WO2021117916A1

WO2021117916A1 - Device and method for automatically opening door lock

Info

Publication number: WO2021117916A1
Application number: PCT/KR2019/017281
Authority: WO
Inventors: 박은민
Original assignee: 주식회사 아마다스
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2021-06-17

Abstract

The present invention relates to technology for automatically opening a door lock, and more particularly, to a device and method for automatically opening a door lock, in which a user can transmit authentication information from a portable terminal to the door lock merely by touching a lever of the door lock, without pairing, thereby automatically unlocking the door lock. To this end, a device for automatically opening a door lock according to the present invention comprises: a Bluetooth communication module that communicates with a portable terminal; a touch sensing unit that senses touches from a user; and a control unit which, when a touch is sensed by the contact detection unit, activates the Bluetooth communication module, transmits an advertising packet through the Bluetooth communication module, receives a response packet, including authentication information, from the portable terminal through the Bluetooth communication module without a Bluetooth communication pairing procedure, and performs user authentication using the authentication information.

Description

Door lock automatic opening device and method

The present invention relates to an automatic opening technology of a door lock, and more particularly, to a door lock that can be automatically unlocked by transmitting authentication information from a mobile terminal to the door lock without pairing simply by touching the lever of the door lock by the user. It relates to an automatic opening device and method.

In the case of mechanical door locks, since it is inconvenient to carry a key, most recently, electrically operated door locks that can open the door by inputting a password or fingerprint are widely used.

An electrically operated door lock is generally composed of a main body that can input a number, an outer lever connected to the main body, and an inner lever, and the main body has a built-in circuit board that can electrically control the lock of the door lock.

Conventional electrically operated door lock performs a simple function of generating an electric signal for unlocking when the input password matches pre-stored information.

In contrast, Patent Registration No. 10-1414773 discloses a technology for controlling the opening and closing of the door lock by comparing the recognition information when the mobile terminal transmits recognition information to the door lock as the pairing between the mobile terminal and the door lock is connected.

When Bluetooth communication is applied between the portable terminal and the door lock, a pairing procedure for data communication is required. Since this pairing procedure is performed through a secure link setting, the pairing procedure may be delayed, so there is a delay when the user opens the door lock using the portable terminal. This can cause discomfort and discomfort.

Moreover, if pairing fails, data communication between the mobile terminal and the door lock is not performed, so that the user cannot open the door for a long time.

In addition, when the user approaches the door lock, automatic pairing is performed between the mobile terminal and the door lock. For this automatic pairing, the Bluetooth communication function is always activated and the door lock has to periodically transmit a signal to an external device, so there is a problem that battery consumption is large. .

The present invention has been devised to solve the above problems, and an object of the present invention is to avoid discomfort due to the delay of the communication procedure between the mobile terminal and the door lock when the user wirelessly opens the door lock using the mobile terminal. .

Another object of the present invention is to reduce battery consumption of a door lock that is automatically opened while communicating wirelessly with a mobile terminal.

To this end, the door lock automatic opening device according to the present invention includes a Bluetooth communication module communicating with a mobile terminal, a touch sensing unit sensing a touch by a user, and the Bluetooth communication module when a touch is detected by the touch sensing unit. Activate to transmit an advertisement packet through the Bluetooth communication module, receive a response packet including authentication information from the mobile terminal through the Bluetooth communication module from the portable terminal without a pairing procedure for Bluetooth communication, and authenticate the user using authentication information It includes a control unit for processing.

The automatic opening method of a door lock according to the present invention is an automatic opening method of a door lock in which a door lock and a mobile terminal communicate according to a Bluetooth protocol and control the locking operation of the door lock, comprising the steps of: transmitting an advertisement packet when the door lock detects a user's touch; , receiving, by the door lock, a response packet including authentication information from the user terminal without a pairing procedure according to the Bluetooth protocol, and when the authentication information included in the response packet matches pre-stored information, the door lock releases the lock includes steps.

The computer readable medium storing the program for executing the automatic opening method of the door lock according to the present invention executes the automatic door lock opening method in the portable terminal which controls the locking operation of the door lock while the door lock and the portable terminal communicate according to the Bluetooth protocol. A computer-readable medium storing a program for the purpose of: decrypting an advertisement packet upon receiving an encrypted advertisement packet from the door lock; generating a response packet based on the decrypted advertisement packet without a pairing request with the door lock; Stores a program for executing the step of encrypting and transmitting.

As described above, according to the present invention, when communication is performed between the outside of the door lock and the portable terminal according to the Bluetooth protocol, signals can be transmitted and received without a pairing procedure, so that a delay caused by the pairing procedure between the portable terminal and the door lock does not occur Therefore, when a user wirelessly opens the door lock using a mobile terminal, there is an effect that the door lock can be opened quickly without a sense of delay.

In addition, according to the present invention, since the Bluetooth communication function is activated only when the user holds the external lever of the door lock, Bluetooth communication is always activated for automatic pairing in the prior art, thereby solving the disadvantage of high battery consumption of the door lock. .

1 is a view showing the exterior of a door lock according to the present invention.

Figure 2 is a view showing a state in which the outside air and the bet of the door lock according to the present invention communicate with the mobile terminal.

Figure 3 is a view showing the internal configuration of the automatic opening device of the door lock according to the present invention.

Figure 4 is a view showing the automatic opening process of the door lock through Bluetooth communication between the bet and the portable terminal of the door lock according to the present invention.

5 is a view showing an automatic opening process of the door lock through Bluetooth communication between the outside and the portable terminal of the door lock according to the present invention.

6 is a view showing the configuration of an advertisement packet transmitted from the door lock according to the present invention.

7 is a view showing the configuration of a response packet transmitted from the mobile terminal to the door lock according to the present invention.

8 is a flowchart showing a process for automatically opening the door lock in the automatic door opening device according to the present invention.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings. The configuration of the present invention and the effects thereof will be clearly understood through the following detailed description.

Prior to the detailed description of the present invention, the same components are denoted by the same reference numerals as possible even if they are shown on different drawings, and the detailed description will be omitted if it is determined that the subject matter of the present invention may be obscured for known components. do.

Figure 1 shows the exterior of a door lock according to the present invention, Figure 2 shows a state that the outside air and the bet of the door lock according to the present invention communicate with the user terminal, Figure 3 is an automatic opening device of the door lock according to the present invention It shows the internal configuration.

1 and 2, the door lock is composed of an outdoor air 10 installed on the outside of the door and a bet 20 installed on the inside of the door, and an external lever 100 is installed in the outdoor air 10 and the bet At 20, an internal lever 200 is provided. The external lever 100 is provided with a button array, so that a user can input a password by pressing a number of the button array.

The user may unlock the door lock through the button array of the external lever 100 , but may also unlock the door lock through the portable terminal 30 .

The portable terminal 30 may perform Bluetooth communication with the outside air 10 and the bet 20 of the door lock, respectively. Bluetooth communication between the portable terminal 30 and the bet 20 of the door lock is performed through a general pairing procedure, whereas Bluetooth communication between the portable terminal 30 and the outdoor unit 10 of the door lock is performed without a pairing procedure.

Referring to FIG. 3 , the outdoor air 10 of the door lock includes a first Bluetooth communication module 101 , an input unit 102 , a contact sensing unit 103 , a door lock driving unit 104 , a control unit 105 , etc. 20 includes a second Bluetooth communication module 201, a battery 202, and the like.

The first Bluetooth communication module 101 is a part that performs Bluetooth communication with the portable terminal 30 without a pairing procedure.

The input unit 102 is a part for inputting the password of the door lock, and is configured as a push button as shown in FIG. 1 , but may be configured as a capacitive touch button according to the configuration of the contact sensing unit 103 .

The touch sensing unit 103 is a part for detecting a state in which the user's hand is in contact with the external lever 100 , and may be installed separately from the input unit 102 or may be integrally configured with a touch button of the input unit 102 .

The control unit 104 is a part that controls each component of the door lock. The control unit 104 basically checks whether the password input in the input unit 102 matches the pre-stored password, and if it matches, outputs an open command to the door lock driving unit 105, and when the closing of the door is confirmed, to the door lock driving unit 28 Outputs a close command.

Specific operations of the control unit 104 according to the present invention will be described below, focusing on the contents of the external air 10 and the bet 20 communicating with the portable terminal 30 and signal processing.

The door lock driving unit 105 opens or closes the locking device 500 according to a control command of the control unit 104 . The door lock driving unit 105 releases the locking state of the locking device 50 upon receiving an open command from the control unit 104 , and makes the locking device 50 into a locked state upon receiving a closing command from the control unit 104 .

The second Bluetooth communication module 201 is a part that performs Bluetooth communication with the portable terminal 30 through a pairing procedure.

The battery 202 is a part that supplies power to each part of the door lock. A dry cell or a secondary battery may be used as the battery 202 . Power of the battery 202 according to the present invention is supplied to the outdoor air 10 through the connection structure of the locking device 50 .

4 illustrates a process in which the lock state of the door lock is opened through Bluetooth communication between the bet 20 of the door lock and the portable terminal 30 .

Basically, when the mobile terminal 30 approaches the door lock, pairing is automatically made between the bet 20 of the door lock and the mobile terminal 30 to enable data communication, and in this state, the mobile terminal 30 is set to the same password as the password. The authentication information is transmitted to the bet 20 to request the door lock to be opened.

For automatic pairing of Bluetooth communication between the portable terminal 30 and the door lock bet 20, the door lock app is installed in the portable terminal 30, and user registration in the door lock must be completed in advance through the door lock app.

When the user runs the door lock app installed on the mobile terminal 30, Bluetooth communication is activated, and when the user approaches the door lock and automatic pairing is established between the mobile terminal 30 and the door lock bet 20, the user can use the door lock app through the door lock app. Authentication information may be transmitted automatically along with pairing without transmitting authentication information or user intervention.

As such, when the authentication information is transmitted from the mobile terminal 30 to the bet 20, the bet 20 proceeds with a procedure to check whether the received authentication information and pre-stored information match, and if the authentication information matches, the lock state of the door lock and if the authentication information does not match, the locked state of the door lock is maintained.

The signal processing process of the bettor 20 and the mobile terminal 30 will be described in detail with reference to FIG. 4 .

First, since the second Bluetooth communication module 201 of the bet 20 of the door lock is activated, an advertisement packet is periodically transmitted from the bet 20 (S11).

When the portable terminal 30 approaches the door lock while the advertisement packet is transmitted from the bet 20, the portable terminal 30 receives the advertisement packet and transmits a response packet to the bet 20 to request pairing. do (S13).

When the bet 20 receives the response packet from the mobile terminal 30, the bet 20 establishes the link security, and then pairing is performed between the bet 20 and the mobile terminal 30 (S15), and after pairing, the mobile terminal At 30, authentication information can be transmitted to the bet 20 (S17).

When the bettor 20 receives the authentication information from the portable terminal 30, the user authentication procedure is compared with the pre-stored information (S19), and determines whether the lock state of the door lock is released.

For convenience of description, the process shown in FIG. 4 has been described as being processed by the bet 20 , but this signal processing process is performed by the controller 104 of the outdoor air 10 .

That is, the control unit 104 controls the pairing procedure between the second Bluetooth communication module 201 and the portable terminal 20 and compares the authentication information received from the portable terminal 20 with pre-stored information of the door lock driving unit 105 . control the action.

5 illustrates a process in which the lock state of the door lock is opened through Bluetooth communication between the outdoor air 10 of the door lock and the portable terminal 30 .

Referring to FIG. 5 , when the user first holds the external lever 100 of the outdoor air 10 in order to open the door, the outdoor air 10 detects the user's touch.

The user's touch may be recognized when the user simply holds the external lever 100 with his/her hand, but may be recognized when the user touches the button layer portion of the external lever 100 with his/her hand. . That is, the user's touch may be sensed only when the external lever 100 continuously senses the touch.

As such, when the user's touch is sensed (S30), the first Bluetooth communication module 101 of the outdoor unit 10 is activated, and the outdoor unit 10 encrypts the advertisement packet (S32), and transmits the encrypted advertisement packet ( S34).

As shown in FIG. 6 , the advertisement packet includes a company ID, a device type, a random number, and an external address (Outer MAC).

The random number is generated by a random number generator (not shown) when the first Bluetooth communication module 101 is activated, and the external address is the MAC address of the first Bluetooth communication module 101 .

Here, the random number and the external address are encrypted. Specifically, the external address may be self-encrypted (primary encryption), and the self-encrypted external address may be encrypted (secondary encryption) together with a random number using the AES-128 method.

When the portable terminal 30 receives the advertisement packet based on the company ID and device type included in the advertisement packet, the portable terminal 30 first decrypts the advertisement packet in the AES-128 method to obtain random numbers and self-encrypted external air. The advertisement packet is decoded through the process of extracting the address and then secondarily self-decrypting to extract the external address (S36)

When the decryption is completed, as shown in FIG. 7 , the mobile terminal 30 generates a response packet consisting of a company ID, a device type, a random number, a current time (Time), a user ID (ID Index), and an external address, and encrypts it. to (S38), and transmits the encrypted response packet to the outside air (10) (S40). Here, the random number, current time, user ID, and external address are encrypted. Specifically, the current time, user ID, and external address may be self-encrypted, and the self-encrypted current time, user ID, and external address may be encrypted together with a random number using an AES-128 method or the like.

When the outdoor air 10 of the door lock receives a response packet based on the company ID and device type, the outdoor air 10 first decrypts the response packet in the AES-128 method to obtain a random number and self-encrypted current time, user ID and Decryption of the response packet is performed through the process of extracting the external address and then secondary self-decrypting to extract the current time, user ID, and external address (S42)

When the decryption is completed, the outdoor unit 10 proceeds with a user authentication procedure to check a random number, a user ID, and an external air address (S44) to release the lock state of the door lock when the information matches.

Similarly, for convenience of explanation, the process shown in FIG. 5 has been described as being processed by the outdoor air 10 , but this signal processing process is performed by the controller 104 of the outdoor air 10 .

That is, the control unit 104 controls the communication procedure without pairing between the first Bluetooth communication module 201 and the portable terminal 20 , and pre-stores authentication information (user ID) in the response packet received from the portable terminal 20 . The information is compared to control the operation of the door lock driving unit 105 .

8 is a view showing a process for automatically opening the door lock in the automatic door opening device according to the present invention.

First, the user can set the communication mode between the door lock and the portable terminal 30 through the input unit 102 of the outdoor unit 10 or a separate switch (not shown) or through the door lock app installed in the portable terminal 30 .

The first communication mode is Bluetooth communication between the external unit 10 and the portable terminal 30, and a communication procedure is performed without pairing. When the first communication mode is set in the door lock, the automatic opening process of the door lock is performed as shown in FIG. 5 .

The second communication mode is Bluetooth communication between the bettor 20 and the mobile terminal 30, and a communication procedure is performed through pairing. When the second communication mode is set in the door lock, the automatic opening process of the door lock is performed as shown in FIG. 4 .

Referring to FIG. 8 , the control unit 104 of the outdoor air 10 checks which communication mode is set in the door lock (S100).

In the first communication mode, the control unit 104 deactivates both the first Bluetooth communication module 101 and the second Bluetooth communication module 201 . Thereafter, the control unit 104 checks whether a touch is detected through the touch sensing unit 103 ( S102 ).

When a touch signal is received through the touch sensing unit 103 , the control unit 104 activates the first Bluetooth communication module 101 ( S104 ) and transmits an advertisement packet through the first Bluetooth communication module 101 ( S106 ). ). At this time, the control unit 104 encrypts the advertisement packet and transmits it.

Then, the control unit 104 checks whether a response packet is received (S108), and when the response packet is received, performs an authentication procedure using authentication information in the response packet (S112). When the authentication procedure is completed, the control unit 104 deactivates the first Bluetooth communication module 101 again (S114).

If a response packet is not received, it is checked whether a predetermined time has elapsed (S110), and if the predetermined time has not yet elapsed, the process returns to the advertisement packet sending step (S106), and when a predetermined time has elapsed, the first Bluetooth communication module 101 to deactivate (S114).

In the second communication mode, the control unit 104 puts the first Bluetooth communication module 101 in an inactive state, activates the second Bluetooth communication module 201, and then transmits an advertisement packet at regular intervals (S120).

While transmitting the advertisement packet at regular intervals, the control unit 104 checks whether a response packet is received from the mobile terminal 30 (S122), and if the response packet is received, the control unit 104 sets the link security according to the Bluetooth standard. to perform a pairing procedure between the second Bluetooth communication module 201 and the mobile terminal 30 (S124). If the response packet is not received, the process returns to the advertisement packet transmission step S120.

When pairing is made between the second Bluetooth communication module 201 and the portable terminal 30, the control unit 104 receives authentication information from the portable terminal 30 and performs an authentication procedure (S126).

If pairing fails between the second Bluetooth communication module 201 and the mobile terminal 30, the process returns to the advertisement packet transmission step S120 and the above process is repeated.

The above description is merely illustrative of the present invention, and various modifications may be made by those of ordinary skill in the art to which the present invention pertains without departing from the technical spirit of the present invention.

Therefore, the embodiments disclosed in the specification of the present invention do not limit the present invention. The scope of the present invention should be interpreted by the following claims, and all technologies within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

The present invention can be applied not only to door locks, but also to various locking devices such as vehicle doors, cabinets, or article storage boxes that need to reduce battery consumption and quickly release the lock without a sense of delay.

Claims

A Bluetooth communication module that communicates with a mobile terminal, and

A touch sensing unit for sensing a user's touch;

When a touch is sensed by the touch sensing unit, the Bluetooth communication module is activated to transmit an advertisement packet through the Bluetooth communication module, and authentication is performed from the portable terminal through the Bluetooth communication module without a pairing procedure of Bluetooth communication. An automatic opening device of a door lock comprising a control unit for receiving a response packet containing information and processing user authentication using authentication information.
According to claim 1,

The advertisement packet includes a company ID, a device type, a random number, and a MAC address, and the random number and the MAC address are encrypted.
According to claim 1,

The response packet includes a company ID, a device type, a random number, a current time, a user ID, and a MAC address, and the random number, the current time, the user ID and the MAC address are encrypted.
In the automatic opening method of a door lock for controlling the locking operation of the door lock while the door lock and the mobile terminal communicate according to the Bluetooth protocol,

transmitting an advertisement packet when the door lock detects a user's touch;

receiving, by the door lock, a response packet including authentication information from the user terminal without a pairing procedure according to the Bluetooth protocol;

and unlocking the door lock when the authentication information included in the response packet matches pre-stored information.
A computer readable medium storing a program for executing a method of automatically opening a door lock in a portable terminal for controlling the lock operation of the door lock while the door lock and the portable terminal communicate according to the Bluetooth protocol,

Decrypting the advertisement packet upon receiving the encrypted advertisement packet from the door lock;

A computer-readable recording medium storing a program for generating a response packet based on the decrypted advertisement packet without a pairing request with the door lock and executing the step of encrypting and transmitting the response packet.