Manufacturing system under I4.0 workshop based on blockchain: Research on architecture, operation mechanism and key technologies

Abstract

With the further intelligent upgrading of industry 4.0, the intelligent manufacturing ecosystem based on CPS is realized in the form of Intelligent unit, Intelligent system and System of system. Under the open workshop architecture, intelligent workshop, as an important part of intelligent system, has acute problems such as safe sharing of manufacturing data and opaque monitoring of manufacturing process. This paper proposes the architecture of I4.0 workshop reference manufacturing system based on blockchain. Combined with I4.0 component and blockchain technology, this paper focuses on the mechanism and key implementation technologies of workshop manufacturing chain from three aspects: standardized information modeling, distributed control and trusted autonomous execution. By studying the autonomous trusted trigger mechanism of smart contract and the distributed storage method of manufacturing data in workshop manufacturing system, integrating workshop service system, a system operation mechanism of manufacturing data security and manufacturing process trusted trigger is established. In addition, based on the standardized modeling method of I4.0 components, the Asset Administration Shell-Blockchain process data verification model is designed, and the standardized blockchain verification model is established from the equipment layer to support the system architecture. Finally, the implementation of the prototype verification system is analyzed by selecting representative verification sources.