Flying Object Control System Thrust Threshold Takeoff

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Solution Overview

Problem

Existing flying object control systems, such as those described in PTL 1, do not enable smooth takeoff operations from charging stations, limiting the convenience of inspectors using unmanned flying objects for aerial inspections, as the hanging structure prevents release from the charging station.

Innovation Solution

A flying object control system comprising a flying object and a setting base that communicate to manage takeoff, where the flying object controls thrust to exceed a first threshold, notifies the setting base, and upon confirmation, the setting base releases mechanical and magnetic constraints, allowing the flying object to take off safely by reducing thrust to a second threshold.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the flying object is held by the setting base using magnetic and mechanical constraints, then the flying object can be securely stored and charged, but the takeoff operation becomes complex and non-smooth

Engineering Contradiction:

Improvesecure holdingVSAvoidtakeoff operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The holding release is triggered automatically when thrust reaches a predetermined threshold, preparing the system for takeoff in advance. The magnetic holding force is deactivated before mechanical release, creating a staged preparation sequence that smooths the transition from stationary to flying state.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The control device monitors thrust magnitude in real-time and uses this feedback to determine when to initiate the holding release sequence. This closed-loop control ensures the takeoff occurs at the optimal moment when thrust is sufficient, making the operation smooth and reliable.

Inventive Principle:

Principle #23Feedback

2Speed

If the holding release is triggered immediately when thrust exceeds a high threshold, then the takeoff is rapid, but the flying object may become unstable during transition

Engineering Contradiction:

Improvetakeoff speedVSAvoidflight stability

Core Design Contradiction:

SpeedVSStability of the object's composition

Solution Approach 1:

The magnetic holding release is activated in advance when thrust reaches the first threshold, preparing the system for takeoff before full thrust is achieved. This preliminary action allows for a more controlled and stable transition compared to immediate release.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The control system uses dynamic threshold management with two distinct thrust levels: a first threshold for initiating holding release and a second (higher) threshold for complete mechanical release. This dynamic approach adjusts the release criteria based on current thrust conditions, optimizing both speed and stability.

Inventive Principle:

Principle #15Dynamics

3Reliability

If multiple holding mechanisms (magnetic and mechanical) are used, then the holding reliability is improved, but the device complexity increases

Engineering Contradiction:

Improveholding reliabilityVSAvoidholding mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system replaces purely mechanical holding with a combination of magnetic holding (electromagnetic actuators) and mechanical holding (physical constraints). This substitution allows for more reliable and controllable holding with the ability to release magnetically before mechanical release, improving takeoff smoothness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The control device merges magnetic and mechanical holding mechanisms into a unified control system that manages both types of constraints. By coordinating the release of both mechanisms through a single control logic based on thrust thresholds, the system achieves reliable holding without proportionally increasing operational complexity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11535396B2Flying object control system and flying object control method

Publication Date: 2022.12.27 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

AI summary

A flying object control system includes a flying object, and a setting base that performs holding of the flying object and releasing the holding, the flying object and the setting base being communicable with each other. The flying object controls, upon receiving a takeoff instruction, thrust for taking off from a predetermined initial position, and when the thrust becomes greater than or equal to a first threshold, the flying object notifies the setting base of a start notification. Upon receiving the start notification, the setting base releases the holding of the flying object and notifies the flying object of a release completion notification. Upon receiving the release completion notification, the flying object takes off from the predetermined initial position by controlling the thrust in such a manner that the thrust becomes a second threshold smaller than the first threshold.