WO2016174974A1 - Fire detection device, automatic fire extinguishing device, and automatic fire extinguishing system - Google Patents

Abstract

This fire detection device is provided with: a fire monitoring unit 10 that detects the carbon monoxide concentration, smoke density, and temperature of a warning area α; a threshold setting unit 31 in which a threshold is set; a fire determination unit 41 that determines the outbreak of a fire by comparing the threshold with the carbon monoxide concentration, smoke density, and temperature; a transmission unit 33 that transmits a fire signal; a human detection sensor 21 that detects a room occupant in the warning area α; a thermosensor 22 that detects the body temperature of the room occupant; and a room occupant determination unit 42 that determines the presence/absence of a room occupant and determines the condition of the room occupant. The room occupant determination unit 42 determines the condition of the room occupant when the fire determination unit 41 determines that a fire has broken out, and the transmission unit 33 transmits a fire signal and transmits a determination result for the condition of the room occupant, thereby enabling early detection of the outbreak of a fire and making it possible to clearly and quickly confirm whether there is a person who has failed to escape at the time of the outbreak of the fire.

Description

Fire detection device, automatic fire extinguishing device, and automatic fire extinguishing system

The present invention relates to a fire detection device that detects the occurrence of a fire, an automatic fire extinguishing device that automatically extinguishes when a fire is detected, and an automatic fire extinguishing system.

It is known that carbon monoxide is generated when a futon or the like is fired. In the case of firewood fire, the temperature near the ceiling where detectors are usually installed may not be too high, so smoke detectors and alarm devices that detect fires with carbon monoxide concentration are available as means for detecting such fires. Are known.
Also, when igniting flammable materials such as clothing from a flaming fire such as a lighter or stove and spreading, such as clothing ignition, rather than smoke detectors and alarms that detect fire with carbon monoxide concentration There is a possibility that a differential heat sensor or a constant temperature heat sensor that detects heat can detect a fire earlier.
In this way, in an environment where various types of fires can occur, all of the sensors that detect fires with heat, the sensors that detect fires with smoke, and the sensors that detect fires with carbon monoxide are used. By monitoring, it is desirable to identify the type of fire (flammable fire, smoldering fire, etc.), and perform warning and extinguishment at the initial stage of fire occurrence.
In addition, whether or not there is a person who has missed escape at the time of the fire is largely dependent on information from other evacuees or visual confirmation by firefighters, etc. is there.

Here, Patent Literature 1 discloses a fire gas leak alarm device that includes a fire detection unit and a gas detection unit, and ranks the urgency of an abnormal situation by a combination of output values from the fire detection unit and the gas detection unit. Has been.
Further, Patent Document 2 detects the presence / absence of an occupant and the occurrence of an abnormality based on the operation of an electric lock installed at a door of a front door and the detection of a person's movement by a human sensor installed in the room. A monitoring system is disclosed.

JP 2002-42259 A JP 2014-2680 A

The fire gas leak alarm of Patent Document 1 judges that the urgency level is low when only one of the plurality of detection units detects an alarm, but the concentration of carbon monoxide has increased particularly In some cases, it is not enough as a fire detector because it alone is likely to be life-threatening. Also, it cannot be confirmed whether there is a person who has missed escape in the event of a fire.
Since the monitoring system of patent document 2 makes unlocking or locking operation of an electric lock one of the occupants' judgment, it cannot be applied to a room where no electric lock is installed.

Therefore, the present invention can monitor the carbon monoxide concentration, smoke concentration, and temperature in combination to detect the occurrence of a fire at an early stage, and can accurately and quickly confirm whether there is a person who is late in the event of a fire. An object of the present invention is to provide a fire detection device and a fire automatic extinguishing device including the fire detection device.

The fire detection device according to claim 1 is a fire detection device that detects the occurrence of a fire, and includes a fire monitoring unit that detects carbon monoxide concentration, smoke concentration, and temperature in a warning zone, and the carbon monoxide concentration, The threshold setting unit in which the smoke concentration and the temperature threshold are set, the threshold set in the threshold setting unit, the carbon monoxide concentration detected by the fire monitoring unit, the smoke concentration, or the temperature A fire determination unit that determines whether a fire has occurred, a transmission unit that transmits a fire signal when the fire determination unit determines that the fire has occurred, and detects an occupant in the alert area Based on a human sensor, a thermosensor for detecting the temperature of the occupant, a detection result of the human sensor and a detection result of the thermosensor, the presence / absence determination of the occupant and the occupant's In-room judgment to determine the status The occupant determination unit performs the state determination of the occupant when the fire determination unit determines that the fire has occurred, and the transmission unit transmits the fire signal. In addition, the result of the state determination of the occupant is transmitted.
According to a second aspect of the present invention, in the fire detection device according to the first aspect, the fire detection device includes an acceleration sensor installed at an entrance door of the warning section, and the occupant determination unit is configured to determine whether or not the occupant is present. In the determination, after the opening / closing of the entrance door is detected by the acceleration sensor, it is determined that the occupant is present when there is a reaction to the human sensor within the predetermined time, and the entrance is detected by the acceleration sensor. If the human sensor does not react within a predetermined time after the opening / closing of the door is detected, it is determined that the occupant is not present.
According to a third aspect of the present invention, in the fire detection device according to the first or second aspect, the occupant determination unit does not determine that the fire has occurred. When it is determined in the presence / absence determination that the occupant is present, the state determination is performed at regular time intervals, and when the transmission unit determines that the occupant is in an abnormal state in the state determination, An emergency signal is transmitted.
According to a fourth aspect of the present invention, in the fire detection apparatus according to the second or third aspect, the occupant determination unit is activated when the opening / closing of the entrance door is detected by the acceleration sensor. It is characterized by that.
The automatic fire extinguishing apparatus according to claim 5 is an automatic fire extinguishing apparatus including the fire detection apparatus according to any one of claims 1 to 4, and a fire extinguishing agent container filled with a fire extinguishing agent; A discharge nozzle that discharges the fire extinguishing agent to the alert zone, a fire extinguisher pipe that connects the fire extinguisher container and the discharge nozzle, and an opening that instructs opening of the fire extinguishing agent container when the fire signal is received It has a fire extinguishing signal transmission part which transmits a signal, It is characterized by the above-mentioned.
An automatic fire extinguishing system according to claim 6 is provided with the automatic fire extinguishing apparatus according to claim 5 and a remote monitoring device installed outside the warning area, wherein the remote monitoring device determines the occupant's presence. When the unit determines that the occupant is present, it has a safety confirmation unit that transmits a safety confirmation signal to the automatic fire extinguishing device when the time comes, and the automatic fire extinguishing device receives the safety confirmation signal Sometimes there is an interrogation unit that emits a sound, light, vibration, etc. in the warning area and transmits a response signal to the safety confirmation unit when a response is received from the occupant in response to the call. The safety confirmation unit transmits an emergency signal when the response signal is not received within a predetermined time.

According to the present invention, carbon monoxide concentration, smoke concentration, and temperature are monitored in combination to detect the occurrence of a fire at an early stage, and at the time of the occurrence of a fire, it can be accurately and promptly confirmed whether there is a person who has escaped. A fire detection device and an automatic fire extinguishing device including the fire detection device can be provided. It is also possible to confirm the safety of elderly people living alone.

The figure which shows the installation state of the fire extinguishing apparatus by one Example of this invention The figure which shows arrangement of the fire extinguishing device installed in the warning area Block diagram showing the control system of the fire extinguisher with function implementation means The figure which shows the relation between the threshold and fire detection time in the same fire extinguishing device Flow chart showing the processing flow of the fire determination unit of the fire extinguishing device Flow chart showing the process flow of the occupant determination unit of the fire extinguisher The figure which shows the relationship between the threshold value and fire detection time in the fire extinguishing apparatus by other Example of this invention. Flow chart showing the processing flow of the fire determination unit of the fire extinguishing device

The fire detection device according to the first embodiment of the present invention has a fire monitoring unit that detects a carbon monoxide concentration, a smoke concentration, and a temperature in a warning zone, and a threshold value for the carbon monoxide concentration, the smoke concentration, and the temperature is set. A fire determination unit that compares the threshold set by the threshold setting unit with the carbon monoxide concentration, smoke concentration, or temperature detected by the fire monitoring unit, A transmitter that transmits a fire signal when the determination unit determines that a fire has occurred, a human sensor that detects an occupant in the alert area, a thermosensor that detects the temperature of the occupant, and a human sensor Based on the detection result of the sensor and the detection result of the thermo sensor, and a occupant determination unit for determining the presence / absence of the occupant and the state of the occupant. When it is determined that a problem has occurred, Transmitting unit transmits the fire signal, and transmits the result of the state determination of the occupants. According to the present embodiment, when a fire occurs, information on the presence and state of a room occupant is transmitted together with a fire signal, so that the fire brigade or the like can use the information for planning a fire extinguishing / lifesaving plan. In addition, by detecting the carbon monoxide concentration, smoke concentration, and temperature, and making a fire determination, it is possible to reduce false detections and to easily identify the type of fire (flammable fire, smoldering fire, etc.).
The second embodiment of the present invention is the fire detection device according to the first embodiment, further comprising an acceleration sensor installed at the entrance door of the warning section, and the occupant determination unit determines whether or not the occupant is present. After the opening / closing of the entrance door is detected by the acceleration sensor, if there is a reaction to the human sensor within a predetermined time, it is determined that there is a person in the room and the opening / closing of the entrance door is detected by the acceleration sensor. When the human sensor does not react within a predetermined time, it is determined that there is no occupant. According to the present embodiment, using the opening / closing of the entrance door as a trigger, it can be determined that the presence sensor has responded within a predetermined period of time, and it can be determined that the presence sensor has been exited. Therefore, the presence / absence of the occupant can be determined more accurately than when the human sensor alone is used.
According to the third embodiment of the present invention, in the fire detection device according to the first or second embodiment, the presence / absence determination unit is present in a state where the fire determination unit has not determined that a fire has occurred. If it is determined in the determination that there are occupants, the state is determined every certain time, and the transmitter transmits an emergency signal when it is determined in the state determination that the occupants are in an abnormal state. is there. According to the present embodiment, it is possible to periodically determine the state of a room occupant in a steady state where no fire has occurred, and to notify the surroundings when an abnormality is detected. Therefore, the present invention can be applied to watching an elderly person living alone or a child who has an answering machine.
According to a fourth embodiment of the present invention, in the fire detection device according to the second or third embodiment, the occupant determination unit is activated when the opening / closing of the entrance door is detected by the acceleration sensor. is there. According to the present embodiment, the occupant determination unit does not operate until the door is opened and closed, so that power consumption can be suppressed.
A fire automatic extinguishing apparatus according to a fifth embodiment of the present invention is an automatic fire extinguishing apparatus including the fire detection apparatus according to any one of the first to fourth aspects, wherein the fire extinguishing agent is filled with a fire extinguishing agent. The container, the discharge nozzle that discharges the fire extinguishing agent to the warning area, the fire extinguisher piping that connects the fire extinguisher container and the discharge nozzle, and the release signal that instructs the opening of the fire extinguisher container when a fire signal is received A fire extinguishing signal transmitter. According to the present embodiment, when a fire occurs, information on the presence and state of a room occupant is transmitted together with a fire signal, so that the fire brigade or the like can use the information for planning a fire extinguishing / lifesaving plan. In addition, when a fire is detected, the fire can be automatically extinguished. In addition, by detecting the carbon monoxide concentration, smoke concentration, and temperature, and making a fire determination, it is possible to reduce false detections and to easily identify the type of fire (flammable fire, smoldering fire, etc.).
An automatic fire extinguishing system according to a sixth embodiment of the present invention includes the automatic fire extinguishing device according to the fifth embodiment and a remote monitoring device installed outside the warning area. When the room occupant determination unit determines that a resident is present, it has a safety confirmation unit that sends a safety confirmation signal to the automatic fire extinguishing device at the scheduled time. When the automatic fire extinguishing device receives the safety confirmation signal A call confirmation unit that issues a sound, light, vibration, etc. call in the warning zone and transmits a response signal to the safety confirmation unit when a response is received from the resident in response to the call. Transmits an emergency signal when a response signal is not received within a predetermined time. According to the present embodiment, the occupant safety confirmation unit periodically calls the occupants at regular times when no fire has occurred. When an abnormality (no response from the occupant) is detected, the remote monitoring device can notify an external organization (local government, fire department, care service company, etc.). Therefore, the present invention can be applied to confirming the safety of a single person living alone or a child who has an answering machine.

Examples of the present invention will be described below.
FIG. 1 is a diagram showing an installation state of a fire extinguisher according to an embodiment of the present invention, FIG. 2 is a diagram showing an arrangement of the fire extinguishing device installed in a warning area, and FIG. 3 is a function realizing the control system of the fire extinguishing device FIG. 4 is a diagram showing the relationship between the threshold value and the fire detection time in the fire extinguishing device, FIG. 5 is a flowchart showing the processing flow of the fire determination unit of the fire extinguishing device, and FIG. It is a flowchart which shows the processing flow of a resident determination part.
Fig.1 (a) has shown the arrangement | positioning of each room of the floor in which the fire extinguishing apparatus was installed. As shown in FIG. 1A, there are a room A, a room B, a room C, a room D, a room E, and a room F on the floor. Each of the room A to the room F is a fire warning zone α, and a set of the warning zones α, that is, the entire floor is a warning zone β. The automatic fire extinguishing apparatus 1 according to the present embodiment is installed for each warning section α, and the plural automatic fire extinguishing apparatuses 1 are connected to each other by wire or wirelessly.
The automatic fire extinguishing apparatus 1 includes a network device 90 that is connected to a receiving panel 2 installed in the same building and a remote monitoring apparatus 3 installed outside the building by wire or wirelessly. When adopting a wireless system for the network means 90, it is preferable to use Wi-Fi that is less susceptible to noise. The connection between the devices in the automatic fire extinguishing apparatus 1 is the same.
When the automatic fire extinguishing apparatus 1 detects a fire, it transmits a fire signal to the receiving panel 2 and the remote monitoring apparatus 3 via the network means 90. By transmitting a fire signal to the receiving panel 2 and the remote monitoring device 3, it is possible to quickly inform the surroundings that a fire has occurred.
The remote monitoring device 3 has a safety confirmation unit 3A, and is connected to an external organization such as a fire department through a network means 90. When the safety confirmation unit 3A detects that an abnormality has occurred in the occupants in the alert zone α, an emergency signal is transmitted to the external organization.

FIG. 2 is a diagram showing the arrangement of the automatic fire extinguishing apparatus 1 installed in the warning zone α.
A fire monitoring unit 10 including a carbon monoxide concentration detection unit 11, a smoke concentration detection unit 12, and a temperature detection unit 13 is disposed on the ceiling of the warning zone α. The fire monitoring unit 10 transmits information about the carbon monoxide concentration, smoke concentration, and temperature detected by the carbon monoxide concentration detection unit 11, the smoke concentration detection unit 12, and the temperature detection unit 13 to the fire determination unit 41.
The fire determination unit 41 is disposed in the fire extinguisher container 5. The fire determination unit 41 determines a fire occurrence by comparing a preset threshold value with a carbon monoxide concentration, a smoke concentration, or a temperature. When the fire determination unit 41 determines that a fire has occurred, the automatic fire extinguishing apparatus 1 transmits a fire signal.
A human sensor 21 and a thermosensor 22 are arranged on the wall surface near the ceiling of the warning section α. The human sensor 21 detects a person in the room in the alert zone α. The thermosensor 22 detects the temperature of the occupant. The detection results of the human sensor 21 and the thermo sensor 22 are transmitted to the occupant determination unit 42 arranged in the fire extinguisher container 5.
In addition, an acceleration sensor 23 is installed at the entrance door 4 of the warning section α. When the opening / closing of the entrance door 4 is detected by the acceleration sensor 23, a signal is transmitted to the occupant determination unit 42.
The fire extinguisher container 5 is filled with a fire extinguisher. When a fire is detected, the internal extinguishing agent is pushed out to the extinguishing agent pipe 7 by the pressurized gas.
The discharge nozzle 6 is arranged on the ceiling toward the floor surface or the like, and discharges a fire extinguisher into the alert zone α when a fire is detected.
The fire extinguisher pipe 7 is raised vertically from the fire extinguisher container 5 and is connected to the discharge nozzle 6 through the wall and the ceiling.
The fire extinguishing signal transmitter 8 receives the fire signal and transmits an opening signal instructing opening of the extinguishing agent container 5 to a control valve (not shown). When the open signal is received, the extinguishant container 5 is opened, and the extinguishing agent filled in the extinguishing agent container 5 is pushed out to the extinguishing agent pipe 7 by the pressurized gas. The extruded fire extinguishing agent is discharged from the discharge nozzle 6 to the alert zone α via the fire extinguishing agent pipe 7. Thus, when a fire is detected, the fire can be automatically extinguished.
In the present embodiment, the differential heat detector 9 for detecting heat is disposed on the ceiling.
In the present embodiment, the interrogation unit 80 is disposed in the fire extinguishing agent container 5. The interrogation unit 80 issues an interrogation such as sound, light, vibration or the like in the alert zone α, and transmits a response signal to the safety confirmation unit 3A when a response is received from the resident in response to the interrogation.

FIG. 3 is a block diagram showing the control system of the fire extinguishing apparatus with function realizing means.
The fire monitoring unit 10 detects the carbon monoxide (CO) concentration, smoke concentration, and temperature in the alert zone α.
In the threshold setting unit 31, a plurality of thresholds are set for the carbon monoxide concentration, the smoke concentration, and the temperature.
The activation unit 32 compares the activation threshold value among the plurality of threshold values set by the threshold value setting unit 31 with the carbon monoxide concentration detected by the fire monitoring unit 10, and compares the smoke concentration detection unit 12 and the temperature detection unit 13. , And whether to activate the fire determination unit 41.
The determination unit 40 is configured by a semiconductor integrated circuit such as an LSI (Large Scale Integration), and includes a fire determination unit 41 and an occupant determination unit 42.
When the fire determination unit 41 determines that a fire has occurred, the transmission unit 33 fires a warning sound output unit or a warning display unit (not shown), the receiving panel 2, the remote monitoring device 3, and the fire extinguishing signal transmission unit 8. Send a signal.
The determination storage unit 34 stores the determination result of the fire determination unit 41.
The noise removing unit 50 removes noise from the detection signal from the fire monitoring unit 10.
The abnormality detection unit 70 detects an abnormality in the fire monitoring unit 10, the threshold setting unit 31, the activation unit 32, the determination unit 40, the transmission unit 33, the determination storage unit 34, or the noise removal unit 50.
The interrogation unit 80 issues an interrogation for confirming the safety of the occupants.
The differential heat detector 9 monitors a fire separately from the fire monitoring unit 10.

The fire monitoring unit 10 includes a carbon monoxide concentration detection unit 11, a smoke concentration detection unit 12, and a temperature detection unit 13.
The fire monitoring unit 10 is connected to the activation unit 32 and the fire determination unit 41 by wire or wirelessly. The detection results of the carbon monoxide concentration detection unit 11, the smoke concentration detection unit 12, and the temperature detection unit 13 are transmitted to the activation unit 32 and the fire determination unit 41.

In the threshold setting unit 31, a plurality of thresholds are set for each of the carbon monoxide concentration, the smoke concentration, and the temperature.
In the present embodiment, the following threshold values are set. A first threshold, a second threshold lower than the first threshold, and a starting threshold lower than the second threshold are set for the carbon monoxide concentration, and a third threshold and a third threshold are set for the smoke concentration. A low fourth threshold value is set, and a fifth threshold value and a sixth threshold value lower than the fifth threshold value are set for the temperature. The first threshold value to the sixth threshold value are determination threshold values.
The threshold setting unit 31 is connected to the activation unit 32 and the fire determination unit 41 by wire or wirelessly. The activation threshold is transmitted to the activation unit 32, and the determination threshold (first to sixth thresholds) is transmitted to the fire determination unit 41.

The activation unit 32 compares the activation threshold set by the threshold setting unit 31 with the carbon monoxide concentration detected by the carbon monoxide concentration detection unit 11.
The activation unit 32 is connected to the fire monitoring unit 10 and the fire determination unit 41 in a wired or wireless manner, and as a result of comparison, when it is determined that the state in which the carbon monoxide concentration exceeds the activation threshold has continued for a predetermined time. The activation signal is transmitted to the fire monitoring unit 10 and the fire determination unit 41.
When receiving the activation signal from the activation unit 32, the smoke concentration detection unit 12 and the temperature detection unit 13 of the fire monitoring unit 10 are activated to start detection. As described above, the smoke concentration detector 12 and the temperature detector 13 are prevented from operating until the carbon monoxide concentration reaches a predetermined value, thereby reducing power consumption.

The occupant determination unit 42 is activated when opening / closing of the entrance door 4 is detected by the acceleration sensor 23, and based on the detection result of the human sensor 21 and the detection result of the thermosensor 22, Judgment and occupant status determination are performed.
The occupant determination unit 42 detects that the human sensor 21 has reacted within a predetermined time (for example, within 20 seconds) after the opening / closing of the entrance door 4 is detected by the acceleration sensor 23. It is determined that a person has entered the room, that is, a person exists in the room A. In addition, after the acceleration sensor 23 detects the opening / closing of the entrance door 4, if there is no response to the human sensor 21 within a predetermined time (for example, within 20 seconds), all persons who are in the room A are all from the room A. It is determined that there is no person in the room A. The human sensor 21 uses infrared rays or ultrasonic waves.
It can also be configured such that the presence / absence determination of the occupant is performed only by the human sensor 21 without using the acceleration sensor 23. However, the presence / absence determination is performed by using the acceleration sensor 23 and the human sensor 21 together as in the present embodiment, so that if the human sensor 21 reacts within a predetermined time using the opening / closing of the entrance door 4 as a trigger, the user enters the room. If the human sensor 21 does not react, it can be determined that the user has gone out. Therefore, the presence / absence of the occupant can be determined with higher accuracy than when the human sensor 21 alone is used.
The occupant determination unit 42 ends the operation when it is determined that no occupant exists. As described above, the occupant determination unit 42 starts the operation when the opening / closing of the entrance door 4 is detected, and ends the operation when it is determined that there is no occupant, thereby suppressing power consumption. At the same time, the operating time can be reduced to extend the service life.

The fire determination unit 41 is activated and starts determination when the occupant determination unit 42 determines that there is a resident or receives an activation signal from the activation unit 32. As described above, the fire determination unit 41 suppresses power consumption and reduces operation time when it is determined that there is a resident or until the carbon monoxide concentration reaches a predetermined value. To extend the service life.

The fire determination unit 41 compares the determination threshold value among the plurality of threshold values set by the threshold value setting unit 31 with the carbon monoxide concentration, smoke concentration, or temperature detected by the fire monitoring unit 10, and If any result is obtained, it is determined that a fire has occurred.
1) When the state where the carbon monoxide concentration exceeds the first threshold value continues for a predetermined time.
2) When the smoke concentration exceeds the third threshold for a predetermined time.
3) When the temperature exceeds the fifth threshold for a predetermined time and the differential heat detector 9 detects a fire.
4) A state where the carbon monoxide concentration exceeds the second threshold continues for a predetermined time, a state where the smoke concentration exceeds the fourth threshold continues for a predetermined time, and a state where the temperature exceeds the sixth threshold. When it lasts for a predetermined time.
As described above, by detecting the carbon monoxide concentration, smoke concentration, and temperature and making a fire determination, it becomes easy to identify the type of fire (flammable fire, fire burning, etc.).
“Continuous time” means that the carbon monoxide concentration, smoke concentration, or temperature is determined to have continuously exceeded the threshold, and the threshold has been exceeded a plurality of times during the predetermined time. This includes the case where it is determined that the number of times exceeds the predetermined reference number.
When the fire determination unit 41 determines that a fire has occurred, the transmission unit 33 issues a fire signal. The fire signal is transmitted to the fire extinguishing signal transmission unit 8, the warning sound output unit or the warning display unit (not shown), the receiving panel 2, and the remote monitoring device 3. In addition, when the transmission part 33 and the fire extinguishing signal transmission part 8 are connected by the network means of a radio system, since wiring between apparatuses becomes unnecessary, it can install even if there is little wiring space.
The fire extinguisher container 5 is instructed to open the fire extinguisher container 5 by receiving the fire signal, and the fire extinguisher filled in the fire extinguisher container 5 is discharged from the discharge nozzle 6 via the fire extinguisher pipe 7. Can be extinguished automatically.
Moreover, the fire monitoring unit 10 continues to monitor the alert zone α after the extinguishing agent is released. The transmitter 33 transmits a fire stop signal to the fire extinguishing signal transmitter 8 when the fire determining unit 41 determines that no fire has occurred after the extinguishing agent is released. The fire extinguishing signal transmitter 8 that has received the fire stop signal transmits a closing signal for instructing closing of the extinguishing agent container 5 to a control valve (not shown) or the like. When the closing signal is received, the extinguishing agent container 5 or the extinguishing agent pipe 7 is closed, and the discharge of the extinguishing agent stops. In this manner, by stopping the release of the extinguishing agent in the case of erroneous detection or after extinguishing the fire, it is possible to prevent damage to people or objects in the alert zone α due to unnecessary extinguishing of the extinguishing agent.

Here, FIG. 4 is a diagram showing the relationship between the threshold value and the fire detection time in the fire extinguishing apparatus, FIG. 4 (a) shows the relationship between the carbon monoxide concentration and the fire detection time, and FIG. 4 (b) is the smoke concentration. FIG. 4C shows the relationship between temperature and fire detection time. The vertical axis represents carbon monoxide concentration, smoke concentration, or temperature, and the horizontal axis represents fire detection time. In addition, fire detection time is time until a fire extinguishing apparatus detects the said fire when a fire occurs.
As shown in FIG. 4, the fire detection time can be shortened as the threshold value is set lower, but the possibility of erroneous detection increases when the threshold value is set lower. Therefore, as in the present embodiment, the first threshold value and the second threshold value lower than the first threshold value are provided as the carbon monoxide concentration determination threshold value, and the second threshold value is used to determine the fire by combining the smoke concentration and temperature information. By doing so, it is possible to prevent an increase in false detection when the threshold value for determining the carbon monoxide concentration is set low. Therefore, the threshold for determining the carbon monoxide concentration can be set low, and even a fire such as a roasting fire in which the heat is not so high and the carbon monoxide concentration is increased is detected early and automatically extinguished. can do.

In the block diagram of FIG. 3, if the occupant determination unit 42 determines that there are occupants, the fire determination unit 41 determines that a fire has occurred or at regular intervals (for example, every 30 minutes). Based on the detection result of the human sensor 21 and the detection result of the thermo sensor 22, the state determination of the occupant is performed. It should be noted that the period (interval) of time for determining the state of the occupant may be changed depending on the season, temperature, time zone, or the like.
The occupant determination unit 42 determines as shown in the table below. (1) When the human sensor 21 has a reaction and the thermosensor 22 has a reaction, the occupant is alive and in a movable state (normal). (2) When the human sensor 21 has a response and the thermosensor 22 has no response, it is a device failure or the state of the occupant is unknown (abnormal 1). (3) When the human sensor 21 does not react and the thermosensor 22 reacts, the occupant is alive but cannot move (Abnormal 2). (4) When the human sensor 21 does not react and the thermosensor 22 does not react, the occupant died (abnormality 3).

When the occupant determination unit 42 determines the occupant state because the fire determination unit 41 determines that a fire has occurred, the determination result from (1) to (4) in Table 1 is The data is transmitted from the transmitting unit 33 to the receiving panel 2 and the remote monitoring device 3. Thus, when a fire occurs, information on the presence and state of the occupant and the state is transmitted together with the fire signal, so that the fire brigade or the like can use the information for making a fire fighting / lifesaving plan. In addition, the determination result can be displayed on the receiving board 2 to notify other refugees and fire brigade of the presence and state of the occupants.
In addition to the warning zone α determined to have fired, the zone adjacent to the warning zone α (the warning zone α not determined to have fired, hereinafter simply referred to as “adjacent zone”), Alternatively, it is preferable to determine the state of the occupant in the entire warning zone β to which the warning zone α belongs, and transmit the determination result to the receiving panel 2 and the remote monitoring device 3. Fire suppression with a sprinkler may not completely extinguish, and carbon monoxide generated by the fire may cause occupants in the adjacent compartment to die of carbon monoxide poisoning. By confirming the remaining persons included, it is possible to contribute to quick and accurate lifesaving by, for example, a fire brigade or other evacuees. Moreover, when extinguishing with an automatic fire extinguishing apparatus like a present Example, possibility that it can extinguish completely rather than fire extinguishing with a sprinkler is high. However, in the case of a flammable fire, even if it is completely extinguished, the negative effects of carbon monoxide and smoke on the people in the adjacent compartment cannot be ignored. In particular, when the occupants are single elderly people who need assistance for evacuation, it is important in the rescue operation to know the location of the fire and the location of the occupants. In addition, although it is unlikely that people in adjacent compartments will be poisoned by carbon monoxide during a smokeless fire, it is important to check whether the people in the adjacent compartments can move for evacuation. Therefore, even if an automatic fire extinguisher is installed, in the event of a fire, check for the presence and status of occupants not only in the area where the fire occurred, but also in the adjacent area or the entire warning area β. Thus, appropriate rescue operations can be performed at an early stage.

On the other hand, when the fire determination unit 41 determines that a fire has not occurred and the occupant determination unit 42 determines the occupant state after a certain time (for example, 30 minutes) has elapsed, Table 1 When any one of the determination results (2) to (4) is obtained, an emergency signal is transmitted from the transmitting unit 33 to the receiving panel 2 and the remote monitoring device 3 in order to notify the occupants that an abnormality has occurred. The In this way, it is possible to determine the state of the occupant periodically by sensing at regular times when no fire has occurred, and to notify the surroundings if an abnormality is detected. Therefore, the present invention can be applied to watching an elderly person living alone or a child who has an answering machine.

The determination storage unit 34 stores data related to the magnitude and time of the detection signal from the fire monitoring unit 10 used for determination when the fire determination unit 41 determines that no fire has occurred.
The data stored in the determination storage unit 34 is transmitted to the threshold setting unit 31.
The threshold setting unit 31 changes the threshold based on the received data.
Thus, the accuracy of fire detection can be improved by storing the determination result and providing a learning function for changing the threshold according to the determination result.

Data relating to the magnitude and time of the detection signal from the fire monitoring unit 10 used for determination when the fire determination unit 41 determines that no fire has occurred, stored in the determination storage unit 34, is stored in the noise removal unit 50. Is also sent.
The noise removal unit 50 includes a noise storage unit 51 that stores data from the determination storage unit 34.
The noise removal unit 50 determines noise based on the data stored in the noise storage unit 51, and removes the noise from the detection signal transmitted from the fire monitoring unit 10 to the activation unit 32 and the fire determination unit 41.
That is, since the state in which the carbon monoxide concentration exceeded the start threshold for a certain period of time has continued for a predetermined time, the fire determination unit 41 has started and the determination of fire occurrence has started, but the result of the determination is non-fire (fire has occurred. The noise removal unit 50 determines that the background noise in the time zone is large, and detects the background noise from the detection signal from the carbon monoxide concentration detection unit 11 to the activation unit 32 in the time zone. Remove the size. This can reduce erroneous determination of the activation unit 32 and prevent the fire determination unit 41 from being activated unnecessarily.
Moreover, although the fire determination part 41 started in a certain time slot | zone and started determination and the state exceeding the 2nd threshold value continued for the predetermined time, the comparison of a smoke density | concentration with a 4th threshold value, temperature, and a 6th threshold value Even if the fire determination unit 41 determines that the fire is not fired by the comparison, the noise removal unit 50 determines that the background noise in the time zone is large, and from the detection signal from the fire monitoring unit 10 to the fire determination unit 41 in the time zone. The amount of the background noise is removed. As a result, erroneous determination of the fire determination unit 41 can be reduced, erroneous detection of fire can be prevented, and unnecessary fire extinguishing operation can be prevented.
Thus, the fire extinguisher of the present embodiment learns background noise, and the activation unit 32 and the fire determination unit 41 determine the activation threshold or determination based on the correct detection signal after the noise is removed by the noise removal unit 50. Comparison with the use threshold. Therefore, false detection can be reduced and the accuracy of fire detection can be improved.

The abnormality detection unit 70 includes an abnormality diagnosis unit 71 that diagnoses the content of the detected abnormality.
For example, when the detection signal from the fire monitoring unit 10 is not detected for a predetermined time, the abnormality diagnosis unit 71 determines that the fire monitoring unit 10 has failed. The diagnosis result of the abnormality diagnosis unit 71 is transmitted via the network means 90 to the receiving panel 2 or the remote monitoring device 3 installed outside the alert zone α.
Equipment and facilities used for fire fighting, including various sensors, are regularly inspected as required by the Fire Service Act. However, if a failure occurs before the next inspection, the failure may not be noticed and performance may not be exhibited in the event of a fire. Therefore, by constantly monitoring the state of the automatic fire extinguishing apparatus 1 as in the present embodiment, it is possible to quickly cope with an abnormality.

The automatic fire extinguishing apparatus 1 has a bidirectional communication function, and performs bidirectional communication with the remote monitoring apparatus 3.
When the occupant determination unit 42 determines that the occupant is present, the safety confirmation unit 3A of the remote monitoring device 3 determines the occupant's occupancy at the regular time (for example, 8 am, 3 pm, 9 pm). A safety confirmation signal for confirming safety is transmitted to the interrogator 80. In addition, you may change the time which transmits a safety confirmation signal according to a season, temperature, a resident's health condition, etc.
When the interrogation unit 80 receives the safety confirmation signal, the interrogator 80 issues interrogation such as sound, light, and vibration to the occupants in the alert zone α. Making an interrogation is, for example, generation of a buzzer sound or blinking of a lamp. Residents respond to the call by pressing a buzzer stop button or the like. When the response by the resident is detected, the interrogator 80 ends the interrogation and transmits a response signal to the safety confirmation unit 3A.
When receiving the response signal, the safety confirmation unit 3A determines that the occupant is normal (there is no abnormality such as being unable to fall down and move).
If the safety confirmation unit 3A does not receive a response signal within a predetermined time (for example, within 1 minute), it determines that an abnormality (such as being unable to fall over) has occurred in the occupant, and the receiving panel 2 and remote monitoring An emergency signal is transmitted to the device 3.
As described above, in a normal time when no fire has occurred, in addition to the state determination by the occupant determination unit 42, the occupants are periodically called for abnormalities (no response from the occupants). ) Can be notified to the outside. Therefore, it is possible to realize an automatic fire extinguishing system capable of confirming the safety of an elderly person living alone or a child who is answering. Further, when an emergency telephone function is added to the automatic fire extinguishing apparatus 1, it can also be used as a communication means in an emergency such as the occurrence of a fire.

FIG. 5 is a flowchart showing a processing flow of the fire determination unit 41 of the fire extinguishing apparatus.
When the occupant determination unit 42 determines that the occupant is present, or when the activation unit 32 determines that the state in which the carbon monoxide concentration exceeds the activation threshold continues for a predetermined time, the fire determination unit 41. Is activated and determination is started (step 1).
The fire determination unit 41 activated in step 1 determines whether or not the state in which the carbon monoxide concentration exceeds the second threshold has continued for a predetermined time (step 2).
If it is determined in step 2 that the state in which the carbon monoxide concentration exceeds the second threshold has not continued for a predetermined time, it is determined whether or not the state in which the smoke concentration has exceeded the third threshold has continued for a predetermined time ( Step 3).
If it is determined in step 3 that the smoke density has exceeded the third threshold for a predetermined time, it is determined that a fire has occurred (step 4).
If it is determined in step 3 that the state in which the smoke density exceeds the third threshold has not continued for a predetermined time, it is determined whether or not the state in which the temperature has exceeded the fifth threshold has continued for a predetermined time (step 5). ).
If it is determined in step 5 that the state in which the temperature exceeds the fifth threshold has continued for a predetermined time, it is determined whether or not the differential heat sensor 9 has detected a fire (step 6).
If it is determined in step 6 that the differential heat sensor 9 has detected a fire, it is determined that a fire has occurred (step 7).
If it is determined in step 6 that the differential heat sensor 9 has not detected a fire, it is determined that no fire has occurred (step 8).
If it is determined in step 5 that the state where the temperature exceeds the fifth threshold has not continued for a predetermined time, it is determined that no fire has occurred (step 9).
If it is determined in step 2 that the state in which the carbon monoxide concentration exceeds the second threshold has continued for a predetermined time, it is determined whether or not the state in which the carbon monoxide concentration has exceeded the first threshold has continued for a predetermined time. (Step 10).
If it is determined in step 10 that the state in which the carbon monoxide concentration exceeds the first threshold has continued for a predetermined time, it is determined that a fire has occurred (step 11).
If it is determined in step 10 that the state in which the carbon monoxide concentration exceeds the first threshold has not continued for a predetermined time, the state in which the smoke concentration has exceeded the fourth threshold continues for a predetermined time, and the temperature is It is determined whether or not the state exceeding the 6th threshold has continued for a predetermined time (step 12).
If it is determined in step 12 that the smoke concentration has exceeded the fourth threshold for a predetermined time and the temperature has exceeded the sixth threshold for a predetermined time, it is determined that a fire has occurred ( Step 13).
If it is determined in step 12 that the smoke density exceeds the fourth threshold does not continue for a predetermined time, or if the temperature exceeds the sixth threshold does not continue for a predetermined time Step 3 is performed.

FIG. 6 is a flowchart showing a processing flow of the occupant determination unit 42 of the fire extinguishing apparatus.
When the opening / closing of the entrance door 4 is detected by the acceleration sensor 23, the occupant determination unit 42 is activated to start determination (step 21).
The occupant determination unit 42 activated in step 21 determines whether or not the human sensor 21 has reacted within a predetermined time (for example, within 20 seconds) after the opening / closing of the entrance door 4 is detected by the acceleration sensor 23. (Step 22).
If it is determined in step 22 that the human sensor 21 has not responded within a predetermined time, all the people in the warning zone α have exited from the warning zone α, that is, there are no occupants in the warning zone α. It is determined that it does not exist (step 23), and the determination ends.
If it is determined in step 22 that the human sensor 21 has responded within a predetermined time, a person has entered the room or there are remaining persons, that is, there are persons in the room. Then, it is determined (step 24).
When it is determined in step 24 that there is a person in the room, it is determined whether or not the fire determination unit 41 determines that a fire has occurred (step 25).

If it is determined in step 25 that the fire determination unit 41 has determined that a fire has occurred, it is determined whether or not the human sensor 21 has a reaction (step 26).
If it is determined in step 26 that the human sensor 21 has a reaction, it is determined whether or not the thermosensor 22 has a reaction (step 27). The presence or absence of reaction of the thermosensor 22 is determined based on the average body temperature (about 36 ° C.) of the person. For example, it sets so that it may react when the body temperature of 30 to 42 degreeC is detected.
If it is determined in step 27 that there is a response to the thermosensor 22, it is determined that the occupant is alive and in a movable state (step 28). The determination result is transmitted from the transmitter 33 to the receiving panel 2 and the remote monitoring device 3 (step 29).
If it is determined in step 27 that there is no response to the thermosensor 22, it is determined that the device is malfunctioning or the occupant's state is unknown (step 30), and step 29 is performed.
If it is determined in step 26 that there is no response to the human sensor 21, it is determined whether or not the thermosensor 22 has a response (step 31).
If it is determined in step 31 that there is a response to the thermosensor 22, it is determined that the occupant is alive but cannot move (step 32), and step 29 is performed.
If it is determined in step 31 that there is no response to the thermosensor 22, it is determined that the occupant has died (step 33), and step 29 is performed.
In this embodiment, when it is determined that no occupant exists, the occupant determination unit 42 terminates the operation (step 23). However, when the occurrence of a fire is detected after step 23, May be configured to proceed to step 26. In step 23, there should be no occupants in the caution zone α, but with this configuration, the presence or absence of occupants can be confirmed just in case.

If it is determined in step 25 that the fire determination unit 41 determines that no fire has occurred, the state of the occupant is determined until the acceleration sensor 23 detects the opening / closing of the entrance door 4.
First, it is determined whether or not a predetermined time (for example, 30 minutes) has elapsed since the determination in step 25 (step 34).
If it is determined in step 34 that a certain time has passed since the determination in step 25, it is determined whether or not the human sensor 21 has a reaction (step 35).
If it is determined in step 35 that there is no response to the human sensor 21, it is determined whether or not the thermosensor 22 has a response (step 36).
If it is determined in step 36 that there is a response to the thermosensor 22, it is determined that the occupant is alive but cannot move (step 37), and the receiver 33 and the remote monitoring device are transmitted from the transmitter 33. An emergency signal is transmitted to 3 (step 38).
If it is determined in step 36 that there is no response to the thermosensor 22, it is determined that the occupant has died (step 39), and step 38 is performed.
If it is determined in step 35 that the human sensor 21 has a response, it is determined whether or not the thermosensor 22 has a response (step 40).
If it is determined in step 40 that there is no response to the thermosensor 22, it is determined that the device is malfunctioning or the state of the occupant is unknown (step 41), and step 38 is executed.
If it is determined in step 40 that there is a response to the thermosensor 22, it is determined that the occupant is alive and in a movable state (step 42), and the process returns to step 25.

FIG. 7 is a diagram showing a relationship between a threshold value and a fire detection time in a fire extinguishing apparatus according to another embodiment of the present invention, and FIG. 8 is a flowchart showing a processing flow of a determination unit of the fire extinguishing apparatus. The same functional means and the same functional units as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.
The fire extinguishing apparatus according to the present embodiment has the same basic configuration as the above-described embodiment, but is different in that it includes more determination thresholds.

In the threshold setting unit 31, a plurality of thresholds are set for each of the carbon monoxide concentration, the smoke concentration, and the temperature.
In the present embodiment, the following threshold values are set. The carbon monoxide concentration includes a first threshold, a second threshold lower than the first threshold, an activation threshold lower than the second threshold, and a seventh threshold lower than the first threshold and higher than the second threshold. An eighth threshold value that is lower than the seventh threshold value and higher than the second threshold value is set, and the smoke density is set to a third threshold value, a fourth threshold value that is lower than the third threshold value, and lower than the third threshold value and higher than the fourth threshold value. A higher ninth threshold is set, and a fifth threshold, a sixth threshold lower than the fifth threshold, and a tenth threshold lower than the fifth threshold and higher than the sixth threshold are set for the temperature. The first threshold value to the tenth threshold value are determination threshold values.
The threshold setting unit 31 is connected to the activation unit 32 and the fire determination unit 41 by wire or wirelessly. The activation threshold value is transmitted to the activation unit 32, and the determination threshold value (the first threshold value to the tenth threshold value) is transmitted to the fire determination unit 41.

The fire determination unit 41 is activated and starts determination when the occupant determination unit 42 determines that there is a resident or receives an activation signal from the activation unit 32. As described above, the fire determination unit 41 suppresses power consumption and reduces operation time when it is determined that there is a resident or until the carbon monoxide concentration reaches a predetermined value. To extend the service life.
The fire determination unit 41 determines that a fire has occurred when any of the following results is obtained.
1) When the state where the carbon monoxide concentration exceeds the first threshold value continues for a predetermined time.
2) When the smoke concentration exceeds the third threshold for a predetermined time.
3) When the temperature exceeds the fifth threshold for a predetermined time and the differential heat detector 9 detects a fire.
4) A state where the carbon monoxide concentration exceeds the second threshold continues for a predetermined time, a state where the smoke concentration exceeds the fourth threshold continues for a predetermined time, and a state where the temperature exceeds the sixth threshold. When it lasts for a predetermined time.
5) The state where the carbon monoxide concentration exceeds the seventh threshold continues for a predetermined time, and the state where the smoke concentration exceeds the ninth threshold continues for a predetermined time.
6) A state where the carbon monoxide concentration exceeds the eighth threshold value continues for a predetermined time, and a state where the temperature exceeds the tenth threshold value continues for a predetermined time.

Here, FIG. 7 is a diagram showing the relationship between the threshold value and the fire detection time in the fire extinguishing apparatus, FIG. 7 (a) shows the relationship between the carbon monoxide concentration and the fire detection time, and FIG. 7 (b) is the smoke concentration. And FIG. 7C shows the relationship between temperature and fire detection time. The vertical axis represents carbon monoxide concentration, smoke concentration, or temperature, and the horizontal axis represents fire detection time.
As shown in FIG. 7, the fire detection time can be shortened as the threshold value is set lower, but the possibility of erroneous detection increases when the threshold value is set lower. Therefore, as in the present embodiment, the first threshold value and the second threshold value lower than the first threshold value are provided as the carbon monoxide concentration determination threshold value, and the second threshold value is used to determine the fire by combining the smoke concentration and temperature information. By doing so, it is possible to prevent an increase in false detection when the threshold value for determining the carbon monoxide concentration is set low. Therefore, the threshold value for determining the carbon monoxide concentration can be set low, and even a fire such as a smoldering fire in which the heat is not so high and the carbon monoxide concentration is increased can be detected early. Further, by increasing the number of thresholds and combinations of determinations, it is possible to detect fire early and automatically extinguish it while further reducing false detection.

FIG. 8 is a flowchart showing a processing flow of the fire determination unit 41 of the fire extinguisher.
When the occupant determination unit 42 determines that the occupant is present, or when the activation unit 32 determines that the state in which the carbon monoxide concentration exceeds the activation threshold continues for a predetermined time, the fire determination unit 41. Is activated and determination is started (step 101).
The fire determination unit 41 activated in step 101 determines whether or not the state in which the carbon monoxide concentration exceeds the second threshold has continued for a predetermined time (step 102).
If it is determined in step 102 that the state in which the carbon monoxide concentration exceeds the second threshold has not continued for a predetermined time, it is determined whether or not the state in which the smoke concentration has exceeded the third threshold has continued for a predetermined time ( Step 103).
If it is determined in step 103 that the state in which the smoke density exceeds the third threshold has continued for a predetermined time, it is determined that a fire has occurred (step 104).
If it is determined in step 103 that the state where the smoke density exceeds the third threshold has not continued for a predetermined time, it is determined whether or not the state where the temperature exceeds the fifth threshold has continued for a predetermined time (step 105). ).
If it is determined in step 105 that the state where the temperature exceeds the fifth threshold has continued for a predetermined time, it is determined whether or not the differential heat sensor 9 has detected a fire (step 106).
If it is determined in step 106 that the differential heat detector 9 has detected a fire, it is determined that a fire has occurred (step 107).
If it is determined in step 106 that the differential heat detector 9 has not detected a fire, it is determined that no fire has occurred (step 108).
If it is determined in step 105 that the temperature exceeding the fifth threshold has not continued for a predetermined time, it is determined that no fire has occurred (step 109).
If it is determined in step 102 that the state in which the carbon monoxide concentration exceeds the second threshold has continued for a predetermined time, it is determined whether or not the state in which the carbon monoxide concentration has exceeded the eighth threshold has continued for a predetermined time. (Step 110).
If it is determined in step 110 that the state in which the carbon monoxide concentration exceeds the eighth threshold has not continued for a predetermined time, the state in which the smoke concentration has exceeded the fourth threshold continues for the predetermined time, and the temperature is It is determined whether or not the state exceeding the six thresholds has continued for a predetermined time (step 111).
If it is determined in step 111 that the smoke density exceeds the fourth threshold for a predetermined time and the temperature exceeds the sixth threshold for a predetermined time, it is determined that a fire has occurred ( Step 112).
When it is determined in step 111 that the state where the smoke density exceeds the fourth threshold does not continue for a predetermined time, or the state where the temperature exceeds the sixth threshold does not continue for a predetermined time Step 103 is performed.
If it is determined in step 110 that the state in which the carbon monoxide concentration exceeds the eighth threshold has continued for a predetermined time, it is determined whether the state in which the carbon monoxide concentration has exceeded the seventh threshold has continued for a predetermined time. (Step 113).
If it is determined in step 113 that the state in which the carbon monoxide concentration exceeds the seventh threshold has not continued for a predetermined time, it is determined whether or not the state in which the temperature has exceeded the tenth threshold has continued for a predetermined time ( Step 114).
If it is determined in step 114 that the temperature exceeding the tenth threshold has continued for a predetermined time, it is determined that a fire has occurred (step 115).
If it is determined in step 114 that the state where the temperature exceeds the tenth threshold value has not continued for a predetermined time, step 103 is performed.
If it is determined in step 113 that the state in which the carbon monoxide concentration exceeds the seventh threshold has continued for a predetermined time, it is determined whether or not the state in which the carbon monoxide concentration has exceeded the first threshold has continued for a predetermined time. (Step 116).
If it is determined in step 116 that the state in which the carbon monoxide concentration exceeds the first threshold value has continued for a predetermined time, it is determined that a fire has occurred (step 117).
If it is determined in step 116 that the state in which the carbon monoxide concentration exceeds the first threshold has not continued for a predetermined time, it is determined whether or not the state in which the smoke concentration has exceeded the ninth threshold has continued for a predetermined time. (Step 118).
If it is determined in step 118 that the smoke density has exceeded the ninth threshold for a predetermined time, it is determined that a fire has occurred (step 119).
If it is determined in step 118 that the smoke density has not exceeded the ninth threshold value for a predetermined time, step 103 is executed.

The fire extinguishing device of the present invention can be applied as a fire detection device with a watching function in a general residence, a hospital, a company building, or an automatic fire extinguishing device with a watching function.

α Warning zone 1 Automatic fire extinguishing device 2 Reception panel 3 Remote monitoring device 3A Safety confirmation unit 4 Entrance door 5 Extinguishing agent container 6 Discharge nozzle 7 Extinguishing agent piping 8 Extinguishing signal transmission unit 9 Differential heat detector 10 Fire monitoring unit 21 Human sensor 22 Thermo sensor 23 Acceleration sensor 31 Threshold setting unit 32 Start-up unit 33 Transmission unit 40 Determination unit 41 Fire determination unit 42 Resident determination unit 80 Interrogation unit

Claims (6)

1. A fire detection device for detecting the occurrence of a fire,
   A fire monitoring unit that detects carbon monoxide concentration, smoke concentration, and temperature in the alert zone;
   A threshold setting unit in which threshold values for the carbon monoxide concentration, the smoke concentration, and the temperature are set;
   A fire determination unit that determines the occurrence of a fire by comparing the threshold set by the threshold setting unit with the carbon monoxide concentration detected by the fire monitoring unit, the smoke concentration, or the temperature;
   A transmitter for transmitting a fire signal when the fire determination unit determines that the fire has occurred; and
   A human sensor for detecting occupants in the alert zone;
   A thermosensor for detecting the temperature of the occupant;
   Based on the detection result of the human sensor and the detection result of the thermo sensor, an occupant determination unit that performs the presence / absence determination of the occupant and the state determination of the occupant,
   With
   The occupant determination unit performs the state determination of the occupant when the fire determination unit determines that the fire has occurred,
   The said transmission part transmits the result of the said state determination of the said occupant while transmitting the said fire signal, The fire detection apparatus characterized by the above-mentioned.
2. Comprising an acceleration sensor installed at the entrance door of the warning section;
   In the presence / absence determination of the occupant, the occupant determination unit
   After the opening / closing of the entrance door is detected by the acceleration sensor, it is determined that the occupant is present when the human sensor reacts within the predetermined time,
   2. The apparatus according to claim 1, wherein after the opening / closing of the entrance door is detected by the acceleration sensor, it is determined that the occupant does not exist when the human sensor does not react within a predetermined time. The fire detection device described.
3. When the occupant determination unit determines that the occupant is present in the presence / absence determination in a state where the fire determination unit has not determined that the fire has occurred, the occupant determination unit performs the state determination at regular intervals. Done
   The fire detection device according to claim 1, wherein the transmitting unit transmits an emergency signal when it is determined in the state determination that the occupant is in an abnormal state.
4. 4. The fire detection device according to claim 2, wherein the occupant determination unit is activated when the opening / closing of the entrance door is detected by the acceleration sensor.
5. An automatic fire extinguishing device comprising the fire detection device according to any one of claims 1 to 4,
   A fire extinguisher container filled with a fire extinguisher,
   A discharge nozzle for discharging the extinguishing agent to the alert zone;
   A fire extinguisher pipe connecting the fire extinguisher container and the discharge nozzle;
   When receiving the fire signal, a fire extinguishing signal transmitter for transmitting an opening signal instructing the opening of the fire extinguisher container;
   An automatic fire extinguishing device characterized by comprising:
6. An automatic fire extinguishing device according to claim 5;
   A remote monitoring device installed outside the alert zone;
   With
   The remote monitoring device has a safety confirmation unit that transmits a safety confirmation signal to the automatic fire extinguishing device when it is timed when the occupant determination unit determines that the occupant is present,
   The automatic fire extinguishing device emits a call such as sound, light, vibration, etc. in the warning area when the safety confirmation signal is received, and responds when the resident responds to the call. An interrogation unit for transmitting a signal to the safety confirmation unit;
   The automatic safety fire extinguishing system, wherein the safety confirmation unit transmits an emergency signal when the response signal is not received within a predetermined time.
   
   

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