Real-time visualization of abstract relationships between devices
Arjun Ramegowda Narayanswamy · DSpace@MIT (Massachusetts Institute of Technology) · 2003
In the near future, the living space of the user will be populated by many inter-communicating devices. We are motivated by the high-level vision of exposing these relationships to the user so that they may be inspected and modified in real-time. We have identified three sub-problems of this vision that we tackle in this thesis. These are (1) the design of a directional device identification system, (2) the design and implementations of a rest-detection system and an (3) evaluation of the tilt-meters of the Mercury backpack. We have established five criteria for evaluating directional identification systems. We propose a new tag system based on the principles of di-rectional query, broadcast response and photo-triggered power tags that meets these criteria. We have also designed and implemented a more robust rest-detection sys-tem by augmenting traditional tilt-meter readings with video data. The system is implemented as a library and an API in Linux to facilitates easy integration into applications. A sample application of rest-detection to Cricket beacon estimates is presented. And finally, we have concluded our empirical analysis of the Mercury