Patent ID: 8773281
Filing Date: 2014-07-08
Classification: G01S,G08G,H04L,H04W,Y02D

Abstract:
1. A system for avoiding intersection vehicle collision, said system comprises of; a vehicle mount or portable collision avoidance device, containing a vehicle speed compare-tore CPU or speed reader, and a GPS vehicle travel direction and location detection circuitry, an RF transceiver, for receiving plurality of location traffic signal light condition information from a broadcasting station, at least one traffic light condition signal information at acquisition time, includes, a traffic light period an elapsed time period from a time point changed to the corresponding signal to the acquisition time point of the traffic light information, traffic light location information, information about the acquisition time point of the traffic light information, and designed to communicate with RF warning alarm signal(s) with other vehicle(s), equipped with a collision avoidance device, and a first and a second warning alarm circuitry, said traffic light broadcasting station transmitting signals containing information to each one of said plurality location traffic signal light condition, if a particular traffic signal condition information does not permit particular direction traveling vehicle(s) to pass the intersection, at a predetermine distance from said intersection, said vehicle(s) collision avoidance device receiver receives said traffic signal condition information associated with said vehicle travel direction, said vehicle collision avoidance device processor compares said received traffic signal condition signal information with said vehicle GPS travel direction, GPS location distance from said intersection signal light location, and compares with said vehicle speed, if said vehicle speed is not in compliances with said traffic signal condition, said vehicle collision avoidance device initiates said first internal warning alarm signal(s) to warn the driver to slow down the vehicle to stop at said intersection, if the driver becomes non responsive to said first warning alarm signal(s), at a predetermined time said vehicle collision avoidance device initiates said secondary external alarm signal by transmitting RF warning signal(s) to said other vehicle(s) located within or within the boundaries of said intersection, said other vehicle(s) collision avoidance device upon receipt of said transmitted signal(s) generates a warning alarm signal(s) to alert the driver to take necessary measures to avoid intersection collision with said vehicle.