한국컴퓨터정보학회논문지 (Journal of the Korea Society of Computer and Information)

한국컴퓨터정보학회 (Korean Society of Computer Information)
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도로 네트워크 환경에서 이동 객체의 현재 위치 관리를 위한 효율적인 색인 기법

Effective indexing of moving objects for current position management in Road Networks

  • 김태규 (인하대학교 컴퓨터정보공학과) ;
  • 신숭선 (인하대학교 컴퓨터정보공학과) ;
  • 정원일 (호서대학교 정보보호학과) ;
  • 배해영 (인하대학교 컴퓨터정보공학과)
  • Kim, Tae-Gyu (Dept. of Computer Science & Information Technology, Inha University) ;
  • Shin, Soong-Sun (Dept. of Computer Science & Information Technology, Inha University) ;
  • Chung, Weo-Nil (Department of Information Security, Hoseo University) ;
  • Bae, Hae-Young (Dept. of Computer Science & Information Technology, Inha University)
  • 투고 : 2011.07.08
  • 심사 : 2011.08.13
  • 발행 : 2011.10.31
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초록

최근 위치 확인 기술과 이동 통신의 발전에 따라 이동 객체의 위치에 기반한 서비스의 요구가 증가하고 있다. 이에 따라, 이동 객체의 위치 정보를 관리할 수 있는 다양한 색인에 대한 연구가 진행되고 있다. 유클리드 공간의 색인은 이동의 제약이 없기 때문에 이동의 제약이 강한 실세계에 적용하기 어렵다. 도로 네트워크 공간의 색인의 경우에는 인접도로의 연결 정보 알기 위해 추가적인 비용이 드는 문제점이 있다. 또한, 기존의 연구들은 건물, 병원과 같은 위치가 고정되어 있는 객체는 고려하지 않고 있다. 본 논문에서는 도로 네트워크 공간에서 이동 객체의 현재 위치를 효율적으로 관리하기 위한 색인을 제안한다. 제안하는 색인 구조는 도로망을 격자로 분할하여 도로 연결 정보를 색인 구조에포함하였고 고정 객체를 위해 별도의 색인을 유지한다. 그리고 실험을 통하여 기존의 기법보다 제안 색인의 성능이 우수함을 보인다.

Recently, advances in mobile communication and location identifying technology of the moving object is evolving. Therefore, the location-based services based on request for service have increased and a variety of the indexing for the position management of moving objects has been studied. Because the index based on Euclidean space are no restriction of movement, it is difficult to apply to the real world. Also, there is additional cost to find adjacent road segments in road networks-based indexing. Existing studies of fixed static objects such as buildings or hospitals are not considered. In this paper, we propose an efficient road networks-based indexing for management of current positions. The proposed indexing partitions road networks by grids and has integrated road connection informations and manage separated extra indexing for fixed static objects. Through the experiment, we show that the proposed indexing based on road networks improves the performance of operation for search or update than existing indexing.

키워드

참고문헌

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피인용 문헌

  1. Grid-based Semantic Cloaking Method for Continuous Moving Object Anonymization vol.18, pp.3, 2011, https://doi.org/10.9708/jksci.2013.18.3.047