JP2022039344A - Disaster prevention system - Google Patents

Abstract

To notify a condition of a tunnel to other tunnels more reliably.SOLUTION: In a disaster prevention system for a plurality of tunnels installed along roads, a controller for controlling an emergency facility installed at the tunnel is installed at each of the plurality of tunnels, the controllers are connected by a computer network each other and each of the controller sends first information displaying a condition of the tunnel at which the controller is installed to all of the controllers installed at other tunnels via the computer network regularly.SELECTED DRAWING: Figure 1

Description

The present invention relates to a disaster prevention system for tunnels.

The disaster prevention system for the tunnel has a control device to control the emergency facility. The control device receives a notification signal indicating the possibility of a disaster such as a fire or an accident in the tunnel from a notification device such as a fire detector or a push-button notification device placed in the tunnel, and uses this notification signal. Based on this, it controls alarm equipment such as speakers, buzzers, alarm indicators, alarm display boards, and automatic fire extinguishing equipment such as water spray equipment. For example, Patent Document 1 discloses a disaster prevention receiver as a control device.

As shown in FIG. 7, when a plurality of tunnels exist along the road R, a control device as described above is installed in each of the plurality of tunnels. When a disaster such as a fire or an accident occurs in one of multiple tunnels, the control device of the tunnel where the disaster occurred issues an alarm of the occurrence of the disaster by the alarm equipment installed in the tunnel, and this Information about the occurrence of a disaster is also sent to other tunnels. By doing so, the occurrence of secondary disasters is prevented.

Japanese Unexamined Patent Publication No. 2020-10359

In a conventional disaster prevention system, as shown in FIG. 7, the control devices of adjacent tunnels are connected by parallel signal lines, and information is transmitted between the control devices of adjacent tunnels via the parallel signal lines. Sending and receiving are being performed. Therefore, for example, when a fire breaks out in the tunnel T1, it exists between the tunnel T1 and the tunnel T4 in order to transmit the information regarding the occurrence of the fire to the tunnel T4 which is not adjacent to the tunnel T1. The control devices of the tunnels T2 and T3 needed to relay this information. Therefore, for example, as shown in FIG. 8, when a failure occurs in the control device of the tunnel T3, the flow of information is blocked in the tunnel T3, and the information cannot be delivered to the control device of the tunnel T3. However, the information from the tunnel T1 could not be delivered to the tunnel T4.

Therefore, an object of the present invention is to reliably notify the state of a tunnel by another tunnel.

In order to solve the above problems, the disaster prevention system in the present invention is a disaster prevention system for a plurality of tunnels installed along a road, and each of the plurality of tunnels is an emergency system installed in the tunnel. A control device for controlling the facility is installed, the control devices are connected to each other by a computer network, and each of the control devices receives a first information indicating the state of the tunnel in which the control device is installed. , Periodically transmit to all control devices installed in other tunnels using the computer network.

The first information transmitted by the control device may include information as to whether or not there has been a report from the reporting device installed in the tunnel in which the control device is installed.

The first information transmitted by the control device may include information indicating whether or not the tunnel in which the control device is installed has been restored to its original state.

When the state of the tunnel in which the control device is installed changes, the control device is provided with second information indicating that the state of the tunnel in which the control device is installed has changed in another tunnel. The computer network may be used for transmission to the control device.

The control device may determine that the state of the tunnel has changed when a notification is received from the notification equipment installed in the tunnel in which the control device is installed.

INDUSTRIAL APPLICABILITY According to the present invention, the state of a tunnel can be reliably notified by another tunnel.

It is a figure which shows the disaster prevention system which concerns on one Embodiment of this invention. It is a figure which shows an example of a plurality of tunnels installed continuously along a road. It is a figure explaining the communication in the disaster prevention system of FIG. It is a figure which shows an example of the 1st information. It is a figure which shows an example of the processing operation which is performed periodically in each control device Cn of the disaster prevention system which concerns on one Embodiment of this invention. It is a figure which shows an example of the processing operation which is performed periodically in each control device Cn of the disaster prevention system which concerns on one Embodiment of this invention. It is a figure which shows an example of the conventional disaster prevention system. It is a figure explaining the communication in the disaster prevention system of FIG.

<Disaster prevention system>
FIG. 1 is a diagram showing a disaster prevention system according to an embodiment of the present invention. As shown in FIG. 2, the disaster prevention system is a disaster prevention system for a plurality of tunnels T1, T2, ..., TN (for example, N ≧ 3) continuously installed along the road R.

A control device Cn (1, 2, ..., N) is installed in each tunnel Tn (n = 1, 2, ..., N), and the disaster prevention system according to this embodiment has a plurality of these. It has control devices C1, C2, ..., CN. As shown in FIG. 1, the plurality of control devices C1, C2, ..., CN are connected by a computer network NW such as an IP network, and information is transmitted to and received from each other using the computer network NW.

Generally, an emergency facility is installed in a tunnel in case of a disaster such as a fire or an accident in the tunnel. Emergency facilities include automatic notification equipment such as fire detectors, operation-type notification equipment such as push-button notification equipment, fire extinguishing equipment such as fire hydrant equipment, alarm equipment such as alarms and alarm display boards, and guidance marking equipment. There are evacuation guidance facilities.

Each control device Cn (n = 1, 2, ..., N) is an emergency facility installed in the tunnel Tn (n = 1, 2, ..., N) in which the control device Cn is installed. Control. For example, each control device Cn receives a notification signal from an automatic notification facility installed in the tunnel Tn or an operation-type notification device, and based on this notification signal, sets an alarm facility or an evacuation guidance facility installed in the tunnel Tn. Control.

As shown in FIG. 3, each control device Cn periodically (for example, every 60 seconds) provides first information indicating the state of the tunnel Tn in which the control device Cn is installed, using the computer network NW. To), send to all controls installed in other tunnels. In FIG. 3, the first information indicating the state of the tunnel T2 is transmitted from the control device C2 of the tunnel T2 to all the control devices C1, C3, ..., CN set in the other tunnels.

Therefore, in the present embodiment, even if a failed control device exists in the control devices C1, C2, ..., CN, information indicating the state of the tunnel is provided to the control devices other than the failed control device. It can be provided on a regular basis. Therefore, in the present embodiment, it is possible to reliably notify the state of the tunnel by another tunnel.

As a result, in the present embodiment, the control device of each tunnel can periodically know the state of other tunnels, and the alarm equipment installed in the tunnel provides appropriate information notification (alarm sound, alarm information). It will be possible to make a sign). For example, in the present embodiment, when a change occurs in the first information received periodically, the control device of each tunnel can notify the information according to the change.

Further, in the present embodiment, the control device of each tunnel periodically receives the first information from the control devices of other tunnels. If there is a control device that does not transmit the first information, there is a possibility that the control device has a failure. Therefore, in the present embodiment, it is possible to periodically check whether or not a failure has occurred in the control device.

The first information indicating the state of the tunnel Tn is whether or not there was a report from a reporting device such as an automatic notification device or an operation type notification device installed in the tunnel Tn, for example, a notification signal is received from the notification device. It is good to include information about whether or not it was. For example, as shown in FIG. 4, the first information includes a plurality of fire detectors FD1, FD2, ..., FDM and a plurality of push button type notification devices PBl, PB2, ... , It is preferable to include the presence / absence of a notification signal from each of PBL.

By doing so, in the present embodiment, the control device of each tunnel can know whether or not there is a report from the report device in another tunnel. Therefore, in the present embodiment, the control device of each tunnel can know the presence or absence of a disaster such as a fire or an accident in another tunnel.

For example, in the present embodiment, when the information regarding the presence / absence of the notification signal from the notification device among the first information received periodically changes, the control device of each tunnel changes to the first information. It becomes possible to know that a disaster such as a fire or an accident has occurred in the tunnel where the above occurred. Therefore, in the present embodiment, the control device of each tunnel causes a disaster such as a fire or an accident in another tunnel to the driver of a car traveling in the tunnel due to the alarm equipment installed in the tunnel. It will be possible to notify.

Further, the first information indicating the state of the tunnel Tn may include information indicating whether or not the tunnel has been restored to its original state. Here, "the tunnel has been restored to its original state" means that the tunnel has recovered from a state requiring traffic closure due to a disaster. By doing so, the control device of each tunnel is restored to its original state by the alarm equipment installed in the tunnel to the driver of the automobile traveling in the tunnel, for example, the traffic is closed in the other tunnel. Can be notified that is finished.

At this time, the first information transmitted by the control device Cn is not only information indicating whether or not the tunnel Tn in which the control device Cn is installed has been restored to its original state, but also whether or not another tunnel has been restored to its original state. Information may be included. For example, as shown in FIG. 4, the first information may include information on whether or not each tunnel Tn has been restored to its original state for all tunnels T1, T2, ..., TN.

It is preferable that each control device Cn rewrites the first information when the state of the tunnel Tn in which the control device Cn is installed changes. For example, when the first information includes the presence / absence of a notification signal from each of the plurality of fire detectors FD1, FD2, ..., FDM installed in the tunnel Tn, the control device Cn is the fire detector FDn. When a notification signal is received from (n = 1, 2, ..., M), information regarding the presence or absence of a notification signal from the fire detector FDn in the first information is reported from the fire detector FDn. It is preferable to rewrite the information indicating that there is no signal to the information indicating that there is a notification signal from the fire detector FDn.

FIG. 5 is a diagram showing an example of a processing operation that is periodically (that is, at predetermined time intervals) in each control device Cn of the disaster prevention system according to the present embodiment. Each control device Cn transmits the first information to the control devices of other tunnels (step S501). If the state of the tunnel Tn in which the control device Cn is installed changes by the time when the predetermined time elapses (step S502, NO), each control device Cn has the first information. Is rewritten (step S504).

<When a change occurs>
Assuming that the above-mentioned periodic information transmission is performed every 60 seconds, for example, if a disaster occurs in the tunnel 30 seconds after the information transmission, this disaster occurs until 30 seconds after the next information transmission. The outbreak will not be notified to other tunnels. When the car is traveling at a speed of 60 km / h, the car travels only 500 m in 30 seconds. Therefore, assuming that the vehicle length is 5 m, the inter-vehicle distance is 60 m, and the road is one lane up and down, 14 vehicles will leave each tunnel in 30 seconds. With regular information transmission alone, drivers of these vehicles may not be notified of the occurrence of a disaster until they reach the next tunnel.

Therefore, in addition to the periodic transmission of the first information described above, the control device Cn of the tunnel Tn provides the second information indicating that the state of the tunnel Tn has changed when the state of the tunnel Tn has changed. It may be sent to the control device of another tunnel. This second information may include only the information indicating the state of the tunnel Tn, or may include the same items as the first information, and the control device that has received the second information receives the second information. By comparing the first information received immediately before the tunnel Tn with the second information, it may be possible to confirm how the state of the tunnel Tn has changed. Further, at this time, the control device Cn of the tunnel Tn may transmit the second information to all the control devices of the other tunnels, or may be predetermined from a tunnel near the tunnel Tn (for example, from the tunnel Tn). It may be possible to transmit only to a part of other tunnels such as tunnels existing within the distance of.

For example, the control device Cn of the tunnel Tn determines that the state of the tunnel Tn has changed when a notification is received from the notification device installed in the tunnel Tn, that is, when a notification signal is received from the notification device. For example, the control device Cn of the tunnel Tn states that the state of the tunnel Tn has changed when the fire detector installed in the tunnel Tn detects a fire, that is, when a notification signal is received from the fire detector. A second piece of information, including information indicating that a fire has occurred in the tunnel Tn, is transmitted to the control device of another tunnel. Further, the control device Cn of the tunnel Tn is set in the tunnel Tn when the button of the push button type notification device installed in the tunnel Tn is pressed, that is, when a notification signal is received from the push button type notification device. Assuming that the state has changed, the second information including the information indicating that a disaster has occurred in the tunnel Tn is transmitted to the control device of another tunnel.

Further, the second information may include information about the tunnel Tn in which the control device Cn is installed (for example, the name of the tunnel). By doing so, the control device that has received the second information can use the alarm display board installed in the tunnel where this control device is installed to provide detailed information such as "Fire in tunnel A". It will be possible to notify the driver of a car traveling in a tunnel. The second information may include the time when the change occurred. By doing so, it becomes possible to notify the driver of the automobile traveling in the tunnel with more detailed information such as "a fire broke out at B hours and C minutes in the A tunnel".

FIG. 6 is a diagram showing an example of a processing operation that is periodically (that is, at predetermined time intervals) in each control device Cn of the tunnel disaster prevention system according to the present embodiment. Each control device Cn transmits the first information to the control device of another tunnel (step S601). If the state of the tunnel Tn in which the control device Cn is installed changes by the time when the predetermined time elapses (step S602, NO), each control device Cn has the first information. Is rewritten and the second information is transmitted to the control device of another tunnel (step S604).

The present invention has been described above according to a preferred embodiment of the present invention. Although the present invention has been described here with reference to specific examples, various modifications and changes can be made to these specific examples without departing from the spirit and scope of the invention described in the claims.

Tn tunnel Cn Control device installed in tunnel Tn NW computer network

Claims (5)

A disaster prevention system for multiple tunnels installed along the road
Each of the multiple tunnels is equipped with a control device that controls the emergency facilities installed in the tunnel.
The control devices are connected to each other by a computer network.
Each of the control devices periodically transmits first information indicating the state of the tunnel in which the control device is installed to all the control devices installed in the other tunnels using the computer network. , Disaster prevention system. The disaster prevention system according to claim 1, wherein the first information transmitted by the control device includes information on whether or not there was a report from a reporting device installed in the tunnel in which the control device is installed. .. The disaster prevention system according to claim 1 or 2, wherein the first information transmitted by the control device includes information indicating whether or not the tunnel in which the control device is installed has been restored to its original state. When the state of the tunnel in which the control device is installed changes, the control device is provided with second information indicating that the state of the tunnel in which the control device is installed has changed in another tunnel. The disaster prevention system according to any one of claims 1 to 3, which is transmitted to a control device using the computer network. The disaster prevention system according to claim 4, wherein the control device determines that the state of the tunnel has changed when a report is received from a notification device installed in the tunnel in which the control device is installed.

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