JPS57189254A - Backup circuit for troubled part of control electronic computer - Google Patents

Backup circuit for troubled part of control electronic computer

Info

Publication number
JPS57189254A
JPS57189254A JP56072282A JP7228281A JPS57189254A JP S57189254 A JPS57189254 A JP S57189254A JP 56072282 A JP56072282 A JP 56072282A JP 7228281 A JP7228281 A JP 7228281A JP S57189254 A JPS57189254 A JP S57189254A
Authority
JP
Japan
Prior art keywords
electronic computer
control electronic
backup circuit
circuits
circuit
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
JP56072282A
Other languages
Japanese (ja)
Inventor
Yoshio Saito
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP56072282A priority Critical patent/JPS57189254A/en
Publication of JPS57189254A publication Critical patent/JPS57189254A/en
Pending 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)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To enable to use a computer as normal without stopping a device to be controlled, by switching a changeover means when either one of an input circuit, a CPU and an output circuit is at failure and using a backup circuit. CONSTITUTION:Circuits 2b, 3b and 4b backing up troubled parts are respectively provided for an input circuit 2a, a CPU 3a, and an output circuit 4a of a control electronic computer. Since changeover switches S1-S10 are selected with either one of the backup circuits 2b, 3b and 4b and a changeover control section 6 if either one of the circuits 2a, 3a and 4a is failed, the control electronic computer can be operated without interruption.
JP56072282A 1981-05-15 1981-05-15 Backup circuit for troubled part of control electronic computer Pending JPS57189254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072282A JPS57189254A (en) 1981-05-15 1981-05-15 Backup circuit for troubled part of control electronic computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072282A JPS57189254A (en) 1981-05-15 1981-05-15 Backup circuit for troubled part of control electronic computer

Publications (1)

Publication Number Publication Date
JPS57189254A true JPS57189254A (en) 1982-11-20

Family

ID=13484764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072282A Pending JPS57189254A (en) 1981-05-15 1981-05-15 Backup circuit for troubled part of control electronic computer

Country Status (1)

Country Link
JP (1) JPS57189254A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108301A (en) * 1985-11-07 1987-05-19 Agency Of Ind Science & Technol Remote control robot
JP2009144547A (en) * 2007-12-12 2009-07-02 Denso Corp Starter and manufacturing method of starter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871157A (en) * 1971-12-25 1973-09-26
JPS49112511A (en) * 1973-02-23 1974-10-26
JPS5416955A (en) * 1977-07-08 1979-02-07 Toshiba Corp Computer system for process control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871157A (en) * 1971-12-25 1973-09-26
JPS49112511A (en) * 1973-02-23 1974-10-26
JPS5416955A (en) * 1977-07-08 1979-02-07 Toshiba Corp Computer system for process control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108301A (en) * 1985-11-07 1987-05-19 Agency Of Ind Science & Technol Remote control robot
JP2009144547A (en) * 2007-12-12 2009-07-02 Denso Corp Starter and manufacturing method of starter

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