Innovative Exploration of Standard Digital Transformation in the Power Field: A New Mode of Blockchain Cooperation on and off the Chain

Aiming at the problem of trust barriers for power users to traditional metering and payment services, an on-chain and off-chain collaborative model of power information collection integrating “standardization theory and blockchain technology” was proposed. In this paper, the standardization theory of “unification, combination and modularization” and blockchain technology are applied in the new power system electricity information collection scenarios, which can realize the security protection of power metering data source and transmission process, thus increasing the credibility of metering and payment data. Firstly, an on-chain and off-chain collaboration model is designed, including an off-chain procurement system model based on composition, an intermediate interactive interface model based on unification, and an on-chain blockchain system model based on modularization. Secondly, the typical application analysis of off-chain link, intermediate interactive interface link and on-chain link is carried out for the problem of on-chain trusted data. Aiming at the problem of off-chain data security, the terminal integration technology and distributed fusion authentication technology are proposed. Aiming at the problem of intermediate data transmission interface, two methods, API technology and intelligent contract technology, are proposed. A distributed transaction method is proposed to solve the blockchain transaction problem. Finally, the paper summarizes and prospects the whole paper.