5G for the Support of Public Safety Services

Wireless Personal Communications - The Internet of Things (IoT) is the most recent Internet evolution that integrates many smart devices, such as constrained devices, smart tablets, smart vehicles,...     

基于5G的车联网体系架构及其应用分析

文中立足于车联网及移动通信技术的发展情况,简略阐述了研究背景,介绍了基于5G移动通信技术的车联网体系架构,并以我国某智慧园区为例,从智慧路况监测、远程驾驶、高精度定位、车联网业务平台主系统以及交通信号优化等方面着手,对其应用实例进行了详细分析,旨在为相关研究人员提供参考。     

IEEE-1451-based smart module for in-vehicle networking systems of intelligent vehicles

As vehicles become intelligent for the convenience and safety of drivers, in-vehicle networking (IVN) systems and smart modules are essential components of intelligent vehicles. However, there are obstacles for the wide acceptance of smart modules. First, there exist numerous IVN protocols that a smart module should be able to support. Second, the whole smart module has to be replaced when only the sensor of the module fails. In order to overcome these obstacles, a smart module is implemented as two units; one responsible for network communication and the other for sensor/actuator operations. In addition, the modules use an interface between the two units as defined by the IEEE 1451 standard. This paper presents a design of the smart module based on the IEEE 1451 standard along with the experimental evaluation for time delays.     

Dynamic traffic congestion pricing and electric vehicle charging management system for the internet of vehicles in smart cities

The integration of the Internet of Vehicles (IoV) in future smart cities could help solve many traffic-related challenges, such as reducing traffic congestion and traffic accidents. Various congestion pricing and electric vehicle charging policies have been introduced in recent years. Nonetheless, the majority of these schemes emphasize penalizing the vehicles that opt to take the congested roads or charge in the crowded charging station and do not reward the vehicles that cooperate with the traffic management system. In this paper, we propose a novel dynamic traffic congestion pricing and electric vehicle charging management system for the internet of vehicles in an urban smart city environment. The proposed system rewards the drivers that opt to take alternative congested-free ways and congested-free charging stations. We propose a token management system that serves as a virtual currency, where the vehicles earn these tokens if they take alternative non-congested ways and charging stations and use the tokens to pay for the charging fees. The proposed system is designed for Vehicular Ad-hoc Networks (VANETs) in the context of a smart city environment without the need to set up any expensive toll collection stations. Through large-scale traffic simulation in different smart city scenarios, it is proved that the system can reduce the traffic congestion and the total charging time at the charging stations.     

Performance Evaluation of AOMDV on Realistic and Efficient VANet Simulations

Wireless Personal Communications - The digital transmission amongst vehicles and roadway equipment is necessary for the realization of smart transportation systems. Vehicular ad-hoc network (VANet)...     

Cooperative link scheduling for RSU-assisted dissemination of basic safety messages

Wireless Networks - The reliable and real-time dissemination of Basic Safety Message (BSM) among smart vehicles has attracted much attention in both academia and industry, where a group of adjacent...     

A Road Monitoring Approach with Real-Time Capturing of Events for Efficient Vehicles Safety in Smart City

Wireless Personal Communications - Nowadays, Internet-of-things (IoT) provides various services to the users by equipped with the smart devices. In this regard, the next generation of vehicles...     

基于单片机控制的简易自动寻迹小车设计

本文介绍了一种基于单片机控制的简易自动寻迹小车设计,包括小车系统构成软硬件设计方法。该小车以AT89C51为控制核心,利用红外光电传感器对前方障碍物信息及路面信息进行采集,并将障碍物检测信号和路面检测信号反馈给单片机。单片机对采集到的信号予以分析判断,及时控制驱动电机以调整小车转向,从而使小车能够沿着黑色导引带自动行驶,实现小车自动寻迹的目的。该技术可以应用于无人驾驶机动车,无人工厂、仓库、服务机器人等领域。     

大数据背景下智慧城管数据采集策略分析

随着我国城市的快速发展,城市管理问题也日益凸显,如夜市摊贩问题、交通拥堵问题、道路破损问题、施工工地问题、交通路灯故障问题、车辆随意停放问题、城市清洁问题等,这些问题会影响到城市的正常运转,给市民生活造成不良体验,从而受到社会的广泛关注。基于此,文中首先简要介绍了智慧城管的相关概念,然后详细讨论了传统数据采集和大数据下的智慧城管相关策略,阐述了智慧城管的相关应用。     

Sustainable Framework for Smart Transportation System: A Case Study of Karachi

In this paper, a framework of smart transportation system is proposed, aiming to address the transportation problem in Karachi city. In modern day world, the mega cities and urban areas are on the edge of transformation into smart cities. With the advancement of engineering and technology, smart cities are designed to integrate and utilize these scientific innovations to provide smart solutions and social innovations for sustainable infrastructure, thus they are able to provide its resident highest quality of life by utilizing its resources effectively. One of the major application of smart cities is the Smart Transportation System, which provides safer, quick, environment friendly service to the residents. Thus, this study highlights the current traffic situation of Karachi and propose a framework to transform it into a smart transportation system. In order to have a smart transportation system, it is necessary to have in-depth knowledge and information about the city dynamics and its traffic related issues. Therefore, this study also highlights current traffic situation of Karachi, its road conditions and capacity, vehicles condition, alternate mean of transport (other than road-based system) and its present condition, and finally proposes a framework to develop a smart transportation system while keeping in mind the aforesaid traffic problems.

     

基于OPS智能车载终端的设计

提出一种新型的基于里程定位的智能车载终端系统。通过将里程和站点结合起来,实现自动语音报站的目的,通过GPRS将智能车载终端和地理信息系统结合,能够对定线行驶的车辆进行实时监控,了解车辆的运行状态,车辆可以与中心之间互相发送信息,从而实现智能化管理的目的。此终端还预留出软硬件接口,可以将IC卡收费系统融合起来,将车辆的收费记录通过GPRS传回中心,就可以不再需要人工采集收费数据。给出了整个智能车载终端系统的组成、设计和实现技术。     

初探破局电动汽车发展瓶颈新思路

制约电动汽车普及的因素很多,其中动力电池及其续驶里程已经成为关键的瓶颈。本文提出了车电分离、统一电池标准、换电"云能源"管理、智能电网与电动汽车互动等一系列思路,探索电动汽车普及的新途径。     

基于物联网的智慧校园安防管理系统的设计与应用——以常德职业技术学院为例

为满足学校日益迫切的智慧安防需求,文中依托物联网技术,结合智能感知、智能辅助、智能分析和决策技术,精准分析了校园内人员、车辆身份和行动路径,支持智能检索和入侵报警,促使以视频监控为主体的传统安防系统向以安全保障为主体的智慧安防系统转变,最终构建校园全域安防网络,覆盖校园重点场所,希望能为高职院校建设智慧安防管理系统提供参考。     

从智能网联1.0到智能网联2.0：面向双智的实时数字孪生城市构建

从智能网联（ICV）的发展现状及面临的行业挑战出发,提出了智能网联1.0和智能网联2.0的概念以及相应的发展思路。随后介绍了如何通过泛V2X实现智能网联1.0阶段突破以及通过车城网平台实现双智,并提出智能网联2.0的愿景是构建基于智能网联的交通实时数字孪生以及面向双智的实时数字孪生城市。最后,着重介绍了面向双智的实时数字孪生城市的构建方法以及相关的创新实践。     

Making (in) the smart city: The emergence of makerspaces

Critical approaches to the smart city concept are used to begin highlighting the promises of makerspaces, that is to say, those emerging urban sites that promote sharing practices; exercise community-based forms of governance; and utilize local manufacturing technologies. A bird’s-eye-view of the history of makerspaces is provided tracing their roots back to the hacker movement. Drawing from secondary sources, their community-building, learning and innovation potential is briefly discussed. Makerspaces, this essay argues, can serve as hubs and vehicles for citizen-driven transformation and, thus, play a key part in a more inclusive, participatory and commons-oriented vision of the smart city.     

电动汽车有序充放电控制研究与应用综述

随着政府对电动汽车的重视,电动汽车规模日益增大,电动汽车的充放电有序控制不仅减小对电网的负面影响,还能将其应用于系统的调峰,调频,事故备用等方面。本文介绍了电动汽车充电对电网影响的研究方向,从时间维度和空间维度两方面总结了目前采用的研究方法和存在的问题,并总结了常用的优化方法、目标函数和重要的约束条件。指出完善电价激励机制,实现智能充电导航,开发便捷友好的控制终端是有序充电控制未来的研究方向。     

基于智能手机的机动车电子身份认证比对装置

针对传统机动车身份识别系统设备体积较大、不方便携带和移动的问题,文中开发了基于智能手机的机动车电子身份比对装置,其由微型便携超高频RFID读卡器、智能手机、手机APP及后台数据服务器共同组成。该装置充分利用了智能手机的拍摄、数据处理和通讯功能,配合微型RFID读卡器使用,具有方便携带、可同时完成机动车电子和传统号牌双重识别、可实时联网完成数据比对、价格低廉、工作稳定等特点。同时方便稽查人员随身携带使用,可完成对机动车辆身份的流动稽查、违章违法查处、盗抢套牌车辆查处等工作。     

A safety critical network for distributed smart traffic signals

Distributed control can improve and expand the current methods of intersection management by using a different infrastructure, having sensors to provide detection of pedestrians and vehicles and using a smart control process that can use this information. Since January 2006, researchers at the University of Idaho's National Institute for Advanced Transportation Technology (NIATT) have investigated methods of applying network-based distributed control in the operation of traffic signal lights. Public safety is a top priority and it is necessary to ensure safe and reliable operation of the control system for industry and public acceptance. In this paper, we describe a current traffic controller system and then discuss the hardware and software architecture for implementing a safety critical network using a time-triggered protocol for distributed smart traffic signals.     

一种基于5G的开放式智慧V2X云平台

在移动互联网时代,车联网的出现将使汽车变成下一个移动终端,流量红利将因此会从智能手机分流到汽车。中国移动将紧跟时代大趋势,在车联网方面开展5G网络部署工作,加快5G在车联网、智慧交通方面的应用,形成标杆,加快项目复制,抓住车联网流量及相关5G新基建红利。在此背景下,文章提出了一种基于5G的开放式智慧车路协同云平台,可从安全、效率、服务三方面提升高速智慧化水平,解决路侧设备信息化转型问题。