关键词: 智能工厂, 工业物联网, 云&mdash, 边协同, 人&mdash, 机&mdash, 物共融, 自治生产管控

Abstract: Focusing on the requirements of cloud-level mining and edge-level computing of real-time manufacturing big data generated from Industrial Internet of Things (IIoT) devices in smart factories,an IIoT architecture for smart factories based on cloud-edge interplay was proposed,together with the edge nodes configuration method and the cloud application services configuration method.Under this architecture,time-insensitive and time-sensitive manufacturing data computing tasks were executed by cloud server and IoT edge nodes respectively.Considering human workers,machine tools,physical objects,and other manufacturing resources in a smart factory were endowed with different levels of intelligence,the key technologies to realize the human-machine-product-symbiosis-based autonomous production control were researched from the perspectives of production planning,execution,monitoring,and optimization.From a case study,it was concluded that cloud-edge interplay-based IIoT architecture and autonomous production control technologies could not only make manufacturing data processing and analysis from both cloud-level and edge-level,but also achieve the real-time production status monitoring and autonomous production control of smart factories,which provided a basis for realizing smart and autonomous production in factories.

Key words: smart factory, industrial Internet of things, cloud-edge interplay, human-machine-product symbiosis, autonomous production control