FI98572B - Reliable three-computer multi-computer system - Google Patents
Reliable three-computer multi-computer systemInfo
- Publication number
- FI98572B FI98572B FI930291A FI930291A FI98572B FI 98572 B FI98572 B FI 98572B FI 930291 A FI930291 A FI 930291A FI 930291 A FI930291 A FI 930291A FI 98572 B FI98572 B FI 98572B
- Authority
- FI
- Finland
- Prior art keywords
- computer
- mca
- allocated
- mcb
- mcc
- Prior art date
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.
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 FI930291A0 (en) | 1993-01-25 |
FI98572B true 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)
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 |
TW320701B (en) * | 1996-05-16 | 1997-11-21 | Resilience Corp | |
US6141769A (en) | 1996-05-16 | 2000-10-31 | Resilience Corporation | Triple modular redundant computer system and associated method |
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 |
JP4102306B2 (en) * | 2001-11-22 | 2008-06-18 | シーメンス アクチエンゲゼルシヤフト | Method for controlling railway operation process requiring safety and apparatus for carrying out this method |
US7209811B1 (en) | 2001-11-22 | 2007-04-24 | Siemens Aktiengesellschaft | System and method for controlling a safety-critical railroad operating process |
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)
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 |
-
1991
- 1991-06-03 WO PCT/EP1991/001022 patent/WO1992003787A1/en active IP Right Grant
- 1991-06-03 AT AT91910613T patent/ATE110477T1/en not_active IP Right Cessation
- 1991-06-03 DE DE59102664T patent/DE59102664D1/en not_active Expired - Fee Related
- 1991-06-03 EP EP91910613A patent/EP0543820B1/en not_active Expired - Lifetime
- 1991-06-03 ES ES91910613T patent/ES2060389T3/en not_active Expired - Lifetime
- 1991-06-03 DK DK91910613.8T patent/DK0543820T3/en active
-
1993
- 1993-01-25 FI FI930291A patent/FI98572C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI930291A (en) | 1993-01-25 |
ES2060389T3 (en) | 1994-11-16 |
FI930291A0 (en) | 1993-01-25 |
ATE110477T1 (en) | 1994-09-15 |
EP0543820B1 (en) | 1994-08-24 |
DE59102664D1 (en) | 1994-09-29 |
FI98572C (en) | 1997-07-10 |
DK0543820T3 (en) | 1995-03-20 |
EP0543820A1 (en) | 1993-06-02 |
WO1992003787A1 (en) | 1992-03-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
MM | Patent lapsed |