RemoteEyes: A Remote Low-Cost Position Sensing Infrastructure for Ubiquitous Computing

This paper describes the architecture of a remote low-cost position sensing infrastructure for ubiquitous computing. To reduce the cost, each tracked object carries an inexpensive active tag that emits a modulated near-infrared signal, which is received and decoded by a camera module. Each camera module consists of a CMOS camera connected to a Field Programmable Gate Array (FPGA) and Ethernet communication hardware. Remote sensing can be achieved by means of Ethernet. The use of inexpensive FPGA to implement the most timeand data-critical tracking algorithms provides a costeffective platform with low latency. The preliminary results suggest it is successful at tracking objects and feasible for achieving medium fidelity tracking performance in both space and time.