Remote Control Member Auto-Calibration for Construction Machines

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Solution Overview

Problem

In remote control systems for construction machines, users face complexity in manually setting and storing the positions of control members, which increases operational workload and can lead to inefficiencies.

Innovation Solution

A remote control device equipped with an electric drive unit, position detection unit, control unit, reference position storage unit, and operation range setting unit, allowing the control member to be driven and displaced automatically, thereby simplifying the process of setting and storing operation ranges without manual user intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual control member positioning is used for initial setting, then the system can store control member positions, but the user workload increases and operation becomes complex

Engineering Contradiction:

Improvecontrol member position storageVSAvoiduser workload

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The control member positioning system performs self-service by automatically detecting and storing its own position information through the position detection unit, eliminating the need for manual positioning operations by the user while maintaining reliable position storage functionality

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical positioning system with an automated detection system using sensors and control units that automatically detect control member positions and store them, substituting human operation with electronic detection and control mechanisms

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If manual control member positioning is used for initial setting, then the system can establish operation ranges, but the setting process becomes time-consuming

Engineering Contradiction:

Improveoperation range settingVSAvoidinitial setting time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary automatic detection and storage of control member positions during initialization, establishing operation ranges before actual operation begins. The control unit automatically detects positions and stores them in advance, eliminating time-consuming manual adjustment during setup

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual time-consuming positioning operations with automated electronic detection systems that quickly identify and record control member positions, significantly reducing the time required for initial setting while ensuring reliable operation range establishment

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3693829B1Remote control device for a construction machine

Publication Date: 2023.02.22 IHI CORP

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AI summary

A remote control device includes an electric drive unit controlling a control member, a position detection unit detecting a position of the control member, a control unit controlling operation of the electric drive unit, a reference position storage unit storing information related to a reference position of the control member, and an operation range setting unit setting an operation range of the control member from the reference position based on an output of the electric drive unit when the control member is displaced by the electric drive unit.