Single-Hand 6DoF Controller With Dynamic Balance and Low Cross-Coupling
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Solution Overview
Problem
Conventional control systems require multiple discrete controllers to manage six degrees of freedom, leading to complexity and inefficiency, particularly in applications like drone flight and virtual/augmented reality, where intuitive, single-handed control with minimal cross-coupling is desired.
Innovation Solution
A single-hand controller with first, second, and third control members, allowing independent movement and feedback, coupled with a wrist or forearm brace for stabilization, enabling precise control in six degrees of freedom with tactile feedback and reduced fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple discrete controllers are used to control six degrees of freedom, then control precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple discrete controllers (joystick, control column, cyclic stick, foot pedals) into a single integrated controller that can control all six degrees of freedom. The controller includes a first control member for rotational inputs (pitch, yaw, roll) and a second control member for translational inputs (x, y, z axes), merging functions that traditionally required separate devices into one unified system.
Solution Approach 2:
The single controller is designed to perform multiple functions simultaneously - it can control rotational movements (pitch, yaw, roll) and translational movements (x, y, z axes) within a single device. The controller members can be repositioned and reconfigured to control different parameters, making the device universal for various control tasks including drone flight, virtual reality, and augmented reality applications.
2Measurement precision
If multiple discrete controllers are used, then control precision is improved, but ease of operation deteriorates
Solution Approach 1:
By merging multiple control functions into a single handheld controller, the system eliminates the need for users to operate multiple separate devices. The first and second control members are both operable from a single hand position, making the interface more intuitive and easier to operate while maintaining precise control of all six degrees of freedom.
3Ease of operation
If control members are positioned for single-hand operation, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The controller is segmented into distinct functional zones - the first control member for rotational control and the second control member for translational control. Each segment can be independently positioned and operated, allowing complex six-degree-of-freedom control to be broken down into manageable, intuitively operated components that fit within a single hand.
4Measurement precision
If control members are made independent, then control precision is improved, but device complexity increases
Solution Approach 1:
The controller divides control functions into independent segments - the first control member handles rotational parameters (pitch, yaw, roll) while the second control member handles translational parameters (x, y, z axes). This segmentation allows each control member to operate independently with precise control over its specific degree of freedom, while the overall device remains integrated and manageable.
Data Source
AI summary
A controller is capable of controlling an asset or target in physical and/or virtual three-dimensional space using a single hand by generating control inputs in four or more degrees of freedom while also limiting cross-coupling (unintended motions). The controller includes a first control member is configured to be gripped in a user's single, second control member is disposed on or near a top end of the first member movable with at least one degree of freedom independently of the movement of the first control member, and a third control member positioned on the first member for displacement by one or more digits of the user's single hand and coupled with the second member to move in opposition to movement of the second control member.