Data Model of Updating Nautical Chart Based on Integrative Idea
Minghui Li
Abstract
Minghui Li
Abstract
Nautical chart updating is always the key and hot problem in field of chart production and application.Based on analyzing the characteristic of chart data in China,the integrative updating mode of chart and data model of updating nautical chart were discussed,and then data structure was designed using SQL Server System,the key technique of integrative updating chart was studied through the updating data.
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Nautical chart updating is always the key and hot problem in field of chart production and application.Based on analyzing the characteristic of chart data in China,the integrative updating mode of chart and data model of updating nautical chart were discussed,and then data structure was designed using SQL Server System,the key technique of integrative updating chart was studied through the updating data.
Key concepts: Chart, Nautical chart, Key (lock), Computer science, Field (mathematics), Data mining, Mode (computer interface), Statistics