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OwnerRobert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch, Hendrik J. C. Gelderloosinventors
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Input signals from sensor (S) in a redundancy management system are provided redundantly in parallel so that a primary control signal may be selected. Median value signals for groups of three sensors are detected in median value selectors (30, 32, 34, 36, 40) of selection filters (F). The detected median value signals are then also compared in a subtractor/comparator (38) to determine whether any of them exceed the others by an amount greater than the signal level for a failed sensor. If so, the exceeding detected medium value signal is sent to a control computer (10) as the primary control signal. If not, the lowest level detected medium value signal is sent as the primary control signal.
An apparatus for selecting a primary control signal for redundancy management in a system having a plurality of sensors providing input signals in parallel to a control computer to provide the computer with a primary control signal representing an output from a properly operating sensor, comprising:
An apparatus for selecting a primary control signal for redundancy management in a system having a plurality of groups of sensors, each sensor group providing input signals in parallel to a plurality of control computer to provide the computers with primary control signals representing outputs from properly operating sensors, comprising:
A method of selecting a primary control signal for redundancy management in a system having a plurality of sensors providing input signals in parallel to a control computer to provide the computer with a primary control signal representing an output from a properly operating sensor, comprising the steps of:
A method of selecting a primary control signal for redundancy management in a system having a plurality of groups of sensors, each sensor group providing input signals in parallel to a plurality of control computers to provide the computers with primary control signals representing outputs from properly operating sensors, comprising the steps of:
Dependencies are inferred from the claim text.