JP2019207474A - Fire receiver, residence fire alarm, and fire warning system - Google Patents

Abstract

To suppress erroneous detection indicating that a fire has occurred.SOLUTION: A fire receiver 1 includes: a storage section 12 for storing a smoking time zone where a probability of smoking in a partition is equal to or more than a threshold in association with partition identification information for identifying the partition; and a storage time control section 134 for allowing a storage time being a time from reception of sensing information to an output of alarm information indicating occurrence of a fire to be longer in a case where a time when sensing information indicating that smoke has been sensed is received from a sensor for sensing smoke is included in a smoking time zone associated with partition identification information indicating a partition where the sensor is arranged than a case where a time when sensing information is received is not included in a smoking time zone.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a fire receiver, a residential fire alarm, and a fire alarm system.

  When the smoke concentration or temperature level exceeds the fire judgment level, the fire detector sends an accumulation time signal to the fire receiver along with the fire signal. After the accumulation time elapses, the fire receiver sends a fire confirmation signal to the fire detector. A fire detection system for transmission is disclosed (for example, Patent Document 1).

JP-A-9-288781

  From the viewpoint of preventing passive smoking for non-smokers, a smoking time or a smoking place is designated for the purpose of smoking. In the smoking time or smoking place, a large amount of cigarette smoke is generated when many smokers smoke at the same time. Smoke detectors that detect fires due to the generation of smoke sometimes misdetected that a fire had occurred due to a large amount of cigarette smoke.

  Then, this invention is made | formed in view of these points, and it aims at providing the technique which suppresses misdetecting that a fire broke out.

  In the first aspect of the present invention, the storage unit stores a smoking time period in which the probability of smoking in the section is equal to or greater than a threshold value in association with the section identification information for identifying the section, and a sensor that detects smoke. The time at which the detection information indicating that smoke is detected is included in the smoking time zone associated with the section identification information indicating the section in which the sensor is installed. An accumulation time control unit that increases the accumulation time, which is the time from when the sensing information is received until the output of alarm information indicating that a fire has occurred, than when not included in the smoking time zone, Provide a fire receiver with.

  An information acquisition unit that acquires smoking information indicating that smoking has been performed in association with the block identification information, and the information acquisition unit is associated with the same block identification information in each of a plurality of time zones. Based on the number of times of acquisition, the estimation unit that estimates the probability corresponding to the section identification information in each time zone, and the time zone in which the probability estimated by the estimation unit is greater than or equal to a threshold is set as the smoking time zone A storage control unit that is stored in the storage unit in association with the partition identification information.

  For example, the estimation unit estimates that the probability is equal to or greater than the threshold when the number of times the smoking information is acquired within a predetermined time is equal to or greater than a predetermined number of smoking.

  For example, the information acquisition unit acquires the smoking information via a relay device that has received the smoking information indicating that the heating type smoking tool is smoking.

  The information acquisition unit acquires the smoking information in association with smoking tool identification information for identifying the heating-type smoking tool, and the estimation unit identifies the smoking tool that is the same in the same time zone as the information acquisition unit. When the smoking information associated with the information is acquired a plurality of times, the probability may be estimated based on the number of times subtracted from the acquired number of times.

  The accumulation time control unit may make the accumulation time in the smoking time zone on a holiday shorter than the accumulation time in the smoking time zone on weekdays.

  The fire receiver further includes a sensitivity control unit configured to make the sensitivity of the sensor detecting smoke during the smoking time period slower than the sensitivity of the sensor detecting smoke during a time period not included in the smoking time period. You may prepare.

  In the second aspect of the present invention, the sensing unit that senses smoke generated in the installed section, the output unit that outputs alarm information indicating that a fire has occurred, and the probability of being smoked is greater than or equal to a threshold value. A storage unit that stores a smoking time zone and a time when the sensing unit senses smoke is included in the smoking time zone, compared to a case where the time when the sensing unit senses smoke is not included in the smoking time zone An accumulation time control unit that increases an accumulation time, which is a time from when the sensing unit senses smoke until the alarm information is output, and after the accumulation time has elapsed since the sensing unit sensed smoke And an output control unit that outputs the alarm information to the output unit when the detection unit detects smoke.

  In a third aspect of the present invention, the apparatus includes a plurality of sensors that detect smoke generated in an installed section, and a fire receiver that outputs alarm information indicating that a fire has occurred, and the plurality of sensors. When each unit senses the occurrence of smoke, it sends sensing information indicating that smoke has been sensed to the fire receiver, and the fire receiver associates with the zone identification information identifying the zone, A storage unit that stores a smoking time zone in which a probability of smoking is equal to or greater than a threshold value, and a time at which the detection information is received from the sensor are associated with the block identification information indicating the block in which the sensor is installed. When included in the smoking time zone, an accumulation time that is a time from receiving the sensing information to outputting the alarm information, compared to when the time when the sensing information is received is not included in the smoking time zone The longer And accumulation time control unit that provides a fire alarm system having a.

  You may further provide the relay apparatus which transmits the said during smoking information to the said fire receiver according to having received from the heating type smoking tool the information during smoking which shows that smoking is performed.

  According to the present invention, it is possible to suppress erroneous detection that a fire has occurred.

It is a figure for demonstrating the structure of a fire alerting | reporting system. It is a figure which shows the structure of a heating type smoking tool and a relay apparatus. It is a figure which shows the structure of a fire receiver. It is a figure which shows typically the data table which shows the smoking time slot | zone linked | related with division identification information. It is a flowchart of the process which memorize | stores a smoking time slot | zone. It is a flowchart of the process which outputs warning information. It is a figure which shows the structure of the fire alarm for houses which concerns on 2nd Embodiment.

[Outline of Fire Receiver According to Embodiment]
From the viewpoint of prevention of passive smoking for non-smokers, a large amount of cigarette smoke is generated when a large number of smokers smoke at the smoking time or smoking place set for the purpose of smoking. When a large amount of cigarette smoke is generated, the time required for the cigarette smoke to diffuse into the air and the concentration of smoke in the air to decrease is lengthened. Therefore, the conventional fire receiver has a concentration for determining that the smoke concentration of the cigarette smoke in the air is the fire smoke after the accumulation time has elapsed since the smoke detector sensed the smoke. If it did not fall below the upper limit, tobacco smoke could be misdetected as fire smoke.

  Therefore, the fire receiver according to the embodiment stores a smoking time zone in which the probability of smoking in a section is equal to or greater than a threshold in association with the section identification information for identifying the section. Then, when the time when the fire information is received from the sensor is included in the smoking time zone associated with the zone identification information indicating the zone where the sensor is installed, the fire receiver recognizes the time when the sensor information is received. The accumulation time is made longer than when it is not included in the time zone.

  In this way, even if a large number of smokers smoke at the same time and a large amount of cigarette smoke is generated, the fire receiver diffuses into the air. The time required until the smoke concentration decreases below the upper limit value can be ensured. Therefore, the fire receiver can suppress erroneous detection of cigarette smoke as fire smoke.

<First Embodiment>
[Configuration of fire alarm system S]
Hereinafter, the fire alarm system S according to the first embodiment will be described with reference to FIGS. 1, 2, and 3. FIG. 1 is a diagram for explaining the configuration of the fire alarm system S. The fire alarm system S includes a fire receiver 1 that outputs alarm information indicating that a fire has occurred, a sensor 2 that detects smoke generated in the installed section R, and a relay device 4. In the present embodiment, the case where the user smokes with the heating smoking tool 3 in the section R will be described as an example, but the function of the fire alarm system S also when the user smokes tobacco other than the heating smoking tool 3. Can be applied.

(Process to estimate smoking time zone)
The fire alarm system S stores an initial value of an accumulation time corresponding to each of a plurality of time zones (for example, time zones divided every 5 minutes). The fire alarm system S estimates the probability of smoking in the section R in each of a plurality of time zones. The fire notification system S estimates that a time zone in which the probability of smoking in the section R is greater than or equal to a threshold is a smoking time zone. Then, the fire notification system S updates the estimated accumulation time in the smoking time zone to a new accumulation time that is longer than the accumulation time in the time zone other than the smoking time zone from the initial value of the accumulation time. The fire alarm system S updates the accumulation time of each time zone every time the probability of smoking in the section R is updated.

  The fire receiver 1 and the sensor 2 are connected by a dedicated signal line. The dedicated signal line is, for example, a heat-resistant heat-resistant electric wire having a heat resistance and a fire alarm line. The fire receiver 1 and the relay device 4 are connected by a communication line different from a dedicated signal line, for example. The fire receiver 1 and the relay device 4 may be connected by a wireless communication line. Note that the relay device 4 may have the function of the sensor 2. When the relay device 4 has the function of the sensor 2, the fire receiver 1 and the relay device 4 are connected by a fire alarm line which is a dedicated signal line.

  The heating smoking tool 3 and the relay device 4 are connected by a wireless communication line. The standard of the wireless communication line is, for example, Bluetooth Low Energy (Bluetooth is a registered trademark), but is not limited thereto. When the user turns on the power of the heating smoking tool 3 for smoking, the heating smoking tool 3 relays a beacon signal (for example, an advertising packet in Bluetooth) including information during smoking indicating that the user is smoking. 4 to send. When the relay device 4 receives the beacon signal from the heating smoking device 3, the relay device 4 checks whether or not the smoking information is included in the beacon signal. It is determined that the device 3 is smoking with the tool 3.

  FIG. 2 is a diagram illustrating the configuration of the heating smoking tool 3 and the relay device 4. The heating smoking tool 3 includes a power supply unit 31, a heating unit 32, a signal transmission unit 33, and a smoking tool control unit 34. Although the power supply part 31 is a power supply which supplies electric power to each function structure part of the heating type smoking implement 3, for example, it is a lithium ion secondary battery, It is not limited to this. The heating unit 32 is a heater for heating the tobacco leaf.

  The signal transmission unit 33 is, for example, a Bluetooth module. The signal transmission part 33 transmits the beacon signal containing the information during smoking which shows that it is smoking, when the power supply of the heating-type smoking tool 3 turns on. The signal transmission unit 33 may periodically transmit a beacon signal including information during smoking while the user is smoking using the heating smoking device 3.

  The smoking tool control unit 34 is, for example, a CPU (Central Processing Unit). The smoking tool control unit 34 controls each functional component of the heating smoking tool 3 by executing a program stored in a storage unit (not shown). For example, when the smoking tool control unit 34 determines that a power button (not shown) provided in the heating smoking tool 3 is pressed, the smoking tool control unit 34 heats the heating unit 32 and sends a beacon signal including information during smoking to the signal transmission unit 33. Send it.

  The relay device 4 includes a power supply unit 41, a signal reception unit 42, a storage unit 43, a timer unit 44, a relay device control unit 45, and an information transmission unit 46. The power supply unit 41 is a power supply that supplies power to each functional component of the relay device 4 and is, for example, a lithium ion secondary battery, but is not limited thereto.

  The signal receiving unit 42 is a Bluetooth module, for example. The signal receiving unit 42 notifies the relay device control unit 45 of the beacon signal received from the heating smoking tool 3.

  The storage unit 43 includes storage media such as a ROM (Read Only Memory), a RAM (Random Access Memory), and a hard disk. The storage unit 43 stores a program executed by the relay device control unit 45. The storage unit 43 stores section identification information for identifying the section R in which the relay device 4 is installed. The timer 44 outputs time information indicating the current time to the relay device controller 45.

  The information transmission unit 46 is, for example, a LAN (Local Area Network) module. The information transmission unit 46 transmits smoking information indicating that the user has smoked to the fire receiver 1. Details of the smoking information will be described later.

  The relay device control unit 45 is, for example, a CPU. The relay device control unit 45 controls each functional component of the relay device 4 by executing a program stored in the storage unit 43. The relay device control unit 45 specifies that the heating smoking tool 3 is smoking when the signal receiving unit 42 receives the smoking information from the heating smoking tool 3. The relay apparatus control part 45 specifies that smoking was started, when the signal receiving part 42 received smoking start information from the heating type smoking tool 3 in the condition where the smoking type 3 is not smoked. When the heating-type smoking tool 3 continuously transmits smoking information during smoking, the relay device control unit 45 does not transmit information during smoking from the heating-type smoking tool 3 that has transmitted the smoking information. May be identified as a period of continued smoking.

  The relay device control unit 45 specifies that smoking has been started based on the smoking information received from the heating smoking device 3 and causes the information transmission unit 46 to transmit smoking information. For example, the relay device control unit 45 instructs the information transmission unit 46 to transmit smoking information including the zone identification information stored in the storage unit 43 and the time when smoking is started to the fire receiver 1. The relay device control unit 45 may cause the information transmission unit 46 to transmit smoking information including the zone identification information and the period during which smoking is performed. In addition, when the relay apparatus 4 and the fire receiver 1 are connected on a one-to-one basis, the relay apparatus control unit 45 does not have to transmit the section identification information to the information transmission unit 46.

  FIG. 3 is a diagram illustrating the configuration of the fire receiver 1. The fire receiver 1 includes a communication unit 11, a storage unit 12, a control unit 13, and an alarm output unit 14. The communication unit 11 includes a sensing information receiving unit 111 and a smoking information receiving unit 112. The sensing information receiving unit 111 is a communication interface that receives sensing information from the sensor 2 via a dedicated signal line. The smoking information receiving unit 112 is a LAN module, for example. The smoking information receiving unit 112 receives smoking information from the relay device 4. The smoking information receiving unit 112 may further receive section identification information associated with the smoking information or time information associated with the smoking information. The alarm output unit 14 outputs alarm information as a main sound (buzzer).

  The storage unit 12 includes storage media such as a ROM, a RAM, and a hard disk. The storage unit 12 stores a program executed by the control unit 13. The storage unit 12 stores the smoking time zone in which the probability of smoking in the section R is greater than or equal to the threshold in association with the section identification information for identifying the section R. FIG. 4 is a diagram schematically illustrating a data table indicating the smoking time zone associated with the section identification information. For example, as shown in FIG. 4, the section name “2F smoking room” that is the section identification information is associated with “8:30 to 9:00” and “12:30 to 13:00” indicating the smoking time zone. It has been.

  The control unit 13 is a CPU, for example. The control unit 13 functions as an information acquisition unit 131, an estimation unit 132, a storage control unit 133, an accumulation time control unit 134, and an output control unit 135 by executing a program stored in the storage unit 12.

  The information acquisition unit 131 acquires smoking information indicating that smoking has been performed in association with the block identification information. For example, the information acquisition unit 131 acquires smoking information via the relay device 4 that has received the smoking information transmitted by the heating smoking tool 3. Moreover, the information acquisition part 131 may acquire smoking information via the relay apparatus 4 which received the smoking start information which the heating type smoking tool 3 transmitted.

  The estimation unit 132 estimates the probability of smoking in the section R in each of a plurality of time zones. For example, based on the number of times that the information acquisition unit 131 acquires smoking information in association with the same section identification information in each of a plurality of time zones, the estimation unit 132 has a probability corresponding to the section identification information in each time slot. Is estimated. Specifically, when the number of times that the estimation unit 132 acquires smoking information in association with the same section identification information within a predetermined time corresponding to the length of each time zone is equal to or greater than the predetermined number of smoking times, It is estimated that the probability is equal to or greater than a threshold value.

  The length of each of the plurality of time zones is determined based on the accuracy required for estimating the smoking time zone, and is, for example, 5 minutes. The predetermined number of times of smoking may be determined as appropriate by the operator operating the fire alarm system S, but may be determined by the estimation unit 132. For example, the estimation part 132 determines the average value of the number of smoking information acquired in each time slot | zone of a some time slot | zone as a predetermined smoking count. The estimation unit 132 may determine a predetermined number of smoking based on the amount of smoke generated per cigarette and the sensitivity with which the sensor 2 senses smoke. For example, the estimation unit 132 determines a predetermined number of times of smoking based on the number of cigarettes that generate smoke equal to or higher than the smoke concentration detected by the fire receiver 1 as fire smoke.

  The estimation unit 132 may estimate the probability of smoking in a section based on a change in the number of times that smoking information is acquired in association with the same section identification information within a predetermined time corresponding to a plurality of time zones. For example, when the number of times that the smoking information has been acquired is increased by a predetermined number or more compared to the immediately preceding time zone, the estimation unit 132 has a probability that the probability of being smoked in the time zone after the number of times that the smoking information has been acquired is greater than or equal to the threshold It is estimated that. When the number of acquisitions of smoking information increases, it is considered that a plurality of smokers started smoking at the same time, and therefore the estimation unit 132 can estimate that the smoking time zone has started.

  The storage control unit 133 causes the storage unit 12 to store the time zone in which the probability estimated by the estimation unit 132 is equal to or greater than the threshold as the smoking time zone in association with the partition identification information. Hereinafter, the process which memorize | stores the smoking time slot | zone which the control part 13 performs in the memory | storage part 12 is demonstrated. FIG. 5 is a flowchart of processing for storing a smoking time zone.

  First, the information acquisition part 131 acquires the smoking information linked | related with division identification information from the relay apparatus 4 which received the information during smoking which the heating type smoking tool 3 transmitted (step S1). Subsequently, the estimation unit 132 determines whether or not the number of acquisitions of smoking information associated with the same section identification information within a predetermined time is greater than or equal to the predetermined number of smoking (step S2). If the estimation unit 132 determines that the number of times the smoking information has been acquired is less than the predetermined number of smoking (No in step S2), the process ends.

  If the estimation unit 132 determines that the number of times the smoking information has been acquired is equal to or greater than the predetermined number of smoking (Yes in step S2), the estimation unit 132 estimates that the probability of smoking in the section R indicated by the section identification information is greater than or equal to the threshold ( Step S3). And the memory | storage control part 133 memorize | stores in the memory | storage part 12 as a smoking time slot | zone as the time slot | zone which the estimation part 132 estimated that the probability smoked by the division R is more than a threshold value (step S4). In addition, the control part 13 performs the process of step S2 to S4 in each of several time slot | zones.

(Process to determine accumulation time)
Then, the process which controls accumulation | storage time based on the smoking time zone which the estimation part 132 estimated as mentioned above is demonstrated. The accumulation time control unit 134 is an accumulation time that is a time from when the sensor 2 senses smoke until it outputs alarm information indicating that a fire has occurred, based on the smoking time zone stored in the storage unit 12. To decide. The accumulation time control unit 134 determines whether or not the time when the sensing information is received from the sensor 2 is included in the smoking time zone associated with the zone identification information indicating the zone R where the sensor 2 is installed, The accumulation time is determined based on the determined result.

  When the time when the sensing information is received is included in the smoking time zone, the accumulation time control unit 134 makes the accumulation time longer than when the time when the sensing information is received is not included in the smoking time zone. For example, the accumulation time control unit 134 uses the information acquisition unit 131 in the time zone estimated by the estimation unit 132 as the smoking time zone based on the accumulation time when the time when the sensing information is received is not included in the smoking time zone. The longer the smoking information is acquired, the longer the accumulation time. Specifically, the accumulation time control unit 134 lengthens the accumulation time according to the ratio between the number of times smoking information is acquired in the time zone estimated to be the smoking time zone and the predetermined number of smoking times. By doing so, the fire alarm system S has a large number of cigarettes smoked in the section R, and even if a large amount of cigarette smoke is generated in the section R, the cigarette smoke diffuses into the air. Thus, it is possible to secure the time required until the smoke concentration falls below the upper limit value.

  For example, the accumulation time control unit 134 determines the accumulation time by adding an extension time determined based on the amount of smoke generated by smoking to the reference accumulation time. The time required for the concentration of smoke generated by smoking to fall below the concentration upper limit is correlated with the number of times the information acquisition unit 131 has acquired smoking information during the smoking time period. Therefore, for example, the accumulation time control unit 134 determines the extension time based on the number of times the information acquisition unit 131 has acquired smoking information in the smoking time zone. A specific value of the reference accumulation time is, for example, 40 seconds, and a specific value of the extension time is, for example, 10 seconds, 20 seconds, or 30 seconds.

  The output control unit 135 outputs alarm information when further sensing information is received from the sensor 2 after the accumulation time has elapsed since the sensing information receiving unit 111 received the sensing information from the sensor 2. The output control unit 135 does not output alarm information when no sensing information is received from the sensor 2 before the accumulation time elapses after the sensing information is received from the sensor 2. In a case where the sensing information is newly received after the sensing information is not received before the accumulation time elapses, the output control unit 135 may set the time when the sensing information is newly received as the starting time of the accumulation time. By doing in this way, when the fire alarm system S receives the detection information from the sensor 2 due to the start of new smoking until the accumulation time elapses, the fire notification system S Can be prevented from being erroneously detected.

  The output control unit 135 outputs alarm information to the alarm output unit 14. Further, the output control unit 135 outputs alarm information to the alarm device 6 installed in the section R. The alarm device 6 is, for example, a speaker. The alarm device 6 may be an optical alarm device that outputs alarm information by blinking the light emitting unit. Hereinafter, the process which outputs the alarm information which the control part 13 performs is demonstrated. FIG. 6 is a flowchart of processing for outputting alarm information.

(Process to output alarm information)
First, the sensing information receiving unit 111 receives sensing information from the sensor 2 (step S11). The accumulation time control unit 134 determines whether or not the time when the sensing information is received is included in the smoking time zone (step S12). If the accumulation time control unit 134 determines that the time when the sensing information is received is included in the smoking time zone (Yes in step S12), the accumulation time control unit 134 proceeds to step S13. The accumulation time control unit 134 determines the accumulation time in the smoking time zone as an extended accumulation time that is longer than the accumulation time in the time zone not included in the smoking time zone (step S13). If the accumulation time control unit 134 determines that the time at which the sensing information is received is not included in the smoking time zone (No in step S12), the accumulation time control unit 134 proceeds to step S14.

  The output control unit 135 determines whether or not the accumulation time has elapsed after receiving the sensing information (step S14). If the output control unit 135 determines that the accumulation time has not elapsed since receiving the sensing information (No in step S14), the output control unit 135 waits until the accumulation time has elapsed. If the output control unit 135 determines that the accumulation time has elapsed since receiving the sensing information (Yes in step S14), the output control unit 135 determines whether the sensing information receiving unit 111 has received the sensing information (step S15). .

  If the output control unit 135 determines that the sensing information receiving unit 111 is receiving sensing information from the sensor 2 (Yes in step S15), the output control unit 135 outputs alarm information (step S16). If the output control unit 135 determines that the sensing information receiving unit 111 has not received the sensing information (No in step S15), the output control unit 135 ends the process of outputting the alert information without outputting the alert information.

(Modification 1)
In the above description, it is assumed that a large number of smokers smoke at the same time within a predetermined time, but only one smoker may smoke a plurality of times within a predetermined time. In this case, multiple smoking by the same smoker is presumed not to be smoked at the smoking place or smoking time. Therefore, when the smoking information by the same smoker is acquired a plurality of times, the fire alarm system S estimates the probability of smoking based on the number of times subtracted from the acquired number. In this case, the information acquisition unit 131 acquires smoking information in association with the smoking tool identification information for identifying the heating smoking tool 3.

  When the estimation unit 132 acquires the smoking information indicating that the smoking tool 3 indicated by the same smoking tool identification information has been smoked a plurality of times, the number of times of smoking in the section R is less than the acquired number of times. The probability of smoking in the section R is estimated assuming the number of times. For example, when the information acquisition unit 131 acquires smoking information associated with the same smoking article identification information a plurality of times in the same time zone, the estimation unit 132 subtracts a predetermined number of subtractions from the acquired number of times. Probability is estimated based on this. Moreover, when the estimation part 132 acquired the smoking information linked | related with the same smoking tool identification information in multiple times, it is assumed that the smoking information linked | related with the same smoking tool identification information was acquired once in the same time slot | zone. The probability may be estimated.

  By doing in this way, when the place where it was smoked is not the place where many people smoke, or when the time when it was smoked is not the time zone when many people smoke at the same time, Do not memorize as smoking time zone. Therefore, the fire notification system S can notify the occurrence of fire at an early stage without erroneously detecting the smoke caused by the fire as the smoke of the cigarette at a place other than the smoking place or a time zone other than the smoking time.

(Modification 2)
The number of people present in the building where the fire alarm system S is installed may increase or decrease depending on the day of the week. For example, in a building where a general company occupies, the number of people working on holidays is smaller than the number of people working on weekdays. If the number of workers is small, the number of smokers who smoke at the same time in the smoking area will be reduced. If the number of smokers who smoke at the same time is small, the amount of cigarette smoke that occurs is also reduced, so it is estimated that the time it takes for the cigarette smoke to diffuse into the air and the smoke concentration to fall below a predetermined concentration is also shortened .

  Therefore, the accumulation time control unit 134 may change the accumulation time in the smoking time zone for each of a plurality of days of the week. For example, the accumulation time control unit 134 determines the accumulation time in the smoking time zone for each of the plurality of days according to the ratio of the number of times smoking information has been acquired within a predetermined time on each of the plurality of days of the week. Specifically, the accumulation time control unit 134 makes the accumulation time in the smoking time zone on holidays shorter than the accumulation time in the smoking time zone on weekdays. For example, the accumulation time control unit 134 shortens the accumulation time based on the ratio between the number of times smoking information is acquired within a predetermined time on a holiday and the number of times smoking information is acquired within a predetermined time on weekdays.

  By doing in this way, the fire alarm system S accumulates in the smoking time zone on holidays where it is estimated that the time from when the sensor 2 senses smoke until the smoke concentration falls below the concentration upper limit value is shortened. Reduce time. Therefore, the fire alarm system S can suppress erroneous detection of cigarette smoke as fire smoke even on holidays and can detect fire early.

(Modification 3)
When a large number of smokers smoke at the same time, it is estimated that the concentration of smoke contained in the air increases because more tobacco smoke is generated. Therefore, the fire receiver 1 reduces the sensitivity with which the sensor 2 detects smoke in the smoking time zone. For example, the control unit 13 executes the program stored in the storage unit 12 so that the sensitivity of the sensor 2 for detecting smoke in the smoking time zone is set so that the sensor 2 is detected in the time zone not included in the smoking time zone. It functions as a sensitivity control unit that makes it slower than the sensitivity to detect smoke.

  For example, the sensitivity control unit increases the concentration upper limit value for determining fire smoke set in the sensor 2. Specifically, the sensitivity control unit increases the concentration upper limit value in the time zone included in the smoking time zone on the basis of the concentration upper limit value in the time zone not included in the smoking time zone. More specifically, the sensitivity control unit increases the concentration upper limit value based on the smoke concentration estimated based on the number of smoking information acquired by the estimation unit 132 in the smoking time zone. The sensitivity control unit increases the concentration upper limit value so as to be equal to or higher than the smoke concentration based on the number of cigarettes estimated to be smoked in the smoking time zone.

  By doing in this way, the sensor 2 does not transmit sensing information even if the density | concentration of the smoke of the tobacco contained in air becomes high in the smoking time zone. Therefore, the fire alarm system S can suppress erroneous detection of cigarette smoke as fire smoke.

(Modification 4)
The fire alarm system S may not include the relay device 4 by providing the sensor 2 with the function of the relay device 4. By doing in this way, since the operator who operates the fire alarm system S can install the fire alarm system S, the number of components can be reduced and the man-hours related to the installation can be reduced. Can be reduced.

(Modification 5)
The fire notification system S may include a camera that images the section R, and the fire receiver 1 may estimate the probability of smoking in the section R based on the analysis result obtained by analyzing the captured image captured by the camera. Specifically, first, the fire receiver 1 determines whether or not a person present in the section R has smoked based on the analysis result. When the fire receiver 1 determines that a person existing in the section R has smoked, the probability that the fired image of the captured image determined to have smoked is captured in the section R is greater than or equal to a threshold value. presume.

  In addition, the fire alarm system S may include a human sensor that detects whether or not a person is present in the section R. When the fire sensor 1 senses that a person is present in the section R, the fire receiver 1 estimates that the probability of being smoked is equal to or greater than a threshold at the time when the person is sensed. In addition, the fire alarm system S may receive input of smoking information or a smoking time zone from a business operator that operates the fire alarm system S.

[Effect of the fire alarm system S according to the first embodiment]
Thus, the fire alarm system S stores the smoking time zone in which the probability of smoking in the section R is greater than or equal to the threshold value. And when the time which received the sensing information from the sensor 2 which detects smoke is included in the smoking time zone, the fire alarm system S accumulates more than when the time when the sensing information is received is not included in the smoking time zone. Increase time. By doing in this way, even if a large amount of cigarette smoke is generated, the fire alarm system S secures the time required until the smoke of the cigarette diffuses into the air and the concentration of the cigarette smoke decreases. Therefore, it is possible to suppress erroneous detection of cigarette smoke as fire smoke at a smoking place or time.

<Second Embodiment>
The second embodiment is a residential fire alarm 5 that outputs alarm information when smoke is detected. The residential fire alarm 5 stores an initial value of an accumulation time corresponding to each of a plurality of time zones. When the power source is turned on, the residential fire alarm 5 stands by in a state where it can receive a beacon signal including information during smoking from the heating smoking tool 3. When receiving the beacon signal from the heating smoking device 3, the residential fire alarm 5 estimates the probability of smoking in each of a plurality of time zones based on the smoking information included in the beacon signal. The residential fire alarm 5 stores a new accumulation time that is longer than the time zone in which the probability of smoking is less than the threshold during the time zone in which the probability of smoking is estimated to be greater than or equal to the threshold.

  FIG. 7 is a diagram showing a configuration of a residential fire alarm 5 according to the second embodiment. The residential fire alarm 5 includes a signal receiving unit 50, a sensing unit 51, an output unit 52, a storage unit 53, and a control unit 54. The signal receiving unit 50 is, for example, a Bluetooth module. The signal receiving unit 50 notifies the control unit 54 of the beacon signal received from the heating smoking tool 3.

  The sensing unit 51 senses smoke generated in the installed section. When detecting the smoke, the sensing unit 51 transmits sensing information indicating that the smoke is sensed to the control unit 54. The output unit 52 is, for example, a speaker. The output unit 52 outputs alarm information indicating that a fire has occurred. Specifically, the output unit 52 outputs the alarm information as a voice message “It is a fire”. The output unit 52 may output the alarm information as a buzzer sound. The output unit 52 may be a light emitting unit that emits light. When the output unit 52 is a light emitting unit, the output unit 52 outputs alarm information by blinking light.

  The storage unit 53 includes storage media such as a ROM, a RAM, and a hard disk. The storage unit 53 stores a program executed by the control unit 54. The memory | storage part 53 memorize | stores the smoking time slot | zone whose probability of smoking is more than a threshold value.

  The control unit 54 is a CPU, for example. The control unit 54 functions as an estimation unit 540, an accumulation time control unit 541, and an output control unit 542 by executing a program stored in the storage unit 53. The estimation unit 540 has a function equivalent to that of the estimation unit 132 in the first embodiment, and based on the number of times that the signal receiving unit 50 receives a beacon signal including information during smoking from the heating smoking device 3, Estimate the probability of smoking.

  The accumulation time control unit 541 has a function equivalent to that of the accumulation time control unit 134 in the first embodiment, and determines whether or not the time when the sensing unit 51 senses smoke is included in the smoking time zone. Based on the result, the accumulation time is controlled. When it is determined that the time when the sensing unit 51 senses smoke is included in the smoking time zone, the accumulation time control unit 541 senses more than when the time when the sensing unit 51 senses smoke is not included in the smoking time zone. The storage time, which is the time from when the unit 51 senses smoke until the alarm information is output, is lengthened. The output control unit 542 has the same function as the output control unit 135 in the first embodiment, and after the accumulation time has elapsed since the sensing unit 51 sensed smoke, the sensing unit 51 senses smoke. If this happens, alarm information is output.

[Effect of residential fire alarm 5 according to the second embodiment]
In this way, the residential fire alarm 5 extends the accumulation time in the smoking time zone in which the probability of smoking in the section where the residential fire alarm 5 is installed is equal to or greater than the threshold. By doing in this way, since the fire alarm 5 for houses can secure the time required until the smoke of the cigarette diffuses in the air and the concentration is reduced, the smoke of the cigarette is regarded as the fire smoke. It is possible to suppress erroneous detection.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment, A various deformation | transformation and change are possible within the range of the summary. is there. For example, the specific embodiments of device distribution / integration are not limited to the above-described embodiments, and all or a part of them may be configured to be functionally or physically distributed / integrated in arbitrary units. Can do. In addition, new embodiments generated by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effect of the new embodiment produced by the combination has the effect of the original embodiment.

DESCRIPTION OF SYMBOLS 1 Fire receiver 2 Sensor 3 Heating-type smoking tool 4 Relay apparatus 5 Residential fire alarm 6 Alarm device 11 Communication part 12 Storage part 13 Control part 14 Alarm output part 31 Power supply part 32 Heating part 33 Signal transmission part 34 Smoking tool Control unit 41 Power supply unit 42 Signal reception unit 43 Storage unit 44 Timing unit 45 Relay device control unit 46 Information transmission unit 50 Signal reception unit 51 Detection unit 52 Output unit 53 Storage unit 54 Control unit 111 Detection information reception unit 112 Smoking information reception unit 131 Information Acquisition Unit 132 Estimation Unit 133 Storage Control Unit 134 Storage Time Control Unit 135 Output Control Unit 540 Estimation Unit 541 Storage Time Control Unit 542 Output Control Unit S Fire Notification System

Claims (10)

A storage unit that stores a smoking time zone in which the probability of smoking in the section is greater than or equal to a threshold value in association with the section identification information that identifies the section;
When the time of receiving the sensing information indicating that smoke is detected from the sensor that senses smoke is included in the smoking time zone associated with the zone identification information indicating the zone in which the sensor is installed, The storage time, which is the time from receiving the sensing information to outputting alarm information indicating that a fire has occurred, is made longer than when the time when the sensing information is received is not included in the smoking time zone. An accumulation time control unit;
Equipped with a fire receiver. An information acquisition unit that acquires smoking information indicating that smoking has been performed in association with the section identification information;
Estimation that estimates the probability corresponding to the zone identification information in each time zone based on the number of times the information acquisition unit acquires the smoking information in association with the same zone identification information in each of a plurality of time zones. And
A storage control unit that stores a time zone in which the probability estimated by the estimation unit is greater than or equal to a threshold as the smoking time zone in association with the section identification information in the storage unit;
Further comprising
The fire receiver according to claim 1. The estimation unit estimates that the probability is equal to or greater than the threshold when the number of times the smoking information is acquired within a predetermined time is equal to or greater than a predetermined number of smoking.
The fire receiver according to claim 2. The information acquisition unit acquires the smoking information via the relay device that has received the smoking information indicating that the heating smoking tool is smoking.
The fire receiver according to claim 2 or 3. The information acquisition unit acquires the smoking information in association with smoking tool identification information for identifying the heating smoking tool,
When the information acquisition unit acquires the smoking information associated with the same smoking tool identification information a plurality of times in the same time zone, the probability is based on the number of times subtracted from the acquired number of times. Estimate
The fire receiver according to claim 4. The accumulation time control unit makes the accumulation time in the smoking time zone on a holiday shorter than the accumulation time in the smoking time zone on weekdays,
The fire receiver according to any one of claims 1 to 5. A sensitivity control unit configured to make the sensitivity of the sensor detecting smoke during the smoking time period slower than the sensitivity of the sensor detecting smoke during a time period not included in the smoking time period;
The fire receiver according to any one of claims 1 to 6. A sensing unit that senses smoke generated in the installed compartment;
An output unit that outputs alarm information indicating that a fire has occurred;
A storage unit for storing a smoking time zone in which a probability of smoking is equal to or greater than a threshold;
When the time at which the sensing unit senses smoke is included in the smoking time zone, the sensing unit senses smoke more than when the time at which the sensing unit senses smoke is not included in the smoking time zone. An accumulation time control unit that lengthens the accumulation time, which is the time from when the alarm information is output,
An output controller that outputs the alarm information to the output unit when the sensor unit detects smoke after the storage time has elapsed since the sensor unit detected smoke;
A residential fire alarm. A plurality of detectors for detecting smoke generated in the installed section, and a fire receiver for outputting alarm information indicating that a fire has occurred,
When each of the plurality of sensors senses the occurrence of smoke, it sends sensing information indicating that smoke has been sensed to the fire receiver,
The fire receiver is
In association with the zone identification information for identifying the zone, a storage unit that stores a smoking time zone in which the probability of smoking in the zone is greater than or equal to a threshold value;
When the time when the sensor information is received from the sensor is included in the smoking time zone associated with the zone identification information indicating the zone where the sensor is installed, the time when the sensor information is received is the smoking time. An accumulation time control unit that increases the accumulation time, which is the time from when the sensing information is received until the alarm information is output, than when it is not included in the time zone;
Having a fire alarm system. Further comprising a relay device for transmitting the smoking information to the fire receiver in response to receiving the smoking information indicating that smoking is being performed from the heating smoking tool;
The fire alarm system according to claim 9.

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