APPARATUS FOR CORRECTING POSITION OF VEHICLE AND METHOD THEREOF

• Main Authors: SEO MYUNG HWAN, YEO JONG YUN
• Format: Patent
• Language: English; Korean
• Published: 07.04.2020
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PERFORMING OPERATIONS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TESTING; TRANSPORTING; VEHICLES IN GENERAL

Disclosed are a location correcting apparatus of a vehicle and a method thereof. According to the present invention, the location correcting apparatus comprises: a GPS reception unit receiving GPS information from a GPS satellite; an RTK reception unit receiving RTK information from an RTK system; a vehicle speed detection unit detecting the speed of a vehicle; and a control unit calculating a current location of the vehicle based on the GPS information received from the GPS reception unit, calculating a target correction value for correcting the location and the posture of the vehicle by tuning a covariance matrix of the Kalman filter based on the RTK information received from the RTK reception unit, and then adjusting a correction value in accordance with the vehicle speed to output an estimated correction location. 본 발명은 차량의 위치 보정 장치 및 그 방법이 개시된다. 본 발명의 차량의 위치 보정 장치는, GPS 위성으로부터 GPS 정보를 수신받는 GPS 수신부; RTK 시스템으로부터 RTK 정보를 수신받는 RTK 수신부; 차량의 차속을 감지하는 차속감지부; 및 GPS 수신부로부터 수신된 GPS 정보를 기반으로 차량의 현재 위치를 산출하고, RTK 수신부로부터 수신된 RTK 정보를 기반으로 칼만필터의 공분산 행렬을 튜닝하여 차량의 위치와 자세를 보정하기 위한 목표 보정값을 산출한 후 차속에 따라 보정값을 조정하여 추정된 보정위치를 출력하는 제어부;를 포함하는 것을 특징으로 한다.