JP3407075B2 - Tunnel disaster prevention equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disaster prevention facility for a tunnel, and more particularly to a fire hydrant device provided in the tunnel and a red indicator lamp for indicating the operating state of a pump for supplying water to the water spray fire extinguisher device.

[0002]

2. Description of the Related Art Tunnel disaster prevention equipment installed in a tunnel such as a highway or a general road includes a monitoring board called a disaster prevention board installed in a tunnel management center and the like, and a plurality of sections in the tunnel, for example, every 50 m. It is divided into a plurality of sections as a monitoring range, and is composed of a relay board provided for each monitoring range.

A relay board is provided for each section within each monitoring range in the tunnel, and a fire detector (for example, every 25 m) of flame type or dimming type, and a fire hydrant incorporating a fire hose, an emergency telephone, etc. A device (for example, every 50 m), a water spray fire extinguisher for spraying water for fire extinguishing in a long tunnel (water spray head is for example every 5 m), and a pump for supplying water to the fire hydrant device and the water spray fire extinguisher. The driving control is performed on a red indicator light (for example, every 50 m) that displays the operating state of. One pump may be provided for each monitoring range, and one pump may be responsible for a plurality of monitoring ranges.

In the disaster prevention equipment of the tunnel, signals such as fire signals and control signals are transmitted by pulse code signals between the disaster prevention panel and the relay panel, but the relay panel and each fire detector, fire hydrant device, Each of the terminals such as the water spray fire extinguisher and the red indicator lamp is separately connected by an electric line (for example, a signal line and a pair of power lines).

FIG. 4 is a block diagram showing an outline of conventional disaster prevention equipment for a tunnel. In the figure, 1 is a tunnel, 2 is a disaster prevention board, 3 is a relay board provided for each monitoring range (A to N) in the tunnel 1, 4 is a transmission line connecting the disaster prevention board 2 and each relay board 3, Reference numeral 5 is a red indicator lamp composed of a light emitting diode or the like, and 6 is an electric wire connecting the relay board 3 and each red indicator lamp 5.

A conventional tunnel disaster prevention facility is constructed as described above. For example, regarding a control system for the red indicator lamp 5, a pump (not shown) for supplying water to a fire hydrant device and a water spray fire extinguisher (not shown). The operation status of (omitted) is managed and grasped by the disaster prevention panel 2. Therefore, disaster prevention board 2
Therefore, a control command is issued to each relay board 3 according to the operating condition of the pump. For example, each monitoring range A in the tunnel 1
In N, the pump is stopped during normal operation without any abnormality, and the constant lighting command indicates that each monitoring range A
To N relay boards 3, each relay board 3 outputs a constant lighting signal to each red indicator lamp 5, and each red indicator lamp 5 is constantly lit. Then, of the plurality of monitoring ranges A to N in the tunnel 1, for example, when an abnormality such as a fire occurs in a certain monitoring range, when a pump corresponding to this monitoring range is operated, a blinking command is in operation. Is sent to the relay board 3 in the monitoring range corresponding to the pump of
From this, a blinking signal is output to each red indicator lamp 5 to cause each red indicator lamp 5 to blink.

Therefore, by looking at the blinking red indicator light 5 in the tunnel 1, the driver or the like traveling in the tunnel 1 can know that there is an abnormality such as a fire.

[0008]

In the conventional disaster prevention equipment for a tunnel as described above, when an abnormality such as a fire occurs in a certain monitoring range in the tunnel 1, a pump corresponding to each monitoring range is operated. The disaster prevention panel 2 issues a blinking command to each relay panel 3 in the monitoring range corresponding to the pump in operation, and each relay panel 3 outputs a blinking signal to each red indicator lamp 5 for each red color. The indicator light 5 is made to blink. However, since the blinking control is performed for each relay panel 3 in the tunnel 1, the blinking timing is different between the red indicator lamps 5 of different relay panels 3, so that the tunnel 1
There is a problem that the red indicator lamp 5 gives a strange feeling.

The present invention has been made to solve the above problems, and there is another red indicator lamp for indicating the operating state of a plurality of pumps provided in each of a plurality of monitoring ranges in a tunnel or shared. It is an object of the present invention to provide a tunnel disaster prevention facility that blinks in synchronization with the red indicator light in the monitoring range and when the pump is operating.

[0010]

DISCLOSURE OF THE INVENTION A tunnel disaster prevention equipment according to the present invention divides a tunnel into a plurality of monitoring ranges, and a plurality of disaster prevention devices such as fire detectors and fire hydrant devices are provided for each monitoring range. In a tunnel disaster prevention equipment including a relay panel provided for each monitoring range and for monitoring and controlling the disaster prevention equipment, and a disaster prevention panel that outputs various control commands to these relay panels, output from the disaster prevention panel A signal line for transmitting a signal to each relay board, each relay board amplifying a signal transmitted to a subsequent relay board, and a bypass circuit connected to the amplifier circuit and having a switching element,
A bypass control circuit for outputting a drive signal for turning on a switching element of the bypass circuit when the failure information of the amplifier circuit is received, and transmitting the failure information received by the bypass control circuit from the amplifier circuit to the disaster prevention panel. It is configured to do. . Also, when the disaster prevention board receives failure information from two consecutive relay boards, it outputs a control command to the relay boards after the abnormal relay board.

Further, the tunnel disaster prevention equipment according to the present invention is
The inside of the tunnel is divided into a plurality of monitoring ranges, and a plurality of fire hydrant devices and red indicator lights are provided for each monitoring range,
In a tunnel disaster prevention equipment consisting of a relay board provided for each monitoring range and drivingly controlling the red indicator light, and a disaster prevention board outputting various control commands to these relay boards, output from the disaster prevention board, A red indicator light sync signal line for transmitting a sync pulse signal for synchronizing and blinking the red indicator light to each relay board is provided, and each relay board receives an instruction to turn on the indicator light or a blinking instruction from the disaster prevention board. , A start control circuit that outputs a lighting or blinking start control signal, and each red indicator lamp that receives a synchronization pulse signal from the red indicator sync signal line when receiving a blinking start control signal from the start control circuit A red indicator control circuit that outputs a synchronized blinking drive signal, a sync signal receiving circuit that receives and outputs a sync pulse signal from the red indicator sync signal line, and a non-sync pulse signal that is generated and output A synchronizing signal generating circuit and a switching circuit for switching from a synchronizing pulse signal to a non-synchronizing pulse signal when receiving a selection signal are provided, and the relay board is controlled from the disaster prevention board when a failure or a disconnection occurs. In response to the command, the switching circuit is configured to output a selection signal for outputting a non-synchronized pulse signal.

[0012]

[0013]

[0014]

[0015]

[0016]

[0017]

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an essential part of an embodiment of the present invention, FIG. 2 is a block diagram showing the outline of the embodiment, and FIG. 3 is an explanatory view showing an operation example of a red indicator light synchronizing signal line. Is.
In the figure, the same configurations as those of the conventional example are denoted by the same reference numerals, and the description of the duplicated configurations will be omitted. 7 is a fire detector, 8 is a fire hydrant, 9 is a water spray fire extinguisher, and these are tunnel 1
A plurality of monitoring ranges A to N are provided. Reference numeral 10 is a red indicator light sync signal line for transmitting a sync pulse signal of, for example, 2 Hz, which is constantly output from the disaster prevention board 2, to each relay board 3.

Reference numeral 11 denotes a CPU provided in each relay board 3.
(Microcomputer), 12 is a disaster prevention device operation / monitoring control circuit for operating and monitoring control of the disaster prevention device such as the fire detector 7, the fire hydrant device 8 and the water spray fire extinguisher device 9 while transmitting signals to the disaster prevention panel 2. , 13 is a start-up control circuit that receives an instruction to turn on or off the indicator light from the disaster prevention panel 2, 14 is a bypass control circuit that drives and controls a switching element of a bypass circuit described later, and 15 is a selection control instruction from the disaster prevention panel 2. A selection control circuit 16 for receiving the signal is a disconnection abnormality determination circuit for determining disconnection of the red indicator light synchronization signal line 10. The CPU 11 includes a disaster prevention device operation / monitoring control circuit 11 to a disconnection abnormality determination circuit 16.

Reference numeral 17 is a red indicator light control circuit for turning on or blinking the red indicator lamp 5 in response to a lighting or blinking start control signal from the start control circuit 13, and 18 is a red indicator lamp synchronizing signal line 10 in the relay board 3. A sync signal receiving circuit for receiving and outputting a sync pulse signal from the device, 19 is provided in the relay board 3, and a non-sync signal generating circuit for generating and outputting a sync signal of 2 Hz, for example, 20 is a sync signal receiving circuit 1
8 and a signal from the non-synchronous signal generating circuit 19, and a switching circuit for switching so as to output the non-synchronous pulse signal from the synchronous pulse signal when the selection signal is received, and 21 is a red indicator light input to the relay board 3. A disconnection monitoring circuit that monitors disconnection from the synchronization pulse signal of the synchronization signal line 10, and 22 is provided in the relay board 3 and is an amplifier circuit that amplifies the synchronization pulse signal transmitted to the following relay board 3 and the amplifier circuit itself fails. When it does, it outputs a failure signal. Reference numeral 23 is a bypass circuit having a switching element 23a connected in parallel to the amplifier circuit 22.

Next, the operation of the above embodiment will be described. First, a normal case where there is no abnormality such as a fire in each of the monitoring ranges A to N in the tunnel 1 and the pump is stopped will be described. In this case, a lighting command is issued from the disaster prevention board 2 to each relay board 3 corresponding to each monitoring range A to N, and the activation control circuit 13 of each relay board 3 that has received the lighting instruction lights up. The start control signal of the red indicator lamp control circuit 17
Output to. At this time, the red indicator light control circuit 17
Receives the sync pulse signal that is always output from the disaster prevention panel 2 from the red indicator light sync signal line 10, but creates a lighting drive signal and outputs it to the plurality of red indicator lights 5 to output the respective red indicator lights. Turn 5 on.

Next, there will be described a case where there is an abnormality such as a fire in, for example, two adjacent monitoring ranges A and B in the tunnel 1 and two pumps corresponding to the two monitoring ranges A and B are driven. . In this case, first, a plurality of fire detectors 7 detect a fire, or a pump start button (not shown) of the fire hydrant device is pressed, and a fire signal is transmitted to the disaster prevention board 2 via the disaster prevention equipment operation / monitor control circuit 12. Then, the pump is driven to operate the fire hydrant device 8 or the water spray fire extinguisher device 9. Corresponding to the drive of the pump, the disaster prevention panel 2 issues an indicator light blinking command to each of the relay panels 3 of the two monitoring ranges A and B, and each relay panel 3 that has received the command
The startup control circuit 13 of 1 outputs a flashing startup control signal to the red indicator light control circuit 17. At this time, each red indicator light control circuit 17 creates a blinking drive signal based on the sync pulse signal from the red indicator light sync signal line 10 and outputs it to the plurality of red indicator lights 5 to output the red indicator lights 5 at 2 Hz. Flashes in a cycle. The red indicator light control circuit 17 of the two relay boards 3 receives the sync pulse signals constantly output from the disaster prevention board 2 from the common red indicator light sync signal line 10, respectively.
Since the blinking drive signal is generated based on the synchronization pulse signal, the blinking timing does not shift between the two red indicator lamps 5 in the two monitoring ranges A and B.

In the above description, the case where there is an abnormality such as a fire in the two adjacent monitoring ranges A and B is the same as in the case where there are two or more monitoring ranges or no adjacent monitoring ranges. There is no difference in the blinking timing of the red indicator lamp 5, and there is no discomfort. Although the above description has been made assuming that there is one pump in one monitoring range, the same operation as above is performed even when two or more monitoring ranges, for example A and B, are shared by one pump. To do.

Further, when there is no abnormality such as a fire in each of the monitoring ranges A to N in the tunnel 1 and the pump is stopped normally, or there is an abnormality such as a fire in a plurality of monitoring ranges, a plurality of pumps are driven. In the abnormal case, for example, when the amplifier circuit 22 of the relay board 3 in the two monitoring ranges A and B fails, the amplifier circuit 22 itself outputs failure information to the bypass control circuit 14. The bypass control circuit 14 that has received the failure information outputs a drive signal to turn on the switching element 23a of the bypass circuit 23, and the bypass circuit 23
To form. Therefore, the sync pulse signal is transmitted to the succeeding relay board 3 by the bypass circuit 23 even if the amplifier circuit 22 fails.

When the amplifier circuits 22 of the two adjacent relay boards 3 respectively fail in this way, for example, the distance between the two relay boards 3 and 3 is long, and the red indicator light synchronizing signal line connecting them is provided. If the length of 10 is long, the sync pulse signal may be attenuated and may not be transmitted to the subsequent amplifier circuit 22 of the relay board 3. Therefore, in such a case, the bypass control circuit 14 sends the failure information received from the amplifier circuit 22 to the disaster prevention device operation / monitoring control circuit 12, and the circuit 1
Since 2 transmits the failure information to the disaster prevention board 2, when the failure information is received from two consecutive relay boards 3 in this manner, the non-synchronous signal generation circuit 19 for the abnormal relay boards 3 and subsequent ones is received. A sorting control command for sorting is output to the sorting control circuit 15, the sorting control circuit 15 outputs a sorting signal that causes the switching circuit 20 to output a non-synchronized pulse signal, and the red indicator lamp control circuit 17 outputs a non-synchronized signal generation circuit. 19 non-synchronous pulse signals are output.

Therefore, when the pump is abnormally driven, the red indicator lamp 5 of each relay panel 3 after the abnormal relay panel 3 does not depend on the synchronizing pulse signal of the red indicator synchronizing signal line 10, and the non-synchronous signal generating circuit 19 The blinking drive signal generated based on the non-synchronized pulse signal of (2) causes the blinking to be performed at a cycle of 2 Hz, which is to be backed up. In addition, when the pump is stopped normally, a startup control command for lighting is output from the disaster prevention panel 2 to the startup control circuit 13.
A lighting start control signal is output to the red indicator lamp control circuit 17, and the red indicator lamp control circuit 17 creates a lighting drive signal and outputs it to the red indicator lamp 5 to light it.

Further, in the normal case where the pump is stopped or in the abnormal case where the pump is driven, for example, the red indicator light synchronization for inputting the synchronization pulse signal to the relay board 3 in one monitoring range A is performed. When the signal line 10 is disconnected, the disconnection abnormality determination circuit 16 determines from the detection information detected by the disconnection monitoring circuit 21 that there is a disconnection, and sends the disconnection signal to the disaster prevention device operation / monitoring control circuit 12, which circuit 12 It is sent to the disaster prevention board 2 as the disconnection information. When the disconnection board 2 receives the disconnection information from the relay board 3 in this way,
A selection control command for selecting the non-synchronous signal generation circuit 19 for the abnormal relay board 3 and the subsequent is output to the selection control circuit 15, and the selection control circuit 15 outputs a selection signal for causing the switching circuit 20 to output the non-synchronized pulse signal. Red indicator light control circuit 17
Then, the non-synchronized pulse signal of the non-synchronized signal generation circuit 19 is output.

Therefore, even if the red indicator light sync signal line 10 is disconnected when the pump is abnormally driven and the sync pulse signal is not transmitted to each relay board 3 after the disconnection,
After the disconnection, the red indicator lamp 5 of each relay board 3 is made to blink by the blinking drive signal generated based on the non-synchronization pulse signal of the non-synchronization signal generation circuit 19 and is backed up.

The case where the red indicator light synchronization signal line 10 immediately before the monitoring area A is broken has been described above.
FIG. 3 shows an operation example of the red indicator light synchronization signal 10 in the case where disconnection occurs between C and D, and each disconnection is restored. In this case as well, when the pump is stopped normally, the start control circuit 13 outputs the start control command for lighting to the red light control circuit 1.
A lighting start control signal is output to 7, and the red indicator lamp control circuit 17 creates a lighting drive signal and outputs it to the red indicator lamp 5 for lighting. In the above-mentioned embodiment, the R type distributed type using a common line between the relay board and each fire detector as the terminal is explained, but the P type using each dedicated line between the relay board and each fire detector is explained. It goes without saying that the present invention is also applicable to the type dispersion type.

[0030]

As described above, according to the present invention, when one of the relay boards for monitoring and controlling the disaster prevention equipment provided for each of a plurality of monitoring ranges dividing the inside of the tunnel is broken or disconnected. The failure or disconnection information is transmitted to the disaster prevention board, and the disaster prevention board issues a selection control command for selecting the non-synchronized signal generation circuit to the relay boards for the abnormal relay boards and subsequent, and each relay board relays according to the command. The red display control circuit creates a blinking drive signal based on the non-synchronous pulse signal of the non-synchronous signal generation circuit provided in the panel to blink the red indicator light. Even if the synchronous pulse signal is not transmitted to the panel, the effect that the red indicator light can be blinked when there is an abnormality such as a fire in the tunnel and the pump is operating abnormally To.

The signal output from the disaster prevention board is transmitted to the succeeding relay board by the bypass circuit even if the amplifier circuit fails, and when the amplifier circuit fails, failure information is sent to the disaster prevention board. When the failure information is received from two consecutive relay boards, the disaster prevention board outputs a control command to the relay boards after the abnormal relay board.

[0032]

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part of an embodiment of the present invention.

FIG. 2 is a configuration diagram showing an outline of the embodiment.

FIG. 3 is an explanatory diagram showing an operation example of a red indicator light synchronization signal line.

FIG. 4 is a configuration diagram showing an outline of conventional disaster prevention equipment for a tunnel.

[Explanation of symbols]

2 disaster prevention board 3 relay board 5 Red indicator light 10 Red indicator light sync signal line 13 Start control circuit 17 Red indicator light control circuit

─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-52-75898 (JP, A) JP-A-53-363096 (JP, A) JP-A-63-89997 (JP, A) JP-A-2- 66698 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G08B 19/00 G08B 23/00 A62C 3/02

Claims (3)

(57) [Claims] 1. A tunnel is divided into a plurality of monitoring ranges,
Multiple fire detectors and extinguishers are provided for each monitoring range.
Disaster prevention equipment such as a hydrant device, and each monitoring range,
In a tunnel disaster prevention equipment consisting of a relay board for monitoring and controlling disaster prevention equipment and a disaster prevention board for outputting various control commands to these relay boards, a signal for transmitting a signal output from the disaster prevention board to each relay board.
A relay line is provided so that each relay board can amplify the signal transmitted to the subsequent relay board.
And a switching element connected to the width circuit and the amplifier circuit.
The failure information of the bypass circuit and the amplifier circuit
When turned off, the switching element of the bypass circuit is turned on.
A bypass control circuit for outputting a drive signal to
The bypass control circuit receives the failure information received from the amplifier circuit.
Tunnel disaster prevention equipment characterized by transmitting to the disaster prevention board . 2. The disaster prevention board is two continuous relay boards.
When receiving the failure information from the relay board after the abnormal relay board
2. The tunnel disaster prevention equipment according to claim 1, wherein the control command is output as a result. 3. A tunnel is divided into a plurality of monitoring ranges,
A plurality of fire hydrant devices provided for each monitoring range and
A red indicator light and a red indicator provided for each monitoring range
Relay boards that drive and control lights and various types of relay boards
Tunnel disaster prevention equipment consisting of a disaster prevention board that outputs control commands for
In the equipment, it is output from the disaster prevention board and is synchronized with the red indicator light
Red that transmits the synchronous pulse signal to destroy each relay board
A color indicator light sync signal line is provided, and each relay board has an indicator lighting command from the disaster prevention board or an indicator light point.
In response to a power-off command, output a lighting or blinking start control signal.
Startup control circuit and flashing startup control from the startup control circuit
When receiving a signal, the sync signal from the red indicator sync signal line
Flashing drive signal in sync with each red indicator in response to a loose signal
A red indicator lamp control circuit for outputting a synchronous signal receiving circuit configured to receive a synchronization pulse signal from the red indicator light synchronizing signal line, and no synchronizing signal generating circuit configured to generate a non-synchronization pulse signal, selecting and a switching circuit for switching so as to output a no-sync pulse signal from the synchronizing pulse signal when receiving a signal, the relay board when a fault or disconnected, from the disaster Edition
In response to a control instruction of the, no sync pulse signal to the switching circuit
Tunnel disaster prevention equipment, which is characterized by outputting a selection signal for outputting .