JP6965403B2 - Tunnel emergency equipment - Google Patents

Description

The present invention relates to a tunnel emergency facility for monitoring an abnormality in a tunnel by connecting equipment such as a fire detector and a fire hydrant device installed in the tunnel to a disaster prevention receiving panel of a monitoring center by an optical line.

Conventionally, emergency equipment has been installed in tunnels such as automobile-only roads in order to protect people and vehicles from fire accidents that occur in the tunnel.

Such emergency equipment includes a fire detector, a manual notification device, an emergency telephone for fire monitoring and notification, a fire extinguishing plug device for extinguishing a fire and preventing the spread of fire, and a tunnel frame. In order to protect the fire from a fire, a water spray that sprinkles fire extinguishing water is installed from the water spray head, and the equipment of the emergency equipment is connected to the transmission line from the disaster prevention receiver installed in the monitoring center for monitoring and control. By doing so, we are constructing emergency equipment for the tunnel.

Tunnel emergency equipment consisting of disaster prevention receivers and equipment is roughly divided into R-type transmission system and P-type direct delivery system. In the R-type transmission method, equipment such as a fire detector whose address is set is connected to the transmission line by the signal line cable drawn from the disaster prevention receiver, and individual management is performed to detect and control each equipment by transmission control. The P-type direct delivery method that enables this is divided into predetermined section units according to the type of equipment, and multiple equipment belonging to the same section are connected to the signal line drawn out in each section, and detection is performed for each signal line. Take control.

R-type transmission type tunnel emergency equipment has various advantages in terms of function and management because it can be detected and controlled individually by equipment, but in general, transmission control functions are provided for equipment such as fire detectors. If it is provided and the transmission distance is long, it is necessary to provide a relay amplification board, which is expensive.

On the other hand, the P-type direct transmission type tunnel emergency equipment does not need to provide a transmission control function in the fire detector, and it is not necessary to provide a relay amplification panel even if the transmission distance becomes long. Therefore, the R-type transmission type is used. Compared to Since a dedicated signal line is pulled out separately to connect equipment, the number of wires is large, and if the tunnel length is long, the system configuration cost may be rather high.

As tunnel emergency equipment, consider the advantages and disadvantages of R-type transmission method and P-type direct delivery method, tunnel length, vehicle traffic volume, etc., and construct R-type transmission method or P-type direct delivery method tunnel emergency equipment. I try to do it.

Japanese Unexamined Patent Publication No. 2002-246962 Japanese Unexamined Patent Publication No. 11-128381

By the way, in recent tunnel emergency equipment, equipment is connected to a metal transmission line from which a signal line cable is pulled out from a disaster prevention receiver, and the metal transmission line is easily affected by electrical noise. Since signal attenuation increases as the transmission distance increases, relay amplification boards are installed at regular intervals, and if the usage period is prolonged, electrical characteristics may deteriorate due to insulation deterioration and communication problems may occur. There is sex. Furthermore, in recent years, there has been a tendency for tunnel lengths to exceed 10 kilometers, making it difficult to handle with metal transmission lines.

In order to solve such a problem, it is conceivable to use an optical line using an optical fiber cable as a transmission line for tunnel emergency equipment, but there is no example of using an optical line for tunnel emergency equipment, and an optical line is used. Construction of emergency equipment for tunnels has arisen as a new issue.

An object of the present invention is to provide a tunnel emergency facility having high fault tolerance using an optical line that can appropriately deal with a problem of a metal line and an increase in tunnel length.

(Tunnel emergency equipment 1)
The present invention is a tunnel emergency equipment in which predetermined equipment is installed in the tunnel.
A disaster prevention receiver that sends and receives optical signals to and from equipment,
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects equipment,
A spare optical line that is laid from the disaster prevention receiver to the terminal device and connects equipment,
With
When the terminal device normally receives the test signal transmitted from the disaster prevention receiver via the regular optical line, the termination device transmits the test response signal to the disaster prevention receiver.
The disaster prevention receiver
Sends a test signal through the common optical line termination device,
When the test response signal is received from the terminal device and it is judged that the regular optical line is normal, the optical signal is transmitted and received by the regular optical line.
If the test response signal is not received from the termination device and it is determined that there is a failure in the regular optical line, the optical signal is transmitted and received by the spare optical line.
It is characterized by that.

(Tunnel emergency equipment 2)
The present invention is a tunnel emergency equipment in which predetermined equipment is installed in the tunnel.
A disaster prevention receiver that sends and receives optical signals to and from equipment,
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects equipment,
A spare optical line that is laid from the disaster prevention receiver to the terminal device and connects equipment,
With
When the terminal device normally receives the test signal transmitted from the disaster prevention receiver via the regular optical line and the spare optical line, the termination device transmits the test response signal to the disaster prevention receiver.
The disaster prevention receiver
Sends a test signal through the common optical line and spare optical line termination device,
When the test response signal is received via the regular optical line and it is judged that the regular optical line is normal, the optical signal is transmitted and received by the regular optical line.
If the test response signal is not received via the regular optical line and it is judged that the regular optical line is faulty , and the test response signal is received via the spare optical line and the spare optical line is judged to be normal, Sending and receiving optical signals via a spare optical line,
It is characterized by that.

(Bypass relay of line failure by optical relay device and termination device)
Further, in another embodiment of the present invention, it is a tunnel emergency equipment in which predetermined equipment is installed in the tunnel.
A disaster prevention receiver that sends and receives optical signals to and from equipment,
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects equipment,
A spare optical line that is laid from the disaster prevention receiver to the terminal device and does not connect equipment.
An optical relay device connected between the disaster prevention receiver and the termination device by a regular optical line and a spare optical line,
With
The optical relay device bypasses the optical signal between the spare optical line and the regular optical line in the event of a failure of the regular optical line with the disaster prevention receiver.
The terminating device bypasses the optical signal between the spare optical line and the regular optical line in the event of a failure of the regular optical line with the optical relay device.
The disaster prevention receiver normally sends and receives optical signals via a regular optical line, and when a regular optical line fails, it sends and receives optical signals via a regular optical line and a spare optical line.
It is characterized by that.

(Bypass relay of line failure by termination device)
Further, in another embodiment of the present invention, it is a tunnel emergency equipment in which predetermined equipment is installed in the tunnel.
A disaster prevention receiver that sends and receives optical signals to and from equipment,
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects equipment,
A spare optical line that is laid from the disaster prevention receiver to the terminal device and does not connect equipment.
With
The terminating device bypasses the optical signal between the spare optical line and the regular optical line in the event of a failure of the regular optical line.
The disaster prevention receiver normally sends and receives optical signals via a regular optical line, and when a regular optical line fails, it sends and receives optical signals via a regular optical line and a spare optical line.
It is characterized by that.

(Basic effect)
The present invention is a tunnel emergency equipment in which predetermined equipment is installed in a tunnel, and is laid from a disaster prevention receiving board to a terminal device, and a disaster prevention receiving board for transmitting and receiving optical signals between a plurality of equipments and devices. , A regular optical line for connecting equipment and a spare optical line laid from the disaster prevention receiver to the terminal device to connect the equipment, and the termination device is a regular optical line (and spare) from the disaster prevention receiver. When the test signal transmitted via the optical line) is normally received, the test response signal is transmitted to the disaster prevention receiving board, and the disaster prevention receiving board connects the terminal device to the terminal device via the regular optical line (and the spare optical line). If the test signal is transmitted and the normal optical line is judged to be normal, the optical signal is transmitted and received by the normal optical line, and if it is judged that the normal optical line is faulty (and the spare optical line is normal), the spare optical line is used. Since optical signals are transmitted and received via optical lines, long-distance communication of about 50 to 80 kilometers is possible without optical amplification by using optical lines, and it is possible to handle tunnel lengths exceeding 10 kilometers. There are no problems of electrical noise or deterioration over time, and stable and highly reliable communication within a tunnel is possible for a long period of time.

In addition, the optical line consists of two lines, a regular optical line and a spare optical line. When a line failure such as a disconnection of the regular optical line is detected, the optical line fails by switching to the communication of the spare optical line. Even if it occurs, the situation where communication becomes impossible is avoided, fault tolerance is improved, and high reliability can be ensured.

In addition, the condition of the regular optical line that is normally used is monitored by the test of the disaster prevention receiving board, and if a line failure such as disconnection occurs, the disaster prevention receiving board judges this and makes a spare optical line. In the tunnel emergency equipment 2, the spare optical line is also monitored by the test of the disaster prevention receiver, so it is functioning normally against the line failure of the regular optical line. It enables switching to a spare optical line, reliably recovers from an optical line failure, improves fault tolerance, and ensures communication reliability.

(Effect of bypass relay of line failure by optical relay device and termination device)
Further, another embodiment of the present invention is a tunnel emergency equipment in which a predetermined equipment is installed in the tunnel, and is a disaster prevention receiving panel for transmitting and receiving an optical signal to and from the equipment and a disaster prevention receiving panel. Disaster prevention reception by a regular optical line that is laid from the board to the terminal device and connects equipment, a spare optical line that is laid from the disaster prevention reception board to the terminal device and does not connect equipment, and a regular optical line and a spare optical line The optical relay device is provided with an optical relay device connected between the board and the terminal device, and the optical relay device is provided between the spare optical line and the regular optical line in the event of a failure of the regular optical line between the board and the termination device. The optical signal is bypassed and relayed, and when the regular optical line with the optical relay device fails, the optical signal is bypassed between the spare optical line and the regular optical line, and the disaster prevention receiver is usually At times, optical signals are transmitted and received by the regular optical line, and when the regular optical line fails, optical signals are transmitted and received by the regular optical line and the spare optical line. Therefore, between the disaster prevention receiver and the optical relay device. When a disconnection failure occurs in the regular optical line, the optical signal is transmitted to and from the equipment located on the terminal device side of the failure location by transmitting the optical signal via the spare optical line by the detour control of the optical relay device. It is possible to improve the fault tolerance without causing transmission failure due to disconnection failure.

In addition, when a disconnection failure occurs in the regular optical line between the optical relay device and the termination device, the termination device at the location of the failure is transmitted by transmitting an optical signal via the spare optical line by bypass control of the termination device. Optical signals can be transmitted to and from equipment located on the side, and similarly, transmission failure does not occur due to disconnection failure, and fault tolerance is improved.

(Effect of bypass relay of line failure by termination device)
Further, another embodiment of the present invention is a tunnel emergency equipment in which a predetermined equipment is installed in the tunnel, and is a disaster prevention receiving panel for transmitting and receiving an optical signal to and from the equipment and a disaster prevention receiving panel. It is equipped with a regular optical line that is laid from the board to the terminal device and connects equipment, and a spare optical line that is laid from the disaster prevention receiver to the terminal device and does not connect the equipment. In the event of a failure, the optical signal is bypassed between the spare optical line and the regular optical line, and the disaster prevention receiver sends and receives the optical signal through the regular optical line during normal times, and is used regularly when the regular optical line fails. Since the optical signal is transmitted and received by the optical line and the spare optical line, if a disconnection failure occurs in the regular optical line, the failure is caused by the transmission of the optical signal via the spare optical line by the detour control of the termination device. Optical signals can be transmitted to and from equipment located on the terminal device side of the occurrence location, and transmission failure does not occur due to disconnection failure, improving fault tolerance.

Explanatory drawing showing the outline of tunnel emergency equipment using optical lines Explanatory drawing which showed embodiment of disaster prevention receiver and equipment provided in FIG. 1 by functional composition Explanatory drawing which showed embodiment of the controller provided in FIG. 2 by a functional configuration. Explanatory drawing which showed embodiment of the termination apparatus provided in FIG. 1 by a functional configuration. Explanatory drawing which showed other embodiment of the disaster prevention receiving board and equipment provided in FIG. 1 by a functional configuration. Explanatory drawing which showed other embodiment of the disaster prevention receiving board and equipment provided in FIG. 1 by a functional configuration. Explanatory drawing showing the outline of tunnel emergency equipment equipped with emergency telephone equipment using optical lines Explanatory drawing which showed embodiment of disaster prevention receiver and equipment provided in FIG. 7 by functional composition Explanatory drawing showing a mobile phone used by connecting to a telephone jack on the fire hydrant device side Explanatory drawing showing another embodiment of tunnel emergency equipment using an optical line which bypasses a line failure by an optical relay amplifier.

[Overview of emergency tunnel equipment]
FIG. 1 is an explanatory diagram showing an outline of a tunnel emergency facility using an optical line. As shown in FIG. 1, inside the tunnel 10, fire detectors 22 are installed at intervals of 50 meters in the longitudinal direction of the tunnel to detect a flame caused by a fire, and a nozzle is installed to extinguish the fire and prevent the spread of fire. Fire hydrant devices 24 that house the attached hose are installed at intervals of 50 meters.

Further, in the tunnel 10, as equipment other than the fire detector 22 and the fire hydrant device 24, a manual notification device and an emergency telephone are provided for fire notification, and further, in order to protect the tunnel frame and the inside of the duct from a fire. A water spray that sprinkles fire extinguishing water from the water spray head is installed, but the illustration is omitted.

On the other hand, a disaster prevention receiving board 12 is installed in a monitoring center or the like, and a regular optical line 14-1 and a spare optical line 14-2 are pulled out from the disaster prevention receiving board 12 to the tunnel 10 and installed in the tunnel 10. The equipment of the fire detector 22 and the fire hydrant device 24 and other emergency equipment are connected via the optical converter 18.

Further, a termination device 20 for monitoring a failure such as a disconnection of the optical line is connected to the termination of the regular optical line 14-1 and the spare optical line 14-2.

An optical fiber cable such as FTTH is used for the regular optical line 14-1 and the spare optical line 14-2, and optical wavelength division multiplexing (WDM) using, for example, an IP packet or the like is performed.

Further, a power supply line 16 is pulled out from the disaster prevention receiving panel 12 into the tunnel to supply power to the equipment provided in the optical converter 18, the fire detector 22 and the fire hydrant device 24 installed in the tunnel. There is.

For the disaster prevention receiver 12, fire extinguishing pump equipment 26, cooling pump equipment 28 for ducts, ventilation equipment 30, alarm display board equipment 32, radio rebroadcasting equipment 34, television monitoring equipment 36, lighting equipment 38, and IG. The slave station equipment 40 and the like are provided, and except that the IG slave station equipment 40 is connected by a data transmission line, the other equipment is individually connected to the disaster prevention receiver 12 by a P-type signal line.

Here, the ventilation equipment 30 is equipment that gives energy to the air in the tunnel by the high blowing wind speed due to the operation of the jet fan installed on the ceiling side in the tunnel to cause a ventilation flow in the longitudinal direction of the tunnel.

The alarm display board equipment 32 is equipment for displaying an abnormality in the tunnel on an electric display board to notify the user in the tunnel. The radio rebroadcasting facility 34 is a facility for allowing a driver or the like to receive information from a road administrator in a tunnel. The TV monitoring facility 36 is a facility for confirming the scale and position of a fire, operating a water spray facility, and grasping the situation in a tunnel when evacuation guidance is performed.

The lighting equipment 38 is equipment for driving and managing the lighting equipment in the tunnel. Further, the IG slave station equipment 40 is a communication equipment that connects the disaster prevention receiving panel 12 and the remote monitoring and control equipment 42, which is a higher-level equipment provided outside, via the network 44.

[Functional configuration of equipment]
FIG. 2 is an explanatory diagram showing an embodiment of the disaster prevention receiver and the equipment provided in FIG. 1 in terms of functional configuration.

(Disaster prevention receiver)
As shown in FIG. 2, the disaster prevention receiving panel 12 includes a panel control unit 46, and the panel control unit 46 is a function realized by, for example, executing a program. Hardware includes a CPU, a memory, various input / output ports, and the like. Use a computer circuit or the like equipped with.

The panel control unit 46 is provided with two transmission units 48 and an optical transmission / reception unit 50, and a regular optical line 14-1 is pulled out from one optical transmission / reception unit 50 into a tunnel, and the other optical transmission / reception unit 50. A spare optical line 14-2 is pulled out from the tunnel, and an optical converter 18 provided corresponding to, for example, a fire detector 22 and a fire extinguisher device 24 is connected to a branched optical line via an optical distributor 15. Has been done.

The two transmission units 48 and the optical transmission / reception unit 50 for the panel control unit 46 may be a plurality of sets, if necessary. For example, when the disaster prevention receiving panel 12 monitors the disaster prevention equipment of the up tunnel and the down tunnel, at least two sets of two transmission units 48 and an optical transmission / reception unit 50 for the panel control unit 46 are provided.

The panel control unit 46 communicates with a display unit 52 equipped with a liquid crystal display, a printer, etc., an operation unit 54 equipped with various switches, an alarm unit 56 equipped with a speaker, an alarm indicator light, etc., and external monitoring equipment. A modem 58 for connecting the IG slave station equipment 40 is provided, and further, the fire extinguishing pump equipment 26, the cooling pump equipment 28, the ventilation equipment 30, the alarm display board equipment 32, the radio rebroadcasting equipment 34, and the television monitoring equipment shown in FIG. An IO unit 60 to which the 36 and the lighting equipment 38 are connected is provided.

The transmission unit 48 transmits and receives packet signals (electrical signals) according to a predetermined serial communication protocol.

The optical transmission / reception unit 50 converts the packet signal from the transmission unit 48 into an optical signal in a predetermined downlink wavelength band and transmits the optical signal to the optical line, and also transmits the optical signal in the predetermined uplink wavelength band received from the optical line to the packet signal. Converted to (electric signal) and output to the transmission section.

For example, the optical transmitter / receiver 50 includes an electric / optical converter (E / O converter) including a laser diode that converts an electric signal into an optical signal, and an optical / optical converter (E / O converter) that includes a photodiode that converts an optical signal into an electric signal. It includes an electric converter (O / E converter) and a WDM filter that separates an optical signal in the uplink wavelength band from the optical line and synthesizes and sends an optical signal in the downlink wavelength band to the optical line.

In the present embodiment, optical amplification is required in the middle by performing, for example, CWDM (coarse WDM) transmission known as optical wavelength division multiplexing communication with a wide wavelength interval by the transmission unit 48 and the optical transmission / reception unit 50. A transmission distance of about 50 to 80 kilometers is secured without any problem, and even if the tunnel length exceeds 10 kilometers, it can be appropriately handled.

The panel control unit 46 instructs the transmission unit 48 corresponding to the regular optical line 14-1 to control the transmission and reception of packet signals to and from the equipment installed in the tunnel via the optical transmission / reception unit 50.

Here, the equipment installed in the tunnel includes detection system equipment such as a fire detector 22, a transmitter 76, and a fire hydrant switch 80 that transmit a detection signal and a switch signal to the panel control unit 46, and panel control. It can be divided into control system equipment such as a red indicator lamp 74 and a response lamp 78 controlled by the unit 46.

Therefore, the panel control unit 46 includes a poll command for sequentially designating the unique IP address assigned to the equipment for the fire detector 22, the transmitter 76, and the fire extinguisher switch 80, which are the equipment of the detection system. It controls the repeated transmission of the call packet signal, and when the detection system equipment receives the call packet signal that matches its own IP address, it sends a response packet signal including its own status information such as fire detection and switch-on. Send back.

Further, the panel control unit 46 has a control packet signal including a control command that specifies a unique IP address when control is required for the red indicator lamp 74 and the response lamp 78, which are the equipment of the control system. When the detection system equipment receives a call packet signal that matches its own IP address, it controls the lighting and blinking of the indicator light.

The panel control unit 46 also repeatedly transmits a call packet signal including a poll command in which IP addresses are sequentially specified for the control system equipment, and a response packet indicating each state. You may have the signal returned.

The specific control by the panel control unit 46 is as follows. When the panel control unit 46 detects a fire by receiving a response packet signal (fire signal) including fire information from the fire detector 22, the alarm unit 56 outputs a fire alarm and other equipment via the IO unit 60. Controls to instruct the interlocking of.

Further, when the panel control unit 46 detects a fire by receiving a response packet signal (fire notification signal) including fire notification information by operating the transmitter 76 provided in the fire hydrant device 24, the panel control unit 46 uses the alarm unit 56 to give a fire alarm. Is output, and control is performed to instruct the interlocking of other equipment via the IO unit 60. Further, the IP addresses of the response lamp 78 and the red indicator lamp 74 provided in the fire hydrant device 24 operated by the transmitter 76 are specified. It controls the transmission of the control packet signal including the control command, turns on the response lamp 78, and controls to blink the red indicator lamp 74.

On the other hand, the panel control unit 46 instructs the transmission unit 48 to control the normal optical line 14-1 and the spare optical line 14-2 to transmit the test signal at predetermined intervals via the optical transmission / reception unit 50. When the termination device 20 normally receives the test signal, it sends back a test response signal. As a result, the panel control unit 46 allows the normal optical line 14-1 and the spare optical line 14-2 to function normally. I have confirmed that it is.

On the other hand, for example, if a disconnection failure occurs in the regular optical line 14-1, the test response signal from the terminating device 20 is not received, and the panel control unit 46 determines that the failure occurs in the regular optical line 14-1. Control is performed to switch between transmission and reception via the normally functioning backup optical line 14-2.

(Functional configuration on the equipment side)
As shown in FIG. 2, an optical converter 18 is provided on the equipment side where the fire detector 22 and the fire hydrant device 24 are provided. The optical converter 18 includes two systems of optical transmission / reception units 62 corresponding to the regular optical line 14-1 and the spare optical line 14-2, and the transmission / reception side of the electric signal is set to the signal conversion unit via the switching unit 64. It is connected to the gateway 66 that functions as. The optical transmission / reception unit 62 on the regular optical line 14-1 side corresponds to the first optical transmission / reception unit according to the claim, and the optical transmission / reception unit 62 on the backup optical line 14-2 side corresponds to the second optical transmission / reception unit according to the claim. handle.

The optical transmission / reception unit 62 is the same as the optical transmission / reception unit 50 provided in the disaster prevention receiver 12, and includes an electric / optical converter (E / O converter), an optical / electric converter (O / E converter), and a WDM filter. The light signal in the downlink wavelength band from the optical line is converted into an electric signal and output to the switching unit 64, and the electric signal from the switching unit 64 is converted into an optical signal in the uplink wavelength band into the optical line. Output.

In the normal state, the switching unit 64 is switched to a state in which the optical transmission / reception unit 62 on the normal optical line 14-1 side and the gateway 66 are connected to each other, and the normal optical line 14-1 is used to connect to the disaster prevention receiver board 12. Signals are sent and received between them.

On the other hand, when a disconnection failure occurs in the regular optical line 14-1, the signal reception from the regular optical line 14-1 is cut off, and when the signal reception is cut off for more than a predetermined time, the regular optical line 14 is cut off. It is determined that the failure is -1, and control is performed to switch to the connection state between the optical transmission / reception unit 62 on the backup optical line 14-2 side and the gateway 66.

Further, when the restart of signal reception is detected from the optical transmission / reception unit 62 on the regular optical line 14-1 side while the connection is switched between the optical transmission / reception unit 62 on the spare optical line 14-2 side and the gateway 66, It is determined that the failure recovery of the regular optical line 14-1 is performed, and control is performed to switch to the connection state between the optical transmission / reception unit 62 on the regular optical line 14-1 side and the gateway 64 to recover.

The gateway 66 performs protocol conversion between the IP protocol on the optical line side and the TCP protocol on the equipment side, for example, Ethernet (registered trademark) which is a predetermined LAN protocol. The gateway 66 has connection functions for all seven layers in the OSI basic reference model, but the gateway 66 may be replaced with a router. The router has a connection function of layers 1 to 3 of the OSI basic reference model, and similarly, it is possible to perform protocol conversion between the IP protocol on the optical line side and the predetermined LAN protocol on the equipment device side.

The LAN line 68 is connected to the equipment side of the gateway 66, the fire detector 22 is directly connected to the LAN line 68, and the red indicator lamp 74 and the response lamp 78, which are the equipment equipment of the control system, are controllers. It is connected to the LAN line 68 via the 70, and the transmitter 76 and the fire hydrant switch 80, which are the equipment of the detection system, are connected to the LAN line 68 via another controller 72.

The transmission between the gateway 66 provided in the optical converter 18 and the controllers 70 and 72 provided in the fire detector 22 and the fire hydrant device is used in the R-type fire alarm system in addition to the transmission by the LAN protocol. It may be used as a fire transmission protocol.

In the case of the fire transmission protocol, the downlink signal from the transmission section of the gateway 66 to the transmission section of the fire detectors 22 and the controllers 70 and 72 is transmission in voltage mode, and is a voltage pulse that changes the voltage of the transmission line in a predetermined voltage range. Is transmitted as. On the other hand, the uplink signal from the transmission unit of the fire detector 22 and the controllers 70 and 72 to the transmission unit of the gateway 66 is transmission in the current mode, and a signal current is passed through the transmission line at the timing of bit 1 of the transmission data. The uplink signal is transmitted as a so-called current pulse train.

FIG. 3 is an explanatory view showing an embodiment of a controller provided on the fire hydrant device side of FIG. 2 by a functional configuration, and FIG. 3 (A) shows a controller used for equipment of a control system. 3 (B) shows the controller used for the equipment of the detection system.

The controller 70 used in the equipment of the control system shown in FIG. 3A includes a terminal control unit 82, a LAN transmission unit 84, and a drive circuit unit 86. The terminal control unit 82 uses a computer circuit or the like provided with a CPU, a memory, various input / output ports, and the like. A unique IP address is set in the LAN transmission unit 84, and when the address of the packet signal received via the LAN line 68 and the self-address match, the terminal control unit 82 sets the control command in the packet signal. A control signal based on the above is output to the drive circuit unit 86, and control is performed to blink the red indicator lamp 74 connected as, for example, equipment. The drive circuit unit 86 keeps the red indicator lamp 74 in the lit state in the normal state. Further, the controller 70 connected to the response lamp 78 shown in FIG. 2 is the same as in FIG. 3 (A).

The controller 72 used in the detection system of FIG. 3B includes a terminal control unit 82, a LAN transmission unit 84, and an input circuit unit 88. A unique IP address is set in the LAN transmission unit 84. For example, a transmitter 76 is connected to the input circuit unit 88 as equipment, and when the switch is turned on by the push button operation of the transmitter 76, the input circuit unit 88 detects the switch on and outputs a fire alarm signal. .. When the terminal control unit 82 detects the fire report signal from the input circuit unit 88, the terminal control unit 82 instructs the LAN transmission unit 84 to generate and transmit a packet signal in which the IP address of the disaster prevention receiver 12 and the fire report information are set. I do.

It is desirable that the switch used for the transmitter 76 is a non-lock type switch. By using a non-lock type switch for the transmitter 76, it is not necessary to perform a recovery operation after performing the switch operation.

Further, the controller 72 connected to the fire hydrant switch 80 shown in FIG. 2 is the same as in FIG. 3 (B). Further, the fire hydrant switch 80 is a switch that is turned on when the fire hydrant valve opening / closing lever provided in the fire hydrant device 24 is operated to the open position, and a packet signal including a pump start command of the fire hydrant pump equipment is transmitted to the disaster prevention receiving panel 12. Will be done. Further, the fire hydrant switch 80 is connected in parallel with a fire extinguishing pump start switch (not shown) used by the fire brigade provided in the fire hydrant device 24.

Further, since the fire detector 22 of FIG. 2 has a built-in function of the LAN transmission unit, it is not necessary to externally attach a controller. Further, in FIG. 2, although the controllers 70 and 72 are externally attached to the equipment, the equipment may be integrated.

Further, the power supplies of the controllers 70 and 72 shown in FIG. 3 are supplied from the disaster prevention receiving panel 12 by the power supply line 16 as shown in FIG. 1, but in a normal state such as the transmitter 76 and the fire hydrant switch 80. The equipment controller 72 of the equipment shown in FIG. 3B, which is turned off, is provided with a battery power supply, and in the normal state where the switch is off, the controller 72 is operated by the battery power supply, and the switch is operated in the event of a fire or inspection. When the above is performed, the power is switched from the disaster prevention receiving panel 12 to operate the controller 72, thereby reducing the power consumption on the equipment side.

Further, regarding the terminal control unit 82 provided with the CPUs of the controllers 70 and 72 of FIGS. 3A and 3B, the power consumption is reduced in the sleep mode in the normal state, and the display control and the switch operation are performed. The sleep mode may be canceled by wake-up to operate in the normal mode.

(Functional configuration of termination device)
FIG. 4 is an explanatory diagram showing an embodiment of the termination device provided in FIG. 1 by a functional configuration. As shown in FIG. 4, the termination device 20 is provided with an optical transmission / reception unit 90 and a gateway 92 in two systems corresponding to the regular optical line 14-1 and the spare optical line 14-2, and is terminated following the gateway 92. A control unit 96 is provided.

The two optical transmission / reception units 90 are the same as the optical transmission / reception unit 62 provided in the optical converter 18 of FIG. 2, and convert an optical signal in the downlink wavelength band from the optical line into an electric signal and output it to the gateway 92. Further, the electric signal from the gateway 92 is converted into an optical signal in the uplink wavelength band and output to the optical line.

The two gateways 92 are also the same as the gateway 66 provided in the optical converter 18 of FIG. 2, and convert between the IP protocol on the optical transmission / reception unit 90 side and the TCP protocol on the termination control unit 96 side.

The terminal control unit 96 receives the test packet signal transmitted from the disaster prevention receiving panel 12 side at a predetermined cycle to each of the regular optical line 14-1 and the spare optical line 14-2, and transmits the test response packet signal. Control is performed. For example, when the reception of the test packet signal via the optical transmission / reception unit 90 and the gateway 92 on the side of the regular optical line 14-1 is stopped, the test response packet signal is not transmitted, whereby the disaster prevention receiver 12 The disconnection failure of the regular optical line 14-1 is determined on the side, and the optical communication is switched to the spare optical line 14-2.

[Optical converter with one-to-one correspondence to equipment]
(Direct branch of optical line)
FIG. 5 is an explanatory diagram showing another embodiment of the disaster prevention receiver and the equipment provided in FIG. 1 in terms of functional configuration.

As shown in FIG. 5, in the present embodiment, a plurality of optical distributors 15 are provided on the regular optical line 14-1 and the spare optical line 14-2, and each optical distributor 15 is provided with an optical converter 18. It is characterized in that equipment is individually connected via the device.

Here, since the plurality of optical distributors 15 provided in the regular optical line 14-1 and the spare optical line 14-2 use an optical distributor accommodating the plurality of optical distributors, light can be easily and easily applied. Line connection branching is possible.

Further, the present embodiment is characterized in that the equipment is provided with the optical converter 18 in a one-to-one correspondence.

As shown in FIG. 5, the functional configuration on the disaster prevention receiver 12 side is the same as that in the embodiment of FIG. 2, but on the equipment side, an optical converter 18 is provided corresponding to the fire detector 22. Further, an optical converter 18 is provided corresponding to each of the red indicator lamp 74, the transmitter 76, the response lamp 78, and the fire hydrant switch 80 provided in the fire hydrant device 24.

As shown in FIG. 2, the optical converter 18 includes two systems of optical transmission / reception units 62 corresponding to the regular optical line 14-1 and the spare optical line 14-2, and the optical transmission / reception unit 62 is switched to the switching unit 64. Although it is connected to the gateway 66 that functions as a signal conversion unit via the device, the equipment is individually connected to the LAN port of the gateway 66 via the controller 70 or the controller 72.

By providing the optical converter 18 individually for each equipment in this way, it becomes possible to handle the equipment in the same manner as when the optical communication function is mounted on the equipment, and it becomes easy to construct a communication system using an optical line.

In addition, when a failure occurs on the equipment side, it is possible to easily perform necessary repairs and replacements of the failed equipment including the optical converter 18 without affecting other equipment. ..

(Branched optical line)
FIG. 6 is an explanatory diagram showing another embodiment of the disaster prevention receiver and the equipment provided in FIG. 1 in terms of functional configuration.

As shown in FIG. 6, in the present embodiment, the regular optical line 14-1 and the spare optical line 14-2 are branched by the optical distributor 15 on the equipment side, and the optical converter is converted into the branched optical line. It is characterized in that equipment is connected via 18.

By connecting the equipment to the optical line obtained by branching the regular optical line 14-1 and the spare optical line 14-2 in this way, the regular optical line 14-1 and the spare optical line are compared with the embodiment shown in FIG. The loss of the optical signal in 14-2 can be reduced.

Further, as in the embodiment of FIG. 5, by individually providing the optical converter 18 for each equipment, the same handling as when the optical communication function is mounted on the equipment becomes possible, and the communication system using the optical line can be used. In addition, if a failure occurs on the equipment side, it is easy to repair and replace the failed equipment including the optical converter 18 without affecting other equipment. Make it possible to do.

[Emergency telephone equipment]
FIG. 7 is an explanatory diagram showing an outline of a tunnel emergency facility provided with an emergency telephone facility using an optical line, and FIG. 8 shows an embodiment of the disaster prevention receiver and the facility equipment provided in FIG. 7 by functional configuration. FIG. 9 is an explanatory diagram showing a mobile phone used by connecting to a telephone jack on the fire hydrant device side.

(Composition of emergency telephone equipment)
As shown in FIG. 7, in the present embodiment, in addition to the tunnel emergency equipment shown in FIG. 1, a fire hydrant device 24 installed in the tunnel and a disaster prevention receiving panel 12 installed in the monitoring center An emergency telephone facility is provided between the two, which is used by inspectors who inspect the fire hydrant device 24 to keep in touch with each other.

The emergency telephone equipment of the present embodiment is equipped with VoIP telephone equipment (voice over Internet protocol telephone equipment) known as digital telephone equipment.

In the VoIP telephone equipment of the present embodiment, the center-side telephone 98 is provided on the disaster prevention receiver 12, and the mobile phone 100 is connected to the telephone jack of the fire extinguisher device 24 to connect the center-side telephone 98 and the mobile phone 100. The spare optical line 14-2 is used, and the telephone number management server 102 is connected to the monitoring center side of the spare optical line 14-2.

As shown in the functional configuration of FIG. 8, the center-side telephone 98 provided in the disaster prevention receiver 12 is connected to the optical transmission / reception unit 50 corresponding to the spare optical line 14-2 via the gateway 104. The other functional configurations of the disaster prevention receiver 12 are the same as those in FIG.

In the optical converter 18 provided on the equipment side, the gateway 106 is connected to the optical transmission / reception unit 62 corresponding to the spare optical line 14-2, and the telephone jack 108 provided in the fire hydrant device 24 is connected to the gateway 106. Has been done. Other than that, the functional configuration on the equipment machine side is the same as that of the second embodiment.

The mobile phone 100 shown in FIG. 9 is connected to the telephone jack 108 of the fire hydrant device 24. As shown in FIG. 9, the mobile phone 100 includes a receiving unit 110, a transmitting unit 112, and an operating unit 114, and a telephone plug 118 is connected to the tip of the curl cord 116. The telephone plug 118 is shown in FIG. It can be used for a call by inserting it into the telephone jack 108 on the side of the fire hydrant device 24.

As described above, the VoIP telephone equipment of the present embodiment is composed of the center side telephone 98, the telephone number management server 102, the gateways 104 and 106, and the telephone jack 108 to which the mobile telephone 100 is connected, and the fire extinguisher device 24 for inspection is performed. With the mobile phone 100 connected to the telephone jack 108 of the above, it is possible to make a call with the center-side telephone 98 of the disaster prevention receiver 12.

(Call control)
Call control by VoIP telephone equipment consists of call control for calling the other party's telephone and voice data transmission / reception control. For example, a case where an inspector connects a mobile phone 100 to a telephone jack 108 will be described as an example of call control as follows.

The inspector dials the telephone number of the center-side telephone 98, which is the other party, by his / her mobile phone 100. Upon receiving the dial signal from the mobile phone 100, the gateway 106 inquires the telephone number management server 102 of the IP address of the other party via the optical transmission / reception unit 62 and the backup optical line 14-2. The telephone number management server 102 responds to an inquiry from the gateway 106 with the IP address of the gateway 104 of the disaster prevention receiver 12 which is the other party.

The gateway 106 of the optical converter 18 that receives the answer of the IP address from the telephone number management server 102 transmits the call signal to the IP address received as the answer. This call signal is received by the gateway 104 of the disaster prevention receiving board 12, and the call by the center side telephone 98 starts. The inspector who was waiting on the monitoring center side who received the call completes the call by performing the hook-up operation of the center side telephone 98 and enters the call connection state.

When the inspectors make a call using the mobile phone 100 and the center side telephone 98, for example, the voice signal from the mobile phone 100 by the inspector on the fire extinguisher device 24 side is compressed and encoded by the gateway 106 and then converted into an IP packet. Then, it is converted into an optical signal by the optical transmission / reception unit 62 and transmitted to the backup optical line 14-2. The gateway 104 of the center-side telephone 98 receives an IP packet addressed to itself from the optical transmission / reception unit 50, returns it to a voice signal, outputs voice from the center-side telephone 98, and an inspector on the monitoring center side can hear this.

(Mobile phone with gateway function)
In the embodiment of FIG. 8, the optical converter 18 on the fire extinguisher device 24 side is provided with a gateway 106 used for a call of the mobile phone 100. However, some mobile phones 100 have a gateway function. When using the mobile phone 100 provided with the above, the gateway 106 of the optical converter 18 is removed, and the telephone jack 108 is connected to the optical transmitter / receiver 62 on the spare optical line 14-2 side.

By using the mobile phone 100 provided with the gateway function in this way, it is not necessary to provide the gateway 106 in the optical converter 18 on the fire extinguisher device 24 side, the configuration of the VoIP telephone equipment is simplified, and the equipment cost is reduced. be able to.

[Bypass control of line failure by optical relay amplifier]
10A and 10B are explanatory views showing another embodiment of the tunnel emergency equipment using an optical line for bypassing a line failure by an optical relay amplifier, FIG. 10A shows a normal state, and FIG. 10B shows a normal state. Indicates the occurrence status of line failure.

As shown in FIG. 10 (A), the regular optical line 14-1 and the spare optical line 14-2 are pulled out from the disaster prevention receiving panel 12 into the tunnel 10, and the fire detector 22 and the fire hydrant device 24 shown in FIG. The optical converter 18 is connected to the regular optical line 14-1 every time, and the termination device 20 is further connected to the termination.

Here, since the optical converter 18 is connected only to the regular optical line 14-1, only one optical transmission / reception unit 62 shown in FIG. 2 is required, and the switching unit 64 is unnecessary.

In addition to this, in the present embodiment, the optical relay amplifier 120 is provided in the middle of the regular optical line 14-1 and the spare optical line 14-2. The optical relay amplifier 120 reproduces and amplifies the optical signal received from the regular optical line 14-1 and the spare optical line 14-2, converts it into an optical signal again and transmits it, and at the same time, when a failure occurs in the optical line, the spare optical is used. It has a detour control function for transmitting and receiving optical signals between the line 14-2 and the regular optical line 14-1. This detour control function is also provided in the termination device 20.

Further, with the provision of the optical relay amplifier 120 in the middle of the regular optical line 14-1 and the spare optical line 14-2, the disaster prevention receiving panel 12 is connected to the regular optical line 14-1 between the optical relay amplifier 120. And the spare optical line 14-2, and the optical relay amplifier 120 monitors the regular optical line 14-1 and the spare optical line 14-2 between the termination device 20 and the terminal device 20.

In order to monitor this optical line, the disaster prevention receiver 12 periodically transmits a test signal to the optical relay amplifier 120, and the optical relay amplifier 120 receives the test signal and transmits the test response signal. Further, the optical relay amplifier 120 periodically transmits a test signal to the terminal device 20, and upon receiving the test signal, the terminal device 20 transmits a test response signal.

Now, as shown in FIG. 10B, it is assumed that a disconnection failure occurs in the regular optical line 14-1 between the disaster prevention receiver board 12 and the optical relay amplifier 120. The disaster prevention receiver 12 cannot receive the test response signal to the test signal transmitted to the optical relay amplifier 120, so that the occurrence of a disconnection failure is detected, and the optical relay amplifier using the spare optical line 14-2 is used. The detour control is instructed to 120, and at the same time, the transmission / reception of the optical signal to both the regular optical line 14-1 and the spare optical line 14-2 is switched.

As shown by the dotted line, the optical relay amplifier 120, which has received the detour control instruction from the disaster prevention receiving panel 12, reproduces the optical signal received from the spare optical line 14-2 and then converts it into an optical signal again to convert it into a normal light. It is transmitted to the line 14-1, and after the optical signal received from the regular optical line 14-1 is reproduced, it is converted into an optical signal again and transmitted to the spare optical line 14-2.

Therefore, even if a disconnection failure 130 occurs in the regular optical line 14-1, the optical converter 18 connected to the regular optical line 14-1 on the terminal side with respect to the location where the disconnection failure 130 occurs has a spare optical line. An optical signal is transmitted from 14-2 by a route bypassed by the optical relay amplifier 120, and communication is not disabled due to the occurrence of a disconnection failure 130.

Further, when a disconnection failure occurs in the regular optical line 14-1 between the optical relay amplifier 120 and the terminating device 20, the terminating device 20 performs detour control to cause the optical converter 18 and the optical converter 18 due to the occurrence of the disconnection failure. There is no need for communication between them. The number of optical relay amplifiers 120 is not limited to one, and a plurality of optical relay amplifiers 120 may be provided as needed.

[Modification of the present invention]
(OLT and ONU)
In the above embodiment, the disaster prevention receiving board 12 and the optical converter 18 on the equipment side are provided with the functions of the optical transmission / reception units 50 and 62, but the optical transmission / reception unit 50 of the disaster prevention reception board 12 is used for optical communication. The used OLT (Optical Line Thermal) may be used, and ONU (Optical Network Unit) known as an optical network unit may be used as the optical transmission / reception unit 62 on the equipment side.

(Gateway device)
In the above embodiment, the optical converter 18 and the termination device 20 on the equipment side are provided with the functions of the gateways 66 and 92, but as the gateways 66 and 92, a commercially available gateway device may be used.

(Equipment)
In the above embodiment, as the equipment monitored and controlled by the optical line, a red indicator lamp, a transmitter, a response lamp and a fire hydrant switch provided in the fire detector and the fire hydrant device are taken as an example, but other emergency use The same applies to the equipment of equipment.

(optical line)
In the above embodiment, a regular optical line and a spare optical line are pulled out from the disaster prevention receiving panel into the tunnel to connect the equipment, but the present invention is not limited to this. For example, a disaster prevention receiver and a plurality of equipment in a tunnel are ring-connected by an optical line, and usually, an optical signal is transmitted from the disaster prevention receiver in one direction of the ring optical line, and a disconnection failure occurs in the ring optical line. If this occurs, an optical signal is transmitted from the disaster prevention receiver to both directions of the ring optical line for recovery. Further, the ring optical line may be doubled if necessary.

(Non-IP)
In the above embodiment, the disaster prevention receiver and the equipment are provided by setting the IP address in the transmission part of the equipment such as the red indicator lamp, the transmitter, the response lamp and the fire hydrant switch provided in the fire detector and the fire hydrant device. Transmission control is performed according to the IP protocol via an optical line with, but is not limited to this. For example, an address other than the IP address may be set in the terminal device, and transmission control may be performed via an optical line using a predetermined communication protocol, for example, a fire transmission protocol used in an R-type fire alarm system.

(others)
In addition, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values shown in the above embodiments.

10: Tunnel 12: Disaster prevention receiver 14-1: Regular optical line 14-2: Spare optical line 15: Optical distributor 16: Power supply line 18: Optical converter 20: Termination device 22: Fire detector 24: Fire extinguisher device 46: Panel control unit 48: Transmission unit 50, 62, 90: Optical transmission / reception unit 64: Switching unit 66, 92, 104, 106: Gateway 68: LAN line 70, 72: Controller 74: Red indicator light 76: Transmitter 78: Response lamp 80: Fire extinguisher switch 82: Terminal control unit 84: LAN transmission unit 86: Drive circuit unit 88: Input circuit unit 96: Termination control unit 98: Center side telephone 100: Mobile telephone 102: Telephone number management server 108: Telephone jack 120: Optical relay amplifier

Claims (4)

It is a tunnel emergency equipment in which the specified equipment is installed in the tunnel.
A disaster prevention receiver that transmits and receives optical signals to and from the equipment
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects the equipment.
A spare optical line that is laid from the disaster prevention receiver to the terminal device and connects the equipment.
With
When the terminal device normally receives the test signal transmitted from the disaster prevention receiver via the regular optical line, the termination device transmits the test response signal to the disaster prevention receiver.
The disaster prevention receiver is
Sends a test signal through the common optical line to said termination device,
When the test response signal is received from the termination device and it is determined that the regular optical line is normal, the optical signal is transmitted and received by the regular optical line.
If the test response signal is not received from the termination device and it is determined that there is a failure in the regular optical line, the optical signal is transmitted and received by the spare optical line.
The tunnel emergency equipment is characterized by this.
It is a tunnel emergency equipment in which the specified equipment is installed in the tunnel.
A disaster prevention receiver that transmits and receives optical signals to and from the equipment
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects the equipment.
A spare optical line that is laid from the disaster prevention receiver to the terminal device and connects the equipment.
With
When the terminal device normally receives the test signal transmitted from the disaster prevention receiving board via the regular optical line and the spare optical line, the terminal device transmits the test response signal to the disaster prevention receiving board.
The disaster prevention receiver is
Sends a test signal through the common optical line and the spare optical network to the terminating device,
When the test response signal is received via the regular optical line and it is determined that the regular optical line is normal, the optical signal is transmitted and received by the regular optical line.
The test response signal is not received via the regular optical line, the failure of the regular optical line is determined , and the test response signal is received via the spare optical line , and the spare optical line is normal. If it is determined, the optical signal is transmitted and received by the spare optical line.
The tunnel emergency equipment is characterized by this.
It is a tunnel emergency equipment in which the specified equipment is installed in the tunnel.
A disaster prevention receiver that transmits and receives optical signals to and from the equipment
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects the equipment.
A spare optical line laid from the disaster prevention receiver to the terminal device and not connected to the equipment.
An optical relay device connected between the disaster prevention receiver and the terminal device by the regular optical line and the spare optical line.
With
The optical relay device bypasses and relays the optical signal between the spare optical line and the regular optical line in the event of a failure of the regular optical line between the disaster prevention receiving panel and the disaster prevention receiving panel.
The termination device bypasses and relays the optical signal between the spare optical line and the regular optical line in the event of a failure of the regular optical line between the optical relay device and the optical relay device.
The disaster prevention receiver normally transmits and receives the optical signal by the regular optical line, and when the regular optical line fails, the disaster prevention receiver transmits and receives the optical signal by the regular optical line and the spare optical line.
The tunnel emergency equipment is characterized by this.
It is a tunnel emergency equipment in which the specified equipment is installed in the tunnel.
A disaster prevention receiver that transmits and receives optical signals to and from the equipment
A regular optical line that is laid from the disaster prevention receiver to the terminal device and connects the equipment.
A spare optical line laid from the disaster prevention receiver to the terminal device and not connected to the equipment.
With
In the event of a failure of the conventional optical line, the termination device bypasses and relays the optical signal between the spare optical line and the conventional optical line.
The disaster prevention receiver normally transmits and receives the optical signal by the regular optical line, and when the regular optical line fails, the disaster prevention receiver transmits and receives the optical signal by the regular optical line and the spare optical line.
The tunnel emergency equipment is characterized by this.

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