Bulletin of Surveying and Mapping ›› 2023, Vol. 0 ›› Issue (3): 55-60.doi: 10.13474/j.cnki.11-2246.2023.0072

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A multi-granularity spatio-temporal object model of site pollution environment

JIANG Huizhong1,2, ZHANG Jianqin1,2, JIA Hongxia3, LI Xinzhi1,2, LI Xingchen1,2, YUAN Quan4   

  1. 1. School of Surveying and Urban Spatial Information, Beijing University of Civil Engineering and Architecture, Beijing 102616, China;
    2. Key Laboratory of Urban Spatial Information, Nature Resources Ministry, Beijing 102616, China;
    3. Information Center of Ministry of Ecology and Environment, Beijing 100029, China;
    4. Shenzhen Saiying Dimai Technology Co., Ltd., Shenzhen 518000, China
  • Received:2022-05-19 Published:2023-04-04

Abstract: At present, the research on polluted sites mainly focuses on the pollution situation and its development status. There is a lack of a relatively complete expression for the physical characteristics of polluted sites, and it is difficult to visualize the multi-dimensional information of polluted sites. Relying on the construction idea of multi-granularity spatio-temporal object model, this paper studies and constructs the spatio-temporal object model of multi-granularity site pollution environment, abstracts the pollution site information entity into a data model, and then describes and visualizes the relevant characteristics of its spatio-temporal entity to realize the pollution site. The integration and fusion of the full-spatial information big data based on the implementation of verification is carried out by taking a steel plant in Chongqing as an example. The experimental results show that the multi-granularity spatio-temporal object modeling of the site pollution environment can efficiently express the multi-dimensional characteristics of the polluted site, display the information of the polluted site more comprehensively, and provide technical support for the precise management and control of the polluted site, pollution assessment and restoration.

Key words: contaminated site information, multi-granularity spatio-temporal objects, full space information, site pollution environment, object model building

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