摘要
介绍了利用JAVA技术构建一种GPS移动定位服务系统的方法。GPS接收终端接收GPS卫星发送的定位数据,由基于J2ME的移动计算系统采用差分GPS算法进行解析,并通过无线GPRS网络向定位服务器提交位置查询,基于J2EE体系的定位服务器经过计算和数据查询,将结果返回给移动系统,由移动系统进行位置图形显示或进行进一步的处理,从而构建了一套完整的高精度移动定位服务系统。
A method of constructing GPS-based positioning services system by means of JAVA technology is introduced in this paper. The position data, which are sent from GPS satellites, are received by GPS receiving terminal and are analyzed by mobile computing client developed on J2ME in accordance with the differential GPS algorithm. The client submits special position querying information to position server in way of wireless GPRS network. After computing and data querying, the server developed by J2EE returns results to the mobile device. Then, the mobile computing client displays the position map or carries out further processing. All of these form a highly precise location-based services system.
出处
《重庆建筑大学学报》
EI
CSCD
北大核心
2005年第2期116-120,共5页
Journal of Chongqing Jianzhu University
关键词
移动定位
JAVA
移动计算
无线网络
mobile positioning
JAVA
mobile computing
wireless network