Design Of Sentient Network And Its Protocol Based On Bluetooth In Ambient Intelligence

Ambient Intelligence (AmI) is an initiative for the future information sociality proposed by the Europe ISTAG, which can be response to user's behavior. The key characteristics of AmI are ubiquity, awareness, intelligence and natural interaction. Local Ambient Intelligence (Local-Ami) is an AmI prototype applied in a local area and have the capability of seamless sensing user's identity information as well as localization. Local-Ami can conduct fussy identification and authentication process in an automatic and user-transparent way, and let users actually enjoy the nature, comfortable and personalized services.Bluetooth technology is a worldwide open standard of wireless communication. It supports low cost low power short distance wireless connection. Therefor, Bluetooth is introduced into Local-Ami system and regarded as a method to realize user's seamless sense. This dissertation analyzes Bluetooth technology, its protocol system architecture and profiles. Based on this analysis, Bluetooth Sentient Network is designed on the basis of the following four aspects - physical architecture, connection strategy, security strategy, low power strategy - to achieve the goal that Local-AmI system can obtain user's identity and area position information seamlessly.Meanwhile, Bluetooth Sentient Network, designed by Full On-chip Mode, is composed by BlueSensor and BlueAP. Additional, combined Bluetooth Serial Port Profile (SPP) and the software BlueLab, provided by CSR company, to complete sentient protocols design and software design. Then, the prototype system is evaluated. The experimental results show that the running stability of the system has reached some functional requirements.Finally, it summaries the done and undergoing research, states some facing problems and estimates the future work.