Intelligent Appliances Research Articles

UPnP IPv4/IPv6 bridge for home networking environment

The purposes of universal plug and play (UPnP) are to allow consumer electronics, intelligent appliances (IA) and mobile devices from different vendors to be Internet connected seamlessly and installed easily at home. Also, as the IPv6 environment becomes inevitable, IPv6 ready IA are more and more popular. However, the fact is that IPv4 UPnP control points cannot communicate with IPv6 UPnP devices or vice versa. In this paper, we proposed an UPnP IPv4/IPv6 bridge for control points and devices can interoperate between IPv4 and IPv6 protocols; that is, they can communicate with each other although some of them support only IPv4 and others support IPv6.

Service integration with UPnP agent for an ubiquitous home environment

Consumer electronics and intelligent appliances can be successful and widely used in a smart or ubiquitous home environment. Service integration had become an important issue for system development. In this paper, we present an approach for UPnP devices connecting to outer networks via UPnP aware gateway. We develop service on a smart campus network based on enhanced UPnP technologies as an example. Under such framework, intelligent system provides users individual information at the right place and the right time.

High-performance RF signals transmission in SCM/WDMA radio-on-fiber bus link using optical FM method in presence of optical beat interference

In the near future, various wireless services such as a wireless local area network and an intelligent home appliance will be widely used at home or office. To connect among many radio base stations such as a home or office network, a subcarrier multiplexing/wavelength division multiple access (SCM/WDMA) radio-on-fiber (RoF) bus link is excellent in simplicity and flexibility. However, a degradation of RF transmission performance due to optical beat interference (OBI) is a severe problem. This paper proposes the reduction method of OBI using an optical frequency modulation (OFM) method in the SCM/WDMA RoF bus and theoretically analyzes the availability of this proposed method. Using the OFM method, the power spectral density of the OBI can be reduced and the improvement of carrier power to noise power ratio before FM demodulation using the proposed method is obtained at approximately 4 and 9 dB compared to the intensity modulation/direct detection method when FM index /spl beta//sub FM/ is 1 and 10, respectively.

Diffusion of pervasive technologies: a preliminary investigation

Computing technologies have grown to saturate every aspect of human life, with high speed and in broader aspects. As a result, a major revolution in information technology is emerging in the form of pervasive computing technologies. Pervasive computing is a technology that integrates intelligent instruments, appliances, information sources and information analysis tools by high speed wire or wireless networks into a new class of ubiquitous intelligence appliances. This new class of appliances allows users to have the ability to function at any time and anywhere, which provide a convenient access to relevant information and applications. This paper will address some of the key issues related to pervasive computers as they relate to the diffusion of this broad array of new technologies.

End-user developers at home

There have been many "homes of the future" demonstrations, in which intelligent appliances communicate with each other for the convenience of the homeowner. Manufacturers, wealthy celebrities, gadget lovers, and researchers think they are great. But now that transport-layer technology for highly networked homes is commercially feasible (whether WiFi or simply cheap cabling), it's time to ask why typical households need it.

A portable Java API interface to simplify user access to digital cameras

The digital camera is one of the main successes in consumer electronics. However a typical digital camera remains tied to proprietary software on a personal computer. In this paper we describe the design and implementation of a portable Java API to simplify end user access to digital cameras and to provide interconnectivity with a new generation of intelligent home appliances.