Magnetic Landing Pad Detection for Aircraft in Low Visibility
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Solution Overview
Problem
Aircraft, particularly in low-visibility conditions such as night or inclement weather, struggle to visually locate landing pads, leading to potential landing hazards.
Innovation Solution
A magnetic landing pad system utilizing a magnetometer and a control unit to determine the location of the landing pad relative to the aircraft, or vice versa, by detecting and analyzing a magnetic field generated by a magnetic element on either the pad or the aircraft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual markers are used on the landing pad, then the aircraft can locate the landing pad during daytime, but the aircraft cannot locate the landing pad in poor light conditions such as night or inclement weather
Solution Approach 1:
The patent replaces the optical/visual system with a magnetic field-based detection system. A magnetometer on the aircraft detects magnetic fields generated by magnetic elements on the landing pad, allowing location determination independent of visual conditions. This substitution of detection mechanism resolves the contradiction by making landing pad location reliable across all lighting conditions.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the landing pad and the aircraft's detection system. The magnetic field serves as a medium that carries location information from the landing pad to the magnetometer, enabling detection without direct visual contact and thus resolving the lighting condition limitation.
2Measurement precision
If a high-sensitivity magnetometer is used to detect weak magnetic fields, then the magnetic field strength can be low, but the device complexity increases
Solution Approach 1:
The patent changes the detection parameter from visual/optical to magnetic field measurement. By utilizing the magnetic field domain instead of optical detection, the system achieves precise location measurement without requiring complex optical systems, thus resolving the contradiction between measurement precision and device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate aircraft landing in low-visibility conditions by using high-sensitivity magnetometers to detect and filter magnetic fields, allowing precise distance and orientation determination between the aircraft and the landing pad.
Implementation Method 1
an aircraft landing pad comprising a magnetic element arranged to generate a magnetic field around the landing pad
Implementation Method 2
an aircraft comprising a magnetometer and a control unit coupled to the magnetometer; wherein the control unit is configured, based on a signal output from the magnetometer, to determine a location of the landing pad relative to the aircraft
Data Source
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AI summary
A magnetic landing pad system, the system comprising: an aircraft landing pad comprising a magnetic element arranged to generate a magnetic field around the landing pad; and an aircraft comprising a magnetometer and a control unit coupled to the magnetometer; wherein the control unit is configured, based on a signal output from the magnetometer, to determine a location of the landing pad relative to the aircraft.