electronic chart database

This platform supports internet/ intranet and can realize the share of electronic chart database.

该平台支持Internet/Intranet，能够实现电子海图数据库的共享。

Also, we designed the data format of digital Notice to Mariners. With the technology of network and database, we developed the digital Notice to Mariners distribution system, which lay down the technology base for automatic correction of electronic chart.

本文研究了纸质航海通告的数字化方法，设计了数字航海通告的数据格式，利用现代网络和数据库技术，研制了数字航海通告发布系统，为电子海图的自动改正奠定了技术基础。

System Electronic Chart ( SENC) is the direct source of data for ECDIS. Electronic Chart database of user format is the base of SENC.

系统电子海图（SENC）是电子海图显示与信息系统的直接数据来源，而用户格式的电子海图数据库是系统电子海图的基础。

To consist of electronic chart , database software, such as ship characteristics library, etc.

包括图形软件如电子海图 、 数据库软件如船舶数据库等.

Taking the chart data of format S-57 as the source data, in this paper we utilize the database management system Oracle 9i to build up electronic chart database, and also accomplish quick searching for the SENC data through R-tree spatial index technology.

本文以S&57标准格式的海图数据为数据源，利用Oracle9i数据库管理系统，建立电子海图数据库，并借助R树空间索引技术，实现电子海图数据的快速检索。

As the basic of electronic chart application system, ECDB ( Electronic Chart Database) decides the function and performance of the system.

电子海图数据库是电子海图应用系统的基础，它决定了电子海图应用系统的功能和性能。