Robotic Hand Assembly for Real-Time Sign Language Translation
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Solution Overview
Problem
Emergency press conferences during disasters often fail to communicate effectively with the hearing impaired and those using alternative languages, as existing systems are not equipped to translate sign languages in real-time.
Innovation Solution
A robotic hand assembly with dexterous fingers and a controller that can translate spoken words into American Sign Language (ASL) by actuating servomotors to mimic human hand gestures, using a base palm portion with rotating and pivoting fingers, and a graphical user interface for input processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a robotic hand assembly is designed to replicate human hand dexterity and flexion for sign language translation, then communication effectiveness for hearing impaired individuals is improved, but device complexity increases due to multiple servomotors and tensile members
Solution Approach 1:
The robotic hand is divided into multiple independent fingers, each with its own servomotor and tensile member system. This segmentation allows each finger to be controlled independently to replicate specific sign language gestures, achieving the necessary adaptability while managing complexity through modular design
Solution Approach 2:
The robotic hand assembly is designed to perform multiple functions: it can translate various sign languages, replicate different hand gestures, and adapt to different communication scenarios. The base palm portion and finger structure are universally designed to accommodate diverse sign language requirements
2Measurement precision
If the robotic hand assembly uses multiple servomotors and tensile members to achieve precise finger control, then gesture accuracy is improved, but the weight of the device increases
Solution Approach 1:
The patent replaces complex mechanical transmission systems with electrical servomotors and tensile members. This substitution allows for precise control of finger positions through electrical signals while reducing the mechanical complexity and weight compared to traditional purely mechanical robotic hands
Solution Approach 2:
The system uses servomotors that can precisely adjust the tension and length of tensile members, allowing dynamic control of finger positions. By changing the electrical parameters of the servomotors, the system achieves high positioning accuracy without requiring heavy mechanical structures
3Manufacturing precision
If the robotic hand assembly is designed with dexterous fingers capable of complex movements, then sign language translation accuracy is improved, but ease of operation decreases due to complex actuation mechanisms
Solution Approach 1:
The controller serves as an intermediary between the user's input (sign language translation requirements) and the robotic hand's physical movements. It processes the desired gestures and translates them into coordinated commands for multiple servomotors, simplifying the operation while maintaining high gesture accuracy
Solution Approach 2:
The robotic hand assembly is designed to automatically coordinate its own multiple servomotors and tensile members based on controller commands. The system self-manages the complex actuation sequences required for accurate sign language gestures without requiring manual intervention for each individual motor
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 effective communication of sign languages in emergency situations, ensuring critical information reaches all individuals, including those who communicate through sign languages, by accurately replicating human hand gestures through a robotic system.
Implementation Method 1
Each of the plurality of fingers is configured to rotate and pivot about a plurality of joint points. The plurality of fingers include a respective ball joint positioned at each joint point.
Implementation Method 2
The plurality of fingers include a plurality of tensile members coupled to one or more of the plurality of fingers. The at least one servomotor is configured to selectively and collectively actuate one or more tensile members in the plurality of tensile members into an extension or flexion.
Data Source
AI summary
Intelligent robotic hand assembly systems.