FI930291A0 - Reliable multi-computer system with three computers - Google Patents

Reliable multi-computer system with three computers

Info

Publication number
FI930291A0
FI930291A0 FI930291A FI930291A FI930291A0 FI 930291 A0 FI930291 A0 FI 930291A0 FI 930291 A FI930291 A FI 930291A FI 930291 A FI930291 A FI 930291A FI 930291 A0 FI930291 A0 FI 930291A0
Authority
FI
Finland
Prior art keywords
computer
mca
allocated
computers
mcb
Prior art date
Application number
FI930291A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI930291A (en
FI98572C (en
FI98572B (en
Inventor
Michael Gronemeyer
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI930291A publication Critical patent/FI930291A/en
Publication of FI930291A0 publication Critical patent/FI930291A0/en
Application granted granted Critical
Publication of FI98572B publication Critical patent/FI98572B/en
Publication of FI98572C publication Critical patent/FI98572C/en

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
    • 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
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G06F11/181—Eliminating the failing redundant component
    • 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
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G06F11/183—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components
    • G06F11/184—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits by voting, the voting not being performed by the redundant components where the redundant components implement processing functionality
    • 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
    • G06F11/0796—Safety measures, i.e. ensuring safe condition in the event of error, e.g. for controlling element
    • 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
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G06F11/187—Voting techniques

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)
  • Multi Processors (AREA)
  • Debugging And Monitoring (AREA)

Abstract

To each computer (MCA, MCB, MCC) are allocated two hardware comparators (VAR, VAL; VBR, VBL; VCR, VCL) to compare the data from itself with the corresponding data from the partner computers. Only if both comparators (VAR, VAL) allocated to a computer (MCA) detect differences between the data fed to it (DA and DB or DC) is the computer shut down via an AND element (UA). The comparison processes are initialised not only by the computer (MCA) allocated to the comparators (VAR, VAL) but also by a partner computer (MCB or MCC). It is thus made certain that in the event of a breakdown the comparison processes for recognising and shutting down a defective computer actually take place and are not sabotaged by the defective computer. The result of the shutdown (ASSA) of a computer (e.g. MCA) is controlled by the operative computers (MCB, MCC), triggered by the interrupt from an allocated error store (FAL, FAR). If the defective computer is not shut down, the operative computers cause the shutdown themselves (total shutdown). The safe multi-computer system is especially intended for use in railway signal systems.
FI930291A 1990-08-14 1993-01-25 Reliable three-computer multi-computer system FI98572C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP90115585 1990-08-14
EP90115585 1990-08-14
PCT/EP1991/001022 WO1992003787A1 (en) 1990-08-14 1991-06-03 Highly safe multi-computer system with three computers
EP9101022 1991-06-03

Publications (4)

Publication Number Publication Date
FI930291A FI930291A (en) 1993-01-25
FI930291A0 true FI930291A0 (en) 1993-01-25
FI98572B FI98572B (en) 1997-03-27
FI98572C FI98572C (en) 1997-07-10

Family

ID=8204331

Family Applications (1)

Application Number Title Priority Date Filing Date
FI930291A FI98572C (en) 1990-08-14 1993-01-25 Reliable three-computer multi-computer system

Country Status (7)

Country Link
EP (1) EP0543820B1 (en)
AT (1) ATE110477T1 (en)
DE (1) DE59102664D1 (en)
DK (1) DK0543820T3 (en)
ES (1) ES2060389T3 (en)
FI (1) FI98572C (en)
WO (1) WO1992003787A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0760395B2 (en) * 1992-11-06 1995-06-28 日本電気株式会社 Fault tolerant computer system
US6141769A (en) 1996-05-16 2000-10-31 Resilience Corporation Triple modular redundant computer system and associated method
TW320701B (en) * 1996-05-16 1997-11-21 Resilience Corp
DE19740136A1 (en) * 1997-09-12 1999-03-18 Alsthom Cge Alcatel Process for isolating a defective computer in a fault-tolerant multi-computer system
DE10036598A1 (en) * 2000-07-27 2002-02-14 Infineon Technologies Ag Arrangement for monitoring the correct operation of components of an electrical system which carry out the same or corresponding actions
DE10053023C1 (en) * 2000-10-13 2002-09-05 Siemens Ag Method for controlling a safety-critical railway operating process and device for carrying out this method
DE10055424A1 (en) * 2000-11-09 2002-05-29 Alcatel Sa Method for storing a security key and multi-computer system for carrying out the method
US7209811B1 (en) 2001-11-22 2007-04-24 Siemens Aktiengesellschaft System and method for controlling a safety-critical railroad operating process
AU2002224742A1 (en) * 2001-11-22 2003-06-17 Siemens Aktiengesellschaft Method for controlling a safety-critical railway operating process and device for carrying out said method
EP2835759B1 (en) * 2013-08-08 2019-03-27 GbR Oliver Oechsle, Dr. Hans-Peter Dietz Method and system for managing a defective electronic user terminal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720879A1 (en) * 1987-06-24 1989-01-05 Siemens Ag Device for error-tolerant input/output of data

Also Published As

Publication number Publication date
EP0543820B1 (en) 1994-08-24
ATE110477T1 (en) 1994-09-15
WO1992003787A1 (en) 1992-03-05
FI930291A (en) 1993-01-25
DK0543820T3 (en) 1995-03-20
FI98572C (en) 1997-07-10
ES2060389T3 (en) 1994-11-16
DE59102664D1 (en) 1994-09-29
FI98572B (en) 1997-03-27
EP0543820A1 (en) 1993-06-02

Similar Documents

Publication Publication Date Title
US4096990A (en) Digital data computer processing system
FI930291A0 (en) Reliable multi-computer system with three computers
EP0201356A3 (en) High level self-checking intelligent i/o controller
EP0496506A3 (en) A processing unit for a computer and a computer system incorporating such a processing unit
EP0398639A3 (en) Serializing system between vector instruction and scalar instruction in data processing system
GB1444513A (en) Control method using computers operating in parallel
FR2661998B1 (en) DEVICE FOR PROCESSING HIGH SECURITY DATA WITH TWO OPERATING STATES.
SG46485A1 (en) Fault tolerant computer memory systems and components employing dual level error correction and detection with disablement feature
GB1373014A (en) Processor security arrangements
KR100238174B1 (en) Parallel processor system
JPH06180690A (en) Multiple computer system control method
KR920015199A (en) Processor failure prevention system using redundant processor
US5218606A (en) Current-spare switching control system
JPS57127998A (en) Detection system for disconnection of failed unit
ES2185131T3 (en) PROCEDURE FOR ISOLATING A DEFECTIVE COMPUTER IN A MULTI-COMPUTER SYSTEM TOLERANT TO ERRORS.
SU1721608A1 (en) Three-channel computing system failure display panel
RU1833876C (en) Device for majority signal selection
KR950029968A (en) Failover Systems in Multiprocessor Systems
JPS6451562A (en) Multi-processor system
JPS603754A (en) Malfunction detector
Madeira et al. The fault-tolerant architecture of the SAFE system
JPS57147198A (en) Battery backup result judging system for volatile memory
JPS57141731A (en) Voltage failure processing system in data processing system
JPH06149606A (en) Dual system
Zagurek Protecting the database.

Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed