Systems and methods for landing identification
First Claim
1. A landing identification system comprising:
- a wheel speed sensor that outputs a signal indicative of angular displacement;
a signal conditioner that receives the signal indicative of angular displacement and outputs a conditioned angular displacement signal;
a monostable multivibrator that receives the conditioned angular displacement signal,wherein the monostable multivibrator is in electrical communication with a wheel angular displacement circuit,a comparator in electrical communication with the wheel angular displacement circuit and configured to receive a reference voltage,wherein the monostable multivibrator is configured to set a time period in response to receiving the conditioned angular displacement signal,wherein the wheel angular displacement circuit changes state in response to angular displacement above a displacement threshold over a first time period,wherein the comparator compares the reference voltage to a voltage output of the wheel angular displacement circuit, andwherein a voting scheme determines a likelihood of a landing event based upon the comparison.
1 Assignment
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Accused Products
Abstract
Systems and methods disclosed herein may be useful for use in landing identification. In this regard, a method is provided comprising receiving pulse information over a first time period, wherein the pulse information is indicative of an angular distance traveled by a first wheel, comparing the pulse information to a threshold value, and determining a likelihood of a landing event based upon the comparison. In various embodiments, a system is provided comprising a monstable multivibrator in electrical communication with a metal-oxide-semiconductor field-effect transistor (MOSFET), a resistor-capacitor network in electrical communication with the MOSFET, and a comparator that receives a voltage from the resistor-capacitor network and a reference voltage.
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Citations
6 Claims
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1. A landing identification system comprising:
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a wheel speed sensor that outputs a signal indicative of angular displacement; a signal conditioner that receives the signal indicative of angular displacement and outputs a conditioned angular displacement signal; a monostable multivibrator that receives the conditioned angular displacement signal, wherein the monostable multivibrator is in electrical communication with a wheel angular displacement circuit, a comparator in electrical communication with the wheel angular displacement circuit and configured to receive a reference voltage, wherein the monostable multivibrator is configured to set a time period in response to receiving the conditioned angular displacement signal, wherein the wheel angular displacement circuit changes state in response to angular displacement above a displacement threshold over a first time period, wherein the comparator compares the reference voltage to a voltage output of the wheel angular displacement circuit, and wherein a voting scheme determines a likelihood of a landing event based upon the comparison. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification