JP2017174263A - Security system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a security system that can notify a location other than an occurrence source of the carbon monoxide of occurrence of the carbon monoxide.SOLUTION: A security system 100 includes: a plurality of fire alarm devices 1; and a sensor 2. Each of the plurality of fire alarm devices 1 has: a fire detector unit 11; a first communication unit 12; and a first control unit 13. The sensor 2 has a CO detection unit 21; a second communication unit 22; and a second control unit 23. In the sensor 2, the second control unit 23 is configured to, when the CO detection unit 21 detects occurrence of carbon monoxide, transmit a notification signal to the plurality of fire alarm devices 1 via the second communication unit 22. In each of the plurality of fire alarm devices 1, the first control unit 13 is configured to, when the first communication unit 12 receives the notification signal, output a CO linkage alarm, and transmit the notification to other fire alarm device 1 via the first communication unit 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates generally to security systems, and more particularly to a security system comprising a sensor that detects the occurrence of carbon monoxide.

  2. Description of the Related Art Conventionally, a fire alarm system that includes a plurality of fire alarms and transmits a radio signal using a radio wave as a medium between the plurality of fire alarms is known. In the fire alarm system described in Patent Document 1, when a wireless signal including a fire alarm message is transmitted from any of the fire alarms, the specific fire alarm device that has received the wireless signal transmits all other fire alarms. A radio signal including a fire warning message is sent to the device.

  In this way, in the fire alarm system described in Patent Document 1, all fire alarms notify the fire alarm when a fire is detected by at least one fire alarm device.

JP 2013-37707 A

  By the way, in the fire alarm system (security system) as in the conventional example, it is desired to detect not only a fire but also the generation of carbon monoxide. In such a security system, it is desired to notify generation of carbon monoxide to a place other than the generation source of carbon monoxide.

  This invention is made | formed in view of said point, and it aims at providing the security system which can alert | report generation | occurrence | production of carbon monoxide to places other than the generation source of carbon monoxide.

  A security system according to an aspect of the present invention includes a plurality of fire alarms and sensors. Each of the plurality of fire alarms includes a fire detection unit, a first communication unit, and a first control unit. The fire detection unit detects the occurrence of a fire. The first communication unit transmits and receives a radio signal using radio waves as a medium. The first control unit outputs a fire alarm that notifies the occurrence of a fire when the fire detection unit detects the occurrence of a fire. The sensor includes a CO detection unit, a second communication unit, and a second control unit. The CO detector detects the generation of carbon monoxide. The second communication unit transmits and receives the wireless signal. In the sensor, when the CO detection unit detects the generation of carbon monoxide, the second control unit transmits a notification signal to the plurality of fire alarms via the second communication unit. Composed. In each of the plurality of fire alarms, when the first communication unit receives the notification signal, the first control unit outputs a CO-linked alarm that notifies the generation of carbon monoxide at the installation location of the sensor. Configured as follows. And the said 1st control part is comprised so that the said notification signal may be transmitted via the said 1st communication part toward another fire alarm device.

  The present invention can report the generation of carbon monoxide to a place other than the carbon monoxide generation source.

FIG. 1 is a block diagram of a security system according to an embodiment of the present invention. FIG. 2 is a sequence diagram showing the operation of the security system described above. FIG. 3 is a sequence diagram for explaining a fire interlocking function in the above security system. FIG. 4 is an overall view showing an application example of the security system according to the modification of the embodiment of the present invention. FIG. 5 is an explanatory diagram of an example of the operation of the security system described above. FIG. 6 is an explanatory diagram of another example of the operation of the security system described above.

  The security system according to the embodiment of the present invention will be described below. However, the configuration described below is merely an example of the present invention, and the present invention is not limited to the following configuration, and deviates from the technical idea according to the present invention even if it is other than the following configuration. Various changes can be made in accordance with the design or the like as long as they are not.

  In the following description, each of the plurality of fire alarm devices 1A, 1B,... Is referred to as “fire alarm device 1” unless the plurality of fire alarm devices 1A, 1B,.

  As shown in FIG. 1, the security system 100 according to the present embodiment includes a plurality (here, three) of fire alarms 1 and sensors 2.

  Each of the plurality of fire alarms 1 includes a fire detection unit 11, a first communication unit 12, and a first control unit 13. The fire detection unit 11 detects the occurrence of a fire. The first communication unit 12 transmits and receives a radio signal using radio waves as a medium. When the fire detection unit 11 detects the occurrence of a fire, the first control unit 13 outputs a fire alarm that notifies the occurrence of the fire.

  The sensor 2 includes a CO detection unit 21, a second communication unit 22, and a second control unit 23. The CO detector 21 detects the generation of carbon monoxide. The second communication unit 22 transmits and receives wireless signals.

  In the sensor 2, the second control unit 23 transmits a notification signal to the plurality of fire alarms 1 via the second communication unit 22 when the CO detection unit 21 detects the generation of carbon monoxide. It is configured.

  In each of the plurality of fire alarms 1, when the first communication unit 12 receives the notification signal, the first control unit 13 outputs a CO-linked alarm that notifies the generation of carbon monoxide at the installation location of the sensor 2. It is configured. The first control unit 13 is configured to transmit a notification signal to the other fire alarm device 1 via the first communication unit 12.

  Hereinafter, the security system 100 of this embodiment will be described in detail. The security system 100 of this embodiment is used for a detached house, for example. Of course, the security system 100 according to the present embodiment is not limited to a detached house, and may be used in various buildings such as an apartment house (apartment), a commercial facility, a hospital, a hotel, and a multi-purpose building.

  As shown in FIG. 1, the security system 100 according to the present embodiment includes a plurality of (here, three) fire alarms 1 (fire alarms 1A, 1B, 1C) and one sensor 2. Yes. Here, since the structure and function of the some fire alarm device 1 are equivalent, below, the structure and function are demonstrated about one fire alarm device 1 of the some fire alarm device 1. FIG.

  The fire alarm 1 has a function of detecting the occurrence of a fire, and is installed, for example, on the ceiling of a room of a detached house (collective house). The fire alarm device 1 includes a fire detection unit 11, a first communication unit 12, a first control unit 13, and a first reproduction unit 14. The fire alarm 1 operates using a battery such as a dry battery as a power source.

  The fire detection unit 11 is configured to detect smoke accompanying the occurrence of a fire and change the detection amount (for example, voltage value) according to the generation amount (concentration) of smoke. As a method for detecting smoke, for example, there is a photoelectric method in which generation of smoke is detected by a light receiving element detecting scattered light generated by reflection of light emitted from a light emitting element by smoke particles. Of course, the fire detection part 11 may be comprised by the thermal type which detects the occurrence of a fire according to the heat accompanying the occurrence of a fire. The fire detection unit 11 compares the detection amount with a threshold set in advance by the fire detection unit 11, and detects that a fire has occurred if the detection amount exceeds the threshold.

  The first communication unit 12 includes an antenna, a transmission circuit, and a reception circuit, and is configured to transmit and receive a radio signal using radio waves as a medium. The transmission circuit modulates the data input from the first control unit 13 into a radio signal, and transmits the radio signal via the antenna. The receiving circuit demodulates the radio signal received via the antenna and outputs the demodulated data to the first control unit 13. The first communication unit 12 transmits and receives a radio signal in accordance with, for example, the “radio station of the low power security system” defined in Article 6, Paragraph 4, Item 3 of the Radio Law Enforcement Regulations.

  The 1st control part 13 makes a microcomputer (microcomputer) the main structure, and implement | achieves a desired function by running the program memorize | stored in memory. The program may be written in the memory in advance, but may be provided by being stored in a recording medium such as a memory card, or may be provided through an electric communication line.

  The first reproduction unit 14 includes a buzzer for generating a buzzer sound designated by the first control unit 13 and a speaker for reproducing a voice message designated by the first control unit 13.

  The first control unit 13 has a function of controlling the first regeneration unit 14 and outputting a fire alarm when the fire detection unit 11 detects the occurrence of a fire. The fire alarm is an alarm that the fire alarm device 1 at the fire source informs of the occurrence of a fire. Specifically, the first control unit 13 causes the buzzer sound of the first playback unit 14 to play a buzzer sound, or causes the speaker of the first playback unit 14 to play a voice message such as “fire”.

  Moreover, the 1st control part 13 has a function which controls the 1st reproduction | regeneration part 14 and outputs a CO-linked alarm, when the 1st communication part 12 receives a notification signal. The CO-linked alarm is an alarm for informing the generation of carbon monoxide at the place where the sensor 2 is installed. Specifically, the first control unit 13 causes the buzzer of the first reproduction unit 14 to sound a buzzer sound different from the fire alarm, or the speaker of the first reproduction unit 14 indicates that “carbon monoxide is generated elsewhere”. Play a voice message such as “Occurred. Please leave the building immediately”.

  Further, the first control unit 13 has a function of outputting a CO-linked alarm and transmitting a notification signal to the other fire alarm device 1 via the first communication unit 12. Specifically, the first control unit 13 transmits a notification signal to the other fire alarm device 1 via the first communication unit 12 using a preset route table. In other words, the plurality of fire alarm devices 1 perform multi-hop communication using the route table. Here, in order to increase the possibility that another fire alarm device 1 receives the notification signal, the first control unit 13 may repeatedly transmit the notification signal via the first communication unit 12 for a certain period.

  Further, the route table may be periodically updated by, for example, a plurality of fire alarms 1 executing a routing process defined by a proactive routing protocol. In this configuration, even if the radio wave condition changes due to, for example, a change in the installation location of the fire alarm device 1 or an obstacle such as furniture, a plurality of fire alarm devices 1 can perform multi-hop communication. .

  The sensor 2 has a function of detecting the generation of carbon monoxide (CO) and is installed, for example, in a basement of a house or a ceiling of a garage. In addition, the sensor 2 may be installed in a room where ventilation is not enough, for example, there are few windows, or a room where a heater such as a gas stove is used. In other words, carbon monoxide may be generated by incomplete combustion in a heating appliance such as a gas stove in a closed space, a boiler, or a gas water heater, or incomplete combustion in a car exhaust gas or the like. For this reason, it is preferable to preferentially install the sensor 2 in a room where carbon monoxide may be generated.

  The sensor 2 includes a CO detection unit 21, a second communication unit 22, a second control unit 23, and a second reproduction unit 24. The sensor 2 operates using a battery such as a dry battery as a power source.

  The CO detection unit 21 is configured to detect carbon monoxide and change the detection amount (for example, voltage value) according to the generation amount (concentration) of carbon monoxide. Examples of the carbon monoxide detection method include an electrochemical method, a catalytic combustion method, and a semiconductor method. The electrochemical formula is a method for detecting the amount of carbon monoxide generated by converting chemical reaction energy generated by the oxidation-reduction reaction into electrical energy. The catalytic combustion type is a system that detects the amount of carbon monoxide generated by a change in voltage that accompanies an increase in resistance of the sensing element due to carbon monoxide reacting with the sensing element and burning. The semiconductor type is a method of detecting the amount of carbon monoxide generated based on a change in electrical conductivity due to gas adsorption on the surface of a metal oxide semiconductor. The CO detection unit 21 compares the detection amount with a threshold value set in advance by the CO detection unit 21, and detects that carbon monoxide has been generated if the detection amount exceeds the threshold value.

  The second communication unit 22 includes an antenna, a transmission circuit, and a reception circuit, and is configured to transmit and receive a radio signal using radio waves as a medium. The transmission circuit modulates the data input from the second control unit 23 into a radio signal, and transmits the radio signal via the antenna. The receiving circuit demodulates the radio signal received via the antenna and outputs the demodulated data to the second control unit 23. The 2nd communication part 22 transmits and receives a radio signal based on the "radio station of a low power security system" prescribed | regulated, for example to radio wave law enforcement regulations Article 6 Clause 4 No. 3.

  The 2nd control part 23 makes a microcomputer a main structure, and implement | achieves a desired function by running the program memorize | stored in memory. The program may be written in the memory in advance, but may be provided by being stored in a recording medium such as a memory card, or may be provided through an electric communication line.

  The second reproduction unit 24 includes a buzzer that sounds a buzzer sound designated by the second control unit 23 and a speaker that reproduces a voice message designated by the second control unit 23.

  The second control unit 23 has a function of controlling the second regeneration unit 24 and outputting a CO alarm when the CO detection unit 21 detects the generation of carbon monoxide. The CO alarm is an alarm that the sensor 2 at the carbon monoxide generation source notifies of the generation of carbon monoxide. Specifically, the second control unit 23 causes the buzzer of the second reproduction unit 24 to sound a buzzer sound different from the fire alarm and the CO interlocking alarm, Play a voice message such as “Occurred. Please leave the building immediately”.

  The second control unit 23 has a function of outputting a CO alarm and transmitting a notification signal to the plurality of fire alarm devices 1 via the first communication unit 12. Specifically, the second control unit 23 broadcasts a notification signal via the first communication unit 12. Here, in order to increase the possibility that at least one of the plurality of fire alarm devices 1 receives the notification signal, the second control unit 23 repeats the notification signal via the second communication unit 22 for a certain period of time. You may broadcast.

  Hereinafter, the operation of the security system 100 of the present embodiment will be described with reference to FIG. First, it is assumed that carbon monoxide is generated at the installation location of the sensor 2. Then, the CO detector 21 of the sensor 2 detects the generation of carbon monoxide (step S101). And the 2nd control part 23 of the sensor 2 controls the 2nd reproduction | regeneration part 24, and outputs a CO alarm (step S102). Moreover, the 2nd control part 23 of the sensor 2 transmits a notification signal via the 2nd communication part 22 toward the some fire alarm 1 (step S103).

  Here, it is assumed that the fire alarm 1A of the plurality of fire alarms 1 has received the notification signal. In the fire alarm 1A, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm (step S104). And the 1st control part 13 transmits a notice signal via the 1st communication part 12 toward other fire alarms 1 (Step S105). Here, the 1st control part 13 transmits a notification signal via the 1st communication part 12 toward the fire alarm devices 1B and 1C which can communicate with the fire alarm device 1A.

  In the fire alarm 1B, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm (step S106). Similarly, in the fire alarm 1C, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm (step S107). Here, there is no fire alarm 1 that can communicate with the fire alarms 1B and 1C other than the fire alarm 1A. Therefore, the first control unit 13 of each of the fire alarm devices 1B and 1C does not execute a process of transmitting a notification signal toward the other fire alarm devices 1.

  As described above, in the security system 100 according to the present embodiment, when any one of the plurality of fire alarms 1 receives the notification signal from the sensor 2, the CO interlocking alarm is output and the other fire alarm 1 Send a notification signal to For this reason, in the security system 100 of this embodiment, when all the fire alarm devices 1 receive the notification signal, all the fire alarm devices 1 work together to notify the generation of carbon monoxide. Therefore, the security system 100 of the present embodiment can notify that carbon monoxide has been generated in a place other than the carbon monoxide generation source.

  Here, carbon monoxide diffuses faster than smoke associated with a fire. In addition, carbon monoxide is more toxic than smoke associated with the occurrence of a fire, and tends to adversely affect the human body. For this reason, when carbon monoxide is generated, it is preferable that not only the person at the generation source but all persons in the building are away from the building. And since the security system 100 of this embodiment can alert | report generation | occurrence | production of carbon monoxide to places other than the generation source of carbon monoxide, the person who exists in places other than the generation source of carbon monoxide is also from a building. Can be promptly removed.

  In the security system 100 according to the present embodiment, in the sensor 2, when the CO detection unit 21 detects the generation of carbon monoxide, the second control unit 23 outputs a CO alarm for notifying the generation of carbon monoxide. Is configured to do. For this reason, in the security system 100 of this embodiment, since the generation | occurrence | production of carbon monoxide is alert | reported also in the generation | occurrence | production source of carbon monoxide, the person in the generation | occurrence | production source can be promptly urged | moved from a building. Note that whether or not to adopt the configuration is arbitrary. The security system 100 of the present embodiment may be configured to include both the sensor 2 that can output a CO alarm and the sensor 2 that does not have a function of outputting a CO alarm, for example.

  Moreover, in the security system 100 of this embodiment, it is preferable that the alarm sound of the CO-linked alarm is the same as the alarm sound of the CO alarm. Here, the alarm sound is at least one of a buzzer sound that the buzzer of the first reproduction unit 14 (second reproduction unit 14) sounds and a voice message that the speaker reproduces. In this configuration, since the plurality of fire alarms 1 notify the generation of carbon monoxide as if the sensor 2 is in the carbon monoxide generation source, it is easy to quickly leave the person in the building. In particular, in this configuration, it is easy to prevent a person who has heard the alarm from going to the carbon monoxide generation source for confirmation, so it is easy to prevent human damage from spreading. Even if the sensor 2 does not output a CO alarm, each of the plurality of fire alarms 1 may output a CO-linked alarm with the same alarm sound as the CO alarm.

  By the way, in the security system 100 of this embodiment, the 1st control part 13 has a fire interlocking | linkage function in each of the some fire alarm device 1. FIG. When the fire detection unit 11 detects the occurrence of a fire, the fire-linked function outputs a fire-linked alarm that notifies the other fire alarm 1 of the occurrence of the fire in conjunction with the fire alarm 1 at the source of the fire. This is a function of transmitting the interlocking signal for making it through the first communication unit 12.

  In each of the plurality of fire alarms 1, the first control unit 13 is configured to give priority to the CO-linked alarm when the first communication unit 12 receives the notification signal during the output of the fire-linked alarm. Has been.

  Hereinafter, the fire interlocking function in the security system 100 of the present embodiment will be described with reference to FIG. First, it is assumed that a fire has occurred at the place where the fire alarm 1A is installed. Then, the fire detection unit 11 of the fire alarm 1A detects the occurrence of a fire (Step S201). And the 1st control part 13 of 1 A of fire alarms controls the 1st reproduction | regeneration part 14, and outputs a fire alarm (step S202). Moreover, the 1st control part 13 of 1 A of fire alarms transmits an interlocking signal via the 1st communication part 12 toward other fire alarms 1B and 1C (step S203).

  In the fire alarm device 1B, when the first communication unit 12 receives the interlock signal, the first controller 13 controls the first regeneration unit 14 to output a fire interlock alarm (step S204). Specifically, the first control unit 13 causes the buzzer of the first reproduction unit 14 to sound a buzzer sound different from the fire alarm and the CO-linked alarm, or causes the speaker of the first reproduction unit 14 to “fire in other places”. Play a voice message such as “There is a problem”. Similarly, in the fire alarm 1C, when the first communication unit 12 receives the interlock signal, the first control unit 13 controls the first regeneration unit 14 to output a fire interlock alarm (step S205). As described above, when any one of the plurality of fire alarms 1 detects the occurrence of a fire, all the fire alarms 1 are linked to notify the occurrence of the fire.

  Here, when all of the fire alarm devices 1 are outputting a fire-linked alarm, when the fire alarm device 1B of the plurality of fire alarm devices 1 receives the notification signal (step S206), the fire alarm device 1B The first control unit 13 performs the following control. That is, the 1st control part 13 of fire alarm 1B controls the 1st reproduction part 14, and outputs a CO interlocking alarm instead of a fire interlocking alarm (Step S207). Then, the first control unit 13 transmits a notification signal to the other fire alarm device 1 via the first communication unit 12 (step S208). Here, the 1st control part 13 transmits a notification signal via the 1st communication part 12 toward the fire alarm devices 1A and 1C which can communicate with the fire alarm device 1B.

  In the fire alarm 1A, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm instead of the fire-linked alarm (step S209). . Similarly, in the fire alarm 1C, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm instead of the fire-linked alarm ( Step S210).

  As described above, the security system 100 according to the present embodiment can give priority to the notification of the generation of carbon monoxide, which is more urgent than the generation of smoke due to fire, in consideration of adverse effects on the human body. Therefore, the security system 100 according to the present embodiment can easily move a person in a building more quickly and prevent the spread of human damage as compared with the case where a fire-linked alarm is output.

  Note that whether each of the plurality of fire alarms 1 has a fire interlocking function is arbitrary. For example, the security system 100 of the present embodiment may include both the fire alarm device 1 having a fire interlock function and the fire alarm device 1 having no fire interlock function. Whether each of the plurality of fire alarm devices 1 outputs the CO-linked alarm with priority during the output of the fire-linked alarm is arbitrary. In each of the plurality of fire alarms 1, when the first communication unit 12 receives a notification signal during the output of the fire alarm, the first control unit 13 may output the fire alarm with priority. The CO interlocking alarm may be output with priority. Further, in each of the plurality of fire alarms 1, when the first communication unit 12 receives the notification signal during the output of the fire alarm, the first control unit 13 alternately outputs the fire alarm and the CO-linked alarm. May be.

  In the security system 100 of the present embodiment, at least one of the plurality of fire alarms 1 may further include a CO detection unit 21. In this configuration, in the fire alarm device 1 including the CO detection unit 21, when the CO detection unit 21 detects the generation of carbon monoxide, the first control unit 13 controls the first regeneration unit 14 to perform the CO-linked alarm. (Or CO alarm) is output. Then, the first control unit 13 transmits a notification signal to the other fire alarm device 1 via the first communication unit 12.

  In the security system 100 of the present embodiment, the sensor 2 may further include a fire detection unit 11. In this configuration, in the sensor 2, when the fire detection unit 11 detects the occurrence of a fire, the second control unit 23 controls the second regeneration unit 24 to output a fire alarm.

  In addition, the security system 100 according to the present embodiment is configured such that the plurality of fire alarms 1 perform multi-hop communication, but may include the sensor 2 and perform multi-hop communication. In this case, when the CO detection unit 21 detects the generation of carbon monoxide, the second control unit 23 of the sensor 2 is directed to at least one of the plurality of fire alarms 1 via the second communication unit 22. To send a notification signal.

  Moreover, in the security system 100 of this embodiment, the some fire alarm 1 may be comprised by one master station and the other slave station. In this configuration, it is preferable that the master station is installed at a position where it can communicate with all the slave stations. In the master station, when the first communication unit 12 receives the notification signal from the sensor 2, the first control unit 13 controls the first reproduction unit 14 and outputs a CO-linked alarm. Then, the first control unit 13 transmits a notification signal to all the slave stations via the first communication unit 12. In each of all the slave stations, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first reproduction unit 14 and outputs a CO-linked alarm. That is, when the sensor 2 detects the generation of carbon monoxide, all of the plurality of fire alarms 1 output a CO-linked alarm in conjunction with this.

  In the parent station, the first communication unit 12 may receive a notification signal from the sensor 2 or may receive a notification signal transmitted from the child station. When the slave station transmits a notification signal from the sensor 2 to the master station, the first control unit 13 of the slave station may output a CO-linked alarm prior to the master station.

  Further, the first control unit 13 of the master station may include a command instructing to return an ACK (Acknowledgement) in the notification signal when the notification signal is transmitted to all the slave stations. In this case, in each of all the slave stations, when the first communication unit 12 receives the notification signal, the first control unit 13 transmits an ACK to the master station via the first communication unit 12. Then, when the first communication unit 12 receives ACKs from all the slave stations, the first control unit 13 of the master station outputs a synchronization signal that also serves as a notification signal at a constant cycle to all the slave stations. 1 is transmitted via the communication unit 12. That is, the first control unit 13 of the master station may output a CO-linked alarm to all the slave stations by a time division multiple access (TDMA) method using a synchronization signal.

  Moreover, although the security system 100 of this embodiment is configured with three fire alarms 1, it may be configured with two fire alarms 1, or four or more fire alarms. The alarm device 1 may be provided. In addition, the security system 100 according to the present embodiment includes one sensor 2, but may include two or more sensors 2.

  Moreover, in the security system 100 of this embodiment, the 2nd communication part 22 and the 1st communication part 12 may be comprised with the same hardware, and may be comprised using the same software. .

<Modification>
Hereinafter, an example in which a security system 100A according to a modification of the present embodiment is used in a detached house A1 (hereinafter simply referred to as “house A1”) will be described. However, the security system 100A of this modification is basically the same as the security system 100 of the embodiment. Therefore, below, description is abbreviate | omitted about the structure which is common in the security system 100 of embodiment. In the following description, each of the plurality of sensors 2A and 2B is referred to as “sensor 2” unless the plurality of sensors 2A and 2B are particularly distinguished.

  As shown in FIG. 4, a garage B1 for housing a car C1 is built on the site of a house A1. In addition, the house A1 has two floors, two rooms A11 and A12 provided on the first floor, two rooms A21 and A22 provided on the second floor, and a staircase A3 that connects the first and second floors. And a basement A4.

  The security system 100A of the present modification includes five fire alarms 1 (fire alarms 1A, 1B, 1C, 1D, 1E) and two sensors 2 (sensors 2A, 2B).

  The fire alarm 1A is installed on the ceiling of the room A11 on the first floor of the house A1. The fire alarm 1B is installed on the ceiling of the room A12 on the first floor of the house A1. 1 C of fire alarms are installed in the ceiling of the space with the staircase A3 in the house A1. The fire alarm 1D is installed on the ceiling of the room A22 on the second floor of the house A1. The fire alarm 1E is installed on the ceiling of the room A21 on the second floor of the house A1.

  The sensor 2A is installed on the ceiling of the garage B1. The sensor 2B is installed on the ceiling of the basement A4 of the house A1. The sensors 2A and 2B are installed at positions where the notification signal reaches at least one of the plurality of fire alarm devices 1 when the notification signal is broadcast. In this modification, the sensor 2A is installed at a position where a notification signal reaches the fire alarm 1A. In this modification, sensor 2B is installed in the position where a notification signal reaches fire alarm 1B.

  In this modified example, the plurality of fire alarm devices 1A to 1E perform multi-hop communication through routes as shown in FIGS. That is, if the transmission source of the received wireless signal is the sensor 2A, the fire alarm device 1A relays the wireless signal to the fire alarm device 1B. If the transmission source of the received radio signal is the fire alarm 1A, the fire alarm 1B relays the radio signal to the fire alarm 1C. Moreover, if the transmission source of the received radio signal is the sensor 2B, the fire alarm device 1B relays the radio signal to the fire alarm devices 1A and 1C. Furthermore, if the transmission source of the received radio signal is the fire alarm 1C, the fire alarm 1B relays the radio signal to the fire alarm 1A.

  If the transmission source of the received wireless signal is the fire alarm device 1B, the fire alarm device 1C relays the wireless signal to the fire alarm devices 1D and 1E. The fire alarm device 1C relays the wireless signal to the fire alarm device 1B when the transmission source of the received wireless signal is either the fire alarm device 1D or 1E. If the transmission source of the received radio signal is other than the fire alarm 1C, the fire alarms 1D and 1E relay the radio signal to the fire alarm 1C.

  Hereinafter, the operation of the security system 100A of the present modification will be described. For example, assume that carbon monoxide is generated in the basement A4. In this case, the CO detection unit 21 of the sensor 2B detects the generation of carbon monoxide. Then, as illustrated in FIG. 5, the second control unit 23 of the sensor 2 </ b> B broadcasts a notification signal via the second communication unit 22.

  The notification signal from the sensor 2B is received by the first communication unit 12 of the fire alarm 1B. In the fire alarm 1B, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm, and also sends a notification signal to the fire alarms 1A and 1C via the first communication unit 12. Relay. In each of the fire alarm devices 1A and 1C, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm. In the fire alarm 1C, the first control unit 13 relays a notification signal to the fire alarms 1D and 1E via the first communication unit 12. In each of the fire alarm devices 1D and 1E, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm.

  For example, it is assumed that carbon monoxide is generated in the garage B1. In this case, the CO detection unit 21 of the sensor 2A detects the generation of carbon monoxide. Then, as illustrated in FIG. 6, the second control unit 23 of the sensor 2 </ b> A broadcasts a notification signal via the second communication unit 22.

  The notification signal from the sensor 2A is received by the first communication unit 12 of the fire alarm 1A. In the fire alarm 1A, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm and relays a notification signal to the fire alarm 1B via the first communication unit 12. . In the fire alarm device 1B, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm, and via the first communication unit 12 A notification signal is relayed to the fire alarm 1C. In the fire alarm 1C, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm, and via the first communication unit 12 Relay the notification signal to the fire alarms 1D, 1E. In each of the fire alarm devices 1D and 1E, when the first communication unit 12 receives the notification signal, the first control unit 13 controls the first regeneration unit 14 to output a CO-linked alarm.

  In this way, when any one of the sensors 2A and 2B detects the generation of carbon monoxide, all the fire alarms 1 work together to notify the generation of carbon monoxide. For this reason, the resident of the house A1 can know that carbon monoxide has been generated at any location in the house A1, and can quickly leave the site of the house A1.

  Of course, in the security system 100A of this modification, all the fire alarm devices 1A to 1E may be installed at positions where they can directly communicate with each other. In this case, the fire alarm device 1 that has received the notification signal from one of the sensors 2A and 2B may transmit the notification signal to all other fire alarm devices 1.

  By the way, the security system 100A of this modification is further provided with the transfer apparatus 3 as shown in FIG. The transfer device 3 is configured to notify the outside of the house A1 when receiving the notification signal. In the present modification, the fire alarm 1D installed in the same room as the transfer device 3 is configured to relay the notification signal to the transfer device 3. That is, in this modification, when either one of the sensors 2A and 2B detects the generation of carbon monoxide, it is possible to notify the outside that the carbon monoxide has been generated on the site of the house A1 by the transfer device 3. It is. Note that whether or not the security system 100A of the present modification includes the transfer device 3 is arbitrary.

DESCRIPTION OF SYMBOLS 1, 1A, 1B, ... Fire alarm 11 Fire detection part 12 1st communication part 13 1st control part 2, 2A, 2B sensor 21 CO detection part 22 2nd communication part 23 2nd control part 100, 100A Security system

Claims (4)

Multiple fire alarms,
With a sensor,
Each of the plurality of fire alarms is
A fire detection unit that detects the occurrence of a fire;
A first communication unit that transmits and receives radio signals using radio waves as a medium;
A first control unit that outputs a fire alarm for notifying the occurrence of a fire when the fire detection unit detects the occurrence of a fire;
The sensor is
A CO detector for detecting the generation of carbon monoxide;
A second communication unit for transmitting and receiving the wireless signal;
A second control unit,
In the sensor, when the CO detection unit detects the generation of carbon monoxide, the second control unit transmits a notification signal to the plurality of fire alarms via the second communication unit. Configured,
In each of the plurality of fire alarms, when the first communication unit receives the notification signal, the first control unit outputs a CO-linked alarm notifying the generation of carbon monoxide at the sensor installation location. And it is comprised so that the said notification signal may be transmitted via the said 1st communication part toward another fire alarm device, The security system characterized by the above-mentioned.   In the sensor, the second control unit is configured to output a CO alarm for notifying the generation of carbon monoxide when the CO detection unit detects the generation of carbon monoxide. The security system according to claim 1.   The security system according to claim 2, wherein the alarm sound of the CO-linked alarm is the same as the alarm sound of the CO alarm. In each of the plurality of fire alarms, when the fire detection unit detects the occurrence of a fire, the first control unit fires to another fire alarm in conjunction with the fire alarm at the fire source. Having a fire interlocking function for transmitting an interlocking signal for outputting a fire interlocking alarm for notifying the occurrence of the occurrence of the alarm via the first communication unit,
In each of the plurality of fire alarms, when the first communication unit receives the notification signal during the output of the fire-linked alarm, the first control unit outputs the CO-linked alarm with priority. The security system according to any one of claims 1 to 3, wherein the security system is configured.

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