JP2005128601A - Portable ic card adapter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable IC card adapter for enabling the use of authentication ID data stored in an IC card for remote authentication in various occasions for an improvement in convenience of the IC card. <P>SOLUTION: In this portable IC card adapter, a reading part 3, which is connected to a housed ID card 1 via a connection part 2 for reading the authentication ID data stored in the IC card 1, and a transmission part 4 transmitting the authentication ID data via radio transmission are housed in a portable case 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a portable IC card adapter.

  The applicant previously proposed a keyless entry system using a license converted into an IC card in Patent Document 1. In this conventional example, the license is a non-contact type IC card, and when the ID authentication device of the vehicle or the like confirms the ID of the license, the driver can get on the vehicle or start the engine or the like.

In addition to the effect described in Patent Document 1 that reliably prevents driving without a license, this conventional example has an authentication function inherent to one license and an authentication function in a keyless entry system. This has the advantage that multi-scene authentication is possible with a small number of ID holding media.
JP 7-150835 A

  However, in the above-described conventional example, since the communicable distance between the IC card and the ID authentication device is small, it is necessary to bring the IC card close to the ID authentication device at the time of authentication.

  In addition, for the purpose of improving security, a contact type IC card that uses mechanical contact as a communication condition is also used as an IC card. In this case as well, an operation of inserting the IC card into a predetermined slot or the like is performed. Therefore, it is not easy to use as a remote authentication medium at a remote location.

  In order to solve these problems, it is possible to incorporate a communication means having a sufficient communication distance in the IC card. However, in this case, it is necessary to supply power to the IC card, and convenience is reduced. Furthermore, there is a drawback that it is necessary to take measures against illegal information leakage through the communication means.

  The present invention has been made to solve the above problems, and makes it possible to use the ID data for authentication stored in the IC card for remote authentication in many scenes, thereby further improving the convenience of the IC card. An object is to provide a portable IC card adapter that can be improved.

According to the present invention, the object is
It is connected to the IC card 1 accommodated through the connection part 2,
A reading unit 3 for reading the ID data for authentication stored in the IC card 1;
A transmitter 4 for wirelessly transmitting the authentication ID data;
This is achieved by providing a portable IC card adapter in which is stored in the portable case 5.

  In the present invention, the IC card adapter A is configured to communicate with the IC card 1 accommodated in the case 5 and transmit the authentication ID data stored in the IC card 1 to the outside as an electromagnetic wave via the transmission unit 4. Is done. The case 5 is formed in a portable shape and size, such as a card holder. The connection part 2 with the IC card 1 arranged in the case 5 is appropriately determined depending on the type of the IC card 1. In the case of a contact type IC card, the electrode that mechanically contacts the module terminal 1 a of the IC card 1. In the case of the non-contact type IC card 1 configured as a terminal, it is configured as a communication element such as a coil that can communicate with an element that also serves as an electromotive force induction unit such as a coil disposed in the IC card 1 Is done.

  The reading unit 3 that reads the authentication ID data stored in the IC card 1 is configured to be able to read the authentication ID data beyond the security wall 1b of the IC card 1, and for example, the IC card 1 is used for access. When requesting an ID (password), the reading unit 3 includes a memory storing information on the access ID.

  The transmission unit 4 is configured to wirelessly transmit a distance necessary for remote authentication, and radio waves, infrared rays, and the like are used as a transmission medium. The ID data for authentication can be appropriately determined depending on the target of remote authentication in consideration of security reliability. When high security is required, biometric information such as fingerprints can be used. In addition, transmission from the transmission unit 4 is encrypted as necessary and decrypted on the ID authentication device 6 side.

The transmission of the authentication ID data to the ID authentication device 6 may be started, for example, by the user operating a switch provided on the adapter A side.
A receiving unit 7 for receiving an authentication request signal (Sr) wirelessly transmitted from the ID authentication device 6;
A device authenticating unit 8 for authenticating the ID authenticating device 6 by an authentication request signal (Sr);
When the device authentication unit 8 is configured to include the authentication start unit 9 that starts the reading operation when the device authentication is confirmed, remote authentication can be performed without requiring any special operation by the user, thereby improving usability. In addition, the power can be saved.

  According to the present invention, it is possible to wirelessly transmit the authentication ID data in the IC card 1 to the ID authentication device 6 side as needed by simply inserting or setting the IC card 1 in the case 5. As a result, one IC card 1 can be used for remote authentication in many situations, and the convenience of the IC card 1 is further improved.

  1 to 4 show an embodiment of the present invention that can be used in a remote keyless entry system of an automobile. As shown in FIG. 4, the remote keyless entry system includes an adapter A into which an IC card 1 possessed by a user is inserted, an ID authentication device 6 and a controller 11 arranged on the vehicle 10 side. The

  The IC card 1 used in this embodiment is a contact type IC card 1 having module terminals 1a arranged on the card surface as shown in FIG. 2, and as shown in FIG. 1 (a), Inside, an ID storage memory 1c for storing authentication ID data and a security wall 1b are mounted. For example, the security wall 1b can be constructed in software by a CPU (not shown) mounted on a mounting board in the IC card 1 and a ROM storing access conditions for the ID storage memory 1c.

  As shown in FIG. 2, the case 5 of the IC card adapter A to which the above IC card 1 is applied is formed in the shape of a card holder, and the outer periphery of the IC card 1 inserted from the slit-shaped card insertion portion 5a is removed. It comes into contact with the stop flange 5b and is prevented from coming off. With the IC card 1 inserted, the module terminal 1 a of the IC card 1 contacts the electrode terminal (connection portion 2) formed on the inner wall of the case 5 and is electrically connected to the circuit portion accommodated in the case 5. Connected.

  FIG. 1B shows a functional block diagram of the adapter A, and FIG. 3 shows an operation flow of the system including the authentication unit. In this example, the case where the door lock is set as the control target 12 is shown. However, the operation after the authentication in the authentication unit 6a of the ID authentication device 6 is completed is controlled by appropriately changing the control controller 11 side. 12 can be increased or the control content can be changed.

  The adapter A includes a receiving unit 7 that is driven by a power source 13 accommodated in the case 5 and operates under the control of the control unit 14. The functional component connected to the control unit 14 via the bus line 18 is realized by a microcomputer that runs according to a program describing a predetermined procedure. For the sake of convenience, in FIG. 1B, the power supply 13 and the like to be connected to the power supply line are also shown connected to the bus line 18.

  In this embodiment, the receiving unit 7 is configured as an LF receiving unit that receives an induced electromagnetic wave transmitted from the LF transmitting unit 6 b of the ID authenticating device 6, and the LF transmitting unit 6 b of the ID authenticating device 6 includes the vehicle 10. The LF signal is output as a request signal (authentication request signal (Sr)) with the operation on the door handle 10a as a trigger.

  When the receiving unit 7 receives the request signal (Sr) (step S1), in order to prevent malfunction due to interference or the like, first, the device authentication unit 8 stores the ID included in the request signal (Sr) in the memory unit 15. Searching and authenticating the ID authenticating device 6 that is transmitting the request signal (Sr) (step S2). An EEPROM is used in the memory unit 15 to prevent inadvertent rewriting, and an ID information registration unit (not shown) writes an ID for the request signal (Sr) and a password for the IC card 1 described later.

  When the ID authentication device 6 is authenticated in step S2, the control unit 14 next detects the state of the card detection switch 16 that is turned "ON" when the IC card 1 is inserted into the case 5 in order to detect the insertion of the IC card 1. (Step S3), and if the card detection switch 16 is “ON”, the authentication start unit 9 is activated and access to the IC card 1 is started.

  The reading unit 3 serving as a gate when accessing the IC card 1 includes a password setting unit 3a for setting a security release password for accessing the ID storage memory 1c beyond the security wall 1b constructed in the IC card 1. The data access unit 3b includes an interface unit for performing data communication with the IC card 1. When the reading unit 3 is activated, the password setting unit 3a first fetches the password from the memory unit 15 and outputs it to the security wall 1b of the IC card 1 (step S4).

  When a plurality of types of authentication ID data are stored in the ID storage memory 1c of the IC card 1, the reading unit 3 searches for the password obtained from the request signal (Sr) and sets the corresponding password as the password. By storing in the set unit 3a, versatility can be improved.

  If the password output in step S4 is authentic, the access right to the ID storage memory 1c of the IC card 1 is established, and thereafter the authentication ID data can be read via the data access unit 3b ( Step S5).

  When reading of the authentication ID data from the IC card 1 is completed as described above, transmission of authentication data by the transmission unit 4 is started. In the transmission operation, the transmission code generated in the transmission code generation unit 4a based on the authentication ID data is encrypted in the encryption unit 4b (step S6), and this is transmitted from the RF transmission unit 4c to the transmission antenna 4d. Transmission is performed as an RF wave (step S7).

  The transmission code transmitted as described above is received by the RF receiver 6c of the ID authentication device 6 (step S8). The received transmission code is authenticated by the authentication unit 6a (step S9), and when authenticated as a genuine ID (step S10), the authentication unit 6a notifies the control controller 11 of an authentication establishment signal.

  The operation of the controller 11 is appropriately determined by the control object 12. In this embodiment for controlling the door lock, the controller 11 that receives the authentication establishment signal drives an actuator such as a motor or an electromagnetic solenoid to drive the door. The operation is finished by driving the lock 12 in the unlocking direction (step S11).

  In this embodiment, the adapter A is provided with lock / unlock buttons 17a and 17b. When the lock button 17a or the unlock button 17b is pressed, the transmission unit 4 sends a lock / unlock signal to the controller 11 without requiring authentication by the authentication unit 6a on condition that the authentication is performed by the device authentication unit 8. The door is locked and unlocked.

1A and 1B are diagrams illustrating a functional block diagram of an IC card, and FIG. 1B is a functional block diagram of an adapter. It is a figure which shows an IC card adapter, (a) is a top view, (b) is a right view. It is a flowchart which shows operation | movement of a remote keyless entry system. It is explanatory drawing which shows the whole structure of a remote keyless entry system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 IC card 2 Connection part 3 Reading part 4 Transmission part 5 Case 6 ID authentication apparatus 7 Reception part 8 Apparatus authentication part 9 Authentication start part Sr Authentication request signal

Claims (2)

It is connected to the IC card accommodated through the connection part,
A reading unit for reading the authentication ID data stored in the IC card;
A transmitter for wirelessly transmitting the authentication ID data;
Is a portable IC card adapter that is housed in a portable case. A receiving unit for receiving an authentication request signal wirelessly transmitted from the ID authentication device;
A device authentication unit for authenticating the ID authentication device by an authentication request signal;
The portable IC card adapter according to claim 1, further comprising: an authentication start unit that starts the reading operation when device authentication is confirmed in the device authentication unit.

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