System and method for coordinating movement of mobile drive units
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United States of America Patent
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Apr 5, 2011
Grant Date -
Feb 28, 2008
app pub date -
Jun 19, 2006
filing date -
Jun 19, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A method for moving one or more mobile drive units within a workspace includes receiving, from a first mobile drive unit, a reservation request requesting use of a first path segment to move in a first direction. The method further includes determining that a second mobile drive unit is currently located on the first path segment and determining whether the second mobile drive unit is moving in the first direction. Additionally, the method includes transmitting a reservation response indicating that the reservation request is denied, in response to determining that the second mobile drive unit is not moving in the first direction. The method also includes transmitting a reservation response indicating that the reservation request is granted, in response to determining that the second mobile drive unit is moving in the first direction.
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