WO2016006831A1

WO2016006831A1 - Door-lock using iris recognition and system thereof, mobile communication terminal and network gateway used therein, and user authentication method

Info

Publication number: WO2016006831A1
Application number: PCT/KR2015/005849
Authority: WO
Inventors: 박근
Original assignee: 주식회사 케이티앤씨
Priority date: 2014-07-09
Filing date: 2015-06-10
Publication date: 2016-01-14
Also published as: CN204833296U

Abstract

Disclosed are a door-lock and a user authentication method using iris recognition. The door-lock comprises: a wake-up module for recognizing user access or driving the door-lock according to a user's button input; and an iris recognition module for, if the door-lock is driven by the wake-up module, comparing an iris pattern inputted to the door-lock with a pre-stored iris pattern and authenticating, according to the result of the comparison, a user who accessed the door-lock.

Description

Door lock and its system using iris recognition, mobile communication terminal, network gateway and user authentication method

The present invention relates to a door lock and a user authentication method, and more particularly, to a door lock using iris recognition, a system thereof, a mobile communication terminal, a network gateway, and a user authentication method used therein.

Conventional security systems using encryption keys and face recognition are utilized as security systems such as various security alarms, safes, doors, personal computers (PCs), and automatic teller machine (ATM) machines. However, there is a problem of security threats due to encryption key leakage. For example, when a ten key pad for encryption key input is operated, there is a problem of a security threat due to an input trace remaining on the ten key pad after exposure and an exposure during the ten key pad input.

In the security system using the face recognition, the authentication key itself is input differently to the biometric reader due to the use environment and the possibility of change of the face recognition information over time. In addition, there is a high possibility of error in the face recognition information when wearing an object covering the face such as glasses, masks, sunglasses and muffler.

Therefore, there is a need for a technology for a door lock and a user authentication method that provides a high level of security against the risk of encryption key leakage and the possibility of biometric information change.

In addition, away from the security system confined to the digital door lock itself, the owner of the house from the house checks the face of the visitor, especially if he is located far away from the house, and directly checks the face of the visitor. In some cases, the convenience of opening or closing the front door is required, and a security system technology using face recognition for such a case is required.

The present invention has been made in the technical background as described above, the eye position is sensed in the face image of the user approaching the door lock, and the iris image is obtained through the iris camera. Then, by comparing the iris pattern, the user authentication to access the door lock.

In addition, by obtaining the iris pattern information of the user through the iris camera to which the tilt mechanism (Tilt Mechanism) is applied, the recognition performance due to the possibility of changing the biometric information is prevented.

Optionally, by providing a communication module capable of communicating with the mobile device and receiving biometric information from the mobile device and registering it with the security system, user convenience of the security system can be more easily improved.

In addition, by checking the face of the visitor using the user's mobile communication terminal, in particular, when the user is located far from home, the user's convenience to directly check the face of the visitor to open or close the front door accordingly Improve.

According to an aspect of the present invention, a door lock is driven by a wake up module or a wake up module that recognizes a user's approach or drives the door lock according to a user's button input. The iris recognition module includes a iris recognition module for comparing the iris pattern input to the door lock with a pre-stored iris pattern and for authenticating a user accessing the door lock according to the comparison result.

When the door lock is driven, the iris recognition module acquires a face image of the user approaching the door lock, an eye position sensing unit for sensing an eye position in the face image of the user acquired by the face photographing unit, and an eye position sensing. According to the result, a servo control unit for adjusting the inclination of the iris photographing unit and generating an iris photographing control signal, an iris photographing unit photographing the iris of the user approaching the door lock based on the iris photographing control signal An iris pattern comparison unit for comparing the iris pattern with a pre-stored iris pattern, and authenticates the user accessing the door lock according to the comparison result.

The iris imaging unit controls the tilt mechanism by the iris imaging signal obtained from the servo control unit, and tilts according to the sensed eye position.

The wake-up module includes at least one access recognition sensor for sensing the presence of an object approaching the door lock and an input unit for obtaining a button input from a user approaching the door lock, and drives the door lock according to the sensing result and the button input signal. It is to let.

According to another aspect of the present invention, a security system receives biometric information from a mobile device and a mobile device for obtaining biometric information including an iris of a user, stores the received biometric information, and stores the stored biometric information and the biometric information input from the user. In comparison, a door lock for authenticating a user based on the comparison result is included.

The raw vegetable information is unique identification information including iris pattern information, fingerprint information, retina information, and facial information.

According to another aspect of the present invention, there is provided a method for authenticating a user, the method comprising: sensing an access of a user, acquiring an image of the accessed user's face when the door lock is driven according to a sensing result; Sensing the eye position in the image, acquiring an iris image of the user with the iris camera based on the sensed eye position, and comparing the iris pattern extracted from the obtained iris image with a previously stored iris pattern, Accordingly, authenticating the user.

The obtaining of the iris image of the user may be performed by controlling the inclination or operation of the iris camera through servo control, thereby obtaining the iris image of the user.

Acquiring an iris image may include acquiring an iris image with an iris camera, and extracting an iris pattern from the obtained iris image.

The pre-stored iris pattern extracts the iris pattern from the iris image received from the mobile device having the communication function, and makes a database of the extracted iris pattern, or photographs the iris from the door lock, and extracts the iris pattern from the photographed iris image. This is a database of extracted iris patterns.

Another door lock system according to the present invention for achieving the above object,

The digital door lock acquires the visitor's face image and provides it to the user's mobile communication terminal, and the user's mobile communication terminal displays the visitor's face image and controls the door opening operation of the digital door lock according to the door open control signal input from the user. It features.

A specific structure may include a digital door lock, a network gateway for registering terminal information of a user mobile communication terminal to transmit a face image of a visitor who has accessed the digital door lock, and networking the terminal door with the registered user mobile communication terminal and the digital door lock; And a location server configured to collect and secure location information of the network gateway and the user mobile communication terminal so as to be connected to each other by collecting and securing location information of the network gateway and the user mobile communication terminal. It is done.

According to the present invention, a high security level is provided through a user authentication process through iris recognition.

In addition, by obtaining the iris pattern information of the user, it is possible to prevent a decrease in recognition performance due to the possibility of changing the biometric information.

Optionally, by receiving biometric information from the mobile device and registering it with the security system, registration is made easier to improve convenience.

After checking the visitor's face using the user's mobile communication terminal, in particular, if the user is located far from home, the user (for example, the owner of the house) is notified that the visitor has been visited, and the face of the visitor is checked directly. This improves the user's convenience of opening or closing the front door of their home.

1 is a diagram illustrating a security system according to an embodiment of the present invention.

2a to 2b is a view showing the configuration of the door lock to which the iris recognition module according to an embodiment of the present invention is applied.

3 is a view showing in detail the configuration of the door lock according to an embodiment of the present invention.

4 is a diagram showing an example of the configuration of the mechanism of the iris recognition module according to an embodiment of the present invention.

5A to 5B are diagrams illustrating embodiments of inclination adjustment of a face photographing camera and an iris camera according to an embodiment of the present invention.

6 is a signal flow diagram of a security system according to an embodiment of the present invention.

7 is a flowchart illustrating a security system operation process for authenticating a user according to another embodiment of the present invention.

8 is a flowchart illustrating a user authentication process in a door lock according to an embodiment of the present invention in detail.

9A to 9C are views illustrating an embodiment of photographing a face and an iris of a user according to a key of a user approaching a door lock according to an embodiment of the present invention.

10 is a view showing the configuration of a door lock system according to the present invention.

11 is a view for explaining the operation of the door lock system according to the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to those skilled in the art to easily understand the scope of the invention, which is defined by the description of the claims. Meanwhile, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” or “comprising” means the presence of one or more other components, steps, operations and / or elements other than the components, steps, operations and / or elements mentioned or Does not exclude additional

The term 'module', as used herein, should be interpreted to include software, hardware or a combination thereof, depending on the context in which the term is used. For example, the software can be machine language, firmware, embedded code, and application software. As another example, the hardware may be a circuit, a processor, a computer, an integrated circuit, an integrated circuit core, a sensor, a micro-electro-mechanical system (MEMS), a passive device, or a combination thereof.

Prior to the description, the meaning of terms used in the present specification will be briefly described. It is to be noted that the terminology is provided for the purpose of understanding the specification and is not used to limit the technical spirit of the present invention unless it is explicitly described as limiting the present invention.

-서보 제어(servo control)Servo control

Servo control is a kind of feedback control, and is a control method in which a control amount follows a target value.

In the present invention, the eye position is sensed in the face image of the user approaching the door lock, and the iris pattern is obtained by adjusting the tilt and motion of the iris camera to which the tilt mechanism is applied through servo control. Thereafter, the obtained iris pattern is compared with previously stored iris patterns, and the user who accesses the door lock is authenticated according to the comparison result.

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

Referring to FIG. 1, a security system according to an embodiment of the present invention includes a mobile device 100, a door lock 200, and an external device 300.

The mobile device 100 obtains biometric information including an iris image of the user. For example, the mobile device 100 acquires biometric information including iris pattern information by photographing an eye of a user through a provided camera or the like. The obtained biometric information is transmitted to the door lock 200 through data processing. Herein, the mobile device 110 corresponds to a device that is carried and used by each user. However, the mobile device 110 is not limited to a portable device. For example, it may be a mobile phone, a mobile computer, or the like equipped with a communication function, a photographing function, and a biometric information sensing function.

The door lock 200 receives biometric information from the mobile device 100 and stores the received biometric information. Thereafter, the stored biometric information is compared with the biometric information input from the user, and the user is authenticated based on the comparison result. Door lock 200 according to an embodiment for this, a wake-up module 210, a micro controller (Micro Controller) 230, iris recognition module 250, encryption key input module 270 and communication module 290 It includes.

The wakeup module 210 recognizes a user's approach through a sensor or generates a wake up signal according to a user's button input to drive the door lock 200. The generated wakeup signal is input to the iris recognition module 250 via the microcontroller 230.

When the door lock 200 is driven, the iris recognition module 250 compares the iris pattern input to the door lock 200 with previously stored iris patterns, and authenticates the user approaching the door lock 200 according to the comparison result.

The present invention is for authenticating a user accessing a door lock through iris recognition, and user authentication through encryption key input described later applies to user authentication separately from iris authentication. Specifically, in the preferred embodiment of the present invention, the user is authenticated by comparing the iris pattern. The authentication process through the encryption key input does not go through the iris authentication process, or the authentication process through the encryption key input goes through the user authentication process.

The encryption key input module 290 receives an encryption key from the user to authenticate the user accessing the door lock. Thereafter, the input encryption key is compared with the preset encryption key, and the user is authenticated according to the comparison result.

The communication module 290 is a communication function based on short-range wireless communication such as Bluetooth communication, Infrared Data Association (IrDA) communication, Radio Frequency Identification (RFID) communication, Zigbee, Near Field Communication (NFC), and the like. Support. In one embodiment, by using the communication module 290, the user's biometric information is received in real time from the mobile device 100, or the door lock 200 transmits the user authentication status information, etc. to the mobile device 100, The authentication status information of the door lock 200 may be provided in real time.

The external device 300 is a device in which biometric information of users who should be registered in the door lock 200 is stored and transmits data stored in the external device 300 to the door lock 200. The external device 300 stores various data including biometric information, and may include one or more nonvolatile memories and volatile memories. In the present invention, the ROM (Read Only Memory), flash memory (flash memory), RAM (Random Access Memory), internal hard disk (HDD, Hard Disk), external hard disk, external storage medium (for example, USB), etc. It may be composed of at least one of.

2A to 2B, in the embodiment, the door lock to which the iris recognition module is applied includes an optical window 210, an input keypad 230, and an iris recognition module (not shown). In the embodiment described as a door lock, but is not limited to this, of course.

2B, the iris recognition module 250 of the door lock 200 according to the embodiment includes a face photographing camera 251, an iris camera 253, and a processor board 255.

The face photographing camera 251 photographs the face of the user approaching the door lock. When the eye position is sensed in the captured face image, the iris camera 253 acquires an iris image by capturing the iris of the user based on the sensed eye position information. At this time, a tilt mechanism is applied to the iris camera 253, and the tilt and operation of the iris camera 253 are controlled by servo control. Thereafter, the processor board 255 extracts an iris pattern from an iris image and compares the iris pattern with a previously stored iris pattern to perform initial security authentication of the user according to the comparison result.

Hereinafter, an operation process of the door lock (eg, door lock) will be described in more detail with reference to FIG. 3.

Referring to FIG. 3, the door lock according to an embodiment includes a wake-up module 210, an iris recognition module 250, and the like. The iris recognition module 250 includes a processor 251, a face photographing unit 253, An eye position sensing unit 255, a servo control unit 257, an iris imaging unit 258, and an iris pattern comparison unit 259 are included.

The wakeup module 210 senses the presence or absence of an object approaching the door lock 200 and inputs the sensing information a to the microcontroller 230. For example, the wakeup module 210 recognizes an object close to the door lock with the proximity recognition sensor 213, or obtains an input signal from the user through the input unit 215, and wakes up to drive the door lock. Generate a signal. The generated wake-up signal a is input to the microcontroller 230.

The microcontroller 230 acquires the correct input from the user based on the wake-up signal a obtained from the wake-up module 210, or determines that a person has approached the door lock, and outputs a recording start signal b to the iris recognition module. Transfer to processor 251.

The processor 251 of the iris recognition module 250 inputs the face photographing signal c to the face photographing unit 253 according to the input photographing start signal b. Then, the face photographing unit 253 photographs the face of the user close to the door lock 200. For example, the face photographing unit 253 may be a device such as a camera, a CMOS, and a DMOS capable of photographing a face of a user.

After capturing the face of the user, the face image data d is transferred to the eye position sensing unit 255. The eye position sensing unit 255 senses the eye position through a general image processing process including edge detection from the received face image data d. For example, the eye position sensing unit 255 senses coordinates of the left and right eyes in the face area, and transmits the coordinate information e1 and e2 of the sensed two eyes to the iris imaging unit 258 and the processor 251. do. The processor 251 generates an iris photographing signal when the position of the eye is identified through the received coordinate information e1 of the received eye, and transmits the generated iris photographing control signal f to the servo controller 257. To pass. Here, the iris photographing control signal f includes a tilt control signal of the iris camera and an iris camera operation signal according to the eye position.

The servo controller 257 generates a photographing signal g based on the received iris photographing control signal f and inputs it to the iris photographing unit 258.

The iris photographing unit 258 photographs the iris of the user based on previously acquired eye coordinate information e2 according to the input photographing signal g. When the iris image of the user is obtained, the biometric information of the user, such as an iris pattern, is extracted from the iris image. Thereafter, the iris photographing unit 258 transmits the extracted unique biometric information h to the iris comparing unit 259.

The iris comparison unit 259 compares the unique biometric information h including the received iris pattern with the stored unique biometric information. The comparison result information i is input to the processor 251.

The processor 251 determines whether the user is authenticated according to the input comparison result information (i). If the input biometric information and the stored biometric information match, the processor 251 completes authentication of the user.

In another embodiment of the present invention, it is possible to authenticate a user accessing the door lock only by inputting a password. The present invention performs user authentication through iris recognition and iris pattern comparison. User authentication through password input described below is performed independently and independently from the authentication process through iris recognition.

The microcontroller 230 transmits the input authentication performance signal k to the cryptographic input unit 271 of the cryptographic key input module 270.

The encryption input unit 271 receives a predetermined encryption key such as a ten key or a pattern from the user according to the input authentication performance signal k. The input encryption key information n is transmitted to the determination unit 273.

The determination unit 273 authenticates the user according to the comparison result by comparing the encryption key input from the user with a predetermined encryption key. For example, when the input encryption key and the stored encryption key match, the door open signal and the authentication completion signal m are transmitted to the microcontroller 230 to perform the door lock opening. On the other hand, if the input encryption key and the stored encryption key is different, the re-entry signal is transmitted to the encryption input unit 271, so that the user inputs the encryption key again.

4A to 4C are front and side views of a door lock device including an iris recognition module according to an embodiment.

4A to 4C, the face photographing unit 253 corresponds to the fixed camera 410, and the iris photographing unit 258 corresponds to the iris camera 430 to which a tilt mechanism is applied. The servo controller 257 corresponds to the servo motor 440.

In addition, the approach recognition sensor 113 of the wake-up module 110 corresponds to at least one sensor 420 illustrated in FIGS. 4A to 4C.

Specifically, when the approach recognition sensor 420 recognizes the user's approach with the door lock, the face photographing camera 410 photographs the face of the approaching user. Thereafter, the eye position is sensed in the face area of the captured face image.

After the eye position sensing, the inclination of the iris camera 430 to which the tilt mechanism is applied is controlled by the axis 441 connected to the servo motor 440, and the angle of the iris camera 430 is adjusted according to the inclination. Shoot the iris.

5A to 5B, the face photographing camera 410 operated by user approach sensing captures a face of a user within an angle of θ1. Subsequently, when the eye position is sensed in the photographed face image, the tilt of the iris camera is adjusted by the servo control to capture the iris of the user located within the photographing angle θ2 of the iris camera.

In the iris camera according to an embodiment, the inclination angle of the iris camera is adjusted according to the eye position of the user to be photographed. For example, as illustrated in FIG. 5A, when the user is a tall user, since the position of the user's eyes is relatively high, the servo controller 257 for controlling the tilt and motion of the iris camera may adjust the tilt angle of the iris camera. Adjust upward to θ3. On the other hand, since the position of the eye is low in the case of a short user, the servo controller 257 adjusts the tilt angle of the iris camera downward to θ4.

In operation S510, a process of photographing biometric information of a user including an iris is performed in the mobile device 100. Here, the mobile device 100 is a tablet PC (Tablet PC), laptop (Laptop), personal computer (PC: Personal Computer), smart phone (Smart Phone), personal digital assistant (PDA) and mobile communication The terminal may be one of a mobile communication terminal and the like. That is, the mobile device 100 may include a device having a memory for storing a specific application for accessing the door lock 200 via the wired / wireless communication network 140, a microprocessor for executing a program and controlling the same, and the like. it means. Although the mobile device 100 is generally a personal PC, any terminal may be used as long as the management device and the server-client communication are possible, and a broad concept including all communication computing devices such as a notebook computer, a mobile communication terminal, and a PDA may be used. to be.

In operation S520, a process of transmitting data photographed by the mobile device 100 to the door lock 200 is performed.

In operation S530, a process of storing photographing data is performed in the door lock 200.

In operation S540, when the door lock 200 detects an object approach to the door lock or acquires a user's button input, a process of driving the door lock is performed.

In operation S550, when the door lock 200 is driven, a process of acquiring an iris image from the door lock 200 is performed.

In operation S560, a process of comparing the iris image obtained from the door lock 200 with the stored iris image is performed. If the acquired iris image and the stored iris image coincide with each other, in step S570, the door lock 200 determines that the initial authentication is completed and then opens the door. On the other hand, if the acquired iris image is different from the stored iris image, the process returns to step S550 to acquire the iris image again.

Thereafter, in step S580, a process of transmitting authentication status information from the door lock 200 to the mobile device 100 is performed according to a user's selection.

7 is a diagram illustrating a security system operation process for additional authentication of a user according to another embodiment of the present invention.

Since the description of step S660 from step S610 corresponds to step S510 to step S560 of FIG. 6, overlapping description is omitted. In operation S670, a process of receiving an encryption key input from the user in the door lock 200 is performed.

In operation S680, a process of comparing the encryption key input from the door lock 200 with a predetermined encryption key is performed. If the input encryption key and the preset encryption key match, in step S690, the door lock 200 determines that the additional authentication is completed, and then opens the door. On the other hand, if the input encryption key and the predetermined encryption key is different, the process returns to step S670, the process of obtaining the encryption key input again.

Thereafter, in step S700, a process of transmitting authentication status information from the door lock 200 to the mobile device 100 is performed according to a user's selection.

In the description of the embodiment, the additional authentication of the user is described as being performed through the encryption key, but the additional authentication may be various authentication forms that can improve security after iris recognition, such as pattern recognition and voice recognition.

In operation S710, a process of storing iris photographing data received from the mobile device 100 in the door lock 200 or storing iris photographing data registered in the door lock 200 is performed.

In operation S720, the wakeup module 110 detects the user's approach or drives the door lock by the user's input.

After the driving, a process of photographing the face of the user approached by the face photographing unit 253 is performed in step S730.

In operation S740, a process of sensing an eye position in a face area of a face image photographed by the eye position sensor 255 is performed.

In operation S750, the eye position information sensed by the iris photographing unit 258 is received, and a process of photographing the iris with an iris camera whose tilt is adjusted according to the eye position is performed.

In operation S760, the iris pattern is extracted from the iris image photographed by the iris comparator 259, and a process of comparing the iris pattern with previously stored iris patterns is performed.

In step S770, if the pre-stored iris pattern and the extracted iris pattern match, the processor 251 of the iris recognition module 250 proceeds to the additional authentication process of receiving the encryption key, the pre-stored iris pattern If the extracted iris pattern is different, the process returns to step S730.

In operation S780, since the pre-stored iris pattern matches the extracted iris pattern, a process of receiving an encryption key from the user is performed by the encryption input module 270.

In operation S790, a process of comparing the preset encryption key with the input encryption key is performed by the determination unit 273 of the encryption input module 270.

If the predetermined encryption key and the input encryption key match, it is determined that the additional authentication is completed, and in step S800, a process of opening the door in the microcontroller 220 of the door lock 200 is performed.

In describing an embodiment of the present invention, the initial user authentication is described as iris recognition, and the additional user authentication is described as encryption key authentication. However, at least one of initial authentication and additional authentication may be selected and applied to the security system. Can be. In addition, unique identification information such as color, fingerprint, and voice of the iris, as well as the pattern of the iris, may be used in the authentication process.

Referring to FIG. 9A, when a relatively tall user approaches the door lock, when the approach of the tall user is sensed, a face is photographed by a face camera, an eye position is sensed, and a sensed eye position is detected. Therefore, the tilt of the iris camera is adjusted automatically. After adjusting the inclination of the iris camera, an iris image of an approaching user is acquired to perform an authentication process.

9B illustrates an embodiment of acquiring an iris image of a user without tilting the iris camera.

9C illustrates an embodiment of acquiring an iris image when a user who has a short key approaches a door lock.

Referring to FIG. 9C, when a short user, such as a child, approaches a door lock, when a short user senses an approach, a face is photographed by a face camera, and an eye position is sensed. The tilt of the iris camera is automatically adjusted according to the eye position. After adjusting the inclination of the iris camera, an iris image of an approaching user is acquired to perform an authentication process.

In the present invention, an initial authentication is performed by sensing an eye position in a face image of a user approaching a door lock, obtaining an iris image, and comparing iris patterns. After initial authentication, an additional authentication process is performed through encryption key input, providing a high level of security.

In addition, by obtaining the iris image information of the user through the iris camera that the tilt is automatically adjusted, it prevents the recognition performance degradation due to the possibility of changing the biometric information.

In addition, by providing a communication module capable of communicating with the mobile device in the door lock, it receives the biometric information from the mobile device and registers it in the security system, thereby facilitating user registration to improve convenience.

The door lock mentioned in the present invention can be applied to a device requiring a security system such as an ATM door lock, an alarm device, a safe, a door, a personal computer (PC) and a bank automatic teller machine (ATM) device.

Although the configuration of the present invention has been described in detail with reference to the preferred embodiments and the accompanying drawings, it is only an example and various modifications are possible within the scope without departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

10 is a diagram showing the configuration of a mobile communication terminal face identification digital door lock system according to the present invention.

As shown in Figure 10, the digital door lock system according to the present invention registers the terminal information of the digital door lock 100, the mobile communication terminal 300 to transmit the face image of the visitor approaching the digital door lock 100, The mobile communication terminal 300 to which the terminal information is registered, the network gateway 200 networking the digital door lock 100, the mobile communication terminal 300 having terminal information registered to the network gateway 200, and the It includes a location server 400 (Location Server) to collect and secure the location information of the network gateway 200 and the mobile communication terminal 300 to be connected to each other.

The digital door lock 100 obtains a face image of a visitor who has accessed the door lock, processes the image (image editing + image compression), transmits the image to the network gateway 200, and the user mobile communication terminal 300 transmitted from the network gateway 200. Door opening is controlled according to the door opening control signal of The structure may include a visit wake-up button 110 for driving the door lock according to a visitor's button input, a proximity recognition sensor for recognizing a visitor's approach, and an iris pattern of a user approaching the door lock. An iris recognition module 120 having a system processor 123 for comparing a iris pattern and authenticating a user accessing the door lock according to the comparison result, and opening and closing of the door based on the user authentication result. It is configured to include a micro-controller 130 to control, and is electrically connected to the system processor 123 of the iris recognition module 120, the face camera lens 121 for acquiring the face image of the visitor approaching the door lock ) And a face image acquisition unit including an image sensing sensor 122 of the face camera lens 121, and the system processor 123 of the iris recognition module 120. The sensor 122 has a function of editing and compressing an image sensed by the sensor 122. In addition, the microcontroller 130 causes the iris recognition module 120 to be driven when the visit wake-up button 110 is input or when the proximity recognition sensor visits the visitor. And transmit the image of the visitor's face compressed by 120 to the network gateway 200 that is networked to the digital door lock 100 and the registered mobile communication terminal 300, and transmits the image from the network gateway 200. The opening and closing of the door is controlled according to the door opening control signal of the mobile communication terminal 300. The apparatus further includes a communication module (RF (Zigbee) module) for transmitting the visited face image compressed by the system processor 123 of the iris recognition module 120 to the network gateway 200. .

The network gateway 200 registers terminal information of the mobile communication terminal 300 to transmit a face image of the visitor who has approached the digital door lock 100, and registers the mobile communication terminal 300 and the digital door lock in which the terminal information is registered. Networking). The network gateway 200 moves the terminal information registered based on the location information of the mobile communication terminal 300 in which the terminal information received from the location server 400 receives the face image of the visitor acquired by the digital door lock 100. It transmits to the communication terminal 300, and transmits the door opening control signal of the digital door lock 100 returned from the mobile communication terminal 300 registered with the terminal information to the digital door lock 100. The structure includes a communication module 201 for transmitting visitor face images from the digital door lock 100 and a main processor 202 for controlling the overall connection operation of the network gateway 200. The main processor 202 ) Registers the terminal information of the mobile communication terminal 300 to transmit the face image of the visitor approaching the digital door lock 100, and informs the location server 400 of the location information whenever the location information is changed. Secures the connection with the mobile communication terminal 300 registered information, has a wired and wireless Internet access point function, networking the mobile communication terminal 300 and the digital door lock 100 registered with the terminal information Of the mobile communication terminal 300 in which the terminal information received from the location server 400 is received from the location server 400. The terminal information is transmitted to the registered mobile communication terminal 300 based on the location information, and the door opening control signal of the digital door lock 100 returned from the mobile communication terminal 300 in which the terminal information is registered is read. Transfer to the digital door lock 100. The network gateway 200 further includes a door lock door open & close button 203 having a door lock interworking function electrically connected to the communication module 201.

The mobile communication terminal 300 is one having terminal information registered in the network gateway 200 (for example, a smartphone of a home owner equipped with a digital door lock 100 having terminal information registered in the network gateway 200). . The mobile communication terminal 300 opens a face image of the visitor received from the network gateway 200 as a push alarm, and opens the door open control signal of the digital door lock 100 to the location server 400. Return to the network gateway 200 based on the location information of the network gateway 200 received from. The mobile terminal 300 is configured to include a storage unit for storing the visitor face identification app, and a control unit for driving the app stored in the mobile communication terminal 300, the control unit based on the visitor face identification app The image of the visitor's face of the digital door lock 100 transmitted from the network gateway 200 is displayed, and a door open control signal corresponding to input information from a user is transmitted to the network gateway 200. The controller transmits the door open command and the password to the digital door lock via the network gateway 200 when the door open command is input based on the visitor face confirmation app. The door lock checks whether the password matches the registered password and executes the door lock opening command only if the password matches (the registered password only has the data in the door lock, preventing password leakage even in the case of gateway hacking and the like). )

The location server 400 collects and secures location information of the network gateway 200 and the mobile communication terminal 300 so as to be connected to each other. The location information of the collected and secured mobile communication terminal 300 is transmitted to the network gateway 200 to inform, and the location information of the network gateway 200 is transmitted to the mobile communication terminal 300 to inform it so that they are connected to each other. For example, the location information becomes the IP address of the Wi-Fi when the Wi-Fi connection of the mobile communication terminal 300, and the Wi-Fi connection of the mobile communication data network when the Wi-Fi connection of the mobile communication terminal 300 is not connected. This will be your mobile number. In addition, the location server 400 receives the changed location information (for example, an IP address) from the network gateway 200 whenever the location information of the network gateway 200 is changed, and transmits the location information to the mobile communication terminal 300 in which the terminal information is registered. Secure the connection.

11 is a view for explaining the operation of the mobile communication terminal face identification digital door lock system according to the present invention.

As shown in FIG. 11, the digital door lock system according to the present invention first acquires an image of a visitor's face approached by the digital door lock, processes the image, and transmits the image to the network gateway.

That is, the image of the visitor's face approaching the door lock is acquired through the image sensing sensor of the face camera lens and the face camera lens.

Then, the visitor's face image is acquired and compressed.

In other words, by adding a set free space around the face of the visitor approaching the digital door lock from the acquired visitor's face image, the screen is cut and edited, and the edited image is compressed for transmission to the mobile communication terminal.

Then, the face image of the visitor who has accessed the compressed door lock is transmitted to the network gateway.

Then, the network gateway registers the terminal information of the mobile communication terminal to transmit the face image of the visitor who has approached the digital door lock, and networked the mobile communication terminal to which the terminal information is registered and the digital door lock.

Then, the network gateway transmits the visitor's face image obtained by the digital door lock to the mobile communication terminal in which the terminal information is registered based on the location information of the mobile communication terminal in which the terminal information received from the location server is registered.

In addition, the mobile communication terminal causes the image of the visitor's face received from the network gateway to be a push alarm, and the door opening control signal of the digital door lock, that is, the user (for example, the homeowner) is the visitor's face. After checking the image, the door opening control signal is returned to the network gateway based on the location information of the network gateway received from the location server.

For example, the mobile communication terminal encrypts the door open command and the password when the input information from the user (for example, the home owner) is a door open command based on a specific app (visitor face identification app according to the present invention). To the network gateway. The network gateway sends the password and door open command to the digital door lock. The door lock checks whether the password matches the registered password and executes the door lock opening command only if the password matches (the registered password only has the data in the door lock, preventing password leakage even in the case of gateway hacking and the like). )

Then, the network gateway transfers the door open control signal of the digital door lock returned from the mobile communication terminal to the digital door lock through RF (or Zigbee) communication.

The digital door lock controls the door opening in response to the door opening control signal of the mobile communication terminal transmitted from the network gateway, thereby allowing or rejecting the visitor.

Then, the visitor's face image is acquired and compressed.

The present invention is applicable to door locks requiring enhanced security. Furthermore, the present invention can be applied to security systems such as various security alarm devices, safes, doors, personal computer (PC) and automatic teller machine (ATM) machines.

Claims

As door lock

A wake-up module for recognizing a user's approach or driving the door lock according to a user's button input; And

When the door lock is driven by the wake-up module, the iris recognition module for comparing the iris pattern input to the door lock with a pre-stored iris pattern and authenticates the user accessing the door lock according to the comparison result;

Door lock comprising a.
The method of claim 1, wherein the iris recognition module

A face photographing unit which acquires an image of a face of a user approaching the door lock when the door lock is driven;

An eye position sensing unit for sensing an eye position in a face image of a user acquired by the face photographing unit;

A servo controller adjusting the inclination of the iris photographing unit and generating an iris photographing control signal according to the eye position sensing result;

An iris photographing unit configured to photograph an iris of a user approaching the door lock based on the iris photographing control signal; And

An iris pattern comparison unit comparing the photographed iris pattern with a pre-stored iris pattern;

And a door lock to authenticate a user accessing the door lock according to the comparison result.
The method of claim 2, wherein the iris photographing unit

The tilt mechanism is controlled by the iris imaging signal obtained from a servo control unit, and tilts according to the sensed eye position.

In door lock.
The wakeup module of claim 1,

At least one approach recognition sensor that senses the presence of an object approaching the door lock; And

An input unit for obtaining a button input from a user approaching the door lock;

Including a door lock to drive the door lock according to the sensing result and the button input signal.
As a security system,

A mobile device for obtaining biometric information including an iris of a user; And

A door lock configured to receive the biometric information from the mobile device, store the received biometric information, compare the stored biometric information with biometric information input from a user, and authenticate a user based on the comparison result;

Security system comprising a.
The method of claim 5, wherein the biometric information is

Unique identification information including iris pattern information, fingerprint information, retinal information, and facial information

Security system.
As a user authentication method for security,

Sensing an access of a user;

Acquiring a face image of the approaching user when the door lock is driven according to the sensing result;

Sensing an eye position in the acquired face image of the user;

Obtaining an iris image of the user by adjusting an inclination of the iris camera based on the sensed eye position; And

Comparing the iris pattern extracted from the obtained iris image with a previously stored iris pattern and authenticating the user according to a comparison result;

User authentication method comprising a.
The method of claim 7, wherein the obtaining of the iris image of the user

Obtaining the iris image of the user by controlling the tilt or motion of the iris camera through servo control

User authentication method.
The method of claim 8, wherein the obtaining of the iris image comprises:

Acquiring an iris image with an iris camera; And

Extracting an iris pattern from the obtained iris image;

User authentication method comprising a.
The method of claim 6, wherein the previously stored iris pattern is

Extracting an iris pattern from an iris image received from a mobile device having a communication function and making the extracted iris pattern into a database;

The iris is taken from the door lock, the iris pattern is extracted from the captured iris image, and the extracted iris pattern is a database.

User authentication method.
In a digital door lock system,

Digital door locks;

A network gateway for registering terminal information of a mobile communication terminal to transmit a face image of a visitor who has approached the digital door lock, and networking the mobile communication terminal with the registered terminal information to the digital door lock;

A mobile communication terminal having terminal information registered in the network gateway; And

A location server for collecting and securing location information of the network gateway and the mobile communication terminal so as to be connected to each other;

It is configured to include,

The digital door lock acquires an image of a face of an approaching visitor, processes the image, and transmits the image to the network gateway.

The network gateway transmits the face image of the visitor acquired by the digital door lock to the mobile communication terminal based on the location information of the mobile communication terminal received from the location server,

The mobile terminal generates a push alarm image of the visitor's face received from the network gateway, and the network based on the position information of the network gateway receiving the door open control signal of the digital door lock from the location server. Reply to the gateway,

The network gateway transfers a door open control signal of the digital door lock returned from the mobile communication terminal to the digital door lock,

The digital door lock controlling door opening in response to a door opening control signal of the mobile communication terminal transmitted from the network gateway;

Door lock system using iris recognition characterized in that.
The method of claim 11,

The digital door lock,

A visit wake-up button for driving the door lock according to a button input of a visitor;

An iris recognition module including a system processor for comparing an iris pattern of a user approaching the door lock with a pre-stored iris pattern and authenticating a user accessing the door lock according to the comparison result; And

A microcontroller for controlling opening and closing of the door based on the user authentication result;

It is configured to include,

A face image acquisition unit electrically connected to a system processor of the iris recognition module, the face image acquisition unit including a face camera lens for acquiring a face image of a visitor who has approached the door lock, and a sensor for image sensing of the face camera lens;

It is configured to include more

The system processor of the iris recognition module,

A function of editing and compressing an image sensed by the sensor is provided,

The microcontroller,

When the visit wake-up button is input, driving of the iris recognition module is started, and a network gateway for networking the visitor's face image compressed by the iris recognition module to the digital door lock and the registered mobile communication terminal. Control the opening and closing of the door according to the door opening control signal of the mobile communication terminal transmitted from the network gateway,

A communication module for transmitting a face image of an approaching visitor compressed by a system processor of the iris recognition module to the network gateway;

Door lock system using iris recognition, characterized in that further comprises.
The method of claim 11,

The digital door lock,

Proximity sensor for recognizing a visitor's approach;

An iris recognition module including a system processor for comparing an iris pattern of a user approaching the door lock with a pre-stored iris pattern and authenticating a user accessing the door lock according to the comparison result; And

A microcontroller for controlling opening and closing of the door based on the user authentication result;

It is configured to include,

A face image acquisition unit electrically connected to a system processor of the iris recognition module, the face image acquisition unit including a face camera lens for acquiring a face image of a visitor who has approached the door lock, and a sensor for image sensing of the face camera lens;

It is configured to include more

The system processor of the iris recognition module,

A function of editing and compressing an image sensed by the sensor is provided,

The microcontroller,

A network gateway for driving the iris recognition module to start the visitor recognition of the proximity recognition sensor and networking the visitor's face image compressed by the iris recognition module to the digital door lock and the registered mobile communication terminal. Control the opening and closing of the door according to the door opening control signal of the mobile communication terminal transmitted from the network gateway,

A communication module for transmitting a face image of an approaching visitor compressed by a system processor of the iris recognition module to the network gateway;

Door lock system using iris recognition, characterized in that further comprises.
The method according to any one of claims 11 to 13,

The network gateway,

A communication module for transmitting visitor face images from the digital door lock; And

A main processor that controls the entire access operation of the network gateway;

It is configured to include,

The main processor registers terminal information of the mobile communication terminal to transmit the face image of the visitor who has approached the digital door lock, and informs the location server of the location information whenever the location information is changed, and thus the terminal information is registered. Secures a connection with the mobile terminal, and has a wired / wireless internet access point function, and networked to the mobile communication terminal registered with the terminal information and the digital door lock to obtain a visitor's face image obtained by the digital door lock from the location server. The terminal information is received from the mobile communication terminal based on the location information of the registered mobile communication terminal to transmit the terminal information to the registered mobile communication terminal, the door control of the digital door lock returned from the mobile communication terminal registered the terminal information Deliver signal to the digital door lock Door lock system using the iris recognition, characterized in that.
The method of claim 14,

The network gateway,

A door lock door open & close button of a door lock interlock function electrically connected to the communication module;

Door lock system using iris recognition, characterized in that further comprises.
The method of claim 11,

The mobile communication terminal,

A storage unit for storing a visitor face identification app; And

A controller for driving an app stored in the mobile communication terminal;

It is configured to include,

The control unit,

Displaying a visitor face image of a digital door lock transmitted from the network gateway based on the visitor face identification app, and transmitting a door open control signal corresponding to input information from a user to the network gateway;

Mobile communication terminal used in the door lock system using the iris recognition.
The method of claim 16,

The control unit,

When the input information from the user is a door open command based on the visitor face confirmation app, the door open command and the user input password are transmitted to the network gateway to be delivered to the door lock, and the door lock has the user input password. Mobile communication terminal used in the door lock system using the iris recognition, characterized in that the door lock opening command is performed only if it matches the registered password and if it matches.
In the door lock,

A visit wake-up button for driving the door lock according to a button input of a visitor;

An iris recognition module including a system processor for comparing an iris pattern of a user approaching the door lock with a pre-stored iris pattern and authenticating a user accessing the door lock according to the comparison result; And

A microcontroller for controlling opening and closing of the door based on the user authentication result;

It is configured to include,

A face image acquisition unit electrically connected to a system processor of the iris recognition module, the face image acquisition unit including a face camera lens for acquiring a face image of a visitor who has approached the door lock, and a sensor for image sensing of the face camera lens;

It is configured to include more

The system processor of the iris recognition module,

A function of editing and compressing an image sensed by the sensor is provided,

The microcontroller,

When the visit wake-up button is input, driving of the iris recognition module is started, and a network gateway for networking the visitor's face image compressed by the iris recognition module to the digital door lock and the registered mobile communication terminal. Control the opening and closing of the door according to the door opening control signal of the mobile communication terminal transmitted from the network gateway,

A communication module for transmitting a face image of an approaching visitor compressed by a system processor of the iris recognition module to the network gateway;

Digital door lock used in the door lock system using iris recognition, characterized in that it further comprises a.
In the door lock,

Proximity sensor for recognizing a visitor's approach;

An iris recognition module including a system processor for comparing an iris pattern of a user approaching the door lock with a pre-stored iris pattern and authenticating a user accessing the door lock according to the comparison result; And

A microcontroller for controlling opening and closing of the door based on the user authentication result;

It is configured to include,

A face image acquisition unit electrically connected to a system processor of the iris recognition module, the face image acquisition unit including a face camera lens for acquiring a face image of a visitor who has approached the door lock, and a sensor for image sensing of the face camera lens;

It is configured to include more

The system processor of the iris recognition module,

A function of editing and compressing an image sensed by the sensor is provided,

The microcontroller,

A network gateway for driving the iris recognition module to start the visitor recognition of the proximity recognition sensor and networking the visitor's face image compressed by the iris recognition module to the digital door lock and the registered mobile communication terminal. Control the opening and closing of the door according to the door opening control signal of the mobile communication terminal transmitted from the network gateway,

A communication module for transmitting a face image of an approaching visitor compressed by a system processor of the iris recognition module to the network gateway;

Digital door lock used in the door lock system using iris recognition, characterized in that it further comprises a.
The method of claim 18 or 19,

The face image acquisition unit,

The digital door lock used in the door lock system using the iris recognition, characterized in that built-in or integral to the iris recognition module.
The method of claim 18 or 19,

The system processor of the iris recognition module,

From the image sensed by the sensor to add a set free space around the face and the face of the visitor approaching the digital door lock, cut out the screen to edit, and compresses the edited image to be transmitted to the communication module Digital door lock used in door lock system using iris recognition.
In the network gateway,

A communication module for transmitting a visitor face image of the digital door lock;

A communication interface with a location server for collecting and securing location information of a mobile communication terminal and a location information of a mobile communication terminal to which the visitor face image of the digital door lock is to be connected to each other; And

A main processor that controls the entire access operation of the network gateway;

It is configured to include,

The main processor registers terminal information of the mobile communication terminal to transmit the face image of the visitor who has approached the digital door lock, and informs the location server of the location information whenever the location information is changed, and thus the terminal information is registered. Secures a connection with the mobile terminal, and has a wired / wireless internet access point function, and networked to the mobile communication terminal registered with the terminal information and the digital door lock to obtain a visitor's face image obtained by the digital door lock from the location server. The terminal information is received from the mobile communication terminal based on the location information of the registered mobile communication terminal to transmit the terminal information to the registered mobile communication terminal, the door control of the digital door lock returned from the mobile communication terminal registered the terminal information Deliver signal to the digital door lock Network gateway used in the door lock system using iris recognition, characterized in that.
The method of claim 22,

A door lock door open & close button of a door lock interlock function electrically connected to the communication module;

The network gateway used in the door lock system using iris recognition, characterized in that further comprises.