A transfer-learning based energy consumption modeling method for industrial robots

被引:10
|
作者
Yan, Jihong [1 ]
Zhang, Mingyang [1 ]
机构
[1] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China
基金
国家重点研发计划;
关键词
Industrial Robots; Energy consumption modeling; Operating parameters; Transfer learning; Multi-layer perception; OPTIMIZATION;
D O I
10.1016/j.jclepro.2021.129299
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Industrial robots have been widely utilized in factories to replace or help employees performing tasks such as handling, welding, and assembly. With the increasing breadth of installation and deployment of industrial robots, it is critical to predict and optimize their energy consumption in order to assure their environmentally friendly characteristics. While the data-driven modeling method based on multi-layer perception has been demonstrated to be a viable way for revealing quantitative relationships between operating parameters and energy consumption for industrial robots regardless of physical process or case-specific information, there are still some limitations in terms of prediction range, modeling efficiency, and sample size requirement. To accelerate model rebuilding and improve model accuracy without collecting a large number of samples simultaneously, this paper proposes a transfer-learning-based model creation method for energy consumption of industrial robots, where the associated operating parameters are analyzed, and structure adjustment strategies for multi-layer perception are planned for various industrial robot systems, then, schemes for the reuse of parameters in well-trained networks on source domain and the fine-tunning of multi-layer perception model are formulated to efficiently build the accurate energy consumption model on target domains. Experiments are conducted on two distinct robot systems, the Epson C4 and the Siasun SR10C, with nonidentical operating parameter structures and sample sizes. The results demonstrate that transfer learning models with fine-tuning strategy outperform previous datadriven modeling methods in terms of model accuracy and modeling efficiency in both of these situations.
引用
收藏
页数:12
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