JP2016071738A - Fire alarm facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of a conventional wireless fire alarm facility such that when a predetermined zone is changed due to a change in partitioning and the like, an address of a wireless fire sensor installed at a place the partition of which has been changed is required to be registered in a relay in a zone at a change destination and deleted from a relay in the zone before the change.SOLUTION: A fire alarm facility 1 is provided with: a wireless fire sensor 30; a relay 50 that collects information by performing wireless communication with the fire sensors 30 directly or via a repeater 40, which transfers a wireless signal; and a fire receiver 10 that receives the information from the relay 50 via a signal line 20. The relay 50 is provided with: a relay storage part 51 that stores, as communication route information, the fire sensor 30 at a destination of the wireless communication; and a relay setting part 52 that registers, in the communication route information, the fire sensor 30 that transmits a registration request signal and upon receiving registration change information, deletes the fire sensor 30 included in the registration change information from the communication route information.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wireless fire alarm facility.

  Conventionally, there is a fire alarm facility in which a fire detector is connected to a signal line extending from a fire receiver. In recent years, wireless fire detectors that do not require wiring have been used so that there is no need to change or add signal lines due to frequent changes of tenants and partitioning of rooms. There is a need for a wireless fire alarm system.

  A wireless fire alarm system is connected to a signal line extending from a fire receiver and has a repeater installed in a predetermined unit such as each floor of a building or a disaster prevention zone. A wireless signal from the installed wireless fire detector is received, and a signal based on the wireless signal is relayed to the fire receiver via the signal line. (For example, see Patent Document 1)

  In the repeater, in order to identify the wireless fire sensor to be relayed, the address of the wireless fire sensor in the section where the wireless fire sensor is installed in advance is registered. When the repeater detects a wireless fire sensor that cannot perform wireless communication, the repeater notifies the fire receiver of the abnormality.

JP 2010-244160 A

However, in such a wireless fire alarm system, when a predetermined section is changed due to a partition change or the like, the address of the wireless fire detector installed at the changed place is changed to the destination section. It was troublesome to register with the repeater and delete it from the repeater in the section before the change. In addition, if the user forgets to erase, there is a problem that the repeater in the section before the change notifies the fire receiver of the abnormality.
In addition, it is often difficult to operate and remove the repeater because of the installation location itself such as the back of the ceiling or the wiring of signal lines, and the merit of using fire alarm equipment wirelessly decreases. There was a problem that.

  A fire alarm facility according to the present invention includes a wireless fire detector, a repeater that wirelessly communicates with the fire detector directly or via a repeater that transfers a wireless signal, and a signal line. In a fire alarm facility comprising a fire receiver that receives information from the repeater, the repeater transmits a registration request signal and a repeater storage unit that stores a fire detector as a wireless communication destination as communication path information. And a repeater setting unit that deletes the fire detector included in the registration change information when the registration change information is received. To do.

  According to the present invention, when the repeater that has received the registration change information deletes the fire detector included in the registration change information, when the fire detector is registered in the communication path information of another repeater due to section change or the like In addition, it is not necessary to manually delete the fire detector from the communication path information.

It is a schematic structure figure showing an example of fire alarm equipment concerning an embodiment of the invention. It is a figure which shows an example of the installation state of the fire alarm equipment which concerns on embodiment of this invention. It is a figure which shows the communication path information registered into the memory | storage part of each apparatus of the fire alarm equipment which concerns on embodiment of this invention. It is a figure which shows an example of the installation state of the fire alarm equipment which concerns on embodiment of this invention. It is a figure which shows the communication path information registered into the memory | storage part of each apparatus of the fire alarm equipment which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram illustrating an example of a fire alarm facility according to an embodiment of the present invention.
The fire alarm facility 1 includes a fire receiver 10, a repeater 50 connected to the fire receiver 10 via a signal line 20, and a wireless fire detector 30 (hereinafter referred to as “fire alarm detector 30”) installed in each section to be monitored. When the distance between the repeater 50 and the sensor 30 is long, a repeater 40 that performs a relay operation for transferring a radio signal is provided.
An address for identifying each sensor 30, repeater 40, and repeater 50, which are wireless devices that perform wireless communication, is assigned.

(Fire receiver configuration)
The fire receiver 10 includes a receiver transmission unit 11, a receiver determination unit 12, and an alarm unit 13.
The receiver transmission unit 11 communicates with the repeater 50 via the signal line 20.
The receiver determination unit 12 detects the occurrence of a fire or abnormality based on the communication result with the repeater 50.
The alarm unit 13 includes a display unit such as an LED or an LCD display and an acoustic unit such as a buzzer or a speaker. When the state determination unit 12 detects a fire or an abnormality, the display unit and the acoustic unit cause a fire or Announce the occurrence of abnormality.

(Fire detector configuration)
The sensor 30 includes a sensor storage unit 31, a sensor setting unit 32, a sensor communication unit 33, and a fire detection unit 34.
The sensor storage unit 31 stores its own address and communication path information necessary for wireless communication. Here, the communication path information is information that can identify the wireless device of the communication destination, and in this embodiment, is the address of the wireless device.
The sensor setting unit 32 registers or changes communication path information in the sensor storage unit 31.
The sensor communication unit 33 performs wireless communication with the repeater 40 or the repeater 50 based on communication path information stored in the sensor storage unit 31.
The fire detection unit 34 detects a fire based on a phenomenon generated by a fire such as smoke by a sensor.

(Repeater configuration)
The repeater 40 includes a repeater storage unit 41, a repeater setting unit 42, and a repeater communication unit 43.
The repeater storage unit 41 stores its own address and communication path information necessary for performing wireless communication.
The repeater setting unit 42 registers or changes communication path information in the repeater storage unit 41.
The repeater communication unit 43 performs wireless communication with the fire detector 30 and the repeater 50 based on communication path information stored in the repeater storage unit 41, and transfers and relays a wireless signal.

(Configuration of repeater)
The repeater 50 includes a repeater storage unit 51, a repeater setting unit 52, a repeater communication unit 53, a repeater determination unit 54, and a repeater transmission unit 55.
The repeater storage unit 51 stores its own address and communication path information necessary for performing wireless communication.
The repeater setting unit 52 registers or changes communication path information in the repeater storage unit 51.
The repeater communication unit 53 performs wireless communication with the fire detector 30 or the repeater 40 based on the communication path information stored in the repeater storage unit 51.
The repeater determination unit 54 detects the occurrence of a fire based on the information of the fire detector 30 received by the repeater communication unit 53. Further, the repeater determination unit 54 detects the occurrence of an abnormality when communication with the fire detector 30 included in the communication path information is interrupted.
The repeater transmission unit 55 communicates with the fire receiver 10 via the signal line 20 and notifies the fire receiver 10 of the occurrence of a fire or an abnormality detected by the repeater determination unit 54.

(Installation status of fire alarm equipment)
Next, an example of the installation state of the fire alarm facility 1 according to the embodiment of the present invention will be described with reference to FIG. In FIG. 2, a repeater 50-1, a repeater 40-3, and sensors 30-11, 30-12, and 30-13 are installed in a section A. In the section B, the repeater 50-2 and the sensors 30-14 and 30-15 are installed.
Note that the number after the hyphen in the code of each wireless device indicates the address number assigned to each wireless device. Also, in the description of the configuration of each wireless device, when distinguishing by individual address, similarly, an address number is given after the hyphen. For example, the repeater communication unit 53-2 indicates the repeater communication unit 53 of the repeater 50-2.

(Register communication path information)
Registration of communication path information, which is information for each wireless device of the fire alarm facility 1 to perform communication, will be described.
First, communication path information for communication between the repeater 40-3 and the sensors 30-12 and 30-13 is registered.
When a switch (not shown) included in the repeater setting unit 42-3 of the repeater 40-3 is operated, a registration request signal is transmitted from the repeater communication unit 43-3. Thereafter, the repeater 40-3 is in a registration acceptance state for a predetermined time. At this time, when a switch (not shown) included in the sensor setting unit 32-12 of the sensor 30-12 is operated, a registration request signal is transmitted from the sensor communication unit 33-12. Thereafter, the sensor 30-12 is in a registration acceptance state for a predetermined time. Similarly, when a switch (not shown) included in the sensor setting unit 32-13 of the sensor setting unit 32-13 of the sensor 30-13 is operated, a registration request signal is transmitted from the sensor communication unit 33-13, and detection is performed. The container 30-13 is in a registration acceptance state.

  When the repeater communication unit 43-3 receives the registration request signal from the sensors 30-12 and 30-13, the repeater setting unit 42-3 stores the sensors 30-12 and 30- in the repeater storage unit 41-3. The communication path information is registered with 13 as a lower communication destination. Also, the repeater setting unit 42-3 causes the registration request signal to be transmitted again from the repeater communication unit 43-3, and the sensor 30-12 and the sensor 30-13 that have received the registration request signal receive each of the sensor setting units 32- 12 and 32-13 register communication path information in the respective sensor storage units 31-12 and 31-13 with the repeater 40-3 as an upper communication destination.

Next, registration of communication path information for the repeater 50-1, the sensor 30-11, and the repeater 40-3 to perform communication is performed. The registration procedure is the same as the path information registration between the repeater 40-3 and the sensors 30-12 and 30-13 described above.
When a switch (not shown) included in the repeater setting unit 52-1 is operated, the repeater 50-1 enters a registration acceptance state. At this time, if the switch of the repeater setting unit 42-3 is operated, a registration request signal is transmitted, and then the repeater 40-3 is in a registration acceptance state for a predetermined time.
Here, the registration request signal transmitted from the repeater 40-3 includes the sensors 30-12 and 30-13 registered in advance as communication path information in the repeater 40-3.

The repeater setting unit 52-1 receives a registration request signal from the repeater 40-3, registers communication path information in the repeater storage unit 51-1 with the repeater 40-3 as a lower communication destination, and a sensor. 30-12 and 30-13 are registered as communication path information as subordinate communication destinations with which the repeater 40-3 communicates. Further, the repeater setting unit 52-1 transmits a registration request signal from the repeater communication unit 53-1, and the repeater 40-3 that has received it transmits the repeater 50-1 to the repeater storage unit 41-3. Registers communication path information as a communication destination. By the same procedure, the sensor 30-11 is registered as the lower communication destination in the repeater storage unit 51-1 as the communication path information, and the repeater 50-1 is registered as the upper communication destination in the sensor storage unit 31-11. The
Similarly for the section B, the communication path information is registered in each wireless device.

  A list of communication path information registered in each wireless device as described above is shown in FIG. In FIG. 3, a storage unit of each wireless device is displayed in column A. The upper communication destination of the communication path information registered in the storage unit displayed in column A is displayed in column B, the lower communication destination is displayed in column C, and the subordinate communication destination is displayed in column D. For example, in the storage unit 51-1, the sensor 30-11 and the repeater 40-3 are registered as lower communication destinations, and the sensors 30-12 and 30-13 are registered as communication path information as subordinate communication destinations. Indicates that

(Operation of fire alarm equipment)
The fire alarm facility 1 that has completed registration of communication path information operates as follows.
The fire detection unit 34 of each sensor 30 detects fires at predetermined intervals.
The repeater 50-1 transmits a state collection command to collect the state of the sensor 30 installed in the section A. At this time, the repeater communication unit 53-1 refers to the communication path information stored in the repeater storage unit 51-1, and the sensor 30-11 and the repeater 40-3 which are lower communication destinations as transmission destination information. The address is assigned to the status collection command and transmitted as the source information and the source information.

  In the repeater communication unit 43-3 of the repeater 40-3, the destination information included in the received status information command is its own address, and the transmission source information and the communication path information stored in the repeater storage unit 41-3 When the host communication destination matches, it is determined that the command is to be transferred, and the status information command is transferred to the sensors 30-12 and 30-13. At this time, the repeater communication unit 43-3 refers to the communication path information, sets the addresses of the sensors 30-12 and 30-13, which are lower communication destinations as transmission destination information, and the own address as the transmission source information. Give it to the collection command and send it.

In the sensor communication unit 33-12 of the sensor 30-12, the transmission destination information included in the received state collection command is its own address, and the communication stored in the transmission source information and the sensor storage unit 31-12. When the upper communication destination of the route information matches, it is determined that the instruction is addressed to itself, and the state information including the fire detection result is returned to the repeater 40-3. At this time, the sensor communication unit 33-12 refers to the communication path information, adds the address of the repeater 40-3 as the higher-level communication destination as the transmission destination information and the own address as the transmission source information to the state information and transmits To do.
Similarly to the sensor 30-12, when the sensor 30-13 receives the status collection command, the sensor 30-13 transmits the status information to the repeater 40-3.

  When the repeater communication unit 40-3 receives the state information from the sensors 30-12 and 30-13, the transmission destination information included in the state information is a self-address, and is stored in the transmission source information and the repeater storage unit 41-3. When the lower communication destination of the communication path information that has been set matches, it is determined that the status information is to be transferred, and the status information is transferred to the repeater 50-1. At this time, the repeater communication unit 43-3 refers to the communication path information, and assigns the address of the repeater 50-1 that is the higher-level communication destination as the transmission destination information and its own address as the transmission source information to the status information. Send.

The repeater communication unit 53-1 of the repeater 50-1 has the destination information included in the received status information as its own address, and the communication path stored in the source information and the repeater storage unit 51-1. When the lower communication destination of the information matches, it is determined that the status information is addressed to itself.
The repeater 50-1 collects status information for the sensor 30-11 by the same operation.
The repeater determination unit 54-1 determines whether or not the fire occurrence information is included in the collected state information of the sensor 30, and if the fire occurrence information is included, the repeater transmission unit 55-1. Transmits a fire signal to the fire receiver 10 via the signal line 20.
Further, the repeater determination unit 54-1 has completed the collection of the state information of all the sensors 30 included in the lower communication destination and the subordinate communication destination of the communication path information stored in the sensor storage unit 51-1. Judgment is made. When there is a sensor 30 that has not been able to collect state information, the repeater determination unit 54-1 transmits an abnormal signal to the fire receiver 10 via the signal line 20 from the repeater transmission unit 55-1. .

Similarly, for the section B, when the repeater 50-2 collects the status information of the sensors 30-14 and 30-15 and detects a fire or abnormality, the fire receiver 10 receives a fire signal or abnormality. A signal is transmitted.
In the fire receiver 10, when a fire signal or an abnormality signal is received by the receiver transmission unit 11, the receiver determination unit 12 determines a section where a fire or an abnormality has occurred, and the alarm unit 13 performs a fire or abnormality. A warning is given to indicate the section where the error occurred.

(Change registration of communication path information)
Next, a description will be given of a case where the partition is changed due to replacement of tenants and the like, and a part of the section A is changed to the section B. FIG. 4 shows the fire alarm facility 2 in which the fire detector 30-13 installed in the section A of the fire alarm facility 1 is changed to the section B.
When changing from the fire alarm facility 1 to the fire alarm facility 2, the communication path information for the communication between the sensor 30-13 and the repeater 50-2 whose section has been changed is registered. Registration of communication path information is performed in the same manner as described above.

The switch (not shown) included in the repeater setting unit 54-2 of the repeater 50-2 is operated to set the repeater 50-2 to the registration acceptance state, and the sensor setting unit 32-13 of the sensor 30-13 includes. A switch (not shown) is operated to send a registration request signal from the sensor communication unit 33-13.
When the repeater communication unit 53-2 receives the registration request signal from the sensor 30-13, the repeater setting unit 52-2 communicates with the repeater storage unit 51-2 using the sensor 30-13 as a lower communication destination. Register in the route information.
When the repeater 50-2 registers the sensor 30-13 in the communication path information, the registration change information indicates that the sensor 30-13 has been registered in the communication path information from the repeater transmission unit 55-2 to the fire receiver 10. Send as. When the fire receiver 10 receives the registration change information by the receiver transmission unit 11, the fire receiver 10 transfers the registration change information to the repeater 50-1.

  When the repeater 50-1 receives the registration change information, the repeater setting unit 52-1 of the repeater 50-1 converts the device registered in the communication path information of the repeater storage unit 51-1 into the registration change information. Determine if it is not included. If the device registered in the communication path information is included in the registration change information, the repeater setting unit 52-1 deletes the device from the communication path information in the repeater storage unit 51-1. Specifically, the repeater setting unit 52-1 deletes the sensor 30-13 included in the registration change information from the subordinate communication destination of the communication path information.

  In addition, when the device included in the registration change information is a slave communication destination, the repeater setting unit 52-1 transmits the registration change information to the repeater 40-3 and transmits the communication path information in the repeater storage unit 41-3. Remove from Specifically, when the repeater setting unit 42-3 receives the registration change information from the repeater 50-1, the repeater setting unit 42-3 deletes the sensor 30-13 included in the registration change information from the lower communication destination of the communication path information.

The above has been described for the case where the sensor 30-13 is changed to the section, but the same applies to the case where the repeater 40-3 including the sensor 30-12 and the sensor 30-13 is changed to the section B. The communication path information of the repeater 50-2 and the repeater 40-3 may be registered.
In this case, when the repeater 50-1 receives the registration change information from the repeater 50-2 transferred by the fire receiver 10, the repeater 40 of the lower communication destination is determined from the communication path information in the middle device storage unit 51-1. -3 and the subordinate communication destination sensors 30-12 and 30-13 are deleted.

  As described above, when communication path information registration is performed for communication between a wireless device whose partition has been changed and a wireless device to which the partition has been changed, the wireless device whose partition has been changed from the communication route information of the wireless device in the original partition Are automatically deleted. Therefore, it does not take time and effort to delete the wireless device whose partition has been changed from the communication path information of the wireless device in the original partition. In addition, since the wireless device that has been changed in the section does not remain as the communication destination in the communication route information of the wireless device in the original section, the wireless device in which the wireless device in the original section cannot perform wireless communication is detected. Therefore, the fire receiver 10 does not notify the communication abnormality of the wireless device.

As a first modification of the above embodiment, the fire receiver 10 collects and stores the communication path information of the wireless device from all the repeaters 50 and receives the registration change information from the repeater 50. 10 can transmit a communication path information change command to a wireless device that needs to change the communication path information.
Specifically, when changing from the fire alarm facility 1 to the fire alarm facility 2, the fire receiver 10 receives from the repeater 50-2 that the sensor 30-13 has been registered in the communication path information as registration change information. Then, a change command is transmitted so as to delete the sensor 30-13 from the communication path information to the repeater 50-1 in which the sensor 30-13 is registered as a communication destination in the communication path information. The repeater 50-1 that has received the change command deletes the sensor 30-13 from the communication path information and transmits a change command to the repeater 40-3, and detects the sensor 30- from the communication path information of the repeater 40-3. 13 is deleted.
In the first modification of the above embodiment, when many repeaters 50 are connected to the fire receiver 10, the change command is transmitted only to the repeaters 50 that need to change the communication path information. Communication is reduced, and communication path information is changed promptly.

As a second modification of the above embodiment, when registering communication path information for communication between the sensor 30 and the repeater 50, another repeater 50 or repeater is already included in the communication path information of the sensor 30. When 40 is registered as a communication destination, the registered information is notified to the repeater 50 or the repeater 40, and the registration change information can be transmitted from the repeater 50.
Specifically, when changing from the fire alarm facility 1 to the fire alarm facility 2, when registering the sensor 30-13 in the communication path information of the repeater 50-2, the sensor transmitter 33-13 transmits the information. The registration request signal includes the registered information that the repeater 50-1 has been registered in the communication path information of the sensor 30-13, and transmits the information to the repeater 50-2. The repeater 50-2 that has received the registered information transmits registration change information to the repeater 50-1.
In the second modification of the above embodiment, registration change information is transmitted only to the repeater 50 that needs to change the communication path information, so unnecessary communication is reduced and the communication path information is changed quickly.

1 Fire alarm equipment, 2 Fire alarm equipment, 10 Fire receiver, 11 Receiver transmission part, 12 Receiver judgment part, 13 Alarm part, 20 Signal line, 30 Fire detector, 31 Sensor storage part, 32 Sensor setting Unit, 33 sensor communication unit, 34 fire detection unit, 40 repeater, 41 repeater storage unit, 42 repeater setting unit, 43 repeater communication unit, 50 repeater, 51 repeater storage unit, 52 repeater setting unit, 53 repeater Communication unit, 54 repeater determination unit, 55 repeater transmission unit

Claims (3)

A wireless fire detector, a repeater that wirelessly communicates with the fire detector directly or via a repeater that transmits a wireless signal, and collects information, and receives information from the repeater via a signal line In fire alarm equipment with a fire receiver,
The repeater is
A repeater storage unit that stores the fire detector of the wireless communication destination as communication path information;
Registering the fire detector that transmitted the registration request signal in the communication path information, and receiving the registration change information, a repeater setting unit that deletes the fire detector included in the registration change information from the communication path information;
Fire alarm equipment characterized by comprising.   When the fire receiver collects the communication path information from the repeater and receives the registration change information from the repeater, it registers a fire detector included in the registration change information in the communication path information. The fire alarm system according to claim 1, wherein a command for changing the communication path information is transmitted to the repeater. The fire detector, when a communication repeater or repeater has already been registered in the communication path information, transmits the registration request signal including registered information,
The fire notification according to claim 1 or 2, wherein the repeater transmits the registration change information when the registered information is included in the registration request signal from the fire detector. Facility.

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