Access control method for a door operation device communicating with a user terminal, access control method for a user terminal communicating with a door operation device, door operation device and user terminal

Abstract

The present invention relates to an access control system and an access control method using the access control system that can address the inconvenience caused to users due to the time required to open a door. [Solution] The method may include a step of determining a distance between the door operating device and the user terminal based on a received signal strength corresponding to a transmitted signal from at least one of the door operating device and the user terminal; a step of determining whether the distance between the door operating device and the user terminal is within a first distance; a step of establishing a communication connection between the door operating device and the user terminal when the distance between the door operating device and the user terminal is within the first distance; a step of determining whether the distance between the door operating device and the user terminal is within a second distance; and a step of obtaining opening authentication information when the distance between the door operating device and the user terminal is within the second distance.

Description

[Technical field]

[0001] The present invention relates to an access control system and an access control method using the access control system. [Background technology]

[0002] When controlling access to a building or a particular area, techniques are used that allow the access control device to retrieve information pre-stored in the user terminal to control access and decide whether to open the door or not.

[0003] User terminals using this technology have traditionally been implemented as card keys or the like, but in recent years application has gradually expanded to mobile terminals such as smart phones held by users.

[0004] When using a mobile terminal to perform access control, compared with the traditional case where a card key is used, it takes a long time for the access control device to obtain the information required to decide whether to open the door from the mobile terminal by establishing a communication connection and obtaining data, which results in the user feeling that the operation is slow, thus causing inconvenience to the user. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention relates to an access control system and an access control method using the access control system, which can address the inconvenience caused to a user due to the time required to open a door when a request is made by the user, by establishing a communication connection at a predetermined distance and obtaining the information required to open the door at a closer distance. [Means for solving the problem]

[0006] An embodiment of the present invention provides an access control method for a door operation device communicating with a user terminal, the access control method includes: determining a distance between the door operation device and the user terminal based on a received signal strength corresponding to a transmission signal from at least one of the door operation device and the user terminal, determining whether the distance between the door operation device and the user terminal is within a first distance, establishing a communication connection between the door operation device and the user terminal when the distance between the door operation device and the user terminal is within the first distance, determining whether the distance between the door operation device and the user terminal is within a second distance, obtaining opening authentication information when the distance between the door operation device and the user terminal is within the second distance, and determining whether the door is open based on the opening authentication information.

[0007] Another embodiment of the present invention provides an access control method including the steps of determining a distance between a door operation device and a user terminal based on a received signal strength corresponding to a transmitted signal from the door operation device, determining whether the distance between the door operation device and the user terminal is within a first distance, establishing a communication connection between the door operation device and the user terminal when the distance between the door operation device and the user terminal is within the first distance, sending first opening authentication information to the door operation device, determining whether the distance between the door operation device and the user terminal is within a second distance, and sending second opening authentication information to the door operation device to request opening of the door when the distance between the door operation device and the user terminal is within the second distance.

[0008] Another embodiment of the present invention provides a non-transitory recording medium having a program recorded thereon for performing the above-mentioned method.

[0009] Another embodiment of the present invention provides a door operation device configured to communicate with a user terminal, the door operation device comprising: a communication unit; and a control unit configured to determine a distance from the user terminal based on a strength of a signal transmitted from the user terminal, establish a communication connection with the user terminal when the distance from the user terminal is within a first distance, obtain first opening information from the user terminal through the communication connection using the communication unit, obtain second opening authentication information from the user terminal using the communication unit when the distance between the user terminal and the door changes from the first distance to a second distance, and determine whether a door is open based on the first opening authentication information and the second opening authentication information. Effect of the Invention

[0010] According to one embodiment, by establishing a communication connection at a predetermined distance and obtaining the information required to open the door at a closer distance, the inconvenience caused to the user due to the time required to open the door when a request is made by the user can be addressed. [Brief description of the drawings]

[0011] The above and other objects, features and advantages of the present invention will become more apparent to those skilled in the art from a detailed description of illustrative embodiments thereof taken in conjunction with the accompanying drawings.

[0012] [Figure 1] FIG. 1 is an environmental diagram illustrating an access control system in accordance with an illustrative embodiment. [Diagram 2] FIG. 1 is a block diagram illustrating a door operating device according to an exemplary embodiment. [Diagram 3] 1 is a block diagram illustrating a user terminal in accordance with an exemplary embodiment. [Figure 4] FIG. 2 is a block diagram illustrating an authentication server according to an example embodiment. [Diagram 5] FIG. 1 is a schematic diagram illustrating a door operating environment in accordance with an illustrative embodiment. [Figure 6]1 is a flowchart illustrating a method of operating a door according to an exemplary embodiment. [Figure 7] 4 is a flowchart illustrating a method of operating a door according to another exemplary embodiment. [Figure 8] 11 is a flowchart illustrating a door operation method according to yet another exemplary embodiment. [Figure 9] 11A-11C are exemplary diagrams illustrating alteration of variable areas in accordance with exemplary embodiments of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] [Best embodiment of the present invention]

[0014] An embodiment of the present invention provides an access control method for a door operation device communicating with a user terminal, the access control method includes: determining a distance between the door operation device and the user terminal based on a received signal strength corresponding to a transmission signal from at least one of the door operation device and the user terminal, determining whether the distance between the door operation device and the user terminal is within a first distance, establishing a communication connection between the door operation device and the user terminal when the distance between the door operation device and the user terminal is within the first distance, determining whether the distance between the door operation device and the user terminal is within a second distance, obtaining opening authentication information when the distance between the door operation device and the user terminal is within the second distance, and determining whether the door is open based on the opening authentication information.

[0015] [Embodiments of the present invention]

[0016] The above objects, features, and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although the present invention has been shown and described in connection with exemplary embodiments thereof, it will be apparent to those skilled in the art that various modifications can be made therein without departing from the spirit and scope of the invention.

[0017] It will be understood that for brevity and clarity of illustration, layers and regions are not necessarily to scale in the figures. When an element or layer is referred to as being "on" or "over" another element or layer, it will be understood that it may be directly on the other element or layer, or that intermediate layers or elements may be present. Like reference numbers refer to like elements throughout this specification. It will also be understood that like reference numbers refer to like elements of like function within the same technical subject matter shown in the drawings of the embodiments.

[0018] Detailed descriptions of well-known functions and configurations incorporated in this specification will be omitted when it may make the subject matter of the present invention somewhat unclear. Furthermore, numbers (e.g., first, second, etc.) used in this specification of the present invention are merely identifiers for distinguishing one element from another.

[0019] As used herein, the suffixes "module" and "unit" are added or used interchangeably for ease of preparation of this specification and are not intended to imply distinct meanings or functions.

[0020] FIG. 1 is an environmental diagram illustrating an access control system 10000, in accordance with an example embodiment.

[0021] Referring to FIG. 1, an access control system 10000 according to an embodiment may include a door operation device 1000, a user terminal 2000, and an authentication server 3000.

[0022] According to one embodiment, the door operation device 1000 may be connected to a user terminal 2000.

[0023] According to an embodiment, the door operating device 1000 may obtain the opening authentication information from the user terminal 2000, and may determine the validity based on the obtained opening authentication information. Furthermore, the door operating device 1000 may determine whether to open the door based on the result of the validity determination.

[0024] According to one embodiment, the user terminal 2000 may be connected to the door operation device 1000.

[0025] The user terminal 2000 may establish a communication connection with the door operation device 1000 by transmitting connection authentication information to the door operation device.

[0026] In addition, the user terminal 2000 may request that the door be opened by sending opening authentication information to the door operation device 1000.

[0027] Alternatively, the user terminal 2000 may transmit opening authentication information to the door operation device 1000 to have its validity determined, and may request that the door be opened by transmitting opening request information.

[0028] The authentication server 3000 may be connected to the user terminal 2000 .

[0029] The authentication server 3000 may provide opening authentication information that the user terminal 2000 sends to the door operation device 1000 to request that the door be opened.

[0030] The authentication server 3000 may be requested by the user terminal 2000 to issue open authentication information.

[0031] In addition, when the authentication server 3000 is requested by the user terminal 2000 to issue open authentication information, the authentication server 3000 may obtain information necessary to determine whether the user and / or terminal is a valid user and / or a valid user terminal 2000. As a result of the determination, when the user and / or terminal is a valid user and / or a valid user terminal 2000, the authentication server 3000 may issue open authentication information to the user terminal 2000.

[0032] FIG. 2 is a block diagram illustrating a door operation device 1000 according to an exemplary embodiment.

[0033] Referring to FIG. 2 , the door operation device 1000 may include a door communication unit 1100, a door display unit 1200, a door sensor unit 1300, a door drive unit 1400, a door storage unit 1500, and a door control unit 1600.

[0034] The door communication unit 1100 may be a communication module capable of obtaining data from the user terminal 2000 .

[0035] According to some embodiments of the present invention, the door communication unit 1100 may obtain data from the user terminal 2000 using communication technologies including Bluetooth®, ZigBee®, Bluetooth® Low Energy (BLE), or RFID.

[0036] The door display unit 1200 can output visual information.

[0037] The door display unit 1200 may output information that is visually provided to a user. When the door display unit 1200 includes a touch panel, the door display unit 1200 may operate as a touch-input-based input device.

[0038] The door sensor unit 1300 may obtain a signal of the door open state.

[0039] Alternatively, the door sensor unit 1300 may obtain the signals necessary to determine the status of the door.

[0040] The door drive unit 1400 may provide the power required to lock or unlock the door body provided in the door. Furthermore, when the door is implemented as an automatic door, the door drive unit 1400 may provide the power required to open or close the door body.

[0041] The door storage unit 1500 may store programs for executing the control operations of the door control unit 1600, and may store data received from the outside and data generated by the door control unit 1600.

[0042] The door control unit 1600 controls the overall operation of the door operating device 1000 .

[0043] FIG. 3 is a block diagram illustrating a user terminal 2000 in accordance with an exemplary embodiment.

[0044] Referring to FIG. 3, a user terminal 2000 may include: a terminal communication unit 2100, a terminal display unit 2200, a terminal input unit 2300, a terminal storage unit 2400, and a terminal control unit 2500.

[0045] The terminal communication unit 2100 may connect the user terminal 2000 to external electronic devices. For example, the terminal communication unit 2100 may connect the user terminal 2000 to external electronic devices such as the authentication server 3000 and the door operation device 1000. The terminal communication unit 2100 may be a communication module supporting wired and / or wireless communication.

[0046] The terminal display unit 2200 may output visual information.

[0047] When the terminal display unit 2200 is provided in the form of a touch screen, the terminal display unit 2200 may perform the functions of the terminal input unit 2300. In this case, a separate terminal input unit 2300 may not be provided depending on the option, and the terminal input unit 2300 may be provided for performing limited functions such as volume control, a power button, and a home button.

[0048] The terminal input unit 2300 may obtain a signal corresponding to a user input.

[0049] The terminal input unit 2300 may be implemented, for example, in the form of a keyboard, a keypad, a button, a jog shuttle, a wheel, or the like.

[0050] The user input may be, for example, a button push, touch, or drag.

[0051] When the terminal display unit 2200 is implemented in the form of a touch screen, the terminal display unit 2200 may function as a terminal input unit 2300 .

[0052] The terminal storage unit 2400 may store data.

[0053] The terminal storage unit 2400 may be implemented in the form of, for example, a flash memory, a random access memory (RAM), a read-only memory (ROM), a solid-state drive (SSD), a secure digital (SD) card, an optical disk, or the like.

[0054] The terminal storage unit 2400 may store data necessary for the operation of the user terminal 2000 .

[0055] The terminal control unit 2500 may control the overall operation of the user terminal 2000 .

[0056] FIG. 4 is a block diagram illustrating an authentication server 3000, according to an example embodiment.

[0057] Referring to FIG. 4 , the authentication server 3000 may include a server communication unit 3100 , a server display unit 3200 , a server input unit 3300 , a server storage unit 3400 , and a server control unit 3500 .

[0058] The server communication unit 3100 may connect the authentication server 3000 to an external electronic device. That is, the server communication unit 3100 may transmit / receive data to / from the external electronic device. In addition, the server communication unit 3100 may hold or release the communication connection of the user terminal 2000 as needed. The server communication unit 3100 may be provided to always hold a connection with the user terminal 2000 according to one embodiment.

[0059] The server communication unit 3100 may be a communication module supporting at least one of a wired communication scheme and a wireless communication scheme.

[0060] The server display unit 3200 may output visual information.

[0061] For example, the server display unit 3200 may be a liquid crystal display (LCD), an organic light emitting diode (OLED) display, an active matrix OLED (AMOLED) display, or the like.

[0062] The server input unit 3300 may obtain an electrical signal corresponding to a user input. For example, the server input unit 3300 may include a keypad, a keyboard, a switch, a button, and a touch screen.

[0063] The server storage unit 3400 may store data.

[0064] For example, the server storage unit 3400 may store data acquired from the user terminal 2000. In another example, the server storage unit 3400 may store a program required for the operation of the authentication server 3000.

[0065] The server control unit 3500 may control the overall operation of the authentication server 3000 .

[0066] The authentication server 3000 of the present invention does not necessarily include all of the above-mentioned elements, and may be provided with some elements selectively omitted. For example, when the authentication server 3000 does not directly provide visual information, the authentication server 3000 may be provided without the server display unit 3200. The authentication server 3000 may be provided by adding elements to perform additional functions and operations selectively.

[0067] FIG. 5 is a diagram illustrating a door operating environment in accordance with an exemplary embodiment.

[0068] Referring to FIG. 5, a door operation environment according to an embodiment may provide a first area A1 within a first distance D1 from the door operation device 1000 and a second area A2 within a second distance D2 from the door operation device 1000.

[0069] According to one embodiment, the first distance D1 may be greater than the second distance D2.

[0070] According to one embodiment, the first area A1 and the second area A2 may overlap each other.

[0071] For example, the second area A2 may be at least a part of the first area A1.

[0072] Alternatively, according to one embodiment, the first area A1 and the second area A2 may be spaces separated from each other.

[0073] For example, a second area A2 may be provided within a second distance D2 from the door operating device 1000, and a first area A1 may be provided within a predetermined distance from the second area A2.

[0074] According to one embodiment, the user terminal 2000 may move through a first area A1 and a second area A2.

[0075] In the following, the door operation method will be described with reference to Figures 6 to 8. For simplicity, it is assumed that the user terminal 2000 moves from outside the first area A1 to the first area A1 and the second area A2.

[0076] FIG. 6 is a flow chart illustrating a method for operating a door, according to an exemplary embodiment.

[0077] Referring to FIG. 6, the door operation method may include a step (S100) of acquiring information regarding the distance to a user terminal 2000, a step (S105) of determining whether the distance 2000 between the door operation device and the user terminal is within a first distance D1, a step (S110) of requesting connection authentication information, a step (S115) of transmitting the connection authentication information, a step (S120) of establishing a communication connection, a step (S125) of transmitting first opening authentication information, a step (S130) of determining whether the distance 2000 between the door operation device and the user terminal is within a second distance D2, a step (S135) of requesting second opening authentication information, a step (S140) of transmitting the second opening authentication information, a step (S145) of determining validity, and a step (S150) of opening the door.

[0078] According to one embodiment, a step of obtaining information regarding the distance to the user terminal 2000 may be performed (S100).

[0079] The door operation device 1000 may obtain information regarding the distance between the door operation device 1000 and the user terminal 2000.

[0080] According to one embodiment, the door operation device 1000 may obtain information regarding the distance between the door operation device 1000 and the user terminal 2000 based on a received signal strength indicator (RSSI).

[0081] For example, the door operation device 1000 may acquire the RSSI based on an advertisement packet transmitted from the user terminal 2000. Furthermore, the door operation device 1000 may acquire information regarding the distance between the door operation device 1000 and the user terminal 2000 based on the acquired RSSI.

[0082] The door operation device 1000 may acquire a signal transmitted from a user terminal 2000 located within communication distance, and may determine the RSSI of the acquired signal transmitted from the user terminal 2000.

[0083] The door operation device 1000 may also calculate the distance 2000 between the door operation device and the user terminal based on the RSSI of the signal transmitted from the user terminal 2000.

[0084] For example, when the RSSI of a signal transmitted from the user terminal 2000 is 10 dB, the door operation device 1000 may determine that the distance between the door operation device 1000 and the user terminal 2000 is 10 m.

[0085] The method of calculating distance described above can be applied to obtain distance information used to determine the first distance D1 and the second distance D2, as described below.

[0086] For example, the step of acquiring information on distance may be repeatedly performed by a predetermined cycle, data transmission / reception, or the like. In addition, the step of acquiring information on distance (S100) described above may be performed in advance to acquire distance information when determining the first distance D1 and the second distance D2 described below.

[0087] Furthermore, when obtaining the above-mentioned information regarding the distance, the RSSI may be obtained based on different data depending on the communication connection status.

[0088] For example, prior to a communication connection between the door operation device 1000 and the user terminal 2000, the RSSI may be obtained by an advertising packet transmitted by one of the door operation device 1000 and the user terminal 2000, and information regarding distance may be obtained based on the obtained RSSI.

[0089] As another example, when a communication connection between the door operation device 1000 and the user terminal 2000 is maintained, distance information can be obtained based on the strength of the signal received in data transmission and / or reception between the door operation device 1000 and the user terminal 2000.

[0090] According to one embodiment, a step of determining whether the distance is within a first distance D1 may be performed (S105).

[0091] The door operation device 1000 according to the embodiment may determine whether the distance between the door operation device 1000 and the user terminal 2000 obtained based on the RSSI is within a first distance D1.

[0092] For example, when the first distance D1 is 15 m and the distance between the door operation device 1000 and the user terminal 2000 is 10 m, the door operation device 1000 may determine that the user terminal 2000 is located within the first distance D1.

[0093] According to one embodiment, a step of requesting connection authentication information may be performed (S110).

[0094] According to one embodiment, when the user terminal 2000 is located within the first distance D1, the door operation device 1000 may request connection authentication information from the user terminal 2000.

[0095] The connection authentication information may be information necessary for the door operation device 1000 and the user terminal 2000 to establish a communication connection.

[0096] For example, the connection authentication information may be information required for a communication connection, such as a communication ID, an encryption key, and a Media Access Control (MAC) address.

[0097] According to one embodiment, a step of transmitting connection authentication information may be performed (S115).

[0098] According to one embodiment, the user terminal 2000 may transmit connection authentication information to the door operation device 1000.

[0099] According to one embodiment, the user terminal 2000 may transmit connection authentication information to the door operation device 1000 in response to a request from the door operation device 1000 for transmission of the connection authentication information.

[0100] According to one embodiment, a step of establishing a communication connection may be performed (S120).

[0101] According to one embodiment, the door operation device 1000 may establish a communication connection with a user terminal 2000.

[0102] For example, a communication connection may be established between the door communication unit 1100 of the door operation device 1000 and the terminal communication unit 2100 of the user terminal 2000.

[0103] According to one embodiment, the door communication unit 1100 of the door operation device 1000 and the terminal communication unit 2100 of the user terminal 2000 may be BLE communication modules, and the communication connection between the door operation device 1000 and the user terminal 2000 may be a BLE communication connection.

[0104] The door operation device 1000 may maintain communication with a user terminal 2000.

[0105] According to one embodiment, the door operation device 1000 may maintain communication until the user terminal 2000 moves outside the first area A1.

[0106] According to one embodiment, a step of transmitting first opening authentication information may be performed (S125).

[0107] The opening authentication information may be information necessary to determine whether the user terminal 2000 and / or the user of the user terminal 2000 is a valid terminal and / or user authorized to open the door.

[0108] According to one embodiment, the open authentication information may include at least one of authentication information, user identification information, user terminal identification information, and a password.

[0109] The authentication information may be information regarding whether or not authority to open the door has been assigned.

[0110] The user identity may be an identity assigned to a user.

[0111] The user terminal identification information may be identification information assigned to the user terminal 2000. For example, the user terminal identification information may include an ID, a model name, a serial number, and a communication number assigned to the user terminal.

[0112] A password may be information that can be used to determine validity based on a match. For example, a password may be a key that includes at least one of numbers and letters. As another example, a password may be biometric information.

[0113] The open authentication information may include first open authentication information and second open authentication information.

[0114] The first opening authentication information may be at least a portion of the entire data packet of opening authentication information, and the second opening authentication information may be the remaining portion of the data packet excluding the first opening authentication information.

[0115] According to an embodiment, the size of the data packet of the first opening authentication information may be larger than the size of the data packet of the second opening authentication information.

[0116] In addition, the data packets included in the first opening authentication information may be different from the data packets included in the second opening authentication information.

[0117] Furthermore, depending on the selection, some of the data packets included in the first opening authentication information may be identical to some of the data packets included in the second opening authentication information.

[0118] Therefore, the data packets included in the first opening authentication may be at least partially different from the data packets included in the second opening authentication.

[0119] Although it has been described that the open authentication information includes the first open authentication information and the second open authentication information, the embodiment is not limited thereto. The first open authentication information and the second open authentication information may be subdivided. For example, the first open authentication information may be subdivided into 1-1th open authentication information and 1-2nd open authentication information, and the second open authentication information may be subdivided into 2-1th open authentication information and 2-2nd open authentication information.

[0120] Alternatively, the first opening credential may be data obtained by encrypting the open credential, and the second opening credential may be provided as an encryption key required to decode the first opening credential and obtain the open credential.

[0121] According to one embodiment, the user terminal 2000 may transmit the first opening authentication information to the door operation device 1000.

[0122] According to one embodiment, the user terminal 2000 may transmit the first opening authentication information to the door operation device 1000 based on a first opening authentication information request from the door operation device 1000.

[0123] According to one embodiment, the first open authentication information and the second open authentication information may be pre-stored in the user terminal 2000 separately.

[0124] The user terminal 2000 may transmit, to the door operation device 1000, first opening authentication information that is between the first opening authentication information and the second opening authentication information that are individually stored in advance.

[0125] Alternatively, according to one embodiment, the first open authentication information and the second open authentication information may be integrated into the open authentication information stored in the user terminal 2000.

[0126] The user terminal 2000 may obtain the first opening authentication information by separating the predetermined data packet from the opening authentication information, and may transmit the obtained first opening authentication information to the door operation device 1000.

[0127] Alternatively, the user terminal 2000 may obtain the first opening authentication information by separating a data packet of a predetermined size from the opening authentication information and may transmit the obtained first opening authentication information to the door operation device 1000.

[0128] According to one embodiment, a step of determining whether the distance is within a second distance D2 (S130) may be performed.

[0129] According to one embodiment, the door operation device 1000 may determine the distance between the door operation device 1000 and the user terminal 2000 based on the RSSI when acquiring a data packet from the user terminal 2000 using a communication connection established between the door operation device 1000 and the user terminal 2000.

[0130] The door operation device 1000 according to an embodiment may determine whether the distance between the door operation device 1000 and the user terminal 2000 obtained based on the RSSI is within a second distance D2.

[0131] For example, when the second distance D2 is 1 m and the distance between the door operation device 1000 and the user terminal 2000 is 30 cm, the door operation device 1000 may determine that the user terminal 2000 is located within the second distance D2.

[0132] According to one embodiment, a step of requesting second open authentication information may be performed (S135).

[0133] According to one embodiment, when the user terminal 2000 is located within the second distance D2, the door operation device 1000 may request opening authentication information from the user terminal 2000.

[0134] According to one embodiment, a step of transmitting second open authentication information may be performed (S140).

[0135] According to one embodiment, the user terminal 2000 may transmit second opening authentication information to the door operation device 1000.

[0136] According to one embodiment, the user terminal 2000 may transmit the second opening authentication information to the door operation device 1000 upon a request from the door operation device 1000 to transmit the second opening authentication information.

[0137] According to one embodiment, a step of determining validity may be performed (S145).

[0138] According to one embodiment, the door operation device 1000 may obtain opening authentication information based on first opening authentication information obtained at a first distance D1 between the door operation device 1000 and the user terminal 2000, and second opening authentication information obtained at a second distance D2 between the door operation device 1000 and the user terminal 2000.

[0139] According to one embodiment, the door operation device 1000 may obtain the opening authentication information by integrating the first opening authentication information and the second opening authentication information.

[0140] According to one embodiment, the door operating device 1000 may obtain the opening credential by decoding the first opening credential using the encryption key included in the second opening credential.

[0141] As described above, the user terminal 2000 may provide a portion of the opening authentication information to the door operation device 1000 at the first distance D1, rather than transmitting the entire opening authentication information at the first distance D1, and may provide the remaining portion of the opening authentication information excluding the first opening authentication information at the distance D2. By transmitting a portion of the opening authentication information before determining the validity, the time required for data transmission may be reduced. Furthermore, leakage of the opening authentication information may be avoided.

[0142] According to one embodiment, when the door operation device 1000 obtains the opening authentication information from the user terminal 2000, it may determine whether the opening authentication information is valid.

[0143] Determining whether the open authentication information is valid may include at least one of determining whether the open authentication information itself is valid, determining whether the user is valid based on the open authentication information, and determining whether the user terminal 2000 is valid based on the open authentication information.

[0144] According to one embodiment, determining validity may be the action of determining whether or not to open the door.

[0145] The door operation device 1000 may determine validity based on the opening authentication information.

[0146] The door operation device 1000 may determine validity based on at least one of the authentication information, the user identification information, the user terminal identification information, and the password included in the opening authentication information.

[0147] According to one embodiment, the door operation device 1000 may determine that the opening credentials are valid when the credentials include information indicating that authority to open the door has been assigned.

[0148] According to one embodiment, the door operation device 1000 may determine that the opening authentication information is valid when the user identification information and / or user terminal identification information matches previously registered user identification information and / or user terminal identification information.

[0149] According to one embodiment, the door operation device 1000 may determine that the opening credential is valid when it is determined that the password included in the opening credential matches a pre-stored password.

[0150] Alternatively, according to one embodiment, the door operation device 1000 may determine validity based on at least one of the user identification information, the user terminal identification information, and the password, and may determine whether to open the door by determining whether the authority to open the door is assigned based on the authentication information.

[0151] For example, when the door operation device 1000 determines that the opening authentication information is valid as a result of determining the validity based on at least one of the user identification information, the user terminal identification information, and the password, the door operation device 1000 may determine whether to control the opening of the door by further considering the authentication information included in the opening authentication information. The door operation device 1000 may decide to open the door as soon as it determines that the authentication information includes the authority to open the door.

[0152] According to one embodiment, a step of opening the door may be performed (S150).

[0153] According to one embodiment, the door operation device 1000 may execute a control action to open the door when the opening authentication information is valid as a result of the authentication.

[0154] According to one embodiment, the door operation device 1000 may execute a control action to open the door when the opening authentication information is valid as a result of the authentication and the authority to open the door is assigned.

[0155] When the opening authentication information is valid as the authentication result, the door operation device 1000 may provide power through the door drive unit so that the door is unlocked.

[0156] FIG. 7 is a flow chart illustrating a method for operating a door according to another exemplary embodiment.

[0157] Referring to FIG. 7, the door operation method may include a step of obtaining information regarding the distance to the door operation device (S200), a step of determining whether the distance is within D1 (S210), a step of sending connection authentication information (S115), a step of establishing a communication connection (S120), a step of sending first opening authentication information (S125), a step of determining whether the distance is within D2 (S220), a step of sending second opening authentication information (S140), a step of determining validity (S180), and a step of opening the door (S190).

[0158] According to one embodiment, a step of obtaining information regarding the distance to the door operating device 1000 may be performed (S200).

[0159] According to one embodiment, the user terminal 2000 may obtain information regarding the distance between the door operation device 1000 and the user terminal 2000.

[0160] According to one embodiment, the user terminal 2000 may obtain information regarding the distance between the door operation device 1000 and the user terminal 2000 based on a received signal strength indication (RSSI).

[0161] For example, the user terminal 2000 may acquire the RSSI based on an advertisement packet transmitted from the door operation device 1000. Furthermore, information regarding the distance between the door operation device 1000 and the user terminal 2000 may be acquired based on the acquired RSSI.

[0162] The user terminal 2000 may acquire a signal transmitted from a door operation device 1000 located within communication distance, and may determine the RSSI of the acquired signal transmitted from the door operation device 1000.

[0163] Furthermore, the user terminal 2000 may calculate the distance between the door operation device 1000 and the user terminal 2000 based on the RSSI of the signal transmitted from the door operation device 1000.

[0164] For example, when the RSSI of a signal transmitted from the door operation device 1000 is 10 dB, the user terminal 2000 may determine that the distance between the door operation device 1000 and the user terminal 2000 is 10 m.

[0165] According to one embodiment, a step of determining whether the distance between the door operating device 1000 and the user terminal 2000 is within a first distance D1 may be performed (S210).

[0166] The user terminal 2000 according to the embodiment may determine whether the distance between the door operation device 1000 and the user terminal 2000 obtained based on the RSSI is within a first distance D1.

[0167] For example, when the first distance D1 is 15 m and the distance between the door operation device 1000 and the user terminal 2000 is 10 m, the user terminal 2000 may determine that the door operation device 1000 is located within the first distance D1.

[0168] According to one embodiment, a step of transmitting connection authentication information may be performed (S115).

[0169] According to one embodiment, the user terminal 2000 may transmit connection authentication information to the door operation device 1000.

[0170] According to one embodiment, the user terminal 2000 may transmit connection authentication information to the door operation device 1000 in response to a request from the door operation device 1000 for transmission of the connection authentication information.

[0171] According to one embodiment, a step of establishing a communication connection may be performed (S120).

[0172] According to one embodiment, the user terminal 2000 may establish a communication connection with the door operation device 1000.

[0173] For example, a communication connection may be established between the terminal communication unit 2100 of the user terminal 2000 and the door communication unit 1100 of the door operation device 1000 .

[0174] According to one embodiment, the terminal communication unit 2100 of the user terminal 2000 and the door communication unit 1100 of the door operation device 1000 may be BLE communication modules, and the communication connection between the user terminal 2000 and the door operation device 1000 may be a BLE communication connection.

[0175] The user terminal 2000 may maintain communication with the door operation device 1000.

[0176] According to one embodiment, the user terminal 2000 may maintain communication until the distance between the door operation device 1000 and the user terminal 2000 exceeds a first distance D1.

[0177] According to one embodiment, a step of transmitting first opening authentication information may be performed (S125).

[0178] The opening authentication information may be information necessary to determine whether the user terminal 2000 and / or the user of the user terminal 2000 is a valid terminal and / or user authorized to open the door.

[0179] According to one embodiment, the open authentication information may include at least one of authentication information, user identification information, user terminal identification information, and a password.

[0180] The authentication information may be information regarding whether or not authority to open the door has been assigned.

[0181] The user identity may be an identity assigned to a user.

[0182] The user terminal identification information may be identification information assigned to the user terminal 2000. For example, the user terminal identification information may include an ID, a model name, a serial number, and a communication number assigned to the user terminal.

[0183] A password may be information that can be used to determine validity based on a match. For example, a password may be a key that includes at least one of numbers and letters. As another example, a password may be biometric information.

[0184] The open authentication information may include first open authentication information and second open authentication information.

[0185] The first opening authentication information may be at least a portion of the entire data packet of opening authentication information, and the second opening authentication information may be the remaining portion of the data packet excluding the first opening authentication information.

[0186] According to an embodiment, the size of the data packet of the first opening authentication information may be larger than the size of the data packet of the second opening authentication information.

[0187] In addition, the data packets included in the first opening authentication information may be different from the data packets included in the second opening authentication information.

[0188] Furthermore, depending on the selection, some of the data packets included in the first opening authentication information may be identical to some of the data packets included in the second opening authentication information.

[0189] Therefore, the data packets included in the first opening authentication may be at least partially different from the data packets included in the second opening authentication.

[0190] Although it has been described that the open authentication information includes the first open authentication information and the second open authentication information, the embodiment is not limited thereto. The first open authentication information and the second open authentication information may be subdivided. For example, the first open authentication information may be subdivided into 1-1th open authentication information and 1-2nd open authentication information, and the second open authentication information may be subdivided into 2-1th open authentication information and 2-2nd open authentication information.

[0191] Alternatively, the first opening credential may be data obtained by encrypting the open credential, and the second opening credential may be provided as an encryption key required to decode the first opening credential and obtain the open credential.

[0192] According to one embodiment, the user terminal 2000 may transmit the first opening authentication information to the door operation device 1000.

[0193] According to one embodiment, the user terminal 2000 may transmit the first opening authentication information to the door operation device 1000 based on a first opening authentication information request from the door operation device 1000.

[0194] According to one embodiment, the first open authentication information and the second open authentication information may be pre-stored in the user terminal 2000 separately.

[0195] The user terminal 2000 may transmit, to the door operation device 1000, first opening authentication information that is between the first opening authentication information and the second opening authentication information that are individually stored in advance.

[0196] Alternatively, according to one embodiment, the first open authentication information and the second open authentication information may be integrated into the open authentication information stored in the user terminal 2000.

[0197] The user terminal 2000 may obtain the first opening authentication information by separating the predetermined data packet from the opening authentication information, and may transmit the obtained first opening authentication information to the door operation device 1000.

[0198] Alternatively, the user terminal 2000 may obtain the first opening authentication information by separating a data packet of a predetermined size from the opening authentication information and may transmit the obtained first opening authentication information to the door operation device 1000.

[0199] According to one embodiment, a step of determining whether the distance to the door operating device 1000 is within a second distance D2 (S220) may be performed.

[0200] According to one embodiment, the user terminal 2000 may determine the distance between the door operation device 1000 and the user terminal 2000 based on the RSSI when acquiring a data packet from the door operation device 1000 using a communication connection established between the door operation device 1000 and the user terminal 2000.

[0201] According to an embodiment, the user terminal 2000 may determine whether the distance between the door operation device 1000 and the user terminal 2000 obtained based on the RSSI is within a second distance D2.

[0202] For example, when the second distance D2 is 1 m and the distance between the door operation device 1000 and the user terminal 2000 is 30 cm, the user terminal 2000 may determine that the door operation device 1000 is located within the second distance D2.

[0203] According to one embodiment, a step of transmitting second open authentication information may be performed (S140).

[0204] According to one embodiment, the user terminal 2000 may transmit second opening authentication information to the door operation device 1000.

[0205] According to one embodiment, the user terminal 2000 may transmit the second opening authentication information to the door operation device 1000 upon a request from the door operation device 1000 to transmit the second opening authentication information.

[0206] According to one embodiment, a step of determining validity may be performed (S180).

[0207] According to one embodiment, the door operation device 1000 may obtain opening authentication information based on first opening authentication information obtained at a first distance D1 between the door operation device 1000 and the user terminal 2000, and second opening authentication information obtained at a second distance D2 between the door operation device 1000 and the user terminal 2000.

[0208] According to one embodiment, the door operation device 1000 may obtain the opening authentication information by integrating the first opening authentication information and the second opening authentication information.

[0209] According to one embodiment, the door operating device 1000 may obtain the opening credential by decoding the first opening credential using the encryption key included in the second opening credential.

[0210] According to one embodiment, when the door operation device 1000 obtains the opening authentication information from the user terminal 2000, it may determine whether the opening authentication information is valid.

[0211] Determining whether the open authentication information is valid may include determining whether the open authentication information itself is valid, determining whether the user is valid based on the open authentication information, and determining whether the user terminal 2000 is valid based on the open authentication information.

[0212] According to one embodiment, determining validity may be the action of determining whether or not to open the door.

[0213] The door operation device 1000 may determine validity based on the opening authentication information.

[0214] The door operation device 1000 may determine validity based on at least one of the authentication information, the user identification information, the user terminal identification information, and the password included in the opening authentication information.

[0215] According to one embodiment, the door operation device 1000 may determine that the opening credentials are valid when the credentials include information indicating that authority to open the door has been assigned.

[0216] According to one embodiment, the door operation device 1000 may determine that the opening authentication information is valid when the user identification information and / or user terminal identification information matches previously registered user identification information and / or user terminal identification information.

[0217] According to one embodiment, the door operation device 1000 may determine that the opening credential is valid when it is determined that the password included in the opening credential matches a pre-stored password.

[0218] Alternatively, according to one embodiment, the door operation device 1000 may determine validity based on at least one of the user identification information, the user terminal identification information, and the password, and may determine whether to open the door by determining whether the authority to open the door is assigned based on the authentication information.

[0219] For example, when the opening authentication information is valid as a result of determining the validity based on at least one of the user identification information, the user terminal identification information, and the password, the door operation device 1000 may determine whether to control the opening of the door by further considering the authentication information included in the opening authentication information. The door operation device 1000 may decide to open the door as soon as it determines that the authentication information includes the authority to open the door.

[0220] According to one embodiment, a step of opening the door may be performed (S190).

[0221] According to one embodiment, the door operation device 1000 may execute a control action to open the door when the opening authentication information is valid as an authentication result.

[0222] According to one embodiment, the door operation device 1000 may execute a control action to open the door when the opening authentication information is valid as an authentication result and authority to open the door is assigned.

[0223] When the opening authentication information is valid as the authentication result, the door operation device 1000 may provide power through the door drive unit so that the door is unlocked.

[0224] FIG. 8 is a flow chart illustrating a door operation method according to yet another exemplary embodiment.

[0225] Referring to FIG. 8, the door operation method may include a step (S100) of obtaining information regarding the distance to the user terminal 2000, a step (S110) of determining whether the distance is within D1, a step (S120) of requesting connection authentication information, a step (S130) of transmitting the connection authentication information, a step (S140) of establishing a communication connection, a step (S170) of transmitting opening authentication information, a step (S180) of determining validity, a step (S300) of registering an opening target, a step (S250) of determining whether the distance is within D2, a step (S310) of transmitting opening request information, a step (S320) of determining whether the target is an opening target, and a step (S190) of opening the door.

[0226] According to one embodiment, a step of obtaining information regarding the distance to a user terminal may be performed (S100).

[0227] The door operation device 1000 may obtain information regarding the distance between the door operation device 1000 and the user terminal 2000.

[0228] According to one embodiment, the door operation device 1000 may obtain information regarding the distance between the door operation device 1000 and the user terminal 2000 based on a received signal strength indicator (RSSI).

[0229] For example, the door operation device 1000 may acquire the RSSI based on an advertisement packet transmitted from the user terminal 2000. Furthermore, the door operation device 1000 may acquire information regarding the distance between the door operation device 1000 and the user terminal 2000 based on the acquired RSSI.

[0230] The door operation device 1000 may acquire a signal transmitted from a user terminal 2000 located within communication distance, and may determine the RSSI of the acquired signal transmitted from the user terminal 2000.

[0231] In addition, the door operation device 1000 may calculate the distance 2000 between the door operation device and the user terminal based on the RSSI of the signal transmitted from the user terminal 2000.

[0232] For example, when the RSSI of a signal transmitted from the user terminal 2000 is 10 dB, the door operation device 1000 may determine that the distance between the door operation device 1000 and the user terminal 2000 is 10 m.

[0233] According to one embodiment, a step of determining whether the distance to the user terminal 2000 is within a first distance D1 may be performed (S110).

[0234] The door operation device 1000 according to the embodiment may determine whether the distance between the door operation device 1000 and the user terminal 2000 obtained based on the RSSI is within a first distance D1.

[0235] For example, when the first distance D1 is 15 m and the distance between the door operation device 1000 and the user terminal 2000 is 10 m, the door operation device 1000 may determine that the user terminal 2000 is located within the first distance D1.

[0236] According to one embodiment, a step of requesting connection authentication information may be performed (S120).

[0237] According to one embodiment, when the user terminal 2000 is located within the first distance D1, the door operation device 1000 may request connection authentication information from the user terminal 2000.

[0238] The connection authentication information may be information necessary for the door operation device 1000 and the user terminal 2000 to establish a communication connection.

[0239] For example, the connection authentication information may be information necessary for a communication connection, such as a communication ID, an encryption key, and a MAC address.

[0240] According to one embodiment, a step of transmitting connection authentication information may be performed (S130).

[0241] According to one embodiment, the user terminal 2000 may transmit connection authentication information to the door operation device 1000.

[0242] According to one embodiment, the user terminal 2000 may transmit connection authentication information to the door operation device 1000 in response to a request from the door operation device 1000 for transmission of the connection authentication information.

[0243] According to one embodiment, a step of establishing a communication connection may be performed (S140).

[0244] According to one embodiment, the door operation device 1000 may establish a communication connection with a user terminal 2000.

[0245] For example, a communication connection may be established between the door communication unit 1100 of the door operation device 1000 and the terminal communication unit 2100 of the user terminal 2000.

[0246] According to one embodiment, the door communication unit 1100 of the door operation device 1000 and the terminal communication unit 2100 of the user terminal 2000 may be BLE communication modules, and the communication connection between the door operation device 1000 and the user terminal 2000 may be a BLE communication connection.

[0247] The door operation device 1000 may maintain communication with a user terminal 2000.

[0248] According to one embodiment, the door operation device 1000 may maintain communication until the user terminal 2000 moves outside the first area A1.

[0249] According to one embodiment, a step of transmitting opening authentication information may be performed (S170).

[0250] According to one embodiment, the user terminal 2000 may transmit opening authentication information to the door operation device 1000.

[0251] According to one embodiment, the user terminal 2000 may transmit the opening authentication information to the door operation device 1000 upon a request from the door operation device 1000 to transmit the opening authentication information.

[0252] According to one embodiment, the user terminal 2000 may transmit opening authentication information to the door operation device 1000.

[0253] According to one embodiment, when a communication connection is established between the door operation device 1000 and the user terminal 2000, the user terminal 2000 may send opening authentication information to the door operation device 1000.

[0254] According to one embodiment, a step of determining validity may be performed (S180).

[0255] According to one embodiment, when the door operation device 1000 obtains the opening authentication information from the user terminal 2000, it may determine whether the opening authentication information is valid.

[0256] Determining whether the open authentication information is valid may include determining whether the open authentication information itself is valid, determining whether the user is valid based on the open authentication information, and determining whether the user terminal 2000 is valid based on the open authentication information.

[0257] According to one embodiment, determining validity may be the action of determining whether or not to open the door.

[0258] The door operation device 1000 may determine validity based on the opening authentication information.

[0259] The door operation device 1000 may determine validity based on at least one of the authentication information, the user identification information, the user terminal identification information, and the password included in the opening authentication information.

[0260] According to one embodiment, the door operation device 1000 may determine that the opening credentials are valid when the credentials include information indicating that authority to open the door has been assigned.

[0261] According to one embodiment, the door operation device 1000 may determine that the opening authentication information is valid when the user identification information and / or user terminal identification information matches pre-registered user identification information and / or user terminal identification information.

[0262] According to one embodiment, the door operation device 1000 may determine that the opening credential is valid when it is determined that the password included in the opening credential matches a pre-stored password.

[0263] According to one embodiment, a step of registering an object to be released may be performed (S300).

[0264] According to one embodiment, when the determination results in the opening authentication information being valid, the door operation device 1000 may register the opening target.

[0265] For example, when the opening authentication information is valid as a result of the determination, the door operation device 1000 may register at least one of the user identification information and the user terminal identification information included in the opening authentication information as an object to be opened.

[0266] As another example, when the determination results in the opening authentication information being valid, the door operation device 1000 may set the status of the user identification information and / or user terminal identification information included in the opening authentication information as an opening target in a predetermined access target list.

[0267] According to one embodiment, a step of determining whether the distance to the user terminal 2000 is within a second distance D2 may be performed (S250).

[0268] According to one embodiment, the door operation device 1000 may determine the distance between the door operation device 1000 and the user terminal 2000 based on the RSSI when acquiring a data packet from the user terminal 2000 using a communication connection established between the door operation device 1000 and the user terminal 2000.

[0269] The door operation device 1000 according to the embodiment may determine whether the distance between the door operation device 1000 and the user terminal 2000 obtained based on the RSSI is within a second distance D2.

[0270] For example, when the second distance D2 is 1 m and the distance between the door operation device 1000 and the user terminal 2000 is 30 cm, the door operation device 1000 may determine that the user terminal 2000 is located within the second distance D2.

[0271] According to one embodiment, a step of transmitting release request information may be performed (S310).

[0272] According to one embodiment, the user terminal 2000 may transmit the opening request information upon request from the door operation device 1000.

[0273] According to one embodiment, when the distance between the door operation device 1000 and the user terminal 2000 is within the second distance D2, the user terminal 2000 may transmit opening request information to the door operation device 1000.

[0274] The opening request information may be information for requesting the door operation device 1000 to open the door.

[0275] According to one embodiment, a step of determining whether the object is an open object (S320) may be performed.

[0276] The door operation device 1000 may determine whether the user terminal 2000 that transmitted the opening request information and / or the user of the user terminal 2000 are targets for opening.

[0277] The door operation device 1000 can determine whether or not the user terminal 2000 that transmitted the opening request information and / or the user of the user terminal 2000 are included in advance as targets for opening.

[0278] The door operation device 1000 can determine whether or not the user terminal 2000 that transmitted the opening request information and / or the user of the user terminal 2000 has been registered as an opening target by the operation S300 of registering an opening target.

[0279] According to one embodiment, a step of opening the door may be performed (S190).

[0280] When the user terminal and / or the user of the user terminal is the target for opening as a result of the determination, the door operation device 1000 may execute a control action to open the door.

[0281] When the user terminal and / or the user of the user terminal is to be opened as a result of the determination, the door operation device 1000 may provide power through the door drive unit so that the door is unlocked.

[0282] FIG. 9 is an exemplary diagram illustrating changing a variable area according to an exemplary embodiment of the present invention.

[0283] In the various embodiments described above, the first distance D1 and the second distance D2 may be variable.

[0284] In distance measurement using RSSI, even if the signal strength is the same as in the radio wave environment, the distance may change depending on the communication environment including the humidity of the atmosphere.

[0285] For example, when distance measurement is performed using RSSI, 10 dB may be measured at a distance of 10 m in area A, while 8 dB may be measured at a distance of 10 m in area B, depending on the environment.

[0286] Accordingly, different distances may actually be obtained with the same signal strength, depending on the communication environment.

[0287] Since the communication environment may be changed by various parameters, errors may occur in distance measurement based on the initially set signal strength.

[0288] For example, when 10 dB is first measured at a distance of 10 m and therefore 10 dB is set as the reference for the first distance D1 to set the first distance D1 to 10 m, 8 m may actually be provided as the first distance D1 depending on the environment.

[0289] To address this issue, the reference RSSI for determining whether or not to establish a communication connection with the door operation device 1000 and / or the user terminal 2000, and the area in which the opening authentication information is transmitted may be changed.

[0290] The door operation device 1000 may store the RSSI obtained within the second distance D2 where the opening authentication information and / or the opening request information according to some embodiments was initially set.

[0291] According to one embodiment, the door operation device 1000 may acquire and store the RSSI at which the opening authentication information request is acquired from the user terminal 2000.

[0292] According to one embodiment, the door operation device 1000 may acquire and store the RSSI of the signal received from the user terminal 2000 when the door operation device 1000 determines that the distance between the door operation device 1000 and the user terminal 2000 is within a second distance D2.

[0293] In addition, the door operation device 1000 may obtain the maximum RSSI among the stored RSSIs.

[0294] The door operation device 1000 may change the criteria for the second area A2 based on the maximum RSSI.

[0295] According to one embodiment, the door operating device may set an RSSI that differs from the maximum RSSI by a predetermined signal strength value as a criterion for the second area A2.

[0296] 9, when the first maximum RSSI max0 obtained at the first time is −50 dB, the door operation device 1000 may set the reference of the second area A2 to the first RSSI thr1. When the second maximum RSSI max1 obtained at the second time is −52 dB, the door operation device 1000 may set the reference of the second area A2 to the second RSSI thr2.

[0297] Although the door operation device 1000 is described as storing the opening authentication information and / or the RSSI at which the opening authentication information is obtained, obtaining a maximum RSSI among the stored RSSIs, and changing the criteria for the second area A2 based on the obtained maximum RSSI, the embodiment is not limited thereto. In one embodiment, the user terminal 2000 may change the criteria for the second area A2.

[0298] According to one embodiment, the user terminal 2000 may store the RSSI obtained within the second distance D2 where the open authentication information according to some embodiments was initially set.

[0299] According to one embodiment, the user terminal 2000 may store the RSSI of the signal obtained from the door operation device 1000 when it is determined that the distance between the door operation device 1000 and the user terminal 2000 is within the second distance D2.

[0300] The user terminal 2000 may store the RSSI obtained within the second distance D2 where the open authentication information request according to some embodiments was initially set.

[0301] In addition, the user terminal 2000 may obtain the maximum RSSI among the stored RSSIs.

[0302] The user terminal 2000 may change the criteria for the second area A2 based on the maximum RSSI.

[0303] Although the present invention has been described in connection with the exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications can be made to the exemplary embodiments of the present invention described above without departing from the spirit or scope of the present invention. Therefore, it is intended that the present invention cover all such modifications, provided that such modifications fall within the scope of the appended claims and their equivalents.

Claims

1. 1. An access control method for a door operating device communicating with a user terminal, comprising: obtaining first opening authentication information when a distance between the door operation device and the user terminal is within a first distance; obtaining second opening authentication information when the distance between the door operation device and the user terminal is within a second distance; determining whether to open a door based on opening authentication information including the first opening authentication information and the second opening authentication information when the distance between the door operating device and the user terminal is within a second distance; Equipped with the first opening authentication information and the second opening authentication information are used as part of the opening authentication information in the step of determining whether to open the door; When the distance between the door operation device and the user terminal is within a second distance, the first opening authentication information is used in determining whether to open the door; The access control method, wherein the first open authentication information and the second open authentication information are different from each other.

2. The method of claim 1 , wherein the second distance is less than the first distance.

3. determining the distance between the door operating device and the user terminal based on at least one of a transmission signal from the door operating device or the user terminal; The access control method according to claim 1 or 2, further comprising:

4. The step of determining the distance between the door operating device and the user terminal further comprises:

4. The method of claim 3, further comprising determining the distance between the door operating device and the user terminal based on a received signal strength corresponding to the transmitted signal from at least one of the door operating device and the user terminal.

5. establishing a communication connection between the door operating device and the user terminal when the distance between the door operating device and the user terminal is within the first distance; The access control method according to claim 1 or 2, further comprising:

6. The step of establishing the communication connection further comprises: obtaining connection authentication information from the user terminal when the door operation device requests the connection authentication information; establishing the communication connection between the door operation device and the user terminal based on the connection authentication information; The access control method according to claim 5 , comprising:

7. The access control method according to claim 5 or 6, wherein the communication connection between the door operation device and the user terminal is at least one of a Bluetooth (registered trademark) communication connection, a Wi-Fi (registered trademark) communication connection, and a BLE communication connection.

8. When the distance between the door operation device and the user terminal is within the second distance, the step of obtaining the second opening authentication information includes: The access control method according to claim 1 , further comprising the step of requesting the second open authentication information from the user terminal and obtaining the second open authentication information in response to the request.

9. The access control method according to claim 1 , wherein the open authentication information includes at least one of authentication information, user identification information, user terminal identification information, and a password.

10. The method of claim 9 , wherein the authentication information includes information regarding whether at least one of the user terminal and the user is authorized to open the door.

11. adjusting a reference RSSI (Received Signal Strength Indicator) used to determine the second distance based on a maximum RSSI corresponding to the transmission signal when the transmission signal from the door operating device or the user terminal includes the opening authentication information. The access control method according to claim 1 , further comprising:

12. The step of adjusting the reference RSSI comprises:

12. The method of claim 11, further comprising setting the reference RSSI to differ from the maximum RSSI by a predetermined signal strength value.

13. The access control method according to any one of claims 1 to 12, wherein the first opening authentication information is data obtained by encrypting the open authentication information, and the second opening authentication information is provided as an encryption key required to decode the first opening authentication information and obtain the open authentication information.

14. 1. An access control method for a user terminal communicating with a door operation device, comprising: determining whether a distance between the door operation device and the user terminal is within a first distance based on a transmission signal from the door operation device; When the distance between the door operation device and the user terminal is within the first distance, sending first opening authentication information to the door operation device; determining whether the distance between the door operation device and the user terminal is within a second distance based on a transmission signal from the door operation device; sending the second opening authentication information to the door operation device to request opening of the door when the distance between the door operation device and the user terminal is within a second distance, such that the door operation device determines whether to open the door based on opening authentication information having the first opening authentication information and the second opening authentication information when the distance between the door operation device and the user terminal is within a second distance; Equipped with the first opening authentication information and the second opening authentication information are used as part of the opening authentication information to determine whether to open the door by the door operating device; the first opening authentication information is used by the door operating device to determine whether to open the door when the distance between the door operating device and the user terminal is within a second distance; The access control method, wherein the first open authentication information and the second open authentication information are different from each other.

15. establishing a communication connection between the door operating device and the user terminal when the distance between the door operating device and the user terminal is within the first distance; The access control method of claim 14 further comprising:

16. The step of determining whether the distance between the door operating device and the user terminal is within the second distance comprises: storing at least one received signal strength corresponding to the transmitted signal from the door operating device; adjusting a reference RSSI used to determine the second distance based on a maximum RSSI of the at least one stored received signal strength; 16. The access control method according to claim 14 or 15, comprising:

17. The step of adjusting the reference RSSI comprises:

17. The method of claim 16, further comprising setting the reference RSSI to differ from the maximum RSSI by a predetermined signal strength value.

18. The access control method according to any one of claims 14 to 17, wherein the first opening authentication information is data obtained by encrypting the opening authentication information, and the second opening authentication information is provided as an encryption key required to decode the first opening authentication information and obtain the opening authentication information.

19. A program for causing a computer to execute the access control method according to any one of claims 1 to 18.

20. A door operating device configured to communicate with a user terminal, A communication unit; When a distance between the door operation device and the user terminal is within a first distance, obtain first opening authentication information using the communication unit; When the distance between the door operation device and the user terminal is within a second distance, obtain second opening authentication information using the communication unit; When the distance between the door operating device and the user terminal is within a second distance, determine whether to open the door based on opening authentication information including the first opening authentication information and the second opening authentication information. A control unit configured to Equipped with the first opening authentication information and the second opening authentication information are used as part of the opening authentication information to determine whether to open the door; When the distance between the door operation device and the user terminal is within a second distance, the first opening authentication information is used in determining whether to open the door; A door operation device, wherein the first opening authentication information and the second opening authentication information are different from each other.

21. A user terminal configured to communicate with a door operating device, A communication unit; determining whether a distance between the door operation device and the user terminal is within a first distance based on a transmission signal from the door operation device; When the distance between the door operation device and the user terminal is within the first distance, using the communication unit to send first opening authentication information to the door operation device; determining whether the distance between the door operation device and the user terminal is within a second distance based on a transmission signal from the door operation device; When the distance between the door operation device and the user terminal is within a second distance, send the second opening authentication information to the door operation device to request opening of the door using the communication unit, so that the door operation device determines whether to open the door based on opening authentication information having the first opening authentication information and the second opening authentication information when the distance between the door operation device and the user terminal is within a second distance. A control unit configured to Equipped with the first opening authentication information and the second opening authentication information are used as part of the opening authentication information to determine whether to open the door by the door operating device; the first opening authentication information is used by the door operating device to determine whether to open the door when the distance between the door operating device and the user terminal is within a second distance; The first open authentication information and the second open authentication information are different from each other.

Images