Open AccessA Position-coding Terminal Device for Ships Based on BeiDou Navigation Satellite System
Author(s) -
Shihe Xin,
Weifeng Zhou
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/693/1/012043
Subject(s) - computer science , encoding (memory) , coding (social sciences) , position (finance) , terminal (telecommunication) , real time computing , key (lock) , combing , satellite , computer hardware , telecommunications , artificial intelligence , engineering , geography , operating system , statistics , mathematics , cartography , finance , aerospace engineering , economics
Considering massive amounts of location data will consume excessive memory and inefficient when performing a spatial query, a new ship position-encoding device was designed by combing the navigation, positioning and communication functions of the Beidou navigation satellite system and Geohash coding technology. An efficient index algorithm based on Geohash encoding was applied to improved efficiency, especially to solve the problem that massive ship position data occupies massive amounts of memory resources when searching for rescue ships near a wrecked ship, improve rescue efficiency, reduce energy consumption, realize high device utilization, one-key multi-use, and higher automation. Experimental results prove the ship position encoding method is better than the traditional device in terms of the spatial query of nearby ships and reducing the storage space consumption.