Research On Geological Disaster Monitoring And Early Warning System Based On GIS

The warning system of geological hazard prediction can predict the possible geological disaster site in advance,do the emergency plan and emergency rescue work well,reduce the economic loss caused by the geological disaster,and ensure the safety of life.Therefore,this paper uses GIS technology,software engineering related development concept and technology,from the needs of the system,make full use of the existing computer hardware and internal local area network,through the system design,the realization of the function of each module,Finally,a geological hazard prediction and warning system is constructed,and successfully passed the system test to meet the needs of geological hazard prediction,warning and disaster reduction business.Firstly,this paper introduces the research status of this subject at home and abroad,geographic information technology,spatial database technology,GIS-based decision support system and other related theories.Then,it is determined that the inducement of geological disaster is topography,lithology,thickness of topsoil layer,geological structure,human engineering activity and rainfall,and the weight of each factor is determined by principal component analysis.The prediction and alarm model of geological hazard is designed.Then,it introduces the overall design of the system,such as system design principles,system development process,system overall business process,system software design and the overall framework of the system.The main function modules of the system are designed.Block,including data acquisition module,information query module,early warning analysis module,early warning module.This paper introduces the system database structure,database construction and integration,conceptual structure design and main table structure design.And the security architecture design of the system,including security architecture,network security design,access control and terminal sensitive information control.Then,the design and implementation of data acquisition module,information query module,early warning analysis module and early warning release module are introduced in detail.Finally,the system is tested.The test includes a functional test and a performance test,and the test shows that the system Run to achieve the desired target.The test results show that the system achieves the pre-set goal of system development,and the related functions of the system are concentrated in the system,and the interface of the system is friendly and easy to operate.It is helpful for the prediction and monitoring of geological disasters,which can predict the possible geological disaster points in advance,do the emergency plan and emergency rescue work well,reduce the economic losses caused by geological disasters,and ensure the safety of life.