SYSTEM AND METHOD FOR CONTINUOUSLY PROJECTING A REFERENCE AID AT AN ACTIVITY SITE
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United States of America Patent
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Issued Date -
Nov 26, 2015
app pub date -
May 23, 2014
filing date -
May 23, 2014
priority date (Note) -
Abandoned
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Abstract
An apparatus and method for projecting reference aids at sites characterized by continuous activity over periods which long enough to encompass both full daylight and artificial light only ambient lighting conditions. Variations in ambient light intensity are detected over the course of the activity period, and at least one laser projection system is operated responsive to the detecting to project a line which is visible continuously throughout the site activity period. The projected line serves as a reference aid for guiding operation of vehicles and equipment as they approach or depart a particular processing station of the site.
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