Radiation fog detection and warning system of highway based on wireless sensor networks

Highway safety is a major concern to the public and to transportation professionals, so the number of crashes caused by poor visibility due to fog form an alarming statistic. Based on a technique using wireless sensor networks (WSNs), this paper presents a flexible framework for radiation fog detection and warning system. This framework serves as a basis for future research in designing and implementing radiation fog detection and warning applications. A two-layer network architecture is established for weather conditions information acquisition in the context of a WSN environment. Experiments have shown good performance of the proposed warning system based on WSNs.