Wire guidance control system
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United States of America Patent
Stats
-
Nov 26, 1991
Grant Date -
N/A
app pub date -
Dec 6, 1989
filing date -
Dec 6, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wire guidance system for a materials handling vehicle, such as a turret stockpicker, detects an alternating signal carried by a buried wire. Two sets of four sensors each are carried at either end of the vehicle. The distance and angle of the vehicle is determined by reference to the distance measurements of each sensor set, as calculated by a microcomputer. Deviations in the angle or speed from predetermined limits will cause brakes to be applied and require operator intervention before the vehicle can be restarted.
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