针对城市车辆的剧增引发的交通拥堵、交通事故频发、停车困难等一系列社会问题,设计了一种基于中继技术的车载无线通信系统.通过将视作超级传感器节点的行驶中的车辆之间建立短距离无线通信,依靠车辆之间的协作通信,实现包括瞬时地理位置、道路拥堵、车辆预警等信息之间的交互.利用中继传输保证车辆之间通信的连续性和信息的共享与传播,采用信息优先级别划分的形式避免多个车辆选择同一中继节点的"中继碰撞"问题,实现车辆预警、辅助驾驶、交通安全等.基于中继技术的车载无线通信系统是实现车联网的重要保证.%Aiming at solving a series of social problems caused by the rapid increase of urban vehi-cles,such as traffic jams,frequent traffic accidents and parking difficulties,a vehicle radio communica-tion system based on relay technology is designed.This system establishes short distance wireless commu-nication between vehicles running on super sensor nodes by means of cooperative communication, inclu-ding instantaneous geographic location, road congestion, vehicle warning and other information interac-tion.The relay transmission technology guarantees the communication continuity and effective information sharing and dissemination among vehicles.Classification of information priority is adopted to avoid any sit-uation of "relay collision" while many vehicles select the same relay node. With functions of vehicle warning, auxiliary driving and traffic safety improvement, this vehicle wireless communication system based on relay technology is an important guarantee of actualizing car network.
展开▼
