U-Interactive: A Middleware for Ubiquitous Fashionable Computer to Interact with the Ubiquitous Environment by Gestures
In this paper we present a system, called U-interactive, that provides spontaneous interactions between human and surrounding objects in heterogenous ubiquitous computing environments. Our U-interactive system introduces a virtual map, which contains inte
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Abstract. In this paper we present a system, called U-interactive, that provides spontaneous interactions between human and surrounding objects in heterogenous ubiquitous computing environments. Our U-interactive system introduces a virtual map, which contains interactive objects around a user in each ubiquitous environment. In the virtual map, each interactive object is tagged with geographic information and attributes to interact with. Each user can create interactive objects in the virtual map corresponding to physical objects. Also the scope of the map is automatically adjusted according to user’s location (inside building or outdoors) by location services. U-interactive system runs on both mobile devices and infrastructures. U-interactive system provides interoperability with communication methods, such as UbiSpace, UPnP, and Web services. We developed our U-interactive system upon a prototype of ubiquitous environment. U-interactive system contains interactive kiosk, printer, sensor networks, and users. Keywords: Middleware, Ubiquitous Fashionable Computer, HCI, iThrow, Spontaneous Interaction, Service discovery, File Sharing.
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Introduction
Many researches have been come out to realize ubiquitous computing environments in the real world. The common philosophy of the researches is to make a convenient life with surrounding computers. People in the ubiquitous environment access any information by multiple interfaces and displays. It is important to provide easy and comfortable human interfaces in the ubiquitous environments. As to realize ubiquitous environments, our research project teams have developed testbed on KAIST campus called U-TOPIA and a wearable computers named Ubiquitous Fashionable Computer(UFC)[1]. In order to realize U-TOPIA, we are elaborating the campus-wide infrastructures in KAIST campus. U-TOPIA has been equipped with indoor and outdoor testbed for location services which consist of ZigBee and UWB[11] sensor networks. In addition, T.-W. Kuo et al. (Eds.): EUC 2007, LNCS 4808, pp. 694–705, 2007. c IFIP International Federation for Information Processing 2007
U-Interactive: A Middleware for Ubiquitous Fashionable Computer
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Wireless Mesh networks in the campus extends WLAN coverage to the outdoor areas[8]. UFC has been developed as a wearable gadget and cloth as shown in Fig.1 for convenience and portability. In order to interact with the environments userfriendly, UFC has a gesture recognition device called iThrow [2]. iThrow is a ring typed intuitive interface device. iThrow has a 3D accelerometer and a 3D magneto-resistive sensor; thus it can recognize specific commands and two dimensional pointing direction of finger from user gestures. Testbed(Wi-Mesh [Outdoor])
Testbed(ZigBee, UWB[Indoor])
pKASSO, Security Server µ-ware, Middleware
UFC (Ubiquitous Fashionable Computer)
iThrow
Main Module
Attachable Modules
Fig. 1. U-TOPIA architecture and UFC components
A UFC user can select a target inside the testbed by finger pointing as shown in Fig.2-(a). Then the selected target i
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