JP2019087936A - Video monitoring system and video monitoring device - Google Patents

Abstract

To make it possible to quickly and accurately track an unauthorized intruder to a detection area for detecting an intruder in a monitored site.SOLUTION: By combining images of a monitored site using a plurality of monitoring camera images, a composite image is created. An area to be detected from a monitoring terminal is specified in the composite image. Then, whether an abnormality has occurred in a received detection area is determined on the basis of a video of the monitoring camera corresponding to the detection area. When it is determined that an abnormality has occurred in the detection area, a video of the monitoring camera used for the determination and a composite image created using the video of the monitoring camera used for the determination are output to the monitoring terminal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an image monitoring system and an image monitoring apparatus.

In general, in monitoring work for stations and buildings, resident guards are not placed at monitored sites on the side to be monitored in order to reduce labor costs, but surveillance cameras and storage devices for camera images are installed. .
And a supervisor performs monitoring work of a station building or a building using a terminal device such as a personal computer from a monitoring site which is a monitoring side such as a monitoring base of a station building or an office of a building owner.

  In addition, if an unauthorized person enters the monitored site, or if the intruder is staying in the entry prohibited area of the monitored site (for example, a parking violation area), the supervisor may be a security company or a patrol officer. Contact the person concerned and direct them to the monitored site.

  In Patent Document 1, a specific area and its surrounding area are photographed, and when there is an entry from the video data to the specific area or an approach person stays in the specific area, these are detected, and the terminal Discloses a system for displaying an alarm.

JP 2008-152736 A

  Generally, in a video surveillance system equipped with a remote monitoring function such as unauthorized entry at a monitored site or failure of the device, the height of the camera is at a position of 2 to 3 m. When checking the local abnormal condition from the image at the time of failure occurrence, there was a risk that it would be difficult to grasp the wide area condition.

In addition, since the height of the camera is 2 to 3 m, when setting the detection area for entry, the detection area is set for the image from diagonally above, so there is a problem that false detection is increased. The
The present invention has been made from the actual situation in the above-mentioned prior art, and its purpose is to grasp detailed information of abnormal situation regarding unauthorized entry to the monitored site, failure of equipment of the monitored site, etc. An object of the present invention is to provide an image monitoring system and an image monitoring apparatus capable of accurately setting a detection area.

In order to solve the above problems, a video surveillance system according to the present invention manages a plurality of surveillance cameras for capturing a site to be monitored, a monitoring terminal for displaying an image of the site to be monitored, and a process for processing an image captured by the monitoring camera. Includes server
Then, the management server outputs an image combining unit that combines the images of the monitored site using the images of the plurality of monitoring cameras to create a combined image, and the combined image created by the image combining unit to the monitoring terminal. A detection area reception unit that receives specification of an area to be detected is provided.

  Furthermore, the detection unit determines whether or not an abnormality has occurred in the received detection area based on the image of the monitoring camera corresponding to the detection area, and the detection unit uses the determination when it is determined that an abnormality has occurred in the detection area An output unit is provided that outputs a composite image created using the video of the monitoring camera and the video of the monitoring camera used for the determination to the monitoring terminal.

According to the video surveillance system of the present invention, it is possible to set a more accurate entry detection area by quickly tracking an unauthorized user and setting an entry prohibited area on a composite image.
Problems, configurations, and effects other than those described above will be apparent from the description of the embodiments below.

It is the schematic which showed the whole structure of the imaging | video monitoring system which concerns on the example of embodiment of this invention. It is an image figure of the camera installation position by the side of the to-be-monitored site of the imaging | video monitoring system which concerns on the example of embodiment of this invention. It is an image figure of the surveillance screen of the terminal unit by the side of the surveillance site of the video surveillance system concerning the example of an embodiment of the present invention. It is a figure which shows the hardware constitutions of the management server used for the video surveillance system which concerns on the example of embodiment of this invention, and the monitoring terminal used at a monitoring site. It is an image figure of the single image of the camera for several image composition, and the image which synthesize | combined it in the monitoring screen of the video surveillance system which concerns on the example of embodiment of this invention. It is an image figure of the screen which set the detection field and the entry prohibition field of the camera for crime prevention corresponding on the synthetic image which compounded the picture of the camera for image synthesis of the image surveillance system concerning the example of an embodiment of the present invention. It is a figure which shows the data structure of the detection area storage table in the database used for the imaging | video monitoring system which concerns on the example of embodiment of this invention. It is a figure which shows the data structure of the alert storage table in the database used for the imaging | video monitoring system which concerns on the example of embodiment of this invention. It is an image figure of the search screen of the terminal device by the side of the surveillance site in the image surveillance system concerning the example of an embodiment of the present invention. It is a sequence diagram which shows the flow of a process between the management server in the imaging | video monitoring system which concerns on the example of embodiment of this invention, and the recording device by the side of the to-be-monitored site.

  Hereinafter, an embodiment (hereinafter, referred to as “this example”) relating to a video surveillance system of the present invention will be described in detail with reference to the drawings.

<Overall Configuration of Video Surveillance System>
FIG. 1 is a schematic view showing an overall configuration of a video monitoring system for monitoring equipment such as a building according to the present embodiment. Moreover, FIG. 2 is a figure of the installation position of the cameras 4a-4c for image compositing and cameras 5a-5c for crime prevention which are installed in the building 1 which is a to-be-monitored site.

  As shown in FIG. 1, in the video surveillance system of this example, a plurality of monitored sites 1 to 1 n such as buildings are connected to a management server 7 that manages image data via a network line 2 forming a wide area network. It is connected. The image data collected by the management server 7 can be monitored at a plurality of monitoring sites 15 to 15 m. In the following description, the monitored sites 1 to 1 n are collectively referred to as the monitored site 1 (or the building 1), and the monitoring sites 15 to 15 m are collectively referred to as the monitoring site 15. n and m are natural numbers, and both may match or may be different.

  The monitored site 1 includes a communication device 3 for connecting to a network line 2, cameras 4a to 4c for image composition, cameras 5a to 5c for crime prevention, cameras 4a to 4c for image composition of these and a crime prevention 5a. A recording device 6 for recording the image data of ~ 5c is provided. In the following description, the image synthesizing cameras 4a to 4c and the security cameras 5a to 5c may be collectively referred to as surveillance cameras 4 and 5.

  As shown in FIG. 2, the cameras 4 a to 4 c for image composition are installed at a position such as the roof of the monitored site 1 such as a building, etc., in order to acquire wide area video. On the other hand, the security cameras 5a to 5c are installed at a height of 2 to 3 m, which is a position where people can see, in order to aim for detection of an intruder by aiming for a deterrent effect of crime.

  On the other hand, the management server 7 stores a communication unit 8 for connection to the network line 2, a control unit 9 for transmitting commands to each unit, information on the monitored site 1, and image data sent from the monitored site. A database 13 is provided. Further, the management server 7 includes an image combining unit 10, a regular collection unit 11, and an entry detection unit 12, and the control unit 9 includes an image combining unit 10, a regular collection unit 11, and the entry detection unit 12 in addition to the database 13. Control.

  The image combining unit 10 combines the image data from the image combining cameras 4a to 4c, and combines the image data from the security cameras 5a to 5c on the combined image. The regular collection unit 11 collects image data recorded in the recording device 6 of the monitored site 1 at predetermined periodic intervals. In addition, the entry detection unit 12 detects whether anyone has entered the entry prohibited area described later by the security cameras 5a to 5c. Here, as described later, since the entry detection unit 12 has a function of detecting whether any abnormality has occurred in addition to entry in the detection area of the monitored site 1 combined by the image combining unit 10, the entry detection unit 12 simply It can also be referred to as a detection unit.

  The database 13 includes storage areas such as a local information storage table 13a, an IP address storage table 13b, an image storage table 13c, a detection area storage table 13d, and a notification storage table 13e.

  The monitored site 1 receives images captured by the image combining cameras 4 a to 4 c or image data captured by the image combining cameras 4 a to 4 c and stored in the recording device 6 from the communication device 3 through the network line 2. It sends to the management server 7. The management server 7 receives image data from the monitored site 1 by the communication unit 8, processes it by the image combining unit 10 under the control of the control unit 9, and stores the processed image data in the image storage table 13 c of the database 13.

  Here, the communication unit 8 not only receives the image from the monitored site 1 but also has a function of transmitting the image synthesized by the image synthesizing unit 10 to the monitoring site 15. In other words, it has an input / output function of the management server 7. That is, the communication unit 8 has a function of an input unit for receiving an image from the monitoring cameras 4 and 5, and as described later, the monitoring cameras 4 and 5 used for determination when an abnormality occurs in the monitored site 1 And a function as an output unit that outputs a composite image created using the image of the surveillance camera to the surveillance site 16.

The on-site information storage table 13a stores, for example, on-site information such as the name of the building that is the monitored site 1, the name of the area where the building exists, and the location of the building. The IP address storage table 13 b stores an IP (Internet Protocol) address for identifying the monitored sites 1 to 1 n.
The image storage table 13c stores images captured by the image combining cameras 4a to 4c and the security cameras 5a to 5c of the monitored site 1 or images recorded in the recording device 6 of the monitored site 1 .

  Further, in the detection area storage table 13d, a detection area and a no entry area (described later with reference to FIG. 6) required to monitor predetermined waste dumps and parking lots are stored. The alert storage table 13d stores the time when someone enters the entry prohibited area, and the thumbnail images captured by the image combining cameras 4a to 4c and the security cameras 5a to 5c at that time.

On the other hand, the monitoring site 15 is provided with a monitoring terminal 16 which can be connected to the network line 2 such as a personal computer or a mobile phone terminal.
Here, the combined image generated by the image combining unit 10 of the management server 7 is sent to the monitoring terminal 16 of the monitoring site 15 by the control unit 9. Then, the monitoring terminal 16 designates detection areas (16Aa, 16Ab, 16Ac in FIG. 6 described later) for detecting an intruder on the transmitted composite image.

  The control unit 9 of the management server 7 receives the specification of the detection area by the monitoring terminal 16 and stores the detection area specified on the synthesized image synthesized by the image synthesis unit 10 in the detection area storage gable 13 d of the database 13. At the same time, the composite image in which the detection area is specified is stored in the image storage table 13c. A series of operations by the control unit 9 of the management server 7 function as a "detection area reception unit".

  FIG. 3 is a view showing a screen image of the monitoring terminal 16. In order to display the images from the plurality of image synthesizing cameras 4a to 4c of the monitored site 1 on one screen 16A, for example, as shown in FIG. 3A, the display screen of the monitoring terminal 16 includes four image display areas 16A1. To 16A4 are provided. The respective image display areas 16A1 to 16A4 are areas for displaying the images of the image combining cameras 4a to 4c which are single cameras. If there are three image combining cameras as in this example, images from the respective cameras are displayed on the display screens 16A1 to 16A3 and nothing is displayed on the display screen 16A4.

  Further, on the display screen 16A of the monitoring terminal 16, an image search button 16A5 and an image combining button 16A6 are provided. By clicking the image combining button 16A6, a combined image 16A7 is obtained in which the images 16A1 to 16A3 of the single camera (the combining cameras 4a to 4c) are combined. When the image combining screen 16A7 is displayed, as shown in the image combined screen of FIG. 3B, the image combining button 16A6 changes to the split screen button 16A6, and the split screen button 16A6 is split in this state when the split screen button 16A6 is pressed. It switches to the image display screens 16A1 to 16A4 of the single camera.

<Hardware Configuration of Monitored Site and Management Server of Video Monitoring System>
FIG. 4 is a diagram showing the hardware configuration of the management server 7 and the monitoring terminal 16 used in the video monitoring system of this example. FIG. 4A shows the hardware configuration of the management server 7, and FIG. 4B shows the hardware configuration of the monitoring terminal 16.

  As shown in FIG. 4A, the management server 7 includes a central processing unit (CPU) 21, a read only memory (ROM) 22, a random access memory (RAM) 23, and a non-volatile storage 24 connected to the bus 20. In addition, a communication unit I / F (interface) 25 for communicating with the outside is provided.

  The CPU 21 reads out from the ROM 21 a program code of software for realizing the function of each part of the management server 7 related to the video surveillance system of this example and executes it. Variables and the like generated in the middle of the arithmetic processing performed in the management server 7 are temporarily written in the RAM 22. The CPU 21 executes the program code stored in the ROM 22 to implement various functions in the management server 7.

  The non-volatile storage 24 corresponds to the database 13 of FIG. 1 and is configured of non-volatile memory such as a solid state drive (SSD). The ROM 22 and the non-volatile storage 24 semi-permanently store and store programs, data, etc. required for the CPU 21 to operate. In the non-volatile storage 24, storage areas of the on-site information storage table 13a, the IP address storage table 13b, the image storage table 13c, the detection area storage table 13d and the alert storage table 13e described in FIG. 1 are formed. ing.

  For example, a NIC (Network Interface Card) or the like is used as the communication unit I / F (interface) 25, and communication with the monitoring terminal 16 of the monitored site 1 and the monitoring site 15 is performed through the communication unit I / F 25. It will be.

FIG. 4B shows the hardware configuration of the monitoring terminal 16 provided at the monitoring site 15. The CPU 31, the ROM 32, and the RAM 33 illustrated in FIG. 4B are the same as the CPU 21, the ROM 22, and the RAM 23 illustrated in FIG. 4A, and therefore the description thereof is omitted here.
The non-volatile storage 34 of the monitoring terminal 16 shown in FIG. 4B has the same configuration as a non-volatile memory such as an SSD or the like included in a smartphone or the like. The non-volatile storage 34 has programs and data necessary for the CPU 31 to operate. Etc. are stored and stored semipermanently.

The communication unit I / F 35 is an interface for connecting the monitoring terminal 16 to the network line 2.
Further, the monitoring terminal 16 is provided with an input unit 36 and a display unit 37. The input unit 36 is, for example, an input icon used to perform an operation such as composition of a screen to be described later or switching of a display screen. The display unit 37 is also used to display image data or composite image data of a single camera, which will be described later with reference to FIGS. 5 and 6.

  In the video surveillance system of this embodiment, the composition processing of the images from all the surveillance cameras 4 and 5 is performed in the management server 7. On the other hand, the non-volatile storage 34 of the monitoring terminal 16 on the monitoring site 15 side includes the field information storage table 13a, the IP address storage table 13b, the image storage table 13c, the detection area storage table 13d and the notification storage table 13e. A storage area may be provided, and image processing similar to that of the management server 7 may be performed by the monitoring terminal 16. In this case, the monitoring terminal 16 functions as a video monitoring device.

<Description of the image of the monitoring screen of the video surveillance system>
FIG. 5 shows an outline of the display screen 16A of the monitoring terminal 16. An example (16A1 to 16A3) in which each image of the image combining cameras 4a to 4c as shown in FIG. 5A is displayed on the display screen 16A, and a composite image of these three images as shown in FIG. 5B (16A7) Is switched and displayed.

  In the example of FIG. 5, the images captured by the image combining cameras 4a to 4c are displayed in the screen display areas 16A1 to 16A3. When combining these images, in addition to the images displayed in the screen display areas 16A1 to 16A3, monitored sites such as buildings viewed from the sky stored in advance in the image storage table 13c of the management server 7 The image of 1 is also used. Therefore, in the display area 16A7 shown in FIG. 5B, a composite image of the images captured by the three image combining cameras 4a to 4c is displayed as if it were a single captured image captured from the sky.

  FIG. 6A is a diagram showing areas (detection areas) detected by the intrusion detection security cameras 5a to 5c by dotted lines 16Aa, 16Ab, and 16Ac. The detection areas 16Aa, 16Ab, and 16Ac shown in FIG. 6A do not necessarily correspond one-to-one with the areas photographed by the security cameras 5a to 5c. When the detection area is wide (for example, 16Aa), monitoring of one detection area is covered by a plurality of security cameras.

As types of monitoring by the security cameras 5a to 5c, for example, monitoring of illegal dumping to a waste dump, monitoring of a parking violation, monitoring of sitting in a specific place for a long time, and the like can be considered. In the example of the first monitoring of the garbage dump, it is conceivable to analyze the behavior of a person who discards the garbage in the garbage dump and detect and display an image by detecting illegal dumping by an approach person from the outside such as an apartment, for example.
It is also conceivable to photograph and display the number plate of a car parked in a specific area for a predetermined time or more according to the overhead image of the building 1 grade. Furthermore, it is also possible to detect a person staying in a specific time zone for a predetermined time or more, and to take a recorded image of sitting and sitting. In addition, it is appropriate to consider a standing person and a child in the recorded image of this sitting and excluding.

Further, as shown in FIG. 6B, by setting the entry prohibition area 16Ad on the image combining screen 16A7, it is registered in advance where in the monitoring areas 16Aa, 16Ab, 16Ac this entry prohibition area 16Ad corresponds. Can.
The entry prohibited area 16Ad may not necessarily be partitioned by one security camera. In such a case, surveillance may be performed by a plurality of security cameras, for example, two security cameras 5a and 5b. The entry prohibited area 16Ad shown in FIG. 6B happens to be within the range of the detection area 16Ab shown in FIG. 6A. In such a case, it is possible to monitor the entry prohibited area 16Ad with only one security camera 5b that mainly monitors the detection area 16Ab.

<Data structure of database used for video surveillance system>
FIG. 7 shows the data structure of the detection area storage table 13d of the database 13 of FIG. The detection area storage table 13d includes a detection area field 13d1, a video field 13d2, a security camera 1 field 13d3, a security camera 2 field 13d4, ... a security camera n field 13d5. The three security cameras 5a to 5c shown in FIG. 1 are merely examples of security camera 1 to security camera n, and here, a plurality (n) of security cameras are generalized. Indicates that it can be applied to

  A detection area field 13d1 indicates a detection area registered in advance, that is, an area detected by one or a plurality of security cameras 5a to 5c (in FIG. 7, security cameras 1 to n). For example, areas 16Aa, 16Ab, 16Ac in FIG. 6A correspond to detection areas A, B,.

  The video field 13d2 is an area in which a composite image of the image combining cameras 4a to 4c is stored. In FIG. 7, in the entry prohibition area 16Ad, a composite image A common to both the detection area A on the first line and the detection area B on the second line is stored. That is, this composite image A corresponds to the composite image 16A7 shown in FIG. 5B, which means that the building which is the monitored site 1 to be monitored is common.

  In the security camera 1 field 13d3, an image captured by the first security camera 1 (in FIG. 1, the security camera 5a) is stored as a security camera 1a. Further, in the security camera 2 field 13 d 4, an image captured by the second security camera 2 (in FIG. 1, the security camera 5 b) is stored as the security camera 1 b. Similarly, in the security camera n field 13d5, an image captured by the nth security camera n is stored.

  Here, monitoring of the detection area A in the first line of FIG. 7 indicates that the image can be covered only by the image (the security camera 1a) captured by the security camera 1. However, in order to monitor the detection area B in the second line of FIG. 7, two images, an image taken by the crime prevention camera 1 (the crime prevention camera 1 a) and an image taken by the crime prevention camera 2 (the crime prevention camera 1 b) It means that an image is required.

  FIG. 8 shows the data structure of the alert storage table 13e of the database 13 of FIG. The alert storage table 13e has an occurrence date field 13e1, a detection area field 13e2, a composite image thumbnail field 13e3, and a security camera thumbnail field 13e4.

  The date and time when someone entered the entry prohibited area 16Ad is stored in the occurrence date and time field 13e1. For example, when the entry detection unit 12 of the management server 7 shown in FIG. 1 detects that someone has entered the entry prohibited area 16Ad shown in FIG. 5B, the occurrence date of entry is stored in the occurrence date field 13ed1. In the example (13e5) of the first line in FIG. 8, the number “2017/07/13 10:30:20” is stored in the occurrence date field 13ed1. This indicates the fact that someone entered the entry prohibited area 16Ad shown in FIG. 6B at 10:30 20 seconds on July 13, 2017.

  Similarly, an example (13e6) on the second line in FIG. 8 indicates that someone entered the entry prohibited area 16Ad at 11:30 25 on July 203, 2017. The detection area field 13e2 of the first line (13e5) and the second line (13e6) in FIG. 8 is both a detection area A, and that somebody has entered the same detection area A of the building 1 It shows. The detection area field 13e2 of FIG. 8 is the same as the detection area field 13d1 of FIG.

  In the composite image thumbnail field 13e3, for example, as shown in the first line (13e5), a thumbnail image of the composite image A corresponding to the detection area A of the detection area field 13e2 is stored. Here, the thumbnail image is an image obtained by reducing the composite image A (the composite image 16A7 shown in FIG. 5) as shown by 16AB8 in FIG. 9, and the composite image thumbnail field 13e3 is specified by the image composition camera 4a-4c. A plurality of composite images taken at intervals of time are stored as thumbnails. Similarly, in the security camera thumbnail field 13e4, a plurality of images (security camera 1a) captured by the security camera 5a, which are one of the security cameras 5a to 5c, are stored as thumbnail images. Ru.

  In the last line (13e7) of FIG. 8, a person enters a detection area B different from the detection area A in the same building 1 at 11:30:25 on July 23, 2017. And, it is shown that the image security camera 1c photographed by the security camera 5c is stored as a thumbnail image.

FIG. 9 shows a data search screen 16AB displayed when the image search button 16A5 of FIG. 3 is pressed. The data search screen 16AB shown in FIG. 9 is provided with a real time display button 16AB1. When the real time display button 16AB1 is pressed, the screen changes to a screen of a composite image shown in FIG. 5B.
In addition, on the data search screen 16AB, a period search button 16AB2 for displaying data collected by the scheduled collection unit 11 as a search result, buttons 16AB4 and 16AB5 for inputting the start date and time of the period of collected data, and the end date and time. Is provided. Furthermore, an entry detection search button 16AB3 is provided for switching to a screen displayed when entry detection unit 12 detects entry.

  In addition to the area 16AB8 for displaying the search results, the data search screen 16AB displays whether to display the thumbnails of the composite screen 16A7 shown in FIG. 5B or to display the thumbnails of the cameras 5a to 5c for crime prevention. A display switching button 16AB6 is provided. Further, a search button 16AB7 for executing a search of these thumbnail images is provided.

<Description of Control Operation of Video Surveillance System>
FIG. 10 is a flowchart showing the procedure of operation processing in each part of the video surveillance system of this example.
As shown in FIG. 10, first, it is determined whether one hour has passed since the time when the regular collection unit 11 in the control unit 9 of the management server 7 performed the previous regular collection (step SA1). When it is determined in step SA1 that one hour has passed (Yes in step SA1), the scheduled collection unit 11 of the management server 7 records the recording device 6 of the building 1 which is a monitored site via the communication unit 8. Request image data (step SA2).

In response to this, the recording device 6 of the building 1 receives the request for the image (step SB1), and then acquires the on-site image (step SB2). Then, the acquired local image is transmitted from the communication device 3 to the management server 7 via the network 4 (step SB3).
Next, the management server 7 receives the image from the recording device 6 of the building 1 (step SA3), and stores the local image in the image storage table 13c of the database 13. Also, under control of the control unit 9, the scheduled collection unit 11 of the management server 7 generates, for example, a thumbnail image every 10 minutes and stores it in the image storage table 13c of the database 13 (step SA4).

  Next, the control unit 9 of the management server 7 activates the entry detection unit 12 and determines whether or not there is entry into the predetermined entry prohibited area 16Ad (see FIG. 6) (step SA5). If it is determined in step SA5 that entry has been made (Yes in step SA5), the entry detection unit 12 stores the occurrence date and time and the detection area thereof in the notification storage table 13e of the database 13 of the management server 7. For example, as shown in the first line (13e5) of FIG. 8, the entry detection unit 12 stores “2017/07/13 10:30:20” in the occurrence date and time field 13d1 and “detects” in the detection area field 13e2. Store as “area A”.

In addition, the entry detection unit 12 refers to the detection area storage table 13d of FIG. 7 and stores “composite image A” in the composite image thumbnail field 13e3, and the image of the security camera 5a in the security camera thumbnail field 13e4. Camera 1a "is stored.
On the other hand, when it is determined in step SA5 that the entry detection area has not been entered (No in step SA5), the control unit 9 ends the process.

  According to the video surveillance system of this example described above, the control unit 9 in the management server 7 receives an image data request from the surveillance terminal 16 installed at the surveillance site 15 via the network 2. Then, at a predetermined time, the regular collection unit 11 of the management server 7 extracts a camera image from the recording device 6 installed at the monitored site 1 and stores it in the database 13. Thereafter, the control unit 9 activates the entry detection unit 12 and determines whether or not there is an entry by a predetermined entry prohibited area 16Ad. Then, when it is determined that there is an entry in the entry prohibited area 16Ad, the occurrence date and the like of entry are stored in the alert storage area 13d of the database 13.

  Thus, on the screen of the monitoring terminal 16 installed at the monitoring sites 15 to 15 n, the monitoring staff can perform monitoring using the divided screens 16A1 to 16A4 and the composite image display 16A7. Note that the search is performed using the data search screen 16AB shown in FIG. 9, and the surveillance staff checks and displays the search results of the thumbnails of the composite screen and the corresponding camera thumbnails for crime prevention with the display switching button 16AB6. be able to. This makes it possible to grasp more detailed information such as, for example, the car number and the face of a person.

  Each configuration, function, processing unit, processing means, etc. described above can also be realized by hardware, for example, by designing part or all of them with an integrated circuit. Further, each configuration, function, etc. described above may be realized by software by a processor interpreting and executing a program that realizes each function. Information such as a program, a table, and a file for realizing each function can be placed in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

Further, control lines and information lines indicate what is considered to be necessary for the description, and not all control lines and information lines in the product are necessarily shown. In practice, almost all configurations may be considered to be mutually connected.
The present invention is not limited to the embodiment disclosed in the specification or the drawings, and it is needless to say that the present invention includes other applications and modifications without departing from the contents described in the claims. It is.

1 to 1 n: monitored site (eg, building), 2: network line, 3: communication device (monitored site side), 4a to 4c, image combining camera, 5a to 5c, crime prevention camera, 6: recording device ,
7 Management server 8 Communication unit 9 Control unit 10 Image combining unit 11 Regular collection unit 12 Entry detection unit (detection unit) 13 Database 13a Local information storage table 13b IP address storage table, 13c ... image storage table, 13d ... detection area storage table, 13d ... alert storage table, 15-15m ... monitoring site, 16 ... monitoring terminal

Claims (7)

A video monitoring system comprising: a plurality of monitoring cameras for shooting a monitored site; a monitoring terminal for displaying an image of the monitored site; and a management server for processing an image shot by the monitoring camera.
Management server
An image combining unit that combines images of the monitored site using images of a plurality of the monitoring cameras to create a combined image;
A detection area receiving unit that outputs the composite image created by the image combining unit to the monitoring terminal and receives specification of a region to be detected;
A detection unit that determines whether or not an abnormality has occurred in the received detection area based on an image of the monitoring camera corresponding to the detection area;
When the detection unit determines that an abnormality occurs in the detection area, the monitoring terminal uses the video of the monitoring camera used for the determination and the composite image created using the video of the monitoring camera used for the determination. The output unit to output to
An image monitoring system characterized by comprising. The abnormality occurring in the detection area is a parking violation, and the detection unit determines the parking violation when a vehicle that does not move for a predetermined time or more exists in the detection area.
The video surveillance system according to claim 1. The abnormality occurring in the detection area is a residence of a person, and the detection unit is configured to keep the same person in the detection area for a predetermined time or more for a predetermined time or more. Judge as staying,
The video surveillance system according to claim 1. The abnormality generated in the detection area is illegal dumping of waste, and the detection unit determines that the illegal dumping is performed when an approach person leaves an article in the detection area for a predetermined time.
The video surveillance system according to claim 1. 5. The surveillance camera according to any one of claims 1 to 4, wherein at least two types of an image synthesizing camera installed at a high place and a security camera installed at a low place are installed. Video surveillance system. When an abnormality occurs in the detection area received by the detection area reception unit, the detection unit stores a composite image of a predetermined time interval captured by the image composition camera created by the image composition unit as a composite image thumbnail, Storing a security camera image of a predetermined time interval captured by the security camera as a security camera thumbnail,
The video surveillance system according to claim 5. An image monitoring apparatus that acquires an image from a monitored site where a plurality of monitoring cameras are installed and monitors the monitored site,
An image combining unit that combines images of the monitored site using images of a plurality of the monitoring cameras to create a combined image;
A detection area reception unit that specifies an area to be detected on the composite image created by the image combining unit;
A detection unit that determines whether or not an abnormality has occurred in the received detection area based on an image of the monitoring camera corresponding to the detection area;
When the detection unit determines that an abnormality has occurred in the detection area, the composite image created using the video of the monitoring camera used for the determination and the video of the monitoring camera used for the determination is displayed.
A video surveillance device characterized by

Images