KR20230123283A - Smart door lock device linked to a blockchain-based contact app - Google Patents

Abstract

The present invention relates to a smart door lock device linked with a contact app based on a blockchain, and a contact block chain unit that creates a contact block in conjunction with a contact app of a resident terminal and stores it in a contact block chain, and a visitor terminal in the contact block chain. It includes a visitor authentication unit that performs visitor authentication according to whether contact information is registered, and a door lock release unit that unlocks the door lock based on the authentication result of the visitor.

Description

Smart door lock device linked to a contact app based on blockchain {SMART DOOR LOCK DEVICE LINKED TO A BLOCKCHAIN-BASED CONTACT APP}

The present invention relates to a smart door lock device linked to a contact app based on a blockchain, and more particularly, based on a blockchain, visitor authentication is performed according to contact registration between a resident terminal and a visitor terminal to allow access without entering a password It relates to a smart door lock device linked to a contact app based on blockchain.

With the rapid development of IT technology, automation is being carried out in various fields, and home automation systems that organically combine various devices in the home to provide convenience and safety are quickly put into practical use. can control.

Since most of the existing digital door locks support opening and closing of doors through password input, there is a disadvantage in that security loopholes exist. Therefore, development of a non-contact door lock device is currently in progress, and door lock devices to which various functions based on smart phones are applied are being developed. The non-contact door lock device can operate the door opening and closing device of the door lock device using short-range communication or commercial wireless communication, but when using a network, the non-contact door lock system has a server connected to the door lock and communicates with the user's terminal through TCP/IP protocol. The data transmitted and received in all processes of determining whether an outsider has invaded based on the data transmitted from the sensor are vulnerable to forgery and hacking.

In addition, although user authentication and data security have already been performed using some encryption technologies or software, the encryption methods are relatively weak or simple and depend on specific software, so preservation of intact data and user There is a flaw in the authentication decision.

Korean Registered Patent No. 2017-0047263 relates to a smart door lock system based on a block chain, a smart door lock, and a terminal for controlling a door lock. When nodes requesting authentication in a smart door lock system request authentication to an authentication server, the authentication The server determines whether the node requesting authentication is legitimate, propagates a message that the node has been authenticated to the blockchain network, the node authenticated by the authentication server participates in the blockchain network, and the door lock authenticated in the blockchain network The control message sent by the control terminal and the alarm message that the smart door lock determines using the data provided from the sensors and sends to the authenticated user are combined and signed with the private key of the sending node, thereby realizing non-repudiation. there is.

Korean Patent Registration No. 2017-0047263 (2017.04.12)

An embodiment of the present invention is to provide a smart door lock device linked to a contact app based on a blockchain that enables access without entering a password by performing visitor authentication according to contact registration between a resident terminal and a visitor terminal based on a blockchain. .

An embodiment of the present invention is a blockchain-based contact app interworking smart that stores a contact block in a contact block chain in conjunction with a contact app of a resident terminal and performs visitor authentication according to whether a visitor terminal contacts are registered in the contact block chain. It is intended to provide a door lock device.

An embodiment of the present invention is to provide a smart door lock device linked to a blockchain-based contact app that unlocks a door lock based on a visitor's authentication result.

Among the embodiments, a smart door lock device linked to a contact app based on a blockchain includes a contact block chain unit that creates a contact block by interworking with a contact app of a resident terminal and stores it in a contact block chain, and a contact block of a visitor terminal in the contact block chain. It includes a visitor authentication unit that performs visitor authentication according to whether or not the visitor is registered, and a door lock release unit that unlocks the door lock based on the authentication result of the visitor.

The contact blockchain unit generates a contact block based on contact information registered in the contact app of the resident terminal, creates a resident index of the contact block based on the contact information of the resident terminal, and sets the contact block to the It can be stored by adding it to the contact blockchain corresponding to the resident index.

The contact blockchain unit can create a new contact block based on the newly stored contact information when a new contact is registered and stored in the contact app of the resident terminal, and additionally store the created new contact block in the contact block chain linked to the resident index. there is.

The contact block chain unit generates a visit block based on visit information including an authentication time for the contact block used for visitor authentication, and stores the generated visit block in a derived block chain derived from the contact block to manage visit history. can do.

The visitor authentication unit may perform identity authentication of the visitor terminal and, after identity authentication, visitor authentication through whether or not the contact information of the visitor terminal is registered in the contact block chain.

The visitor authentication unit may scan a QR code for self-authentication of the visitor terminal and perform identity authentication of the visitor through the scanned QR code.

The visitor authentication unit may perform visitor authentication through a call between the resident and the visitor when the contact information of the visitor terminal is not registered in the contact block chain during the visitor authentication process.

The visitor authentication unit provides a notification to the resident terminal when the contact information of the visitor terminal is not registered in the contact block chain, and determines whether a new contact block of the visitor terminal is stored in the contact block chain within an effective time range after providing the notification. You can perform visitor authentication by checking.

The disclosed technology may have the following effects. However, it does not mean that a specific embodiment must include all of the following effects or only the following effects, so it should not be understood that the scope of rights of the disclosed technology is limited thereby.

A smart door lock device linked to a contact app based on a blockchain according to an embodiment of the present invention performs visitor authentication according to contact registration between a resident terminal and a visitor terminal based on a blockchain to allow access without entering a password.

According to an embodiment of the present invention, a smart door lock device linked to a contact app based on a blockchain stores a contact block in a contact block chain in conjunction with a contact app of a resident terminal, and a visitor according to whether a contact is registered in a visitor terminal in the contact block chain. authentication can be performed.

A smart door lock device linked to a contact app based on a blockchain according to an embodiment of the present invention may unlock the door lock based on a visitor's authentication result.

1 is a diagram illustrating a smart door lock system linked to a contact app according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating the physical configuration of the smart door lock device linked to the contact app of FIG. 1 .
3 is a view explaining the functional configuration of the smart door lock device linked to the contact app of FIG. 1 .
4 is a flowchart illustrating a process of performing a contact app-linked smart door lock device.
5 is a flowchart of an example of performing a contact app-linked smart door lock device.

Since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

Meanwhile, the meaning of terms described in this application should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected to the other element, but another element may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening element exists. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Expressions in the singular number should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to an embodied feature, number, step, operation, component, part, or these. It should be understood that the combination is intended to designate a range, and does not preclude the possibility of a range or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In each step, the identification code (eg, a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step clearly follows a specific order in context. Unless otherwise specified, it may occur in a different order than specified. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present application.

1 is a diagram showing a smart door lock system linked to a contact app according to an embodiment of the present invention.

Referring to FIG. 1, the blockchain-based contact app-linked smart door lock system 100 includes a resident terminal 110, a visitor terminal 111, a contact app-linked smart door lock device 130, and a database 150. and can be connected through mutual networks. Here, the resident terminal 110 and the visitor terminal 111 may correspond to computing devices such as smart phones, tablet PCs, or wearable devices.

The resident terminal 110 and the visitor terminal 111 may install and execute a dedicated program or application capable of interworking with the contact information of the resident terminal 110 .

The contact app-linked smart door lock device 130 may create a contact block by interworking with the contact app of the resident terminal 110 and store the contact block in the contact block. The contact app-linked smart door lock device 130 performs visitor authentication according to whether the visitor terminal 111 is registered as a contact in the contact block chain, and unlocks the door lock according to the visitor's authentication result. The contact app-linked smart door lock device 130 is not necessarily limited thereto, and may be implemented as a computer or server.

The contact app-linked smart door lock device 130 may be connected to the resident terminal 110 and the visitor terminal 111 through a wired network or a wireless network such as Bluetooth or WiFi, and the resident terminal 110 and the visitor terminal ( 111) and data can be transmitted and received.

The database 150 may be constructed by receiving contact information for each user through the resident terminal 110 . In addition, the database 150 may provide the visitor's authentication result to the resident terminal 110 and the visitor terminal 111 according to the visitor's request. Here, the resident terminal 110 and the visitor terminal 111 are computing devices managed by residents or users, and may be implemented as, for example, portable computing devices such as smart phones. The database 150 may store a visitor's authentication result and a door lock release history according to management of the resident terminal 110 .

FIG. 2 is a diagram illustrating the physical configuration of the smart door lock device linked to the contact app of FIG. 1 .

Referring to FIG. 2 , the smart door lock device 130 linked to a contact app may include a processor 210 , a memory 230 , a user input/output unit 250 and a network input/output unit 270 .

The processor 210 may execute a contact app-linked smart door lock service procedure according to an embodiment of the present invention, manage the memory 230 read or written in this process, and volatile information in the memory 230. Synchronization time between memory and non-volatile memory can be scheduled. The processor 210 may control the overall operation of the smart door lock device 130 linked to the contact app, and is electrically connected to the memory 230, the user input/output unit 250, and the network input/output unit 270, thereby data between them. You can control the flow. The processor 210 may be implemented as a central processing unit (CPU) of the contact app-linked smart door lock device 130 .

The memory 230 is implemented as a non-volatile memory such as a solid state disk (SSD) or a hard disk drive (HDD) and includes a secondary storage device used to store all data necessary for the contact app interlocking smart door lock device 130. and may include a main memory implemented as a volatile memory such as RAM (Random Access Memory). Also, the memory 230 may store a set of instructions for executing the database construction method according to the present invention by being executed by the electrically connected processor 210 .

The user input/output unit 250 includes an environment for receiving a user input and an environment for outputting specific information to the user, and includes an adapter such as a touch pad, a touch screen, an on-screen keyboard, or a pointing device. It may include devices and output devices including adapters such as monitors or touch screens. In one embodiment, the user input/output unit 250 may correspond to a computing device connected through a remote connection, and in such a case, the smart door lock device 130 linked to a contact app may be performed as an independent server.

The network input/output unit 270 provides a communication environment for connection with the resident terminal 110 and the visitor terminal 111 through a network, for example, LAN (Local Area Network), MAN (Metropolitan Area Network), WAN It may include adapters for communication such as (Wide Area Network) and Value Added Network (VAN). In addition, the network input/output unit 270 may be implemented to provide a short-range communication function such as WiFi or Bluetooth or a 4G or higher wireless communication function for wireless transmission of learning data.

3 is a view explaining the functional configuration of the smart door lock device linked to the contact app of FIG. 1 .

Referring to FIG. 3 , the contact app-linked smart door lock device 130 may include a contact blockchain unit 310, a visitor authentication unit 320, a door unlock unit 330, and a control unit 340.

The contact block chain unit 310 may create a contact block in conjunction with the contact app of the resident terminal 110 and store it in the contact block chain. Here, the contact app may correspond to contact information stored in the resident terminal 110, but is not necessarily limited thereto. The contact block chain unit 310 may create a contact block for contact information including the name, phone number, address, and date of birth of the contact stored in the resident terminal 110 and store it in the contact block chain. The contact block chain unit 310 can prevent the tampering of the contact information of the resident by storing the contact information stored in the resident terminal 110 in the contact block chain.

In one embodiment, the contact blockchain unit 310 creates a contact block based on contact information registered in the contact app of the resident terminal, and generates a resident index of the contact block based on the contact information of the resident terminal, The contact block may be added to and stored in the contact block chain corresponding to the resident index. Here, the resident index may correspond to the address or location of the contact block chain in which each resident information is stored. The contact blockchain unit 310 may store each contact information in each resident index according to registered residents. Here, the contact block chain unit 310 may store in the same resident index or separately store information when there is overlapping information for each contact information.

In one embodiment, when a new contact is registered and stored in the contact app of the resident terminal, the contact blockchain unit 310 creates a new contact block based on the newly stored contact information and links the created new contact block to the corresponding resident index. Contacts can be additionally stored in the blockchain. That is, when a new contact is registered and stored in the resident terminal 110, the contact block chain unit 310 searches the contact information of the resident terminal 110 to generate a new contact block and additionally store it in the corresponding resident index. Here, the contact blockchain unit 310 may request contact information inquiry from the resident terminal 110 when a new contact information is registered and stored in the resident terminal 110 . The contact block chain unit 310 may receive a contact information change request from the resident terminal 110 and retrieve contact information of the resident terminal 110 to correct registered contact information.

In one embodiment, the contact block chain unit 310 generates a visit block based on visit information including an authentication time for the contact block used for visitor authentication and places the generated visit block in a derived block chain derived from the contact block. You can save and manage your visit history. Here, the contact blockchain unit 310 may store the authentication information visit history received from the visitor terminal 111 in the database 150 . Derivative blockchains may include blocks subordinate to the contact block in which each resident-based contact information is stored. Based on the visit history, the contact block chain unit 310 may display visit history including recent visitors and most frequent visitors on the resident terminal 110 .

The visitor authentication unit 320 may perform visitor authentication according to whether the visitor terminal 111 is registered as a contact in the contact block chain. The visitor authentication unit 320 may receive contact information from the visitor terminal 111 or receive visitor contact information through voice recognition. The visitor authentication unit 320 inquires the contact block chain, and may request visitor authentication from the visitor terminal 111 in the case of a visitor whose contact information is not registered in the contact block chain. Visitor authentication may correspond to a confirmation procedure for contact information stored in the contact block chain. The visitor authentication unit 320 may request authentication of information including contact information stored in the contact block chain through procedures such as login of the visitor terminal 111 or user authentication through phone number input.

In one embodiment, the visitor authentication unit 320 may perform identity authentication of the visitor terminal 111 and perform visitor authentication through whether or not the contact information of the visitor terminal 111 is registered in the contact block chain after identity authentication. there is. The visitor authentication unit 320 may unlock the door lock through the door lock release unit 330 when the contact information of the visitor terminal 111 is registered in the contact block chain. The visitor authentication unit 320 may provide corresponding visitor information to the resident terminal 110 when the contact information of the visitor terminal 111 is not registered in the contact block chain. The visitor authentication unit 320 may receive corresponding visitor information from the resident terminal 110 and receive a request from the resident.

In one embodiment, the visitor authentication unit 320 may scan the QR code for authentication of the visitor terminal 111 and perform authentication of the visitor through the scanned QR code. The visitor authentication unit 320 may request a QR code for authentication of the visitor's identity from the visitor terminal 111 . If the visitor authentication unit 320 does not receive the QR code for authentication of the visitor from the visitor terminal 111 within the time set by the resident, the request may be canceled. The visitor authentication unit 320 may re-request a QR code for authentication of the visitor terminal 111 when the visitor fails to authenticate himself within the time set by the resident.

In one embodiment, the visitor authentication unit 320 may perform visitor authentication through a call between a resident and a visitor when the contact information of the visitor terminal is not registered in the contact block chain during the visitor authentication process. The visitor authentication unit 320 may perform visitor authentication through the resident terminal 110 or the visitor terminal 111 after a call between the resident and the visitor. In one embodiment, the visitor authentication unit 320 may request a call from another resident, including a family member, registered in advance by the resident when the resident does not receive a call. The visitor authentication unit 320 may provide a notification to the resident terminal 110 when the resident does not receive a call, and display a missed call item on the resident terminal 110 .

In one embodiment, the visitor authentication unit 320 provides a notification to the resident terminal 110 when the contact information of the visitor terminal 111 is not registered in the contact block chain, and provides a notification to the visitor terminal in the contact block chain within an effective time range. Visitor authentication may be performed by checking whether a new contact block in (111) is additionally stored. The visitor authentication unit 320 may notify the resident terminal 110 of a visit by a visitor who is not registered in the contact app of the resident terminal 110 by sending a text message or Kakao Talk to the visitor contact information. At this time, the visitor authentication unit 320 may inquire whether to register the visitor's contact information in the contact app, and if the resident selects registration, the visitor's contact information may be automatically registered in the contact app of the resident terminal 110. there is. The visitor authentication unit 320 may perform visitor authentication and provide a result to the visitor terminal 111 when a new block is stored in the contact block chain through the resident terminal 110 within an effective time range.

The door lock release unit 330 may unlock the door lock based on the visitor's authentication result. The door lock release unit 330 may unlock the door lock when visitor authentication is successful, and may maintain locking of the door lock when visitor authentication fails. Here, the resident terminal 110 may receive a call request from the visitor terminal 111 . After a call between the resident and the visitor, the door unlock unit 330 may request the resident terminal 110 to perform visitor authentication or notify the visitor terminal 111 that the visitor authentication has been approved. The door lock release unit 330 may unlock the door lock when the request is approved by the user terminal 110 .

In one embodiment, the door lock release unit 330 may receive a door lock release request for a door lock from the corresponding resident terminal 110 and determine whether to release the door lock according to the approval of the resident terminal 110 . In addition, the door lock release unit 330 may receive a temporary door lock release request, and may determine the temporality (ie, release available time) according to the nature of the user's visit. For example, the door lock release unit 330 may determine to temporarily release the door lock for the corresponding visitor according to the visit characteristics of the visitor. The visiting nature of the visitor may include family members, acquaintances, and company members, but is not necessarily limited thereto.

The control unit 340 controls the overall operation of the contact app-linked smart door lock device 130, the contact blockchain unit 310, the visitor authentication unit 320, the user unauthorized area processing unit 330, and the user location processing unit 340. ) can manage the control flow or data flow between them.

4 is a flowchart illustrating a process of performing a contact app-linked smart door lock device.

In FIG. 4 , the contact block chain unit 310 creates a contact block in conjunction with the contact app of the resident terminal 110 and stores it in the contact block chain (step S410). The visitor authentication unit 320 performs visitor authentication according to whether the visitor terminal 111 is registered as a contact in the contact block chain (step S420). The door lock release unit 330 unlocks the door lock based on the visitor's authentication result (step S430).

5 is a flowchart of an example of performing a contact app-linked smart door lock device.

In FIG. 5 , the resident interlocks the contact app of the resident terminal 110 with the contact app-linked smart door lock device 130 through a dedicated program or application (step S510). The visitor performs visitor authentication through the visitor terminal 111 (step S520).

If the visitor has succeeded in visitor authentication, the door lock release unit 330 requests unlocking of the door lock (step S530). If the visitor authentication fails, the visitor requests a call to the resident terminal 110 through the visitor terminal 111 (step S540). The door lock is unlocked based on the visitor's authentication result (step S550).

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

100: Smart door lock system linked to contact app
130: contact app linked smart door lock device
310: contact blockchain unit 320: visitor authentication unit
330: door lock release unit 340: control unit

Claims (8)

A contact block chain unit that creates a contact block in conjunction with the contact app of the resident terminal and stores it in the contact block chain;
a visitor authentication unit performing visitor authentication according to whether or not the visitor terminal is registered as a contact in the contact block chain; and
Blockchain-based contact app interlocking smart door lock device including a door lock release unit for unlocking the door lock based on the visitor's authentication result.
The method of claim 1, wherein the contact blockchain unit
A contact block is created based on contact information registered in the contact app of the resident terminal, a resident index of the contact block is created based on the contact information of the resident terminal, and the contact block corresponds to the resident index A smart door lock device linked to a blockchain-based contact app, characterized in that it is added to and stored in the contact block chain.
The method of claim 2, wherein the contact blockchain unit
When a new contact is registered and stored in the contact app of the resident terminal, a new contact block is created based on the newly stored contact information and the new contact block is additionally stored in the contact block chain linked to the corresponding resident index. Chain-based contact app linking smart door lock device.
The method of claim 3, wherein the contact blockchain unit
For the contact block used for visitor authentication, a visit block based on visit information including an authentication time is generated and the generated visit block is stored in a derivative block chain derived from the contact block to manage visit history. A smart door lock device linked to a contact app based on blockchain.
The method of claim 1, wherein the visitor authentication unit
A smart door lock device linked to a blockchain-based contact app, characterized in that performing identity authentication of the visitor terminal and performing visitor authentication through whether or not the contact information of the visitor terminal is registered in the contact block chain after identity authentication.
The method of claim 5, wherein the visitor authentication unit
A smart door lock device linked to a blockchain-based contact app, characterized in that for scanning a QR code for authentication of the visitor terminal and performing authentication of the visitor through the scanned QR code.
The method of claim 5, wherein the visitor authentication unit
In the visitor authentication process, if the contact of the visitor terminal is not registered in the contact block chain, the visitor authentication is performed through a call between the resident and the visitor. Blockchain-based contact app linked smart door lock device.
The method of claim 5, wherein the visitor authentication unit
If the contact information of the visitor terminal is not registered in the contact blockchain, a notification is provided to the resident terminal, and visitor authentication is performed by checking whether a new contact block of the visitor terminal is additionally stored in the contact blockchain within an effective time range after providing the notification. Blockchain-based contact app interlocking smart door lock device, characterized in that for performing.