As the use of vehicle route application and LBS (location based service) are fast grew, the importance of maintaining road network data is also increased. To maintain road data accuracy, we can collect road data by driving real roads with probe vehicle, or using digital image processing for the extraction of roads from aerial imagery. After compare the new road data to current database, we can update the road database, but that job is mostly time and money consuming or can be inaccurate. In this paper, an updating method of using GPS (global positioning system) enabled cell phone is proposed. By using GPS phone, we can update road database easily and sufficiently accurately.

Abstract
 1. 서론
 2. 관련 기술
  2.1 GPS
  2.2 GPS 휴대폰의 국내외 현항
 3. 연구 내용
  3.1 내비게이션 서비스를 사용하지 않는 경우
  3.2 일반 GPS 휴대폰을 사용하여 내비게이션 서비스를 사용하는 경우
  3.3 내비게이션 전용 휴대폰을 사용하여 내비게이션 서비스를 사용하는 경우
 4. 결론
 참고문헌

• 장영관(강원대학교 산업경영공학과) | Young Kwan Jang