항만 터미널 내 차량의 효율적 풀링을 위한 실시간 위치 측정 시스템 설계 및 구현 = Design and Implementation of Real Time Locating System for Efficient Vehicle Pooling in Port Terminal

다국어 초록 (Multilingual Abstract)

In a port terminal, containers are stored and transshipped by yard tractors and crane vehicles. For operation efficiency of the terminal, location information of these vehicles is an essential factor. However, most of port terminals try to estimate location of these assets using indirect methods such as event tracking of shipping or unshipping containers. Because these kinds of events are rarely occurred, location of the event includes seriously locating error compared to a real location of vehicle. In this paper, we propose a real-time asset tracking system to obtain accurate and reliable location of terminal assets. The proposed system overcomes a location estimation error caused by container stacks which interrupt wireless communication. In order to mitigate uncertainty and increase accuracy of location estimation, we designed hardwares and multi-step locating system to resolve additional preblems. We implemented system components, and installed these at a port environment for evaluation. The result shows superiority of the system that the accuracy is approximately 5.87 meters (CEP).

참고문헌 (Reference)

1 김광열, "위치 기반 서비스의 최근 동향" 28 (28): 2011

2 Fontana, R.J., "Ultra-wideband precision asset location system" 2002

3 H. Choi, "Two-Step Locating System for Harsh Marine Port Environments" 170-176, 2011

4 Y. Jung, "Multi-layer Real Time Locating System for a Port Logistics Environment" 106-107, 2011

5 "IEEE Standard 802.15.4a"

6 Y. Chan, "Exact and Approximate maximum Likelihood Localization Algorithms" 55 (55): 10-16, 2006

7 조현태, "Design and implementation of a smart tag system for IT-based port logistics" SPRINGER-VERLAG BERLIN 4159 : 32-43, 2006

8 S. Son, "Design and implementation of a real-time locating system over IEEE 802.15.4a radio for port logistics" 1183-1188, 2010

9 Bandara, U., "Design and implementation of a Bluetooth signal strength based location sensing system" 2004

10 S. Han, "An efficient localization scheme for a differential-driving mobile robot cased on RFID system" 54 (54): 3362-3369, 2007