Methodology and implementation of the monitoring and supervision system for land resources based on the integration of 3S and mobile Internet technology

摘要

Monitoring and supervision of land resources requires several spatial databases related to land use, land planning, mineral resources, etc. It also needs support via information technologies such as GIS, GNSS, RS (3S), wireless communication, and internet-of-things. At present, in view of the requirements related to the complexity and comprehensiveness of the monitoring and supervision of land resources, some application systems have been developed in China and some progress has been made. However, most of the existing systems have several weaknesses; for example, field inspection and office verification have to be carried out separately. Real-time spatial data analysis and monitoring confirmation cannot be performed, and the process is time consuming. A dynamic and integrated monitoring process has not yet been realized. In this study, a new type of land resource monitoring and supervision system (LRMSS) with 3S and mobile internet is designed and developed. The LRMSS integrates real-time data communication and the monitoring and supervision of land resources with spatial analysis. It provides a multilevel, multifaceted visual display of the monitoring processes and graphics and other information on the mobile terminal and monitoring platform. The standardized, efficient, and systematic LRMSS has been implemented and applied, which can improve the processing speed and work efficiency of the monitoring and supervision of land resources. In this study, based on location services, an unattended geospatial analysis and service model is developed by integrating 3S technologies using multisource data; thereafter, the corresponding system software, which provides the functions of integrating the data of the core database of land resources and monitoring of land resources, is developed. Meanwhile, based on the accessing mechanism of geospatial information service with the asynchronous communication protocol, the study uses the VPDN network as the main means and the BDS short message as an emergency supplement. Data security and the transmission mechanism for reliable transmission of geospatial data are both realized. The paper states the interface requirements and data standard for reporting and receiving data between databases. The results of this study can provide services for supervising and decision analysis for law enforcement supervision. It has been widely used in the department of land resource management.