自动车辆定位调度系统的研究

Study of Automatic Vehicle Location and Dispatching System

集群移动通信系统虽然具有话音通信调度能力但是缺乏用户定位导航能力，ＧＰＳ（全球定位系统）虽然具有导航定位能力但是缺乏用户之间的通信能力．因此，如何将ＧＰＳ与集群通信系统有机结合，取长补短，组成动态的自动车辆定位调度系统具有十分重要的意义．作者在研究Ｍｏｔｏｌｏｒａ智慧网的基础上，分析了实现自动车辆定位调度系统需要解决的几个技术难题：识辨和提取控制信令和话音信息，自动建立ＧＰＳ数据链路以及信道负载平衡等，并给出了解决方案．实践结果已证明了这些方案是可行的．

Trunked mobile radio system has the capacity of dispatching through voice, but dose not have the capacity of location and navigation. GPS (Global Positioning System) has the capacity of location and navigation but dose not have communication links between users. So, it is of signification to realize automatic vehicle location and dispatching system, which remedy their defects and absorb their quintessence, by organically integrating trunked radio system with GPS . Based on the analysis about Motolora's SmartNet trunked radio system, the authors point out some key techniques to realize the system. Those are how to distinguish control signal and voice for establishing stable GPS data link and balance channel load etc.The experiment results have proved out our means.