Fire sign notification device and fire sign notification system

Abstract

To notify a person concerned outside a building of a factor of fire occurrence by detecting the factor as a sign of fire.SOLUTION: A fire sign notification device is installed in a room where a sign of fire is to be monitored. The fire sign notification device includes a thermal image sensor, a visible camera, a control section, and a communication section. The thermal image sensor acquires a temperature screen indicating temperature information in a predetermined range. The visible camera acquires a visible screen indicating a visible video in the predetermined range. The control section controls the fire sign notification device. The communication section performs communication with the outside. A position on the temperature screen and a position on the visible screen, which indicate the same position, are associated in the fire sign notification device. When a predetermined sign condition is satisfied on the temperature screen, the control section transmits the temperature screen, the visible screen, and information indicating the position on the visible screen associated with the position on the temperature screen satisfying the predetermined sign condition to a predetermined sign communication destination via the communication section.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a fire omen notification device and a fire omen notification system for preventing the occurrence of fires.

Background Art

[0002] As technologies for reporting fire omens, Patent Documents 1 to 3 and the like are known. These technologies detect omens from the situation of a plurality of sensor information (linked with other warning information such as heat, smoke, gas, etc.) in space.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, since the technologies of Patent Documents 1 to 3 are all highly likely to have already reached the stage of smoke generation and fire ignition, they are early fire detections rather than omen detections. Other patents, including non-residential fire omens, basically combine events occurring in a fire as fire omens, so they do not go beyond the scope of early fire detection.

[0005] In such early fire detections, if a healthy person notices the sound, they can perform initial fire extinguishing, escape, etc. However, when sleeping after drinking, in the case of the elderly, etc., if they do not notice the sound, it may cause "delayed escape". Also, when there is no one, the entire house is often damaged by fire, and not only can the property not be protected, but there is also a high possibility of spreading to surrounding houses. The object of the present invention is to detect the factors leading to the occurrence of a fire as a fire omen and notify the relevant parties outside the building.

Means for Solving the Problem

[0006] The fire omen notification device of the present invention is installed in a room for monitoring fire omens. The fire omen notification device includes a thermal image sensor, a visible camera, a control unit, and a communication unit. The thermal image sensor acquires a temperature screen indicating temperature information within a predetermined range. The visible camera acquires a visible screen indicating visible video within a predetermined range. The control unit controls the fire omen notification device. The communication unit communicates with the outside. In the fire omen notification device, the position on the temperature screen and the position on the visible screen indicating the same position are associated with each other. When the control unit satisfies a predetermined omen condition on the temperature screen, the control unit transmits, via the communication unit, information indicating the temperature screen, the visible screen, and the position on the visible screen corresponding to the position on the temperature screen that satisfies the predetermined omen condition to a predetermined communication destination for omens set in advance.

Effect of the Invention

[0007] According to the fire omen notification device of the present invention, since factors leading to a fire can be detected as fire omens, appropriate responses can be made before the fire occurs.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present invention will be described in detail. Note that components having the same function are denoted by the same reference numerals, and redundant descriptions are omitted.

Examples

[0010] FIG. 1 shows a functional configuration example of a fire omen notification system. The fire omen notification system 10 includes a fire omen notification device 100 and a data collection device 200 connected via a network 900. Further, a user terminal 300 may also be provided. The fire omen notification device 100 is installed in a room that monitors for signs of fire. The fire omen notification device 100 includes a thermal image sensor 110, a visible camera 120, a control unit 130, a communication unit 180, and a recording unit 190. Also, the fire omen notification device 100 may also include an alarm output unit 170, similar to a normal alarm device.

[0011] The thermal image sensor 110 acquires a temperature screen showing temperature information within a predetermined range. The "predetermined range" means the range (angle or area) included in the image captured from the position where the fire omen notification device 100 is installed, and may be interpreted as the range corresponding to the range of the room within the image captured by the thermal image sensor 110. The thermal image sensor 110 is a sensor that can acquire temperature information such as an infrared sensor. The thermal image sensor 110 may acquire a temperature screen including temperature information within a predetermined range from the captured image. Also, the fire omen notification device 100 may be installed so that the "predetermined range" includes the range where a fire may break out in the room.

[0012] The visible camera 120 acquires a visible screen showing visible video within a predetermined range. The "predetermined range" is the same as described above, meaning the range (angle or area) included in the image captured from the position where the fire omen notification device 100 is installed, or the range of the room where it is installed. The thermal image sensor 110 and the visible camera 120 can capture at least images within a predetermined range in the room. The visible camera 120 may acquire a visible screen including visible video within a predetermined range from the captured image.

[0013] In the fire omen notification device 100, the position on the temperature screen and the position on the visible screen indicating the same location are associated with each other. The "same location" means the same position in the room where the fire omen notification device 100 is installed. For example, when obtaining the temperature screen from the image captured by the thermal imaging sensor 110 and when obtaining the visible screen from the image captured by the visible camera 120, coordinate conversion may be performed so that the same coordinates indicate the same location respectively. Alternatively, information associating the coordinates may be recorded in the recording unit 190 so that the coordinates of the temperature screen and the coordinates of the visible screen indicating the same location are associated with each other. Or, the thermal imaging sensor 110 and the visible camera 120 may be arranged in the vicinity, and by making a hardware device so that the images captured show almost the same position in the room, the same position may be made the same display position on the user terminal 300 or the like. Furthermore, the above specific examples may be combined.

[0014] The control unit 130 controls the fire omen notification device 100. The communication unit 180 communicates with a predetermined external entity. When an event satisfying a predetermined omen condition is detected on the temperature screen, the control unit 130 transmits, via the communication unit 180, the temperature screen, the visible screen, and information indicating the position on the visible screen corresponding to the position on the temperature screen satisfying the predetermined omen condition to a predetermined communication destination for omens (hereinafter, this transmission is referred to as "omen notification"). Note that the visible camera 120 may be set to operate when a predetermined omen condition is satisfied on the temperature screen. This is a setting from the viewpoint of protecting privacy. Also, the predetermined omen condition may be set based on an instruction from the communication destination for omens.

[0015] When the alarm output unit 170 is also provided, an alarm may be output from the alarm output unit 170 at the same time. However, the output from the alarm output unit 170 may be when an alarm condition, which is a condition different from the omen condition, is satisfied. For example, for the output from the alarm output unit 170, the "predetermined alarm condition" may be set to a higher temperature than the "predetermined omen condition" and output when the risk level increases. Alternatively, an alarm may be output based on an instruction from the user terminal 300. When the control unit 130 satisfies a predetermined alarm condition, it may also transmit the information to a pre-set communication destination for alarms via the communication unit 180 (hereinafter, this transmission is referred to as "alarm notification").

[0016] In addition, the control unit 130 may also set a predetermined prevention condition based on the temperature screen and the visible screen. The "predetermined prevention condition" may be a condition for suppressing actions that lead to a fire. For example, the "predetermined prevention condition" may also consider the environment and human movement. When the control unit 130 satisfies a predetermined prevention condition, it may transmit the information to a pre-set communication destination for prevention via the communication unit 180 (hereinafter, this transmission is referred to as "prevention notification"). The communication destination for omens, the communication destination for prevention, and the communication destination for alarms may be the same or different from each other.

[0017] In determining the predetermined prevention condition, the control unit 130 performs a process of emphasizing the outline of the temperature screen based on the visible screen to obtain a temperature contour screen. Based on the temperature contour screen, it estimates the presence of moving people and the positions of objects that may be combustibles, and determines whether the predetermined prevention condition is satisfied. Fig. 2 shows an example of a temperature screen around an electric stove. Fig. 3 is a temperature contour screen obtained by performing a process of emphasizing the outline of the temperature screen based on the visible screen at the same location as the temperature screen in Fig. 2. Fig. 4 shows an example of a temperature screen around a stove. Fig. 5 is a temperature contour screen obtained by performing a process of emphasizing the outline of the temperature screen based on the visible screen at the same location as the temperature screen in Fig. 4. In the temperature contour screen, the outline of a person is also easy to distinguish, and the shapes of objects near the positions of the stove, cooker, etc. can also be recognized. From the shape, the possibility of combustibles such as laundry can be recognized.

[0018] The communication destinations for prediction, prevention, and warning (predetermined external destinations) with which the communication unit 180 communicates include the data collection device 200 managed by the service provider that provides the service. Further, the user terminals 300 may also be included in the communication destinations for prediction, prevention, and warning. The user may include not only the user who installs the fire prediction notification device 100 in the room but also family members who are concerned about the safety of the user. For example, the family members of an elderly user may be included as users.

[0019] The "prediction conditions" may be determined based on temperature, temperature change, the area indicating high temperature, area change, etc. As default prediction conditions, common prediction conditions may be set for the temperature screens of all the fire prediction notification devices 100. Then, the settings may be changed for each fire prediction notification device 100 or depending on the position on the temperature screen. For example, in the case of a user with a foot disability, in the event of an alarm after a fire breaks out, there may be a situation where sufficient time for early fire detection or escape cannot be secured. There may be a risk of detecting a temperature rise that does not actually result in a fire and, as a result, issuing a notification classified as a "false alarm." In such cases, it is necessary to set the prediction conditions for each fire prediction notification device 100. The "prevention conditions" may also utilize the temperature profile screen and consider the presence of moving people and the positions of objects that may be combustible.

[0020] The "omen conditions" and "prevention conditions" may be set (changed) depending on the position on the temperature screen as described above. For example, the positions of the stove, the outlet, and the hob on the visible screen can be set in advance. Then, at the corresponding positions on the temperature screen, the control unit 130 may set the predefined omen conditions and prevention conditions for the stove near the position of the stove, for the outlet near the position of the outlet, and for the hob near the position of the hob. The position of the stove itself allows for high temperatures. The conditions satisfied when the temperature above the stove exceeds the temperature in general cooking such as oil and food can be set as the "predefined omen conditions for the stove". For example, the temperature above the stove being 300 degrees (a temperature lower than the ignition point of oil) or higher can be set as the "predefined omen conditions for the stove". Also, the temperature above the stove being 200 degrees (a temperature lower than the flash point of oil) or higher and no person moving on the temperature profile screen being near the stove can be set as the "predefined prevention conditions for the stove".

[0021] The position of the hob itself allows for high temperatures. The conditions satisfied when the temperature above and in the lateral direction of the hob exceeds the temperature of general items such as clothes and paper and is lower than the temperature at which there is a risk of ignition, or when the area with a temperature higher than the general temperature is spreading, etc., can be set as the "predefined omen conditions for the hob". For example, the temperature around the hob being 60 degrees or higher can be set as the "predefined omen conditions for the hob". Also, the presence of an object that may be combustible on the temperature profile screen near the hob can be set as the "predefined prevention conditions for the hob".

[0022] If the temperature at the position of the socket exceeds a temperature that is higher than the general temperature of clothes, paper, etc. and lower than the temperature at which there is a risk of ignition, the conditions to be satisfied may be defined as the "predetermined omen conditions for the socket". For example, it may be defined that the presence of a location with a temperature of 100 degrees or more is the "predetermined omen conditions for the socket". Note that the position of the socket is not limited to the socket arranged on a wall or the like. The position that is dangerous from the perspective of a fire is the socket with so-called octopus leg wiring, and the floor or the like may also correspond to the position of the socket in some cases. Also, in the temperature profile screen, the presence of octopus leg wiring may be defined as the "predetermined preventive conditions for the socket".

[0023] In addition, even if the position of the stove has not been set in advance on the visible screen, the control unit 130 may set, on the temperature screen, a position that indicates a temperature equal to or higher than a predetermined temperature within a predetermined area or more as the position of the stove. For example, on the temperature screen, when the temperature rises rapidly within an area equal to or larger than the predetermined area and stabilizes at a temperature equal to or higher than the predetermined temperature, the position may be set as the position of the stove. Then, the omen conditions in the vicinity of the position may be the predetermined omen conditions for the stove described above. However, if the conditions of the temperature and the change in temperature, and the area and the change in area set as the above-mentioned default omen conditions are satisfied, an omen notification will be made. After that, the position of the stove may be set when the temperature stabilizes. In this case, the destination of the omen communication for which the omen notification has been made may be notified of the fact that the position of the stove has been set. Note that in order to avoid the omen notification, the position of the stove may be set in advance.

[0024] The control unit 130 determines a heat source at a position on the temperature screen that is equal to or smaller than a predetermined second area (small area) and equal to or higher than a predetermined temperature. When the heat source has moved in the past, the control unit 130 may use the predetermined omen conditions in the vicinity of the heat source as the predetermined omen conditions for cigarettes. Specifically, when the heat source does not move for a certain period of time or when the area of the part at 100 degrees or higher becomes equal to or larger than the predetermined second area, the conditions to be satisfied may be set as the "predetermined omen conditions for cigarettes". The second area (small area) may be set to be slightly larger than the flame of a cigarette. Also, on the temperature contour screen, the fact that a person near the heat source is lying down and the presence of a futon may be set as the "predetermined prevention conditions for cigarettes".

[0025] If the temperature of the "predetermined omen conditions" is set relatively low, an omen notification will be issued earlier, and the risk of a room fire can be reduced. However, there is also a problem that omen notifications will occur more frequently even in situations where there is no risk of fire. When an omen notification is issued, information indicating the temperature screen, the visible screen, and the position on the visible screen corresponding to the position on the temperature screen that satisfies the predetermined omen conditions is transmitted to the user terminal 300 or the data collection device 200. Therefore, it may be possible to instruct the setting of the predetermined omen conditions from the user terminal 300 or the data collection device 200. Alternatively, only a specific user terminal 300 may be given the authority to instruct the setting of the predetermined omen conditions.

[0026] The data collection device 200 includes a result acquisition unit 210, a recording unit 290, a condition calculation unit 220, and a condition setting unit 230. The condition setting unit 230 sets predetermined omen conditions in the fire omen notification device 100. The result acquisition unit 210 acquires a result indicating the degree of a fire when predetermined omen conditions are satisfied. The "result" includes a situation where there is no fire risk, a discovery of a fire omen, or a situation where a fire has already occurred. The recording unit 290 records the result together with the predetermined omen conditions. Even when the omen conditions are changed, the result may be recorded together with the omen conditions before the change. Further, the recording unit 290 may record information indicating a change in the temperature screen before and after the omen conditions are satisfied.

[0027] The condition calculation unit 220 obtains omen conditions using the results recorded in the recording unit 290. If there are already predetermined omen conditions, the condition calculation unit 220 changes the predetermined omen conditions. The condition calculation unit 220 may change the predetermined omen conditions using the results for each fire omen notification device 100 or for each "predetermined omen condition" depending on the position on the temperature screen. For example, when results indicating no fire risk are collected a predetermined number of times, the temperature condition may be changed to be set a certain amount higher (for example, 10 degrees higher). For example, when results indicating that a fire has already occurred are collected in large numbers, the conditions may be changed to conditions (temperature, change in temperature, area indicating a high temperature, change in area, etc.) that could prevent the occurrence of a fire based on the change in the temperature screen before and after the predetermined omen conditions are satisfied. The condition calculation unit 220 may use AI.

[0028] According to the fire omen notification device 100 and the fire omen notification system 10, since the factors leading to a fire can be detected as omens of a fire, appropriate responses can be made before the fire breaks out. In the present invention, paying attention to the fact that the causes of house fires and the actual situation where the elderly are often slow to escape, by automatically detecting the prevention of house fires that are artificially habituated, it becomes possible to prevent even those who do not form the habit. In the case of the elderly, by also automatically notifying of fire prevention that is difficult to habituate, it promotes habituation and enables the family (in a remote location) of the elderly to grasp a dangerous situation as fire prevention together with images or videos, thus providing a sense of security.

Explanation of Reference Numerals

[0029] 10 Fire omen notification system 100 Fire omen notification device 110 Thermal imaging sensor 120 Visible camera 130 Control unit 170 Alarm output unit 180 Communication unit 190 Recording unit 200 Data collection device 210 Result acquisition unit 220 Condition calculation unit 230 Condition setting unit 290 Recording unit 300 User terminal 900 Network

Claims

1. A fire omen notification device installed in a room for monitoring fire omens, a thermal imaging sensor for acquiring a temperature screen indicating temperature information within a predetermined range, a visible camera for acquiring a visible screen indicating the visible video within the predetermined range, a control unit for controlling the fire omen notification device, a communication unit for communicating with the outside, comprising: the position on the temperature screen indicating the same position and the position on the visible screen are associated with each other, when the control unit satisfies a predetermined omen condition in the temperature screen, the temperature screen, the visible screen, and information indicating the position on the visible screen corresponding to the position on the temperature screen that satisfies the predetermined omen condition are transmitted to a predetermined communication destination for omens set in advance via the communication unit. A fire omen notification device characterized by the above.

2. The fire omen notification device according to claim 1, the position of the stove, the position of the outlet, and the position of the range hood on the visible screen can be set in advance in the control unit, the predetermined omen condition in the control unit is a predetermined omen condition for the stove in the vicinity of the position of the stove, a predetermined omen condition for the outlet in the vicinity of the position of the outlet, and a predetermined omen condition for the range hood in the vicinity of the position of the range hood. A fire omen notification device characterized by the above.

3. The fire omen notification device according to claim 1, the control unit sets a position on the temperature screen that indicates a temperature equal to or higher than a predetermined temperature and an area equal to or larger than a predetermined area as the position of the stove, and the predetermined omen condition in the vicinity of the position is the predetermined omen condition for the stove. A fire omen notification device characterized by the above.

4. The fire omen notification device according to claim 1, On the temperature screen, the control unit determines a position indicating a temperature equal to or higher than a predetermined temperature as a heat source. If the heat source has moved in the past, the predetermined omen conditions in the vicinity of the heat source shall be the predetermined omen conditions for cigarettes. A fire omen notification device characterized by the above.

5. The fire omen notification device according to claim 1, The visible camera operates when the predetermined omen conditions are satisfied on the temperature screen. A fire omen notification device characterized by the above.

6. The fire omen notification device according to claim 1, The predetermined omen conditions can be set based on an instruction from the omen communication destination. A fire omen notification device characterized by the above.

7. The fire omen notification device according to any one of claims 1 to 4, When the control unit satisfies predetermined prevention conditions based on the temperature screen and the visible screen, it transmits to a predetermined prevention communication destination set in advance via the communication unit. A fire omen notification device characterized by the above.

8. The fire omen notification device according to claim 7, The control unit performs a process of emphasizing the contour of the temperature screen based on the visible screen to obtain a temperature contour screen. Based on the temperature contour screen, it estimates the presence of a moving person and the position of an object that may be a combustible, and determines whether the predetermined prevention conditions are satisfied. A fire omen notification device characterized by the above.

9. A fire omen notification device according to any one of claims 1 to 6, and A data collection device arranged at the omen communication destination A fire omen notification system including: The data collection device is A result acquisition unit that acquires a result indicating the degree of a fire when the predetermined omen conditions are satisfied; A recording unit that records the result together with the predetermined omen conditions; A condition calculation unit that obtains the predetermined omen conditions using the result recorded in the recording unit; A condition setting unit that sets the predetermined omen conditions in the fire omen notification device; Comprising; A fire omen notification system characterized by the above.

10. The fire omen notification system according to claim 9, wherein; The recording unit also records information indicating a change in the temperature screen before and after the predetermined omen conditions are satisfied, The condition calculation unit obtains the predetermined omen conditions using the information indicating the change in the temperature screen as well; A fire omen notification system characterized by the above.

Images