Framework para implementação de serviços transmissores de vídeos voltados a PCS e dispositivos móveis, perceptivo à mudança contextual de localização.
Abstract
With the progress of the technology in data transmission area and the fact of computers
be present more and more in several equipments, like PDAs (Personal Digital Systems),
mobile telephones, cars, refrigerators, etc, it becomes necessary to establish a standart
communication protocol among these several computers. The work presented in this
monograph has as objective to define a necessary infrastructure to implementations of
videos transmission services for mobile devices (PDAs and mobile telephones) with
transparent change of location context. This context change represents the change of
physical atmosphere of the proposed system user. The idea is that the user continues to
watch a video (in a mobile device) when he leaves the place where he was watching it.
A framework was modeled and implemented to detect change of physical atmosphere
destined to videos transmission services directed to mobile devices. High degree of
mobility and transparency is characteristic of Ubiquitous Computation (Computation
new moment - Weiser). For a theoretical basement was carried through a research on
the concepts related with Ubiquitous Computation, mobile devices and video
transmissions. This work was developed in the Network and Distributed Systems
Laboratory of São Carlos Federal University - UFSCar.