GB2105877A - Watch-dog timer circuit - Google Patents

Watch-dog timer circuit Download PDF

Info

Publication number
GB2105877A
GB2105877A GB08225448A GB8225448A GB2105877A GB 2105877 A GB2105877 A GB 2105877A GB 08225448 A GB08225448 A GB 08225448A GB 8225448 A GB8225448 A GB 8225448A GB 2105877 A GB2105877 A GB 2105877A
Authority
GB
United Kingdom
Prior art keywords
control
computer
watch
pulse
timer
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Withdrawn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
GB08225448A
Other languages
English (en)
Inventor
Andrew Edwin Taylor
Theodore Scott Malinowski
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
Publication of GB2105877A publication Critical patent/GB2105877A/en
Withdrawn legal-status Critical Current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
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • 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
    • G06F11/0706—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 the processing taking place on a specific hardware platform or in a specific software environment
    • G06F11/0736—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 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
    • 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
    • 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
    • G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
    • 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
    • G06F11/0793—Remedial 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)
  • Power Sources (AREA)
  • Fuel Cell (AREA)
  • Debugging And Monitoring (AREA)
GB08225448A 1981-09-14 1982-09-07 Watch-dog timer circuit Withdrawn GB2105877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30179881A 1981-09-14 1981-09-14

Publications (1)

Publication Number Publication Date
GB2105877A true GB2105877A (en) 1983-03-30

Family

ID=23164929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08225448A Withdrawn GB2105877A (en) 1981-09-14 1982-09-07 Watch-dog timer circuit

Country Status (17)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186403A (en) * 1986-02-07 1987-08-12 Triumph Adler Ag Arrangement for protecting typewriter from electrostatic discharges
GB2187909A (en) * 1986-03-13 1987-09-16 Lake Electronic Tech Power on reset & watchdog circuit
GB2200002A (en) * 1986-12-23 1988-07-20 Qualter Hall & Co Limited Microprocessor-based controller especially for hazardous environment

Families Citing this family (9)

* 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 (fr) * 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
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186403A (en) * 1986-02-07 1987-08-12 Triumph Adler Ag Arrangement for protecting typewriter from electrostatic discharges
GB2186403B (en) * 1986-02-07 1989-11-01 Triumph Adler Ag Method and circuit arrangement for the protection of typewriters or similar business machines from the consequence of electrostatic discharges
GB2187909A (en) * 1986-03-13 1987-09-16 Lake Electronic Tech Power on reset & watchdog circuit
GB2187909B (en) * 1986-03-13 1990-09-12 Lake Electronic Tech An interface circuit
GB2200002A (en) * 1986-12-23 1988-07-20 Qualter Hall & Co Limited Microprocessor-based controller especially for hazardous environment
GB2200002B (en) * 1986-12-23 1991-09-11 Qualter Hall & Co Limited Microprocessor-based controllers especially for hazardous environment

Also Published As

Publication number Publication date
DK402282A (da) 1983-03-15
JPS5860309A (ja) 1983-04-09
NO823071L (no) 1983-03-15
IT8223256A0 (it) 1982-09-14
ES515665A0 (es) 1983-06-01
ES8306411A1 (es) 1983-06-01
IT1152572B (it) 1987-01-07
CA1190307A (fr) 1985-07-09
BR8205190A (pt) 1983-08-16
BE894388A (fr) 1983-01-03
ZA826740B (en) 1983-07-27
AU560530B2 (en) 1987-04-09
SE8205152L (sv) 1983-03-15
IL66716A (en) 1985-08-30
DE3232513A1 (de) 1983-03-24
SE8205152D0 (sv) 1982-09-10
AU8832082A (en) 1983-03-24
FR2512978A1 (fr) 1983-03-18
MX151842A (es) 1985-04-01
CH659718A5 (de) 1987-02-13
FR2512978B1 (fr) 1988-02-19

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)