JP2023071831A - disaster prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disaster prevention system for monitoring abnormality of a disaster prevention terminal apparatus installed in a disaster prevention monitoring area.

SOLUTION: A disaster prevention system includes: a plurality of disaster prevention terminal apparatuses (a hydrant valve opening/closing detection switch, a manual reporting device, a fire detector, a duct inside temperature detector, an automatic valve device, etc.) that is connected to a signal line laid correspondingly to a section of a disaster prevention monitoring area divided into predetermined sections and installed in each section of the disaster prevention monitoring area to output a fire report signal via the signal line; and a disaster prevention reception board that has a monitoring control unit for receiving the fire report signal to perform predetermined control processing corresponding thereto. When receiving the fire report signal from the disaster prevention terminal apparatus via the signal line, the monitoring control unit causes area system diagrams 102a, b showing an arrangement of a prescribed disaster prevention terminal apparatus in the disaster prevention monitoring area that are displayed on a graphic panel to display the disaster prevention terminal apparatus that outputs a fire report signal distinguishably from other disaster prevention terminal apparatuses and to distinguishably display a section to which the disaster prevention terminal apparatus that has output the fire report signal belongs.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a disaster prevention system that monitors anomalies in a disaster prevention monitoring area by connecting disaster prevention terminal equipment such as reporting devices and detectors installed in the disaster prevention monitoring area to a disaster prevention receiving panel.

2. Description of the Related Art Conventionally, as a disaster prevention monitoring area, for example, an emergency facility is installed in a tunnel such as a motorway to protect people and vehicles from a fire accident that occurs in the tunnel.

As such emergency facilities, fire detectors, manual reporting devices, and emergency telephones are installed for monitoring and reporting fires, and fire hydrants are installed for extinguishing fires and preventing the spread of fire. In order to protect the inside of the duct from fires, a water spray head that sprays water for fire extinguishing is installed, and a disaster prevention receiver panel that monitors and controls the terminal equipment of these emergency facilities is installed to construct a tunnel disaster prevention system. are doing.

Tunnel disaster prevention systems, which consist of disaster prevention receivers and terminal devices, are roughly divided into R-type transmission systems and P-type direct transmission systems. In the R-type transmission system, terminal equipment such as a fire detector with an address set is connected to the transmission line, and transmission control enables individual management in which detection and control are performed for each terminal equipment. In the P-type direct transmission system, terminal equipment is divided into predetermined division units according to the type of terminal equipment, and a plurality of terminal equipment belonging to the same division are connected to signal lines drawn out for each division unit, and detection and control are performed for each signal line unit.

By the way, in the P-type direct transmission type tunnel disaster prevention system, terminal devices such as a manual reporting device, a fire hydrant activation device, a duct temperature detector, etc. are configured as non-voltage a-contact switches for signal output by operation or detection, A non-voltage a-contact switch is connected to the signal line drawn from the disaster prevention receiving panel. The no-voltage a-contact switch is normally off in a monitoring state, and is turned on by an operation or detection operation to output a no-voltage contact signal.

Specifically, the power supply voltage is applied to one of the signal lines through a pull-up resistor in the line receiving section provided on the disaster prevention receiving panel, and in the steady monitoring state in which the no-voltage a-contact switch is turned off, the signal line Almost no current consumption flows through the receiver, and the power supply voltage between the signal lines seen from the disaster prevention receiver panel is maintained at approximately the power supply voltage. When the non-voltage a-contact switch is turned on, current flows through the signal line, the voltage between the signal lines seen from the disaster prevention receiver panel drops to approximately zero volts, and the line receiving part of the disaster prevention receiver panel increases the current consumption of the signal line or A voltage drop between signal lines is detected, and a received signal indicating operation or detection of the terminal device is output to the control unit.

For example, if it is a fire signal from a manual notification device, the disaster prevention receiver panel performs control operations such as fire display, lighting control of the response lamp on the terminal side, manual notification section display, remote monitoring control equipment, TV monitoring equipment, variable A fire notification signal is transmitted to external equipment such as road information board equipment, tunnel ventilation equipment, lighting equipment, etc., to perform predetermined coping control.

In addition, if the fire hydrant activation signal is from a fire hydrant activation device such as a fire hydrant valve open/close detection switch installed in the fire hydrant system, the disaster prevention receiver panel sends a pump activation signal to the fire pump equipment to remotely activate the fire pump equipment. I am trying to get it running.

JP-A-2002-246962 JP-A-11-128381 JP-A-50-010097 Korean Patent No. 10-1527371 JP 2002-063664 A

In such a conventional P-type direct transmission type tunnel disaster prevention system, deterioration of the signal line (outside cable) that connects the terminal equipment progresses due to deterioration over time, and the signal line that connects the terminal equipment deteriorates. A current higher than that expected in the normal monitoring state flows, and the disaster prevention receiver determines that the signal is received by the operation of the terminal device or the detection operation, and performs an alarm operation, remote monitoring control equipment, television monitoring equipment, variable road Interlocking other equipment such as information board equipment, tunnel ventilation equipment, lighting equipment, etc., often causes tunnels to be closed to traffic.

In order to solve this problem, a current monitoring device is installed in a separate housing from the disaster prevention receiver panel, and the current flowing through the signal line connected to the terminal equipment equipped with the non-voltage a-contact switch is controlled, for example, once a day. In addition, when the measured current deviates from a predetermined threshold range, an abnormality in the current value of the signal line is judged and an alarm is given.

By the way, in the conventional disaster prevention receiving panel, a graphic panel with a tunnel system diagram is arranged on the front surface of the panel. In the tunnel system diagram of the graphic panel, for example, fire hydrants installed in the longitudinal direction of the tunnel are displayed in an array of rectangular symbols, and multiple division indicator lights correspond to divisions divided in the longitudinal direction of the tunnel, and manual notification devices. Arranged separately for hydrant activation devices.

For example, when the disaster prevention receiver receives a fire signal from a manual notification device installed in a fire hydrant device and outputs a fire alarm, it lights the section indicator lamp of the section symbol corresponding to the signal line that received the fire signal, and the manual report is issued. It is possible to identify the parcels that have been performed.

However, in the conventional P-type direct transmission type tunnel disaster prevention system, terminal equipment is divided into predetermined division units according to the type of terminal equipment, and a plurality of terminal equipment belonging to the same division are connected to the signal line drawn out for each division. Since the detection and control are performed for each signal line, even if the section where the manual notification was made can be identified by the lighting of the section indicator light, the fire hydrant system where the manual notification was made is unknown. I have a problem I don't understand.

In order to solve this problem, instead of using the P-type direct transmission system, it would be better to use an R-type transmission system that allows the address of the terminal device to be known. In the P-type direct delivery system, it is desirable to be able to identify and display activated terminal devices in the compartment in addition to the compartment display.

In addition, since the current monitoring device is installed in a separate housing from the disaster prevention receiver panel in the past, the transmission function and processing function to send fire information, failure information, etc. from the disaster prevention receiver panel to the current measurement device and store it together with the measurement history is required, and there is also a problem that the equipment configuration and treatment become complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disaster prevention system of a P-type direct delivery system that can identify an activated disaster prevention terminal device from among a plurality of disaster prevention terminal devices connected to a signal line.

(Disaster prevention system)
The present invention
Predetermined disaster prevention devices are connected to a plurality of signal lines laid corresponding to the sections of the disaster prevention monitoring area divided into predetermined sections, are arranged in each of the sections of the disaster prevention monitoring area, and output signals via the signal lines. a terminal device;
a monitoring control unit that receives a signal from a disaster prevention terminal device via a signal line and performs predetermined control processing according to the received signal;
A disaster prevention system comprising
When the monitoring control unit receives a signal from a disaster prevention terminal device via a signal line, the disaster prevention terminal device that outputs the signal is displayed on the display unit and displayed on the area system diagram showing the arrangement of the disaster prevention terminal device in the disaster prevention monitoring area. is displayed so as to be identifiable from other disaster prevention terminal devices, and the section to which the disaster prevention terminal device that output the signal belongs is displayed so as to be identifiable.

(Identification display of multiple types of disaster prevention terminal equipment)
The predetermined disaster prevention terminal equipment is a plurality of types of disaster prevention terminal equipment,
The supervisory control unit
When the disaster prevention terminal equipment that outputs the signal is to be displayed in the area system diagram in an identifiable manner, regardless of the type of the disaster prevention terminal equipment in the area system diagram, it is displayed in an identifiable manner by a common part,
When the section to which the disaster prevention terminal device that outputs the signal belongs is displayed in the area system diagram so as to be identifiable, it is displayed so as to be identifiable by the individual location according to the type of the disaster prevention terminal device in the area system diagram.

(basic effect)
The present invention is connected to a plurality of signal lines laid corresponding to the sections of the disaster prevention monitoring area divided into predetermined sections, arranged in each of the sections of the disaster prevention monitoring area, and outputs a signal via the signal line. A disaster prevention system comprising a predetermined disaster prevention terminal device and a monitoring control unit that receives a signal from the disaster prevention terminal device via a signal line and performs predetermined control processing according to the received signal, When a control unit receives a signal from a disaster prevention terminal device via a signal line, the control unit outputs the signal to an area system diagram that is displayed on the display unit and shows the arrangement of the disaster prevention terminal device in the disaster prevention monitoring area. Since the device is displayed so as to be identifiable from the other disaster prevention terminal devices and the section to which the disaster prevention terminal device that output the signal belongs is displayed so as to be identifiable, the disaster prevention terminal device that output the signal is displayed together with the section where the disaster prevention terminal device is arranged. Simple and easy to identify.

(Effect of identification display of multiple types of disaster prevention terminal equipment)
In addition, the predetermined disaster prevention terminal equipment is a plurality of types of disaster prevention terminal equipment, and the monitoring control unit displays the disaster prevention terminal equipment that has output the signal in the area system diagram so that it can be identified. In the case of identifiable display by a common part regardless of the type of disaster prevention terminal equipment, and identifiable display of the section to which the disaster prevention terminal equipment that output the signal belongs to the area system diagram, the disaster prevention terminal in the area system diagram Since the display is made identifiable by individual parts according to the type of equipment, even when there are a plurality of types of disaster prevention terminal equipment, it is possible to simply and easily identify them while simplifying the display mode.

Explanatory diagram showing the outline of the tunnel disaster prevention system Explanatory diagram showing the appearance of the disaster prevention receiver Explanatory diagram showing the state where the monitor device can be seen when the panel door of the disaster prevention receiver is opened Explanatory drawing showing the graphic panel taken out from FIG. Block diagram showing the outline of the functional configuration of the tunnel disaster prevention system Circuit block diagram showing the circuit configuration of the manual notification device connected to the signal line Explanatory diagram showing the setting of the threshold for identifying the current of the signal line flowing when the switch of the manual notification device of FIG. 6 is turned on Explanatory diagram showing the relationship between the fire hydrant number, the section, and the fire hydrant device identification code in the section Explanatory diagram showing the measurement record screen of the monitoring device displaying the measurement history by periodic measurement Explanatory diagram showing the measurement record filtering screen of the monitoring device displaying the measurement history extracted by setting the filtering conditions. Flowchart showing disaster prevention monitoring control using a disaster prevention receiver Explanatory drawing showing another embodiment of the disaster prevention receiver

[Overview of Tunnel Disaster Prevention System]
FIG. 1 is an explanatory diagram showing an outline of the tunnel disaster prevention system. As shown in FIG. 1, an up-line tunnel 1a and a down-line tunnel 1b are constructed as tunnels of a motorway, and the up-line tunnel 1a and the down-line tunnel 1b are connected by an evacuation connecting shaft 2. As shown in FIG.

Inside the up line tunnel 1a and the down line tunnel 1b, fire hydrant devices 18 are installed at intervals of, for example, 50 meters along the walls of the guard passages in the longitudinal direction of the tunnels.

The fire hydrant device 18 houses a hose with a nozzle inside the fire hydrant door. In the event of a fire, the fire hydrant door is opened and the hose with the nozzle is pulled out. When the fire hydrant valve open/close lever is operated to open the fire hydrant valve open/close lever, fire extinguishing water is discharged, and the fire hydrant valve open/closed detection is performed. The switch 14 is turned on, and a fire hydrant start signal is output to the disaster prevention receiving panel 10 to start the fire pump.

The fire hydrant device 18 is provided with a notification device door, and the notification device door is provided with a manual notification device (transmitter) 16 . In this way, the fire hydrant device 18 is provided with the fire hydrant valve opening/closing detection switch 14 and the manual notification device 16 as terminal devices. A notification signal (fire signal) is output.

The fire hydrant device 18 is provided with a pump activation switch used by the fire brigade, but since it is the same switch in terms of system that outputs the same fire hydrant activation signal as the fire hydrant valve open/close detection switch 14, the following will be described below. The fire hydrant valve opening/closing detection switch (including the pump start switch) 14 will be described. In addition to the fire hydrant device 18, the manual reporting device 16 is also installed in an emergency telephone box.

As tunnel emergency equipment, in addition to the fire hydrant device 18, a fire detector, an automatic valve device, an in-duct temperature detector, etc. are provided, but they are omitted from the drawing.

Fire detectors are installed at intervals of, for example, 25 meters or 50 meters along the walls in the longitudinal direction of the tunnel, and monitor areas are set on both sides of the tunnel at 25 meters or 50 meters to detect flames caused by fire and trigger fire alarms. .

The automatic valve device constitutes a water spray system, and the main valve is driven to open by remote control of the operation motor-operated valve, and fire-fighting water is sprayed from multiple water spray heads installed in the longitudinal direction on the upper part of the tunnel wall. to protect the tunnel frame from fire.

The temperature detector inside the duct is installed in the duct where the pipes and cables are laid inside the guard passage in the longitudinal direction of the tunnel. A temperature detection signal is output when the a-contact switch is turned on.

A disaster prevention receiving panel 10 is installed in the monitoring center of the up line tunnel 1a and the down line tunnel 1b. The disaster prevention receiving panel 10 has a current monitoring function for monitoring the current of the P-type signal line to which the terminal equipment is connected, in addition to the disaster prevention function for the upstream tunnel 1a and the downstream tunnel 1b.

From the disaster prevention receiving panel 10, in the up line tunnel 1a and the down line tunnel 1b, each predetermined section divided in the tunnel longitudinal direction, for example, divided into 6 sections, P-shaped signal lines 12-11 to 12-16, 12-21 to 12-26 are pulled out, and in this embodiment, four fire hydrant devices 18 form one section, and a plurality of fire hydrant valve open/close detection switches 14 and manual A signaling device 16 is connected to the same signal line.

For the duct temperature detectors installed in the duct, a P-type signal line is similarly drawn out for each section, and a plurality of duct temperature detectors provided for each section are connected. are omitted from the drawing. Further, the signal lines 12-11 to 12-26 may be referred to as the signal line 12 when there is no need to distinguish them.

The P-type signal line 12 is composed of a signal line and a common line, and is connected to a non-voltage a-contact switch provided in each of the fire hydrant valve opening/closing detection switch 14 of the fire hydrant device 18, the manual reporting device 16, and the temperature detector in the duct. In this case, by turning on the non-voltage a-contact switch by each operation or detection operation to flow the line current, the fire hydrant activation signal, fire notification signal (fire signal), and temperature detection signal are sent to the disaster prevention receiver panel 10. ing.

In addition to the fire hydrant system 18, fire detector and automatic valve system, the tunnel emergency facilities include a fire pump system 20, a duct cooling pump system 22, an IG slave station system 24, a ventilation system 28, and an alarm display board system. 30, radio rebroadcast equipment 32, television monitoring equipment 34, lighting equipment 36, etc. are provided. It is individually connected to the receiving board 10 . Here, the IG slave station equipment 24 is a communication equipment that connects the disaster prevention receiving panel 10 and a remote monitoring control equipment 26 that is an externally provided upper equipment via a network 25 .

The ventilation equipment 28 is a facility that gives energy to the air in the tunnel by means of a high blowing wind speed generated by the operation of a jet fan installed on the ceiling side of the tunnel to cause an air flow in the longitudinal direction of the tunnel.

In addition, the alarm display board facility 30 is a facility for notifying users in the tunnel of an abnormality in the tunnel by displaying it on an electric display board. The radio rebroadcast facility 32 is a facility for enabling drivers and the like to receive information from road administrators in tunnels. The television monitoring equipment 34 is equipment for checking the scale and position of the fire, operating the water spray equipment, and grasping the situation inside the tunnel when conducting evacuation guidance. The lighting equipment 36 is equipment for driving and managing the lighting equipment in the tunnel.

[Disaster prevention receiver]
2A and 2B are explanatory diagrams showing the appearance of the disaster prevention receiver panel, FIG. 2A showing the front and FIG. 2B showing the side. FIG. 3 is an explanatory diagram showing a state in which the panel door of the disaster prevention receiving panel is opened and the monitor device is viewed.

(Front panel and monitor device inside the housing)
As shown in FIG. 2, the disaster prevention receiving board 10 has a panel door 64 that can be freely opened and closed by operating a handle on the front of a box-shaped housing 62 that opens forward and backward. A back door 66 is provided which can be freely opened and closed by bundle operation.

On the front side of the panel door 64, there are arranged a graphic panel 44 in which division indicator lights and fire hydrant indicator lights are arranged in a tunnel system diagram, a display panel 55 in which a plurality of representative lights are arranged, and various operation switches and telephones. An operation panel 52 is provided.

A monitor device 46 using a liquid crystal display with a touch panel is arranged inside the housing 62 . As shown in FIG. 3, when the panel door 64 of the disaster prevention receiving panel 10 is opened, the monitor device 46 arranged on the support frame 68 appears inside the housing 62, and the current value measurement of the signal line is displayed on the screen of the monitor device 46. It is possible to display the current value measurement history including the results and determination results.

(graphic panel)
FIG. 4 is an explanatory diagram showing the graphic panel extracted from FIG. As shown in FIG. 4, a fire representative light 100 is provided in the upper central part of the graphic panel 44, and following the tunnel name under it, as a tunnel system diagram, an up line tunnel system diagram 102a and a down line tunnel system diagram 102b. is depicted.

The upstream tunnel system diagram 102a is divided into three stages: a fire hydrant placement section 104, a manual notification device placement section 106, and a fire hydrant activation device placement section . In the fire hydrant arrangement portion 104, fire hydrant indicator lights 110 are arranged as rectangular fire hydrant symbols indicating, for example, 22 fire hydrant apparatuses arranged at intervals of 50 meters in the longitudinal direction of the tunnel.

The manual reporting device arrangement unit 106 is divided into 6 compartment symbols corresponding to the P-type signal line, and each compartment symbol is marked with a compartment number of "1 to 6" (corresponding to the line number). , and a division indicator lamp 112 is provided in each division symbol. Note that the division symbols in which the line indicator lights 112 are arranged are arranged corresponding to the four fire hydrant indicator lights 110, but the last compartment symbol is the fire hydrant number or the two fire hydrant indicator lights 21 and 22. 110 are arranged.

Similarly, the fire extinguishing activation device arrangement portion 108 is also divided into six compartment symbols corresponding to the P-type signal line, and each compartment symbol is marked with a compartment number of "1 to 6". A line indicator light 114 is provided on the symbol. The fire hydrant placement unit 104, the manual notification device placement unit 106, and the fire hydrant activation device placement unit 108 are the same for the down line tunnel system diagram 102b.

A fire hydrant indicator light 110 and line indicator lights 112 and 114 provided on the graphic panel 44 are lit when a fire or fire hydrant activation is determined by receiving a signal from the corresponding signal line.

[Configuration of disaster prevention receiver]
(Overview of disaster prevention receiver)
FIG. 5 is a block diagram showing an outline of the functional configuration of the tunnel disaster prevention system. As shown in FIG. 5, the disaster prevention receiving board 10 includes a control unit 40. The control unit 40 is a function realized by, for example, executing a program. A computer circuit or the like with an output port or the like is used.

A control unit 40 is provided with a P-type transmission unit 42 that connects various terminal devices installed in the tunnel via a P-type signal line 12. The control unit 40 is provided with a graphic panel 44 and a monitor device 46. , an alarm unit 48 with a speaker, a buzzer, an alarm indicator light, etc., a display panel 50 with various indicator lights, and an operation panel 52 with various switches. A P-type transmission unit 54 is provided in which the display board equipment 30, the radio rebroadcast equipment 32, the television monitoring equipment 34, the lighting equipment 36, the fire pump equipment 20 and the cooling pump equipment 22 are individually connected by P-type signal lines. .

The P-type transmission unit 42 is provided with a line receiving unit 60 corresponding to the signal lines 12-11 to 12-16 and 12-21 to 12-26 drawn out to the upstream tunnel 1a. is provided with a current detector 61 for detecting the current flowing through the signal line.

Further, the P-type transmission unit 42 is similarly provided with a line receiving unit 60 corresponding to the signal lines 12-11 to 12-16 and 12-21 to 12-26 drawn out to the down line tunnel 1b. , the line receiving section 60 is provided with a current detecting section 61 for detecting a current flowing through the signal line.

(Configuration of manual reporting device)
FIG. 6 is a circuit block diagram showing the circuit configuration of the manual notification device connected to the signal line.

As shown in FIG. 6, for example, the signal line 12-21 drawn from the line receiving unit 60 of the disaster prevention receiving panel 10 is connected to the manual notification devices 16-1 to 16- provided in the fire hydrant devices 18-1 to 18-4. 4 switches are connected, and resistors RA, RB, RC and RD having different resistance values are connected in series to the switches of the manual notification devices 16-1 to 16-4.

In this embodiment, RA>RB>RC>RD between RA, RB, RC, and RD.
is set, and the currents flowing through the signal line 12-21 when the manual notification devices 16-1 to 16-4 are switched on are IA, IB, IC, and ID.
IA<IB<IC<ID
relationship is obtained.

A terminating resistor R0 is connected to the terminal end of the signal line 12-21 to flow a disconnection monitoring current I0, and the resistance values are R0>RA>RB>RC>RD.
Therefore, the current value is I0<IA<IB<IC<ID
relationship is obtained.

FIG. 7 is an explanatory diagram showing the setting of the threshold value for identifying the current flowing in the signal line when the manual notification device of FIG. 6 is turned on.

As shown in FIG. 7, the currents IA, IB, IC, and ID flowing through the signal line 12-21 when the manual notification devices 16-1 to 16-4 are turned on are defined as current threshold values Ith1, Ith1, and Ith1, respectively. If Ith2, Ith3, Ith4, and Ith5 are set as shown in the figure, and the identification codes of the manual notification devices 16-1 to 16-4 are A, B, C, and D, the current value flowing through the signal line 12-21 is By measuring, disconnection, monitoring, switch-on of manual notification device 16-1 with identification code A, switch-on of manual notification device 16-12 with identification code B, switch-on of manual notification device 16-3 with identification code C , and the switch-on of the manual notification device 16-4 with the identification code D can be discriminated.

FIG. 8 is an explanatory diagram showing the relationship between fire hydrant numbers, divisions, and fire hydrant device identification codes within divisions. For example, by receiving the fire notification signal from the manual notification device 16-1 connected to the signal line 12-21 in FIG. 6, the block number 1 corresponding to the first block is identified, and the signal line 12- The identification code A is identified by measuring the current value IA flowing through 21, and by such a combination of (section number 1, identification code A), 22 fire hydrant devices arranged in the tunnel from the relationship shown in FIG. 18, it can be identified that the fire reporting operation was performed at the fire hydrant device with fire hydrant number 1.

This point is the same for the other automatic notification devices 16 connected to the signal lines 12-12 to 12-26, and the fire hydrant valve open/close detection switches 14 connected to the signal lines 12-11 to 12-16. .

Specifically, in the memory provided in the control unit 40 of the disaster prevention receiving panel 10, based on the relationship shown in FIG. there is

The control unit 40 is provided with functions of a monitoring control unit 56 and a current monitoring unit 58 as functions realized by executing a program.

(monitoring control part)
The monitoring control unit 56 detects from terminal devices such as the fire hydrant valve opening/closing detection switch 14 provided in the fire hydrant device 18 installed in the tunnel, the manual reporting device 16, the fire detector, the temperature detector in the duct, and the automatic valve device. Predetermined monitoring control is performed based on the signals and operation signals.

In addition, when the monitoring control unit 56 receives a fire notification signal (fire signal) by operating the manual notification device 16 provided in the fire hydrant device 18 via the line receiving unit 60, the alarm unit 48 causes the main sound to ring. At the same time, the fire representative light 100 of the graphic panel 44 shown in FIG. 112 is turned on to display the manual reporting section, and a response signal is transmitted to the fire hydrant device 18 to turn on the response lamp.

In addition, following the reception of the fire notification signal, the monitoring control unit 56 receives a fire hydrant activation signal via the line receiving unit 60 by turning on the fire hydrant valve open/close detection switch 14 associated with the operation of the fire hydrant valve opening/closing lever provided in the fire hydrant device. 4, the line indicator lamp 114 of the fire hydrant activation device placement unit 108 corresponding to the signal line that received the fire hydrant activation signal of the graphic panel 44 shown in FIG. 4 is lit to display the fire hydrant activation area. A start signal is sent to the fire pump equipment 20 to start the fire pump.

Furthermore, the monitoring control unit 56 controls other equipment based on the reception of the fire notification signal by transmitting a fire notification signal to the remote monitoring control equipment 26 via the IG slave station equipment 24 to give an alarm. Control to display the manual report section by, control to display the fire report of the manual report section by the alarm display board equipment 30, control to ventilate the manual report section by the ventilation equipment 28, control to illuminate the manual report section by the lighting equipment 36, etc. I do.

When the temperature inside the duct rises and a temperature detection signal is received from the duct inside temperature detector, the monitoring control unit 56 outputs a pump activation signal to the cooling pump equipment 22 and sprinkles water from the head installed inside the duct. control to cool the inside of the duct.

In addition, the monitor control unit 56 monitors disconnection failure of the signal line 12, and when detecting disconnection failure of the signal line to the manual notification device 16, the alarm unit 48 sounds the failure sound and displays the display shown in FIG. When the manual notification line disconnection light on the panel 50 is turned on, for example, in yellow, and when the disconnection failure of the signal line 12 for the fire hydrant valve open/close detection switch 14 is detected, the alarm unit 48 sounds the failure sound and the display panel shown in FIG. Control is performed so that the fire hydrant line disconnection light of 50 is turned on, for example, in yellow.

(current monitor)
The current monitoring unit 58 measures the current value of the signal line 12 connected to the terminal device equipped with the non-voltage a-contact switch including the fire hydrant valve opening/closing detection switch 14 and the manual reporting device 16, and the measured current value reaches a predetermined upper limit. When the current value is out of the threshold range determined by the value and the lower limit value, it is determined that the current value is abnormal, and control is performed to store the measurement result as a measurement history in a memory using a detachable memory card.

The measurement of the current value of the signal line 12 by the current monitoring unit 58 is performed, for example, by AD-converting the detected voltage of the current detection resistor inserted in the signal line 12 provided in the current detection unit 61 in FIG. In order to remove , an average value of current values measured for a predetermined period of time is obtained.

Here, the current value measurement by the current monitoring unit 58 includes periodic measurement, automatic measurement, and manual measurement. In the periodic measurement of the current monitoring unit 58, the current values of all the signal lines 12 are sequentially measured at predetermined intervals, for example, once a day. A value abnormality is determined, and control is performed to store the measurement result and the determination result in the memory as a measurement history.

The automatic measurement of the current value by the current monitoring unit 58 sequentially measures the current values flowing through all the signal lines 12 when the automatic measurement operation by the monitor device 46 is detected, and the measured current values deviate from the predetermined threshold range. When the current value is abnormal, control is performed to display the measurement result on the screen of the monitor device 46 .

In the manual measurement of the current value by the current monitoring unit 58, the current value flowing through the selected signal line is measured when the monitor device 46 detects a manual measurement operation including the selection of the signal line, and the measured current value reaches a predetermined value. If it is out of the threshold range of , it is determined that the current value is abnormal, and control is performed to display the measurement result on the screen of the monitor device 46 .

Further, when the current monitoring unit 58 detects that the monitor device 46 has been operated to display the measurement history, the current monitoring unit 58 controls the monitor device 46 to display the measurement history of the current values stored in the memory.

During the periodic measurement, automatic measurement, or manual measurement, the current monitoring unit 58 lights the current monitoring device measuring light in the display panel 50 shown in FIG. Alternatively, when a current value abnormality is determined by manual measurement, the manual notification current value abnormality light or the fire hydrant current value abnormality light in the display panel 50 shown in FIG.

Further, when detecting an operation to display an abnormality history by the monitor device 46, the current monitoring unit 58 extracts the measurement history in which the current value abnormality is determined from the current value measurement history stored in the memory, control to display on the screen in chronological order.

[Identification display of activated terminal based on current value measurement of signal line]
(Identification display of manual reporting device)
The monitoring control unit 56 provided in the control unit 40 of the disaster prevention receiving panel 10 of FIG. When receiving the fire notification signal output by switching on the fire notification operation of the manual notification devices 16-1 to 16-4 provided, the current monitoring unit 58 is instructed to receive the fire notification signal. When it is determined that the measured current value is within the range of the current thresholds Ith2 to Ith3 shown in FIG. It is determined that it is a fire notification signal by switching on the manual notification device 16-1 shown in FIG. 110 is turned on or flashed, and control is performed to identify and display that the fire reporting operation has been performed by the fire hydrant device 18-1.

In this way, the disaster prevention receiver 10 is provided with the manual notification device 16 which outputs the fire notification signal by measuring the current value of the signal line 12 through which the fire notification signal is received when the fire notification signal is received. The fire hydrant device 18 can be easily identified and displayed, and the position in the tunnel where the fire report was issued can be specified without going to the site to enable appropriate response.

(Effect of identification display of fire hydrant activation device)
The monitoring control unit 56 provided in the control unit 40 of the disaster prevention receiving panel 10 in FIG. When the fire hydrant valve open/close detection switch 14 is turned on by the opening operation and the fire hydrant activation signal output is received, the current monitoring unit 58 is instructed to detect the current value flowing through the signal line 12-11 from which the fire hydrant activation signal is received. When it is determined that the measured current value is within the range of the current thresholds Ith2 to Ith3 shown in FIG. It is determined that the fire hydrant indicator light 110 with the fire hydrant number 1 in the fire hydrant arrangement portion 104 in the up-line tunnel system diagram 102a of the graphic panel 44 in FIG. Perform control to identify and display that an operation has been performed.

For this reason, when the disaster prevention receiver 10 receives the fire hydrant activation signal, the fire hydrant valve opening/closing detection switch 14 that outputs the fire hydrant activation signal is provided by measuring the current value of the signal line 12 that received the fire hydrant activation signal. It is possible to easily identify and display the fire hydrant device 18 in use, to know the fire hydrant device 18 used for fire extinguishing activities without going to the site, and to appropriately grasp the situation of the fire site in the tunnel. make it possible.

(Display of measurement record screen by monitor device)
FIG. 9 is an explanatory view showing a measurement record screen of the monitor device displaying the measurement history by periodic measurement.

As shown in FIG. 9, an automatic measurement selection button 73, a manual measurement selection button 74, a measurement record selection button 75, an abnormality history selection button 76, and a line selection button 77 are arranged on the lower side of the monitor screen 70. As shown, when the measurement record selection button 75 is operated, the measurement record screen 72 shown is displayed.

On the right side of the measurement recording screen 72, a page display 78, page switching buttons 79 and 80, a file save button 81 and a memory extraction button 82 are arranged.

By operating the page switching buttons 79 and 80, the pages of the measurement history detailed information 83 can be switched. A file save button 81 instructs memory storage of the measurement results. A memory take-out button 82 is operated to take out the memory storing the current value measurement information from the disaster prevention receiving panel 10 .

The measurement history detailed information 83 displayed in the center of the measurement record screen 72 is divided into each item of line number indicated by "No", date and time, item, upper limit value/lower limit value, measured value and judgment, and is displayed for each signal line. information is listed. Here, for line number 004, the measured value is 1.25 mA, which exceeds the upper limit value of 1.00 mA, so it is determined that the current value is abnormal by displaying "NG". Since the measured values of the other line numbers are within the range of the upper limit value and the lower limit value, they are determined to be normal by the display of "OK".

The current monitoring unit 58 stores a measurement history of current values measured at a measurement cycle of once a day. By operating the measurement record selection button 75, the measurement history detailed information 83 is displayed based on the stored history information. is displayed on the screen, but even when the current value of the signal line that receives the fire notification signal or the fire hydrant activation signal is measured based on the instruction of the monitoring control unit 56 and the operated fire hydrant device is identified and displayed, the measured Current values are stored as measurement history.

Therefore, when the measurement record screen 72 is displayed as shown in FIG. 9, the measurement history of the current value measured by receiving the fire notification signal and the fire hydrant activation signal can be viewed, and the fire occurrence time and the fire hydrant activation time can be viewed. etc. can be investigated.

(Filtered display of measurement history)
When the line selection button 77 arranged on the lower side of the measurement record screen 72 in FIG. 9 is operated, the display is switched to the measurement record narrow-down screen 84 shown in FIG.

The measurement record narrowing screen 84 of FIG. is provided.

The system selection unit 85 selects from the up line and the down line. The device selection unit 86 selects from manual notification, fire hydrant, and duct. A partition selection unit 87 inputs a partition number.

In the measurement record narrowing screen 84, for example, if you want to narrow down to the measurement record of "Section 01 in the up line manual reporting device", as shown in the figure, the system selection unit 85 is set to "up line", the device selection unit 86 is set to " When "01" is set in the section selection section 87 and "01" is set in the section selection section 87, the corresponding refinement measurement record 94 is displayed.

When the release button 89 is operated in this state, the narrowing-down condition and the narrowing-down measurement record 94 are cleared. When the close button 93 is operated, the screen returns to the measurement record screen 72 of FIG.

By using such a function of the measurement record narrowing screen 84, it is possible to narrow down and display measurement records from a large number of memorized measurement records by setting narrowing conditions combining systems, devices, and sections. For example, the current value measured upon reception of the fire notification signal or the fire hydrant activation signal is displayed on the screen, making it possible to easily investigate the time when the fire started, the time when the fire hydrant was activated, and the like.

In addition to the system, the device, and the section, the period may be selected as the condition for narrowing down the measurement records.

[Disaster prevention monitoring control]
FIG. 10 is a flow chart showing the disaster prevention monitoring control by the disaster prevention receiving panel, which is the control operation of the monitoring control section 56 and the current monitoring section 58 provided in the disaster prevention receiving panel of FIG.

As shown in FIG. 10, when the current monitoring unit 58 determines in step S1 that the current value measurement cycle of once a day has been reached, the process proceeds to step S2, where the current values of all the signal lines are sequentially measured and the current value is measured. The presence or absence of a value abnormality is determined, and current value measurement control is performed to store the measurement result and the determination result in memory as a measurement history.

Subsequently, the monitor control unit 56 monitors whether or not a fire alarm signal is received in step S3, and if it determines that the fire alarm signal has been received, it proceeds to step S4 to perform fire alarm control, and then in step S5 fire alarm control. The block number where the fire alarm signal was received is identified from the signal line that received the fire notification signal.

Subsequently, the monitoring control unit 56 proceeds to step S6, instructs the current monitoring unit 58 to measure the current value of the signal line that received the fire notification signal, and based on the measured current value in step S7, the fire hydrant of the reporting source identify the number.

Subsequently, the monitoring control unit 56 proceeds to step S8 to light the line indicator lamp 112 and the fire hydrant indicator lamp 110 of the section with the fire report in the graphic panel 44 of FIG. Display the device.

Subsequently, the monitoring control unit 56 monitors the reception of the fire hydrant activation signal in step S9, and when it determines the reception of the fire hydrant activation, it proceeds to step S10 to perform fire hydrant activation control, and then in step S11, whether the fire hydrant is activated. The block number is identified from the signal line that received the fire hydrant activation signal.

Subsequently, the monitoring control unit 56 proceeds to step S12, instructs the current monitoring unit 58 to measure the current value of the signal line that received the fire hydrant activation signal, and based on the measured current value, the fire hydrant of the activation source is detected in step S13. identify the number.

Subsequently, the monitoring control unit 56 proceeds to step S14, and lights the line indicator lamp 114 and the fire hydrant indicator lamp 110 of the section where the fire hydrant was activated in the graphic panel 44 of FIG. Display the fire hydrant system.

Subsequently, the monitoring control unit 56 advances to step S15 to determine whether or not the fire has been restored. When the fire in the tunnel is extinguished and the fire restoration is determined, predetermined restoration processing is performed in step S16. Then, the process returns to step S1 to perform normal disaster prevention monitoring control.

[Disaster prevention receiver with main monitor device]
12A and 12B are explanatory diagrams showing another embodiment of the disaster prevention receiving panel, with FIG. 12(A) showing the front and FIG. 12(B) showing the side.

As shown in FIG. 12, the disaster prevention receiving board 10 of the present embodiment has a front panel door 64 provided on the front surface of a box-shaped housing 62 that is opened forward and backward so that it can be opened and closed by operating a handle. A second monitor device 96 using a liquid crystal display with a touch panel is installed in place of the graphic panel 44 provided in the embodiment 1, and an operation display section 98 is arranged therebelow.

The screen of the second monitor device 96 displays an image corresponding to the tunnel system diagram shown in FIG. 4 drawn on the graphic panel 44 of the disaster prevention receiving panel 10 of FIG. Information is displayed.

Inside the housing 64, similarly to the embodiment of FIG. 2, a monitor device 46 using a liquid crystal display with a touch panel is arranged, and the current value measurement history shown in FIGS. 9 and 10 is read and displayed. .

The disaster prevention receiving panel 10 provided with the second monitor device 96 is different in that the second monitor device 96 is provided in place of the graphic panel 44 shown in FIG. and the control functions will be the same.

For this reason, the disaster prevention receiving panel 10 provided with the second monitor device 96 receives a fire notification signal or a fire hydrant activation signal, the fire notification in the tunnel system diagram displayed on the screen of the second monitor device 96. Change the display color or flicker of the fire hydrant symbol for which the operation or fire hydrant activation operation has been determined, and change the display of the section symbol in the tunnel system diagram corresponding to the signal line on which the fire notification signal or fire hydrant activation signal has been received. By making it flash or flicker, the operated fire hydrant system or compartment can be easily and easily identified.

In addition, by viewing the measurement history of the current value measured to monitor the insulation deterioration of the signal line on the screen of the monitor device 46, it is possible to appropriately grasp the deterioration state of the signal line. Since the measurement history of the current value measured by receiving the fire hydrant activation signal is also stored, it is possible to view the measurement history of the current value of the fire notification signal and the fire hydrant activation signal on the monitor device 46.

[Modification of the present invention]
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.

1a: Up line tunnel 1b: Down line tunnel 10: Disaster prevention receiver panel 12, 12-11 to 12-26: Signal line 14: Fire hydrant valve open/close detection switch 16: Manual reporting device 18: Fire hydrant device 20: Fire pump equipment 22: Cooling pump equipment 24: IG slave station equipment 26: Remote monitoring control equipment 28: Ventilation equipment 30: Alarm display board equipment 32: Radio rebroadcast equipment 34: TV monitoring equipment 36: Lighting equipment 40: Control units 42, 54: P type Transmission unit 44: Graphic panel 46: Monitor device 48: Alarm unit 50: Display panel 52: Operation panel 56: Monitoring control unit 58: Current monitoring unit 60: Line receiving unit 61: Current detection unit 62: Housing 64: Panel door 70: Monitor screen 72: Measurement record screen 84: Measurement record narrowing screen 96: Second monitor device 100: Fire representative light 102a: Up line tunnel system diagram 102b: Down line tunnel system diagram 104: Fire hydrant placement unit 106: Manual notification Device placement unit 108: Fire hydrant activation device placement unit 110: Fire hydrant indicator lights 112, 114: Line indicator lights

Claims (2)

A plurality of signals are connected to signal lines laid corresponding to the divisions of the disaster prevention monitoring area divided into predetermined divisions, are arranged in each of the divisions of the disaster prevention monitoring area, and output signals via the signal lines. predetermined disaster prevention terminal equipment;
a monitoring control unit that receives a signal from the disaster prevention terminal device via the signal line and performs a predetermined control process according to the received signal;
A disaster prevention system comprising
When the signal is received from the disaster prevention terminal device via the signal line, the monitoring control unit displays the signal on the area system diagram showing the arrangement of the disaster prevention terminal device in the disaster prevention monitoring area displayed on the display unit. is displayed so as to be distinguishable from other disaster prevention terminal devices, and a section to which the disaster prevention terminal device that outputted the signal belongs is displayed so as to be distinguishable.
A disaster prevention system according to claim 1,
The predetermined disaster prevention terminal equipment is a plurality of types of disaster prevention terminal equipment,
The monitoring control unit is
When the disaster prevention terminal device that outputs the signal is displayed in the area system diagram so as to be identifiable, the disaster prevention terminal device in the area system diagram is displayed so as to be identifiable by a common portion regardless of the type of the disaster prevention terminal device,
When the section to which the disaster prevention terminal device that outputs the signal belongs is displayed in the area system diagram in an identifiable manner, it is displayed in an identifiable manner in each area according to the type of the disaster prevention terminal device in the area system diagram. A disaster prevention system characterized by

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