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Explore how context-driven services require pushing contents into PDAs, avoiding network overload & real-time constraints with a single push at the right moment. Learn about scenarios in malls & museums and a solution involving URL transfer to enhance user experience.
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Pushing Web Pages into Personal Digital Assistants Enrique Costa Montenegro Departamento de Ingeniería Telemática ETSI Telecomunicación Universidad de Vigo, Spain kike@det.uvigo.es
Introduction • Context-driven services need to push contents into PDAs • Minimum client participation • Inefficiency of periodic reloads • Network overload • Real time constraints • Single push at the right moment
Scenario I: Mall • Walking customers with wireless PDAs • Auxiliar Bluetooth/RFID/... location network • Different web pages associated to different positions • Goals: • Event notification: restaurants, cinemas, special offers... • Advertisements
Scenario II: Museum • Walking visitors with wireless PDAs • Auxiliar Bluetooth/RFID/... location network • Different web pages associated to different museum halls • Additional features: • Alarm to suggest manual update • In-depth information links
Our Solution (II) • A) URL sent from server to PDA connection server at a given port • B) PDA connection server submits URL to browser • C) Browser asks for the URL • D) Web server sends Web page to PDA
Conclusions • Need to push URLs into PDAs in some context-driven scenarios • HTTP reloads or Javascript approaches do not scale well • Connection server prototype developed (7 Kb binary) • Future upgrade: Java for individual frame upload