Key Table Smart Doorlock and Automatic Access Control System

Abstract

In one embodiment, the present invention provides a smart door lock comprising: a short-range communication module; a processor connected to the short-range communication module; a storage unit connected to the processor; and a door lock connected to the processor, wherein the storage unit includes a program storage unit storing a program for controlling the processor and a key table storage unit storing a preset key table, and the processor compares a key received through the short-range communication module with a key in the key table, and unlocks the door lock when the received key matches a key in the key table.

Description

Technology Field

[0001] The present invention relates to a key table smart door lock and an automatic check-in system, and specifically to a smart door lock and an automatic check-in system that uses Bluetooth and a key table to enhance security. Background Technology

[0002] Generally, unlike manned accommodation facilities, conventional unmanned accommodation management systems configured in unmanned accommodation facilities allow check-in by inserting the fee into an unmanned payment machine installed in each room without a card key or key, and when entering the room, the door lock operates automatically and the door closes.

[0003] In addition, to exit the room, guests are required to explicitly select whether to check out or go out via a switch located inside the room. If checkout is selected, the process is completed, and subsequent management tasks, such as room cleaning, are carried out through the unmanned accommodation management system.

[0004] Meanwhile, if you choose to go out, upon re-entering (returning from outing), you can contact the information desk via intercom to request that the door be opened, or unlock the door lock without a separate authentication process using the return switch located outside the room.

[0005] As a result, existing unmanned accommodation systems have a problem in that they struggle to gain user trust because they cannot guarantee security and safety against theft of personal belongings left in the room when users go out or unauthorized entry by managers.

[0006] To improve this, there is an intention to implement a method that grants users the authority to set door lock passwords in unmanned accommodation systems; however, this approach presents the inconvenience of requiring the administrator to reset the door lock password if the user checks out while the password remains intact, and there is a problem in that supporting the administrator to reset passwords for all rooms itself still cannot guarantee security and safety.

[0007] Therefore, there is a need to develop an alternative that can ensure security and safety by setting the door lock to a password designated by the user during the user's stay, while simultaneously improving the convenience of the manager regarding room management by supporting not only this password setting but also the automatic process of resetting the password set on the door lock upon the user's departure.

[0008] Accordingly, a technology for managing guest rooms through a door lock capable of remote access, as described in Patent Document 1, has been developed. However, power is required for the door lock for remote access, and the door lock is exposed to the risk of being hacked due to the remote access, which results in a problem where security actually deteriorates. Prior art literature

[0009] (Patent Document 0001) KR 10-1763794 A The problem to be solved

[0010] The present invention aims to solve the above problems and provides a key table smart door lock and an automatic access system with enhanced security performance.

[0011] The present invention aims to provide a key table smart door lock and an automatic entry system that are free from short-range communication connection hijacking or sniffing. means of solving the problem

[0012] To achieve the above objectives, the present invention provides the following key table smart door lock and automatic access system.

[0013] In one embodiment, the present invention provides a smart door lock comprising: a short-range communication module; a processor connected to the short-range communication module; a storage unit connected to the processor; and a door lock connected to the processor, wherein the storage unit includes a program storage unit storing a program for controlling the processor and a key table storage unit storing a preset key table, and the processor compares a key received through the short-range communication module with a key in the key table, and unlocks the door lock when the received key matches a key in the key table.

[0014] In one embodiment, the key table includes a number and a number corresponding to the number, and the processor can transmit an ID and the number of the key table through the near-field communication module.

[0015] In one embodiment, the program performs operations through commands, and the operations may include the operation of transmitting a sequence number of the key table through the near-field communication module, the operation of comparing a key received through the near-field communication module with a key of the sequence number of the key table, and the operation of generating an unlock signal transmitted to a door lock when the received key and the key of the sequence number match.

[0016] In one embodiment, the operation may further include changing the sequence number after generating the release signal, and the operation may transmit the ID of the door lock or the near-field communication module together when transmitting the sequence number of the key table.

[0017] In one embodiment, the door lock includes an additional mounting portion that accommodates the short-range communication module, the processor, and the storage portion, and the door lock includes a case that can be opened internally, and the additional mounting portion may be disposed inside the case.

[0018] In one embodiment, the short-range communication module may be a Bluetooth module.

[0019] In one embodiment, the present invention provides an automatic access system comprising: a door lock installed on a door of a facility; and an access management server for controlling the locking of the door lock; wherein the door lock includes a door lock storage unit storing a key table including a sequence number and a key corresponding to the sequence number, and the access management server includes a server storage unit storing an ID of the door lock and a key table, and wherein the access management server transmits the ID of the door lock and the key table to the user's application upon a user's request, and when the user's application and the door lock are connected, the door lock transmits a sequence number, and the user's application compares a key provided according to the sequence number with a key corresponding to the sequence number stored in the door lock to unlock the door lock.

[0020] In one embodiment, the door lock may be the smart door lock described above, and the door lock may change the order of transmission after unlocking. Effects of the invention

[0021] Through the above configuration, the present invention can provide a smart door lock and an automatic check-in system with enhanced security performance.

[0022] The present invention can provide an automatic smart door lock and an automatic entry system that are free from short-range communication connection hijacking or sniffing. Brief explanation of the drawing

[0023] FIG. 1 is a schematic diagram of an automatic access system according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a smart door lock according to an embodiment of the present invention. FIG. 3 is a schematic diagram of an additional mounting portion of a smart door lock according to an embodiment of the present invention. FIG. 4 is a flowchart showing a process in an automatic access system according to an embodiment of the present invention. FIG. 5 is a flowchart of the processing sequence of the server, terminal, and smart door lock upon initial entry in an automatic entry system according to an embodiment of the present invention. FIG. 6 is a flowchart of the processing sequence of a terminal and a smart door lock during multiple entry / exit in an automatic entry / exit system according to an embodiment of the present invention. FIG. 7 is a schematic diagram of a smart door lock according to another embodiment of the present invention. Specific details for implementing the invention

[0024] Preferred embodiments of the present invention will be described below with reference to the attached drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.

[0025] In addition, embodiments of the present invention are provided to more fully explain the present invention to those with average knowledge in the relevant technical field.

[0026] In drawings, the shapes and sizes of elements may be exaggerated for clearer explanation.

[0027] In describing the embodiments of the present invention, if it is determined that a detailed description of known technology related to the present invention may unnecessarily obscure the essence of the present invention, such detailed description will be omitted. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intentions or conventions of the user or operator. Therefore, such definitions should be based on the content throughout this specification. The terms used in the detailed description are merely for describing the embodiments of the present invention and should not be limited in any way. Unless explicitly stated otherwise, expressions in the singular form include the meaning of the plural form.

[0028] In this description, expressions such as “include” or “equipped” are intended to refer to certain characteristics, numbers, steps, actions, elements, parts or combinations thereof, and should not be interpreted to exclude the existence or possibility of one or more other characteristics, numbers, steps, actions, elements, parts or combinations thereof other than those described.

[0029] In this specification, terms such as 'top', 'upper', 'upper surface', 'lower', 'lower surface', 'lower side', and 'side' are based on the drawings, and in reality, they may vary depending on the direction in which the elements or components are arranged. In this specification, based on the drawing of FIG. 1, the side where the diaphragm is arranged is referred to as the upper side and the side where the yoke is arranged is referred to as the lower side, but this is not absolute and may vary depending on the direction of arrangement.

[0030] Additionally, throughout the specification, when it is said that one part is 'connected' to another part, this includes not only cases where they are 'directly connected,' but also cases where they are 'indirectly connected' with other elements in between.

[0031] The present invention will be described in detail below through each embodiment or example of the invention. It should be noted that each embodiment or example described in this specification is not limited to a single embodiment or example, but may also be combined with other embodiments or examples. Accordingly, the citation of claims in the patent claims is merely an example of an embodiment, and the technical concept of the present invention should not be interpreted as being limited only to a combination with the cited claims; rather, combinations with various claims are also included within the scope of the technical concept of the present invention.

[0032] In the present invention, the automatic access system refers to a system that controls the locking of a door in a facility that includes a door separating one space from another, such as a building, and includes rental facilities such as accommodation establishments or commercial facilities such as offices.

[0033] Short-range communication, such as Bluetooth, is relatively vulnerable to security breaches. Since Bluetooth operates on public frequencies, attackers can intercept packets (sniffing), raising concerns that packets could be intercepted and exploited when authentication is performed by sending access keys via Bluetooth.

[0034] On the other hand, in the case of door locks, power is supplied by portable power sources such as batteries. However, when connecting the door lock to the internet to receive keys from a server for security purposes, not only do the components equipped in the door lock increase, but the lock must also be connected to the internet at all times, resulting in a large amount of power consumption that is difficult to handle with portable power.

[0035] However, if an external power source is connected to the door lock, wires are connected to the door, making installation not only complicated but also costly and difficult to maintain, and the door could lock in an emergency.

[0036] The present invention can enhance security by managing access to a facility’s door, storing a pre-configured key table in a door lock and an access management server so that no security issues can occur even while using near-field communication, and controlling the locking of the door by comparing the key provided to the user through the server with the key of the door lock.

[0037] In addition, by changing the matching key every time through the key table, security can be maintained even if there is sniffing of the short-range communication.

[0038] FIG. 1 shows a schematic diagram of an automatic access system according to an embodiment of the present invention, FIG. 2 shows a schematic diagram of a smart door lock according to an embodiment of the present invention, and FIG. 3 shows a schematic diagram of an additional mounting part of a smart door lock according to an embodiment of the present invention.

[0039] As shown in FIG. 1, the automatic access system (1) may be a system that comprehensively manages everything from reservation to access, including a reservation and management server (100), an access management server (200), a data server (300), and a smart door lock (500), but in a narrower scope, it may include only the access management server (200) and the smart door lock (500). The automatic access system (1) may include a terminal (400) used by a user, for example, a mobile phone.

[0040] The reservation and management server (100) is a server that manages the management of users (C), as well as the reservation and payment of facilities. The reservation and management server (100) is connected to the data server (300) and the access management server (200), and is configured so that users (C) can access the reservation and management server (100) through a terminal (400) to perform the creation and management of user IDs, the reservation and modification of facilities, and the payment of facility usage fees. This reservation and management server (100) may be a cloud server or a server of a different administrator than the access management server (200).

[0041] The access control server (200) is connected to the reservation and management server (100) and the data server (300), and a user (C) accesses the access control server (200) through a terminal (400) to receive information related to the locking of the smart door lock (500). In this embodiment, the reservation and management server (100) and the access control server (200) are implemented as separate servers, but are not limited thereto, and it is also possible for a single server to perform the roles of both the reservation and management server (100) and the access control server (200).

[0042] After the user (C) receives user verification through the reservation and management server (100), the user (C) requests entry. The reservation and management server (100) requests the access management server (200) to transmit information related to locking to the user (C)'s terminal (400). In accordance with this request, the access management server (200) transmits information related to locking, namely, an ID corresponding to the smart door lock (500) of the reserved facility (600) and a key table for that ID, to the user (C)'s terminal (400). The functions performed by the access management server (200) will be explained again later.

[0043] The data server (300) is connected to the access control server (200) and the reservation and management server (100), and stores facility information, smart door lock information including a key table, customer information, reservation information, payment information, access approval information, and access history information. In this embodiment, the data server (300) is shown as being provided separately, but it is also possible for it to be integrated into the reservation and management server (100) or the access control server (200) without being provided as a separate server.

[0044] The terminal (400) of the user (C) is a device for the user (C) to access the reservation and management server (100) or the access management server (200), and refers to a device capable of accessing the internet, such as a mobile phone, tablet, or computer. If the terminal (400) of the user (C) is equipped with a short-range communication module, it can also communicate with the smart door lock (500) to perform the role of unlocking the smart door lock (500) of the facility (600).

[0045] A smart door lock (500) is illustrated in FIG. 2. As shown in FIG. 2, the smart door lock (500) includes a door lock body (510) and an additional mounting part (590) for communicating with a user's terminal (400). The door lock main body (510) is configured such that the locking unit (560) operates according to a signal from a control unit (550) including a processor to control the locking of the door. In this embodiment, the main body includes a case (520) that is installed on the door and forms the exterior shape, a keypad (530) that is positioned on the outer front of the case (520) and receives a number to unlock the door lock, a card reader unit (540) that is positioned at a different location from the keypad (530) on the front of the case (520) and has a proximity communication module for recognizing cards, a handle (570) that is positioned on the front and rear of the case (520) to open the door, a control unit (550) that is positioned inside the case (520) and connected to the keypad (530), the card reader unit (540), and the locking unit (560), and a locking unit (560) that moves the door locking device according to a signal from the control unit (550) to perform or unlock the lock, but is connected to the control unit (550) and provides a key for unlocking. Configurations such as the keypad (530) and card reader (540) can be selected as needed.

[0046] The additional mounting part (590) is connected to the control part (550) and is placed inside the case (520). Alternatively, the additional mounting part (590) may be placed outside rather than inside the case (520).

[0047] In this embodiment, the additional mounting part (590) is described as an additional mounting part (590) because it is configured to be additionally connected to the existing door lock body (510), but it is also possible to configure it together with the control part (550) of the door lock body (510).

[0048] The above additional mounting unit (590) includes a substrate (591), a short-range communication module (592) mounted on the substrate (591), a processor (593), a key table storage unit (595) integrated with or separately provided to the processor (593), and a program storage unit (596). For additional mounting on the door lock body (510), the short-range communication module (592), the processor (593), the key table storage unit (595), and the program storage unit (596) are mounted together on one substrate (591).

[0049] The short-range communication module (592) performs short-range communication different from the card reader unit (540), and unlike the card reader unit (540) which recognizes cards through NFC (Near Field Communication) communication, it may be a Bluetooth module. However, it is not limited to a Bluetooth module, and other short-range communication is possible as long as it can perform communication over a distance of 0.5 to 3m.

[0050] A processor (593) refers to a small computing device and is configured to process components connected on a board via a bus according to programmed instructions. The processor may include memory for storing temporary or non-temporary information used in the computing process.

[0051] The processor (593) performs various operations according to the instructions of the program stored in the program storage unit (596), including the operation of transmitting the ID of the short-range communication module (592) or the smart door lock (500), the operation of checking whether the smart door lock (500) and the terminal (400) are connected, the operation of transmitting the predetermined sequence number of the smart door lock (500), the operation of comparing the key received through the short-range communication module with the key of the sequence number of the key table, and the operation of generating an open signal transmitted to the door lock when the received key and the key of the sequence number match.

[0052] The key table storage unit (595) is a memory in which a key table (KT; see FIG. 5) containing key information and a sequence number corresponding to the key is stored. The key table contains multiple keys pre-set by the administrator (A), and by matching a sequence number to each key, it performs the role of verifying whether a key corresponding to the sequence number has been provided by ensuring that one key corresponding to the sequence number is provided. A key table identical to this key table is stored in the data server (300) or access control server (200), and when stored in the data server (300) or access control server (200), the key table is stored along with the ID of the smart door lock (500), so that a key table is stored for each smart door lock. The program storage unit (596) is a memory in which a program containing instructions for operating the processor (593) is stored.

[0053] The key table storage unit (595) and the program storage unit (596) may be physical devices used to store programs (e.g., sequences of instructions) or data for use by the processor (593) as non-transient memory. The key table storage unit (595) and the program storage unit (596) include, but are not limited to, flash memory and read-only memory (ROM) / programmable read-only memory (PROM) / erasable programmable read-only memory (EPROM) / electronically erasable programmable read-only memory (EEPROM) (e.g., typically used for firmware such as boot programs). The key table storage unit (595) and the program storage unit (596) may be part of the memory provided in the processor (593).

[0054] With reference to FIGS. 4 to 6, the operation of an automatic access system (1) according to an embodiment of the present invention will be described. FIG. 4 shows a flowchart illustrating the process of an automatic access system according to an embodiment of the present invention, FIG. 5 shows a flowchart illustrating the processing sequence of a server, a terminal, and a smart door lock during the first entry in an automatic access system according to an embodiment of the present invention, and FIG. 6 shows a flowchart illustrating the processing sequence of a terminal and a smart door lock during multiple entries in an automatic access system according to an embodiment of the present invention.

[0055] The process of FIGS. 4 to 6 can be performed by the automatic entry / exit system (1) of FIGS. 1 to 3.

[0056] As shown in FIG. 4, the automatic access method includes a step (S110) in which a user (C) accesses a reservation and management server (100) through a terminal (400) to reserve a facility (600). This step (S110) does not mean merely accessing and reserving, but may also include a step of making a payment after the reservation. In this step (S110), the reservation and management server (100) may perform the task of verifying the user through the user's (C) ID and password, and at this time, verifying / storing user information through a data server (300). After accessing the reservation and management server (100), the user can reserve a facility (600) to use, and then confirm the reservation through payment. The reservation of such a facility (600) may go through a normal reservation process, and in the present invention, an existing server may be used for the reservation and payment.

[0057] When the reservation is completed, the server (100) notifies the terminal (400) that the reservation has been confirmed, and a step (S120) is performed in which a dedicated application is provided to communicate with the smart door lock (500) by connecting to the access control server (200). In this step (S120), the application for communicating with the smart door lock (500) via short-range wireless communication is installed on the terminal (400). This step may involve directly downloading the application, but it may also be performed by providing a site link or an information page for downloading the application.

[0058] If the above reservation step (S110) is performed in an application of the terminal (400), step S120 may be omitted.

[0059] In the terminal (400), an application installation step (S130) is performed according to the provision of the application. Even in the case of the application installation step (S130), it may be omitted if the application is already installed.

[0060] When the installation of the application is completed, the terminal (400) connects to the reservation and management server (100) through the application (S140), and when the reservation is completed, the reservation and management server (100) transmits the ID and key table (KT) of the smart door lock (500) of the facility (600) that has been reserved to the terminal (400) to the access management server (200) (S150). At this time, the transmission of the ID and key table (KT) of the smart door lock (500) of the facility (600) or access to the ID and key table (KT) information is performed at the reserved time. Through this, access to the reserved facility (600) is prevented before or after the reserved time. If necessary, it is also possible to provide the information after the previous reservation holder's departure is confirmed.

[0061] The above is the reservation stage, and communication between devices in the above stages (S110, S120, S130, S140, S150) is performed via an internet connection.

[0062] From this point on, it is the automatic entry / exit stage, and in the subsequent stages, communication between devices is performed via a short-range communication method, for example, Bluetooth.

[0063] The user's terminal (400) includes a short-range communication module, and since mobile phones, tablets, and laptops typically include a Bluetooth module, it is described as being performed through the Bluetooth module.

[0064] The smart door lock (500) broadcasts the ID of the smart door lock (500), and when the user's terminal (400) comes near the smart door lock (500), the terminal (400) receives the ID of the smart door lock (500), compares it with the ID provided by the server, and if they match, pairing between the smart door lock (500) and the terminal (400) is performed. When pairing is performed, the smart door lock (500) provides the terminal (400) with a sequence number to check the key in the key table stored in the smart door lock (500) (S160).

[0065] When the terminal (400) is paired with the smart door lock (500), it receives the sequence number provided by the smart door lock (500) and transmits the key corresponding to the sequence number of the key table (KT) it possesses to the smart door lock (500) (S170).

[0066] The smart door lock (500) compares the key provided by the terminal (400) with the key of the sequence number provided by the smart door lock (500), and if the two keys match, it unlocks the locking part (560) of the smart door lock (500) (S180). By doing so, the user unlocks the smart door lock (500) of the facility (600) they wish to use and can use the facility (600).

[0067] In Fig. 5, the process of unlocking is illustrated in more detail. Fig. 5 shows the appearance at the time of the initial unlock.

[0068] When unlocking for the first time, the access management server (200) transmits the ID and key table (KT) of the smart door lock (500) of the facility (600) that has completed the reservation to the terminal (400) (S150). Accordingly, the terminal (400) accesses the smart door lock (500) while the application that manages access and stores the ID and key table (KT) of the smart door lock (500) is running.

[0069] The smart door lock (500) broadcasts the ID of the short-range communication module (592), which is the ID of the smart door lock (500), regardless of whether the terminal (400) approaches (S161). That is, the smart door lock (500) broadcasts the ID of the smart door lock (500) so that it can be received by an adjacent terminal (400).

[0070] When the user's terminal (400) receives an ID transmitted by the smart door lock (500) while the application is active, it compares it with the ID of the smart door lock (500) received from the access control server (200), and if the two IDs match, it performs pairing.

[0071] When pairing is performed, or together with the ID of the smart door lock (500), the smart door lock (500) transmits a predetermined sequence number for key comparison from the key table (KT) it possesses to the terminal (400) (S162).

[0072] After receiving the sequence number, the terminal (400) transmits the key corresponding to the sequence number from the stored key table (KT) to the smart door lock (500) (S170). The smart door lock (500) compares the transmitted key with the key of the sequence number transmitted from the key table (KT) of the key table storage unit (595). If they are the same, the processor (593) provides key verification information to the control unit (550). Upon receiving this information, the control unit (550) transmits an unlock signal to the locking unit (560), thereby unlocking the smart door lock (500) (S180) and allowing the user to enter the facility (600). If the transmitted key and the key of the sequence number transmitted from the key table (KT) of the key table storage unit (595) are different, the sequence number is transmitted again (S162).

[0073] The smart door lock (500) performs a step (S190) of changing the sequence number determined for key comparison after the locking part (560) unlocks. Since the smart door lock (500) changes the sequence number whenever the lock is unlocked, the key corresponding to the sequence number is also changed. Therefore, the key used when opening the smart door lock (500) becomes a one-time key, and thereafter, the lock cannot be unlocked with the same key until the corresponding sequence number comes again. Therefore, even if someone steals the near-field wireless communication key through sniffing, the smart door lock (500) cannot be opened with the stolen key after the door has already been opened once.

[0074] In addition, since the smart door lock (500) does not receive key information online, constant online connection is unnecessary, so the smart door lock (500) can operate while using minimal power, and hacking of the smart door lock (500) online is also impossible.

[0075] By placing an additional mounting unit (590) connected to a control unit (550) inside the door lock body (510), the existing door lock body (510) can be improved into a smart door lock (500) with enhanced security, so the cost required to improve it into a smart door lock (500) can be significantly reduced, and automatic access control can be achieved, making it unnecessary to have personnel to manage access to the facility.

[0076] Figure 6 illustrates the process of unlocking, and unlike Figure 5, the process of unlocking during multiple entry and exit is illustrated.

[0077] The ID and key table (KT) of the smart door lock (500) have already been transmitted to the terminal (400). Even during multiple entry and exit, the smart door lock (500) broadcasts the ID of the short-range communication module (592), which is the ID of the smart door lock (500), regardless of whether the terminal (400) approaches (S161).

[0078] When the user's terminal (400) receives an ID transmitted by the smart door lock (500) while the application is active, it compares it with the ID of the smart door lock (500) received from the access control server (200), and if the two IDs match, it performs pairing.

[0079] When pairing is performed, or together with the ID of the smart door lock (500), the smart door lock (500) transmits a sequence number determined for key comparison from the key table (KT) it possesses to the terminal (400) (S162). As mentioned above, the sequence number transmitted at this time is different from the sequence number during the initial entry.

[0080] After receiving the sequence number, the terminal (400) transmits the key corresponding to the sequence number from the stored key table (KT) to the smart door lock (500) (S170). The smart door lock (500) compares the transmitted key with the key of the sequence number transmitted from the key table (KT) of the key table storage unit (595), and if they are the same, the processor (593) provides key verification information to the control unit (550). Upon receiving this information, the control unit (550) transmits an unlock signal to the locking unit (560), thereby unlocking the smart door lock (500) (S180), and allowing the user to enter the facility (600).

[0081] The smart door lock (500) performs a step (S190) of changing the sequence number determined for key comparison after the locking part (560) unlocks. Since the smart door lock (500) changes the sequence number whenever the lock is unlocked, the key corresponding to the sequence number is also changed. One sequence number allows for one unlock (S180), and once the lock is unlocked (S180), the sequence number is changed (S190).

[0082] FIG. 7 shows a schematic diagram of a smart door lock according to another embodiment of the present invention.

[0083] The smart door lock (500) of FIG. 7 is identical to the smart door lock (500) of FIG. 2 except for the additional mounting part (590), so redundant descriptions will be omitted. The smart door lock (500) of FIG. 7 has an additional mounting part (590) for communicating with a user's terminal (400) integrated inside the door lock body (510).

[0084] The door lock main body (510) is configured such that the locking unit (560) operates according to a signal from a control unit (550) including a processor to control the locking of the door. In this embodiment, the main body includes a case (520) that is installed on the door and forms the exterior shape, a keypad (530) that is positioned on the outer front of the case (520) and receives a number to unlock the door lock, a card reader unit (540) that is positioned at a different location from the keypad (530) on the front of the case (520) and has a proximity communication module for recognizing cards, a handle (570) that is positioned on the front and rear of the case (520) to open the door, a control unit (550) that is positioned inside the case (520) and connected to the keypad (530), the card reader unit (540), and the locking unit (560), and a locking unit (560) that moves the door locking device according to a signal from the control unit (550) to perform or unlock the lock, but is connected to the control unit (550) and provides a key for unlocking. Configurations such as the keypad (530) and card reader (540) can be selected as needed.

[0085] The additional mounting unit (590) is integrated with the control unit (550) of the door lock body (510). That is, the short-range communication module (592), processor (593), key table storage unit (595), and program storage unit (596), which are components of the additional mounting unit (590), can be mounted on the circuit board of the control unit (550), and some components may be used in common with the control unit (550).

[0086] In the case of the smart door lock (500) of Fig. 7, by integrating it into the control unit (550) without a separate additional mounting part (590), the configuration can be simplified while still performing the same function as Fig. 2.

[0087] Although the present invention has been described above with reference to embodiments, it is understood that the invention is not limited thereto and can be implemented with various modifications. Explanation of the symbols

[0088] 1: Automatic access system 100: Reservation and Management Server 200: Access Control Server 300: Data Server 400: Terminal 500: Smart Door Lock 510: Door lock main unit 520: Case 530: Keypad 540: Card Reader Department 550: Control unit 560: Locking part 570: Handle 590: Additional mounting part 600: Facilities

Claims

Claim 1 A smart door lock comprising: a short-range communication module; a processor connected to the short-range communication module; a storage unit connected to the processor; and a door lock body connected to the processor, wherein the storage unit includes a program storage unit storing a program that controls the processor and a key table storage unit storing a preset key table, and the processor compares a key received through the short-range communication module with a key of the key table, and unlocks the door lock body when the received key matches the key of the key table. Claim 2 A key table smart door lock according to claim 1, wherein the key table includes a number and a number of keys corresponding to the number, and the processor transmits an ID and the number of the key table through the near-field communication module. Claim 3 In claim 1, the program performs operations through commands, and the operations include the operation of transmitting a sequence number of the key table through the near-field communication module, the operation of comparing a key received through the near-field communication module with a key of the sequence number of the key table, and the operation of generating a release signal transmitted to the door lock main body when the received key and the key of the sequence number match. Claim 4 A key table smart door lock according to claim 3, wherein the operation further includes generating the release signal and then changing the sequence number. Claim 5 In claim 4, the operation further comprises transmitting the ID of the smart door lock or the near-field communication module together when transmitting the sequence number of the key table. Claim 6 In claim 5, the door lock body includes an additional mounting portion comprising the short-range communication module, the processor, and the storage portion, wherein the door lock body includes a case that can be opened internally, and the additional mounting portion is a key table smart door lock disposed inside the case. Claim 7 In claim 5, the short-range communication module is a Bluetooth module, a key table smart door lock. Claim 8 An automatic access system comprising: a door lock installed on the door of a facility; and an access management server for controlling the locking of the door lock; wherein the door lock includes a door lock storage unit in which a key table including a sequence number and a key corresponding to the sequence number is stored; the access management server includes a server storage unit in which an ID of the door lock and a key table are stored; and wherein the access management server transmits the ID of the door lock and the key table to the user's application upon a user's request, and when the user's application and the door lock are connected, the door lock transmits a sequence number, and the user's application compares a key provided according to the sequence number with a key corresponding to the sequence number stored in the door lock to unlock the door lock. Claim 9 In claim 8, the door lock is an automatic access system that is a key table smart door lock of claim 1. Claim 10 In claim 8, the door lock is an automatic access system that changes the sequence number transmitted after unlocking.

Images