Invention Application
US20160171884A1 Detecting Road Condition Changes from Probe Data 有权
从探测数据中检测路况变化

  • Patent Title: Detecting Road Condition Changes from Probe Data
  • Patent Title (中): 从探测数据中检测路况变化
  • Application No.: US14567106
    Application Date: 2014-12-11
  • Publication No.: US20160171884A1
    Publication Date: 2016-06-16
  • Inventor: Xin ChenVladimir Zhukov
  • Applicant: HERE Global B.V.
  • Main IPC: G08G1/01
  • IPC: G08G1/01
Detecting Road Condition Changes from Probe Data
Abstract:
Systems, methods, and apparatuses are disclosed for identifying anomalies or changes in road conditions on a roadway location. An initial low rank data matrix of initial vehicle probe data at a plurality of different times for a roadway location is provided, where the initial low rank data matrix represents a baseline of road conditions for the roadway location. A plurality of additional vehicle probe data from at least one vehicle at the roadway location is received. The additional vehicle probe data is added to the initial vehicle probe data of the initial low rank data matrix. The updated data matrix with the compiled probe data is decomposed into a low rank data matrix and a sparse data matrix. A change at the roadway location is identified based on the probe data in the sparse data matrix.
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