JP2012039531A - Video monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extract video portions that need examination on the basis of extraction conditions defined according to the application of a monitoring target, thereby reliably recording video portions that require examination by a watchman and reducing the quantity of such video portions to reduce the time taken for examination by the watchman.SOLUTION: A video monitoring system comprises: a monitoring camera 21 which takes an image of a monitoring target 10; and examination-needing video extraction means which extracts video portions that require examination from the image taken by the monitoring camera 21, on the basis of extraction conditions defined according to the application of the monitoring target 10.

Description

  The present invention relates to a video surveillance system.

  Conventionally, surveillance cameras have been installed in facilities such as convenience stores, stores such as supermarkets, financial institutions such as banks, post offices, credit unions, entrance halls, elevators, etc., and the captured images are monitored in real time. A video monitoring system for monitoring the movement of a person using the facility by recording the information is provided.

  For example, in response to a signal from a monitoring sensor composed of an infrared sensor, a temperature sensor, etc. that detects the occurrence of an event such as an intrusion into a facility, a video recording device that records a video output from the monitoring camera, and the signal from the monitoring sensor The video recording device comprises a control means for starting video recording, and a video information management device for managing video recording information of the video recording device, and the recorded video of the intruder can be reproduced in the order of recording, There has been proposed a video surveillance system capable of confirming video in a specific time zone in a short time (see, for example, Patent Document 1).

  In addition, a video monitoring system has been proposed that can distribute video to a plurality of receiving devices using a network camera connected to a network such as a communication network (for example, see Patent Document 2).

JP 2006-197223 A JP 2007-142861 A

  However, in the conventional video monitoring system, the detection accuracy of the monitoring sensor varies depending on the environment and there are many false detections, and the occurrence of an event cannot be detected with high accuracy. Moreover, since frequent maintenance is required to maintain the detection accuracy of the monitoring sensor, the maintenance cost is increased. Furthermore, since the amount of video distributed and stored via the network becomes enormous, it takes a long time to confirm the details of the video.

  The present invention solves the problems of the conventional video surveillance system and extracts a confirmation required video based on the extraction criteria set according to the operation of the monitoring target, and requires confirmation by a supervisor. An object of the present invention is to provide a video monitoring system capable of reliably recording video, reducing the amount of video to be confirmed, and shortening confirmation time by a supervisor.

  Therefore, in the video monitoring system of the present invention, confirmation is required from the video captured by the monitoring camera based on the monitoring camera that captures the video to be monitored and the extraction criteria set according to the operation of the monitoring target. And a confirmation video extraction means for extracting video.

  In another video surveillance system of the present invention, the video surveillance system further comprises video recording means for recording video taken by the surveillance camera, and required video recording means for recording the required video. The extracting means extracts the required video from the video recorded in the video recording means, and causes the extracted required video to be recorded in the required video recording means.

  In still another video monitoring system of the present invention, the video monitoring system further includes display means connected to the required video recording means, and the display means displays the required video recorded in the required video recording means. Display so as to be visible.

  In still another video monitoring system according to the present invention, the required video extraction means and the required video recording means are connected via a network, and the required video extraction means extracts the required video to be extracted. It transmits to the said confirmation required video recording means via a network.

  In still another video monitoring system of the present invention, the extraction criterion further includes the type of the monitoring target, shooting time information of the monitoring target video, the number of persons included in the monitoring target video, or the It is set according to the time that the person stayed in the monitoring target.

  According to the present invention, in the video surveillance system, the confirmation-needed video is extracted based on the extraction criterion set according to the operation of the monitoring target. As a result, it is possible to reliably record the video that needs to be confirmed by the supervisor, reduce the amount of the video that needs confirmation, and shorten the video confirmation time by the supervisor.

It is a figure which shows the structure of the video surveillance system in the 1st Embodiment of this invention. It is a figure which shows the example of the extraction reference | standard of the confirmation required video in the 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the monitoring video confirmation efficiency improvement means of the video monitoring system in the 1st Embodiment of this invention. It is a figure which shows the structure of the video surveillance system in the 2nd Embodiment of this invention. It is a flowchart which shows the operation | movement of the monitoring video confirmation efficiency improvement means of the video monitoring system in the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a video surveillance system according to the first embodiment of the present invention.

  In the figure, 10 is a monitoring target of the video monitoring system in the present embodiment, 20 is a video monitoring device included in the video monitoring system in the present embodiment, and 21 is a monitoring included in the video monitoring system in the present embodiment. It is a camera and is connected to the video monitoring device 20.

  The monitoring object 10 is, for example, a bank, a post office, a bank of a financial institution such as a credit union, a sales office such as a branch, a convenience store, a supermarket, a department store, a home center, a store of a commercial facility such as a shopping center, a railway station, Transportation facilities such as railway vehicles, underpasses, buses, airfields, entertainment facilities such as theaters, theme parks, amusement parks, accommodation facilities such as hotels and inns, dining facilities such as restaurants and restaurants, public facilities such as schools and government offices, and individuals Although it is a housing facility such as a house or an apartment house, a hall in a general building, an interior of a building such as an elevator, a construction site, a work facility such as a factory, etc., it may be any facility or place.

  The monitoring target 10 may be the entire facility such as a building, indoor or outdoor, may be one or a plurality of floors indoors, It may be a plurality of rooms, or a part of the floor or the room. For example, the monitoring target 10 may be the whole in one branch of a financial institution, the whole floor in the branch, or an ATM (Automatic Teller Machine: It may be only around the automated teller machine.

  In the example shown in the figure, there is only one monitoring camera 21, but there may be a plurality of cameras, or any number. The monitoring camera 21 includes imaging means such as a CCD (Charge Coupled Device), a CMOS (Complementary Metal Oxide Semiconductor), and the like. As long as it is to be transmitted to the video surveillance device 20, it may be an industrial surveillance camera, a broadcast station surveillance camera, or a home video camera. May be. Further, the monitoring camera 21 may include a focus variable mechanism such as a zoom lens and can change the shooting mode from close-up to telephoto, that is, a camera capable of zooming operation. Further, the surveillance camera 21 may be mounted so as to be pivotable up and down or left and right, and capable of moving the photographing range up and down or left and right, that is, capable of tilting operation or panning operation. . In this case, all the operations of the monitoring camera 21 including the zooming operation, the tilting operation, and the panning operation are controlled by the video monitoring device 20.

  The video monitoring device 20 includes arithmetic means such as CPU and MPU, semiconductor memory, magnetic disk, magnetic tape, magnetic drum, flash memory, optical disk, memory card and other storage means, keyboard and mouse input means, communication means, etc. Which is operated by an administrator of the video surveillance system. The manager is, for example, a person in charge of a management company, a security company, or the like that performs maintenance, management, security, or the like of a building or facility that is the monitoring target 10, and is responsible for monitoring the monitoring target 10. In the example shown in the figure, the video monitoring device 20 is disposed in the monitoring target 10, but is not necessarily disposed in the monitoring target 10, for example, outside the monitoring target 10, for example, It may be arranged in a monitoring room of a manager room, a security guard room, a management company, a security company, or the like.

  The video monitoring device 20 includes a camera drive 22 as monitoring camera control means, a video recording device 23 as video recording means, and a display 24 as display means. The camera drive 22 controls all the operations of the surveillance camera 21 such as the start of shooting, the stop of shooting, the zooming operation, the tilting operation, and the panning operation.

  The video recording device 23 is a kind of DVR (Digital Video Recorder) and includes storage means such as a semiconductor memory and a magnetic disk. The video drive 23 captures the video of the monitoring target 10 taken by the monitoring camera 21. Is recorded and stored in the storage means as video data. The video recording device 23 can be connected to an external recording device 26 composed of an HDD (Hard Disk Drive) or the like as backup storage means for recording video data as required.

  Further, the display 24 includes a CRT, a liquid crystal display, a plasma display, and the like, and displays the video of the monitoring target 10 recorded by the video recording device 23. The administrator of the video monitoring system visually confirms the video of the monitoring target 10 displayed on the display 24.

  In addition, the video recording device 23 includes monitoring video confirmation efficiency improving means 25 as required confirmation video extracting means. The monitoring video check efficiency improving means 25 searches the video data recorded in the storage means of the video recording device 23, and extracts the required video based on the extraction criteria set in advance according to the operation of the monitoring target 10. To do. Here, the confirmation required image is an image that needs to be visually confirmed by the administrator of the image monitoring system among the images of the monitoring target 10 taken by the monitoring camera 21. For example, a suspicious person It is an image that is considered to have a high probability of being covered. The extraction criteria can be set for each monitoring camera 21, and the monitoring video checking efficiency improving means 25 searches the video data of each monitoring camera 21 based on the extraction criteria set for each monitoring camera 21, and requires Extract the confirmation video.

  Note that the monitoring video confirmation efficiency improving means 25 is specifically a functional means that exhibits a function realized by application software installed in the video recording device 23, and is periodically activated by task control such as batch. Works.

  Next, the operation of the video monitoring system having the above configuration will be described. Here, only the operation of the monitoring video check efficiency improving means 25 will be described.

  FIG. 2 is a diagram showing an example of extraction criteria for a required video in the first embodiment of the present invention, and FIG. 3 is an operation of the monitoring video verification efficiency means of the video monitoring system in the first embodiment of the present invention. It is a flowchart which shows.

  It should be noted that the video surveillance system according to the present embodiment is generally not operated by employees of the building or facility as the monitoring target 10 except when the evidence video is presented to the police, the audit staff of the affiliated company, or the like. It is thought that there is no.

  Therefore, it is assumed that the monitoring video check efficiency improving unit 25 is periodically activated by task control such as batch every night.

  First, when the monitoring video check efficiency improving means 25 is activated, it searches the video data in the video recording device 23, that is, the video data recorded in the storage means of the video recording device 23 for each monitoring camera 21, and confirmation is required. Extract video. In this case, the storage means of the video recording device 23 functions as video recording means for recording the video taken by the monitoring camera 21.

  Note that the confirmation video is a video that needs to be visually confirmed by an administrator of the video monitoring system, as described above, and is set for each monitoring camera 21 according to the operation of the monitoring target 10. Extracted based on extraction criteria.

  In the present embodiment, the extraction criterion is set according to the operation of the monitoring target 10. That is, the type of the monitoring target 10, the shooting time information of the video of the monitoring target 10 (date of shooting, day of the week, time zone, time, etc.), the number of persons included in the video of the monitoring target 10, and the person monitoring It shall be set according to the time etc. which stayed in the object 10. Specifically, it is set as shown in FIG. In FIG. 2, the staying time is described as several minutes and 30 minutes to 1 hour, but in this embodiment, several minutes is set as 3 minutes or more, and 30 minutes to 1 hour is set as 30 minutes or more. It is assumed that it is set.

  For example, when the type of the monitoring target 10 is an office of a company or the like, that is, an office, when the day of shooting is a holiday and the time zone is early morning or midnight, the person included in the video of the monitoring target 10 If the number is one and the time that the person has stayed in the monitoring target 10 is 3 minutes or more, the corresponding video is set to be extracted as the confirmation required video.

  In addition, when the type of the monitoring target 10 is a safe or an ATM around a financial institution's branch, the video of the monitoring target 10 is included when the photographed time zone is other than the time zone where money is collected or delivered or stored. If the number of persons is one and the person has stayed in the monitoring target 10 for 3 minutes or longer, the corresponding video is set to be extracted as a confirmation required video.

  Further, when the type of the monitoring target 10 is a meeting room in a financial institution's sales office, when the filmed time zone is during business hours, the number of persons included in the video of the monitoring target 10 is two. If the time during which the person stays in the monitoring object 10 is 30 minutes or more, the corresponding video is set to be extracted as the confirmation required video. In this case, if the number of persons is three or more, it is not extracted as a confirmation required video.

  Here, as a method of determining the type of the monitoring target 10 from the video data, for example, the type of the monitoring target 10 is identified in advance and the monitoring target 10 is associated with the monitoring target 21 and the type of the monitoring target 10 is photographed. What is necessary is just to judge whether it is the monitoring camera 21 which was.

  The method for determining the number of persons included in the video of the monitoring target 10 may be performed using a conventionally known technique such as counting the number of persons by detecting a face, and therefore will not be described in detail. .

  In addition, as a method of counting the time during which the person stays in the monitoring target 10 in the present embodiment, the type of the monitoring target 10 set as the extraction reference, the shooting time information of the monitoring target 10, and the monitoring target 10 When the monitoring video checking efficiency improving unit 25 determines that the number of persons included in the video corresponds, the time during which the person stays in the monitoring target 10 is monitored using a timer (not shown), and the staying time is extracted. When the time set by the reference is exceeded, it is determined that the corresponding video should be extracted as the confirmation required video.

  The extraction of the confirmation required video is monitored when it corresponds to the type of the monitoring target 10 set as the extraction criterion from the captured video data of the monitoring target, the shooting time information of the monitoring target 10, and the number of persons included in the video of the monitoring target 10. It is preferable to cut out the video data from the time point when the video checking efficiency improvement means 25 determines until the stay time set as the extraction reference is exceeded, but for example, the time set as the extraction reference is exceeded The video data before and after the time point may be cut out and extracted for a predetermined time.

  Subsequently, the monitoring video check efficiency improving unit 25 determines whether or not a check required video exists, that is, whether or not there is a check required video. Then, when a confirmation required video exists, the monitoring video confirmation efficiency improving unit 25 records a log of “There is a required confirmation video on the day of the month × day” in the video recording device 23. In other words, the date and time when the confirmation required video is recorded is recorded in the video recording device 23 as a log.

  Subsequently, the monitoring video check efficiency improving unit 25 records (copies) the check required video in the external recording device 26 and ends the processing. In this case, the monitoring video confirmation efficiency improving means 25 functions as a confirmation video recording means for recording a confirmation required video. Note that it is determined whether or not there is a confirmation required video, and if there is no confirmation required video, the processing is ended as it is.

Next, a flowchart will be described.
Step S1: The video data in the video recording device 23 is searched for each monitoring camera 21.
Step S2: It is determined whether or not there is a confirmation required video. If a confirmation required video exists, the process proceeds to step S3. If a confirmation required video does not exist, the process ends.
Step S3 A log of “There is a confirmation video required for XX month × day” is recorded in the video recording device 23.
Step S4: Recording (copying) the confirmation required video on the external recording device 26, and the process is terminated.

  As described above, in the present embodiment, the monitoring video check efficiency improving unit 25 extracts the video to be checked based on the extraction criteria set in advance according to the operation of the monitoring target 10.

  As a result, a video that needs to be confirmed by the manager of the video surveillance system, which is a monitor, is reliably recorded. In addition, the amount of video to be checked by the monitor can be reduced, and the check time by the monitor can be shortened.

  The extracted confirmation required video is recorded in the external recording device 26.

  Thereby, even if the video data of the monitoring camera 21 recorded in the storage means of the video recording device 23 has been deleted due to the passage of days or due to the storage capacity of the storage means, the confirmation required video Is recorded and stored in the external recording device 26. Therefore, if necessary, a confirmation video image can be confirmed at any time, and can also be presented as evidence of criminal investigation.

  Next, a second embodiment of the present invention will be described. In addition, about the thing which has the same structure as 1st Embodiment, the description is abbreviate | omitted by providing the same code | symbol. The description of the same operation and the same effect as those of the first embodiment is also omitted.

  FIG. 4 is a diagram showing a configuration of a video surveillance system according to the second embodiment of the present invention.

  The video monitoring system in the present embodiment includes a monitoring center system 30 as a computer system disposed in a monitoring center that is separated from a building or facility as the monitoring target 10. The monitoring center system 30 includes arithmetic means such as CPU and MPU, semiconductor memory, magnetic disk, magnetic tape, magnetic drum, flash memory, optical disk, memory card and other storage means, keyboard and mouse input means, communication means, etc. Video monitoring server 31 as a computer, CPU, MPU and other computing means, semiconductor memory, magnetic disk, magnetic tape, magnetic drum, flash memory, optical disk, memory card and other storage means, keyboard, mouse and other input means And a video monitoring terminal 33 as a computer including display means such as a CRT, a liquid crystal display, a plasma display, and communication means.

  In the example shown in the figure, the video monitoring server 31 and the video monitoring terminal 33 are provided one by one, but may be a plurality or any number. The video monitoring server 31 and the video monitoring terminal 33 are connected to each other.

  The monitoring center system 30 is communicably connected to the video monitoring apparatus 20 via the network 40. The network 40 may be any network such as a wireless or wired dedicated communication network or public communication network, a LAN (Local Area Network), a WAN (Wide Area Network), or the like. In the example shown in the figure, the number of video monitoring devices 20 connected to the monitoring center system 30 is one, but normally there are a plurality of video monitoring devices 20 and any number may be used. As a result, it is possible to efficiently confirm the confirmation required videos of the plurality of monitoring targets 10 by the single monitoring center system 30.

  The video monitoring server 31 includes a video storage database 32 as storage means for storing and storing the confirmation required video acquired from the video recording device 23 of the video monitoring device 20. Then, the confirmation required video extracted by the monitoring image confirmation efficiency improving means 25 of each image monitoring device 20 is transmitted to the monitoring center system 30 via the network 40 and stored and accumulated in the image accumulation database 32.

  Further, the administrator of the video monitoring system assigned to the monitoring center operates the video monitoring terminal 33 to display the confirmation required video stored and stored in the video storage database 32 on the display means, and can confirm it visually. it can. In this way, it is possible to efficiently confirm the confirmation required videos of the plurality of monitoring objects 10 by the single monitoring center system 30.

  In the present embodiment, the external recording device 26 is not connected to the video recording device 23. That is, the external recording device 26 is omitted.

  Since other configurations are the same as those in the first embodiment, description thereof is omitted.

  Next, the operation of the video monitoring system in this embodiment will be described. Here, only the operation of the monitoring video check efficiency improving means 25 will be described.

  FIG. 5 is a flowchart showing the operation of the monitoring video checking efficiency improving means of the video monitoring system according to the second embodiment of the present invention.

  First, when the monitoring video check efficiency improving means 25 is activated, it searches the video data in the video recording device 23, that is, the video data recorded in the storage means of the video recording device 23 for each monitoring camera 21, and confirmation is required. Extract video. In this case, the storage means of the video recording device 23 functions as video recording means for recording the video taken by the monitoring camera 21.

  Subsequently, the monitoring video check efficiency improving unit 25 determines whether or not a check required video exists, that is, whether or not there is a check required video. Then, when a confirmation required video exists, the monitoring video confirmation efficiency improving unit 25 records a log of “There is a required confirmation video on the day of the month × day” in the video recording device 23. In other words, the date and time when the confirmation required video is recorded is recorded in the video recording device 23 as a log.

  Subsequently, the monitoring video confirmation efficiency improving unit 25 transmits the confirmation required video to the video monitoring server 31 of the monitoring center system 30. In other words, a confirmation required video is transmitted from the video recording device 23 to the video monitoring server 31. Thereby, the confirmation required video is stored and accumulated in the video accumulation database 32. In this case, the video storage database 32 functions as a confirmation video recording means for recording a confirmation required video.

  Subsequently, the monitoring video check efficiency improving unit 25 records a log of “There is a check video required on the day of the month × day” in the video monitoring server 31 and ends the processing. That is, the date and time when the confirmation video required is recorded as a log in the video monitoring server 31, and the process ends. Note that it is determined whether or not there is a confirmation required video, and if there is no confirmation required video, the processing is ended as it is.

Next, a flowchart will be described.
Step S11: The video data in the video recording device 23 is searched for each monitoring camera 21.
Step S12: It is determined whether or not there is a confirmation required video. If a confirmation required video exists, the process proceeds to step S13, and if a confirmation required video does not exist, the process ends.
Step S13 A log of “There is a confirmation video required for XX month × day” is recorded in the video recording device 23.
Step S <b> 14 The confirmation required video is transmitted from the video recording device 23 to the video monitoring server 31.
Step S15 A log of “There is a confirmation video required on the day of the month × day” is recorded in the video monitoring server 31, and the process ends.

  Thus, in the present embodiment, the confirmation required video extracted by the monitoring image confirmation efficiency improving means 25 of each image recording device 23 is transmitted to the monitoring center system 30 and stored and accumulated in the image accumulation database 32. As a result, it is possible to collectively confirm and manage the confirmation required videos of the plurality of monitoring targets 10 at the monitoring center.

  In addition, since not all the videos recorded in the video recording device 23 but only the required video extracted by the monitoring video check efficiency improving means 25 is transmitted to the monitoring center system 30 via the network 40, the network 40 performs processing. The amount of communication data to be reduced can be reduced, and the line efficiency of the network 40 can be improved. Similarly, the storage amount of the video accumulation database 32 can be suppressed.

  The other effects are the same as those in the first embodiment, and a description thereof will be omitted.

  In the first embodiment, it is possible to more surely promote confirmation of required video, presentation of evidence, and the like by a single video monitoring system in a building or facility. The second embodiment is useful for a video monitoring system configured to distribute and store video via the network 40. In addition, since it is possible to extract a video to be confirmed under conditions that are specific to the operation of a financial institution or the like, it is possible to expect an improvement in audit work efficiency.

  In each of the above embodiments, the type of the monitoring target 10 is set as the extraction criterion. For example, a model number that identifies the monitoring camera 21 that is capturing the monitoring target 10 is set as the type of the monitoring target 10. Instead, it may be set as an extraction criterion, or a plurality of pieces of shooting time information, the number of persons, and a stay time may be set for one monitoring target 10.

  The present invention is not limited to the above-described embodiment, and various modifications can be made based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

  The present invention can be applied to a video surveillance system.

DESCRIPTION OF SYMBOLS 10 Monitoring object 21 Monitoring camera 23 Video recording apparatus 24 Display 25 Monitoring video confirmation efficiency means 32 Video storage database 40 Network

Claims (5)

(A) a surveillance camera that captures video to be monitored;
(B) A video monitoring system comprising: a required video extraction unit that extracts a required video from a video captured by the monitoring camera based on an extraction criterion set according to the operation of the monitoring target. . Video recording means for recording video taken by the surveillance camera, and confirmation required video recording means for recording the confirmation required video;
2. The video monitoring system according to claim 1, wherein the required video extraction unit extracts the required video from the video recorded in the video recording unit and records the extracted required video in the required video recording unit. . It further comprises display means connected to the confirmation video recording means required,
The video monitoring system according to claim 2, wherein the display means displays the confirmation required video recorded in the confirmation required video recording means so as to be visible. The required video extraction means and the required video recording means are connected via a network,
The video monitoring system according to claim 2 or 3, wherein the confirmation-needed video extracting unit transmits the extracted necessary-confirmed video to the confirmation-needed video recording unit via the network.   The extraction criterion depends on the type of the monitoring target, the shooting time information of the monitoring target video, the number of persons included in the monitoring target video, or the time that the person stayed in the monitoring target. The video surveillance system according to any one of claims 1 to 4, which is set.

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