Security system and security system program

Abstract

To make it easy to intuitively grasp the movement of an intruder, etc. detected by a detection sensor even when a security area is wide.SOLUTION: A security system 100 in which detection sensors are provided at a plurality of locations in a security area includes a display unit 22 for displaying, on the same screen, a real image A1 in which an object is imaged together with a detection area of a detection sensor 10, and a composite image A2 in which the movement of the object is superimposed on an image of the detection area viewed from a different angle from the real image A1 such that the movement directions of the images A1 and A2 are aligned with each other in each of a case where the object is detected by the detection sensor 10 and a case where the object moves and is detected by another detection sensor 10.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a security system and a program for the security system. [Background technology]

[0002] As shown in Patent Document 1, a conventional security system is configured to display on the same screen a real image, which is an actual video of the detection area of ​​a detection sensor, and a composite image, which is an image of the detection area viewed from a different angle, such as from above, with the movement of a person detected by the detection sensor superimposed thereon.

[0003] With this configuration, it is possible to check the person detected by the detection sensor in a real image, while also checking how the person is moving within the detection area in a composite image, and therefore, for example, to take prompt action when an intruder is detected.

[0004] However, in the security systems to date, sufficient consideration has not been given to the case where the systems are applied to a wide security area where detection sensors are installed in multiple locations.

[0005] As a result, if an object detected by one detection sensor moves and is detected by another detection sensor, for example, if the composite image uses a map or the like and is displayed in a manner such that north is facing up, the direction in which the object moves may become misaligned between the composite image and the real image, which may make it difficult to intuitively grasp the movement of an intruder, etc. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2019-185115 Summary of the Invention [Problem to be solved by the invention]

[0007] Therefore, the present invention has been made to solve the above-mentioned problems in one fell swoop, and its objective is to make it easier to intuitively grasp the movements of intruders and others detected by a detection sensor, even when the surveillance area is large. [Means for solving the problem]

[0008] The security system of the present invention is a security system in which detection sensors are installed at multiple locations in a security area, and is characterized by having a display unit that, in each case where an object is detected by one detection sensor and the object moves and is detected by another detection sensor, displays a real image of the object along with the detection area of ​​the detection sensor, and a composite image in which the movement of the object is superimposed on an image of the detection area viewed from a different angle from the real image, on the same screen so that the direction of movement of the object in each image is aligned.

[0009] With a security system configured in this manner, when an object is detected by one detection sensor and when that object moves and is detected by another detection sensor, the direction of the object's movement is displayed so as to be aligned in both the real image and the synthetic image, making it easier to intuitively grasp the movements of intruders, etc. detected by the detection sensors, even when the surveillance area is large.

[0010] It is preferable that the display unit is configured to switch between the real image and the synthetic image when an object detected by one of the detection sensors moves and is detected by another of the detection sensors. With this configuration, even if an intruder or the like moves over a wide area, the real image and the synthetic image are switched every time the intruder or the like is detected by each detection sensor, so the movement of the intruder or the like can be reliably tracked. Furthermore, with this configuration for switching between real images and composite images, each image can be displayed larger and has better visibility than a configuration in which multiple real images and multiple composite images are displayed simultaneously.

[0011] It is preferable that the display unit displays the real image and the synthetic image so that the horizontal movements of the object in each image are synchronized. With this configuration, the advantageous effect of the present invention, such as making it easier to intuitively grasp the movement of an object, can be more significantly exhibited.

[0012] In a specific embodiment, the composite image is a rotated or inverted map including the detection area, with the movement of the object superimposed on the rotated or inverted map. In another embodiment, the real image is obtained by rotating or inverting raw data of an image of the detection area. With this configuration, the directions of movement of objects in the real image and the synthetic image can be aligned by simple image processing.

[0013] It is preferable that the device further comprises a notification unit that notifies an external communication terminal of the detection of an object when the detection sensor detects the object. With this configuration, it is possible to quickly notify the user that an intruder or the like has been detected.

[0014] It is preferable that the notification unit transmits at least one of the real image and the synthetic image to the communication terminal. With this configuration, it is possible to grasp the movements of intruders and the like from a location away from the site (remotely), and it is also possible to know in which detection area the intruder and the like were detected.

[0015] In addition, the program for a security system according to the present invention is a program used in a security system in which detection sensors are installed at multiple locations in a security area, and is characterized in that, in each case where an object is detected by one detection sensor and the object moves and is detected by another detection sensor, the program causes the computer to function as a display unit that displays, on the same screen, a real image of the object captured along with the detection area of ​​the detection sensor, and a composite image in which the movement of the object is superimposed on an image of the detection area viewed from a different angle from the real image, so that the direction of movement of the object in each image is aligned. According to the security system program configured in this manner, it is possible to achieve the same effects as the security system described above. [Effects of the Invention]

[0016] According to the present invention, even if the surveillance area is large, it is possible to easily and intuitively grasp the movements of an intruder or the like detected by a detection sensor. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram showing the configuration of a security system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a functional block diagram showing functions of the information processing apparatus according to the embodiment. [Figure 3] 3A and 3B are schematic diagrams showing a real image and a composite image displayed on the display unit of the embodiment. [Figure 4] 3A and 3B are schematic diagrams showing a real image and a composite image displayed on the display unit of the embodiment. [Figure 5] FIG. 2 is a reference diagram for explaining features of the display unit of the embodiment. [Figure 6] FIG. 2 is a reference diagram for explaining features of the display unit of the embodiment. [Figure 7] 3A and 3B are schematic diagrams showing a real image and a composite image displayed on the display unit of the embodiment. [Figure 8] 3A and 3B are schematic diagrams showing a real image and a composite image displayed on the display unit of the embodiment. [Figure 9] FIG. 10 is a functional block diagram showing functions of an information processing apparatus according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] A security system according to an embodiment of the present invention will be described with reference to the drawings.

[0019] [System Configuration] The security system of this embodiment is used to guard various facilities, such as business facilities such as offices, commercial facilities, airports, and train stations, and is designed to detect intruders into security areas within or around the facility.

[0020] Specifically, as shown in FIG. 1, this security system 100 includes a plurality of detection sensors 10 and an information processing device 20 that acquires signals output from these detection sensors 10.

[0021] The detection sensors 10 are installed at multiple locations in the security area within or around the facility, and detect objects such as intruders that enter a pre-set detection area and emit a signal indicating this.

[0022] Specifically, the detection sensor 10 may be a variety of human body detection sensors, such as a passive infrared sensor, an active infrared sensor, a radar sensor using microwaves or millimeter waves, or a camera sensor using an imaging element.

[0023] As shown in FIG. 1, the information processing device 20 acquires the signal output from the detection sensor 10 via a network, for example, and displays on a display D various pieces of information relating to security, including the acquired information.

[0024] This information processing device 20 is a general-purpose or dedicated computer equipped with a CPU, memory, display D, etc., and performs the functions of at least a state switching unit 21 and a display unit 22, as shown in Figure 2, by the CPU and its peripheral devices working together in accordance with the security system program stored in the memory.

[0025] The state switching unit 21 switches the state of the detection area of ​​the detection sensor 10, and more specifically, switches the detection area of ​​each detection sensor 10 between an armed state in which an alarm signal is output when an object is detected, and a disarmed state in which the armed state is released. In this embodiment, the state of each detection area can be switched between the armed state and the disarmed state using a selection means S such as a mouse or a touch panel.

[0026] The armed state is a state in which, when the detection sensor 10 detects an object, a signal indicating this is output from the detection sensor 10 and a warning or the like indicating that the detection sensor 10 has detected an object is displayed on the display D.

[0027] On the other hand, the disarmed state is a state in which the above-mentioned warnings and the like are not displayed on the display D. Specifically, the detection function of the detection sensor 10 may be stopped so that the detection sensor 10 does not detect an object, but in this embodiment, the detection function of the detection sensor 10 is maintained, and even if the detection sensor 10 detects an object, a warning and the like are not displayed on the display D through signal processing.

[0028] Here, the display unit 22 displays various pieces of information related to security on a display D provided in the information processing device 20. However, the display unit 22 may also display various pieces of information on a display provided in a computer other than the information processing device 20, or on a display provided in a mobile terminal such as a mobile phone or a tablet.

[0029] As shown in FIG. 3, the display unit 22 of this embodiment displays on a display D a security area map M that provides an overhead view of a security area in which detection sensors 10 are provided at multiple locations.

[0030] The alert area map M is an overhead image that includes various features of the alert area, such as the geographical features around the facility and the layout of the facility, and may include, for example, an aerial photograph, map, floor plan, or ground surface image that includes the alert area.

[0031] 3 shows a case where security system 100 is applied to a commercial facility, and security area map M shows an overview of the entire security area set around the facility. However, display unit 22 may also display a security area map M that shows an overview of part of the security area.

[0032] Furthermore, the display unit 22 displays an area display X indicating the detection area of ​​the detection sensor 10, superimposed on the alert area map M, as shown in FIG.

[0033] Here, the detection area of ​​the detection sensor 10 is set appropriately for each detection sensor 10, and may be set, for example, as one or more linear areas connecting one location to another distant location, or as a planar area having a certain range.

[0034] Examples of planar detection areas include horizontal surfaces along the horizontal direction, vertical surfaces along the vertical direction, and inclined surfaces inclined with respect to both the horizontal and vertical directions, and the planar shapes of these detection areas may be set to various shapes, such as rectangular, triangular, polygonal, circular, and partially circular.

[0035] As shown in Figure 3, the area display X is a schematic representation of the actual detection area of ​​the detection sensor 10 on the alert area map M, and may be a faithful representation of the actual detection area, or may be slightly offset from the actual detection area.

[0036] Here, the security system 100 of this embodiment is equipped with an imaging means (not shown) that images the detection area of ​​the detection sensor 10, and the display unit 22 displays a real image A1 of the detection area imaged by the imaging means, as shown in Fig. 3. The imaging means may be provided integrally with the detection sensor 10, or may be provided separately from the detection sensor 10, for example, in a location separate from the detection sensor 10.

[0037] The real image A1 is a moving image that shows the detection area in real time, and an image of the detection area captured from the front is shown in Fig. 3. Note that, as will be described later, the real image A1 is not limited to an image of the detection area captured from the front, but can also be an image captured from an angle determined for each detection area, such as an image of the detection area captured from above.

[0038] The display unit 22 of this embodiment displays the real image A1 on the same screen as the above-mentioned security area map M, and here the real image A1 is displayed superimposed on the security area map M. However, the real image A1 does not necessarily have to be superimposed on the security area map M, and may be displayed next to the security area map M, for example.

[0039] In addition, as shown in Figure 4, the display unit 22 displays not only the above-mentioned real image A1, but also a composite image A2 in which an image of the detection area viewed from a different angle from the real image A1 is superimposed with the movement of an object detected in the detection area.

[0040] Specifically, the composite image A2 displays markers Z indicating the movement of objects in the detection area in real time, and in Fig. 4, the composite image A2 is displayed by superimposing the markers Z indicating the movement of objects on the above-mentioned security area map M. In other words, the composite image A2 in Fig. 4 is an image of the detection area viewed from above, with the markers Z indicating the movement of objects superimposed on it. In the following, for the sake of convenience, the "marker Z indicating the movement of the object" will also be simply referred to as the "movement of the object."

[0041] With the above-described configuration, the real image A1 and the composite image A2 are simultaneously displayed on the same screen, and therefore, when an object such as an intruder is detected in the detection area, the movement of the object appears in both the real image A1 and the composite image A2. Note that in Fig. 4, the display unit 22 also displays a marker Z indicating the movement of the object superimposed on the real image A1.

[0042] In Figure 4, the right side of real image A1 is the right side of the surveillance area map M, which is oriented with north at the top, and the left side of real image A1 is the left side of the surveillance area map M, which is oriented with north at the top.Therefore, the movement of an object moving, for example, from right to left in real image A1 will also be a movement from right to left in surveillance area map M, which is composite image A2, and the direction of movement of the object in both images A1 and A2 will be the same.

[0043] However, there are cases where the direction of movement of an object in the real image A1 and the synthetic image A2 do not match, and these cases will be described below with reference to FIGS.

[0044] First, as shown in the reference diagram of Figure 5, if real image A1 is an image taken from above, such as on the roof of a building, looking down on the detection area, and the detection area is located on the south side of the building in the surveillance area map M with north at the top, then if real image A1 and composite image A2 are displayed as is, the right side of real image A1 will become the left side of surveillance area map M, which is composite image A2, and the left side of real image A1 will become the right side of surveillance area map M, which is composite image A2.

[0045] In addition to the alert area map M, Figure 5 also displays a composite image A2 in which the movement of an object is superimposed on a background image B in which the detection area has been previously photographed from the front. However, as described above, if the real image A1 and the composite image A2 were displayed as is, the right side of the real image A1 would become the left side of the background image B, which is the composite image A2, and the left side of the real image A1 would become the right side of the background image B, which is the composite image A2.

[0046] As a result, if the real image A1 and the composite image A2 were displayed as they are, the movement of an object, for example, from right to left in the real image A1, would appear to be moving from left to right in the surveillance area map M or background image B, which is the composite image A2, and the direction of the object's movement would be reversed in both images A1 and A2.

[0047] Next, as shown in the reference diagram of Figure 6, if real image A1 is an image of the detection area taken from the building side and the detection area is located on the south side of the building in the surveillance area map M with north at the top, if real image A1 and composite image A2 are displayed as is, the right side of real image A1 will become the left side of surveillance area map M, which is composite image A2, and the left side of real image A1 will become the right side of surveillance area map M, which is composite image A2.

[0048] As a result, in these cases, if the real image A1 and the composite image A2 were displayed as they are, the movement of an object moving, for example, from left to right in the real image A1 would appear to be moving from right to left in the surveillance area map M, which is the composite image A2, and the direction of movement of the object would be reversed in both images A1 and A2.

[0049] Therefore, as shown in FIGS. 7 and 8, the display unit 22 of this embodiment displays a real image A1 and a synthetic image A2 on the same screen so that the directions of movement of objects in the respective images A1 and A2 are aligned.

[0050] To explain in more detail, one mode of the display unit 22 is to rotate raw data of an image of the detection area and display it as a real image A1, as shown in Fig. 7. Specifically, the display unit 22 rotates raw data of an image of the detection area by 180 degrees and displays it as the real image A1.

[0051] 8, another embodiment of the display unit 22 is one in which an image in which the movement of an object is superimposed on a rotated map including the detection area is displayed as a composite image A2, separate from the surveillance area map M. Specifically, the display unit 22 displays a map rotated 180 degrees from a map with north at the top, i.e., an image in which the movement of an object is superimposed on a map with south at the top, as the composite image A2.

[0052] In this way, the display unit 22 displays either the real image A1 or the composite image A2 as if it were rotated, thereby displaying the real image A1 and the composite image A2 so that the horizontal movements of the objects in each image A1, A2 are aligned.

[0053] In this configuration, when an object is detected by a certain detection sensor 10 and when that object moves and is detected by another detection sensor 10, the display unit 22 displays the real image A1 and the synthetic image A2 on the same screen so that the direction of movement of the object in each image A1 and A2 is aligned.

[0054] In this embodiment, when an object detected by a certain detection sensor 10 (hereinafter referred to as the first detection sensor 10) moves and is detected by another detection sensor 10 (hereinafter referred to as the second detection sensor 10), the display unit 22 switches between the real image A1 and the composite image A2.

[0055] In other words, when an object such as an intruder is detected by the first detection sensor 10, first, a real image A1 and a synthetic image A2 of the detection area of ​​the first detection sensor 10 are displayed on the same screen so that the direction of movement of the object in both images A1 and A2 is aligned.

[0056] Thereafter, when an object such as an intruder moves from the detection area of ​​the first detection sensor 10 to the detection area of ​​the second detection sensor 10, the display unit 22 of this embodiment switches the real image A1 and composite image A2 on the screen to the real image A1 and composite image A2 of the detection area of ​​the second detection sensor 10, and these real image A1 and composite image A2 are displayed on the same screen so that the direction of movement of the object in both images A1 and A2 is aligned.

[0057] [Effects of this embodiment] According to the security system 100 configured in this manner, when an object is detected by a detection sensor 10 and when that object moves and is detected by another detection sensor 10, the direction of movement of the object is displayed in the real image A1 and the composite image A2 so as to be aligned, so that even if the surveillance area is large, it becomes easier to intuitively grasp the movement of an intruder or the like detected by the detection sensor 10.

[0058] In particular, since the horizontal movements of the intruder, etc. in the real image A1 and the synthetic image A2 are aligned, the movements of the intruder, etc. can be grasped more intuitively, and quick action can be taken in the event of an abnormality, for example.

[0059] Moreover, when an object detected by one detection sensor 10 moves and is detected by another detection sensor 10, the display unit 22 switches between the real image A1 and the composite image A2, so that even if an intruder or the like moves over a wide area, the movement can be reliably tracked.

[0060] Furthermore, since the specific embodiment of the display unit 22 is a rotated version of a map including the detection area or raw data of an image captured of the detection area, simple image processing can align the direction of movement of objects in the real image A1 and the synthetic image A2.

[0061] Furthermore, since the display unit 22 displays not only the real image A1 but also the composite image A2, it becomes easier to find where the detected person is in the real image A1, even if it is nighttime, in bad weather, or the detected person is far away.

[0062] [Other embodiments] The present invention is not limited to the above-described embodiment.

[0063] For example, as shown in FIG. 9, the information processing device 20 according to the present invention may include a notification unit 23 that notifies an external communication terminal CT when the detection sensor 10 detects an object.

[0064] This notification unit 23 notifies that the detection sensor 10 has detected an object, for example by sending a message, and the external communication terminal CT can be a mobile terminal such as a mobile phone or tablet, or a computer of a security company, for example. With this configuration, it is possible to quickly notify the user that an intruder or the like has been detected.

[0065] Furthermore, the notification unit 23 may be configured to transmit at least one of the real image A1 and the synthetic image A2 to the communication terminal CT when the detection sensor 10 detects an object. In this case, the real image A1 or the composite image A2 may be transmitted as a rotated image as described in the above embodiment, or the real image A1 or the composite image A2 may be transmitted in an unrotated state. Note that the image transmitted by the notification unit 23 may be a still image or a moving image. With this configuration, it is possible to grasp the movements of intruders and the like from a location away from the site (remotely), and it is also possible to know in which detection area the intruder and the like were detected.

[0066] Furthermore, the real image A1 or the composite image A2 may be buffered in memory, and when the detection sensor 10 detects an object, the notification unit 23 may transmit the real image A1 or the composite image A2 before the detection time together with the real image A1 or the composite image A2 after the detection time.

[0067] Furthermore, in the above embodiment, the real image A1 or the composite image A2 is displayed as if rotated 180 degrees so that the direction of movement of the object in each of the real image A1 and the composite image A2 is aligned. However, the angle of rotation may be changed as appropriate, for example, by displaying the real image A1 or the composite image A2 as if rotated 90 degrees, and further, the real image A1 or the composite image A2 may be displayed as if flipped left to right or upside down.

[0068] In addition, in the above embodiment, when an object detected by the first detection sensor 10 moves and is detected by another second detection sensor 10, the display unit 22 switches between the real image A1 and the composite image A2. However, the display unit 22 may be configured to simultaneously display the real image A1 and the composite image A2 corresponding to the first detection sensor 10 and the real image A1 and the composite image A2 corresponding to the second detection sensor 10 without switching. That is, the display unit 22 may simultaneously display a plurality of real images A1 and a plurality of composite images A2 corresponding to the plurality of detection sensors 10, respectively.

[0069] Furthermore, the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications are possible without departing from the spirit of the invention. [Explanation of symbols]

[0070] 100···Security System 10 Detection sensor D Display 20. Information processing device 21 State switching unit 22...Display section 23...Notification Department M...Warning Area Map X...area display A1...Real Image A2 Composite image B Background Z marker (object movement) CT: Communication terminal

Claims

1. A security system in which detection sensors are installed at multiple locations in a security area, a display unit that, when an object is detected by a detection sensor, displays on the same screen a real image of the object captured by an imaging means together with the detection area of ​​the detection sensor, and a composite image in which a marker indicating the real-time movement of the object is superimposed on an image of the detection area viewed from a different angle from the real image, thereby simultaneously displaying the object captured in the real image and the marker on the composite image; A security system in which the display unit displays the real image or the image of the detection area so that the direction of movement of the object in the real image and the direction of movement of the marker on the composite image are aligned by performing a rotation or inversion process on the real image or the image of the detection area.

2. 2. The security system according to claim 1, wherein the display unit is configured to switch between the real image and the synthetic image when an object detected by one of the detection sensors moves and is detected by another of the detection sensors.

3. 2. The security system according to claim 1, wherein said display unit displays said real image and said synthetic image so that the horizontal movements of said object in each image are synchronized.

4. 2. The security system of claim 1, wherein the composite image is a rotated or flipped map including the detection area with the movement of the object superimposed on it.

5. 2. The security system according to claim 1, wherein the real image is obtained by rotating or inverting raw data of an image of the detection area.

6. 2. The security system according to claim 1, further comprising a notification unit that, when the detection sensor detects an object, notifies an external communication terminal of that fact.

7. The security system according to claim 6 , wherein the notification unit transmits at least one of the real image and the synthetic image to the communication terminal.

8. A program used in a security system in which detection sensors are installed at multiple locations in a security area, When an object is detected by a detection sensor, a real image of the object captured by an imaging means together with the detection area of ​​the detection sensor and a composite image in which a marker indicating the real-time movement of the object is superimposed on an image of the detection area viewed from a different angle from the real image are displayed on the same screen, thereby causing the computer to function as a display unit that simultaneously displays the object captured in the real image and the marker on the composite image, A program for a security system in which the display unit performs a rotation or inversion process on the real image or the image of the detection area so that the direction of movement of the object in the real image and the direction of movement of the marker on the composite image are aligned.

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