JP2019096353A - Alarm system - Google Patents

Abstract

To provide a notification configuration of an abnormality alarm enabling an appropriate coping act including an evacuation act in accordance with an occurrence situation of an abnormality such as a fire.SOLUTION: When an alarm unit A3 of a group A detects a fire and issues an alarm, the alarm unit transmits a fire interlocking signal to allow each of the other alarm units A1 to A5 in the group to output an alarm. When a relay unit R1 receives the fire interlocking signal from each of the alarm units A1 to A5, the relay unit R1 outputs an alarm and transmits an alarm preparation interlocking signal by designating a next group B to allow alarm units B1 to B5 to perform notification on the basis of an alarm preparation operation. Furthermore, when a relay unit R2 receives the alarm preparation interlocking signal from each of the alarm units B1 to B5, the relay unit R2 outputs an alarm. The relay unit R1 which has transmitted the alarm preparation interlocking signal transmits the fire interlocking signal to the group B when determining the predetermined number of times of reception of the fire interlocking signal, and switches the alarm units B1 to B5 from the alarm preparation operation to an alarm output. Furthermore, when the relay unit R2 receives the fire interlocking signal, the relay unit R2 transmits the alarm preparation interlocking signal to a next group C.SELECTED DRAWING: Figure 2

Description

  The present invention divides alarming devices for detecting and alarming abnormal conditions such as fire into a plurality of groups, and performs interlocking alarming with alarming devices within the same group, and interlocking between alarming devices of different groups via relays The present invention relates to an alarm system that performs an alarm.

  Conventionally, alarm devices that detect and warn of fires in houses and the like have become widespread. Among them, the fire alarm for housing is called a home alarm. For example, in such a home alarm device, a sensor unit that operates with battery power and detects a fire and an alarm unit that warns of a fire are integrally provided in the home alarm device, and a fire is generated based on a detection signal of the sensor unit. When alarm is detected, fire alarm sound is output from the alarm unit, and fire monitoring and alarm notification can be performed with a single resident alarm device without requiring a receiver etc. as in so-called automatic fire alarm equipment, so installation is simple. It is cheap also in terms of cost, and it is widely disseminated along with the installation requirement in general housing.

  In addition, when a fire alarm sound is output from any home alarm device by performing wireless communication between a plurality of home alarm devices, the other home alarm device interlocks with other home alarm devices to output a fire alarm sound An alarm system using a type of home alarm has also been put to practical use and spread.

  In such a linked alarm system, when a fire is detected by a home alarm, the home alarm of the interlock source that detects the fire is a fire such as "Please check that the woowoo fire alarm has been activated". The alarm sound is output and the alarm display LED lights up, while the alarm on the interlock destination outputs a fire alarm sound such as "Woo Woo another fire alarm has been activated, please check" and for alarm display I am trying to blink the LED.

  However, in such a conventional radio-linked alarm system, when one home alarm device receives a radio signal from another home alarm device, a plurality of radio signals using the same communication frequency are simultaneously transmitted. Signal collisions may occur and the frequency of occurrence of signal collisions increases as the number of dwelling devices installed in the alert area increases, so the number of dwelling devices that can be installed in one alert area is restricted. Ru.

  In order to solve this problem, the applicant of the present application sets the maximum number of alarm devices limited so that the frequency of signal collisions is not high when forming a group consisting of a plurality of alarm devices. An alarm system has been proposed in which repeaters are arranged and interlocked between a plurality of groups, and the communication frequency used for each group is different (Patent Document 3).

  In this group interlocking alarm system, it is possible to increase the total number of alarm interlocking units by interlocking a plurality of groups in the alert area, and different groups have different alarm communication frequencies, so a certain group Even if the signals from the alarm devices in the group and the signals from the alarm devices in the other group arrive at the same time in the alarm devices of the group, no signal collision occurs, and transmission and reception of signals can be reliably performed.

  The problem of this signal collision is the same in a system that does not distinguish between the master and slave units of the alarm when using wireless signals, and in a parent-child system where multiple slave units are arranged with respect to the master unit. In the case of, for example, the master unit calls the slave units sequentially using the individual ID of the slave unit, but when the number of slave units increases, the time for the entire communication is increased due to the increase in the number of retries associated with signal collisions. It takes. Therefore, in order to reduce the frequency of occurrence of signal collisions with the master unit, the slave units are limited to a predetermined maximum number or less to form a group, and the master unit of each group has a relay function and is interlocked. The alarm system uses different communication frequencies.

  For this reason, the alarm system consisting of ordinary radio-linked dwelling units that are larger than ordinary houses can not cover the entire system due to the limitation of the maximum number of alarms, but there is no floor area for which there is no obligation to install a fire alarm system. By installing an alarm system that performs group interlocking in facilities less than 3000 square meters, such as group homes that support housework support for elderly people and people with intellectual disabilities, the entire group home alarm while avoiding the problem of signal collision. The number of interlocking devices required is increased to a sufficient number, and the fire monitoring function equivalent to installing a fire alarm system can be provided at low cost.

Japanese Patent Application Publication No. 2007-094719 JP, 2009-140236, A JP, 2011-034373, A

  By the way, in such a conventional alarm system which interlocks with a group, when a home alarm device detects a fire and warns, a home alarm device in the same group and a home alarm device disposed in all other groups The fire alarm can be output from the above, but depending on the form of the facility such as the group home where the alarm system is installed, it may be inappropriate to interlock the alarm of all groups.

  For example, in a facility where a single-story house with multiple rooms is connected by a corridor, a group is formed in the house, and a home alarm is installed in each room of each house. ) Is interlocked with the relay, but the interlocking destination is located at a considerable distance from the interlocking source group (house: the alert area of the group) to which the resident alarm (interlocked original resident alarm) of the room where the fire occurred belongs The fire alarm is output simultaneously for the group's home fire alarm, and despite the relatively low risk level due to the fire being able to evacuate despite having time to evacuate, this results in prompting an emergency action, and many people are evacuated. The roads can be flooded and cause unnecessary confusion, and in the case of non-fire reports and false alarms, the annoyance will increase.

  In such a case, for example, when a resident alarm is activated due to smoke from cooking or steam from the bathroom, the resident of the residence where the alarm that detects a fire is installed is not A false alarm can be determined, and a situation where removal of the operation cause, alarm stop operation of the home alarm device, or recovery operation can be performed can be considered.

  Similarly, in the case of a facility divided into multiple floors, usually a group will be formed and linked to each floor, but if a fire occurs on a certain floor, all residences of all the groups divided into each floor The fire alarm is simultaneously output from the alarm device, which may also cause unnecessary confusion and inconvenience.

  In order to solve such a problem, for example, in the case of the above-mentioned single-story building, the group adjacent to the group that detected the fire, and in the case of a facility divided into multiple floors, the floor immediately above the fire occurrence floor. If linked warning is performed for a group, it will be an appropriate initial warning according to the degree of risk of fire.

  However, residents of group rooms who do not perform other interlocking alarms only with interlocking alarms of the group that detects fire and the group that is adjacent to it are that a fire has occurred in the facility where they are living If the fire spreads to an adjacent group, the fire alarm will become known for the first time, and the evacuation action may be delayed as a result.

  The present invention extends an interlocking number of alarm devices such as home appliances by group interlockings, and in an alarm system for monitoring abnormalities in a plurality of alert areas, including appropriate evacuation behavior according to the occurrence of abnormality such as fire. The purpose is to propose and realize a notification form of abnormal alarm that enables coping behavior.

(Alarm system)
The present invention provides a plurality of groups of one or more alarm devices arranged in the alert area, and the alarm devices in each group give interlocked alarms and different groups via relays that relay signals between groups. In the alarm system that performs interlocking alarm even between alarm devices of
When the alarm arranged in the group (A) of 1 detects an abnormality, the alarm outputs an abnormality alarm and transmits an abnormality interlocking signal specifying the group (A) of itself to transmit the abnormality. Make other alarms in group (A) output abnormal alarm,
The anomaly interlocking signal transmitted from the alarm device of group 1 (A) was received by the relay unit (R1) which relays the signal to the other group (B) in interlocking relationship with the group (A) In this case, the relay transmits an alarm preparation interlocking signal instructing an alarm preparation operation by designating another group (B) in interlocking relation,
When the alarm preparation interlocking signal transmitted from the relay is received by the alarming device of the other group (B) in the interlocking relationship, the alarming device of the other group performs a predetermined alarm preparation operation and performs its own operation. The alarm preparation interlocking signal specifying the group (B) is transmitted to cause the other alarm devices in the other group (B) to perform a predetermined alarm preparation operation.

(Alarm preparation operation)
As the alarm preparation operation of the alarm device, notification by alarm sound and / or alarm display different from the abnormal alarm is performed.

(Transition from alarm preparation operation to alarm operation)
The relay unit (R1) that has transmitted the alarm preparation interlocking signal specifying another group (B) in interlocking relationship thereafter detects another group (B in interlocking relationship) when it is detected that the predetermined determination condition is satisfied. And transmits the abnormality interlocking signal designated by), and switches the alarm preparation operation of the alarm in the other group (B) to the output of the abnormality alarm.

(Judgment conditions)
The alarm device of 1 group (A) which has detected abnormality repeatedly transmits an abnormality interlocking signal when abnormality detection continues,
The relay unit (R1) that has transmitted the alarm preparation interlocking signal detects the establishment of the determination condition when receiving the anomaly interlocking signal from the alarm unit of one group (A) a predetermined number of times within a predetermined period, and interlocking relation Send a malfunction interlocking signal specifying another group (B) in. Specifically, the predetermined period is, for example, 10 seconds. Specifically, the predetermined number of times is three, for example.

(Next operation of repeater (R2) receiving alarm preparation signal)
The irregular interlocking signal transmitted from the other group (B) in interlocking relationship is received by another relay (R2) that relays the signal between the other group and the third group interlocking with the other group. When the other relay (R2) receives the abnormal interlocking signal, the other relay (R2) transmits an alarm preparation interlocking signal specifying the third group (C) in interlocking relationship, and the third group (C ) To perform a predetermined alarm preparation operation.

(Judgment conditions)
The other relay (R2) that has transmitted the alarm preparation interlocking signal detects the establishment of the determination condition when it receives a malfunction interlocking signal a predetermined number of times within a predetermined period from the alarm of another group (B), The irregular interlocking signal specifying the third group (C) in interlocking relationship is transmitted.

(Frequency conversion between groups)
The two groups of alarms linked together via the repeater communicate using different communication frequencies for each group,
The relay converts the signal of the communication frequency received from one of the groups into the signal of the communication frequency used in the other group and transmits it.

(Basic effect)
According to the alarm system of the present invention, the fire alarm is outputted from all the alarms in the group (A) to which the alarm detecting the fire is detected as an abnormality, for example, the adjacent group (B) in interlocking relationship with this The fire alarm is output from the repeater (R1) disposed between the two groups, and all alarms in the adjacent group (B) notify by alarm preparation operation, and the adjacent group (B) is further adjacent and interlocked Since the fire alarm is output from the relay unit (R2) placed between the 3rd group (C) concerned, the alarm area of the group where the fire was detected is close to the alarm area of the group where the fire is detected, and the highest degree of risk due to the fire The group's alarms alert the resident to the possibility of a fire by alerting the resident to a prompt evacuation action and prompting the resident to take a prompt action. The A resident or a manager who knows a notification prompting a warning preparation operation by prompting a preparation for a difficult situation and outputting a fire alarm from relays (R1, R2) installed in common areas such as corridors When we heard situation outside of, we enabled to hear fire alarm, and to confirm the situation and, by alarm interlocking between groups according to the degree of danger depending on the outbreak situation of fire, appropriate such as evacuation Make it possible to cope with fires.

(Effect of transition from alarm preparation operation to alarm operation)
The relay unit (R2) that has transmitted the alarm preparation interlocking signal receives the fire interlocking signal a predetermined number of times within a predetermined period, for example, from the alarm unit of the group detecting the fire, when the establishment of the predetermined determination condition is detected thereafter When it is detected, the establishment of the judgment condition is detected, the fire interlock signal is sent to the next group (C), and the notification by the alarm preparation operation of the alarm is switched to the output of the fire alarm. Expand the fire alarming group according to the increase of danger level, and enable the phased evacuation action etc. corresponding to the fire risk level.

(Effects from the next operation of the repeater that received the alarm preparation signal)
The other relay (R2) which receives the alarm preparation interlocking signal from one relay (R1) in interlocking relation and outputs the fire alarm, interlocks when the fire interlocking signal is received within a predetermined period thereafter Since the alarm preparation interlocking signal is sent to the third group (C) in the group to make the alarm unit perform the alarm preparation operation, the group that performs the fire preparation operation according to the increase in the degree of danger due to the continuation of the fire detection In the case of a group that is separated from the group that has detected a fire, it is possible to inform the possibility of a fire and to prompt preparatory actions such as evacuation.

Explanatory drawing which showed embodiment of the alarm system arrange | positioned to the facility of a flat house Explanatory diagram showing the operation when a fire is detected by the house A 3 of group A An explanatory view showing an operation of determining the reception of a predetermined number of fire interlocking signals by the relay unit R1 disposed between the groups A and B and expanding the interlocking group Block diagram showing an embodiment of a schematic configuration of a home alarm Block diagram showing an embodiment of a schematic configuration of a repeater Explanatory drawing which showed embodiment of the alarm system arrange | positioned at three-story facility Explanatory diagram showing the operation when a fire is detected by the resident alarm device A3 of the first floor group A Explanatory drawing which showed the operation | movement at the time of detecting fire with the resident alarm device B3 of the 2nd floor group B Explanatory diagram showing the operation when a fire is detected by the dwelling unit C3 of the third floor group C

[Overview of alarm system]
FIG. 1 is an explanatory view exemplifying an embodiment of an alarm system disposed in a single-storey facility, taking as an example the case of using a home alarm that is an alarm for detecting and alarming a fire as an abnormality; A plane is shown in (A) and an elevation is shown in FIG.

(Configuration of interlocking group)
As shown in FIG. 1, in the facility for installing the alarm system, single-story houses 1a, 1b and 1c are arranged in a U shape, for example, and houses 1a to 1c are divided into five rooms along the corridor 2 .

  The alarm system is installed with houses 1a to 1c as alert areas, among which group A with house 1a as alert area, group B with house 1b as alert area and group C with house 1c as alert area. In each room, install the home alarm devices A1 to A5 forming the group A, and similarly, install the home alarm devices B1 to B5 forming the group B in each room of the group B. The houses have installed home alarm devices C1 to C5 forming a group C, respectively.

  The home alarm devices A1 to A5, B1 to B5, and C1 to C5 function as an alarm device, and when a fire is detected, operate as an alarm device of the interlocking source, and output a fire alarm indicating the interlocking source and the group of oneself. A fire interlocking signal including a group code designated is transmitted according to a predetermined communication protocol, and a fire alarm indicating interlocking destinations is interlockedly output from all the other alarm devices in the group which has received this. Also, when receiving the fire interlocking signal transmitted by the other home alarm in the same group, the home alarm A1 to A5, B1 to B5, and C1 to C5 operate as an interlock destination alarm, and as necessary Relay transmission of the fire interlocking signal (or its content).

  Note that "relaying" or "relaying" in this description refers to transmitting a signal indicating at least a part of the content of the received interlocking signal based on the reception of a certain signal.

  The alarm at the linkage source that has detected a fire outputs a fire alarm sound such as "Woo-Woo fire alarm has been activated, please check" and turns on the LED for alarm display, while the alarm at the linkage destination is For example, a fire alarm sound such as “Woo-Woo another fire alarm has been activated and confirm” is output and the alarm display LED blinks.

  Here, in the case of Japan, the communication protocol of the home alarm devices A1 to A5, B1 to B5, and C1 to C5 is, for example, STD-30 (small power security known as a standard standard of a specific low power radio station of 400 MHz band It conforms to the radio equipment standard of the system radio station) or STD-T 67 (standard for radio equipment for telecontrol and data transmission for specified low power radio station telemeter).

  Also, the signals transmitted and received by the home alarm devices A1 to A5, B1 to B5, and C1 to C5 are a transmission source code that is an identifier that indicates a transmission source, a group code that is an identifier that indicates a group, a control command or fire, recovery, and alarm stop And so forth (event code) indicating the detection result, etc., and as a source code, for example, a serial number of a home alarm device is used. In the following description, group codes of groups A, B, and C are denoted as Ga, Gb, and Gc.

  Also, in the standard of a specific low power radio station of 400 MHz band, four channel frequencies (communication frequencies) of 400 MHz band can be used. Therefore, different channel frequencies fa, fb, fc are assigned as channel frequencies used in the groups A to C.

  Repeater R1 is installed at a predetermined position such as a wall between group A and group B in corridor 2 and relay R2 is similarly installed at a predetermined position such as a wall between group B and group C .

(Repeater R1 between groups A and B)
When a fire is detected in any of the home alarm devices A1 to A5 of group A, the relay R1 receives a fire interlock signal transmitted using the channel frequency fa, the relay R1 itself generates a fire alarm , And sends an alarm preparation interlocking signal instructing the alarm preparation operation by designating the group B in interlocking relation to the home alarm devices B1 to B5 of the group B using the channel frequency fb. The alarm preparation interlocking signal includes a group code Gb specifying the group B and a command indicating an alarm preparation operation.

  In addition, when a fire is detected in any of the home alarm devices B1 to B5 of the group B, the relay R1 receives the fire interlock signal transmitted using the channel frequency fb, the relay R1 itself fires The alarm preparation interlocking signal for instructing the alarm preparation operation by designating the group A in the interlocking relationship is output while transmitting the alarm, to the home alarm devices A1 to A5 of the group A using the channel frequency fa. The alarm preparation interlocking signal includes a group code Ga specifying the group A and a command indicating an alarm preparation operation.

(Alarm preparation operation of home alarm)
When receiving the alarm preparation interlocking signal transmitted from the relay unit R1 using the channel frequency fb, the home alarm devices B1 to B5 of the group B perform a predetermined alarm preparation operation and, if necessary, the channel frequency fb. Use to relay this. The alarm preparation operation of the home alarm devices B1 to B5 is an alarm sound and / or an alarm display different from the fire alarm, for example, the following alarm is performed.
(1) Repeatedly output a short alarm sound such as "beep".
(2) Turn on, blink or blink the alarm LED without emitting an alarm sound.
(3) Perform the above (1) and (2).

  The notification by the alarm preparation operation of the alarm notifies the resident that a fire has been detected at a place in the facility away from the living room, and if a fire continues, the fire alarm is output sooner It is intended to encourage preparation for that.

  The function of transmitting the alarm preparation interlocking signal of the relay unit R1 can be canceled by a setting operation or the like when it is necessary to output fire alarms simultaneously from the plurality of home appliances. When the transmission function of the alarm preparation interlocking signal is canceled, the relay R1 converts the fire interlocking signal of the communication frequency fa including the group code Ga received from the group A into the fire interlocking signal including the group code Gb, and the channel frequency fb Use to send to group B dwellings.

  Similarly, when a fire interlocking signal of the channel frequency fb is received from the group B, it is converted into a fire interlocking signal including the group code Ga, and transmitted to the home alarm of the group A using the channel frequency fa.

  The repeater R2 disposed between the groups B and C receives the alarm preparation interlocking signal transmitted by the repeater R1 directly or via the home alarm devices B1 to B5 (received at the channel frequency fb), the repeater As with the case where R1 receives the fire interlock signal from group A, the relay R2 itself outputs a fire alarm.

  However, even if the relay unit R2 receives the alarm preparation interlocking signal, the relay unit R2 does not transmit the alarm preparation interlocking signal designating the group C, and holds it.

  As described above, when a fire is detected by any of the groups A to C that make up the alarm system, the relays R1 and R2 installed in the common area such as the corridor 2 interlock output of the fire alarm It is always carried out, and it is possible to surely notify a resident or a supporter who is in a common area of the occurrence of a fire and to prompt coping actions such as evacuation.

(Transition from alarm preparation operation to alarm operation)
The relay device R1 which has received the fire interlocking signal from the group A and transmitted the alarm preparation interlocking signal to the group B subsequently detects the fire interlocking signal designating the group B when the establishment of the predetermined determination condition is detected. The home alarm devices B1 to B5 of the group B that transmit using the channel frequency fb and receive them switch the notification by the alarm preparation operation to the interlocked output of the fire alarm and output.

  Here, when the fire continues, the house-mounted alarm device of group A that has detected the fire repeatedly transmits the fire interlocking signal, and the relay unit R1 transmits the fire interlocking signal from the group A within a predetermined period. Is received a predetermined number of times, that is, when a fire interlocking signal is continuously received from the group A even after transmitting the alarm preparation interlocking signal, the establishment of the determination condition is detected, and the group B is designated and the channel is specified. Transmit a fire interlock signal using frequency fb.

  Therefore, when a fire is detected by the group A home alarm device, the group B residential alarm devices B1 to B5 notify by fire preparation operation, and the fire detection continues with the group A home alarm device thereafter. And, it will be switched to fire alarm notification. For this reason, it is possible to gradually expand the range for performing a fire alarm on a group basis.

  In addition, the fire interlocking signal transmitted from the repeater R1 to the group B using the channel frequency fb is also received by the repeater R2 disposed between the groups B and C, based on which the repeater R2 designates the group C Then, the alarm preparation interlocking signal is transmitted using the channel frequency fc, and the alarming devices C1 to C5 of the group C having received this signal are notified of the alarm preparation operation. Therefore, the range in which the alarm preparation operation is performed can be gradually shifted in the group unit in the expansion direction according to the continuation of the fire detection.

(Repeater R2 between groups B and C)
The operation of the repeater R2 is the same as the description of the repeater R1 described above by replacing the group A in the case of the repeater R1 with the group B and replacing the group B with the group C. The same applies to the alarm preparation operation of the group C related to the repeater R2 and the subsequent switching to the fire alarm.

[Operation of alarm system]
FIG. 2 is an explanatory view showing an operation when a fire is detected by the home alarm device A3 of group A. As shown in FIG.

  As shown in FIG. 2, for example, if a fire F occurs in a room where the home alarm A3 of group A is installed, the home alarm A3 detects a fire through a predetermined fire detection process, and a fire indicating an interlock source An alarm is output, and a fire interlock signal indicated by a solid arrow is transmitted on the channel frequency fa including the group code Ga. The fire interlocking signals transmitted by the home alarm device A3 are received directly by the home alarm devices A1, A2, A4 and A5, or received via relays of other home alarm devices, and the home alarm devices A1, A2, A4 and A5. Outputs a fire alarm indicating the interlocking destination.

  The fire interlock signal transmitted by the home alarm A3 also receives the relay R1 directly or via the home alarm A1 and A2, whereby the relay R1 outputs a fire alarm and designates the group B. The alarm preparation interlocking signal of the channel frequency fb shown by the broken line arrow including the group code Gb is transmitted.

  The alarm preparation interlocking signal transmitted by the relay unit R1 is received by the home alarm devices B1 to B5 of the group B, whereby the home alarm devices B1 to B5 perform notification by the alarm preparation operation. The alarm preparation interlocking signal transmitted by the relay unit R1 also receives the relay unit R2 directly or via the home alarm units B1 to B5, and the relay unit R2 outputs a fire alarm.

  FIG. 3 shows that the relay R1 disposed between the groups A and B determines that the fire interlocking signal has been continuously received a predetermined number of times after transmitting the alarm preparation interlocking signal, and the interlocking group is extended according to this. FIG.

  As shown in FIG. 2, the repeater R1 which has received the fire interlocking signal of the channel frequency fa from the dwelling unit of the group A and transmitted the alarm preparation interlocking signal of the channel frequency fb to the group B is then within a predetermined period. Subsequently, the fire interlocking signal from the group A is received, and when the number of receptions reaches a predetermined number, the establishment of the determination condition is detected. Based on this, as shown in FIG. 3, the relay unit R1 designates the group B and transmits the fire interlocking signal of the channel frequency fb, and the home alarm devices B1 to B5 having received this perform the alarm preparation operation until then The group which performs the fire alarm output is expanded from the group A to the group B by switching from the notification by the above to the output of the fire alarm.

  Furthermore, the relay unit R2 that has received the fire interlocking signal of the channel frequency fb from the relay unit R1 transmits the alarm preparation interlocking signal of the channel frequency fc that designates the group C, and the home alarm C1 to group C which has received this. C5 performs notification by the alarm preparation operation. In this manner, the notification by the alarm preparation operation is expanded from group B to group C.

  A channel frequency dedicated to the relay (for example, fd) may be provided. In this case, the repeater R1 communicates with the group A, B home appliances using channel frequencies fa, fb respectively and communicates with the other repeater R2 using channel frequency fd. The relay R2 may use channel frequencies fb and fc to communicate with the group B and C home appliances, and the channel frequency fd to communicate with other relays R1.

[Configuration of home alarm]
FIG. 4 is a block diagram schematically showing the functional configuration of the main part of the home alarm device A1, and the same applies to the other home alarm devices A2 to A4, B1 to B5, and C1 to C5.

  In FIG. 4, a home alarm device A1 includes a control unit 10, a communication unit 14 to which an antenna 16 is connected, a sensor unit 12, a notification unit 18, and an operation unit 20, and operates with a battery power supply (not shown).

  The control unit 10 is a function realized by executing a program, for example. As hardware, a computer circuit or the like provided with a CPU, a memory, various input / output ports and the like is used.

  The sensor unit 12 is, for example, a temperature detection unit or a smoke detection unit. When a temperature detection unit is provided as the sensor unit 16, for example, a thermistor is used as a temperature detection element, and in this case, a voltage detection signal corresponding to a change in resistance due to temperature is output to the control unit 10. When the smoke detection unit is provided as the sensor unit 16, the light emission unit using the infrared LED is intermittently driven to emit light at a predetermined cycle according to an instruction of the control unit 10, which has a known scattered light detection smoke structure. In synchronization with light emission, the light receiving signal obtained by receiving light scattered by emitted light by smoke particles is amplified by an amplifier circuit at a light receiving unit such as a photodiode and output to the control unit 10 as a smoke density detection signal Do.

  The communication unit 14 transmits and receives interlocking signals (including the above-mentioned alarm preparation interlocking signal and fire interlocking signal) accompanying fire monitoring according to a predetermined wireless communication protocol with the other home alarm devices A2 to A4, and Respond accordingly. In the case of Japan, the communication protocol conforms to the standard of a specific low power radio station of, for example, 400 MHz band, the transmission power is 1 mW or less, and in the case of 1 mW, the line-of-sight communication distance is about 100 meters.

  The notification unit 18 includes a speaker, a display LED, and respective drive circuits, and outputs an alarm sound from the speaker according to an instruction of the control unit 10 as needed, and performs an alarm display by the display LED. The operation unit 20 includes an alarm stop switch that receives an alarm sound and / or an operation for stopping an alarm display.

  The control unit 10 performs the following fire alarm control, fire recovery control, alarm stop control, and the like.

(Fire alarm control)
The control unit 10 reads the detection signal of the temperature or smoke density output from the sensor unit 12 by AD conversion, detects a fire when it is a predetermined threshold or more (fire detection processing), and indicates the interlock source from the notification unit 18 Control to output an alarm.

  In addition, when detecting a fire, the control unit 10 generates a fire interlocking signal including the group code Ga, instructs the communication unit 14, and uses the channel frequency fa to the other home alarm devices A2 to A4. Is controlled, and the other home alarm devices A2 to A4 that have detected effective reception of the fire interlocking signal output a fire alarm indicating the interlocking destination.

  Here, in the home alarm devices B1 to B5, the control unit 10 includes the group code Gb and uses the channel frequency fb, and the home alarm devices C1 to C5 transmits the fire interlocking signal including the group code Gc and using the channel frequency fc Control will be performed.

  In addition, when the control unit 10 detects the effective reception of the fire interlocking signal of the channel frequency fa transmitted by any of the other home alarm devices A2 to A4 or the relay unit R1 through the communication unit 14, Control to output a fire alarm indicating the interlocking destination.

  Further, when the control unit 10 detects the effective reception of the fire interlocking signal or the alarm preparation interlocking signal of the channel frequency fa transmitted by any of the other home alarm devices A2 to A4 or the relay unit R1 through the communication unit 14 And instructs the communication unit 14 to perform relay transmission of the received interlocking signal on the channel frequency fa.

  The above-mentioned “detect effective reception of signal” means that the group code included in the signal received on the receivable channel frequency matches the group code registered in advance in its own memory as the receiving apparatus, It means that it recognized as a signal to which it was addressed, and also recognized that there was no abnormality as the signal content. Hereinafter, detection of effective reception is simply referred to as “reception”.

(Fire recovery control)
Based on the detection signal of the sensor unit 12, the control unit 10 recovers the fire (the fire detection state has been eliminated) if, for example, the state where the temperature or smoke concentration falls below the predetermined threshold continues for a predetermined time or for example continues for a predetermined number of times. ) To stop the fire alarm output indicating the interlocking destination from the notification unit 18 and generate a fire recovery interlocking signal, and instructs the communication unit 14 to transmit the fire recovery interlocking signal to the other home alarm devices A2 to A2 Control is made to transmit A4 and the relay unit R1 at the channel frequency fa, and the other home alarm devices A2 to A4 and the relay unit R1 that received this stop the fire alarm output indicating the interlocking destination.

  Further, when the control unit 10 receives the fire recovery interlocking signal transmitted by any of the other home alarm devices A2 to A4 or the relay unit R1 through the communication unit 14, the fire indicating the interlocking destination from the notification unit 18 Control is performed to stop the alarm output, and the communication unit 14 is instructed to perform relay transmission of the fire recovery interlocking signal.

(Alarm stop control)
The control unit 10 stops the fire alarm output indicating the interlock source from the notification unit 18 when detecting the alarm stop operation received by the alarm stop switch of the operation unit 20 during the output of the fire alarm as the interlock source. An alarm stop interlocking signal is generated and instructed to the communication unit 14 to perform control to transmit the alarm stop interlocking signal to the other home alarm devices A2 to A4 and the relay device R1 at the channel frequency fa, and the other is received The home alarm devices A2 to A4 and the relay device R1 stop the fire alarm output indicating the interlocking destination.

  In addition, when the control unit 10 detects the reception of the alarm stop interlocking signal of the channel frequency fa transmitted by any of the other home alarm devices A2 to A4 or the relay unit R1 through the communication unit 14, the control unit 10 While performing control to stop the fire alarm output indicating the interlocking destination, and instructing the communication unit 14 to perform relay transmission of the alarm stop interlocking signal.

[Repeater configuration]
FIG. 5 is a block diagram showing an outline of the functional configuration of the main part of the repeater R1. The same applies to the other repeater R2 except for the home alarm device (group) to be communicated with and the channel frequency handled.

  In FIG. 5, the relay R1 includes a relay control unit 22, a first communication unit 24 to which the antenna 26 is connected, a second communication unit 28 to which the antenna 30 is connected, a notification unit 32, and an operation unit 34. Operated by

  The relay unit R1 has a function of a setting registration unit (not shown), and a group code of a group to be a communication counterpart is set and registered in advance. Then, when transmitting and receiving various interlocking signals, the relay R1 generates an interlocking signal to be transmitted by referring to the set group code appropriately and generates an interlocking signal, and the validity of the interlocking signal received (a signal that it should handle) To check whether or not

  The relay control unit 22 is a function realized by executing a program, for example. As hardware, a computer circuit or the like provided with a CPU, a memory, various input / output ports and the like is used.

  The first communication unit 24 uses the channel frequency fa and communicates with the home alarm devices A1 to A5 of the group A, for example, a fire interlock signal or fire according to a communication protocol conforming to the standard of the specified low power radio station in the 400 MHz band. It sends and receives recovery interlock signal, alarm stop interlock signal, alarm preparation interlock signal and so on.

  The second communication unit 28 uses the channel frequency fb and, for example, a standard standard of a specific low power radio station in the 400 MHz band with the home alarm devices B1 to B4 of group B as in the case of the first communication unit 24. Transmit and receive fire interlock signal, fire recovery interlock signal, alarm stop interlock signal, alarm preparation interlock signal, etc. according to the communication protocol in accordance with.

  Here, the channel frequencies handled by the first communication unit 24 and the second communication unit 28 may be switched independently as needed. In this manner, the configuration of the relay unit R1 can be made common, and the transmission / reception counterpart of the interlocking signal can be changed in accordance with the entire system. That is, for example, the configurations of the relays R1 and R2 of the present embodiment can be made common, and each operation can be performed (different groups are set as communication partners).

  In addition, when providing a channel frequency fd dedicated to a repeater and communicating with another repeater, a third communication unit (not shown) is provided, and the channel frequency fd is used to communicate with another repeater R2. As in the case of the first communication unit 24, for example, the fire interlock signal, the fire recovery interlock signal, the alarm stop interlock signal, the alarm preparation interlock signal, etc. are transmitted and received according to the communication protocol conforming to the standard of the specific low power radio station of 400 MHz band. The relay unit R2 to be the communication partner is identified by the transmission source code of the received interlocking signal.

  The notification unit 32 includes a speaker, a display LED, and respective drive circuits, and outputs an alarm sound from the speaker according to an instruction of the relay control unit 22 as needed, and performs an alarm display by the LED. The operation unit 34 includes an alarm stop switch that receives an alarm sound and / or an operation for stopping an alarm display.

  The relay control unit 22 performs the following fire alarm control, alarm preparation control, alarm preparation cancellation control, fire interlock switching control, fire recovery control, alarm stop control, and the like.

(Fire alarm control)
When the relay control unit 22 receives the fire interlocking signal of the channel frequency fa transmitted by any of the home alarm devices A1 to A5 of the group A via the first communication unit 24, the relay control unit 22 indicates the interlocking destination from the notification unit 32. Perform control to output a fire alarm.

  In addition, when the relay control unit 22 receives the fire interlocking signal of the channel frequency fb transmitted by any of the home alarm devices B1 to B5 of the group B via the second communication unit 28, the interlocking destination from the notification unit 32 Control to output a fire alarm indicating.

(Alarm preparation control)
When the relay control unit 22 receives the fire interlocking signal of the channel frequency fa transmitted by any of the home alarm devices A1 to A5 of the group A via the first communication unit 24, the alarm preparation interlocking including the group code Gb Control is performed to generate a signal and instruct the second communication unit 28 to transmit the alarm preparation interlocking signal to the resident alarm devices B1 to B5 of group B using the channel frequency fb, and the alarm preparation interlocking signal The received alarm devices B1 to B5 are made to perform a predetermined alarm preparation operation.

  Further, when the relay control unit 22 receives the fire interlocking signal of the channel frequency fb transmitted by any of the home alarm devices B1 to B5 of the group B via the second communication unit 28, an alarm including the group code Ga A preparation interlocking signal is generated, and the first communication unit 24 is instructed to perform control to transmit the alarm preparation interlocking signal to the home alarm devices A1 to A5 of group A using the channel frequency fa, and the alarm preparation interlocking is performed. The home alarm devices A1 to A5 having received the signals perform predetermined alarm preparation operations.

(Alarm preparation cancellation control)
The relay control unit 22 transmits an alarm preparation interlocking signal when it detects a special operation of the alarm stop switch of the operation unit 34, for example, an alarm preparation canceling operation received by a long press operation, when performing the initial setting and the like. Control to release the

  When the relay control unit 22 receives the fire interlocking signal via the first communication unit 24 or the second communication unit 28 in the state where the alarm preparation control is released in this way, the fire interlocking signal specifying the interlocking destination group Control is performed, whereby alarm interlocking is performed in which a fire alarm is simultaneously output from a home alarm device disposed in a group that is interlocked with a group that has detected a fire.

(Fire interlock switching control)
The relay control unit 22 controls the transmission of the alarm preparation interlocking signal to the home alarm devices B1 to B5 of group B, and the number of receptions of the fire interlocking signal from the group A via the first communication unit 24 in a predetermined period. Is counted to determine whether or not the predetermined number of times is reached, and detection of reaching the predetermined number of times generates a fire interlocking signal including the group code Gb, and instructs the second communication unit 28 to execute the fire interlocking signal Are controlled to be transmitted to the resident alarms B1 to B5 of the group B using the channel frequency fb, and the outputs of the fire alarm are notified from the alert preparation operation of the home alarms B1 to B5 that have received the fire interlock signal Switch to operation.

  Also, the relay control unit 22 controls the first communication unit 24 to transmit the alarm preparation interlocking signal to the home alarm devices A1 to A5 of group A via the second communication unit 28 in a predetermined period. The number of receptions of fire interlocking signals from group B is counted to determine whether or not the predetermined number of times is reached, and when arrival to a predetermined number of times is detected, a fire interlocking signal including group code Ga is generated, and the first communication The controller 24 instructs the unit 24 to transmit the fire interlock signal to the dwell alarm devices A1 to A5 of the group A using the channel frequency fa, and the dwell alarm devices A1 to A5 having received the fire interlock signal The notification from the alarm preparation operation is switched to the fire alarm output operation.

(Fire recovery control)
When the relay control unit 22 receives, through the first communication unit 24, the fire recovery interlocking signal transmitted by any of the home alarm devices A1 to A5 that detect a fire of group A, the relay control unit 22 interlocks from the notification unit 32. Control is performed to stop the fire alarm output indicating the point, and a fire recovery interlocking signal including the group code Gb is generated, and the second communication unit 28 is instructed to use the channel frequency fb for the fire recovery interlocking signal. Control is made to transmit to the resident alarm devices B1 to B5 and the relay device R2 of group B, and the alarm output by the alarm preparation operation of the resident alarm devices B1 to B5 having received the fire interlock signal is stopped to stop the output of the fire alarm, and relay Stop the fire alarm output to the unit R2.

  In addition, when the relay control unit 22 receives the fire recovery interlocking signal transmitted by any of the home alarm devices B1 to B5 that detect the fire of the group B via the second communication unit 28, the relay control unit 22 receives the fire recovery interlocking signal from the notification unit 32. Control is performed to stop the fire alarm output indicating the interlock destination, and a fire recovery interlock signal including the group code Ga is generated, and the first communication unit 24 is instructed to use the channel frequency fa for the fire recovery interlock signal. Control is performed to transmit the alarm signals to group A dwelling devices A1 to A5, and the notification by the alarm preparation operation of dwelling devices A1 to A5 having received the fire interlock signal is stopped or the output of the fire alarm is stopped.

(Alarm stop control)
The relay control unit 22 stops the fire alarm output from the notification unit 32 and detects the group codes Ga and Gb when detecting the alarm stop operation received via the alarm stop switch of the operation unit 34 while outputting the fire alarm. An alarm stop interlocking signal including each is generated and instructed to each of the first communication unit 24 and the second communication unit 24, and the alarm stop interlocking signal is transmitted to the group A residential alarm devices A1 to A5, and the group B residential alarm device B1. .About.B5 and the relay unit R2 are controlled, and the home alarm devices A1 to A5 and B1 to B5 and the relay unit R2 which received the control stop the fire alarm output.

  In addition, when the relay control unit 22 detects the valid reception of the alarm stop interlocking signal transmitted by any of the home alarm devices A1 to A5 of the group A via the first communication unit 24, the fire alarm from the notification unit 32 While performing control to stop the output, an alarm stop interlocking signal including the group code Gb is generated, and the second communication unit 28 is instructed to generate the alarm stop interlocking signal for the group B resident alarm devices B1 to B5 and the relay R2 Control is made to transmit to the home alarm devices B1 to B5 and the relay device R2 that have received them, to stop the fire alarm output.

  In addition, when the relay control unit 22 detects the valid reception of the alarm stop interlocking signal transmitted by any of the home alarm devices B1 to B5 of the group B via the second communication unit 28, the fire alarm from the notification unit 32 Control is performed to stop the output, and an alarm stop interlock signal including the group code Ga is generated, and the first communication unit 24 is instructed to transmit the alarm stop interlock signal to the home alarm devices A1 to A5 of group A. And stop the fire alarm output to the home alarm devices A1 to A5 that received this.

[Alarm system of three-story facility]
(Overview of alarm system)
FIG. 6 is an explanatory view exemplifying an embodiment of a warning system disposed in a three-storey facility, FIG. 6 (A) shows an elevation, and FIG. 6 (B) shows a first floor.

  As shown in FIG. 6, the facility 3 on which the alarm system is installed has three floors of 1F to 3F, and each floor is divided into five rooms along the aisle, and these rooms are respectively connected to the stair room 4 via the aisle ing.

  The alarm system is installed with the facility 3 as the alert area, the first floor is the group A, the second floor is the group B, the third floor is the group C, the dwelling devices A1 to A5 are installed in the rooms of the group A, and the rooms of the group B Are installed in the rooms of group C, and installed in the room of group C. The details of the home alarm devices A1 to C5 are the same as in the embodiment of FIG.

  A repeater R1 is installed on a predetermined part of the staircase room 4, for example, a wall part of the part located between the first floor and the second floor of the facility (that is, between the group A and group B of the alarm system) A repeater R2 is installed on the wall of a portion located between the floor and the third floor (ie, between group B and group C).

  The relay unit R1 relays signals transmitted and received between the group A and the group B, and the relay unit R1 relays signals transmitted and received between the group A and the group B. The details of the relays R1 and R2 are the same as those of the embodiment of FIG. 1, and fire alarm control, alarm preparation control, alarm preparation cancel control, fire interlock switching control, fire recovery control, alarm stop control, etc. are performed.

  As an operation of the relays R1 and R2 different from the embodiment of FIG. 1, when the fire interlocking signal transmitted from the fire generation floor group is received, the alarm preparation interlocking signal is not transmitted to the group immediately above, and the fire is generated. The alarm preparation cancellation control is performed to transmit the interlock signal.

  For example, when the relay unit R1 receives a fire interlocking signal from any one of the group A dwelling alarms A1 to A5 on the first floor, the alarm preparation interlocking signal is sent to the group B dwelling units B1 to B5 that are directly above the floor Since there is a high degree of fire risk directly above the floor without transmitting, a fire interlock signal is sent to output a fire alarm.

(Operation of alarm system)
FIG. 7 is an explanatory view showing an operation when a fire is detected by the home alarm device A3 of the group A. As shown in FIG. 7, for example, if a fire F occurs in a room where a living alarm device A3 of the group A on the first floor is installed, the living alarm device A3 detects a fire and outputs a fire alarm indicating an interlocking source At the same time, the fire interlock signal indicated by the solid arrow is transmitted at the frequency fa including the group code Ga. The fire interlocking signal transmitted by the home alarm A3 is received by the home alarm A1, A2, A4, A5 directly or via relay of another home alarm, and a fire alarm indicating the interlock destination is output.

  The fire interlocking signal transmitted by the home alarm A3 also receives the relay R1, and the relay R1 outputs a fire alarm, and the relay receives the fire interlocking signal from the group A located on the lower floor. Since cancellation setting of alarm preparation control is performed, a fire interlocking signal including a group code Gb specifying the group B is generated, and the fire interlocking signal is transmitted using the channel frequency f2 as indicated by the dashed arrow.

  The fire interlocking signal transmitted by the relay unit R1 is received by the home alarm devices B1 to B5 of the group B directly or via relay, and based on this, the home alarm devices B1 to B5 perform fire alarm output. The fire interlocking signal transmitted by the repeater R1 is also received by the repeater R2. The relay unit R2 performs the alarm setup control cancellation setting for the reception of the fire interlocking signal from the group B located on the lower floor, but for the fire interlocking signal from the group A on the first floor, alarm preparation is not made Control is enabled.

  Therefore, when receiving the fire interlocking signal transmitted by the relay R1, the repeater R2 generates an alarm preparation interlocking signal including the group code Gc specifying the other group C in interlocking relation, and the alarm preparation interlocking signal Are transmitted using the channel frequency fc, and the reception alarm devices C1 to C4 of the group C of the third floor which received the notification perform notification by the alarm preparation operation.

  Judgment condition that the number of receptions of the fire interlocking signal to be repeatedly transmitted from the home alarm device A3 of the first floor group A repeatedly detecting a fire becomes a predetermined number of times within a predetermined period after that, the relay unit R2 that transmitted the alarm preparation interlocking signal When it is detected that a fire interlocking signal including group code Gc is generated, the fire interlocking signal is transmitted using channel frequency fc, and the house alarm C1 to group C of the third floor that received it are generated. C4 switches the notification output by the alarm preparation operation until then to the fire alarm output.

  FIG. 8 is an explanatory view showing an operation when a fire is detected by the home alarm device B3 of the second floor group B. As shown in FIG. In this case, the resident alarm B3 that has detected a fire in the group B outputs a fire alarm, and the alarm interlock signal from the home alarm B3 is received by the alarm B1, B2, B4, B5 and the fire alarm is output. Do. The fire interlock signal from the home alarm device B3 also receives the relays R1 and R2 and outputs a fire alarm.

  The relay unit R2 that has received the fire interlocking signal performs cancellation setting for the alarm preparation control for the third floor group C immediately above the fire occurrence floor, so the fire including the group code Gc specifying the third floor group C The interlock signal is generated and transmitted to the home alarm devices C1 to C5, and a fire alarm output is also performed from the home alarm devices C1 to C5 that have received this.

  On the other hand, as for the resident alarm devices A1 to A5 of the first floor group A, the relay R1 receiving the fire interlocking signal is an alarm including the group code Ga specifying the group A since it is not directly above the fire occurrence floor. The preparation interlocking signal is generated and transmitted to the home alarm devices A1 to A5, and the home alarm devices A1 to A5 perform notification by the alarm preparation operation.

  FIG. 9 is an explanatory view showing an operation when a fire is detected by the home alarm device C3 of the third floor group C. As shown in FIG. In this case, the resident alarm C3 that has detected a fire in group C outputs a fire alarm, and the fire interlock signal from the home alarm C3 is received by the resident alarm C1, C2, C4, C5, and the fire alarm is output. Do. The fire interlock signal from the home alarm device C3 also receives the relays R1 and R2 and outputs a fire alarm.

  The relay unit R2 receiving the fire interlocking signal generates an alarm preparation interlocking signal including the group code Gb designating the second floor group B, transmits it to the residential alarm devices B1 to B5, and receives the residential alarm devices B1 to B5. B5 performs an alarm output by the alarm preparation operation.

  Judgment condition that the number of receptions of the fire interlocking signal which relay unit R2 which transmitted the alarm preparation interlocking signal reaches the predetermined number of times repeatedly transmitted from the resident alarm device C3 of the third floor group C detecting the fire within a predetermined period thereafter When it is detected that a fire link signal including group code Gb is generated, the fire link signal is transmitted using channel frequency fb, and the second floor group B dwelling alarms B1 to B5 receive the signal. The notification output by the alarm preparation operation until then is switched to the fire alarm output.

  The relay unit R1 receives the fire interlocking signal transmitted by the relay unit R2, generates an alarm preparation interlocking signal including the group code Ga specifying the first floor group A, and transmits it to the home alarm devices A1 to A5, The devices A1 to A5 perform notification output by the alarm preparation operation.

[Modification of the present invention]
(Repeater)
In the above embodiment, the group code of the interlocking signal received by the relays R1 and R2 is converted to the group code of the interlocking destination and transmitted, but as another embodiment, the group codes are converted by the relays R1 and R2 The interlock signal is generated and transmitted without adding the group code indicating the interlock destination group to the interlock signal, and the interlock signal is received when the interlock signal of the home alarm device of the interlocked group is received. If the group code included in the signal matches, for example, its own group code, it may be processed as a valid signal.

(Parent-child method)
In the above embodiment, the alarm devices communicate with each other without distinction between the parent device and the child device, but the parent device and a plurality of child devices are provided for each group, and the function of the relay device is provided to the parent device , And communication for group interlocking alert may be performed between the parent devices of each group.

  In addition, communication may be performed via a relay between a group configured by a master and a slave and a channel group without another master and a slave. Also in this case, the function of the relay according to the present invention may be added to at least one of the masters.

(Alarm)
Moreover, although the above-mentioned embodiment takes as an example the alarm which detects a fire as an alarm which detects abnormalities, it takes as an example a fire alarm which detects and warns fire, but a fire alarm other than a home alarm, a gas leak alarm The present invention is similarly applicable to an alarm system in which various types of security alarms are arranged, a CO alarm, and a system including these alarms in combination.

(Others)
In addition, the above embodiment can be applied not only to a house, but also to an alarm for various uses such as a building or an office.

  In the above embodiment, the case where the sensor unit and the alarm output processing unit are integrally provided in the alarm unit is taken as an example, but in another embodiment, the sensor unit and the alarm output processing unit are separately provided. It may be.

  Further, the present invention is not limited to the above-described embodiment, includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiment.

A1 to A5, B1 to B5, C1 to C5: living alarm devices R1 and R2: relay 10: control unit 12: sensor unit 14: communication unit 18, 32: notification unit 20, 34: operation unit 22: relay control unit 24: first communication unit 28: second communication unit

Claims (7)

A plurality of groups of one or more alarm devices arranged in the alert area are provided, and the alarm devices in each group perform interlocked alarms, and alarm devices of different groups via relays relaying signals between each group In the alarm system which performs interlocking alarm also between
When abnormality is detected by the alarm arranged in one group, the alarm outputs an abnormality alarm and transmits an abnormality interlocking signal designating its own group to the other group in the one group. Make the alarm output abnormal alarm,
When the relaying device relays the abnormal interlocking signal transmitted from the alarm unit of the one group with the relaying unit between the group and another group interlocking with the group, the relaying unit is configured to: Send an alarm preparation interlocking signal specifying an alarm preparation operation by designating another group in relation,
When the alarm preparation interlocking signal transmitted from the relay device is received by the alarming device of the other group in the interlocking relationship, the alarming device of the other group performs a predetermined alarm preparation operation and the group of its own. An alarm system characterized by transmitting a designated alarm preparation interlocking signal to cause another alarm device in the other group to perform a predetermined alarm preparation operation.
The alarm system according to claim 1, wherein the alarm device performs an alarm sound and / or an alarm display different from the abnormal alarm as the alarm preparation operation.
In the alarm system according to claim 1,
The relay device that has transmitted the alarm preparation interlocking signal specifying the other group in the interlocking relationship subsequently detects another meeting in the interlocking relationship when detecting that the predetermined determination condition is satisfied. An alarm system characterized by transmitting a signal and switching an alarm preparation operation of an alarm in the other group to an abnormal alarm output.
In the alarm system according to claim 3,
The alarm which has detected the abnormality of the group 1 repeatedly transmits the abnormality interlocking signal when the abnormality detection is continuing,
The relay device that has transmitted the alarm preparation interlocking signal detects the establishment of the determination condition when receiving the abnormality interlocking signal a predetermined number of times within a predetermined period from the alarm device of the one group, and detects the establishment of the interlocking relationship. An alarm system characterized by transmitting a malfunction interlocking signal specifying a certain other group.
In the alarm system according to claim 4,
The irregular relaying signal transmitted from the other group in the interlocking relationship is received by another relay relaying the signal between the third group in the interlocking relationship with the other group, and the other relay When receiving the abnormal interlocking signal, the controller transmits an alarm preparation interlocking signal designating the third group in the interlocking relationship, and performs a predetermined alarm preparatory operation on the alarmers in the third group. An alarm system characterized by causing
In the alarm system according to claim 5,
The other relay device that has transmitted the alarm preparation interlocking signal designates the third group in the interlocking relationship when the abnormality interlocking signal has been received a predetermined number of times within a predetermined period from the alarming device of the other group. An alarm system characterized by transmitting a malfunction interlocking signal.
In the alarm system according to claim 1,
Each alarm device of the two groups interlocked via the relay communicates using different communication frequencies for each group,
The alarm system, wherein the relay converts a signal of a communication frequency received from one of the groups into a signal of a communication frequency used in the other group and transmits the signal.

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