JP2016103059A - Tunnel disaster prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tunnel disaster prevention system in which a configuration causing a P type transmission method-based R type transmission method to be mixed, discriminating the number of alarm issuances of a fire detector, and enabling an alarm control is simple, and reduction of costs is achieved.SOLUTION: An R type transmission unit 42 and a P type transmission unit 44 are provided in a disaster prevention reception board 10. The R type transmission unit 42 is configured to connect a plurality of fire detectors 16 to an R type transmission line 12 drawn into a tunnel, and individually detect a fire alarm issuance of the fire detector by a transmission control. The P type transmission unit is configured to divide terminal devices into a plurality of blocks, and connect a plurality of terminal devices belonging to the same block, for example, a transmitter to a P type signal line 14 drawn into the tunnel by a block unit. A control unit 40 is configured to, when discriminating the fire alarm issuance of a first fire detector by the R type transmission unit, treat the fire alarm issuance thereof as a preliminary alarm, perform an interlocking control of one part of a plurality of interlocking facilities, and when discriminating the fire alarm issuance of a second fire detector, treat the fire alarm issuance thereof as a fire to perform the interlocking control of the interlocking facilities.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a tunnel disaster prevention system that monitors a malfunction in a tunnel by connecting a fire detector and other terminal equipment installed in the tunnel to a disaster prevention monitoring panel.

  Conventionally, emergency facilities have been installed in tunnels for exclusive use of automobiles and the like in order to protect people and vehicles from fire accidents that occur in the tunnel.

  Such emergency facilities are equipped with fire detectors, manual notification devices, emergency telephones for fire monitoring and reporting, fire hydrant devices for fire extinguishing and fire spread prevention, and tunnel enclosures. In order to protect against fire, a water spray that sprays water for fire extinguishing from the water spray head is installed, and a disaster prevention system is built by monitoring and controlling the terminal equipment of these emergency facilities. .

  A tunnel disaster prevention system composed of a disaster prevention receiving board and terminal equipment is roughly divided into an R type transmission system and a P type direct transmission system. The R-type transmission method connects a terminal device such as a fire detector whose address is set to the transmission line, and enables individual management to perform detection and control for each terminal device by transmission control. A plurality of terminal devices belonging to the same partition are connected to a signal line drawn out for each partition according to the type of device, and detection and control are performed for each signal line.

  R-type transmission tunnel disaster prevention system has various advantages in terms of function and management because it can be individually detected and controlled by terminal equipment, but generally has a transmission control function for terminal equipment such as fire detectors. In addition, when the transmission distance becomes long, it becomes expensive because it is necessary to provide a relay amplifier board.

  On the other hand, the P-type direct transmission type tunnel disaster prevention system does not need to provide a transmission control function for the fire detector, and it is not necessary to provide a relay amplifier panel even if the transmission distance becomes long. Compared with the simple and inexpensive system configuration, it is not possible to perform individual management that performs detection and control for each terminal device, but also categorizes it into terminal device types and terminal device sections such as fire detectors and manual notification devices. Since the dedicated signal line is pulled out and the terminal device is connected, the number of wires increases, and if the tunnel length is long, the system configuration cost may be increased.

  As a tunnel disaster prevention system, considering the merits and demerits of the R type transmission method and the P type direct delivery method, the tunnel length, the traffic volume of the vehicle, etc., the tunnel disaster prevention system of the R type transmission method or the P type direct delivery method will be constructed. I have to.

Japanese Patent Laid-Open No. 2002-246962 JP-A-11-128381

  By the way, in the recent tunnel disaster prevention system, when the first fire alarm of the fire detector is discriminated by the disaster prevention reception board, it is handled as a preliminary alarm, and the specific equipment is linked and controlled. If a second fire alarm is detected by the fire detector, it is required to treat it as a fire and control all the equipment in conjunction.

  However, in order to cope with the P-type direct transmission type tunnel disaster prevention system, it is necessary to individually determine the fire alarm of the fire detector connected to the P-type signal line drawn from the disaster prevention reception board. A new device is required to greatly change the P-type transmission part of the detector and the disaster prevention reception board, the configuration of the fire detector and the disaster prevention reception board becomes complicated, and the equipment cost becomes expensive.

  On the other hand, in the R type transmission system tunnel disaster prevention system, it is possible to respond because the number of fire detectors can be detected, but the R type transmission system is also adopted for terminal devices other than the fire detector. Therefore, there is a problem that the equipment cost becomes expensive as compared with the P-type direct delivery system.

  The present invention provides a tunnel disaster prevention system that is easy to configure and can reduce costs by enabling alarm control in which the number of fire detectors is determined by mixing R-type transmission systems based on P-type direct delivery systems. The purpose is to do.

(Tunnel disaster prevention system 1)
The present invention relates to a disaster prevention system for monitoring a fire prevention receiver installed in a tunnel by connecting a fire detector and a terminal device other than the fire detector to the disaster prevention receiver.
In disaster prevention reception board,
An R-type transmission unit for connecting a plurality of fire detectors to a transmission line drawn into the tunnel and individually detecting fire alarms by the fire detectors based on predetermined transmission control with the fire detectors;
Divide multiple terminal devices into one or more sections for each type, connect multiple terminal devices belonging to the same section to the signal line drawn in the tunnel in the tunnel unit, and perform fire-related operations for any of the multiple terminal devices A P-type transmission unit that detects a unit of partition;
When it is determined that a fire-related operation is detected by the P-type transmission unit, a predetermined alarm control or facility control is performed, and when the detection of the fire alarm of the first fire detector by the R-type transmission unit is determined, A control unit that performs predetermined preliminary alarm control and performs predetermined fire alarm control when it is determined that the fire detection of the two fire detectors by the R-type transmission unit is detected;
Is provided.

(Tunnel disaster prevention system 2)
The present invention is a disaster prevention system for monitoring a fire prevention receiver installed in a tunnel and monitoring a terminal device other than a fire detector with a signal line connected to a disaster prevention receiver.
In disaster prevention reception board,
An R-type transmission unit for connecting a plurality of fire detectors to a transmission line drawn into the tunnel and individually detecting fire alarms by the fire detectors based on predetermined transmission control with the fire detectors;
Divide multiple terminal devices into one or more sections for each type, connect multiple terminal devices belonging to the same section to the signal line drawn in the tunnel in the tunnel unit, and perform fire-related operations for any of the multiple terminal devices A P-type transmission unit that detects a unit of partition;
When it is determined that a fire-related operation has been detected by the P-type transmission unit, predetermined alarm control or equipment control is performed, and the detection of the fire alarm of the first fire detector by the R-type transmission unit or by the P-type transmission unit When it is determined that a fire-related operation has been detected in one section, predetermined preliminary alarm control is performed, and fire detection of two fire detectors by the R-type transmission unit, or the first unit by the R-type transmission unit A control unit that performs predetermined fire alarm control when both the detection of the fire alarm of the fire detector and the detection of the fire-related operation of one section by the P-type transmission unit are determined;
Is provided.

(When the terminal device is a transmitter)
Terminal equipment other than the fire detector is a transmitter,
The P-type transmission unit divides a plurality of transmitters into one or a plurality of sections, connects a plurality of transmitters belonging to the same section to a signal line drawn in a section unit in the tunnel, and Fire notification based on operation is detected for each unit,
The control unit performs predetermined preliminary alarm control when it is detected that the fire alarm of the first fire detector is detected by the R-type transmission unit or the fire notification of one section is detected by the P-type transmission unit. Both fire detection of two fire detectors by the transmission unit, or detection of fire notification of the first fire detector by the R type transmission unit and detection of fire notification of one section by the P type transmission unit If it is determined, predetermined fire alarm control is performed.

(When the terminal device is a pump activation operation means)
Terminal equipment other than the fire detector is a pump activation operation means,
The P-type transmission unit divides a plurality of pump activation operation means into one or a plurality of sections, and connects a plurality of pump activation operation means belonging to the same section to a signal line drawn in a section unit in the tunnel, thereby starting a plurality of pumps Detect any pump activation operation of the operation means for each section,
The control unit performs predetermined preliminary alarm control when it is determined that the fire detection of the first fire detector by the R-type transmission unit or the detection of the pump activation operation of one section by the P-type transmission unit is performed. Detection of fire alarms of two fire detectors by the type transmission unit, detection of fire alarms of the first fire detector by the R type transmission unit, and detection of pump start operation of one section by the P type transmission unit When both of these are determined, predetermined fire alarm control is performed.

(Preliminary alarm and fire alarm linked to equipment)
The control unit interlocks and controls some of the plurality of interlocking facilities as preliminary alarm control, and interlocks and controls all of the plurality of interlocking facilities as fire alarm control.

  For example, the control unit controls CCTV monitoring equipment and lighting equipment in a predetermined state as preliminary alarm control, and CCTV monitoring equipment, lighting equipment, ventilation equipment, alarm display board equipment, and radio reproduction broadcasting equipment as fire alarm control. All equipment including is controlled in conjunction with a predetermined state.

(Fire hydrant valve open / close detection switch)
The pump activation operation means includes a fire hydrant valve opening / closing detection switch and a pump activation switch provided in the fire hydrant device.

(Automatic valve device)
Terminal equipment other than the fire detector includes an automatic valve device for water spray equipment equipped with a motorized valve for operation,
The P-type transmission unit divides a plurality of automatic valve devices into one or a plurality of sections, and connects a motor operated valve for the automatic valve apparatus belonging to the same section to a signal line drawn in a section unit in the tunnel,
The control unit transmits an open control signal to the operating motor valve provided in the automatic valve device of a predetermined section through a signal line based on the establishment of the start condition of the water spray equipment, and the automatic valve device by the opening control of the operating motor valve Sprinkle water for fire extinguishing with the opening action of.

(Effect of tunnel disaster prevention system 1)
The present invention relates to a disaster prevention system in which a fire detector installed in a tunnel and a terminal device other than the fire detector are connected to a disaster prevention receiver and monitored, and a transmission line drawn into the tunnel to the disaster prevention receiver. Connected to multiple fire detectors, and based on the prescribed transmission control between the fire detectors, R type transmission unit that individually detects fire alarms by fire detectors, and multiple terminal devices for each type P type that divides into one or a plurality of sections, connects a plurality of terminal devices belonging to the same section to a signal line drawn out in a section in the tunnel, and detects any fire-related operation of the plurality of terminal devices in a section unit When the detection of fire-related operations by the transmission unit and P-type transmission unit is determined, predetermined alarm control or equipment control is performed, and the detection of the fire alarm of the first fire detector by the R-type transmission unit is determined If a predetermined preliminary alarm When the fire detection of two fire detectors is determined by the R-type transmission unit, a control unit that performs predetermined fire alarm control is provided. The fire transmission of the fire detector can be identified individually by configuring the transmission part of the panel as an R-type transmission system and configuring the other terminal equipment and its disaster prevention reception panel as a P-type direct transmission system. A system that can easily and easily discriminate the number of fire detectors can be configured without the need for a new P-type direct delivery system, and the R-type transmission system is a P-type direct delivery system. Therefore, it is possible to suppress the increase in cost to a necessary minimum as compared with the case where all are R-type transmission systems.

  Also, by alerting in stages according to the progress of the fire, in the preliminary alarm stage to notify the possibility of fire, alerts are given to managers and vehicles driving in the tunnel, etc. The preparedness for fire alarms is encouraged, and when a fire alarm is issued after a fire is detected, the necessary measures can be taken promptly and appropriately, and unnecessary confusion can be prevented in advance.

(Effect of tunnel disaster prevention system 2)
In addition, the present invention provides a disaster prevention system in which a fire detector installed in a tunnel and a terminal device other than the fire detector are connected to a disaster prevention receiver and monitored. An R-type transmission unit for connecting a plurality of fire detectors to the drawn transmission line and individually detecting a fire alarm by the fire detector based on predetermined transmission control with the fire detectors, and a plurality of terminal devices Is divided into one or more sections for each type, a plurality of terminal devices belonging to the same section are connected to the signal line drawn out in the tunnel in the tunnel, and any fire-related operation of the plurality of terminal devices is divided into the sections. When it is determined that a P-type transmission unit to be detected and a fire-related operation detected by the P-type transmission unit are detected, a predetermined alarm control or facility control is performed, and the fire detection of the first fire detector by the R-type transmission unit Detection or by P-type transmitter When it is determined that a fire-related operation has been detected in a section, a predetermined preliminary alarm control is performed, the fire detection of two fire detectors by the R-type transmission unit, or the first fire by the R-type transmission unit The above-mentioned tunnel is provided with a control unit that performs predetermined fire alarm control when both the detection of the fire alarm of the detector and the detection of the fire-related operation of one section by the P-type transmission unit are determined. In addition to the same effect as disaster prevention system 1, in addition to the detection of the fire alarm of the first fire detector, when a fire-related operation by a terminal device other than the fire detector is detected, a preliminary alarm is given, so that the tunnel When a fire occurs due to an accident in the house, if a user performs a report operation or a fire extinguishing operation, a preliminary alarm is issued to call attention, and to be prepared for the predicted fire alarm (this alarm), to determine the fire When this alarm is issued An essential coping and quickly and properly possible.

(Effect of using terminal device as transmitter)
In addition, the terminal device other than the fire detector is a transmitter, and the P-type transmission unit divides a plurality of transmitters into one or a plurality of sections, and a plurality of signal lines belonging to the same section in a signal line drawn out in units of sections in the tunnel. Connected to the transmitter, and detects fire reports based on the operation of any of the multiple transmitters in units of sections, and the control unit detects the fire report of the first fire detector by the R-type transmission unit or Predetermined preliminary alarm control is performed when it is determined that one section of fire report is detected by the P-type transmission unit, the detection of fire alarms of two fire detectors by the R-type transmission unit, or 1 by the R-type transmission unit When the transmitter is operated because predetermined fire alarm control is performed when both the detection of the fire alarm of the first fire detector and the detection of the fire notification of one section by the P-type transmission unit are determined. The alarm is also called as a preliminary warning. Operation of fire alert and transmitter of the fire detector also makes it possible to alarm treated as fire.

(Effects when the terminal device is used as a pump activation operation means)
The terminal equipment other than the fire detector is a pump activation operation means, and the P-type transmission unit divides a plurality of pump activation operation means into one or a plurality of sections, and is the same as the signal line drawn out in the unit of section in the tunnel. A plurality of pump activation operation means belonging to the section are connected, and any pump activation operation of the plurality of pump activation operation means is detected in the unit of the section, and the control unit is connected to the first fire detector by the R-type transmission unit. Predetermined preliminary alarm control is performed when it is determined that a fire alarm has been detected or a P-type transmission unit has detected a pump start operation for one section, and the fire alarms of two fire detectors have been detected by the R-type transmission unit. Or, when both the detection of the fire alarm of the first fire detector by the R-type transmission unit and the detection of the pump start operation of one section by the P-type transmission unit are determined, the predetermined fire alarm control is performed. For example, the pump start operation As a stage, when a user operates a fire hydrant valve opening / closing detection switch provided in the fire hydrant device, or when a fire brigade member operates a pump start switch provided in the fire hydrant device, a warning is issued, Also, it is possible to treat the fire alarm of the first fire detector and the operation of the hydrant valve opening / closing detection switch or the pump start switch as a fire and give an alarm.

(Effects of preliminary warning and this warning by interlocking equipment)
In addition, since the control unit linkedly controls some of the plurality of linked facilities as preliminary alarm control and linked all of the plurality of linked facilities as fire alarm control, for example, the control unit As an alarm, the CCTV monitoring equipment and lighting equipment are linked and controlled to a predetermined state, and as this alarm, all equipment including the CCTV monitoring equipment, lighting equipment, ventilation equipment, alarm display board equipment and radio reproduction broadcasting equipment is put into a predetermined state. By interlocking control, for example, CCTV monitoring equipment and lighting equipment are temporarily flickered to give a preliminary alarm to call attention, and it is possible to report this alarm by interlocking control of all equipment. By using equipment interlocking, alarms in stages according to the progress of the fire, for example, management personnel and vehicles that are passing through the tunnel by means of interlocking control of equipment different from normal Attention is paid to the driver's car, etc., and in particular, the driver of the vehicle traveling in the tunnel knows the abnormality from the state of the equipment different from the normal by the interlocking control of the equipment along with the preliminary warning and this warning, and decreases the speed. It is possible to travel with caution, and the driver of the vehicle trying to enter the tunnel can take action such as noticing abnormally before entering the tunnel and making an emergency stop. And it is possible to appropriately prevent unnecessary confusion.

(Effects when terminal equipment is an automatic valve device)
In addition, the terminal equipment other than the fire detector includes an automatic valve device of a water spray facility equipped with an electric valve for operation, and the P-type transmission unit divides a plurality of automatic valve devices into one or a plurality of sections, and The motor-operated valve for operating the automatic valve device belonging to the same section is connected to the signal line drawn out in the section unit, and the control unit is connected to the automatic valve device in the predetermined section by the signal line based on the establishment of the activation condition of the water spray equipment. Since the open control signal is sent to the provided motor operated valve, and the water for fire extinguishing is sprinkled by the opening operation of the automatic valve device by the open control of the motor operated valve, the relationship between the automatic valve device and the disaster prevention receiver is P-type By adopting the configuration of the direct delivery system, the configuration can be simplified and the cost can be reduced.

Explanatory diagram showing an overview of the tunnel disaster prevention system Block diagram showing the outline of the functional configuration of the tunnel disaster prevention system Block diagram showing details of P-type transmission unit Flow chart showing monitoring control by disaster prevention reception board

[Outline of tunnel disaster prevention system]
FIG. 1 is an explanatory diagram showing an outline of a tunnel disaster prevention system. As shown in FIG. 1, an up-line tunnel 1 a and a down-line tunnel 1 b are constructed as tunnels for an automobile exclusive road, and the up-line tunnel 1 a and the down-line tunnel 1 b are connected by an evacuation connection pit 2.

  Fire detectors 16 are installed inside the upstream tunnel 1a and the downstream tunnel 1b, for example, at intervals of 50 meters along the walls in the longitudinal direction of the tunnel. The fire detector 16 sets monitoring areas on both sides that are 50 meters on the left and right sides, detects a flame due to a fire, and issues a fire. The fire detector 16 has a unique address corresponding to the R-type transmission type.

  In addition, fire hydrant devices 20 and automatic valve devices 22 are installed at intervals of, for example, 50 meters along the wall surface of the supervisor passage in the longitudinal direction of the tunnel inside the upstream tunnel 1a and the downstream tunnel 1b.

  The fire hydrant device 20 houses a hose with a nozzle inside the fire hydrant door. In the event of a fire, the fire hydrant door is opened, the hose with the nozzle is pulled out, and the fire hydrant valve opening / closing lever is opened to discharge the water for fire extinguishing. Switch on and start fire pump. Moreover, the fire hydrant device 20 is provided with a fire extinguisher door, in which the fire extinguisher is housed. Further, the fire hydrant device 20 is provided with a water hydrant used by the fire brigade, and is provided with a pump start switch operated by the fire brigade. Further, the fire hydrant device 20 is provided with a notification device door, and the notification device door is provided with a transmitter. For this reason, the fire hydrant device 20 includes a transmitter, a fire hydrant valve opening / closing detection switch, and a pump start switch as terminal devices.

  In addition, since the fire hydrant valve opening / closing detection switch and the pump start switch are the same switch in terms of system that outputs the same pump start signal, the following description will be given as a fire hydrant valve opening / closing detection switch (including a pump start switch). There is.

  The automatic valve device 22 constitutes a water spray facility. The main valve is driven to open by remote opening control of the motor-operated valve for operation, and water for fire extinguishing is discharged from a plurality of water spray heads installed in the longitudinal direction of the upper part of the tunnel wall surface. To protect the tunnel housing from fire. For this reason, the automatic valve device 22 includes a motor-operated valve for operation as a terminal device.

  In order to monitor abnormalities in the tunnel by connecting terminal devices such as the fire detector 16, fire hydrant device 20, and automatic valve device 22 installed in the tunnel, a disaster prevention receiving board 10 is installed in a monitoring center or the like. Yes.

  An R-type transmission line 12 is pulled out from the disaster prevention receiving board 10 into the upstream tunnel 1a and the downstream tunnel 1b, and a fire detector 16 installed in the tunnel is connected. In addition, a relay amplifier board 18 is provided in the middle of the R-type transmission line 12, and is installed far away to relay and amplify signals transmitted to and received from the fire detector 16. The R-type transmission line 12 includes, for example, a power supply line, a common line, a downstream signal line that transmits a signal to the terminal side in a voltage mode, and an upstream signal line that transmits a signal back from the terminal in a current mode.

  Further, the P-type transmission line 14 for n lines is drawn out from the disaster prevention receiving board 10 in the upstream tunnel 1a and the downstream tunnel 1b. The P-type signal line 14 is divided into a section obtained by dividing the inside of the tunnel in the longitudinal direction and a type of terminal device, and a plurality of dedicated signal lines are drawn out. As this terminal device, there are a transmitter provided in the fire hydrant device 20, a fire hydrant valve opening / closing detection switch (including a pump start switch), an operating electric valve and a pressure switch provided in the automatic valve device 22, a transmitter, P-type signal line 14 is pulled out for each type of fire hydrant valve open / close detection switch (including pump start switch), motor operated valve and pressure switch, and further divided into sections divided in the longitudinal direction of the tunnel for each type. A corresponding terminal device is connected by pulling out the P-type signal line 14.

  Here, one automatic valve device 22 is provided for each section, and for this reason, the P-type signal line 14 is pulled out and connected to the operating motor valve provided in the automatic valve device 22 for each pressure switch.

  The P-type signal line 14 is composed of a signal line and a common line, and when a transmitter, a fire hydrant valve open / close detection switch, and a pump start switch are connected, a fire notification signal or A switch-on signal is sent to the disaster prevention receiving board 10. In the case of the motor operated valve provided in the automatic valve device 22, the motor operated valve is opened by applying a drive voltage as an open control signal from the disaster prevention receiving board 10 via the P-type signal line 14. I try to let them.

  In addition to fire detector 16, fire hydrant device 20 and automatic valve device 22, emergency facilities for tunnels include fire pump facility 24, IG slave station facility 26, ventilation facility 28, alarm display panel facility 30, radio rebroadcast facility. 32, CCTV monitoring equipment 34, lighting equipment 36, etc., except that the IG slave station equipment 26 is connected by a data transmission line, other equipment is individually connected to the disaster prevention receiver 10 by the P-type signal line 14. Connected. The fire pump 24 may be R-type transmission.

  Here, the IG slave station facility 26 is a communication facility that connects the disaster prevention receiving board 10 and other facilities to the remote management facility. The ventilation facility 28 is a facility that energizes the air in the tunnel with a high blown air speed by the operation of a jet fan installed on the ceiling side in the tunnel, and causes a flow of arousal in the longitudinal direction of the tunnel.

  The alarm display board facility 30 is a facility for informing the user in the tunnel of the abnormality in the tunnel by displaying it on the electric display board. The radio rebroadcasting facility 32 is a facility that enables a driver or the like to receive information from a road manager in the tunnel. The CCTV monitoring facility 34 is a facility for checking the scale and position of the fire, grasping the situation in the tunnel when the water spray facility is operated, and evacuation guidance is performed. The lighting equipment 36 is equipment for driving and managing lighting equipment in the tunnel.

[Configuration of disaster prevention receiver]
FIG. 2 is a block diagram showing an outline of the functional configuration of the tunnel disaster prevention system. As shown in FIG. 2, the disaster prevention receiving board 10 includes a control unit 40, and the control unit 40 is a function realized by executing a program, for example, and includes a CPU, a memory, various input / output ports and the like as hardware. Use computer circuit etc.

  For the control unit 40, two R-type transmission units 42 and P-type transmission units 44 corresponding to the upstream tunnel 1a and the downstream tunnel 1b are provided, and a speaker, a buzzer, and an alarm display are provided to the control unit 40. An alarm unit 45 provided with a light, a display unit 46 provided with a liquid crystal display, etc., an operation unit 48 provided with various switches, a modem 50 for connecting the IG slave station equipment 26, a ventilation equipment 28, an alarm display board A P-type transmission unit 52 in which the facility 30, the radio rebroadcasting facility 32, the CCTV monitoring facility 34, the lighting facility 36, and the fire pump facility 24 are individually connected by the P-type signal line 14 is provided. The fire pump 24 may be connected to the R-type transmission unit by an R-type transmission line.

  The R-type transmission unit 42 performs R-type transmission control by executing a program by the CPU, and individually detects the fire alarm of the fire detector 16. The transmission control by the R-type transmission unit 42 transmits a polling command signal in which addresses of the fire detectors 16 connected to the R-type transmission line 12 are sequentially specified at predetermined intervals, and the response signal of the fire detector 16 is transmitted. A state is detected.

  When the fire detector 16 issues a fire based on the flame detection, it transmits an interrupt signal to the R-type transmission line 12. Therefore, when the R-type transmission unit 42 detects the interrupt signal from the fire detector 16 that has issued the fire, A detector that has triggered a fire is identified by transmitting a group search command signal to identify the group that has fired, and then transmitting an in-group search command signal to retrieve the address of the fire detector 16 that has fired. 16 is specified.

[P-type transmission unit]
The P-type transmission unit 44 has a functional configuration extracted and shown in FIG. As shown in FIG. 3, the P-type transmission unit 44 is provided with a plurality of partition modules 62 corresponding to the sections of the terminal equipment installed in the tunnel. For example, the tunnel corresponding to the first partition module 62 is provided. A predetermined number of fire hydrant devices 20 and automatic valve devices 22 shown on the right side are connected to the inner compartment.

  The fire hydrant device 20 is provided with a transmitter 54, a hydrant valve opening / closing detection switch 56, and a pump start switch 58 as detection terminal devices, and the automatic valve device 22 has a motor operated valve 60 for operation as a drive terminal device. Provided.

  The division module 62 is provided with a receiving circuit 64 corresponding to the transmitter 54 as a circuit corresponding to the type of terminal device, and a receiving circuit 66 corresponding to the fire hydrant valve opening / closing detection switch 56 and the pump activation switch 58, A transmission circuit 68 is provided corresponding to the motor operated valve 60.

  A plurality of transmitters 54 provided in the plurality of fire hydrant devices 20 are connected in parallel to the P-type signal line 14 drawn from the receiving circuit 64 as terminal devices belonging to the same section and of the same type. For this reason, when the switch is turned on by operating one of the push buttons of a plurality of transmitters 54 belonging to the same section, the line current flows, whereby the receiving circuit 64 receives the fire report signal, and the fire report detection signal specifying the section Is output.

  Further, the P-type signal line 14 drawn out from the receiving circuit 66 belongs to the same section and has the same type of terminal equipment, and each of a plurality of fire hydrant valve opening / closing detection switches 56 and pump activation switches 58 provided in the plurality of fire hydrant devices 20. Are connected in parallel. Here, the fire hydrant valve opening / closing detection switch 56 and the pump start switch 58 output a pump start signal based on an operation related to a fire and are the same type because they are common as a pump start operation means. Therefore, the same type of terminal device is connected in parallel to the same P-type signal line 14.

  Therefore, when the user pulls out the hose with a nozzle of the fire hydrant device 20 and operates the fire hydrant valve opening / closing lever, the fire hydrant valve opening / closing detection switch 56 is turned on and the line current flows, whereby the receiving circuit 66 receives the pump start signal. Then, a pump activation detection signal specifying the section is output. Also, when the fire brigade opens the fire hydrant device 20 door, connects the fire hose to the water tap, and turns on the pump start switch 58, the receiving circuit 66 receives the pump start signal because the line current flows. The pump activation detection signal specifying the section is output.

  Furthermore, the P-type signal line 14 drawn out from the transmission circuit 68 is connected to the motor operated valve 60 provided in one automatic valve device 22 in one section, and a fire alarm is output from the disaster prevention receiving board 10. The transmission circuit 68 that receives the opening control instruction based on the establishment of the starting condition by the water discharge starting operation or the like designating the water spray facility section by the person in charge in the case applies the driving voltage to the P-type signal line 14 to thereby open the control signal. Is transmitted, and the motor-operated valve 60 for operating the automatic valve device 22 is controlled to open so that the main valve is opened and water for fire extinguishing is discharged from the water spray head into the tunnel.

  In addition, the transmission circuit 68 that has received the closing control instruction from the disaster prevention receiving board 10 applies a driving voltage with the polarity reversed to the P-type signal line 14 to transmit a closing control signal, and the motor-operated valve 60 for operating the automatic valve device 22. By closing control, the main valve is driven to close, and the fire-fighting water that has been discharged into the tunnel from the water spray head is stopped.

  The automatic valve device 22 is provided with a pressure switch, which is connected to a P-type signal line drawn from a receiving circuit provided in the partition module 62, but is not shown.

[Monitoring control by disaster prevention reception board]
The control unit 40 of the disaster prevention receiving board 10 shown in FIG. 2 performs a fire alarm by a fire detector 16 provided as a terminal device, a fire alarm by a transmitter 54, a pump start by a fire hydrant valve opening / closing detection switch 58 or a pump start switch 60. Based on the detection, monitoring control with the following equipment linkage control is performed.

(Preliminary alarm control)
The control unit 40 of the disaster prevention receiving board 10 discriminates the detection of the fire alarm of the first fire detector 16 by the R-type transmission unit 42 or the detection of the fire notification of one section or the pump activation by the P-type transmission unit 44. In this case, the alarm unit 45 is instructed to output a preliminary fire alarm (fire pre-alarm) using a voice or buzzer and a display alarm by instructing the alarm unit 45. Preliminary alarm control is performed in conjunction with some of the facilities inside.

  As the preliminary alarm control based on the facility interlocking, the control unit 40 performs control for interlocking the CCTV monitoring facility 34 and the lighting facility 36 to a predetermined state, for example. Interlocking control of the CCTV monitoring facility 34 as a preliminary alarm calls attention, for example, by displaying an alarm character on the monitor screen or blinking the monitor screen. In addition, the interlock control of the lighting equipment 36 as a preliminary alarm alerts the flicker lighting that blinks the lighting equipment installed in the tunnel.

(Fire alarm control)
The control unit 40 of the disaster prevention receiving board 10 outputs a fire alarm by treating it as a fire when determining any of the following after performing the preliminary alarm control, and performs a fire alarm control that links all the facilities. Do.
(1) Detection of fire alarms of the two fire detectors 16 by the R-type transmission unit 42 (2) Detection of fire alarms of the first fire detector 16 by the R-type transmission unit 42 and the P-type transmission unit 44. Detection of fire notification of one section by 44 (3) Detection of fire alarm of first fire detector 16 by R-type transmission unit 42 and detection of pump activation of one section by P-type transmission unit 44

  In this case, the control unit 40 instructs the alarm unit 45 to output an alarm by a voice or buzzer and a fire alarm by a display alarm, and as a fire alarm by interlocking with the equipment, the ventilation facility 28, the alarm display board facility 30, the radio The re-broadcasting facility 32, the CCTV monitoring facility 34, and the lighting facility 36 are controlled in conjunction with each other, and an abnormality has occurred in the tunnel, so that the driver of the vehicle traveling in the tunnel or entering the tunnel It informs the driver of the existing vehicle and makes possible measures such as slow driving and emergency stop.

[Monitoring control of tunnel disaster prevention system]
FIG. 4 is a flowchart showing the monitoring control by the disaster prevention reception board, which will be described below with reference to FIGS.

  As shown in FIG. 4, the control unit 40 of the disaster prevention receiving board 10 discriminates the detection of the fire alarm of the first fire detector 16 by the R-type transmission unit 42 in step S <b> 1 (hereinafter “step” is omitted). Then, it progresses to S2 and a fire preliminary alarm is output from the alarm unit 45, and then, in S3, the CCTV monitoring equipment 34 and the lighting equipment 36 which are part of the equipment are linked to a predetermined state via the P-type transmission unit 52. Control to call attention by the preliminary warning to be performed.

  Next, when the control unit 40 determines in S4 that the R-type transmission unit 42 has detected the fire alarm of the other fire detector 16, it determines that the fire alarms of the two fire detectors 16 have been detected, and the process proceeds to S5. In step S6, the alarm unit 45 is instructed to output a fire alarm, and then in S6, this alarm is performed by interlocking control of all facilities. Thereafter, when the fire is extinguished and recovery is determined in S7, the disaster prevention receiving board 10 is recovered and the process is terminated.

  On the other hand, when no fire alarm is detected by another fire detector 16 at S4, the control unit 40 loops the processing of S8 and S9, and at S8, the P-type transmission unit 44 operates the transmitter 54. If it is determined that a fire report has been detected, the process proceeds to S5, where the alarm unit 45 is instructed to output a fire alarm, and then in S6, this alarm is performed by interlocking control of all facilities.

  Further, when the control unit 40 determines in S9 that the P-type transmission unit 44 has detected the start of the pump by operating the fire hydrant valve opening / closing detection switch 56 or the pump start switch 58, the control unit 40 proceeds to S5 and instructs the alarm unit 45 to issue a fire alarm. Next, in S6, this alarm is performed by interlocking control of all facilities. In addition, when the control part 40 discriminate | determines the detection of a pump starting by S9, the control part 40 will instruct | indicate the P-type transmission part 52, will output a pump starting signal to a fire extinguishing pump installation, and will start the operation | movement of a fire pump.

  If the control unit 40 does not determine the detection of the fire alarm of the other fire detector 16 by the R-type transmission unit 42 in S1, the control unit 40 proceeds to S10, and the fire notification is generated by the operation of the transmitter 54 by the P-type transmission unit 44. If it is determined that it is detected, the process proceeds to S11, and a fire preliminary alarm is output from the alarm unit 45 in the same manner as in S2. Then, the process proceeds to S12 and, as in S3, becomes part of the equipment via the P-type transmission unit 52. Control is performed to alert the CCTV monitoring equipment 34 and the lighting equipment 36 by a preliminary alarm that links the CCTV monitoring equipment 34 and the lighting equipment 36 to a predetermined state.

  Next, when the control unit 40 determines in S13 that the R-type transmission unit 42 has detected the fire alarm of another fire detector 16, the fire alarm by the transmitter 54 and the fire alarm of the first fire detector 16 are detected. Since both are detected, the process proceeds to S5 to instruct the alarm unit 45 to output a fire alarm, and then in S6, this alarm is performed by interlocking control of all facilities.

  If the control unit 40 does not determine whether the P-type transmission unit 44 has detected the fire report of the transmitter 54 in S10, the control unit 40 proceeds to S14, and the P-type transmission unit 44 sets the fire hydrant valve opening / closing detection switch 56 or the pump activation switch 58. When it is determined that the operation of the pump has been activated, the activation control of the fire pump 24 is performed in S15, and the process proceeds to S12. As in S3, the CCTV monitoring facility 34, which becomes part of the facility via the P-type transmission unit 52, and Control is performed to call attention by a preliminary alarm that links the lighting equipment 36 to a predetermined state.

  Next, when the control unit 40 determines in S13 that the R-type transmission unit 42 has detected the fire alarm of the other fire detector 16, the control unit 40 detects the start of the pump by operating the fire hydrant valve opening / closing detection switch 56 or the pump start switch 58. Since both the detection of the fire alarm of the first fire detector 16 and the determination are both, the process proceeds to S5, the alarm unit 45 is instructed to output a fire alarm, and then in S6, this alarm by the interlock control of all facilities I do.

[Modification of the present invention]
(Preliminary alarm)
The above embodiment is treated as a preliminary alarm when it is determined whether a fire alarm is detected by the first fire detector, a fire alarm is detected by a transmitter in one section, or a pump activation is detected by a pump activation operation means. However, as another embodiment, it is treated as a preliminary alarm only when it is determined that a fire alarm is detected by the first fire detector. Alternatively, preliminary alarm control for interlocking control of some equipment may be performed.

(This alarm)
In the above embodiment, the detection of the fire alarm by the two fire detectors, the detection of the alarm alarm by the first fire detector and the detection of the fire alarm by the transmitter, or the detection of the pump activation by the pump starting operation means are discriminated. The fire alarm control that interlocks and controls all equipment is performed, but it is treated as a fire only when it is determined that two fire detectors detect the fire alarm. You may make it perform the fire alarm control which carries out linked control of the installation.

(Terminal equipment other than fire detectors)
In the above embodiment, the transmitter, the hydrant valve opening / closing detection switch, and the pump start switch are taken as examples of the terminal device for detecting the fire-related operation by the P-type transmission unit. For example, an emergency call reporting operation, a fire extinguisher removal, etc. may be detected as a fire-related operation.

(Other)
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.

DESCRIPTION OF SYMBOLS 1a: Uplink tunnel 1b: Downlink tunnel 10: Disaster prevention receiving board 12: R type transmission line 14: P type signal line 16: Fire detector 18: Relay amplifier board 20: Fire hydrant device 22: Automatic valve device 24: Fire pump Equipment 26: IG slave station equipment 28: Ventilation equipment 30: Warning display board equipment 32: Radio rebroadcast equipment 34: CCTV monitoring equipment 36: Lighting equipment 40: Control unit 42: R-type transmission unit 44, 52: P-type transmission unit 45: Alarm unit 46: Display unit 48: Operation unit 54: Transmitter 56: Fire hydrant valve opening / closing detection switch 58: Pump start switch 60: Motor operated valve 62: Division module 64, 66: Reception circuit 68: Transmission circuit

Claims (8)

In a tunnel disaster prevention system that monitors and connects a fire detector installed in a tunnel and a terminal device other than the fire detector to a disaster prevention reception board,
In the disaster prevention reception board,
An R-type transmission unit that connects the plurality of fire detectors to a transmission line drawn into a tunnel, and individually detects fire alarms by the fire detectors based on predetermined transmission control with the fire detectors When,
The plurality of terminal devices are divided into one or a plurality of sections for each type, and the plurality of terminal devices belonging to the same section are connected to a signal line drawn in the section unit in a tunnel, and any one of the plurality of terminal devices P-type transmission unit that detects fire-related operations in units of sections,
When it is determined that a fire-related operation has been detected by the P-type transmission unit, a predetermined alarm control or facility control is performed, and the detection of the fire alarm of the first fire detector by the R-type transmission unit is determined. A control unit for performing a predetermined fire alarm control when performing a predetermined preliminary alarm control and determining the detection of the fire alarm of the second fire detector by the R-type transmission unit;
A tunnel disaster prevention system characterized by
In a tunnel disaster prevention system that monitors and connects a fire detector installed in a tunnel and a terminal device other than the fire detector to a disaster prevention reception board,
In the disaster prevention reception board,
An R-type transmission unit that connects the plurality of fire detectors to a transmission line drawn into a tunnel, and individually detects fire alarms by the fire detectors based on predetermined transmission control with the fire detectors When,
The plurality of terminal devices are divided into one or a plurality of sections for each type, and the plurality of terminal devices belonging to the same section are connected to a signal line drawn in the section unit in a tunnel, and any one of the plurality of terminal devices P-type transmission unit that detects fire-related operations in units of sections,
When it is determined that a fire-related operation is detected by the P-type transmission unit, predetermined alarm control or facility control is performed, and the detection of a fire alarm of the first fire detector by the R-type transmission unit or the P-type When it is determined that a fire-related operation in one section is detected by the transmission unit, a predetermined preliminary alarm control is performed, and the detection of the fire alarm of the second fire detector by the R-type transmission unit, or the R-type transmission unit A control unit that performs predetermined fire alarm control when both the detection of the fire alarm of the first fire detector by the detector and the detection of the fire-related operation of one section by the P-type transmission unit are determined,
A tunnel disaster prevention system characterized by
In the tunnel disaster prevention system according to claim 2,
Terminal equipment other than the fire detector is a transmitter,
The P-type transmission unit divides the plurality of transmitters into one or a plurality of sections, connects the plurality of transmitters belonging to the same section to a signal line drawn in the section unit in a tunnel, and Fire notification based on any operation of the machine is detected in each unit,
The control unit performs predetermined preliminary alarm control when it is determined that the first fire detector detects the fire alarm by the R-type transmission unit or the P-type transmission unit detects the fire notification of one section. Detecting the fire alarm of the second fire detector by the R-type transmission unit, or detecting the fire alarm of the first fire detector by the R-type transmission unit and one section by the P-type transmission unit A tunnel disaster prevention system that performs predetermined fire alarm control when both fire notifications are detected.
In the tunnel disaster prevention system according to claim 2,
Terminal equipment other than the fire detector is a pump activation operation means,
The P-type transmission unit divides the plurality of pump activation operation means into one or a plurality of sections, and connects the plurality of pump activation operation means belonging to the same section to a signal line drawn in the section unit in a tunnel, Detecting a pump activation operation of any of the plurality of pump activation operation means in units of sections;
The control unit performs predetermined preliminary alarm control when it is determined that the fire detection of the first fire detector by the R-type transmission unit is detected or the pump start operation of one section is detected by the P-type transmission unit. Detection of the fire alarm of the second fire detector by the R-type transmission unit, or detection of the fire alarm of the first fire detector by the R-type transmission unit and 1 by the P-type transmission unit A tunnel disaster prevention system that performs predetermined fire alarm control when both of the detection of the pump activation operation of the section are determined.
The tunnel disaster prevention system according to any one of claims 1 to 4, wherein the control unit interlocks a part of a plurality of interlocking facilities as the preliminary alarm control, and the fire alarm control A tunnel disaster prevention system characterized by interlocking control of all interlocking facilities.
6. The tunnel disaster prevention system according to claim 5, wherein the control unit controls the CCTV monitoring equipment and the lighting equipment in conjunction with a predetermined state as the preliminary alarm control, and the CCTV monitoring equipment, A tunnel disaster prevention system characterized in that all equipment including lighting equipment, ventilation equipment, warning display board equipment and radio reproduction broadcasting equipment is controlled in conjunction with a predetermined state.
5. The tunnel disaster prevention system according to claim 4, wherein the pump activation operation means includes a fire hydrant valve opening / closing detection switch and a pump activation switch provided in a fire hydrant device.
In the tunnel disaster prevention system according to claim 1,
Terminal equipment other than the fire detector includes an automatic valve device for water spray equipment equipped with an electric valve for operation,
The P-type transmission unit divides the plurality of automatic valve devices into one or a plurality of sections, and connects a motor operated valve for the automatic valve device belonging to the same section to a signal line drawn in the section unit in a tunnel. ,
The control unit transmits an open control signal to the motor operated valve provided in the automatic valve device of a predetermined section through the signal line based on establishment of a predetermined start condition for the water spray equipment, A tunnel disaster prevention system characterized by sprinkling water for fire extinguishing by opening the automatic valve device by opening control.

Images