Intelligent Sensor System for Real Time Tracking and Monitoring

A smart sensor system for tracking and monitoring has been developed. This system uses fiber grating based 3D vision sensor. The sensor system encodes the space coarsely by using limited number of geometrically interrelated 2D laser spots generated through two perpendicularly overlaid layers of fiber gratings. The reflected spots and specially the disturbed one play an essential role in detecting targets. The author has developed zone-based strategy to enable the detection of a person within any of the zones, track the possible transitional movement between zones, and use the inter-zones relation to conclude human behavioral status. This approach has the advantage of reducing significantly the computation time of 3D information that is required for efficient real-time tracking and monitoring. The system has been implemented and the developed tracking strategy is illustrated through an application to monitor the behavioral status of a patient in a room within a hospital.