Robot Motion Support Availability Index Battery Management
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Solution Overview
Problem
Existing standing-up motion support robots do not provide adequate information on battery charge levels, making it difficult for care receivers to plan battery recharging, as they lack a system to display the number of times or duration the robot can perform motions based on battery level, leading to potential battery depletion during use.
Innovation Solution
A robot system that includes a motion mechanism for standing-up and sitting-down motions, a control unit to determine a multiple-motion support operation availability index based on battery charge levels, and a presentation unit to display this index, allowing care receivers to plan recharging accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the robot operates without providing battery charge information, then the device complexity is reduced, but the reliability of operation planning deteriorates
Solution Approach 1:
The control unit determines a multiple-motion support operation availability index based on the power source level and presents this information to the user. This feedback mechanism allows users to plan operations according to remaining battery charge, improving reliability without significantly increasing device complexity.
2Reliability
If the robot provides detailed battery charge information for multiple motions, then the reliability of operation planning is improved, but the device complexity increases
Solution Approach 1:
The availability index is segmented by motion types (first motion, second motion, etc.), allowing users to understand remaining charge for specific operations. This segmentation provides detailed information without requiring complex overall system redesign.
Solution Approach 2:
The control unit changes the parameter display from raw power source levels to meaningful availability indices that indicate how many times each motion type can be performed. This transformation makes the information more useful without adding physical complexity.
3Reliability
If the robot monitors power source levels continuously, then the reliability of preventing battery depletion is improved, but the use of energy increases
Solution Approach 1:
The control unit determines the availability index in advance based on current power source levels and presents this information to users before operations begin. This preliminary assessment allows users to plan accordingly without requiring continuous monitoring during operation, reducing energy consumption.
Data Source
AI summary
A robot includes a motion mechanism capable of operating in accordance with each of a first motion pattern for supporting a user with a first motion representing a standing-up motion and a second motion pattern for supporting a user with a second motion representing a sitting-down motion, a battery that supplies electric energy to the motion mechanism, a control unit that determines a multiple-motion availability index indicating the availability of an operation in accordance with a multiple-motion pattern including the first and second motion patterns on the basis of the battery level and the amounts of energy charge in the battery required for the operations performed by the motion mechanism in accordance with the first and second motion patterns if the control unit detects that the battery level is a first threshold value or lower, and a presentation unit that presents the multiple-motion availability index determined by the control unit.