card usage detection method of a mobile terminal according to an embodiment of the present invention.

Description of the Related Art

100: RF card illegal use detection system 110: RF reader

120: smart card 130: mobile terminal

210: antenna 220: induction coil

230: microprocessor 240: current sensor

310: smart card interface unit 320: communication unit

330: input unit 340: display unit

350: control unit 360: storage unit

Claims (15)

An RF reader for transmitting a radio frequency signal related to RF payment; A smart card generating a current by an induction coil in response to the radio frequency signal transmitted from the RF reader through an antenna; And A mobile terminal for notifying an RF wireless payment to a user when detecting the current generated from the smart card; RF card use detection system comprising a. An antenna for receiving a radio frequency signal transmitted from the RF reader; An induction coil surrounding the antenna and for inducing current by the radio frequency signal; A current sensor for sensing the current; And A microprocessor configured to sense current generated by the induction coil through the current sensor and to process RF payment when the current is detected; A smart card comprising: Smart card for sensing the current generated by the induction coil in response to the radio frequency signal related to RF payment from the RF reader through the antenna, and transmits the detected current detection signal; And A smart card interface unit for connecting with the smart card; A control unit for controlling an application function corresponding to the current sensing signal to be executed when the current sensing signal is received from the smart card; And An output unit configured to output a notification regarding the RF payment according to the application function; Mobile terminal comprising a. The method of claim 3, wherein The output unit includes a vibration output unit, wherein the control unit is characterized in that for outputting the notification of the RF payment in a mobile terminal. The method of claim 3, wherein The output unit includes a sound output unit, wherein the control unit is characterized in that the mobile terminal outputs a message informing that the RF payment has been executed. The method of claim 3, wherein The output unit includes a display output unit, and the control unit outputs a message indicating that the RF payment has been executed as a pop-up on a screen of the display output unit, or displays a processing result of the RF payment on a screen so that a user can inquire it. Mobile terminal, characterized in that output. The method of claim 6, And a storage unit for storing the RF payment processing result, wherein the controller stores the RF payment processing result in the storage unit. The method of claim 3, wherein The controller may be configured to transmit a message indicating that the RF payment has been executed to a predetermined terminal in a text message form or to a specific server or site through a communication network. An RF card use detection method of a system including an RF reader, a smart card, and a mobile terminal, (a) the RF reader transmitting an RF payment related radio frequency signal; (b) the smart card receiving the radio frequency signal via an antenna; (c) generating an induced current by an induction coil in response to receiving the radio frequency signal in the smart card; (d) transmitting a current detection signal detecting the induced current in the smart card to the mobile terminal; And (e) informing the user of the RF payment when the mobile terminal receives the current sensing signal; RF card use detection method comprising a. An RF card usage detection method of a mobile terminal having a smart card for receiving a radio frequency signal relating to RF payment transmitted from an RF reader, (a) generating a current by an induction coil in response to receiving a radio frequency signal related to the RF payment in the smart card; (b) sensing the current generated by the induction coil; And (c) executing an application function for notifying execution of the RF payment when the current is detected; RF card usage detection method of a mobile terminal comprising a. 11. The method of claim 10, In step (c), the RF card usage detection method of a mobile terminal, characterized in that for executing the vibration mode for informing the RF payment. 11. The method of claim 10, In the step (c), the RF card use detection method of a mobile terminal, characterized in that outputting a voice message through the speaker to inform that the RF payment has been executed. 11. The method of claim 10, The application function may display a message indicating that the RF payment has been executed as a pop-up on a screen of a display output unit, or output the result of the processing of the RF payment on a screen so that a user can view it. Method of detecting RF card use. The method of claim 13, The step (c) further comprises the step of storing the processing result of the RF payment RF card use detection method of a mobile terminal. 11. The method of claim 10, In the step (c), the RF card usage detection method of the mobile terminal, characterized in that a message indicating that the RF payment has been executed to a predetermined terminal to transmit a text message or to a specific server or site through a communication network .

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