Robot Motion Support Position Feedback
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Solution Overview
Problem
Existing standing-up motion support robots do not provide adequate information on the position of the care receiver during the motion support, particularly in the half-crouching posture, which varies among individuals, leading to inappropriate stop positions for some users.
Innovation Solution
A robot with a motion mechanism that operates in accordance with a first motion pattern for supporting a user from a sitting to a standing posture, featuring a control unit that acquires and detects predetermined position information for a half-crouching posture and presents a signal when the current position is within a defined range, allowing for appropriate positioning without user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the robot uses a fixed motion pattern for standing-up support, then the motion support function is provided, but the position information for individual variations (half-crouching posture) is not provided
Solution Approach 1:
The robot detects the user's actual position during motion and provides feedback through presentation of position information. The control unit monitors the motion mechanism's position and presents information when the user is in the half-crouching posture range, enabling adaptive support based on real-time position feedback.
Solution Approach 2:
The robot preliminarily identifies the half-crouching posture position range before providing motion support. By acquiring position information in advance and preparing to present it when the user enters this range, the system ensures appropriate position information is available when needed during the standing-up motion.
2Adaptability or versatility
If the robot provides detailed position information during motion support, then individual variations are accommodated, but the device complexity increases
Solution Approach 1:
The robot applies local quality by providing position information specifically when the user is in the half-crouching posture range, rather than continuously throughout the entire motion. This targeted approach accommodates individual variations where needed while avoiding unnecessary complexity in other phases of motion support.
Solution Approach 2:
The system changes the parameter of information presentation based on the motion phase. Position information is presented only when the motion mechanism's position falls within the predetermined half-crouching range, rather than maintaining constant information output. This conditional parameter change reduces overall system complexity while maintaining adaptability.
Data Source
AI summary
A robot includes an arm mechanism that operates in accordance with a first motion pattern for supporting a user with a standing-up motion which starts in a sitting posture and finishes in a standing posture, a control unit that (i) acquires first information used to identify a predetermined position of the arm mechanism corresponding to a half-crouching posture of the user during a motion in accordance with the first motion pattern and (ii) detects whether the current position of the arm mechanism operating in accordance with the first motion pattern is included in a first range including the predetermined position identified by the first information, and a presentation unit that presents a first signal if the control unit detects that the position of the arm mechanism is included in the first range.