Design and implementation of geospatial sensor web node management prototype system

How to manage the heterogeneous nodes within a sensor web is the key to successful management of a sensor web. Currently, there are masses of problems for node management in other fields, including that they are applicable for mere networks of small scales and can only applied to homogeneous networks, resulting in that they cannot meet the needs of the management of heterogeneous nodes in a sensor web. What´s worse, existing node management systems for a sensor web are extremely professional, with low utility, not easy to use and with a lack of effective validation of model files. To solve these problems, this paper presents the design and implementation of a sensor web node management system (SWNMS) with functions of rapid modeling, information query and edition and visualization of sensor web nodes based on the sensor web node meta-model, referring to the specification of Open Geospatial Consortium Sensor Modeling Language (OGC SesensorML). The extraction of flooding area of Poyang Lake in 2010 is presented as a SWNMS scenario.