FR2423003A1 - Appareil de calcul numerique - Google Patents

Appareil de calcul numerique

Info

Publication number
FR2423003A1
FR2423003A1 FR7909297A FR7909297A FR2423003A1 FR 2423003 A1 FR2423003 A1 FR 2423003A1 FR 7909297 A FR7909297 A FR 7909297A FR 7909297 A FR7909297 A FR 7909297A FR 2423003 A1 FR2423003 A1 FR 2423003A1
Authority
FR
France
Prior art keywords
output signals
binary digit
indication signal
signals
digital computing
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.)
Withdrawn
Application number
FR7909297A
Other languages
English (en)
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2423003A1 publication Critical patent/FR2423003A1/fr
Withdrawn legal-status Critical Current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
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/076—Error or fault detection not based on redundancy by exceeding limits by exceeding a count or rate limit, e.g. word- or bit count limit
    • 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
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1641—Error detection by comparing the output of redundant processing systems where the comparison is not performed by the redundant processing components

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Control Of Turbines (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Manipulation Of Pulses (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Appareil de calcul numérique. Deux dispositifs identiques de calcul numérique 16, 17 qui reçoivent les mêmes signaux de commande d'un générateur d'impulsions d'horloge 23 et les mêmes signaux d'entrée, et qui fournissent, sous forme série, des signaux de sortie synchronisés théoriquement identiques. Un circuit 20 compare les signaux de sortie, à raison d'un chiffre binaire à la fois, et fournit un signal d'indication après un certain nombre de non-correspondances. Le signal d'indication peut être utilisé pour interdire le transfert des signaux de sortie vers un appareillage extérieur, et pour mettre en service un autre appareil qui comporte aussi deux dispositifs identiques de calcul dont les signaux de sortie sont comparés chiffre binaire par chifre binaire. Application notamment aux turbines à gaz.
FR7909297A 1978-04-14 1979-04-12 Appareil de calcul numerique Withdrawn FR2423003A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1467878 1978-04-14

Publications (1)

Publication Number Publication Date
FR2423003A1 true FR2423003A1 (fr) 1979-11-09

Family

ID=10045611

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909297A Withdrawn FR2423003A1 (fr) 1978-04-14 1979-04-12 Appareil de calcul numerique

Country Status (5)

Country Link
US (1) US4251873A (fr)
DE (1) DE2915401A1 (fr)
FR (1) FR2423003A1 (fr)
GB (1) GB2019622B (fr)
IT (1) IT1119728B (fr)

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JPS5644238A (en) * 1979-09-20 1981-04-23 Fujitsu Ltd Supervisory circuit of reverse diffusion device
US4447903A (en) * 1981-05-22 1984-05-08 Ael Microtel, Ltd. Forward error correction using coding and redundant transmission
JPS5810246A (ja) * 1981-07-13 1983-01-20 Nissan Motor Co Ltd 車両用ディジタル制御装置
US4504905A (en) * 1981-09-05 1985-03-12 Lucas Industries Plc Digital control system including means for maintaining signals supplied thereby within limiting values
FR2512980B1 (fr) * 1981-09-14 1983-12-23 Aero Etudes Conseils
US4494207A (en) * 1982-04-15 1985-01-15 General Electric Company Dual turbine controller
US4494208A (en) * 1982-04-15 1985-01-15 General Electric Company Bumpless switching of valve drive in a turbine control system
GB8312822D0 (en) * 1983-05-10 1983-06-15 Dowty & Smiths Ind Controls Lt Engine control systems
US4695946A (en) * 1984-10-25 1987-09-22 Unisys Corporation Maintenance subsystem for computer network including power control and remote diagnostic center
WO1986004432A1 (fr) * 1985-01-22 1986-07-31 National Can Corporation Systeme redondant de commande pour machine automatique de formage
US4821193A (en) * 1985-08-26 1989-04-11 General Electric Company Digital control for gas turbine engine
US4712372A (en) * 1985-09-18 1987-12-15 Avco Corporation Overspeed system redundancy monitor
JPS62299435A (ja) * 1986-06-19 1987-12-26 Isuzu Motors Ltd 異常検出装置付き車両の制御装置
US5020024A (en) * 1987-01-16 1991-05-28 Stratus Computer, Inc. Method and apparatus for detecting selected absence of digital logic synchronism
JPH061402B2 (ja) * 1987-03-20 1994-01-05 住友電気工業株式会社 多重系制御回路
US4907228A (en) * 1987-09-04 1990-03-06 Digital Equipment Corporation Dual-rail processor with error checking at single rail interfaces
US5185877A (en) * 1987-09-04 1993-02-09 Digital Equipment Corporation Protocol for transfer of DMA data
US4916704A (en) * 1987-09-04 1990-04-10 Digital Equipment Corporation Interface of non-fault tolerant components to fault tolerant system
EP0306244B1 (fr) * 1987-09-04 1995-06-21 Digital Equipment Corporation Système de calculateur à tolérance de fautes et à localisation de fautes
EP0306211A3 (fr) * 1987-09-04 1990-09-26 Digital Equipment Corporation Système synchronisé à double calculateur
EP0315042B1 (fr) * 1987-11-06 1993-05-19 Joh. Vaillant GmbH u. Co. Commande d'une source de chaleur chauffée au carburant
US5001767A (en) * 1987-11-30 1991-03-19 Kabushiki Kaisha Toshiba Image processing device
WO1989012272A1 (fr) * 1988-06-06 1989-12-14 Robert Bosch Gmbh Procede de controle d'erreurs dans des donnees
JPH07117905B2 (ja) * 1989-02-09 1995-12-18 日本電気株式会社 マイクロプロセッサ
US5068851A (en) * 1989-08-01 1991-11-26 Digital Equipment Corporation Apparatus and method for documenting faults in computing modules
US5068780A (en) * 1989-08-01 1991-11-26 Digital Equipment Corporation Method and apparatus for controlling initiation of bootstrap loading of an operating system in a computer system having first and second discrete computing zones
US5048022A (en) * 1989-08-01 1991-09-10 Digital Equipment Corporation Memory device with transfer of ECC signals on time division multiplexed bidirectional lines
US5153881A (en) * 1989-08-01 1992-10-06 Digital Equipment Corporation Method of handling errors in software
US5065312A (en) * 1989-08-01 1991-11-12 Digital Equipment Corporation Method of converting unique data to system data
US5163138A (en) * 1989-08-01 1992-11-10 Digital Equipment Corporation Protocol for read write transfers via switching logic by transmitting and retransmitting an address
US5251227A (en) * 1989-08-01 1993-10-05 Digital Equipment Corporation Targeted resets in a data processor including a trace memory to store transactions
ATE139632T1 (de) * 1989-08-01 1996-07-15 Digital Equipment Corp Verfahren zur softwarefehlerbehandlung
FR2654852A1 (fr) * 1989-11-21 1991-05-24 Inrets Procede de surveillance du fonctionnement d'au moins deux microprocesseurs.
US5551050A (en) * 1989-12-20 1996-08-27 Texas Instruments Incorporated System and method using synchronized processors to perform real time internal monitoring of a data processing device
JPH05128080A (ja) * 1991-10-14 1993-05-25 Mitsubishi Electric Corp 情報処理装置
US5428769A (en) * 1992-03-31 1995-06-27 The Dow Chemical Company Process control interface system having triply redundant remote field units
US5838894A (en) 1992-12-17 1998-11-17 Tandem Computers Incorporated Logical, fail-functional, dual central processor units formed from three processor units
US5751932A (en) * 1992-12-17 1998-05-12 Tandem Computers Incorporated Fail-fast, fail-functional, fault-tolerant multiprocessor system
FR2704329B1 (fr) * 1993-04-21 1995-07-13 Csee Transport Système de sécurité à microprocesseur, applicable notamment au domaine des transports ferroviaires.
US5490072A (en) * 1994-07-18 1996-02-06 Kelsey-Hayes Company Method and system for detecting the proper functioning of an ABS control unit utilizing dual programmed microprocessors
US5485379A (en) * 1994-07-25 1996-01-16 Kelsey Hayes Company Method and system for detecting the proper functioning of an ABS control unit utilizing substantially identical programmed microprocessors
EP0868692B1 (fr) * 1995-12-18 2000-05-03 ABB Automation Inc. Dispositif de verification independante pour processeurs

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL153059B (nl) * 1967-01-23 1977-04-15 Bell Telephone Mfg Automatisch telecommunicatie-schakelstelsel.
GB1238162A (fr) * 1969-03-26 1971-07-07
GB1253309A (en) * 1969-11-21 1971-11-10 Marconi Co Ltd Improvements in or relating to data processing arrangements
US3618015A (en) * 1970-06-30 1971-11-02 Gte Automatic Electric Lab Inc Apparatus for discriminating between errors and faults
RO63302A (fr) * 1971-02-23 1978-08-15 Int Standard Electric Corp Dispositif pour le control continu le fonctionnement tu traitement des informations et l'emission des telegrammes des donnees,aux instalations de chemin de fer commandes pal un ordinateur de proces
FR2162093B1 (fr) * 1971-12-02 1977-04-08 Hitachi Ltd
DE2303828A1 (de) * 1973-01-26 1974-08-01 Standard Elektrik Lorenz Ag Steuerverfahren mit drei parallel betriebenen rechnern
GB1483733A (en) * 1973-11-07 1977-08-24 Lucas Industries Ltd Electric control circuit arrangements for gas turbine engines
US3931505A (en) * 1974-03-13 1976-01-06 Bell Telephone Laboratories, Incorporated Program controlled data processor

Also Published As

Publication number Publication date
IT7921846A0 (it) 1979-04-13
US4251873A (en) 1981-02-17
GB2019622B (en) 1982-04-07
IT1119728B (it) 1986-03-10
DE2915401A1 (de) 1979-10-25
GB2019622A (en) 1979-10-31

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Legal Events

Date Code Title Description
ST Notification of lapse