METHOD AND SYSTEM FOR IMPROVING ACCURACY OF POSITION CORRECTION DATA IN DIFFERENTIAL GLOBAL POSITIONING SYSTEM USING VEHICLE TO VEHICLE COMMUNICATION
First Claim
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1. A system for improving accuracy of a position correction data in a differential global positioning system (DGPS) through vehicle to vehicle (V2V) communication, comprising:
- a global positioning system (GPS) reception unit configured to receive a GPS data from a satellite;
a V2V communication unit configured to transmit and receive a DGPS correction data, while communicating with a road side unit (RSU) or other vehicles within a communication coverage;
a sensor configured to detect a distance between the vehicle and another neighboring vehicle within the communication coverage;
a multi-hop data processing unit configured to retransmit the DGPS correction data received from the RSU or the other vehicles within the communication coverage as multi-hop information, through the V2V communication unit, according to a control data; and
a control unit configured to compare and calculate information output from the GPS reception unit, the V2V communication unit, and the sensor installed in the vehicle to calculate a correction position of the vehicle and correction accuracy, compare the calculated correction accuracy to a predetermined reference value, and control the multi-hop data processing unit based on a compared result to retransmit the DGPS correction data.
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Abstract
A method and system for improving accuracy of a position correction data in a differential global positioning system (DGPS) using vehicle to vehicle (V2V) communication, capable of correcting a DGPS data received from a road side unit (RSU) into information calculated by a sensor, and providing neighbouring vehicles with the corrected value as the DGPS data using the V2V communication, are provided.
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Citations
14 Claims
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1. A system for improving accuracy of a position correction data in a differential global positioning system (DGPS) through vehicle to vehicle (V2V) communication, comprising:
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a global positioning system (GPS) reception unit configured to receive a GPS data from a satellite; a V2V communication unit configured to transmit and receive a DGPS correction data, while communicating with a road side unit (RSU) or other vehicles within a communication coverage; a sensor configured to detect a distance between the vehicle and another neighboring vehicle within the communication coverage; a multi-hop data processing unit configured to retransmit the DGPS correction data received from the RSU or the other vehicles within the communication coverage as multi-hop information, through the V2V communication unit, according to a control data; and a control unit configured to compare and calculate information output from the GPS reception unit, the V2V communication unit, and the sensor installed in the vehicle to calculate a correction position of the vehicle and correction accuracy, compare the calculated correction accuracy to a predetermined reference value, and control the multi-hop data processing unit based on a compared result to retransmit the DGPS correction data. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for improving accuracy of a position correction data using a vehicle to vehicle (V2V) communication, comprising:
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receiving, by a reception unit in a vehicle, global positioning system (GPS) information; receiving, by the reception unit in a vehicle, a differential global positioning system (DGPS) correction data transmitted from a road side unit (RSU); performing, by a control unit, correction for the GPS information based on the received DGPS correction data; receiving information for a distance to another neighboring vehicle within a communication coverage area and a relative position from a sensor embodied within the vehicle; calculating, by the control unit, a correction position of the vehicle and accuracy of the DGPS correction data based on the information obtained from the performing correction for the GPS information and the receiving the information of the distance and the relative position; comparing, by the control unit, the accuracy calculated from the calculating the correction position and the accuracy of the correction data to a predetermined reference value; and retransmitting, by the control unit, the DGPS correction data depending on a result compared from the comparing the accuracy. - View Dependent Claims (8, 9, 10)
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11. A non-transitory computer readable medium containing program instructions executed by a processor or controller within a vehicle, the computer readable medium comprising:
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program instructions that perform correction for received global positioning system (GPS) information based on received differential global positioning system (DGPS) correction data; program instructions that calculate correction position of the vehicle and accuracy of the DGPS correction data based on the information obtained from the performing correction for the GPS information and information received related to a distance to another neighboring vehicle within a communication coverage and a relative position from a sensor embodied within the vehicle; program instructions that compare the accuracy calculated from the calculating the correction position and the accuracy of the correction data to a predetermined reference value; and program instructions that retransmit the DGPS correction data depending on a result compared from the comparing the accuracy. - View Dependent Claims (12, 13, 14)
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Specification