JPH02230337A - System for controlling terminal of centralized monitoring system - Google Patents
System for controlling terminal of centralized monitoring systemInfo
- Publication number
- JPH02230337A JPH02230337A JP1051195A JP5119589A JPH02230337A JP H02230337 A JPH02230337 A JP H02230337A JP 1051195 A JP1051195 A JP 1051195A JP 5119589 A JP5119589 A JP 5119589A JP H02230337 A JPH02230337 A JP H02230337A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- terminal equipment
- communication line
- centralized monitoring
- reset signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 238000012806 monitoring device Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000011084 recovery Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000032368 Device malfunction Diseases 0.000 description 1
Landscapes
- Debugging And Monitoring (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は集中監視システムの端末制御方式に関し、特に
端末装置異常時の自動復旧を行う集中監視システムの端
末制御方式に関する．
〔従来の技術〕
従来、端末装置異常時の自動復旧方式としてはウオッチ
ドッグタイマ監視方式、又はバスタイムアウトタイマ監
視方式等がある．
〔発明が解決しようとする課題〕
上述した従来の端末装置異常時の自動復旧方式は、設計
時にあらかじめ機能として装置に組込んでおかなければ
ならず、既に稼働中の装置に採用することは困難である
という問題点があった．本発明の目的は、端末装置の自
動復旧化が容易に可能であり、端末装置の稼働率を高め
ることができる集中監視システムの端末制御方式を提供
することにある．
〔課題を解決するための手段〕
本発明の集中監視システムの端末制御方式は、集中監視
装置に通信回線を介して端末装置が接続され、前記集中
監視装置からポーリング・セレクティング方式により前
記端末装置の制御が行われる集中監視システムの端末制
御方式において、前記集中監視装置と端末装置との送受
信信号を通信回線上で常時監視し、あらかじめ定められ
た時間内に前記端末装置が前記集中監視装置に応答信号
を返送しないとき、前記端末装置に対し、リセット信号
を出力し、前記端末装置を再スタートさせるように構成
されている．
〔実施例〕
次に、本発明の実施例について図面を参照して説明する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a terminal control method for a centralized monitoring system, and more particularly to a terminal control method for a centralized monitoring system that automatically recovers when a terminal device abnormality occurs. [Prior Art] Conventionally, there are watchdog timer monitoring methods, bus timeout timer monitoring methods, etc. as automatic recovery methods when a terminal equipment abnormality occurs. [Problem to be solved by the invention] The above-mentioned conventional automatic recovery method when a terminal device malfunctions must be incorporated into the device as a function in advance at the time of design, and it is difficult to apply it to devices that are already in operation. There was a problem with this. SUMMARY OF THE INVENTION An object of the present invention is to provide a terminal control method for a centralized monitoring system that allows automatic recovery of terminal devices easily and increases the operating rate of the terminal devices. [Means for Solving the Problems] In the terminal control method of the central monitoring system of the present invention, a terminal device is connected to a central monitoring device via a communication line, and the terminal device is controlled from the central monitoring device by a polling/selecting method. In a terminal control method of a centralized monitoring system in which control is performed, signals transmitted and received between the central monitoring device and the terminal device are constantly monitored on a communication line, and the terminal device is connected to the central monitoring device within a predetermined time. When the response signal is not returned, the terminal device is configured to output a reset signal to restart the terminal device. [Example] Next, an example of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例のブロック図である．
第１図の集中監視システムの端末制御方式は、集中監視
装置７、通信回線６を介して集中監視装置７と接続され
るデータ端末１、データ端末１側に設置され通信回線６
に接続されて送受信信号を監視するオートリスタート装
置２を示す．通信回線６に接続されたオートリスタート
装置２は、通信回線６上の送受信信号を監視信号入力端
子５より入力し、常時監視を行う。そして、集中監視装
置７からの信号受信に対し、あらかじめ定められた時間
内に集中監視装置７に対しデータ端末１から応答信号が
返送されなかった場合、オートリスタート装置２は、デ
ータ端末１の外部リセット信号入力端子３に対してリセ
ット信号出力端子４からリセット信号を出力し、データ
端末１を再スタートさせる．
〔発明の効果〕
以上説明したように、本発明は、対象の端末装置にオー
トリスタート装置を接続することにより目的を実現でき
るため、新規設計，既設計を問わず装置の自動復旧化が
容易であり、端末装置の稼働率を高めることができると
いう効果を有する。FIG. 1 is a block diagram of an embodiment of the present invention. The terminal control system of the centralized monitoring system shown in FIG.
This shows an auto-restart device 2 that is connected to and monitors transmitted and received signals. The auto-restart device 2 connected to the communication line 6 inputs the transmitted and received signals on the communication line 6 from the monitoring signal input terminal 5, and performs constant monitoring. If a response signal is not returned from the data terminal 1 to the central monitoring device 7 within a predetermined time in response to the signal received from the central monitoring device 7, the auto-restart device 2 A reset signal is output from the reset signal output terminal 4 to the reset signal input terminal 3, and the data terminal 1 is restarted. [Effects of the Invention] As explained above, the purpose of the present invention can be achieved by connecting an auto-restart device to a target terminal device, and therefore it is easy to automatically restore a device regardless of whether it is a new design or an existing design. This has the effect of increasing the operating rate of the terminal device.
第１図は本発明の一実施例のブロック図である．
１・・・データ端末、２・・・オートリスタート装置、
３・・・外部リセット信号入力端子、４・・−リセット
信号出力端子、５・・・監視信号入力端子、６・・・通
信回線、７・・・集中監視装置。FIG. 1 is a block diagram of an embodiment of the present invention. 1...Data terminal, 2...Auto restart device,
3... External reset signal input terminal, 4...-reset signal output terminal, 5... Monitoring signal input terminal, 6... Communication line, 7... Central monitoring device.
Claims (1)
前記集中監視装置からポーリング・セレクティング方式
により前記端末装置の制御が行われる集中監視システム
の端末制御方式において、前記集中監視装置と端末装置
との送受信信号を通信回線上で常時監視し、あらかじめ
定められた時間内に前記端末装置が前記集中監視装置に
応答信号を返送しないとき、前記端末装置に対し、リセ
ット信号を出力し、前記端末装置を再スタートさせるこ
とを特徴とする集中監視システムの端末制御方式。A terminal device is connected to the central monitoring device via a communication line,
In a terminal control method of a centralized monitoring system in which the terminal device is controlled from the central monitoring device by a polling/selecting method, signals sent and received between the central monitoring device and the terminal device are constantly monitored on a communication line, and a predetermined A terminal of a central monitoring system, characterized in that when the terminal device does not return a response signal to the central monitoring device within a set time, a reset signal is output to the terminal device to restart the terminal device. control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1051195A JPH02230337A (en) | 1989-03-02 | 1989-03-02 | System for controlling terminal of centralized monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1051195A JPH02230337A (en) | 1989-03-02 | 1989-03-02 | System for controlling terminal of centralized monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02230337A true JPH02230337A (en) | 1990-09-12 |
Family
ID=12880099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1051195A Pending JPH02230337A (en) | 1989-03-02 | 1989-03-02 | System for controlling terminal of centralized monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02230337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008090746A (en) * | 2006-10-04 | 2008-04-17 | Fujitsu Component Ltd | Starting device |
-
1989
- 1989-03-02 JP JP1051195A patent/JPH02230337A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008090746A (en) * | 2006-10-04 | 2008-04-17 | Fujitsu Component Ltd | Starting device |
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