Patent ID: 8744740

Claim:
A method of detecting a relative location of an opposing vehicle from a driver's vehicle using Global Positioning System (GPS) information, comprising: a) receiving, by a communication module of the driver's vehicle, pieces of GPS raw data and pieces of GPS post-processing data of the driver's vehicle and of the opposing vehicle from GPS satellites, respectively; b) determining, by a control unit of the driver's vehicle configured to communicate with the communication module of the driver's vehicle, using the received pieces of GPS post-processing data acquired via communication between the driver's vehicle and the opposing vehicle by the communication module of the driver's vehicle whether the opposing vehicle has entered a predetermined range; c) if the control unit of the driver's vehicle determined that the opposing vehicle has entered the predetermined range, determining, by the control unit of the driver's vehicle, whether common data is present in the received pieces of GPS raw data of the driver's vehicle and of the opposing vehicle by comparing the received pieces of GPS raw data between the driver's vehicle and the opposing vehicle; d) if the common data is present in the pieces of GPS raw data of the driver's vehicle and of the opposing vehicle, calculating, by the control unit of the driver's vehicle, the relative location of the opposing vehicle from the driver's vehicle using the common data in the received pieces of GPS raw data of the driver's vehicle and the opposing vehicle; and e) if common data is not present in the received pieces of GPS raw data of the driver's vehicle and of the opposing vehicle, calculating, by the control unit of the driver's vehicle, the relative location of the opposing vehicle from the driver's vehicle using the received pieces of GPS post-processing data of the driver's vehicle and of the opposing vehicle.