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AssigneeGoodrich Corporation
InventorsJeffrey Steven Milender, William Richard Ockert, Adam Edmund Buckhouse
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An air cargo power drive unit has a motor, at least one driver roller element coupled to said motor, a light source, a light detector, and a processor having memory associated therewith, said memory storing instructions. The device is configured to emit light from the light source, receive reflected light from the light detector when an air cargo is overhead, and convert the detected light into a time series of a digital samples representing a time-varying intensity of the received light. The processor then performs calculations on the digital samples to determine whether the unit load device is moving. This determination may be based, for instance, on spikes among the digital samples, and/or on first, second, or even higher-order, statistics of the detected samples.
A method of detecting motion of an unit load device in a cargo hold of an aircraft, comprising:
An air cargo power drive unit comprising:
A cargo aircraft having an air cargo loading system including at least one power drive unit, the at least one power drive unit having an unit load device overhead, said at least one power drive unit comprising:
Dependencies are inferred from the claim text.