【摘要】 探讨了第三代移动通信技术(3G,3rd-Generation)无线网络下的移动用户定位技术。一方面是该技术中的上游技术中的空间数据服务系统的设计,实现了系统数据架构模块、业务层模块、接口模块的功能;另一方面是便携式移动定位终端,将全球定位系统(GPS,Global Positioning System)以模块化的方式进行了嵌入,实现与上游中的数据库支持技术中的接口模块的设计与实现。在设计中考虑将GPS定位功能与3G网络支持下的定位功能进行结合,既可以单独使用也可以综合应用,这进一步提高了该设备的应用范围,这对于设备功能的强化是一种有益的尝试。更多还原

【Abstract】 The 3G wireless network location technology for mobile users is explored.On one hand,the spatial data service system in its upper-reach technology is designed,and functions of the system data structure module,service layer module,the interface module are implemented,on the other hand,the portable mobile positioning terminal is embedded with GPS in a modular mode,thus to achieve the upper-reach support technology in the design and implementation of the interface module.Both the GPS positioning function and the positioning function supported by 3G network are considered in the design,thus the single use or integrated application of these technologies could be realized.This could further increase the scope of device application,and is also a beneficial try for enhancement of the device functions.更多还原