Object-oriented full-time domain moving object data model
Zhu Li · Journal of Computer Applications · 2013
An object-oriented moving object data model supporting full-time data storage and query was put forward,which added dynamic attributes to the object-oriented model.The influence of Global Positioning System(GPS) positioning accuracy and direction on the moving object location updating was discussed,and a new location updating strategy of dynamic threshold based on the positioning accuracy,speed and direction was constructed.Therefore,the storage and query of full time domain of the mobile object were solved.Finally,an experiment about this new moving object data model was carried out.And the result show that the dynamic threshold location updating strategy of the model can effectively reduce the frequency of location update,save the data transmission flow,and reduce the amount of data storage without affecting the moving objects trajectory precision.