JP6660764B2 - Anomaly detection system - Google Patents

Description

  The present invention relates to an abnormality detection system.

  Conventionally, as a technology for detecting a fire in a monitoring area, a fire alarm that detects a detection target (for example, smoke) generated with the fire and detects the fire based on the detection result has been known (for example, Patent Document 1).

JP 2014-56420 A

  On the other hand, as one of the types of fires, when a cigarette is used for smoking, the type of cigarette falls on the user's bedding and the bedding burns, and the fire is caused by the cause. In the initial stage, the flame hardly rises, but a fire in which the concentration of toxic gas (for example, smoke, carbon monoxide, carbon dioxide, or hydrogen cyanide, etc.) locally increases around the fire source (hereinafter referred to as smoldering) Fire). When such a “smoldering fire” occurs, in the initial stage of the fire occurrence, the concentration of the toxic gas locally increases around the fire source (for example, near the mouth of a sleeping user), and the toxic gas increases. There is a possibility that the user who smokes may be in a dangerous state such as poisoning with poisonous gas.

  However, general fire alarms, including the fire alarm of Patent Literature 1, are provided at a position away from the sleeping user, such as near the ceiling or the upper end of the wall, so that "smoke fire" It takes a relatively long time before the concentration of the detection target around the fire alarm rises after the occurrence of the fire alarm, so that the detection of the fire is delayed, and the sleeping user inhales toxic gas. There is a possibility that the user may be in a dangerous state such as poisonous gas poisoning.

  The present invention has been made in view of the above problems, and has as its object to quickly and reliably detect an abnormality in a monitoring area in consideration of a user's sleep.

In order to solve the above-described problem and achieve the object, an abnormality detection system according to claim 1 is an abnormality detection system that detects an abnormality in a monitoring area that is an area where a user is present, wherein the user sleeps. Sleep determining means for determining the presence or absence of the user and whether the user's sleep is in a plurality of predetermined sleep states, an imaging means for capturing a monitoring area image that is an image of the monitoring area, and the imaging means Abnormality detection means for detecting an abnormality in the monitoring area based on the imaging result of (i), wherein the abnormality detection means detects an abnormality in the monitoring area according to a determination result of the sleep determination means. To change the sensitivity .

The abnormality detection system according to claim 2 is the abnormality detection system according to claim 1, wherein the abnormality detection unit is based on a monitoring area image captured by the imaging unit and a predetermined smoke diffusion range threshold. Detecting the abnormality in the monitoring area, and the abnormality detecting means changes the sensitivity of detecting the abnormality in the monitoring area by changing the smoke diffusion range threshold according to the determination result of the sleep determining means . .

Also, the abnormality detection system according to claim 3 is the abnormality detection system according to claim 1 or 2, further comprising an alarm unit that issues an alarm when the abnormality detection unit detects an abnormality in the monitoring area. The mode of the alarm by the alarm unit is changed according to the determination result of the sleep determining unit.

Further, the abnormality detection system according to claim 4 is an abnormality detection system that detects an abnormality in a monitoring area, which is an area where a user is present, wherein the presence or absence of sleep of the user and the sleep of the user are determined by a predetermined number. Sleep determining means for determining which of the sleep states is, an imaging means for capturing a monitoring area image which is an image of the monitoring area, and an abnormality in the monitoring area based on an imaging result of the imaging means. Abnormality detection means for detecting the alarm, and an alarm means for alarming when the abnormality detection means detects an abnormality in the monitoring area, the alarm means, the elapsed time from the start of the alarm, The mode of the alarm is changed according to the determination result of the sleep determining unit at the time when the elapsed time has elapsed.

The abnormality detection system according to claim 5 is the abnormality detection system according to any one of claims 1 to 4, wherein the plurality of sleep states determined by the sleep determination unit are light sleep states. And deep sleep.

According to the abnormality detection system according to claim 1, by changing the sensitivity for detecting an abnormality in the monitoring area based on the determination result of the sleep determining unit, for example, the monitoring area is considered in consideration of the user's sleep. Since the sensitivity for detecting the abnormality in the monitoring area can be changed, the abnormality in the monitoring area can be quickly and reliably detected in consideration of the user's sleep. In particular, for example, when the user is sleeping, by changing the sensitivity for detecting an abnormality in the monitoring area so as to quickly detect a fire that is an abnormality in the monitoring area, the aforementioned “smoking fire” Can be detected immediately after the occurrence of "", and it is possible to prevent a sleeping user from inhaling toxic gas and causing toxic gas poisoning or the like.

According to the abnormality detection system according to the third aspect , by issuing a warning about the abnormality, for example, it is possible to warn the user or the like of the abnormality in the monitoring area, so that the safety of the user is further ensured. Can be.
According to the abnormality detection system of the third aspect, since the alarm mode can be changed, for example, the sleeping user can be woken up (awakened), so that the safety of the user can be improved. Properties can be more reliably ensured.

It is a figure showing the disaster prevention terminal provided in the monitoring area concerning an embodiment. It is a block diagram showing a disaster prevention terminal. It is the figure which illustrated sensitivity specification information. It is a flowchart of a disaster prevention process.

  Hereinafter, an embodiment of an abnormality detection system according to the present invention will be described in detail with reference to the drawings. The present invention is not limited by the embodiment.

[Basic concept of the embodiment]
First, a basic concept of the embodiment will be described. The embodiment is an abnormality detection system that roughly detects an abnormality in a monitoring area, which is an area where a user is present, and includes a sleep determination unit that determines a user's sleep, and a monitoring area image that is an image of the monitoring area. An abnormality detection system comprising: an imaging unit configured to capture an image; and an abnormality detection unit configured to detect an abnormality in a monitoring area based on an imaging result of the imaging unit. The present invention relates to an abnormality detection system for changing a state for detecting an abnormality in a monitoring area.

  Here, the “abnormality detection system” is a system that detects an abnormality in a monitoring area, and is configured by a plurality of devices or a single device. This is a concept that includes a disaster prevention system that is a system for security and a security system that is a system for crime prevention. In addition, the “abnormality detection system” may be configured as being incorporated in a device, furniture, or bedding provided around the user when the user sleeps, or may be provided around the user. It may be newly configured as a device, for example, a terminal device such as a smartphone, a cradle of the smartphone, a bed, a pillow, a futon, an alarm clock, around an alarm clock (including a digital clock around a bedside of a business hotel), Alternatively, it may be configured as being incorporated in an air purifier or the like, or may be newly configured as a user terminal device which is a device provided around the user.

  Further, the “monitoring area” is an area that is monitored by the abnormality detection system and is an area where a user exists, and specifically, is a space having a certain extent, for example, The concept includes a bedroom, a living room, and the like of a building. Further, “abnormality of the monitoring area” is a state in which the state of the monitoring area is different from the normal state, and specifically, is a concept including a fire occurrence, intrusion of a suspicious person, and the like.

  Further, “determining about the user's sleep” means performing a determination regarding the user's sleep, and specifically, determining whether or not the user is sleeping, and determining the user's sleep state (specifically, Specifically, the concept includes determining sleep depth).

  Further, "changing the state for detecting an abnormality in the monitoring area" means changing the state of the abnormality detection means. Specifically, the state in which the abnormality detection means operates and the abnormality detection means This is a concept that includes changing from one state to the other state, changing the sensitivity for detecting an abnormality, and the like, between the state where does not operate. The “sensitivity for detecting an abnormality” indicates the ease with which an abnormality can be detected.

  In the embodiment described below, the “abnormality detection system” is a “single device” and is a “disaster prevention terminal as a disaster prevention system” incorporated in a “terminal device”, and the “monitoring area” is “bedroom”. And the case where the "abnormality of the monitoring area" is "fire occurrence".

(Constitution)
First, the configuration of the disaster prevention terminal according to the present embodiment will be described. FIG. 1 is a diagram illustrating a disaster prevention terminal provided in a monitoring area according to the present embodiment, and FIG. 2 is a block diagram illustrating the disaster prevention terminal. The disaster prevention terminal 100 is an abnormality detection system, and roughly includes a communication unit 1, a touchpad 2, a display 3, a speaker 4, a camera 5, an irradiation unit 6, a recording unit 7, and a control unit 8.

(Configuration-Communication unit)
The communication unit 1 is a communication unit that communicates with a disaster prevention center (not shown) via a network, and is an abnormality alarm unit that issues an alarm about an abnormality. In particular, a fire alarm unit that issues an alarm about a fire It is. Although the specific type and configuration of the communication unit 1 are arbitrary, for example, a known mobile wireless communication unit can be used.

(Configuration-Touchpad)
The touch pad 2 is an operation unit that receives various operation inputs from the user by being pressed by a user's finger or the like. The touch pad 2 is formed in a transparent or translucent shape, is provided on the front surface of the display 3 so as to overlap the display surface of the display 3, and is formed as a touch panel. As the touch pad 2, for example, a known touch pad provided with an operation position detecting unit based on a resistive method or a capacitive method can be used.

(Configuration-Display)
The display 3 is a display unit that displays various images based on the control of the control unit 8, which will be described later. The display 3 is an abnormality alarm unit that issues an alarm about an abnormality, and is particularly a fire alarm unit that issues an alarm about a fire. is there. The specific configuration of the display 3 is arbitrary. For example, a flat panel display such as a known liquid crystal display or an organic EL display can be used.

(Configuration-Speaker)
The loudspeaker 4 is an audio output unit that outputs information in voice based on the control of the control unit 8 described later, and is an abnormality alarm unit that issues an alarm about an abnormality. In particular, a fire alarm that issues an alarm about a fire Means. The specific form of the sound output from the speaker 4 is arbitrary, and a synthesized sound generated as necessary or a sound recorded in advance can be output.

(Configuration-Camera)
The camera 5 is an imaging unit that captures a monitoring area image that is an image of the monitoring area. The specific configuration of the camera 5 is arbitrary, and is configured to capture an image in a visible region, for example, and includes a known image sensor such as a CMOS sensor and an optical system including a known lens. can do.

(Configuration-Irradiation unit)
The irradiating unit 6 is an irradiating unit that irradiates light to the monitoring area to illuminate the monitoring area. In particular, the irradiating unit 6 illuminates an imaging area which is an area where the camera 5 takes an image. Note that the “imaging area” is an area where the camera 5 captures an image, and specifically, is an area arbitrarily determined based on a direction in which the camera 5 is directed, an angle of view of the camera 5, and the like. However, hereinafter, for example, a case will be described in which the camera 5 is directed to the ceiling of the bedroom, and at least a part of the ceiling is included in the “imaging area”. The specific configuration of the irradiating section 6 is arbitrary, and for example, can be configured to include a known light source such as an LED that outputs visible light.

(Configuration-recording unit)
The recording unit 7 is a recording unit that records programs and various data necessary for the operation of the disaster prevention terminal 100, and is configured using, for example, a hard disk (not shown) as an external recording device. However, in place of or in addition to the hard disk, a magnetic recording medium such as a magnetic disk, an optical recording medium such as a DVD or a Blu-ray disk, or an electric recording medium such as a Flash, a ROM, a USB memory, or an SD card. Any recording medium can be used.

  Further, the recording unit 7 stores sensitivity specifying information. The “sensitivity specifying information” is information for specifying “sensitivity for detecting an abnormality” in the disaster prevention terminal 100. As the “sensitivity specifying information”, any information can be used according to a method of detecting an abnormality in the disaster prevention terminal 100. For example, here, for example, “a method of detecting an abnormality in the disaster prevention terminal 100” Describes a technique in which a smoke diffusion range (hereinafter, smoke diffusion range) in a monitoring area image captured by the camera 5 is specified, and the specified “smoke diffusion range” is compared with a smoke diffusion range threshold described later. I do. FIG. 3 is a diagram illustrating sensitivity specifying information. As shown in FIG. 3, the sensitivity specifying information is configured by associating the item “sleep information”, the item “sensitivity information”, the item “smoke diffusion range threshold information”, and the information corresponding to each item with each other. Have been. Here, the information corresponding to the item “sleep information” is sleep information that specifies the depth of sleep (in FIG. 3, “sleep (light)” indicating that sleep is light, and “information indicating that sleep is deep”. Sleep (deep) "). The information corresponding to the item “sensitivity information” is sensitivity information that specifies the level of sensitivity for detecting abnormality (in FIG. 3, the sensitivity is lower than “low” or “low” indicating low sensitivity). Is "high" to indicate high.) The information corresponding to the item “smoke diffusion range threshold information” is information for specifying the smoke diffusion range threshold (in FIG. 3, the size (for example, the area when the monitoring area image is captured as two-dimensional) in FIG. 3). And “Ar1” and “Ar2”). In the following description, the units of “Ar1” and “Ar2” are, for example, square meters, and the area relationship is that “Ar1” is wider than “Ar2”. Here, the “smoke diffusion range threshold” is a threshold used for detecting (determining) the occurrence of a fire in the monitoring region, and is a “smoke diffusion range” specified in the monitoring region image captured by the camera 5 in FIG. ". Then, it is assumed that the sensitivity specifying information is input and stored using the touch pad 2.

(Configuration-control unit)
The control unit 8 in FIG. 2 is a control unit that controls the disaster prevention terminal 100. Specifically, the control unit 8 includes a CPU, various programs interpreted and executed on the CPU (a basic control program such as an OS, an OS, and the like). And an internal memory such as a RAM for storing programs and various data. In particular, the control program according to the embodiment substantially installs each unit of the control unit 8 by being installed in the disaster prevention terminal 100 via an arbitrary recording medium or a network.

  The control unit 8 includes a sleep determination unit 81 and an abnormality detection unit 82 functionally. The sleep determining unit 81 is a sleep determining unit that determines a user's sleep. Further, the abnormality detection unit 82 is an abnormality detection unit for detecting an abnormality in the monitoring area based on the imaging result of the camera 5, and is particularly a fire detection unit for detecting a fire in the monitoring area. The processing performed by each unit of the control unit 8 will be described later.

(processing)
Next, a disaster prevention process executed by the disaster prevention terminal 100 configured as described above will be described. FIG. 4 is a flowchart of the disaster prevention process (steps are abbreviated as “S” in the following description of each process). “Disaster prevention processing” is processing relating to disaster prevention, and specifically, processing for detecting a fire in the monitoring area. The timing of executing this disaster prevention process is arbitrary timing. For example, in a state where the power of the disaster prevention terminal 100 is turned on, it is assumed that the disaster prevention terminal 100 is activated and executed after the user performs an activation operation via the touch pad 2. The description starts from the point where the disaster prevention process is started. Also, as shown in FIG. 1, the disaster prevention terminal 100 is placed on the bed (specifically, at a position where the movement of a person lying on the bed is transmitted, and the disaster prevention terminal is described in SA1 and SA2 in FIG. 4 described later). It is an arbitrary position where a person's movement is transmitted to the terminal 100 and sleep can be appropriately determined, for example, is placed on a bedside), and the camera 5 and the irradiation unit 6 in FIG. Is directed toward the ceiling side of the bedroom (that is, the upward direction in the drawing of FIG. 1) (that is, the direction in which the camera 5 captures images is the ceiling side, and the direction in which the irradiation unit 6 irradiates (the direction in which light is output) is The following description is based on the assumption that the irradiation unit 6 does not emit light.

  First, as shown in FIG. 4, in SA1, the sleep determining unit 81 determines whether or not the user is sleeping. As a method of determining whether or not the user is sleeping, any method including a known method can be used. Here, for example, an acceleration detection unit (such as an acceleration sensor) for the disaster prevention terminal 100 in FIG. (Not shown), and a method of making a determination based on the detection result of the acceleration detecting means will be described below. Specifically, regarding the movement of the person transmitted to the acceleration detection unit of the disaster prevention terminal 100 via a bed or a futon, the movement when sleeping is the case where the person is awake (that is, not sleeping). Focusing on the fact that the movement is smaller than the movement of (case) and that the movement of the person becomes smaller as the sleep becomes deeper, it is determined whether or not the user is sleeping based on the detection result of the acceleration detecting means. . As for a specific method of “determining whether or not the user is sleeping based on the detection result of the acceleration detection unit”, a known method (for example, comparing the detection result of the acceleration detection unit with a reference value) , Etc.) can be used, and a detailed description thereof will be omitted. When it is determined that the user is not sleeping (NO in SA1), SA1 is repeatedly executed until it is determined that the user is sleeping. When it is determined that the user is sleeping (YES in SA1), the process proceeds to SA2.

  Returning to FIG. 4, in SA2, the sleep determination unit 81 determines whether the user's sleep is deep (non-REM sleep or REM sleep) as a determination of the user's sleep state (specifically, sleep depth). Is determined. As a method of determining the sleep state of the user, any method including a known method can be used. Here, for example, in the same manner as in the case of SA1, not shown of the disaster prevention terminal 100 in FIG. A description will be given below assuming that a determination method is used based on the detection result of the acceleration detection means. Specifically, regarding the movement of the person transmitted to the acceleration detection unit of the disaster prevention terminal 100 via a bed or a futon, the movement when sleeping is the case where the person is awake (that is, not sleeping). Focusing on the fact that the movement of the user is smaller than the movement of (case) and that the movement of the person becomes smaller as the sleep becomes deeper, it is determined whether or not the user's sleep is deep based on the detection result of the acceleration detecting means. . As for a specific method of “determining whether or not the user has a deep sleep based on the detection result of the acceleration detection unit”, a known method (for example, comparing the detection result of the acceleration detection unit with a reference value) , Etc.) can be used, and a detailed description thereof will be omitted. When it is determined that the user sleeps deeply (YES in SA2), the process proceeds to SA3. When it is determined that the user's sleep is not deep (that is, when it is determined that the user's sleep is light) (NO in SA2), the process proceeds to SA6.

  Returning to FIG. 4, in SA3, the abnormality detecting unit 82 sets the sensitivity. Specifically, referring to the sensitivity specifying information in FIG. 3, “smoke diffusion range threshold information” corresponding to the determination result of SA2 in FIG. 4 is obtained, and the obtained “smoke diffusion range threshold information” specifies. The "smoke diffusion range threshold value" is recorded and set in the recording unit 7 in FIG. More specifically, since “SA2 determination result” = “user's sleep is deep”, “smoke diffusion range threshold information” = “Ar2” corresponding to “sleep information” = “sleep (deep)” in FIG. Is acquired, and the acquired “smoke diffusion range threshold information” = “Ar2” specifies “smoke diffusion range threshold” = “Ar2”, which is recorded and set in the recording unit 7 of FIG.

  Returning to FIG. 4, in SA4, the abnormality detection unit 82 determines whether or not a fire has occurred (that is, detects a fire). Specifically, first, the irradiation unit 6 of FIG. 2 is irradiated with light, and while the irradiation unit 6 is irradiating light, the camera 5 is imaged. After the imaging of the camera 5 is completed, The irradiation of the light to the irradiation unit 6 is terminated. Next, the imaging result of the camera 5 (that is, the monitoring area image) is obtained, the “smoke diffusion range” in the obtained monitoring area image is specified as a two-dimensional area, and the area is set immediately near the recording unit 7. After acquiring the smoke diffusion range threshold, the specified “smoke diffusion range” is compared with the acquired smoke diffusion range threshold, and it is determined whether or not a fire has occurred based on the comparison result. If the specified “smoke diffusion range” exceeds the acquired smoke diffusion range threshold, it is determined that a fire has occurred (YES in SA4), and the process proceeds to SA5. If the specified “smoke diffusion range” does not exceed the acquired smoke diffusion range threshold, it is determined that a fire has not occurred (NO in SA4), and the process proceeds to SA1. Here, for example, a case where the “smoke diffusion range in the monitoring area image of the camera 5 in FIG. 2” is “Ar3” will be described as an example. In the following description, the unit of “Ar3” is, for example, square meters, and the area relationship is that “Ar3” is wider than “Ar2” and narrower than Ar1. In this case, “Ar3” is specified as the smoke diffusion range, and “Ar2” is obtained as the smoke diffusion range threshold set immediately adjacent to the recording unit 7, and then the specified smoke diffusion range and the obtained smoke diffusion range are set. By comparing with the range threshold value, it is determined that a fire has occurred because the specified smoke diffusion range “Ar3” exceeds the acquired smoke diffusion range threshold value “Ar2”. Thus, only when the SA4 is executed (specifically, when the camera 5 captures an image), by irradiating the light from the irradiating unit 6 in FIG. Therefore, it is not necessary to constantly supply power to the irradiation unit 6, and the power consumption of the disaster prevention terminal 100 can be reduced. In addition, for example, since the opportunity of irradiating the light with the irradiating unit 6 can be limited, it is possible to prevent the sleep of the user from being hindered by always brightening the inside of the bedroom.

  Returning to FIG. 4, in SA5, the control unit 8 issues a warning about the occurrence of a fire, and ends the process. The warning mode, which is a mode for performing a warning, is arbitrary as long as it is a mode that can ensure the safety of the user. Here, for example, using the communication unit 1, the display 3, and the speaker 4 of FIG. The following alarms shall be issued. Specifically, the communication unit 1 transmits, to the disaster prevention center, a transfer signal that is a signal for notifying that a fire has occurred. In addition, an image indicating that a fire has occurred or text information such as "a fire has occurred" is displayed via the display 3. In addition, voice information such as “a fire has occurred” is output via the speaker 4.

  In SA6 after it is determined that the user's sleep is not deep in SA2 in FIG. 4 (NO in SA2), the abnormality detection unit 82 sets the sensitivity. Specifically, referring to the sensitivity specifying information in FIG. 3, “smoke diffusion range threshold information” corresponding to the determination result of SA2 in FIG. 4 is obtained, and the obtained “smoke diffusion range threshold information” specifies. The "smoke diffusion range threshold value" is recorded and set in the recording unit 7 in FIG. More specifically, since “the determination result of SA2” = “the user's sleep is not deep”, “smoke diffusion range threshold information” corresponding to “sleep information” = “sleep (light)” in FIG. 3 = “ Ar1 ”is acquired, and the acquired“ smoke diffusion range threshold information ”=“ smoke diffusion range threshold ”=“ Ar1 ”specified by“ Ar1 ”is recorded in the recording unit 7 of FIG. 2 and set.

  In SA4 of FIG. 4 thereafter, the abnormality detection unit 82 determines whether a fire has occurred, as described above. Here, for example, as described above, the case where the “smoke diffusion range in the monitoring area image of the camera 5 of FIG. 2” is “Ar3” will be described as an example. In this case, "Ar3" is specified as the smoke diffusion range, and "Ar1" is obtained as the smoke diffusion range threshold value set immediately near the recording unit 7, and then the specified smoke diffusion range and the obtained smoke diffusion range are set. By comparing with the range threshold value, it is determined that no fire has occurred since the specified smoke diffusion range “Ar3” does not exceed the acquired smoke diffusion range threshold value “Ar1”. This ends the disaster prevention processing.

(Effects of Embodiment)
As described above, according to the present embodiment, by changing the state for detecting an abnormality in the monitoring area based on the determination result of the sleep determining unit 81, for example, the monitoring area may be considered in consideration of the user's sleep. Since the state for detecting the abnormality can be changed, the abnormality in the monitoring area can be quickly and reliably detected in consideration of the user's sleep. In particular, for example, when the user is sleeping, by changing the state for detecting an abnormality in the monitoring area so as to quickly detect a fire that is an abnormality in the monitoring area, the aforementioned “smoking fire” Can be detected immediately after the occurrence of "", and it is possible to prevent the user from inhaling toxic gas during sleep and causing toxic gas poisoning or the like.

  In addition, when it is determined that the user is sleeping, an abnormality in the monitoring area is detected, and when it is determined that the user is not sleeping, no abnormality is detected in the monitoring area. Is particularly high when the user is asleep, the abnormality in the monitoring area can be detected only when the user is sleeping, so that the power consumption of the disaster prevention terminal 100 can be suppressed, and the safety of the user can be ensured. Can be secured.

  In addition, since the irradiating unit 6 illuminates an imaging area, which is an area imaged by the camera 5, for example, it is possible to image an imaging target (for example, smoke or the like) of the camera 5 even in darkness. Can be reliably detected, and user safety can be reliably ensured.

  Further, by giving a warning about the abnormality, for example, it is possible to warn the user or the like of the abnormality in the monitoring area, so that the safety of the user can be more reliably ensured.

  Further, since the abnormality in the monitoring area is at least an abnormality relating to disaster prevention, for example, an abnormality relating to a disaster such as the occurrence of a fire can be detected quickly and reliably, so that safety in the monitoring area can be improved.

[Modification to Embodiment]
As described above, the embodiment according to the present invention has been described. However, the specific configuration and means of the present invention may be arbitrarily modified and improved within the technical idea of each invention described in the claims. Can be. Hereinafter, such modified examples will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the contents described above, and may differ depending on the implementation environment and details of the configuration of the invention. May be solved, or only a part of the effects described above may be achieved.

(About distribution and integration)
Further, the above-described configuration is conceptual in function, and does not necessarily need to be physically configured as illustrated. That is, the specific form of distribution and integration of each unit is not limited to the illustrated one, and all or a part thereof can be functionally or physically distributed or integrated in arbitrary units. The “system” in the present application is not limited to a system configured by a plurality of devices, but includes a system configured by a single device. The “device” in the present application is not limited to a device configured by a single device, but includes a device configured by a plurality of devices.

(About alarm (1))
Further, in the above-described embodiment, the case where the alarm is performed using the communication unit 1, the display 3, and the speaker 4 in FIG. 2 in SA5 in FIG. 4 has been described, but the present invention is not limited thereto. For example, the disaster prevention terminal 100 shown in FIG. 2 may be provided with a vibration function, and an alarm may be issued using vibration by the vibration function. Further, for example, an alarm may be issued by repeatedly and intermittently outputting light from the irradiation unit 6.

(About the alarm (part 2))
Further, at SA5 in FIG. 4, the disaster prevention terminal 100 in FIG. 2 may issue an alarm in conjunction with another device. Specifically, the monitoring area is a plurality of rooms in a house, and each of the plurality of rooms is provided with a known fire alarm for a house that operates in conjunction with each other. In conjunction with the residential fire alarm, a warning may be issued to a room where the disaster prevention terminal 100 is provided or a room where the disaster prevention terminal 100 is not provided. In addition, it is assumed that a notification device which is a device for notifying the abnormality of the monitoring area to the outside is provided, and the disaster prevention terminal 100 issues an external alarm in conjunction with the notification device (that is, via the notification device). Is also good.

(About the alarm (part 3))
In addition, the warning performed in SA5 of FIG. 4 may be configured to be able to change the warning mode. Specifically, the warning mode may be changed based on the determination result of sleep determining section 81. For example, even when executing SA5, the determination of SA2 is repeatedly performed, and when “the determination result of SA2” = “the user's sleep is not deep” (hereinafter, light sleep), “the determination result of SA2” In the case of "=" the user sleeps deeply "(hereinafter, the case of deep sleep), the alert modes may be different from each other. More specifically, for example, in consideration of the fact that the sleeping user does not easily wake up despite the warning, a predetermined time (for example, 20 seconds) elapses after the warning is performed. In the case of “light sleep” or “deep sleep”, the volume of the audio information output from the speaker 4 in FIG. 2 is increased, or “(alarm (Part 1)), an extended warning such as changing the vibration pattern by the vibration function may be performed. In addition, for example, from the viewpoint of issuing an appropriate alarm according to the state of sleep and preventing noise to the neighborhood, in the case of “deep sleep” and “case of light sleep”, the speaker 4 of FIG. An alarm may be issued so that the volume of the audio information output from is gradually reduced (that is, an alarm is issued so that the volume of “deep sleep” is larger than the volume of “light sleep”). May be done).

(About the sleep judgment unit)
Further, in the above-described embodiment, the case where sleep is determined based on the detection result of the acceleration detection unit in SA1 and SA2 in FIG. 4 has been described, but the present invention is not limited to this. For example, a biological information detection function, which is a function of detecting a user's snoring sound, pulse, or respiratory rate during sleep, is provided in the disaster prevention terminal 100 of FIG. 2, and a detection result of the biological information detection function is used. , Sleep may be determined. Further, for example, by observing the movement of the user's chest using radio waves including microwaves and the like, the respiration rate or respiratory state of the user may be specified based on the observation result, and the determination may be made based on the specified result. .

(About irradiation part and camera)
In addition, the irradiation unit 6 in FIG. 2 of the above-described embodiment includes a light source that outputs visible light (for example, an LED that outputs visible light), but is not limited thereto. For example, the irradiation unit 6 outputs light other than visible light (for example, infrared light) instead of the light source that outputs visible light according to the embodiment, or together with the light source that outputs visible light according to the embodiment. A light source may be provided. In such a configuration, the camera 5 of FIG. 2 may be configured to be able to take an image of a region other than the visible region (for example, an infrared region) instead of the visible region or together with the visible region.

(About each step of disaster prevention processing)
Further, in the disaster prevention process of FIG. 4 of the above embodiment, some processes may be omitted, changed, or newly added. Specifically, after SA5, a step of determining whether or not to recover (hereinafter, a recovery determination step) and a step of recovering (hereinafter, a recovery execution step) may be provided. Then, in the “restoration determination step”, the control unit 8 of FIG. 2 determines whether or not a predetermined operation input for recovery has been input by the user with respect to the touch pad 2. The “recovery determination step” may be repeatedly executed until an input is made, and when the input is made, the process may shift to a “recovery execution step”. In the “recovery execution step”, the control unit 8 in FIG. 2 may perform the recovery by stopping the alarm performed in SA5 in FIG.

  Also, in FIG. 4, a fire may be detected even when “SA1 determination result” = “the user is not sleeping”. Specifically, after “NO” of SA1 in FIG. 4, after setting “smoke diffusion range threshold” wider than “Ar1” in FIG. 3, SA4 may be executed.

  Also, in FIG. 4, a fire may be detected only when “the determination result of SA2” = “the user's sleep is deep”. More specifically, the process may proceed to SA1 after NO in SA2 in FIG.

(About sensitivity setting)
Further, in the above embodiment, the case where the sensitivity for detecting an abnormality is changed by changing the smoke diffusion range threshold used in SA4 in FIG. 4 is described, but the present invention is not limited to this. For example, the "smoke diffusion range" used in SA4 is multiplied by a predetermined coefficient, and the multiplication result is compared with a certain smoke diffusion range threshold value. The sensitivity may be changed by adjusting the value (a number greater than 0) of the “predetermined coefficient” after the configuration is determined. Specifically, when increasing the sensitivity, “predetermined coefficient” = “number greater than 1”, and when decreasing the sensitivity, “predetermined number” = “greater than 0 and greater than 1”. A "small number" may be used. In addition, for example, when a fire is detected by comparing a color density included in a monitoring area image captured by the camera 5 with a predetermined reference density, “the image is included in the monitoring area image. The sensitivity may be changed by changing the "color density" or the reference density. Further, for example, in the monitoring area image captured by the camera 5, the color density of a portion corresponding to smoke and the color density of a portion corresponding to other than smoke (that is, a background portion) are compared. When a fire is detected by comparing these “differences in density” with a predetermined reference value, the sensitivity is changed by changing the “difference in density” or the reference value. You may. Further, for example, a color included in the monitoring area image captured by the camera 5 is compared with a reference color (for example, gray or red) and based on whether or not these colors match. When a fire is detected by changing the color, the sensitivity may be changed by changing the “color included in the monitoring area image” or the reference color.

(About application to other devices, etc.)
Further, the concept of the above embodiment may be applied to devices other than the “terminal device”. Specifically, all parts of the disaster prevention terminal 100 in FIG. 2 may be connected to a cradle, a bed, a pillow, a futon, an alarm clock, around an alarm clock (including around a digital clock at a bedside of a business hotel) or an air purifier. Equipment (hereinafter referred to as "smartphone cradle, bed, pillow, futon, alarm clock, alarm clock peripheral (including digital clock around business hotel bedside), or air purifier, etc." , Etc.) may be provided for only one target, or may be provided for a plurality of targets arbitrarily selected from “user's peripheral devices, etc.”. An arbitrary function selected from the above may be distributed and provided to a plurality of objects arbitrarily selected from “user's peripheral device or the like”.

  In addition, after providing at least one function of each unit of the disaster prevention terminal 100 in “user peripheral device or the like”, a function other than the “at least one function” of each unit of the disaster prevention terminal 100 is referred to as “user (E.g., an object provided at a position distant from the user (specifically, an alarm that has been used in the past, and an alarm set on a ceiling or a wall, etc.) In addition, at least the camera 5 shown in Fig. 2 may be provided in the "user's peripheral device or the like" as the "at least one function". When the user sleeps, the camera 5 can be provided around the sleeping user, for example, because the camera 5 is incorporated in a device, furniture, or bedding provided around the user when the user sleeps. Abnormality surrounding the user in the can more quickly detect.

  In addition, at least the abnormality detection unit of the disaster prevention terminal 100 of FIG. 2 is compared with a conventionally used alarm device that is set on a ceiling or a wall (hereinafter, “conventional alarm device”). A function similar to that of the disaster prevention terminal 82 is provided, and the abnormality detection unit 82 is omitted from the disaster prevention terminal 100 in FIG. 2 (the disaster prevention terminal 100 from which the abnormality detection unit 82 is omitted is referred to as a “modification disaster prevention terminal”) After having been configured to be able to communicate with the “conventional alarm device” and the “disaster prevention terminal of the modified example” of FIG. 2, after SA1 and SA2 of FIG. The “conventional alarm device” may perform the same processing as SA3 to SA6 by controlling the “conventional alarm device” by the “disaster prevention terminal of the modified example” based on the results of SA1 and SA2. Good.

(About application for security purposes)
Further, the security terminal may be configured after each configuration of the disaster prevention terminal 100 in FIG. 2 is changed so that an abnormality related to security can be detected. Specifically, it may be configured as an approach detection terminal that detects intrusion of a suspicious person into the monitoring area as an abnormality in the monitoring area. In this case, the abnormality detection unit 82 in FIG. 2 may detect intrusion of a person based on the monitoring area image captured by the camera 5. With such a configuration, it is possible to quickly and reliably detect an abnormality related to crime prevention such as intrusion of a suspicious person, and thus it is possible to improve security in the monitoring area.

(About features)
Further, the configuration of the above-described embodiment and the features of the modified examples may be arbitrarily combined.

(Note)
The abnormality detection system according to Supplementary Note 1 is an abnormality detection system that detects an abnormality in a monitoring area, which is an area where a user exists, and a sleep determination unit that determines the sleep of the user, and a monitoring area that is an image of the monitoring area. An imaging unit that captures an image, and an abnormality detection unit that detects an abnormality in the monitoring area based on an imaging result of the imaging unit.The abnormality detection unit includes a determination result of the sleep determination unit. A state for detecting an abnormality in the monitoring area is changed based on the state.

  The abnormality detection system according to Supplementary Note 2, wherein in the abnormality detection system according to Supplementary Note 1, the sleep determination unit determines whether the user is sleeping, and the abnormality detection unit determines that the sleep determination unit determines that the user is sleeping. If it is determined that the user is not sleeping, the abnormality of the monitoring area is not detected, and if the sleep determination unit determines that the user is sleeping, the abnormality of the monitoring area is detected.

  The abnormality detection system according to appendix 3 is the abnormality detection system according to appendix 1 or 2, further comprising an irradiating unit that illuminates an imaging area that is an area imaged by the imaging unit.

  The abnormality detection system according to appendix 4, in the abnormality detection system according to any one of appendices 1 to 3, further comprising: an abnormality alarm unit that issues an alarm based on a detection result of the abnormality detection unit.

  The abnormality detection system according to Appendix 5 is the abnormality detection system according to Appendix 4, wherein the abnormality warning means can change a warning mode.

  The abnormality detection system according to Supplementary Note 6, wherein in the abnormality detection system according to any one of Supplementary Notes 1 to 5, at least the imaging unit includes a device, furniture, or furniture provided around the user when the user sleeps. Built into bedding.

  The abnormality detection system according to attachment 7 is the abnormality detection system according to any one of attachments 1 to 6, wherein the abnormality in the monitoring area is at least an abnormality relating to disaster prevention or crime prevention.

(Effect of additional notes)
According to the abnormality detection system described in Supplementary Note 1, by changing the state for detecting an abnormality in the monitoring area based on the determination result of the sleep determining means, for example, the monitoring area may be considered in consideration of the user's sleep. Since the state for detecting the abnormality can be changed, the abnormality in the monitoring area can be quickly and reliably detected in consideration of the user's sleep. In particular, for example, when the user is sleeping, by changing the state for detecting an abnormality in the monitoring area so as to quickly detect a fire that is an abnormality in the monitoring area, the aforementioned “smoking fire” Can be detected immediately after the occurrence of "", and it is possible to prevent a sleeping user from inhaling toxic gas and causing toxic gas or the like.

  According to the abnormality detection system described in Supplementary Note 2, when it is determined that the user is sleeping, an abnormality in the monitoring area is detected, and when it is determined that the user is not sleeping, the abnormality in the monitoring area is detected. Is not detected, for example, it is possible to detect an abnormality in the monitoring area only when the user is sleeping, which is particularly necessary to ensure safety, so that power consumption in the disaster prevention terminal can be suppressed. Therefore, the safety of the user can be reliably ensured.

  According to the abnormality detection system described in Supplementary Note 3, the irradiating unit illuminates the imaging region, which is the region imaged by the imaging unit, so that the imaging unit captures an image of an imaging target (eg, smoke) even in the dark. Therefore, it is possible to reliably detect an abnormality in the monitoring area, and to ensure the safety of the user.

  According to the abnormality detection system described in Supplementary Note 4, by issuing a warning about the abnormality, for example, it is possible to warn the user or the like of the abnormality in the monitoring area, so that the safety of the user can be further ensured. it can.

  According to the abnormality detection system described in Supplementary Note 5, since the alarm mode can be changed, for example, the sleeping user can be woken up (awakened), so that the safety of the user can be further improved. It can be ensured more reliably.

  According to the abnormality detection system described in Supplementary Note 6, the imaging unit is incorporated in a device, furniture, or bedding provided around the user when the user sleeps, so that, for example, the imaging unit is sleeping. Therefore, an abnormality around the user in the monitoring area can be detected more quickly.

  According to the abnormality detection system described in Supplementary Note 7, the abnormality in the monitoring area is at least an abnormality related to disaster prevention or crime prevention. For example, an abnormality related to disaster such as fire occurrence or an abnormality related to crime prevention such as intrusion of a suspicious person. Can be detected quickly and reliably, so that safety and security in the monitoring area can be improved.

DESCRIPTION OF SYMBOLS 1 Communication part 2 Touch pad 3 Display 4 Speaker 5 Camera 6 Irradiation part 7 Recording part 8 Control part 81 Sleep determination part 82 Abnormality detection part 100 Disaster prevention terminal

Claims (5)

An abnormality detection system that detects an abnormality in a monitoring area, which is an area where a user exists,
Sleep determining means for determining whether or not the user sleeps, and which of the plurality of predetermined sleep states the user sleeps ;
Imaging means for capturing a monitoring area image that is an image of the monitoring area;
An abnormality detection unit for detecting an abnormality in the monitoring area based on an imaging result of the imaging unit,
The abnormality detection unit changes sensitivity for detecting an abnormality in the monitoring area according to a determination result of the sleep determination unit.
Anomaly detection system. The abnormality detection unit detects an abnormality in the monitoring region based on the monitoring region image captured by the imaging unit and a predetermined smoke diffusion range threshold,
The abnormality detection unit changes the smoke diffusion range threshold according to the determination result of the sleep determination unit, thereby changing the sensitivity of detecting an abnormality in the monitoring region.
The abnormality detection system according to claim 1. An alarm unit that issues an alarm when the abnormality detection unit detects an abnormality in the monitoring area,
According to the determination result of the sleep determining means, changing the mode of the alarm by the alarm means,
The abnormality detection system according to claim 1. An abnormality detection system that detects an abnormality in a monitoring area, which is an area where a user exists,
  Sleep determining means for determining whether or not the user sleeps, and which of the plurality of predetermined sleep states the user sleeps;
Imaging means for capturing a monitoring area image that is an image of the monitoring area;
An abnormality detection unit for detecting an abnormality in the monitoring area based on an imaging result of the imaging unit;
Alarm means for alarming when the abnormality detection means detects an abnormality in the monitoring area,
The alarm unit changes the mode of the alarm according to the elapsed time from the start of the alarm and the determination result of the sleep determining unit at the time when the elapsed time has elapsed.
Anomaly detection system. The plurality of sleep states determined by the sleep determination means include a light sleep state and a deep sleep state,
The abnormality detection system according to claim 1.

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