Wearable IMU Orientation Control for Smooth Proportional Commands
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Solution Overview
Problem
Existing control systems for robotic and mechanical devices lack efficient and accurate processing of user signals for smooth directional and proportional control, particularly in applications requiring precise orientation control.
Innovation Solution
A control apparatus comprising a sensor module with an inertial measurement unit (IMU) worn by the user, which detects body input and transmits orientation data wirelessly to a device module, allowing for real-time control of associated devices such as prosthetic limbs or other mechanical systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional control systems are used for robotic and mechanical devices, then the system structure is simple, but the processing of user signals is not efficient and accurate enough for smooth directional and proportional control
Solution Approach 1:
The control system is divided into separate functional modules: sensor module (with IMU for detecting body orientation), communication module (for wireless signal transmission), and device module (for executing control commands). This segmentation allows each module to be optimized independently, improving overall signal processing accuracy while managing system complexity through modular design
Solution Approach 2:
The sensor module acts as an intermediary between the user's body movements and the controlled device. It captures body orientation data through the IMU, processes this information, and transmits it wirelessly to the device module, enabling precise and smooth control without requiring direct mechanical connection
2Ease of operation
If sensor modules with IMU are worn by users for real-time control, then directional and proportional control is smooth and accurate, but the power consumption and module size increase
Solution Approach 1:
The system uses periodic sampling of body orientation data at optimized intervals rather than continuous monitoring. The IMU captures body orientation at specific time intervals, and the communication module transmits data periodically, reducing power consumption while maintaining smooth control responsiveness
Solution Approach 2:
The patent replaces complex mechanical control linkages with wireless electronic communication. The IMU electronically detects body orientation and transmits control signals wirelessly to the device module, eliminating the need for mechanical connections and reducing overall system power requirements compared to traditional wired control systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise and proportional control of devices by translating user body orientation into device commands, providing smooth and accurate directional control with reduced power consumption and module size, facilitating use in various applications including prosthetics and virtual devices.
Implementation Method 1
The at least one sensor module is adapted to be worn by a user on at least one body part with the inertial measurement unit detecting body input
Data Source
AI summary
A system for control of a device includes at least one sensor module detecting orientation of a user's body part. The at least one sensor module is in communication with a device module configured to command an associated device. The at least one sensor module detects orientation of the body part. The at least one sensor module sends output signals related to orientation of the user's body part to the device module and the device module controls the associated device based on the signals from the at least one sensor module.