Research on event-based update of spatial-temporal information of multisource sensor

Research on data update mechanism based on geographic events provides an important foundation for ensuring data accuracy and freshness, improving data quality, and supporting the running of city. This paper studies spatial-temporal information update method, which is based on geographic events, and it studies the characteristics of different types of events and establishes the rules of update process of changes and unexpected events and the linkage update rule of the sensor which has linkage effects. This paper describes the workflow of the update system, and verifies the feasibility and effectiveness of the update system using real-time update of temperature changes.