SHANDONG SCIENCE ›› 2018, Vol. 31 ›› Issue (3): 8-18.doi: 10.3976/j.issn.1002-4026.2018.03.002

• Oceanographic Science, Technology and Equipment • Previous Articles     Next Articles

Research on representation and transmission mode of ocean observing spatio-temporal data oriented to distributed sharing

SONG Miao-miao, LI Wen-qing, WANG Wen-yan, LIU Shi-xuan, WANG Xiao-yan, MIAO Bin   

  1. Shandong Provincial Key Laboratory of Marine Monitoring Instrument Equipment Technology, National Engineering and Technological Research Center of Marine Monitoring Equipment, Institute of Oceanographic Instrumentation,Qilu University of Technology (Shandong Academy of Sciences) , Qingdao 266001, China
  • Received:2017-12-05 Online:2018-06-20 Published:2018-06-20

Abstract:

By focusing on the bottleneck of network transmission performance in the distributed sharing of ocean spatio-temporal monitoring data, the representation and transmission mode in distributed cloud computing environment was proposed to establish an efficient service-oriented sharing framework for ocean spatiotemporal data. While adopting GML, KML and GeoJSON to encode ocean observing data, a data transmission mode based on real-time compression was proposed. The applicability of compression algorithms to ocean monitoring data enhanced the efficiency of data real-time transmission. Finally, based on the Ali cloud computing platform, a distributed GIS system for marine applications was designed and deployed as the testbed, and systematic experiments were conducted. The experimental results reveal that using the combination of GeoJSON and Deflate-6 / GZIP to establish the ocean observing spatiotemporal data representation and transmission mode shows better applicability and more outstanding performance advantages in distributed sharing and integration system.

Key words: ocean observing data, web geographical information system (GIS), distributed sharing, spatio-temporal data representation, data compression for real-time transmission

CLC Number: 

  • TP311.56