Flying Hammering Inspection Alignment for Hard-to-Reach Surfaces

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Solution Overview

Problem

Existing inspection systems require skilled operators to navigate inspection devices to specific locations, and they often cannot access areas where vehicles cannot enter, limiting the effectiveness and accessibility of hammering inspections.

Innovation Solution

A flying device with a hammering inspection means mounted on a flying unit, controlled by a ground-side device using laser beam positioning and flight path calculation to align the flying device's direction orthogonally with a specified line between two points on the inspection surface, allowing autonomous operation and access to previously inaccessible areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a moving flight vehicle or automatic moving vehicle is used for hammering inspection, then the inspection can be performed remotely or automatically, but the operator requires skillful operation or the vehicle cannot enter certain areas

Engineering Contradiction:
Improveautomation of inspection operationVSAvoidoperator skill requirement
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The inspection device performs self-navigation and self-positioning using GPS satellites and inertial measurement units. The system automatically determines its own position and orientation without requiring manual control, enabling the device to serve itself in navigating to inspection points and maintaining proper inspection posture.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical control with automated electronic control systems. GPS reception units, inertial measurement units, and microprocessors substitute for operator skill, automatically calculating position, orientation, and navigation paths to perform hammering inspections without skilled human intervention.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If a vehicle-mounted inspection device is used, then the inspection can be performed systematically, but the device cannot access areas where vehicles cannot enter

Engineering Contradiction:
Improveinspection coverageVSAvoidaccessibility to inspection areas
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent transitions from ground-based vehicle movement to aerial flight for inspection device deployment. By operating in the aerial dimension rather than ground level, the inspection device can access confined spaces, indoor areas, and regions inaccessible to ground vehicles while maintaining systematic inspection capabilities.

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

Solution Approach 2:

The inspection device is designed with universal applicability to multiple inspection environments. The same aerial platform can inspect both outdoor structures and indoor confined spaces, replacing the need for specialized ground-based devices and expanding accessibility to diverse inspection areas.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If remote control of the flying vehicle is required, then the operator can inspect dangerous or inaccessible areas, but the operator must be skillful and the inspection takes more time

Engineering Contradiction:
Improveaccessibility to inspection pointsVSAvoidinspection time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system continuously receives feedback from GPS satellites and inertial measurement units about the device's position and orientation. This real-time feedback enables automatic navigation corrections and maintains accurate positioning at inspection points without requiring manual intervention, reducing inspection time while preserving accessibility.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The inspection device pre-calculates navigation paths and positions using GPS and inertial data before reaching inspection points. By preparing flight paths and positioning strategies in advance, the system minimizes on-site adjustment time and reduces overall inspection duration while maintaining access to remote areas.

Inventive Principle:
Principle #10Preliminary action

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 skilled-independent operation for hammering inspections and allows inspections in areas inaccessible to traditional vehicles, improving efficiency and accessibility by using a flying device that can be controlled to align orthogonally with the inspection surface.

Implementation Method 1

The ground side device detects a relative position of the flying device by emitting a laser beam to the flying device and receiving said laser beam after reflection on a corner cube located on said flying device

Methodology Applied
Scientific EffectLaser: Laser

Implementation Method 2

receiving said laser beam after reflection on a corner cube located on said flying device

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentEP3467492B1Inspection system, control device, control method, and recording medium
Publication Date: 2021.08.25 NEC CORP
  • EP3467492B1 patent drawingFigure 1
  • EP3467492B1 patent drawingFigure 2
  • EP3467492B1 patent drawingFigure 3

AI summary

The objective of the present invention is to make it possible for an inspection operator to carry out a hammering sound inspection without it being necessary for the inspection operator to perform an operation to move an inspection device to the location to be inspected, and to make it possible to carry out a hammering sound inspection even with respect to a location to be tested that is difficult for a vehicle to reach. This inspection system is provided with: a flying device provided with a hammering sound inspection unit which performs an inspection by hitting a location to be inspected from a prescribed relative position relative to the location to be inspected, and a flying unit on which the hammering sound inspection unit is mounted and which flies; a ground-side device which is installed in a fixed relative position relative to the location to be inspected and which detects the position of the flying device; and a flight instruction unit which, on the basis of the position of the flying device as detected by the ground-side device, controls the flying device in such a way that the forward direction of the flying device is oriented from the ground-side device toward the location to be inspected.