SYSTEM AND METHOD FOR CALIBRATING AND SYCHRONIZING MOVEMENT OF A PLURALITY OF ROLLER SHADES
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United States of America Patent
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Issued Date -
Dec 18, 2014
app pub date -
Jun 18, 2014
filing date -
Jun 18, 2013
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Abandoned
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Abstract
Presented is a method of calibrating and synchronizing movement of at least two roller shades with respect to each other. One of the roller shades is designated as a reference shade and the other as a slave shade. The total number of encoder counts required to move each of the roller shades from fully open to a fully closed is determined. A correction factor for the slave shade is calculated and used to correct the error in the position of the slave shade relative to the reference shade caused by variation in the length of flexible shade material wound around each of the roller shades. The reference shade is moved a desired number of encoder counts in a predetermined amount of time. Simultaneously, the slave shade is moved a corrected number of encoder counts in the same amount of time thereby correcting errors in the rotation rate.
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