Service-Oriented Actuator for Ubiquitous Smart Space

摘要

In an ubiquitous smart space (USS), a lot of contexts exist based on the abundant sensing infrastructure and smart devices are needed to understand them. If the legacy devices for being adapted to USS are all replaced to new and smart ones, they have to be re-produced with a new standard form. To connect and execute them effectively in this environment involves compatibility and cost problems. Even if smart devices are operating in the USS, they just understand not userȁ9;s abstract request such as ȁ8;manage temperatureȁ9; but the function-level operations such as ȁ8;turn on/offȁ9;. In this paper, we propose a service-oriented actuating method to provide the service with user-level abstraction in the USS. We first deploy service ontology, metaservice and then develop an embedded system, USA (Universal Service Actuator) which helps to make connecting devices by three interfaces such as Serial, Infra-Red and Digital I/O to solve the compatibility and the cost problem. As experimental results, some home appliances with USA can understand and execute userȁ9;s abstract request from the home server and report the running state.