JP7184917B2 - Monitoring system - Google Patents

Description

The present invention relates to a monitoring system that supports patrols by security guards.

In general, security within the premises of various facilities is accomplished by monitor monitoring using surveillance camera images, detecting intruders using sensor equipment, or patrol by security guards. In addition, there is a monitoring system that uses both of them, such as a system that links monitoring camera equipment and sensor equipment, and various types of monitoring systems have been developed.
For example, in Patent Document 1, in a monitoring system in which images captured by a plurality of cameras are transmitted to a monitoring terminal via a network, the monitoring terminal transmits to the mobile terminal (mobile body) based on the position information of the mobile terminal. An invention for selecting a camera image to be viewed is disclosed.

JP 2017-34541 A

Systems that coordinate surveillance with surveillance camera equipment and sensor equipment are generally configured to activate the surveillance camera equipment when an intruder is detected by the sensor equipment. The problem with this system is that the surveillance camera does not work unless there is an intruder or other object to be detected in the section where the sensor equipment is installed.

In addition, when patrols by security guards are additionally used, the following problems are feared. In most cases, the purpose of sensor equipment is to detect intruders. is incompatible with It is also conceivable to use a GPS (Global Positioning System) to identify the position of the security guard during patrol, but this is not suitable for environments where GPS signals are difficult to reach, such as inside a building. Also, by storing the operation results of the sensor equipment as a history, it is possible to record the time when an abnormality occurred, but it is necessary to store the records of patrols by security guards using a separate system.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a monitoring system that utilizes monitoring camera equipment to support patrols by guards.

In order to achieve the above object, the present invention configures a monitoring system as follows.
(1) In a monitoring system that supports patrols by security guards, multiple surveillance cameras and fixed wireless communication devices installed at various locations along patrol routes, and mobile wireless communication devices carried by security guards. , a control device connected to the surveillance camera and the fixed wireless communication device via a network, and a display device for displaying an image of the surveillance camera under the control of the control device, wherein the control device comprises and monitoring the circulation status based on the result of communication between the fixed wireless communication device and the mobile wireless communication device, and displaying information indicating the circulation abnormality on the display device when a circulation abnormality is detected. Characterized by

(2) In the monitoring system described in (1) above, when the fixed wireless communication device detects that the mobile wireless communication device has entered its wireless communication area, the mobile wireless communication device Detection information indicating detection of the communication device is transmitted to the control device, and the control device determines whether or not there is a circulation abnormality based on the detection information transmitted from each of the fixed wireless communication devices. Characterized by

(3) In the monitoring system described in (2) above, the control device determines that there is a circulation abnormality when the detection information is not received in a predetermined order from each of the fixed wireless communication devices. Characterized by

(4) In the monitoring system described in (2) above, the control device determines that there is a circulation abnormality when the detection information is not received from each of the fixed wireless communication devices within a predetermined time interval. It is characterized by

(5) In the surveillance system according to any one of (1) to (4) above, the control device identifies a surveillance camera closest to the mobile wireless communication device when a patrol abnormality is detected. and displaying the image of the surveillance camera on the display device.

(6) In the surveillance system described in (5) above, when a patrol abnormality is detected, the control device switches the surveillance camera closest to the mobile wireless communication device to the mobile wireless communication device. It is characterized by shooting in a direction.

According to the present invention, it is possible to provide a monitoring system that supports patrol security by guards using monitoring camera equipment.

It is a figure which shows the structural example of the monitoring system based on one Example of this invention. FIG. 2 is a diagram showing an example of arrangement of surveillance cameras and fixed wireless communication devices; FIG. 10 is a diagram showing an example of a tour schedule table; FIG. 11 is a diagram showing an example of a circulation history table; FIG. FIG. 10 is a diagram showing a display example of a display device when a circulation abnormality (circulation omission) is detected; FIG. 10 is a diagram showing a display example of a display device when a cyclic abnormality (cyclic delay) is detected;

A monitoring system according to an embodiment of the present invention will be described below with reference to the drawings. In each figure referred to in the following description, parts equivalent to those in other figures are denoted by the same reference numerals.

FIG. 1 shows a configuration example of a monitoring system according to one embodiment of the present invention.
In the surveillance system of this example, a plurality of surveillance cameras 101 and fixed wireless communication devices 102 are installed at various locations in the premises, and control cameras connected to these surveillance cameras 101 and fixed wireless communication devices 102 via the premises network. A device 201 is installed in the surveillance room. Also, the mobile wireless communication device 301 is carried by security guards who patrol the premises. The monitoring camera 101 and the fixed wireless communication device 102 are connected to the local network via the relay device 103 , and the control device 201 is connected to the local network via the relay device 205 .

The control device 201 holds control software 202 and uses this control software 202 to centrally control the monitoring system. Also connected to the control device 201 are a display device 203 for displaying the image of the monitoring camera 101 when the patrol abnormality is detected, and a recording device 204 for recording the image of the monitoring camera 101 when the patrol abnormality is detected. ing.

FIG. 2 shows an arrangement example of the surveillance camera 101 and the fixed wireless communication device 102 . Surveillance cameras 101 and fixed wireless communication devices 102 are placed at various locations along patrol routes R1 and R2 of security guards. The arrangement interval of the fixed wireless communication devices 102 is, for example, several tens of meters. R1 indicates the route that the security guard has already patrolled, and R2 indicates the route that the guard will patrol from now on. In FIG. 2, a surveillance camera 101-A and a fixed wireless communication device 102-A are placed at point A, a surveillance camera 101-B and a fixed wireless communication device 102-B are placed at point B, and a surveillance camera 102-B is placed at point C. A camera 101-C and a fixed wireless communication device 102-C are arranged, and a monitoring camera 101-D and a fixed wireless communication device 102-D are arranged at point D. Further, relay devices 103-A to 103-D are also arranged at each of points A to D, but illustration thereof is omitted.

When mobile wireless communication device 301 enters the wireless communication area of any fixed wireless communication device 102 , mobile wireless communication device 301 can wirelessly communicate with that fixed wireless communication device 102 . In this example, the fixed wireless communication device 102 can perform wireless communication within a radius of several tens of meters as a wireless communication area. When the wireless communication areas of two adjacent fixed wireless communication devices 102 partially overlap, the mobile wireless communication device 301 existing in the overlapping area Wireless communication is performed with the communication device 102 . In this case, mobile wireless communication device 301 may communicate with fixed wireless communication device 102 with better communication quality, or may communicate with fixed wireless communication device 102 in the direction to which mobile wireless communication device 301 moves. Communication may be with the device 102 or may be with a fixed wireless communication device 102 selected in some other manner.

Since the fixed wireless communication device 102 is communicably connected to the control device 201, the mobile wireless communication device 301 can also communicate with the control device 201 via the nearby fixed wireless communication device 102. FIG. Therefore, the security guard carrying the mobile wireless communication device 301 can talk with the observer (inside the surveillance room) who operates the control device 201, if necessary.

Further, when the fixed wireless communication device 102 detects that the mobile wireless communication device 301 has entered the wireless communication area, it transmits to the control device 201 cyclic detection information indicating the detection of the mobile wireless communication device 301 . . Since the fixed wireless communication devices 102 that can communicate with the mobile wireless communication device 301 are sequentially switched as the guard patrols, the patrol detection information is transmitted in order from each fixed wireless communication device 102 on the patrol route. become.

The cyclic detection information transmitted by the fixed wireless communication device 102 includes at least the identification information of the fixed wireless communication device 102 (for example, the unique ID of the fixed wireless communication device 102). The control device 201 holds in advance the position information of all the monitoring cameras 101 and fixed wireless communication devices 102 in the premises, and based on the identification information included in the received patrol detection information, identifies the transmission source of the patrol detection information. can identify the fixed wireless communication device 102 and its position. As a result, the approximate position of the mobile wireless communication device 301 and the monitoring cameras 101 in the vicinity thereof can also be specified.

The operation modes of the monitoring system of this example will be described below. The monitoring system of this example has a patrol security mode and a non-patrol security mode. The patrol guard mode is a mode in which guards patrol the area. The non-patrol security mode is a mode in which security guards do not patrol. The control device 201 switches between the patrol guard mode and the non-patrol guard mode in accordance with the operation of an observer in the surveillance room. It should be noted that the patrol scheduled time of the guard may be set in advance, and switching between the patrol guard mode and the non-patrol guard mode may be automatically performed based on the patrol scheduled time.

First, the non-patrol security mode will be explained. In the non-patrol security mode, the control device 201 analyzes images transmitted from surveillance cameras 101 located at various locations in the premises by image processing, and detects anomalies. When an abnormality is detected, the control device 201 issues an alarm to report the occurrence of the abnormality, and causes the display device 203 to display the image of the monitoring camera 101 in which the abnormality is detected. As a result, the surveillance staff in the surveillance room can confirm the image of the vicinity where the abnormality was detected.

Further, the control device 201 causes the recording device 204 to record the image of the monitoring camera 101 in which the abnormality is detected together with the alarm information. The time length of the video recorded in the recording device 204 is arbitrary, and may be a predetermined fixed time length or a time length instructed by the operator of the control device 201 . The alarm information recorded in the recording device 204 includes the date and time of the alarm, information indicating the location where the abnormality occurred (for example, location information or identification information of the monitoring camera 101 in which the abnormality was detected).

The operation of the non-patrol security mode is not limited to the above, and various existing monitoring methods can be used. For example, moving body detection means such as infrared sensors are installed at various locations in the premises, and when a moving body is detected by the moving body detection means, the moving body detection means (or the control device 201) issues an alarm. may report. In response to the alarm, the control device 201 identifies the monitoring camera 101 near the moving body detection means that detected the moving body, and causes the display device 203 to display the image of the monitoring camera 101. good.

Next, the patrol guard mode will be described. In the patrol guard mode, a patrol schedule table in which the patrol order of the guards is set in advance and a patrol history table for recording the patrol status of the guards are used. FIG. 3 shows an example of a tour schedule table. The patrol schedule table in FIG. It has each item of "cyclic order" indicating the order in which it should be performed. In the example of FIG. 3, it is stipulated that the patrol is performed in the order of A point, B point, C point, D point, and so on. In addition, since it is sufficient to specify the order in which the tour is to be performed, instead of (or in addition to) the "tour order", the scheduled time for visiting each location may be set in the tour schedule table.

Security guards carry mobile wireless communication devices 301 and patrol the premises. When the security guard approaches point A, mobile wireless communication device 301 is detected by fixed wireless communication device 102-A at point A, and patrol detection information is transmitted from fixed wireless communication device 102-A to control device 201. be done. The control device 201 records the tour history in the tour history table based on the tour detection information received from the fixed wireless communication device 102-A. Next, when the guard approaches point B, mobile wireless communication device 301 is detected by fixed wireless communication device 102-B at point B, and the same processing as above is performed. At each subsequent point, the same processing as described above is performed.

FIG. 4 shows an example of the circulation history table. The tour history table in FIG. 4 includes a “fixed wireless communication device ID” that identifies the fixed wireless communication device 102 that issued the tour detection information, and a “tour order” that indicates the order in which the tour detection information was issued. ” and “date and time of notification of mobile wireless communication device” indicating the date and time when this patrol detection information was notified. In the example of FIG. 4, it is recorded as the tour history that the tour was performed in the order defined in the tour schedule table (FIG. 3).

The control device 201 in patrol guard mode detects a patrol abnormality based on the patrol detection information transmitted from each of the fixed wireless communication devices 102 . In this example, a cyclic abnormality is detected from the following two viewpoints. It should be noted that the cyclic abnormality may be detected from other viewpoints.

From the first point of view, it is determined whether or not there is a patrol omission, that is, whether or not each point on the patrol route is moved in the planned order. Specifically, when the control device 201 fails to receive patrol detection information from each of the fixed wireless communication devices 102 in a predetermined order (the order set in the patrol guard table), the control device 201 determines patrol abnormality. . This makes it possible to detect that a circulation omission has occurred due to some kind of trouble.

From the second point of view, it is determined whether there is a cyclic delay, that is, whether each point on the cyclic route is moved within a scheduled time interval. Specifically, when the control device 201 fails to receive the circulation detection information from each of the fixed wireless communication devices 102 within a predetermined time interval, the control device 201 determines that the circulation is abnormal. For example, within a predetermined time after receiving the tour detection information from the fixed wireless communication device 102-B at point B, the tour detection information is received from the next fixed wireless communication device 102-C at point C. If not, it is determined that there is a circulation abnormality. This makes it possible to detect that a cyclic delay has occurred due to some kind of trouble. The predetermined time interval may vary depending on factors such as the distance of the section at each point, or may be constant (eg, 15 minutes). If the time interval is different for each section, the setting of the time interval for each section should be included in the tour schedule table.

When the control device 201 detects a cyclic abnormality, the control device 201 issues an alarm to report the occurrence of the abnormality, and further performs the following control. First, the control device 201 determines the current position of the mobile wireless communication device 301 based on the communication results between the fixed wireless communication device 102 and the mobile wireless communication device 301 . For example, the fixed wireless communication device 102 (the fixed wireless device that has transmitted the latest patrol detection information) that is in a state of being able to communicate with the mobile wireless It is determined whether the mobile wireless communication device 301 is on the upstream side or the downstream side of the patrol route with respect to the communication device 102). With this, the approximate current position of mobile wireless communication device 301 can be estimated. Also, by measuring the reception strength of the fixed wireless communication device 102 that is in a state of being able to communicate with the mobile wireless communication device 301, the approximate distance between the fixed wireless communication device 102 and the mobile wireless communication device 301 is calculated. You may As a result, it can be estimated that the mobile wireless communication device 301 exists at a position based on the estimated distance on the upstream side or downstream side of the patrol route with respect to the position of the fixed wireless communication device 102, so the current position estimation accuracy is increased. Increased. It goes without saying that the current position of mobile wireless communication device 301 may be estimated by other methods.

Next, the control device 201 specifies the surveillance camera 101 closest to the current position of the mobile wireless communication device 301 and causes the surveillance camera 101 to shoot. At that time, the control device 201 directs the monitoring camera 101 toward the current position of the mobile wireless communication device 301 and controls it to capture the image. As a result, the surveillance camera 101 can photograph the security guard carrying the mobile wireless communication device 301 and the situation in the vicinity thereof. The video from surveillance camera 101 is displayed on display device 203 along with other related information, as will be described later.

Further, the control device 201 causes the recording device 204 to record the image of the monitoring camera 101 in which the abnormality is detected together with the alarm information. The time length of the video recorded in the recording device 204 is arbitrary, and may be a predetermined fixed time length or a time length instructed by the operator of the control device 201 . The alarm information recorded in the recording device 204 includes the date and time of the alarm, the type of abnormality ("patrol omission" or "patrol delay"), and information indicating the location of the abnormality (for example, the fixed type where the abnormality was detected). location information or identification information of the wireless communication device 102).

FIG. 5 shows a display example of the display device 203 when a cyclic abnormality is detected. FIG. 5A is a display example when cyclic leakage is detected, and FIG. 5B is a display example when cyclic delay is detected. A cyclic abnormality notification screen 501 as shown in FIG. 5 is displayed on the display device 203 when a cyclic abnormality is detected. The patrol anomaly notification screen 501 includes an area 502 that displays the type of patrol anomaly and the location of occurrence, an area 503 that displays the patrol history up to the present time, the patrol route of the guard and the current estimated position of the mobile wireless communication device 301 . is displayed on the premises map, and an area 505 for displaying an image around the estimated position of the mobile wireless communication device 301 captured by the monitoring camera 101 . By displaying such a patrol anomaly notification screen 501 on the display device 203, when a patrol anomaly is detected, the surveillance staff in the surveillance room can see the previous patrol status, patrol anomaly type and occurrence position, and security information. You can check the guard's patrol route, current estimated position, and images of the guard's surroundings.

The patrol abnormality notification screen 501 accepts an operation to select one of a plurality of patrol histories displayed in the area 503, and displays the past video (at the time of patrol) captured by the surveillance camera 101 corresponding to the designated patrol history. ) may be switched so that the area 505 is displayed. As a result, when the surveillance staff confirms the patrol anomaly, they can also grasp the state of the security guard and his surroundings before the patrol anomaly is detected.

Further, upon detection of a patrol abnormality, the control device 201 transmits to the mobile wireless communication device 301 patrol abnormality notification information for notifying the patrol abnormality to the security guard. The patrol abnormality notification information is transmitted via the fixed wireless communication device 102 in the vicinity of the mobile wireless communication device 301 (for example, the nearest fixed wireless communication device 102). The patrol anomaly notification information includes the type of patrol anomaly, images captured by surveillance cameras 101 in the vicinity, and the like. In addition, information on cyclic anomalies that have occurred in the past in the vicinity may also be included. When mobile wireless communication device 301 receives the cyclic abnormality notification information, mobile wireless communication device 301 displays it on its own monitor. Also, the mobile wireless communication device 301 may light or flash a predetermined warning lamp, or output a predetermined warning sound or warning message by voice instead of/or in addition to the monitor output.

In the patrol guard mode, the guard operates the mobile radio communication device 301 at any time during the patrol to control the alarm that notifies the occurrence of an abnormality via the nearby fixed radio communication device 102. It can also be sent to the device 201 . When the control device 201 receives an alarm issued from the mobile radio communication device 301, the control device 201 performs the same operation as when the circulation abnormality is detected. That is, the control device 201 determines the current position of the mobile wireless communication device 301 based on the communication results between the fixed wireless communication device 102 and the mobile wireless communication device 301 . Then, the surveillance camera 101 closest to the current position of the mobile wireless communication device 301 is specified, and the surveillance camera 101 is controlled to face the current position of the mobile wireless communication device 301 and shoot. The image of the monitoring camera 101 is displayed on the display device 203 and recorded on the recording device 204 .

As described above, the surveillance system of this example includes a plurality of surveillance cameras 101 and fixed wireless communication devices 102 installed at various locations along a patrol route, and a mobile wireless communication device 301 carried by a security guard. , a control device 201 connected to a monitoring camera 101 and a fixed wireless communication device 102 via a network; Then, the control device 201 monitors the circulation status based on the communication result between the fixed wireless communication device 102 and the mobile wireless communication device 301, and when a circulation abnormality is detected, the information indicating the circulation abnormality is displayed on the display device. 203 is configured to be displayed.

In other words, the monitoring system of this example is configured to be able to support patrol security by guards using monitoring camera equipment. In addition, even in an environment where GPS signals are difficult to reach, such as inside a building, it is configured to be able to grasp the patrol status of security guards and detect patrol anomalies. Therefore, it is possible to provide a monitoring system that is useful for supporting security by patrolling by security guards.

Here, in the above example, the monitoring camera 101, the fixed wireless communication device 102, and the relay device 103 are arranged at different points, but they may be arranged at different points. A plurality of fixed wireless communication devices 102 and relay devices 103 may be connected to one relay device 103 .

Further, in the patrol monitoring mode, the control device 201 may additionally perform anomaly detection by video analysis or the like of the monitoring camera 101 that is not in the vicinity of the security guard. Further, in the patrol monitoring mode, the control device 201 may cause the display device 203 to always display an image of the patrol guard. In this case, the monitoring camera 101 displaying the image on the display device 203 may be switched as the security guard moves, and the direction of the monitoring camera 101 may be controlled so as to follow the security guard.

Although the present invention has been described in detail based on the embodiments, it goes without saying that the present invention is not limited to the monitoring system described here, and can be widely applied to monitoring systems other than those described above.
The present invention can also be provided as, for example, a method or system for executing processing according to the present invention, a program for realizing such a method or system, or a storage medium for storing the program.

INDUSTRIAL APPLICABILITY The present invention can be used in various monitoring systems that support patrols by security guards.

101: Surveillance camera 102: Fixed wireless communication device 103: Relay device 201: Control device 202: Control software 203: Display device 204: Recording device 205: Relay device 301: Mobile wireless communication device

Claims (4)

In a monitoring system that supports patrols by security guards,
A plurality of surveillance cameras and fixed wireless communication devices installed at various locations along the patrol route;
a mobile wireless communication device carried by a security guard;
a control device connected to the surveillance camera and the fixed wireless communication device via a network;
a display device that displays the image of the surveillance camera under the control of the control device;
When the fixed wireless communication device detects that the mobile wireless communication device has entered its wireless communication area, the fixed wireless communication device transmits detection information indicating detection of the mobile wireless communication device to the control device. death,
The control device is capable of switching between a patrolling security mode in which guards patrol and a non-patrol guard mode in which guards do not patrol, according to an operation by an observer. an abnormality is detected by analyzing the image transmitted from the surveillance camera by image processing; Based on the detection information transmitted from each of the fixed wireless communication devices, it is determined whether or not there is a patrol abnormality, and if an abnormality is detected in the non-patrol security mode, or in the patrol security mode causing the display device to display an anomaly notification screen including an alarm for notifying the occurrence of an anomaly when a patrol anomaly is detected ;
The anomaly notification screen when an anomaly is detected in the non-patrol security mode has a first area for displaying the type of anomaly and the position of occurrence as the alarm information, and a second area for displaying the patrol history up to the present. An area, a third area displaying the patrol route of security guards and the current estimated position of the mobile wireless communication device on a map, and the vicinity of the estimated position of the mobile wireless communication device were photographed by the surveillance camera. and a fourth area for displaying an image, and when an operation to select one of the plurality of tour histories displayed in the second area is received, the tour history corresponding to the selected tour history is received. A surveillance system characterized by performing display switching so that a past image captured by a surveillance camera is displayed in the fourth area . The monitoring system of claim 1, wherein
The monitoring system, wherein the control device determines that there is a patrol abnormality when the detection information cannot be received in a predetermined order from each of the fixed wireless communication devices in the patrol guard mode. The monitoring system of claim 1, wherein
The monitoring system, wherein the control device determines that the patrol is abnormal when the detection information is not received from each of the fixed wireless communication devices within a predetermined time interval in the patrol guard mode. In the monitoring system according to any one of claims 1 to 3,
In the patrol guard mode, the control device directs a surveillance camera closest to the mobile radio communication device to photograph in the direction of the mobile radio communication device when a patrol abnormality is detected. A surveillance system characterized by:

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