KR20170094470A

KR20170094470A - Smart doorlock system and operating method of the same

Info

Publication number: KR20170094470A
Application number: KR1020160015340A
Authority: KR
Inventors: 강철웅; 강형규; 성민건; 허수미
Original assignee: 제주대학교 산학협력단
Priority date: 2016-02-06
Filing date: 2016-02-06
Publication date: 2017-08-18

Abstract

The present invention provides a smart door lock system which comprises a door lock locking device, a short-range wireless communication terminal, and a door security management server. User information and beacon information are registered in a security management server and a wireless terminal. If a user who carries the wireless terminal approaches the door lock system, the user to be registered is determined through a Bluetooth beacon. When the user is registered, the security management server transmits a one-time password to the wireless terminal and the door lock system. When the one-time password is input in the door lock system from the user, a locking state of the door lock locking device is released. According to the present invention, security is improved through double authentication, and password leakage can be essentially prevented by using a one-time password.

Description

[0001] Smart door lock system and operating method [0002]

The present invention relates to a digital door lock, and more particularly, to a smart door lock system with improved security and easy operation and management.

In various buildings such as houses and offices, locks of doors and various security systems are installed in order to protect the safety of people and property, security personnel are monitored to monitor the access of outsiders, and illegal intrusion of unauthorized persons is prevented .

In the past, many manual locks have been used, but there are inconveniences to carry the keys. If the key is lost, it is difficult to unlock it. Also, it is easily exposed to illegal intrusion due to duplication of keys. In the United States. Since the introduction of digital door locks to compensate for the inconvenience of manual locking devices, the penetration rate of digital door locks has been steadily increasing. According to digital door lock domestic statistics, it has more than doubled from 2009 to 2014 (Source: National Statistical Office) .

In general, the most commonly used password locker stores card numbers and passwords that allow access to the memory, and when an unauthorized access card is used or a wrong password is entered, the access control system locks the door To prevent an unauthorized person from entering the door, and in contrast, if the authorized card number is used or the password is entered correctly, the access control system releases the door from the locked state.

However, existing digital door locks have a security problem such that an outsider intrudes a password through remained fingerprints in the process of inputting a password or presses an unlock button inside a digital door lock through a milk inlet of a main door. A new system that overcomes the limitations of such digital door locks is needed in public housing, research facilities, and public institutions where security is strictly maintained, as well as in general houses.

According to the disclosure of Japanese Laid-Open Patent Application No. 2015-142126, wiring for video, audio and data signals is required between a door lock installed on a porch and an interphone or a video phone installed in a room when a digital door lock is installed. In the case of wiring to a building, the cost of the wiring work may be much higher than the price of the digital door lock and the accompanying interphone due to the characteristics of the building structure. Thus, the door lock can be installed and used conveniently A door lock system using a wireless telephone which can not acquire the absence information of a door lock user due to a door lock call even in the absence of a user of the door lock is proposed. In this case, even when the user is absent, the information about the absence of the door lock user due to the door lock call can not be obtained, thereby improving security. However, the wireless phone is a means for remote communication with the door lock. , User identification, and so on, so that the security of the digital door lock is not significantly enhanced.

In order to enhance the security of the digital door lock, according to the '2013-115557 patent, a keypad input of a user and a pressure for touching the keypad are sensed, and a password is input through sensing the input of the numeric keypad and the tactile pattern Door lock is proposed. In this case, the security of the door lock can be enhanced. However, even if the user himself or herself can not access the door, it is possible to reach the situation where the keypad touch pressure is changed or the tactile pattern is changed according to the change of the season or the body, A large inconvenience may be caused in a situation in which it is necessary to maintain the consistency.

In addition, various security methods such as NFC and fingerprint recognition are currently being developed. However, it is possible to prevent the possibility of crime due to simple manipulation from the outside due to the problem of duplication of the built-in chip of the card, There is no limit.

Accordingly, it is required to develop a new technology that can satisfy the convenience and security of a digital door lock at the same time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above technical background, and an object of the present invention is to provide a digital door lock in which user authentication and password generation are performed stepwise or simultaneously to greatly improve security.

Another object of the present invention is to prevent the leakage of the password of the digital door lock by utilizing the location based system and the one time use password.

Other objects and technical features of the present invention will be more specifically described in the following detailed description.

In order to accomplish the above object, the present invention provides a door locking device for locking and unlocking by an electrical signal, a short range wireless communication terminal for outputting a signal to the wireless terminal when the wireless terminal is within a signal reaching distance, Lock control unit for controlling the lock and unlock of the door lock apparatus by a control signal transmitted to the lock control unit and the wireless terminal, And a communication unit for transmitting authentication information, door lock control information, and one-time password transmission information between the door lock unit, the near field wireless communication unit, the door security management server, and the wireless terminal Smart door lock system.

The present invention also provides a door lock system including a beacon, a security management server, and a door lock device and capable of communicating with an external wireless terminal, wherein user information and beacon information are registered in the security management server and the wireless terminal, The security management server transmits the disposable password to the wireless terminal and the door lock system when the user who is carrying the disposable password is a user who is registered with the Bluetooth beacon, And operating the door lock apparatus to release the locked state when the door lock system is input into the door lock system.

The door lock system of the present invention detects a registered user through a Bluetooth beacon. If the registered user is a registered user, the door lock system executes an application capable of receiving a disposable password to the wireless terminal, inputs an application execution password designated in advance by the user , And may cause the security management server to generate the disposable password when the application execution password is matched.

The door lock system of the present invention is characterized in that the door lock system comprises a first mode for operating a digital door lock with a password designated by a user and a second mode for operating a digital door lock by generating a digital one- 2 mode.

INDUSTRIAL APPLICABILITY According to the present invention, the leakage of the password of the digital door lock can be essentially blocked and the security of the digital door lock can be drastically improved. As a result, safety and property damages of houses and offices can be restrained, and it can contribute to enhancement of security of major facilities and public institutions and core buildings of various countries.

Also, it is easy to switch to the normal mode and the security mode, thereby providing convenience in use. In addition, after the development of the system, mass production is easy, and the increase in manufacturing cost and purchase unit price is not excessive, so it is advantageous for nationwide supply and overseas market development.

1 is a conceptual diagram of a door lock system according to the present invention;
2 is a block diagram of the door lock system of the present invention
Figure 3 illustrates a wireless terminal < RTI ID = 0.0 >
4 is a flowchart showing a method of operating the door lock system of the present invention
5 is a schematic diagram showing communication with a wireless terminal during the operation of the door lock system.

The present invention proposes a new digital door lock system that generates a password for unlocking a door lock as well as user authentication by utilizing a location based system and a one-time password. Specifically, a smart door lock system using primary authentication using location-based user identification and secondary authentication using a one-time password input received from a wireless terminal is provided to solve a digital door lock security threat.

The door lock system of the present invention includes a server capable of processing and storing data on door security and access record, a wireless terminal having a door lock related application embedded therein, and a door lock device including a wireless communication terminal such as a beacon.

FIG. 1 is a conceptual diagram of a door lock system of the present invention, which is connected to an application of a wireless terminal through a beacon mounted inside a door lock, and is subjected to a primary user authentication. After the first authentication is completed, the server issues a one-time password, and the user enters the door lock directly to complete the second authentication. It is possible to have more security than the existing digital door lock system since it is subjected to various stages of authentication in a short time.

More specifically, the door lock system 100 of the present invention may include various components as shown in FIG.

The door lock device 110 performs mechanical locking and unlocking by an electrical signal, and includes a lock control part 112 and a short-range wireless communication terminal 120. The short-range wireless communication terminal transmits a signal to the wireless terminal when the external wireless terminal approaches the signal reaching distance, and is utilized for the primary user authentication. The controller controls locking and unlocking of the door lock device by a control signal transmitted through wireless communication.

A beacon is suitable for the short-range wireless communication terminal. A beacon is a type of short-range wireless sensor that recognizes the location of a smartphone user and sends / receives data to and from each other. It uses Bluetooth to locate a user within a certain distance range through short- , Various information necessary for the user can be transmitted. In particular, beacons are indoors location - based systems that can be used to obtain location information in a room where GPS can not reach, and can be effectively applied to a service for acquiring information on a specific area or for guiding a location.

In the preferred embodiment of the present invention, the short-range wireless communication terminal is suitably a BLE beacon which minimizes power consumption by utilizing Bluetooth low energy (BLE) applied from Bluetooth 4.0. In operation principle of the beacon of the BLE, the BLE device transmits a packet including data such as a device ID, a service place name, and a transmitted signal strength to any nearby terminals, for example. The receiving terminal calculates the position using the ID of the BLE device or the distance between the receiving terminal and the BLE device using the reference point position or the multifunction position. The BLE beacon has advantages such as miniaturization of the terminal, low power consumption, minimization of the influence of the indoor environment such as walls, compared to the conventional sound beacon, and the transmission distance is extended to about 50 meters as compared with the NFC (Near Field Communication) The reliability of the user authentication of the door lock system can be increased.

In particular, according to the present invention, the efficiency of the primary user authentication can be improved by limiting the beacon not to provide information to any terminal but to provide information only to a terminal where a user is registered or a specific application is installed.

The door lock system of the present invention includes a security management server 130 that performs data management related to performing additional steps and accessing records for user authentication. The security management server includes a function of generating a one time password (OTP). The generated one-time password is transmitted to the lock control unit and the wireless terminal, for example, And a data storage unit 132 for storing information.

The data storage unit stores the user information related to the door lock, the access record of the door lock, and the like in the database, and can grasp the life pattern of the user on the basis of the stored data and can expand the service to another object Internet (IoT) service .

One important function of the security management server's door lock security is to generate a one-time password (OTP). OTP (One Time Password) is a technique in which an arbitrary password is generated and the password is lost when a predetermined time has passed or used. The security management server can increase the security of the door lock by generating a one-time password, while preventing the leakage of the password determined by the user. The security management server for OTP generation can be implemented simply as a device such as Raspberry Pi 2, etc. In case of Raspberry Pi 2, since an operating system (OS) can be installed in the SD memory card or desired software can be embedded, Which can contribute to reducing the size and manufacturing cost.

In addition, the door lock system of the present invention includes a separate communication unit 140 for transmitting authentication information, door lock control information, and one-time password transmission information between the door lock apparatus, the near field wireless communication terminal, the door security management server, .

3 shows a wireless terminal 200 in communication with a door lock system. Such a wireless terminal may be not only a smart phone widely used in the public, but also a wearable device such as a smart watch or smart glasses, as well as various terminals capable of a tab book, a tablet, a PDA, and other wireless communication.

The wireless terminal includes a door lock exclusive application (App) 210 that is initially installed or downloaded afterwards. This doorlock-only app is automatically activated through the beacon signal when the beacon recognizes that the user has accessed the door lock and is used for user secondary authentication.

In the existing digital door lock, a pattern is easily recognized by a third party by repeatedly using a similar pattern by the user, and as a result, there is a possibility that the door lock is released from a simple operation from the outside. In contrast, the smart door lock system according to the present invention recognizes and locates the user using the indoor location-based BLE beacon while releasing the door lock by receiving a one-time password from the security management server, thereby blocking the possibility of third- The security can be greatly improved.

In addition, the door lock can be structured so as not to be exposed to the outside of the door, so that the door lock can be broken by applying an impact from the outside, and the outflow of the password pattern can be prevented.

Referring to Figure 4, the operation of the door lock system of the present invention will be described in more detail. The door lock system of the present invention registers user information and beacon information in a security management server and a wireless terminal as a precaution for providing enhanced security (step S110). In the case of a wireless terminal, beacon information can be registered in a door lock application, and a MAC address of a beacon can be registered, for example. Unlike existing door locks, beacons can be recognized only by designated users through a process of registering beacons in the door lock application in advance.

When the user carrying the wireless terminal approaches the door lock system (step S120), the registered user is identified through the Bluetooth beacon (step S130). Since the beacon is registered in the application of the wireless terminal so that only the pre-registered user can recognize it, unnecessary information is not transmitted to the unregistered outsider or the door-lock related signal is not provided to the unspecified majority. In addition, if the beacon signal is not received, the transition to the second stage in which the lock can be released can not be performed, and thus the possibility of the third party unlocking the door is excluded.

Upon recognizing the wireless terminal of the user of the beacon, a signal is generated as shown in FIG. 5 (step S130). The door lock application is activated in the wireless terminal receiving the beacon signal (step S140). The primary user authentication is performed through a process of recognizing that the user is a user through the operation of the application and the communication between the wireless terminal and the security management server.

After completing the user authentication, the door lock application requests the security management server to generate the one time use password, and the server generates the one time use password and simultaneously transmits the one time use password to the door lock and the wireless terminal (step S150) . In this process The door lock application of the wireless terminal notifies the server that the user has accessed the door lock, and receives the disposable password from the server.

When the disposable password is input from the user to the door lock system, the door lock apparatus is operated to release the locked state (step S160). The lock state can be released through the control unit (112 of FIG. 2) of the door lock apparatus. Although the user may directly input the disposable password into the touch pad of the display formed on the door surface, The password may be transmitted so that the lock of the door lock is released without the user's inputting process. Accordingly, in the door lock system of the present invention, the input of the disposable password includes not only a physical input process but also an electronic input method by wireless communication.

In the present invention, after the registered user is identified through the Bluetooth beacon, the registered user may be allowed to execute an application capable of receiving the one-time password to the wireless terminal, and to input the application execution password predetermined by the user have. In this case, if the application execution password is matched, the security management server generates the disposable password, thereby further enhancing the security level.

The door lock system may be switched to a first mode for operating the digital door lock with a password designated by the user and a second mode for operating the digital door lock by generating the digital disposable password through the security management server. Such a mode switching can enhance the convenience of the user when the security is not requested at the normal time, and can enhance the utilization of the door lock system by giving a strong security when the house is vacated for a long time or the security is to be maintained in particular .

Through the operation of the door lock system according to the present invention, security is maximized by first recognizing a user with a beacon, generating a disposable password secondarily, and then inputting the corresponding password. That is, since the user who has the access right is identified through the beacon, the access to the outside can be blocked. In addition, since the password leakage is completely blocked by using OTP, the occurrence of crime can be suppressed.

In addition, through the present invention, various services for intelligent residential environment can be provided by being fused with the object Internet platform. For example, a door security system management server accumulates a user's entry and exit database. This database is used to control lighting, room temperature, and household appliances automatically according to user's access pattern through machine learning technology. It can be applied as a smart home service.

Such a door lock system can be effectively applied to institutions that require special security such as public housing, office buildings, public institutions such as mint construction and national museums, and research institutes.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modified, modified, or improved.

100: Door lock system 110: Door lock device
112: control unit 120: short-range wireless communication terminal
130: security management server 132: data storage unit
140: communication unit 200: wireless terminal
210: Application

Claims

A door lock device for performing mechanical locking and releasing by an electrical signal,
A short range wireless communication terminal for outputting a signal to the wireless terminal when the wireless terminal approaches a signal arrival distance;
A lock control unit for controlling the locking and unlocking of the door lock apparatus by a control signal transmitted to the wireless communication;
A door security management server including a data storage unit for generating and transmitting a disposable password to the lock control unit and the wireless terminal and storing lock and unlock related information of the door lock device;
And a communication unit for transmitting authentication information, door lock control information, and one-time password transmission information between the door lock unit, the near field wireless communication unit, the door security management server, and the wireless terminal
Smart door lock system.

A Bluetooth beacon, a security management server, a door lock system, and is capable of communicating with an external wireless terminal,
Registering user information and beacon information in the security management server and the wireless terminal,
When the user carrying the wireless terminal approaches the door lock system, the registered user is identified through the Bluetooth beacon,
If the user is a registered user, the security management server transmits the disposable password to the wireless terminal and the door lock system,
And when the user enters the disposable password into the door lock system, operating the door lock apparatus to release the locked state
How smart door lock system works.

3. The method of claim 2,
After the registered user is identified through the Bluetooth beacon, if it is a registered user,
Executing an application capable of receiving a disposable password to the wireless terminal,
The user enters a pre-designated application execution password,
And when the application execution password is matched, the security management server generates a disposable password.
How smart door lock system works.

3. The method of claim 2,
The door lock system may, at the user's option,
A first mode for operating the digital door lock with a password designated by the user,
And a second mode in which the digital door lock is operated by generating a digital one-time password through the security management server
How smart door lock system works.