System and method for correcting position information of surrounding vehicle

Abstract

The present invention relates to a system and a method for correcting position information of a surrounding vehicle, which provide accurate position information of a surrounding vehicle by correcting the position information of the surrounding vehicle received through vehicle-to-vehicle communication, and identifies a license-plate number of a front vehicle through a sensor mounted in a vehicle, calculates a position of the front vehicle, and compare position information, which is included in information including the identified number of the front vehicle in information received from the surrounding vehicle, with the calculated position of the front vehicle to correct the position information of the surrounding vehicle.

What is claimed is: 
     
       1. An apparatus in a first vehicle to correct position information of a surrounding vehicle, the surrounding vehicle being located in a surrounding area of the first vehicle, the apparatus comprising:
 a front vehicle location unit comprising one or more processors configured to:  
 obtain a license-plate number identifier information of a second vehicle that is travelling in front of the first vehicle, 
 measure a distance from the first vehicle to the second vehicle, and 
 calculatedetermine a position of the second vehicle; 
 a surrounding vehicle information receiving unit receiver configured to receive license-plate numbers identifier information and position information of one or more surrounding vehicles that are travelling in the surrounding area of the first vehicle; 
 a position information correcting unit comprising one or more processors configured to:  
 search foridentify the license-plate numberidentifier information of the second vehicle among the license-plate numbersidentifier information of the one or more surrounding vehicles received by the surrounding vehicle information receiving unitreceiver, 
 compare the calculated determined position information of the second vehicle among the position information of the one or more surrounding vehicles with a received position information of the second vehicle received from the surrounding vehicle information receiving unit receiver, 
 correct the received position information of the second vehicle according to a result of the comparing, and 
 transmitprovide the corrected position information to a driving assist system to prevent a collision between the first vehicle and the second vehicle, 
 wherein the collision between the first vehicle and the second vehicle is prevented by an autonomous emergency braking a forward collision warning system. 
 
     
     
       2. The apparatus of  claim 1 , wherein the position information correcting unit comprising one or more processors is further configured to: 
 calculatedetermine a correction value based on a difference between the received position information of the second vehicle and the calculateddetermined position of the second vehicle, and to 
 correct the received position information of the second vehicle according to the calculated determined correction value. 
 
     
     
       3. The apparatus of  claim 2 , further comprising a display, wherein the position information correcting unit comprising one or more processors is further configured to generate a travel map of the second vehicle according to the corrected position information, and to display the generated travel map on the display. 
     
     
       4. The apparatus of  claim 1 , wherein, the position information correcting unit comprising one or more processors is further configured to generate a travel map of the second vehicle according to the received position information of the second vehicle when the received position information of the second vehicle is within a range from the calculated determined position of the second vehicle. 
     
     
       5. The apparatus of  claim 1 , wherein the front vehicle location unit comprising one or more processors is further configured to calculate determine the calculated determined position of the second vehicle using the measured distance to the second vehicle, information of a road on which the first vehicle is travelling, and a current position of the first vehicle. 
     
     
       6. The apparatus of  claim 5 , wherein the information of the road comprises total lanes and a curvature of the road on which the first vehicle is travelling. 
     
     
       7. The apparatus of  claim 6 , wherein the front vehicle location unit comprising one or more processors is further configured to: 
 calculatedetermine a relative position of the second vehicle with respect to the current position of the first vehicle using the measured distance to the second vehicle, and 
 in response to the road on which the first vehicle is travelling being a curved road, to calculate determine a relative position of the second vehicle with respect to the current position of the first vehicle using the measured distance to the second vehicle and a direction of the second vehicle. 
 
     
     
       8. The apparatus of  claim 1 , wherein the front vehicle location unit comprising one or more processors is further configured to obtain the license-plate number identifier information of the second vehicle through a camera, and to measure the distance to the second vehicle through a radar or a laser scanner sensor. 
     
     
       9. The apparatus of  claim 1 , further comprising;
 a display unit configured to display a position of the second vehicle according to the position information which is corrected by the position information correcting unit. 
 
     
     
       10. A method to correct position information of a surrounding vehicle, the method comprising:
 obtaining, by a camera sensor, a license-plate number identifier information of a front travelling vehicle, and determining, by a measurement device, a calculated position of the front travelling vehicle; 
 receiving a license-plate number identifier information and position information of one or more surrounding vehicles that are travelling in a surrounding area; 
 searching foridentifying a surrounding vehicle comprising a license-plate numberidentifier information corresponding to the license-plate numberidentifier information of the front travelling vehicle among the received license-plate numbersidentifier information of surrounding vehicles to determine a matching surrounding vehicle; 
 correcting the received position information of the matching surrounding vehicle according to the calculated determined position of the front travelling vehicle; and 
 transmittingproviding the corrected position information to a driving assist system to prevent a collision with the surrounding vehiclefront travelling vehicle, 
 wherein the collision with the surrounding vehicle front travelling vehicle is prevented by an autonomous emergency braking a forward collision warning system. 
 
     
     
       11. The method of  claim 10 , wherein the determining of the position of the front travelling vehicle comprises measuring a distance to the front travelling vehicle, and calculating determining the position of the front travelling vehicle using the measured distance, information of a road on which the first vehicle is travelling, and a current position of the first vehicle. 
     
     
       12. The method of  claim 11 , wherein the determining of the position of the front travelling vehicle comprises:
 calculatingdetermining a relative position of the front travelling vehicle with respect to the current position of the first vehicle using the measured distance to the front travelling vehicle, and 
 when a road on which the first vehicle is travelling is a curved road, calculating determining a relative position of the front travelling vehicle with respect to the current position of the first vehicle using the measured distance to the front travelling vehicle and a direction of the front travelling vehicle. 
 
     
     
       13. The method of  claim 10 , wherein the correcting of the received position information of the matching surrounding vehicle according to the position of the front travelling vehicle comprises:
 calculatingdetermining a correction value according to a difference between the received position information of the matching surrounding vehicle and the calculateddetermined position of the front travelling vehicle; and 
 correcting the received position information of the matching surrounding vehicle according to the calculated determined correction value. 
 
     
     
       14. The method of  claim 10 , wherein the correcting of the received position information of the matching surrounding vehicle according to the calculated determined position of the front travelling vehicle comprises generating a travel map of the matching surrounding vehicle according to the received position information of the matching surrounding vehicle when the received position information of the matching surrounding vehicle is within a range from the calculated determined position of the front travelling vehicle. 
     
     
       15. The method of  claim 11 , wherein the measuring of the distance to the front travelling vehicle comprises measuring by either one of a radar device and a laser device. 
     
     
       16. The apparatus of  claim 1 , wherein the collision between the first vehicle and the second vehicle is further prevented by a forward collision warning an autonomous emergency braking system. 
     
     
       17. The method of  claim 10 , wherein the collision with the surrounding vehicle front travelling vehicle is further prevented by a forward collision warning an autonomous emergency braking system. 
     
     
       18. The apparatus of claim 3, further comprising a display, wherein the position information correcting unit comprising one or more processors is configured to display the generated travel map on the display. 
     
     
       19. The apparatus of claim 1, wherein the front vehicle location unit comprising one or more processors is further configured to measure the distance to the second vehicle through a radar or a laser scanner. 
     
     
       20. The method of claim 13, wherein the correcting of the received position information of the matching surrounding vehicle according to the determined position of the front travelling vehicle further comprises:
 generating a travel map of the surrounding vehicles according to corrected position information.