Remote Work Machine Assistance for Interference-Aware Operation
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Solution Overview
Problem
Existing remote operation assistance systems for construction machines do not adequately address interference from third parties during remote operation, requiring operators to interrupt operations manually.
Innovation Solution
A remote operation assistance system that includes a distance acquisition unit, an attribute acquisition unit, and an interference determination unit to assess the likelihood of interference, with an assistance control unit that automatically controls the work machine's operation to prevent or minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual monitoring by operator is used, then system complexity is low, but interference detection capability is insufficient requiring operation interruption
Solution Approach 1:
The system segments the monitoring task into multiple specialized units: distance acquisition unit for measuring distance to moving bodies, attribute acquisition unit for identifying moving body characteristics, interference determination unit for assessing interference likelihood, and assistance control unit for executing protective actions. This segmentation enables comprehensive interference detection while maintaining manageable system complexity through modular design.
Solution Approach 2:
The control unit acts as an intermediary between the detection units and the work machine operation. It receives data from distance and attribute acquisition units, determines interference likelihood, and automatically executes protective control actions without requiring direct operator intervention, thereby improving reliability while keeping the operator's task simple.
2Productivity
If automatic interference control is implemented, then operation continuity is improved, but device complexity increases
Solution Approach 1:
The system performs preliminary actions by continuously acquiring distance and attribute data before interference actually occurs. The interference determination unit assesses likelihood in advance, and the assistance control unit executes protective control actions proactively to prevent interference, ensuring operation continuity without requiring complex real-time reaction systems.
Solution Approach 2:
The system implements feedback loops where the control unit continuously receives data from detection units, determines interference likelihood, executes protective actions, and monitors the results. This feedback mechanism enables automatic interference control that maintains operation continuity while managing complexity through iterative optimization.
3Measurement precision
If comprehensive moving body detection is used, then interference determination accuracy is improved, but information processing load increases
Solution Approach 1:
The attribute acquisition unit focuses on acquiring specific local qualities of moving bodies that are most relevant to interference determination, such as distance, type, and key characteristics. By selectively acquiring only the most pertinent attributes rather than comprehensive data, the system achieves high determination accuracy while minimizing information processing load and energy consumption.
Data Source
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AI summary
A purpose of the present invention is to provide a remote operation assistance system used for assisting an operator OP in remotely operating a work machine. In order to achieve this purpose, the remote operation assistance system of the present invention includes: a distance acquisition unit 201 that obtains information on a distance from the operator OP to a moving body M; an attribute acquisition unit 202 that obtains an attribute to which the moving body M belongs; an interference determination unit 203 that determines a level of likelihood of interference occurring with the remote operation, based on the distance obtained by the distance acquisition unit 201 and the attribute obtained by the attribute acquisition unit 202; and an assistance control unit 204 that performs control to assist in the remote operation according to a result of the determination by the interference determination unit 203.