JP2017194905A - Fire alarm system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To divide a receiver structure into a portion in which a sensor and a control device are monitored and controlled and a portion in which a display operation is performed, thereby connecting both portions by a server on the internet and the wireless network so that the system structure is simplified and the manufacture, the settings, and the operation management are made easy.SOLUTION: A monitoring target facility 11 is installed with a terminal monitoring control device 10 and a receiver 12, and the external facility is provided with a server 26. The facilities are connected via a wireless LAN network 20 and the internet 24. The terminal monitoring control device 10 transmits a fire disaster signal to the server 26 when receiving the wirelessly transmitted fire disaster signal from a fire disaster sensor 14. The server 26 receives the fire disaster signal transmitted from the terminal monitoring control device 10 so as to perform a predetermined processing, and transmits the fire disaster signal to the receiver 12 on the basis of a processing result, thereby outputting a fire disaster alarm.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fire alarm system using a wireless network that detects and alerts a fire.

  Conventionally, receivers of fire alarm systems that monitor fires are installed in disaster prevention centers and management rooms in buildings, and fire detectors and transmitters connected to the sensor line drawn from the receiver to the alert area. By receiving the fire signal from, the fire representative display is performed and the main sound is sounded, the district sound device connected to the control line drawn from the receiver is sounded, and further connected to the control line. Interlocking control of fire doors and fire shutters.

  In such a fire alarm system receiver, the fire detector address, district name, department name, type, line number, sensitivity, accumulation time, and smoke-reducing equipment connected to the receiver are linked. So-called property data is prepared and stored in a nonvolatile memory such as an EEPROM provided in the receiver and used for fire reception control.

  In addition, as a wireless fire alarm system, a wireless sensor is placed in the alert area, a receiving relay is connected to the sensor line drawn from the receiver, and the fire transmitted wirelessly from the wireless sensor The signal is received by the receiving repeater, and the alarm signal is transmitted to the sensor line drawn from the receiver, and the receiver receives the alarm signal transmitted from the receiver relay, thereby generating a fire alarm. I am trying to output.

  In such a wireless fire alarm system, it is not necessary to connect a fire sensor by drawing out a sensor line to the alert area, and the system configuration is simplified and installed by eliminating the need for a sensor line. And cost can be reduced.

JP 2011-189055 A JP 2009-087111 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 alarm unit, operation unit, display unit, All the operation display functions necessary for fire monitoring such as printers are provided, and the configuration of the receiver becomes complicated, and the number of wiring cables drawn from the receiver increases as the size of the facility to be monitored increases. However, there is a problem that the manufacture and installation of the receiver are complicated.

  Also, while the fire alarm system is in operation, it is necessary to change the property data due to facility renovation or tenant replacement, but in the past it was necessary to go to the receiver installation location to update the property data. There is also a problem that takes time.

  In addition, depending on the fire alarm system, you may want to connect a secondary display board etc. to the receiver and see the fire alarm display by the receiver at another location. There is also a problem that installation work takes time and labor.

  On the other hand, in a wireless fire alarm system, the sensor line between the receiver and the fire detector can be made unnecessary, but the other problems remain the same as those of the normal fire alarm system. ing.

  The present invention divides the receiver configuration into a part for monitoring and controlling the sensor and the control device and a part for performing display operation, and both are connected to a server on the Internet via a wireless network to simplify the system configuration, manufacture, An object is to provide a fire alarm system that enables easy installation and operation management.

(Fire alarm system)
The present invention provides a fire alarm system,
A terminal monitoring control device and a receiver are installed in a monitoring target facility and a server is arranged 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 a wireless sensor installed in a warning area via an internal wireless network, and receives a fire signal transmitted from the wireless sensor via an external wireless network. Send a fire signal to the server,
The server receives a fire signal transmitted from the terminal monitoring control device via an external wireless network, performs predetermined processing, 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 that.

(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.

(Mobile device tethering)
The external wireless network is a wireless LAN network that connects the terminal monitoring control device and the receiver to the Internet 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 spare server and synchronizes the information with each other. When a failure occurs in the server, the terminal monitoring control device and the receiver are switched to the connection with the spare server. To continue processing.

(Wireless sensor fire signal)
When a wireless sensor detects a fire, it sends a fire signal with a unique address,
The terminal monitoring and control device receives a fire signal with a unique address set from the wireless sensor and sends it to the server.
Based on the unique address set in the fire signal, the server generates a fire alarm signal with fire area information indicating the location of the fire and sends it to the receiver.
The receiver displays the fire area 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 security area is installed and a terminal device connected to the wireless repeater is installed.
The server sends a terminal control signal in which the address of a predetermined wireless repeater corresponding to the fire occurrence location is set to the terminal monitoring control device,
The terminal monitoring control device operates a terminal device connected to a wireless repeater that matches the address of the terminal control signal transmitted from the server.

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

(Regional 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 control device via the server to stop the sound of the district sound device and stop the district sound device. During the operation, if the operation unit performs the re-sound operation of the district sound, the district sound device is sounded by transmitting a district sound sound signal to the terminal monitoring control device via the server.

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

(Recovery operation)
When the receiver performs a recovery operation using the operation unit, it sends a recovery signal to the server.
When the server receives a recovery signal from the receiver, the server transmits a predetermined recovery signal to the terminal monitoring control device to recover the wireless sensor that has detected the fire and the operating terminal device.

(Separate terminal monitoring device and terminal control device)
Terminal monitoring and control device
A terminal monitoring device for transmitting a fire signal set with an address transmitted from a wireless sensor to a server;
A terminal control device that receives a control signal transmitted from a server and transmits it to a wireless repeater having the same address, and operates a terminal device connected to the wireless repeater;
Separated.

(Basic effect)
The present invention relates to a fire alarm system in which a terminal monitoring control device and a receiver are installed in a monitored facility and a server is arranged 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, and the terminal monitoring and control device is connected to the wireless sensor installed in the alert area via the internal wireless network, and receives the fire signal transmitted from the wireless sensor. The server transmits a fire signal to the server via the wireless network, and the server receives the fire signal transmitted from the terminal monitoring control device via the external wireless network, performs a predetermined process, and controls the control signal based on the processing result. Is transmitted to the receiver via the external wireless network, and the receiver receives a control signal transmitted from the server via the external wireless network and generates a fire alarm. Therefore, terminal monitoring control devices and receivers are installed separately in monitored facilities such as office buildings, and the fire reception control processing function is provided in an external server. By distributing the control processing function, it is possible to simplify the equipment installed in the monitored facility.

  In addition, as equipment installed in the facility to be monitored, the terminal monitoring control device and the receiver are installed separately, and the terminal monitoring control device is connected to a wireless sensor via an internal wireless network, There is no need for wiring connection between the terminal monitoring control device and the terminal side, and there is no need for wiring connection with the receiver via the server of the terminal monitoring control device by using an external wireless network. Compared to conventional fire receivers that integrate the device and receiver, the configuration of the terminal monitoring control device and receiver is simplified, and no wiring connection between them is required, making installation of the equipment easier The cost can be reduced.

  Also, by integrating the fire reception control processing function on the server, property data such as detector address, district name, department name, type, line number, sensitivity, storage time, and smoke-removal device linkage Is stored and managed on the server. When changing property data due to facility renovation or tenant replacement, it is not necessary to go to the receiver installation location and update the property data. Can easily update property data.

(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, or the terminal monitoring control device and the receiver communicate with the Internet via the mobile phone network of the mobile phone terminal. Since the wireless LAN network is connected, it is possible to easily establish a communication connection with the server using the existing wireless LAN network connected to the Internet, and the monitored facility is damaged by a disaster such as an earthquake. Even if it is received, as long as the communication connection with the server is secured, the fire monitoring function as a fire alarm system can be maintained, and a highly reliable system resistant to trouble such as disaster can be constructed. .

(Effects of server multiplexing)
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 include a spare server to which the terminal monitoring control device and the receiver can be connected via an external wireless network. The information of the monitoring control device and the receiver is transferred to the spare server to synchronize each other's information. When a failure occurs in the server, the terminal monitoring control device and the receiver are switched to the connection with the spare server to perform the processing. Since the server has been down due to an earthquake or other disaster during system operation, the fire monitoring function can be maintained continuously by switching to a spare server installed in a different area. A highly reliable system that is resistant to troubles such as disasters can be constructed.

(Effect of fire signal of wireless sensor)
The wireless sensor transmits a fire signal with a unique address when a fire is detected, and the terminal monitoring and control device receives the fire signal with a unique address from the wireless sensor. The server generates a fire alarm signal in which fire area information indicating the location of the fire is set based on the unique address set in the fire signal and transmits it to the receiver. Because the fire area information set in the fire alarm signal received from is displayed, the fire alarm system in which the terminal monitoring controller and receiver are connected to the server via an external wireless network Enables the same operation as fire monitoring.

(Effects of terminal device control)
In addition, a wireless repeater with a unique address set in the alert area and a terminal device connected to the wireless repeater are installed, and the server is a predetermined wireless repeater corresponding to the place where the fire occurred. Terminal control signal to which the address of the terminal is set is transmitted to the terminal monitoring control device, and the terminal monitoring control device operates the terminal device connected to the wireless repeater having the same address of the terminal control signal transmitted from the server. Therefore, the fire alarm system in which the terminal monitoring control device and the receiver are connected to the server via an external wireless network can perform the same operation as the terminal control of the conventional fire alarm system.

(Effect by receiver)
In addition, since the receiver includes an operation unit, and an operation signal generated by the operation of the operation unit is transmitted to the terminal monitoring control device via the server to be operated, the distributed arrangement of the server and the terminal monitoring control device is made conscious. Therefore, a necessary operation can be performed by the operation unit of the receiver.

(Effects of district sound stop operation and re-ring operation)
In addition, when the receiver performs a stop operation of the district sound by the operation unit, the receiver transmits a district sound stop signal to the terminal monitoring control device via the server to stop the sound of the district sound device, and the district sound device When the local sound is re-sounded by the operation unit while the operation is stopped, the local sound device is sent to the terminal monitoring control device via the server to cause the local sound device to ring. For a fire alarm system in which a terminal monitoring controller and receiver are connected to a server via a wireless network, temporary stop of the district sound prior to on-site confirmation performed by the disaster prevention staff when a fire alarm is output at the receiver You can also re-sound the local sound when you go to the site and confirm a fire.

(Effect of fire determination operation)
In addition, the receiver sends a fire decision signal to the server when a fire decision operation is performed by the operation unit. When the server receives a fire decision signal from the receiver, the server performs a predetermined interlocking with the terminal monitoring control device. Because a control signal is transmitted to operate a predetermined terminal device, a fire alarm from a receiver is issued for a fire alarm system in which a terminal monitoring control device and a receiver are connected to a server via an external wireless network. When the disaster prevention manager visits the site for the output and confirms a fire, the interlocking of the terminal equipment such as fire doors and smoke control devices can be controlled automatically by releasing the interlock stop automatically. .

(Effect of recovery operation)
In addition, 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. The fire alarm system in which the terminal monitoring controller and receiver are connected to the server via an external wireless network because the wireless sensor that detected the fire and the control device in operation are restored. When the fire extinguishes, the recovery operation is performed by the receiver, so that the terminal monitoring control device, the fire detector and the control device in operation can be restored, and the normal monitoring state can be restored.

(Effect of separation of terminal monitoring device and terminal control device)
In addition, the terminal monitoring control device includes a terminal monitoring device that transmits a fire signal in which an address transmitted from a wireless sensor is set to a server, and a wireless communication device that receives a control signal transmitted from the server and matches the address. Since it is separated from the terminal control device that transmits to the repeater and operates the terminal device connected to the wireless repeater, the arrangement of the sensor system equipment and the control system equipment without being affected by each other Therefore, the equipment configuration can be further simplified and the degree of freedom of the equipment configuration can be increased.

Explanatory diagram showing an overview of a fire alarm system using a wireless network The block diagram which showed the function structure of the terminal monitoring control apparatus of FIG. 1, a receiver, and a server Time chart showing the operation of the fire alarm system Explanatory drawing showing an installation example of a fire alarm system for a building Explanatory drawing showing the outline of the fire alarm system with a spare server Explanatory drawing which showed the outline of the fire alarm system using the wireless LAN network by tethering of the portable terminal Explanatory diagram showing a fire alarm system separated into a terminal monitoring device and a terminal control device The block diagram which showed the function structure of the terminal monitoring apparatus of FIG. 7, a terminal control apparatus, a receiver, and a server Explanatory drawing which showed the fire alarm system which pulled out the transmission line from the terminal control device and connected the control equipment

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

  The terminal monitoring control apparatus 10 and the receiver 12 installed in the monitoring target facility 11 are communicably connected to a server 26 via a wireless LAN network 20 having an access point 22 that functions as an external wireless network and the Internet 24. ing. The sub display panel 15 installed in the monitoring target facility 11 is also connected to the server 26 via the wireless LAN network 20 and the Internet 24 so as to be communicable.

  The terminal monitoring control device 10, the receiver 12, and the sub display panel 15 function as a station 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 to be monitored by the terminal monitoring control device 10, and a district acoustic device 18 is installed as a terminal device connected to the wireless repeater 16. A unique address is set in the wireless sensor 14 and the wireless repeater 16, and the terminal monitoring control device 10 stores the addresses of the wireless sensor 14 and the wireless repeater 16 assigned to the terminal in advance. It is registered.

  The wireless sensor 14 and the wireless repeater 16 are operated by a battery power source, for example. In addition, the district sound 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 fire exceeds a predetermined threshold value, the wireless sensor 14 determines that a fire has occurred and intermittently wirelessly transmits a fire signal with its own address set. In some cases, a radio wave repeater is installed in order to prevent signal non-arrival due to radio wave attenuation in radio communication with the wireless sensor 14 or the radio repeater 16 that is 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 supervisory control device 10 compares the sensor address set in the received fire signal with a pre-registered sensor address, and processes both as a valid fire signal when they match, A fire signal in which the sensor address is 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 location where the fire has occurred is referred to the property data stored in advance from the address set in the fire signal. The fire alarm signal in which the fire area 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.

  The receiver 12 that has received the fire alarm signal from the server 26 outputs a fire alarm with a fire area display indicating the location of the fire. The sub display panel 15 also outputs a fire alarm with a fire area 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 obtained. The set district acoustic control signal is transmitted to the terminal monitoring control apparatus 10 via the Internet 24 and the wireless LAN network 20, and the district acoustic control signal set with the relay address received from the terminal monitoring control apparatus 10 is transmitted. The district sound device 18 connected to the wireless repeater 16 having the same address is ringed.

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

  In this case, the channel frequencies 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 is referred to as a fire alarm wireless network in the following description.

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

(Terminal monitoring and control device)
As shown in FIG. 2, the terminal monitoring control apparatus 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 constituted by a computer circuit having a CPU, a memory, and various input / output ports. The wireless sensor 14 and the district sound device 18 are linked with the wireless fire alarm communication unit 30 by executing a program. The communication control according to the protocol of the fire alarm wireless network is performed with the wireless repeater 16 to which is connected.

  When receiving a 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 the sensor address is set. The wireless LAN communication unit 34 is instructed to transmit the fire signal, and the server 26 is controlled to transmit the fire signal via the wireless LAN network 20 and the Internet 24.

  Further, when the terminal control unit 28 receives a control signal in which the repeater address is set from the server 26, the terminal control unit 28 sends the control signal specifying the repeater address set in the control signal to the wireless fire alarm communication unit 30. Control is performed to operate the district sound device 18 connected to the wireless repeater 16 that is instructed to be wirelessly transmitted and matches the own address.

  The terminal monitoring control device 10 is provided with a spare 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. The battery is charged by receiving the power supply from the power supply unit. When the commercial AC power supply fails, the standby power supply unit switches to the power supply from the battery and supplies the standby power supply for a predetermined time or longer as defined by the standard. 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 constituted by a computer circuit having a CPU, a memory, and various input / output ports. The wireless LAN communication unit controls alarms, displays, and operations necessary for fire monitoring by executing a program. 40 in conjunction with.

  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, a fault 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 an acoustic stop switch, a fire determination switch, a district acoustic pause switch, and a recovery switch.

  The wireless LAN communication unit 40 functions as a station of the wireless LAN network 20, is 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 an access point, is set and registered in advance in the wireless LAN communication unit 34 of the terminal monitoring control device 10 that is connected to the access point 22. As a result, the access point 22 can communicate only with the terminal having the identifier ESS-ID that has been set and registered.

  An access point control function for performing communication connection between the access point 22 and the wireless LAN communication unit 34 of the terminal monitoring control device 10 serving as the station is roughly classified into a passive scan method and an active scan method.

  In the passive scan method, a 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 set and registered in advance. 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. If the identifier ESS-ID received by the probe request frame is the same as its own identifier ESS-ID, the access point 22 returns a probe response frame, and the wireless LAN communication unit 34 of the terminal monitoring control device 10 receives this. Then, it is confirmed that the identifier ESS-ID of the access point 22 is the same as that set and registered.

  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. When the authentication is successful, the wireless LAN communication unit 34 of the terminal monitoring control device 10 When an association request frame is transmitted as a connection request to the access point 22, 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 period of time, the wireless LAN communication unit 34 of the terminal monitoring control device 10 performs connection. If the information of the desired identifier ESS-ID is transmitted by the probe request frame and the probe response frame is obtained from the access point 22, the process proceeds to the authentication and association request and response as in the passive scan method, and the connection is completed, and the packet Perform signal communication.

  When receiving a fire alarm signal in which the fire area information is set from the server 26, the receiver control unit 38 outputs an acoustic alarm by ringing the speaker of the alarm unit 44 and blinks the representative fire light of the display unit 46. In addition, control is performed to display fire area information indicating a fire occurrence location along with fire alarm information on the display.

  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.

  The receiver control unit 38 instructs the wireless LAN communication unit 40 to send a fire determination signal when the operation of the fire determination switch provided in the operation unit 48 is detected during the output of the fire alarm. Control to transmit to the terminal, and in response to an instruction from the server 26 to the terminal monitoring control apparatus 10, interlock control and transfer control are performed.

  In addition, when the receiver control unit 38 detects an 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 pause the district sound. Control to transmit 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.

  If the receiver control unit 38 detects an operation of a recovery switch provided in the operation unit 48 after outputting a fire alarm, the receiver control unit 38 instructs the wireless LAN communication unit 40 to transmit a recovery signal to the server 26. The operating area sound connected to the wireless sensor 14 and the operating wireless repeater 16 by transmitting the recovery signal from the server 26 to the terminal monitoring control device 10 is restored. The device 18 is restored.

  The receiver 12 is provided with a spare 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 spare power supply unit includes a battery. The battery is charged by receiving the power supply from the power supply, and when the commercial AC power supply fails, the standby power supply can be switched to the power supply from the battery so that the standby power supply can be maintained for a predetermined time or longer as defined by the standard. Yes.

  Further, the sub display board 15 shown in FIG. 1 has the same functional configuration as the receiver 12 shown in FIG. 2 except the operation unit 48, and performs the same display 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 performs various processing controls necessary for fire monitoring by executing a program. The communication unit 52 transmits and receives signals accompanied by protocol conversion between a TCP signal (transmission control protocol signal) on the server control unit 50 side and an 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 or mouse.

  The database 58 stores in advance property data of a 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 includes the address, district name, department name, type, line number, sensitivity, storage time, prevention of the wireless sensor 14 and the wireless repeater 16 connected to the terminal monitoring control device 10. Includes data such as the linkage with smoke exhaust devices.

  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 a fire signal set with an address transmitted from the terminal monitoring control apparatus 10 via the wireless LAN network 20 and the Internet 24, the server control unit 50 refers to the property data in the database 58 and corresponds to the address. Obtain fire area information indicating the location of the fire, such as the name of the area, and send a fire alarm signal in which this fire area information is set to the receiver 12 via the Internet 24 and the wireless LAN network 20, The receiver 12 is caused to output a fire alarm specifying the fire area information. In addition, although the fire alarm signal from the server 26 is also transmitted to the sub display panel 15, it is omitted in the following description.

  In addition, when the server control unit 50 receives the district acoustic 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 acoustic stop signal to the Internet 24 and the wireless LAN. The local sound device 18 that is ringing and transmitted to the terminal monitoring control device 10 via the network 20 and connected to the wireless repeater 16 is stopped, and after a predetermined time, the local sound control signal is transmitted to the Internet 24 and the wireless LAN network. The terminal 20 is transmitted to the terminal monitoring control device 10 via 20 to perform control for re-sounding the district sound device 18.

  In addition, when the server control unit 50 receives a fire determination 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 interlock control signal to the Internet 24 and the wireless LAN network 20. The data is transmitted to the terminal monitoring and control apparatus 10 via the terminal, and the interlocking control of the terminal device connected to the wireless repeater (not shown) is performed.

  In addition, when the server control unit 50 receives a recovery 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 and control apparatus 10 via the Internet 24 and the wireless LAN network 20, and control is performed to restore the terminal devices connected to the operating wireless sensor 14 and the wireless relay device 16.

  In addition, when the server control unit 50 receives a failure signal transmitted from the terminal monitoring control device 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 Fault information indicating countermeasures is acquired, a 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 a fault warning sound is output from the alarm unit 44 and displayed. Control of causing the failure information lamp of the unit 46 to blink and displaying failure information on the display is performed.

(Regular report test)
In the fire alarm system shown in FIG. 1 and FIG. 2, a periodic alarm test is performed in order to guarantee a communication connection by a wireless network provided in the system. The periodic report test includes an internal periodic report test between the terminal monitoring control device 10 serving as an internal wireless network, the wireless sensor 14 and the wireless repeater 16, and a terminal monitoring control device 10 serving as an external wireless network. The external periodic report test between the receiver 12 and the sub display board 15 and the server 26 is divided.

  In the internal periodic notification test, the wireless sensor 14 and the wireless repeater 16 transmit a periodic notification signal in which their own address is set every predetermined period, and this is received by the terminal monitoring control device 10 and is transmitted at a predetermined number of times. If the periodic notification signal cannot be received continuously, it is determined that there is a communication failure, the server 26 is notified of the occurrence of the communication failure, and the wireless communication is performed from the server 26 to the receiver 12 and the sub display panel 15. The communication failure of the sensor 14 or the wireless repeater 16 is notified and an alarm is displayed.

  In the external periodic notification test, the terminal monitoring control device 10 transmits a test fire signal to the server 26, for example, and the server 26 that has received the test fire signal transmits a test fire alarm signal to the receiver 12 and the sub display board 15, A test terminal control signal is transmitted to the terminal monitoring control device 10.

  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 when the test fire signal is not continuously received from the terminal monitoring control device 10 a predetermined number of times. The occurrence of a communication failure is notified, and if possible, the communication failure of the external wireless network is notified from the server 26 to the receiver 12 and the sub display panel 15 to display an alarm.

  In addition, even when the terminal monitoring control device 10 has not been able to continuously generate a test terminal control signal for a predetermined number of times in response to the transmission of the test fire signal, communication between the wireless LAN network 20 and the external wireless network via the Internet 24 is possible. It is determined that there is a failure, the communication failure is displayed on the terminal monitoring control device 10, and if possible, the terminal monitoring control device 10 notifies the server 26 of the occurrence of the communication failure, and the server 26 receives the receiver. 12 and the sub-display panel 15 are notified of a communication failure of the external wireless network and displayed as an alarm.

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

(Control action 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 alert area in step S <b> 1, and fires from the wireless sensor 14. When the fire is detected by receiving the signal, the process proceeds to step S2, and the fire signal in which the address of the wireless sensor 14 that has made the fire is set is transmitted to the server 26.

  When the server 26 receives the fire signal from the terminal monitoring control device 10, it searches the property data in the database 58 by the address set in the fire signal in step S3, and acquires the fire district information indicating the location of the fire. A fire alarm signal in which the fire area information is set is transmitted to the receiver 12. Receiving the fire alarm signal from the server 26, the receiver 12 outputs a fire alarm with an alarm sound and display in step S4.

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

  The terminal monitoring control device 10 that has received the district acoustic control signal from the server 26 transmits the district acoustic control signal in step S6, and rings the district acoustic device 18 connected to the wireless repeater 16 having the same address. .

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

  Subsequently, the person in charge of disaster prevention goes to the fire site to confirm the presence or absence of a fire, and when 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 a 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 determination signal from the receiver 12 is based on the fire determination in step S11, and the interlock control in which the address of the wireless repeater 16 to which the district acoustic device 18 corresponding to the fire alarm is connected is set. The signal is transmitted to the terminal monitoring control device 10. When receiving the interlock control signal from the server 26, the terminal monitoring control apparatus 10 proceeds to step S12, transmits the interlock control signal in which the received address is set, and the district sound connected to the wireless repeater 16 having the matched address. The sounding device 18 is sounded.

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

  The server 26 that has received the recovery signal from the receiver 12 restores the fire control process of the server 26 itself in step S15, and transmits the recovery signal to the terminal monitoring control device 10, and receives the received terminal monitoring control device 10 Restores the district acoustic 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 monitoring target facility 11 such as an office building, and the fire receiving control processing function is provided in the external server 26. By distributing the fire reception control processing function to the server 26, the equipment installed in the monitored facility 11 can be simplified.

  In addition, the equipment installed in the facility 11 to be monitored is divided into a terminal monitoring control device 10 and a receiver 12, and a wireless sensor is installed on the terminal monitoring control device 10 side via an internal wireless fire alarm network. By integrating equipment including the wireless repeater 16 to which the control equipment such as 14 and the district sound device 18 is connected, the receiver 12 is integrated with input / output functions for users such as alarm, display, and operation. Compared to a 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 is simplified. The installation work of the control device 10, the wireless sensor 14, the wireless repeater 16, and the receiver 12 is mainly performed, and the sensor and terminal equipment for the terminal monitoring control device 10 are wired and connected. , Wiring connection between the terminal monitoring control device 10 and the receiver 12 is not required, installation work of the equipment is simple and easy.

  In addition, by integrating the control processing functions for fire reception in the server 26, properties such as detector address, district name, department name, type, line number, sensitivity, storage time, and smoke-removal equipment linkage The data is stored and managed in the server 26. When changing property data 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 view 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, and a terminal monitoring 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. For example, a wireless repeater 16 to which the district sound device 18 is connected is disposed, and communication connection is made possible by a wireless fire alarm network serving as an internal wireless network.

  The terminal monitoring control apparatus 10 installed on each floor can be connected to a server 26 on the Internet 24 via a wireless LAN network 20 having an access point 22 shown in FIG.

  The receiver 12 is installed in the disaster prevention center or the administrator room on the first floor of the building 13 and can be connected to the server 26 on the Internet 24 via the wireless LAN network 20 having the access point 22 shown in FIG. Has been.

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

Server multiplexing
FIG. 5 is an explanatory diagram showing an outline of a fire alarm system provided with spare servers. In addition to the embodiment of FIG. 1, two spare servers 26a and 26b are connected to the Internet 24 to multiplex 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 the main server 26 is installed, for example, in the Tokyo head office of the manufacturer. 26b is installed in the Osaka branch office and 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 spare servers 26a and 26b in substantially real time, and the database The information is synchronized with each other by updating.

  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 destination of the control device 10 and the receiver 12 to any one of the normally functioning spare servers 26a and 26b, the fire monitoring can be continued and a disaster-resistant system can be constructed.

[Fire alarm system using mobile devices]
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 this embodiment, a mobile phone terminal provided with a tethering function corresponding to an access point function of a wireless LAN network in a monitored facility 11 in which the terminal monitoring control device 10 and the receiver 12 are arranged. The terminal monitoring control device 10 and the receiver 12 can be connected to the server 26 on the Internet 24 via the mobile phone network 62 including the base station 64 from the mobile phone terminal 60.

  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), and includes a wireless LAN communication unit. The wireless LAN communication unit is Ethernet (registered trademark). ) Based on the wireless network based on IEEE802.11 and a wireless LAN line between the terminal monitoring control device 10 and the wireless LAN communication units 34 and 40 provided in the receiver 12 of FIG. Establish data transmission.

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

[Fire alarm system separating terminal monitoring and terminal control]
(Wireless network)
FIG. 7 is an explanatory diagram 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, terminal control device, receiver and server of FIG. .

  As shown in FIG. 7, in this embodiment, the terminal monitoring apparatus 10a is arrange | positioned with respect to the radio | wireless sensor 14 arrange | positioned at the monitoring object facility 11, and the radio | wireless type to which the district acoustic apparatus 18 was connected. A terminal control device 10b is arranged with respect to 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 apparatus 10a includes a terminal control unit 28a, a wireless fire communication unit 30a to which an antenna 32a is connected, and a wireless LAN communication unit 34a to which an antenna 36a is connected. The fire signal with the detector address set in accordance with the wireless fire alarm protocol from the wireless LAN is received by the wireless fire alarm receiver 36a, converted into a fire signal according to the wireless LAN protocol by the terminal controller 28a, and transmitted from the wireless LAN communication unit 34a. A fire signal is transmitted to the server 26 via the wireless LAN network 20 and the Internet 24.

  The terminal control device 10b includes a terminal control unit 28b, a wireless fire communication unit 30b to which an antenna 32b is connected, and a wireless LAN communication unit 34b to which an antenna 36b is connected. The terminal control device 10b receives a terminal control signal transmitted from the server 26. The data is received by the wireless LAN communication unit 34b via the Internet 24 and the wireless LAN Internet 20, converted into a terminal control signal of the wireless fire report protocol by the terminal control unit 28b, and sent from the wireless fire report communication unit 30 to the wireless repeater 18. The terminal control signal is transmitted, and the district sound device 18 connected to the wireless repeater 18 with which the address match is obtained is sounded.

  In this way, the sensor-type terminal monitoring device 10a to which the wireless sensor 14 is communicatively connected to the monitoring target facility 11, and the control-type terminal control device 10b to which terminal equipment such as the district acoustic device 18 is communicatively connected. By arranging them separately, the device configuration is simplified compared to the case where the two are integrated into the terminal monitoring control device 10 as shown in FIG. 1, and the terminal control device 10b Installation as a dedicated device according to the type is possible, and the degree of freedom of system configuration can be increased.

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

  As shown in FIG. 9, in the present embodiment as well as the embodiment of FIG. 7, the terminal monitoring device 10 a and the terminal control device 10 b are separately arranged in the monitoring target facility 11. For example, the district audio device 18 is connected as a terminal device via a repeater 72 in which a transmission path 70 is drawn out to a warning area and a unique address is set. Other configurations and functions are the same as those in the embodiment of FIG.

  Here, the transmission line 70 is composed of a transmission line and a power line, and connects the terminal control device 10b and the repeater 72 to each other by a predetermined wired fire protocol, and supplies power to the repeater 72 and the district sound device 18. Supply.

  The wired fire report protocol for communication connection between the terminal control device 10b and the repeater 72 is that the downstream signal from the terminal control device 10b to the repeater 72 is voltage mode transmission, and the voltage of the transmission line 70 is 18 volts and 30 volts, for example. It is transmitted as voltage pulses that change between. On the other hand, the upstream signal from the repeater 72 is 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 operation power to the terminal device by wire-connecting the terminal device such as the district acoustic device 18 via the transmission line 70 to the terminal control device 10b via the repeater 72. It is not necessary to prepare an operating power source for each terminal device, and it is possible to easily and reliably perform interlocking control of appropriate terminal devices such as fire doors and smoke control devices other than the district sound device 18. Become.

[Modification of the present invention]
In the above-described embodiment, a wireless LAN network or a mobile phone is used as a communication connection using a wireless line between the terminal monitoring control device 10, the receiver 12 and the sub display panel 15 installed in the monitoring target facility and the server 26 on the Internet. Although a network is used, an appropriate wireless network can be used without being limited thereto.

  Further, 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.

  The configuration including the Internet, server, and 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, and services.

  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: Monitoring target facility 12: Receiver 14: Wireless sensor 15: Sub display panel 16: Wireless relay device 18: District acoustic device 20: Wireless LAN network 22: Access point 24: Internet 26 : Servers 26a, 26b: Spare servers 28, 28a, 28b: Terminal control units 30, 30a, 30b: Wireless fire communication units 34, 34a, 34b, 40: Wireless LAN communication unit 38: Receiver control unit 44: Alarm unit 46: display unit 48: 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 (11)

A terminal monitoring control device and a receiver are installed in a monitoring target facility and a server is arranged 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 a wireless sensor installed in a security area via an internal wireless network, and receives the fire signal transmitted from the wireless sensor, and then receives the external wireless network. Sending the fire signal to the server via
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 based on a processing result via the external wireless network. To the receiver,
The receiver receives the control signal transmitted from the server via the external wireless network and outputs a fire alarm;
A fire alarm system characterized by that.
2. The fire notification system according to claim 1, wherein the external wireless network is a wireless LAN network that connects the terminal monitoring control device and the receiver to the Internet.
2. The fire alarm system according to claim 1, wherein the external wireless network is a wireless LAN network that connects the terminal monitoring control device and the receiver to the Internet via a mobile phone network of a mobile phone terminal. A fire alarm system characterized by that.
2. The fire alarm system according to claim 1, wherein the terminal monitoring control device and the receiver are connected to each other via the external wireless network in addition to the server connected via the external wireless network. With a server,
The server transfers information of the terminal monitoring control device and the receiver to the spare server to synchronize information with each other. When a failure occurs in the server, the server monitors and controls the device and the receiver. A fire alarm system characterized by switching to connection with the spare server and continuing processing.
In the fire alarm system according to claim 1,
The wireless sensor sends a fire signal with a unique address when a fire is detected,
The terminal monitoring control device receives a fire signal in which the unique address is set from the wireless sensor and transmits it to the server,
The server generates a fire alarm signal in which fire area information indicating a fire occurrence location is set based on the unique address set in the fire signal, and transmits the fire alarm signal to the receiver.
The fire alarm system, wherein the receiver displays the fire area information set in the fire alarm signal received from the server.
In the fire alarm system according to claim 5,
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,
The server transmits a terminal control signal in which an address of a wireless repeater corresponding to the fire occurrence location is set to the terminal monitoring control device,
The terminal monitoring and control device operates the terminal device connected to the wireless repeater that matches the address of the terminal control signal transmitted from the server.
In the fire alarm system according to claim 1,
The receiver includes an operation unit, and transmits an operation signal generated by operation of the operation unit to the terminal monitoring control device via the server to operate the fire alarm system.
In the fire alarm system according to claim 7,
When the receiver performs a stop operation of the district sound by the operation unit, the receiver stops the ringing of the district sound device by transmitting a district sound stop signal to the terminal monitoring control device via the server, When a district sound re-sound operation is performed by the operation unit while the district sound device is stopped, a district sound ring signal is transmitted to the terminal monitoring control device via the server to ring the district sound device. Fire alarm system characterized by letting
In the fire alarm system according to claim 7,
When the receiver performs a fire determination operation by the operation unit, the receiver transmits a fire determination signal to the server,
When the server receives a fire determination signal from the receiver, the server transmits a predetermined interlock control signal to the terminal monitoring control device to operate a predetermined terminal device.
In the fire alarm system according to claim 7,
When the receiver performs a recovery operation using the operation unit, the receiver transmits a recovery signal to the server,
When the server receives a recovery signal from the receiver, the server transmits a predetermined recovery signal to the terminal monitoring control device to recover the operating terminal device.
In the fire alarm system according to claim 1,
The terminal monitoring control device
A terminal monitoring device that transmits to the server a fire signal in which an address transmitted from the wireless sensor is set;
A terminal control device that receives the control signal transmitted from the server, transmits the control signal to a wireless repeater having the same address, and operates a terminal device connected to the wireless repeater;
A fire alarm system characterized by being arranged separately.

Images