关键词: 在线地图服务, 基于位置的服务, LBS 支撑平台, LBS-p 平台

Abstract:

With the development of 3G and LBS (location based service), it tends to provide online map services and other GIS (geographical information system) services, so as to allow users accessing them on demand. This paper presents LBS-p, a LBS supporting platform, which provides online map service with Byte-Map. Byte-Map is a lightweight binary vector mobile map format using one-byte coordinates. LBS-p consists of LBS-p mobile and LBS-p server. LBS-p mobile is a Java ME (massage service) application running on the mobile terminal, which dedicates to the request, management and display of mobile map data. LBS-p server consists of Byte-Map data pre-processing mechanism, Byte-Map data providing module and LBS-oriented GIS service module. Byte-Map data pre-processing mechanism processes the original map data (i.e. GML data) and produces Byte-Map data for LBS-p. Byte-Map data providing module provides Byte-Map data to the mobile client, and LBS-oriented GIS service module focuses on provision of additional GIS services needed by LBS.

Key words: online map service, location based service (LBS), LBS supporting platform, LBS-p