Study of Spatio-Temporal Data Modeling Based on Joint Activities of Household

摘要

There are some joint activities in families due to interdependence among individuals, such as substitution, assistance, etc. This paper starts with the spatio-temporal characteristics of joint activities and interactive relationships between members. Firstly, space-time path are extended, which are able to express the temporal change process of group interaction behavior. Secondly, based on object-oriented modeling methods, the concepts of "behavior event" and "person event" are defined and used to describe "active" objects and build semantic organization of member interaction based on spatio-temporal GIS, achieving the expression of individual activities processes and group interaction processes at the same time. Thirdly, on the basis of semantic organization relationships of member interaction, a spatio-temporal data model of family activities is built. This paper proposes a 3D visualization tool for spatio-temporal data of family joint activities, and visualization of the space and time path and joint activities of family is achieved through experimental data.