KR20230153712A - Method And System for Opening and Closing a Door Lock by Using Door Lock Patch - Google Patents

Abstract

Disclosed is a method and system for opening and closing a door lock using a door lock patch.
In this embodiment, a door lock patch is attached to a door lock with an NFC function, and when the door lock patch communicates (UWB, BLE) with a user terminal that has entered the threshold range and authenticates a pre-registered user, separate tagging is performed. We provide a door lock opening and closing method and system using a door lock patch that enables hands-free access service without physically replacing the existing door lock by automatically opening and closing the door lock.

Description

Door lock opening and closing method and system using a door lock patch {Method And System for Opening and Closing a Door Lock by Using Door Lock Patch}

One embodiment of the present invention relates to a method and system for opening and closing a door lock using a door lock patch.

The content described below simply provides background information related to this embodiment and does not constitute prior art.

In the conventional access control method, doors were opened and closed using magnetic-based cards.

Recently, due to the development of communication technology, in order to manage access to buildings, specific areas, etc., technology has been used in which an access control device acquires information pre-stored in a user terminal and determines whether the door is open to manage access. In particular, access is managed using terminals that support various communication methods, including Bluetooth and RFID (Radio Frequency IDentification).

However, in the case of old buildings (particularly hotels), magnetic-based access control methods are most often used. In order to manage access by supporting Bluetooth and RFID communication methods in old buildings, there is a problem that all physically installed magnetic-based access control devices must be replaced with new devices.

When replacing all previously installed magnetic-based access control devices with new devices, there is a problem that a lot of time and money are incurred.

In this embodiment, a door lock patch is attached to a door lock with an NFC function, and when the door lock patch communicates (UWB, BLE) with a user terminal that has entered the threshold range and authenticates a pre-registered user, separate tagging is performed. The purpose is to provide a door lock opening and closing method and system using a door lock patch that allows the door lock to be opened and closed automatically, enabling a Hands Free Access service without physically replacing the existing door lock.

According to one aspect of the present embodiment, a user terminal transmits a pre-stored key value to a device within a pre-set threshold range using a pre-installed door lock control application; A door lock patch that transmits an NFC signal when a pre-registered user is authenticated by performing communication with the user terminal that has entered within a preset threshold range; Upon receiving the NFC signal, a door lock that automatically opens the door lock without separate tagging is provided.

As described above, according to this embodiment, a door lock patch is attached to a door lock with an NFC function, and the door lock patch performs communication (UWB, BLE) with a user terminal within the threshold range to authenticate a pre-registered user. , It has the effect of enabling the door lock to open and close automatically without separate tagging, enabling a Hands Free Access service without physically replacing the existing door lock.

According to this embodiment, the door lock patch can be expanded to systems that utilize existing NFC, such as apartment common entrances and food waste disposers.

Figure 1 is a diagram showing a door lock opening and closing system using UWB according to this embodiment.
Figure 2 is a diagram showing a door lock patch according to this embodiment.
Figure 3 is a diagram showing the opening and closing of a door lock using a door lock patch according to this embodiment.
Figure 4 is a diagram showing NFC settings of a user terminal according to this embodiment.
Figure 5 is a diagram showing the communication process between the user terminal and the door lock patch according to this embodiment.
Figure 6 is a diagram showing an example for coupling the door lock patch according to this embodiment to the door lock.
Figure 7 is a diagram showing NFC tag registration on a user terminal according to this embodiment.
Figure 8 is a diagram showing an example of a door lock patch applied to a door lock according to this embodiment.
Figure 9 is a diagram showing a communication method according to UWB support of a user terminal according to this embodiment.
Figure 10 is a diagram showing the hardware configuration of the door lock patch according to this embodiment.
Figure 11 is a diagram showing the operation of the user terminal depending on the presence or absence of a security element according to this embodiment.

Hereinafter, this embodiment will be described in detail with reference to the attached drawings.

Figure 1 is a diagram showing a door lock opening and closing system using UWB according to this embodiment.

The door lock opening and closing system using UWB according to this embodiment includes a user terminal 110, a door lock patch 120, and a door lock 130. The components included in the door lock opening and closing system using UWB are not necessarily limited to this.

The user terminal 110 refers to an electronic device that performs voice or data communication via a network according to the user's key operations. The user terminal 110 communicates with the door lock patch 120 using UWB and BLE.

The user terminal 110 is equipped with a memory for storing a program or protocol for communicating with the door lock patch 120, a microprocessor for calculating and controlling the program by executing it.

The user terminal 110 includes a smart phone, tablet, laptop, personal computer (PC), personal digital assistant (PDA), and portable multimedia player (PMP). It may be an electronic device such as a multimedia player, a wireless communication terminal, or a media player.

The user terminal 110 is equipped with a variety of devices including communication devices such as a communication modem for communicating with various devices or wired and wireless networks, memory for storing various programs and data, and a microprocessor for calculating and controlling programs by executing them. It is a device. According to at least one embodiment, the memory is computer memory such as random access memory (RAM), read only memory (ROM), flash memory, optical disk, magnetic disk, and solid state disk (SSD). It may be a readable recording/storage medium. According to at least one embodiment, a microprocessor may be programmed to selectively perform one or more of the operations and functions described in the specification. According to at least one embodiment, a microprocessor may be implemented in whole or in part as hardware such as an application specific integrated circuit (ASIC) of a specific configuration.

The user terminal 110 is equipped with the door lock control application 112 and communicates with the door lock patch 120. If the user terminal 110 does not support UWB, it can support UWB when combined with a case or accessory.

The user terminal 110 internally stores the key value for the NFC tag for entry and exit. The user terminal 110 can store the key value for the NFC tag for internal entry as fixed information or as a separate ID for each user.

The door lock patch 120 is preferably installed 1.5 m in front of the door while attached to the door lock 130. The door lock patch 120 can communicate with the user terminal 110 via BLE from a distance of at least 5 m. The door lock patch 120 can communicate with the user terminal 110 via UWB from a distance of at least 3 m.

The door lock patch 120 is attached to the door lock 130 with an NFC function and performs UWB communication with the user terminal 110 that has entered the threshold range to authenticate a pre-registered user, thereby locking the door without separate tagging (Tagging). 130) opens and closes automatically.

The door lock patch 120 is attached to the door lock 130 that supports NFC to provide a hands-free access service without replacing the door lock 130. The door lock patch 120 receives power through a battery method rather than an RF signal harvest method. The door lock patch (120) can be expanded to systems that utilize existing NFC, such as apartment common entrances and food waste disposers.

The door lock patch 120 uses UWB to check whether the user terminal 110 enters within a preset threshold range and performs authentication, regardless of the control of the door lock 130. The door lock patch 120 performs non-contact authentication using UWB and at the same time performs NFC function by additionally using a separate interface.

When the door lock patch 120 is connected to the door lock 130, it connects the NFC interface. The door lock patch 120 can be connected to the door lock 130 in the form of a patch or cable. The door lock patch 120 is linked to the door lock 130 that supports NFC using a separate interface.

The door lock patch 120 prevents the NFC function from operating normally and operates the NFC function only when the user terminal 110 is authenticated using UWB.

The door lock patch 120 uses an internal UWB antenna to check whether the user terminal 110 enters within a preset threshold range. The door lock patch 120 switches power to read the ID value (identification information) previously stored in the internal IC chip (NFC tag) and performs authentication for the user terminal 110. The door lock patch 120 recognizes the user terminal 110 as authenticated when the ID value (identification information) previously stored in the internal IC chip (NFC tag) matches the identification information received from the user terminal 110. . When the door lock patch 120 recognizes that the user terminal 110 is authenticated, it generates induced electromotive force in the NFC coupling antenna inside and transmits authentication information to the door lock 130, allowing the door lock 130 to be opened and closed.

The door lock patch 120 physically blocks the power applied to the internal NFC module and operates in a disabled state. When authentication of the user terminal 110 is completed, power is applied to the internal NFC module. Switch to enabled state.

The door lock patch 120 basically includes a BLE antenna, UWB antenna, and NFC coupling antenna. Since the door lock patch 120 operates in an off state by default, it does not read the pre-stored ID value (identification information) from the internal IC chip (NFC tag). The door lock patch 120 is turned on using the provided switch. The door lock patch 120 turns on only when the conditions are met and reads the previously stored ID value (identification information) from the internal IC chip (NFC tag).

The door lock patch 120 stores the ID value (identification information) authorized for entry in the internal IC chip (NFC tag). The door lock patch 120 controls NFC using an internal IC chip (NFC tag). The door lock patch 120 uses UWB to recognize the user terminal 110 that enters a preset threshold range and reads the ID value stored in the internal IC chip (NFC tag).

The door lock patch 120 reads the ID value (identification information) from the NFC tag and then performs authentication by comparing it with the identification information received from the user terminal 110. The door lock patch 120 performs the same role as tagging when the user terminal 110 enters the critical range where the door lock 130 is installed.

The door lock patch 120 is a trigger that operates the NFC function and communicates with the user terminal 110 using UWB.

When the user terminal 110 authenticates using UWB, the door lock patch 120 verifies the authentication of the user terminal 110 using the MCU. The door lock patch 120 uses the MCU to activate the turned-off NFC module and read the ID value (identification information) previously stored in the internal IC chip (NFC tag). The door lock patch 120 reads the ID value from the NFC tag using the NFC interface.

The door lock patch 120 can directly control the opening and closing of the door lock 130, control it separately from the door lock 130, or control opening and closing together with the door lock 130 in a hybrid method. The door lock patch 120 provides an authentication means for the user terminal 110 to the door lock 130 using UWB. The door lock patch 120 may be mounted within the door lock 130 or may be fastened separately as a stand-alone product. If the door lock patch 120 is implemented as a stand-alone product, it can be connected to the NFC module of the door lock 130 in the form of an accessory.

The door lock patch 120 performs cabling with the door lock 130 while simply mounting an antenna in terms of hardware. The door lock patch 120 and the door lock 130 perform two-way communication to open and close the door based on NFC. The door lock patch 120 is equipped with a security module to prevent hacking of the NFC ID value uniquely assigned to each device.

The door lock patch 120 can store multiple ID values in an internal IC chip (NFC tag).

The door lock patch 120 can enable additional authentication when an NFC tag (card) is additionally tagged while the user terminal 110 is authenticated using UWB. For example, in the case of a security facility, the door lock patch 120 first authenticates the user terminal 110 using UWB and secondarily physically tags the user terminal 110 with an NFC tag (card). Perform authentication to allow the door to open and close. The door lock patch 120 may receive power from the door lock 130 or may have a built-in internal battery.

The door lock 130 opens and closes the door when the user terminal 110 is authenticated in conjunction with the door lock patch 120. The door lock 130 is equipped with an NFC reader. The door lock 130 receives an NFC signal from the door lock patch 120 using an NFC reader and determines whether to open or close the door.

The door lock 130 opens and closes the door by recognizing the password entered on the keypad, recognizing the input fingerprint, or recognizing the input NFC card. The door lock 130 is combined with a door lock patch 120 having a thin middle border in the form of an accessory. The door lock 130 and the door lock patch 120 can be fastened to each other in a mechanical structure or in a sticker-type attachment structure.

The door lock 130 is generally implemented in various forms with a keypad. The door lock patch 120 can be implemented with a variable structure depending on the various shapes of the door lock 130, attached externally, or mounted internally (equipped with a battery).

The door lock 130 works in conjunction with the door lock patch 120 to check whether the user terminal 110 enters within a preset threshold range. The door lock 130 receives a key value from the user terminal 110 when it is confirmed that the user terminal 110 enters within a preset threshold range in conjunction with the door lock patch 120. The door lock patch 120 authenticates the user terminal 110 by comparing the ID value previously registered in the NFC tag with the ID value received from the user terminal 110.

Figure 2 is a diagram showing a door lock patch according to this embodiment.

The door lock patch 120 according to this embodiment includes a UWB antenna, UWB module, BLE antenna, BLE module, NFC tag, NFC coupling antenna, NFC tag antenna, NFC module, switch, IR sensor, buzzer, hall sensor, button, Includes LED, MCU (Main Control Unit), and battery. Components included in the door lock patch 120 are not necessarily limited to this.

Each component included in the door lock patch 120 is connected to a communication path connecting software modules or hardware modules within the device and can operate organically with each other. These components communicate using one or more communication buses or signal lines.

Each component of the door lock patch 120 shown in FIG. 2 refers to a unit that processes at least one function or operation, and may be implemented as a software module, a hardware module, or a combination of software and hardware.

The UWB antenna performs UWB communication with the user terminal 110 and receives a key value from the user terminal 110. The UWB module controls the transmission and reception of data through UWB by controlling the UWB antenna.

The BLE antenna performs BLE communication with the user terminal 110. The BLE module controls the transmission and reception of data via BLE by controlling the BLE antenna.

NFC tags already store ID values for entry and exit. The NFC coupling antenna applies induced electromotive force and transmits the ID value already stored in the NFC tag. The NFC tag antenna performs NFC communication with the door lock 130 and transmits an NFC signal to the door lock.

NFC tags store NFC information ID within the IC chip. When the user terminal 110 enters the threshold range, the NFC tag receives power from the switch and transmits the NFC ID within the IC chip.

The NFC module controls the transmission and reception of data via NFC by controlling the NFC antenna. The NFC module operates in combination with a security module (SE: Secure Element).

When the NFC module is combined with the security module (SE) and communicates with the NFC reader of the door lock 130, data confirmed to have no security problems is transmitted to the MCU using the security module (SE). When the NFC module communicates with the NFC reader of the door lock 130 without going through the security module, the data received from the NFC reader is directly transmitted to the MCU. When the NFC module is combined with the security module (SE) and communicates with the NFC reader of the door lock 130, data confirmed to have no security issues is transmitted to the MCU using the security module (SE), and at the same time, the data is transmitted from the NFC reader to the MCU. The received data is directly transmitted to the MCU.

The switch switches to apply power to the NFC module when it is confirmed that the user terminal 110 has entered within a preset threshold range through UWB communication.

The IR sensor detects the approach of the user terminal 110. Preferably, one IR sensor is implemented. The IR sensor detects the approach of the user terminal 110. IR sensor can be used as a BLE activator.

The buzzer outputs a theft alarm sound or other alarm. One buzzer is preferably implemented as a built-in speaker. The buzzer outputs theft notification and other alarms. Preferably, one Hall sensor is implemented. Hall sensors prevent hacking and theft. Preferably, one button is implemented. The button operates the matched preset function.

The LED outputs the operating status color. The LED is preferably implemented as one three-color LED. The LED outputs the operating status color of the door lock patch. The LED outputs a RED BLINK as a notification of battery replacement time. The LED outputs BLUE color when the BLE connection is completed (BLE Connected). The LED outputs green color when UWB connection is completed (UWB Connected). The LED outputs a red color when the key value is completely received from the user terminal 110 (KEY Received).

The MCU controls the UWB module, BLE module, NFC module, switch, IR sensor, buzzer, hall sensor, and LED.

When the MCU confirms whether the user terminal 110 has entered within a preset threshold range using the UWB antenna, it receives a key value from the user terminal 110 using the UWB antenna. The MCU switches power using a switch to read the ID value (identification information) previously stored in the NFC tag, then compares the key value and the ID value to perform authentication for the user terminal 110. If the ID value pre-stored in the NFC tag matches the key value received from the user terminal 110, the MCU recognizes that the user terminal 110 is authenticated. The MCU generates induced electromotive force in the NFC coupling antenna and transmits an NFC signal to the door lock 130, causing the door lock 130 to open and close.

The MCU operates in a disabled state by blocking the power supplied to the NFC module in the default state, and when the user terminal 110 that has entered within the preset threshold range using the UWB antenna is recognized, the MCU switches on. Controls the power to the NFC module and switches it to the enabled state.

Since the MCU operates in the off state by default, it does not read the pre-stored ID value from the NFC tag. When the switch is switched on, the pre-stored ID value is read from the NFC tag.

The battery supplies stored power to the internal module.

Figure 3 is a diagram showing the opening and closing of a door lock using a door lock patch according to this embodiment.

The conditions for the door lock patch 120 to recognize the user terminal 110 using UWB to open and close the door lock are as follows.

The user terminal 110 downloads and installs the door lock control application 112. The user terminal 110 operates with BLE turned on. The NFC tag (card) registered in the user terminal 110 must be already registered in the door lock 130 in use. The user terminal 110 registers a key for the NFC tag (card) to be used using the door lock control application 112. It can be used repeatedly by touching the sub door lock using the NFC key registered in the door lock control application 112. The user terminal 110 can register one NFC key to one door lock patch 120. The user terminal 110 stores a secure key value in an application within the terminal without a separate authentication server.

The operating conditions when the same person uses two or more sub-door locks are as follows. For example, when a user installs a sub-door lock at home and in the office, since the door lock patches 120 attached to the door locks installed at home and the office are different from each other, one user terminal 110 is installed for each door lock patch 120. You must register the NFC key. The user terminal 110 performs BLE communication with the door lock patch 120 to recognize the corresponding door lock. The user terminal 110 transmits the key value corresponding to the connected door lock 130 to the door lock patch 120.

The user terminal 110 uses the pre-installed door lock control application 112 to transmit the pre-stored key value to the door lock patch 120 to devices within a preset threshold range.

When the door lock control application 112 is executed, the user terminal 110 sets the NFC mode to ON in the NFC setting state and then sets it to the default mode. The user terminal 110 uses the door lock control application 112 to find the door lock patch 120 and then registers the door lock patch 120 using BLE pairing. The user terminal 110 obtains the key value for the physical NFC tag corresponding to the registered door lock patch 120 using the NFC method using the door lock control application 112 and then matches and registers it with the door lock patch 120. .

When registering two or more door lock patches using the door lock control application 112, the user terminal 110 recognizes the door lock by performing BLE communication for each of the two or more door lock patches, and sets one door lock for each of the two or more door lock patches. Register key values.

The door lock patch 120 communicates with the user terminal 110 that has entered within a preset threshold range, and when a pre-registered user is authenticated, it transmits an NFC signal to the door lock 130. The door lock patch 120 is combined with the door lock 130 in the form of a patch, accessory, or external case to communicate with the user terminal 110 and BLE (Bluetooth Low Energy) and UWB (Ultra-Wide Band). ) Perform communication.

The door lock patch 120 receives a key value from the user terminal 110 that enters within a preset threshold range using UWB. The door lock patch 120 reads the ID value stored in the internal NFC tag. The door lock patch 120 performs authentication for the user terminal 110 by comparing the key value and the ID value. The door lock patch 120 recognizes that when the user terminal 110 is authenticated as performing tagging, it transmits an NFC signal to the NFC reader of the door lock 130.

The door lock patch 120 primarily performs BLE communication with the user terminal 110 using a BLE antenna when the user terminal 110 enters within a preset first threshold distance (eg, 10 to 15 m). The door lock patch 120 performs BLE communication to primarily recognize the approach of the user terminal 110. When the user terminal 110 enters within a preset second threshold distance (eg, 6 to 7 m), the door lock patch 120 secondarily performs UWB communication with the user terminal 110 using a UWB antenna. The door lock patch 120 secondarily receives the key value from the user terminal 110 using UWB communication.

The door lock patch 120 transmits an advertising packet to the user terminal 110. The door lock patch 120 receives a connection request packet (CONNET_REQ) from the user terminal 110. The door lock patch 120 recognizes the user terminal 110 and then completes the connection with the user terminal 110. The door lock patch 120 transmits service data to the user terminal 110. When there is a request to discover characteristics from the user terminal 110, the door lock patch 120 transmits characteristic data to the user terminal 110. The door lock patch 120 performs a data transaction with the user terminal 110. When the user terminal 110 enters within a preset threshold range, the door lock patch 120 requests a key value from the user terminal 110 using UWB. The door lock patch 120 receives a key value from the user terminal 110 using UWB.

When the door lock 130 receives an NFC signal from the door lock patch 120, the door lock is automatically opened without separate tagging. The door lock 130 determines whether to open or close the door by receiving an NFC signal from the door lock patch 120 in a non-contact manner using the provided NFC reader.

When the door lock 130 is installed in a secure facility, when an NFC signal is received from the door lock patch 120 in a non-contact manner using a primarily provided NFC reader, the user terminal 110 is recognized as being authenticated. When the door lock 130 is installed in a secure facility, the door is opened and closed when secondarily tagged with an NFC tag (card).

Figure 4 is a diagram showing NFC settings of a user terminal according to this embodiment.

The user terminal 110 registers the user NFC tag using the door lock control application 112.

The user terminal 110 downloads and executes the door lock control application 112. When the door lock control application 112 is executed, the user terminal 110 sets the NFC mode to ON in the NFC setting state and then sets it to the default mode.

The user terminal 110 registers the door lock patch 120 using the door lock control application 112. The user terminal 110 selects Find Device on the menu while running the door lock control application 112, finds the door lock patch 120, and registers it through BLE pairing.

Figure 5 is a diagram showing the communication process between the user terminal and the door lock patch according to this embodiment.

The door lock patch 120 transmits an advertising packet to the user terminal 110 (AVD_IND).

The door lock patch 120 periodically or aperiodically transmits an advertising packet to the door lock patch 120. The user terminal 110 periodically or aperiodically scans the Bluetooth communication frequency band before the door lock patch 120 transmits the advertising packet. The door lock patch 120 transmits an advertising packet to the user terminal 110 in response to the scan operation of the user terminal 110. The user terminal 110 receives the advertising packet transmitted by the door lock patch 120.

The user terminal 110 receives an advertising packet from the door lock patch 120. The user terminal 110 transmits a connection request packet to the door lock patch 120 (CONNET_REQ).

The user terminal 110 and the door lock patch 120 acknowledge or recognize each other (Acknowledgement). The door lock patch 120 receives a connection request packet from the user terminal 110, and mutual recognition is completed between the door lock patch 120 and the user terminal 110.

The connection between the user terminal 110 and the door lock patch 120 is completed (Connection complete). When the user terminal 110 and the door lock patch 120 complete recognition of each other, connection to each other may be completed.

The user terminal 110 discovers services of the door lock patch 120. The door lock patch 120 transmits service data to the user terminal 110 (Service Data (GATT)). The door lock patch 120 transmits service data to the user terminal 110 in response to the packet.

The user terminal 110 discovers the characteristics of the door lock patch 120 (Discover Characteristics). The user terminal 110 receives service data from the door lock patch 120 and then transmits a packet for characteristic search to the door lock patch 120.

The door lock patch 120 transmits characteristic data (Characteristic data (GATT)) to the user terminal 110. The door lock patch 120 transmits characteristic data to the user terminal 110 in response to the packet.

Data is exchanged between the user terminal 110 and the door lock patch 120 (Data transaction). As the user terminal 110 receives characteristic data from the door lock patch 120, data is exchanged between the user terminal 110 and the door lock patch 120.

When the user terminal 110 enters within a preset threshold range, the door lock patch 120 requests identification information from the user terminal 110 using UWB. The door lock patch 120 receives a key value from the user terminal 110 using UWB (response). The door lock patch 120 authenticates the user terminal 110 by comparing the ID value already registered in the NFC tag with the key value received from the user terminal 110.

Figure 6 is a diagram showing an example for coupling the door lock patch according to this embodiment to the door lock.

As shown in FIG. 6, the door lock patch 120 can be fastened to the door lock 130 while being combined with the door lock rain prevention rain cover 400. The door lock patch 120 can be mounted on one side of the outer case of the door lock rain prevention rain cover 400.

When the door lock 130 is installed outside, the door lock rainwater prevention rain cover 400 may be fastened to the outside in the form of a case to prevent rainwater. The door lock rain prevention rain cover 400 can be modified according to various shapes of the door lock 130.

Figure 7 is a diagram showing NFC tag registration on a user terminal according to this embodiment.

The user terminal 110 registers a user NFC tag using the door lock control application 112. The NFC tag is held within a preset distance on the screen of (a) shown in FIG. 7 and the corresponding key value is registered in the door lock control application 112. When registration using the door lock control application 112 is completed, the user terminal 110 outputs the registration status as shown in (b).

The user terminal 110 registers the NFC tag (card) in use using the door lock control application 112. Here, the user terminal 110 registers only one NFC tag to one user terminal 110.

If different NFC tags are used at home and at work, since the door lock patches 120 are different from each other, one ID must be registered in the user terminal 110 for each door lock patch 120 and then the door lock patch 120. The key value is transmitted while communicating with BLE.

In order for the user terminal 110 to communicate with the door lock patch 120, BLE must be turned on at all times. The user terminal 110 must have the same tag registered in the door lock 130 as the pre-registered tag. The user terminal 110 can also use NFC tags registered in the door lock control application 112 in duplicate.

Figure 8 is a diagram showing an example of a door lock patch applied to a door lock according to this embodiment.

When the door lock patch 120 is fastened to the door lock 130, as shown in (a) of FIG. 8, the door lock patch 120 is attached to the bottom of the door lock 130 according to the tagging position of the NFC tag (card) of the door lock 130. It is possible to conclude.

When the door lock patch 120 is fastened to the door lock 130, as shown in (b) of FIG. 8, the door lock patch 120 is attached to the top of the door lock 130 according to the tagging position of the NFC tag (card) of the door lock 130. It is possible to conclude.

Figure 9 is a diagram showing a communication method according to UWB support of a user terminal according to this embodiment.

When the user terminal 110 is a terminal that supports BLE and UWB, when it enters the first critical range (10 to 15 m), communication is performed with the door lock patch 120 through BLE. When the user terminal 110 is a terminal that supports BLE and UWB, when it enters the second critical range (6 to 7 m), communication is performed with the door lock patch 120 through UWB.

When the user terminal 110 enters the second critical range (6 to 7 m), the door lock patch 120 receives a key value (identification information) through UWB communication with the user terminal 110. When the key value (identification information) received from the user terminal 110 is authenticated, the door lock patch 120 transmits an NFC signal to the door lock 130 to open and close the door lock 130.

If the user terminal 110 is a terminal that supports only BLE (not supporting UWB), when it enters the first critical range (10 to 15 m), communication is performed with the door lock patch 120 using BLE. If the user terminal 110 is a terminal that supports only BLE (not supporting UWB) and enters the second critical range (6 to 7 m), communication is performed with the door lock patch 120 using UWB using a UWB support accessory. do.

When the user terminal 110 enters the second critical range (6 to 7 m), the door lock patch 120 receives a key value (identification information) through UWB communication with the user terminal 110. When the key value (identification information) received from the user terminal 110 is authenticated, the door lock patch 120 transmits an NFC signal to the door lock 130 to open and close the door lock 130.

Figure 10 is a diagram showing the hardware configuration of the door lock patch according to this embodiment.

The door lock patch 120 is implemented including an NFC coupling antenna, NFC tag antenna, LED, buzzer, hall sensor, coin cell, holder, NFC tag, BLE module, UWB module, and MCU. The door lock patch 120 is implemented as an NFC coupling antenna and an NFC tag antenna in a folded form, so that the NFC coupling antennas overlap back and forth with respect to the NFC tag antenna.

LED, buzzer, hall sensor, NFC tag, BLE module, UWB module, and MCU are implemented within one PCB. The PCB is additionally combined with a coin cell and holder. The door lock patch 120 may be inserted into a concave-shaped external case.

Figure 11 is a diagram showing the operation of the user terminal depending on the presence or absence of a security element according to this embodiment.

As shown in (a) of FIG. 11, the user terminal 110 communicates with the door lock 130 using NFC card emulation with a security element. When the user terminal 110 communicates with the NFC reader of the door lock 130 using the NFC controller, it additionally verifies security via a secure element. If the user terminal 110 confirms that there is no security problem in the data that has passed through the security element, it transmits the data to the host CPU.

As shown in (b) of FIG. 11, the user terminal 110 communicates with the door lock 130 using NFC card emulation without a security element. When the user terminal 110 communicates with the NFC reader of the door lock 130 using the NFC controller, the data is directly transmitted to the host CPU because there is no secure element.

As shown in (c) of FIG. 11, the user terminal 110 communicates with the door lock 130 using emulation that operates with both a secure element and host card emulation. When the user terminal 110 communicates with the NFC reader of the door lock 130 using the NFC controller, it additionally verifies security via a secure element. If the user terminal 110 confirms that there is no security problem in the data that has passed through the security element, it transmits the data to the host CPU and simultaneously transmits the data directly to the host CPU.

The above description is merely an illustrative explanation of the technical idea of the present embodiment, and those skilled in the art will be able to make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present embodiments are not intended to limit the technical idea of the present embodiment, but rather to explain it, and the scope of the technical idea of the present embodiment is not limited by these examples. The scope of protection of this embodiment should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this embodiment.

110: user terminal
120: Door lock patch
130: door lock

Claims (14)

A user terminal that transmits a pre-stored key value to a device within a pre-set threshold range using a pre-installed door lock control application;
A door lock patch that transmits an NFC signal when a pre-registered user is authenticated by performing communication with the user terminal that has entered within a preset threshold range;
When receiving the NFC signal, a door lock that automatically opens the door without separate tagging;
A door lock opening and closing system comprising a. According to paragraph 1,
The door lock patch is,
A door lock characterized in that it is coupled to the door lock in the form of a patch, accessory, or external case to perform BLE (Bluetooth Low Energy) communication and UWB (Ultra-Wide Band) communication with the user terminal. Opening and closing system. According to paragraph 1,
The door lock patch is
Receiving the key value from the user terminal that enters a preset threshold range using UWB, reading the ID value stored in the internal NFC tag, and then comparing the key value and the ID value to authenticate the user terminal. A door lock opening and closing system characterized in that, when the user terminal is authenticated, it is recognized as performing tagging and the NFC signal is transmitted to the NFC reader of the door lock. According to paragraph 1,
The door lock patch is
a UWB antenna that performs UWB communication with the user terminal and receives the key value from the user terminal;
a UWB module that controls transmission and reception of data through UWB by controlling the UWB antenna;
A BLE antenna that performs BLE communication with the user terminal;
A BLE module that controls transmission and reception of data via BLE by controlling the BLE antenna;
NFC tag that stores ID value for entry and exit;
An NFC coupling antenna that transmits the ID value by applying induced electromotive force;
An NFC tag antenna that performs NFC communication with the door lock and transmits the NFC signal to the door lock;
An NFC module that controls transmission and reception of data via NFC by controlling the NFC antenna;
a switch to apply power to the NFC module when it is confirmed that the user terminal has entered a preset threshold range through the UWB communication;
an IR sensor that detects the approach of the user terminal;
A buzzer that outputs a theft alarm or other alarm;
Hall sensor to prevent hacking and theft;
LED outputs operating status colors;
An MCU (Main Control Unit) that controls the UWB module, the BLE module, the NFC module, the switch, the IR sensor, the buzzer, the Hall sensor, and the LED;
a battery that supplies stored power to internal modules;
A door lock opening and closing system comprising a. According to paragraph 4,
The NFC module is,
When communicating with the NFC reader of the door lock in combination with a security module (SE: Secure Element), data confirmed to have no security issues is transmitted to the MCU using the security module (SE), and the security module When communicating with the NFC reader of the door lock without passing through, the data received from the NFC reader is directly transmitted to the MCU, and when communicating with the NFC reader of the door lock in combination with the security module (SE), the security module ( A door lock opening and closing system characterized by transmitting data confirmed to have no security problems to the MCU using (SE) and simultaneously transmitting data received from the NFC reader directly to the MCU. According to paragraph 1,
The door lock patch is
When the user terminal enters within a preset first threshold distance, BLE communication is primarily performed with the user terminal using a BLE antenna, and the BLE communication is performed to primarily recognize the approach of the user terminal,
When the user terminal enters within a preset second threshold distance, secondarily performs UWB communication with the user terminal using a UWB antenna, and secondarily receives the key value from the user terminal using the UWB communication. A door lock opening and closing system characterized in that. According to paragraph 4,
The MCU is
When it is confirmed whether the user terminal has entered within a preset threshold range using the UWB antenna, the key value is received from the user terminal using the UWB antenna, and power is switched using the switch to transmit the NFC tag. After reading the ID value previously stored in the key value and the ID value, authentication for the user terminal is performed, and the ID value previously stored in the NFC tag matches the key value received from the user terminal. In this case, the user terminal is recognized as authenticated, and an induced electromotive force is generated in the NFC coupling antenna to transmit an NFC signal to the door lock, thereby opening and closing the door lock. According to paragraph 4,
The MCU is
In the default state, the power applied to the NFC module is cut off to operate in a disabled state, and when the user terminal that has entered the preset threshold range using the UWB antenna is recognized, the switch is controlled. A door lock opening and closing system characterized in that it switches to an enabled state by applying power to the NFC module. According to paragraph 4,
The MCU is
A door lock opening and closing system that operates in the off state by default and does not read the pre-stored ID value from the NFC tag, and then reads the pre-stored ID value from the NFC tag when the switch is switched to on. According to paragraph 1,
The door lock is
A door lock opening and closing system characterized in that it determines whether to open or close the door by receiving the NFC signal from the door lock patch in a non-contact manner using a provided NFC reader. According to paragraph 1,
The door lock is,
When installed in a secure facility, when the NFC signal is received from the door lock patch in a non-contact manner using an NFC reader provided, the user terminal is recognized as authenticated, and a physical NFC tag is tagged secondarily. A door lock opening and closing system characterized in that the door is opened and closed in some cases. According to paragraph 1,
The user terminal is
When the door lock control application is executed, set the NFC mode to ON in the NFC setting state and set it to basic mode, find the door lock patch using the door lock control application, and then register the door lock patch through BLE pairing. And, opening and closing the door lock, characterized in that the key value for the physical NFC tag corresponding to the door lock patch registered using the door lock control application is acquired by NFC method and then matched and registered with the door lock patch 120. system. According to paragraph 1,
The user terminal is
When registering two or more door lock patches using the door lock control application, BLE communication is performed for each of the two or more door lock patches to recognize the door lock, and one key value is registered for each of the two or more door lock patches. A door lock opening and closing system characterized in that. According to paragraph 1,
The door lock patch is
Send an Advertising Packet to the user terminal, receive a connection request packet (CONNET_REQ) from the user terminal, recognize the user terminal, and complete the connection with the user terminal (Connection) complete), transmit service data to the user terminal, and when there is a request for Discover Characteristics from the user terminal, transmit characteristic data to the user terminal, and transmit the characteristic data to the user terminal. After performing a data transaction with the user terminal, when the user terminal enters within a preset threshold range, the key value is requested from the user terminal using UWB, and the key value is transmitted from the user terminal using UWB. A door lock opening and closing system characterized by receiving (response) a key value.