JPS57155649A - Centralized controlling system - Google Patents

Centralized controlling system

Info

Publication number
JPS57155649A
JPS57155649A JP56041360A JP4136081A JPS57155649A JP S57155649 A JPS57155649 A JP S57155649A JP 56041360 A JP56041360 A JP 56041360A JP 4136081 A JP4136081 A JP 4136081A JP S57155649 A JPS57155649 A JP S57155649A
Authority
JP
Japan
Prior art keywords
controller
centralized
processor
svp1
cpu0
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.)
Granted
Application number
JP56041360A
Other languages
Japanese (ja)
Other versions
JPS6134171B2 (en
Inventor
Hideji Yamashita
Toshio Kunigami
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56041360A priority Critical patent/JPS57155649A/en
Publication of JPS57155649A publication Critical patent/JPS57155649A/en
Publication of JPS6134171B2 publication Critical patent/JPS6134171B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To maintain the high reliability of a central processor in an economical way, by adding a small-scale secondary centralized controller to a main centralized controller that gives the centralized control to the central processor having a redundant constitution. CONSTITUTION:A call applied to an electronic switchboard is processed via a channel system SP that is controlled by a central processor CP. The reliability of the processor CP is increased by forming a queuing redundant system with CPU0 and CPU1 having an input/output device IO respectively. Both the CPU0 and CPU1 are connected to a centralized controller SVP0 to receive the centralized control. In addition, a secondary centralized controll controller SVP1 contains only the initialization and fault countermeasure functions which are indispensable to the operation of the processor CP. When a fault is detected at the controller SVP0, a changeover relay AL is driven to connect the CPU0 and CPU1 to the controller SVP1 for the centralized control. The controller SVP1 incorporates the functions indispensable to the operation to give no effect to the operation of the processor CP.
JP56041360A 1981-03-20 1981-03-20 Centralized controlling system Granted JPS57155649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041360A JPS57155649A (en) 1981-03-20 1981-03-20 Centralized controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041360A JPS57155649A (en) 1981-03-20 1981-03-20 Centralized controlling system

Publications (2)

Publication Number Publication Date
JPS57155649A true JPS57155649A (en) 1982-09-25
JPS6134171B2 JPS6134171B2 (en) 1986-08-06

Family

ID=12606308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041360A Granted JPS57155649A (en) 1981-03-20 1981-03-20 Centralized controlling system

Country Status (1)

Country Link
JP (1) JPS57155649A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083422A2 (en) * 1981-12-31 1983-07-13 International Business Machines Corporation Cross checking among service processors in a multi-processor system
JPS62174839A (en) * 1986-01-28 1987-07-31 Nec Corp Recognition system for normalcy of subsystem in duplex system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083422A2 (en) * 1981-12-31 1983-07-13 International Business Machines Corporation Cross checking among service processors in a multi-processor system
JPS62174839A (en) * 1986-01-28 1987-07-31 Nec Corp Recognition system for normalcy of subsystem in duplex system

Also Published As

Publication number Publication date
JPS6134171B2 (en) 1986-08-06

Similar Documents

Publication Publication Date Title
SE8402494D0 (en) Machine controller
JPS57155649A (en) Centralized controlling system
EP0141246A3 (en) Method for the operation of a multiprocessor controller, especially for the central control unit of a telephone switching system
JPS5614302A (en) Process control system
JPS57148479A (en) Apparatus controlling system
JPS57101901A (en) Dispersion type control system
JPS56136059A (en) Data transmission system
JPS51113547A (en) Data processing system
JPS6427334A (en) Duplex switching system
JPS5482946A (en) Duplex system of sequence controller
JPS5775336A (en) Separating system of faulty device
JPS57174721A (en) Power supply controller
JPS55123704A (en) Maintenance device of control unit
JPS5781655A (en) Switching system for now-in-use and stand-by decvices
JPS5662494A (en) Switching control system for information transfer path
JPS57141735A (en) Interruption controlling system
JPS55121518A (en) Controller for power supply of electronic computer
JPS5736303A (en) Digital operation controller for hydraulic power plant
JPS5267474A (en) Distant supervisory controller
JPS53125715A (en) Terminal control system
JPS5361931A (en) Communication control device
JPS5340207A (en) Stand-by unit switching system
JPS57141701A (en) Decentralized type control system
JPS5676824A (en) Network interface system
JPS54144106A (en) System back up system