Abstract
Achieving situation recognition in ubiquitous sensor networks (USNs) is an important issue that has been poorly addressed by both the research and practitioner communities. This paper describes some steps taken to address this issue by effecting USN middleware intelligence using an emerging situation awareness (ESA) technology. We propose a situation recognition framework where temporal probabilistic reasoning is used to derive and emerge situation awareness in ubiquitous sensor networks. Using data collected from an outdoor environment monitoring in the city of Cape Town, we illustrate the use of the ESA technology in terms of sensor system operating conditions and environmental situation recognition.
Highlights
The combination of wireless sensors with the RFID technology [1,2] is emerging as an important segment of the first mile connectivity of a generation ubiquitous Internet where the informationSensors 2010, 10 will be accessed anywhere and anytime and by anyone and using anything
Devices are placed into the environment to sense what is happening and report to sink nodes via ubiquitous sensor networks (USNs)-bridges (2) A USN access networking layer where USN-bridges and sink nodes are used as an access network for the first-mile connectivity of a Generation Network (NGN) gateways (3) a USN middleware, residing inside or outside the gateway, used as an interface between the Next Generation Network (NGN) and the application layer and (4) different applications embodied into a USN applications layer to perform tasks related to logistics, structural health monitoring, agriculture control, disaster surveillance, military field surveillance, disaster/crisis management and many others
Building upon a common vision of pervasive computing, this paper presents a network management system for ubiquitous sensor networks and proposes a framework using the emerging situation awareness (ESA) technology to achieve situation recognition
Summary
The combination of wireless sensors with the RFID technology [1,2] is emerging as an important segment of the first mile connectivity of a generation ubiquitous Internet where the information. Derived from the Latin world ubique which denotes everywhere, ubiquitous computing— called pervasive computing and often related to as ambient intelligence—is a post-desktop model of human-computer interaction which considers a thorough integration of the information processing into our daily life by engaging heterogeneous computational devices and systems simultaneously into objects that we manipulate These objects and devices are used in our activities to deliver different services in a heterogeneous environment that involves a number of applications, protocols, operating systems, processors, and architectures. USN deployments involve thousands of nodes sensing/reading their environment and sending the sensor readings to a sink node playing the role of base station connected to a more powerful computing device called gateway where information is processed locally or disseminated to remote processing locations where appropriate decisions are taken concerning the environment to be monitored This process results in massive datasets that require appropriate processing to reveal hidden patterns used in situation recognition, prediction, reasoning and control and appropriate decision making.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
