Designing an Indoor Situation-aware Ubiquitous Platform Using Rule-based Reasoning Method

Abstract

In recent years, with the development of computing technology, it becomes realizable to use embedded micro-processors in order to provide a variety of services. For example, some systems have been proposed to provide context-aware services such as protecting children from dangers, taking care of patients and so on, by getting the user’s surrounding information using mobile computing technology and sensor networks. However, these systems can not describe the information gotten from sensor network as situations explicitly and uniformly, and also can not recognize the specified situations defined by the users. Therefore, we design this ubiquitous platform which can accomplish the above functions. We get the indoor objects position information from U-tile sensor network. And we design a language named SDML which is based on the situation theory to describe situations explicitly and uniformly. We also design an easy-to-understand interface to let users sketch the specified situations and support actions on those situations, which can be transformed into situations by SDML and then into rules. Finally we use the rules to recognize the specified situations by comparison the information grasped by the U-tile sensors with the user-defined situations, and provide the corresponding support services.