KR200402209Y1 - Door Locking Apparatus and Method for Operating Using Power from External Electromagnetic Wave - Google Patents

Abstract

The present invention relates to a digital door locking device and method that operates with power from an external electromagnetic wave, wherein in the digital door locking device, an authentication communication unit generates power by using electromagnetic waves from a portable terminal, and by the generated power By contactless communication with the portable terminal to receive authentication information. The controller performs authentication on the authentication information together with the registered identification information of the dual security module to control whether the government releases the locking state of the door.

Description

Door Locking Apparatus and Method for Operating Using Power from External Electromagnetic Wave}

The present invention relates to a digital door lock, and more particularly, to generate internal power using electromagnetic waves from an external portable terminal, and to use authentication information received from the external portable terminal using the generated power. The present invention relates to a digital door locking device and method for determining whether to release a door lock from a door.

In general, the digital door lock is installed in a place where security is required, for example, a general home or a company, and only a certain user who is allowed to enter the door can unlock the door.

1 is a block diagram of a conventional door locking system 100. The door locking system 100 includes a digital door lock 110 operated by a battery 111 and an integrated circuit (IC) card 120 in communication with the digital door lock 110.

In FIG. 1, the digital door lock 110 communicates with the IC card 120 in a contact or non-contact manner. The IC card 120 generally corresponds to a well-known smart card. The digital door lock 110 releases the locked state of the door when the authentication succeeds according to the authentication information received from the IC card 120.

In such a conventional door locking system 100, since the circuit in the digital door lock 110 for communication with the IC card 120 always operates, there is a problem that there is unnecessary power consumption. The digital door lock 110 frequently communicates with the IC card 120 to determine whether to unlock the door or maintain the locked state in the authentication process. At this time, since the communication and authentication by the contact / non-contact of the IC card 120 which are frequently performed is unpredictable, it is only in preparation for the communication between the digital door lock 110 and the IC card 120. It makes it difficult to design a prediction circuit that allows the circuitry in the digital door lock 110 to operate for the communication and authentication. Therefore, a circuit for communication and authentication of the digital door lock 110 and the IC card 120 is always operated, and at this time, power is consumed even when the communication and authentication process with the IC card 120 is not in progress. There is a problem.

Therefore, the present invention is to solve the above-described problems, the object of the present invention, in order to remove the unnecessary power consumption, the external communication at that time only during the authentication process to determine whether or not to communicate with the IC card, portable terminal, etc. It is to provide a digital door lock to operate the circuit with the power generated from the electromagnetic waves.

 Another object of the present invention is to provide a door locking system including the digital door lock in contactless communication with the portable terminal.

Digital door lock according to an aspect of the present invention for achieving the object of the present invention as described above, the controller for generating the unlocking control signal by performing authentication on the received authentication information with the registered identification information; A coasting unit for selectively maintaining or unlocking the locked state of the door according to the unlocking control signal; And an authentication communication unit which operates by electric power generated from an external electromagnetic wave, manages the registered identification information, and receives the authentication information through external contactless communication and transmits the authentication information to the controller.

The door locking system according to another aspect of the present invention for achieving the other object of the present invention as described above, digital to determine whether the door is released by performing authentication by contactless communication with the outside by the power generated from the external electromagnetic waves Door locks; And a portable terminal generating the electromagnetic wave and transmitting authentication information for the authentication through the contactless communication.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments. Like reference numerals in the drawings denote like elements.

2 is a block diagram of a door locking system 200 according to an embodiment of the present invention. Referring to FIG. 2, the door locking system 200 includes a digital door lock 210 and a portable terminal 220.

The digital door lock 210 may be installed in the door of each home to prevent illegal intruders from entering, or may be installed in the door of each company or the door of a specific area to prevent unauthorized persons from accessing the security area. Device. In particular, the digital door lock 210 may automatically lock or unlock the door by performing digital authentication.

In the present invention, the digital door lock 210 generates power from electromagnetic waves received from the mobile terminal 220, for example, a mobile communication terminal, and uses the generated power to be in contact with the mobile terminal 220. A method for performing the authentication by operating a predetermined circuit for communication is proposed. The electromagnetic wave from the mobile terminal 220 may be a radio frequency (RF) type high frequency signal used in a general IC card (or smart card). In the present invention, since the circuit operates only during the contactless communication and authentication, unnecessary waste of power is prevented as compared with the conventional method of operating the circuit.

The digital door lock 210 is configured to communicate with the IC card or the RFID (Radio Frequency Identification) card 310 in a contact or non-contact manner as shown in FIG. At this time, a predetermined circuit in the digital door lock 210 necessary for communication is always operated. Alternatively, a switch for controlling a predetermined circuit in the digital door lock 210 necessary for the communication to be operated only at the time of authentication may be used.

4 is a block diagram illustrating an example of the mobile terminal 220 of FIG. 2. Referring to FIG. 4, the portable terminal 220 includes a controller 410, an authentication communication unit 420, a mobile phone function module 430, and a communication port 440.

The mobile terminal 220 transmits / receives necessary data with the base station for mobile communication through the antenna 431, and sends a voice or text message to the user according to the operation of the controller 410 and the mobile phone function module 430. It may be a mobile communication terminal that can output. In addition, the controller 410 is responsible for the overall control of the portable terminal 220.

 In FIG. 4, the authentication communication unit 420 includes a short range wireless communication unit 422 and a security module 423.

The security module 423 has a form like a core chip of the IC card / RFID card 310 as shown in FIG. 5. For example, the security module 423 may include a central processing unit (CPU) 425, a read only memory (426), a random access memory (RAM) 427, and an electrically erasable ROM (EEPROM). 428 may be included. The CPU 425 is responsible for the overall control of the security module 423. The ROM 426 stores an overall system program for the operation of the security module 423, and the RAM 427 stores temporary data required for operation of internal data. The EEPROM 428 stores authentication information required for unlocking the digital door lock 210, for example, a user identification for user identification. Authentication information stored in the EEPROM 428 may be recorded from an external device, for example, a certain device that manages authentication information through the communication port 440.

The short-range wireless communication unit 422 generates a predetermined electromagnetic wave in the form of RF in order to communicate with the digital door lock 210, the digital authentication information stored in the EEPROM 428 of the security module 423 by the digital NFC method Transfer to the door lock 210.

FIG. 6 is a detailed block diagram of the digital door lock 210 of FIG. 2. Referring to FIG. 6, the digital door lock 210 includes a controller 610, a button 620, an alarm unit 630, a maritime unit 640, an authentication communication unit 650, and a switch. 660. The authentication communication unit 650 includes a power generation unit 652, a short range wireless communication unit 653, a dual security module 654, and a dual interface 655.

The button 620 is a device that can notify the user by pressing the visitor outside the door, when the button 620 is pressed, the controller 610 may control the alarm unit 630 to make a sound. . In addition, if it is determined that the authentication information received from the mobile terminal 220 is not included in the registered identification information from the dual security module 654 in the authentication process at the controller 610, the controller 610 According to the control of the alarm unit 630 may output a predetermined sound.

The power generation unit 652 of the authentication communication unit 650 receives the electromagnetic waves of the external portable terminal 220 through the antenna 651, and generates power from the received electromagnetic waves. Accordingly, the short-range wireless communication unit 653 and the dual security module 654 of the authentication communication unit 650 operates, so that the authentication communication unit 650 transmits authentication information through contactless communication with an external portable terminal 220. Receive. The authentication communication unit 650 transfers the authentication information received from the mobile terminal 220 to the controller 610.

The controller 610 receives the authentication information from the authentication communication unit 650, and authenticates the authentication information received from the mobile terminal 220 together with the registered identification information from the dual security module 654. To generate the unlock control signal. For example, when the received authentication information is included in the registered identification information, the unlock control signal is output as a logic high signal. In addition, if the received authentication information is not included in the registered identification information, the unlock control signal is output as a logic low signal.

The unlocking unit 640 may selectively maintain or unlock the locked state of the door according to the unlocking control signal from the controller 610. For example, when the unlock control signal is in a logic low state, the unlock 640 maintains the locked state of the door. Alternatively, when the unlock control signal is in a logic high state, the unlock unit 640 releases the locked state of the door to unlock the door. When the release control signal is a logic low signal, the alarm unit 630 may make a predetermined sound to notify an external intruder.

Hereinafter, the operation of the door locking system 200 of FIG. 2 will be described in more detail with reference to FIG. 8.

First, a user who wants to enter the digital door lock 210 installed in a certain door of a company security area or a home entrance place approaches the portable terminal 220 to the digital door lock 210. Accordingly, the short-range wireless communication unit 422 of the portable terminal 220 in the form of a certain electromagnetic wave in order to communicate with the digital door lock 210, the authentication information stored in the EEPROM 428 of the security module 423 Transfer to the digital door lock 210 by the NFC method (S810 of Figure 8).

In the digital door lock 210, the power generation unit 652 of the authentication communication unit 650 receives the electromagnetic wave from the portable terminal 220 through the antenna 651, and generates power from the received electromagnetic wave do. The short range wireless communication unit 653 and the dual security module 654 of the authentication communication unit 650 operate according to the power generated by the power generation unit 652 (S820 of FIG. 8).

Accordingly, the short range wireless communication unit 653 may receive the authentication information transmitted by the portable terminal 220 through contactless communication (S830 of FIG. 8). The authentication information received by the short range wireless communication unit 653 is temporarily stored in the dual security module 654 and then transmitted to the controller 610.

The controller 610 performs authentication on the authentication information received from the short range wireless communication unit 653 (S840 of FIG. 8). That is, the controller 610 determines whether the authentication information received from the short range wireless communication unit 653 is included in the registered identification information stored in the dual security module 654.

The dual security module 654 stores the registered identification information, that is, information about user IDs allowed to access the door. Information about user IDs stored in the dual security module 654 may be updated by a user.

For example, the dual security module 654 has a core chip form of an IC card (or RFID card) as shown in FIG. 7. That is, the dual security module 654 may include a CPU 701, a ROM 702, a RAM 703, an EEPROM 704, and an encryption module 705. The CPU 701 is responsible for the overall control of the dual security module 654. The ROM 702 stores an overall system program for the operation of the dual security module 654, and the RAM 703 stores temporary data required for operation of internal data. The EEPROM 704 stores the registered identification information. The encryption module 705 may encrypt data to be stored in the EEPROM 704 according to a predetermined algorithm, or may encrypt information output from the EEPROM 704.

Although having a configuration similar to that of FIG. 5, the dual security module 654 may not only communicate with the short range wireless communication unit 653, but also transmit and receive communication data with the dual interface 655 of FIG. 6. have.

The dual interface 655 of the authentication communication unit 650 of FIG. 6 directly communicates with an external IC card / RFID card 310 to receive authentication information. The received authentication information is temporarily stored in the dual security module 654 and then transmitted to the controller 610. Accordingly, in response to the authentication information received by the dual interface 655, the controller 410 performs authentication such as performing authentication on the authentication information received from the short range wireless communication unit 653. In this case, the authentication communication unit 650 does not generate power, and the dual interface 655 and the dual security module 654 always operate like a general IC card (or RFID card) communication method. In this case, the switch 660 of FIG. 6 may operate to remove waste of power consumed by the dual security module 654 and the dual security module 654. The switch 660 controls power to be supplied to the dual interface 655 and the dual security module 654 during direct communication with the IC card / RFID card 310. The switch 660 may be automatically operated in direct communication with the IC card / RFID card 310 to supply power to the dual interface 655 and the dual security module 654. In communication with the / RFID card 310, the user may press the switch 660 in a button manner so that power is supplied.

On the other hand, when it is determined that the authentication information received by the authentication communication unit 650 from the external portable terminal 220 is included in the identification information stored and registered in the dual security module 654 as described above, the controller 610. ) Outputs the release control signal of the logic high state (S850 of FIG. 8). Otherwise, the controller 610 outputs a release control signal in a logic low state.

Accordingly, when the unlocking control signal is a logic high signal, the unlocking unit 640 releases the locking state of the door to unlock the door (S860 of FIG. 8). Alternatively, when the unlocking control signal is a logic low signal, the unlocking unit 640 maintains the locked state of the door to prevent entry of an external intruder (S870 of FIG. 8). When the release control signal is a logic low signal, the alarm unit 630 may make a predetermined sound.

As described above, in the digital door lock 210 according to the present invention, the authentication communication unit 650 generates electric power using electromagnetic waves from the mobile terminal 220 and operates by the generated power. The terminal 220 receives contact information by contactless communication. The controller 610 performs authentication on the authentication information together with the identification information registered in the dual security module 654 and controls whether the government 640 releases the locking state of the door.

The locking / unlocking method of the digital door lock according to the present invention can be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention, or may be known and available to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

Although the present invention has been described with reference to the limited embodiments and drawings, 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 defined by the claims below and equivalents thereof.

As described above, in the digital door lock according to the present invention, since power is generated by contactless communication with the portable terminal and authentication is performed using the power, it is unnecessary in a corresponding circuit in the digital door lock in a period where authentication is not performed. There is an effect to save the power consumed.

1 is a block diagram of a conventional door locking system.

2 is a block diagram of a door locking system according to an embodiment of the present invention.

3 is a view for explaining another function of the system of FIG.

4 is a block diagram illustrating an example of the portable terminal of FIG. 2.

FIG. 5 is a detailed block diagram of the security module of FIG. 4.

FIG. 6 is a detailed block diagram of the digital door lock of FIG. 2.

FIG. 7 is a detailed block diagram of the dual security module of FIG. 6.

8 is a flowchart illustrating an operation of the door locking system of FIG. 2.

<Explanation of symbols for the main parts of the drawings>

200: door locking system

210: digital door lock

220: mobile terminal

310: IC card

422: near field communication unit

423: security module

630: alarm unit

640: sea government

650: authentication communication unit

660: switch

Claims (15)

A controller configured to generate a release control signal by performing authentication on the received authentication information together with the registered identification information; A coasting unit for selectively maintaining or unlocking the locked state of the door according to the unlocking control signal; And An authentication communication unit which operates by electric power generated from an external electromagnetic wave, manages the registered identification information, receives the authentication information through contactless communication with the outside, and transmits the authentication information to the controller. Digital door lock, characterized in that it comprises a. The method of claim 1, An alarm unit for outputting a predetermined sound if the received identification information is not included in the registered identification information according to the authentication; Digital door lock, characterized in that it further comprises. The method of claim 1, A button for informing the user by pressing the visitor outside the door Digital door lock, characterized in that it further comprises. 2. The digital door lock of claim 1, wherein the registered identification information is information about user IDs that are allowed access. The method of claim 1, wherein the authentication communication unit, A digital door lock, characterized in that for receiving the electromagnetic wave and the authentication information from an external portable terminal. 6. The digital door lock of claim 5, wherein the portable terminal is a mobile communication terminal. The method of claim 1, wherein the authentication communication unit, A power generator for generating the power from the external electromagnetic wave; A communication unit configured to receive the authentication information by performing contactless communication with an outside; And Security module for storing the registered identification information Digital door lock, characterized in that it comprises a. The method of claim 7, wherein the communication unit, The digital door lock, characterized in that for receiving the authentication information by communicating in the NFC method. The method of claim 7, wherein the security module, A digital door lock, which is a core chip of an IC card or an RFID card. The method of claim 7, wherein the authentication communication unit, Interface for receiving the authentication information by communicating with an external IC card or RFID card More, And the controller performs the authentication in response to the authentication information received by the interface. The method of claim 10, A switch controlling power to be supplied to the interface and the security module when communicating with the IC card or the RFID card Digital door lock, characterized in that it further comprises. A digital door lock configured to determine whether the door is unlocked by performing authentication by contactless communication with the outside by power generated from an external electromagnetic wave; And A mobile terminal for generating the electromagnetic wave and transmitting the authentication information for the authentication in the contactless communication Lock door locking system comprising a. The mobile terminal of claim 12, wherein the portable terminal comprises: A door lock system, characterized in that the mobile communication terminal. The portable terminal of claim 13, wherein the portable terminal comprises: A security module for storing authentication information; And Communication unit for generating the electromagnetic wave, and transmits the authentication information from the security module to the digital door lock by NFC method Lock door locking system comprising a. The method of claim 14, wherein the security module, A door lock system, wherein the chip is a core chip of an IC card or an RFID card.