JP2020091906A - Fire alarm system - Google Patents

Abstract

To provide a fire alarm system that separates a receiver configuration into a portion for controlling to monitor a sensor and a controller and a portion for performing display operations, connects both the portions to a server on the Internet through a wireless network, makes a system configuration simple and makes manufacturing, setting and operational management easy.SOLUTION: In a fire alarm system, a terminal monitoring controller 10 and a receiver 12 are placed in a facility 11 to be monitored and a server 26 is placed in an outside facility. The terminal monitoring controller and the receiver are connected to the server 26 through a wireless LAN network 20 and the Internet 24. The terminal monitoring controller 10 transmits fire signals to the server 26 when the fire signals transmitted wirelessly from a fire sensor 14 are received. The server 26 receives the fire signals transmitted from the terminal monitoring controller 10 to perform predetermined processing, transmits fire alarm signals to the receiver 12 on the basis of a processing result to make fire alarms be output.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fire alarm system that uses a wireless network to detect and warn a fire.

Conventionally, the receiver of the fire alarm system that monitors the fire has been installed in the disaster prevention center or management room in the building, and the fire detector or transmitter connected to the detector line pulled out from the receiver to the warning area. By receiving a fire signal from the fire alarm, the fire representative display is activated and the main sound is activated, and the district audio system connected to the control line pulled out from the receiver is activated and further connected to the control line. It also controls fire doors and shutters.

In the case of a receiver of such a fire alarm system, the address, area name, department name, division, type, line number, sensitivity, storage time, and interlocking relationship of smoke detectors connected to the receiver So-called property data such as is prepared and stored in a non-volatile memory such as an EEPROM provided in the receiver and used for fire reception control.

Also, as a wireless fire alarm system, a wireless sensor is placed in the warning area and a relay for reception is connected to the sensor line pulled out from the receiver, and a fire transmitted wirelessly from the wireless sensor. The signal is received by the repeater for reception, and the alarm signal is sent to the sensor line pulled out from the receiver, and the receiver receives the alarm signal sent from the repeater for reception to give a fire alarm. I am trying to output.

In such a wireless fire alarm system, it is not necessary to pull out the detector line to the fire area to connect the fire detector, and the detector line is not required. Is easy and the cost can be reduced.

JP, 2011-189055, A JP, 2009-08711, A Utility model registration No. 3136363

However, in such a conventional fire alarm system, a fire detector and a control device are connected to the line drawn from the receiver, and the receiver has an alarm unit, an operation unit, a display unit, All the operation display functions necessary for fire monitoring such as printers are provided, the configuration of the receiver becomes complicated, and the number of wiring cables pulled out from the receiver increases when the scale of the facility to be monitored increases. However, there is a problem that manufacturing and installation of the receiver becomes complicated.

Also, while operating the fire alarm system, it is necessary to change property data due to facility renovation and tenant replacement, etc., but conventionally it was necessary to visit the installation location of the receiver and update the property data. There is also a problem that it takes time.

In addition, depending on the fire alarm system, you may want to connect a secondary display panel to the receiver to see the fire alarm display from the receiver at another location, but the wiring cable to the secondary display panel at a location remote from the receiver. There is also a problem that it is necessary to pull and connect to make installation work time-consuming.

On the other hand, in the wireless fire alarm system, the detector line between the receiver and the fire sensor can be eliminated, but other than that, the problem similar to the normal fire alarm system remains. ing.

The present invention divides a receiver configuration into a part for monitoring and controlling a sensor and a control device and a part for performing a display operation, and connecting both with a server on the Internet by a wireless network to simplify the system configuration, manufacture, It is an object of the present invention to provide a fire alarm system capable of facilitating installation and operation management.

(Fire alarm system)
The present invention relates to a fire alarm system,
A terminal monitoring control device and a receiver are installed in the facility to be monitored and a server is placed in an external facility, and the terminal monitoring control device and the receiver are connected to the server via an external wireless network,
The terminal monitoring and control device is connected to the wireless sensor installed in the alarm area through the internal wireless network, and when the fire signal transmitted from the wireless sensor is received, the terminal monitoring control device is connected through the external wireless network. Send a fire signal to the server,
The server receives the fire signal transmitted from the terminal monitoring control device via the external wireless network, performs a predetermined process, and transmits a control signal to the receiver via the external wireless network based on the processing result,
The receiver receives a control signal transmitted from the server via an external wireless network and outputs a fire alarm,
It is characterized by

(Wireless LAN network)
The external wireless network is a wireless LAN network that connects the terminal monitoring controller and receiver to the Internet for communication.

(Mobile device tethering)
The external wireless network is a wireless LAN network that connects the terminal monitoring controller and receiver to the Internet for communication connection via the mobile phone network of the mobile phone terminal.

(Server multiplexing)
In addition to the server to which the terminal monitoring control device and the receiver are connected via an external wireless network, a standby server that can be connected via an external wireless network is provided.
The server transfers the information of the terminal monitoring control device and the receiver to the backup server to synchronize the information with each other, and when the server fails, switches the terminal monitoring control device and the receiver to the connection with the backup server. To continue processing.

(Wireless sensor fire signal)
The wireless sensor sends a fire signal with a unique address when a fire is detected,
The terminal monitoring controller receives a fire signal with a unique address set from the wireless sensor and sends it to the server.
The server generates a fire alarm signal in which the fire district information indicating the fire occurrence location is set based on the unique address set in the fire signal, and sends it to the receiver,
The receiver displays the fire district information set in the fire alarm signal received from the server.

(Control of terminal equipment)
A wireless repeater with a unique address set in the warning area is installed, and terminal equipment connected to the wireless repeater is also installed.
The server transmits a terminal control signal in which the address of a predetermined wireless repeater corresponding to the place of fire is set to the terminal monitoring control device,
The terminal monitoring control device operates the terminal device connected to the wireless repeater in which the address of the terminal control signal transmitted from the server matches.

(Receiving machine)
The receiver includes an operation unit, and transmits an operation signal by an operation of the operation unit to the terminal monitoring control device via the server for operation.

(Local sound stop operation and re-ring operation)
When the operation unit stops the district sound, the receiver sends a district sound stop signal to the terminal monitoring and control device via the server to stop the sound of the district sound device and stop the district sound device. When the re-ring operation of the district sound is performed by the operation unit, the district sound ringing signal is transmitted to the terminal monitoring control device via the server to ring the district sound device.

(Fire assertion operation)
The receiver sends a fire assertion signal to the server when the fire assertion operation is performed by the operation unit,
When the server receives the fire assertion signal from the receiver, the server transmits a predetermined interlocking control signal to the terminal monitoring control device to operate a predetermined terminal device.

(Recovery operation)
The receiver sends a restoration signal to the server when the restoration operation is performed by the operation unit,
When the server receives the recovery signal from the receiver, the server transmits a predetermined recovery signal to the terminal monitoring control device to recover the wireless sensor that detected the fire and the operating terminal device.

(Separate terminal monitoring device and terminal control device)
The terminal monitoring controller is
A terminal monitoring device that transmits a fire signal with the address set from the wireless sensor to the server,
A terminal control device that receives a control signal transmitted from a server and transmits to a wireless repeater whose address matches, and operates a terminal device connected to the wireless repeater,
Is separated into

(Basic effect)
According to the present invention, in a fire alarm system, a terminal monitoring control device and a receiver are installed in a monitored facility and a server is installed in an external facility, and the terminal monitoring control device and the receiver are connected via an external wireless network. Is connected to the server, the terminal monitoring and control device is connected to a wireless sensor installed in the alarm area via an internal wireless network, and when a fire signal transmitted from the wireless sensor is received, The fire signal is transmitted to the server via the wireless network of the server, the server receives the fire signal transmitted from the terminal monitoring and control device via the external wireless network, performs a predetermined process, and based on the processing result, the control signal is transmitted. Is sent to the receiver via an external wireless network, and the receiver receives the control signal sent from the server via the external wireless network and outputs a fire alarm. A terminal monitoring control device and a receiver are installed separately in the target facility, and the fire reception control processing function is provided in an external server.By distributing the fire reception control processing function to the server, monitoring is performed. The equipment to be installed in the target facility can be simplified.

In addition, as equipment equipment to be installed in the facility to be monitored, it is installed separately into a terminal monitoring control device and a receiver, and a wireless sensor is connected to the terminal monitoring control device via an internal wireless network, Wiring connection between the terminal monitoring and control device and the terminal side is not necessary, and connection between the receiver and wiring via the server of the terminal monitoring and control device is also unnecessary by using an external wireless network. Compared with the conventional fire receiver that integrates the device and the receiver, the configuration of the terminal monitoring and control device and the receiver is simpler, and the wiring connection between them is not required, so the installation work of the facility is easy in total. Therefore, the cost can be reduced.

In addition, by consolidating the fire reception control processing function on the server, property data such as sensor address, district name, department name, type, line number, sensitivity, storage time, and interlocking relationship with smoke control equipment, etc. Is stored and managed in the server, and when property data is changed due to facility renovation or tenant replacement, etc., it is not necessary to go to the receiver installation location and update the property data as in the past. You can easily update property data in.

(Effects of wireless LAN network)
The external wireless network is a wireless LAN network that connects the terminal monitoring control device and the receiver to the Internet for communication, or the terminal monitoring control device and the receiver are connected to the Internet via the mobile phone network of the mobile phone terminal. Since it is a wireless LAN network to be connected, it is possible to easily establish a communication connection with the server using the existing wireless LAN network connected to the Internet, and damage to the monitored facility due to a disaster such as an earthquake Even if you receive it, as long as the communication connection with the server is secured, you can maintain the fire monitoring function as a fire alarm system, and you can build a highly reliable system that is resistant to troubles such as disasters. ..

(Effect of server multiplexing)
Further, in addition to the server in which the terminal monitoring control device and the receiver are connected via an external wireless network, the terminal monitoring control device and the receiver are equipped with a spare server that can be connected via the external wireless network. When the information of the supervisory control device and the receiver is transferred to the spare server and the information is synchronized with each other, and when a failure occurs in the server, the terminal supervisory control device and the receiver are switched to the connection with the spare server and the processing is performed. Since it was made to continue, if the server goes down due to a disaster such as an earthquake during system operation, by switching to a spare server installed in a different area, you can continue to maintain the fire monitoring function, It is possible to build a highly reliable system that is resistant to troubles such as disasters.

(Effect of fire signal of wireless sensor)
In addition, the wireless sensor sends a fire signal with a unique address set when a fire is detected, and the terminal monitoring and control device receives a fire signal with a unique address set from the wireless sensor. Based on the unique address set in the fire signal, the server generates a fire alarm signal in which fire district information indicating the fire occurrence location is set and sends it to the receiver, and the receiver is the server. Since the fire area information set in the fire alarm signal received from the device was displayed, the conventional fire alarm system with the terminal monitoring controller and receiver connected to the server via the external wireless network Enables operation equivalent to fire monitoring by.

(Effects of controlling terminal equipment)
In addition, a wireless repeater with a unique address set in the warning area is installed, and a terminal device connected to the wireless repeater is installed, and the server is a predetermined wireless repeater corresponding to the fire occurrence location. Sends the terminal control signal to which the address is set to the terminal monitoring control apparatus, and the terminal monitoring control apparatus operates the terminal equipment connected to the wireless repeater in which the address of the terminal control signal sent from the server matches. Therefore, the fire alarm system in which the terminal monitoring controller and the receiver are connected to the server via the external wireless network enables the same operation as the terminal control of the conventional fire alarm system.

(Effect of receiver)
Further, the receiver is provided with an operation unit, and the operation signal by the operation of the operation unit is transmitted to the terminal monitoring control device via the server so as to be operated, so that the distributed arrangement of the server and the terminal monitoring control device is made aware. The necessary operation can be performed by the operation unit of the receiver without the need.

(Effects of local sound stop operation and re-ring operation)
In addition, the receiver transmits a district sound stop signal to the terminal monitoring control device via the server to stop the ringing of the district sound device when the operation unit stops the district sound, and the district sound device If the operation sound of the district sound is re-operated while the operation unit is stopped, the district sound device is made to sound by transmitting a district sound ring signal to the terminal monitoring and control unit via the server. Regarding the fire alarm system in which the terminal monitoring and control device and the receiver are connected to the server via a wireless network, when the fire alarm is output from the receiver, the disaster prevention staff suspends the district sound prior to the site confirmation. You can also re-activate the district sound when you go to the scene and confirm a fire.

(Effect of fire assertion operation)
Also, the receiver sends a fire assertion signal to the server when the fire assertion operation is performed by the operation unit, and when the server receives the fire assertion signal from the receiver, the server interlocks with the terminal monitoring control device in a predetermined manner. Since the control signal was sent to operate the specified terminal device, the fire alarm system from the receiver was used for the fire alarm system in which the terminal monitoring controller and the receiver were connected to the server via the external wireless network. In response to the output, when the disaster prevention manager visits the site and confirms a fire, it automatically releases the interlocking stop in response to a fire assertion operation and enables interlocking control of terminal equipment such as fire doors and smoke emission equipment ..

(Effect of recovery operation)
Further, the receiver transmits a recovery signal to the server when the recovery operation is performed by the operation unit, and the server transmits a predetermined recovery signal to the terminal monitoring control device when the recovery signal is received from the receiver. Since the wireless sensor that detected the fire and the control device that is operating are restored, the fire alarm system in which the terminal monitoring control device and the receiver are connected to the server via the external wireless network When the fire is extinguished, the receiver performs a recovery operation to recover the terminal monitoring and control device and the operating fire detector and control device, and to return to the normal monitoring state.

(Effect of separating terminal monitoring device and terminal control device)
In addition, the terminal monitoring control device includes a terminal monitoring device that sends a fire signal with the address set by the wireless sensor to the server, and a wireless monitoring device that receives the control signal sent from the server and has the same address. Since it is sent to the repeater and separated from the terminal control device that operates the terminal equipment connected to the wireless repeater, the arrangement of the sensor system equipment and the control equipment equipment is not affected by each other. It becomes possible to further simplify the equipment structure and increase the degree of freedom of the equipment structure.

Explanatory diagram showing an outline of a fire alarm system using a wireless network FIG. 1 is a block diagram showing the functional configurations of the terminal monitoring control device, receiver and server of FIG. Time chart showing the operation of the fire alarm system Explanatory diagram showing installation example of fire alarm system for building Explanatory diagram showing the outline of the fire alarm system with a spare server Explanatory diagram showing an outline of a fire alarm system using a wireless LAN network by tethering a mobile terminal Explanatory diagram showing a fire alarm system separated into a terminal monitoring device and a terminal control device Block diagram showing the functional configuration of the terminal monitoring device, the terminal control device, the receiver and the server of FIG. Explanatory diagram showing a fire alarm system in which a control device is connected by pulling out a transmission path from a terminal control device

[Fire alarm system]
(Outline of fire alarm system)
FIG. 1 is an explanatory diagram showing an outline of the fire alarm system. As shown in FIG. 1, in the fire alarm system of the present embodiment, a terminal monitoring control device 10, a receiver 12 and a sub display panel 15 are installed in a monitored facility 11 such as an office building, and a server 26 is a manufacturer or a maintenance company. It is installed in another place such as a management company. The sub-display board 15 is provided as needed, and is not necessarily provided.

The terminal monitoring control device 10 and the receiver 12 installed in the monitored facility 11 are communicatively connected to the server 26 via the wireless LAN network 20 having the access point 22 functioning as an external wireless network and the Internet 24. ing. The sub display panel 15 installed in the monitored facility 11 is also communicatively connected to the server 26 via the wireless LAN network 20 and the Internet 24.

The terminal monitoring control device 10, the receiver 12 and the sub display panel 15 function as stations of the wireless LAN network 20 and enable communication connection with the Internet 24 through the access point 22.

A plurality of wireless sensors 14 are installed in a warning area monitored by the terminal monitoring and control device 10, and a district sound device 18 is installed as a terminal device connected to the wireless repeater 16. Unique addresses are set in the wireless sensor 14 and the wireless relay 16, and the terminal monitoring and control apparatus 10 pre-registers the addresses of the wireless sensor 14 and the wireless relay 16 assigned to itself. It is registered.

The wireless sensor 14 and the wireless relay 16 operate on, for example, battery power. Further, the district audio device 18 operates by being connected to a power supply line from a power supply device that operates with a commercial AC power supply.

When the smoke concentration or temperature due to a fire exceeds a predetermined threshold, the wireless sensor 14 determines that a fire has occurred and intermittently wirelessly transmits a fire signal to which its own address is set. A radio wave repeater may be installed to prevent signal non-arrival due to attenuation of radio waves in radio communication with the wireless sensor 14 and the wireless repeater 16 that are far from the terminal monitoring control device 10. ..

The fire signal wirelessly transmitted from the wireless sensor 14 is received by the terminal monitoring control device 10. In this case, the terminal monitoring control device 10 compares the sensor address set in the received fire signal with the sensor address registered in advance, and when they match each other, processes them as a valid fire signal and wireless LAN. The fire signal with the detector address set is transmitted to the server 26 via the network 20 and the Internet 24.

When the server 26 receives a fire signal from the terminal monitoring control device 10 via the wireless LAN network 20 and the Internet 24, the fire location is referred to by referring to the property data stored in advance from the address set in the fire signal. The fire alarm information in which the fire district information is set is transmitted to the receiver 12 and the sub display panel 15 via the Internet 24 and the wireless LAN network 20.

Upon receiving the fire alarm signal from the server 26, the receiver 12 outputs a fire alarm accompanied by a fire district display indicating the fire occurrence location. The sub display panel 15 also outputs a fire alarm accompanied by a fire district display indicating the same fire occurrence location as the receiver 12.

Further, when the server 26 receives the fire signal from the terminal monitoring control device 10, the address of the wireless repeater 16 to which one or a plurality of district sound devices 18 corresponding to the fire district information indicating the fire occurrence location is connected is received. The set district sound control signal is transmitted to the terminal monitoring control device 10 via the Internet 24 and the wireless LAN network 20, and the district sound control signal having the repeater address received from the terminal monitoring control device 10 is transmitted. , The local sound device 18 connected to the wireless repeater 16 having the matched address is sounded.

Here, the terminal monitoring control device 10, the wireless sensor 14 and the wireless relay 16 construct an internal wireless network in a guard area within the facility to be monitored, and the wireless sensor 14 and the wireless relay 16 are provided. In the case of Japan, wireless communication between the terminal monitoring control device 10 and the terminal monitoring control device 10 is performed in accordance with the standard of a specific low-power wireless station in the 400 MHz band, for example, 426.2500 MHz to 426.8375 MHz. One of 48 channels having a band of 12.5 KHz is selected and the channel frequency to be used is set.

In this case, the channel frequency may be the same on each floor, or different channel frequencies may be used on adjacent floors, for example, to avoid interference. This internal wireless network will be referred to as a fire alarm wireless network in the following description.

[Function configuration of fire alarm system]
FIG. 2 is a block diagram showing the functional configurations of the terminal monitoring control device, receiver and server of FIG.

(Terminal monitoring control device)
As shown in FIG. 2, the terminal monitoring control device 10 includes a terminal control unit 28, a wireless fire alarm communication unit 30 to which an antenna 32 is connected, and a wireless LAN communication unit 34 to which an antenna 36 is connected. The terminal control unit 28 is configured by a computer circuit having a CPU, a memory, and various input/output ports, and cooperates with the wireless fire alarm communication unit 30 by executing a program, so that the wireless sensor 14 and the district audio device 18 are connected. Communication control according to the protocol of the fire alarm wireless network is performed with the wireless repeater 16 connected to.

When receiving the fire signal from the wireless sensor 14, the terminal control unit 28 recognizes the sensor address of the wireless sensor 14 that has detected the fire set in the fire signal, and this sensor address is set. The wireless LAN communication unit 34 is instructed to transmit the fire signal, and control is performed to transmit the fire signal to the server 26 via the wireless LAN network 20 and the Internet 24.

In addition, when the terminal control unit 28 receives the control signal in which the repeater address is set from the server 26, the terminal control unit 28 transmits to the wireless fire alarm communication unit 30 the control signal in which the repeater address set in this control signal is designated. The control is performed by instructing and wirelessly transmitting and operating the district audio device 18 connected to the wireless repeater 16 that matches the own address.

Note that the terminal monitoring control device 10 is provided with a standby power supply unit in addition to a power supply unit that generates a DC power supply from a commercial AC power supply and supplies it to each unit. Is charging the battery by receiving power from the power supply, and when the commercial AC power fails, the backup power supply switches to the power supply from the battery, and the backup power is supplied for a specified period of time or longer. Can be maintained.

(Receiving machine)
As shown in FIG. 2, the receiver 12 includes a receiver control unit 38, a wireless LAN communication unit 40 to which an antenna 42 is connected, an alarm unit 44, a display unit 46, and an operation unit 48.

The receiver control unit 38 is composed of a computer circuit having a CPU, a memory, and various input/output ports. The wireless LAN communication unit controls the alarm, display, and operation necessary for fire monitoring by executing a program. Perform in cooperation with 40.

The alarm unit 44 is provided with a speaker and outputs an acoustic alarm or a voice message as a fire alarm.

The display unit 46 is provided with a fire representative lamp, an obstacle representative lamp, and the like, a display with a touch panel, and a printer.

The operation unit 48 is provided with various operation switches such as a sound stop switch, a fire determination switch, a district sound stop switch, and a recovery switch.

The wireless LAN communication unit 40 functions as a station of the wireless LAN network 20, is communicatively connected to the server 26 from the access point 22 via the wireless LAN network 20 and the Internet 24, and transmits and receives various signals.

An ESS-ID (Extended Service Set Identifier), which is an identifier of the access point, is preset and registered in the wireless LAN communication unit 34 of the terminal monitoring control device 10 that is communicatively connected to the access point 22. Only the terminal of the identifier ESS-ID which is set and registered can be made to communicate.

The access point control function for establishing a communication connection between the access point 22 and the wireless LAN communication unit 34 of the terminal monitoring control device 10 which is the station is roughly classified into a passive scan system and an active scan system.

In the passive scan method, the beacon frame periodically broadcast by the access point 22 is received by the wireless LAN communication unit 34 of the terminal monitoring control device 10, and the wireless LAN communication unit 34 of the terminal monitoring control device 10 is preset and registered. A probe request frame for inquiring whether the identifier ESS-ID of the access point 22 is the same as the identifier ESS-ID of the access point to be connected is transmitted. The access point 22 returns a probe response frame if the identifier ESS-ID received by the probe request frame is the same as its own identifier ESS-ID, and the wireless LAN communication unit 34 of the terminal monitoring control device 10 receives this. , Confirm that the identifier ESS-ID of the access point 22 is the same as the one registered for setting.

Subsequently, authentication is performed between the wireless LAN communication unit 34 of the terminal monitoring control device 10 and the access point 22 using a preset authentication method, and if the authentication is successful, the wireless LAN communication unit 34 of the terminal monitoring control device 10 When the access point 22 transmits an association request frame as a connection request, and the access point 22 returns an association response frame as a permission response, the connection is completed and packet signal communication is performed.

In the active scan method, when the wireless LAN communication unit 34 of the terminal monitoring control device 10 cannot receive the beacon frame from the access point 22 for a certain time, the wireless LAN communication unit 34 of the terminal monitoring control device 10 connects. If information of desired identifier ESS-ID is transmitted by a probe request frame and a probe response frame is obtained from the access point 22, the process proceeds to authentication and association request and response as in the passive scan method, connection is completed, and packet is transmitted. Communicate signals.

When the fire control signal in which the fire district information is set is received from the server 26, the receiver control unit 38 causes the speaker of the warning unit 44 to sound an acoustic alarm and causes the representative fire light of the display unit 46 to blink. Further, control is performed to display the fire district information indicating the fire occurrence location on the display together with the fire alarm information.

Further, the receiver control unit 38 performs control to stop the acoustic alarm from the alarm unit 44 when the operation of the acoustic stop switch provided in the operation unit 48 is detected during the output of the fire alarm.

Further, when the operation of the fire judgment switch provided in the operation unit 48 is detected during the output of the fire alarm, the receiver control unit 38 instructs the wireless LAN communication unit 40 to send the fire judgment signal to the server 26. The server 26 controls the terminal monitoring control device 10 to perform interlocking control and transfer control.

Further, when detecting operation of the district sound pause switch provided in the operation unit 48 during the output of the fire alarm, the receiver control unit 38 instructs the wireless LAN communication unit 40 to temporarily stop the district sound. The control for transmitting a signal to the server 26 is performed, and the district sound is temporarily stopped by an instruction from the server 26 to the terminal monitoring control device 10.

Further, when the receiver control unit 38 detects the operation of the recovery switch provided in the operation unit 48 after outputting the fire alarm, it instructs the wireless LAN communication unit 40 to transmit the recovery signal to the server 26. Control for controlling the server 26 to restore the server 26, and by transmitting a restoration signal from the server 26 to the terminal monitoring control device 10, the operating district sound connected to the wireless sensor 14 and the operating wireless repeater 16 is transmitted. Restore the device 18.

It should be noted that the receiver 12 is provided with a standby power supply unit in addition to a power supply unit that generates a DC power supply from a commercial AC power supply and supplies it to each unit, and the backup power supply unit includes a battery. The battery is being charged by receiving the power supply from the power supply, and when the commercial AC power supply fails, the standby power supply unit switches to the power supply from the battery, and it is possible to maintain the standby power supply for a predetermined time or longer specified in the standard. There is.

Further, the sub-display panel 15 shown in FIG. 1 has the same functional configuration as that of the receiver 12 shown in FIG. 2 excluding the operation unit 48, and displays the same as the fire alarm display of the receiver 12.

(server)
As shown in FIG. 2, the server 26 includes a server control unit 50, a communication unit 52, a display unit 54, an operation unit 56, and a database 58.

The server control unit 50 is configured by a computer circuit having a CPU, a memory, and various input/output ports, and executes various programs to control various processes necessary for fire monitoring. The communication unit 52 transmits and receives a signal including protocol conversion between the TCP signal (transmission control protocol signal) on the server control unit 50 side and the IP signal (Internet protocol signal) on the Internet 24 side. The display unit 54 is a computer display, and the operation unit 56 is an input device such as a computer keyboard and mouse.

The database 58 stores in advance the property data of the fire alarm system in which the terminal monitoring control device 10, the receiver 12, and the sub display panel 15 are installed. The property data stored in the database 58 is the wireless sensor 14 or the wireless relay device 1 connected to the terminal monitoring control device 10.
Data such as the address, district name, department name, type, line number, sensitivity, storage time, and interlocking relationship with smoke proof equipment are included.

The server control unit 50 functions as the center of fire monitoring control in the fire alarm system, and performs the following control.

When the server control unit 50 receives the fire signal with the address transmitted from the terminal monitoring control device 10 via the wireless LAN network 20 and the Internet 24, the server control unit 50 refers to the property data of the database 58 and responds to the address. The fire area information indicating the fire place such as the area name is acquired, and the fire alarm signal in which the fire area information is set is controlled to be transmitted to the receiver 12 via the Internet 24 and the wireless LAN network 20, The receiver 12 is caused to output a fire alarm in which the fire district information is specified. Note that the fire alarm signal from the server 26 is also transmitted to the sub display panel 15, but will be omitted in the following description.

When the server control unit 50 receives the district sound stop signal from the receiver 12 via the wireless LAN network 20 and the Internet 24 after transmitting the fire alarm signal, the server control unit 50 transmits the district sound stop signal to the Internet 24 and the wireless LAN. The sounding district audio device 18 connected to the wireless repeater 16 is stopped by transmitting it to the terminal monitoring control device 10 via the network 20, and after a predetermined time, the district sound control signal is transmitted to the Internet 24 and the wireless LAN network. It transmits to the terminal monitoring control apparatus 10 via 20 and controls to sound the district sound apparatus 18 again.

Further, when the server control unit 50 receives a fire assertion signal from the receiver 12 via the wireless LAN network 20 and the Internet 24 after transmitting the fire alarm signal, the server control unit 50 transmits the interlocking control signal to the Internet 24 and the wireless LAN network 20. The data is transmitted to the terminal monitoring control device 10 via the device and the interlocking control of the terminal device connected to the wireless repeater (not shown) is performed.

Further, when the server control unit 50 receives the restoration signal from the receiver 12 via the wireless LAN network 20 and the Internet 24 after transmitting the fire alarm signal, the server control unit 50 restores the fire processing control of the server 26 itself and restores it. A signal is transmitted to the terminal monitoring control device 10 via the Internet 24 and the wireless LAN network 20, and control is performed to restore the terminal device connected to the operating wireless sensor 14 or wireless repeater 16.

Further, when the server control unit 50 receives the failure signal transmitted from the terminal monitoring control apparatus 10 via the wireless LAN network 20 and the Internet 24 in the normal monitoring state, the cause of the failure stored in the database 58 and The fault information indicating the countermeasure is acquired, the fault signal in which the fault information is set is transmitted to the receiver 12 via the Internet 24 and the wireless LAN network 20, and the fault alarm sound is output from the alarm unit 44 and displayed. The control unit controls the blinking of the failure representative lamp of the unit 46 to display the failure information on the display.

(Regular report test)
In the fire alarm system shown in FIGS. 1 and 2, a regular notification test is performed in order to guarantee communication connection by a wireless network provided in the system. This regular notification test includes an internal regular notification test between the terminal monitoring control device 10 which is an internal wireless network and the wireless sensor 14 and the wireless relay device 16, and the terminal monitoring control device 10 which is an external wireless network. , The receiver 12 and the sub-display panel 15 and the external regular notification test between the server 26.

In the internal periodic notification test, the wireless sensor 14 and the wireless repeater 16 transmit a regular notification signal in which a self-address is set every predetermined period, and the terminal monitoring control device 10 receives the regular notification signal. When the periodical notification signal cannot be continuously received, it is determined that there is a communication failure, the server 26 is notified of the occurrence of the communication failure, and the server 26 is notified by the wireless communication. A communication failure of the sensor 14 or the wireless relay 16 is notified and an alarm is displayed.

In the external periodical notification test, the terminal monitoring control device 10 transmits, for example, a test fire signal to the server 26, and the server 26 receiving the test fire signal transmits a test fire alarm signal to the receiver 12 and the sub display panel 15, and A test terminal control signal is transmitted to the terminal monitoring controller 10.

When the server 26 does not continuously receive the test fire signal from the terminal monitoring controller 10 for a predetermined number of times, the server 26 determines that there is a communication failure in the external wireless network via the wireless LAN network 20 and the Internet 24, and the server 26 itself. The occurrence of communication failure is notified, and if possible, the server 26 notifies the receiver 12 and the sub-display panel 15 of the communication failure of the external wireless network to display an alarm.

Further, even when the terminal monitoring control device 10 cannot continuously generate the test terminal control signal for a predetermined number of times in response to the transmission of the test fire signal, the communication of the external wireless network via the wireless LAN network 20 and the Internet 24. It is determined that there is a failure, and the terminal monitoring and control apparatus 10 displays a communication failure as an alarm. If possible, the terminal monitoring and control apparatus 10 notifies the server 26 of the occurrence of the communication failure and notifies the server 26 of the occurrence of the communication failure. The communication failure of the external wireless network is notified to 12 and the sub display panel 15 to display an alarm.

Through such a periodical notification test, the communication connection between the terminal monitoring control device 10 that is an internal wireless network and the wireless sensor 14 and the wireless relay device 16 and the terminal monitoring control device 10 that is an external wireless network. The communication connection between the receiver 12, the sub display panel 15 and the server 26 is constantly monitored, and it is possible to quickly respond to the occurrence of a communication failure, and ensure the reliability of the fire alarm system using the wireless network. It is possible.

(Control operation of fire alarm system)
FIG. 3 is a time chart showing the operation of the fire alarm system. As shown in FIG. 3, the terminal monitoring control device 10 monitors the presence or absence of a fire alarm based on the fire detection of the wireless sensor 14 installed in the warning area in step S1, and the wireless sensor 14 detects a fire. When the signal is received and the fire alarm is discriminated, the process proceeds to step S2, and the fire signal in which the address of the wireless sensor 14 that has issued the fire alarm is set is transmitted to the server 26.

When the server 26 receives the fire signal from the terminal monitoring control device 10, the server 26 searches the property data in the database 58 by the address set in the fire signal in step S3 to acquire the fire district information indicating the fire occurrence location. The fire alarm signal in which the fire district information is set is transmitted to the receiver 12. The receiver 12, which has received the fire alarm signal from the server 26, outputs a fire alarm by an alarm sound and display in step S4.

In addition, the server 26 is a wireless repeater to which the district sound device 18 corresponding to the address of the alarm sensor acquired from the property information of the database 58 is connected based on the fire signal received from the terminal monitoring control device 10 in step S5. The address of 16 is acquired, and the district sound control signal in which this address is set is transmitted to the terminal monitoring control device 10.

The terminal monitoring control device 10 that has received the district sound control signal from the server 26 transmits the district sound control signal in step S6 to ring the district sound device 18 connected to the wireless repeater 16 having the matching address. ..

In response to the fire alarm output from the receiver 12 in step S4, the disaster prevention manager operates the sound stop switch provided in the operation unit 48 of the receiver 12, so that the receiver 12 stops sound in step S7. The operation is discriminated, and the acoustic alarm is stopped in step S8.

Then, the person in charge of disaster prevention visits the fire site to check for the presence or absence of a fire, and if the fire is confirmed, operates the fire determination switch provided in the operation unit 48 of the receiver 12. Therefore, when the receiver 12 determines the fire determination operation in step S9, the receiver 12 proceeds to step S10 and transmits a fire determination signal to the server 26.

The server 26 that has received the fire assertion signal from the receiver 12 sets the address of the wireless repeater 16 to which the district audio device 18 corresponding to the fire alarm is connected based on the fire assertion in step S11. The signal is transmitted to the terminal monitoring control device 10. When the terminal monitoring control device 10 receives the interlocking control signal from the server 26, the process proceeds to step S12, the interlocking control signal in which the received address is set is transmitted, and the district sound connected to the wireless repeater 16 in which the address matches. The ringing device 18 is made to ring.

After that, when the fire is extinguished by fire fighting activities, the disaster prevention person operates the recovery switch provided on the operation unit 48 of the receiver 12, and the receiver 12 determines the recovery operation in step 13, and in step S14. The restoration signal is transmitted to the server 26.

The server 26 that has received the restoration signal from the receiver 12 restores the fire control processing of the server 26 itself in step S15, transmits a restoration signal to the terminal monitoring control device 10, and receives the restoration signal. Restores the district audio device 18 connected to the operating wireless sensor 14 and wireless repeater 16 to the same normal monitoring state as before the fire.

[Merit of fire alarm system]
According to such a fire alarm system, the terminal monitoring control device 10 and the receiver 12 are installed in the monitored facility 11 such as an office building, and the fire reception control processing function is provided in the external server 26. By distributing the fire reception control processing function in the server 26, it is possible to simplify the equipment installed in the monitored facility 11.

Further, the equipment to be installed in the facility 11 to be monitored is installed separately in the terminal monitoring control device 10 and the receiver 12, and the wireless monitoring device is installed on the terminal monitoring control device 10 side via the internal wireless fire alarm network. By consolidating equipment devices including a wireless repeater 16 to which control devices such as 14 and district audio devices 18 are connected, and consolidating input/output functions for the user such as alarm, display, and operation in the receiver 12, Compared with the conventional receiver in which the terminal monitoring control device 10 and the receiver 12 are integrated, the configuration of the terminal monitoring control device 10 and the receiver 12 becomes simpler, and the installation work of the system equipment in the monitored facility 11 is performed by the terminal monitoring. The installation work of the control device 10, the wireless sensor 14, the wireless relay 16 and the receiver 12 is mainly performed, and the sensor and the terminal device for the terminal monitoring and controlling device 10 are connected to the wiring, and the terminal monitoring and controlling device 10 The wiring connection between the receiver and the receiver 12 is not required, and the installation work of the equipment is simple and easy.

In addition, by consolidating the fire reception control processing function in the server 26, properties such as sensor address, district name, department name, type, line number, sensitivity, storage time, and interlocking relationship with smoke control equipment, etc. The data is stored and managed in the server 26, and when the property data is changed due to facility renovation or tenant replacement, it is not necessary to go to the receiver installation location and update the property data as in the past. The property data can be easily updated in the server 26.

[Fire alarm system installed in the building]
FIG. 4 is an explanatory diagram showing an installation example of a fire alarm system for a building. As shown in FIG. 4, a building 13 such as a building to be monitored is an n-story building, a terminal monitoring and control device 10 is installed on each floor, and a plurality of wireless sensing devices are installed in a warning area on the same floor. The device 14 and, for example, a wireless repeater 16 to which the district audio device 18 is connected are arranged, and communication connection is possible by a wireless fire alarm network which is an internal wireless network.

The terminal monitoring control device 10 installed on each floor is communicatively connectable to a server 26 on the Internet 24 via the wireless LAN network 20 including the access point 22 shown in FIG.

The receiver 12 is installed in the disaster prevention center or the manager's room on the 1st floor of the building 13 and can be connected to the server 26 on the Internet 24 via the wireless LAN network 20 including the access point 22 shown in FIG. Has been done.

Here, the channel frequency of the wireless fire alarm network used by the terminal monitoring controller 10, the wireless sensor 14, and the wireless relay 16 installed on each floor is set to a different channel frequency for each floor, An independent wireless fire alarm network is built for each floor.

[Server multiplexing]
FIG. 5 is an explanatory view showing an outline of a fire alarm system provided with a spare server. In addition to the embodiment of FIG. 1, two spare servers 26a and 26b are connected to the Internet 24 to multiplex the servers. ing.

The spare servers 26a and 26b have basically the same configuration and functions as the main server 26 shown in FIG. 2, and while the main server 26 is installed at, for example, the Tokyo head office of the manufacturer, the spare servers 26a and 26b are 26b is installed in, for example, an Osaka branch office or a Sendai branch office, which are distant from each other.

When the property information or history information stored in the database of the main server 26 is changed during the operation of the fire alarm system, the changed information is transmitted to the backup servers 26a and 26b in substantially real time, and the database is updated. By updating, the information is synchronized with each other.

In the fire alarm system of FIG. 5 in which servers are multiplexed, for example, when the area where the main server 26 is installed is hit by a disaster such as an earthquake and the server 26 goes down and does not function, terminal monitoring is performed. By switching the connection destinations of the control device 10 and the receiver 12 to either of the normally functioning spare servers 26a and 26b, fire monitoring can be continued and a disaster-resistant system can be constructed.

[Fire alarm system using mobile terminal]
FIG. 6 is an explanatory diagram showing an outline of a fire alarm system using a wireless LAN network by tethering a mobile phone terminal.

As shown in FIG. 6, in the present embodiment, in the monitored facility 11 in which the terminal monitoring control device 10 and the receiver 12 are arranged, a mobile phone terminal equipped with a tethering function corresponding to the access point function of the wireless LAN network. 60 is arranged, and the terminal monitoring control device 10 and the receiver 12 can communicate with the server 26 on the Internet 24 from the mobile phone terminal 60 via the mobile phone network 62 including the base station 64.

The mobile phone terminal 60 is, for example, a smartphone that performs mobile phone communication by W-CDMA known as a third generation mobile communication system (3G), includes a wireless LAN communication unit, and the wireless LAN communication unit is an Ethernet (registered trademark). 2) wireless communication based on IEEE802.11 based on the wireless network, and a wireless LAN line is formed between the terminal monitoring control device 10 and the wireless LAN communication units 34 and 40 provided in the receiver 12 of FIG. Establish and perform data transmission.

In this way, by using the tethering function of the mobile phone terminal 60 to establish a communication connection with the server 26 on the Internet 24, for example, even in a facility to be monitored that is not within the service area of the wireless LAN network, the mobile phone network If it is in the service area 62, it is possible to reliably establish a communication connection with the server 26 on the Internet 24 and construct a fire alarm system.

[Fire alarm system that separates terminal monitoring and terminal control]
(Wireless network)
FIG. 7 is an explanatory view showing a fire alarm system separated into a terminal monitoring device and a terminal control device, and FIG. 8 is a block diagram showing functional configurations of the terminal monitoring device, the terminal control device, the receiver and the server of FIG. ..

As shown in FIG. 7, in the present embodiment, the wireless monitoring device 10 a is arranged for the wireless sensor 14 arranged in the monitoring target facility 11, and the wireless sound device 18 is connected to the local acoustic device 18. The terminal control device 10b is arranged for the repeater 16, and corresponds to a system in which the terminal monitoring control device 10 shown in FIG. 1 is separated into a terminal monitoring device 10a and a terminal control device 10b.

As shown in FIG. 8, the terminal monitoring device 10 a includes a terminal control unit 28 a, a wireless fire alarm communication unit 30 a to which an antenna 32 a is connected, a wireless LAN communication unit 34 a to which an antenna 36 a is connected, and the wireless sensor 14 a. From the wireless LAN communication unit 34a, the wireless fire alarm reception unit 36a receives the fire signal in which the detector address is set according to the wireless fire alarm protocol from the device, and the terminal control unit 28a converts the fire signal into the fire signal according to the wireless LAN protocol. A fire signal is transmitted to the server 26 via the wireless LAN network 20 and the Internet 24.

In addition, the terminal control device 10b includes a terminal control unit 28b, a wireless fire alarm communication unit 30b to which the antenna 32b is connected, and a wireless LAN communication unit 34b to which the antenna 36b is connected, and outputs the terminal control signal transmitted from the server 26. The wireless LAN communication unit 34b receives it via the Internet 24 and the wireless LAN network 20, converts it into a terminal control signal of the wireless fire alarm protocol by the terminal control unit 28b, and transfers it from the wireless fire alarm communication unit 30 to the wireless repeater 16. A terminal control signal is transmitted, and the district audio device 18 connected to the wireless repeater 16 for which the address match is obtained is activated.

In this way, the monitoring target facility 11 is provided with a sensor-type terminal monitoring device 10a to which the wireless sensor 14 is communicatively connected and a control-type terminal control device 10b to which terminal devices such as the district audio device 18 are communicatively connected. By arranging them separately, the device configuration becomes simpler as compared with the case where the both are integrated to form the terminal monitoring control device 10 as shown in FIG. It can be installed as a dedicated device according to the type, and the degree of freedom in system configuration can be increased.

(Wired control terminal)
FIG. 9 is an explanatory diagram showing a fire alarm system in which a transmission path is pulled out from a terminal control device and a control device is connected.

As shown in FIG. 9, similarly to the embodiment of FIG. 7, in the present embodiment, the terminal monitoring device 10a and the terminal control device 10b are separately arranged in the facility 11 to be monitored. The transmission line 70 is pulled out to the caution area, and, for example, the district sound device 18 is connected as a terminal device via the repeater 72 in which a unique address is set. Other configurations and functions are similar to those of the embodiment of FIG.

Here, the transmission path 70 is composed of a transmission line and a power supply line, and connects the terminal control device 10b and the repeater 72 for communication by a predetermined wired fire alarm protocol, and supplies power to the repeater 72 and the district audio device 18. We are supplying.

In the wired fire alarm protocol for communicatively connecting the terminal control device 10b and the repeater 72, the downlink signal from the terminal control device 10b to the repeater 72 is voltage mode transmission, and the voltage of the transmission line 70 is, for example, 18 V and 30 V. It is transmitted as a voltage pulse that varies between. On the other hand, the upstream signal from the repeater 72 is a current mode transmission, a signal current is passed at the timing of bit 1 of the transmission data, and the upstream signal is transmitted as a so-called current pulse train.

In this way, the terminal control device 10b supplies the operating power to the terminal control device 10b by connecting the terminal device such as the district audio device 18 to the terminal control device 10b via the relay 72 via the transmission line 70. Therefore, it is not necessary to prepare an operating power supply for each terminal device, and further, it is possible to easily and surely perform interlocking control of appropriate terminal devices such as fire doors and smoke evacuating devices in addition to the district acoustic device 18. Become.

[Modification of the present invention]
The above-described embodiment uses a wireless LAN network or a mobile phone as a communication connection using a wireless line between the terminal monitoring control device 10, the receiver 12, the sub display panel 15 and the server 26 on the Internet installed in the facility to be monitored. Although a network is used, the present invention is not limited to this, and an appropriate wireless network can be used.

Alternatively, a plurality of wireless networks may be prepared as wireless networks connectable to the Internet, and when a communication failure or a decrease in communication speed occurs, the wireless network may be switched to another wireless network.

Further, the configuration including the Internet, the server, and the database in the above embodiment may be cloud computing. Cloud computing provides convenient and on-demand access to a shared pool of configurable computing resources such as networks, servers, storage, applications, services, and so on.

Further, the present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: terminal monitoring control device 11: monitored facility 12: receiver 14: wireless sensor 15: sub-display 16: wireless relay 18: district audio device 20: wireless LAN network 22: access point 24: internet 26 : Server 26a, 26b: spare server 28, 28a, 28b: terminal control unit 30, 30a, 30b: wireless fire alarm communication unit 34, 34a, 34b, 40: wireless LAN communication unit 38: receiver control unit 44: alarm unit 46, 54: Display units 48, 56: Operation unit 50: Server control unit 58: Database 60: Mobile phone terminal 62: Mobile phone network 64: Base station 70: Transmission path 72: Repeater

Claims (1)

A terminal monitoring control device and an alarm device are installed in the monitored facility, and a server is installed in an external facility, and the terminal monitoring control device and the alarm device are connected to the server,
The terminal monitoring control device is connected to a sensor installed in a warning area, and transmits a signal transmitted from the sensor to the server,
The server receives the signal transmitted from the terminal monitoring control device, performs predetermined processing, and transmits a control signal to the signal based on the processing result,
The alarm device receives the control signal transmitted from the server and outputs a fire alarm,
Fire alarm system characterized by the following.

Images