Fire Monitoring System

Abstract

To output information detected in a group to other devices not constituting the group without reducing the number of fire alarms constituting a fire monitoring group.SOLUTION: When a registration switch is depressed, a relay device 2 transmits a registration request to a parent device 1A. The parent device 1A having received the registration request stores a device ID included in the registration request in its memory and transmits registration information to the relay device 2. The relay device 2 having received the registration information stores a group ID included in the registration information in the memory of the device itself and transmits an erase request to the parent device 1A. The parent device 1A having received the erase request identifies the device ID included in the erase request in its memory and erases the device ID.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a fire monitoring system. [Background technology]

[0002] Conventionally, a residential fire monitoring system that links multiple fire alarms is known (see, for example, Patent Document 1). The multiple fire alarms that make up this fire monitoring system can be linked by registering multiple child units to a parent unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-248230 A Summary of the Invention [Problem to be solved by the invention]

[0004] There is a need to notify other systems of abnormal information detected by this fire monitoring system. To enable such notification, it is necessary to register a relay device to the master unit. However, there is a limit to the number of devices that can be registered to the master unit. Therefore, if a relay device is registered to the master unit, the number of slave devices that can be registered to the master unit will decrease.

[0005] The present invention has been made in consideration of the above circumstances, and aims to output information detected within a fire monitoring group to other devices that are not part of the group, without reducing the number of fire alarms that make up the group. [Means for solving the problem]

[0006] In order to solve the above problems, a fire monitoring system according to the present invention is a fire monitoring system comprising a first fire alarm, one or more second fire alarms, and a relay device, wherein the one or more second fire alarms and the relay device are provided with a registration request unit which transmits a registration request when a registration switch is pressed, the first fire alarm, upon receiving the registration request, stores in its own memory a device ID of the sender of the registration request, and is provided with a first registration unit which transmits a group ID which identifies a fire monitoring group, and the one or more second fire alarms and the relay device, upon receiving the group ID, stores in their own memory the group ID. the first fire alarm is equipped with a wireless signal transmitting unit that transmits a wireless signal including the group ID; the one or more second fire alarms and the relay device are equipped with a processing execution unit that, upon receiving the wireless signal, determines whether the group ID included in the wireless signal is stored in the relay device and, if so, executes a predetermined process; the relay device is equipped with an erasure request unit that transmits an erasure request when the group ID is stored in the memory of the relay device; and the first fire alarm is equipped with an erasure unit that, upon receiving the erasure request, erases the device ID of the relay device from the memory of the relay device.

[0007] In a preferred aspect, the relay device is characterized in that when it receives the wireless signal, it transmits a signal corresponding to the wireless signal to another system different from the fire monitoring system or to another fire monitoring group different from the fire monitoring group. Effect of the Invention

[0008] According to the present invention, it is possible to output information detected within a fire monitoring group to other devices that are not part of the group, without reducing the number of fire alarms that make up the group. [Brief description of the drawings]

[0009] [Figure 1] Diagram showing a fire monitoring system [Diagram 2]Block diagram showing the hardware configuration of the fire alarm 1 [Diagram 3] A block diagram showing a hardware configuration of the relay device 2. [Figure 4] Sequence diagram showing the registration process [Diagram 5] Sequence diagram showing the registration process [Figure 6] Sequence diagram showing fire interlocking processing [Figure 7] Sequence diagram showing the recovery process DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] 1. Embodiment A fire monitoring system according to an embodiment of the present invention will be described with reference to the drawings. 1-1.Configuration Fig. 1 is a diagram showing a fire monitoring system installed in a house H. The fire monitoring system shown in the figure comprises a parent fire alarm device 1A (hereinafter simply referred to as "parent device 1A"), a child fire alarm device 1B (hereinafter simply referred to as "child device 1B"), and a relay device 2. In the following explanation, parent device 1A and child device 1B are collectively referred to as "fire alarm device 1".

[0011] 1-1-1.Fire alarm The fire alarm 1 is an interlocking type fire alarm. Fig. 2 is a block diagram showing the hardware configuration of this fire alarm 1. The fire alarm 1 shown in the figure comprises a fire detection unit 11, an alarm unit 12, a wireless communication unit 13, an operation reception unit 14, a power supply unit 15, and a control unit 16.

[0012] Of the components of this fire alarm 1, the fire detection unit 11 detects a fire by detecting smoke and heat generated by the fire. The alarm unit 12 outputs an alarm sound and turns on an indicator light. The wireless communication unit 13 transmits and receives wireless signals via an antenna. The operation reception unit 14 is a switch operated by the user and includes at least a registration switch and an erase switch. The power supply unit 15 supplies power from a battery to each component of the fire alarm 1. The control unit 16 includes a microcomputer and a memory, and various functions are realized by the microcomputer executing programs stored in the memory.

[0013] When the control unit 16 of the master unit 1A executes the program, the functions of a registration processing unit 161, a fire interlocking processing unit 162, a restoration processing unit 163, and a radio wave abnormality monitoring unit 164 are realized.

[0014] When the registration processing unit 161 receives a registration request from the slave device 1B or the relay device 2, the registration processing unit 161 stores the device ID included in the registration request in the memory (device ID storage area) of the own device. As a result, the sender of the registration request is registered as a device that constitutes a fire monitoring group. However, the number of device IDs that can be stored in the memory is limited by the storage capacity of the memory. In other words, the number of devices that can be registered in the master device 1A is limited by the storage capacity of the memory.

[0015] After storing the device ID in memory, the registration processing unit 161 transmits registration information to the sender of the registration request. The registration information includes at least a group ID for identifying a fire monitoring group.

[0016] Furthermore, when the registration processing unit 161 receives an erasure request from the slave device 1B or the relay device 2, the registration processing unit 161 identifies the device ID included in the erasure request in the memory of the own device and deletes the device ID. As a result, the storage area in the device ID storage area where the device ID was stored becomes available for reallocation to another device.

[0017] The group ID is generated by the master device 1A based on, for example, random numbers, etc. The device ID is a device identification code unique to each of the fire alarm device 1 and the relay device 2. Also, although this may not be described in detail below, after the group ID registration process, when each device, the fire alarm 1 and the relay device 2, transmits a wireless signal, it will assign at least a group ID indicating the group to which it belongs and a device ID indicating the destination.

[0018] When the fire detection unit 11 of the device detects a fire, the fire interlocking processing unit 162 activates the alarm unit 12 to output an alarm sound and turn on the indicator light. The fire interlocking processing unit 162 also transmits a fire interlocking signal. This fire interlocking signal includes the group ID stored in the memory of the device and its own device ID indicating the source of the signal.

[0019] In addition, when the device itself receives a fire interlocking signal from the slave device 1B, the fire interlocking processing unit 162 judges whether or not the group ID included in this fire interlocking signal is stored in the memory of the device itself. In other words, it judges whether or not the sender of this fire interlocking signal belongs to the same fire monitoring group as the device itself. If the result of this judgment is that the group ID is stored in the memory of the device itself, it starts the alarm unit 12, outputs an alarm sound, and turns on the indicator light. It also stores the device ID of the sender in a fire source ID storage area of ​​the memory. In addition, it transfers and transmits the above-mentioned fire interlocking signal. This is to ensure the interlocking of each device belonging to the same fire monitoring group. On the other hand, if the group ID is not stored in the memory of the device itself, it does not start the alarm unit 12, and does not transfer and transmit the fire interlocking signal.

[0020] The recovery processing unit 163 transmits a recovery interlocking signal when it receives a recovery notification from a child device 1B that constitutes a fire monitoring group. When it receives recovery notifications from all child devices 1B that have detected a fire and determines that its own fire detection unit 11 is no longer detecting a fire, it stops the operation of its own alarm unit 12. In other words, when the recovery processing unit 163 receives a recovery notification that includes its own group ID, it deletes the device ID of the source of the recovery notification from the fire source ID storage area of ​​the memory. Then, when the device ID no longer exists in the fire source ID storage area, it determines that all devices that constitute the fire monitoring group are no longer detecting a fire. Then, it transmits a recovery interlocking signal.

[0021] When the radio wave abnormality monitoring unit 164 determines that it has not received a test signal from any of the child devices 1B belonging to the fire monitoring group for a predetermined period of time or longer, it activates the alarm unit 12 to output an alarm sound and turn on an indicator light to notify of the radio wave abnormality.

[0022] Next, when the control unit 16 of the slave unit 1B executes a program, the functions of a registration processing unit 165, a fire interlocking processing unit 166, a restoration processing unit 167, and a radio wave abnormality monitoring unit 168 are realized.

[0023] When the user presses the registration switch of the registration processing unit 165, the registration processing unit 165 transmits a registration request to the master unit 1A. This registration request includes the device ID stored in the memory of the master unit. After transmitting the registration request, the master unit receives registration information from the master unit 1A, and stores information included in the registration information, such as the group ID, in the memory of the master unit.

[0024] Furthermore, when the user presses the delete switch of the registration processing unit 165, the registration processing unit 165 transmits a delete request to the master unit 1A. This delete request includes the group ID and the device ID of the registration processing unit 165.

[0025] When the fire detection unit 11 of the device detects a fire, the fire interlocking processing unit 166 activates the alarm unit 12 to output an alarm sound and turn on the indicator light. The fire interlocking processing unit 162 also transmits a fire interlocking signal. This fire interlocking signal includes the group ID stored in the memory of the device and its own device ID indicating the source of the signal.

[0026] Furthermore, when the device itself receives a fire interlocking signal from the master unit 1A or another slave unit 1B, the fire interlocking processing unit 166 judges whether or not the group ID included in this fire interlocking signal is stored in the memory of the device itself. In other words, it judges whether or not the sender of this fire interlocking signal belongs to the same fire monitoring group as the device itself. If the result of this judgment is that the group ID is stored in the memory of the device itself, the alarm unit 12 is activated to output an alarm sound and turn on the indicator light. On the other hand, if the group ID is not stored in the memory of the device itself, the alarm unit 12 is not activated.

[0027] When a fire is extinguished in the monitoring area of ​​the device itself and the fire detection unit 11 of the device itself no longer detects the fire, the recovery processing unit 167 transmits a recovery notification to the parent unit 1A. The recovery notification is provided with a device ID indicating the sender. After transmitting this recovery notification, when the device itself receives a recovery interlocking signal from the parent unit 1A, the recovery processing unit 167 judges whether or not the group ID included in this recovery interlocking signal is stored in the memory of the device itself. In other words, the recovery processing unit 167 judges whether or not the sender of this recovery interlocking signal belongs to the same fire monitoring group as the device itself. If the group ID is stored in the memory of the device itself as a result of this judgment, the operation of the alarm unit 12 is stopped. On the other hand, if the group ID is not stored in the memory of the device itself, the operation of the alarm unit 12 is not stopped.

[0028] When the radio wave abnormality monitoring unit 168 determines that it has not received a test signal from the parent unit 1A for a specified period of time or longer, it activates the alarm unit 12 to output an alarm sound and turn on the indicator light to notify of a radio wave abnormality.

[0029] 1-1-2.Repeater The relay device 2 is a device for notifying information detected in the fire monitoring system to a system other than the fire monitoring system. Here, the system other than the fire monitoring system is, for example, a security system (not shown) installed in the house H. More specifically, it is a system that detects theft, forgetting to lock the door, gas leaks, etc. that occur in the house H and sounds an alarm or notifies a security company. Fig. 3 is a block diagram showing the hardware configuration of the relay device 2. The relay device 2 shown in the figure includes a wireless communication unit 21, an operation reception unit 22, a power supply unit 23, and a control unit 24.

[0030] Among the components of the relay device 2, the wireless communication unit 21 transmits and receives wireless signals via an antenna. The operation reception unit 22 is a switch operated by a user and includes at least a registration switch. The power supply unit 23 supplies power from a power source such as an AC power source to each unit of the relay device 2. The control unit 24 includes a microcomputer and a memory, and the microcomputer executes a program stored in the memory to realize the functions of a registration processing unit 241, a fire interlocking processing unit 242, a recovery processing unit 243, and a radio wave abnormality monitoring unit 244. Each function will be described below.

[0031] When the user presses the registration switch of the registration processing unit 241, the registration processing unit 241 transmits a registration request to the master unit 1A. This registration request includes the device ID stored in the memory of the master unit. After transmitting the registration request, the master unit receives registration information from the master unit 1A and stores information included in the registration information, such as the group ID, in the memory of the master unit. In addition, the storage of the group ID, etc., triggers the transmission of an erase request to the master unit 1A. This erase request includes the device ID assigned to the master unit.

[0032] When the device itself receives a fire interlocking signal from the parent device 1A or another child device 1B, the fire interlocking processing unit 242 judges whether or not the group ID included in this fire interlocking signal is stored in the memory of the device itself. In other words, it judges whether or not the sender of this fire interlocking signal belongs to the same fire monitoring group as the device itself. If the result of this judgment is that the group ID is stored in the memory of the device itself, a fire occurrence signal is output to the security system, etc. On the other hand, if the group ID is not stored in the memory of the device itself, a fire occurrence signal is not output to the security system, etc.

[0033] When the device itself receives a restoration interlocking signal from the master unit 1A, the restoration processing unit 243 judges whether or not the group ID included in the restoration interlocking signal is stored in the memory of the device itself. In other words, it judges whether or not the sender of the restoration interlocking signal belongs to the same fire monitoring group as the device itself. If the result of this judgment is that the group ID is stored in the memory of the device itself, it outputs a restoration signal to the security system, etc. On the other hand, if the group ID is not stored in the memory of the device itself, it does not output a restoration signal to the security system, etc.

[0034] When the radio wave abnormality monitor 244 determines that it has not received a test signal from the master unit 1A for a predetermined period of time or longer, it outputs a radio wave abnormality signal to the security system or the like.

[0035] 1-2.Operation The operation of the fire monitoring system will be described below, specifically, the registration process, the fire linkage process, the recovery process, and the radio wave anomaly monitoring process.

[0036] 1-2-1. Registration process FIG. 4 is a sequence diagram showing a process for registering the child device 1B in the parent device 1A. To register the slave unit 1B in the master unit 1A, the user presses the registration switch on the master unit 1A (step Sa1). When the registration switch is pressed, the master unit 1A transitions to a registration mode (step Sa2). Next, the user presses the registration switch on the slave unit 1B (step Sa3). When the registration switch is pressed, the registration processing unit 165 of the slave unit 1B transmits a registration request to the master unit 1A (step Sa4). This registration request includes the device ID stored in the memory of the slave unit 1B. When the master unit 1A receives this registration request, the registration processing unit 161 of the master unit 1A stores the device ID included in this registration request in the device ID storage area of ​​its own memory (step Sa5). As a result, the slave unit 1B is registered as a device that constitutes a fire monitoring group.

[0037] After storing the device ID in memory, the registration processing unit 161 transmits registration information to the slave unit 1B (step Sa6). This registration information includes the group ID of the fire monitoring group. When the slave unit 1B receives this registration information, the registration processing unit 165 of the slave unit 1B stores the group ID included in this registration information in its own memory (step Sa7). As a result, the slave unit 1B becomes capable of linking with the master unit 1A. The above is an explanation of the process for registering the child device 1B in the parent device 1A.

[0038] Next, a process for registering the relay device 2 in the master device 1A will be described with reference to Fig. 5, which is a sequence diagram showing this registration process. To register the relay device 2 in the master device 1A, the user presses the registration switch of the master device 1A (step Sb1). When the registration switch is pressed, the master device 1A transitions to a registration mode (step Sb2). Next, the user presses the registration switch of the relay device 2 (step Sb3). When the registration switch is pressed, the registration processing unit 241 of the relay device 2 transmits a registration request to the master device 1A (step Sb4). This registration request includes the device ID stored in the memory of the relay device 2. When the master device 1A receives this registration request, the registration processing unit 161 of the master device 1A stores the device ID included in this registration request in the device ID storage area of ​​its own memory (step Sb5). As a result, the relay device 2 is registered as a device that constitutes a fire monitoring group.

[0039] When the device ID is stored in memory, the registration processing unit 161 transmits registration information to the relay device 2 (step Sb6). This registration information includes the group ID of the fire monitoring group. When the relay device 2 receives this registration information, the registration processing unit 241 of the relay device 2 stores the group ID included in this registration information in its own memory (step Sb7). As a result, the relay device 2 becomes capable of linking with the master unit 1A.

[0040] After storing the group ID, the registration processing unit 241 transmits a deletion request to the master device 1A (step Sb8). This deletion request includes the group ID and device ID assigned to the relay device 2. When the master device 1A receives this deletion request, the registration processing unit 161 of the master device 1A identifies the device ID included in this deletion request in the device ID storage area of ​​its own memory, and deletes the corresponding device ID (step Sb9). As a result, the storage area in the device ID storage area where the device ID was stored can be reallocated to another device. The above is the description of the process for registering the relay device 2 in the master device 1A.

[0041] In this registration process, the relay device 2 stores the group ID in its own memory and then automatically transmits a deletion request. Then, upon receiving this deletion request, the master device 1A deletes the device ID of this relay device 2 from the device ID storage area of ​​its own memory. Therefore, according to this registration process, it is possible to provide the relay device 2 with information detected within the fire monitoring group without reducing the number of slave devices 1B that make up the group. In response to the deletion request, the master device 1A may transmit deletion information to the relay device 2 so that it can be confirmed that the data has been deleted without fail.

[0042] 1-2-2. Fire interlocking treatment FIG. 6 is a sequence diagram showing the fire linkage process. When a fire breaks out in the monitoring area of ​​the slave unit 1B, the fire detection unit 11 of this slave unit 1B detects the fire (step Sc1). When the fire detection unit 11 detects a fire, the fire interlocking processing unit 166 of this slave unit 1B starts the alarm unit 12 to output an alarm sound and turn on the indicator light (step Sc2). The fire interlocking processing unit 166 also transmits a fire interlocking signal (step Sc3). This fire interlocking signal includes the group ID stored in the memory of the own unit and the device ID of the transmission source.

[0043] When the other slave unit 1B receives this fire interlocking signal, the fire interlocking processing unit 166 of the slave unit 1B judges whether or not the group ID included in this fire interlocking signal is stored in its own memory (step Sc4). If the result of this judgment is that the group ID is stored in its own memory, the alarm unit 12 is started to output an alarm sound and turn on the indicator light (step Sc5). On the other hand, if the group ID is not stored in its own memory, the alarm unit 12 is not started.

[0044] When another relay device 2 receives the fire interlocking signal, the fire interlocking processing unit 166 of the relay device 2 judges whether or not the group ID included in the fire interlocking signal is stored in its own memory (step Sc6). If the result of this judgment is that the group ID is stored in its own memory, it outputs a fire occurrence signal to the security system or the like (step Sc7). On the other hand, if the group ID is not stored in its own memory, it does not output a fire occurrence signal to the security system or the like.

[0045] When the master unit 1A receives the fire interlocking signal, the fire interlocking processing unit 162 of the master unit 1A judges whether the group ID included in the fire interlocking signal is stored in its own memory (step Sc8). If the group ID is stored in its own memory as a result of this judgment, the alarm unit 12 is started to output an alarm sound and turn on the indicator light (step Sc9). The device ID of the transmission source is also stored in the fire source ID storage area of ​​the memory. In addition, the fire interlocking processing unit 162 transfers and transmits the fire interlocking signal (step Sc10). This is to ensure the interlocking of each device belonging to the same fire monitoring group. If the slave unit 1B that receives this fire interlocking signal does not receive a fire interlocking signal from the slave unit 1B that is the source of the fire, the relay device 2 that receives this fire interlocking signal executes steps Sc4 and Sc5, and if the relay device 2 that receives this fire interlocking signal does not receive a fire interlocking signal from the slave unit 1B that is the source of the fire, the relay device 2 executes steps Sc6 and Sc7. On the other hand, if the group ID is not stored in the memory of the master unit 1A, the fire interlocking processing unit 162 does not start the alarm unit 12, and does not transfer or transmit the fire interlocking signal.

[0046] Although the above describes an example in which the other slave units 1B operate upon receiving a fire interlocking signal from the slave unit 1B, the other slave units 1B may transmit a fire interlocking signal only upon receiving a transfer signal from the master unit 1A. In this case, the status information of the fire alarm units 1 in the system can be concentrated in the master unit 1A, thereby reducing the processing load of the relay device 2. This concludes the explanation of the fire linkage processing.

[0047] 1-2-3. Recovery process FIG. 7 is a sequence diagram showing the recovery process. When the fire in the monitoring area of ​​the slave unit 1B is extinguished and its own fire detection unit 11 no longer detects the fire (step Sd1), the recovery processing unit 167 of the slave unit 1B transmits a recovery notification to the master unit 1A. This recovery notification includes the device ID of the recovery source indicating the source of the recovery notification (step Sd2). When the recovery processing unit 163 of the master unit 1A receives recovery notifications from all the slave units 1B constituting the fire monitoring group (but only the slave units 1B that had detected the fire) and determines that its own fire detection unit 11 no longer detects the fire (step Sd3), it stops the operation of its own alarm unit 12 (step Sd4). In addition, it transmits a recovery linkage signal (step Sd5).

[0048] More specifically, when the recovery processing unit 163 of the master unit 1A receives a recovery notification including its own group ID, it deletes the device ID of the source of the recovery notification from the fire source ID storage area of ​​the memory. If the device ID no longer exists in the fire source ID storage area and it is determined that all devices constituting the fire monitoring group have stopped detecting a fire (step Sd3), it stops the operation of its own alarm unit 12 (step Sd4). In addition, it transmits a recovery linkage signal (step Sd5).

[0049] When the slave device 1B receives this recovery linkage signal, the recovery processing unit 167 of the slave device 1B judges whether or not the group ID included in this recovery linkage signal is stored in its own memory (step Sd6). If the result of this judgment is that the group ID is stored in its own memory, the operation of the alarm unit 12 is stopped (step Sd7). On the other hand, if the group ID is not stored in its own memory, the operation of the alarm unit 12 is not stopped.

[0050] When the relay device 2 receives the restoration interlocking signal, the restoration processing unit 243 of the relay device 2 judges whether or not the group ID included in the restoration interlocking signal is stored in the memory of the relay device 2 (step Sd8). If the result of this judgment is that the group ID is stored in the memory of the relay device 2, a restoration signal is output to the security system or the like (step Sd9). On the other hand, if the group ID is not stored in the memory of the relay device 2, a restoration signal is not output to the security system or the like. This concludes the explanation of the recovery process.

[0051] 1-2-4. Radio wave abnormality monitoring process The master unit 1A periodically transmits a test signal. This test signal includes a group ID. When the radio wave abnormality monitoring unit 168 of the slave unit 1B, which stores this group ID in its memory, determines that it has not received a test signal from the master unit 1A for a predetermined period of time or more, it activates the alarm unit 12 to output an alarm sound and turn on an indicator light to notify the master unit 1B of a radio wave abnormality. When the radio wave abnormality monitoring unit 244 of the repeater unit 2, which stores this group ID in its memory, determines that it has not received a test signal from the master unit 1A for a predetermined period of time or more, it outputs a radio wave abnormality signal to a security system or the like.

[0052] In the above example, we have described a case where the relay device 2 does not receive a test signal from the parent device 1A. However, it is also possible to have the parent device 1A transmit a radio wave abnormality state caused by not receiving a test signal from the child device 1B to the relay device 2, thereby outputting a radio wave abnormality signal to a security system or the like.

[0053] The slave unit 1B also periodically transmits a test signal. This test signal includes a group ID. When the radio wave abnormality monitoring unit 164 of the master unit 1A, which stores this group ID in its memory, determines that it has not received a test signal from any of the slave units 1B belonging to the fire monitoring group for a predetermined period of time or longer, it activates the alarm unit 12 to output an alarm sound and turn on an indicator light to notify of a radio wave abnormality. This concludes the description of the radio wave anomaly monitoring process.

[0054] 2. Variations The above embodiment may be modified as follows: The modifications described below may be combined with each other.

[0055] 2-1. Variation 1 The notification destination of the relay device 2 may be a system other than a security system, etc. The notification destination system may be any system that can use the signal output from the relay device 2.

[0056] 2-2. Variation 2 The notification destination of the relay device 2 may be a different fire monitoring group from the above fire monitoring group. More specifically, it may be a relay device constituting a different fire monitoring group.

[0057] 2-3. Variation 3 In step Sb5 of the above registration process, the master 1A may store the device ID of the relay 2 (or a newly assigned dummy device ID) in an area other than the device ID storage area of ​​its own memory. More specifically, when the registration processing unit 161 of the master 1A receives a registration request from the relay 2, it may determine the type of the sender from the device ID included in the registration request, and if it determines that the device is a relay, it may store the device ID (or a newly assigned dummy device ID) in an area other than the device ID storage area of ​​its own memory. Here, the dummy device ID is a device ID that is different from the formal device ID assigned to the slave 1B. By storing the device ID (or the dummy device ID) of the relay 2 in an area other than the device ID storage area in this way, the master 1A can provide the linkage signal (various wireless signals) to the relay 2 without reducing the number of slaves 1B that make up the fire monitoring group. In this case, the device ID includes data indicating the device type (category).

[0058] 2-4. Variation 4 In step Sb5 of the above registration process, the master device 1A may omit storing the device ID of the relay device 2 in its own memory. More specifically, when the registration processing unit 161 of the master device 1A receives a registration request from the relay device 2, it may determine the type of sender from the device ID included in the registration request, and if it determines that the sender is a relay device, it may omit storing the device ID in its own memory. By omitting to store the device ID of the relay device 2 in this way, the master device 1A can provide an interlocking signal to the relay device 2 without reducing the number of slave devices 1B that make up the fire monitoring group. In this case, the device ID includes data indicating the device type (category).

[0059] 2-5. Variation 5 If an equipment abnormality other than a fire (e.g., a dead battery) occurs in either the parent unit 1A or the child unit 1B that constitutes the fire monitoring group, the parent unit 1A may transfer a signal notifying the device abnormality to the relay device 2, and output a signal indicating that an equipment abnormality has occurred to an external system.

[0060] 2-6. Variation 6 The registration processing unit 241 of the slave device 1B may store in memory the group ID received from the master device 1A in step Sa7 of the above registration process, and then transmit a deletion request to the master device 1A, similar to the relay device 2. When the master device 1A receives this deletion request, the registration processing unit 161 of the master device 1A identifies and deletes the device ID included in the deletion request from the device ID storage area of ​​its own memory. As a result, the storage area in the device ID storage area where the device ID was stored can be reallocated to another device.

[0061] In this case, the registration processing unit 241 of the slave unit 1B may transmit the above-mentioned deletion request only when it detects that a group ID different from the group ID received from the master unit 1A has already been stored in the memory. The slave unit 1B that stores these two group IDs in its memory can receive signals from the two fire monitoring groups.

[0062] 2-7. Variation 7 The function of the registration processing unit 165 for the slave unit 1B may be added to the master unit 1A, and a fire monitoring system may be configured with only the multiple master units 1A to which this function has been added and the relay device 2. In other words, the master unit 1A and the slave unit 1B may not be distinguished from each other. In this case, in the registration process, the master unit 1A whose registration switch is pressed first among the multiple master units 1A operates as the "master unit 1A" shown in Fig. 4, and the master unit 1A whose registration switch is pressed within a predetermined time thereafter operates as the "slave unit 1B" shown in the same figure. [Explanation of symbols]

[0063] 1, 1A, 1B...fire alarm, 2...relay device, 11...fire detection section, 12...alarm section, 13...wireless communication section, 14...operation reception section, 15...power supply section, 16...control section, 21...wireless communication section, 22...operation reception section, 23...power supply section, 24...control section, 161...registration processing section, 162...fire interlocking processing section, 163...recovery processing section, 164...radio wave abnormality monitoring section, 165...registration processing section, 166...fire interlocking processing section, 167...recovery processing section, 168...radio wave abnormality monitoring section, 241...registration processing section, 242...fire interlocking processing section, 243...recovery processing section, 244...radio wave abnormality monitoring section, H...house

Claims

1. A fire monitoring system comprising a first fire alarm, one or more second fire alarms, and a relay device, The one or more second fire alarm devices and the relay device each include a registration request unit that transmits a registration request when a registration switch is pressed, The first fire alarm includes: a registration unit which, when receiving the registration request from the one or more second fire alarms, stores a device ID of the one or more second fire alarms that are the sender of the registration request in a predetermined storage area of ​​a memory of the first fire alarm, and transmits a group ID that is generated in advance to identify a fire monitoring group to the one or more second fire alarms, and, when receiving the registration request from the relay device, stores a device ID of the relay device that is the sender of the registration request in the predetermined storage area of ​​the memory of the first fire alarm, and transmits the group ID to the relay device; an erasing unit that erases the device ID of the relay device from the predetermined storage area when an erasure request is received from the relay device in response to the transmission of the group ID; A fire monitoring system comprising:

2. A fire monitoring system comprising a first fire alarm, one or more second fire alarms, and a relay device, The one or more second fire alarm devices and the relay device each include a registration request unit that transmits a registration request when a registration switch is pressed, The first fire alarm includes a registration unit that, when receiving the registration request from the one or more second fire alarms, stores a device ID of the one or more second fire alarms that are the senders of the registration request in a predetermined storage area of ​​a memory of the first fire alarm, and transmits a group ID that is generated in advance to identify a fire monitoring group to the one or more second fire alarms, and, when receiving the registration request from the relay device, does not store the device ID of the relay device that is the sender of the registration request in the predetermined storage area of ​​the memory of the first fire alarm, and transmits the group ID to the relay device. A fire monitoring system comprising:

3. A fire monitoring system comprising a first fire alarm, one or more second fire alarms, and a relay device, The one or more second fire alarm devices and the relay device each include a registration request unit that transmits a registration request when a registration switch is pressed, The first fire alarm includes a registration unit that, when receiving the registration request from the one or more second fire alarms, stores a device ID of the one or more second fire alarms that are the senders of the registration request in a predetermined storage area of ​​a memory of the first fire alarm, and transmits a group ID that is generated in advance to identify a fire monitoring group to the one or more second fire alarms, and, when receiving the registration request from the relay device, stores a device ID of the relay device that is the sender of the registration request or a dummy device ID in another storage area other than the predetermined storage area of ​​the memory of the first fire alarm, which other storage area is not used as an area for storing device IDs of devices to be registered in the first fire alarm as devices constituting the fire monitoring system, and transmits the group ID to the relay device. A fire monitoring system comprising:

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