臺灣博碩士論文加值系統

資訊科技的迅速發展使一般家庭電器變成智慧型家電，智慧型家電能在數位家庭網路環境底下作互動與分享它們之間的資訊。本論文提出了一個無處不在的智慧型家電與音訊串流存取平台，此平台主要提供兩個主要服務︰(1) 智慧型家電存取服務與(2) 音訊串流存取服務。使用者能利用桌上型電腦､智慧型手機與藍牙耳機透過家庭閘道器去存取以上服務。智慧型家電存取服務能令使用者可以在任何時間或任何地方去存取家電，而多個智慧型家電之互動可透
過互動服務語言去描述與實現。音訊串流服務令使用者在數位家庭內可以利用藍牙耳機去存取存放在不同電腦內之音訊檔案，當使用者裝備著藍牙耳機從一房間移動到另一房間的時候，會造成訊號強度的減弱，本系統利用低運算能力換手機制去保持連續之音樂。本系統還提供了一個網頁介面給使用者，不管使用者有沒有在家裡也能利用此介面去存取智慧型家電､音訊檔案，並且定義智慧型家電的互動。

The radical development of information technology makes the new generation of home appliance become Information Appliances (IA). IAs can interact and share information inside the UPnP home network. In this thesis, we proposes the Ubiquitous IAs and Audio Streaming Access Platform (UIAP) that includes two main services: (i) IA Access Service and (ii) Audio Access Service. User can use a PC, a handheld device and a light-weight Bluetooth headset to access the above two services via the home gateway. IA Access Service enables users access IAs anytime and anywhere. Inter-IA interactions which involve more than one IAs to cooperate together are achieved and speci ed in Service Interaction Script (SIS) language. Audio Access Service enables users to access audio files which are distributed in different media servers by using the light-weight Bluetooth headset in the digital home network. When users with the light weight Bluetooth headset roam from one room to another, it may cause the degradation of signal quality, UIAP will perform the Computing Powerless Handoff (CP-Handoff) procedure to keep continuous audio streaming. In UIAP, the home gateway provides Web-based interface for users to access IAs, audio files and to
define inter-IA interaction no matter they are at home or out of home.

1 Introduction 1
2 Related Works 8
2.1 IA Access Service 8
2.2 Roaming Audio Streaming Service 9
3 Ubiquitous IAs and Audio Access 12
3.1 IA Access Service 13
3.1.1 Inter-IA Interaction Customization 14
3.1.2 Web-based IAs' Access 15
3.1.3 UPnP Message Translation 16
3.2 Roaming audio streaming service 17
4 Instantaneous Re_ection of Inter-IA Interaction 21
4.1 Service Interaction Script Language (SIS) 21
4.1.1 IA Access Statements 22
4.1.2 Parallel Statement 22
4.1.3 Interaction Event Handling Statements 23
4.1.4 An Illustrated Example of Using SIS 24
4.2 Web-based Inter-IA Interaction Development 26
5 Computing Powerless Handoff Control Scheme for LW-BT Headset 27
5.1 Issues of Computing Powerless Handoff (CP-Handoff) for Bluetooth Audio Application 27
5.1.1 Bluetooth Audio Streaming Preliminary 28
5.1.2 Limitations of Computation Powerless Device: the LW-BT Headset 28
5.2 Computing Powerless Handoff ( CP-Handoff ) 31
5.2.1 Neighbor Discovery 31
5.2.2 CP-Handoff for LW-BT Headset 33
6 System Architecture 37
6.1 Components of UIAP 37
6.1.1 Handheld 37
6.1.2 IA 38
6.1.3 Media Server 38
6.1.4 Home Gateway 39
6.1.5 Bluetooth Gateway 41
6.2 SIS Interpreter 42
7 Evaluation 48
7.1 Performance of IA Access Service 48
7.1.1 Non-networked Appliances Adaptation 48
7.1.2 Web Control Interface for Handhelds 50
7.1.3 Example: Room Automation 52
7.1.4 Evaluation of SIS 53
7.2 Performance of Roaming Audio Streaming Service 55
7.2.1 Handoff Delay 56
8 Conclusion 58

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