Patent ID: 8068036

Claim:
A system for avoiding intersection vehicle collision, said system comprises of; a intersection traffic signal(s) condition transmitter(s), or transceiver(s), a vehicle mount or portable collision avoidance device, containing a vehicle speed compare-tore CPU, and an RF transceiver, and a vehicle travel direction detection circuitry, and a first and a second warning alarm circuitry, said vehicle collision avoidance device RF transceiver is design to receive traffic condition signals, and transmit RF warning alarm signal(s) to other vehicle(s), equipped with a collision avoidance device, said intersection traffic signal transmitter(s) and or transceivers(s) at pre-set time interval transmitting unique coded signal containing information to each one of said particular direction traffic signal condition, if a particular direction traffic signal condition does not permit said particular direction traveling vehicle(s) to pass the intersection, at a predetermine distance from said intersection said vehicle(s) collision avoidance device speed comparator CPU receiving said uniquely coded traffic signal condition signal which is associated with said vehicle travel direction, said vehicle speed comparator processor compares said received traffic signal condition signal 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 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.