The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Publications Copernicus
Articles | Volume XL-2/W2
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-2/W2, 121–127, 2013
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-2/W2, 121–127, 2013

  21 Aug 2013

21 Aug 2013


W. Xu1, Q. Zhu1, Y. Zhang1, Y. Ding1, and M. Hu2 W. Xu et al.
  • 1State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, China
  • 2Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong

Keywords: Real-time GIS, Spatiotemporal Data Model, Indoor Fire Disaster

Abstract. GIS is now faced with the challenge how to represent and understand the fast-paced, constantly changing world, given increasingly real-time data including readings from large-scale distributed sensors and large quantities of simulation data generated by computation models. Traditional static GIS pays more attention to representing historic data and Temporal GIS(TGIS) only treats time as a occasional but not critical factor and can't support the explicit change representation. In this context, Real-time GIS(RGIS) is put forward and its data model becomes a key problem how to make an appropriate abstraction over the rapid changes implied in real-time data stream and establish the general interaction relationship between them. The paper proposes a spatiotemporal changeoriented three-domain model with the emphasis on the semantic interaction relationship of object, event and process. Based on this model, a semantic enrichment method for multi-scale spatiotemporal change is put forward. Finally, as a RGIS application, indoor fire disaster simulation is illustrated and proves the validity of the proposed model.