Power drive unit with unit load device sensor

Details Power drive unit with unit load device sensor Power drive unit with unit load device sensor

2008-07-22

2008-07-22

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

With protective or reliability increasing features

C244S118100, C244S137100, C198S781020

Reexamination Certificate

active

07402973

ABSTRACT:
A cargo power drive unit includes a motor and at least one drive roller element coupled to the motor. The power drive unit further includes a light transmitter for emitting light and a light receiver for measuring light. The power drive unit measures an amount of ambient light and then measures an amount of total light after the light transmitter emits light. The power drive unit then determines whether a cargo container is present based on a calculation of reflected light and the measurement of ambient light.

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