Development Of A Real-time Monitoring Information System For Landslide Disasters

China has a vast territory,complex and diverse geological conditions,and various natural geological disasters frequently occur.In order to reduce the adverse effects of various geological disasters on China’s economic and social development,the Chinese government attaches great importance to the monitoring of various geological disasters and research on disaster prevention and mitigation.Aiming at landslide geological disasters,various sensors are deployed in disaster-prone areas for data collection,combined with GIS spatial analysis technology,to store,manage,count and analyze real-time monitoring data,and explore the timeliness and spatial characteristics of real-time monitoring data.Visually display the monitoring data and its contained information,and establish a real-time monitoring information system for landslide disasters.This paper studies the existing landslide disaster monitoring system,compares the existing system architecture,system function and system usage,and summarizes and summarizes the shortcomings and shortcomings of the existing system.To make technical improvements and upgrade system functions in response to some problems,the functional requirements of the system are listed in detail in six aspects,including emergency information notification,real-time data display,historical change display,comprehensive data management,information statistics and reporting,and system management.Detailed analysis of non-functional requirements such as system safety and operating performance,system maintainability and scalability.Based on the analysis of the research and development needs of the real-time monitoring information system for landslide disasters,the overall system architecture is designed.A Web GIS architecture information system is built using the B/S model,and the MVC programming model is used for specific development and implementation.The database uses SQL Server 2014 and Arc SDE to manage the attribute data and spatial data of the landslide disaster monitoring system,combined with the online map services provided by Baidu Maps and Tianditu to provide support for the system.At the same time,by building the system database and system server in the cloud,users can use various terminal devices to access the system and perform interactive operations.Mainly use the ECharts technology under the Vue framework to develop and implement the core data visualization functions of the system.Combined with the Internet front-end and back-end development technology,the two core functions of data map and data analysis are initially realized,including emergency information notification,real-time data and history data dynamic trend display,comprehensive management data,superposition of spatial environment elements,visually display of monitoring data,statistical analysis of various data attributes and other sub-functions for detailed display.Providing data support and information services for landslide disaster monitoring departments at all levels.