Smart city, the current global smart city from the concept and modeling stage to the planning and construction stage, is still in the exploration period. Blockchain is also a windfall technology in the exploratory stage, and many people are flocking to it.

Smart city based on blockchain technology has gradually emerged, Huixin cloud platform to meet user needs, has been stationed in several smart city aspects of the field of product managers, in order to accelerate the layout in the field of smart city, in the financial system, auditing system, supply chain, energy and power, smart park management system, smart transportation applications and other areas have made great progress.

The new smart city is mainly built around big data and blockchain technology as the core. Through the combination of "one center, four platforms, multiple applications, and a unified chain", it constitutes a multi-dimensional smart city solution.

The so-called "one center" is a big data center based on the dimensions of the city. The "four platforms" are the smart government comprehensive information service platform, the smart city management comprehensive information service platform, the smart people's livelihood comprehensive information service platform and the smart economy comprehensive information service platform. "Multi-application" includes all kinds of intelligent applications. Finally, the "unified chain" is a trusted smart city information ecosystem based on blockchain.

Based on the smart city overall solution is presented, according to the four dimensions to analyze are: perception layer, network layer, platform layer and application layer,

Perception layer: contains by a variety of sensors, RFID tags, various types of hardware gateway devices and Internet equipment title network. These perception layer hardware mainly to support our various networks.

Network layer: the layer is from the perception layer of various hardware devices, components of a support communication and data carrier network. Generally speaking, we contain three categories that is the Internet of things, communication network and the Internet.

Platform layer: the platform layer is mainly through the carrier network on the components of the various information platforms. These information platforms provide basic information services for our subsequent components of various applications. Common such as data center platform, credit center platform, IT center platform and so on.

Application layer: the application layer is mainly in the process of smart city components, involved in all aspects of special services, such as smart government, smart transportation, smart social security, smart finance, smart security, smart Internet of Things, smart assets, smart supply chain, and smart carbon emissions and so on.

What makes smart cities on blockchain different?

Over the years, governments and industry giants around the world have been pushing for smart cities. What is different about the Innovation Gathering City, which is built on the blockchain?

Unlike previous smart city projects, Innovation City does not add a "smart application layer" to the existing physical and IT facilities of the city, but rather deploys an infrastructure that supports IoT, blockchain, and other technologies from the ground up, starting from the planning and construction stages. Distributed thinking and open collaboration are the two main features of the Innovation Fusion City.

Distributed building approach

Adopting a distributed building approach to make cities. The city is a large complex system, densely populated, business ecology, scene, enterprise aggregation, "blockchain smart city do not have to have a complete top-level design, do not have to think well about what each part must do, just will be pre-considered in advance that each part will be a part of the blockchain network, specific in the design of the integration of blockchain technology, integration of implicit openness to allow the data flow between different projects."

One of the big roles of blockchain is in breaking down data silos. And past smart city and smart city management projects still suffer from data silos. It may not be able to dock the smart transportation and smart energy systems done by different companies, but the interconnection of different systems can be realized on the blockchain, and new applications can be built on top of the level of connectivity, which will be continuously improved in practice. Distributed energy storage technology is the future demand