A wireless sensor network approach to enable location awareness in ubiquitous healthcare applications

Abstract

In this paper, we outline the research isues that we are pursuing towards building of location aware environments forTo locate an object, such as patient or elderly person, the active ceiling-mounted reference beacons were placed throughoutthe building. Reference beacons periodically publish location information on RF and ultrasonic signals to allow applicationrunning on mobile or static nodes to study and determine their physical location. Once object-caried passive listenerreceives the information, it subsequently determines it’s location from reference beacons.and 12 cm for location awareness in indoor environments by using only the sensor nodes and wireless sensor networktechnology. Passive architecture used here provides the security of the user privacy while at the server the privacy wassecured by providing the authentication using Geopriv approach. This information from sensor nodes is further forwardedto base station where further computation is performed to determine the current position of object.