Dual Joystick Motion Control Using Body Lean and Head Tracking
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Solution Overview
Problem
Existing dual joystick controllers require users to remain stationary, as they primarily engage fine motor skills of the hands and wrists, limiting full-body movement and exercise during use.
Innovation Solution
A system utilizing separate motion sensors for body lean and tilt, head rotation, and limb movement to convert these into virtual joystick inputs, allowing users to control devices with full-body movements while exercising or engaging in activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dual joystick controllers are used, then control precision and device compatibility are improved, but user mobility and physical activity are restricted
Solution Approach 1:
The patent replaces the mechanical dual joystick control system with a motion sensing system that detects body movements through accelerometers, gyroscopes, and other sensors. This substitution allows users to control devices through natural body movements rather than manual joystick manipulation, resolving the contradiction between control precision and user mobility.
Solution Approach 2:
The patent introduces motion sensors and processing systems as intermediaries between the user's body movements and the device control. These intermediaries capture body movement data, process it through algorithms, and translate it into control commands, enabling both precise control and full user mobility simultaneously.
2Ease of operation
If VR headsets and hand-held controllers are used, then full-body movement capability is improved, but system complexity and fine motor skill requirements increase
Solution Approach 1:
The patent creates a universal motion control system that can replace both VR headsets and hand-held controllers with a single integrated approach. The motion sensing system detects various body movements and translates them into appropriate control commands, eliminating the need for multiple specialized devices while maintaining full-body movement capability.
Solution Approach 2:
The patent extracts the essential control function from complex VR systems and hand-held controllers, isolating the motion detection and translation capabilities into a standalone system. This extraction removes unnecessary complexity while preserving the core functionality of enabling full-body movement for device control.
3Adaptability or versatility
If dual joystick controllers are used, then control standardization is improved, but health benefits and exercise opportunities are reduced
Solution Approach 1:
The patent transitions from a static control paradigm (seated joystick operation) to a dynamic one (active body movement). The system adapts control inputs to various types of physical activity, allowing users to exercise while maintaining standardized device control through motion sensors that detect and interpret body movements in real-time.
Data Source
AI summary
A system and method for full body movement control of dual joystick operated devices. The system uses two motion sensors: a first motion sensor for body lean and tilt, and a second motion sensor for head rotation and tilt. The output from the first motion sensor is converted into a virtual joystick output signal corresponding to a first standard joystick which controls one aspect of movement, and the output from the second motion sensor is converted into a virtual joystick output signal corresponding to a second standard joystick which controls a different aspect of movement.