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  2. Fault detection and isolation - Wikipedia

    en.wikipedia.org/wiki/Fault_detection_and_isolation

    Fault detection, isolation, and recovery (FDIR) is a subfield of control engineering which concerns itself with monitoring a system, identifying when a fault has occurred, and pinpointing the type of fault and its location. Two approaches can be distinguished: A direct pattern recognition of sensor readings that indicate a fault and an analysis ...

  3. Watchdog timer - Wikipedia

    en.wikipedia.org/wiki/Watchdog_timer

    Watchdog timers are sometimes used to trigger the recording of system state information—which may be useful during fault recovery [4] —or debug information (which may be useful for determining the cause of the fault) onto a persistent medium. In such cases, a second timer—which is started when the first timer elapses—is typically used ...

  4. Failure detector - Wikipedia

    en.wikipedia.org/wiki/Failure_detector

    The construction of a failure detector is an essential, but a very difficult problem that occurred in the development of the fault-tolerant component in a distributed computer system. As a result, the failure detector was invented because of the need for detecting errors in the massive information transaction in distributed computing systems.

  5. Time-domain reflectometer - Wikipedia

    en.wikipedia.org/wiki/Time-domain_reflectometer

    Time-domain reflectometer for cable fault detection A time-domain reflectometer ( TDR ) is an electronic instrument used to determine the characteristics of electrical lines by observing reflected pulses .

  6. Fault tolerance - Wikipedia

    en.wikipedia.org/wiki/Fault_tolerance

    This is usually handled with a separate "automated fault-detection system". In the case of the tire, an air pressure monitor detects the loss of pressure and notifies the driver. The alternative is a "manual fault-detection system", such as manually inspecting all tires at each stop. Interference with fault detection in another component.

  7. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    Each of the EOBD fault codes consists of five characters: a letter, followed by four numbers. [26] The letter refers to the system being interrogated e.g. Pxxxx would refer to the powertrain system. The next character would be a 0 if complies to the EOBD standard. So it should look like P0xxx. The next character would refer to the sub system.

  8. Failure mode, effects, and criticality analysis - Wikipedia

    en.wikipedia.org/wiki/Failure_Mode,_Effects,_and...

    Fault detection coverage that system built-in test will realize; Whether the analysis will be functional or piece-part; Criteria to be considered (mission abort, safety, maintenance, etc.) System for uniquely identifying parts or functions; Severity category definitions

  9. Fault indicator - Wikipedia

    en.wikipedia.org/wiki/Fault_indicator

    In electric power distribution networks, a fault indicator is a device which provides visual or remote indication of a fault on the electric power system. Also called a faulted circuit indicator (FCI), [1] the device is used in electric power distribution networks as a means of automatically detecting and identifying faults to reduce outage time.

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