KR20020081168A - an electronic door lock - Google Patents

an electronic door lock Download PDF

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Publication number
KR20020081168A
KR20020081168A KR1020020053339A KR20020053339A KR20020081168A KR 20020081168 A KR20020081168 A KR 20020081168A KR 1020020053339 A KR1020020053339 A KR 1020020053339A KR 20020053339 A KR20020053339 A KR 20020053339A KR 20020081168 A KR20020081168 A KR 20020081168A
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KR
South Korea
Prior art keywords
fingerprint
door
password
door lock
wireless signal
Prior art date
Application number
KR1020020053339A
Other languages
Korean (ko)
Inventor
김석균
임재권
Original Assignee
김석균
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김석균 filed Critical 김석균
Priority to KR1020020053339A priority Critical patent/KR20020081168A/en
Publication of KR20020081168A publication Critical patent/KR20020081168A/en
Priority to AU2003214670A priority patent/AU2003214670A1/en
Priority to PCT/KR2003/000538 priority patent/WO2004020768A1/en
Priority to CNA031208851A priority patent/CN1482331A/en

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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/30Individual registration on entry or exit not involving the use of a pass
    • G07C9/32Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/33Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a password
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00571Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/30Individual registration on entry or exit not involving the use of a pass
    • G07C9/32Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/37Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition

Abstract

PURPOSE: An electronic door lock is provided to easily implement an input of secret number or password by improving the configuration of door phone. CONSTITUTION: An electronic door lock includes a telephone(1) provided with a handset(11), a speaker(12), an input part(13) composed of a plurality of number keys and function keys, a monitor(14) and a door open and close key(15), a door phone(2) provided with a wireless signal transmitter and a door lock(3) provided with a wireless signal receiver(31) for operating the open and close of the door by receiving a control signal transmitted from the wireless signal transmitter and a door open and close operator(32) for opening and closing the door in response to the control signal received from the wireless signal receiver(31). The door phone(2) further includes a secret number input part(21) composed of a key such as a numeral or character to input the secret number or the password, a fingerprint recognition part(22) for identifying a fingerprint of a user, a camera(23) installed to easily identify visitors, a camera and optical part for converting the image of the fingerprint of visitors into an electrical signal, a fingerprint image data processor for comparing the registered fingerprint by analyzing the inputted fingerprint, a controller for outputting various control signals by determining the recognized fingerprint and a memory for storing the secret number with a plurality of digits and the fingerprint information of many people.

Description

전자식 도어록{an electronic door lock}Electronic door lock

본 발명은 전자식 도어록에 관한 것으로, 보다 상세하게는 모니터와 도어개폐스위치 및 통상의 숫자나 기호 등을 입력시킬 수 있도록 다수의 키를 가진 전화기와, 문옆의 벽면에 설치되어 음성의 입출력 및 영상의 입력, 지문 입력 및 확인과 비밀번호나 암호 등을 입력 및 확인할수 있게 한 도어폰, 상기 도어폰 및 전화기에 의해 제어되는 도어록으로 구성하여 사용의 편리성과 원활한 보안유지, 그리고 외부로부터의 침입을 더욱 안정적으로 예방할 수 있게 한 것이다.The present invention relates to an electronic door lock, and more particularly, a monitor, a door opening and closing switch, a telephone having a plurality of keys for inputting ordinary numbers and symbols, and a wall mounted beside a door to provide input and output of audio and video. It is composed of door phone that can input and confirm input, fingerprint input and confirmation and password or password, door lock controlled by the door phone and the phone, so that user convenience, smooth security and intrusion from outside are more stable. To prevent it.

주지된 바와 같이 일반적으로 사용되고 있는 도어록은 크게 기계식도어록과 전자식 도어록으로 구분된다.As is well known, door locks that are generally used are largely divided into mechanical door locks and electronic door locks.

상기한 기계식 도어록은, 도어를 잠그거나 해정하기 위한 빗장과, 상기 빗장을 출몰 동작시키는 핸들을 구비한 개폐부, 그리고 상기 빗장의 출몰동작을 차단하거나 해정하기 위한 키뭉치로 이루어져 상기 키뭉치를 열쇠로 조작하도록 구성되어 있으며, 이는 사용자가 일일이 금속제로 형성된 열쇠를 휴대 및 보관하고 다녀야 하는 불편함이 따름과 동시에 열쇠가 아닌 다른 도구나 공구로도 개방될 염려가 커서 도난의 위험이 따른다.The mechanical door lock comprises a latch for locking or releasing the door, an opening and closing portion having a handle for releasing the latch, and a key bundle for blocking or releasing the latching operation of the latch. It is configured to be operated, which is inconvenient for the user to carry and store a key made of metal one by one, and at the same time, there is a risk of theft due to the possibility of opening with other tools or tools other than the key.

전자식 도어록은 다수의 키버튼으로 구성된 키 입력부와, 상기 키입력부의 입력신호를 판단하여 제어신호를 출력하는 제어부와, 상기 제어부의 제어신호를 받아 동작하는 솔레노이드가 빗장을 동작시킴으로서 도어를 잠그거나 해정하는 도어개폐수단으로 구성되었으며, 최근에는 전자기술이 크게 발전함에 따라 전자식 도어록은 한국 특허공보 제95-6184호와 제93-16628호, 제95-13218호와 제93-783호에 기술된 바와 같이 상기와 같이 도어를 잠그거나 해정하는 기능과 집안내부의 사람을 호출하는 기능은 물론, 음성메시지를 지원하는 기능이나 방문자의 용건을 녹음하는 기능까지 발전하였다.The electronic door lock includes a key input unit consisting of a plurality of key buttons, a control unit for determining an input signal of the key input unit and outputting a control signal, and a solenoid operated by receiving the control signal of the control unit locks or unlocks the door by operating a latch. The electronic door lock has been described in Korean Patent Publication Nos. 95-6184, 93-16628, 95-13218 and 93-783. As described above, the function of locking or releasing the door and calling a person in the house guide unit, as well as a function of supporting a voice message or recording a visitor's request have been developed.

또한, 근자에는 이들보다 진일보한 건으로서 비디오폰을 구성하는 도어폰에 마이콤을 채용하여 음성서비스를 지원하고, 리모콘이나 비밀번호를 이용한 문의 개폐기능을 기본으로 갖추며, 비디오폰과 결합되어 작동되면서 지문을 이용하여 방문자의 신분을 확인해 문을 개폐할 수 있는 지문인식용 전자식 도어록도 특허등록 제 265416호로 등록되어 있다.In addition, in recent years, it is a step further than these to support the voice service by employing a microcomputer in the door phone constituting the video phone, and to basically open and close the door using a remote control or password, combined with the video phone to operate the fingerprint Fingerprint recognition electronic door lock that can open and close the door by checking the visitor's identity is also registered in Patent No. 265416.

그러나 상기한 특허등록 제265416호는 지문인식으로 방문자의 신분을 확인하거나 비밀번호로서 도어 개폐가 이루어지게 한점, 그리고 리모콘을 이용하여 원격제어가 이루어지게 한 점에 있어서는 매우 편리한 이점이 따르지만, 통상 홈오토메이션용 비디오폰(특히 실내용폰)은 거실 등의 벽면에 설치되어 여러사람이 공용으로 사용할 수 있도록 되어 있어 방문자 확인시 반드시 서있는 자세에서 사용할 수 밖에 없고, 또, 정해진 위치에서만 사용할 수 밖에 없어 다소 불편하며, 더불어 고가의 기기가 단순히 방문자의 확인 및 도어 개폐작용밖에는 할 수 없어 매우 비합리적인 면이 따랐다.However, the above-mentioned patent registration No. 265416 has a very convenient advantage in that the identification of the visitor by fingerprint recognition or the door opening and closing with a password, and the remote control using a remote control, are usually convenient. Video phones (especially indoor phones) are installed on the walls of the living room and can be shared by many people, so they can only be used in a standing position when checking visitors. In addition, the expensive equipment can only be confirmed by the visitor and the door opening and closing action was very irrational.

따라서 본 발명은 상기한 종래의 제반 문제점을 감안하여 발명한 것으로, 특히 다수의 번호 입력키와 각종 기능키를 가진 통상의 전화기에 방문자를 확인할 수 있는 모니터와 도어개폐에 따른 스위치 등을 비롯한 다양한 기능키 등을 장착구성하고, 현관의 문옆 벽면위치에 설치되고 음성의 입출력과 영상의 입출력, 그리고 방문신호를 울릴수 있는 차임벨과 도어를 개폐시키는 제어부로 구성된 통상의 도어폰에는 지문입력 및 인식부와 비밀번호나 암호등을 입력시킬 수 있는 비밀번호입력부 등으로 된 정보입력부를 구성하며, 상기 전화기와 도어폰에 의해 도어록이 제어되게 함으로써 사용이 매우 편리하면서 보안 및 안전성이 극대화되게 하고, 더불어 주방이든 안방이든 전화기에서 방문자를 쉽게 확인함과 동시에 문의 개폐를 원활하게 시킬 수 있게 하려는데 그 목적이 있는 것이다.Therefore, the present invention has been invented in view of the above-mentioned conventional problems, and in particular, various functions including a monitor and a switch according to the door opening and closing, which can identify a visitor to a conventional telephone having a plurality of number input keys and various function keys. A common door phone, which is equipped with a key, is installed at a wall surface of the front door of the front door, and is composed of a chime bell for opening / closing a voice signal, a video signal, a visit signal, and a control unit for opening and closing the door. It consists of an information input section including a password input section for inputting a password or a password, and the door lock is controlled by the phone and the door phone, so that the use is very convenient and the security and safety are maximized. Easily check visitors on your phone and open and close the door smoothly. I would haryeoneunde that purpose.

도 1은 본 발명의 일 실시예를 나타낸 것으로 모니터를 가진 전화기와 도어폰, 그리고 도어개폐작동부를 나타낸 것임.Figure 1 shows an embodiment of the present invention as a phone having a monitor and door phone, and the door opening and closing operation.

도 2는 본 발명의 전자식 도어록의 구성을 나타낸 블럭도.Figure 2 is a block diagram showing the configuration of the electronic door lock of the present invention.

상기와 같은 목적을 달성하기 위한 본 발명은 크게 전화기(1), 도어폰(2), 그리고 도어록(3)으로 구성된다.The present invention for achieving the above object is largely composed of a telephone (1), a door phone (2), and a door lock (3).

전화기(1)는 송수화기(11)와 스피커(12), 다수의 번호키와 기능키로 이루어진 입력부(13)로 이루어진 통상의 구성에 모니터(14)와 도어개폐용키(15)로 이루어진다.The telephone 1 comprises a monitor 14 and a door opening / closing key 15 in a conventional configuration comprising a handset 11, a speaker 12, and an input section 13 consisting of a plurality of number keys and function keys.

도어폰(2)은 비밀번호나 암호등을 입력시킬 수 있게 숫자와 문자 기호등으로 된 키로 이루어진 비밀번호입력부(21)와 사용자의 지문을 입력 및 확인할 수 있게 형성한 지문인식부(22), 그리고 외부 방문자를 실내에서 용이하게 확인할 수 있도록 하기 위해 설치된 카메라(23)로 구성된 통상의 구조에 외부인이나 지문의 영상을 전기적인 신호로 변환시키는 카메라 및 광학부(24)와 입력되는 지문을 분석하여 등록된 지문과 비교하는 지문영상데이터처리부(25)와 상기 비밀번호입력부(21)로부터 입력된 비밀번호나 상기 지문영상데이터처리부(25)에서 인식된 지문데이터를 판단하여 각종제어신호를 출력하는 제어부(26)와, 다수자리의 비밀번호와 다수인의 지문정보를 저장하는 메모리(27)와, 상기 제어부(26)에서 출력하는 문개폐와 관련된 제어신호를 상기 도어록에 송신하는 무선신호송신부(28)로 구성한다.Door phone (2) is a password input unit 21 consisting of a key consisting of numbers and letter symbols, such as a password or password to enter, and a fingerprint recognition unit 22 formed to input and confirm the user's fingerprint, and the outside In order to easily identify the visitor indoors, the camera and the optical unit 24 and the fingerprint inputted with the camera and the optical unit 24 for converting an image of an outsider or a fingerprint into an electric signal are registered in a conventional structure composed of a camera 23 installed therein. A control unit 26 for judging a password inputted from the fingerprint image processing unit 25 and the password input unit 21 to be compared with a fingerprint or fingerprint data recognized by the fingerprint image data processing unit 25 and outputting various control signals; And a memory 27 for storing a plurality of digit passwords and a plurality of fingerprint information, and a control signal associated with a door opening and closing output from the control unit 26. The radio signal transmitter 28 transmits to the lock.

도어록(3)은 상기 무선신호송신부(28)에서 송신하는 제어신호를 수신하여 문의 개폐를 작동시키는 무선신호수신부(31)와, 상기 무선신호수신부(31)에서 수신된 제어신호를 따라 도어를 개폐시키는 도어개폐작동부(32)를 포함하여 구성한다.The door lock 3 receives a control signal transmitted from the wireless signal transmitter 28 to open and close a door according to the control signal received from the wireless signal receiver 31 and the wireless signal receiver 31. It comprises a door opening and closing operation portion 32 to.

미설명부호 4는 도어폰에 설치된 여러 색상(파랑, 빨강, 노랑)의 LED로서 지문 또는 비밀번호 입력 및 확인, 설정시 육안으로 입력된 신호의 일치여부를 확인할 수 있게 한 것이다.Reference numeral 4 is a multi-color (blue, red, yellow) LED installed in the door phone that allows you to check whether the fingerprint or password input and confirmation, whether the input signal is matched with the naked eye.

이와 같이 구성된 본 발명은 전화기(1)자체에 모니터(14)가 설치되어 있어 외부의 방문자가 도어폰(2)에 설치된 차임벨을 누르면 실내에서는 전화기에 설치된모니터(14)에 의해 방문자의 확인이 용이하게 이루어지게 되는 것이며, 확인 후 도어개폐용 키(15)를 누르면, 이 신호가 도어록의 무선신호 수신부(31)에 전달되어 도어개폐작동부(32)를 작동시키게 됨으로서 도어록이 해정되는 것이다.According to the present invention configured as described above, the monitor 1 is installed on the phone 1 itself, and when the outside visitor presses the chime installed on the door phone 2, the visitor is easily confirmed by the monitor 14 installed on the phone indoors. When the door opening and closing key 15 is pressed after confirmation, the signal is transmitted to the wireless signal receiving unit 31 of the door lock to operate the door opening and closing operation unit 32, thereby unlocking the door lock.

한편, 사용자의 지문 및 비밀번호 등이 입력 저장된 상태에서 잠긴 도어를 열고자 할 때는 비밀번호 또는 지문을 이용하여 도어개방을 하면 되는데, 먼저 지문을 이용하여 도어록을 해정시키려 할 때는 지문인식부(22)에 지문을 입력시킨 손가락을 넣으면, 지문영상데이터 처리부(25)에서 지문을 분석하고 이를 메모리에 저장된 지문과 비교하여 일치여부를 확인하게 된다. 이때 메모리(27)에 저장된 지문과 사용자의 손가락지문이 지문영상데이터처리부(25)에서 대비한뒤, 동일하다는 판단이 이루어졌을 경우에는 파란색상의 LED가 점등됨과 동시에 이 신호를 도어록의 무선신호수신부(31)에 전달하여 도어개폐작동부(32)를 작동시켜 도어를 해정하게 되며, 저장된 지문과 다른 경우에는 빨간색상의 LED가 점등되어 저장된 지문과 다르다는 것을 표시하게 된다.On the other hand, when the user wants to open the locked door in the state where the user's fingerprint and password, etc. are stored, the door may be opened by using a password or fingerprint. When the door lock is unlocked by using a fingerprint, the fingerprint recognition unit 22 may be opened. When the finger inputs the fingerprint, the fingerprint image data processing unit 25 analyzes the fingerprint and compares it with the fingerprint stored in the memory to check whether there is a match. At this time, if the fingerprint stored in the memory 27 and the user's finger fingerprint is prepared in the fingerprint image data processing unit 25, and judged to be the same, the blue LED is on and this signal is transmitted to the wireless signal receiver of the door lock ( The door is unlocked by operating the door opening / closing operation part 32 by transmitting to 31), and when the fingerprint is different from the stored fingerprint, the red LED is turned on to indicate that it is different from the stored fingerprint.

비밀번호를 입력시킬 경우도 마찬가지로 메모리(27)에 저장되어 있는 비밀번호와 동일할 경우에 파란색상의 LED가 점등됨과 동시에 도어록이 해정되게 되고, 다른 경우에는 빨간색상의 LED가 점등되어 비밀번호가 틀리다는 것을 확인할 수 있게 한다.Similarly, when the password is inputted, if the password stored in the memory 27 is the same as the LED on the blue light, the door lock is unlocked, and in other cases, the LED on the red light turns on to confirm that the password is incorrect. To be.

다시 말하면, 본 발명에서는 지문과 비밀번호, 또는 암호를 사용하여 도어록을 해정할 수 있게 하였는데, 입력시킨 비밀번호나 암호, 또는 지문이 메모리에 저장된 비밀번호나 암호, 또는 지문과 다를 경우 빨간색상으로 점등되는 LED에 의해틀리다는 것을 표시하게 되고, 일치할 경우는 파란색상의 LED가 점등되어 육안으로 확인이 용이하게 이루어지게 하였다는 것이다.In other words, in the present invention, the door lock can be unlocked using a fingerprint, a password, or a password, which is lit in red when the input password or password, or the fingerprint is different from the password, password, or fingerprint stored in the memory. It is indicated that the difference by, and if it matches, the blue LED is turned on to make it easy to see with the naked eye.

특히 본 고안에 있어서, 가장 큰 특징은 전화기와 지문인식 및 비밀번호 입력이 가능한 도어록의 결합에 특징이 있으며, 상기 전화기의 경우 거실은 물론 안방이나 주방등 방마다 설치사용할 수 있어 종래 단순히 방문자 확인 및 도어록 만을 해정할 수 있게 한 비디오폰과는 달리 일반전화기능도 갖추고 있어 다목적 사용이 이루어지면서 전화통화중에도 방문자 확인이 이루어져서 매우 편리하게 사용할 수 있게 되는 것이다.In particular, in the present invention, the biggest feature is the combination of the phone and the door lock that can be fingerprint recognition and password input, the phone can be installed in every room, such as the living room as well as the living room, simply check the visitor and the door lock conventionally Unlike the video phone, which allows you to unlock the phone, it is equipped with a general phone function, which makes it very versatile and makes it very convenient to check visitors during the phone call.

이상 설명한 바와 같이 본 발명은 도어폰의 구성을 개선하여 비밀번호 또는 암호의 입력이 용이하게 이루어지고, 또, 지문인식시스템이 설치되어 도어록을 해정할 때 비밀번호나 암호, 또는 지문을 선택적으로 이용할 수 있게 됨은 물론 실내에서 전화기를 통하여 방문자확인이 이루어지는데다가 통상 전화기의 설치위치는 사용자가 사용하기 편한 쪽에 설치 사용하는 것이기에 벽면뿐만 아니라 테이블에도 설치 사용할 수 있어 사용이 매우 편리하게 이루어지게 되고, 더불어 방문자 확인 및 통화도 가능하여 다목적사용이 이루어지는 등의 효과가 따르는 매우 유용한 발명인 것이다.As described above, the present invention improves the configuration of the door phone so that a password or a password can be easily input, and a fingerprint recognition system is installed so that a password, a password, or a fingerprint can be selectively used when unlocking the door lock. Of course, the visitor is confirmed through the telephone in the room, and the installation location of the telephone is generally used to be installed on the user-friendly side, so it can be installed on the table as well as the wall, and it is very convenient to use. It is a very useful invention with the effect of making a call, so that multi-purpose use is made.

Claims (1)

전자식 도어록을 구성함에 있어서,In constructing the electronic door lock, 전화기(1), 도어폰(2), 그리고 도어록(3)으로 구성하되,Consisting of a telephone (1), a door phone (2), and a door lock (3), 송수화기(11)와 스피커(12), 다수의 번호키와 기능키로 이루어진 입력부(13)로 이루어진 통상의 구성에 모니터(14)와 도어개폐용키(15)를 더 설치하여 이루어진 전화기(1)와;A telephone 1 formed by further installing a monitor 14 and a door opening / closing key 15 in a conventional configuration including a handset 11, a speaker 12, and an input unit 13 comprising a plurality of number keys and function keys; 비밀번호나 암호 등을 입력시킬 수 있게 숫자와 문자 기호 등으로 된 키로 이루어진 비밀번호입력부(21)와, 사용자의 지문을 입력 및 확인할 수 있게 형성한 지문인식부(22), 그리고 외부 방문자를 실내에서 용이하게 확인할 수 있도록 하기 위해 설치된 카메라(23)로 구성된 통상의 도어폰 구조에 외부인이나 지문의 영상을 전기적인 신호로 변환시키는 카메라 및 광학부(24)와, 입력되는 지문을 분석하여 등록된 지문과 비교하는 지문영상데이터처리부(25)와, 상기 비밀번호입력부(21)로 부터 입력된 비밀번호나 상기 지문영상데이터처리부(25)에서 인식된 지문데이터를 판단하여 각종제어신호를 출력하는 제어부(26)와, 다수자리의 비밀번호와 다수인의 지문정보를 저장하는 메모리(27)와, 상기 제어부(26)에서 출력하는 문개폐와 관련된 제어신호를 상기 도어록에 송신하는 무선신호송신부(28)를 더 구성하여서 된 도어폰(2)과;A password input unit 21 consisting of a key consisting of numbers and letters and symbols for inputting a password or password, a fingerprint recognition unit 22 for inputting and confirming a user's fingerprint, and an external visitor easily in the room The camera and optical unit 24 converts an image of an outsider or a fingerprint into an electric signal in a conventional door phone structure composed of a camera 23 installed so as to be able to check it, and a fingerprint registered by analyzing an input fingerprint. A fingerprint 26 to compare, a controller 26 for determining a password input from the password input unit 21 or fingerprint data recognized by the fingerprint image data processor 25 and outputting various control signals; And a memory 27 for storing a plurality of digit passwords and a plurality of fingerprint information, and a control signal associated with a door opening and closing output from the control unit 26. A door phone 2 further comprising a radio signal transmitter 28 for transmitting to a lock; 상기 무선신호송신부(28)에서 송신하는 제어신호를 수신하여 문의 개폐를 작동시키는 무선신호수신부(31)와, 상기 무선신호수신부(31)에서 수신된 제어신호를따라 도어를 개폐시키는 도어개폐작동부(32)로 구성된 도어록(3)으로 구성됨을 특징으로 한 전자식 도어록.A wireless signal receiver 31 for receiving a control signal transmitted from the wireless signal transmitter 28 to operate opening and closing of a door, and a door opening / closing operation part for opening and closing a door according to the control signal received from the wireless signal receiver 31. Electronic door lock, characterized in that consisting of a door lock (3) consisting of (32).
KR1020020053339A 2002-09-02 2002-09-02 an electronic door lock KR20020081168A (en)

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