At the end of March, Hangzhou announced the overall plan for the construction of "Digital Smart Hangzhou". The plan proposes that by the end of 2025, an overall intelligent governance system led by party building will be fully formed, a global source of digital transformation will be created in an all-round way, and the province will continue to inject momentum into building a global digital transformation highland.

Counting from Hangzhou's first "urban brain" in the country in 2016, Hangzhou's smart city construction has gone through 5 years. Today, Hangzhou's "City Brain" promotes the in-depth development of smart cities. It integrates 38 application scenarios such as "pay after leaving the venue", "pay after seeing a doctor" and "one more hour of travel", which can be integrated and packaged into citizens' mobile phones for operation. Under the digital empowerment represented by blockchain technology, the construction of Hangzhou's new smart city has made remarkable achievements and progress, embarking on a new path of high-quality urban development and high-level governance.

According to the latest "China Cities Digital Governance Report (2020)", Hangzhou's digital governance index ranks first in the country and is becoming the "smartest city". Digital governance is becoming another symbol of Hangzhou.

It is generally believed that a smart city is to connect various physical devices with information and communication technology, collect and analyze data, and continuously optimize the efficiency of city operations and services. What it needs to solve is what kind of technology, which physical facilities to connect, and what services to provide.

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Smart City Development Status

The development of smart cities has gone through several stages. First, the concept of information city was proposed in the 1980s, followed by the smart city and digital city proposed in the 1990s. After the "smart city" vision was formally proposed in 2009, the concept system of smart city It has been continuously clarified, simulated and practiced, and has made great achievements driven by new technologies such as Internet infrastructure and the Internet of Things.

At present, many cities are actively deploying the construction of smart cities, showing a trend of leading cities in core cities and actively following up in small and medium-sized cities. The construction of a smart city requires the integration of data resources, breaking through the barriers of block systems and information resources at the city level, reshaping social trust, and maintaining the orderly operation of smart cities.

However, the development process is also accompanied by the emergence of new problems, mainly in the following aspects: first, the problem of urban data islands. With the generation of a large amount of data in cities, data sharing has become a difficult problem due to data segregation between regions and departments and the lack of trust mechanisms and unified standards, and the problem of data islands has become prominent. The second is the issue of smart city data security. How to protect personal privacy while facilitating urban life is a must-answer question in the construction of smart cities. At the same time, there are a large number of different types of equipment and management systems exchanging information in smart cities, which are vulnerable to network attacks, and security issues cannot be ignored. Finally, there are still shortcomings in urban supervision. Since the data chain management system for business supervision is still not perfect, and there is a lack of effective traceability means for the whole process, it makes supervision difficult.

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Blockchain helps the construction of smart city system

As the core underlying technology, the blockchain has the characteristics of decentralization, openness, autonomy, information cannot be tampered with, and anonymity. Provide safe, efficient and convenient services to support the construction of smart cities.

• One is that blockchain accelerates urban data circulation and sharing. In the information age, urban management is changing from a traditional approach to an intelligent one, and data circulation and sharing has become a necessary link for efficient urban collaboration. Using blockchain technology, it is possible to create the underlying technology, establish new data update rules, and provide support for urban data circulation and sharing. At the same time, the blockchain cannot be tampered with and has traceability characteristics, which can leave traces and trace any processed data, creating a credible data circulation and sharing chain. For example, the blockchain government data sharing platform created by Nanjing City can use more than 40 government departments including public security, industry and commerce, and human society as management nodes. Each node is based on the principle of equal rights and co-construction to form a huge government alliance chain network. . Through data uploading, digital signature and other technical means, the data of different departments can be shared and circulated, which greatly facilitates the masses to handle affairs. Wangchain Technology is also actively deploying in the field of smart city construction. Our VoneBaaS, as the underlying platform of the general blockchain, can carry out blockchain transformation of urban government affairs scenarios, and will establish an interconnected and interoperable platform for cross-level and cross-departmental data. A trusted environment greatly improves the efficiency of government services and serves the creation of smart cities.

• The second is that the blockchain improves the efficiency of urban management. Using the decentralized nodes of the blockchain to manage numerous service ports and a large amount of data in the system will reduce the cost of urban management and improve the efficiency of urban governance. For example, in the matching of urban resources, the blockchain can intelligently match various resources in the city through the collection and analysis of user terminal data, and deliver precious resources to places that can maximize their value, which greatly conforms to the vision of smart cities.

• epilogue

epilogue

In March 2020, General Secretary Xi Jinping pointed out during his investigation at the Hangzhou City Brain Operation Command Center:

Using cutting-edge technologies such as blockchain, big data, cloud computing, and artificial intelligence to promote the innovation of urban management methods, management models, and management concepts, from digitization to intelligence and then to intelligence, to make cities smarter and smarter is to promote The only way to modernize the urban governance system and governance capacity has broad prospects.

With the continuous advancement of urbanization, it is estimated that by 2025, China will have an urban population of 1 billion. Urban planning and spatial governance are facing severe challenges. At present, the construction of smart cities has become an important way to solve various urban problems. The construction of smart cities is of great significance to achieve high-quality urban development and enhance urban competitiveness.

At present, the construction of smart cities has entered a critical period. The introduction of blockchain technology will help integrate government information, eliminate information asymmetry, and promote the coordination of different departments within the government. It will build a safe environment through its mature cryptographic algorithms and greatly enhance intelligence. The security of the urban construction system realizes the intelligent transformation to the government-governed city model, and fundamentally solves many problems that arise in the construction structure of the smart city.

Under the technical background of the continuous iteration of the new generation of information technology, blockchain technology superimposed on the Internet of Things, big data and artificial intelligence technology will fully empower the comprehensive development needs of urban construction, and provide underlying technical support and efficient service guarantee for the construction of smart cities.