KR101692993B1 - Smart doorlock - Google Patents

Abstract

The smart door lock system according to the present invention includes a wireless communication unit for wireless communication with a user terminal, a position recognition unit for recognizing the position of the user terminal, and an authentication unit for performing access authentication for the user terminal The authentication unit includes a smart door lock that performs access authentication of the user terminal based on the authentication code transmitted from the user terminal and the location of the user terminal; A low frequency receiver for receiving a low frequency band wake up signal received from the smart door lock, a signal strength measuring unit for measuring the strength of the wake up signal, and a position notification beacon and authentication code message for wireless communication with the smart door lock, To the smart door lock, wherein the authentication code message includes a user terminal identifier, a strength of a wake-up signal, and an authentication code; And a server for transmitting the authentication code combined with the allowed distance value based on the wireless signal strength, the encrypted authentication value, and the use time information to the terminal and the smart door lock when the authentication code is requested from the terminal.

Description

Smart Door Locks {SMART DOORLOCK}

The present invention relates to a smart door lock, and more particularly, to a smart door lock having an unconfigured autonomous object communication function capable of automatically opening and closing a door without using a user's door lock releasing action using an authentication code and physical distance.

In recent years, door locks have developed as embedded systems, allowing door locks such as keypad input, fingerprint recognition, and RFID to provide authentication services so that users can conveniently open doors without having to have separate authentication tools. However, since the method of using the door lock is the same as the process of unlocking and opening the door using the old key, the user still has inconvenience to perform additional actions for authentication. In recent years, there has been an increasing demand for services that enable users to know information of various home appliances through mobile terminals such as smart phones by using IoT technology. However, since the door lock is driven by a battery, WIFI There is a disadvantage that the remote information service can not be performed because it is not available.

An object of the present invention is to provide a smart door lock which can automatically open and close a door without a user's door lock releasing action and has a non-setting autonomous object communication function capable of preventing door lock hacking.

The problems to be solved by the present invention are not limited to the above-mentioned problems. Other technical subjects not mentioned will be apparent to those skilled in the art from the description below.

A smart door lock according to one aspect of the present invention includes a wireless communication unit for wireless communication with a user terminal; A location recognition unit for recognizing a location of the user terminal; And an authentication unit for performing access authentication of the user terminal, and the authentication unit performs access authentication of the user terminal based on the authentication code transmitted from the user terminal and the location of the user terminal.

Wherein the position recognition unit includes a signal strength recognition unit for recognizing a strength of a low frequency signal transmitted between the user terminal and the smart door lock, and the authentication unit recognizes the access authentication of the user terminal according to the authentication code and the strength of the low- Can be performed.

Wherein the smart door lock includes a distance measuring unit for measuring a distance between the user terminal and the smart door lock using the intensity of a low frequency signal and a high frequency signal transmitted between the user terminal and the smart door lock, The access authentication of the user terminal can be performed when it is within the effective distance from the smart door lock.

The location recognition unit includes a sensing unit for sensing a door open / close action of a user and generating a sensing signal, and the authenticating unit can perform access authentication of the user terminal according to the sensing signal.

The smart door lock may further include a display unit for displaying a message by distinguishing the entrance and exit cases of entrance and exit of the user terminal.

The smart door lock may transmit a message to the user terminal by distinguishing the entrance and exit cases of entrance and exit of the user terminal.

The smart door lock can transmit entrance / exit information and door lock opening / closing information to / from the user terminal during the entrance / exit authentication of the user terminal.

The smart door lock can be transmitted to the administrator terminal when a door lock opening / closing request of the unauthorized user terminal is requested.

The smart door lock can identify the unauthenticated user terminal that has approached within the effective distance, and can send a promotional or notification message to the unauthorized user terminal.

The smart door lock transmits the authentication code to the administrator terminal when the authentication code is requested from the administrator terminal, and the administrator terminal can transmit the authentication code to the authentication terminal held by the user.

The smart door lock may include an LF transmitter for transmitting a wakeup signal of a low frequency band to the user terminal.

The smart door lock may further include an alarm generating unit for generating a warning alarm if the door is not closed within a predetermined time after the door is opened, and may transmit the alarm to the user terminal.

The smart door lock may store character, voice, or image notification information, and may display a character, voice, or image on a display device of the door lock according to a situation.

The smart door lock can set the status of the indoor user in the door lock room.

The authentication unit may perform access authentication based on the authentication code and the location of the user terminal with respect to each of a plurality of user terminals registered in advance. A terminal according to another aspect of the present invention includes a low- A low frequency receiving unit for receiving a wake up signal of the mobile terminal; A signal strength measuring unit for measuring the strength of the wake-up signal; And a wireless communication unit for wirelessly communicating with the smart door lock, and transmitting a location notification beacon and an authentication code message to the smart door lock for requesting access authentication, wherein the authentication code message includes a user terminal identifier, And an authentication code.

The terminal may view the reservation status to reserve access to the smart door lock, and may transmit a request message requesting the authentication code to the server.

A smart door lock system according to another aspect of the present invention includes a wireless communication unit for wireless communication with a user terminal, a location recognition unit for recognizing the location of the user terminal, and an authentication unit for performing access authentication of the user terminal, The authentication unit includes a smart door lock that performs access authentication of the user terminal based on the authentication code transmitted from the user terminal and the location of the user terminal; A low frequency receiver for receiving a low frequency band wake up signal received from the smart door lock, a signal strength measuring unit for measuring the strength of the wake up signal, a position notification beacon and authentication unit for wireless communication with the smart door lock, A wireless communication unit for transmitting a code message to the smart door lock, wherein the authentication code message includes a user terminal identifier, an intensity of the wake-up signal, and an authentication code; And a server for transmitting to the terminal and the smart door lock an authentication code in which the allowed distance value based on the radio signal strength is combined with the encrypted authentication value and the allowed time information when the terminal requests the authentication code.

According to the embodiment of the present invention, the door can be automatically opened and closed without a user's door lock release action, and door lock hacking can be prevented.

The effects of the present invention are not limited to the effects described above. Unless stated, the effects will be apparent to those skilled in the art from the description and the accompanying drawings.

1 is a block diagram of a smart door lock system according to an embodiment of the present invention.
2 is a front view of a smart door lock according to an embodiment of the present invention as viewed from the outside.
FIG. 3 is a view of the smart door lock shown in FIG. 2 in an indoor part.
FIG. 4 is a front view of the smart door lock according to another embodiment of the present invention when viewed from the outside.
FIG. 5 is a view of the smart door lock shown in FIG.
6 is a configuration diagram of a smart door lock according to an embodiment of the present invention.
7 is a configuration diagram of a user terminal constituting a smart door lock system according to an embodiment of the present invention.
8 is a message transmission / reception scenario between a smart door lock and a user terminal according to an embodiment of the present invention.
9 is a message transmission / reception scenario between a smart door lock and a user terminal according to another embodiment of the present invention.
FIG. 10 is a configuration diagram illustrating a smart door lock and an authentication key transfer process of a user terminal according to an embodiment of the present invention.
11 is a conceptual diagram illustrating that a door-lock authentication based on physical access distance is performed using a dual signal strength (RSSI (RF, LF)) between a user terminal and a smart door lock.
12 is an exemplary view of a message structure transferred between a smart door lock and a user terminal.
FIG. 13 is a flowchart of an access service operation of a smart door lock according to an embodiment of the present invention.
FIG. 14 is a conceptual diagram of an interlocking of a smart door lock and an integrated management server according to an embodiment of the present invention.
15 is an exemplary view of a message displayed on a display unit of a smart door lock according to an embodiment of the present invention.

Other advantages and features of the present invention and methods for accomplishing the same will be apparent from the following detailed description of embodiments thereof taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and the present invention is only defined by the scope of the claims. Although not defined, all terms (including technical or scientific terms) used herein have the same meaning as commonly accepted by the generic art in the prior art to which this invention belongs. A general description of known configurations may be omitted so as not to obscure the gist of the present invention. In the drawings of the present invention, the same reference numerals are used as many as possible for the same or corresponding configurations. To facilitate understanding of the present invention, some configurations in the figures may be shown somewhat exaggerated or reduced.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises", "having", or "having" are intended to specify the presence of stated features, integers, steps, operations, components, Steps, operations, elements, parts, or combinations thereof, whether or not explicitly described or implied by the accompanying claims.

Used throughout this specification may refer to a hardware component such as, for example, software, FPGA or ASIC, as a unit for processing at least one function or operation. However, "to" is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors.

As an example, the term '~' includes components such as software components, object-oriented software components, class components and task components, and processes, functions, attributes, procedures, Routines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided by the components and components may be performed separately by a plurality of components and components, or may be integrated with other additional components.

1 is a configuration diagram of a smart door lock system 10 according to an embodiment of the present invention. Referring to FIG. 1, the smart door lock system 10 includes a smart door lock 100, a user terminal 200, and a server 300 provided in a door. The smart door lock (100) has a function of autonomous communication with the user terminal (200).

The smart door lock 100 wirelessly communicates with the user terminal 200, recognizes the location of the user terminal 200, and performs access authentication of the user terminal 200. The smart door lock 100 performs access authentication of the user terminal 200 based on the authentication code transmitted from the user terminal 200 and the location of the user terminal 200.

That is, the smart door lock 100 recognizes the location of the user terminal 200, and only when the user terminal 200 having the authentication code within the vicinity of the smart door lock 100 is located, By opening the door, hacking of the smart door lock 100 using wireless communication can be blocked.

According to the present embodiment, since the door lock authentication process that is performed before the user performs the door opening / closing operation is integrated in the process of opening / closing the door, the user can naturally authenticate the door without opening / Service can be provided.

That is, the smart door lock 100 performs door lock authentication by autonomous object communication between the smart door lock 100 and the user terminal 200 carried by the user, even if the user does not perform any action for authentication, Can be automatically opened and closed.

According to the present embodiment, the smart door lock 100 is connected to the user terminal 200 by checking the physical location of the user through the autonomous object communication between the smart door lock 100 and the user terminal 200 worn or held by the user, (RFID or NFC terminal) by inputting a password or by touching a specific encryption device (RFID or NFC terminal) by performing an automatic authentication by receiving an authentication code encrypted through wireless communication The door can be opened and closed.

The user terminal 200 may be provided as a wearable terminal such as a smart phone, a clock type, a belt type, or various other portable terminals. In one embodiment, the smart door lock 100 and the user terminal 200 perform proximity communication using a three-axis LF signal and a bluetooth signal, thereby providing various services by recognizing each other.

The server 300 may be provided as a fixed terminal for each indoor space in order to recognize and manage the location information of the user terminal 200 in real time. The server 300 can manage the location of the user terminal 200 in real time and can play a role of relaying messages between user terminals.

The server 300 transmits authentication keys and service messages to the user terminal 200 through a relay network (an IP network such as a LAN, a WIFI, a mobile communication network such as 3G, LTE, etc.) can do.

The server 300 transmits an authentication code combining the allowed distance value based on the radio signal strength and the encrypted authentication value and the usage time information to the user terminal 200 and the smart door lock 100 when the authentication code is requested from the user terminal 200 Lt; / RTI >

On the other hand, when the user simultaneously carries the smartphone and the wearable terminal, messages are transmitted from the smartphone to the wearable terminal, so that the same service can be provided in the wearable terminal.

The user terminal 200 can receive the encrypted door lock authentication code from the remote administrator terminal that manages the access right to the indoor space through the Internet or the wide area wireless network 3 to 4G network or the like, A variety of ancillary services can be provided such as remote reservation of the indoor space in which the smart door lock 100 is installed, reading of the reservation status, or automatic record search of the indoor space visitor.

When a user carrying the user terminal 200 accesses the smart door lock 100 and performs a door opening and closing operation, the smart door lock 100 automatically recognizes the door open and closes the self door, When the authentication is completed according to the communication, the door is automatically opened and closed, and the recording is automatically managed.

If there is a message to be sent to a passenger or an exit person according to need, the user can automatically transmit the message to the user terminal 200 separately from the entrance and exit cases. In addition, the smart door lock 100 is provided with various additional services such as opening / closing information of the door lock, a voice message, a welcome message, and the like through the infrastructure of the server 300 that manages the indoor space. LCD display device or the like.

The smart door lock system according to the present embodiment is a smart door lock system according to the embodiment of the present invention, in which a door lock is simply accessed without attempting to perform various user operations (RFID access, key pad input, fingerprint recognition, So that the user can use the door lock authentication service very conveniently. Further, since the user can receive door lock opening / closing information, indoor space access information, and the like from anywhere through the user terminal 200, there is an advantage in terms of crime prevention and the like.

The smart door lock 100 according to the present embodiment can operate in cooperation with a separate server that directly interlocks with the user terminal 200 and realizes the occupancy of the occupant in the room where the door lock is installed as needed.

The smart door lock 100 remotely communicates the state of the door lock, the entrance information and the door opening / closing information to the manager remotely. Accordingly, the manager can check the state of the door lock, the entrance information, and the door opening / closing information at any time and place.

The smart door lock (100) can remotely transmit a door open request message to the administrator terminal when a door lock opening / closing operation of an unauthorized user terminal is requested. At this time, if there is an indoor space management server, an open / close request can be transmitted to the administrator through the indoor space management server. In the absence of the indoor space management server, the open / close request can be transmitted to the administrator with the smartphone of the non-authentication user. The administrator can remotely control the door lock by transmitting a door open message (permission message) or an unallowed message to the smart door lock 100 in response to the door opening request through the administrator terminal.

That is, when an unauthorized user approaching the vicinity of the smart door lock 100 requests emergency authentication for door lock opening / closing using a doorbell or a predetermined wireless communication protocol, And can remotely transmit the authentication code temporarily or permanently, which can be opened or closed temporarily by opening or closing the door lock by remote control.

The smart door lock unit 100 transmits a welcome message transmission, an alarm service, a voice and video (video) message to the user terminals located in the user terminal 200 or the surrounding (indoor) through the location of the user terminal 200, Display services, and the like.

The smart door lock (100) may identify a non-authenticated user who has approached the vicinity, detect the LF and RF signal strength to identify a target terminal at an effective distance, and provide a service for sending a publicity or notification message to the terminal.

The authentication unit of the smart door lock 100 may perform access authentication for each of a plurality of user terminals registered in advance based on the authentication code and the location of the user terminal. For example, when strict authentication is required for the smart door lock 100, authentication is performed for multiple combinations of user terminals (e.g., a combination of a smart phone and a smart clock, a combination of a smart phone and a smart belt, etc.) The door lock can be opened for all the user terminals previously registered as possessed by the user when the access authentication is successful. To this end, the information of the user terminals may be set in the server or the smart door lock in advance for each user.

FIG. 2 is a front view of the smart door lock according to an embodiment of the present invention, and FIG. 3 is a view of the smart door lock shown in FIG. 2 in an indoor part. Figs. 2 and 3 show a smart door lock having a main-key shape in which the door handle and the door lock are integrated.

FIG. 4 is a front view of the smart door lock according to another embodiment of the present invention, and FIG. 5 is a view of the smart door lock shown in FIG. Figs. 4 and 5 show smart door locks in which door locks and door locks are separated.

6 is a configuration diagram of a smart door lock according to an embodiment of the present invention. 2 to 6, the smart door lock 100 may include configurations for providing various services, for example, a display unit, a microphone, and a speaker, unlike an existing door lock that provides general authentication services.

A door lock handle 116, a motion detection sensor 118, a primary key handle 119, a position sensor (not shown), and the like are disposed in the indoor unit of the smart door lock 100. The control unit (E.g., a Q-touch button) for receiving a user input, a power supply battery, and the like are connected to the frame 182, the authentication unit 184, the distance measurement unit 186, the warning generating unit 188, (Not shown).

The door portion of the smart door lock 100 is provided with a Mortise Lock and performs a locking function when the door is opened and closed.

The outdoor unit of the smart door lock 100 includes a door lock handle 112 for providing various services, a motion detection sensor 114, a display unit 120, a microphone 130, a speaker 140, a buzzer 150, A moving body detection sensor 160, a fingerprint recognition sensor 170, and the like may be provided on the frame 110.

When the user touches the door lock handle 112 outdoors, the motion detection sensor 114 provided in the door lock handle 112 senses the movement of the door lock handle 112, and the detection signal is transmitted to the LF transceiver 190 And the wireless communication unit 192, as shown in FIG.

The motion detection sensor 114 may be provided as a contact sensor for sensing that the user touches the door lock handle 112 or an acceleration sensor or a geomagnetic sensor for detecting movement of the door lock handle 112. [

A wireless communication unit 192 (for example, a Bluetooth module), a three-axis LF transceiver 190, and an antenna are provided for the user recognition and authentication process in common for the interior and exterior of the smart door lock 100. The wireless communication unit 192 and the LF transceiver 190 are connected to a door lock handle 116 for opening and closing the door and a motion detection sensor 118 for detecting the movement of the handle.

The position recognition unit 182 may include a signal strength recognition unit for recognizing the intensity of a low frequency (LF) signal transmitted between the user terminal 200 and the smart door lock 100. [

Alternatively, the position recognition unit may include a sensing unit for sensing a door opening / closing action of a user and generating a sensing signal, for example, a motion detection sensor 114 ). ≪ / RTI > In this case, the position recognition unit is present in the outdoor mechanism part.

When the user touches or moves the door lock handle 112 outdoors to open the door, the LF transceiver 190 receives the wake-up signal Wake- up signal to the user terminal 200.

Upon receiving the wake up signal to the user terminal 200, the user terminal 200 wakes up from the sleep state to the active state and automatically performs the operation for door lock authentication.

7 is a configuration diagram of a user terminal 200 constituting a smart door lock system according to an embodiment of the present invention. 7, the user terminal 200 includes a user interface unit 210, a display unit 220, a memory 230, a low frequency receiver 240, a signal strength measurement unit 250, and a wireless communication unit 260 Respectively.

The user interface unit 210 is a means for a user to input various commands such as a touch input unit and the like. The display unit 220 is a means for displaying information such as an LCD panel. The memory 230 is a means for storing programs and various information (authentication codes, etc.) for unlocked door lock authentication.

When the low frequency receiver 240 receives the wake up signal (low frequency signal) transmitted from the smart door lock 100, the user terminal 200 wakes up the unlocked door lock authentication operation according to the wake up signal, (250) measures the signal strength of the received wake-up signal for distance measurement between the smart door lock (100) and the user terminal (200).

For door lock authentication, the wireless communication unit 260 wirelessly transmits a request message including signal strength information, an authentication code, and the like to the smart door lock 100. Thereafter, a communication connection is performed between the wireless communication unit 192 of the smart door lock 100 and the wireless communication unit 260 of the user terminal 200 by communication such as Bluetooth.

The signal strength measuring unit 250 measures the intensity of the wireless signal received in the wireless communication process, and transmits the message to the smart door lock 100 together with the intensity of the wake-up signal.

The wireless communication unit 260 wirelessly communicates with the smart door lock 100 and transmits a location notification beacon and an authentication code message to the smart door lock 100 for requesting access authentication. The authentication code message may include information such as the user terminal identifier, the strength of the wake-up signal, and the authentication code.

On the other hand, the user terminal 200 may view the reservation status to reserve access to the smart door lock 100, and may transmit a request message to the server 300 requesting the authentication code. At this time, if there is an indoor space management server, a message requesting the authentication code can be transmitted to the server 300 through the indoor space management server. If there is no indoor space management server, the authentication code And transmit the requesting message to the server 300.

Referring again to FIG. 6, the authentication unit 184 may perform access authentication of the user terminal according to a detection signal indicating that the user touches or moves the door lock handle 112.

The position recognition unit 182 of the smart door lock 100 recognizes the position of the user terminal 200 or recognizes the distance between the smart door lock 100 and the user terminal 200 by the distance measuring unit 186, The authentication unit 184 can perform authentication.

In one embodiment, the distance measuring unit 186 may measure the distance between the smart door lock 100 and the user terminal 200 using the intensity of the low frequency signal and the intensity of the RF signal.

The authentication unit 184 may perform access authentication of the user terminal 200 using the authentication code provided from the user terminal 200 and the intensity of the low frequency signal and the intensity of the RF signal . For example, the authentication unit 184 may perform access authentication for the user terminal 200 when the user terminal 200 is within the effective distance from the smart door lock 100. [

The display unit 120 may display a message on a display window such as an LCD screen by separating the entrance and exit of the user terminal 200 from the entrance and exit of the user terminal 200. The smart door lock 100 can transmit a message to the user terminal 200 by distinguishing the entrance and exit of the user terminal 200 during entrance and exit authentication of the user terminal 200. [

The smart door lock 100 stores character, voice, or image notification information, and may output characters, voice, or images through the display unit 120 and the speaker 140 according to circumstances.

The smart door lock 100 can transmit entrance and exit information (e.g., entrance information, access time and the like) and door lock opening and closing information to the administrator terminal during entrance and exit authentication of the user terminal 200. [

The alarm generating unit 188 may generate a warning alarm if the door is not closed within a set time after the door is opened according to the access authentication of the user terminal 200. [ The smart door lock 100 may transmit a warning alarm message to the user terminal 200. [

The smart door lock 100 can set the status of the indoor user in the indoor portion of the door lock. For example, the user of the indoor door of the smart door lock 100 can manually set the state of the user of the room through the finger contact button on the surface of the room, such as going out, A message informing the status set by the user may be displayed to other users entering or exiting later.

Meanwhile, the smart door lock 100 may transmit the door lock opening / closing request message to the administrator terminal when the door lock opening / closing request of the unauthorized user terminal is requested. Also, the smart door lock 100 may identify the unauthenticated user terminal approaching within the effective distance, and may transmit the promotional or notification message to the unauthorized user terminal.

The smart door lock 100 transmits an authentication code to the administrator terminal when requesting the authentication code from the administrator terminal, and the administrator terminal can transmit the authentication code to the authentication terminal held by the user.

8 is a message transmission / reception scenario between a smart door lock and a user terminal according to an embodiment of the present invention. Through the process shown in FIG. 8, the user terminal obtains authorization to open and close the door lock after authentication.

First, when the user turns the handle of the smart door lock, the 'Door Lock Sensor Task' recognizes this through the motion detection sensor 114 and starts the user authentication process. When a holder of a user terminal accesses a smart door lock and attempts door opening / closing (handle contact, etc.), it is automatically recognized by a human body detection sensor or a hand operation confirmation sensor, and the smart door lock wakes- .

The wake up user terminal transmits its presence to the door lock in the form of a beacon with the LF, RF signal strength (RSSI) value. To receive this beacon signal, the smart door lock switches to beacon reception mode simultaneously with the mobile terminal wakeup message transmission. The 'DoorLock Control Task' instructs the 'DoorLock RF Task' to start the recognition of nearby users using RF.

The RF task first transmits the wake up signal of the LF band several times, thereby causing the user terminal to wake up. The awakened user terminal transmits a BLE advertisement message, and the smart door lock receives the message and tries to establish a communication connection. If the BLE connection is successful, the user terminal transmits its information (authentication key or individual identification information) to the door lock.

The RF task transmits the information to the 'DoorLock Control Task' to identify whether the user is an authenticated user. In one embodiment, the smart door lock receiving the beacon measures the physical distance of the corresponding mobile terminal using two signal strengths (RF, LF) and determines whether the physical distance is within a valid physical distance, And automatically opens and closes the door when authentication is confirmed. When the authentication result is transmitted to the user terminal through the RF task, the user terminal transmits the message or waits for the connection release according to the result.

According to the present embodiment, an algorithm that can calculate the physical permissible distance obtained by combining the LF (100 to 200 KHz) ultra short range low frequency wireless communication signal and the RF (2.4 GHz band high frequency wireless communication signal) signal in the authentication code for door lock opening / , It is possible to estimate the physical access distance between the smart door lock and the surrounding user terminal requesting the opening and closing of the door lock and add the value as the door lock authentication dictionary means to prevent the unauthorized hacking attempt have.

9 is a message transmission / reception scenario between a smart door lock and a user terminal according to another embodiment of the present invention. First, when the user turns the door lock handle, the door lock detects the door lock and sends a LF wake up signal to prepare a Smart Phone.

If it is impossible to receive a signal in the LF band from the user terminal, the user can directly execute and control the APP before use of the door lock, thereby preparing the user terminal to transmit the BLE advertisement message. When the smart door lock receives the advertisement message and recognizes the user terminal, the message transmission / reception is possible through the same process as shown in FIG.

That is, when the owner of the user terminal approaches the smart door lock and attempts door opening / closing (handle contact, etc.) with the authentication code for opening / closing the door lock and the daemon program in which the position beacon transmission function is implemented, The door lock is automatically recognized by the human body sensor or the steering wheel operation confirmation sensor, and the door lock is switched to the position beacon reception mode.

The smart door lock receiving the reception beacon from the user terminal measures the physical distance of the user terminal as the signal strength of the RF signal and confirms that it exists at a valid distance and exchanges the mutual authentication code between the user terminal and the smart door lock, When the authentication is confirmed, the door can be automatically opened and closed.

FIG. 10 is a configuration diagram illustrating a smart door lock and an authentication key transfer process of a user terminal according to an embodiment of the present invention. First, the indoor space management server 400 generates and prepares an authentication key. When the user terminal 200 requests authentication to the smart door lock 100, the smart door lock 100 transmits a request message to the indoor space management server 400. The indoor space management server 400 transmits the request message to the administrator terminal 500 ).

When the administrator terminal 500 requests the indoor space management server 400 for the authentication code, the indoor space management server 400 transmits the individual authentication code to the administrator terminal 500. The administrator terminal 500 transmits an authentication post-it message including the authentication code received from the indoor space management server 400 to the user terminal 200.

Meanwhile, the indoor space management server 400 transmits the authentication code to the smart door lock 100 as well. The user terminal 200 transmits an authentication request message including the authentication code given from the administrator terminal 500 to the smart door lock 100. The smart door lock 100 transmits authentication request messages including authentication codes received from the indoor space management server 400 And performs authentication with respect to the user's access in comparison with the code.

11 is a conceptual diagram illustrating a method of performing door-lock authentication based on a physical access distance using a dual signal strength (RSSI (RF, LF)) between the user terminal 200 and the smart door lock 100. FIG. And shows the short transmission and reception distances in the LF band and the relatively long transmission and reception distances in the UHF band.

In addition to user authentication using an authentication code, the present invention also includes a physical distance-based authentication function using radio signal strength. In the present invention, since the smart door lock 100 is formed by combining a signal of the LF band and a signal of the UHF band and calculating the physical distance by combining the signal of the LF band and the signal of the UHF band, the wireless signal intensity is inherently sensitive to ambient noise, And the user terminal 200 can be accurately calculated.

That is, in the process of transmitting / receiving a message between the smart door lock 100 and the user terminal 200, the LF band signal and the UHF band Bluetooth signal are exchanged. The signal strength obtained in this process is measured by the user terminal 200 It is possible to calculate the physical distance between the smart door lock 100 and the user terminal 200 by transmitting it to the smart door lock 100 and confirm whether the user is within the service range.

Therefore, even if a malicious user imitates the authentication code, authentication can be performed only if the user terminal 200 physically exists within the service range of the smart door lock 100. Therefore, an attempt to block an unauthorized hacking using a wireless signal can be blocked have.

12 is an exemplary view of a message structure transferred between a smart door lock and a user terminal. The authentication code message transmitted from the user terminal to the smart door lock includes the identifier of the user terminal and the type of the user terminal (smart phone, clock type, belt type, etc.), message length, LF signal strength (LF RSSI) Signal strength (RF RSSI), authentication code for user authentication, Checksum for packet integrity verification, and the like.

The general service message includes an identifier of the user terminal, a type of the user terminal (smart phone, clock type, belt type, etc.), a message length, a service message for transmitting service information (a post-it message), a checksum for checking the integrity of the packet, .

Meanwhile, in the case of the lost or stolen user terminal or the Smart Door Lock installed in the important space, the authentication type of the corresponding user terminal user can be changed to the strict mode, so that LF, RF, The fingerprint recognition result may be reflected in the authentication.

FIG. 13 is a flowchart of an access service operation of a smart door lock according to an embodiment of the present invention. Before the service starts, the door lock waits for user input in the ready state. When a user's input (door lock handle operation, touch or the like) is sensed (S10), it is discriminated whether the input is an internal input or an external input.

If it is an external input, as described above, the door lock performs user authentication based on the distance and the authentication code (S20). If the authentication fails, the message is displayed on the display and returns to the ready state (S30). If the authentication is successful, the welcome message is displayed on the display and the lock is released (S40, S50).

After waiting for a predetermined time to perform the lock again, the door is closed and the lock is performed (S60). If the door is not closed within a predetermined time, a warning alarm is reproduced and a warning alarm is transmitted to the user terminal to inform the user that the door is open (S70).

If the user input is an internal input in step S10, the door lock does not need to perform the authentication process. Instead, it is confirmed whether the door lock user is a neighboring user (S12). At this time, if there is a notification message to the user, it is displayed on the door lock screen and transmitted to the user terminal so that the user can recognize it (S14, S16). The door lock process described below is performed (S50 to S70). If a notification message does not exist in step S14, a farewell message is displayed (S18), and a door lock process is performed (S50 to S70).

FIG. 14 is a conceptual diagram for interlocking the smart door lock and the integrated management server 400 according to the embodiment of the present invention. In an environment where a plurality of door locks are installed, such as an office, a hotel, etc., each smart door lock is connected to the integrated management server 400 through an internal space utilization server, and various services can be provided through the smart door lock.

For example, when an attempt is made to reserve a conference room or a room remotely, it is possible to confirm whether or not the current room is used through the integrated management server, and to request a reservation and an authentication code. The authentication code is transmitted to the user together with the expiration date information and can be used for authenticating the door lock of the space.

15 is an exemplary view of a message displayed on a display unit of a smart door lock according to an embodiment of the present invention. Referring to FIG. 15, a message may be displayed on the display unit of the smart door lock such as an inhibition message, an outgoing message, a usage message, and the like, May be displayed. In addition, various service messages may be provided or a message set by a user may be transmitted and displayed using a smart phone as a user message.

According to the present embodiment, since it is possible to perform service only by daily action such as simply approaching the door lock or attempting to open and close the door lock without additional user operations (RFID access, keypad input, fingerprint recognition, etc.) for opening and closing the door lock The authentication service can be conveniently used.

Further, the smart door lock can provide various additional services such as door lock opening / closing information, voice, and welcome message through the infrastructure of the indoor space management server to the target user terminal or the voice speaker or display display device attached to the smart door lock itself. Because door lock opening and closing information can be received everywhere, there is advantage which is advantageous also for crime prevention.

For example, if a user having a user terminal through a motion detection sensor attached to a door lock handle or a body detection sensor built in a door lock inner or outer mold is divided into a case where the user enters through the door lock and a case where the user leaves the door, (For example, " Enter in aaa room at xy yy yy www, " and " Cigarette in this seminar room ") scheduled to be delivered to the user terminal via the smart door lock, (For example, " the electric heater is not in a turned-off state ") to the owner and the owner of the room by sending and receiving an appropriate notification or alarm message differentiated from the room.

In addition, when a user operates a server (fixed node) responsible for utilization of the internal space and requests the user to reserve a usage right for the door lock installation place through a mobile node (smart phone, clock, etc.) or a remote computer, To the corresponding user terminal. At this time, the reservation status and the information of the users who are currently utilized can be integrally displayed and managed through the LCD or the remote web server on the front door of the door lock.

If the user terminal requests a permanently or temporarily permissible authentication code for door lock opening and closing, the authentication code combining the physical allowed distance value based on the wireless signal strength, the encrypted authentication value, and the door lock use permission time information remotely An authentication code decentralized transmission service structure for transmitting the terminal and the corresponding smart door lock may be provided.

It is to be understood that the above-described embodiments are provided to facilitate understanding of the present invention, and do not limit the scope of the present invention, and it is to be understood that various modifications are possible within the scope of the present invention. It is to be understood that the technical scope of the present invention should be determined by the technical idea of the claims and the technical scope of protection of the present invention is not limited to the literary description of the claims, To the invention of the invention.

Claims (18)

A wireless communication unit for wirelessly communicating with a user terminal;
A location recognition unit for recognizing a location of the user terminal; And
And an authentication unit for performing access authentication of the user terminal,
Wherein the authentication unit performs access authentication of the user terminal based on the authentication code transmitted from the user terminal and the location of the user terminal,
Further comprising a display unit for displaying a message by distinguishing between the case of entrance and exit of the user terminal during the access authentication of the user terminal,
The indoor user sets the state of the indoor user to go out or re-enter the room through the contact type button in the door lock room,
Wherein the display unit displays a message informing the status of the indoor user set by the indoor user when a user having the user terminal is present,
Wherein the information message differentiated by the user terminal is transmitted in a push form according to the case of entrance and exit of the user terminal during the access authentication,
The information message including a welcome message,
A smart door lock having an autonomous object communication function for providing entrance and exit status information to the user terminal. The method according to claim 1,
Wherein the position recognition unit includes a signal strength recognition unit for recognizing a strength of a low frequency signal transmitted between the user terminal and the smart door lock,
Wherein the authentication unit has an autonomous object communication function for performing access authentication of the user terminal according to the authentication code and the strength of the low frequency signal. The method according to claim 1,
And a distance measuring unit for measuring a distance between the user terminal and the smart door lock using the intensity of a low frequency signal and a high frequency signal transmitted between the user terminal and the smart door lock,
Wherein the authentication unit has an autonomous object communication function for performing access authentication of the user terminal when the user terminal exists within a valid distance from the smart door lock. The method according to claim 1,
Wherein the position recognition unit includes a sensing unit for sensing a door opening / closing action of a user and generating a sensing signal,
Wherein the authentication unit has an autonomous object communication function for performing access authentication of the user terminal according to the detection signal. delete delete The method according to claim 1,
A smart door lock having an autonomous object communication function for transmitting access information and door open / close information to and from an administrator terminal during access authentication of the user terminal. The method according to claim 1,
A smart door lock having an autonomous object communication function for remotely transmitting a door opening request message to an administrator terminal when a door lock opening / closing request of an unauthorized user terminal is requested. The method according to claim 1,
A smart door lock having an autonomous object communication function for confirming an unauthenticated user terminal approaching within an effective distance and transmitting a publicity or notification message to the unauthorized user terminal. The method according to claim 1,
Wherein the smart door lock transmits the authentication code to the manager terminal when the manager terminal requests the authentication code,
Wherein the manager terminal has an autonomous object communication function for transmitting the authentication code to an authenticated terminal possessed by a user. The method according to claim 1,
And a LF transmitter for transmitting a low frequency band wakeup signal to the user terminal. The method according to claim 1,
Further comprising an alarm generating section for generating a warning alarm if the door is not closed within a set time after the door is opened,
And transmitting the warning alarm to the user terminal. The method according to claim 1,
A smart door lock having an autonomous object communication function for storing character, voice or image notification information and displaying characters, voice or image on the display device of the door lock according to the situation. delete The method according to claim 1,
Wherein the authentication unit has an autonomous object communication function for performing access authentication on each of a plurality of user terminals registered in advance based on the authentication code and the location of the user terminal. delete delete A wireless communication unit for wirelessly communicating with a user terminal, a location recognition unit for recognizing a location of the user terminal, and an authentication unit for performing access authentication of the user terminal, wherein the authentication unit includes: A smart door lock that performs access authentication of the user terminal based on the location of the terminal;
A low frequency receiver for receiving a low frequency band wake up signal received from the smart door lock, a signal strength measuring unit for measuring the strength of the wake up signal, a position notification beacon and authentication unit for wireless communication with the smart door lock, A wireless communication unit for transmitting a code message to the smart door lock, wherein the authentication code message includes a user terminal identifier, an intensity of the wake-up signal, and an authentication code; And
And a server for transmitting, to the terminal and the smart door lock, an authentication code combining the allowed distance value based on the radio signal strength and the encrypted authentication value and the use time information when the authentication code is requested from the terminal,
The smart door lock may further include a display unit for displaying a message by distinguishing the entrance and exit of the user terminal from the entrance and exit of the user terminal, Wherein the display unit displays a message informing the status of the indoor user set by the indoor user when the user having the user terminal enters the display unit, And transmits the information message differentiated to the terminal of the user as a push type, the information message includes a welcome message, and provides the access terminal status information to the user terminal.

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