Location-centric storage for safety warning based on roadway sensor networks

We propose a novel vision for roadway safety warning based on sensor networks, aiming at providing user-friendly zero-delay safety warnings to motorists. Our idea leverages the advanced sensing, networking and storage technologies. Roadway sensors detect events and store event records at multiple designated locations along the against traffic direction, such that the passing-by drivers can be alerted to potential dangers or traffic delays through the wireless communication between roadway sensors and the vehicle. We design a location-centric storage (LCS) protocol, which manages the propagation and storage of event records based on the time needed to clear the road. In LCS, the density of the sensors storing an event record decreases logarithmically with respect to the distance to the event location. Thus, the closer to the event position, the more number of warnings a driver may obtain. LCS is further tailored for the case of “highway” sensor networks when all sensors are deplo...

• Type: Journal
• Year: 2007
• Where: JPDC
• Authors: Kai Xing, Xiuzhen Cheng, Fang Liu, Shmuel Rotenstreich
• Keywords: Event Record, JPDC 2007, Roadway, Sensor