Single-Hand 6-DOF Hand Controller Without Cross-Coupling
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Solution Overview
Problem
Conventional control systems require multiple discrete controllers to achieve six degrees of freedom, making them cumbersome and inefficient for applications that need simultaneous rotational and translational movements.
Innovation Solution
A unified hand controller with a first control member for rotational inputs and a second control member for translational inputs, both operable by a single hand, using a controller processor to generate signals for pitch, yaw, roll, x-axis, y-axis, and z-axis movements without cross-coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple discrete controllers are used to achieve six degrees of freedom, then rotational and translational movements can be controlled independently, but the system becomes cumbersome and requires multiple controllers
Solution Approach 1:
The patent combines multiple discrete controllers into a single unified hand controller that integrates both rotational control (via first control member) and translational control (via second control member). This merging eliminates the need for multiple separate controllers while maintaining independent control of all six degrees of freedom through a single device operated by one hand
2Device complexity
If a single hand controller is used for six degrees of freedom, then the number of controllers is reduced, but cross-coupling between rotational and translational movements may occur
Solution Approach 1:
The unified hand controller is segmented into distinct functional zones: a first control member (joystick) for rotational control and a second control member (thumb stick) for translational control. Each control member is positioned and shaped to be operated by specific parts of the hand, ensuring that rotational and translational inputs remain independent and do not cross-couple during operation
3Productivity
If conventional control systems are used, then multiple controllers provide comprehensive control, but the system becomes inefficient for simultaneous rotational and translational movements
Solution Approach 1:
The unified hand controller serves multiple functions simultaneously: it controls all six degrees of freedom (three rotational, three translational) through two integrated control members. This multi-functional design allows operators to perform both rotational and translational control tasks with a single device, significantly improving efficiency compared to conventional systems requiring multiple separate controllers
Data Source
AI summary
Disclosed is a controller including a first control member, a second control member that extends from a portion of the first control member, and a controller processor that is operable to produce a rotational movement output signal in response to movement of the first control member, and a translational movement output signal in response to movement of the second control member relative to the first control member. The rotational movement output signal may be any of a pitch movement output signal, a yaw movement output signal, and a roll movement output signal, and the translational movement output signal may be any of an x-axis movement output signal, a y-axis movement output signal, and a z-axis movement output signal. In exemplary embodiments, the first control member may be gripped and moved using a single hand, and the second control member may be moved using one or more digits of the single hand, thus permitting highly intuitive, single-handed control of multiple degrees of freedom, to and including, all six degrees of rotational and translational freedom without any inadvertent cross-coupling inputs.