JP2019079278A - Alarm and alarm system - Google Patents

Abstract

To provide an alarm and alarm system capable of more accurately deciding on existence of a survivor in need of help in the event that a building is destroyed, and notifying the outside of the fact.SOLUTION: A gas leakage alarm 10 gives the alarm in the event that an abnormal state takes place in a monitoring area in a building, and includes a built-in camera 11a that images the inside of a room in which a monitoring area exists, a destruction decision unit 15 that decides whether a building is in a destroyed state, and a notification unit 18 that, when it is decided based on data of the image taken by the built-in camera 11a that someone is at home, if the destruction decision unit 15 decides that the building is in the destroyed state, notifies the fact that a survivor in need of help exists.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an alarm and an alarm system.

  Conventionally, houses may collapse in disasters such as earthquakes, typhoons, tsunamis, landslides, and residents may not be able to escape and need to be rescued, and in order to support the rescue of such a person, the rescuer of A rescue signal generator for informing the existence has been proposed (see Patent Document 1).

Patent No. 5847174 gazette

  However, in the rescue signal generating device described in Patent Document 1, when it is determined that the building has collapsed, the microphone collects surrounding sounds to determine the presence or absence of the rescuer, so vocalization due to fainting or severe injury. When it is difficult, it can not be detected.

  The present invention has been made to solve such conventional problems, and an object of the invention is to more reliably determine the presence of a rescuer and notify it to the outside when a building collapses. It is possible to provide a possible alarm and alarm system.

  The alarm device according to the present invention is an alarm device which issues an alarm to that effect when it is judged that an abnormal state has occurred in a monitoring area in a building, and an imaging means for imaging the inside of a room in which the monitoring area exists. The collapse determination means for determining whether the at-home person is present from the collapse determination means for determining whether the building is in a collapse state and the data of the captured image captured by the imaging means; And the notification means for notifying that the rescuer is present.

  According to this alarm device, an imaging means for imaging the inside of the room where the monitoring area is present is provided, and it is necessary to rescue at the time of the building collapse in order to determine whether at-home persons exist from the data of the imaged image imaged by the imaging means. Even if a person suffers from vomiting or serious injuries, it is possible to detect the presence of the rescuer, and to more reliably determine the presence of the rescuer and notify it to the outside.

  In the alarm device of the present invention, the alarm device further includes a second imaging unit that images the inside of the room outside the area where the monitoring area is present, and a communication unit that receives data of the imaged image from the second imaging unit. When it is determined that the at-home person exists from the data of the captured image captured by the imaging device or the second imaging device, the notification device determines that the building is in a collapsed state by the collapse determination device. It is preferable to notify that a rescuer is required.

  According to this alarm device, the monitoring area includes the second imaging means for imaging the inside of the room outside the area where the monitoring area exists, and uses the data of the captured image from the second imaging means to determine the at-home person. Even when the resident moves to the outside room, the home presence of the resident can be determined, and the presence of the rescuer can be determined more reliably and notified to the outside.

  Further, in the alarm system according to the present invention, the alarm unit described above in which the communication unit is configured to be able to transmit data of the captured image externally, and the data of the imaged image transmitted by the communication unit of the alarm unit And an external device having at-home person determination means for determining the presence or absence of at-home persons, the alarm device receives the determination result by the at-home person determination means of the external device, and the notification means receives When it is determined from the determination result that at-home persons are present, when it is determined by the collapse determination means that the building is in a collapsed state, it is reported that the person in need of rescue is present.

  According to this alarm system, the alarm device is configured to be able to transmit the data of the captured image to the outside, and the external device is provided with the at-home determination means to determine the presence or absence of the at-home person. It is not necessary to install hardware that performs high processing in the alarm, and it is possible to suppress the increase in price and size of the alarm.

  In addition, collapse here is not only the case where a building completely destroys, but it is a concept including the half destruction that a wall surface becomes oblique. In the case of the half break, the door and the window of the building may not be opened, and in the case of the half break, the bookshelf and the cupboard may fall down, and the need for rescue may arise.

  According to the present invention, it is possible to provide an alarm and alarm system capable of more reliably determining the presence of a rescuer and notifying the outside when the building collapses.

It is a block diagram showing an alarm system concerning an embodiment of the present invention. It is a block diagram which shows the gas leak alarm device shown in FIG. It is a flow chart which shows a part of processing of an alarm system concerning this embodiment. It is a flowchart which shows the process by the gas leak alarm device of the alarm system which concerns on this embodiment.

  Hereinafter, the present invention will be described according to preferred embodiments. The present invention is not limited to the embodiments described below, and can be modified as appropriate without departing from the spirit of the present invention. Also, in the embodiment shown below, there are places where illustration and explanation of a part of the configuration is omitted, but the details of the omitted technique are within the range where the contradiction does not occur with the contents described below. Needless to say, well-known or well-known techniques are applied as appropriate.

  FIG. 1 is a block diagram showing an alarm system according to an embodiment of the present invention. As shown in FIG. 1, the alarm system 1 is a system for notifying the outside of the need for a rescuer when a building collapses (including not only complete destruction but also partial destruction), a gas leak alarm (alarm Device 10 and an external server (external device) 20.

  The gas leak alarm 10 issues an alarm to that effect when it is determined that an abnormal state (for example, high concentration abnormality of fuel gas or carbon monoxide gas) has occurred in a monitoring area MA (for example, kitchen) in a building It is. The external server 20 communicates with the gas leak alarm device 10, and provides support when determining the presence or absence of the rescuer.

  FIG. 2 is a block diagram showing the gas leak alarm 10 shown in FIG. The gas leak alarm 10 includes a plurality of cameras (imaging means, second imaging means) 11, a communication unit (communication means) 12, an energization judging unit 13, an acceleration sensor 14, and a collapse judging unit (collapsing judgment unit). A rescuer determination unit 16, a notification control unit 17, a notification unit (notification unit) 18, and a built-in power supply 19 are provided.

  As shown in FIGS. 1 and 2, the plurality of cameras 11 includes a built-in camera (imaging unit) 11a incorporated in the housing 10a and a plurality of external cameras (second imaging unit installed outside the housing 10a) ) And 11b. The built-in camera 11a picks up an image of the inside of the room H1 including the monitoring area MA such as a kitchen, and transmits the data of the picked up image to the communication unit 12. The plurality of external cameras 11b are for imaging the inside of the room H2 outside the room H1 in which the monitoring area MA is present. Also, the plurality of external cameras 11b have an antenna A1. Furthermore, the communication unit 12 has an antenna A2. The plurality of external cameras 11b are configured to transmit data of a captured image to the communication unit 12 by wireless communication using the antennas A1 and A2.

  Although the built-in camera 11a is built in the housing 10a, the present invention is not limited to this. The built-in camera 11a may be provided outside the housing 10a as long as it can pick up an inside of the room H1 including the monitoring area MA.

  The communication unit 12 receives data of a captured image from the external camera 11 b. Furthermore, the communication unit 12 also functions as a unit that communicates with the external server 20. The communication unit 12 is configured to transmit data of a captured image from the built-in camera 11 a and data of a captured image from the external camera 11 b to the external server 20.

  Here, as shown in FIG. 1, the external server 20 includes a at-home person judging unit (at-home person judging means) 21. The at-home person determination unit 21 determines the presence or absence of the at-home person based on the data of the captured image transmitted from the communication unit 12 of the gas leak alarm 10. The home-at-home determination unit 21 roughly determines the presence or absence of a home-based person by two methods.

  First, the at-home person determination unit 21 determines the presence or absence of a home person by specifying a moving object from a plurality of captured images regarding the same room. There are various methods for identifying a moving object, but the at-home person determination unit 21 according to the present embodiment performs binarization or edge detection on data of a captured image, for example, A moving object is identified by comparing edge detection results. If it is determined that there is no moving object, it is determined that no at-home person is present. If it is determined that a moving object exists, it is determined whether the moving object is a person. Whether it is a person or not is determined from the size of a moving object on an image or the like. The at-home person determination unit 21 determines that there is an at-home person when it is determined that the person is a person.

  Second, the at-home person judging unit 21 determines the at-home person who hardly stopped moving, for example, sitting in a chair or lying on a bed, even if it is determined that there is no moving object. Execute the process That is, when the at-home person determination unit 21 determines that the at-home person is from the plurality of captured images in the past enters the rooms H1 and H2 and then stops, the at-home person again moves (or starts moving to move the room H1, H2. Continue to determine that there are at-home persons). That is, in such a case, the at-home person determination unit 21 determines that the at-home person is present and fixes the determination.

  Note that, as shown in FIG. 1, the external server 20 is also provided with the notification unit 22. Therefore, the at-home person determination unit 21 measures the fixed time by determining that there is an at-home person, and when it is determined that the measurement time is longer than a predetermined time (for example, 24 hours), the body of the at-home person has an abnormality. It may be determined that In this case, the reporting unit 22 of the external server 20 may notify a registered person (for example, a family or a relative) or a predetermined organization (for example, a fire or emergency) registered in advance.

  Further, it is preferable that the at-home person determination unit 21 can store or learn information on adjacent rooms H1 and H2 and information on entrances to adjacent rooms H1 and H2 in order to improve the determination accuracy of the presence or absence of at-home persons. When moving from a specific room H1, H2 to an adjacent room H1, H2, the moving object disappears from the data of the captured image of the specific camera 11, and the data of the captured image of the camera 11 in the adjacent rooms H1, H2 disappears. The moving object will appear. The at-home person determination unit 21 determines the adjacent rooms H1 and H2 from each other based on the relationship between the disappearance and the appearance of the object, and determines the entrance / exit from the disappearance position and the appearance position of the object on the captured image. When the at-home person determination unit 21 stores or learns the information of the adjacent rooms H1 and H2 and the information at the entrance of the adjacent rooms H1 and H2, the at-home person is about the data of the new captured image based on the information Can move to the adjacent rooms H1 and H2. That is, even if the at-home person does not appear in the adjacent rooms H1 and H2 even though the at-home person passes through the entrance from the data of the captured image in the specific rooms H1 and H2, the at-home person judging unit 21 There is also a possibility that the curtain is closed and the shadow of some object disappears, and it is determined that the object which has been determined to be at home is not at home. In addition, it is possible to store the shape of an object that is erroneously determined to be a home-based person, and not to determine as a home-based person even if an object similar to the stored object is detected (for example, edge detection) in the future.

  The at-home person determination unit 21 transmits information on the presence or absence of the at-home person to the communication unit 12 of the gas leak alarm 10. Therefore, the at-home person determination unit 21 transmits the at-home person information to the communication unit 12 when it is determined that there is an at-home person, and when it is determined that there is no at-home person, the at-home person information is not Transmit to the communication unit 12.

  Please refer to FIG. The energization determination unit 13 determines whether power is supplied to the gas leak alarm 10 from the outside (commercial power supply). The energization determination unit 13 determines whether or not it is in the energized state by detecting the voltage or current at the connection line connected to the commercial power supply. In addition, the energization determination unit 13 transmits, to the collapse determination unit 15, a determination result as to whether or not it is in the energized state.

  When the power is not supplied, the built-in power supply 19 built in the gas leak alarm 10 functions so that the entire function of the gas leak alarm 10 is not stopped. That is, it is possible to determine that the state is not in the energized state without stopping the process in the energization determination unit 13.

  The acceleration sensor 14 detects an acceleration applied to itself, and in this embodiment, is a three-axis acceleration sensor capable of detecting an acceleration in three axial directions. The acceleration sensor 14 detects acceleration (gravity) in the lower direction of the gas leak alarm 10 when there is no collapse or the like in the building when the gas leak alarm 10 is attached to the wall surface.

  The collapse determination unit 15 determines whether the building is in a collapsed state (a state including not only a complete destruction but also a partial destruction). In the present embodiment, the collapse determination unit 15 determines whether the state is the collapse state based on the determination result by the energization determination unit 13 and the signal from the acceleration sensor 14. Here, in the case of a disaster such as a building collapse, there is a tendency for the wall to be inclined and to have a power failure. For this reason, the collapse determination unit 15 determines whether it is in a collapsed state based on whether a power failure occurs (is in a power outage state) and whether the wall surface is inclined.

  In addition, it is preferable that the collapse determination unit 15 does not determine whether the state is the collapse state only by the determination result by the energization determination unit 13. It is for preventing judging that it is a collapse state when a temporary power failure or a breaker falls in electrical construction.

  Further, the collapse determination unit 15 calculates the angle of the wall based on the signal from the acceleration sensor 14, and it is predicted that the calculated angle is so inclined that the building can not be maintained (full collapse angle (for example, 20 °) or more) If it is inclined), it may be determined that the vehicle is completely destroyed regardless of the determination result by the energization determination unit 13.

  Furthermore, the collapse determination unit 15 determines that the power supply determination unit 13 is a power failure even if the wall surface angle is inclined at a predetermined angle (for example, 5 °) or more and less than the total collapse angle based on the signal from the acceleration sensor 14. When determined, it may be determined that the vehicle is completely destroyed. In this case, the collapse determination unit 15 determines that the wall surface angle is a predetermined angle (for example, 5 °) or more and less than the total destruction angle, and the conduction determination unit 13 determines that the wall surface is in a partially broken state You may

  The rescuer determination unit 16 is required to be in the collapsed building based on the determination result of the presence or absence of the at-home person received by the communication unit 12 and whether or not the collapse determination unit 15 determines that it is the collapsed condition. It is to judge whether a rescuer exists. That is, the rescuer determination unit 16 determines that the rescuer is present in the collapsed building when it is determined that a home worker is present and the building is in a collapsed state.

  The notification control unit 17 controls the notification unit 18 to notify that the rescuer is present when it is determined by the rescuer determination unit 16 that the rescuer is present in the collapsed building. . The notification unit 18 is configured by a voice output unit such as a buzzer or a speaker, and controls by the notification control unit 17 to notify that a rescuer is required, and can also warn of an abnormal state of the monitoring area MA. .

  The notification interval of the presence of the rescuer required may be changed based on the energized state determined by the energization determining unit 13. For example, the notification interval when it is determined that the power failure determination unit 13 does not have a power failure state may be shorter than the notification interval that is determined to be a power failure state. Because power is supplied by the built-in power supply 19 in a power failure state, it is preferable to lengthen the notification interval to reduce power consumption.

  FIG. 3 is a flowchart showing a part of the process of the alarm system 1 according to the present embodiment. As shown in FIG. 3, first, the communication unit 12 of the gas leak alarm 10 acquires data of a captured image from the built-in camera 11 a and the external camera 11 b (S 1), and transmits it to the external server 20 (S 2).

  Next, the at-home person determination unit 21 of the external server 20 performs, for example, binarization and edge detection on data of a plurality of captured images, and determines whether there is a home person (S3). If it is determined that there is a home-based person (S3: YES), the home-based person determination unit 21 transmits the result of the home-based person determination to the gas leak alarm 10 (S4). On the other hand, when it is determined that no at-home person is present (S3: NO), the at-home person determination unit 21 transmits the determination result indicating no at-home person to the gas leak alarm 10 (S5).

  Thereafter, the gas leak alarm 10 stores information of the determination result (S6). Then, the process illustrated in FIG. 3 ends.

  FIG. 4 is a flow chart showing processing by the gas leak alarm device 10 of the alarm system 1 according to the present embodiment. As shown in FIG. 4, the collapse determination unit 15 of the gas leak alarm 10 determines whether the building is in a collapsed state based on the determination result by the energization determination unit 13 and the signal from the acceleration sensor 14 (S11) . In this process, it is preferable that the collapse determination unit 15 determine whether the building is completely destroyed or partially broken.

  If it is determined that the building is not collapsed (S11: NO), the process shown in FIG. 4 ends. On the other hand, when it is determined that the building is in the collapsed state (S11: YES), the rescuer determination unit 16 determines whether the determination result of the presence of at-home persons has been transmitted from the external server 20 (S12). When it is determined that the determination result of presence of at-home person is not transmitted (S12: NO), the process illustrated in FIG. 4 ends.

  When it is determined that the determination result of presence of at-home person is received (S12: YES), the rescuer determination unit 16 transmits the information to that effect to the notification control unit 17, and the notification control unit 17 has a rescue person required Is notified from the notification unit 18 (S13).

  Next, the communication unit 12 transmits that the rescuer is required to the external server 20 (S14). At this time, the communication unit 12 may also transmit information as to whether it is completely destroyed or partially broken. Thereafter, the process shown in FIG. 4 ends.

  When the external server 20 receives the presence of the rescuer, the notification unit 22 notifies a registered person (for example, a family or a relative) or a predetermined organization (for example, a fire department or a rescue) registered in advance. This is because registrants and the like can go to rescue. In particular, when the information on whether the external server 20 is completely destroyed or half destroyed is received, the reporting unit 22 may also report this information. Thereby, for example, the degree of urgency will be notified to a predetermined organization, and it can be used for determination of the order of rescue in the case where a large number of rescuers are required in a disaster.

  Thus, according to the gas leak alarm 10 according to the present embodiment, the built-in camera 11a that captures the inside of the room H1 in which the monitoring area MA exists is provided, and the data of the captured image captured by the built-in camera 11a is at home Even if the rescuer needs to speak at the time of collapse of the building, it is possible to detect the existence of the rescuer even if it becomes difficult to speak because of a fainting or serious injury in order to judge the existence of the rescuer. It can be judged and informed to the outside.

  In addition, an external camera 11b is provided for imaging the inside of the room H2 outside the room H1 in which the monitoring area MA exists, and a room outside the monitoring area MA is determined in order to judge at-home persons using data of captured images from the external camera 11b. Even when the resident moves to H2, the home presence of the resident can be determined, and the presence of the rescuer can be determined more reliably and notified to the outside.

  Moreover, according to the alarm system 1 which concerns on this embodiment, the gas leak alarm 10 is comprised so that external transmission of the data of a captured image is possible, the external server 20 is equipped with the at-home person judgment part 21, and the external server 20 is a home person In the gas leak alarm 10, there is no need to install hardware that performs a high-impact process of home-based person determination in the gas leak alarm 10, and price increase and enlargement of the gas leak alarm 10 can be suppressed.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to the said embodiment, A change may be added in the range which does not deviate from the meaning of this invention. You may combine the techniques of

  For example, in the above embodiment, the communication unit 12 causes the cameras 11 (particularly the cameras in the rooms H1 and H2 in which the rescuer is present) to break down or the like even after notifying that the rescuer is present. If imaging is possible, data of the captured image may be transmitted to the external server 20 through the communication unit 12. In addition, the external server 20 may perform image analysis to determine whether the rescuer is in a movable state and is only confined in a building or is unable to move. This is because notification and notification including the degree of urgency can be further achieved by the notification and notification.

  Furthermore, in the above-described embodiment, when the data of the captured image from the external camera 11b is not transmitted, the communication unit 12 detects a failure and causes the notification unit 18 to notify or notify via the notification unit 22. It may be By this, it is possible to report and notify the failure, to solve the failure, and to prepare for a disaster.

  Furthermore, although the gas leak alarm 10 has been described as an example in the present embodiment, the present invention is not limited to this, and a fire alarm, a gas fire integrated alarm, a CO alarm, and other alarms may be used. In particular, since many security alarms originally include a camera, it is preferable to apply the present embodiment to the security alarm because the configuration can be made common. Moreover, not only the external server 20 but another external device such as an external PC may be used. Further, the external device may be a PC or the like in a building as long as it is an external device of the gas leak alarm 10.

  In addition, when the gas leak alarm device 10 according to the present embodiment is operated by the built-in power supply 19 without obtaining power from the commercial power supply, the power consumption is consumed when it comes to a state where the rescuer is required. From the viewpoint of suppressing the above, part or all of the judgment processing of the abnormal state in the monitoring area may be stopped.

1: Alarm system 10: Gas leak alarm (alarm)
11a: built-in camera (imaging means)
11b: External camera (second imaging means)
12: Communication unit (communication means)
13: conduction judgment unit 14: acceleration sensor 15: collapse judgment unit (collapsing judgment means)
16: Rescuer judgment unit 17: Notification control unit 18: Notification unit (notification means)
19: Built-in power supply 20: External server (external device)
21: At-home person judging section (at-home person judging means)
22: Report unit H1, H2: Room MA: Monitored area

Claims (3)

It is an alarm that gives an alarm to that effect when it is determined that an abnormal condition has occurred in a monitoring area in a building.
Imaging means for imaging the inside of a room in which the monitoring area is present;
Collapse determining means for determining whether the building is in a collapsed state;
When it is determined from the data of the captured image captured by the imaging unit that a home worker is present, when it is determined by the collapse determination unit that the building is in a collapsed state, notification that a rescue person is required is present Notification means for
An alarm characterized by comprising. A second imaging unit for imaging the inside of the room outside the area where the monitoring area is present;
The communication means for receiving the data of the captured image from the second imaging means;
The informing means determines that the building is in a collapsed state by the collapse determining means when it is determined that a home worker is present from data of a captured image captured by the imaging means or the second imaging means The alarm device according to claim 1, wherein it is informed that a rescuer is required. The alarm according to claim 2, wherein the communication unit is configured to be able to transmit data of a captured image externally;
And an external device having at-home determination means for determining presence or absence of an at-home person based on data of a captured image transmitted by the communication means of the alarm device.
The alarm receives a judgment result by the at-home person judging means of the external device,
The informing means informs that the rescuer is present when the collapse judging means judges that the building is in the collapsed state when it is judged that the at-home person exists by the received judgment result. An alarm system characterized by

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