Wall-Contact Flying Machine Control With Sliding Vertical Blades

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Solution Overview

Problem

Flying machines with rotary blades struggle to maintain contact with vertical surfaces under external forces like crosswinds, as tilting forward reduces vertical thrust while increasing pressing force, and reducing tilt decreases the pressing force on the wall surface.

Innovation Solution

The flying machine incorporates vertical blades that can incline and slide within the rotation area of the rotary blades, allowing for increased pressing force on the wall surface while maintaining vertical thrust by adjusting the rotational speeds of the rotary blades and controlling the inclination and sliding of the vertical blades.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If external forces such as crosswind act on the flying machine, then the flying machine can perform additional maneuvers, but the wheels may become separated from the vertical wall surface

Engineering Contradiction:

ImprovemaneuverabilityVSAvoidcontact stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The vertical blades generate a counteracting horizontal thrust that opposes external forces like crosswinds, preventing the wheels from separating from the wall surface. This active counterweight mechanism maintains contact stability while allowing the flying machine to operate in various environmental conditions and perform maneuvers.

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The system continuously monitors the contact status of the wheels with the wall surface and adjusts the position and orientation of the vertical blades in real-time to maintain stable contact. This feedback control ensures reliability during maneuvers and under external forces by dynamically compensating for disturbances.

Inventive Principle:

Principle #23Feedback

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

This solution enables the flying machine to maintain horizontal attitude and increase the pressing force on the wall surface, ensuring stable contact and movement even under external forces, without compromising vertical thrust.

Implementation Method 1

vertical blades arranged below the plurality of rotary blades and configured so as to be capable of inclining toward a rear side or toward a front side, and so as to be capable of sliding within a range in a direction toward the front side or the rear side in a rotation area of the plurality of rotary blades

Methodology Applied

Scientific EffectAerodynamic force: Aerofoil

Data Source

PatentUS11142314B2Flying machine and control method of flying machine

Publication Date: 2021.10.12 FUJITSU LTD

AI summary

A flying machine includes a plurality of rotary blades arranged in the front and rear and on the left and right, a plurality of motors configured to respectively rotate the plurality of rotary blades, contact portions located in front of the plurality of rotary blades and configured to contact a wall surface, vertical blades arranged below the plurality of rotary blades and configured so as to be capable of inclining toward a rear side or toward a front side, and so as to be capable of sliding within a range in a direction toward the front side or the rear side in a rotation area of the plurality of rotary blades and driving units configured to incline the vertical blades toward the rear side or front side, and to slide the vertical blade in a direction toward the front side or rear side.