JPH0475146A - Centralized supervisory and control system - Google Patents
Centralized supervisory and control systemInfo
- Publication number
- JPH0475146A JPH0475146A JP2188869A JP18886990A JPH0475146A JP H0475146 A JPH0475146 A JP H0475146A JP 2188869 A JP2188869 A JP 2188869A JP 18886990 A JP18886990 A JP 18886990A JP H0475146 A JPH0475146 A JP H0475146A
- Authority
- JP
- Japan
- Prior art keywords
- information
- polling
- terminal equipment
- priority
- centralized monitoring
- 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 claims description 14
- 238000000034 method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Debugging And Monitoring (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は集中監視制御方式に関し、特にポーリングによ
る情報収集の方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a centralized monitoring control system, and particularly to a system for collecting information by polling.
従来、この種の集中監視制御方式では、複数存在する端
末装置に対し固定周期でポーリングを行い情報収集を行
っていた。Conventionally, in this type of centralized monitoring control system, information was collected by polling a plurality of terminal devices at fixed intervals.
［発明が解決しようとする課題〕
上述した従来の集中監視制御方式は、複数存在する端末
装置の内、任意の端末装置が任意の時間、送信すべき情
報量が過密となった場合、ポーリング周期がすべての端
末装置で同一か、又は予め割振られた優先順位により固
定となっているため、瞬時的な情報の変化を検出し損な
う場合があり、さらに情報量が増えた場合、個々の端末
装置において情報を記憶しておくエリアが不足する状態
になるという欠点がある。[Problems to be Solved by the Invention] In the conventional centralized monitoring control method described above, when the amount of information to be transmitted by any terminal device among the plurality of terminal devices becomes overcrowded at any given time, the polling cycle is is the same for all terminal devices or is fixed due to a pre-allocated priority order, which may fail to detect instantaneous changes in information, and when the amount of information increases further, individual terminal devices The disadvantage is that there is a shortage of area for storing information.
本発明の目的は瞬時的な情報の変化の検呂及び個々の端
末装置の情報記憶エリアの不足を改善するようにした集
中監視制御方式を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a centralized monitoring and control system that can overcome the problem of instantaneous changes in information and the lack of information storage area of individual terminal devices.
〔課題を解決するための手段１
前記目的を達成するため、本発明の集中監視制御方式に
おいては、１つの集中監視制御装置から同一通信回線を
通して複数の端末装置が分岐接続されているシステムに
おいて、集中監視制御装置が各端末装置からポーリング
方式で情報収集を行う際に、収集した情報量により情報
量の多い端末装置については、優先してポーリング回数
を増やし情報収集を行うことにより、端末からの情報を
遅延なく収集するものである。[Means for Solving the Problems 1] In order to achieve the above object, in the centralized monitoring and control system of the present invention, in a system in which a plurality of terminal devices are branch-connected from one centralized monitoring and control device through the same communication line, When the centralized monitoring and control device collects information from each terminal device using the polling method, it gives priority to terminal devices with a large amount of information due to the amount of information collected, by increasing the number of polling times and collecting information from the terminal device. Information is collected without delay.
〔作用］
各端末装置からポーリングにより収集した情報の情報量
を瞬時に判定し、その判定した結果から情報量の多い順
に各端末装置に優先順位を付加し、優先順位によりポー
リング回数の増減を制御する。[Operation] Instantly determines the amount of information collected from each terminal device by polling, and based on the determined result, prioritizes each terminal device in descending order of the amount of information, and controls increase/decrease in the number of polling based on the priority. do.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発′明の集中監視制御方式を示す構成図であ
る。FIG. 1 is a block diagram showing the centralized monitoring control system of the present invention.
図において、ｌはマスタステーションとなる集中監視制
御装置、２は複数の端末装置Ｔｌ、 Ｔ２． Ｔ３゜〜
Ｔｎが分岐接続される通信回線、ＤＩ、 Ｄ２． Ｄ３
．〜Ｄｎはポーリングにより収集された各端末装置毎の
情報量であり、Ｎｏ、１−Ｎｏ、 ｎはポーリング情報
収集を示す。In the figure, l is a central monitoring and control device serving as a master station, 2 is a plurality of terminal devices Tl, T2. T3゜〜
Communication line to which Tn is branched and connected, DI, D2. D3
．． ~Dn is the amount of information collected for each terminal device by polling, and No, 1-No, and n indicate polling information collection.
最初に集中監視制御装置Ｉが各端末装置ＴＩ、 Ｔ２゜
Ｔ３．〜Ｔｎからポーリングにより収集した各情報量Ｄ
Ｉ、 Ｄ２． Ｄ３．〜Ｄｎを判定し、情報量の多い順
に優先順位を■、■、・・・■と付加する。次に付加さ
れた優先順位に従い、次回のポーリング時、優先順位■
の高い端末装置Ｔ２に対しポーリング回数を増加し、情
報収集を行う。First, the centralized monitoring and control device I controls each terminal device TI, T2゜T3. ~Amount of information D collected from Tn by polling
I, D2. D3. ~Dn is determined, and priorities are added as ■, ■, . . . ■ in order of the amount of information. According to the priority added next, at the next polling, the priority ■
The number of times of polling is increased for the terminal device T2 with a high value, and information is collected.
［発明の効果］
以上説明したように本発明は各端末装置からポーリング
にて情報収集した情報量により優先順位を付け、情報量
の多い端末装置を優先させポーリング回数を増加させる
ことにより、現在の状況に応じた効率的な情報収集を行
うことが可能であり、前述した問題点である瞬時的な情
報の変化の検出及び個々の端末装置の情報記憶エリアの
不足を改善することができる。[Effects of the Invention] As explained above, the present invention prioritizes the amount of information collected from each terminal device by polling, prioritizes the terminal device with a large amount of information, and increases the number of polling. It is possible to efficiently collect information according to the situation, and the above-mentioned problems of detecting instantaneous changes in information and lack of information storage area of individual terminal devices can be improved.
第１図は本発明の集中監視制御方式を示す構成図である
。FIG. 1 is a block diagram showing the centralized monitoring control system of the present invention.
Claims (1)
て複数の端末装置が分岐接続されているシステムにおい
て、集中監視制御装置が各端末装置からポーリング方式
で情報収集を行う際に、収集した情報量により情報量の
多い端末装置については、優先してポーリング回数を増
やし情報収集を行うことにより、端末からの情報を遅延
なく収集することを特徴とする集中監視制御方式。(1) In a system where multiple terminal devices are branch-connected from one centralized monitoring and control device through the same communication line, the amount of information collected when the centralized monitoring and control device collects information from each terminal device by polling method. This centralized monitoring control method is characterized by collecting information from terminals without delay by giving priority to terminal devices with a large amount of information by increasing the number of times of polling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2188869A JPH0475146A (en) | 1990-07-17 | 1990-07-17 | Centralized supervisory and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2188869A JPH0475146A (en) | 1990-07-17 | 1990-07-17 | Centralized supervisory and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475146A true JPH0475146A (en) | 1992-03-10 |
Family
ID=16231299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2188869A Pending JPH0475146A (en) | 1990-07-17 | 1990-07-17 | Centralized supervisory and control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475146A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0652523A1 (en) * | 1993-11-10 | 1995-05-10 | Nec Corporation | Remote monitoring system |
| JP2011193064A (en) * | 2010-03-12 | 2011-09-29 | Hitachi Information & Control Solutions Ltd | System, method, and program for polling transmission |
| JP2014192789A (en) * | 2013-03-28 | 2014-10-06 | Dainippon Printing Co Ltd | Communication device, communication method, communication device program and communication system |
-
1990
- 1990-07-17 JP JP2188869A patent/JPH0475146A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0652523A1 (en) * | 1993-11-10 | 1995-05-10 | Nec Corporation | Remote monitoring system |
| US5586056A (en) * | 1993-11-10 | 1996-12-17 | Nec Corporation | Remote monitoring system using a polling level table and a monitored station number table |
| JP2011193064A (en) * | 2010-03-12 | 2011-09-29 | Hitachi Information & Control Solutions Ltd | System, method, and program for polling transmission |
| JP2014192789A (en) * | 2013-03-28 | 2014-10-06 | Dainippon Printing Co Ltd | Communication device, communication method, communication device program and communication system |
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