Smart city network architecture based on blockchain and software-defined network

The invention discloses a smart city network architecture based on a blockchain technology and a software-defined network, which comprises a data encryption dynamic access technology, a data compatibility acquisition technology, a data processing management technology and a data application access technology, and uses the software-defined network technology based on the blockchain technology to carry out backbone network top-layer architecture networking design. The data compatibility acquisition technology comprises a data compatibility standardization conversion interface and basic applications and basic data sources based on all branch fields of the smart city technology. The data processing management technology comprises database generation after source data rough machining, database arrangement and classification, database standardization processing technology and database authority management. The data application access technology comprises privileged user access registration and permission approval s