Manual sensing of wire guidance signal

Details Manual sensing of wire guidance signal Manual sensing of wire guidance signal

1989-12-06

1991-07-16

Chin, Gary

Boots, shoes, and leggings

318587, 180167, G06F 1550

Patent

active

050329944

ABSTRACT:
A wire guidance system for a materials handling vehicle, such as a turret stockpicker, detects an alternating signal carried by a buried wire by means of two sets of four sensors each carried at either end of the vehicle. An alarm, including both audio and visual means, having a first characteristic is generated if the vehicle is equipped with a functioning wire guidance system; an alarm having a second characteristic is generated when an active wire is detected and wire guidance has not been activated.

REFERENCES:
patent: 4465155 (1984-08-01), Collins
patent: 4530056 (1985-07-01), MacKinnon et al.
patent: 4665369 (1987-05-01), Faller et al.
patent: 4942529 (1990-07-01), Avitan et al.

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