Patent ID: 8179239
Filing Date: 2012-05-15
Classification: G08G

Abstract:
1. A driving safety auxiliary network administration system, comprising: a) a plurality of secondary nodes connected with each other within an effective communication range, each of which broadcasts its own driving message thereof and receives the driving messages of other secondary nodes having a vehicle identification number (VIN), determining and warning about a potential danger according to the received messages of the other secondary nodes; and b) a primary node connected with the secondary nodes within the effective communication range for collecting the driving messages of the secondary nodes and broadcasting the driving messages thereof; wherein the primary node performs an anti-collision algorithm according to the collected driving messages and obtains a possible path of at least one secondary node, finds threat relations among the vehicles according to the possible paths and establishes at least one threat correlation group, assigns priorities to the threat correlation groups according to their threatening levels, and sends a broadcasting packet to the secondary nodes in each of the threat correlation groups according to the priorities until all of the secondary nodes of each of the threat correlation groups have returned an acknowledging packet; each secondary node including a primary node selection procedure including the steps of: a) collecting messages broadcast from the secondary nodes in a predetermined time, computing the amount of driving messages received at the current position, and broadcasting the VIN, the amount of driving messages, the distance to a geographical center, and sending time when the predetermined time is reaches; b) determining whether the amount of driving messages collected by the vehicle is more than the other secondary nodes; c) remaining as the secondary node if it does not have more amount of driving messages; and d) determining whether there is any other secondary node with the same amount of driving messages if it has more amount of driving messages and, if not, changing itself from the secondary node to the primary node or, if yes, comparing the distance from the vehicle and the other secondary nodes with the same amount of driving messages to the geographical center and changing itself from the secondary node to the primary node when the distance is the shortest or remaining itself as the secondary node if it is not.