Method and apparatus for determining direction of the beginning of vehicle movement
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United States of America Patent
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Jul 17, 2018
Grant Date -
Feb 16, 2017
app pub date -
Oct 26, 2016
filing date -
Jun 16, 2010
priority date (Note) -
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Abstract
A method of movement mode determination comprising measurement of vehicle's position and orientation and calculation of movement parameters, a compass on the vehicle, is azimuthally oriented along the prevailing and is mostly used movement direction (“forward” direction), a movement vector measurement unit, is used for measuring the azimuth of movement vector. A calculation unit being used for measuring an angle between vehicle movement vector azimuth measured by the movement vector measurement unit and vehicle azimuth measured by the compass fixed on the vehicle; movement is regarded as “backward” if the calculated angle is greater than 90 degrees, and “forward” if the calculated angle is smaller than 90 degrees. Also, an apparatus for movement direction determination includes a compass and a computation unit and further comprises a movement vector measurement unit for determining vehicle movement azimuth and connected through a signal connection to the computation unit.
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