Research On Selection And Recommendation Model Of Augmented Reality Technology For Building Projects

The development of science and technology as well as the transformation trend of China’s construction industry to industrialization,informatization and intellectualization have promoted the research and application of emerging technologies in the construction industry.Among them,Augmented Reality(AR),as a new way of information visualization,has received widely attention.AR can show the virtual information and the real environment to the project participants in the same time and in the same display interface,which can significantly help the project participants to obtain project information and communicate effectively.The application of AR needs to build the AR system,which is composed of key technologies such as obtaining scene information,tracking & registration,virtual reality fusion,display device and human-computer interaction.Different technology combinations are suitable for different scenes.However,compared with manufacturing,medical and other industries,the application of AR in construction industry is relatively slow,so there are still some difficulties for building project practitioners in choosing the appropriate key technology combination to build the AR system.In order to alleviate project participants’ selection difficulties of key technology combination in building the AR system,this study proposes AR technology selection and recommendation model based on decision tree,and develops AR technology selection and recommendation platform by using QT creator on the basis of model output,so as to provide selection suggestions for project participants.Furthermore,this research analyses the BIM+AR system,which adds the functions of BIM for project information transmission,sharing and building virtual model on the basis of AR system.The BIM+AR system integrate the data information of the whole life cycle of the project through BIM and visualize the information through AR,which will improve the information management level of building projects.Finally,the AR technology selection and recommendation platform is applied in the Yueliangwan Urban Balcony Project.Based on the recommendation results of the platform,the BIM+AR system is developed and the application effect of the system is analyzed.The fact that the system works well proves the rationality of the recommended results.