Acta Geodaetica et Cartographica Sinica ›› 2023, Vol. 52 ›› Issue (1): 1-7.doi: 10.11947/j.AGCS.2023.20220405

• Review •     Next Articles

Ubiquitous perception and space mapping

YANG Yuanxi1,2, WANG Jianrong1,2   

  1. 1. State Key Laboratory of Geo-Information Engineering, Xi'an 710054, China;
    2. Xi'an Research Institute of Surveying and Mapping, Xi'an 710054, China
  • Received:2022-06-26 Revised:2022-08-31 Published:2023-02-09
  • Supported by:
    The National Natural Science Foundation of China (No.41931076);The National Natural Science Foundation for Young Scholars of China (No.41904042)

Abstract: Ubiquitous sensing is the foundation of smart earth and smart city construction. The ubiquitous sensing is divided into active sensing and passive sensing in this paper, and the characteristics of the two kinds of sensing information are analyzed. The former has space-time datum information which is usually regular, accurate and reliable, while the latter usually does not have the support of time and space datum, and the data is scattered, disorderly and inaccurate. The importance of spatio-temporal datum of ubiquitous sensing is discussed in order to discover the valuable knowledge, and the relationships among the ubiquitous sensing and the satellite photogrammetry as well as geographic information are analyzed, and the key technologies of the integration of the ubiquitous sensing information and satellite photogrammetry as well as the geographic information are sorted out.

Key words: ubiquitous sensing, spatio-temporal datum, satellite photogrammetry, data fusion, knowledge mining

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