CA1190307A - Watch-dog timer circuit - Google Patents

Watch-dog timer circuit

Info

Publication number
CA1190307A
CA1190307A CA000408571A CA408571A CA1190307A CA 1190307 A CA1190307 A CA 1190307A CA 000408571 A CA000408571 A CA 000408571A CA 408571 A CA408571 A CA 408571A CA 1190307 A CA1190307 A CA 1190307A
Authority
CA
Canada
Prior art keywords
watch
power plant
timer
computer
reset
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.)
Expired
Application number
CA000408571A
Other languages
English (en)
French (fr)
Inventor
Theodore S. Malinowski
Andrew E. Taylor
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Application granted granted Critical
Publication of CA1190307A publication Critical patent/CA1190307A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14Error detection or correction of the data by redundancy in operation
    • G06F11/1402Saving, restoring, recovering or retrying
    • G06F11/1415Saving, restoring, recovering or retrying at system level
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703Error 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
    • G06F11/0706Error 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 the processing taking place on a specific hardware platform or in a specific software environment
    • G06F11/0736Error 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 the processing taking place on a specific hardware platform or in a specific software environment in functional embedded systems, i.e. in a data processing system designed as a combination of hardware and software dedicated to performing a certain function
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703Error 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
    • G06F11/0751Error or fault detection not based on redundancy
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703Error 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
    • G06F11/0751Error or fault detection not based on redundancy
    • G06F11/0754Error or fault detection not based on redundancy by exceeding limits
    • G06F11/0757Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703Error 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
    • G06F11/0793Remedial or corrective actions

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Safety Devices In Control Systems (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Debugging And Monitoring (AREA)
  • Power Sources (AREA)
  • Fuel Cell (AREA)
CA000408571A 1981-09-14 1982-08-02 Watch-dog timer circuit Expired CA1190307A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30179881A 1981-09-14 1981-09-14
US301,798 1981-09-14

Publications (1)

Publication Number Publication Date
CA1190307A true CA1190307A (en) 1985-07-09

Family

ID=23164929

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000408571A Expired CA1190307A (en) 1981-09-14 1982-08-02 Watch-dog timer circuit

Country Status (17)

Country Link
JP (1) JPS5860309A (es)
AU (1) AU560530B2 (es)
BE (1) BE894388A (es)
BR (1) BR8205190A (es)
CA (1) CA1190307A (es)
CH (1) CH659718A5 (es)
DE (1) DE3232513A1 (es)
DK (1) DK402282A (es)
ES (1) ES8306411A1 (es)
FR (1) FR2512978B1 (es)
GB (1) GB2105877A (es)
IL (1) IL66716A (es)
IT (1) IT1152572B (es)
MX (1) MX151842A (es)
NO (1) NO823071L (es)
SE (1) SE8205152L (es)
ZA (1) ZA826740B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211143A (ja) * 1983-05-17 1984-11-29 Nissan Motor Co Ltd マイクロコンピユ−タを用いた車両用制御回路
DE3332802A1 (de) * 1983-09-12 1985-03-28 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum pruefen des ordnungsgerechten anlaufens eines zweikanaligen fail-safe-mikrocomputerschaltwerkes, insbesondere fuer eisenbahnsicherungsanlagen
JPS60239803A (ja) * 1984-05-15 1985-11-28 Yokogawa Hokushin Electric Corp 分散形制御システム
JPS6155746U (es) * 1984-09-19 1986-04-15
US4701856A (en) * 1985-03-12 1987-10-20 Pitney Bowes Inc. Reset delay circuit for an electronic postage meter
US4747057A (en) * 1985-03-12 1988-05-24 Pitney Bowes Inc. Electronic postage meter having power up and power down protection circuitry
DE3603807C1 (de) * 1986-02-07 1987-07-30 Triumph Adler Ag Verfahren und Schaltungsanordnung zum Schutz von Schreib- oder aehnlichen Bueromaschinen vor den Folgen von elektrostatischen Entladungen
GB2187909B (en) * 1986-03-13 1990-09-12 Lake Electronic Tech An interface circuit
GB8630674D0 (en) * 1986-12-23 1987-02-04 Qualter Hall & Co Ltd Microprocessor-based controllers
GB2200476B (en) * 1987-01-29 1991-02-06 British Gas Plc Monitor system
DD275546A1 (de) * 1988-09-16 1990-01-24 Adw Ddr Kybernetik Inf Verfahren und anordnung zum testen von mikrorechnergesteuerten baugruppen und geraeten
JP2008262740A (ja) * 2007-04-10 2008-10-30 Toshiba Fuel Cell Power Systems Corp 燃料電池発電システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636352C3 (de) * 1976-08-12 1979-12-20 Kraftwerk Union Ag, 4330 Muelheim Schutzsystem für einen Kernreaktor
US4118792A (en) * 1977-04-25 1978-10-03 Allen-Bradley Company Malfunction detection system for a microprocessor based programmable controller
DE2851190C3 (de) * 1978-11-27 1981-06-11 Nsm-Apparatebau Gmbh & Co Kg, 6530 Bingen Fehlerschutzanordnung
GB2087119B (en) * 1980-11-06 1985-05-15 British Gas Corp Fail-safe supervisory circuit

Also Published As

Publication number Publication date
CH659718A5 (de) 1987-02-13
SE8205152D0 (sv) 1982-09-10
MX151842A (es) 1985-04-01
DE3232513A1 (de) 1983-03-24
IL66716A (en) 1985-08-30
FR2512978A1 (fr) 1983-03-18
IT1152572B (it) 1987-01-07
BR8205190A (pt) 1983-08-16
FR2512978B1 (fr) 1988-02-19
BE894388A (fr) 1983-01-03
ZA826740B (en) 1983-07-27
AU8832082A (en) 1983-03-24
NO823071L (no) 1983-03-15
DK402282A (da) 1983-03-15
AU560530B2 (en) 1987-04-09
ES515665A0 (es) 1983-06-01
SE8205152L (sv) 1983-03-15
GB2105877A (en) 1983-03-30
ES8306411A1 (es) 1983-06-01
IT8223256A0 (it) 1982-09-14
JPS5860309A (ja) 1983-04-09

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry