Method and device for checking plane's entry into a dive and anti-dive devices for planes using the same
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United States of America Patent
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Apr 7, 2009
Grant Date -
Feb 1, 2007
app pub date -
Aug 12, 2005
filing date -
Jul 29, 2005
priority date (Note) -
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Abstract
A method is disclosed for checking model planes entering into a dive, as well as an anti-dive method and apparatus. The method of checking planes includes installation of a first optical sensor in the upper part of the plane, with installation angle upwardly intersecting with the front of the plane at α degrees, that checks light intensity and outputs a first checked optical signal; installation of a second optical sensor in the bottom part of the plane, with its installation angle downwardly intersecting with the back of the plane at β degrees, which checks light intensity and outputs a second checked optical signal. A comparison is made between the first and second checked optical signals, and when the difference in light intensity is smaller than a threshold, a warning signal is sent out indicating that the plane has entered into a dive.
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