Research On Campus GIS Platform Based On Private Cloud

"Digital campus" is one of the important contents of information construction in colleges and universities,and its construction will need and will produce a lot of relevant data,in which spatial data occupy the main part.Space-based services are an important part of Digital Campus.According to the characteristics of the campus,this paper combines the various computing resources and data resources in colleges and universities,and makes use of the frontier technology such as cloud computing model,large data analysis platform and container technology,combined with the concept of traditional geographic information service,The campus cloud GIS platform in the key technology,build a campus cloud GIS platform.The main contents of this paper are as follows:(1)The service model of campus GIS platform is put forward,and the architecture and function of campus cloud GIS are designed.The service model is based on the core of the campus GIS platform,and provides the user with the application program interface.(2)The main technology of the GIS platform construction in the cloud environment is studied by using the map service,the data service,the geocoding service and the path service as the core of the campus GIS platform.Using the container technology and distributed database architecture,the four basic services of the campus GIS platform are containerized,and the service on demand is expanded by unified management,which provides support for the construction of the campus cloud GIS platform.The results show that the performance of containerized geographic information service and distributed spatial database architecture is much higher than that of traditional virtual machine.(3)According to the particularity of campus geographic information service,the four basic services of campus cloud GIS The key technology is studied,and an efficient coordinate transformation algorithm is proposed for the display of online electronic map.Based on Lambert projection,the method of isometric grid is proposed for the organization and analysis of spatial data.Key words dictionary geocoding service model,which makes the accuracy of geography coding significantly improved.A reverse iterative compression algorithm based on road network key is proposed for road network data compression.The compression algorithm is more efficient than traditional point compression algorithm(4)the use of open source program development and implementation of the campus cloud GIS platform based on the basic geographic information services and portal pages,providing online application services.Based on the needs and characteristics of campus geographic information service,this paper designs and draws on the architecture of commercial GIS platform,designs and realizes the campus cloud GIS platform based on campus private cloud environment.The platform can provide the acquisition of campus spatial data,Hosting,analyzing,visualizing and sharing one-stop geographic information services,providing fast and fast online services for non-professional users,providing deep spatial data mining and flexible application programming interfaces for specialized users.The construction method of campus cloud GIS platform developed in this paper has certain innovation,which can provide reference for the construction of campus GIS platform.