sOc-EUSAI'2005 conference

Regular session - Middleware
O6-1 Distributed Implementation of a Self-Organizing Appliance Middleware
Hellenschmidt, Michael
As formated for the printed proceedings - - 16.pdf - pages 201-206
As delivered by the authors - 16_pdf_file.pdf
Abstract :
A middleware for real ad-hoc cooperation of distributed device ensembles must support self-organization of its components. Self-organization means that the independence of the ensemblesí components is ensured, that the ensemble is dynamically extensible by new components and that real distributed implementation is possible. Furthermore the data-flow of messages within the ensemble may not be statically determined. This article presents the distributed implementation of the SodaPop model for distributed device ensembles of physical heterogeneous devices as well as the distributed handling of conflict resolution strategies that guarantee the data-flow even if there are competing components. The proposed approach relies on the principle of device representatives. Here physical devices host their components and disburden them from communication and service composition strategies.

O6-2 A Generic UPnP Architecture for Ambient Intelligence Meeting Rooms and a Control Point allowing for integrated 2D and 3D Interaction
Shirehjini, Ali Asghar Nazari
As formated for the printed proceedings - - 32.pdf - pages 207-212
As delivered by the authors - 32_pdf_file.pdf
Abstract :
In this paper we present a generic UPnP Presentation Architecture for AmI meeting rooms. It allows the development of applications based on standardized access mechanisms. This architecture introduces besides standard lighting devices also a UPnP design for complex projection settings, analog audio-video devices, shutter blinds and media repositories. Using this architecture, AmI developers benefit form UPnP device discovery as well as standardized access to devices and media repositories. This allows the development of interaction solutions working in various AmI environments that may be composed by different device infrastructures. Based on this architecture, we present the PECo system, a novel Control Point which provides integrated and intuitive access to the user's surrounding and media repositories allowing to control and manage intelligent environments. PECo uses an automatically created 3D visualization of the environment. Entering a room, PECo discovers the infrastructure and available devices and builds the integrated user interface. The 3D visualization creates a logical link between physical devices and their virtual representation on the user's PDA. By doing so, the user can easily identify a device within his environment based on its position, orientation and form. There he can access the identified devices through the 3D interface and manipulate them directly within the scene. For example he can click on a 3D object to turn on a light. The 3D interface allows the user to access the infrastructure without demanding knowledge about specific device names, IP-numbers, URLs etc.

O6-3 A Reflective Middleware for Controlling Smart Objects from Mobile Devices
Ipina, Diego Lopez de - Vazquez, Inaki - Garcia, Daniel - Fernandez, Javier - Garcia, Ivan
As formated for the printed proceedings - - 23.pdf - pages 213-218
As delivered by the authors - 23_pdf_file.pdf
Abstract :
Mobile devices are mainly used for communication, entertainment, and as electronic assistants. However, their increasing computational, storage, communicational and multimedia capabilities make them suitable for previously unexpected scenarios such as Ambient Intelligence (AmI). Thus, mobile devices may be used as intermediaries between us and the smart objects (everyday objects augmented with computational services) in our surroundings. This paper describes the design and implementation of a middleware to transform mobile devices into universal remote controllers of smart objects.

O6-4 RFID middleware design - addressing application requirements and RFID constraints
Floerkemeier, Christian - Lampe, Matthias
As formated for the printed proceedings - - 53.pdf - pages 219-224
As delivered by the authors - 53_pdf_file.pdf
Abstract :
Radio Frequency Identification (RFID) technology holds the promise to automatically and inexpensively track items as they move through the supply chain. The proliferation of RFID tags and readers will require dedicated middleware solutions that manage readers and process the vast amount of captured data. In this paper we analyze the requirements and propose a design for such an RFID middleware. We argue that an RFID middleware should not only focus on the application needs, but must also consider the constraints imposed by passive RFID technology.