数字孪生在道路工程中的应用综述

对数字孪生的基本概念、技术内涵进行了综述,从设计、施工和运维3个不同生命周期阶段对数字孪生技术在道路工程中的应用进行了调研.结果表明:目前数字孪生技术在设计和施工阶段有一定程度的应用,而在运维阶段应用较少.缺少标准规范体系、数据和平台架构不统一、信息化和数字化程度不足以及忽视全生命周期的应用是阻碍数字孪生技术在道路工程中深度应用的瓶颈.因此,规范顶层设计与标准体系、拓展BIM技术的应用以及加强数据的集成、开放和共享是进一步推进数字孪生技术应用的发展方向.

交通拥堵的治本之道——城市不间断通行道路交通系统介绍

介绍了一种"城市不间断通行道路交通系统"。它是一个能够确保不会堵车的、高效快捷的智能化道路交通系统。这种交通系统没有红绿灯,车辆通行全过程不用停顿等候,排除了各种车辆通行的干扰因素,去除了各种交通瓶颈,避免了不同流向车流之间的交叉干扰,道路通行能力提高6倍以上,能自动保障公交、大中客车全天候畅行,能自动控制道路车流量。在这个系统中,还包括一个快捷高效的公交系统,确保乘坐公交上下班,主城区20 km路程包括换乘时间只需30 min。

中企海外智慧化矿山建设面临问题及应对措施

随着计算机技术、微电子技术、信息技术和网络技术的迅速发展,中企海外智慧化矿山建设势在必行,同时智慧化矿山的建设也将成为海外矿山企业提高核心竞争力的重要途径。针对中资企业海外矿山的基本特征以及智慧化建设的现状,阐述了海外智慧化矿山建设存在的问题,并由此提出相关的应对措施。

Relay navigation strategy study on intelligent drive on urban roads

In order to solve navigation problem of intelligent vehicle driving on urban roads and to achieve the navigation in intersection area, intersection transition area and section area. The relay navigation strategy and algorithm can solve the navigation problem of intelligent vehicle driving in typical urban roads such as intersection area, intersection transition area and section area, realizing seamless handover among different typical areas. Bezier curve function model was introduced to different typical areas, which solved the self-adaption recognition problem in different typical areas and revised positional accuracy with the help of cloud computing positioning service. In order to explain the strategy implement, an instance based on the strategy was adopted. Instance analysis indicates that as for the navigation problem in intersection area, intersection transition area and section area, if the relay navigation strategy is utilized, the self-adaption recognition problem in different typical areas can be handled. Based on the relay navigation strategy, the drive of intelligent vehicle on urban roads can effectively solve the self-adaption recognition problem in different typical areas in urban and further solve driving problems of intelligent vehicle of the same category in urban roads.

YS智能化照明管理控制系统

城市道路照明自动化控制和智能化管理作为城市现代化的标志之一,它的推广和实施也将是市政工程建设中的一项重要内容。本文从YS智能化照明的系统原理及组成、系统的应用范围等方面对该系统技术进行了探讨。