JP2592676B2 - System switching method - Google Patents
System switching methodInfo
- Publication number
- JP2592676B2 JP2592676B2 JP1097360A JP9736089A JP2592676B2 JP 2592676 B2 JP2592676 B2 JP 2592676B2 JP 1097360 A JP1097360 A JP 1097360A JP 9736089 A JP9736089 A JP 9736089A JP 2592676 B2 JP2592676 B2 JP 2592676B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- control
- standby
- slave
- working
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、系切り替え方式に係り、システム内の主装
置及び、従装置がそれぞれ独立に二重化されている場合
の系切り替え方式に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system switchover system, and more particularly to a system switchover system in which a main device and a slave device in a system are independently duplicated. .
従来の系切り替え方式は、特公昭63−34493に記載の
ように系切り替えの管理は、従装置にて行なう方式とな
っていた。In the conventional system switching method, as described in JP-B-63-34493, the system switching management is performed by a slave device.
従来技術では、主装置及び、従装置がそれぞれ二重化
されていて分散制御システムでない場合には、従装置側
で系を管理している為に、主装置と従装置、従装置と従
装置間に制御信号があり複雑なものとなった。又、部品
の実装が困難になるという問題が生じた。In the prior art, when the master device and the slave device are each duplicated and not a distributed control system, the system is managed on the slave device side, so the master device and the slave device, and the slave device and the slave device are controlled. There were control signals and it was complicated. In addition, there has been a problem that mounting of components becomes difficult.
本発明の目的は、系切り替えの制御装置を設けること
によって上記の欠点を除去し、主装置及び従装置の系の
管理を容易に行なうことができる系切り替え方式を提供
することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a system switching system that eliminates the above-mentioned disadvantages by providing a system switching control device and that can easily manage the systems of a main device and a slave device.
上記目的は、本発明によれば、現用、予備の２つの状
態を持つ二重化された主装置及び、従装置さらに主装置
と従装置の現用、予備の切り替え制御を独立に行なう制
御装置とから構成されるシステムにおいて、上記現用主
装置からの系切り替え要求を上記制御装置が受信して系
の切り替えを許容するとき現用主装置には、予備制御信
号を送出し予備主装置への切り替えを行なう。予備主装
置には、現用制御信号を送出し現用主装置への切り替え
を行なう。又、これとは、独立に現用従装置も同様に切
り替えることを特徴とする系切り替え方式を提供するこ
とにより達成される。According to the present invention, the above object comprises a duplexed main unit having two working and standby states, a slave unit, and a control unit for independently controlling the switching between the working unit and the standby unit between the working unit and the slave unit. In the system, when the control device receives the system switching request from the working main device and permits the system switching, a standby control signal is sent to the working main device to perform switching to the spare main device. An active control signal is sent to the standby main unit to switch to the active main unit. This is achieved by providing a system switching method characterized in that the active slave device is also switched independently in a similar manner.
本発明は、主装置のマイクロプロセッサに対しては、
最終的結果として現用又は、予備の情報が入力される
為、系切り替えが迅速に行なわれ、また、マイクロプロ
セッサの負担が大きく軽減される。従装置においても従
装置間の信号の送受がない為、系切り替えが迅速に行な
われる。The present invention relates to the microprocessor of the main device,
Since the working or backup information is input as a final result, system switching is performed quickly and the load on the microprocessor is greatly reduced. Since there is no transmission / reception of signals between the slave devices, the system switching is performed quickly.
第１図は、本発明の電子交換器における実施例を示し
たブロック図である。図中のＡは、系切り替えを管理す
る制御装置、B0,B1は、マイクロプロセッサを有する主
装置、C0,C1は、従装置である。FIG. 1 is a block diagram showing an embodiment of the electronic exchanger of the present invention. In the figure, A is a control device for managing system switching, B0 and B1 are master devices having a microprocessor, and C0 and C1 are slave devices.
図では、B0が現用主装置、B1が予備主装置である場合
で、このときゲート５の出力は、オフで現用制御信号を
出力、ゲート15は、オンで予備制御信号を出力してい
る。In the figure, B0 is the active main unit and B1 is the standby main unit. At this time, the output of the gate 5 is off to output the active control signal, and the gate 15 is on to output the standby control signal.
先ず、現用主装置B0において異常が発生すると障害検
出回路22に障害として検出され障害信号が系切り替え要
求信号として制御装置Ａ内の信号処理回路１に入力され
る。この時、信号処理回路１において主装置B0の現用か
ら予備への切り替えが許可されれば、その情報が信号処
理回路１から切り替え制御回路２へ入力されゲート５の
出力は、オンし、予備制御信号となる。これにより主装
置B0の系切り替えが行なわれたことを意味する。この予
備制御信号は、インタフェース回路３を経て現用主装置
B0のマイクロプロセッサ21に通知され主装置B0は、予備
主装置B0として動作をはじめる。また、この時、ゲート
５の出力がオンされるとゲート15の出力がオフされ現用
制御信号となりこれにより主装置B1の系切り替えが行な
われたことを意味する。この現用制御信号は、インタフ
ェース回路13を経て予備主装置B1のマイクロプロセッサ
31に通知され主装置B1は、現用主装置B1として動作をは
じめる。First, when an abnormality occurs in the active main unit B0, it is detected as a failure by the failure detection circuit 22, and a failure signal is input to the signal processing circuit 1 in the control device A as a system switching request signal. At this time, if the switching of the main unit B0 from working to standby is permitted in the signal processing circuit 1, the information is input from the signal processing circuit 1 to the switching control circuit 2, the output of the gate 5 is turned on, and the preliminary control is performed. Signal. This means that the system switching of the main device B0 has been performed. This preliminary control signal passes through the interface circuit 3 to the working main unit.
The main device B0 is notified to the microprocessor 21 of B0 and starts operating as the standby main device B0. Further, at this time, when the output of the gate 5 is turned on, the output of the gate 15 is turned off and becomes the working control signal, which means that the system switching of the main device B1 has been performed. This working control signal is passed through the interface circuit 13 to the microprocessor of the standby main unit B1.
The main device B1 is notified to 31 and starts operating as the active main device B1.
但し、障害信号が系切り替え要求信号として信号処理
回路１に入力され、この時、信号処理回路１において主
装置B0の現用から予備への切り替えが許可されない場合
には、信号処理回路１から切り替え制御回路２に対して
は、情報が伝達されず系切り替えは、行なわれない。However, if the failure signal is input to the signal processing circuit 1 as a system switching request signal, and if the switching of the main device B0 from the working mode to the standby mode is not permitted in the signal processing circuit 1, the switching control is performed by the signal processing circuit 1. No information is transmitted to circuit 2 and system switching is not performed.
従装置C0,C1の系切り替えに対しても主装置B0,B1の系
切り替えと同様な方式で行なわれるため説明は、省略す
る。The system switching of the slave devices C0 and C1 is performed in the same manner as the system switching of the main devices B0 and B1, and the description is omitted.
以上の様に、本発明によれば、主装置B0,B1のマイク
ロプロセッサ21,31に対しては、最終的結果として現用
制御信号、予備制御信号の情報が入力される為に、系切
り替えが迅速に行なわれ、また、系切り替え時のマイク
ロプロセッサ21,31の負担が大きく軽減されるという効
果がある。さらに従装置C0,C1においても同様で、従装
置C0と従装置C1間の信号の送受がなく系切り替えが迅速
に行なわれるという効果がある。As described above, according to the present invention, since the information of the working control signal and the standby control signal is input as the final result to the microprocessors 21 and 31 of the main devices B0 and B1, system switching is performed. This is performed quickly, and the load on the microprocessors 21 and 31 during system switching is greatly reduced. Further, the same applies to the slave devices C0 and C1, and there is an effect that the system switching is rapidly performed without transmitting / receiving a signal between the slave devices C0 and C1.
第１図は、本発明の電子交換器における実施例を示すブ
ロック図である。 Ａ……制御装置、B0,B1……主装置、C0,C1……従装置、
2,12……切り替え制御回路、21,31……マイクロプロセ
ッサ、22,32,44,54……障害検出回路、1,11……信号処
理回路FIG. 1 is a block diagram showing an embodiment of the electronic exchanger of the present invention. A: control device, B0, B1: master device, C0, C1: slave device,
2,12 switching control circuit, 21,31 microprocessor, 22,32,44,54 fault detection circuit 1,11 signal processing circuit
Claims (1)
た主装置及び従装置と、それら現用、予備の状態を制御
する制御装置とによって構成されるシステムにおいて、 前記主装置及び従装置の各々に、 自装置が現用の状態にある場合に、障害発生を検出した
とき、前記制御装置に対して障害信号を送出する障害検
出回路と、 前記制御装置からの現用制御信号を検出すると、現用装
置としての動作制御を行ない、かつ、前記制御装置から
の予備制御信号を検出すると、予備装置としての動作制
御を行なう処理装置とを備え、 前記制御装置に、 前記主装置からの前記障害信号を検出したとき、当該主
装置を、現用装置から予備装置へ切り替えることが可能
か判断し、切り替え可能であれば第１の切替信号を送出
する第１の信号処理回路と、 前記従装置からの前記障害信号を検出したとき、当該従
装置を、現用装置から予備装置へ切り替えることが可能
か判断し、切り替え可能であれば第２の切替信号を送出
する第２の信号処理回路と、 前記第１の切替信号を受信すると、前記主装置の処理装
置に対して予備制御信号を送出すると共に、前記従装置
の処理装置に対して現用制御信号を送出し、かつ、前記
第２の切替信号を受信すると、前記従装置の処理装置に
対して予備制御信号を送出すると共に、前記主装置の処
理装置に対して現用制御信号を送出する切替回路とを備
え、 前記現用制御信号又は前記予備制御信号を、前記制御装
置から前記主装置及び前記従装置に対し、それぞれ独立
に送出して系を切り替えることを特徴とする系切り替え
方式。1. A system comprising a duplex master device and a slave device having two working and standby states and a control device for controlling the working and standby states, wherein the master device and the slave device are In each case, when the own device is in a working state, when a fault is detected, a fault detecting circuit for sending a fault signal to the control device, and when a working control signal from the control device is detected, A processing device that performs operation control as a device and, when a preliminary control signal from the control device is detected, performs processing control as a standby device, wherein the control device transmits the fault signal from the main device. Upon detection, it is determined whether the main device can be switched from the active device to the standby device, and if the main device can be switched, a first signal processing circuit for transmitting a first switching signal; A second signal processing circuit that, when detecting the failure signal from the slave device, determines whether the slave device can be switched from the active device to the standby device, and sends a second switching signal if the switch is possible; Receiving the first switching signal, sends a preliminary control signal to the processing device of the master device, sends an active control signal to the processing device of the slave device, and A switching circuit that sends a standby control signal to the processing device of the slave device, and sends a working control signal to the processing device of the master device. A system switching method, wherein the preliminary control signal is transmitted independently from the control device to the master device and the slave device to switch the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1097360A JP2592676B2 (en) | 1989-04-19 | 1989-04-19 | System switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1097360A JP2592676B2 (en) | 1989-04-19 | 1989-04-19 | System switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02277321A JPH02277321A (en) | 1990-11-13 |
| JP2592676B2 true JP2592676B2 (en) | 1997-03-19 |
Family
ID=14190334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1097360A Expired - Lifetime JP2592676B2 (en) | 1989-04-19 | 1989-04-19 | System switching method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592676B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63240220A (en) * | 1987-03-27 | 1988-10-05 | Fujitsu Ltd | Control system for switching supervision |
-
1989
- 1989-04-19 JP JP1097360A patent/JP2592676B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02277321A (en) | 1990-11-13 |
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