Utilization of a reinforcement learning algorithm for the accurate alignment of a robotic arm in a complete soft fabric shoe tongues automation process
| Autor: | Chun-Sheng Wang, Tien-Jan Chang, Yu-Ting Tsai, S. J. Pawar, Pei-Hsing Huang, Chien-Hui Lee, Tao-Ying Liu, Jin-H. Huang |
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| Rok vydání: | 2020 |
| Předmět: |
Production line
0209 industrial biotechnology Network architecture Artificial neural network Computer science business.industry media_common.quotation_subject Process (computing) Control engineering 02 engineering and technology Automation Industrial and Manufacturing Engineering 020901 industrial engineering & automation Hardware and Architecture Control and Systems Engineering 0202 electrical engineering electronic engineering information engineering Reinforcement learning 020201 artificial intelligence & image processing Quality (business) business Robotic arm Software media_common |
| Zdroj: | Journal of Manufacturing Systems. 56:501-513 |
| ISSN: | 0278-6125 |
| DOI: | 10.1016/j.jmsy.2020.07.001 |
| Popis: | As usher in Industry 4.0, there has been much interest in the development and research that combine artificial intelligence with automation. The control and operation of equipment in a traditional automated shoemaking production line require a preliminary subjective judgment of relevant manufacturing processes, to determine the exact procedure and corresponding control settings. However, with the manual control setting, it is difficult to achieve an accurate quality assessment of an automated process characterized by high uncertainty and intricacy. It is challenging to replace handicrafts and the versatility of manual product customization with automation techniques. Hence, the current study has developed an automatic production line with a cyber-physical system artificial intelligence (CPS-AI) architecture for the complete manufacturing of soft fabric shoe tongues. The Deep-Q reinforcement learning (RL) method is proposed as a means of achieving better control over the manufacturing process, while the convolutional and long short-term memory artificial neural network (CNN + LSTM) is developed to enhance action speed. This technology allows a robotic arm to learn the specific image feature points of a shoe tongue through repeated training to improve its manufacturing accuracy. For validation, different parameters of the network architecture are tested, and the test convergence accuracy was found to be as high as 95.9 %. During its actual implementation, the production line completed 509 finished products, of which 349 products were acceptable due to the anticipated measurement error. This showed that the production line system was capable of achieving optimum product accuracy and quality with respect to the performance of repeated computations, parameter updates, and action evaluations. |
| Databáze: | OpenAIRE |
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