Airflow Manipulation of Deformable Objects With Visual Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Precise airflow manipulation of deformable objects is challenging due to complex aerodynamics and unobservable airflow parameters, making model-based approaches computationally costly and difficult to control effectively.
Innovation Solution
A robotic system with a first and second gripper and a blower arm, controlled by processors, performs grasping and blowing actions on deformable objects using a self-supervised learning framework to adjust airflow direction based on visual feedback, allowing simultaneous force application in a three-dimensional space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If model-based approaches are used for airflow manipulation, then manipulation precision can be improved, but computational cost increases significantly
Solution Approach 1:
The patent replaces complex model-based computational approaches with a reinforcement learning agent that learns airflow manipulation policies through simulation. This substitutes the mechanical/computational system of aerodynamic modeling with a data-driven learning system that achieves comparable manipulation precision without the high computational cost of real-time aerodynamic simulations.
Solution Approach 2:
The patent creates a simplified simulation environment that copies the essential physics of airflow-deformable object interactions. Instead of using complex real-world aerodynamic models, the system uses a simplified simulation that captures the key dynamics, allowing the RL agent to learn effective policies with much lower computational requirements while maintaining manipulation effectiveness.
2Device complexity
If standard hardware is used for airflow control, then device complexity is reduced, but action noise and control precision deteriorate
Solution Approach 1:
The patent implements a closed-loop control system where the reinforcement learning agent observes the state of the deformable object and adjusts airflow actions accordingly. This feedback mechanism compensates for the imprecision of standard hardware by continuously adapting actions based on observed outcomes, thereby achieving better effective control precision without requiring complex hardware.
Solution Approach 2:
The system dynamically adjusts airflow parameters (such as blowing duration, intensity, and timing) based on the learned policy and observed object state. By changing these parameters adaptively rather than using fixed control settings, the system compensates for hardware limitations and achieves precise manipulation despite using standard, simple airflow generation devices.
3Measurement precision
If direct contact manipulation is used, then control precision is improved, but adaptability to deformable objects deteriorates
Solution Approach 1:
The patent introduces airflow as an intermediary between the robot and the deformable object. Instead of direct contact, the system uses air blasts to manipulate objects, which serves as a flexible mediator that can adapt to various deformable object types (clothes, bags, blankets) while still achieving effective manipulation through learned control policies.
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 efficient manipulation of under-actuated objects with large surface areas or volumes by expanding workspace and improving task efficiency, such as cloth unfolding and bag opening, without requiring direct contact.
Implementation Method 1
blowing air toward the deformable object using an air pump of a blower robot arm
Data Source
AI summary
Systems and methods for manipulating deformable objects using air are disclosed. In one embodiment, a system for manipulating a deformable object, the system includes a first robot arm having a first gripper, a second robot arm having a second gripper, a blower robot arm having an air pump, and one or more processors programmed to control the first robot arm and the second robot arm to grasp the deformable object using the first gripper and the second gripper, respectively, and to control the blower robot arm to perform a plurality of blowing actions onto the deformable object until an objective is satisfied.


