JP2011149204A - Door security system and control device for the same - Google Patents

Abstract

A door security system using two-dimensional information that can be authenticated while a user moves and a control device therefor are provided.
A door security system 1A includes an imaging device 13 and an authentication control device 400. The authentication control device 400 controls the door 11 via the control device 100 and can communicate with the imaging device 13. Connected and configured. The imaging device 13 captures the two-dimensional information printed on the authentication card C1 carried by the user H1 using the automatic tracking and autofocus function while the user H1 is moving. The authentication control device 400 acquires captured image information, performs image analysis on the image information, extracts identification information from the two-dimensional information, and releases door security of the door based on the extracted identification information. It is determined whether or not to perform.
[Selection] Figure 1

Description

  The present invention relates to a door security system using two-dimensional information and a control device thereof.

  In general, a door security system presents information indicating that a passer is a correct passer at an entrance and exit of a detached house, an apartment house, an office building, etc. Is compared with registered information registered in advance, and the door is unlocked when the presentation information matches the registered information.

  Patent Document 1 and Patent Document 2 disclose an electric lock control system using a two-dimensional code as presentation information. In this system, an authentication terminal equipped with a visitor recognition camera installed at the entrance / exit has a normal mode with optical characteristics of a long-distance focusing range and a close-up mode that allows close-up shooting. Is configured to be switched by a switch. Therefore, the visitor operates the switch of the terminal at the entrance, selects the close-up mode, and presents a pre-assigned two-dimensional code to the visitor recognition camera. Then, the two-dimensional code read by the terminal is collated with registered information registered in advance, and the door is unlocked when the collated two-dimensional code matches the registered information.

JP 2004-238965 A Japanese Patent Laid-Open No. 2006-090006

  However, in the inventions disclosed in Patent Document 1 and Patent Document 2, in order to present the two-dimensional code to the authentication terminal, the visitor must stop in front of the authentication terminal at the entrance / exit. Therefore, as the number of doors with security increases, there is a problem that the number of stops increases and the time required for passage increases. Then, this invention makes it a subject to provide the door security system using the two-dimensional information which can authenticate while a user moves, and its control apparatus.

  In order to solve the above problems, the present invention is configured such that a door security system includes an imaging device and a control device, and the control device controls the door and is connected to the imaging device so as to be communicable. The imaging apparatus captures two-dimensional information (for example, a two-dimensional code) printed on an authentication medium such as an authentication card carried by the user by using an automatic tracking and autofocus function while the user is moving. The control device acquires captured image information, performs image analysis on the image information, extracts identification information from the two-dimensional information, and releases door security of the door based on the extracted identification information. It is determined whether or not.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the door security system using the two-dimensional information which can authenticate while a user moves, and its control apparatus.

It is a figure which shows an example of a structure of the door security system in 1st Embodiment. It is a figure which shows the function example of the control apparatus in 1st Embodiment. It is a figure which shows an example of the authentication table which the control apparatus of 1st Embodiment memorize | stores. It is a figure which shows the function example of the control apparatus for authentication in 1st Embodiment. It is a figure which shows (a) an example of an authentication table, (b) an example of an imaging device network address table, (c) an example of a control device network address table which the authentication control apparatus of 1st Embodiment memorize | stores. It is a figure which shows the flow of the process from acquisition of the image information using an imaging device to door unlocking in 1st Embodiment. It is a figure which shows an example of door security cancellation | release instruction information. It is a figure which shows the flow of the process from authentication of the 2nd identification information using the 2nd identification information reader in 1st Embodiment to door unlocking. It is a figure which shows an example of a structure of the door security system in 2nd Embodiment. It is a figure which shows the function example of the control apparatus in 2nd Embodiment. It is a figure which shows the flow of a process from acquisition of the image information using an imaging device to door unlocking in 2nd Embodiment.

  Next, a mode for carrying out the present invention (hereinafter referred to as “the present embodiment”) will be described in detail with reference to the drawings as appropriate.

(First embodiment)
The configuration of the door security system 1A in the first embodiment will be described with reference to FIG. As shown in FIG. 1, a door security system 1A includes automatic doors (doors) 11, 21, 31, 41 installed in passages, and card readers installed in the vicinity of the automatic doors 11, 21, 31, 41. (Reading device) 12, 22, 32, 42, control devices 100, 200, 300 for controlling automatic doors 11, 21, 31, 41 and card readers 12, 22, 32, 42, and automatic for crime prevention An imaging control device 13, 23, 33, 43 installed in the vicinity of the door, and an authentication control device connected to the control devices 100, 200, 300 and the imaging devices 13, 23, 33, 43 via the network 500. (Control device) 400 and an authentication card (authentication medium) C1 printed with two-dimensional information for authentication carried by the user H1 (hereinafter referred to as a two-dimensional code). The number of automatic doors, the number of control devices, the number of imaging devices, the number of authentication control devices, and the number of authentication cards are not limited to the numbers shown in FIG. The authentication control device 400 is also a kind of control device, and the control devices 100, 200, 300 and the authentication control device 400 may be collectively referred to as a control device of the door security system 1A.

  The minimum unit configuration of the door security system 1A shown in FIG. 1 is (1) a set of an automatic door 11, a card reader 12, a control device 100, an imaging device 13, a network 500, an authentication control device 400, and an authentication card C1. (2) Set of automatic door 21, card reader 22, control device 200, imaging device 23, network 500, authentication control device 400 and authentication card C1, (3) automatic door 31, card reader 32, control device 300, (4) Automatic door 41, card reader 42, control device 300, image pickup device 43, network 500, authentication control device 400, and authentication set of imaging device 33, network 500, authentication control device 400, and authentication card C1 One of the sets of cards C1. Since the flow of processing is the same for each set, in the following description, the set of the automatic door 11, the card reader 12, the control device 100, the imaging device 13, the network 500, the authentication control device 400, and the authentication card C1. Is described.

(Outline of door security system operation)
The imaging device 13 is a security camera that captures a landscape of the area A10 near the automatic door 11, and uses the captured image information to the authentication control device 400, the communication line L13, the network 500, and the communication line. Transmitting via L400. When the user H1 carries the authentication card C1 and enters the area A10, the image information is transmitted to the authentication control device 400. The authentication control device 400 activates a known application for crime prevention, and detects, for example, a change in image information when a person or an object enters the area A10. For example, a technique disclosed in Japanese Patent Application Laid-Open No. 61-119580 can be used for detecting a change in image information.

  For example, the authentication control device 400 activates a known image analysis application (see, for example, Japanese Patent Application Laid-Open No. 7-288732), and transmits from the imaging device 13 when a change in image information is detected. The received image information is analyzed to detect the authentication card C1. Then, the authentication control device 400 controls the imaging device 13 to automatically track the authentication card C1 in order to read the two-dimensional code for authentication printed on the detected authentication card C1. adjust. Japanese Patent Laid-Open No. 7-288732 discloses a technique that can automatically track a moving subject and keep the focus on the subject, and can make the subject tracking range as wide as possible.

  Now, as shown in FIG. 1, the user H1 carries the authentication card C1 (thing) on which the two-dimensional code for authentication was printed. Then, the user H1 presents the authentication card C1 to the imaging device 13 while moving (walking) in the area A10. The imaging device 13 transmits a landscape including the user H1 and the authentication card C1 to the authentication control device 400 as image information. The authentication control device 400 performs image analysis on the received image information to detect the authentication card C1. Then, the authentication control device 400 controls the imaging device 13 to automatically focus on the authentication card C1 and acquire the image information of the authentication two-dimensional code printed on the authentication card C1. Next, the authentication control device 400 extracts a card ID (identification information, code ID) from the acquired image information of the two-dimensional code for authentication (here, the code ID (identification information) of the two-dimensional code is It is called a card ID because it is printed on the card).

  Then, the authentication control device 400 determines whether or not the card ID has been registered. If registered, the authentication control device 400 identifies the automatic door 11 to be controlled, which is associated with the installation position of the imaging device 13 that has transmitted the image information, and the identified automatic door 11 is identified. It is determined whether door security release is permitted for the card ID. When it is determined that the door security release is permitted, the authentication control device 400 sends the control device 100 that controls the corresponding automatic door 11 to the control device 100 via the communication line L400, the network 500, and the communication line L100. Send door security release instruction information. Upon receiving the door security release instruction information, the control device 100 transmits the door security release instruction to the automatic door 11 via the communication line L11, and executes the door security release (door unlocking) of the automatic door 11. .

  Further, the authentication control device 400 also extracts the face of the user H1 photographed together with the authentication card C1 from the received image information, and determines whether or not the face is hidden. That is, in the determination of whether or not to permit the door security release in the authentication control device 400, not only the determination based on the card ID but also that the face is not hidden may be added as a permission condition. In this case, when it is determined that the security of the automatic door 11 may be released based on the card ID extracted from the two-dimensional code, and the user's face is extracted (the face is not hidden), Remove door security. If the user's face cannot be extracted (the user's face is hidden), the security is not released even if the card ID extracted from the two-dimensional code can be released. Thereby, security can be improved. Here, since it is sufficient to determine only whether or not a face has been extracted, the process of specifying an individual from the face is not performed. It should be noted that in the face extraction and the determination that the face is not hidden, for example, in the photographed face image of the user disclosed in Japanese Patent Laid-Open No. 2000-251077, the image of the eyes and mouth is accurate. A technique for determining whether or not it has been detected can be used.

  Further, when the two-dimensional code information cannot be read correctly by the imaging device 13, the user H1 is authenticated using the card reader 12. In that case, the user H1 holds the authentication card C1 over the card reader 12. An authentication card C1, which is an authentication medium on which a two-dimensional code is printed, has a card ID (second identification information) recorded by means other than the two-dimensional code, such as an IC chip. The second identification information is preferably the same information as the identification information based on the two-dimensional code. However, an authentication table corresponding to the second identification information is separately provided, or a two-dimensional code is separately provided. Different information may be used as long as the identification information and the second identification information are associated with each other. Here, description will be made assuming that the second identification information is the same information as the identification information based on the two-dimensional code. The card reader 12 acquires information (second identification information) related to the card ID from an IC chip or the like provided in the authentication card C1, and transmits the information related to the card ID to the control device 100 via the communication line L12. To do. The control device 100 determines whether or not the card ID included in the received information related to the card ID has been registered. If registered, the control device 100 determines whether the door is permitted to be unlocked. When the control device 100 determines that the door is permitted to be unlocked, the control device 100 executes the unlocking of the corresponding automatic door 11.

≪Function of control device≫
Next, functions of the control device 100 will be described with reference to FIG. The control device 100 includes a storage unit 110, a communication unit 120, a control unit 130, and an authentication unit 140, and transmits / receives information to / from each unit via the bus SB1.

  The storage unit 110 stores an authentication table 111 that stores the entire authentication information. As shown in FIG. 3, the authentication table 111 stores a card ID (identification information) and a door that can be unlocked when the card ID is acquired in association with each other. In FIG. 3, door 1, door 2, door 3, and door 4 (corresponding to automatic doors 11, 21, 31, and 41, respectively) are registered as an example of door identification information that can be released from security, and door security is released. “1” is attached as a flag to a place where the permission is granted.

  Returning to FIG. 2, the communication unit 120 includes a card reader communication unit 121 that communicates with the card reader 12, a door communication unit 122 that communicates with the automatic door 11, and a network communication unit 123 that performs communication via the network 500. With.

  The control unit 130 controls the entire processing of the control device 100. The control unit 130 also registers, updates, deletes, etc., a card reader control unit 131 that controls the card reader 12, a door control unit 132 that controls the automatic door 11, and a table stored in the storage unit 110. A table control unit 133.

  The authentication unit 140 refers to the authentication table 111 of the storage unit 110 using the authentication card ID acquired via the card reader 12, and determines whether or not the card ID is registered in the authentication table 111; If registered, it is determined whether or not the door permits door security release based on the flag.

≪Function of authentication control device≫
Next, functions of the authentication control device 400 will be described with reference to FIG. The authentication control device 400 includes a storage unit 410, a communication unit 420, a control unit 430, an image analysis unit 440, a card ID extraction unit 450, and an authentication unit 460, and transmits and receives information to and from each unit via the bus SB2. To do.

  The storage unit 410 includes an authentication table 411 that stores the entire authentication information, an imaging device network address table 412 that stores network addresses of the imaging devices 13, 23, 33, and 43, and network addresses of the control devices 100, 200, and 300. Is stored in the control device network address table 413. FIG. 5A shows an example of the authentication table 411. Similar to the authentication table 111 shown in FIG. 3, the authentication table 411 associates a card ID (identification information extracted from the two-dimensional code) with a door whose security can be released when the card ID is acquired. I remembered it. In this example, door 1, door 2, door 3, door 4 (corresponding to automatic doors 11, 21, 31, 41, respectively) are registered as an example of door identification information that can be unlocked. “1” is attached as a flag to the permitted portion. FIG. 5B shows an example of the imaging device network address table 412. The imaging device network address table 412 stores the imaging device network address, the imaging devices 13, 23, 33, and 43, and door identification information of the control target door information in association with each other. FIG. 5C shows an example of the control device network address table 413. The control device network address table 413 stores the control device network address, the control devices 100, 200, and 300, and door identification information of the control target door information in association with each other.

  Returning to FIG. 4, the communication unit 420 includes a network communication unit 421 that performs communication via the network 500.

  The control unit 430 controls the entire processing of the control device 400. In addition, the control unit 430 includes a table control unit 431 that performs registration, update, and deletion of a table stored in the storage unit 410, and an imaging device that controls zooming and panning of the imaging devices 13, 23, 33, and 43. And a control unit 432.

  The image analysis unit 440 performs image analysis of the image information received from each of the imaging devices 13, 23, 33, and 43. The card ID extraction unit 450 extracts a card ID from the two-dimensional code based on the image analysis result. The authentication unit 460 uses the extracted card ID to refer to the authentication table 411 of the storage unit 410 to determine whether or not the card ID is registered in the authentication table 411 and to flag the card ID if registered. Based on this, it is determined whether or not the door is permitted to be unlocked.

≪Authentication card≫
A two-dimensional code (two-dimensional information) is printed on the authentication card C1 (object, authentication medium) shown in FIG. This two-dimensional code encodes information such as numbers and characters, and is represented by a predetermined pattern arranged two-dimensionally. For example, a matrix type two-dimensional code representing information in a white and black lattice pattern, such as a QR code, can be used. Alternatively, as an example of the two-dimensional code, numbers and characters arranged in the vertical and horizontal directions of the authentication card, and patterns arranged may be used. Note that the two-dimensional code may be printed using ink that is not visible to the human eye under visible light but visible only under infrared light. When the two-dimensional code is printed using ink that can be seen only under infrared light, the authentication card C1 is photographed using the imaging devices 13, 23, 33, and 43 that have a function of photographing infrared light. The The two-dimensional code may be printed using ink that cannot be copied by a copying machine. Further, the two-dimensional code may be printed with check characters composed of dots smaller than the resolution of the copying machine so that the copying cannot be performed by the copying machine.
Further, as already described, the card ID (second identification information) is recorded on the authentication card C1, which is the authentication medium on which the two-dimensional code is printed, by means other than the two-dimensional code, such as an IC chip. . The second identification information is preferably the same information as the identification information based on the two-dimensional code. In that case, the authentication table 111 and the authentication table 411 can be made the same. An authentication table corresponding to second identification information (not shown) is provided as the authentication table 111, or the identification information based on the two-dimensional code and the second identification information are associated with each other by a table (not shown) provided separately. Thus, the second identification information may be information different from the identification information based on the two-dimensional code.

<< Flow of door security release in the first embodiment >>
Next, the flow of door security release in the first embodiment will be described with reference to FIG. 6 (see FIGS. 4 and 5 as appropriate).

  First, in step S <b> 601, the image analysis unit 440 of the authentication control device 400 acquires image information transmitted from the imaging device 13. The image information is transmitted together with the image capturing device network address of the image capturing device 13 that is the transmission source. In step S602, the image analysis unit 440 analyzes the received image information and extracts a two-dimensional code (two-dimensional information). If a two-dimensional code is extracted (YES in step S602), in step S603, the card ID extraction unit 450 extracts a card ID (identification information) from the extracted two-dimensional code. Next, when the card ID is extracted (YES in step S603), in step S604, the authentication unit 460 refers to the authentication table 411 using the extracted card ID and extracts the card ID extracted in the authentication table 411. It is determined whether or not there is.

  If the card ID is present in the authentication table 411 (YES in step S604), in step S605, the authentication unit 460 determines whether or not release permission (permits door security release) corresponding to the card ID. To do. Specifically, the authentication unit 460 refers to the authentication table 411 and extracts the door identification information with the flag “1” from the door identification information associated with the card ID. Further, the authentication unit 460 uses the imaging device network address received in step S601 to refer to the imaging device network address table 412, and identifies the door identification information of the control target door information associated with the received imaging device network address. Is obtained, door identification information corresponding to the imaging device 13 that has transmitted the image information is specified. Next, the authentication unit 460 determines whether the specified door identification information exists in the door identification information with the flag “1”. And when it determines with existing, the authentication part 460 determines with cancellation | release permission.

  If it is determined in step S605 that release is permitted (YES in step S605), in step S606, the authentication unit 460 transmits door security release instruction information that instructs the control device 100 to release door security. Specifically, the authentication unit 460 refers to the control device network address table 413 using the door identification information specified in step S605, and determines the control device network address associated with the door identification information of the control target door information. Extract. Then, the authentication unit 460 transmits the door security release instruction information via the network communication unit 421 with the control device network address as the destination. An example of door security release instruction information is shown in FIG. As illustrated in FIG. 7, the door security release instruction information 701 stores door identification information and a door security release instruction of the door to be controlled.

  In the case of NO in steps S602 to S605 and after the end of step S606, the process returns to step S601. In addition, when including the face extraction and the determination that the face is not hidden, the process may be executed at any position, for example, after YES in step S604.

  Next, processing of the control device 100 will be described (see FIGS. 2 and 7 as appropriate). In step S611, the authentication unit 140 of the control device 100 continuously determines whether or not the door security release instruction information 701 has been acquired from the authentication control device 400. If it is determined that the door security release instruction information has been acquired (YES in step S611), in step S612, the authentication unit 140 transmits a door security release instruction to the automatic door 11 to be controlled. In step S611, when door security release instruction information is not acquired (NO in step S611), the process returns to step S611. Further, after the transmission in step S612 is completed, the process returns to step S611.

  Next, processing of the automatic door 11 will be described. In step S <b> 621, the automatic door 11 continuously determines whether a door security release instruction has been acquired from the control device 100. And when it determines with having acquired the door security cancellation | release instruction | indication (it is YES at step S621), the automatic door 11 performs door security cancellation | release in step S622. In step S623, the automatic door 11 waits for a certain period of time with the door security released. In step S624, the automatic door 11 sets (locks) door security. Then, the process returns to step S621. If it is not determined in step S621 that a door security release instruction has been acquired (NO in step S621), the process returns to step S621.

  Next, the flow of processing for executing card authentication by the card reader 12 provided in case the two-dimensional code information cannot be correctly read by the imaging device 13 will be described with reference to FIG. 2 and 3). The same processes as those in FIG. 6 are denoted by the same reference numerals and description thereof is omitted. The case where the two-dimensional code information cannot be read correctly by the imaging device 13 is a case where NO is obtained in steps S602 to S605 in FIG.

  In step S801, the card reader 12 reads information (second identification information) related to the card ID from an IC chip or the like provided in the authentication card C1, and determines whether the card ID has been acquired. When it is determined that the card ID has been acquired (YES in step S801), in step S802, the card reader 12 transmits information related to the card ID to the control device 100. If it is not determined in step S801 that the card ID has been acquired (NO in step S801), the process returns to step S801. Further, even after the transmission in step S802 ends, the process returns to step S801.

  Note that the information transmitted by the card reader 12 to the control device 100 includes card reader identification information for identifying the card reader 12 in addition to the information related to the card ID. This is because, in the control device 300 shown in FIG. 1, a plurality of card readers 32 and 42 may be connected, and it is necessary to identify these card readers.

  Next, in step S811, the authentication unit 140 of the control device 100 continuously determines whether or not a card ID has been acquired from the card reader 12. If it is determined that the card ID has been acquired (YES in step S811), in step S812, the authentication unit 140 refers to the authentication table 111 using the acquired card ID, and the card extracted in the authentication table 111. It is determined whether or not there is an ID.

  If there is a card ID in the authentication table 111 (YES in step S812), in step S813, the authentication unit 140 determines whether or not cancellation is permitted (permitting door security cancellation) corresponding to the card ID. . Specifically, the authentication unit 140 refers to the authentication table 111 and extracts the door identification information with the flag “1” from the door identification information associated with the card ID. Further, the authentication unit 140 uses the card reader identification information received in step S811 to identify the door identification information of the control target door information associated with the card reader identification information. Next, the authentication unit 140 determines whether or not the specified door identification information exists in the door identification information with the flag “1”. And when it determines with existing, the authentication part 140 determines with cancellation | release permission.

  If it is determined in step S813 that release is permitted (YES in step S813), in step S814, the authentication unit 140 transmits a door security release instruction to the automatic door 11 to be controlled. If NO in steps S811 to S813, the process returns to step S811. Further, the processing returns to step S811 even after the transmission in step S814 ends.

  Further, steps S621 to S624 of the automatic door 11 are the same as those in FIG.

(Second Embodiment)
Next, the structure of the door security system 1B in 2nd Embodiment is shown in FIG. In the second embodiment, the authentication control device 400 of the first embodiment does not exist, and each control device 100a, 200a, 300a has the function of the authentication control device 400. The components other than the control devices 100a, 200a, and 300a are the same as those in FIG.

  FIG. 10 shows an example of the function of the control device 100a. The function of the control device 100a is a combination of the function of the control device 100 shown in FIG. 2 and the function of the authentication control device 400 shown in FIG. The same functions as those in FIG. 2 are denoted by the same reference numerals, and the same functions as those in FIG. 4 are denoted by the same reference numerals with “b” and description thereof is omitted.

<< Flow of door security release in the second embodiment >>
The door security release flow in the second embodiment will be described with reference to FIG. 11 (see FIGS. 5 and 10 as appropriate). Note that the same processing steps as those in FIGS. 6 and 8 are denoted by the same reference numerals and description thereof is omitted.

  First, in step S1101, the image analysis unit 440b of the control device 100a acquires image information transmitted from the imaging device 13. The image information is transmitted together with the image capturing device network address of the image capturing device 13 that is the transmission source. In step S1102, the image analysis unit 440b analyzes the received image information and extracts a two-dimensional code (two-dimensional information). If a two-dimensional code is extracted (YES in step S1102), in step S1103, the card ID extraction unit 450b extracts a card ID (identification information) from the extracted two-dimensional code. Next, when the card ID is extracted (YES in step S1103), in step S1104, the authentication unit 140 refers to the authentication table 111 using the extracted card ID and extracts the card ID extracted in the authentication table 111. It is determined whether or not there is.

  Steps S813 and S814 after step S1104 and steps S621 to S624 in the automatic door 11 are the same as those described above, and thus the description thereof is omitted. Further, the flow of processing for executing door security cancellation by the card reader 12 provided in case the reading of the two-dimensional code information by the imaging device 13 cannot be performed correctly is the same as the processing in FIG. Therefore, illustration and description are omitted.

  As described above, in each embodiment, the door security system 1A (1B) includes the imaging device 13 and the authentication control device 400 (control device 100a), and the authentication control device 400 (control device 100a) controls the automatic door 11. It is configured to be controlled and communicably connected to the imaging device 13. The authentication control device 400 (control device 100a) includes a code ID (identification information) of a two-dimensional code (or a card ID if printed on a card) and a door whose security can be released when the code ID is acquired. Are previously stored in the authentication table 411 (authentication table 111). Further, the authentication control device 400 (the control device 100a) acquires, as image information, a two-dimensional code photographed by the imaging device 13 having an automatic tracking and autofocus function during the movement of the user H1. Then, the authentication control device 400 (the control device 100a) performs image analysis on the acquired image information to extract the two-dimensional code, further extracts a code ID from the extracted two-dimensional code, and the code ID And the authentication table 411 (authentication table 111) are used to determine whether or not to unlock the door. With this configuration, the code ID is authenticated and the security is released by wearing or holding the two-dimensional code within the imaging range of the imaging device 13 while the user is moving. This eliminates the need for the user H1 to stop in front of the door.

  In addition, since the imaging device 13 of the present embodiment can also be used as a security camera, it is not necessary to newly install a close-up type camera dedicated to reading a two-dimensional code. In addition, since it is possible to photograph a distant place, there is an effect that it is not necessary to install a close-up type camera according to the height of a wheelchair user, apart from installing a close-up type camera at a normal height.

  When photographing from the front direction of the user H1 moving toward the automatic door 11, the imaging device 13 hangs the authentication card C1 from the neck using a neck strap or the like, or attaches it to the chest position. This makes it easy to photograph the authentication card C1. Thus, even if the user H1 does not bother to present the authentication card C1 to the imaging device 13, the authentication control device 400 (control device 100a) in the present embodiment can authenticate the card ID.

  Further, by adding that the user's face is not hidden as one of the conditions for canceling the door security, it is possible to improve the security by authenticating only the code ID using the two-dimensional code.

  Further, in the present embodiment, the case of an automatic door as an example has been described. However, when the door is an electric lock door, the control device 100 (100a) may be configured to set a security set (locking) as necessary. ) Is added to the electric lock to activate the door security.

Moreover, although this embodiment demonstrated the case where the two-dimensional code was printed on the authentication card | curd C1, the authentication medium on which a two-dimensional code is printed is not limited to a card | curd. A two-dimensional code may be displayed on the screen of a mobile phone or a mobile terminal. If the mobile phone or mobile terminal incorporates a non-contact IC chip, authentication by the card reader 12 or the like is possible.
Moreover, although the case where the card reader 12 was used was demonstrated in this invention, if it can read an authentication medium, it will not be limited to a card reader.

  Further, the present embodiment can be applied not only at doorways of detached houses, apartment houses, office buildings, but also at ticket gates of stations, theaters, and the like.

1A, 1B Door security system 11, 21, 31, 41 Automatic door (door)
12, 22, 32, 42 Card reader (reading device)
13, 23, 33, 43 Imaging device 100, 200, 300 Control device 100a, 200a, 300a Control device 110, 410 Storage unit 111, 411 Authentication table 140, 460 Authentication unit 400 Authentication control device (control device)
432, 432b Imaging device control unit 440, 440b Image analysis unit 450, 450b Card ID extraction unit (identification information extraction unit)
500 network C1 authentication card H1 user

Claims (8)

A door security system that reads two-dimensional information for authentication carried by a user and determines whether or not to unlock the door,
An imaging device and a control device;
The control device is communicably connected to the imaging device,
The controller is
Storing an authentication table associating identification information extracted from the two-dimensional information with a door capable of releasing security when the identification information is acquired;
Obtaining the image including the two-dimensional information photographed by the imaging device during the movement of the user as image information,
Perform a predetermined image analysis on the acquired image information to acquire the two-dimensional information,
Extract identification information from the acquired two-dimensional information,
A door security system characterized by using the extracted identification information and the authentication table to determine whether or not to unlock the door. The door security system according to claim 1, wherein the imaging device is a security camera installed for crime prevention. The control device further includes:
Extracting the user's face by performing image analysis on the image information transmitted from the imaging device,
When it is determined that the security of the door is to be released by the determination using the identification information extracted from the two-dimensional information and the authentication table, and when the face of the user is extracted, the door The door security system according to claim 1 or 2, wherein the security of the door is released. The two-dimensional information is printed on an object,
When the control device detects the object from the image information captured by the imaging device, the control device focuses on the two-dimensional information printed on the object and captures the two-dimensional information. The door security system according to any one of claims 1 to 3. The two-dimensional information is printed on the object with ink that is not visible under visible light and visible only under infrared light,
The door security system according to claim 4, wherein the imaging device captures an image using infrared light. The door security system according to claim 4, wherein the two-dimensional information is printed using ink that cannot be copied by a copying machine. The two-dimensional information is printed on an authentication medium having second identification information recorded by means other than the two-dimensional information,
The door security system further includes a reader that is installed in the vicinity of the door and reads the second identification information from the authentication medium presented by the user,
The reading device is communicably connected to the control device,
When the two-dimensional information cannot be read correctly by the imaging device,
The controller is
The determination as to whether or not to release the security of the door is made based on the second identification information presented to the reading device by the user and read by the reading device. The door security system described. A control device used in a door security system that reads two-dimensional information for authentication carried by a user and determines whether to release door security,
The controller is
Connected to the imaging device to be able to communicate,
A storage unit that stores an authentication table that associates the identification information extracted from the two-dimensional information with a door whose security can be released when the identification information is acquired;
An image obtained by acquiring, as image information, a video including the two-dimensional information captured by the imaging device while the user is moving, and performing predetermined image analysis on the acquired image information. An analysis unit;
An identification information extraction unit that extracts identification information from the acquired two-dimensional information;
A control apparatus comprising: an authentication unit that determines whether to release security of the door using the identification information extracted by the identification information extraction unit and the authentication table.

Images