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FR2421493A1 - Missile guidance system nuclear radiation protection - has memories blocked when irradiation exceeds set level and unblocked when level falls below set value - Google Patents

Missile guidance system nuclear radiation protection - has memories blocked when irradiation exceeds set level and unblocked when level falls below set value

Info

Publication number
FR2421493A1
FR2421493A1 FR7809208A FR7809208A FR2421493A1 FR 2421493 A1 FR2421493 A1 FR 2421493A1 FR 7809208 A FR7809208 A FR 7809208A FR 7809208 A FR7809208 A FR 7809208A FR 2421493 A1 FR2421493 A1 FR 2421493A1
Authority
FR
France
Prior art keywords
level
blocked
memories
unblocked
falls below
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.)
Granted
Application number
FR7809208A
Other languages
French (fr)
Other versions
FR2421493B1 (en
Inventor
Jean-Claude Petitout
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.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Priority to FR7809208A priority Critical patent/FR2421493A1/en
Publication of FR2421493A1 publication Critical patent/FR2421493A1/en
Application granted granted Critical
Publication of FR2421493B1 publication Critical patent/FR2421493B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/74—Masking faults in memories by using spares or by reconfiguring using duplex memories, i.e. using dual copies
    • 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
    • G06F11/1666—Error detection or correction of the data by redundancy in hardware where the redundant component is memory or memory area
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/005—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to ionising radiation; Nuclear-radiation circumvention circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The system has a principal memory which receives and transmits cyclically data. In at least an auxiliary memory is stored at least a apart of the data destined to be stored in the principal memory. The principal and auxiliary memories are alternatively activated. Memory activation is blocked as long as the radiation intensity, to which the electronic system is submitted, is greater than a predetermined level. Activation is initiated when the radiation intensity is less than the et level. After reactivation, priority is given to data contained in the memory which was not activated at the moment of blocking.
FR7809208A 1978-03-30 1978-03-30 Missile guidance system nuclear radiation protection - has memories blocked when irradiation exceeds set level and unblocked when level falls below set value Granted FR2421493A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7809208A FR2421493A1 (en) 1978-03-30 1978-03-30 Missile guidance system nuclear radiation protection - has memories blocked when irradiation exceeds set level and unblocked when level falls below set value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7809208A FR2421493A1 (en) 1978-03-30 1978-03-30 Missile guidance system nuclear radiation protection - has memories blocked when irradiation exceeds set level and unblocked when level falls below set value

Publications (2)

Publication Number Publication Date
FR2421493A1 true FR2421493A1 (en) 1979-10-26
FR2421493B1 FR2421493B1 (en) 1982-01-15

Family

ID=9206428

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809208A Granted FR2421493A1 (en) 1978-03-30 1978-03-30 Missile guidance system nuclear radiation protection - has memories blocked when irradiation exceeds set level and unblocked when level falls below set value

Country Status (1)

Country Link
FR (1) FR2421493A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067364A2 (en) * 1981-06-12 1982-12-22 Siemens Aktiengesellschaft Method and arrangement for a non-volatile storage of the counting state of an electronic counter
EP0082533A2 (en) * 1981-12-21 1983-06-29 Siemens Aktiengesellschaft Method of acquisition and correction of data errors, and device to perform the method
FR2663160A1 (en) * 1990-06-12 1991-12-13 Commissariat Energie Atomique METHOD FOR EXTENDING THE OPERATING PERIOD OF A MOS COMPONENT CIRCUIT SUBJECT TO "GAMMA" RADIATION.
FR2766593A1 (en) * 1997-07-25 1999-01-29 Aerospatiale Method and device for protecting data in an electronic system from ionising degradation, such as nuclear irradiation.
EP1031997A1 (en) * 1999-02-26 2000-08-30 Commissariat A L'energie Atomique Electronic system for operating under radiation, method for designing such a system and implementing the same for driving a mobile robot

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886379A (en) * 1972-12-13 1975-05-27 Motorola Inc Radiation triggered disconnect means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886379A (en) * 1972-12-13 1975-05-27 Motorola Inc Radiation triggered disconnect means

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV700/68 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067364A2 (en) * 1981-06-12 1982-12-22 Siemens Aktiengesellschaft Method and arrangement for a non-volatile storage of the counting state of an electronic counter
EP0067364A3 (en) * 1981-06-12 1984-01-18 Siemens Aktiengesellschaft Method and arrangement for a non-volatile storage of the counting state of an electronic counter
EP0195885A2 (en) * 1981-06-12 1986-10-01 Siemens Aktiengesellschaft Method and device for the non-volatile memorizing of the counting state of an electronic counter circuit
EP0195885A3 (en) * 1981-06-12 1986-11-26 Siemens Aktiengesellschaft Berlin Und Munchen Method and device for the non-volatile memorizing of the counting state of an electronic counter circuit
EP0082533A2 (en) * 1981-12-21 1983-06-29 Siemens Aktiengesellschaft Method of acquisition and correction of data errors, and device to perform the method
EP0082533A3 (en) * 1981-12-21 1985-11-27 Siemens Aktiengesellschaft Method of acquisition and correction of data errors, and device to perform the method
FR2663160A1 (en) * 1990-06-12 1991-12-13 Commissariat Energie Atomique METHOD FOR EXTENDING THE OPERATING PERIOD OF A MOS COMPONENT CIRCUIT SUBJECT TO "GAMMA" RADIATION.
EP0461982A1 (en) * 1990-06-12 1991-12-18 Commissariat A L'energie Atomique Method for extension of the life time of a circuit with MOS-components subject to "Gamma" radiation
US5287361A (en) * 1990-06-12 1994-02-15 Commissariat A L'energie Atomique Process for extending the operating period of a circuit with MOS components exposed to gamma radiation
FR2766593A1 (en) * 1997-07-25 1999-01-29 Aerospatiale Method and device for protecting data in an electronic system from ionising degradation, such as nuclear irradiation.
EP1031997A1 (en) * 1999-02-26 2000-08-30 Commissariat A L'energie Atomique Electronic system for operating under radiation, method for designing such a system and implementing the same for driving a mobile robot
FR2790327A1 (en) * 1999-02-26 2000-09-01 Commissariat Energie Atomique ELECTRONIC SYSTEM OPERATING UNDER IRRADIATION, METHOD FOR DESIGNING SUCH A SYSTEM, AND APPLICATION THEREOF TO THE CONTROL OF A MOBILE ROBOT
US6812476B1 (en) 1999-02-26 2004-11-02 Commissariat A L'energie Atomique Electronic system operating under irradiation, process for designing such a system and application thereof to the control of a mobile robot

Also Published As

Publication number Publication date
FR2421493B1 (en) 1982-01-15

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