JPS6361339A - Information transmitting device - Google Patents

Information transmitting device

Info

Publication number
JPS6361339A
JPS6361339A JP61206186A JP20618686A JPS6361339A JP S6361339 A JPS6361339 A JP S6361339A JP 61206186 A JP61206186 A JP 61206186A JP 20618686 A JP20618686 A JP 20618686A JP S6361339 A JPS6361339 A JP S6361339A
Authority
JP
Japan
Prior art keywords
changeover
data
standby
input
switching
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
Application number
JP61206186A
Other languages
Japanese (ja)
Inventor
Yukinobu Kawamura
川村　行延
Takashi Yura
由良　隆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP61206186A priority Critical patent/JPS6361339A/en
Publication of JPS6361339A publication Critical patent/JPS6361339A/en
Pending legal-status Critical Current

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  • Hardware Redundancy (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To assure the continuity of data immediately after a changeover by storing once current system data into an input output module for an inter- system link and thereafter, transferring them to a standby system when a changeover is executed from the current system and the standby system. CONSTITUTION:A changeover request signal from a manual system changeover switch 8 generates an interruption through system changeover interrupting modules 2a and 2b to CPUs 6a and 6b. The CPUs 6a and 6b judge from changeover condition input devices 5a and 5b whether the connection of a switch 1 is the current system or the standby system. At the time of the current system, the data (receiving data, transmitting data, transmitting waiting address, etc.,) for inter-system link are outputted to an input module 3a for an inter-system link, and thereafter, a system changeover signal is outputted to system changeover output devices 4a and 4b and shifted from the current system to the standby system. At the time of the standby system, the data are received from the input output module 3b, set to a main memory device 7b and the shifting waiting from the standby system to the current system is obtained. Thus, the continuity of the data immediately after the changeover is secured.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、情報伝送装置、特に現用系待機系を有する
二重系の情報伝送装置に関するものであるう 〔従来の技術〕 第３図は昭和５８年１月三菱電機発行のカタログ「三菱
広域監視制御システム」のシングルプロセッサによる二
重化方式のハードウェア構成図であり、図において、１
１＋は入出力バス切シ替え装置、（６！ｌ）　〜（６ｂ
）は中央処理装置、（７ａ）　〜（７ｂ）は主記憶装置
、（９）は外部出力器、凹は外部入力器、（１１）は並
直列変換器、ａ、２１は直並列変換器である。入力デー
タは直並列変換器（１７Ｊ及び外部入出力器αＱを介し
て入出力バス切り替え装ｆｆ１ｌｌ＋に接続されている
主記憶装置ｔ　（７ａ）に格納される。又出力データは
入出力バス切り替え装置（１）に接続されている主記憶
装置（７ａ）より並直変換器圓及び外部出力器（９）を
介して外部に出力される。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an information transmission device, particularly a dual system information transmission device having an active system and a standby system. This is a hardware configuration diagram of a duplex system using a single processor in the catalog "Mitsubishi Wide Area Monitoring and Control System" published by Mitsubishi Electric in January 1982.
1+ is an input/output bus switching device, (6!l) ~ (6b
) is the central processing unit, (7a) to (7b) are the main memory, (9) is the external output device, concave is the external input device, (11) is the parallel-to-serial converter, and a and 21 are the serial-to-parallel converters. be. The input data is stored in the main memory device t (7a) connected to the input/output bus switching device ff1ll+ via the serial/parallel converter (17J and external input/output device αQ). The main storage device (7a) connected to (1) is outputted to the outside via the parallel-to-serial converter circle and the external output device (9).

尚、系の切り替えは、入出力バス切替装置（１）によっ
て行なわれ、待機系よシ現用系に切シ替わった時点に、
主記憶装Ｒ（７ａ）−（７１））及び、入出力バスにつ
ながっている入出力器のイニシャライズ後正常動作を行
なうものである。Note that system switching is performed by the input/output bus switching device (1), and at the time of switching from the standby system to the active system,
After initialization of the main memory R(7a)-(71)) and the input/output devices connected to the input/output bus, normal operation is performed.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来の情報伝送装置は以上のように構成されているので
、系の切り替え時点でのデータの連続性が無く、時分割
多重で出力している場合には、データの同期性が失われ
る。Since the conventional information transmission device is configured as described above, there is no data continuity at the time of system switching, and data synchronization is lost when output is performed by time division multiplexing.

また、待機系の主記憶装置には、データの蓄積が行なわ
れていないため、出力データの欠落時間が長くなる。Furthermore, since data is not stored in the standby main storage device, the time required for output data to be lost becomes longer.

この発明は上記のような問題点を解消するためになされ
たもので、二重系の切シ替え時に出力データの連続性を
保証し、欠落時間を最小とする情報伝送装置を得ること
を目的とする。This invention was made to solve the above-mentioned problems, and its purpose is to provide an information transmission device that guarantees continuity of output data when switching between duplex systems and minimizes dropout time. shall be.

〔問題点を解決するための手段〕[Means for solving problems]

この発明にかかわる情報伝送装置は、現用系から待機系
への系切り替え前に、現用系から待機系に系間リンクを
行なうデータベース転送し、転送後に系を切り替え、こ
の切替え後に待機系へ上記データベースを転送するもの
である。The information transmission device according to the present invention transfers a database for linking between systems from the active system to the standby system before system switching from the active system to the standby system, switches the systems after the transfer, and transfers the database to the standby system after this switching. It is intended to transfer.

〔作用〕[Effect]

この発明においては、糸切シ替え要求信号受付は時に現
用系から待機系への系間リンクにより、データベースが
転送され系切り替え後の正常処理が速くなる。In this invention, when receiving a thread switching request signal, the database is transferred by an intersystem link from the active system to the standby system, which speeds up normal processing after system switching.

〔実施例〕〔Example〕

第１図はこの発明による情報伝送装置ｔ（二重系）の一
実施例の構成図、第２図は系切り替え要求時の動作フロ
ーチャートである。図に詔いて、（１）は入出力バス切
替え装置、（２ａ）〜（２ｂ）は系切り替え割り込み受
信モジュール、（３ａ）〜（３ｂ）は系間リンク用入出
カモジュール、（４ａ）〜（４ｂ）は系切り替え出力器
、（５ａ）〜（５ｂ）は切シ替え状態入力器、（６ａ）
　〜（６ｂ）は中央処理装置、（７ａ）　〜（７ｂ）は
主記憶装置、（８）は手動切シ替えスイッチ、（９）は
外部出力器、Ｑ（ｌは外部入力器、αυは並直列変換器
、（ｌｚは直並列変換器である。FIG. 1 is a configuration diagram of an embodiment of the information transmission device t (duplex system) according to the present invention, and FIG. 2 is an operation flowchart when a system switching request is made. In the figure, (1) is an input/output bus switching device, (2a) to (2b) are system switching interrupt reception modules, (3a) to (3b) are input/output modules for intersystem links, and (4a) to ( 4b) is a system switching output device, (5a) to (5b) are switching status input devices, (6a)
~(6b) is the central processing unit, (7a) ~(7b) is the main memory, (8) is the manual changeover switch, (9) is the external output device, Q(l is the external input device, αυ is the parallel Serial converter, (lz is a serial-parallel converter.

次に上記実施例の動作を第１図〜第２図を参照しながら
説明する。第２図は系切り替え要求時の動作フローチャ
ートである。手動糸切シ替えスイッチ（８）よシの切シ
替え要求信号が系切り替え割込み受信モジュール（キ）
〜（２ｂ）を通して中央処理装置１　（６ａ）〜（６ｂ
）に対して割込みを発生させる。中央処理装置ｍ　（６
ａ）〜（６ｂ）は切り替え状態入力器（ム）〜（５ｂ）
より現用系か待機系を判断し、現用系であれば系間りン
ク用のデータ（受信データ、送信データ、送信待ちアド
レス等）を系間リンク用入出カモジュール（３ａ）に出
力後、系切り賛え信号を系切り替え出力器（４ａ）〜（
４ｂ）に出力する事により現用系から待機系に移行する
。又、待機系であれば、系間リンク用入出カモジュール
（３ｂ）よシデータを受信し、該当アドレスに受信した
データを主記憶族ｆｉｔ　（７ｂ）にセットし、待機系
から現用系への移行待ちとなる。Next, the operation of the above embodiment will be explained with reference to FIGS. 1 and 2. FIG. 2 is an operation flowchart when requesting system switching. The switching request signal from the manual thread switching switch (8) is sent to the system switching interrupt receiving module (K).
- (2b) through central processing unit 1 (6a) - (6b
) generates an interrupt. Central processing unit m (6
a) to (6b) are switching status input devices (mu) to (5b)
The active system or the standby system is determined, and if it is the active system, the system System switching output device (4a) ~ (
By outputting to 4b), the active system is transferred to the standby system. In addition, if it is a standby system, the intersystem link input/output module (3b) receives the data, sets the received data to the corresponding address in the main memory group fit (7b), and transitions from the standby system to the active system. There will be a wait.

なお、上記実施例では外部入出力器が現用系と待機系で
共用しているが、第４図で示すように外部入出力器をそ
れぞれの中央処理装ｆ！ｉＥＫ接続した回線の切り替え
方式でも同様の効果が期待できる。In the above embodiment, the external input/output device is shared between the active system and the standby system, but as shown in FIG. 4, the external input/output device is connected to each central processing unit f! A similar effect can be expected using the iEK-connected line switching method.

但しこの場合、ハードウェアで同期をとっている出力デ
ータに関しては、出力データの連続性は保証できない。However, in this case, the continuity of output data cannot be guaranteed for output data that is synchronized by hardware.

〔発明の効果〕〔Effect of the invention〕

以上のようにこの発明によれば、系の切シ替え直前に現
用系から待機系にデータベースの転送な行なうように構
成したので、系切り替え要求の無い時の中央処理装置の
負荷が軽減し、糸切り替え直後の出力データの連続性が
保証できる。As described above, according to the present invention, the database is transferred from the active system to the standby system immediately before system switchover, so the load on the central processing unit when there is no system switchover request is reduced. Continuity of output data can be guaranteed immediately after thread switching.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明による情報伝送装置のハードウェア構
成図、第２図は第１図に示す系切り替え時の動作フロー
、第３図は従来の装置のハードウェア構成図、第４図は
この発明の他の実施例を示すハードウェア構成図を示す
。 図において、＋Ｉ＋は入出力バス切り替え装置、（２ａ
）〜（２ｂ）は系切り替え割り込み受信モジュール、　
（３ａ）〜（３ｂ）は系間リンク用入出カモジュール、
（，４ａ）　〜（４ｂ）は糸切シ替え出力器、（５１）
　〜（５ｂ）は切シ替え状態入力器、（６ａ）〜（６ｂ
）は中央処理装置、（７ａ）〜（７ｂ）は主記憶装置、
（８）は手動糸切シ替えスイッチ、＋９１は外部出力器
、σｌは外部入力器、αυは並直列変換器、Ｃ１２は直
並列変換器を示す。 向、各図中同一符号は同−又は相当部分を示す。Fig. 1 is a hardware configuration diagram of an information transmission device according to the present invention, Fig. 2 is an operational flow during system switching shown in Fig. 1, Fig. 3 is a hardware configuration diagram of a conventional device, and Fig. 4 is a diagram of this system. A hardware configuration diagram showing another embodiment of the invention is shown. In the figure, +I+ is an input/output bus switching device, (2a
) to (2b) are system switching interrupt reception modules,
(3a) to (3b) are input/output modules for intersystem links;
(,4a) to (4b) are thread cutting switch output devices, (51)
~(5b) are switching status input devices, (6a) ~(6b)
) is the central processing unit, (7a) to (7b) are the main storage devices,
(8) is a manual thread changeover switch, +91 is an external output device, σl is an external input device, αυ is a parallel-serial converter, and C12 is a serial-parallel converter. The same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] それぞれｃｐｕとメモリを有し入力信号を処理して出力
する現用系と待期系との二重系の処理装置と、上記入出
力信号を上記現用系と待機系の処理装置のいずれかに切
替える切替装置を設けた二重系の情報伝送装置において
、上記現用系から待機系の処理装置の切替え時に、上記
現用系のデータをストアして切替えた後、このストアし
たデータを待機系の処理装置へ転送する系間リンク用入
出力モジュールを備えたことを特徴とする情報伝送装置
。A dual system processing device of an active system and a standby system each having a CPU and memory and processing and outputting input signals, and switching the input/output signal to either the active system or the standby system processing device. In a dual system information transmission device equipped with a switching device, when switching from the active system to the standby system processing unit, the data of the active system is stored and switched, and then this stored data is transferred to the standby system processing unit. An information transmission device characterized by comprising an input/output module for an intersystem link for transferring information to.
JP61206186A 1986-09-01 1986-09-01 Information transmitting device Pending JPS6361339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61206186A JPS6361339A (en) 1986-09-01 1986-09-01 Information transmitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61206186A JPS6361339A (en) 1986-09-01 1986-09-01 Information transmitting device

Publications (1)

Publication Number Publication Date
JPS6361339A true JPS6361339A (en) 1988-03-17

Family

ID=16519235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61206186A Pending JPS6361339A (en) 1986-09-01 1986-09-01 Information transmitting device

Country Status (1)

Country Link
JP (1) JPS6361339A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01223859A (en) * 1988-03-02 1989-09-06 Nec Corp Data communication processing equipment duplex system
JPH05244225A (en) * 1992-02-28 1993-09-21 Nippon Telegr & Teleph Corp <Ntt> Uninterruptible system changeover method
US5396485A (en) * 1992-09-01 1995-03-07 Hitachi, Ltd. Information communication system for point-to-point communication and point-to-multipoint communication using same lines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01223859A (en) * 1988-03-02 1989-09-06 Nec Corp Data communication processing equipment duplex system
JPH05244225A (en) * 1992-02-28 1993-09-21 Nippon Telegr & Teleph Corp <Ntt> Uninterruptible system changeover method
US5396485A (en) * 1992-09-01 1995-03-07 Hitachi, Ltd. Information communication system for point-to-point communication and point-to-multipoint communication using same lines

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