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http://dx.doi.org/10.6109/jkiice.2007.11.3.627

Location Tracking System for Container Trailer Using Ubiquitous Sensor Networks  

Park, Jong-Hyun ((주)원신스카이텍)
Choo, Young-Yeol (동명대학교 컴퓨터공학과)
Abstract
This paper describes position tracking system of a container trailer approaching to a gantry crane for loading or unloading a container into or from a ship, respectively. Proposed position tracking system informs the trailer driver of right position to stop the car under a gantry crane. To measure the location of a trailer, we used Cricket Mote modules which adopted RF and ultrasound technology. We present an elaborate method to improve position errors occurring at sensing and calculate three dimensional position by triangulation along with how to reduce location tracking interval for real-time monitoring. The location information was transmitted to a Personal Digital Assistant (PDA) periodically through Bluetooth communication for guidance of the trailer driver. In indoor and outdoor tests, position errors were less than 3 cm and location tracking interval was 0.5 second on average.
Keywords
wireless sensor network; Location Tracking; Bluetooth; Automatic Container Terminal;
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  • Reference
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