Author : Vijayalakshmi G 1
Date of Publication :7th June 2016
Abstract: Over 1.5 billion in the world the elders are suffering from challenges of some sort of memory loss. A very common discomfort is in forgetting where their valuable objects are located, at their residences, cars, offices, etc. Conventional electronic methods to help such people employ a radio signal to excite a beeper tag attached to the object being searched, so that the object is traced by tracking the audible beep. However for people who have auditory challenges and in environments where loud beeps are not encouraged, or at distances where audibility is low, a more sophisticated technology has to be employed, without significant increase in cost and complexity of operation. Considering specific challenges mentioned above the possibility of elderly user’s inability to read, write, type, this paper presents a novel method of object location using sensor networks and a locator tag attached to objects in residential settings that can be used not only to track objects, their location and neighbourhood. The system employs a simple, affordable, low-power mobile sensor tag that can either respond on demand to queries originating from a locator or proactively keep informing sensors about its locality, in addition to the legacy alarm sounding method. The paper presents the method and performance of such a system as shown by experimental results.
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