Robot Control Parameter Switching for Conveyance and Assembly

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Solution Overview

Problem

Industrial robots face challenges in setting optimal control parameters for varying work tasks, as general-purpose settings compromise accuracy and efficiency, and existing solutions struggle to adapt control parameters like speed and damping to specific operator demands.

Innovation Solution

A robot control device and method that utilize a table-based approach to determine control parameters, specifying correspondence relations between work contents and parameter levels, such as speed, command followability, and operation end determination standards, tailored for specific tasks like conveyance and assembly work.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If general-purpose control parameters are set for all work regions, then the robot operation can be performed in the same manner for all work regions, but it is difficult to locally improve accuracy in specific work regions

Engineering Contradiction:

Improverobot operation consistency across work regionsVSAvoidrobot operation accuracy in specific work region

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies local quality by enabling different control parameters to be set for different work regions. The control device allows operators to specify dedicated parameters for specific work regions while maintaining general-purpose parameters for other regions, thus improving local accuracy without sacrificing overall adaptability.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent segments the work space into multiple work regions, each capable of having its own control parameters. This segmentation allows the robot system to treat different regions with different parameter sets, resolving the contradiction between uniform operation and localized precision.

Inventive Principle:

Principle #1Segmentation

2Manufacturing precision

If control parameters are set to match specific operator demands for different work types, then work accuracy and efficiency are improved, but it becomes difficult to cope with varying operator requirements

Engineering Contradiction:

Improvework accuracyVSAvoidability to cope with varying operator demands

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic adaptability by allowing control parameters to be changed based on operator input and work type. The system dynamically adjusts parameters such as speed, damping, and operation end determination standards according to the specific work content and operator preferences, rather than being fixed.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent enables parameter changes by providing a control device that allows operators to modify control parameters for different work types. The system stores and switches between different parameter sets corresponding to various work contents, facilitating adaptation to different operator demands while maintaining high accuracy.

Inventive Principle:

Principle #35Parameter changes

3Manufacturing precision

If dedicated parameters are set for specific work regions, then local accuracy is improved, but the complexity of parameter management increases

Engineering Contradiction:

Improvelocal robot operation accuracyVSAvoidparameter setting complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies self-service by enabling operators to independently set and adjust control parameters for different work regions and work types. The control device provides an intuitive interface that allows operators to configure parameters without requiring expert knowledge, thus managing complexity while maintaining local accuracy.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20230311315A1Robot control device, robot control method, and non-transitory computer-readable storage medium storing robot control program

Publication Date: 2023.10.05 SEIKO EPSON CORP

AI summary

A robot control device determines control parameters based on a table in which a correspondence relation between work contents of work to be performed by a robot and levels of the control parameters of the robot is specified. The table includes, as the work contents, conveyance work for conveying a target object and assembly work for assembling the target object and includes, as the control parameters, for each of the conveyance work and the assembly work, speed of the robot, command followability, and an operation end determination standard. A level of the speed of the conveyance work is higher than that of the assembly work. A level of the command followability of the conveyance work is lower than that of the assembly work. A level of the operation end determination standard of the conveyance work is lower than that of the assembly work.