KR102473189B1 - Access control method and access control device using the same - Google Patents

Abstract

According to an embodiment of the present invention, an access control method is an access control method of an access control device for controlling a communication connection with an external device based on RSSI of a signal received from the external device. Obtaining an RSSI of and deriving a communication connection between the access control device and the external device based on the obtained RSSI, wherein the obtaining of the RSSI of a signal received from the external device, Acquiring RSSI having a first strength at a first time point, and obtaining RSSI having a second strength at a second time point, wherein the step of inducing a communication connection between the access control device and the external device includes: , When the first time point is earlier than the second time point and the second intensity is determined to be greater than the first value, which is a predetermined value, the communication connection between the access control device and the external device is established. It is an inducing step.

Description

Access control method and access control device using the same {ACCESS CONTROL METHOD AND ACCESS CONTROL DEVICE USING THE SAME}

The present invention relates to an access control device and an access control method using the same.

In a technology for managing access to a building or a specific area, a technology for managing access by determining whether a door is opened by acquiring information stored in advance in a user terminal by an access control device is used.

In this technology, the user terminal has conventionally been implemented as a card key, etc., but recently, it has gradually expanded to a mobile terminal such as a smartphone carried by a user.

In access control using such a mobile terminal, it takes a lot of time for the access control device to acquire information necessary for determining whether or not to open the door from the mobile terminal compared to conventional card keys from connection of communication to determination after acquisition of data. Inconvenience occurred that the user feels a delay in the sensory sense.

An object of the present invention is to perform a communication connection in advance based on a predetermined value, and to obtain information necessary for opening at a closer distance, thereby improving the user's inconvenience according to the time required when the user requests to open the door. An apparatus and an access control method using the same are provided.

An access control method according to an embodiment is an access control method of an access control device that controls a communication connection with an external device based on the RSSI of a signal received from the external device, and obtains the RSSI of the signal received from the external device. and deriving a communication connection between the access control device and the external device based on the obtained RSSI, wherein the acquiring of the RSSI of the signal received from the external device includes, at a first time, Acquiring RSSI having a first strength, and obtaining RSSI having a second strength at a second time point, wherein the step of inducing a communication connection between the access control device and the external device comprises: Inducing a communication connection between the access control device and the external device when the time point is earlier than the second point in time and the second intensity is determined to be greater than a first value, which is a predetermined value, than the first intensity. can

An access control method according to an embodiment is an access control method of an access control device that controls a communication connection with an external device based on the RSSI of a signal received from the external device, and obtains the RSSI of the signal received from the external device. and deriving a communication connection between the access control device and the external device based on the obtained RSSI, wherein the acquiring of the RSSI of the signal received from the external device includes, at a first time, Acquiring RSSI having a first strength, and obtaining RSSI having a second strength at a second time point, wherein the step of inducing a communication connection between the access control device and the external device comprises: If the time point is earlier than the second point in time and the difference between the second intensity and the first point in time is determined to be greater than or equal to a first value, which is a predetermined value, It may be a step of inducing a communication connection between the access control device and the external device.

An access control device according to another embodiment is an access control device that controls a communication connection with an external device based on RSSI of a signal received from the external device, and includes a communication unit and a first control device according to a signal received from the external device. Obtain RSSI having a first intensity at a time point and RSSI having a second intensity at a second time point - the first time point is earlier than the second time point -, the second intensity is predetermined than the first intensity When it is determined that the value is greater than the first value, a control unit for inducing a communication connection between the access control device and the external device may be included.

An access control device according to another embodiment is an access control device that controls a communication connection with an external device based on RSSI of a signal received from the external device, and includes a communication unit and a first control device according to a signal received from the external device. Acquire RSSI having a first intensity at a time point and RSSI having a second intensity at a second time point - the first time point is earlier than the second time point -, the difference between the second intensity and the first intensity and a control unit for inducing a communication connection between the access control device and the external device when the first change amount divided by the difference between the second point in time and the first point in time is determined to be greater than a first value that is a predetermined value.

According to the present invention, it is possible to improve the user's inconvenience according to the time required when the user requests to open the door by performing a communication connection in advance based on a predetermined value and acquiring information necessary for opening at a closer distance.

1 is an environment diagram of an access control system according to an embodiment.
2 is a block diagram illustrating a user terminal according to an exemplary embodiment.
3 is a block diagram illustrating a door opening and closing device according to an exemplary embodiment.
4 is a block diagram illustrating an authentication server according to an exemplary embodiment.
5 is a flowchart illustrating a method of inducing a communication connection of a door opening and closing device according to an exemplary embodiment.
6 is a flowchart illustrating a method of opening and closing a door according to an exemplary embodiment.
7 to 11 are graphs showing RSSI of signals acquired from user terminals over time according to an embodiment.
12 is an environment diagram of an access control system according to another embodiment.
13 is a block diagram illustrating a sub-reader according to an exemplary embodiment.
14 is a flowchart illustrating a communication connection induction method according to another embodiment.
15 is a flowchart illustrating a communication connection induction method according to another embodiment.
16 is a flowchart illustrating a method of inducing a communication connection of a door opening and closing device according to another embodiment.
17 is a flowchart illustrating a method of opening and closing a door according to another embodiment.
18 to 22 are graphs showing RSSI of signals acquired from user terminals over time according to another embodiment.
23 is a flowchart illustrating a method for inducing a communication connection according to another embodiment.
24 is a flowchart illustrating a communication connection induction method according to another embodiment.

The embodiments described in this specification are intended to clearly explain the spirit of the present invention to those skilled in the art distribution to which the present invention belongs, so the present invention is not limited to the embodiments described in this specification, and the The scope should be construed to include modifications or variations that do not depart from the spirit of the invention.

The terms used in this specification have been selected as general terms that are currently widely used as much as possible in consideration of the functions in the present invention, but these may vary depending on the intention of those skilled in the art, precedents, or the emergence of new technologies to which the present invention belongs. can However, in the case where a specific term is defined and used in an arbitrary meaning, the meaning of the term will be separately described. Therefore, the terms used in this specification should be interpreted based on the actual meaning of the term and the overall content of this specification, not the simple name of the term.

The drawings accompanying this specification are intended to easily explain the present invention, and the shapes shown in the drawings may be exaggerated as necessary to aid understanding of the present invention, so the present invention is not limited by the drawings.

In this specification, if it is determined that a detailed description of a well-known configuration or function related to the present invention may obscure the gist of the present invention, detailed description thereof will be omitted if necessary.

According to an embodiment, an access management method of an access control device for controlling a communication connection with an external device based on the RSSI of a signal received from the external device, comprising: obtaining RSSI of a signal received from the external device; and deriving a communication connection between the access control device and the external device based on the obtained RSSI, wherein the acquiring of the RSSI of the signal received from the external device includes a first strength at a first time point. obtaining RSSI having a second strength, and acquiring RSSI having a second intensity at a second time point, and inducing a communication connection between the access control device and the external device, the first time point An access control method comprising inducing a communication connection between the access control device and the external device when it is earlier than the second point in time and the second intensity is determined to be greater than a first value, which is a predetermined value, than the first intensity. this can be provided.

Here, the obtaining of the RSSI of the signal received from the external device comprises: obtaining RSSI having a third strength at a third time point that exists between the first time point and the second time point; and and acquiring RSSI having a fourth strength at a fourth time point, which is a time point between the first time point and the second time point, and when a communication connection between the access control device and the external device is induced, the third time point The time point may be earlier than the fourth point in time, and the third intensity may be less than the fourth intensity.

Here, the first intensity may be greater than or equal to a first threshold value, which is a predetermined value.

Here, the second intensity may be greater than or equal to the first threshold value, which is a predetermined value.

Here, acquiring the RSSI of the signal received from the external device may include correcting the acquired RSSI in a preset manner.

Here, the step of inducing a communication connection between the access control device and the external device includes: the access control device requesting connection authentication information from the external device; and the access control device requesting connection authentication information from the external device. In the access control method, after the step of inducing a communication connection between the access control device and the external device, communication is established between the access control device and the external device based on the connection authentication information. Further steps may be included.

Here, the step of connecting the communication between the access control device and the external device based on the connection authentication information includes: acquiring open authentication information from the external device by the access control device; The step of inducing opening of the door by the access control device may be included.

Here, the open authentication information may include at least one of authentication information, user identification information, user terminal identification information, and a password.

Here, the communication connection between the access control device and the external device may be at least one of Bluetooth communication, Wi-Fi communication, and BLE communication.

Here, the step of transmitting the obtained RSSI by the access control device to the external device, and the step of inducing a communication connection between the access control device and the external device comprises: It may be performed in response to the determination of whether or not to induce a communication connection by an external device.

Here, the access control device includes a door reader and a sub-reader communicating with the external device in a second communication method different from the first communication method of the door reader, and acquiring RSSI of a signal received from the external device. may include obtaining, by the sub-reader, RSSI based on a signal received from the external device in the second communication method.

Here, the step of inducing a communication connection between the access control device and the external device may include determining whether or not to induce a communication connection based on the obtained RSSI by the sub-reader.

Here, the external device includes a door reader and a sub-reader that communicates with the access control device in a second communication method different from the first communication method of the door reader, and obtaining RSSI of a signal received from the external device. may include obtaining, by the access control device, RSSI based on a signal received from the sub-reader through the second communication method.

Here, the step of inducing a communication connection between the access control device and the external device may include determining whether the access control device should induce a communication connection based on the obtained RSSI.

According to another embodiment, an access management method of an access control device for controlling a communication connection with an external device based on the RSSI of a signal received from the external device, comprising the steps of: acquiring the RSSI of a signal received from the external device; and deriving a communication connection between the access control device and the external device based on the obtained RSSI, wherein the acquiring of the RSSI of the signal received from the external device comprises a first step at a first time point. Acquiring RSSI having a strength, and acquiring RSSI having a second strength at a second time, and inducing a communication connection between the access control device and the external device, the first time If the time is earlier than the second time and it is determined that the first variation obtained by dividing the difference between the second and first intensities by the difference between the second and first points in time is equal to or greater than a first value, which is a predetermined value, the entry/exit is determined. An access control method may be provided, which is a step of inducing a communication connection between a management device and the external device.

Here, the obtaining of the RSSI of the signal received from the external device comprises: obtaining RSSI having a third strength at a third time point that exists between the first time point and the second time point; and and acquiring RSSI having a fourth strength at a fourth time point, which is a time point between the first time point and the second time point, and when a communication connection between the access control device and the external device is induced, the third time point The time point may be earlier than the fourth point in time, and the third intensity may be less than the fourth intensity.

Here, in the step of inducing a communication connection between the access control device and the external device based on the obtained RSSI, when the second strength is not greater than a second value that is a predetermined value greater than the first strength, It may include not inducing the communication connection.

Here, the first intensity may be greater than or equal to a first threshold value, which is a predetermined value.

Here, the second intensity may be greater than or equal to the first threshold value, which is a predetermined value.

Here, acquiring the RSSI of the signal received from the external device may include correcting the acquired RSSI in a preset manner.

Here, the step of inducing a communication connection between the access control device and the external device includes: the access control device requesting connection authentication information from the external device; and the access control device requesting connection authentication information from the external device. and obtaining a communication connection between the access control device and the external device, further comprising connecting communication between the access control device and the external device based on the connection authentication information after the step of inducing a communication connection between the access control device and the external device. can

Here, the step of connecting the communication between the access control device and the external device based on the connection authentication information includes: acquiring open authentication information from the external device by the access control device; The access control device may include opening a door.

Here, the open authentication information may include at least one of authentication information, user identification information, user terminal identification information, and a password.

Here, the communication connection between the access control device and the external device may be at least one of Bluetooth communication, Wi-Fi communication, and BLE communication.

Here, the step of transmitting the obtained RSSI by the access control device to the external device, and the step of inducing a communication connection between the access control device and the external device comprises: It may be performed in response to the determination of whether or not to induce a communication connection by an external device.

Here, the access control device includes a door reader and a sub-reader communicating with the external device in a second communication method different from the first communication method of the door reader, and acquiring RSSI of a signal received from the external device. may include obtaining, by the sub-reader, RSSI based on a signal received from the external device in the second communication method.

Here, the step of inducing a communication connection between the access control device and the external device may include determining whether or not to induce a communication connection based on the obtained RSSI by the sub-reader.

Here, the external device includes a door reader and a sub-reader that communicates with the access control device in a second communication method different from the first communication method of the door reader, and obtaining RSSI of a signal received from the external device. may include obtaining, by the access control device, RSSI based on a signal received from the sub-reader through the second communication method.

Here, the step of inducing a communication connection between the access control device and the external device may include determining whether the access control device should induce a communication connection based on the obtained RSSI.

According to another embodiment, an access management device for controlling a communication connection with an external device based on RSSI of a signal received from the external device, wherein a communication unit and a signal received from the external device are used at a first time point. Acquire RSSI having a first intensity and RSSI having a second intensity at a second time point - the first time point is a time point earlier than the second time point -, wherein the second intensity is a predetermined value than the first time point If it is determined that the value is greater than 1, an access control device including a control unit inducing a communication connection between the access control device and the external device may be provided.

According to another embodiment, an access management device for controlling a communication connection with an external device based on RSSI of a signal received from the external device, wherein a communication unit and a signal received from the external device are used at a first time point. Acquire RSSI having a first intensity and RSSI having a second intensity at a second time point - the first time point is a time point earlier than the second time point -, and the difference between the second intensity and the first intensity is calculated as When the first change amount divided by the difference between the two points in time and the first point in time is determined to be greater than the first value, which is a predetermined value, an access control device including a control unit inducing a communication connection between the access control device and the external device is provided. It can be.

According to an embodiment, the external device may be a user terminal, and the access management device may be a door opening and closing device.

According to another embodiment, the external device may be a door opening/closing device, and the access management device may be a user terminal.

Hereinafter, an access control method and an access control device using the same according to an embodiment of the present application will be described.

1 is an environment diagram of an access control system 10000 according to an embodiment.

Referring to FIG. 1 , an access management system 10000 according to an embodiment may include a user terminal 1000, a door opening/closing device 2000, and an authentication server 3000.

According to an embodiment, the user terminal 1000 may be connected to the door opening and closing device 2000.

Also, the user terminal 1000 may transmit a communication signal to the door opening/closing device 2000 .

Also, the user terminal 1000 may communicate with the door opening and closing device 2000 by transmitting connection authentication information to the door opening and closing device 2000 .

In addition, the user terminal 1000 may transmit open authentication information to the door opening and closing device 2000 to request opening of the door.

In addition, the user terminal 1000 may transmit open authentication information to the door opening and closing device 2000 to determine validity, and transmit open request information to request opening of the door.

According to an embodiment, the door opening and closing device 2000 may be connected to the user terminal 1000 .

Also, the door opening and closing device 2000 may receive a signal from the user terminal 1000 and obtain RSSI of the received signal.

In addition, the door opening and closing device 2000 may obtain open authentication information from the user terminal 1000 and determine validity based on the obtained open authentication information. The door opening and closing device 2000 may determine whether to open the door based on the validity determination result.

According to an embodiment, the authentication server 3000 may be connected to the user terminal 1000 . Also, the authentication server 3000 may be connected to the door opening and closing device 2000 .

According to an embodiment, the authentication server 3000 may be connected to both the user terminal 1000 and the door opening/closing device 2000.

The authentication server 3000 may provide opening authentication information transmitted from the user terminal 1000 to the door opening/closing device 2000 to request door opening.

The authentication server 3000 may receive a request for issuance of open authentication information from the user terminal 1000 .

In addition, the authentication server 3000 may acquire information necessary for determining whether the user terminal 1000 is a valid user and/or user terminal 1000 while receiving a request for issuance of open authentication information from the user terminal 1000, and as a result of the determination, a valid user and/or user terminal 1000. Alternatively, in the case of the user terminal 1000, open authentication information may be issued to the user terminal 1000.

2 is a block diagram illustrating a user terminal according to an exemplary embodiment.

Referring to FIG. 2 , a user terminal 1000 may include a terminal communication unit 1010, a terminal display unit 1020, a terminal input unit 1030, a terminal storage unit 1040, and a terminal control unit 1050.

The terminal communication unit 1010 may connect the user terminal 1000 to an external electronic device. For example, the terminal communication unit 1010 may connect the user terminal 1000 to external electronic devices such as the door opening/closing device 2000 and the authentication server 3000 . Also, the terminal communication unit 1010 may be a communication module supporting wired and/or wireless communication.

The terminal display unit 1020 may output visual information.

When the terminal display unit 1020 is provided as a touch screen, the terminal display unit 1020 may perform the function of the terminal input unit 1030. In this case, a separate terminal input unit 1030 may not be provided according to selection, and a terminal input unit 1030 performing limited functions such as volume control, power button, and home button may be provided.

The terminal input unit 1030 may obtain a signal corresponding to a user's input.

The terminal input unit 1030 may be implemented as, for example, a keyboard, a keypad, a button, a jog shuttle, and a wheel.

Also, the user's input may be, for example, button press, touch, and drag.

When the terminal display unit 1020 is implemented as a touch screen, the terminal display unit 1020 may serve as a terminal input unit 1030 .

The terminal storage unit 1040 may store data.

The terminal storage unit 1040 may be implemented with, for example, flash memory, RAM, ROM, SSD, SD CARD, and optical disk.

The terminal storage unit 1040 may store data required for operation of the user terminal 1000 .

The terminal controller 1050 may oversee operations of the user terminal 1000 .

3 is a block diagram illustrating a door opening and closing device according to an exemplary embodiment.

Referring to FIG. 3 , the door opening and closing device 2000 includes a door communication unit 2010, a door display unit 2020, a door audio output unit 2030, a door sensor unit 2040, a door driving unit 2050, and a door driving unit 2060. ) and a door control unit 2070.

The door communication unit 2010 may be a communication module capable of acquiring data from the user terminal 1000 .

The door communication unit 2010 according to some embodiments of the present invention obtains data from the user terminal 1000 through communication methods such as Bluetooth, Zigbee, Bluetooth Low Energy (BLE), and RFID. can do.

According to an embodiment, the door communication unit 2010 may obtain corrected RSSI from the user terminal 1000 through a low-pass filter or a Schmitt trigger.

Also, according to an embodiment, the door communication unit 2010 may obtain RSSI from the user terminal 1000 and then correct the RSSI obtained from the user terminal 1000 through a low-pass filter or a Schmitt trigger. .

The door display unit 2020 may output visual information.

The door display unit 2020 may output information to visually provide to the user. When the door display unit 2020 includes a touch panel, the door display unit 2020 may operate as an input device based on touch input.

The door audio output unit 2030 may output information to be provided to the user aurally.

For example, the door audio output unit 2030 may be a speaker and a buzzer that output sound.

The door sensor unit 2040 may obtain a signal about the open state of the door. Alternatively, the door sensor unit 2040 may obtain a signal necessary for determining the state of the door.

The door sensor unit 2040 may obtain a signal of an external environment required for the door opening and closing device 2000 . For example, the door sensor unit 2040 may obtain a signal about a distance between a user and an object. For another example, the door sensor unit 2040 may obtain a signal necessary for determining the position of a door leaf.

The door driver 2050 may provide power necessary for locking or unlocking the door leaf provided to the door. In addition, the door driving unit 2050 may provide power required to open or close the door when the door is implemented as an automatic door.

The door driver 2060 may store a program for performing a control operation of the door controller 2070, and may store data received from the outside and data generated from the door controller 2070.

The door controller 2070 controls overall operations of the door opening and closing device 2000 .

4 is a block diagram illustrating an authentication server according to an exemplary embodiment.

Referring to FIG. 4 , the authentication server 3000 may include a server communication unit 3010, a server display unit 3020, a server input unit 3030, a server storage unit 3040, and a server control unit 3050.

The server communication unit 3010 may connect the authentication server 3000 and external electronic devices. That is, the server communication unit 3010 may transmit/receive data with an external electronic device. Also, the server communication unit 3010 may maintain or disconnect a communication connection with the user terminal 1000 as needed. In addition, the server communication unit 3010 may be provided to constantly maintain a connection with the user terminal 1000 according to an embodiment.

In addition, the server communication unit 3010 may be a communication module supporting at least one communication method among a wired communication method and a wireless communication method.

The server display unit 3020 may output visual information.

For example, the server display unit 3020 may be an LCD, OLED, or AMOLED display.

The server input unit 3030 may obtain an electrical signal corresponding to a user input. For example, the server input unit 3030 may include a keypad, keyboard, switch, button, and touch screen.

The server storage unit 3040 may store data.

For example, the server storage unit 3040 may store data acquired from the user terminal 1000 . For another example, the server storage unit 3040 may store programs necessary for the operation of the authentication server 3000 .

The server controller 3050 may oversee the operation of the authentication server 3000 .

The authentication server 3000 of the present invention does not necessarily have to include all of the above-described components, and may be provided in a form excluding some components depending on selection. For example, when the authentication server 3000 does not directly provide visual information, the authentication server 3000 may be provided in a form in which the server display unit 3020 is excluded. In addition, the authentication server 3000 may be provided in a form in which a configuration for performing additional functions and operations is added according to selection.

5 is a flowchart illustrating a method of inducing a communication connection of a door opening and closing device according to an exemplary embodiment.

Referring to FIG. 5 , a method for inducing a communication connection of a door opening and closing device 2000 according to an embodiment includes obtaining RSSI (received signal strength) of a first strength at a first point in time from a user terminal 1000 (S110). Acquiring RSSI of the second intensity at a second time point from the terminal 1000 (S120), obtaining a difference between the first intensity and the second intensity (S130), and the difference between the first intensity and the second intensity is Determining whether the value is greater than or equal to 1 (S140), inducing a communication connection between the user terminal 1000 and the door opening/closing device 2000 (S150), obtaining RSSI of a third strength at a third time point Step (S160), determining whether the third intensity is greater than or equal to the second intensity (S170), replacing the third point in time with the second point in time, and replacing the third point in time with the second intensity (S180); It may include replacing the third viewpoint with the first viewpoint and replacing the third intensity with the first intensity (S190) and resetting the second viewpoint and the second intensity (S195).

According to an embodiment, a step in which the door opening and closing device 2000 obtains the RSSI of the first intensity from the user terminal 1000 at a first time point may be performed (S110).

Also, according to an embodiment, a step of obtaining RSSI of the second intensity from the user terminal 1000 by the door opening and closing device 2000 at a second time point may be performed (S120).

The door opening and closing device 2000 may obtain information about the signal strength (RSSI) received from the user terminal 1000 .

For example, the door opening and closing device 2000 may obtain received signal strength based on an advertise packet sent by the user terminal 1000 .

The door opening/closing device 2000 may obtain a signal transmitted by the user terminal 1000 located within a communication range, and may determine received signal strength of the signal transmitted by the user terminal 1000 obtained.

Also, the door opening and closing device 2000 may calculate the distance to the user terminal 1000 based on the received signal strength of the signal transmitted by the user terminal 1000 .

For example, the door opening and closing device 2000 may determine that the distance from the user terminal 1000 is 10 m when the received signal strength of the signal transmitted by the user terminal 1000 is 10 dB.

In addition, the received signal strength may be obtained based on different data according to communication connection conditions.

For example, before mutual communication connection between the door opening and closing device 2000 and the user terminal 1000, the door opening and closing device 2000 may acquire received signal strength based on an advertise packet sent by the user terminal 1000.

According to an embodiment, the step of obtaining, by the door opening and closing device 2000, a difference between the first intensity and the second intensity based on the first intensity RSSI obtained at a first time point and the second intensity RSSI obtained at a second time point. may be performed (S130).

For example, the difference between the first intensity and the second intensity may be an absolute value obtained by subtracting the second intensity from the first intensity. Alternatively, for example, the difference between the first intensity and the second intensity may be a value obtained by subtracting the smaller value from the larger value.

According to an embodiment, a step of determining whether the difference between the first intensity and the second intensity is greater than or equal to the first value may be performed by the door opening and closing device 2000 (S140).

According to one embodiment, the first value may be a predetermined value. For example, the first value may be 10 dB.

According to an embodiment, the door opening and closing device 2000 detects the user terminal 1000 at a second time when the difference between the first and second strengths, which are RSSI obtained from the user terminal 1000, is greater than or equal to the first value. A communication connection with may be induced (S150).

Induction of a communication connection between the user terminal 1000 and the door opening/closing device 2000 may be when the door opening/closing device 2000 requests connection authentication information from the user terminal 1000 . Alternatively, the door opening/closing device 2000 may request open authentication information from the user terminal 1000 .

According to an embodiment, the door opening and closing device 2000 detects the first and second RSSI obtained from the user terminal 1000 when the difference between the first and second strengths is less than the first value, and the second time from the user terminal 1000. A step of obtaining RSSI of 3 intensities may be performed (S160).

In this case, the third time point may be later than the first time point and the second time point.

According to an embodiment, the door opening and closing device 2000 may determine whether the third intensity is greater than or equal to the second intensity (S170).

If the third intensity is greater than or equal to the second intensity, it may be an increasing function when the RSSI obtained from the user terminal 1000 is viewed as a graph over time. At this time, the door opening and closing device 2000 may determine that the user terminal 1000 is approaching the door opening and closing device 2000. Alternatively, the door opening and closing device 2000 may determine that the distance between the user terminal 1000 and the door opening and closing device 2000 is decreasing.

If the third intensity is smaller than the second intensity, it may be a function that decreases when the RSSI obtained from the user terminal 1000 is viewed as a graph over time. At this time, the door opening and closing device 2000 may determine that the user terminal 1000 is moving away from the door opening and closing device 2000. Alternatively, the door opening and closing device 2000 may determine that the distance between the user terminal 1000 and the door opening and closing device 2000 is increasing.

When the third intensity is less than the second intensity, the door opening/closing device 2000 may determine that the user terminal 1000 is moving away from the door opening/closing device 2000, so that the first intensity based on the first time point It is possible to obtain the difference between the third intensity and the RSSI intensity of the time points after the third point based on the third point in time without acquiring the difference between the second intensity and the third point in time. The step of acquiring the second viewpoint may be performed so that the operation according to FIG. 5 proceeds with the third viewpoint as the first viewpoint. Specifically, it will be described in detail in steps S190 and S195 below.

According to an embodiment, when the third intensity is greater than or equal to the second intensity, the door opening and closing device 2000 may set the third point of view as the second point of view so that the operation according to FIG. 5 proceeds. For example, when the third intensity is greater than or equal to the second intensity, the door opening and closing device 2000 performs a step of replacing the third point in time with the second point in time and the third point in time with the second intensity. It can be (S180).

The door opening and closing device 2000 replaces the third point in time with the second point in time and the third intensity with the second intensity, so that the first point is returned to the first point based on the replaced second point in time and the second intensity and the first point in time and the first intensity. A step of obtaining a difference between the intensity and the second intensity (S130) may be performed.

The meaning of the substitution is to determine what values to calculate the 'first strength' and 'second strength' for which the difference is obtained in step S140 when the communication connection induction (S150) is performed through comparison with the first value. It may mean 'setting change' in the door opening and closing device 2000.

Alternatively, the meaning of the substitution may be a generally used meaning of substitution. For example, any one value among at least one of values of 'first time point', 'first intensity', 'second intensity point', and 'second intensity' stored to be used to obtain a difference in step S140. It can mean 'save in memory' by deleting and replacing it with another value. As another example, when the second time point is b, the second intensity is B, the third time point is c, and the third intensity is C, it may mean changing the values of b to c and B to C. Specifically, it may mean deleting the values of the second point in time and the second intensity, and inputting the values of the third point in time and the third intensity to the deleted part. Additionally, the third time point and third intensity after substitution may be deleted.

The door opening and closing device 2000 replaces the third viewpoint with the second viewpoint and the third intensity with the second intensity, then obtains a difference between the first intensity and the second intensity (S130), and then returns the first intensity to the second intensity. Determining whether the difference in intensity is greater than or equal to the first value (S140) may be performed.

According to an embodiment, when the third intensity is less than the second intensity, the door opening and closing device 2000 may perform a step of replacing the third point in time with the first point in time and the third point in time with the first point in time (S190). ).

The meaning of the substitution is to determine what values to calculate the 'first strength' and 'second strength' for which the difference is obtained in step S140 when the communication connection induction (S150) is performed through comparison with the first value. It may mean 'setting change' in the door opening and closing device 2000.

Alternatively, the meaning of the substitution may be a generally used meaning of substitution. For example, any one value among at least one of values of 'first time point', 'first intensity', 'second intensity point', and 'second intensity' stored to be used to obtain a difference in step S140. It can mean 'save in memory' by deleting and replacing it with another value. As another example, when the first time point is a, the first intensity is A, the third time point is c, and the third intensity is C, it may mean changing the values of a to c and A to C. Specifically, it may mean deleting the values of the first time point and the first intensity, and inputting the values of the third time point and the third intensity to the deleted parts. Additionally, the third time point and third intensity after substitution may be deleted.

According to an embodiment, the door opening and closing device 2000 may perform a step of resetting the second time point and the second intensity (S195).

Regarding the meaning of the reset, the value of the second point in time and the second intensity may be deleted. Alternatively, not only the values of the second time point and the second intensity, but also the terms of the second time point and the second intensity may be deleted together.

After the second time point and the second intensity are reset, the door opening/closing device 2000 obtains RSSI of the second intensity at the second time point (S120).

The process of the door opening/closing device 2000 receiving RSSI from the user terminal 1000 and obtaining a difference in RSSI values based on the received RSSI has been described as 'replacing a value' or 'resetting a value', but this Not limited. A process in which the door opening and closing device 2000 receives RSSI and obtains a difference between RSSI values may be continuously performed over time. The door opening/closing device 2000 obtains the N-th time point and the N-th intensity value without replacing or resetting values of the first time point, the second time point, the third time point, the first intensity, the second intensity, the third intensity, and the like, and obtains the RSSI The difference between the values can be calculated continuously.

According to an embodiment, a step of obtaining, by the door opening and closing device 2000, the RSSI of the first intensity from the user terminal 1000 at a first time point may be performed. The door opening and closing device 2000 may perform a step of acquiring RSSI of the second intensity from the user terminal 1000 at a second time point.

The door opening and closing device 2000 may set a first value based on the first intensity and the second intensity. For example, the controller of the door opening and closing device 2000 may set a first value based on the first intensity and the second intensity. For example, the first value may be set based on a difference between the first intensity and the second intensity.

The door opening and closing device 2000 may perform a step of obtaining RSSI of the third intensity from the user terminal 1000 at a third time point.

According to an embodiment, the door opening and closing device 2000 may compare the third intensity with the first value. At this time, when the third intensity is greater than or equal to the first value, a communication connection between the door opening and closing device 2000 and the user terminal 1000 may be induced.

Although FIG. 5 illustrates an embodiment in which the door opening/closing device obtains the RSSI of the signal received from the user terminal, the present invention is not limited thereto, and the user terminal may acquire the RSSI of the signal received from the door opening/closing device. At this time, steps S110 to S195 may be performed in the user terminal.

Alternatively, according to the access control system according to an embodiment of the present application, when the RSSI acquisition subject and the RSSI-based decision subject are different, the decision subject based on the RSSI may further perform the step of receiving the RSSI, The decision subject receiving the RSSI may perform at least one of steps S140 to S195.

For example, when a door opening and closing device obtains RSSI of a signal received from a user terminal and transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal responds to the obtained RSSI. Based on this, step S140 may be performed, and at least one of steps S150 to S195 may be performed based on the determination result of step S140.

6 is a flowchart illustrating a method of opening and closing a door according to an exemplary embodiment.

Referring to FIG. 6 , in the door opening and closing method according to the embodiment, the door opening and closing device 2000 obtains the RSSI of the first intensity at the first point in time from the user terminal 1000 (S200), and the door opening and closing device 2000 Acquiring RSSI of the second intensity at a second time point from the user terminal 1000 (S210), acquiring a difference between the first intensity and the second intensity (S220), the difference between the first intensity and the second intensity is Determining whether the first value is greater than or equal to (S230), requesting connection authentication information from the user terminal 1000 when the difference between the first strength and the second strength is greater than or equal to the first value (S240). ), the user terminal 1000 transmitting connection authentication information to the door opening and closing device 2000 (S250), requesting open authentication information from the user terminal 1000 (S260), Transmitting open authentication information to the opening/closing device 2000 (S270), determining whether the open authentication information obtained from the user terminal 1000 is valid (S280), and opening the door (S290). can do.

The step S200 in which the door opening/closing device 2000 of FIG. 6 obtains the RSSI of the first intensity at the first time point from the user terminal 1000 is the door opening/closing device 2000 of FIG. It may be the same as obtaining the RSSI of the first intensity at one point in time (S110).

The step (S210) in which the door opening/closing device 2000 of FIG. 6 obtains RSSI of the second intensity from the user terminal 1000 at a second time point (S210) is the door opening/closing device 2000 of FIG. It may be the same as obtaining RSSI of the second intensity at two points in time (S120).

The step of acquiring the difference between the first intensity and the second intensity based on the first and second intensities by the door opening and closing device 2000 of FIG. 6 (S130) is the door opening and closing device 2000 of FIG. and obtaining a difference between the first intensity and the second intensity based on the second intensity (S220).

In step S140 of determining whether the difference between the first intensity and the second intensity is greater than or equal to the first value by the door opening and closing device 2000 of FIG. 6 , the door opening and closing device 2000 of FIG. It may be the same as determining whether the difference between the second intensities is greater than or equal to the first value (S230).

According to an embodiment, when the difference between the first strength and the second strength is greater than or equal to the first value, the door opening and closing device 2000 requests connection authentication information from the user terminal 1000 (S240). can

The connection authentication information may be information necessary for the door opening and closing device 2000 and the user terminal 1000 to perform a communication connection.

For example, the connection authentication information may be information necessary for communication connection, such as a communication ID, encryption key, and mac address.

According to an embodiment, a step of transmitting connection authentication information from the user terminal 1000 to the door opening and closing device 2000 (S250) may be performed.

Also, according to an embodiment, the user terminal 1000 may transmit connection authentication information to the door opening and closing device 2000 in response to a request for transmission of connection authentication information from the door opening and closing device 2000 .

As the user terminal 1000 transmits connection authentication information to the door opening and closing device 2000, a mutual communication connection may be performed.

For example, the terminal communication unit 1010 of the user terminal 1000 and the door communication unit 2010 of the door opening and closing device 2000 may communicate with each other.

According to an embodiment, the terminal communication unit 1010 of the user terminal 1000 and the door communication unit 2010 of the door opening/closing device 2000 may be BLE communication modules, and the user terminal 1000 and the door opening/closing device according to an embodiment The mutual communication connection of the device 2000 may be a BLE communication connection.

The door opening and closing device 2000 may maintain communication with the user terminal 1000 .

According to an embodiment, a step (S260) of the door opening/closing device 2000 requesting open authentication information from the user terminal 1000 may be performed.

The opening authentication information may be information necessary for determining whether the user terminal 1000 and/or the user of the user terminal 1000 is a valid user authorized to open the door.

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

Authentication information may be information about whether or not there is authority for door opening.

Also, the user identification information may be identification information given to the user.

Also, the user terminal identification information may be identification information given to the user terminal 1000 . For example, the user terminal identification information may be an ID assigned to the user terminal, a model name, a serial number, and a communication number.

In addition, the password may be information that can determine validity through matching. For example, the password may be a key including at least one of numbers and letters. For another example, the password may be biometric information.

According to an embodiment, a step (S270) of the user terminal 1000 transmitting open authentication information to the door opening/closing device 2000 may be performed.

Also, according to an embodiment, the user terminal 1000 may transmit opening authentication information to the door opening and closing device 2000 in response to a transmission request of the door opening and closing device 2000 for opening authentication information.

According to an embodiment, a step of determining whether open authentication information obtained from the user terminal 1000 is valid (S280) may be performed.

According to an embodiment, when the door opening/closing device 2000 obtains open authentication information from the user terminal 1000, it may determine whether the open authentication information is valid.

Determining whether the open authentication information is valid includes 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 1000 is valid based on the open authentication information. can include

Also, the step of determining validity according to an embodiment may be a step of determining whether the door is open.

The door opening and closing device 2000 may determine validity based on the open authentication information.

The door opening/closing device 2000 may determine validity based on at least one of authentication information, user identification information, user terminal identification information, and a password included in the opening authentication information.

According to an embodiment, it may be determined that user identification information and/or user terminal identification information are valid when they match pre-registered user identification information and/or user terminal identification information.

According to an embodiment, when it is determined that the password included in the open authentication information matches a pre-stored password, it may be determined to be valid.

Alternatively, according to an embodiment, the door opening and closing device 2000 determines validity based on at least one of user identification information, user terminal identification information, and password, and determines whether or not there is an opening authority based on authentication information to determine whether or not to open the door. can judge

For example, the door opening and closing device 2000 determines validity based on at least one of user identification information, user terminal identification information, and a password, and if valid, further considers authentication information included in open authentication information to control door opening. It can be judged whether The door opening and closing device 2000 may determine to open the door when it is determined that the authentication information includes the authority to open the door.

According to an embodiment, opening the door (S290) may be performed.

According to an embodiment, the door opening and closing device 2000 may control to open the door when the authentication result is valid.

According to an embodiment, the door opening and closing device 2000 may control to open the door when the authentication result is valid and there is authority to open the door.

When the authentication result is valid, the door opening and closing device 2000 may provide power through the door driver so that the door is unlocked.

Although FIG. 6 illustrates an embodiment in which the door opening/closing device acquires the RSSI of the signal received from the user terminal, the present invention is not limited thereto, and the user terminal may acquire the RSSI of the signal received from the door opening/closing device. At this time, the steps of S200 to S290 may be performed in the user terminal.

Alternatively, according to the access control system according to an embodiment of the present application, when the RSSI acquisition subject and the RSSI-based decision subject are different, the decision subject based on the RSSI may further perform the step of receiving the RSSI, Upon receiving the RSSI, the determining subject may perform at least one of steps S230 to S290.

For example, when a door opening and closing device obtains RSSI of a signal received from a user terminal and transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal responds to the obtained RSSI. Based on this, step S230 may be performed, and at least one of steps S240 to S290 may be performed based on the determination result of step S230.

7 is a graph showing RSSI of a signal acquired from a user terminal over time according to an embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 7 , the door opening and closing device 2000 may acquire RSSI of the first intensity r1 from the user terminal 1000 at a first time point t1. Also, the door opening and closing device 2000 may obtain the RSSI of the second intensity r2 from the user terminal 1000 at the second time point t2.

The door opening and closing device 2000 may obtain a difference between the first intensity r1 and the second intensity r2.

The door opening and closing device 2000 may determine whether a difference between the first intensity r1 and the second intensity r2 is greater than or equal to the first value v1.

When the difference between the first strength r1 and the second strength r2 is greater than or equal to the first value v1, the door opening and closing device 2000 may induce a communication connection with the user terminal 1000.

Specifically, when the difference between the first intensity r1 and the second intensity r2 is greater than or equal to the first value v1, the door opening and closing device 2000 operates the user terminal 1000 at the second time point t2. A communication connection with can be derived.

8 is a graph showing RSSI of a signal acquired from a user terminal over time according to an embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 8, as shown in FIG. 7, the door opening and closing device 2000 has a first strength r1, which is the size of RSSI obtained at the first time point t1, and a second strength r1, which is the size of RSSI obtained at the second time point t2. It may be determined whether the difference from the second intensity r2 is greater than or equal to the first value v1.

When the difference between the first strength r1 and the second strength r2 is greater than or equal to the first value v1, the door opening and closing device 2000 establishes a communication connection with the user terminal 1000 at the second time point t2. can induce

In the door opening and closing device 2000, the difference between the first intensity r1 and the second intensity r2 is greater than or equal to the first value v1, and at the same time, from after the first time point t1 to before the second time point t2 Until - including the first time point (t1) and the second time point (t2) - must satisfy that the instantaneous slope value at all time points is 0 or a positive sign, the user terminal 1000 at the second time point (t2) ) can lead to a communication connection.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the RSSI values at all times between the first time point t1 and the second time point t2 are It may be greater than or equal to the first intensity r1, which is the RSSI value at 1 time point t1.

According to an embodiment, the instantaneous slope value may be calculated based on the RSSI value over time. In addition, the instantaneous slope value may correspond to the slope of a tangent line at a specific point in time with respect to the RSSI graph over time.

According to an embodiment, the door opening and closing device 2000 may calculate an instantaneous inclination value based on an RSSI value over time. In addition, the door opening and closing device 2000 may calculate a slope value of a tangent line at a specific point in time with respect to the RSSI graph over time.

Also, according to an embodiment, when a time point at which the instantaneous gradient value becomes negative occurs, the corresponding time point may be set as the first time point. A second time point having an RSSI having a difference greater than or equal to a first value from an RSSI value at the first time point after the first time point may be obtained. In other words, when a time point at which the instantaneous slope value becomes negative occurs, the step of having the RSSI of the first intensity at the first time point may be executed again.

9 is a graph showing RSSI of a signal acquired from a user terminal over time according to an embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 9, as shown in FIG. 7, the door opening and closing device 2000 has a first strength r1, which is the size of RSSI obtained at the first time point t1, and a second strength r1, which is the size of RSSI obtained at the second time point t2. It may be determined whether the difference from the second intensity r2 is greater than or equal to the first value v1.

When the difference between the first strength r1 and the second strength r2 is greater than or equal to the first value v1, the door opening and closing device 2000 establishes a communication connection with the user terminal 1000 at the second time point t2. can induce

In the door opening and closing device 2000, the difference between the first intensity r1 and the second intensity r2 is greater than or equal to the first value v1, and at the same time, the third time point t3 and the fourth time point t4 are It exists between the first time point t1 and the second time point t2, and the third intensity r3, which is the RSSI value at the third time point t3, is the fourth intensity r4, which is the RSSI value at the fourth time point t4. A communication connection with the user terminal 1000 can be induced at the second point in time t2 only when the minimum value is satisfied.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, an RSSI graph according to time between the first time point t1 and the second time point t2 may be an increasing function. .

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, a third time point t3 and a second time point t3 exist between the first time point t1 and the second time point t2. Four time points t4 may exist. When the third time point t3 is smaller than the fourth time point t4, the third intensity r3, which is the RSSI value at the third time point t3, is equal to the fourth intensity r4, which is the RSSI value at the fourth time point t4. may be smaller than

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the RSSI values at all times between the first time point t1 and the second time point t2 are It may be greater than or equal to the first intensity r1, which is the RSSI value at 1 time point t1.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the instantaneous slope of the RSSI graph according to the time between the first time point t1 and the second time point t2 is all It can have a positive sign. In addition, the instantaneous slope of the RSSI graph according to the time between the first time point t1 and the second time point t2 may include 0.

Also, according to an embodiment, when the third time point is smaller than the fourth time point and the third intensity, which is the RSSI value at the third time point, is greater than the fourth intensity, which is the RSSI value at the fourth time point, the fourth time point is determined as the first time point. can A second time point having an RSSI having a difference greater than or equal to a first value from an RSSI value at the first time point after the first time point may be obtained. In other words, when the third intensity is greater than the fourth intensity, which is the RSSI value at the fourth time point, the fourth time point becomes the first time point, and the step of having the RSSI at the first time point may be executed again.

10 is a graph showing RSSI of a signal acquired from a user terminal over time according to an embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 10, as shown in FIG. 7, the door opening and closing device 2000 has a first strength r1, which is the size of RSSI obtained at the first time point t1, and a second strength r1, which is the size of RSSI obtained at the second time point t2. It may be determined whether the difference from the second intensity r2 is greater than or equal to the first value v1.

When the difference between the first strength r1 and the second strength r2 is greater than or equal to the first value v1, the door opening and closing device 2000 establishes a communication connection with the user terminal 1000 at the second time point t2. can induce

In the door opening and closing device 2000, the difference between the first intensity r1 and the second intensity r2 is greater than or equal to the first value v1, and at the same time, the first intensity r1 is greater than the first threshold value l1. A communication connection with the user terminal 1000 can be induced at the second point in time t2 only when it is greater than or equal to.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the first strength r1, which is the RSSI value at the first time point t1, is greater than the first threshold value l1. or can be the same

The first threshold value l1 may be a predetermined value. For example, the first threshold value l1 may be -50dB.

By determining the first threshold value 11, unnecessary triggering caused by noise can be prevented. In addition, by determining the first threshold value l1, a communication connection with the user terminal 1000 that exists only within a certain distance can be induced.

According to an embodiment, the door opening/closing device 2000 may obtain RSSI of the received signal at every moment of receiving a signal from the user terminal 1000 and obtain a difference between the first strength and the second strength.

Also, according to another embodiment, the door opening and closing device 2000 obtains the RSSI of the received signal at every moment when a signal is received from the user terminal 1000, and from the time when the RSSI of the received signal is equal to or greater than the first threshold value. , the difference between the first and second intensities can be obtained.

11 is a graph showing RSSI of a signal acquired from a user terminal over time according to an embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 11, as shown in FIG. 7, the door opening and closing device 2000 has a first strength r1, which is the size of RSSI obtained at the first time point t1, and a second strength r1, which is the size of RSSI obtained at the second time point t2. It may be determined whether the difference from the second intensity r2 is greater than or equal to the first value v1.

When the difference between the first strength r1 and the second strength r2 is greater than or equal to the first value v1, the door opening and closing device 2000 establishes a communication connection with the user terminal 1000 at the second time point t2. can induce

In the door opening and closing device 2000, the difference between the first intensity r1 and the second intensity r2 is greater than or equal to the first value v1, and at the same time, the second intensity r2 is greater than the first threshold value l1. A communication connection with the user terminal 1000 can be induced at the second point in time t2 only when it is greater than or equal to.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the second strength r2, which is the RSSI value at the second time point t2, is greater than the first threshold value l1. or can be the same

The first threshold value l1 may be a predetermined value. For example, the first threshold value l1 may be -35dB.

By determining the first threshold value 11, unnecessary triggering caused by noise can be prevented. In addition, by determining the first threshold value l1, a communication connection with the user terminal 1000 that exists only within a certain distance can be induced.

12 is an environment diagram of an access control system according to another embodiment.

Referring to FIG. 12 , an access management system 20000 according to another embodiment of the present invention may include a user terminal 1100 , a door opening/closing device 2100 and an authentication server 3100 . The door opening and closing device 2100 may include a door reader 2300 and a sub-reader 2500.

Since the block diagram of the user terminal 1100 may be the same as the block diagram of the user terminal 1000 of FIG. 2 described above, a detailed description thereof will be omitted.

A block diagram of the door opening and closing device 2100 may be the same as the block diagram of the door opening and closing device 2000 of FIG. 3 described above, and thus a detailed description thereof will be omitted.

A block diagram of the authentication server 3100 may be the same as the block diagram of the authentication server 3000 of FIG. 4 described above, and thus a detailed description thereof will be omitted.

According to an embodiment, the user terminal 1100 may be connected to the door opening/closing device 2100. For example, the user terminal 1100 may be connected to the sub-reader 2500 of the door opening and closing device 2100 .

Also, the user terminal 1100 may transmit a communication signal to the door opening/closing device 2100 . Alternatively, the user terminal 1100 may transmit a communication signal to the sub-reader 2500.

In addition, the user terminal 1100 may communicate with the door opening and closing device 2100 by transmitting connection authentication information to the door opening and closing device 2100 . Alternatively, the user terminal 1100 may communicate with the door opening/closing device 2100 by transmitting connection authentication information to the sub-reader 2500 .

In addition, the user terminal 1100 may transmit open authentication information to the door opening/closing device 2100 to request opening of the door. Alternatively, the user terminal 1100 may request opening of the door by transmitting open authentication information to the sub-reader 2500 .

In addition, the user terminal 1100 may transmit open authentication information to the door opening and closing device 2100 to determine validity, and transmit open request information to request opening of the door. Alternatively, the user terminal 1100 may transmit open authentication information to the sub-reader 2500 to determine validity, and transmit open request information to request door opening.

According to an embodiment, the door opening and closing device 2100 may be connected to the user terminal 1100 .

In addition, the door opening and closing device 2100 may receive a signal from the user terminal 1100 and obtain RSSI of the received signal.

In addition, the door opening and closing device 2100 may obtain open authentication information from the user terminal 1100 and determine validity based on the obtained open authentication information. The door opening and closing device 2100 may determine whether to open the door based on the validity determination result.

According to one embodiment, the door opening and closing device 2100 may include a door reader 2300 and a sub-reader 2500.

The door reader 2300 may communicate with the door opening and closing device 2100 using a communication method supported by the door opening and closing device 2100 .

The door reader 2300 may be connected to the door control unit 2070 of the door opening and closing device 2000. For example, the door reader 2300 may detect a sensor of the door sensor unit 2040 through the door control unit 2070. Also, for example, the door reader 2300 may control driving of the door driving unit 2050 through the door control unit 2070.

When the communication method supported by the user terminal 1100 and the communication method supported by the door reader 2300 are different, the sub-reader 2500 uses the communication method supported by the user terminal 1100 and the communication method supported by the door reader 2300. It can serve as an intermediate medium that helps connect the user terminal 1100 and the door reader 2300 with all communication methods.

The sub-reader 2500 can communicate with the user terminal 1100 using a communication method supported by the user terminal 1100 .

The sub-reader 2500 may communicate with the door reader 2300 using a communication method supported by the door reader 2300. In addition, the sub-reader 2500 may communicate with the door opening/closing device 2100 in a communication method supported by the door reader 2300.

In addition, the connection between the user terminal 1100 and the door opening/closing device 2100 may be implemented through a connection between the user terminal 1100 and the sub-reader 2500.

The sub-reader 2500 may be a component for adding a communication method other than the communication method supported by the door reader 2300 provided to the door opening and closing device 2100 installed in advance.

The sub-reader 2500 may be connected to the door reader 2300.

The sub-reader 2500 may be connected to the door reader 2300 to transmit and/or receive data.

According to an embodiment, the authentication server 3100 may be connected to the user terminal 1100 .

The authentication server 3100 may provide opening authentication information transmitted from the user terminal 1100 to the door opening/closing device 2100 to request door opening. In addition, open authentication information transmitted from the user terminal 1100 to the sub-reader 2500 to request door opening may be provided.

The authentication server 3100 may receive a request for issuance of open authentication information from the user terminal 1100 .

In addition, the authentication server 3100 may acquire information necessary to determine whether the user terminal 1100 is a valid user and/or user terminal 1100 while receiving a request for issuance of open authentication information from the user terminal 1100, and as a result of the determination, a valid user and/or user terminal 1100. Alternatively, in the case of the user terminal 1100, open authentication information may be issued to the user terminal 1100.

13 is a block diagram illustrating a sub-reader according to an exemplary embodiment.

Referring to FIG. 13, a sub-reader 2500 includes a sub-reader communication unit 2510, a sub-reader display unit 2530, a sub-reader sensor unit 2550, a sub-reader storage unit 2570, and a sub-reader control unit 2590. can do.

The sub-reader communication unit 2510 may include a sub-reader first communication unit 2511 and a sub-reader second communication unit 2513.

The sub-reader communication unit 2510 may be connected to the user terminal 1100 and the door opening/closing device 2100 .

For example, the sub-reader communication unit 2510 may be connected to the terminal communication unit 1010 of the user terminal 1100 when connected to the user terminal 1100 .

Also, for example, the sub-reader communication unit 2510 may be connected to the door reader 2300 included in the door opening and closing device 2100 when connected to the door opening and closing device 2100 .

Also, the sub-reader communication unit 2510 may provide at least one communication method not supported by the door reader 2300.

The sub-reader communication unit 2510 may include a sub-reader first communication unit 2511 connected to the user terminal 1100 and a sub-reader second communication unit 2513 connected to the door reader 2300.

According to an embodiment, the sub-reader first communication unit 2511 may acquire data from the user terminal 1100, and the sub-reader second communication unit 2513 may provide data to the door reader 2300.

Also, according to an embodiment, a communication method in which the first communication unit 2511 of the sub-reader is connected to the user terminal 1100 and a communication method in which the second communication unit 2513 of the sub-reader is connected to the door reader 2300 may be different from each other. have.

For example, the sub-reader first communication unit 2511 may be connected to the user terminal 1100 through Bluetooth communication, and the sub-reader second communication unit 2513 may be connected to the door reader 2300 through magnetic communication. have.

Also, according to an embodiment, the first communication unit 2511 of the sub-reader may support at least one communication method different from the communication method supported by the second communication unit 2513 of the sub-reader.

For example, the sub-reader first communication unit 2511 is connected to the user terminal 1100 through a Bluetooth communication method to obtain data, and the sub-reader second communication unit 2513 uses a magnetic communication method to obtain a door reader ( 2300) may provide data.

The sub-reader display unit 2530 may output visual information.

The sub-reader display unit 2530 may output information to visually provide to the user. When the sub-reader display unit 2530 includes a touch panel, the sub-reader display unit 2530 may operate as an input device based on touch input.

The sub-reader sensor unit 2550 may obtain open request information from the outside.

According to an embodiment, the sub-reader sensor unit 2550 may be provided with at least one of an image sensor, a biosignal acquisition sensor, and a barcode reader.

The image sensor may be a sensor module that acquires a signal corresponding to an external image.

The biosignal acquisition sensor may be a sensor module that acquires signals for biometric information such as fingerprint, vein, iris, and face.

The barcode reader may be a sensor module that obtains information from code data such as a 1D barcode and a 2D barcode.

The one-dimensional barcode may be a linear barcode. In addition, the 2D barcode may be a 2D barcode such as a QR code, Aztec, MaxiCode, and Data Matrix.

The sub-reader storage unit 2570 may store programs for performing control operations of the sub-reader controller 2590, and may store data received from the outside and data generated from the sub-reader controller 2590.

The sub-reader controller 2590 may control the operation of several components included in the sub-reader 2500 . Also, the sub-reader control unit 2590 may obtain signals from several components included in the sub-reader 2500.

14 is a flowchart illustrating a communication connection induction method according to another embodiment.

Referring to FIG. 14 , the communication connection induction method according to the embodiment includes obtaining, by the sub-reader 2500, RSSI of the first strength at a first time point from the user terminal 1100 (S310), and Acquiring RSSI of the second intensity at a second time point from the terminal 1100 (S320), acquiring the difference between the first intensity and the second intensity by the sub-reader 2500 (S330), and obtaining the difference between the first intensity and the second intensity. Determining whether the difference between the two intensities is greater than or equal to the first value (S340). If the difference between the first and second intensities is greater than or equal to the first value, a communication connection inducement signal is sent to the door reader 2300. It may include transmitting (S350).

According to an embodiment, a step in which the sub-reader 2500 obtains the RSSI of the first strength at the first time point from the user terminal 1100 may be performed (S310).

Also, according to an embodiment, a step of obtaining, by the sub-reader 2500, RSSI of the second strength from the user terminal 1100 at a second time point may be performed (S320).

The sub-reader 2500 may obtain information about the strength of the signal received from the user terminal 1100 (RSSI).

For example, the sub-reader 2500 may obtain received signal strength based on an advertise packet sent by the user terminal 1100.

The sub-reader 2500 may obtain a signal transmitted by the user terminal 1100 located within a communication range, and may determine received signal strength of the signal transmitted by the user terminal 1100 obtained.

In addition, the sub-reader 2500 may calculate the distance to the user terminal 1100 based on the received signal strength of the signal transmitted by the user terminal 1100 .

For example, the sub-reader 2500 may determine that the distance from the user terminal 1100 is 10 m when the received signal strength of the signal transmitted by the user terminal 1100 is 10 dB.

In addition, the received signal strength may be obtained based on different data according to communication connection conditions.

For example, prior to mutual communication connection between the sub-reader 2500 and the user terminal 1100, the door opening/closing device 2000 may acquire received signal strength based on an advertise packet sent by the user terminal 1000.

According to an embodiment, a difference between the first intensity and the second intensity is obtained by the sub-reader 2500 based on the first intensity RSSI obtained at the first time point and the second intensity RSSI obtained at the second time point. Steps may be performed (S330).

For example, the difference between the first intensity and the second intensity may be an absolute value obtained by subtracting the second intensity from the first intensity. Alternatively, for example, the difference between the first intensity and the second intensity may be a value obtained by subtracting the smaller value from the larger value.

According to an embodiment, a step of determining whether a difference between the first intensity and the second intensity is greater than or equal to the first value may be performed by the sub-reader 2500 (S340).

According to one embodiment, the first value may be a predetermined value. For example, the first value may be 10 dB.

According to an embodiment, the sub-reader 2500 sends a communication connection inducement signal to the door reader 2300 when the difference between the first and second strengths, which are RSSI obtained from the user terminal 1100, is greater than or equal to the first value. Can be transmitted (S350).

When the sub-reader 2500 transmits a communication connection inducement signal to the door reader 2300, the door reader 2300 requests connection authentication information from the user terminal 1100 through the sub-reader 2500. .

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 transmits open authentication information to the user terminal 1100 through the sub-reader 2500. Requests can be made.

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 can determine whether the open authentication information is valid.

When the door reader 2300 determines that the opening authentication information is valid, the door can be opened.

Induction of a communication connection between the user terminal 1000 and the door opening/closing device 2000 may be when the door opening/closing device 2000 requests connection authentication information from the user terminal 1000 . Alternatively, the door opening/closing device 2000 may request open authentication information from the user terminal 1000 .

14 shows a form in which the sub-reader 2500 determines the RSSI based on the RSSI of the signal received from the user terminal, but is not limited thereto, and the user terminal determines the RSSI of the signal received from the sub-reader 2500 An embodiment of determining the RSSI based on this is also possible.

Alternatively, the sub-reader may obtain the RSSI of the signal received from the user terminal and transmit it to the user terminal, and the user terminal may perform step S340. That is, when the RSSI receiving subject and the RSSI determining subject are different, the determining subject receiving the RSSI may further perform the step of receiving the RSSI, and the determining subject receiving the RRSI may perform at least one of steps S340 to S350 steps can be performed.

For example, when a sub-reader acquires the RSSI of a signal received from a user terminal, transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal based on the obtained RSSI Step S340 may be performed, and step S350 may be performed based on the determination result of step S340.

15 is a flowchart illustrating a communication connection induction method according to another embodiment.

Referring to FIG. 15, the communication connection derivation method according to the embodiment includes obtaining, by the sub-reader 2500, the RSSI of the first strength at the first time point from the user terminal 1100 (S410), the sub-reader 2500 Acquiring RSSI of the second intensity at a second time point from the terminal 1100 (S420), and transmitting the first and second intensities obtained by the sub-reader 2500 to the door reader 2300 (S430) , Obtaining, by the door reader 2300, a difference between the first and second strengths (S440), and the door reader 2300 determining whether the difference between the first and second strengths is greater than or equal to the first value. It may include a step (S450) of doing.

The sub-reader 2500 of FIG. 15 obtains the RSSI of the first intensity at the first time point from the user terminal 1000 (S410) by the sub-reader 2500 of FIG. 14 from the user terminal 1000 at the first time point. It may be the same as the step (S310) of obtaining the RSSI of the first intensity in .

The sub-reader 2500 of FIG. 15 obtains the RSSI of the second intensity at the second time point from the user terminal 1000 (S420). It may be the same as the step of obtaining the RSSI of the second intensity in (S320).

According to an embodiment, the sub-reader 2500 may transmit the first and second intensities, which are the acquired RSSI, to the door reader 2300 (S430).

The sub-reader 2500 may transmit the first strength and the second strength to the door reader 2300 through a communication method supported by the door reader 2300 .

In addition, the sub-reader 2500 may transmit the first and second intensities to the door reader 2300 through the second communication unit 2513 of the sub-reader communicating in a communication method supported by the door reader 2300.

According to an embodiment, the door reader 2300 may obtain a difference between the first and second intensities based on the first and second intensities that are the received RSSI (S440).

According to an embodiment, the door reader 2300 may determine whether a difference between the first intensity and the second intensity is greater than or equal to the first value (S450).

According to one embodiment, the first value may be a predetermined value. For example, the first value may be 10 dB.

According to an embodiment, the door reader 2300 transmits a signal for inducing a communication connection with the user terminal 1100 at a second time point when the difference between the first strength and the second strength is greater than or equal to the first value, to the sub-reader. (2500).

The door reader 2300 transmits a signal for inducing a communication connection with the user terminal 1100 to the sub-reader 2500, so that the door reader 2300 authenticates connection to the user terminal 1100 through the sub-reader 2500. A step of requesting information may be made.

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 transmits open authentication information to the user terminal 1100 through the sub-reader 2500. Requests can be made.

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 can determine whether the open authentication information is valid.

When the door reader 2300 determines that the opening authentication information is valid, the door can be opened.

Induction of a communication connection between the user terminal 1000 and the door opening/closing device 2000 may be when the door opening/closing device 2000 requests connection authentication information from the user terminal 1000 . Alternatively, the door opening/closing device 2000 may request open authentication information from the user terminal 1000 .

15 illustrates a form in which the sub-reader 2500 determines the RSSI based on the RSSI of the signal received from the user terminal, but is not limited thereto, and the user terminal determines the RSSI of the signal received from the sub-reader 2500 An embodiment of determining the RSSI based on this is also possible.

Alternatively, the sub-reader may obtain the RSSI of the signal received from the user terminal and transmit it to the user terminal, and the user terminal may perform step S440. That is, when the RSSI receiving subject and the RSSI determining subject are different, the determining subject receiving the RSSI may further perform the step of receiving the RSSI, and the determining subject receiving the RRSI may perform at least one of steps S440 to S450 steps can be performed.

For example, when a sub-reader acquires the RSSI of a signal received from a user terminal, transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal based on the obtained RSSI Step S440 may be performed, and step S450 may be performed based on the determination result of step S440.

16 is a flowchart illustrating a method of inducing a communication connection of a door opening and closing device according to another embodiment.

Referring to FIG. 16, a method for inducing a communication connection of a door opening and closing device 2000 according to another embodiment includes obtaining RSSI (received signal strength) of a first strength at a first time point from a user terminal 1000 (S510); Obtaining RSSI of a second intensity at a second time point from the user terminal 1000 (520), obtaining a slope between the first time point and the second time point based on the RSSI at the first time point and the RSSI at the second time point Step (S530), determining whether the slope between the first and second points in time is greater than or equal to the second value (S540), inducing a communication connection between the user terminal 1000 and the door opening and closing device 2000 Step (S550), obtaining RSSI of the third intensity at the third time point (S560), determining whether the third intensity is greater than or equal to the second intensity (S570), the third point in time as the second point in time substituting the third intensities with the second intensities (S580), replacing the third intensities with the first intensities and replacing the third intensities with the first intensities (S590), and the second intensities and the second intensities A resetting step (S595) may be included.

According to an embodiment, a step in which the door opening and closing device 2000 obtains the RSSI of the first intensity from the user terminal 1000 at a first time point may be performed (S510).

Also, according to an embodiment, a step of acquiring the RSSI of the second intensity from the user terminal 1000 by the door opening and closing device 2000 at a second time point may be performed (S520).

The door opening and closing device 2000 may obtain information about the signal strength (RSSI) received from the user terminal 1000 .

For example, the door opening and closing device 2000 may obtain received signal strength based on an advertise packet sent by the user terminal 1000 .

The door opening/closing device 2000 may obtain a signal transmitted by the user terminal 1000 located within a communication range, and may determine received signal strength of the signal transmitted by the user terminal 1000 obtained.

Also, the door opening and closing device 2000 may calculate the distance to the user terminal 1000 based on the received signal strength of the signal transmitted by the user terminal 1000 .

For example, the door opening and closing device 2000 may determine that the distance from the user terminal 1000 is 10 m when the received signal strength of the signal transmitted by the user terminal 1000 is 10 dB.

In addition, the received signal strength may be obtained based on different data according to communication connection conditions.

For example, before mutual communication connection between the door opening and closing device 2000 and the user terminal 1000, the door opening and closing device 2000 may acquire received signal strength based on an advertise packet sent by the user terminal 1000.

According to an embodiment, the door opening and closing device 2000 acquires a slope between the first time point and the second time point based on the first intensity RSSI obtained at the first time point and the second intensity RSSI obtained at the second time point. Steps may be performed (S530).

The slope between the first time point and the second time point may be a change amount obtained by dividing the difference between the second time point and the first time point by the difference between the second time point and the first time point.

For example, the slope between the first time point and the second time point may be a value obtained by dividing the difference between the first time point and the second time point by the difference between the first time point and the second time point.

Also, for example, the slope between the first time point and the second time point may be a value obtained by dividing a value obtained by subtracting the second intensity from the first time point by a value obtained by subtracting the second time point from the first time point.

Also, for example, the slope between the first time point and the second time point may be an absolute value obtained by dividing a value obtained by subtracting the second intensity from the first time point by a value obtained by subtracting the second time point from the first time point.

According to an embodiment, the door opening and closing device 2000 may perform a step of determining whether the slope between the first time point and the second time point is greater than or equal to the second value (S540).

According to an embodiment, the second value may be a predetermined value. For example, the second value may be 100 or 100 [dB/sec].

According to an embodiment, the door opening and closing device 2000 may induce a communication connection with the user terminal 1000 at the second time point when the slope between the first time point and the second time point is greater than or equal to the second value ( S550).

Induction of a communication connection between the user terminal 1000 and the door opening/closing device 2000 may be when the door opening/closing device 2000 requests connection authentication information from the user terminal 1000 . Alternatively, the door opening/closing device 2000 may request open authentication information from the user terminal 1000 .

According to an embodiment, the door opening and closing device 2000 detects the first and second RSSI obtained from the user terminal 1000 when the difference between the first and second strengths is less than the first value, and the second time from the user terminal 1000. A step of obtaining RSSI of 3 intensities may be performed (S560).

In this case, the third time point may be later than the first time point and the second time point.

According to an embodiment, the door opening and closing device 2000 may determine whether the third intensity is greater than or equal to the second intensity (S570).

If the third intensity is greater than or equal to the second intensity, it may be an increasing function when the RSSI obtained from the user terminal 1000 is viewed as a graph over time. At this time, it may be determined that the user terminal 1000 is approaching the door opening and closing device 2000. Alternatively, it may be determined that the distance between the user terminal 1000 and the door opening/closing device 2000 is decreasing.

If the third intensity is smaller than the second intensity, it may be a function that decreases when the RSSI obtained from the user terminal 1000 is viewed as a graph over time. At this time, it may be determined that the user terminal 1000 is moving away from the door opening and closing device 2000. Alternatively, it may be determined that the distance between the user terminal 1000 and the door opening/closing device 2000 is increasing.

When the third intensity is less than the second intensity, it may be determined that the user terminal 1000 is moving away from the door opening and closing device 2000, so the difference between the first intensity and the second intensity based on the first point of view is determined. It is possible to acquire the difference between the third intensity and the RSSI intensity of the points of time after the third point of view based on the third point of view. The step of acquiring the second viewpoint may be performed so that the operation according to FIG. 16 proceeds with the third viewpoint as the first viewpoint. Specifically, it will be described in detail in steps S590 and S595 below.

According to an embodiment, when the third intensity is greater than or equal to the second intensity, the operation according to FIG. 16 may be performed by setting the third viewpoint as the second viewpoint. For example, when the third intensity is greater than or equal to the second intensity, the door opening and closing device 2000 performs a step of replacing the third point in time with the second point in time and the third point in time with the second intensity. It can be (S580).

The door opening and closing device 2000 replaces the third point in time with the second point in time and the third intensity with the second intensity, so that the first point is returned to the first point based on the replaced second point in time and the second intensity and the first point in time and the first intensity. A step of obtaining a difference between the intensity and the second intensity (S530) may be performed.

The meaning of the substitution is to determine what values to calculate the 'first strength' and 'second strength' for which the gradient is obtained in step S540 when the communication connection derivation (S550) is performed through comparison with the first value. It may mean 'setting change' in the door opening and closing device 2000.

Alternatively, the meaning of the substitution may be a generally used meaning of substitution. For example, any one value among at least one of the values of 'first time point', 'first strength', 'second strength point' and 'second strength' stored to be used to obtain the slope in step S540. It can mean 'save in memory' by deleting and replacing it with another value. As another example, when the second time point is b, the second intensity is B, the third time point is c, and the third intensity is C, it may mean changing the values of b to c and B to C. Specifically, it may mean deleting the values of the second point in time and the second intensity, and inputting the values of the third point in time and the third intensity to the deleted part. Additionally, the third time point and third intensity after substitution may be deleted.

After replacing the third point in time with the second point in time and the third intensity with the second intensity, the difference between the first and second intensities is obtained (S530), and the difference between the first and second intensities is again the first value. A step of determining whether the number is greater than or equal to (S540) may be performed.

According to an embodiment, when the third intensity is less than the second intensity, the door opening and closing device 2000 may perform a step of replacing the third point in time with the first point in time and the third point in time with the first point in time (S590). ).

The meaning of the substitution is to determine what values to calculate the 'first strength' and 'second strength' for which the gradient is obtained in step S540 when the communication connection derivation (S550) is performed through comparison with the first value. It may mean 'setting change' in the door opening and closing device 2000.

Alternatively, the meaning of the substitution may be a generally used meaning of substitution. For example, any one value among at least one of the values of 'first time point', 'first strength', 'second strength point' and 'second strength' stored to be used to obtain the slope in step S540. It can mean 'save in memory' by deleting and replacing it with another value. As another example, when the first time point is a, the first intensity is A, the third time point is c, and the third intensity is C, it may mean changing the values of a to c and A to C. Specifically, it may mean deleting the values of the first time point and the first intensity, and inputting the values of the third time point and the third intensity to the deleted parts. Additionally, the third time point and third intensity after substitution may be deleted.

According to an embodiment, a step of resetting the second time point and the second strength of the door opening and closing device 2000 may be performed (S595).

Regarding the meaning of the reset, the value of the second point in time and the second intensity may be deleted. Alternatively, not only the values of the second time point and the second intensity, but also the terms of the second time point and the second intensity may be deleted together.

After the second time point and the second intensity are reset, the door opening/closing apparatus 2000 obtains RSSI of the second intensity at the second time point (S520).

The process of the door opening/closing device 2000 receiving RSSI from the user terminal 1000 and obtaining a difference in RSSI values based on the received RSSI has been described as 'replacing a value' or 'resetting a value', but this Not limited. A process in which the door opening and closing device 2000 receives RSSI and obtains a difference between RSSI values may be continuously performed over time. The door opening/closing device 2000 obtains the N-th time point and the N-th intensity value without replacing or resetting values of the first time point, the second time point, the third time point, the first intensity, the second intensity, the third intensity, and the like, and obtains the RSSI The difference between the values can be calculated continuously.

16 illustrates an embodiment in which the door opening/closing device obtains the RSSI of the signal received from the user terminal, but is not limited thereto, and the user terminal may acquire the RSSI of the signal received from the door opening/closing device. At this time, steps S510 to S595 may be performed in the user terminal.

Alternatively, according to the access control system according to an embodiment of the present application, when the RSSI acquisition subject and the RSSI-based decision subject are different, the decision subject based on the RSSI may further perform the step of receiving the RSSI, The determining subject receiving the RSSI may perform at least one of steps S540 to S595.

For example, when a door opening and closing device obtains RSSI of a signal received from a user terminal and transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal responds to the obtained RSSI. Based on the determination result of step S540, at least one of steps S550 to S595 may be performed.

17 is a flowchart illustrating a method of opening and closing a door according to another embodiment.

Referring to FIG. 17 , in the door opening and closing method according to the embodiment, the door opening and closing device 2000 obtains the RSSI of the first intensity at the first point in time from the user terminal 1000 (S600), and the door opening and closing device 2000 Acquiring RSSI of the second intensity at a second time point from the user terminal 1000 (S610), obtaining a slope between the first time point and the second time point (S620), Determining whether the slope is greater than or equal to the second value (S630), requesting connection authentication information from the user terminal 1000 (S640), and authenticating the connection of the user terminal 1000 to the door opening/closing device 2000 Transmitting information (S650), requesting open authentication information from the user terminal 1000 (S660), transmitting open authentication information from the user terminal 1000 to the door opening/closing device 2000 (S670), It may include determining whether the open certification information acquired from the user terminal 1000 is valid (S680) and opening the door (S690).

The step (S600) in which the door opening/closing device 2000 of FIG. 17 obtains the RSSI of the first intensity from the user terminal 1000 at the first time point (S600) is the door opening/closing device 2000 of FIG. It may be the same as obtaining the RSSI of the first intensity at one point in time (S510).

The step (S610) in which the door opening/closing device 2000 of FIG. 17 obtains RSSI of the second intensity from the user terminal 1000 at a second time point (S610) is the door opening/closing device 2000 of FIG. It may be the same as obtaining RSSI of the second intensity at two points in time (S520).

In step S630 of obtaining a difference between the first intensity and the second intensity based on the first intensity and the second intensity by the door opening and closing device 2000 of FIG. 17 , the door opening and closing device 2000 of FIG. 16 uses the first intensity and obtaining a difference between the first intensity and the second intensity based on the second intensity (S520).

In step S640 of determining whether the difference between the first intensity and the second intensity is greater than or equal to the first value by the door opening and closing device 2000 of FIG. 17 , the door opening and closing device 2000 of FIG. It may be the same as determining whether the difference between the second intensities is greater than or equal to the first value (S530).

According to an embodiment, when the slope between the first time point and the second time point is greater than or equal to the second value, the door opening and closing device 2000 requests connection authentication information from the user terminal 1000 (S640). It can be.

The connection authentication information may be information necessary for the door opening and closing device 2000 and the user terminal 1000 to perform a communication connection.

For example, the connection authentication information may be information necessary for communication connection, such as a communication ID, encryption key, and mac address.

According to an embodiment, a step of transmitting connection authentication information from the user terminal 1000 to the door opening and closing device 2000 (S650) may be performed.

Also, according to an embodiment, the user terminal 1000 may transmit connection authentication information to the door opening and closing device 2000 in response to a request for transmission of connection authentication information from the door opening and closing device 2000 .

As the user terminal 1000 transmits connection authentication information to the door opening and closing device 2000, a mutual communication connection may be performed.

For example, the terminal communication unit 1010 of the user terminal 1000 and the door communication unit 2010 of the door opening and closing device 2000 may communicate with each other.

According to an embodiment, the terminal communication unit 1010 of the user terminal 1000 and the door communication unit 2010 of the door opening/closing device 2000 may be BLE communication modules, and the user terminal 1000 and the door opening/closing device according to an embodiment The mutual communication connection of the device 2000 may be a BLE communication connection.

The door opening and closing device 2000 may maintain communication with the user terminal 1000 .

According to an embodiment, a step (S660) of the door opening/closing device 2000 requesting open authentication information from the user terminal 1000 may be performed.

The opening authentication information may be information necessary for determining whether the user terminal 1000 and/or the user of the user terminal 1000 is a valid user authorized to open the door.

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

Authentication information may be information about whether or not there is authority for door opening.

Also, the user identification information may be identification information given to the user.

Also, the user terminal identification information may be identification information given to the user terminal 1000 . For example, the user terminal identification information may be an ID assigned to the user terminal, a model name, a serial number, and a communication number.

In addition, the password may be information that can determine validity through matching. For example, the password may be a key including at least one of numbers and letters. For another example, the password may be biometric information.

According to an embodiment, a step (S670) of the user terminal 1000 transmitting open authentication information to the door opening/closing device 2000 may be performed.

Also, according to an embodiment, the user terminal 1000 may transmit opening authentication information to the door opening and closing device 2000 in response to a transmission request of the door opening and closing device 2000 for opening authentication information.

According to an embodiment, a step of determining whether open authentication information obtained from the user terminal 1000 is valid (S680) may be performed.

According to an embodiment, when the door opening/closing device 2000 obtains open authentication information from the user terminal 1000, it may determine whether the open authentication information is valid.

Determining whether the open authentication information is valid includes 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 1000 is valid based on the open authentication information. can include

Also, the step of determining validity according to an embodiment may be a step of determining whether the door is open.

The door opening and closing device 2000 may determine validity based on the open authentication information.

The door opening/closing device 2000 may determine validity based on at least one of authentication information, user identification information, user terminal identification information, and a password included in the opening authentication information.

According to an embodiment, it may be determined that user identification information and/or user terminal identification information are valid when they match pre-registered user identification information and/or user terminal identification information.

According to an embodiment, when it is determined that the password included in the open authentication information matches a pre-stored password, it may be determined to be valid.

Alternatively, according to an embodiment, the door opening and closing device 2000 determines validity based on at least one of user identification information, user terminal identification information, and password, and determines whether or not there is an opening authority based on authentication information to determine whether or not to open the door. can judge

For example, the door opening and closing device 2000 determines validity based on at least one of user identification information, user terminal identification information, and a password, and if valid, further considers authentication information included in open authentication information to control door opening. It can be judged whether The door opening and closing device 2000 may determine to open the door when it is determined that the authentication information includes the authority to open the door.

According to an embodiment, opening the door (S690) may be performed.

According to an embodiment, the door opening and closing device 2000 may control to open the door when the authentication result is valid.

According to an embodiment, the door opening and closing device 2000 may control to open the door when the authentication result is valid and there is authority to open the door.

When the authentication result is valid, the door opening and closing device 2000 may provide power through the door driver so that the door is unlocked.

17 illustrates an embodiment in which the door opening/closing device acquires the RSSI of the signal received from the user terminal, but is not limited thereto, and the user terminal may acquire the RSSI of the signal received from the door opening/closing device. At this time, the steps of S600 to S690 may be performed in the user terminal.

Alternatively, according to the access control system according to an embodiment of the present application, when the RSSI acquisition subject and the RSSI-based decision subject are different, the decision subject based on the RSSI may further perform the step of receiving the RSSI, The determining subject receiving the RSSI may perform at least one of steps S630 to S690.

For example, when a door opening and closing device obtains RSSI of a signal received from a user terminal and transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal responds to the obtained RSSI. Based on this, step S630 may be performed, and at least one of steps S640 to S690 may be performed based on the determination result of step S630.

18 is a graph showing RSSI of a signal acquired from a user terminal over time according to another embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 18 , the door opening and closing device 2000 may acquire RSSI of the first intensity r1 from the user terminal 1000 at a first time point t1. Also, the door opening and closing device 2000 may obtain the RSSI of the second intensity r2 from the user terminal 1000 at the second time point t2.

The door opening and closing device 2000 may obtain a slope s1 between the first time point t1 and the second time point t2.

The door opening and closing device 2000 may determine whether the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value.

When the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, the door opening and closing device 2000 communicates with the user terminal 1000 at the second time point t2. connection can be induced.

According to an embodiment, when a communication connection between the door opening and closing device 2000 and the user terminal 1000 is induced, a difference between the first time point t1 and the second time point t2 may be equal to or less than a predetermined value. For example, the difference between the first time point t1 and the second time point t2 may be 0.1 or 0.1 [sec].

Also, according to an embodiment, the door opening and closing device 2000 may not induce a communication connection with the user terminal 1000 when the difference between the first time point t1 and the second time point t2 is greater than a predetermined value. have.

Also, according to an embodiment, the door opening and closing device 2000 may not induce a communication connection with the user terminal 1000 when the second strength r2 is not greater than the second value, which is a predetermined value, than the first strength r1. can

19 is a graph showing RSSI of a signal acquired from a user terminal over time according to another embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 19, as shown in FIG. 17, the door opening and closing device 2000 may determine whether the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value. have.

When the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, the door opening and closing device 2000 communicates with the user terminal 1000 at the second time point t2. connection can be induced.

In the door opening and closing device 2000, the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, and at the same time, from the first time point t1 to the second time point t2 The user terminal at the second time point t2 ( 1000) can induce a communication connection.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the RSSI values at all times between the first time point t1 and the second time point t2 are It may be greater than or equal to the first intensity r1, which is the RSSI value at 1 time point t1.

According to an embodiment, the instantaneous slope value may be calculated based on the RSSI value over time. In addition, the instantaneous slope value may correspond to the slope of a tangent line at a specific point in time with respect to the RSSI graph over time.

According to an embodiment, the door opening and closing device 2000 may calculate an instantaneous inclination value based on an RSSI value over time. In addition, the door opening and closing device 2000 may calculate a slope value of a tangent line at a specific point in time with respect to the RSSI graph over time.

Also, according to an embodiment, when a time point at which the instantaneous gradient value becomes negative occurs, the corresponding time point may be set as the first time point. A second time point having an RSSI having a difference greater than or equal to a first value from an RSSI value at the first time point after the first time point may be obtained. In other words, when a time point at which the instantaneous slope value becomes negative occurs, the step of having the RSSI of the first intensity at the first time point may be executed again.

20 is a graph showing RSSI of a signal acquired from a user terminal over time according to another embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 20, as shown in FIG. 17, the door opening and closing device 2000 may determine whether the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value. have.

When the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, the door opening and closing device 2000 communicates with the user terminal 1000 at the second time point t2. connection can be induced.

In the door opening and closing device 2000, the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, and at the same time, the third time point t3 and the fourth time point t4 are The third intensity r3, which exists between the first time point t1 and the second time point t2, and is the RSSI value at the third time point t3, is the fourth intensity r4, which is the RSSI value at the fourth time point t4. ), it is possible to derive a communication connection with the user terminal 1000 at the second time point t2.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, an RSSI graph according to time between the first time point t1 and the second time point t2 may be an increasing function. .

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, a third time point t3 and a second time point t3 exist between the first time point t1 and the second time point t2. Four time points t4 may exist. When the third time point t3 is smaller than the fourth time point t4, the third intensity r3, which is the RSSI value at the third time point t3, is equal to the fourth intensity r4, which is the RSSI value at the fourth time point t4. may be smaller than

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the RSSI values at all times between the first time point t1 and the second time point t2 are It may be greater than or equal to the first intensity r1, which is the RSSI value at 1 time point t1.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the instantaneous slope of the RSSI graph according to the time between the first time point t1 and the second time point t2 is all It can have a positive sign. In addition, the instantaneous slope of the RSSI graph according to the time between the first time point t1 and the second time point t2 may include 0.

Also, according to an embodiment, when the third time point is smaller than the fourth time point and the third intensity, which is the RSSI value at the third time point, is greater than the fourth intensity, which is the RSSI value at the fourth time point, the fourth time point is determined as the first time point. can A second time point having an RSSI having a difference greater than or equal to a first value from an RSSI value at the first time point after the first time point may be obtained. In other words, when the third intensity is greater than the fourth intensity, which is the RSSI value at the fourth time point, the fourth time point becomes the first time point, and the step of having the RSSI at the first time point may be executed again.

21 is a graph showing RSSI of a signal acquired from a user terminal over time according to another embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 21 , as shown in FIG. 17 , the door opening and closing device 2000 may determine whether the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value. have.

When the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, the door opening and closing device 2000 communicates with the user terminal 1000 at the second time point t2. connection can be induced.

In the door opening and closing device 2000, the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, and at the same time, the first strength r1 is equal to or greater than the first threshold value l1. A communication connection with the user terminal 1000 can be induced at the second point in time t2 only when greater than or equal to is satisfied.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the first strength r1, which is the RSSI value at the first time point t1, is greater than the first threshold value l1. or can be the same

The first threshold value l1 may be a predetermined value. For example, the first threshold value l1 may be -50dB.

By determining the first threshold value 11, unnecessary triggering caused by noise can be prevented. In addition, by determining the first threshold value l1, a communication connection with the user terminal 1000 that exists only within a certain distance can be induced.

According to an embodiment, the door opening/closing device 2000 may obtain RSSI of the received signal at every moment when a signal is received from the user terminal 1000 and obtain a slope between a first time point and a second time point.

Also, according to another embodiment, the door opening and closing device 2000 obtains the RSSI of the received signal at every moment when a signal is received from the user terminal 1000, and from the time when the RSSI of the received signal is equal to or greater than the first threshold value. , it is possible to obtain a slope between the first and second viewpoints.

22 is a graph showing RSSI obtained from a user terminal over time according to another embodiment. Alternatively, it may be a graph showing the RSSI of the signal obtained from the door opening and closing device over time.

Referring to FIG. 22 , as in FIG. 17 , the door opening and closing device 2000 may determine whether the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value. have.

When the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, the door opening and closing device 2000 communicates with the user terminal 1000 at the second time point t2. connection can be induced.

In the door opening and closing device 2000, the slope s1 between the first time point t1 and the second time point t2 is greater than or equal to the second value, and at the same time, the second strength r2 is equal to or greater than the first threshold value l1. A communication connection with the user terminal 1000 can be induced at the second point in time t2 only when greater than or equal to is satisfied.

According to an embodiment, when a communication connection is induced between the door opening and closing device 2000 and the user terminal 1000, the second strength r2, which is the RSSI value at the second time point t2, is greater than the first threshold value l1. or can be the same

The first threshold value l1 may be a predetermined value. For example, the first threshold value l1 may be -35dB.

By determining the first threshold value 11, unnecessary triggering caused by noise can be prevented. In addition, by determining the first threshold value l1, a communication connection with the user terminal 1000 that exists only within a certain distance can be induced.

23 is a flowchart illustrating a communication connection induction method according to another embodiment.

Referring to FIG. 23, in the communication connection induction method according to the embodiment, the sub-reader 2500 obtains the RSSI of the first strength at the first time point from the user terminal 1100 (S710), the sub-reader 2500 performs the Acquiring RSSI of the second strength at a second time point from the terminal 1100 (S720), obtaining a slope between the first time point and the second time point by the sub-reader 2500 (S730), Determining whether the slope between the second points in time is greater than or equal to the second value (S740). If the slope between the first points in time and the second points in time is greater than or equal to the second value, communication is performed with the door reader 2300. It may include transmitting a connection induction signal (S750).

According to an embodiment, a step in which the sub-reader 2500 obtains the RSSI of the first strength at the first time point from the user terminal 1100 may be performed (S710).

Also, according to an embodiment, a step of obtaining, by the sub-reader 2500, RSSI of the second strength from the user terminal 1100 at a second time point may be performed (S720).

The sub-reader 2500 may obtain information about the strength of the signal received from the user terminal 1100 (RSSI).

For example, the sub-reader 2500 may obtain received signal strength based on an advertise packet sent by the user terminal 1100.

The sub-reader 2500 may obtain a signal transmitted by the user terminal 1100 located within a communication range, and may determine received signal strength of the signal transmitted by the user terminal 1100 obtained.

In addition, the sub-reader 2500 may calculate the distance to the user terminal 1100 based on the received signal strength of the signal transmitted by the user terminal 1100 .

For example, the sub-reader 2500 may determine that the distance from the user terminal 1100 is 10 m when the received signal strength of the signal transmitted by the user terminal 1100 is 10 dB.

In addition, the received signal strength may be obtained based on different data according to communication connection conditions.

For example, prior to mutual communication connection between the sub-reader 2500 and the user terminal 1100, the door opening/closing device 2000 may acquire received signal strength based on an advertise packet sent by the user terminal 1000.

According to an embodiment, the sub-reader 2500 obtains a slope between the first time point and the second time point based on the first intensity RSSI obtained at the first time point and the second intensity RSSI obtained at the second time point. The step of doing may be performed (S730).

For example, the slope between the first time point and the second time point may be a value obtained by dividing the difference between the first time point and the second time point by the difference between the first time point and the second time point.

Also, for example, the slope between the first time point and the second time point may be a value obtained by dividing a value obtained by subtracting the second intensity from the first time point by a value obtained by subtracting the second time point from the first time point.

Also, for example, the slope between the first time point and the second time point may be an absolute value obtained by dividing a value obtained by subtracting the second intensity from the first time point by a value obtained by subtracting the second time point from the first time point.

According to an embodiment, a step of determining whether the slope between the first and second viewpoints is greater than or equal to the second value may be performed by the sub-reader 2500 (S740).

According to an embodiment, the second value may be a predetermined value. For example, the second value may be 100 or 100 [dB/sec].

According to an embodiment, the sub-reader 2500 communicates to the door reader 2300 when the slope between the first time point and the second time point is greater than or equal to the second value based on the RSSI obtained from the user terminal 1100. A connection inducing signal may be transmitted (S750).

When the sub-reader 2500 transmits a communication connection inducement signal to the door reader 2300, the door reader 2300 requests connection authentication information from the user terminal 1100 through the sub-reader 2500. .

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 transmits open authentication information to the user terminal 1100 through the sub-reader 2500. Requests can be made.

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 can determine whether the open authentication information is valid.

When the door reader 2300 determines that the opening authentication information is valid, the door can be opened.

Induction of a communication connection between the user terminal 1000 and the door opening/closing device 2000 may be when the door opening/closing device 2000 requests connection authentication information from the user terminal 1000 . Alternatively, the door opening/closing device 2000 may request open authentication information from the user terminal 1000 .

23 illustrates a form in which the sub-reader 2500 determines the RSSI based on the RSSI of the signal received from the user terminal, but is not limited thereto, and the user terminal determines the RSSI of the signal received from the sub-reader 2500 An embodiment of determining the RSSI based on this is also possible.

Alternatively, the sub-reader may acquire the RSSI of the signal received from the user terminal and transmit it to the user terminal, so that the user terminal may perform step S740. That is, when the RSSI receiving subject and the RSSI determining subject are different, the determining subject receiving the RSSI may further perform the step of receiving the RSSI, and the determining subject receiving the RRSI may perform at least one of steps S740 to S750 steps can be performed.

For example, when a sub-reader acquires the RSSI of a signal received from a user terminal, transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal based on the obtained RSSI Step S740 may be performed, and step S750 may be performed based on the determination result of step S740.

24 is a flowchart illustrating a method for inducing a communication connection according to another embodiment.

Referring to FIG. 24 , in the communication connection induction method according to the embodiment, the sub-reader 2500 obtains the RSSI of the first strength at the first time point from the user terminal 1100 (S810), the sub-reader 2500 performs the user Acquiring RSSI of the second intensity at a second time point from the terminal 1100 (S820), and transmitting the first and second intensities obtained by the sub-reader 2500 to the door reader 2300 (S830) , Obtaining, by the door reader 2300, the slope between the first time and the second time (S840), the door reader 2300 determines whether the slope between the first and second time is greater than or equal to the second value. It may include determining (S850).

The sub-reader 2500 of FIG. 24 obtains the RSSI of the first intensity at the first time point from the user terminal 1000 (S810) by the sub-reader 2500 of FIG. 23 from the user terminal 1000 at the first time point. It may be the same as obtaining the RSSI of the first intensity in (S710).

The sub-reader 2500 of FIG. 24 obtains the RSSI of the second intensity at the second time point from the user terminal 1000 (S820). It may be the same as obtaining the RSSI of the second intensity in (S720).

According to an embodiment, the sub-reader 2500 may transmit the first and second intensities, which are the acquired RSSI, to the door reader 2300 (S830).

The sub-reader 2500 may transmit the first strength and the second strength to the door reader 2300 through a communication method supported by the door reader 2300 .

In addition, the sub-reader 2500 may transmit the first and second intensities to the door reader 2300 through the second communication unit 2513 of the sub-reader communicating in a communication method supported by the door reader 2300.

According to an embodiment, the door reader 2300 may obtain a slope between the first time and the second time based on the first and second intensities, which are the received RSSI (8440).

According to an embodiment, the door reader 2300 may determine whether the slope between the first time point and the second time point is greater than or equal to the second value (S850).

According to an embodiment, the second value may be a predetermined value. For example, the second value may be 100 or 100 [dB/sec].

According to an embodiment, the door reader 2300 sends a signal for inducing a communication connection with the user terminal 1100 at the second time point when the slope between the first time point and the second time point is greater than or equal to the second value. It can be transmitted to the reader 2500.

The door reader 2300 transmits a signal for inducing a communication connection with the user terminal 1100 to the sub-reader 2500, so that the door reader 2300 authenticates connection to the user terminal 1100 through the sub-reader 2500. A step of requesting information may be made.

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 transmits open authentication information to the user terminal 1100 through the sub-reader 2500. Requests can be made.

After the user terminal 1100 and the door reader 2300 exchange connection authentication information through the sub-reader 2500, the door reader 2300 can determine whether the open authentication information is valid.

When the door reader 2300 determines that the opening authentication information is valid, the door can be opened.

Induction of a communication connection between the user terminal 1000 and the door opening/closing device 2000 may be when the door opening/closing device 2000 requests connection authentication information from the user terminal 1000 . Alternatively, the door opening/closing device 2000 may request open authentication information from the user terminal 1000 .

24 shows a form in which the sub-reader 2500 determines the RSSI based on the RSSI of the signal received from the user terminal, but is not limited thereto, and the user terminal determines the RSSI of the signal received from the sub-reader 2500 An embodiment of determining the RSSI based on this is also possible.

Alternatively, the sub-reader may obtain the RSSI of the signal received from the user terminal and transmit it to the user terminal, and the user terminal may perform step S830. That is, when the RSSI receiving entity and the RSSI determining entity are different, the determining entity receiving the RSSI may further perform the step of receiving the RSSI, and the determining entity receiving the RRSI may perform at least one of steps S830 to S850 steps can be performed.

For example, when a sub-reader acquires the RSSI of a signal received from a user terminal, transmits the received RSSI to the user terminal, and the user terminal performs a determination based on the RSSI, the user terminal based on the obtained RSSI Step S840 may be performed, and step S850 may be performed based on the determination result of step S840.

In the above, the configuration and characteristics of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art, and therefore such changes or modifications are intended to fall within the scope of the appended claims.

10000: Access control system
20000: Access control system
1000: user terminal
2000 : Door opener
3000: authentication server
1100: user terminal
2100: door opener
2300: door reader
2500: sub reader
3100: authentication server

Claims (34)

An access control method of an access control device for controlling a communication connection with an external device based on RSSI of a signal received from the external device, the method comprising:
obtaining RSSI of a signal received from the external device;
Transmitting the obtained RSSI to the external device; and
Inducing a communication connection between the access control device and the external device based on the obtained RSSI;
Inducing a communication connection between the access control device and the external device,
Performed in response to the determination of whether or not to induce a communication connection of the external device based on the obtained RSSI,
How to manage access.
According to claim 1,
Obtaining the RSSI of the signal received from the external device,
obtaining RSSI having a first intensity at a first time point; and
Acquiring RSSI having a second strength at a second time point,
Inducing a communication connection between the access control device and the external device,
When the first time point is earlier than the second time point and the second intensity is determined to be greater than the first value, which is a predetermined value, the communication connection between the access control device and the external device is determined. step,
How to manage access.
According to claim 2,
Obtaining the RSSI of the signal received from the external device,
obtaining RSSI having a third strength at a third time point that exists between the first time point and the second time point; and
Acquiring RSSI having a fourth strength at a fourth time point that exists between the first time point and the second time point,
When the communication connection between the access control device and the external device is induced, the third time point is earlier than the fourth time point, and the third strength is less than the fourth time point.
How to manage access.
According to claim 2,
At least one of the first intensity and the second intensity is greater than or equal to a first threshold value that is a predetermined value,
How to manage access.
According to claim 2,
Obtaining the RSSI of the signal received from the external device,
Comprising the step of correcting the obtained RSSI in a preset manner
How to manage access.
According to claim 2,
Inducing a communication connection between the access control device and the external device,
requesting, by the access control device, connection authentication information from the external device; and
Acquiring, by the access control device, the connection authentication information from the external device;
The access management method,
After inducing a communication connection between the access control device and the external device,
Further comprising the step of connecting communication between the access control device and the external device based on the connection authentication information.
How to manage access.
According to claim 6,
The step of connecting communication between the access control device and the external device based on the connection authentication information,
obtaining, by the access management device, open authentication information from the external device; and
Inducing the door to be opened by the access control device based on the opening authentication information.
How to manage access.
According to claim 7,
The open authentication information includes at least one of authentication information, user identification information, user terminal identification information, and a password.
How to manage access.
According to claim 1,
The communication connection between the access control device and the external device is at least one of Bluetooth communication, Wi-Fi communication and BLE communication
How to manage access.
delete According to claim 1,
The access control device includes a door reader and a sub-reader that communicates with the external device in a second communication method different from the first communication method of the door reader,
Obtaining the RSSI of the signal received from the external device,
Acquiring, by the sub-reader, RSSI based on a signal received from the external device in the second communication method
How to manage access.
According to claim 11,
Inducing a communication connection between the access control device and the external device,
The sub-reader determining whether to induce a communication connection based on the obtained RSSI
How to manage access.
According to claim 1,
The external device includes a door reader and a sub-reader communicating with the access control device in a second communication method different from the first communication method of the door reader,
Obtaining the RSSI of the signal received from the external device,
Acquiring, by the access control device, an RSSI based on a signal received from the sub-reader in the second communication method
How to manage access.
According to claim 13,
Inducing a communication connection between the access control device and the external device,
The access control device determining whether to induce a communication connection based on the obtained RSSI
How to manage access.
An access control method of an access control device for controlling a communication connection with an external device based on RSSI of a signal received from the external device, the method comprising:
obtaining RSSI of a signal received from the external device; and
Inducing a communication connection between the access control device and the external device based on the obtained RSSI;
Obtaining the RSSI of the signal received from the external device,
obtaining RSSI having a first strength at a first time point; and
Acquiring RSSI having a second strength at a second time point,
Inducing a communication connection between the access control device and the external device,
The first time point is earlier than the second time point, and the first change amount obtained by dividing the difference between the second intensity and the first intensity with the difference between the second time point and the first time point is greater than or equal to a first value that is a predetermined value. If it is determined, the step of inducing a communication connection between the access control device and the external device
How to manage access.
According to claim 15,
Obtaining the RSSI of the signal received from the external device,
Obtaining RSSI having a third strength at a third time point that exists between the first time point and the second time point; and
Acquiring RSSI having a fourth strength at a fourth time point that exists between the first time point and the second time point,
When the communication connection between the access control device and the external device is induced, the third time point is earlier than the fourth time point, and the third strength is less than the fourth time point.
How to manage access.
According to claim 15,
Inducing a communication connection between the access management device and the external device based on the obtained RSSI,
When the second strength is not greater than a second value that is a predetermined value greater than the first strength, not inducing the communication connection.
How to manage access.
According to claim 15,
The first intensity is greater than or equal to a first threshold value, which is a predetermined value.
How to manage access.
According to claim 15,
The second intensity is greater than or equal to the first threshold value, which is a predetermined value.
How to manage access.
According to claim 15,
Obtaining the RSSI of the signal received from the external device,
Comprising the step of correcting the obtained RSSI in a preset manner
How to manage access.
According to claim 15,
Inducing a communication connection between the access control device and the external device,
requesting, by the access control device, connection authentication information from the external device; and
Acquiring, by the access control device, the connection authentication information from the external device;
After inducing a communication connection between the access control device and the external device,
Further comprising the step of connecting communication between the access control device and the external device based on the connection authentication information.
How to manage access.
According to claim 21,
The step of connecting communication between the access control device and the external device based on the connection authentication information,
obtaining, by the access management device, open authentication information from the external device; and
Comprising the step of opening the door by the access management device based on the opening authentication information
How to manage access.
The method of claim 22,
The open authentication information includes at least one of authentication information, user identification information, user terminal identification information, and a password.
How to manage access.
According to claim 15,
The communication connection between the access control device and the external device is at least one of Bluetooth communication, Wi-Fi communication and BLE communication
How to manage access.
According to claim 15,
Further comprising the step of the access control device transmitting the obtained RSSI to the external device,
Inducing a communication connection between the access control device and the external device,
Performed in response to the determination of whether or not to induce a communication connection of the external device based on the obtained RSSI
How to manage access.
According to claim 15,
The access control device includes a door reader and a sub-reader that communicates with the external device in a second communication method different from the first communication method of the door reader,
Obtaining the RSSI of the signal received from the external device,
Acquiring, by the sub-reader, RSSI based on a signal received from the external device in the second communication method
How to manage access.
The method of claim 26,
Inducing a communication connection between the access control device and the external device,
The sub-reader determining whether to induce a communication connection based on the obtained RSSI
How to manage access.
According to claim 15,
The external device includes a door reader and a sub-reader communicating with the access control device in a second communication method different from the first communication method of the door reader,
Obtaining the RSSI of the signal received from the external device,
Acquiring, by the access control device, an RSSI based on a signal received from the sub-reader in the second communication method
How to manage access.
According to claim 28,
Inducing a communication connection between the access control device and the external device,
The access control device determining whether to induce a communication connection based on the obtained RSSI
How to manage access.
An access management device that controls a communication connection with an external device based on RSSI of a signal received from the external device,
communications department; and
obtaining RSSI of a signal received from the external device;
Transmitting the obtained RSSI to the external device;
And a control unit for inducing a communication connection between the access control device and the external device based on the obtained RSSI,
The control unit,
In response to a determination of whether or not to induce a communication connection of the external device based on the obtained RSSI, inducing a communication connection between the access control device and the external device,
access control device.
An access management device that controls a communication connection with an external device based on RSSI of a signal received from the external device,
communications department; and
Acquire RSSI having a first intensity at a first time point and RSSI having a second intensity at a second time point according to a signal received from the external device - the first time point is earlier than the second time point -;
When the first variation obtained by dividing the difference between the second intensity and the first intensity with the difference between the second time point and the first time point is determined to be greater than the first value, which is a predetermined value, the connection between the access control device and the external device is determined. Including a control unit for inducing a communication connection
access control device.
An access control method of an access control device for controlling a communication connection with an external device based on RSSI of a signal received from the external device, the method comprising:
obtaining RSSI of a signal received from the external device; and
Inducing a communication connection between the access control device and the external device based on the obtained RSSI;
Obtaining the RSSI of the signal received from the external device,
obtaining RSSI having a first intensity at a first time point; and
Acquiring RSSI having a second strength at a second time point,
The first time point is earlier than the second time point,
When the communication connection between the access control device and the external device is induced, a first change obtained by dividing the difference between the second intensity and the first intensity with the difference between the second point in time and the first point in time is a first value that is a predetermined value. ideal person,
How to manage access.
An access management device that controls a communication connection with an external device based on RSSI of a signal received from the external device,
communications department; and
Acquire RSSI having a first intensity at a first time point and RSSI having a second intensity at a second time point according to a signal received from the external device, wherein the first time point is earlier than the second time point -;
A controller for inducing a communication connection between the access control device and the external device based on RSSI having a first strength at the first time point and RSSI having a second strength at the second time point;
When the communication connection between the access control device and the external device is induced, a first change obtained by dividing the difference between the second intensity and the first intensity with the difference between the second point in time and the first point in time is a first value that is a predetermined value. ideal man,
access control device.
A computer-readable recording medium on which a program for performing the method of any one of claims 1 to 9, 11 to 29, and 32 is recorded.

Images