As an indispensable part of municipal infrastructure, street lights can be seen everywhere on both sides of the road. The planning of the urban road network determines the wide distribution and comprehensive coverage of street lights in the city. Due to these characteristics, street lights have become the preferred carrier for smart devices in cities. The construction of a smart city combines smart facilities with street lights, and carries out various innovations on street lights; uses the street light pipeline network to build the Internet of Things in a smart city, thereby building a smart city and demonstrating the level of urban management. Therefore, this paper regards street lights as the carrier of urban smart infrastructure, studies its role in the construction of smart cities, and designs and analyzes smart city systems, so as to design for the construction of smart cities and the use of smart infrastructure for human society. bring happiness.

1. Intelligent design of urban system architecture

        The core of a smart city is an intelligent way to influence or change the internal connection between people, people and things, and things in the city through modern information technology, so that the city has a clear target direction and improves the operation efficiency of the city. , to achieve the perfect combination of the city information infrastructure and the city's highly integrated infrastructure, so that the city government, enterprises and citizens can make more informed decisions. Generally, the system architecture of a smart city can be divided into four levels.

1.1 Perception layer

       The perception layer mainly uses the ability of the information network to quickly perceive and monitor, and supervises every corner of the city according to the network covering the city, so that the obtained information is more transparent and complete. Smart street lights collect information based on wired networks, wireless networks, video broadcasting, charging piles and other equipment, so as to quickly collect useful information for the city, and then integrate various resources to achieve "sharing, intensive, and Overall planning”, greatly reducing the cost of urban construction, improving the efficiency of urban operation and maintenance, and bringing multiple benefits to the construction of smart cities. The comprehensive coverage and intensive sharing of the city perception network built by smart street lamps can provide various types of integrated perception information such as video, data, location, and environment for various upper-level intelligent application systems.

1.2 Network layer

       The network layer is composed of the Internet of Things, the Internet, and the communication network in the whole city. Use the pipes of the smart light poles and the main light poles to build a high-speed ubiquitous communication network, including: optical fiber networks, 4G/5G micro base stations, WiFi devices and other wired and wireless networks. Provide a good information application environment for smart cities, so that all kinds of data, voice, video, images, etc. can be used to achieve effective cooperation inside and outside the city without restriction. Combining modern communication technology, computer technology and other high and new technologies, it fully reflects the optical fiber, wireless, comprehensive and intelligent trend of informatization development. An advanced information and communication basic network and business network will be built in the smart city to meet the various information and communication business needs of the city's management applications.

1.3 Platform layer

       The platform layer is composed of various application supporting public platforms and data centers. The main collection of data is from the front-end sensing devices of smart street lamps to achieve effective and scientific processing of information. Based on the smart city cloud computing data center, the data exchange platform is the core. Build the city's unified public application support platform, information resource management system, data exchange platform, key information resource database and information resource catalog database, promote the intensive construction of urban informatization, and enable various infrastructures in the city to transform and utilize IT technology , so that the city can share information, and then rationally use the integration layer to integrate the information, which can not only ensure the efficiency of collecting information, but also ensure the security of information.

1.4 Application layer

       The application layer is the urban management of the smart government, the management application of the smart home life and every little thing around the people. This level is oriented to scientific research institutions, government management departments, and public users. Scientific research institutions collect and study data, predict the results, and provide data support for the government's decision-making. The government management department strengthens the management of municipal infrastructure, traffic safety management and policy formulation, so that the decision-making can be developed steadily, and in the event of problems, timely monitoring and management can be carried out. Under special circumstances, government management departments can send emergency broadcasts or emergency notifications through smart street lights to evacuate dangerous accidents in a timely manner and effectively reduce the harm caused by accidents. Vigorously targeting public users, it is released through the front-end of smart street lights to provide users with more service information, such as improved weather reports, real-time reports of road conditions, and measures such as supporting electric vehicle charging.

       Relying on the data integration, sharing and business collaboration capabilities of the application support public platform, make overall plans to promote the construction of large-scale smart application projects, and select and arrange a group of key smart demonstration projects with obvious social and people's livelihood effects, conducive to the development of low-carbon economy, and relatively mature conditions. The government's smart application construction and procurement start the market, encourage enterprises to innovate service methods and products, provide a variety of smart people's livelihood services, and gradually build an intelligent application system. Upgrade to city level.

2. Conclusion

       Street lights are indispensable equipment for urban construction, and they are distributed in various parts of the city. With the development of society, it has gradually become a development trend for street lights to carry different smart devices. This paper proposes to build a smart city system architecture design based on the construction of smart street lights, making the city more intelligent and making city management simpler and more efficient.