A Study on the Spatial Division and Identifier Assignment Method for Objects Location in Indoor Digital Twin

In order to provide interoperability between heterogeneous IoT objects in indoor digital twin, this study deals with methods for specifying the location of indoor objects. To this end, we discuss indoor spatial division, the design of identifiers, and how to assign identifiers to objects. The key idea is to apply the concept of street name address to indoor spaces. We directly produced spatial information and implemented the system for the verification of the proposed study. And a total of 14 sensors were installed and checked in the indoor space. As a result, we confirmed the advantage of reducing the implementation complexity of the digital twin system.