IP多媒体子系统(IMS)作为固定接入和移动接入的统一核心控制网络，采用控制和承载、控制和业务相分离的机制，网络能力得到很大增强。
The IP Multimedia Subsystem (IMS), as the core control for fixed and mobile access, enhances network capabilities, by separating control functions from bearer and services.
该系统由承载车、计算机、图像采集子系统、地理信息采集子系统、距离定位子系统等组成。
This system is made up of vehicle, computer, image collection subsystem, image information collection subsystem and locating subsystem.
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