August 2016
Intermediate to advanced
206 pages
6h 1m
English
Content preview from Pervasive Computing
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial



Context Collection, User Tracking, and Context Reasoning
Context refers either to aspects of the physical world or to conditions and activities in the virtual world. As a kernel technique, context awareness plays a key role in pervasive computing. By context awareness, pervasive systems can sense their environments and adapt their behavior accordingly.
This chapter introduces how to collect pervasive context through wireless sensor networks (WSNs) and then presents a user tracking scheme in Section 3.2. Finally, Section 3.3 discusses various reasoning models and techniques, together with performance evaluation.
3.1 Context Collection and Wireless Sensor Networks
Context can be any information that characterizes the situation of various ...