In recent years, natural disasters increase gradually and terrorist activities occur frequently. Social instability factors are outstanding and our country and society have paid a high attention to the public safety issues. With the increasing development and in-depth study of the Internet of Things technology, especially the concept of the Public Safety Internet of Things has been proposed, there have been a lot of applications of Internet of Things technology in the public safety field. The public safety information based on Internet of Things has lots of characteristic, such as the large amount of data, a wide variety of data sources, much different of attribute information and so on, besides the different types of information distributes in the different systems. The way of using the transitional data processing method and expression is not conducive to analyze the many kinds of public safety information and monitor, deal with public safety events.In order to make a variety of public safety information is comprehensive, intuitive display, so that the overall security posture at a glance, facilitate the correlation analysis between the various kinds of information, to improve the actual value of the public safety Internet of Things, provide support and protection in the event of public safety and emergency management work. Firstly, this paper introduced the research on Internet of Things technology in the field of public safety, the advantages of people use video-based augmented reality and3D visualization technical processing, expressing and explaining information. We designed the overall structure, the functional modules of public safety information display and management system based on the Internet of things. Studied3D visualization technology,3D graphics rendering engine technology, and the fusion technology based on the projected texture mapping, three-dimensional reconstruction techniques, and database technology. We built the three-dimensional visualization platform, achieved surveillance video information and device information of the public safety Internet of Things on the three-dimensional scene model. We built public safety information management platform and achieved management of the Internet of Things attribute information, historical alarm information and the fusion parameters. Finally, pointing out the shortcomings in the study and future research are put forward. |