Background
Smart cities are ultimately geared to urban managers, citizens and enterprises, involving people's livelihood, governance, economy and so on. They need to collect and manage various types of terminals based on various communication and Internet networks, as well as the data information generated by these terminals, and carry out multi-dimensional and long-term analysis and application. There is an urgent need for a centralized access platform and a unified data platform to meet the centralized acquisition, comprehensive analysis of urban big data and cross-domain intelligence.