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Positioning the Materials in Construction Project

In order to improve the monitoring and controlling performances in construction projects,especially in multi-story projects,this paper researched the approaches to track the materials and components on construction project.A locating model in 3 dimensional space is introduced.The mentioned locating algorithms are compared, shortages and advantages of each are given. The purpose is to find an optimal solution to manage the location information in construction project site with lower costs, higher locating accuracy and ideal reliability .