Dual Movement Detection for Telecontrol Position and Attitude Separation
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Solution Overview
Problem
Existing operation input devices for telecontrol systems, particularly in medical applications, fail to accurately separate position and attitude inputs, leading to unintended changes in both parameters, making it difficult for operators to control manipulators with precision and intent.
Innovation Solution
The device employs a dual detection system with a first movement detection unit for wrist position and attitude and a second movement detection unit for finger position and attitude, allowing separate control of position and attitude inputs, thereby enabling precise and intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single detection unit is used to detect both position and attitude, then the device complexity is reduced, but the position and attitude inputs become mixed up and cannot be controlled separately
Solution Approach 1:
The detection system is divided into two independent units: a first detection unit for detecting position and a second detection unit for detecting attitude. This segmentation allows position and attitude to be controlled separately, resolving the mixing problem while maintaining manageable device complexity through modular design.
2Measurement precision
If the operator moves the finger to change attitude, then the attitude input is achieved, but the position also changes unintentionally
Solution Approach 1:
By separating the detection functions into independent units, movements intended for attitude adjustment no longer cause unintended position changes. The first detection unit exclusively captures position information while the second captures attitude information, ensuring each parameter is controlled with the desired precision and reliability.
3Measurement precision
If the operator tries to control position while keeping attitude fixed, then position control is attempted, but attitude changes unintentionally due to finger movement
Solution Approach 1:
The independent detection units ensure that position control operations do not cause unintended attitude changes. The first detection unit measures position movements while the second detection unit independently measures attitude, allowing precise position control with reliable attitude stability.
4Adaptability or versatility
If a link mechanism with six degrees of freedom is used, then the object's six degrees of freedom can be controlled, but the separation of position and attitude control is not achieved
Solution Approach 1:
The six degrees of freedom are divided into three for position control (detected by the first unit) and three for attitude control (detected by the second unit). This segmentation maintains full adaptability for controlling objects with six degrees of freedom while enabling separate and intuitive position and attitude input operations.
Data Source
AI summary
In the operation input device of the prior art, the input of a position and the input of an attitude are mixed up and both the position and attitude may be changed by the result of the input of a change in attitude. Therefore, the intention of an operator cannot be reflected accurately.To solve the above problem, an operation input device of the present invention has a first movement detection unit for detecting the position and attitude of a first operation input unit and a second movement detection unit, connected to the first movement detection unit, for detecting the position and attitude of a second operation input unit to separate a part for inputting a position from a part for inputting an attitude.