Master-Slave Tactile System Calculating Substance Physical Characteristics
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Solution Overview
Problem
Existing information presentation systems that utilize bilateral control for master and slave devices primarily rely on tactile force transmission for operator assistance, but there is a need for further assistance beyond tactile force alone.
Innovation Solution
An information presentation system that includes a master device, a slave device, control means for tactile force transmission, calculation means for determining physical characteristics of substances based on external forces, and presentation means for displaying these characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tactile force transmission is used for operator assistance, then operational support is provided, but further assistance beyond tactile force is insufficient
Solution Approach 1:
The patent introduces calculation means as an intermediary between the slave device and the operator. This intermediary calculates physical characteristics (elasticity, viscosity, inertia) from sensor data, transforming raw force data into meaningful physical property information that can be presented to the operator, thereby bridging the information gap without adding direct physical contact capability
Solution Approach 2:
The patent replaces the need for direct mechanical/tactile contact with substances (which would be physically impossible in remote operations) by substituting mechanical sensing with calculation-based inference. The calculation means computes physical characteristics from measured external forces, substituting direct mechanical interaction with computational analysis to provide equivalent informational value
2Reliability
If bilateral control with tactile force transmission is implemented, then operator support is achieved, but quantitative physical characteristics presentation is lacking
Solution Approach 1:
The patent implements a feedback loop where sensor data from the slave device is continuously fed to the calculation means, which computes physical characteristics and feeds this information back through the presentation means to the operator. This closed-loop feedback provides continuous quantitative updates on physical properties, enhancing measurement precision while maintaining reliable operational support through the established bilateral control framework
Solution Approach 2:
The patent transforms the operational parameters from simple force magnitude measurements to derived physical characteristic parameters (elasticity, viscosity, inertia). By changing the parameter representation from raw sensor data to calculated physical properties, the system achieves precise quantitative measurement of substance characteristics while maintaining the reliability of the underlying bilateral control system
Data Source
AI summary
An object of the present invention is to provide further assistance in addition to assistance by tactile force transmission. An information presentation system includes a master device to which an operation by an operator is input and a slave device that operates in accordance with the operation input to the master device. Furthermore, the information presentation system includes a tactile force transmission unit, a calculation unit, and a presentation unit. The tactile force transmission unit controls tactile force transmission in the master device and the slave device. The calculation unit calculates physical characteristics of a substance in contact with the slave device on the basis of an external force input from the environment to the slave device while the slave device maintains a predetermined motion state. The presentation unit presents the physical characteristics of the substance calculated by the calculation unit.