KR20140056647A

KR20140056647A - Door unlocking system using door camera

Info

Publication number: KR20140056647A
Application number: KR1020120121321A
Authority: KR
Inventors: 현재호
Original assignee: (주) 코콤
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2014-05-12

Abstract

The present invention relates to a door unlocking system using a door camera and, more particularly, to a system for unlocking a locked door, which is capable of obtaining a password through the door camera in VLC communication with a portable mobile terminal of a user and confirming the password through a wall pad to unlock the locked door. A door unlocking system according to an embodiment of the present invention includes a mobile terminal which emits visible light corresponding to a coded set password; a wall pad for storing the set password; a door camera which is connected through a voice line to the wall pad to receive the visible light from the mobile terminal, decodes the visible light, determines whether the decoded data is identical to that stored in the wall pad, and outputs a driving signal when the decoded data is identical to that stored in the wall pad; and a door lock for unlocking the door according to the driving signal.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door unlocking system using a door camera,

The present invention relates to a door unlocking system using a door camera. More specifically, the door camera unlocks a door lock by recognizing a password through visible light communication with a mobile terminal carried by a user, Lt; / RTI >

2. Description of the Related Art Generally, a digital door lock is installed in a home or office such that a door can be unlocked by a digital signal response so that an outside visitor can be identified and a door can be selectively opened and closed.

The digital door lock is unlocked by inputting a password, fingerprint recognition or contact or proximity of an electronic key such as an RFID card or a bus card.

1 is a view showing a general digital door lock.

Referring to FIG. 1, a general digital door lock 10 is provided with a keypad 11 for inputting numbers on the front thereof, and is opened or closed when a person presses a password.

However, when the door lock is opened and closed by inputting the password, the password is easily exposed to the other person, and the fingerprint or the like remains on the keypad 11, resulting in poor security.

In addition, when the digital door lock 10 is opened and closed by using an electronic key such as the RFID card 20, the bus card 21, etc., there is an inconvenience that the user must carry an electronic key separately.

Korean Patent Laid-Open Publication No. 2003-0077824 (name: door lock system) discloses a technique for remotely controlling the opening and closing operation of a door lock part using a remote controller. Korean Patent Application Publication No. 2003-0060864 A door lock and a visitor's terminal are connected to each other using an external relay device to allow a visitor to be identified even when a resident is absent and a visitor can be confirmed after confirming the identity of the visitor.

However, according to the conventional door lock system, there is a problem that a separate user must be always present for opening and closing the door lock. In the case of the door lock interphone system using the relay, not only the relay is installed separately but also the relay repeats the call to the emergency contact The door lock is opened and closed after information is transmitted and received.

In addition, the conventional digital door lock is configured separately from a wall pad or a home network system in the room, and is independently driven and is configured to release the lock by its own independent judgment.

2, the conventional digital door lock includes a control unit 1 that controls overall control of the digital door lock 10, a power supply unit 2 that supplies power to the digital door lock, A memory 3 for storing information, a voice processing unit 4 for voice-informing the open / closed / abnormal operation state of the door, a display unit 5 for displaying various status information on the battery status display and the like, A motor drive unit 6 for outputting a drive signal for controlling the forward / reverse rotation state of the motor 8, a door for detecting the open / locked state of the door 8, A button input unit 11 for inputting a key button related to an open / lock detection unit 7, a password input using a number key or a guard room call, and an RF card (or IC card) And a touch key input unit 9, which carries information of the key as an input.

In the conventional digital door lock 10 configured as described above, when the user inputs a password by using the button input unit 11 or places an electronic key such as an RF card in the contact key input unit 9, The controller 8 outputs a control signal to the motor driving unit 6 to rotate the motor 8 in the direction corresponding to the door opening.

A dead bolt (not shown) is inserted into the door according to the direction in which the motor 10 is rotated, so that the door is opened.

As described above, in the conventional digital door lock 10, the code (password and ID) for authenticating opening and closing is in the digital door lock itself and the digital door lock is integrally mounted on the inside and outside of the door. When an electric shock or high temperature (fire) is applied, the digital door lock becomes useless and the door can be easily opened.

Korean Patent Publication No. 2003-0077824 (October 04, 2003) Korean Patent Publication No. 2003-0060864 (July 16, 2003)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-described problems, and it is an object of the present invention to provide a door camera which can recognize a password by visible light communication with a mobile terminal carried by a user, And an object of the present invention is to provide a door unlocking system using a door camera that can open / close a door lock using VLC communication using a portable terminal without using a separate electronic key.

Another object of the present invention is to provide a door unlocking system using a door camera which is robust against external light noise during VLC communication and can prevent a password from being hacked.

Another object of the present invention is to provide a door camera which is connected to a wall pad and which has a button input part composed of ten keys and which registers a code for authenticating the opening and closing of a door lock on a wall pad in the house, The present invention also provides a door lock system using a door camera.

According to an aspect of the present invention, there is provided a door unlocking system including a mobile terminal for emitting visible light encoded with a set password;

A month pad for storing the set password;

A door camera connected to the wall pad and an audio line to receive and decode visible light of the mobile terminal, determine whether the decoded data is stored in the wall pad, and output a driving signal when the decoded data is stored; And

A door lock for opening the door by the drive signal;

.

In addition, the mobile terminal is a smart phone.

In addition, the VLC communication program is stored in the smartphone,

The VLC communication program includes a password input means for inputting the password from a user,

VLC data coding means for coding the password to generate VLC (VLC: Visual Lignt Communication) data, and

And VLC data transmitting means for turning on / off the display of the smart phone to output the VLC data as visible light.

The door camera may further include a visible light receiving unit for receiving the visible light and receiving the VLC data, and a VLC data decoding unit for decoding the VLC data.

In addition, the door camera operates in a VLC data setting mode for initially receiving and storing VLC data or in an opening / closing mode for opening the opening / closing device when VLC data is received after setting VLC data,

The VLC data storing unit receives and stores VLC data from the VLC data decoding unit in the VLC data setting mode.

The door camera is provided with a control unit for judging whether the VLC data decoded by the VLC data decoding unit in the open / close mode is stored in the VLC data storage unit of the wall pad and outputting a driving signal to the door lock when the VLC data is stored .

Further, the door camera includes a button input unit for inputting a door lock password,

In the VLC data setting mode, the wall pad includes a door lock password storing unit for matching the door lock password and the VLC data of the VLC data storing unit to each other,

When the door lock password is input in the open / close mode, the controller determines whether the inputted door lock password is stored in the door lock password storing unit, and outputs a driving signal to the door lock when stored.

Further, the door lock password and the password of the mobile terminal are different from each other.

In addition, the VLC data storage unit stores a plurality of different VLC data.

An identification code for identifying VLC data is inserted into a header of the VLC data and a cyclic redundancy check (CRC) is inserted into a tail of the VLC data.

In addition, the VLC data may be scramble or encrypted data.

In addition, the smartphone may be connected to a server having a storage for storing VLC communication programs and communication means capable of transmitting data through a communication network, requesting download of the VLC communication program, and downloading the VLC communication program through the communication network And stores it.

The door lock includes a driving unit for moving the dead bolt which substantially serves to open and close the door by a driving signal, and an opening / closing device for releasing the locking of the door by driving the driving unit.

The door camera may further include a button input unit for setting a security mode so that the wall pad can operate in the outgoing mode and the emergency mode, and a button input unit for setting the security mode.

In addition, the moon pad sets and stores a password, and notifies the mobiles registered in the moon pad through a communication network.

Also, a random number generator is installed in the month pad, and the password is changed and stored at a predetermined time through a random number, and the mobile terminal registered in the month pad is notified via a communication network.

Also, when a plurality of door lock passwords are stored in one of the wall pads, door locks are divided into several groups, passwords are changed and stored differently for each group, and the mobile terminals registered in the group are notified via a communication network do.

In addition, the moon pad sets a security level for each door lock, divides the security level into several groups, modifies and stores the password by applying a random number according to the class, and notifies the mobile terminal registered in the group for each group divided according to the class .

Further, the lens used in the door camera is a fish eye lens.

According to the means for solving the above-mentioned problem, the door camera can recognize the password by the visible light communication with the mobile terminal carried by the user and confirm the password through the wall pad, thereby unlocking the door lock, It is possible to open and close the door lock through the VLC communication using the mobile terminal that does not use the mobile terminal.

In addition, it is resistant to external light noise during VLC communication, and password hacking can be prevented.

Further, the door camera connected to the wall pad is provided with a button input unit composed of ten keys. By registering a code for authenticating the opening and closing of the door lock on the wall pad of the house, the door lock is strong against external electric shock or high heat It is not released.

In addition, various functions can be set / canceled externally through the button input unit provided in the door camera, and it is convenient to register / change the password on the wall pad remotely using the mobile terminal.

1 is a view showing a general digital door lock.
2 is a configuration diagram of a conventional digital door lock.
3 is a view for explaining a door unlocking system according to an embodiment of the present invention.
4 is a schematic block diagram of a door unlocking system according to an embodiment of the present invention.
5 is an internal configuration diagram of the door camera and the mobile terminal shown in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

It is to be noted that the same components of the drawings are denoted by the same reference numerals and symbols as possible even if they are shown in different drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

FIG. 3 is a view for explaining a door unlocking system according to an embodiment of the present invention, and FIG. 4 is a schematic configuration diagram of a door unlocking system according to an embodiment of the present invention.

The door unlocking system 100 includes a mobile terminal 110, a door camera 120, a door lock 130, and a wall pad 140. As shown in FIG.

The mobile terminal 110 is a terminal equipped with a display 111 capable of emitting visible light and may be a terminal that the user always carries, such as a smart phone.

However, it is possible to substitute any mobile terminal capable of emitting VLC data with visible light by a VLC communication program, which will be described below, such as a tablet PC in addition to a smart phone.

Also, the mobile terminal 110 generates encoded visible light for the set password, and the VLC communication program is stored therein.

In addition, the VLC communication program may be stored in a storage medium, such as an SD card, readable by the mobile terminal 110 and read by the mobile terminal 110.

The VLC communication program may be stored in the internal memory of the mobile terminal 110 when the mobile terminal 110 is manufactured.

The mobile terminal 110 may download and store the VLC communication program from a server system having a storage capable of storing the VLC communication program and a communication means that can be connected to the mobile terminal 110 through a communication network.

The server system may be a server system capable of transmitting the VLC communication program according to a download request of the mobile terminal 110, such as 'Android Market', 'T Store' and 'App Store'.

The door camera 120 is installed on one side of the doorway to confirm the identity of the visitor, and includes a camera 124 for photographing a visitor, a microphone 128 for recognizing the voice of the visitor, A button input unit 125 for setting / canceling a mode, a password inputting unit 125 for inputting a password, and a visible light receiving unit for receiving visible light of the mobile terminal 110, A receiving unit 121 is provided.

The door camera 120 receives the visible light from the mobile terminal 110 and decrypts the received visible light. When the decrypted data is stored in the wall pad 140, 130, respectively.

The door lock 130 does not include a button input unit or a control unit as shown in FIG. 2, but includes only a driving unit that moves the dead bolt that substantially serves to open and close the door, and an opening and closing unit that is opened and closed by the driving unit.

The wall pad 140, which is connected to the door camera 120 through a voice communication line, is a touch screen type home network terminal installed on a wall of the house. The wall pad 140 is a home network terminal for lighting, curtain control, visitor confirmation, It provides the function of home network such as crime prevention and gas lock.

In particular, the moon pad 140 stores a code for authenticating opening and closing of the door lock 130.

5 is an internal configuration diagram of the door camera and the mobile terminal shown in FIG.

As shown, the mobile terminal 110 includes a VLC communication program 112 and a display 111.

The VLC communication program 112 functions as a password inputting means 112a, a VLC data coding means 112b and a VLC data transmitting means 112c so that VLC data is transmitted to the mobile terminal 110, To be outputted as visible light through the display 111 of FIG.

The password input means 112a receives a password from a user and displays a ten-key on the display 111 to receive a password from the user.

However, the ten-key may be replaced by a character input key such as a Qwerty key-pad.

After the password is initially set, the password input means 112a may display only the hot key such as 'Open' without displaying the ten-key, and when the hot key is input, it is recognized that the password is input can do.

The mobile terminal 110 accesses the wall pad 140 via the Internet and inputs a password through the password input means 112a in the setting mode and transmits the password to the wall pad 140 so that the password of the door lock can be remotely controlled from the outside It can also be changed.

The VLC data coding unit 112b generates the VLC data by coding the password.

Here, the VLC data is data for carrying information by transmitting information in visible light and transmitting information by turning on light as digital information '1' and off as digital information '0'.

In addition, the VLC data coding unit 112b inserts an identification code in the header of the VLC data for identification of the light for VLC data transmission and external light noise, and performs error checking of the VLC data Insert a CRC (Cyclic Redundancy Check) into the tail.

The error detection code may use an error detection code such as a parity bit or a Hamming code in addition to the cyclic code.

The VLC data coding unit 112b scrambles or encrypts the VLC data so that the VLC data can not be recognized by other devices other than the door lock 130, .

The VLC data transmitting means 112c turns on / off the display 111 of the mobile terminal 110 to output the VLC data as visible light.

In addition, the VLC data transmitting unit 112c can reduce the power consumption of the mobile terminal 110 by turning on / off only a predetermined area of the display 111. [

The door camera 120 is attached to a door, receives visible light from the mobile terminal 110, decrypts the received visible light, and opens the door when the decrypted data is stored in the wall pad 140 .

In addition, the door camera 120 may include a VLC data setting mode for initially receiving and storing VLC data from the mobile terminal 110, a door opening / closing device 130 for opening / closing the door lock 130 when VLC data is input after the VLC data is set 132, and a button (not shown) for operating the modes, such as a security mode including an outgoing mode and an emergency mode, a gas lock mode, and the like.

The door camera 120 includes a visible light receiving unit 121, a VLC data decoding unit 122, a camera module 124, a control unit 123, a button input unit 125, and a communication unit 126.

The visible light receiving unit 121 receives VLC data by receiving visible light from the mobile terminal 110.

For example, the visible light receiving unit 121 may receive the VLC data, including a photodiode (not shown) for receiving visible light, and an A / D converter for converting the signal of the photodiode into a digital signal.

The VLC data decoding unit 122 decodes the VLC data and recognizes the password.

The control unit 123 determines whether the VLC data decoded by the VLC data decoding unit 122 is stored in the VLC data storage unit 141 of the wall pad 140. If the VLC data is stored in the VLC data storage unit 141, The opening / closing device 132 is opened to the driving part 131 of the main body 130.

That is, according to the present invention, it is possible to open and close the door lock 130 by interlocking the mobile terminal 110, the door camera 120, and the wall pad 140 without using a separate remote controller, a key input or an electronic key It is.

For this, the VLC data storage 141 and the password storage 142 are provided in the wall pad 140.

The VLC data storage unit 141 receives and stores VLC data decoded by the VLC data decoding unit 122 of the door camera 120 in the VLC data setting mode.

Also, a plurality of different VLC data may be stored in the VLC data storage unit 141, and a plurality of users may set a password using their own mobile terminal 110 to open / close the door lock 130 have.

The password storage unit 142 receives the door lock password input from the button input unit 125 of the door camera 120 and matches the door lock password with the specific VLC data of the VLC data storage unit 141 And stores it.

Also, the door lock password may be the same as or different from the password set in the smartphone.

That is, even though the VLC data is the same, the smartphone password and the door camera password may be different from each other, so that the security can be enhanced and the password can be conveniently set according to the user's need.

The button input unit 125 of the door camera 120 may be configured to set and store each function mode of the wall pad 140 by using the door camera 120 to receive the door lock password.

For example, the wall pad 140 has an outside mode and an emergency mode for smoothly performing a security mode, and a veranda that can pass outside when the user goes out, and a motion sensor and a magnetic sensor installed at the main entrance are activated When it is detected, the outgoing mode can be set by using the button input unit 125 to perform a function of notifying the outside (guard room and pre-registered wired / wireless phone).

The communication unit 126 is connected to a pre-installed line for voice communication with a visitor, and can perform data communication using the simple voice lines of the door pad 140 and the door camera 120.

The camera module 124 photographs a visitor to identify a visitor from inside the camera module 124. The camera module 124 includes a lens, an image sensor that converts an image transmitted from the lens into an electrical signal, and a circuit that is electrically connected to the image sensor, And a substrate.

In the present invention, the lens uses a fish eye lens, which is an ultra-wide angle lens having an angle of view of more than 180 degrees. The camera module 124 receives an image through a fisheye lens, , Where the circuit board corrects the distorted image due to the fisheye lens.

The door lock 130 does not include a storage unit for storing a code for authenticating the opening and closing of a button input unit or a door lock, a control unit for controlling the opening and closing device, and the like. The door lock 130 includes a driving unit 131 and an opening and closing unit 132.

When the driving signal is inputted from the door camera 120 in the opening and closing mode, the driving unit 131 moves the dead bolt which substantially opens and closes the door, and the opening and closing device 132 is opened thereby to open the door.

In the VLC data setting mode, the wall pad 140 is connected to the door camera 120 and receives the VLC data decoded by the VLC data decoding unit and the door lock password inputted through the button input unit 125, and stores the same.

In addition, the moon pad 140 may access the moon pad 140 on the web via the Internet and store the door lock password when the mood pad is changed through the mobile terminal 110.

The communication unit 143 of the wall pad 140 includes a CO line interface unit connected to a user terminal such as a subscriber's wired telephone or a home wired telephone, a VoIP communication unit connected to the Internet through an ADSL / VDSL modem, USB communication, RS-232C communication, short-range wireless communication, and gateway communication.

In the above description, the password of the door lock 130 is input using the door camera 120 or the mobile terminal 110, and the door lock 130 is stored in the door pad 140. However, A random number generator (program or hardware) may be installed on the pad to change the password of the door lock on a monthly, weekly, or weekly basis at a predetermined time, and store the changed password in the wall pad. May also be notified via < RTI ID = 0.0 >

In this case, when a plurality of door lock passwords are stored in one month pad by a method in which a plurality of door cameras are connected to one month pad, door locks are divided into several groups and the passwords are changed differently for each group , And the moon pad may notify a mobile terminal belonging to the group of the changed password for each group.

Also, the security level may be set for each door lock, divided into several groups, and the random number may be applied differently according to the class to change the password, and notify the mobile terminals belonging to the group by groups divided according to the class.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

100: door unlocking system 110: mobile terminal
111: Display 112: VLC communication program
120: door camera 121: visible light receiver
122: VLC data decoding unit 126: Button input unit
130: Door lock 132: Switchgear
140: Wall pad 141: VLC data storage unit
142: Password storage unit

Claims

A mobile terminal that emits a coded visible light for a set password;
A month pad for storing the set password;
A door camera connected to the wall pad and an audio line to receive and decode visible light of the mobile terminal, determine whether the decoded data is stored in the wall pad, and output a driving signal when the decoded data is stored; And
A door lock for opening the door by the drive signal;
And a door lock mechanism for locking the door.

The method according to claim 1,
Wherein the mobile terminal is a smart phone.

3. The method of claim 2,
The VLC communication program is stored in the smartphone,
The VLC communication program includes a password input means for inputting the password from a user,
VLC data coding means for coding the password to generate VLC (VLC: Visual Lignt Communication) data, and
And a VLC data transmitting means for turning on / off the display of the smartphone to output the VLC data as visible light.

The method of claim 3,
The door camera includes a visible light receiver for receiving the visible light and receiving VLC data,
And a VLC data decoding unit for decoding the VLC data.

5. The method of claim 4,
The door camera operates in a VLC data setting mode for initially receiving and storing VLC data or in an opening and closing mode for opening the opening / closing device when VLC data is received after setting VLC data,
The VLC data storing unit receives and stores VLC data from the VLC data decoding unit in the VLC data setting mode.
The door camera is provided with a control unit for judging whether the VLC data decoded by the VLC data decoding unit in the open / close mode is stored in the VLC data storage unit of the wall pad and outputting a driving signal to the door lock when the VLC data is stored Door unlocking system using door camera which features.

6. The method of claim 5,
The door camera includes a button input unit for inputting a door lock password,
In the VLC data setting mode, the wall pad includes a door lock password storing unit for matching the door lock password and the VLC data of the VLC data storing unit to each other,
Wherein when the door lock password is input in the open / close mode, the controller determines whether the inputted door lock password is stored in the door lock password storing unit and outputs a driving signal to the door lock when stored. A door unlocking system using a door.

The method according to claim 6,
Wherein the door lock password is different from the password of the mobile terminal.

6. The method of claim 5,
The VLC data storage unit stores a plurality of different VLC data
Door unlocking system using door camera which features.

The method of claim 3,
Wherein an identification code for identifying VLC data is inserted in a header of the VLC data and a cyclic redundancy check (CRC) is inserted in a tail of the VLC data. system.

10. The method of claim 9,
The VLC data is scrambled or enciphered.
Wherein the door lock device is a door lock device.

The method of claim 3,
The smartphone is connected to a server having a storage for storing VLC communication programs and a communication means for transmitting data through a communication network,
And downloading and storing the VLC communication program through the communication network by requesting download of the VLC communication program.

The method according to claim 1,
Wherein the door lock includes a driving unit for moving the dead bolt to substantially open and close the door by a driving signal, and an opening / closing device for releasing the door lock by driving the driving unit. system.

The method according to claim 1,
Wherein the door camera includes a button input unit for setting a mode so that the wall pad can operate in a mode such as a security mode or a gas lock mode in an outgoing mode and an emergency mode, Used door unlocking system.

The method according to claim 1,
Wherein the password is set and stored in the wall pad, and the password is notified to the mobile terminal registered in the wall pad through a communication network.

15. The method of claim 14,
Wherein a random number generator is installed in the month pad to change and store the password at a predetermined time through a random number and notify the mobile terminal registered in the month pad through a communication network.

16. The method of claim 15,
When a plurality of door lock passwords are stored in one of the wall pads, door locks are divided into a plurality of groups, passwords are changed and stored differently for each group, and the door locks are notified to the mobile terminals registered in the group through a communication network Door unlocking system using camera.

17. The method of claim 16,
The above-mentioned moon pad is configured to change the security level for each door lock and divide it into several groups and change the password by applying random numbers differently according to the moods, and notify the mobiles registered in the group for each group divided according to the mood Door lock system using a door camera.

The method according to claim 1,
Wherein the lens used in the door camera is a fish eye lens.