AN APPARATUS AND METHOD EMPLOYING SENSOR-BASED LUMINAIRES TO DETECT AREAS OF REDUCED VISIBILITY AND THEIR DIRECTION OF MOVEMENT

摘要

A method and system that relies on visibility detectors deployed on luminaires in outdoor lighting networks (OLNs) to independently treat and consolidate the sensed data in a fault-tolerant manner. By communicating with neighboring luminaires and/or with a centralized server, the invention is able to identify the position and direction of movement of areas of reduced visibility(e.g. fog). This information can then be used to alert drivers who are approaching the identified area.