JP6393485B2

JP6393485B2 - Tunnel disaster prevention system

Info

Publication number: JP6393485B2
Application number: JP2014027453A
Authority: JP
Inventors: 和之大西; 隆文瀬戸口
Original assignee: Nohmi Bosai Ltd
Current assignee: Nohmi Bosai Ltd
Priority date: 2014-02-17
Filing date: 2014-02-17
Publication date: 2018-09-19
Anticipated expiration: 2034-02-17
Also published as: JP2015153223A

Description

本発明は、防災受信盤と、該防災受信盤と伝送線を介して接続された複数の中継器と、各中継器と個別の幹線を介して接続された複数の火災検知器とを有し、防災受信盤が、各中継器を介して、複数の火災検知器と信号伝送するトンネル防災システムに関する。 The present invention has a disaster prevention receiving board, a plurality of repeaters connected to the disaster prevention receiving board via transmission lines, and a plurality of fire detectors connected to each repeater via individual trunk lines. The disaster prevention reception board relates to a tunnel disaster prevention system in which signals are transmitted to a plurality of fire detectors via each repeater.

一般的にトンネル防災システムは、一定範囲を監視して火災を検知するための複数の火災検知器と、該各火災検知器と火災信号等の信号を送受信して集約する防災受信盤とを有している。
トンネル防災システムとしては、防災受信盤と各火災検知器とが中継器を介して各種信号の送受信を行うもの（Ｒ型伝送方式）があり、このようなものとしては、例えば特許文献１のものが挙げられる。各火災検知器は幹線によって中継器に接続されている。 Generally, a tunnel disaster prevention system has a plurality of fire detectors for detecting a fire by monitoring a certain range, and a disaster prevention reception panel for transmitting and receiving each fire detector and signals such as fire signals. doing.
As a tunnel disaster prevention system, there is one in which a disaster prevention receiving board and each fire detector transmit and receive various signals via a repeater (R-type transmission system). Is mentioned. Each fire detector is connected to the repeater by a trunk line.

特開２００２−２４６９６２号JP 2002-246932

長いトンネルを監視するためには、多くの火災検知器が必要であり、各火災検知器が接続される中継器の数も多くなる。中継器の数が多くなれば、中継器が故障する可能性も高くなる。
中継器の故障の例として、中継器に搭載している電源の異常が挙げられる。ある中継器において電源異常が発生すると、当該中継器に接続されている火災検知器が作動しなくなり、これによって火災監視されていた区間については、火災監視できなくなるという問題がある。
この点、特許文献１には、中継器（特許文献１の「中継増幅盤」）の電源の異常発生への対応については言及がない。 In order to monitor a long tunnel, many fire detectors are required, and the number of repeaters to which each fire detector is connected increases. If the number of repeaters increases, the possibility that the repeater will fail increases.
An example of a failure of a repeater is an abnormality of a power supply installed in the repeater. When a power supply abnormality occurs in a certain repeater, there is a problem that the fire detector connected to the repeater does not operate, and the section that has been monitored for fire cannot be monitored for fire.
In this regard, Patent Document 1 does not mention the response to the occurrence of power supply abnormality of the repeater (“Relay Amplifier Panel” in Patent Document 1).

本発明は、上記のような課題を解決するためになされたものであり、中継器の電源に異常が発生しても電源バックアップを可能として火災監視できなくなる区間が生じないトンネル防災システムを提供することを目的とする。 The present invention has been made to solve the above-described problems, and provides a tunnel disaster prevention system that enables power backup even when an abnormality occurs in the power supply of a repeater and does not cause a section where fire monitoring cannot be performed. For the purpose.

（１）本発明に係るトンネル防災システムは、防災受信盤と、該防災受信盤と伝送線を介して接続された複数の中継器と、該各中継器に接続された複数の端末機器とを有し、前記防災受信盤が、前記各中継器を介して、前記複数の端末機器の状態監視を行うトンネル防災システムであって、
前記各中継器は、
前記複数の一部又は全部の端末機器の状態監視を行う制御部と、
平常時において前記制御部に電源を供給する電源と、前記制御部と前記電源との接続／非接続、前記制御部と隣接する他の中継器の電源との接続／非接続を切り替えるスイッチング手段とを備え、
平常時においては、
前記スイッチング手段は、前記制御部と前記電源を接続状態にすると共に、前記制御部と前記隣接する他の中継器の電源を非接続状態にし、
前記電源に異常が発生したときには、
前記スイッチング手段は、前記制御部と前記電源を非接続状態にすると共に、前記制御部と前記隣接する他の中継器の電源を接続状態にすることを特徴とするものである。 (1) A tunnel disaster prevention system according to the present invention includes a disaster prevention receiving board, a plurality of repeaters connected to the disaster prevention receiving board via a transmission line, and a plurality of terminal devices connected to the respective repeaters. And the disaster prevention receiving board is a tunnel disaster prevention system for monitoring the state of the plurality of terminal devices via each repeater,
Each repeater is
A control unit that monitors the state of a part or all of the plurality of terminal devices;
A power supply for supplying power to the control unit in normal times, switching means for switching connection / non-connection between the control unit and the power source, and connection / non-connection between a power source of another repeater adjacent to the control unit; With
In normal times,
The switching means connects the control unit and the power source in a connected state, and disconnects the power source of the control unit and the other adjacent repeater,
When an abnormality occurs in the power supply,
The switching means is characterized in that the control unit and the power supply are disconnected, and the control unit and the power supply of the other adjacent repeater are connected.

（２）また、上記（１）に記載のものにおいて、前記防災受信盤は、前記電源の異常を検知する異常検知手段と、該異常検知手段によって異常が検知されたときにこれを前記隣接する他の中継器の制御部に通知する通知手段を備え、
前記電源に異常が発生したときには、
前記防災受信盤は前記電源に異常が発生した旨を前記隣接する他の中継器の制御部に通知し、
前記隣接する他の中継器の制御部は前記防災受信盤の通知に基づいて、前記電源に異常が発生した前記中継器の制御部と前記隣接する他の中継器の電源とを接続状態にするように前記隣接する他の中継器のスイッチング手段を制御することを特徴とするものである。 (2) Further, in the above-described (1), the disaster prevention receiving panel is adjacent to an abnormality detection unit that detects an abnormality of the power source and an abnormality detected by the abnormality detection unit. A notification means for notifying the controller of another repeater;
When an abnormality occurs in the power supply,
The disaster prevention receiving board notifies the controller of the other adjacent repeater that an abnormality has occurred in the power source,
Based on the notification from the disaster prevention reception board, the control unit of the other adjacent repeater places the control unit of the repeater in which an abnormality has occurred in the power supply and the power supply of the other adjacent repeater in a connected state. Thus, the switching means of the other adjacent repeater is controlled as described above.

（３）また、本発明に係るトンネル防災システムは、防災受信盤と、該防災受信盤と伝送線を介して接続された複数の中継器と、該各中継器に接続された複数の端末機器とを有し、前記防災受信盤が、前記各中継器を介して、前記複数の端末機器の状態監視を行うトンネル防災システムであって、前記各中継器は、前記端末機器の状態監視を行う複数の制御部と、平常時において前記複数の制御部の各制御部にそれぞれ電源を供給する複数の電源と、前記各制御部と該各制御部に電源を供給する各電源との接続／非接続、前記各制御部と隣接する他の中継器の各電源との接続／非接続を切り替えるスイッチング手段とを備え、平常時においては、前記スイッチング手段は、前記各制御部と前記各電源を接続状態にすると共に、前記各制御部と前記隣接する他の中継器の各電源を非接続状態にし、前記各電源のいずれかに異常が発生したときには、前記スイッチング手段は、前記異常が発生した前記電源と該電源から電源供給を受けていた制御部とを非接続状態にすると共に、前記異常が発生した電源から電源供給を受けていた制御部と前記隣接する他の中継器のいずれかの電源を接続状態にすることを特徴とするものである。 (3) Moreover, the tunnel disaster prevention system according to the present invention includes a disaster prevention receiving board, a plurality of repeaters connected to the disaster prevention receiving board via a transmission line, and a plurality of terminal devices connected to the respective repeaters. And the disaster prevention receiving board monitors the status of the plurality of terminal devices via the relays, and the relays monitor the status of the terminal devices. Connection / non-connection between a plurality of control units, a plurality of power sources that supply power to the control units of the plurality of control units in normal times, and a power source that supplies power to the control units and the control units And switching means for switching connection / disconnection between each control unit and each power source of another repeater adjacent thereto, and in normal times, the switching means connects each control unit and each power source. And each control unit When the power supplies of other adjacent repeaters are disconnected, and an abnormality occurs in any of the power supplies, the switching means receives the power supply from which the abnormality has occurred and the power supply from the power supply. The control unit is disconnected, and the control unit receiving power from the power source in which the abnormality has occurred is connected to one of the power supplies of the other adjacent repeaters. Is.

（４）また、上記（３）に記載のものにおいて、前記防災受信盤は、前記各電源の異常を検知する異常検知手段と、該異常検知手段によって異常が検知されたときにこれを前記隣接する他の中継器の制御部に通知する通知手段を備え、
前記電源のいずれかに異常が発生したときには、
前記防災受信盤は前記電源に異常が発生した旨を前記隣接する他の中継器の制御部に通知し、
前記防災受信盤から通知を受けた前記隣接する他の中継器の制御部は、前記防災受信盤の通知に基づいて、前記異常が発生した電源から電源供給されていた制御部と前記隣接する他の中継器の電源とを接続状態にするように前記隣接する他の中継器のスイッチング手段を制御することを特徴とするものである。 (4) Moreover, in the above-described (3), the disaster prevention receiving board detects an abnormality of each power source and an abnormality detecting unit when the abnormality is detected by the abnormality detecting unit. A notification means for notifying the control unit of the other repeater,
When an abnormality occurs in any of the power supplies,
The disaster prevention receiving board notifies the controller of the other adjacent repeater that an abnormality has occurred in the power source,
The control unit of the other adjacent repeater that has received the notification from the disaster prevention reception board is based on the notification of the disaster prevention reception board and the control unit that has been supplied with power from the power source in which the abnormality has occurred The switching means of the other adjacent repeater is controlled so that the power supply of the repeater is connected.

（５）また、上記（１）又は（４）に記載のものにおいて、前記スイッチング手段は、主リレーと副リレーとを備えており、
前記主リレーは、主コモン接点と主メイク接点と主ブレイク接点とを有し、
前記副リレーは、副コモン接点と副メイク接点と副ブレイク接点とを有し、
前記主コモン接点は前記制御部と、前記主メイク接点は前記電源と、前記主ブレイク接点は前記副ブレイク接点と接続され、
前記副コモン接点は前記隣接する他の中継器の副コモン接点と、前記副メイク接点は前記電源と接続されていることを特徴とするものである。 (5) Further, in the above (1) or (4), the switching means includes a main relay and a sub relay,
The main relay has a main common contact, a main make contact, and a main break contact,
The sub-relay has a sub-common contact, a sub-make contact, and a sub-break contact,
The main common contact is connected to the control unit, the main make contact is connected to the power source, and the main break contact is connected to the sub-break contact.
The sub-common contact is connected to the sub-common contact of the other adjacent repeater, and the sub-make contact is connected to the power source.

（６）また、上記（１）乃至（５）のいずれかに記載のものにおいて、前記隣接する他の中継器がひとつ上流側に隣接する前記中継器であることを特徴とするものである。 (6) Further, in the above-described one of (1) to (5), the other adjacent repeater is the repeater adjacent to one upstream side.

（７）また、上記（５）に記載のものにおいて、最上流に設置された中継器は、前記副コモン接点が前記防災受信盤と接続されており、
前記最上流に設置された中継器の電源に異常が発生したときには、
前記防災受信盤が前記最上流に設置された中継器の制御部に前記副コモン接点を介して電源を供給することを特徴とするものである。 (7) In addition, in the above described (5 ), the repeater installed at the uppermost stream has the sub-common contact connected to the disaster prevention receiver,
When an abnormality occurs in the power supply of the repeater installed in the most upstream,
The disaster prevention receiving board supplies power to the control unit of the repeater installed on the most upstream side via the sub-common contact.

（８）本発明に係るトンネル防災システムは、防災受信盤と、該防災受信盤と伝送線を介して接続された複数の中継器と、該各中継器に接続された複数の端末機器とを有し、前記防災受信盤が、前記各中継器を介して、前記複数の端末機器の状態監視を行うトンネル防災システムであって、
前記各中継器は、
前記複数の端末機器のうちの一部の端末機器の状態監視を行う第１制御部と、該第１制御部が状態監視を行う以外の端末機器の状態監視を行う第２制御部と、平常時において前記第１制御部に電源を供給する第１電源と、平常時において前記第２制御部に電源を供給する第２電源と、前記第１制御部と前記第１電源及び前記第２電源との接続／非接続、前記第２制御部と前記第２電源及び前記第１電源との接続／非接続を切り換えるスイッチング手段とを備え、
平常時においては、
前記スイッチング手段は、前記第１制御部と前記第１電源を接続状態にすると共に前記第１制御部と前記第２電源との接続を非接続状態にし、かつ、前記第２制御部と前記第２電源を接続状態にすると共に前記第２制御部と第１電源との接続を非接続状態にし、
前記第１電源に異常が発生したときには、
前記スイッチング手段は、前記第１制御部と前記第１電源を非接続状態にすると共に前記第１制御部と前記第２電源を接続状態にし、
前記第２電源に異常が発生したときには、
前記スイッチング手段は、前記第２制御部と前記第２電源を非接続状態にすると共に前記第２制御部と前記第１電源を接続状態にすることを特徴とするものである。 (8) A tunnel disaster prevention system according to the present invention includes a disaster prevention receiving board, a plurality of repeaters connected to the disaster prevention receiving board via a transmission line, and a plurality of terminal devices connected to the respective repeaters. And the disaster prevention receiving board is a tunnel disaster prevention system for monitoring the state of the plurality of terminal devices via each repeater,
Each repeater is
A first control unit that monitors the status of some of the terminal devices, a second control unit that monitors the status of terminal devices other than the status of the first control unit, A first power source for supplying power to the first control unit at a time, a second power source for supplying power to the second control unit at a normal time, the first control unit, the first power source, and the second power source Switching means for switching connection / disconnection between the second control unit and the second power source and the first power source,
In normal times,
The switching means connects the first control unit and the first power source, disconnects the connection between the first control unit and the second power source, and disconnects the second control unit and the first power source. Two power supplies are connected and the second control unit and the first power supply are disconnected.
When an abnormality occurs in the first power source,
The switching means disconnects the first control unit and the first power source, and connects the first control unit and the second power source,
When an abnormality occurs in the second power source,
The switching means is characterized in that the second control unit and the second power source are disconnected, and the second control unit and the first power source are connected.

（９）また、上記（８）に記載のものにおいて、前記防災受信盤は、前記第１電源及び前記第２電源の異常を検知する異常検知手段と、該異常検知手段によって異常が検知されたときにこれを前記第１制御部または前記第２制御部のうち異常が生じていない電源から電源供給を受けている制御部に通知する通知手段を備え、
前記第１電源に異常が発生したときには、
前記防災受信盤は前記第１電源に異常が発生した旨を前記第２制御部に通知し、
通知を受けた前記第２制御部は前記防災受信盤の通知に基づいて第１制御部と前記第２電源を接続状態にするように前記スイッチング手段を制御し、
前記第２電源に異常が発生したときには、
前記防災受信盤は前記第２電源に異常が発生した旨を前記第１制御部に通知し、
前記第１制御部は前記防災受信盤の通知に基づいて前記第２制御部と前記第１電源を接続状態にするように前記スイッチング手段を制御することを特徴とするものである。 (9) Further, in the above-described (8), the disaster-reception receiving board has an abnormality detected by an abnormality detecting means for detecting an abnormality in the first power supply and the second power supply, and the abnormality detecting means. Sometimes it is provided with a notification means for notifying the control unit receiving power from the power source in which no abnormality has occurred in the first control unit or the second control unit,
When an abnormality occurs in the first power source,
The disaster prevention reception board notifies the second control unit that an abnormality has occurred in the first power supply,
The second control unit that has received the notification controls the switching means to bring the first control unit and the second power source into a connected state based on the notification of the disaster prevention reception board,
When an abnormality occurs in the second power source,
The disaster prevention reception board notifies the first control unit that an abnormality has occurred in the second power source,
The first control unit controls the switching means so that the second control unit and the first power supply are connected based on a notification from the disaster prevention reception board.

（１０）また、上記（８）又は（９）に記載のものにおいて、前記スイッチング手段は、第１主リレーと第１副リレー、第２主リレーと第２副リレーを備えており、
前記第１主リレーは、第１主コモン接点と第１主メイク接点と第１主ブレイク接点とを有し、
前記第１副リレーは、第１副コモン接点と第１副メイク接点と第１副ブレイク接点とを有し、
前記第２主リレーは、第２主コモン接点と第２主メイク接点と第２主ブレイク接点とを有し、
前記第２副リレーは、第２副コモン接点と第２副メイク接点と第２副ブレイク接点とを有し、
前記第１主コモン接点は前記第１制御部と、前記第１主メイク接点は前記第１電源と、前記第１主ブレイク接点は前記第１副ブレイク接点と接続され、
前記第１副コモン接点は前記第２副コモン接点と、前記第１副メイク接点は前記第１電源と接続され、
前記第２主コモン接点は前記第２制御部と、前記第２主メイク接点は前記第２電源と、前記第２主ブレイク接点は前記第２副ブレイク接点と接続され、
前記第２副メイク接点は前記第２電源と接続されていることを特徴とするものである。 (10) Further, in the above (8) or (9), the switching means includes a first main relay and a first sub relay, a second main relay and a second sub relay,
The first main relay has a first main common contact, a first main make contact, and a first main break contact;
The first sub relay has a first sub common contact, a first sub make contact, and a first sub break contact,
The second main relay has a second main common contact, a second main make contact, and a second main break contact,
The second sub relay has a second sub common contact, a second sub make contact, and a second sub break contact,
The first main common contact is connected to the first control unit, the first main make contact is connected to the first power source, and the first main break contact is connected to the first sub-break contact;
The first sub-common contact is connected to the second sub-common contact, and the first sub-make contact is connected to the first power source;
The second main common contact is connected to the second control unit, the second main make contact is connected to the second power source, and the second main break contact is connected to the second sub-break contact;
The second sub-make contact is connected to the second power source.

本発明において、各中継器は、スイッチング手段によって、平常時には、制御部と電源を接続状態にすると共に、制御部と隣接する他の中継器の電源を非接続状態にしておき、電源に異常が発生したときには、制御部と電源を非接続状態にすると共に、制御部と隣接する他の中継器の電源とを接続状態にすることにより、隣接する他の中継器の電源によって引き続き動作可能となり、火災監視できなくなる区間が生じない。 In the present invention, each relay unit is connected to the control unit and the power source in a normal state by the switching means, and the power source of the other relay unit adjacent to the control unit is disconnected. When it occurs, the control unit and the power source are disconnected, and the control unit and the power supply of another repeater adjacent to the control unit are connected, so that it can continue to operate with the power supply of another adjacent repeater. There are no sections where fire monitoring is not possible.

本発明の一実施の形態に係る防災システム全体の説明図である。It is explanatory drawing of the whole disaster prevention system which concerns on one embodiment of this invention. 本発明の一実施の形態に係る防災システムの中継器の平常時における内部状態の説明図である。It is explanatory drawing of the internal state in the normal time of the repeater of the disaster prevention system which concerns on one embodiment of this invention. 本発明の一実施の形態に係る防災システムの中継器の電源異常時における内部状態の説明図である。It is explanatory drawing of the internal state at the time of the power supply abnormality of the repeater of the disaster prevention system which concerns on one embodiment of this invention. 本発明の一実施の形態に係る防災システムの他の態様の説明図である。It is explanatory drawing of the other aspect of the disaster prevention system which concerns on one embodiment of this invention. 本発明の一実施の形態に係る防災システムの中継器の他の態様の平常時における内部状態の説明図である。It is explanatory drawing of the internal state in the normal time of the other aspect of the repeater of the disaster prevention system which concerns on one embodiment of this invention. 本発明の一実施の形態に係る防災システムの中継器の他の態様の電源異常時における内部状態の説明図である（その１）。It is explanatory drawing of the internal state at the time of the power supply abnormality of the other aspect of the repeater of the disaster prevention system which concerns on one embodiment of this invention (the 1). 本発明の一実施の形態に係る防災システムの中継器の他の態様の電源異常時における内部状態の説明図である（その２）。It is explanatory drawing of the internal state at the time of the power supply abnormality of the other aspect of the repeater of the disaster prevention system which concerns on one embodiment of this invention (the 2). 本発明の他の実施の形態に係る防災システム全体の説明図である。It is explanatory drawing of the whole disaster prevention system which concerns on other embodiment of this invention. 本発明の他の実施の形態に係る防災システムの中継器の平常時における内部状態の説明図である。It is explanatory drawing of the internal state in the normal time of the repeater of the disaster prevention system which concerns on other embodiment of this invention. 本発明の他の実施の形態に係る防災システムの中継器の電源異常時における内部状態の説明図である。It is explanatory drawing of the internal state at the time of the power supply abnormality of the repeater of the disaster prevention system which concerns on other embodiment of this invention.

［実施の形態１］
本発明の一実施の形態に係るトンネル防災システム１は、図１に示すように、トンネル防災システム１全体を監視する防災受信盤３と、防災受信盤３と伝送線４を介してシリアルに接続された複数の中継器（最上流中継器７Ａ、上流側中継器７Ｂ、下流側中継器７Ｃ等）と、各中継器に接続された複数の端末機器としての火災検知器９とを有しており、防災受信盤３が各中継器を介して複数の火災検知器９の状態監視を行うものである。なお、図１においては、複数の中継器のうち防災受信盤３側を上流側として最上流から順に３台の中継器（最上流中継器７Ａ、上流側中継器７Ｂ、下流側中継器７Ｃ）のみを図示している。
トンネル防災システム１は、各中継器を介して接続されている火災検知器９等の端末機器毎に固有のアドレスを設定し、該アドレスを用いて各種信号の送受信を行う、いわゆるＲ型伝送方式である。
以下、上記各構成を図１及び図２に基づいて詳細に説明する。なお、図２では伝送線４を省略している。 [Embodiment 1]
As shown in FIG. 1, a tunnel disaster prevention system 1 according to an embodiment of the present invention is serially connected via a disaster prevention reception board 3 that monitors the entire tunnel disaster prevention system 1, and the disaster prevention reception board 3 and a transmission line 4. A plurality of repeaters (the most upstream repeater 7A, the upstream repeater 7B, the downstream repeater 7C, etc.), and a fire detector 9 as a plurality of terminal devices connected to each repeater. And the disaster prevention receiving board 3 monitors the state of the some fire detector 9 via each repeater. In FIG. 1, three repeaters (the most upstream repeater 7 A, the upstream repeater 7 B, and the downstream repeater 7 C) in order from the most upstream with the disaster prevention receiver 3 side as the upstream side among the plurality of repeaters. Only shown.
The tunnel disaster prevention system 1 is a so-called R-type transmission system in which a unique address is set for each terminal device such as the fire detector 9 connected via each repeater, and various signals are transmitted and received using the address. It is.
Hereafter, each said structure is demonstrated in detail based on FIG.1 and FIG.2. In FIG. 2, the transmission line 4 is omitted.

＜防災受信盤＞
防災受信盤３は、伝送線４を介して各中継器と接続されており、定期的に各中継器に対して状態収集命令を行い、各中継器は状態収集命令を受信すると、収集した状態情報を送受信部（図示なし）を介して防災受信盤に対して返信する。このとき、各中継器の電源１３の異常を検知する異常検知手段３ａと、異常検知手段３ａによって異常が検知されると、これを異常が検知された中継器のひとつ上流の中継器の制御部に通知する通知手段３ｂを備えている。
例えば、下流側中継器７Ｃの電源１３に異常が発生した場合、防災受信盤３からの状態収集命令に対し、下流側中継器７Ｃから返信がない場合（無応答の場合）、異常検知手段３ａによって無応答であることが検知され、下流側中継器７Ｃの電源が異常であると判断し、その旨が通知手段３ｂによって下流側中継器７Ｃのひとつ上流の中継器である上流側中継器７Ｂに通知される。 <Disaster prevention reception board>
The disaster prevention receiving board 3 is connected to each repeater via the transmission line 4 and periodically issues a status collection command to each repeater. When each repeater receives the status collection command, the collected status Information is returned to the disaster prevention reception board via a transmission / reception unit (not shown). At this time, when an abnormality is detected by the abnormality detection means 3a for detecting the abnormality of the power supply 13 of each repeater and the abnormality detection means 3a, this is detected as a control unit of the relay one upstream of the repeater in which the abnormality is detected. Is provided with notification means 3b.
For example, when an abnormality occurs in the power supply 13 of the downstream repeater 7C, when there is no reply from the downstream repeater 7C in response to a state collection command from the disaster prevention receiving board 3 (when there is no response), the abnormality detection means 3a Is detected as non-response, and it is determined that the power supply of the downstream repeater 7C is abnormal, and that is notified by the notification means 3b to the upstream repeater 7B which is a repeater upstream of the downstream repeater 7C. Will be notified.

＜中継器＞
中継器（最上流中継器７Ａ、上流側中継器７Ｂ、下流側中継器７Ｃ等）は、図１に示すように、トンネル内に所定間隔（例えば１００ｍ間隔）で配置されて、火災検知器９等から発信される信号を変換して中継するものである。
ある中継器において、電源１３の異常が検知された場合、異常が検知された中継器とそのひとつ上流の中継器間、つまり隣り合う（隣接する）中継器間で電源バックアップが行われるので、以下の説明では隣り合う中継器間の一例として、上流側中継器７Ｂと下流側中継器７Ｃを挙げる（図２参照）。なお、図２は、図１の最上流中継器７Ａ、上流側中継器７Ｂ、下流側中継器７Ｃのうち、上流側中継器７Ｂと下流側中継器７Ｃのみを抜き出して詳細に図示したものである。また、各中継器の構成は同様であるので、中継器の構成について主に下流側中継器７Ｃに着目して説明する。 <Repeater>
As shown in FIG. 1, the repeaters (the most upstream repeater 7A, the upstream repeater 7B, the downstream repeater 7C, etc.) are arranged at predetermined intervals (for example, at an interval of 100 m) in the tunnel, and the fire detector 9 The signal transmitted from the above is converted and relayed.
When an abnormality of the power supply 13 is detected in a certain repeater, power backup is performed between the repeater in which the abnormality is detected and the one upstream of the repeater, that is, between adjacent (adjacent) repeaters. In the description, as an example between adjacent repeaters, an upstream repeater 7B and a downstream repeater 7C are given (see FIG. 2). 2 shows only the upstream repeater 7B and the downstream repeater 7C out of the most upstream repeater 7A, the upstream repeater 7B, and the downstream repeater 7C in FIG. is there. Moreover, since the configuration of each repeater is the same, the configuration of the repeater will be described mainly focusing on the downstream-side repeater 7C.

下流側中継器７Ｃは、図２に示すように、制御盤１１と、平常時において制御盤１１に電源を供給する電源１３と、制御盤１１と電源１３との接続／非接続、制御盤１１と上流側中継器７Ｂの電源１３との接続／非接続を切り替えるスイッチング手段１５とを備えている。
下流側中継器７Ｃの各構成についてさらに詳細に説明する。 As shown in FIG. 2, the downstream side repeater 7 C includes a control panel 11, a power source 13 that supplies power to the control panel 11 in normal times, and connection / disconnection between the control panel 11 and the power source 13. And switching means 15 for switching connection / disconnection between the power supply 13 of the upstream repeater 7B.
Each configuration of the downstream side repeater 7C will be described in more detail.

≪制御盤≫
制御盤１１は、複数の火災検知器９とスイッチング手段１５が接続されており、制御部（図示なし）と送受信部（図示なし）を有している。
制御部は、送受信部を介して制御盤１１に接続された火災検知器９の状態監視を行う機能とスイッチング手段１５を制御する機能を備えている。スイッチング手段１５の制御は、防災受信盤３からの指示等に基づいて行われる。詳細な方法については後述する。 ≪Control panel≫
The control panel 11 is connected to a plurality of fire detectors 9 and switching means 15, and includes a control unit (not shown) and a transmission / reception unit (not shown).
The control unit has a function of monitoring the state of the fire detector 9 connected to the control panel 11 via the transmission / reception unit and a function of controlling the switching means 15. Control of the switching means 15 is performed based on an instruction from the disaster prevention receiving board 3 or the like. A detailed method will be described later.

≪電源≫
電源１３は、防災受信盤３と制御盤１１の間に設けられて、防災受信盤３から電源線５およびブレーカー１７を介して供給される交流電圧を直流電圧に変換して制御盤１１等に供給するものであり、この電源供給を受けて制御盤１１（制御部）が稼働している。 ≪Power≫
The power supply 13 is provided between the disaster prevention receiving board 3 and the control board 11, and converts the AC voltage supplied from the disaster prevention receiving board 3 through the power line 5 and the breaker 17 into a DC voltage to the control board 11 or the like. The control panel 11 (control unit) is in operation with this power supply.

≪スイッチング手段≫
スイッチング手段１５は、図２に示す通り、主リレー１９と副リレー２１とを備えている。
主リレー１９は、主コモン接点１９ａと主メイク接点１９ｂと主ブレイク接点１９ｃとを有しており、副リレー２１は、副コモン接点２１ａと副メイク接点２１ｂと副ブレイク接点２１ｃとを有している。
主コモン接点１９ａは制御盤１１と、主メイク接点１９ｂは電源１３と、主ブレイク接点１９ｃは副ブレイク接点２１ｃとそれぞれ接続されており、副コモン接点２１ａは上流側の中継器（下流側中継器７Ｃの場合、上流側中継器７Ｂ）の副コモン接点２１ａと、副メイク接点２１ｂは電源１３とそれぞれ接続されている。 ≪Switching means≫
As shown in FIG. 2, the switching means 15 includes a main relay 19 and a sub relay 21.
The main relay 19 has a main common contact 19a, a main make contact 19b, and a main break contact 19c, and the sub relay 21 has a sub common contact 21a, a sub make contact 21b, and a sub break contact 21c. Yes.
The main common contact 19a is connected to the control panel 11, the main make contact 19b is connected to the power source 13, and the main break contact 19c is connected to the sub break contact 21c. The sub common contact 21a is connected to the upstream repeater (downstream repeater). In the case of 7C, the sub-common contact 21a and the sub-make contact 21b of the upstream repeater 7B) are connected to the power supply 13, respectively.

主リレー１９及び副リレー２１は、制御部によってメイク状態にすることが可能になっている。
主リレー１９は、平常時においてメイク状態、すなわち主コモン接点１９ａと主メイク接点１９ｂが接続された状態になっており、制御盤１１は電源１３に接続されている。
電源１３に異常が発生して制御盤１１に電源が供給されなくなると主リレー１９はメイク状態を維持できなくなり、自動的にブレイク状態、すなわち主コモン接点１９ａと主ブレイク接点１９ｃが接続された状態となり、制御盤１１は副リレー２１に接続される。 The main relay 19 and the sub relay 21 can be put into the make state by the control unit.
The main relay 19 is in a make state, that is, a state in which the main common contact 19 a and the main make contact 19 b are connected in a normal state, and the control panel 11 is connected to the power source 13.
When an abnormality occurs in the power supply 13 and the power is not supplied to the control panel 11, the main relay 19 cannot maintain the make state, and the break state is automatically established, that is, the main common contact 19a and the main break contact 19c are connected. Thus, the control panel 11 is connected to the sub relay 21.

副リレー２１は、平常時においてブレイク状態、すなわち副コモン接点２１ａと副ブレイク接点２１ｃが接続された状態になっており、副リレー２１と主リレー１９とが接続されている。
副リレー２１がメイク状態、すなわち副コモン接点２１ａと副メイク接点２１ｂが接続された状態となると、副リレー２１と電源１３とが接続される。 The sub-relay 21 is normally in a break state, that is, a state in which the sub-common contact 21a and the sub-break contact 21c are connected, and the sub-relay 21 and the main relay 19 are connected.
When the sub relay 21 is in the make state, that is, when the sub common contact 21a and the sub make contact 21b are connected, the sub relay 21 and the power source 13 are connected.

下流側中継器７Ｃ（上流側中継器７Ｂ）は以上のような構成であるため、各中継器（上流側中継器７Ｂと下流側中継器７Ｃ）の主リレー１９及び副リレー２１のメイク／ブレイク状態を切り替えることによって、下流側中継器７Ｃにおいて、制御盤１１の電源供給元を自己（下流側中継器７Ｃ）の電源１３にするか、上流側中継器７Ｂの電源１３にするかを切り替えることができる。具体的には以下の通りである。 Since the downstream repeater 7C (upstream repeater 7B) is configured as described above, the make / break of the main relay 19 and the sub relay 21 of each repeater (upstream repeater 7B and downstream repeater 7C). By switching the state, in the downstream repeater 7C, the power supply source of the control panel 11 is switched to the power supply 13 of its own (downstream repeater 7C) or the power supply 13 of the upstream repeater 7B. Can do. Specifically, it is as follows.

下流側中継器７Ｃにおいて、制御盤１１を自己の電源１３に接続させるためには、上述したとおり、主リレー１９をメイク状態にする（図２参照）。こうすることで、下流側中継器７Ｃの制御盤１１は主リレー１９を経由して電源１３に接続される。 In the downstream repeater 7C, in order to connect the control panel 11 to its own power source 13, as described above, the main relay 19 is put into the make state (see FIG. 2). By doing so, the control panel 11 of the downstream repeater 7C is connected to the power supply 13 via the main relay 19.

下流側中継器７Ｃにおいて、制御盤１１を上流側中継器７Ｂの電源１３に接続させるためには、主リレー１９をブレイク状態、副リレー２１をブレイク状態にし、さらに上流側中継器７Ｂの副リレー２１をメイク状態にする（図３参照）。こうすることで、下流側中継器７Ｃの制御盤１１は主リレー１９、副リレー２１、上流側中継器７Ｂの副リレー２１を経由して上流側中継器７Ｂの電源１３と接続状態となる。
この場合、上流側中継器７Ｂの電源１３には、下流側中継器７Ｃの制御盤１１と上流側中継器７Ｂの制御盤１１とが接続されている。 In the downstream repeater 7C, in order to connect the control panel 11 to the power supply 13 of the upstream repeater 7B, the main relay 19 is set in the break state, the sub relay 21 is set in the break state, and the sub relay of the upstream repeater 7B is further provided. 21 is put into a makeup state (see FIG. 3). By doing so, the control panel 11 of the downstream repeater 7C is connected to the power supply 13 of the upstream repeater 7B via the main relay 19, the sub relay 21, and the auxiliary relay 21 of the upstream repeater 7B.
In this case, the control panel 11 of the downstream repeater 7C and the control panel 11 of the upstream repeater 7B are connected to the power supply 13 of the upstream repeater 7B.

なお、上記の制御盤１１の電源供給元の切り替えは、上流側中継器７Ｂ等、ひとつ上流側に中継器が存在する中継器において同様であるが、最上流中継器７Ａにおいては上流側に中継器が存在しないため、電源１３に異常が発生したときには防災受信盤３から電源の供給を受けるようになっている。具体的には、副コモン接点２１ａは防災受信盤３と接続されており、最上流中継器７Ａの電源１３に異常が発生したときには、防災受信盤３から最上流中継器７Ａの制御盤１１に主リレー１９、副リレー２１を介して電源が供給される。 Note that the switching of the power supply source of the control panel 11 is the same in the repeater having one repeater on the upstream side, such as the upstream repeater 7B, but in the most upstream repeater 7A, the relay is made upstream. Since there is no device, the power supply 13 receives power from the disaster prevention receiver 3 when an abnormality occurs in the power supply 13. Specifically, the sub-common contact 21a is connected to the disaster prevention receiving board 3, and when an abnormality occurs in the power supply 13 of the most upstream repeater 7A, the disaster prevention receiving board 3 connects to the control board 11 of the most upstream repeater 7A. Power is supplied through the main relay 19 and the sub relay 21.

＜火災検知器＞
火災検知器９は、トンネル内に所定間隔（例えば２５ｍ間隔）で配置されて、所定範囲内の炎特有の波長の光を検出することで火災を検知可能になっている。 <Fire detector>
The fire detectors 9 are arranged at predetermined intervals (for example, at intervals of 25 m) in the tunnel, and can detect a fire by detecting light having a wavelength peculiar to a flame within the predetermined range.

以上のように構成された本実施の形態に係るトンネル防災システム１を用いて、下流側中継器７Ｃにおいて、電源１３の異常発生時に制御盤１１の接続先の切替えを行う場合を例に挙げて、図１乃至図３に基づいて以下に説明する。なお、図３では伝送線４を省略している。 Using the tunnel disaster prevention system 1 according to the present embodiment configured as described above, in the downstream side repeater 7C, the connection destination of the control panel 11 is switched when an abnormality occurs in the power supply 13 as an example. This will be described below with reference to FIGS. In FIG. 3, the transmission line 4 is omitted.

平常時においては、上述したとおり、下流側中継器７Ｃにおいて制御盤１１は電源１３に接続されて電源が供給されている（図２参照）。下流側中継器７Ｃの電源１３は、防災受信盤３の異常検知手段３ａによって異常の有無が監視されている。異常検知手段３ａは、例えば、防災受信盤３からの状態収集命令に対し、下流側中継器７Ｃが無応答であることを検知して異常と判断する。 In normal times, as described above, the control panel 11 is connected to the power source 13 and supplied with power in the downstream side repeater 7C (see FIG. 2). The power supply 13 of the downstream repeater 7C is monitored for abnormality by the abnormality detection means 3a of the disaster prevention receiving board 3. For example, the abnormality detection unit 3a detects that the downstream repeater 7C is not responding to a state collection command from the disaster prevention reception board 3, and determines that there is an abnormality.

下流側中継器７Ｃにおいて電源１３に異常が発生すると、上述したとおり、主リレー１９はメイク状態を維持できなくなり自動的にブレイク状態になる。これによって、制御盤１１は、下流側中継器７Ｃの電源１３と非接続状態になるとともに、上流側中継器７Ｂの副リレー２１に接続される。なお、この時点において上流側中継器７Ｂの副リレー２１はブレイク状態である。
一方、防災受信盤３は、異常検知手段３ａによって下流側中継器７Ｃの電源１３の異常を検知し、該検知した情報に基づいて、通知手段３ｂによって上流側中継器７Ｂの制御部に下流側中継器７Ｃの電源１３に異常が発生した旨を通知する。
上流側中継器７Ｂの制御部は、上記通知に基づいて上流側中継器７Ｂの副リレー２１をメイク状態にする。
こうすることで、下流側中継器７Ｃの制御盤１１が上流側中継器７Ｂの電源１３に接続されて電源が供給される（図３参照）。 When an abnormality occurs in the power supply 13 in the downstream repeater 7C, as described above, the main relay 19 cannot maintain the make state and automatically enters the break state. As a result, the control panel 11 is disconnected from the power supply 13 of the downstream repeater 7C and is connected to the sub relay 21 of the upstream repeater 7B. At this time, the secondary relay 21 of the upstream repeater 7B is in a break state.
On the other hand, the disaster prevention reception board 3 detects the abnormality of the power supply 13 of the downstream repeater 7C by the abnormality detection means 3a, and on the downstream side to the control unit of the upstream repeater 7B by the notification means 3b based on the detected information. The power supply 13 of the repeater 7C is notified that an abnormality has occurred.
The control unit of the upstream repeater 7B sets the sub relay 21 of the upstream repeater 7B to the make state based on the notification.
By doing so, the control panel 11 of the downstream repeater 7C is connected to the power supply 13 of the upstream repeater 7B, and the power is supplied (see FIG. 3).

以上のように本実施の形態においては、下流側中継器７Ｃにおいては、自己の電源１３に異常が発生しても、制御盤１１の電源供給元を自己の電源１３から上流側中継器７Ｂの電源１３に切り替えることにより引き続き稼働して火災監視を行うことができ、火災監視できなくなる区間が生じることがない。
なお、上記では下流側中継器７Ｃにおいて電源１３に異常が発生した場合について説明したが、上流側中継器７Ｂにおいて電源１３に異常が発生した場合についても同様であり、上流側中継器７Ｂの制御盤１１は、上流側中継器７Ｂのひとつ上流の中継器である最上流中継器７Ａの電源１３に接続されることで、引き続き稼働して火災監視を行うことができる。
なお、上記では、中継器に電源異常が発生した場合には、ひとつ上流側の中継器から電源を供給する例を示したが、これに限られない。
例えば、２つの中継器をペアとし、電源異常が発生した場合には、相互に電源を供給するように構成してもよい。この場合、上記の例で上流側中継器７Ｂと下流側中継器７Ｃをペアとして、仮に上流側中継器７Ｂに電源異常が発生した場合には、下流側中継器７Ｃから電源を供給すればよい。このような構成にした場合、上流側中継器７Ｂの副コモン接点２１ａと、さらに上流側の中継器の副コモン接点２１ａを接続する電線および下流側中継器７Ｃの副コモン接点２１ａと、さらに下流側の中継器の副コモン接点２１ａを接続する電線が不要となる。 As described above, in the present embodiment, in the downstream repeater 7C, even if an abnormality occurs in the own power supply 13, the power supply source of the control panel 11 is changed from the own power supply 13 to the upstream repeater 7B. By switching to the power source 13, it is possible to continue operation and perform fire monitoring, and there is no section where fire monitoring cannot be performed.
In the above description, the case where an abnormality occurs in the power supply 13 in the downstream repeater 7C has been described. However, the same applies to the case where an abnormality occurs in the power supply 13 in the upstream repeater 7B. The board 11 is connected to the power supply 13 of the most upstream repeater 7A, which is one upstream of the upstream repeater 7B, so that it can continue to operate and perform fire monitoring.
In the above description, when a power supply abnormality occurs in a repeater, an example is shown in which power is supplied from one upstream repeater, but the present invention is not limited to this.
For example, two repeaters may be paired so that when a power supply abnormality occurs, power is supplied to each other. In this case, in the above example, if the upstream repeater 7B and the downstream repeater 7C are paired, and a power supply abnormality occurs in the upstream repeater 7B, power may be supplied from the downstream repeater 7C. . In such a configuration, the sub-common contact 21a of the upstream repeater 7B, the electric wire connecting the sub-common contact 21a of the upstream repeater and the sub-common contact 21a of the downstream repeater 7C, and further downstream The electric wire which connects the sub common contact 21a of the side repeater becomes unnecessary.

上記では、１つの中継器に制御盤と電源を１つずつ有しているものについて説明したが、中継器の構成はこれに限られず、例えば、制御盤同士のバックアップを行うために１つの中継器に２つの制御盤を有し、該制御盤毎に電源を有するものがある。
このような中継器を用いたトンネル防災システムにおいても、上述した電源バックアップ方法は適用可能である。この点について図４に基づいて説明する。 In the above description, a single repeater has one control panel and one power supply. However, the configuration of the repeater is not limited to this, and for example, one relay is used to back up the control panels. Some units have two control panels, and each control panel has a power source.
The power backup method described above can also be applied to a tunnel disaster prevention system using such a repeater. This point will be described with reference to FIG.

図４に示すトンネル防災システム２３は上述したトンネル防災システム１の変形例であり、トンネル防災システム２３は、トンネル防災システム１と同様に下流側の中継器の電源に異常が発生した場合、上流側の中継器の電源でバックアップするようにしたものである。
なお、図４においては、トンネル防災システム２３の複数の中継器のうち最上流から順に３台（最上流中継器２４Ａ、上流側中継器２４Ｂ、下流側中継器２４Ｃ）のみを図示しており、図１と同様のものには同一の符号を付しており、その説明を省略する。
このようなトンネル防災システム２３について図５に基づいてさらに詳細に説明する。なお、図５では伝送線４を省略している。 The tunnel disaster prevention system 23 shown in FIG. 4 is a modified example of the tunnel disaster prevention system 1 described above. The tunnel disaster prevention system 23 is similar to the tunnel disaster prevention system 1 in the case where an abnormality occurs in the power supply of the downstream repeater. It is made to back up with the power supply of the repeater.
In FIG. 4, only three units (the most upstream repeater 24A, the upstream repeater 24B, and the downstream repeater 24C) are illustrated in order from the most upstream among the plurality of repeaters of the tunnel disaster prevention system 23. Components similar to those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
Such a tunnel disaster prevention system 23 will be described in more detail with reference to FIG. In FIG. 5, the transmission line 4 is omitted.

図５は、図４のトンネル防災システム２３に示す複数の中継器のうち、上流側中継器２４Ｂ、下流側中継器２４Ｃを抜き出して図示したものである。図５において、図１〜図４と同様のものには同一の符号を付している。また、各中継器の構成はいずれも同様であるので、下流側中継器２４Ｃを例に挙げて説明する。 FIG. 5 shows the upstream repeater 24B and the downstream repeater 24C extracted from the plurality of repeaters shown in the tunnel disaster prevention system 23 of FIG. In FIG. 5, the same components as those in FIGS. In addition, since the configuration of each repeater is the same, the downstream repeater 24C will be described as an example.

下流側中継器２４Ｃは、図５に示すように、下流側中継器２４Ｃに接続された複数の火災検知器９のうちの一部が接続された第１制御盤２５と、残りの火災検知器９が接続された第２制御盤２７と、第１制御盤２５に電源を供給する第１電源２９と、第２制御盤２７に電源を供給する第２電源３１と、第１スイッチング手段３３と、第２スイッチング手段３９とを有している。 As shown in FIG. 5, the downstream relay 24C includes a first control panel 25 to which a part of the plurality of fire detectors 9 connected to the downstream relay 24C is connected, and the remaining fire detectors. 9, a first power supply 29 for supplying power to the first control panel 25, a second power supply 31 for supplying power to the second control panel 27, and a first switching means 33. , Second switching means 39.

第１制御盤２５と第２制御盤２７は上記のトンネル防災システム１の制御盤１１と同様であり、第１電源２９と第２電源３１は電源１３と同様であるので、これらの説明を省略する。
第１スイッチング手段３３と第２スイッチング手段３９は、スイッチング手段１５と同様に主リレー及び副リレー（第１主リレー３５及び第１副リレー３７、第２主リレー４１及び第２副リレー４３）を有しており、図５〜図７において、各リレーの各接点でスイッチング手段１５と同様ものには同様の添え字（ａ、ｂ、ｃ）を付している。なお、図６、図７では伝送線４を省略している。 The first control panel 25 and the second control panel 27 are the same as the control panel 11 of the tunnel disaster prevention system 1 described above, and the first power supply 29 and the second power supply 31 are the same as the power supply 13, so description thereof will be omitted. To do.
Similarly to the switching means 15, the first switching means 33 and the second switching means 39 are a main relay and a sub relay (a first main relay 35 and a first sub relay 37, a second main relay 41 and a second sub relay 43). In FIG. 5 to FIG. 7, the same suffixes (a, b, c) are attached to the same contacts as the switching means 15 at each contact of each relay. 6 and 7, the transmission line 4 is omitted.

下流側中継器２４Ｃにおいて、平常時は、図５に示すように、第１制御盤２５は第１電源２９に接続されて電源が供給されており、第２制御盤２７は第２電源３１に接続されて電源が供給されている。
このように、第１制御盤２５の電源系統（第１制御盤２５、第１電源２９、第１スイッチング手段３３）と第２制御盤２７の電源系統（第２制御盤２７、第２電源３１、第２スイッチング手段３９）は別系統になっており、仮に第１電源２９に異常が発生しても、第２制御盤２７の稼働に影響はなく、引き続き第２制御盤２７による監視を行うことができる。 In the downstream repeater 24 C, as shown in FIG. 5, the first control panel 25 is connected to the first power supply 29 and is supplied with power, and the second control panel 27 is connected to the second power supply 31. Connected and receiving power.
Thus, the power system of the first control panel 25 (first control panel 25, first power source 29, first switching means 33) and the power system of the second control panel 27 (second control panel 27, second power source 31). The second switching means 39) is a separate system, and even if an abnormality occurs in the first power supply 29, there is no effect on the operation of the second control panel 27, and monitoring by the second control panel 27 is continued. be able to.

電源のバックアップについても第１制御盤２５の電源系統と第２制御盤２７の電源系統とで個別に行われる。
バックアップ方法は上記のトンネル防災システム１の場合と同様である。例えば、下流側中継器２４Ｃにおいて第１電源２９に異常が発生した場合、下流側中継器２４Ｃの第１制御盤２５は上流側中継器２４Ｂの第１電源２９に接続されて電源が供給される（図６参照）。
下流側中継器２４Ｃにおいて第２電源３１に異常が発生した場合についても同様であり、下流側中継器２４Ｃの第２制御盤２７は上流側中継器２４Ｂの第２電源３１に接続されて電源が供給される。
また、仮に下流側中継器２４Ｃの内部に雨水が侵入したり、ブレーカー１７が故障したりするなどして、第１電源２９と第２電源３１の両方に異常が発生したとしても、図７に示すように、下流側中継器２４Ｃの各制御盤を上流側中継器２４Ｂの各電源にそれぞれ接続させることで対応可能である。 The power backup is also performed separately for the power system of the first control panel 25 and the power system of the second control panel 27.
The backup method is the same as that of the tunnel disaster prevention system 1 described above. For example, when an abnormality occurs in the first power supply 29 in the downstream repeater 24C, the first control panel 25 of the downstream repeater 24C is connected to the first power supply 29 of the upstream repeater 24B and supplied with power. (See FIG. 6).
The same applies to the case where an abnormality occurs in the second power supply 31 in the downstream repeater 24C, and the second control panel 27 of the downstream repeater 24C is connected to the second power supply 31 of the upstream repeater 24B so that the power is supplied. Supplied.
Furthermore, even if an abnormality occurs in both the first power supply 29 and the second power supply 31 due to rain water entering the downstream repeater 24C or the breaker 17 being broken down, FIG. As shown, each control panel of the downstream relay 24C can be connected to each power source of the upstream relay 24B.

なお、上記では電源異常発生時の制御盤と電源の組み合わせとして、下流側中継器２４Ｃの第１制御盤２５と上流側中継器２４Ｂの第１電源２９、下流側中継器２４Ｃの第２制御盤２７と上流側中継器２４Ｂの第２電源３１をそれぞれ組み合わせた例を示したが、制御盤と電源の組み合わせとしてはこれに限られない。
例えば、下流側中継器２４Ｃの第１制御盤２５と上流側中継器２４Ｂの第２電源３１、下流側中継器２４Ｃの第２制御盤２７と上流側中継器２４Ｂの第１電源２９をそれぞれ組み合わせてもよい。つまり、この場合、下流側中継器２４Ｃにおいて、第１電源２９に異常が発生した場合には第１制御盤２５を上流側中継器２４Ｂの第２電源３１に接続させ、第２電源３１に異常が発生した場合には第２制御盤２７を上流側中継器２４Ｂの第１電源２９に接続させる。 In the above description, as a combination of the control panel and the power supply when a power supply abnormality occurs, the first control panel 25 of the downstream repeater 24C, the first power supply 29 of the upstream repeater 24B, and the second control panel of the downstream repeater 24C. Although the example which combined the 2nd power supply 31 of 27 and the upstream repeater 24B was shown, the combination of a control panel and a power supply is not restricted to this.
For example, the first control panel 25 of the downstream repeater 24C and the second power supply 31 of the upstream repeater 24B, and the second control panel 27 of the downstream repeater 24C and the first power supply 29 of the upstream repeater 24B are combined. May be. That is, in this case, if an abnormality occurs in the first power supply 29 in the downstream repeater 24C, the first control panel 25 is connected to the second power supply 31 of the upstream repeater 24B, and the second power supply 31 is abnormal. If this occurs, the second control panel 27 is connected to the first power supply 29 of the upstream repeater 24B.

［実施の形態２］
上記の実施の形態１では、ある中継器（下流側中継器７Ｃ、下流側中継器２４Ｃ）の電源に異常が発生した場合にそのひとつ上流側の中継器（上流側中継器７Ｂ、上流側中継器２４Ｂ）の電源でバックアップするようにしたものを示したが、電源のバックアップ方法はこれに限らない。
例えば、中継器の内部に２つの電源を有する点はトンネル防災システム２３と変わらないが、他の中継器の電源でバックアップを行うのではなく、中継器内部の電源同士でバックアップを行うようにしてもよい。
このようなバックアップ方法を実現するための構成の一例として、トンネル防災システム２３の変形例であるトンネル防災システム４５を図８に示す。
なお、図８においては、トンネル防災システム４５の複数の中継器のうち最上流から順に３台（最上流中継器４６Ａ、上流側中継器４６Ｂ、下流側中継器４６Ｃ）のみを図示しており、図１及び図４と同様のものには同一の符号を付している。また、各中継器はいずれも同様の構成であるので、以下の説明では下流側中継器４６Ｃを例に挙げる。 [Embodiment 2]
In the first embodiment, when an abnormality occurs in the power supply of a certain repeater (downstream repeater 7C, downstream repeater 24C), one upstream repeater (upstream repeater 7B, upstream repeater) is detected. Although the backup is performed with the power source of the device 24B), the power source backup method is not limited to this.
For example, the point of having two power supplies inside the repeater is the same as the tunnel disaster prevention system 23, but backup is performed between the power supplies inside the repeater instead of performing backup with the power supply of another repeater. Also good.
As an example of a configuration for realizing such a backup method, a tunnel disaster prevention system 45 which is a modification of the tunnel disaster prevention system 23 is shown in FIG.
In FIG. 8, only three units (the most upstream repeater 46A, the upstream repeater 46B, and the downstream repeater 46C) are illustrated in order from the most upstream among the plurality of repeaters of the tunnel disaster prevention system 45. Components similar to those in FIGS. 1 and 4 are denoted by the same reference numerals. Since each repeater has the same configuration, the downstream repeater 46C is taken as an example in the following description.

下流側中継器４６Ｃは図８に示すように、第１電源２９と第２電源３１を有しており、いずれかの電源に異常が発生した場合に他方の電源でバックアップするようにしたものである。このようなバックアップ方法を実現するために、下流側中継器４６Ｃの各スイッチング手段（第１スイッチング手段４７、第２スイッチング手段４９）は、上記のトンネル防災システム２３の中継器（下流側中継器２４Ｃ等）の各スイッチング手段（第１スイッチング手段３３、第２スイッチング手段３９）と、接続先の一部が以下に記載の点において異なる。以下に、これらの相違点について図９に基づいて説明する。なお、図９は、図８に示す中継器のうち下流側中継器４６Ｃを抜き出してより詳細に図示したものであり、図１〜図８と同様のものには同一の符号を付しており、その説明を省略する。また、図９では伝送線４を省略している。 As shown in FIG. 8, the downstream repeater 46C has a first power supply 29 and a second power supply 31, and when an abnormality occurs in one of the power supplies, the other power supply backs up. is there. In order to realize such a backup method, each switching unit (first switching unit 47, second switching unit 49) of the downstream relay unit 46C is connected to the relay unit (downstream relay unit 24C of the tunnel disaster prevention system 23). Etc.) are different from the respective switching means (first switching means 33, second switching means 39) in the following points. Below, these differences are demonstrated based on FIG. 9 shows the downstream repeater 46C extracted from the repeater shown in FIG. 8 in more detail, and the same components as those in FIGS. 1 to 8 are given the same reference numerals. The description is omitted. In FIG. 9, the transmission line 4 is omitted.

第１主リレー３５の第１主ブレイク接点３５ｃは、第１副リレー３７の第１ブレイク接点３７ｃと接続されている。
第１副リレー３７の第１副コモン接点３７ａは、第２副リレー４３の第２副コモン接点４３ａと接続されている。
第２主リレー４１の第２主ブレイク接点４１ｃは、第２副リレー４３の第２副ブレイク接点４３ｃと接続されている。
各リレーのその他の接点の接続先は、トンネル防災システム２３の各スイッチング手段（第１スイッチング手段３３、第２スイッチング手段３９）と同様である。 The first main break contact 35 c of the first main relay 35 is connected to the first break contact 37 c of the first sub relay 37.
The first sub common contact 37 a of the first sub relay 37 is connected to the second sub common contact 43 a of the second sub relay 43.
The second main break contact 41 c of the second main relay 41 is connected to the second sub break contact 43 c of the second sub relay 43.
The connection destinations of the other contacts of each relay are the same as the switching means (the first switching means 33 and the second switching means 39) of the tunnel disaster prevention system 23.

上記のように構成されたトンネル防災システム４５において、下流側中継器４６Ｃの第１電源２９に異常が発生した場合を例に挙げて、バックアップ方法について図９及び図１０に基づいて説明する。なお、図１０では伝送線４を省略している。
平常時は、図９に示すように、下流側中継器４６Ｃの第１制御盤２５は第１電源２９に接続され、第２制御盤２７は第２電源３１に接続されて、それぞれ電源が供給されている。 In the tunnel disaster prevention system 45 configured as described above, a backup method will be described based on FIGS. 9 and 10 by taking as an example a case where an abnormality has occurred in the first power supply 29 of the downstream repeater 46C. In FIG. 10, the transmission line 4 is omitted.
In normal operation, as shown in FIG. 9, the first control panel 25 of the downstream repeater 46C is connected to the first power source 29, and the second control panel 27 is connected to the second power source 31 to supply power. Has been.

この状態で下流側中継器４６Ｃの第１電源２９に異常が発生したとすると、下流側中継器４６Ｃにおいて、第１主リレー３５をメイク状態に維持できなくなり、自動的にブレイク状態となる。これによって、第１制御盤２５は、第１電源２９と非接続状態になるとともに、第１副リレー３７を経由して第２副リレー４３に接続される。なお、この時点において第２副リレー４３はブレイク状態である。 If an abnormality occurs in the first power supply 29 of the downstream repeater 46C in this state, the first main relay 35 cannot be maintained in the make state in the downstream repeater 46C, and the break state is automatically entered. As a result, the first control panel 25 is disconnected from the first power source 29 and is connected to the second sub relay 43 via the first sub relay 37. At this time, the second sub relay 43 is in a break state.

一方、防災受信盤３は、異常検知手段３ａによって下流側中継器４６Ｃの第１電源２９の異常を検知し、該検知した情報に基づいて、通知手段３ｂによって下流側中継器４６Ｃの第２制御盤２７に、第１電源２９に異常が発生した旨を通知する。
第２制御盤２７は、上記通知に基づいて第２副リレー４３をメイク状態にする。
このようにして、図１０に示すように、第１制御盤２５は、第１主リレー３５、第１副リレー３７、第２副リレー４３を経由して第２電源３１に接続されて電源が供給される。 On the other hand, the disaster prevention receiving board 3 detects the abnormality of the first power supply 29 of the downstream repeater 46C by the abnormality detection means 3a, and based on the detected information, the second control of the downstream repeater 46C by the notification means 3b. The panel 27 is notified that an abnormality has occurred in the first power source 29.
The second control panel 27 puts the second sub relay 43 in the make state based on the notification.
In this way, as shown in FIG. 10, the first control panel 25 is connected to the second power source 31 via the first main relay 35, the first sub relay 37, and the second sub relay 43, and the power is supplied. Supplied.

以上のように本実施の形態においては、下流側中継器４６Ｃにおいて第１電源２９に異常が発生しても第１制御盤２５の電源供給元を第１電源２９から第２電源３１に切り替えることにより、引き続き稼働して火災監視を行うことができ、火災監視できなくなる区間が生じることがない。 As described above, in the present embodiment, even if an abnormality occurs in the first power supply 29 in the downstream relay 46C, the power supply source of the first control panel 25 is switched from the first power supply 29 to the second power supply 31. Therefore, it is possible to continue to operate and monitor the fire, and there is no section where the fire cannot be monitored.

なお、上記では第１電源２９に異常が発生した場合について説明したが、第２電源３１に異常が発生した場合についても同様であり、第２制御盤２７が第１電源２９に接続されることで引き続き稼働して火災監視を行うことができる。
上記ではバックアップ方法について下流側中継器４６Ｃを例に挙げて説明したが、他の中継器（例えば最上流中継器４６Ａ、上流側中継器４６Ｂ）においても同様である。 Although the case where an abnormality has occurred in the first power supply 29 has been described above, the same applies to the case where an abnormality has occurred in the second power supply 31, and the second control panel 27 is connected to the first power supply 29. Can continue to operate and monitor the fire.
The backup method has been described above by taking the downstream repeater 46C as an example, but the same applies to other repeaters (for example, the most upstream repeater 46A and the upstream repeater 46B).

なお、上記実施の形態１及び実施の形態２の説明では、各制御盤に接続される機器として火災検知器を例に挙げているが、各制御盤に接続される機器は火災検知器のみに限定されるものではなく、例えば信号変換器などを接続してもよい。 In the description of the first embodiment and the second embodiment, the fire detector is exemplified as the device connected to each control panel, but the device connected to each control panel is only the fire detector. For example, a signal converter may be connected.

１トンネル防災システム（実施の形態１）
３防災受信盤
３ａ異常検知手段
３ｂ通知手段
４伝送線
５電源線
７Ａ最上流中継器
７Ｂ上流側中継器
７Ｃ下流側中継器
９火災検知器
１１制御盤
１３電源
１５スイッチング手段
１７ブレーカー
１９主リレー
１９ａ主コモン接点
１９ｂ主メイク接点
１９ｃ主ブレイク接点
２１副リレー
２１ａ副コモン接点
２１ｂ副メイク接点
２１ｃ副ブレイク接点
２３トンネル防災システム（他の態様）
２４Ａ最上流中継器
２４Ｂ上流側中継器
２４Ｃ下流側中継器
２５第１制御盤
２７第２制御盤
２９第１電源
３１第２電源
３３第１スイッチング手段
３５第１主リレー
３５ａ第１主コモン接点
３５ｂ第１主メイク接点
３５ｃ第１主ブレイク接点
３７第１副リレー
３７ａ第１副コモン接点
３７ｂ第１副メイク接点
３７ｃ第１副ブレイク接点
３９第２スイッチング手段
４１第２主リレー
４１ａ第２主コモン接点
４１ｂ第２主メイク接点
４１ｃ第２主ブレイク接点
４３第２副リレー
４３ａ第２副コモン接点
４３ｂ第２副メイク接点
４３ｃ第２副ブレイク接点
４５トンネル防災システム（実施の形態２）
４６Ａ最上流中継器
４６Ｂ上流側中継器
４６Ｃ下流側中継器
４７第１スイッチング手段
４９第２スイッチング手段 1 Tunnel disaster prevention system (Embodiment 1)
DESCRIPTION OF SYMBOLS 3 Disaster prevention receiving board 3a Abnormality detection means 3b Notification means 4 Transmission line 5 Power supply line 7A Top stream repeater 7B Upstream repeater 7C Downstream repeater 9 Fire detector 11 Control panel 13 Power supply 15 Switching means 17 Breaker 19 Main relay 19a Main common contact 19b Main make contact 19c Main break contact 21 Sub relay 21a Sub common contact 21b Sub make contact 21c Sub break contact 23 Tunnel disaster prevention system (other modes)
24A Uppermost stream repeater 24B Upstream repeater 24C Downstream repeater 25 First control panel 27 Second control panel 29 First power source 31 Second power source 33 First switching means 35 First main relay 35a First main common contact 35b First main make contact 35c First main break contact 37 First sub relay 37a First sub common contact 37b First sub make contact 37c First sub break contact 39 Second switching means 41 Second main relay 41a Second main common contact 41b Second Main Make Contact 41c Second Main Break Contact 43 Second Sub Relay 43a Second Sub Common Contact 43b Second Sub Make Contact 43c Second Sub Break Contact 45 Tunnel Disaster Prevention System (Embodiment 2)
46A Most upstream repeater 46B Upstream repeater 46C Downstream repeater 47 First switching means 49 Second switching means

Claims

A disaster prevention receiving board; a plurality of repeaters connected to the disaster prevention receiving board via transmission lines; and a plurality of terminal devices connected to the respective repeaters; A tunnel disaster prevention system for monitoring the state of the plurality of terminal devices via a vessel,
Each repeater is
A control unit that monitors the state of the plurality of part or all of the terminal devices, a power source that supplies power to the control unit in a normal state, connection / disconnection of the control unit and the power source, and the control unit Switching means for switching connection / disconnection with the power supply of another adjacent repeater,
In normal times,
The switching means connects the control unit and the power source in a connected state, and disconnects the power source of the control unit and the other adjacent repeater,
When an abnormality occurs in the power supply,
The said switching means makes the said control part and the said power supply a non-connection state, and makes the power supply of the said control part and the said other adjacent repeater a connection state, The tunnel disaster prevention system characterized by the above-mentioned.

The disaster prevention receiving board includes an abnormality detection means for detecting an abnormality of the power source, and a notification means for notifying the control unit of the other adjacent repeater when an abnormality is detected by the abnormality detection means,
When an abnormality occurs in the power supply,
The disaster prevention receiving board notifies the controller of the other adjacent repeater that an abnormality has occurred in the power source,
Based on the notification from the disaster prevention reception board, the control unit of the other adjacent repeater places the control unit of the repeater in which an abnormality has occurred in the power supply and the power supply of the other adjacent repeater in a connected state. 2. The tunnel disaster prevention system according to claim 1, wherein switching means of the other adjacent repeater is controlled as described above.

A disaster prevention receiving board; a plurality of repeaters connected to the disaster prevention receiving board via transmission lines; and a plurality of terminal devices connected to the respective repeaters; A tunnel disaster prevention system for monitoring the state of the plurality of terminal devices via a vessel,
Each repeater is
A plurality of control units that monitor the status of the terminal device, a plurality of power supplies that supply power to the control units of the plurality of control units in normal times, and a power supply to the control units and the control units Switching means for switching connection / disconnection with each power source, switching between connection / disconnection with each power source of the other repeater adjacent to each control unit,
In normal times,
The switching means connects each power source to each control unit and each power source, and disconnects each power source from each control unit and the other adjacent relay,
When an abnormality occurs in any of the power sources,
The switching unit disconnects the power source in which the abnormality has occurred and the control unit that has been supplied with power from the power source, and the control unit that has received power supply from the power source in which the abnormality has occurred A tunnel disaster prevention system characterized in that one of the power supplies of other adjacent repeaters is connected.

The disaster prevention receiving board includes an abnormality detection means for detecting an abnormality of each power source, and a notification means for notifying the controller of another adjacent repeater when an abnormality is detected by the abnormality detection means. ,
When an abnormality occurs in any of the power supplies,
The disaster prevention receiving board notifies the controller of the other adjacent repeater that an abnormality has occurred in the power source,
The control unit of the other adjacent repeater that has received the notification from the disaster prevention reception board is based on the notification of the disaster prevention reception board and the control unit that has been supplied with power from the power source in which the abnormality has occurred 4. The tunnel disaster prevention system according to claim 3, wherein switching means of the other adjacent repeater is controlled so that the power supply of the repeater is connected.

The switching means includes a main relay and a sub relay,
The main relay has a main common contact, a main make contact, and a main break contact,
The sub-relay has a sub-common contact, a sub-make contact, and a sub-break contact,
The main common contact is connected to the control unit, the main make contact is connected to the power source, and the main break contact is connected to the sub-break contact.
5. The tunnel disaster prevention system according to claim 1, wherein the sub-common contact is connected to a sub-common contact of the other adjacent repeater, and the sub-make contact is connected to the power source.

The tunnel disaster prevention system according to any one of claims 1 to 5, wherein the other adjacent repeater is the repeater adjacent to one upstream side.

A disaster prevention receiving board; a plurality of repeaters connected to the disaster prevention receiving board via transmission lines; and a plurality of terminal devices connected to the respective repeaters; A tunnel disaster prevention system for monitoring the state of the plurality of terminal devices via a vessel,
Each repeater is
A first control unit that monitors the status of some of the terminal devices, a second control unit that monitors the status of terminal devices other than the status of the first control unit, A first power source for supplying power to the first control unit at a time, a second power source for supplying power to the second control unit at a normal time, the first control unit, the first power source, and the second power source Switching means for switching connection / disconnection between the second control unit and the second power source and the first power source,
In normal times,
The switching means connects the first control unit and the first power source, disconnects the connection between the first control unit and the second power source, and disconnects the second control unit and the first power source. Two power supplies are connected and the second control unit and the first power supply are disconnected.
When an abnormality occurs in the first power source,
The switching means disconnects the first control unit and the first power source, and connects the first control unit and the second power source,
When an abnormality occurs in the second power source,
The said switching means makes the said 2nd control part and the said 2nd power supply a non-connection state, and makes the said 2nd control part and the said 1st power supply a connection state, The tunnel disaster prevention system characterized by the above-mentioned.

The disaster prevention receiving board includes an abnormality detection means for detecting an abnormality in the first power supply and the second power supply, and when the abnormality is detected by the abnormality detection means, the first control section or the second control section A notification means for notifying a control unit receiving power supply from a power source in which no abnormality has occurred,
When an abnormality occurs in the first power source,
The disaster prevention reception board notifies the second control unit that an abnormality has occurred in the first power supply,
The second control unit that has received the notification controls the switching means to bring the first control unit and the second power source into a connected state based on the notification of the disaster prevention reception board,
When an abnormality occurs in the second power source,
The disaster prevention reception board notifies the first control unit that an abnormality has occurred in the second power source,
8. The tunnel disaster prevention according to claim 7 , wherein the first control unit controls the switching unit to connect the second control unit and the first power source based on a notification from the disaster prevention reception board. system.

The switching means includes a first main relay and a first sub relay, a second main relay and a second sub relay,
The first main relay has a first main common contact, a first main make contact, and a first main break contact;
The first sub relay has a first sub common contact, a first sub make contact, and a first sub break contact,
The second main relay has a second main common contact, a second main make contact, and a second main break contact,
The second sub relay has a second sub common contact, a second sub make contact, and a second sub break contact,
The first main common contact is connected to the first control unit, the first main make contact is connected to the first power source, and the first main break contact is connected to the first sub-break contact;
The first sub-common contact is connected to the second sub-common contact, and the first sub-make contact is connected to the first power source;
The second main common contact is connected to the second control unit, the second main make contact is connected to the second power source, and the second main break contact is connected to the second sub-break contact;
The tunnel disaster prevention system according to claim 7 or 8 , wherein the second sub-make contact is connected to the second power source.