Study of the ENC reduction considering Update

Shim, Woo-Seong; Park, Jae-Min; Suh, Sang-Hyun

Journal of Navigation and Port Research 2003;27(4):425-430.
Published online September 30, 2003.

갱신을 고려한 전자해도 소형화 연구

심우성, 박재민, 서상현

Study of the ENC reduction considering Update

Woo-Seong Shim, Jae-Min Park, Sang-Hyun Suh

Abstract

The Satellite navigation system is widely used for identifying a user’s position regardless of weather or geographic conditions and also make effect on new technology of marine LBS(Location Based Service), which has the technology of geographic information such as the ENC. Generally, there are conceivable systems of marine LBS such as ECDIS, or ECS that use the ENC itself with powerful processor in installed type on ships bridge. Since the ENC is relatively heavy structure with dummy format for data transfer between different systems, we should reduce the ENC to small and compact size in order to use it in mobile platform. In this paper, we assumed that the mobile system like PDA, or Webpad can be used for small navigation or information system in marine field. We considered the reduction of the ENC size to make them fit well to small capability of mobile platform. However, the ENC should be updated periodically by update profile data produced by HO. If we would reduce the ENC without a consideration of update, we could not get newly updated data furthermore. As summary, we studied considerations for ENC reduction with update capability. It will make the ENC be useful in many low performance platforms for various applications.

Key Words: Data Reduction;ENC;Mobile Platform;Updating;LBS