Passage Work Position Projection Using Measured Structure Correction

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Solution Overview

Problem

Conventional technologies face challenges in providing highly accurate support for users working in passages, such as elevator shafts, due to differences between actual and designed work environments.

Innovation Solution

A work support device equipped with a measurement unit to correct work position information based on actual in-passage structures, using an irradiation unit to indicate a corrected work region, and an assist arm to handle tools, ensuring precise alignment and reduced user workload.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional work support methods are used in passages, then basic work functions can be performed, but work precision and accuracy deteriorate due to differences between actual and designed work environments

Engineering Contradiction:
Improvework position accuracyVSAvoidadaptability to on-site conditions
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary measurement of the actual passage structure before work begins, and pre-calculates corrected work position information based on the difference between actual and designed structures. This allows the irradiation unit to directly indicate accurate work positions without real-time calculation delays.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary processing step that calculates corrected work position information by comparing actual passage structure measurements with designed structure data. This intermediary calculation layer translates raw measurement data into actionable corrected position information that compensates for environmental deviations.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If manual work support without correction is used, then device complexity is low, but work precision deteriorates due to uncorrected position deviations

Engineering Contradiction:
Improvework position precisionVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The passage structure measurement unit serves multiple functions: it measures the actual passage structure, calculates position deviations, and provides correction data for work position alignment. This multi-functionality reduces the need for separate correction devices, thereby limiting the increase in overall system complexity.

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

Solution Approach 2:

The system implements a feedback loop where the measurement unit continuously monitors actual passage structure, compares it with designed structure, and adjusts work position information accordingly. This automated feedback mechanism maintains high precision without requiring complex manual intervention systems.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If automated correction systems are implemented, then work precision improves, but device complexity increases due to additional measurement and correction components

Engineering Contradiction:
Improvework position accuracyVSAvoidmeasurement and correction system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the measurement function and correction function into an integrated system. The passage structure measurement unit is combined with the work position correction logic, and both are coordinated with the irradiation unit to provide a unified work support solution. This merging reduces the need for separate independent systems.

Inventive Principle:
Principle #5Merging (Combining)

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 highly accurate and efficient work support tailored to the on-site conditions, improving work precision and reducing user effort in passages like elevator shafts.

Implementation Method 1

an irradiation unit configured to emit light indicating a work region

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentEP3792714B1Work support device and work support method
Publication Date: 2024.11.27 KK TOSHIBA
  • EP3792714B1 patent drawingFigure 1
  • EP3792714B1 patent drawingFigure 2
  • EP3792714B1 patent drawingFigure 3

AI summary

According to an arrangement, a work support device 10 includes a measurement unit 23 and an irradiation control unit 32F. The measurement unit 23 measures an in-passage structure of a passage inside of which a user can work. The irradiation control unit 32F controls an irradiation unit 24 to emit light indicative of a work region to a corrected work position obtained by correcting work position information set based on a predetermined designed in-passage structure indicative of an ideal structure in the passage by using a result of the measurement by the measurement unit 23.