Remote Control Seat Inclination Dynamics for Work Machine Operators
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Solution Overview
Problem
Operators of remote-controlled work machines experience fatigue due to unnecessary vibration and shaking, which can be caused by providing non-essential inclination and rotation information, affecting safety and workability.
Innovation Solution
A remote control system that synchronizes the operator's seat with the inclination direction and amount detected by sensors only when the machine is traveling, and maintains a static inclination when the machine is not traveling, while removing vibration components from the image output during non-traveling operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seat is synchronized with the inclination and rotation of the machine during all operations, then the operator can feel the operation force and maintain realism, but the operator experiences fatigue due to unnecessary vibration and shaking during non-traveling operations
Solution Approach 1:
The system dynamically adjusts the seat synchronization based on the machine's operational state. When the machine is traveling, the seat is synchronized with inclination and rotation to provide realistic feedback. When the machine is stationary during work operations, the seat synchronization is deactivated or reduced, preventing unnecessary vibration transmission to the operator while maintaining operational realism during travel
Solution Approach 2:
The system changes the synchronization parameters based on the detected operational state. During traveling, full synchronization with inclination and rotation is applied. During non-traveling work operations, the synchronization parameters are modified to minimize or eliminate seat movement, thereby reducing operator fatigue while preserving the ability to feel necessary operational forces
2Loss of information
If all inclination and rotation information is provided to the operator, then complete situational awareness is achieved, but unnecessary information increases operator fatigue
Solution Approach 1:
The system applies different information provision strategies to different operational contexts. During traveling, complete inclination and rotation information is provided to ensure situational awareness. During stationary work operations, only essential information is provided, filtering out unnecessary data that would contribute to operator fatigue while maintaining adequate situational awareness
3Loss of information
If the seat moves to provide inclination information during non-traveling operations, then the operator maintains situational awareness, but the unnecessary vibration reduces workability
Solution Approach 1:
The system dynamically controls seat movement based on the machine's operational state. During non-traveling work operations, the seat movement is restricted or eliminated to prevent vibration that would reduce workability, while alternative methods such as visual displays or haptic feedback provide necessary inclination awareness without the harmful effects of continuous mechanical vibration
Data Source
AI summary
Provided is a remote control system which controls a work machine from a remote place in order to improve safety and workability and to reduce fatigue of an operator. In the remote control system which controls the work machine from a remote place, a seat where the operator sits is driven to be inclined in conjunction with the machine, so that inclination information of the machine at the time of traveling is provided to the operator to be sensible and the safety and the workability are improved. On the other hand, a large inclined vibration caused by the work of the machine is not transferred to the operator since an inclination amount of the seat is kept when the machine is not traveling, so that the fatigue of the operator is reduced.