JP2014107952A - Simplified supervision control device - Google Patents

Simplified supervision control device Download PDF

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JP2014107952A
JP2014107952A JP2012259238A JP2012259238A JP2014107952A JP 2014107952 A JP2014107952 A JP 2014107952A JP 2012259238 A JP2012259238 A JP 2012259238A JP 2012259238 A JP2012259238 A JP 2012259238A JP 2014107952 A JP2014107952 A JP 2014107952A
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control
control device
mode
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monitoring control
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JP5847064B2 (en
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Yasutaka Kobayashi
泰貴 小林
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Mitsubishi Electric Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof

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Abstract

PROBLEM TO BE SOLVED: To provide a simplified supervision control device having a mode management function to switch a supervision mode and a control mode in order to prevent the multiple control of a control target device without use of hardware dedicated for the assignment of a control right, in a remote supervision control system having a plurality of operation consoles enabling controlling the control target device and portable terminals.SOLUTION: The supervision control device includes: a function of receiving information transmitted from a remote supervision control device sub-station 21 to recognize a line state between a remote supervision control device master station 13 and the remote supervision control device sub-station 21; when a plurality of terminal devices 23 of an identical type are connected to a transmission network 24 between the remote supervision control device master station 13 and the remote supervision control device sub-station 21, a function of receiving information transmitted from another terminal device 23 to recognize the mode information of the other terminal device 23; and on the basis of these two functions, mode management means for deciding a switchover between the supervision mode and the control mode.

Description

この発明は、遠方監視制御システムにおける、遠方監視制御装置親局と遠方監視制御装置子局との間のネットワークに接続することで制御対象装置を制御できる簡易型監視制御装置に関する。   The present invention relates to a simplified monitoring control device capable of controlling a device to be controlled by connecting to a network between a remote monitoring control device master station and a remote monitoring control device slave station in a remote monitoring control system.

一般的に遠方監視制御システムでは、指令所などに設置される操作卓やバックアップ用の可搬型端末などの制御可能な装置から、遠方監視制御装置親局と遠方監視制御装置子局を介して制御対象装置の制御を行うが、制御可能な装置が複数台ある場合は、多重制御を防ぐために信頼性の高い制御権の割付を行える機能が必要である。   In general, in a remote monitoring control system, control is performed from a controllable device such as a console installed at a command center or a portable terminal for backup via a remote monitoring control device master station and a remote monitoring control device slave station. Although the target device is controlled, when there are a plurality of controllable devices, a function capable of assigning a control right with high reliability is necessary to prevent multiple control.

従来の遠方監視制御システムにおいては、制御対象装置を制御できる複数のモバイル端末が存在する場合、制御権情報を書き込んだＩＣカードを端末に挿入し、ＩＣカードの情報を読み取ることで制御権の管理を行い、複数のモバイル端末から同一の制御対象機器を制御することを防止している（例えば、特許文献１参照）。・・・従来の事例１   In the conventional remote monitoring and control system, when there are a plurality of mobile terminals that can control the device to be controlled, the control right management is performed by inserting the IC card in which the control right information is written into the terminal and reading the information on the IC card. To prevent the same controlled device from being controlled from a plurality of mobile terminals (see, for example, Patent Document 1). ... Conventional example 1

また、別の従来の遠方監視制御システムにおいては、制御対象装置を制御できる複数の計算機が存在する場合、制御対象装置と監視制御する複数の計算機との間に計算機の制御権割付を行う制御中継装置を配置することで、複数の計算機から制御対象装置への多重制御を防止している（例えば、特許文献２参照）。・・・従来の事例２   In another conventional remote monitoring and control system, when there are a plurality of computers that can control the control target device, a control relay that assigns the control right of the computer between the control target device and the plurality of computers to be monitored and controlled By arranging the devices, multiple control from a plurality of computers to the control target device is prevented (see, for example, Patent Document 2). ... Conventional example 2

特開２００１−３４６３４２号公報JP 2001-346342 A 特開２００８−１２３０６３号公報JP 2008-123063 A

特許文献１に示すような従来の事例１においては、制御対象装置の制御権情報が書き込まれているＩＣカードをモバイル端末と一式で用意していない場合や、ＩＣカード自体を紛失させた場合などは、制御権の獲得や変更ができないという問題がある。   In the conventional case 1 as shown in Patent Document 1, when the IC card in which the control right information of the control target device is written is not prepared together with the mobile terminal, or when the IC card itself is lost, etc. However, there is a problem that control right cannot be acquired or changed.

また、特許文献２に示すような従来の事例２においては、複数の計算機と制御対象機器との間に配置されている制御中継装置自体が故障した場合は、システムの監視制御そのものができなくなる可能性がある。また、制御権割付を行うソフトウェア（ソフトウェアスイッチ）が停止した場合も、全ての計算機に対して制御権の切替ができなくなってしまう。   Further, in the conventional case 2 as shown in Patent Document 2, if the control relay device itself disposed between a plurality of computers and the control target device fails, the system monitoring control itself cannot be performed. There is sex. In addition, even when the software (software switch) for assigning the control right is stopped, the control right cannot be switched for all the computers.

この発明は、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、制御対象装置の制御が可能な操作卓や可搬型端末が複数存在する遠方監視制御システムにおいて、制御対象装置の多重制御を防ぐため、監視モード・制御モードを切り替えるモード管理機能を有する簡易型監視制御装置を実現することを目的とする。また、制御権割付のために専用のハードウェアを使用せず、遠方監視制御装置子局と簡易型監視制御装置間で送受信される情報の交換によりモード切替を行える簡易型監視制御装置を実現することを目的とする。   The present invention has been made in order to solve the above-described problems. In a remote monitoring control system in which there are a plurality of consoles and portable terminals capable of controlling a control target device, multiple control of the control target device is performed. Therefore, it is an object of the present invention to realize a simple monitoring control apparatus having a mode management function for switching between a monitoring mode and a control mode. In addition, a simple monitoring control device that can switch modes by exchanging information transmitted and received between the remote monitoring control device slave station and the simple monitoring control device without using dedicated hardware for assigning control rights is realized. For the purpose.

この発明に係る簡易型監視制御装置は、遠方監視制御装置親局と遠方監視制御装置子局との間の伝送系ネットワークに接続され、かつ、制御対象装置の監視のみを行う監視モードと監視・制御を行う制御モードの２つのモードを有し、遠方監視制御装置子局から送信される情報を受信することで、遠方監視制御装置親局と遠方監視制御装置子局間の回線状態を認識する機能と、同種の端末装置が遠方監視制御装置親局と遠方監視制御装置子局との間の伝送系ネットワークに複数接続されている場合に、他の端末装置から送信される情報を受信することで他の端末装置のモード情報を認識する機能と、上記２つの機能に基づき、監視モードと制御モードの切替を判断するモード管理手段を備えるようにしたものである。   A simplified monitoring control device according to the present invention is connected to a transmission network between a remote monitoring control device master station and a remote monitoring control device slave station, and also performs a monitoring mode and a monitoring It has two modes of control mode to perform control, and recognizes the line status between the remote monitoring control device master station and the remote monitoring control device slave station by receiving information transmitted from the remote monitoring control device slave station When the same type of terminal device is connected to the transmission network between the remote monitoring control device master station and the remote monitoring control device slave station, information transmitted from other terminal devices is received. And a mode management means for determining switching between the monitoring mode and the control mode based on the above two functions and the function of recognizing the mode information of the other terminal device.

この発明によれば、制御対象装置の制御が可能な操作卓や可搬型端末が複数存在する遠方監視制御システムにおいて、制御対象装置の多重制御を防ぐため、監視モード・制御モードを切り替えるモード管理機能を有する簡易型監視制御装置が得られる。また、制御権割付のために専用のハードウェアを使用せず、遠方監視制御装置子局と簡易型監視制御装置間で送受信される情報の交換によりモード切替を行える簡易型監視制御装置が得られる。   According to this invention, in a remote monitoring control system in which there are a plurality of consoles and portable terminals capable of controlling the control target device, the mode management function for switching the monitoring mode / control mode to prevent multiple control of the control target device A simple monitoring and control apparatus having the following can be obtained. In addition, a simple monitoring control device capable of switching modes by exchanging information transmitted and received between the remote monitoring control device slave station and the simple monitoring control device without using dedicated hardware for assigning control rights is obtained. .

この発明の実施の形態１を示すシステム構成図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a system configuration | structure figure which shows Embodiment 1 of this invention. この発明の実施の形態１における簡易型監視制御装置〜遠制子局間のヘルスチェック情報の通信シーケンスを示す図である。It is a figure which shows the communication sequence of the health check information between the simple monitoring control apparatus in Embodiment 1 of this invention, and a remote control station. この発明の実施の形態１における複数の簡易型監視制御装置間の制御モード許可/応答ＯＫの場合の通信シーケンスを示す図である。It is a figure which shows the communication sequence in the case of control mode permission / response OK between the some simple monitoring control apparatuses in Embodiment 1 of this invention. この発明の実施の形態１における複数の簡易型監視制御装置間の制御モード許可/応答ＮＧの場合の通信シーケンスを示す図である。It is a figure which shows the communication sequence in the case of control mode permission / response NG between the some simple monitoring control apparatuses in Embodiment 1 of this invention. この発明の実施の形態１におけるヘルスチェック送受信処理のフローチャートを示す図である。It is a figure which shows the flowchart of the health check transmission / reception process in Embodiment 1 of this invention. この発明の実施の形態１における制御モード切替のフローチャートを示す図である。It is a figure which shows the flowchart of control mode switching in Embodiment 1 of this invention. この発明の実施の形態２における遠制親局〜簡易型監視制御装置〜遠制子局間のヘルスチェック情報の通信シーケンスを示す図である。It is a figure which shows the communication sequence of the health check information between the remote control station-the simple type | mold monitoring control apparatus-a remote control station in Embodiment 2 of this invention. この発明の実施の形態２におけるヘルスチェック送受信処理のフローチャートを示す図である。It is a figure which shows the flowchart of the health check transmission / reception process in Embodiment 2 of this invention. この発明の実施の形態２における制御モード切替のフローチャートを示す図である。It is a figure which shows the flowchart of the control mode switching in Embodiment 2 of this invention.

実施の形態１．
以下、この発明の実施の形態１を説明する。
図１は、この発明による簡易型監視制御装置を遠方監視制御システムに適応させた構成である。遠方監視制御システムでは、監視制御のヒューマンインタフェースを実行する操作卓１１と、監視制御アプリケーションを実行する計算機サーバ１２と、計算機サーバ１２と遠方監視制御装置子局との間でデータ伝送を行う遠方監視制御装置親局（以降、遠制親局と略す）１３と、遠制親局１３と制御対象装置２２−１，２２−２・・・２２−ｎ・・・２２−ｍとの間でデータ伝送を行う遠方監視制御装置子局（以降、遠制子局と略す）２１−１,２１−２・・・２１−ｎ・・・２１−ｍと、操作卓１１から監視制御できない場合などのバックアップとして制御対象装置２２を監視制御するために遠制子局２１とデータ伝送を行う簡易型監視制御装置２３−１，２３−２から構成される。この簡易型監視制御装置２３としてはノート型パソコンが通常使用される。 Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below.
FIG. 1 shows a configuration in which a simple monitoring control apparatus according to the present invention is adapted to a remote monitoring control system. In the remote monitoring and control system, a console 11 that executes a human interface for monitoring and control, a computer server 12 that executes a monitoring control application, and a remote monitoring that performs data transmission between the computer server 12 and a remote monitoring control device slave station. Data between the control device master station (hereinafter abbreviated as a remote control master station) 13 and the remote control master station 13 and the control target devices 22-1 2-22-2 ... 22-n ... 22-m Remote monitoring and control device slave station (hereinafter referred to as “far control slave station”) 21-1, 21-2... 21-n. In order to monitor and control the control target device 22 as a backup, the remote control station 21 includes simple monitoring control devices 23-1 and 23-2 that perform data transmission. As the simple monitoring control device 23, a notebook personal computer is usually used.

なお、操作卓１１と計算機サーバ１２、遠制親局１３が接続されるネットワークを制御系ＬＡＮ１４と呼称し、遠制親局１３と遠制子局２１、簡易型監視制御装置２３が接続されるネットワークを伝送系ＬＡＮ２４と呼称する。   A network to which the console 11, the computer server 12, and the remote control station 13 are connected is referred to as a control LAN 14, and the remote control station 13, the remote control station 21, and the simplified monitoring control device 23 are connected. The network is referred to as a transmission LAN 24.

初めに、簡易型監視制御装置２３のモード管理について説明する。簡易型監視制御装置２３のモードには、制御モードと監視モードがある。
監視モードは、制御対象装置２２から送信される情報を元に画面上で色替え表示、点滅表示や警報鳴動させるが、制御対象装置２２の制御や遠制子局２１のモード切替指令は行えない。
制御モードは、色替え表示、点滅表示や警報鳴動などの監視機能に加えて、制御対象装置２２の制御が行える。
これらのモード切替は、基本的に簡易型監視制御装置２３の画面上のモード切替釦を押下することでモードを切り替えられる。その際、制御モードの簡易型監視制御装置２３−１が伝送系ＬＡＮ２４に存在する状態で、他の簡易型監視制御装置２３−２を制御モードへ移行させる場合は、制御対象装置２２の多重制御を起こさないためのモード管理手法が必要である。 First, mode management of the simplified monitoring control device 23 will be described. The mode of the simple monitoring control device 23 includes a control mode and a monitoring mode.
In the monitoring mode, color change display, blinking display, and alarm sound are generated on the screen based on information transmitted from the control target device 22, but control of the control target device 22 and mode switching command of the remote control station 21 cannot be performed. .
In the control mode, in addition to monitoring functions such as color change display, blinking display and alarm sounding, the control target device 22 can be controlled.
These modes can be switched basically by pressing a mode switching button on the screen of the simplified monitoring control device 23. At this time, when the simple monitoring control device 23-1 in the control mode is present in the transmission LAN 24 and the other simple monitoring control device 23-2 is shifted to the control mode, the multiplex control of the control target device 22 is performed. It is necessary to have a mode management method to prevent the occurrence of the problem.

次に、簡易型監視制御装置２３のモード管理方式について制御権獲得（制御モード移行）方法に着目して説明する。
簡易型監視制御装置２３の起動時は監視モードであり、制御モードに移行するためには、「制御対象の遠制子局２１と遠制親局１３間が通信できないこと（操作卓１１から制御できないこと）」と「制御対象の遠制子局２１の制御権を他の簡易型監視制御装置２３が獲得していないこと」の２つの条件を満たす必要がある。以下、図２〜図４の通信シーケンスと図５、図６のフローチャートに従って詳細を説明する。 Next, the mode management method of the simplified monitoring control device 23 will be described by focusing on the control right acquisition (control mode shift) method.
When the simplified supervisory control device 23 is activated, it is in the monitoring mode, and in order to shift to the control mode, “the communication between the remote control station 21 to be controlled and the remote control station 13 cannot be performed (control from the console 11). Two other conditions must be satisfied: “cannot be performed” and “no other supervisory control device 23 has acquired the control right of the remote control station 21 to be controlled”. Details will be described below with reference to the communication sequences of FIGS. 2 to 4 and the flowcharts of FIGS.

まず、簡易型監視制御装置２３〜遠制子局２１間のヘルスチェック送受信処理について図２、図５に基づいて説明する。
伝送系ＬＡＮに接続された簡易型監視制御装置は（ステップ１０１）、定周期で伝送系ＬＡＮに向けてヘルスチェックをブロードキャスト（同報通信）で送信する（ステップ１０２）。ヘルスチェックの伝送フォーマットには、送信元伝送装置や簡易型監視制御装置の運転モードなどの簡易型監視制御装置の状態情報が含まれる。 First, the health check transmission / reception processing between the simplified monitoring control device 23 and the remote control station 21 will be described with reference to FIGS.
The simplified monitoring and control apparatus connected to the transmission LAN (step 101) transmits a health check by broadcast (broadcast communication) to the transmission LAN at regular intervals (step 102). The health check transmission format includes state information of the simple monitoring control device such as the operation mode of the transmission source transmission device and the simple monitoring control device.

伝送系ＬＡＮ２４に接続されている遠制子局２１−１〜２１−ｍは、定周期で送信される簡易型監視制御装置２３のヘルスチェックに対して、ブロードキャスト（同報通信）でヘルスチェック応答を送信する。ヘルスチェック応答には、送信元伝送装置、遠制子局２１のステータス、遠制子局２１〜制御対象装置２２間の回線情報、遠制親局１３〜遠制子局２１の回線情報、遠制子局２１の運転モードなどの遠制子局２１の状態情報が含まれる。遠制親局１３〜遠制子局２１−ｎ（１≦ｎ≦ｍ）間の回線状態が変化した場合は、遠制子局２１−ｎが保持している情報が更新され、ヘルスチェック応答に反映される。   The remote control stations 21-1 to 21-m connected to the transmission LAN 24 respond to a health check response by broadcast (broadcast communication) in response to the health check of the simple monitoring control device 23 transmitted at a fixed period. Send. The health check response includes the transmission source device, the status of the remote control station 21, the line information between the remote control station 21 and the control target device 22, the line information of the remote control station 13 to the remote control station 21, The status information of the remote control station 21 such as the operation mode of the control station 21 is included. When the line status between the remote control station 13 and the remote control station 21-n (1 ≦ n ≦ m) changes, the information held by the remote control station 21-n is updated, and the health check response It is reflected in.

伝送系ＬＡＮ２４に接続された簡易型監視制御装置２３は、ステップ１０３のフローにおいて、伝送系ＬＡＮ２４に接続されている遠制子局２１のヘルスチェック応答を受信すれば、遠制親局１３〜遠制子局２１−ｎ（１≦ｎ≦ｍ）間の回線状態を認識する（ステップ１０４）。受信できなければ、対象の遠制子局２１とは通信異常となる（ステップ１０５）。   If the simplified monitoring control device 23 connected to the transmission system LAN 24 receives the health check response of the remote control station 21 connected to the transmission system LAN 24 in the flow of step 103, the remote control station 13 to the remote control station 13. The line state between the control stations 21-n (1 ≦ n ≦ m) is recognized (step 104). If it cannot be received, communication with the target remote control station 21 is abnormal (step 105).

次に、簡易型監視制御装置２３の制御モード移行時の通信処理について図３、図４、図６に基づき説明する。
簡易型監視制御装置２３を制御モードに移行させる場合は、簡易型監視制御装置２３の画面上のモード切替釦（図示せず）を押下することで実行する（ステップ２０２）。その際、遠制親局１３〜制御対象の遠制子局２１−ｎ間の回線異常を認識していれば、簡易型監視制御装置２３は伝送系ＬＡＮ２４に制御モード許可をブロードキャスト（同報通信）で送信する（ステップ２０３、２０４）。 Next, communication processing when the simplified monitoring control device 23 shifts to the control mode will be described with reference to FIGS. 3, 4, and 6.
When the simple monitoring control device 23 is shifted to the control mode, it is executed by pressing a mode switching button (not shown) on the screen of the simple monitoring control device 23 (step 202). At this time, if the line abnormality between the remote control station 13 and the remote control station 21-n to be controlled is recognized, the simplified monitoring control device 23 broadcasts the control mode permission to the transmission LAN 24 (broadcast communication). ) (Steps 203 and 204).

簡易型監視制御装置２３−１が伝送系ＬＡＮ２４に接続されている他の簡易型監視制御装置２３−２から制御モード許可を受信した場合、制御モード許可応答を伝送系ＬＡＮ２４に対してブロードキャストで送信する。制御モード許可応答の伝送フォーマットは、応答結果と制御権取得状態から構成される。応答結果は、簡易型監視制御装置２３が監視モードの場合は「制御モード移行ＯＫ（例えば０）」を、制御モードの場合は「制御モード移行ＮＧ（例えば１）」をセットする。制御権取得状態は、応答結果が「制御モード移行ＮＧ」の場合のみ有効な情報で、現在制御権を取得している遠制子局のＮｏ．をセットする。   When the simplified monitoring control device 23-1 receives a control mode permission from another simplified monitoring control device 23-2 connected to the transmission system LAN 24, a control mode permission response is broadcast to the transmission system LAN 24. To do. The transmission format of the control mode permission response includes a response result and a control right acquisition state. As the response result, “control mode shift OK (for example, 0)” is set when the simplified monitoring control device 23 is in the monitor mode, and “control mode shift NG (for example, 1)” is set when the control mode is the control mode. The control right acquisition state is valid information only when the response result is “control mode transition NG”, and the No. of the remote control station that is currently acquiring the control right. Set.

簡易型監視制御装置２３は複数台同時に伝送系ＬＡＮ２４に接続可能であるが、「制御モード」に移行できる簡易型監視制御装置２３は１つの遠制子局２１あたり１台だけである。したがって簡易型監視制御装置間２３の通信内容によって、次の通りモード移行する（ステップ２０５〜２０８）。   Although a plurality of simplified monitoring control devices 23 can be connected to the transmission LAN 24 at the same time, only one simplified monitoring control device 23 per remote control station 21 can shift to the “control mode”. Therefore, the mode shifts as follows depending on the communication contents between the simple monitoring control devices 23 (steps 205 to 208).

伝送系ＬＡＮ２４に接続されている簡易型監視制御装置２３が１台の場合、予め定めた時間内（例えば１０秒以内）に制御モード許可に対する制御モード許可応答を受信しないので、制御モード許可応答がタイムアウトとなり、他の簡易型監視制御装置２３は伝送系ＬＡＮ２４に未接続と判断して、制御モードに移行する。   When there is one simple type supervisory control device 23 connected to the transmission LAN 24, the control mode permission response for the control mode permission is not received within a predetermined time (for example, within 10 seconds). A time-out occurs, and the other simplified monitoring control device 23 determines that it is not connected to the transmission LAN 24 and shifts to the control mode.

伝送系ＬＡＮ２４に接続されている簡易型監視制御装置２３が２台以上の場合、制御モード許可に対する制御モード許可応答の内容に応じて処理が異なる。
伝送系ＬＡＮ２４に接続されている全ての簡易型監視制御装置２３からの制御モード許可応答の応答結果が「制御モード移行ＯＫ」の場合、制御モードに移行する。
制御モード許可応答の応答結果が「制御モード移行ＮＧ」、且つ、制御権取得状態が遠制 子局２１−ｎの場合、モード移行しようとしている簡易型監視制御装置２３の制御対象に遠制子局２１−ｎが含まれていなければ、制御モードに移行する。
制御モード許可応答の応答結果が「制御モード移行ＮＧ」、且つ、制御権取得状態が遠制子局２１−ｎの場合、モード移行しようとしている簡易型監視制御装置２３の制御対象に遠制子局２１−ｎが含まれていれば、制御モードに移行せず、監視モードのままとなる。 When there are two or more simplified monitoring control devices 23 connected to the transmission LAN 24, processing differs depending on the content of the control mode permission response to the control mode permission.
When the response result of the control mode permission response from all the simplified monitoring control devices 23 connected to the transmission LAN 24 is “control mode shift OK”, the control mode shifts.
When the response result of the control mode permission response is “control mode transition NG” and the control right acquisition state is the remote control station 21-n, the remote control device is the control target of the simplified monitoring control device 23 that is about to change the mode. If the station 21-n is not included, the control mode is entered.
When the response result of the control mode permission response is “control mode transition NG” and the control right acquisition state is the remote control station 21-n, the remote control device 23 is the control target of the simplified monitoring control device 23 that is about to change the mode. If the station 21-n is included, the control mode is not entered and the monitoring mode remains.

次に、制御権が解放され、制御モードから監視モードへ移行する場合について説明する。
制御権を獲得している遠制子局２１の回線状態が変化し、当該遠制子局２１と遠制親局１３のヘルスチェック異常かＴＣＰ／ＩＰのコネクション断が復旧したとき、簡易型監視制御装置２３は当該遠制子局２１の制御権を失い、監視モードへと移行する。
または、簡易型監視制御装置２３画面上のモード切替釦を押下することで、監視モードに移行する。 Next, a case where the control right is released and the mode is shifted from the control mode to the monitoring mode will be described.
Simple monitoring when the line status of the remote control station 21 that has acquired the control right changes and the health check error or the TCP / IP connection disconnection between the remote control station 21 and the remote control station 13 is restored. The control device 23 loses the control right of the remote control station 21 and shifts to the monitoring mode.
Alternatively, the mode is shifted to the monitoring mode by pressing the mode switching button on the screen of the simple monitoring control device 23.

この実施の形態１による簡易型監視制御装置によると、遠制子局２１〜簡易型監視制御装置２３間のデータ伝送によって監視モード・制御モードのモード切替が可能であり、制御権割付を行う専用のハードウェアを要することなく制御対象装置２２の多重制御を防止できる。   According to the simplified monitoring and control apparatus according to the first embodiment, the mode can be switched between the monitoring mode and the control mode by data transmission between the remote control station 21 to the simplified monitoring and control apparatus 23, and dedicated control assignment is performed. Multiple control of the control target device 22 can be prevented without requiring hardware.

実施の形態２．
この発明の実施の形態２を図１に基づいて説明する。
上記実施の形態１では、遠制親局１３〜遠制子局２１−ｎ間の回線異常を条件に（操作卓から制御できないことを条件に）、遠制子局２１−ｎの制御権を獲得する場合について述べたが、操作卓１１及び計算機サーバ１２が故障しているが遠制親局１３〜遠制子局２１−ｎ間の回線は正常な場合も、遠制親局１３のヘルスチェックを簡易型監視制御装置２３が受信することで、ヘルスチェックに含まれる操作卓１１及び計算機サーバ１２の異常を認識する手段を設けたので、簡易型監視制御装置２３から遠制子局２１−ｎの制御権を獲得できる。 Embodiment 2. FIG.
A second embodiment of the present invention will be described with reference to FIG.
In the first embodiment, the control right of the remote control station 21-n is given on the condition of the line abnormality between the remote control station 13 and the remote control station 21-n (provided that it cannot be controlled from the console). Although the case where the operation console 11 and the computer server 12 are out of order has been described, the health of the remote control station 13 can be obtained even when the line between the remote control station 13 and the remote control station 21-n is normal. Since the simplified monitoring control device 23 receives the check, a means for recognizing an abnormality in the console 11 and the computer server 12 included in the health check is provided, so that the remote monitoring station 21- n control rights can be obtained.

以下、実施の形態１と異なる点について図７の通信シーケンスと図８、図９のフローチャートに従って詳細を説明する。
実施の形態１の段落［００１６］〜［００１８］の説明において、遠制親局１３〜遠制子局２１−ｎ間の回線が正常の場合での簡易型監視制御装置２３の制御権獲得（制御モード移行）方法を説明する。
遠制親局１３が正常に伝送系ＬＡＮ２４に接続されている場合は、定周期でヘルスチェックをブロードキャストで送信する。遠制親局１３が送信するヘルスチェックの伝送フォーマットには、送信元伝送装置、遠制親局１３のステータス、遠制親局１３〜操作卓１１及び計算機サーバ１２間の回線情報、遠制親局１３の運転モードなどの遠制親局１３の状態情報が含まれる。 Hereinafter, details of the differences from the first embodiment will be described according to the communication sequence of FIG. 7 and the flowcharts of FIGS.
In the description of paragraphs [0016] to [0018] in the first embodiment, the control right of the simplified monitoring control device 23 is acquired when the line between the remote control station 13 and the remote control station 21-n is normal ( (Control mode shift) method will be described.
When the remote control master station 13 is normally connected to the transmission LAN 24, the health check is broadcasted at a regular cycle. The health check transmission format transmitted by the remote control station 13 includes the transmission source transmission device, the status of the remote control station 13, the line information between the remote control station 13 to the console 11 and the computer server 12, the remote control system. The status information of the remote master station 13 such as the operation mode of the station 13 is included.

伝送系ＬＡＮ２４に接続された簡易型監視制御装置２３は、伝送系ＬＡＮ２４に接続されている遠制親局１３のヘルスチェックを受信し、遠制親局１３〜操作卓１１及び計算機サーバ１２間の回線状態を認識する（ステップ３０１、３０２）。受信できなければ、遠制親局１３とは通信異常となる（ステップ３０３）。   The simplified monitoring control device 23 connected to the transmission system LAN 24 receives the health check of the remote control station 13 connected to the transmission system LAN 24, and connects the remote control station 13 to the console 11 and the computer server 12. The line state is recognized (steps 301 and 302). If it cannot be received, communication with the remote master station 13 becomes abnormal (step 303).

次に、簡易型監視制御装置２３を制御モードに移行させる場合は、簡易型監視制御装置２３画面上のモード切替釦を押下することで実行する。その際、遠制親局１３〜操作卓１１及び計算機サーバ１２間の回線異常を認識していれば、操作卓１１及び計算機サーバ１２より制御対象機器２２を制御できないと判断し（ステップ４０１）、簡易型監視制御装置２３は伝送系ＬＡＮ２４に制御モード許可をブロードキャストで送信する。
その後は、実施の形態１における段落［００２０］〜［００２３］の説明と同様であり、遠制親局１３〜操作卓１１及び計算機サーバ１２間の回線復帰を簡易型監視制御装置２３が認識した場合は、簡易型監視制御装置２３は監視モードへと移行して制御権を放棄する。 Next, when the simplified monitoring control device 23 is shifted to the control mode, the mode switching button on the simplified monitoring control device 23 screen is pressed. At this time, if the line abnormality between the remote master station 13 to the console 11 and the computer server 12 is recognized, it is determined that the control target device 22 cannot be controlled from the console 11 and the computer server 12 (step 401). The simple monitoring control device 23 transmits a control mode permission to the transmission LAN 24 by broadcasting.
After that, it is the same as the description in paragraphs [0020] to [0023] in the first embodiment, and the simple monitoring control device 23 recognizes the line restoration between the remote master station 13 to the console 11 and the computer server 12. In this case, the simplified monitoring control device 23 shifts to the monitoring mode and gives up the control right.

この実施の形態２による簡易型監視制御装置２３によると、遠制親局１３〜遠制子局２１間の回線が正常でも、遠制親局１３〜操作卓１１及び計算機サーバ１２間の回線異常を認識できる手段を設けることで、「操作卓及び計算機サーバから制御対象装置への制御は不可能」と判断できるため、制御対象装置２２の多重制御を防止しつつ、制御権の獲得条件を拡張できる。   According to the simplified monitoring control device 23 according to the second embodiment, even if the line between the remote control station 13 and the remote control station 21 is normal, the line error between the remote control station 13 and the console 11 and the computer server 12 is abnormal. Since it is possible to determine that “control from the console and computer server to the control target device is impossible”, the control right acquisition condition is expanded while preventing multiple control of the control target device 22. it can.

なお、本発明はその発明の範囲内において、各実施の形態の一部または全部を自由に組合わせたり、各実施の形態を適宜、変形、省略することが可能である。   Note that the present invention can be partly or wholly combined with each other within the scope of the invention, or can be appropriately modified or omitted.

１１ 操作卓、１２ 計算機サーバ、１３ 遠方監視制御装置親局（遠制親局）、１４ 制御系ＬＡＮ、２１ 遠方監視制御装置子局（遠制子局）、２２ 制御対象装置、２３ 簡易型監視制御装置、２４ 伝送系ＬＡＮ。   DESCRIPTION OF SYMBOLS 11 Operation console, 12 Computer server, 13 Remote monitoring and control apparatus main station (remote control master station), 14 Control system LAN, 21 Remote monitoring control apparatus slave station (far control station), 22 Control object apparatus, 23 Simple monitoring Control device, 24 transmission LAN.

Claims (4)

遠隔地に設置された制御対象装置と情報の授受を行う遠方監視制御装置子局と、前記遠方監視制御装置子局と情報の授受を行う遠方監視制御装置親局と、前記遠方監視制御装置親局と情報の授受を行い、監視制御アプリケーションを実行する計算機サーバと、制御対象装置を制御するために前記計算機サーバに制御信号を送信する操作卓から構成される遠方監視制御システムに適応される端末装置であり、
この端末装置は、前記遠方監視制御装置親局と前記遠方監視制御装置子局との間の伝送系ネットワークに接続され、かつ、前記制御対象装置の監視のみを行う監視モードと監視・制御を行う制御モードの２つのモードを有し、
前記遠方監視制御装置子局から送信される情報を受信することで、前記遠方監視制御装置親局と前記遠方監視制御装置子局間の回線状態を認識する機能と、
同種の端末装置が前記遠方監視制御装置親局と前記遠方監視制御装置子局との間の伝送系ネットワークに複数接続されている場合に、他の端末装置から送信される情報を受信することで他の端末装置のモード情報を認識する機能と、
上記２つの機能に基づき、監視モードと制御モードの切替を判断するモード管理手段を備えることを特徴とする簡易型監視制御装置。 A remote monitoring control device slave station that exchanges information with a control target device installed at a remote location, a remote monitoring control device parent station that exchanges information with the remote monitoring control device slave station, and the remote monitoring control device parent A terminal adapted to a remote monitoring control system comprising a computer server for exchanging information with a station and executing a supervisory control application, and an operation console for transmitting a control signal to the computer server for controlling a control target device Device,
The terminal device is connected to a transmission network between the remote monitoring control device master station and the remote monitoring control device slave station, and performs a monitoring mode and monitoring / control that only monitors the control target device. There are two modes of control mode,
Receiving information transmitted from the remote monitoring control device slave station, the function of recognizing the line state between the remote monitoring control device master station and the remote monitoring control device slave station,
By receiving information transmitted from other terminal devices when multiple terminals of the same type are connected to a transmission network between the remote monitoring control device master station and the remote monitoring control device slave station. A function for recognizing mode information of other terminal devices;
A simple monitoring control apparatus comprising mode management means for determining switching between a monitoring mode and a control mode based on the above two functions. 前記伝送系ネットワークに接続される端末装置は、可搬型端末としたことを特徴とする請求項１に記載の簡易型監視制御装置。   2. The simplified monitoring control apparatus according to claim 1, wherein the terminal device connected to the transmission network is a portable terminal. 前記遠方監視制御装置親局から送信される情報を受信することで、前記遠方監視制御装置親局と前記計算機サーバ間の回線状態を認識する機能をさらに備え、これら機能に基づき、監視モードと制御モードの切替を判断するモード管理手段を備えることを特徴とする請求項１に記載の簡易型監視制御装置。   It further has a function of recognizing a line state between the remote monitoring control device master station and the computer server by receiving information transmitted from the remote monitoring control device master station, and based on these functions, a monitoring mode and control 2. The simplified monitoring control apparatus according to claim 1, further comprising mode management means for determining mode switching. 前記遠方監視制御装置親局から送信されるヘルスチェック情報を受信することで、前記遠方監視制御装置親局と前記計算機サーバ間の回線異常を認識する機能をさらに備え、この回線異常を認識した場合には、前記操作卓及び前記計算機サーバから前記制御対象装置は制御不能と判断し、前記伝送系ＬＡＮに制御モード許可信号を送信するようにしたことを特徴とする請求項１に記載の簡易型監視制御装置。   When the health check information transmitted from the remote monitoring control device master station is received, further comprising a function of recognizing a line abnormality between the remote monitoring control device master station and the computer server, when the line abnormality is recognized The simplified type according to claim 1, wherein the control target device is determined to be uncontrollable from the console and the computer server, and a control mode permission signal is transmitted to the transmission LAN. Supervisory control device.
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