车联网会成为一种趋势吗?以后会全面普及吗?

2025-04-06 22:13:22
推荐回答(1个)
回答(1):

车联网(Internet of Vehicles)是由车辆位置、速度和路线等信息构成的巨大交互网络。通过GPS、RFID、传感器、摄像头图像处理等装置,车辆可以完成自身环境和状态信息的采集;通过互联网技术,所有的车辆可以将自身的各种信息传输汇聚到中央处理器;通过计算机技术,这些大量车辆的信息可以被分析和处理,从而计算出不同车辆的最佳路线、及时汇报路况和安排信号灯周期。
  感知层,承担车辆自身与道路交通信息的全面感知和采集,是 车联网的神经末梢,也是车联网“一枝独秀”于物联网的最 显著部分。 通过传感器、RFID、车辆定位等技术,实时感知 车况及控制系统、道路环境、车辆与车辆、车辆与人、车辆 与道路基础设施、车辆当前位置等信息,为车联网应用提 供全面、原始的终端信息服务。 网络层,通过制定专用的能够协同异构网络通信需要的网络架构和协议模型,整合感知层的数据;通过向应用层屏蔽 通信网络的类型, 为应用程序提供透明的信息传输服务; 通过对云计算、虚拟化等技术的综合应用,充分利用现有 网络资源,为上层应用提供强大的应用支撑。

  应用层,车联网的各项应用必须在现有网络体系和协议的基础 上,兼容未来可能的网络拓展功能。 应用需求是推动车联网技术发展的源动力,车联网在实现智能交通管理、车辆安全控 制、交通事件预警等高端功能的同时,还应为车联网用户 提供车辆信息查询、信息订阅、事件告知等各类服务功能。
  安全能力,车联网的通信特点制约着车联网信息的安全性和通信能力。 安全能力为车联网提供密钥管理和身份鉴别能 力,确保入网车辆信息的真实性;提供信息的安全保护功 能,保证数据在传输过程中不被破坏、篡改和丢弃;提供准 确的位置信息,实现对车辆的定位和路径回溯;提供精确的时钟信息, 保证车联网实时业务尤其是安全应用在时间上 的同步。 管理能力,作为车联网的控制中心,管理能力提供对入网车辆信 息和路况信息的管理能力,实现车辆之间、车辆与道路基 础设施之间以及不同网络之间的自由、无缝切换;实现车 联网通信的 QoS 管理,根据不同的入网车辆信息及业务类型,提供不同的网络优先级服务。
  车联网的特点
  “车联网”时代的智能汽车有以下几个特点:第一,车与车之间能够保持相对固定的距离,可以实现零碰撞;第二,车与车之间的组队是随机进行的,根据车主的目的地,通过GPS定位和车辆之间的自动沟通,车与车之间可以临时组队或离队,提高交通效率。

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