Crane Inspection Flight Paths for Narrow-Site Surface Coverage

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Solution Overview

Problem

Inspection work for cranes, particularly in narrow work sites, is challenging due to restricted flight paths of moving bodies like drones, which hinder effective safety inspections.

Innovation Solution

A flight method and setting device for moving bodies, including a detection unit that allows for differentiated flight processes over normal and specific portions of a crane, along with a flight path setting unit that divides the crane's periphery into regions for tailored flight paths, and a non-transitory computer readable medium for executing these settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the moving body flies to inspect all surfaces of the crane, then the inspection comprehensiveness is improved, but the flight time and operational complexity increase due to narrow work sites restricting flight paths

Engineering Contradiction:
Improveinspection comprehensivenessVSAvoidflight time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The inspection process is segmented into multiple flight processes: a first flight process for inspecting normal portions of the crane, and a second flight process for inspecting specific portions that require different detection angles or positions. This segmentation allows systematic coverage of all surfaces while managing flight time through structured routing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts flight parameters by changing at least one of the position, turning angle, or boom angle between the first and second flight processes. This dynamic adaptation enables the moving body to access and inspect specific portions of the crane that are difficult to reach from standard positions, thereby improving inspection comprehensiveness without requiring excessive flight time.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the moving body uses a single flight path for inspection, then the operational simplicity is improved, but the ability to detect specific portions of the crane is insufficient

Engineering Contradiction:
Improveflight path simplicityVSAvoiddetection accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

Different flight paths and detection parameters are applied to different regions of the crane. Normal portions are inspected using standard flight paths, while specific portions require customized flight paths with adjusted positions, turning angles, or boom angles. This local differentiation ensures detection accuracy is optimized for each specific inspection area while maintaining overall operational simplicity through automated path selection.

Inventive Principle:
Principle #3Local quality

3Area of stationary object

If the crane operates in a narrow work site, then the space utilization is improved, but the flight path availability for inspection is restricted

Engineering Contradiction:
Improvework site spaceVSAvoidflight path availability
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The system compensates for restricted horizontal flight paths in narrow work sites by utilizing vertical dimension adjustments through boom angle changes and altitude variations. By operating in three-dimensional space rather than being constrained to two-dimensional horizontal movement, the moving body can access and inspect all surfaces of the crane even when ground space is limited, thereby maintaining flight path availability despite narrow work site constraints.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20250321597A1Flight method for moving body, flight setting device, and non-transitory computer readable medium storing program
Publication Date: 2025.10.16 SUMITOMO HEAVY IND CONSTR CRANES CO LTD
  • US20250321597A1 patent drawing
  • US20250321597A1 patent drawing
  • US20250321597A1 patent drawing

AI summary

A flight method for a moving body including a detection unit, the method includes: a first flight process of flying while the detection unit detects a surface of a normal portion other than a specific portion of a crane; and a second flight process of flying while the detection unit detects a surface of the specific portion of the crane in a state where at least one of a position, a turning angle, and a boom angle is different, compared to the first flight process.