JP5836853B2 - Monitoring system and maintenance method using the same - Google Patents

Monitoring system and maintenance method using the same Download PDF

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JP5836853B2
JP5836853B2 JP2012058180A JP2012058180A JP5836853B2 JP 5836853 B2 JP5836853 B2 JP 5836853B2 JP 2012058180 A JP2012058180 A JP 2012058180A JP 2012058180 A JP2012058180 A JP 2012058180A JP 5836853 B2 JP5836853 B2 JP 5836853B2
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憲昭 岡本
憲昭 岡本
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Fujitsu Telecom Networks Ltd
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Description

本発明は、監視システム及びこれを用いる保守方法に関する。   The present invention relates to a monitoring system and a maintenance method using the same.

無人局に設けた二重化構造の監視制御装置と有人局に設けた二重化構造の監視制御装置とを二重化構造のデータ通信網（専用線）で個別に接続して無人局の監視を行うようにした監視システムを図５に示す。   Monitored unmanned stations by connecting the redundant control and control devices installed in the unmanned stations and the redundant control and control devices installed in the manned stations with the data communication network (dedicated line) of the duplex structure. A monitoring system is shown in FIG.

無人局２に設けた二重化構造の監視制御装置２Ａ，２Ｂは、同等の監視機能を備え、一方の監視制御装置、例えば第１監視制御装置２Ａを運用系として、また他方の監視制御装置、例えば第２監視制御装置２Ｂを待機系として動作しており、被監視機器から同じ状態信号を入力して処理することで監視情報を出力する。
有人局３に設けた二重化構造の監視制御装置３Ａ，３Ｂは、同等の監視機能を備え、一方の監視制御装置、例えば第１監視制御装置３Ａを運用系として、また他方の監視制御装置、例えば第２監視制御装置３Ｂを待機系として動作している。 The redundant control devices 2A and 2B provided in the unmanned station 2 have equivalent monitoring functions, and one monitoring control device, for example, the first monitoring control device 2A is used as an active system, and the other monitoring control device, for example, The second monitoring control device 2B operates as a standby system, and outputs monitoring information by inputting and processing the same status signal from the monitored device.
The supervisory control devices 3A and 3B having a duplex structure provided in the manned station 3 have equivalent monitoring functions, and one supervisory control device, for example, the first supervisory control device 3A is used as an active system, and the other supervisory control device, for example, The second monitoring control device 3B operates as a standby system.

運用系で動作する監視制御装置２Ａ，３Ａ同士は、第１のデータ伝送網（専用線）６Ａを使用して前記監視情報の通信を行い、また待機系で動作する監視制御装置２Ｂ，３Ｂ同士は、第２のデータ伝送網（専用線）６Ｂを使用して前記監視情報の通信を行う。そして、待機系の監視制御装置２Ｂ，３Ｂでは、第２のデータ伝送網６Ｂを介して受信する監視情報の破棄を行って、通常は運用系で通信する監視情報を利用している。無人局２の第１及び第２監視制御装置２Ａ、２Ｂ同士、及び有人局３の監視制御装置３Ａ，３Ｂ同士は、伝送路４，５により接続されており、待機系が運用系を監視して異常・障害を検出することで系切換を行う。   The monitoring control devices 2A and 3A that operate in the active system communicate with each other using the first data transmission network (private line) 6A, and the monitoring control devices 2B and 3B that operate in the standby system. Performs communication of the monitoring information using a second data transmission network (private line) 6B. The standby monitoring control devices 2B and 3B discard the monitoring information received via the second data transmission network 6B and normally use the monitoring information communicated in the active system. The first and second supervisory control devices 2A and 2B of the unmanned station 2 and the supervisory control devices 3A and 3B of the manned station 3 are connected by transmission lines 4 and 5, and the standby system monitors the active system. The system is switched by detecting abnormalities and faults.

直ぐに入局困難な無人局２の監視制御装置２Ａ，２Ｂの設定情報（テーブル）変更や履歴情報収集等の遠隔保守作業においては、保守コンソール８を有人局３の監視制御装置３Ａ，３Ｂに接続し、有人局３から無人局２の監視制御装置２Ａ，２Ｂにデータ伝送網６Ａ，６Ｂを使用してデータ接続する必要がある。   For remote maintenance operations such as changing the setting information (table) of the unmanned station 2 and the collecting of history information of the unmanned station 2 that are difficult to enter immediately, the maintenance console 8 is connected to the monitoring control apparatuses 3A and 3B of the manned station 3 It is necessary to connect data from the manned station 3 to the monitoring control devices 2A and 2B of the unmanned station 2 using the data transmission networks 6A and 6B.

しかし、有人局３と無人局２との監視制御装置２Ａ，２Ｂ、３Ａ，３Ｂ間では、モデム等により監視情報をＨＤＬＣ（High-level Data Link Control procedure）等のデータ伝送制御手順によりパケットデータ伝送を行なっている。よって、この間のデータ伝送網６Ａ，６Ｂは、伝送速度の制限により保守用情報まで送受するのは困難である。そこで、別の電話回線７を使用して保守コンソール８と無人局２の監視制御装置２Ａ，２Ｂとを接続して遠隔保守を行っていた。   However, between the supervisory control devices 2A, 2B, 3A, and 3B between the manned station 3 and the unmanned station 2, the monitoring information is transmitted through the data transmission control procedure such as HDLC (High-level Data Link Control procedure) using a modem or the like. Is doing. Therefore, it is difficult for the data transmission networks 6A and 6B during this period to transmit and receive the maintenance information due to the limitation of the transmission speed. Therefore, remote maintenance is performed by connecting the maintenance console 8 and the monitoring control devices 2A and 2B of the unmanned station 2 using another telephone line 7.

ところで、保守対象装置とリモート保守センタ間を公衆回線で接続したリモート保守方式において、保守対象装置と２ヶ所のリモート保守センタ間との通信を同時に行う通信手段と、リモート保守を継続しながら切断された回線の再接続を行う手段と、を備えたリモート保守回線の二重化方式が知られている（特許文献１）。   By the way, in the remote maintenance method in which the maintenance target device and the remote maintenance center are connected by a public line, the communication means for simultaneously performing communication between the maintenance target device and the two remote maintenance centers is disconnected while continuing the remote maintenance. There is known a remote maintenance line duplex system including a means for performing reconnection of a line (Patent Document 1).

特開平１０−３１２３１７号公報JP-A-10-312317

しかしながら、前述したように、入局が困難な無人局２の遠隔保守を行なう場合、電話回線７を、データ伝送網６Ａ，６Ｂ以外に別途準備しなければならず、設備費用が嵩む。また、特許文献１に記載の発明では、回線障害対策として保守回線を二重化しているため、設備費用がさらに嵩む。そこで、監視情報のデータ通信に影響を与えないように保守用情報をデータ通信することが望まれている。   However, as described above, when performing remote maintenance of the unmanned station 2 that is difficult to enter, the telephone line 7 must be separately prepared in addition to the data transmission networks 6A and 6B, which increases equipment costs. Further, in the invention described in Patent Document 1, since the maintenance line is doubled as a countermeasure against the line failure, the equipment cost is further increased. Therefore, it is desired to perform data communication of maintenance information so as not to affect monitoring information data communication.

本発明は、監視制御装置が送受する監視情報の通信に影響を与えないように保守用情報を通信することができるように工夫した監視システムを提供することを目的とする。   An object of the present invention is to provide a monitoring system devised so that maintenance information can be communicated so as not to affect communication of monitoring information transmitted and received by a monitoring control device.

本発明を例示する監視システムの一態様は、無人局に設けられており、第１被監視機器から監視情報を取得して第１被監視機器を監視し、何れか一方を運用系として、他方を待機系として動作する二重化構造の監視制御装置と、有人局に設けられており、無人局に設けた監視制御装置から第１被監視機器の監視情報を取得して第１被監視機器を監視し、何れか一方を運用系として、他方を待機系として動作する二重化構造の監視制御装置と、無人局と有人局とに設けた運用系で動作する監視制御装置同士が第１被監視機器の監視情報の通信を行う第１パケット通信網と、無人局と有人局とに設けた待機系で動作する監視制御装置同士が第１被監視機器の監視情報の通信を行う第２パケット通信網と、有人局に設けた待機系で動作する監視制御装置に接続され、第１及び第２パケット通信網のうち第２パケット通信網のみを利用してこの監視制御装置と無人局に設けた待機系で動作する監視制御装置との間で保守用情報の通信を行う保守用端末と、を備えたものである。 One aspect of a monitoring system illustrating the present invention is provided in an unmanned station, acquires monitoring information from a first monitored device, monitors the first monitored device, and sets one of them as an operating system , The monitoring control device with a redundant structure that operates as a standby system and the manned station, monitors the first monitored device by obtaining the monitoring information of the first monitored device from the monitoring control device provided in the unmanned station and, as one of the active system and the other a monitoring control device of the dual structure which operates as a standby system, the monitoring control device between operating in the active system provided in the unmanned station and manned station is first monitored device A first packet communication network that communicates monitoring information, and a second packet communication network in which monitoring control devices operating in a standby system provided in the unmanned station and the manned station communicate the monitoring information of the first monitored device Monitoring control that operates in a standby system provided in a manned station It is connected to the location, for maintenance between the monitoring controller using only the second packet communication network among the first and second packet communication network operating in the monitoring control unit and the standby system provided unmanned station And a maintenance terminal for communicating information.

本発明では、運用系で動作する監視制御装置が使用する第１パケット通信網ではなく、待機系で動作する監視制御装置が使用する第２パケット通信網を利用して保守用情報の通信を行うため監視情報の通信に影響を与えることはない。   In the present invention, communication of maintenance information is performed using the second packet communication network used by the monitoring control device operating in the standby system, not the first packet communication network used by the monitoring control device operating in the active system. Therefore, it does not affect the monitoring information communication.

本発明の監視システムの概略を示す説明図である。It is explanatory drawing which shows the outline of the monitoring system of this invention. 監視制御装置の概略を示すブロック図である。It is a block diagram which shows the outline of a monitoring control apparatus. 待機系で動作する監視制御装置の異常・障害検出時の動作手順を示すフローチャートである。It is a flowchart which shows the operation | movement procedure at the time of abnormality / failure detection of the monitoring control apparatus which operate | moves by a standby system. 無人局の待機系で動作する監視制御装置の保守手順を示すフローチャートである。It is a flowchart which shows the maintenance procedure of the monitoring control apparatus which operate | moves in the standby system of an unattended station. 従来技術で説明した監視システムの概略を示す説明図である。It is explanatory drawing which shows the outline of the monitoring system demonstrated by the prior art.

監視システム１０は、図１に示すように、無人局１１に設けた二重化構造の第1及び第２監視制御装置１２，１３と、有人局１４に設けた二重構造の第１及び第２監視制御装置１５，１６とを、二重化構造の第１及び第２パケット通信網１７，１８でそれぞれ接続して構成されている。   As shown in FIG. 1, the monitoring system 10 includes first and second monitoring controllers 12 and 13 having a duplex structure provided in the unmanned station 11 and first and second monitoring having a duplex structure provided in the manned station 14. The control devices 15 and 16 are connected to each other by first and second packet communication networks 17 and 18 having a duplex structure.

無人局１１の監視制御装置１２，１３は、それぞれ同等の監視機能を有し、二重化されている一方が運用系として、また他方が待機系として互いに同期して動作する。有人局１４の監視制御装置１５，１６は、それぞれ同等の監視機能を有し、二重化されている一方が運用系として、また他方が待機系として互いに同期して動作する。無人局１１と有人局１４との監視制御装置１２，１３，１５，１６は、運用系で動作する時に第１パケット通信網１７を使用し、また、待機系で動作する時には第２パケット通信網１８を使用する。
無人局１１の各監視制御装置１２，１３は、例えばプラントに設けた複数の配電盤（以下「第１被監視機器」と称す）とネットワークで接続されており、第１被監視機器との間で個別入出力データ（監視情報）の通信を行うことで第１被監視機器の稼働、及び運転の状況を監視する。 The monitoring control devices 12 and 13 of the unmanned station 11 have the same monitoring function, and operate in synchronization with each other as one operating system and the other as a standby system. The monitoring control devices 15 and 16 of the manned station 14 have the same monitoring function, and operate in synchronization with each other as one operating system and the other as a standby system. The supervisory control devices 12, 13, 15, 16 of the unmanned station 11 and the manned station 14 use the first packet communication network 17 when operating in the active system, and the second packet communication network when operating in the standby system. 18 is used.
Each of the monitoring control devices 12 and 13 of the unmanned station 11 is connected to, for example, a plurality of switchboards (hereinafter referred to as “first monitored devices”) provided in the plant, and is connected to the first monitored devices. The operation of the first monitored device and the status of operation are monitored by communicating individual input / output data (monitoring information).

また、無人局１１の各監視制御装置１２，１３は、専用の伝送路１９で接続されている。このうち待機系で動作する監視制御装置１３は、運用系で動作する監視制御装置１２の運用状況を監視し、この運用状況の判定に基づいて運用系と待機系との系切換を制御する。また、詳しくは後述する有人局１４の監視制御装置１５，１６から得られる系切換データを受け取ることに応答して監視制御装置１２，１３の系切換も制御する。   The monitoring control devices 12 and 13 of the unmanned station 11 are connected by a dedicated transmission line 19. Among these, the monitoring control device 13 operating in the standby system monitors the operation status of the monitoring control device 12 operating in the active system, and controls system switching between the active system and the standby system based on the determination of the operating status. In addition, in response to receiving system switching data obtained from the supervisory control devices 15 and 16 of the manned station 14 described later in detail, the system switching of the supervisory control devices 12 and 13 is also controlled.

有人局１４の各監視制御装置１５，１６は、前記無人局１１が監視するものとは別のプラントに設けた配電盤（以下「第２被監視機器」）とネットワークで接続されており、第２被監視機器との間で個別入出力データ（監視情報）の通信を行うことで第２被監視機器の稼働、及び運転の状況を個別に監視する。また、有人局１４の監視制御装置１５，１６は、第１被監視機器から得られる個別入出力データを、無人局１１の監視制御装置１２，１３を介して受信して、第１被監視機器を監視する。さらに、有人局１４の監視制御装置１５，１６は、上位装置とネットワークで接続されており、第１及び第２被監視機器から得られる個別入出力データを上位装置に送信する。   The monitoring control devices 15 and 16 of the manned station 14 are connected to a switchboard (hereinafter referred to as “second monitored device”) provided in a plant different from that monitored by the unmanned station 11 through a network. The operation of the second monitored device and the status of operation are individually monitored by communicating individual input / output data (monitoring information) with the monitored device. In addition, the monitoring control devices 15 and 16 of the manned station 14 receive the individual input / output data obtained from the first monitored device via the monitoring control devices 12 and 13 of the unmanned station 11 and receive the first monitored device. To monitor. Furthermore, the monitoring control devices 15 and 16 of the manned station 14 are connected to the host device via a network, and transmit individual input / output data obtained from the first and second monitored devices to the host device.

有人局１４の各監視制御装置１５，１６同士は、専用の伝送路２０で接続されている。このうち待機系で動作する監視制御装置１６は、運用系で動作する監視制御装置１５の運用状況を監視し、この運用状況の判定に基づいて運用系と待機系との系切換を制御するとともに、無人局１１側の待機系で動作する監視制御装置１３から得られる系切換情報を受け取ることに応答して前記系切換を制御する。   The monitoring control devices 15 and 16 of the manned station 14 are connected by a dedicated transmission path 20. Among these, the monitoring control device 16 operating in the standby system monitors the operation status of the monitoring control device 15 operating in the active system, and controls system switching between the active system and the standby system based on the determination of the operating status. The system switching is controlled in response to receiving the system switching information obtained from the supervisory control device 13 operating in the standby system on the unmanned station 11 side.

なお、有人局１４の監視制御装置１５，１６は、第２被監視機器から得られる個別入出力データを無人局１１の監視制御装置１２，１３に送信する場合もある。そして、監視制御装置１２，１３，１５，１６は、待機系で動作する時に、対局の監視制御装置からパケット通信網を介して受信する個別入出力データを破棄する手段を有する。   Note that the monitoring control devices 15 and 16 of the manned station 14 may transmit individual input / output data obtained from the second monitored device to the monitoring control devices 12 and 13 of the unmanned station 11. The monitoring control devices 12, 13, 15, and 16 have means for discarding individual input / output data received from the game monitoring control device via the packet communication network when operating in the standby system.

無人局１１の監視制御装置１２，１３の保守、例えば設定情報（テーブル）変更や履歴情報収集等の保守を遠隔地から行う場合には、保守コンソール（保守用端末）２１を有人局１４の待機系で動作する第２監視制御装置１６に接続し、第２パケット通信網１８を使用して無人局１１の待機系で動作する第２監視制御装置１３の保守を行う。   When performing maintenance of the monitoring control devices 12 and 13 of the unmanned station 11 such as setting information (table) change and history information collection from a remote location, the maintenance console (maintenance terminal) 21 is placed on standby of the manned station 14. The second monitoring control device 16 operating in the system is connected to the second monitoring control device 16, and the second monitoring control device 13 operating in the standby system of the unmanned station 11 is maintained using the second packet communication network 18.

監視制御装置１２，１３，１５，１６は、全て同じ構成になっている。例えば無人局の第１監視制御装置１２は、図２に示すように、基本処理部２５とインタフェース部２６とで構成されている。   The monitoring control devices 12, 13, 15, and 16 all have the same configuration. For example, the first monitoring control device 12 of the unmanned station includes a basic processing unit 25 and an interface unit 26 as shown in FIG.

基本処理部２５は、ＲＯＭ２８、第１及び第２メモリ（記憶部）２９，３０、並びにこれらを統括的に制御する制御部３１とで構成されている。制御部３１は、系間の監視を行う状況判定部３２、状況判定部３２の判定に基づいて運用系と待機系の切換えを制御する系間切換制御部３３、及びアクセス制御部３９を備える。
インタフェース部２６は、回線処理部３４、保守回線処理部３６、個別入出力処理部３７、及び系間処理部３８で構成されている。 The basic processing unit 25 includes a ROM 28, first and second memories (storage units) 29 and 30, and a control unit 31 that performs overall control thereof. The control unit 31 includes a status determination unit 32 that performs monitoring between systems, an inter-system switching control unit 33 that controls switching between the active system and the standby system based on the determination of the status determination unit 32, and an access control unit 39.
The interface unit 26 includes a line processing unit 34, a maintenance line processing unit 36, an individual input / output processing unit 37, and an intersystem processing unit 38.

回線処理部３４は、運用系で動作する時に、第１パケット通信網１７を介して有人局１４の第１監視制御装置１５との間で通信するパケットデータの回線処理を行う。また、待機系で動作する時に、パケット通信網１７を介して有人局１４の第２監視制御装置１６との間で通信するパケットデータの回線処理を行う。回線処理部３４は、ＰＡＤ(Packet Assembly Disassembly)を備えている。   The line processing unit 34 performs line processing of packet data communicated with the first monitoring control device 15 of the manned station 14 via the first packet communication network 17 when operating in the operational system. Further, when operating in a standby system, line processing of packet data communicated with the second supervisory control device 16 of the manned station 14 via the packet communication network 17 is performed. The line processing unit 34 includes a PAD (Packet Assembly Disassembly).

保守回線処理部３６は、直に接続される保守コンソール２１との間でやり取りするデータの回線処理を行う。個別入出力処理部３７は、ネットワークを介して第１被監視機器との間でやり取りする個別入出力データの回線処理を行う。系間処理部３８は、伝送路１９を介して接続される、同局の他系で動作する第２監視制御装置１３との間でやり取りするデータの回線処理を行う。   The maintenance line processing unit 36 performs line processing of data exchanged with the maintenance console 21 connected directly. The individual input / output processing unit 37 performs line processing of individual input / output data exchanged with the first monitored device via the network. The inter-system processing unit 38 performs line processing of data exchanged with the second monitoring control device 13 that is connected via the transmission path 19 and operates in the other system of the same station.

ＲＯＭ２８には、プログラムデータが記憶されている。第1及び第２メモリ２９，３０は、書き換え可能な不揮発性メモリで構成されており、前記プログラム等で用いるための設定情報を記述した設定情報テーブル（テーブルデータ）がそれぞれ記憶されている。これらメモリ２９，３０に記憶されるテーブルデータは、同じデータとなっている。   The ROM 28 stores program data. The first and second memories 29 and 30 are rewritable nonvolatile memories and store setting information tables (table data) describing setting information for use in the program or the like. The table data stored in these memories 29 and 30 is the same data.

アクセス制御部３９は、第１及び第２メモリ２９，３０と個別に接続されており、第１及び第２メモリ２９，３０のうちのいずれにアクセスするかを切り換える制御を行う。   The access control unit 39 is individually connected to the first and second memories 29 and 30, and performs control to switch which of the first and second memories 29 and 30 is accessed.

制御部３１は、通常、いずれか一方のメモリに対して運用用としてアクセスするようにアクセス制御部３９を制御しており、運用用としてアクセスするメモリに異常が生じた場合には、他方（待機用）のメモリにアクセスを切り換えるようにアクセス制御部３９を制御する。また、制御部３１は、テーブルデータ書き換え要求が指示された時には待機用のメモリとアクセスするようにアクセス制御部３９を制御する。   The control unit 31 normally controls the access control unit 39 to access one of the memories for operation. When an abnormality occurs in the memory accessed for operation, the other (standby) The access control unit 39 is controlled to switch the access to the memory. Further, the control unit 31 controls the access control unit 39 to access the standby memory when a table data rewrite request is instructed.

このようにテーブルデータを二重化することで、運用用のテーブルデータに異常が生じた場合でも、待機用のテーブルデータに切り戻すことで、復旧が容易に行える。また、テーブルデータの書き換え等の保守は、その時点で使用されていない待機用のテーブルデータに対して行うことで、監視制御装置の動作を止めることなく行える。   By duplicating the table data in this way, even if an abnormality occurs in the table data for operation, recovery can be easily performed by switching back to the table data for standby. Further, maintenance such as rewriting of table data can be performed without stopping the operation of the supervisory control device by performing maintenance on the standby table data that is not used at that time.

なお、書き換え可能な不揮発性メモリを一つのみ設け、このメモリの領域を二つに区分し、両方の領域に同じテーブルデータを記憶させ、一方の領域に記憶のテーブルデータを運用用として、他方領域に記憶のテーブルデータを待機用として読み出す制御を行う構成としてもよい。   It should be noted that only one rewritable non-volatile memory is provided, the area of this memory is divided into two, the same table data is stored in both areas, the stored table data is used in one area, and the other A configuration may be adopted in which the table data stored in the area is read for standby.

次に上記構成の作用を簡単に説明する。有人局１４の第１監視制御装置１５が運用系として、また第２監視制御装置１６が待機系としてそれぞれ動作している時には、無人局１１の第１監視制御装置１２が運用系として、また第２監視制御装置１３が待機系として動作する。   Next, the operation of the above configuration will be briefly described. When the first supervisory control device 15 of the manned station 14 is operating as the active system and the second supervisory control device 16 is operating as the standby system, the first supervisory control device 12 of the unmanned station 11 is used as the active system. 2 The monitoring control device 13 operates as a standby system.

運用系で動作する第１監視制御装置１２，１５同士は、第1パケット通信網１７を使用して監視情報のデータ通信を行う。そして、待機系で動作する第２監視制御装置１３，１６は、第２パケット通信網１８を使用して監視情報のデータ通信をする。   The first monitoring control devices 12 and 15 operating in the operational system perform data communication of monitoring information using the first packet communication network 17. Then, the second monitoring control devices 13 and 16 operating in the standby system use the second packet communication network 18 for data communication of monitoring information.

例えば、無人局１１の待機系で動作する第２監視制御装置１３は、図３に示すように、運用系で動作する第１監視制御装置１２を常に監視している（Ｓ−１）。待機系の第２監視制御装置１３の状況判定部３２は、運用系の第１監視制御装置１２に異常又は障害が発生したことを検出すると（Ｓ−２の「Ｙ」側）、第２パケット通信網１８を介して有人局１４の待機系で動作する第２監視制御装置１５に系切換情報を送信する（Ｓ−３）。また、系間処理部３８を介して待機系で動作させる制御データを運用系の第１監視制御装置１２に送信する（Ｓ−４）。その後、待機系の第２監視制御装置１３の制御部３１は、自身を運用系として動作させる（Ｓ−５）。なお、前述した「Ｓ−３」の手順を「Ｓ−４」の手順の後で行ってもよい。
これにより、無人局１１は、第２監視制御装置（元の待機系で動作する監視制御装置）１３が新たに運用系として動作する。
一方、有人局１４の待機系で動作する第２監視制御装置１６は、無人局１１の第２監視制御装置１３から系切換情報を受け取ることに応答して（Ｓ−６）、待機系で動作させるための制御データを同局の運用系で動作する第１監視制御装置１５に送るとともに（Ｓ−４）、その後、自身を運用系として動作させる（Ｓ−５）。 For example, as shown in FIG. 3, the second monitoring control device 13 operating in the standby system of the unmanned station 11 constantly monitors the first monitoring control device 12 operating in the operation system (S-1). When the status determination unit 32 of the standby second monitoring control device 13 detects that an abnormality or failure has occurred in the active first monitoring control device 12 ("Y" side in S-2), the second packet The system switching information is transmitted to the second monitoring control device 15 operating in the standby system of the manned station 14 via the communication network 18 (S-3). In addition, the control data to be operated in the standby system is transmitted to the active first monitoring control device 12 via the inter-system processing unit 38 (S-4). After that, the control unit 31 of the standby second monitoring control device 13 operates as an active system (S-5). Note that the above-described procedure “S-3” may be performed after the procedure “S-4”.
Thereby, in the unmanned station 11, the second monitoring control device (monitoring control device that operates in the original standby system) 13 newly operates as the active system.
On the other hand, the second monitoring control device 16 operating in the standby system of the manned station 14 operates in the standby system in response to receiving the system switching information from the second monitoring control device 13 of the unmanned station 11 (S-6). Control data to be sent to the first monitoring control device 15 operating in the operating system of the same station (S-4), and thereafter operating itself as the operating system (S-5).

系切換時には、新たに運用系で動作する監視制御装置（元の待機系で動作する監視制御装置）は、障害発生前の装置状態の情報、例えば個別入出力データ等の監視情報が元の運用系で動作する監視制御装置と同期して取得しているので、監視に影響を与えずに監視動作を継続することができる。   At the time of system switching, the monitoring control device that newly operates in the active system (the monitoring control device that operates in the original standby system) has the original operation information such as individual I / O data monitoring information such as device status information before the failure occurred. Since the data is acquired in synchronization with the monitoring control device operating in the system, the monitoring operation can be continued without affecting the monitoring.

次に、無人局１１の監視制御装置１２，１３のテーブルデータを変更する保守を行う場合の手順を図４に示す。有人局１４の待機系で動作する第２監視制御装置１６の保守回線処理部３６に保守コンソール２１を接続する（Ｓ−７）。そして、待機用で動作する監視制御装置が使用する第２パケット通信網１８を利用して、無人局１１の待機系の第２監視制御装置１３に設けた待機用の第２メモリ３０に記憶のテーブルデータを新たなテーブルデータに書き換える指示を保守コンソール２１から行う（Ｓ−８）。   Next, FIG. 4 shows a procedure for performing maintenance for changing the table data of the monitoring control devices 12 and 13 of the unmanned station 11. The maintenance console 21 is connected to the maintenance line processing unit 36 of the second monitoring control device 16 operating in the standby system of the manned station 14 (S-7). Then, using the second packet communication network 18 used by the monitoring control device operating for standby, the second memory 30 stored in the standby second monitoring control device 13 of the standby system of the unmanned station 11 is stored. An instruction to rewrite table data to new table data is issued from the maintenance console 21 (S-8).

第２メモリのテーブルデータを新たなものに書き換えを実行した後には、無人局１１の第２監視制御装置１３のメモリ２９，３０に対してアクセスの切り換えを行い、元が待機用である第２メモリ３０を運用用へ切り換える。そして、元が運用用である第１メモリ２９を待機用へ切り換える（Ｓ−９）。   After rewriting the table data in the second memory to a new one, the access is switched to the memories 29 and 30 of the second supervisory control device 13 of the unmanned station 11, and the second is originally for standby. The memory 30 is switched to operation. Then, the first memory 29 that is originally used for operation is switched to standby (S-9).

その後、前述したと同様に保守コンソール２１により、待機用に切り換えられた第１メモリ２９に記憶のテーブルデータを新たなテーブルデータに書き換える指示を行う（Ｓ−１０）。これにより、無人局１１の待機系の監視制御装置１３に対しての保守作業が終了する。   After that, as described above, the maintenance console 21 gives an instruction to rewrite the table data stored in the first memory 29 switched to stand-by to new table data (S-10). Thereby, the maintenance work for the standby supervisory control device 13 of the unmanned station 11 is completed.

次に、保守コンソール２１から指示により、無人局１１の系切換を行って、保守作業を完了した待機系の第２監視制御装置１３を運用系として、また保守作業が未処理である第１監視制御装置１２を待機系として動作させる（Ｓ−１１）。これにより、有人局１４側も同期して系切換が行われる。そして、運用系に切り換わった監視制御装置１３，１６が第１パケット通信網１７を使用し、待機系に切り換わった監視制御装置１２，１５が第２パケット通信網１８を使用してデータ通信を行う。
系切換を完了した後には、運用系から待機系に切り換わった有人局１４の第１監視制御装置１５に保守コンソール２１を接続しなおす（Ｓ−１２）。 Next, in response to an instruction from the maintenance console 21, the system of the unmanned station 11 is switched, the second monitoring control device 13 of the standby system that has completed the maintenance work is set as the active system, and the first monitoring in which the maintenance work is unprocessed. The control device 12 is operated as a standby system (S-11). Thereby, the system switching is also performed in synchronism with the manned station 14 side. The monitoring control devices 13 and 16 switched to the active system use the first packet communication network 17, and the monitoring control devices 12 and 15 switched to the standby system use the second packet communication network 18 to perform data communication. I do.
After the system switching is completed, the maintenance console 21 is reconnected to the first supervisory control device 15 of the manned station 14 switched from the active system to the standby system (S-12).

その後は、待機系に切り換わった第１監視制御装置１５に対して第１パケット通信網１７を使用して、保守コンソール２１から指示により、待機系に切り換わった無人局１１の第１監視制御装置１２に対して前述したと同じ作業で保守を行う。すなわち、待機系に切り換わった第１監視制御装置１２の待機用の第２メモリ３０に記憶されているテーブルデータを新たなものに書き換える要求を指示し（Ｓ−１３）、その後、第1及び第２メモリ２９，３０のアクセス切換えを行って（Ｓ−１４）、待機用に切り替わった第１メモリ２９のテーブルデータに対しても新たなテーブルデータに書き換える要求を指示する（Ｓ−１５）。これにより、無人局１１の監視制御装置１２，１３のすべてに対して監視動作を止めずに設定情報の変更を行うことができる。   Thereafter, the first monitoring control of the unmanned station 11 switched to the standby system is instructed from the maintenance console 21 using the first packet communication network 17 to the first monitoring control device 15 switched to the standby system. Maintenance is performed on the device 12 by the same operation as described above. That is, a request for rewriting the table data stored in the standby second memory 30 of the first monitoring control device 12 that has been switched to the standby system to a new one is instructed (S-13). The access switching of the second memories 29 and 30 is performed (S-14), and a request to rewrite the table data of the first memory 29 switched to the standby mode to new table data is instructed (S-15). Thereby, the setting information can be changed without stopping the monitoring operation for all of the monitoring control devices 12 and 13 of the unmanned station 11.

なお、本発明は、上記各実施形態に限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化することができる。また、上記各実施形態に開示されている複数の構成要素の適宜な組み合わせにより、種々の発明を形成することができる。例えば、実施形態に示される全体構成要素から幾つかの構成要素を削除してもよい。   Note that the present invention is not limited to the above-described embodiments, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from the overall components shown in the embodiment.

１０ 監視システム
１１ 無人局
１２ 第１監視制御装置
１３ 第２監視制御装置
１４ 有人局
１５ 第１監視制御装置
１６ 第２監視制御装置
１７ 第１パケット通信網
１８ 第２パケット通信網 DESCRIPTION OF SYMBOLS 10 Monitoring system 11 Unmanned station 12 1st monitoring control apparatus 13 2nd monitoring control apparatus 14 Manned station 15 1st monitoring control apparatus 16 2nd monitoring control apparatus 17 1st packet communication network 18 2nd packet communication network

Claims (6)

無人局に設けられており、第１被監視機器から監視情報を取得して前記第１被監視機器を監視し、何れか一方を運用系として、他方を待機系として動作する二重化構造の監視制御装置と、
有人局に設けられており、前記無人局に設けた監視制御装置から前記第１被監視機器の監視情報を取得して前記第１被監視機器を監視し、何れか一方を運用系として、他方を待機系として動作する二重化構造の監視制御装置と、
前記無人局と前記有人局とに設けた運用系で動作する前記監視制御装置同士が前記第１被監視機器の監視情報の通信を行う第１パケット通信網と、
前記無人局と前記有人局とに設けた待機系で動作する前記監視制御装置同士が前記第１被監視機器の監視情報の通信を行う第２パケット通信網と、
前記有人局に設けた待機系で動作する監視制御装置に接続され、前記第１及び第２パケット通信網のうち前記第２パケット通信網のみを利用してこの監視制御装置と前記無人局に設けた待機系で動作する監視制御装置との間で保守用情報の通信を行う保守用端末と、
を備えたことを特徴とする監視システム。 Monitoring control of a duplex structure provided in an unmanned station that acquires monitoring information from a first monitored device and monitors the first monitored device, and operates either as an active system and the other as a standby system Equipment,
Provided in a manned station, acquires monitoring information of the first monitored device from a monitoring control device provided in the unmanned station, monitors the first monitored device, and sets one of them as an operating system, and the other A supervisory control device with a dual structure that operates as a standby system;
A first packet communication network in which the monitoring control devices operating in the operational system provided in the unmanned station and the manned station communicate the monitoring information of the first monitored device ;
A second packet communication network in which the monitoring control devices operating in a standby system provided in the unmanned station and the manned station communicate the monitoring information of the first monitored device ;
Connected to the supervisory control device operating in the standby system provided in the manned station, and provided in the supervisory control device and the unmanned station using only the second packet communication network of the first and second packet communication networks. a maintenance terminal for communicating with maintenance information between the monitoring and control device operating in standby and,
A monitoring system characterized by comprising: 前記待機系で動作する監視制御装置は、前記第２パケット通信網を介して受信する前記監視情報を破棄する手段を備えることを特徴とする請求項１に記載の監視システム。 Monitoring system according to claim 1 wherein the monitoring and control device which operates in the standby system, characterized in that it comprises means for discarding the monitoring information received via the second packet communication network. 前記待機系で動作する監視制御装置は、同局の運用系で動作する監視制御装置を監視し、同局の運用系で動作する監視制御装置が異常であると判断する場合、運用系で動作する監視制御装置を待機系へ、かつ自身を運用系へ系切換えを実行するとともに、
対局の待機系で動作する監視制御装置の系切換えに応答して、同局での系切換えを実行する、ことを特徴とする請求項１又は２に記載の監視システム。 The monitoring and control apparatus operating in the standby system monitors the monitoring and control apparatus operating in the active system of the same station, and determines that the monitoring control apparatus operating in the active system of the same station is abnormal, the monitoring operating in the active system Performs system switching from the control device to the standby system and from itself to the active system,
Monitoring system according to claim 1 or 2 in response to the system switching of the monitoring control apparatus that operates in the remote station of the standby system, to perform the system switching in the department, characterized in that. 監視制御装置は、同じ設定情報をそれぞれ記憶する第１及び第２記憶部と、何れか一方の記憶部を運用用へ、他方を待機用へアクセスを切り換える制御を行うアクセス制御部と、を備えており、
前記アクセス制御部は、前記保守用端末から新たな設定情報の書き換え要求の指示に応答して、前記待機用の記憶部に記憶されている設定情報に対して書き換えを許容し、その後、新たに書き換えた待機用の記憶部を運用用へ、かつ運用用の記憶部を待機用へ切り換える処理を行った後に、切り換えた待機用の記憶部に記憶されている設定情報に対して再び書き換えを許容する、
ことを特徴とする請求項１から３のいずれか１項に記載の監視システム。 The monitoring control apparatus includes first and second storage units that store the same setting information, and an access control unit that performs control to switch access to one of the storage units for operation and the other to standby. And
In response to an instruction to rewrite the new setting information from the maintenance terminal, the access control unit permits rewriting of the setting information stored in the standby storage unit, and then newly After the process of switching the rewritten standby storage unit to the operation and the operation storage unit to the standby, the setting information stored in the switched standby storage unit can be rewritten again. To
The monitoring system according to any one of claims 1 to 3 , wherein: 無人局に設けられており、第１被監視機器から監視情報を取得して前記第１被監視機器を監視し、何れか一方を運用系として、他方を待機系として動作する二重化構造の監視制御装置と、有人局に設けられており、前記無人局に設けた監視制御装置から前記第１被監視機器の監視情報を取得して前記第１被監視機器を監視し、何れか一方を運用系として、他方を待機系として動作する二重化構造の監視制御装置とについて、前記無人局と前記有人局とに設けた運用系として動作する監視制御装置同士、及び待機系として動作する監視制御装置同士を、運用系が前記第１被監視機器の監視情報の通信に使用する第１パケット通信網と待機系が前記第１被監視機器の監視情報の通信に使用する第２パケット通信網とで個別に接続した監視システムの保守方法において、
前記有人局に設けた待機系で動作する監視制御装置に保守用端末を接続し、前記保守用端末を使用して、前記第１及び第２パケット通信網のうち前記第２パケット通信網のみを利用して無人局に設けた待機系で動作する監視制御装置との間で保守用情報の通信を行うことを特徴とする監視システムの保守方法。 Monitoring control of a duplex structure provided in an unmanned station that acquires monitoring information from a first monitored device and monitors the first monitored device, and operates either as an active system and the other as a standby system The monitoring information of the first monitored device is acquired from the monitoring control device provided in the unmanned station, and the first monitored device is monitored, and one of them is an operational system. As for the dual-structured monitoring control device that operates as the other standby system, the monitoring control devices that operate as the operation system provided in the unmanned station and the manned station, and the monitoring control devices that operate as the standby system individually in the second packet communication network standby first packet communication network operating system uses to communicate monitor information of said first monitored device uses to communicate monitor information of said first monitored device Connected monitoring system In the maintenance method,
Connect the maintenance terminal to the monitoring control apparatus that operates in a standby provided in the manned station, using the maintenance terminal, only the second packet communication network among the first and second packet communication network A maintenance method for a monitoring system, characterized in that maintenance information is communicated with a monitoring control device operating in a standby system provided in an unmanned station. 前記監視制御装置は、同じ設定情報をそれぞれ記憶する第１及び第２記憶部と、何れか一方の記憶部を運用用へ、他方を待機用へアクセスを切り換える制御を行うアクセス制御部と、を備えており、
前記保守用端末は、保守時に、前記待機用の記憶部に対して新たな設定情報の書き換え要求を指示し、その後、運用用の記憶部を待機用に、待機用の記憶部を運用用にそれぞれ切り換える要求を指示し、最後に、切り換えた待機用の記憶部に対して新たな設定情報の書き換え要求を指示する、
ことを特徴する請求項５に記載の監視システムの保守方法。 The monitoring control apparatus includes a first storage unit and a second storage unit that store the same setting information, and an access control unit that performs control to switch access to one of the storage units for operation and the other to standby. Has
The maintenance terminal instructs the standby storage unit to rewrite new setting information during maintenance, and then sets the operation storage unit for standby and the standby storage unit for operation. Instruct each request to switch, and finally instruct a new setting information rewrite request to the switched standby storage unit,
The maintenance method of the monitoring system according to claim 5 , wherein:
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