基于卫星定位系统（GPS、北斗等）与移动通信系统、地理信息系统和计算机应用技术等高科技手段，通过“3G”技术（GPS、GSM、GIS）与计算机技术实现合理快速的远程车辆跟踪、监控、调度系统。

CTDC offers real-time vehicle tracking and monitoring, ensuring security and efficiency in transportation. The service works through a satellite system drawing on the power of “3G” technologies (GPS, GMS, and GIS), Compass Satellite Navigation, and mobile communications.