KR101597799B1 - RF Smart Card of Fingerprint Type with Seperated Antenna and Dealing Method thereof - Google Patents

RF Smart Card of Fingerprint Type with Seperated Antenna and Dealing Method thereof Download PDF

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Publication number
KR101597799B1
KR101597799B1 KR1020140137676A KR20140137676A KR101597799B1 KR 101597799 B1 KR101597799 B1 KR 101597799B1 KR 1020140137676 A KR1020140137676 A KR 1020140137676A KR 20140137676 A KR20140137676 A KR 20140137676A KR 101597799 B1 KR101597799 B1 KR 101597799B1
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South Korea
Prior art keywords
card
antenna
smart card
fingerprint
fingerprint information
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KR1020140137676A
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Korean (ko)
Inventor
김승훈
고영훈
윤정수
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김승훈
고영훈
윤정수
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Application filed by 김승훈, 고영훈, 윤정수 filed Critical 김승훈
Priority to KR1020140137676A priority Critical patent/KR101597799B1/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

An RF fingerprint type smart card of a separated antenna structure comprises: a first antenna for receiving an RF signal emitted from an RF card reader; a power supply part for receiving an output signal of the first antenna and converting the output signal into a DC signal; an MCU which receives fingerprint information of a fingerprint sensor by electricity generation of the power source part and then judges whether the received fingerprint information coincides with fingerprint information stored in a memory, and drives a switching circuit if the received fingerprint information coincides with fingerprint information stored in the memory; a memory for storing registered fingerprint information; a fingerprint sensor for generating fingerprint information by driving of the MCU and transmitting the generated fingerprint information to the MCU; a switching circuit whose on-off is controlled by the MCU; a second antenna for performing data transmission and reception with the RF card reader by being applied with electricity by driving of the switching circuit; and a smart card chip for transmitting the card information to the RF card reader through the second antenna.

Description

Technical Field [0001] The present invention relates to an RF fingerprint type smart card having an antenna separation structure and a transaction method using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a smart card for paying a card through data communication with an RF card reader wirelessly. Generally, a chip and an antenna are constituted in a smart card, and the chip structure is activated by receiving energy radiated from an RF card reader through a wireless antenna. When an RF card reader transmits an RF signal to a smart card, the smart card charges energy and waits for a wake up state. The RF card reader transmits a command to the card to confirm the card access. The card transmits the response command to the RF card reader And the RF card reader confirms the card access by receiving the response command, and processing such as settlement is performed through data transmission / reception between the card and the RF card reader.

A conventional technique such as the present invention is disclosed in Korean Patent Registration No. 10-1047906 (published on July 8, 2011). 1 is a configuration diagram of an RF card operating system using the conventional fingerprint recognition sensor. In FIG. 1, reference numeral 200 in the RF card operating system using a conventional fingerprint recognition sensor is an RF card controller. The RF card controller 200 determines whether or not the RF card 100 is located in the local communication area of the system body 110. If the RF card 100 is located in the local communication area of the system body 110, (ID) to the system main body 110, and also controls the user to recognize the fingerprint and send it to the system main body 110. Reference numeral 210 denotes an RFID (Radio Frequency Identification) tag. The RFID tag 210 receives an electromagnetic wave transmitted from the system body 110 and informs the RF card controller 200 of the received electromagnetic wave. And transmits the information of the tag 210 itself to the system body 110. Reference numeral 220 denotes a fingerprint recognition sensor. The fingerprint recognition sensor 220 scans and recognizes a fingerprint according to the control of the RF card controller 200. Reference numeral 230 denotes a local communication unit. The local communication unit 230 transmits the fingerprint of the user recognized by the fingerprint recognition sensor 220 under short-range communication under the control of the RF card controller 200. Here, the short-range communication unit 230 performs near-field communication using any one of WLAN (Wireless Local Area Network) communication, Bluetooth communication, and ZigBee communication. Reference numeral 240 denotes a display section. The display unit 240 informs the user of the operation status of the RF card 100 by turning on the display lamp under the control of the RF card controller 200. [ For example, when the fingerprint recognition sensor 220 recognizes the fingerprint of the user, the display unit 240 illuminates the display lamp according to the control of the RF card controller 200 to inform the user of the fingerprint recognition . The conventional RF card 100 having such a configuration is configured such that when the RFID tag 210 is placed in the communication area of the system body 110, the RFID tag 210 receives the electromagnetic waves transmitted by the system body 110, The RF card controller 200 determines that the RF card 100 is located in the communication area of the system body 110 and controls the RFID tag 210 to store it in advance That is, the ID of the RFID tag 210 that is being transmitted. Then, the RF card controller 200 controls the display unit 240 to turn on a display lamp to inform recognition of the fingerprint. In this state, when the user confirms that the display lamp is turned on and the finger is brought into contact with the fingerprint recognition sensor 220, the fingerprint recognition sensor 220 scans the fingerprint of the user's finger, recognizes the fingerprint, And provides it to the RF card control unit 200. Then, the RF card controller 200 transmits the inputted fingerprint of the user to the system body 110 through the short range communication unit 230.

The RF card operating system using the conventional fingerprint recognition sensor configured as described above transmits the fingerprint information and the ID information from the card to the system body to confirm the fingerprint information and the ID. If they match, the next processing is performed. It is required to transmit power to the main body, which leads to a problem that power consumption must be large. In addition, the above-mentioned conventional technique has a problem that a large memory capacity is required for storing a large number of users' fingerprint information in the system body because the system body verifies the fingerprint information against the match. According to an aspect of the present invention, there is provided an RF fingerprint type smart card having an antenna separation structure, wherein the fingerprint information received from the fingerprint sensor matches the fingerprint information stored in the card, So that data communication can be performed. Another object of the present invention is to separate an antenna for driving a fingerprint control circuit and an antenna for driving a smart card chip to reduce an operation error.

The RF fingerprint type smart card of the present invention having the above-described object structure includes a first antenna for receiving an RF signal radiated from an RF card reader, a power unit for receiving an output signal of the first antenna and converting the received signal to DC, An MCU for receiving the fingerprint information of the fingerprint sensor by the power generation of the power supply unit to determine whether the fingerprint information matches the fingerprint information stored in the memory and for driving the switching circuit when the fingerprint information matches, A fingerprint sensor that generates fingerprint information and transmits the generated fingerprint information to the MCU; a switching circuit that is on-off controlled under the control of the MCU; and a second antenna that is powered by the switching circuit and transmits / And a smart card chip for transmitting the card information to the RF card reader through the second antenna A.

The RF fingerprint type smart card having the antenna structure of the present invention configured as described above can identify the user based on the fingerprint information, thereby preventing unauthorized use of the card. Further, the present invention can reduce the communication traffic with the RF card reader by determining whether the user's fingerprint is the registered fingerprint in the RF smart card, thereby reducing power consumption. Further, another effect of the present invention is to separate the smart card power supply antenna and the smart card chip antenna, thereby reducing operational errors.

1 is a configuration diagram of an RF card operating system using a conventional fingerprint recognition sensor,
FIG. 2 is a view showing a configuration of an RF fingerprint type smart card according to a first embodiment of the present invention,
FIG. 3 is a view showing a configuration of a second embodiment of an RF fingerprint type smart card of the present invention,
FIG. 4 is a control flowchart of a first embodiment of a card transaction method using an RF fingerprint type smart card of an antenna separation structure applied to the present invention.
5 is a control flowchart of a second embodiment of a card transaction method using an RF fingerprint type smart card of an antenna separation structure applied to the present invention.

The RF fingerprint type smart card and the card transaction method using the same will be described with reference to FIG. 2 to FIG. 5.

2 is a block diagram of a first embodiment of an RF fingerprint type smart card of the present invention. 2, the first embodiment of the RF fingerprint type smart card of the present invention includes a first antenna 10 for receiving an RF signal radiated from an RF card reader, a second antenna 10 for receiving an output signal of the first antenna, The fingerprint information of the fingerprint sensor attached to the smart card by the power generation of the power supply unit, receives the fingerprint information of the registered fingerprint information stored in the memory, A fingerprint sensor 40 for generating fingerprint information and transferring the fingerprint information to the MCU when the user's fingerprint exists, and an on-off control unit 40 for controlling the on- A second antenna 20 formed outside the first antenna to be able to transmit and receive data by turning on the switching circuit; And a smart card chip 70 that performs various processing such as card settlement by transmitting / receiving data to / from an RF card reader through a network. The switching circuit 80 attached to the second antenna 20 is initially turned off and is turned on by the MCU when power is applied to the MCU 50 and is thus turned on via the second antenna 20, And the smart card chip 70, as shown in FIG.

FIG. 3 is a block diagram of a second embodiment of the RF fingerprint type smart card of the present invention. 3, an RF fingerprint type smart card according to an embodiment of the present invention includes a first antenna 10 'for receiving an RF signal radiated from an RF card reader, a second antenna 10' for receiving an output signal of the first antenna, A memory 30 for storing the fingerprint information of the card owner, and a control unit 40 for receiving the fingerprint information of the fingerprint sensor by the power generation of the power supply unit and storing the fingerprint information of the registered cardholder stored in the memory A fingerprint sensor 40 for generating fingerprint information and transmitting the fingerprint information to the MCU when the fingerprint of the card user is present; A second antenna 20 formed inside the first antenna to be able to transmit and receive data by turning on the switching circuit, And is characterized in that a smart card consisting of a chip 70 for performing various processing, such as a credit card payment by transmitting and receiving data between the RF card reader. In this case, the switching circuit attached to the second antenna is initially turned off, and when the MCU is powered on, the switching circuit is turned on by the control of the MCU, and thus data transmission / reception is performed between the smart card chip and the RF card reader through the second antenna will be.

4 is a control flowchart of a first embodiment of a card transaction method using an RF fingerprint type smart card of an antenna separation structure applied to the present invention. 4, the card transaction method using the RF fingerprint type smart card of the antenna separation structure according to the present invention stores the card information of the smart card owner in the smart card chip and stores the fingerprint information in the memory of the smart card A step S12 of accessing the smart card to the RF card reader to allow the user to use the smart card, a step S13 of radiating the RF signal to the smart card in the RF card reader, A step S15 of receiving a finger signal of the fingerprint sensor and determining whether the fingerprint sensor is a fingerprint stored in the memory, A step S16 of turning on the switching circuit connected to the second antenna by the MCU of the smart card when the stored fingerprint is determined, (S17) of transmitting and receiving data through the tenna and starting processing. The processing may include performing processing such as payment of a traffic bill and purchase of goods at an RF terminal using a smart card. And if the fingerprint information received from the fingerprint sensor in step S15 differs from the registered fingerprint information, the process is terminated.

5 is a control flowchart of a second embodiment of a card transaction method using an RF fingerprint type smart card of an antenna separation structure applied to the present invention. 5, the card transaction method using the RF fingerprint type smart card of the antenna separation structure according to the present invention, the card information such as the ID of the smart card owner is stored in the smart card chip, A step S21 of allowing the user to access the smart card with the RF card reader, a step S23 of radiating the RF signal to the smart card by the RF card reader, a step S23 of radiating the RF signal to the smart card, (S24) of receiving an RF signal from the antenna and activating a power source (S24), determining whether the MCU of the smart card receives the fingerprint information of the fingerprint sensor and whether the fingerprint information is stored in the memory (S25) A step S26 of turning on the switching circuit connected to the second antenna by the MCU of the smart card and the step S26 of transmitting / receiving data to / from the RF card reader through the second antenna A step (S27) of transmitting the card holder ID to the RF card reader, a step S28 of checking whether the ID is the registered ID by checking the ID information received by the RF card reader, (S29) of transmitting and receiving data through the smart card chip and the second antenna to start processing. The above processing may include performing processing such as settlement of traffic charges and settlement of purchase goods using a smart card. If the fingerprint information received from the fingerprint sensor in step S25 is different from the fingerprint information stored in the memory, the process is terminated. And if the ID received in step S28 is not the registered ID, the process starts again from the beginning.

10, 10 ': first antenna, 20: second antenna,
30: memory, 40: fingerprint sensor,
50: MCU, 60: Power supply unit,
70: smart card chip, 80: switching circuit,
210: RFID tag, 240:

Claims (7)

1. A smart card for performing card settlement by performing RF communication with an RF card reader to transmit and receive data,
The smart card includes:
A first antenna (10) for receiving an RF signal emitted from an RF card reader;
A power supply unit 60 for receiving an output signal of the first antenna and converting the received signal to DC;
A memory (30) storing fingerprint information of the cardholder;
An MCU (50) for receiving fingerprint information of a fingerprint sensor attached to a smart card by generating a power source of the power source unit, comparing the registered fingerprint information stored in a memory and driving a switching circuit connected to the second antenna if the fingerprint information matches;
A fingerprint sensor 40 for generating fingerprint information and transmitting the fingerprint information to the MCU when the user fingerprint exists;
A switching circuit (80) controlled on-off under the control of the MCU and connected to the second antenna;
A second antenna (20) which is completely separated from the first antenna and is installed outward so that data can be transmitted / received by turning on the switching circuit;
And a smart card chip (70) connected to the second antenna (20) and transmitting / receiving data to / from an RF card reader through the second antenna to perform various processing such as card settlement.
1. A smart card for performing card settlement by performing RF communication with an RF card reader to transmit and receive data,
The smart card includes:
A first antenna 10 'for receiving an RF signal emitted from an RF card reader;
A power supply unit 60 for receiving an output signal of the first antenna and converting the received signal to DC;
A memory (30) storing fingerprint information of the cardholder;
An MCU (50) for receiving the fingerprint information of the fingerprint sensor by generating the power of the power supply unit, comparing the fingerprint information of the registered cardholder stored in the memory, and driving the switching circuit connected to the second antenna if they match;
A fingerprint sensor 40 for generating fingerprint information and transmitting the fingerprint information to the MCU when the fingerprint of the card user is present;
A switching circuit (80) controlled on-off under the control of the MCU and connected to a second antenna circuit;
A second antenna (20) completely separated from the first antenna and configured inside the first antenna so as to be able to transmit and receive data by turning on the switching circuit;
And a smart card chip (70) connected to the second antenna and performing various processing such as card settlement by transmitting / receiving data to / from an RF card reader through the second antenna.
In a card transaction method using an RF fingerprint type smart card,
The card transaction method using the fingerprint type smart card includes:
Storing the card information of the owner of the smart card in the smart card chip and storing the fingerprint information in the memory of the smart card (S11);
A step S12 of the user accessing the smart card reader to use the smart card;
(S13) radiating an RF signal to a smart card in an RF card reader;
(S14) a first antenna of the smart card receives an RF signal to activate a power source;
(S15) of determining whether the MCU of the smart card receives the fingerprint information of the fingerprint sensor and whether it is a fingerprint stored in the memory;
If it is determined that the fingerprint information is stored in the memory, the MCU of the smart card turns on the switching circuit connected to the second antenna (S16);
And a step (S17) of transmitting and receiving data through an RF card reader and a smart card chip via a second antenna (S17).
The method of claim 3,
The card transaction method using the fingerprint type smart card includes:
If the fingerprint information received from the fingerprint sensor in step S15 is different from the fingerprint information stored in the memory, the process ends.
In a card transaction method using an RF fingerprint type smart card,
The card transaction method using the fingerprint type smart card includes:
Storing the card information such as the ID of the smart card owner in the smart card chip and storing the fingerprint information in the memory of the smart card (S21);
A step S22 of the user accessing the smart card with the RF card reader;
A step S23 of radiating an RF signal to the smart card by the RF card reader;
A step (S24) of the first antenna of the smart card receiving the RF signal to activate the power source;
(S25) of determining whether the MCU of the smart card receives the fingerprint information of the fingerprint sensor and whether it is a fingerprint stored in the memory;
A step S26 of turning on the switching circuit connected to the second antenna by the MCU of the smart card if the fingerprint information is stored in the memory;
(S27) the smart card chip transmits and receives data to and from the RF card reader through the second antenna and transmits the card holder ID to the RF card reader;
(S28) of checking whether the ID information received by the RF card reader is a registered ID;
And a step (S29) of transmitting and receiving data through the smart card chip and the second antenna when the RFID card reader is determined as a registered ID (S29). .
6. The method of claim 5,
The card transaction method using the fingerprint type smart card includes:
When the fingerprint information received from the fingerprint sensor in step S25 is different from the fingerprint information stored in the memory, the method ends.
The method according to claim 6,
The card transaction method using the fingerprint type smart card includes:
If the ID received in step S28 is not the registered ID, the process starts again from the beginning.



KR1020140137676A 2014-10-13 2014-10-13 RF Smart Card of Fingerprint Type with Seperated Antenna and Dealing Method thereof KR101597799B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101706592B1 (en) 2016-09-21 2017-02-15 유비씨엔(주) Fingerprint type radio frequency smart card with enhanced security function and control method thereof
KR20200144751A (en) 2019-06-19 2020-12-30 (주)바이오스마트 RF smart card being capable of recognition of a fingerprint
KR20220080890A (en) 2020-12-08 2022-06-15 문제천 RF communication device having biometric sensor and physical hacking prevention function
KR20220080886A (en) 2020-12-08 2022-06-15 문제천 RF communication device having biometric sensor and dual power auto-switching function
KR20220085563A (en) 2020-12-15 2022-06-22 문제천 RF communication device having biometric sensor and single antenna, and control method for the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070059008A (en) * 2004-04-26 2007-06-11 이-스마트 테크놀로지스, 인크. Smart card for passport, electronic passport, and method, system, and apparatus for authenticating person holding smart card or electronic passport
KR20090121457A (en) * 2008-05-22 2009-11-26 김범규 Power control unit with rfid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070059008A (en) * 2004-04-26 2007-06-11 이-스마트 테크놀로지스, 인크. Smart card for passport, electronic passport, and method, system, and apparatus for authenticating person holding smart card or electronic passport
KR20090121457A (en) * 2008-05-22 2009-11-26 김범규 Power control unit with rfid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101706592B1 (en) 2016-09-21 2017-02-15 유비씨엔(주) Fingerprint type radio frequency smart card with enhanced security function and control method thereof
KR20200144751A (en) 2019-06-19 2020-12-30 (주)바이오스마트 RF smart card being capable of recognition of a fingerprint
KR20220080890A (en) 2020-12-08 2022-06-15 문제천 RF communication device having biometric sensor and physical hacking prevention function
KR20220080886A (en) 2020-12-08 2022-06-15 문제천 RF communication device having biometric sensor and dual power auto-switching function
US11934502B2 (en) 2020-12-08 2024-03-19 Ail Co., Ltd. RF communication device equipping with biometric sensor and preventing physical antenna hacking
KR20220085563A (en) 2020-12-15 2022-06-22 문제천 RF communication device having biometric sensor and single antenna, and control method for the same

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