KR102611113B1 - System and method for interlocking doors in a double door system - Google Patents

Abstract

The present invention provides a double door interlocking system and method to dramatically increase the security of controlling the number of people entering a designated area. In particular, it provides a double door interlocking system and method to dramatically increase the security of controlling the number of people entering a designated area at a low cost. It provides a double door interlocking system and method for the purpose of analyzing the video from the calculated number of people inside the room (a) obtained by adding up the number of people allowed to enter through the access terminal and the video signal obtained by filming the inside room through the detection unit. By comparing and controlling the obtained internal number of people measured (b) and the preset minimum number of people (min1, min2) and maximum number of people (MAX1, MAX2), it is possible to completely block the entry of unauthorized people.

Description

Double door interlocking system and method {SYSTEM AND METHOD FOR INTERLOCKING DOORS IN A DOUBLE DOOR SYSTEM}

The present invention relates to a system and method for managing access within a specific designated area, and more specifically, to a double door interlocking system and method for controlling access to the designated area.

An access control system refers to a system that recognizes those who wish to enter a specific space and manages access. In an access control system, an access authentication technique is applied to check whether the person entering the door is permitted to enter, and an interlocking mechanism is applied to open the door only to authorized people.

Methods for authenticating visitors include methods using ID cards or ID tags such as magnetic cards, smart cards, or non-contact wireless (RFID) cards, and biometrics, which stores the visitor's fingerprints, iris, etc. and uses them for authentication, are widely used. Recently, interest in biometrics has increased due to reasons such as ease of portability and difficulty in duplication, but despite this, ID cards and ID tags are still widely used for economic reasons.

Meanwhile, as a mechanical mechanism for allowing an authenticated person to pass through the entrance, there is a method of completely opening the entrance using a conventionally known door lock, and installing a rotating bar or an entry/exit panel in a narrow passage. There is also a so-called turnstile method that opens the gate to allow only one authorized person to pass through.

The turnstile method has the advantage of providing a mechanical solution that allows only authorized visitors to pass, but it has the disadvantage of not only causing significant inconvenience to visitors, but also making the system very complicated and expensive. In addition, since even non-regular visitors must have an authentication method, access authentication methods that require a pre-registration procedure such as biometrics are difficult to use.

On the other hand, in the method where the door lock completely opens and closes the door by driving a deadbolt or generating magnetic force, even unauthenticated people can pass through with authenticated people when the door is open, and the system is relatively simple and inexpensive. Although it has the advantage of being inexpensive, it has the disadvantage of not being able to control only authenticated people to pass through.

Accordingly, it is a technology that strengthens security to allow only authorized users to pass through the door while using the door lock method, Republic of Korea Patent Publication No. 10-1218296 (name: Access management system and method) (hereinafter referred to as the “first prior art”) ) and Registered Patent Publication No. 10-1964374 (name: access control system and method) (hereinafter referred to as “second prior art”) are disclosed.

The first prior art is to perform access authentication for entrants, open the door only for authenticated entrants, and use a camera-based image processing technique to count the number of entrants who enter the door after opening the door, and then authenticate the entrants. It provides an access control system and method that monitors whether people other than people enter and exit together.

In addition, the second prior art relates to an access control system and method that uses a human body detection sensor to count the number of people passing through the door in real time and differentially applies security levels to the door accordingly.

However, the first and second prior arts above monitor with a video device whether the visitor is a single person for each authentication when passing through the door. The purpose is good, but the angle of the camera or the person intentionally following or legitimate There is a limit to distinguishing between cases where a person enters while threatening the person with a firearm, etc. Of course, in the first prior art, a certain monitoring area is set, but there is a limit to monitoring because it is an open space.

Meanwhile, in order to solve the problems of the first and second prior arts, as a technology with more enhanced security, Registered Patent Publication No. 10-1492799 (name: has an access control function through tracking people entering and leaving the surveillance area) Access control integrated image storage system and method) (hereinafter referred to as “third prior art”) and Registered Patent Publication No. 10-1567005 (name: Access control method and system with anti-trailing function) (hereinafter referred to as “the third prior art”) (referred to as “fourth prior art”) has been proposed.

As shown in Figures 1 to 3, the third prior art monitors people entering the surveillance area and people leaving the surveillance area, and monitors whether two or more people enter the surveillance area at the same time with one entry authentication. It relates to an access control integrated video storage system and method that has an access control function through tracking people entering and leaving a surveillance area that can strengthen security by monitoring whether the number of occupants in the area matches, and the access control unit analyzes the video to open the door. Determine the number of people entering and exiting through the system, and when determining the number of people entering and leaving, count the number of people entering and leaving by dividing them into people entering and leaving, and calculating the number of people in the surveillance area based on the counted number of people entering and leaving. Calculate, determine the number of occupants in the surveillance area from images acquired through security cameras filming the inside of the surveillance area, check whether the identified number of occupants matches the calculated number of occupants, and input through the access control controller. If the last occupant leaves the surveillance area based on the identification information of the person entering and exiting, it is checked whether the number of occupants matches the number of occupants exiting. If the number of occupants does not match or the number of occupants does not match, a warning message is provided to the administrator terminal. I do it.

That is, the control unit determines whether the person requesting access authentication is an entering person or a leaving person (S311), if the visitor is an entering person, counts the number of entering people (S313), and if the entering person is a leaving person, counts the number of leaving people (S315) ), the number of occupants is calculated by subtracting the number of occupants from the number of occupants (S317). And when the number of occupants is calculated, the control unit determines whether the visitor who requested access authentication is the final check-out (S319). If the visitor is not the final check-out, the control unit terminates. If the visitor is the final check-out, the number of counted occupants and the counted number of occupants are calculated. Determine whether the number of people leaving the room is the same (S321). If the judgment result matches, the control unit terminates, and if it does not match, a warning message is transmitted to the manager terminal unit 500 (S329).

However, the third prior art also establishes a certain surveillance area, but there are limitations in monitoring because it appears to be an open space. On the other hand, if the surveillance area is a secure space, an unauthorized person has already entered the security area. Another problem arises when you enter the state.

On the other hand, the access system for preventing tailgating according to the fourth prior art includes an interlock door system with separate access doors on both sides of a buffer zone in a certain closed space, and entry and exit through one access door. This structure is applied to an entry/exit mode access system equipped with multiple readers, which are devices for authorizing access.

As shown in FIG. 4, at least two readers 207 are located on the side of the access door 205 and perform individual access approval, and are installed on the upper wall of the access door 205 and have an entry detection range 209. It consists of a first sensor 201 that takes an image of the number of objects of the visitor inside, and a second sensor 203 installed on the side wall of the access door 205 that takes an image of the number of objects of the visitor, the first sensor ( 201) photographs a preset entry detection range 209 in front of the entrance door 205, and the second sensor 203 is in a direction perpendicular to the entry detection range 209 so as to approach the entrance door 205. By photographing the entry/exit detection range 211, if the number of objects recognized from the first sensor 201 and the second sensor 203 is the same, the number of objects of the entering person is determined.

The first sensor 201 and the second sensor 203 are video cameras and determine the number of objects in the human body based on an image recognition program. The first sensor 201 recognizes the person's head to determine the number of objects, and the second sensor 203 recognizes the person's body to determine the number of objects.

FIG. 5 is a flowchart corresponding to the system structure of FIG. 4 to explain the operating state according to the fourth prior art.

As shown, in step S501, the first sensor 201 detects the number of objects located within the preset entry detection range 209, the human body above the entrant, that is, from the ceiling, and the object count module is operated by an image recognition program. Based on this, the number of objects located within the entry detection range 209 is determined, and the determined result information is provided to the control module.

Entering step S503, the object count module determines the number of objects within the entry/exit detection range 211 from the second sensor 203. The second sensor 203 is also assumed to be a video camera and is installed on a wall perpendicular to the ground. Therefore, the number of objects within the entry/exit detection range 211 located in front of the entrance door 205 is captured, and the object count module analyzes the image captured from the second sensor 203 to determine the number of objects located within the entry/exit detection range 211. Determine the number of objects in the human body.

In step S505, the control module compares the number of objects within the entry detection range 209 recognized by the object count module with the number of objects within the entry/exit detection range 211 to determine whether the number of objects is the same. That is, it is determined whether the number of objects located within the entry detection range 209 and the number of objects located within the entry detection range 211 are the same. The head of the body is counted by the first sensor 201, and the second sensor 203 It is determined whether the results of counting the visitor's body are the same.

Entering step S507, the control module recognizes the confirmation of the number of objects and then receives the count result of approved entrants from the leader 207. The reader 207 continuously recognizes objects requesting access and performs an approval count on the recognition results.

That is, in the present invention, one access door 205 is equipped with a plurality of readers 207, and the plurality of readers 207 receive an approval request from an object requesting access. Approval requests are made by access cards or biometrics, and the reader 207 performs a count of approved objects.

In step S509, the control module determines the number of objects notified from the object count module, that is, the number of objects detected in the entry detection range 209 and the exit detection range 211, and the number of approval counts of entrants approved by the reader 207. Determine if they are the same. In this process, the object count module continuously calculates if there is a change in the number of objects detected in the entry detection range 209 or/and the entry/exit detection range 211, and the control module calculates the increased or decreased number of objects. Correspondingly, it is compared with the count number of approved visitors recognized by the reader 207.

As a result of the determination in the above process, if the count number of objects approved by the reader 207 and the number of currently detected objects are different, for example, the number of objects requesting access increases or there is an object that does not use the reader 207, S519 Enter the step and keep the access door 205 closed. If necessary, a predetermined warning sound may be sounded or an information message may be provided.

On the other hand, if the control module determines in step S509 that the number of leader counts and the total number of objects are equal, it instructs the driver to open the entrance door. The driver opens the access door 205 by supplying rated power to the corresponding door lock.

In step S513, the control module recognizes the opening of the access door 205 from the open/close sensor and then determines the number of objects passing through the access door 205 through the object count module. This recognizes the movement state of objects in the entry/exit detection range 211 from the second sensor 203, and determines the number of objects flowing out through the entry door 205.

Thereafter, in step S515, the control module determines whether all those waiting to enter legally pass through the door 205 based on comparison of the total number of objects and the number of objects passing through the door 205. If the number of objects that penetrated the access door 205 is small compared to the total number of objects, the control module considers that unauthorized following has occurred, operates a warning system according to the occurrence of following in step S517, and enters and exits in step S519. Close the door (205).

Here, at the point when an entry object passes through the entry door 205, the control module determines from the object count module whether there is a change in the entry and exit within the entry detection range 211, that is, whether the entry or exit object passed through the entry door 205, and also determines whether the entry or exit object has passed through the entry door 205. Recognize fluctuating conditions. Accordingly, real-time monitoring of objects penetrating the access door 205 is performed, and the following phenomenon is immediately determined.

The fourth prior art is more advanced in terms of more accurate discrimination performance in that the number of objects is inspected from the top and side before passing through the door, and is inspected again after passing through the door. However, the fourth prior art is also more advanced in terms of more accurate discrimination performance. The technical idea is the same as the first to third prior arts in that it inspects the state passing through, and although a certain monitoring area is set, there are still limitations to monitoring because it is an open space.

On the other hand, by identifying the problems of the first to fourth prior technologies above, and going one step further, the fifth prior technology introduced the concept of a booth for secondary access control, Registered Patent Publication No. 10-2289772 ( Name: secondary access control method, booth device for secondary access control, and unmanned access control system including the same) are disclosed.

The main features of the fifth prior art are, as shown in FIGS. 6 and 7, the first door 110, the first door lock module 120, the booth body 130, the second door 140, and the second It is a booth device 100 for secondary access control including a door lock module 150, a door closer module 160, a sensor module 170, a control unit 180, a communication unit 190a, and a storage unit 190b.

The booth body 130 is positioned to contact the first door 110 formed on the entrance door, and a second door 140 is formed in the direction of entry through the first door 110, and the first door ( 110) is installed with a first door lock module 120 for primary authentication, and the first door lock module 120 is a first door authenticator 121 installed in the direction of entering through the first door 110. and a first door exit button 122 installed in the direction of exiting the room through the first door 110. The second door 140 is equipped with a second door lock module 150 for secondary authentication, and the second door lock module 150 is a second door installed in the direction of entering through the second door 140. It includes an authenticator 151 and a second door exit button 152 installed in the direction of leaving the room through the second door 140.

The door closer module 160 is a first door that is formed between the first door 110 and the booth body 130 and serves as a buffer when the first door 110 is opened and closed. It includes a closer 161, and a second door closer 162 that is formed between the second door 140 and the booth body 130 and performs a buffering role when the second door 140 is opened and closed.

The booth device 100 for secondary access control includes primary fingerprint recognition by the first door authenticator 121 of the first door lock module 120 formed on the first door 110 and the sensor module 170. All secondary fingerprint recognition by the second door authenticator 151 of the second door lock module 150 formed on the second door 140 after checking the number of people by counting the number of people using the number of people counting sensor constituting the pass. By allowing entry into the room, only one person can enter the room during the first and second authentication on the access control system. The booth device (100) for secondary access control is installed using the first door (110), which corresponds to the existing general door. ), but the control unit 180 recognizes the fingerprint of the person authorized to enter the room according to the primary fingerprint recognition by the first door authenticator 121 of the first door lock module 120 formed on the first door 110. In this case, the door lock of the first door lock module 120 installed on the first door 110 is set to the off state (i.e., the open state for the first door 110), After counting the number of people entering through the first door 110 by the number of people counting sensor 171 of the sensor module 170 formed on the upper surface of the booth body 130 or the ceiling surface of the area where the booth body 130 is installed , Analyze whether it is a normal one-person entry or an abnormal entry of two or more people.

The people counting sensor 171 may be formed by including an infrared detection sensor and an image processor on the ceiling where the booth device 100 for secondary access control is installed along with the CCTV 174, and transmits the detected infrared signal to the image processor. Provides the number of people recognized through image processing.

The control unit 180 is located inside the second door 140 among the second door lock modules 150 formed on the second door 140 in a closed state in the booth body 130 in the case of normal one-person entry. According to the secondary fingerprint recognition by the second door authenticator 151, if the fingerprint is the same as the person authorized to enter during the first fingerprint recognition, the door lock of the second door lock module 150 installed on the second door 140 Set to the open state of the second door 140, which corresponds to the off state.

The control unit 180 includes an information collection module 181, a primary authentication processing module 182 that processes primary fingerprint authentication, a person counting module 183 that controls access to each person by counting the number of people, and a secondary fingerprint. It includes a secondary authentication processing module 184 that processes authentication, and a notification module 185.

The information collection module 181 collects fingerprint information about the person authorized to enter through the first door authenticator 121 of the first door lock module 120 and the second door authenticator 151 of the second door lock module 150. The first door access permitting person information and the second door access permitting information are collected and stored in the storage unit 190b, respectively, and the first door access permitting person information and the second door access permitting information are collected and stored separately, so that the first door lock module ( This is because when both the first door authenticator 121 of 120 and the second door authenticator 151 of the second door lock module 150 are formed as fingerprint readers, the identification ability of fingerprint recognition may be different. Through storage, when a fingerprint recognition error occurs by the first door authenticator 121 and the second door authenticator 151, the fingerprint recognition rate is improved by comparing the two stored fingerprint information of the person authorized to enter.

The first authentication processing module 182 is configured to recognize the first fingerprint by the first door authenticator 121 of the first door lock module 120 formed on the first door 110, and when the fingerprint is that of the person authorized to enter, the first The door lock of the first door lock module 120 installed on the door 110 is set to Off, and the door lock of the first door lock module 120 is set to Off. The first door 110 is automatically controlled to open from the booth body 130.

The people counting module 183 detects the first door 110 by the people counting sensor 171 of the sensor module 170 formed on the upper surface of the booth body 130 or the ceiling surface of the area where the booth body 130 is installed. After counting the number of people entering through, it is analyzed whether it is a normal one person entry or an abnormal two or more person entry. In the case of normal one person entry, the first door 110 of the booth body 140 is connected to the booth body 130. ) to the booth body 130 of the first door 110 by the first pressure sensor 172 formed on the frame of the booth body 140 formed at a position where the first door 110 abuts when closed. When recognizing that it has switched to the closed state, control the first door lock module 120 formed on the first door 110 to the door lock On state, that is, the Close state of the first door 110, and 2 Request secondary authentication processing to the secondary authentication processing module 184,

On the other hand, in the case of abnormal entry of two or more people, the door lock for the first door lock module 120 is controlled to be Off regardless of the closed state of the first door 110 by the first pressure sensor 172, and the 2 The door lock module 150 can be controlled to maintain the door lock ON hold state, and at the same time, the control state can be maintained until one normal person enters and exits for a preset time from the number of people counting sensor 171, and the normal 1 When an individual's entry is recognized, the control for normal single person's entry is performed.

When the secondary authentication processing module 184 is analyzed as a normal single person entry by the number of people counting module 183, the second door lock module 150 formed on the second door 140 in a closed state on the booth body 130 ), according to the secondary fingerprint recognition by the second door authenticator 151 located inside the second door 140, if the fingerprint is the same as the person authorized to enter during the first fingerprint recognition, the fingerprint is entered into the second door 140. The door lock of the installed second door lock module 150 is set to the open state of the second door 140 corresponding to the Off state, and the door lock of the second door lock module 150 is set to the open state. When lock is set to the off state, the second door 140 is automatically controlled to be opened from the booth body 130.

The second door 140 is controlled in an Off state for the second door lock module 150 and an automatic Open state for the second door closer 162. When it is recognized through the second pressure sensor 173 that the booth body 130 is closed, wait for the number of people inside the booth body 130 to be recognized as 0 by the number of people counting sensor 171, and open the second door ( By controlling the door lock for the second door lock module 150 of 140) to be on, that is, to be in a closed state for the second door 140, entry is possible on the booth device 100 for secondary access control. Complete the process and wait for someone else to enter or leave the room.

According to the fifth prior art, the number of people entering through the first door 110 is counted by the number of people counting sensor 171 of the sensor module 170 formed on the upper surface of the booth body 130, and then one normal person is counted. Since it is analyzed whether it is an entry or exit of two or more abnormal people, more accurate entry and exit control is possible.

However, since it operates only in a specific mode at a specific moment (operates only in either entry mode or exit mode), there is no choice if a person enters by intentionally sticking to a normal authorized person or comes in by threatening a normal authorized person. There are limits. Of course, an alarm can be raised through an additional search after entry, or a security guard can recognize this during the entry process and stop it, but it is like a follow-up visit after you have already entered the inside, and it is inconvenient that the security guard must monitor each person individually. This comes into existence.

Patent Document 1: Republic of Korea Patent Publication No. 10-1218296 (Name: Access control system and method) Patent Document 2: Registered Patent Publication No. 10-1964374 (Name: Access control system and method) Patent Document 3: Registered Patent Publication No. 10-1492799 (Name: Access control integrated video storage system and method having an access control function through tracking people entering and leaving the surveillance area) Patent Document 4: Registered Patent Publication No. 10-1567005 (Name: Access control method and system with tailback prevention function) Patent Document 5: Registered Patent Publication No. 10-2289772 (Name: Secondary access control method, booth device for secondary access control, and unmanned access control system including the same)

The present invention is intended to solve the above problems, and its purpose is to provide a double door interlocking system and method to dramatically increase the security of controlling the number of people entering a designated area.

Of course, there is also a method of using RFID to verify all personnel in the security area, but this method is expensive and requires users to always carry the RF tag, so it is not generally used outside of specific security areas. is difficult.

Therefore, the double door interlocking system and method of the present invention provides a double door interlocking system and method for dramatically increasing security for controlling access to people within a designated area at a low cost.

The above objects and other additional objects will be clearly recognized by those skilled in the art without departing from the technical spirit of the present invention by the appended claims.

The double door interlocking system according to the first aspect of the present invention for solving the above problem includes a door control unit 100 installed on the inside and outside doors while controlling the inside and outside entrance of the user (P) by the access controller 101; An integrated operation server 200 that controls the entire double door interlocking system; A detection unit 300 that detects the movement of the user (P) and the number of people in the inner space by the inner room sensor 301 installed in the inner room; A sensing signal analysis server 400 that analyzes the sensing signal detected by the sensing unit 300 and counts the number of people inside the room; and a network connecting them 500; The door control unit 100 is installed on the outside of the exterior door 110 and directly recognizes the biometric information of the user (P) or detects the user's ID device 600 such as a mobile phone to enter the room. An external 1 access terminal (IN) 111 that authenticates the user's access when entering the room, an external 2 access terminal (OUT) 112 installed inside the external door 110 that authenticates the user's access when leaving the room, and the above. When access is authenticated by External 1 access terminal or External 2 access terminal, an external door lock (113) that opens and closes the external access door, an external door sensor (114) that senses the closed/open status of the external access door, and an external door lock (114) on the inside of the external access door. An external exit button 115 is installed to manually open the external door, an internal 1 access terminal (IN) 121, which is installed on the outside of the internal door 120 and authenticates the user's access when entering the room, and an internal door ( 120), an internal 2 access terminal (OUT) 122 that is installed on the inside and authenticates the user's access when leaving the room, and an internal door lock that opens and closes the internal door when access is authenticated by the internal 1 access terminal or the internal 2 access terminal. (123), an internal door sensor 124 that senses the closed/open state of the internal door, and an internal exit button 125 that is installed on the inside of the internal door and manually opens the internal door. The external exit button 115 remains activated after tagging the external 1 access terminal 111, and is switched to a deactivated state when the internal door 120 is opened, and the internal exit button 125 ) is maintained in an activated state after tagging the internal 1 access terminal 121, and is characterized in that it is switched to a deactivated state when the external access door 110 is in an open state.

Preferably, the integrated operation server 200 monitors the number of people entering through video analysis of the access terminals (111, 112; 121, 122) and the detection unit 300 when the administrator in the area sets the maximum/minimum allowable number of people. In addition to the number, security is further improved by controlling access when the value is outside the allowable range in addition to the maximum/minimum allowable number of people set above.

Also preferably, the integrated operation server 200 is configured to determine the number of people inside (a = 1) calculated to have entered through the external access terminal 111 installed on the external access door 110 and the occupancy sensor 301 of the detection unit. ) (for example, CCTV) video analysis, compare the number of people (b = 1), and if both are the same (a = b), enter the room through the internal 1 access terminal (121) installed on the internal entrance door (120). The number of people inside (a = 1) calculated to have entered through the external 1 access terminal 111 installed on the external door 110 and the image of the occupancy sensor 301 (for example, CCTV) of the detection unit are controlled so as to be possible. Compare the number of people (b ≥ 2) derived from the analysis, and if the two are not the same (if a ≠ b), the internal 1 access terminal 121 installed on the internal door 120 is not activated, and the external access door 110 is not activated. It is characterized by displaying it on broadcast or video to encourage people to leave the room.

The double door interlocking method according to the second aspect of the present invention for solving the above problem is a double door interlocking method using the double door interlocking system, wherein the access controller 101 and the integrated operation server 200 Or, it is performed by a control device consisting of both the access controller 101 and the integrated operation server 200, and (a) a user (P) trying to enter the inside room (IS) from the outside (OS) through the inside room (BS) ) tags the external 1 access terminal 111 (S11), determining whether the user is a registered user (S12); (b) a step (S13) in which, as a result of the determination in step (a), non-registered users are not allowed to enter with the external door closed; (e) As a result of the determination in step (a), if the user is a registered user, the external door lock 113 is controlled to open the external door 110 for a certain period of time, allowing the registered user (P1) to enter the inner room. Step (S16); (f) after step (e), updating the calculated number of people in the inner room (a) by adding the number of people currently allowed to enter the inner room through the external 1 access terminal 111 to the previous number of people in the inner room (S17); (g) After step (e), the inner room is photographed through the inner room sensor 301 of the detection unit 300 (S21), and the sensing signal analysis server 400 analyzes the image signal obtained from the inner room sensor 301. A step (S22) of determining the measurement value (b) of the number of people in the room obtained by analyzing the video through; (h) comparing the calculated number of people in the room (a) in step (a) with the measured number of people in the room (b) obtained through image analysis in step (g) (S18); (j) If the calculated number of people inside (a) and the measured value of the number of people inside (b) are not the same (if a≠b), it is determined that a non-registered person has intruded, and the internal 1 access terminal (IN) 121 A step (S23) of deactivating to prevent a non-registered person (P2) who has entered the temporary space of the inner room from entering the room, and encouraging them to leave by informing them through a broadcast or screen; (r) after step (e), checking the closed state of the external door (S27); (s) As a result of the judgment in step (r), "the external door is closed, and as a result of the judgment in step (h), the calculated value of the number of people inside (a) and the measurement value of the number of people inside obtained through video analysis (b) If it is determined that they are the same (if a = b), activating the internal 1 access terminal (IN) 121 and waiting for tagging (S29); (t) After step (s), the internal 1 access terminal ( When tagging for IN) (121) is made, re-checking whether the user is a registered user (S30); (w) If it is determined that the user is a registered user as a result of the determination in step (t), the inner door lock ( 123) to control the internal door 120 to open for a certain period of time to allow the registered user (P1) to enter the room (S33); and (x) in step (w), the internal door ( When 120) is open, the external exit button 115 is deactivated (S34).

Preferably, (k) after step (j), determining whether an unexpected field abnormality occurs (S24); (m) As a result of the determination in step (k) above, if it is a normal case in which an unexpected on-site abnormal situation does not occur, the step of activating the external exit button 115 to enable exit to the outside by pressing the external exit button 115 (S25); and (n) when an unexpected on-site abnormality occurs as a result of the determination in step (k) above, a step (S26) of notifying the manager of the emergency situation or calling the manager through SMS text, etc.; It is characterized in that it further includes.

More preferably, before step (e), (c) if the user is a registered user as a result of the determination in step (a), check whether the current calculated number of people (a) is the maximum number of people (MAX1). Step (S14); and (d) as a result of the judgment in step (a) above, if the current calculated number of people in the room (a) reaches the maximum number of people in the room (MAX1) (if a = MAX1), after waiting for a while, it returns to the beginning and starts again. Step to start (S15); It further includes, and as a result of the determination in step (c), if the current calculated number of people (a) is less than the maximum number of people (MAX1) (if a < MAX1), proceed to step (e), Before step (s), if (p) as a result of the judgment in step (h), it is determined that the calculated number of people inside (a) and the measured number of people inside (b) obtained through video analysis are the same (a) =b), comparing the calculated number of people in the room (a) with the minimum number of people in the room (min1) (S19); and (q) as a result of the judgment in step (p), only if the calculated number of people in the room (a) is more than the minimum number of people in the room (min1) (if a ≥ min1), the internal 1 access terminal (IN) ( 121) activating step (S20); It is characterized in that the step (q) is followed by the step (s).

Most preferably, before step (w), (u) if it is determined that the user is a registered user as a result of the determination in step (t), the number of people currently occupying the room (n) and the number of new people expected to be introduced into the room Step (S31) of comparing the expected number of occupants (a+n) plus (a) with the preset maximum number of occupants (MAX2); and (v) as a result of the determination in step (u), if the expected number of occupants (a+n) is greater than the maximum number of occupants (MAX2) (if a+n > MAX2), wait for a while (S32) , returning to step (t); It further includes, as a result of the determination in step (u), only if the expected number of occupants (a+n) is not greater than the maximum number of occupants (MAX2) (if a+n ≤ MAX2), (w) Proceeding to step (w), (y) updating the current number of occupants (n) (S35); and (z) after step (y), determine whether the updated number of occupants (n) is greater than or equal to the minimum number of occupants (min2) (S36), and if the number of occupants (n) is greater than or equal to the minimum number of occupants (min2) (if n ≥ min2) the process is terminated, otherwise (if n < min2) the manager is notified of an emergency situation or the manager is called via SMS text, etc. (S37); It is characterized in that it further includes.

The double door interlocking method according to the third aspect of the present invention for solving the above problem is a double door interlocking method using the double door interlocking system, wherein the access controller 101 and the integrated operation server 200 Or, it is performed by a control device consisting of both the access controller 101 and the integrated operation server 200, and (A) a user (P) trying to leave the room (IS) to the outside (OS) through the inside room (BS) ) tags the internal 2 access terminal 122 (S51), determining whether the user is a registered user (S52); (B) As a result of the determination in step (A), non-registered users are not allowed to leave the room with the internal door closed (S53); (E) As a result of the determination in step (A), if the user is a registered user, the internal door lock 123 is controlled to open the internal door 120 for a certain period of time to allow the registered user (P1) to leave the inner room. becoming step (S56); (F) After step (E), updating the calculated number of people inside the room (a) by adding the number of people currently allowed to leave the inside room through the inside 2 access terminal 122 to the previous number of people inside the inside room (S57); (G) After step (E), the inner room is photographed through the inner room sensor 301 of the detection unit 300 (S61), and the sensing signal analysis server 400 uses the image signal obtained from the inner room sensor 301. A step (S62) of determining the measurement value (b) of the number of people in the room obtained by analyzing the video through; (H) Comparing the calculated number of people in the room (a) in step (A) with the measured number of people in the room (b) obtained through image analysis in step (G) (S58); (J) If the calculated number of people in the room (a) and the measurement value of the number of people in the room (b) are not the same (if a≠b), it is determined that an unregistered person (P2) who entered the temporary space in the room has intruded. , deactivating the external 2 access terminal (OUT) 112 so that a non-registered person (P2) who has entered the temporary space in the inner room cannot leave the room to the outside, and informing this through broadcasting or a screen (S63); (R) After step (E), checking the closed state of the internal access door (S67); (S) As a result of the judgment in the step (R), "the internal door is closed, and as a result of the judgment in the step (H), the calculated value of the number of people inside (a) and the measurement value of the number of people inside the room obtained through video analysis (b) If it is determined that they are the same (if a = b), a step (S69) of activating the external 2 access terminal (OUT) 112 and waiting for tagging; (T) After the step (S), the external 2 access terminal ( When tagging of OUT) (112) is made, re-checking whether the user is a registered user (S70); (W) If it is determined that the user is a registered user as a result of the determination in step (T), the external door lock ( 113) is controlled to open the exterior door 110 for a certain period of time, allowing the registered user (P1) to exit the room from the inside room to the outside (S73); and (X) in step (W), the outside door 110 is opened for a certain period of time. When the door 110 is open, the internal exit button 125 is deactivated (S74).

According to the double door interlocking system and method according to the present invention, the security of controlling the number of people entering and exiting a designated area is dramatically improved at a low cost by adding only an indoor number of people check device while using the existing entry and exit system as is. It is possible to increase the number of people inside, and furthermore, the calculated number of people inside the room (a) obtained by adding up the number of people allowed to enter through the access terminal and the measurement value of the number of people inside the room (b) obtained by analyzing the image from the video signal obtained by filming the inside room through the detection unit. ) and by comparing and controlling the preset minimum number of people (min1, min2) and maximum number of people (MAX1, MAX2), it is possible to completely block the entry of unauthorized people.

Additionally, a person who entered the room by mistake can leave the room without any significant privacy infringement, and since the number of people inside is counted after the exit is blocked, intentional illegal entry can be reliably prevented, and even if the person entered the room illegally. Even so, not only can the inside room be encouraged to voluntarily give up illegal entry through several steps, but in situations where security maintenance is particularly necessary, post-processing, such as blocking the entrance and exit, can be reliably carried out.

Meanwhile, additional features and advantages of the present invention will become clearer through the following description.

Figure 1 is an overall flow chart showing the access control method through tracking people entering and leaving the surveillance area of the access control integrated video storage system according to the third prior art.
Figure 2 is a flow chart showing a single access verification method of the access control method through tracking people entering and leaving the surveillance area of the access control integrated video storage system according to the third prior art.
Figure 3 is a flowchart showing a method for verifying the identity of occupants in the access control method through tracking occupants entering and exiting the surveillance area of the access control integrated video storage system according to the third prior art.
Figure 4 is an installation configuration diagram for explaining an access system according to the fourth prior art.
FIG. 5 is a flowchart for explaining the operating state in the installation structure of FIG. 4.
Figure 6 is a perspective view showing the exterior of a booth device 100 for secondary access control according to the fifth prior art.
Figure 7 is a block diagram showing the components of a booth device 100 for secondary access control according to the fifth prior art.
Figure 8 is a block diagram showing the components of the control unit 180 of the booth device 100 for secondary access control according to the fifth prior art.
Figure 9 is a diagram showing the secondary access control process by the control unit 180 of the booth device 100 for secondary access control according to the fifth prior art.
Figure 10 is a basic block diagram of a double door interlocking system according to one aspect of the present invention.
Figure 11 is a spatial partition diagram implementing a double door interlocking system according to one aspect of the present invention.
Figures 12A to 12D are conceptual diagrams for explaining the normal room entry process.
Figures 13A to 13D are conceptual diagrams for explaining the process of denying entry into a room in an abnormal situation.
Figure 14 is a hardware configuration diagram for explaining the double door interlocking method upon entry among the double door interlocking methods according to another aspect of the present invention.
Figure 15 is a flow chart of the double door interlocking method upon entry, among the double door interlocking methods according to another aspect of the present invention.
Figure 16 is a hardware configuration diagram for explaining the double door interlocking method upon exit, among the double door interlocking methods according to another aspect of the present invention.
Figure 17 is a flow chart of the double door interlocking method upon exit, among the double door interlocking methods according to another aspect of the present invention.
Figure 18 is a flow chart according to a modification of the double door interlocking method upon entry, among the double door interlocking methods according to another aspect of the present invention.

The present invention will be described with reference to the accompanying drawings regarding preferred embodiments.

However, the embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as limited to the embodiments described in detail below, and should not be construed as limiting the scope of the present invention to those skilled in the art. It is provided for complete explanation.

In addition, in this specification, the examples and embodiments described below are to be considered illustrative and not restrictive, and the invention is not limited to the details given herein, but may be substituted and equivalents within the scope and equivalents of the appended claims. It may be changed to another embodiment.

(Embodiment of double door interlocking system)

Hereinafter, an embodiment of a double door interlocking system will be described in detail with reference to FIGS. 10 to 13D.

FIG. 10 is a basic block diagram of a double door interlocking system according to an aspect of the present invention, and FIG. 11 is a spatial partition diagram implementing a double door interlocking system according to an aspect of the present invention, and FIGS. 12A to 12A to FIG. 12D is a conceptual diagram for explaining a normal room entry process, and FIGS. 13A to 13D are conceptual diagrams for explaining a process for not being allowed to enter a room in an abnormal situation.

First, as shown in FIGS. 10 and 11, the double door interlocking system according to the present invention includes a door control unit 100 installed on the internal and external doors while controlling the internal and external entrance of the user P by the access controller 101. ; An integrated operation server 200 that controls the entire system of the present invention; A detection unit 300 that detects the movement of the user (P) and the number of people in the inner space by the inner room sensor 301 installed in the inner room; A sensing signal analysis server 400 that analyzes the sensing signal detected by the sensing unit 300 and counts the number of people inside the room; and a network connecting them 500; It is made including.

More specifically, the door control unit 100 is installed on the outside of the exterior door 110 and directly recognizes the biometric information of the user (P) or detects the user's ID device 600 such as a mobile phone to enter the room. An external 1 access terminal (IN) 111 that authenticates the user's access when entering the room, an external 2 access terminal (OUT) 112 installed inside the external door 110 that authenticates the user's access when leaving the room, and the above. When access is authenticated by External 1 access terminal or External 2 access terminal, an external door lock (113) that opens and closes the external access door, an external door sensor (114) that senses the closed/open status of the external access door, and an external door lock (114) on the inside of the external access door. An external exit button 115 is installed to manually open the external door, an internal 1 access terminal (IN) 121, which is installed on the outside of the internal door 120 and authenticates the user's access when entering the room, and an internal door ( 120), an internal 2 access terminal (OUT) 122 that is installed on the inside and authenticates the user's access when leaving the room, and an internal door lock that opens and closes the internal door when access is authenticated by the internal 1 access terminal or the internal 2 access terminal. It includes (123), an internal door sensor 124 that senses the closed/open state of the internal door, and an internal exit button 125 that is installed on the inside of the internal door and manually opens the internal door.

The access terminals (111, 112; 121, 122) can be used individually or in combination with various readers such as NFC card readers, face detection pads, biometric readers, etc., and in response, the ID device 600 has an NFC function. A mobile phone, tag, or transponder can be used, and if it is a biometric recognition device such as a face detection pad or biometric reader, a separate ID device is not necessary.

The interior sensor 301 of the detection unit can be used singly or in combination with various sensors such as CCTV, LiDAR sensor, people count, and heat detection sensor, but ensure that an appropriate sensor is used in consideration of cost and effectiveness. do.

The integrated operation server 200 compares the number of people entering and exiting through video analysis of the access terminals 111, 112; 121, 122 and the detection unit 300 installed inside and outside the building, and detects if the values are different or By blocking unauthorized access in advance, security incidents are prevented.

Additionally, the integrated operation server 200 determines the number of people entering through video analysis of the access terminals (111, 112; 121, 122) and the detection unit 300 when the administrator within the area sets the maximum/minimum allowable number of people. In addition, in addition to the maximum/minimum allowable number of people set above, access is controlled when the value is outside the allowable range, thereby controlling a double door interlocking system that further enhances security.

In other words, by using at least 4 access terminals, it is possible to block unauthorized entry in advance without following the access procedures, and further control/manage personnel information such as personal information in the room and the minimum/maximum number of workers.

Alternatively, the external exit button 115 is maintained in an activated state after tagging the external 1 access terminal 111, and is preferably switched to a deactivated state when the internal access door 120 is in an open state. Similarly, the internal exit button 125 also maintains an activated state after tagging the internal 1 access terminal 121, and is preferably switched to a deactivated state when the external access door 110 is in an open state. do.

To elaborate, according to the double door interlocking system of the present invention, accurate personal information (for example, number of people) of the user (P) tagged in the external 1 access terminal 111 and the internal 1 access terminal 121 can be provided. In addition, by comparing the number of people (a) calculated by calculating the number of people entering the inner room through the access terminal and the exact number of people in the room (b) confirmed by the video intelligent SW using the inner room sensor 301, these ( By checking whether a and b) match, unauthorized entry into the room (restricted area) by unauthorized persons, such as tailgating, is blocked in advance. Moreover, the manager in the restricted area sets the minimum number of regular workers (min). If the number of people in the room is less than the set value, an alarm sounds after a certain period of time to enable door control, and/or if the administrator in the room sets the maximum number of users (Max) and the number of people in the room is the same as the set value, After a certain period of time, the door is controlled to ‘no entry allowed’.

Moreover, the device activation/deactivation time can be set, and the delay time when an abnormality occurs can also be set appropriately.

Now, referring to FIGS. 12A to 12D, when explaining the normal entry process of the registered user (P1), the number of internal people calculated to have entered through the external 1 access terminal 111 installed at the external access door 110 (a) = 1) and the number of people (b = 1) obtained by analyzing the video of the detection unit's occupancy sensor (301) (for example, CCTV), and if both are the same (a = b), the interior installed on the interior door (120) 1 You can enter the room through the entrance terminal (121). in other words,

① If the registered user (P1) succeeds in authentication after tagging the external 1 access terminal (IN) 111 from the outside, the access controller 101 controls the external door lock 113 to open the external door 110 for a certain period of time. It is opened and then closed, and at this time, the registered user (P1) enters the inner room. At this time, after tagging the external 1 access terminal 111, the external exit button 115 is activated to allow an outsider who entered the inner room through a simple illusion to voluntarily leave the room. Of course, when the external door 110 is open, the internal door must remain closed, so the internal 1 access terminal 121 is deactivated (see FIG. 12a).

② Afterwards, after the user enters by opening and closing the external door lock, the target number of people (a) is calculated considering the number of people who entered the inner room through the external 1 access terminal (111), and on the other hand, the number of people (a) is calculated by the internal room sensor (301). By comparing the number of people (b) identified by analyzing the video, if these values are the same (condition 1), on the other hand, when the external door 110 is closed through the external door sensor 114 (condition 2), Since there is no intruder inside and only registered people have entered the room, the interior 1 access terminal (IN) 121 is activated to allow the registered user (P1) who entered the temporary space in the interior room to enter the room (see Figure 12b). .

'Condition 1': Calculated number of people (a) = Number of people scanned by the detection unit (b)

‘Condition 2’: External door closed state

③ In other words, when both ‘Condition 1’ and ‘Condition 2’ above are met, the internally registered user (P1) is confirmed to be a registered user after tagging the internal 1 access terminal (IN) 121. The access controller 101 controls the internal door lock 123 to open and then close the internal door 120 for a certain period of time, and only then does the registered user (P1) enter the room (see Figure 12c).

④ Afterwards, user personal information and personnel information inside the room are stored in the database (not shown) of the integrated operation server 200, and additionally, it is checked whether the minimum number of people in the room (min2) and the maximum number of people in the room (MAX2) are within the range. By checking, it is determined whether it is suitable for the set number of residents and whether additional control such as alarms is necessary (see Figure 12d).

Continuing with reference to FIGS. 13A to 13D, when explaining the abnormal entry process in which not only the registered user (P1) but also the non-registered user (P2) entered, the external 1 access terminal 111 installed on the external door 110 ) Compare the number of people inside (a=1) calculated to have entered through and the number of people (b≥2) calculated by analyzing the video from the occupancy sensor 301 (e.g. CCTV) of the detection unit, and if the two are not the same (a If ≠b), the interior 1 access terminal 121 installed on the interior door 120 is not activated, and exit is guided through the exterior door 110. in other words,

① If the registered user (P1) succeeds in authentication after tagging the external 1 access terminal (IN) 111 from the outside, the access controller 101 controls the external door lock 113 to open the external door 110 for a certain period of time. It is opened and then closed, and at this time, the registered user (P1) enters the inner room, and a non-registered user (P2) may follow in accidentally or intentionally. Even at this time, after tagging the external 1 access terminal 111, the external exit button 115 is activated so that an outsider who entered the inner room through a simple illusion can voluntarily leave the room. Of course, when the external door 110 is open, the internal door must remain closed, so the internal 1 access terminal 121 is deactivated (see Figure 13a).

② Afterwards, after the user enters by opening and closing the external door lock, the target number of people (a = 1) is calculated considering the number of people who entered the inner room through the external 1 access terminal (111), and on the other hand, the internal room sensor (301) ) Compare the number of people (b≥2) identified by analyzing the video, and if these values are not the same, deactivate the internal 1 access terminal (IN) 121, and the user (P1) who entered the temporary space in the internal room , P2) is prevented from entering the room (see Figure 13b). On the other hand, even when the external door 110 is not closed through the external door sensor 114, the internal 1 access terminal (IN) 121 is similarly deactivated.

③ In other words, when any of the above ‘Condition 1’ and ‘Condition 2’ are not met, the Internal 1 access terminal (IN) 121 is deactivated, preventing even registered users from entering the room, and broadcasting or on the screen to encourage them to leave the room (see Figure 13c).

④ Of course, in this case, the external exit button 115 is activated, so non-registered people who mistakenly enter the inner room exit the room through the activated external exit button 115 (see Figure 13d).

(Embodiment of double door interlocking method)

Hereinafter, an embodiment of the double door interlocking method will be described in detail with reference to FIGS. 14 to 18.

FIG. 14 is a hardware configuration diagram for explaining the double door interlocking method upon entry among the double door interlocking methods according to another aspect of the present invention, and FIG. 15 is a diagram of the double door interlocking method according to another aspect of the present invention. It is a flowchart of a method of interlocking double doors during entry and exit, and FIG. 16 is a hardware configuration diagram for explaining the method of interlocking double doors when leaving among the double door interlocking methods related to another aspect of the present invention, and FIG. 17 is a flow chart for the double door interlocking method upon exit, among the double door interlocking methods according to another aspect of the present invention.

Figure 18 is a flowchart according to a modification of the double door interlocking method upon entry among the double door interlocking methods according to another aspect of the present invention.

First, with reference to Figures 14 and 15, among the double door interlocking methods of the present invention, the double door interlocking method upon entry will be described in detail.

When a user (P) trying to enter the inside room (IS) from the outside (OS) through the inside room (BS) first tags the outside 1 access terminal 111 (S11), the access terminal 101 and/or The control device consisting of the integrated operation server 200 determines whether the user is a registered user (S12), and if the user is not a registered user, the external door is closed and entry is not allowed (S13). On the other hand, if the user is a registered user, entry is denied (S13). The controller 101 controls the external door lock 113 to open the external door 110 for a certain period of time, allowing the registered user P1 to enter the inner room (S16).

Subsequently, the control device updates the calculated number of people inside the room (a) by adding the number of people currently allowed to enter the inside room through the external 1 access terminal 111 to the previous number of people inside the room (S17), and on the other hand, the sensor unit The interior room is photographed through the interior room sensor 301 of (300) (S21), and the interior room number measurement value (b) obtained by analyzing the image through the sensing signal analysis server 400 from the image signal obtained from the interior room sensor 301 ) is identified (S22).

Therefore, by comparing the calculated number of people inside (a) with the measured number of people inside (b) obtained through video analysis (S18), if these values are not the same (if a≠b), it is considered that a non-registered person has intruded. After determining, the internal 1 access terminal (IN) 121 is deactivated to prevent non-registered persons (P2) who entered the temporary space in the internal room from entering the room, and guide them through broadcasts or screens to encourage them to leave the room. (S23). Additionally, while encouraging people to leave the room through broadcasts or screens, it is determined whether an unexpected on-site abnormal situation (for example, an unexpected situation such as a fire or breakdown) has occurred (S24), and a normal situation where such a situation has not occurred is determined (S24). In this case, activate the external exit button (115) to enable exit to the outside by pressing the external exit button (115) (S25). If an unexpected on-site abnormality occurs, notify the manager of the emergency situation or send an SMS text message, etc. The administrator is called (S26).

On the other hand, when the external door 110 is opened by controlling the external door lock 113 in step S16, it must be automatically closed after a preset certain time. However, to make this more certain, the closed state of the external door is checked. (S27), if the external door is closed (condition 1) and the judgment in step S18 is that the calculated value of the number of people inside (a) and the measurement value of the number of people obtained through video analysis (b) are the same, (If a=b) (Condition 2), since there is no internal intruder and only registered persons have entered the room, the Internal 1 access terminal (IN) (121) is activated and tagging is waited (S29). Thus, the Internal 1 access terminal (IN) ) When tagging (121) is made, it is checked again whether the user is a registered user (S30), and if it is determined that the user is a registered user, the access controller (101) controls the internal door lock (123) to open the internal door (120). is opened for a certain period of time, and only then the registered user (P1) can enter the room (S33). At this time, when the interior door 120 is open, the exterior exit button 115 is deactivated, thereby In a situation of leaving the room, prevent non-registered persons from directly entering the room from the outside through the exterior door 110 and the interior door 120 as much as possible (S34).

In addition, as a result of the determination in step S27, if the external door 110 is not closed through the external door sensor 114, and as a result of determination in step S30, tagging of the internal 1 access terminal (IN) 121 If it is determined that the user is not a registered user, the internal door 120 is naturally closed to prevent unauthorized persons from entering the room as much as possible (S28).

Now, with reference to Figures 16 and 17, among the double door interlocking methods of the present invention, the double door interlocking method upon exit will be described in detail.

When a user (P) who is trying to leave the room (IS) to the outside (OS) through the inside room (BS) tags the inside 2 access terminal 122 (S51), the access terminal 101 and/or The control device consisting of the integrated operation server 200 determines whether the user is a registered user (S52), and if the user is not a registered user, the internal door is closed and the exit is not allowed (S53). On the other hand, if the user is a registered user, entry is allowed. The controller 101 controls the inner door lock 123 to open the inner door 120 for a certain period of time, allowing the registered user (P1) to leave the inner room (S56).

Subsequently, the control device updates the calculated number of people inside the room (a) by adding the number of people currently allowed to leave the inside room through the inside 2 access terminal 122 to the previous number of people inside the room (S57), and on the other hand, the sensor The interior room is photographed through the interior sensor 301 of (300) (S61), and the interior room number measurement value (b) obtained by analyzing the image through the sensing signal analysis server 400 from the image signal obtained from the interior sensor 301 ) is identified (S62).

Therefore, by comparing the calculated number of people inside the room (a) with the measured number of people inside the room (b) obtained through video analysis (S58), if these values are not the same (if a≠b), the external 2 access terminal (OUT) ) (112) is deactivated to prevent a non-registered person (P2) who has entered the temporary space in the inner room from leaving the room, and this is announced through broadcasting or on the screen (S63). Additionally, by notifying this through broadcast or screen, it is determined whether an unexpected on-site abnormality (for example, an unexpected situation such as a fire or breakdown) has occurred (S64), and in a normal case where such a situation does not occur, If so, the external exit button (115) is activated to allow the guest to leave the room (S65). If an unexpected abnormal situation occurs on site, the manager is notified of the emergency situation or the manager is called via SMS text, etc. (S66).

On the other hand, when the internal door 120 is opened by controlling the internal door lock 123 in step S56, it must be automatically closed after a preset certain time. However, to ensure this, the closed state of the internal door is checked. (S67), if the "internal door is closed (condition 1)" and as a result of the judgment in step S58, the calculated value of the number of people inside (a) and the measured value of the number of people obtained through video analysis (b) are determined to be the same. (If a=b) (Condition 2), the external 2 access terminal (OUT) 112 is activated and tagging is waited (S69). Thus, when tagging is performed on the external 2 access terminal (OUT) 112, , it is checked again whether the user is a registered user (S70), and if it is determined that the user is a registered user, the access controller 101 controls the external door lock 113 to open the external door 110 for a certain period of time, and then the registered user is finally registered. The user (P1) is allowed to exit the room from the inner room to the outside (S73). At this time, when the exterior door 110 is open, the inner exit button 125 is deactivated, so that a non-registered person can exit the room from the inner room. Try as much as possible to prevent direct entry into the room from the outside through the exterior door 110 and the interior door 120 (S74).

In addition, as a result of the determination in step S67, if the internal door 120 is not closed through the internal door sensor 124, and as a result of determination in step S70, tagging of the external 2 access terminal (OUT) 112 If it is determined that the user is not a registered user, the exterior door 110 is naturally closed to prevent the situation where an unauthorized person immediately leaves the room to the outside (S68).

Finally, with reference to FIGS. 14 and 18, a variation of the double door interlocking method upon entry among the double door interlocking methods according to the present invention will be described in detail. In this modification, on the one hand, the maximum number of people in the inner room (MAX1) is set to avoid congestion in the inner room, and on the other hand, the minimum number of people in the inner room (min1) is set for efficient buffering in the inner room when commuting to work, and also sets the minimum number of people in the inner room (min1). For additional confirmation in rooms where security must be high, set the minimum number of people in the room (min2) and the maximum number of people in the room (MAX2), and check whether the number of people in the room and in the room is within the above range, appropriate for the set number of residents. This is to determine whether additional control such as control, alarm, etc. is necessary.

First, when a user (P) trying to enter the inside room (IS) from the outside (OS) through the inside room (BS) tags the outside 1 access terminal 111 (S11), the access terminal 101 and/or The control device consisting of the integrated operation server 200 determines whether the user is a registered user (S12), and if the user is not a registered user, the external door is closed and entry is not allowed (S13). On the other hand, if the user is a registered user, the control device is controlled. The device checks whether the current calculated number of people in the room (a) is the maximum number of people in the room (MAX1) (S14). As a result, when the current calculated number of people in the room (a) reaches the maximum number of people in the room (MAX1) (if a = MAX1), it is judged that the room can no longer accommodate people, so enter the room from the inside room or enter the inside room. Leave the room outside and wait for a while until the number of people inside the room decreases, then return to the beginning and start again (S15).

On the other hand, as a result of the judgment in step S15, if the current calculated number of people inside the room (a) is smaller than the maximum number of people inside the room (MAX1) (if a < MAX1), the access controller 101 finally opens the external door lock 113. The external door 110 is controlled to be opened for a certain period of time, allowing the registered user (P1) to enter the inner room (S16).

Subsequently, the control device updates the calculated number of people inside the room (a) by adding the number of people currently allowed to enter the inside room through the external 1 access terminal 111 to the previous number of people inside the room (S17), and on the other hand, the sensor unit The interior room is photographed through the interior room sensor 301 of (300) (S21), and the interior room number measurement value (b) obtained by analyzing the image through the sensing signal analysis server 400 from the image signal obtained from the interior room sensor 301 ) is identified (S22).

Therefore, by comparing the calculated number of people inside (a) with the measured number of people inside (b) obtained through video analysis (S18), if these values are not the same (if a≠b), it is considered that a non-registered person has intruded. After determining, the internal 1 access terminal (IN) 121 is deactivated to prevent non-registered persons (P2) who entered the temporary space in the internal room from entering the room, and guide them through broadcasts or screens to encourage them to leave the room. (S23). Additionally, while encouraging people to leave the room through broadcasts or screens, it is determined whether an unexpected on-site abnormal situation (for example, an unexpected situation such as a fire or breakdown) has occurred (S24), and a normal situation where such a situation has not occurred is determined (S24). In this case, activate the external exit button (115) to enable exit to the outside by pressing the external exit button (115) (S25). If an unexpected on-site abnormality occurs, notify the manager of the emergency situation or send an SMS text message, etc. The administrator is called (S26).

On the other hand, when the external door 110 is opened by controlling the external door lock 113 in step S16, it must be automatically closed after a preset certain time. However, to make this more certain, the closed state of the external door is checked. (S27), if the external door is closed (condition 1) and the judgment in step S18 is that the calculated value of the number of people inside (a) and the measurement value of the number of people obtained through video analysis (b) are the same, (If a=b) (Condition 2), since there is no internal intruder and only registered persons have entered the room, entry into the room can be permitted by activating the internal 1 access terminal (IN) (121) (S20). However, before that, Compare the calculated number of people in the room (a) with the minimum number of people in the room (min1) (S19). If the calculated value of the number of people in the room (a) is less than the minimum number of people in the room (min1), it is determined that there is a problem, and the manager determines that there is a problem. The emergency situation is notified to the administrator or the administrator is called via SMS text, etc. (S26).

On the other hand, only if the calculated number of people inside the room (a) is greater than the minimum number of people inside the room (min1) (if a ≥ min1), proceed to step S20, activate the inside 1 access terminal (IN) 121, and (S20), tagging of the internal 1 access terminal (IN) 121 is waited (S29). Thus, when the tagging of the internal 1 access terminal (IN) 121 is made, it is checked again whether the user is a registered user (S30), and if it is determined that the user is a registered user, the access controller 101 activates the internal door lock 123. is controlled to open the internal door 120 for a certain period of time, allowing the registered user (P1) to enter the room (S33). At this time, when the internal door 120 is open, the external exit button 115 is deactivated, so that in a situation where a non-registered person leaves the internal room, he or she can enter the room directly from the outside through the external door 110 and the internal door 120. Try to prevent entry as much as possible (S34).

However, even if it is determined that the user is registered in step S30, the inner door lock 123 is not opened or closed immediately, but the number of people currently occupied (n) and the number of people inside the room expected to be newly infiltrated (a) are added to the occupied room. Compare the expected number of people (a+n) with the preset maximum number of people (MAX2) (S31), and only if the expected number of people (a+n) is not greater than the maximum number of people (MAX2) (a+n ≤ MAX2), the access controller 101 controls the inner door lock 123 to open the inner door 120 for a certain period of time, allowing the registered user (P1) to enter the room (S33).

On the other hand, as a result of the judgment in step S31, if the expected number of people occupancy (a+n) is greater than the maximum number of people occupancy (MAX2) (if a+n > MAX2), when a person moves from the occupancy room to the inner room, After waiting for a while (S32), the process starts again from step S30.

Optionally, after step S33, the current number of occupants (n) is updated (S35), and whether the updated number of occupants (n) is greater than or equal to the minimum number of occupants (min2) is determined (S36), and the number of occupants (n) is updated (S35). ) is more than the minimum number of occupants (min2) (if n ≥ min2), the process is terminated. Otherwise (if n < min2), as this is an abnormal case, the manager must be notified of the emergency situation or contacted by SMS text, etc. It is called (S37).

In other words, although the present invention has been described above according to an embodiment of the present invention, changes and modifications made by those skilled in the art in the technical field to which the present invention pertains without departing from the technical spirit of the present invention are also included in the present invention. Belonging is natural.

100: Door control unit
101: Access controller
110: External entrance door
111: External 1 access terminal (IN)
112: External 2 access terminal (OUT)
113: External door lock
114: External door sensor
115: external exit button
120: Internal entrance door
121: Internal 1 access terminal (IN)
122: Internal 2 access terminal (OUT)
123: Internal door lock
124: Internal door sensor
125: Internal exit button
200: Integrated operation server
300: detection unit
301: Internal sensor
400: Sensing signal analysis server
500: Network
600: ID device
P: user
P1: Registered user (registrant)
P2: Non-registered user (non-registered)
OS: external
BS: Boudoir
IS: present

Claims (8)

As a double door interlocking system,
A door control unit 100 installed on the internal and external doors while controlling the internal and external entrance of the user (P) by the access controller 101;
An integrated operation server 200 that controls the entire double door interlocking system;
A detection unit 300 that detects the movement of the user (P) and the number of people in the inner space by the inner room sensor 301 installed in the inner room;
A sensing signal analysis server 400 that analyzes the sensing signal detected by the sensing unit 300 and counts the number of people inside the room; and
a network connecting them (500); It includes,
The door control unit 100 is installed on the outside of the exterior door 110 and directly recognizes the biometric information of the user (P) or detects the user's ID device 600 such as a mobile phone to authenticate the user's entry upon entering the room. an external 1 access terminal (IN) 111, an external 2 access terminal (OUT) 112 installed on the inside of the external door 110 and authenticating the user's access when leaving the room, and the external 1 access terminal or external 2 When access is authenticated by the access terminal, an external door lock (113) that opens and closes the external door, an external door sensor (114) that senses the closed/open status of the external door, and a device installed on the inside of the external door to manually open the external door. An external exit button 115 that opens with an external exit button 115, an internal 1 access terminal (IN) 121 installed on the outside of the internal door 120 to authenticate the user's entry upon entering the room, and an internal 1 access terminal (IN) 121 installed on the inside of the internal door 120. an internal 2 access terminal (OUT) 122 that authenticates the user's access when leaving the room, an internal door lock 123 that opens and closes the internal door when access is authenticated by the internal 1 access terminal or the internal 2 access terminal, and an internal door lock 123 that opens and closes the internal door. It includes an internal door sensor 124 that senses the closed/open status of the door, and an internal exit button 125 that is installed on the inside of the internal door and manually opens the internal door.
The external exit button 115 remains activated after tagging the external 1 access terminal 111, and is switched to a deactivated state when the internal door 120 is opened,
The internal exit button 125 is maintained in an activated state after tagging the internal 1 access terminal 121, and is switched to a deactivated state when the external door 110 is in an open state. Interlocking system. According to claim 1,
The integrated operation server 200 adds the number of people entering through video analysis of the access terminals (111, 112; 121, 122) and the detection unit 300 when the administrator in the area sets the maximum/minimum allowable number of people. , A double door interlocking system that further enhances security by controlling access when the value is outside the allowable range in addition to the maximum/minimum allowable number of people set above. According to claim 1,
The integrated operation server 200,
The number of people inside (a = 1) calculated to have entered through the external access terminal 111 installed on the external door 110 and the number of people calculated by analyzing the video of the occupancy sensor 301 (for example, CCTV) of the detection unit ( b = 1) is compared, and if both are the same (if a = b), control is performed to allow entry into the room through the internal 1 access terminal 121 installed on the internal entrance door 120,
The number of people inside (a = 1) calculated to have entered through the external access terminal 111 installed on the external door 110 and the number of people calculated by analyzing the video of the occupancy sensor 301 (for example, CCTV) of the detection unit ( b ≥ 2) is compared, and if the two are not the same (if a ≠ b), the internal 1 access terminal 121 installed on the internal door 120 is not activated, and a broadcast is made to guide the exit through the external door 110. A double door interlocking system characterized by displaying it through or through video. A double door interlocking method using the double door interlocking system according to any one of claims 1 to 3, wherein the access controller (101), the integrated operation server (200), or the access controller (101) and the access controller (101) It is performed by a control device consisting of both an integrated operation server (200),
(a) When a user (P) trying to enter the inside room (IS) from the outside (OS) through the inside room (BS) tags the outside 1 access terminal 111 (S11), it is determined whether the user is a registered user. Step (S12);
(b) a step (S13) in which, as a result of the determination in step (a), non-registered users are not allowed to enter with the external door closed;
(e) As a result of the determination in step (a), if the user is a registered user, the external door lock 113 is controlled to open the external door 110 for a certain period of time, allowing the registered user (P1) to enter the inner room. Step (S16);
(f) after step (e), updating the calculated number of people in the inner room (a) by adding the number of people currently allowed to enter the inner room through the external 1 access terminal 111 to the previous number of people in the inner room (S17);
(g) After step (e), the inner room is photographed through the inner room sensor 301 of the detection unit 300 (S21), and the sensing signal analysis server 400 analyzes the image signal obtained from the inner room sensor 301. A step (S22) of determining the measurement value (b) of the number of people in the room obtained by analyzing the video through;
(h) comparing the calculated number of people in the room (a) in step (a) with the measured number of people in the room (b) obtained through image analysis in step (g) (S18);
(j) If the calculated number of people inside (a) and the measured value of the number of people inside (b) are not the same (if a≠b), it is determined that a non-registered person has intruded, and the internal 1 access terminal (IN) 121 A step (S23) of deactivating to prevent a non-registered person (P2) who has entered the temporary space of the inner room from entering the room, and encouraging them to leave by informing them through a broadcast or screen;
(r) after step (e), checking the closed state of the external door (S27);
(s) As a result of the judgment in step (r), "the external door is closed, and as a result of the judgment in step (h), the calculated value of the number of people inside (a) and the measurement value of the number of people inside obtained through video analysis (b) If it is determined that they are the same (if a = b), the internal 1 access terminal (IN) 121 is activated and tagging is waited (S29);
(t) After step (s), if tagging of the internal 1 access terminal (IN) 121 is performed, re-checking whether the user is a registered user (S30);
(w) As a result of the determination in step (t), if it is determined that the user is a registered user, the internal door lock 123 is controlled to open the internal door 120 for a certain period of time, allowing the registered user (P1) to enter the room. Step to enable entry (S33); and
(x) In step (w), when the internal door 120 is open, the external exit button 115 is deactivated (S34);
A double door interlocking method comprising: According to claim 4,
(k) after step (j), determining whether an unexpected field abnormality has occurred (S24);
(m) As a result of the determination in step (k) above, if it is a normal case in which an unexpected on-site abnormal situation does not occur, the step of activating the external exit button 115 to enable exit to the outside by pressing the external exit button 115 (S25); and
(n) As a result of the determination in step (k), if an unexpected on-site abnormality occurs, a step (S26) of notifying the manager of the emergency situation or calling the manager through SMS text, etc.;
A double door interlocking method further comprising: According to claim 4,
Before step (e), (c) if the user is a registered user as a result of the determination in step (a), it is checked whether the current calculated number of people (a) is the maximum number of people (MAX1) (S14) ); and (d) as a result of the judgment in step (a) above, if the current calculated number of people in the room (a) reaches the maximum number of people in the room (MAX1) (if a = MAX1), after waiting for a while, it returns to the beginning and starts again. Step to start (S15); It further includes, and as a result of the determination in step (c), if the current calculated number of people (a) is less than the maximum number of people (MAX1) (if a < MAX1), proceed to step (e),
Before step (s), if (p) as a result of the judgment in step (h), it is determined that the calculated number of people inside (a) and the measured number of people inside (b) obtained through video analysis are the same (a) =b), comparing the calculated number of people in the room (a) with the minimum number of people in the room (min1) (S19); and (q) as a result of the judgment in step (p), only if the calculated number of people in the room (a) is more than the minimum number of people in the room (min1) (if a ≥ min1), the internal 1 access terminal (IN) ( 121) activating step (S20); A double door interlocking method comprising: proceeding to step (s) after step (q). According to claim 4,
Before step (w), (u) if it is determined that the user is a registered user as a result of the determination in step (t), the number of people currently occupancy (n) and the number of new people expected to enter the room (a) are added. Comparing the expected number of people present (a+n) with the preset maximum number of people present (MAX2) (S31); and (v) as a result of the determination in step (u), if the expected number of occupants (a+n) is greater than the maximum number of occupants (MAX2) (if a+n > MAX2), wait for a while (S32) , returning to step (t); It further includes, as a result of the determination in step (u), only if the expected number of occupants (a+n) is not greater than the maximum number of occupants (MAX2) (if a+n ≤ MAX2), (w) Proceeding step by step,
After step (w), (y) updating the current number of occupants (n) (S35); and (z) after step (y), determine whether the updated number of occupants (n) is greater than or equal to the minimum number of occupants (min2) (S36), and if the number of occupants (n) is greater than or equal to the minimum number of occupants (min2) (if n ≥ min2) the process is terminated, otherwise (if n < min2) the manager is notified of an emergency situation or the manager is called via SMS text, etc. (S37); A double door interlocking method further comprising: A double door interlocking method using the double door interlocking system according to any one of claims 1 to 3, wherein the access controller (101), the integrated operation server (200), or the access controller (101) and the access controller (101) It is performed by a control device consisting of both an integrated operation server (200),
(A) When a user (P) who is trying to leave the room (IS) to the outside (OS) through the inside room (BS) tags the inside 2 access terminal 122 (S51), a function is used to determine whether the user is a registered user. Step (S52);
(B) As a result of the determination in step (A), non-registered users are not allowed to leave the room with the internal door closed (S53);
(E) As a result of the determination in step (A), if the user is a registered user, the internal door lock 123 is controlled to open the internal door 120 for a certain period of time to allow the registered user (P1) to leave the inner room. becoming step (S56);
(F) After step (E), updating the calculated number of people inside the room (a) by adding the number of people currently allowed to leave the inside room through the inside 2 access terminal 122 to the previous number of people inside the inside room (S57);
(G) After step (E), the inner room is photographed through the inner room sensor 301 of the detection unit 300 (S61), and the sensing signal analysis server 400 uses the image signal obtained from the inner room sensor 301. A step (S62) of determining the measurement value (b) of the number of people in the room obtained by analyzing the video through;
(H) Comparing the calculated number of people in the room (a) in step (A) with the measured number of people in the room (b) obtained through image analysis in step (G) (S58);
(J) If the calculated number of people in the room (a) and the measurement value of the number of people in the room (b) are not the same (if a≠b), it is determined that an unregistered person (P2) who entered the temporary space in the room has intruded. , deactivating the external 2 access terminal (OUT) 112 so that a non-registered person (P2) who has entered the temporary space in the inner room cannot leave the room to the outside, and informing this through broadcasting or a screen (S63);
(R) After step (E), checking the closed state of the internal access door (S67);
(S) As a result of the judgment in the step (R), "the internal door is closed, and as a result of the judgment in the step (H), the calculated value of the number of people inside (a) and the measurement value of the number of people inside the room obtained through video analysis (b) If it is determined that they are the same (if a=b), activating the external 2 access terminal (OUT) 112 and waiting for tagging (S69);
(T) After step (S), when tagging of external access terminal (OUT) 112 is performed, re-checking whether the user is a registered user (S70);
(W) As a result of the determination in step (T), if it is determined that the user is a registered user, the external door lock 113 is controlled to open the external door 110 for a certain period of time, allowing the registered user (P1) to enter the inner room. Step of allowing exit to the outside (S73); and
(X) In step (W), the internal exit button 125 is deactivated when the external door 110 is open (S74);
A double door interlocking method comprising: