DGPS is an advanced version of the Global Positioning System (GPS), which provides improved location accuracy (from 15 meters to about 1-3 cm).
Growth of international trade prompted container terminal operators to improve infrastructure and operational efficiency. This optimization has affected development of container handling equipment, assets management, and automation of processes.
Global position detection system works similarly to GPS. It uses a set of fixed ground-based reference stations to cover difference between GPS satellite system indications and real-time position. Position detection systems are used by terminals’ supporting equipment, such as Straddles, RTG’s, RMG’s, Reach-Stackers, and others.
Every container movement is recorded with corresponding equipment that helps to allocate objects on yard for subsequent operations (such as loading and unloading). Thanks to a Global Positioning System (GPS), operator handling equipment has an easier time placing containers in storage spaces, depots, and yards. The activity calculation used in DGPS helps transmit all necessary data to TOS (Terminal Operating System). That way, operators can track every container's whereabouts in terminal (even if someone moved it without permission).
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