KR100888982B1 - Access control device for data prodessing device using rfid - Google Patents

Abstract

The present invention relates to an access control of an information processing terminal, and more particularly, to an access control apparatus of an information processing terminal capable of automatically accessing and authenticating a user located in a predetermined area from the information processing terminal. An apparatus for controlling access of an information processing terminal according to an embodiment of the present invention includes a loop antenna arranged around a screen and a keyboard of a display device to secure an antenna radius corresponding to the screen size, and an RF signal through the loop antenna. Is received, communicates with a user tag that modulates the RF signal to return stored user data, and collects the user data from the user tag, and controls the user's access to an information processing terminal using the user data. It characterized in that it comprises a middleware to be performed. Therefore, an appropriate antenna radius can be secured effectively.

Contactless recognition system, wireless identification system, access control

Description

Access control device for information processing terminal using RFCID {ACCESS CONTROL DEVICE FOR DATA PRODESSING DEVICE USING RFID}

1 is a diagram illustrating a relationship between a radius of a loop antenna and a magnetic field strength.

2 is a block diagram illustrating an apparatus for controlling access of an information processing terminal according to an embodiment of the present invention.

3 is a diagram illustrating a connection between an access control device and an information processing device according to an embodiment of the present invention.

4 is a diagram illustrating a connection between an access control device and an information processing device according to another embodiment of the present invention.

5 is a diagram illustrating a connection between an access control device and an information processing device according to another embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

210: loop antenna 220: reader

230: middleware

The present invention relates to an access control of an information processing terminal, and more particularly, to an access control apparatus of an information processing terminal capable of automatically accessing and authenticating a user located in a predetermined area from the information processing terminal.

The spread of information processing terminals, such as computers, has become commonplace, and many people use them in almost every place around us, such as homes, government offices, banks, offices, and department stores.

In particular, since an important task is often handled by an information processing terminal such as a computer in a government office or a bank, an access control of an information processing terminal that prevents an unauthorized user from using the information processing terminal is a very important problem.

That is, a serious problem may occur when an unauthorized third party operates a bank computer that handles hundreds of millions of dollars while a bank clerk is away. Alternatively, while a public official who is using a computer for important work is away from his desk for a while, an unauthorized third party can manipulate the computer to copy, delete, or change data, which can cause great confusion. have.

In the related art, a technology for controlling access to an information processing terminal of an unauthorized third party by introducing a magnetic card storing user information in a bank or the like has been introduced. However, this method has a very troublesome problem because a legitimate user must pass the magnetic card to the reader every predetermined time.

In addition, technologies such as allowing a user to input a password at predetermined time intervals, or authenticating an access to an information processing terminal by recognizing a user's fingerprint have been introduced, but these methods are also very cumbersome and face the user's appearance.

Meanwhile, a contactless recognition system using near field communication such as RFID (Radio Frequency Identification) has been developed and widely used. RFID recognition systems, which have appeared since the 1980s, are also referred to as dedicated short range communication (DSRC) or wireless identification systems.

A radio identification system consisting of a reader / reader with a read / decode function and a radio frequency identification tag (RF ID tag), operating software, and a network, processes information by identifying a thin flat tag attached to an object.

RF tags consist of a semiconductor-made transponder chip and an antenna, which are passive and active. While passives operate by receiving energy from radio signals from the reader without the need for an internal power source, the actives have a built-in RF tag cell to operate on their own. It is also classified into a chip tag using a silicon semiconductor chip and a chipless tag composed only of an LC device, a plastic or a polymer device.

Radio frequency identification does not require direct contact or scanning in the visible band as a bar code. Because of these advantages, it is evaluated as a technology to replace the bar code, and the scope of application is expanding.

Loop antennas are used in contactless recognition systems. The radius of the loop antenna has a great influence on the communication distance of the contactless recognition system. That is, in the contactless recognition system using the loop antenna, it is very important to secure an appropriate loop antenna radius that provides a desired communication distance.

In the case of conventional user authentication using a contactless recognition system to control access to an information processing terminal, it is very troublesome because a user must bring his ID card to a reader for user authentication because a sufficient antenna radius is not secured. There was this.

Therefore, by securing a proper antenna radius to ensure the desired communication distance, the user can automatically control the user access to the information processing terminal by performing the user authentication for the user within a predetermined distance without taking a separate action. There is an urgent need for new access control devices.

The present invention has been made to solve the problems of the prior art as described above, even if the user is located within a predetermined distance from the information processing terminal even if the user does not take a separate operation to automatically perform the user authentication to control the user access The purpose is to make it possible.

In addition, an object of the present invention is to effectively secure the desired antenna radius by using the area of the monitor or keyboard.

In addition, it is an object of the present invention to efficiently perform access control of an information processing terminal using a conventional monitor or keyboard without adding a cumbersome device.

In order to achieve the above object and solve the problems of the prior art, the access control device of the information processing terminal of the present invention, a loop antenna disposed around the screen of the display device to secure the antenna radius corresponding to the screen size; A reader configured to collect the user data from the user tag by communicating with a user tag that modulates the RF signal and returns stored user data when the RF signal is received through the loop antenna; And middleware for controlling the user's access to the information processing terminal connected to the display device using the user data.

In this case, the loop antenna may communicate with the user tag only when the user tag is within a predetermined distance from the display device.

At this time, a loop antenna is installed inside the display device, and communication between the loop antenna and the information processing terminal through the reader and the middleware is performed using any one of a DVI terminal and a D-SUB terminal of the information processing terminal. Can be performed.

In addition, the access control device of the information processing terminal according to another embodiment of the present invention is a loop antenna disposed around the keyboard to secure the antenna radius corresponding to the keyboard size; A reader configured to collect the user data from the user tag by communicating with a user tag that modulates the RF signal and returns stored user data when the RF signal is received through the loop antenna; And middleware for controlling the user's access to the information processing terminal connected to the keyboard by using the user data.

At this time, the loop antenna may communicate with the user tag only when the user tag is within a predetermined distance from the keyboard.

At this time, a loop antenna is installed inside the keyboard, and communication between the loop antenna and the information processing terminal through the reader and the middleware is performed using any one of a USB terminal and a PS / 2 terminal of the information processing terminal. Can be.

At this time, the middleware may perform user authority authentication using a user identifier included in the user data, and may control access of the user to the information processing terminal according to the user authority authentication result.

In this case, the information processing terminal may be a personal computer (PC), a laptop computer, a notebook computer, a set-top box, or a game machine.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a relationship between a radius of a loop antenna and magnetic field strength.

Referring to FIG. 1, the change in the magnetic field strength (field strength) of the loop antenna according to the radius change of the loop antenna is illustrated in a graph. The graph shown in FIG. 1 is an example in which N (number of windings) is 1 and I (coil current) is 1A.

In Figure 1, x represents the distance from the loop antenna. That is, referring to FIG. 1, the magnetic field strength increases as the radius of the loop antenna increases at a point away from the loop antenna by a predetermined distance.

That is, the radius of the loop antenna must be sufficiently secured to secure sufficient magnetic field strength (field strength) at a distance of 20 to 30 cm or more from the loop antenna.

For example, in the case of x = 30cm in Figure 1, the radius of the loop antenna should be secured 20cm or more to ensure the magnetic field strength of 1H or more. This means that if the magnetic field strength is greater than 1H to correctly identify the RFID tag, it means that a loop antenna having a diameter of 40 cm or more should be used to normally identify the RFID tag at a distance of 30 cm from the loop antenna.

That is, in order to sufficiently increase the identification distance of the RFID tag, an area sufficient to install a loop antenna of about 20 to 30 cm should be secured. In the present invention, the loop antenna may be installed around the screen or keyboard around the display device such as a monitor. Sufficient radius of the loop antenna can be secured.

Of course, as can be seen from FIG. 1, when the radius of the loop antenna becomes too large, the magnetic field strength (field strength) decreases. However, when the distance from the loop antenna is greater than 20 cm, the tendency is smaller as the distance from the loop antenna is larger, and the magnetic field strength tends to increase as the radius of the loop antenna is larger.

2 is a block diagram illustrating an apparatus for controlling access of an information processing terminal according to an embodiment of the present invention.

2, the apparatus for controlling access of an information processing terminal according to an embodiment of the present invention includes a loop antenna 210, a reader 220, and middleware 230.

In this case, the reader 220 may be an RFID reader, and the middleware 230 may be an RFID middleware.

The loop antenna 220 is disposed around the screen of the display device to secure an antenna radius corresponding to the screen size.

Since the width and length of the screen of a display device such as a monitor are generally 20 cm or more, a sufficient antenna radius can be secured by arranging a loop antenna around the screen of the display device.

In some embodiments, the loop antenna 210 may be installed inside the display device such as a monitor. That is, the loop antenna 210 may be embedded in the monitor. In this case, communication between the loop antenna and the information processing terminal through the reader 220 and the middleware 230 may be performed using any one of a DVI terminal and a D-SUB terminal of the information processing terminal.

According to an embodiment, the loop antenna 210 may be installed inside the safety glasses attached to the display device such as a monitor. That is, the loop antenna 210 may be attached to the display device such as a monitor as a separate device independent of the display device such as a monitor. In this case, the communication between the safety glasses and the information processing terminal may be performed using a universal communication port such as a universal serial bus (USB) port of the information processing terminal.

In some embodiments, the loop antenna 210 may be disposed around the keyboard. In this case, the loop antenna 210 may secure an antenna radius corresponding to the keyboard size. At this time, the communication between the loop antenna and the information processing terminal through the reader and the middleware may be performed using any one of a USB terminal and a PS / 2 terminal of the information processing terminal.

In general, a keyboard used in a general desktop computer has a width of 30 cm or more and a length of 13 cm or more, so that a sufficient antenna radius can be secured even when a loop antenna is disposed around the keyboard.

The reader 220 collects the user data from the user tag through the loop antenna 210 by communicating with a user tag that modulates the RF signal and returns stored user data when the RF signal is received.

In this case, the user tag may be an RFID tag. At this time, the RFID tag may be an ID card provided for user authentication.

When an RFID tag receives an RF signal, the RFID tag modulates the phase and amplitude to return the data stored in the tag to the reader. In this case, the data stored in the tag may be user data including a user identifier.

The reader 220 is a device that communicates with the user tag to read information of the user tag, and transmits the information collected from the tag to the middleware 230.

The middleware 230 functions to collect, control, and manage data continuously generated in the reader, and to control the user's access to the information processing terminal connected to the display device by using the user data.

In this case, the middleware 230 may operate in conjunction with an information processing terminal such as a computer. That is, the middleware 230 may use the user data to perform some of the functions necessary for the user's access control to the information processing terminal connected to the display device to be performed in the information processing terminal.

At this time, an operation of the input device of the information processing terminal may be stopped for an unauthorized user during the access control of the user, only access to predetermined files may be disabled, and the information processing terminal itself may not be operated. It may be.

In this case, the middleware 230 may perform user authority authentication using a user identifier included in the user data, and may control the access of the user to the information processing terminal according to the user authority authentication result. have.

The middleware 230 supports easy communication through an environment configuration with hardware components such as an RFID reader, and provides a user interface for managing such hardware. The middleware 230 may perform a function of processing data generated by the RFID reader from the tag, that is, appropriately refining values, in which the same tag is repeatedly read or incorrectly read by the reader, through a filtering technique.

In some embodiments, the reader 220 and the middleware 230 may be included in the information processing terminal.

As described above, since the loop antenna of the present invention can be installed around the monitor or the keyboard to secure a sufficient antenna radius, the reader and the tag automatically communicate when the user who has the user tag is located in a predetermined area around the monitor or the keyboard. User authentication can be performed.

Therefore, according to the present invention, the user can effectively authenticate the user without the hassle of scratching the magnetic card on the reader at every predetermined time, bringing the ID card to the reader, or inputting the user password. You can get

3 is a diagram illustrating a connection between an access control device and an information processing device according to an embodiment of the present invention.

Referring to FIG. 3, since the loop antenna 310 is disposed around the screen of the monitor 320, it can be seen that the loop antenna 310 is embedded in the monitor 320 itself. That is, when the monitor 320 is manufactured, the loop antenna 310 is disposed around the screen of the monitor 320 and manufactured.

In the embodiment of FIG. 3, the reader and the middleware connected to the loop antenna 310 may be installed inside the monitor 320, may be installed inside the information processing terminal 330, or may include the monitor 320 and the information processing terminal ( It may be installed in a separate device installed between the 330.

In this case, the monitor 320 and the information processing terminal 330 may be connected through a D-SUB terminal or a DIV terminal.

As shown in FIG. 3, the loop antenna 310 is disposed around the screen of the monitor 320 to secure an antenna radius corresponding to the screen size.

The reader 320 and the middleware which may be located inside the monitor 320, the information processing terminal 330, or a separate device collect user data through the loop antenna 310, and use the collected user data to collect the user data. The user's access control to 330 is performed.

According to an exemplary embodiment, the monitor 320 may further include a separate general-purpose communication port such as a USB port other than the D-SUB terminal or the DIV terminal to perform communication between the loop antenna 310 and the information processing terminal 330. have.

4 is a diagram illustrating a connection between an access control device and an information processing device according to another embodiment of the present invention.

Referring to FIG. 4, when the loop antenna 410 is disposed around the screen of the monitor 420, it can be seen that the loop antenna 410 is embedded in the safety glasses (or security sheet) 415 attached to the monitor 420. That is, in the embodiment shown in Figure 4, the monitor 420 is generally used, it is easy to manufacture because the loop antenna 410 is installed in the safety glasses 415 attached to the monitor 420.

In the embodiment of FIG. 4, the reader and the middleware connected to the loop antenna 410 may be installed in a separate device 440 or may be installed in the information processing terminal 430.

In this case, the loop antenna 410 and the information processing terminal 430 inside the safety glasses 415 may be connected through a universal communication port such as a USB port.

In this case, the monitor 420 and the information processing terminal 330 may be connected through a D-SUB terminal or a DIV terminal.

As shown in FIG. 4, the loop antenna 410 installed in the eye shield 415 is disposed around the screen of the monitor 420 to secure an antenna radius corresponding to the screen size.

The reader and the middleware in the information processing terminal 430 or the separate device 440 collect user data through the loop antenna 410 and use the collected user data to collect the user data. Allow access control to be performed.

5 is a diagram illustrating a connection between an access control device and an information processing device according to another embodiment of the present invention.

Referring to FIG. 5, it can be seen that the loop antenna 510 is embedded in the keyboard 520 and disposed around the keyboard 520. That is, when the keyboard 520 is manufactured, the loop antenna 510 is disposed around the keyboard 520 and manufactured.

In the embodiment of FIG. 5, the reader and middleware connected to the loop antenna 510 may be installed inside the keyboard 520, may be installed inside the information processing terminal 530, or may include the keyboard 520 and the information processing terminal ( It may be installed in a separate device installed between the 530.

In this case, the keyboard 520 and the information processing terminal 530 may be connected through a PS / 2 terminal or a USB terminal.

In some embodiments, the keyboard 520 may further include a general communication port such as a separate USB port to perform communication between the loop antenna 510 and the information processing terminal 530.

As shown in FIG. 5, a loop antenna 510 installed in the keyboard 520 is disposed around the keyboard 520 to secure an antenna radius corresponding to the keyboard size.

The reader and middleware inside the keyboard 520 or the information processing terminal 530 collect user data through the loop antenna 510 and control the user's access to the information processing terminal 530 using the collected user data. To be performed.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

In the method of controlling access of an information processing terminal of the present invention, even if a user does not need to perform a separate operation, the user can be automatically controlled by performing user authentication simply by being located within a predetermined distance from the information processing terminal.

In addition, the present invention can effectively secure the desired antenna radius by using the area of the monitor or keyboard.

In addition, the present invention can efficiently perform the access control of the information processing terminal by using a conventional monitor or keyboard without the cumbersome addition of devices.

Claims (11)

A loop antenna disposed around a screen of the display device to secure an antenna radius corresponding to the screen size; A reader configured to collect the user data from the user tag by communicating with a user tag that modulates the RF signal and returns stored user data when the RF signal is received through the loop antenna; And Middleware for performing the user's access control to the information processing terminal connected to the display device using the user data Including, The loop antenna communicates with the user tag only when the user tag is within a predetermined distance from the display device. The loop antenna is installed inside the safety glasses attached to the display device, And the communication between the safety glasses and the information processing terminal is performed using a universal communication port of the information processing terminal. delete The method of claim 1, The middleware is configured to perform user authority authentication using a user identifier included in the user data, and to perform the access control of the user to the information processing terminal according to the user authority authentication result. Access control device of the terminal. The method of claim 3, And the user tag is an RFID tag, the reader is an RFID reader, and the middleware is an RFID middleware. The method of claim 1, The loop antenna is installed inside the display device, and the communication between the loop antenna and the information processing terminal is performed using any one of a DVI terminal and a D-SUB terminal of the information processing terminal. Access control device. delete A loop antenna disposed around the keyboard to secure an antenna radius corresponding to the keyboard size; A reader configured to collect the user data from the user tag by communicating with a user tag that modulates the RF signal and returns stored user data when the RF signal is received through the loop antenna; And Middleware for controlling the user's access to the information processing terminal connected to the keyboard using the user data Access control apparatus for an information processing terminal comprising a. The method of claim 7, wherein And the loop antenna communicates with the user tag only when the user tag is within a predetermined distance from the keyboard. The method of claim 8, The middleware is configured to perform user authority authentication using a user identifier included in the user data, and to perform the access control of the user to the information processing terminal according to the user authority authentication result. Access control device of the terminal. The method of claim 9, And the user tag is an RFID tag, the reader is an RFID reader, and the middleware is an RFID middleware. The method of claim 8, The loop antenna is installed inside the keyboard, and the communication between the loop antenna and the information processing terminal is performed using any one of a USB terminal and a PS / 2 terminal of the information processing terminal. Access control device.

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