Location-based services means that the mobile terminals use all sorts of positioning technology for the current position information, then transfer these information to service providers through the wireless communication, and service provider provides the personalized service according to the users' location information and context information. This paper classified the location-based services according to different aspects of service, then analyzed the key technologies, including the positioning technologies, information transmission technologies and the position indexing technologies, then summarized the typical application of service based on position information, and finally pointed out the existing problems.
国家科技期刊平台
NSTL
万方数据
维普
