Patent ID: 9688388
Date: 2017-06-27
CPC Classifications: B64C,G01D,G01P,H03K

Claim:
1. A system comprising: a monostable multivibrator in electrical communication with a signal conditioner, the signal conditioner configured to receive wheel speed data at a frequency, the signal conditioner configured to send pulse information to the monostable multivibrator, the monostable multivibrator further configured to set a time period in response to the pulse information; a wheel angular displacement circuit in electrical communication with the monostable multivibrator, the wheel angular displacement circuit comprises a metal-oxide-semiconductor field-effect transistor (MOFSET) and a resistor-capacitor network, the wheel angular displacement circuit configured to receive the pulse information, wherein a voltage output from the wheel angular displacement circuit decreases in response to an increase in a frequency of the pulse information; and a comparator in electrical communication with the wheel angular displacement circuit and a reference voltage source, wherein the comparator is configured to compare the voltage output from the wheel angular displacement circuit and the reference voltage source, wherein a likelihood of a landing event is determined based upon the comparison.