JP5586447B2 - Video surveillance device and video surveillance system - Google Patents

Description

  The present invention is applied to, for example, a system typified by hands-free entry / exit management and the like, and relates to an image monitoring apparatus and an image monitoring system for recording an image of a person entering / leaving a room.

In an entrance / exit management device, generally, ID information (for example, ID information recorded on an IC card) of an entrance / exit read by an authentication machine is recorded as a history log.
However, when the entrance / exit management device alone is used, for example, when a user who is permitted to enter / exit drops the card and another person picks up the card and uses it, or the user is allowed to enter the room together with the user who is permitted to enter / exit. It is difficult to detect security violations when doing so.
Therefore, as a system for deterring unauthorized card users and deterring shared rooms, a video monitoring system has been developed that records the video of a room occupant in conjunction with an entrance / exit management device and a video monitoring device ( (See Non-Patent Document 1 below).

  In the management of entrance / exit, video surveillance apparatuses adopting methods such as step-up authentication between a plurality of card reader authenticators and anti-passback in order to increase security are disclosed in Patent Documents 1 to 4 below. It is disclosed.

JP 2006-338467 A (paragraph numbers [0004] to [0005]) JP 2009-70125 A (paragraph number [0015]) JP 2008-40828 A (paragraph numbers [0047] to [0050]) JP 2010-152552 A (paragraph number [0010])

DIGITAL MELOO / Entrance / exit management cooperation http://www.mitsubishielectric.co.jp/cctv/digitalmelook/viewer_sw8000dg.html

  Since the conventional video monitoring apparatus is configured as described above, when a person entering and leaving the room stops and receives authentication, it is possible to easily record the video of the person who enters and leaves the room. However, if the entry / exit person does not stop and the authentication process can be received even while moving, for example, even if the video when the authentication is successful is recorded, the entry / exit person has already left the shooting range of the surveillance camera. Since there are cases where the person entering or leaving the room is not shown, it is necessary to record a video from a point several seconds before the successful authentication. Therefore, there is a problem that the recorded video may include useless video that is not necessary for monitoring.

  The present invention has been made to solve the above-described problems, and can accurately record a video showing a person entering or leaving the room, while avoiding unnecessary video recording that is not necessary for monitoring. An object of the present invention is to obtain a video monitoring device and a video monitoring system that can be used.

  The video monitoring apparatus according to the present invention is installed in each of a plurality of small areas in the monitoring area, and includes a plurality of authentication devices having a radio wave arrival range indicating the authentication device ID in the small area, and a user having a plurality of small areas. By entering one of the small areas, the ID transmitter owned by the user receives the radio wave transmitted from the authentication machine installed in the small area, and the authentication indicated by the radio wave When a radio wave indicating a machine ID and a user ID identifying a user is transmitted, an ID receiving unit that receives the radio wave indicating the authentication machine ID and the user ID, an authentication machine ID and a user ID indicated by the radio wave received by the ID receiving unit, When a radio wave indicating another authentication machine ID and user ID different from the authentication machine ID is received by the ID registration unit and a preliminary registration unit that pre-registers a set of reception times, an associated authentication unit Referring to the association table indicating the combination, the authentication machine ID of the authentication machine associated with the authentication machine indicated by another authentication machine ID is acquired, and the pair of the authentication machine ID and the user ID is preliminarily registered by the preliminary registration unit. Registration confirmation means for confirming whether or not it has been preliminarily registered, and when the registration confirmation means confirms that it is pre-registered, from the reception time of the pre-registered authentication machine ID and the reception time of another authentication machine ID A passage time calculating means for calculating a time when the user passes the predetermined point, and a time calculated by the passage time calculating means among the images of the monitoring camera in which the video recording means is photographing the monitoring area The video shot is recorded.

  According to the present invention, a plurality of authentication devices installed in each of a plurality of small areas in the monitoring area and having a radio wave indicating the authentication device ID in the small area, and a user in the plurality of small areas By entering one of the small areas, the ID transmitter owned by the user receives the radio wave transmitted from the authentication machine installed in the small area, and the authentication machine ID indicated by the radio wave and When a radio wave indicating a user ID for identifying a user is transmitted, an ID receiving unit that receives the radio wave indicating the authentication machine ID and the user ID, an authentication machine ID and a user ID indicated by the radio wave received by the ID receiving unit, and a reception time When a pre-registration means for pre-registering a pair and a radio wave indicating another authentication machine ID and user ID different from the authentication machine ID are received by the ID reception means, the associated authentication machine combination is indicated. Whether the authentication machine ID of the authentication machine associated with the authentication machine indicated by another authentication machine ID is obtained with reference to the association table, and the pair of the authentication machine ID and the user ID is pre-registered by the preliminary registration unit If it is confirmed by the registration confirmation means that confirms whether or not the preliminary registration is performed by the registration confirmation means, the user can determine from the reception time of the pre-registered authentication machine ID and the reception time of another authentication machine ID. A passage time calculating means for calculating a time passing through a predetermined point is provided, and the image recording means is photographed at a time calculated by the passage time calculating means among the images of the monitoring camera photographing the monitoring area. The video is recorded so that the user can accurately record the video, while avoiding unnecessary video recording that is not necessary for monitoring.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the image | video monitoring system by Embodiment 1 of this invention. It is a block diagram which shows the entrance / exit management apparatus 15 by Embodiment 1 of this invention. It is a flowchart which shows the processing content of the entrance / exit management apparatus 15 by Embodiment 1 of this invention. It is explanatory drawing which shows an example of an authentication table. It is explanatory drawing which shows an example of an authentication machine correlation table. It is explanatory drawing which shows an example of a dynamic information cache table. It is explanatory drawing which shows an example of the monitoring camera table. It is explanatory drawing which shows an example of the optimal imaging | photography point table. It is a block diagram which shows the video surveillance system by Embodiment 2 of this invention. It is a block diagram which shows the video surveillance system by Embodiment 3 of this invention. It is a block diagram which shows the entrance / exit management apparatus 44 by Embodiment 3 of this invention. 2 is a configuration diagram illustrating an example of a video monitoring system in which an authentication machine 11 is installed outside a room 2 and an authentication machine 12 is installed inside the room 2. FIG.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a video monitoring system according to Embodiment 1 of the present invention.
In FIG. 1, for example, the monitoring camera 1 is installed outside the door 3 with an electric lock in a room 2 where entry / exit is restricted, and images an area (monitoring area) in the vicinity of the door 3 with an electric lock.
The surveillance video recording device 4 is a recording device that records video taken by the surveillance camera 1. This video includes a still image in addition to a moving image, and the surveillance video recording device 4 records a video data file.
In FIG. 1, for the sake of simplification of the drawing, one monitoring camera 1 and one monitoring video recording device 4 are shown. In the first embodiment, N monitoring cameras 1 and monitoring video recording devices 4 are shown. Is installed.
In FIG. 1, it is assumed that the connection between the monitoring camera 1 and the monitoring video recording device 4 is an analog system (NTSC). However, when the monitoring camera 1 is a network compatible camera, the monitoring camera 1 is connected to the network 17. You may make it connect.

The authenticator 11 has an “HFA1” authenticator ID recorded therein, and performs a process of transmitting a radio wave indicating the authenticator ID at regular intervals.
The authenticator 11 is installed in the area A near the entrance to the monitoring area, and the reach of the radio wave indicating the authenticator ID is within the area A.
The authenticator 12 has an “HFA2” authenticator ID recorded therein, and performs a process of transmitting a radio wave indicating the authenticator ID at regular intervals.
The authenticator 12 is installed in the area B near the electric lock door 3 and the reach of the radio wave indicating the authenticator ID is within the area B.
The radio waves of the authentication machines 11 and 12 are, for example, an LF radio band and a range of about 2 m.

The hands-free tag (indicated as “HFT” in FIG. 1) 13 is, for example, a semi-active tag type ID tag (ID transmitter), and a user ID for identifying the user is recorded therein.
When the user enters the area A or the area B and receives a radio wave transmitted from the authentication machine 11 installed in the area A or the authentication machine 12 installed in the area B, the hands-free tag 13 receives the radio wave. The process which transmits the radio wave which shows the authentication machine ID which shows and user ID is implemented.
The first embodiment shows an example in which the hands-free tag 13 is a semi-active tag type ID tag. However, the present invention is not limited to a semi-active tag type ID tag, and a passive type tag may be used. Good.
Note that the semi-active tag type ID tag is an ID tag that outputs radio waves only when necessary, unlike an active tag type ID tag that always outputs radio waves.
In the first embodiment, a semi-active tag type ID tag is used in order to extend the life of the built-in battery of the hands-free tag 13. However, in the case where there is little need to extend the life of the built-in battery, etc. Needless to say, an active tag type ID tag may be used.

A hands-free receiver (indicated as “HFR” in FIG. 1) 14 performs processing for receiving radio waves transmitted from the hands-free tag 13.
The radio wave receiving range in the hands-free receiver 14 is within the range of the area 14a and is a wide range including the areas A and B.
The hands-free receiver 14 is a UHF radio band and can receive radio waves from the hands-free tag 13 in a range of about 100 m.

If the user who has the hands-free tag 13 is a user who is allowed to enter the room 2, the entrance / exit management device 15 performs a process of unlocking the key of the door 3 with the electric lock.
Further, the entrance / exit management device 15 calculates the time when the user holding the hands-free tag 13 passes through the optimum shooting area 18, and passes the passage from the video recorded by the surveillance video recording device 4. A process of acquiring the video of the time and recording the video inside is executed.
The entrance / exit management device 15 is connected to the monitoring video recording device 4 through a network 17 such as a LAN (Ethernet: registered trademark).
The entrance / exit management device 15 in FIG. 1 is connected to the hands-free receiver 14 via a cable, but may be connected to the hands-free receiver 14 via a network 17.

The integrated monitoring device 16 manages, for example, registration / update / revocation management of user IDs, entry / exit control information for each area by day of the week / time zone, and association setting processing between the monitoring camera 1 and the monitoring video recording device 4 A terminal that performs processing for dividing a screen and displaying images of a plurality of surveillance cameras 1.
In the example of FIG. 1, the video monitoring device is configured by the authentication devices 11 and 12, the hands-free receiver 14, the entrance / exit management device 15, and the integrated monitoring device 16.
The monitoring video recording device 4, the entrance / exit management device 15 and the integrated monitoring device 16 are equipped with a time synchronization function.
The time synchronization function is a function for synchronizing the times of the monitoring video recording device 4, the entrance / exit management device 15, and the integrated monitoring device 16.
For example, time synchronization in each apparatus is necessary for the process of cutting out an optimal video. Generally, control is performed using NTP or the like, but the present invention is not limited to this.

FIG. 2 is a block diagram showing the entrance / exit management device 15 according to Embodiment 1 of the present invention.
In FIG. 2, the ID acquisition unit 21 includes an interface for the hands-free receiver 14, and performs a process of acquiring an authentication machine ID and a user ID indicated by the radio wave received by the hands-free receiver 14.
The hands-free receiver 14 and the ID acquisition unit 21 constitute an ID receiving unit.

The pre-registration unit 22 is composed of, for example, a semiconductor integrated circuit on which a CPU is mounted, a one-chip microcomputer, or the like, and the authentication machine ID, user ID, reception time, and radio wave intensity (hands) acquired by the ID acquisition unit 21 A process of pre-registering a set such as the reception intensity of radio waves transmitted from the authenticators 11 and 12 in the free tag 13 in the dynamic information cache table (see FIG. 6) is performed. Note that the preliminary registration unit 22 constitutes preliminary registration means.
The authentication processing unit 23 includes an ID acquisition unit 21 in an authentication table (see FIG. 4) in which a user ID for identifying a user who is permitted to enter the room 2 (passing through the door 3 with electric lock) is registered. The user ID that matches the user ID (for example, “U0001”) received together with another authentication machine ID (for example, “HFA2”) different from the authentication machine ID (for example, “HFA1”) acquired by A process for confirming whether or not it has been performed is performed. The authentication processing unit 23 constitutes an authentication unit.

  The preliminary registration confirmation unit 24 is composed of, for example, a semiconductor integrated circuit on which a CPU is mounted or a one-chip microcomputer, and is different from the authentication machine ID (for example, “HFA1”) acquired by the ID acquisition unit 21. When an authentication machine ID (for example, “HFA2”) and a user ID are acquired, another authentication machine is referred to by referring to an authentication machine association table (see FIG. 5) indicating a combination of associated authentication machines. A process of acquiring the authentication machine ID of the authentication machine 11 associated with the authentication machine 12 indicated by the ID and confirming whether or not the pair of the authentication machine ID and the user ID is pre-registered in the dynamic information cache table To do. The preliminary registration confirmation unit 24 constitutes a registration confirmation unit.

The key control unit 25 is composed of, for example, a semiconductor integrated circuit mounted with a CPU or a one-chip microcomputer, and it is confirmed by the authentication processing unit 23 that a matching user ID is registered, and a spare When it is confirmed by the registration confirmation unit 24 that preliminary registration is performed, a process of unlocking the key of the door 3 with electric lock is performed. The key control unit 25 constitutes a key control means.
The passage time calculation unit 26 is composed of, for example, a semiconductor integrated circuit on which a CPU is mounted, a one-chip microcomputer, or the like, and is preliminarily registered when it is confirmed by the preliminary registration confirmation unit 24 that it is preliminarily registered. The time when the user passes through the optimum photographing area 18 (predetermined point) from the reception time of the authentication device ID (for example, “HFA1”) and the reception time of another authentication device ID (for example, “HFA2”). The process of calculating is performed. The passage time calculation unit 26 constitutes passage time calculation means.

The video recording processing unit 27 is composed of, for example, a semiconductor integrated circuit on which a CPU is mounted or a one-chip microcomputer. The video recording processing unit 27 is calculated by the passage time calculating unit 26 out of the video recorded by the monitoring video recording device 4. A process of recording a video shot at a predetermined time in the video management DB 29 is performed. Further, along with the video, the authentication time by the authentication processing unit 23 (time when it is confirmed that the matching user ID is registered) and the user ID are associated and recorded in the video management DB 29. The video recording processing unit 27 constitutes video recording means.
The entrance management DB 28 records on the hard disk or the like that manages the authentication table in FIG. 4, the authentication machine association table in FIG. 5, the dynamic information cache table in FIG. 6, the surveillance camera table in FIG. 7, the optimum shooting point table in FIG. Device.

  The video management DB 29 is a recording device such as a hard disk that records the video at the time calculated by the passage time calculation unit 26 in association with the authentication time by the authentication processing unit 23 and the user ID. However, the video management DB 29 is not limited to a relational database, and may be a database on a memory table or a file system as long as data can be managed.

The unauthorized recording processing unit 30 is constituted by, for example, a semiconductor integrated circuit on which a CPU is mounted or a one-chip microcomputer. If the authentication processing unit 23 does not confirm that a matching user ID is registered, the unauthorized recording processing unit 30 Along with an error message indicating an error, a process of recording the video of the monitoring camera 3 in a video management DB 29 a predetermined time before (for example, 1 second before) the reception time of the authentication machine ID of the authentication machine 12 is performed. .
Further, if the pre-registration confirmation unit 24 does not confirm that the pre-registration is confirmed, the fraudulent recording processing unit 30 includes the authentication machine ID of the authenticator 12 together with an error message indicating that the user's passage is invalid. A process of recording the video of the monitoring camera 3 before a predetermined time (for example, one second before) from the reception time in the video management DB 29 is performed.
The unauthorized recording processing unit 30 constitutes an unauthorized authentication recording unit and an unauthorized passage route recording unit.

  In the example of FIG. 2, an ID acquisition unit 21, a preliminary registration unit 22, an authentication processing unit 23, a preliminary registration confirmation unit 24, a key control unit 25, a passage time calculation unit 26, and a video recording that are components of the entrance / exit management device 15. Although it is assumed that each of the processing unit 27 and the unauthorized recording processing unit 30 is configured by dedicated hardware, when the entrance / exit management device 15 is configured by a computer or the like, the ID acquisition unit 21, All of the programs describing the processing contents of the preliminary registration unit 22, the authentication processing unit 23, the preliminary registration confirmation unit 24, the key control unit 25, the passage time calculation unit 26, the video recording processing unit 27, and the unauthorized recording processing unit 30 or A part may be stored in the memory of a computer, and the CPU of the computer may execute a program stored in the memory.

FIG. 3 is a flowchart showing the processing contents of the entrance / exit management device 15 according to Embodiment 1 of the present invention.
The ID acquisition unit 21, the preliminary registration unit 22, the authentication processing unit 23, the preliminary registration confirmation unit 24, the key control unit 25, the passage time calculation unit 26, the video recording processing unit 27, and the unauthorized recording processing unit 30 are all entered / exited. It is not necessary to be mounted on the management device 15, and some of these components may be mounted on the integrated monitoring device 16.

Next, the operation will be described.
The authenticator 11 transmits a radio wave indicating the authenticator ID of “HFA1” recorded therein at a constant cycle.
The authenticator 12 also transmits a radio wave indicating the “HFA2” authenticator ID recorded therein at a constant cycle.
The range in which the radio wave transmitted from the authenticator 11 reaches is within the area A, and the range in which the radio wave transmitted from the authenticator 12 reaches is within the area B.

When the user who has the hands-free tag 13 enters the area A near the entrance to the monitoring area, the hands-free tag 13 receives radio waves transmitted from the authentication device 11 installed in the area A.
When the hands-free tag 13 receives the radio wave transmitted from the authenticator 11 (step ST1), the hands-free tag 13 recognizes the authenticator ID indicated by the radio wave, and the authenticator ID, the user ID and the radio wave intensity information recorded therein. A radio wave indicating (information indicating the reception intensity of the radio wave transmitted from the authenticator 11) is transmitted (step ST2).
Here, for convenience of explanation, it is assumed that the user ID recorded in the hands-free tag 13 is “U0001”.
Each time the hands-free tag 13 receives a radio wave transmitted from the authenticator 11, the hands-free tag 13 transmits a radio wave indicating a user ID or the like. However, if the hands-free tag 13 is a semi-active tag type ID tag, authentication is performed. When the radio wave indicating the same authentication machine ID is received several times from the machine 11, the sleep mode is entered and the radio wave indicating the user ID or the like is not transmitted.

When the handsfree tag 13 transmits a radio wave, the handsfree receiver 14 receives the radio wave (step ST3).
When the hands-free receiver 14 receives a radio wave, the ID acquisition unit 21 of the entrance / exit management device 15 acquires the authentication machine ID “HFA1”, the user ID “U0001”, and the radio wave intensity information indicated by the radio wave.
The pre-registration unit 22 of the entrance / exit management device 15 sets the set of the authentication machine ID, user ID, reception time, radio wave intensity, traffic type, and cache timer acquired by the ID acquisition unit 21 in the dynamic information cache table in the entrance management DB 28. Is preliminarily registered (step ST4).
In FIG. 6, the reception time is “08:30:30”, the authentication machine ID is “HFA1”, the user ID is “U0001”, the traffic type is “preliminary detection”, the radio wave intensity is “10”, and the cash timer is “60”. An example is shown.
Note that the value of the cache timer is decreased by the preliminary registration unit 22 as time elapses, and when the value of the cache timer becomes zero, the preliminary registration unit 22 deletes the preliminary registration from the dynamic information cache table of FIG. Is done.

Thereafter, when the user carrying the hands-free tag 13 moves and enters the area B near the front of the door 3 with the electric lock, the hands-free tag 13 is removed from the authentication device 12 installed in the area B. Receive transmitted radio waves.
When the hands-free tag 13 receives the radio wave transmitted from the authentication machine 12 (step ST5), the hands-free tag 13 recognizes the authentication machine ID “HFA2” indicated by the radio wave, and the authentication machine ID, user ID “U0001”, and radio wave intensity information. Is transmitted (step ST6).
The hands-free tag 13 transmits a radio wave indicating a user ID or the like every time a radio wave transmitted from the authenticator 12 is received. However, if the hands-free tag 13 is a semi-active tag type ID tag, authentication is performed. When a radio wave indicating the same authentication machine ID is received several times from the machine 12, the sleep mode is entered and the radio wave indicating the user ID or the like is not transmitted.

When the handsfree tag 13 transmits a radio wave, the handsfree receiver 14 receives the radio wave (step ST7).
When the hands-free receiver 14 receives the radio wave, the ID acquisition unit 21 of the entrance / exit management device 15 acquires the authentication machine ID “HFA2”, the user ID “U0001”, and the radio wave intensity information indicated by the radio wave.
The authentication processing unit 23 of the entrance / exit management device 15 includes an authentication table in the entrance management DB 28 in which a user ID for identifying a user who is allowed to enter the room 2 (passing through the door 3 with the electric lock) is registered. Then, it is confirmed whether or not a user ID that matches the user ID “U0001” acquired by the ID acquisition unit 21 is registered (step ST8).
The authentication table of FIG. 4 shows an example in which a user ID “U0001” is registered.

If a matching user ID is registered, the authentication processing unit 23 notifies the key control unit 25 that the authentication is successful.
On the other hand, if the matching user ID is not registered, the unauthorized recording processing unit 30 is notified that the authentication is unsuccessful.
When the unauthorized recording processing unit 30 receives notification from the authentication processing unit 23 that the authentication is unsuccessful, the unauthorized recording processing unit 30 acquires the authentication machine ID of the authentication machine 12 from the video of the monitoring camera 1 recorded by the video recording device 4. A video before a predetermined time (for example, 1 second before) is cut out from the reception time, and the video is recorded in the video management DB 29 together with an error message indicating an authentication error (step ST9).
As with the video recording processing unit 27 described later, the video that has been cut out by the unauthorized recording processing unit 30 is preliminarily registered with the authentication machine ID “HFA1” and the authentication machine ID “HFA2” acquired by the ID acquisition unit 21. The video is recorded in the video recording device 4 corresponding to the set.

When the preliminary registration confirmation unit 24 of the entrance / exit management device 15 receives a notification that the authentication is successful from the authentication processing unit 23, it is acquired by the ID acquisition unit 21 with reference to the authentication machine association table in the entrance management DB 28. The authentication machine ID of the authentication machine associated with the authentication machine 12 indicated by the authentication machine ID “HFA2” is searched (step ST10).
The authentication machine association table in FIG. 5 shows an example in which the authentication machine 11 with the authentication machine ID “HFA1” and the authentication machine 12 with the authentication machine ID “HFA2” are associated with each other.
Therefore, in the first embodiment, “HFA1” is acquired as the authentication machine ID of the authentication machine 11 associated with the authentication machine 12 whose authentication machine ID is “HFA2”.

Upon obtaining “HFA1” as the authentication machine ID of the authentication machine 11 associated with the authentication machine 12 having the authentication machine ID “HFA2”, the preliminary registration confirmation unit 24 acquires the authentication machine ID “HFA1” and the user ID “U0001”. Whether or not a set of “user ID“ U0001 ”acquired together with authentication machine ID“ HFA2 ”acquired by ID acquisition unit 21” is preliminarily registered in the dynamic information cache table in the room entry management DB 28. Confirm (step ST11).
In the dynamic information cache table of FIG. 6, a pair of authentication machine ID “HFA1” and user ID “U0001” is preliminarily registered by the preliminary registration unit 22.
If the pair of the authentication machine ID “HFA1” and the user ID “U0001” is preliminarily registered, the preliminary registration confirmation unit 24 notifies the key control unit 25 that the preliminary registration has been performed.
On the other hand, when the preliminary registration is not performed, the unauthorized recording processing unit 30 is notified that the preliminary registration is not performed.

  When the unauthorized recording processing unit 30 receives a notification from the preliminary registration confirming unit 24 that the preliminary registration is not performed, the unauthorized recording processing unit 30 selects the authentication machine ID of the authentication machine 12 from the video of the monitoring camera 1 recorded by the video recording device 4. A video of a predetermined time (for example, 1 second before) is cut out from the received time of the video, and the video is recorded in the video management DB 29 together with an error message indicating that the user's passage is invalid (step ST12).

When the key control unit 25 of the entrance / exit management device 15 receives the notification that the preliminary registration is performed from the preliminary registration confirmation unit 24, the key control unit 25 obtains the electric lock ID corresponding to the user ID “U0001” from the authentication table in the entrance management DB 28. The key of the door 3 with an electric lock is unlocked using the electric lock ID (step ST13).
In the example of FIG. 4, “D1” is recorded as the electric lock ID corresponding to the user ID “U0001”.

When the key control unit 25 unlocks the key of the door 3 with the electric lock, the passing time calculation unit 26 of the entrance / exit management device 15 refers to the monitoring camera table in the entrance management DB 28 and is preliminarily registered authentication machine. The monitoring camera 1 and the video recording device 4 corresponding to the set of the ID “HFA1” and the authentication machine ID “HFA2” acquired by the ID acquisition unit 21 are searched.
In the monitoring camera table of FIG. 7, the monitoring camera C1 and the video recording device R1 are recorded as the monitoring camera 1 and the video recording device 4 corresponding to the set of the authentication device ID “HFA1” and the authentication device ID “HFA2”. .

Next, the passage time calculation unit 26 refers to the optimum photographing point table in the room entrance management DB 28, and between the authentication machine 11 with the authentication machine ID “HFA1” and the authentication machine 12 with the authentication machine ID “HFA2”. The distance, the optimum shooting point (for example, the center point of the optimum shooting area 18), and the distance between the authenticator 11 and the optimum shooting point are acquired.
The optimum shooting point table in FIG. 8 shows an example in which the distance between the authentication device 11 and the authentication device 12 is “10 m” and the distance between the authentication device 11 and the optimum shooting point is “3 m”.

Next, the passage time calculation unit 26 calculates a time difference between the reception time of the authentication machine ID “HFA1” and the reception time of the authentication machine ID “HFA2” preliminarily registered in the dynamic information cache table in the room entry management DB 28. In addition, the moving speed of the user is calculated by dividing the distance between the authenticator 11 and the authenticator 12 by the time difference.
Then, by dividing the distance between the authentication device 11 and the optimum photographing point by the moving speed of the user, the time T when the user passes the optimum photographing point is calculated (step ST14).

When the passage time calculation unit 26 calculates the optimum photographing point passage time T, the video recording processing unit 27 of the entrance / exit management device 15 records the video corresponding to the set of the authentication machine ID “HFA1” and the authentication machine ID “HFA2”. Of the video recorded by the apparatus 4 (video of the monitoring camera 1 corresponding to the set of the authentication machine ID “HFA1” and the authentication machine ID “HFA2”), the video shot at the passing time T is a data file or video. The video at the passage time T is taken out as an index and recorded in the video management DB 29 (step ST15).
When the video at the passage time T is recorded in the video management DB 29, the authentication time by the authentication processing unit 23 (the time when the matching user ID is confirmed to be registered) and the user ID are recorded together with the video. The image is recorded in the video management DB 29 in association with each other.

  As is apparent from the above, according to the first embodiment, the authenticator 11 is installed in the area A or the area B in the monitoring area, and the radio wave arrival range indicating the authenticator ID is in the area A or the area B. , 12 and the user enters the area A or area B, the hands-free tag 13 possessed by the user receives the radio wave transmitted from the authenticator 11 or the authenticator 12, and the radio wave When a radio wave indicating an authentication machine ID and a user ID is transmitted, a hands-free receiver 14 that receives the radio wave indicating the authentication machine ID and the user ID, and an authentication machine ID and a user ID indicated by the radio wave received by the hands-free receiver 14 And another registration machine ID and user ID different from the above-mentioned authentication machine ID are received by the preliminary registration unit 22 that pre-registers the set of the reception time and the hands-free receiver 14. In this case, the authentication machine ID of the authentication machine associated with the authentication machine indicated by another authentication machine ID is obtained with reference to the association table indicating the combination of the associated authentication machines, and the authentication machine ID and the user ID are acquired. A preliminary registration confirmation unit 24 for confirming whether or not the pair is pre-registered by the preliminary registration unit 22, and if the preliminary registration confirmation unit 24 confirms that the pair is pre-registered, the pre-registered authentication device There is provided a passage time calculation unit 26 for calculating the time when the user passes the optimum photographing point from the reception time of the ID and another authentication machine ID, and the video recording processing unit 27 photographs the monitoring area. Since the video captured at the time calculated by the passage time calculation unit 26 is recorded, the video showing the user can be recorded accurately. On the other hand, offers an advantage of being able to avoid the recording of unnecessary image is not necessary on the monitoring.

  Further, according to the first embodiment, the user ID that matches the user ID received by the hands-free receiver 14 is registered in the authentication table in which the user ID for identifying the user permitted to pass is registered. It is confirmed that the matching user ID is registered by the authentication processing unit 23 for confirming whether or not it is registered, and the preliminary registration confirmation unit 24 confirms that the matching user ID is registered. In this case, since the key control unit 25 for unlocking the key of the electric lock door 3 is provided, the key of the electric lock door 3 can be used only when the user is moving along an appropriate passage. Can be unlocked, and the security can be improved.

In the first embodiment, an example in which the monitoring area is outside the electric lock door 3 of the room 2 is shown. However, this is only an example, and, for example, entrances and exits of a site or building where security needs to be maintained. Etc. may be the monitoring area.
In the first embodiment, the authentication processing unit 23 performs the authentication process using the user ID. However, this is only an example, and for example, the authentication process by biometric authentication may be performed. Good.
In the first embodiment, an example in which two authentication machines 11 and 12 are installed is shown, but three or more authentication machines may be installed.
For example, when N authentication machines are installed, authentication machine IDs of N-1 authentication machines are preliminarily registered.
In the first embodiment, an example in which the two authentication devices 11 and 12 are installed outside the room 2 is shown. However, as shown in FIG. The authentication machine 12 may be installed inside the room 2. In this case, the authentication machine 11 can be used for entering the room and the authentication machine 12 can be used for leaving the room.

Embodiment 2. FIG.
9 is a block diagram showing a video monitoring system according to Embodiment 2 of the present invention. In the figure, the same reference numerals as those in FIG.
Although the example of FIG. 9 shows an example in which there are two passages (entrance gates) for the flapper gates 41 installed in parallel, the number of entrance gates may be three or more.
The high-definition surveillance camera 42 is a camera that captures the vicinity of the exit of the flapper gate 41 as a surveillance area. Since the video of the high-definition surveillance camera 42 is a high-definition video, the left half or right half of the video is cut out from the video. Is a sufficiently fine image.

The entrance / exit management device 43 has the same function as the entrance / exit management device 15 of FIG.
However, the video recording processing unit 27 of the entrance / exit management device 43 has the following functions added.
That is, the video recording processing unit 27 identifies the authentication device having the higher radio wave reception intensity at the hands-free tag 13 among the authentication devices 11 or 12, and the passage time T calculated by the passage time calculation unit 26. The video of the area (optimal shooting area X or optimal shooting area Y) corresponding to the authentication device with the higher reception strength is cut out from the video shot in the step S4 and the video is recorded in the video management DB 29. To do.
When recording the video in the video management DB 29, information indicating whether the video is in the optimum shooting area X or the video in the optimum shooting area B is also recorded.

As shown in FIG. 9, when there are two optimum shooting areas, it is generally necessary to install two surveillance cameras.
Therefore, when monitoring the traffic state of the flapper gate 41, the number of surveillance cameras is required by the number of traffic paths, and if the number of traffic paths of the flapper gate 41 increases, the cost of the system increases.
In the second embodiment, only one high-definition monitoring camera 42 is installed so that the traffic conditions of a plurality of traffic paths can be monitored.

Next, the operation will be described.
However, in the second embodiment, functions added to the first embodiment will be mainly described.
When the hands-free tag 13 receives a radio wave transmitted from the authenticator 11 or the authenticator 12, as in the first embodiment, the authenticator ID, user ID, and radio wave intensity information (the authenticator 11 or the radio ID) indicated by the radio wave are received. A radio wave indicating the reception intensity of the radio wave transmitted from the authenticator 12 is transmitted.

When the hands-free receiver 14 receives a radio wave, the ID acquisition unit 21 of the entrance / exit management device 43 acquires an authentication machine ID, a user ID, and radio wave intensity information indicated by the radio wave.
The preliminary registration unit 22 of the entrance / exit management device 43 pre-registers a set such as an authentication machine ID, a user ID, and radio wave reception intensity indicated by radio wave intensity information in a dynamic information cache table in the entrance management DB 28.

  When the passage time calculation unit 26 calculates the passage time T of the optimum shooting point, the video recording processing unit 27 selects the passage time T from the video recorded by the video recording device 4 as in the first embodiment. The video taken in the above is taken out as a data file or video index. Among the videos, only the video in the optimal shooting area X in the left half or the video in the optimal shooting area X in the right half of the video is stored in the video management DB 29. Record.

  That is, the video recording processing unit 27 records only the video on the entrance gate side through which the user passes and refers to the dynamic information cache table in the room entrance management DB 28 in order to avoid useless video recording. In the free tag 13, the reception sensitivity of the radio wave transmitted from the authentication device 11 is acquired, and the reception sensitivity of the radio wave transmitted from the authentication device 11 and the radio wave intensity information output from the ID acquisition unit 21 are indicated in the hands-free tag 13. By comparing the reception sensitivity of the radio wave transmitted from the authenticator 12, the authenticator having the higher radio wave reception intensity in the hands-free tag 13 in the authenticator 11 or the authenticator 12 is specified.

If the authenticator with higher radio wave reception intensity at the hands-free tag 13 is the authenticator 11, the video recording processing unit 27 selects the optimum corresponding to the authenticator 11 from the images taken at the passage time T. The video of the shooting area X is cut out and recorded in the video management DB 29.
On the other hand, if the authenticator with higher radio wave reception intensity at the hands-free tag 13 is the authenticator 12, the image of the optimum shooting area Y corresponding to the authenticator 12 from the images taken at the passage time T. And the video is recorded in the video management DB 29.
In addition, when recording the video in the video management DB 29, the video recording processing unit 27 also records information indicating whether the video is in the optimum shooting area X or the optimum shooting area Y.
The authentication time and user ID by the authentication processing unit 23 are also recorded in the video management DB 29 in association with the video, as in the first embodiment.

  As apparent from the above, according to the second embodiment, when the authentication machines are respectively installed at positions corresponding to the plurality of entrance gates installed in parallel, The authentication device with the highest radio wave reception intensity at the free tag 13 is identified, and the image of the area corresponding to the authentication device is cut out from the image taken at the passage time T calculated by the passage time calculation unit 26. Since the video is recorded in the video management DB 29, it is possible to monitor the traffic state of a plurality of entrance gates by simply installing one high-definition monitoring camera 42, and the system configuration is simplified. The effect which can aim at is produced.

Embodiment 3 FIG.
10 is a block diagram showing a video surveillance system according to Embodiment 3 of the present invention. In the figure, the same reference numerals as those in FIG.
The entrance / exit management device 44 has the same function as the entrance / exit management device 15 of FIG. 1, but since the number of installed authentication machines is only one, the user can select the optimum photographing point (for example, optimum photographing). 1 is different from the entrance / exit management device 15 in FIG. 1 in the calculation processing of the time passing through the center point of the area 18.

FIG. 11 is a block diagram showing an entrance / exit management device 44 according to Embodiment 3 of the present invention. In the figure, the same reference numerals as those in FIG.
The preliminary registration confirmation unit 31 is constituted by, for example, a semiconductor integrated circuit on which a CPU is mounted, a one-chip microcomputer, or the like, and the set of the authentication machine ID and the user ID acquired by the ID acquisition unit 21 is stored in the entrance management DB 28. To confirm whether it is pre-registered in the dynamic information cache table.
In the third embodiment, since there is only one authentication device 50 (authentication device whose authentication device ID is “HFA3”), ID acquisition is performed as in the preliminary registration confirmation unit 24 of FIG. When another authentication device ID (for example, “HFA2”) different from the authentication device ID (for example, “HFA1”) acquired by the unit 21 is acquired, the other authentication device is referred to by referring to the authentication device association table. The process of acquiring the authentication machine ID of the authentication machine 11 associated with the authentication machine 12 indicated by the ID is not performed. Therefore, the processing content of the preliminary registration confirmation unit 31 is simplified from the processing content of the preliminary registration confirmation unit 24 of FIG.

  The passage time calculation unit 32 is configured by, for example, a semiconductor integrated circuit on which a CPU is mounted, a one-chip microcomputer, or the like, and a set of user IDs, reception times, and the like is stored in the entrance management DB 28 by the preliminary registration unit 22. After being pre-registered in the cache table, the reception strength of the radio wave transmitted from the authenticator 50 in the hands-free tag 13 is monitored, and when the reception strength reaches a predetermined strength (for example, the highest radio wave strength “10”). From the time and the reception time preliminarily registered by the preliminary registration unit 22, a process of calculating the time when the user passes the optimum shooting point (for example, the center point of the optimum shooting area 18) is performed. The time calculation unit 32 constitutes passage time calculation means.

  In the example of FIG. 11, the ID acquisition unit 21, the preliminary registration unit 22, the authentication processing unit 23, the preliminary registration confirmation unit 31, the key control unit 25, the passage time calculation unit 32, and the video recording that are components of the entrance / exit management device 44. Although it is assumed that each of the processing unit 27 and the unauthorized recording processing unit 30 is configured by dedicated hardware, when the entrance / exit management device 44 is configured by a computer or the like, the ID acquisition unit 21, All of the programs describing the processing contents of the preliminary registration unit 22, the authentication processing unit 23, the preliminary registration confirmation unit 31, the key control unit 25, the passage time calculation unit 32, the video recording processing unit 27, and the unauthorized recording processing unit 30 A part may be stored in the memory of a computer, and the CPU of the computer may execute a program stored in the memory.

Next, the operation will be described.
As in the first embodiment, the preliminary registration unit 22 of the entrance / exit management device 44 uses the authentication machine ID “HFA3”, the user ID “U0002”, the reception time, and the radio wave reception intensity “acquired by the ID acquisition unit 21”. 1 ”, traffic type, and cash termer group are pre-registered in the dynamic information cache table in the entrance management DB 28 (see FIG. 6), but when the user first enters the area A, the user is in the vicinity of the area A. Since it exists in a part and the distance from the authentication machine 50 is long, the reception intensity | strength of the electromagnetic wave transmitted from the authentication machine 50 in the hands-free tag 13 is low.
Thereafter, as the user moves and approaches the center of the area A where the authentication device 50 is installed, the reception intensity of the radio wave transmitted from the authentication device 50 in the hands-free tag 13 increases.

When the key control unit 25 unlocks the key of the door 3 with the electric lock, the passage time calculation unit 32 of the entrance / exit management device 44 receives the reception intensity (ID acquisition unit) of the radio wave transmitted from the authentication device 50 in the hands-free tag 13. 21 is monitored, and the time when the received intensity reaches a predetermined intensity (for example, the highest radio wave intensity “10”) (hereinafter referred to as “the highest intensity time”). Specified).
When the passage time calculation unit 32 specifies the highest intensity time, the passage time calculation unit 32 refers to the dynamic information cache table in the room entry management DB 28 and acquires the radio wave reception sensitivity at the time when the authentication machine ID and the like are pre-registered by the pre-registration unit 22. Then, referring to the optimum photographing point table in the room entry management DB 28, the radio wave intensity “1” at the time of preliminary registration in the authentication machine 50 whose authentication machine ID is “HFA3” and the radio wave intensity “10” at the highest intensity time. Corresponding movement distance (distance between the position of the authenticator 50 at the time of preliminary registration and the position of the authenticator 50 at the highest intensity time) and the optimum shooting point distance (the position of the authenticator 50 at the time of preliminary registration and the optimum shooting) Point (a distance between, for example, the center point of the optimum shooting area 18).
In the optimum shooting point table of FIG. 8, not only a set of two authentication machines but also an optimum shooting point distance corresponding to a set of radio wave intensity in one authentication machine is recorded.
In the example of FIG. 8, the moving distance is “1 m”, and the optimum shooting point distance is “1 m”.

Next, the passage time calculation unit 32 calculates a time difference between the reception time at the time of the preliminary registration and the highest intensity time, and calculates the moving speed of the user by dividing the moving distance by the time difference.
Then, the time T when the user passes the optimum photographing point is calculated by dividing the optimum photographing point distance by the moving speed of the user.

The video recording processing unit 27 of the entrance / exit management device 44 is photographed at the passage time T from the video recorded by the video recording device 4 when the passage time calculation unit 26 calculates the passage time T of the optimum photographing point. The captured video is taken out as a data file or video index, and the video at the passage time T is recorded in the video management DB 29.
When the video at the passage time T is recorded in the video management DB 29, the authentication time by the authentication processing unit 23 and the user ID are associated with the video and recorded in the video management DB 29.

  As apparent from the above, according to the third embodiment, after the preliminary registration unit 22 preliminarily registers a set such as a user ID and a reception time in the dynamic information cache table in the entrance management DB 28, the hands-free tag 13 The reception intensity of the radio wave transmitted from the authenticator 50 is monitored, and the user determines the optimum photographing point from the time when the reception intensity reaches a predetermined intensity and the reception time preliminarily registered by the preliminary registration unit 22. Since it is configured to calculate the passing time, in addition to the same effects as in the first embodiment, the user passes the optimum shooting point only by installing one authentication machine. There is an effect that the time can be calculated.

  In the present invention, within the scope of the invention, any combination of the embodiments, or any modification of any component in each embodiment, or omission of any component in each embodiment is possible. .

  1 surveillance camera, 2 rooms, 3 door with electric lock, 4 surveillance video recording device, 11, 12, 50 authentication machine, 13 hands-free tag (ID transmitter), 14 hands-free receiver (ID receiving means), 14a area, 15, 43, 44 Entrance / exit management device, 16 integrated monitoring device, 17 network, 21 ID acquisition unit (ID receiving unit), 22 preliminary registration unit (preliminary registration unit), 23 authentication processing unit (authentication unit), 24 preliminary registration Confirmation unit (registration confirmation unit), 25 key control unit (key control unit), 26 passage time calculation unit (passage time calculation unit), 27 video recording processing unit (video recording unit), 28 entrance management DB, 29 video management DB , 30 unauthorized recording processing unit (authenticated unauthorized recording means, passage route unauthorized recording means), 41 flapper gate, 42 high-definition monitoring camera, 31 preliminary registration confirmation unit, 2 passage time calculating section (passage time calculating means).

Claims (10)

  A plurality of authentication devices installed in each of a plurality of small areas in the monitoring area and having a radio wave arrival range indicating the authentication device ID in the small area, and the user selects any one of the plurality of small areas The ID transmitter owned by the user receives the radio wave transmitted from the authentication machine installed in the small area, and identifies the authentication machine ID indicated by the radio wave and the user. When the radio wave indicating the user ID is transmitted, the ID receiving means for receiving the radio wave indicating the authentication machine ID and the user ID, the authentication machine ID and the user ID indicated by the radio wave received by the ID reception means, and the reception time When a radio wave indicating another authentication machine ID and user ID different from the authentication machine ID is received by the preliminary registration means for pre-registering the set and the ID reception means, the associated authentication machine An authentication machine ID of an authentication machine associated with the authentication machine indicated by the other authentication machine ID is obtained by referring to the association table indicating the combination, and the pair of the authentication machine ID and the user ID is the preliminary registration means. The registration confirmation means for confirming whether or not it is pre-registered, and if the pre-registration is confirmed by the registration confirmation means, the reception time of the pre-registered authentication machine ID and the other authentication machine Calculated by the passage time calculation means among the passage time calculation means for calculating the time when the user passes the predetermined point from the reception time of the ID and the video of the monitoring camera photographing the monitoring area. A video surveillance device comprising video recording means for recording video taken at a given time. Whether a user ID that matches the user ID received together with another authentication machine ID by the ID receiving means is registered in the authentication table in which the user ID for identifying the user permitted to pass is registered Authentication means for confirming whether or not,
A key control means for unlocking the door key when the authentication means confirms that the matching user ID is registered and the registration confirmation means confirms that the user ID is pre-registered. The video monitoring apparatus according to claim 1, wherein:   When the video recording means records the video taken at the time calculated by the passage time calculating means, the video recording means confirms that the matching user ID is registered by the authentication means and the user ID to the video. The video surveillance apparatus according to claim 2, wherein the video surveillance apparatus stores the data in association with each other.   The video recording means records video of a monitoring camera corresponding to a set of associated authentication machines when a plurality of monitoring cameras are installed. The video surveillance device according to any one of claims.   If it is not confirmed by the registration confirmation means that the pre-registration is confirmed, the fact that the user's passage route is invalid and the video of the monitoring camera before the predetermined time from the reception time of another authentication machine ID is recorded 5. The video monitoring apparatus according to claim 1, further comprising a path fraud recording unit.   If it is not confirmed by the authentication means that the matching user ID is registered, an authentication error is recorded, and at the same time, a video of the monitoring camera recorded a predetermined time before the reception time of another authentication machine ID is recorded. 6. The video monitoring apparatus according to claim 2, further comprising a recording unit. If the authentication machine is installed at a position corresponding to multiple entry gates installed in parallel,
The video recording means identifies the authentication machine having the highest radio wave reception intensity at the ID transmitter from among the plurality of authentication machines, and from the video taken at the time calculated by the passage time calculation means, The video monitoring apparatus according to claim 1, wherein a video of an area corresponding to the authentication machine is cut out and the video is recorded.   An authenticator whose radio wave reach is in the monitoring area, and an ID transmitter possessed by the user receives the radio wave transmitted from the authenticator when the user enters the monitoring area, When a radio wave indicating a user ID for identifying the user is transmitted, an ID receiving unit that receives the radio wave indicating the user ID and a set of a user ID and a reception time indicated by the radio wave received by the ID receiving unit are preliminarily registered. After the preliminary registration unit and the preliminary registration unit preliminarily register a set of user ID and reception time, the reception intensity of the radio wave transmitted from the authenticator in the ID transmitter is monitored, and the reception intensity is a predetermined intensity. And a reception time calculation means for calculating the time when the user passes a predetermined point from the time when the user arrives at the reception time and the monitoring time when the monitoring area is photographed. Of the image of a camera, a video surveillance system and a video recording means for recording the image captured at the time calculated by the passage time calculating means.   A monitoring camera that captures a monitoring area, a plurality of authentication devices that are installed in each of a plurality of small areas in the monitoring area, and a radio wave arrival range indicating the authentication device ID is in the small area, and a user When a radio wave transmitted from an authenticator installed in the small area is received by entering any small area of the small area, an authentication machine ID indicated by the radio wave and a user ID for identifying the user are obtained. An ID transmitter for transmitting the indicated radio wave, an ID receiving means for receiving the radio wave transmitted from the ID transmitter, and a set of the authentication machine ID and user ID indicated by the radio wave received by the ID receiving means and the reception time. When a pre-registration means for pre-registration and a radio wave indicating another authentication machine ID and user ID different from the authentication machine ID are received by the ID reception means, a set of associated authentication machines The authentication table ID of the authentication device associated with the authentication device indicated by the other authentication device ID is acquired, and the pair of the authentication device ID and the user ID is the preliminary registration means. The registration confirmation means for confirming whether or not it is pre-registered, and if the pre-registration is confirmed by the registration confirmation means, the reception time of the pre-registered authentication machine ID and the other authentication machine Photographed at the time calculated by the passage time calculation means among the passage time calculation means for calculating the time when the user passes the predetermined point from the reception time of the ID, and the video photographed by the monitoring camera Video monitoring system comprising video recording means for recording the recorded video.   A surveillance camera that captures the surveillance area, an authentication device whose radio wave arrival range is within the surveillance area, and a user who enters the surveillance area and receives a radio wave transmitted from the authentication device, identifies the user An ID transmitter for transmitting a radio wave indicating a user ID to be received, an ID receiving means for receiving a radio wave transmitted from the ID transmitter, and a set of a user ID and a reception time indicated by the radio wave received by the ID receiving means. Preliminary registration means for preliminarily registering, and after the pair of user ID and reception time is preliminarily registered by the preliminary registration means, the reception intensity of the radio wave transmitted from the authenticator in the ID transmitter is monitored, and the reception intensity Passing time calculating means for calculating the time when the user passes a predetermined point from the time when the user reaches a predetermined intensity and the receiving time, and the monitoring camera Of more captured images, video monitoring system including a video recording means for recording the image captured at the time calculated by the passage time calculating means.

Images