On the premise of meeting the requirements of departments and units on data sharing security management and control, smart city aims to realize the flow and integration of data among vertical and isolated smart applications. Each user can perform local fusion calculation and get results or feedback directly.
1. Cloud computing architecture
Cloud computing is a mode of using IT resources, not a specific computer technology. The performance of cloud computing is to provide IT services, which is essentially the cross and comprehensive application of various computer technologies.
Cloud computing is a network-based service supply model that supports the flow of heterogeneous facilities and resources. It provides customers with autonomous services. As a new IT service resource, cloud computing can be divided into three types: infrastructure as service (IaaS), platform as service (PaaS) and software as service (SaaS).
Smart city is a complex system composed of multi-application and multi-industry. There is a need for information sharing and interaction between multiple application systems. So many complex systems need to be processed by many powerful information processing centers. In order to fundamentally support the safe operation of the huge system, it is necessary to consider the network architecture based on cloud computing and build the cloud computing data center of smart city.
2. Internet of things (IoT)
Internet of things (IoT) is a kind of network that connects any object with the Internet for information exchange and communication through RFID, infrared sensor, global positioning system (GPS), laser scanner, gas sensor and other information sensing equipment according to the agreed protocols, so as to realize intelligent identification, positioning, tracking, monitoring and management. There are three key technologies in the Internet of things (IoT): sensor technology, RFID technology, and embedded system technology.
The Internet of things (IoT) realizes the interconnection, comprehensive perception and information utilization capabilities of things and things, things and people, people and people in the smart city, so that people can manage production and life in a more precise and dynamic way, and provide resource utilization rate and productivity level.
(To be continued)
(Translated from academic forum of smart city)