摘要
LBS应用已经从以“数据”为核心向以“服务”为核心转化,与具体应用领域的需求也结合得越来越紧密。然而,已有的位置服务系统主要基于静态数据,服务缺乏实时性,尤其在导航服务应用中,出行者对动态交通信息的需求越来越明显。从提供动态信息的移动位置服务的角度出发,以提供个人导航服务所需的交通信息为例,设计了一个基于动态交通信息的移动位置服务系统,并在此基础上在手机上实现了一个基于J2EE、J2ME和GPRS无线通信技术的原型系统。
The emphasis of Location-Based Services(LBS) has switched from data-centric to service-centric and has more specific applications.However,most of the former LBS systems are developed based on static data instead of real-time or dynamic information.As a result,some of the services,especially in personal navigation,are not so pleasant.ln order to tackle this problem,the paper designs a LBS system based on dynamic traffic information and successfully deploys it on a Java mobile phone,which receives LBS from a server via GPRS.
出处
《计算机工程与应用》
CSCD
北大核心
2007年第7期108-110,239,共4页
Computer Engineering and Applications
基金
北京市重点实验室共建项目基金(No.SYS10001402)
关键词
位置服务
动态交通信息
交通流
交通事件
Location-Based Services (LBS)
dynamic traffic information
traffic flow
traffic incident